6 files changed, 196 insertions, 51 deletions

diff --git a/drivers/net/ixgbe/ixgbe.h b/drivers/net/ixgbe/ixgbe.h
index 385be6016667..2b854161c61b 100644
--- a/drivers/net/ixgbe/ixgbe.h
+++ b/drivers/net/ixgbe/ixgbe.h
@@ -340,7 +340,6 @@ struct ixgbe_adapter {
         /* OS defined structs */
         struct net_device *netdev;
         struct pci_dev *pdev;
-        struct net_device_stats net_stats;
 
         u32 test_icr;
         struct ixgbe_ring test_tx_ring;
@@ -397,7 +396,7 @@ enum ixgbe_boards {
 extern struct ixgbe_info ixgbe_82598_info;
 extern struct ixgbe_info ixgbe_82599_info;
 #ifdef CONFIG_IXGBE_DCB
-extern struct dcbnl_rtnl_ops dcbnl_ops;
+extern const struct dcbnl_rtnl_ops dcbnl_ops;
 extern int ixgbe_copy_dcb_cfg(struct ixgbe_dcb_config *src_dcb_cfg,
                               struct ixgbe_dcb_config *dst_dcb_cfg,
                               int tc_max);
diff --git a/drivers/net/ixgbe/ixgbe_82599.c b/drivers/net/ixgbe/ixgbe_82599.c
index 34b04924c8a1..ae27c41222e3 100644
--- a/drivers/net/ixgbe/ixgbe_82599.c
+++ b/drivers/net/ixgbe/ixgbe_82599.c
@@ -42,6 +42,10 @@ s32 ixgbe_setup_mac_link_multispeed_fiber(struct ixgbe_hw *hw,
                                           ixgbe_link_speed speed,
                                           bool autoneg,
                                           bool autoneg_wait_to_complete);
+static s32 ixgbe_setup_mac_link_smartspeed(struct ixgbe_hw *hw,
+                                           ixgbe_link_speed speed,
+                                           bool autoneg,
+                                           bool autoneg_wait_to_complete);
 s32 ixgbe_start_mac_link_82599(struct ixgbe_hw *hw,
                                bool autoneg_wait_to_complete);
 s32 ixgbe_setup_mac_link_82599(struct ixgbe_hw *hw,
@@ -64,7 +68,13 @@ static void ixgbe_init_mac_link_ops_82599(struct ixgbe_hw *hw)
                 /* Set up dual speed SFP+ support */
                 mac->ops.setup_link = &ixgbe_setup_mac_link_multispeed_fiber;
         } else {
-                mac->ops.setup_link = &ixgbe_setup_mac_link_82599;
+                if ((mac->ops.get_media_type(hw) ==
+                     ixgbe_media_type_backplane) &&
+                    (hw->phy.smart_speed == ixgbe_smart_speed_auto ||
+                     hw->phy.smart_speed == ixgbe_smart_speed_on))
+                        mac->ops.setup_link = &ixgbe_setup_mac_link_smartspeed;
+                else
+                        mac->ops.setup_link = &ixgbe_setup_mac_link_82599;
         }
 }
 
@@ -337,6 +347,7 @@ static enum ixgbe_media_type ixgbe_get_media_type_82599(struct ixgbe_hw *hw)
                 media_type = ixgbe_media_type_backplane;
                 break;
         case IXGBE_DEV_ID_82599_SFP:
+        case IXGBE_DEV_ID_82599_SFP_EM:
                 media_type = ixgbe_media_type_fiber;
                 break;
         case IXGBE_DEV_ID_82599_CX4:
@@ -479,7 +490,12 @@ s32 ixgbe_setup_mac_link_multispeed_fiber(struct ixgbe_hw *hw,
                         hw->mac.autotry_restart = false;
                 }
 
-                /* The controller may take up to 500ms at 10g to acquire link */
+                /*
+                 * Wait for the controller to acquire link.  Per IEEE 802.3ap,
+                 * Section 73.10.2, we may have to wait up to 500ms if KR is
+                 * attempted.  82599 uses the same timing for 10g SFI.
+                 */
+
                 for (i = 0; i < 5; i++) {
                         /* Wait for the link partner to also set speed */
                         msleep(100);
@@ -567,6 +583,111 @@ out:
 }
 
