From patchwork Fri Mar 27 05:48:48 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Saurav Kashyap X-Patchwork-Id: 11461673 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 D63461668 for ; Fri, 27 Mar 2020 05:49:00 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id B46842071B for ; Fri, 27 Mar 2020 05:49:00 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=marvell.com header.i=@marvell.com header.b="rxBCQMId" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726439AbgC0FtA (ORCPT ); Fri, 27 Mar 2020 01:49:00 -0400 Received: from mx0b-0016f401.pphosted.com ([67.231.156.173]:30008 "EHLO mx0b-0016f401.pphosted.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1725942AbgC0FtA (ORCPT ); Fri, 27 Mar 2020 01:49:00 -0400 Received: from pps.filterd (m0045851.ppops.net [127.0.0.1]) by mx0b-0016f401.pphosted.com (8.16.0.42/8.16.0.42) with SMTP id 02R5jEVk032430 for ; Thu, 26 Mar 2020 22:48:59 -0700 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=marvell.com; h=from : to : cc : subject : date : message-id : in-reply-to : references : mime-version : content-type; s=pfpt0818; bh=qQBAB8GzXWllPVGNpmhZaMQdeaddr3uZnTy++rYkIDM=; b=rxBCQMId3hNRZzZwoN7B5n3rIBcUT+G3wV5sEKRYV9f6mfCxi38wpM6j8Z7dxrjtbdtW 4oAlWYUf9OW6XvMDxeqbozIFis7fkbfwJfZ4L6rWF9bAGy9gbGR3Uvrqsq6bLI+zthXJ OQHLE/FZscj+t9tZUjqCXRVyvz57B10wffoTbhZZ7TNmoFRNmHdMIdsmqC5KfWiBgUKv Pza/dXBL3WIGxJnot1HmezUheK9xi9MpMfzXnDWVJTFKPzgw0MyL2mKF4IhZw8blnw5E 2koZ3RdKDV9jeMrx7pUrqBGx/4ij8TXP1NSOxegSg73by6z5Y85cvQ0k0PPb03Ui83Xa ww== Received: from sc-exch01.marvell.com ([199.233.58.181]) by mx0b-0016f401.pphosted.com with ESMTP id 300bpcyqp1-2 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-SHA384 bits=256 verify=NOT) for ; Thu, 26 Mar 2020 22:48:59 -0700 Received: from SC-EXCH03.marvell.com (10.93.176.83) by SC-EXCH01.marvell.com (10.93.176.81) with Microsoft SMTP Server (TLS) id 15.0.1497.2; Thu, 26 Mar 2020 22:48:56 -0700 Received: from maili.marvell.com (10.93.176.43) by SC-EXCH03.marvell.com (10.93.176.83) with Microsoft SMTP Server id 15.0.1497.2 via Frontend Transport; Thu, 26 Mar 2020 22:48:56 -0700 Received: from dut1171.mv.qlogic.com (unknown [10.112.88.18]) by maili.marvell.com (Postfix) with ESMTP id 5EDC63F7040; Thu, 26 Mar 2020 22:48:56 -0700 (PDT) Received: from dut1171.mv.qlogic.com (localhost [127.0.0.1]) by dut1171.mv.qlogic.com (8.14.7/8.14.7) with ESMTP id 02R5mua5015990; Thu, 26 Mar 2020 22:48:56 -0700 Received: (from root@localhost) by dut1171.mv.qlogic.com (8.14.7/8.14.7/Submit) id 02R5muMv015989; Thu, 26 Mar 2020 22:48:56 -0700 From: Saurav Kashyap To: CC: , Subject: [PATCH 2/3] bnx2fc: Fix scsi command completion after cleanup is posted. Date: Thu, 26 Mar 2020 22:48:48 -0700 Message-ID: <20200327054849.15947-3-skashyap@marvell.com> X-Mailer: git-send-email 2.12.0 In-Reply-To: <20200327054849.15947-1-skashyap@marvell.com> References: <20200327054849.15947-1-skashyap@marvell.com> MIME-Version: 1.0 X-Proofpoint-Virus-Version: vendor=fsecure engine=2.50.10434:6.0.138,18.0.645 definitions=2020-03-26_14:2020-03-26,2020-03-26 signatures=0 Sender: linux-scsi-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-scsi@vger.kernel.org Driver received a scsi completion after it posted the cleanup request. This leads to a problem that one of the ref count wasn't released leading to flush_active_ios to struck. The callback from libfc never returned and other ports were not processed leading to APD. - The patch will decrease the refcnt as well try to complete if something is waiting for completion. Signed-off-by: Saurav Kashyap --- drivers/scsi/bnx2fc/bnx2fc_io.c | 6 ++++++ 1 file changed, 6 insertions(+) diff --git a/drivers/scsi/bnx2fc/bnx2fc_io.c b/drivers/scsi/bnx2fc/bnx2fc_io.c index 9ab9152..2b070f0 100644 --- a/drivers/scsi/bnx2fc/bnx2fc_io.c +++ b/drivers/scsi/bnx2fc/bnx2fc_io.c @@ -1917,6 +1917,12 @@ void bnx2fc_process_scsi_cmd_compl(struct bnx2fc_cmd *io_req, /* we will not receive ABTS response for this IO */ BNX2FC_IO_DBG(io_req, "Timer context finished processing " "this scsi cmd\n"); + if (test_and_clear_bit(BNX2FC_FLAG_IO_CLEANUP, + &io_req->req_flags)) { + BNX2FC_IO_DBG(io_req, + "Actual completion after cleanup request cleaning up\n"); + bnx2fc_process_cleanup_compl(io_req, task, num_rq); + } return; }