From patchwork Fri Sep 21 09:44:18 2018 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Avri Altman X-Patchwork-Id: 10609453 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 3F8D76CB for ; Fri, 21 Sep 2018 09:44:58 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 2EA9C2DB8E for ; Fri, 21 Sep 2018 09:44:58 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 22C672DB92; Fri, 21 Sep 2018 09:44:58 +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=-7.8 required=2.0 tests=BAYES_00,DKIM_SIGNED, MAILING_LIST_MULTI,RCVD_IN_DNSWL_HI,T_DKIM_INVALID 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 5FE3A2DB8E for ; Fri, 21 Sep 2018 09:44:57 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S2389560AbeIUPc6 (ORCPT ); Fri, 21 Sep 2018 11:32:58 -0400 Received: from esa1.hgst.iphmx.com ([68.232.141.245]:49202 "EHLO esa1.hgst.iphmx.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1725898AbeIUPc6 (ORCPT ); Fri, 21 Sep 2018 11:32:58 -0400 DKIM-Signature: v=1; a=rsa-sha256; c=simple/simple; d=wdc.com; i=@wdc.com; q=dns/txt; s=dkim.wdc.com; t=1537523096; x=1569059096; h=from:to:cc:subject:date:message-id:in-reply-to: references; bh=Pbgj08VR8H1Yo9P5omsF+mmfvi/vxkv4To3AmUqNIm0=; b=eyXgUuH8GgJzV2z6nJ75n6g81/DQVnYB7cVd6tHvJmuWcjnLSRUnYV5X /ndgYdISJv7z7OtdyJuH5FjTsH7T/HRpvHYoiXfhaDFxGDX5WZbw8Tlc6 ygg70pgTIYOntamC5nk4TA14Jws8wBxrmm9++f+xk/kIhl3Q8ovxl02e2 QrH9QWw1K9Ghus7AE3+teepZ31QMmX4XR+YLW7CrrPDADHA2W9BVvwt/t 071Loo60pMLLEjXL2kkvSt/7ZUAGo87PSsUuRnbqPCY9Pm9riyXR58yMU RRcPfiHSDpRxPNKn5u8xAdSheIvrrNTYVcp9fP44s4CPI5gs2Pl4HvoVv g==; X-IronPort-AV: E=Sophos;i="5.54,284,1534780800"; d="scan'208";a="194511217" Received: from uls-op-cesaip02.wdc.com (HELO uls-op-cesaep02.wdc.com) ([199.255.45.15]) by ob1.hgst.iphmx.com with ESMTP; 21 Sep 2018 17:44:55 +0800 Received: from uls-op-cesaip01.wdc.com ([10.248.3.36]) by uls-op-cesaep02.wdc.com with ESMTP; 21 Sep 2018 02:31:01 -0700 Received: from kfae422988.sdcorp.global.sandisk.com ([10.0.231.37]) by uls-op-cesaip01.wdc.com with ESMTP; 21 Sep 2018 02:44:54 -0700 From: Avri Altman To: Christoph Hellwig , Johannes Thumshirn , Hannes Reinecke , Bart Van Assche , "James E.J. Bottomley" , "Martin K. Petersen" , linux-scsi@vger.kernel.org Cc: Stanislav Nijnikov , Avi Shchislowski , Alex Lemberg , Subhash Jadavani , Vinayak Holikatti Subject: [PATCH v6 1/7] scsi: ufs: cleanup struct utp_task_req_desc Date: Fri, 21 Sep 2018 12:44:18 +0300 Message-Id: <1537523064-13478-2-git-send-email-avri.altman@wdc.com> X-Mailer: git-send-email 1.9.1 In-Reply-To: <1537523064-13478-1-git-send-email-avri.altman@wdc.com> References: <1537523064-13478-1-git-send-email-avri.altman@wdc.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 From: Christoph Hellwig Remove the pointless task_req_upiu and task_rsp_upiu indirections, which are __le32 arrays always cast to given structures and just add the members directly. Also clean up variables names in use in the callers a bit to make the code more readable. Signed-off-by: Christoph Hellwig --- drivers/scsi/ufs/ufs.h | 30 --------------------- drivers/scsi/ufs/ufshcd.c | 68 ++++++++++++++--------------------------------- drivers/scsi/ufs/ufshci.h | 25 +++++++++-------- 3 files changed, 34 insertions(+), 89 deletions(-) diff --git a/drivers/scsi/ufs/ufs.h b/drivers/scsi/ufs/ufs.h index 14e5bf7..16230df 100644 --- a/drivers/scsi/ufs/ufs.h +++ b/drivers/scsi/ufs/ufs.h @@ -520,36 +520,6 @@ struct utp_upiu_rsp { }; /** - * struct utp_upiu_task_req - Task request UPIU structure - * @header - UPIU header structure DW0 to DW-2 - * @input_param1: Input parameter 1 DW-3 - * @input_param2: Input parameter 2 DW-4 - * @input_param3: Input parameter 3 DW-5 - * @reserved: Reserved double words DW-6 to DW-7 - */ -struct utp_upiu_task_req { - struct utp_upiu_header header; - __be32 input_param1; - __be32 input_param2; - __be32 input_param3; - __be32 reserved[2]; -}; - -/** - * struct utp_upiu_task_rsp - Task Management Response UPIU structure - * @header: UPIU header structure DW0-DW-2 - * @output_param1: Ouput parameter 1 DW3 - * @output_param2: Output parameter 2 DW4 - * @reserved: Reserved double words DW-5 to DW-7 - */ -struct utp_upiu_task_rsp { - struct utp_upiu_header header; - __be32 output_param1; - __be32 output_param2; - __be32 reserved[3]; -}; - -/** * struct ufs_query_req - parameters for building a query request * @query_func: UPIU header query function * @upiu_req: the query request data diff --git a/drivers/scsi/ufs/ufshcd.c b/drivers/scsi/ufs/ufshcd.c index 5338862..82ca081 100644 --- a/drivers/scsi/ufs/ufshcd.c +++ b/drivers/scsi/ufs/ufshcd.c @@ -326,14 +326,11 @@ static void ufshcd_add_query_upiu_trace(struct ufs_hba *hba, unsigned int tag, static void ufshcd_add_tm_upiu_trace(struct ufs_hba *hba, unsigned int tag, const char *str) { - struct utp_task_req_desc *descp; - struct utp_upiu_task_req *task_req; int off = (int)tag - hba->nutrs; + struct utp_task_req_desc *descp = &hba->utmrdl_base_addr[off]; - descp = &hba->utmrdl_base_addr[off]; - task_req = (struct utp_upiu_task_req *)descp->task_req_upiu; - trace_ufshcd_upiu(dev_name(hba->dev), str, &task_req->header, - &task_req->input_param1); + trace_ufshcd_upiu(dev_name(hba->dev), str, &descp->req_header, + &descp->input_param1); } static void ufshcd_add_command_trace(struct ufs_hba *hba, @@ -475,22 +472,13 @@ void ufshcd_print_trs(struct ufs_hba *hba, unsigned long bitmap, bool pr_prdt) static void ufshcd_print_tmrs(struct ufs_hba *hba, unsigned long bitmap) { - struct utp_task_req_desc *tmrdp; int tag; for_each_set_bit(tag, &bitmap, hba->nutmrs) { - tmrdp = &hba->utmrdl_base_addr[tag]; + struct utp_task_req_desc *tmrdp = &hba->utmrdl_base_addr[tag]; + dev_err(hba->dev, "TM[%d] - Task Management Header\n", tag); - ufshcd_hex_dump("TM TRD: ", &tmrdp->header, - sizeof(struct request_desc_header)); - dev_err(hba->dev, "TM[%d] - Task Management Request UPIU\n", - tag); - ufshcd_hex_dump("TM REQ: ", tmrdp->task_req_upiu, - sizeof(struct utp_upiu_req)); - dev_err(hba->dev, "TM[%d] - Task Management Response UPIU\n", - tag); - ufshcd_hex_dump("TM RSP: ", tmrdp->task_rsp_upiu, - sizeof(struct utp_task_req_desc)); + ufshcd_hex_dump("", tmrdp, sizeof(*tmrdp)); } } @@ -4638,31 +4626,22 @@ static void ufshcd_slave_destroy(struct scsi_device *sdev) */ static int ufshcd_task_req_compl(struct ufs_hba *hba, u32 index, u8 *resp) { - struct utp_task_req_desc *task_req_descp; - struct utp_upiu_task_rsp *task_rsp_upiup; + struct utp_task_req_desc *treq = hba->utmrdl_base_addr + index; unsigned long flags; int ocs_value; - int task_result; spin_lock_irqsave(hba->host->host_lock, flags); /* Clear completed tasks from outstanding_tasks */ __clear_bit(index, &hba->outstanding_tasks); - task_req_descp = hba->utmrdl_base_addr; - ocs_value = ufshcd_get_tmr_ocs(&task_req_descp[index]); + ocs_value = ufshcd_get_tmr_ocs(treq); - if (ocs_value == OCS_SUCCESS) { - task_rsp_upiup = (struct utp_upiu_task_rsp *) - task_req_descp[index].task_rsp_upiu; - task_result = be32_to_cpu(task_rsp_upiup->output_param1); - task_result = task_result & MASK_TM_SERVICE_RESP; - if (resp) - *resp = (u8)task_result; - } else { + if (ocs_value != OCS_SUCCESS) dev_err(hba->dev, "%s: failed, ocs = 0x%x\n", __func__, ocs_value); - } + else if (resp) + *resp = be32_to_cpu(treq->output_param1) & MASK_TM_SERVICE_RESP; spin_unlock_irqrestore(hba->host->host_lock, flags); return ocs_value; @@ -5638,8 +5617,7 @@ static int ufshcd_clear_tm_cmd(struct ufs_hba *hba, int tag) static int ufshcd_issue_tm_cmd(struct ufs_hba *hba, int lun_id, int task_id, u8 tm_function, u8 *tm_response) { - struct utp_task_req_desc *task_req_descp; - struct utp_upiu_task_req *task_req_upiup; + struct utp_task_req_desc *treq; struct Scsi_Host *host; unsigned long flags; int free_slot; @@ -5657,29 +5635,23 @@ static int ufshcd_issue_tm_cmd(struct ufs_hba *hba, int lun_id, int task_id, ufshcd_hold(hba, false); spin_lock_irqsave(host->host_lock, flags); - task_req_descp = hba->utmrdl_base_addr; - task_req_descp += free_slot; + treq = hba->utmrdl_base_addr + free_slot; /* Configure task request descriptor */ - task_req_descp->header.dword_0 = cpu_to_le32(UTP_REQ_DESC_INT_CMD); - task_req_descp->header.dword_2 = - cpu_to_le32(OCS_INVALID_COMMAND_STATUS); + treq->header.dword_0 = cpu_to_le32(UTP_REQ_DESC_INT_CMD); + treq->header.dword_2 = cpu_to_le32(OCS_INVALID_COMMAND_STATUS); /* Configure task request UPIU */ - task_req_upiup = - (struct utp_upiu_task_req *) task_req_descp->task_req_upiu; task_tag = hba->nutrs + free_slot; - task_req_upiup->header.dword_0 = - UPIU_HEADER_DWORD(UPIU_TRANSACTION_TASK_REQ, 0, - lun_id, task_tag); - task_req_upiup->header.dword_1 = - UPIU_HEADER_DWORD(0, tm_function, 0, 0); + treq->req_header.dword_0 = UPIU_HEADER_DWORD(UPIU_TRANSACTION_TASK_REQ, + 0, lun_id, task_tag); + treq->req_header.dword_1 = UPIU_HEADER_DWORD(0, tm_function, 0, 0); /* * The host shall provide the same value for LUN field in the basic * header and for Input Parameter. */ - task_req_upiup->input_param1 = cpu_to_be32(lun_id); - task_req_upiup->input_param2 = cpu_to_be32(task_id); + treq->input_param1 = cpu_to_be32(lun_id); + treq->input_param2 = cpu_to_be32(task_id); ufshcd_vops_setup_task_mgmt(hba, free_slot, tm_function); diff --git a/drivers/scsi/ufs/ufshci.h b/drivers/scsi/ufs/ufshci.h index bb5d9c7..6fa889d 100644 --- a/drivers/scsi/ufs/ufshci.h +++ b/drivers/scsi/ufs/ufshci.h @@ -433,22 +433,25 @@ struct utp_transfer_req_desc { __le16 prd_table_offset; }; -/** - * struct utp_task_req_desc - UTMRD structure - * @header: UTMRD header DW-0 to DW-3 - * @task_req_upiu: Pointer to task request UPIU DW-4 to DW-11 - * @task_rsp_upiu: Pointer to task response UPIU DW12 to DW-19 +/* + * UTMRD structure. */ struct utp_task_req_desc { - /* DW 0-3 */ struct request_desc_header header; - /* DW 4-11 */ - __le32 task_req_upiu[TASK_REQ_UPIU_SIZE_DWORDS]; - - /* DW 12-19 */ - __le32 task_rsp_upiu[TASK_RSP_UPIU_SIZE_DWORDS]; + /* DW 4-11 - Task request UPIU structure */ + struct utp_upiu_header req_header; + __be32 input_param1; + __be32 input_param2; + __be32 input_param3; + __be32 __reserved1[2]; + + /* DW 12-19 - Task Management Response UPIU structure */ + struct utp_upiu_header rsp_header; + __be32 output_param1; + __be32 output_param2; + __be32 __reserved2[3]; }; #endif /* End of Header */