 /**
+ *  ixgbe_setup_mac_link_smartspeed - Set MAC link speed using SmartSpeed
+ *  @hw: pointer to hardware structure
+ *  @speed: new link speed
+ *  @autoneg: true if autonegotiation enabled
+ *  @autoneg_wait_to_complete: true when waiting for completion is needed
+ *
+ *  Implements the Intel SmartSpeed algorithm.
+ **/
+static s32 ixgbe_setup_mac_link_smartspeed(struct ixgbe_hw *hw,
+                                     ixgbe_link_speed speed, bool autoneg,
+                                     bool autoneg_wait_to_complete)
+{
+        s32 status = 0;
+        ixgbe_link_speed link_speed;
+        s32 i, j;
+        bool link_up = false;
+        u32 autoc_reg = IXGBE_READ_REG(hw, IXGBE_AUTOC);
+
+        hw_dbg(hw, "ixgbe_setup_mac_link_smartspeed.\n");
+
+         /* Set autoneg_advertised value based on input link speed */
+        hw->phy.autoneg_advertised = 0;
+
+        if (speed & IXGBE_LINK_SPEED_10GB_FULL)
+                hw->phy.autoneg_advertised |= IXGBE_LINK_SPEED_10GB_FULL;
+
+        if (speed & IXGBE_LINK_SPEED_1GB_FULL)
+                hw->phy.autoneg_advertised |= IXGBE_LINK_SPEED_1GB_FULL;
+
+        if (speed & IXGBE_LINK_SPEED_100_FULL)
+                hw->phy.autoneg_advertised |= IXGBE_LINK_SPEED_100_FULL;
+
+        /*
+         * Implement Intel SmartSpeed algorithm.  SmartSpeed will reduce the
+         * autoneg advertisement if link is unable to be established at the
+         * highest negotiated rate.  This can sometimes happen due to integrity
+         * issues with the physical media connection.
+         */
+
+        /* First, try to get link with full advertisement */
+        hw->phy.smart_speed_active = false;
+        for (j = 0; j < IXGBE_SMARTSPEED_MAX_RETRIES; j++) {
+                status = ixgbe_setup_mac_link_82599(hw, speed, autoneg,
+                                                    autoneg_wait_to_complete);
+                if (status)
+                        goto out;
+
+                /*
+                 * Wait for the controller to acquire link.  Per IEEE 802.3ap,
+                 * Section 73.10.2, we may have to wait up to 500ms if KR is
+                 * attempted, or 200ms if KX/KX4/BX/BX4 is attempted, per
+                 * Table 9 in the AN MAS.
+                 */
+                for (i = 0; i < 5; i++) {
+                        mdelay(100);
+
+                        /* If we have link, just jump out */
+                        hw->mac.ops.check_link(hw, &link_speed,
+                                               &link_up, false);
+                        if (link_up)
+                                goto out;
+                }
+        }
+
+        /*
+         * We didn't get link.  If we advertised KR plus one of KX4/KX
+         * (or BX4/BX), then disable KR and try again.
+         */
+        if (((autoc_reg & IXGBE_AUTOC_KR_SUPP) == 0) ||
+            ((autoc_reg & IXGBE_AUTOC_KX4_KX_SUPP_MASK) == 0))
+                goto out;
+
+        /* Turn SmartSpeed on to disable KR support */
+        hw->phy.smart_speed_active = true;
+        status = ixgbe_setup_mac_link_82599(hw, speed, autoneg,
+                                            autoneg_wait_to_complete);
+        if (status)
+                goto out;
+
+        /*
+         * Wait for the controller to acquire link.  600ms will allow for
+         * the AN link_fail_inhibit_timer as well for multiple cycles of
+         * parallel detect, both 10g and 1g. This allows for the maximum
+         * connect attempts as defined in the AN MAS table 73-7.
+         */
+        for (i = 0; i < 6; i++) {
+                mdelay(100);
+
+                /* If we have link, just jump out */
+                hw->mac.ops.check_link(hw, &link_speed,
+                                       &link_up, false);
+                if (link_up)
+                        goto out;
+        }
+
+        /* We didn't get link.  Turn SmartSpeed back off. */
+        hw->phy.smart_speed_active = false;
+        status = ixgbe_setup_mac_link_82599(hw, speed, autoneg,
+                                            autoneg_wait_to_complete);
+
+out:
+        return status;
+}
+
+/**
  *  ixgbe_check_mac_link_82599 - Determine link and speed status
  *  @hw: pointer to hardware structure
  *  @speed: pointer to link speed
@@ -669,7 +790,8 @@ s32 ixgbe_setup_mac_link_82599(struct ixgbe_hw *hw,
                 if (speed & IXGBE_LINK_SPEED_10GB_FULL)
                         if (orig_autoc & IXGBE_AUTOC_KX4_SUPP)
                                 autoc |= IXGBE_AUTOC_KX4_SUPP;
-                        if (orig_autoc & IXGBE_AUTOC_KR_SUPP)
+                        if ((orig_autoc & IXGBE_AUTOC_KR_SUPP) &&
+                            (hw->phy.smart_speed_active == false))
                                 autoc |= IXGBE_AUTOC_KR_SUPP;
                 if (speed & IXGBE_LINK_SPEED_1GB_FULL)
                         autoc |= IXGBE_AUTOC_KX_SUPP;
diff --git a/drivers/net/ixgbe/ixgbe_dcb_nl.c b/drivers/net/ixgbe/ixgbe_dcb_nl.c
index a6bc1ef28f92..3c7a79a7d7c6 100644
--- a/drivers/net/ixgbe/ixgbe_dcb_nl.c
+++ b/drivers/net/ixgbe/ixgbe_dcb_nl.c
@@ -563,7 +563,7 @@ static u8 ixgbe_dcbnl_setapp(struct net_device *netdev,
         return rval;
 }
 
