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x-ptr=fail x-ptr-helo=silver.osuosl.org x-ptr-lookup=smtp3.osuosl.org; x-return-mx=pass smtp.domain=linuxdriverproject.org smtp.result=pass smtp_is_org_domain=yes header.domain=microsoft.com header.result=pass header_is_org_domain=yes; x-tls=pass version=TLSv1.2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128 X-Remote-Delivered-To: driverdev-devel@osuosl.org From: "Michael Kelley (EOSG)" To: KY Srinivasan , Stephen Hemminger , "martin.petersen@oracle.com" , Long Li , "jejb@linux.vnet.ibm.com" , "devel@linuxdriverproject.org" , "linux-kernel@vger.kernel.org" , "linux-scsi@vger.kernel.org" Subject: [PATCH 1/1] scsi: storvsc: Increase cmd_per_lun for higher speed devices Thread-Topic: [PATCH 1/1] scsi: storvsc: Increase cmd_per_lun for higher speed devices Thread-Index: AQHTlWWojcBZAOPPnEOXMIrtBDDiUQ== Date: Wed, 24 Jan 2018 22:49:57 +0000 Message-ID: <1516834132-26273-1-git-send-email-mikelley@ntdev.microsoft.com> Accept-Language: en-US Content-Language: en-US X-MS-Has-Attach: X-MS-TNEF-Correlator: x-mailer: git-send-email 1.8.3.1 x-originating-ip: [52.168.54.252] x-ms-publictraffictype: Email x-microsoft-exchange-diagnostics: 1; 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charset="us-ascii" Content-Transfer-Encoding: 7bit Errors-To: driverdev-devel-bounces@linuxdriverproject.org Sender: "devel" X-getmail-retrieved-from-mailbox: INBOX X-Mailing-List: linux-kernel@vger.kernel.org List-ID: Increase cmd_per_lun to allow more I/Os in progress per device, particularly for NVMe's. The Hyper-V host side can handle the higher count with no issues. Signed-off-by: Michael Kelley --- drivers/scsi/storvsc_drv.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/scsi/storvsc_drv.c b/drivers/scsi/storvsc_drv.c index f3264c4..6205107 100644 --- a/drivers/scsi/storvsc_drv.c +++ b/drivers/scsi/storvsc_drv.c @@ -1657,7 +1657,7 @@ static int storvsc_queuecommand(struct Scsi_Host *host, struct scsi_cmnd *scmnd) .eh_timed_out = storvsc_eh_timed_out, .slave_alloc = storvsc_device_alloc, .slave_configure = storvsc_device_configure, - .cmd_per_lun = 255, + .cmd_per_lun = 2048, .this_id = -1, .use_clustering = ENABLE_CLUSTERING, /* Make sure we dont get a sg segment crosses a page boundary */ -- 1.8.3.1 _______________________________________________ devel mailing list devel@linuxdriverproject.org http://driverdev.linuxdriverproject.org/mailman/listinfo/driverdev-devel