From patchwork Thu Sep 17 23:18:41 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Keith Busch X-Patchwork-Id: 11783717 Return-Path: Received: from mail.kernel.org (pdx-korg-mail-1.web.codeaurora.org [172.30.200.123]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id CDBFC112C for ; Thu, 17 Sep 2020 23:18:54 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id AAFB3214D8 for ; Thu, 17 Sep 2020 23:18:54 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1600384734; bh=NK+w8QmqYf/nABcVzn9HY5/sKPUjVEcVkvH9cPa0NoA=; h=From:To:Cc:Subject:Date:In-Reply-To:References:List-ID:From; b=imQpzM9wkiV8JXl9Ooa4Zpr6K1fFD8jToFY7uayn5z/RzfeBfqwhrLD+b92ePz3K8 jhUAujqhun0rPiRElfJ5v4St25nKht50fc7QarvNWu3dytJ/Hd1IjP18AYK0d/8g5y uAQDuVdXI9/D3zbKevv1EnlS8XIVvigt98VBfQvY= Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726134AbgIQXSx (ORCPT ); Thu, 17 Sep 2020 19:18:53 -0400 Received: from mail.kernel.org ([198.145.29.99]:55880 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726117AbgIQXSw (ORCPT ); Thu, 17 Sep 2020 19:18:52 -0400 Received: from dhcp-10-100-145-180.wdl.wdc.com (unknown [199.255.45.60]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPSA id 9BC4D208DB; Thu, 17 Sep 2020 23:18:51 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1600384732; bh=NK+w8QmqYf/nABcVzn9HY5/sKPUjVEcVkvH9cPa0NoA=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=iVtxeI5gG8IWEwou6juCMvirC4F1CJz5MyfCOZlYlrwq/8ZUhAuB8Hv3RaWos+O6y 4d8W0hKOyJT5Qa9TdTTbwBonySmPC+2EO3m21pKt+/me/NB2argoB1pPHm2gP9l84e q1xwb+WE99zZ5exwGEpNA1RIbOgmCPSxkWwdH8xo= From: Keith Busch To: linux-nvme@lists.infradead.org, sagi@grimberg.me, hch@lst.de, linux-block@vger.kernel.org Cc: axboe@kernel.dk, linux-scsi@vger.kernel.org, martin.petersen@oracle.com, Damien Le Moal , Johannes Thumshirn Subject: [PATCHv3 4/4] scsi: handle zone resources errors Date: Thu, 17 Sep 2020 16:18:41 -0700 Message-Id: <20200917231841.4029747-5-kbusch@kernel.org> X-Mailer: git-send-email 2.24.1 In-Reply-To: <20200917231841.4029747-1-kbusch@kernel.org> References: <20200917231841.4029747-1-kbusch@kernel.org> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-scsi@vger.kernel.org From: Damien Le Moal ZBC or ZAC disks that have a limit on the number of open zones may fail a zone open command or a write to a zone that is not already implicitly or explicitly open if the total number of open zones is already at the maximum allowed. For these operations, instead of returning the generic BLK_STS_IOERR, return BLK_STS_ZONE_OPEN_RESOURCE which is returned as -ETOOMANYREFS to the I/O issuer, allowing the device user to act appropriately on these relatively benign zone resource errors. Cc: Christoph Hellwig Cc: Johannes Thumshirn Signed-off-by: Damien Le Moal Acked-by: Martin K. Petersen --- drivers/scsi/scsi_lib.c | 9 +++++++++ 1 file changed, 9 insertions(+) diff --git a/drivers/scsi/scsi_lib.c b/drivers/scsi/scsi_lib.c index 7affaaf8b98e..c129ac6666da 100644 --- a/drivers/scsi/scsi_lib.c +++ b/drivers/scsi/scsi_lib.c @@ -758,6 +758,15 @@ static void scsi_io_completion_action(struct scsi_cmnd *cmd, int result) /* See SSC3rXX or current. */ action = ACTION_FAIL; break; + case DATA_PROTECT: + action = ACTION_FAIL; + if ((sshdr.asc == 0x0C && sshdr.ascq == 0x12) || + (sshdr.asc == 0x55 && + (sshdr.ascq == 0x0E || sshdr.ascq == 0x0F))) { + /* Insufficient zone resources */ + blk_stat = BLK_STS_ZONE_OPEN_RESOURCE; + } + break; default: action = ACTION_FAIL; break;