Automatic merge of /spare/repo/netdev-2.6 branch ixgb

5 files changed, 70 insertions, 116 deletions

diff --git a/drivers/net/ixgb/ixgb.h b/drivers/net/ixgb/ixgb.h
index 26c4f15f7fc0..f8d3385c7842 100644
--- a/drivers/net/ixgb/ixgb.h
+++ b/drivers/net/ixgb/ixgb.h
@@ -110,7 +110,7 @@ struct ixgb_adapter;
 #define IXGB_TX_QUEUE_WAKE 16
 
 /* How many Rx Buffers do we bundle into one write to the hardware ? */
-#define IXGB_RX_BUFFER_WRITE    16      /* Must be power of 2 */
+#define IXGB_RX_BUFFER_WRITE    4       /* Must be power of 2 */
 
 /* only works for sizes that are powers of 2 */
 #define IXGB_ROUNDUP(i, size) ((i) = (((i) + (size) - 1) & ~((size) - 1)))
diff --git a/drivers/net/ixgb/ixgb_ee.c b/drivers/net/ixgb/ixgb_ee.c
index 653e99f919ce..3aae110c5560 100644
--- a/drivers/net/ixgb/ixgb_ee.c
+++ b/drivers/net/ixgb/ixgb_ee.c
@@ -411,7 +411,7 @@ ixgb_write_eeprom(struct ixgb_hw *hw, uint16_t offset, uint16_t data)
         ixgb_cleanup_eeprom(hw);
 
         /* clear the init_ctrl_reg_1 to signify that the cache is invalidated */
-        ee_map->init_ctrl_reg_1 = EEPROM_ICW1_SIGNATURE_CLEAR;
+        ee_map->init_ctrl_reg_1 = le16_to_cpu(EEPROM_ICW1_SIGNATURE_CLEAR);
 
         return;
 }
@@ -483,7 +483,7 @@ ixgb_get_eeprom_data(struct ixgb_hw *hw)
                 DEBUGOUT("ixgb_ee: Checksum invalid.\n");
                 /* clear the init_ctrl_reg_1 to signify that the cache is
                  * invalidated */
-                ee_map->init_ctrl_reg_1 = EEPROM_ICW1_SIGNATURE_CLEAR;
+                ee_map->init_ctrl_reg_1 = le16_to_cpu(EEPROM_ICW1_SIGNATURE_CLEAR);
                 return (FALSE);
         }
 
@@ -579,7 +579,7 @@ ixgb_get_ee_compatibility(struct ixgb_hw *hw)
         struct ixgb_ee_map_type *ee_map = (struct ixgb_ee_map_type *)hw->eeprom;
 
         if(ixgb_check_and_get_eeprom_data(hw) == TRUE)
-                return(ee_map->compatibility);
+                return (le16_to_cpu(ee_map->compatibility));
 
         return(0);
 }
@@ -616,7 +616,7 @@ ixgb_get_ee_init_ctrl_reg_1(struct ixgb_hw *hw)
         struct ixgb_ee_map_type *ee_map = (struct ixgb_ee_map_type *)hw->eeprom;
 
         if(ixgb_check_and_get_eeprom_data(hw) == TRUE)
-                return(ee_map->init_ctrl_reg_1);
+                return (le16_to_cpu(ee_map->init_ctrl_reg_1));
 
         return(0);
 }
@@ -635,7 +635,7 @@ ixgb_get_ee_init_ctrl_reg_2(struct ixgb_hw *hw)
         struct ixgb_ee_map_type *ee_map = (struct ixgb_ee_map_type *)hw->eeprom;
 
         if(ixgb_check_and_get_eeprom_data(hw) == TRUE)
-                return(ee_map->init_ctrl_reg_2);
+                return (le16_to_cpu(ee_map->init_ctrl_reg_2));
 
         return(0);
 }
@@ -654,7 +654,7 @@ ixgb_get_ee_subsystem_id(struct ixgb_hw *hw)
         struct ixgb_ee_map_type *ee_map = (struct ixgb_ee_map_type *)hw->eeprom;
 
         if(ixgb_check_and_get_eeprom_data(hw) == TRUE)
-           return(ee_map->subsystem_id);
+                return (le16_to_cpu(ee_map->subsystem_id));
 
