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Commit 20d44e86 authored by Sagi Grimberg's avatar Sagi Grimberg Committed by Christoph Hellwig
Browse files

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: default avatarSagi Grimberg <sagi@lightbitslabs.com>
Signed-off-by: default avatarChristoph Hellwig <hch@lst.de>
parent 3b49fa80

drivers/nvme/host/fabrics.c

+5 −0
Original line number Diff line number Diff line
@@ -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);

drivers/nvme/host/fabrics.h

+2 −0
Original line number Diff line number Diff line
@@ -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;

};



/*