From patchwork Tue May 3 20:06:41 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Hannes Reinecke X-Patchwork-Id: 12836182 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 1122BC433F5 for ; Tue, 3 May 2022 20:07:25 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S238391AbiECUKz (ORCPT ); Tue, 3 May 2022 16:10:55 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:45552 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S235335AbiECUKu (ORCPT ); Tue, 3 May 2022 16:10:50 -0400 Received: from smtp-out2.suse.de (smtp-out2.suse.de [195.135.220.29]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 70C4227143 for ; Tue, 3 May 2022 13:07:16 -0700 (PDT) Received: from relay2.suse.de (relay2.suse.de [149.44.160.134]) by smtp-out2.suse.de (Postfix) with ESMTP id 042DB1F749; Tue, 3 May 2022 20:07:15 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=suse.de; s=susede2_rsa; t=1651608435; 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=zMhpcvLQJ9rgyWlHSsaKP0Ft84p32yPlR6XPjBWnU8c=; b=i3Ialq9Ak1D18+/BJ1lloxRoUZim5Ge8qks5hY2ehlKNxGqFF+5RDc5SAGGEIyw6WyrgHN p07iVoel0n6vsKva/+dzEAudvPJ5qNmmu5wMzPBdcxNKiFDKXTiVQ0DUgVHdNT5TZ3DsId WU5SGEoVENotIZuy0YxdQhZ0PGN0adE= DKIM-Signature: v=1; a=ed25519-sha256; c=relaxed/relaxed; d=suse.de; s=susede2_ed25519; t=1651608435; 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=zMhpcvLQJ9rgyWlHSsaKP0Ft84p32yPlR6XPjBWnU8c=; b=Cuhw4iJe8IgAlGnSJuBM72bwxb33J+S05eEsMuXAJaKElgwPrQ2jiPeCn2WIMj6Gc2df0k PqkJwibtbeyubNBw== Received: from adalid.arch.suse.de (adalid.arch.suse.de [10.161.8.13]) by relay2.suse.de (Postfix) with ESMTP id DD5302C145; Tue, 3 May 2022 20:07:14 +0000 (UTC) Received: by adalid.arch.suse.de (Postfix, from userid 16045) id DBD5551941C8; Tue, 3 May 2022 22:07:14 +0200 (CEST) From: Hannes Reinecke To: "Martin K. Petersen" Cc: Christoph Hellwig , James Bottomley , linux-scsi@vger.kernel.org, Hannes Reinecke , Bart Van Assche Subject: [PATCH 01/24] csiostor: use fc_block_rport() Date: Tue, 3 May 2022 22:06:41 +0200 Message-Id: <20220503200704.88003-2-hare@suse.de> X-Mailer: git-send-email 2.29.2 In-Reply-To: <20220503200704.88003-1-hare@suse.de> References: <20220503200704.88003-1-hare@suse.de> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-scsi@vger.kernel.org Use fc_block_rport() instead of fc_block_scsi_eh() as the SCSI command will be removed as argument for SCSI EH functions. Signed-off-by: Hannes Reinecke Reviewed-by: Christoph Hellwig Reviewed-by: Bart Van Assche --- drivers/scsi/csiostor/csio_scsi.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/scsi/csiostor/csio_scsi.c b/drivers/scsi/csiostor/csio_scsi.c index 9aafe0002ab1..c1c410a1cfe0 100644 --- a/drivers/scsi/csiostor/csio_scsi.c +++ b/drivers/scsi/csiostor/csio_scsi.c @@ -2088,7 +2088,7 @@ csio_eh_lun_reset_handler(struct scsi_cmnd *cmnd) } /* Lnode is ready, now wait on rport node readiness */ - ret = fc_block_scsi_eh(cmnd); + ret = fc_block_rport(rn->rport); if (ret) return ret; From patchwork Tue May 3 20:06:42 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Hannes Reinecke X-Patchwork-Id: 12836184 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 D7DF8C433EF for ; Tue, 3 May 2022 20:07:29 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S240069AbiECUK6 (ORCPT ); Tue, 3 May 2022 16:10:58 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:45546 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S234023AbiECUKu (ORCPT ); Tue, 3 May 2022 16:10:50 -0400 Received: from smtp-out1.suse.de (smtp-out1.suse.de [195.135.220.28]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 70B0B26AEB for ; Tue, 3 May 2022 13:07:16 -0700 (PDT) Received: from relay2.suse.de (relay2.suse.de [149.44.160.134]) by smtp-out1.suse.de (Postfix) with ESMTP id 0898B210E3; Tue, 3 May 2022 20:07:15 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=suse.de; s=susede2_rsa; t=1651608435; 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=pIFawAYIUoMlDzbK9bGwH3WNM9R48wAocD7L52QkO1I=; b=YTG7k+SpRZK7naIStYu585yx6A9vURT4fysVp4h3oFOM/8wKlPj8G/8cuDuJ2tAR9BK3lB c36JHRF76qimwa2kXzXGqmpZ2mO7Kp3W1L3gLjsQRQmZ08d3vOf7D/wzRb1bWdQoLOLI1n dGwcZ7DIlh+BSiycpMLmiNI5hwrgbZk= DKIM-Signature: v=1; a=ed25519-sha256; c=relaxed/relaxed; d=suse.de; s=susede2_ed25519; t=1651608435; 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=pIFawAYIUoMlDzbK9bGwH3WNM9R48wAocD7L52QkO1I=; b=jz8NhULldsfbeXbMa6ugsgkEAxn5siMqk2YLeSOJL474imzNRNOid59XbErBfU9WPBWMWB Iy+JdvUXlTSQWkCA== Received: from adalid.arch.suse.de (adalid.arch.suse.de [10.161.8.13]) by relay2.suse.de (Postfix) with ESMTP id E2D8F2C149; Tue, 3 May 2022 20:07:14 +0000 (UTC) Received: by adalid.arch.suse.de (Postfix, from userid 16045) id E0DA551941CA; Tue, 3 May 2022 22:07:14 +0200 (CEST) From: Hannes Reinecke To: "Martin K. Petersen" Cc: Christoph Hellwig , James Bottomley , linux-scsi@vger.kernel.org, Hannes Reinecke , Bart Van Assche Subject: [PATCH 02/24] fc_fcp: use fc_block_rport() Date: Tue, 3 May 2022 22:06:42 +0200 Message-Id: <20220503200704.88003-3-hare@suse.de> X-Mailer: git-send-email 2.29.2 In-Reply-To: <20220503200704.88003-1-hare@suse.de> References: <20220503200704.88003-1-hare@suse.de> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-scsi@vger.kernel.org Use fc_block_rport() instead of fc_block_scsi_eh() as the SCSI command will be removed as argument for SCSI EH functions. Signed-off-by: Hannes Reinecke Reviewed-by: Christoph Hellwig Reviewed-by: Bart Van Assche --- drivers/scsi/libfc/fc_fcp.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/scsi/libfc/fc_fcp.c b/drivers/scsi/libfc/fc_fcp.c index bce90eb56c9c..074996319df5 100644 --- a/drivers/scsi/libfc/fc_fcp.c +++ b/drivers/scsi/libfc/fc_fcp.c @@ -2157,7 +2157,7 @@ int fc_eh_device_reset(struct scsi_cmnd *sc_cmd) int rc = FAILED; int rval; - rval = fc_block_scsi_eh(sc_cmd); + rval = fc_block_rport(rport); if (rval) return rval; From patchwork Tue May 3 20:06:43 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Hannes Reinecke X-Patchwork-Id: 12836183 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 94A2EC433EF for ; Tue, 3 May 2022 20:07:26 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S238804AbiECUK5 (ORCPT ); Tue, 3 May 2022 16:10:57 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:45548 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S234680AbiECUKu (ORCPT ); Tue, 3 May 2022 16:10:50 -0400 Received: from smtp-out2.suse.de (smtp-out2.suse.de [195.135.220.29]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 709AE26AC3 for ; Tue, 3 May 2022 13:07:16 -0700 (PDT) Received: from relay2.suse.de (relay2.suse.de [149.44.160.134]) by smtp-out2.suse.de (Postfix) with ESMTP id 0E6241F74B; Tue, 3 May 2022 20:07:15 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=suse.de; s=susede2_rsa; t=1651608435; 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=DXJNnr1bZ70hxjEgcWXEr+BncqNw0ZT0D911iJNukZs=; b=cc7BXBSVTzexujoHkItDrKLQKE9mrt+mJ1raX9cayeXU1vl+tMmn1Kmpu+paRgZSa/75bs 6ioFGIh4tfLWQfFE6CwybmUKBf0pho9cknQvYfOek6DrUcZlYBUdMMJeATufWQLi0hVb/U QGZj7tIXtnXgG7u4p1D7C/H9qgkGhzY= DKIM-Signature: v=1; a=ed25519-sha256; c=relaxed/relaxed; d=suse.de; s=susede2_ed25519; t=1651608435; 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=DXJNnr1bZ70hxjEgcWXEr+BncqNw0ZT0D911iJNukZs=; b=/cmO7a1eT/AYPpxneXtmXho5PG/pK27FQMHjZwFqI98q8KZntyAnPQw7qY2538QLypHnnD CzH28g9CJFIAuYCg== Received: from adalid.arch.suse.de (adalid.arch.suse.de [10.161.8.13]) by relay2.suse.de (Postfix) with ESMTP id E30322C14B; Tue, 3 May 2022 20:07:14 +0000 (UTC) Received: by adalid.arch.suse.de (Postfix, from userid 16045) id E7F6B51941CC; Tue, 3 May 2022 22:07:14 +0200 (CEST) From: Hannes Reinecke To: "Martin K. Petersen" Cc: Christoph Hellwig , James Bottomley , linux-scsi@vger.kernel.org, Hannes Reinecke , Steffen Maier , Benjamin Block Subject: [PATCH 03/24] zfcp: open-code fc_block_scsi_eh() for host reset Date: Tue, 3 May 2022 22:06:43 +0200 Message-Id: <20220503200704.88003-4-hare@suse.de> X-Mailer: git-send-email 2.29.2 In-Reply-To: <20220503200704.88003-1-hare@suse.de> References: <20220503200704.88003-1-hare@suse.de> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-scsi@vger.kernel.org When issuing a host reset we should be waiting for all ports to become unblocked; just waiting for one might be resulting in host reset to return too early. Signed-off-by: Hannes Reinecke Reviewed-by: Christoph Hellwig Cc: Steffen Maier Cc: Benjamin Block --- drivers/s390/scsi/zfcp_scsi.c | 21 +++++++++++++++------ 1 file changed, 15 insertions(+), 6 deletions(-) diff --git a/drivers/s390/scsi/zfcp_scsi.c b/drivers/s390/scsi/zfcp_scsi.c index 526ac240d9fe..2e615e1dcde6 100644 --- a/drivers/s390/scsi/zfcp_scsi.c +++ b/drivers/s390/scsi/zfcp_scsi.c @@ -373,9 +373,11 @@ static int zfcp_scsi_eh_target_reset_handler(struct scsi_cmnd *scpnt) static int zfcp_scsi_eh_host_reset_handler(struct scsi_cmnd *scpnt) { - struct zfcp_scsi_dev *zfcp_sdev = sdev_to_zfcp(scpnt->device); - struct zfcp_adapter *adapter = zfcp_sdev->port->adapter; - int ret = SUCCESS, fc_ret; + struct Scsi_Host *host = scpnt->device->host; + struct zfcp_adapter *adapter = (struct zfcp_adapter *)host->hostdata[0]; + int ret = SUCCESS; + unsigned long flags; + struct zfcp_port *port; if (!(adapter->connection_features & FSF_FEATURE_NPIV_MODE)) { zfcp_erp_port_forced_reopen_all(adapter, 0, "schrh_p"); @@ -383,9 +385,16 @@ static int zfcp_scsi_eh_host_reset_handler(struct scsi_cmnd *scpnt) } zfcp_erp_adapter_reopen(adapter, 0, "schrh_1"); zfcp_erp_wait(adapter); - fc_ret = fc_block_scsi_eh(scpnt); - if (fc_ret) - ret = fc_ret; + + spin_lock_irqsave(&adapter->port_list_lock, flags); + list_for_each_entry(port, &adapter->port_list, list) { + struct fc_rport *rport = port->rport; + + ret = fc_block_rport(rport); + if (ret) + break; + } + spin_unlock_irqrestore(&adapter->port_list_lock, flags); zfcp_dbf_scsi_eh("schrh_r", adapter, ~0, ret); return ret; From patchwork Tue May 3 20:06:44 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Hannes Reinecke X-Patchwork-Id: 12836187 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 4B142C433EF for ; Tue, 3 May 2022 20:07:36 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S241936AbiECULH (ORCPT ); Tue, 3 May 2022 16:11:07 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:45554 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S237460AbiECUKv (ORCPT ); Tue, 3 May 2022 16:10:51 -0400 Received: from smtp-out1.suse.de (smtp-out1.suse.de [195.135.220.28]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 70A4926AE3 for ; Tue, 3 May 2022 13:07:16 -0700 (PDT) Received: from relay2.suse.de (relay2.suse.de [149.44.160.134]) by smtp-out1.suse.de (Postfix) with ESMTP id 0D74D210E7; Tue, 3 May 2022 20:07:15 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=suse.de; s=susede2_rsa; t=1651608435; 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=r7HJkHr80WilWGLtgRALjqRPKQbUiMtulM1V6Eolt6I=; b=obdT/IDtxZ4xC8hmXEe4hTEaknR1qLFiapphUVqY/zhkvixOmxuMKuKA/M+8uaKBLlrxAR P6dw1X42mV2lKbmLDD4Ir+VxhTxQdUzyWoP8pwptxJqhHEZID2YGwG0TCyoUmyt4TjylPB Tc2VMEUdmhR4v5S5yXPlheWN1LUZDB4= DKIM-Signature: v=1; a=ed25519-sha256; c=relaxed/relaxed; d=suse.de; s=susede2_ed25519; t=1651608435; 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=r7HJkHr80WilWGLtgRALjqRPKQbUiMtulM1V6Eolt6I=; b=8ZIX/saGMLfU4Sh8ypOGeNS+K+ZnrjIT3EcNxavchLB1rqmGAs3IMrpmOfVGFVvnF9Qit9 Lj3qOEqWuea15NBw== Received: from adalid.arch.suse.de (adalid.arch.suse.de [10.161.8.13]) by relay2.suse.de (Postfix) with ESMTP id E56D72C14E; Tue, 3 May 2022 20:07:14 +0000 (UTC) Received: by adalid.arch.suse.de (Postfix, from userid 16045) id EF26351941CE; Tue, 3 May 2022 22:07:14 +0200 (CEST) From: Hannes Reinecke To: "Martin K. Petersen" Cc: Christoph Hellwig , James Bottomley , linux-scsi@vger.kernel.org, Hannes Reinecke Subject: [PATCH 04/24] mptfc: simplify mpt_fc_block_error_handler() Date: Tue, 3 May 2022 22:06:44 +0200 Message-Id: <20220503200704.88003-5-hare@suse.de> X-Mailer: git-send-email 2.29.2 In-Reply-To: <20220503200704.88003-1-hare@suse.de> References: <20220503200704.88003-1-hare@suse.de> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-scsi@vger.kernel.org Instead of passing the a function we can as well return a status and call the function directly afterwards. Signed-off-by: Hannes Reinecke Reviewed-by: Christoph Hellwig --- drivers/message/fusion/mptfc.c | 83 ++++++++++++++++++++++------------ 1 file changed, 54 insertions(+), 29 deletions(-) diff --git a/drivers/message/fusion/mptfc.c b/drivers/message/fusion/mptfc.c index fac747109209..ea8fc32dacfa 100644 --- a/drivers/message/fusion/mptfc.c +++ b/drivers/message/fusion/mptfc.c @@ -183,73 +183,98 @@ static struct fc_function_template mptfc_transport_functions = { }; static int -mptfc_block_error_handler(struct scsi_cmnd *SCpnt, - int (*func)(struct scsi_cmnd *SCpnt), - const char *caller) +mptfc_block_error_handler(struct fc_rport *rport) { MPT_SCSI_HOST *hd; - struct scsi_device *sdev = SCpnt->device; - struct Scsi_Host *shost = sdev->host; - struct fc_rport *rport = starget_to_rport(scsi_target(sdev)); + struct Scsi_Host *shost = rport_to_shost(rport); unsigned long flags; int ready; - MPT_ADAPTER *ioc; + MPT_ADAPTER *ioc; int loops = 40; /* seconds */ - hd = shost_priv(SCpnt->device->host); + hd = shost_priv(shost); ioc = hd->ioc; spin_lock_irqsave(shost->host_lock, flags); while ((ready = fc_remote_port_chkready(rport) >> 16) == DID_IMM_RETRY || (loops > 0 && ioc->active == 0)) { spin_unlock_irqrestore(shost->host_lock, flags); dfcprintk (ioc, printk(MYIOC_s_DEBUG_FMT - "mptfc_block_error_handler.%d: %d:%llu, port status is " - "%x, active flag %d, deferring %s recovery.\n", + "mptfc_block_error_handler.%d: %s, port status is " + "%x, active flag %d, deferring recovery.\n", ioc->name, ioc->sh->host_no, - SCpnt->device->id, SCpnt->device->lun, - ready, ioc->active, caller)); + dev_name(&rport->dev), ready, ioc->active)); msleep(1000); spin_lock_irqsave(shost->host_lock, flags); loops --; } spin_unlock_irqrestore(shost->host_lock, flags); - if (ready == DID_NO_CONNECT || !SCpnt->device->hostdata - || ioc->active == 0) { + if (ready == DID_NO_CONNECT || ioc->active == 0) { dfcprintk (ioc, printk(MYIOC_s_DEBUG_FMT - "%s.%d: %d:%llu, failing recovery, " - "port state %x, active %d, vdevice %p.\n", caller, + "mpt_block_error_handler.%d: %s, failing recovery, " + "port state %x, active %d.\n", ioc->name, ioc->sh->host_no, - SCpnt->device->id, SCpnt->device->lun, ready, - ioc->active, SCpnt->device->hostdata)); + dev_name(&rport->dev), ready, ioc->active)); return FAILED; } - dfcprintk (ioc, printk(MYIOC_s_DEBUG_FMT - "%s.%d: %d:%llu, executing recovery.\n", caller, - ioc->name, ioc->sh->host_no, - SCpnt->device->id, SCpnt->device->lun)); - return (*func)(SCpnt); + return SUCCESS; } static int mptfc_abort(struct scsi_cmnd *SCpnt) { - return - mptfc_block_error_handler(SCpnt, mptscsih_abort, __func__); + struct Scsi_Host *shost = SCpnt->device->host; + struct fc_rport *rport = starget_to_rport(scsi_target(SCpnt->device)); + MPT_SCSI_HOST __maybe_unused *hd = shost_priv(shost); + int rtn; + + rtn = mptfc_block_error_handler(rport); + if (rtn == SUCCESS) { + dfcprintk (hd->ioc, printk(MYIOC_s_DEBUG_FMT + "%s.%d: %d:%llu, executing recovery.\n", __func__, + hd->ioc->name, shost->host_no, + SCpnt->device->id, SCpnt->device->lun)); + rtn = mptscsih_abort(SCpnt); + } + return rtn; } static int mptfc_dev_reset(struct scsi_cmnd *SCpnt) { - return - mptfc_block_error_handler(SCpnt, mptscsih_dev_reset, __func__); + struct Scsi_Host *shost = SCpnt->device->host; + struct fc_rport *rport = starget_to_rport(scsi_target(SCpnt->device)); + MPT_SCSI_HOST __maybe_unused *hd = shost_priv(shost); + int rtn; + + rtn = mptfc_block_error_handler(rport); + if (rtn == SUCCESS) { + dfcprintk (hd->ioc, printk(MYIOC_s_DEBUG_FMT + "%s.%d: %d:%llu, executing recovery.\n", __func__, + hd->ioc->name, shost->host_no, + SCpnt->device->id, SCpnt->device->lun)); + rtn = mptscsih_dev_reset(SCpnt); + } + return rtn; } static int mptfc_bus_reset(struct scsi_cmnd *SCpnt) { - return - mptfc_block_error_handler(SCpnt, mptscsih_bus_reset, __func__); + struct Scsi_Host *shost = SCpnt->device->host; + struct fc_rport *rport = starget_to_rport(scsi_target(SCpnt->device)); + MPT_SCSI_HOST __maybe_unused *hd = shost_priv(shost); + int rtn; + + rtn = mptfc_block_error_handler(rport); + if (rtn == SUCCESS) { + dfcprintk (hd->ioc, printk(MYIOC_s_DEBUG_FMT + "%s.%d: %d:%llu, executing recovery.