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authorJack Wang <jinpu.wang@cloud.ionos.com>2021-06-21 07:53:39 +0200
committerJason Gunthorpe <jgg@nvidia.com>2021-06-21 21:02:21 -0300
commit6fc45596506b7a6d8c734d3f1b435318c7e7f678 (patch)
tree38b6010a32b62ed8ca91ffab941edebc7284324d /drivers/infiniband
parentdf1885a755784da3ef285f36d9230c1d090ef186 (diff)
downloadlinux-6fc45596506b7a6d8c734d3f1b435318c7e7f678.tar.bz2
RDMA/rtrs-clt: Raise MAX_SEGMENTS
As we can do fast memory registration on write, we can increase the max_segments, default to 512K. Link: https://lore.kernel.org/r/20210621055340.11789-5-jinpu.wang@ionos.com Signed-off-by: Jack Wang <jinpu.wang@cloud.ionos.com> Reviewed-by: Md Haris Iqbal <haris.iqbal@cloud.ionos.com> Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
Diffstat (limited to 'drivers/infiniband')
-rw-r--r--drivers/infiniband/ulp/rtrs/rtrs-clt.c6
1 files changed, 4 insertions, 2 deletions
diff --git a/drivers/infiniband/ulp/rtrs/rtrs-clt.c b/drivers/infiniband/ulp/rtrs/rtrs-clt.c
index 37fc0f203980..75b6b14afd37 100644
--- a/drivers/infiniband/ulp/rtrs/rtrs-clt.c
+++ b/drivers/infiniband/ulp/rtrs/rtrs-clt.c
@@ -32,6 +32,8 @@
#define RTRS_RECONNECT_SEED 8
#define FIRST_CONN 0x01
+/* limit to 128 * 4k = 512k max IO */
+#define RTRS_MAX_SEGMENTS 128
MODULE_DESCRIPTION("RDMA Transport Client");
MODULE_LICENSE("GPL");
@@ -1545,7 +1547,7 @@ static struct rtrs_clt_sess *alloc_sess(struct rtrs_clt *clt,
rdma_addr_size((struct sockaddr *)path->src));
strscpy(sess->s.sessname, clt->sessname, sizeof(sess->s.sessname));
sess->clt = clt;
- sess->max_pages_per_mr = max_segments;
+ sess->max_pages_per_mr = RTRS_MAX_SEGMENTS;
init_waitqueue_head(&sess->state_wq);
sess->state = RTRS_CLT_CONNECTING;
atomic_set(&sess->connected_cnt, 0);
@@ -2695,7 +2697,7 @@ static struct rtrs_clt *alloc_clt(const char *sessname, size_t paths_num,
clt->paths_up = MAX_PATHS_NUM;
clt->port = port;
clt->pdu_sz = pdu_sz;
- clt->max_segments = max_segments;
+ clt->max_segments = RTRS_MAX_SEGMENTS;
clt->reconnect_delay_sec = reconnect_delay_sec;
clt->max_reconnect_attempts = max_reconnect_attempts;
clt->priv = priv;