         return(0);
 }
@@ -673,7 +673,7 @@ ixgb_get_ee_subvendor_id(struct ixgb_hw *hw)
         struct ixgb_ee_map_type *ee_map = (struct ixgb_ee_map_type *)hw->eeprom;
 
         if(ixgb_check_and_get_eeprom_data(hw) == TRUE)
-                return(ee_map->subvendor_id);
+                return (le16_to_cpu(ee_map->subvendor_id));
 
         return(0);
 }
@@ -692,7 +692,7 @@ ixgb_get_ee_device_id(struct ixgb_hw *hw)
         struct ixgb_ee_map_type *ee_map = (struct ixgb_ee_map_type *)hw->eeprom;
 
         if(ixgb_check_and_get_eeprom_data(hw) == TRUE)
-                return(ee_map->device_id);
+                return (le16_to_cpu(ee_map->device_id));
 
         return(0);
 }
@@ -711,7 +711,7 @@ ixgb_get_ee_vendor_id(struct ixgb_hw *hw)
         struct ixgb_ee_map_type *ee_map = (struct ixgb_ee_map_type *)hw->eeprom;
 
         if(ixgb_check_and_get_eeprom_data(hw) == TRUE)
-                return(ee_map->vendor_id);
+                return (le16_to_cpu(ee_map->vendor_id));
 
         return(0);
 }
@@ -730,7 +730,7 @@ ixgb_get_ee_swdpins_reg(struct ixgb_hw *hw)
         struct ixgb_ee_map_type *ee_map = (struct ixgb_ee_map_type *)hw->eeprom;
 
         if(ixgb_check_and_get_eeprom_data(hw) == TRUE)
-                return(ee_map->swdpins_reg);
+                return (le16_to_cpu(ee_map->swdpins_reg));
 
         return(0);
 }
@@ -749,7 +749,7 @@ ixgb_get_ee_d3_power(struct ixgb_hw *hw)
         struct ixgb_ee_map_type *ee_map = (struct ixgb_ee_map_type *)hw->eeprom;
 
         if(ixgb_check_and_get_eeprom_data(hw) == TRUE)
-                return(ee_map->d3_power);
+                return (le16_to_cpu(ee_map->d3_power));
 
         return(0);
 }
@@ -768,7 +768,7 @@ ixgb_get_ee_d0_power(struct ixgb_hw *hw)
         struct ixgb_ee_map_type *ee_map = (struct ixgb_ee_map_type *)hw->eeprom;
 
         if(ixgb_check_and_get_eeprom_data(hw) == TRUE)
-                return(ee_map->d0_power);
+                return (le16_to_cpu(ee_map->d0_power));
 
         return(0);
 }
diff --git a/drivers/net/ixgb/ixgb_ethtool.c b/drivers/net/ixgb/ixgb_ethtool.c
index aea10e8aaa72..3fa113854eeb 100644
--- a/drivers/net/ixgb/ixgb_ethtool.c
+++ b/drivers/net/ixgb/ixgb_ethtool.c
@@ -252,7 +252,9 @@ ixgb_get_regs(struct net_device *netdev,
         uint32_t *reg_start = reg;
         uint8_t i;
 
-        regs->version = (adapter->hw.device_id << 16) | adapter->hw.subsystem_id;
+        /* the 1 (one) below indicates an attempt at versioning, if the
+         * interface in ethtool or the driver this 1 should be incremented */
+        regs->version = (1<<24) | hw->revision_id << 16 | hw->device_id;
 
         /* General Registers */
         *reg++ = IXGB_READ_REG(hw, CTRL0);      /*   0 */
diff --git a/drivers/net/ixgb/ixgb_main.c b/drivers/net/ixgb/ixgb_main.c
index 7d26623d8592..35f6a7c271a2 100644
--- a/drivers/net/ixgb/ixgb_main.c
+++ b/drivers/net/ixgb/ixgb_main.c
@@ -47,7 +47,7 @@ char ixgb_driver_string[] = "Intel(R) PRO/10GbE Network Driver";
 #else
 #define DRIVERNAPI "-NAPI"
 #endif
-char ixgb_driver_version[] = "1.0.90-k2"DRIVERNAPI;
+char ixgb_driver_version[] = "1.0.95-k2"DRIVERNAPI;
 char ixgb_copyright[] = "Copyright (c) 1999-2005 Intel Corporation.";
 
