3 files changed, 88 insertions, 28 deletions

diff --git a/drivers/net/s2io-regs.h b/drivers/net/s2io-regs.h
index 2234a8f05eb2..7cefe5507b9e 100644
--- a/drivers/net/s2io-regs.h
+++ b/drivers/net/s2io-regs.h
@@ -1,5 +1,5 @@
 /************************************************************************
- * regs.h: A Linux PCI-X Ethernet driver for S2IO 10GbE Server NIC
+ * regs.h: A Linux PCI-X Ethernet driver for Neterion 10GbE Server NIC
  * Copyright(c) 2002-2005 Neterion Inc.
 
  * This software may be used and distributed according to the terms of
@@ -713,13 +713,16 @@ typedef struct _XENA_dev_config {
         u64 mc_err_reg;
 #define MC_ERR_REG_ECC_DB_ERR_L            BIT(14)
 #define MC_ERR_REG_ECC_DB_ERR_U            BIT(15)
+#define MC_ERR_REG_MIRI_ECC_DB_ERR_0       BIT(18)
+#define MC_ERR_REG_MIRI_ECC_DB_ERR_1       BIT(20)
 #define MC_ERR_REG_MIRI_CRI_ERR_0          BIT(22)
 #define MC_ERR_REG_MIRI_CRI_ERR_1          BIT(23)
 #define MC_ERR_REG_SM_ERR                  BIT(31)
-#define MC_ERR_REG_ECC_ALL_SNG             (BIT(6) | \
-                                        BIT(7) | BIT(17) | BIT(19))
-#define MC_ERR_REG_ECC_ALL_DBL             (BIT(14) | \
-                                        BIT(15) | BIT(18) | BIT(20))
+#define MC_ERR_REG_ECC_ALL_SNG             (BIT(2) | BIT(3) | BIT(4) | BIT(5) |\
+                                            BIT(6) | BIT(7) | BIT(17) | BIT(19))
+#define MC_ERR_REG_ECC_ALL_DBL             (BIT(10) | BIT(11) | BIT(12) |\
+                                            BIT(13) | BIT(14) | BIT(15) |\
+                                            BIT(18) | BIT(20))
         u64 mc_err_mask;
         u64 mc_err_alarm;
 
diff --git a/drivers/net/s2io.c b/drivers/net/s2io.c
index 5dda043bd9d7..7cfe1669ae9d 100644
--- a/drivers/net/s2io.c
+++ b/drivers/net/s2io.c
@@ -1,5 +1,5 @@
 /************************************************************************
- * s2io.c: A Linux PCI-X Ethernet driver for S2IO 10GbE Server NIC
+ * s2io.c: A Linux PCI-X Ethernet driver for Neterion 10GbE Server NIC
  * Copyright(c) 2002-2005 Neterion Inc.
 
  * This software may be used and distributed according to the terms of
@@ -28,7 +28,7 @@
  * explaination of all the variables.
  * rx_ring_num : This can be used to program the number of receive rings used
  * in the driver.
- * rx_ring_len: This defines the number of descriptors each ring can have. This
+ * rx_ring_sz: This defines the number of descriptors each ring can have. This
  * is also an array of size 8.
  * tx_fifo_num: This defines the number of Tx FIFOs thats used int the driver.
  * tx_fifo_len: This too is an array of 8. Each element defines the number of
@@ -67,7 +67,7 @@
 
