[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>

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--;
 
@@ -1831,17 +1832,21 @@ bnx2_init_context(struct bnx2 *bp)
 			pcid_addr = vcid_addr;
 		}
 
+		for (i = 0; i < (CTX_SIZE / PHY_CTX_SIZE); i++) {
+			vcid_addr += (i << PHY_CTX_SHIFT);
+			pcid_addr += (i << PHY_CTX_SHIFT);
+
 			REG_WR(bp, BNX2_CTX_VIRT_ADDR, 0x00);
 			REG_WR(bp, BNX2_CTX_PAGE_TBL, pcid_addr);
 
 			/* Zero out the context. */
-		for (offset = 0; offset < PHY_CTX_SIZE; offset += 4) {
+			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);
 		}
+	}
 }
 
 static int