From patchwork Tue Aug 18 12:31:54 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Nilesh Javali X-Patchwork-Id: 11720689 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 8BBA6618 for ; Tue, 18 Aug 2020 12:33:43 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 72DE2206DA for ; Tue, 18 Aug 2020 12:33:43 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=marvell.com header.i=@marvell.com header.b="HvftL1/g" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726651AbgHRMdm (ORCPT ); Tue, 18 Aug 2020 08:33:42 -0400 Received: from mx0a-0016f401.pphosted.com ([67.231.148.174]:23032 "EHLO mx0b-0016f401.pphosted.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1726653AbgHRMdl (ORCPT ); Tue, 18 Aug 2020 08:33:41 -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 07ICTLwQ027326 for ; Tue, 18 Aug 2020 05:33:41 -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=pfpt0220; bh=I2zn+rppTgBgUrNNhqoAGGmEK5VXHzAizTnQoxJ014E=; b=HvftL1/gkW+zhaVBf8BnRmA7mNxbwFqWnyuTTh7QZ3k1VYAjEax4cTWDOAkaXVJirPnZ onu2TDJUr/f8KM4dsseyh29AyelQCJc4+VT52lOzTs0D2C89XY6bvdUH5lLck+2YOYRy l8pn64IgCqC4kG68eBZM0kEUee7OyVuDh8+Ae3RnmrPnCjbIu5A1P+GGMIlCCPc7kYfa DdcI4zarcsiPXPCs1HeeME6tLo8sXrDv9H/0MCjjZ7ScYB/tPf6r55Hu53iVKxavH0Fb +watY8MR1ls+eTQvy5+9hzG2sK3LjN33V8GMQ8UzQzLCSR+WxsZ6XfQXKy/atK1S0fr0 gg== Received: from sc-exch04.marvell.com ([199.233.58.184]) by mx0a-0016f401.pphosted.com with ESMTP id 3304fhjeht-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-SHA384 bits=256 verify=NOT) for ; Tue, 18 Aug 2020 05:33:40 -0700 Received: from DC5-EXCH02.marvell.com (10.69.176.39) by SC-EXCH04.marvell.com (10.93.176.84) with Microsoft SMTP Server (TLS) id 15.0.1497.2; Tue, 18 Aug 2020 05:33:40 -0700 Received: from maili.marvell.com (10.69.176.80) by DC5-EXCH02.marvell.com (10.69.176.39) with Microsoft SMTP Server id 15.0.1497.2 via Frontend Transport; Tue, 18 Aug 2020 05:33:39 -0700 Received: from dut1171.mv.qlogic.com (unknown [10.112.88.18]) by maili.marvell.com (Postfix) with ESMTP id A5F783F7043; Tue, 18 Aug 2020 05:33:39 -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 07ICXdge020417; Tue, 18 Aug 2020 05:33:39 -0700 Received: (from root@localhost) by dut1171.mv.qlogic.com (8.14.7/8.14.7/Submit) id 07ICXdcD020416; Tue, 18 Aug 2020 05:33:39 -0700 From: Nilesh Javali To: CC: , Subject: [PATCH 03/12] qla2xxx: Allow dev_loss_tmo setting for FC-NVMe devices Date: Tue, 18 Aug 2020 05:31:54 -0700 Message-ID: <20200818123203.20361-4-njavali@marvell.com> X-Mailer: git-send-email 2.12.0 In-Reply-To: <20200818123203.20361-1-njavali@marvell.com> References: <20200818123203.20361-1-njavali@marvell.com> MIME-Version: 1.0 X-Proofpoint-Virus-Version: vendor=fsecure engine=2.50.10434:6.0.235,18.0.687 definitions=2020-08-18_07:2020-08-18,2020-08-18 signatures=0 Sender: linux-scsi-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-scsi@vger.kernel.org From: Arun Easi Add a remote port debugfs entry to get/set dev_loss_tmo for NVMe devices. Signed-off-by: Arun Easi Signed-off-by: Himanshu Madhani Signed-off-by: Nilesh Javali Reported-by: kernel test robot Reported-by: kernel test robot --- drivers/scsi/qla2xxx/qla_dfs.c | 54 ++++++++++++++++++++++++++++++++++ 1 file changed, 54 insertions(+) diff --git a/drivers/scsi/qla2xxx/qla_dfs.c b/drivers/scsi/qla2xxx/qla_dfs.c index 3c4b9b549b17..7482e6bf7f7f 100644 --- a/drivers/scsi/qla2xxx/qla_dfs.c +++ b/drivers/scsi/qla2xxx/qla_dfs.c @@ -12,6 +12,57 @@ static struct dentry *qla2x00_dfs_root; static atomic_t qla2x00_dfs_root_count; +#define QLA_DFS_RPORT_DEVLOSS_TMO 1 + +static int +qla_dfs_rport_get(struct fc_port *fp, int attr_id, u64 *val) +{ + switch (attr_id) { + case QLA_DFS_RPORT_DEVLOSS_TMO: + /* Only supported for FC-NVMe devices that are registered. */ + if (!(fp->nvme_flag & NVME_FLAG_REGISTERED)) + return -EIO; + *val = fp->nvme_remote_port->dev_loss_tmo; + break; + default: + return -EINVAL; + } + return 0; +} + +static int +qla_dfs_rport_set(struct fc_port *fp, int attr_id, u64 val) +{ + switch (attr_id) { + case QLA_DFS_RPORT_DEVLOSS_TMO: + /* Only supported for FC-NVMe devices that are registered. */ + if (!(fp->nvme_flag & NVME_FLAG_REGISTERED)) + return -EIO; + return nvme_fc_set_remoteport_devloss(fp->nvme_remote_port, + val); + default: + return -EINVAL; + } + return 0; +} + +#define DEFINE_QLA_DFS_RPORT_RW_ATTR(_attr_id, _attr) \ +static int qla_dfs_rport_##_attr##_get(void *data, u64 *val) \ +{ \ + struct fc_port *fp = data; \ + return qla_dfs_rport_get(fp, _attr_id, val); \ +} \ +static int qla_dfs_rport_##_attr##_set(void *data, u64 val) \ +{ \ + struct fc_port *fp = data; \ + return qla_dfs_rport_set(fp, _attr_id, val); \ +} \ +DEFINE_DEBUGFS_ATTRIBUTE(qla_dfs_rport_##_attr##_fops, \ + qla_dfs_rport_##_attr##_get, \ + qla_dfs_rport_##_attr##_set, "%llu\n") + +DEFINE_QLA_DFS_RPORT_RW_ATTR(QLA_DFS_RPORT_DEVLOSS_TMO, dev_loss_tmo); + void qla2x00_dfs_create_rport(scsi_qla_host_t *vha, struct fc_port *fp) { @@ -24,6 +75,9 @@ qla2x00_dfs_create_rport(scsi_qla_host_t *vha, struct fc_port *fp) fp->dfs_rport_dir = debugfs_create_dir(wwn, vha->dfs_rport_root); if (!fp->dfs_rport_dir) return; + if (NVME_TARGET(vha->hw, fp)) + debugfs_create_file("dev_loss_tmo", 0600, fp->dfs_rport_dir, + fp, &qla_dfs_rport_dev_loss_tmo_fops); } void