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| author | Ajit Khaparde <ajit.khaparde@emulex.com> | 2013-09-27 15:17:04 -0500 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2013-09-27 17:11:48 -0400 |
| commit | b54881f9949e4eac6ff23c86625467a365085bd6 (patch) | |
| tree | 75c730fe842807c69fbb81b4312290386ea04c39 | |
| parent | a97b7c3aadc8681f7efd8398567255616ad464d8 (diff) | |
| download | linux-b54881f9949e4eac6ff23c86625467a365085bd6.tar.gz linux-b54881f9949e4eac6ff23c86625467a365085bd6.tar.bz2 linux-b54881f9949e4eac6ff23c86625467a365085bd6.zip | |
be2net: Fix to prevent Tx stall on SH-R when packet size < 32
Tx on SH-R can lockup if the packet size is less than 32 bytes.
Pad such packets to a safer 36-byte size.
Patch uses the Lancer-R workaround - which checks for packet <= 32-bytes
Signed-off-by: Ajit Khaparde <ajit.khaparde@emulex.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
| -rw-r--r-- | drivers/net/ethernet/emulex/benet/be_main.c | 6 |
1 files changed, 3 insertions, 3 deletions
diff --git a/drivers/net/ethernet/emulex/benet/be_main.c b/drivers/net/ethernet/emulex/benet/be_main.c index 100b528b9bd0..31fa13bc9eed 100644 --- a/drivers/net/ethernet/emulex/benet/be_main.c +++ b/drivers/net/ethernet/emulex/benet/be_main.c @@ -855,11 +855,11 @@ static struct sk_buff *be_xmit_workarounds(struct be_adapter *adapter, unsigned int eth_hdr_len; struct iphdr *ip; - /* Lancer ASIC has a bug wherein packets that are 32 bytes or less + /* Lancer, SH-R ASICs have a bug wherein Packets that are 32 bytes or less * may cause a transmit stall on that port. So the work-around is to - * pad such packets to a 36-byte length. + * pad short packets (<= 32 bytes) to a 36-byte length. */ - if (unlikely(lancer_chip(adapter) && skb->len <= 32)) { + if (unlikely(!BEx_chip(adapter) && skb->len <= 32)) { if (skb_padto(skb, 36)) goto tx_drop; skb->len = 36; |