From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id ADF6452F7D; Sun, 7 Apr 2024 13:11:41 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1712495501; cv=none; b=I1MOv32wySaZxt6IEJdXsg6/7CMLrf1yfXPsMDFj6xZ9k/FiOohqE/LUhNUOZnAE+TKZ0k1KQsu/F42LCfXdRhOpUdUoEn3e5WCJryaLFUTF2CuYdFAt6OV7ydWKeirccZvg3NzSGBZ+AxDPumdcDGSUEToGFbIawVk2FuQiejE= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1712495501; c=relaxed/simple; bh=7HKnDkjbN7wVIAs9pKtsT904pSc1EH39QCVIhU/HJBU=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=VdtBTBvr/I4KUff5vixBCZhO5ze7S5A48qcfx1/NYKYYFGfwFt7oBC9f+i2sevjQ37wQ8KpM8bDD6rXRw3SkWt4TU07U9E4YKwr/A1l4pqQfkXdF+ZPEH+27eP3Z6bAeCDOUOwvyoOmvapqtaRxPMlmouVNTWe0cJG9+ntR5oHw= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=RmnWRdnC; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="RmnWRdnC" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 51AD6C43399; Sun, 7 Apr 2024 13:11:40 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1712495501; bh=7HKnDkjbN7wVIAs9pKtsT904pSc1EH39QCVIhU/HJBU=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=RmnWRdnCD6RfG+RRtagEloN15mblD7qse7PUdT03G8QYVfPQDm2+P7fooyoiQ2Cpj RDTV2mT/9ZY1p8TTE2omcymNE/x3htMJqddlgCY9X483sP521B/1aGN4O477NcEKfi 28txTMow/EZqbP1M+UkfOJfogB6SCPXsRc3DQzgqaXr+5xSChBiPgmpAvQ8UabRR0/ 1Chz2oizQmTbUBvPa86Dnbp4km3O0BNpaxHRMapOYA12lS0iucr0fxiUBzztch655v QY0ouEoiR6PzkBFt2JpSbxCPMdlI8nZJKHtzt0wYF2nt2VUX+YmGxavs6hu9Yvs/UI TDI7aPyex8l4A== From: Sasha Levin To: linux-kernel@vger.kernel.org, stable@vger.kernel.org Cc: Justin Tee , "Martin K . Petersen" , Sasha Levin , james.smart@broadcom.com, dick.kennedy@broadcom.com, jejb@linux.ibm.com, linux-scsi@vger.kernel.org Subject: [PATCH AUTOSEL 6.8 07/25] scsi: lpfc: Use a dedicated lock for ras_fwlog state Date: Sun, 7 Apr 2024 09:10:55 -0400 Message-ID: <20240407131130.1050321-7-sashal@kernel.org> X-Mailer: git-send-email 2.43.0 In-Reply-To: <20240407131130.1050321-1-sashal@kernel.org> References: <20240407131130.1050321-1-sashal@kernel.org> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-stable: review X-Patchwork-Hint: Ignore X-stable-base: Linux 6.8.4 Content-Transfer-Encoding: 8bit From: Justin Tee [ Upstream commit f733a76ea0a9a84aee4ac41b81fad4d610ecbd8e ] To reduce usage of and contention for hbalock, a separate dedicated lock is used to protect ras_fwlog state. Signed-off-by: Justin Tee Link: https://lore.kernel.org/r/20240305200503.57317-8-justintee8345@gmail.com Signed-off-by: Martin K. Petersen Signed-off-by: Sasha Levin --- drivers/scsi/lpfc/lpfc.h | 1 + drivers/scsi/lpfc/lpfc_attr.c | 4 ++-- drivers/scsi/lpfc/lpfc_bsg.c | 20 ++++++++++---------- drivers/scsi/lpfc/lpfc_debugfs.c | 12 ++++++------ drivers/scsi/lpfc/lpfc_init.c | 3 +++ drivers/scsi/lpfc/lpfc_sli.c | 20 ++++++++++---------- 6 files changed, 32 insertions(+), 28 deletions(-) diff --git a/drivers/scsi/lpfc/lpfc.h b/drivers/scsi/lpfc/lpfc.h index be016732ab2ea..9670cb2bf198e 100644 --- a/drivers/scsi/lpfc/lpfc.h +++ b/drivers/scsi/lpfc/lpfc.h @@ -1429,6 +1429,7 @@ struct lpfc_hba { struct timer_list inactive_vmid_poll; /* RAS Support */ + spinlock_t ras_fwlog_lock; /* do not take while holding another lock */ struct lpfc_ras_fwlog ras_fwlog; uint32_t iocb_cnt; diff --git a/drivers/scsi/lpfc/lpfc_attr.c