 /* ixgb_pci_tbl - PCI Device ID Table
@@ -103,6 +103,7 @@ static int ixgb_change_mtu(struct net_device *netdev, int new_mtu);
 static int ixgb_set_mac(struct net_device *netdev, void *p);
 static irqreturn_t ixgb_intr(int irq, void *data, struct pt_regs *regs);
 static boolean_t ixgb_clean_tx_irq(struct ixgb_adapter *adapter);
+
 #ifdef CONFIG_IXGB_NAPI
 static int ixgb_clean(struct net_device *netdev, int *budget);
 static boolean_t ixgb_clean_rx_irq(struct ixgb_adapter *adapter,
@@ -120,33 +121,20 @@ static void ixgb_vlan_rx_add_vid(struct net_device *netdev, uint16_t vid);
 static void ixgb_vlan_rx_kill_vid(struct net_device *netdev, uint16_t vid);
 static void ixgb_restore_vlan(struct ixgb_adapter *adapter);
 
-static int ixgb_notify_reboot(struct notifier_block *, unsigned long event,
-                              void *ptr);
-static int ixgb_suspend(struct pci_dev *pdev, uint32_t state);
-
 #ifdef CONFIG_NET_POLL_CONTROLLER
 /* for netdump / net console */
 static void ixgb_netpoll(struct net_device *dev);
 #endif
 
-struct notifier_block ixgb_notifier_reboot = {
-        .notifier_call = ixgb_notify_reboot,
-        .next = NULL,
-        .priority = 0
-};
-
 /* Exported from other modules */
 
 extern void ixgb_check_options(struct ixgb_adapter *adapter);
 
 static struct pci_driver ixgb_driver = {
-        .name = ixgb_driver_name,
+        .name     = ixgb_driver_name,
         .id_table = ixgb_pci_tbl,
-        .probe = ixgb_probe,
-        .remove = __devexit_p(ixgb_remove),
-        /* Power Managment Hooks */
-        .suspend = NULL,
-        .resume = NULL
+        .probe    = ixgb_probe,
+        .remove   = __devexit_p(ixgb_remove),
 };
 
 MODULE_AUTHOR("Intel Corporation, <linux.nics@intel.com>");
@@ -169,17 +157,12 @@ MODULE_LICENSE("GPL");
 static int __init
 ixgb_init_module(void)
 {
-        int ret;
         printk(KERN_INFO "%s - version %s\n",
                ixgb_driver_string, ixgb_driver_version);
 
         printk(KERN_INFO "%s\n", ixgb_copyright);
 
-        ret = pci_module_init(&ixgb_driver);
-        if(ret >= 0) {
-                register_reboot_notifier(&ixgb_notifier_reboot);
-        }
-        return ret;
+        return pci_module_init(&ixgb_driver);
 }
 
 module_init(ixgb_init_module);
@@ -194,7 +177,6 @@ module_init(ixgb_init_module);
 static void __exit
 ixgb_exit_module(void)
 {
-        unregister_reboot_notifier(&ixgb_notifier_reboot);
         pci_unregister_driver(&ixgb_driver);
 }
 
@@ -224,8 +206,8 @@ ixgb_irq_enable(struct ixgb_adapter *adapter)
 {
         if(atomic_dec_and_test(&adapter->irq_sem)) {
                 IXGB_WRITE_REG(&adapter->hw, IMS,
-                           IXGB_INT_RXT0 | IXGB_INT_RXDMT0 | IXGB_INT_TXDW |
-                           IXGB_INT_RXO | IXGB_INT_LSC);
+                               IXGB_INT_RXT0 | IXGB_INT_RXDMT0 | IXGB_INT_TXDW |
+                               IXGB_INT_LSC);
                 IXGB_WRITE_FLUSH(&adapter->hw);
         }
 }
@@ -1209,10 +1191,10 @@ ixgb_tso(struct ixgb_adapter *adapter, struct sk_buff *skb)
                                                 | IXGB_CONTEXT_DESC_CMD_TSE
                                                 | IXGB_CONTEXT_DESC_CMD_IP
                                                 | IXGB_CONTEXT_DESC_CMD_TCP
-                                                | IXGB_CONTEXT_DESC_CMD_RS
                                                 | IXGB_CONTEXT_DESC_CMD_IDE
                                                 | (skb->len - (hdr_len)));
 
