From mboxrd@z Thu Jan 1 00:00:00 1970 From: David Disseldorp Date: Fri, 27 Mar 2020 14:19:53 +0000 Subject: [PATCH v3 4/5] scsi: target: increase XCOPY I/O size Message-Id: <20200327141954.955-5-ddiss@suse.de> List-Id: References: <20200327141954.955-1-ddiss@suse.de> In-Reply-To: <20200327141954.955-1-ddiss@suse.de> MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit To: target-devel@vger.kernel.org Cc: linux-scsi@vger.kernel.org, martin.petersen@oracle.com, bvanassche@acm.org, David Disseldorp The I/O size is already bound by dev_attrib.hw_max_sectors, so increase the hardcoded XCOPY_MAX_SECTORS maximum to improve performance against backstores with high-latency. Signed-off-by: David Disseldorp Reviewed-by: Christoph Hellwig --- drivers/target/target_core_xcopy.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/target/target_core_xcopy.h b/drivers/target/target_core_xcopy.h index 9558974185ea..f1aaf7140798 100644 --- a/drivers/target/target_core_xcopy.h +++ b/drivers/target/target_core_xcopy.h @@ -5,7 +5,7 @@ #define XCOPY_TARGET_DESC_LEN 32 #define XCOPY_SEGMENT_DESC_LEN 28 #define XCOPY_NAA_IEEE_REGEX_LEN 16 -#define XCOPY_MAX_SECTORS 1024 +#define XCOPY_MAX_SECTORS 4096 /* * SPC4r37 6.4.6.1 -- 2.16.4 From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-9.7 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_PATCH,MAILING_LIST_MULTI,SIGNED_OFF_BY,SPF_HELO_NONE,SPF_PASS, URIBL_BLOCKED,USER_AGENT_GIT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id C6611C43331 for ; Fri, 27 Mar 2020 14:20:16 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id A752320658 for ; Fri, 27 Mar 2020 14:20:16 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727593AbgC0OUQ (ORCPT ); Fri, 27 Mar 2020 10:20:16 -0400 Received: from mx2.suse.de ([195.135.220.15]:55208 "EHLO mx2.suse.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1727505AbgC0OUP (ORCPT ); Fri, 27 Mar 2020 10:20:15 -0400 X-Virus-Scanned: by amavisd-new at test-mx.suse.de Received: from relay2.suse.de (unknown [195.135.220.254]) by mx2.suse.de (Postfix) with ESMTP id 36CFEB029; Fri, 27 Mar 2020 14:20:14 +0000 (UTC) From: David Disseldorp To: target-devel@vger.kernel.org Cc: linux-scsi@vger.kernel.org, martin.petersen@oracle.com, bvanassche@acm.org, David Disseldorp Subject: [PATCH v3 4/5] scsi: target: increase XCOPY I/O size Date: Fri, 27 Mar 2020 15:19:53 +0100 Message-Id: <20200327141954.955-5-ddiss@suse.de> X-Mailer: git-send-email 2.16.4 In-Reply-To: <20200327141954.955-1-ddiss@suse.de> References: <20200327141954.955-1-ddiss@suse.de> Sender: linux-scsi-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-scsi@vger.kernel.org The I/O size is already bound by dev_attrib.hw_max_sectors, so increase the hardcoded XCOPY_MAX_SECTORS maximum to improve performance against backstores with high-latency. Signed-off-by: David Disseldorp Reviewed-by: Christoph Hellwig --- drivers/target/target_core_xcopy.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/target/target_core_xcopy.h b/drivers/target/target_core_xcopy.h index 9558974185ea..f1aaf7140798 100644 --- a/drivers/target/target_core_xcopy.h +++ b/drivers/target/target_core_xcopy.h @@ -5,7 +5,7 @@ #define XCOPY_TARGET_DESC_LEN 32 #define XCOPY_SEGMENT_DESC_LEN 28 #define XCOPY_NAA_IEEE_REGEX_LEN 16 -#define XCOPY_MAX_SECTORS 1024 +#define XCOPY_MAX_SECTORS 4096 /* * SPC4r37 6.4.6.1 -- 2.16.4