Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/jkirsher/net-next

Jeff Kirsher says:

====================
Intel Wired LAN Driver Updates 2014-06-11

This series contains updates to igb, i40e and i40evf.

Todd makes a change to igb to un-hide invariant returns by getting rid of
the E1000_SUCCESS define and converting those returns to return 0.

Jacob separates the hardware logic from the set function, so that we can
re-use it during a ptp_reset in igb.  This enables the reset to return
functionality to the last know timestamp mode, rather than resetting the
value.

Ashish implements context flags for headwb and headwb_addr so that we
do not have to keep them always enabled.

Shannon updates the admin queue API for the new firmware, which adds
set_pf_content, nvm_config_read/write, replaces set_phy_reset with
set_phy_debug and removes nvm_read/write_reg_se.  Cleans up the driver
to use the stored base_queue value since there is no need to read the
PCI register for the PF's base queue on every single transmit queue
enable and disable as we already have the value stored from reading
the capability features at startup.

Anjali changes the notion of source and destination for FD_SB in ethtool
to align i40e with other drivers.  Adds flow director statistics to
the PF stats.  Fixes a bug in ethtool for flow director drop packet
filter where the drop action comes down as a ring_cookie value, so allow
it as a special value that can be used to configure destination control.

Mitch fixes the i40evf to keep the driver from going down when it is
already in a down state.  This prevents a CPU soft lock in napi_disable().
Also change the i40evf to check the admin queue error bits since the
firmware can indicate any admin queue error states to the driver via
some bits in the length registers.

Neerav separates out the DCB capability and enabled flags because currently
if the firmware reports DCB capability the driver enables
I40E_FLAG_DCB_ENABLED flag.  When this flag is enabled the driver inserts
a tag when transmitting a packet from the port even if there are no DCB
traffic classes configured at the port.  So by adding the additional flag,
I40E_FLAG_DCB_CAPABLE, that will be set when the DCB capability is present
and the existing enabled flag will only be set if there are more than one
traffic classes configured at the port.

Greg fixes the i40e driver to not automatically accept tagged packets by
default so that the system must request a VLAN tag packet filter to get
packets with that tag.  Greg also converts i40e to use the in-kernel
ether_addr_copy() instead of mempcy().

Jesse removes the FTYPE field from the receive descriptor to match the
hardware implementation.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>

4 files changed, 135 insertions, 29 deletions

diff --git a/drivers/net/ethernet/intel/i40evf/i40e_adminq_cmd.h b/drivers/net/ethernet/intel/i40evf/i40e_adminq_cmd.h
index 89d9209ff2b..e656ea7a792 100644
--- a/drivers/net/ethernet/intel/i40evf/i40e_adminq_cmd.h
+++ b/drivers/net/ethernet/intel/i40evf/i40e_adminq_cmd.h
@@ -34,7 +34,7 @@
  */
 
 #define I40E_FW_API_VERSION_MAJOR  0x0001
-#define I40E_FW_API_VERSION_MINOR  0x0001
+#define I40E_FW_API_VERSION_MINOR  0x0002
 #define I40E_FW_API_VERSION_A0_MINOR  0x0000
 
 struct i40e_aq_desc {
@@ -124,6 +124,7 @@ enum i40e_admin_queue_opc {
 	i40e_aqc_opc_get_version      = 0x0001,
 	i40e_aqc_opc_driver_version   = 0x0002,
 	i40e_aqc_opc_queue_shutdown   = 0x0003,
+	i40e_aqc_opc_set_pf_context   = 0x0004,
 
 	/* resource ownership */
 	i40e_aqc_opc_request_resource = 0x0008,
@@ -223,13 +224,15 @@ enum i40e_admin_queue_opc {
 	i40e_aqc_opc_get_partner_advt    = 0x0616,
 	i40e_aqc_opc_set_lb_modes        = 0x0618,
 	i40e_aqc_opc_get_phy_wol_caps    = 0x0621,
-	i40e_aqc_opc_set_phy_reset       = 0x0622,
+	i40e_aqc_opc_set_phy_debug	 = 0x0622,
 	i40e_aqc_opc_upload_ext_phy_fm   = 0x0625,
 
 	/* NVM commands */
-	i40e_aqc_opc_nvm_read   = 0x0701,
-	i40e_aqc_opc_nvm_erase  = 0x0702,
-	i40e_aqc_opc_nvm_update = 0x0703,
+	i40e_aqc_opc_nvm_read         = 0x0701,
+	i40e_aqc_opc_nvm_erase        = 0x0702,
+	i40e_aqc_opc_nvm_update       = 0x0703,
+	i40e_aqc_opc_nvm_config_read  = 0x0704,
+	i40e_aqc_opc_nvm_config_write = 0x0705,
 
