[PATCH 1/1] nvme-cli/fabrics: Add pi_enable param to connect cmd

From: Max Gurtovoy <maxg@mellanox.com>
To: linux-nvme@lists.infradead.org, kbusch@kernel.org, hch@lst.de,
	sagi@grimberg.me, martin.petersen@oracle.com,
	jsmart2021@gmail.com, linux-rdma@vger.kernel.org
Cc: axboe@kernel.dk, vladimirk@mellanox.com, shlomin@mellanox.com,
	israelr@mellanox.com, idanb@mellanox.com, jgg@mellanox.com,
	oren@mellanox.com, maxg@mellanox.com
Subject: [PATCH 1/1] nvme-cli/fabrics: Add pi_enable param to connect cmd
Date: Fri, 27 Mar 2020 20:15:28 +0300	[thread overview]
Message-ID: <20200327171545.98970-2-maxg@mellanox.com> (raw)
In-Reply-To: <20200327171545.98970-1-maxg@mellanox.com>

From: Israel Rukshin <israelr@mellanox.com>

Added 'pi_enable' to 'connect' command so users can enable metadata support.

usage examples:
nvme connect --pi_enable --transport=rdma --traddr=10.0.1.1 --nqn=test-nvme
nvme connect -p -t rdma -a 10.0.1.1 -n test_nvme

Signed-off-by: Israel Rukshin <israelr@mellanox.com>
Reviewed-by: Max Gurtovoy <maxg@mellanox.com>
---
 fabrics.c | 14 +++++++++++++-
 1 file changed, 13 insertions(+), 1 deletion(-)

diff --git a/fabrics.c b/fabrics.c
index a112f76..1b5b3f7 100644
--- a/fabrics.c
+++ b/fabrics.c
@@ -78,6 +78,7 @@ static struct config {
 	int  disable_sqflow;
 	int  hdr_digest;
 	int  data_digest;
+	int  pi_enable;
 	bool persistent;
 	bool quiet;
 } cfg = { NULL };
@@ -851,7 +852,9 @@ static int build_options(char *argstr, int max_len, bool discover)
 	    add_bool_argument(&argstr, &max_len, "disable_sqflow",
 				cfg.disable_sqflow) ||
 	    add_bool_argument(&argstr, &max_len, "hdr_digest", cfg.hdr_digest) ||
-	    add_bool_argument(&argstr, &max_len, "data_digest", cfg.data_digest))
+	    add_bool_argument(&argstr, &max_len, "data_digest",
+				cfg.data_digest) ||
+	    add_bool_argument(&argstr, &max_len, "pi_enable", cfg.pi_enable))
 		return -EINVAL;
 
 	return 0;
@@ -980,6 +983,13 @@ retry:
 		p += len;
 	}
 
+	if (cfg.pi_enable) {
+		len = sprintf(p, ",pi_enable");
+		if (len < 0)
+			return -EINVAL;
+		p += len;
+	}
+
 	switch (e->trtype) {
 	case NVMF_TRTYPE_RDMA:
 	case NVMF_TRTYPE_TCP:
@@ -1259,6 +1269,7 @@ int discover(const char *desc, int argc, char **argv, bool connect)
 		OPT_INT("tos",             'T', &cfg.tos,             "type of service"),
 		OPT_FLAG("hdr_digest",     'g', &cfg.hdr_digest,      "enable transport protocol header digest (TCP transport)"),
 		OPT_FLAG("data_digest",    'G', &cfg.data_digest,     "enable transport protocol data digest (TCP transport)"),
+		OPT_FLAG("pi_enable",      'p', &cfg.pi_enable,       "enable metadata (T10-PI) support (default false)"),
 		OPT_INT("nr-io-queues",    'i', &cfg.nr_io_queues,    "number of io queues to use (default is core count)"),
 		OPT_INT("nr-write-queues", 'W', &cfg.nr_write_queues, "number of write queues to use (default 0)"),
 		OPT_INT("nr-poll-queues",  'P', &cfg.nr_poll_queues,  "number of poll queues to use (default 0)"),
@@ -1319,6 +1330,7 @@ int connect(const char *desc, int argc, char **argv)
 		OPT_FLAG("disable-sqflow",    'd', &cfg.disable_sqflow,    "disable controller sq flow control (default false)"),
 		OPT_FLAG("hdr-digest",        'g', &cfg.hdr_digest,        "enable transport protocol header digest (TCP transport)"),
 		OPT_FLAG("data-digest",       'G', &cfg.data_digest,       "enable transport protocol data digest (TCP transport)"),
+		OPT_FLAG("pi_enable",         'p', &cfg.pi_enable,         "enable metadata (T10-PI) support (default false)"),
 		OPT_END()
 	};
 
-- 
1.8.3.1


_______________________________________________
linux-nvme mailing list
linux-nvme@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-nvme
