netdev - [PATCH net 1/2] qed: Fix MPA unalign flow in case header is split across two packets.

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Date:   Wed, 14 Mar 2018 14:49:27 +0200
From:   Michal Kalderon <Michal.Kalderon@...ium.com>
To:     <michal.kalderon@...ium.com>, <davem@...emloft.net>
CC:     <netdev@...r.kernel.org>, <dledford@...hat.com>,
        <jgg@...lanox.com>, <linux-rdma@...r.kernel.org>,
        Michal Kalderon <Michal.Kalderon@...ium.com>,
        Ariel Elior <Ariel.Elior@...ium.com>
Subject: [PATCH net 1/2] qed: Fix MPA unalign flow in case header is split across two packets.

There is a corner case in the MPA unalign flow where a FPDU header is
split over two tcp segments. The length of the first fragment in this
case was not initialized properly and should be '1'

Fixes: c7d1d839 ("qed: Add support for MPA header being split over two tcp packets")

Signed-off-by: Michal Kalderon <Michal.Kalderon@...ium.com>
Signed-off-by: Ariel Elior <Ariel.Elior@...ium.com>
---
 drivers/net/ethernet/qlogic/qed/qed_iwarp.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/net/ethernet/qlogic/qed/qed_iwarp.c b/drivers/net/ethernet/qlogic/qed/qed_iwarp.c
index ca4a81d..fefe527 100644
--- a/drivers/net/ethernet/qlogic/qed/qed_iwarp.c
+++ b/drivers/net/ethernet/qlogic/qed/qed_iwarp.c
@@ -1928,8 +1928,8 @@ qed_iwarp_update_fpdu_length(struct qed_hwfn *p_hwfn,
 		/* Missing lower byte is now available */
 		mpa_len = fpdu->fpdu_length | *mpa_data;
 		fpdu->fpdu_length = QED_IWARP_FPDU_LEN_WITH_PAD(mpa_len);
-		fpdu->mpa_frag_len = fpdu->fpdu_length;
 		/* one byte of hdr */
+		fpdu->mpa_frag_len = 1;
 		fpdu->incomplete_bytes = fpdu->fpdu_length - 1;
 		DP_VERBOSE(p_hwfn,
 			   QED_MSG_RDMA,
-- 
2.9.5