linux-kernel - [PATCH 4.9 070/109] RDMA/qedr: Fix RDMA CM loopback

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Message-Id: <20171207125642.802358258@linuxfoundation.org>
Date:   Thu,  7 Dec 2017 13:56:54 +0100
From:   Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:     linux-kernel@...r.kernel.org
Cc:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        stable@...r.kernel.org, Ram Amrani <Ram.Amrani@...ium.com>,
        Ariel Elior <Ariel.Elior@...ium.com>,
        Doug Ledford <dledford@...hat.com>,
        Sasha Levin <alexander.levin@...izon.com>
Subject: [PATCH 4.9 070/109] RDMA/qedr: Fix RDMA CM loopback

4.9-stable review patch.  If anyone has any objections, please let me know.

------------------

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>
Signed-off-by: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
---
 drivers/infiniband/hw/qedr/qedr_cm.c |    4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

--- 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(
 	}
 
 	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);