 /* S2io Driver name & version. */
 static char s2io_driver_name[] = "Neterion";
-static char s2io_driver_version[] = "Version 2.0.3.1";
+static char s2io_driver_version[] = "Version 2.0.8.1";
 
 static inline int RXD_IS_UP2DT(RxD_t *rxdp)
 {
@@ -404,7 +404,7 @@ static int init_shared_mem(struct s2io_nic *nic)
                     config->tx_cfg[i].fifo_len - 1;
                 mac_control->fifos[i].fifo_no = i;
                 mac_control->fifos[i].nic = nic;
-                mac_control->fifos[i].max_txds = MAX_SKB_FRAGS;
+                mac_control->fifos[i].max_txds = MAX_SKB_FRAGS + 1;
 
                 for (j = 0; j < page_num; j++) {
                         int k = 0;
@@ -418,6 +418,26 @@ static int init_shared_mem(struct s2io_nic *nic)
                                 DBG_PRINT(ERR_DBG, "failed for TxDL\n");
                                 return -ENOMEM;
                         }
+                        /* If we got a zero DMA address(can happen on
+                         * certain platforms like PPC), reallocate.
+                         * Store virtual address of page we don't want,
+                         * to be freed later.
+                         */
+                        if (!tmp_p) {
+                                mac_control->zerodma_virt_addr = tmp_v;
+                                DBG_PRINT(INIT_DBG, 
+                                "%s: Zero DMA address for TxDL. ", dev->name);
+                                DBG_PRINT(INIT_DBG, 
+                                "Virtual address %llx\n", (u64)tmp_v);
+                                tmp_v = pci_alloc_consistent(nic->pdev,
+                                                     PAGE_SIZE, &tmp_p);
+                                if (!tmp_v) {
+                                        DBG_PRINT(ERR_DBG,
+                                          "pci_alloc_consistent ");
+                                        DBG_PRINT(ERR_DBG, "failed for TxDL\n");
+                                        return -ENOMEM;
+                                }
+                        }
                         while (k < lst_per_page) {
                                 int l = (j * lst_per_page) + k;
                                 if (l == config->tx_cfg[i].fifo_len)
@@ -600,7 +620,7 @@ static void free_shared_mem(struct s2io_nic *nic)
         mac_info_t *mac_control;
         struct config_param *config;
         int lst_size, lst_per_page;
-
+        struct net_device *dev = nic->dev;
 
         if (!nic)
                 return;
@@ -616,9 +636,10 @@ static void free_shared_mem(struct s2io_nic *nic)
                                                 lst_per_page);
                 for (j = 0; j < page_num; j++) {
                         int mem_blks = (j * lst_per_page);
-                        if ((!mac_control->fifos[i].list_info) ||
-                                (!mac_control->fifos[i].list_info[mem_blks].
-                                 list_virt_addr))
+                        if (!mac_control->fifos[i].list_info)
+                                return; 
+                        if (!mac_control->fifos[i].list_info[mem_blks].
+                                 list_virt_addr)
                                 break;
                         pci_free_consistent(nic->pdev, PAGE_SIZE,
                                             mac_control->fifos[i].
@@ -628,6 +649,18 @@ static void free_shared_mem(struct s2io_nic *nic)
                                             list_info[mem_blks].
                                             list_phy_addr);
                 }
+                /* If we got a zero DMA address during allocation,
+                 * free the page now
+                 */
+                if (mac_control->zerodma_virt_addr) {
+                        pci_free_consistent(nic->pdev, PAGE_SIZE,
+                                            mac_control->zerodma_virt_addr,
+                                            (dma_addr_t)0);
+                        DBG_PRINT(INIT_DBG, 
+                        "%s: Freeing TxDL with zero DMA addr. ", dev->name);
+                        DBG_PRINT(INIT_DBG, "Virtual address %llx\n",
+                        (u64)(mac_control->zerodma_virt_addr));
+                }
                 kfree(mac_control->fifos[i].list_info);
         }
 
