From patchwork Sun Nov 1 18:59:34 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Mike Christie X-Patchwork-Id: 11872405 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 B841A6A2 for ; Sun, 1 Nov 2020 18:59:55 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 98E7B208A9 for ; Sun, 1 Nov 2020 18:59:55 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=oracle.com header.i=@oracle.com header.b="z7I7s2tz" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727316AbgKAS7z (ORCPT ); Sun, 1 Nov 2020 13:59:55 -0500 Received: from aserp2120.oracle.com ([141.146.126.78]:46420 "EHLO aserp2120.oracle.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1727302AbgKAS7y (ORCPT ); Sun, 1 Nov 2020 13:59:54 -0500 Received: from pps.filterd (aserp2120.oracle.com [127.0.0.1]) by aserp2120.oracle.com (8.16.0.42/8.16.0.42) with SMTP id 0A1IvTDx153649; Sun, 1 Nov 2020 18:59:52 GMT DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=oracle.com; h=from : to : subject : date : message-id : in-reply-to : references; s=corp-2020-01-29; bh=tcUxYIrNdxMOZCH1Nl4lmA18Wk5AHcW5O74hlgdV5Kc=; b=z7I7s2tzl3YzbcEsIdQ7P5oN7nLKnpKEh0RO//Ltt2ri/CZuXRO/yMrCBD5eJXHKcoJG CQxArZEmXTo/RptIA2Pj/T/znAystFIG7KDUKas8tCJFbZ6PBOj9PnILvXc2/kVEVb+p EDHTzg95wxWBIffyLPopJnpJXVYdCQobnr47twjl4AsLinO9NYr7CkTpCAj8jvHtf8YF p88Y7JLIh3y26Z7AnpGTY398R1jrpj8pDsjZGjUkmSo1FOpPKwyvJYSOCccksTTSEzQ7 cZqfy5h1HEalFkpBZgou5IfMA6KFjXg6Q45VECseWucKgExYpyupEkQqwa5D7l0dsLNA /w== Received: from userp3030.oracle.com (userp3030.oracle.com [156.151.31.80]) by aserp2120.oracle.com with ESMTP id 34hhvc1arm-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=FAIL); Sun, 01 Nov 2020 18:59:51 +0000 Received: from pps.filterd (userp3030.oracle.com [127.0.0.1]) by userp3030.oracle.com (8.16.0.42/8.16.0.42) with SMTP id 0A1IxaEd168690; Sun, 1 Nov 2020 18:59:51 GMT Received: from userv0122.oracle.com (userv0122.oracle.com [156.151.31.75]) by userp3030.oracle.com with ESMTP id 34hvrsxygg-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK); Sun, 01 Nov 2020 18:59:51 +0000 Received: from abhmp0017.oracle.com (abhmp0017.oracle.com [141.146.116.23]) by userv0122.oracle.com (8.14.4/8.14.4) with ESMTP id 0A1IxmRE006676; Sun, 1 Nov 2020 18:59:50 GMT Received: from ol2.localdomain (/73.88.28.6) by default (Oracle Beehive Gateway v4.0) with ESMTP ; Sun, 01 Nov 2020 10:59:48 -0800 From: Mike Christie To: himanshu.madhani@oracle.com, njavali@marvell.com, james.bottomley@hansenpartnership.com, linux-scsi@vger.kernel.org, target-devel@vger.kernel.org Subject: [PATCH 8/8] tcm loop: allow queues, can queue and cmd per lun to be settable Date: Sun, 1 Nov 2020 12:59:34 -0600 Message-Id: <1604257174-4524-9-git-send-email-michael.christie@oracle.com> X-Mailer: git-send-email 1.8.3.1 In-Reply-To: <1604257174-4524-1-git-send-email-michael.christie@oracle.com> References: <1604257174-4524-1-git-send-email-michael.christie@oracle.com> X-Proofpoint-Virus-Version: vendor=nai engine=6000 definitions=9792 signatures=668682 X-Proofpoint-Spam-Details: rule=notspam policy=default score=0 bulkscore=0 adultscore=0 mlxscore=0 malwarescore=0 mlxlogscore=999 suspectscore=2 spamscore=0 phishscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-2009150000 definitions=main-2011010155 X-Proofpoint-Virus-Version: vendor=nai engine=6000 definitions=9792 signatures=668682 X-Proofpoint-Spam-Details: rule=notspam policy=default score=0 spamscore=0 suspectscore=2 impostorscore=0 malwarescore=0 priorityscore=1501 mlxlogscore=999 bulkscore=0 phishscore=0 adultscore=0 mlxscore=0 lowpriorityscore=0 clxscore=1015 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-2009150000 definitions=main-2011010154 Precedence: bulk List-ID: X-Mailing-List: target-devel@vger.kernel.org Make can_queue, nr_hw_queues and cmd_per_lun settable by the user instead of hard coding them. Signed-off-by: Mike Christie Reviewed-by: Himanshu Madhani --- drivers/target/loopback/tcm_loop.c | 14 ++++++++++++-- 1 file changed, 12 insertions(+), 2 deletions(-) diff --git a/drivers/target/loopback/tcm_loop.c b/drivers/target/loopback/tcm_loop.c index 16d5a4e..badba43 100644 --- a/drivers/target/loopback/tcm_loop.c +++ b/drivers/target/loopback/tcm_loop.c @@ -46,6 +46,15 @@ static int tcm_loop_queue_status(struct se_cmd *se_cmd); +static unsigned int tcm_loop_nr_hw_queues = 1; +module_param_named(nr_hw_queues, tcm_loop_nr_hw_queues, uint, 0644); + +static unsigned int tcm_loop_can_queue = 1024; +module_param_named(can_queue, tcm_loop_can_queue, uint, 0644); + +static unsigned int tcm_loop_cmd_per_lun = 1024; +module_param_named(cmd_per_lun, tcm_loop_cmd_per_lun, uint, 0644); + /* * Called from struct target_core_fabric_ops->check_stop_free() */ @@ -305,10 +314,8 @@ static int tcm_loop_target_reset(struct scsi_cmnd *sc) .eh_abort_handler = tcm_loop_abort_task, .eh_device_reset_handler = tcm_loop_device_reset, .eh_target_reset_handler = tcm_loop_target_reset, - .can_queue = 1024, .this_id = -1, .sg_tablesize = 256, - .cmd_per_lun = 1024, .max_sectors = 0xFFFF, .dma_boundary = PAGE_SIZE - 1, .module = THIS_MODULE, @@ -342,6 +349,9 @@ static int tcm_loop_driver_probe(struct device *dev) sh->max_lun = 0; sh->max_channel = 0; sh->max_cmd_len = SCSI_MAX_VARLEN_CDB_SIZE; + sh->nr_hw_queues = tcm_loop_nr_hw_queues; + sh->can_queue = tcm_loop_can_queue; + sh->cmd_per_lun = tcm_loop_cmd_per_lun; host_prot = SHOST_DIF_TYPE1_PROTECTION | SHOST_DIF_TYPE2_PROTECTION | SHOST_DIF_TYPE3_PROTECTION | SHOST_DIX_TYPE1_PROTECTION |