IB/mlx5: Expose RoCE accelerator counters (d7fab916) · Commits · 戴 / test

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>

drivers/infiniband/hw/mlx5/main.c

+18 −0

Original line number	Diff line number	Diff line
		@@ -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;

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