From 288379f050284087578b77e04f040b57db3db3f8 Mon Sep 17 00:00:00 2001
From: Ben Hutchings <bhutchings@solarflare.com>
Date: Mon, 19 Jan 2009 16:43:59 -0800
Subject: net: Remove redundant NAPI functions

Following the removal of the unused struct net_device * parameter from
the NAPI functions named *netif_rx_* in commit 908a7a1, they are
exactly equivalent to the corresponding *napi_* functions and are
therefore redundant.

Signed-off-by: Ben Hutchings <bhutchings@solarflare.com>
Acked-by: Neil Horman <nhorman@tuxdriver.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 drivers/net/igb/igb_main.c | 12 ++++++------
 1 file changed, 6 insertions(+), 6 deletions(-)

(limited to 'drivers/net/igb')

diff --git a/drivers/net/igb/igb_main.c b/drivers/net/igb/igb_main.c
index b82b0fb2056..3806bb9d8bf 100644
--- a/drivers/net/igb/igb_main.c
+++ b/drivers/net/igb/igb_main.c
@@ -3386,8 +3386,8 @@ static irqreturn_t igb_msix_rx(int irq, void *data)
 
 	igb_write_itr(rx_ring);
 
-	if (netif_rx_schedule_prep(&rx_ring->napi))
-		__netif_rx_schedule(&rx_ring->napi);
+	if (napi_schedule_prep(&rx_ring->napi))
+		__napi_schedule(&rx_ring->napi);
 
 #ifdef CONFIG_IGB_DCA
 	if (rx_ring->adapter->flags & IGB_FLAG_DCA_ENABLED)
@@ -3539,7 +3539,7 @@ static irqreturn_t igb_intr_msi(int irq, void *data)
 			mod_timer(&adapter->watchdog_timer, jiffies + 1);
 	}
 
-	netif_rx_schedule(&adapter->rx_ring[0].napi);
+	napi_schedule(&adapter->rx_ring[0].napi);
 
 	return IRQ_HANDLED;
 }
@@ -3577,7 +3577,7 @@ static irqreturn_t igb_intr(int irq, void *data)
 			mod_timer(&adapter->watchdog_timer, jiffies + 1);
 	}
 
-	netif_rx_schedule(&adapter->rx_ring[0].napi);
+	napi_schedule(&adapter->rx_ring[0].napi);
 
 	return IRQ_HANDLED;
 }
@@ -3612,7 +3612,7 @@ static int igb_poll(struct napi_struct *napi, int budget)
 	    !netif_running(netdev)) {
 		if (adapter->itr_setting & 3)
 			igb_set_itr(adapter);
-		netif_rx_complete(napi);
+		napi_complete(napi);
 		if (!test_bit(__IGB_DOWN, &adapter->state))
 			igb_irq_enable(adapter);
 		return 0;
@@ -3638,7 +3638,7 @@ static int igb_clean_rx_ring_msix(struct napi_struct *napi, int budget)
 
 	/* If not enough Rx work done, exit the polling mode */
 	if ((work_done == 0) || !netif_running(netdev)) {
-		netif_rx_complete(napi);
+		napi_complete(napi);
 
 		if (adapter->itr_setting & 3) {
 			if (adapter->num_rx_queues == 1)
-- 
cgit v1.2.3-70-g09d2


From 5c0999b72b34541a3734a9138c43d5c024a42d47 Mon Sep 17 00:00:00 2001
From: Herbert Xu <herbert@gondor.apana.org.au>
Date: Mon, 19 Jan 2009 15:20:57 -0800
Subject: igb: Replace LRO with GRO

This patch makes igb invoke the GRO hooks instead of LRO.  As
GRO has a compatible external interface to LRO this is a very
straightforward replacement.

Three things of note:

1) I've kept the LRO Kconfig option until we decide to enable
GRO across the board at which point it can also be killed.

2) The poll_controller stuff is broken in igb as it tries to do
the same work as the normal poll routine.  Since poll_controller
can be called in the middle of a poll, this can't be good.

I noticed this because poll_controller can invoke the GRO hooks
without flushing held GRO packets.

However, this should be harmless (assuming the poll_controller
bug above doesn't kill you first :) since the next ->poll will
clear the backlog.  The only time when we'll have a problem is
if we're already executing the GRO code on the same ring, but
that's no worse than what happens now.

3) I kept the ip_summed check before calling GRO so that we're
on par with previous behaviour.

Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 drivers/net/Kconfig           |  1 -
 drivers/net/igb/igb.h         | 16 --------
 drivers/net/igb/igb_ethtool.c | 17 --------
 drivers/net/igb/igb_main.c    | 90 +++----------------------------------------
 4 files changed, 6 insertions(+), 118 deletions(-)

(limited to 'drivers/net/igb')

diff --git a/drivers/net/Kconfig b/drivers/net/Kconfig
index eccb89770f5..805682586c8 100644
--- a/drivers/net/Kconfig
+++ b/drivers/net/Kconfig
@@ -2022,7 +2022,6 @@ config IGB
 config IGB_LRO 
 	bool "Use software LRO"
 	depends on IGB && INET
-	select INET_LRO
 	---help---
 	  Say Y here if you want to use large receive offload. 
 
diff --git a/drivers/net/igb/igb.h b/drivers/net/igb/igb.h
index 5a27825cc48..7d8c8873915 100644
--- a/drivers/net/igb/igb.h
+++ b/drivers/net/igb/igb.h
@@ -36,12 +36,6 @@
 
 struct igb_adapter;
 
-#ifdef CONFIG_IGB_LRO
-#include <linux/inet_lro.h>
-#define MAX_LRO_AGGR                      32
-#define MAX_LRO_DESCRIPTORS                8
-#endif
-
 /* Interrupt defines */
 #define IGB_MIN_DYN_ITR 3000
 #define IGB_MAX_DYN_ITR 96000
@@ -176,10 +170,6 @@ struct igb_ring {
 			struct napi_struct napi;
 			int set_itr;
 			struct igb_ring *buddy;
-#ifdef CONFIG_IGB_LRO
-			struct net_lro_mgr lro_mgr;
-			bool lro_used;
-#endif
 		};
 	};
 
@@ -288,12 +278,6 @@ struct igb_adapter {
 	int need_ioport;
 
 	struct igb_ring *multi_tx_table[IGB_MAX_TX_QUEUES];
-#ifdef CONFIG_IGB_LRO
-	unsigned int lro_max_aggr;
-	unsigned int lro_aggregated;
-	unsigned int lro_flushed;
-	unsigned int lro_no_desc;
-#endif
 	unsigned int tx_ring_count;
 	unsigned int rx_ring_count;
 };
diff --git a/drivers/net/igb/igb_ethtool.c b/drivers/net/igb/igb_ethtool.c
index 3c831f1472a..4606e63fc6f 100644
--- a/drivers/net/igb/igb_ethtool.c
+++ b/drivers/net/igb/igb_ethtool.c
@@ -93,11 +93,6 @@ static const struct igb_stats igb_gstrings_stats[] = {
 	{ "tx_smbus", IGB_STAT(stats.mgptc) },
 	{ "rx_smbus", IGB_STAT(stats.mgprc) },
 	{ "dropped_smbus", IGB_STAT(stats.mgpdc) },
-#ifdef CONFIG_IGB_LRO
-	{ "lro_aggregated", IGB_STAT(lro_aggregated) },
-	{ "lro_flushed", IGB_STAT(lro_flushed) },
-	{ "lro_no_desc", IGB_STAT(lro_no_desc) },
-#endif
 };
 
 #define IGB_QUEUE_STATS_LEN \
@@ -1921,18 +1916,6 @@ static void igb_get_ethtool_stats(struct net_device *netdev,
 	int stat_count = sizeof(struct igb_queue_stats) / sizeof(u64);
 	int j;
 	int i;
-#ifdef CONFIG_IGB_LRO
-	int aggregated = 0, flushed = 0, no_desc = 0;
-
-	for (i = 0; i < adapter->num_rx_queues; i++) {
-		aggregated += adapter->rx_ring[i].lro_mgr.stats.aggregated;
-		flushed += adapter->rx_ring[i].lro_mgr.stats.flushed;
-		no_desc += adapter->rx_ring[i].lro_mgr.stats.no_desc;
-	}
-	adapter->lro_aggregated = aggregated;
-	adapter->lro_flushed = flushed;
-	adapter->lro_no_desc = no_desc;
-#endif
 
 	igb_update_stats(adapter);
 	for (i = 0; i < IGB_GLOBAL_STATS_LEN; i++) {
diff --git a/drivers/net/igb/igb_main.c b/drivers/net/igb/igb_main.c
index 3806bb9d8bf..dbe03c2b49c 100644
--- a/drivers/net/igb/igb_main.c
+++ b/drivers/net/igb/igb_main.c
@@ -115,9 +115,6 @@ static bool igb_clean_tx_irq(struct igb_ring *);
 static int igb_poll(struct napi_struct *, int);
 static bool igb_clean_rx_irq_adv(struct igb_ring *, int *, int);
 static void igb_alloc_rx_buffers_adv(struct igb_ring *, int);
-#ifdef CONFIG_IGB_LRO
-static int igb_get_skb_hdr(struct sk_buff *skb, void **, void **, u64 *, void *);
-#endif
 static int igb_ioctl(struct net_device *, struct ifreq *, int cmd);
 static void igb_tx_timeout(struct net_device *);
 static void igb_reset_task(struct work_struct *);
@@ -1189,7 +1186,7 @@ static int __devinit igb_probe(struct pci_dev *pdev,
 	netdev->features |= NETIF_F_TSO6;
 
 #ifdef CONFIG_IGB_LRO
-	netdev->features |= NETIF_F_LRO;
+	netdev->features |= NETIF_F_GRO;
 #endif
 
 	netdev->vlan_features |= NETIF_F_TSO;
@@ -1739,14 +1736,6 @@ int igb_setup_rx_resources(struct igb_adapter *adapter,
 	struct pci_dev *pdev = adapter->pdev;
 	int size, desc_len;
 
-#ifdef CONFIG_IGB_LRO
-	size = sizeof(struct net_lro_desc) * MAX_LRO_DESCRIPTORS;
-	rx_ring->lro_mgr.lro_arr = vmalloc(size);
-	if (!rx_ring->lro_mgr.lro_arr)
-		goto err;
-	memset(rx_ring->lro_mgr.lro_arr, 0, size);
-#endif
-
 	size = sizeof(struct igb_buffer) * rx_ring->count;
 	rx_ring->buffer_info = vmalloc(size);
 	if (!rx_ring->buffer_info)
@@ -1773,10 +1762,6 @@ int igb_setup_rx_resources(struct igb_adapter *adapter,
 	return 0;
 
 err:
-#ifdef CONFIG_IGB_LRO
-	vfree(rx_ring->lro_mgr.lro_arr);
-	rx_ring->lro_mgr.lro_arr = NULL;
-#endif
 	vfree(rx_ring->buffer_info);
 	dev_err(&adapter->pdev->dev, "Unable to allocate memory for "
 		"the receive descriptor ring\n");
@@ -1930,16 +1915,6 @@ static void igb_configure_rx(struct igb_adapter *adapter)
 		rxdctl |= IGB_RX_HTHRESH << 8;
 		rxdctl |= IGB_RX_WTHRESH << 16;
 		wr32(E1000_RXDCTL(j), rxdctl);
-#ifdef CONFIG_IGB_LRO
-		/* Intitial LRO Settings */
-		ring->lro_mgr.max_aggr = MAX_LRO_AGGR;
-		ring->lro_mgr.max_desc = MAX_LRO_DESCRIPTORS;
-		ring->lro_mgr.get_skb_header = igb_get_skb_hdr;
-		ring->lro_mgr.features = LRO_F_NAPI | LRO_F_EXTRACT_VLAN_ID;
-		ring->lro_mgr.dev = adapter->netdev;
-		ring->lro_mgr.ip_summed = CHECKSUM_UNNECESSARY;
-		ring->lro_mgr.ip_summed_aggr = CHECKSUM_UNNECESSARY;
-#endif
 	}
 
 	if (adapter->num_rx_queues > 1) {
@@ -2128,11 +2103,6 @@ void igb_free_rx_resources(struct igb_ring *rx_ring)
 	vfree(rx_ring->buffer_info);
 	rx_ring->buffer_info = NULL;
 
-#ifdef CONFIG_IGB_LRO
-	vfree(rx_ring->lro_mgr.lro_arr);
-	rx_ring->lro_mgr.lro_arr = NULL;
-#endif 
-
 	pci_free_consistent(pdev, rx_ring->size, rx_ring->desc, rx_ring->dma);
 
 	rx_ring->desc = NULL;
@@ -3768,39 +3738,6 @@ static bool igb_clean_tx_irq(struct igb_ring *tx_ring)
 	return (count < tx_ring->count);
 }
 
-#ifdef CONFIG_IGB_LRO
- /**
- * igb_get_skb_hdr - helper function for LRO header processing
- * @skb: pointer to sk_buff to be added to LRO packet
- * @iphdr: pointer to ip header structure
- * @tcph: pointer to tcp header structure
- * @hdr_flags: pointer to header flags
- * @priv: pointer to the receive descriptor for the current sk_buff
- **/
-static int igb_get_skb_hdr(struct sk_buff *skb, void **iphdr, void **tcph,
-                           u64 *hdr_flags, void *priv)
-{
-	union e1000_adv_rx_desc *rx_desc = priv;
-	u16 pkt_type = rx_desc->wb.lower.lo_dword.pkt_info &
-	               (E1000_RXDADV_PKTTYPE_IPV4 | E1000_RXDADV_PKTTYPE_TCP);
-
-	/* Verify that this is a valid IPv4 TCP packet */
-	if (pkt_type != (E1000_RXDADV_PKTTYPE_IPV4 |
-	                  E1000_RXDADV_PKTTYPE_TCP))
-		return -1;
-
-	/* Set network headers */
-	skb_reset_network_header(skb);
-	skb_set_transport_header(skb, ip_hdrlen(skb));
-	*iphdr = ip_hdr(skb);
-	*tcph = tcp_hdr(skb);
-	*hdr_flags = LRO_IPV4 | LRO_TCP;
-
-	return 0;
-
-}
-#endif /* CONFIG_IGB_LRO */
-
 /**
  * igb_receive_skb - helper function to handle rx indications
  * @ring: pointer to receive ring receving this packet 
@@ -3815,28 +3752,20 @@ static void igb_receive_skb(struct igb_ring *ring, u8 status,
 	struct igb_adapter * adapter = ring->adapter;
 	bool vlan_extracted = (adapter->vlgrp && (status & E1000_RXD_STAT_VP));
 
-#ifdef CONFIG_IGB_LRO
-	if (adapter->netdev->features & NETIF_F_LRO &&
-	    skb->ip_summed == CHECKSUM_UNNECESSARY) {
+	if (skb->ip_summed == CHECKSUM_UNNECESSARY) {
 		if (vlan_extracted)
-			lro_vlan_hwaccel_receive_skb(&ring->lro_mgr, skb,
-			                   adapter->vlgrp,
-			                   le16_to_cpu(rx_desc->wb.upper.vlan),
-			                   rx_desc);
+			vlan_gro_receive(&ring->napi, adapter->vlgrp,
+			                 le16_to_cpu(rx_desc->wb.upper.vlan),
+			                 skb);
 		else
-			lro_receive_skb(&ring->lro_mgr,skb, rx_desc);
-		ring->lro_used = 1;
+			napi_gro_receive(&ring->napi, skb);
 	} else {
-#endif
 		if (vlan_extracted)
 			vlan_hwaccel_receive_skb(skb, adapter->vlgrp,
 			                  le16_to_cpu(rx_desc->wb.upper.vlan));
 		else
-
 			netif_receive_skb(skb);
-#ifdef CONFIG_IGB_LRO
 	}
-#endif
 }
 
 
@@ -3991,13 +3920,6 @@ next_desc:
 	rx_ring->next_to_clean = i;
 	cleaned_count = IGB_DESC_UNUSED(rx_ring);
 
-#ifdef CONFIG_IGB_LRO
-	if (rx_ring->lro_used) {
-		lro_flush_all(&rx_ring->lro_mgr);
-		rx_ring->lro_used = 0;
-	}
-#endif
-
 	if (cleaned_count)
 		igb_alloc_rx_buffers_adv(rx_ring, cleaned_count);
 
-- 
cgit v1.2.3-70-g09d2


From 5851765cca21e973a7f4850fbaf1ef55e0cb1965 Mon Sep 17 00:00:00 2001
From: Alexander Duyck <alexander.h.duyck@intel.com>
Date: Wed, 21 Jan 2009 14:42:07 -0800
Subject: igb: igb should not flag lltx

Igb has flags enabling lltx but this is a holdover from the earlier
e1000 driver which the igb driver was based off of.

Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 drivers/net/igb/igb_main.c | 1 -
 1 file changed, 1 deletion(-)

(limited to 'drivers/net/igb')

diff --git a/drivers/net/igb/igb_main.c b/drivers/net/igb/igb_main.c
index dbe03c2b49c..e11043d90db 100644
--- a/drivers/net/igb/igb_main.c
+++ b/drivers/net/igb/igb_main.c
@@ -1197,7 +1197,6 @@ static int __devinit igb_probe(struct pci_dev *pdev,
 	if (pci_using_dac)
 		netdev->features |= NETIF_F_HIGHDMA;
 
-	netdev->features |= NETIF_F_LLTX;
 	adapter->en_mng_pt = igb_enable_mng_pass_thru(&adapter->hw);
 
 	/* before reading the NVM, reset the controller to put the device in a
-- 
cgit v1.2.3-70-g09d2


From 921aa7491201b238589ab9f94184b18a1ed00e12 Mon Sep 17 00:00:00 2001
From: Alexander Duyck <alexander.h.duyck@intel.com>
Date: Wed, 21 Jan 2009 14:42:28 -0800
Subject: igb: make certain to power on optics for 82576 fiber nics

It appears that a step was missed in the initialization of 82576 fiber nics
that resulted in it not powering on the optics.

Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 drivers/net/igb/e1000_82575.c | 7 +++++++
 1 file changed, 7 insertions(+)

(limited to 'drivers/net/igb')

diff --git a/drivers/net/igb/e1000_82575.c b/drivers/net/igb/e1000_82575.c
index f5e2e7235fc..9b367ba8e26 100644
--- a/drivers/net/igb/e1000_82575.c
+++ b/drivers/net/igb/e1000_82575.c
@@ -1103,6 +1103,13 @@ static s32 igb_setup_fiber_serdes_link_82575(struct e1000_hw *hw)
 	       E1000_CTRL_SWDPIN1;
 	wr32(E1000_CTRL, reg);
 
+	/* Power on phy for 82576 fiber adapters */
+	if (hw->mac.type == e1000_82576) {
+		reg = rd32(E1000_CTRL_EXT);
+		reg &= ~E1000_CTRL_EXT_SDP7_DATA;
+		wr32(E1000_CTRL_EXT, reg);
+	}
+
 	/* Set switch control to serdes energy detect */
 	reg = rd32(E1000_CONNSW);
 	reg |= E1000_CONNSW_ENRGSRC;
-- 
cgit v1.2.3-70-g09d2


From 0c8dfc830aadd978e461dad66c33741b71c6a0be Mon Sep 17 00:00:00 2001
From: "David S. Miller" <davem@davemloft.net>
Date: Tue, 27 Jan 2009 16:22:32 -0800
Subject: net: Add skb_record_rx_queue() calls to multiqueue capable drivers.

Signed-off-by: David S. Miller <davem@davemloft.net>
---
 drivers/net/bnx2.c              | 2 ++
 drivers/net/bnx2x_main.c        | 1 +
 drivers/net/cxgb3/sge.c         | 1 +
 drivers/net/igb/igb_main.c      | 1 +
 drivers/net/ixgbe/ixgbe_main.c  | 1 +
 drivers/net/mlx4/en_rx.c        | 1 +
 drivers/net/myri10ge/myri10ge.c | 1 +
 drivers/net/niu.c               | 1 +
 drivers/net/qlge/qlge_main.c    | 1 +
 drivers/net/s2io.c              | 1 +
 drivers/net/sfc/rx.c            | 2 ++
 11 files changed, 13 insertions(+)

(limited to 'drivers/net/igb')

diff --git a/drivers/net/bnx2.c b/drivers/net/bnx2.c
index fe575b9a9b7..49e0e51a9df 100644
--- a/drivers/net/bnx2.c
+++ b/drivers/net/bnx2.c
@@ -3007,6 +3007,8 @@ bnx2_rx_int(struct bnx2 *bp, struct bnx2_napi *bnapi, int budget)
 				skb->ip_summed = CHECKSUM_UNNECESSARY;
 		}
 
+		skb_record_rx_queue(skb, bnapi - &bp->bnx2_napi[0]);
+
 #ifdef BCM_VLAN
 		if (hw_vlan)
 			vlan_hwaccel_receive_skb(skb, bp->vlgrp, vtag);
diff --git a/drivers/net/bnx2x_main.c b/drivers/net/bnx2x_main.c
index 71f81c79d63..88da14c141f 100644
--- a/drivers/net/bnx2x_main.c
+++ b/drivers/net/bnx2x_main.c
@@ -1325,6 +1325,7 @@ static void bnx2x_tpa_stop(struct bnx2x *bp, struct bnx2x_fastpath *fp,
 
 		skb->protocol = eth_type_trans(skb, bp->dev);
 		skb->ip_summed = CHECKSUM_UNNECESSARY;
+		skb_record_rx_queue(skb, queue);
 
 		{
 			struct iphdr *iph;
diff --git a/drivers/net/cxgb3/sge.c b/drivers/net/cxgb3/sge.c
index 8299fb538f2..272a0168f3e 100644
--- a/drivers/net/cxgb3/sge.c
+++ b/drivers/net/cxgb3/sge.c
@@ -1937,6 +1937,7 @@ static void rx_eth(struct adapter *adap, struct sge_rspq *rq,
 		skb->ip_summed = CHECKSUM_UNNECESSARY;
 	} else
 		skb->ip_summed = CHECKSUM_NONE;
+	skb_record_rx_queue(skb, qs - &adap->sge.qs[0]);
 
 	if (unlikely(p->vlan_valid)) {
 		struct vlan_group *grp = pi->vlan_grp;
diff --git a/drivers/net/igb/igb_main.c b/drivers/net/igb/igb_main.c
index e11043d90db..bd166803671 100644
--- a/drivers/net/igb/igb_main.c
+++ b/drivers/net/igb/igb_main.c
@@ -3751,6 +3751,7 @@ static void igb_receive_skb(struct igb_ring *ring, u8 status,
 	struct igb_adapter * adapter = ring->adapter;
 	bool vlan_extracted = (adapter->vlgrp && (status & E1000_RXD_STAT_VP));
 
+	skb_record_rx_queue(skb, ring->queue_index);
 	if (skb->ip_summed == CHECKSUM_UNNECESSARY) {
 		if (vlan_extracted)
 			vlan_gro_receive(&ring->napi, adapter->vlgrp,
diff --git a/drivers/net/ixgbe/ixgbe_main.c b/drivers/net/ixgbe/ixgbe_main.c
index 43980dc45e3..fe4a4d17c4b 100644
--- a/drivers/net/ixgbe/ixgbe_main.c
+++ b/drivers/net/ixgbe/ixgbe_main.c
@@ -414,6 +414,7 @@ static void ixgbe_receive_skb(struct ixgbe_q_vector *q_vector,
 	bool is_vlan = (status & IXGBE_RXD_STAT_VP);
 	u16 tag = le16_to_cpu(rx_desc->wb.upper.vlan);
 
+	skb_record_rx_queue(skb, q_vector - &adapter->q_vector[0]);
 	if (skb->ip_summed == CHECKSUM_UNNECESSARY) {
 		if (adapter->vlgrp && is_vlan && (tag != 0))
 			vlan_gro_receive(napi, adapter->vlgrp, tag, skb);
diff --git a/drivers/net/mlx4/en_rx.c b/drivers/net/mlx4/en_rx.c
index ac55ebd2f14..a4130e76499 100644
--- a/drivers/net/mlx4/en_rx.c
+++ b/drivers/net/mlx4/en_rx.c
@@ -768,6 +768,7 @@ int mlx4_en_process_rx_cq(struct net_device *dev, struct mlx4_en_cq *cq, int bud
 
 		skb->ip_summed = ip_summed;
 		skb->protocol = eth_type_trans(skb, dev);
+		skb_record_rx_queue(skb, cq->ring);
 
 		/* Push it up the stack */
 		if (priv->vlgrp && (be32_to_cpu(cqe->vlan_my_qpn) &
diff --git a/drivers/net/myri10ge/myri10ge.c b/drivers/net/myri10ge/myri10ge.c
index 2dacb8852dc..aea9fdaa3cd 100644
--- a/drivers/net/myri10ge/myri10ge.c
+++ b/drivers/net/myri10ge/myri10ge.c
@@ -1324,6 +1324,7 @@ myri10ge_rx_done(struct myri10ge_slice_state *ss, struct myri10ge_rx_buf *rx,
 		skb_shinfo(skb)->nr_frags = 0;
 	}
 	skb->protocol = eth_type_trans(skb, dev);
+	skb_record_rx_queue(skb, ss - &mgp->ss[0]);
 
 	if (mgp->csum_flag) {
 		if ((skb->protocol == htons(ETH_P_IP)) ||
diff --git a/drivers/net/niu.c b/drivers/net/niu.c
index 4a5a089fa30..2346ca6bf5b 100644
--- a/drivers/net/niu.c
+++ b/drivers/net/niu.c
@@ -3390,6 +3390,7 @@ static int niu_process_rx_pkt(struct niu *np, struct rx_ring_info *rp)
 	rp->rx_bytes += skb->len;
 
 	skb->protocol = eth_type_trans(skb, np->dev);
+	skb_record_rx_queue(skb, rp->rx_channel);
 	netif_receive_skb(skb);
 
 	return num_rcr;
diff --git a/drivers/net/qlge/qlge_main.c b/drivers/net/qlge/qlge_main.c
index 16eb9dd8528..4ab6e72ea95 100644
--- a/drivers/net/qlge/qlge_main.c
+++ b/drivers/net/qlge/qlge_main.c
@@ -1436,6 +1436,7 @@ static void ql_process_mac_rx_intr(struct ql_adapter *qdev,
 	qdev->stats.rx_packets++;
 	qdev->stats.rx_bytes += skb->len;
 	skb->protocol = eth_type_trans(skb, ndev);
+	skb_record_rx_queue(skb, rx_ring - &qdev->rx_ring[0]);
 	if (qdev->vlgrp && (ib_mac_rsp->flags2 & IB_MAC_IOCB_RSP_V)) {
 		QPRINTK(qdev, RX_STATUS, DEBUG,
 			"Passing a VLAN packet upstream.\n");
diff --git a/drivers/net/s2io.c b/drivers/net/s2io.c
index 2a96a10fd0c..e0a353f4ec9 100644
--- a/drivers/net/s2io.c
+++ b/drivers/net/s2io.c
@@ -7542,6 +7542,7 @@ static int rx_osm_handler(struct ring_info *ring_data, struct RxD_t * rxdp)
 
 	sp->mac_control.stats_info->sw_stat.mem_freed += skb->truesize;
 send_up:
+	skb_record_rx_queue(skb, ring_no);
 	queue_rx_frame(skb, RXD_GET_VLAN_TAG(rxdp->Control_2));
 aggregate:
 	sp->mac_control.rings[ring_no].rx_bufs_left -= 1;
diff --git a/drivers/net/sfc/rx.c b/drivers/net/sfc/rx.c
index a0345b38097..66d7fe3db3e 100644
--- a/drivers/net/sfc/rx.c
+++ b/drivers/net/sfc/rx.c
@@ -575,6 +575,8 @@ void __efx_rx_packet(struct efx_channel *channel,
 	/* Set the SKB flags */
 	skb->ip_summed = CHECKSUM_NONE;
 
+	skb_record_rx_queue(skb, channel->channel);
+
 	/* Pass the packet up */
 	netif_receive_skb(skb);
 
-- 
cgit v1.2.3-70-g09d2


From 09640e6365c679b5642b1c41b6d7078f51689ddf Mon Sep 17 00:00:00 2001
From: Harvey Harrison <harvey.harrison@gmail.com>
Date: Sun, 1 Feb 2009 00:45:17 -0800
Subject: net: replace uses of __constant_{endian}

Base versions handle constant folding now.

Signed-off-by: Harvey Harrison <harvey.harrison@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 drivers/net/arcnet/arc-rawmode.c        |  2 +-
 drivers/net/arcnet/capmode.c            |  4 ++--
 drivers/net/bonding/bond_3ad.h          |  2 +-
 drivers/net/bonding/bond_alb.c          |  4 ++--
 drivers/net/e1000/e1000_main.c          |  4 ++--
 drivers/net/e1000e/netdev.c             |  4 ++--
 drivers/net/enic/enic_main.c            |  4 ++--
 drivers/net/hamachi.c                   |  8 ++++----
 drivers/net/hamradio/bpqether.c         |  2 +-
 drivers/net/igb/igb_main.c              |  4 ++--
 drivers/net/ixgbe/ixgbe_main.c          |  4 ++--
 drivers/net/myri_sbus.c                 |  2 +-
 drivers/net/netxen/netxen_nic_main.c    |  8 ++++----
 drivers/net/niu.c                       |  4 ++--
 drivers/net/pppoe.c                     |  8 ++++----
 drivers/net/ps3_gelic_net.c             |  2 +-
 drivers/net/sfc/bitfield.h              |  4 ++--
 drivers/net/tun.c                       |  2 +-
 drivers/net/usb/hso.c                   |  3 +--
 drivers/net/via-velocity.h              |  6 +++---
 drivers/net/wan/hdlc.c                  |  2 +-
 drivers/net/wan/hdlc_cisco.c            | 16 ++++++++--------
 drivers/net/wan/hdlc_fr.c               | 16 ++++++++--------
 drivers/net/wan/hdlc_ppp.c              |  4 ++--
 drivers/net/wan/hdlc_raw.c              |  2 +-
 drivers/net/wan/lapbether.c             |  2 +-
 net/802/psnap.c                         |  2 +-
 net/8021q/vlan.c                        |  2 +-
 net/appletalk/ddp.c                     |  4 ++--
 net/ax25/af_ax25.c                      |  2 +-
 net/bridge/br_netfilter.c               |  2 +-
 net/can/af_can.c                        |  2 +-
 net/decnet/af_decnet.c                  |  2 +-
 net/decnet/dn_route.c                   |  2 +-
 net/dsa/mv88e6123_61_65.c               |  2 +-
 net/dsa/mv88e6131.c                     |  2 +-
 net/dsa/tag_dsa.c                       |  2 +-
 net/dsa/tag_edsa.c                      |  2 +-
 net/dsa/tag_trailer.c                   |  2 +-
 net/econet/af_econet.c                  |  2 +-
 net/ipv4/af_inet.c                      |  2 +-
 net/ipv4/arp.c                          |  2 +-
 net/ipv4/ipconfig.c                     |  8 ++++----
 net/ipv4/netfilter/nf_nat_snmp_basic.c  |  4 ++--
 net/ipv4/route.c                        |  4 ++--
 net/ipv4/xfrm4_policy.c                 |  2 +-
 net/ipv6/af_inet6.c                     |  2 +-
 net/ipv6/route.c                        |  4 ++--
 net/ipv6/xfrm6_policy.c                 |  2 +-
 net/ipx/af_ipx.c                        |  4 ++--
 net/irda/irmod.c                        |  2 +-
 net/llc/llc_core.c                      |  4 ++--
 net/netfilter/ipvs/ip_vs_sync.c         |  4 ++--
 net/netfilter/nf_conntrack_amanda.c     |  4 ++--
 net/netfilter/nf_conntrack_h323_main.c  |  8 ++++----
 net/netfilter/nf_conntrack_netbios_ns.c |  2 +-
 net/netfilter/nf_conntrack_pptp.c       |  2 +-
 net/phonet/af_phonet.c                  |  2 +-
 net/sctp/output.c                       |  2 +-
 net/sctp/sm_make_chunk.c                |  4 ++--
 net/x25/af_x25.c                        |  2 +-
 61 files changed, 111 insertions(+), 112 deletions(-)

(limited to 'drivers/net/igb')

diff --git a/drivers/net/arcnet/arc-rawmode.c b/drivers/net/arcnet/arc-rawmode.c
index da017cbb5f6..646dfc5f50c 100644
--- a/drivers/net/arcnet/arc-rawmode.c
+++ b/drivers/net/arcnet/arc-rawmode.c
@@ -122,7 +122,7 @@ static void rx(struct net_device *dev, int bufnum,
 
 	BUGLVL(D_SKB) arcnet_dump_skb(dev, skb, "rx");
 
-	skb->protocol = __constant_htons(ETH_P_ARCNET);
+	skb->protocol = cpu_to_be16(ETH_P_ARCNET);
 ;
 	netif_rx(skb);
 }
diff --git a/drivers/net/arcnet/capmode.c b/drivers/net/arcnet/capmode.c
index 1613929ff30..083e21094b2 100644
--- a/drivers/net/arcnet/capmode.c
+++ b/drivers/net/arcnet/capmode.c
@@ -148,7 +148,7 @@ static void rx(struct net_device *dev, int bufnum,
 
 	BUGLVL(D_SKB) arcnet_dump_skb(dev, skb, "rx");
 
-	skb->protocol = __constant_htons(ETH_P_ARCNET);
+	skb->protocol = cpu_to_be16(ETH_P_ARCNET);
 ;
 	netif_rx(skb);
 }
@@ -282,7 +282,7 @@ static int ack_tx(struct net_device *dev, int acked)
   BUGMSG(D_PROTO, "Ackknowledge for cap packet %x.\n",
 	 *((int*)&ackpkt->soft.cap.cookie[0]));
 
-  ackskb->protocol = __constant_htons(ETH_P_ARCNET);
+  ackskb->protocol = cpu_to_be16(ETH_P_ARCNET);
 
   BUGLVL(D_SKB) arcnet_dump_skb(dev, ackskb, "ack_tx_recv");
   netif_rx(ackskb);
diff --git a/drivers/net/bonding/bond_3ad.h b/drivers/net/bonding/bond_3ad.h
index 8a83eb283c2..a306230381c 100644
--- a/drivers/net/bonding/bond_3ad.h
+++ b/drivers/net/bonding/bond_3ad.h
@@ -29,7 +29,7 @@
 
 // General definitions
 #define BOND_ETH_P_LACPDU       0x8809
-#define PKT_TYPE_LACPDU         __constant_htons(BOND_ETH_P_LACPDU)
+#define PKT_TYPE_LACPDU         cpu_to_be16(BOND_ETH_P_LACPDU)
 #define AD_TIMER_INTERVAL       100 /*msec*/
 
 #define MULTICAST_LACPDU_ADDR    {0x01, 0x80, 0xC2, 0x00, 0x00, 0x02}
diff --git a/drivers/net/bonding/bond_alb.c b/drivers/net/bonding/bond_alb.c
index 27fb7f5c21c..409b1407427 100644
--- a/drivers/net/bonding/bond_alb.c
+++ b/drivers/net/bonding/bond_alb.c
@@ -822,7 +822,7 @@ static int rlb_initialize(struct bonding *bond)
 	_unlock_rx_hashtbl(bond);
 
 	/*initialize packet type*/
-	pk_type->type = __constant_htons(ETH_P_ARP);
+	pk_type->type = cpu_to_be16(ETH_P_ARP);
 	pk_type->dev = NULL;
 	pk_type->func = rlb_arp_recv;
 
@@ -892,7 +892,7 @@ static void alb_send_learning_packets(struct slave *slave, u8 mac_addr[])
 	memset(&pkt, 0, size);
 	memcpy(pkt.mac_dst, mac_addr, ETH_ALEN);
 	memcpy(pkt.mac_src, mac_addr, ETH_ALEN);
-	pkt.type = __constant_htons(ETH_P_LOOP);
+	pkt.type = cpu_to_be16(ETH_P_LOOP);
 
 	for (i = 0; i < MAX_LP_BURST; i++) {
 		struct sk_buff *skb;
diff --git a/drivers/net/e1000/e1000_main.c b/drivers/net/e1000/e1000_main.c
index c4a303023b3..40db34deebd 100644
--- a/drivers/net/e1000/e1000_main.c
+++ b/drivers/net/e1000/e1000_main.c
@@ -2860,11 +2860,11 @@ static bool e1000_tx_csum(struct e1000_adapter *adapter,
 		return false;
 
 	switch (skb->protocol) {
-	case __constant_htons(ETH_P_IP):
+	case cpu_to_be16(ETH_P_IP):
 		if (ip_hdr(skb)->protocol == IPPROTO_TCP)
 			cmd_len |= E1000_TXD_CMD_TCP;
 		break;
-	case __constant_htons(ETH_P_IPV6):
+	case cpu_to_be16(ETH_P_IPV6):
 		/* XXX not handling all IPV6 headers */
 		if (ipv6_hdr(skb)->nexthdr == IPPROTO_TCP)
 			cmd_len |= E1000_TXD_CMD_TCP;
diff --git a/drivers/net/e1000e/netdev.c b/drivers/net/e1000e/netdev.c
index e04b392c9a5..c425b19e336 100644
--- a/drivers/net/e1000e/netdev.c
+++ b/drivers/net/e1000e/netdev.c
@@ -3770,11 +3770,11 @@ static bool e1000_tx_csum(struct e1000_adapter *adapter, struct sk_buff *skb)
 		return 0;
 
 	switch (skb->protocol) {
-	case __constant_htons(ETH_P_IP):
+	case cpu_to_be16(ETH_P_IP):
 		if (ip_hdr(skb)->protocol == IPPROTO_TCP)
 			cmd_len |= E1000_TXD_CMD_TCP;
 		break;
-	case __constant_htons(ETH_P_IPV6):
+	case cpu_to_be16(ETH_P_IPV6):
 		/* XXX not handling all IPV6 headers */
 		if (ipv6_hdr(skb)->nexthdr == IPPROTO_TCP)
 			cmd_len |= E1000_TXD_CMD_TCP;
diff --git a/drivers/net/enic/enic_main.c b/drivers/net/enic/enic_main.c
index 4617956821c..5dd11563553 100644
--- a/drivers/net/enic/enic_main.c
+++ b/drivers/net/enic/enic_main.c
@@ -570,11 +570,11 @@ static inline void enic_queue_wq_skb_tso(struct enic *enic,
 	 * to each TCP segment resulting from the TSO.
 	 */
 
-	if (skb->protocol == __constant_htons(ETH_P_IP)) {
+	if (skb->protocol == cpu_to_be16(ETH_P_IP)) {
 		ip_hdr(skb)->check = 0;
 		tcp_hdr(skb)->check = ~csum_tcpudp_magic(ip_hdr(skb)->saddr,
 			ip_hdr(skb)->daddr, 0, IPPROTO_TCP, 0);
-	} else if (skb->protocol == __constant_htons(ETH_P_IPV6)) {
+	} else if (skb->protocol == cpu_to_be16(ETH_P_IPV6)) {
 		tcp_hdr(skb)->check = ~csum_ipv6_magic(&ipv6_hdr(skb)->saddr,
 			&ipv6_hdr(skb)->daddr, 0, IPPROTO_TCP, 0);
 	}
diff --git a/drivers/net/hamachi.c b/drivers/net/hamachi.c
index 7e8b3c59a7d..455641f8677 100644
--- a/drivers/net/hamachi.c
+++ b/drivers/net/hamachi.c
@@ -1244,7 +1244,7 @@ do { \
     csum_add(sum, (ih)->saddr & 0xffff); \
     csum_add(sum, (ih)->daddr >> 16); \
     csum_add(sum, (ih)->daddr & 0xffff); \
-    csum_add(sum, __constant_htons(IPPROTO_UDP)); \
+    csum_add(sum, cpu_to_be16(IPPROTO_UDP)); \
     csum_add(sum, (uh)->len); \
 } while (0)
 
@@ -1255,7 +1255,7 @@ do { \
     csum_add(sum, (ih)->saddr & 0xffff); \
     csum_add(sum, (ih)->daddr >> 16); \
     csum_add(sum, (ih)->daddr & 0xffff); \
-    csum_add(sum, __constant_htons(IPPROTO_TCP)); \
+    csum_add(sum, cpu_to_be16(IPPROTO_TCP)); \
     csum_add(sum, htons(len)); \
 } while (0)
 #endif
@@ -1296,7 +1296,7 @@ static int hamachi_start_xmit(struct sk_buff *skb, struct net_device *dev)
 	    /* tack on checksum tag */
 	    u32 tagval = 0;
 	    struct ethhdr *eh = (struct ethhdr *)skb->data;
-	    if (eh->h_proto == __constant_htons(ETH_P_IP)) {
+	    if (eh->h_proto == cpu_to_be16(ETH_P_IP)) {
 		struct iphdr *ih = (struct iphdr *)((char *)eh + ETH_HLEN);
 		if (ih->protocol == IPPROTO_UDP) {
 		    struct udphdr *uh
@@ -1605,7 +1605,7 @@ static int hamachi_rx(struct net_device *dev)
 				 */
 				if (ntohs(ih->tot_len) >= 46){
 					/* don't worry about frags */
-					if (!(ih->frag_off & __constant_htons(IP_MF|IP_OFFSET))) {
+					if (!(ih->frag_off & cpu_to_be16(IP_MF|IP_OFFSET))) {
 						u32 inv = *(u32 *) &buf_addr[data_size - 16];
 						u32 *p = (u32 *) &buf_addr[data_size - 20];
 						register u32 crc, p_r, p_r1;
diff --git a/drivers/net/hamradio/bpqether.c b/drivers/net/hamradio/bpqether.c
index 1f65d1edf13..2c619bc99ae 100644
--- a/drivers/net/hamradio/bpqether.c
+++ b/drivers/net/hamradio/bpqether.c
@@ -97,7 +97,7 @@ static int bpq_rcv(struct sk_buff *, struct net_device *, struct packet_type *,
 static int bpq_device_event(struct notifier_block *, unsigned long, void *);
 
 static struct packet_type bpq_packet_type = {
-	.type	= __constant_htons(ETH_P_BPQ),
+	.type	= cpu_to_be16(ETH_P_BPQ),
 	.func	= bpq_rcv,
 };
 
diff --git a/drivers/net/igb/igb_main.c b/drivers/net/igb/igb_main.c
index bd166803671..cd794bac8b8 100644
--- a/drivers/net/igb/igb_main.c
+++ b/drivers/net/igb/igb_main.c
@@ -2749,12 +2749,12 @@ static inline bool igb_tx_csum_adv(struct igb_adapter *adapter,
 
 		if (skb->ip_summed == CHECKSUM_PARTIAL) {
 			switch (skb->protocol) {
-			case __constant_htons(ETH_P_IP):
+			case cpu_to_be16(ETH_P_IP):
 				tu_cmd |= E1000_ADVTXD_TUCMD_IPV4;
 				if (ip_hdr(skb)->protocol == IPPROTO_TCP)
 					tu_cmd |= E1000_ADVTXD_TUCMD_L4T_TCP;
 				break;
-			case __constant_htons(ETH_P_IPV6):
+			case cpu_to_be16(ETH_P_IPV6):
 				/* XXX what about other V6 headers?? */
 				if (ipv6_hdr(skb)->nexthdr == IPPROTO_TCP)
 					tu_cmd |= E1000_ADVTXD_TUCMD_L4T_TCP;
diff --git a/drivers/net/ixgbe/ixgbe_main.c b/drivers/net/ixgbe/ixgbe_main.c
index fe4a4d17c4b..88615f69976 100644
--- a/drivers/net/ixgbe/ixgbe_main.c
+++ b/drivers/net/ixgbe/ixgbe_main.c
@@ -3567,13 +3567,13 @@ static bool ixgbe_tx_csum(struct ixgbe_adapter *adapter,
 
 		if (skb->ip_summed == CHECKSUM_PARTIAL) {
 			switch (skb->protocol) {
-			case __constant_htons(ETH_P_IP):
+			case cpu_to_be16(ETH_P_IP):
 				type_tucmd_mlhl |= IXGBE_ADVTXD_TUCMD_IPV4;
 				if (ip_hdr(skb)->protocol == IPPROTO_TCP)
 					type_tucmd_mlhl |=
 					        IXGBE_ADVTXD_TUCMD_L4T_TCP;
 				break;
-			case __constant_htons(ETH_P_IPV6):
+			case cpu_to_be16(ETH_P_IPV6):
 				/* XXX what about other V6 headers?? */
 				if (ipv6_hdr(skb)->nexthdr == IPPROTO_TCP)
 					type_tucmd_mlhl |=
diff --git a/drivers/net/myri_sbus.c b/drivers/net/myri_sbus.c
index 899ed065a14..88b52883ace 100644
--- a/drivers/net/myri_sbus.c
+++ b/drivers/net/myri_sbus.c
@@ -748,7 +748,7 @@ static int myri_rebuild_header(struct sk_buff *skb)
 	switch (eth->h_proto)
 	{
 #ifdef CONFIG_INET
-	case __constant_htons(ETH_P_IP):
+	case cpu_to_be16(ETH_P_IP):
  		return arp_find(eth->h_dest, skb);
 #endif
 
diff --git a/drivers/net/netxen/netxen_nic_main.c b/drivers/net/netxen/netxen_nic_main.c
index cc06cc5429f..ada462e94c9 100644
--- a/drivers/net/netxen/netxen_nic_main.c
+++ b/drivers/net/netxen/netxen_nic_main.c
@@ -1170,7 +1170,7 @@ static bool netxen_tso_check(struct net_device *netdev,
 	__be16 protocol = skb->protocol;
 	u16 flags = 0;
 
-	if (protocol == __constant_htons(ETH_P_8021Q)) {
+	if (protocol == cpu_to_be16(ETH_P_8021Q)) {
 		struct vlan_ethhdr *vh = (struct vlan_ethhdr *)skb->data;
 		protocol = vh->h_vlan_encapsulated_proto;
 		flags = FLAGS_VLAN_TAGGED;
@@ -1183,21 +1183,21 @@ static bool netxen_tso_check(struct net_device *netdev,
 		desc->total_hdr_length =
 			skb_transport_offset(skb) + tcp_hdrlen(skb);
 
-		opcode = (protocol == __constant_htons(ETH_P_IPV6)) ?
+		opcode = (protocol == cpu_to_be16(ETH_P_IPV6)) ?
 				TX_TCP_LSO6 : TX_TCP_LSO;
 		tso = true;
 
 	} else if (skb->ip_summed == CHECKSUM_PARTIAL) {
 		u8 l4proto;
 
-		if (protocol == __constant_htons(ETH_P_IP)) {
+		if (protocol == cpu_to_be16(ETH_P_IP)) {
 			l4proto = ip_hdr(skb)->protocol;
 
 			if (l4proto == IPPROTO_TCP)
 				opcode = TX_TCP_PKT;
 			else if(l4proto == IPPROTO_UDP)
 				opcode = TX_UDP_PKT;
-		} else if (protocol == __constant_htons(ETH_P_IPV6)) {
+		} else if (protocol == cpu_to_be16(ETH_P_IPV6)) {
 			l4proto = ipv6_hdr(skb)->nexthdr;
 
 			if (l4proto == IPPROTO_TCP)
diff --git a/drivers/net/niu.c b/drivers/net/niu.c
index 2346ca6bf5b..c26325ded20 100644
--- a/drivers/net/niu.c
+++ b/drivers/net/niu.c
@@ -6447,11 +6447,11 @@ static u64 niu_compute_tx_flags(struct sk_buff *skb, struct ethhdr *ehdr,
 
 	ipv6 = ihl = 0;
 	switch (skb->protocol) {
-	case __constant_htons(ETH_P_IP):
+	case cpu_to_be16(ETH_P_IP):
 		ip_proto = ip_hdr(skb)->protocol;
 		ihl = ip_hdr(skb)->ihl;
 		break;
-	case __constant_htons(ETH_P_IPV6):
+	case cpu_to_be16(ETH_P_IPV6):
 		ip_proto = ipv6_hdr(skb)->nexthdr;
 		ihl = (40 >> 2);
 		ipv6 = 1;
diff --git a/drivers/net/pppoe.c b/drivers/net/pppoe.c
index 074803a78fc..1011fd64108 100644
--- a/drivers/net/pppoe.c
+++ b/drivers/net/pppoe.c
@@ -514,12 +514,12 @@ out:
 }
 
 static struct packet_type pppoes_ptype = {
-	.type	= __constant_htons(ETH_P_PPP_SES),
+	.type	= cpu_to_be16(ETH_P_PPP_SES),
 	.func	= pppoe_rcv,
 };
 
 static struct packet_type pppoed_ptype = {
-	.type	= __constant_htons(ETH_P_PPP_DISC),
+	.type	= cpu_to_be16(ETH_P_PPP_DISC),
 	.func	= pppoe_disc_rcv,
 };
 
@@ -877,7 +877,7 @@ static int pppoe_sendmsg(struct kiocb *iocb, struct socket *sock,
 	skb->dev = dev;
 
 	skb->priority = sk->sk_priority;
-	skb->protocol = __constant_htons(ETH_P_PPP_SES);
+	skb->protocol = cpu_to_be16(ETH_P_PPP_SES);
 
 	ph = (struct pppoe_hdr *)skb_put(skb, total_len + sizeof(struct pppoe_hdr));
 	start = (char *)&ph->tag[0];
@@ -937,7 +937,7 @@ static int __pppoe_xmit(struct sock *sk, struct sk_buff *skb)
 	ph->sid	= po->num;
 	ph->length = htons(data_len);
 
-	skb->protocol = __constant_htons(ETH_P_PPP_SES);
+	skb->protocol = cpu_to_be16(ETH_P_PPP_SES);
 	skb->dev = dev;
 
 	dev_hard_header(skb, dev, ETH_P_PPP_SES,
diff --git a/drivers/net/ps3_gelic_net.c b/drivers/net/ps3_gelic_net.c
index 06649d0c209..30900b30d53 100644
--- a/drivers/net/ps3_gelic_net.c
+++ b/drivers/net/ps3_gelic_net.c
@@ -745,7 +745,7 @@ static inline struct sk_buff *gelic_put_vlan_tag(struct sk_buff *skb,
 	/* Move the mac addresses to the top of buffer */
 	memmove(skb->data, skb->data + VLAN_HLEN, 2 * ETH_ALEN);
 
-	veth->h_vlan_proto = __constant_htons(ETH_P_8021Q);
+	veth->h_vlan_proto = cpu_to_be16(ETH_P_8021Q);
 	veth->h_vlan_TCI = htons(tag);
 
 	return skb;
diff --git a/drivers/net/sfc/bitfield.h b/drivers/net/sfc/bitfield.h
index d95c2182801..d54d84c267b 100644
--- a/drivers/net/sfc/bitfield.h
+++ b/drivers/net/sfc/bitfield.h
@@ -543,7 +543,7 @@ typedef union efx_oword {
 
 /* Static initialiser */
 #define EFX_OWORD32(a, b, c, d)						\
-	{ .u32 = { __constant_cpu_to_le32(a), __constant_cpu_to_le32(b), \
-		   __constant_cpu_to_le32(c), __constant_cpu_to_le32(d) } }
+	{ .u32 = { cpu_to_le32(a), cpu_to_le32(b), \
+		   cpu_to_le32(c), cpu_to_le32(d) } }
 
 #endif /* EFX_BITFIELD_H */
diff --git a/drivers/net/tun.c b/drivers/net/tun.c
index e9bcbdfe015..457f2d7430c 100644
--- a/drivers/net/tun.c
+++ b/drivers/net/tun.c
@@ -543,7 +543,7 @@ static struct sk_buff *tun_alloc_skb(size_t prepad, size_t len, size_t linear,
 /* Get packet from user space buffer */
 static __inline__ ssize_t tun_get_user(struct tun_struct *tun, struct iovec *iv, size_t count)
 {
-	struct tun_pi pi = { 0, __constant_htons(ETH_P_IP) };
+	struct tun_pi pi = { 0, cpu_to_be16(ETH_P_IP) };
 	struct sk_buff *skb;
 	size_t len = count, align = 0;
 	struct virtio_net_hdr gso = { 0 };
diff --git a/drivers/net/usb/hso.c b/drivers/net/usb/hso.c
index 0d0fa91c025..806cc5da56c 100644
--- a/drivers/net/usb/hso.c
+++ b/drivers/net/usb/hso.c
@@ -934,8 +934,7 @@ static void packetizeRx(struct hso_net *odev, unsigned char *ip_pkt,
 			if (!odev->rx_buf_missing) {
 				/* Packet is complete. Inject into stack. */
 				/* We have IP packet here */
-				odev->skb_rx_buf->protocol =
-						__constant_htons(ETH_P_IP);
+				odev->skb_rx_buf->protocol = cpu_to_be16(ETH_P_IP);
 				/* don't check it */
 				odev->skb_rx_buf->ip_summed =
 					CHECKSUM_UNNECESSARY;
diff --git a/drivers/net/via-velocity.h b/drivers/net/via-velocity.h
index 29a33090d3d..ea43e1832af 100644
--- a/drivers/net/via-velocity.h
+++ b/drivers/net/via-velocity.h
@@ -183,7 +183,7 @@ struct rdesc1 {
 };
 
 enum {
-	RX_INTEN = __constant_cpu_to_le16(0x8000)
+	RX_INTEN = cpu_to_le16(0x8000)
 };
 
 struct rx_desc {
@@ -210,7 +210,7 @@ struct tdesc1 {
 } __attribute__ ((__packed__));
 
 enum {
-	TD_QUEUE = __constant_cpu_to_le16(0x8000)
+	TD_QUEUE = cpu_to_le16(0x8000)
 };
 
 struct td_buf {
@@ -242,7 +242,7 @@ struct velocity_td_info {
 
 enum  velocity_owner {
 	OWNED_BY_HOST = 0,
-	OWNED_BY_NIC = __constant_cpu_to_le16(0x8000)
+	OWNED_BY_NIC = cpu_to_le16(0x8000)
 };
 
 
diff --git a/drivers/net/wan/hdlc.c b/drivers/net/wan/hdlc.c
index 43da8bd7297..5ce43720555 100644
--- a/drivers/net/wan/hdlc.c
+++ b/drivers/net/wan/hdlc.c
@@ -349,7 +349,7 @@ EXPORT_SYMBOL(attach_hdlc_protocol);
 EXPORT_SYMBOL(detach_hdlc_protocol);
 
 static struct packet_type hdlc_packet_type = {
-	.type = __constant_htons(ETH_P_HDLC),
+	.type = cpu_to_be16(ETH_P_HDLC),
 	.func = hdlc_rcv,
 };
 
diff --git a/drivers/net/wan/hdlc_cisco.c b/drivers/net/wan/hdlc_cisco.c
index af3fd4fead8..cf5fd17ad70 100644
--- a/drivers/net/wan/hdlc_cisco.c
+++ b/drivers/net/wan/hdlc_cisco.c
@@ -117,7 +117,7 @@ static void cisco_keepalive_send(struct net_device *dev, u32 type,
 	data->type = htonl(type);
 	data->par1 = par1;
 	data->par2 = par2;
-	data->rel = __constant_htons(0xFFFF);
+	data->rel = cpu_to_be16(0xFFFF);
 	/* we will need do_div here if 1000 % HZ != 0 */
 	data->time = htonl((jiffies - INITIAL_JIFFIES) * (1000 / HZ));
 
@@ -136,20 +136,20 @@ static __be16 cisco_type_trans(struct sk_buff *skb, struct net_device *dev)
 	struct hdlc_header *data = (struct hdlc_header*)skb->data;
 
 	if (skb->len < sizeof(struct hdlc_header))
-		return __constant_htons(ETH_P_HDLC);
+		return cpu_to_be16(ETH_P_HDLC);
 
 	if (data->address != CISCO_MULTICAST &&
 	    data->address != CISCO_UNICAST)
-		return __constant_htons(ETH_P_HDLC);
+		return cpu_to_be16(ETH_P_HDLC);
 
 	switch(data->protocol) {
-	case __constant_htons(ETH_P_IP):
-	case __constant_htons(ETH_P_IPX):
-	case __constant_htons(ETH_P_IPV6):
+	case cpu_to_be16(ETH_P_IP):
+	case cpu_to_be16(ETH_P_IPX):
+	case cpu_to_be16(ETH_P_IPV6):
 		skb_pull(skb, sizeof(struct hdlc_header));
 		return data->protocol;
 	default:
-		return __constant_htons(ETH_P_HDLC);
+		return cpu_to_be16(ETH_P_HDLC);
 	}
 }
 
@@ -194,7 +194,7 @@ static int cisco_rx(struct sk_buff *skb)
 		case CISCO_ADDR_REQ: /* Stolen from syncppp.c :-) */
 			in_dev = dev->ip_ptr;
 			addr = 0;
-			mask = __constant_htonl(~0); /* is the mask correct? */
+			mask = ~cpu_to_be32(0); /* is the mask correct? */
 
 			if (in_dev != NULL) {
 				struct in_ifaddr **ifap = &in_dev->ifa_list;
diff --git a/drivers/net/wan/hdlc_fr.c b/drivers/net/wan/hdlc_fr.c
index 70e57cebc95..80053010109 100644
--- a/drivers/net/wan/hdlc_fr.c
+++ b/drivers/net/wan/hdlc_fr.c
@@ -278,31 +278,31 @@ static int fr_hard_header(struct sk_buff **skb_p, u16 dlci)
 	struct sk_buff *skb = *skb_p;
 
 	switch (skb->protocol) {
-	case __constant_htons(NLPID_CCITT_ANSI_LMI):
+	case cpu_to_be16(NLPID_CCITT_ANSI_LMI):
 		head_len = 4;
 		skb_push(skb, head_len);
 		skb->data[3] = NLPID_CCITT_ANSI_LMI;
 		break;
 
-	case __constant_htons(NLPID_CISCO_LMI):
+	case cpu_to_be16(NLPID_CISCO_LMI):
 		head_len = 4;
 		skb_push(skb, head_len);
 		skb->data[3] = NLPID_CISCO_LMI;
 		break;
 
-	case __constant_htons(ETH_P_IP):
+	case cpu_to_be16(ETH_P_IP):
 		head_len = 4;
 		skb_push(skb, head_len);
 		skb->data[3] = NLPID_IP;
 		break;
 
-	case __constant_htons(ETH_P_IPV6):
+	case cpu_to_be16(ETH_P_IPV6):
 		head_len = 4;
 		skb_push(skb, head_len);
 		skb->data[3] = NLPID_IPV6;
 		break;
 
-	case __constant_htons(ETH_P_802_3):
+	case cpu_to_be16(ETH_P_802_3):
 		head_len = 10;
 		if (skb_headroom(skb) < head_len) {
 			struct sk_buff *skb2 = skb_realloc_headroom(skb,
@@ -426,7 +426,7 @@ static int pvc_xmit(struct sk_buff *skb, struct net_device *dev)
 				skb_put(skb, pad);
 				memset(skb->data + len, 0, pad);
 			}
-			skb->protocol = __constant_htons(ETH_P_802_3);
+			skb->protocol = cpu_to_be16(ETH_P_802_3);
 		}
 		if (!fr_hard_header(&skb, pvc->dlci)) {
 			dev->stats.tx_bytes += skb->len;
@@ -496,10 +496,10 @@ static void fr_lmi_send(struct net_device *dev, int fullrep)
 	memset(skb->data, 0, len);
 	skb_reserve(skb, 4);
 	if (lmi == LMI_CISCO) {
-		skb->protocol = __constant_htons(NLPID_CISCO_LMI);
+		skb->protocol = cpu_to_be16(NLPID_CISCO_LMI);
 		fr_hard_header(&skb, LMI_CISCO_DLCI);
 	} else {
-		skb->protocol = __constant_htons(NLPID_CCITT_ANSI_LMI);
+		skb->protocol = cpu_to_be16(NLPID_CCITT_ANSI_LMI);
 		fr_hard_header(&skb, LMI_CCITT_ANSI_DLCI);
 	}
 	data = skb_tail_pointer(skb);
diff --git a/drivers/net/wan/hdlc_ppp.c b/drivers/net/wan/hdlc_ppp.c
index 7b8a5eae201..72a7cdab424 100644
--- a/drivers/net/wan/hdlc_ppp.c
+++ b/drivers/net/wan/hdlc_ppp.c
@@ -150,11 +150,11 @@ static __be16 ppp_type_trans(struct sk_buff *skb, struct net_device *dev)
 		return htons(ETH_P_HDLC);
 
 	switch (data->protocol) {
-	case __constant_htons(PID_IP):
+	case cpu_to_be16(PID_IP):
 		skb_pull(skb, sizeof(struct hdlc_header));
 		return htons(ETH_P_IP);
 
