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-rw-r--r--net/rds/ib.h4
-rw-r--r--net/rds/ib_cm.c9
-rw-r--r--net/rds/ib_frmr.c11
3 files changed, 16 insertions, 8 deletions
diff --git a/net/rds/ib.h b/net/rds/ib.h
index f4e81214e70a..f14c26d22b27 100644
--- a/net/rds/ib.h
+++ b/net/rds/ib.h
@@ -14,7 +14,8 @@
#define RDS_IB_DEFAULT_RECV_WR 1024
#define RDS_IB_DEFAULT_SEND_WR 256
-#define RDS_IB_DEFAULT_FR_WR 512
+#define RDS_IB_DEFAULT_FR_WR 256
+#define RDS_IB_DEFAULT_FR_INV_WR 256
#define RDS_IB_DEFAULT_RETRY_COUNT 1
@@ -125,6 +126,7 @@ struct rds_ib_connection {
/* To control the number of wrs from fastreg */
atomic_t i_fastreg_wrs;
+ atomic_t i_fastunreg_wrs;
/* interrupt handling */
struct tasklet_struct i_send_tasklet;
diff --git a/net/rds/ib_cm.c b/net/rds/ib_cm.c
index b9da1e59ecc1..3002acf75766 100644
--- a/net/rds/ib_cm.c
+++ b/net/rds/ib_cm.c
@@ -382,7 +382,10 @@ static int rds_ib_setup_qp(struct rds_connection *conn)
* completion queue and send queue. This extra space is used for FRMR
* registration and invalidation work requests
*/
- fr_queue_space = (rds_ibdev->use_fastreg ? RDS_IB_DEFAULT_FR_WR : 0);
+ fr_queue_space = rds_ibdev->use_fastreg ?
+ (RDS_IB_DEFAULT_FR_WR + 1) +
+ (RDS_IB_DEFAULT_FR_INV_WR + 1)
+ : 0;
/* add the conn now so that connection establishment has the dev */
rds_ib_add_conn(rds_ibdev, conn);
@@ -444,6 +447,7 @@ static int rds_ib_setup_qp(struct rds_connection *conn)
attr.send_cq = ic->i_send_cq;
attr.recv_cq = ic->i_recv_cq;
atomic_set(&ic->i_fastreg_wrs, RDS_IB_DEFAULT_FR_WR);
+ atomic_set(&ic->i_fastunreg_wrs, RDS_IB_DEFAULT_FR_INV_WR);
/*
* XXX this can fail if max_*_wr is too large? Are we supposed
@@ -766,7 +770,8 @@ void rds_ib_conn_path_shutdown(struct rds_conn_path *cp)
wait_event(rds_ib_ring_empty_wait,
rds_ib_ring_empty(&ic->i_recv_ring) &&
(atomic_read(&ic->i_signaled_sends) == 0) &&
- (atomic_read(&ic->i_fastreg_wrs) == RDS_IB_DEFAULT_FR_WR));
+ (atomic_read(&ic->i_fastreg_wrs) == RDS_IB_DEFAULT_FR_WR) &&
+ (atomic_read(&ic->i_fastunreg_wrs) == RDS_IB_DEFAULT_FR_INV_WR));
tasklet_kill(&ic->i_send_tasklet);
tasklet_kill(&ic->i_recv_tasklet);
diff --git a/net/rds/ib_frmr.c b/net/rds/ib_frmr.c
index 66b3d6228a15..48332a6ed738 100644
--- a/net/rds/ib_frmr.c
+++ b/net/rds/ib_frmr.c
@@ -241,8 +241,8 @@ static int rds_ib_post_inv(struct rds_ib_mr *ibmr)
if (frmr->fr_state != FRMR_IS_INUSE)
goto out;
- while (atomic_dec_return(&ibmr->ic->i_fastreg_wrs) <= 0) {
- atomic_inc(&ibmr->ic->i_fastreg_wrs);
+ while (atomic_dec_return(&ibmr->ic->i_fastunreg_wrs) <= 0) {
+ atomic_inc(&ibmr->ic->i_fastunreg_wrs);
cpu_relax();
}
@@ -261,7 +261,7 @@ static int rds_ib_post_inv(struct rds_ib_mr *ibmr)
if (unlikely(ret)) {
frmr->fr_state = FRMR_IS_STALE;
frmr->fr_inv = false;
- atomic_inc(&ibmr->ic->i_fastreg_wrs);
+ atomic_inc(&ibmr->ic->i_fastunreg_wrs);
pr_err("RDS/IB: %s returned error(%d)\n", __func__, ret);
goto out;
}
@@ -289,9 +289,10 @@ void rds_ib_mr_cqe_handler(struct rds_ib_connection *ic, struct ib_wc *wc)
if (frmr->fr_inv) {
frmr->fr_state = FRMR_IS_FREE;
frmr->fr_inv = false;
+ atomic_inc(&ic->i_fastreg_wrs);
+ } else {
+ atomic_inc(&ic->i_fastunreg_wrs);
}
-
- atomic_inc(&ic->i_fastreg_wrs);
}
void rds_ib_unreg_frmr(struct list_head *list, unsigned int *nfreed,