// SPDX-License-Identifier: GPL-2.0
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// Copyright (c) 2019 Mellanox Technologies.
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#include "health.h"
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#include "lib/eq.h"
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#include "lib/mlx5.h"
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int mlx5e_health_fmsg_named_obj_nest_start(struct devlink_fmsg *fmsg, char *name)
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{
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int err;
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err = devlink_fmsg_pair_nest_start(fmsg, name);
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if (err)
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return err;
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err = devlink_fmsg_obj_nest_start(fmsg);
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if (err)
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return err;
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return 0;
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}
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int mlx5e_health_fmsg_named_obj_nest_end(struct devlink_fmsg *fmsg)
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{
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int err;
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err = devlink_fmsg_obj_nest_end(fmsg);
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if (err)
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return err;
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err = devlink_fmsg_pair_nest_end(fmsg);
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if (err)
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return err;
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return 0;
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}
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int mlx5e_health_cq_diag_fmsg(struct mlx5e_cq *cq, struct devlink_fmsg *fmsg)
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{
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struct mlx5e_priv *priv = cq->channel->priv;
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u32 out[MLX5_ST_SZ_DW(query_cq_out)] = {};
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u8 hw_status;
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void *cqc;
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int err;
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err = mlx5_core_query_cq(priv->mdev, &cq->mcq, out);
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if (err)
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return err;
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cqc = MLX5_ADDR_OF(query_cq_out, out, cq_context);
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hw_status = MLX5_GET(cqc, cqc, status);
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err = mlx5e_health_fmsg_named_obj_nest_start(fmsg, "CQ");
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if (err)
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return err;
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err = devlink_fmsg_u32_pair_put(fmsg, "cqn", cq->mcq.cqn);
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if (err)
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return err;
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err = devlink_fmsg_u8_pair_put(fmsg, "HW status", hw_status);
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if (err)
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return err;
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err = devlink_fmsg_u32_pair_put(fmsg, "ci", mlx5_cqwq_get_ci(&cq->wq));
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if (err)
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return err;
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err = devlink_fmsg_u32_pair_put(fmsg, "size", mlx5_cqwq_get_size(&cq->wq));
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if (err)
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return err;
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err = mlx5e_health_fmsg_named_obj_nest_end(fmsg);
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if (err)
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return err;
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return 0;
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}
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int mlx5e_health_cq_common_diag_fmsg(struct mlx5e_cq *cq, struct devlink_fmsg *fmsg)
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{
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u8 cq_log_stride;
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u32 cq_sz;
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int err;
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cq_sz = mlx5_cqwq_get_size(&cq->wq);
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cq_log_stride = mlx5_cqwq_get_log_stride_size(&cq->wq);
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err = mlx5e_health_fmsg_named_obj_nest_start(fmsg, "CQ");
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if (err)
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return err;
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err = devlink_fmsg_u64_pair_put(fmsg, "stride size", BIT(cq_log_stride));
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if (err)
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return err;
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err = devlink_fmsg_u32_pair_put(fmsg, "size", cq_sz);
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if (err)
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return err;
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err = mlx5e_health_fmsg_named_obj_nest_end(fmsg);
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if (err)
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return err;
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return 0;
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}
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int mlx5e_health_eq_diag_fmsg(struct mlx5_eq_comp *eq, struct devlink_fmsg *fmsg)
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{
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int err;
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err = mlx5e_health_fmsg_named_obj_nest_start(fmsg, "EQ");
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if (err)
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return err;
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err = devlink_fmsg_u8_pair_put(fmsg, "eqn", eq->core.eqn);
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if (err)
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return err;
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err = devlink_fmsg_u32_pair_put(fmsg, "irqn", eq->core.irqn);
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if (err)
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return err;
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err = devlink_fmsg_u32_pair_put(fmsg, "vecidx", eq->core.vecidx);
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if (err)
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return err;
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err = devlink_fmsg_u32_pair_put(fmsg, "ci", eq->core.cons_index);
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if (err)
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return err;
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err = devlink_fmsg_u32_pair_put(fmsg, "size", eq->core.nent);
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if (err)
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return err;
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return mlx5e_health_fmsg_named_obj_nest_end(fmsg);
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}
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void mlx5e_health_create_reporters(struct mlx5e_priv *priv)
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{
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mlx5e_reporter_tx_create(priv);
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mlx5e_reporter_rx_create(priv);
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}
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void mlx5e_health_destroy_reporters(struct mlx5e_priv *priv)
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{
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mlx5e_reporter_rx_destroy(priv);
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mlx5e_reporter_tx_destroy(priv);
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}
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void mlx5e_health_channels_update(struct mlx5e_priv *priv)
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{
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if (priv->tx_reporter)
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devlink_health_reporter_state_update(priv->tx_reporter,
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DEVLINK_HEALTH_REPORTER_STATE_HEALTHY);
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if (priv->rx_reporter)
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devlink_health_reporter_state_update(priv->rx_reporter,
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DEVLINK_HEALTH_REPORTER_STATE_HEALTHY);
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}
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int mlx5e_health_sq_to_ready(struct mlx5e_channel *channel, u32 sqn)
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{
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struct mlx5_core_dev *mdev = channel->mdev;
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struct net_device *dev = channel->netdev;
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struct mlx5e_modify_sq_param msp = {};
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int err;
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msp.curr_state = MLX5_SQC_STATE_ERR;
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msp.next_state = MLX5_SQC_STATE_RST;
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err = mlx5e_modify_sq(mdev, sqn, &msp);
