// 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 "params.h"
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#include "txrx.h"
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static int mlx5e_query_rq_state(struct mlx5_core_dev *dev, u32 rqn, u8 *state)
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{
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int outlen = MLX5_ST_SZ_BYTES(query_rq_out);
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void *out;
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void *rqc;
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int err;
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out = kvzalloc(outlen, GFP_KERNEL);
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if (!out)
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return -ENOMEM;
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err = mlx5_core_query_rq(dev, rqn, out);
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if (err)
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goto out;
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rqc = MLX5_ADDR_OF(query_rq_out, out, rq_context);
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*state = MLX5_GET(rqc, rqc, state);
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out:
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kvfree(out);
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return err;
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}
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static int mlx5e_wait_for_icosq_flush(struct mlx5e_icosq *icosq)
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{
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unsigned long exp_time = jiffies +
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msecs_to_jiffies(MLX5E_REPORTER_FLUSH_TIMEOUT_MSEC);
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while (time_before(jiffies, exp_time)) {
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if (icosq->cc == icosq->pc)
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return 0;
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msleep(20);
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}
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netdev_err(icosq->channel->netdev,
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"Wait for ICOSQ 0x%x flush timeout (cc = 0x%x, pc = 0x%x)\n",
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icosq->sqn, icosq->cc, icosq->pc);
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return -ETIMEDOUT;
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}
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static void mlx5e_reset_icosq_cc_pc(struct mlx5e_icosq *icosq)
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{
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WARN_ONCE(icosq->cc != icosq->pc, "ICOSQ 0x%x: cc (0x%x) != pc (0x%x)\n",
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icosq->sqn, icosq->cc, icosq->pc);
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icosq->cc = 0;
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icosq->pc = 0;
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}
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static int mlx5e_rx_reporter_err_icosq_cqe_recover(void *ctx)
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{
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struct mlx5_core_dev *mdev;
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struct mlx5e_icosq *icosq;
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struct net_device *dev;
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struct mlx5e_rq *rq;
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u8 state;
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int err;
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icosq = ctx;
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rq = &icosq->channel->rq;
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mdev = icosq->channel->mdev;
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dev = icosq->channel->netdev;
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err = mlx5_core_query_sq_state(mdev, icosq->sqn, &state);
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if (err) {
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netdev_err(dev, "Failed to query ICOSQ 0x%x state. err = %d\n",
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icosq->sqn, err);
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goto out;
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}
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if (state != MLX5_SQC_STATE_ERR)
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goto out;
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mlx5e_deactivate_rq(rq);
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err = mlx5e_wait_for_icosq_flush(icosq);
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if (err)
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goto out;
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mlx5e_deactivate_icosq(icosq);
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/* At this point, both the rq and the icosq are disabled */
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err = mlx5e_health_sq_to_ready(icosq->channel, icosq->sqn);
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if (err)
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goto out;
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mlx5e_reset_icosq_cc_pc(icosq);
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mlx5e_free_rx_in_progress_descs(rq);
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clear_bit(MLX5E_SQ_STATE_RECOVERING, &icosq->state);
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mlx5e_activate_icosq(icosq);
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mlx5e_activate_rq(rq);
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rq->stats->recover++;
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return 0;
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out:
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clear_bit(MLX5E_SQ_STATE_RECOVERING, &icosq->state);
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return err;
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}
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static int mlx5e_rq_to_ready(struct mlx5e_rq *rq, int curr_state)
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{
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struct net_device *dev = rq->netdev;
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int err;
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err = mlx5e_modify_rq_state(rq, curr_state, MLX5_RQC_STATE_RST);
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if (err) {
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netdev_err(dev, "Failed to move rq 0x%x to reset\n", rq->rqn);
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return err;
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}
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err = mlx5e_modify_rq_state(rq, MLX5_RQC_STATE_RST, MLX5_RQC_STATE_RDY);
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if (err) {
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netdev_err(dev, "Failed to move rq 0x%x to ready\n", rq->rqn);
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return err;
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}
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return 0;
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}
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static int mlx5e_rx_reporter_err_rq_cqe_recover(void *ctx)
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{
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struct mlx5e_rq *rq = ctx;
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int err;
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mlx5e_deactivate_rq(rq);
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mlx5e_free_rx_descs(rq);
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err = mlx5e_rq_to_ready(rq, MLX5_RQC_STATE_ERR);
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if (err)
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goto out;
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clear_bit(MLX5E_RQ_STATE_RECOVERING, &rq->state);
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mlx5e_activate_rq(rq);