+
                 if(++i == adapter->tx_ring.count) i = 0;
                 adapter->tx_ring.next_to_use = i;
 
@@ -1247,8 +1229,7 @@ ixgb_tx_csum(struct ixgb_adapter *adapter, struct sk_buff *skb)
                 context_desc->mss = 0;
                 context_desc->cmd_type_len =
                         cpu_to_le32(IXGB_CONTEXT_DESC_TYPE
-                                        | IXGB_TX_DESC_CMD_RS 
-                                        | IXGB_TX_DESC_CMD_IDE);
+                                    | IXGB_TX_DESC_CMD_IDE);
 
                 if(++i == adapter->tx_ring.count) i = 0;
                 adapter->tx_ring.next_to_use = i;
@@ -1273,6 +1254,7 @@ ixgb_tx_map(struct ixgb_adapter *adapter, struct sk_buff *skb,
 
         unsigned int nr_frags = skb_shinfo(skb)->nr_frags;
         unsigned int f;
+
         len -= skb->data_len;
 
         i = tx_ring->next_to_use;
@@ -1526,14 +1508,33 @@ ixgb_change_mtu(struct net_device *netdev, int new_mtu)
 void
 ixgb_update_stats(struct ixgb_adapter *adapter)
 {
+        struct net_device *netdev = adapter->netdev;
+
+        if((netdev->flags & IFF_PROMISC) || (netdev->flags & IFF_ALLMULTI) ||
+           (netdev->mc_count > IXGB_MAX_NUM_MULTICAST_ADDRESSES)) {
+                u64 multi = IXGB_READ_REG(&adapter->hw, MPRCL);
+                u32 bcast_l = IXGB_READ_REG(&adapter->hw, BPRCL);
+                u32 bcast_h = IXGB_READ_REG(&adapter->hw, BPRCH);
+                u64 bcast = ((u64)bcast_h << 32) | bcast_l; 
+
+                multi |= ((u64)IXGB_READ_REG(&adapter->hw, MPRCH) << 32);
+                /* fix up multicast stats by removing broadcasts */
+                multi -= bcast;
+                
+                adapter->stats.mprcl += (multi & 0xFFFFFFFF);
+                adapter->stats.mprch += (multi >> 32);
+                adapter->stats.bprcl += bcast_l; 
+                adapter->stats.bprch += bcast_h;
+        } else {
+                adapter->stats.mprcl += IXGB_READ_REG(&adapter->hw, MPRCL);
+                adapter->stats.mprch += IXGB_READ_REG(&adapter->hw, MPRCH);
+                adapter->stats.bprcl += IXGB_READ_REG(&adapter->hw, BPRCL);
+                adapter->stats.bprch += IXGB_READ_REG(&adapter->hw, BPRCH);
+        }
         adapter->stats.tprl += IXGB_READ_REG(&adapter->hw, TPRL);
         adapter->stats.tprh += IXGB_READ_REG(&adapter->hw, TPRH);
         adapter->stats.gprcl += IXGB_READ_REG(&adapter->hw, GPRCL);
         adapter->stats.gprch += IXGB_READ_REG(&adapter->hw, GPRCH);
-        adapter->stats.bprcl += IXGB_READ_REG(&adapter->hw, BPRCL);
-        adapter->stats.bprch += IXGB_READ_REG(&adapter->hw, BPRCH);
-        adapter->stats.mprcl += IXGB_READ_REG(&adapter->hw, MPRCL);
-        adapter->stats.mprch += IXGB_READ_REG(&adapter->hw, MPRCH);
         adapter->stats.uprcl += IXGB_READ_REG(&adapter->hw, UPRCL);
         adapter->stats.uprch += IXGB_READ_REG(&adapter->hw, UPRCH);
         adapter->stats.vprcl += IXGB_READ_REG(&adapter->hw, VPRCL);
@@ -1823,7 +1824,6 @@ ixgb_clean_rx_irq(struct ixgb_adapter *adapter)
         struct pci_dev *pdev = adapter->pdev;
         struct ixgb_rx_desc *rx_desc, *next_rxd;
         struct ixgb_buffer *buffer_info, *next_buffer, *next2_buffer;
-        struct sk_buff *skb, *next_skb;
         uint32_t length;
         unsigned int i, j;
         boolean_t cleaned = FALSE;
@@ -1833,6 +1833,8 @@ ixgb_clean_rx_irq(struct ixgb_adapter *adapter)
         buffer_info = &rx_ring->buffer_info[i];
 
         while(rx_desc->status & IXGB_RX_DESC_STATUS_DD) {
+                struct sk_buff *skb, *next_skb;
+                u8 status;
 
