LU-56 ksocklnd: CPT affinity socklnd

[fs/lustre-release.git] / lnet / klnds / socklnd / socklnd_modparams.c

diff --git a/lnet/klnds/socklnd/socklnd_modparams.c b/lnet/klnds/socklnd/socklnd_modparams.c
index 68e7fc0..a29e090 100644 (file)
--- a/lnet/klnds/socklnd/socklnd_modparams.c
+++ b/lnet/klnds/socklnd/socklnd_modparams.c
@@ -41,6 +41,12 @@ static int peer_timeout = 180;
 CFS_MODULE_PARM(peer_timeout, "i", int, 0444,
                 "Seconds without aliveness news to declare peer dead (<=0 to disable)");
 
+/* Number of daemons in each thread pool which is percpt,
+ * we will estimate reasonable value based on CPUs if it's not set. */
+static unsigned int nscheds;
+CFS_MODULE_PARM(nscheds, "i", int, 0444,
+               "# scheduler daemons in each pool while starting");
+
 static int nconnds = 4;
 CFS_MODULE_PARM(nconnds, "i", int, 0444,
                 "# connection daemons while starting");
@@ -172,6 +178,7 @@ int ksocknal_tunables_init(void)
 
         /* initialize ksocknal_tunables structure */
         ksocknal_tunables.ksnd_timeout            = &sock_timeout;
+       ksocknal_tunables.ksnd_nscheds            = &nscheds;
         ksocknal_tunables.ksnd_nconnds            = &nconnds;
         ksocknal_tunables.ksnd_nconnds_max        = &nconnds_max;
         ksocknal_tunables.ksnd_min_reconnectms    = &min_reconnectms;
@@ -199,6 +206,12 @@ int ksocknal_tunables_init(void)
         ksocknal_tunables.ksnd_zc_recv_min_nfrags = &zc_recv_min_nfrags;
 
 #ifdef CPU_AFFINITY
+       if (enable_irq_affinity) {
+               CWARN("irq_affinity is removed from socklnd because modern "
+                     "computer always has fast CPUs and more cores than "
+                     "# NICs, although you still can set irq_affinity by "
+                     "another way, please check manual for details.\n");
+       }
         ksocknal_tunables.ksnd_irq_affinity       = &enable_irq_affinity;
 #endif