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authorMark Zhang <markz@mellanox.com>2019-08-07 13:18:19 +0300
committerDoug Ledford <dledford@redhat.com>2019-08-07 16:09:23 -0400
commitd97de8887a12c598abc4d2e4e57a54c1f030e112 (patch)
tree72ab0466600d3e6b076b9e2366f55f903dbf8f62 /drivers/infiniband/core/counters.c
parentIB/mlx5: Fix implicit MR release flow (diff)
downloadlinux-dev-d97de8887a12c598abc4d2e4e57a54c1f030e112.tar.xz
linux-dev-d97de8887a12c598abc4d2e4e57a54c1f030e112.zip
RDMA/counter: Prevent QP counter binding if counters unsupported
In case of rdma_counter_init() fails, counter allocation and QP bind should not be allowed. Fixes: 413d3347503b ("RDMA/counter: Add set/clear per-port auto mode support") Fixes: 1bd8e0a9d0fd ("RDMA/counter: Allow manual mode configuration support") Signed-off-by: Mark Zhang <markz@mellanox.com> Reviewed-by: Parav Pandit <parav@mellanox.com> Signed-off-by: Leon Romanovsky <leonro@mellanox.com> Link: https://lore.kernel.org/r/20190807101819.7581-1-leon@kernel.org Signed-off-by: Doug Ledford <dledford@redhat.com>
Diffstat (limited to 'drivers/infiniband/core/counters.c')
-rw-r--r--drivers/infiniband/core/counters.c6
1 files changed, 6 insertions, 0 deletions
diff --git a/drivers/infiniband/core/counters.c b/drivers/infiniband/core/counters.c
index 45d5164e9574..b79890739a2c 100644
--- a/drivers/infiniband/core/counters.c
+++ b/drivers/infiniband/core/counters.c
@@ -38,6 +38,9 @@ int rdma_counter_set_auto_mode(struct ib_device *dev, u8 port,
int ret;
port_counter = &dev->port_data[port].port_counter;
+ if (!port_counter->hstats)
+ return -EOPNOTSUPP;
+
mutex_lock(&port_counter->lock);
if (on) {
ret = __counter_set_mode(&port_counter->mode,
@@ -509,6 +512,9 @@ int rdma_counter_bind_qpn_alloc(struct ib_device *dev, u8 port,
if (!rdma_is_port_valid(dev, port))
return -EINVAL;
+ if (!dev->port_data[port].port_counter.hstats)
+ return -EOPNOTSUPP;
+
qp = rdma_counter_get_qp(dev, qp_num);
if (!qp)
return -ENOENT;