From patchwork Mon Oct 16 09:24:20 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Hannes Reinecke X-Patchwork-Id: 734943 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 16FB5CDB474 for ; Mon, 16 Oct 2023 09:25:07 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S232970AbjJPJZF (ORCPT ); Mon, 16 Oct 2023 05:25:05 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:47030 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S232849AbjJPJYv (ORCPT ); Mon, 16 Oct 2023 05:24:51 -0400 Received: from smtp-out1.suse.de (smtp-out1.suse.de [IPv6:2001:67c:2178:6::1c]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id BAEE8EA for ; Mon, 16 Oct 2023 02:24:49 -0700 (PDT) Received: from relay2.suse.de (relay2.suse.de [149.44.160.134]) by smtp-out1.suse.de (Postfix) with ESMTP id ABE6621C45; Mon, 16 Oct 2023 09:24:44 +0000 (UTC) Received: from adalid.arch.suse.de (adalid.arch.suse.de [10.161.8.13]) by relay2.suse.de (Postfix) with ESMTP id 1D2542D10D; Mon, 16 Oct 2023 09:24:44 +0000 (UTC) Received: by adalid.arch.suse.de (Postfix, from userid 16045) id D5A0B51EBDCB; Mon, 16 Oct 2023 11:24:43 +0200 (CEST) From: Hannes Reinecke To: Christoph Hellwig Cc: "Martin K. Petersen" , James Bottomley , linux-scsi@vger.kernel.org, Hannes Reinecke Subject: [PATCH 07/17] xen-scsifront: add scsi device as argument to scsifront_do_request() Date: Mon, 16 Oct 2023 11:24:20 +0200 Message-Id: <20231016092430.55557-8-hare@suse.de> X-Mailer: git-send-email 2.35.3 In-Reply-To: <20231016092430.55557-1-hare@suse.de> References: <20231016092430.55557-1-hare@suse.de> MIME-Version: 1.0 X-Spamd-Bar: +++++++++++ Authentication-Results: smtp-out1.suse.de; dkim=none; dmarc=none; spf=softfail (smtp-out1.suse.de: 149.44.160.134 is neither permitted nor denied by domain of hare@suse.de) smtp.mailfrom=hare@suse.de X-Rspamd-Server: rspamd2 X-Spamd-Result: default: False [11.49 / 50.00]; ARC_NA(0.00)[]; FROM_HAS_DN(0.00)[]; TO_DN_SOME(0.00)[]; R_MISSING_CHARSET(2.50)[]; MIME_GOOD(-0.10)[text/plain]; DMARC_NA(0.20)[suse.de]; BROKEN_CONTENT_TYPE(1.50)[]; R_SPF_SOFTFAIL(0.60)[~all:c]; RCPT_COUNT_FIVE(0.00)[5]; TO_MATCH_ENVRCPT_SOME(0.00)[]; VIOLATED_DIRECT_SPF(3.50)[]; MX_GOOD(-0.01)[]; NEURAL_SPAM_LONG(3.00)[1.000]; MID_CONTAINS_FROM(1.00)[]; RWL_MAILSPIKE_GOOD(0.00)[149.44.160.134:from]; NEURAL_HAM_SHORT(-1.00)[-1.000]; RCVD_NO_TLS_LAST(0.10)[]; FROM_EQ_ENVFROM(0.00)[]; R_DKIM_NA(0.20)[]; MIME_TRACE(0.00)[0:+]; RCVD_COUNT_TWO(0.00)[2]; BAYES_HAM(-0.00)[12.26%] X-Rspamd-Queue-Id: ABE6621C45 Precedence: bulk List-ID: X-Mailing-List: linux-scsi@vger.kernel.org Add scsi device as argument to scsifront_do_request() so that it will be possible to call it with a NULL command pointer. Signed-off-by: Hannes Reinecke Reviewed-by: Christoph Hellwig --- drivers/scsi/xen-scsifront.c | 31 ++++++++++++++++++++----------- 1 file changed, 20 insertions(+), 11 deletions(-) diff --git a/drivers/scsi/xen-scsifront.c b/drivers/scsi/xen-scsifront.c index 9ec55ddc1204..a0c13200d53a 100644 --- a/drivers/scsi/xen-scsifront.c +++ b/drivers/scsi/xen-scsifront.c @@ -178,7 +178,8 @@ static void scsifront_put_rqid(struct vscsifrnt_info *info, uint32_t id) scsifront_wake_up(info); } -static int scsifront_do_request(struct vscsifrnt_info *info, +static int scsifront_do_request(struct scsi_device *sdev, + struct vscsifrnt_info *info, struct vscsifrnt_shadow *shadow) { struct vscsiif_front_ring *ring = &(info->ring); @@ -205,17 +206,25 @@ static int scsifront_do_request(struct vscsifrnt_info *info, ring_req->ref_rqid = shadow->ref_rqid; ring_req->nr_segments = shadow->nr_segments; - ring_req->id = sc->device->id; - ring_req->lun = sc->device->lun; - ring_req->channel = sc->device->channel; - ring_req->cmd_len = sc->cmd_len; + ring_req->id = sdev->id; + ring_req->lun = sdev->lun; + ring_req->channel = sdev->channel; - BUG_ON(sc->cmd_len > VSCSIIF_MAX_COMMAND_SIZE); + if (sc) { + ring_req->cmd_len = sc->cmd_len; - memcpy(ring_req->cmnd, sc->cmnd, sc->cmd_len); + BUG_ON(sc->cmd_len > VSCSIIF_MAX_COMMAND_SIZE); - ring_req->sc_data_direction = (uint8_t)sc->sc_data_direction; - ring_req->timeout_per_command = scsi_cmd_to_rq(sc)->timeout / HZ; + memcpy(ring_req->cmnd, sc->cmnd, sc->cmd_len); + + ring_req->sc_data_direction = (uint8_t)sc->sc_data_direction; + ring_req->timeout_per_command = + scsi_cmd_to_rq(sc)->timeout / HZ; + } else { + ring_req->cmd_len = VSCSIIF_MAX_COMMAND_SIZE; + memset(ring_req->cmnd, 0, VSCSIIF_MAX_COMMAND_SIZE); + ring_req->sc_data_direction = DMA_NONE; + } for (i = 0; i < (shadow->nr_segments & ~VSCSIIF_SG_GRANT); i++) ring_req->seg[i] = shadow->seg[i]; @@ -637,7 +646,7 @@ static int scsifront_queuecommand(struct Scsi_Host *shost, return 0; } - if (scsifront_do_request(info, shadow)) { + if (scsifront_do_request(sc->device, info, shadow)) { scsifront_gnttab_done(info, shadow); goto busy; } @@ -685,7 +694,7 @@ static int scsifront_action_handler(struct scsi_cmnd *sc, uint8_t act) if (scsifront_enter(info)) goto fail; - if (!scsifront_do_request(info, shadow)) + if (!scsifront_do_request(sc->device, info, shadow)) break; scsifront_return(info);