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path: root/drivers/infiniband/core/counters.c
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Diffstat (limited to 'drivers/infiniband/core/counters.c')
-rw-r--r--drivers/infiniband/core/counters.c27
1 files changed, 17 insertions, 10 deletions
diff --git a/drivers/infiniband/core/counters.c b/drivers/infiniband/core/counters.c
index 01faef7bc061..af8c85d18e62 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,
@@ -146,13 +149,11 @@ static bool auto_mode_match(struct ib_qp *qp, struct rdma_counter *counter,
struct auto_mode_param *param = &counter->mode.param;
bool match = true;
- if (rdma_is_kernel_res(&counter->res) != rdma_is_kernel_res(&qp->res))
+ if (!rdma_is_visible_in_pid_ns(&qp->res))
return false;
- /* Ensure that counter belong to right PID */
- if (!rdma_is_kernel_res(&counter->res) &&
- !rdma_is_kernel_res(&qp->res) &&
- (task_pid_vnr(counter->res.task) != current->pid))
+ /* Ensure that counter belongs to the right PID */
+ if (task_pid_nr(counter->res.task) != task_pid_nr(qp->res.task))
return false;
if (auto_mask & RDMA_COUNTER_MASK_QP_TYPE)
@@ -393,6 +394,9 @@ u64 rdma_counter_get_hwstat_value(struct ib_device *dev, u8 port, u32 index)
u64 sum;
port_counter = &dev->port_data[port].port_counter;
+ if (!port_counter->hstats)
+ return 0;
+
sum = get_running_counters_hwstat_sum(dev, port, index);
sum += port_counter->hstats->value[index];
@@ -418,7 +422,7 @@ static struct ib_qp *rdma_counter_get_qp(struct ib_device *dev, u32 qp_num)
return qp;
err:
- rdma_restrack_put(&qp->res);
+ rdma_restrack_put(res);
return NULL;
}
@@ -506,6 +510,9 @@ 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;
@@ -594,7 +601,7 @@ void rdma_counter_init(struct ib_device *dev)
struct rdma_port_counter *port_counter;
u32 port;
- if (!dev->ops.alloc_hw_stats || !dev->port_data)
+ if (!dev->port_data)
return;
rdma_for_each_port(dev, port) {
@@ -602,6 +609,9 @@ void rdma_counter_init(struct ib_device *dev)
port_counter->mode.mode = RDMA_COUNTER_MODE_NONE;
mutex_init(&port_counter->lock);
+ if (!dev->ops.alloc_hw_stats)
+ continue;
+
port_counter->hstats = dev->ops.alloc_hw_stats(dev, port);
if (!port_counter->hstats)
goto fail;
@@ -624,9 +634,6 @@ void rdma_counter_release(struct ib_device *dev)
struct rdma_port_counter *port_counter;
u32 port;
- if (!dev->ops.alloc_hw_stats)
- return;
-
rdma_for_each_port(dev, port) {
port_counter = &dev->port_data[port].port_counter;
kfree(port_counter->hstats);