summaryrefslogtreecommitdiffstats
path: root/drivers/infiniband/core/nldev.c
diff options
context:
space:
mode:
authorAharon Landau <aharonl@nvidia.com>2021-10-08 15:24:31 +0300
committerJason Gunthorpe <jgg@nvidia.com>2021-10-12 12:48:05 -0300
commit0dc89684605e8b60af645988d3e0d80a57b6e937 (patch)
tree8dda40e1b38c27ae722a896322d78a83eae79d9f /drivers/infiniband/core/nldev.c
parent0a0800ce2a6a4d58d73f712f1c0780974877babf (diff)
downloadlinux-0dc89684605e8b60af645988d3e0d80a57b6e937.tar.bz2
RDMA/counter: Add an is_disabled field in struct rdma_hw_stats
Add a bitmap in rdma_hw_stat structure, with each bit indicates whether the corresponding counter is currently disabled or not. By default hwcounters are enabled. Link: https://lore.kernel.org/r/20211008122439.166063-6-markzhang@nvidia.com Signed-off-by: Aharon Landau <aharonl@nvidia.com> Signed-off-by: Leon Romanovsky <leonro@nvidia.com> Signed-off-by: Mark Zhang <markzhang@nvidia.com> Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
Diffstat (limited to 'drivers/infiniband/core/nldev.c')
-rw-r--r--drivers/infiniband/core/nldev.c11
1 files changed, 10 insertions, 1 deletions
diff --git a/drivers/infiniband/core/nldev.c b/drivers/infiniband/core/nldev.c
index 3f6b98a87566..67519730b1ac 100644
--- a/drivers/infiniband/core/nldev.c
+++ b/drivers/infiniband/core/nldev.c
@@ -968,15 +968,21 @@ static int fill_stat_counter_hwcounters(struct sk_buff *msg,
if (!table_attr)
return -EMSGSIZE;
- for (i = 0; i < st->num_counters; i++)
+ mutex_lock(&st->lock);
+ for (i = 0; i < st->num_counters; i++) {
+ if (test_bit(i, st->is_disabled))
+ continue;
if (rdma_nl_stat_hwcounter_entry(msg, st->descs[i].name,
st->value[i]))
goto err;
+ }
+ mutex_unlock(&st->lock);
nla_nest_end(msg, table_attr);
return 0;
err:
+ mutex_unlock(&st->lock);
nla_nest_cancel(msg, table_attr);
return -EMSGSIZE;
}
@@ -2104,6 +2110,9 @@ static int stat_get_doit_default_counter(struct sk_buff *skb,
goto err_stats;
}
for (i = 0; i < num_cnts; i++) {
+ if (test_bit(i, stats->is_disabled))
+ continue;
+
v = stats->value[i] +
rdma_counter_get_hwstat_value(device, port, i);
if (rdma_nl_stat_hwcounter_entry(msg,