From: Steve Wise <swise@opengridcomputing.com>
Date: Tue, 20 Sep 2016 15:02:12 +0000 (-0700)
Subject: nvme-cli/fabrics: Add reconnect-delay param to connect cmd
X-Git-Tag: v1.0~56
X-Git-Url: https://www.infradead.org/git/?a=commitdiff_plain;h=62520f9688c4bc96a4fc1dc96b14e03d6850d2f4;p=users%2Fsagi%2Fnvme-cli.git

nvme-cli/fabrics: Add reconnect-delay param to connect cmd

Added 'reconnect-delay' to 'connect' command so users can specify the
delay time, in seconds, before reconnecting due to a keep alive timeout.

usage examples:

nvme connect --reconnect-delay=30 --transport=rdma --traddr=10.0.1.14 --nqn=test-nvme
nvme connect -r 30 -t rdma -a 10.0.1.14 -n test-nvme

Signed-off-by: Steve Wise <swise@opengridcomputing.com>
Reviewed-by: Jay Freyensee <james_p_freyensee at linux.intel.com>
---

diff --git a/fabrics.c b/fabrics.c
index 45257539..dff5d6ad 100644
--- a/fabrics.c
+++ b/fabrics.c
@@ -52,6 +52,7 @@ struct config {
 	char *hostnqn;
 	char *nr_io_queues;
 	char *keep_alive_tmo;
+	char *reconnect_delay;
 	char *raw;
 	char *device;
 } cfg = { 0 };
@@ -507,6 +508,14 @@ static int build_options(char *argstr, int max_len)
 		max_len -= len;
 	}
 
+	if (cfg.reconnect_delay) {
+		len = snprintf(argstr, max_len, ",reconnect_delay=%s", cfg.reconnect_delay);
+		if (len < 0)
+			return -EINVAL;
+		argstr += len;
+		max_len -= len;
+	}
+
 	return 0;
 }
 
@@ -750,6 +759,8 @@ int connect(const char *desc, int argc, char **argv)
 		 "number of io queues to use (default is core count)" },
 		{"keep-alive-tmo", 'k', "LIST", CFG_STRING, &cfg.keep_alive_tmo, required_argument,
 			"keep alive timeout period in seconds" },
+		{"reconnect-delay", 'r', "LIST", CFG_STRING, &cfg.reconnect_delay, required_argument,
+			"reconnect timeout period in seconds" },
 		{0},
 	};