 	/* virtualization commands */
 	i40e_aqc_opc_send_msg_to_pf   = 0x0801,
@@ -271,8 +274,6 @@ enum i40e_admin_queue_opc {
 	i40e_aqc_opc_debug_set_mode         = 0xFF01,
 	i40e_aqc_opc_debug_read_reg         = 0xFF03,
 	i40e_aqc_opc_debug_write_reg        = 0xFF04,
-	i40e_aqc_opc_debug_read_reg_sg      = 0xFF05,
-	i40e_aqc_opc_debug_write_reg_sg     = 0xFF06,
 	i40e_aqc_opc_debug_modify_reg       = 0xFF07,
 	i40e_aqc_opc_debug_dump_internals   = 0xFF08,
 	i40e_aqc_opc_debug_modify_internals = 0xFF09,
@@ -340,6 +341,14 @@ struct i40e_aqc_queue_shutdown {
 
 I40E_CHECK_CMD_LENGTH(i40e_aqc_queue_shutdown);
 
+/* Set PF context (0x0004, direct) */
+struct i40e_aqc_set_pf_context {
+	u8	pf_id;
+	u8	reserved[15];
+};
+
+I40E_CHECK_CMD_LENGTH(i40e_aqc_set_pf_context);
+
 /* Request resource ownership (direct 0x0008)
  * Release resource ownership (direct 0x0009)
  */
@@ -1408,11 +1417,12 @@ I40E_CHECK_CMD_LENGTH(i40e_aqc_configure_switching_comp_bw_limit);
 struct i40e_aqc_configure_switching_comp_ets_data {
 	u8     reserved[4];
 	u8     tc_valid_bits;
-	u8     reserved1;
+	u8     seepage;
+#define I40E_AQ_ETS_SEEPAGE_EN_MASK     0x1
 	u8     tc_strict_priority_flags;
-	u8     reserved2[17];
+	u8     reserved1[17];
 	u8     tc_bw_share_credits[8];
-	u8     reserved3[96];
+	u8     reserved2[96];
 };
 
 /* Configure Switching Component Bandwidth Limits per Tc (indirect 0x0416) */
@@ -1529,6 +1539,8 @@ enum i40e_aq_phy_type {
 	I40E_PHY_TYPE_XLPPI			= 0x9,
 	I40E_PHY_TYPE_40GBASE_CR4_CU		= 0xA,
 	I40E_PHY_TYPE_10GBASE_CR1_CU		= 0xB,
+	I40E_PHY_TYPE_10GBASE_AOC		= 0xC,
+	I40E_PHY_TYPE_40GBASE_AOC		= 0xD,
 	I40E_PHY_TYPE_100BASE_TX		= 0x11,
 	I40E_PHY_TYPE_1000BASE_T		= 0x12,
 	I40E_PHY_TYPE_10GBASE_T			= 0x13,
@@ -1539,7 +1551,10 @@ enum i40e_aq_phy_type {
 	I40E_PHY_TYPE_40GBASE_CR4		= 0x18,
 	I40E_PHY_TYPE_40GBASE_SR4		= 0x19,
 	I40E_PHY_TYPE_40GBASE_LR4		= 0x1A,
-	I40E_PHY_TYPE_20GBASE_KR2		= 0x1B,
+	I40E_PHY_TYPE_1000BASE_SX		= 0x1B,
+	I40E_PHY_TYPE_1000BASE_LX		= 0x1C,
+	I40E_PHY_TYPE_1000BASE_T_OPTICAL	= 0x1D,
+	I40E_PHY_TYPE_20GBASE_KR2		= 0x1E,
 	I40E_PHY_TYPE_MAX
 };
 
@@ -1683,6 +1698,7 @@ struct i40e_aqc_get_link_status {
 #define I40E_AQ_LINK_TX_ACTIVE       0x00
 #define I40E_AQ_LINK_TX_DRAINED      0x01
 #define I40E_AQ_LINK_TX_FLUSHED      0x03
+#define I40E_AQ_LINK_FORCED_40G      0x10
 	u8     loopback;         /* use defines from i40e_aqc_set_lb_mode */
 	__le16 max_frame_size;
 	u8     config;
@@ -1734,14 +1750,21 @@ struct i40e_aqc_set_lb_mode {
 
 I40E_CHECK_CMD_LENGTH(i40e_aqc_set_lb_mode);
 
