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(mtr-vdi-031.wap.labs.mlnx [10.209.102.136]) by labmailer.mlnx (8.13.8/8.13.8) with ESMTP id xA5GKQlw013132; Tue, 5 Nov 2019 18:20:27 +0200 From: Max Gurtovoy To: linux-nvme@lists.infradead.org, kbusch@kernel.org, hch@lst.de, sagi@grimberg.me Subject: [PATCH 01/15] nvme-fabrics: allow user enabling metadata/T10-PI support Date: Tue, 5 Nov 2019 18:20:12 +0200 Message-Id: <20191105162026.183901-3-maxg@mellanox.com> X-Mailer: git-send-email 2.21.0 In-Reply-To: <20191105162026.183901-1-maxg@mellanox.com> References: <20191105162026.183901-1-maxg@mellanox.com> MIME-Version: 1.0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20191105_082039_407823_DCDA22A8 X-CRM114-Status: UNSURE ( 8.28 ) X-CRM114-Notice: Please train this message. X-BeenThere: linux-nvme@lists.infradead.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: vladimirk@mellanox.com, idanb@mellanox.com, israelr@mellanox.com, shlomin@mellanox.com, oren@mellanox.com, maxg@mellanox.com Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "Linux-nvme" Errors-To: linux-nvme-bounces+linux-nvme=archiver.kernel.org@lists.infradead.org From: Israel Rukshin Preparation for adding metadata (T10-PI) over fabric support. This will allow end-to-end protection information passthrough and validation for NVMe over Fabric. Signed-off-by: Israel Rukshin Reviewed-by: Max Gurtovoy --- drivers/nvme/host/fabrics.c | 5 +++++ drivers/nvme/host/fabrics.h | 3 +++ 2 files changed, 8 insertions(+) diff --git a/drivers/nvme/host/fabrics.c b/drivers/nvme/host/fabrics.c index 74b8818..0a05eff 100644 --- a/drivers/nvme/host/fabrics.c +++ b/drivers/nvme/host/fabrics.c @@ -612,6 +612,7 @@ bool __nvmf_check_ready(struct nvme_ctrl *ctrl, struct request *rq, { NVMF_OPT_NR_WRITE_QUEUES, "nr_write_queues=%d" }, { NVMF_OPT_NR_POLL_QUEUES, "nr_poll_queues=%d" }, { NVMF_OPT_TOS, "tos=%d" }, + { NVMF_OPT_PI_ENABLE, "pi_enable" }, { NVMF_OPT_ERR, NULL } }; @@ -634,6 +635,7 @@ static int nvmf_parse_options(struct nvmf_ctrl_options *opts, opts->hdr_digest = false; opts->data_digest = false; opts->tos = -1; /* < 0 == use transport default */ + opts->pi_enable = false; options = o = kstrdup(buf, GFP_KERNEL); if (!options) @@ -867,6 +869,9 @@ static int nvmf_parse_options(struct nvmf_ctrl_options *opts, } opts->tos = token; break; + case NVMF_OPT_PI_ENABLE: + opts->pi_enable = true; + break; default: pr_warn("unknown parameter or missing value '%s' in ctrl creation request\n", p); diff --git a/drivers/nvme/host/fabrics.h b/drivers/nvme/host/fabrics.h index 93f08d7..fbb7a31 100644 --- a/drivers/nvme/host/fabrics.h +++ b/drivers/nvme/host/fabrics.h @@ -56,6 +56,7 @@ enum { NVMF_OPT_NR_WRITE_QUEUES = 1 << 17, NVMF_OPT_NR_POLL_QUEUES = 1 << 18, NVMF_OPT_TOS = 1 << 19, + NVMF_OPT_PI_ENABLE = 1 << 20, }; /** @@ -89,6 +90,7 @@ enum { * @nr_write_queues: number of queues for write I/O * @nr_poll_queues: number of queues for polling I/O * @tos: type of service + * @pi_enable: Enable metadata (T10-PI) support */ struct nvmf_ctrl_options { unsigned mask; @@ -111,6 +113,7 @@ struct nvmf_ctrl_options { unsigned int nr_write_queues; unsigned int nr_poll_queues; int tos; + bool pi_enable; }; /* -- 1.8.3.1 _______________________________________________ Linux-nvme mailing list Linux-nvme@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-nvme