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cxgb4: Fix tx flit calculation

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In commit 0aac3f56d4 ("cxgb4: Add comment for calculate tx flits
and sge length code") introduced a regression where tx flit calculation
is going wrong, which can lead to data corruption, hang, stall and
write-combining failure. Fixing it.

Signed-off-by: Hariprasad Shenai <hariprasad@chelsio.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Hariprasad Shenai 2015-09-08 16:25:39 +05:30 committed by David S. Miller
parent d43cefcd68
commit fd1754fb8a
1 changed files with 1 additions and 1 deletions
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2
drivers/net/ethernet/chelsio/cxgb4/sge.c
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@ -807,7 +807,7 @@ static inline unsigned int calc_tx_flits(const struct sk_buff *skb)
* message or, if we're doing a Large Send Offload, an LSO CPL message
* with an embedded TX Packet Write CPL message.
*/
flits = sgl_len(skb_shinfo(skb)->nr_frags + 1) + 4;
flits = sgl_len(skb_shinfo(skb)->nr_frags + 1);
if (skb_shinfo(skb)->gso_size)
flits += (sizeof(struct fw_eth_tx_pkt_wr) +
sizeof(struct cpl_tx_pkt_lso_core) +