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// SPDX-License-Identifier: GPL-2.0
// Copyright (c) 2019 Mellanox Technologies.
#include "health.h"
#include "params.h"
static int mlx5e_query_rq_state(struct mlx5_core_dev *dev, u32 rqn, u8 *state)
{
int outlen = MLX5_ST_SZ_BYTES(query_rq_out);
void *out;
void *rqc;
int err;
out = kvzalloc(outlen, GFP_KERNEL);
if (!out)
return -ENOMEM;
err = mlx5_core_query_rq(dev, rqn, out);
if (err)
goto out;
rqc = MLX5_ADDR_OF(query_rq_out, out, rq_context);
*state = MLX5_GET(rqc, rqc, state);
out:
kvfree(out);
return err;
}
static int mlx5e_rx_reporter_build_diagnose_output(struct mlx5e_rq *rq,
struct devlink_fmsg *fmsg)
{
struct mlx5e_priv *priv = rq->channel->priv;
struct mlx5e_params *params;
struct mlx5e_icosq *icosq;
u8 icosq_hw_state;
int wqes_sz;
u8 hw_state;
u16 wq_head;
int err;
params = &priv->channels.params;
icosq = &rq->channel->icosq;
err = mlx5e_query_rq_state(priv->mdev, rq->rqn, &hw_state);
if (err)
return err;
err = mlx5_core_query_sq_state(priv->mdev, icosq->sqn, &icosq_hw_state);
if (err)
return err;
wqes_sz = mlx5e_rqwq_get_cur_sz(rq);
wq_head = params->rq_wq_type == MLX5_WQ_TYPE_LINKED_LIST_STRIDING_RQ ?
rq->mpwqe.wq.head : mlx5_wq_cyc_get_head(&rq->wqe.wq);
err = devlink_fmsg_obj_nest_start(fmsg);
if (err)
return err;
err = devlink_fmsg_u32_pair_put(fmsg, "channel ix", rq->channel->ix);
if (err)
return err;
err = devlink_fmsg_u32_pair_put(fmsg, "rqn", rq->rqn);
if (err)
return err;
err = devlink_fmsg_u8_pair_put(fmsg, "HW state", hw_state);
if (err)
return err;
err = devlink_fmsg_u8_pair_put(fmsg, "SW state", rq->state);
if (err)
return err;
err = devlink_fmsg_u32_pair_put(fmsg, "posted WQEs", wqes_sz);
if (err)
return err;
err = devlink_fmsg_u32_pair_put(fmsg, "cc", wq_head);
if (err)
return err;
err = devlink_fmsg_u8_pair_put(fmsg, "ICOSQ HW state", icosq_hw_state);
if (err)
return err;
err = mlx5e_reporter_cq_diagnose(&rq->cq, fmsg);
if (err)
return err;
err = devlink_fmsg_obj_nest_end(fmsg);
if (err)
return err;
return 0;
}
static int mlx5e_rx_reporter_diagnose(struct devlink_health_reporter *reporter,
struct devlink_fmsg *fmsg)
{
struct mlx5e_priv *priv = devlink_health_reporter_priv(reporter);
struct mlx5e_params *params = &priv->channels.params;
struct mlx5e_rq *generic_rq;
u32 rq_stride, rq_sz;
int i, err = 0;
mutex_lock(&priv->state_lock);
if (!test_bit(MLX5E_STATE_OPENED, &priv->state))
goto unlock;
generic_rq = &priv->channels.c[0]->rq;
rq_sz = mlx5e_rqwq_get_size(generic_rq);
rq_stride = BIT(mlx5e_mpwqe_get_log_stride_size(priv->mdev, params, NULL));
err = mlx5e_reporter_named_obj_nest_start(fmsg, "Common config");
if (err)
goto unlock;
err = mlx5e_reporter_named_obj_nest_start(fmsg, "RQ");
if (err)
goto unlock;
err = devlink_fmsg_u8_pair_put(fmsg, "type", params->rq_wq_type);
if (err)
goto unlock;
err = devlink_fmsg_u64_pair_put(fmsg, "stride size", rq_stride);
if (err)
goto unlock;
err = devlink_fmsg_u32_pair_put(fmsg, "size", rq_sz);
if (err)
goto unlock;
err = mlx5e_reporter_named_obj_nest_end(fmsg);
if (err)
goto unlock;
err = mlx5e_reporter_cq_common_diagnose(&generic_rq->cq, fmsg);
if (err)
goto unlock;
err = mlx5e_reporter_named_obj_nest_end(fmsg);
if (err)
goto unlock;
err = devlink_fmsg_arr_pair_nest_start(fmsg, "RQs");
if (err)
goto unlock;
for (i = 0; i < priv->channels.num; i++) {
struct mlx5e_rq *rq = &priv->channels.c[i]->rq;
err = mlx5e_rx_reporter_build_diagnose_output(rq, fmsg);
if (err)
goto unlock;
}
err = devlink_fmsg_arr_pair_nest_end(fmsg);
if (err)
goto unlock;
unlock:
mutex_unlock(&priv->state_lock);
return err;
}
static const struct devlink_health_reporter_ops mlx5_rx_reporter_ops = {
.name = "rx",
.diagnose = mlx5e_rx_reporter_diagnose,
};
int mlx5e_reporter_rx_create(struct mlx5e_priv *priv)
{
struct devlink *devlink = priv_to_devlink(priv->mdev);
struct devlink_health_reporter *reporter;
reporter = devlink_health_reporter_create(devlink,
&mlx5_rx_reporter_ops,
0, false, priv);
if (IS_ERR(reporter)) {
netdev_warn(priv->netdev, "Failed to create rx reporter, err = %ld\n",
PTR_ERR(reporter));
return PTR_ERR(reporter);
}
priv->rx_reporter = reporter;
return 0;
}
void mlx5e_reporter_rx_destroy(struct mlx5e_priv *priv)
{
if (!priv->rx_reporter)
return;
devlink_health_reporter_destroy(priv->rx_reporter);
}
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