-/* Set PHY Reset command (0x0622) */
-struct i40e_aqc_set_phy_reset {
-	u8     reset_flags;
-#define I40E_AQ_PHY_RESET_REQUEST  0x02
+/* Set PHY Debug command (0x0622) */
+struct i40e_aqc_set_phy_debug {
+	u8     command_flags;
+#define I40E_AQ_PHY_DEBUG_RESET_INTERNAL	0x02
+#define I40E_AQ_PHY_DEBUG_RESET_EXTERNAL_SHIFT	2
+#define I40E_AQ_PHY_DEBUG_RESET_EXTERNAL_MASK	(0x03 << \
+					I40E_AQ_PHY_DEBUG_RESET_EXTERNAL_SHIFT)
+#define I40E_AQ_PHY_DEBUG_RESET_EXTERNAL_NONE	0x00
+#define I40E_AQ_PHY_DEBUG_RESET_EXTERNAL_HARD	0x01
+#define I40E_AQ_PHY_DEBUG_RESET_EXTERNAL_SOFT	0x02
+#define I40E_AQ_PHY_DEBUG_DISABLE_LINK_FW	0x10
 	u8     reserved[15];
 };
 
-I40E_CHECK_CMD_LENGTH(i40e_aqc_set_phy_reset);
+I40E_CHECK_CMD_LENGTH(i40e_aqc_set_phy_debug);
 
 enum i40e_aq_phy_reg_type {
 	I40E_AQC_PHY_REG_INTERNAL         = 0x1,
@@ -1766,6 +1789,47 @@ struct i40e_aqc_nvm_update {
 
 I40E_CHECK_CMD_LENGTH(i40e_aqc_nvm_update);
 
+/* NVM Config Read (indirect 0x0704) */
+struct i40e_aqc_nvm_config_read {
+	__le16 cmd_flags;
+#define ANVM_SINGLE_OR_MULTIPLE_FEATURES_MASK	1
+#define ANVM_READ_SINGLE_FEATURE		0
+#define ANVM_READ_MULTIPLE_FEATURES		1
+	__le16 element_count;
+	__le16 element_id;		/* Feature/field ID */
+	u8     reserved[2];
+	__le32 address_high;
+	__le32 address_low;
+};
+
+I40E_CHECK_CMD_LENGTH(i40e_aqc_nvm_config_read);
+
+/* NVM Config Write (indirect 0x0705) */
+struct i40e_aqc_nvm_config_write {
+	__le16 cmd_flags;
+	__le16 element_count;
+	u8     reserved[4];
+	__le32 address_high;
+	__le32 address_low;
+};
+
+I40E_CHECK_CMD_LENGTH(i40e_aqc_nvm_config_write);
+
+struct i40e_aqc_nvm_config_data_feature {
+	__le16 feature_id;
+	__le16 instance_id;
+	__le16 feature_options;
+	__le16 feature_selection;
+};
+
+struct i40e_aqc_nvm_config_data_immediate_field {
+#define ANVM_FEATURE_OR_IMMEDIATE_MASK	0x2
+	__le16 field_id;
+	__le16 instance_id;
+	__le16 field_options;
+	__le16 field_value;
+};
+
 /* Send to PF command (indirect 0x0801) id is only used by PF
  * Send to VF command (indirect 0x0802) id is only used by PF
  * Send to Peer PF command (indirect 0x0803)
diff --git a/drivers/net/ethernet/intel/i40evf/i40e_type.h b/drivers/net/ethernet/intel/i40evf/i40e_type.h
index 0a7914d11b6..d3cf5a69de5 100644
--- a/drivers/net/ethernet/intel/i40evf/i40e_type.h
+++ b/drivers/net/ethernet/intel/i40evf/i40e_type.h
@@ -663,7 +663,6 @@ enum i40e_rx_desc_ext_status_bits {
 	I40E_RX_DESC_EXT_STATUS_L2TAG3P_SHIFT	= 1,
 	I40E_RX_DESC_EXT_STATUS_FLEXBL_SHIFT	= 2, /* 2 BITS */
 	I40E_RX_DESC_EXT_STATUS_FLEXBH_SHIFT	= 4, /* 2 BITS */
-	I40E_RX_DESC_EXT_STATUS_FTYPE_SHIFT	= 6, /* 3 BITS */
 	I40E_RX_DESC_EXT_STATUS_FDLONGB_SHIFT	= 9,
 	I40E_RX_DESC_EXT_STATUS_FCOELONGB_SHIFT	= 10,
 	I40E_RX_DESC_EXT_STATUS_PELONGB_SHIFT	= 11,
@@ -1024,6 +1023,9 @@ struct i40e_hw_port_stats {
 	u64 tx_size_big;		/* ptc9522 */
 	u64 mac_short_packet_dropped;	/* mspdc */
 	u64 checksum_error;		/* xec */
+	/* flow director stats */
+	u64 fd_atr_match;
+	u64 fd_sb_match;
 	/* EEE LPI */
 	u32 tx_lpi_status;
 	u32 rx_lpi_status;
diff --git a/drivers/net/ethernet/intel/i40evf/i40evf_main.c b/drivers/net/ethernet/intel/i40evf/i40evf_main.c
index d4157857360..7fc5f3b5d6b 100644
--- a/drivers/net/ethernet/intel/i40evf/i40evf_main.c
+++ b/drivers/net/ethernet/intel/i40evf/i40evf_main.c
@@ -36,7 +36,7 @@ char i40evf_driver_name[] = "i40evf";
 static const char i40evf_driver_string[] =
 	"Intel(R) XL710 X710 Virtual Function Network Driver";
 