-struct dcbnl_rtnl_ops dcbnl_ops = {
+const struct dcbnl_rtnl_ops dcbnl_ops = {
         .getstate       = ixgbe_dcbnl_get_state,
         .setstate       = ixgbe_dcbnl_set_state,
         .getpermhwaddr  = ixgbe_dcbnl_get_perm_hw_addr,
diff --git a/drivers/net/ixgbe/ixgbe_ethtool.c b/drivers/net/ixgbe/ixgbe_ethtool.c
index 856c18c207f3..9d2cc833691b 100644
--- a/drivers/net/ixgbe/ixgbe_ethtool.c
+++ b/drivers/net/ixgbe/ixgbe_ethtool.c
@@ -40,19 +40,27 @@
 
 #define IXGBE_ALL_RAR_ENTRIES 16
 
+enum {NETDEV_STATS, IXGBE_STATS};
+
 struct ixgbe_stats {
         char stat_string[ETH_GSTRING_LEN];
+        int type;
         int sizeof_stat;
         int stat_offset;
 };
 
-#define IXGBE_STAT(m) sizeof(((struct ixgbe_adapter *)0)->m), \
-                             offsetof(struct ixgbe_adapter, m)
+#define IXGBE_STAT(m)           IXGBE_STATS, \
+                                sizeof(((struct ixgbe_adapter *)0)->m), \
+                                offsetof(struct ixgbe_adapter, m)
+#define IXGBE_NETDEV_STAT(m)    NETDEV_STATS, \
+                                sizeof(((struct net_device *)0)->m), \
+                                offsetof(struct net_device, m)
+
 static struct ixgbe_stats ixgbe_gstrings_stats[] = {
-        {"rx_packets", IXGBE_STAT(net_stats.rx_packets)},
-        {"tx_packets", IXGBE_STAT(net_stats.tx_packets)},
-        {"rx_bytes", IXGBE_STAT(net_stats.rx_bytes)},
-        {"tx_bytes", IXGBE_STAT(net_stats.tx_bytes)},
+        {"rx_packets", IXGBE_NETDEV_STAT(stats.rx_packets)},
+        {"tx_packets", IXGBE_NETDEV_STAT(stats.tx_packets)},
+        {"rx_bytes", IXGBE_NETDEV_STAT(stats.rx_bytes)},
+        {"tx_bytes", IXGBE_NETDEV_STAT(stats.tx_bytes)},
         {"rx_pkts_nic", IXGBE_STAT(stats.gprc)},
         {"tx_pkts_nic", IXGBE_STAT(stats.gptc)},
         {"rx_bytes_nic", IXGBE_STAT(stats.gorc)},
@@ -60,26 +68,26 @@ static struct ixgbe_stats ixgbe_gstrings_stats[] = {
         {"lsc_int", IXGBE_STAT(lsc_int)},
         {"tx_busy", IXGBE_STAT(tx_busy)},
         {"non_eop_descs", IXGBE_STAT(non_eop_descs)},
-        {"rx_errors", IXGBE_STAT(net_stats.rx_errors)},
-        {"tx_errors", IXGBE_STAT(net_stats.tx_errors)},
-        {"rx_dropped", IXGBE_STAT(net_stats.rx_dropped)},
-        {"tx_dropped", IXGBE_STAT(net_stats.tx_dropped)},
-        {"multicast", IXGBE_STAT(net_stats.multicast)},