\n", __func__, + hd->ioc->name, shost->host_no, + SCpnt->device->id, SCpnt->device->lun)); + rtn = mptscsih_bus_reset(SCpnt); + } + return rtn; } static void From patchwork Tue May 3 20:06:45 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Hannes Reinecke X-Patchwork-Id: 12836185 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 8ED49C433F5 for ; Tue, 3 May 2022 20:07:31 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S240665AbiECULC (ORCPT ); Tue, 3 May 2022 16:11:02 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:45550 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S235690AbiECUKu (ORCPT ); Tue, 3 May 2022 16:10:50 -0400 Received: from smtp-out1.suse.de (smtp-out1.suse.de [195.135.220.28]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id A25812714A for ; Tue, 3 May 2022 13:07:16 -0700 (PDT) Received: from relay2.suse.de (relay2.suse.de [149.44.160.134]) by smtp-out1.suse.de (Postfix) with ESMTP id 10010210ED; Tue, 3 May 2022 20:07:15 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=suse.de; s=susede2_rsa; t=1651608435; 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=x/BdPdOVSwK2PoiZPiv+15Iq6K5R4lHm4RVThf68iWA=; b=j0F0veGRJMbH5fArdL9I04e8GZGU07Hde7k3ocf44NNQRWioFnBBJBfbrtYrKVr2a4mP9I jNkbhz9VplHV5ZcMX2MOSFFSqgTS3ctPDxm+nt8ErB3bkp7L89lZM2KEqIvqIbpExvFMwy e1dt+y9Js4tMsCpo8hIYjbJR2R4OAWY= DKIM-Signature: v=1; a=ed25519-sha256; c=relaxed/relaxed; d=suse.de; s=susede2_ed25519; t=1651608435; 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=x/BdPdOVSwK2PoiZPiv+15Iq6K5R4lHm4RVThf68iWA=; b=1YaDixckHpeHcKEpoUFIeOtcM+cEIHpKbOEYot4JcyUqQ9Cr4aQ4p4Q/kLmohixv0PJUam qfQ+XSiTtTQQ9EBg== Received: from adalid.arch.suse.de (adalid.arch.suse.de [10.161.8.13]) by relay2.suse.de (Postfix) with ESMTP id E70F62C14F; Tue, 3 May 2022 20:07:14 +0000 (UTC) Received: by adalid.arch.suse.de (Postfix, from userid 16045) id 0169B51941D0; Tue, 3 May 2022 22:07:15 +0200 (CEST) From: Hannes Reinecke To: "Martin K. Petersen" Cc: Christoph Hellwig , James Bottomley , linux-scsi@vger.kernel.org, Hannes Reinecke Subject: [PATCH 05/24] mptfusion: correct definitions for mptscsih_dev_reset() Date: Tue, 3 May 2022 22:06:45 +0200 Message-Id: <20220503200704.88003-6-hare@suse.de> X-Mailer: git-send-email 2.29.2 In-Reply-To: <20220503200704.88003-1-hare@suse.de> References: <20220503200704.88003-1-hare@suse.de> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-scsi@vger.kernel.org mptscsih_dev_reset() is _not_ a device reset, but rather a target reset. Nevertheless it's being used for either purpose. This patch adds a correct implementation for mptscsih_dev_reset(), and renames the original function to mptscsih_target_reset(). Signed-off-by: Hannes Reinecke Reviewed-by: Christoph Hellwig --- drivers/message/fusion/mptscsih.c | 55 ++++++++++++++++++++++++++++++- drivers/message/fusion/mptscsih.h | 1 + 2 files changed, 55 insertions(+), 1 deletion(-) diff --git a/drivers/message/fusion/mptscsih.c b/drivers/message/fusion/mptscsih.c index 276084ed04a6..ed21cc4d2c77 100644 --- a/drivers/message/fusion/mptscsih.c +++ b/drivers/message/fusion/mptscsih.c @@ -1794,7 +1794,7 @@ mptscsih_abort(struct scsi_cmnd * SCpnt) /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/ /** - * mptscsih_dev_reset - Perform a SCSI TARGET_RESET! new_eh variant + * mptscsih_dev_reset - Perform a SCSI LOGICAL_UNIT_RESET! * @SCpnt: Pointer to scsi_cmnd structure, IO which reset is due to * * (linux scsi_host_template.eh_dev_reset_handler routine) @@ -1809,6 +1809,58 @@ mptscsih_dev_reset(struct scsi_cmnd * SCpnt) VirtDevice *vdevice; MPT_ADAPTER *ioc; + /* If we can't locate our host adapter structure, return FAILED status. + */ + if ((hd = shost_priv(SCpnt->device->host)) == NULL){ + printk(KERN_ERR MYNAM ": lun reset: " + "Can't locate host! (sc=%p)\n", SCpnt); + return FAILED; + } + + ioc = hd->ioc; + printk(MYIOC_s_INFO_FMT "attempting lun reset! (sc=%p)\n", + ioc->name, SCpnt); + scsi_print_command(SCpnt); + + vdevice = SCpnt->device->hostdata; + if (!vdevice || !vdevice->vtarget) { + retval = 0; + goto out; + } + + retval = mptscsih_IssueTaskMgmt(hd, + MPI_SCSITASKMGMT_TASKTYPE_LOGICAL_UNIT_RESET, + vdevice->vtarget->channel, + vdevice->vtarget->id, vdevice->lun, 0, + mptscsih_get_tm_timeout(ioc)); + + out: + printk (MYIOC_s_INFO_FMT "lun reset: %s (sc=%p)\n", + ioc->name, ((retval == 0) ? "SUCCESS" : "FAILED" ), SCpnt); + + if (retval == 0) + return SUCCESS; + else + return FAILED; +} + +/*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/ +/** + * mptscsih_target_reset - Perform a SCSI TARGET_RESET! + * @SCpnt: Pointer to scsi_cmnd structure, IO which reset is due to + * + * (linux scsi_host_template.eh_target_reset_handler routine) + * + * Returns SUCCESS or FAILED. + **/ +int +mptscsih_target_reset(struct scsi_cmnd * SCpnt) +{ + MPT_SCSI_HOST *hd; + int retval; + VirtDevice *vdevice; + MPT_ADAPTER *ioc; + /* If we can't locate our host adapter structure, return FAILED status. */ if ((hd = shost_priv(SCpnt->device->host)) == NULL){ @@ -3257,6 +3309,7 @@ EXPORT_SYMBOL(mptscsih_slave_destroy); EXPORT_SYMBOL(mptscsih_slave_configure); EXPORT_SYMBOL(mptscsih_abort); EXPORT_SYMBOL(mptscsih_dev_reset); +EXPORT_SYMBOL(mptscsih_target_reset); EXPORT_SYMBOL(mptscsih_bus_reset); EXPORT_SYMBOL(mptscsih_host_reset); EXPORT_SYMBOL(mptscsih_bios_param); diff --git a/drivers/message/fusion/mptscsih.h b/drivers/message/fusion/mptscsih.h index a22c5eaf703c..e3d92c392673 100644 --- a/drivers/message/fusion/mptscsih.h +++ b/drivers/message/fusion/mptscsih.h @@ -120,6 +120,7 @@ extern void mptscsih_slave_destroy(struct scsi_device *device); extern int mptscsih_slave_configure(struct scsi_device *device); extern int mptscsih_abort(struct scsi_cmnd * SCpnt); extern int mptscsih_dev_reset(struct scsi_cmnd * SCpnt); +extern int mptscsih_target_reset(struct scsi_cmnd * SCpnt); extern int mptscsih_bus_reset(struct scsi_cmnd * SCpnt); extern int mptscsih_host_reset(struct scsi_cmnd *SCpnt); extern int mptscsih_bios_param(struct scsi_device * sdev, struct block_device *bdev, sector_t capacity, int geom[]); From patchwork Tue May 3 20:06:46 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Hannes Reinecke X-Patchwork-Id: 12836180 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 5D290C433EF for ; Tue, 3 May 2022 20:07:21 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S237650AbiECUKv (ORCPT ); Tue, 3 May 2022 16:10:51 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:45518 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S231220AbiECUKu (ORCPT ); Tue, 3 May 2022 16:10:50 -0400 Received: from smtp-out1.suse.de (smtp-out1.suse.de [195.135.220.28]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 8011527148 for ; Tue, 3 May 2022 13:07:16 -0700 (PDT) Received: from relay2.suse.de (relay2.suse.de [149.44.160.134]) by smtp-out1.suse.de (Postfix) with ESMTP id 110EF210EE; Tue, 3 May 2022 20:07:15 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=suse.de; s=susede2_rsa; t=1651608435; 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=eaC19SeuiWS9hN6nsljdN0K5RUABPsTK3K3J97t2gDI=; b=eZn6HFSKRylV5J11V9QpJDfcRtzWpfWHgu4+Ck9w3EH+c2We4jNaH/JtZWk2zaqma+/zec v/w7DLjxuYE2PapzV2dHQ6+gGMlPVBlcHA5PRb0ZqnPBn84PFL+GSWQpRHNomQUjB4NOuZ iy4cb6raDLMLgJsbhRhQJVTOGIqbYcg= DKIM-Signature: v=1; a=ed25519-sha256; c=relaxed/relaxed; d=suse.de; s=susede2_ed25519; t=1651608435; 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=eaC19SeuiWS9hN6nsljdN0K5RUABPsTK3K3J97t2gDI=; b=PNhadx7RxJCJHeigtyK3mSXpdj2P2d82HkdmfrFRhCRFSzkCPLlWpmcUKYkot8Vxlfrfjq PNaH0HOpaozKPqDQ== Received: from adalid.arch.suse.de (adalid.arch.suse.de [10.161.8.13]) by relay2.suse.de (Postfix) with ESMTP id EC0B22C152; Tue, 3 May 2022 20:07:14 +0000 (UTC) Received: by adalid.arch.suse.de (Postfix, from userid 16045) id 0721551941D2; Tue, 3 May 2022 22:07:15 +0200 (CEST) From: Hannes Reinecke To: "Martin K. Petersen" Cc: Christoph Hellwig , James Bottomley , linux-scsi@vger.kernel.org, Hannes Reinecke Subject: [PATCH 06/24] mptfc: open-code mptfc_block_error_handler() for bus reset Date: Tue, 3 May 2022 22:06:46 +0200 Message-Id: <20220503200704.88003-7-hare@suse.de> X-Mailer: git-send-email 2.29.2 In-Reply-To: <20220503200704.88003-1-hare@suse.de> References: <20220503200704.88003-1-hare@suse.de> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-scsi@vger.kernel.org When calling bus_reset we have potentially several ports to be reset, so this patch open-codes the existing mptfc_block_error_handler() to wait for all ports attached to this bus. Signed-off-by: Hannes Reinecke Reviewed-by: Christoph Hellwig --- drivers/message/fusion/mptfc.c | 17 ++++++++++++++--- 1 file changed, 14 insertions(+), 3 deletions(-) diff --git a/drivers/message/fusion/mptfc.c b/drivers/message/fusion/mptfc.c index ea8fc32dacfa..4a621380a4eb 100644 --- a/drivers/message/fusion/mptfc.c +++ b/drivers/message/fusion/mptfc.c @@ -262,12 +262,23 @@ static int mptfc_bus_reset(struct scsi_cmnd *SCpnt) { struct Scsi_Host *shost = SCpnt->device->host; - struct fc_rport *rport = starget_to_rport(scsi_target(SCpnt->device)); MPT_SCSI_HOST __maybe_unused *hd = shost_priv(shost); + int channel = SCpnt->device->channel; + struct mptfc_rport_info *ri; int rtn; - rtn = mptfc_block_error_handler(rport); - if (rtn == SUCCESS) { + list_for_each_entry(ri, &hd->ioc->fc_rports, list) { + if (ri->flags & MPT_RPORT_INFO_FLAGS_REGISTERED) { + VirtTarget *vtarget = ri->starget->hostdata; + + if (!vtarget || vtarget->channel != channel) + continue; + rtn = fc_block_rport(ri->rport); + if (rtn != 0) + break; + } + } + if (rtn == 0) { dfcprintk (hd->ioc, printk(MYIOC_s_DEBUG_FMT "%s.%d: %d:%llu, executing recovery.\n", __func__, hd->ioc->name, shost->host_no, From patchwork Tue May 3 20:06:47 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Hannes Reinecke X-Patchwork-Id: 12836188 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 BE19BC433F5 for ; Tue, 3 May 2022 20:07:37 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S240217AbiECULI (ORCPT ); Tue, 3 May 2022 16:11:08 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:45560 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S237622AbiECUKv (ORCPT ); Tue, 3 May 2022 16:10:51 -0400 Received: from smtp-out1.suse.de (smtp-out1.suse.de [195.135.220.28]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id C64C43FBE9 for ; Tue, 3 May 2022 13:07:16 -0700 (PDT) Received: from relay2.suse.de (relay2.suse.de [149.44.160.134]) by smtp-out1.suse.de (Postfix) with ESMTP id 19290210F4; Tue, 3 May 2022 20:07:15 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=suse.de; s=susede2_rsa; t=1651608435; 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=KjyRz3GFlle5hZ2aZwjpnqSxHbdLLBRt4/zMitpGui4=; b=lu/9OsIenSZim/BxGL7DPhMnVSjkt7iycJpr1y7zPrigC6WCD88M+SP1V5Wfndll2rFJGu KI0ubJpsUmqJXVI1JshAmbB+q22YeYSYmFeI8imtpD+cY89TDGsDPUI1ijxHflgE15bR7T CLsrWYC4g6C7tJ/BMG3m6kNwijbgdZM= DKIM-Signature: v=1; a=ed25519-sha256; c=relaxed/relaxed; d=suse.de; s=susede2_ed25519; t=1651608435; 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=KjyRz3GFlle5hZ2aZwjpnqSxHbdLLBRt4/zMitpGui4=; b=OiWf86YzTvXnhb68XECtfw9YjYk/xuaeDIXlo3TYYMrl4si4W+VXthkVmiC+G/4FrsBqnT HUHHlapvcmYp/bCw== Received: from adalid.arch.suse.de (adalid.arch.suse.de [10.161.8.13]) by relay2.suse.de (Postfix) with ESMTP id F34752C153; Tue, 3 May 2022 20:07:14 +0000 (UTC) Received: by adalid.arch.suse.de (Postfix, from userid 16045) id 0E1A051941D4; Tue, 3 May 2022 22:07:15 +0200 (CEST) From: Hannes Reinecke To: "Martin K. Petersen" Cc: Christoph Hellwig , James Bottomley , linux-scsi@vger.kernel.org, Hannes Reinecke , Saurav Kashyap Subject: [PATCH 07/24] qedf: use fc rport as argument for qedf_initiate_tmf() Date: Tue, 3 May 2022 22:06:47 +0200 Message-Id: <20220503200704.88003-8-hare@suse.de> X-Mailer: git-send-email 2.29.2 In-Reply-To: <20220503200704.88003-1-hare@suse.de> References: <20220503200704.88003-1-hare@suse.de> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-scsi@vger.kernel.org When sending a TMF we're only concerned with the rport and the LUN ID, so use struct fc_rport as argument for qedf_initiate_tmf(). Signed-off-by: Hannes Reinecke Reviewed-by: Christoph Hellwig Cc: Saurav Kashyap --- drivers/scsi/qedf/qedf.h | 5 ++- drivers/scsi/qedf/qedf_io.c | 75 ++++++++++------------------------- drivers/scsi/qedf/qedf_main.c | 19 ++++----- 3 files changed, 33 insertions(+), 66 deletions(-) diff --git a/drivers/scsi/qedf/qedf.h b/drivers/scsi/qedf/qedf.h index c5c0bbdafc4e..80814bcf4db1 100644 --- a/drivers/scsi/qedf/qedf.h +++ b/drivers/scsi/qedf/qedf.h @@ -112,6 +112,7 @@ struct qedf_ioreq { #define QEDF_CMD_ERR_SCSI_DONE 0x5 u8 io_req_flags; uint8_t tm_flags; + u64 tm_lun; struct qedf_rport *fcport; #define QEDF_CMD_ST_INACTIVE 0 #define QEDFC_CMD_ST_IO_ACTIVE 1 @@ -497,7 +498,7 @@ extern void qedf_process_warning_compl(struct qedf_ctx *qedf, struct fcoe_cqe *cqe, struct qedf_ioreq *io_req); extern void qedf_process_error_detect(struct qedf_ctx *qedf, struct fcoe_cqe *cqe, struct qedf_ioreq *io_req); -extern void qedf_flush_active_ios(struct qedf_rport *fcport, int lun); +extern void qedf_flush_active_ios(struct qedf_rport *fcport, u64 lun); extern void qedf_release_cmd(struct kref *ref); extern int qedf_initiate_abts(struct qedf_ioreq *io_req, bool return_scsi_cmd_on_abts); @@ -522,7 +523,7 @@ extern int qedf_initiate_cleanup(struct qedf_ioreq *io_req, bool return_scsi_cmd_on_abts); extern void qedf_process_cleanup_compl(struct qedf_ctx *qedf, struct fcoe_cqe *cqe, struct qedf_ioreq *io_req); -extern int qedf_initiate_tmf(struct scsi_cmnd *sc_cmd, u8 tm_flags); +extern int qedf_initiate_tmf(struct fc_rport *rport, u64 lun, u8 tm_flags); extern void qedf_process_tmf_compl(struct qedf_ctx *qedf, struct fcoe_cqe *cqe, struct qedf_ioreq *io_req); extern void qedf_process_cqe(struct qedf_ctx *qedf, struct fcoe_cqe *cqe); diff --git a/drivers/scsi/qedf/qedf_io.c b/drivers/scsi/qedf/qedf_io.c index 2ec1f710fd1d..5d82fd95e74c 100644 --- a/drivers/scsi/qedf/qedf_io.c +++ b/drivers/scsi/qedf/qedf_io.c @@ -546,7 +546,7 @@ static int qedf_build_bd_list_from_sg(struct qedf_ioreq *io_req) } static void qedf_build_fcp_cmnd(struct qedf_ioreq *io_req, - struct fcp_cmnd *fcp_cmnd) + struct fcp_cmnd *fcp_cmnd) { struct scsi_cmnd *sc_cmd = io_req->sc_cmd; @@ -554,8 +554,12 @@ static void qedf_build_fcp_cmnd(struct qedf_ioreq *io_req, memset(fcp_cmnd, 0, FCP_CMND_LEN); /* 8 bytes: SCSI LUN info */ - int_to_scsilun(sc_cmd->device->lun, - (struct scsi_lun *)&fcp_cmnd->fc_lun); + if (io_req->cmd_type == QEDF_TASK_MGMT_CMD) + int_to_scsilun(io_req->tm_lun, + (struct scsi_lun *)&fcp_cmnd->fc_lun); + else + int_to_scsilun(sc_cmd->device->lun, + (struct scsi_lun *)&fcp_cmnd->fc_lun); /* 4 bytes: flag info */ fcp_cmnd->fc_pri_ta = 0; @@ -1096,7 +1100,7 @@ static void qedf_parse_fcp_rsp(struct qedf_ioreq *io_req, } /* The sense buffer can be NULL for TMF commands */ - if (sc_cmd->sense_buffer) { + if (sc_cmd && sc_cmd->sense_buffer) { memset(sc_cmd->sense_buffer, 0, SCSI_SENSE_BUFFERSIZE); if (fcp_sns_len) memcpy(sc_cmd->sense_buffer, sense_data, @@ -1581,7 +1585,7 @@ static void qedf_flush_els_req(struct qedf_ctx *qedf, /* A value of -1 for lun is a wild card that means flush all * active SCSI I/Os for the target. */ -void qedf_flush_active_ios(struct qedf_rport *fcport, int lun) +void qedf_flush_active_ios(struct qedf_rport *fcport, u64 lun) { struct qedf_ioreq *io_req; struct qedf_ctx *qedf; @@ -1769,10 +1773,6 @@ void qedf_flush_active_ios(struct qedf_rport *fcport, int lun) kref_put(&io_req->refcount, qedf_release_cmd); continue; } - if (lun > -1) { - if (io_req->lun != lun) - continue; - } /* * Use kref_get_unless_zero in the unlikely case the command @@ -2282,7 +2282,7 @@ void qedf_process_cleanup_compl(struct qedf_ctx *qedf, struct fcoe_cqe *cqe, complete(&io_req->cleanup_done); } -static int qedf_execute_tmf(struct qedf_rport *fcport, struct scsi_cmnd *sc_cmd, +static int qedf_execute_tmf(struct qedf_rport *fcport, u64 tm_lun, uint8_t tm_flags) { struct qedf_ioreq *io_req; @@ -2292,17 +2292,10 @@ static int qedf_execute_tmf(struct qedf_rport *fcport, struct scsi_cmnd *sc_cmd, int rc = 0; uint16_t xid; int tmo = 0; - int lun = 0; unsigned long flags; struct fcoe_wqe *sqe; u16 sqe_idx; - if (!sc_cmd) { - QEDF_ERR(&qedf->dbg_ctx, "sc_cmd is NULL\n"); - return FAILED; - } - - lun = (int)sc_cmd->device->lun; if (!test_bit(QEDF_RPORT_SESSION_READY, &fcport->flags)) { QEDF_ERR(&(qedf->dbg_ctx), "fcport not offloaded\n"); rc = FAILED; @@ -2322,7 +2315,7 @@ static int qedf_execute_tmf(struct qedf_rport *fcport, struct scsi_cmnd *sc_cmd, qedf->target_resets++; /* Initialize rest of io_req fields */ - io_req->sc_cmd = sc_cmd; + io_req->sc_cmd = NULL; io_req->fcport = fcport; io_req->cmd_type = QEDF_TASK_MGMT_CMD; @@ -2336,6 +2329,7 @@ static int qedf_execute_tmf(struct qedf_rport *fcport, struct scsi_cmnd *sc_cmd, /* Default is to return a SCSI command when an error occurs */ io_req->return_scsi_cmd_on_abts = false; + io_req->tm_lun = tm_lun; /* Obtain exchange id */ xid = io_req->xid; @@ -2390,7 +2384,7 @@ static int qedf_execute_tmf(struct qedf_rport *fcport, struct scsi_cmnd *sc_cmd, if (tm_flags == FCP_TMF_LUN_RESET) - qedf_flush_active_ios(fcport, lun); + qedf_flush_active_ios(fcport, tm_lun); else qedf_flush_active_ios(fcport, -1); @@ -2405,23 +2399,18 @@ static int qedf_execute_tmf(struct qedf_rport *fcport, struct scsi_cmnd *sc_cmd, return rc; } -int qedf_initiate_tmf(struct scsi_cmnd *sc_cmd, u8 tm_flags) +int qedf_initiate_tmf(struct fc_rport *rport, u64 lun, u8 tm_flags) { - struct fc_rport *rport = starget_to_rport(scsi_target(sc_cmd->device)); struct fc_rport_libfc_priv *rp = rport->dd_data; struct qedf_rport *fcport = (struct qedf_rport *)&rp[1]; - struct qedf_ctx *qedf; - struct fc_lport *lport = shost_priv(sc_cmd->device->host); + struct qedf_ctx *qedf = fcport->qedf; + struct fc_lport *lport = rp->local_port; int rc = SUCCESS; - int rval; - struct qedf_ioreq *io_req = NULL; - int ref_cnt = 0; struct fc_rport_priv *rdata = fcport->rdata; QEDF_ERR(NULL, - "tm_flags 0x%x sc_cmd %p op = 0x%02x target_id = 0x%x lun=%d\n", - tm_flags, sc_cmd, sc_cmd->cmd_len ? sc_cmd->cmnd[0] : 0xff, - rport->scsi_target_id, (int)sc_cmd->device->lun); + "tm_flags 0x%x target_id = 0x%x lun=%llu\n", + tm_flags, rport->scsi_target_id, lun); if (!rdata || !kref_get_unless_zero(&rdata->kref)) { QEDF_ERR(NULL, "stale rport\n"); @@ -2432,33 +2421,10 @@ int qedf_initiate_tmf(struct scsi_cmnd *sc_cmd, u8 tm_flags) (tm_flags == FCP_TMF_TGT_RESET) ? "TARGET RESET" : "LUN RESET"); - if (qedf_priv(sc_cmd)->io_req) { - io_req = qedf_priv(sc_cmd)->io_req; - ref_cnt = kref_read(&io_req->refcount); - QEDF_ERR(NULL, - "orig io_req = %p xid = 0x%x ref_cnt = %d.\n", - io_req, io_req->xid, ref_cnt); - } - - rval = fc_remote_port_chkready(rport); - if (rval) { - QEDF_ERR(NULL, "device_reset rport not ready\n"); - rc = FAILED; - goto tmf_err; - } - - rc = fc_block_scsi_eh(sc_cmd); + rc = fc_block_rport(rport); if (rc) goto tmf_err; - if (!fcport) { - QEDF_ERR(NULL, "device_reset: rport is NULL\n"); - rc = FAILED; - goto tmf_err; - } - - qedf = fcport->qedf; - if (!qedf) { QEDF_ERR(NULL, "qedf is NULL.\n"); rc = FAILED; @@ -2495,7 +2461,7 @@ int qedf_initiate_tmf(struct scsi_cmnd *sc_cmd, u8 tm_flags) goto tmf_err; } - rc = qedf_execute_tmf(fcport, sc_cmd, tm_flags); + rc = qedf_execute_tmf(fcport, lun, tm_flags); tmf_err: kref_put(&rdata->kref, fc_rport_destroy); @@ -2512,7 +2478,6 @@ void qedf_process_tmf_compl(struct qedf_ctx *qedf, struct fcoe_cqe *cqe, fcp_rsp = &cqe->cqe_info.rsp_info; qedf_parse_fcp_rsp(io_req, fcp_rsp); - io_req->sc_cmd = NULL; complete(&io_req->tm_done); } diff --git a/drivers/scsi/qedf/qedf_main.c b/drivers/scsi/qedf/qedf_main.c index 18dc68d577b6..85ccfbc5cd26 100644 --- a/drivers/scsi/qedf/qedf_main.c +++ b/drivers/scsi/qedf/qedf_main.c @@ -773,7 +773,7 @@ static int qedf_eh_abort(struct scsi_cmnd *sc_cmd) goto drop_rdata_kref; } - rc = fc_block_scsi_eh(sc_cmd); + rc = fc_block_rport(rport); if (rc) goto drop_rdata_kref; @@ -857,18 +857,19 @@ static int qedf_eh_abort(struct scsi_cmnd *sc_cmd) static int qedf_eh_target_reset(struct scsi_cmnd *sc_cmd) { - QEDF_ERR(NULL, "%d:0:%d:%lld: TARGET RESET Issued...", - sc_cmd->device->host->host_no, sc_cmd->device->id, - sc_cmd->device->lun); - return qedf_initiate_tmf(sc_cmd, FCP_TMF_TGT_RESET); + struct scsi_target *starget = scsi_target(sc_cmd->device); + struct fc_rport *rport = starget_to_rport(starget); + + QEDF_ERR(NULL, "TARGET RESET Issued..."); + return qedf_initiate_tmf(rport, 0, FCP_TMF_TGT_RESET); } static int qedf_eh_device_reset(struct scsi_cmnd *sc_cmd) { - QEDF_ERR(NULL, "%d:0:%d:%lld: LUN RESET Issued... ", - sc_cmd->device->host->host_no, sc_cmd->device->id, - sc_cmd->device->lun); - return qedf_initiate_tmf(sc_cmd, FCP_TMF_LUN_RESET); + struct fc_rport *rport = starget_to_rport(scsi_target(sc_cmd->device)); + + QEDF_ERR(NULL, "LUN RESET Issued...\n"); + return qedf_initiate_tmf(rport, sc_cmd->device->lun, FCP_TMF_LUN_RESET); } bool qedf_wait_for_upload(struct qedf_ctx *qedf) From patchwork Tue May 3 20:06:48 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Hannes Reinecke X-Patchwork-Id: 12836190 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 6159AC4332F for ; Tue, 3 May 2022 20:07:39 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S237797AbiECULK (ORCPT ); Tue, 3 May 2022 16:11:10 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:45592 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S231220AbiECUKw (ORCPT ); Tue, 3 May 2022 16:10:52 -0400 Received: from smtp-out1.suse.de (smtp-out1.suse.de [195.135.220.28]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 349372656D for ; Tue, 3 May 2022 13:07:19 -0700 (PDT) Received: from relay2.suse.de (relay2.suse.de [149.44.160.134]) by smtp-out1.suse.de (Postfix) with ESMTP id 2120C2186F; Tue, 3 May 2022 20:07:15 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=suse.de; s=susede2_rsa; t=1651608435; 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=AX43t+oaz3vAKC2scQM/y92W9kBOUvjIT4UgBZI4vJw=; b=0LmlteiGrw9wohzd3QIvMSoTmVo5jShQzsFX/S3CJEQnV0xGUVaypGCe/hgAqLq+CLQdap 6JNLGhH6GZlvcTSFg7I69DVVdAg6B/dc6aLUQE7A/RCQ652EXSLUStZnAskd0kLDhRBfwM DlJdYhoK1qwaCFmzCJQcRHvV662+VQY= DKIM-Signature: v=1; a=ed25519-sha256; c=relaxed/relaxed; d=suse.de; s=susede2_ed25519; t=1651608435; 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=AX43t+oaz3vAKC2scQM/y92W9kBOUvjIT4UgBZI4vJw=; b=SG6xa4sx1LIFs7tWHePVbJpUn4fO676P9bTPTS3IkkKNVLOamEADNHhajKL6ouxlzKj9JZ uc8rdTkj1naR8kBw== Received: from adalid.arch.suse.de (adalid.arch.suse.de [10.161.8.13]) by relay2.suse.de (Postfix) with ESMTP id 053062C15A; Tue, 3 May 2022 20:07:15 +0000 (UTC) Received: by adalid.arch.suse.de (Postfix, from userid 16045) id 1564751941D6; Tue, 3 May 2022 22:07:15 +0200 (CEST) From: Hannes Reinecke To: "Martin K. Petersen" Cc: Christoph Hellwig , James Bottomley , linux-scsi@vger.kernel.org, Hannes Reinecke , Saurav Kashyap Subject: [PATCH 08/24] bnx2fc: Do not rely on a scsi command for lun or target reset Date: Tue, 3 May 2022 22:06:48 +0200 Message-Id: <20220503200704.88003-9-hare@suse.de> X-Mailer: git-send-email 2.29.2 In-Reply-To: <20220503200704.88003-1-hare@suse.de> References: <20220503200704.88003-1-hare@suse.de> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-scsi@vger.kernel.org When a LUN or target reset is issued we should not rely on a scsi command to be present; we'll have to reset the entire device or target anyway. Signed-off-by: Hannes Reinecke Reviewed-by: Christoph Hellwig Cc: Saurav Kashyap --- drivers/scsi/bnx2fc/bnx2fc.h | 1 + drivers/scsi/bnx2fc/bnx2fc_hwi.c | 14 +++-- drivers/scsi/bnx2fc/bnx2fc_io.c | 94 ++++++++++++++++---------------- 3 files changed, 57 insertions(+), 52 deletions(-) diff --git a/drivers/scsi/bnx2fc/bnx2fc.h b/drivers/scsi/bnx2fc/bnx2fc.h index 046247420cfa..7e74f77da14f 100644 --- a/drivers/scsi/bnx2fc/bnx2fc.h +++ b/drivers/scsi/bnx2fc/bnx2fc.h @@ -384,6 +384,7 @@ struct bnx2fc_rport { }; struct bnx2fc_mp_req { + u64 tm_lun; u8 tm_flags; u32 req_len; diff --git a/drivers/scsi/bnx2fc/bnx2fc_hwi.c b/drivers/scsi/bnx2fc/bnx2fc_hwi.c index 776544385598..090d436bcef8 100644 --- a/drivers/scsi/bnx2fc/bnx2fc_hwi.c +++ b/drivers/scsi/bnx2fc/bnx2fc_hwi.c @@ -1709,7 +1709,8 @@ void bnx2fc_init_task(struct bnx2fc_cmd *io_req, struct fcoe_cached_sge_ctx *cached_sge; struct fcoe_ext_mul_sges_ctx *sgl; int dev_type = tgt->dev_type; - u64 *fcp_cmnd; + struct fcp_cmnd *fcp_cmnd; + u64 *raw_fcp_cmnd; u64 tmp_fcp_cmnd[4]; u32 context_id; int cnt, i; @@ -1778,16 +1779,19 @@ void bnx2fc_init_task(struct bnx2fc_cmd *io_req, task->txwr_rxrd.union_ctx.tx_seq.ctx.seq_cnt = 1; /* Fill FCP_CMND IU */ - fcp_cmnd = (u64 *) + fcp_cmnd = (struct fcp_cmnd *)&tmp_fcp_cmnd; + bnx2fc_build_fcp_cmnd(io_req, fcp_cmnd); + int_to_scsilun(sc_cmd->device->lun, &fcp_cmnd->fc_lun); + memcpy(fcp_cmnd->fc_cdb, sc_cmd->cmnd, sc_cmd->cmd_len); + raw_fcp_cmnd = (u64 *) task->txwr_rxrd.union_ctx.fcp_cmd.opaque; - bnx2fc_build_fcp_cmnd(io_req, (struct fcp_cmnd *)&tmp_fcp_cmnd); /* swap fcp_cmnd */ cnt = sizeof(struct fcp_cmnd) / sizeof(u64); for (i = 0; i < cnt; i++) { - *fcp_cmnd = cpu_to_be64(tmp_fcp_cmnd[i]); - fcp_cmnd++; + *raw_fcp_cmnd = cpu_to_be64(tmp_fcp_cmnd[i]); + raw_fcp_cmnd++; } /* Rx Write Tx Read */ diff --git a/drivers/scsi/bnx2fc/bnx2fc_io.c b/drivers/scsi/bnx2fc/bnx2fc_io.c index 962454f2e2b1..055d9424bc0d 100644 --- a/drivers/scsi/bnx2fc/bnx2fc_io.c +++ b/drivers/scsi/bnx2fc/bnx2fc_io.c @@ -658,10 +658,9 @@ int bnx2fc_init_mp_req(struct bnx2fc_cmd *io_req) return SUCCESS; } -static int bnx2fc_initiate_tmf(struct scsi_cmnd *sc_cmd, u8 tm_flags) +static int bnx2fc_initiate_tmf(struct fc_lport *lport, struct fc_rport *rport, + u64 tm_lun, u8 tm_flags) { - struct fc_lport *lport; - struct fc_rport *rport; struct fc_rport_libfc_priv *rp; struct fcoe_port *port; struct bnx2fc_interface *interface; @@ -670,7 +669,6 @@ static int bnx2fc_initiate_tmf(struct scsi_cmnd *sc_cmd, u8 tm_flags) struct bnx2fc_mp_req *tm_req; struct fcoe_task_ctx_entry *task; struct fcoe_task_ctx_entry *task_page; - struct Scsi_Host *host = sc_cmd->device->host; struct fc_frame_header *fc_hdr; struct fcp_cmnd *fcp_cmnd; int task_idx, index; @@ -679,8 +677,6 @@ static int bnx2fc_initiate_tmf(struct scsi_cmnd *sc_cmd, u8 tm_flags) u32 sid, did; unsigned long start = jiffies; - lport = shost_priv(host); - rport = starget_to_rport(scsi_target(sc_cmd->device)); port = lport_priv(lport); interface = port->priv; @@ -691,7 +687,7 @@ static int bnx2fc_initiate_tmf(struct scsi_cmnd *sc_cmd, u8 tm_flags) } rp = rport->dd_data; - rc = fc_block_scsi_eh(sc_cmd); + rc = fc_block_rport(rport); if (rc) return rc; @@ -720,7 +716,7 @@ static int bnx2fc_initiate_tmf(struct scsi_cmnd *sc_cmd, u8 tm_flags) goto retry_tmf; } /* Initialize rest of io_req fields */ - io_req->sc_cmd = sc_cmd; + io_req->sc_cmd = NULL; io_req->port = port; io_req->tgt = tgt; @@ -738,11 +734,13 @@ static int bnx2fc_initiate_tmf(struct scsi_cmnd *sc_cmd, u8 tm_flags) /* Set TM flags */ io_req->io_req_flags = 0; tm_req->tm_flags = tm_flags; + tm_req->tm_lun = tm_lun; /* Fill FCP_CMND */ bnx2fc_build_fcp_cmnd(io_req, (struct fcp_cmnd *)tm_req->req_buf); fcp_cmnd = (struct fcp_cmnd *)tm_req->req_buf; - memset(fcp_cmnd->fc_cdb, 0, sc_cmd->cmd_len); + int_to_scsilun(tm_lun, &fcp_cmnd->fc_lun); + memset(fcp_cmnd->fc_cdb, 0, BNX2FC_MAX_CMD_LEN); fcp_cmnd->fc_dl = 0; /* Fill FC header */ @@ -765,8 +763,6 @@ static int bnx2fc_initiate_tmf(struct scsi_cmnd *sc_cmd, u8 tm_flags) task = &(task_page[index]); bnx2fc_init_mp_task(io_req, task); - bnx2fc_priv(sc_cmd)->io_req = io_req; - /* Obtain free SQ entry */ spin_lock_bh(&tgt->tgt_lock); bnx2fc_add_2_sq(tgt, xid); @@ -1064,7 +1060,10 @@ int bnx2fc_initiate_cleanup(struct bnx2fc_cmd *io_req) */ int bnx2fc_eh_target_reset(struct scsi_cmnd *sc_cmd) { - return bnx2fc_initiate_tmf(sc_cmd, FCP_TMF_TGT_RESET); + struct fc_rport *rport = starget_to_rport(scsi_target(sc_cmd->device)); + struct fc_lport *lport = shost_priv(rport_to_shost(rport)); + + return bnx2fc_initiate_tmf(lport, rport, 0, FCP_TMF_TGT_RESET); } /** @@ -1077,7 +1076,11 @@ int bnx2fc_eh_target_reset(struct scsi_cmnd *sc_cmd) */ int bnx2fc_eh_device_reset(struct scsi_cmnd *sc_cmd) { - return bnx2fc_initiate_tmf(sc_cmd, FCP_TMF_LUN_RESET); + struct fc_rport *rport = starget_to_rport(scsi_target(sc_cmd->device)); + struct fc_lport *lport = shost_priv(rport_to_shost(rport)); + + return bnx2fc_initiate_tmf(lport, rport, sc_cmd->device->lun, + FCP_TMF_LUN_RESET); } static int bnx2fc_abts_cleanup(struct bnx2fc_cmd *io_req) @@ -1452,10 +1455,9 @@ void bnx2fc_process_abts_compl(struct bnx2fc_cmd *io_req, static void bnx2fc_lun_reset_cmpl(struct bnx2fc_cmd *io_req) { - struct scsi_cmnd *sc_cmd = io_req->sc_cmd; struct bnx2fc_rport *tgt = io_req->tgt; struct bnx2fc_cmd *cmd, *tmp; - u64 tm_lun = sc_cmd->device->lun; + struct bnx2fc_mp_req *tm_req = &io_req->mp_req; u64 lun; int rc = 0; @@ -1467,8 +1469,10 @@ static void bnx2fc_lun_reset_cmpl(struct bnx2fc_cmd *io_req) */ list_for_each_entry_safe(cmd, tmp, &tgt->active_cmd_queue, link) { BNX2FC_TGT_DBG(tgt, "LUN RST cmpl: scan for pending IOs\n"); + if (!cmd->sc_cmd) + continue; lun = cmd->sc_cmd->device->lun; - if (lun == tm_lun) { + if (lun == tm_req->tm_lun) { /* Initiate ABTS on this cmd */ if (!test_and_set_bit(BNX2FC_FLAG_ISSUE_ABTS, &cmd->req_flags)) { @@ -1572,31 +1576,36 @@ void bnx2fc_process_tm_compl(struct bnx2fc_cmd *io_req, printk(KERN_ERR PFX "tmf's fc_hdr r_ctl = 0x%x\n", fc_hdr->fh_r_ctl); } - if (!bnx2fc_priv(sc_cmd)->io_req) { - printk(KERN_ERR PFX "tm_compl: io_req is NULL\n"); - return; - } - switch (io_req->fcp_status) { - case FC_GOOD: - if (io_req->cdb_status == 0) { - /* Good IO completion */ - sc_cmd->result = DID_OK << 16; - } else { - /* Transport status is good, SCSI status not good */ - sc_cmd->result = (DID_OK << 16) | io_req->cdb_status; + if (sc_cmd) { + if (!bnx2fc_priv(sc_cmd)->io_req) { + printk(KERN_ERR PFX "tm_compl: io_req is NULL\n"); + return; + } + switch (io_req->fcp_status) { + case FC_GOOD: + if (io_req->cdb_status == 0) { + /* Good IO completion */ + sc_cmd->result = DID_OK << 16; + } else { + /* Transport status is good, SCSI status not good */ + sc_cmd->result = (DID_OK << 16) | io_req->cdb_status; + } + if (io_req->fcp_resid) + scsi_set_resid(sc_cmd, io_req->fcp_resid); + break; + + default: + BNX2FC_IO_DBG(io_req, "process_tm_compl: fcp_status = %d\n", + io_req->fcp_status); + break; } - if (io_req->fcp_resid) - scsi_set_resid(sc_cmd, io_req->fcp_resid); - break; - default: - BNX2FC_IO_DBG(io_req, "process_tm_compl: fcp_status = %d\n", - io_req->fcp_status); - break; - } + sc_cmd = io_req->sc_cmd; + io_req->sc_cmd = NULL; - sc_cmd = io_req->sc_cmd; - io_req->sc_cmd = NULL; + bnx2fc_priv(sc_cmd)->io_req = NULL; + scsi_done(sc_cmd); + } /* check if the io_req exists in tgt's tmf_q */ if (io_req->on_tmf_queue) { @@ -1609,9 +1618,6 @@ void bnx2fc_process_tm_compl(struct bnx2fc_cmd *io_req, return; } - bnx2fc_priv(sc_cmd)->io_req = NULL; - scsi_done(sc_cmd); - kref_put(&io_req->refcount, bnx2fc_cmd_release); if (io_req->wait_for_abts_comp) { BNX2FC_IO_DBG(io_req, "tm_compl - wake up the waiter\n"); @@ -1740,15 +1746,9 @@ static void bnx2fc_unmap_sg_list(struct bnx2fc_cmd *io_req) void bnx2fc_build_fcp_cmnd(struct bnx2fc_cmd *io_req, struct fcp_cmnd *fcp_cmnd) { - struct scsi_cmnd *sc_cmd = io_req->sc_cmd; - memset(fcp_cmnd, 0, sizeof(struct fcp_cmnd)); - int_to_scsilun(sc_cmd->device->lun, &fcp_cmnd->fc_lun); - fcp_cmnd->fc_dl = htonl(io_req->data_xfer_len); - memcpy(fcp_cmnd->fc_cdb, sc_cmd->cmnd, sc_cmd->cmd_len); - fcp_cmnd->fc_cmdref = 0; fcp_cmnd->fc_pri_ta = 0; fcp_cmnd->fc_tm_flags = io_req->mp_req.tm_flags; From patchwork Tue May 3 20:06:49 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Hannes Reinecke X-Patchwork-Id: 12836189 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 3E7F2C433EF for ; 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bh=FDzwj623m4ERVeuC9SXdcTfFCidDKGHCEKdBxQiSFiI=; b=Uw3xQ7XzYHYoFei3jC5nXqDB906TcoDVItOGjvorQbBRr3M03+ihpUDnjcdwBGs4FBTopQ X/ZZtEfNuvWXtEzQ9WLW7VJHUXqRPpe017b0E0y44UKrfuoUKEVYWfYzk1HHH9XRYIvnM8 Xp5uWyfS4NlQb8xU/sWGoJO81AxX5N0= DKIM-Signature: v=1; a=ed25519-sha256; c=relaxed/relaxed; d=suse.de; s=susede2_ed25519; t=1651608435; 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=FDzwj623m4ERVeuC9SXdcTfFCidDKGHCEKdBxQiSFiI=; b=ds2489h91ndJYS4UUKi2P+XONHEhf+M5fiSEQ4kWnq6bgObgyvRjYtCNtX8Frdy1PI2fzA S5QREX7ewGEoCSCw== Received: from adalid.arch.suse.de (adalid.arch.suse.de [10.161.8.13]) by relay2.suse.de (Postfix) with ESMTP id 0EF0E2C15B; Tue, 3 May 2022 20:07:15 +0000 (UTC) Received: by adalid.arch.suse.de (Postfix, from userid 16045) id 1DEE651941D8; Tue, 3 May 2022 22:07:15 +0200 (CEST) From: Hannes Reinecke To: "Martin K. Petersen" Cc: Christoph Hellwig , James Bottomley , linux-scsi@vger.kernel.org, Hannes Reinecke , Tyrel Datwyler Subject: [PATCH 09/24] ibmvfc: open-code reset loop for target reset Date: Tue, 3 May 2022 22:06:49 +0200 Message-Id: <20220503200704.88003-10-hare@suse.de> X-Mailer: git-send-email 2.29.2 In-Reply-To: <20220503200704.88003-1-hare@suse.de> References: <20220503200704.88003-1-hare@suse.de> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-scsi@vger.kernel.org For target reset we need a device to send the target reset to, so open-code the loop in target reset to send the target reset TMF to the correct device. Signed-off-by: Hannes Reinecke Reviewed-by: Christoph Hellwig Cc: Tyrel Datwyler --- drivers/scsi/ibmvscsi/ibmvfc.c | 42 +++++++++++++++++++--------------- 1 file changed, 23 insertions(+), 19 deletions(-) diff --git a/drivers/scsi/ibmvscsi/ibmvfc.c b/drivers/scsi/ibmvscsi/ibmvfc.c index d0eab5700dc5..721d965f4b0e 100644 --- a/drivers/scsi/ibmvscsi/ibmvfc.c +++ b/drivers/scsi/ibmvscsi/ibmvfc.c @@ -2925,18 +2925,6 @@ static void ibmvfc_dev_cancel_all_noreset(struct scsi_device *sdev, void *data) *rc |= ibmvfc_cancel_all(sdev, IBMVFC_TMF_SUPPRESS_ABTS); } -/** - * ibmvfc_dev_cancel_all_reset - Device iterated cancel all function - * @sdev: scsi device struct - * @data: return code - * - **/ -static void ibmvfc_dev_cancel_all_reset(struct scsi_device *sdev, void *data) -{ - unsigned long *rc = data; - *rc |= ibmvfc_cancel_all(sdev, IBMVFC_TMF_TGT_RESET); -} - /** * ibmvfc_eh_target_reset_handler - Reset the target * @cmd: scsi command struct @@ -2946,22 +2934,38 @@ static void ibmvfc_dev_cancel_all_reset(struct scsi_device *sdev, void *data) **/ static int ibmvfc_eh_target_reset_handler(struct scsi_cmnd *cmd) { - struct scsi_device *sdev = cmd->device; - struct ibmvfc_host *vhost = shost_priv(sdev->host); - struct scsi_target *starget = scsi_target(sdev); + struct scsi_target *starget = scsi_target(cmd->device); + struct fc_rport *rport = starget_to_rport(starget); + struct Scsi_Host *shost = rport_to_shost(rport); + struct ibmvfc_host *vhost = shost_priv(shost); int block_rc; int reset_rc = 0; int rc = FAILED; unsigned long cancel_rc = 0; + bool tgt_reset = false; ENTER; - block_rc = fc_block_scsi_eh(cmd); + block_rc = fc_block_rport(rport); ibmvfc_wait_while_resetting(vhost); if (block_rc != FAST_IO_FAIL) { - starget_for_each_device(starget, &cancel_rc, ibmvfc_dev_cancel_all_reset); - reset_rc = ibmvfc_reset_device(sdev, IBMVFC_TARGET_RESET, "target"); + struct scsi_device *sdev; + + shost_for_each_device(sdev, shost) { + if ((sdev->channel != starget->channel) || + (sdev->id != starget->id)) + continue; + + cancel_rc |= ibmvfc_cancel_all(sdev, + IBMVFC_TMF_TGT_RESET); + if (!tgt_reset) { + reset_rc = ibmvfc_reset_device(sdev, + IBMVFC_TARGET_RESET, "target"); + tgt_reset = true; + } + } } else - starget_for_each_device(starget, &cancel_rc, ibmvfc_dev_cancel_all_noreset); + starget_for_each_device(starget, &cancel_rc, + ibmvfc_dev_cancel_all_noreset); if (!cancel_rc && !reset_rc) rc = ibmvfc_wait_for_ops(vhost, starget, ibmvfc_match_target); From patchwork Tue May 3 20:06:50 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Hannes Reinecke X-Patchwork-Id: 12836191 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 4D627C433EF for ; Tue, 3 May 2022 20:07:40 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S236170AbiECULL (ORCPT ); Tue, 3 May 2022 16:11:11 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:45618 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S237796AbiECUKx (ORCPT ); Tue, 3 May 2022 16:10:53 -0400 Received: from smtp-out1.suse.de (smtp-out1.suse.de [195.135.220.28]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id AB83F27143 for ; Tue, 3 May 2022 13:07:19 -0700 (PDT) Received: from relay2.suse.de (relay2.suse.de [149.44.160.134]) by smtp-out1.suse.de (Postfix) with ESMTP id 3263A21877; Tue, 3 May 2022 20:07:15 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=suse.de; s=susede2_rsa; t=1651608435; 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=q9UB9kJ6U1pVAk42Xta6NNAD1V/34OuqVF/7U7UCYBo=; b=rnmmuXTgTYE+zzyBZJz5p1JxVQVhm6zr++DTC0HkJoMK4RHHgXqB/de1u72F3AUhjQT+Ye xf7h60SUtw2QZgaNjQn068hoBPlz+YHLMO4l21VBDaDmU+61pysPuClaLB9qjyGcdzkGOC 88Zk8k0ee7SmFrfCA9wkyb/4KxRAnt0= DKIM-Signature: v=1; a=ed25519-sha256; c=relaxed/relaxed; d=suse.de; s=susede2_ed25519; t=1651608435; 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=q9UB9kJ6U1pVAk42Xta6NNAD1V/34OuqVF/7U7UCYBo=; b=XgIgZnxRoVO05WvWWFjI2P75wtjUfPxS4FCnlEkpBkWaQN9Z/29dHqXT2RlIa08BpC+Qyk E8g58/wqMZN52rAg== Received: from adalid.arch.suse.de (adalid.arch.suse.de [10.161.8.13]) by relay2.suse.de (Postfix) with ESMTP id 125212C15D; Tue, 3 May 2022 20:07:15 +0000 (UTC) Received: by adalid.arch.suse.de (Postfix, from userid 16045) id 2133F51941DA; Tue, 3 May 2022 22:07:15 +0200 (CEST) From: Hannes Reinecke To: "Martin K. Petersen" Cc: Christoph Hellwig , James Bottomley , linux-scsi@vger.kernel.org, Hannes Reinecke , Bart Van Assche Subject: [PATCH 10/24] ibmvfc: use fc_block_rport() Date: Tue, 3 May 2022 22:06:50 +0200 Message-Id: <20220503200704.88003-11-hare@suse.de> X-Mailer: git-send-email 2.29.2 In-Reply-To: <20220503200704.88003-1-hare@suse.de> References: <20220503200704.88003-1-hare@suse.de> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-scsi@vger.kernel.org Use fc_block_rport() instead of fc_block_scsi_eh() as the latter will be deprecated. Signed-off-by: Hannes Reinecke Reviewed-by: Christoph Hellwig Reviewed-by: Bart Van Assche --- drivers/scsi/ibmvscsi/ibmvfc.c | 6 ++++-- 1 file changed, 4 insertions(+), 2 deletions(-) diff --git a/drivers/scsi/ibmvscsi/ibmvfc.c b/drivers/scsi/ibmvscsi/ibmvfc.c index 721d965f4b0e..2e7128f0d905 100644 --- a/drivers/scsi/ibmvscsi/ibmvfc.c +++ b/drivers/scsi/ibmvscsi/ibmvfc.c @@ -2857,12 +2857,13 @@ static int ibmvfc_abort_task_set(struct scsi_device *sdev) static int ibmvfc_eh_abort_handler(struct scsi_cmnd *cmd) { struct scsi_device *sdev = cmd->device; + struct fc_rport *rport = starget_to_rport(scsi_target(sdev)); struct ibmvfc_host *vhost = shost_priv(sdev->host); int cancel_rc, block_rc; int rc = FAILED; ENTER; - block_rc = fc_block_scsi_eh(cmd); + block_rc = fc_block_rport(rport); ibmvfc_wait_while_resetting(vhost); if (block_rc != FAST_IO_FAIL) { cancel_rc = ibmvfc_cancel_all(sdev, IBMVFC_TMF_ABORT_TASK_SET); @@ -2890,12 +2891,13 @@ static int ibmvfc_eh_abort_handler(struct scsi_cmnd *cmd) static int ibmvfc_eh_device_reset_handler(struct scsi_cmnd *cmd) { struct scsi_device *sdev = cmd->device; + struct fc_rport *rport = starget_to_rport(scsi_target(sdev)); struct ibmvfc_host *vhost = shost_priv(sdev->host); int cancel_rc, block_rc, reset_rc = 0; int rc = FAILED; ENTER; - block_rc = fc_block_scsi_eh(cmd); + block_rc = fc_block_rport(rport); ibmvfc_wait_while_resetting(vhost); if (block_rc != FAST_IO_FAIL) { cancel_rc = ibmvfc_cancel_all(sdev, IBMVFC_TMF_LUN_RESET); From patchwork Tue May 3 20:06:51 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Hannes Reinecke X-Patchwork-Id: 12836195 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 5628AC433F5 for ; Tue, 3 May 2022 20:07:46 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S235353AbiECULR (ORCPT ); Tue, 3 May 2022 16:11:17 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:45634 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S237907AbiECUKx (ORCPT ); Tue, 3 May 2022 16:10:53 -0400 Received: from smtp-out1.suse.de (smtp-out1.suse.de [195.135.220.28]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id ABDE927148 for ; Tue, 3 May 2022 13:07:19 -0700 (PDT) Received: from relay2.suse.de (relay2.suse.de [149.44.160.134]) by smtp-out1.suse.de (Postfix) with ESMTP id 2D1A621872; Tue, 3 May 2022 20:07:15 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=suse.de; s=susede2_rsa; t=1651608435; 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=BDD4KCm0GTGWtoRO5uo4nuePlYqYLTqmBvQyk1nWg/I=; b=PUlYewUGo3NeXJeYxLoSJ1wGSC46OZ4GFmtaHK9BRkNv+RMzWEcHk0mWw0MTxMyp3f9RTb 7SE7mAdAUgykwOnNySYmavWwMRRlCm6PH959zSngQssBU8HoyQF29HS99CIz8ZT3znd9hG vAX2gTz6v3inEgk6sdu2cFxV+xdr2sM= DKIM-Signature: v=1; a=ed25519-sha256; c=relaxed/relaxed; d=suse.de; s=susede2_ed25519; t=1651608435; 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=BDD4KCm0GTGWtoRO5uo4nuePlYqYLTqmBvQyk1nWg/I=; b=mRpK7FD+EjETckf+Wz9YBbpfhVgxtpXykDpVRLlyrU2xJHVDenCtAD7uKTT/IJpKjedJB0 xvZSAcDpZKRVEqBQ== Received: from adalid.arch.suse.de (adalid.arch.suse.de [10.161.8.13]) by relay2.suse.de (Postfix) with ESMTP id 16BE52C15F; Tue, 3 May 2022 20:07:15 +0000 (UTC) Received: by adalid.arch.suse.de (Postfix, from userid 16045) id 26FBE51941DC; Tue, 3 May 2022 22:07:15 +0200 (CEST) From: Hannes Reinecke To: "Martin K. Petersen" Cc: Christoph Hellwig , James Bottomley , linux-scsi@vger.kernel.org, Hannes Reinecke Subject: [PATCH 11/24] fnic: use dedicated device reset command Date: Tue, 3 May 2022 22:06:51 +0200 Message-Id: <20220503200704.88003-12-hare@suse.de> X-Mailer: git-send-email 2.29.2 In-Reply-To: <20220503200704.88003-1-hare@suse.de> References: <20220503200704.88003-1-hare@suse.de> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-scsi@vger.kernel.org Use a dedicated command to send a device reset instead of relying on using the command which triggered the device failure. Signed-off-by: Hannes Reinecke Reviewed-by: Christoph Hellwig --- drivers/scsi/fnic/fnic_scsi.c | 132 ++++++++++------------------------ 1 file changed, 37 insertions(+), 95 deletions(-) diff --git a/drivers/scsi/fnic/fnic_scsi.c b/drivers/scsi/fnic/fnic_scsi.c index 3d64877bda8d..4f72fac583b7 100644 --- a/drivers/scsi/fnic/fnic_scsi.c +++ b/drivers/scsi/fnic/fnic_scsi.c @@ -1998,7 +1998,6 @@ static inline int fnic_queue_dr_io_req(struct fnic *fnic, struct fnic_pending_aborts_iter_data { struct fnic *fnic; - struct scsi_cmnd *lr_sc; struct scsi_device *lun_dev; int ret; }; @@ -2017,7 +2016,7 @@ static bool fnic_pending_aborts_iter(struct scsi_cmnd *sc, DECLARE_COMPLETION_ONSTACK(tm_done); enum fnic_ioreq_state old_ioreq_state; - if (sc == iter_data->lr_sc || sc->device != lun_dev) + if (abt_tag == (fnic->fnic_max_tag_id - 1) || sc->device != lun_dev) return true; if (reserved) return true; @@ -2122,17 +2121,11 @@ static bool fnic_pending_aborts_iter(struct scsi_cmnd *sc, return false; } fnic_priv(sc)->state = FNIC_IOREQ_ABTS_COMPLETE; - - /* original sc used for lr is handled by dev reset code */ - if (sc != iter_data->lr_sc) - fnic_priv(sc)->io_req = NULL; + fnic_priv(sc)->io_req = NULL; spin_unlock_irqrestore(io_lock, flags); - /* original sc used for lr is handled by dev reset code */ - if (sc != iter_data->lr_sc) { - fnic_release_ioreq_buf(fnic, io_req, sc); - mempool_free(io_req, fnic->io_req_pool); - } + fnic_release_ioreq_buf(fnic, io_req, sc); + mempool_free(io_req, fnic->io_req_pool); /* * Any IO is returned during reset, it needs to call scsi_done @@ -2152,8 +2145,7 @@ static bool fnic_pending_aborts_iter(struct scsi_cmnd *sc, * successfully aborted, 1 otherwise */ static int fnic_clean_pending_aborts(struct fnic *fnic, - struct scsi_cmnd *lr_sc, - bool new_sc) + struct scsi_cmnd *lr_sc) { int ret = SUCCESS; @@ -2163,9 +2155,6 @@ static int fnic_clean_pending_aborts(struct fnic *fnic, .ret = SUCCESS, }; - if (new_sc) - iter_data.lr_sc = lr_sc; - scsi_host_busy_iter(fnic->lport->host, fnic_pending_aborts_iter, &iter_data); if (iter_data.ret == FAILED) { @@ -2182,39 +2171,6 @@ static int fnic_clean_pending_aborts(struct fnic *fnic, return ret; } -/* - * fnic_scsi_host_start_tag - * Allocates tagid from host's tag list - **/ -static inline int -fnic_scsi_host_start_tag(struct fnic *fnic, struct scsi_cmnd *sc) -{ - struct request *rq = scsi_cmd_to_rq(sc); - struct request_queue *q = rq->q; - struct request *dummy; - - dummy = blk_mq_alloc_request(q, REQ_OP_WRITE, BLK_MQ_REQ_NOWAIT); - if (IS_ERR(dummy)) - return SCSI_NO_TAG; - - rq->tag = dummy->tag; - sc->host_scribble = (unsigned char *)dummy; - - return dummy->tag; -} - -/* - * fnic_scsi_host_end_tag - * frees tag allocated by fnic_scsi_host_start_tag. - **/ -static inline void -fnic_scsi_host_end_tag(struct fnic *fnic, struct scsi_cmnd *sc) -{ - struct request *dummy = (struct request *)sc->host_scribble; - - blk_mq_free_request(dummy); -} - /* * SCSI Eh thread issues a Lun Reset when one or more commands on a LUN * fail to get aborted. It calls driver's eh_device_reset with a SCSI command @@ -2222,7 +2178,7 @@ fnic_scsi_host_end_tag(struct fnic *fnic, struct scsi_cmnd *sc) */ int fnic_device_reset(struct scsi_cmnd *sc) { - struct request *rq = scsi_cmd_to_rq(sc); + struct scsi_device *sdev = sc->device; struct fc_lport *lp; struct fnic *fnic; struct fnic_io_req *io_req = NULL; @@ -2235,16 +2191,17 @@ int fnic_device_reset(struct scsi_cmnd *sc) struct scsi_lun fc_lun; struct fnic_stats *fnic_stats; struct reset_stats *reset_stats; - int tag = rq->tag; + int tag; DECLARE_COMPLETION_ONSTACK(tm_done); - int tag_gen_flag = 0; /*to track tags allocated by fnic driver*/ - bool new_sc = 0; /* Wait for rport to unblock */ - fc_block_scsi_eh(sc); + rport = starget_to_rport(scsi_target(sdev)); + ret = fc_block_rport(rport); + if (ret) + return ret; /* Get local-port, check ready and link up */ - lp = shost_priv(sc->device->host); + lp = shost_priv(sdev->host); fnic = lport_priv(lp); fnic_stats = &fnic->fnic_stats; @@ -2252,10 +2209,9 @@ int fnic_device_reset(struct scsi_cmnd *sc) atomic64_inc(&reset_stats->device_resets); - rport = starget_to_rport(scsi_target(sc->device)); FNIC_SCSI_DBG(KERN_DEBUG, fnic->lport->host, - "Device reset called FCID 0x%x, LUN 0x%llx sc 0x%p\n", - rport->port_id, sc->device->lun, sc); + "Device reset called FCID 0x%x, LUN 0x%llx\n", + rport->port_id, sdev->lun); if (lp->state != LPORT_ST_READY || !(lp->link_up)) goto fnic_device_reset_end; @@ -2266,39 +2222,29 @@ int fnic_device_reset(struct scsi_cmnd *sc) goto fnic_device_reset_end; } - fnic_priv(sc)->flags = FNIC_DEVICE_RESET; - /* Allocate tag if not present */ + /* The last tag is reserved for device reset */ + sc = scsi_host_find_tag(sdev->host, fnic->fnic_max_tag_id - 1); + if (unlikely(!sc)) + goto fnic_device_reset_end; - if (unlikely(tag < 0)) { - /* - * Really should fix the midlayer to pass in a proper - * request for ioctls... - */ - tag = fnic_scsi_host_start_tag(fnic, sc); - if (unlikely(tag == SCSI_NO_TAG)) - goto fnic_device_reset_end; - tag_gen_flag = 1; - new_sc = 1; - } + tag = scsi_cmd_to_rq(sc)->tag; io_lock = fnic_io_lock_hash(fnic, sc); spin_lock_irqsave(io_lock, flags); io_req = fnic_priv(sc)->io_req; + if (io_req) + goto fnic_device_reset_end; - /* - * If there is a io_req attached to this command, then use it, - * else allocate a new one. - */ + io_req = mempool_alloc(fnic->io_req_pool, GFP_ATOMIC); if (!io_req) { - io_req = mempool_alloc(fnic->io_req_pool, GFP_ATOMIC); - if (!io_req) { - spin_unlock_irqrestore(io_lock, flags); - goto fnic_device_reset_end; - } - memset(io_req, 0, sizeof(*io_req)); - io_req->port_id = rport->port_id; - fnic_priv(sc)->io_req = io_req; + spin_unlock_irqrestore(io_lock, flags); + goto fnic_device_reset_end; } + memset(io_req, 0, sizeof(*io_req)); + io_req->port_id = rport->port_id; + fnic_priv(sc)->io_req = io_req; + io_req->dr_done = &tm_done; + fnic_priv(sc)->flags = FNIC_DEVICE_RESET; fnic_priv(sc)->state = FNIC_IOREQ_CMD_PENDING; fnic_priv(sc)->lr_status = FCPIO_INVALID_CODE; spin_unlock_irqrestore(io_lock, flags); @@ -2332,7 +2278,7 @@ int fnic_device_reset(struct scsi_cmnd *sc) if (!io_req) { spin_unlock_irqrestore(io_lock, flags); FNIC_SCSI_DBG(KERN_DEBUG, fnic->lport->host, - "io_req is null tag 0x%x sc 0x%p\n", tag, sc); + "io_req is null tag 0x%x\n", tag); goto fnic_device_reset_end; } io_req->dr_done = NULL; @@ -2375,7 +2321,7 @@ int fnic_device_reset(struct scsi_cmnd *sc) spin_unlock_irqrestore(io_lock, flags); FNIC_SCSI_DBG(KERN_DEBUG, fnic->lport->host, "Abort and terminate issued on Device reset " - "tag 0x%x sc 0x%p\n", tag, sc); + "tag 0x%x\n", tag); break; } } @@ -2413,7 +2359,7 @@ int fnic_device_reset(struct scsi_cmnd *sc) * the lun reset cmd. If all cmds get cleaned, the lun reset * succeeds */ - if (fnic_clean_pending_aborts(fnic, sc, new_sc)) { + if (fnic_clean_pending_aborts(fnic, sc)) { spin_lock_irqsave(io_lock, flags); io_req = fnic_priv(sc)->io_req; FNIC_SCSI_DBG(KERN_DEBUG, fnic->lport->host, @@ -2442,17 +2388,14 @@ int fnic_device_reset(struct scsi_cmnd *sc) } fnic_device_reset_end: - FNIC_TRACE(fnic_device_reset, sc->device->host->host_no, rq->tag, sc, + FNIC_TRACE(fnic_device_reset, sc->device->host->host_no, + scsi_cmd_to_rq(sc)->tag, sc, jiffies_to_msecs(jiffies - start_time), 0, ((u64)sc->cmnd[0] << 32 | (u64)sc->cmnd[2] << 24 | (u64)sc->cmnd[3] << 16 | (u64)sc->cmnd[4] << 8 | sc->cmnd[5]), fnic_flags_and_state(sc)); - /* free tag if it is allocated */ - if (unlikely(tag_gen_flag)) - fnic_scsi_host_end_tag(fnic, sc); - FNIC_SCSI_DBG(KERN_DEBUG, fnic->lport->host, "Returning from device reset %s\n", (ret == SUCCESS) ? @@ -2675,6 +2618,7 @@ static bool fnic_abts_pending_iter(struct scsi_cmnd *sc, void *data, { struct fnic_pending_aborts_iter_data *iter_data = data; struct fnic *fnic = iter_data->fnic; + int tag = scsi_cmd_to_rq(sc)->tag; int cmd_state; struct fnic_io_req *io_req; spinlock_t *io_lock; @@ -2684,7 +2628,7 @@ static bool fnic_abts_pending_iter(struct scsi_cmnd *sc, void *data, * ignore this lun reset cmd or cmds that do not belong to * this lun */ - if (iter_data->lr_sc && sc == iter_data->lr_sc) + if (tag == (fnic->fnic_max_tag_id - 1)) return true; if (iter_data->lun_dev && sc->device != iter_data->lun_dev) return true; @@ -2728,10 +2672,8 @@ int fnic_is_abts_pending(struct fnic *fnic, struct scsi_cmnd *lr_sc) .ret = 0, }; - if (lr_sc) { + if (lr_sc) iter_data.lun_dev = lr_sc->device; - iter_data.lr_sc = lr_sc; - } /* walk again to check, if IOs are still pending in fw */ scsi_host_busy_iter(fnic->lport->host, From patchwork Tue May 3 20:06:52 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Hannes Reinecke X-Patchwork-Id: 12836192 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 594B0C433F5 for ; Tue, 3 May 2022 20:07:41 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S240128AbiECULM (ORCPT ); Tue, 3 May 2022 16:11:12 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:45612 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S237775AbiECUKx (ORCPT ); Tue, 3 May 2022 16:10:53 -0400 Received: from smtp-out1.suse.de (smtp-out1.suse.de [195.135.220.28]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id AB6EA26AEB for ; Tue, 3 May 2022 13:07:19 -0700 (PDT) Received: from relay2.suse.de (relay2.suse.de [149.44.160.134]) by smtp-out1.suse.de (Postfix) with ESMTP id 31EFB21875; Tue, 3 May 2022 20:07:15 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=suse.de; s=susede2_rsa; t=1651608435; 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=U8+smaTryB5o6YvC63tmMj1TeWOC8HivAq0CyNDM8j8=; b=2YXMPCefklHrW9+NdbmjrHTcyO49S1U2eiB1OP0lll7IfJHK7ul5RlC+KK8bgid3UhrLBE qWYIPN1RAuDWzgSPUybqunkcTrjXEeHPTIE6gyiXXCBvkGDvDvo33YBtlbMgDgUriglWMM tOdOui6JoYeWCnSUc8Xz7jnA25Zw+o0= DKIM-Signature: v=1; a=ed25519-sha256; c=relaxed/relaxed; d=suse.de; s=susede2_ed25519; t=1651608435; 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=U8+smaTryB5o6YvC63tmMj1TeWOC8HivAq0CyNDM8j8=; b=UlXQh9VWPbKfNgaHFY+TSgOFxJ22Xp9/8qp+rvq+VWaN93wZ8Gg9fzQchQBTQ2z4f8T21Q gQYe060ZbnXCa6BA== Received: from adalid.arch.suse.de (adalid.arch.suse.de [10.161.8.13]) by relay2.suse.de (Postfix) with ESMTP id 1A9E42C141; Tue, 3 May 2022 20:07:15 +0000 (UTC) Received: by adalid.arch.suse.de (Postfix, from userid 16045) id 2B30151941DE; Tue, 3 May 2022 22:07:15 +0200 (CEST) From: Hannes Reinecke To: "Martin K. Petersen" Cc: Christoph Hellwig , James Bottomley , linux-scsi@vger.kernel.org, Hannes Reinecke Subject: [PATCH 12/24] fnic: use fc_block_rport() correctly Date: Tue, 3 May 2022 22:06:52 +0200 Message-Id: <20220503200704.88003-13-hare@suse.de> X-Mailer: git-send-email 2.29.2 In-Reply-To: <20220503200704.88003-1-hare@suse.de> References: <20220503200704.88003-1-hare@suse.de> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-scsi@vger.kernel.org Use fc_block_rport() instead of fc_block_scsi_eh() and evaluate the return value to avoid issuing TMF commands when the port is still blocked. Signed-off-by: Hannes Reinecke Reviewed-by: Christoph Hellwig --- drivers/scsi/fnic/fnic_scsi.c | 7 ++++--- 1 file changed, 4 insertions(+), 3 deletions(-) diff --git a/drivers/scsi/fnic/fnic_scsi.c b/drivers/scsi/fnic/fnic_scsi.c index 4f72fac583b7..155662b13c83 100644 --- a/drivers/scsi/fnic/fnic_scsi.c +++ b/drivers/scsi/fnic/fnic_scsi.c @@ -1733,9 +1733,6 @@ int fnic_abort_cmd(struct scsi_cmnd *sc) unsigned long abt_issued_time; DECLARE_COMPLETION_ONSTACK(tm_done); - /* Wait for rport to unblock */ - fc_block_scsi_eh(sc); - /* Get local-port, check ready and link up */ lp = shost_priv(sc->device->host); @@ -1745,6 +1742,10 @@ int fnic_abort_cmd(struct scsi_cmnd *sc) term_stats = &fnic->fnic_stats.term_stats; rport = starget_to_rport(scsi_target(sc->device)); + ret = fc_block_rport(rport); + if (ret) + return ret; + FNIC_SCSI_DBG(KERN_DEBUG, fnic->lport->host, "Abort Cmd called FCID 0x%x, LUN 0x%llx TAG %x flags %x\n", From patchwork Tue May 3 20:06:53 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Hannes Reinecke X-Patchwork-Id: 12836194 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 37BBDC433EF for ; Tue, 3 May 2022 20:07:45 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S242175AbiECULQ (ORCPT ); Tue, 3 May 2022 16:11:16 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:45552 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S237899AbiECUKx (ORCPT ); Tue, 3 May 2022 16:10:53 -0400 Received: from smtp-out1.suse.de (smtp-out1.suse.de [195.135.220.28]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 4FEFA3FBE9 for ; Tue, 3 May 2022 13:07:20 -0700 (PDT) Received: from relay2.suse.de (relay2.suse.de [149.44.160.134]) by smtp-out1.suse.de (Postfix) with ESMTP id 3B3D021878; Tue, 3 May 2022 20:07:15 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=suse.de; s=susede2_rsa; t=1651608435; 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=9+DFd5tYEYUTELYptk0qKbNANlmdUVFUPdr/2BBo/uI=; b=SOBzM8NauxSCTBhR3INjbPVvCSAuxflsbKye2LhulPkrI74DVk0Yew7S++zH3l3JDKcdEQ zTLqOkOsO6J8vq/vxfkVFK+iuVmDp7iyxtiXEYGkYhFJ3O77VwnTCGONuvvp9MScdlWtiW ePMeoCwhAXtmz3Xc4hbel+GL/zJ+s1o= DKIM-Signature: v=1; a=ed25519-sha256; c=relaxed/relaxed; d=suse.de; s=susede2_ed25519; t=1651608435; 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=9+DFd5tYEYUTELYptk0qKbNANlmdUVFUPdr/2BBo/uI=; b=hjJV0t4SKD8YK6F0C3qVPZH2cmZfE1KuxYo2dW5ni7X5nJf49P3ULW9/JyAXCW4ZtH3nTr mGNuuobsSCR8KWBQ== Received: from adalid.arch.suse.de (adalid.arch.suse.de [10.161.8.13]) by relay2.suse.de (Postfix) with ESMTP id 21DEA2C162; Tue, 3 May 2022 20:07:15 +0000 (UTC) Received: by adalid.arch.suse.de (Postfix, from userid 16045) id 316F351941E0; Tue, 3 May 2022 22:07:15 +0200 (CEST) From: Hannes Reinecke To: "Martin K. Petersen" Cc: Christoph Hellwig , James Bottomley , linux-scsi@vger.kernel.org, Hannes Reinecke , kernel test robot Subject: [PATCH 13/24] aic7xxx: make BUILD_SCSIID() a function Date: Tue, 3 May 2022 22:06:53 +0200 Message-Id: <20220503200704.88003-14-hare@suse.de> X-Mailer: git-send-email 2.29.2 In-Reply-To: <20220503200704.88003-1-hare@suse.de> References: <20220503200704.88003-1-hare@suse.de> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-scsi@vger.kernel.org Convert BUILD_SCSIID() into a function and add a scsi_device argument. Reported-by: kernel test robot Signed-off-by: Hannes Reinecke --- drivers/scsi/aic7xxx/aic7xxx_osm.c | 19 +++++++++++++------ 1 file changed, 13 insertions(+), 6 deletions(-) diff --git a/drivers/scsi/aic7xxx/aic7xxx_osm.c b/drivers/scsi/aic7xxx/aic7xxx_osm.c index d3b1082654d5..05591650f89f 100644 --- a/drivers/scsi/aic7xxx/aic7xxx_osm.c +++ b/drivers/scsi/aic7xxx/aic7xxx_osm.c @@ -798,11 +798,18 @@ struct scsi_host_template aic7xxx_driver_template = { /**************************** Tasklet Handler *********************************/ -/******************************** Macros **************************************/ -#define BUILD_SCSIID(ahc, cmd) \ - ((((cmd)->device->id << TID_SHIFT) & TID) \ - | (((cmd)->device->channel == 0) ? (ahc)->our_id : (ahc)->our_id_b) \ - | (((cmd)->device->channel == 0) ? 0 : TWIN_CHNLB)) + +static inline unsigned int ahc_build_scsiid(struct ahc_softc *ahc, + struct scsi_device *sdev) +{ + unsigned int scsiid = (sdev->id << TID_SHIFT) & TID; + + if (sdev->channel == 0) + scsi_id |= ahc->our_id; + else + scsi_id |= ahc->our_id_b | TWIN_CHNLB; + return scsiid; +} /******************************** Bus DMA *************************************/ int @@ -1457,7 +1464,7 @@ ahc_linux_run_command(struct ahc_softc *ahc, struct ahc_linux_device *dev, * Fill out basics of the HSCB. */ hscb->control = 0; - hscb->scsiid = BUILD_SCSIID(ahc, cmd); + hscb->scsiid = ahc_build_scsiid(ahc, cmd->device); hscb->lun = cmd->device->lun; mask = SCB_GET_TARGET_MASK(ahc, scb); tinfo = ahc_fetch_transinfo(ahc, SCB_GET_CHANNEL(ahc, scb), From patchwork Tue May 3 20:06:54 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Hannes Reinecke X-Patchwork-Id: 12836193 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 04405C433F5 for ; Tue, 3 May 2022 20:07:44 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S242162AbiECULO (ORCPT ); Tue, 3 May 2022 16:11:14 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:45628 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S237813AbiECUKx (ORCPT ); Tue, 3 May 2022 16:10:53 -0400 Received: from smtp-out1.suse.de (smtp-out1.suse.de [195.135.220.28]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 501E53FDB0 for ; Tue, 3 May 2022 13:07:20 -0700 (PDT) Received: from relay2.suse.de (relay2.suse.de [149.44.160.134]) by smtp-out1.suse.de (Postfix) with ESMTP id 4105721879; Tue, 3 May 2022 20:07:15 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=suse.de; s=susede2_rsa; t=1651608435; 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=KIVHww1QrPw3j+a+9XqVsttYzI1B90AmbH5G8z3cipo=; b=0/oqmdkdrkdf9MgMiUczDYvuupQSFwkm0d4vundVbTrEMuLgVI28AnEPvoJx0GfbrWGM+g Of1kBoxj90DlnvkCdhtrhODR4GvCSaHxKMjYgA78LMsZ2gaZ0HzwucZP3SsAOQ1YnVS5uc ZJTbJxgd22WDVrEQ1SrQlHvoXNmt9z4= DKIM-Signature: v=1; a=ed25519-sha256; c=relaxed/relaxed; d=suse.de; s=susede2_ed25519; t=1651608435; 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=KIVHww1QrPw3j+a+9XqVsttYzI1B90AmbH5G8z3cipo=; b=PaMObSUa+vY1yL/5WltaDGFiJfvNwQZKDhwmAerkzBPKYOc/EZt9WJlJEkAC2x1lTYwFmv HopzcWTrijwX8aBg== Received: from adalid.arch.suse.de (adalid.arch.suse.de [10.161.8.13]) by relay2.suse.de (Postfix) with ESMTP id 27AE22C165; Tue, 3 May 2022 20:07:15 +0000 (UTC) Received: by adalid.arch.suse.de (Postfix, from userid 16045) id 36DFB51941E2; Tue, 3 May 2022 22:07:15 +0200 (CEST) From: Hannes Reinecke To: "Martin K. Petersen" Cc: Christoph Hellwig , James Bottomley , linux-scsi@vger.kernel.org, Hannes Reinecke Subject: [PATCH 14/24] aic79xx: make BUILD_SCSIID() a function Date: Tue, 3 May 2022 22:06:54 +0200 Message-Id: <20220503200704.88003-15-hare@suse.de> X-Mailer: git-send-email 2.29.2 In-Reply-To: <20220503200704.88003-1-hare@suse.de> References: <20220503200704.88003-1-hare@suse.de> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-scsi@vger.kernel.org Convert BUILD_SCSIID() into a function and add a scsi_device argument. Signed-off-by: Hannes Reinecke --- drivers/scsi/aic7xxx/aic79xx_osm.c | 11 +++++++---- 1 file changed, 7 insertions(+), 4 deletions(-) diff --git a/drivers/scsi/aic7xxx/aic79xx_osm.c b/drivers/scsi/aic7xxx/aic79xx_osm.c index 928099163f0f..8172ec43736c 100644 --- a/drivers/scsi/aic7xxx/aic79xx_osm.c +++ b/drivers/scsi/aic7xxx/aic79xx_osm.c @@ -541,8 +541,11 @@ ahd_linux_unmap_scb(struct ahd_softc *ahd, struct scb *scb) } /******************************** Macros **************************************/ -#define BUILD_SCSIID(ahd, cmd) \ - (((scmd_id(cmd) << TID_SHIFT) & TID) | (ahd)->our_id) +static inline unsigned int ahd_build_scsiid(struct ahd_softc *ahd, + struct scsi_device *sdev) +{ + return ((sdev_id(sdev) << TID_SHIFT) & TID) | (ahd)->our_id; +} /* * Return a string describing the driver. @@ -818,7 +821,7 @@ ahd_linux_dev_reset(struct scsi_cmnd *cmd) ahd_set_sense_residual(reset_scb, 0); reset_scb->platform_data->xfer_len = 0; reset_scb->hscb->control = 0; - reset_scb->hscb->scsiid = BUILD_SCSIID(ahd,cmd); + reset_scb->hscb->scsiid = ahd_build_scsiid(ahd, cmd->device); reset_scb->hscb->lun = cmd->device->lun; reset_scb->hscb->cdb_len = 0; reset_scb->hscb->task_management = SIU_TASKMGMT_LUN_RESET; @@ -1577,7 +1580,7 @@ ahd_linux_run_command(struct ahd_softc *ahd, struct ahd_linux_device *dev, * Fill out basics of the HSCB. */ hscb->control = 0; - hscb->scsiid = BUILD_SCSIID(ahd, cmd); + hscb->scsiid = ahd_build_scsiid(ahd, cmd->device); hscb->lun = cmd->device->lun; scb->hscb->task_management = 0; mask = SCB_GET_TARGET_MASK(ahd, scb); From patchwork Tue May 3 20:06:55 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Hannes Reinecke X-Patchwork-Id: 12836196 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 14526C433EF for ; Tue, 3 May 2022 20:07:49 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S237907AbiECULT (ORCPT ); Tue, 3 May 2022 16:11:19 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:45610 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S238116AbiECUKx (ORCPT ); Tue, 3 May 2022 16:10:53 -0400 Received: from smtp-out1.suse.de (smtp-out1.suse.de [195.135.220.28]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id AE4072714A for ; Tue, 3 May 2022 13:07:19 -0700 (PDT) Received: from relay2.suse.de (relay2.suse.de [149.44.160.134]) by smtp-out1.suse.de (Postfix) with ESMTP id 45CCB2187A; Tue, 3 May 2022 20:07:15 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=suse.de; s=susede2_rsa; t=1651608435; 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=VT0DS4hk1OevDjtCyYN2E+IpFr5T8Il90Y9a4msbKRU=; b=GJE5wNtykLZdHN7g+8C6jp6CKZzdr2bF10UTKsii+okppze2mbXppe0+n+T6tSYB7yKC0L WsdRVnhon/7piqgLF4Pb537B3LEiOnb3s+C439JpLQpxevCGTUpV71v2QgxUXBicbTyiOu FhxM6ik3xVzDrAaCA0ArL0B5qb8r/HM= DKIM-Signature: v=1; a=ed25519-sha256; c=relaxed/relaxed; d=suse.de; s=susede2_ed25519; t=1651608435; 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=VT0DS4hk1OevDjtCyYN2E+IpFr5T8Il90Y9a4msbKRU=; b=xHQuUgvcelnUCjhrnFEJXEIGBMbETtWBfL90NuFQ+TTDqE+kuORoJrCcnTUvD+I2ZEpyv6 9X0GIBfJp6l16aDw== Received: from adalid.arch.suse.de (adalid.arch.suse.de [10.161.8.13]) by relay2.suse.de (Postfix) with ESMTP id 2E96B2C166; Tue, 3 May 2022 20:07:15 +0000 (UTC) Received: by adalid.arch.suse.de (Postfix, from userid 16045) id 3DFCB51941E4; Tue, 3 May 2022 22:07:15 +0200 (CEST) From: Hannes Reinecke To: "Martin K. Petersen" Cc: Christoph Hellwig , James Bottomley , linux-scsi@vger.kernel.org, Hannes Reinecke Subject: [PATCH 15/24] aic7xxx: do not reference scsi command when resetting device Date: Tue, 3 May 2022 22:06:55 +0200 Message-Id: <20220503200704.88003-16-hare@suse.de> X-Mailer: git-send-email 2.29.2 In-Reply-To: <20220503200704.88003-1-hare@suse.de> References: <20220503200704.88003-1-hare@suse.de> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-scsi@vger.kernel.org When sending a device reset we should not take a reference to the scsi command. Signed-off-by: Hannes Reinecke Reviewed-by: Christoph Hellwig --- drivers/scsi/aic7xxx/aic7xxx_osm.c | 102 +++++++++++++++-------------- 1 file changed, 54 insertions(+), 48 deletions(-) diff --git a/drivers/scsi/aic7xxx/aic7xxx_osm.c b/drivers/scsi/aic7xxx/aic7xxx_osm.c index 05591650f89f..596d5870b024 100644 --- a/drivers/scsi/aic7xxx/aic7xxx_osm.c +++ b/drivers/scsi/aic7xxx/aic7xxx_osm.c @@ -366,7 +366,8 @@ static void ahc_linux_queue_cmd_complete(struct ahc_softc *ahc, struct scsi_cmnd *cmd); static void ahc_linux_freeze_simq(struct ahc_softc *ahc); static void ahc_linux_release_simq(struct ahc_softc *ahc); -static int ahc_linux_queue_recovery_cmd(struct scsi_cmnd *cmd, scb_flag flag); +static int ahc_linux_queue_recovery_cmd(struct scsi_device *sdev, + struct scsi_cmnd *cmd); static void ahc_linux_initialize_scsi_bus(struct ahc_softc *ahc); static u_int ahc_linux_user_tagdepth(struct ahc_softc *ahc, struct ahc_devinfo *devinfo); @@ -728,7 +729,7 @@ ahc_linux_abort(struct scsi_cmnd *cmd) { int error; - error = ahc_linux_queue_recovery_cmd(cmd, SCB_ABORT); + error = ahc_linux_queue_recovery_cmd(cmd->device, cmd); if (error != SUCCESS) printk("aic7xxx_abort returns 0x%x\n", error); return (error); @@ -742,7 +743,7 @@ ahc_linux_dev_reset(struct scsi_cmnd *cmd) { int error; - error = ahc_linux_queue_recovery_cmd(cmd, SCB_DEVICE_RESET); + error = ahc_linux_queue_recovery_cmd(cmd->device, NULL); if (error != SUCCESS) printk("aic7xxx_dev_reset returns 0x%x\n", error); return (error); @@ -2036,11 +2037,12 @@ ahc_linux_release_simq(struct ahc_softc *ahc) } static int -ahc_linux_queue_recovery_cmd(struct scsi_cmnd *cmd, scb_flag flag) +ahc_linux_queue_recovery_cmd(struct scsi_device *sdev, + struct scsi_cmnd *cmd) { struct ahc_softc *ahc; struct ahc_linux_device *dev; - struct scb *pending_scb; + struct scb *pending_scb = NULL, *scb; u_int saved_scbptr; u_int active_scb_index; u_int last_phase; @@ -2053,18 +2055,19 @@ ahc_linux_queue_recovery_cmd(struct scsi_cmnd *cmd, scb_flag flag) int disconnected; unsigned long flags; - pending_scb = NULL; paused = FALSE; wait = FALSE; - ahc = *(struct ahc_softc **)cmd->device->host->hostdata; + ahc = *(struct ahc_softc **)sdev->host->hostdata; - scmd_printk(KERN_INFO, cmd, "Attempting to queue a%s message\n", - flag == SCB_ABORT ? "n ABORT" : " TARGET RESET"); + sdev_printk(KERN_INFO, sdev, "Attempting to queue a%s message\n", + cmd ? "n ABORT" : " TARGET RESET"); - printk("CDB:"); - for (cdb_byte = 0; cdb_byte < cmd->cmd_len; cdb_byte++) - printk(" 0x%x", cmd->cmnd[cdb_byte]); - printk("\n"); + if (cmd) { + printk("CDB:"); + for (cdb_byte = 0; cdb_byte < cmd->cmd_len; cdb_byte++) + printk(" 0x%x", cmd->cmnd[cdb_byte]); + printk("\n"); + } ahc_lock(ahc, &flags); @@ -2075,7 +2078,7 @@ ahc_linux_queue_recovery_cmd(struct scsi_cmnd *cmd, scb_flag flag) * at all, and the system wanted us to just abort the * command, return success. */ - dev = scsi_transport_device_data(cmd->device); + dev = scsi_transport_device_data(sdev); if (dev == NULL) { /* @@ -2083,13 +2086,12 @@ ahc_linux_queue_recovery_cmd(struct scsi_cmnd *cmd, scb_flag flag) * so we must not still own the command. */ printk("%s:%d:%d:%d: Is not an active device\n", - ahc_name(ahc), cmd->device->channel, cmd->device->id, - (u8)cmd->device->lun); + ahc_name(ahc), sdev->channel, sdev->id, (u8)sdev->lun); retval = SUCCESS; goto no_cmd; } - if ((dev->flags & (AHC_DEV_Q_BASIC|AHC_DEV_Q_TAGGED)) == 0 + if (cmd && (dev->flags & (AHC_DEV_Q_BASIC|AHC_DEV_Q_TAGGED)) == 0 && ahc_search_untagged_queues(ahc, cmd, cmd->device->id, cmd->device->channel + 'A', (u8)cmd->device->lun, @@ -2104,25 +2106,28 @@ ahc_linux_queue_recovery_cmd(struct scsi_cmnd *cmd, scb_flag flag) /* * See if we can find a matching cmd in the pending list. */ - LIST_FOREACH(pending_scb, &ahc->pending_scbs, pending_links) { - if (pending_scb->io_ctx == cmd) + LIST_FOREACH(scb, &ahc->pending_scbs, pending_links) { + if (cmd && scb->io_ctx == cmd) { + pending_scb = scb; break; + } } - if (pending_scb == NULL && flag == SCB_DEVICE_RESET) { - + if (!cmd) { /* Any SCB for this device will do for a target reset */ - LIST_FOREACH(pending_scb, &ahc->pending_scbs, pending_links) { - if (ahc_match_scb(ahc, pending_scb, scmd_id(cmd), - scmd_channel(cmd) + 'A', + LIST_FOREACH(scb, &ahc->pending_scbs, pending_links) { + if (ahc_match_scb(ahc, scb, sdev->id, + sdev->channel + 'A', CAM_LUN_WILDCARD, - SCB_LIST_NULL, ROLE_INITIATOR)) + SCB_LIST_NULL, ROLE_INITIATOR)) { + pending_scb = scb; break; + } } } if (pending_scb == NULL) { - scmd_printk(KERN_INFO, cmd, "Command not found\n"); + sdev_printk(KERN_INFO, sdev, "Command not found\n"); goto no_cmd; } @@ -2153,22 +2158,22 @@ ahc_linux_queue_recovery_cmd(struct scsi_cmnd *cmd, scb_flag flag) ahc_dump_card_state(ahc); disconnected = TRUE; - if (flag == SCB_ABORT) { - if (ahc_search_qinfifo(ahc, cmd->device->id, - cmd->device->channel + 'A', - cmd->device->lun, + if (cmd) { + if (ahc_search_qinfifo(ahc, sdev->id, + sdev->channel + 'A', + sdev->lun, pending_scb->hscb->tag, ROLE_INITIATOR, CAM_REQ_ABORTED, SEARCH_COMPLETE) > 0) { printk("%s:%d:%d:%d: Cmd aborted from QINFIFO\n", - ahc_name(ahc), cmd->device->channel, - cmd->device->id, (u8)cmd->device->lun); + ahc_name(ahc), sdev->channel, + sdev->id, (u8)sdev->lun); retval = SUCCESS; goto done; } - } else if (ahc_search_qinfifo(ahc, cmd->device->id, - cmd->device->channel + 'A', - cmd->device->lun, + } else if (ahc_search_qinfifo(ahc, sdev->id, + sdev->channel + 'A', + sdev->lun, pending_scb->hscb->tag, ROLE_INITIATOR, /*status*/0, SEARCH_COUNT) > 0) { @@ -2181,7 +2186,7 @@ ahc_linux_queue_recovery_cmd(struct scsi_cmnd *cmd, scb_flag flag) bus_scb = ahc_lookup_scb(ahc, ahc_inb(ahc, SCB_TAG)); if (bus_scb == pending_scb) disconnected = FALSE; - else if (flag != SCB_ABORT + else if (!cmd && ahc_inb(ahc, SAVED_SCSIID) == pending_scb->hscb->scsiid && ahc_inb(ahc, SAVED_LUN) == SCB_GET_LUN(pending_scb)) disconnected = FALSE; @@ -2201,18 +2206,18 @@ ahc_linux_queue_recovery_cmd(struct scsi_cmnd *cmd, scb_flag flag) saved_scsiid = ahc_inb(ahc, SAVED_SCSIID); if (last_phase != P_BUSFREE && (pending_scb->hscb->tag == active_scb_index - || (flag == SCB_DEVICE_RESET - && SCSIID_TARGET(ahc, saved_scsiid) == scmd_id(cmd)))) { + || (!cmd && SCSIID_TARGET(ahc, saved_scsiid) == sdev->id))) { /* * We're active on the bus, so assert ATN * and hope that the target responds. */ pending_scb = ahc_lookup_scb(ahc, active_scb_index); - pending_scb->flags |= SCB_RECOVERY_SCB|flag; + pending_scb->flags |= SCB_RECOVERY_SCB; + pending_scb->flags |= cmd ? SCB_ABORT : SCB_DEVICE_RESET; ahc_outb(ahc, MSG_OUT, HOST_MSG); ahc_outb(ahc, SCSISIGO, last_phase|ATNO); - scmd_printk(KERN_INFO, cmd, "Device is active, asserting ATN\n"); + sdev_printk(KERN_INFO, sdev, "Device is active, asserting ATN\n"); wait = TRUE; } else if (disconnected) { @@ -2233,7 +2238,8 @@ ahc_linux_queue_recovery_cmd(struct scsi_cmnd *cmd, scb_flag flag) * an unsolicited reselection occurred. */ pending_scb->hscb->control |= MK_MESSAGE|DISCONNECTED; - pending_scb->flags |= SCB_RECOVERY_SCB|flag; + pending_scb->flags |= SCB_RECOVERY_SCB; + pending_scb->flags |= cmd ? SCB_ABORT : SCB_DEVICE_RESET; /* * Remove any cached copy of this SCB in the @@ -2242,9 +2248,9 @@ ahc_linux_queue_recovery_cmd(struct scsi_cmnd *cmd, scb_flag flag) * same element in the SCB, SCB_NEXT, for * both the qinfifo and the disconnected list. */ - ahc_search_disc_list(ahc, cmd->device->id, - cmd->device->channel + 'A', - cmd->device->lun, pending_scb->hscb->tag, + ahc_search_disc_list(ahc, sdev->id, + sdev->channel + 'A', + sdev->lun, pending_scb->hscb->tag, /*stop_on_first*/TRUE, /*remove*/TRUE, /*save_state*/FALSE); @@ -2267,9 +2273,9 @@ ahc_linux_queue_recovery_cmd(struct scsi_cmnd *cmd, scb_flag flag) * so we are the next SCB for this target * to run. */ - ahc_search_qinfifo(ahc, cmd->device->id, - cmd->device->channel + 'A', - cmd->device->lun, SCB_LIST_NULL, + ahc_search_qinfifo(ahc, sdev->id, + sdev->channel + 'A', + (u8)sdev->lun, SCB_LIST_NULL, ROLE_INITIATOR, CAM_REQUEUE_REQ, SEARCH_COMPLETE); ahc_qinfifo_requeue_tail(ahc, pending_scb); @@ -2278,7 +2284,7 @@ ahc_linux_queue_recovery_cmd(struct scsi_cmnd *cmd, scb_flag flag) printk("Device is disconnected, re-queuing SCB\n"); wait = TRUE; } else { - scmd_printk(KERN_INFO, cmd, "Unable to deliver message\n"); + sdev_printk(KERN_INFO, sdev, "Unable to deliver message\n"); retval = FAILED; goto done; } From patchwork Tue May 3 20:06:56 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Hannes Reinecke X-Patchwork-Id: 12836197 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 812B9C433FE for ; Tue, 3 May 2022 20:07:49 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S236380AbiECULV (ORCPT ); Tue, 3 May 2022 16:11:21 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:45612 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S238181AbiECUKx (ORCPT ); Tue, 3 May 2022 16:10:53 -0400 Received: from smtp-out1.suse.de (smtp-out1.suse.de [195.135.220.28]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 73F15403C1 for ; Tue, 3 May 2022 13:07:20 -0700 (PDT) Received: from relay2.suse.de (relay2.suse.de [149.44.160.134]) by smtp-out1.suse.de (Postfix) with ESMTP id 4BD072187C; Tue, 3 May 2022 20:07:15 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=suse.de; s=susede2_rsa; t=1651608435; 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=/hPZtiLtQet+/3vBKYih6afciLEzqn2pesWwmPdkqMo=; b=Eb8NnMmczkKGNBRR7F0SZkkBb/v2K3xWlll9LFdB2JaKGT66VUZa+Np0z3LiF3qfZB7kO8 5VgPIAF1imvTRIgbiuNIrRUA1XNw5vI8vNLE1Tq7scDFtwfZB2ZktAUmmvRuJzDv3ZFPeR 8PCw9BChxBxOkjyZDeyziS3+DWVqs00= DKIM-Signature: v=1; a=ed25519-sha256; c=relaxed/relaxed; d=suse.de; s=susede2_ed25519; t=1651608435; 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=/hPZtiLtQet+/3vBKYih6afciLEzqn2pesWwmPdkqMo=; b=FyKL3LiwOUf6UEyVAzE1a+rEDRBL1CzmIV/AgpJeoTebkCnSmEwtpW86CkZ8MjcFEHG8+X ehM3Ttq1MDkapiAw== Received: from adalid.arch.suse.de (adalid.arch.suse.de [10.161.8.13]) by relay2.suse.de (Postfix) with ESMTP id 3511F2C142; Tue, 3 May 2022 20:07:15 +0000 (UTC) Received: by adalid.arch.suse.de (Postfix, from userid 16045) id 4339851941E6; Tue, 3 May 2022 22:07:15 +0200 (CEST) From: Hannes Reinecke To: "Martin K. Petersen" Cc: Christoph Hellwig , James Bottomley , linux-scsi@vger.kernel.org, Hannes Reinecke Subject: [PATCH 16/24] aic79xx: do not reference scsi command when resetting device Date: Tue, 3 May 2022 22:06:56 +0200 Message-Id: <20220503200704.88003-17-hare@suse.de> X-Mailer: git-send-email 2.29.2 In-Reply-To: <20220503200704.88003-1-hare@suse.de> References: <20220503200704.88003-1-hare@suse.de> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-scsi@vger.kernel.org When sending a device reset we should not take a reference to the scsi command. Signed-off-by: Hannes Reinecke Reviewed-by: Christoph Hellwig --- drivers/scsi/aic7xxx/aic79xx_osm.c | 21 +++++++++++++++------ 1 file changed, 15 insertions(+), 6 deletions(-) diff --git a/drivers/scsi/aic7xxx/aic79xx_osm.c b/drivers/scsi/aic7xxx/aic79xx_osm.c index 8172ec43736c..109a61162fcc 100644 --- a/drivers/scsi/aic7xxx/aic79xx_osm.c +++ b/drivers/scsi/aic7xxx/aic79xx_osm.c @@ -536,8 +536,10 @@ ahd_linux_unmap_scb(struct ahd_softc *ahd, struct scb *scb) struct scsi_cmnd *cmd; cmd = scb->io_ctx; - ahd_sync_sglist(ahd, scb, BUS_DMASYNC_POSTWRITE); - scsi_dma_unmap(cmd); + if (cmd) { + ahd_sync_sglist(ahd, scb, BUS_DMASYNC_POSTWRITE); + scsi_dma_unmap(cmd); + } } /******************************** Macros **************************************/ @@ -814,7 +816,7 @@ ahd_linux_dev_reset(struct scsi_cmnd *cmd) tinfo = ahd_fetch_transinfo(ahd, 'A', ahd->our_id, cmd->device->id, &tstate); - reset_scb->io_ctx = cmd; + reset_scb->io_ctx = NULL; reset_scb->platform_data->dev = dev; reset_scb->sg_count = 0; ahd_set_residual(reset_scb, 0); @@ -1769,9 +1771,16 @@ ahd_done(struct ahd_softc *ahd, struct scb *scb) dev = scb->platform_data->dev; dev->active--; dev->openings++; - if ((cmd->result & (CAM_DEV_QFRZN << 16)) != 0) { - cmd->result &= ~(CAM_DEV_QFRZN << 16); - dev->qfrozen--; + if (cmd) { + if ((cmd->result & (CAM_DEV_QFRZN << 16)) != 0) { + cmd->result &= ~(CAM_DEV_QFRZN << 16); + dev->qfrozen--; + } + } else if (scb->flags & SCB_DEVICE_RESET) { + if (ahd->platform_data->eh_done) + complete(ahd->platform_data->eh_done); + ahd_free_scb(ahd, scb); + return; } ahd_linux_unmap_scb(ahd, scb); From patchwork Tue May 3 20:06:57 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Hannes Reinecke X-Patchwork-Id: 12836199 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 BAB67C433FE for ; Tue, 3 May 2022 20:07:51 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S238250AbiECULX (ORCPT ); Tue, 3 May 2022 16:11:23 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:45618 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S230466AbiECUKy (ORCPT ); Tue, 3 May 2022 16:10:54 -0400 Received: from smtp-out1.suse.de (smtp-out1.suse.de [195.135.220.28]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 73F59403C9 for ; Tue, 3 May 2022 13:07:20 -0700 (PDT) Received: from relay2.suse.de (relay2.suse.de [149.44.160.134]) by smtp-out1.suse.de (Postfix) with ESMTP id 5D2E62187D; Tue, 3 May 2022 20:07:15 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=suse.de; s=susede2_rsa; t=1651608435; 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=t9kqWrtR6rQYrTEOPBHuU+zmAD5YIiGUVdcENTriHBk=; b=0NEsyuxxQqCKW6aeZlo6anLPahExPYBSHKIgFNnkvBB1/XqCAY+fHebgS5gNMpl2QBNAPy AcCRTeEra6AOYVzvHZzNUUo9uNyv99d3bQhfVvnstvcziIu8Jq7AKtWXnCcXSO1aIc+XsS xz1F7LSQaecRRnH4+1qDq4Ziro17M9k= DKIM-Signature: v=1; a=ed25519-sha256; c=relaxed/relaxed; d=suse.de; s=susede2_ed25519; t=1651608435; 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=t9kqWrtR6rQYrTEOPBHuU+zmAD5YIiGUVdcENTriHBk=; b=i6L8SmAVPcNaHSiyzxmQaujhMz5QcDzP2aFgTQkEzhzmd1EJ4zSDm7SQ2cD8EoRJA6x8ff uBh/1NkDokS1TgAA== Received: from adalid.arch.suse.de (adalid.arch.suse.de [10.161.8.13]) by relay2.suse.de (Postfix) with ESMTP id 38BDF2C16B; Tue, 3 May 2022 20:07:15 +0000 (UTC) Received: by adalid.arch.suse.de (Postfix, from userid 16045) id 48CB151941E8; Tue, 3 May 2022 22:07:15 +0200 (CEST) From: Hannes Reinecke To: "Martin K. Petersen" Cc: Christoph Hellwig , James Bottomley , linux-scsi@vger.kernel.org, Hannes Reinecke Subject: [PATCH 17/24] snic: reserve tag for TMF Date: Tue, 3 May 2022 22:06:57 +0200 Message-Id: <20220503200704.88003-18-hare@suse.de> X-Mailer: git-send-email 2.29.2 In-Reply-To: <20220503200704.88003-1-hare@suse.de> References: <20220503200704.88003-1-hare@suse.de> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-scsi@vger.kernel.org Rather than re-using the failed command the snic driver should reserve one command for TMFs. Signed-off-by: Hannes Reinecke Reviewed-by: Christoph Hellwig --- drivers/scsi/snic/snic.h | 3 ++- drivers/scsi/snic/snic_main.c | 3 +++ drivers/scsi/snic/snic_scsi.c | 43 +++++++++++++++++------------------ 3 files changed, 26 insertions(+), 23 deletions(-) diff --git a/drivers/scsi/snic/snic.h b/drivers/scsi/snic/snic.h index 4ec7e30678e1..e40492d36031 100644 --- a/drivers/scsi/snic/snic.h +++ b/drivers/scsi/snic/snic.h @@ -310,6 +310,7 @@ struct snic { struct list_head spl_cmd_list; unsigned int max_tag_id; + unsigned int tmf_tag_id; atomic_t ios_inflight; /* io in flight counter */ struct vnic_snic_config config; @@ -380,7 +381,7 @@ int snic_queuecommand(struct Scsi_Host *, struct scsi_cmnd *); int snic_abort_cmd(struct scsi_cmnd *); int snic_device_reset(struct scsi_cmnd *); int snic_host_reset(struct scsi_cmnd *); -int snic_reset(struct Scsi_Host *, struct scsi_cmnd *); +int snic_reset(struct Scsi_Host *); void snic_shutdown_scsi_cleanup(struct snic *); diff --git a/drivers/scsi/snic/snic_main.c b/drivers/scsi/snic/snic_main.c index 29d56396058c..f344cbc27923 100644 --- a/drivers/scsi/snic/snic_main.c +++ b/drivers/scsi/snic/snic_main.c @@ -512,6 +512,9 @@ snic_probe(struct pci_dev *pdev, const struct pci_device_id *ent) max_t(u32, SNIC_MIN_IO_REQ, max_ios)); snic->max_tag_id = shost->can_queue; + /* Reserve one reset command */ + shost->can_queue--; + snic->tmf_tag_id = shost->can_queue; shost->max_lun = snic->config.luns_per_tgt; shost->max_id = SNIC_MAX_TARGET; diff --git a/drivers/scsi/snic/snic_scsi.c b/drivers/scsi/snic/snic_scsi.c index 5f17666f3e1d..e18c8c5e4b46 100644 --- a/drivers/scsi/snic/snic_scsi.c +++ b/drivers/scsi/snic/snic_scsi.c @@ -1018,17 +1018,6 @@ snic_hba_reset_cmpl_handler(struct snic *snic, struct snic_fw_req *fwreq) "reset_cmpl: type = %x, hdr_stat = %x, cmnd_id = %x, hid = %x, ctx = %lx\n", typ, hdr_stat, cmnd_id, hid, ctx); - /* spl case, host reset issued through ioctl */ - if (cmnd_id == SCSI_NO_TAG) { - rqi = (struct snic_req_info *) ctx; - SNIC_HOST_INFO(snic->shost, - "reset_cmpl:Tag %d ctx %lx cmpl stat %s\n", - cmnd_id, ctx, snic_io_status_to_str(hdr_stat)); - sc = rqi->sc; - - goto ioctl_hba_rst; - } - if (cmnd_id >= snic->max_tag_id) { SNIC_HOST_ERR(snic->shost, "reset_cmpl: Tag 0x%x out of Range,HdrStat %s\n", @@ -1039,7 +1028,6 @@ snic_hba_reset_cmpl_handler(struct snic *snic, struct snic_fw_req *fwreq) } sc = scsi_host_find_tag(snic->shost, cmnd_id); -ioctl_hba_rst: if (!sc) { atomic64_inc(&snic->s_stats.io.sc_null); SNIC_HOST_ERR(snic->shost, @@ -1725,7 +1713,7 @@ snic_dr_clean_single_req(struct snic *snic, { struct snic_req_info *rqi = NULL; struct snic_tgt *tgt = NULL; - struct scsi_cmnd *sc = NULL; + struct scsi_cmnd *sc; spinlock_t *io_lock = NULL; u32 sv_state = 0, tmf = 0; DECLARE_COMPLETION_ONSTACK(tm_done); @@ -2238,13 +2226,6 @@ snic_issue_hba_reset(struct snic *snic, struct scsi_cmnd *sc) goto hba_rst_end; } - if (snic_cmd_tag(sc) == SCSI_NO_TAG) { - memset(scsi_cmd_priv(sc), 0, - sizeof(struct snic_internal_io_state)); - SNIC_HOST_INFO(snic->shost, "issu_hr:Host reset thru ioctl.\n"); - rqi->sc = sc; - } - req = rqi_to_req(rqi); io_lock = snic_io_lock_hash(snic, sc); @@ -2319,11 +2300,13 @@ snic_issue_hba_reset(struct snic *snic, struct scsi_cmnd *sc) } /* end of snic_issue_hba_reset */ int -snic_reset(struct Scsi_Host *shost, struct scsi_cmnd *sc) +snic_reset(struct Scsi_Host *shost) { struct snic *snic = shost_priv(shost); + struct scsi_cmnd *sc = NULL; enum snic_state sv_state; unsigned long flags; + u32 start_time = jiffies; int ret = FAILED; /* Set snic state as SNIC_FWRESET*/ @@ -2348,6 +2331,18 @@ snic_reset(struct Scsi_Host *shost, struct scsi_cmnd *sc) while (atomic_read(&snic->ios_inflight)) schedule_timeout(msecs_to_jiffies(1)); + sc = scsi_host_find_tag(shost, snic->tmf_tag_id); + if (!sc) { + SNIC_HOST_ERR(shost, + "reset:Host Reset Failed to allocate sc.\n"); + spin_lock_irqsave(&snic->snic_lock, flags); + snic_set_state(snic, sv_state); + spin_unlock_irqrestore(&snic->snic_lock, flags); + atomic64_inc(&snic->s_stats.reset.hba_reset_fail); + ret = FAILED; + + goto reset_end; + } ret = snic_issue_hba_reset(snic, sc); if (ret) { SNIC_HOST_ERR(shost, @@ -2365,6 +2360,10 @@ snic_reset(struct Scsi_Host *shost, struct scsi_cmnd *sc) ret = SUCCESS; reset_end: + SNIC_TRC(shost->host_no, sc ? snic_cmd_tag(sc) : SCSI_NO_TAG, + (ulong) sc, jiffies_to_msecs(jiffies - start_time), + 0, 0, 0); + return ret; } /* end of snic_reset */ @@ -2387,7 +2386,7 @@ snic_host_reset(struct scsi_cmnd *sc) sc, sc->cmnd[0], scsi_cmd_to_rq(sc), snic_cmd_tag(sc), CMD_FLAGS(sc)); - ret = snic_reset(shost, sc); + ret = snic_reset(shost); SNIC_TRC(shost->host_no, snic_cmd_tag(sc), (ulong) sc, jiffies_to_msecs(jiffies - start_time), From patchwork Tue May 3 20:06:58 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Hannes Reinecke X-Patchwork-Id: 12836203 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 6D0CEC433EF for ; Tue, 3 May 2022 20:07:57 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S242204AbiECUL1 (ORCPT ); Tue, 3 May 2022 16:11:27 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:45552 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S238208AbiECUKy (ORCPT ); Tue, 3 May 2022 16:10:54 -0400 Received: from smtp-out1.suse.de (smtp-out1.suse.de [195.135.220.28]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 36FAF403D1 for ; Tue, 3 May 2022 13:07:21 -0700 (PDT) Received: from relay2.suse.de (relay2.suse.de [149.44.160.134]) by smtp-out1.suse.de (Postfix) with ESMTP id 632422187E; Tue, 3 May 2022 20:07:15 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=suse.de; s=susede2_rsa; t=1651608435; 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=9rcgIgpTsXb0VhAcFJKyuu+nX28JMFxru3Q9+puRTQI=; b=mcIPaJzqgljBfdTALRROuMxC4TRDsiPabdkXP2SwrHxx2LihN+x3rWu8FBG43qon2vloF3 /DIZNieyVA2JGg4hSsQoVhNPjxKSc3UsDbLUGrA0EKFA6QEF2PAsPEKUHb/Qy8He1dXEd6 D1KF5ro7g8GvQn94P4u0o8Pkg1yX4GU= DKIM-Signature: v=1; a=ed25519-sha256; c=relaxed/relaxed; d=suse.de; s=susede2_ed25519; t=1651608435; 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=9rcgIgpTsXb0VhAcFJKyuu+nX28JMFxru3Q9+puRTQI=; b=RY9OnqUTmy6hkCnbZYqjqZbXnRVgkIU1mvH3XWvax9lrmoExQb0BWJhpIzOjn1bUenK3Fx WVmdNXxf1xWCKsAA== Received: from adalid.arch.suse.de (adalid.arch.suse.de [10.161.8.13]) by relay2.suse.de (Postfix) with ESMTP id 3F8352C16D; Tue, 3 May 2022 20:07:15 +0000 (UTC) Received: by adalid.arch.suse.de (Postfix, from userid 16045) id 4F1F251941EA; Tue, 3 May 2022 22:07:15 +0200 (CEST) From: Hannes Reinecke To: "Martin K. Petersen" Cc: Christoph Hellwig , James Bottomley , linux-scsi@vger.kernel.org, Hannes Reinecke Subject: [PATCH 18/24] snic: use dedicated device reset command Date: Tue, 3 May 2022 22:06:58 +0200 Message-Id: <20220503200704.88003-19-hare@suse.de> X-Mailer: git-send-email 2.29.2 In-Reply-To: <20220503200704.88003-1-hare@suse.de> References: <20220503200704.88003-1-hare@suse.de> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-scsi@vger.kernel.org Use a dedicated command to send a device reset instead of relying on using the command which triggered the device failure. Signed-off-by: Hannes Reinecke Reviewed-by: Christoph Hellwig --- drivers/scsi/snic/snic_scsi.c | 52 ++++++++++++++++------------------- 1 file changed, 24 insertions(+), 28 deletions(-) diff --git a/drivers/scsi/snic/snic_scsi.c b/drivers/scsi/snic/snic_scsi.c index e18c8c5e4b46..0d6156085616 100644 --- a/drivers/scsi/snic/snic_scsi.c +++ b/drivers/scsi/snic/snic_scsi.c @@ -2128,57 +2128,53 @@ snic_unlink_and_release_req(struct snic *snic, struct scsi_cmnd *sc, int flag) int snic_device_reset(struct scsi_cmnd *sc) { - struct Scsi_Host *shost = sc->device->host; + struct scsi_device *sdev = sc->device; + struct Scsi_Host *shost = sdev->host; struct snic *snic = shost_priv(shost); struct snic_req_info *rqi = NULL; - int tag = snic_cmd_tag(sc); int start_time = jiffies; int ret = FAILED; int dr_supp = 0; - SNIC_SCSI_DBG(shost, "dev_reset:sc %p :0x%x :req = %p :tag = %d\n", - sc, sc->cmnd[0], scsi_cmd_to_rq(sc), - snic_cmd_tag(sc)); - dr_supp = snic_dev_reset_supported(sc->device); + SNIC_SCSI_DBG(shost, "dev_reset\n"); + dr_supp = snic_dev_reset_supported(sdev); if (!dr_supp) { /* device reset op is not supported */ SNIC_HOST_INFO(shost, "LUN Reset Op not supported.\n"); - snic_unlink_and_release_req(snic, sc, SNIC_DEV_RST_NOTSUP); - goto dev_rst_end; } if (unlikely(snic_get_state(snic) != SNIC_ONLINE)) { - snic_unlink_and_release_req(snic, sc, 0); SNIC_HOST_ERR(shost, "Devrst: Parent Devs are not online.\n"); goto dev_rst_end; } - /* There is no tag when lun reset is issue through ioctl. */ - if (unlikely(tag <= SNIC_NO_TAG)) { - SNIC_HOST_INFO(snic->shost, - "Devrst: LUN Reset Recvd thru IOCTL.\n"); - - rqi = snic_req_init(snic, 0); - if (!rqi) - goto dev_rst_end; - - memset(scsi_cmd_priv(sc), 0, - sizeof(struct snic_internal_io_state)); - CMD_SP(sc) = (char *)rqi; - CMD_FLAGS(sc) = SNIC_NO_FLAGS; + rqi = snic_req_init(snic, 0); + if (!rqi) + goto dev_rst_end; - /* Add special tag for dr coming from user spc */ - rqi->tm_tag = SNIC_TAG_IOCTL_DEV_RST; - rqi->sc = sc; + /* The last tag is reserved for device reset */ + sc = scsi_host_find_tag(snic->shost, snic->tmf_tag_id); + if (!sc || CMD_SP(sc)) { + SNIC_HOST_ERR(snic->shost, + "Devrst: TMF busy\n"); + goto dev_rst_end; } + memset(scsi_cmd_priv(sc), 0, + sizeof(struct snic_internal_io_state)); + CMD_SP(sc) = (char *)rqi; + CMD_FLAGS(sc) = SNIC_NO_FLAGS; + + /* Add special tag for dr coming from user spc */ + rqi->tm_tag = SNIC_TAG_IOCTL_DEV_RST; + rqi->sc = sc; ret = snic_send_dr_and_wait(snic, sc); if (ret) { SNIC_HOST_ERR(snic->shost, "Devrst: IO w/ Tag %x Failed w/ err = %d\n", - tag, ret); + snic_cmd_tag(sc), ret); snic_unlink_and_release_req(snic, sc, 0); @@ -2188,7 +2184,7 @@ snic_device_reset(struct scsi_cmnd *sc) ret = snic_dr_finish(snic, sc); dev_rst_end: - SNIC_TRC(snic->shost->host_no, tag, (ulong) sc, + SNIC_TRC(snic->shost->host_no, snic_cmd_tag(sc), (ulong) sc, jiffies_to_msecs(jiffies - start_time), 0, SNIC_TRC_CMD(sc), SNIC_TRC_CMD_STATE_FLAGS(sc)); @@ -2332,7 +2328,7 @@ snic_reset(struct Scsi_Host *shost) schedule_timeout(msecs_to_jiffies(1)); sc = scsi_host_find_tag(shost, snic->tmf_tag_id); - if (!sc) { + if (!sc || CMD_SP(sc)) { SNIC_HOST_ERR(shost, "reset:Host Reset Failed to allocate sc.\n"); spin_lock_irqsave(&snic->snic_lock, flags); From patchwork Tue May 3 20:06:59 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Hannes Reinecke X-Patchwork-Id: 12836186 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 3473FC433F5 for ; Tue, 3 May 2022 20:07:35 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S237670AbiECULD (ORCPT ); Tue, 3 May 2022 16:11:03 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:45556 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S237600AbiECUKv (ORCPT ); Tue, 3 May 2022 16:10:51 -0400 Received: from smtp-out2.suse.de (smtp-out2.suse.de [195.135.220.29]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id C57D02C112 for ; 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bh=iR4qTS8l9OQfsZi4iqddRFRSfF+t2nn2RbmFSQvJ5V0=; b=a19Njf5wwR97F+RxcE+AuTscLNvBmt8E4Nx09mkdwvjf1203AgkIVbY/5Td/T3G7N3YjXx NlfoJwinHpfuCmCA== Received: from adalid.arch.suse.de (adalid.arch.suse.de [10.161.8.13]) by relay2.suse.de (Postfix) with ESMTP id 4658F2C15A; Tue, 3 May 2022 20:07:15 +0000 (UTC) Received: by adalid.arch.suse.de (Postfix, from userid 16045) id 55C1851941EC; Tue, 3 May 2022 22:07:15 +0200 (CEST) From: Hannes Reinecke To: "Martin K. Petersen" Cc: Christoph Hellwig , James Bottomley , linux-scsi@vger.kernel.org, Hannes Reinecke Subject: [PATCH 19/24] snic: Use scsi_host_busy_iter() to traverse commands Date: Tue, 3 May 2022 22:06:59 +0200 Message-Id: <20220503200704.88003-20-hare@suse.de> X-Mailer: git-send-email 2.29.2 In-Reply-To: <20220503200704.88003-1-hare@suse.de> References: <20220503200704.88003-1-hare@suse.de> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-scsi@vger.kernel.org Use scsi_host_busy_iter() to traverse commands instead of hand-crafted routines walking the command list. Signed-off-by: Hannes Reinecke Reviewed-by: Christoph Hellwig --- drivers/scsi/snic/snic_scsi.c | 177 ++++++++++++++++------------------ 1 file changed, 84 insertions(+), 93 deletions(-) diff --git a/drivers/scsi/snic/snic_scsi.c b/drivers/scsi/snic/snic_scsi.c index 0d6156085616..635656ccf30a 100644 --- a/drivers/scsi/snic/snic_scsi.c +++ b/drivers/scsi/snic/snic_scsi.c @@ -77,7 +77,7 @@ static const char * const snic_io_status_str[] = { [SNIC_STAT_FATAL_ERROR] = "SNIC_STAT_FATAL_ERROR", }; -static void snic_scsi_cleanup(struct snic *, int); +static void snic_scsi_cleanup(struct snic *); const char * snic_state_to_str(unsigned int state) @@ -977,7 +977,7 @@ snic_hba_reset_scsi_cleanup(struct snic *snic, struct scsi_cmnd *sc) long act_ios = 0, act_fwreqs = 0; SNIC_SCSI_DBG(snic->shost, "HBA Reset scsi cleanup.\n"); - snic_scsi_cleanup(snic, snic_cmd_tag(sc)); + snic_scsi_cleanup(snic); /* Update stats on pending IOs */ act_ios = atomic64_read(&st->io.active); @@ -2420,53 +2420,36 @@ snic_cmpl_pending_tmreq(struct snic *snic, struct scsi_cmnd *sc) complete(rqi->abts_done); } -/* - * snic_scsi_cleanup: Walks through tag map and releases the reqs - */ -static void -snic_scsi_cleanup(struct snic *snic, int ex_tag) +static bool +snic_scsi_cleanup_iter(struct scsi_cmnd *sc, void *data, bool reserved) { + struct snic *snic = data; struct snic_req_info *rqi = NULL; - struct scsi_cmnd *sc = NULL; spinlock_t *io_lock = NULL; unsigned long flags; - int tag; + int tag = scsi_cmd_to_rq(sc)->tag; u64 st_time = 0; SNIC_SCSI_DBG(snic->shost, "sc_clean: scsi cleanup.\n"); - for (tag = 0; tag < snic->max_tag_id; tag++) { - /* Skip ex_tag */ - if (tag == ex_tag) - continue; - - io_lock = snic_io_lock_tag(snic, tag); - spin_lock_irqsave(io_lock, flags); - sc = scsi_host_find_tag(snic->shost, tag); - if (!sc) { - spin_unlock_irqrestore(io_lock, flags); - - continue; - } - - if (unlikely(snic_tmreq_pending(sc))) { - /* - * When FW Completes reset w/o sending completions - * for outstanding ios. - */ - snic_cmpl_pending_tmreq(snic, sc); - spin_unlock_irqrestore(io_lock, flags); - - continue; - } + io_lock = snic_io_lock_tag(snic, tag); + spin_lock_irqsave(io_lock, flags); - rqi = (struct snic_req_info *) CMD_SP(sc); - if (!rqi) { - spin_unlock_irqrestore(io_lock, flags); + if (unlikely(snic_tmreq_pending(sc))) { + /* + * When FW Completes reset w/o sending completions + * for outstanding ios. + */ + snic_cmpl_pending_tmreq(snic, sc); + spin_unlock_irqrestore(io_lock, flags); - goto cleanup; - } + return true; + } + rqi = (struct snic_req_info *) CMD_SP(sc); + if (!rqi) + spin_unlock_irqrestore(io_lock, flags); + else { SNIC_SCSI_DBG(snic->shost, "sc_clean: sc %p, rqi %p, tag %d flags 0x%llx\n", sc, rqi, tag, CMD_FLAGS(sc)); @@ -2481,24 +2464,34 @@ snic_scsi_cleanup(struct snic *snic, int ex_tag) rqi, CMD_FLAGS(sc)); snic_release_req_buf(snic, rqi, sc); + } + sc->result = DID_TRANSPORT_DISRUPTED << 16; + SNIC_HOST_INFO(snic->shost, + "sc_clean: DID_TRANSPORT_DISRUPTED for sc %p, Tag %d flags 0x%llx rqi %p duration %u msecs\n", + sc, tag, CMD_FLAGS(sc), rqi, + jiffies_to_msecs(jiffies - st_time)); -cleanup: - sc->result = DID_TRANSPORT_DISRUPTED << 16; - SNIC_HOST_INFO(snic->shost, - "sc_clean: DID_TRANSPORT_DISRUPTED for sc %p, Tag %d flags 0x%llx rqi %p duration %u msecs\n", - sc, scsi_cmd_to_rq(sc)->tag, CMD_FLAGS(sc), rqi, - jiffies_to_msecs(jiffies - st_time)); + /* Update IO stats */ + snic_stats_update_io_cmpl(&snic->s_stats); - /* Update IO stats */ - snic_stats_update_io_cmpl(&snic->s_stats); + SNIC_TRC(snic->shost->host_no, tag, (ulong) sc, + jiffies_to_msecs(jiffies - st_time), 0, + SNIC_TRC_CMD(sc), + SNIC_TRC_CMD_STATE_FLAGS(sc)); - SNIC_TRC(snic->shost->host_no, tag, (ulong) sc, - jiffies_to_msecs(jiffies - st_time), 0, - SNIC_TRC_CMD(sc), - SNIC_TRC_CMD_STATE_FLAGS(sc)); + scsi_done(sc); + return true; +} - scsi_done(sc); - } +/* + * snic_scsi_cleanup: Walks through tag map and releases the reqs + */ +static void +snic_scsi_cleanup(struct snic *snic) +{ + SNIC_SCSI_DBG(snic->shost, "sc_clean: scsi cleanup\n"); + + scsi_host_busy_iter(snic->shost, snic_scsi_cleanup_iter, snic); } /* end of snic_scsi_cleanup */ void @@ -2506,7 +2499,7 @@ snic_shutdown_scsi_cleanup(struct snic *snic) { SNIC_HOST_INFO(snic->shost, "Shutdown time SCSI Cleanup.\n"); - snic_scsi_cleanup(snic, SCSI_NO_TAG); + snic_scsi_cleanup(snic); } /* end of snic_shutdown_scsi_cleanup */ /* @@ -2520,7 +2513,7 @@ snic_internal_abort_io(struct snic *snic, struct scsi_cmnd *sc, int tmf) spinlock_t *io_lock = NULL; unsigned long flags; u32 sv_state = 0; - int ret = 0; + int ret = FAILED; io_lock = snic_io_lock_hash(snic, sc); spin_lock_irqsave(io_lock, flags); @@ -2595,6 +2588,35 @@ snic_internal_abort_io(struct snic *snic, struct scsi_cmnd *sc, int tmf) return ret; } /* end of snic_internal_abort_io */ +struct snic_tgt_scsi_abort_io_data { + struct snic *snic; + struct snic_tgt *tgt; + int tmf; + int abt_cnt; +}; + +static bool snic_tgt_scsi_abort_io_iter(struct scsi_cmnd *sc, void *data, + bool reserved) +{ + struct snic_tgt_scsi_abort_io_data *iter_data = data; + struct snic *snic = iter_data->snic; + struct snic_tgt *sc_tgt; + int ret; + + sc_tgt = starget_to_tgt(scsi_target(sc->device)); + if (sc_tgt != iter_data->tgt) + return true; + + ret = snic_internal_abort_io(snic, sc, iter_data->tmf); + if (ret == SUCCESS) + iter_data->abt_cnt++; + else + SNIC_HOST_ERR(snic->shost, + "tgt_abt_io: Tag %x, Failed w err = %d\n", + scsi_cmd_to_rq(sc)->tag, ret); + return true; +} + /* * snic_tgt_scsi_abort_io : called by snic_tgt_del */ @@ -2602,11 +2624,9 @@ int snic_tgt_scsi_abort_io(struct snic_tgt *tgt) { struct snic *snic = NULL; - struct scsi_cmnd *sc = NULL; - struct snic_tgt *sc_tgt = NULL; - spinlock_t *io_lock = NULL; - unsigned long flags; - int ret = 0, tag, abt_cnt = 0, tmf = 0; + struct snic_tgt_scsi_abort_io_data data = { + .abt_cnt = 0, + }; if (!tgt) return -1; @@ -2614,44 +2634,15 @@ snic_tgt_scsi_abort_io(struct snic_tgt *tgt) snic = shost_priv(snic_tgt_to_shost(tgt)); SNIC_SCSI_DBG(snic->shost, "tgt_abt_io: Cleaning Pending IOs.\n"); + data.snic = snic; if (tgt->tdata.typ == SNIC_TGT_DAS) - tmf = SNIC_ITMF_ABTS_TASK; + data.tmf = SNIC_ITMF_ABTS_TASK; else - tmf = SNIC_ITMF_ABTS_TASK_TERM; - - for (tag = 0; tag < snic->max_tag_id; tag++) { - io_lock = snic_io_lock_tag(snic, tag); - - spin_lock_irqsave(io_lock, flags); - sc = scsi_host_find_tag(snic->shost, tag); - if (!sc) { - spin_unlock_irqrestore(io_lock, flags); - - continue; - } + data.tmf = SNIC_ITMF_ABTS_TASK_TERM; - sc_tgt = starget_to_tgt(scsi_target(sc->device)); - if (sc_tgt != tgt) { - spin_unlock_irqrestore(io_lock, flags); - - continue; - } - spin_unlock_irqrestore(io_lock, flags); - - ret = snic_internal_abort_io(snic, sc, tmf); - if (ret < 0) { - SNIC_HOST_ERR(snic->shost, - "tgt_abt_io: Tag %x, Failed w err = %d\n", - tag, ret); - - continue; - } - - if (ret == SUCCESS) - abt_cnt++; - } + scsi_host_busy_iter(snic->shost, snic_tgt_scsi_abort_io_iter, &data); - SNIC_SCSI_DBG(snic->shost, "tgt_abt_io: abt_cnt = %d\n", abt_cnt); + SNIC_SCSI_DBG(snic->shost, "tgt_abt_io: abt_cnt = %d\n", data.abt_cnt); return 0; } /* end of snic_tgt_scsi_abort_io */ From patchwork Tue May 3 20:07:00 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Hannes Reinecke X-Patchwork-Id: 12836200 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 CDC6FC433F5 for ; Tue, 3 May 2022 20:07:53 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S242179AbiECULY (ORCPT ); Tue, 3 May 2022 16:11:24 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:45592 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S237808AbiECUKy (ORCPT ); Tue, 3 May 2022 16:10:54 -0400 Received: from smtp-out1.suse.de (smtp-out1.suse.de [195.135.220.28]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 35D6A403CE for ; Tue, 3 May 2022 13:07:21 -0700 (PDT) Received: from relay2.suse.de (relay2.suse.de [149.44.160.134]) by smtp-out1.suse.de (Postfix) with ESMTP id 65F2A2187F; 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Tue, 3 May 2022 20:07:15 +0000 (UTC) Received: by adalid.arch.suse.de (Postfix, from userid 16045) id 5C8E851941EE; Tue, 3 May 2022 22:07:15 +0200 (CEST) From: Hannes Reinecke To: "Martin K. Petersen" Cc: Christoph Hellwig , James Bottomley , linux-scsi@vger.kernel.org, Hannes Reinecke , Matthew Wilcox Subject: [PATCH 20/24] sym53c8xx_2: split off bus reset from host reset Date: Tue, 3 May 2022 22:07:00 +0200 Message-Id: <20220503200704.88003-21-hare@suse.de> X-Mailer: git-send-email 2.29.2 In-Reply-To: <20220503200704.88003-1-hare@suse.de> References: <20220503200704.88003-1-hare@suse.de> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-scsi@vger.kernel.org The current handler does both, bus reset and host reset. So split them off into two distinct functions. Signed-off-by: Hannes Reinecke Reviewed-by: Christoph Hellwig Cc: Matthew Wilcox --- drivers/scsi/sym53c8xx_2/sym_glue.c | 107 +++++++++++++++++----------- 1 file changed, 66 insertions(+), 41 deletions(-) diff --git a/drivers/scsi/sym53c8xx_2/sym_glue.c b/drivers/scsi/sym53c8xx_2/sym_glue.c index 2e2852bd5860..9166af69bbb4 100644 --- a/drivers/scsi/sym53c8xx_2/sym_glue.c +++ b/drivers/scsi/sym53c8xx_2/sym_glue.c @@ -559,8 +559,6 @@ static void sym53c8xx_timer(struct timer_list *t) */ #define SYM_EH_ABORT 0 #define SYM_EH_DEVICE_RESET 1 -#define SYM_EH_BUS_RESET 2 -#define SYM_EH_HOST_RESET 3 /* * Generic method for our eh processing. @@ -580,35 +578,11 @@ static int sym_eh_handler(int op, char *opname, struct scsi_cmnd *cmd) scmd_printk(KERN_WARNING, cmd, "%s operation started\n", opname); - /* We may be in an error condition because the PCI bus - * went down. In this case, we need to wait until the - * PCI bus is reset, the card is reset, and only then - * proceed with the scsi error recovery. There's no - * point in hurrying; take a leisurely wait. + /* + * Escalate to host reset if the PCI bus went down */ -#define WAIT_FOR_PCI_RECOVERY 35 - if (pci_channel_offline(pdev)) { - int finished_reset = 0; - init_completion(&eh_done); - spin_lock_irq(shost->host_lock); - /* Make sure we didn't race */ - if (pci_channel_offline(pdev)) { - BUG_ON(sym_data->io_reset); - sym_data->io_reset = &eh_done; - } else { - finished_reset = 1; - } - spin_unlock_irq(shost->host_lock); - if (!finished_reset) - finished_reset = wait_for_completion_timeout - (sym_data->io_reset, - WAIT_FOR_PCI_RECOVERY*HZ); - spin_lock_irq(shost->host_lock); - sym_data->io_reset = NULL; - spin_unlock_irq(shost->host_lock); - if (!finished_reset) - return SCSI_FAILED; - } + if (pci_channel_offline(pdev)) + return SCSI_FAILED; spin_lock_irq(shost->host_lock); /* This one is queued in some place -> to wait for completion */ @@ -629,15 +603,6 @@ static int sym_eh_handler(int op, char *opname, struct scsi_cmnd *cmd) case SYM_EH_DEVICE_RESET: sts = sym_reset_scsi_target(np, cmd->device->id); break; - case SYM_EH_BUS_RESET: - sym_reset_scsi_bus(np, 1); - sts = 0; - break; - case SYM_EH_HOST_RESET: - sym_reset_scsi_bus(np, 0); - sym_start_up(shost, 1); - sts = 0; - break; default: break; } @@ -679,12 +644,72 @@ static int sym53c8xx_eh_device_reset_handler(struct scsi_cmnd *cmd) static int sym53c8xx_eh_bus_reset_handler(struct scsi_cmnd *cmd) { - return sym_eh_handler(SYM_EH_BUS_RESET, "BUS RESET", cmd); + struct Scsi_Host *shost = cmd->device->host; + struct sym_data *sym_data = shost_priv(shost); + struct pci_dev *pdev = sym_data->pdev; + struct sym_hcb *np = sym_data->ncb; + + scmd_printk(KERN_WARNING, cmd, "BUS RESET operation started\n"); + + /* + * Escalate to host reset if the PCI bus went down + */ + if (pci_channel_offline(pdev)) + return SCSI_FAILED; + + spin_lock_irq(shost->host_lock); + sym_reset_scsi_bus(np, 1); + spin_unlock_irq(shost->host_lock); + + dev_warn(&cmd->device->sdev_gendev, "BUS RESET operation complete.\n"); + return SCSI_SUCCESS; } static int sym53c8xx_eh_host_reset_handler(struct scsi_cmnd *cmd) { - return sym_eh_handler(SYM_EH_HOST_RESET, "HOST RESET", cmd); + struct Scsi_Host *shost = cmd->device->host; + struct sym_data *sym_data = shost_priv(shost); + struct pci_dev *pdev = sym_data->pdev; + struct sym_hcb *np = sym_data->ncb; + struct completion eh_done; + int finished_reset = 1; + + shost_printk(KERN_WARNING, shost, "HOST RESET operation started\n"); + + /* We may be in an error condition because the PCI bus + * went down. In this case, we need to wait until the + * PCI bus is reset, the card is reset, and only then + * proceed with the scsi error recovery. There's no + * point in hurrying; take a leisurely wait. + */ +#define WAIT_FOR_PCI_RECOVERY 35 + if (pci_channel_offline(pdev)) { + init_completion(&eh_done); + spin_lock_irq(shost->host_lock); + /* Make sure we didn't race */ + if (pci_channel_offline(pdev)) { + BUG_ON(sym_data->io_reset); + sym_data->io_reset = &eh_done; + finished_reset = 0; + } + spin_unlock_irq(shost->host_lock); + if (!finished_reset) + finished_reset = wait_for_completion_timeout + (sym_data->io_reset, + WAIT_FOR_PCI_RECOVERY*HZ); + spin_lock_irq(shost->host_lock); + sym_data->io_reset = NULL; + spin_unlock_irq(shost->host_lock); + } + + if (finished_reset) { + sym_reset_scsi_bus(np, 0); + sym_start_up(shost, 1); + } + + shost_printk(KERN_WARNING, shost, "HOST RESET operation %s.