]> err.no Git - linux-2.6/commitdiff
S2IO: Fixes for reset and link handling.
authorSivakumar Subramani <Sivakumar.Subramani@neterion.com>
Wed, 31 Jan 2007 18:30:49 +0000 (13:30 -0500)
committerJeff Garzik <jeff@garzik.org>
Mon, 5 Feb 2007 21:58:51 +0000 (16:58 -0500)
1. Fix for reset and link handling.
2. Allow for promiscuos mode and multicast state be maintained through
   ifconfig up and down.
3. Support to print adapter serial number.

Signed-off-by: Sivakumar Subramani <sivakumar.subramani@neterion.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
drivers/net/s2io-regs.h
drivers/net/s2io.c
drivers/net/s2io.h

index a914fef44309bd7a3cec59fe896696951f17907c..518e96d753719a1bbae9781aea13dadcdb8027d6 100644 (file)
@@ -300,6 +300,7 @@ typedef struct _XENA_dev_config {
        u64 gpio_control;
 #define GPIO_CTRL_GPIO_0               BIT(8)
        u64 misc_control;
+#define FAULT_BEHAVIOUR                        BIT(0)
 #define EXT_REQ_EN                     BIT(1)
 #define MISC_LINK_STABILITY_PRD(val)   vBIT(val,29,3)
 
index 063040bc62d7f017130eae22eb5a92ff399cc0e5..350723bd5eb813ceb59de73342faaa73b7588ceb 100644 (file)
@@ -1415,7 +1415,7 @@ static int init_nic(struct s2io_nic *nic)
 
        val64 = TTI_DATA2_MEM_TX_UFC_A(0x10) |
            TTI_DATA2_MEM_TX_UFC_B(0x20) |
-           TTI_DATA2_MEM_TX_UFC_C(0x70) | TTI_DATA2_MEM_TX_UFC_D(0x80);
+           TTI_DATA2_MEM_TX_UFC_C(0x40) | TTI_DATA2_MEM_TX_UFC_D(0x80);
        writeq(val64, &bar0->tti_data2_mem);
 
        val64 = TTI_CMD_MEM_WE | TTI_CMD_MEM_STROBE_NEW_CMD;
@@ -1611,7 +1611,8 @@ static int init_nic(struct s2io_nic *nic)
         * that does not start on an ADB to reduce disconnects.
         */
        if (nic->device_type == XFRAME_II_DEVICE) {
-               val64 = EXT_REQ_EN | MISC_LINK_STABILITY_PRD(3);
+               val64 = FAULT_BEHAVIOUR | EXT_REQ_EN |
+                       MISC_LINK_STABILITY_PRD(3);
                writeq(val64, &bar0->misc_control);
                val64 = readq(&bar0->pic_control2);
                val64 &= ~(BIT(13)|BIT(14)|BIT(15));
@@ -1878,41 +1879,36 @@ static void en_dis_able_nic_intrs(struct s2io_nic *nic, u16 mask, int flag)
        }
 }
 
-static int check_prc_pcc_state(u64 val64, int flag, int rev_id, int herc)
+/**
+ *  verify_pcc_quiescent- Checks for PCC quiescent state
+ *  Return: 1 If PCC is quiescence
+ *          0 If PCC is not quiescence
+ */
+static int verify_pcc_quiescent(nic_t *sp, int flag)
 {
-       int ret = 0;
+       int ret = 0, herc;
+       XENA_dev_config_t __iomem *bar0 = sp->bar0;
+       u64 val64 = readq(&bar0->adapter_status);
+       
+       herc = (sp->device_type == XFRAME_II_DEVICE);
 