+        {"rx_errors", IXGBE_NETDEV_STAT(stats.rx_errors)},
+        {"tx_errors", IXGBE_NETDEV_STAT(stats.tx_errors)},
+        {"rx_dropped", IXGBE_NETDEV_STAT(stats.rx_dropped)},
+        {"tx_dropped", IXGBE_NETDEV_STAT(stats.tx_dropped)},
+        {"multicast", IXGBE_NETDEV_STAT(stats.multicast)},
         {"broadcast", IXGBE_STAT(stats.bprc)},
         {"rx_no_buffer_count", IXGBE_STAT(stats.rnbc[0]) },
-        {"collisions", IXGBE_STAT(net_stats.collisions)},
-        {"rx_over_errors", IXGBE_STAT(net_stats.rx_over_errors)},
-        {"rx_crc_errors", IXGBE_STAT(net_stats.rx_crc_errors)},
-        {"rx_frame_errors", IXGBE_STAT(net_stats.rx_frame_errors)},
+        {"collisions", IXGBE_NETDEV_STAT(stats.collisions)},
+        {"rx_over_errors", IXGBE_NETDEV_STAT(stats.rx_over_errors)},
+        {"rx_crc_errors", IXGBE_NETDEV_STAT(stats.rx_crc_errors)},
+        {"rx_frame_errors", IXGBE_NETDEV_STAT(stats.rx_frame_errors)},
         {"hw_rsc_count", IXGBE_STAT(rsc_count)},
         {"fdir_match", IXGBE_STAT(stats.fdirmatch)},
         {"fdir_miss", IXGBE_STAT(stats.fdirmiss)},
-        {"rx_fifo_errors", IXGBE_STAT(net_stats.rx_fifo_errors)},
-        {"rx_missed_errors", IXGBE_STAT(net_stats.rx_missed_errors)},
-        {"tx_aborted_errors", IXGBE_STAT(net_stats.tx_aborted_errors)},
-        {"tx_carrier_errors", IXGBE_STAT(net_stats.tx_carrier_errors)},
-        {"tx_fifo_errors", IXGBE_STAT(net_stats.tx_fifo_errors)},
-        {"tx_heartbeat_errors", IXGBE_STAT(net_stats.tx_heartbeat_errors)},
+        {"rx_fifo_errors", IXGBE_NETDEV_STAT(stats.rx_fifo_errors)},
+        {"rx_missed_errors", IXGBE_NETDEV_STAT(stats.rx_missed_errors)},
+        {"tx_aborted_errors", IXGBE_NETDEV_STAT(stats.tx_aborted_errors)},
+        {"tx_carrier_errors", IXGBE_NETDEV_STAT(stats.tx_carrier_errors)},
+        {"tx_fifo_errors", IXGBE_NETDEV_STAT(stats.tx_fifo_errors)},
+        {"tx_heartbeat_errors", IXGBE_NETDEV_STAT(stats.tx_heartbeat_errors)},
         {"tx_timeout_count", IXGBE_STAT(tx_timeout_count)},
         {"tx_restart_queue", IXGBE_STAT(restart_queue)},
         {"rx_long_length_errors", IXGBE_STAT(stats.roc)},
@@ -933,10 +941,21 @@ static void ixgbe_get_ethtool_stats(struct net_device *netdev,
         int stat_count = sizeof(struct ixgbe_queue_stats) / sizeof(u64);
         int j, k;
         int i;
+        char *p = NULL;
 