b/drivers/scsi/lpfc/lpfc_attr.c index d3a5d6ecdf7d2..6f97a04171c44 100644 --- a/drivers/scsi/lpfc/lpfc_attr.c +++ b/drivers/scsi/lpfc/lpfc_attr.c @@ -5864,9 +5864,9 @@ lpfc_ras_fwlog_buffsize_set(struct lpfc_hba *phba, uint val) if (phba->cfg_ras_fwlog_func != PCI_FUNC(phba->pcidev->devfn)) return -EINVAL; - spin_lock_irq(&phba->hbalock); + spin_lock_irq(&phba->ras_fwlog_lock); state = phba->ras_fwlog.state; - spin_unlock_irq(&phba->hbalock); + spin_unlock_irq(&phba->ras_fwlog_lock); if (state == REG_INPROGRESS) { lpfc_printf_log(phba, KERN_ERR, LOG_SLI, "6147 RAS Logging " diff --git a/drivers/scsi/lpfc/lpfc_bsg.c b/drivers/scsi/lpfc/lpfc_bsg.c index 595dca92e8db5..593b1cf78979e 100644 --- a/drivers/scsi/lpfc/lpfc_bsg.c +++ b/drivers/scsi/lpfc/lpfc_bsg.c @@ -5070,12 +5070,12 @@ lpfc_bsg_get_ras_config(struct bsg_job *job) bsg_reply->reply_data.vendor_reply.vendor_rsp; /* Current logging state */ - spin_lock_irq(&phba->hbalock); + spin_lock_irq(&phba->ras_fwlog_lock); if (ras_fwlog->state == ACTIVE) ras_reply->state = LPFC_RASLOG_STATE_RUNNING; else ras_reply->state = LPFC_RASLOG_STATE_STOPPED; - spin_unlock_irq(&phba->hbalock); + spin_unlock_irq(&phba->ras_fwlog_lock); ras_reply->log_level = phba->ras_fwlog.fw_loglevel; ras_reply->log_buff_sz = phba->cfg_ras_fwlog_buffsize; @@ -5132,13 +5132,13 @@ lpfc_bsg_set_ras_config(struct bsg_job *job) if (action == LPFC_RASACTION_STOP_LOGGING) { /* Check if already disabled */ - spin_lock_irq(&phba->hbalock); + spin_lock_irq(&phba->ras_fwlog_lock); if (ras_fwlog->state != ACTIVE) { - spin_unlock_irq(&phba->hbalock); + spin_unlock_irq(&phba->ras_fwlog_lock); rc = -ESRCH; goto ras_job_error; } - spin_unlock_irq(&phba->hbalock); + spin_unlock_irq(&phba->ras_fwlog_lock); /* Disable logging */ lpfc_ras_stop_fwlog(phba); @@ -5149,10 +5149,10 @@ lpfc_bsg_set_ras_config(struct bsg_job *job) * FW-logging with new log-level. Return status * "Logging already Running" to caller. **/ - spin_lock_irq(&phba->hbalock); + spin_lock_irq(&phba->ras_fwlog_lock); if (ras_fwlog->state != INACTIVE) action_status = -EINPROGRESS; - spin_unlock_irq(&phba->hbalock); + spin_unlock_irq(&phba->ras_fwlog_lock); /* Enable logging */ rc = lpfc_sli4_ras_fwlog_init(phba, log_level, @@ -5268,13 +5268,13 @@ lpfc_bsg_get_ras_fwlog(struct bsg_job *job) goto ras_job_error; /* Logging to be stopped before reading */ - spin_lock_irq(&phba->hbalock); + spin_lock_irq(&phba->ras_fwlog_lock); if (ras_fwlog->state == ACTIVE) { - spin_unlock_irq(&phba->hbalock); + spin_unlock_irq(&phba->ras_fwlog_lock); rc = -EINPROGRESS; goto ras_job_error; } - spin_unlock_irq(&phba->hbalock); + spin_unlock_irq(&phba->ras_fwlog_lock); if (job->request_len < sizeof(struct fc_bsg_request) + diff --git a/drivers/scsi/lpfc/lpfc_debugfs.c b/drivers/scsi/lpfc/lpfc_debugfs.c index ea9b42225e629..20662b4f339eb 100644 --- a/drivers/scsi/lpfc/lpfc_debugfs.c +++ b/drivers/scsi/lpfc/lpfc_debugfs.c @@ -2196,12 +2196,12 @@ static int lpfc_debugfs_ras_log_data(struct lpfc_hba *phba, memset(buffer, 0, size); - spin_lock_irq(&phba->hbalock); + spin_lock_irq(&phba->ras_fwlog_lock); if (phba->ras_fwlog.state != ACTIVE) { - spin_unlock_irq(&phba->hbalock); + spin_unlock_irq(&phba->ras_fwlog_lock); return -EINVAL; } - spin_unlock_irq(&phba->hbalock); + spin_unlock_irq(&phba->ras_fwlog_lock); list_for_each_entry_safe(dmabuf, next, &phba->ras_fwlog.fwlog_buff_list, list) { @@ -2252,13 +2252,13 @@ lpfc_debugfs_ras_log_open(struct inode *inode, struct file *file) int size; int rc = -ENOMEM; - spin_lock_irq(&phba->hbalock); + spin_lock_irq(&phba->ras_fwlog_lock); if (phba->ras_fwlog.state != ACTIVE) { - spin_unlock_irq(&phba->hbalock); + spin_unlock_irq(&phba->ras_fwlog_lock); rc = -EINVAL; goto out; } - spin_unlock_irq(&phba->hbalock); + spin_unlock_irq(&phba->ras_fwlog_lock); if (check_mul_overflow(LPFC_RAS_MIN_BUFF_POST_SIZE, phba->cfg_ras_fwlog_buffsize, &size)) diff --git a/drivers/scsi/lpfc/lpfc_init.c b/drivers/scsi/lpfc/lpfc_init.c index 7820a1a7aa6d1..858ca395c0bf0 100644 --- a/drivers/scsi/lpfc/lpfc_init.c +++ b/drivers/scsi/lpfc/lpfc_init.c @@ -7698,6 +7698,9 @@ lpfc_setup_driver_resource_phase1(struct lpfc_hba *phba) "NVME" : " "), (phba->nvmet_support ? "NVMET" : " ")); + /* ras_fwlog state */ + spin_lock_init(&phba->ras_fwlog_lock); + /* Initialize the IO buffer list used by driver for SLI3 SCSI */ spin_lock_init(&phba->scsi_buf_list_get_lock); INIT_LIST_HEAD(&phba->lpfc_scsi_buf_list_get); diff --git a/drivers/scsi/lpfc/lpfc_sli.c b/drivers/scsi/lpfc/lpfc_sli.c index c00b945947b1d..e1821072552a5 100644 --- a/drivers/scsi/lpfc/lpfc_sli.c +++ b/drivers/scsi/lpfc/lpfc_sli.c @@ -6849,9 +6849,9 @@ lpfc_ras_stop_fwlog(struct lpfc_hba *phba) { struct lpfc_ras_fwlog *ras_fwlog = &phba->ras_fwlog; - spin_lock_irq(&phba->hbalock); + spin_lock_irq(&phba->ras_fwlog_lock); ras_fwlog->state = INACTIVE; - spin_unlock_irq(&phba->hbalock); + spin_unlock_irq(&phba->ras_fwlog_lock); /* Disable FW logging to host memory */ writel(LPFC_CTL_PDEV_CTL_DDL_RAS, @@ -6894,9 +6894,9 @@ lpfc_sli4_ras_dma_free(struct lpfc_hba *phba) ras_fwlog->lwpd.virt = NULL; } - spin_lock_irq(&phba->hbalock); + spin_lock_irq(&phba->ras_fwlog_lock); ras_fwlog->state = INACTIVE; - spin_unlock_irq(&phba->hbalock); + spin_unlock_irq(&phba->ras_fwlog_lock); } /** @@ -6998,9 +6998,9 @@ lpfc_sli4_ras_mbox_cmpl(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb) goto disable_ras; } - spin_lock_irq(&phba->hbalock); + spin_lock_irq(&phba->ras_fwlog_lock); ras_fwlog->state = ACTIVE; - spin_unlock_irq(&phba->hbalock); + spin_unlock_irq(&phba->ras_fwlog_lock); mempool_free(pmb, phba->mbox_mem_pool); return; @@ -7032,9 +7032,9 @@ lpfc_sli4_ras_fwlog_init(struct lpfc_hba *phba, uint32_t len = 0, fwlog_buffsize, fwlog_entry_count; int rc = 0; - spin_lock_irq(&phba->hbalock); + spin_lock_irq(&phba->ras_fwlog_lock); ras_fwlog->state = INACTIVE; - spin_unlock_irq(&phba->hbalock); + spin_unlock_irq(&phba->ras_fwlog_lock); fwlog_buffsize = (LPFC_RAS_MIN_BUFF_POST_SIZE * phba->cfg_ras_fwlog_buffsize); @@ -7095,9 +7095,9 @@ lpfc_sli4_ras_fwlog_init(struct lpfc_hba *phba, mbx_fwlog->u.request.lwpd.addr_lo = putPaddrLow(ras_fwlog->lwpd.phys); mbx_fwlog->u.request.lwpd.addr_hi = putPaddrHigh(ras_fwlog->lwpd.phys); - spin_lock_irq(&phba->hbalock); + spin_lock_irq(&phba->ras_fwlog_lock); ras_fwlog->state = REG_INPROGRESS; - spin_unlock_irq(&phba->hbalock); + spin_unlock_irq(&phba->ras_fwlog_lock); mbox->vport = phba->pport; mbox->mbox_cmpl = lpfc_sli4_ras_mbox_cmpl; -- 2.43.0