From: Michal Kalderon <Michal.Kalderon@cavium.com>
Date: Wed, 14 Mar 2018 14:49:27 +0200
Subject: qed: Fix MPA unalign flow in case header is split across two packets.
Patch-mainline: v4.16-rc7
Git-commit: 933e8c91b9f5a2f504f6da1f069c410449b9f4b9
References: bsc#1050536 FATE#322898 bsc#1050545 FATE#322893

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@cavium.com>
Signed-off-by: Ariel Elior <Ariel.Elior@cavium.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Acked-by: Thomas Bogendoerfer <tbogendoerfer@suse.de>
---
 drivers/net/ethernet/qlogic/qed/qed_iwarp.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

--- a/drivers/net/ethernet/qlogic/qed/qed_iwarp.c
+++ b/drivers/net/ethernet/qlogic/qed/qed_iwarp.c
@@ -1906,8 +1906,8 @@ qed_iwarp_update_fpdu_length(struct qed_
 		/* 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,