[BNX2]: Fix netdev watchdog on 5708.

There's a bug in the driver that only initializes half of the context
memory on the 5708.  Surprisingly, this works most of the time except
for some occasional netdev watchdogs when sending a lot of 64-byte
packets.  The fix is to add the missing code to initialize the 2nd
halves of all context memory.

Signed-off-by: Michael Chan <mchan@broadcom.com>
Acked-by: Jeff Garzik <jeff@garzik.org>
Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 13 insertions, 8 deletions

diff --git a/drivers/net/bnx2.c b/drivers/net/bnx2.c
index da7c3b0c533c..9789f05cbc99 100644
--- a/drivers/net/bnx2.c
+++ b/drivers/net/bnx2.c
@@ -1811,6 +1811,7 @@ bnx2_init_context(struct bnx2 *bp)
         vcid = 96;
         while (vcid) {
                 u32 vcid_addr, pcid_addr, offset;
+                int i;
 
                 vcid--;
 
@@ -1831,16 +1832,20 @@ bnx2_init_context(struct bnx2 *bp)
                         pcid_addr = vcid_addr;
                 }
 
-                REG_WR(bp, BNX2_CTX_VIRT_ADDR, 0x00);
-                REG_WR(bp, BNX2_CTX_PAGE_TBL, pcid_addr);
+                for (i = 0; i < (CTX_SIZE / PHY_CTX_SIZE); i++) {
+                        vcid_addr += (i << PHY_CTX_SHIFT);
+                        pcid_addr += (i << PHY_CTX_SHIFT);
 
-                /* Zero out the context. */
-                for (offset = 0; offset < PHY_CTX_SIZE; offset += 4) {
-                        CTX_WR(bp, 0x00, offset, 0);
-                }
+                        REG_WR(bp, BNX2_CTX_VIRT_ADDR, 0x00);
+                        REG_WR(bp, BNX2_CTX_PAGE_TBL, pcid_addr);
 
-                REG_WR(bp, BNX2_CTX_VIRT_ADDR, vcid_addr);
-                REG_WR(bp, BNX2_CTX_PAGE_TBL, pcid_addr);
+                        /* Zero out the context. */
+                        for (offset = 0; offset < PHY_CTX_SIZE; offset += 4)
+                                CTX_WR(bp, 0x00, offset, 0);
+
+                        REG_WR(bp, BNX2_CTX_VIRT_ADDR, vcid_addr);
+                        REG_WR(bp, BNX2_CTX_PAGE_TBL, pcid_addr);
+                }
         }
 }