From patchwork Thu Apr 28 07:53:21 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Juergen Gross X-Patchwork-Id: 568483 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 75EB7C433EF for ; Thu, 28 Apr 2022 07:53:40 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1343577AbiD1H4w (ORCPT ); Thu, 28 Apr 2022 03:56:52 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:36372 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1343523AbiD1H4n (ORCPT ); Thu, 28 Apr 2022 03:56:43 -0400 Received: from smtp-out1.suse.de (smtp-out1.suse.de [195.135.220.28]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 0EE055F26B; Thu, 28 Apr 2022 00:53:29 -0700 (PDT) Received: from imap2.suse-dmz.suse.de (imap2.suse-dmz.suse.de [192.168.254.74]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature ECDSA (P-521) server-digest SHA512) (No client certificate requested) by smtp-out1.suse.de (Postfix) with ESMTPS id AACEE21870; Thu, 28 Apr 2022 07:53:27 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=suse.com; s=susede1; t=1651132407; h=from:from:reply-to:date:date:message-id:message-id:to:to:cc:cc: mime-version:mime-version: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=e7smBjs6Cs54j9gtj63aB2bUTDoqIo4j1UzSK6xvBWg=; b=rpwyrV9E6S/d9bU0Olq3d0lZ/V4hx2lhfq8AigAGZwgiad+EOGLOiKyt3wOw0lACnEj/Gr 7XLQTGdTp6LuN7zjo3FEYVQEXr1TbhFcR68hqxGB320Bs6nK+htjcjCLxPBzEmSU/kYSB3 PFGspBJj5GfMqbXPksQC1qLa2e2SWs0= Received: from imap2.suse-dmz.suse.de (imap2.suse-dmz.suse.de [192.168.254.74]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature ECDSA (P-521) server-digest SHA512) (No client certificate requested) by imap2.suse-dmz.suse.de (Postfix) with ESMTPS id 7707F13AF8; Thu, 28 Apr 2022 07:53:27 +0000 (UTC) Received: from dovecot-director2.suse.de ([192.168.254.65]) by imap2.suse-dmz.suse.de with ESMTPSA id QDOoG/dHamIoHAAAMHmgww (envelope-from ); Thu, 28 Apr 2022 07:53:27 +0000 From: Juergen Gross To: xen-devel@lists.xenproject.org, linux-scsi@vger.kernel.org, linux-kernel@vger.kernel.org Cc: Juergen Gross , Boris Ostrovsky , Stefano Stabellini Subject: [PATCH v2 2/4] xen/scsiback: use new command result macros Date: Thu, 28 Apr 2022 09:53:21 +0200 Message-Id: <20220428075323.12853-3-jgross@suse.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20220428075323.12853-1-jgross@suse.com> References: <20220428075323.12853-1-jgross@suse.com> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-scsi@vger.kernel.org Instead of using the kernel's values for the result of PV scsi operations use the values of the interface definition. Signed-off-by: Juergen Gross --- V2: - fix scsiback_result() to pass through lowest 16 bits of result - use XEN_VSCSIIF_RSLT_HOST() instead of open coding it (Boris Ostrovsky) --- drivers/xen/xen-scsiback.c | 82 ++++++++++++++++++++++++++++++++++++-- 1 file changed, 79 insertions(+), 3 deletions(-) diff --git a/drivers/xen/xen-scsiback.c b/drivers/xen/xen-scsiback.c index 0c5e565aa8cf..7a0c93acc2c5 100644 --- a/drivers/xen/xen-scsiback.c +++ b/drivers/xen/xen-scsiback.c @@ -280,6 +280,82 @@ static void scsiback_free_translation_entry(struct kref *kref) kfree(entry); } +static