        if (flag == FALSE) {
-               if ((!herc && (rev_id >= 4)) || herc) {
-                       if (!(val64 & ADAPTER_STATUS_RMAC_PCC_IDLE) &&
-                           ((val64 & ADAPTER_STATUS_RC_PRC_QUIESCENT) ==
-                            ADAPTER_STATUS_RC_PRC_QUIESCENT)) {
+               if ((!herc && (get_xena_rev_id(sp->pdev) >= 4)) || herc) {
+                       if (!(val64 & ADAPTER_STATUS_RMAC_PCC_IDLE))
                                ret = 1;
-                       }
-               }else {
-                       if (!(val64 & ADAPTER_STATUS_RMAC_PCC_FOUR_IDLE) &&
-                           ((val64 & ADAPTER_STATUS_RC_PRC_QUIESCENT) ==
-                            ADAPTER_STATUS_RC_PRC_QUIESCENT)) {
+               } else {
+                       if (!(val64 & ADAPTER_STATUS_RMAC_PCC_FOUR_IDLE))
                                ret = 1;
-                       }
                }
        } else {
-               if ((!herc && (rev_id >= 4)) || herc) {
+               if ((!herc && (get_xena_rev_id(sp->pdev) >= 4)) || herc) {
                        if (((val64 & ADAPTER_STATUS_RMAC_PCC_IDLE) ==
-                            ADAPTER_STATUS_RMAC_PCC_IDLE) &&
-                           (!(val64 & ADAPTER_STATUS_RC_PRC_QUIESCENT) ||
-                            ((val64 & ADAPTER_STATUS_RC_PRC_QUIESCENT) ==
-                             ADAPTER_STATUS_RC_PRC_QUIESCENT))) {
+                            ADAPTER_STATUS_RMAC_PCC_IDLE))
                                ret = 1;
-                       }
                } else {
                        if (((val64 & ADAPTER_STATUS_RMAC_PCC_FOUR_IDLE) ==
-                            ADAPTER_STATUS_RMAC_PCC_FOUR_IDLE) &&
-                           (!(val64 & ADAPTER_STATUS_RC_PRC_QUIESCENT) ||
-                            ((val64 & ADAPTER_STATUS_RC_PRC_QUIESCENT) ==
-                             ADAPTER_STATUS_RC_PRC_QUIESCENT))) {
+                            ADAPTER_STATUS_RMAC_PCC_FOUR_IDLE))
                                ret = 1;
-                       }
                }
        }
 
@@ -1920,9 +1916,6 @@ static int check_prc_pcc_state(u64 val64, int flag, int rev_id, int herc)
 }
 /**
  *  verify_xena_quiescence - Checks whether the H/W is ready
- *  @val64 :  Value read from adapter status register.
- *  @flag : indicates if the adapter enable bit was ever written once
- *  before.
  *  Description: Returns whether the H/W is ready to go or not. Depending
  *  on whether adapter enable bit was written or not the comparison
  *  differs and the calling function passes the input argument flag to
@@ -1931,24 +1924,63 @@ static int check_prc_pcc_state(u64 val64, int flag, int rev_id, int herc)
  *          0 If Xena is not quiescence
  */
 
-static int verify_xena_quiescence(nic_t *sp, u64 val64, int flag)
+static int verify_xena_quiescence(nic_t *sp)
 {
-       int ret = 0, herc;
-       u64 tmp64 = ~((u64) val64);
-       int rev_id = get_xena_rev_id(sp->pdev);
+       int  mode;
+       XENA_dev_config_t __iomem *bar0 = sp->bar0;
+       u64 val64 = readq(&bar0->adapter_status);
+       mode = s2io_verify_pci_mode(sp);
 
-       herc = (sp->device_type == XFRAME_II_DEVICE);
-       if (!
-           (tmp64 &
-            (ADAPTER_STATUS_TDMA_READY | ADAPTER_STATUS_RDMA_READY |
-             ADAPTER_STATUS_PFC_READY | ADAPTER_STATUS_TMAC_BUF_EMPTY |
-             ADAPTER_STATUS_PIC_QUIESCENT | ADAPTER_STATUS_MC_DRAM_READY |
-             ADAPTER_STATUS_MC_QUEUES_READY | ADAPTER_STATUS_M_PLL_LOCK |
-             ADAPTER_STATUS_P_PLL_LOCK))) {
-               ret = check_prc_pcc_state(val64, flag, rev_id, herc);
+       if (!(val64 & ADAPTER_STATUS_TDMA_READY)) {
+               DBG_PRINT(ERR_DBG, "%s", "TDMA is not ready!");
+               return 0;
+       }
+       if (!(val64 & ADAPTER_STATUS_RDMA_READY)) {
+       DBG_PRINT(ERR_DBG, "%s", "RDMA is not ready!");
+               return 0;
+       }
+       if (!(val64 & ADAPTER_STATUS_PFC_READY)) {
+               DBG_PRINT(ERR_DBG, "%s", "PFC is not ready!");
+               return 0;
+       }
+       if (!(val64 & ADAPTER_STATUS_TMAC_BUF_EMPTY)) {
+               DBG_PRINT(ERR_DBG, "%s", "TMAC BUF is not empty!");
+               return 0;
+       }
+       if (!(val64 & ADAPTER_STATUS_PIC_QUIESCENT)) {
+               DBG_PRINT(ERR_DBG, "%s", "PIC is not QUIESCENT!");
+               return 0;
+       }
+       if (!(val64 & ADAPTER_STATUS_MC_DRAM_READY)) {
+               DBG_PRINT(ERR_DBG, "%s", "MC_DRAM is not ready!");
+               return 0;
+       }
+       if (!(val64 & ADAPTER_STATUS_MC_QUEUES_READY)) {
+               DBG_PRINT(ERR_DBG, "%s", "MC_QUEUES is not ready!");
+               return 0;
+       }
+       if (!(val64 & ADAPTER_STATUS_M_PLL_LOCK)) {
+               DBG_PRINT(ERR_DBG, "%s", "M_PLL is not locked!");
+               return 0;
        }
 
