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RDMA/nes: Increase rexmit timeout interval 

Under heavy load with large cluster testing, it may take longer to
receive a response to MPA requests.  Change the driver to wait longer
after each rexmit to max time value.

Signed-off-by: Faisal Latif <faisal.latif@intel.com>
Signed-off-by: Roland Dreier <rolandd@cisco.com>
This commit is contained in:
Faisal Latif 2009-04-27 13:39:36 -07:00 committed by Roland Dreier
parent c11470f9f4
commit 4e9c390036
2 changed files with 6 additions and 1 deletions
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6
drivers/infiniband/hw/nes/nes_cm.c
View File

@ -541,6 +541,7 @@ static void nes_cm_timer_tick(unsigned long pass)
struct list_head *list_node;
struct nes_cm_core *cm_core = g_cm_core;
u32 settimer = 0;
unsigned long timetosend;
int ret = NETDEV_TX_OK;
struct list_head timer_list;
@ -645,8 +646,11 @@ static void nes_cm_timer_tick(unsigned long pass)
send_entry->retrycount);
if (send_entry->send_retrans) {
send_entry->retranscount--;
timetosend = (NES_RETRY_TIMEOUT <<
(NES_DEFAULT_RETRANS - send_entry->retranscount));
send_entry->timetosend = jiffies +
NES_RETRY_TIMEOUT;
min(timetosend, NES_MAX_TIMEOUT);
if (nexttimeout > send_entry->timetosend ||
!settimer) {
nexttimeout = send_entry->timetosend;

1
drivers/infiniband/hw/nes/nes_cm.h
View File

@ -149,6 +149,7 @@ struct nes_timer_entry {
#endif
#define NES_SHORT_TIME (10)
#define NES_LONG_TIME (2000*HZ/1000)
#define NES_MAX_TIMEOUT ((unsigned long) (12*HZ))
#define NES_CM_HASHTABLE_SIZE 1024
#define NES_CM_TCP_TIMER_INTERVAL 3000