Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next

* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next: (1287 commits)
  icmp: Fix regression in nexthop resolution during replies.
  net: Fix ppc64 BPF JIT dependencies.
  acenic: include NET_SKB_PAD headroom to incoming skbs
  ixgbe: convert to ndo_fix_features
  ixgbe: only enable WoL for magic packet by default
  ixgbe: remove ifdef check for non-existent define
  ixgbe: Pass staterr instead of re-reading status and error bits from descriptor
  ixgbe: Move interrupt related values out of ring and into q_vector
  ixgbe: add structure for containing RX/TX rings to q_vector
  ixgbe: inline the ixgbe_maybe_stop_tx function
  ixgbe: Update ATR to use recorded TX queues instead of CPU for routing
  igb: Fix for DH89xxCC near end loopback test
  e1000: always call e1000_check_for_link() on e1000_ce4100 MACs.
  netxen: add fw version compatibility check
  be2net: request native mode each time the card is reset
  ipv4: Constrain UFO fragment sizes to multiples of 8 bytes
  virtio_net: Fix panic in virtnet_remove
  ipv6: make fragment identifications less predictable
  ipv6: unshare inetpeers
  can: make function can_get_bittiming static
  ...

5 files changed, 88 insertions, 26 deletions

diff --git a/drivers/net/netxen/netxen_nic.h b/drivers/net/netxen/netxen_nic.h
index 77220687b92..f744d291218 100644
--- a/drivers/net/netxen/netxen_nic.h
+++ b/drivers/net/netxen/netxen_nic.h
@@ -53,8 +53,8 @@
 
 #define _NETXEN_NIC_LINUX_MAJOR 4
 #define _NETXEN_NIC_LINUX_MINOR 0
-#define _NETXEN_NIC_LINUX_SUBVERSION 75
-#define NETXEN_NIC_LINUX_VERSIONID  "4.0.75"
+#define _NETXEN_NIC_LINUX_SUBVERSION 76
+#define NETXEN_NIC_LINUX_VERSIONID  "4.0.76"
 
 #define NETXEN_VERSION_CODE(a, b, c)	(((a) << 24) + ((b) << 16) + (c))
 #define _major(v)	(((v) >> 24) & 0xff)
@@ -1302,6 +1302,7 @@ int netxen_nic_wol_supported(struct netxen_adapter *adapter);
 int netxen_init_dummy_dma(struct netxen_adapter *adapter);
 void netxen_free_dummy_dma(struct netxen_adapter *adapter);
 
+int netxen_check_flash_fw_compatibility(struct netxen_adapter *adapter);
 int netxen_phantom_init(struct netxen_adapter *adapter, int pegtune_val);
 int netxen_load_firmware(struct netxen_adapter *adapter);
 int netxen_need_fw_reset(struct netxen_adapter *adapter);
diff --git a/drivers/net/netxen/netxen_nic_ctx.c b/drivers/net/netxen/netxen_nic_ctx.c
index f16966afa64..a925392abd6 100644
--- a/drivers/net/netxen/netxen_nic_ctx.c
+++ b/drivers/net/netxen/netxen_nic_ctx.c
@@ -163,7 +163,7 @@ nx_fw_cmd_create_rx_ctx(struct netxen_adapter *adapter)
 				rq_size, &hostrq_phys_addr);
 	if (addr == NULL)
 		return -ENOMEM;
-	prq = (nx_hostrq_rx_ctx_t *)addr;
+	prq = addr;
 
 	addr = pci_alloc_consistent(adapter->pdev,
 			rsp_size, &cardrsp_phys_addr);
@@ -171,7 +171,7 @@ nx_fw_cmd_create_rx_ctx(struct netxen_adapter *adapter)
 		err = -ENOMEM;
 		goto out_free_rq;
 	}
-	prsp = (nx_cardrsp_rx_ctx_t *)addr;
+	prsp = addr;
 
 	prq->host_rsp_dma_addr = cpu_to_le64(cardrsp_phys_addr);
 
