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authorKamal Heib <kamalh@mellanox.com>2016-09-12 19:16:22 +0300
committerDoug Ledford <dledford@redhat.com>2016-09-16 14:14:08 -0400
commit69d269d38910e697e461ec5677368f57d2046cbe (patch)
treead2395cd655aa43b89f146e6c4ed4259fd7f2d89
parent8ec07bf8a8b57d6c58927a16a0a22c0115cf2855 (diff)
downloadlinux-stericsson-69d269d38910e697e461ec5677368f57d2046cbe.tar.gz
IB/mlx4: Diagnostic HW counters are not supported in slave mode
Modify the mlx4_ib_diag_counters() to avoid the following error in the hypervisor when the slave tries to query the hardware counters in SR-IOV mode. mlx4_core 0000:81:00.0: Unknown command:0x30 accepted from slave:1 Fixes: 3f85f2aaabf7 ("IB/mlx4: Add diagnostic hardware counters") Signed-off-by: Kamal Heib <kamalh@mellanox.com> Signed-off-by: Leon Romanovsky <leon@kernel.org> Signed-off-by: Doug Ledford <dledford@redhat.com>
-rw-r--r--drivers/infiniband/hw/mlx4/main.c3
1 files changed, 3 insertions, 0 deletions
diff --git a/drivers/infiniband/hw/mlx4/main.c b/drivers/infiniband/hw/mlx4/main.c
index 2af44c2de262..87ba9bca4181 100644
--- a/drivers/infiniband/hw/mlx4/main.c
+++ b/drivers/infiniband/hw/mlx4/main.c
@@ -2202,6 +2202,9 @@ static int mlx4_ib_alloc_diag_counters(struct mlx4_ib_dev *ibdev)
bool per_port = !!(ibdev->dev->caps.flags2 &
MLX4_DEV_CAP_FLAG2_DIAG_PER_PORT);
+ if (mlx4_is_slave(ibdev->dev))
+ return 0;
+
for (i = 0; i < MLX4_DIAG_COUNTERS_TYPES; i++) {
/* i == 1 means we are building port counters */
if (i && !per_port)