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rq->stats->recover++;
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return 0;
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out:
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clear_bit(MLX5E_RQ_STATE_RECOVERING, &rq->state);
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return err;
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}
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static int mlx5e_rx_reporter_timeout_recover(void *ctx)
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{
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struct mlx5e_icosq *icosq;
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struct mlx5_eq_comp *eq;
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struct mlx5e_rq *rq;
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int err;
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rq = ctx;
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icosq = &rq->channel->icosq;
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eq = rq->cq.mcq.eq;
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err = mlx5e_health_channel_eq_recover(eq, rq->channel);
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if (err)
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clear_bit(MLX5E_SQ_STATE_ENABLED, &icosq->state);
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return err;
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}
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static int mlx5e_rx_reporter_recover_from_ctx(struct mlx5e_err_ctx *err_ctx)
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{
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return err_ctx->recover(err_ctx->ctx);
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}
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static int mlx5e_rx_reporter_recover(struct devlink_health_reporter *reporter,
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void *context,
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struct netlink_ext_ack *extack)
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{
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struct mlx5e_priv *priv = devlink_health_reporter_priv(reporter);
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struct mlx5e_err_ctx *err_ctx = context;
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return err_ctx ? mlx5e_rx_reporter_recover_from_ctx(err_ctx) :
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mlx5e_health_recover_channels(priv);
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}
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static int mlx5e_reporter_icosq_diagnose(struct mlx5e_icosq *icosq, u8 hw_state,
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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, "ICOSQ");
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if (err)
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return err;
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err = devlink_fmsg_u32_pair_put(fmsg, "sqn", icosq->sqn);
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if (err)
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return err;
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err = devlink_fmsg_u8_pair_put(fmsg, "HW state", hw_state);
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if (err)
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return err;
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err = devlink_fmsg_u32_pair_put(fmsg, "cc", icosq->cc);
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if (err)
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return err;
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err = devlink_fmsg_u32_pair_put(fmsg, "pc", icosq->pc);
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if (err)
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return err;
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err = devlink_fmsg_u32_pair_put(fmsg, "WQE size",
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mlx5_wq_cyc_get_size(&icosq->wq));
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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, "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", icosq->cq.mcq.cqn);
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if (err)
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return err;
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err = devlink_fmsg_u32_pair_put(fmsg, "cc", icosq->cq.wq.cc);
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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(&icosq->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 mlx5e_health_fmsg_named_obj_nest_end(fmsg);
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}
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static int mlx5e_rx_reporter_build_diagnose_output(struct mlx5e_rq *rq,
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struct devlink_fmsg *fmsg)
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{
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struct mlx5e_priv *priv = rq->channel->priv;
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struct mlx5e_icosq *icosq;
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u8 icosq_hw_state;
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u16 wqe_counter;
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int wqes_sz;
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u8 hw_state;
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u16 wq_head;
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int err;
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icosq = &rq->channel->icosq;
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err = mlx5e_query_rq_state(priv->mdev, rq->rqn, &hw_state);
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if (err)
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return err;
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err = mlx5_core_query_sq_state(priv->mdev, icosq->sqn, &icosq_hw_state);
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if (err)
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return err;
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wqes_sz = mlx5e_rqwq_get_cur_sz(rq);
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wq_head = mlx5e_rqwq_get_head(rq);
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wqe_counter = mlx5e_rqwq_get_wqe_counter(rq);
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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 = devlink_fmsg_u32_pair_put(fmsg, "channel ix", rq->channel->ix);
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if (err)
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return err;
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err = devlink_fmsg_u32_pair_put(fmsg, "rqn", rq->rqn);
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if (err)
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return err;
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err = devlink_fmsg_u8_pair_put(fmsg, "HW state", hw_state);
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if (err)
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return err;
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err = devlink_fmsg_u8_pair_put(fmsg, "SW state", rq->state);
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if (err)
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return err;
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err = devlink_fmsg_u32_pair_put(fmsg, "WQE counter", wqe_counter);
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if (err)
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return err;
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err = devlink_fmsg_u32_pair_put(fmsg, "posted WQEs", wqes_sz);
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if (err)
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return err;
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err = devlink_fmsg_u32_pair_put(fmsg, "cc", wq_head);
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if (err)
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return err;
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err = mlx5e_health_cq_diag_fmsg(&rq->cq, fmsg);
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if (err)
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return err;
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err = mlx5e_health_eq_diag_fmsg(rq->cq.mcq.eq, fmsg);
