From patchwork Fri Nov 9 14:06:32 2018 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: John Garry X-Patchwork-Id: 10675985 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 AA1D013B0 for ; Fri, 9 Nov 2018 14:05:21 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 99DAF2EA91 for ; Fri, 9 Nov 2018 14:05:21 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 8E94B2EA96; Fri, 9 Nov 2018 14:05:21 +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=-7.9 required=2.0 tests=BAYES_00,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 2100D2EA91 for ; Fri, 9 Nov 2018 14:05:21 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1728326AbeKIXp7 (ORCPT ); Fri, 9 Nov 2018 18:45:59 -0500 Received: from szxga06-in.huawei.com ([45.249.212.32]:47734 "EHLO huawei.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1728026AbeKIXpx (ORCPT ); Fri, 9 Nov 2018 18:45:53 -0500 Received: from DGGEMS405-HUB.china.huawei.com (unknown [172.30.72.60]) by Forcepoint Email with ESMTP id DD0B255EAAD; Fri, 9 Nov 2018 22:05:04 +0800 (CST) Received: from localhost.localdomain (10.67.212.75) by DGGEMS405-HUB.china.huawei.com (10.3.19.205) with Microsoft SMTP Server id 14.3.408.0; Fri, 9 Nov 2018 22:04:54 +0800 From: John Garry To: , CC: , , , Xiang Chen , John Garry Subject: [PATCH 1/5] scsi: hisi_sas: Create separate host attributes per HBA Date: Fri, 9 Nov 2018 22:06:32 +0800 Message-ID: <1541772396-161814-2-git-send-email-john.garry@huawei.com> X-Mailer: git-send-email 2.8.1 In-Reply-To: <1541772396-161814-1-git-send-email-john.garry@huawei.com> References: <1541772396-161814-1-git-send-email-john.garry@huawei.com> MIME-Version: 1.0 X-Originating-IP: [10.67.212.75] X-CFilter-Loop: Reflected 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: Xiang Chen Currently all the three HBA (v1/v2/v3 HW) share the same host attribute. To support each HBA having separate attributes in future, create per-HBA attributes. Signed-off-by: Xiang Chen Signed-off-by: John Garry --- drivers/scsi/hisi_sas/hisi_sas.h | 1 - drivers/scsi/hisi_sas/hisi_sas_main.c | 6 ------ drivers/scsi/hisi_sas/hisi_sas_v1_hw.c | 7 ++++++- drivers/scsi/hisi_sas/hisi_sas_v2_hw.c | 7 ++++++- drivers/scsi/hisi_sas/hisi_sas_v3_hw.c | 7 ++++++- 5 files changed, 18 insertions(+), 10 deletions(-) diff --git a/drivers/scsi/hisi_sas/hisi_sas.h b/drivers/scsi/hisi_sas/hisi_sas.h index 0ddb53c..94a9e13 100644 --- a/drivers/scsi/hisi_sas/hisi_sas.h +++ b/drivers/scsi/hisi_sas/hisi_sas.h @@ -468,7 +468,6 @@ extern int hisi_sas_probe(struct platform_device *pdev, extern int hisi_sas_slave_configure(struct scsi_device *sdev); extern int hisi_sas_scan_finished(struct Scsi_Host *shost, unsigned long time); extern void hisi_sas_scan_start(struct Scsi_Host *shost); -extern struct device_attribute *host_attrs[]; extern int hisi_sas_host_reset(struct Scsi_Host *shost, int reset_type); extern void hisi_sas_phy_down(struct hisi_hba *hisi_hba, int phy_no, int rdy); extern void hisi_sas_slot_task_free(struct hisi_hba *hisi_hba, diff --git a/drivers/scsi/hisi_sas/hisi_sas_main.c b/drivers/scsi/hisi_sas/hisi_sas_main.c