-       return ret;
+       /*
+        * In PCI 33 mode, the P_PLL is not used, and therefore,
+        * the the P_PLL_LOCK bit in the adapter_status register will
+        * not be asserted.
+        */
+       if (!(val64 & ADAPTER_STATUS_P_PLL_LOCK) &&
+               sp->device_type == XFRAME_II_DEVICE && mode !=
+               PCI_MODE_PCI_33) {
+               DBG_PRINT(ERR_DBG, "%s", "P_PLL is not locked!");
+               return 0;
+       }
+       if (!((val64 & ADAPTER_STATUS_RC_PRC_QUIESCENT) ==
+                       ADAPTER_STATUS_RC_PRC_QUIESCENT)) {
+               DBG_PRINT(ERR_DBG, "%s", "RC_PRC is not QUIESCENT!");
+               return 0;
+       }
+       return 1;
 }
 
 /**
@@ -2053,7 +2085,7 @@ static int start_nic(struct s2io_nic *nic)
         * it.
         */
        val64 = readq(&bar0->adapter_status);
-       if (!verify_xena_quiescence(nic, val64, nic->device_enabled_once)) {
+       if (!verify_xena_quiescence(nic)) {
                DBG_PRINT(ERR_DBG, "%s: device is not ready, ", dev->name);
                DBG_PRINT(ERR_DBG, "Adapter status reads: 0x%llx\n",
                          (unsigned long long) val64);
@@ -2577,7 +2609,6 @@ static int s2io_poll(struct net_device *dev, int *budget)
        mac_info_t *mac_control;
        struct config_param *config;
        XENA_dev_config_t __iomem *bar0 = nic->bar0;
-       u64 val64 = 0xFFFFFFFFFFFFFFFFULL;
        int i;
 
        atomic_inc(&nic->isr_cnt);
@@ -2589,8 +2620,8 @@ static int s2io_poll(struct net_device *dev, int *budget)
                nic->pkts_to_process = dev->quota;
        org_pkts_to_process = nic->pkts_to_process;
 
-       writeq(val64, &bar0->rx_traffic_int);
-       val64 = readl(&bar0->rx_traffic_int);
+       writeq(S2IO_MINUS_ONE, &bar0->rx_traffic_int);
+       readl(&bar0->rx_traffic_int);
 
        for (i = 0; i < config->rx_ring_num; i++) {
                rx_intr_handler(&mac_control->rings[i]);
@@ -2616,7 +2647,7 @@ static int s2io_poll(struct net_device *dev, int *budget)
        }
        /* Re enable the Rx interrupts. */
        writeq(0x0, &bar0->rx_traffic_mask);
-       val64 = readl(&bar0->rx_traffic_mask);
+       readl(&bar0->rx_traffic_mask);
        atomic_dec(&nic->isr_cnt);
        return 0;
 
@@ -2851,11 +2882,10 @@ static void tx_intr_handler(fifo_info_t *fifo_data)
                        }
                        if ((err >> 48) == 0xA) {
                                DBG_PRINT(TX_DBG, "TxD returned due \
-to loss of link\n");
+                                               to loss of link\n");
                        }
                        else {
-                               DBG_PRINT(ERR_DBG, "***TxD error \
-%llx\n", err);
+                               DBG_PRINT(ERR_DBG, "***TxD error %llx\n", err);
                        }
                }
 
@@ -3294,6 +3324,25 @@ static int wait_for_cmd_complete(void __iomem *addr, u64 busy_bit)
        }
        return ret;
 }
+/*
+ * check_pci_device_id - Checks if the device id is supported
+ * @id : device id
+ * Description: Function to check if the pci device id is supported by driver.
+ * Return value: Actual device id if supported else PCI_ANY_ID
+ */
+static u16 check_pci_device_id(u16 id)
+{
+       switch (id) {
+       case PCI_DEVICE_ID_HERC_WIN:
+       case PCI_DEVICE_ID_HERC_UNI:
+               return XFRAME_II_DEVICE;
+       case PCI_DEVICE_ID_S2IO_UNI:
+       case PCI_DEVICE_ID_S2IO_WIN:
+               return XFRAME_I_DEVICE;
+       default:
+               return PCI_ANY_ID;
+       }
+}
 
