CFS_MODULE_PARM(peer_credits_hiw, "i", int, 0444,
"when eagerly to return credits");
-static int peer_timeout = 0;
+static int peer_buffer_credits = 0;
+CFS_MODULE_PARM(peer_buffer_credits, "i", int, 0444,
+ "# per-peer router buffer credits");
+
+static int peer_timeout = 180;
CFS_MODULE_PARM(peer_timeout, "i", int, 0444,
"Seconds without aliveness news to declare peer dead (<=0 to disable)");
static int fmr_pool_size = 512;
CFS_MODULE_PARM(fmr_pool_size, "i", int, 0444,
- "size of the fmr pool (>= ntx)");
+ "size of the fmr pool (>= ntx / 4)");
static int fmr_flush_trigger = 384;
CFS_MODULE_PARM(fmr_flush_trigger, "i", int, 0444,
.kib_keepalive = &keepalive,
.kib_ntx = &ntx,
.kib_credits = &credits,
- .kib_peercredits = &peer_credits,
+ .kib_peertxcredits = &peer_credits,
.kib_peercredits_hiw = &peer_credits_hiw,
+ .kib_peerrtrcredits = &peer_buffer_credits,
.kib_peertimeout = &peer_timeout,
.kib_default_ipif = &ipif_name,
.kib_retry_count = &retry_count,
O2IBLND_TIMEOUT,
O2IBLND_NTX,
O2IBLND_CREDITS,
- O2IBLND_PEER_CREDITS,
+ O2IBLND_PEER_TXCREDITS,
O2IBLND_PEER_CREDITS_HIW,
+ O2IBLND_PEER_RTRCREDITS,
O2IBLND_PEER_TIMEOUT,
O2IBLND_IPIF_BASENAME,
O2IBLND_RETRY_COUNT,
#define O2IBLND_TIMEOUT CTL_UNNUMBERED
#define O2IBLND_NTX CTL_UNNUMBERED
#define O2IBLND_CREDITS CTL_UNNUMBERED
-#define O2IBLND_PEER_CREDITS CTL_UNNUMBERED
+#define O2IBLND_PEER_TXCREDITS CTL_UNNUMBERED
#define O2IBLND_PEER_CREDITS_HIW CTL_UNNUMBERED
+#define O2IBLND_PEER_RTRCREDITS CTL_UNNUMBERED
#define O2IBLND_PEER_TIMEOUT CTL_UNNUMBERED
#define O2IBLND_IPIF_BASENAME CTL_UNNUMBERED
#define O2IBLND_RETRY_COUNT CTL_UNNUMBERED
.proc_handler = &proc_dointvec
},
{
- .ctl_name = O2IBLND_PEER_CREDITS,
+ .ctl_name = O2IBLND_PEER_TXCREDITS,
.procname = "peer_credits",
.data = &peer_credits,
.maxlen = sizeof(int),
.proc_handler = &proc_dointvec
},
{
+ .ctl_name = O2IBLND_PEER_RTRCREDITS,
+ .procname = "peer_buffer_credits",
+ .data = &peer_buffer_credits,
+ .maxlen = sizeof(int),
+ .mode = 0444,
+ .proc_handler = &proc_dointvec
+ },
+ {
.ctl_name = O2IBLND_PEER_TIMEOUT,
.procname = "peer_timeout",
.data = &peer_timeout,
int
kiblnd_tunables_init (void)
{
- if (*kiblnd_tunables.kib_credits > *kiblnd_tunables.kib_ntx) {
- CERROR("Can't set credits(%d) > ntx(%d)\n",
- *kiblnd_tunables.kib_credits,
- *kiblnd_tunables.kib_ntx);
- return -EINVAL;
- }
-
if (kiblnd_translate_mtu(*kiblnd_tunables.kib_ib_mtu) < 0) {
CERROR("Invalid ib_mtu %d, expected 256/512/1024/2048/4096\n",
*kiblnd_tunables.kib_ib_mtu);
return -EINVAL;
}
- if (*kiblnd_tunables.kib_peercredits < IBLND_CREDITS_DEFAULT)
- *kiblnd_tunables.kib_peercredits = IBLND_CREDITS_DEFAULT;
+ if (*kiblnd_tunables.kib_peertxcredits < IBLND_CREDITS_DEFAULT)
+ *kiblnd_tunables.kib_peertxcredits = IBLND_CREDITS_DEFAULT;
- if (*kiblnd_tunables.kib_peercredits > IBLND_CREDITS_MAX)
- *kiblnd_tunables.kib_peercredits = IBLND_CREDITS_MAX;
