From patchwork Tue Dec 15 09:39:31 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Stanley Chu X-Patchwork-Id: 344765 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-16.8 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER,INCLUDES_PATCH, MAILING_LIST_MULTI, SPF_HELO_NONE, SPF_PASS, UNPARSEABLE_RELAY, USER_AGENT_GIT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id D8BCCC2BB48 for ; Tue, 15 Dec 2020 09:40:57 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 9A934222B6 for ; Tue, 15 Dec 2020 09:40:57 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1728255AbgLOJki (ORCPT ); Tue, 15 Dec 2020 04:40:38 -0500 Received: from mailgw01.mediatek.com ([210.61.82.183]:59060 "EHLO mailgw01.mediatek.com" rhost-flags-OK-FAIL-OK-FAIL) by vger.kernel.org with ESMTP id S1728200AbgLOJkc (ORCPT ); Tue, 15 Dec 2020 04:40:32 -0500 X-UUID: f7ab351191f14c849d8e2407f373e878-20201215 X-UUID: f7ab351191f14c849d8e2407f373e878-20201215 Received: from mtkcas10.mediatek.inc [(172.21.101.39)] by mailgw01.mediatek.com (envelope-from ) (Cellopoint E-mail Firewall v4.1.14 Build 0819 with TLSv1.2 ECDHE-RSA-AES256-SHA384 256/256) with ESMTP id 60192814; Tue, 15 Dec 2020 17:39:43 +0800 Received: from MTKCAS06.mediatek.inc (172.21.101.30) by mtkmbs02n2.mediatek.inc (172.21.101.101) with Microsoft SMTP Server (TLS) id 15.0.1497.2; Tue, 15 Dec 2020 17:39:34 +0800 Received: from mtksdccf07.mediatek.inc (172.21.84.99) by MTKCAS06.mediatek.inc (172.21.101.73) with Microsoft SMTP Server id 15.0.1497.2 via Frontend Transport; Tue, 15 Dec 2020 17:39:35 +0800 From: Stanley Chu To: , , , , CC: , , , , , , , , , , , , , , , , Stanley Chu Subject: [PATCH v1 1/4] scsi: ufs: Cleanup ufshcd_suspend_clkscaling function Date: Tue, 15 Dec 2020 17:39:31 +0800 Message-ID: <20201215093934.21223-2-stanley.chu@mediatek.com> X-Mailer: git-send-email 2.18.0 In-Reply-To: <20201215093934.21223-1-stanley.chu@mediatek.com> References: <20201215093934.21223-1-stanley.chu@mediatek.com> MIME-Version: 1.0 X-TM-SNTS-SMTP: A697137FF3D77AF70E1B83643F3DF2E5C7F94A04A846938C5771F16B97E9A4B32000:8 X-MTK: N Precedence: bulk List-ID: X-Mailing-List: linux-scsi@vger.kernel.org Cancelling suspend_work and resume_work is only required while suspending clk-scaling. Thus moving these two invokes into ufshcd_suspend_clkscaling() function. Signed-off-by: Stanley Chu --- drivers/scsi/ufs/ufshcd.c | 17 ++++++----------- 1 file changed, 6 insertions(+), 11 deletions(-) diff --git a/drivers/scsi/ufs/ufshcd.c b/drivers/scsi/ufs/ufshcd.c index 052479a56a6f..a91b73a1fc48 100644 --- a/drivers/scsi/ufs/ufshcd.c +++ b/drivers/scsi/ufs/ufshcd.c @@ -1451,6 +1451,9 @@ static void ufshcd_suspend_clkscaling(struct ufs_hba *hba) if (!ufshcd_is_clkscaling_supported(hba)) return; + cancel_work_sync(&hba->clk_scaling.suspend_work); + cancel_work_sync(&hba->clk_scaling.resume_work); + spin_lock_irqsave(hba->host->host_lock, flags); if (!hba->clk_scaling.is_suspended) { suspend = true; @@ -1514,9 +1517,6 @@ static ssize_t ufshcd_clkscale_enable_store(struct device *dev, pm_runtime_get_sync(hba->dev); ufshcd_hold(hba, false); - cancel_work_sync(&hba->clk_scaling.suspend_work); - cancel_work_sync(&hba->clk_scaling.resume_work); - if (value) { ufshcd_resume_clkscaling(hba); } else { @@ -5663,11 +5663,8 @@ static void ufshcd_err_handling_prepare(struct ufs_hba *hba) ufshcd_vops_resume(hba, UFS_RUNTIME_PM); } else { ufshcd_hold(hba, false); - if (hba->clk_scaling.is_enabled) { - cancel_work_sync(&hba->clk_scaling.suspend_work); - cancel_work_sync(&hba->clk_scaling.resume_work); + if (hba->clk_scaling.is_enabled) ufshcd_suspend_clkscaling(hba); - } } down_write(&hba->clk_scaling_lock); hba->clk_scaling.is_allowed = false; @@ -8512,11 +8509,9 @@ static int ufshcd_suspend(struct ufs_hba *hba, enum ufs_pm_op pm_op) ufshcd_hold(hba, false); hba->clk_gating.is_suspended = true; - if (hba->clk_scaling.is_enabled) { - cancel_work_sync(&hba->clk_scaling.suspend_work); - cancel_work_sync(&hba->clk_scaling.resume_work); + if (hba->clk_scaling.is_enabled) ufshcd_suspend_clkscaling(hba); - } + down_write(&hba->clk_scaling_lock); hba->clk_scaling.is_allowed = false; up_write(&hba->clk_scaling_lock); From patchwork Tue Dec 15 09:39:32 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Stanley Chu X-Patchwork-Id: 344253 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-16.7 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER,INCLUDES_PATCH, MAILING_LIST_MULTI, SPF_HELO_NONE, SPF_PASS, UNPARSEABLE_RELAY, URIBL_BLOCKED, USER_AGENT_GIT autolearn=unavailable autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id DF793C2BB9A for ; Tue, 15 Dec 2020 09:42:19 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 9394E2226A for ; Tue, 15 Dec 2020 09:42:19 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1728208AbgLOJkh (ORCPT ); Tue, 15 Dec 2020 04:40:37 -0500 Received: from mailgw02.mediatek.com ([210.61.82.184]:33782 "EHLO mailgw02.mediatek.com" rhost-flags-OK-FAIL-OK-FAIL) by vger.kernel.org with ESMTP id S1728160AbgLOJkY (ORCPT ); Tue, 15 Dec 2020 04:40:24 -0500 X-UUID: fbc6ddef67e84c37a5a154b284793fae-20201215 X-UUID: fbc6ddef67e84c37a5a154b284793fae-20201215 Received: from mtkcas07.mediatek.inc [(172.21.101.84)] by mailgw02.mediatek.com (envelope-from ) (Cellopoint E-mail Firewall v4.1.14 Build 0819 with TLSv1.2 ECDHE-RSA-AES256-SHA384 256/256) with ESMTP id 473899769; Tue, 15 Dec 2020 17:39:36 +0800 Received: from MTKCAS06.mediatek.inc (172.21.101.30) by mtkmbs02n1.mediatek.inc (172.21.101.77) with Microsoft SMTP Server (TLS) id 15.0.1497.2; Tue, 15 Dec 2020 17:39:36 +0800 Received: from mtksdccf07.mediatek.inc (172.21.84.99) by MTKCAS06.mediatek.inc (172.21.101.73) with Microsoft SMTP Server id 15.0.1497.2 via Frontend Transport; Tue, 15 Dec 2020 17:39:36 +0800 From: Stanley Chu To: , , , , CC: , , , , , , , , , , , , , , , , Stanley Chu Subject: [PATCH v1 2/4] scsi: ufs: Cleanup ufshcd_add_lus function Date: Tue, 15 Dec 2020 17:39:32 +0800 Message-ID: <20201215093934.21223-3-stanley.chu@mediatek.com> X-Mailer: git-send-email 2.18.0 In-Reply-To: <20201215093934.21223-1-stanley.chu@mediatek.com> References: <20201215093934.21223-1-stanley.chu@mediatek.com> MIME-Version: 1.0 X-MTK: N Precedence: bulk List-ID: X-Mailing-List: linux-scsi@vger.kernel.org hba->devfreq is zero-initialized thus it is not required to check its existence in ufshcd_add_lus() function which is invoked during initialization only. Signed-off-by: Stanley Chu --- drivers/scsi/ufs/ufshcd.c | 14 ++++++-------- 1 file changed, 6 insertions(+), 8 deletions(-) diff --git a/drivers/scsi/ufs/ufshcd.c b/drivers/scsi/ufs/ufshcd.c index a91b73a1fc48..9cc16598136d 100644 --- a/drivers/scsi/ufs/ufshcd.c +++ b/drivers/scsi/ufs/ufshcd.c @@ -7636,15 +7636,13 @@ static int ufshcd_add_lus(struct ufs_hba *hba) &hba->pwr_info, sizeof(struct ufs_pa_layer_attr)); hba->clk_scaling.saved_pwr_info.is_valid = true; - if (!hba->devfreq) { - hba->clk_scaling.is_allowed = true; - ret = ufshcd_devfreq_init(hba); - if (ret) - goto out; + hba->clk_scaling.is_allowed = true; + ret = ufshcd_devfreq_init(hba); + if (ret) + goto out; - hba->clk_scaling.is_enabled = true; - ufshcd_clkscaling_init_sysfs(hba); - } + hba->clk_scaling.is_enabled = true; + ufshcd_clkscaling_init_sysfs(hba); } ufs_bsg_probe(hba); From patchwork Tue Dec 15 09:39:33 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Stanley Chu X-Patchwork-Id: 344254 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-16.8 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER,INCLUDES_PATCH, MAILING_LIST_MULTI, SPF_HELO_NONE, SPF_PASS, UNPARSEABLE_RELAY, USER_AGENT_GIT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 1746CC2BBCA for ; Tue, 15 Dec 2020 09:40:58 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id D568C22509 for ; Tue, 15 Dec 2020 09:40:57 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1728319AbgLOJky (ORCPT ); Tue, 15 Dec 2020 04:40:54 -0500 Received: from mailgw01.mediatek.com ([210.61.82.183]:59050 "EHLO mailgw01.mediatek.com" rhost-flags-OK-FAIL-OK-FAIL) by vger.kernel.org with ESMTP id S1728300AbgLOJkr (ORCPT ); Tue, 15 Dec 2020 04:40:47 -0500 X-UUID: 15492db03985405d860f43f9e3a91c6f-20201215 X-UUID: 15492db03985405d860f43f9e3a91c6f-20201215 Received: from mtkcas10.mediatek.inc [(172.21.101.39)] by mailgw01.mediatek.com (envelope-from ) (Cellopoint E-mail Firewall v4.1.14 Build 0819 with TLSv1.2 ECDHE-RSA-AES256-SHA384 256/256) with ESMTP id 1953850868; Tue, 15 Dec 2020 17:39:43 +0800 Received: from MTKCAS06.mediatek.inc (172.21.101.30) by mtkmbs02n2.mediatek.inc (172.21.101.101) with Microsoft SMTP Server (TLS) id 15.0.1497.2; Tue, 15 Dec 2020 17:39:35 +0800 Received: from mtksdccf07.mediatek.inc (172.21.84.99) by MTKCAS06.mediatek.inc (172.21.101.73) with Microsoft SMTP Server id 15.0.1497.2 via Frontend Transport; Tue, 15 Dec 2020 17:39:36 +0800 From: Stanley Chu To: , , , , CC: , , , , , , , , , , , , , , , , Stanley Chu Subject: [PATCH v1 3/4] scsi: ufs: Cleanup and refactor clk-scaling feature Date: Tue, 15 Dec 2020 17:39:33 +0800 Message-ID: <20201215093934.21223-4-stanley.chu@mediatek.com> X-Mailer: git-send-email 2.18.0 In-Reply-To: <20201215093934.21223-1-stanley.chu@mediatek.com> References: <20201215093934.21223-1-stanley.chu@mediatek.com> MIME-Version: 1.0 X-TM-SNTS-SMTP: 3CAFF49127AEEC67EFC7D1E363E3F12449FA4DAFF1E67EE4408B68ABB45E843A2000:8 X-MTK: N Precedence: bulk List-ID: X-Mailing-List: linux-scsi@vger.kernel.org Manipulate clock scaling related stuff only if the host capability supports clock scaling feature to avoid redundant code execution. Signed-off-by: Stanley Chu --- drivers/scsi/ufs/ufshcd.c | 54 ++++++++++++++++++++++----------------- 1 file changed, 30 insertions(+), 24 deletions(-) diff --git a/drivers/scsi/ufs/ufshcd.c b/drivers/scsi/ufs/ufshcd.c index 9cc16598136d..15e5877411b3 100644 --- a/drivers/scsi/ufs/ufshcd.c +++ b/drivers/scsi/ufs/ufshcd.c @@ -1448,9 +1448,6 @@ static void ufshcd_suspend_clkscaling(struct ufs_hba *hba) unsigned long flags; bool