 /**
  *  s2io_reset - Resets the card.
@@ -3310,37 +3359,52 @@ static void s2io_reset(nic_t * sp)
        XENA_dev_config_t __iomem *bar0 = sp->bar0;
        u64 val64;
        u16 subid, pci_cmd;
+       int i;
+       u16 val16;
+       DBG_PRINT(INIT_DBG,"%s - Resetting XFrame card %s\n",
+                       __FUNCTION__, sp->dev->name);
 
        /* Back up  the PCI-X CMD reg, dont want to lose MMRBC, OST settings */
        pci_read_config_word(sp->pdev, PCIX_COMMAND_REGISTER, &(pci_cmd));
 
+       if (sp->device_type == XFRAME_II_DEVICE) {
+               int ret;
+               ret = pci_set_power_state(sp->pdev, 3);
+               if (!ret)
+                       ret = pci_set_power_state(sp->pdev, 0);
+               else {
+                       DBG_PRINT(ERR_DBG,"%s PME based SW_Reset failed!\n",
+                                       __FUNCTION__);
+                       goto old_way;
+               }
+               msleep(20);
+               goto new_way;
+       }
+old_way:
        val64 = SW_RESET_ALL;
        writeq(val64, &bar0->sw_reset);
-
-       /*
-        * At this stage, if the PCI write is indeed completed, the
-        * card is reset and so is the PCI Config space of the device.
-        * So a read cannot be issued at this stage on any of the
-        * registers to ensure the write into "sw_reset" register
-        * has gone through.
-        * Question: Is there any system call that will explicitly force
-        * all the write commands still pending on the bus to be pushed
-        * through?
-        * As of now I'am just giving a 250ms delay and hoping that the
-        * PCI write to sw_reset register is done by this time.
-        */
-       msleep(250);
+new_way:
        if (strstr(sp->product_name, "CX4")) {
                msleep(750);
        }
+       msleep(250);
+       for (i = 0; i < S2IO_MAX_PCI_CONFIG_SPACE_REINIT; i++) {
 
-       /* Restore the PCI state saved during initialization. */
-       pci_restore_state(sp->pdev);
-       pci_write_config_word(sp->pdev, PCIX_COMMAND_REGISTER,
-                                    pci_cmd);
-       s2io_init_pci(sp);
+               /* Restore the PCI state saved during initialization. */
+               pci_restore_state(sp->pdev);
+               pci_read_config_word(sp->pdev, 0x2, &val16);
+               if (check_pci_device_id(val16) != (u16)PCI_ANY_ID)
+                       break;
+               msleep(200);
+       }
 
-       msleep(250);
+       if (check_pci_device_id(val16) == (u16)PCI_ANY_ID) {
+               DBG_PRINT(ERR_DBG,"%s SW_Reset failed!\n", __FUNCTION__);
+       }
+
+       pci_write_config_word(sp->pdev, PCIX_COMMAND_REGISTER, pci_cmd);
+
+       s2io_init_pci(sp);
 
        /* Set swapper to enable I/O register access */
        s2io_set_swapper(sp);
@@ -4104,39 +4168,33 @@ static void s2io_txpic_intr_handle(nic_t *sp)
                }
                else if (val64 & GPIO_INT_REG_LINK_UP) {
                        val64 = readq(&bar0->adapter_status);
-                       if (verify_xena_quiescence(sp, val64,
-                                                  sp->device_enabled_once)) {
                                /* Enable Adapter */
-                               val64 = readq(&bar0->adapter_control);
-                               val64 |= ADAPTER_CNTL_EN;
-                               writeq(val64, &bar0->adapter_control);
-                               val64 |= ADAPTER_LED_ON;
-                               writeq(val64, &bar0->adapter_control);
-                               if (!sp->device_enabled_once)
-                                       sp->device_enabled_once = 1;
+                       val64 = readq(&bar0->adapter_control);
+                       val64 |= ADAPTER_CNTL_EN;
+                       writeq(val64, &bar0->adapter_control);
+                       val64 |= ADAPTER_LED_ON;
+                       writeq(val64, &bar0->adapter_control);
+                       if (!sp->device_enabled_once)
+                               sp->device_enabled_once = 1;
 
