From patchwork Wed Oct 17 05:59:04 2018 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Suganath Prabu S X-Patchwork-Id: 10644553 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id 30A281057 for ; Wed, 17 Oct 2018 05:59:31 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 1E0EE2A2A5 for ; Wed, 17 Oct 2018 05:59:31 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 115CC2A4D6; Wed, 17 Oct 2018 05:59:31 +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=-8.0 required=2.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,MAILING_LIST_MULTI,RCVD_IN_DNSWL_HI 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 281AD2A2A5 for ; Wed, 17 Oct 2018 05:59:30 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727191AbeJQNx0 (ORCPT ); Wed, 17 Oct 2018 09:53:26 -0400 Received: from mail-yb1-f195.google.com ([209.85.219.195]:36313 "EHLO mail-yb1-f195.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1727142AbeJQNx0 (ORCPT ); Wed, 17 Oct 2018 09:53:26 -0400 Received: by mail-yb1-f195.google.com with SMTP id 5-v6so9892587ybf.3 for ; Tue, 16 Oct 2018 22:59:26 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=broadcom.com; s=google; h=from:to:cc:subject:date:message-id:in-reply-to:references; bh=JKEeSaI0NWMtpYbArZasgm1Rp1ul3p0mgAzF0mTISHs=; b=NedRIZKNBu4n/Uk2fvx5iUfyDeAUyX5zshZkWWFiP9gXWX3B2sq1CfhSwUi3TEoIru XIq4NjTPhotGOtu5rGvZ81nfh7Rx+PKkKM9edUY4AeJmkYn19DO1cxBMJ332mK55voXd hr/gUa0iP57rKRNLKrsEKiz5C/FAkteUGG1Eo= X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:to:cc:subject:date:message-id:in-reply-to :references; bh=JKEeSaI0NWMtpYbArZasgm1Rp1ul3p0mgAzF0mTISHs=; b=pxWQcSFVOb4U6Vxgv+Vep/aGvWQy3JrdAS2mHEkp7l9inQ0XySW7qxFuq4HKfi0Dki IPVYNe6Iq+NsYFCCCQGpSPBtQeCcddiwht6gWslyU5pmrBLy8eYD4U7usnIq0EmqI57w 0aLNnXImUhkVArWk6F9tb7z5qdiiGRrivbb9EYWRbtFAxl9NWO8X5ug3m5CgBIYbM+3y 2KpT4aigYuyw6UoZjvXpgML2TBX98FIOuWf7Yvs20Q9A+YBV62i5kLj3G/t8l7fdD9qH JgjcYDETNr+Nv2nnVVZn5Ybvrm6s0HjsIGrcQU8h6l0HHxTPx7xIGhM0jfU9pHOui2g3 q6YA== X-Gm-Message-State: ABuFfohEejIvZwM3tYVQIYGuoTn21pRdrEqOYpiH9U9x2iAf/zU8wBPW kfEoOMkWBqH5BnIohqIQWgLuNA== X-Google-Smtp-Source: ACcGV613BKn9dDwq3b8p3rEFjeZ8ZHxgODkwBxu2QG/b2RLW5hUlFDAXvbR4EMwyv3s0hE4c0Poxfg== X-Received: by 2002:a5b:50f:: with SMTP id o15-v6mr13042119ybp.7.1539755966073; Tue, 16 Oct 2018 22:59:26 -0700 (PDT) Received: from dhcp-10-123-74-106.dhcp.broadcom.net ([192.19.234.250]) by smtp.gmail.com with ESMTPSA id y1-v6sm3930329ywf.34.2018.10.16.22.59.21 (version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Tue, 16 Oct 2018 22:59:25 -0700 (PDT) From: Suganath Prabu To: helgaas@kernel.org, lukas@wunner.de, linux-scsi@vger.kernel.org, linux-pci@vger.kernel.org, linux-kernel@vger.kernel.org Cc: benh@kernel.crashing.org, ruscur@russell.cc, sbobroff@linux.ibm.com, oohall@gmail.com, andy.shevchenko@gmail.com, Sathya.Prakash@broadcom.com, sreekanth.reddy@broadcom.com, Suganath Prabu Subject: [v5 1/4] mpt3sas: Separate out mpt3sas_wait_for_ioc_to_operational Date: Wed, 17 Oct 2018 11:29:04 +0530 Message-Id: <1539755947-27014-2-git-send-email-suganath-prabu.subramani@broadcom.com> X-Mailer: git-send-email 1.8.3.1 In-Reply-To: <1539755947-27014-1-git-send-email-suganath-prabu.subramani@broadcom.com> References: <1539755947-27014-1-git-send-email-suganath-prabu.subramani@broadcom.com> 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 No functional changes. This section of code "wait for IOC to be operational" is used in many places across the driver, and hence moved this code in to a function "mpt3sas_wait_for_ioc_to_operational()" Signed-off-by: Suganath Prabu --- drivers/scsi/mpt3sas/mpt3sas_base.c | 77 +++++++++++++++++++------------- drivers/scsi/mpt3sas/mpt3sas_base.h | 4 ++ drivers/scsi/mpt3sas/mpt3sas_config.c | 25 +++-------- drivers/scsi/mpt3sas/mpt3sas_ctl.c | 22 ++------- drivers/scsi/mpt3sas/mpt3sas_transport.c | 66 +++++---------------------- 5 files changed, 71 insertions(+), 123 deletions(-) diff --git a/drivers/scsi/mpt3sas/mpt3sas_base.c b/drivers/scsi/mpt3sas/mpt3sas_base.c index 166b607..a6c217c 100644 --- a/drivers/scsi/mpt3sas/mpt3sas_base.c +++ b/drivers/scsi/mpt3sas/mpt3sas_base.c @@ -5079,6 +5079,43 @@ _base_send_ioc_reset(struct MPT3SAS_ADAPTER *ioc, u8 reset_type, int timeout) } /** + * mpt3sas_wait_for_ioc_to_operational - IOC's operational + * state and HBA hot unplug status are checked here. + * @ioc: per adapter object + * @wait_count: timeout in seconds + * + * Return: Waits up to timeout seconds for the IOC to + * become operational. Returns 0 if IOC is present + * and operational; otherwise returns -EFAULT. + */ + +int +mpt3sas_wait_for_ioc_to_operational(struct MPT3SAS_ADAPTER *ioc, + int timeout) +{ + int wait_state_count = 0; + u32 ioc_state; + + ioc_state = mpt3sas_base_get_iocstate(ioc, 1); + while (ioc_state != MPI2_IOC_STATE_OPERATIONAL) { + + if (wait_state_count++ == timeout) { + ioc_err(ioc, "%s: failed due to ioc not operational\n", + __func__); + return -EFAULT; + } + ssleep(1); + ioc_state = mpt3sas_base_get_iocstate(ioc, 1); + ioc_info(ioc, "%s: waiting for operational state(count=%d)\n", + __func__, wait_state_count); + } + if (wait_state_count) + ioc_info(ioc, "ioc is operational\n"); + + return 0; +} + +/** * _base_handshake_req_reply_wait - send request thru doorbell interface * @ioc: per adapter object * @request_bytes: request length @@ -5212,11 +5249,9 @@ mpt3sas_base_sas_iounit_control(struct MPT3SAS_ADAPTER *ioc, Mpi2SasIoUnitControlRequest_t *mpi_request) { u16 smid; - u32 ioc_state; u8 issue_reset = 0; int rc; void *request; - u16 wait_state_count; dinitprintk(ioc, ioc_info(ioc, "%s\n", __func__)); @@ -5228,20 +5263,10 @@ mpt3sas_base_sas_iounit_control(struct MPT3SAS_ADAPTER *ioc, goto out; } - wait_state_count = 0; - ioc_state = mpt3sas_base_get_iocstate(ioc, 1); - while (ioc_state != MPI2_IOC_STATE_OPERATIONAL) { - if (wait_state_count++ == 10) { - ioc_err(ioc, "%s: failed due to ioc not operational\n", - __func__); - rc = -EFAULT; - goto out; - } - ssleep(1); - ioc_state = mpt3sas_base_get_iocstate(ioc, 1); - ioc_info(ioc, "%s: waiting for operational state(count=%d)\n", - __func__, wait_state_count); - } + rc = mpt3sas_wait_for_ioc_to_operational(ioc, + IOC_OPERATIONAL_WAIT_COUNT); + if (rc) + goto out; smid = mpt3sas_base_get_smid(ioc, ioc->base_cb_idx); if (!smid) { @@ -5307,11 +5332,9 @@ mpt3sas_base_scsi_enclosure_processor(struct MPT3SAS_ADAPTER *ioc, Mpi2SepReply_t *mpi_reply, Mpi2SepRequest_t *mpi_request) { u16 smid; - u32 ioc_state; u8 issue_reset = 0; int rc; void *request; - u16 wait_state_count; dinitprintk(ioc, ioc_info(ioc, "%s\n", __func__)); @@ -5323,20 +5346,10 @@ mpt3sas_base_scsi_enclosure_processor(struct MPT3SAS_ADAPTER *ioc, goto out; } - wait_state_count = 0; - ioc_state = mpt3sas_base_get_iocstate(ioc, 1); - while (ioc_state != MPI2_IOC_STATE_OPERATIONAL) { - if (wait_state_count++ == 10) { - ioc_err(ioc, "%s: failed due to ioc not operational\n", - __func__); - rc = -EFAULT; - goto out; - } - ssleep(1); - ioc_state = mpt3sas_base_get_iocstate(ioc, 1); - ioc_info(ioc, "%s: waiting for operational state(count=%d)\n", - __func__, wait_state_count); - } + rc = mpt3sas_wait_for_ioc_to_operational(ioc, + IOC_OPERATIONAL_WAIT_COUNT); + if (rc) + goto out; smid = mpt3sas_base_get_smid(ioc, ioc->base_cb_idx); if (!smid) { diff --git a/drivers/scsi/mpt3sas/mpt3sas_base.h b/drivers/scsi/mpt3sas/mpt3sas_base.h index 8f1d6b0..c860ed2 100644 --- a/drivers/scsi/mpt3sas/mpt3sas_base.h +++ b/drivers/scsi/mpt3sas/mpt3sas_base.h @@ -139,6 +139,8 @@ #define DEFAULT_NUM_FWCHAIN_ELEMTS 8 #define FW_IMG_HDR_READ_TIMEOUT 15 + +#define IOC_OPERATIONAL_WAIT_COUNT 10 /* * NVMe defines */ @@ -1487,6 +1489,8 @@ mpt3sas_wait_for_commands_to_complete(struct MPT3SAS_ADAPTER *ioc); u8 mpt3sas_base_check_cmd_timeout(struct MPT3SAS_ADAPTER *ioc, u8 status, void *mpi_request, int sz); +int mpt3sas_wait_for_ioc_to_operational(struct MPT3SAS_ADAPTER *ioc, + int wait_count); /* scsih shared API */ struct scsi_cmnd *mpt3sas_scsih_scsi_lookup_get(struct MPT3SAS_ADAPTER *ioc, diff --git a/drivers/scsi/mpt3sas/mpt3sas_config.c b/drivers/scsi/mpt3sas/mpt3sas_config.c index 0220944..14a195c 100644 --- a/drivers/scsi/mpt3sas/mpt3sas_config.c +++ b/drivers/scsi/mpt3sas/mpt3sas_config.c @@ -300,11 +300,10 @@ _config_request(struct MPT3SAS_ADAPTER *ioc, Mpi2ConfigRequest_t void *config_page, u16 config_page_sz) { u16 smid; - u32 ioc_state; Mpi2ConfigRequest_t *config_request; int r; u8 retry_count, issue_host_reset = 0; - u16 wait_state_count; + struct config_request mem; u32 ioc_status = UINT_MAX; @@ -361,23 +360,11 @@ _config_request(struct MPT3SAS_ADAPTER *ioc, Mpi2ConfigRequest_t ioc_info(ioc, "%s: attempting retry (%d)\n", __func__, retry_count); } - wait_state_count = 0; - ioc_state = mpt3sas_base_get_iocstate(ioc, 1); - while (ioc_state != MPI2_IOC_STATE_OPERATIONAL) { - if (wait_state_count++ == MPT3_CONFIG_PAGE_DEFAULT_TIMEOUT) { - ioc_err(ioc, "%s: failed due to ioc not operational\n", - __func__); - ioc->config_cmds.status = MPT3_CMD_NOT_USED; - r = -EFAULT; - goto free_mem; - } - ssleep(1); - ioc_state = mpt3sas_base_get_iocstate(ioc, 1); - ioc_info(ioc, "%s: waiting for operational state(count=%d)\n", - __func__, wait_state_count); - } - if (wait_state_count) - ioc_info(ioc, "%s: ioc is operational\n", __func__); + + r = mpt3sas_wait_for_ioc_to_operational(ioc, + MPT3_CONFIG_PAGE_DEFAULT_TIMEOUT); + if (r) + goto free_mem; smid = mpt3sas_base_get_smid(ioc, ioc->config_cb_idx); if (!smid) { diff --git a/drivers/scsi/mpt3sas/mpt3sas_ctl.c b/drivers/scsi/mpt3sas/mpt3sas_ctl.c index 0f6305c..34c11a5 100644 --- a/drivers/scsi/mpt3sas/mpt3sas_ctl.c +++ b/drivers/scsi/mpt3sas/mpt3sas_ctl.c @@ -641,7 +641,6 @@ _ctl_do_mpt_command(struct MPT3SAS_ADAPTER *ioc, struct mpt3_ioctl_command karg, MPI2DefaultReply_t *mpi_reply; Mpi26NVMeEncapsulatedRequest_t *nvme_encap_request = NULL; struct _pcie_device *pcie_device = NULL; - u32 ioc_state; u16 smid; u8 timeout; u8 issue_reset; @@ -654,7 +653,6 @@ _ctl_do_mpt_command(struct MPT3SAS_ADAPTER *ioc, struct mpt3_ioctl_command karg, dma_addr_t data_in_dma = 0; size_t data_in_sz = 0; long ret; - u16 wait_state_count; u16 device_handle = MPT3SAS_INVALID_DEVICE_HANDLE; u8 tr_method = MPI26_SCSITASKMGMT_MSGFLAGS_PROTOCOL_LVL_RST_PCIE; @@ -666,22 +664,10 @@ _ctl_do_mpt_command(struct MPT3SAS_ADAPTER *ioc, struct mpt3_ioctl_command karg, goto out; } - wait_state_count = 0; - ioc_state = mpt3sas_base_get_iocstate(ioc, 1); - while (ioc_state != MPI2_IOC_STATE_OPERATIONAL) { - if (wait_state_count++ == 10) { - ioc_err(ioc, "%s: failed due to ioc not operational\n", - __func__); - ret = -EFAULT; - goto out; - } - ssleep(1); - ioc_state = mpt3sas_base_get_iocstate(ioc, 1); - ioc_info(ioc, "%s: waiting for operational state(count=%d)\n", - __func__, wait_state_count); - } - if (wait_state_count) - ioc_info(ioc, "%s: ioc is operational\n", __func__); + ret = mpt3sas_wait_for_ioc_to_operational(ioc, + IOC_OPERATIONAL_WAIT_COUNT); + if (ret) + goto out; mpi_request = kzalloc(ioc->request_sz, GFP_KERNEL); if (!mpi_request) { diff --git a/drivers/scsi/mpt3sas/mpt3sas_transport.c b/drivers/scsi/mpt3sas/mpt3sas_transport.c index 031b420..7acb408 100644 --- a/drivers/scsi/mpt3sas/mpt3sas_transport.c +++ b/drivers/scsi/mpt3sas/mpt3sas_transport.c @@ -296,7 +296,6 @@ _transport_expander_report_manufacture(struct MPT3SAS_ADAPTER *ioc, struct rep_manu_request *manufacture_request; int rc; u16 smid; - u32 ioc_state; void *psge; u8 issue_reset = 0; void *data_out = NULL; @@ -304,7 +303,6 @@ _transport_expander_report_manufacture(struct MPT3SAS_ADAPTER *ioc, dma_addr_t data_in_dma; size_t data_in_sz; size_t data_out_sz; - u16 wait_state_count; if (ioc->shost_recovery || ioc->pci_error_recovery) { ioc_info(ioc, "%s: host reset in progress!