linux-kernel - [PATCH AUTOSEL for 4.9 37/54] RDMA/qedr: Fix RDMA CM loopback

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Date:   Wed, 22 Nov 2017 22:24:00 +0000
From:   alexander.levin@...izon.com
To:     "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        "stable@...r.kernel.org" <stable@...r.kernel.org>
Cc:     Ram Amrani <Ram.Amrani@...ium.com>,
        Ram Amrani <Ram.Amrani@...ium.com>,
        Ariel Elior <Ariel.Elior@...ium.com>,
        Doug Ledford <dledford@...hat.com>, alexander.levin@...izon.com
Subject: [PATCH AUTOSEL for 4.9 37/54] RDMA/qedr: Fix RDMA CM loopback

From: Ram Amrani <Ram.Amrani@...ium.com>

[ Upstream commit af2b14b8b8ae21b0047a52c767ac8b44f435a280 ]

The loopback logic in RDMA CM packets compares Ethernet addresses and
was accidently inverse.

Signed-off-by: Ram Amrani <Ram.Amrani@...ium.com>
Signed-off-by: Ariel Elior <Ariel.Elior@...ium.com>
Signed-off-by: Doug Ledford <dledford@...hat.com>
Signed-off-by: Sasha Levin <alexander.levin@...izon.com>
---
 drivers/infiniband/hw/qedr/qedr_cm.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/infiniband/hw/qedr/qedr_cm.c b/drivers/infiniband/hw/qedr/qedr_cm.c
index 63890ebb72bd..eccf7039aaca 100644
--- a/drivers/infiniband/hw/qedr/qedr_cm.c
+++ b/drivers/infiniband/hw/qedr/qedr_cm.c
@@ -404,9 +404,9 @@ static inline int qedr_gsi_build_packet(struct qedr_dev *dev,
 	}
 
 	if (ether_addr_equal(udh.eth.smac_h, udh.eth.dmac_h))
-		packet->tx_dest = QED_ROCE_LL2_TX_DEST_NW;
-	else
 		packet->tx_dest = QED_ROCE_LL2_TX_DEST_LB;
+	else
+		packet->tx_dest = QED_ROCE_LL2_TX_DEST_NW;
 
 	packet->roce_mode = roce_mode;
 	memcpy(packet->header.vaddr, ud_header_buffer, header_size);
-- 
2.11.0