-                               s2io_link(sp, LINK_UP);
-                               /*
-                                * unmask link down interrupt and mask link-up
-                                * intr
-                                */
-                               val64 = readq(&bar0->gpio_int_mask);
-                               val64 &= ~GPIO_INT_MASK_LINK_DOWN;
-                               val64 |= GPIO_INT_MASK_LINK_UP;
-                               writeq(val64, &bar0->gpio_int_mask);
+                       s2io_link(sp, LINK_UP);
+                       /*
+                        * unmask link down interrupt and mask link-up
+                        * intr
+                        */
+                       val64 = readq(&bar0->gpio_int_mask);
+                       val64 &= ~GPIO_INT_MASK_LINK_DOWN;
+                       val64 |= GPIO_INT_MASK_LINK_UP;
+                       writeq(val64, &bar0->gpio_int_mask);
 
-                       }
                }else if (val64 & GPIO_INT_REG_LINK_DOWN) {
                        val64 = readq(&bar0->adapter_status);
-                       if (verify_xena_quiescence(sp, val64,
-                                                  sp->device_enabled_once)) {
-                               s2io_link(sp, LINK_DOWN);
-                               /* Link is down so unmaks link up interrupt */
-                               val64 = readq(&bar0->gpio_int_mask);
-                               val64 &= ~GPIO_INT_MASK_LINK_UP;
-                               val64 |= GPIO_INT_MASK_LINK_DOWN;
-                               writeq(val64, &bar0->gpio_int_mask);
-                       }
+                       s2io_link(sp, LINK_DOWN);
+                       /* Link is down so unmaks link up interrupt */
+                       val64 = readq(&bar0->gpio_int_mask);
+                       val64 &= ~GPIO_INT_MASK_LINK_UP;
+                       val64 |= GPIO_INT_MASK_LINK_DOWN;
+                       writeq(val64, &bar0->gpio_int_mask);
                }
        }
        val64 = readq(&bar0->gpio_int_mask);
@@ -4161,7 +4219,7 @@ static irqreturn_t s2io_isr(int irq, void *dev_id)
        nic_t *sp = dev->priv;
        XENA_dev_config_t __iomem *bar0 = sp->bar0;
        int i;
-       u64 reason = 0, val64, org_mask;
+       u64 reason = 0;
        mac_info_t *mac_control;
        struct config_param *config;
 
@@ -4180,22 +4238,24 @@ static irqreturn_t s2io_isr(int irq, void *dev_id)
        reason = readq(&bar0->general_int_status);
 
        if (!reason) {
-               /* The interrupt was not raised by Xena. */
+               /* The interrupt was not raised by us. */
+               atomic_dec(&sp->isr_cnt);
+               return IRQ_NONE;
+       }
+       else if (unlikely(reason == S2IO_MINUS_ONE) ) {
+               /* Disable device and get out */
                atomic_dec(&sp->isr_cnt);
                return IRQ_NONE;
        }
-
-       val64 = 0xFFFFFFFFFFFFFFFFULL;
-       /* Store current mask before masking all interrupts */
-       org_mask = readq(&bar0->general_int_mask);
-       writeq(val64, &bar0->general_int_mask);
 
        if (napi) {
                if (reason & GEN_INTR_RXTRAFFIC) {
-                       if (netif_rx_schedule_prep(dev)) {
-                               writeq(val64, &bar0->rx_traffic_mask);
+                       if ( likely ( netif_rx_schedule_prep(dev)) ) {
                                __netif_rx_schedule(dev);
+                               writeq(S2IO_MINUS_ONE, &bar0->rx_traffic_mask);
                        }
+                       else
+                               writeq(S2IO_MINUS_ONE, &bar0->rx_traffic_int);
                }
        } else {
                /*
@@ -4205,7 +4265,9 @@ static irqreturn_t s2io_isr(int irq, void *dev_id)
                 * will ensure that the actual interrupt causing bit get's
                 * cleared and hence a read can be avoided.
                 */
-               writeq(val64, &bar0->rx_traffic_int);
+               if (reason & GEN_INTR_RXTRAFFIC)
+                       writeq(S2IO_MINUS_ONE, &bar0->rx_traffic_int);
+
                for (i = 0; i < config->rx_ring_num; i++) {
                        rx_intr_handler(&mac_control->rings[i]);
                }
@@ -4216,7 +4278,8 @@ static irqreturn_t s2io_isr(int irq, void *dev_id)
         * will ensure that the actual interrupt causing bit get's
         * cleared and hence a read can be avoided.
         */
-       writeq(val64, &bar0->tx_traffic_int);
+       if (reason & GEN_INTR_TXTRAFFIC)
+               writeq(S2IO_MINUS_ONE, &bar0->tx_traffic_int);
 
        for (i = 0; i < config->tx_fifo_num; i++)
                tx_intr_handler(&mac_control->fifos[i]);
@@ -4912,6 +4975,7 @@ static void s2io_vpd_read(nic_t *nic)
                strcpy(nic->product_name, "Xframe I 10GbE network adapter");
                vpd_addr = 0x50;
        }
+       strcpy(nic->serial_num, "NOT AVAILABLE");
 
