From patchwork Mon Mar 14 18:14:18 2016 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Satish Kharat X-Patchwork-Id: 8583461 Return-Path: X-Original-To: patchwork-linux-scsi@patchwork.kernel.org Delivered-To: patchwork-parsemail@patchwork2.web.kernel.org Received: from mail.kernel.org (mail.kernel.org [198.145.29.136]) by patchwork2.web.kernel.org (Postfix) with ESMTP id D8CF2C0553 for ; Mon, 14 Mar 2016 18:24:07 +0000 (UTC) Received: from mail.kernel.org (localhost [127.0.0.1]) by mail.kernel.org (Postfix) with ESMTP id E442E2025B for ; Mon, 14 Mar 2016 18:24:06 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id CA6CE20259 for ; Mon, 14 Mar 2016 18:24:05 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1755172AbcCNSYE (ORCPT ); Mon, 14 Mar 2016 14:24:04 -0400 Received: from rcdn-iport-5.cisco.com ([173.37.86.76]:57496 "EHLO rcdn-iport-5.cisco.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1755001AbcCNSYD (ORCPT ); Mon, 14 Mar 2016 14:24:03 -0400 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=cisco.com; i=@cisco.com; l=3261; q=dns/txt; s=iport; t=1457979842; x=1459189442; h=from:to:subject:date:message-id; bh=cVF/oUGETsri3U5QaH7BfPdRCHCDCqKGBnU25PtTug4=; b=DFpnpOpXVIPDh+NRBRZSFvBzSqlU+DD5e7K3Yt3/Y9LJnpfIlhGQk8wa qR45YkHxu1OrFhrG2rMQGpMalcfFwy1yjGYCUsYYDs5IW2xlg0iVCPkmr iNueQBf6SxNbCg71DJ9x9sPm2VQrvlP3w8Pt93761mDwwLDvEj/bWFRF1 c=; X-IronPort-AV: E=Sophos;i="5.24,336,1454976000"; d="scan'208";a="82853638" Received: from rcdn-core-3.cisco.com ([173.37.93.154]) by rcdn-iport-5.cisco.com with ESMTP/TLS/DHE-RSA-AES256-GCM-SHA384; 14 Mar 2016 18:14:27 +0000 Received: from satishkh-lnx.cisco.com (satishkh-lnx.cisco.com [171.71.12.158]) by rcdn-core-3.cisco.com (8.14.5/8.14.5) with ESMTP id u2EIER5M021862; Mon, 14 Mar 2016 18:14:27 GMT From: Satish Kharat To: satishkh@cisco.com, linux-scsi@vger.kernel.org Subject: [PATCH 1/5] Fix to cleanup aborted IO to avoid device being offlined by mid-layer Date: Mon, 14 Mar 2016 11:14:18 -0700 Message-Id: <1457979262-26571-1-git-send-email-satishkh@cisco.com> X-Mailer: git-send-email 2.4.3 Sender: linux-scsi-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-scsi@vger.kernel.org X-Spam-Status: No, score=-14.5 required=5.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID, DKIM_VALID_AU, RCVD_IN_DNSWL_HI, RP_MATCHES_RCVD, UNPARSEABLE_RELAY, USER_IN_DEF_DKIM_WL autolearn=unavailable version=3.3.1 X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on mail.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP If an I/O times out and an abort issued by host, if the abort is successful we need to set scsi status as DID_ABORT. Or else the mid-layer error handler which looks for this error code, will offline the device. Also if the original I/O is not found in fnic firmware, we will consider the abort as successful. Fnic driver version changed from 1.6.0.17a to 1.6.0.19, version 1.6.0.18 has been skipped Signed-off-by: Satish Kharat Reviewed-by: Ewan D. Milne --- drivers/scsi/fnic/fnic.h | 2 +- drivers/scsi/fnic/fnic_scsi.c | 32 +++++++++++++++++++++++++++----- 2 files changed, 28 insertions(+), 6 deletions(-) diff --git a/drivers/scsi/fnic/fnic.h b/drivers/scsi/fnic/fnic.h index ce129e5..52a53f8 100644 --- a/drivers/scsi/fnic/fnic.h +++ b/drivers/scsi/fnic/fnic.h @@ -39,7 +39,7 @@ #define DRV_NAME "fnic" #define DRV_DESCRIPTION "Cisco FCoE HBA Driver" -#define DRV_VERSION "1.6.0.17a" +#define DRV_VERSION "1.6.0.19" #define PFX DRV_NAME ": " #define DFX DRV_NAME "%d: " diff --git a/drivers/scsi/fnic/fnic_scsi.c b/drivers/scsi/fnic/fnic_scsi.c index 266b909..b9732b1 100644 --- a/drivers/scsi/fnic/fnic_scsi.c +++ b/drivers/scsi/fnic/fnic_scsi.c @@ -1092,6 +1092,11 @@ static void fnic_fcpio_itmf_cmpl_handler(struct fnic *fnic, atomic64_inc( &term_stats->terminate_fw_timeouts); break; + case FCPIO_ITMF_REJECTED: + FNIC_SCSI_DBG(KERN_INFO, fnic->lport->host, + "abort reject recd. id %d\n", + (int)(id & FNIC_TAG_MASK)); + break; case FCPIO_IO_NOT_FOUND: if (CMD_FLAGS(sc) & FNIC_IO_ABTS_ISSUED) atomic64_inc(&abts_stats->abort_io_not_found); @@ -1112,9 +1117,14 @@ static void fnic_fcpio_itmf_cmpl_handler(struct fnic *fnic, spin_unlock_irqrestore(io_lock, flags); return; } + CMD_ABTS_STATUS(sc) = hdr_status; CMD_FLAGS(sc) |= FNIC_IO_ABT_TERM_DONE; + /* If the status is IO not found consider it as success */ + if (hdr_status == FCPIO_IO_NOT_FOUND) + CMD_ABTS_STATUS(sc) = FCPIO_SUCCESS; + atomic64_dec(&fnic_stats->io_stats.active_ios); if (atomic64_read(&fnic->io_cmpl_skip)) atomic64_dec(&fnic->io_cmpl_skip); @@ -1927,21 +1937,33 @@ int fnic_abort_cmd(struct scsi_cmnd *sc) CMD_STATE(sc) = FNIC_IOREQ_ABTS_COMPLETE; + start_time = io_req->start_time; /* * firmware completed the abort, check the status, - * free the io_req irrespective of failure or success + * free the io_req if successful. If abort fails, + * Device reset will clean the I/O. */ - if (CMD_ABTS_STATUS(sc) != FCPIO_SUCCESS) + if (CMD_ABTS_STATUS(sc) == FCPIO_SUCCESS) { + CMD_SP(sc) = NULL; + } + else + { ret = FAILED; - - CMD_SP(sc) = NULL; + spin_unlock_irqrestore(io_lock, flags); + goto fnic_abort_cmd_end; + } spin_unlock_irqrestore(io_lock, flags); - start_time = io_req->start_time; fnic_release_ioreq_buf(fnic, io_req, sc); mempool_free(io_req, fnic->io_req_pool); + if (sc->scsi_done) { + /* Call SCSI completion function to complete the IO */ + sc->result = (DID_ABORT << 16); + sc->scsi_done(sc); + } + fnic_abort_cmd_end: FNIC_TRACE(fnic_abort_cmd, sc->device->host->host_no, sc->request->tag, sc,