diff options
| author | Steve Wise <swise@opengridcomputing.com> | 2009-04-09 18:09:39 +0400 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2009-04-10 04:21:17 +0400 |
| commit | 7b70d0336da777c00395cc7a503497c2cdabd1a8 (patch) | |
| tree | 60da1fba7bdfb7d905ab0fe9b23b5289f068265f /net/rds/ib_send.c | |
| parent | d39e0602bb987133321d358d9b837d67c27b223d (diff) | |
| download | linux-7b70d0336da777c00395cc7a503497c2cdabd1a8.tar.xz | |
RDS/IW+IB: Allow max credit advertise window.
Fix hack that restricts the credit advertisement to 127.
Signed-off-by: Steve Wise <swise@opengridcomputing.com>
Signed-off-by: Andy Grover <andy.grover@oracle.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/rds/ib_send.c')
| -rw-r--r-- | net/rds/ib_send.c | 8 |
1 files changed, 4 insertions, 4 deletions
diff --git a/net/rds/ib_send.c b/net/rds/ib_send.c index fa684b7fc748..23bf830db2d5 100644 --- a/net/rds/ib_send.c +++ b/net/rds/ib_send.c @@ -311,7 +311,7 @@ void rds_ib_send_cq_comp_handler(struct ib_cq *cq, void *context) * and using atomic_cmpxchg when updating the two counters. */ int rds_ib_send_grab_credits(struct rds_ib_connection *ic, - u32 wanted, u32 *adv_credits, int need_posted) + u32 wanted, u32 *adv_credits, int need_posted, int max_posted) { unsigned int avail, posted, got = 0, advertise; long oldval, newval; @@ -351,7 +351,7 @@ try_again: * available. */ if (posted && (got || need_posted)) { - advertise = min_t(unsigned int, posted, RDS_MAX_ADV_CREDIT); + advertise = min_t(unsigned int, posted, max_posted); newval -= IB_SET_POST_CREDITS(advertise); } @@ -498,7 +498,7 @@ int rds_ib_xmit(struct rds_connection *conn, struct rds_message *rm, credit_alloc = work_alloc; if (ic->i_flowctl) { - credit_alloc = rds_ib_send_grab_credits(ic, work_alloc, &posted, 0); + credit_alloc = rds_ib_send_grab_credits(ic, work_alloc, &posted, 0, RDS_MAX_ADV_CREDIT); adv_credits += posted; if (credit_alloc < work_alloc) { rds_ib_ring_unalloc(&ic->i_send_ring, work_alloc - credit_alloc); @@ -571,7 +571,7 @@ int rds_ib_xmit(struct rds_connection *conn, struct rds_message *rm, /* * Update adv_credits since we reset the ACK_REQUIRED bit. */ - rds_ib_send_grab_credits(ic, 0, &posted, 1); + rds_ib_send_grab_credits(ic, 0, &posted, 1, RDS_MAX_ADV_CREDIT - adv_credits); adv_credits += posted; BUG_ON(adv_credits > 255); } else if (ic->i_rm != rm) |