 #ifdef CONFIG_IXGB_NAPI
                 if(*work_done >= work_to_do)
@@ -1840,7 +1842,9 @@ ixgb_clean_rx_irq(struct ixgb_adapter *adapter)
 
                 (*work_done)++;
 #endif
+                status = rx_desc->status;
                 skb = buffer_info->skb;
+
                 prefetch(skb->data);
 
                 if(++i == rx_ring->count) i = 0;
@@ -1855,7 +1859,6 @@ ixgb_clean_rx_irq(struct ixgb_adapter *adapter)
                 next_skb = next_buffer->skb;
                 prefetch(next_skb);
 
-
                 cleaned = TRUE;
 
                 pci_unmap_single(pdev,
@@ -1865,7 +1868,7 @@ ixgb_clean_rx_irq(struct ixgb_adapter *adapter)
 
                 length = le16_to_cpu(rx_desc->length);
 
-                if(unlikely(!(rx_desc->status & IXGB_RX_DESC_STATUS_EOP))) {
+                if(unlikely(!(status & IXGB_RX_DESC_STATUS_EOP))) {
 
                         /* All receives must fit into a single buffer */
 
@@ -1873,12 +1876,7 @@ ixgb_clean_rx_irq(struct ixgb_adapter *adapter)
                                          "length<%x>\n", length);
 
                         dev_kfree_skb_irq(skb);
-                        rx_desc->status = 0;
-                        buffer_info->skb = NULL;
-
-                        rx_desc = next_rxd;
-                        buffer_info = next_buffer;
-                        continue;
+                        goto rxdesc_done;
                 }
 
                 if (unlikely(rx_desc->errors
@@ -1887,12 +1885,7 @@ ixgb_clean_rx_irq(struct ixgb_adapter *adapter)
                                 IXGB_RX_DESC_ERRORS_RXE))) {
 
                         dev_kfree_skb_irq(skb);
-                        rx_desc->status = 0;
-                        buffer_info->skb = NULL;
-
-                        rx_desc = next_rxd;
-                        buffer_info = next_buffer;
-                        continue;
+                        goto rxdesc_done;
                 }
 
                 /* Good Receive */
@@ -1903,7 +1896,7 @@ ixgb_clean_rx_irq(struct ixgb_adapter *adapter)
 
                 skb->protocol = eth_type_trans(skb, netdev);
 #ifdef CONFIG_IXGB_NAPI
-                if(adapter->vlgrp && (rx_desc->status & IXGB_RX_DESC_STATUS_VP)) {
+                if(adapter->vlgrp && (status & IXGB_RX_DESC_STATUS_VP)) {
                         vlan_hwaccel_receive_skb(skb, adapter->vlgrp,
                                 le16_to_cpu(rx_desc->special) &
                                         IXGB_RX_DESC_SPECIAL_VLAN_MASK);
@@ -1911,7 +1904,7 @@ ixgb_clean_rx_irq(struct ixgb_adapter *adapter)
                         netif_receive_skb(skb);
                 }
 #else /* CONFIG_IXGB_NAPI */
-                if(adapter->vlgrp && (rx_desc->status & IXGB_RX_DESC_STATUS_VP)) {
+                if(adapter->vlgrp && (status & IXGB_RX_DESC_STATUS_VP)) {
                         vlan_hwaccel_rx(skb, adapter->vlgrp,
                                 le16_to_cpu(rx_desc->special) &
                                         IXGB_RX_DESC_SPECIAL_VLAN_MASK);
@@ -1921,9 +1914,12 @@ ixgb_clean_rx_irq(struct ixgb_adapter *adapter)
 #endif /* CONFIG_IXGB_NAPI */
                 netdev->last_rx = jiffies;
 
