From patchwork Tue May 18 17:44:19 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Bart Van Assche X-Patchwork-Id: 441591 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, 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 BB147C43611 for ; Tue, 18 May 2021 17:45:23 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id A093F611AC for ; Tue, 18 May 2021 17:45:23 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1351256AbhERRql (ORCPT ); Tue, 18 May 2021 13:46:41 -0400 Received: from mail-pj1-f50.google.com ([209.85.216.50]:53770 "EHLO mail-pj1-f50.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1351241AbhERRqi (ORCPT ); Tue, 18 May 2021 13:46:38 -0400 Received: by mail-pj1-f50.google.com with SMTP id ot16so3981147pjb.3 for ; Tue, 18 May 2021 10:45:19 -0700 (PDT) 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:mime-version:content-transfer-encoding; bh=QCwcnBsEGkb/6I7Xp8+iIATj3JThU9JF8NDBXxW38I0=; b=pvbnk9Y6D53nEX2QPRNaPRPqIwsei9qflF/ywhMmbKnp1MOP/c3HuYIgQ1Wb0NFI2b dUNcnyQtTH2epv/xDpzd3/qjmBiygYklFafIar3plyMowvykxZl3Z4NeHW/954fZDuR9 GRhooV5CzdLMLY+Zc+zS5l58B/zJHBh5gsY+6fYPuHrMQFojv7vnr3N4It7ahbZU/LUb 9OGV9MIHNyow9MoEw7t0dTYQw7vYVDNGJCYTDFxeFvDYxQ1olNVROX+oTkjMIfbGpgJi HyeB27TaSnZ/7ckI0gWQGSragmIQ18xcX/grjUQlcsnyrlwyIltbVPzfNda49AS/wQ3D W9tw== X-Gm-Message-State: AOAM53345cneqHFVPd9CneMWOhJX1wThRnAEKAJgK28xVuBXC/JxE4lV eM12QOnK4iS3ousmhV5rwBL9/xi1AjU= X-Google-Smtp-Source: ABdhPJwrSaF1IWHSMXxubVjglN/WGVEY5V813dzCLXjKNA0fIdv2CsP20FbY0sReLrgiZdCFq5VVSA== X-Received: by 2002:a17:90b:3709:: with SMTP id mg9mr6118168pjb.149.1621359919388; Tue, 18 May 2021 10:45:19 -0700 (PDT) Received: from asus.hsd1.ca.comcast.net ([2601:647:4000:d7:4ae4:fc49:eafe:4150]) by smtp.gmail.com with ESMTPSA id z27sm12656920pfr.46.2021.05.18.10.45.18 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 18 May 2021 10:45:19 -0700 (PDT) From: Bart Van Assche To: "Martin K . Petersen" Cc: linux-scsi@vger.kernel.org, Bart Van Assche , Satish Kharat , Sesidhar Baddela , Karan Tilak Kumar , "James E.J. Bottomley" Subject: [PATCH v2 19/50] fnic: Use scsi_cmd_to_rq() instead of scsi_cmnd.request Date: Tue, 18 May 2021 10:44:19 -0700 Message-Id: <20210518174450.20664-20-bvanassche@acm.org> X-Mailer: git-send-email 2.31.1 In-Reply-To: <20210518174450.20664-1-bvanassche@acm.org> References: <20210518174450.20664-1-bvanassche@acm.org> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-scsi@vger.kernel.org Prepare for removal of the request pointer by using scsi_cmd_to_rq() instead. This patch does not change any functionality. Signed-off-by: Bart Van Assche --- drivers/scsi/fnic/fnic_scsi.c | 49 +++++++++++++++++------------------ 1 file changed, 24 insertions(+), 25 deletions(-) diff --git