qed: Fix MPA unalign flow in case header is split across two packets.

[ Upstream commit 933e8c91b9f5a2f504f6da1f069c410449b9f4b9 ]

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>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

diff --git a/drivers/net/ethernet/qlogic/qed/qed_iwarp.c b/drivers/net/ethernet/qlogic/qed/qed_iwarp.c
index 409041eab189f35a230158cc3275f27479d36572..a71339ca23e548205817efe98c419d9039b7c252 100644 (file)
--- 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_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,