index b3f01d5..8633ff9 100644 --- a/drivers/scsi/hisi_sas/hisi_sas_main.c +++ b/drivers/scsi/hisi_sas/hisi_sas_main.c @@ -1994,12 +1994,6 @@ void hisi_sas_kill_tasklets(struct hisi_hba *hisi_hba) struct scsi_transport_template *hisi_sas_stt; EXPORT_SYMBOL_GPL(hisi_sas_stt); -struct device_attribute *host_attrs[] = { - &dev_attr_phy_event_threshold, - NULL, -}; -EXPORT_SYMBOL_GPL(host_attrs); - static struct sas_domain_function_template hisi_sas_transport_ops = { .lldd_dev_found = hisi_sas_dev_found, .lldd_dev_gone = hisi_sas_dev_gone, diff --git a/drivers/scsi/hisi_sas/hisi_sas_v1_hw.c b/drivers/scsi/hisi_sas/hisi_sas_v1_hw.c index f0e457e..d24342b 100644 --- a/drivers/scsi/hisi_sas/hisi_sas_v1_hw.c +++ b/drivers/scsi/hisi_sas/hisi_sas_v1_hw.c @@ -1799,6 +1799,11 @@ static int hisi_sas_v1_init(struct hisi_hba *hisi_hba) return 0; } +static struct device_attribute *host_attrs_v1_hw[] = { + &dev_attr_phy_event_threshold, + NULL +}; + static struct scsi_host_template sht_v1_hw = { .name = DRV_NAME, .module = THIS_MODULE, @@ -1817,7 +1822,7 @@ static int hisi_sas_v1_init(struct hisi_hba *hisi_hba) .eh_target_reset_handler = sas_eh_target_reset_handler, .target_destroy = sas_target_destroy, .ioctl = sas_ioctl, - .shost_attrs = host_attrs, + .shost_attrs = host_attrs_v1_hw, }; static const struct hisi_sas_hw hisi_sas_v1_hw = { diff --git a/drivers/scsi/hisi_sas/hisi_sas_v2_hw.c b/drivers/scsi/hisi_sas/hisi_sas_v2_hw.c index cc36b64..e78a97e 100644 --- a/drivers/scsi/hisi_sas/hisi_sas_v2_hw.c +++ b/drivers/scsi/hisi_sas/hisi_sas_v2_hw.c @@ -3554,6 +3554,11 @@ static void wait_cmds_complete_timeout_v2_hw(struct hisi_hba *hisi_hba, dev_dbg(dev, "wait commands complete %dms\n", time); } +struct device_attribute *host_attrs_v2_hw[] = { + &dev_attr_phy_event_threshold, + NULL +}; + static struct scsi_host_template sht_v2_hw = { .name = DRV_NAME, .module = THIS_MODULE, @@ -3572,7 +3577,7 @@ static void wait_cmds_complete_timeout_v2_hw(struct hisi_hba *hisi_hba, .eh_target_reset_handler = sas_eh_target_reset_handler, .target_destroy = sas_target_destroy, .ioctl = sas_ioctl, - .shost_attrs = host_attrs, + .shost_attrs = host_attrs_v2_hw, }; static const struct hisi_sas_hw hisi_sas_v2_hw = { diff --git a/drivers/scsi/hisi_sas/hisi_sas_v3_hw.c b/drivers/scsi/hisi_sas/hisi_sas_v3_hw.c index bd4ce38..68a6ec2 100644 --- a/drivers/scsi/hisi_sas/hisi_sas_v3_hw.c +++ b/drivers/scsi/hisi_sas/hisi_sas_v3_hw.c @@ -2091,6 +2091,11 @@ static void wait_cmds_complete_timeout_v3_hw(struct hisi_hba *hisi_hba, dev_dbg(dev, "wait commands complete %dms\n", time); } +struct device_attribute *host_attrs_v3_hw[] = { + &dev_attr_phy_event_threshold, + NULL +}; + static struct scsi_host_template sht_v3_hw = { .name = DRV_NAME, .module = THIS_MODULE, @@ -2109,7 +2114,7 @@ static void wait_cmds_complete_timeout_v3_hw(struct hisi_hba *hisi_hba, .eh_target_reset_handler = sas_eh_target_reset_handler, .target_destroy = sas_target_destroy, .ioctl = sas_ioctl, - .shost_attrs = host_attrs, + .shost_attrs = host_attrs_v3_hw, .tag_alloc_policy = BLK_TAG_ALLOC_RR, }; From patchwork Fri Nov 9 14:06:33 