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if (err) {
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netdev_err(dev, "Failed to move sq 0x%x to reset\n", sqn);
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return err;
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}
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memset(&msp, 0, sizeof(msp));
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msp.curr_state = MLX5_SQC_STATE_RST;
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msp.next_state = MLX5_SQC_STATE_RDY;
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err = mlx5e_modify_sq(mdev, sqn, &msp);
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if (err) {
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netdev_err(dev, "Failed to move sq 0x%x to ready\n", sqn);
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return err;
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}
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return 0;
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}
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int mlx5e_health_recover_channels(struct mlx5e_priv *priv)
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{
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int err = 0;
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rtnl_lock();
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mutex_lock(&priv->state_lock);
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if (!test_bit(MLX5E_STATE_OPENED, &priv->state))
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goto out;
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err = mlx5e_safe_reopen_channels(priv);
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out:
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mutex_unlock(&priv->state_lock);
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rtnl_unlock();
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return err;
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}
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int mlx5e_health_channel_eq_recover(struct mlx5_eq_comp *eq, struct mlx5e_channel *channel)
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{
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u32 eqe_count;
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netdev_err(channel->netdev, "EQ 0x%x: Cons = 0x%x, irqn = 0x%x\n",
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eq->core.eqn, eq->core.cons_index, eq->core.irqn);
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eqe_count = mlx5_eq_poll_irq_disabled(eq);
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if (!eqe_count)
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return -EIO;
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netdev_err(channel->netdev, "Recovered %d eqes on EQ 0x%x\n",
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eqe_count, eq->core.eqn);
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channel->stats->eq_rearm++;
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return 0;
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}
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int mlx5e_health_report(struct mlx5e_priv *priv,
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struct devlink_health_reporter *reporter, char *err_str,
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struct mlx5e_err_ctx *err_ctx)
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{
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netdev_err(priv->netdev, "%s\n", err_str);
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if (!reporter)
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return err_ctx->recover(err_ctx->ctx);
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return devlink_health_report(reporter, err_str, err_ctx);
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}
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#define MLX5_HEALTH_DEVLINK_MAX_SIZE 1024
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static int mlx5e_health_rsc_fmsg_binary(struct devlink_fmsg *fmsg,
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const void *value, u32 value_len)
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{
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u32 data_size;
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int err = 0;
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u32 offset;
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for (offset = 0; offset < value_len; offset += data_size) {
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data_size = value_len - offset;
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if (data_size > MLX5_HEALTH_DEVLINK_MAX_SIZE)
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data_size = MLX5_HEALTH_DEVLINK_MAX_SIZE;
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err = devlink_fmsg_binary_put(fmsg, value + offset, data_size);
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if (err)
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break;
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}
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return err;
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}
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int mlx5e_health_rsc_fmsg_dump(struct mlx5e_priv *priv, struct mlx5_rsc_key *key,
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struct devlink_fmsg *fmsg)
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{
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struct mlx5_core_dev *mdev = priv->mdev;
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struct mlx5_rsc_dump_cmd *cmd;
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struct page *page;
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int cmd_err, err;
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int end_err;
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int size;
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if (IS_ERR_OR_NULL(mdev->rsc_dump))
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return -EOPNOTSUPP;
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page = alloc_page(GFP_KERNEL);
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if (!page)
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return -ENOMEM;
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err = devlink_fmsg_binary_pair_nest_start(fmsg, "data");
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if (err)
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goto free_page;
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cmd = mlx5_rsc_dump_cmd_create(mdev, key);
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if (IS_ERR(cmd)) {
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err = PTR_ERR(cmd);
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goto free_page;
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}
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do {
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cmd_err = mlx5_rsc_dump_next(mdev, cmd, page, &size);
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if (cmd_err < 0) {
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err = cmd_err;
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goto destroy_cmd;
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}
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err = mlx5e_health_rsc_fmsg_binary(fmsg, page_address(page), size);
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if (err)
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goto destroy_cmd;
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} while (cmd_err > 0);
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destroy_cmd:
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mlx5_rsc_dump_cmd_destroy(cmd);
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end_err = devlink_fmsg_binary_pair_nest_end(fmsg);
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if (end_err)
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err = end_err;
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free_page:
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__free_page(page);
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return err;
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}
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int mlx5e_health_queue_dump(struct mlx5e_priv *priv, struct devlink_fmsg *fmsg,
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int queue_idx, char *lbl)
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{
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struct mlx5_rsc_key key = {};
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int err;
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key.rsc = MLX5_SGMT_TYPE_FULL_QPC;
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key.index1 = queue_idx;
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key.size = PAGE_SIZE;
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key.num_of_obj1 = 1;
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err = devlink_fmsg_obj_nest_start(fmsg);
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if (err)
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return err;
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err = mlx5e_health_fmsg_named_obj_nest_start(fmsg, lbl);
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if (err)
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return err;
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err = devlink_fmsg_u32_pair_put(fmsg, "index", queue_idx);
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if (err)
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return err;
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err = mlx5e_health_rsc_fmsg_dump(priv, &key, fmsg);
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if (err)
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return err;
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err = mlx5e_health_fmsg_named_obj_nest_end(fmsg);
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if (err)
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return err;
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return devlink_fmsg_obj_nest_end(fmsg);
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}
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