-	case __constant_htons(PID_IPV6):
+	case cpu_to_be16(PID_IPV6):
 		skb_pull(skb, sizeof(struct hdlc_header));
 		return htons(ETH_P_IPV6);
 
diff --git a/drivers/net/wan/hdlc_raw.c b/drivers/net/wan/hdlc_raw.c
index 6e92c64ebd0..19f51fdd552 100644
--- a/drivers/net/wan/hdlc_raw.c
+++ b/drivers/net/wan/hdlc_raw.c
@@ -27,7 +27,7 @@ static int raw_ioctl(struct net_device *dev, struct ifreq *ifr);
 
 static __be16 raw_type_trans(struct sk_buff *skb, struct net_device *dev)
 {
-	return __constant_htons(ETH_P_IP);
+	return cpu_to_be16(ETH_P_IP);
 }
 
 static struct hdlc_proto proto = {
diff --git a/drivers/net/wan/lapbether.c b/drivers/net/wan/lapbether.c
index 5b61b3eef45..da9dcf59de2 100644
--- a/drivers/net/wan/lapbether.c
+++ b/drivers/net/wan/lapbether.c
@@ -422,7 +422,7 @@ static int lapbeth_device_event(struct notifier_block *this,
 /* ------------------------------------------------------------------------ */
 
 static struct packet_type lapbeth_packet_type = {
-	.type = __constant_htons(ETH_P_DEC),
+	.type = cpu_to_be16(ETH_P_DEC),
 	.func = lapbeth_rcv,
 };
 
diff --git a/net/802/psnap.c b/net/802/psnap.c
index 70980baeb68..6ed711748f2 100644
--- a/net/802/psnap.c
+++ b/net/802/psnap.c
@@ -51,7 +51,7 @@ static int snap_rcv(struct sk_buff *skb, struct net_device *dev,
 	int rc = 1;
 	struct datalink_proto *proto;
 	static struct packet_type snap_packet_type = {
-		.type = __constant_htons(ETH_P_SNAP),
+		.type = cpu_to_be16(ETH_P_SNAP),
 	};
 
 	if (unlikely(!pskb_may_pull(skb, 5)))
diff --git a/net/8021q/vlan.c b/net/8021q/vlan.c
index 41e8f65bd3f..4163ea65bf4 100644
--- a/net/8021q/vlan.c
+++ b/net/8021q/vlan.c
@@ -52,7 +52,7 @@ static const char vlan_copyright[] = "Ben Greear <greearb@candelatech.com>";
 static const char vlan_buggyright[] = "David S. Miller <davem@redhat.com>";
 
 static struct packet_type vlan_packet_type = {
-	.type = __constant_htons(ETH_P_8021Q),
+	.type = cpu_to_be16(ETH_P_8021Q),
 	.func = vlan_skb_recv, /* VLAN receive method */
 };
 
diff --git a/net/appletalk/ddp.c b/net/appletalk/ddp.c
index 5abce07fb50..510a6782da8 100644
--- a/net/appletalk/ddp.c
+++ b/net/appletalk/ddp.c
@@ -1861,12 +1861,12 @@ static struct notifier_block ddp_notifier = {
 };
 
 static struct packet_type ltalk_packet_type = {
-	.type		= __constant_htons(ETH_P_LOCALTALK),
+	.type		= cpu_to_be16(ETH_P_LOCALTALK),
 	.func		= ltalk_rcv,
 };
 
 static struct packet_type ppptalk_packet_type = {
-	.type		= __constant_htons(ETH_P_PPPTALK),
+	.type		= cpu_to_be16(ETH_P_PPPTALK),
 	.func		= atalk_rcv,
 };
 
diff --git a/net/ax25/af_ax25.c b/net/ax25/af_ax25.c
index 00d9e5e1315..d127fd3ba5c 100644
--- a/net/ax25/af_ax25.c
+++ b/net/ax25/af_ax25.c
@@ -1986,7 +1986,7 @@ static const struct proto_ops ax25_proto_ops = {
  *	Called by socket.c on kernel start up
  */
 static struct packet_type ax25_packet_type = {
-	.type	=	__constant_htons(ETH_P_AX25),
+	.type	=	cpu_to_be16(ETH_P_AX25),
 	.dev	=	NULL,				/* All devices */
 	.func	=	ax25_kiss_rcv,
 };
diff --git a/net/bridge/br_netfilter.c b/net/bridge/br_netfilter.c
index cf754ace0b7..3953ac4214c 100644
--- a/net/bridge/br_netfilter.c
+++ b/net/bridge/br_netfilter.c
@@ -107,7 +107,7 @@ static void fake_update_pmtu(struct dst_entry *dst, u32 mtu)
 
 static struct dst_ops fake_dst_ops = {
 	.family =		AF_INET,
-	.protocol =		__constant_htons(ETH_P_IP),
+	.protocol =		cpu_to_be16(ETH_P_IP),
 	.update_pmtu =		fake_update_pmtu,
 	.entries =		ATOMIC_INIT(0),
 };
diff --git a/net/can/af_can.c b/net/can/af_can.c
index fa417ca6cbe..d90e8dd975f 100644
--- a/net/can/af_can.c
+++ b/net/can/af_can.c
@@ -828,7 +828,7 @@ static int can_notifier(struct notifier_block *nb, unsigned long msg,
  */
 
 static struct packet_type can_packet __read_mostly = {
-	.type = __constant_htons(ETH_P_CAN),
+	.type = cpu_to_be16(ETH_P_CAN),
 	.dev  = NULL,
 	.func = can_rcv,
 };
diff --git a/net/decnet/af_decnet.c b/net/decnet/af_decnet.c
index cf0e1849929..12bf7d4c16c 100644
--- a/net/decnet/af_decnet.c
+++ b/net/decnet/af_decnet.c
@@ -2113,7 +2113,7 @@ static struct notifier_block dn_dev_notifier = {
 extern int dn_route_rcv(struct sk_buff *, struct net_device *, struct packet_type *, struct net_device *);
 
 static struct packet_type dn_dix_packet_type = {
-	.type =		__constant_htons(ETH_P_DNA_RT),
+	.type =		cpu_to_be16(ETH_P_DNA_RT),
 	.dev =		NULL,		/* All devices */
 	.func =		dn_route_rcv,
 };
diff --git a/net/decnet/dn_route.c b/net/decnet/dn_route.c
index c754670b7fc..5130dee0b38 100644
--- a/net/decnet/dn_route.c
+++ b/net/decnet/dn_route.c
@@ -124,7 +124,7 @@ int decnet_dst_gc_interval = 2;
 
 static struct dst_ops dn_dst_ops = {
 	.family =		PF_DECnet,
-	.protocol =		__constant_htons(ETH_P_DNA_RT),
+	.protocol =		cpu_to_be16(ETH_P_DNA_RT),
 	.gc_thresh =		128,
 	.gc =			dn_dst_gc,
 	.check =		dn_dst_check,
diff --git a/net/dsa/mv88e6123_61_65.c b/net/dsa/mv88e6123_61_65.c
index ec8c6a0482d..10031872221 100644
--- a/net/dsa/mv88e6123_61_65.c
+++ b/net/dsa/mv88e6123_61_65.c
@@ -394,7 +394,7 @@ static int mv88e6123_61_65_get_sset_count(struct dsa_switch *ds)
 }
 
 static struct dsa_switch_driver mv88e6123_61_65_switch_driver = {
-	.tag_protocol		= __constant_htons(ETH_P_EDSA),
+	.tag_protocol		= cpu_to_be16(ETH_P_EDSA),
 	.priv_size		= sizeof(struct mv88e6xxx_priv_state),
 	.probe			= mv88e6123_61_65_probe,
 	.setup			= mv88e6123_61_65_setup,
diff --git a/net/dsa/mv88e6131.c b/net/dsa/mv88e6131.c
index 374d46a0126..70fae2444cb 100644
--- a/net/dsa/mv88e6131.c
+++ b/net/dsa/mv88e6131.c
@@ -353,7 +353,7 @@ static int mv88e6131_get_sset_count(struct dsa_switch *ds)
 }
 
 static struct dsa_switch_driver mv88e6131_switch_driver = {
-	.tag_protocol		= __constant_htons(ETH_P_DSA),
+	.tag_protocol		= cpu_to_be16(ETH_P_DSA),
 	.priv_size		= sizeof(struct mv88e6xxx_priv_state),
 	.probe			= mv88e6131_probe,
 	.setup			= mv88e6131_setup,
diff --git a/net/dsa/tag_dsa.c b/net/dsa/tag_dsa.c
index f99a019b939..63e532a69fd 100644
--- a/net/dsa/tag_dsa.c
+++ b/net/dsa/tag_dsa.c
@@ -176,7 +176,7 @@ out:
 }
 
 static struct packet_type dsa_packet_type = {
-	.type	= __constant_htons(ETH_P_DSA),
+	.type	= cpu_to_be16(ETH_P_DSA),
 	.func	= dsa_rcv,
 };
 
diff --git a/net/dsa/tag_edsa.c b/net/dsa/tag_edsa.c
index 328ec957f78..6197f9a7ef4 100644
--- a/net/dsa/tag_edsa.c
+++ b/net/dsa/tag_edsa.c
@@ -195,7 +195,7 @@ out:
 }
 
 static struct packet_type edsa_packet_type = {
-	.type	= __constant_htons(ETH_P_EDSA),
+	.type	= cpu_to_be16(ETH_P_EDSA),
 	.func	= edsa_rcv,
 };
 
diff --git a/net/dsa/tag_trailer.c b/net/dsa/tag_trailer.c
index b59132878ad..d7e7f424ff0 100644
--- a/net/dsa/tag_trailer.c
+++ b/net/dsa/tag_trailer.c
@@ -112,7 +112,7 @@ out:
 }
 
 static struct packet_type trailer_packet_type = {
-	.type	= __constant_htons(ETH_P_TRAILER),
+	.type	= cpu_to_be16(ETH_P_TRAILER),
 	.func	= trailer_rcv,
 };
 
diff --git a/net/econet/af_econet.c b/net/econet/af_econet.c
index 8789d2bb1b0..7bf35582f65 100644
--- a/net/econet/af_econet.c
+++ b/net/econet/af_econet.c
@@ -1103,7 +1103,7 @@ drop:
 }
 
 static struct packet_type econet_packet_type = {
-	.type =		__constant_htons(ETH_P_ECONET),
+	.type =		cpu_to_be16(ETH_P_ECONET),
 	.func =		econet_rcv,
 };
 
diff --git a/net/ipv4/af_inet.c b/net/ipv4/af_inet.c
index d6770f295d5..957cd054732 100644
--- a/net/ipv4/af_inet.c
+++ b/net/ipv4/af_inet.c
@@ -1501,7 +1501,7 @@ static int ipv4_proc_init(void);
  */
 
 static struct packet_type ip_packet_type = {
-	.type = __constant_htons(ETH_P_IP),
+	.type = cpu_to_be16(ETH_P_IP),
 	.func = ip_rcv,
 	.gso_send_check = inet_gso_send_check,
 	.gso_segment = inet_gso_segment,
diff --git a/net/ipv4/arp.c b/net/ipv4/arp.c
index 29a74c01d8d..3f6b7354699 100644
--- a/net/ipv4/arp.c
+++ b/net/ipv4/arp.c
@@ -1226,7 +1226,7 @@ void arp_ifdown(struct net_device *dev)
  */
 
 static struct packet_type arp_packet_type = {
-	.type =	__constant_htons(ETH_P_ARP),
+	.type =	cpu_to_be16(ETH_P_ARP),
 	.func =	arp_rcv,
 };
 
diff --git a/net/ipv4/ipconfig.c b/net/ipv4/ipconfig.c
index d722013c1ca..90d22ae0a41 100644
--- a/net/ipv4/ipconfig.c
+++ b/net/ipv4/ipconfig.c
@@ -100,8 +100,8 @@
 #define CONF_NAMESERVERS_MAX   3       /* Maximum number of nameservers
 					   - '3' from resolv.h */
 
-#define NONE __constant_htonl(INADDR_NONE)
-#define ANY __constant_htonl(INADDR_ANY)
+#define NONE cpu_to_be32(INADDR_NONE)
+#define ANY cpu_to_be32(INADDR_ANY)
 
 /*
  * Public IP configuration
@@ -406,7 +406,7 @@ static int __init ic_defaults(void)
 static int ic_rarp_recv(struct sk_buff *skb, struct net_device *dev, struct packet_type *pt, struct net_device *orig_dev);
 
 static struct packet_type rarp_packet_type __initdata = {
-	.type =	__constant_htons(ETH_P_RARP),
+	.type =	cpu_to_be16(ETH_P_RARP),
 	.func =	ic_rarp_recv,
 };
 
@@ -568,7 +568,7 @@ struct bootp_pkt {		/* BOOTP packet format */
 static int ic_bootp_recv(struct sk_buff *skb, struct net_device *dev, struct packet_type *pt, struct net_device *orig_dev);
 
 static struct packet_type bootp_packet_type __initdata = {
-	.type =	__constant_htons(ETH_P_IP),
+	.type =	cpu_to_be16(ETH_P_IP),
 	.func =	ic_bootp_recv,
 };
 
diff --git a/net/ipv4/netfilter/nf_nat_snmp_basic.c b/net/ipv4/netfilter/nf_nat_snmp_basic.c
index 182f845de92..d9521f6f9ed 100644
--- a/net/ipv4/netfilter/nf_nat_snmp_basic.c
+++ b/net/ipv4/netfilter/nf_nat_snmp_basic.c
@@ -1292,7 +1292,7 @@ static struct nf_conntrack_helper snmp_helper __read_mostly = {
 	.expect_policy		= &snmp_exp_policy,
 	.name			= "snmp",
 	.tuple.src.l3num	= AF_INET,
-	.tuple.src.u.udp.port	= __constant_htons(SNMP_PORT),
+	.tuple.src.u.udp.port	= cpu_to_be16(SNMP_PORT),
 	.tuple.dst.protonum	= IPPROTO_UDP,
 };
 
@@ -1302,7 +1302,7 @@ static struct nf_conntrack_helper snmp_trap_helper __read_mostly = {
 	.expect_policy		= &snmp_exp_policy,
 	.name			= "snmp_trap",
 	.tuple.src.l3num	= AF_INET,
-	.tuple.src.u.udp.port	= __constant_htons(SNMP_TRAP_PORT),
+	.tuple.src.u.udp.port	= cpu_to_be16(SNMP_TRAP_PORT),
 	.tuple.dst.protonum	= IPPROTO_UDP,
 };
 
diff --git a/net/ipv4/route.c b/net/ipv4/route.c
index 6a9e204c802..5caee609be0 100644
--- a/net/ipv4/route.c
+++ b/net/ipv4/route.c
@@ -151,7 +151,7 @@ static void rt_emergency_hash_rebuild(struct net *net);
 
 static struct dst_ops ipv4_dst_ops = {
 	.family =		AF_INET,
-	.protocol =		__constant_htons(ETH_P_IP),
+	.protocol =		cpu_to_be16(ETH_P_IP),
 	.gc =			rt_garbage_collect,
 	.check =		ipv4_dst_check,
 	.destroy =		ipv4_dst_destroy,
@@ -2696,7 +2696,7 @@ static void ipv4_rt_blackhole_update_pmtu(struct dst_entry *dst, u32 mtu)
 
 static struct dst_ops ipv4_dst_blackhole_ops = {
 	.family			=	AF_INET,
-	.protocol		=	__constant_htons(ETH_P_IP),
+	.protocol		=	cpu_to_be16(ETH_P_IP),
 	.destroy		=	ipv4_dst_destroy,
 	.check			=	ipv4_dst_check,
 	.update_pmtu		=	ipv4_rt_blackhole_update_pmtu,
diff --git a/net/ipv4/xfrm4_policy.c b/net/ipv4/xfrm4_policy.c
index 2ad24ba31f9..60d918c96a4 100644
--- a/net/ipv4/xfrm4_policy.c
+++ b/net/ipv4/xfrm4_policy.c
@@ -241,7 +241,7 @@ static void xfrm4_dst_ifdown(struct dst_entry *dst, struct net_device *dev,
 
 static struct dst_ops xfrm4_dst_ops = {
 	.family =		AF_INET,
-	.protocol =		__constant_htons(ETH_P_IP),
+	.protocol =		cpu_to_be16(ETH_P_IP),
 	.gc =			xfrm4_garbage_collect,
 	.update_pmtu =		xfrm4_update_pmtu,
 	.destroy =		xfrm4_dst_destroy,
diff --git a/net/ipv6/af_inet6.c b/net/ipv6/af_inet6.c
index bd91eadcbe3..fa2ac7ee662 100644
--- a/net/ipv6/af_inet6.c
+++ b/net/ipv6/af_inet6.c
@@ -890,7 +890,7 @@ out_unlock:
 }
 
 static struct packet_type ipv6_packet_type = {
-	.type = __constant_htons(ETH_P_IPV6),
+	.type = cpu_to_be16(ETH_P_IPV6),
 	.func = ipv6_rcv,
 	.gso_send_check = ipv6_gso_send_check,
 	.gso_segment = ipv6_gso_segment,
diff --git a/net/ipv6/route.c b/net/ipv6/route.c
index 9c574235c90..c3d486a3eda 100644
--- a/net/ipv6/route.c
+++ b/net/ipv6/route.c
@@ -98,7 +98,7 @@ static struct rt6_info *rt6_get_route_info(struct net *net,
 
 static struct dst_ops ip6_dst_ops_template = {
 	.family			=	AF_INET6,
-	.protocol		=	__constant_htons(ETH_P_IPV6),
+	.protocol		=	cpu_to_be16(ETH_P_IPV6),
 	.gc			=	ip6_dst_gc,
 	.gc_thresh		=	1024,
 	.check			=	ip6_dst_check,
@@ -117,7 +117,7 @@ static void ip6_rt_blackhole_update_pmtu(struct dst_entry *dst, u32 mtu)
 
 static struct dst_ops ip6_dst_blackhole_ops = {
 	.family			=	AF_INET6,
-	.protocol		=	__constant_htons(ETH_P_IPV6),
+	.protocol		=	cpu_to_be16(ETH_P_IPV6),
 	.destroy		=	ip6_dst_destroy,
 	.check			=	ip6_dst_check,
 	.update_pmtu		=	ip6_rt_blackhole_update_pmtu,
diff --git a/net/ipv6/xfrm6_policy.c b/net/ipv6/xfrm6_policy.c
index 97ab068e8cc..b4b16a43f27 100644
--- a/net/ipv6/xfrm6_policy.c
+++ b/net/ipv6/xfrm6_policy.c
@@ -272,7 +272,7 @@ static void xfrm6_dst_ifdown(struct dst_entry *dst, struct net_device *dev,
 
 static struct dst_ops xfrm6_dst_ops = {
 	.family =		AF_INET6,
-	.protocol =		__constant_htons(ETH_P_IPV6),
+	.protocol =		cpu_to_be16(ETH_P_IPV6),
 	.gc =			xfrm6_garbage_collect,
 	.update_pmtu =		xfrm6_update_pmtu,
 	.destroy =		xfrm6_dst_destroy,
diff --git a/net/ipx/af_ipx.c b/net/ipx/af_ipx.c
index b6e70f92e7f..43d0ffc6d56 100644
--- a/net/ipx/af_ipx.c
+++ b/net/ipx/af_ipx.c
@@ -1959,12 +1959,12 @@ static const struct proto_ops SOCKOPS_WRAPPED(ipx_dgram_ops) = {
 SOCKOPS_WRAP(ipx_dgram, PF_IPX);
 
 static struct packet_type ipx_8023_packet_type = {
-	.type		= __constant_htons(ETH_P_802_3),
+	.type		= cpu_to_be16(ETH_P_802_3),
 	.func		= ipx_rcv,
 };
 
 static struct packet_type ipx_dix_packet_type = {
-	.type		= __constant_htons(ETH_P_IPX),
+	.type		= cpu_to_be16(ETH_P_IPX),
 	.func		= ipx_rcv,
 };
 
diff --git a/net/irda/irmod.c b/net/irda/irmod.c
index 4c487a88372..1bb607f2f5c 100644
--- a/net/irda/irmod.c
+++ b/net/irda/irmod.c
@@ -56,7 +56,7 @@ EXPORT_SYMBOL(irda_debug);
  * Tell the kernel how IrDA packets should be handled.
  */
 static struct packet_type irda_packet_type = {
-	.type	= __constant_htons(ETH_P_IRDA),
+	.type	= cpu_to_be16(ETH_P_IRDA),
 	.func	= irlap_driver_rcv,	/* Packet type handler irlap_frame.c */
 };
 
diff --git a/net/llc/llc_core.c b/net/llc/llc_core.c
index 50d5b10e23a..a7fe1adc378 100644
--- a/net/llc/llc_core.c
+++ b/net/llc/llc_core.c
@@ -148,12 +148,12 @@ void llc_sap_close(struct llc_sap *sap)
 }
 
 static struct packet_type llc_packet_type = {
-	.type = __constant_htons(ETH_P_802_2),
+	.type = cpu_to_be16(ETH_P_802_2),
 	.func = llc_rcv,
 };
 
 static struct packet_type llc_tr_packet_type = {
-	.type = __constant_htons(ETH_P_TR_802_2),
+	.type = cpu_to_be16(ETH_P_TR_802_2),
 	.func = llc_rcv,
 };
 
diff --git a/net/netfilter/ipvs/ip_vs_sync.c b/net/netfilter/ipvs/ip_vs_sync.c
index 6be5d4efa51..5c48378a852 100644
--- a/net/netfilter/ipvs/ip_vs_sync.c
+++ b/net/netfilter/ipvs/ip_vs_sync.c
@@ -149,8 +149,8 @@ static struct task_struct *sync_backup_thread;
 /* multicast addr */
 static struct sockaddr_in mcast_addr = {
 	.sin_family		= AF_INET,
-	.sin_port		= __constant_htons(IP_VS_SYNC_PORT),
-	.sin_addr.s_addr	= __constant_htonl(IP_VS_SYNC_GROUP),
+	.sin_port		= cpu_to_be16(IP_VS_SYNC_PORT),
+	.sin_addr.s_addr	= cpu_to_be32(IP_VS_SYNC_GROUP),
 };
 
 
diff --git a/net/netfilter/nf_conntrack_amanda.c b/net/netfilter/nf_conntrack_amanda.c
index 4f8fcf49854..07d9d8857e5 100644
--- a/net/netfilter/nf_conntrack_amanda.c
+++ b/net/netfilter/nf_conntrack_amanda.c
@@ -177,7 +177,7 @@ static struct nf_conntrack_helper amanda_helper[2] __read_mostly = {
 		.me			= THIS_MODULE,
 		.help			= amanda_help,
 		.tuple.src.l3num	= AF_INET,
-		.tuple.src.u.udp.port	= __constant_htons(10080),
+		.tuple.src.u.udp.port	= cpu_to_be16(10080),
 		.tuple.dst.protonum	= IPPROTO_UDP,
 		.expect_policy		= &amanda_exp_policy,
 	},
@@ -186,7 +186,7 @@ static struct nf_conntrack_helper amanda_helper[2] __read_mostly = {
 		.me			= THIS_MODULE,
 		.help			= amanda_help,
 		.tuple.src.l3num	= AF_INET6,
-		.tuple.src.u.udp.port	= __constant_htons(10080),
+		.tuple.src.u.udp.port	= cpu_to_be16(10080),
 		.tuple.dst.protonum	= IPPROTO_UDP,
 		.expect_policy		= &amanda_exp_policy,
 	},
diff --git a/net/netfilter/nf_conntrack_h323_main.c b/net/netfilter/nf_conntrack_h323_main.c
index 687bd633c3d..66369490230 100644
--- a/net/netfilter/nf_conntrack_h323_main.c
+++ b/net/netfilter/nf_conntrack_h323_main.c
@@ -1167,7 +1167,7 @@ static struct nf_conntrack_helper nf_conntrack_helper_q931[] __read_mostly = {
 		.name			= "Q.931",
 		.me			= THIS_MODULE,
 		.tuple.src.l3num	= AF_INET,
-		.tuple.src.u.tcp.port	= __constant_htons(Q931_PORT),
+		.tuple.src.u.tcp.port	= cpu_to_be16(Q931_PORT),
 		.tuple.dst.protonum	= IPPROTO_TCP,
 		.help			= q931_help,
 		.expect_policy		= &q931_exp_policy,
@@ -1176,7 +1176,7 @@ static struct nf_conntrack_helper nf_conntrack_helper_q931[] __read_mostly = {
 		.name			= "Q.931",
 		.me			= THIS_MODULE,
 		.tuple.src.l3num	= AF_INET6,
-		.tuple.src.u.tcp.port	= __constant_htons(Q931_PORT),
+		.tuple.src.u.tcp.port	= cpu_to_be16(Q931_PORT),
 		.tuple.dst.protonum	= IPPROTO_TCP,
 		.help			= q931_help,
 		.expect_policy		= &q931_exp_policy,
@@ -1741,7 +1741,7 @@ static struct nf_conntrack_helper nf_conntrack_helper_ras[] __read_mostly = {
 		.name			= "RAS",
 		.me			= THIS_MODULE,
 		.tuple.src.l3num	= AF_INET,
-		.tuple.src.u.udp.port	= __constant_htons(RAS_PORT),
+		.tuple.src.u.udp.port	= cpu_to_be16(RAS_PORT),
 		.tuple.dst.protonum	= IPPROTO_UDP,
 		.help			= ras_help,
 		.expect_policy		= &ras_exp_policy,
@@ -1750,7 +1750,7 @@ static struct nf_conntrack_helper nf_conntrack_helper_ras[] __read_mostly = {
 		.name			= "RAS",
 		.me			= THIS_MODULE,
 		.tuple.src.l3num	= AF_INET6,
-		.tuple.src.u.udp.port	= __constant_htons(RAS_PORT),
+		.tuple.src.u.udp.port	= cpu_to_be16(RAS_PORT),
 		.tuple.dst.protonum	= IPPROTO_UDP,
 		.help			= ras_help,
 		.expect_policy		= &ras_exp_policy,
diff --git a/net/netfilter/nf_conntrack_netbios_ns.c b/net/netfilter/nf_conntrack_netbios_ns.c
index 5af4273b466..8a3875e36ec 100644
--- a/net/netfilter/nf_conntrack_netbios_ns.c
+++ b/net/netfilter/nf_conntrack_netbios_ns.c
@@ -105,7 +105,7 @@ static struct nf_conntrack_expect_policy exp_policy = {
 static struct nf_conntrack_helper helper __read_mostly = {
 	.name			= "netbios-ns",
 	.tuple.src.l3num	= AF_INET,
-	.tuple.src.u.udp.port	= __constant_htons(NMBD_PORT),
+	.tuple.src.u.udp.port	= cpu_to_be16(NMBD_PORT),
 	.tuple.dst.protonum	= IPPROTO_UDP,
 	.me			= THIS_MODULE,
 	.help			= help,
diff --git a/net/netfilter/nf_conntrack_pptp.c b/net/netfilter/nf_conntrack_pptp.c
index 9e169ef2e85..72cca638a82 100644
--- a/net/netfilter/nf_conntrack_pptp.c
+++ b/net/netfilter/nf_conntrack_pptp.c
@@ -591,7 +591,7 @@ static struct nf_conntrack_helper pptp __read_mostly = {
 	.name			= "pptp",
 	.me			= THIS_MODULE,
 	.tuple.src.l3num	= AF_INET,
-	.tuple.src.u.tcp.port	= __constant_htons(PPTP_CONTROL_PORT),
+	.tuple.src.u.tcp.port	= cpu_to_be16(PPTP_CONTROL_PORT),
 	.tuple.dst.protonum	= IPPROTO_TCP,
 	.help			= conntrack_pptp_help,
 	.destroy		= pptp_destroy_siblings,
diff --git a/net/phonet/af_phonet.c b/net/phonet/af_phonet.c
index 95bc49ddb8b..81795ea8779 100644
--- a/net/phonet/af_phonet.c
+++ b/net/phonet/af_phonet.c
@@ -383,7 +383,7 @@ out:
 }
 
 static struct packet_type phonet_packet_type = {
-	.type = __constant_htons(ETH_P_PHONET),
+	.type = cpu_to_be16(ETH_P_PHONET),
 	.dev = NULL,
 	.func = phonet_rcv,
 };
diff --git a/net/sctp/output.c b/net/sctp/output.c
index 73639355157..47bfba6c03e 100644
--- a/net/sctp/output.c
+++ b/net/sctp/output.c
@@ -367,7 +367,7 @@ int sctp_packet_transmit(struct sctp_packet *packet)
 	struct sctp_transport *tp = packet->transport;
 	struct sctp_association *asoc = tp->asoc;
 	struct sctphdr *sh;
-	__be32 crc32 = __constant_cpu_to_be32(0);
+	__be32 crc32 = cpu_to_be32(0);
 	struct sk_buff *nskb;
 	struct sctp_chunk *chunk, *tmp;
 	struct sock *sk;
diff --git a/net/sctp/sm_make_chunk.c b/net/sctp/sm_make_chunk.c
index fd8acb48c3f..b40e95f9851 100644
--- a/net/sctp/sm_make_chunk.c
+++ b/net/sctp/sm_make_chunk.c
@@ -100,11 +100,11 @@ int sctp_chunk_iif(const struct sctp_chunk *chunk)
  */
 static const struct sctp_paramhdr ecap_param = {
 	SCTP_PARAM_ECN_CAPABLE,
-	__constant_htons(sizeof(struct sctp_paramhdr)),
+	cpu_to_be16(sizeof(struct sctp_paramhdr)),
 };
 static const struct sctp_paramhdr prsctp_param = {
 	SCTP_PARAM_FWD_TSN_SUPPORT,
-	__constant_htons(sizeof(struct sctp_paramhdr)),
+	cpu_to_be16(sizeof(struct sctp_paramhdr)),
 };
 
 /* A helper to initialize to initialize an op error inside a
diff --git a/net/x25/af_x25.c b/net/x25/af_x25.c
index 9fc5b023d11..8f76f4009c2 100644
--- a/net/x25/af_x25.c
+++ b/net/x25/af_x25.c
@@ -1609,7 +1609,7 @@ static const struct proto_ops SOCKOPS_WRAPPED(x25_proto_ops) = {
 SOCKOPS_WRAP(x25_proto, AF_X25);
 
 static struct packet_type x25_packet_type = {
-	.type =	__constant_htons(ETH_P_X25),
+	.type =	cpu_to_be16(ETH_P_X25),
 	.func =	x25_lapb_receive_frame,
 };
 
-- 
cgit v1.2.3-70-g09d2


From 69d3ca5357bb93bb3a139c5d90077407f8828bd1 Mon Sep 17 00:00:00 2001
From: Alexander Duyck <alexander.h.duyck@intel.com>
Date: Fri, 6 Feb 2009 23:15:04 +0000
Subject: igb: optimize/refactor receive path

While cleaning up the skb_over panic with small frames I found there was
room for improvement in the ordering of operations within the rx receive
flow.  These changes will place the prefetch for the next descriptor to a
point earlier in the rx path.

Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 drivers/net/igb/igb_main.c | 44 ++++++++++++++++++++++----------------------
 1 file changed, 22 insertions(+), 22 deletions(-)

(limited to 'drivers/net/igb')

diff --git a/drivers/net/igb/igb_main.c b/drivers/net/igb/igb_main.c
index 8b80fe34343..21f0c229b64 100644
--- a/drivers/net/igb/igb_main.c
+++ b/drivers/net/igb/igb_main.c
@@ -3803,6 +3803,7 @@ static bool igb_clean_rx_irq_adv(struct igb_ring *rx_ring,
 	unsigned int total_bytes = 0, total_packets = 0;
 
 	i = rx_ring->next_to_clean;
+	buffer_info = &rx_ring->buffer_info[i];
 	rx_desc = E1000_RX_DESC_ADV(*rx_ring, i);
 	staterr = le32_to_cpu(rx_desc->wb.upper.status_error);
 
@@ -3810,25 +3811,22 @@ static bool igb_clean_rx_irq_adv(struct igb_ring *rx_ring,
 		if (*work_done >= budget)
 			break;
 		(*work_done)++;
-		buffer_info = &rx_ring->buffer_info[i];
 
-		/* HW will not DMA in data larger than the given buffer, even
-		 * if it parses the (NFS, of course) header to be larger.  In
-		 * that case, it fills the header buffer and spills the rest
-		 * into the page.
-		 */
-		hlen = (le16_to_cpu(rx_desc->wb.lower.lo_dword.hdr_info) &
-		  E1000_RXDADV_HDRBUFLEN_MASK) >> E1000_RXDADV_HDRBUFLEN_SHIFT;
-		if (hlen > adapter->rx_ps_hdr_size)
-			hlen = adapter->rx_ps_hdr_size;
+		skb = buffer_info->skb;
+		prefetch(skb->data - NET_IP_ALIGN);
+		buffer_info->skb = NULL;
+
+		i++;
+		if (i == rx_ring->count)
+			i = 0;
+		next_rxd = E1000_RX_DESC_ADV(*rx_ring, i);
+		prefetch(next_rxd);
+		next_buffer = &rx_ring->buffer_info[i];
 
 		length = le16_to_cpu(rx_desc->wb.upper.length);
 		cleaned = true;
 		cleaned_count++;
 
-		skb = buffer_info->skb;
-		prefetch(skb->data - NET_IP_ALIGN);
-		buffer_info->skb = NULL;
 		if (!adapter->rx_ps_hdr_size) {
 			pci_unmap_single(pdev, buffer_info->dma,
 					 adapter->rx_buffer_len +
@@ -3838,6 +3836,16 @@ static bool igb_clean_rx_irq_adv(struct igb_ring *rx_ring,
 			goto send_up;
 		}
 
+		/* HW will not DMA in data larger than the given buffer, even
+		 * if it parses the (NFS, of course) header to be larger.  In
+		 * that case, it fills the header buffer and spills the rest
+		 * into the page.
+		 */
+		hlen = (le16_to_cpu(rx_desc->wb.lower.lo_dword.hdr_info) &
+		  E1000_RXDADV_HDRBUFLEN_MASK) >> E1000_RXDADV_HDRBUFLEN_SHIFT;
+		if (hlen > adapter->rx_ps_hdr_size)
+			hlen = adapter->rx_ps_hdr_size;
+
 		if (!skb_shinfo(skb)->nr_frags) {
 			pci_unmap_single(pdev, buffer_info->dma,
 					 adapter->rx_ps_hdr_size +
@@ -3867,13 +3875,6 @@ static bool igb_clean_rx_irq_adv(struct igb_ring *rx_ring,
 
 			skb->truesize += length;
 		}
-send_up:
-		i++;
-		if (i == rx_ring->count)
-			i = 0;
-		next_rxd = E1000_RX_DESC_ADV(*rx_ring, i);
-		prefetch(next_rxd);
-		next_buffer = &rx_ring->buffer_info[i];
 
 		if (!(staterr & E1000_RXD_STAT_EOP)) {
 			buffer_info->skb = next_buffer->skb;
@@ -3882,7 +3883,7 @@ send_up:
 			next_buffer->dma = 0;
 			goto next_desc;
 		}
-
+send_up:
 		if (staterr & E1000_RXDEXT_ERR_FRAME_ERR_MASK) {
 			dev_kfree_skb_irq(skb);
 			goto next_desc;
@@ -3909,7 +3910,6 @@ next_desc:
 		/* use prefetched values */
 		rx_desc = next_rxd;
 		buffer_info = next_buffer;
-
 		staterr = le32_to_cpu(rx_desc->wb.upper.status_error);
 	}
 
-- 
cgit v1.2.3-70-g09d2


From db76176215ec5af7a67386e0eacb5ea53e040f10 Mon Sep 17 00:00:00 2001
From: Alexander Duyck <alexander.h.duyck@intel.com>
Date: Fri, 6 Feb 2009 23:15:25 +0000
Subject: igb: move setting of buffsz out of repeated path in alloc_rx_buffers

buffsz is being repeatedly set when allocaing buffers.  Since this value
should only need to be set once in the function I am moving it out of the
looped portion of the path.

Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 drivers/net/igb/igb_main.c | 19 ++++++++-----------
 1 file changed, 8 insertions(+), 11 deletions(-)

(limited to 'drivers/net/igb')

diff --git a/drivers/net/igb/igb_main.c b/drivers/net/igb/igb_main.c
index 21f0c229b64..ec5855a10ff 100644
--- a/drivers/net/igb/igb_main.c
+++ b/drivers/net/igb/igb_main.c
@@ -3943,10 +3943,17 @@ static void igb_alloc_rx_buffers_adv(struct igb_ring *rx_ring,
 	struct igb_buffer *buffer_info;
 	struct sk_buff *skb;
 	unsigned int i;
+	int bufsz;
 
 	i = rx_ring->next_to_use;
 	buffer_info = &rx_ring->buffer_info[i];
 
+	if (adapter->rx_ps_hdr_size)
+		bufsz = adapter->rx_ps_hdr_size;
+	else
+		bufsz = adapter->rx_buffer_len;
+	bufsz += NET_IP_ALIGN;
+
 	while (cleaned_count--) {
 		rx_desc = E1000_RX_DESC_ADV(*rx_ring, i);
 
@@ -3962,23 +3969,14 @@ static void igb_alloc_rx_buffers_adv(struct igb_ring *rx_ring,
 				buffer_info->page_offset ^= PAGE_SIZE / 2;
 			}
 			buffer_info->page_dma =
-				pci_map_page(pdev,
-					     buffer_info->page,
+				pci_map_page(pdev, buffer_info->page,
 					     buffer_info->page_offset,
 					     PAGE_SIZE / 2,
 					     PCI_DMA_FROMDEVICE);
 		}
 
 		if (!buffer_info->skb) {
-			int bufsz;
-
-			if (adapter->rx_ps_hdr_size)
-				bufsz = adapter->rx_ps_hdr_size;
-			else
-				bufsz = adapter->rx_buffer_len;
-			bufsz += NET_IP_ALIGN;
 			skb = netdev_alloc_skb(netdev, bufsz);
-
 			if (!skb) {
 				adapter->alloc_rx_buff_failed++;
 				goto no_buffers;
@@ -3994,7 +3992,6 @@ static void igb_alloc_rx_buffers_adv(struct igb_ring *rx_ring,
 			buffer_info->dma = pci_map_single(pdev, skb->data,
 							  bufsz,
 							  PCI_DMA_FROMDEVICE);
-
 		}
 		/* Refresh the desc even if buffer_addrs didn't change because
 		 * each write-back erases this info. */
-- 
cgit v1.2.3-70-g09d2


From 83b7180d0da2a8ff92baa6a35f6871aeb74d9bec Mon Sep 17 00:00:00 2001
From: Alexander Duyck <alexander.h.duyck@intel.com>
Date: Fri, 6 Feb 2009 23:15:45 +0000
Subject: igb: move initialization of number of queues into
 set_interrupt_capability

This patch moves the initialization of the number of queues into
set_interrupt_capability.  This allows the number of queues to increase in
the unlikely event that the system initially fails to allocate enough msi-x
interrupts, does a suspend/resume, and then can allocate enough interrupts
on resume.

Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 drivers/net/igb/igb_main.c | 10 +++++-----
 1 file changed, 5 insertions(+), 5 deletions(-)

(limited to 'drivers/net/igb')

diff --git a/drivers/net/igb/igb_main.c b/drivers/net/igb/igb_main.c
index ec5855a10ff..6ef0adb7a06 100644
--- a/drivers/net/igb/igb_main.c
+++ b/drivers/net/igb/igb_main.c
@@ -543,6 +543,11 @@ static void igb_set_interrupt_capability(struct igb_adapter *adapter)
 	int err;
 	int numvecs, i;
 
+	/* Number of supported queues. */
+	/* Having more queues than CPUs doesn't make sense. */
+	adapter->num_rx_queues = min_t(u32, IGB_MAX_RX_QUEUES, num_online_cpus());
+	adapter->num_tx_queues = min_t(u32, IGB_MAX_TX_QUEUES, num_online_cpus());
+
 	numvecs = adapter->num_tx_queues + adapter->num_rx_queues + 1;
 	adapter->msix_entries = kcalloc(numvecs, sizeof(struct msix_entry),
 					GFP_KERNEL);
@@ -1450,11 +1455,6 @@ static int __devinit igb_sw_init(struct igb_adapter *adapter)
 	adapter->max_frame_size = netdev->mtu + ETH_HLEN + ETH_FCS_LEN;
 	adapter->min_frame_size = ETH_ZLEN + ETH_FCS_LEN;
 
-	/* Number of supported queues. */
-	/* Having more queues than CPUs doesn't make sense. */
-	adapter->num_rx_queues = min_t(u32, IGB_MAX_RX_QUEUES, num_online_cpus());
-	adapter->num_tx_queues = min_t(u32, IGB_MAX_TX_QUEUES, num_online_cpus());
-
 	/* This call may decrease the number of queues depending on
 	 * interrupt mode. */
 	igb_set_interrupt_capability(adapter);
-- 
cgit v1.2.3-70-g09d2


From aed5dec370e294233d647251ce1e5f74d70b09c9 Mon Sep 17 00:00:00 2001
From: Alexander Duyck <alexander.h.duyck@intel.com>
Date: Fri, 6 Feb 2009 23:16:04 +0000
Subject: igb: remove check for needing an io port

Since igb supports only pci-e nics and there is no plan to support any
legacy pci parts in the driver there isn't really much need for checking to
see if an io port is needed.

In the unlikely event that we do begin supporting legacy pci parts then we
can see about adding this code back to the driver.

Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 drivers/net/igb/igb.h      |  4 ----
 drivers/net/igb/igb_main.c | 50 ++++++++++------------------------------------
 2 files changed, 10 insertions(+), 44 deletions(-)

(limited to 'drivers/net/igb')

diff --git a/drivers/net/igb/igb.h b/drivers/net/igb/igb.h
index 30657ddf484..530d7aa4cb8 100644
--- a/drivers/net/igb/igb.h
+++ b/drivers/net/igb/igb.h
@@ -273,10 +273,6 @@ struct igb_adapter {
 	unsigned int flags;
 	u32 eeprom_wol;
 
-	/* for ioport free */
-	int bars;
-	int need_ioport;
-
 	struct igb_ring *multi_tx_table[IGB_MAX_TX_QUEUES];
 	unsigned int tx_ring_count;
 	unsigned int rx_ring_count;
diff --git a/drivers/net/igb/igb_main.c b/drivers/net/igb/igb_main.c
index 6ef0adb7a06..13b10ba8a3c 100644
--- a/drivers/net/igb/igb_main.c
+++ b/drivers/net/igb/igb_main.c
@@ -974,21 +974,6 @@ void igb_reset(struct igb_adapter *adapter)
 	igb_get_phy_info(&adapter->hw);
 }
 
-/**
- * igb_is_need_ioport - determine if an adapter needs ioport resources or not
- * @pdev: PCI device information struct
- *
- * Returns true if an adapter needs ioport resources
- **/
-static int igb_is_need_ioport(struct pci_dev *pdev)
-{
-	switch (pdev->device) {
-	/* Currently there are no adapters that need ioport resources */
-	default:
-		return false;
-	}
-}
-
 static const struct net_device_ops igb_netdev_ops = {
 	.ndo_open 		= igb_open,
 	.ndo_stop		= igb_close,
@@ -1032,17 +1017,8 @@ static int __devinit igb_probe(struct pci_dev *pdev,
 	u16 eeprom_data = 0, state = 0;
 	u16 eeprom_apme_mask = IGB_EEPROM_APME;
 	u32 part_num;
-	int bars, need_ioport;
 
-	/* do not allocate ioport bars when not needed */
-	need_ioport = igb_is_need_ioport(pdev);
-	if (need_ioport) {
-		bars = pci_select_bars(pdev, IORESOURCE_MEM | IORESOURCE_IO);
-		err = pci_enable_device(pdev);
-	} else {
-		bars = pci_select_bars(pdev, IORESOURCE_MEM);
-		err = pci_enable_device_mem(pdev);
-	}
+	err = pci_enable_device_mem(pdev);
 	if (err)
 		return err;
 
@@ -1085,7 +1061,9 @@ static int __devinit igb_probe(struct pci_dev *pdev,
 		break;
 	}
 
-	err = pci_request_selected_regions(pdev, bars, igb_driver_name);
+	err = pci_request_selected_regions(pdev, pci_select_bars(pdev,
+	                                   IORESOURCE_MEM),
+	                                   igb_driver_name);
 	if (err)
 		goto err_pci_reg;
 
@@ -1113,8 +1091,6 @@ static int __devinit igb_probe(struct pci_dev *pdev,
 	hw = &adapter->hw;
 	hw->back = adapter;
 	adapter->msg_enable = NETIF_MSG_DRV | NETIF_MSG_PROBE;
-	adapter->bars = bars;
-	adapter->need_ioport = need_ioport;
 
 	mmio_start = pci_resource_start(pdev, 0);
 	mmio_len = pci_resource_len(pdev, 0);
@@ -1361,7 +1337,8 @@ err_hw_init:
 err_ioremap:
 	free_netdev(netdev);
 err_alloc_etherdev:
-	pci_release_selected_regions(pdev, bars);
+	pci_release_selected_regions(pdev, pci_select_bars(pdev,
+	                             IORESOURCE_MEM));
 err_pci_reg:
 err_dma:
 	pci_disable_device(pdev);
@@ -1420,7 +1397,8 @@ static void __devexit igb_remove(struct pci_dev *pdev)
 	iounmap(adapter->hw.hw_addr);
 	if (adapter->hw.flash_address)
 		iounmap(adapter->hw.flash_address);
-	pci_release_selected_regions(pdev, adapter->bars);
+	pci_release_selected_regions(pdev, pci_select_bars(pdev,
+	                             IORESOURCE_MEM));
 
 	free_netdev(netdev);
 
@@ -4309,10 +4287,7 @@ static int igb_resume(struct pci_dev *pdev)
 	pci_set_power_state(pdev, PCI_D0);
 	pci_restore_state(pdev);
 
-	if (adapter->need_ioport)
-		err = pci_enable_device(pdev);
-	else
-		err = pci_enable_device_mem(pdev);
+	err = pci_enable_device_mem(pdev);
 	if (err) {
 		dev_err(&pdev->dev,
 			"igb: Cannot enable PCI device from suspend\n");
@@ -4423,12 +4398,7 @@ static pci_ers_result_t igb_io_slot_reset(struct pci_dev *pdev)
 	pci_ers_result_t result;
 	int err;
 
-	if (adapter->need_ioport)
-		err = pci_enable_device(pdev);
-	else
-		err = pci_enable_device_mem(pdev);
-
-	if (err) {
+	if (pci_enable_device_mem(pdev)) {
 		dev_err(&pdev->dev,
 			"Cannot re-enable PCI device after reset.\n");
 		result = PCI_ERS_RESULT_DISCONNECT;
-- 
cgit v1.2.3-70-g09d2


From 4d6b725e4d8e499fad012a25381c8d9bf53fbf4b Mon Sep 17 00:00:00 2001
From: Alexander Duyck <alexander.h.duyck@intel.com>
Date: Fri, 6 Feb 2009 23:16:24 +0000
Subject: igb: add link check function

Add a link check function to contain all activities related to verifying
that the link is present.  The current approach is a bit cludgy and needs
to be cleaned up.

Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 drivers/net/igb/igb_main.c | 59 +++++++++++++++++++++++++++++++++-------------
 1 file changed, 42 insertions(+), 17 deletions(-)

(limited to 'drivers/net/igb')

diff --git a/drivers/net/igb/igb_main.c b/drivers/net/igb/igb_main.c
index 13b10ba8a3c..b59088eace1 100644
--- a/drivers/net/igb/igb_main.c
+++ b/drivers/net/igb/igb_main.c
@@ -2260,6 +2260,46 @@ static void igb_update_phy_info(unsigned long data)
 	igb_get_phy_info(&adapter->hw);
 }
 
+/**
+ * igb_has_link - check shared code for link and determine up/down
+ * @adapter: pointer to driver private info
+ **/
+static bool igb_has_link(struct igb_adapter *adapter)
+{
+	struct e1000_hw *hw = &adapter->hw;
+	bool link_active = false;
+	s32 ret_val = 0;
+
+	/* get_link_status is set on LSC (link status) interrupt or
+	 * rx sequence error interrupt.  get_link_status will stay
+	 * false until the e1000_check_for_link establishes link
+	 * for copper adapters ONLY
+	 */
+	switch (hw->phy.media_type) {
+	case e1000_media_type_copper:
+		if (hw->mac.get_link_status) {
+			ret_val = hw->mac.ops.check_for_link(hw);
+			link_active = !hw->mac.get_link_status;
+		} else {
+			link_active = true;
+		}
+		break;
+	case e1000_media_type_fiber:
+		ret_val = hw->mac.ops.check_for_link(hw);
+		link_active = !!(rd32(E1000_STATUS) & E1000_STATUS_LU);
+		break;
+	case e1000_media_type_internal_serdes:
+		ret_val = hw->mac.ops.check_for_link(hw);
+		link_active = hw->mac.serdes_has_link;
+		break;
+	default:
+	case e1000_media_type_unknown:
+		break;
+	}
+
+	return link_active;
+}
+
 /**
  * igb_watchdog - Timer Call-back
  * @data: pointer to adapter cast into an unsigned long
@@ -2285,25 +2325,10 @@ static void igb_watchdog_task(struct work_struct *work)
 	s32 ret_val;
 	int i;
 
-	if ((netif_carrier_ok(netdev)) &&
-	    (rd32(E1000_STATUS) & E1000_STATUS_LU))
+	link = igb_has_link(adapter);
+	if ((netif_carrier_ok(netdev)) && link)
 		goto link_up;
 
-	ret_val = hw->mac.ops.check_for_link(&adapter->hw);
-	if ((ret_val == E1000_ERR_PHY) &&
-	    (hw->phy.type == e1000_phy_igp_3) &&
-	    (rd32(E1000_CTRL) &
-	     E1000_PHY_CTRL_GBE_DISABLE))
-		dev_info(&adapter->pdev->dev,
-			 "Gigabit has been disabled, downgrading speed\n");
-
-	if ((hw->phy.media_type == e1000_media_type_internal_serdes) &&
-	    !(rd32(E1000_TXCW) & E1000_TXCW_ANE))
-		link = mac->serdes_has_link;
-	else
-		link = rd32(E1000_STATUS) &
-				      E1000_STATUS_LU;
-
 	if (link) {
 		if (!netif_carrier_ok(netdev)) {
 			u32 ctrl;
-- 
cgit v1.2.3-70-g09d2


From c1889bfe687c22f74d1333913ffe8f8da173d601 Mon Sep 17 00:00:00 2001
From: Alexander Duyck <alexander.h.duyck@intel.com>
Date: Fri, 6 Feb 2009 23:16:45 +0000
Subject: igb: make dev_spec a union and remove dynamic allocation

This patch makes dev_spec a union and simplifies it so that it does not
require dynamic allocation and freeing in the driver.

Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 drivers/net/igb/e1000_82575.c | 34 +++++-----------------------------
 drivers/net/igb/e1000_hw.h    |  9 +++++++--
 drivers/net/igb/e1000_mac.c   | 13 -------------
 drivers/net/igb/e1000_mac.h   |  1 -
 drivers/net/igb/igb_main.c    |  2 --
 5 files changed, 12 insertions(+), 47 deletions(-)

(limited to 'drivers/net/igb')

diff --git a/drivers/net/igb/e1000_82575.c b/drivers/net/igb/e1000_82575.c
index f5e4cad7971..ed9e8c0333a 100644
--- a/drivers/net/igb/e1000_82575.c
+++ b/drivers/net/igb/e1000_82575.c
@@ -62,17 +62,12 @@ static bool igb_sgmii_active_82575(struct e1000_hw *);
 static s32  igb_reset_init_script_82575(struct e1000_hw *);
 static s32  igb_read_mac_addr_82575(struct e1000_hw *);
 
-
-struct e1000_dev_spec_82575 {
-	bool sgmii_active;
-};
-
 static s32 igb_get_invariants_82575(struct e1000_hw *hw)
 {
 	struct e1000_phy_info *phy = &hw->phy;
 	struct e1000_nvm_info *nvm = &hw->nvm;
 	struct e1000_mac_info *mac = &hw->mac;
-	struct e1000_dev_spec_82575 *dev_spec;
+	struct e1000_dev_spec_82575 * dev_spec = &hw->dev_spec._82575;
 	u32 eecd;
 	s32 ret_val;
 	u16 size;
@@ -94,17 +89,6 @@ static s32 igb_get_invariants_82575(struct e1000_hw *hw)
 		break;
 	}
 
-	/* MAC initialization */
-	hw->dev_spec_size = sizeof(struct e1000_dev_spec_82575);
-
-	/* Device-specific structure allocation */
-	hw->dev_spec = kzalloc(hw->dev_spec_size, GFP_KERNEL);
-
-	if (!hw->dev_spec)
-		return -ENOMEM;
-
-	dev_spec = (struct e1000_dev_spec_82575 *)hw->dev_spec;
-
 	/* Set media type */
 	/*
 	 * The 82575 uses bits 22:23 for link mode. The mode can be changed
@@ -1234,20 +1218,12 @@ out:
  **/
 static bool igb_sgmii_active_82575(struct e1000_hw *hw)
 {
-	struct e1000_dev_spec_82575 *dev_spec;
-	bool ret_val;
+	struct e1000_dev_spec_82575 *dev_spec = &hw->dev_spec._82575;
 
-	if (hw->mac.type != e1000_82575) {
-		ret_val = false;
-		goto out;
-	}
-
-	dev_spec = (struct e1000_dev_spec_82575 *)hw->dev_spec;
+	if (hw->mac.type != e1000_82575 && hw->mac.type != e1000_82576)
+		return false;
 
-	ret_val = dev_spec->sgmii_active;
-
-out:
-	return ret_val;
+	return dev_spec->sgmii_active;
 }
 
 /**
diff --git a/drivers/net/igb/e1000_hw.h b/drivers/net/igb/e1000_hw.h
index 99504a600a8..06f72ae6a2c 100644
--- a/drivers/net/igb/e1000_hw.h
+++ b/drivers/net/igb/e1000_hw.h
@@ -565,9 +565,12 @@ struct e1000_fc_info {
 	enum e1000_fc_type original_type;
 };
 
+struct e1000_dev_spec_82575 {
+	bool sgmii_active;
+};
+
 struct e1000_hw {
 	void *back;
-	void *dev_spec;
 
 	u8 __iomem *hw_addr;
 	u8 __iomem *flash_address;
@@ -580,7 +583,9 @@ struct e1000_hw {
 	struct e1000_bus_info  bus;
 	struct e1000_host_mng_dhcp_cookie mng_cookie;
 
-	u32 dev_spec_size;
+	union {
+		struct e1000_dev_spec_82575	_82575;
+	} dev_spec;
 
 	u16 device_id;
 	u16 subsystem_vendor_id;
diff --git a/drivers/net/igb/e1000_mac.c b/drivers/net/igb/e1000_mac.c
index 97f0049a5d6..16fa0833368 100644
--- a/drivers/net/igb/e1000_mac.c
+++ b/drivers/net/igb/e1000_mac.c
@@ -37,19 +37,6 @@
 static s32 igb_set_default_fc(struct e1000_hw *hw);
 static s32 igb_set_fc_watermarks(struct e1000_hw *hw);
 
-/**
- *  igb_remove_device - Free device specific structure
- *  @hw: pointer to the HW structure
- *
- *  If a device specific structure was allocated, this function will
- *  free it.
- **/
-void igb_remove_device(struct e1000_hw *hw)
-{
-	/* Freeing the dev_spec member of e1000_hw structure */
-	kfree(hw->dev_spec);
-}
-
 static s32 igb_read_pcie_cap_reg(struct e1000_hw *hw, u32 reg, u16 *value)
 {
 	struct igb_adapter *adapter = hw->back;
diff --git a/drivers/net/igb/e1000_mac.h b/drivers/net/igb/e1000_mac.h
index cbee6af7d91..4ef40d5629d 100644
--- a/drivers/net/igb/e1000_mac.h
+++ b/drivers/net/igb/e1000_mac.h
@@ -63,7 +63,6 @@ void igb_mta_set(struct e1000_hw *hw, u32 hash_value);
 void igb_put_hw_semaphore(struct e1000_hw *hw);
 void igb_rar_set(struct e1000_hw *hw, u8 *addr, u32 index);
 s32  igb_check_alt_mac_addr(struct e1000_hw *hw);
-void igb_remove_device(struct e1000_hw *hw);
 void igb_reset_adaptive(struct e1000_hw *hw);
 void igb_update_adaptive(struct e1000_hw *hw);
 void igb_write_vfta(struct e1000_hw *hw, u32 offset, u32 value);
diff --git a/drivers/net/igb/igb_main.c b/drivers/net/igb/igb_main.c
index b59088eace1..cb3ac349f3b 100644
--- a/drivers/net/igb/igb_main.c
+++ b/drivers/net/igb/igb_main.c
@@ -1329,7 +1329,6 @@ err_eeprom:
 	if (hw->flash_address)
 		iounmap(hw->flash_address);
 
-	igb_remove_device(hw);
 	igb_free_queues(adapter);
 err_sw_init:
 err_hw_init:
@@ -1389,7 +1388,6 @@ static void __devexit igb_remove(struct pci_dev *pdev)
 	if (!igb_check_reset_block(&adapter->hw))
 		igb_reset_phy(&adapter->hw);
 
-	igb_remove_device(&adapter->hw);
 	igb_reset_interrupt_capability(adapter);
 
 	igb_free_queues(adapter);
-- 
cgit v1.2.3-70-g09d2


From 40a70b3889ea50daa10a7f3468920c1f5483155d Mon Sep 17 00:00:00 2001
From: Alexander Duyck <alexander.h.duyck@intel.com>
Date: Fri, 6 Feb 2009 23:17:06 +0000
Subject: igb: read address from RAH/RAL instead of from EEPROM

Instead of pulling the mac address from EEPROM it is easier to pull it from
the RAL/RAH registers and then just copy it into the address structures.

Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 drivers/net/igb/e1000_defines.h |  2 ++
 drivers/net/igb/e1000_nvm.c     | 28 +++++++++++-----------------
 2 files changed, 13 insertions(+), 17 deletions(-)

(limited to 'drivers/net/igb')

diff --git a/drivers/net/igb/e1000_defines.h b/drivers/net/igb/e1000_defines.h
index 40d03426c12..54a14892338 100644
--- a/drivers/net/igb/e1000_defines.h
+++ b/drivers/net/igb/e1000_defines.h
@@ -481,6 +481,8 @@
  * manageability enabled, allowing us room for 15 multicast addresses.
  */
 #define E1000_RAH_AV  0x80000000        /* Receive descriptor valid */
+#define E1000_RAL_MAC_ADDR_LEN 4
+#define E1000_RAH_MAC_ADDR_LEN 2
 
 /* Error Codes */
 #define E1000_ERR_NVM      1
diff --git a/drivers/net/igb/e1000_nvm.c b/drivers/net/igb/e1000_nvm.c
index a84e4e429fa..5942da107a9 100644
--- a/drivers/net/igb/e1000_nvm.c
+++ b/drivers/net/igb/e1000_nvm.c
@@ -515,29 +515,23 @@ out:
  **/
 s32 igb_read_mac_addr(struct e1000_hw *hw)
 {
-	s32  ret_val = 0;
-	u16 offset, nvm_data, i;
+	u32 rar_high;
+	u32 rar_low;
+	u16 i;
 
-	for (i = 0; i < ETH_ALEN; i += 2) {
-		offset = i >> 1;
-		ret_val = hw->nvm.ops.read_nvm(hw, offset, 1, &nvm_data);
-		if (ret_val) {
-			hw_dbg("NVM Read Error\n");
-			goto out;
-		}
-		hw->mac.perm_addr[i] = (u8)(nvm_data & 0xFF);
-		hw->mac.perm_addr[i+1] = (u8)(nvm_data >> 8);
-	}
+	rar_high = rd32(E1000_RAH(0));
+	rar_low = rd32(E1000_RAL(0));
+
+	for (i = 0; i < E1000_RAL_MAC_ADDR_LEN; i++)
+		hw->mac.perm_addr[i] = (u8)(rar_low >> (i*8));
 
-	/* Flip last bit of mac address if we're on second port */
-	if (hw->bus.func == E1000_FUNC_1)
-		hw->mac.perm_addr[5] ^= 1;
+	for (i = 0; i < E1000_RAH_MAC_ADDR_LEN; i++)
+		hw->mac.perm_addr[i+4] = (u8)(rar_high >> (i*8));
 
 	for (i = 0; i < ETH_ALEN; i++)
 		hw->mac.addr[i] = hw->mac.perm_addr[i];
 
-out:
-	return ret_val;
+	return 0;
 }
 
 /**
-- 
cgit v1.2.3-70-g09d2


From a8d2a0c27f84bdbf54b7e1c1a52ef7b8b7196dbc Mon Sep 17 00:00:00 2001
From: Alexander Duyck <alexander.h.duyck@intel.com>
Date: Fri, 6 Feb 2009 23:17:26 +0000
Subject: igb: rename phy ops

This patch renames write_phy_reg to write_reg and read_phy_reg to read_reg.
It seems redundant to call out phy in an operation that is part of the
phy_ops struct.

Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 drivers/net/igb/e1000_82575.c |  38 ++---
 drivers/net/igb/e1000_hw.h    |  10 +-
 drivers/net/igb/e1000_mac.c   |   8 +-
 drivers/net/igb/e1000_phy.c   | 347 ++++++++++++++++--------------------------
 drivers/net/igb/e1000_phy.h   |   1 -
 drivers/net/igb/igb.h         |  12 +-
 6 files changed, 162 insertions(+), 254 deletions(-)

(limited to 'drivers/net/igb')

diff --git a/drivers/net/igb/e1000_82575.c b/drivers/net/igb/e1000_82575.c
index ed9e8c0333a..9a66e345729 100644
--- a/drivers/net/igb/e1000_82575.c
+++ b/drivers/net/igb/e1000_82575.c
@@ -179,13 +179,13 @@ static s32 igb_get_invariants_82575(struct e1000_hw *hw)
 
 	/* PHY function pointers */
 	if (igb_sgmii_active_82575(hw)) {
-		phy->ops.reset_phy          = igb_phy_hw_reset_sgmii_82575;
-		phy->ops.read_phy_reg       = igb_read_phy_reg_sgmii_82575;
-		phy->ops.write_phy_reg      = igb_write_phy_reg_sgmii_82575;
+		phy->ops.reset              = igb_phy_hw_reset_sgmii_82575;
+		phy->ops.read_reg           = igb_read_phy_reg_sgmii_82575;
+		phy->ops.write_reg          = igb_write_phy_reg_sgmii_82575;
 	} else {
-		phy->ops.reset_phy          = igb_phy_hw_reset;
-		phy->ops.read_phy_reg       = igb_read_phy_reg_igp;
-		phy->ops.write_phy_reg      = igb_write_phy_reg_igp;
+		phy->ops.reset              = igb_phy_hw_reset;
+		phy->ops.read_reg           = igb_read_phy_reg_igp;
+		phy->ops.write_reg          = igb_write_phy_reg_igp;
 	}
 
 	/* Set phy->phy_addr and phy->id. */
@@ -435,7 +435,7 @@ static s32 igb_phy_hw_reset_sgmii_82575(struct e1000_hw *hw)
 	 * SFP documentation requires the following to configure the SPF module
 	 * to work on SGMII.  No further documentation is given.
 	 */
-	ret_val = hw->phy.ops.write_phy_reg(hw, 0x1B, 0x8084);
+	ret_val = hw->phy.ops.write_reg(hw, 0x1B, 0x8084);
 	if (ret_val)
 		goto out;
 
@@ -464,28 +464,28 @@ static s32 igb_set_d0_lplu_state_82575(struct e1000_hw *hw, bool active)
 	s32 ret_val;
 	u16 data;
 
-	ret_val = phy->ops.read_phy_reg(hw, IGP02E1000_PHY_POWER_MGMT, &data);
+	ret_val = phy->ops.read_reg(hw, IGP02E1000_PHY_POWER_MGMT, &data);
 	if (ret_val)
 		goto out;
 
 	if (active) {
 		data |= IGP02E1000_PM_D0_LPLU;
-		ret_val = phy->ops.write_phy_reg(hw, IGP02E1000_PHY_POWER_MGMT,
+		ret_val = phy->ops.write_reg(hw, IGP02E1000_PHY_POWER_MGMT,
 						 data);
 		if (ret_val)
 			goto out;
 
 		/* When LPLU is enabled, we should disable SmartSpeed */
-		ret_val = phy->ops.read_phy_reg(hw, IGP01E1000_PHY_PORT_CONFIG,
+		ret_val = phy->ops.read_reg(hw, IGP01E1000_PHY_PORT_CONFIG,
 						&data);
 		data &= ~IGP01E1000_PSCFR_SMART_SPEED;
-		ret_val = phy->ops.write_phy_reg(hw, IGP01E1000_PHY_PORT_CONFIG,
+		ret_val = phy->ops.write_reg(hw, IGP01E1000_PHY_PORT_CONFIG,
 						 data);
 		if (ret_val)
 			goto out;
 	} else {
 		data &= ~IGP02E1000_PM_D0_LPLU;
-		ret_val = phy->ops.write_phy_reg(hw, IGP02E1000_PHY_POWER_MGMT,
+		ret_val = phy->ops.write_reg(hw, IGP02E1000_PHY_POWER_MGMT,
 						 data);
 		/*
 		 * LPLU and SmartSpeed are mutually exclusive.  LPLU is used
@@ -494,24 +494,24 @@ static s32 igb_set_d0_lplu_state_82575(struct e1000_hw *hw, bool active)
 		 * SmartSpeed, so performance is maintained.
 		 */
 		if (phy->smart_speed == e1000_smart_speed_on) {
-			ret_val = phy->ops.read_phy_reg(hw,
+			ret_val = phy->ops.read_reg(hw,
 					IGP01E1000_PHY_PORT_CONFIG, &data);
 			if (ret_val)
 				goto out;
 
 			data |= IGP01E1000_PSCFR_SMART_SPEED;
-			ret_val = phy->ops.write_phy_reg(hw,
+			ret_val = phy->ops.write_reg(hw,
 					IGP01E1000_PHY_PORT_CONFIG, data);
 			if (ret_val)
 				goto out;
 		} else if (phy->smart_speed == e1000_smart_speed_off) {
-			ret_val = phy->ops.read_phy_reg(hw,
+			ret_val = phy->ops.read_reg(hw,
 					IGP01E1000_PHY_PORT_CONFIG, &data);
 			if (ret_val)
 				goto out;
 
 			data &= ~IGP01E1000_PSCFR_SMART_SPEED;
-			ret_val = phy->ops.write_phy_reg(hw,
+			ret_val = phy->ops.write_reg(hw,
 					IGP01E1000_PHY_PORT_CONFIG, data);
 			if (ret_val)
 				goto out;
@@ -1035,7 +1035,7 @@ static s32 igb_setup_copper_link_82575(struct e1000_hw *hw)
 		 * depending on user settings.
 		 */
 		hw_dbg("Forcing Speed and Duplex\n");
-		ret_val = igb_phy_force_speed_duplex(hw);
+		ret_val = hw->phy.ops.force_speed_duplex(hw);
 		if (ret_val) {
 			hw_dbg("Error Forcing Speed and Duplex\n");
 			goto out;
@@ -1423,9 +1423,9 @@ static struct e1000_mac_operations e1000_mac_ops_82575 = {
 };
 
 static struct e1000_phy_operations e1000_phy_ops_82575 = {
-	.acquire_phy          = igb_acquire_phy_82575,
+	.acquire              = igb_acquire_phy_82575,
 	.get_cfg_done         = igb_get_cfg_done_82575,
-	.release_phy          = igb_release_phy_82575,
+	.release              = igb_release_phy_82575,
 };
 
 static struct e1000_nvm_operations e1000_nvm_ops_82575 = {
diff --git a/drivers/net/igb/e1000_hw.h b/drivers/net/igb/e1000_hw.h
index 06f72ae6a2c..5acb8497cd6 100644
--- a/drivers/net/igb/e1000_hw.h
+++ b/drivers/net/igb/e1000_hw.h
@@ -422,18 +422,18 @@ struct e1000_mac_operations {
 };
 
 struct e1000_phy_operations {
-	s32  (*acquire_phy)(struct e1000_hw *);
+	s32  (*acquire)(struct e1000_hw *);
 	s32  (*check_reset_block)(struct e1000_hw *);
 	s32  (*force_speed_duplex)(struct e1000_hw *);
 	s32  (*get_cfg_done)(struct e1000_hw *hw);
 	s32  (*get_cable_length)(struct e1000_hw *);
 	s32  (*get_phy_info)(struct e1000_hw *);
-	s32  (*read_phy_reg)(struct e1000_hw *, u32, u16 *);
-	void (*release_phy)(struct e1000_hw *);
-	s32  (*reset_phy)(struct e1000_hw *);
+	s32  (*read_reg)(struct e1000_hw *, u32, u16 *);
+	void (*release)(struct e1000_hw *);
+	s32  (*reset)(struct e1000_hw *);
 	s32  (*set_d0_lplu_state)(struct e1000_hw *, bool);
 	s32  (*set_d3_lplu_state)(struct e1000_hw *, bool);
-	s32  (*write_phy_reg)(struct e1000_hw *, u32, u16);
+	s32  (*write_reg)(struct e1000_hw *, u32, u16);
 };
 
 struct e1000_nvm_operations {
diff --git a/drivers/net/igb/e1000_mac.c b/drivers/net/igb/e1000_mac.c
index 16fa0833368..d0b695cf956 100644
--- a/drivers/net/igb/e1000_mac.c
+++ b/drivers/net/igb/e1000_mac.c
@@ -707,11 +707,11 @@ s32 igb_config_fc_after_link_up(struct e1000_hw *hw)
 		 * has completed.  We read this twice because this reg has
 		 * some "sticky" (latched) bits.
 		 */
-		ret_val = hw->phy.ops.read_phy_reg(hw, PHY_STATUS,
+		ret_val = hw->phy.ops.read_reg(hw, PHY_STATUS,
 						   &mii_status_reg);
 		if (ret_val)
 			goto out;
-		ret_val = hw->phy.ops.read_phy_reg(hw, PHY_STATUS,
+		ret_val = hw->phy.ops.read_reg(hw, PHY_STATUS,
 						   &mii_status_reg);
 		if (ret_val)
 			goto out;
@@ -729,11 +729,11 @@ s32 igb_config_fc_after_link_up(struct e1000_hw *hw)
 		 * Page Ability Register (Address 5) to determine how
 		 * flow control was negotiated.
 		 */
-		ret_val = hw->phy.ops.read_phy_reg(hw, PHY_AUTONEG_ADV,
+		ret_val = hw->phy.ops.read_reg(hw, PHY_AUTONEG_ADV,
 					    &mii_nway_adv_reg);
 		if (ret_val)
 			goto out;
-		ret_val = hw->phy.ops.read_phy_reg(hw, PHY_LP_ABILITY,
+		ret_val = hw->phy.ops.read_reg(hw, PHY_LP_ABILITY,
 					    &mii_nway_lp_ability_reg);
 		if (ret_val)
 			goto out;
diff --git a/drivers/net/igb/e1000_phy.c b/drivers/net/igb/e1000_phy.c
index 17fddb91c9f..d73ea71d741 100644
--- a/drivers/net/igb/e1000_phy.c
+++ b/drivers/net/igb/e1000_phy.c
@@ -31,10 +31,6 @@
 #include "e1000_mac.h"
 #include "e1000_phy.h"
 
-static s32  igb_get_phy_cfg_done(struct e1000_hw *hw);
-static void igb_release_phy(struct e1000_hw *hw);
-static s32  igb_acquire_phy(struct e1000_hw *hw);
-static s32  igb_phy_reset_dsp(struct e1000_hw *hw);
 static s32  igb_phy_setup_autoneg(struct e1000_hw *hw);
 static void igb_phy_force_speed_duplex_setup(struct e1000_hw *hw,
 					       u16 *phy_ctrl);
@@ -91,13 +87,13 @@ s32 igb_get_phy_id(struct e1000_hw *hw)
 	s32 ret_val = 0;
 	u16 phy_id;
 
-	ret_val = hw->phy.ops.read_phy_reg(hw, PHY_ID1, &phy_id);
+	ret_val = phy->ops.read_reg(hw, PHY_ID1, &phy_id);
 	if (ret_val)
 		goto out;
 
 	phy->id = (u32)(phy_id << 16);
 	udelay(20);
-	ret_val = hw->phy.ops.read_phy_reg(hw, PHY_ID2, &phy_id);
+	ret_val = phy->ops.read_reg(hw, PHY_ID2, &phy_id);
 	if (ret_val)
 		goto out;
 
@@ -118,11 +114,11 @@ static s32 igb_phy_reset_dsp(struct e1000_hw *hw)
 {
 	s32 ret_val;
 
-	ret_val = hw->phy.ops.write_phy_reg(hw, M88E1000_PHY_GEN_CONTROL, 0xC1);
+	ret_val = hw->phy.ops.write_reg(hw, M88E1000_PHY_GEN_CONTROL, 0xC1);
 	if (ret_val)
 		goto out;
 
-	ret_val = hw->phy.ops.write_phy_reg(hw, M88E1000_PHY_GEN_CONTROL, 0);
+	ret_val = hw->phy.ops.write_reg(hw, M88E1000_PHY_GEN_CONTROL, 0);
 
 out:
 	return ret_val;
@@ -257,9 +253,12 @@ out:
  **/
 s32 igb_read_phy_reg_igp(struct e1000_hw *hw, u32 offset, u16 *data)
 {
-	s32 ret_val;
+	s32 ret_val = 0;
+
+	if (!(hw->phy.ops.acquire))
+		goto out;
 
-	ret_val = igb_acquire_phy(hw);
+	ret_val = hw->phy.ops.acquire(hw);
 	if (ret_val)
 		goto out;
 
@@ -268,16 +267,15 @@ s32 igb_read_phy_reg_igp(struct e1000_hw *hw, u32 offset, u16 *data)
 						   IGP01E1000_PHY_PAGE_SELECT,
 						   (u16)offset);
 		if (ret_val) {
-			igb_release_phy(hw);
+			hw->phy.ops.release(hw);
 			goto out;
 		}
 	}
 
-	ret_val = igb_read_phy_reg_mdic(hw,
-					  MAX_PHY_REG_ADDRESS & offset,
-					  data);
+	ret_val = igb_read_phy_reg_mdic(hw, MAX_PHY_REG_ADDRESS & offset,
+					data);
 
-	igb_release_phy(hw);
+	hw->phy.ops.release(hw);
 
 out:
 	return ret_val;
@@ -294,9 +292,12 @@ out:
  **/
 s32 igb_write_phy_reg_igp(struct e1000_hw *hw, u32 offset, u16 data)
 {
-	s32 ret_val;
+	s32 ret_val = 0;
 
-	ret_val = igb_acquire_phy(hw);
+	if (!(hw->phy.ops.acquire))
+		goto out;
+
+	ret_val = hw->phy.ops.acquire(hw);
 	if (ret_val)
 		goto out;
 
@@ -305,16 +306,15 @@ s32 igb_write_phy_reg_igp(struct e1000_hw *hw, u32 offset, u16 data)
 						   IGP01E1000_PHY_PAGE_SELECT,
 						   (u16)offset);
 		if (ret_val) {
-			igb_release_phy(hw);
+			hw->phy.ops.release(hw);
 			goto out;
 		}
 	}
 
-	ret_val = igb_write_phy_reg_mdic(hw,
-					   MAX_PHY_REG_ADDRESS & offset,
+	ret_val = igb_write_phy_reg_mdic(hw, MAX_PHY_REG_ADDRESS & offset,
 					   data);
 
-	igb_release_phy(hw);
+	hw->phy.ops.release(hw);
 
 out:
 	return ret_val;
@@ -339,8 +339,7 @@ s32 igb_copper_link_setup_m88(struct e1000_hw *hw)
 	}
 
 	/* Enable CRS on TX. This must be set for half-duplex operation. */
-	ret_val = hw->phy.ops.read_phy_reg(hw, M88E1000_PHY_SPEC_CTRL,
-					   &phy_data);
+	ret_val = phy->ops.read_reg(hw, M88E1000_PHY_SPEC_CTRL, &phy_data);
 	if (ret_val)
 		goto out;
 
@@ -383,8 +382,7 @@ s32 igb_copper_link_setup_m88(struct e1000_hw *hw)
 	if (phy->disable_polarity_correction == 1)
 		phy_data |= M88E1000_PSCR_POLARITY_REVERSAL;
 
-	ret_val = hw->phy.ops.write_phy_reg(hw, M88E1000_PHY_SPEC_CTRL,
-					    phy_data);
+	ret_val = phy->ops.write_reg(hw, M88E1000_PHY_SPEC_CTRL, phy_data);
 	if (ret_val)
 		goto out;
 
@@ -393,8 +391,7 @@ s32 igb_copper_link_setup_m88(struct e1000_hw *hw)
 		 * Force TX_CLK in the Extended PHY Specific Control Register
 		 * to 25MHz clock.
 		 */
-		ret_val = hw->phy.ops.read_phy_reg(hw,
-					     M88E1000_EXT_PHY_SPEC_CTRL,
+		ret_val = phy->ops.read_reg(hw, M88E1000_EXT_PHY_SPEC_CTRL,
 					     &phy_data);
 		if (ret_val)
 			goto out;
@@ -413,8 +410,7 @@ s32 igb_copper_link_setup_m88(struct e1000_hw *hw)
 			phy_data |= (M88E1000_EPSCR_MASTER_DOWNSHIFT_1X |
 				     M88E1000_EPSCR_SLAVE_DOWNSHIFT_1X);
 		}
-		ret_val = hw->phy.ops.write_phy_reg(hw,
-					     M88E1000_EXT_PHY_SPEC_CTRL,
+		ret_val = phy->ops.write_reg(hw, M88E1000_EXT_PHY_SPEC_CTRL,
 					     phy_data);
 		if (ret_val)
 			goto out;
@@ -449,7 +445,7 @@ s32 igb_copper_link_setup_igp(struct e1000_hw *hw)
 		goto out;
 	}
 
-	ret_val = hw->phy.ops.reset_phy(hw);
+	ret_val = phy->ops.reset(hw);
 	if (ret_val) {
 		hw_dbg("Error resetting the PHY.\n");
 		goto out;
@@ -464,8 +460,8 @@ s32 igb_copper_link_setup_igp(struct e1000_hw *hw)
 	 */
 	if (phy->type == e1000_phy_igp) {
 		/* disable lplu d3 during driver init */
-		if (hw->phy.ops.set_d3_lplu_state)
-			ret_val = hw->phy.ops.set_d3_lplu_state(hw, false);
+		if (phy->ops.set_d3_lplu_state)
+			ret_val = phy->ops.set_d3_lplu_state(hw, false);
 		if (ret_val) {
 			hw_dbg("Error Disabling LPLU D3\n");
 			goto out;
@@ -473,13 +469,13 @@ s32 igb_copper_link_setup_igp(struct e1000_hw *hw)
 	}
 
 	/* disable lplu d0 during driver init */
-	ret_val = hw->phy.ops.set_d0_lplu_state(hw, false);
+	ret_val = phy->ops.set_d0_lplu_state(hw, false);
 	if (ret_val) {
 		hw_dbg("Error Disabling LPLU D0\n");
 		goto out;
 	}
 	/* Configure mdi-mdix settings */
-	ret_val = hw->phy.ops.read_phy_reg(hw, IGP01E1000_PHY_PORT_CTRL, &data);
+	ret_val = phy->ops.read_reg(hw, IGP01E1000_PHY_PORT_CTRL, &data);
 	if (ret_val)
 		goto out;
 
@@ -497,7 +493,7 @@ s32 igb_copper_link_setup_igp(struct e1000_hw *hw)
 		data |= IGP01E1000_PSCR_AUTO_MDIX;
 		break;
 	}
-	ret_val = hw->phy.ops.write_phy_reg(hw, IGP01E1000_PHY_PORT_CTRL, data);
+	ret_val = phy->ops.write_reg(hw, IGP01E1000_PHY_PORT_CTRL, data);
 	if (ret_val)
 		goto out;
 
@@ -510,33 +506,31 @@ s32 igb_copper_link_setup_igp(struct e1000_hw *hw)
 		 */
 		if (phy->autoneg_advertised == ADVERTISE_1000_FULL) {
 			/* Disable SmartSpeed */
-			ret_val = hw->phy.ops.read_phy_reg(hw,
-						     IGP01E1000_PHY_PORT_CONFIG,
-						     &data);
+			ret_val = phy->ops.read_reg(hw,
+						    IGP01E1000_PHY_PORT_CONFIG,
+						    &data);
 			if (ret_val)
 				goto out;
 
 			data &= ~IGP01E1000_PSCFR_SMART_SPEED;
-			ret_val = hw->phy.ops.write_phy_reg(hw,
+			ret_val = phy->ops.write_reg(hw,
 						     IGP01E1000_PHY_PORT_CONFIG,
 						     data);
 			if (ret_val)
 				goto out;
 
 			/* Set auto Master/Slave resolution process */
-			ret_val = hw->phy.ops.read_phy_reg(hw, PHY_1000T_CTRL,
-							   &data);
+			ret_val = phy->ops.read_reg(hw, PHY_1000T_CTRL, &data);
 			if (ret_val)
 				goto out;
 
 			data &= ~CR_1000T_MS_ENABLE;
-			ret_val = hw->phy.ops.write_phy_reg(hw, PHY_1000T_CTRL,
-							    data);
+			ret_val = phy->ops.write_reg(hw, PHY_1000T_CTRL, data);
 			if (ret_val)
 				goto out;
 		}
 
-		ret_val = hw->phy.ops.read_phy_reg(hw, PHY_1000T_CTRL, &data);
+		ret_val = phy->ops.read_reg(hw, PHY_1000T_CTRL, &data);
 		if (ret_val)
 			goto out;
 
@@ -560,7 +554,7 @@ s32 igb_copper_link_setup_igp(struct e1000_hw *hw)
 		default:
 			break;
 		}
-		ret_val = hw->phy.ops.write_phy_reg(hw, PHY_1000T_CTRL, data);
+		ret_val = phy->ops.write_reg(hw, PHY_1000T_CTRL, data);
 		if (ret_val)
 			goto out;
 	}
@@ -609,12 +603,12 @@ s32 igb_copper_link_autoneg(struct e1000_hw *hw)
 	 * Restart auto-negotiation by setting the Auto Neg Enable bit and
 	 * the Auto Neg Restart bit in the PHY control register.
 	 */
-	ret_val = hw->phy.ops.read_phy_reg(hw, PHY_CONTROL, &phy_ctrl);
+	ret_val = phy->ops.read_reg(hw, PHY_CONTROL, &phy_ctrl);
 	if (ret_val)
 		goto out;
 
 	phy_ctrl |= (MII_CR_AUTO_NEG_EN | MII_CR_RESTART_AUTO_NEG);
-	ret_val = hw->phy.ops.write_phy_reg(hw, PHY_CONTROL, phy_ctrl);
+	ret_val = phy->ops.write_reg(hw, PHY_CONTROL, phy_ctrl);
 	if (ret_val)
 		goto out;
 
@@ -656,15 +650,13 @@ static s32 igb_phy_setup_autoneg(struct e1000_hw *hw)
 	phy->autoneg_advertised &= phy->autoneg_mask;
 
 	/* Read the MII Auto-Neg Advertisement Register (Address 4). */
-	ret_val = hw->phy.ops.read_phy_reg(hw, PHY_AUTONEG_ADV,
-					   &mii_autoneg_adv_reg);
+	ret_val = phy->ops.read_reg(hw, PHY_AUTONEG_ADV, &mii_autoneg_adv_reg);
 	if (ret_val)
 		goto out;
 
 	if (phy->autoneg_mask & ADVERTISE_1000_FULL) {
 		/* Read the MII 1000Base-T Control Register (Address 9). */
-		ret_val = hw->phy.ops.read_phy_reg(hw,
-					    PHY_1000T_CTRL,
+		ret_val = phy->ops.read_reg(hw, PHY_1000T_CTRL,
 					    &mii_1000t_ctrl_reg);
 		if (ret_val)
 			goto out;
@@ -785,17 +777,16 @@ static s32 igb_phy_setup_autoneg(struct e1000_hw *hw)
 		goto out;
 	}
 
-	ret_val = hw->phy.ops.write_phy_reg(hw, PHY_AUTONEG_ADV,
-					    mii_autoneg_adv_reg);
+	ret_val = phy->ops.write_reg(hw, PHY_AUTONEG_ADV, mii_autoneg_adv_reg);
 	if (ret_val)
 		goto out;
 
 	hw_dbg("Auto-Neg Advertising %x\n", mii_autoneg_adv_reg);
 
 	if (phy->autoneg_mask & ADVERTISE_1000_FULL) {
-		ret_val = hw->phy.ops.write_phy_reg(hw,
-					      PHY_1000T_CTRL,
-					      mii_1000t_ctrl_reg);
+		ret_val = phy->ops.write_reg(hw,
+					     PHY_1000T_CTRL,
+					     mii_1000t_ctrl_reg);
 		if (ret_val)
 			goto out;
 	}
@@ -819,13 +810,13 @@ s32 igb_phy_force_speed_duplex_igp(struct e1000_hw *hw)
 	u16 phy_data;
 	bool link;
 
-	ret_val = hw->phy.ops.read_phy_reg(hw, PHY_CONTROL, &phy_data);
+	ret_val = phy->ops.read_reg(hw, PHY_CONTROL, &phy_data);
 	if (ret_val)
 		goto out;
 
 	igb_phy_force_speed_duplex_setup(hw, &phy_data);
 
-	ret_val = hw->phy.ops.write_phy_reg(hw, PHY_CONTROL, phy_data);
+	ret_val = phy->ops.write_reg(hw, PHY_CONTROL, phy_data);
 	if (ret_val)
 		goto out;
 
@@ -833,16 +824,14 @@ s32 igb_phy_force_speed_duplex_igp(struct e1000_hw *hw)
 	 * Clear Auto-Crossover to force MDI manually.  IGP requires MDI
 	 * forced whenever speed and duplex are forced.
 	 */
-	ret_val = hw->phy.ops.read_phy_reg(hw, IGP01E1000_PHY_PORT_CTRL,
-					   &phy_data);
+	ret_val = phy->ops.read_reg(hw, IGP01E1000_PHY_PORT_CTRL, &phy_data);
 	if (ret_val)
 		goto out;
 
 	phy_data &= ~IGP01E1000_PSCR_AUTO_MDIX;
 	phy_data &= ~IGP01E1000_PSCR_FORCE_MDI_MDIX;
 
-	ret_val = hw->phy.ops.write_phy_reg(hw, IGP01E1000_PHY_PORT_CTRL,
-					    phy_data);
+	ret_val = phy->ops.write_reg(hw, IGP01E1000_PHY_PORT_CTRL, phy_data);
 	if (ret_val)
 		goto out;
 
@@ -897,20 +886,18 @@ s32 igb_phy_force_speed_duplex_m88(struct e1000_hw *hw)
 	 * Clear Auto-Crossover to force MDI manually.  M88E1000 requires MDI
 	 * forced whenever speed and duplex are forced.
 	 */
-	ret_val = hw->phy.ops.read_phy_reg(hw, M88E1000_PHY_SPEC_CTRL,
-					   &phy_data);
+	ret_val = phy->ops.read_reg(hw, M88E1000_PHY_SPEC_CTRL, &phy_data);
 	if (ret_val)
 		goto out;
 
 	phy_data &= ~M88E1000_PSCR_AUTO_X_MODE;
-	ret_val = hw->phy.ops.write_phy_reg(hw, M88E1000_PHY_SPEC_CTRL,
-					    phy_data);
+	ret_val = phy->ops.write_reg(hw, M88E1000_PHY_SPEC_CTRL, phy_data);
 	if (ret_val)
 		goto out;
 
 	hw_dbg("M88E1000 PSCR: %X\n", phy_data);
 
-	ret_val = hw->phy.ops.read_phy_reg(hw, PHY_CONTROL, &phy_data);
+	ret_val = phy->ops.read_reg(hw, PHY_CONTROL, &phy_data);
 	if (ret_val)
 		goto out;
 
@@ -919,7 +906,7 @@ s32 igb_phy_force_speed_duplex_m88(struct e1000_hw *hw)
 	/* Reset the phy to commit changes. */
 	phy_data |= MII_CR_RESET;
 
-	ret_val = hw->phy.ops.write_phy_reg(hw, PHY_CONTROL, phy_data);
+	ret_val = phy->ops.write_reg(hw, PHY_CONTROL, phy_data);
 	if (ret_val)
 		goto out;
 
@@ -940,7 +927,7 @@ s32 igb_phy_force_speed_duplex_m88(struct e1000_hw *hw)
 			 * We didn't get link.
 			 * Reset the DSP and cross our fingers.
 			 */
-			ret_val = hw->phy.ops.write_phy_reg(hw,
+			ret_val = phy->ops.write_reg(hw,
 						      M88E1000_PHY_PAGE_SELECT,
 						      0x001d);
 			if (ret_val)
@@ -957,8 +944,7 @@ s32 igb_phy_force_speed_duplex_m88(struct e1000_hw *hw)
 			goto out;
 	}
 
-	ret_val = hw->phy.ops.read_phy_reg(hw, M88E1000_EXT_PHY_SPEC_CTRL,
-					   &phy_data);
+	ret_val = phy->ops.read_reg(hw, M88E1000_EXT_PHY_SPEC_CTRL, &phy_data);
 	if (ret_val)
 		goto out;
 
@@ -968,8 +954,7 @@ s32 igb_phy_force_speed_duplex_m88(struct e1000_hw *hw)
 	 * the reset value of 2.5MHz.
 	 */
 	phy_data |= M88E1000_EPSCR_TX_CLK_25;
-	ret_val = hw->phy.ops.write_phy_reg(hw, M88E1000_EXT_PHY_SPEC_CTRL,
-					    phy_data);
+	ret_val = phy->ops.write_reg(hw, M88E1000_EXT_PHY_SPEC_CTRL, phy_data);
 	if (ret_val)
 		goto out;
 
@@ -977,14 +962,12 @@ s32 igb_phy_force_speed_duplex_m88(struct e1000_hw *hw)
 	 * In addition, we must re-enable CRS on Tx for both half and full
 	 * duplex.
 	 */
-	ret_val = hw->phy.ops.read_phy_reg(hw, M88E1000_PHY_SPEC_CTRL,
-					   &phy_data);
+	ret_val = phy->ops.read_reg(hw, M88E1000_PHY_SPEC_CTRL, &phy_data);
 	if (ret_val)
 		goto out;
 
 	phy_data |= M88E1000_PSCR_ASSERT_CRS_ON_TX;
-	ret_val = hw->phy.ops.write_phy_reg(hw, M88E1000_PHY_SPEC_CTRL,
-					    phy_data);
+	ret_val = phy->ops.write_reg(hw, M88E1000_PHY_SPEC_CTRL, phy_data);
 
 out:
 	return ret_val;
@@ -1071,15 +1054,13 @@ s32 igb_set_d3_lplu_state(struct e1000_hw *hw, bool active)
 	s32 ret_val;
 	u16 data;
 
-	ret_val = hw->phy.ops.read_phy_reg(hw, IGP02E1000_PHY_POWER_MGMT,
-					   &data);
+	ret_val = phy->ops.read_reg(hw, IGP02E1000_PHY_POWER_MGMT, &data);
 	if (ret_val)
 		goto out;
 
 	if (!active) {
 		data &= ~IGP02E1000_PM_D3_LPLU;
-		ret_val = hw->phy.ops.write_phy_reg(hw,
-					     IGP02E1000_PHY_POWER_MGMT,
+		ret_val = phy->ops.write_reg(hw, IGP02E1000_PHY_POWER_MGMT,
 					     data);
 		if (ret_val)
 			goto out;
@@ -1090,27 +1071,27 @@ s32 igb_set_d3_lplu_state(struct e1000_hw *hw, bool active)
 		 * SmartSpeed, so performance is maintained.
 		 */
 		if (phy->smart_speed == e1000_smart_speed_on) {
-			ret_val = hw->phy.ops.read_phy_reg(hw,
+			ret_val = phy->ops.read_reg(hw,
 						    IGP01E1000_PHY_PORT_CONFIG,
 						    &data);
 			if (ret_val)
 				goto out;
 
 			data |= IGP01E1000_PSCFR_SMART_SPEED;
-			ret_val = hw->phy.ops.write_phy_reg(hw,
+			ret_val = phy->ops.write_reg(hw,
 						     IGP01E1000_PHY_PORT_CONFIG,
 						     data);
 			if (ret_val)
 				goto out;
 		} else if (phy->smart_speed == e1000_smart_speed_off) {
-			ret_val = hw->phy.ops.read_phy_reg(hw,
+			ret_val = phy->ops.read_reg(hw,
 						     IGP01E1000_PHY_PORT_CONFIG,
 						     &data);
 			if (ret_val)
 				goto out;
 
 			data &= ~IGP01E1000_PSCFR_SMART_SPEED;
-			ret_val = hw->phy.ops.write_phy_reg(hw,
+			ret_val = phy->ops.write_reg(hw,
 						     IGP01E1000_PHY_PORT_CONFIG,
 						     data);
 			if (ret_val)
@@ -1120,22 +1101,19 @@ s32 igb_set_d3_lplu_state(struct e1000_hw *hw, bool active)
 		   (phy->autoneg_advertised == E1000_ALL_NOT_GIG) ||
 		   (phy->autoneg_advertised == E1000_ALL_10_SPEED)) {
 		data |= IGP02E1000_PM_D3_LPLU;
-		ret_val = hw->phy.ops.write_phy_reg(hw,
-					      IGP02E1000_PHY_POWER_MGMT,
+		ret_val = phy->ops.write_reg(hw, IGP02E1000_PHY_POWER_MGMT,
 					      data);
 		if (ret_val)
 			goto out;
 
 		/* When LPLU is enabled, we should disable SmartSpeed */
-		ret_val = hw->phy.ops.read_phy_reg(hw,
-					     IGP01E1000_PHY_PORT_CONFIG,
+		ret_val = phy->ops.read_reg(hw, IGP01E1000_PHY_PORT_CONFIG,
 					     &data);
 		if (ret_val)
 			goto out;
 
 		data &= ~IGP01E1000_PSCFR_SMART_SPEED;
-		ret_val = hw->phy.ops.write_phy_reg(hw,
-					      IGP01E1000_PHY_PORT_CONFIG,
+		ret_val = phy->ops.write_reg(hw, IGP01E1000_PHY_PORT_CONFIG,
 					      data);
 	}
 
@@ -1176,7 +1154,7 @@ s32 igb_check_downshift(struct e1000_hw *hw)
 		goto out;
 	}
 
-	ret_val = hw->phy.ops.read_phy_reg(hw, offset, &phy_data);
+	ret_val = phy->ops.read_reg(hw, offset, &phy_data);
 
 	if (!ret_val)
 		phy->speed_downgraded = (phy_data & mask) ? true : false;
@@ -1199,7 +1177,7 @@ static s32 igb_check_polarity_m88(struct e1000_hw *hw)
 	s32 ret_val;
 	u16 data;
 
-	ret_val = hw->phy.ops.read_phy_reg(hw, M88E1000_PHY_SPEC_STATUS, &data);
+	ret_val = phy->ops.read_reg(hw, M88E1000_PHY_SPEC_STATUS, &data);
 
 	if (!ret_val)
 		phy->cable_polarity = (data & M88E1000_PSSR_REV_POLARITY)
@@ -1228,8 +1206,7 @@ static s32 igb_check_polarity_igp(struct e1000_hw *hw)
 	 * Polarity is determined based on the speed of
 	 * our connection.
 	 */
-	ret_val = hw->phy.ops.read_phy_reg(hw, IGP01E1000_PHY_PORT_STATUS,
-					   &data);
+	ret_val = phy->ops.read_reg(hw, IGP01E1000_PHY_PORT_STATUS, &data);
 	if (ret_val)
 		goto out;
 
@@ -1246,7 +1223,7 @@ static s32 igb_check_polarity_igp(struct e1000_hw *hw)
 		mask	= IGP01E1000_PSSR_POLARITY_REVERSED;
 	}
 
-	ret_val = hw->phy.ops.read_phy_reg(hw, offset, &data);
+	ret_val = phy->ops.read_reg(hw, offset, &data);
 
 	if (!ret_val)
 		phy->cable_polarity = (data & mask)
@@ -1271,10 +1248,10 @@ static s32 igb_wait_autoneg(struct e1000_hw *hw)
 
 	/* Break after autoneg completes or PHY_AUTO_NEG_LIMIT expires. */
 	for (i = PHY_AUTO_NEG_LIMIT; i > 0; i--) {
-		ret_val = hw->phy.ops.read_phy_reg(hw, PHY_STATUS, &phy_status);
+		ret_val = hw->phy.ops.read_reg(hw, PHY_STATUS, &phy_status);
 		if (ret_val)
 			break;
-		ret_val = hw->phy.ops.read_phy_reg(hw, PHY_STATUS, &phy_status);
+		ret_val = hw->phy.ops.read_reg(hw, PHY_STATUS, &phy_status);
 		if (ret_val)
 			break;
 		if (phy_status & MII_SR_AUTONEG_COMPLETE)
@@ -1310,10 +1287,10 @@ s32 igb_phy_has_link(struct e1000_hw *hw, u32 iterations,
 		 * twice due to the link bit being sticky.  No harm doing
 		 * it across the board.
 		 */
-		ret_val = hw->phy.ops.read_phy_reg(hw, PHY_STATUS, &phy_status);
+		ret_val = hw->phy.ops.read_reg(hw, PHY_STATUS, &phy_status);
 		if (ret_val)
 			break;
-		ret_val = hw->phy.ops.read_phy_reg(hw, PHY_STATUS, &phy_status);
+		ret_val = hw->phy.ops.read_reg(hw, PHY_STATUS, &phy_status);
 		if (ret_val)
 			break;
 		if (phy_status & MII_SR_LINK_STATUS)
@@ -1350,8 +1327,7 @@ s32 igb_get_cable_length_m88(struct e1000_hw *hw)
 	s32 ret_val;
 	u16 phy_data, index;
 
-	ret_val = hw->phy.ops.read_phy_reg(hw, M88E1000_PHY_SPEC_STATUS,
-					   &phy_data);
+	ret_val = phy->ops.read_reg(hw, M88E1000_PHY_SPEC_STATUS, &phy_data);
 	if (ret_val)
 		goto out;
 
@@ -1372,8 +1348,8 @@ out:
  *
  *  The automatic gain control (agc) normalizes the amplitude of the
  *  received signal, adjusting for the attenuation produced by the
- *  cable.  By reading the AGC registers, which reperesent the
- *  cobination of course and fine gain value, the value can be put
+ *  cable.  By reading the AGC registers, which represent the
+ *  combination of coarse and fine gain value, the value can be put
  *  into a lookup table to obtain the approximate cable length
  *  for each channel.
  **/
@@ -1392,14 +1368,13 @@ s32 igb_get_cable_length_igp_2(struct e1000_hw *hw)
 
 	/* Read the AGC registers for all channels */
 	for (i = 0; i < IGP02E1000_PHY_CHANNEL_NUM; i++) {
-		ret_val = hw->phy.ops.read_phy_reg(hw, agc_reg_array[i],
-						   &phy_data);
+		ret_val = phy->ops.read_reg(hw, agc_reg_array[i], &phy_data);
 		if (ret_val)
 			goto out;
 
 		/*
 		 * Getting bits 15:9, which represent the combination of
-		 * course and fine gain values.  The result is a number
+		 * coarse and fine gain values.  The result is a number
 		 * that can be put into the lookup table to obtain the
 		 * approximate cable length.
 		 */
@@ -1456,7 +1431,7 @@ s32 igb_get_phy_info_m88(struct e1000_hw *hw)
 	u16 phy_data;
 	bool link;
 
-	if (hw->phy.media_type != e1000_media_type_copper) {
+	if (phy->media_type != e1000_media_type_copper) {
 		hw_dbg("Phy info is only valid for copper media\n");
 		ret_val = -E1000_ERR_CONFIG;
 		goto out;
@@ -1472,33 +1447,29 @@ s32 igb_get_phy_info_m88(struct e1000_hw *hw)
 		goto out;
 	}
 
-	ret_val = hw->phy.ops.read_phy_reg(hw, M88E1000_PHY_SPEC_CTRL,
-					   &phy_data);
+	ret_val = phy->ops.read_reg(hw, M88E1000_PHY_SPEC_CTRL, &phy_data);
 	if (ret_val)
 		goto out;
 
 	phy->polarity_correction = (phy_data & M88E1000_PSCR_POLARITY_REVERSAL)
-				   ? true
-				   : false;
+				   ? true : false;
 
 	ret_val = igb_check_polarity_m88(hw);
 	if (ret_val)
 		goto out;
 
-	ret_val = hw->phy.ops.read_phy_reg(hw, M88E1000_PHY_SPEC_STATUS,
-					   &phy_data);
+	ret_val = phy->ops.read_reg(hw, M88E1000_PHY_SPEC_STATUS, &phy_data);
 	if (ret_val)
 		goto out;
 
 	phy->is_mdix = (phy_data & M88E1000_PSSR_MDIX) ? true : false;
 
 	if ((phy_data & M88E1000_PSSR_SPEED) == M88E1000_PSSR_1000MBS) {
-		ret_val = hw->phy.ops.get_cable_length(hw);
+		ret_val = phy->ops.get_cable_length(hw);
 		if (ret_val)
 			goto out;
 
-		ret_val = hw->phy.ops.read_phy_reg(hw, PHY_1000T_STATUS,
-						   &phy_data);
+		ret_val = phy->ops.read_reg(hw, PHY_1000T_STATUS, &phy_data);
 		if (ret_val)
 			goto out;
 
@@ -1552,8 +1523,7 @@ s32 igb_get_phy_info_igp(struct e1000_hw *hw)
 	if (ret_val)
 		goto out;
 
-	ret_val = hw->phy.ops.read_phy_reg(hw, IGP01E1000_PHY_PORT_STATUS,
-					   &data);
+	ret_val = phy->ops.read_reg(hw, IGP01E1000_PHY_PORT_STATUS, &data);
 	if (ret_val)
 		goto out;
 
@@ -1561,12 +1531,11 @@ s32 igb_get_phy_info_igp(struct e1000_hw *hw)
 
 	if ((data & IGP01E1000_PSSR_SPEED_MASK) ==
 	    IGP01E1000_PSSR_SPEED_1000MBPS) {
-		ret_val = hw->phy.ops.get_cable_length(hw);
+		ret_val = phy->ops.get_cable_length(hw);
 		if (ret_val)
 			goto out;
 
-		ret_val = hw->phy.ops.read_phy_reg(hw, PHY_1000T_STATUS,
-						   &data);
+		ret_val = phy->ops.read_reg(hw, PHY_1000T_STATUS, &data);
 		if (ret_val)
 			goto out;
 
@@ -1599,12 +1568,12 @@ s32 igb_phy_sw_reset(struct e1000_hw *hw)
 	s32 ret_val;
 	u16 phy_ctrl;
 
-	ret_val = hw->phy.ops.read_phy_reg(hw, PHY_CONTROL, &phy_ctrl);
+	ret_val = hw->phy.ops.read_reg(hw, PHY_CONTROL, &phy_ctrl);
 	if (ret_val)
 		goto out;
 
 	phy_ctrl |= MII_CR_RESET;
-	ret_val = hw->phy.ops.write_phy_reg(hw, PHY_CONTROL, phy_ctrl);
+	ret_val = hw->phy.ops.write_reg(hw, PHY_CONTROL, phy_ctrl);
 	if (ret_val)
 		goto out;
 
@@ -1635,7 +1604,7 @@ s32 igb_phy_hw_reset(struct e1000_hw *hw)
 		goto out;
 	}
 
-	ret_val = igb_acquire_phy(hw);
+	ret_val = phy->ops.acquire(hw);
 	if (ret_val)
 		goto out;
 
@@ -1650,74 +1619,14 @@ s32 igb_phy_hw_reset(struct e1000_hw *hw)
 
 	udelay(150);
 
-	igb_release_phy(hw);
+	phy->ops.release(hw);
 
-	ret_val = igb_get_phy_cfg_done(hw);
+	ret_val = phy->ops.get_cfg_done(hw);
 
 out:
 	return ret_val;
 }
 
-/* Internal function pointers */
-
-/**
- *  igb_get_phy_cfg_done - Generic PHY configuration done
- *  @hw: pointer to the HW structure
- *
- *  Return success if silicon family did not implement a family specific
- *  get_cfg_done function.
- **/
-static s32 igb_get_phy_cfg_done(struct e1000_hw *hw)
-{
-	if (hw->phy.ops.get_cfg_done)
-		return hw->phy.ops.get_cfg_done(hw);
-
-	return 0;
-}
-
-/**
- *  igb_release_phy - Generic release PHY
- *  @hw: pointer to the HW structure
- *
- *  Return if silicon family does not require a semaphore when accessing the
- *  PHY.
- **/
-static void igb_release_phy(struct e1000_hw *hw)
-{
-	if (hw->phy.ops.release_phy)
-		hw->phy.ops.release_phy(hw);
-}
-
-/**
- *  igb_acquire_phy - Generic acquire PHY
- *  @hw: pointer to the HW structure
- *
- *  Return success if silicon family does not require a semaphore when
- *  accessing the PHY.
- **/
-static s32 igb_acquire_phy(struct e1000_hw *hw)
-{
-	if (hw->phy.ops.acquire_phy)
-		return hw->phy.ops.acquire_phy(hw);
-
-	return 0;
-}
-
-/**
- *  igb_phy_force_speed_duplex - Generic force PHY speed/duplex
- *  @hw: pointer to the HW structure
- *
- *  When the silicon family has not implemented a forced speed/duplex
- *  function for the PHY, simply return 0.
- **/
-s32 igb_phy_force_speed_duplex(struct e1000_hw *hw)
-{
-	if (hw->phy.ops.force_speed_duplex)
-		return hw->phy.ops.force_speed_duplex(hw);
-
-	return 0;
-}
-
 /**
  *  igb_phy_init_script_igp3 - Inits the IGP3 PHY
  *  @hw: pointer to the HW structure
@@ -1730,75 +1639,75 @@ s32 igb_phy_init_script_igp3(struct e1000_hw *hw)
 
 	/* PHY init IGP 3 */
 	/* Enable rise/fall, 10-mode work in class-A */
-	hw->phy.ops.write_phy_reg(hw, 0x2F5B, 0x9018);
+	hw->phy.ops.write_reg(hw, 0x2F5B, 0x9018);
 	/* Remove all caps from Replica path filter */
-	hw->phy.ops.write_phy_reg(hw, 0x2F52, 0x0000);
+	hw->phy.ops.write_reg(hw, 0x2F52, 0x0000);
 	/* Bias trimming for ADC, AFE and Driver (Default) */
-	hw->phy.ops.write_phy_reg(hw, 0x2FB1, 0x8B24);
+	hw->phy.ops.write_reg(hw, 0x2FB1, 0x8B24);
 	/* Increase Hybrid poly bias */
-	hw->phy.ops.write_phy_reg(hw, 0x2FB2, 0xF8F0);
+	hw->phy.ops.write_reg(hw, 0x2FB2, 0xF8F0);
 	/* Add 4% to TX amplitude in Giga mode */
-	hw->phy.ops.write_phy_reg(hw, 0x2010, 0x10B0);
+	hw->phy.ops.write_reg(hw, 0x2010, 0x10B0);
 	/* Disable trimming (TTT) */
-	hw->phy.ops.write_phy_reg(hw, 0x2011, 0x0000);
+	hw->phy.ops.write_reg(hw, 0x2011, 0x0000);
 	/* Poly DC correction to 94.6% + 2% for all channels */
-	hw->phy.ops.write_phy_reg(hw, 0x20DD, 0x249A);
+	hw->phy.ops.write_reg(hw, 0x20DD, 0x249A);
 	/* ABS DC correction to 95.9% */
-	hw->phy.ops.write_phy_reg(hw, 0x20DE, 0x00D3);
+	hw->phy.ops.write_reg(hw, 0x20DE, 0x00D3);
 	/* BG temp curve trim */
-	hw->phy.ops.write_phy_reg(hw, 0x28B4, 0x04CE);
+	hw->phy.ops.write_reg(hw, 0x28B4, 0x04CE);
 	/* Increasing ADC OPAMP stage 1 currents to max */
-	hw->phy.ops.write_phy_reg(hw, 0x2F70, 0x29E4);
+	hw->phy.ops.write_reg(hw, 0x2F70, 0x29E4);
 	/* Force 1000 ( required for enabling PHY regs configuration) */
-	hw->phy.ops.write_phy_reg(hw, 0x0000, 0x0140);
+	hw->phy.ops.write_reg(hw, 0x0000, 0x0140);
 	/* Set upd_freq to 6 */
-	hw->phy.ops.write_phy_reg(hw, 0x1F30, 0x1606);
+	hw->phy.ops.write_reg(hw, 0x1F30, 0x1606);
 	/* Disable NPDFE */
-	hw->phy.ops.write_phy_reg(hw, 0x1F31, 0xB814);
+	hw->phy.ops.write_reg(hw, 0x1F31, 0xB814);
 	/* Disable adaptive fixed FFE (Default) */
-	hw->phy.ops.write_phy_reg(hw, 0x1F35, 0x002A);
+	hw->phy.ops.write_reg(hw, 0x1F35, 0x002A);
 	/* Enable FFE hysteresis */
-	hw->phy.ops.write_phy_reg(hw, 0x1F3E, 0x0067);
+	hw->phy.ops.write_reg(hw, 0x1F3E, 0x0067);
 	/* Fixed FFE for short cable lengths */
-	hw->phy.ops.write_phy_reg(hw, 0x1F54, 0x0065);
+	hw->phy.ops.write_reg(hw, 0x1F54, 0x0065);
 	/* Fixed FFE for medium cable lengths */
-	hw->phy.ops.write_phy_reg(hw, 0x1F55, 0x002A);
+	hw->phy.ops.write_reg(hw, 0x1F55, 0x002A);
 	/* Fixed FFE for long cable lengths */
-	hw->phy.ops.write_phy_reg(hw, 0x1F56, 0x002A);
+	hw->phy.ops.write_reg(hw, 0x1F56, 0x002A);
 	/* Enable Adaptive Clip Threshold */
-	hw->phy.ops.write_phy_reg(hw, 0x1F72, 0x3FB0);
+	hw->phy.ops.write_reg(hw, 0x1F72, 0x3FB0);
 	/* AHT reset limit to 1 */
-	hw->phy.ops.write_phy_reg(hw, 0x1F76, 0xC0FF);
+	hw->phy.ops.write_reg(hw, 0x1F76, 0xC0FF);
 	/* Set AHT master delay to 127 msec */
-	hw->phy.ops.write_phy_reg(hw, 0x1F77, 0x1DEC);
+	hw->phy.ops.write_reg(hw, 0x1F77, 0x1DEC);
 	/* Set scan bits for AHT */
-	hw->phy.ops.write_phy_reg(hw, 0x1F78, 0xF9EF);
+	hw->phy.ops.write_reg(hw, 0x1F78, 0xF9EF);
 	/* Set AHT Preset bits */
-	hw->phy.ops.write_phy_reg(hw, 0x1F79, 0x0210);
+	hw->phy.ops.write_reg(hw, 0x1F79, 0x0210);
 	/* Change integ_factor of channel A to 3 */
-	hw->phy.ops.write_phy_reg(hw, 0x1895, 0x0003);
+	hw->phy.ops.write_reg(hw, 0x1895, 0x0003);
 	/* Change prop_factor of channels BCD to 8 */
-	hw->phy.ops.write_phy_reg(hw, 0x1796, 0x0008);
+	hw->phy.ops.write_reg(hw, 0x1796, 0x0008);
 	/* Change cg_icount + enable integbp for channels BCD */
-	hw->phy.ops.write_phy_reg(hw, 0x1798, 0xD008);
+	hw->phy.ops.write_reg(hw, 0x1798, 0xD008);
 	/*
 	 * Change cg_icount + enable integbp + change prop_factor_master
 	 * to 8 for channel A
 	 */
-	hw->phy.ops.write_phy_reg(hw, 0x1898, 0xD918);
+	hw->phy.ops.write_reg(hw, 0x1898, 0xD918);
 	/* Disable AHT in Slave mode on channel A */
-	hw->phy.ops.write_phy_reg(hw, 0x187A, 0x0800);
+	hw->phy.ops.write_reg(hw, 0x187A, 0x0800);
 	/*
 	 * Enable LPLU and disable AN to 1000 in non-D0a states,
 	 * Enable SPD+B2B
 	 */
-	hw->phy.ops.write_phy_reg(hw, 0x0019, 0x008D);
+	hw->phy.ops.write_reg(hw, 0x0019, 0x008D);
 	/* Enable restart AN on an1000_dis change */
-	hw->phy.ops.write_phy_reg(hw, 0x001B, 0x2080);
+	hw->phy.ops.write_reg(hw, 0x001B, 0x2080);
 	/* Enable wh_fifo read clock in 10/100 modes */
-	hw->phy.ops.write_phy_reg(hw, 0x0014, 0x0045);
+	hw->phy.ops.write_reg(hw, 0x0014, 0x0045);
 	/* Restart AN, Speed selection is 1000 */
-	hw->phy.ops.write_phy_reg(hw, 0x0000, 0x1340);
+	hw->phy.ops.write_reg(hw, 0x0000, 0x1340);
 
 	return 0;
 }
diff --git a/drivers/net/igb/e1000_phy.h b/drivers/net/igb/e1000_phy.h
index 8f8fe0a780d..7499e5deec4 100644
--- a/drivers/net/igb/e1000_phy.h
+++ b/drivers/net/igb/e1000_phy.h
@@ -44,7 +44,6 @@ enum e1000_smart_speed {
 s32  igb_check_downshift(struct e1000_hw *hw);
 s32  igb_check_reset_block(struct e1000_hw *hw);
 s32  igb_copper_link_autoneg(struct e1000_hw *hw);
-s32  igb_phy_force_speed_duplex(struct e1000_hw *hw);
 s32  igb_copper_link_setup_igp(struct e1000_hw *hw);
 s32  igb_copper_link_setup_m88(struct e1000_hw *hw);
 s32  igb_phy_force_speed_duplex_igp(struct e1000_hw *hw);
diff --git a/drivers/net/igb/igb.h b/drivers/net/igb/igb.h
index 530d7aa4cb8..a2a812deb6b 100644
--- a/drivers/net/igb/igb.h
+++ b/drivers/net/igb/igb.h
@@ -313,24 +313,24 @@ extern void igb_set_ethtool_ops(struct net_device *);
 
 static inline s32 igb_reset_phy(struct e1000_hw *hw)
 {
-	if (hw->phy.ops.reset_phy)
-		return hw->phy.ops.reset_phy(hw);
+	if (hw->phy.ops.reset)
+		return hw->phy.ops.reset(hw);
 
 	return 0;
 }
 
 static inline s32 igb_read_phy_reg(struct e1000_hw *hw, u32 offset, u16 *data)
 {
-	if (hw->phy.ops.read_phy_reg)
-		return hw->phy.ops.read_phy_reg(hw, offset, data);
+	if (hw->phy.ops.read_reg)
+		return hw->phy.ops.read_reg(hw, offset, data);
 
 	return 0;
 }
 
 static inline s32 igb_write_phy_reg(struct e1000_hw *hw, u32 offset, u16 data)
 {
-	if (hw->phy.ops.write_phy_reg)
-		return hw->phy.ops.write_phy_reg(hw, offset, data);
+	if (hw->phy.ops.write_reg)
+		return hw->phy.ops.write_reg(hw, offset, data);
 
 	return 0;
 }
-- 
cgit v1.2.3-70-g09d2


From 312c75aee7606e886d91c810bc491c9f40ff5837 Mon Sep 17 00:00:00 2001
From: Alexander Duyck <alexander.h.duyck@intel.com>
Date: Fri, 6 Feb 2009 23:17:47 +0000
Subject: igb: rename nvm ops

All of the nvm ops have the tag _nvm added to the end which is redundant
since all of the calls to the ops have to go through the nvm ops struct
anyway.

Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 drivers/net/igb/e1000_82575.c |  8 ++++----
 drivers/net/igb/e1000_hw.h    |  8 ++++----
 drivers/net/igb/e1000_mac.c   |  9 ++++-----
 drivers/net/igb/e1000_nvm.c   | 14 +++++++-------
 drivers/net/igb/igb_ethtool.c | 14 +++++++-------
 drivers/net/igb/igb_main.c    |  3 +--
 6 files changed, 27 insertions(+), 29 deletions(-)

(limited to 'drivers/net/igb')

diff --git a/drivers/net/igb/e1000_82575.c b/drivers/net/igb/e1000_82575.c
index 9a66e345729..527d4c8e53f 100644
--- a/drivers/net/igb/e1000_82575.c
+++ b/drivers/net/igb/e1000_82575.c
@@ -1429,10 +1429,10 @@ static struct e1000_phy_operations e1000_phy_ops_82575 = {
 };
 
 static struct e1000_nvm_operations e1000_nvm_ops_82575 = {
-	.acquire_nvm          = igb_acquire_nvm_82575,
-	.read_nvm             = igb_read_nvm_eerd,
-	.release_nvm          = igb_release_nvm_82575,
-	.write_nvm            = igb_write_nvm_spi,
+	.acquire              = igb_acquire_nvm_82575,
+	.read                 = igb_read_nvm_eerd,
+	.release              = igb_release_nvm_82575,
+	.write                = igb_write_nvm_spi,
 };
 
 const struct e1000_info e1000_82575_info = {
diff --git a/drivers/net/igb/e1000_hw.h b/drivers/net/igb/e1000_hw.h
index 5acb8497cd6..acb42a21e95 100644
--- a/drivers/net/igb/e1000_hw.h
+++ b/drivers/net/igb/e1000_hw.h
@@ -437,10 +437,10 @@ struct e1000_phy_operations {
 };
 
 struct e1000_nvm_operations {
-	s32  (*acquire_nvm)(struct e1000_hw *);
-	s32  (*read_nvm)(struct e1000_hw *, u16, u16, u16 *);
-	void (*release_nvm)(struct e1000_hw *);
-	s32  (*write_nvm)(struct e1000_hw *, u16, u16, u16 *);
+	s32  (*acquire)(struct e1000_hw *);
+	s32  (*read)(struct e1000_hw *, u16, u16, u16 *);
+	void (*release)(struct e1000_hw *);
+	s32  (*write)(struct e1000_hw *, u16, u16, u16 *);
 };
 
 struct e1000_info {
diff --git a/drivers/net/igb/e1000_mac.c b/drivers/net/igb/e1000_mac.c
index d0b695cf956..6682206750d 100644
--- a/drivers/net/igb/e1000_mac.c
+++ b/drivers/net/igb/e1000_mac.c
@@ -135,7 +135,7 @@ s32 igb_check_alt_mac_addr(struct e1000_hw *hw)
 	u16 offset, nvm_alt_mac_addr_offset, nvm_data;
 	u8 alt_mac_addr[ETH_ALEN];
 
-	ret_val = hw->nvm.ops.read_nvm(hw, NVM_ALT_MAC_ADDR_PTR, 1,
+	ret_val = hw->nvm.ops.read(hw, NVM_ALT_MAC_ADDR_PTR, 1,
 				 &nvm_alt_mac_addr_offset);
 	if (ret_val) {
 		hw_dbg("NVM Read Error\n");
@@ -152,7 +152,7 @@ s32 igb_check_alt_mac_addr(struct e1000_hw *hw)
 
 	for (i = 0; i < ETH_ALEN; i += 2) {
 		offset = nvm_alt_mac_addr_offset + (i >> 1);
-		ret_val = hw->nvm.ops.read_nvm(hw, offset, 1, &nvm_data);
+		ret_val = hw->nvm.ops.read(hw, offset, 1, &nvm_data);
 		if (ret_val) {
 			hw_dbg("NVM Read Error\n");
 			goto out;
@@ -575,8 +575,7 @@ static s32 igb_set_default_fc(struct e1000_hw *hw)
 	 * control setting, then the variable hw->fc will
 	 * be initialized based on a value in the EEPROM.
 	 */
-	ret_val = hw->nvm.ops.read_nvm(hw, NVM_INIT_CONTROL2_REG, 1,
-				       &nvm_data);
+	ret_val = hw->nvm.ops.read(hw, NVM_INIT_CONTROL2_REG, 1, &nvm_data);
 
 	if (ret_val) {
 		hw_dbg("NVM Read Error\n");
@@ -1028,7 +1027,7 @@ static s32 igb_valid_led_default(struct e1000_hw *hw, u16 *data)
 {
 	s32 ret_val;
 
-	ret_val = hw->nvm.ops.read_nvm(hw, NVM_ID_LED_SETTINGS, 1, data);
+	ret_val = hw->nvm.ops.read(hw, NVM_ID_LED_SETTINGS, 1, data);
 	if (ret_val) {
 		hw_dbg("NVM Read Error\n");
 		goto out;
diff --git a/drivers/net/igb/e1000_nvm.c b/drivers/net/igb/e1000_nvm.c
index 5942da107a9..33798642208 100644
--- a/drivers/net/igb/e1000_nvm.c
+++ b/drivers/net/igb/e1000_nvm.c
@@ -419,7 +419,7 @@ s32 igb_write_nvm_spi(struct e1000_hw *hw, u16 offset, u16 words, u16 *data)
 		goto out;
 	}
 
-	ret_val = hw->nvm.ops.acquire_nvm(hw);
+	ret_val = hw->nvm.ops.acquire(hw);
 	if (ret_val)
 		goto out;
 
@@ -468,7 +468,7 @@ s32 igb_write_nvm_spi(struct e1000_hw *hw, u16 offset, u16 words, u16 *data)
 
 	msleep(10);
 release:
-	hw->nvm.ops.release_nvm(hw);
+	hw->nvm.ops.release(hw);
 
 out:
 	return ret_val;
@@ -487,14 +487,14 @@ s32 igb_read_part_num(struct e1000_hw *hw, u32 *part_num)
 	s32  ret_val;
 	u16 nvm_data;
 
-	ret_val = hw->nvm.ops.read_nvm(hw, NVM_PBA_OFFSET_0, 1, &nvm_data);
+	ret_val = hw->nvm.ops.read(hw, NVM_PBA_OFFSET_0, 1, &nvm_data);
 	if (ret_val) {
 		hw_dbg("NVM Read Error\n");
 		goto out;
 	}
 	*part_num = (u32)(nvm_data << 16);
 
-	ret_val = hw->nvm.ops.read_nvm(hw, NVM_PBA_OFFSET_1, 1, &nvm_data);
+	ret_val = hw->nvm.ops.read(hw, NVM_PBA_OFFSET_1, 1, &nvm_data);
 	if (ret_val) {
 		hw_dbg("NVM Read Error\n");
 		goto out;
@@ -548,7 +548,7 @@ s32 igb_validate_nvm_checksum(struct e1000_hw *hw)
 	u16 i, nvm_data;
 
 	for (i = 0; i < (NVM_CHECKSUM_REG + 1); i++) {
-		ret_val = hw->nvm.ops.read_nvm(hw, i, 1, &nvm_data);
+		ret_val = hw->nvm.ops.read(hw, i, 1, &nvm_data);
 		if (ret_val) {
 			hw_dbg("NVM Read Error\n");
 			goto out;
@@ -581,7 +581,7 @@ s32 igb_update_nvm_checksum(struct e1000_hw *hw)
 	u16 i, nvm_data;
 
 	for (i = 0; i < NVM_CHECKSUM_REG; i++) {
-		ret_val = hw->nvm.ops.read_nvm(hw, i, 1, &nvm_data);
+		ret_val = hw->nvm.ops.read(hw, i, 1, &nvm_data);
 		if (ret_val) {
 			hw_dbg("NVM Read Error while updating checksum.\n");
 			goto out;
@@ -589,7 +589,7 @@ s32 igb_update_nvm_checksum(struct e1000_hw *hw)
 		checksum += nvm_data;
 	}
 	checksum = (u16) NVM_SUM - checksum;
-	ret_val = hw->nvm.ops.write_nvm(hw, NVM_CHECKSUM_REG, 1, &checksum);
+	ret_val = hw->nvm.ops.write(hw, NVM_CHECKSUM_REG, 1, &checksum);
 	if (ret_val)
 		hw_dbg("NVM Write Error while updating checksum.\n");
 
diff --git a/drivers/net/igb/igb_ethtool.c b/drivers/net/igb/igb_ethtool.c
index 4606e63fc6f..a5bf8ef2848 100644
--- a/drivers/net/igb/igb_ethtool.c
+++ b/drivers/net/igb/igb_ethtool.c
@@ -593,12 +593,12 @@ static int igb_get_eeprom(struct net_device *netdev,
 		return -ENOMEM;
 
 	if (hw->nvm.type == e1000_nvm_eeprom_spi)
-		ret_val = hw->nvm.ops.read_nvm(hw, first_word,
+		ret_val = hw->nvm.ops.read(hw, first_word,
 					    last_word - first_word + 1,
 					    eeprom_buff);
 	else {
 		for (i = 0; i < last_word - first_word + 1; i++) {
-			ret_val = hw->nvm.ops.read_nvm(hw, first_word + i, 1,
+			ret_val = hw->nvm.ops.read(hw, first_word + i, 1,
 						    &eeprom_buff[i]);
 			if (ret_val)
 				break;
@@ -645,14 +645,14 @@ static int igb_set_eeprom(struct net_device *netdev,
 	if (eeprom->offset & 1) {
 		/* need read/modify/write of first changed EEPROM word */
 		/* only the second byte of the word is being modified */
-		ret_val = hw->nvm.ops.read_nvm(hw, first_word, 1,
+		ret_val = hw->nvm.ops.read(hw, first_word, 1,
 					    &eeprom_buff[0]);
 		ptr++;
 	}
 	if (((eeprom->offset + eeprom->len) & 1) && (ret_val == 0)) {
 		/* need read/modify/write of last changed EEPROM word */
 		/* only the first byte of the word is being modified */
-		ret_val = hw->nvm.ops.read_nvm(hw, last_word, 1,
+		ret_val = hw->nvm.ops.read(hw, last_word, 1,
 				   &eeprom_buff[last_word - first_word]);
 	}
 
@@ -665,7 +665,7 @@ static int igb_set_eeprom(struct net_device *netdev,
 	for (i = 0; i < last_word - first_word + 1; i++)
 		eeprom_buff[i] = cpu_to_le16(eeprom_buff[i]);
 
-	ret_val = hw->nvm.ops.write_nvm(hw, first_word,
+	ret_val = hw->nvm.ops.write(hw, first_word,
 				     last_word - first_word + 1, eeprom_buff);
 
 	/* Update the checksum over the first part of the EEPROM if needed
@@ -689,7 +689,7 @@ static void igb_get_drvinfo(struct net_device *netdev,
 
 	/* EEPROM image version # is reported as firmware version # for
 	 * 82575 controllers */
-	adapter->hw.nvm.ops.read_nvm(&adapter->hw, 5, 1, &eeprom_data);
+	adapter->hw.nvm.ops.read(&adapter->hw, 5, 1, &eeprom_data);
 	sprintf(firmware_version, "%d.%d-%d",
 		(eeprom_data & 0xF000) >> 12,
 		(eeprom_data & 0x0FF0) >> 4,
@@ -1056,7 +1056,7 @@ static int igb_eeprom_test(struct igb_adapter *adapter, u64 *data)
 	*data = 0;
 	/* Read and add up the contents of the EEPROM */
 	for (i = 0; i < (NVM_CHECKSUM_REG + 1); i++) {
-		if ((adapter->hw.nvm.ops.read_nvm(&adapter->hw, i, 1, &temp))
+		if ((adapter->hw.nvm.ops.read(&adapter->hw, i, 1, &temp))
 		    < 0) {
 			*data = 1;
 			break;
diff --git a/drivers/net/igb/igb_main.c b/drivers/net/igb/igb_main.c
index cb3ac349f3b..e3a3582fec9 100644
--- a/drivers/net/igb/igb_main.c
+++ b/drivers/net/igb/igb_main.c
@@ -1243,8 +1243,7 @@ static int __devinit igb_probe(struct pci_dev *pdev,
 
 	if (hw->bus.func == 0 ||
 	    hw->device_id == E1000_DEV_ID_82575EB_COPPER)
-		hw->nvm.ops.read_nvm(hw, NVM_INIT_CONTROL3_PORT_A, 1,
-				     &eeprom_data);
+		hw->nvm.ops.read(hw, NVM_INIT_CONTROL3_PORT_A, 1, &eeprom_data);
 
 	if (eeprom_data & eeprom_apme_mask)
 		adapter->eeprom_wol |= E1000_WUFC_MAG;
-- 
cgit v1.2.3-70-g09d2


From 0fbe67af3ee1928f7eae273133b7112d1665d4d3 Mon Sep 17 00:00:00 2001
From: Alexander Duyck <alexander.h.duyck@intel.com>
Date: Fri, 6 Feb 2009 23:18:06 +0000
Subject: igb: remove unused rx_hdr_split statistic

This statistic is not used and so it is safe to remove

Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 drivers/net/igb/igb.h         | 1 -
 drivers/net/igb/igb_ethtool.c | 1 -
 2 files changed, 2 deletions(-)

(limited to 'drivers/net/igb')

diff --git a/drivers/net/igb/igb.h b/drivers/net/igb/igb.h
index a2a812deb6b..88fdfe4961d 100644
--- a/drivers/net/igb/igb.h
+++ b/drivers/net/igb/igb.h
@@ -238,7 +238,6 @@ struct igb_adapter {
 
 	u64 hw_csum_err;
 	u64 hw_csum_good;
-	u64 rx_hdr_split;
 	u32 alloc_rx_buff_failed;
 	bool rx_csum;
 	u32 gorc;
diff --git a/drivers/net/igb/igb_ethtool.c b/drivers/net/igb/igb_ethtool.c
index a5bf8ef2848..84be46c2a0f 100644
--- a/drivers/net/igb/igb_ethtool.c
+++ b/drivers/net/igb/igb_ethtool.c
@@ -88,7 +88,6 @@ static const struct igb_stats igb_gstrings_stats[] = {
 	{ "rx_long_byte_count", IGB_STAT(stats.gorc) },
 	{ "rx_csum_offload_good", IGB_STAT(hw_csum_good) },
 	{ "rx_csum_offload_errors", IGB_STAT(hw_csum_err) },
-	{ "rx_header_split", IGB_STAT(rx_hdr_split) },
 	{ "alloc_rx_buff_failed", IGB_STAT(alloc_rx_buff_failed) },
 	{ "tx_smbus", IGB_STAT(stats.mgptc) },
 	{ "rx_smbus", IGB_STAT(stats.mgprc) },
-- 
cgit v1.2.3-70-g09d2


From 7d8eb29e6eae9cc13e1975daf28d2ae789c1f110 Mon Sep 17 00:00:00 2001
From: Alexander Duyck <alexander.h.duyck@intel.com>
Date: Fri, 6 Feb 2009 23:18:27 +0000
Subject: igb: update feature flags supported in ethtool

This driver is currently using HW_CSUM which is not correct.  Update this
to use the IP_CSUM and IPV6_CSUM flags.  In addition consolidate the TSO
flag setting.

Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 drivers/net/igb/igb_ethtool.c | 16 +++++++---------
 drivers/net/igb/igb_main.c    |  5 +++--
 2 files changed, 10 insertions(+), 11 deletions(-)

(limited to 'drivers/net/igb')

diff --git a/drivers/net/igb/igb_ethtool.c b/drivers/net/igb/igb_ethtool.c
index 84be46c2a0f..d7bdc6c16d0 100644
--- a/drivers/net/igb/igb_ethtool.c
+++ b/drivers/net/igb/igb_ethtool.c
@@ -287,15 +287,15 @@ static int igb_set_rx_csum(struct net_device *netdev, u32 data)
 
 static u32 igb_get_tx_csum(struct net_device *netdev)
 {
-	return (netdev->features & NETIF_F_HW_CSUM) != 0;
+	return (netdev->features & NETIF_F_IP_CSUM) != 0;
 }
 
 static int igb_set_tx_csum(struct net_device *netdev, u32 data)
 {
 	if (data)
-		netdev->features |= NETIF_F_HW_CSUM;
+		netdev->features |= (NETIF_F_IP_CSUM | NETIF_F_IPV6_CSUM);
 	else
-		netdev->features &= ~NETIF_F_HW_CSUM;
+		netdev->features &= ~(NETIF_F_IP_CSUM | NETIF_F_IPV6_CSUM);
 
 	return 0;
 }
@@ -304,15 +304,13 @@ static int igb_set_tso(struct net_device *netdev, u32 data)
 {
 	struct igb_adapter *adapter = netdev_priv(netdev);
 
-	if (data)
+	if (data) {
 		netdev->features |= NETIF_F_TSO;
-	else
-		netdev->features &= ~NETIF_F_TSO;
-
-	if (data)
 		netdev->features |= NETIF_F_TSO6;
-	else
+	} else {
+		netdev->features &= ~NETIF_F_TSO;
 		netdev->features &= ~NETIF_F_TSO6;
+	}
 
 	dev_info(&adapter->pdev->dev, "TSO is %s\n",
 		 data ? "Enabled" : "Disabled");
diff --git a/drivers/net/igb/igb_main.c b/drivers/net/igb/igb_main.c
index e3a3582fec9..8c27e0a23df 100644
--- a/drivers/net/igb/igb_main.c
+++ b/drivers/net/igb/igb_main.c
@@ -1158,11 +1158,12 @@ static int __devinit igb_probe(struct pci_dev *pdev,
 			"PHY reset is blocked due to SOL/IDER session.\n");
 
 	netdev->features = NETIF_F_SG |
-			   NETIF_F_HW_CSUM |
+			   NETIF_F_IP_CSUM |
 			   NETIF_F_HW_VLAN_TX |
 			   NETIF_F_HW_VLAN_RX |
 			   NETIF_F_HW_VLAN_FILTER;
 
+	netdev->features |= NETIF_F_IPV6_CSUM;
 	netdev->features |= NETIF_F_TSO;
 	netdev->features |= NETIF_F_TSO6;
 
@@ -1172,7 +1173,7 @@ static int __devinit igb_probe(struct pci_dev *pdev,
 
 	netdev->vlan_features |= NETIF_F_TSO;
 	netdev->vlan_features |= NETIF_F_TSO6;
-	netdev->vlan_features |= NETIF_F_HW_CSUM;
+	netdev->vlan_features |= NETIF_F_IP_CSUM;
 	netdev->vlan_features |= NETIF_F_SG;
 
 	if (pci_using_dac)
-- 
cgit v1.2.3-70-g09d2


From 2753f4cebf034a53f87b24679f394854275dcacb Mon Sep 17 00:00:00 2001
From: Alexander Duyck <alexander.h.duyck@intel.com>
Date: Fri, 6 Feb 2009 23:18:48 +0000
Subject: igb: update testing done by ethtool

Most of the code for the testing has pretty much become stale at this point
and is need of update.  This update just streamlines most of the code,
widens the range of interrupt testing.

Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 drivers/net/igb/igb_ethtool.c | 87 ++++++++++++++++++++++++++++++-------------
 1 file changed, 61 insertions(+), 26 deletions(-)

(limited to 'drivers/net/igb')

diff --git a/drivers/net/igb/igb_ethtool.c b/drivers/net/igb/igb_ethtool.c
index d7bdc6c16d0..33c23a117fe 100644
--- a/drivers/net/igb/igb_ethtool.c
+++ b/drivers/net/igb/igb_ethtool.c
@@ -855,23 +855,26 @@ static struct igb_reg_test reg_test_82576[] = {
 	{ E1000_RDBAL(0),  0x100, 4, PATTERN_TEST, 0xFFFFFF80, 0xFFFFFFFF },
 	{ E1000_RDBAH(0),  0x100, 4, PATTERN_TEST, 0xFFFFFFFF, 0xFFFFFFFF },
 	{ E1000_RDLEN(0),  0x100, 4, PATTERN_TEST, 0x000FFFF0, 0x000FFFFF },
-	{ E1000_RDBAL(4),  0x40,  8, PATTERN_TEST, 0xFFFFFF80, 0xFFFFFFFF },
-	{ E1000_RDBAH(4),  0x40,  8, PATTERN_TEST, 0xFFFFFFFF, 0xFFFFFFFF },
-	{ E1000_RDLEN(4),  0x40,  8, PATTERN_TEST, 0x000FFFF0, 0x000FFFFF },
-	/* Enable all four RX queues before testing. */
-	{ E1000_RXDCTL(0), 0x100, 1,  WRITE_NO_TEST, 0, E1000_RXDCTL_QUEUE_ENABLE },
+	{ E1000_RDBAL(4),  0x40, 12, PATTERN_TEST, 0xFFFFFF80, 0xFFFFFFFF },
+	{ E1000_RDBAH(4),  0x40, 12, PATTERN_TEST, 0xFFFFFFFF, 0xFFFFFFFF },
+	{ E1000_RDLEN(4),  0x40, 12, PATTERN_TEST, 0x000FFFF0, 0x000FFFFF },
+	/* Enable all RX queues before testing. */
+	{ E1000_RXDCTL(0), 0x100, 4,  WRITE_NO_TEST, 0, E1000_RXDCTL_QUEUE_ENABLE },
+	{ E1000_RXDCTL(4), 0x40, 12,  WRITE_NO_TEST, 0, E1000_RXDCTL_QUEUE_ENABLE },
 	/* RDH is read-only for 82576, only test RDT. */
 	{ E1000_RDT(0),	   0x100, 4,  PATTERN_TEST, 0x0000FFFF, 0x0000FFFF },
+	{ E1000_RDT(4),	   0x40, 12,  PATTERN_TEST, 0x0000FFFF, 0x0000FFFF },
 	{ E1000_RXDCTL(0), 0x100, 4,  WRITE_NO_TEST, 0, 0 },
+	{ E1000_RXDCTL(4), 0x40, 12,  WRITE_NO_TEST, 0, 0 },
 	{ E1000_FCRTH,	   0x100, 1,  PATTERN_TEST, 0x0000FFF0, 0x0000FFF0 },
 	{ E1000_FCTTV,	   0x100, 1,  PATTERN_TEST, 0x0000FFFF, 0x0000FFFF },
 	{ E1000_TIPG,	   0x100, 1,  PATTERN_TEST, 0x3FFFFFFF, 0x3FFFFFFF },
 	{ E1000_TDBAL(0),  0x100, 4,  PATTERN_TEST, 0xFFFFFF80, 0xFFFFFFFF },
 	{ E1000_TDBAH(0),  0x100, 4,  PATTERN_TEST, 0xFFFFFFFF, 0xFFFFFFFF },
 	{ E1000_TDLEN(0),  0x100, 4,  PATTERN_TEST, 0x000FFFF0, 0x000FFFFF },
-	{ E1000_TDBAL(4),  0x40, 8,  PATTERN_TEST, 0xFFFFFF80, 0xFFFFFFFF },
-	{ E1000_TDBAH(4),  0x40, 8,  PATTERN_TEST, 0xFFFFFFFF, 0xFFFFFFFF },
-	{ E1000_TDLEN(4),  0x40, 8,  PATTERN_TEST, 0x000FFFF0, 0x000FFFFF },
+	{ E1000_TDBAL(4),  0x40, 12,  PATTERN_TEST, 0xFFFFFF80, 0xFFFFFFFF },
+	{ E1000_TDBAH(4),  0x40, 12,  PATTERN_TEST, 0xFFFFFFFF, 0xFFFFFFFF },
+	{ E1000_TDLEN(4),  0x40, 12,  PATTERN_TEST, 0x000FFFF0, 0x000FFFFF },
 	{ E1000_RCTL,	   0x100, 1,  SET_READ_TEST, 0xFFFFFFFF, 0x00000000 },
 	{ E1000_RCTL, 	   0x100, 1,  SET_READ_TEST, 0x04CFB0FE, 0x003FFFFB },
 	{ E1000_RCTL, 	   0x100, 1,  SET_READ_TEST, 0x04CFB0FE, 0xFFFFFFFF },
@@ -918,12 +921,13 @@ static struct igb_reg_test reg_test_82575[] = {
 static bool reg_pattern_test(struct igb_adapter *adapter, u64 *data,
 			     int reg, u32 mask, u32 write)
 {
+	struct e1000_hw *hw = &adapter->hw;
 	u32 pat, val;
 	u32 _test[] =
 		{0x5A5A5A5A, 0xA5A5A5A5, 0x00000000, 0xFFFFFFFF};
 	for (pat = 0; pat < ARRAY_SIZE(_test); pat++) {
-		writel((_test[pat] & write), (adapter->hw.hw_addr + reg));
-		val = readl(adapter->hw.hw_addr + reg);
+		wr32(reg, (_test[pat] & write));
+		val = rd32(reg);
 		if (val != (_test[pat] & write & mask)) {
 			dev_err(&adapter->pdev->dev, "pattern test reg %04X "
 				"failed: got 0x%08X expected 0x%08X\n",
@@ -938,9 +942,10 @@ static bool reg_pattern_test(struct igb_adapter *adapter, u64 *data,
 static bool reg_set_and_check(struct igb_adapter *adapter, u64 *data,
 			      int reg, u32 mask, u32 write)
 {
+	struct e1000_hw *hw = &adapter->hw;
 	u32 val;
-	writel((write & mask), (adapter->hw.hw_addr + reg));
-	val = readl(adapter->hw.hw_addr + reg);
+	wr32(reg, write & mask);
+	val = rd32(reg);
 	if ((write & mask) != (val & mask)) {
 		dev_err(&adapter->pdev->dev, "set/check reg %04X test failed:"
 			" got 0x%08X expected 0x%08X\n", reg,
@@ -1006,12 +1011,14 @@ static int igb_reg_test(struct igb_adapter *adapter, u64 *data)
 		for (i = 0; i < test->array_len; i++) {
 			switch (test->test_type) {
 			case PATTERN_TEST:
-				REG_PATTERN_TEST(test->reg + (i * test->reg_offset),
+				REG_PATTERN_TEST(test->reg +
+						(i * test->reg_offset),
 						test->mask,
 						test->write);
 				break;
 			case SET_READ_TEST:
-				REG_SET_AND_CHECK(test->reg + (i * test->reg_offset),
+				REG_SET_AND_CHECK(test->reg +
+						(i * test->reg_offset),
 						test->mask,
 						test->write);
 				break;
@@ -1083,16 +1090,17 @@ static int igb_intr_test(struct igb_adapter *adapter, u64 *data)
 {
 	struct e1000_hw *hw = &adapter->hw;
 	struct net_device *netdev = adapter->netdev;
-	u32 mask, i = 0, shared_int = true;
+	u32 mask, ics_mask, i = 0, shared_int = true;
 	u32 irq = adapter->pdev->irq;
 
 	*data = 0;
 
 	/* Hook up test interrupt handler just for this test */
-	if (adapter->msix_entries) {
+	if (adapter->msix_entries)
 		/* NOTE: we don't test MSI-X interrupts here, yet */
 		return 0;
-	} else if (adapter->flags & IGB_FLAG_HAS_MSI) {
+
+	if (adapter->flags & IGB_FLAG_HAS_MSI) {
 		shared_int = false;
 		if (request_irq(irq, &igb_test_intr, 0, netdev->name, netdev)) {
 			*data = 1;
@@ -1108,16 +1116,31 @@ static int igb_intr_test(struct igb_adapter *adapter, u64 *data)
 	}
 	dev_info(&adapter->pdev->dev, "testing %s interrupt\n",
 		(shared_int ? "shared" : "unshared"));
-
 	/* Disable all the interrupts */
 	wr32(E1000_IMC, 0xFFFFFFFF);
 	msleep(10);
 
+	/* Define all writable bits for ICS */
+	switch(hw->mac.type) {
+	case e1000_82575:
+		ics_mask = 0x37F47EDD;
+		break;
+	case e1000_82576:
+		ics_mask = 0x77D4FBFD;
+		break;
+	default:
+		ics_mask = 0x7FFFFFFF;
+		break;
+	}
+
 	/* Test each interrupt */
-	for (; i < 10; i++) {
+	for (; i < 31; i++) {
 		/* Interrupt to test */
 		mask = 1 << i;
 
+		if (!(mask & ics_mask))
+			continue;
+
 		if (!shared_int) {
 			/* Disable the interrupt to be reported in
 			 * the cause register and then force the same
@@ -1126,8 +1149,12 @@ static int igb_intr_test(struct igb_adapter *adapter, u64 *data)
 			 * test failed.
 			 */
 			adapter->test_icr = 0;
-			wr32(E1000_IMC, ~mask & 0x00007FFF);
-			wr32(E1000_ICS, ~mask & 0x00007FFF);
+
+			/* Flush any pending interrupts */
+			wr32(E1000_ICR, ~0);
+
+			wr32(E1000_IMC, mask);
+			wr32(E1000_ICS, mask);
 			msleep(10);
 
 			if (adapter->test_icr & mask) {
@@ -1143,6 +1170,10 @@ static int igb_intr_test(struct igb_adapter *adapter, u64 *data)
 		 * test failed.
 		 */
 		adapter->test_icr = 0;
+
+		/* Flush any pending interrupts */
+		wr32(E1000_ICR, ~0);
+
 		wr32(E1000_IMS, mask);
 		wr32(E1000_ICS, mask);
 		msleep(10);
@@ -1160,11 +1191,15 @@ static int igb_intr_test(struct igb_adapter *adapter, u64 *data)
 			 * test failed.
 			 */
 			adapter->test_icr = 0;
-			wr32(E1000_IMC, ~mask & 0x00007FFF);
-			wr32(E1000_ICS, ~mask & 0x00007FFF);
+
+			/* Flush any pending interrupts */
+			wr32(E1000_ICR, ~0);
+
+			wr32(E1000_IMC, ~mask);
+			wr32(E1000_ICS, ~mask);
 			msleep(10);
 
-			if (adapter->test_icr) {
+			if (adapter->test_icr & mask) {
 				*data = 5;
 				break;
 			}
@@ -1172,7 +1207,7 @@ static int igb_intr_test(struct igb_adapter *adapter, u64 *data)
 	}
 
 	/* Disable all the interrupts */
-	wr32(E1000_IMC, 0xFFFFFFFF);
+	wr32(E1000_IMC, ~0);
 	msleep(10);
 
 	/* Unhook test interrupt handler */
@@ -1450,7 +1485,7 @@ static int igb_setup_loopback_test(struct igb_adapter *adapter)
 			 E1000_CTRL_TFCE |
 			 E1000_CTRL_LRST);
 		reg |= E1000_CTRL_SLU |
-		       E1000_CTRL_FD; 
+		       E1000_CTRL_FD;
 		wr32(E1000_CTRL, reg);
 
 		/* Unset switch control to serdes energy detect */
-- 
cgit v1.2.3-70-g09d2


From dda0e0834c839c0e4b1717cbe9c22c35ca935809 Mon Sep 17 00:00:00 2001
From: Alexander Duyck <alexander.h.duyck@intel.com>
Date: Fri, 6 Feb 2009 23:19:08 +0000
Subject: igb: add counter for dma out of sync errors

Add a counter for dma out of sync errors reported via interrupt.

Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 drivers/net/igb/e1000_defines.h |  6 +++++-
 drivers/net/igb/e1000_hw.h      |  1 +
 drivers/net/igb/igb_ethtool.c   |  1 +
 drivers/net/igb/igb_main.c      | 19 +++++++++++++++++--
 4 files changed, 24 insertions(+), 3 deletions(-)

(limited to 'drivers/net/igb')

diff --git a/drivers/net/igb/e1000_defines.h b/drivers/net/igb/e1000_defines.h
index 54a14892338..bff62dd8431 100644
--- a/drivers/net/igb/e1000_defines.h
+++ b/drivers/net/igb/e1000_defines.h
@@ -413,6 +413,7 @@
 /* LAN connected device generates an interrupt */
 #define E1000_ICR_PHYINT        0x00001000
 #define E1000_ICR_EPRST         0x00100000 /* ME handware reset occurs */
+#define E1000_ICR_DOUTSYNC      0x10000000 /* NIC DMA out of sync */
 
 /* Extended Interrupt Cause Read */
 #define E1000_EICR_RX_QUEUE0    0x00000001 /* Rx Queue 0 Interrupt */
@@ -441,7 +442,8 @@
     E1000_IMS_TXDW   |    \
     E1000_IMS_RXDMT0 |    \
     E1000_IMS_RXSEQ  |    \
-    E1000_IMS_LSC)
+    E1000_IMS_LSC    |    \
+    E1000_IMS_DOUTSYNC)
 
 /* Interrupt Mask Set */
 #define E1000_IMS_TXDW      E1000_ICR_TXDW      /* Transmit desc written back */
@@ -449,6 +451,7 @@
 #define E1000_IMS_RXSEQ     E1000_ICR_RXSEQ     /* rx sequence error */
 #define E1000_IMS_RXDMT0    E1000_ICR_RXDMT0    /* rx desc min. threshold */
 #define E1000_IMS_RXT0      E1000_ICR_RXT0      /* rx timer intr */
+#define E1000_IMS_DOUTSYNC  E1000_ICR_DOUTSYNC /* NIC DMA out of sync */
 
 /* Extended Interrupt Mask Set */
 #define E1000_EIMS_TCP_TIMER    E1000_EICR_TCP_TIMER /* TCP Timer */
@@ -457,6 +460,7 @@
 /* Interrupt Cause Set */
 #define E1000_ICS_LSC       E1000_ICR_LSC       /* Link Status Change */
 #define E1000_ICS_RXDMT0    E1000_ICR_RXDMT0    /* rx desc min. threshold */
+#define E1000_ICS_DOUTSYNC  E1000_ICR_DOUTSYNC /* NIC DMA out of sync */
 
 /* Extended Interrupt Cause Set */
 
diff --git a/drivers/net/igb/e1000_hw.h b/drivers/net/igb/e1000_hw.h
index acb42a21e95..62ccd495356 100644
--- a/drivers/net/igb/e1000_hw.h
+++ b/drivers/net/igb/e1000_hw.h
@@ -359,6 +359,7 @@ struct e1000_hw_stats {
 	u64 lenerrs;
 	u64 scvpc;
 	u64 hrmpc;
+	u64 doosync;
 };
 
 struct e1000_phy_stats {
diff --git a/drivers/net/igb/igb_ethtool.c b/drivers/net/igb/igb_ethtool.c
index 33c23a117fe..de09430ce7f 100644
--- a/drivers/net/igb/igb_ethtool.c
+++ b/drivers/net/igb/igb_ethtool.c
@@ -88,6 +88,7 @@ static const struct igb_stats igb_gstrings_stats[] = {
 	{ "rx_long_byte_count", IGB_STAT(stats.gorc) },
 	{ "rx_csum_offload_good", IGB_STAT(hw_csum_good) },
 	{ "rx_csum_offload_errors", IGB_STAT(hw_csum_err) },
+	{ "tx_dma_out_of_sync", IGB_STAT(stats.doosync) },
 	{ "alloc_rx_buff_failed", IGB_STAT(alloc_rx_buff_failed) },
 	{ "tx_smbus", IGB_STAT(stats.mgptc) },
 	{ "rx_smbus", IGB_STAT(stats.mgprc) },
diff --git a/drivers/net/igb/igb_main.c b/drivers/net/igb/igb_main.c
index 8c27e0a23df..c05ca3461f6 100644
--- a/drivers/net/igb/igb_main.c
+++ b/drivers/net/igb/igb_main.c
@@ -689,7 +689,7 @@ static void igb_irq_enable(struct igb_adapter *adapter)
 		wr32(E1000_EIAC, adapter->eims_enable_mask);
 		wr32(E1000_EIAM, adapter->eims_enable_mask);
 		wr32(E1000_EIMS, adapter->eims_enable_mask);
-		wr32(E1000_IMS, E1000_IMS_LSC);
+		wr32(E1000_IMS, E1000_IMS_LSC | E1000_IMS_DOUTSYNC);
 	} else {
 		wr32(E1000_IMS, IMS_ENABLE_MASK);
 		wr32(E1000_IAM, IMS_ENABLE_MASK);
@@ -3287,6 +3287,11 @@ static irqreturn_t igb_msix_other(int irq, void *data)
 	u32 icr = rd32(E1000_ICR);
 
 	/* reading ICR causes bit 31 of EICR to be cleared */
+
+	if(icr & E1000_ICR_DOUTSYNC) {
+		/* HW is reporting DMA is out of sync */
+		adapter->stats.doosync++;
+	}
 	if (!(icr & E1000_ICR_LSC))
 		goto no_link_interrupt;
 	hw->mac.get_link_status = 1;
@@ -3295,7 +3300,7 @@ static irqreturn_t igb_msix_other(int irq, void *data)
 		mod_timer(&adapter->watchdog_timer, jiffies + 1);
 	
 no_link_interrupt:
-	wr32(E1000_IMS, E1000_IMS_LSC);
+	wr32(E1000_IMS, E1000_IMS_LSC | E1000_IMS_DOUTSYNC);
 	wr32(E1000_EIMS, adapter->eims_other);
 
 	return IRQ_HANDLED;
@@ -3499,6 +3504,11 @@ static irqreturn_t igb_intr_msi(int irq, void *data)
 
 	igb_write_itr(adapter->rx_ring);
 
+	if(icr & E1000_ICR_DOUTSYNC) {
+		/* HW is reporting DMA is out of sync */
+		adapter->stats.doosync++;
+	}
+
 	if (icr & (E1000_ICR_RXSEQ | E1000_ICR_LSC)) {
 		hw->mac.get_link_status = 1;
 		if (!test_bit(__IGB_DOWN, &adapter->state))
@@ -3534,6 +3544,11 @@ static irqreturn_t igb_intr(int irq, void *data)
 	if (!(icr & E1000_ICR_INT_ASSERTED))
 		return IRQ_NONE;
 
+	if(icr & E1000_ICR_DOUTSYNC) {
+		/* HW is reporting DMA is out of sync */
+		adapter->stats.doosync++;
+	}
+
 	eicr = rd32(E1000_EICR);
 
 	if (icr & (E1000_ICR_RXSEQ | E1000_ICR_LSC)) {
-- 
cgit v1.2.3-70-g09d2


From eebbbdba5eb44406061e4dff130257b654773d3f Mon Sep 17 00:00:00 2001
From: Alexander Duyck <alexander.h.duyck@intel.com>
Date: Fri, 6 Feb 2009 23:19:29 +0000
Subject: igb: cleanup igb_netpoll to be more friendly with napi & GRO

This patch cleans up igb_netpoll so that it is more friendly with both the
current napi and newly introduced GRO features.

Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 drivers/net/igb/igb.h      |  5 ++---
 drivers/net/igb/igb_main.c | 37 +++++++++++++++++++++----------------
 2 files changed, 23 insertions(+), 19 deletions(-)

(limited to 'drivers/net/igb')

diff --git a/drivers/net/igb/igb.h b/drivers/net/igb/igb.h
index 88fdfe4961d..0519ae408af 100644
--- a/drivers/net/igb/igb.h
+++ b/drivers/net/igb/igb.h
@@ -280,9 +280,8 @@ struct igb_adapter {
 #define IGB_FLAG_HAS_MSI           (1 << 0)
 #define IGB_FLAG_MSI_ENABLE        (1 << 1)
 #define IGB_FLAG_DCA_ENABLED       (1 << 2)
-#define IGB_FLAG_IN_NETPOLL        (1 << 3)
-#define IGB_FLAG_QUAD_PORT_A       (1 << 4)
-#define IGB_FLAG_NEED_CTX_IDX      (1 << 5)
+#define IGB_FLAG_QUAD_PORT_A       (1 << 3)
+#define IGB_FLAG_NEED_CTX_IDX      (1 << 4)
 
 enum e1000_state_t {
 	__IGB_TESTING,
diff --git a/drivers/net/igb/igb_main.c b/drivers/net/igb/igb_main.c
index c05ca3461f6..3bf560f0fde 100644
--- a/drivers/net/igb/igb_main.c
+++ b/drivers/net/igb/igb_main.c
@@ -404,7 +404,7 @@ static void igb_configure_msix(struct igb_adapter *adapter)
 		/* Turn on MSI-X capability first, or our settings
 		 * won't stick.  And it will take days to debug. */
 		wr32(E1000_GPIE, E1000_GPIE_MSIX_MODE |
-				   E1000_GPIE_PBA | E1000_GPIE_EIAME | 
+				   E1000_GPIE_PBA | E1000_GPIE_EIAME |
  				   E1000_GPIE_NSICR);
 
 	for (i = 0; i < adapter->num_tx_queues; i++) {
@@ -1629,7 +1629,7 @@ static int igb_setup_all_tx_resources(struct igb_adapter *adapter)
 	for (i = 0; i < IGB_MAX_TX_QUEUES; i++) {
 		r_idx = i % adapter->num_tx_queues;
 		adapter->multi_tx_table[i] = &adapter->tx_ring[r_idx];
-	}	
+	}
 	return err;
 }
 
@@ -3298,7 +3298,7 @@ static irqreturn_t igb_msix_other(int irq, void *data)
 	/* guard against interrupt when we're going down */
 	if (!test_bit(__IGB_DOWN, &adapter->state))
 		mod_timer(&adapter->watchdog_timer, jiffies + 1);
-	
+
 no_link_interrupt:
 	wr32(E1000_IMS, E1000_IMS_LSC | E1000_IMS_DOUTSYNC);
 	wr32(E1000_EIMS, adapter->eims_other);
@@ -3751,7 +3751,7 @@ static bool igb_clean_tx_irq(struct igb_ring *tx_ring)
 
 /**
  * igb_receive_skb - helper function to handle rx indications
- * @ring: pointer to receive ring receving this packet 
+ * @ring: pointer to receive ring receving this packet
  * @status: descriptor status field as written by hardware
  * @vlan: descriptor vlan field as written by hardware (no le/be conversion)
  * @skb: pointer to sk_buff to be indicated to stack
@@ -4378,22 +4378,27 @@ static void igb_shutdown(struct pci_dev *pdev)
 static void igb_netpoll(struct net_device *netdev)
 {
 	struct igb_adapter *adapter = netdev_priv(netdev);
+	struct e1000_hw *hw = &adapter->hw;
 	int i;
-	int work_done = 0;
 
-	igb_irq_disable(adapter);
-	adapter->flags |= IGB_FLAG_IN_NETPOLL;
-
-	for (i = 0; i < adapter->num_tx_queues; i++)
-		igb_clean_tx_irq(&adapter->tx_ring[i]);
+	if (!adapter->msix_entries) {
+		igb_irq_disable(adapter);
+		napi_schedule(&adapter->rx_ring[0].napi);
+		return;
+	}
 
-	for (i = 0; i < adapter->num_rx_queues; i++)
-		igb_clean_rx_irq_adv(&adapter->rx_ring[i],
-				     &work_done,
-				     adapter->rx_ring[i].napi.weight);
+	for (i = 0; i < adapter->num_tx_queues; i++) {
+		struct igb_ring *tx_ring = &adapter->tx_ring[i];
+		wr32(E1000_EIMC, tx_ring->eims_value);
+		igb_clean_tx_irq(tx_ring);
+		wr32(E1000_EIMS, tx_ring->eims_value);
+	}
 
-	adapter->flags &= ~IGB_FLAG_IN_NETPOLL;
-	igb_irq_enable(adapter);
+	for (i = 0; i < adapter->num_rx_queues; i++) {
+		struct igb_ring *rx_ring = &adapter->rx_ring[i];
+		wr32(E1000_EIMC, rx_ring->eims_value);
+		napi_schedule(&rx_ring->napi);
+	}
 }
 #endif /* CONFIG_NET_POLL_CONTROLLER */
 
-- 
cgit v1.2.3-70-g09d2


From 4b1a9877364599fe57f263597821dab6bd86f3b9 Mon Sep 17 00:00:00 2001
From: Alexander Duyck <alexander.h.duyck@intel.com>
Date: Fri, 6 Feb 2009 23:19:50 +0000
Subject: igb: remove redundant timer updates and cleanup watchdog_task

The igb watchdog task is modifying the watchdog timer twice duing a single
run.  It only needs to be called once to reschedule itself for 2 seconds from
the last time it ran.

In addition I removed the allocation of the mac_info structure since it is
only called twice and is easier to access via the e1000_hw struct.

Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 drivers/net/igb/igb_main.c | 10 +++++-----
 1 file changed, 5 insertions(+), 5 deletions(-)

(limited to 'drivers/net/igb')

diff --git a/drivers/net/igb/igb_main.c b/drivers/net/igb/igb_main.c
index 3bf560f0fde..cbb38585633 100644
--- a/drivers/net/igb/igb_main.c
+++ b/drivers/net/igb/igb_main.c
@@ -2314,13 +2314,10 @@ static void igb_watchdog_task(struct work_struct *work)
 	struct igb_adapter *adapter = container_of(work,
 					struct igb_adapter, watchdog_task);
 	struct e1000_hw *hw = &adapter->hw;
-
 	struct net_device *netdev = adapter->netdev;
 	struct igb_ring *tx_ring = adapter->tx_ring;
-	struct e1000_mac_info *mac = &adapter->hw.mac;
 	u32 link;
 	u32 eics = 0;
-	s32 ret_val;
 	int i;
 
 	link = igb_has_link(adapter);
@@ -2365,6 +2362,7 @@ static void igb_watchdog_task(struct work_struct *work)
 			netif_carrier_on(netdev);
 			netif_tx_wake_all_queues(netdev);
 
+			/* link state has changed, schedule phy info update */
 			if (!test_bit(__IGB_DOWN, &adapter->state))
 				mod_timer(&adapter->phy_info_timer,
 					  round_jiffies(jiffies + 2 * HZ));
@@ -2378,6 +2376,8 @@ static void igb_watchdog_task(struct work_struct *work)
 			       netdev->name);
 			netif_carrier_off(netdev);
 			netif_tx_stop_all_queues(netdev);
+
+			/* link state has changed, schedule phy info update */
 			if (!test_bit(__IGB_DOWN, &adapter->state))
 				mod_timer(&adapter->phy_info_timer,
 					  round_jiffies(jiffies + 2 * HZ));
@@ -2387,9 +2387,9 @@ static void igb_watchdog_task(struct work_struct *work)
 link_up:
 	igb_update_stats(adapter);
 
-	mac->tx_packet_delta = adapter->stats.tpt - adapter->tpt_old;
+	hw->mac.tx_packet_delta = adapter->stats.tpt - adapter->tpt_old;
 	adapter->tpt_old = adapter->stats.tpt;
-	mac->collision_delta = adapter->stats.colc - adapter->colc_old;
+	hw->mac.collision_delta = adapter->stats.colc - adapter->colc_old;
 	adapter->colc_old = adapter->stats.colc;
 
 	adapter->gorc = adapter->stats.gorc - adapter->gorc_old;
-- 
cgit v1.2.3-70-g09d2


From 8a900862a2402565564ddcc3c6ecefb1c239d7e1 Mon Sep 17 00:00:00 2001
From: Alexander Duyck <alexander.h.duyck@intel.com>
Date: Fri, 6 Feb 2009 23:20:10 +0000
Subject: igb: rename igb_update_mc_addr_list_82575 to not include the 82575

There isn't much point in having the _82575 hanging off the end of this
function since there aren't any other version of this function running
around within this driver.  This also allows for a bit of whitespace
cleanup due to a shorter function name.

Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 drivers/net/igb/e1000_82575.c | 8 ++++----
 drivers/net/igb/e1000_82575.h | 2 +-
 drivers/net/igb/igb_main.c    | 7 +++----
 3 files changed, 8 insertions(+), 9 deletions(-)

(limited to 'drivers/net/igb')

diff --git a/drivers/net/igb/e1000_82575.c b/drivers/net/igb/e1000_82575.c
index 527d4c8e53f..68a9822f405 100644
--- a/drivers/net/igb/e1000_82575.c
+++ b/drivers/net/igb/e1000_82575.c
@@ -787,7 +787,7 @@ static void igb_init_rx_addrs_82575(struct e1000_hw *hw, u16 rar_count)
 }
 
 /**
- *  igb_update_mc_addr_list_82575 - Update Multicast addresses
+ *  igb_update_mc_addr_list - Update Multicast addresses
  *  @hw: pointer to the HW structure
  *  @mc_addr_list: array of multicast addresses to program
  *  @mc_addr_count: number of multicast addresses to program
@@ -799,9 +799,9 @@ static void igb_init_rx_addrs_82575(struct e1000_hw *hw, u16 rar_count)
  *  The parameter rar_count will usually be hw->mac.rar_entry_count
  *  unless there are workarounds that change this.
  **/
-void igb_update_mc_addr_list_82575(struct e1000_hw *hw,
-                                   u8 *mc_addr_list, u32 mc_addr_count,
-                                   u32 rar_used_count, u32 rar_count)
+void igb_update_mc_addr_list(struct e1000_hw *hw,
+                             u8 *mc_addr_list, u32 mc_addr_count,
+                             u32 rar_used_count, u32 rar_count)
 {
 	u32 hash_value;
 	u32 i;
diff --git a/drivers/net/igb/e1000_82575.h b/drivers/net/igb/e1000_82575.h
index c1928b5efe1..e0a376fa28a 100644
--- a/drivers/net/igb/e1000_82575.h
+++ b/drivers/net/igb/e1000_82575.h
@@ -28,7 +28,7 @@
 #ifndef _E1000_82575_H_
 #define _E1000_82575_H_
 
-void igb_update_mc_addr_list_82575(struct e1000_hw*, u8*, u32, u32, u32);
+void igb_update_mc_addr_list(struct e1000_hw*, u8*, u32, u32, u32);
 extern void igb_shutdown_fiber_serdes_link_82575(struct e1000_hw *hw);
 extern void igb_rx_fifo_flush_82575(struct e1000_hw *hw);
 
diff --git a/drivers/net/igb/igb_main.c b/drivers/net/igb/igb_main.c
index cbb38585633..2d169a45c42 100644
--- a/drivers/net/igb/igb_main.c
+++ b/drivers/net/igb/igb_main.c
@@ -2227,8 +2227,8 @@ static void igb_set_multi(struct net_device *netdev)
 
 	if (!netdev->mc_count) {
 		/* nothing to program, so clear mc list */
-		igb_update_mc_addr_list_82575(hw, NULL, 0, 1,
-					  mac->rar_entry_count);
+		igb_update_mc_addr_list(hw, NULL, 0, 1,
+					mac->rar_entry_count);
 		return;
 	}
 
@@ -2245,8 +2245,7 @@ static void igb_set_multi(struct net_device *netdev)
 		memcpy(mta_list + (i*ETH_ALEN), mc_ptr->dmi_addr, ETH_ALEN);
 		mc_ptr = mc_ptr->next;
 	}
-	igb_update_mc_addr_list_82575(hw, mta_list, i, 1,
-	                              mac->rar_entry_count);
+	igb_update_mc_addr_list(hw, mta_list, i, 1, mac->rar_entry_count);
 	kfree(mta_list);
 }
 
-- 
cgit v1.2.3-70-g09d2


From 28b0759c224cad4ae8f5ed47f5af862dd2d1e1ed Mon Sep 17 00:00:00 2001
From: Alexander Duyck <alexander.h.duyck@intel.com>
Date: Fri, 6 Feb 2009 23:20:31 +0000
Subject: igb: remove unnecessary adapter->hw calls when just hw-> will do.

There were several spots in the code making calls to adapter->hw when they
could have just been accessing hw-> directly.  I cleaned up the spots where
this was visibly apparent.

Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 drivers/net/igb/igb_main.c | 21 ++++++++++-----------
 1 file changed, 10 insertions(+), 11 deletions(-)

(limited to 'drivers/net/igb')

diff --git a/drivers/net/igb/igb_main.c b/drivers/net/igb/igb_main.c
index 2d169a45c42..e3f521ccf9d 100644
--- a/drivers/net/igb/igb_main.c
+++ b/drivers/net/igb/igb_main.c
@@ -1096,8 +1096,8 @@ static int __devinit igb_probe(struct pci_dev *pdev,
 	mmio_len = pci_resource_len(pdev, 0);
 
 	err = -EIO;
-	adapter->hw.hw_addr = ioremap(mmio_start, mmio_len);
-	if (!adapter->hw.hw_addr)
+	hw->hw_addr = ioremap(mmio_start, mmio_len);
+	if (!hw->hw_addr)
 		goto err_ioremap;
 
 	netdev->netdev_ops = &igb_netdev_ops;
@@ -1357,9 +1357,7 @@ static void __devexit igb_remove(struct pci_dev *pdev)
 {
 	struct net_device *netdev = pci_get_drvdata(pdev);
 	struct igb_adapter *adapter = netdev_priv(netdev);
-#ifdef CONFIG_IGB_DCA
 	struct e1000_hw *hw = &adapter->hw;
-#endif
 	int err;
 
 	/* flush_scheduled work may reschedule our watchdog task, so
@@ -1392,9 +1390,9 @@ static void __devexit igb_remove(struct pci_dev *pdev)
 
 	igb_free_queues(adapter);
 
-	iounmap(adapter->hw.hw_addr);
-	if (adapter->hw.flash_address)
-		iounmap(adapter->hw.flash_address);
+	iounmap(hw->hw_addr);
+	if (hw->flash_address)
+		iounmap(hw->flash_address);
 	pci_release_selected_regions(pdev, pci_select_bars(pdev,
 	                             IORESOURCE_MEM));
 
@@ -1784,7 +1782,7 @@ static void igb_setup_rctl(struct igb_adapter *adapter)
 	rctl &= ~(E1000_RCTL_LBM_TCVR | E1000_RCTL_LBM_MAC);
 
 	rctl |= E1000_RCTL_EN | E1000_RCTL_BAM | E1000_RCTL_RDMTS_HALF |
-		(adapter->hw.mac.mc_filter_type << E1000_RCTL_MO_SHIFT);
+		(hw->mac.mc_filter_type << E1000_RCTL_MO_SHIFT);
 
 	/*
 	 * enable stripping of CRC. It's unlikely this will break BMC
@@ -2176,15 +2174,16 @@ static void igb_clean_all_rx_rings(struct igb_adapter *adapter)
 static int igb_set_mac(struct net_device *netdev, void *p)
 {
 	struct igb_adapter *adapter = netdev_priv(netdev);
+	struct e1000_hw *hw = &adapter->hw;
 	struct sockaddr *addr = p;
 
 	if (!is_valid_ether_addr(addr->sa_data))
 		return -EADDRNOTAVAIL;
 
 	memcpy(netdev->dev_addr, addr->sa_data, netdev->addr_len);
-	memcpy(adapter->hw.mac.addr, addr->sa_data, netdev->addr_len);
+	memcpy(hw->mac.addr, addr->sa_data, netdev->addr_len);
 
-	adapter->hw.mac.ops.rar_set(&adapter->hw, adapter->hw.mac.addr, 0);
+	hw->mac.ops.rar_set(hw, hw->mac.addr, 0);
 
 	return 0;
 }
@@ -4140,7 +4139,7 @@ static void igb_vlan_rx_add_vid(struct net_device *netdev, u16 vid)
 	struct e1000_hw *hw = &adapter->hw;
 	u32 vfta, index;
 
-	if ((adapter->hw.mng_cookie.status &
+	if ((hw->mng_cookie.status &
 	     E1000_MNG_DHCP_COOKIE_STATUS_VLAN) &&
 	    (vid == adapter->mng_vlan_id))
 		return;
-- 
cgit v1.2.3-70-g09d2


From 4a3c6433e48592f260278966742a99e0d77de3cc Mon Sep 17 00:00:00 2001
From: Alexander Duyck <alexander.h.duyck@intel.com>
Date: Fri, 6 Feb 2009 23:20:49 +0000
Subject: igb: don't read eicr when responding to legacy interrupts

The interrupt handler was reading eicr and then doing nothing with the
result.  I have removed the variable and the register read since they
provide no value to the legacy interrupt handler.

Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 drivers/net/igb/igb_main.c | 5 +----
 1 file changed, 1 insertion(+), 4 deletions(-)

(limited to 'drivers/net/igb')

diff --git a/drivers/net/igb/igb_main.c b/drivers/net/igb/igb_main.c
index e3f521ccf9d..56c14557cea 100644
--- a/drivers/net/igb/igb_main.c
+++ b/drivers/net/igb/igb_main.c
@@ -3519,7 +3519,7 @@ static irqreturn_t igb_intr_msi(int irq, void *data)
 }
 
 /**
- * igb_intr - Interrupt Handler
+ * igb_intr - Legacy Interrupt Handler
  * @irq: interrupt number
  * @data: pointer to a network interface device structure
  **/
@@ -3531,7 +3531,6 @@ static irqreturn_t igb_intr(int irq, void *data)
 	/* Interrupt Auto-Mask...upon reading ICR, interrupts are masked.  No
 	 * need for the IMC write */
 	u32 icr = rd32(E1000_ICR);
-	u32 eicr = 0;
 	if (!icr)
 		return IRQ_NONE;  /* Not our interrupt */
 
@@ -3547,8 +3546,6 @@ static irqreturn_t igb_intr(int irq, void *data)
 		adapter->stats.doosync++;
 	}
 
-	eicr = rd32(E1000_EICR);
-
 	if (icr & (E1000_ICR_RXSEQ | E1000_ICR_LSC)) {
 		hw->mac.get_link_status = 1;
 		/* guard against interrupt when we're going down */
-- 
cgit v1.2.3-70-g09d2


From a8564f033efade1b6f027c4bb807cdf8cf5c9570 Mon Sep 17 00:00:00 2001
From: Alexander Duyck <alexander.h.duyck@intel.com>
Date: Fri, 6 Feb 2009 23:21:10 +0000
Subject: igb: move get_hw_control within igb_resume.

Move igb_get_hw_control up so that it is called just after the reset in
igb_resume.  This notifies the HW sooner that the driver is reassuming
control of the device.

Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 drivers/net/igb/igb_main.c | 9 +++++----
 1 file changed, 5 insertions(+), 4 deletions(-)

(limited to 'drivers/net/igb')

diff --git a/drivers/net/igb/igb_main.c b/drivers/net/igb/igb_main.c
index 56c14557cea..accab3f7357 100644
--- a/drivers/net/igb/igb_main.c
+++ b/drivers/net/igb/igb_main.c
@@ -4341,6 +4341,11 @@ static int igb_resume(struct pci_dev *pdev)
 	/* e1000_power_up_phy(adapter); */
 
 	igb_reset(adapter);
+
+	/* let the f/w know that the h/w is now under the control of the
+	 * driver. */
+	igb_get_hw_control(adapter);
+
 	wr32(E1000_WUS, ~0);
 
 	if (netif_running(netdev)) {
@@ -4351,10 +4356,6 @@ static int igb_resume(struct pci_dev *pdev)
 
 	netif_device_attach(netdev);
 
-	/* let the f/w know that the h/w is now under the control of the
-	 * driver. */
-	igb_get_hw_control(adapter);
-
 	return 0;
 }
 #endif
-- 
cgit v1.2.3-70-g09d2


From fa4dfae0ce703976578015902025137d5e268501 Mon Sep 17 00:00:00 2001
From: Alexander Duyck <alexander.h.duyck@intel.com>
Date: Fri, 6 Feb 2009 23:21:31 +0000
Subject: igb: change pba size determination from if to switch statement

As additional hardware is added to the igb driver it is easier to support
the expansion via switch statements instead of using nested ifs.  For
this reason I am changing this to a switch statement.

Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 drivers/net/igb/igb_main.c | 11 +++++++----
 1 file changed, 7 insertions(+), 4 deletions(-)

(limited to 'drivers/net/igb')

diff --git a/drivers/net/igb/igb_main.c b/drivers/net/igb/igb_main.c
index accab3f7357..d27e502097e 100644
--- a/drivers/net/igb/igb_main.c
+++ b/drivers/net/igb/igb_main.c
@@ -888,11 +888,14 @@ void igb_reset(struct igb_adapter *adapter)
 	/* Repartition Pba for greater than 9k mtu
 	 * To take effect CTRL.RST is required.
 	 */
-	if (mac->type != e1000_82576) {
-	pba = E1000_PBA_34K;
-	}
-	else {
+	switch (mac->type) {
+	case e1000_82576:
 		pba = E1000_PBA_64K;
+		break;
+	case e1000_82575:
+	default:
+		pba = E1000_PBA_34K;
+		break;
 	}
 
 	if ((adapter->max_frame_size > ETH_FRAME_LEN + ETH_FCS_LEN) &&
-- 
cgit v1.2.3-70-g09d2


From 8675737a9c1bf6c295461efc64898359398e1c82 Mon Sep 17 00:00:00 2001
From: Alexander Duyck <alexander.h.duyck@intel.com>
Date: Fri, 6 Feb 2009 23:21:51 +0000
Subject: igb: remove disable_av variable from mac_info struct

The disable_av variable is never used by the driver and provides no value as
it is likely a leftover debugging variable.  I have removed it and replaced
the one spot that checked for it with a check for a valid address.

Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 drivers/net/igb/e1000_hw.h  | 1 -
 drivers/net/igb/e1000_mac.c | 3 ++-
 2 files changed, 2 insertions(+), 2 deletions(-)

(limited to 'drivers/net/igb')

diff --git a/drivers/net/igb/e1000_hw.h b/drivers/net/igb/e1000_hw.h
index 62ccd495356..6d1564f4383 100644
--- a/drivers/net/igb/e1000_hw.h
+++ b/drivers/net/igb/e1000_hw.h
@@ -484,7 +484,6 @@ struct e1000_mac_info {
 	bool asf_firmware_present;
 	bool autoneg;
 	bool autoneg_failed;
-	bool disable_av;
 	bool disable_hw_init_bits;
 	bool get_link_status;
 	bool ifs_params_forced;
diff --git a/drivers/net/igb/e1000_mac.c b/drivers/net/igb/e1000_mac.c
index 6682206750d..e5d23e08650 100644
--- a/drivers/net/igb/e1000_mac.c
+++ b/drivers/net/igb/e1000_mac.c
@@ -200,7 +200,8 @@ void igb_rar_set(struct e1000_hw *hw, u8 *addr, u32 index)
 
 	rar_high = ((u32) addr[4] | ((u32) addr[5] << 8));
 
-	if (!hw->mac.disable_av)
+	/* If MAC address zero, no need to set the AV bit */
+	if (rar_low || rar_high)
 		rar_high |= E1000_RAH_AV;
 
 	wr32(E1000_RAL(index), rar_low);
-- 
cgit v1.2.3-70-g09d2


From 450c87c8d28aeaf83889389ceeb01457c1a6f3e9 Mon Sep 17 00:00:00 2001
From: Alexander Duyck <alexander.h.duyck@intel.com>
Date: Fri, 6 Feb 2009 23:22:11 +0000
Subject: igb: remove redundant count set and err_hw_init

Remove the setting of ring->count variables from igb_probe as they are
duplicating the same configuration that is done igb_alloc_queues.

Remove the err_hw_init tag as it can be replaced by err_sw_init.

Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 drivers/net/igb/igb_main.c | 15 ++++-----------
 1 file changed, 4 insertions(+), 11 deletions(-)

(limited to 'drivers/net/igb')

diff --git a/drivers/net/igb/igb_main.c b/drivers/net/igb/igb_main.c
index d27e502097e..3b79ad8be53 100644
--- a/drivers/net/igb/igb_main.c
+++ b/drivers/net/igb/igb_main.c
@@ -1016,7 +1016,7 @@ static int __devinit igb_probe(struct pci_dev *pdev,
 	struct pci_dev *us_dev;
 	const struct e1000_info *ei = igb_info_tbl[ent->driver_data];
 	unsigned long mmio_start, mmio_len;
-	int i, err, pci_using_dac, pos;
+	int err, pci_using_dac, pos;
 	u16 eeprom_data = 0, state = 0;
 	u16 eeprom_apme_mask = IGB_EEPROM_APME;
 	u32 part_num;
@@ -1128,8 +1128,9 @@ static int __devinit igb_probe(struct pci_dev *pdev,
 	/* Initialize skew-specific constants */
 	err = ei->get_invariants(hw);
 	if (err)
-		goto err_hw_init;
+		goto err_sw_init;
 
+	/* setup the private structure */
 	err = igb_sw_init(adapter);
 	if (err)
 		goto err_sw_init;
@@ -1219,14 +1220,7 @@ static int __devinit igb_probe(struct pci_dev *pdev,
 	INIT_WORK(&adapter->reset_task, igb_reset_task);
 	INIT_WORK(&adapter->watchdog_task, igb_watchdog_task);
 
-	/* Initialize link & ring properties that are user-changeable */
-	adapter->tx_ring->count = 256;
-	for (i = 0; i < adapter->num_tx_queues; i++)
-		adapter->tx_ring[i].count = adapter->tx_ring->count;
-	adapter->rx_ring->count = 256;
-	for (i = 0; i < adapter->num_rx_queues; i++)
-		adapter->rx_ring[i].count = adapter->rx_ring->count;
-
+	/* Initialize link properties that are user-changeable */
 	adapter->fc_autoneg = true;
 	hw->mac.autoneg = true;
 	hw->phy.autoneg_advertised = 0x2f;
@@ -1334,7 +1328,6 @@ err_eeprom:
 
 	igb_free_queues(adapter);
 err_sw_init:
-err_hw_init:
 	iounmap(hw->hw_addr);
 err_ioremap:
 	free_netdev(netdev);
-- 
cgit v1.2.3-70-g09d2


From 04fe63583d4648c0378a58afc0de89b640d822ef Mon Sep 17 00:00:00 2001
From: Alexander Duyck <alexander.h.duyck@intel.com>
Date: Fri, 6 Feb 2009 23:22:32 +0000
Subject: igb: update stats before doing reset in igb_down

It was seen with repeated interface up/down testing that there was a large
stray between the stats reported by the queues and the stats reported by the
HW.  It was found to be an issue in that hw stats were being reset without
first being recorded.  This change records the stats before wiping them from
the system via the reset.

Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 drivers/net/igb/igb_main.c | 4 ++++
 1 file changed, 4 insertions(+)

(limited to 'drivers/net/igb')

diff --git a/drivers/net/igb/igb_main.c b/drivers/net/igb/igb_main.c
index 3b79ad8be53..88f135f4b27 100644
--- a/drivers/net/igb/igb_main.c
+++ b/drivers/net/igb/igb_main.c
@@ -858,6 +858,10 @@ void igb_down(struct igb_adapter *adapter)
 
 	netdev->tx_queue_len = adapter->tx_queue_len;
 	netif_carrier_off(netdev);
+
+	/* record the stats before reset*/
+	igb_update_stats(adapter);
+
 	adapter->link_speed = 0;
 	adapter->link_duplex = 0;
 
-- 
cgit v1.2.3-70-g09d2


From 265de4090853e56fb152e4cb0d21e4ec568d561a Mon Sep 17 00:00:00 2001
From: Alexander Duyck <alexander.h.duyck@intel.com>
Date: Fri, 6 Feb 2009 23:22:52 +0000
Subject: igb: fix two minor items found during code review

This patch addresses two minor items I found while cleaning up the igb
driver for our sourceforge version.

The first clears the context index if we don't flag that we need it.

The second item is that eims_other should be used instead of bit defines
when setting all of the EICS bits prior to reset.

Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 drivers/net/igb/igb_main.c | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

(limited to 'drivers/net/igb')

diff --git a/drivers/net/igb/igb_main.c b/drivers/net/igb/igb_main.c
index 88f135f4b27..67138400af8 100644
--- a/drivers/net/igb/igb_main.c
+++ b/drivers/net/igb/igb_main.c
@@ -2771,6 +2771,8 @@ static inline bool igb_tx_csum_adv(struct igb_adapter *adapter,
 		if (adapter->flags & IGB_FLAG_NEED_CTX_IDX)
 			context_desc->mss_l4len_idx =
 				cpu_to_le32(tx_ring->queue_index << 4);
+		else
+			context_desc->mss_l4len_idx = 0;
 
 		buffer_info->time_stamp = jiffies;
 		buffer_info->next_to_watch = i;
@@ -3040,8 +3042,8 @@ static void igb_tx_timeout(struct net_device *netdev)
 	/* Do the reset outside of interrupt context */
 	adapter->tx_timeout_count++;
 	schedule_work(&adapter->reset_task);
-	wr32(E1000_EICS, adapter->eims_enable_mask &
-		~(E1000_EIMS_TCP_TIMER | E1000_EIMS_OTHER));
+	wr32(E1000_EICS,
+	     (adapter->eims_enable_mask & ~adapter->eims_other));
 }
 
 static void igb_reset_task(struct work_struct *work)
-- 
cgit v1.2.3-70-g09d2


From 86d5d38fa1afe2c96f184482d6c6d1a59ee7e2dc Mon Sep 17 00:00:00 2001
From: Alexander Duyck <alexander.h.duyck@intel.com>
Date: Fri, 6 Feb 2009 23:23:12 +0000
Subject: igb: update version number and copyright dates

Update the version number to 1.3.16 and update copyright dates for 2009.

Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 drivers/net/igb/Makefile        | 2 +-
 drivers/net/igb/e1000_82575.c   | 2 +-
 drivers/net/igb/e1000_82575.h   | 2 +-
 drivers/net/igb/e1000_defines.h | 2 +-
 drivers/net/igb/e1000_hw.h      | 2 +-
 drivers/net/igb/e1000_mac.c     | 2 +-
 drivers/net/igb/e1000_mac.h     | 2 +-
 drivers/net/igb/e1000_nvm.c     | 2 +-
 drivers/net/igb/e1000_phy.c     | 2 +-
 drivers/net/igb/e1000_phy.h     | 2 +-
 drivers/net/igb/e1000_regs.h    | 2 +-
 drivers/net/igb/igb.h           | 2 +-
 drivers/net/igb/igb_ethtool.c   | 2 +-
 drivers/net/igb/igb_main.c      | 6 +++---
 14 files changed, 16 insertions(+), 16 deletions(-)

(limited to 'drivers/net/igb')

diff --git a/drivers/net/igb/Makefile b/drivers/net/igb/Makefile
index 1927b3fd6f0..cda3ad51baf 100644
--- a/drivers/net/igb/Makefile
+++ b/drivers/net/igb/Makefile
@@ -1,7 +1,7 @@
 ################################################################################
 #
 # Intel 82575 PCI-Express Ethernet Linux driver
-# Copyright(c) 1999 - 2007 Intel Corporation.
+# Copyright(c) 1999 - 2009 Intel Corporation.
 #
 # This program is free software; you can redistribute it and/or modify it
 # under the terms and conditions of the GNU General Public License,
diff --git a/drivers/net/igb/e1000_82575.c b/drivers/net/igb/e1000_82575.c
index 68a9822f405..7f43e253c56 100644
--- a/drivers/net/igb/e1000_82575.c
+++ b/drivers/net/igb/e1000_82575.c
@@ -1,7 +1,7 @@
 /*******************************************************************************
 
   Intel(R) Gigabit Ethernet Linux driver
-  Copyright(c) 2007 - 2008 Intel Corporation.
+  Copyright(c) 2007-2009 Intel Corporation.
 
   This program is free software; you can redistribute it and/or modify it
   under the terms and conditions of the GNU General Public License,
diff --git a/drivers/net/igb/e1000_82575.h b/drivers/net/igb/e1000_82575.h
index e0a376fa28a..dd50237c8cb 100644
--- a/drivers/net/igb/e1000_82575.h
+++ b/drivers/net/igb/e1000_82575.h
@@ -1,7 +1,7 @@
 /*******************************************************************************
 
   Intel(R) Gigabit Ethernet Linux driver
-  Copyright(c) 2007 - 2008 Intel Corporation.
+  Copyright(c) 2007-2009 Intel Corporation.
 
   This program is free software; you can redistribute it and/or modify it
   under the terms and conditions of the GNU General Public License,
diff --git a/drivers/net/igb/e1000_defines.h b/drivers/net/igb/e1000_defines.h
index bff62dd8431..5342e231c1d 100644
--- a/drivers/net/igb/e1000_defines.h
+++ b/drivers/net/igb/e1000_defines.h
@@ -1,7 +1,7 @@
 /*******************************************************************************
 
   Intel(R) Gigabit Ethernet Linux driver
-  Copyright(c) 2007 - 2008 Intel Corporation.
+  Copyright(c) 2007-2009 Intel Corporation.
 
   This program is free software; you can redistribute it and/or modify it
   under the terms and conditions of the GNU General Public License,
diff --git a/drivers/net/igb/e1000_hw.h b/drivers/net/igb/e1000_hw.h
index 6d1564f4383..bd86cebed37 100644
--- a/drivers/net/igb/e1000_hw.h
+++ b/drivers/net/igb/e1000_hw.h
@@ -1,7 +1,7 @@
 /*******************************************************************************
 
   Intel(R) Gigabit Ethernet Linux driver
-  Copyright(c) 2007 Intel Corporation.
+  Copyright(c) 2007-2009 Intel Corporation.
 
   This program is free software; you can redistribute it and/or modify it
   under the terms and conditions of the GNU General Public License,
diff --git a/drivers/net/igb/e1000_mac.c b/drivers/net/igb/e1000_mac.c
index e5d23e08650..5c249e2ce93 100644
--- a/drivers/net/igb/e1000_mac.c
+++ b/drivers/net/igb/e1000_mac.c
@@ -1,7 +1,7 @@
 /*******************************************************************************
 
   Intel(R) Gigabit Ethernet Linux driver
-  Copyright(c) 2007 Intel Corporation.
+  Copyright(c) 2007-2009 Intel Corporation.
 
   This program is free software; you can redistribute it and/or modify it
   under the terms and conditions of the GNU General Public License,
diff --git a/drivers/net/igb/e1000_mac.h b/drivers/net/igb/e1000_mac.h
index 4ef40d5629d..91461de083f 100644
--- a/drivers/net/igb/e1000_mac.h
+++ b/drivers/net/igb/e1000_mac.h
@@ -1,7 +1,7 @@
 /*******************************************************************************
 
   Intel(R) Gigabit Ethernet Linux driver
-  Copyright(c) 2007 Intel Corporation.
+  Copyright(c) 2007-2009 Intel Corporation.
 
   This program is free software; you can redistribute it and/or modify it
   under the terms and conditions of the GNU General Public License,
diff --git a/drivers/net/igb/e1000_nvm.c b/drivers/net/igb/e1000_nvm.c
index 33798642208..a88bfe2f1e8 100644
--- a/drivers/net/igb/e1000_nvm.c
+++ b/drivers/net/igb/e1000_nvm.c
@@ -1,7 +1,7 @@
 /*******************************************************************************
 
   Intel(R) Gigabit Ethernet Linux driver
-  Copyright(c) 2007 Intel Corporation.
+  Copyright(c) 2007-2009 Intel Corporation.
 
   This program is free software; you can redistribute it and/or modify it
   under the terms and conditions of the GNU General Public License,
diff --git a/drivers/net/igb/e1000_phy.c b/drivers/net/igb/e1000_phy.c
index d73ea71d741..ff0050e5d0b 100644
--- a/drivers/net/igb/e1000_phy.c
+++ b/drivers/net/igb/e1000_phy.c
@@ -1,7 +1,7 @@
 /*******************************************************************************
 
   Intel(R) Gigabit Ethernet Linux driver
-  Copyright(c) 2007 Intel Corporation.
+  Copyright(c) 2007-2009 Intel Corporation.
 
   This program is free software; you can redistribute it and/or modify it
   under the terms and conditions of the GNU General Public License,
diff --git a/drivers/net/igb/e1000_phy.h b/drivers/net/igb/e1000_phy.h
index 7499e5deec4..3228a862031 100644
--- a/drivers/net/igb/e1000_phy.h
+++ b/drivers/net/igb/e1000_phy.h
@@ -1,7 +1,7 @@
 /*******************************************************************************
 
   Intel(R) Gigabit Ethernet Linux driver
-  Copyright(c) 2007 Intel Corporation.
+  Copyright(c) 2007-2009 Intel Corporation.
 
