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IB/mlx5: Expose RoCE accelerator counters

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Introduce the following RoCE accelerator counters:
* roce_adp_retrans - number of adaptive retransmission for RoCE traffic.
* roce_adp_retrans_to - number of times RoCE traffic reached time out
  due to adaptive retransmission.
* roce_slow_restart - number of times RoCE slow restart was used.
* roce_slow_restart_cnps - number of times RoCE slow restart
  generate CNP packets.
* roce_slow_restart_trans - number of times RoCE slow restart change
  state to slow restart.

Link: https://lore.kernel.org/r/20200115145459.83280-3-leon@kernel.org
Signed-off-by: Avihai Horon <avihaih@mellanox.com>
Reviewed-by: Maor Gottlieb <maorg@mellanox.com>
Signed-off-by: Leon Romanovsky <leonro@mellanox.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
This commit is contained in:
Avihai Horon 2020-01-15 16:54:59 +02:00 committed by Jason Gunthorpe
parent d6de0bb185
commit d7fab91637
1 changed files with 18 additions and 0 deletions
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18
drivers/infiniband/hw/mlx5/main.c
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@ -5370,6 +5370,14 @@ static const struct mlx5_ib_counter extended_err_cnts[] = {
INIT_Q_COUNTER(req_cqe_flush_error),
};
static const struct mlx5_ib_counter roce_accl_cnts[] = {
INIT_Q_COUNTER(roce_adp_retrans),
INIT_Q_COUNTER(roce_adp_retrans_to),
INIT_Q_COUNTER(roce_slow_restart),
INIT_Q_COUNTER(roce_slow_restart_cnps),
INIT_Q_COUNTER(roce_slow_restart_trans),
};
#define INIT_EXT_PPCNT_COUNTER(_name) \
{ .name = #_name, .offset = \
MLX5_BYTE_OFF(ppcnt_reg, \
@ -5418,6 +5426,9 @@ static int __mlx5_ib_alloc_counters(struct mlx5_ib_dev *dev,
if (MLX5_CAP_GEN(dev->mdev, enhanced_error_q_counters))
num_counters += ARRAY_SIZE(extended_err_cnts);
if (MLX5_CAP_GEN(dev->mdev, roce_accl))
num_counters += ARRAY_SIZE(roce_accl_cnts);
cnts->num_q_counters = num_counters;
if (MLX5_CAP_GEN(dev->mdev, cc_query_allowed)) {
@ -5478,6 +5489,13 @@ static void mlx5_ib_fill_counters(struct mlx5_ib_dev *dev,
}
}
if (MLX5_CAP_GEN(dev->mdev, roce_accl)) {
for (i = 0; i < ARRAY_SIZE(roce_accl_cnts); i++, j++) {
names[j] = roce_accl_cnts[i].name;
offsets[j] = roce_accl_cnts[i].offset;
}
}
if (MLX5_CAP_GEN(dev->mdev, cc_query_allowed)) {
for (i = 0; i < ARRAY_SIZE(cong_cnts); i++, j++) {
names[j] = cong_cnts[i].name;