a/drivers/scsi/fnic/fnic_scsi.c b/drivers/scsi/fnic/fnic_scsi.c index 762cc8bd2653..ee02f5ed90ee 100644 --- a/drivers/scsi/fnic/fnic_scsi.c +++ b/drivers/scsi/fnic/fnic_scsi.c @@ -107,7 +107,7 @@ static void fnic_cleanup_io(struct fnic *fnic); static inline spinlock_t *fnic_io_lock_hash(struct fnic *fnic, struct scsi_cmnd *sc) { - u32 hash = sc->request->tag & (FNIC_IO_LOCKS - 1); + u32 hash = scsi_cmd_to_rq(sc)->tag & (FNIC_IO_LOCKS - 1); return &fnic->io_req_lock[hash]; } @@ -390,7 +390,7 @@ static inline int fnic_queue_wq_copy_desc(struct fnic *fnic, (rp->flags & FC_RP_FLAGS_RETRY)) exch_flags |= FCPIO_ICMND_SRFLAG_RETRY; - fnic_queue_wq_copy_desc_icmnd_16(wq, sc->request->tag, + fnic_queue_wq_copy_desc_icmnd_16(wq, scsi_cmd_to_rq(sc)->tag, 0, exch_flags, io_req->sgl_cnt, SCSI_SENSE_BUFFERSIZE, io_req->sgl_list_pa, @@ -422,6 +422,7 @@ static inline int fnic_queue_wq_copy_desc(struct fnic *fnic, */ static int fnic_queuecommand_lck(struct scsi_cmnd *sc, void (*done)(struct scsi_cmnd *)) { + struct request *rq = scsi_cmd_to_rq(sc); struct fc_lport *lp = shost_priv(sc->device->host); struct fc_rport *rport; struct fnic_io_req *io_req = NULL; @@ -511,8 +512,7 @@ static int fnic_queuecommand_lck(struct scsi_cmnd *sc, void (*done)(struct scsi_ sg_count = scsi_dma_map(sc); if (sg_count < 0) { FNIC_TRACE(fnic_queuecommand, sc->device->host->host_no, - sc->request->tag, sc, 0, sc->cmnd[0], - sg_count, CMD_STATE(sc)); + rq->tag, sc, 0, sc->cmnd[0], sg_count, CMD_STATE(sc)); mempool_free(io_req, fnic->io_req_pool); goto out; } @@ -571,7 +571,7 @@ static int fnic_queuecommand_lck(struct scsi_cmnd *sc, void (*done)(struct scsi_ * refetch the pointer under the lock. */ FNIC_TRACE(fnic_queuecommand, sc->device->host->host_no, - sc->request->tag, sc, 0, 0, 0, + rq->tag, sc, 0, 0, 0, (((u64)CMD_FLAGS(sc) << 32) | CMD_STATE(sc))); io_req = (struct fnic_io_req *)CMD_SP(sc); CMD_SP(sc) = NULL; @@ -603,8 +603,7 @@ static int fnic_queuecommand_lck(struct scsi_cmnd *sc, void (*done)(struct scsi_ sc->cmnd[5]); FNIC_TRACE(fnic_queuecommand, sc->device->host->host_no, - sc->request->tag, sc, io_req, - sg_count, cmd_trace, + rq->tag, sc, io_req, sg_count, cmd_trace, (((u64)CMD_FLAGS(sc) >> 32) | CMD_STATE(sc))); /* if only we issued IO, will we have the io lock */ @@ -1364,6 +1363,7 @@ int fnic_wq_copy_cmpl_handler(struct fnic *fnic, int copy_work_to_do) static bool fnic_cleanup_io_iter(struct scsi_cmnd *sc, void *data, bool reserved) { + struct request *rq = scsi_cmd_to_rq(sc); struct fnic *fnic = data; struct fnic_io_req *io_req; unsigned long flags = 0; @@ -1371,7 +1371,7 @@ static bool fnic_cleanup_io_iter(struct scsi_cmnd *sc, void *data, unsigned long start_time = 0; struct fnic_stats *fnic_stats = &fnic->fnic_stats; - io_lock = fnic_io_lock_tag(fnic, sc->request->tag); + io_lock = fnic_io_lock_tag(fnic, rq->tag); spin_lock_irqsave(io_lock, flags); io_req = (struct fnic_io_req *)CMD_SP(sc); @@ -1413,7 +1413,7 @@ static bool fnic_cleanup_io_iter(struct scsi_cmnd *sc, void *data, sc->result = DID_TRANSPORT_DISRUPTED << 16; FNIC_SCSI_DBG(KERN_DEBUG, fnic->lport->host, "fnic_cleanup_io: tag:0x%x : sc:0x%p duration = %lu DID_TRANSPORT_DISRUPTED\n", - sc->request->tag, sc, (jiffies - start_time)); + rq->tag, sc, jiffies - start_time); if (atomic64_read(&fnic->io_cmpl_skip)) atomic64_dec(&fnic->io_cmpl_skip); @@ -1425,10 +1425,10 @@ static bool fnic_cleanup_io_iter(struct scsi_cmnd *sc, void *data, if (!(CMD_FLAGS(sc) & FNIC_IO_ISSUED)) shost_printk(KERN_ERR, fnic->lport->host, "Calling done for IO not issued to fw: tag:0x%x sc:0x%p\n", - sc->request->tag, sc); + rq->tag, sc); FNIC_TRACE(fnic_cleanup_io, - sc->device->host->host_no, sc->request->tag, sc, + sc->device->host->host_no, rq->tag, sc, jiffies_to_msecs(jiffies - start_time), 0, ((u64)sc->cmnd[0] << 32 | (u64)sc->cmnd[2] << 24 | @@ -1566,7 +1566,7 @@ static bool fnic_rport_abort_io_iter(struct scsi_cmnd *sc, void *data, { struct fnic_rport_abort_io_iter_data *iter_data = data; struct fnic *fnic = iter_data->fnic; - int abt_tag = sc->request->tag; + int abt_tag = scsi_cmd_to_rq(sc)->tag; struct fnic_io_req *io_req; spinlock_t *io_lock; unsigned long flags; @@ -1727,6 +1727,7 @@ void fnic_terminate_rport_io(struct fc_rport *rport) */ int fnic_abort_cmd(struct scsi_cmnd *sc) { + struct request *rq = scsi_cmd_to_rq(sc); struct fc_lport *lp; struct fnic *fnic; struct fnic_io_req *io_req = NULL; @@ -1741,7 +1742,7 @@ int fnic_abort_cmd(struct scsi_cmnd *sc) struct abort_stats *abts_stats; struct terminate_stats *term_stats; enum fnic_ioreq_state old_ioreq_state; - int tag; + int tag = rq->tag; unsigned long abt_issued_time; DECLARE_COMPLETION_ONSTACK(tm_done); @@ -1757,7 +1758,6 @@ int fnic_abort_cmd(struct scsi_cmnd *sc) term_stats = &fnic->fnic_stats.term_stats; rport = starget_to_rport(scsi_target(sc->device)); - tag = sc->request->tag; FNIC_SCSI_DBG(KERN_DEBUG, fnic->lport->host, "Abort Cmd called FCID 0x%x, LUN 0x%llx TAG %x flags %x\n", @@ -1842,7 +1842,7 @@ int fnic_abort_cmd(struct scsi_cmnd *sc) /* Now queue the abort command to firmware */ int_to_scsilun(sc->device->lun, &fc_lun); - if (fnic_queue_abort_io_req(fnic, sc->request->tag, task_req, + if (fnic_queue_abort_io_req(fnic, rq->tag, task_req, fc_lun.scsi_lun, io_req)) { spin_lock_irqsave(io_lock, flags); if (CMD_STATE(sc) == FNIC_IOREQ_ABTS_PENDING) @@ -1943,8 +1943,7 @@ int fnic_abort_cmd(struct scsi_cmnd *sc) } fnic_abort_cmd_end: - FNIC_TRACE(fnic_abort_cmd, sc->device->host->host_no, - sc->request->tag, sc, + FNIC_TRACE(fnic_abort_cmd, sc->device->host->host_no, rq->tag, sc, jiffies_to_msecs(jiffies - start_time), 0, ((u64)sc->cmnd[0] << 32 | (u64)sc->cmnd[2] << 24 | (u64)sc->cmnd[3] << 16 | @@ -1994,7 +1993,7 @@ static inline int fnic_queue_dr_io_req(struct fnic *fnic, /* fill in the lun info */ int_to_scsilun(sc->device->lun, &fc_lun); - fnic_queue_wq_copy_desc_itmf(wq, sc->request->tag | FNIC_TAG_DEV_RST, + fnic_queue_wq_copy_desc_itmf(wq, scsi_cmd_to_rq(sc)->tag | FNIC_TAG_DEV_RST, 0, FCPIO_ITMF_LUN_RESET, SCSI_NO_TAG, fc_lun.scsi_lun, io_req->port_id, fnic->config.ra_tov, fnic->config.ed_tov); @@ -2025,7 +2024,7 @@ static bool fnic_pending_aborts_iter(struct scsi_cmnd *sc, struct fnic_pending_aborts_iter_data *iter_data = data; struct fnic *fnic = iter_data->fnic; struct scsi_device *lun_dev = iter_data->lun_dev; - int abt_tag = sc->request->tag; + int abt_tag = scsi_cmd_to_rq(sc)->tag; struct fnic_io_req *io_req; spinlock_t *io_lock; unsigned long flags; @@ -2206,14 +2205,15 @@ static int fnic_clean_pending_aborts(struct fnic *fnic, static inline int fnic_scsi_host_start_tag(struct fnic *fnic, struct scsi_cmnd *sc) { - struct request_queue *q = sc->request->q; + struct request *rq = scsi_cmd_to_rq(sc); + struct request_queue *q = rq->q; struct request *dummy; dummy = blk_mq_alloc_request(q, REQ_OP_WRITE, BLK_MQ_REQ_NOWAIT); if (IS_ERR(dummy)) return SCSI_NO_TAG; - sc->tag = sc->request->tag = dummy->tag; + sc->tag = rq->tag = dummy->tag; sc->host_scribble = (unsigned char *)dummy; return dummy->tag; @@ -2238,6 +2238,7 @@ fnic_scsi_host_end_tag(struct fnic *fnic, struct scsi_cmnd *sc) */ int fnic_device_reset(struct scsi_cmnd *sc) { + struct request *rq = scsi_cmd_to_rq(sc); struct fc_lport *lp; struct fnic *fnic; struct fnic_io_req *io_req = NULL; @@ -2250,7 +2251,7 @@ int fnic_device_reset(struct scsi_cmnd *sc) struct scsi_lun fc_lun; struct fnic_stats *fnic_stats; struct reset_stats *reset_stats; - int tag = 0; + int tag = rq->tag; DECLARE_COMPLETION_ONSTACK(tm_done); int tag_gen_flag = 0; /*to track tags allocated by fnic driver*/ bool new_sc = 0; @@ -2284,7 +2285,6 @@ int fnic_device_reset(struct scsi_cmnd *sc) CMD_FLAGS(sc) = FNIC_DEVICE_RESET; /* Allocate tag if not present */ - tag = sc->request->tag; if (unlikely(tag < 0)) { /* * Really should fix the midlayer to pass in a proper @@ -2458,8 +2458,7 @@ int fnic_device_reset(struct scsi_cmnd *sc) } fnic_device_reset_end: - FNIC_TRACE(fnic_device_reset, sc->device->host->host_no, - sc->request->tag, sc, + FNIC_TRACE(fnic_device_reset, sc->device->host->host_no, rq->tag, sc, jiffies_to_msecs(jiffies - start_time), 0, ((u64)sc->cmnd[0] << 32 | (u64)sc->cmnd[2] << 24 | (u64)sc->cmnd[3] << 16 |