   This program is free software; you can redistribute it and/or modify it
   under the terms and conditions of the GNU General Public License,
diff --git a/drivers/net/igb/e1000_regs.h b/drivers/net/igb/e1000_regs.h
index bdf5d839c4b..5038b73c78e 100644
--- a/drivers/net/igb/e1000_regs.h
+++ b/drivers/net/igb/e1000_regs.h
@@ -1,7 +1,7 @@
 /*******************************************************************************
 
   Intel(R) Gigabit Ethernet Linux driver
-  Copyright(c) 2007 Intel Corporation.
+  Copyright(c) 2007-2009 Intel Corporation.
 
   This program is free software; you can redistribute it and/or modify it
   under the terms and conditions of the GNU General Public License,
diff --git a/drivers/net/igb/igb.h b/drivers/net/igb/igb.h
index 0519ae408af..e507449b3cc 100644
--- a/drivers/net/igb/igb.h
+++ b/drivers/net/igb/igb.h
@@ -1,7 +1,7 @@
 /*******************************************************************************
 
   Intel(R) Gigabit Ethernet Linux driver
-  Copyright(c) 2007 Intel Corporation.
+  Copyright(c) 2007-2009 Intel Corporation.
 
   This program is free software; you can redistribute it and/or modify it
   under the terms and conditions of the GNU General Public License,
diff --git a/drivers/net/igb/igb_ethtool.c b/drivers/net/igb/igb_ethtool.c
index de09430ce7f..bd050b1dab7 100644
--- a/drivers/net/igb/igb_ethtool.c
+++ b/drivers/net/igb/igb_ethtool.c
@@ -1,7 +1,7 @@
 /*******************************************************************************
 
   Intel(R) Gigabit Ethernet Linux driver
-  Copyright(c) 2007 Intel Corporation.
+  Copyright(c) 2007-2009 Intel Corporation.
 
   This program is free software; you can redistribute it and/or modify it
   under the terms and conditions of the GNU General Public License,
diff --git a/drivers/net/igb/igb_main.c b/drivers/net/igb/igb_main.c
index 67138400af8..8bc1ffa04ec 100644
--- a/drivers/net/igb/igb_main.c
+++ b/drivers/net/igb/igb_main.c
@@ -1,7 +1,7 @@
 /*******************************************************************************
 
   Intel(R) Gigabit Ethernet Linux driver
-  Copyright(c) 2007 Intel Corporation.
+  Copyright(c) 2007-2009 Intel Corporation.
 
   This program is free software; you can redistribute it and/or modify it
   under the terms and conditions of the GNU General Public License,
@@ -48,12 +48,12 @@
 #endif
 #include "igb.h"
 
-#define DRV_VERSION "1.2.45-k2"
+#define DRV_VERSION "1.3.16-k2"
 char igb_driver_name[] = "igb";
 char igb_driver_version[] = DRV_VERSION;
 static const char igb_driver_string[] =
 				"Intel(R) Gigabit Ethernet Network Driver";
-static const char igb_copyright[] = "Copyright (c) 2008 Intel Corporation.";
+static const char igb_copyright[] = "Copyright (c) 2007-2009 Intel Corporation.";
 
 static const struct e1000_info *igb_info_tbl[] = {
 	[board_82575] = &e1000_82575_info,
-- 
cgit v1.2.3-70-g09d2


From 593721833d2a3987736467144ad062a709d3a72c Mon Sep 17 00:00:00 2001
From: Jesse Brandeburg <jesse.brandeburg@intel.com>
Date: Fri, 6 Feb 2009 23:23:32 +0000
Subject: igb: remove dead code in transmit routine

Signed-off-by: Jesse Brandeburg <jesse.brandeburg@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 drivers/net/igb/igb_main.c | 3 ---
 1 file changed, 3 deletions(-)

(limited to 'drivers/net/igb')

diff --git a/drivers/net/igb/igb_main.c b/drivers/net/igb/igb_main.c
index 8bc1ffa04ec..f8c2919bcec 100644
--- a/drivers/net/igb/igb_main.c
+++ b/drivers/net/igb/igb_main.c
@@ -2951,12 +2951,9 @@ static int igb_xmit_frame_ring_adv(struct sk_buff *skb,
 	struct igb_adapter *adapter = netdev_priv(netdev);
 	unsigned int first;
 	unsigned int tx_flags = 0;
-	unsigned int len;
 	u8 hdr_len = 0;
 	int tso = 0;
 
-	len = skb_headlen(skb);
-
 	if (test_bit(__IGB_DOWN, &adapter->state)) {
 		dev_kfree_skb_any(skb);
 		return NETDEV_TX_OK;
-- 
cgit v1.2.3-70-g09d2


From 38c845c7648ee354fd1d2fb8a7fbc352f2d3dcc3 Mon Sep 17 00:00:00 2001
From: Patrick Ohly <patrick.ohly@intel.com>
Date: Thu, 12 Feb 2009 05:03:41 +0000
Subject: igb: access to NIC time

Adds the register definitions and code to read the time
register.

Signed-off-by: John Ronciak <john.ronciak@intel.com>
Signed-off-by: Patrick Ohly <patrick.ohly@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 drivers/net/igb/e1000_regs.h |  28 +++++++++++
 drivers/net/igb/igb.h        |   4 ++
 drivers/net/igb/igb_main.c   | 111 +++++++++++++++++++++++++++++++++++++++++++
 3 files changed, 143 insertions(+)

(limited to 'drivers/net/igb')

diff --git a/drivers/net/igb/e1000_regs.h b/drivers/net/igb/e1000_regs.h
index 5038b73c78e..64d95cd71f2 100644
--- a/drivers/net/igb/e1000_regs.h
+++ b/drivers/net/igb/e1000_regs.h
@@ -75,6 +75,34 @@
 #define E1000_FCRTH    0x02168  /* Flow Control Receive Threshold High - RW */
 #define E1000_RDFPCQ(_n)  (0x02430 + (0x4 * (_n)))
 #define E1000_FCRTV    0x02460  /* Flow Control Refresh Timer Value - RW */
+
+/* IEEE 1588 TIMESYNCH */
+#define E1000_TSYNCTXCTL 0x0B614
+#define E1000_TSYNCRXCTL 0x0B620
+#define E1000_TSYNCRXCFG 0x05F50
+
+#define E1000_SYSTIML 0x0B600
+#define E1000_SYSTIMH 0x0B604
+#define E1000_TIMINCA 0x0B608
+
+#define E1000_RXMTRL     0x0B634
+#define E1000_RXSTMPL 0x0B624
+#define E1000_RXSTMPH 0x0B628
+#define E1000_RXSATRL 0x0B62C
+#define E1000_RXSATRH 0x0B630
+
+#define E1000_TXSTMPL 0x0B618
+#define E1000_TXSTMPH 0x0B61C
+
+#define E1000_ETQF0   0x05CB0
+#define E1000_ETQF1   0x05CB4
+#define E1000_ETQF2   0x05CB8
+#define E1000_ETQF3   0x05CBC
+#define E1000_ETQF4   0x05CC0
+#define E1000_ETQF5   0x05CC4
+#define E1000_ETQF6   0x05CC8
+#define E1000_ETQF7   0x05CCC
+
 /* Split and Replication RX Control - RW */
 /*
  * Convenience macros
diff --git a/drivers/net/igb/igb.h b/drivers/net/igb/igb.h
index e507449b3cc..797a9fe107a 100644
--- a/drivers/net/igb/igb.h
+++ b/drivers/net/igb/igb.h
@@ -34,6 +34,8 @@
 #include "e1000_mac.h"
 #include "e1000_82575.h"
 
+#include <linux/clocksource.h>
+
 struct igb_adapter;
 
 /* Interrupt defines */
@@ -251,6 +253,8 @@ struct igb_adapter {
 	struct napi_struct napi;
 	struct pci_dev *pdev;
 	struct net_device_stats net_stats;
+	struct cyclecounter cycles;
+	struct timecounter clock;
 
 	/* structs defined in e1000_hw.h */
 	struct e1000_hw hw;
diff --git a/drivers/net/igb/igb_main.c b/drivers/net/igb/igb_main.c
index f8c2919bcec..8b2ba424509 100644
--- a/drivers/net/igb/igb_main.c
+++ b/drivers/net/igb/igb_main.c
@@ -175,6 +175,54 @@ MODULE_DESCRIPTION("Intel(R) Gigabit Ethernet Network Driver");
 MODULE_LICENSE("GPL");
 MODULE_VERSION(DRV_VERSION);
 
+/**
+ * Scale the NIC clock cycle by a large factor so that
+ * relatively small clock corrections can be added or
+ * substracted at each clock tick. The drawbacks of a
+ * large factor are a) that the clock register overflows
+ * more quickly (not such a big deal) and b) that the
+ * increment per tick has to fit into 24 bits.
+ *
+ * Note that
+ *   TIMINCA = IGB_TSYNC_CYCLE_TIME_IN_NANOSECONDS *
+ *             IGB_TSYNC_SCALE
+ *   TIMINCA += TIMINCA * adjustment [ppm] / 1e9
+ *
+ * The base scale factor is intentionally a power of two
+ * so that the division in %struct timecounter can be done with
+ * a shift.
+ */
+#define IGB_TSYNC_SHIFT (19)
+#define IGB_TSYNC_SCALE (1<<IGB_TSYNC_SHIFT)
+
+/**
+ * The duration of one clock cycle of the NIC.
+ *
+ * @todo This hard-coded value is part of the specification and might change
+ * in future hardware revisions. Add revision check.
+ */
+#define IGB_TSYNC_CYCLE_TIME_IN_NANOSECONDS 16
+
+#if (IGB_TSYNC_SCALE * IGB_TSYNC_CYCLE_TIME_IN_NANOSECONDS) >= (1<<24)
+# error IGB_TSYNC_SCALE and/or IGB_TSYNC_CYCLE_TIME_IN_NANOSECONDS are too large to fit into TIMINCA
+#endif
+
+/**
+ * igb_read_clock - read raw cycle counter (to be used by time counter)
+ */
+static cycle_t igb_read_clock(const struct cyclecounter *tc)
+{
+	struct igb_adapter *adapter =
+		container_of(tc, struct igb_adapter, cycles);
+	struct e1000_hw *hw = &adapter->hw;
+	u64 stamp;
+
+	stamp =  rd32(E1000_SYSTIML);
+	stamp |= (u64)rd32(E1000_SYSTIMH) << 32ULL;
+
+	return stamp;
+}
+
 #ifdef DEBUG
 /**
  * igb_get_hw_dev_name - return device name string
@@ -185,6 +233,29 @@ char *igb_get_hw_dev_name(struct e1000_hw *hw)
 	struct igb_adapter *adapter = hw->back;
 	return adapter->netdev->name;
 }
+
+/**
+ * igb_get_time_str - format current NIC and system time as string
+ */
+static char *igb_get_time_str(struct igb_adapter *adapter,
+			      char buffer[160])
+{
+	cycle_t hw = adapter->cycles.read(&adapter->cycles);
+	struct timespec nic = ns_to_timespec(timecounter_read(&adapter->clock));
+	struct timespec sys;
+	struct timespec delta;
+	getnstimeofday(&sys);
+
+	delta = timespec_sub(nic, sys);
+
+	sprintf(buffer,
+		"NIC %ld.%09lus, SYS %ld.%09lus, NIC-SYS %lds + %09luns",
+		(long)nic.tv_sec, nic.tv_nsec,
+		(long)sys.tv_sec, sys.tv_nsec,
+		(long)delta.tv_sec, delta.tv_nsec);
+
+	return buffer;
+}
 #endif
 
 /**
@@ -1298,6 +1369,46 @@ static int __devinit igb_probe(struct pci_dev *pdev,
 	}
 #endif
 
+	/*
+	 * Initialize hardware timer: we keep it running just in case
+	 * that some program needs it later on.
+	 */
+	memset(&adapter->cycles, 0, sizeof(adapter->cycles));
+	adapter->cycles.read = igb_read_clock;
+	adapter->cycles.mask = CLOCKSOURCE_MASK(64);
+	adapter->cycles.mult = 1;
+	adapter->cycles.shift = IGB_TSYNC_SHIFT;
+	wr32(E1000_TIMINCA,
+	     (1<<24) |
+	     IGB_TSYNC_CYCLE_TIME_IN_NANOSECONDS * IGB_TSYNC_SCALE);
+#if 0
+	/*
+	 * Avoid rollover while we initialize by resetting the time counter.
+	 */
+	wr32(E1000_SYSTIML, 0x00000000);
+	wr32(E1000_SYSTIMH, 0x00000000);
+#else
+	/*
+	 * Set registers so that rollover occurs soon to test this.
+	 */
+	wr32(E1000_SYSTIML, 0x00000000);
+	wr32(E1000_SYSTIMH, 0xFF800000);
+#endif
+	wrfl();
+	timecounter_init(&adapter->clock,
+			 &adapter->cycles,
+			 ktime_to_ns(ktime_get_real()));
+
+#ifdef DEBUG
+	{
+		char buffer[160];
+		printk(KERN_DEBUG
+			"igb: %s: hw %p initialized timer\n",
+			igb_get_time_str(adapter, buffer),
+			&adapter->hw);
+	}
+#endif
+
 	dev_info(&pdev->dev, "Intel(R) Gigabit Ethernet Network Connection\n");
 	/* print bus type/speed/width info */
 	dev_info(&pdev->dev, "%s: (PCIe:%s:%s) %pM\n",
-- 
cgit v1.2.3-70-g09d2


From c6cb090ba7cd88aec03718dab76e4dad56862cae Mon Sep 17 00:00:00 2001
From: Patrick Ohly <patrick.ohly@intel.com>
Date: Thu, 12 Feb 2009 05:03:42 +0000
Subject: igb: stub support for SIOCSHWTSTAMP

Signed-off-by: John Ronciak <john.ronciak@intel.com>
Signed-off-by: Patrick Ohly <patrick.ohly@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 drivers/net/igb/igb_main.c | 31 +++++++++++++++++++++++++++++++
 1 file changed, 31 insertions(+)

(limited to 'drivers/net/igb')

diff --git a/drivers/net/igb/igb_main.c b/drivers/net/igb/igb_main.c
index 8b2ba424509..90090bb2604 100644
--- a/drivers/net/igb/igb_main.c
+++ b/drivers/net/igb/igb_main.c
@@ -34,6 +34,7 @@
 #include <linux/ipv6.h>
 #include <net/checksum.h>
 #include <net/ip6_checksum.h>
+#include <linux/net_tstamp.h>
 #include <linux/mii.h>
 #include <linux/ethtool.h>
 #include <linux/if_vlan.h>
@@ -4181,6 +4182,34 @@ static int igb_mii_ioctl(struct net_device *netdev, struct ifreq *ifr, int cmd)
 	return 0;
 }
 
+/**
+ * igb_hwtstamp_ioctl - control hardware time stamping
+ * @netdev:
+ * @ifreq:
+ * @cmd:
+ *
+ * Currently cannot enable any kind of hardware time stamping, but
+ * supports SIOCSHWTSTAMP in general.
+ **/
+static int igb_hwtstamp_ioctl(struct net_device *netdev,
+			      struct ifreq *ifr, int cmd)
+{
+	struct hwtstamp_config config;
+
+	if (copy_from_user(&config, ifr->ifr_data, sizeof(config)))
+		return -EFAULT;
+
+	/* reserved for future extensions */
+	if (config.flags)
+		return -EINVAL;
+
+	if (config.tx_type == HWTSTAMP_TX_OFF &&
+		config.rx_filter == HWTSTAMP_FILTER_NONE)
+		return 0;
+
+	return -ERANGE;
+}
+
 /**
  * igb_ioctl -
  * @netdev:
@@ -4194,6 +4223,8 @@ static int igb_ioctl(struct net_device *netdev, struct ifreq *ifr, int cmd)
 	case SIOCGMIIREG:
 	case SIOCSMIIREG:
 		return igb_mii_ioctl(netdev, ifr, cmd);
+	case SIOCSHWTSTAMP:
+		return igb_hwtstamp_ioctl(netdev, ifr, cmd);
 	default:
 		return -EOPNOTSUPP;
 	}
-- 
cgit v1.2.3-70-g09d2


From 33af6bcc005a826726b48e8775df5d58112bc10b Mon Sep 17 00:00:00 2001
From: Patrick Ohly <patrick.ohly@intel.com>
Date: Thu, 12 Feb 2009 05:03:43 +0000
Subject: igb: use timecompare to implement hardware time stamping

Both TX and RX hardware time stamping are implemented.  Due to
hardware limitations it is not possible to verify reliably which
packet was time stamped when multiple were pending for sending; this
could be solved by only allowing one packet marked for hardware time
stamping into the queue (not implemented yet).

RX time stamping relies on the flag in the packet descriptor which
marks packets that were time stamped. In "all packet" mode this flag
is not set. TODO: also support that mode (even though it'll suffer
from race conditions).

Signed-off-by: John Ronciak <john.ronciak@intel.com>
Signed-off-by: Patrick Ohly <patrick.ohly@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 drivers/net/igb/e1000_82575.h   |   1 +
 drivers/net/igb/e1000_defines.h |   1 +
 drivers/net/igb/e1000_regs.h    |  40 ++++++
 drivers/net/igb/igb.h           |   4 +
 drivers/net/igb/igb_main.c      | 266 ++++++++++++++++++++++++++++++++++++++--
 5 files changed, 304 insertions(+), 8 deletions(-)

(limited to 'drivers/net/igb')

diff --git a/drivers/net/igb/e1000_82575.h b/drivers/net/igb/e1000_82575.h
index dd50237c8cb..e613d5a606d 100644
--- a/drivers/net/igb/e1000_82575.h
+++ b/drivers/net/igb/e1000_82575.h
@@ -116,6 +116,7 @@ union e1000_adv_tx_desc {
 };
 
 /* Adv Transmit Descriptor Config Masks */
+#define E1000_ADVTXD_MAC_TSTAMP   0x00080000 /* IEEE1588 Timestamp packet */
 #define E1000_ADVTXD_DTYP_CTXT    0x00200000 /* Advanced Context Descriptor */
 #define E1000_ADVTXD_DTYP_DATA    0x00300000 /* Advanced Data Descriptor */
 #define E1000_ADVTXD_DCMD_IFCS    0x02000000 /* Insert FCS (Ethernet CRC) */
diff --git a/drivers/net/igb/e1000_defines.h b/drivers/net/igb/e1000_defines.h
index 5342e231c1d..79168eeaaa0 100644
--- a/drivers/net/igb/e1000_defines.h
+++ b/drivers/net/igb/e1000_defines.h
@@ -104,6 +104,7 @@
 #define E1000_RXD_STAT_UDPCS    0x10    /* UDP xsum calculated */
 #define E1000_RXD_STAT_TCPCS    0x20    /* TCP xsum calculated */
 #define E1000_RXD_STAT_DYNINT   0x800   /* Pkt caused INT via DYNINT */
+#define E1000_RXD_STAT_TS       0x10000 /* Pkt was time stamped */
 #define E1000_RXD_ERR_CE        0x01    /* CRC Error */
 #define E1000_RXD_ERR_SE        0x02    /* Symbol Error */
 #define E1000_RXD_ERR_SEQ       0x04    /* Sequence Error */
diff --git a/drivers/net/igb/e1000_regs.h b/drivers/net/igb/e1000_regs.h
index 64d95cd71f2..1fb19ca081c 100644
--- a/drivers/net/igb/e1000_regs.h
+++ b/drivers/net/igb/e1000_regs.h
@@ -78,9 +78,37 @@
 
 /* IEEE 1588 TIMESYNCH */
 #define E1000_TSYNCTXCTL 0x0B614
+#define E1000_TSYNCTXCTL_VALID (1<<0)
+#define E1000_TSYNCTXCTL_ENABLED (1<<4)
 #define E1000_TSYNCRXCTL 0x0B620
+#define E1000_TSYNCRXCTL_VALID (1<<0)
+#define E1000_TSYNCRXCTL_ENABLED (1<<4)
+enum {
+	E1000_TSYNCRXCTL_TYPE_L2_V2 = 0,
+	E1000_TSYNCRXCTL_TYPE_L4_V1 = (1<<1),
+	E1000_TSYNCRXCTL_TYPE_L2_L4_V2 = (1<<2),
+	E1000_TSYNCRXCTL_TYPE_ALL = (1<<3),
+	E1000_TSYNCRXCTL_TYPE_EVENT_V2 = (1<<3) | (1<<1),
+};
 #define E1000_TSYNCRXCFG 0x05F50
+enum {
+	E1000_TSYNCRXCFG_PTP_V1_SYNC_MESSAGE = 0<<0,
+	E1000_TSYNCRXCFG_PTP_V1_DELAY_REQ_MESSAGE = 1<<0,
+	E1000_TSYNCRXCFG_PTP_V1_FOLLOWUP_MESSAGE = 2<<0,
+	E1000_TSYNCRXCFG_PTP_V1_DELAY_RESP_MESSAGE = 3<<0,
+	E1000_TSYNCRXCFG_PTP_V1_MANAGEMENT_MESSAGE = 4<<0,
 
+	E1000_TSYNCRXCFG_PTP_V2_SYNC_MESSAGE = 0<<8,
+	E1000_TSYNCRXCFG_PTP_V2_DELAY_REQ_MESSAGE = 1<<8,
+	E1000_TSYNCRXCFG_PTP_V2_PATH_DELAY_REQ_MESSAGE = 2<<8,
+	E1000_TSYNCRXCFG_PTP_V2_PATH_DELAY_RESP_MESSAGE = 3<<8,
+	E1000_TSYNCRXCFG_PTP_V2_FOLLOWUP_MESSAGE = 8<<8,
+	E1000_TSYNCRXCFG_PTP_V2_DELAY_RESP_MESSAGE = 9<<8,
+	E1000_TSYNCRXCFG_PTP_V2_PATH_DELAY_FOLLOWUP_MESSAGE = 0xA<<8,
+	E1000_TSYNCRXCFG_PTP_V2_ANNOUNCE_MESSAGE = 0xB<<8,
+	E1000_TSYNCRXCFG_PTP_V2_SIGNALLING_MESSAGE = 0xC<<8,
+	E1000_TSYNCRXCFG_PTP_V2_MANAGEMENT_MESSAGE = 0xD<<8,
+};
 #define E1000_SYSTIML 0x0B600
 #define E1000_SYSTIMH 0x0B604
 #define E1000_TIMINCA 0x0B608
@@ -103,6 +131,18 @@
 #define E1000_ETQF6   0x05CC8
 #define E1000_ETQF7   0x05CCC
 
+/* Filtering Registers */
+#define E1000_SAQF(_n) (0x5980 + 4 * (_n))
+#define E1000_DAQF(_n) (0x59A0 + 4 * (_n))
+#define E1000_SPQF(_n) (0x59C0 + 4 * (_n))
+#define E1000_FTQF(_n) (0x59E0 + 4 * (_n))
+#define E1000_SAQF0 E1000_SAQF(0)
+#define E1000_DAQF0 E1000_DAQF(0)
+#define E1000_SPQF0 E1000_SPQF(0)
+#define E1000_FTQF0 E1000_FTQF(0)
+#define E1000_SYNQF(_n) (0x055FC + (4 * (_n))) /* SYN Packet Queue Fltr */
+#define E1000_ETQF(_n)  (0x05CB0 + (4 * (_n))) /* EType Queue Fltr */
+
 /* Split and Replication RX Control - RW */
 /*
  * Convenience macros
diff --git a/drivers/net/igb/igb.h b/drivers/net/igb/igb.h
index 797a9fe107a..bb8c35cec1a 100644
--- a/drivers/net/igb/igb.h
+++ b/drivers/net/igb/igb.h
@@ -35,6 +35,8 @@
 #include "e1000_82575.h"
 
 #include <linux/clocksource.h>
+#include <linux/timecompare.h>
+#include <linux/net_tstamp.h>
 
 struct igb_adapter;
 
@@ -255,6 +257,8 @@ struct igb_adapter {
 	struct net_device_stats net_stats;
 	struct cyclecounter cycles;
 	struct timecounter clock;
+	struct timecompare compare;
+	struct hwtstamp_config hwtstamp_config;
 
 	/* structs defined in e1000_hw.h */
 	struct e1000_hw hw;
diff --git a/drivers/net/igb/igb_main.c b/drivers/net/igb/igb_main.c
index 90090bb2604..f9d576bfef9 100644
--- a/drivers/net/igb/igb_main.c
+++ b/drivers/net/igb/igb_main.c
@@ -250,7 +250,8 @@ static char *igb_get_time_str(struct igb_adapter *adapter,
 	delta = timespec_sub(nic, sys);
 
 	sprintf(buffer,
-		"NIC %ld.%09lus, SYS %ld.%09lus, NIC-SYS %lds + %09luns",
+		"HW %llu, NIC %ld.%09lus, SYS %ld.%09lus, NIC-SYS %lds + %09luns",
+		hw,
 		(long)nic.tv_sec, nic.tv_nsec,
 		(long)sys.tv_sec, sys.tv_nsec,
 		(long)delta.tv_sec, delta.tv_nsec);
@@ -1400,6 +1401,18 @@ static int __devinit igb_probe(struct pci_dev *pdev,
 			 &adapter->cycles,
 			 ktime_to_ns(ktime_get_real()));
 
+	/*
+	 * Synchronize our NIC clock against system wall clock. NIC
+	 * time stamp reading requires ~3us per sample, each sample
+	 * was pretty stable even under load => only require 10
+	 * samples for each offset comparison.
+	 */
+	memset(&adapter->compare, 0, sizeof(adapter->compare));
+	adapter->compare.source = &adapter->clock;
+	adapter->compare.target = ktime_get_real;
+	adapter->compare.num_samples = 10;
+	timecompare_update(&adapter->compare, 0);
+
 #ifdef DEBUG
 	{
 		char buffer[160];
@@ -2748,6 +2761,7 @@ set_itr_now:
 #define IGB_TX_FLAGS_VLAN		0x00000002
 #define IGB_TX_FLAGS_TSO		0x00000004
 #define IGB_TX_FLAGS_IPV4		0x00000008
+#define IGB_TX_FLAGS_TSTAMP             0x00000010
 #define IGB_TX_FLAGS_VLAN_MASK	0xffff0000
 #define IGB_TX_FLAGS_VLAN_SHIFT	16
 
@@ -2975,6 +2989,9 @@ static inline void igb_tx_queue_adv(struct igb_adapter *adapter,
 	if (tx_flags & IGB_TX_FLAGS_VLAN)
 		cmd_type_len |= E1000_ADVTXD_DCMD_VLE;
 
+	if (tx_flags & IGB_TX_FLAGS_TSTAMP)
+		cmd_type_len |= E1000_ADVTXD_MAC_TSTAMP;
+
 	if (tx_flags & IGB_TX_FLAGS_TSO) {
 		cmd_type_len |= E1000_ADVTXD_DCMD_TSE;
 
@@ -3065,6 +3082,7 @@ static int igb_xmit_frame_ring_adv(struct sk_buff *skb,
 	unsigned int tx_flags = 0;
 	u8 hdr_len = 0;
 	int tso = 0;
+	union skb_shared_tx *shtx;
 
 	if (test_bit(__IGB_DOWN, &adapter->state)) {
 		dev_kfree_skb_any(skb);
@@ -3085,7 +3103,29 @@ static int igb_xmit_frame_ring_adv(struct sk_buff *skb,
 		/* this is a hard error */
 		return NETDEV_TX_BUSY;
 	}
-	skb_orphan(skb);
+
+	/*
+	 * TODO: check that there currently is no other packet with
+	 * time stamping in the queue
+	 *
+	 * When doing time stamping, keep the connection to the socket
+	 * a while longer: it is still needed by skb_hwtstamp_tx(),
+	 * called either in igb_tx_hwtstamp() or by our caller when
+	 * doing software time stamping.
+	 */
+	shtx = skb_tx(skb);
+	if (unlikely(shtx->hardware)) {
+		shtx->in_progress = 1;
+		tx_flags |= IGB_TX_FLAGS_TSTAMP;
+	} else if (likely(!shtx->software)) {
+		/*
+		 * TODO: can this be solved in dev.c:dev_hard_start_xmit()?
+		 * There are probably unmodified driver which do something
+		 * like this and thus don't work in combination with
+		 * SOF_TIMESTAMPING_TX_SOFTWARE.
+		 */
+		skb_orphan(skb);
+	}
 
 	if (adapter->vlgrp && vlan_tx_tag_present(skb)) {
 		tx_flags |= IGB_TX_FLAGS_VLAN;
@@ -3743,6 +3783,43 @@ static int igb_clean_rx_ring_msix(struct napi_struct *napi, int budget)
 	return 1;
 }
 
+/**
+ * igb_hwtstamp - utility function which checks for TX time stamp
+ * @adapter: board private structure
+ * @skb: packet that was just sent
+ *
+ * If we were asked to do hardware stamping and such a time stamp is
+ * available, then it must have been for this skb here because we only
+ * allow only one such packet into the queue.
+ */
+static void igb_tx_hwtstamp(struct igb_adapter *adapter, struct sk_buff *skb)
+{
+	union skb_shared_tx *shtx = skb_tx(skb);
+	struct e1000_hw *hw = &adapter->hw;
+
+	if (unlikely(shtx->hardware)) {
+		u32 valid = rd32(E1000_TSYNCTXCTL) & E1000_TSYNCTXCTL_VALID;
+		if (valid) {
+			u64 regval = rd32(E1000_TXSTMPL);
+			u64 ns;
+			struct skb_shared_hwtstamps shhwtstamps;
+
+			memset(&shhwtstamps, 0, sizeof(shhwtstamps));
+			regval |= (u64)rd32(E1000_TXSTMPH) << 32;
+			ns = timecounter_cyc2time(&adapter->clock,
+						  regval);
+			timecompare_update(&adapter->compare, ns);
+			shhwtstamps.hwtstamp = ns_to_ktime(ns);
+			shhwtstamps.syststamp =
+				timecompare_transform(&adapter->compare, ns);
+			skb_tstamp_tx(skb, &shhwtstamps);
+		}
+
+		/* delayed orphaning: skb_tstamp_tx() needs the socket */
+		skb_orphan(skb);
+	}
+}
+
 /**
  * igb_clean_tx_irq - Reclaim resources after transmit completes
  * @adapter: board private structure
@@ -3781,6 +3858,8 @@ static bool igb_clean_tx_irq(struct igb_ring *tx_ring)
 					    skb->len;
 				total_packets += segs;
 				total_bytes += bytecount;
+
+				igb_tx_hwtstamp(adapter, skb);
 			}
 
 			igb_unmap_and_free_tx_resource(adapter, buffer_info);
@@ -3914,6 +3993,7 @@ static bool igb_clean_rx_irq_adv(struct igb_ring *rx_ring,
 {
 	struct igb_adapter *adapter = rx_ring->adapter;
 	struct net_device *netdev = adapter->netdev;
+	struct e1000_hw *hw = &adapter->hw;
 	struct pci_dev *pdev = adapter->pdev;
 	union e1000_adv_rx_desc *rx_desc , *next_rxd;
 	struct igb_buffer *buffer_info , *next_buffer;
@@ -4006,6 +4086,47 @@ static bool igb_clean_rx_irq_adv(struct igb_ring *rx_ring,
 			goto next_desc;
 		}
 send_up:
+		/*
+		 * If this bit is set, then the RX registers contain
+		 * the time stamp. No other packet will be time
+		 * stamped until we read these registers, so read the
+		 * registers to make them available again. Because
+		 * only one packet can be time stamped at a time, we
+		 * know that the register values must belong to this
+		 * one here and therefore we don't need to compare
+		 * any of the additional attributes stored for it.
+		 *
+		 * If nothing went wrong, then it should have a
+		 * skb_shared_tx that we can turn into a
+		 * skb_shared_hwtstamps.
+		 *
+		 * TODO: can time stamping be triggered (thus locking
+		 * the registers) without the packet reaching this point
+		 * here? In that case RX time stamping would get stuck.
+		 *
+		 * TODO: in "time stamp all packets" mode this bit is
+		 * not set. Need a global flag for this mode and then
+		 * always read the registers. Cannot be done without
+		 * a race condition.
+		 */
+		if (unlikely(staterr & E1000_RXD_STAT_TS)) {
+			u64 regval;
+			u64 ns;
+			struct skb_shared_hwtstamps *shhwtstamps =
+				skb_hwtstamps(skb);
+
+			WARN(!(rd32(E1000_TSYNCRXCTL) & E1000_TSYNCRXCTL_VALID),
+			     "igb: no RX time stamp available for time stamped packet");
+			regval = rd32(E1000_RXSTMPL);
+			regval |= (u64)rd32(E1000_RXSTMPH) << 32;
+			ns = timecounter_cyc2time(&adapter->clock, regval);
+			timecompare_update(&adapter->compare, ns);
+			memset(shhwtstamps, 0, sizeof(*shhwtstamps));
+			shhwtstamps->hwtstamp = ns_to_ktime(ns);
+			shhwtstamps->syststamp =
+				timecompare_transform(&adapter->compare, ns);
+		}
+
 		if (staterr & E1000_RXDEXT_ERR_FRAME_ERR_MASK) {
 			dev_kfree_skb_irq(skb);
 			goto next_desc;
@@ -4188,13 +4309,33 @@ static int igb_mii_ioctl(struct net_device *netdev, struct ifreq *ifr, int cmd)
  * @ifreq:
  * @cmd:
  *
- * Currently cannot enable any kind of hardware time stamping, but
- * supports SIOCSHWTSTAMP in general.
+ * Outgoing time stamping can be enabled and disabled. Play nice and
+ * disable it when requested, although it shouldn't case any overhead
+ * when no packet needs it. At most one packet in the queue may be
+ * marked for time stamping, otherwise it would be impossible to tell
+ * for sure to which packet the hardware time stamp belongs.
+ *
+ * Incoming time stamping has to be configured via the hardware
+ * filters. Not all combinations are supported, in particular event
+ * type has to be specified. Matching the kind of event packet is
+ * not supported, with the exception of "all V2 events regardless of
+ * level 2 or 4".
+ *
  **/
 static int igb_hwtstamp_ioctl(struct net_device *netdev,
 			      struct ifreq *ifr, int cmd)
 {
+	struct igb_adapter *adapter = netdev_priv(netdev);
+	struct e1000_hw *hw = &adapter->hw;
 	struct hwtstamp_config config;
+	u32 tsync_tx_ctl_bit = E1000_TSYNCTXCTL_ENABLED;
+	u32 tsync_rx_ctl_bit = E1000_TSYNCRXCTL_ENABLED;
+	u32 tsync_rx_ctl_type = 0;
+	u32 tsync_rx_cfg = 0;
+	int is_l4 = 0;
+	int is_l2 = 0;
+	short port = 319; /* PTP */
+	u32 regval;
 
 	if (copy_from_user(&config, ifr->ifr_data, sizeof(config)))
 		return -EFAULT;
@@ -4203,11 +4344,120 @@ static int igb_hwtstamp_ioctl(struct net_device *netdev,
 	if (config.flags)
 		return -EINVAL;
 
-	if (config.tx_type == HWTSTAMP_TX_OFF &&
-		config.rx_filter == HWTSTAMP_FILTER_NONE)
-		return 0;
+	switch (config.tx_type) {
+	case HWTSTAMP_TX_OFF:
+		tsync_tx_ctl_bit = 0;
+		break;
+	case HWTSTAMP_TX_ON:
+		tsync_tx_ctl_bit = E1000_TSYNCTXCTL_ENABLED;
+		break;
+	default:
+		return -ERANGE;
+	}
+
+	switch (config.rx_filter) {
+	case HWTSTAMP_FILTER_NONE:
+		tsync_rx_ctl_bit = 0;
+		break;
+	case HWTSTAMP_FILTER_PTP_V1_L4_EVENT:
+	case HWTSTAMP_FILTER_PTP_V2_L4_EVENT:
+	case HWTSTAMP_FILTER_PTP_V2_L2_EVENT:
+	case HWTSTAMP_FILTER_ALL:
+		/*
+		 * register TSYNCRXCFG must be set, therefore it is not
+		 * possible to time stamp both Sync and Delay_Req messages
+		 * => fall back to time stamping all packets
+		 */
+		tsync_rx_ctl_type = E1000_TSYNCRXCTL_TYPE_ALL;
+		config.rx_filter = HWTSTAMP_FILTER_ALL;
+		break;
+	case HWTSTAMP_FILTER_PTP_V1_L4_SYNC:
+		tsync_rx_ctl_type = E1000_TSYNCRXCTL_TYPE_L4_V1;
+		tsync_rx_cfg = E1000_TSYNCRXCFG_PTP_V1_SYNC_MESSAGE;
+		is_l4 = 1;
+		break;
+	case HWTSTAMP_FILTER_PTP_V1_L4_DELAY_REQ:
+		tsync_rx_ctl_type = E1000_TSYNCRXCTL_TYPE_L4_V1;
+		tsync_rx_cfg = E1000_TSYNCRXCFG_PTP_V1_DELAY_REQ_MESSAGE;
+		is_l4 = 1;
+		break;
+	case HWTSTAMP_FILTER_PTP_V2_L2_SYNC:
+	case HWTSTAMP_FILTER_PTP_V2_L4_SYNC:
+		tsync_rx_ctl_type = E1000_TSYNCRXCTL_TYPE_L2_L4_V2;
+		tsync_rx_cfg = E1000_TSYNCRXCFG_PTP_V2_SYNC_MESSAGE;
+		is_l2 = 1;
+		is_l4 = 1;
+		config.rx_filter = HWTSTAMP_FILTER_SOME;
+		break;
+	case HWTSTAMP_FILTER_PTP_V2_L2_DELAY_REQ:
+	case HWTSTAMP_FILTER_PTP_V2_L4_DELAY_REQ:
+		tsync_rx_ctl_type = E1000_TSYNCRXCTL_TYPE_L2_L4_V2;
+		tsync_rx_cfg = E1000_TSYNCRXCFG_PTP_V2_DELAY_REQ_MESSAGE;
+		is_l2 = 1;
+		is_l4 = 1;
+		config.rx_filter = HWTSTAMP_FILTER_SOME;
+		break;
+	case HWTSTAMP_FILTER_PTP_V2_EVENT:
+	case HWTSTAMP_FILTER_PTP_V2_SYNC:
+	case HWTSTAMP_FILTER_PTP_V2_DELAY_REQ:
+		tsync_rx_ctl_type = E1000_TSYNCRXCTL_TYPE_EVENT_V2;
+		config.rx_filter = HWTSTAMP_FILTER_PTP_V2_EVENT;
+		is_l2 = 1;
+		break;
+	default:
+		return -ERANGE;
+	}
+
+	/* enable/disable TX */
+	regval = rd32(E1000_TSYNCTXCTL);
+	regval = (regval & ~E1000_TSYNCTXCTL_ENABLED) | tsync_tx_ctl_bit;
+	wr32(E1000_TSYNCTXCTL, regval);
+
+	/* enable/disable RX, define which PTP packets are time stamped */
+	regval = rd32(E1000_TSYNCRXCTL);
+	regval = (regval & ~E1000_TSYNCRXCTL_ENABLED) | tsync_rx_ctl_bit;
+	regval = (regval & ~0xE) | tsync_rx_ctl_type;
+	wr32(E1000_TSYNCRXCTL, regval);
+	wr32(E1000_TSYNCRXCFG, tsync_rx_cfg);
+
+	/*
+	 * Ethertype Filter Queue Filter[0][15:0] = 0x88F7
+	 *                                          (Ethertype to filter on)
+	 * Ethertype Filter Queue Filter[0][26] = 0x1 (Enable filter)
+	 * Ethertype Filter Queue Filter[0][30] = 0x1 (Enable Timestamping)
+	 */
+	wr32(E1000_ETQF0, is_l2 ? 0x440088f7 : 0);
+
+	/* L4 Queue Filter[0]: only filter by source and destination port */
+	wr32(E1000_SPQF0, htons(port));
+	wr32(E1000_IMIREXT(0), is_l4 ?
+	     ((1<<12) | (1<<19) /* bypass size and control flags */) : 0);
+	wr32(E1000_IMIR(0), is_l4 ?
+	     (htons(port)
+	      | (0<<16) /* immediate interrupt disabled */
+	      | 0 /* (1<<17) bit cleared: do not bypass
+		     destination port check */)
+		: 0);
+	wr32(E1000_FTQF0, is_l4 ?
+	     (0x11 /* UDP */
+	      | (1<<15) /* VF not compared */
+	      | (1<<27) /* Enable Timestamping */
+	      | (7<<28) /* only source port filter enabled,
+			   source/target address and protocol
+			   masked */)
+	     : ((1<<15) | (15<<28) /* all mask bits set = filter not
+				      enabled */));
+
+	wrfl();
+
+	adapter->hwtstamp_config = config;
+
+	/* clear TX/RX time stamp registers, just to be sure */
+	regval = rd32(E1000_TXSTMPH);
+	regval = rd32(E1000_RXSTMPH);
 
-	return -ERANGE;
+	return copy_to_user(ifr->ifr_data, &config, sizeof(config)) ?
+		-EFAULT : 0;
 }
 
 /**
-- 
cgit v1.2.3-70-g09d2


From 73cd78f1d36da244b8b3b81d3a0f32372a636e5c Mon Sep 17 00:00:00 2001
From: Alexander Duyck <alexander.h.duyck@intel.com>
Date: Thu, 12 Feb 2009 18:16:59 +0000
Subject: igb: misc whitespace/formatting cleanups

This patch is intended to hold several whitespace, formatting, and
comment cleanups that have been found while cleaning up the igb driver.

Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com>
Acked-by: Peter P Waskiewicz Jr <peter.p.waskiewicz.jr@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 drivers/net/igb/igb_main.c | 58 ++++++++++++++++------------------------------
 1 file changed, 20 insertions(+), 38 deletions(-)

(limited to 'drivers/net/igb')

diff --git a/drivers/net/igb/igb_main.c b/drivers/net/igb/igb_main.c
index f9d576bfef9..53e580bdfe2 100644
--- a/drivers/net/igb/igb_main.c
+++ b/drivers/net/igb/igb_main.c
@@ -1691,7 +1691,6 @@ static int igb_close(struct net_device *netdev)
  *
  * Return 0 on success, negative on failure
  **/
-
 int igb_setup_tx_resources(struct igb_adapter *adapter,
 			   struct igb_ring *tx_ring)
 {
@@ -1771,13 +1770,13 @@ static void igb_configure_tx(struct igb_adapter *adapter)
 	int i, j;
 
 	for (i = 0; i < adapter->num_tx_queues; i++) {
-		struct igb_ring *ring = &(adapter->tx_ring[i]);
+		struct igb_ring *ring = &adapter->tx_ring[i];
 		j = ring->reg_idx;
 		wr32(E1000_TDLEN(j),
-				ring->count * sizeof(struct e1000_tx_desc));
+		     ring->count * sizeof(struct e1000_tx_desc));
 		tdba = ring->dma;
 		wr32(E1000_TDBAL(j),
-				tdba & 0x00000000ffffffffULL);
+		     tdba & 0x00000000ffffffffULL);
 		wr32(E1000_TDBAH(j), tdba >> 32);
 
 		ring->head = E1000_TDH(j);
@@ -1797,8 +1796,6 @@ static void igb_configure_tx(struct igb_adapter *adapter)
 		wr32(E1000_DCA_TXCTRL(j), txctrl);
 	}
 
-
-
 	/* Use the default values for the Tx Inter Packet Gap (IPG) timer */
 
 	/* Program the Transmit Control Register */
@@ -1826,7 +1823,6 @@ static void igb_configure_tx(struct igb_adapter *adapter)
  *
  * Returns 0 on success, negative on failure
  **/
-
 int igb_setup_rx_resources(struct igb_adapter *adapter,
 			   struct igb_ring *rx_ring)
 {
@@ -1913,7 +1909,7 @@ static void igb_setup_rctl(struct igb_adapter *adapter)
 	 * enable stripping of CRC. It's unlikely this will break BMC
 	 * redirection as it did with e1000. Newer features require
 	 * that the HW strips the CRC.
-	*/
+	 */
 	rctl |= E1000_RCTL_SECRC;
 
 	/*
@@ -1991,14 +1987,14 @@ static void igb_configure_rx(struct igb_adapter *adapter)
 	/* Setup the HW Rx Head and Tail Descriptor Pointers and
 	 * the Base and Length of the Rx Descriptor Ring */
 	for (i = 0; i < adapter->num_rx_queues; i++) {
-		struct igb_ring *ring = &(adapter->rx_ring[i]);
+		struct igb_ring *ring = &adapter->rx_ring[i];
 		j = ring->reg_idx;
 		rdba = ring->dma;
 		wr32(E1000_RDBAL(j),
-				rdba & 0x00000000ffffffffULL);
+		     rdba & 0x00000000ffffffffULL);
 		wr32(E1000_RDBAH(j), rdba >> 32);
 		wr32(E1000_RDLEN(j),
-			       ring->count * sizeof(union e1000_adv_rx_desc));
+		     ring->count * sizeof(union e1000_adv_rx_desc));
 
 		ring->head = E1000_RDH(j);
 		ring->tail = E1000_RDT(j);
@@ -2136,6 +2132,7 @@ static void igb_unmap_and_free_tx_resource(struct igb_adapter *adapter,
 		buffer_info->skb = NULL;
 	}
 	buffer_info->time_stamp = 0;
+	buffer_info->next_to_watch = 0;
 	/* buffer_info must be completely set up in the transmit path */
 }
 
@@ -2701,15 +2698,13 @@ static void igb_set_itr(struct igb_adapter *adapter)
 					    adapter->tx_itr,
 					    adapter->tx_ring->total_packets,
 					    adapter->tx_ring->total_bytes);
-
 		current_itr = max(adapter->rx_itr, adapter->tx_itr);
 	} else {
 		current_itr = adapter->rx_itr;
 	}
 
 	/* conservative mode (itr 3) eliminates the lowest_latency setting */
-	if (adapter->itr_setting == 3 &&
-	    current_itr == lowest_latency)
+	if (adapter->itr_setting == 3 && current_itr == lowest_latency)
 		current_itr = low_latency;
 
 	switch (current_itr) {
@@ -2827,7 +2822,7 @@ static inline int igb_tso_adv(struct igb_adapter *adapter,
 	mss_l4len_idx = (skb_shinfo(skb)->gso_size << E1000_ADVTXD_MSS_SHIFT);
 	mss_l4len_idx |= (l4len << E1000_ADVTXD_L4LEN_SHIFT);
 
-	/* Context index must be unique per ring. */
+	/* For 82575, context index must be unique per ring. */
 	if (adapter->flags & IGB_FLAG_NEED_CTX_IDX)
 		mss_l4len_idx |= tx_ring->queue_index << 4;
 
@@ -2911,8 +2906,6 @@ static inline bool igb_tx_csum_adv(struct igb_adapter *adapter,
 
 		return true;
 	}
-
-
 	return false;
 }
 
@@ -3136,7 +3129,6 @@ static int igb_xmit_frame_ring_adv(struct sk_buff *skb,
 		tx_flags |= IGB_TX_FLAGS_IPV4;
 
 	first = tx_ring->next_to_use;
-
 	tso = skb_is_gso(skb) ? igb_tso_adv(adapter, tx_ring, skb, tx_flags,
 					      &hdr_len) : 0;
 
@@ -3210,8 +3202,7 @@ static void igb_reset_task(struct work_struct *work)
  * Returns the address of the device statistics structure.
  * The statistics are actually updated from the timer callback.
  **/
-static struct net_device_stats *
-igb_get_stats(struct net_device *netdev)
+static struct net_device_stats *igb_get_stats(struct net_device *netdev)
 {
 	struct igb_adapter *adapter = netdev_priv(netdev);
 
@@ -3245,6 +3236,7 @@ static int igb_change_mtu(struct net_device *netdev, int new_mtu)
 
 	while (test_and_set_bit(__IGB_RESETTING, &adapter->state))
 		msleep(1);
+
 	/* igb_down has a dependency on max_frame_size */
 	adapter->max_frame_size = max_frame;
 	if (netif_running(netdev))
@@ -3414,8 +3406,7 @@ void igb_update_stats(struct igb_adapter *adapter)
 	/* Phy Stats */
 	if (hw->phy.media_type == e1000_media_type_copper) {
 		if ((adapter->link_speed == SPEED_1000) &&
-		   (!igb_read_phy_reg(hw, PHY_1000T_STATUS,
-					      &phy_tmp))) {
+		   (!igb_read_phy_reg(hw, PHY_1000T_STATUS, &phy_tmp))) {
 			phy_tmp &= PHY_IDLE_ERROR_COUNT_MASK;
 			adapter->phy_stats.idle_errors += phy_tmp;
 		}
@@ -3427,7 +3418,6 @@ void igb_update_stats(struct igb_adapter *adapter)
 	adapter->stats.mgpdc += rd32(E1000_MGTPDC);
 }
 
-
 static irqreturn_t igb_msix_other(int irq, void *data)
 {
 	struct net_device *netdev = data;
@@ -3465,6 +3455,7 @@ static irqreturn_t igb_msix_tx(int irq, void *data)
 	if (adapter->flags & IGB_FLAG_DCA_ENABLED)
 		igb_update_tx_dca(tx_ring);
 #endif
+
 	tx_ring->total_bytes = 0;
 	tx_ring->total_packets = 0;
 
@@ -3485,13 +3476,11 @@ static void igb_write_itr(struct igb_ring *ring)
 	if ((ring->adapter->itr_setting & 3) && ring->set_itr) {
 		switch (hw->mac.type) {
 		case e1000_82576:
-			wr32(ring->itr_register,
-			     ring->itr_val |
+			wr32(ring->itr_register, ring->itr_val |
 			     0x80000000);
 			break;
 		default:
-			wr32(ring->itr_register,
-			     ring->itr_val |
+			wr32(ring->itr_register, ring->itr_val |
 			     (ring->itr_val << 16));
 			break;
 		}
@@ -3762,7 +3751,6 @@ static int igb_clean_rx_ring_msix(struct napi_struct *napi, int budget)
 #endif
 	igb_clean_rx_irq_adv(rx_ring, &work_done, budget);
 
-
 	/* If not enough Rx work done, exit the polling mode */
 	if ((work_done == 0) || !netif_running(netdev)) {
 		napi_complete(napi);
@@ -3773,7 +3761,6 @@ static int igb_clean_rx_ring_msix(struct napi_struct *napi, int budget)
 			else
 				igb_update_ring_itr(rx_ring);
 		}
-
 		if (!test_bit(__IGB_DOWN, &adapter->state))
 			wr32(E1000_EIMS, rx_ring->eims_value);
 
@@ -3869,7 +3856,6 @@ static bool igb_clean_tx_irq(struct igb_ring *tx_ring)
 			if (i == tx_ring->count)
 				i = 0;
 		}
-
 		eop = tx_ring->buffer_info[i].next_to_watch;
 		eop_desc = E1000_TX_DESC_ADV(*tx_ring, eop);
 	}
@@ -3938,7 +3924,7 @@ static bool igb_clean_tx_irq(struct igb_ring *tx_ring)
  * igb_receive_skb - helper function to handle rx indications
  * @ring: pointer to receive ring receving this packet
  * @status: descriptor status field as written by hardware
- * @vlan: descriptor vlan field as written by hardware (no le/be conversion)
+ * @rx_desc: receive descriptor containing vlan and type information.
  * @skb: pointer to sk_buff to be indicated to stack
  **/
 static void igb_receive_skb(struct igb_ring *ring, u8 status,
@@ -3965,7 +3951,6 @@ static void igb_receive_skb(struct igb_ring *ring, u8 status,
 	}
 }
 
-
 static inline void igb_rx_checksum_adv(struct igb_adapter *adapter,
 				       u32 status_err, struct sk_buff *skb)
 {
@@ -3998,11 +3983,11 @@ static bool igb_clean_rx_irq_adv(struct igb_ring *rx_ring,
 	union e1000_adv_rx_desc *rx_desc , *next_rxd;
 	struct igb_buffer *buffer_info , *next_buffer;
 	struct sk_buff *skb;
-	unsigned int i;
-	u32 length, hlen, staterr;
 	bool cleaned = false;
 	int cleaned_count = 0;
 	unsigned int total_bytes = 0, total_packets = 0;
+	unsigned int i;
+	u32 length, hlen, staterr;
 
 	i = rx_ring->next_to_clean;
 	buffer_info = &rx_ring->buffer_info[i];
@@ -4050,8 +4035,7 @@ static bool igb_clean_rx_irq_adv(struct igb_ring *rx_ring,
 
 		if (!skb_shinfo(skb)->nr_frags) {
 			pci_unmap_single(pdev, buffer_info->dma,
-					 adapter->rx_ps_hdr_size +
-					   NET_IP_ALIGN,
+					 adapter->rx_ps_hdr_size + NET_IP_ALIGN,
 					 PCI_DMA_FROMDEVICE);
 			skb_put(skb, hlen);
 		}
@@ -4171,7 +4155,6 @@ next_desc:
 	return cleaned;
 }
 
-
 /**
  * igb_alloc_rx_buffers_adv - Replace used receive buffers; packet split
  * @adapter: address of board private structure
@@ -4619,7 +4602,6 @@ int igb_set_spd_dplx(struct igb_adapter *adapter, u16 spddplx)
 	return 0;
 }
 
-
 static int igb_suspend(struct pci_dev *pdev, pm_message_t state)
 {
 	struct net_device *netdev = pci_get_drvdata(pdev);
-- 
cgit v1.2.3-70-g09d2


From 1e5c3d218ac19d5a5e9b3a8f09777c2b555b2499 Mon Sep 17 00:00:00 2001
From: Alexander Duyck <alexander.h.duyck@intel.com>
Date: Thu, 12 Feb 2009 18:17:21 +0000
Subject: igb: reduce size required to trigger low latency

Update the Adaptive Interrupt Moderation algorithm so that the low latency
state is triggered less easily to prevent high interrupt loads.

Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 drivers/net/igb/igb_main.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

(limited to 'drivers/net/igb')

diff --git a/drivers/net/igb/igb_main.c b/drivers/net/igb/igb_main.c
index 53e580bdfe2..86782f9218a 100644
--- a/drivers/net/igb/igb_main.c
+++ b/drivers/net/igb/igb_main.c
@@ -2666,7 +2666,7 @@ static unsigned int igb_update_itr(struct igb_adapter *adapter, u16 itr_setting,
 		if (bytes > 25000) {
 			if (packets > 35)
 				retval = low_latency;
-		} else if (bytes < 6000) {
+		} else if (bytes < 1500) {
 			retval = low_latency;
 		}
 		break;
-- 
cgit v1.2.3-70-g09d2


From 56fbbb4e619f4bf604c350e3948a291bda759101 Mon Sep 17 00:00:00 2001
From: Alexander Duyck <alexander.h.duyck@intel.com>
Date: Thu, 12 Feb 2009 18:17:42 +0000
Subject: igb: cleanup incorrect comment and set IP Checksum Enable

IP Checksum enable doesn't need packet split in order to function.  It only
requires the use of advanced descriptors which the current igb driver does.
So we can enable it always without any issues.

Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com>
Acked-by: Peter P Waskiewicz Jr <peter.p.waskiewicz.jr@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 drivers/net/igb/igb_main.c | 14 ++++----------
 1 file changed, 4 insertions(+), 10 deletions(-)

(limited to 'drivers/net/igb')

diff --git a/drivers/net/igb/igb_main.c b/drivers/net/igb/igb_main.c
index 86782f9218a..c259013fe7b 100644
--- a/drivers/net/igb/igb_main.c
+++ b/drivers/net/igb/igb_main.c
@@ -2059,17 +2059,11 @@ static void igb_configure_rx(struct igb_adapter *adapter)
 	} else {
 		/* Enable Receive Checksum Offload for TCP and UDP */
 		rxcsum = rd32(E1000_RXCSUM);
-		if (adapter->rx_csum) {
-			rxcsum |= E1000_RXCSUM_TUOFL;
+		if (adapter->rx_csum)
+			rxcsum |= E1000_RXCSUM_TUOFL | E1000_RXCSUM_IPPCSE;
+		else
+			rxcsum &= ~(E1000_RXCSUM_TUOFL | E1000_RXCSUM_IPPCSE);
 
-			/* Enable IPv4 payload checksum for UDP fragments
-			 * Must be used in conjunction with packet-split. */
-			if (adapter->rx_ps_hdr_size)
-				rxcsum |= E1000_RXCSUM_IPPCSE;
-		} else {
-			rxcsum &= ~E1000_RXCSUM_TUOFL;
-			/* don't need to clear IPPCSE as it defaults to 0 */
-		}
 		wr32(E1000_RXCSUM, rxcsum);
 	}
 
-- 
cgit v1.2.3-70-g09d2


From bc1cbd3493c7a6b44fa6a1e6040ae3d9640d47c4 Mon Sep 17 00:00:00 2001
From: Alexander Duyck <alexander.h.duyck@intel.com>
Date: Fri, 13 Feb 2009 14:45:17 +0000
Subject: igb: misc cleanup to combine one if statement

This patch combines a pair of if statements into one.

Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
CC: Ben Hutchings <bhutchings@solarflare.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 drivers/net/igb/igb_main.c | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

(limited to 'drivers/net/igb')

diff --git a/drivers/net/igb/igb_main.c b/drivers/net/igb/igb_main.c
index c259013fe7b..18bc5700faf 100644
--- a/drivers/net/igb/igb_main.c
+++ b/drivers/net/igb/igb_main.c
@@ -3133,9 +3133,9 @@ static int igb_xmit_frame_ring_adv(struct sk_buff *skb,
 
 	if (tso)
 		tx_flags |= IGB_TX_FLAGS_TSO;
-	else if (igb_tx_csum_adv(adapter, tx_ring, skb, tx_flags))
-			if (skb->ip_summed == CHECKSUM_PARTIAL)
-				tx_flags |= IGB_TX_FLAGS_CSUM;
+	else if (igb_tx_csum_adv(adapter, tx_ring, skb, tx_flags) &&
+	         (skb->ip_summed == CHECKSUM_PARTIAL))
+		tx_flags |= IGB_TX_FLAGS_CSUM;
 
 	igb_tx_queue_adv(adapter, tx_ring, tx_flags,
 			 igb_tx_map_adv(adapter, tx_ring, skb, first),
-- 
cgit v1.2.3-70-g09d2


From cbd347adfee2ba52a8ef85f92a46933d5840cc39 Mon Sep 17 00:00:00 2001
From: Alexander Duyck <alexander.h.duyck@intel.com>
Date: Sun, 15 Feb 2009 23:59:44 -0800
Subject: igb: remove unused defines

This patch removes all of the unused defines from the .h files contained in
igb.  For some defines there was a use and so I plugged them into the correct
locations.

Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 drivers/net/igb/e1000_82575.h   |  16 +-----
 drivers/net/igb/e1000_defines.h | 113 ----------------------------------------
 drivers/net/igb/e1000_mac.h     |   5 --
 drivers/net/igb/e1000_phy.c     |   3 --
 drivers/net/igb/e1000_regs.h    |  14 -----
 drivers/net/igb/igb.h           |  17 ++----
 drivers/net/igb/igb_ethtool.c   |   6 +--
 drivers/net/igb/igb_main.c      |  12 ++---
 8 files changed, 11 insertions(+), 175 deletions(-)

(limited to 'drivers/net/igb')

diff --git a/drivers/net/igb/e1000_82575.h b/drivers/net/igb/e1000_82575.h
index e613d5a606d..49b41c92a8c 100644
--- a/drivers/net/igb/e1000_82575.h
+++ b/drivers/net/igb/e1000_82575.h
@@ -58,9 +58,6 @@ extern void igb_rx_fifo_flush_82575(struct e1000_hw *hw);
     E1000_EICR_RX_QUEUE2 |    \
     E1000_EICR_RX_QUEUE3)
 
-#define E1000_EIMS_RX_QUEUE E1000_EICR_RX_QUEUE
-#define E1000_EIMS_TX_QUEUE E1000_EICR_TX_QUEUE
-
 /* Immediate Interrupt Rx (A.K.A. Low Latency Interrupt) */
 
 /* Receive Descriptor - Advanced */
@@ -95,12 +92,6 @@ union e1000_adv_rx_desc {
 #define E1000_RXDADV_HDRBUFLEN_MASK      0x7FE0
 #define E1000_RXDADV_HDRBUFLEN_SHIFT     5
 
-/* RSS Hash results */
-
-/* RSS Packet Types as indicated in the receive descriptor */
-#define E1000_RXDADV_PKTTYPE_IPV4        0x00000010 /* IPV4 hdr present */
-#define E1000_RXDADV_PKTTYPE_TCP         0x00000100 /* TCP hdr present */
-
 /* Transmit Descriptor - Advanced */
 union e1000_adv_tx_desc {
 	struct {
@@ -150,11 +141,8 @@ struct e1000_adv_tx_context_desc {
 #define E1000_RXDCTL_QUEUE_ENABLE  0x02000000 /* Enable specific Rx Queue */
 
 /* Direct Cache Access (DCA) definitions */
-#define E1000_DCA_CTRL_DCA_ENABLE  0x00000000 /* DCA Enable */
-#define E1000_DCA_CTRL_DCA_DISABLE 0x00000001 /* DCA Disable */
-
-#define E1000_DCA_CTRL_DCA_MODE_CB1 0x00 /* DCA Mode CB1 */
-#define E1000_DCA_CTRL_DCA_MODE_CB2 0x02 /* DCA Mode CB2 */
+#define E1000_DCA_CTRL_DCA_MODE_DISABLE 0x01 /* DCA Disable */
+#define E1000_DCA_CTRL_DCA_MODE_CB2     0x02 /* DCA Mode CB2 */
 
 #define E1000_DCA_RXCTRL_CPUID_MASK 0x0000001F /* Rx CPUID Mask */
 #define E1000_DCA_RXCTRL_DESC_DCA_EN (1 << 5) /* DCA Rx Desc enable */
diff --git a/drivers/net/igb/e1000_defines.h b/drivers/net/igb/e1000_defines.h
index 79168eeaaa0..5a32a7004e0 100644
--- a/drivers/net/igb/e1000_defines.h
+++ b/drivers/net/igb/e1000_defines.h
@@ -42,33 +42,9 @@
 #define E1000_WUFC_EX   0x00000004 /* Directed Exact Wakeup Enable */
 #define E1000_WUFC_MC   0x00000008 /* Directed Multicast Wakeup Enable */
 #define E1000_WUFC_BC   0x00000010 /* Broadcast Wakeup Enable */
-#define E1000_WUFC_ARP  0x00000020 /* ARP Request Packet Wakeup Enable */
-#define E1000_WUFC_IPV4 0x00000040 /* Directed IPv4 Packet Wakeup Enable */
-#define E1000_WUFC_IPV6 0x00000080 /* Directed IPv6 Packet Wakeup Enable */
-#define E1000_WUFC_FLX0 0x00010000 /* Flexible Filter 0 Enable */
-#define E1000_WUFC_FLX1 0x00020000 /* Flexible Filter 1 Enable */
-#define E1000_WUFC_FLX2 0x00040000 /* Flexible Filter 2 Enable */
-#define E1000_WUFC_FLX3 0x00080000 /* Flexible Filter 3 Enable */
-#define E1000_WUFC_FLX_FILTERS 0x000F0000 /* Mask for the 4 flexible filters */
-
-/* Wake Up Status */
-
-/* Wake Up Packet Length */
-
-/* Four Flexible Filters are supported */
-#define E1000_FLEXIBLE_FILTER_COUNT_MAX 4
-
-/* Each Flexible Filter is at most 128 (0x80) bytes in length */
-#define E1000_FLEXIBLE_FILTER_SIZE_MAX  128
-
 
 /* Extended Device Control */
-#define E1000_CTRL_EXT_GPI1_EN   0x00000002 /* Maps SDP5 to GPI1 */
-#define E1000_CTRL_EXT_SDP4_DATA 0x00000010 /* Value of SW Defineable Pin 4 */
-#define E1000_CTRL_EXT_SDP5_DATA 0x00000020 /* Value of SW Defineable Pin 5 */
 #define E1000_CTRL_EXT_SDP7_DATA 0x00000080 /* Value of SW Defineable Pin 7 */
-#define E1000_CTRL_EXT_SDP4_DIR  0x00000100 /* Direction of SDP4 0=in 1=out */
-#define E1000_CTRL_EXT_EE_RST    0x00002000 /* Reinitialize from EEPROM */
 #define E1000_CTRL_EXT_LINK_MODE_MASK 0x00C00000
 #define E1000_CTRL_EXT_LINK_MODE_PCIE_SERDES  0x00C00000
 #define E1000_CTRL_EXT_LINK_MODE_SGMII   0x00800000
@@ -103,14 +79,7 @@
 #define E1000_RXD_STAT_VP       0x08    /* IEEE VLAN Packet */
 #define E1000_RXD_STAT_UDPCS    0x10    /* UDP xsum calculated */
 #define E1000_RXD_STAT_TCPCS    0x20    /* TCP xsum calculated */
-#define E1000_RXD_STAT_DYNINT   0x800   /* Pkt caused INT via DYNINT */
 #define E1000_RXD_STAT_TS       0x10000 /* Pkt was time stamped */
-#define E1000_RXD_ERR_CE        0x01    /* CRC Error */
-#define E1000_RXD_ERR_SE        0x02    /* Symbol Error */
-#define E1000_RXD_ERR_SEQ       0x04    /* Sequence Error */
-#define E1000_RXD_ERR_CXE       0x10    /* Carrier Extension Error */
-#define E1000_RXD_ERR_RXE       0x80    /* Rx Data Error */
-#define E1000_RXD_SPC_VLAN_MASK 0x0FFF  /* VLAN ID is in lower 12 bits */
 
 #define E1000_RXDEXT_STATERR_CE    0x01000000
 #define E1000_RXDEXT_STATERR_SE    0x02000000
@@ -120,14 +89,6 @@
 #define E1000_RXDEXT_STATERR_IPE   0x40000000
 #define E1000_RXDEXT_STATERR_RXE   0x80000000
 
-/* mask to determine if packets should be dropped due to frame errors */
-#define E1000_RXD_ERR_FRAME_ERR_MASK ( \
-    E1000_RXD_ERR_CE  |                \
-    E1000_RXD_ERR_SE  |                \
-    E1000_RXD_ERR_SEQ |                \
-    E1000_RXD_ERR_CXE |                \
-    E1000_RXD_ERR_RXE)
-
 /* Same mask, but for extended and packet split descriptors */
 #define E1000_RXDEXT_ERR_FRAME_ERR_MASK ( \
     E1000_RXDEXT_STATERR_CE  |            \
@@ -146,16 +107,11 @@
 /* Management Control */
 #define E1000_MANC_SMBUS_EN      0x00000001 /* SMBus Enabled - RO */
 #define E1000_MANC_ASF_EN        0x00000002 /* ASF Enabled - RO */
-#define E1000_MANC_ARP_EN        0x00002000 /* Enable ARP Request Filtering */
 /* Enable Neighbor Discovery Filtering */
 #define E1000_MANC_RCV_TCO_EN    0x00020000 /* Receive TCO Packets Enabled */
 #define E1000_MANC_BLK_PHY_RST_ON_IDE   0x00040000 /* Block phy resets */
 /* Enable MAC address filtering */
 #define E1000_MANC_EN_MAC_ADDR_FILTER   0x00100000
-/* Enable MNG packets to host memory */
-#define E1000_MANC_EN_MNG2HOST   0x00200000
-/* Enable IP address filtering */
-
 
 /* Receive Control */
 #define E1000_RCTL_EN             0x00000002    /* enable */
@@ -163,14 +119,11 @@
 #define E1000_RCTL_UPE            0x00000008    /* unicast promiscuous enable */
 #define E1000_RCTL_MPE            0x00000010    /* multicast promiscuous enab */
 #define E1000_RCTL_LPE            0x00000020    /* long packet enable */
-#define E1000_RCTL_LBM_NO         0x00000000    /* no loopback mode */
 #define E1000_RCTL_LBM_MAC        0x00000040    /* MAC loopback mode */
 #define E1000_RCTL_LBM_TCVR       0x000000C0    /* tcvr loopback mode */
 #define E1000_RCTL_RDMTS_HALF     0x00000000    /* rx desc min threshold size */
 #define E1000_RCTL_MO_SHIFT       12            /* multicast offset shift */
 #define E1000_RCTL_BAM            0x00008000    /* broadcast enable */
-#define E1000_RCTL_SZ_2048        0x00000000    /* rx buffer size 2048 */
-#define E1000_RCTL_SZ_1024        0x00010000    /* rx buffer size 1024 */
 #define E1000_RCTL_SZ_512         0x00020000    /* rx buffer size 512 */
 #define E1000_RCTL_SZ_256         0x00030000    /* rx buffer size 256 */
 #define E1000_RCTL_VFE            0x00040000    /* vlan filter enable */
@@ -227,11 +180,7 @@
 /* enable link status from external LINK_0 and LINK_1 pins */
 #define E1000_CTRL_SWDPIN0  0x00040000  /* SWDPIN 0 value */
 #define E1000_CTRL_SWDPIN1  0x00080000  /* SWDPIN 1 value */
-#define E1000_CTRL_SWDPIN2  0x00100000  /* SWDPIN 2 value */
-#define E1000_CTRL_SWDPIN3  0x00200000  /* SWDPIN 3 value */
 #define E1000_CTRL_SWDPIO0  0x00400000  /* SWDPIN 0 Input or output */
-#define E1000_CTRL_SWDPIO2  0x01000000  /* SWDPIN 2 input or output */
-#define E1000_CTRL_SWDPIO3  0x02000000  /* SWDPIN 3 input or output */
 #define E1000_CTRL_RST      0x04000000  /* Global reset */
 #define E1000_CTRL_RFCE     0x08000000  /* Receive Flow Control enable */
 #define E1000_CTRL_TFCE     0x10000000  /* Transmit flow control enable */
@@ -309,9 +258,7 @@
 #define AUTONEG_ADVERTISE_SPEED_DEFAULT   E1000_ALL_SPEED_DUPLEX
 
 /* LED Control */
-#define E1000_LEDCTL_LED0_MODE_MASK       0x0000000F
 #define E1000_LEDCTL_LED0_MODE_SHIFT      0
-#define E1000_LEDCTL_LED0_IVRT            0x00000040
 #define E1000_LEDCTL_LED0_BLINK           0x00000080
 
 #define E1000_LEDCTL_MODE_LED_ON        0xE
@@ -358,12 +305,7 @@
 
 #define MAX_JUMBO_FRAME_SIZE    0x3F00
 
-/* Extended Configuration Control and Size */
-#define E1000_PHY_CTRL_GBE_DISABLE        0x00000040
-
 /* PBA constants */
-#define E1000_PBA_16K 0x0010    /* 16KB, default TX allocation */
-#define E1000_PBA_24K 0x0018
 #define E1000_PBA_34K 0x0022
 #define E1000_PBA_64K 0x0040    /* 64KB */
 
@@ -379,41 +321,13 @@
 
 /* Interrupt Cause Read */
 #define E1000_ICR_TXDW          0x00000001 /* Transmit desc written back */
-#define E1000_ICR_TXQE          0x00000002 /* Transmit Queue empty */
 #define E1000_ICR_LSC           0x00000004 /* Link Status Change */
 #define E1000_ICR_RXSEQ         0x00000008 /* rx sequence error */
 #define E1000_ICR_RXDMT0        0x00000010 /* rx desc min. threshold (0) */
-#define E1000_ICR_RXO           0x00000040 /* rx overrun */
 #define E1000_ICR_RXT0          0x00000080 /* rx timer intr (ring 0) */
-#define E1000_ICR_MDAC          0x00000200 /* MDIO access complete */
-#define E1000_ICR_RXCFG         0x00000400 /* Rx /c/ ordered set */
-#define E1000_ICR_GPI_EN0       0x00000800 /* GP Int 0 */
-#define E1000_ICR_GPI_EN1       0x00001000 /* GP Int 1 */
-#define E1000_ICR_GPI_EN2       0x00002000 /* GP Int 2 */
-#define E1000_ICR_GPI_EN3       0x00004000 /* GP Int 3 */
-#define E1000_ICR_TXD_LOW       0x00008000
-#define E1000_ICR_SRPD          0x00010000
-#define E1000_ICR_ACK           0x00020000 /* Receive Ack frame */
-#define E1000_ICR_MNG           0x00040000 /* Manageability event */
-#define E1000_ICR_DOCK          0x00080000 /* Dock/Undock */
 /* If this bit asserted, the driver should claim the interrupt */
 #define E1000_ICR_INT_ASSERTED  0x80000000
-/* queue 0 Rx descriptor FIFO parity error */
-#define E1000_ICR_RXD_FIFO_PAR0 0x00100000
-/* queue 0 Tx descriptor FIFO parity error */
-#define E1000_ICR_TXD_FIFO_PAR0 0x00200000
-/* host arb read buffer parity error */
-#define E1000_ICR_HOST_ARB_PAR  0x00400000
-#define E1000_ICR_PB_PAR        0x00800000 /* packet buffer parity error */
-/* queue 1 Rx descriptor FIFO parity error */
-#define E1000_ICR_RXD_FIFO_PAR1 0x01000000
-/* queue 1 Tx descriptor FIFO parity error */
-#define E1000_ICR_TXD_FIFO_PAR1 0x02000000
-/* FW changed the status of DISSW bit in the FWSM */
-#define E1000_ICR_DSW           0x00000020
 /* LAN connected device generates an interrupt */
-#define E1000_ICR_PHYINT        0x00001000
-#define E1000_ICR_EPRST         0x00100000 /* ME handware reset occurs */
 #define E1000_ICR_DOUTSYNC      0x10000000 /* NIC DMA out of sync */
 
 /* Extended Interrupt Cause Read */
@@ -425,7 +339,6 @@
 #define E1000_EICR_TX_QUEUE1    0x00000200 /* Tx Queue 1 Interrupt */
 #define E1000_EICR_TX_QUEUE2    0x00000400 /* Tx Queue 2 Interrupt */
 #define E1000_EICR_TX_QUEUE3    0x00000800 /* Tx Queue 3 Interrupt */
-#define E1000_EICR_TCP_TIMER    0x40000000 /* TCP Timer */
 #define E1000_EICR_OTHER        0x80000000 /* Interrupt Cause Active */
 /* TCP Timer */
 
@@ -455,13 +368,11 @@
 #define E1000_IMS_DOUTSYNC  E1000_ICR_DOUTSYNC /* NIC DMA out of sync */
 
 /* Extended Interrupt Mask Set */
-#define E1000_EIMS_TCP_TIMER    E1000_EICR_TCP_TIMER /* TCP Timer */
 #define E1000_EIMS_OTHER        E1000_EICR_OTHER   /* Interrupt Cause Active */
 
 /* Interrupt Cause Set */
 #define E1000_ICS_LSC       E1000_ICR_LSC       /* Link Status Change */
 #define E1000_ICS_RXDMT0    E1000_ICR_RXDMT0    /* rx desc min. threshold */
-#define E1000_ICS_DOUTSYNC  E1000_ICR_DOUTSYNC /* NIC DMA out of sync */
 
 /* Extended Interrupt Cause Set */
 
@@ -497,7 +408,6 @@
 #define E1000_ERR_MAC_INIT 5
 #define E1000_ERR_RESET   9
 #define E1000_ERR_MASTER_REQUESTS_PENDING 10
-#define E1000_ERR_HOST_INTERFACE_COMMAND 11
 #define E1000_BLK_PHY_RESET   12
 #define E1000_ERR_SWFW_SYNC 13
 #define E1000_NOT_IMPLEMENTED 14
@@ -517,30 +427,9 @@
 /* Flow Control */
 #define E1000_FCRTL_XONE 0x80000000     /* Enable XON frame transmission */
 
-/* Transmit Configuration Word */
-#define E1000_TXCW_ANE        0x80000000        /* Auto-neg enable */
-
-/* Receive Configuration Word */
-
-/* PCI Express Control */
-#define E1000_GCR_RXD_NO_SNOOP          0x00000001
-#define E1000_GCR_RXDSCW_NO_SNOOP       0x00000002
-#define E1000_GCR_RXDSCR_NO_SNOOP       0x00000004
-#define E1000_GCR_TXD_NO_SNOOP          0x00000008
-#define E1000_GCR_TXDSCW_NO_SNOOP       0x00000010
-#define E1000_GCR_TXDSCR_NO_SNOOP       0x00000020
-
-#define PCIE_NO_SNOOP_ALL (E1000_GCR_RXD_NO_SNOOP         | \
-			   E1000_GCR_RXDSCW_NO_SNOOP      | \
-			   E1000_GCR_RXDSCR_NO_SNOOP      | \
-			   E1000_GCR_TXD_NO_SNOOP         | \
-			   E1000_GCR_TXDSCW_NO_SNOOP      | \
-			   E1000_GCR_TXDSCR_NO_SNOOP)
-
 /* PHY Control Register */
 #define MII_CR_FULL_DUPLEX      0x0100  /* FDX =1, half duplex =0 */
 #define MII_CR_RESTART_AUTO_NEG 0x0200  /* Restart auto negotiation */
-#define MII_CR_POWER_DOWN       0x0800  /* Power down */
 #define MII_CR_AUTO_NEG_EN      0x1000  /* Auto Neg Enable */
 #define MII_CR_LOOPBACK         0x4000  /* 0 = normal, 1 = loopback */
 #define MII_CR_RESET            0x8000  /* 0 = normal, 1 = PHY reset */
@@ -670,10 +559,8 @@
 #define IGP_LED3_MODE           0x07000000
 
 /* PCI/PCI-X/PCI-EX Config space */
-#define PCI_HEADER_TYPE_REGISTER     0x0E
 #define PCIE_LINK_STATUS             0x12
 
-#define PCI_HEADER_TYPE_MULTIFUNC    0x80
 #define PCIE_LINK_WIDTH_MASK         0x3F0
 #define PCIE_LINK_WIDTH_SHIFT        4
 
diff --git a/drivers/net/igb/e1000_mac.h b/drivers/net/igb/e1000_mac.h
index 91461de083f..e5200def582 100644
--- a/drivers/net/igb/e1000_mac.h
+++ b/drivers/net/igb/e1000_mac.h
@@ -82,13 +82,8 @@ enum e1000_mng_mode {
 #define E1000_FWSM_MODE_MASK  0xE
 #define E1000_FWSM_MODE_SHIFT 1
 
-#define E1000_MNG_DHCP_COMMAND_TIMEOUT       10
 #define E1000_MNG_DHCP_COOKIE_STATUS_VLAN    0x2
 
-#define E1000_HICR_EN              0x01  /* Enable bit - RO */
-/* Driver sets this bit when done to put command in RAM */
-#define E1000_HICR_C               0x02
-
 extern void e1000_init_function_pointers_82575(struct e1000_hw *hw);
 extern u32 igb_hash_mc_addr(struct e1000_hw *hw, u8 *mc_addr);
 
diff --git a/drivers/net/igb/e1000_phy.c b/drivers/net/igb/e1000_phy.c
index ff0050e5d0b..de2d4862468 100644
--- a/drivers/net/igb/e1000_phy.c
+++ b/drivers/net/igb/e1000_phy.c
@@ -39,9 +39,6 @@ static s32  igb_wait_autoneg(struct e1000_hw *hw);
 /* Cable length tables */
 static const u16 e1000_m88_cable_length_table[] =
 	{ 0, 50, 80, 110, 140, 140, E1000_CABLE_LENGTH_UNDEFINED };
-#define M88E1000_CABLE_LENGTH_TABLE_SIZE \
-		(sizeof(e1000_m88_cable_length_table) / \
-		 sizeof(e1000_m88_cable_length_table[0]))
 
 static const u16 e1000_igp_2_cable_length_table[] =
     { 0, 0, 0, 0, 0, 0, 0, 0, 3, 5, 8, 11, 13, 16, 18, 21,
diff --git a/drivers/net/igb/e1000_regs.h b/drivers/net/igb/e1000_regs.h
index 1fb19ca081c..95ed8ec1577 100644
--- a/drivers/net/igb/e1000_regs.h
+++ b/drivers/net/igb/e1000_regs.h
@@ -73,7 +73,6 @@
 #define E1000_TCPTIMER 0x0104C  /* TCP Timer - RW */
 #define E1000_FCRTL    0x02160  /* Flow Control Receive Threshold Low - RW */
 #define E1000_FCRTH    0x02168  /* Flow Control Receive Threshold High - RW */
-#define E1000_RDFPCQ(_n)  (0x02430 + (0x4 * (_n)))
 #define E1000_FCRTV    0x02460  /* Flow Control Refresh Timer Value - RW */
 
 /* IEEE 1588 TIMESYNCH */
@@ -178,7 +177,6 @@ enum {
 				    : (0x0E018 + ((_n) * 0x40)))
 #define E1000_TXDCTL(_n)  ((_n) < 4 ? (0x03828 + ((_n) * 0x100)) \
 				    : (0x0E028 + ((_n) * 0x40)))
-#define E1000_TARC(_n)    (0x03840 + (_n << 8))
 #define E1000_DCA_TXCTRL(_n) (0x03814 + (_n << 8))
 #define E1000_DCA_RXCTRL(_n) (0x02814 + (_n << 8))
 #define E1000_TDWBAL(_n)  ((_n) < 4 ? (0x03838 + ((_n) * 0x100)) \
@@ -301,9 +299,7 @@ enum {
 #define E1000_MANC     0x05820  /* Management Control - RW */
 #define E1000_IPAV     0x05838  /* IP Address Valid - RW */
 #define E1000_WUPL     0x05900  /* Wakeup Packet Length - RW */
-#define E1000_HOST_IF  0x08800  /* Host Interface */
 
-#define E1000_MANC2H      0x05860 /* Management Control To Host - RW */
 #define E1000_SW_FW_SYNC  0x05B5C /* Software-Firmware Synchronization - RW */
 #define E1000_CCMCTL      0x05B48 /* CCM Control Register */
 #define E1000_GIOCTL      0x05B44 /* GIO Analog Control Register */
@@ -311,9 +307,7 @@ enum {
 #define E1000_FACTPS    0x05B30 /* Function Active and Power State to MNG */
 #define E1000_SWSM      0x05B50 /* SW Semaphore */
 #define E1000_FWSM      0x05B54 /* FW Semaphore */
-#define E1000_DCA_ID    0x05B70 /* DCA Requester ID Information - RO */
 #define E1000_DCA_CTRL  0x05B74 /* DCA Control - RW */
-#define E1000_HICR      0x08F00 /* Host Inteface Control */
 
 /* RSS registers */
 #define E1000_MRQC      0x05818 /* Multiple Receive Control - RW */
@@ -322,14 +316,6 @@ enum {
 #define E1000_IMIRVP    0x05AC0 /* Immediate Interrupt RX VLAN Priority - RW */
 /* MSI-X Allocation Register (_i) - RW */
 #define E1000_MSIXBM(_i)    (0x01600 + ((_i) * 4))
-/* MSI-X Table entry addr low reg 0 - RW */
-#define E1000_MSIXTADD(_i)  (0x0C000 + ((_i) * 0x10))
-/* MSI-X Table entry addr upper reg 0 - RW */
-#define E1000_MSIXTUADD(_i) (0x0C004 + ((_i) * 0x10))
-/* MSI-X Table entry message reg 0 - RW */
-#define E1000_MSIXTMSG(_i)  (0x0C008 + ((_i) * 0x10))
-/* MSI-X Table entry vector ctrl reg 0 - RW */
-#define E1000_MSIXVCTRL(_i) (0x0C00C + ((_i) * 0x10))
 /* Redirection Table - RW Array */
 #define E1000_RETA(_i)  (0x05C00 + ((_i) * 4))
 #define E1000_RSSRK(_i) (0x05C80 + ((_i) * 4)) /* RSS Random Key - RW Array */
diff --git a/drivers/net/igb/igb.h b/drivers/net/igb/igb.h
index bb8c35cec1a..1f09e042a5f 100644
--- a/drivers/net/igb/igb.h
+++ b/drivers/net/igb/igb.h
@@ -40,17 +40,9 @@
 
 struct igb_adapter;
 
-/* Interrupt defines */
-#define IGB_MIN_DYN_ITR 3000
-#define IGB_MAX_DYN_ITR 96000
-
 /* ((1000000000ns / (6000ints/s * 1024ns)) << 2 = 648 */
 #define IGB_START_ITR 648
 
-#define IGB_DYN_ITR_PACKET_THRESHOLD 2
-#define IGB_DYN_ITR_LENGTH_LOW 200
-#define IGB_DYN_ITR_LENGTH_HIGH 1000
-
 /* TX/RX descriptor defines */
 #define IGB_DEFAULT_TXD                  256
 #define IGB_MIN_TXD                       80
@@ -92,8 +84,6 @@ struct igb_adapter;
 #define IGB_RXBUFFER_512   512
 #define IGB_RXBUFFER_1024  1024
 #define IGB_RXBUFFER_2048  2048
-#define IGB_RXBUFFER_4096  4096
-#define IGB_RXBUFFER_8192  8192
 #define IGB_RXBUFFER_16384 16384
 
 /* Packet Buffer allocations */
@@ -286,10 +276,9 @@ struct igb_adapter {
 };
 
 #define IGB_FLAG_HAS_MSI           (1 << 0)
-#define IGB_FLAG_MSI_ENABLE        (1 << 1)
-#define IGB_FLAG_DCA_ENABLED       (1 << 2)
-#define IGB_FLAG_QUAD_PORT_A       (1 << 3)
-#define IGB_FLAG_NEED_CTX_IDX      (1 << 4)
+#define IGB_FLAG_DCA_ENABLED       (1 << 1)
+#define IGB_FLAG_QUAD_PORT_A       (1 << 2)
+#define IGB_FLAG_NEED_CTX_IDX      (1 << 3)
 
 enum e1000_state_t {
 	__IGB_TESTING,
diff --git a/drivers/net/igb/igb_ethtool.c b/drivers/net/igb/igb_ethtool.c
index bd050b1dab7..30b7bc008d9 100644
--- a/drivers/net/igb/igb_ethtool.c
+++ b/drivers/net/igb/igb_ethtool.c
@@ -1366,8 +1366,7 @@ static int igb_setup_desc_rings(struct igb_adapter *adapter)
 	wr32(E1000_RDH(0), 0);
 	wr32(E1000_RDT(0), 0);
 	rctl &= ~(E1000_RCTL_LBM_TCVR | E1000_RCTL_LBM_MAC);
-	rctl = E1000_RCTL_EN | E1000_RCTL_BAM | E1000_RCTL_SZ_2048 |
-		E1000_RCTL_RDMTS_HALF |
+	rctl = E1000_RCTL_EN | E1000_RCTL_BAM | E1000_RCTL_RDMTS_HALF |
 		(adapter->hw.mac.mc_filter_type << E1000_RCTL_MO_SHIFT);
 	wr32(E1000_RCTL, rctl);
 	wr32(E1000_SRRCTL(0), 0);
@@ -1855,9 +1854,6 @@ static int igb_set_wol(struct net_device *netdev, struct ethtool_wolinfo *wol)
 	return 0;
 }
 
-/* toggle LED 4 times per second = 2 "blinks" per second */
-#define IGB_ID_INTERVAL		(HZ/4)
-
 /* bit defines for adapter->led_status */
 #define IGB_LED_ON		0
 
diff --git a/drivers/net/igb/igb_main.c b/drivers/net/igb/igb_main.c
index 18bc5700faf..23209bd4f40 100644
--- a/drivers/net/igb/igb_main.c
+++ b/drivers/net/igb/igb_main.c
@@ -1305,7 +1305,7 @@ static int __devinit igb_probe(struct pci_dev *pdev,
 	hw->fc.original_type = e1000_fc_default;
 	hw->fc.type = e1000_fc_default;
 
-	adapter->itr_setting = 3;
+	adapter->itr_setting = IGB_DEFAULT_ITR;
 	adapter->itr = IGB_START_ITR;
 
 	igb_validate_mdi_setting(hw);
@@ -1366,7 +1366,7 @@ static int __devinit igb_probe(struct pci_dev *pdev,
 		dev_info(&pdev->dev, "DCA enabled\n");
 		/* Always use CB2 mode, difference is masked
 		 * in the CB driver. */
-		wr32(E1000_DCA_CTRL, 2);
+		wr32(E1000_DCA_CTRL, E1000_DCA_CTRL_DCA_MODE_CB2);
 		igb_setup_dca(adapter);
 	}
 #endif
@@ -1498,7 +1498,7 @@ static void __devexit igb_remove(struct pci_dev *pdev)
 		dev_info(&pdev->dev, "DCA disabled\n");
 		dca_remove_requester(&pdev->dev);
 		adapter->flags &= ~IGB_FLAG_DCA_ENABLED;
-		wr32(E1000_DCA_CTRL, 1);
+		wr32(E1000_DCA_CTRL, E1000_DCA_CTRL_DCA_MODE_DISABLE);
 	}
 #endif
 
@@ -3058,8 +3058,6 @@ static int igb_maybe_stop_tx(struct net_device *netdev,
 	return __igb_maybe_stop_tx(netdev, tx_ring, size);
 }
 
-#define TXD_USE_COUNT(S) (((S) >> (IGB_MAX_TXD_PWR)) + 1)
-
 static int igb_xmit_frame_ring_adv(struct sk_buff *skb,
 				   struct net_device *netdev,
 				   struct igb_ring *tx_ring)
@@ -3586,7 +3584,7 @@ static int __igb_notify_dca(struct device *dev, void *data)
 			break;
 		/* Always use CB2 mode, difference is masked
 		 * in the CB driver. */
-		wr32(E1000_DCA_CTRL, 2);
+		wr32(E1000_DCA_CTRL, E1000_DCA_CTRL_DCA_MODE_CB2);
 		if (dca_add_requester(dev) == 0) {
 			adapter->flags |= IGB_FLAG_DCA_ENABLED;
 			dev_info(&adapter->pdev->dev, "DCA enabled\n");
@@ -3601,7 +3599,7 @@ static int __igb_notify_dca(struct device *dev, void *data)
 			dca_remove_requester(dev);
 			dev_info(&adapter->pdev->dev, "DCA disabled\n");
 			adapter->flags &= ~IGB_FLAG_DCA_ENABLED;
-			wr32(E1000_DCA_CTRL, 1);
+			wr32(E1000_DCA_CTRL, E1000_DCA_CTRL_DCA_MODE_DISABLE);
 		}
 		break;
 	}
-- 
cgit v1.2.3-70-g09d2


From 85e8d004ecbc51ead6ae926e15973b42cf07b36e Mon Sep 17 00:00:00 2001
From: Alexander Duyck <alexander.h.duyck@intel.com>
Date: Mon, 16 Feb 2009 00:00:20 -0800
Subject: igb: transition driver to only using advanced descriptors

Currently the driver uses advanced descriptors for its main functionality,
but then uses legacy when testing.  This patch changes this so that
advanced descriptors are used throughout and all mentions of legacy
descriptors are removed.

Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com>
Acked-by: Peter P Waskiewicz Jr <peter.p.waskiewicz.jr@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 drivers/net/igb/e1000_hw.h    | 138 ------------------------------------------
 drivers/net/igb/igb.h         |   3 -
 drivers/net/igb/igb_ethtool.c |  51 +++++++++-------
 drivers/net/igb/igb_main.c    |   6 +-
 4 files changed, 32 insertions(+), 166 deletions(-)

(limited to 'drivers/net/igb')

diff --git a/drivers/net/igb/e1000_hw.h b/drivers/net/igb/e1000_hw.h
index bd86cebed37..10b872d3c9f 100644
--- a/drivers/net/igb/e1000_hw.h
+++ b/drivers/net/igb/e1000_hw.h
@@ -144,144 +144,6 @@ enum e1000_fc_type {
 	e1000_fc_default = 0xFF
 };
 
-
-/* Receive Descriptor */
-struct e1000_rx_desc {
-	__le64 buffer_addr; /* Address of the descriptor's data buffer */
-	__le16 length;      /* Length of data DMAed into data buffer */
-	__le16 csum;        /* Packet checksum */
-	u8  status;      /* Descriptor status */
-	u8  errors;      /* Descriptor Errors */
-	__le16 special;
-};
-
-/* Receive Descriptor - Extended */
-union e1000_rx_desc_extended {
-	struct {
-		__le64 buffer_addr;
-		__le64 reserved;
-	} read;
-	struct {
-		struct {
-			__le32 mrq;              /* Multiple Rx Queues */
-			union {
-				__le32 rss;            /* RSS Hash */
-				struct {
-					__le16 ip_id;  /* IP id */
-					__le16 csum;   /* Packet Checksum */
-				} csum_ip;
-			} hi_dword;
-		} lower;
-		struct {
-			__le32 status_error;     /* ext status/error */
-			__le16 length;
-			__le16 vlan;             /* VLAN tag */
-		} upper;
-	} wb;  /* writeback */
-};
-
-#define MAX_PS_BUFFERS 4
-/* Receive Descriptor - Packet Split */
-union e1000_rx_desc_packet_split {
-	struct {
-		/* one buffer for protocol header(s), three data buffers */
-		__le64 buffer_addr[MAX_PS_BUFFERS];
-	} read;
-	struct {
-		struct {
-			__le32 mrq;              /* Multiple Rx Queues */
-			union {
-				__le32 rss;              /* RSS Hash */
-				struct {
-					__le16 ip_id;    /* IP id */
-					__le16 csum;     /* Packet Checksum */
-				} csum_ip;
-			} hi_dword;
-		} lower;
-		struct {
-			__le32 status_error;     /* ext status/error */
-			__le16 length0;          /* length of buffer 0 */
-			__le16 vlan;             /* VLAN tag */
-		} middle;
-		struct {
-			__le16 header_status;
-			__le16 length[3];        /* length of buffers 1-3 */
-		} upper;
-		__le64 reserved;
-	} wb; /* writeback */
-};
-
-/* Transmit Descriptor */
-struct e1000_tx_desc {
-	__le64 buffer_addr;      /* Address of the descriptor's data buffer */
-	union {
-		__le32 data;
-		struct {
-			__le16 length;    /* Data buffer length */
-			u8 cso;        /* Checksum offset */
-			u8 cmd;        /* Descriptor control */
-		} flags;
-	} lower;
-	union {
-		__le32 data;
-		struct {
-			u8 status;     /* Descriptor status */
-			u8 css;        /* Checksum start */
-			__le16 special;
-		} fields;
-	} upper;
-};
-
-/* Offload Context Descriptor */
-struct e1000_context_desc {
-	union {
-		__le32 ip_config;
-		struct {
-			u8 ipcss;      /* IP checksum start */
-			u8 ipcso;      /* IP checksum offset */
-			__le16 ipcse;     /* IP checksum end */
-		} ip_fields;
-	} lower_setup;
-	union {
-		__le32 tcp_config;
-		struct {
-			u8 tucss;      /* TCP checksum start */
-			u8 tucso;      /* TCP checksum offset */
-			__le16 tucse;     /* TCP checksum end */
-		} tcp_fields;
-	} upper_setup;
-	__le32 cmd_and_length;
-	union {
-		__le32 data;
-		struct {
-			u8 status;     /* Descriptor status */
-			u8 hdr_len;    /* Header length */
-			__le16 mss;       /* Maximum segment size */
-		} fields;
-	} tcp_seg_setup;
-};
-
-/* Offload data descriptor */
-struct e1000_data_desc {
-	__le64 buffer_addr;   /* Address of the descriptor's buffer address */
-	union {
-		__le32 data;
-		struct {
-			__le16 length;    /* Data buffer length */
-			u8 typ_len_ext;
-			u8 cmd;
-		} flags;
-	} lower;
-	union {
-		__le32 data;
-		struct {
-			u8 status;     /* Descriptor status */
-			u8 popts;      /* Packet Options */
-			__le16 special;
-		} fields;
-	} upper;
-};
-
 /* Statistics counters collected by the MAC */
 struct e1000_hw_stats {
 	u64 crcerrs;
diff --git a/drivers/net/igb/igb.h b/drivers/net/igb/igb.h
index 1f09e042a5f..49fc0daf45a 100644
--- a/drivers/net/igb/igb.h
+++ b/drivers/net/igb/igb.h
@@ -180,9 +180,6 @@ struct igb_ring {
 	(&(((union e1000_adv_tx_desc *)((R).desc))[i]))
 #define E1000_TX_CTXTDESC_ADV(R, i)	    \
 	(&(((struct e1000_adv_tx_context_desc *)((R).desc))[i]))
-#define E1000_GET_DESC(R, i, type)	(&(((struct type *)((R).desc))[i]))
-#define E1000_TX_DESC(R, i)		E1000_GET_DESC(R, i, e1000_tx_desc)
-#define E1000_RX_DESC(R, i)		E1000_GET_DESC(R, i, e1000_rx_desc)
 
 /* board specific private data structure */
 
diff --git a/drivers/net/igb/igb_ethtool.c b/drivers/net/igb/igb_ethtool.c
index 30b7bc008d9..31f9a64773f 100644
--- a/drivers/net/igb/igb_ethtool.c
+++ b/drivers/net/igb/igb_ethtool.c
@@ -1272,6 +1272,7 @@ static int igb_setup_desc_rings(struct igb_adapter *adapter)
 	struct igb_ring *tx_ring = &adapter->test_tx_ring;
 	struct igb_ring *rx_ring = &adapter->test_rx_ring;
 	struct pci_dev *pdev = adapter->pdev;
+	struct igb_buffer *buffer_info;
 	u32 rctl;
 	int i, ret_val;
 
@@ -1288,7 +1289,7 @@ static int igb_setup_desc_rings(struct igb_adapter *adapter)
 		goto err_nomem;
 	}
 
-	tx_ring->size = tx_ring->count * sizeof(struct e1000_tx_desc);
+	tx_ring->size = tx_ring->count * sizeof(union e1000_adv_tx_desc);
 	tx_ring->size = ALIGN(tx_ring->size, 4096);
 	tx_ring->desc = pci_alloc_consistent(pdev, tx_ring->size,
 					     &tx_ring->dma);
@@ -1302,7 +1303,7 @@ static int igb_setup_desc_rings(struct igb_adapter *adapter)
 			((u64) tx_ring->dma & 0x00000000FFFFFFFF));
 	wr32(E1000_TDBAH(0), ((u64) tx_ring->dma >> 32));
 	wr32(E1000_TDLEN(0),
-			tx_ring->count * sizeof(struct e1000_tx_desc));
+			tx_ring->count * sizeof(union e1000_adv_tx_desc));
 	wr32(E1000_TDH(0), 0);
 	wr32(E1000_TDT(0), 0);
 	wr32(E1000_TCTL,
@@ -1311,27 +1312,31 @@ static int igb_setup_desc_rings(struct igb_adapter *adapter)
 			E1000_COLLISION_DISTANCE << E1000_COLD_SHIFT);
 
 	for (i = 0; i < tx_ring->count; i++) {
-		struct e1000_tx_desc *tx_desc = E1000_TX_DESC(*tx_ring, i);
+		union e1000_adv_tx_desc *tx_desc;
 		struct sk_buff *skb;
 		unsigned int size = 1024;
 
+		tx_desc = E1000_TX_DESC_ADV(*tx_ring, i);
 		skb = alloc_skb(size, GFP_KERNEL);
 		if (!skb) {
 			ret_val = 3;
 			goto err_nomem;
 		}
 		skb_put(skb, size);
-		tx_ring->buffer_info[i].skb = skb;
-		tx_ring->buffer_info[i].length = skb->len;
-		tx_ring->buffer_info[i].dma =
-			pci_map_single(pdev, skb->data, skb->len,
-				       PCI_DMA_TODEVICE);
-		tx_desc->buffer_addr = cpu_to_le64(tx_ring->buffer_info[i].dma);
-		tx_desc->lower.data = cpu_to_le32(skb->len);
-		tx_desc->lower.data |= cpu_to_le32(E1000_TXD_CMD_EOP |
-						   E1000_TXD_CMD_IFCS |
-						   E1000_TXD_CMD_RS);
-		tx_desc->upper.data = 0;
+		buffer_info = &tx_ring->buffer_info[i];
+		buffer_info->skb = skb;
+		buffer_info->length = skb->len;
+		buffer_info->dma = pci_map_single(pdev, skb->data, skb->len,
+		                                  PCI_DMA_TODEVICE);
+		tx_desc->read.buffer_addr = cpu_to_le64(buffer_info->dma);
+		tx_desc->read.olinfo_status = cpu_to_le32(skb->len) <<
+		                              E1000_ADVTXD_PAYLEN_SHIFT;
+		tx_desc->read.cmd_type_len = cpu_to_le32(skb->len);
+		tx_desc->read.cmd_type_len |= cpu_to_le32(E1000_TXD_CMD_EOP |
+		                                          E1000_TXD_CMD_IFCS |
+		                                          E1000_TXD_CMD_RS |
+		                                          E1000_ADVTXD_DTYP_DATA |
+		                                          E1000_ADVTXD_DCMD_DEXT);
 	}
 
 	/* Setup Rx descriptor ring and Rx buffers */
@@ -1347,7 +1352,7 @@ static int igb_setup_desc_rings(struct igb_adapter *adapter)
 		goto err_nomem;
 	}
 
-	rx_ring->size = rx_ring->count * sizeof(struct e1000_rx_desc);
+	rx_ring->size = rx_ring->count * sizeof(union e1000_adv_rx_desc);
 	rx_ring->desc = pci_alloc_consistent(pdev, rx_ring->size,
 					     &rx_ring->dma);
 	if (!rx_ring->desc) {
@@ -1369,12 +1374,14 @@ static int igb_setup_desc_rings(struct igb_adapter *adapter)
 	rctl = E1000_RCTL_EN | E1000_RCTL_BAM | E1000_RCTL_RDMTS_HALF |
 		(adapter->hw.mac.mc_filter_type << E1000_RCTL_MO_SHIFT);
 	wr32(E1000_RCTL, rctl);
-	wr32(E1000_SRRCTL(0), 0);
+	wr32(E1000_SRRCTL(0), E1000_SRRCTL_DESCTYPE_ADV_ONEBUF);
 
 	for (i = 0; i < rx_ring->count; i++) {
-		struct e1000_rx_desc *rx_desc = E1000_RX_DESC(*rx_ring, i);
+		union e1000_adv_rx_desc *rx_desc;
 		struct sk_buff *skb;
 
+		buffer_info = &rx_ring->buffer_info[i];
+		rx_desc = E1000_RX_DESC_ADV(*rx_ring, i);
 		skb = alloc_skb(IGB_RXBUFFER_2048 + NET_IP_ALIGN,
 				GFP_KERNEL);
 		if (!skb) {
@@ -1382,11 +1389,11 @@ static int igb_setup_desc_rings(struct igb_adapter *adapter)
 			goto err_nomem;
 		}
 		skb_reserve(skb, NET_IP_ALIGN);
-		rx_ring->buffer_info[i].skb = skb;
-		rx_ring->buffer_info[i].dma =
-			pci_map_single(pdev, skb->data, IGB_RXBUFFER_2048,
-				       PCI_DMA_FROMDEVICE);
-		rx_desc->buffer_addr = cpu_to_le64(rx_ring->buffer_info[i].dma);
+		buffer_info->skb = skb;
+		buffer_info->dma = pci_map_single(pdev, skb->data,
+		                                  IGB_RXBUFFER_2048,
+		                                  PCI_DMA_FROMDEVICE);
+		rx_desc->read.pkt_addr = cpu_to_le64(buffer_info->dma);
 		memset(skb->data, 0x00, skb->len);
 	}
 
diff --git a/drivers/net/igb/igb_main.c b/drivers/net/igb/igb_main.c
index 23209bd4f40..43f489aba19 100644
--- a/drivers/net/igb/igb_main.c
+++ b/drivers/net/igb/igb_main.c
@@ -994,7 +994,7 @@ void igb_reset(struct igb_adapter *adapter)
 		/* the tx fifo also stores 16 bytes of information about the tx
 		 * but don't include ethernet FCS because hardware appends it */
 		min_tx_space = (adapter->max_frame_size +
-				sizeof(struct e1000_tx_desc) -
+				sizeof(union e1000_adv_tx_desc) -
 				ETH_FCS_LEN) * 2;
 		min_tx_space = ALIGN(min_tx_space, 1024);
 		min_tx_space >>= 10;
@@ -1704,7 +1704,7 @@ int igb_setup_tx_resources(struct igb_adapter *adapter,
 	memset(tx_ring->buffer_info, 0, size);
 
 	/* round up to nearest 4K */
-	tx_ring->size = tx_ring->count * sizeof(struct e1000_tx_desc);
+	tx_ring->size = tx_ring->count * sizeof(union e1000_adv_tx_desc);
 	tx_ring->size = ALIGN(tx_ring->size, 4096);
 
 	tx_ring->desc = pci_alloc_consistent(pdev, tx_ring->size,
@@ -1773,7 +1773,7 @@ static void igb_configure_tx(struct igb_adapter *adapter)
 		struct igb_ring *ring = &adapter->tx_ring[i];
 		j = ring->reg_idx;
 		wr32(E1000_TDLEN(j),
-		     ring->count * sizeof(struct e1000_tx_desc));
+		     ring->count * sizeof(union e1000_adv_tx_desc));
 		tdba = ring->dma;
 		wr32(E1000_TDBAL(j),
 		     tdba & 0x00000000ffffffffULL);
-- 
cgit v1.2.3-70-g09d2


From 5fbbcb79e5371d99565826a352c1003d0f1f0678 Mon Sep 17 00:00:00 2001
From: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Date: Wed, 18 Feb 2009 17:56:25 -0800
Subject: igb: remove LRO Kconfig option

To match ixgbe GRO functionality, we remove the LRO (which is now GRO)
Kconfig option which enables GRO by default.

Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 drivers/net/Kconfig        | 8 --------
 drivers/net/igb/igb_main.c | 2 --
 2 files changed, 10 deletions(-)

(limited to 'drivers/net/igb')

diff --git a/drivers/net/Kconfig b/drivers/net/Kconfig
index 3fed3347f4b..683a5ac4e12 100644
--- a/drivers/net/Kconfig
+++ b/drivers/net/Kconfig
@@ -2019,14 +2019,6 @@ config IGB
          To compile this driver as a module, choose M here. The module
          will be called igb.
 
-config IGB_LRO 
-	bool "Use software LRO"
-	depends on IGB && INET
-	---help---
-	  Say Y here if you want to use large receive offload. 
-
-	  If in doubt, say N.
-
 config IGB_DCA
 	bool "Direct Cache Access (DCA) Support"
 	default y
diff --git a/drivers/net/igb/igb_main.c b/drivers/net/igb/igb_main.c
index 43f489aba19..457f12e345c 100644
--- a/drivers/net/igb/igb_main.c
+++ b/drivers/net/igb/igb_main.c
@@ -1248,9 +1248,7 @@ static int __devinit igb_probe(struct pci_dev *pdev,
 	netdev->features |= NETIF_F_TSO;
 	netdev->features |= NETIF_F_TSO6;
 
-#ifdef CONFIG_IGB_LRO
 	netdev->features |= NETIF_F_GRO;
-#endif
 
 	netdev->vlan_features |= NETIF_F_TSO;
 	netdev->vlan_features |= NETIF_F_TSO6;
-- 
cgit v1.2.3-70-g09d2


From 9107584ecdda31981557034cccf5185afced3e0e Mon Sep 17 00:00:00 2001
From: Hannes Eder <hannes@hanneseder.net>
Date: Wed, 18 Feb 2009 19:36:04 -0800
Subject: drivers/net/igb: fix sparse warning: symbol shadows an earlier one

Impact: Move variable declaration as far inner as possible.

Fix this sparse warning:
  drivers/net/igb/igb_main.c:1895:21: warning: symbol 'j' shadows an earlier one
  drivers/net/igb/igb_main.c:1855:16: originally declared here

Signed-off-by: Hannes Eder <hannes@hanneseder.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 drivers/net/igb/igb_main.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

(limited to 'drivers/net/igb')

diff --git a/drivers/net/igb/igb_main.c b/drivers/net/igb/igb_main.c
index 457f12e345c..87eed88d958 100644
--- a/drivers/net/igb/igb_main.c
+++ b/drivers/net/igb/igb_main.c
@@ -1971,7 +1971,7 @@ static void igb_configure_rx(struct igb_adapter *adapter)
 	struct e1000_hw *hw = &adapter->hw;
 	u32 rctl, rxcsum;
 	u32 rxdctl;
-	int i, j;
+	int i;
 
 	/* disable receives while setting up the descriptors */
 	rctl = rd32(E1000_RCTL);
@@ -1986,7 +1986,7 @@ static void igb_configure_rx(struct igb_adapter *adapter)
 	 * the Base and Length of the Rx Descriptor Ring */
 	for (i = 0; i < adapter->num_rx_queues; i++) {
 		struct igb_ring *ring = &adapter->rx_ring[i];
-		j = ring->reg_idx;
+		int j = ring->reg_idx;
 		rdba = ring->dma;
 		wr32(E1000_RDBAL(j),
 		     rdba & 0x00000000ffffffffULL);
-- 
cgit v1.2.3-70-g09d2


From 46544258de71d7e32342ee71a25146ec6e2e6e47 Mon Sep 17 00:00:00 2001
From: Alexander Duyck <alexander.h.duyck@intel.com>
Date: Thu, 19 Feb 2009 20:39:04 -0800
Subject: igb: update napi polling to consolidate function and return correct
 values

igb is currently not returning the correct values for napi.  In addition it
is doing more work than necessary since it will not exit polling until
work_done is equal to zero.

This patch makes the following changes:
1.  Consolidates msi-x and non-msi polling routines.
2.  Corrects return values for polling routines.

Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 drivers/net/igb/igb_main.c | 77 ++++++++++++++++++----------------------------
 1 file changed, 30 insertions(+), 47 deletions(-)

(limited to 'drivers/net/igb')

diff --git a/drivers/net/igb/igb_main.c b/drivers/net/igb/igb_main.c
index 87eed88d958..5a6fff622e4 100644
--- a/drivers/net/igb/igb_main.c
+++ b/drivers/net/igb/igb_main.c
@@ -106,7 +106,6 @@ static irqreturn_t igb_intr_msi(int irq, void *);
 static irqreturn_t igb_msix_other(int irq, void *);
 static irqreturn_t igb_msix_rx(int irq, void *);
 static irqreturn_t igb_msix_tx(int irq, void *);
-static int igb_clean_rx_ring_msix(struct napi_struct *, int);
 #ifdef CONFIG_IGB_DCA
 static void igb_update_rx_dca(struct igb_ring *);
 static void igb_update_tx_dca(struct igb_ring *);
@@ -3688,50 +3687,35 @@ static irqreturn_t igb_intr(int irq, void *data)
 	return IRQ_HANDLED;
 }
 
-/**
- * igb_poll - NAPI Rx polling callback
- * @napi: napi polling structure
- * @budget: count of how many packets we should handle
- **/
-static int igb_poll(struct napi_struct *napi, int budget)
+static inline void igb_rx_irq_enable(struct igb_ring *rx_ring)
 {
-	struct igb_ring *rx_ring = container_of(napi, struct igb_ring, napi);
 	struct igb_adapter *adapter = rx_ring->adapter;
-	struct net_device *netdev = adapter->netdev;
-	int tx_clean_complete, work_done = 0;
-
-	/* this poll routine only supports one tx and one rx queue */
-#ifdef CONFIG_IGB_DCA
-	if (adapter->flags & IGB_FLAG_DCA_ENABLED)
-		igb_update_tx_dca(&adapter->tx_ring[0]);
-#endif
-	tx_clean_complete = igb_clean_tx_irq(&adapter->tx_ring[0]);
-
-#ifdef CONFIG_IGB_DCA
-	if (adapter->flags & IGB_FLAG_DCA_ENABLED)
-		igb_update_rx_dca(&adapter->rx_ring[0]);
-#endif
-	igb_clean_rx_irq_adv(&adapter->rx_ring[0], &work_done, budget);
+	struct e1000_hw *hw = &adapter->hw;
 
-	/* If no Tx and not enough Rx work done, exit the polling mode */
-	if ((tx_clean_complete && (work_done < budget)) ||
-	    !netif_running(netdev)) {
-		if (adapter->itr_setting & 3)
+	if (adapter->itr_setting & 3) {
+		if (adapter->num_rx_queues == 1)
 			igb_set_itr(adapter);
-		napi_complete(napi);
-		if (!test_bit(__IGB_DOWN, &adapter->state))
-			igb_irq_enable(adapter);
-		return 0;
+		else
+			igb_update_ring_itr(rx_ring);
 	}
 
-	return 1;
+	if (!test_bit(__IGB_DOWN, &adapter->state)) {
+		if (adapter->msix_entries)
+			wr32(E1000_EIMS, rx_ring->eims_value);
+		else
+			igb_irq_enable(adapter);
+	}
 }
 
-static int igb_clean_rx_ring_msix(struct napi_struct *napi, int budget)
+/**
+ * igb_poll - NAPI Rx polling callback
+ * @napi: napi polling structure
+ * @budget: count of how many packets we should handle
+ **/
+static int igb_poll(struct napi_struct *napi, int budget)
 {
 	struct igb_ring *rx_ring = container_of(napi, struct igb_ring, napi);
 	struct igb_adapter *adapter = rx_ring->adapter;
-	struct e1000_hw *hw = &adapter->hw;
 	struct net_device *netdev = adapter->netdev;
 	int work_done = 0;
 
@@ -3741,23 +3725,22 @@ static int igb_clean_rx_ring_msix(struct napi_struct *napi, int budget)
 #endif
 	igb_clean_rx_irq_adv(rx_ring, &work_done, budget);
 
+	if (rx_ring->buddy) {
+#ifdef CONFIG_IGB_DCA
+		if (adapter->flags & IGB_FLAG_DCA_ENABLED)
+			igb_update_tx_dca(rx_ring->buddy);
+#endif
+		if (!igb_clean_tx_irq(rx_ring->buddy))
+			work_done = budget;
+	}
+
 	/* If not enough Rx work done, exit the polling mode */
-	if ((work_done == 0) || !netif_running(netdev)) {
+	if ((work_done < budget) || !netif_running(netdev)) {
 		napi_complete(napi);
-
-		if (adapter->itr_setting & 3) {
-			if (adapter->num_rx_queues == 1)
-				igb_set_itr(adapter);
-			else
-				igb_update_ring_itr(rx_ring);
-		}
-		if (!test_bit(__IGB_DOWN, &adapter->state))
-			wr32(E1000_EIMS, rx_ring->eims_value);
-
-		return 0;
+		igb_rx_irq_enable(rx_ring);
 	}
 
-	return 1;
+	return work_done;
 }
 
 /**
-- 
cgit v1.2.3-70-g09d2


From 1bfaf07bb1d7201d3c6cb984bccd9c2416e19b6c Mon Sep 17 00:00:00 2001
From: Alexander Duyck <alexander.h.duyck@intel.com>
Date: Thu, 19 Feb 2009 20:39:23 -0800
Subject: igb: add vfs_allocated_count as placeholder for number of vfs

This is the first step in supporting sr-iov.  The vf_allocated_count value
will be 0 until we actually have vfs present.  In the meantime it
represents an offset value for the start of the queues.

Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 drivers/net/igb/igb.h      |  9 ++++++---
 drivers/net/igb/igb_main.c | 17 +++++++++++------
 2 files changed, 17 insertions(+), 9 deletions(-)

(limited to 'drivers/net/igb')

diff --git a/drivers/net/igb/igb.h b/drivers/net/igb/igb.h
index 49fc0daf45a..3d3e5f6cd31 100644
--- a/drivers/net/igb/igb.h
+++ b/drivers/net/igb/igb.h
@@ -57,8 +57,10 @@ struct igb_adapter;
 #define IGB_MIN_ITR_USECS                 10
 
 /* Transmit and receive queues */
-#define IGB_MAX_RX_QUEUES                  4
-#define IGB_MAX_TX_QUEUES                  4
+#define IGB_MAX_RX_QUEUES     (adapter->vfs_allocated_count ? \
+                               (adapter->vfs_allocated_count > 6 ? 1 : 2) : 4)
+#define IGB_MAX_TX_QUEUES     IGB_MAX_RX_QUEUES
+#define IGB_ABS_MAX_TX_QUEUES     4
 
 /* RX descriptor control thresholds.
  * PTHRESH - MAC will consider prefetch if it has fewer than this number of
@@ -267,9 +269,10 @@ struct igb_adapter {
 	unsigned int flags;
 	u32 eeprom_wol;
 
-	struct igb_ring *multi_tx_table[IGB_MAX_TX_QUEUES];
+	struct igb_ring *multi_tx_table[IGB_ABS_MAX_TX_QUEUES];
 	unsigned int tx_ring_count;
 	unsigned int rx_ring_count;
+	unsigned int vfs_allocated_count;
 };
 
 #define IGB_FLAG_HAS_MSI           (1 << 0)
diff --git a/drivers/net/igb/igb_main.c b/drivers/net/igb/igb_main.c
index 5a6fff622e4..0dcc0c109b9 100644
--- a/drivers/net/igb/igb_main.c
+++ b/drivers/net/igb/igb_main.c
@@ -312,6 +312,7 @@ module_exit(igb_exit_module);
 static void igb_cache_ring_register(struct igb_adapter *adapter)
 {
 	int i;
+	unsigned int rbase_offset = adapter->vfs_allocated_count;
 
 	switch (adapter->hw.mac.type) {
 	case e1000_82576:
@@ -321,9 +322,11 @@ static void igb_cache_ring_register(struct igb_adapter *adapter)
 		 * and continue consuming queues in the same sequence
 		 */
 		for (i = 0; i < adapter->num_rx_queues; i++)
-			adapter->rx_ring[i].reg_idx = Q_IDX_82576(i);
+			adapter->rx_ring[i].reg_idx = rbase_offset +
+			                              Q_IDX_82576(i);
 		for (i = 0; i < adapter->num_tx_queues; i++)
-			adapter->tx_ring[i].reg_idx = Q_IDX_82576(i);
+			adapter->tx_ring[i].reg_idx = rbase_offset +
+			                              Q_IDX_82576(i);
 		break;
 	case e1000_82575:
 	default:
@@ -423,7 +426,7 @@ static void igb_assign_vector(struct igb_adapter *adapter, int rx_queue,
 		   a vector number along with a "valid" bit.  Sadly, the layout
 		   of the table is somewhat counterintuitive. */
 		if (rx_queue > IGB_N0_QUEUE) {
-			index = (rx_queue >> 1);
+			index = (rx_queue >> 1) + adapter->vfs_allocated_count;
 			ivar = array_rd32(E1000_IVAR0, index);
 			if (rx_queue & 0x1) {
 				/* vector goes into third byte of register */
@@ -438,7 +441,7 @@ static void igb_assign_vector(struct igb_adapter *adapter, int rx_queue,
 			array_wr32(E1000_IVAR0, index, ivar);
 		}
 		if (tx_queue > IGB_N0_QUEUE) {
-			index = (tx_queue >> 1);
+			index = (tx_queue >> 1) + adapter->vfs_allocated_count;
 			ivar = array_rd32(E1000_IVAR0, index);
 			if (tx_queue & 0x1) {
 				/* vector goes into high byte of register */
@@ -1157,7 +1160,8 @@ static int __devinit igb_probe(struct pci_dev *pdev,
 	pci_save_state(pdev);
 
 	err = -ENOMEM;
-	netdev = alloc_etherdev_mq(sizeof(struct igb_adapter), IGB_MAX_TX_QUEUES);
+	netdev = alloc_etherdev_mq(sizeof(struct igb_adapter),
+	                           IGB_ABS_MAX_TX_QUEUES);
 	if (!netdev)
 		goto err_alloc_etherdev;
 
@@ -2029,6 +2033,7 @@ static void igb_configure_rx(struct igb_adapter *adapter)
 				writel(reta.dword,
 				       hw->hw_addr + E1000_RETA(0) + (j & ~3));
 		}
+
 		mrqc = E1000_MRQC_ENABLE_RSS_4Q;
 
 		/* Fill out hash function seeds */
@@ -3150,7 +3155,7 @@ static int igb_xmit_frame_adv(struct sk_buff *skb, struct net_device *netdev)
 	struct igb_ring *tx_ring;
 
 	int r_idx = 0;
-	r_idx = skb->queue_mapping & (IGB_MAX_TX_QUEUES - 1);
+	r_idx = skb->queue_mapping & (IGB_ABS_MAX_TX_QUEUES - 1);
 	tx_ring = adapter->multi_tx_table[r_idx];
 
 	/* This goes back to the question of how to logically map a tx queue
-- 
cgit v1.2.3-70-g09d2


From e173952257d7a3d3c64de3039d9fc02d1fbf49c3 Mon Sep 17 00:00:00 2001
From: Alexander Duyck <alexander.h.duyck@intel.com>
Date: Thu, 19 Feb 2009 20:39:44 -0800
Subject: igb: add pf side of VMDq support

Add the pf portion of vmdq support.  This provides enough support so that
VMDq is enabled, and the pf is functional without enabling vfs.

Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 drivers/net/igb/e1000_82575.h   |  26 ++++++
 drivers/net/igb/e1000_defines.h |   2 +
 drivers/net/igb/e1000_regs.h    |   7 +-
 drivers/net/igb/igb.h           |   3 +-
 drivers/net/igb/igb_ethtool.c   |   2 +-
 drivers/net/igb/igb_main.c      | 174 ++++++++++++++++++++++++++++++++++++----
 6 files changed, 195 insertions(+), 19 deletions(-)

(limited to 'drivers/net/igb')

diff --git a/drivers/net/igb/e1000_82575.h b/drivers/net/igb/e1000_82575.h
index 49b41c92a8c..116714f346b 100644
--- a/drivers/net/igb/e1000_82575.h
+++ b/drivers/net/igb/e1000_82575.h
@@ -40,8 +40,11 @@ extern void igb_rx_fifo_flush_82575(struct e1000_hw *hw);
 #define E1000_SRRCTL_BSIZEHDRSIZE_SHIFT                 2  /* Shift _left_ */
 #define E1000_SRRCTL_DESCTYPE_ADV_ONEBUF                0x02000000
 #define E1000_SRRCTL_DESCTYPE_HDR_SPLIT_ALWAYS          0x0A000000
+#define E1000_SRRCTL_DROP_EN                            0x80000000
 
 #define E1000_MRQC_ENABLE_RSS_4Q            0x00000002
+#define E1000_MRQC_ENABLE_VMDQ              0x00000003
+#define E1000_MRQC_ENABLE_VMDQ_RSS_2Q       0x00000005
 #define E1000_MRQC_RSS_FIELD_IPV4_UDP       0x00400000
 #define E1000_MRQC_RSS_FIELD_IPV6_UDP       0x00800000
 #define E1000_MRQC_RSS_FIELD_IPV6_UDP_EX    0x01000000
@@ -159,4 +162,27 @@ struct e1000_adv_tx_context_desc {
 #define E1000_DCA_TXCTRL_CPUID_SHIFT 24 /* Tx CPUID now in the last byte */
 #define E1000_DCA_RXCTRL_CPUID_SHIFT 24 /* Rx CPUID now in the last byte */
 
+/* Easy defines for setting default pool, would normally be left a zero */
+#define E1000_VT_CTL_DEFAULT_POOL_SHIFT 7
+#define E1000_VT_CTL_DEFAULT_POOL_MASK  (0x7 << E1000_VT_CTL_DEFAULT_POOL_SHIFT)
+
+/* Other useful VMD_CTL register defines */
+#define E1000_VT_CTL_IGNORE_MAC         (1 << 28)
+#define E1000_VT_CTL_DISABLE_DEF_POOL   (1 << 29)
+#define E1000_VT_CTL_VM_REPL_EN         (1 << 30)
+
+/* Per VM Offload register setup */
+#define E1000_VMOLR_RLPML_MASK 0x00003FFF /* Long Packet Maximum Length mask */
+#define E1000_VMOLR_LPE        0x00010000 /* Accept Long packet */
+#define E1000_VMOLR_RSSE       0x00020000 /* Enable RSS */
+#define E1000_VMOLR_AUPE       0x01000000 /* Accept untagged packets */
+#define E1000_VMOLR_ROMPE      0x02000000 /* Accept overflow multicast */
+#define E1000_VMOLR_ROPE       0x04000000 /* Accept overflow unicast */
+#define E1000_VMOLR_BAM        0x08000000 /* Accept Broadcast packets */
+#define E1000_VMOLR_MPME       0x10000000 /* Multicast promiscuous mode */
+#define E1000_VMOLR_STRVLAN    0x40000000 /* Vlan stripping enable */
+
+#define ALL_QUEUES   0xFFFF
+
+
 #endif
diff --git a/drivers/net/igb/e1000_defines.h b/drivers/net/igb/e1000_defines.h
index 5a32a7004e0..d7613db7800 100644
--- a/drivers/net/igb/e1000_defines.h
+++ b/drivers/net/igb/e1000_defines.h
@@ -399,6 +399,8 @@
 #define E1000_RAH_AV  0x80000000        /* Receive descriptor valid */
 #define E1000_RAL_MAC_ADDR_LEN 4
 #define E1000_RAH_MAC_ADDR_LEN 2
+#define E1000_RAH_POOL_MASK 0x03FC0000
+#define E1000_RAH_POOL_1 0x00040000
 
 /* Error Codes */
 #define E1000_ERR_NVM      1
diff --git a/drivers/net/igb/e1000_regs.h b/drivers/net/igb/e1000_regs.h
index 95ed8ec1577..5d00c864d10 100644
--- a/drivers/net/igb/e1000_regs.h
+++ b/drivers/net/igb/e1000_regs.h
@@ -292,7 +292,7 @@ enum {
 #define E1000_RAH(_i)  (((_i) <= 15) ? (0x05404 + ((_i) * 8)) : \
                                        (0x054E4 + ((_i - 16) * 8)))
 #define E1000_VFTA     0x05600  /* VLAN Filter Table Array - RW Array */
-#define E1000_VMD_CTL  0x0581C  /* VMDq Control - RW */
+#define E1000_VT_CTL   0x0581C  /* VMDq Control - RW */
 #define E1000_WUC      0x05800  /* Wakeup Control - RW */
 #define E1000_WUFC     0x05808  /* Wakeup Filter Control - RW */
 #define E1000_WUS      0x05810  /* Wakeup Status - RO */
@@ -320,6 +320,11 @@ enum {
 #define E1000_RETA(_i)  (0x05C00 + ((_i) * 4))
 #define E1000_RSSRK(_i) (0x05C80 + ((_i) * 4)) /* RSS Random Key - RW Array */
 
+/* VT Registers */
+#define E1000_QDE       0x02408 /* Queue Drop Enable - RW */
+/* These act per VF so an array friendly macro is used */
+#define E1000_VMOLR(_n)        (0x05AD0 + (4 * (_n)))
+
 #define wr32(reg, value) (writel(value, hw->hw_addr + reg))
 #define rd32(reg) (readl(hw->hw_addr + reg))
 #define wrfl() ((void)rd32(E1000_STATUS))
diff --git a/drivers/net/igb/igb.h b/drivers/net/igb/igb.h
index 3d3e5f6cd31..d925f7dd7fb 100644
--- a/drivers/net/igb/igb.h
+++ b/drivers/net/igb/igb.h
@@ -88,8 +88,7 @@ struct igb_adapter;
 #define IGB_RXBUFFER_2048  2048
 #define IGB_RXBUFFER_16384 16384
 
-/* Packet Buffer allocations */
-
+#define MAX_STD_JUMBO_FRAME_SIZE 9234
 
 /* How many Tx Descriptors do we need to call netif_wake_queue ? */
 #define IGB_TX_QUEUE_WAKE	16
diff --git a/drivers/net/igb/igb_ethtool.c b/drivers/net/igb/igb_ethtool.c
index 31f9a64773f..34a8a0fadf2 100644
--- a/drivers/net/igb/igb_ethtool.c
+++ b/drivers/net/igb/igb_ethtool.c
@@ -398,7 +398,7 @@ static void igb_get_regs(struct net_device *netdev,
 	regs_buff[34] = rd32(E1000_RLPML);
 	regs_buff[35] = rd32(E1000_RFCTL);
 	regs_buff[36] = rd32(E1000_MRQC);
-	regs_buff[37] = rd32(E1000_VMD_CTL);
+	regs_buff[37] = rd32(E1000_VT_CTL);
 
 	/* Transmit */
 	regs_buff[38] = rd32(E1000_TCTL);
diff --git a/drivers/net/igb/igb_main.c b/drivers/net/igb/igb_main.c
index 0dcc0c109b9..c7c7eeba336 100644
--- a/drivers/net/igb/igb_main.c
+++ b/drivers/net/igb/igb_main.c
@@ -122,6 +122,10 @@ static void igb_vlan_rx_register(struct net_device *, struct vlan_group *);
 static void igb_vlan_rx_add_vid(struct net_device *, u16);
 static void igb_vlan_rx_kill_vid(struct net_device *, u16);
 static void igb_restore_vlan(struct igb_adapter *);
+static inline void igb_set_rah_pool(struct e1000_hw *, int , int);
+static void igb_set_mc_list_pools(struct igb_adapter *, int, u16);
+static inline void igb_set_vmolr(struct e1000_hw *, int);
+static inline void igb_set_vf_rlpml(struct igb_adapter *, int, int);
 
 static int igb_suspend(struct pci_dev *, pm_message_t);
 #ifdef CONFIG_PM
@@ -888,6 +892,9 @@ int igb_up(struct igb_adapter *adapter)
 	if (adapter->msix_entries)
 		igb_configure_msix(adapter);
 
+	igb_set_rah_pool(hw, adapter->vfs_allocated_count, 0);
+	igb_set_vmolr(hw, adapter->vfs_allocated_count);
+
 	/* Clear any pending interrupts. */
 	rd32(E1000_ICR);
 	igb_irq_enable(adapter);
@@ -1617,6 +1624,9 @@ static int igb_open(struct net_device *netdev)
 	 * clean_rx handler before we do so.  */
 	igb_configure(adapter);
 
+	igb_set_rah_pool(hw, adapter->vfs_allocated_count, 0);
+	igb_set_vmolr(hw, adapter->vfs_allocated_count);
+
 	err = igb_request_irq(adapter);
 	if (err)
 		goto err_req_irq;
@@ -1797,10 +1807,11 @@ static void igb_configure_tx(struct igb_adapter *adapter)
 		wr32(E1000_DCA_TXCTRL(j), txctrl);
 	}
 
-	/* Use the default values for the Tx Inter Packet Gap (IPG) timer */
+	/* disable queue 0 to prevent tail bump w/o re-configuration */
+	if (adapter->vfs_allocated_count)
+		wr32(E1000_TXDCTL(0), 0);
 
 	/* Program the Transmit Control Register */
-
 	tctl = rd32(E1000_TCTL);
 	tctl &= ~E1000_TCTL_CT;
 	tctl |= E1000_TCTL_PSP | E1000_TCTL_RTLC |
@@ -1954,6 +1965,30 @@ static void igb_setup_rctl(struct igb_adapter *adapter)
 		srrctl |= E1000_SRRCTL_DESCTYPE_ADV_ONEBUF;
 	}
 
+	/* Attention!!!  For SR-IOV PF driver operations you must enable
+	 * queue drop for all VF and PF queues to prevent head of line blocking
+	 * if an un-trusted VF does not provide descriptors to hardware.
+	 */
+	if (adapter->vfs_allocated_count) {
+		u32 vmolr;
+
+		j = adapter->rx_ring[0].reg_idx;
+
+		/* set all queue drop enable bits */
+		wr32(E1000_QDE, ALL_QUEUES);
+		srrctl |= E1000_SRRCTL_DROP_EN;
+
+		/* disable queue 0 to prevent tail write w/o re-config */
+		wr32(E1000_RXDCTL(0), 0);
+
+		vmolr = rd32(E1000_VMOLR(j));
+		if (rctl & E1000_RCTL_LPE)
+			vmolr |= E1000_VMOLR_LPE;
+		if (adapter->num_rx_queues > 0)
+			vmolr |= E1000_VMOLR_RSSE;
+		wr32(E1000_VMOLR(j), vmolr);
+	}
+
 	for (i = 0; i < adapter->num_rx_queues; i++) {
 		j = adapter->rx_ring[i].reg_idx;
 		wr32(E1000_SRRCTL(j), srrctl);
@@ -1962,6 +1997,54 @@ static void igb_setup_rctl(struct igb_adapter *adapter)
 	wr32(E1000_RCTL, rctl);
 }
 
+/**
+ * igb_rlpml_set - set maximum receive packet size
+ * @adapter: board private structure
+ *
+ * Configure maximum receivable packet size.
+ **/
+static void igb_rlpml_set(struct igb_adapter *adapter)
+{
+	u32 max_frame_size = adapter->max_frame_size;
+	struct e1000_hw *hw = &adapter->hw;
+	u16 pf_id = adapter->vfs_allocated_count;
+
+	if (adapter->vlgrp)
+		max_frame_size += VLAN_TAG_SIZE;
+
+	/* if vfs are enabled we set RLPML to the largest possible request
+	 * size and set the VMOLR RLPML to the size we need */
+	if (pf_id) {
+		igb_set_vf_rlpml(adapter, max_frame_size, pf_id);
+		max_frame_size = MAX_STD_JUMBO_FRAME_SIZE + VLAN_TAG_SIZE;
+	}
+
+	wr32(E1000_RLPML, max_frame_size);
+}
+
+/**
+ * igb_configure_vt_default_pool - Configure VT default pool
+ * @adapter: board private structure
+ *
+ * Configure the default pool
+ **/
+static void igb_configure_vt_default_pool(struct igb_adapter *adapter)
+{
+	struct e1000_hw *hw = &adapter->hw;
+	u16 pf_id = adapter->vfs_allocated_count;
+	u32 vtctl;
+
+	/* not in sr-iov mode - do nothing */
+	if (!pf_id)
+		return;
+
+	vtctl = rd32(E1000_VT_CTL);
+	vtctl &= ~(E1000_VT_CTL_DEFAULT_POOL_MASK |
+		   E1000_VT_CTL_DISABLE_DEF_POOL);
+	vtctl |= pf_id << E1000_VT_CTL_DEFAULT_POOL_SHIFT;
+	wr32(E1000_VT_CTL, vtctl);
+}
+
 /**
  * igb_configure_rx - Configure receive Unit after Reset
  * @adapter: board private structure
@@ -2033,8 +2116,10 @@ static void igb_configure_rx(struct igb_adapter *adapter)
 				writel(reta.dword,
 				       hw->hw_addr + E1000_RETA(0) + (j & ~3));
 		}
-
-		mrqc = E1000_MRQC_ENABLE_RSS_4Q;
+		if (adapter->vfs_allocated_count)
+			mrqc = E1000_MRQC_ENABLE_VMDQ_RSS_2Q;
+		else
+			mrqc = E1000_MRQC_ENABLE_RSS_4Q;
 
 		/* Fill out hash function seeds */
 		for (j = 0; j < 10; j++)
@@ -2059,6 +2144,9 @@ static void igb_configure_rx(struct igb_adapter *adapter)
 		rxcsum |= E1000_RXCSUM_PCSD;
 		wr32(E1000_RXCSUM, rxcsum);
 	} else {
+		/* Enable multi-queue for sr-iov */
+		if (adapter->vfs_allocated_count)
+			wr32(E1000_MRQC, E1000_MRQC_ENABLE_VMDQ);
 		/* Enable Receive Checksum Offload for TCP and UDP */
 		rxcsum = rd32(E1000_RXCSUM);
 		if (adapter->rx_csum)
@@ -2069,11 +2157,10 @@ static void igb_configure_rx(struct igb_adapter *adapter)
 		wr32(E1000_RXCSUM, rxcsum);
 	}
 
-	if (adapter->vlgrp)
-		wr32(E1000_RLPML,
-				adapter->max_frame_size + VLAN_TAG_SIZE);
-	else
-		wr32(E1000_RLPML, adapter->max_frame_size);
+	/* Set the default pool for the PF's first queue */
+	igb_configure_vt_default_pool(adapter);
+
+	igb_rlpml_set(adapter);
 
 	/* Enable Receives */
 	wr32(E1000_RCTL, rctl);
@@ -2303,6 +2390,8 @@ static int igb_set_mac(struct net_device *netdev, void *p)
 
 	hw->mac.ops.rar_set(hw, hw->mac.addr, 0);
 
+	igb_set_rah_pool(hw, adapter->vfs_allocated_count, 0);
+
 	return 0;
 }
 
@@ -2362,7 +2451,11 @@ static void igb_set_multi(struct net_device *netdev)
 		memcpy(mta_list + (i*ETH_ALEN), mc_ptr->dmi_addr, ETH_ALEN);
 		mc_ptr = mc_ptr->next;
 	}
-	igb_update_mc_addr_list(hw, mta_list, i, 1, mac->rar_entry_count);
+	igb_update_mc_addr_list(hw, mta_list, i,
+	                        adapter->vfs_allocated_count + 1,
+	                        mac->rar_entry_count);
+
+	igb_set_mc_list_pools(adapter, i, mac->rar_entry_count);
 	kfree(mta_list);
 }
 
@@ -3222,7 +3315,6 @@ static int igb_change_mtu(struct net_device *netdev, int new_mtu)
 		return -EINVAL;
 	}
 
-#define MAX_STD_JUMBO_FRAME_SIZE 9234
 	if (max_frame > MAX_STD_JUMBO_FRAME_SIZE) {
 		dev_err(&adapter->pdev->dev, "MTU > 9216 not supported.\n");
 		return -EINVAL;
@@ -3256,6 +3348,12 @@ static int igb_change_mtu(struct net_device *netdev, int new_mtu)
 #else
 		adapter->rx_buffer_len = PAGE_SIZE / 2;
 #endif
+
+	/* if sr-iov is enabled we need to force buffer size to 1K or larger */
+	if (adapter->vfs_allocated_count &&
+	    (adapter->rx_buffer_len < IGB_RXBUFFER_1024))
+		adapter->rx_buffer_len = IGB_RXBUFFER_1024;
+
 	/* adjust allocation if LPE protects us, and we aren't using SBP */
 	if ((max_frame == ETH_FRAME_LEN + ETH_FCS_LEN) ||
 	     (max_frame == MAXIMUM_ETHERNET_VLAN_SIZE))
@@ -4462,8 +4560,6 @@ static void igb_vlan_rx_register(struct net_device *netdev,
 		rctl &= ~E1000_RCTL_CFIEN;
 		wr32(E1000_RCTL, rctl);
 		igb_update_mng_vlan(adapter);
-		wr32(E1000_RLPML,
-				adapter->max_frame_size + VLAN_TAG_SIZE);
 	} else {
 		/* disable VLAN tag insert/strip */
 		ctrl = rd32(E1000_CTRL);
@@ -4474,10 +4570,10 @@ static void igb_vlan_rx_register(struct net_device *netdev,
 			igb_vlan_rx_kill_vid(netdev, adapter->mng_vlan_id);
 			adapter->mng_vlan_id = IGB_MNG_VLAN_NONE;
 		}
-		wr32(E1000_RLPML,
-				adapter->max_frame_size);
 	}
 
+	igb_rlpml_set(adapter);
+
 	if (!test_bit(__IGB_DOWN, &adapter->state))
 		igb_irq_enable(adapter);
 }
@@ -4841,4 +4937,52 @@ static void igb_io_resume(struct pci_dev *pdev)
 	igb_get_hw_control(adapter);
 }
 
+static inline void igb_set_vmolr(struct e1000_hw *hw, int vfn)
+{
+	u32 reg_data;
+
+	reg_data = rd32(E1000_VMOLR(vfn));
+	reg_data |= E1000_VMOLR_BAM |	 /* Accept broadcast */
+	            E1000_VMOLR_ROPE |   /* Accept packets matched in UTA */
+	            E1000_VMOLR_ROMPE |  /* Accept packets matched in MTA */
+	            E1000_VMOLR_AUPE |   /* Accept untagged packets */
+	            E1000_VMOLR_STRVLAN; /* Strip vlan tags */
+	wr32(E1000_VMOLR(vfn), reg_data);
+}
+
+static inline void igb_set_vf_rlpml(struct igb_adapter *adapter, int size,
+                                    int vfn)
+{
+	struct e1000_hw *hw = &adapter->hw;
+	u32 vmolr;
+
+	vmolr = rd32(E1000_VMOLR(vfn));
+	vmolr &= ~E1000_VMOLR_RLPML_MASK;
+	vmolr |= size | E1000_VMOLR_LPE;
+	wr32(E1000_VMOLR(vfn), vmolr);
+}
+
+static inline void igb_set_rah_pool(struct e1000_hw *hw, int pool, int entry)
+{
+	u32 reg_data;
+
+	reg_data = rd32(E1000_RAH(entry));
+	reg_data &= ~E1000_RAH_POOL_MASK;
+	reg_data |= E1000_RAH_POOL_1 << pool;;
+	wr32(E1000_RAH(entry), reg_data);
+}
+
+static void igb_set_mc_list_pools(struct igb_adapter *adapter,
+				  int entry_count, u16 total_rar_filters)
+{
+	struct e1000_hw *hw = &adapter->hw;
+	int i = adapter->vfs_allocated_count + 1;
+
+	if ((i + entry_count) < total_rar_filters)
+		total_rar_filters = i + entry_count;
+
+	for (; i < total_rar_filters; i++)
+		igb_set_rah_pool(hw, adapter->vfs_allocated_count, i);
+}
+
 /* igb_main.c */
-- 
cgit v1.2.3-70-g09d2


From 4ae196dfd61d06b061c069edcdd7c73121e60a21 Mon Sep 17 00:00:00 2001
From: Alexander Duyck <alexander.h.duyck@intel.com>
Date: Thu, 19 Feb 2009 20:40:07 -0800
Subject: igb: Add support for enabling VFs to PF driver.

This patch adds the support to handle requests from the VF to perform
operations such as completing resets, setting/reading mac address, adding
vlans, adding multicast addresses, setting rlpml, and general
communications between the PF and all VFs.

Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 drivers/net/igb/Makefile        |   2 +-
 drivers/net/igb/e1000_82575.c   |  42 ++++
 drivers/net/igb/e1000_82575.h   |  17 ++
 drivers/net/igb/e1000_defines.h |   9 +
 drivers/net/igb/e1000_hw.h      |  31 ++-
 drivers/net/igb/e1000_mac.c     |  24 +++
 drivers/net/igb/e1000_mac.h     |   1 +
 drivers/net/igb/e1000_mbx.c     | 447 ++++++++++++++++++++++++++++++++++++++++
 drivers/net/igb/e1000_mbx.h     |  77 +++++++
 drivers/net/igb/e1000_regs.h    |  12 ++
 drivers/net/igb/igb.h           |  12 ++
 drivers/net/igb/igb_main.c      | 429 +++++++++++++++++++++++++++++++++++---
 12 files changed, 1077 insertions(+), 26 deletions(-)
 create mode 100644 drivers/net/igb/e1000_mbx.c
 create mode 100644 drivers/net/igb/e1000_mbx.h

(limited to 'drivers/net/igb')

diff --git a/drivers/net/igb/Makefile b/drivers/net/igb/Makefile
index cda3ad51baf..8372cb9a8c1 100644
--- a/drivers/net/igb/Makefile
+++ b/drivers/net/igb/Makefile
@@ -33,5 +33,5 @@
 obj-$(CONFIG_IGB) += igb.o
 
 igb-objs := igb_main.o igb_ethtool.o e1000_82575.o \
-	    e1000_mac.o e1000_nvm.o e1000_phy.o
+	    e1000_mac.o e1000_nvm.o e1000_phy.o e1000_mbx.o
 
diff --git a/drivers/net/igb/e1000_82575.c b/drivers/net/igb/e1000_82575.c
index 7f43e253c56..ea63a215c90 100644
--- a/drivers/net/igb/e1000_82575.c
+++ b/drivers/net/igb/e1000_82575.c
@@ -213,6 +213,10 @@ static s32 igb_get_invariants_82575(struct e1000_hw *hw)
 		return -E1000_ERR_PHY;
 	}
 
+	/* if 82576 then initialize mailbox parameters */
+	if (mac->type == e1000_82576)
+		igb_init_mbx_params_pf(hw);
+
 	return 0;
 }
 
@@ -1413,6 +1417,44 @@ void igb_rx_fifo_flush_82575(struct e1000_hw *hw)
 	rd32(E1000_MPC);
 }
 
+/**
+ *  igb_vmdq_set_loopback_pf - enable or disable vmdq loopback
+ *  @hw: pointer to the hardware struct
+ *  @enable: state to enter, either enabled or disabled
+ *
+ *  enables/disables L2 switch loopback functionality.
+ **/
+void igb_vmdq_set_loopback_pf(struct e1000_hw *hw, bool enable)
+{
+	u32 dtxswc = rd32(E1000_DTXSWC);
+
+	if (enable)
+		dtxswc |= E1000_DTXSWC_VMDQ_LOOPBACK_EN;
+	else
+		dtxswc &= ~E1000_DTXSWC_VMDQ_LOOPBACK_EN;
+
+	wr32(E1000_DTXSWC, dtxswc);
+}
+
+/**
+ *  igb_vmdq_set_replication_pf - enable or disable vmdq replication
+ *  @hw: pointer to the hardware struct
+ *  @enable: state to enter, either enabled or disabled
+ *
+ *  enables/disables replication of packets across multiple pools.
+ **/
+void igb_vmdq_set_replication_pf(struct e1000_hw *hw, bool enable)
+{
+	u32 vt_ctl = rd32(E1000_VT_CTL);
+
+	if (enable)
+		vt_ctl |= E1000_VT_CTL_VM_REPL_EN;
+	else
+		vt_ctl &= ~E1000_VT_CTL_VM_REPL_EN;
+
+	wr32(E1000_VT_CTL, vt_ctl);
+}
+
 static struct e1000_mac_operations e1000_mac_ops_82575 = {
 	.reset_hw             = igb_reset_hw_82575,
 	.init_hw              = igb_init_hw_82575,
diff --git a/drivers/net/igb/e1000_82575.h b/drivers/net/igb/e1000_82575.h
index 116714f346b..eaf97705036 100644
--- a/drivers/net/igb/e1000_82575.h
+++ b/drivers/net/igb/e1000_82575.h
@@ -162,6 +162,10 @@ struct e1000_adv_tx_context_desc {
 #define E1000_DCA_TXCTRL_CPUID_SHIFT 24 /* Tx CPUID now in the last byte */
 #define E1000_DCA_RXCTRL_CPUID_SHIFT 24 /* Rx CPUID now in the last byte */
 
+#define MAX_NUM_VFS                   8
+
+#define E1000_DTXSWC_VMDQ_LOOPBACK_EN (1 << 31)  /* global VF LB enable */
+
 /* Easy defines for setting default pool, would normally be left a zero */
 #define E1000_VT_CTL_DEFAULT_POOL_SHIFT 7
 #define E1000_VT_CTL_DEFAULT_POOL_MASK  (0x7 << E1000_VT_CTL_DEFAULT_POOL_SHIFT)
@@ -181,8 +185,21 @@ struct e1000_adv_tx_context_desc {
 #define E1000_VMOLR_BAM        0x08000000 /* Accept Broadcast packets */
 #define E1000_VMOLR_MPME       0x10000000 /* Multicast promiscuous mode */
 #define E1000_VMOLR_STRVLAN    0x40000000 /* Vlan stripping enable */
+#define E1000_VMOLR_STRCRC     0x80000000 /* CRC stripping enable */
+
+#define E1000_VLVF_ARRAY_SIZE     32
+#define E1000_VLVF_VLANID_MASK    0x00000FFF
+#define E1000_VLVF_POOLSEL_SHIFT  12
+#define E1000_VLVF_POOLSEL_MASK   (0xFF << E1000_VLVF_POOLSEL_SHIFT)
+#define E1000_VLVF_LVLAN          0x00100000
+#define E1000_VLVF_VLANID_ENABLE  0x80000000
+
+#define E1000_IOVCTL 0x05BBC
+#define E1000_IOVCTL_REUSE_VFQ 0x00000001
 
 #define ALL_QUEUES   0xFFFF
 
+void igb_vmdq_set_loopback_pf(struct e1000_hw *, bool);
+void igb_vmdq_set_replication_pf(struct e1000_hw *, bool);
 
 #endif
diff --git a/drivers/net/igb/e1000_defines.h b/drivers/net/igb/e1000_defines.h
index d7613db7800..62e378b6461 100644
--- a/drivers/net/igb/e1000_defines.h
+++ b/drivers/net/igb/e1000_defines.h
@@ -45,6 +45,8 @@
 
 /* Extended Device Control */
 #define E1000_CTRL_EXT_SDP7_DATA 0x00000080 /* Value of SW Defineable Pin 7 */
+/* Physical Func Reset Done Indication */
+#define E1000_CTRL_EXT_PFRSTD    0x00004000
 #define E1000_CTRL_EXT_LINK_MODE_MASK 0x00C00000
 #define E1000_CTRL_EXT_LINK_MODE_PCIE_SERDES  0x00C00000
 #define E1000_CTRL_EXT_LINK_MODE_SGMII   0x00800000
@@ -325,6 +327,7 @@
 #define E1000_ICR_RXSEQ         0x00000008 /* rx sequence error */
 #define E1000_ICR_RXDMT0        0x00000010 /* rx desc min. threshold (0) */
 #define E1000_ICR_RXT0          0x00000080 /* rx timer intr (ring 0) */
+#define E1000_ICR_VMMB          0x00000100 /* VM MB event */
 /* If this bit asserted, the driver should claim the interrupt */
 #define E1000_ICR_INT_ASSERTED  0x80000000
 /* LAN connected device generates an interrupt */
@@ -362,6 +365,7 @@
 /* Interrupt Mask Set */
 #define E1000_IMS_TXDW      E1000_ICR_TXDW      /* Transmit desc written back */
 #define E1000_IMS_LSC       E1000_ICR_LSC       /* Link Status Change */
+#define E1000_IMS_VMMB      E1000_ICR_VMMB      /* Mail box activity */
 #define E1000_IMS_RXSEQ     E1000_ICR_RXSEQ     /* rx sequence error */
 #define E1000_IMS_RXDMT0    E1000_ICR_RXDMT0    /* rx desc min. threshold */
 #define E1000_IMS_RXT0      E1000_ICR_RXT0      /* rx timer intr */
@@ -413,6 +417,7 @@
 #define E1000_BLK_PHY_RESET   12
 #define E1000_ERR_SWFW_SYNC 13
 #define E1000_NOT_IMPLEMENTED 14
+#define E1000_ERR_MBX      15
 
 /* Loop limit on how long we wait for auto-negotiation to complete */
 #define COPPER_LINK_UP_LIMIT              10
@@ -659,4 +664,8 @@
 #define E1000_GEN_CTL_ADDRESS_SHIFT     8
 #define E1000_GEN_POLL_TIMEOUT          640
 
+#define E1000_VFTA_ENTRY_SHIFT               5
+#define E1000_VFTA_ENTRY_MASK                0x7F
+#define E1000_VFTA_ENTRY_BIT_SHIFT_MASK      0x1F
+
 #endif
diff --git a/drivers/net/igb/e1000_hw.h b/drivers/net/igb/e1000_hw.h
index 10b872d3c9f..d793dca1eef 100644
--- a/drivers/net/igb/e1000_hw.h
+++ b/drivers/net/igb/e1000_hw.h
@@ -32,7 +32,6 @@
 #include <linux/delay.h>
 #include <linux/io.h>
 
-#include "e1000_mac.h"
 #include "e1000_regs.h"
 #include "e1000_defines.h"
 
@@ -272,6 +271,7 @@ struct e1000_host_mng_command_info {
 #include "e1000_mac.h"
 #include "e1000_phy.h"
 #include "e1000_nvm.h"
+#include "e1000_mbx.h"
 
 struct e1000_mac_operations {
 	s32  (*check_for_link)(struct e1000_hw *);
@@ -427,6 +427,34 @@ struct e1000_fc_info {
 	enum e1000_fc_type original_type;
 };
 
+struct e1000_mbx_operations {
+	s32 (*init_params)(struct e1000_hw *hw);
+	s32 (*read)(struct e1000_hw *, u32 *, u16,  u16);
+	s32 (*write)(struct e1000_hw *, u32 *, u16, u16);
+	s32 (*read_posted)(struct e1000_hw *, u32 *, u16,  u16);
+	s32 (*write_posted)(struct e1000_hw *, u32 *, u16, u16);
+	s32 (*check_for_msg)(struct e1000_hw *, u16);
+	s32 (*check_for_ack)(struct e1000_hw *, u16);
+	s32 (*check_for_rst)(struct e1000_hw *, u16);
+};
+
+struct e1000_mbx_stats {
+	u32 msgs_tx;
+	u32 msgs_rx;
+
+	u32 acks;
+	u32 reqs;
+	u32 rsts;
+};
+
+struct e1000_mbx_info {
+	struct e1000_mbx_operations ops;
+	struct e1000_mbx_stats stats;
+	u32 timeout;
+	u32 usec_delay;
+	u16 size;
+};
+
 struct e1000_dev_spec_82575 {
 	bool sgmii_active;
 };
@@ -443,6 +471,7 @@ struct e1000_hw {
 	struct e1000_phy_info  phy;
 	struct e1000_nvm_info  nvm;
 	struct e1000_bus_info  bus;
+	struct e1000_mbx_info mbx;
 	struct e1000_host_mng_dhcp_cookie mng_cookie;
 
 	union {
diff --git a/drivers/net/igb/e1000_mac.c b/drivers/net/igb/e1000_mac.c
index 5c249e2ce93..2804db03e9d 100644
--- a/drivers/net/igb/e1000_mac.c
+++ b/drivers/net/igb/e1000_mac.c
@@ -117,6 +117,30 @@ void igb_write_vfta(struct e1000_hw *hw, u32 offset, u32 value)
 	wrfl();
 }
 
+/**
+ *  igb_vfta_set - enable or disable vlan in VLAN filter table
+ *  @hw: pointer to the HW structure
+ *  @vid: VLAN id to add or remove
+ *  @add: if true add filter, if false remove
+ *
+ *  Sets or clears a bit in the VLAN filter table array based on VLAN id
+ *  and if we are adding or removing the filter
+ **/
+void igb_vfta_set(struct e1000_hw *hw, u32 vid, bool add)
+{
+	u32 index = (vid >> E1000_VFTA_ENTRY_SHIFT) & E1000_VFTA_ENTRY_MASK;
+	u32 mask = 1 < (vid & E1000_VFTA_ENTRY_BIT_SHIFT_MASK);
+	u32 vfta;
+
+	vfta = array_rd32(E1000_VFTA, index);
+	if (add)
+		vfta |= mask;
+	else
+		vfta &= ~mask;
+
+	igb_write_vfta(hw, index, vfta);
+}
+
 /**
  *  igb_check_alt_mac_addr - Check for alternate MAC addr
  *  @hw: pointer to the HW structure
diff --git a/drivers/net/igb/e1000_mac.h b/drivers/net/igb/e1000_mac.h
index e5200def582..eccc3536a56 100644
--- a/drivers/net/igb/e1000_mac.h
+++ b/drivers/net/igb/e1000_mac.h
@@ -58,6 +58,7 @@ s32  igb_write_8bit_ctrl_reg(struct e1000_hw *hw, u32 reg,
 
 void igb_clear_hw_cntrs_base(struct e1000_hw *hw);
 void igb_clear_vfta(struct e1000_hw *hw);
+void igb_vfta_set(struct e1000_hw *hw, u32 vid, bool add);
 void igb_config_collision_dist(struct e1000_hw *hw);
 void igb_mta_set(struct e1000_hw *hw, u32 hash_value);
 void igb_put_hw_semaphore(struct e1000_hw *hw);
diff --git a/drivers/net/igb/e1000_mbx.c b/drivers/net/igb/e1000_mbx.c
new file mode 100644
index 00000000000..fe71c7ddaa0
--- /dev/null
+++ b/drivers/net/igb/e1000_mbx.c
@@ -0,0 +1,447 @@
+/*******************************************************************************
+
+  Intel(R) Gigabit Ethernet Linux driver
+  Copyright(c) 2007-2009 Intel Corporation.
+
+  This program is free software; you can redistribute it and/or modify it
+  under the terms and conditions of the GNU General Public License,
+  version 2, as published by the Free Software Foundation.
+
+  This program is distributed in the hope it will be useful, but WITHOUT
+  ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+  FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
+  more details.
+
+  You should have received a copy of the GNU General Public License along with
+  this program; if not, write to the Free Software Foundation, Inc.,
+  51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA.
+
+  The full GNU General Public License is included in this distribution in
+  the file called "COPYING".
+
+  Contact Information:
+  e1000-devel Mailing List <e1000-devel@lists.sourceforge.net>
+  Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
+
+*******************************************************************************/
+
+#include "e1000_mbx.h"
+
+/**
+ *  igb_read_mbx - Reads a message from the mailbox
+ *  @hw: pointer to the HW structure
+ *  @msg: The message buffer
+ *  @size: Length of buffer
+ *  @mbx_id: id of mailbox to read
+ *
+ *  returns SUCCESS if it successfuly read message from buffer
+ **/
+s32 igb_read_mbx(struct e1000_hw *hw, u32 *msg, u16 size, u16 mbx_id)
+{
+	struct e1000_mbx_info *mbx = &hw->mbx;
+	s32 ret_val = -E1000_ERR_MBX;
+
+	/* limit read to size of mailbox */
+	if (size > mbx->size)
+		size = mbx->size;
+
+	if (mbx->ops.read)
+		ret_val = mbx->ops.read(hw, msg, size, mbx_id);
+
+	return ret_val;
+}
+
+/**
+ *  igb_write_mbx - Write a message to the mailbox
+ *  @hw: pointer to the HW structure
+ *  @msg: The message buffer
+ *  @size: Length of buffer
+ *  @mbx_id: id of mailbox to write
+ *
+ *  returns SUCCESS if it successfully copied message into the buffer
+ **/
+s32 igb_write_mbx(struct e1000_hw *hw, u32 *msg, u16 size, u16 mbx_id)
+{
+	struct e1000_mbx_info *mbx = &hw->mbx;
+	s32 ret_val = 0;
+
+	if (size > mbx->size)
+		ret_val = -E1000_ERR_MBX;
+
+	else if (mbx->ops.write)
+		ret_val = mbx->ops.write(hw, msg, size, mbx_id);
+
+	return ret_val;
+}
+
+/**
+ *  igb_check_for_msg - checks to see if someone sent us mail
+ *  @hw: pointer to the HW structure
+ *  @mbx_id: id of mailbox to check
+ *
+ *  returns SUCCESS if the Status bit was found or else ERR_MBX
+ **/
+s32 igb_check_for_msg(struct e1000_hw *hw, u16 mbx_id)
+{
+	struct e1000_mbx_info *mbx = &hw->mbx;
+	s32 ret_val = -E1000_ERR_MBX;
+
+	if (mbx->ops.check_for_msg)
+		ret_val = mbx->ops.check_for_msg(hw, mbx_id);
+
+	return ret_val;
+}
+
+/**
+ *  igb_check_for_ack - checks to see if someone sent us ACK
+ *  @hw: pointer to the HW structure
+ *  @mbx_id: id of mailbox to check
+ *
+ *  returns SUCCESS if the Status bit was found or else ERR_MBX
+ **/
+s32 igb_check_for_ack(struct e1000_hw *hw, u16 mbx_id)
+{
+	struct e1000_mbx_info *mbx = &hw->mbx;
+	s32 ret_val = -E1000_ERR_MBX;
+
+	if (mbx->ops.check_for_ack)
+		ret_val = mbx->ops.check_for_ack(hw, mbx_id);
+
+	return ret_val;
+}
+
+/**
+ *  igb_check_for_rst - checks to see if other side has reset
+ *  @hw: pointer to the HW structure
+ *  @mbx_id: id of mailbox to check
+ *
+ *  returns SUCCESS if the Status bit was found or else ERR_MBX
+ **/
+s32 igb_check_for_rst(struct e1000_hw *hw, u16 mbx_id)
+{
+	struct e1000_mbx_info *mbx = &hw->mbx;
+	s32 ret_val = -E1000_ERR_MBX;
+
+	if (mbx->ops.check_for_rst)
+		ret_val = mbx->ops.check_for_rst(hw, mbx_id);
+
+	return ret_val;
+}
+
+/**
+ *  igb_poll_for_msg - Wait for message notification
+ *  @hw: pointer to the HW structure
+ *  @mbx_id: id of mailbox to write
+ *
+ *  returns SUCCESS if it successfully received a message notification
+ **/
+static s32 igb_poll_for_msg(struct e1000_hw *hw, u16 mbx_id)
+{
+	struct e1000_mbx_info *mbx = &hw->mbx;
+	int countdown = mbx->timeout;
+
+	if (!mbx->ops.check_for_msg)
+		goto out;
+
+	while (mbx->ops.check_for_msg(hw, mbx_id)) {
+		if (!countdown)
+			break;
+		countdown--;
+		udelay(mbx->usec_delay);
+	}
+out:
+	return countdown ? 0 : -E1000_ERR_MBX;
+}
+
+/**
+ *  igb_poll_for_ack - Wait for message acknowledgement
+ *  @hw: pointer to the HW structure
+ *  @mbx_id: id of mailbox to write
+ *
+ *  returns SUCCESS if it successfully received a message acknowledgement
+ **/
+static s32 igb_poll_for_ack(struct e1000_hw *hw, u16 mbx_id)
+{
+	struct e1000_mbx_info *mbx = &hw->mbx;
+	int countdown = mbx->timeout;
+
+	if (!mbx->ops.check_for_ack)
+		goto out;
+
+	while (mbx->ops.check_for_ack(hw, mbx_id)) {
+		if (!countdown)
+			break;
+		countdown--;
+		udelay(mbx->usec_delay);
+	}
+out:
+	return countdown ? 0 : -E1000_ERR_MBX;
+}
+
+/**
+ *  igb_read_posted_mbx - Wait for message notification and receive message
+ *  @hw: pointer to the HW structure
+ *  @msg: The message buffer
+ *  @size: Length of buffer
+ *  @mbx_id: id of mailbox to write
+ *
+ *  returns SUCCESS if it successfully received a message notification and
+ *  copied it into the receive buffer.
+ **/
+s32 igb_read_posted_mbx(struct e1000_hw *hw, u32 *msg, u16 size, u16 mbx_id)
+{
+	struct e1000_mbx_info *mbx = &hw->mbx;
+	s32 ret_val = -E1000_ERR_MBX;
+
+	if (!mbx->ops.read)
+		goto out;
+
+	ret_val = igb_poll_for_msg(hw, mbx_id);
+
+	if (!ret_val)
+		ret_val = mbx->ops.read(hw, msg, size, mbx_id);
+out:
+	return ret_val;
+}
+
+/**
+ *  igb_write_posted_mbx - Write a message to the mailbox, wait for ack
+ *  @hw: pointer to the HW structure
+ *  @msg: The message buffer
+ *  @size: Length of buffer
+ *  @mbx_id: id of mailbox to write
+ *
+ *  returns SUCCESS if it successfully copied message into the buffer and
+ *  received an ack to that message within delay * timeout period
+ **/
+s32 igb_write_posted_mbx(struct e1000_hw *hw, u32 *msg, u16 size, u16 mbx_id)
+{
+	struct e1000_mbx_info *mbx = &hw->mbx;
+	s32 ret_val = 0;
+
+	if (!mbx->ops.write)
+		goto out;
+
+	/* send msg*/
+	ret_val = mbx->ops.write(hw, msg, size, mbx_id);
+
+	/* if msg sent wait until we receive an ack */
+	if (!ret_val)
+		ret_val = igb_poll_for_ack(hw, mbx_id);
+out:
+	return ret_val;
+}
+
+/**
+ *  e1000_init_mbx_ops_generic - Initialize NVM function pointers
+ *  @hw: pointer to the HW structure
+ *
+ *  Setups up the function pointers to no-op functions
+ **/
+void e1000_init_mbx_ops_generic(struct e1000_hw *hw)
+{
+	struct e1000_mbx_info *mbx = &hw->mbx;
+	mbx->ops.read_posted = igb_read_posted_mbx;
+	mbx->ops.write_posted = igb_write_posted_mbx;
+}
+
+static s32 igb_check_for_bit_pf(struct e1000_hw *hw, u32 mask)
+{
+	u32 mbvficr = rd32(E1000_MBVFICR);
+	s32 ret_val = -E1000_ERR_MBX;
+
+	if (mbvficr & mask) {
+		ret_val = 0;
+		wr32(E1000_MBVFICR, mask);
+	}
+
+	return ret_val;
+}
+
+/**
+ *  igb_check_for_msg_pf - checks to see if the VF has sent mail
+ *  @hw: pointer to the HW structure
+ *  @vf_number: the VF index
+ *
+ *  returns SUCCESS if the VF has set the Status bit or else ERR_MBX
+ **/
+static s32 igb_check_for_msg_pf(struct e1000_hw *hw, u16 vf_number)
+{
+	s32 ret_val = -E1000_ERR_MBX;
+
+	if (!igb_check_for_bit_pf(hw, E1000_MBVFICR_VFREQ_VF1 << vf_number)) {
+		ret_val = 0;
+		hw->mbx.stats.reqs++;
+	}
+
+	return ret_val;
+}
+
+/**
+ *  igb_check_for_ack_pf - checks to see if the VF has ACKed
+ *  @hw: pointer to the HW structure
+ *  @vf_number: the VF index
+ *
+ *  returns SUCCESS if the VF has set the Status bit or else ERR_MBX
+ **/
+static s32 igb_check_for_ack_pf(struct e1000_hw *hw, u16 vf_number)
+{
+	s32 ret_val = -E1000_ERR_MBX;
+
+	if (!igb_check_for_bit_pf(hw, E1000_MBVFICR_VFACK_VF1 << vf_number)) {
+		ret_val = 0;
+		hw->mbx.stats.acks++;
+	}
+
+	return ret_val;
+}
+
+/**
+ *  igb_check_for_rst_pf - checks to see if the VF has reset
+ *  @hw: pointer to the HW structure
+ *  @vf_number: the VF index
+ *
+ *  returns SUCCESS if the VF has set the Status bit or else ERR_MBX
+ **/
+static s32 igb_check_for_rst_pf(struct e1000_hw *hw, u16 vf_number)
+{
+	u32 vflre = rd32(E1000_VFLRE);
+	s32 ret_val = -E1000_ERR_MBX;
+
+	if (vflre & (1 << vf_number)) {
+		ret_val = 0;
+		wr32(E1000_VFLRE, (1 << vf_number));
+		hw->mbx.stats.rsts++;
+	}
+
+	return ret_val;
+}
+
+/**
+ *  igb_write_mbx_pf - Places a message in the mailbox
+ *  @hw: pointer to the HW structure
+ *  @msg: The message buffer
+ *  @size: Length of buffer
+ *  @vf_number: the VF index
+ *
+ *  returns SUCCESS if it successfully copied message into the buffer
+ **/
+static s32 igb_write_mbx_pf(struct e1000_hw *hw, u32 *msg, u16 size,
+                              u16 vf_number)
+{
+	u32 p2v_mailbox;
+	s32 ret_val = 0;
+	u16 i;
+
+	/* Take ownership of the buffer */
+	wr32(E1000_P2VMAILBOX(vf_number), E1000_P2VMAILBOX_PFU);
+
+	/* Make sure we have ownership now... */
+	p2v_mailbox = rd32(E1000_P2VMAILBOX(vf_number));
+	if (!(p2v_mailbox & E1000_P2VMAILBOX_PFU)) {
+		/* failed to grab ownership */
+		ret_val = -E1000_ERR_MBX;
+		goto out_no_write;
+	}
+
+	/*
+	 * flush any ack or msg which may already be in the queue
+	 * as they are likely the result of an error
+	 */
+	igb_check_for_ack_pf(hw, vf_number);
+	igb_check_for_msg_pf(hw, vf_number);
+
+	/* copy the caller specified message to the mailbox memory buffer */
+	for (i = 0; i < size; i++)
+		array_wr32(E1000_VMBMEM(vf_number), i, msg[i]);
+
+	/* Interrupt VF to tell it a message has been sent and release buffer*/
+	wr32(E1000_P2VMAILBOX(vf_number), E1000_P2VMAILBOX_STS);
+
+	/* update stats */
+	hw->mbx.stats.msgs_tx++;
+
+out_no_write:
+	return ret_val;
+
+}
+
+/**
+ *  igb_read_mbx_pf - Read a message from the mailbox
+ *  @hw: pointer to the HW structure
+ *  @msg: The message buffer
+ *  @size: Length of buffer
+ *  @vf_number: the VF index
+ *
+ *  This function copies a message from the mailbox buffer to the caller's
+ *  memory buffer.  The presumption is that the caller knows that there was
+ *  a message due to a VF request so no polling for message is needed.
+ **/
+static s32 igb_read_mbx_pf(struct e1000_hw *hw, u32 *msg, u16 size,
+                             u16 vf_number)
+{
+	u32 p2v_mailbox;
+	s32 ret_val = 0;
+	u16 i;
+
+	/* Take ownership of the buffer */
+	wr32(E1000_P2VMAILBOX(vf_number), E1000_P2VMAILBOX_PFU);
+
+	/* Make sure we have ownership now... */
+	p2v_mailbox = rd32(E1000_P2VMAILBOX(vf_number));
+	if (!(p2v_mailbox & E1000_P2VMAILBOX_PFU)) {
+		/* failed to grab ownership */
+		ret_val = -E1000_ERR_MBX;
+		goto out_no_read;
+	}
+
+	/* copy the message to the mailbox memory buffer */
+	for (i = 0; i < size; i++)
+		msg[i] = array_rd32(E1000_VMBMEM(vf_number), i);
+
+	/* Acknowledge the message and release buffer */
+	wr32(E1000_P2VMAILBOX(vf_number), E1000_P2VMAILBOX_ACK);
+
+	/* update stats */
+	hw->mbx.stats.msgs_rx++;
+
+	ret_val = 0;
+
+out_no_read:
+	return ret_val;
+}
+
+/**
+ *  e1000_init_mbx_params_pf - set initial values for pf mailbox
+ *  @hw: pointer to the HW structure
+ *
+ *  Initializes the hw->mbx struct to correct values for pf mailbox
+ */
+s32 igb_init_mbx_params_pf(struct e1000_hw *hw)
+{
+	struct e1000_mbx_info *mbx = &hw->mbx;
+
+	if (hw->mac.type == e1000_82576) {
+		mbx->timeout = 0;
+		mbx->usec_delay = 0;
+
+		mbx->size = E1000_VFMAILBOX_SIZE;
+
+		mbx->ops.read = igb_read_mbx_pf;
+		mbx->ops.write = igb_write_mbx_pf;
+		mbx->ops.read_posted = igb_read_posted_mbx;
+		mbx->ops.write_posted = igb_write_posted_mbx;
+		mbx->ops.check_for_msg = igb_check_for_msg_pf;
+		mbx->ops.check_for_ack = igb_check_for_ack_pf;
+		mbx->ops.check_for_rst = igb_check_for_rst_pf;
+
+		mbx->stats.msgs_tx = 0;
+		mbx->stats.msgs_rx = 0;
+		mbx->stats.reqs = 0;
+		mbx->stats.acks = 0;
+		mbx->stats.rsts = 0;
+	}
+
+	return 0;
+}
+
diff --git a/drivers/net/igb/e1000_mbx.h b/drivers/net/igb/e1000_mbx.h
new file mode 100644
index 00000000000..6ec9890a8f7
--- /dev/null
+++ b/drivers/net/igb/e1000_mbx.h
@@ -0,0 +1,77 @@
+/*******************************************************************************
+
+  Intel(R) Gigabit Ethernet Linux driver
+  Copyright(c) 2007-2009 Intel Corporation.
+
+  This program is free software; you can redistribute it and/or modify it
+  under the terms and conditions of the GNU General Public License,
+  version 2, as published by the Free Software Foundation.
+
+  This program is distributed in the hope it will be useful, but WITHOUT
+  ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+  FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
+  more details.
+
+  You should have received a copy of the GNU General Public License along with
+  this program; if not, write to the Free Software Foundation, Inc.,
+  51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA.
+
+  The full GNU General Public License is included in this distribution in
+  the file called "COPYING".
+
+  Contact Information:
+  e1000-devel Mailing List <e1000-devel@lists.sourceforge.net>
+  Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
+
+*******************************************************************************/
+
+#ifndef _E1000_MBX_H_
+#define _E1000_MBX_H_
+
+#include "e1000_hw.h"
+
+#define E1000_P2VMAILBOX_STS   0x00000001 /* Initiate message send to VF */
+#define E1000_P2VMAILBOX_ACK   0x00000002 /* Ack message recv'd from VF */
+#define E1000_P2VMAILBOX_VFU   0x00000004 /* VF owns the mailbox buffer */
+#define E1000_P2VMAILBOX_PFU   0x00000008 /* PF owns the mailbox buffer */
+#define E1000_P2VMAILBOX_RVFU  0x00000010 /* Reset VFU - used when VF stuck */
+
+#define E1000_MBVFICR_VFREQ_MASK 0x000000FF /* bits for VF messages */
+#define E1000_MBVFICR_VFREQ_VF1  0x00000001 /* bit for VF 1 message */
+#define E1000_MBVFICR_VFACK_MASK 0x00FF0000 /* bits for VF acks */
+#define E1000_MBVFICR_VFACK_VF1  0x00010000 /* bit for VF 1 ack */
+
+#define E1000_VFMAILBOX_SIZE   16 /* 16 32 bit words - 64 bytes */
+
+/* If it's a E1000_VF_* msg then it originates in the VF and is sent to the
+ * PF.  The reverse is true if it is E1000_PF_*.
+ * Message ACK's are the value or'd with 0xF0000000
+ */
+#define E1000_VT_MSGTYPE_ACK      0x80000000  /* Messages below or'd with
+                                               * this are the ACK */
+#define E1000_VT_MSGTYPE_NACK     0x40000000  /* Messages below or'd with
+                                               * this are the NACK */
+#define E1000_VT_MSGTYPE_CTS      0x20000000  /* Indicates that VF is still
+                                                 clear to send requests */
+#define E1000_VT_MSGINFO_SHIFT    16
+/* bits 23:16 are used for exra info for certain messages */
+#define E1000_VT_MSGINFO_MASK     (0xFF << E1000_VT_MSGINFO_SHIFT)
+
+#define E1000_VF_RESET            0x01 /* VF requests reset */
+#define E1000_VF_SET_MAC_ADDR     0x02 /* VF requests PF to set MAC addr */
+#define E1000_VF_SET_MULTICAST    0x03 /* VF requests PF to set MC addr */
+#define E1000_VF_SET_VLAN         0x04 /* VF requests PF to set VLAN */
+#define E1000_VF_SET_LPE          0x05 /* VF requests PF to set VMOLR.LPE */
+
+#define E1000_PF_CONTROL_MSG      0x0100 /* PF control message */
+
+s32 igb_read_mbx(struct e1000_hw *, u32 *, u16, u16);
+s32 igb_write_mbx(struct e1000_hw *, u32 *, u16, u16);
+s32 igb_read_posted_mbx(struct e1000_hw *, u32 *, u16, u16);
+s32 igb_write_posted_mbx(struct e1000_hw *, u32 *, u16, u16);
+s32 igb_check_for_msg(struct e1000_hw *, u16);
+s32 igb_check_for_ack(struct e1000_hw *, u16);
+s32 igb_check_for_rst(struct e1000_hw *, u16);
+s32 igb_init_mbx_params_pf(struct e1000_hw *);
+
+#endif /* _E1000_MBX_H_ */
diff --git a/drivers/net/igb/e1000_regs.h b/drivers/net/igb/e1000_regs.h
index 5d00c864d10..0bd7728fe46 100644
--- a/drivers/net/igb/e1000_regs.h
+++ b/drivers/net/igb/e1000_regs.h
@@ -321,9 +321,21 @@ enum {
 #define E1000_RSSRK(_i) (0x05C80 + ((_i) * 4)) /* RSS Random Key - RW Array */
 
 /* VT Registers */
+#define E1000_MBVFICR   0x00C80 /* Mailbox VF Cause - RWC */
+#define E1000_MBVFIMR   0x00C84 /* Mailbox VF int Mask - RW */
+#define E1000_VFLRE     0x00C88 /* VF Register Events - RWC */
+#define E1000_VFRE      0x00C8C /* VF Receive Enables */
+#define E1000_VFTE      0x00C90 /* VF Transmit Enables */
 #define E1000_QDE       0x02408 /* Queue Drop Enable - RW */
+#define E1000_DTXSWC    0x03500 /* DMA Tx Switch Control - RW */
+#define E1000_RPLOLR    0x05AF0 /* Replication Offload - RW */
+#define E1000_IOVTCL    0x05BBC /* IOV Control Register */
 /* These act per VF so an array friendly macro is used */
+#define E1000_P2VMAILBOX(_n)   (0x00C00 + (4 * (_n)))
+#define E1000_VMBMEM(_n)       (0x00800 + (64 * (_n)))
 #define E1000_VMOLR(_n)        (0x05AD0 + (4 * (_n)))
+#define E1000_VLVF(_n)         (0x05D00 + (4 * (_n))) /* VLAN Virtual Machine
+                                                       * Filter - RW */
 
 #define wr32(reg, value) (writel(value, hw->hw_addr + reg))
 #define rd32(reg) (readl(hw->hw_addr + reg))
diff --git a/drivers/net/igb/igb.h b/drivers/net/igb/igb.h
index d925f7dd7fb..e18ac1bf45f 100644
--- a/drivers/net/igb/igb.h
+++ b/drivers/net/igb/igb.h
@@ -62,6 +62,17 @@ struct igb_adapter;
 #define IGB_MAX_TX_QUEUES     IGB_MAX_RX_QUEUES
 #define IGB_ABS_MAX_TX_QUEUES     4
 
+#define IGB_MAX_VF_MC_ENTRIES              30
+#define IGB_MAX_VF_FUNCTIONS               8
+#define IGB_MAX_VFTA_ENTRIES               128
+
+struct vf_data_storage {
+	unsigned char vf_mac_addresses[ETH_ALEN];
+	u16 vf_mc_hashes[IGB_MAX_VF_MC_ENTRIES];
+	u16 num_vf_mc_hashes;
+	bool clear_to_send;
+};
+
 /* RX descriptor control thresholds.
  * PTHRESH - MAC will consider prefetch if it has fewer than this number of
  *           descriptors available in its onboard memory.
@@ -272,6 +283,7 @@ struct igb_adapter {
 	unsigned int tx_ring_count;
 	unsigned int rx_ring_count;
 	unsigned int vfs_allocated_count;
+	struct vf_data_storage *vf_data;
 };
 
 #define IGB_FLAG_HAS_MSI           (1 << 0)
diff --git a/drivers/net/igb/igb_main.c b/drivers/net/igb/igb_main.c
index c7c7eeba336..b9e7980e3f4 100644
--- a/drivers/net/igb/igb_main.c
+++ b/drivers/net/igb/igb_main.c
@@ -122,10 +122,16 @@ static void igb_vlan_rx_register(struct net_device *, struct vlan_group *);
 static void igb_vlan_rx_add_vid(struct net_device *, u16);
 static void igb_vlan_rx_kill_vid(struct net_device *, u16);
 static void igb_restore_vlan(struct igb_adapter *);
+static void igb_ping_all_vfs(struct igb_adapter *);
+static void igb_msg_task(struct igb_adapter *);
+static int igb_rcv_msg_from_vf(struct igb_adapter *, u32);
 static inline void igb_set_rah_pool(struct e1000_hw *, int , int);
 static void igb_set_mc_list_pools(struct igb_adapter *, int, u16);
+static void igb_vmm_control(struct igb_adapter *);
 static inline void igb_set_vmolr(struct e1000_hw *, int);
-static inline void igb_set_vf_rlpml(struct igb_adapter *, int, int);
+static inline int igb_set_vf_rlpml(struct igb_adapter *, int, int);
+static int igb_set_vf_mac(struct igb_adapter *adapter, int, unsigned char *);
+static void igb_restore_vf_multicasts(struct igb_adapter *adapter);
 
 static int igb_suspend(struct pci_dev *, pm_message_t);
 #ifdef CONFIG_PM
@@ -768,7 +774,10 @@ static void igb_irq_enable(struct igb_adapter *adapter)
 		wr32(E1000_EIAC, adapter->eims_enable_mask);
 		wr32(E1000_EIAM, adapter->eims_enable_mask);
 		wr32(E1000_EIMS, adapter->eims_enable_mask);
-		wr32(E1000_IMS, E1000_IMS_LSC | E1000_IMS_DOUTSYNC);
+		if (adapter->vfs_allocated_count)
+			wr32(E1000_MBVFIMR, 0xFF);
+		wr32(E1000_IMS, (E1000_IMS_LSC | E1000_IMS_VMMB |
+		                 E1000_IMS_DOUTSYNC));
 	} else {
 		wr32(E1000_IMS, IMS_ENABLE_MASK);
 		wr32(E1000_IAM, IMS_ENABLE_MASK);
@@ -892,6 +901,7 @@ int igb_up(struct igb_adapter *adapter)
 	if (adapter->msix_entries)
 		igb_configure_msix(adapter);
 
+	igb_vmm_control(adapter);
 	igb_set_rah_pool(hw, adapter->vfs_allocated_count, 0);
 	igb_set_vmolr(hw, adapter->vfs_allocated_count);
 
@@ -1047,6 +1057,20 @@ void igb_reset(struct igb_adapter *adapter)
 	fc->send_xon = 1;
 	fc->type = fc->original_type;
 
+	/* disable receive for all VFs and wait one second */
+	if (adapter->vfs_allocated_count) {
+		int i;
+		for (i = 0 ; i < adapter->vfs_allocated_count; i++)
+			adapter->vf_data[i].clear_to_send = false;
+
+		/* ping all the active vfs to let them know we are going down */
+			igb_ping_all_vfs(adapter);
+
+		/* disable transmits and receives */
+		wr32(E1000_VFRE, 0);
+		wr32(E1000_VFTE, 0);
+	}
+
 	/* Allow time for pending master requests to run */
 	adapter->hw.mac.ops.reset_hw(&adapter->hw);
 	wr32(E1000_WUC, 0);
@@ -1624,6 +1648,7 @@ static int igb_open(struct net_device *netdev)
 	 * clean_rx handler before we do so.  */
 	igb_configure(adapter);
 
+	igb_vmm_control(adapter);
 	igb_set_rah_pool(hw, adapter->vfs_allocated_count, 0);
 	igb_set_vmolr(hw, adapter->vfs_allocated_count);
 
@@ -2456,6 +2481,8 @@ static void igb_set_multi(struct net_device *netdev)
 	                        mac->rar_entry_count);
 
 	igb_set_mc_list_pools(adapter, i, mac->rar_entry_count);
+	igb_restore_vf_multicasts(adapter);
+
 	kfree(mta_list);
 }
 
@@ -2571,6 +2598,8 @@ static void igb_watchdog_task(struct work_struct *work)
 			netif_carrier_on(netdev);
 			netif_tx_wake_all_queues(netdev);
 
+			igb_ping_all_vfs(adapter);
+
 			/* link state has changed, schedule phy info update */
 			if (!test_bit(__IGB_DOWN, &adapter->state))
 				mod_timer(&adapter->phy_info_timer,
@@ -2586,6 +2615,8 @@ static void igb_watchdog_task(struct work_struct *work)
 			netif_carrier_off(netdev);
 			netif_tx_stop_all_queues(netdev);
 
+			igb_ping_all_vfs(adapter);
+
 			/* link state has changed, schedule phy info update */
 			if (!test_bit(__IGB_DOWN, &adapter->state))
 				mod_timer(&adapter->phy_info_timer,
@@ -3523,15 +3554,19 @@ static irqreturn_t igb_msix_other(int irq, void *data)
 		/* HW is reporting DMA is out of sync */
 		adapter->stats.doosync++;
 	}
-	if (!(icr & E1000_ICR_LSC))
-		goto no_link_interrupt;
-	hw->mac.get_link_status = 1;
-	/* guard against interrupt when we're going down */
-	if (!test_bit(__IGB_DOWN, &adapter->state))
-		mod_timer(&adapter->watchdog_timer, jiffies + 1);
 
-no_link_interrupt:
-	wr32(E1000_IMS, E1000_IMS_LSC | E1000_IMS_DOUTSYNC);
+	/* Check for a mailbox event */
+	if (icr & E1000_ICR_VMMB)
+		igb_msg_task(adapter);
+
+	if (icr & E1000_ICR_LSC) {
+		hw->mac.get_link_status = 1;
+		/* guard against interrupt when we're going down */
+		if (!test_bit(__IGB_DOWN, &adapter->state))
+			mod_timer(&adapter->watchdog_timer, jiffies + 1);
+	}
+
+	wr32(E1000_IMS, E1000_IMS_LSC | E1000_IMS_DOUTSYNC | E1000_IMS_VMMB);
 	wr32(E1000_EIMS, adapter->eims_other);
 
 	return IRQ_HANDLED;
@@ -3719,6 +3754,317 @@ static int igb_notify_dca(struct notifier_block *nb, unsigned long event,
 }
 #endif /* CONFIG_IGB_DCA */
 