@@ -318,10 +318,10 @@ nx_fw_cmd_create_tx_ctx(struct netxen_adapter *adapter)
 	}
 
 	memset(rq_addr, 0, rq_size);
-	prq = (nx_hostrq_tx_ctx_t *)rq_addr;
+	prq = rq_addr;
 
 	memset(rsp_addr, 0, rsp_size);
-	prsp = (nx_cardrsp_tx_ctx_t *)rsp_addr;
+	prsp = rsp_addr;
 
 	prq->host_rsp_dma_addr = cpu_to_le64(rsp_phys_addr);
 
@@ -629,7 +629,7 @@ int netxen_alloc_hw_resources(struct netxen_adapter *adapter)
 	}
 
 	memset(addr, 0, sizeof(struct netxen_ring_ctx));
-	recv_ctx->hwctx = (struct netxen_ring_ctx *)addr;
+	recv_ctx->hwctx = addr;
 	recv_ctx->hwctx->ctx_id = cpu_to_le32(port);
 	recv_ctx->hwctx->cmd_consumer_offset =
 		cpu_to_le64(recv_ctx->phys_addr +
@@ -648,7 +648,7 @@ int netxen_alloc_hw_resources(struct netxen_adapter *adapter)
 		goto err_out_free;
 	}
 
-	tx_ring->desc_head = (struct cmd_desc_type0 *)addr;
+	tx_ring->desc_head = addr;
 
 	for (ring = 0; ring < adapter->max_rds_rings; ring++) {
 		rds_ring = &recv_ctx->rds_rings[ring];
@@ -662,7 +662,7 @@ int netxen_alloc_hw_resources(struct netxen_adapter *adapter)
 			err = -ENOMEM;
 			goto err_out_free;
 		}
-		rds_ring->desc_head = (struct rcv_desc *)addr;
+		rds_ring->desc_head = addr;
 
 		if (NX_IS_REVISION_P2(adapter->ahw.revision_id))
 			rds_ring->crb_rcv_producer =
@@ -683,7 +683,7 @@ int netxen_alloc_hw_resources(struct netxen_adapter *adapter)
 			err = -ENOMEM;
 			goto err_out_free;
 		}
-		sds_ring->desc_head = (struct status_desc *)addr;
+		sds_ring->desc_head = addr;
 
 		if (NX_IS_REVISION_P2(adapter->ahw.revision_id)) {
 			sds_ring->crb_sts_consumer =
diff --git a/drivers/net/netxen/netxen_nic_hw.c b/drivers/net/netxen/netxen_nic_hw.c
index 5cef718fe35..3f89e57cae5 100644
--- a/drivers/net/netxen/netxen_nic_hw.c
+++ b/drivers/net/netxen/netxen_nic_hw.c
@@ -809,6 +809,9 @@ int netxen_config_hw_lro(struct netxen_adapter *adapter, int enable)
 	u64 word;
 	int rv = 0;
 
+	if (!test_bit(__NX_FW_ATTACHED, &adapter->state))
+		return 0;
+
 	memset(&req, 0, sizeof(nx_nic_req_t));
 
 	req.qhdr = cpu_to_le64(NX_HOST_REQUEST << 23);
@@ -959,6 +962,9 @@ int netxen_send_lro_cleanup(struct netxen_adapter *adapter)
 	u64 word;
 	int rv;
 
+	if (!test_bit(__NX_FW_ATTACHED, &adapter->state))
+		return 0;
+
 	memset(&req, 0, sizeof(nx_nic_req_t));
 	req.qhdr = cpu_to_le64(NX_HOST_REQUEST << 23);
 
diff --git a/drivers/net/netxen/netxen_nic_init.c b/drivers/net/netxen/netxen_nic_init.c
index 7f999671c7b..e8993a76a08 100644
--- a/drivers/net/netxen/netxen_nic_init.c
+++ b/drivers/net/netxen/netxen_nic_init.c
@@ -964,6 +964,35 @@ netxen_need_fw_reset(struct netxen_adapter *adapter)
 	return 0;
 }
 