         ixgbe_update_stats(adapter);
         for (i = 0; i < IXGBE_GLOBAL_STATS_LEN; i++) {
-                char *p = (char *)adapter + ixgbe_gstrings_stats[i].stat_offset;
+                switch (ixgbe_gstrings_stats[i].type) {
+                case NETDEV_STATS:
+                        p = (char *) netdev +
+                                        ixgbe_gstrings_stats[i].stat_offset;
+                        break;
+                case IXGBE_STATS:
+                        p = (char *) adapter +
+                                        ixgbe_gstrings_stats[i].stat_offset;
+                        break;
+                }
+
                 data[i] = (ixgbe_gstrings_stats[i].sizeof_stat ==
                            sizeof(u64)) ? *(u64 *)p : *(u32 *)p;
         }
diff --git a/drivers/net/ixgbe/ixgbe_main.c b/drivers/net/ixgbe/ixgbe_main.c
index cbb143ca1eb8..4c8a44919705 100644
--- a/drivers/net/ixgbe/ixgbe_main.c
+++ b/drivers/net/ixgbe/ixgbe_main.c
@@ -97,6 +97,8 @@ static struct pci_device_id ixgbe_pci_tbl[] = {
          board_82599 },
         {PCI_VDEVICE(INTEL, IXGBE_DEV_ID_82599_SFP),
          board_82599 },
+        {PCI_VDEVICE(INTEL, IXGBE_DEV_ID_82599_SFP_EM),
+         board_82599 },
         {PCI_VDEVICE(INTEL, IXGBE_DEV_ID_82599_KX4_MEZZ),
          board_82599 },
         {PCI_VDEVICE(INTEL, IXGBE_DEV_ID_82599_CX4),
@@ -372,8 +374,8 @@ static bool ixgbe_clean_tx_irq(struct ixgbe_q_vector *q_vector,
         tx_ring->total_packets += total_packets;
         tx_ring->stats.packets += total_packets;
         tx_ring->stats.bytes += total_bytes;
-        adapter->net_stats.tx_bytes += total_bytes;
-        adapter->net_stats.tx_packets += total_packets;
+        netdev->stats.tx_bytes += total_bytes;
+        netdev->stats.tx_packets += total_packets;
         return (count < tx_ring->work_limit);
 }
 
@@ -614,22 +616,14 @@ static void ixgbe_alloc_rx_buffers(struct ixgbe_adapter *adapter,
 
                 if (!bi->skb) {
                         struct sk_buff *skb;
-                        skb = netdev_alloc_skb(adapter->netdev,
-                                               (rx_ring->rx_buf_len +
-                                                NET_IP_ALIGN));
+                        skb = netdev_alloc_skb_ip_align(adapter->netdev,
+                                                        rx_ring->rx_buf_len);
 
                         if (!skb) {
                                 adapter->alloc_rx_buff_failed++;
                                 goto no_buffers;
                         }
 
-                        /*
-                         * Make buffer alignment 2 beyond a 16 byte boundary
-                         * this will result in a 16 byte aligned IP header after
-                         * the 14 byte MAC header is removed
-                         */
-                        skb_reserve(skb, NET_IP_ALIGN);
-
                         bi->skb = skb;
                         bi->dma = pci_map_single(pdev, skb->data,
                                                  rx_ring->rx_buf_len,
@@ -709,6 +703,7 @@ static bool ixgbe_clean_rx_irq(struct ixgbe_q_vector *q_vector,
                                int *work_done, int work_to_do)
 {
         struct ixgbe_adapter *adapter = q_vector->adapter;
+        struct net_device *netdev = adapter->netdev;
         struct pci_dev *pdev = adapter->pdev;
         union ixgbe_adv_rx_desc *rx_desc, *next_rxd;
         struct ixgbe_rx_buffer *rx_buffer_info, *next_buffer;
@@ -880,8 +875,8 @@ next_desc:
 
