From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753912AbcHVEbn (ORCPT ); Mon, 22 Aug 2016 00:31:43 -0400 Received: from mail-oi0-f66.google.com ([209.85.218.66]:32906 "EHLO mail-oi0-f66.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751532AbcHVEbl (ORCPT ); Mon, 22 Aug 2016 00:31:41 -0400 From: Shaun Tancheff To: linux-block@vger.kernel.org, linux-scsi@vger.kernel.org, linux-kernel@vger.kernel.org Cc: Shaun Tancheff , Jens Axboe , Christoph Hellwig , "James E . J . Bottomley" , "Martin K . Petersen" , Damien Le Moal , Hannes Reinecke , Josh Bingaman , Dan Williams , Sagi Grimberg , Mike Christie , Toshi Kani , Ming Lei Subject: [PATCH v2 0/4] Integrate bio/request ZBC ops with zone cache Date: Sun, 21 Aug 2016 23:31:12 -0500 Message-Id: <20160822043116.21168-1-shaun@tancheff.com> X-Mailer: git-send-email 2.9.3 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Hi, As per Christoph's request this patch incorporates Hannes' cache of zone information. This approach is to have REQ_OP_ZONE_REPORT return data in the same format regardless of the availability of the zone cache. So if the is kernel being built with or without BLK_DEV_ZONED [and SCSI_ZBC] users of blkdev_issue_zone_report() and/or REQ_OP_ZONE_REPORT bio's will have a consistent data format to digest. Additionally it seems reasonable to allow the REQ_OP_ZONE_* to be able to indicate if the command *must* be delivered to the device [and update the zone cache] accordingly. Here REQ_META is being used as REQ_FUA can be dropped causing sd_done to be skipped. Rather than special case the current code I chose to pick an otherwise non-applicable flag. This series is based off of Linus's v4.8-rc2 and builds on top of the previous series of block layer support: Add ioctl to issue ZBC/ZAC commands via block layer Add bio/request flags to issue ZBC/ZAC commands as well as the series posted by Hannes sd_zbc: Fix handling of ZBC read after write pointer sd: Limit messages for ZBC disks capacity change sd: Implement support for ZBC devices sd: Implement new RESET_WP provisioning mode sd: configure ZBC devices ... Patches for util-linux can be found here: git@github.com:stancheff/util-linux.git v2.28.1+biof https://github.com/stancheff/util-linux/tree/v2.28.1%2Bbiof This patch is available here: https://github.com/stancheff/linux/tree/v4.8-rc2%2Bbiof.v9 git@github.com:stancheff/linux.git v4.8-rc2+biof.v9 v2: - Fully integrated bio <-> zone cache [<-> device] - Added discard -> write same for conventional zones. - Merged disparate constants into a canonical set. Shaun Tancheff (4): Enable support for Seagate HostAware drives (testing). On Discard either do Reset WP or Write Same Merge ZBC constants Integrate ZBC command requests with zone cache. block/blk-lib.c | 16 - drivers/scsi/sd.c | 111 +++-- drivers/scsi/sd.h | 49 ++- drivers/scsi/sd_zbc.c | 904 ++++++++++++++++++++++++++++++++++---- include/linux/blkdev.h | 22 +- include/scsi/scsi_proto.h | 17 - include/uapi/linux/blkzoned_api.h | 167 ++++--- 7 files changed, 1032 insertions(+), 254 deletions(-) -- 2.9.3