2018 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: John Garry X-Patchwork-Id: 10675991 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 CE30814D6 for ; Fri, 9 Nov 2018 14:05:27 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id BDB932EA87 for ; Fri, 9 Nov 2018 14:05:27 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id B243D2EA96; Fri, 9 Nov 2018 14:05:27 +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=-7.9 required=2.0 tests=BAYES_00,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 40B132EA94 for ; Fri, 9 Nov 2018 14:05:27 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1728266AbeKIXpw (ORCPT ); Fri, 9 Nov 2018 18:45:52 -0500 Received: from szxga06-in.huawei.com ([45.249.212.32]:47741 "EHLO huawei.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1728236AbeKIXpv (ORCPT ); Fri, 9 Nov 2018 18:45:51 -0500 Received: from DGGEMS405-HUB.china.huawei.com (unknown [172.30.72.60]) by Forcepoint Email with ESMTP id E1BA5692CA548; Fri, 9 Nov 2018 22:05:04 +0800 (CST) Received: from localhost.localdomain (10.67.212.75) by DGGEMS405-HUB.china.huawei.com (10.3.19.205) with Microsoft SMTP Server id 14.3.408.0; Fri, 9 Nov 2018 22:04:55 +0800 From: John Garry To: , CC: , , , Xiang Chen , John Garry Subject: [PATCH 2/5] scsi: hisi_sas: Add support for interrupt converge for v3 hw Date: Fri, 9 Nov 2018 22:06:33 +0800 Message-ID: <1541772396-161814-3-git-send-email-john.garry@huawei.com> X-Mailer: git-send-email 2.8.1 In-Reply-To: <1541772396-161814-1-git-send-email-john.garry@huawei.com> References: <1541772396-161814-1-git-send-email-john.garry@huawei.com> MIME-Version: 1.0 X-Originating-IP: [10.67.212.75] X-CFilter-Loop: Reflected 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: Xiang Chen If CQ_INT_CONVERGE_EN is enabled, the interrupts of all the 16 CQ queues will be reported by CQ0. So we need to change the process of CQ tasklet for this situation. Signed-off-by: Xiang Chen Signed-off-by: John Garry --- drivers/scsi/hisi_sas/hisi_sas_v3_hw.c | 29 ++++++++++++++++++++++++----- 1 file changed, 24 insertions(+), 5 deletions(-) diff --git a/drivers/scsi/hisi_sas/hisi_sas_v3_hw.c b/drivers/scsi/hisi_sas/hisi_sas_v3_hw.c index 68a6ec2..10d1651 100644 --- a/drivers/scsi/hisi_sas/hisi_sas_v3_hw.c +++ b/drivers/scsi/hisi_sas/hisi_sas_v3_hw.c @@ -42,6 +42,7 @@ #define MAX_CON_TIME_LIMIT_TIME 0xa4 #define BUS_INACTIVE_LIMIT_TIME 0xa8 #define REJECT_TO_OPEN_LIMIT_TIME 0xac +#define CQ_INT_CONVERGE_EN 0xb0 #define CFG_AGING_TIME 0xbc #define HGC_DFX_CFG2 0xc0 #define CFG_ABT_SET_QUERY_IPTT 0xd4 @@ -371,6 +372,9 @@ struct hisi_sas_err_record_v3 { ((fis.command == ATA_CMD_DEV_RESET) && \ ((fis.control & ATA_SRST) != 0))) +static bool hisi_sas_intr_conv; +MODULE_PARM_DESC(intr_conv, "interrupt converge enable (0-1)"); + static u32 hisi_sas_read32(struct hisi_hba *hisi_hba, u32 off) { void __iomem *regs = hisi_hba->regs + off; @@ -436,6 +440,8 @@ static void init_reg_v3_hw(struct hisi_hba *hisi_hba) hisi_sas_write32(hisi_hba, INT_COAL_EN, 0x1); hisi_sas_write32(hisi_hba, OQ_INT_COAL_TIME, 0x1); hisi_sas_write32(hisi_hba, OQ_INT_COAL_CNT, 