@@ -2479,9 +2512,10 @@ static void rx_intr_handler(ring_info_t *ring_data)
 #endif
         spin_lock(&nic->rx_lock);
         if (atomic_read(&nic->card_state) == CARD_DOWN) {
-                DBG_PRINT(ERR_DBG, "%s: %s going down for reset\n",
+                DBG_PRINT(INTR_DBG, "%s: %s going down for reset\n",
                           __FUNCTION__, dev->name);
                 spin_unlock(&nic->rx_lock);
+                return;
         }
 
         get_info = ring_data->rx_curr_get_info;
@@ -2596,8 +2630,14 @@ static void tx_intr_handler(fifo_info_t *fifo_data)
                 if (txdlp->Control_1 & TXD_T_CODE) {
                         unsigned long long err;
                         err = txdlp->Control_1 & TXD_T_CODE;
-                        DBG_PRINT(ERR_DBG, "***TxD error %llx\n",
-                                  err);
+                        if ((err >> 48) == 0xA) {
+                                DBG_PRINT(TX_DBG, "TxD returned due \
+                                                to loss of link\n");
+                        }
+                        else {
+                                DBG_PRINT(ERR_DBG, "***TxD error \
+                                                %llx\n", err);
+                        }
                 }
 
                 skb = (struct sk_buff *) ((unsigned long)
@@ -2689,12 +2729,16 @@ static void alarm_intr_handler(struct s2io_nic *nic)
                 if (val64 & MC_ERR_REG_ECC_ALL_DBL) {
                         nic->mac_control.stats_info->sw_stat.
                                 double_ecc_errs++;
-                        DBG_PRINT(ERR_DBG, "%s: Device indicates ",
+                        DBG_PRINT(INIT_DBG, "%s: Device indicates ",
                                   dev->name);
-                        DBG_PRINT(ERR_DBG, "double ECC error!!\n");
+                        DBG_PRINT(INIT_DBG, "double ECC error!!\n");
                         if (nic->device_type != XFRAME_II_DEVICE) {
-                                netif_stop_queue(dev);
-                                schedule_work(&nic->rst_timer_task);
+                                /* Reset XframeI only if critical error */
+                                if (val64 & (MC_ERR_REG_MIRI_ECC_DB_ERR_0 |
+                                             MC_ERR_REG_MIRI_ECC_DB_ERR_1)) {
+                                        netif_stop_queue(dev);
+                                        schedule_work(&nic->rst_timer_task);
+                                }
                         }
                 } else {
                         nic->mac_control.stats_info->sw_stat.
@@ -2706,7 +2750,8 @@ static void alarm_intr_handler(struct s2io_nic *nic)
         val64 = readq(&bar0->serr_source);
         if (val64 & SERR_SOURCE_ANY) {
                 DBG_PRINT(ERR_DBG, "%s: Device indicates ", dev->name);
-                DBG_PRINT(ERR_DBG, "serious error!!\n");
+                DBG_PRINT(ERR_DBG, "serious error %llx!!\n", 
+                          (unsigned long long)val64);
                 netif_stop_queue(dev);
                 schedule_work(&nic->rst_timer_task);
         }
@@ -3130,7 +3175,7 @@ int s2io_xmit(struct sk_buff *skb, struct net_device *dev)
         queue_len = mac_control->fifos[queue].tx_curr_put_info.fifo_len + 1;
         /* Avoid "put" pointer going beyond "get" pointer */
         if (txdp->Host_Control || (((put_off + 1) % queue_len) == get_off)) {
-                DBG_PRINT(ERR_DBG, "Error in xmit, No free TXDs.\n");
+                DBG_PRINT(TX_DBG, "Error in xmit, No free TXDs.\n");
                 netif_stop_queue(dev);
                 dev_kfree_skb(skb);
                 spin_unlock_irqrestore(&sp->tx_lock, flags);
@@ -3528,7 +3573,7 @@ static void s2io_set_multicast(struct net_device *dev)
 
                 val64 = readq(&bar0->mac_cfg);
                 sp->promisc_flg = 1;
-                DBG_PRINT(ERR_DBG, "%s: entered promiscuous mode\n",
+                DBG_PRINT(INFO_DBG, "%s: entered promiscuous mode\n",
                           dev->name);
         } else if (!(dev->flags & IFF_PROMISC) && (sp->promisc_flg)) {
                 /*  Remove the NIC from promiscuous mode */
@@ -3543,7 +3588,7 @@ static void s2io_set_multicast(struct net_device *dev)
 
                 val64 = readq(&bar0->mac_cfg);
                 sp->promisc_flg = 0;
-                DBG_PRINT(ERR_DBG, "%s: left promiscuous mode\n",
+                DBG_PRINT(INFO_DBG, "%s: left promiscuous mode\n",
                           dev->name);
         }
 