+#define NETXEN_MIN_P3_FW_SUPP	NETXEN_VERSION_CODE(4, 0, 505)
+
+int
+netxen_check_flash_fw_compatibility(struct netxen_adapter *adapter)
+{
+	u32 flash_fw_ver, min_fw_ver;
+
+	if (NX_IS_REVISION_P2(adapter->ahw.revision_id))
+		return 0;
+
+	if (netxen_rom_fast_read(adapter,
+			NX_FW_VERSION_OFFSET, (int *)&flash_fw_ver)) {
+		dev_err(&adapter->pdev->dev, "Unable to read flash fw"
+			"version\n");
+		return -EIO;
+	}
+
+	flash_fw_ver = NETXEN_DECODE_VERSION(flash_fw_ver);
+	min_fw_ver = NETXEN_MIN_P3_FW_SUPP;
+	if (flash_fw_ver >= min_fw_ver)
+		return 0;
+
+	dev_info(&adapter->pdev->dev, "Flash fw[%d.%d.%d] is < min fw supported"
+		"[4.0.505]. Please update firmware on flash\n",
+		_major(flash_fw_ver), _minor(flash_fw_ver),
+		_build(flash_fw_ver));
+	return -EINVAL;
+}
+
 static char *fw_name[] = {
 	NX_P2_MN_ROMIMAGE_NAME,
 	NX_P3_CT_ROMIMAGE_NAME,
@@ -1071,10 +1100,12 @@ static int
 netxen_validate_firmware(struct netxen_adapter *adapter)
 {
 	__le32 val;
-	u32 ver, min_ver, bios;
+	__le32 flash_fw_ver;
+	u32 file_fw_ver, min_ver, bios;
 	struct pci_dev *pdev = adapter->pdev;
 	const struct firmware *fw = adapter->fw;
 	u8 fw_type = adapter->fw_type;
+	u32 crbinit_fix_fw;
 
 	if (fw_type == NX_UNIFIED_ROMIMAGE) {
 		if (netxen_nic_validate_unified_romimage(adapter))
@@ -1091,16 +1122,18 @@ netxen_validate_firmware(struct netxen_adapter *adapter)
 	val = nx_get_fw_version(adapter);
 
 	if (NX_IS_REVISION_P3(adapter->ahw.revision_id))
-		min_ver = NETXEN_VERSION_CODE(4, 0, 216);
+		min_ver = NETXEN_MIN_P3_FW_SUPP;
 	else
 		min_ver = NETXEN_VERSION_CODE(3, 4, 216);
 
-	ver = NETXEN_DECODE_VERSION(val);
+	file_fw_ver = NETXEN_DECODE_VERSION(val);
 
-	if ((_major(ver) > _NETXEN_NIC_LINUX_MAJOR) || (ver < min_ver)) {
+	if ((_major(file_fw_ver) > _NETXEN_NIC_LINUX_MAJOR) ||
+	    (file_fw_ver < min_ver)) {
 		dev_err(&pdev->dev,
 				"%s: firmware version %d.%d.%d unsupported\n",
-		fw_name[fw_type], _major(ver), _minor(ver), _build(ver));
+		fw_name[fw_type], _major(file_fw_ver), _minor(file_fw_ver),
+		 _build(file_fw_ver));
 		return -EINVAL;
 	}
 
@@ -1112,17 +1145,34 @@ netxen_validate_firmware(struct netxen_adapter *adapter)
 		return -EINVAL;
 	}
 
-	/* check if flashed firmware is newer */
 	if (netxen_rom_fast_read(adapter,
-			NX_FW_VERSION_OFFSET, (int *)&val))
+			NX_FW_VERSION_OFFSET, (int *)&flash_fw_ver)) {
+		dev_err(&pdev->dev, "Unable to read flash fw version\n");
 		return -EIO;
-	val = NETXEN_DECODE_VERSION(val);
-	if (val > ver) {
-		dev_info(&pdev->dev, "%s: firmware is older than flash\n",
-				fw_name[fw_type]);
+	}
+	flash_fw_ver = NETXEN_DECODE_VERSION(flash_fw_ver);
+
+	/* New fw from file is not allowed, if fw on flash is < 4.0.554 */
+	crbinit_fix_fw = NETXEN_VERSION_CODE(4, 0, 554);
+	if (file_fw_ver >= crbinit_fix_fw && flash_fw_ver < crbinit_fix_fw &&
+	    NX_IS_REVISION_P3(adapter->ahw.revision_id)) {
+		dev_err(&pdev->dev, "Incompatibility detected between driver "
+			"and firmware version on flash. This configuration "
+			"is not recommended. Please update the firmware on "
+			"flash immediately\n");
 		return -EINVAL;
 	}
 
+	/* check if flashed firmware is newer only for no-mn and P2 case*/
+	if (!netxen_p3_has_mn(adapter) ||
+	    NX_IS_REVISION_P2(adapter->ahw.revision_id)) {
+		if (flash_fw_ver > file_fw_ver) {
+			dev_info(&pdev->dev, "%s: firmware is older than flash\n",
+				fw_name[fw_type]);
+			return -EINVAL;
+		}
+	}
+
 	NXWR32(adapter, NETXEN_CAM_RAM(0x1fc), NETXEN_BDINFO_MAGIC);
 	return 0;
 }
@@ -1279,7 +1329,7 @@ void netxen_free_dummy_dma(struct netxen_adapter *adapter)
 
 			if (--i == 0)
 				break;
-		};
+		}
 	}
 
 	if (i) {
diff --git a/drivers/net/netxen/netxen_nic_main.c b/drivers/net/netxen/netxen_nic_main.c
index c0788a31ff0..f574edff7fc 100644
--- a/drivers/net/netxen/netxen_nic_main.c
+++ b/drivers/net/netxen/netxen_nic_main.c
@@ -92,7 +92,8 @@ static irqreturn_t netxen_msi_intr(int irq, void *data);
 static irqreturn_t netxen_msix_intr(int irq, void *data);
 
 static void netxen_config_indev_addr(struct net_device *dev, unsigned long);
-static struct net_device_stats *netxen_nic_get_stats(struct net_device *netdev);
+static struct rtnl_link_stats64 *netxen_nic_get_stats(struct net_device *dev,
+						      struct rtnl_link_stats64 *stats);
 static int netxen_nic_set_mac(struct net_device *netdev, void *p);
 
 /*  PCI Device ID Table  */
@@ -520,7 +521,7 @@ static const struct net_device_ops netxen_netdev_ops = {
 	.ndo_open	   = netxen_nic_open,
 	.ndo_stop	   = netxen_nic_close,
 	.ndo_start_xmit    = netxen_nic_xmit_frame,
-	.ndo_get_stats	   = netxen_nic_get_stats,
+	.ndo_get_stats64   = netxen_nic_get_stats,
 	.ndo_validate_addr = eth_validate_addr,
 	.ndo_set_multicast_list = netxen_set_multicast_list,
 	.ndo_set_mac_address    = netxen_nic_set_mac,
@@ -1387,6 +1388,10 @@ netxen_nic_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
 		break;
 	}
 
+	err = netxen_check_flash_fw_compatibility(adapter);
+	if (err)
+		goto err_out_iounmap;
+
 	if (adapter->portnum == 0) {
 		val = NXRD32(adapter, NX_CRB_DEV_REF_COUNT);
 		if (val != 0xffffffff && val != 0) {
@@ -2110,10 +2115,10 @@ request_reset:
 	clear_bit(__NX_RESETTING, &adapter->state);
 }
 
-static struct net_device_stats *netxen_nic_get_stats(struct net_device *netdev)
+static struct rtnl_link_stats64 *netxen_nic_get_stats(struct net_device *netdev,
+						      struct rtnl_link_stats64 *stats)
 {
 	struct netxen_adapter *adapter = netdev_priv(netdev);
-	struct net_device_stats *stats = &netdev->stats;
 
 	stats->rx_packets = adapter->stats.rx_pkts + adapter->stats.lro_pkts;
 	stats->tx_packets = adapter->stats.xmitfinished;