\n", __func__); @@ -320,22 +318,10 @@ _transport_expander_report_manufacture(struct MPT3SAS_ADAPTER *ioc, } ioc->transport_cmds.status = MPT3_CMD_PENDING; - wait_state_count = 0; - ioc_state = mpt3sas_base_get_iocstate(ioc, 1); - while (ioc_state != MPI2_IOC_STATE_OPERATIONAL) { - if (wait_state_count++ == 10) { - ioc_err(ioc, "%s: failed due to ioc not operational\n", - __func__); - rc = -EFAULT; - goto out; - } - ssleep(1); - ioc_state = mpt3sas_base_get_iocstate(ioc, 1); - ioc_info(ioc, "%s: waiting for operational state(count=%d)\n", - __func__, wait_state_count); - } - if (wait_state_count) - ioc_info(ioc, "%s: ioc is operational\n", __func__); + rc = mpt3sas_wait_for_ioc_to_operational(ioc, + IOC_OPERATIONAL_WAIT_COUNT); + if (rc) + goto out; smid = mpt3sas_base_get_smid(ioc, ioc->transport_cb_idx); if (!smid) { @@ -1077,13 +1063,11 @@ _transport_get_expander_phy_error_log(struct MPT3SAS_ADAPTER *ioc, struct phy_error_log_reply *phy_error_log_reply; int rc; u16 smid; - u32 ioc_state; void *psge; u8 issue_reset = 0; void *data_out = NULL; dma_addr_t data_out_dma; u32 sz; - u16 wait_state_count; if (ioc->shost_recovery || ioc->pci_error_recovery) { ioc_info(ioc, "%s: host reset in progress!\n", __func__); @@ -1099,22 +1083,10 @@ _transport_get_expander_phy_error_log(struct MPT3SAS_ADAPTER *ioc, } ioc->transport_cmds.status = MPT3_CMD_PENDING; - wait_state_count = 0; - ioc_state = mpt3sas_base_get_iocstate(ioc, 1); - while (ioc_state != MPI2_IOC_STATE_OPERATIONAL) { - if (wait_state_count++ == 10) { - ioc_err(ioc, "%s: failed due to ioc not operational\n", - __func__); - rc = -EFAULT; - goto out; - } - ssleep(1); - ioc_state = mpt3sas_base_get_iocstate(ioc, 1); - ioc_info(ioc, "%s: waiting for operational state(count=%d)\n", - __func__, wait_state_count); - } - if (wait_state_count) - ioc_info(ioc, "%s: ioc is operational\n", __func__); + rc = mpt3sas_wait_for_ioc_to_operational(ioc, + IOC_OPERATIONAL_WAIT_COUNT); + if (rc) + goto out; smid = mpt3sas_base_get_smid(ioc, ioc->transport_cb_idx); if (!smid) { @@ -1381,13 +1353,11 @@ _transport_expander_phy_control(struct MPT3SAS_ADAPTER *ioc, struct phy_control_reply *phy_control_reply; int rc; u16 smid; - u32 ioc_state; void *psge; u8 issue_reset = 0; void *data_out = NULL; dma_addr_t data_out_dma; u32 sz; - u16 wait_state_count; if (ioc->shost_recovery || ioc->pci_error_recovery) { ioc_info(ioc, "%s: host reset in progress!\n", __func__); @@ -1403,22 +1373,10 @@ _transport_expander_phy_control(struct MPT3SAS_ADAPTER *ioc, } ioc->transport_cmds.status = MPT3_CMD_PENDING; - wait_state_count = 0; - ioc_state = mpt3sas_base_get_iocstate(ioc, 1); - while (ioc_state != MPI2_IOC_STATE_OPERATIONAL) { - if (wait_state_count++ == 10) { - ioc_err(ioc, "%s: failed due to ioc not operational\n", - __func__); - rc = -EFAULT; - goto out; - } - ssleep(1); - ioc_state = mpt3sas_base_get_iocstate(ioc, 1); - ioc_info(ioc, "%s: waiting for operational state(count=%d)\n", - __func__, wait_state_count); - } - if (wait_state_count) - ioc_info(ioc, "%s: ioc is operational\n", __func__); + rc = mpt3sas_wait_for_ioc_to_operational(ioc, + IOC_OPERATIONAL_WAIT_COUNT); + if (rc) + goto out; smid = mpt3sas_base_get_smid(ioc, ioc->transport_cb_idx); if (!smid) {