[PATCH] S2io: Hardware fixes for Xframe II adapter

Hi,

Patch Description:
This patch incorporates the following hardware fixes required
for Xframe II adapter.
1. New values to program the dtx_control register.
2. Disable memory controller interrupts(MC_INTR) since these
   are now monitored thru' a poll routine.
3. Don't reset an XframeII card on an ECC double-bit error(It
   can recover).
4. Save/restore PCI config space before/after a reset irrespective
   of Xframe I or II card.
5. Bumped up the driver version no. to 2.0.3.1

Please review the patch and apply the same if it looks ok.

Signed-off-by: Ravinandan Arakali <ravinandan.arakali@neterion.com>
Signed-off-by: Jeff Garzik <jgarzik@pobox.com>

1 files changed, 18 insertions, 19 deletions

diff --git a/drivers/net/s2io.c b/drivers/net/s2io.c
index e083351e3f42..7ca78228b104 100644
--- a/drivers/net/s2io.c
+++ b/drivers/net/s2io.c
@@ -67,7 +67,7 @@
 
 /* S2io Driver name & version. */
 static char s2io_driver_name[] = "Neterion";
-static char s2io_driver_version[] = "Version 2.0.2.1";
+static char s2io_driver_version[] = "Version 2.0.3.1";
 
 static inline int RXD_IS_UP2DT(RxD_t *rxdp)
 {
@@ -210,14 +210,18 @@ static void s2io_vlan_rx_kill_vid(struct net_device *dev, unsigned long vid)
 
 static u64 herc_act_dtx_cfg[] = {
         /* Set address */
-        0x80000515BA750000ULL, 0x80000515BA7500E0ULL,
+        0x8000051536750000ULL, 0x80000515367500E0ULL,
         /* Write data */
-        0x80000515BA750004ULL, 0x80000515BA7500E4ULL,
+        0x8000051536750004ULL, 0x80000515367500E4ULL,
         /* Set address */
         0x80010515003F0000ULL, 0x80010515003F00E0ULL,
         /* Write data */
         0x80010515003F0004ULL, 0x80010515003F00E4ULL,
         /* Set address */
+        0x801205150D440000ULL, 0x801205150D4400E0ULL,
+        /* Write data */
+        0x801205150D440004ULL, 0x801205150D4400E4ULL,
+        /* Set address */
         0x80020515F2100000ULL, 0x80020515F21000E0ULL,
         /* Write data */
         0x80020515F2100004ULL, 0x80020515F21000E4ULL,
@@ -1903,7 +1907,7 @@ static int start_nic(struct s2io_nic *nic)
         }
 
         /*  Enable select interrupts */
-        interruptible = TX_TRAFFIC_INTR | RX_TRAFFIC_INTR | MC_INTR;
+        interruptible = TX_TRAFFIC_INTR | RX_TRAFFIC_INTR;
         interruptible |= TX_PIC_INTR | RX_PIC_INTR;
         interruptible |= TX_MAC_INTR | RX_MAC_INTR;
 
@@ -2030,7 +2034,7 @@ static void stop_nic(struct s2io_nic *nic)
         config = &nic->config;
 
         /*  Disable all interrupts */
-        interruptible = TX_TRAFFIC_INTR | RX_TRAFFIC_INTR | MC_INTR;
+        interruptible = TX_TRAFFIC_INTR | RX_TRAFFIC_INTR;
         interruptible |= TX_PIC_INTR | RX_PIC_INTR;
         interruptible |= TX_MAC_INTR | RX_MAC_INTR;
         en_dis_able_nic_intrs(nic, interruptible, DISABLE_INTRS);
@@ -2688,8 +2692,10 @@ static void alarm_intr_handler(struct s2io_nic *nic)
                         DBG_PRINT(ERR_DBG, "%s: Device indicates ",
                                   dev->name);
                         DBG_PRINT(ERR_DBG, "double ECC error!!\n");
-                        netif_stop_queue(dev);
-                        schedule_work(&nic->rst_timer_task);
+                        if (nic->device_type != XFRAME_II_DEVICE) {
+                                netif_stop_queue(dev);
+                                schedule_work(&nic->rst_timer_task);
+                        }
                 } else {
                         nic->mac_control.stats_info->sw_stat.
                                 single_ecc_errs++;
@@ -2772,8 +2778,7 @@ void s2io_reset(nic_t * sp)
         u16 subid, pci_cmd;
 
         /* Back up  the PCI-X CMD reg, dont want to lose MMRBC, OST settings */
-        if (sp->device_type == XFRAME_I_DEVICE)
-                pci_read_config_word(sp->pdev, PCIX_COMMAND_REGISTER, &(pci_cmd));
+        pci_read_config_word(sp->pdev, PCIX_COMMAND_REGISTER, &(pci_cmd));
 
         val64 = SW_RESET_ALL;
         writeq(val64, &bar0->sw_reset);
@@ -2792,14 +2797,10 @@ void s2io_reset(nic_t * sp)
          */
         msleep(250);
 
-        if (!(sp->device_type & XFRAME_II_DEVICE)) {
-                /* Restore the PCI state saved during initializarion. */
-                pci_restore_state(sp->pdev);
-                pci_write_config_word(sp->pdev, PCIX_COMMAND_REGISTER,
+        /* Restore the PCI state saved during initialization. */
+        pci_restore_state(sp->pdev);
+        pci_write_config_word(sp->pdev, PCIX_COMMAND_REGISTER,
                                      pci_cmd);
-        } else {
-                pci_set_master(sp->pdev);
-        }
         s2io_init_pci(sp);
 
         msleep(250);
@@ -5426,9 +5427,7 @@ s2io_init_nic(struct pci_dev *pdev, const struct pci_device_id *pre)
         INIT_WORK(&sp->set_link_task,
                   (void (*)(void *)) s2io_set_link, sp);
 
-        if (!(sp->device_type & XFRAME_II_DEVICE)) {
-                pci_save_state(sp->pdev);
-        }
+        pci_save_state(sp->pdev);
 
         /* Setting swapper control on the NIC, for proper reset operation */
         if (s2io_set_swapper(sp)) {