S2IO: Restoring the mac address in s2io_reset

- Restore in s2io_reset, the mac address assigned during s2io_open.
  Earlier, it was getting overwritten to the factory default (read from the
  eeprom) and subsequently dropping received frames.

- Fixed the typo in calling rtnl_unlock in s2io_set_link function.

Signed-off-by: Sivakumar Subramani <sivakumar.subramani@neterion.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>

1 files changed, 22 insertions, 4 deletions

diff --git a/drivers/net/s2io.c b/drivers/net/s2io.c
index b991fb2ff83f..44bb2395af84 100644
--- a/drivers/net/s2io.c
+++ b/drivers/net/s2io.c
@@ -84,7 +84,7 @@
 #include "s2io.h"
 #include "s2io-regs.h"
 
-#define DRV_VERSION "2.0.16.1"
+#define DRV_VERSION "2.0.17.1"
 
 /* S2io Driver name & version. */
 static char s2io_driver_name[] = "Neterion";
@@ -3394,6 +3394,9 @@ new_way:
                 writeq(val64, &bar0->pcc_err_reg);
         }
 
+        /* restore the previously assigned mac address */
+        s2io_set_mac_addr(sp->dev, (u8 *)&sp->def_mac_addr[0].mac_addr);
+
         sp->device_enabled_once = FALSE;
 }
 
@@ -4512,6 +4515,7 @@ static int s2io_set_mac_addr(struct net_device *dev, u8 * addr)
         struct XENA_dev_config __iomem *bar0 = sp->bar0;
         register u64 val64, mac_addr = 0;
         int i;
+        u64 old_mac_addr = 0;
 
         /*
          * Set the new MAC address as the new unicast filter and reflect this
@@ -4521,6 +4525,22 @@ static int s2io_set_mac_addr(struct net_device *dev, u8 * addr)
         for (i = 0; i < ETH_ALEN; i++) {
                 mac_addr <<= 8;
                 mac_addr |= addr[i];
+                old_mac_addr <<= 8;
+                old_mac_addr |= sp->def_mac_addr[0].mac_addr[i];
+        }
+
+        if(0 == mac_addr)
+                return SUCCESS;
+
+        /* Update the internal structure with this new mac address */
+        if(mac_addr != old_mac_addr) {
+                memset(sp->def_mac_addr[0].mac_addr, 0, sizeof(ETH_ALEN));
+                sp->def_mac_addr[0].mac_addr[5] = (u8) (mac_addr);
+                sp->def_mac_addr[0].mac_addr[4] = (u8) (mac_addr >> 8);
+                sp->def_mac_addr[0].mac_addr[3] = (u8) (mac_addr >> 16);
+                sp->def_mac_addr[0].mac_addr[2] = (u8) (mac_addr >> 24);
+                sp->def_mac_addr[0].mac_addr[1] = (u8) (mac_addr >> 32);
+                sp->def_mac_addr[0].mac_addr[0] = (u8) (mac_addr >> 40);
         }
 
         writeq(RMAC_ADDR_DATA0_MEM_ADDR(mac_addr),
@@ -6022,7 +6042,7 @@ static void s2io_set_link(struct work_struct *work)
         clear_bit(0, &(nic->link_state));
 
 out_unlock:
-        rtnl_lock();
+        rtnl_unlock();
 }
 
 static int set_rxd_buffer_pointer(struct s2io_nic *sp, struct RxD_t *rxdp,
@@ -7182,8 +7202,6 @@ s2io_init_nic(struct pci_dev *pdev, const struct pci_device_id *pre)
         mac_down = (u32) tmp64;
         mac_up = (u32) (tmp64 >> 32);
 
-        memset(sp->def_mac_addr[0].mac_addr, 0, sizeof(ETH_ALEN));
-
         sp->def_mac_addr[0].mac_addr[3] = (u8) (mac_up);
         sp->def_mac_addr[0].mac_addr[2] = (u8) (mac_up >> 8);
         sp->def_mac_addr[0].mac_addr[1] = (u8) (mac_up >> 16);