0x1); + hisi_sas_write32(hisi_hba, CQ_INT_CONVERGE_EN, + hisi_sas_intr_conv); hisi_sas_write32(hisi_hba, OQ_INT_SRC, 0xffff); hisi_sas_write32(hisi_hba, ENT_INT_SRC1, 0xffffffff); hisi_sas_write32(hisi_hba, ENT_INT_SRC2, 0xffffffff); @@ -1880,10 +1886,12 @@ static int interrupt_init_v3_hw(struct hisi_hba *hisi_hba) for (i = 0; i < hisi_hba->queue_count; i++) { struct hisi_sas_cq *cq = &hisi_hba->cq[i]; struct tasklet_struct *t = &cq->tasklet; + int nr = hisi_sas_intr_conv ? 16 : 16 + i; + unsigned long irqflags = hisi_sas_intr_conv ? IRQF_SHARED : 0; - rc = devm_request_irq(dev, pci_irq_vector(pdev, i+16), - cq_interrupt_v3_hw, 0, - DRV_NAME " cq", cq); + rc = devm_request_irq(dev, pci_irq_vector(pdev, nr), + cq_interrupt_v3_hw, irqflags, + DRV_NAME " cq", cq); if (rc) { dev_err(dev, "could not request cq%d interrupt, rc=%d\n", @@ -1900,8 +1908,9 @@ static int interrupt_init_v3_hw(struct hisi_hba *hisi_hba) free_cq_irqs: for (k = 0; k < i; k++) { struct hisi_sas_cq *cq = &hisi_hba->cq[k]; + int nr = hisi_sas_intr_conv ? 16 : 16 + k; - free_irq(pci_irq_vector(pdev, k+16), cq); + free_irq(pci_irq_vector(pdev, nr), cq); } free_irq(pci_irq_vector(pdev, 11), hisi_hba); free_chnl_interrupt: @@ -2091,8 +2100,16 @@ static void wait_cmds_complete_timeout_v3_hw(struct hisi_hba *hisi_hba, dev_dbg(dev, "wait commands complete %dms\n", time); } +static ssize_t intr_conv_v3_hw_show(struct device *dev, + struct device_attribute *attr, char *buf) +{ + return scnprintf(buf, PAGE_SIZE, "%u\n", hisi_sas_intr_conv); +} +static DEVICE_ATTR_RO(intr_conv_v3_hw); + struct device_attribute *host_attrs_v3_hw[] = { &dev_attr_phy_event_threshold, + &dev_attr_intr_conv_v3_hw, NULL }; @@ -2308,8 +2325,9 @@ struct device_attribute *host_attrs_v3_hw[] = { free_irq(pci_irq_vector(pdev, 11), hisi_hba); for (i = 0; i < hisi_hba->queue_count; i++) { struct hisi_sas_cq *cq = &hisi_hba->cq[i]; + int nr = hisi_sas_intr_conv ? 16 : 16 + i; - free_irq(pci_irq_vector(pdev, i+16), cq); + free_irq(pci_irq_vector(pdev, nr), cq); } pci_free_irq_vectors(pdev); } @@ -2631,6 +2649,7 @@ static int hisi_sas_v3_resume(struct pci_dev *pdev) }; module_pci_driver(sas_v3_pci_driver); +module_param_named(intr_conv, hisi_sas_intr_conv, bool, 0444); MODULE_LICENSE("GPL"); MODULE_AUTHOR("John Garry "); From patchwork Fri Nov 9 14:06:34 2018 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: John Garry X-Patchwork-Id: 10675995 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 D627214D6 for ; Fri, 9 Nov 2018 14:05:41 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id C51262EA87 for ; Fri, 9 Nov 2018 14:05:41 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id B8E9B2EA94; Fri, 9 Nov 2018 14:05:41 +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=-7.9 required=2.0 tests=BAYES_00,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 4D1362EA87 for ; Fri, 9 Nov 2018 14:05:41 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1728359AbeKIXqU (ORCPT ); Fri, 9 Nov 2018 18:46:20 -0500 Received: from szxga06-in.huawei.com ([45.249.212.32]:47755 "EHLO huawei.