LU-12815 socklnd: add conns_per_peer parameter

[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 737cb88..6d274a0 100644 (file)
--- a/lnet/klnds/socklnd/socklnd_modparams.c
+++ b/lnet/klnds/socklnd/socklnd_modparams.c
@@ -26,15 +26,15 @@
 #include <asm/hypervisor.h>
 #endif
 
-static int sock_timeout = 50;
+static int sock_timeout;
 module_param(sock_timeout, int, 0644);
 MODULE_PARM_DESC(sock_timeout, "dead socket timeout (seconds)");
 
-static int credits = 256;
+static int credits = DEFAULT_CREDITS;
 module_param(credits, int, 0444);
 MODULE_PARM_DESC(credits, "# concurrent sends");
 
-static int peer_credits = 8;
+static int peer_credits = DEFAULT_PEER_CREDITS;
 module_param(peer_credits, int, 0444);
 MODULE_PARM_DESC(peer_credits, "# concurrent sends to 1 peer");
 
@@ -142,6 +142,10 @@ static unsigned int zc_recv_min_nfrags = 16;
 module_param(zc_recv_min_nfrags, int, 0644);
 MODULE_PARM_DESC(zc_recv_min_nfrags, "minimum # of fragments to enable ZC recv");
 
+static unsigned int conns_per_peer = 1;
+module_param(conns_per_peer, uint, 0444);
+MODULE_PARM_DESC(conns_per_peer, "number of connections per peer");
+
 #ifdef SOCKNAL_BACKOFF
 static int backoff_init = 3;
 module_param(backoff_init, int, 0644);
@@ -201,6 +205,11 @@ int ksocknal_tunables_init(void)
        ksocknal_tunables.ksnd_zc_min_payload     = &zc_min_payload;
        ksocknal_tunables.ksnd_zc_recv            = &zc_recv;
        ksocknal_tunables.ksnd_zc_recv_min_nfrags = &zc_recv_min_nfrags;
+       if (conns_per_peer > ((1 << SOCKNAL_CONN_COUNT_MAX_BITS)-1)) {
+               CWARN("socklnd conns_per_peer is capped at %u.\n",
+                     (1 << SOCKNAL_CONN_COUNT_MAX_BITS)-1);
+       }
+       ksocknal_tunables.ksnd_conns_per_peer     = &conns_per_peer;
 
        if (enable_irq_affinity) {
                CWARN("irq_affinity is removed from socklnd because modern "