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| author | Jack Wang <jinpu.wang@cloud.ionos.com> | 2021-03-25 16:33:05 +0100 |
|---|---|---|
| committer | Jason Gunthorpe <jgg@nvidia.com> | 2021-04-01 15:59:46 -0300 |
| commit | 0633e23771e0ac84b5e8b3c20e0b4640e29d720b (patch) | |
| tree | 1802a8847e4f5f2f2a6828f48c0860a1e1db8333 /drivers/infiniband/ulp | |
| parent | 11b74cbf8ea50f781dde4fd2a6003c86ce19285a (diff) | |
| download | linux-0633e23771e0ac84b5e8b3c20e0b4640e29d720b.tar.bz2 | |
RDMA/rtrs-clt: Cap max_io_size
Max io size is limited by both remote buffer size and the max fr pages per
mr.
Link: https://lore.kernel.org/r/20210325153308.1214057-20-gi-oh.kim@ionos.com
Signed-off-by: Jack Wang <jinpu.wang@ionos.com>
Reviewed-by: Md Haris Iqbal <haris.iqbal@ionos.com>
Signed-off-by: Gioh Kim <gi-oh.kim@ionos.com>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
Diffstat (limited to 'drivers/infiniband/ulp')
| -rw-r--r-- | drivers/infiniband/ulp/rtrs/rtrs-clt.c | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/drivers/infiniband/ulp/rtrs/rtrs-clt.c b/drivers/infiniband/ulp/rtrs/rtrs-clt.c index 279d60a96dc9..64990df81937 100644 --- a/drivers/infiniband/ulp/rtrs/rtrs-clt.c +++ b/drivers/infiniband/ulp/rtrs/rtrs-clt.c @@ -2901,7 +2901,9 @@ int rtrs_clt_query(struct rtrs_clt *clt, struct rtrs_attrs *attr) return -ECOMM; attr->queue_depth = clt->queue_depth; - attr->max_io_size = clt->max_io_size; + /* Cap max_io_size to min of remote buffer size and the fr pages */ + attr->max_io_size = min_t(int, clt->max_io_size, + clt->max_segments * SZ_4K); return 0; } |