This command can be used to force PMD threads to reload
and apply new configuration.
Signed-off-by: Ilya Maximets <i.maxim...@samsung.com>
---
NEWS | 2 ++
lib/dpif-netdev.c | 41 +++++++++++++++++++++++++++++++++++++++++
vswitchd/ovs-vswitchd.8.in | 3 +++
3 files changed, 46 insertions(+)
diff --git a/NEWS b/NEWS
index 4e81cad..817cba1 100644
--- a/NEWS
+++ b/NEWS
@@ -24,6 +24,8 @@ Post-v2.5.0
Old 'other_config:n-dpdk-rxqs' is no longer supported.
* New appctl command 'dpif-netdev/pmd-rxq-show' to check the port/rxq
assignment.
+ * New appctl command 'dpif-netdev/pmd-reconfigure' to force
+ reconfiguration of PMD threads.
* Type of log messages from PMD threads changed from INFO to DBG.
* QoS functionality with sample egress-policer implementation.
* The mechanism for configuring DPDK has changed to use database
diff --git a/lib/dpif-netdev.c b/lib/dpif-netdev.c
index 73aff8a..5ad6845 100644
--- a/lib/dpif-netdev.c
+++ b/lib/dpif-netdev.c
@@ -532,6 +532,8 @@ static void dp_netdev_add_port_tx_to_pmd(struct
dp_netdev_pmd_thread *pmd,
static void dp_netdev_add_rxq_to_pmd(struct dp_netdev_pmd_thread *pmd,
struct dp_netdev_port *port,
struct netdev_rxq *rx);
+static void reconfigure_pmd_threads(struct dp_netdev *dp)
+ OVS_REQUIRES(dp->port_mutex);
static struct dp_netdev_pmd_thread *
dp_netdev_less_loaded_pmd_on_numa(struct dp_netdev *dp, int numa_id);
static void dp_netdev_reset_pmd_threads(struct dp_netdev *dp)
@@ -796,6 +798,43 @@ dpif_netdev_pmd_info(struct unixctl_conn *conn, int argc,
const char *argv[],
unixctl_command_reply(conn, ds_cstr(&reply));
ds_destroy(&reply);
}
+
+static void
+dpif_netdev_pmd_reconfigure(struct unixctl_conn *conn, int argc,
+ const char *argv[], void *aux OVS_UNUSED)
+{
+ struct ds reply = DS_EMPTY_INITIALIZER;
+ struct dp_netdev *dp = NULL;
+
+ if (argc > 2) {
+ unixctl_command_reply_error(conn, "Invalid argument");
+ return;
+ }
+
+ ovs_mutex_lock(&dp_netdev_mutex);
+
+ if (argc == 2) {
+ dp = shash_find_data(&dp_netdevs, argv[1]);
+ } else if (shash_count(&dp_netdevs) == 1) {
+ /* There's only one datapath */
+ dp = shash_first(&dp_netdevs)->data;
+ }
+
+ if (!dp) {
+ unixctl_command_reply_error(conn,
+ "please specify an existing datapath");
+ goto exit;
+ }
+
+ ovs_mutex_lock(&dp->port_mutex);
+ reconfigure_pmd_threads(dp);
+ unixctl_command_reply(conn, ds_cstr(&reply));
+ ds_destroy(&reply);
+ ovs_mutex_unlock(&dp->port_mutex);
+exit:
+ ovs_mutex_unlock(&dp_netdev_mutex);
+}
+
static int
dpif_netdev_init(void)
@@ -813,6 +852,8 @@ dpif_netdev_init(void)
unixctl_command_register("dpif-netdev/pmd-rxq-show", "[dp]",
0, 1, dpif_netdev_pmd_info,
(void *)&poll_aux);
+ unixctl_command_register("dpif-netdev/pmd-reconfigure", "[dp]",
+ 0, 1, dpif_netdev_pmd_reconfigure, NULL);
return 0;
}
diff --git a/vswitchd/ovs-vswitchd.8.in b/vswitchd/ovs-vswitchd.8.in
index 3dacfc3..b181918 100644
--- a/vswitchd/ovs-vswitchd.8.in
+++ b/vswitchd/ovs-vswitchd.8.in
@@ -262,6 +262,9 @@ bridge statistics, only the values shown by the above
command.
.IP "\fBdpif-netdev/pmd-rxq-show\fR [\fIdp\fR]"
For each pmd thread of the datapath \fIdp\fR shows list of queue-ids with
port names, which this thread polls.
+.IP "\fBdpif-netdev/pmd-reconfigure\fR [\fIdp\fR]"
+This command can be used to force PMD threads to reload and apply new
+configuration.
.
.so ofproto/ofproto-dpif-unixctl.man
.so ofproto/ofproto-unixctl.man
--
2.5.0
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