[PATCH nvme-cli 6/5] fabrics: pass in nr_write_queues
From: Sagi Grimberg <sagi@grimberg.me>
Date: 2018-12-11 10:50:06
Also in:
linux-nvme
Subsystem:
the rest · Maintainer:
Linus Torvalds
nr_write_queues specifies the number of queues additional to nr_io_queues will be connected. These queues will host write I/O (host to target payload) while nr_io_queues will host read I/O (target to host payload). Signed-off-by: Sagi Grimberg <sagi@grimberg.me> --- fabrics.c | 11 +++++++++++ 1 file changed, 11 insertions(+)
diff --git a/fabrics.c b/fabrics.c
index 93f3410a1c72..55ce2ba79c4f 100644
--- a/fabrics.c
+++ b/fabrics.c@@ -53,6 +53,7 @@ static struct config { char *hostnqn; char *hostid; int nr_io_queues; + int nr_write_queues; int queue_size; int keep_alive_tmo; int reconnect_delay;
@@ -621,6 +622,8 @@ static int build_options(char *argstr, int max_len) add_argument(&argstr, &max_len, "hostid", cfg.hostid)) || add_int_argument(&argstr, &max_len, "nr_io_queues", cfg.nr_io_queues) || + add_int_argument(&argstr, &max_len, "nr_write_queues", + cfg.nr_write_queues) || add_int_argument(&argstr, &max_len, "queue_size", cfg.queue_size) || add_int_argument(&argstr, &max_len, "keep_alive_tmo", cfg.keep_alive_tmo) ||
@@ -694,6 +697,13 @@ retry: p += len; } + if (cfg.nr_write_queues) { + len = sprintf(p, ",nr_write_queues=%d", cfg.nr_write_queues); + if (len < 0) + return -EINVAL; + p += len; + } + if (cfg.host_traddr) { len = sprintf(p, ",host_traddr=%s", cfg.host_traddr); if (len < 0)
@@ -1009,6 +1019,7 @@ int connect(const char *desc, int argc, char **argv) {"hostnqn", 'q', "LIST", CFG_STRING, &cfg.hostnqn, required_argument, "user-defined hostnqn" }, {"hostid", 'I', "LIST", CFG_STRING, &cfg.hostid, required_argument, "user-defined hostid (if default not used)"}, {"nr-io-queues", 'i', "LIST", CFG_INT, &cfg.nr_io_queues, required_argument, "number of io queues to use (default is core count)" }, + {"nr_write_queues", 'W', "LIST", CFG_INT, &cfg.nr_write_queues, required_argument, "number of write queues to use (default 0)" }, {"queue-size", 'Q', "LIST", CFG_INT, &cfg.queue_size, required_argument, "number of io queue elements to use (default 128)" }, {"keep-alive-tmo", 'k', "LIST", CFG_INT, &cfg.keep_alive_tmo, required_argument, "keep alive timeout period in seconds" }, {"reconnect-delay", 'c', "LIST", CFG_INT, &cfg.reconnect_delay, required_argument, "reconnect timeout period in seconds" },
--
2.17.1