+ if (*kiblnd_tunables.kib_peertxcredits > IBLND_CREDITS_MAX)
+ *kiblnd_tunables.kib_peertxcredits = IBLND_CREDITS_MAX;
- if (*kiblnd_tunables.kib_peercredits_hiw < *kiblnd_tunables.kib_peercredits / 2)
- *kiblnd_tunables.kib_peercredits_hiw = *kiblnd_tunables.kib_peercredits / 2;
+ if (*kiblnd_tunables.kib_peertxcredits > *kiblnd_tunables.kib_credits)
+ *kiblnd_tunables.kib_peertxcredits = *kiblnd_tunables.kib_credits;
- if (*kiblnd_tunables.kib_peercredits_hiw >= *kiblnd_tunables.kib_peercredits)
- *kiblnd_tunables.kib_peercredits_hiw = *kiblnd_tunables.kib_peercredits - 1;
+ if (*kiblnd_tunables.kib_peercredits_hiw < *kiblnd_tunables.kib_peertxcredits / 2)
+ *kiblnd_tunables.kib_peercredits_hiw = *kiblnd_tunables.kib_peertxcredits / 2;
+
+ if (*kiblnd_tunables.kib_peercredits_hiw >= *kiblnd_tunables.kib_peertxcredits)
+ *kiblnd_tunables.kib_peercredits_hiw = *kiblnd_tunables.kib_peertxcredits - 1;
if (*kiblnd_tunables.kib_map_on_demand < 0 ||
- *kiblnd_tunables.kib_map_on_demand >= IBLND_MAX_RDMA_FRAGS)
+ *kiblnd_tunables.kib_map_on_demand > IBLND_MAX_RDMA_FRAGS)
*kiblnd_tunables.kib_map_on_demand = 0; /* disable map-on-demand */
+ if (*kiblnd_tunables.kib_map_on_demand == 1)
+ *kiblnd_tunables.kib_map_on_demand = 2; /* don't make sense to create map if only one fragment */
+
if (*kiblnd_tunables.kib_concurrent_sends == 0) {
if (*kiblnd_tunables.kib_map_on_demand > 0 &&
*kiblnd_tunables.kib_map_on_demand <= IBLND_MAX_RDMA_FRAGS / 8)
- *kiblnd_tunables.kib_concurrent_sends = (*kiblnd_tunables.kib_peercredits) * 2;
+ *kiblnd_tunables.kib_concurrent_sends = (*kiblnd_tunables.kib_peertxcredits) * 2;
else
- *kiblnd_tunables.kib_concurrent_sends = (*kiblnd_tunables.kib_peercredits);
+ *kiblnd_tunables.kib_concurrent_sends = (*kiblnd_tunables.kib_peertxcredits);
}
- if (*kiblnd_tunables.kib_concurrent_sends > *kiblnd_tunables.kib_peercredits * 2)
- *kiblnd_tunables.kib_concurrent_sends = *kiblnd_tunables.kib_peercredits * 2;
+ if (*kiblnd_tunables.kib_concurrent_sends > *kiblnd_tunables.kib_peertxcredits * 2)
+ *kiblnd_tunables.kib_concurrent_sends = *kiblnd_tunables.kib_peertxcredits * 2;
- if (*kiblnd_tunables.kib_concurrent_sends < *kiblnd_tunables.kib_peercredits / 2)
- *kiblnd_tunables.kib_concurrent_sends = *kiblnd_tunables.kib_peercredits / 2;
+ if (*kiblnd_tunables.kib_concurrent_sends < *kiblnd_tunables.kib_peertxcredits / 2)
+ *kiblnd_tunables.kib_concurrent_sends = *kiblnd_tunables.kib_peertxcredits / 2;
- if (*kiblnd_tunables.kib_concurrent_sends < *kiblnd_tunables.kib_peercredits) {
+ if (*kiblnd_tunables.kib_concurrent_sends < *kiblnd_tunables.kib_peertxcredits) {
CWARN("Concurrent sends %d is lower than message queue size: %d, "
"performance may drop slightly.\n",
- *kiblnd_tunables.kib_concurrent_sends, *kiblnd_tunables.kib_peercredits);
+ *kiblnd_tunables.kib_concurrent_sends, *kiblnd_tunables.kib_peertxcredits);
}
kiblnd_sysctl_init();