-#define DRV_VERSION "0.9.31"
+#define DRV_VERSION "0.9.34"
 const char i40evf_driver_version[] = DRV_VERSION;
 static const char i40evf_copyright[] =
 	"Copyright (c) 2013 - 2014 Intel Corporation.";
@@ -772,7 +772,7 @@ i40evf_mac_filter *i40evf_add_filter(struct i40evf_adapter *adapter,
 			return NULL;
 		}
 
-		memcpy(f->macaddr, macaddr, ETH_ALEN);
+		ether_addr_copy(f->macaddr, macaddr);
 
 		list_add(&f->list, &adapter->mac_filter_list);
 		f->add = true;
@@ -805,9 +805,8 @@ static int i40evf_set_mac(struct net_device *netdev, void *p)
 
 	f = i40evf_add_filter(adapter, addr->sa_data);
 	if (f) {
-		memcpy(hw->mac.addr, addr->sa_data, netdev->addr_len);
-		memcpy(netdev->dev_addr, adapter->hw.mac.addr,
-		       netdev->addr_len);
+		ether_addr_copy(hw->mac.addr, addr->sa_data);
+		ether_addr_copy(netdev->dev_addr, adapter->hw.mac.addr);
 	}
 
 	return (f == NULL) ? -ENOMEM : 0;
@@ -968,6 +967,9 @@ void i40evf_down(struct i40evf_adapter *adapter)
 	struct net_device *netdev = adapter->netdev;
 	struct i40evf_mac_filter *f;
 
+	if (adapter->state == __I40EVF_DOWN)
+		return;
+
 	/* remove all MAC filters */
 	list_for_each_entry(f, &adapter->mac_filter_list, list) {
 		f->remove = true;
@@ -1588,6 +1590,7 @@ static void i40evf_adminq_task(struct work_struct *work)
 	struct i40e_arq_event_info event;
 	struct i40e_virtchnl_msg *v_msg;
 	i40e_status ret;
+	u32 val, oldval;
 	u16 pending;
 
 	if (adapter->flags & I40EVF_FLAG_PF_COMMS_FAILED)
@@ -1615,6 +1618,41 @@ static void i40evf_adminq_task(struct work_struct *work)
 		}
 	} while (pending);
 
+	/* check for error indications */
+	val = rd32(hw, hw->aq.arq.len);
+	oldval = val;
+	if (val & I40E_VF_ARQLEN_ARQVFE_MASK) {
+		dev_info(&adapter->pdev->dev, "ARQ VF Error detected\n");
+		val &= ~I40E_VF_ARQLEN_ARQVFE_MASK;
+	}
+	if (val & I40E_VF_ARQLEN_ARQOVFL_MASK) {
+		dev_info(&adapter->pdev->dev, "ARQ Overflow Error detected\n");
+		val &= ~I40E_VF_ARQLEN_ARQOVFL_MASK;
+	}
+	if (val & I40E_VF_ARQLEN_ARQCRIT_MASK) {
+		dev_info(&adapter->pdev->dev, "ARQ Critical Error detected\n");
+		val &= ~I40E_VF_ARQLEN_ARQCRIT_MASK;
+	}
+	if (oldval != val)
+		wr32(hw, hw->aq.arq.len, val);
+
+	val = rd32(hw, hw->aq.asq.len);
+	oldval = val;
+	if (val & I40E_VF_ATQLEN_ATQVFE_MASK) {
+		dev_info(&adapter->pdev->dev, "ASQ VF Error detected\n");
+		val &= ~I40E_VF_ATQLEN_ATQVFE_MASK;
+	}
+	if (val & I40E_VF_ATQLEN_ATQOVFL_MASK) {
+		dev_info(&adapter->pdev->dev, "ASQ Overflow Error detected\n");
+		val &= ~I40E_VF_ATQLEN_ATQOVFL_MASK;
+	}
+	if (val & I40E_VF_ATQLEN_ATQCRIT_MASK) {
+		dev_info(&adapter->pdev->dev, "ASQ Critical Error detected\n");
+		val &= ~I40E_VF_ATQLEN_ATQCRIT_MASK;
+	}
+	if (oldval != val)
+		wr32(hw, hw->aq.asq.len, val);
+
 	/* re-enable Admin queue interrupt cause */
 	i40evf_misc_irq_enable(adapter);
 