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1728237AbeKIXqU (ORCPT ); Fri, 9 Nov 2018 18:46:20 -0500 Received: from DGGEMS405-HUB.china.huawei.com (unknown [172.30.72.60]) by Forcepoint Email with ESMTP id EF6015679302F; Fri, 9 Nov 2018 22:05:04 +0800 (CST) Received: from localhost.localdomain (10.67.212.75) by DGGEMS405-HUB.china.huawei.com (10.3.19.205) with Microsoft SMTP Server id 14.3.408.0; Fri, 9 Nov 2018 22:04:55 +0800 From: John Garry To: , CC: , , , Xiang Chen , John Garry Subject: [PATCH 3/5] scsi: hisi_sas: Add support for interrupt coalescing for v3 hw Date: Fri, 9 Nov 2018 22:06:34 +0800 Message-ID: <1541772396-161814-4-git-send-email-john.garry@huawei.com> X-Mailer: git-send-email 2.8.1 In-Reply-To: <1541772396-161814-1-git-send-email-john.garry@huawei.com> References: <1541772396-161814-1-git-send-email-john.garry@huawei.com> MIME-Version: 1.0 X-Originating-IP: [10.67.212.75] X-CFilter-Loop: Reflected 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: Xiang Chen If INT_COAL_EN is enabled, config time and count of interrupt coalescing. Then if CQ collects count of CQ entries in time, it will report the interrupt. Or if CQ doesn't collect enough CQ entries in time, it Will report the interrupt at timeout. As all the registers are not supported to be changed dynamically, so need to config those register between disable and enable PHYs. Signed-off-by: Xiang Chen Signed-off-by: John Garry --- drivers/scsi/hisi_sas/hisi_sas.h | 2 + drivers/scsi/hisi_sas/hisi_sas_v3_hw.c | 100 +++++++++++++++++++++++++++++++++ 2 files changed, 102 insertions(+) diff --git a/drivers/scsi/hisi_sas/hisi_sas.h b/drivers/scsi/hisi_sas/hisi_sas.h index 94a9e13..535c613 100644 --- a/drivers/scsi/hisi_sas/hisi_sas.h +++ b/drivers/scsi/hisi_sas/hisi_sas.h @@ -322,6 +322,8 @@ struct hisi_hba { unsigned long sata_dev_bitmap[BITS_TO_LONGS(HISI_SAS_MAX_DEVICES)]; struct work_struct rst_work; u32 phy_state; + u32 intr_coal_ticks; /* Time of interrupt coalesce in us */ + u32 intr_coal_count; /* Interrupt count to coalesce */ }; /* Generic HW DMA host memory structures */ diff --git a/drivers/scsi/hisi_sas/hisi_sas_v3_hw.c b/drivers/scsi/hisi_sas/hisi_sas_v3_hw.c index 10d1651..0c3fa43 100644 --- a/drivers/scsi/hisi_sas/hisi_sas_v3_hw.c +++ b/drivers/scsi/hisi_sas/hisi_sas_v3_hw.c @@ -2107,9 +2107,109 @@ static ssize_t intr_conv_v3_hw_show(struct device *dev, } static DEVICE_ATTR_RO(intr_conv_v3_hw); +static void config_intr_coal_v3_hw(struct hisi_hba *hisi_hba) +{ + /* config those registers between enable and disable PHYs */ + hisi_sas_stop_phys(hisi_hba); + + if (hisi_hba->intr_coal_ticks == 0 || + hisi_hba->intr_coal_count == 0) { + hisi_sas_write32(hisi_hba, INT_COAL_EN, 0x1); + hisi_sas_write32(hisi_hba, OQ_INT_COAL_TIME, 0x1); + hisi_sas_write32(hisi_hba, OQ_INT_COAL_CNT, 0x1); + } else { + hisi_sas_write32(hisi_hba, INT_COAL_EN, 0x3); + hisi_sas_write32(hisi_hba, OQ_INT_COAL_TIME, + hisi_hba->intr_coal_ticks); + hisi_sas_write32(hisi_hba, OQ_INT_COAL_CNT, + hisi_hba->intr_coal_count); + } + phys_init_v3_hw(hisi_hba); +} + +static ssize_t intr_coal_ticks_v3_hw_show(struct