         rx_ring->total_packets += total_rx_packets;
         rx_ring->total_bytes += total_rx_bytes;
-        adapter->net_stats.rx_bytes += total_rx_bytes;
-        adapter->net_stats.rx_packets += total_rx_packets;
+        netdev->stats.rx_bytes += total_rx_bytes;
+        netdev->stats.rx_packets += total_rx_packets;
 
         return cleaned;
 }
@@ -4403,6 +4398,7 @@ static void ixgbe_shutdown(struct pci_dev *pdev)
  **/
 void ixgbe_update_stats(struct ixgbe_adapter *adapter)
 {
+        struct net_device *netdev = adapter->netdev;
         struct ixgbe_hw *hw = &adapter->hw;
         u64 total_mpc = 0;
         u32 i, missed_rx = 0, mpc, bprc, lxon, lxoff, xon_off_tot;
@@ -4522,15 +4518,15 @@ void ixgbe_update_stats(struct ixgbe_adapter *adapter)
         adapter->stats.bptc += IXGBE_READ_REG(hw, IXGBE_BPTC);
 
         /* Fill out the OS statistics structure */
-        adapter->net_stats.multicast = adapter->stats.mprc;
+        netdev->stats.multicast = adapter->stats.mprc;
 
         /* Rx Errors */
-        adapter->net_stats.rx_errors = adapter->stats.crcerrs +
+        netdev->stats.rx_errors = adapter->stats.crcerrs +
                                        adapter->stats.rlec;
-        adapter->net_stats.rx_dropped = 0;
-        adapter->net_stats.rx_length_errors = adapter->stats.rlec;
-        adapter->net_stats.rx_crc_errors = adapter->stats.crcerrs;
-        adapter->net_stats.rx_missed_errors = total_mpc;
+        netdev->stats.rx_dropped = 0;
+        netdev->stats.rx_length_errors = adapter->stats.rlec;
+        netdev->stats.rx_crc_errors = adapter->stats.crcerrs;
+        netdev->stats.rx_missed_errors = total_mpc;
 }
 
 /**
@@ -5300,10 +5296,8 @@ static netdev_tx_t ixgbe_xmit_frame(struct sk_buff *skb,
  **/
 static struct net_device_stats *ixgbe_get_stats(struct net_device *netdev)
 {
-        struct ixgbe_adapter *adapter = netdev_priv(netdev);
-
         /* only return the current stats */
-        return &adapter->net_stats;
+        return &netdev->stats;
 }
 
 /**
diff --git a/drivers/net/ixgbe/ixgbe_type.h b/drivers/net/ixgbe/ixgbe_type.h
index ef4bdd58e016..1cab53eb22f3 100644
--- a/drivers/net/ixgbe/ixgbe_type.h
+++ b/drivers/net/ixgbe/ixgbe_type.h
@@ -52,6 +52,7 @@
 #define IXGBE_DEV_ID_82599_KX4_MEZZ      0x1514
 #define IXGBE_DEV_ID_82599_CX4           0x10F9
 #define IXGBE_DEV_ID_82599_SFP           0x10FB
+#define IXGBE_DEV_ID_82599_SFP_EM        0x1507
 #define IXGBE_DEV_ID_82599_XAUI_LOM      0x10FC
 #define IXGBE_DEV_ID_82599_COMBO_BACKPLANE 0x10F8
 
@@ -2171,6 +2172,14 @@ enum ixgbe_fc_mode {
         ixgbe_fc_default
 };
 
+/* Smart Speed Settings */
+#define IXGBE_SMARTSPEED_MAX_RETRIES    3
+enum ixgbe_smart_speed {
+        ixgbe_smart_speed_auto = 0,
+        ixgbe_smart_speed_on,
+        ixgbe_smart_speed_off
+};
+
 /* PCI bus types */
 enum ixgbe_bus_type {
         ixgbe_bus_type_unknown = 0,
@@ -2431,6 +2440,8 @@ struct ixgbe_phy_info {
         enum ixgbe_media_type           media_type;
         bool                            reset_disable;
         ixgbe_autoneg_advertised        autoneg_advertised;
+        enum ixgbe_smart_speed          smart_speed;
+        bool                            smart_speed_active;
         bool                            multispeed_fiber;
 };