From patchwork Fri Dec 2 21:44:56 2016 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: "Madhani, Himanshu" X-Patchwork-Id: 9459303 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork.web.codeaurora.org (Postfix) with ESMTP id 92F896074E for ; Fri, 2 Dec 2016 22:01:04 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 80D7228591 for ; Fri, 2 Dec 2016 22:01:04 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 75AD4285AD; Fri, 2 Dec 2016 22:01:04 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-6.8 required=2.0 tests=BAYES_00,DKIM_SIGNED, RCVD_IN_DNSWL_HI,T_DKIM_INVALID autolearn=ham version=3.3.1 Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id A832828599 for ; Fri, 2 Dec 2016 22:01:03 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754378AbcLBWAx (ORCPT ); Fri, 2 Dec 2016 17:00:53 -0500 Received: from mail-sn1nam02on0073.outbound.protection.outlook.com ([104.47.36.73]:63950 "EHLO NAM02-SN1-obe.outbound.protection.outlook.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1751845AbcLBWAu (ORCPT ); Fri, 2 Dec 2016 17:00:50 -0500 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=CAVIUMNETWORKS.onmicrosoft.com; s=selector1-cavium-com; h=From:Date:Subject:Message-ID:Content-Type:MIME-Version; bh=Tn+Vvy6omHP9mJ0Az/9ZRNl+BuM3dEdT1I5gg81WkKg=; b=SWlTWEpc/e114o53lsH/9GGqDEeZ0vIMThHbkkYTEYlS0ayVhVoBJKkuurlejEsRmI45o2YVUB1Xsw2NhG4/COyZ5dfaQNq/OnPF2PJZCT5pxXKjQsNSitI+5NDGJeXDU56wKY9LfB7P5g2UuFEJ/emqucLVzAU8HCJZHBIJSEw= Received: from BY2PR07CA0029.namprd07.prod.outlook.com (10.166.107.24) by CO1PR07MB208.namprd07.prod.outlook.com (10.242.167.149) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA384_P384) id 15.1.761.9; Fri, 2 Dec 2016 21:45:33 +0000 Received: from BN1BFFO11FD039.protection.gbl (2a01:111:f400:7c10::1:118) by BY2PR07CA0029.outlook.office365.com (2a01:111:e400:7bff::24) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA384_P384) id 15.1.761.9 via Frontend Transport; Fri, 2 Dec 2016 21:45:32 +0000 Authentication-Results: spf=none (sender IP is 50.232.66.26) smtp.mailfrom=cavium.com; vger.kernel.org; dkim=none (message not signed) header.d=none; vger.kernel.org; dmarc=none action=none header.from=cavium.com; Received-SPF: None (protection.outlook.com: cavium.com does not designate permitted sender hosts) Received: from CAEXCH02.caveonetworks.com (50.232.66.26) by BN1BFFO11FD039.mail.protection.outlook.com (10.58.144.102) with Microsoft SMTP Server (version=TLS1_0, cipher=TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA_P384) id 15.1.734.4 via Frontend Transport; Fri, 2 Dec 2016 21:45:31 +0000 X-IncomingTopHeaderMarker: OriginalChecksum:; UpperCasedChecksum:; SizeAsReceived:1092; Count:15 Received: from dut1171.mv.qlogic.com (172.29.51.171) by CAEXCH02.caveonetworks.com (10.17.4.29) with Microsoft SMTP Server id 14.2.309.2; Fri, 2 Dec 2016 13:44:58 -0800 Received: from dut1171.mv.qlogic.com (localhost [127.0.0.1]) by dut1171.mv.qlogic.com (8.14.7/8.14.7) with ESMTP id uB2LiwdT013660; Fri, 2 Dec 2016 13:44:58 -0800 Received: (from root@localhost) by dut1171.mv.qlogic.com (8.14.7/8.14.7/Submit) id uB2LiwIM013659; Fri, 2 Dec 2016 13:44:58 -0800 From: Himanshu Madhani To: CC: , Subject: [PATCH v3 5/6] qla2xxx: Add Block Multi Queue functionality. Date: Fri, 2 Dec 2016 13:44:56 -0800 Message-ID: <1480715097-13611-6-git-send-email-himanshu.madhani@cavium.com> X-Mailer: git-send-email 1.8.3.1 In-Reply-To: <1480715097-13611-1-git-send-email-himanshu.madhani@cavium.com> References: <1480715097-13611-1-git-send-email-himanshu.madhani@cavium.com> MIME-Version: 1.0 X-IncomingHeaderCount: 15 X-EOPAttributedMessage: 0 X-Forefront-Antispam-Report: CIP:50.232.66.26; IPV:CAL; CTRY:US; EFV:NLI; SFV:NSPM; SFS:(10009020)(6009001)(7916002)(2980300002)(428002)(199003)(189002)(4720700003)(36756003)(50466002)(189998001)(6916009)(110136003)(626004)(48376002)(4001430100002)(2950100002)(8936002)(81156014)(356003)(305945005)(86362001)(7846002)(5660300001)(33646002)(39410400001)(4326007)(5003940100001)(38730400001)(2351001)(2906002)(107886002)(39450400002)(80596001)(69596002)(50226002)(47776003)(76176999)(101416001)(50986999)(8676002)(26826002)(106466001)(81166006)(42186005)(92566002)(105586002)(87636001); DIR:OUT; SFP:1101; SCL:1; SRVR:CO1PR07MB208; H:CAEXCH02.caveonetworks.com; 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Ip=[50.232.66.26]; Helo=[CAEXCH02.caveonetworks.com] X-MS-Exchange-CrossTenant-FromEntityHeader: HybridOnPrem X-MS-Exchange-Transport-CrossTenantHeadersStamped: CO1PR07MB208 Sender: linux-scsi-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-scsi@vger.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP From: Michael Hernandez Tell the SCSI layer how many hardware queues we have based on the number of max queue pairs created. The number of max queue pairs created will depend on number of MSI-X vector count. This feature can be turned on via CONFIG_SCSI_MQ_DEFAULT or passing scsi_mod.use_blk_mq=Y as a parameter to the kernel Queue pair creation depend on module parameter "ql2xmqsupport", which need to be enabled to create queue pair. Signed-off-by: Sawan Chandak Signed-off-by: Michael Hernandez Signed-off-by: Himanshu Madhani Reviewed-by: Hannes Reinecke --- drivers/scsi/qla2xxx/qla_os.c | 37 ++++++++++++++++++++++++++++++++----- 1 file changed, 32 insertions(+), 5 deletions(-) diff --git a/drivers/scsi/qla2xxx/qla_os.c b/drivers/scsi/qla2xxx/qla_os.c index b06722a..3371b3f 100644 --- a/drivers/scsi/qla2xxx/qla_os.c +++ b/drivers/scsi/qla2xxx/qla_os.c @@ -667,16 +667,26 @@ static void qla2x00_free_queues(struct qla_hw_data *ha) struct scsi_qla_host *base_vha = pci_get_drvdata(ha->pdev); srb_t *sp; int rval; - struct qla_qpair *qpair; + struct qla_qpair *qpair = NULL; + uint32_t tag; + uint16_t hwq; if (unlikely(test_bit(UNLOADING, &base_vha->dpc_flags))) { cmd->result = DID_NO_CONNECT << 16; goto qc24_fail_command; } - if (vha->vp_idx && vha->qpair) { - qpair = vha->qpair; - return qla2xxx_mqueuecommand(host, cmd, qpair); + if (ha->mqenable) { + if (shost_use_blk_mq(vha->host)) { + tag = blk_mq_unique_tag(cmd->request); + hwq = blk_mq_unique_tag_to_hwq(tag); + qpair = ha->queue_pair_map[hwq]; + } else if (vha->vp_idx && vha->qpair) { + qpair = vha->qpair; + } + + if (qpair) + return qla2xxx_mqueuecommand(host, cmd, qpair); } if (ha->flags.eeh_busy) { @@ -2362,6 +2372,7 @@ static void qla2x00_destroy_mbx_wq(struct qla_hw_data *ha) uint16_t req_length = 0, rsp_length = 0; struct req_que *req = NULL; struct rsp_que *rsp = NULL; + int i; bars = pci_select_bars(pdev, IORESOURCE_MEM | IORESOURCE_IO); sht = &qla2xxx_driver_template; @@ -2727,6 +2738,16 @@ static void qla2x00_destroy_mbx_wq(struct qla_hw_data *ha) goto probe_init_failed; } + if (ha->mqenable && shost_use_blk_mq(host)) { + /* number of hardware queues supported by blk/scsi-mq*/ + host->nr_hw_queues = ha->max_qpairs; + + ql_dbg(ql_dbg_init, base_vha, 0x0192, + "blk/scsi-mq enabled, HW queues = %d.\n", host->nr_hw_queues); + } else + ql_dbg(ql_dbg_init, base_vha, 0x0193, + "blk/scsi-mq disabled.\n"); + qlt_probe_one_stage1(base_vha, ha); pci_save_state(pdev); @@ -2827,8 +2848,14 @@ static void qla2x00_destroy_mbx_wq(struct qla_hw_data *ha) host->can_queue, base_vha->req, base_vha->mgmt_svr_loop_id, host->sg_tablesize); - if (ha->mqenable) + if (ha->mqenable) { ha->wq = alloc_workqueue("qla2xxx_wq", WQ_MEM_RECLAIM, 1); + /* Create start of day qpairs for Block MQ */ + if (shost_use_blk_mq(host)) { + for (i = 0; i < ha->max_qpairs; i++) + qla2xxx_create_qpair(base_vha, 5, 0); + } + } if (ha->flags.running_gold_fw) goto skip_dpc;