device *dev, + struct device_attribute *attr, + char *buf) +{ + struct Scsi_Host *shost = class_to_shost(dev); + struct hisi_hba *hisi_hba = shost_priv(shost); + + return scnprintf(buf, PAGE_SIZE, "%u\n", + hisi_hba->intr_coal_ticks); +} + +static ssize_t intr_coal_ticks_v3_hw_store(struct device *dev, + struct device_attribute *attr, + const char *buf, size_t count) +{ + struct Scsi_Host *shost = class_to_shost(dev); + struct hisi_hba *hisi_hba = shost_priv(shost); + u32 intr_coal_ticks; + int ret; + + ret = kstrtou32(buf, 10, &intr_coal_ticks); + if (ret) { + dev_err(dev, "Input data of interrupt coalesce unmatch\n"); + return -EINVAL; + } + + if (intr_coal_ticks >= BIT(24)) { + dev_err(dev, "intr_coal_ticks must be less than 2^24!\n"); + return -EINVAL; + } + + hisi_hba->intr_coal_ticks = intr_coal_ticks; + + config_intr_coal_v3_hw(hisi_hba); + + return count; +} +static DEVICE_ATTR_RW(intr_coal_ticks_v3_hw); + +static ssize_t intr_coal_count_v3_hw_show(struct device *dev, + struct device_attribute + *attr, char *buf) +{ + struct Scsi_Host *shost = class_to_shost(dev); + struct hisi_hba *hisi_hba = shost_priv(shost); + + return scnprintf(buf, PAGE_SIZE, "%u\n", + hisi_hba->intr_coal_count); +} + +static ssize_t intr_coal_count_v3_hw_store(struct device *dev, + struct device_attribute + *attr, const char *buf, size_t count) +{ + struct Scsi_Host *shost = class_to_shost(dev); + struct hisi_hba *hisi_hba = shost_priv(shost); + u32 intr_coal_count; + int ret; + + ret = kstrtou32(buf, 10, &intr_coal_count); + if (ret) { + dev_err(dev, "Input data of interrupt coalesce unmatch\n"); + return -EINVAL; + } + + if (intr_coal_count >= BIT(8)) { + dev_err(dev, "intr_coal_count must be less than 2^8!\n"); + return -EINVAL; + } + + hisi_hba->intr_coal_count = intr_coal_count; + + config_intr_coal_v3_hw(hisi_hba); + + return count; +} +static DEVICE_ATTR_RW(intr_coal_count_v3_hw); + struct device_attribute *host_attrs_v3_hw[] = { &dev_attr_phy_event_threshold, &dev_attr_intr_conv_v3_hw, + &dev_attr_intr_coal_ticks_v3_hw, + &dev_attr_intr_coal_count_v3_hw, NULL }; From patchwork Fri Nov 9 14:06:35 2018 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: John Garry X-Patchwork-Id: 10675977 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 8B4A513B0 for ; Fri, 9 Nov 2018 14:05:10 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 796C22EA91 for ; Fri, 9 Nov 2018 14:05:10 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 6CBF62EA95; Fri, 9 Nov 2018 14:05:10 +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=-7.9 required=2.0 tests=BAYES_00,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 EFA092EA91 for ; Fri, 9 Nov 2018 14:05:09 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1728299AbeKIXpx (ORCPT ); Fri, 9 Nov 2018 18:45:53 -0500 Received: from szxga06-in.huawei.com ([45.249.212.32]:47746 "EHLO huawei.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1728237AbeKIXpx (ORCPT ); Fri, 9 Nov 2018 18:45:53 -0500 Received: from DGGEMS405-HUB.china.huawei.com (unknown [172.30.72.60]) by Forcepoint Email with ESMTP id E644027BFF968; Fri, 9 Nov 2018 22:05:04 +0800 (CST) Received: from localhost.localdomain (10.67.212.75) by DGGEMS405-HUB.china.huawei.com (10.3.19.205) with Microsoft SMTP Server id 14.3.408.0; Fri, 9 Nov 2018 22:04:56 +0800 From: John Garry To: , CC: , , , Xiang Chen , John Garry Subject: [PATCH 4/5] scsi: hisi_sas: Relocate some codes to avoid an unused check Date: Fri, 9 Nov 2018 22:06:35 +0800 Message-ID: <1541772396-161814-5-git-send-email-john.garry@huawei.com> X-Mailer: git-send-email 2.8.1 In-Reply-To: <1541772396-161814-1-git-send-email-john.garry@huawei.com> References: <1541772396-161814-1-git-send-email-john.garry@huawei.com> MIME-Version: 1.0 X-Originating-IP: [10.67.212.75] X-CFilter-Loop: Reflected 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: Xiang Chen In function hisi_sas_task_prep(), we check asd_sas_port, but in function hisi_sas_task_exec(), we already refer to asd_sas_port by using function dev_to_hisi_hba() implicitly. So to avoid this possible invalid dereference, relocate the check to function hisi_sas_task_prep(). Signed-off-by: Xiang Chen Signed-off-by: John Garry --- drivers/scsi/hisi_sas/hisi_sas_main.c | 44 ++++++++++++++++++----------------- 1 file changed, 23 insertions(+), 21 deletions(-) diff --git a/drivers/scsi/hisi_sas/hisi_sas_main.c b/drivers/scsi/hisi_sas/hisi_sas_main.c index 8633ff9..65dc749 100644 --- a/drivers/scsi/hisi_sas/hisi_sas_main.c +++ b/drivers/scsi/hisi_sas/hisi_sas_main.c @@ -302,36 +302,19 @@ static int hisi_sas_task_prep(struct sas_task *task, int *pass) { struct domain_device *device = task->dev; - struct hisi_hba *hisi_hba; + struct hisi_hba *hisi_hba = dev_to_hisi_hba(device); struct hisi_sas_device *sas_dev = device->lldd_dev; struct hisi_sas_port *port; struct hisi_sas_slot *slot; struct hisi_sas_cmd_hdr *cmd_hdr_base; struct asd_sas_port *sas_port = device->port; - struct device *dev; + struct device *dev = hisi_hba->dev; int dlvry_queue_slot, dlvry_queue, rc, slot_idx; int n_elem = 0, n_elem_req = 0, n_elem_resp = 0; struct hisi_sas_dq *dq; unsigned long flags; int wr_q_index; - if (!sas_port) { - struct task_status_struct *ts = &task->task_status; - - ts->resp = SAS_TASK_UNDELIVERED; - ts->stat = SAS_PHY_DOWN; - /* - * libsas will use dev->port, should - * not call task_done for sata - */ - if (device->dev_type != SAS_SATA_DEV) - task->task_done(task); - return -ECOMM; - } - - hisi_hba = dev_to_hisi_hba(device); - dev = hisi_hba->dev; - if (DEV_IS_GONE(sas_dev)) { if (sas_dev) dev_info(dev, "task prep: device %d not ready\n", @@ -506,10 +489,29 @@ static int hisi_sas_task_exec(struct sas_task *task, gfp_t gfp_flags, u32 rc; u32 pass = 0; unsigned long flags; - struct hisi_hba *hisi_hba = dev_to_hisi_hba(task->dev); - struct device *dev = hisi_hba->dev; + struct hisi_hba *hisi_hba; + struct device *dev; + struct domain_device *device = task->dev; + struct asd_sas_port *sas_port = device->port; struct hisi_sas_dq *dq = NULL; + if (!sas_port) { + struct task_status_struct *ts = &task->task_status; + + ts->resp = SAS_TASK_UNDELIVERED; + ts->stat = SAS_PHY_DOWN; + /* + * libsas will use dev->port, should + * not call task_done for sata + */ + if (device->dev_type != SAS_SATA_DEV) + task->task_done(task); + return -ECOMM; + } + + hisi_hba = dev_to_hisi_hba(device); + dev = hisi_hba->dev; + if (unlikely(test_bit(HISI_SAS_REJECT_CMD_BIT, &hisi_hba->flags))) { if (in_softirq()) return -EINVAL; From patchwork Fri Nov 9 14:06:36 2018 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: John Garry X-Patchwork-Id: 10675993 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 3853B13B0 for ; Fri, 9 Nov 2018 14:05:32 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 271982EA87 for ; Fri, 9 Nov 2018 14:05:32 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 1BA3A2EA94; Fri, 9 Nov 2018 14:05:32 +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=-7.9 required=2.0 tests=BAYES_00,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 C4CE52EA87 for ; Fri, 9 Nov 2018 14:05:31 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1728245AbeKIXpw (ORCPT ); Fri, 9 Nov 2018 18:45:52 -0500 Received: from szxga06-in.huawei.com ([45.249.212.32]:47752 "EHLO huawei.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1727988AbeKIXpv (ORCPT ); Fri, 9 Nov 2018 18:45:51 -0500 Received: from DGGEMS405-HUB.china.huawei.com (unknown [172.30.72.60]) by Forcepoint Email with ESMTP id EAEA3DB3921BB; Fri, 9 Nov 2018 22:05:04 +0800 (CST) Received: from localhost.localdomain (10.67.212.75) by DGGEMS405-HUB.china.huawei.com (10.3.19.205) with Microsoft SMTP Server id 14.3.408.0; Fri, 9 Nov 2018 22:04:56 +0800 From: John Garry To: , CC: , , , Xiang Chen , John Garry Subject: [PATCH 5/5] scsi: hisi_sas: change the time of SAS SSP connection Date: Fri, 9 Nov 2018 22:06:36 +0800 Message-ID: <1541772396-161814-6-git-send-email-john.garry@huawei.com> X-Mailer: git-send-email 2.8.1 In-Reply-To: <1541772396-161814-1-git-send-email-john.garry@huawei.com> References: <1541772396-161814-1-git-send-email-john.garry@huawei.com> MIME-Version: 1.0 X-Originating-IP: [10.67.212.75] X-CFilter-Loop: Reflected 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: Xiang Chen Currently the time of SAS SSP connection is 1ms, which means the link connection will fail if no IO response after this period. For some disks handling large IO (such as 512k), 1ms is not enough, so change it to 5ms. Signed-off-by: Xiang Chen Signed-off-by: John Garry --- drivers/scsi/hisi_sas/hisi_sas_v3_hw.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/scsi/hisi_sas/hisi_sas_v3_hw.c b/drivers/scsi/hisi_sas/hisi_sas_v3_hw.c index 0c3fa43..a677296 100644 --- a/drivers/scsi/hisi_sas/hisi_sas_v3_hw.c +++ b/drivers/scsi/hisi_sas/hisi_sas_v3_hw.c @@ -500,7 +500,7 @@ static void init_reg_v3_hw(struct hisi_hba *hisi_hba) hisi_sas_phy_write32(hisi_hba, i, PHYCTRL_OOB_RESTART_MSK, 0x1); hisi_sas_phy_write32(hisi_hba, i, STP_LINK_TIMER, 0x7f7a120); hisi_sas_phy_write32(hisi_hba, i, CON_CFG_DRIVER, 0x2a0a01); - + hisi_sas_phy_write32(hisi_hba, i, SAS_SSP_CON_TIMER_CFG, 0x32); /* used for 12G negotiate */ hisi_sas_phy_write32(hisi_hba, i, COARSETUNE_TIME, 0x1e); hisi_sas_phy_write32(hisi_hba, i, AIP_LIMIT, 0x2ffff);