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[173.16.223.93]) by smtp.gmail.com with ESMTPSA id n69sm2599900ita.0.2016.09.30.12.14.06 (version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Fri, 30 Sep 2016 12:14:06 -0700 (PDT) From: Shaun Tancheff To: Jens Axboe Cc: Shaun Tancheff , linux-block@vger.kernel.org, linux-scsi@vger.kernel.org, linux-kernel@vger.kernel.org, Christoph Hellwig , "Martin K . Petersen" , "James E . J . Bottomley" , Damien Le Moal , Hannes Reinecke , Michael T Lombardi Subject: [PATCH v6 4/7] block: Define zoned block device operations Date: Fri, 30 Sep 2016 14:12:33 -0500 Message-Id: <20160930191237.13695-5-shaun@tancheff.com> X-Mailer: git-send-email 2.9.3 In-Reply-To: <20160930191237.13695-1-shaun@tancheff.com> References: <20160930191237.13695-1-shaun@tancheff.com> Sender: linux-scsi-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-scsi@vger.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP From: Shaun Tancheff Define REQ_OP_ZONE_REPORT and REQ_OP_ZONE_RESET for handling zones of host-managed and host-aware zoned block devices. With with these two new operations, the total number of operations defined reaches 8 and still fits with the 3 bits definition of REQ_OP_BITS. Signed-off-by: Shaun Tancheff Signed-off-by: Damien Le Moal Reviewed-by: Christoph Hellwig Reviewed-by: Martin K. Petersen --- block/blk-core.c | 4 ++++ include/linux/blk_types.h | 2 ++ 2 files changed, 6 insertions(+) diff --git a/block/blk-core.c b/block/blk-core.c index 14d7c07..e4eda5d 100644 --- a/block/blk-core.c +++ b/block/blk-core.c @@ -1941,6 +1941,10 @@ generic_make_request_checks(struct bio *bio) case REQ_OP_WRITE_SAME: if (!bdev_write_same(bio->bi_bdev)) goto not_supported; + case REQ_OP_ZONE_REPORT: + case REQ_OP_ZONE_RESET: + if (!bdev_is_zoned(bio->bi_bdev)) + goto not_supported; break; default: break; diff --git a/include/linux/blk_types.h b/include/linux/blk_types.h index cd395ec..dd50dce 100644 --- a/include/linux/blk_types.h +++ b/include/linux/blk_types.h @@ -243,6 +243,8 @@ enum req_op { REQ_OP_SECURE_ERASE, /* request to securely erase sectors */ REQ_OP_WRITE_SAME, /* write same block many times */ REQ_OP_FLUSH, /* request for cache flush */ + REQ_OP_ZONE_REPORT, /* Get zone information */ + REQ_OP_ZONE_RESET, /* Reset a zone write pointer */ }; #define REQ_OP_BITS 3