From patchwork Thu Sep 12 18:09:08 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Himanshu Madhani X-Patchwork-Id: 11143631 Return-Path: Received: from mail.kernel.org (pdx-korg-mail-1.web.codeaurora.org [172.30.200.123]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id 8B11B14ED for ; Thu, 12 Sep 2019 18:09:37 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 6250F2081B for ; Thu, 12 Sep 2019 18:09:37 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=marvell.com header.i=@marvell.com header.b="MBTXYNZR" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726909AbfILSJh (ORCPT ); Thu, 12 Sep 2019 14:09:37 -0400 Received: from mx0a-0016f401.pphosted.com ([67.231.148.174]:10440 "EHLO mx0b-0016f401.pphosted.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1726894AbfILSJg (ORCPT ); Thu, 12 Sep 2019 14:09:36 -0400 Received: from pps.filterd (m0045849.ppops.net [127.0.0.1]) by mx0a-0016f401.pphosted.com (8.16.0.42/8.16.0.42) with SMTP id x8CI5CGw006870; Thu, 12 Sep 2019 11:09:33 -0700 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=marvell.com; h=from : to : cc : subject : date : message-id : in-reply-to : references : mime-version : content-type; s=pfpt0818; bh=Y+ASFHxAy3qJTqHZce3Cx+P+c870xc6k34X5DbydT5c=; b=MBTXYNZREdzcFe8SFm2cRbMMzTHdxxqUr/v2isoaWVkK1JVJyfL3WDs4hAic+zliEjYX H1NrANvCSKA9ZVmXb6vb1WrRqcZCYGdDRWCt6qmk+4rW35U7mmCAUvLDNTcwRhNcvATB DuOvN8AhTYFTzTQgYSWVuAj17iHl4yfB3X40jOx+Nnl1GOCFvY0r4yjGm0F5QphAi/8i kMAX53yA7sWinj3In3dxtSyO1T3P5eTUwBafIjxsEO1v6Lude/on6dCMu0SV9g6SCVKz fQFxliS5bsRTTUG+Qmji/NVM7AbJwJ6yt5wGk5EKhnydRyDXvj1caRxB79GnL1pyYgMs Jw== Received: from sc-exch04.marvell.com ([199.233.58.184]) by mx0a-0016f401.pphosted.com with ESMTP id 2uytdh066f-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-SHA384 bits=256 verify=NOT); Thu, 12 Sep 2019 11:09:33 -0700 Received: from SC-EXCH01.marvell.com (10.93.176.81) by SC-EXCH04.marvell.com (10.93.176.84) with Microsoft SMTP Server (TLS) id 15.0.1367.3; Thu, 12 Sep 2019 11:09:32 -0700 Received: from maili.marvell.com (10.93.176.43) by SC-EXCH01.marvell.com (10.93.176.81) with Microsoft SMTP Server id 15.0.1367.3 via Frontend Transport; Thu, 12 Sep 2019 11:09:31 -0700 Received: from dut1171.mv.qlogic.com (unknown [10.112.88.18]) by maili.marvell.com (Postfix) with ESMTP id CF7003F703F; Thu, 12 Sep 2019 11:09:31 -0700 (PDT) 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 x8CI9VIG006487; Thu, 12 Sep 2019 11:09:31 -0700 Received: (from root@localhost) by dut1171.mv.qlogic.com (8.14.7/8.14.7/Submit) id x8CI9VNf006486; Thu, 12 Sep 2019 11:09:31 -0700 From: Himanshu Madhani To: , CC: , Subject: [PATCH v2 04/14] qla2xxx: Optimize NPIV tear down process Date: Thu, 12 Sep 2019 11:09:08 -0700 Message-ID: <20190912180918.6436-5-hmadhani@marvell.com> X-Mailer: git-send-email 2.12.0 In-Reply-To: <20190912180918.6436-1-hmadhani@marvell.com> References: <20190912180918.6436-1-hmadhani@marvell.com> MIME-Version: 1.0 X-Proofpoint-Virus-Version: vendor=fsecure engine=2.50.10434:6.0.70,1.0.8 definitions=2019-09-12_09:2019-09-11,2019-09-12 signatures=0 Sender: linux-scsi-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-scsi@vger.kernel.org From: Quinn Tran In the case of NPIV port is being torn down, this patch will set a flag to indicate VPORT_DELETE. This would prevent relogin to be triggered. Signed-off-by: Quinn Tran Signed-off-by: Himanshu Madhani --- drivers/scsi/qla2xxx/qla_attr.c | 2 ++ drivers/scsi/qla2xxx/qla_def.h | 1 + drivers/scsi/qla2xxx/qla_gs.c | 3 ++- drivers/scsi/qla2xxx/qla_mid.c | 32 ++++++++++++++++++++++---------- drivers/scsi/qla2xxx/qla_os.c | 7 ++++++- drivers/scsi/qla2xxx/qla_target.c | 1 + 6 files changed, 34 insertions(+), 12 deletions(-) diff --git a/drivers/scsi/qla2xxx/qla_attr.c b/drivers/scsi/qla2xxx/qla_attr.c index e9c449ef515c..8b3015361428 100644 --- a/drivers/scsi/qla2xxx/qla_attr.c +++ b/drivers/scsi/qla2xxx/qla_attr.c @@ -2920,6 +2920,8 @@ qla24xx_vport_delete(struct fc_vport *fc_vport) struct qla_hw_data *ha = vha->hw; uint16_t id = vha->vp_idx; + set_bit(VPORT_DELETE, &vha->dpc_flags); + while (test_bit(LOOP_RESYNC_ACTIVE, &vha->dpc_flags) || test_bit(FCPORT_UPDATE_NEEDED, &vha->dpc_flags)) msleep(1000); diff --git a/drivers/scsi/qla2xxx/qla_def.h b/drivers/scsi/qla2xxx/qla_def.h index 873a6aef1c5c..fa038568beb6 100644 --- a/drivers/scsi/qla2xxx/qla_def.h +++ b/drivers/scsi/qla2xxx/qla_def.h @@ -4394,6 +4394,7 @@ typedef struct scsi_qla_host { #define IOCB_WORK_ACTIVE 31 #define SET_ZIO_THRESHOLD_NEEDED 32 #define ISP_ABORT_TO_ROM 33 +#define VPORT_DELETE 34 unsigned long pci_flags; #define PFLG_DISCONNECTED 0 /* PCI device removed */ diff --git a/drivers/scsi/qla2xxx/qla_gs.c b/drivers/scsi/qla2xxx/qla_gs.c index dc0e36676313..5298ed10059f 100644 --- a/drivers/scsi/qla2xxx/qla_gs.c +++ b/drivers/scsi/qla2xxx/qla_gs.c @@ -3102,7 +3102,8 @@ int qla24xx_post_gpnid_work(struct scsi_qla_host *vha, port_id_t *id) { struct qla_work_evt *e; - if (test_bit(UNLOADING, &vha->dpc_flags)) + if (test_bit(UNLOADING, &vha->dpc_flags) || + (vha->vp_idx && test_bit(VPORT_DELETE, &vha->dpc_flags))) return 0; e = qla2x00_alloc_work(vha, QLA_EVT_GPNID); diff --git a/drivers/scsi/qla2xxx/qla_mid.c b/drivers/scsi/qla2xxx/qla_mid.c index 1a9a11ae7285..6afad68e5ba2 100644 --- a/drivers/scsi/qla2xxx/qla_mid.c +++ b/drivers/scsi/qla2xxx/qla_mid.c @@ -66,6 +66,7 @@ qla24xx_deallocate_vp_id(scsi_qla_host_t *vha) uint16_t vp_id; struct qla_hw_data *ha = vha->hw; unsigned long flags = 0; + u8 i; mutex_lock(&ha->vport_lock); /* @@ -75,8 +76,9 @@ qla24xx_deallocate_vp_id(scsi_qla_host_t *vha) * ensures no active vp_list traversal while the vport is removed * from the queue) */ - wait_event_timeout(vha->vref_waitq, !atomic_read(&vha->vref_count), - 10*HZ); + for (i = 0; i < 10 && atomic_read(&vha->vref_count); i++) + wait_event_timeout(vha->vref_waitq, + atomic_read(&vha->vref_count), HZ); spin_lock_irqsave(&ha->vport_slock, flags); if (atomic_read(&vha->vref_count)) { @@ -262,6 +264,9 @@ qla2x00_alert_all_vps(struct rsp_que *rsp, uint16_t *mb) spin_lock_irqsave(&ha->vport_slock, flags); list_for_each_entry(vha, &ha->vp_list, list) { if (vha->vp_idx) { + if (test_bit(VPORT_DELETE, &vha->dpc_flags)) + continue; + atomic_inc(&vha->vref_count); spin_unlock_irqrestore(&ha->vport_slock, flags); @@ -300,6 +305,20 @@ qla2x00_alert_all_vps(struct rsp_que *rsp, uint16_t *mb) int qla2x00_vp_abort_isp(scsi_qla_host_t *vha) { + fc_port_t *fcport; + + /* + * To exclusively reset vport, we need to log it out first. + * Note: This control_vp can fail if ISP reset is already + * issued, this is expected, as the vp would be already + * logged out due to ISP reset. + */ + if (!test_bit(ABORT_ISP_ACTIVE, &vha->dpc_flags)) { + qla24xx_control_vp(vha, VCE_COMMAND_DISABLE_VPS_LOGO_ALL); + list_for_each_entry(fcport, &vha->vp_fcports, list) + fcport->logout_on_delete = 0; + } + /* * Physical port will do most of the abort and recovery work. We can * just treat it as a loop down @@ -312,16 +331,9 @@ qla2x00_vp_abort_isp(scsi_qla_host_t *vha) atomic_set(&vha->loop_down_timer, LOOP_DOWN_TIME); } - /* - * To exclusively reset vport, we need to log it out first. Note: this - * control_vp can fail if ISP reset is already issued, this is - * expected, as the vp would be already logged out due to ISP reset. - */ - if (!test_bit(ABORT_ISP_ACTIVE, &vha->dpc_flags)) - qla24xx_control_vp(vha, VCE_COMMAND_DISABLE_VPS_LOGO_ALL); - ql_dbg(ql_dbg_taskm, vha, 0x801d, "Scheduling enable of Vport %d.\n", vha->vp_idx); + return qla24xx_enable_vp(vha); } diff --git a/drivers/scsi/qla2xxx/qla_os.c b/drivers/scsi/qla2xxx/qla_os.c index 42980e52fb41..5eda86ff6606 100644 --- a/drivers/scsi/qla2xxx/qla_os.c +++ b/drivers/scsi/qla2xxx/qla_os.c @@ -1115,9 +1115,14 @@ static inline int test_fcport_count(scsi_qla_host_t *vha) void qla2x00_wait_for_sess_deletion(scsi_qla_host_t *vha) { + u8 i; + qla2x00_mark_all_devices_lost(vha, 0); - wait_event_timeout(vha->fcport_waitQ, test_fcport_count(vha), 10*HZ); + for (i = 0; i < 10; i++) + wait_event_timeout(vha->fcport_waitQ, test_fcport_count(vha), + HZ); + flush_workqueue(vha->hw->wq); } diff --git a/drivers/scsi/qla2xxx/qla_target.c b/drivers/scsi/qla2xxx/qla_target.c index b5315be00b4d..a06e56224a55 100644 --- a/drivers/scsi/qla2xxx/qla_target.c +++ b/drivers/scsi/qla2xxx/qla_target.c @@ -1115,6 +1115,7 @@ void qlt_free_session_done(struct work_struct *work) wake_up_all(&tgt->waitQ); if (!test_bit(PFLG_DRIVER_REMOVING, &base_vha->pci_flags) && + !(vha->vp_idx && test_bit(VPORT_DELETE, &vha->dpc_flags)) && (!tgt || !tgt->tgt_stop) && !LOOP_TRANSITION(vha)) { switch (vha->host->active_mode) { case MODE_INITIATOR: