From patchwork Mon May 2 21:38:19 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Hannes Reinecke X-Patchwork-Id: 12834781 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 91C77C433EF for ; Mon, 2 May 2022 21:38:50 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1387741AbiEBVmS (ORCPT ); Mon, 2 May 2022 17:42:18 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:37746 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1387718AbiEBVmF (ORCPT ); Mon, 2 May 2022 17:42:05 -0400 Received: from smtp-out1.suse.de (smtp-out1.suse.de [195.135.220.28]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id C649BE0E8 for ; Mon, 2 May 2022 14:38:34 -0700 (PDT) Received: from relay2.suse.de (relay2.suse.de [149.44.160.134]) by smtp-out1.suse.de (Postfix) with ESMTP id 2F4B721872; Mon, 2 May 2022 21:38:33 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=suse.de; s=susede2_rsa; t=1651527513; 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=KKA7Y6oscryubyBR3VnEE1AjFXjznHKmqNPN/oWvcIg=; b=Rm6lxLzw9C5m53d7CTznm3Bt3R0jCB+DHDXH/WKn2WBNMVjPpF7K9FLoEqjUjYoopl24KX LsTILaQAPVLVAF6DGLXANGXrBJcZDBlGTJTvmeDwMM9oFHGYr5HFLzvB9sAeUx9GZz5zPr m8tNtABBoTFjtqppC+uzBHPYG58t6dk= DKIM-Signature: v=1; a=ed25519-sha256; c=relaxed/relaxed; d=suse.de; s=susede2_ed25519; t=1651527513; 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=KKA7Y6oscryubyBR3VnEE1AjFXjznHKmqNPN/oWvcIg=; b=bdxGxEhn0E35z5wK3vnZKu+S+VVW1yh6FlusDyduk+iSTtvqsawGBuMQWVHwffYU7VBsoW RVAarMhTYQrv0SCQ== Received: from adalid.arch.suse.de (adalid.arch.suse.de [10.161.8.13]) by relay2.suse.de (Postfix) with ESMTP id 29F182C16D; Mon, 2 May 2022 21:38:33 +0000 (UTC) Received: by adalid.arch.suse.de (Postfix, from userid 16045) id 27D805194122; Mon, 2 May 2022 23:38:33 +0200 (CEST) From: Hannes Reinecke To: "Martin K. Petersen" Cc: Christoph Hellwig , James Bottomley , linux-scsi@vger.kernel.org, Hannes Reinecke , Hannes Reinecke Subject: [PATCH 23/24] megaraid: pass in NULL scb for host reset Date: Mon, 2 May 2022 23:38:19 +0200 Message-Id: <20220502213820.3187-24-hare@suse.de> X-Mailer: git-send-email 2.29.2 In-Reply-To: <20220502213820.3187-1-hare@suse.de> References: <20220502213820.3187-1-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 Reviewed-by: Johannes Thumshirn --- 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),