suspend = false; - if (!ufshcd_is_clkscaling_supported(hba)) - return; - cancel_work_sync(&hba->clk_scaling.suspend_work); cancel_work_sync(&hba->clk_scaling.resume_work); @@ -1470,9 +1467,6 @@ static void ufshcd_resume_clkscaling(struct ufs_hba *hba) unsigned long flags; bool resume = false; - if (!ufshcd_is_clkscaling_supported(hba)) - return; - spin_lock_irqsave(hba->host->host_lock, flags); if (hba->clk_scaling.is_suspended) { resume = true; @@ -5663,7 +5657,8 @@ static void ufshcd_err_handling_prepare(struct ufs_hba *hba) ufshcd_vops_resume(hba, UFS_RUNTIME_PM); } else { ufshcd_hold(hba, false); - if (hba->clk_scaling.is_enabled) + if (ufshcd_is_clkscaling_supported(hba) && + hba->clk_scaling.is_enabled) ufshcd_suspend_clkscaling(hba); } down_write(&hba->clk_scaling_lock); @@ -5678,7 +5673,8 @@ static void ufshcd_err_handling_unprepare(struct ufs_hba *hba) down_write(&hba->clk_scaling_lock); hba->clk_scaling.is_allowed = true; up_write(&hba->clk_scaling_lock); - if (hba->clk_scaling.is_enabled) + if (ufshcd_is_clkscaling_supported(hba) && + hba->clk_scaling.is_enabled) ufshcd_resume_clkscaling(hba); pm_runtime_put(hba->dev); } @@ -8466,6 +8462,25 @@ static void ufshcd_hba_vreg_set_hpm(struct ufs_hba *hba) ufshcd_setup_hba_vreg(hba, true); } +static void ufshcd_clk_scaling_pm(struct ufs_hba *hba, bool suspend) +{ + if (suspend) { + if (hba->clk_scaling.is_enabled) + ufshcd_suspend_clkscaling(hba); + + down_write(&hba->clk_scaling_lock); + hba->clk_scaling.is_allowed = false; + up_write(&hba->clk_scaling_lock); + } else { + down_write(&hba->clk_scaling_lock); + hba->clk_scaling.is_allowed = true; + up_write(&hba->clk_scaling_lock); + + if (hba->clk_scaling.is_enabled) + ufshcd_resume_clkscaling(hba); + } +} + /** * ufshcd_suspend - helper function for suspend operations * @hba: per adapter instance @@ -8507,12 +8522,8 @@ static int ufshcd_suspend(struct ufs_hba *hba, enum ufs_pm_op pm_op) ufshcd_hold(hba, false); hba->clk_gating.is_suspended = true; - if (hba->clk_scaling.is_enabled) - ufshcd_suspend_clkscaling(hba); - - down_write(&hba->clk_scaling_lock); - hba->clk_scaling.is_allowed = false; - up_write(&hba->clk_scaling_lock); + if (ufshcd_is_clkscaling_supported(hba)) + ufshcd_clk_scaling_pm(hba, true); if (req_dev_pwr_mode == UFS_ACTIVE_PWR_MODE && req_link_state == UIC_LINK_ACTIVE_STATE) { @@ -8618,11 +8629,9 @@ static int ufshcd_suspend(struct ufs_hba *hba, enum ufs_pm_op pm_op) if (!ufshcd_set_dev_pwr_mode(hba, UFS_ACTIVE_PWR_MODE)) ufshcd_disable_auto_bkops(hba); enable_gating: - down_write(&hba->clk_scaling_lock); - hba->clk_scaling.is_allowed = true; - up_write(&hba->clk_scaling_lock); - if (hba->clk_scaling.is_enabled) - ufshcd_resume_clkscaling(hba); + if (ufshcd_is_clkscaling_supported(hba)) + ufshcd_clk_scaling_pm(hba, false); + hba->clk_gating.is_suspended = false; hba->dev_info.b_rpm_dev_flush_capable = false; ufshcd_release(hba); @@ -8719,11 +8728,8 @@ static int ufshcd_resume(struct ufs_hba *hba, enum ufs_pm_op pm_op) hba->clk_gating.is_suspended = false; - down_write(&hba->clk_scaling_lock); - hba->clk_scaling.is_allowed = true; - up_write(&hba->clk_scaling_lock); - if (hba->clk_scaling.is_enabled) - ufshcd_resume_clkscaling(hba); + if (ufshcd_is_clkscaling_supported(hba)) + ufshcd_clk_scaling_pm(hba, false); /* Enable Auto-Hibernate if configured */ ufshcd_auto_hibern8_enable(hba); From patchwork Tue Dec 15 09:39:34 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Stanley Chu X-Patchwork-Id: 344764 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-16.7 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER,INCLUDES_PATCH, MAILING_LIST_MULTI, SPF_HELO_NONE, SPF_PASS, UNPARSEABLE_RELAY, URIBL_BLOCKED, USER_AGENT_GIT autolearn=unavailable autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 0E38CC4361B for ; Tue, 15 Dec 2020 09:42:19 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id C69612226A for ; Tue, 15 Dec 2020 09:42:18 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1728226AbgLOJki (ORCPT ); Tue, 15 Dec 2020 04:40:38 -0500 Received: from mailgw01.mediatek.com ([210.61.82.183]:59050 "EHLO mailgw01.mediatek.com" rhost-flags-OK-FAIL-OK-FAIL) by vger.kernel.org with ESMTP id S1727775AbgLOJkb (ORCPT ); Tue, 15 Dec 2020 04:40:31 -0500 X-UUID: b036cac9ae994ddabf219e5524b0ba96-20201215 X-UUID: b036cac9ae994ddabf219e5524b0ba96-20201215 Received: from mtkcas11.mediatek.inc [(172.21.101.40)] by mailgw01.mediatek.com (envelope-from ) (Cellopoint E-mail Firewall v4.1.14 Build 0819 with TLSv1.2 ECDHE-RSA-AES256-SHA384 256/256) with ESMTP id 1662855156; Tue, 15 Dec 2020 17:39:43 +0800 Received: from MTKCAS06.mediatek.inc (172.21.101.30) by mtkmbs08n2.mediatek.inc (172.21.101.56) with Microsoft SMTP Server (TLS) id 15.0.1497.2; Tue, 15 Dec 2020 17:39:35 +0800 Received: from mtksdccf07.mediatek.inc (172.21.84.99) by MTKCAS06.mediatek.inc (172.21.101.73) with Microsoft SMTP Server id 15.0.1497.2 via Frontend Transport; Tue, 15 Dec 2020 17:39:36 +0800 From: Stanley Chu To: , , , , CC: , , , , , , , , , , , , , , , , Stanley Chu Subject: [PATCH v1 4/4] scsi: ufs: Fix build warning by incorrect function description Date: Tue, 15 Dec 2020 17:39:34 +0800 Message-ID: <20201215093934.21223-5-stanley.chu@mediatek.com> X-Mailer: git-send-email 2.18.0 In-Reply-To: <20201215093934.21223-1-stanley.chu@mediatek.com> References: <20201215093934.21223-1-stanley.chu@mediatek.com> MIME-Version: 1.0 X-TM-SNTS-SMTP: BEEA38C008BEBCA6B551BFFEBDBFC0668C4DB8595B9FDBFD0C06C02EE25BEEBB2000:8 X-MTK: N Precedence: bulk List-ID: X-Mailing-List: linux-scsi@vger.kernel.org Fix build warnings as below due to incorrect function description of ufshcd_try_to_abort_task(). ufshcd.c:6651: warning: Function parameter or member 'hba' not described in 'ufshcd_try_to_abort_task' ufshcd.c:6651: warning: Function parameter or member 'tag' not described in 'ufshcd_try_to_abort_task' ufshcd.c:6651: warning: Excess function parameter 'cmd' description in 'ufshcd_try_to_abort_task' Signed-off-by: Stanley Chu --- drivers/scsi/ufs/ufshcd.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/drivers/scsi/ufs/ufshcd.c b/drivers/scsi/ufs/ufshcd.c index 15e5877411b3..dd1ca22264da 100644 --- a/drivers/scsi/ufs/ufshcd.c +++ b/drivers/scsi/ufs/ufshcd.c @@ -6637,7 +6637,8 @@ static void ufshcd_set_req_abort_skip(struct ufs_hba *hba, unsigned long bitmap) /** * ufshcd_try_to_abort_task - abort a specific task - * @cmd: SCSI command pointer + * @hba: per adapter instance + * @tag: position of the bit to be aborted * * Abort the pending command in device by sending UFS_ABORT_TASK task management * command, and in host controller by clearing the door-bell register. There can