[PATCH 1/1] IB/mlx5: Add port_xmit_wait to counter registers read
From: Tim Wright <hidden>
Date: 2017-05-01 16:37:27
Also in:
linux-rdma
Subsystem:
infiniband subsystem, mellanox mlx5 ib driver, mellanox mlx5 core vpi driver, the rest · Maintainers:
Jason Gunthorpe, Leon Romanovsky, Saeed Mahameed, Tariq Toukan, Mark Bloch, Linus Torvalds
Add port_xmit_wait to the error counters read by mlx5_ib_process_mad to ensure sysfs port counter provides correct value for PortXmitWait. Otherwise the sysfs port_xmit_wait file always contains zero. The previous MAD_IFC implementation populated this counter, but it was removed during the migration to PPCNT for error counters (32-bit only). Signed-off-by: Tim Wright <redacted> --- drivers/infiniband/hw/mlx5/mad.c | 2 ++ include/linux/mlx5/mlx5_ifc.h | 4 +++- 2 files changed, 5 insertions(+), 1 deletion(-)
diff --git a/drivers/infiniband/hw/mlx5/mad.c b/drivers/infiniband/hw/mlx5/mad.c
index 8dacb49..f1b56de6 100644
--- a/drivers/infiniband/hw/mlx5/mad.c
+++ b/drivers/infiniband/hw/mlx5/mad.c@@ -187,6 +187,8 @@ static void pma_cnt_assign(struct ib_pma_portcounters *pma_cnt, port_xmit_discards); MLX5_ASSIGN_PMA_CNTR(pma_cnt->port_xmit_constraint_errors, port_xmit_constraint_errors); + MLX5_ASSIGN_PMA_CNTR(pma_cnt->port_xmit_wait, + port_xmit_wait); MLX5_ASSIGN_PMA_CNTR(pma_cnt->port_rcv_constraint_errors, port_rcv_constraint_errors); MLX5_ASSIGN_PMA_CNTR(pma_cnt->link_overrun_errors,
diff --git a/include/linux/mlx5/mlx5_ifc.h b/include/linux/mlx5/mlx5_ifc.h
index 8382426..e641bc3 100644
--- a/include/linux/mlx5/mlx5_ifc.h
+++ b/include/linux/mlx5/mlx5_ifc.h@@ -1452,7 +1452,9 @@ struct mlx5_ifc_ib_port_cntrs_grp_data_layout_bits { u8 vl_15_dropped[0x10]; - u8 reserved_at_a0[0xa0]; + u8 reserved_at_a0[0x80]; + + u8 port_xmit_wait[0x20]; }; struct mlx5_ifc_eth_per_traffic_grp_data_layout_bits {
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1.8.3.1