        vpd_data = kmalloc(256, GFP_KERNEL);
        if (!vpd_data)
@@ -4935,7 +4999,22 @@ static void s2io_vpd_read(nic_t *nic)
                pci_read_config_dword(nic->pdev,  (vpd_addr + 4),
                                      (u32 *)&vpd_data[i]);
        }
-       if ((!fail) && (vpd_data[1] < VPD_PRODUCT_NAME_LEN)) {
+
+       if(!fail) {
+               /* read serial number of adapter */
+               for (cnt = 0; cnt < 256; cnt++) {
+               if ((vpd_data[cnt] == 'S') &&
+                       (vpd_data[cnt+1] == 'N') &&
+                       (vpd_data[cnt+2] < VPD_STRING_LEN)) {
+                               memset(nic->serial_num, 0, VPD_STRING_LEN);
+                               memcpy(nic->serial_num, &vpd_data[cnt + 3],
+                                       vpd_data[cnt+2]);
+                               break;
+                       }
+               }
+       }
+
+       if ((!fail) && (vpd_data[1] < VPD_STRING_LEN)) {
                memset(nic->product_name, 0, vpd_data[1]);
                memcpy(nic->product_name, &vpd_data[3], vpd_data[1]);
        }
@@ -5890,50 +5969,45 @@ static void s2io_set_link(struct work_struct *work)
        }
 
        val64 = readq(&bar0->adapter_status);
-       if (verify_xena_quiescence(nic, val64, nic->device_enabled_once)) {
-               if (LINK_IS_UP(val64)) {
-                       val64 = readq(&bar0->adapter_control);
-                       val64 |= ADAPTER_CNTL_EN;
-                       writeq(val64, &bar0->adapter_control);
-                       if (CARDS_WITH_FAULTY_LINK_INDICATORS(nic->device_type,
-                                                            subid)) {
-                               val64 = readq(&bar0->gpio_control);
-                               val64 |= GPIO_CTRL_GPIO_0;
-                               writeq(val64, &bar0->gpio_control);
-                               val64 = readq(&bar0->gpio_control);
-                       } else {
-                               val64 |= ADAPTER_LED_ON;
+       if (LINK_IS_UP(val64)) {
+               if (!(readq(&bar0->adapter_control) & ADAPTER_CNTL_EN)) {
+                       if (verify_xena_quiescence(nic)) {
+                               val64 = readq(&bar0->adapter_control);
+                               val64 |= ADAPTER_CNTL_EN;
                                writeq(val64, &bar0->adapter_control);
-                       }
-                       if (s2io_link_fault_indication(nic) ==
-                                               MAC_RMAC_ERR_TIMER) {
-                               val64 = readq(&bar0->adapter_status);
-                               if (!LINK_IS_UP(val64)) {
-                                       DBG_PRINT(ERR_DBG, "%s:", dev->name);
-                                       DBG_PRINT(ERR_DBG, " Link down");
-                                       DBG_PRINT(ERR_DBG, "after ");
-                                       DBG_PRINT(ERR_DBG, "enabling ");
-                                       DBG_PRINT(ERR_DBG, "device \n");
+                               if (CARDS_WITH_FAULTY_LINK_INDICATORS(
+                                       nic->device_type, subid)) {
+                                       val64 = readq(&bar0->gpio_control);
+                                       val64 |= GPIO_CTRL_GPIO_0;
+                                       writeq(val64, &bar0->gpio_control);
+                                       val64 = readq(&bar0->gpio_control);
+                               } else {
+                                       val64 |= ADAPTER_LED_ON;
+                                       writeq(val64, &bar0->adapter_control);
                                }
-                       }
-                       if (nic->device_enabled_once == FALSE) {
                                nic->device_enabled_once = TRUE;
+                       } else {
+                               DBG_PRINT(ERR_DBG, "%s: Error: ", dev->name);
+                               DBG_PRINT(ERR_DBG, "device is not Quiescent\n");
+                               netif_stop_queue(dev);
                        }
+               }
+               val64 = readq(&bar0->adapter_status);
+               if (!LINK_IS_UP(val64)) {
+                       DBG_PRINT(ERR_DBG, "%s:", dev->name);
+                       DBG_PRINT(ERR_DBG, " Link down after enabling ");
+                       DBG_PRINT(ERR_DBG, "device \n");
+               } else
                        s2io_link(nic, LINK_UP);
-               } else {
-                       if (CARDS_WITH_FAULTY_LINK_INDICATORS(nic->device_type,
-                                                             subid)) {
-                               val64 = readq(&bar0->gpio_control);
-                               val64 &= ~GPIO_CTRL_GPIO_0;
-                               writeq(val64, &bar0->gpio_control);
-                               val64 = readq(&bar0->gpio_control);
-                       }
-                       s2io_link(nic, LINK_DOWN);
+       } else {
+               if (CARDS_WITH_FAULTY_LINK_INDICATORS(nic->device_type,
+                                                     subid)) {
+                       val64 = readq(&bar0->gpio_control);
+                       val64 &= ~GPIO_CTRL_GPIO_0;
+                       writeq(val64, &bar0->gpio_control);
+                       val64 = readq(&bar0->gpio_control);
                }
-       } else {                /* NIC is not Quiescent. */
-               DBG_PRINT(ERR_DBG, "%s: Error: ", dev->name);
-               DBG_PRINT(ERR_DBG, "device is not Quiescent\n");
-               netif_stop_queue(dev);
+               s2io_link(nic, LINK_DOWN);
        }
        clear_bit(0, &(nic->link_state));
 }
@@ -5982,7 +6056,7 @@ static int set_rxd_buffer_pointer(nic_t *sp, RxD_t *rxdp, buffAdd_t *ba,
                        *skb = dev_alloc_skb(size);
                        if (!(*skb)) {
                                DBG_PRINT(ERR_DBG, "%s: dev_alloc_skb failed\n",
-                                         dev->name);
+                                       dev->name);
                                return -ENOMEM;
                        }
                        ((RxD3_t*)rxdp)->Buffer2_ptr = *temp2 =
@@ -6252,7 +6326,8 @@ static void s2io_card_down(nic_t * sp)
                rxd_owner_bit_reset(sp);
 
