linux-kernel - [PATCH 4/8] storvsc: set virt_boundary

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Message-Id: <20190617122000.22181-5-hch@lst.de>
Date:   Mon, 17 Jun 2019 14:19:56 +0200
From:   Christoph Hellwig <hch@....de>
To:     "Martin K . Petersen" <martin.petersen@...cle.com>
Cc:     Sagi Grimberg <sagi@...mberg.me>, Max Gurtovoy <maxg@...lanox.com>,
        Bart Van Assche <bvanassche@....org>,
        linux-rdma@...r.kernel.org, linux-scsi@...r.kernel.org,
        megaraidlinux.pdl@...adcom.com, MPT-FusionLinux.pdl@...adcom.com,
        linux-hyperv@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: [PATCH 4/8] storvsc: set virt_boundary_mask in the scsi host template

This ensures all proper DMA layer handling is taken care of by the
SCSI midlayer.

Signed-off-by: Christoph Hellwig <hch@....de>
---
 drivers/scsi/storvsc_drv.c | 5 ++---
 1 file changed, 2 insertions(+), 3 deletions(-)

diff --git a/drivers/scsi/storvsc_drv.c b/drivers/scsi/storvsc_drv.c
index b89269120a2d..7ed6f2fc1446 100644
--- a/drivers/scsi/storvsc_drv.c
+++ b/drivers/scsi/storvsc_drv.c
@@ -1422,9 +1422,6 @@ static int storvsc_device_configure(struct scsi_device *sdevice)
 {
 	blk_queue_rq_timeout(sdevice->request_queue, (storvsc_timeout * HZ));
 
-	/* Ensure there are no gaps in presented sgls */
-	blk_queue_virt_boundary(sdevice->request_queue, PAGE_SIZE - 1);
-
 	sdevice->no_write_same = 1;
 
 	/*
@@ -1697,6 +1694,8 @@ static struct scsi_host_template scsi_driver = {
 	.this_id =		-1,
 	/* Make sure we dont get a sg segment crosses a page boundary */
 	.dma_boundary =		PAGE_SIZE-1,
+	/* Ensure there are no gaps in presented sgls */
+	.virt_boundary_mask =	PAGE_SIZE-1,
 	.no_write_same =	1,
 	.track_queue_depth =	1,
 };
-- 
2.20.1