From 20d44e86321299f61bb782a39aaa30f579823f58 Mon Sep 17 00:00:00 2001 From: Sagi Grimberg Date: Mon, 3 Dec 2018 17:52:13 -0800 Subject: nvme-fabrics: allow user passing data digest Data digest is a nvme-tcp specific feature, but nothing prevents other transports reusing the concept so do not associate with tcp transport solely. Signed-off-by: Sagi Grimberg Signed-off-by: Christoph Hellwig --- drivers/nvme/host/fabrics.c | 5 +++++ drivers/nvme/host/fabrics.h | 2 ++ 2 files changed, 7 insertions(+) (limited to 'drivers/nvme/host') diff --git a/drivers/nvme/host/fabrics.c b/drivers/nvme/host/fabrics.c index 4272f8a95db3..9c62c6838b76 100644 --- a/drivers/nvme/host/fabrics.c +++ b/drivers/nvme/host/fabrics.c @@ -615,6 +615,7 @@ static const match_table_t opt_tokens = { { NVMF_OPT_DUP_CONNECT, "duplicate_connect" }, { NVMF_OPT_DISABLE_SQFLOW, "disable_sqflow" }, { NVMF_OPT_HDR_DIGEST, "hdr_digest" }, + { NVMF_OPT_DATA_DIGEST, "data_digest" }, { NVMF_OPT_ERR, NULL } }; @@ -635,6 +636,7 @@ static int nvmf_parse_options(struct nvmf_ctrl_options *opts, opts->kato = NVME_DEFAULT_KATO; opts->duplicate_connect = false; opts->hdr_digest = false; + opts->data_digest = false; options = o = kstrdup(buf, GFP_KERNEL); if (!options) @@ -832,6 +834,9 @@ static int nvmf_parse_options(struct nvmf_ctrl_options *opts, case NVMF_OPT_HDR_DIGEST: opts->hdr_digest = true; break; + case NVMF_OPT_DATA_DIGEST: + opts->data_digest = 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 a6127f1a9e8e..524a02a67817 100644 --- a/drivers/nvme/host/fabrics.h +++ b/drivers/nvme/host/fabrics.h @@ -60,6 +60,7 @@ enum { NVMF_OPT_DUP_CONNECT = 1 << 13, NVMF_OPT_DISABLE_SQFLOW = 1 << 14, NVMF_OPT_HDR_DIGEST = 1 << 15, + NVMF_OPT_DATA_DIGEST = 1 << 16, }; /** @@ -105,6 +106,7 @@ struct nvmf_ctrl_options { int max_reconnects; bool disable_sqflow; bool hdr_digest; + bool data_digest; }; /* -- cgit v1.2.3