summaryrefslogtreecommitdiff
path: root/drivers/net/ethernet/mellanox/mlx5/core/en/health.c
blob: 1d6b58860da6d40d6b2cb0dfebe292b9bc364ade (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
// SPDX-License-Identifier: GPL-2.0
// Copyright (c) 2019 Mellanox Technologies.

#include "health.h"
#include "lib/eq.h"

int mlx5e_reporter_named_obj_nest_start(struct devlink_fmsg *fmsg, char *name)
{
	int err;

	err = devlink_fmsg_pair_nest_start(fmsg, name);
	if (err)
		return err;

	err = devlink_fmsg_obj_nest_start(fmsg);
	if (err)
		return err;

	return 0;
}

int mlx5e_reporter_named_obj_nest_end(struct devlink_fmsg *fmsg)
{
	int err;

	err = devlink_fmsg_obj_nest_end(fmsg);
	if (err)
		return err;

	err = devlink_fmsg_pair_nest_end(fmsg);
	if (err)
		return err;

	return 0;
}

int mlx5e_reporter_cq_diagnose(struct mlx5e_cq *cq, struct devlink_fmsg *fmsg)
{
	struct mlx5e_priv *priv = cq->channel->priv;
	u32 out[MLX5_ST_SZ_DW(query_cq_out)] = {};
	u8 hw_status;
	void *cqc;
	int err;

	err = mlx5_core_query_cq(priv->mdev, &cq->mcq, out, sizeof(out));
	if (err)
		return err;

	cqc = MLX5_ADDR_OF(query_cq_out, out, cq_context);
	hw_status = MLX5_GET(cqc, cqc, status);

	err = mlx5e_reporter_named_obj_nest_start(fmsg, "CQ");
	if (err)
		return err;

	err = devlink_fmsg_u32_pair_put(fmsg, "cqn", cq->mcq.cqn);
	if (err)
		return err;

	err = devlink_fmsg_u8_pair_put(fmsg, "HW status", hw_status);
	if (err)
		return err;

	err = mlx5e_reporter_named_obj_nest_end(fmsg);
	if (err)
		return err;

	return 0;
}

int mlx5e_reporter_cq_common_diagnose(struct mlx5e_cq *cq, struct devlink_fmsg *fmsg)
{
	u8 cq_log_stride;
	u32 cq_sz;
	int err;

	cq_sz = mlx5_cqwq_get_size(&cq->wq);
	cq_log_stride = mlx5_cqwq_get_log_stride_size(&cq->wq);

	err = mlx5e_reporter_named_obj_nest_start(fmsg, "CQ");
	if (err)
		return err;

	err = devlink_fmsg_u64_pair_put(fmsg, "stride size", BIT(cq_log_stride));
	if (err)
		return err;

	err = devlink_fmsg_u32_pair_put(fmsg, "size", cq_sz);
	if (err)
		return err;

	err = mlx5e_reporter_named_obj_nest_end(fmsg);
	if (err)
		return err;

	return 0;
}

int mlx5e_health_create_reporters(struct mlx5e_priv *priv)
{
	int err;

	err = mlx5e_reporter_tx_create(priv);
	if (err)
		return err;

	err = mlx5e_reporter_rx_create(priv);
	if (err)
		return err;

	return 0;
}

void mlx5e_health_destroy_reporters(struct mlx5e_priv *priv)
{
	mlx5e_reporter_rx_destroy(priv);
	mlx5e_reporter_tx_destroy(priv);
}

void mlx5e_health_channels_update(struct mlx5e_priv *priv)
{
	if (priv->tx_reporter)
		devlink_health_reporter_state_update(priv->tx_reporter,
						     DEVLINK_HEALTH_REPORTER_STATE_HEALTHY);
	if (priv->rx_reporter)
		devlink_health_reporter_state_update(priv->rx_reporter,
						     DEVLINK_HEALTH_REPORTER_STATE_HEALTHY);
}

int mlx5e_health_sq_to_ready(struct mlx5e_channel *channel, u32 sqn)
{
	struct mlx5_core_dev *mdev = channel->mdev;
	struct net_device *dev = channel->netdev;
	struct mlx5e_modify_sq_param msp = {};
	int err;

	msp.curr_state = MLX5_SQC_STATE_ERR;
	msp.next_state = MLX5_SQC_STATE_RST;

	err = mlx5e_modify_sq(mdev, sqn, &msp);
	if (err) {
		netdev_err(dev, "Failed to move sq 0x%x to reset\n", sqn);
		return err;
	}

	memset(&msp, 0, sizeof(msp));
	msp.curr_state = MLX5_SQC_STATE_RST;
	msp.next_state = MLX5_SQC_STATE_RDY;

	err = mlx5e_modify_sq(mdev, sqn, &msp);
	if (err) {
		netdev_err(dev, "Failed to move sq 0x%x to ready\n", sqn);
		return err;
	}

	return 0;
}

int mlx5e_health_recover_channels(struct mlx5e_priv *priv)
{
	int err = 0;

	rtnl_lock();
	mutex_lock(&priv->state_lock);

	if (!test_bit(MLX5E_STATE_OPENED, &priv->state))
		goto out;

	err = mlx5e_safe_reopen_channels(priv);

out:
	mutex_unlock(&priv->state_lock);
	rtnl_unlock();

	return err;
}

int mlx5e_health_channel_eq_recover(struct mlx5_eq_comp *eq, struct mlx5e_channel *channel)
{
	u32 eqe_count;

	netdev_err(channel->netdev, "EQ 0x%x: Cons = 0x%x, irqn = 0x%x\n",
		   eq->core.eqn, eq->core.cons_index, eq->core.irqn);

	eqe_count = mlx5_eq_poll_irq_disabled(eq);
	if (!eqe_count)
		return -EIO;

	netdev_err(channel->netdev, "Recovered %d eqes on EQ 0x%x\n",
		   eqe_count, eq->core.eqn);

	channel->stats->eq_rearm++;
	return 0;
}

int mlx5e_health_report(struct mlx5e_priv *priv,
			struct devlink_health_reporter *reporter, char *err_str,
			struct mlx5e_err_ctx *err_ctx)
{
	if (!reporter) {
		netdev_err(priv->netdev, err_str);
		return err_ctx->recover(&err_ctx->ctx);
	}
	return devlink_health_report(reporter, err_str, err_ctx);
}