@@ -1785,12 +1823,11 @@ static int i40evf_close(struct net_device *netdev)
 	if (adapter->state <= __I40EVF_DOWN)
 		return 0;
 
-	/* signal that we are down to the interrupt handler */
-	adapter->state = __I40EVF_DOWN;
 
 	set_bit(__I40E_DOWN, &adapter->vsi.state);
 
 	i40evf_down(adapter);
+	adapter->state = __I40EVF_DOWN;
 	i40evf_free_traffic_irqs(adapter);
 
 	i40evf_free_all_tx_resources(adapter);
@@ -2057,8 +2094,8 @@ static void i40evf_init_task(struct work_struct *work)
 			 adapter->hw.mac.addr);
 		random_ether_addr(adapter->hw.mac.addr);
 	}
-	memcpy(netdev->dev_addr, adapter->hw.mac.addr, netdev->addr_len);
-	memcpy(netdev->perm_addr, adapter->hw.mac.addr, netdev->addr_len);
+	ether_addr_copy(netdev->dev_addr, adapter->hw.mac.addr);
+	ether_addr_copy(netdev->perm_addr, adapter->hw.mac.addr);
 
 	INIT_LIST_HEAD(&adapter->mac_filter_list);
 	INIT_LIST_HEAD(&adapter->vlan_filter_list);
@@ -2066,7 +2103,7 @@ static void i40evf_init_task(struct work_struct *work)
 	if (NULL == f)
 		goto err_sw_init;
 
-	memcpy(f->macaddr, adapter->hw.mac.addr, ETH_ALEN);
+	ether_addr_copy(f->macaddr, adapter->hw.mac.addr);
 	f->add = true;
 	adapter->aq_required |= I40EVF_FLAG_AQ_ADD_MAC_FILTER;
 
diff --git a/drivers/net/ethernet/intel/i40evf/i40evf_virtchnl.c b/drivers/net/ethernet/intel/i40evf/i40evf_virtchnl.c
index cd414dac755..2dc0bac7671 100644
--- a/drivers/net/ethernet/intel/i40evf/i40evf_virtchnl.c
+++ b/drivers/net/ethernet/intel/i40evf/i40evf_virtchnl.c
@@ -233,6 +233,9 @@ void i40evf_configure_queues(struct i40evf_adapter *adapter)
 		vqpi->txq.queue_id = i;
 		vqpi->txq.ring_len = adapter->tx_rings[i]->count;
 		vqpi->txq.dma_ring_addr = adapter->tx_rings[i]->dma;
+		vqpi->txq.headwb_enabled = 1;
+		vqpi->txq.dma_headwb_addr = vqpi->txq.dma_ring_addr +
+		    (vqpi->txq.ring_len * sizeof(struct i40e_tx_desc));
 
 		vqpi->rxq.vsi_id = vqci->vsi_id;
 		vqpi->rxq.queue_id = i;
@@ -404,7 +407,7 @@ void i40evf_add_ether_addrs(struct i40evf_adapter *adapter)
 	veal->num_elements = count;
 	list_for_each_entry(f, &adapter->mac_filter_list, list) {
 		if (f->add) {
-			memcpy(veal->list[i].addr, f->macaddr, ETH_ALEN);
+			ether_addr_copy(veal->list[i].addr, f->macaddr);
 			i++;
 			f->add = false;
 		}
@@ -465,7 +468,7 @@ void i40evf_del_ether_addrs(struct i40evf_adapter *adapter)
 	veal->num_elements = count;
 	list_for_each_entry_safe(f, ftmp, &adapter->mac_filter_list, list) {
 		if (f->remove) {
-			memcpy(veal->list[i].addr, f->macaddr, ETH_ALEN);
+			ether_addr_copy(veal->list[i].addr, f->macaddr);
 			i++;
 			list_del(&f->list);
 			kfree(f);