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bnx2x: add gro_check

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The patch provides workaround for BUG in FW 7.2.16,
which in GRO mode may miscalculate buffer and
place on SGE one frag less than it could.
It may happen only for some MTUs, we mark these MTUs
with gro_check flag during device initialization or
MTU change.

Next FW should include fix for the issue and the
patch could be reverted.

Signed-off-by: Dmitry Kravkov <dmitry@broadcom.com>
Signed-off-by: Eilon Greenstein <eilong@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Dmitry Kravkov 2012-02-20 09:59:11 +00:00 • committed by David S. Miller
parent e65de0716f
commit fe603b4d68
4 changed files with 25 additions and 0 deletions
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2
drivers/net/ethernet/broadcom/bnx2x/bnx2x_main.c
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@ -10214,6 +10214,8 @@ static int __devinit bnx2x_init_bp(struct bnx2x *bp)
if (CHIP_IS_E3B0(bp))
bp->max_cos = BNX2X_MULTI_TX_COS_E3B0;
bp->gro_check = bnx2x_need_gro_check(bp->dev->mtu);
return rc;
}