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authorMichael Chan <mchan@broadcom.com>2007-06-04 21:17:10 -0700
committerDavid S. Miller <davem@sunset.davemloft.net>2007-06-07 13:38:36 -0700
commit7947b20ebae785ba25154aa1a9a00a98a22de75a (patch)
tree6e9076d1d28c3ba12f5483a56129d6bd812fe240
parent7244d545c123ff33a3a5bff7fcb96a07778c32d1 (diff)
downloadop-kernel-dev-7947b20ebae785ba25154aa1a9a00a98a22de75a.zip
op-kernel-dev-7947b20ebae785ba25154aa1a9a00a98a22de75a.tar.gz
[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>
-rw-r--r--drivers/net/bnx2.c21
1 files changed, 13 insertions, 8 deletions
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 @@ 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);
+ }
}
}
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