+static void igb_ping_all_vfs(struct igb_adapter *adapter)
+{
+	struct e1000_hw *hw = &adapter->hw;
+	u32 ping;
+	int i;
+
+	for (i = 0 ; i < adapter->vfs_allocated_count; i++) {
+		ping = E1000_PF_CONTROL_MSG;
+		if (adapter->vf_data[i].clear_to_send)
+			ping |= E1000_VT_MSGTYPE_CTS;
+		igb_write_mbx(hw, &ping, 1, i);
+	}
+}
+
+static int igb_set_vf_multicasts(struct igb_adapter *adapter,
+				  u32 *msgbuf, u32 vf)
+{
+	int n = (msgbuf[0] & E1000_VT_MSGINFO_MASK) >> E1000_VT_MSGINFO_SHIFT;
+	u16 *hash_list = (u16 *)&msgbuf[1];
+	struct vf_data_storage *vf_data = &adapter->vf_data[vf];
+	int i;
+
+	/* only up to 30 hash values supported */
+	if (n > 30)
+		n = 30;
+
+	/* salt away the number of multi cast addresses assigned
+	 * to this VF for later use to restore when the PF multi cast
+	 * list changes
+	 */
+	vf_data->num_vf_mc_hashes = n;
+
+	/* VFs are limited to using the MTA hash table for their multicast
+	 * addresses */
+	for (i = 0; i < n; i++)
+		vf_data->vf_mc_hashes[i] = hash_list[i];;
+
+	/* Flush and reset the mta with the new values */
+	igb_set_multi(adapter->netdev);
+
+	return 0;
+}
+
+static void igb_restore_vf_multicasts(struct igb_adapter *adapter)
+{
+	struct e1000_hw *hw = &adapter->hw;
+	struct vf_data_storage *vf_data;
+	int i, j;
+
+	for (i = 0; i < adapter->vfs_allocated_count; i++) {
+		vf_data = &adapter->vf_data[i];
+		for (j = 0; j < vf_data[i].num_vf_mc_hashes; j++)
+			igb_mta_set(hw, vf_data->vf_mc_hashes[j]);
+	}
+}
+
+static void igb_clear_vf_vfta(struct igb_adapter *adapter, u32 vf)
+{
+	struct e1000_hw *hw = &adapter->hw;
+	u32 pool_mask, reg, vid;
+	int i;
+
+	pool_mask = 1 << (E1000_VLVF_POOLSEL_SHIFT + vf);
+
+	/* Find the vlan filter for this id */
+	for (i = 0; i < E1000_VLVF_ARRAY_SIZE; i++) {
+		reg = rd32(E1000_VLVF(i));
+
+		/* remove the vf from the pool */
+		reg &= ~pool_mask;
+
+		/* if pool is empty then remove entry from vfta */
+		if (!(reg & E1000_VLVF_POOLSEL_MASK) &&
+		    (reg & E1000_VLVF_VLANID_ENABLE)) {
+			reg = 0;
+			vid = reg & E1000_VLVF_VLANID_MASK;
+			igb_vfta_set(hw, vid, false);
+		}
+
+		wr32(E1000_VLVF(i), reg);
+	}
+}
+
+static s32 igb_vlvf_set(struct igb_adapter *adapter, u32 vid, bool add, u32 vf)
+{
+	struct e1000_hw *hw = &adapter->hw;
+	u32 reg, i;
+
+	/* It is an error to call this function when VFs are not enabled */
+	if (!adapter->vfs_allocated_count)
+		return -1;
+
+	/* Find the vlan filter for this id */
+	for (i = 0; i < E1000_VLVF_ARRAY_SIZE; i++) {
+		reg = rd32(E1000_VLVF(i));
+		if ((reg & E1000_VLVF_VLANID_ENABLE) &&
+		    vid == (reg & E1000_VLVF_VLANID_MASK))
+			break;
+	}
+
+	if (add) {
+		if (i == E1000_VLVF_ARRAY_SIZE) {
+			/* Did not find a matching VLAN ID entry that was
+			 * enabled.  Search for a free filter entry, i.e.
+			 * one without the enable bit set
+			 */
+			for (i = 0; i < E1000_VLVF_ARRAY_SIZE; i++) {
+				reg = rd32(E1000_VLVF(i));
+				if (!(reg & E1000_VLVF_VLANID_ENABLE))
+					break;
+			}
+		}
+		if (i < E1000_VLVF_ARRAY_SIZE) {
+			/* Found an enabled/available entry */
+			reg |= 1 << (E1000_VLVF_POOLSEL_SHIFT + vf);
+
+			/* if !enabled we need to set this up in vfta */
+			if (!(reg & E1000_VLVF_VLANID_ENABLE)) {
+				/* add VID to filter table */
+				igb_vfta_set(hw, vid, true);
+				reg |= E1000_VLVF_VLANID_ENABLE;
+			}
+
+			wr32(E1000_VLVF(i), reg);
+			return 0;
+		}
+	} else {
+		if (i < E1000_VLVF_ARRAY_SIZE) {
+			/* remove vf from the pool */
+			reg &= ~(1 << (E1000_VLVF_POOLSEL_SHIFT + vf));
+			/* if pool is empty then remove entry from vfta */
+			if (!(reg & E1000_VLVF_POOLSEL_MASK)) {
+				reg = 0;
+				igb_vfta_set(hw, vid, false);
+			}
+			wr32(E1000_VLVF(i), reg);
+			return 0;
+		}
+	}
+	return -1;
+}
+
+static int igb_set_vf_vlan(struct igb_adapter *adapter, u32 *msgbuf, u32 vf)
+{
+	int add = (msgbuf[0] & E1000_VT_MSGINFO_MASK) >> E1000_VT_MSGINFO_SHIFT;
+	int vid = (msgbuf[1] & E1000_VLVF_VLANID_MASK);
+
+	return igb_vlvf_set(adapter, vid, add, vf);
+}
+
+static inline void igb_vf_reset_event(struct igb_adapter *adapter, u32 vf)
+{
+	struct e1000_hw *hw = &adapter->hw;
+
+	/* disable mailbox functionality for vf */
+	adapter->vf_data[vf].clear_to_send = false;
+
+	/* reset offloads to defaults */
+	igb_set_vmolr(hw, vf);
+
+	/* reset vlans for device */
+	igb_clear_vf_vfta(adapter, vf);
+
+	/* reset multicast table array for vf */
+	adapter->vf_data[vf].num_vf_mc_hashes = 0;
+
+	/* Flush and reset the mta with the new values */
+	igb_set_multi(adapter->netdev);
+}
+
+static inline void igb_vf_reset_msg(struct igb_adapter *adapter, u32 vf)
+{
+	struct e1000_hw *hw = &adapter->hw;
+	unsigned char *vf_mac = adapter->vf_data[vf].vf_mac_addresses;
+	u32 reg, msgbuf[3];
+	u8 *addr = (u8 *)(&msgbuf[1]);
+
+	/* process all the same items cleared in a function level reset */
+	igb_vf_reset_event(adapter, vf);
+
+	/* set vf mac address */
+	igb_rar_set(hw, vf_mac, vf + 1);
+	igb_set_rah_pool(hw, vf, vf + 1);
+
+	/* enable transmit and receive for vf */
+	reg = rd32(E1000_VFTE);
+	wr32(E1000_VFTE, reg | (1 << vf));
+	reg = rd32(E1000_VFRE);
+	wr32(E1000_VFRE, reg | (1 << vf));
+
+	/* enable mailbox functionality for vf */
+	adapter->vf_data[vf].clear_to_send = true;
+
+	/* reply to reset with ack and vf mac address */
+	msgbuf[0] = E1000_VF_RESET | E1000_VT_MSGTYPE_ACK;
+	memcpy(addr, vf_mac, 6);
+	igb_write_mbx(hw, msgbuf, 3, vf);
+}
+
+static int igb_set_vf_mac_addr(struct igb_adapter *adapter, u32 *msg, int vf)
+{
+		unsigned char *addr = (char *)&msg[1];
+		int err = -1;
+
+		if (is_valid_ether_addr(addr))
+			err = igb_set_vf_mac(adapter, vf, addr);
+
+		return err;
+
+}
+
+static void igb_rcv_ack_from_vf(struct igb_adapter *adapter, u32 vf)
+{
+	struct e1000_hw *hw = &adapter->hw;
+	u32 msg = E1000_VT_MSGTYPE_NACK;
+
+	/* if device isn't clear to send it shouldn't be reading either */
+	if (!adapter->vf_data[vf].clear_to_send)
+		igb_write_mbx(hw, &msg, 1, vf);
+}
+
+
+static void igb_msg_task(struct igb_adapter *adapter)
+{
+	struct e1000_hw *hw = &adapter->hw;
+	u32 vf;
+
+	for (vf = 0; vf < adapter->vfs_allocated_count; vf++) {
+		/* process any reset requests */
+		if (!igb_check_for_rst(hw, vf)) {
+			adapter->vf_data[vf].clear_to_send = false;
+			igb_vf_reset_event(adapter, vf);
+		}
+
+		/* process any messages pending */
+		if (!igb_check_for_msg(hw, vf))
+			igb_rcv_msg_from_vf(adapter, vf);
+
+		/* process any acks */
+		if (!igb_check_for_ack(hw, vf))
+			igb_rcv_ack_from_vf(adapter, vf);
+
+	}
+}
+
+static int igb_rcv_msg_from_vf(struct igb_adapter *adapter, u32 vf)
+{
+	u32 mbx_size = E1000_VFMAILBOX_SIZE;
+	u32 msgbuf[mbx_size];
+	struct e1000_hw *hw = &adapter->hw;
+	s32 retval;
+
+	retval = igb_read_mbx(hw, msgbuf, mbx_size, vf);
+
+	if (retval)
+		dev_err(&adapter->pdev->dev,
+		        "Error receiving message from VF\n");
+
+	/* this is a message we already processed, do nothing */
+	if (msgbuf[0] & (E1000_VT_MSGTYPE_ACK | E1000_VT_MSGTYPE_NACK))
+		return retval;
+
+	/*
+	 * until the vf completes a reset it should not be
+	 * allowed to start any configuration.
+	 */
+
+	if (msgbuf[0] == E1000_VF_RESET) {
+		igb_vf_reset_msg(adapter, vf);
+
+		return retval;
+	}
+
+	if (!adapter->vf_data[vf].clear_to_send) {
+		msgbuf[0] |= E1000_VT_MSGTYPE_NACK;
+		igb_write_mbx(hw, msgbuf, 1, vf);
+		return retval;
+	}
+
+	switch ((msgbuf[0] & 0xFFFF)) {
+	case E1000_VF_SET_MAC_ADDR:
+		retval = igb_set_vf_mac_addr(adapter, msgbuf, vf);
+		break;
+	case E1000_VF_SET_MULTICAST:
+		retval = igb_set_vf_multicasts(adapter, msgbuf, vf);
+		break;
+	case E1000_VF_SET_LPE:
+		retval = igb_set_vf_rlpml(adapter, msgbuf[1], vf);
+		break;
+	case E1000_VF_SET_VLAN:
+		retval = igb_set_vf_vlan(adapter, msgbuf, vf);
+		break;
+	default:
+		dev_err(&adapter->pdev->dev, "Unhandled Msg %08x\n", msgbuf[0]);
+		retval = -1;
+		break;
+	}
+
+	/* notify the VF of the results of what it sent us */
+	if (retval)
+		msgbuf[0] |= E1000_VT_MSGTYPE_NACK;
+	else
+		msgbuf[0] |= E1000_VT_MSGTYPE_ACK;
+
+	msgbuf[0] |= E1000_VT_MSGTYPE_CTS;
+
+	igb_write_mbx(hw, msgbuf, 1, vf);
+
+	return retval;
+}
+
 /**
  * igb_intr_msi - Interrupt Handler
  * @irq: interrupt number
@@ -4582,24 +4928,25 @@ static void igb_vlan_rx_add_vid(struct net_device *netdev, u16 vid)
 {
 	struct igb_adapter *adapter = netdev_priv(netdev);
 	struct e1000_hw *hw = &adapter->hw;
-	u32 vfta, index;
+	int pf_id = adapter->vfs_allocated_count;
 
 	if ((hw->mng_cookie.status &
 	     E1000_MNG_DHCP_COOKIE_STATUS_VLAN) &&
 	    (vid == adapter->mng_vlan_id))
 		return;
-	/* add VID to filter table */
-	index = (vid >> 5) & 0x7F;
-	vfta = array_rd32(E1000_VFTA, index);
-	vfta |= (1 << (vid & 0x1F));
-	igb_write_vfta(&adapter->hw, index, vfta);
+
+	/* add vid to vlvf if sr-iov is enabled,
+	 * if that fails add directly to filter table */
+	if (igb_vlvf_set(adapter, vid, true, pf_id))
+		igb_vfta_set(hw, vid, true);
+
 }
 
 static void igb_vlan_rx_kill_vid(struct net_device *netdev, u16 vid)
 {
 	struct igb_adapter *adapter = netdev_priv(netdev);
 	struct e1000_hw *hw = &adapter->hw;
-	u32 vfta, index;
+	int pf_id = adapter->vfs_allocated_count;
 
 	igb_irq_disable(adapter);
 	vlan_group_set_device(adapter->vlgrp, vid, NULL);
@@ -4615,11 +4962,10 @@ static void igb_vlan_rx_kill_vid(struct net_device *netdev, u16 vid)
 		return;
 	}
 
-	/* remove VID from filter table */
-	index = (vid >> 5) & 0x7F;
-	vfta = array_rd32(E1000_VFTA, index);
-	vfta &= ~(1 << (vid & 0x1F));
-	igb_write_vfta(&adapter->hw, index, vfta);
+	/* remove vid from vlvf if sr-iov is enabled,
+	 * if not in vlvf remove from vfta */
+	if (igb_vlvf_set(adapter, vid, false, pf_id))
+		igb_vfta_set(hw, vid, false);
 }
 
 static void igb_restore_vlan(struct igb_adapter *adapter)
@@ -4950,8 +5296,8 @@ static inline void igb_set_vmolr(struct e1000_hw *hw, int vfn)
 	wr32(E1000_VMOLR(vfn), reg_data);
 }
 
-static inline void igb_set_vf_rlpml(struct igb_adapter *adapter, int size,
-                                    int vfn)
+static inline int igb_set_vf_rlpml(struct igb_adapter *adapter, int size,
+                                 int vfn)
 {
 	struct e1000_hw *hw = &adapter->hw;
 	u32 vmolr;
@@ -4960,6 +5306,8 @@ static inline void igb_set_vf_rlpml(struct igb_adapter *adapter, int size,
 	vmolr &= ~E1000_VMOLR_RLPML_MASK;
 	vmolr |= size | E1000_VMOLR_LPE;
 	wr32(E1000_VMOLR(vfn), vmolr);
+
+	return 0;
 }
 
 static inline void igb_set_rah_pool(struct e1000_hw *hw, int pool, int entry)
@@ -4985,4 +5333,37 @@ static void igb_set_mc_list_pools(struct igb_adapter *adapter,
 		igb_set_rah_pool(hw, adapter->vfs_allocated_count, i);
 }
 
+static int igb_set_vf_mac(struct igb_adapter *adapter,
+                          int vf, unsigned char *mac_addr)
+{
+	struct e1000_hw *hw = &adapter->hw;
+	int rar_entry = vf + 1; /* VF MAC addresses start at entry 1 */
+
+	igb_rar_set(hw, mac_addr, rar_entry);
+
+	memcpy(adapter->vf_data[vf].vf_mac_addresses, mac_addr, 6);
+
+	igb_set_rah_pool(hw, vf, rar_entry);
+
+	return 0;
+}
+
+static void igb_vmm_control(struct igb_adapter *adapter)
+{
+	struct e1000_hw *hw = &adapter->hw;
+	u32 reg_data;
+
+	if (!adapter->vfs_allocated_count)
+		return;
+
+	/* VF's need PF reset indication before they
+	 * can send/receive mail */
+	reg_data = rd32(E1000_CTRL_EXT);
+	reg_data |= E1000_CTRL_EXT_PFRSTD;
+	wr32(E1000_CTRL_EXT, reg_data);
+
+	igb_vmdq_set_loopback_pf(hw, true);
+	igb_vmdq_set_replication_pf(hw, true);
+}
+
 /* igb_main.c */
-- 
cgit v1.2.3-70-g09d2


From 376801172ade1ab80efdd42dba859282400885ed Mon Sep 17 00:00:00 2001
From: Alexander Duyck <alexander.h.duyck@intel.com>
Date: Thu, 19 Feb 2009 20:40:30 -0800
Subject: igb: this patch addes the sr-iov enablement option via num_vfs
 parameter

This code adds a module parameter called num_vfs which defines if the
driver should attempt to use sr-iov and if so how many VFs should be
enabled.

Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 drivers/net/igb/igb_main.c | 125 +++++++++++++++++++++++++++++++++++++++++++--
 1 file changed, 120 insertions(+), 5 deletions(-)

(limited to 'drivers/net/igb')

diff --git a/drivers/net/igb/igb_main.c b/drivers/net/igb/igb_main.c
index b9e7980e3f4..6cae258df96 100644
--- a/drivers/net/igb/igb_main.c
+++ b/drivers/net/igb/igb_main.c
@@ -146,12 +146,18 @@ static struct notifier_block dca_notifier = {
 	.priority	= 0
 };
 #endif
-
 #ifdef CONFIG_NET_POLL_CONTROLLER
 /* for netdump / net console */
 static void igb_netpoll(struct net_device *);
 #endif
 
+#ifdef CONFIG_PCI_IOV
+static ssize_t igb_set_num_vfs(struct device *, struct device_attribute *,
+                               const char *, size_t);
+static ssize_t igb_show_num_vfs(struct device *, struct device_attribute *,
+                               char *);
+DEVICE_ATTR(num_vfs, S_IRUGO | S_IWUSR, igb_show_num_vfs, igb_set_num_vfs);
+#endif
 static pci_ers_result_t igb_io_error_detected(struct pci_dev *,
 		     pci_channel_state_t);
 static pci_ers_result_t igb_io_slot_reset(struct pci_dev *);
@@ -588,9 +594,6 @@ static int igb_request_msix(struct igb_adapter *adapter)
 			goto out;
 		ring->itr_register = E1000_EITR(0) + (vector << 2);
 		ring->itr_val = adapter->itr;
-		/* overwrite the poll routine for MSIX, we've already done
-		 * netif_napi_add */
-		ring->napi.poll = &igb_clean_rx_ring_msix;
 		vector++;
 	}
 
@@ -1392,6 +1395,19 @@ static int __devinit igb_probe(struct pci_dev *pdev,
 	if (err)
 		goto err_register;
 
+#ifdef CONFIG_PCI_IOV
+	/* since iov functionality isn't critical to base device function we
+	 * can accept failure.  If it fails we don't allow iov to be enabled */
+	if (hw->mac.type == e1000_82576) {
+		err = pci_enable_sriov(pdev, 0);
+		if (!err)
+			err = device_create_file(&netdev->dev,
+			                         &dev_attr_num_vfs);
+		if (err)
+			dev_err(&pdev->dev, "Failed to initialize IOV\n");
+	}
+
+#endif
 #ifdef CONFIG_IGB_DCA
 	if (dca_add_requester(&pdev->dev) == 0) {
 		adapter->flags |= IGB_FLAG_DCA_ENABLED;
@@ -1547,6 +1563,20 @@ static void __devexit igb_remove(struct pci_dev *pdev)
 
 	igb_free_queues(adapter);
 
+#ifdef CONFIG_PCI_IOV
+	/* reclaim resources allocated to VFs */
+	if (adapter->vf_data) {
+		/* disable iov and allow time for transactions to clear */
+		pci_disable_sriov(pdev);
+		msleep(500);
+
+		kfree(adapter->vf_data);
+		adapter->vf_data = NULL;
+		wr32(E1000_IOVCTL, E1000_IOVCTL_REUSE_VFQ);
+		msleep(100);
+		dev_info(&pdev->dev, "IOV Disabled\n");
+	}
+#endif
 	iounmap(hw->hw_addr);
 	if (hw->flash_address)
 		iounmap(hw->flash_address);
@@ -5341,7 +5371,7 @@ static int igb_set_vf_mac(struct igb_adapter *adapter,
 
 	igb_rar_set(hw, mac_addr, rar_entry);
 
-	memcpy(adapter->vf_data[vf].vf_mac_addresses, mac_addr, 6);
+	memcpy(adapter->vf_data[vf].vf_mac_addresses, mac_addr, ETH_ALEN);
 
 	igb_set_rah_pool(hw, vf, rar_entry);
 
@@ -5366,4 +5396,89 @@ static void igb_vmm_control(struct igb_adapter *adapter)
 	igb_vmdq_set_replication_pf(hw, true);
 }
 
+#ifdef CONFIG_PCI_IOV
+static ssize_t igb_show_num_vfs(struct device *dev,
+                                struct device_attribute *attr, char *buf)
+{
+	struct igb_adapter *adapter = netdev_priv(to_net_dev(dev));
+
+	return sprintf(buf, "%d\n", adapter->vfs_allocated_count);
+}
+
+static ssize_t igb_set_num_vfs(struct device *dev,
+                               struct device_attribute *attr,
+                               const char *buf, size_t count)
+{
+	struct net_device *netdev = to_net_dev(dev);
+	struct igb_adapter *adapter = netdev_priv(netdev);
+	struct e1000_hw *hw = &adapter->hw;
+	struct pci_dev *pdev = adapter->pdev;
+	unsigned int num_vfs, i;
+	unsigned char mac_addr[ETH_ALEN];
+	int err;
+
+	sscanf(buf, "%u", &num_vfs);
+
+	if (num_vfs > 7)
+		num_vfs = 7;
+
+	/* value unchanged do nothing */
+	if (num_vfs == adapter->vfs_allocated_count)
+		return count;
+
+	if (netdev->flags & IFF_UP)
+		igb_close(netdev);
+
+	igb_reset_interrupt_capability(adapter);
+	igb_free_queues(adapter);
+	adapter->tx_ring = NULL;
+	adapter->rx_ring = NULL;
+	adapter->vfs_allocated_count = 0;
+
+	/* reclaim resources allocated to VFs since we are changing count */
+	if (adapter->vf_data) {
+		/* disable iov and allow time for transactions to clear */
+		pci_disable_sriov(pdev);
+		msleep(500);
+
+		kfree(adapter->vf_data);
+		adapter->vf_data = NULL;
+		wr32(E1000_IOVCTL, E1000_IOVCTL_REUSE_VFQ);
+		msleep(100);
+		dev_info(&pdev->dev, "IOV Disabled\n");
+	}
+
+	if (num_vfs) {
+		adapter->vf_data = kcalloc(num_vfs,
+		                           sizeof(struct vf_data_storage),
+		                           GFP_KERNEL);
+		if (!adapter->vf_data) {
+			dev_err(&pdev->dev, "Could not allocate VF private "
+				"data - IOV enable failed\n");
+		} else {
+			err = pci_enable_sriov(pdev, num_vfs);
+			if (!err) {
+				adapter->vfs_allocated_count = num_vfs;
+				dev_info(&pdev->dev, "%d vfs allocated\n", num_vfs);
+				for (i = 0; i < adapter->vfs_allocated_count; i++) {
+					random_ether_addr(mac_addr);
+					igb_set_vf_mac(adapter, i, mac_addr);
+				}
+			} else {
+				kfree(adapter->vf_data);
+				adapter->vf_data = NULL;
+			}
+		}
+	}
+
+	igb_set_interrupt_capability(adapter);
+	igb_alloc_queues(adapter);
+	igb_reset(adapter);
+
+	if (netdev->flags & IFF_UP)
+		igb_open(netdev);
+
+	return count;
+}
+#endif /* CONFIG_PCI_IOV */
 /* igb_main.c */
-- 
cgit v1.2.3-70-g09d2


From 19147bb5f1f7e7ee79f0c92f59f67da8c0031dc0 Mon Sep 17 00:00:00 2001
From: Alexander Duyck <alexander.h.duyck@intel.com>
Date: Mon, 2 Mar 2009 16:01:53 -0800
Subject: igb: remove skb_orphan calls

Remove skb_orphan call from igb driver as it can cause multiple issues due
to the fact that it is calling the desctructor and removing the skb from
the socket prior to transmission.

The call was added to improve performance but did so by allowing the skb to
be removed from the socket which gave the socket more window space to
transmit.  The performance gain is not worth the extra problems that this
kind of workaround can introduce as this could lead to a potential DoS if a
UDP stream decided to monopolize the transmit path.

Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com>
Acked-by: Mitch Williams <mitch.a.williams@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 drivers/net/igb/igb_main.c | 11 -----------
 1 file changed, 11 deletions(-)

(limited to 'drivers/net/igb')

diff --git a/drivers/net/igb/igb_main.c b/drivers/net/igb/igb_main.c
index 6cae258df96..78558f840fd 100644
--- a/drivers/net/igb/igb_main.c
+++ b/drivers/net/igb/igb_main.c
@@ -3258,14 +3258,6 @@ static int igb_xmit_frame_ring_adv(struct sk_buff *skb,
 	if (unlikely(shtx->hardware)) {
 		shtx->in_progress = 1;
 		tx_flags |= IGB_TX_FLAGS_TSTAMP;
-	} else if (likely(!shtx->software)) {
-		/*
-		 * TODO: can this be solved in dev.c:dev_hard_start_xmit()?
-		 * There are probably unmodified driver which do something
-		 * like this and thus don't work in combination with
-		 * SOF_TIMESTAMPING_TX_SOFTWARE.
-		 */
-		skb_orphan(skb);
 	}
 
 	if (adapter->vlgrp && vlan_tx_tag_present(skb)) {
@@ -4253,9 +4245,6 @@ static void igb_tx_hwtstamp(struct igb_adapter *adapter, struct sk_buff *skb)
 				timecompare_transform(&adapter->compare, ns);
 			skb_tstamp_tx(skb, &shhwtstamps);
 		}
-
-		/* delayed orphaning: skb_tstamp_tx() needs the socket */
-		skb_orphan(skb);
 	}
 }
 
-- 
cgit v1.2.3-70-g09d2


From 92be791759945a9170394e92c03a2e75175d6bbe Mon Sep 17 00:00:00 2001
From: Maciej Sosnowski <maciej.sosnowski@intel.com>
Date: Fri, 13 Mar 2009 20:40:21 +0000
Subject: igb: switch to new dca API

With the new DCA API, the driver should use dca3_get_tag() instead of
the obsolete dca_get_tag().

Signed-off-by: Maciej Sosnowski < maciej.sosnowski@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 drivers/net/igb/igb_main.c | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

(limited to 'drivers/net/igb')

diff --git a/drivers/net/igb/igb_main.c b/drivers/net/igb/igb_main.c
index 78558f840fd..2cb267fc9c7 100644
--- a/drivers/net/igb/igb_main.c
+++ b/drivers/net/igb/igb_main.c
@@ -3670,11 +3670,11 @@ static void igb_update_rx_dca(struct igb_ring *rx_ring)
 		dca_rxctrl = rd32(E1000_DCA_RXCTRL(q));
 		if (hw->mac.type == e1000_82576) {
 			dca_rxctrl &= ~E1000_DCA_RXCTRL_CPUID_MASK_82576;
-			dca_rxctrl |= dca_get_tag(cpu) <<
+			dca_rxctrl |= dca3_get_tag(&adapter->pdev->dev, cpu) <<
 			              E1000_DCA_RXCTRL_CPUID_SHIFT;
 		} else {
 			dca_rxctrl &= ~E1000_DCA_RXCTRL_CPUID_MASK;
-			dca_rxctrl |= dca_get_tag(cpu);
+			dca_rxctrl |= dca3_get_tag(&adapter->pdev->dev, cpu);
 		}
 		dca_rxctrl |= E1000_DCA_RXCTRL_DESC_DCA_EN;
 		dca_rxctrl |= E1000_DCA_RXCTRL_HEAD_DCA_EN;
@@ -3697,11 +3697,11 @@ static void igb_update_tx_dca(struct igb_ring *tx_ring)
 		dca_txctrl = rd32(E1000_DCA_TXCTRL(q));
 		if (hw->mac.type == e1000_82576) {
 			dca_txctrl &= ~E1000_DCA_TXCTRL_CPUID_MASK_82576;
-			dca_txctrl |= dca_get_tag(cpu) <<
+			dca_txctrl |= dca3_get_tag(&adapter->pdev->dev, cpu) <<
 			              E1000_DCA_TXCTRL_CPUID_SHIFT;
 		} else {
 			dca_txctrl &= ~E1000_DCA_TXCTRL_CPUID_MASK;
-			dca_txctrl |= dca_get_tag(cpu);
+			dca_txctrl |= dca3_get_tag(&adapter->pdev->dev, cpu);
 		}
 		dca_txctrl |= E1000_DCA_TXCTRL_DESC_DCA_EN;
 		wr32(E1000_DCA_TXCTRL(q), dca_txctrl);
-- 
cgit v1.2.3-70-g09d2


From 5e6d5b17db099dd575490545a4f0af9a99fa8bbe Mon Sep 17 00:00:00 2001
From: Alexander Duyck <alexander.h.duyck@intel.com>
Date: Fri, 13 Mar 2009 20:40:38 +0000
Subject: igb: remove netif running call from igb_poll

The netif_running check in igb poll is a hold over from the use of fake
netdevs to use multiple queues with NAPI prior to 2.6.24.  It is no longer
necessary to have the call there and it currently can cause errors if
work_done == budget.

Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com>
Acked-by: Jesse Brandeburg <jesse.brandeburg@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 drivers/net/igb/igb_main.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

(limited to 'drivers/net/igb')

diff --git a/drivers/net/igb/igb_main.c b/drivers/net/igb/igb_main.c
index 2cb267fc9c7..4ff242de981 100644
--- a/drivers/net/igb/igb_main.c
+++ b/drivers/net/igb/igb_main.c
@@ -4187,7 +4187,6 @@ static int igb_poll(struct napi_struct *napi, int budget)
 {
 	struct igb_ring *rx_ring = container_of(napi, struct igb_ring, napi);
 	struct igb_adapter *adapter = rx_ring->adapter;
-	struct net_device *netdev = adapter->netdev;
 	int work_done = 0;
 
 #ifdef CONFIG_IGB_DCA
@@ -4206,7 +4205,7 @@ static int igb_poll(struct napi_struct *napi, int budget)
 	}
 
 	/* If not enough Rx work done, exit the polling mode */
-	if ((work_done < budget) || !netif_running(netdev)) {
+	if (work_done < budget) {
 		napi_complete(napi);
 		igb_rx_irq_enable(rx_ring);
 	}
-- 
cgit v1.2.3-70-g09d2


From bd38e5d124ddd11c457c5ae7242cd039045d80e0 Mon Sep 17 00:00:00 2001
From: Alexander Duyck <alexander.h.duyck@intel.com>
Date: Fri, 13 Mar 2009 20:40:58 +0000
Subject: igb: resolve warning of unused adapter struct

If DCA is undefined then the adapter struct becomes unnecessary.  To
resolve this issue the DCA calls can simply make a call to the adapter
struct through the rx_ring adapter struct member.

Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com>
Acked-by: Jesse Brandeburg <jesse.brandeburg@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 drivers/net/igb/igb_main.c | 5 ++---
 1 file changed, 2 insertions(+), 3 deletions(-)

(limited to 'drivers/net/igb')

diff --git a/drivers/net/igb/igb_main.c b/drivers/net/igb/igb_main.c
index 4ff242de981..5277d56e989 100644
--- a/drivers/net/igb/igb_main.c
+++ b/drivers/net/igb/igb_main.c
@@ -4186,18 +4186,17 @@ static inline void igb_rx_irq_enable(struct igb_ring *rx_ring)
 static int igb_poll(struct napi_struct *napi, int budget)
 {
 	struct igb_ring *rx_ring = container_of(napi, struct igb_ring, napi);
-	struct igb_adapter *adapter = rx_ring->adapter;
 	int work_done = 0;
 
 #ifdef CONFIG_IGB_DCA
-	if (adapter->flags & IGB_FLAG_DCA_ENABLED)
+	if (rx_ring->adapter->flags & IGB_FLAG_DCA_ENABLED)
 		igb_update_rx_dca(rx_ring);
 #endif
 	igb_clean_rx_irq_adv(rx_ring, &work_done, budget);
 
 	if (rx_ring->buddy) {
 #ifdef CONFIG_IGB_DCA
-		if (adapter->flags & IGB_FLAG_DCA_ENABLED)
+		if (rx_ring->adapter->flags & IGB_FLAG_DCA_ENABLED)
 			igb_update_tx_dca(rx_ring->buddy);
 #endif
 		if (!igb_clean_tx_irq(rx_ring->buddy))
-- 
cgit v1.2.3-70-g09d2


From a2cf8b6ce17415fc84f51300fd6be372d95bfcea Mon Sep 17 00:00:00 2001
From: Alexander Duyck <alexander.h.duyck@intel.com>
Date: Fri, 13 Mar 2009 20:41:17 +0000
Subject: igb: support wol on second port

We need to support wol on the second port for situations such as when the
lan ports are on the motherboard itself.

Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com>
Acked-by: Jesse Brandeburg <jesse.brandeburg@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 drivers/net/igb/e1000_defines.h | 1 +
 drivers/net/igb/igb_main.c      | 5 +++--
 2 files changed, 4 insertions(+), 2 deletions(-)

(limited to 'drivers/net/igb')

diff --git a/drivers/net/igb/e1000_defines.h b/drivers/net/igb/e1000_defines.h
index 62e378b6461..ad2d319d0f8 100644
--- a/drivers/net/igb/e1000_defines.h
+++ b/drivers/net/igb/e1000_defines.h
@@ -512,6 +512,7 @@
 #define NVM_ID_LED_SETTINGS        0x0004
 /* For SERDES output amplitude adjustment. */
 #define NVM_INIT_CONTROL2_REG      0x000F
+#define NVM_INIT_CONTROL3_PORT_B   0x0014
 #define NVM_INIT_CONTROL3_PORT_A   0x0024
 #define NVM_ALT_MAC_ADDR_PTR       0x0037
 #define NVM_CHECKSUM_REG           0x003F
diff --git a/drivers/net/igb/igb_main.c b/drivers/net/igb/igb_main.c
index 5277d56e989..f0c3a01452c 100644
--- a/drivers/net/igb/igb_main.c
+++ b/drivers/net/igb/igb_main.c
@@ -1351,9 +1351,10 @@ static int __devinit igb_probe(struct pci_dev *pdev,
 	 * enable the ACPI Magic Packet filter
 	 */
 
-	if (hw->bus.func == 0 ||
-	    hw->device_id == E1000_DEV_ID_82575EB_COPPER)
+	if (hw->bus.func == 0)
 		hw->nvm.ops.read(hw, NVM_INIT_CONTROL3_PORT_A, 1, &eeprom_data);
+	else if (hw->bus.func == 1)
+		hw->nvm.ops.read(hw, NVM_INIT_CONTROL3_PORT_B, 1, &eeprom_data);
 
 	if (eeprom_data & eeprom_apme_mask)
 		adapter->eeprom_wol |= E1000_WUFC_MAG;
-- 
cgit v1.2.3-70-g09d2


From cad6d05f5676d879bb2a48154aea26cd81ebf1bb Mon Sep 17 00:00:00 2001
From: Alexander Duyck <alexander.h.duyck@intel.com>
Date: Fri, 13 Mar 2009 20:41:37 +0000
Subject: igb: add PF to pool

Add Pf to pool if adding a VLVF register value and the VFTA bit is
already set.

This patch addresses the unlikely situation that the PF adds a vlan
entry when the vlvf is full, and a vf later adds the vlan to the vlvf.

Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 drivers/net/igb/e1000_mac.c | 21 ++++++++++++++-------
 drivers/net/igb/e1000_mac.h |  2 +-
 drivers/net/igb/igb_main.c  |  9 +++++++--
 3 files changed, 22 insertions(+), 10 deletions(-)

(limited to 'drivers/net/igb')

diff --git a/drivers/net/igb/e1000_mac.c b/drivers/net/igb/e1000_mac.c
index 2804db03e9d..f11592fe137 100644
--- a/drivers/net/igb/e1000_mac.c
+++ b/drivers/net/igb/e1000_mac.c
@@ -126,19 +126,26 @@ void igb_write_vfta(struct e1000_hw *hw, u32 offset, u32 value)
  *  Sets or clears a bit in the VLAN filter table array based on VLAN id
  *  and if we are adding or removing the filter
  **/
-void igb_vfta_set(struct e1000_hw *hw, u32 vid, bool add)
+s32 igb_vfta_set(struct e1000_hw *hw, u32 vid, bool add)
 {
 	u32 index = (vid >> E1000_VFTA_ENTRY_SHIFT) & E1000_VFTA_ENTRY_MASK;
 	u32 mask = 1 < (vid & E1000_VFTA_ENTRY_BIT_SHIFT_MASK);
-	u32 vfta;
+	u32 vfta = array_rd32(E1000_VFTA, index);
+	s32 ret_val = 0;
 
-	vfta = array_rd32(E1000_VFTA, index);
-	if (add)
-		vfta |= mask;
-	else
-		vfta &= ~mask;
+	/* bit was set/cleared before we started */
+	if ((!!(vfta & mask)) == add) {
+		ret_val = -E1000_ERR_CONFIG;
+	} else {
+		if (add)
+			vfta |= mask;
+		else
+			vfta &= ~mask;
+	}
 
 	igb_write_vfta(hw, index, vfta);
+
+	return ret_val;
 }
 
 /**
diff --git a/drivers/net/igb/e1000_mac.h b/drivers/net/igb/e1000_mac.h
index eccc3536a56..a34de526963 100644
--- a/drivers/net/igb/e1000_mac.h
+++ b/drivers/net/igb/e1000_mac.h
@@ -58,7 +58,7 @@ s32  igb_write_8bit_ctrl_reg(struct e1000_hw *hw, u32 reg,
 
 void igb_clear_hw_cntrs_base(struct e1000_hw *hw);
 void igb_clear_vfta(struct e1000_hw *hw);
-void igb_vfta_set(struct e1000_hw *hw, u32 vid, bool add);
+s32  igb_vfta_set(struct e1000_hw *hw, u32 vid, bool add);
 void igb_config_collision_dist(struct e1000_hw *hw);
 void igb_mta_set(struct e1000_hw *hw, u32 hash_value);
 void igb_put_hw_semaphore(struct e1000_hw *hw);
diff --git a/drivers/net/igb/igb_main.c b/drivers/net/igb/igb_main.c
index f0c3a01452c..a3c2f83fb49 100644
--- a/drivers/net/igb/igb_main.c
+++ b/drivers/net/igb/igb_main.c
@@ -3895,10 +3895,15 @@ static s32 igb_vlvf_set(struct igb_adapter *adapter, u32 vid, bool add, u32 vf)
 
 			/* if !enabled we need to set this up in vfta */
 			if (!(reg & E1000_VLVF_VLANID_ENABLE)) {
-				/* add VID to filter table */
-				igb_vfta_set(hw, vid, true);
+				/* add VID to filter table, if bit already set
+				 * PF must have added it outside of table */
+				if (igb_vfta_set(hw, vid, true))
+					reg |= 1 << (E1000_VLVF_POOLSEL_SHIFT +
+						adapter->vfs_allocated_count);
 				reg |= E1000_VLVF_VLANID_ENABLE;
 			}
+			reg &= ~E1000_VLVF_VLANID_MASK;
+			reg |= vid;
 
 			wr32(E1000_VLVF(i), reg);
 			return 0;
-- 
cgit v1.2.3-70-g09d2


From 75f4f382e3f92d1d2fcb77fe6ed7beda19185f0f Mon Sep 17 00:00:00 2001
From: Alexander Duyck <alexander.h.duyck@intel.com>
Date: Fri, 13 Mar 2009 20:41:55 +0000
Subject: igb: correct typo that was setting vfta mask to 1

This patch corrects a typo that was doing a less than comparison instead of
a left shift due to the fact that I didn't get enough <'s in there.

This resolves an issue in which vlans were not functioning correctly.

Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com>
Acked-by: Jesse Brandeburg <jesse.brandeburg@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 drivers/net/igb/e1000_mac.c | 2 +-
 drivers/net/igb/igb_main.c  | 2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)

(limited to 'drivers/net/igb')

diff --git a/drivers/net/igb/e1000_mac.c b/drivers/net/igb/e1000_mac.c
index f11592fe137..f4c315b5a90 100644
--- a/drivers/net/igb/e1000_mac.c
+++ b/drivers/net/igb/e1000_mac.c
@@ -129,7 +129,7 @@ void igb_write_vfta(struct e1000_hw *hw, u32 offset, u32 value)
 s32 igb_vfta_set(struct e1000_hw *hw, u32 vid, bool add)
 {
 	u32 index = (vid >> E1000_VFTA_ENTRY_SHIFT) & E1000_VFTA_ENTRY_MASK;
-	u32 mask = 1 < (vid & E1000_VFTA_ENTRY_BIT_SHIFT_MASK);
+	u32 mask = 1 << (vid & E1000_VFTA_ENTRY_BIT_SHIFT_MASK);
 	u32 vfta = array_rd32(E1000_VFTA, index);
 	s32 ret_val = 0;
 
diff --git a/drivers/net/igb/igb_main.c b/drivers/net/igb/igb_main.c
index a3c2f83fb49..ff1cd4a1ec1 100644
--- a/drivers/net/igb/igb_main.c
+++ b/drivers/net/igb/igb_main.c
@@ -3828,7 +3828,7 @@ static void igb_restore_vf_multicasts(struct igb_adapter *adapter)
 
 	for (i = 0; i < adapter->vfs_allocated_count; i++) {
 		vf_data = &adapter->vf_data[i];
-		for (j = 0; j < vf_data[i].num_vf_mc_hashes; j++)
+		for (j = 0; j < vf_data->num_vf_mc_hashes; j++)
 			igb_mta_set(hw, vf_data->vf_mc_hashes[j]);
 	}
 }
-- 
cgit v1.2.3-70-g09d2


From 9eb2341d0df6e5d33508008879987bf5bb146804 Mon Sep 17 00:00:00 2001
From: Alexander Duyck <alexander.h.duyck@intel.com>
Date: Fri, 13 Mar 2009 20:42:15 +0000
Subject: igb: add support for another dual port 82576 non-security nic

Adding device id to support 82576NS dual port copper
NIC.

Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com>
Acked-by: Jesse Brandeburg <jesse.brandeburg@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 drivers/net/igb/e1000_82575.c | 1 +
 drivers/net/igb/e1000_hw.h    | 1 +
 drivers/net/igb/igb_main.c    | 1 +
 3 files changed, 3 insertions(+)

(limited to 'drivers/net/igb')

diff --git a/drivers/net/igb/e1000_82575.c b/drivers/net/igb/e1000_82575.c
index ea63a215c90..adfe2e18ede 100644
--- a/drivers/net/igb/e1000_82575.c
+++ b/drivers/net/igb/e1000_82575.c
@@ -80,6 +80,7 @@ static s32 igb_get_invariants_82575(struct e1000_hw *hw)
 		mac->type = e1000_82575;
 		break;
 	case E1000_DEV_ID_82576:
+	case E1000_DEV_ID_82576_NS:
 	case E1000_DEV_ID_82576_FIBER:
 	case E1000_DEV_ID_82576_SERDES:
 		mac->type = e1000_82576;
diff --git a/drivers/net/igb/e1000_hw.h b/drivers/net/igb/e1000_hw.h
index d793dca1eef..4db36026f82 100644
--- a/drivers/net/igb/e1000_hw.h
+++ b/drivers/net/igb/e1000_hw.h
@@ -40,6 +40,7 @@ struct e1000_hw;
 #define E1000_DEV_ID_82576                    0x10C9
 #define E1000_DEV_ID_82576_FIBER              0x10E6
 #define E1000_DEV_ID_82576_SERDES             0x10E7
+#define E1000_DEV_ID_82576_NS                 0x150A
 #define E1000_DEV_ID_82575EB_COPPER           0x10A7
 #define E1000_DEV_ID_82575EB_FIBER_SERDES     0x10A9
 #define E1000_DEV_ID_82575GB_QUAD_COPPER      0x10D6
diff --git a/drivers/net/igb/igb_main.c b/drivers/net/igb/igb_main.c
index ff1cd4a1ec1..e464dc024ee 100644
--- a/drivers/net/igb/igb_main.c
+++ b/drivers/net/igb/igb_main.c
@@ -62,6 +62,7 @@ static const struct e1000_info *igb_info_tbl[] = {
 
 static struct pci_device_id igb_pci_tbl[] = {
 	{ PCI_VDEVICE(INTEL, E1000_DEV_ID_82576), board_82575 },
+	{ PCI_VDEVICE(INTEL, E1000_DEV_ID_82576_NS), board_82575 },
 	{ PCI_VDEVICE(INTEL, E1000_DEV_ID_82576_FIBER), board_82575 },
 	{ PCI_VDEVICE(INTEL, E1000_DEV_ID_82576_SERDES), board_82575 },
 	{ PCI_VDEVICE(INTEL, E1000_DEV_ID_82575EB_COPPER), board_82575 },
-- 
cgit v1.2.3-70-g09d2


From c8ea5ea9da338d6af015148105f07fc35eda8a92 Mon Sep 17 00:00:00 2001
From: Alexander Duyck <alexander.h.duyck@intel.com>
Date: Fri, 13 Mar 2009 20:42:35 +0000
Subject: igb: add support for 82576 quad copper adapter

Add support for 82576 copper adapter and necessary code to restrict wol for
quad port adapter to first port.

Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com>
Acked-by: Jesse Brandeburg <jesse.brandeburg@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 drivers/net/igb/e1000_82575.c |  1 +
 drivers/net/igb/e1000_hw.h    |  1 +
 drivers/net/igb/igb_ethtool.c |  9 +++++++++
 drivers/net/igb/igb_main.c    | 11 +++++++++++
 4 files changed, 22 insertions(+)

(limited to 'drivers/net/igb')

diff --git a/drivers/net/igb/e1000_82575.c b/drivers/net/igb/e1000_82575.c
index adfe2e18ede..efd9be21488 100644
--- a/drivers/net/igb/e1000_82575.c
+++ b/drivers/net/igb/e1000_82575.c
@@ -83,6 +83,7 @@ static s32 igb_get_invariants_82575(struct e1000_hw *hw)
 	case E1000_DEV_ID_82576_NS:
 	case E1000_DEV_ID_82576_FIBER:
 	case E1000_DEV_ID_82576_SERDES:
+	case E1000_DEV_ID_82576_QUAD_COPPER:
 		mac->type = e1000_82576;
 		break;
 	default:
diff --git a/drivers/net/igb/e1000_hw.h b/drivers/net/igb/e1000_hw.h
index 4db36026f82..68aac20c31c 100644
--- a/drivers/net/igb/e1000_hw.h
+++ b/drivers/net/igb/e1000_hw.h
@@ -40,6 +40,7 @@ struct e1000_hw;
 #define E1000_DEV_ID_82576                    0x10C9
 #define E1000_DEV_ID_82576_FIBER              0x10E6
 #define E1000_DEV_ID_82576_SERDES             0x10E7
+#define E1000_DEV_ID_82576_QUAD_COPPER        0x10E8
 #define E1000_DEV_ID_82576_NS                 0x150A
 #define E1000_DEV_ID_82575EB_COPPER           0x10A7
 #define E1000_DEV_ID_82575EB_FIBER_SERDES     0x10A9
diff --git a/drivers/net/igb/igb_ethtool.c b/drivers/net/igb/igb_ethtool.c
index 34a8a0fadf2..fb09c8ad9f0 100644
--- a/drivers/net/igb/igb_ethtool.c
+++ b/drivers/net/igb/igb_ethtool.c
@@ -1779,6 +1779,15 @@ static int igb_wol_exclusion(struct igb_adapter *adapter,
 		/* return success for non excluded adapter ports */
 		retval = 0;
 		break;
+	case E1000_DEV_ID_82576_QUAD_COPPER:
+		/* quad port adapters only support WoL on port A */
+		if (!(adapter->flags & IGB_FLAG_QUAD_PORT_A)) {
+			wol->supported = 0;
+			break;
+		}
+		/* return success for non excluded adapter ports */
+		retval = 0;
+		break;
 	default:
 		/* dual port cards only support WoL on port A from now on
 		 * unless it was enabled in the eeprom for port B
diff --git a/drivers/net/igb/igb_main.c b/drivers/net/igb/igb_main.c
index e464dc024ee..7124f59fb99 100644
--- a/drivers/net/igb/igb_main.c
+++ b/drivers/net/igb/igb_main.c
@@ -65,6 +65,7 @@ static struct pci_device_id igb_pci_tbl[] = {
 	{ PCI_VDEVICE(INTEL, E1000_DEV_ID_82576_NS), board_82575 },
 	{ PCI_VDEVICE(INTEL, E1000_DEV_ID_82576_FIBER), board_82575 },
 	{ PCI_VDEVICE(INTEL, E1000_DEV_ID_82576_SERDES), board_82575 },
+	{ PCI_VDEVICE(INTEL, E1000_DEV_ID_82576_QUAD_COPPER), board_82575 },
 	{ PCI_VDEVICE(INTEL, E1000_DEV_ID_82575EB_COPPER), board_82575 },
 	{ PCI_VDEVICE(INTEL, E1000_DEV_ID_82575EB_FIBER_SERDES), board_82575 },
 	{ PCI_VDEVICE(INTEL, E1000_DEV_ID_82575GB_QUAD_COPPER), board_82575 },
@@ -1375,6 +1376,16 @@ static int __devinit igb_probe(struct pci_dev *pdev,
 		if (rd32(E1000_STATUS) & E1000_STATUS_FUNC_1)
 			adapter->eeprom_wol = 0;
 		break;
+	case E1000_DEV_ID_82576_QUAD_COPPER:
+		/* if quad port adapter, disable WoL on all but port A */
+		if (global_quad_port_a != 0)
+			adapter->eeprom_wol = 0;
+		else
+			adapter->flags |= IGB_FLAG_QUAD_PORT_A;
+		/* Reset for multiple quad port adapters */
+		if (++global_quad_port_a == 4)
+			global_quad_port_a = 0;
+		break;
 	}
 
 	/* initialize the wol settings based on the eeprom settings */
-- 
cgit v1.2.3-70-g09d2


From fa4a7ef36ec834fee1719636b30d2f28f4cb0166 Mon Sep 17 00:00:00 2001
From: Arthur Jones <ajones@riverbed.com>
Date: Sat, 21 Mar 2009 16:55:07 -0700
Subject: igb: allow tx of pre-formatted vlan tagged packets

When the 82575 is fed 802.1q packets, it chokes with
an error of the form:

igb 0000:08:00.1 partial checksum but proto=81!

As the logic there was not smart enough to look into
the vlan header to pick out the encapsulated protocol.

There are times when we'd like to send these packets
out without having to configure a vlan on the interface.
Here we check for the vlan tag and allow the packet to
go out with the correct hardware checksum.

Thanks to Kand Ly <kand@riverbed.com> for discovering the
issue and the coming up with a solution.  This patch is
based upon his work.

Signed-off-by: Arthur Jones <ajones@riverbed.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 drivers/net/igb/igb_main.c | 13 ++++++++++++-
 1 file changed, 12 insertions(+), 1 deletion(-)

(limited to 'drivers/net/igb')

diff --git a/drivers/net/igb/igb_main.c b/drivers/net/igb/igb_main.c
index 7c4481b994a..39ac375487d 100644
--- a/drivers/net/igb/igb_main.c
+++ b/drivers/net/igb/igb_main.c
@@ -3008,7 +3008,18 @@ static inline bool igb_tx_csum_adv(struct igb_adapter *adapter,
 		tu_cmd |= (E1000_TXD_CMD_DEXT | E1000_ADVTXD_DTYP_CTXT);
 
 		if (skb->ip_summed == CHECKSUM_PARTIAL) {
-			switch (skb->protocol) {
+			__be16 protocol;
+
+			if (skb->protocol == cpu_to_be16(ETH_P_8021Q)) {
+				const struct vlan_ethhdr *vhdr =
+				          (const struct vlan_ethhdr*)skb->data;
+
+				protocol = vhdr->h_vlan_encapsulated_proto;
+			} else {
+				protocol = skb->protocol;
+			}
+
+			switch (protocol) {
 			case cpu_to_be16(ETH_P_IP):
 				tu_cmd |= E1000_ADVTXD_TUCMD_IPV4;
 				if (ip_hdr(skb)->protocol == IPPROTO_TCP)
-- 
cgit v1.2.3-70-g09d2


From c493ea45a4251869fe7b820e0486b73b57df7c12 Mon Sep 17 00:00:00 2001
From: Alexander Duyck <alexander.h.duyck@intel.com>
Date: Fri, 20 Mar 2009 00:16:50 +0000
Subject: igb: remove IGB_DESC_UNUSED since it is better handled by a function
 call

This patch removes IGB_DESC_UNUSED and replaces it with a function call
instead in order to cleanup some of the ugliness introduced by the macro.

Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 drivers/net/igb/igb.h      |  4 ----
 drivers/net/igb/igb_main.c | 25 ++++++++++++++++++-------
 2 files changed, 18 insertions(+), 11 deletions(-)

(limited to 'drivers/net/igb')

diff --git a/drivers/net/igb/igb.h b/drivers/net/igb/igb.h
index e18ac1bf45f..4e8464b9df2 100644
--- a/drivers/net/igb/igb.h
+++ b/drivers/net/igb/igb.h
@@ -182,10 +182,6 @@ struct igb_ring {
 	char name[IFNAMSIZ + 5];
 };
 
-#define IGB_DESC_UNUSED(R) \
-	((((R)->next_to_clean > (R)->next_to_use) ? 0 : (R)->count) + \
-	(R)->next_to_clean - (R)->next_to_use - 1)
-
 #define E1000_RX_DESC_ADV(R, i)	    \
 	(&(((union e1000_adv_rx_desc *)((R).desc))[i]))
 #define E1000_TX_DESC_ADV(R, i)	    \
diff --git a/drivers/net/igb/igb_main.c b/drivers/net/igb/igb_main.c
index 39ac375487d..3fd2efa91cb 100644
--- a/drivers/net/igb/igb_main.c
+++ b/drivers/net/igb/igb_main.c
@@ -277,6 +277,17 @@ static char *igb_get_time_str(struct igb_adapter *adapter,
 }
 #endif
 
+/**
+ * igb_desc_unused - calculate if we have unused descriptors
+ **/
+static int igb_desc_unused(struct igb_ring *ring)
+{
+	if (ring->next_to_clean > ring->next_to_use)
+		return ring->next_to_clean - ring->next_to_use - 1;
+
+	return ring->count + ring->next_to_clean - ring->next_to_use - 1;
+}
+
 /**
  * igb_init_module - Driver Registration Routine
  *
@@ -873,12 +884,12 @@ static void igb_configure(struct igb_adapter *adapter)
 
 	igb_rx_fifo_flush_82575(&adapter->hw);
 
-	/* call IGB_DESC_UNUSED which always leaves
+	/* call igb_desc_unused which always leaves
 	 * at least 1 descriptor unused to make sure
 	 * next_to_use != next_to_clean */
 	for (i = 0; i < adapter->num_rx_queues; i++) {
 		struct igb_ring *ring = &adapter->rx_ring[i];
-		igb_alloc_rx_buffers_adv(ring, IGB_DESC_UNUSED(ring));
+		igb_alloc_rx_buffers_adv(ring, igb_desc_unused(ring));
 	}
 
 
@@ -2661,7 +2672,7 @@ link_up:
 	igb_update_adaptive(&adapter->hw);
 
 	if (!netif_carrier_ok(netdev)) {
-		if (IGB_DESC_UNUSED(tx_ring) + 1 < tx_ring->count) {
+		if (igb_desc_unused(tx_ring) + 1 < tx_ring->count) {
 			/* We've lost link, so the controller stops DMA,
 			 * but we've got queued Tx work that's never going
 			 * to get done, so reset controller to flush Tx.
@@ -3199,7 +3210,7 @@ static int __igb_maybe_stop_tx(struct net_device *netdev,
 
 	/* We need to check again in a case another CPU has just
 	 * made room available. */
-	if (IGB_DESC_UNUSED(tx_ring) < size)
+	if (igb_desc_unused(tx_ring) < size)
 		return -EBUSY;
 
 	/* A reprieve! */
@@ -3211,7 +3222,7 @@ static int __igb_maybe_stop_tx(struct net_device *netdev,
 static int igb_maybe_stop_tx(struct net_device *netdev,
 			     struct igb_ring *tx_ring, int size)
 {
-	if (IGB_DESC_UNUSED(tx_ring) >= size)
+	if (igb_desc_unused(tx_ring) >= size)
 		return 0;
 	return __igb_maybe_stop_tx(netdev, tx_ring, size);
 }
@@ -4310,7 +4321,7 @@ static bool igb_clean_tx_irq(struct igb_ring *tx_ring)
 
 	if (unlikely(count &&
 		     netif_carrier_ok(netdev) &&
-		     IGB_DESC_UNUSED(tx_ring) >= IGB_TX_QUEUE_WAKE)) {
+		     igb_desc_unused(tx_ring) >= IGB_TX_QUEUE_WAKE)) {
 		/* Make sure that anybody stopping the queue after this
 		 * sees the new next_to_clean.
 		 */
@@ -4587,7 +4598,7 @@ next_desc:
 	}
 
 	rx_ring->next_to_clean = i;
-	cleaned_count = IGB_DESC_UNUSED(rx_ring);
+	cleaned_count = igb_desc_unused(rx_ring);
 
 	if (cleaned_count)
 		igb_alloc_rx_buffers_adv(rx_ring, cleaned_count);
-- 
cgit v1.2.3-70-g09d2


From 0e340485725ea35ca4e354cce5df09e86e31e20d Mon Sep 17 00:00:00 2001
From: Alexander Duyck <alexander.h.duyck@intel.com>
Date: Fri, 20 Mar 2009 00:17:08 +0000
Subject: igb: update driver to use setup_timer function

igb was previously setting up all of the timer members itself.  It is
easier to just call setup_timer and reduce the calls to one line.

Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 drivers/net/igb/igb_main.c | 11 ++++-------
 1 file changed, 4 insertions(+), 7 deletions(-)

(limited to 'drivers/net/igb')

diff --git a/drivers/net/igb/igb_main.c b/drivers/net/igb/igb_main.c
index 3fd2efa91cb..4853a74843e 100644
--- a/drivers/net/igb/igb_main.c
+++ b/drivers/net/igb/igb_main.c
@@ -1312,13 +1312,10 @@ static int __devinit igb_probe(struct pci_dev *pdev,
 		goto err_eeprom;
 	}
 
-	init_timer(&adapter->watchdog_timer);
-	adapter->watchdog_timer.function = &igb_watchdog;
-	adapter->watchdog_timer.data = (unsigned long) adapter;
-
-	init_timer(&adapter->phy_info_timer);
-	adapter->phy_info_timer.function = &igb_update_phy_info;
-	adapter->phy_info_timer.data = (unsigned long) adapter;
+	setup_timer(&adapter->watchdog_timer, &igb_watchdog,
+	            (unsigned long) adapter);
+	setup_timer(&adapter->phy_info_timer, &igb_update_phy_info,
+	            (unsigned long) adapter);
 
 	INIT_WORK(&adapter->reset_task, igb_reset_task);
 	INIT_WORK(&adapter->watchdog_task, igb_watchdog_task);
-- 
cgit v1.2.3-70-g09d2


From c5cd11e380002d24fd4fd4c0fc38f59ab394e885 Mon Sep 17 00:00:00 2001
From: Alexander Duyck <alexander.h.duyck@intel.com>
Date: Fri, 20 Mar 2009 00:17:25 +0000
Subject: igb: rework igb_set_multi so that vfs are properly updated

Currently if there are no multicast addresses programmed into the PF then
the VFs cannot have their multicast filters reset.  This change makes it so
the code path that updates vf multicast is always called along with the pf
updates.

Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 drivers/net/igb/igb_main.c | 18 ++++++++----------
 1 file changed, 8 insertions(+), 10 deletions(-)

(limited to 'drivers/net/igb')

diff --git a/drivers/net/igb/igb_main.c b/drivers/net/igb/igb_main.c
index 4853a74843e..d6dda162116 100644
--- a/drivers/net/igb/igb_main.c
+++ b/drivers/net/igb/igb_main.c
@@ -2464,7 +2464,7 @@ static void igb_set_multi(struct net_device *netdev)
 	struct e1000_hw *hw = &adapter->hw;
 	struct e1000_mac_info *mac = &hw->mac;
 	struct dev_mc_list *mc_ptr;
-	u8  *mta_list;
+	u8  *mta_list = NULL;
 	u32 rctl;
 	int i;
 
@@ -2485,17 +2485,15 @@ static void igb_set_multi(struct net_device *netdev)
 	}
 	wr32(E1000_RCTL, rctl);
 
-	if (!netdev->mc_count) {
-		/* nothing to program, so clear mc list */
-		igb_update_mc_addr_list(hw, NULL, 0, 1,
-					mac->rar_entry_count);
-		return;
+	if (netdev->mc_count) {
+		mta_list = kzalloc(netdev->mc_count * 6, GFP_ATOMIC);
+		if (!mta_list) {
+			dev_err(&adapter->pdev->dev,
+			        "failed to allocate multicast filter list\n");
+			return;
+		}
 	}
 
-	mta_list = kzalloc(netdev->mc_count * 6, GFP_ATOMIC);
-	if (!mta_list)
-		return;
-
 	/* The shared function expects a packed array of only addresses. */
 	mc_ptr = netdev->mc_list;
 
-- 
cgit v1.2.3-70-g09d2


From 65689fef7e484631e996541a6772706627b0991a Mon Sep 17 00:00:00 2001
From: Alexander Duyck <alexander.h.duyck@intel.com>
Date: Fri, 20 Mar 2009 00:17:43 +0000
Subject: igb: cleanup tx dma so map & unmap use matching calls

The igb driver was using map_single to map the skbs and then unmap_page to
unmap them.  This update changes that so instead uses skb_dma_map and
skb_dma_unmap.

In addition the next_to_watch member of the buffer_info struct was being
set uneccesarily.  I removed the spots where it was set without being needed.

Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 drivers/net/igb/igb_main.c | 66 ++++++++++++++++++++++++----------------------
 1 file changed, 35 insertions(+), 31 deletions(-)

(limited to 'drivers/net/igb')

diff --git a/drivers/net/igb/igb_main.c b/drivers/net/igb/igb_main.c
index d6dda162116..ca842163dce 100644
--- a/drivers/net/igb/igb_main.c
+++ b/drivers/net/igb/igb_main.c
@@ -2257,19 +2257,14 @@ static void igb_free_all_tx_resources(struct igb_adapter *adapter)
 static void igb_unmap_and_free_tx_resource(struct igb_adapter *adapter,
 					   struct igb_buffer *buffer_info)
 {
-	if (buffer_info->dma) {
-		pci_unmap_page(adapter->pdev,
-				buffer_info->dma,
-				buffer_info->length,
-				PCI_DMA_TODEVICE);
-		buffer_info->dma = 0;
-	}
+	buffer_info->dma = 0;
 	if (buffer_info->skb) {
+		skb_dma_unmap(&adapter->pdev->dev, buffer_info->skb,
+		              DMA_TO_DEVICE);
 		dev_kfree_skb_any(buffer_info->skb);
 		buffer_info->skb = NULL;
 	}
 	buffer_info->time_stamp = 0;
-	buffer_info->next_to_watch = 0;
 	/* buffer_info must be completely set up in the transmit path */
 }
 
@@ -3078,25 +3073,33 @@ static inline int igb_tx_map_adv(struct igb_adapter *adapter,
 	unsigned int len = skb_headlen(skb);
 	unsigned int count = 0, i;
 	unsigned int f;
+	dma_addr_t *map;
 
 	i = tx_ring->next_to_use;
 
+	if (skb_dma_map(&adapter->pdev->dev, skb, DMA_TO_DEVICE)) {
+		dev_err(&adapter->pdev->dev, "TX DMA map failed\n");
+		return 0;
+	}
+
+	map = skb_shinfo(skb)->dma_maps;
+
 	buffer_info = &tx_ring->buffer_info[i];
 	BUG_ON(len >= IGB_MAX_DATA_PER_TXD);
 	buffer_info->length = len;
 	/* set time_stamp *before* dma to help avoid a possible race */
 	buffer_info->time_stamp = jiffies;
 	buffer_info->next_to_watch = i;
-	buffer_info->dma = pci_map_single(adapter->pdev, skb->data, len,
-					  PCI_DMA_TODEVICE);
+	buffer_info->dma = map[count];
 	count++;
-	i++;
-	if (i == tx_ring->count)
-		i = 0;
 
 	for (f = 0; f < skb_shinfo(skb)->nr_frags; f++) {
 		struct skb_frag_struct *frag;
 
+		i++;
+		if (i == tx_ring->count)
+			i = 0;
+
 		frag = &skb_shinfo(skb)->frags[f];
 		len = frag->size;
 
@@ -3105,19 +3108,10 @@ static inline int igb_tx_map_adv(struct igb_adapter *adapter,
 		buffer_info->length = len;
 		buffer_info->time_stamp = jiffies;
 		buffer_info->next_to_watch = i;
-		buffer_info->dma = pci_map_page(adapter->pdev,
-						frag->page,
-						frag->page_offset,
-						len,
-						PCI_DMA_TODEVICE);
-
+		buffer_info->dma = map[count];
 		count++;
-		i++;
-		if (i == tx_ring->count)
-			i = 0;
 	}
 
-	i = ((i == 0) ? tx_ring->count - 1 : i - 1);
 	tx_ring->buffer_info[i].skb = skb;
 	tx_ring->buffer_info[first].next_to_watch = i;
 
@@ -3230,6 +3224,7 @@ static int igb_xmit_frame_ring_adv(struct sk_buff *skb,
 	unsigned int first;
 	unsigned int tx_flags = 0;
 	u8 hdr_len = 0;
+	int count = 0;
 	int tso = 0;
 	union skb_shared_tx *shtx;
 
@@ -3291,14 +3286,23 @@ static int igb_xmit_frame_ring_adv(struct sk_buff *skb,
 	         (skb->ip_summed == CHECKSUM_PARTIAL))
 		tx_flags |= IGB_TX_FLAGS_CSUM;
 
-	igb_tx_queue_adv(adapter, tx_ring, tx_flags,
-			 igb_tx_map_adv(adapter, tx_ring, skb, first),
-			 skb->len, hdr_len);
-
-	netdev->trans_start = jiffies;
-
-	/* Make sure there is space in the ring for the next send. */
-	igb_maybe_stop_tx(netdev, tx_ring, MAX_SKB_FRAGS + 4);
+	/*
+	 * count reflects descriptors mapped, if 0 then mapping error
+	 * has occured and we need to rewind the descriptor queue
+	 */
+	count = igb_tx_map_adv(adapter, tx_ring, skb, first);
+
+	if (count) {
+		igb_tx_queue_adv(adapter, tx_ring, tx_flags, count,
+			         skb->len, hdr_len);
+		netdev->trans_start = jiffies;
+		/* Make sure there is space in the ring for the next send. */
+		igb_maybe_stop_tx(netdev, tx_ring, MAX_SKB_FRAGS + 4);
+	} else {
+		dev_kfree_skb_any(skb);
+		tx_ring->buffer_info[first].time_stamp = 0;
+		tx_ring->next_to_use = first;
+	}
 
 	return NETDEV_TX_OK;
 }
-- 
cgit v1.2.3-70-g09d2