linux-kernel - [PATCH 4.14 053/124] scsi: qla2xxx: Initialize port speed to avoid setting lower speed

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Message-Id: <20181119162623.802033961@linuxfoundation.org>
Date:   Mon, 19 Nov 2018 17:28:27 +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, Quinn Tran <quinn.tran@...ium.com>,
        Himanshu Madhani <himanshu.madhani@...ium.com>,
        Laurence Oberman <loberman@...hat.com>,
        "Ewan D. Milne" <emilne@...hat.com>,
        "Martin K. Petersen" <martin.petersen@...cle.com>
Subject: [PATCH 4.14 053/124] scsi: qla2xxx: Initialize port speed to avoid setting lower speed

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

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

From: Quinn Tran <quinn.tran@...ium.com>

commit f635e48e866ee1a47d2d42ce012fdcc07bf55853 upstream.

This patch initializes port speed so that firmware does not set lower
operating speed. Setting lower speed in firmware impacts WRITE perfomance.

Fixes: 726b85487067 ("qla2xxx: Add framework for async fabric discovery")
Cc: <stable@...r.kernel.org>
Signed-off-by: Quinn Tran <quinn.tran@...ium.com>
Signed-off-by: Himanshu Madhani <himanshu.madhani@...ium.com>
Tested-by: Laurence Oberman <loberman@...hat.com>
Reviewed-by: Ewan D. Milne <emilne@...hat.com>
Signed-off-by: Martin K. Petersen <martin.petersen@...cle.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@...uxfoundation.org>

---
 drivers/scsi/qla2xxx/qla_init.c |    1 +
 1 file changed, 1 insertion(+)

--- a/drivers/scsi/qla2xxx/qla_init.c
+++ b/drivers/scsi/qla2xxx/qla_init.c
@@ -4236,6 +4236,7 @@ qla2x00_alloc_fcport(scsi_qla_host_t *vh
 	fcport->loop_id = FC_NO_LOOP_ID;
 	qla2x00_set_fcport_state(fcport, FCS_UNCONFIGURED);
 	fcport->supported_classes = FC_COS_UNSPECIFIED;
+	fcport->fp_speed = PORT_SPEED_UNKNOWN;

 	fcport->ct_desc.ct_sns = dma_alloc_coherent(&vha->hw->pdev->dev,
 		sizeof(struct ct_sns_pkt), &fcport->ct_desc.ct_sns_dma,