+rxdesc_done:
+                /* clean up descriptor, might be written over by hw */
                 rx_desc->status = 0;
                 buffer_info->skb = NULL;
 
+                /* use prefetched values */
                 rx_desc = next_rxd;
                 buffer_info = next_buffer;
         }
@@ -1959,8 +1955,8 @@ ixgb_alloc_rx_buffers(struct ixgb_adapter *adapter)
 
         num_group_tail_writes = IXGB_RX_BUFFER_WRITE;
 
-        /* leave one descriptor unused */
-        while(--cleancount > 0) {
+        /* leave three descriptors unused */
+        while(--cleancount > 2) {
                 rx_desc = IXGB_RX_DESC(*rx_ring, i);
 
                 skb = dev_alloc_skb(adapter->rx_buffer_len + NET_IP_ALIGN);
@@ -1987,6 +1983,10 @@ ixgb_alloc_rx_buffers(struct ixgb_adapter *adapter)
                                    PCI_DMA_FROMDEVICE);
 
                 rx_desc->buff_addr = cpu_to_le64(buffer_info->dma);
+                /* guarantee DD bit not set now before h/w gets descriptor
+                 * this is the rest of the workaround for h/w double 
+                 * writeback. */
+                rx_desc->status = 0;
 
                 if((i & ~(num_group_tail_writes- 1)) == i) {
                         /* Force memory writes to complete before letting h/w
@@ -2099,54 +2099,6 @@ ixgb_restore_vlan(struct ixgb_adapter *adapter)
         }
 }
 
-/**
- * ixgb_notify_reboot - handles OS notification of reboot event.
- * @param nb notifier block, unused
- * @param event Event being passed to driver to act upon
- * @param p A pointer to our net device
- **/
-static int
-ixgb_notify_reboot(struct notifier_block *nb, unsigned long event, void *p)
-{
-        struct pci_dev *pdev = NULL;
-
-        switch(event) {
-        case SYS_DOWN:
-        case SYS_HALT:
-        case SYS_POWER_OFF:
-                while ((pdev = pci_find_device(PCI_ANY_ID, PCI_ANY_ID, pdev))) {
-                        if (pci_dev_driver(pdev) == &ixgb_driver)
-                                ixgb_suspend(pdev, 3);
-                }
-        }
-        return NOTIFY_DONE;
-}
-
-/**
- * ixgb_suspend - driver suspend function called from notify.
- * @param pdev pci driver structure used for passing to
- * @param state power state to enter 
- **/
-static int
-ixgb_suspend(struct pci_dev *pdev, uint32_t state)
-{
-        struct net_device *netdev = pci_get_drvdata(pdev);
-        struct ixgb_adapter *adapter = netdev->priv;
-
-        netif_device_detach(netdev);
-
-        if(netif_running(netdev))
-                ixgb_down(adapter, TRUE);
-
-        pci_save_state(pdev);
-
-        state = (state > 0) ? 3 : 0;
-        pci_set_power_state(pdev, state);
-        msec_delay(200);
-
-        return 0;
-}
-
 #ifdef CONFIG_NET_POLL_CONTROLLER
 /*
  * Polling 'interrupt' - used by things like netconsole to send skbs
@@ -2157,6 +2109,7 @@ ixgb_suspend(struct pci_dev *pdev, uint32_t state)
 static void ixgb_netpoll(struct net_device *dev)
 {
         struct ixgb_adapter *adapter = dev->priv;
+
         disable_irq(adapter->pdev->irq);
         ixgb_intr(adapter->pdev->irq, dev, NULL);
         enable_irq(adapter->pdev->irq);
diff --git a/drivers/net/ixgb/ixgb_osdep.h b/drivers/net/ixgb/ixgb_osdep.h
index 9eba92891901..dba20481ee80 100644
--- a/drivers/net/ixgb/ixgb_osdep.h
+++ b/drivers/net/ixgb/ixgb_osdep.h
@@ -45,8 +45,7 @@
                                 /* Don't mdelay in interrupt context! */ \
                                 BUG(); \
                         } else { \
-                                set_current_state(TASK_UNINTERRUPTIBLE); \
-                                schedule_timeout((x * HZ)/1000 + 2); \
+                                msleep(x); \
                         } } while(0)
 #endif