[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>
diff --git a/drivers/net/bnx2.c b/drivers/net/bnx2.c
index da7c3b0..9789f05 100644
--- a/drivers/net/bnx2.c
+++ b/drivers/net/bnx2.c
@@ -1811,6 +1811,7 @@
vcid = 96;
while (vcid) {
u32 vcid_addr, pcid_addr, offset;
+ int i;
vcid--;
@@ -1831,16 +1832,20 @@
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);
+
+ /* 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);
}
-
- REG_WR(bp, BNX2_CTX_VIRT_ADDR, vcid_addr);
- REG_WR(bp, BNX2_CTX_PAGE_TBL, pcid_addr);
}
}