int32_t scsiback_result(int32_t result) +{ + int32_t host_status; + + switch (XEN_VSCSIIF_RSLT_HOST(result)) { + case DID_OK: + host_status = XEN_VSCSIIF_RSLT_HOST_OK; + break; + case DID_NO_CONNECT: + host_status = XEN_VSCSIIF_RSLT_HOST_NO_CONNECT; + break; + case DID_BUS_BUSY: + host_status = XEN_VSCSIIF_RSLT_HOST_BUS_BUSY; + break; + case DID_TIME_OUT: + host_status = XEN_VSCSIIF_RSLT_HOST_TIME_OUT; + break; + case DID_BAD_TARGET: + host_status = XEN_VSCSIIF_RSLT_HOST_BAD_TARGET; + break; + case DID_ABORT: + host_status = XEN_VSCSIIF_RSLT_HOST_ABORT; + break; + case DID_PARITY: + host_status = XEN_VSCSIIF_RSLT_HOST_PARITY; + break; + case DID_ERROR: + host_status = XEN_VSCSIIF_RSLT_HOST_ERROR; + break; + case DID_RESET: + host_status = XEN_VSCSIIF_RSLT_HOST_RESET; + break; + case DID_BAD_INTR: + host_status = XEN_VSCSIIF_RSLT_HOST_BAD_INTR; + break; + case DID_PASSTHROUGH: + host_status = XEN_VSCSIIF_RSLT_HOST_PASSTHROUGH; + break; + case DID_SOFT_ERROR: + host_status = XEN_VSCSIIF_RSLT_HOST_SOFT_ERROR; + break; + case DID_IMM_RETRY: + host_status = XEN_VSCSIIF_RSLT_HOST_IMM_RETRY; + break; + case DID_REQUEUE: + host_status = XEN_VSCSIIF_RSLT_HOST_REQUEUE; + break; + case DID_TRANSPORT_DISRUPTED: + host_status = XEN_VSCSIIF_RSLT_HOST_TRANSPORT_DISRUPTED; + break; + case DID_TRANSPORT_FAILFAST: + host_status = XEN_VSCSIIF_RSLT_HOST_TRANSPORT_FAILFAST; + break; + case DID_TARGET_FAILURE: + host_status = XEN_VSCSIIF_RSLT_HOST_TARGET_FAILURE; + break; + case DID_NEXUS_FAILURE: + host_status = XEN_VSCSIIF_RSLT_HOST_NEXUS_FAILURE; + break; + case DID_ALLOC_FAILURE: + host_status = XEN_VSCSIIF_RSLT_HOST_ALLOC_FAILURE; + break; + case DID_MEDIUM_ERROR: + host_status = XEN_VSCSIIF_RSLT_HOST_MEDIUM_ERROR; + break; + case DID_TRANSPORT_MARGINAL: + host_status = XEN_VSCSIIF_RSLT_HOST_TRANSPORT_MARGINAL; + break; + default: + host_status = XEN_VSCSIIF_RSLT_HOST_ERROR; + break; + } + + return (host_status << 16) | (result & 0x00ffff); +} + static void scsiback_send_response(struct vscsibk_info *info, char *sense_buffer, int32_t result, uint32_t resid, uint16_t rqid) @@ -295,7 +371,7 @@ static void scsiback_send_response(struct vscsibk_info *info, ring_res = RING_GET_RESPONSE(&info->ring, info->ring.rsp_prod_pvt); info->ring.rsp_prod_pvt++; - ring_res->rslt = result; + ring_res->rslt = scsiback_result(result); ring_res->rqid = rqid; if (sense_buffer != NULL && @@ -555,7 +631,7 @@ static void scsiback_device_action(struct vscsibk_pend *pending_req, struct scsiback_nexus *nexus = tpg->tpg_nexus; struct se_cmd *se_cmd = &pending_req->se_cmd; u64 unpacked_lun = pending_req->v2p->lun; - int rc, err = FAILED; + int rc, err = XEN_VSCSIIF_RSLT_RESET_FAILED; init_completion(&pending_req->tmr_done); @@ -569,7 +645,7 @@ static void scsiback_device_action(struct vscsibk_pend *pending_req, wait_for_completion(&pending_req->tmr_done); err = (se_cmd->se_tmr_req->response == TMR_FUNCTION_COMPLETE) ? - SUCCESS : FAILED; + XEN_VSCSIIF_RSLT_RESET_SUCCESS : XEN_VSCSIIF_RSLT_RESET_FAILED; scsiback_do_resp_with_sense(NULL, err, 0, pending_req); transport_generic_free_cmd(&pending_req->se_cmd, 0);