\n", + finished_reset==1 ? "complete" : "failed"); + return finished_reset ? SCSI_SUCCESS : SCSI_FAILED; } /* From patchwork Tue May 3 20:07:01 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Hannes Reinecke X-Patchwork-Id: 12836202 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 94651C433EF for ; Tue, 3 May 2022 20:07:55 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S238249AbiECUL0 (ORCPT ); Tue, 3 May 2022 16:11:26 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:45670 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S238318AbiECUKz (ORCPT ); Tue, 3 May 2022 16:10:55 -0400 Received: from smtp-out1.suse.de (smtp-out1.suse.de [195.135.220.28]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id F3E7827143 for ; Tue, 3 May 2022 13:07:21 -0700 (PDT) Received: from relay2.suse.de (relay2.suse.de [149.44.160.134]) by smtp-out1.suse.de (Postfix) with ESMTP id DB64921883; Tue, 3 May 2022 20:07:15 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=suse.de; s=susede2_rsa; t=1651608435; 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=D2ayq6iWFQsACj+mwIsfmfVyr04/ST/y6XXgkwgyQV0=; b=e0fz6bg4hwBKRF/aYwoGezG0/uWka4C2jZ1oxNkpOEN5qLMPDKw2BM7t0rJI4OFjDP5oD9 JNTljUs7Fmi+9tDFU+uPx0dOnEXofIvLGpvShEVOgljnqDWbCqkLGc9Pr4DVsHL70G/bn/ uka7JM6glM1/IQ8fykeAdhELEhzmcak= DKIM-Signature: v=1; a=ed25519-sha256; c=relaxed/relaxed; d=suse.de; s=susede2_ed25519; t=1651608435; 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=D2ayq6iWFQsACj+mwIsfmfVyr04/ST/y6XXgkwgyQV0=; b=YI/14cbeHMea2StYkueJrBleh9asnQbyp0tbhRSnJCkKh/xptQBuIOloy+Q/J1Gj7eKMjg +QcnmjXRKAz7KPBQ== Received: from adalid.arch.suse.de (adalid.arch.suse.de [10.161.8.13]) by relay2.suse.de (Postfix) with ESMTP id 52D2B2C16F; Tue, 3 May 2022 20:07:15 +0000 (UTC) Received: by adalid.arch.suse.de (Postfix, from userid 16045) id 62D5E51941F0; Tue, 3 May 2022 22:07:15 +0200 (CEST) From: Hannes Reinecke To: "Martin K. Petersen" Cc: Christoph Hellwig , James Bottomley , linux-scsi@vger.kernel.org, Hannes Reinecke , Adaptec OEM Raid Solutions Subject: [PATCH 21/24] ips: Do not try to abort command from host reset Date: Tue, 3 May 2022 22:07:01 +0200 Message-Id: <20220503200704.88003-22-hare@suse.de> X-Mailer: git-send-email 2.29.2 In-Reply-To: <20220503200704.88003-1-hare@suse.de> References: <20220503200704.88003-1-hare@suse.de> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-scsi@vger.kernel.org The code for aborting an outstanding command is a copy of the functionality from command abort. As we already have called this function once we reach host reset there's no point in trying to do so again. Signed-off-by: Hannes Reinecke Reviewed-by: Christoph Hellwig Cc: Adaptec OEM Raid Solutions --- drivers/scsi/ips.c | 18 ------------------ 1 file changed, 18 deletions(-) diff --git a/drivers/scsi/ips.c b/drivers/scsi/ips.c index 16419aeec02d..d49c1d6df5d6 100644 --- a/drivers/scsi/ips.c +++ b/drivers/scsi/ips.c @@ -835,7 +835,6 @@ static int __ips_eh_reset(struct scsi_cmnd *SC) int i; ips_ha_t *ha; ips_scb_t *scb; - ips_copp_wait_item_t *item; METHOD_TRACE("ips_eh_reset", 1); @@ -860,23 +859,6 @@ static int __ips_eh_reset(struct scsi_cmnd *SC) if (!ha->active) return (FAILED); - /* See if the command is on the copp queue */ - item = ha->copp_waitlist.head; - while ((item) && (item->scsi_cmd != SC)) - item = item->next; - - if (item) { - /* Found it */ - ips_removeq_copp(&ha->copp_waitlist, item); - return (SUCCESS); - } - - /* See if the command is on the wait queue */ - if (ips_removeq_wait(&ha->scb_waitlist, SC)) { - /* command not sent yet */ - return (SUCCESS); - } - /* An explanation for the casual observer: */ /* Part of the function of a RAID controller is automatic error */ /* detection and recovery. As such, the only problem that physically */ From patchwork Tue May 3 20:07:02 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Hannes Reinecke X-Patchwork-Id: 12836201 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 399B5C433FE for ; Tue, 3 May 2022 20:07:54 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S236098AbiECUL0 (ORCPT ); Tue, 3 May 2022 16:11:26 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:45628 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S238249AbiECUKz (ORCPT ); Tue, 3 May 2022 16:10:55 -0400 Received: from smtp-out1.suse.de (smtp-out1.suse.de [195.135.220.28]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id A1AE72656D for ; Tue, 3 May 2022 13:07:21 -0700 (PDT) Received: from relay2.suse.de (relay2.suse.de [149.44.160.134]) by smtp-out1.suse.de (Postfix) with ESMTP id 70C5B21880; Tue, 3 May 2022 20:07:15 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=suse.de; s=susede2_rsa; t=1651608435; 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=LvhVw/SGY35D1y4zwlfAN3G0hMz0D0jZYefn3xgS5h0=; b=tgvVM5qax0xb1hzNlWjhkZoDD38qKBq8U4zALk1a4M0TDLV5LkOB0TwtwLaEA0rrp2DH3D FaWusgFxHGbflHqW6Axf/vzbzegtAe0z99swh4y/PuKGneHKX7SIc4MtH70VKgQuY6yBtQ 2MT1ieDV2A8OH+1BI6Y1ODwZqys/XFo= DKIM-Signature: v=1; a=ed25519-sha256; c=relaxed/relaxed; d=suse.de; s=susede2_ed25519; t=1651608435; 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=LvhVw/SGY35D1y4zwlfAN3G0hMz0D0jZYefn3xgS5h0=; b=lX5dEIXdkWPnvrqRMxs2sSfiyP7S+RoQOJtHk1cjvittJ7fD+rnh7a2uQjbf/qCpfKMo5o Stt6vDXvQY2sM1Bg== Received: from adalid.arch.suse.de (adalid.arch.suse.de [10.161.8.13]) by relay2.suse.de (Postfix) with ESMTP id 58F802C171; Tue, 3 May 2022 20:07:15 +0000 (UTC) Received: by adalid.arch.suse.de (Postfix, from userid 16045) id 6854E51941F2; Tue, 3 May 2022 22:07:15 +0200 (CEST) From: Hannes Reinecke To: "Martin K. Petersen" Cc: Christoph Hellwig , James Bottomley , linux-scsi@vger.kernel.org, Hannes Reinecke Subject: [PATCH 22/24] qla1280: separate out host reset function from qla1280_error_action() Date: Tue, 3 May 2022 22:07:02 +0200 Message-Id: <20220503200704.88003-23-hare@suse.de> X-Mailer: git-send-email 2.29.2 In-Reply-To: <20220503200704.88003-1-hare@suse.de> References: <20220503200704.88003-1-hare@suse.de> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-scsi@vger.kernel.org There's not much in common between host reset and all other error handlers, so use a separate function here. Signed-off-by: Hannes Reinecke Reviewed-by: Christoph Hellwig --- drivers/scsi/qla1280.c | 42 ++++++++++++++++++++++-------------------- 1 file changed, 22 insertions(+), 20 deletions(-) diff --git a/drivers/scsi/qla1280.c b/drivers/scsi/qla1280.c index 0ab595c0870a..cd1b7d8c6f31 100644 --- a/drivers/scsi/qla1280.c +++ b/drivers/scsi/qla1280.c @@ -716,7 +716,6 @@ enum action { ABORT_COMMAND, DEVICE_RESET, BUS_RESET, - ADAPTER_RESET, }; @@ -898,22 +897,9 @@ qla1280_error_action(struct scsi_cmnd *cmd, enum action action) } break; - case ADAPTER_RESET: default: - if (qla1280_verbose) { - printk(KERN_INFO - "scsi(%ld): Issued ADAPTER RESET\n", - ha->host_no); - printk(KERN_INFO "scsi(%ld): I/O processing will " - "continue automatically\n", ha->host_no); - } - ha->flags.reset_active = 1; - - if (qla1280_abort_isp(ha) != 0) { /* it's dead */ - result = FAILED; - } - - ha->flags.reset_active = 0; + dprintk(1, "RESET invalid action %d\n", action); + return FAILED; } /* @@ -1011,11 +997,27 @@ qla1280_eh_bus_reset(struct scsi_cmnd *cmd) static int qla1280_eh_adapter_reset(struct scsi_cmnd *cmd) { - int rc; + int rc = SUCCESS; + struct Scsi_Host *shost = cmd->device->host; + struct scsi_qla_host *ha = (struct scsi_qla_host *)shost->hostdata; - spin_lock_irq(cmd->device->host->host_lock); - rc = qla1280_error_action(cmd, ADAPTER_RESET); - spin_unlock_irq(cmd->device->host->host_lock); + spin_lock_irq(shost->host_lock); + if (qla1280_verbose) { + printk(KERN_INFO + "scsi(%ld): Issued ADAPTER RESET\n", + ha->host_no); + printk(KERN_INFO "scsi(%ld): I/O processing will " + "continue automatically\n", ha->host_no); + } + ha->flags.reset_active = 1; + + if (qla1280_abort_isp(ha) != 0) { /* it's dead */ + rc = FAILED; + } + + ha->flags.reset_active = 0; + + spin_unlock_irq(shost->host_lock); return rc; } From patchwork Tue May 3 20:07:03 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Hannes Reinecke X-Patchwork-Id: 12836204 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 AAC7BC433FE for ; Tue, 3 May 2022 20:07:58 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S237622AbiECUL3 (ORCPT ); Tue, 3 May 2022 16:11:29 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:45622 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S238303AbiECUKz (ORCPT ); Tue, 3 May 2022 16:10:55 -0400 Received: from smtp-out1.suse.de (smtp-out1.suse.de [195.135.220.28]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id BC0B726AE3 for ; Tue, 3 May 2022 13:07:21 -0700 (PDT) Received: from relay2.suse.de (relay2.suse.de [149.44.160.134]) by smtp-out1.suse.de (Postfix) with ESMTP id 7685421881; Tue, 3 May 2022 20:07:15 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=suse.de; s=susede2_rsa; t=1651608435; 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=sgBLwKqCdIBIR8UF851m+PNnlD2mIXnnT5PFXmQDzvs=; b=nt7g7Hu8BOHWcDHYe76Q83ZlZnrzlcrLkJ01zP6yqT8qXf/6DnsWoqw1hzCVrmUAF3SkRW qTX9BQYBSDBiUsJXe+EUShUZ8e7qYQ+4IWo7275QxNWbtPEgbja2i//fF7fo0hYmXjA1Zw DVVsHHNpu/Fhcgydl/BLFBG0sk3J7F4= DKIM-Signature: v=1; a=ed25519-sha256; c=relaxed/relaxed; d=suse.de; s=susede2_ed25519; t=1651608435; 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=sgBLwKqCdIBIR8UF851m+PNnlD2mIXnnT5PFXmQDzvs=; b=LZUMEjTqkP4lvDhXS62Qkdi8fMklzo0O7qywZ7CKKH0yuefszSiwf3N7+0jN5QZlurAeSE lCbgwKaBuSVb5UDw== Received: from adalid.arch.suse.de (adalid.arch.suse.de [10.161.8.13]) by relay2.suse.de (Postfix) with ESMTP id 5D6402C172; Tue, 3 May 2022 20:07:15 +0000 (UTC) Received: by adalid.arch.suse.de (Postfix, from userid 16045) id 6DCCD51941F4; Tue, 3 May 2022 22:07:15 +0200 (CEST) From: Hannes Reinecke To: "Martin K. Petersen" Cc: Christoph Hellwig , James Bottomley , linux-scsi@vger.kernel.org, Hannes Reinecke Subject: [PATCH 23/24] megaraid: pass in NULL scb for host reset Date: Tue, 3 May 2022 22:07:03 +0200 Message-Id: <20220503200704.88003-24-hare@suse.de> X-Mailer: git-send-email 2.29.2 In-Reply-To: <20220503200704.88003-1-hare@suse.de> References: <20220503200704.88003-1-hare@suse.de> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-scsi@vger.kernel.org When calling a host reset we shouldn't rely on the command triggering the reset, so allow megaraid_abort_and_reset() to be called with a NULL scb. And drop the pointless 'bus_reset' and 'target_reset' handlers, which just call the same function as host_reset. Signed-off-by: Hannes Reinecke Reviewed-by: Christoph Hellwig --- drivers/scsi/megaraid.c | 42 ++++++++++++++++------------------------- 1 file changed, 16 insertions(+), 26 deletions(-) diff --git a/drivers/scsi/megaraid.c b/drivers/scsi/megaraid.c index a5d8cee2d510..9484632ffed6 100644 --- a/drivers/scsi/megaraid.c +++ b/drivers/scsi/megaraid.c @@ -1897,7 +1897,7 @@ megaraid_reset(struct scsi_cmnd *cmd) spin_lock_irq(&adapter->lock); - rval = megaraid_abort_and_reset(adapter, cmd, SCB_RESET); + rval = megaraid_abort_and_reset(adapter, NULL, SCB_RESET); /* * This is required here to complete any completed requests @@ -1936,7 +1936,7 @@ megaraid_abort_and_reset(adapter_t *adapter, struct scsi_cmnd *cmd, int aor) scb = list_entry(pos, scb_t, list); - if (scb->cmd == cmd) { /* Found command */ + if (!cmd || scb->cmd == cmd) { /* Found command */ scb->state |= aor; @@ -1955,31 +1955,23 @@ megaraid_abort_and_reset(adapter_t *adapter, struct scsi_cmnd *cmd, int aor) return FAILED; } - else { - - /* - * Not yet issued! Remove from the pending - * list - */ - dev_warn(&adapter->dev->dev, - "%s-[%x], driver owner\n", - (aor==SCB_ABORT) ? "ABORTING":"RESET", - scb->idx); - - mega_free_scb(adapter, scb); - - if( aor == SCB_ABORT ) { - cmd->result = (DID_ABORT << 16); - } - else { - cmd->result = (DID_RESET << 16); - } + /* + * Not yet issued! Remove from the pending + * list + */ + dev_warn(&adapter->dev->dev, + "%s-[%x], driver owner\n", + (cmd) ? "ABORTING":"RESET", + scb->idx); + mega_free_scb(adapter, scb); + if (cmd) { + cmd->result = (DID_ABORT << 16); list_add_tail(SCSI_LIST(cmd), - &adapter->completed_list); - - return SUCCESS; + &adapter->completed_list); } + + return SUCCESS; } } @@ -4113,8 +4105,6 @@ static struct scsi_host_template megaraid_template = { .sg_tablesize = MAX_SGLIST, .cmd_per_lun = DEF_CMD_PER_LUN, .eh_abort_handler = megaraid_abort, - .eh_device_reset_handler = megaraid_reset, - .eh_bus_reset_handler = megaraid_reset, .eh_host_reset_handler = megaraid_reset, .no_write_same = 1, .cmd_size = sizeof(struct megaraid_cmd_priv), From patchwork Tue May 3 20:07:04 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Hannes Reinecke X-Patchwork-Id: 12836198 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 E5BF6C433F5 for ; Tue, 3 May 2022 20:07:50 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S238116AbiECULW (ORCPT ); Tue, 3 May 2022 16:11:22 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:45634 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S238250AbiECUKz (ORCPT ); Tue, 3 May 2022 16:10:55 -0400 Received: from smtp-out1.suse.de (smtp-out1.suse.de [195.135.220.28]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id F368C26AEB for ; Tue, 3 May 2022 13:07:21 -0700 (PDT) Received: from relay2.suse.de (relay2.suse.de [149.44.160.134]) by smtp-out1.suse.de (Postfix) with ESMTP id 80D7421882; Tue, 3 May 2022 20:07:15 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=suse.de; s=susede2_rsa; t=1651608435; 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=jUW4iJfuyEoe7uHxRk74VPFf3NmtImIJ0notDLIYzb0=; b=ZbgskNfbYSdkJ3C/w5YnQ1OsqYkqL+KpfMOpAkjhL+9rA7NVFBcLa7+flfrCGztRcgKOyn Tm8ixKmR9DP/LUFgjpvLThv92jxsEndgHL6zimxLOpBoCPH1e+RMOdmasH6qjyqresEmY/ v7QnBJ5wHiSFRQoJb/ofnd7KwNgOdEc= DKIM-Signature: v=1; a=ed25519-sha256; c=relaxed/relaxed; d=suse.de; s=susede2_ed25519; t=1651608435; 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=jUW4iJfuyEoe7uHxRk74VPFf3NmtImIJ0notDLIYzb0=; b=pAd9LHPUH41EfTsFDZpkVRpxx+06Z1bgQasc00LUEueOFfzigBOEWPn83lxZqK9HyrOstk TuHYuzJQ1jsjpwCQ== Received: from adalid.arch.suse.de (adalid.arch.suse.de [10.161.8.13]) by relay2.suse.de (Postfix) with ESMTP id 658622C175; Tue, 3 May 2022 20:07:15 +0000 (UTC) Received: by adalid.arch.suse.de (Postfix, from userid 16045) id 73D5B51941F6; Tue, 3 May 2022 22:07:15 +0200 (CEST) From: Hannes Reinecke To: "Martin K. Petersen" Cc: Christoph Hellwig , James Bottomley , linux-scsi@vger.kernel.org, Hannes Reinecke , Kashyap Desai , Sathya Prakash Veerichetty , Sumit Saxena , Sreekanth Reddy Subject: [PATCH 24/24] mpi3mr: split off bus_reset function from host_reset Date: Tue, 3 May 2022 22:07:04 +0200 Message-Id: <20220503200704.88003-25-hare@suse.de> X-Mailer: git-send-email 2.29.2 In-Reply-To: <20220503200704.88003-1-hare@suse.de> References: <20220503200704.88003-1-hare@suse.de> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-scsi@vger.kernel.org SCSI EH host reset is the final callback in the escalation chain; once we reach this we need to reset the controller. As such it defeats the purpose to skip controller reset if no I/Os are pending and the RAID device is to be reset; especially after kexec there might be stale commands pending in firmware for which we have no reference whatsoever. So this patch splits off the check for pending I/O into a 'bus_reset' function, and leaves the actual controller reset to the host reset. Signed-off-by: Hannes Reinecke Reviewed-by: Christoph Hellwig Cc: Kashyap Desai Cc: Sathya Prakash Veerichetty Cc: Sumit Saxena Cc: Sreekanth Reddy --- drivers/scsi/mpi3mr/mpi3mr_os.c | 57 +++++++++++++++++++++------------ 1 file changed, 37 insertions(+), 20 deletions(-) diff --git a/drivers/scsi/mpi3mr/mpi3mr_os.c b/drivers/scsi/mpi3mr/mpi3mr_os.c index f7cd70a15ea6..31f05e9f5ee0 100644 --- a/drivers/scsi/mpi3mr/mpi3mr_os.c +++ b/drivers/scsi/mpi3mr/mpi3mr_os.c @@ -3337,20 +3337,45 @@ void mpi3mr_wait_for_host_io(struct mpi3mr_ioc *mrioc, u32 timeout) * mpi3mr_eh_host_reset - Host reset error handling callback * @scmd: SCSI command reference * - * Issue controller reset if the scmd is for a Physical Device, - * if the scmd is for RAID volume, then wait for - * MPI3MR_RAID_ERRREC_RESET_TIMEOUT and checke whether any - * pending I/Os prior to issuing reset to the controller. + * Issue controller reset * * Return: SUCCESS of successful reset else FAILED */ static int mpi3mr_eh_host_reset(struct scsi_cmnd *scmd) +{ + struct mpi3mr_ioc *mrioc = shost_priv(scmd->device->host); + int retval = FAILED, ret; + + ret = mpi3mr_soft_reset_handler(mrioc, + MPI3MR_RESET_FROM_EH_HOS, 1); + if (ret) + goto out; + + retval = SUCCESS; +out: + sdev_printk(KERN_INFO, scmd->device, + "Host reset is %s for scmd(%p)\n", + ((retval == SUCCESS) ? "SUCCESS" : "FAILED"), scmd); + + return retval; +} + +/** + * mpi3mr_eh_bus_reset - Bus reset error handling callback + * @scmd: SCSI command reference + * + * Checks whether pending I/Os are present for the RAID volume; + * if not there's no need to reset the adapter. + * + * Return: SUCCESS of successful reset else FAILED + */ +static int mpi3mr_eh_bus_reset(struct scsi_cmnd *scmd) { struct mpi3mr_ioc *mrioc = shost_priv(scmd->device->host); struct mpi3mr_stgt_priv_data *stgt_priv_data; struct mpi3mr_sdev_priv_data *sdev_priv_data; u8 dev_type = MPI3_DEVICE_DEVFORM_VD; - int retval = FAILED, ret; + int retval = FAILED; sdev_priv_data = scmd->device->hostdata; if (sdev_priv_data && sdev_priv_data->tgt_priv_data) { @@ -3360,25 +3385,16 @@ static int mpi3mr_eh_host_reset(struct scsi_cmnd *scmd) if (dev_type == MPI3_DEVICE_DEVFORM_VD) { mpi3mr_wait_for_host_io(mrioc, - MPI3MR_RAID_ERRREC_RESET_TIMEOUT); - if (!mpi3mr_get_fw_pending_ios(mrioc)) { + MPI3MR_RAID_ERRREC_RESET_TIMEOUT); + if (!mpi3mr_get_fw_pending_ios(mrioc)) retval = SUCCESS; - goto out; - } } + if (retval == FAILED) + mpi3mr_print_pending_host_io(mrioc); - mpi3mr_print_pending_host_io(mrioc); - ret = mpi3mr_soft_reset_handler(mrioc, - MPI3MR_RESET_FROM_EH_HOS, 1); - if (ret) - goto out; - - retval = SUCCESS; -out: sdev_printk(KERN_INFO, scmd->device, - "Host reset is %s for scmd(%p)\n", - ((retval == SUCCESS) ? "SUCCESS" : "FAILED"), scmd); - + "Bus reset is %s for scmd(%p)\n", + ((retval == SUCCESS) ? "SUCCESS" : "FAILED"), scmd); return retval; } @@ -4094,6 +4110,7 @@ static struct scsi_host_template mpi3mr_driver_template = { .change_queue_depth = mpi3mr_change_queue_depth, .eh_device_reset_handler = mpi3mr_eh_dev_reset, .eh_target_reset_handler = mpi3mr_eh_target_reset, + .eh_bus_reset_handler = mpi3mr_eh_bus_reset, .eh_host_reset_handler = mpi3mr_eh_host_reset, .bios_param = mpi3mr_bios_param, .map_queues = mpi3mr_map_queues,