                val64 = readq(&bar0->adapter_status);
-               if (verify_xena_quiescence(sp, val64, sp->device_enabled_once)) {
+               if (verify_xena_quiescence(sp)) {
+                       if(verify_pcc_quiescent(sp, sp->device_enabled_once))
                        break;
                }
 
@@ -6315,6 +6390,13 @@ static int s2io_card_up(nic_t * sp)
                DBG_PRINT(INFO_DBG, "Buf in ring:%d is %d:\n", i,
                          atomic_read(&sp->rx_bufs_left[i]));
        }
+       /* Maintain the state prior to the open */
+       if (sp->promisc_flg)
+               sp->promisc_flg = 0;
+       if (sp->m_cast_flg) {
+               sp->m_cast_flg = 0;
+               sp->all_multi_pos= 0;
+       }
 
        /* Setting its receive mode */
        s2io_set_multicast(dev);
@@ -6914,7 +6996,7 @@ s2io_init_nic(struct pci_dev *pdev, const struct pci_device_id *pre)
        sp->bar0 = ioremap(pci_resource_start(pdev, 0),
                                     pci_resource_len(pdev, 0));
        if (!sp->bar0) {
-               DBG_PRINT(ERR_DBG, "%s: S2IO: cannot remap io mem1\n",
+               DBG_PRINT(ERR_DBG, "%s: Neterion: cannot remap io mem1\n",
                          dev->name);
                ret = -ENOMEM;
                goto bar0_remap_failed;
@@ -6923,7 +7005,7 @@ s2io_init_nic(struct pci_dev *pdev, const struct pci_device_id *pre)
        sp->bar1 = ioremap(pci_resource_start(pdev, 2),
                                     pci_resource_len(pdev, 2));
        if (!sp->bar1) {
-               DBG_PRINT(ERR_DBG, "%s: S2IO: cannot remap io mem2\n",
+               DBG_PRINT(ERR_DBG, "%s: Neterion: cannot remap io mem2\n",
                          dev->name);
                ret = -ENOMEM;
                goto bar1_remap_failed;
@@ -7081,13 +7163,14 @@ s2io_init_nic(struct pci_dev *pdev, const struct pci_device_id *pre)
        DBG_PRINT(ERR_DBG, "%s: Driver version %s\n", dev->name,
                  s2io_driver_version);
        DBG_PRINT(ERR_DBG, "%s: MAC ADDR: "
-                         "%02x:%02x:%02x:%02x:%02x:%02x\n", dev->name,
+                         "%02x:%02x:%02x:%02x:%02x:%02x", dev->name,
                          sp->def_mac_addr[0].mac_addr[0],
                          sp->def_mac_addr[0].mac_addr[1],
                          sp->def_mac_addr[0].mac_addr[2],
                          sp->def_mac_addr[0].mac_addr[3],
                          sp->def_mac_addr[0].mac_addr[4],
                          sp->def_mac_addr[0].mac_addr[5]);
+       DBG_PRINT(ERR_DBG, "SERIAL NUMBER: %s\n", sp->serial_num);
        if (sp->device_type & XFRAME_II_DEVICE) {
                mode = s2io_print_pci_mode(sp);
                if (mode < 0) {
@@ -7200,7 +7283,6 @@ static void __devexit s2io_rem_nic(struct pci_dev *pdev)
        free_shared_mem(sp);
        iounmap(sp->bar0);
        iounmap(sp->bar1);
-       pci_disable_device(pdev);
        if (sp->intr_type != MSI_X)
                pci_release_regions(pdev);
        else {
@@ -7211,6 +7293,7 @@ static void __devexit s2io_rem_nic(struct pci_dev *pdev)
        }
        pci_set_drvdata(pdev, NULL);
        free_netdev(dev);
+       pci_disable_device(pdev);
 }
 
 /**
index 577fa3ad214e6a9d247f3b3e562df671e24eb75d..8114f4b80e8a33732dc82ee47abfdca1de7570fe 100644 (file)
@@ -30,6 +30,8 @@
 #undef SUCCESS
 #define SUCCESS 0
 #define FAILURE -1
+#define S2IO_MINUS_ONE 0xFFFFFFFFFFFFFFFFULL
+#define S2IO_MAX_PCI_CONFIG_SPACE_REINIT 100
 
 #define CHECKBIT(value, nbit) (value & (1 << nbit))
 
@@ -537,9 +539,9 @@ typedef struct _RxD_block {
 
 #define SIZE_OF_BLOCK  4096
 
-#define RXD_MODE_1     0
-#define RXD_MODE_3A    1
-#define RXD_MODE_3B    2
+#define RXD_MODE_1     0 /* One Buffer mode */
+#define RXD_MODE_3A    1 /* Three Buffer mode */
+#define RXD_MODE_3B    2 /* Two Buffer mode */
 
 /* Structure to hold virtual addresses of Buf0 and Buf1 in
  * 2buf mode. */
@@ -849,8 +851,9 @@ struct s2io_nic {
        spinlock_t      rx_lock;
        atomic_t        isr_cnt;
        u64 *ufo_in_band_v;
-#define VPD_PRODUCT_NAME_LEN 50
-       u8  product_name[VPD_PRODUCT_NAME_LEN];
+#define VPD_STRING_LEN 80
+       u8  product_name[VPD_STRING_LEN];
+       u8  serial_num[VPD_STRING_LEN];
 };
 
 #define RESET_ERROR 1;
@@ -974,11 +977,13 @@ static void tx_intr_handler(fifo_info_t *fifo_data);
 static void alarm_intr_handler(struct s2io_nic *sp);
 
 static int s2io_starter(void);
+static void s2io_closer(void);
 static void s2io_tx_watchdog(struct net_device *dev);
 static void s2io_tasklet(unsigned long dev_addr);
 static void s2io_set_multicast(struct net_device *dev);
 static int rx_osm_handler(ring_info_t *ring_data, RxD_t * rxdp);
 static void s2io_link(nic_t * sp, int link);
+static void s2io_reset(nic_t * sp);
 static int s2io_poll(struct net_device *dev, int *budget);
 static void s2io_init_pci(nic_t * sp);
 static int s2io_set_mac_addr(struct net_device *dev, u8 * addr);
@@ -990,13 +995,17 @@ s2io_msix_ring_handle(int irq, void *dev_id);
 static irqreturn_t
 s2io_msix_fifo_handle(int irq, void *dev_id);
 static irqreturn_t s2io_isr(int irq, void *dev_id);
-static int verify_xena_quiescence(nic_t *sp, u64 val64, int flag);
+static int verify_xena_quiescence(nic_t *sp);
 static const struct ethtool_ops netdev_ethtool_ops;
 static void s2io_set_link(struct work_struct *work);
 static int s2io_set_swapper(nic_t * sp);
 static void s2io_card_down(nic_t *nic);
 static int s2io_card_up(nic_t *nic);
 static int get_xena_rev_id(struct pci_dev *pdev);
+static int wait_for_cmd_complete(void *addr, u64 busy_bit);
+static int s2io_add_isr(nic_t * sp);
+static void s2io_rem_isr(nic_t * sp);
+
 static void restore_xmsi_data(nic_t *nic);
 
 static int s2io_club_tcp_session(u8 *buffer, u8 **tcp, u32 *tcp_len, lro_t **lro, RxD_t *rxdp, nic_t *sp);