@@ -5325,7 +5370,7 @@ s2io_init_nic(struct pci_dev *pdev, const struct pci_device_id *pre)
                         break;
                 }
         }
-        config->max_txds = MAX_SKB_FRAGS;
+        config->max_txds = MAX_SKB_FRAGS + 1;
 
         /* Rx side parameters. */
         if (rx_ring_sz[0] == 0)
@@ -5525,9 +5570,14 @@ s2io_init_nic(struct pci_dev *pdev, const struct pci_device_id *pre)
         if (sp->device_type & XFRAME_II_DEVICE) {
                 DBG_PRINT(ERR_DBG, "%s: Neterion Xframe II 10GbE adapter ",
                           dev->name);
-                DBG_PRINT(ERR_DBG, "(rev %d), Driver %s\n",
+                DBG_PRINT(ERR_DBG, "(rev %d), %s",
                                 get_xena_rev_id(sp->pdev),
                                 s2io_driver_version);
+#ifdef CONFIG_2BUFF_MODE
+                DBG_PRINT(ERR_DBG, ", Buffer mode %d",2);
+#endif
+
+                DBG_PRINT(ERR_DBG, "\nCopyright(c) 2002-2005 Neterion Inc.\n");
                 DBG_PRINT(ERR_DBG, "MAC ADDR: %02x:%02x:%02x:%02x:%02x:%02x\n",
                           sp->def_mac_addr[0].mac_addr[0],
                           sp->def_mac_addr[0].mac_addr[1],
@@ -5544,9 +5594,13 @@ s2io_init_nic(struct pci_dev *pdev, const struct pci_device_id *pre)
         } else {
                 DBG_PRINT(ERR_DBG, "%s: Neterion Xframe I 10GbE adapter ",
                           dev->name);
-                DBG_PRINT(ERR_DBG, "(rev %d), Driver %s\n",
+                DBG_PRINT(ERR_DBG, "(rev %d), %s",
                                         get_xena_rev_id(sp->pdev),
                                         s2io_driver_version);
+#ifdef CONFIG_2BUFF_MODE
+                DBG_PRINT(ERR_DBG, ", Buffer mode %d",2);
+#endif
+                DBG_PRINT(ERR_DBG, "\nCopyright(c) 2002-2005 Neterion Inc.\n");
                 DBG_PRINT(ERR_DBG, "MAC ADDR: %02x:%02x:%02x:%02x:%02x:%02x\n",
                           sp->def_mac_addr[0].mac_addr[0],
                           sp->def_mac_addr[0].mac_addr[1],
diff --git a/drivers/net/s2io.h b/drivers/net/s2io.h
index bc64d967f080..89151cb52181 100644
--- a/drivers/net/s2io.h
+++ b/drivers/net/s2io.h
@@ -1,5 +1,5 @@
 /************************************************************************
- * s2io.h: A Linux PCI-X Ethernet driver for S2IO 10GbE Server NIC
+ * s2io.h: A Linux PCI-X Ethernet driver for Neterion 10GbE Server NIC
  * Copyright(c) 2002-2005 Neterion Inc.
 
  * This software may be used and distributed according to the terms of
@@ -622,6 +622,9 @@ typedef struct mac_info {
         /* Fifo specific structure */
         fifo_info_t fifos[MAX_TX_FIFOS];
 
+        /* Save virtual address of TxD page with zero DMA addr(if any) */
+        void *zerodma_virt_addr;
+
 /* rx side stuff */
         /* Ring specific structure */
         ring_info_t rings[MAX_RX_RINGS];