From patchwork Mon Oct 12 17:35:24 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Daniel Wagner X-Patchwork-Id: 11833481 Return-Path: Received: from mail.kernel.org (pdx-korg-mail-1.web.codeaurora.org [172.30.200.123]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id 2871C1592 for ; Mon, 12 Oct 2020 17:35:33 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 147EA2087D for ; Mon, 12 Oct 2020 17:35:33 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S2404118AbgJLRf3 (ORCPT ); Mon, 12 Oct 2020 13:35:29 -0400 Received: from mx2.suse.de ([195.135.220.15]:44454 "EHLO mx2.suse.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S2404115AbgJLRf3 (ORCPT ); Mon, 12 Oct 2020 13:35:29 -0400 X-Virus-Scanned: by amavisd-new at test-mx.suse.de Received: from relay2.suse.de (unknown [195.135.221.27]) by mx2.suse.de (Postfix) with ESMTP id 2E3EDB1B1; Mon, 12 Oct 2020 17:35:28 +0000 (UTC) From: Daniel Wagner To: Nilesh Javali , Arun Easi Cc: linux-scsi@vger.kernel.org, linux-kernel@vger.kernel.org, Daniel Wagner Subject: [PATCH v3] qla2xxx: Return EBUSY on fcport deletion Date: Mon, 12 Oct 2020 19:35:24 +0200 Message-Id: <20201012173524.46544-1-dwagner@suse.de> X-Mailer: git-send-email 2.16.4 Precedence: bulk List-ID: X-Mailing-List: linux-scsi@vger.kernel.org When the fcport is about to be deleted we should return EBUSY instead of ENODEV. Only for EBUSY the request will be requeued in a multipath setup. Also in case we have a valid qpair but the firmware has not yet started return EBUSY to avoid dropping the request. Signed-off-by: Daniel Wagner Reviewed-by: Arun Easi --- v3: simplify test logic as suggested by Arun. v2: rebased on mkp/staging drivers/scsi/qla2xxx/qla_nvme.c | 6 ++++-- 1 file changed, 4 insertions(+), 2 deletions(-) diff --git a/drivers/scsi/qla2xxx/qla_nvme.c b/drivers/scsi/qla2xxx/qla_nvme.c index 2cd9bd288910..1fa457a5736e 100644 --- a/drivers/scsi/qla2xxx/qla_nvme.c +++ b/drivers/scsi/qla2xxx/qla_nvme.c @@ -555,10 +555,12 @@ static int qla_nvme_post_cmd(struct nvme_fc_local_port *lport, fcport = qla_rport->fcport; - if (!qpair || !fcport || (qpair && !qpair->fw_started) || - (fcport && fcport->deleted)) + if (!qpair || !fcport) return -ENODEV; + if (!qpair->fw_started || fcport->deleted) + return -EBUSY; + vha = fcport->vha; if (!(fcport->nvme_flag & NVME_FLAG_REGISTERED))