diff mbox

[rdma-rc,5/7] IB/mlx4: Diagnostic HW counters are not supported in slave mode

Message ID 1473696984-6161-6-git-send-email-leon@kernel.org (mailing list archive)
State Accepted
Headers show

Commit Message

Leon Romanovsky Sept. 12, 2016, 4:16 p.m. UTC 
From: Kamal Heib <kamalh@mellanox.com>

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>
---
 drivers/infiniband/hw/mlx4/main.c | 3 +++
 1 file changed, 3 insertions(+)

--
2.7.4

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diff mbox

Patch

diff --git a/drivers/infiniband/hw/mlx4/main.c b/drivers/infiniband/hw/mlx4/main.c
index ac235b5..a1b7fcb 100644
--- a/drivers/infiniband/hw/mlx4/main.c
+++ b/drivers/infiniband/hw/mlx4/main.c
@@ -2262,6 +2262,9 @@  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)