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if (err)
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return err;
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err = mlx5e_reporter_icosq_diagnose(icosq, icosq_hw_state, fmsg);
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if (err)
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return 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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return 0;
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}
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static int mlx5e_rx_reporter_diagnose(struct devlink_health_reporter *reporter,
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struct devlink_fmsg *fmsg,
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struct netlink_ext_ack *extack)
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{
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struct mlx5e_priv *priv = devlink_health_reporter_priv(reporter);
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struct mlx5e_params *params = &priv->channels.params;
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struct mlx5e_rq *generic_rq;
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u32 rq_stride, rq_sz;
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int i, err = 0;
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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 unlock;
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generic_rq = &priv->channels.c[0]->rq;
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rq_sz = mlx5e_rqwq_get_size(generic_rq);
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rq_stride = BIT(mlx5e_mpwqe_get_log_stride_size(priv->mdev, params, NULL));
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err = mlx5e_health_fmsg_named_obj_nest_start(fmsg, "Common config");
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if (err)
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goto unlock;
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err = mlx5e_health_fmsg_named_obj_nest_start(fmsg, "RQ");
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if (err)
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goto unlock;
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err = devlink_fmsg_u8_pair_put(fmsg, "type", params->rq_wq_type);
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if (err)
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goto unlock;
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err = devlink_fmsg_u64_pair_put(fmsg, "stride size", rq_stride);
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if (err)
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goto unlock;
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err = devlink_fmsg_u32_pair_put(fmsg, "size", rq_sz);
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if (err)
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goto unlock;
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err = mlx5e_health_cq_common_diag_fmsg(&generic_rq->cq, fmsg);
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if (err)
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goto unlock;
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err = mlx5e_health_fmsg_named_obj_nest_end(fmsg);
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if (err)
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goto unlock;
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err = mlx5e_health_fmsg_named_obj_nest_end(fmsg);
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if (err)
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goto unlock;
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err = devlink_fmsg_arr_pair_nest_start(fmsg, "RQs");
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if (err)
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goto unlock;
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for (i = 0; i < priv->channels.num; i++) {
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struct mlx5e_rq *rq = &priv->channels.c[i]->rq;
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err = mlx5e_rx_reporter_build_diagnose_output(rq, fmsg);
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if (err)
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goto unlock;
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}
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err = devlink_fmsg_arr_pair_nest_end(fmsg);
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if (err)
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goto unlock;
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unlock:
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mutex_unlock(&priv->state_lock);
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return err;
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}
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static int mlx5e_rx_reporter_dump_icosq(struct mlx5e_priv *priv, struct devlink_fmsg *fmsg,
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void *ctx)
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{
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struct mlx5e_txqsq *icosq = ctx;
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struct mlx5_rsc_key key = {};
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int err;
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if (!test_bit(MLX5E_STATE_OPENED, &priv->state))
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return 0;
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err = mlx5e_health_fmsg_named_obj_nest_start(fmsg, "SX Slice");
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if (err)
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return err;
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key.size = PAGE_SIZE;
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key.rsc = MLX5_SGMT_TYPE_SX_SLICE_ALL;
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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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err = mlx5e_health_fmsg_named_obj_nest_start(fmsg, "ICOSQ");
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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, "QPC");
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if (err)
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return err;
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key.rsc = MLX5_SGMT_TYPE_FULL_QPC;
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key.index1 = icosq->sqn;
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key.num_of_obj1 = 1;
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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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err = mlx5e_health_fmsg_named_obj_nest_start(fmsg, "send_buff");
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if (err)
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return err;
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key.rsc = MLX5_SGMT_TYPE_SND_BUFF;
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key.num_of_obj2 = MLX5_RSC_DUMP_ALL;
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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 mlx5e_health_fmsg_named_obj_nest_end(fmsg);
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}
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static int mlx5e_rx_reporter_dump_rq(struct mlx5e_priv *priv, struct devlink_fmsg *fmsg,
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void *ctx)
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{
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struct mlx5_rsc_key key = {};
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struct mlx5e_rq *rq = ctx;
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int err;
|
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if (!test_bit(MLX5E_STATE_OPENED, &priv->state))
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return 0;
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err = mlx5e_health_fmsg_named_obj_nest_start(fmsg, "RX Slice");
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if (err)
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return err;
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key.size = PAGE_SIZE;
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key.rsc = MLX5_SGMT_TYPE_RX_SLICE_ALL;
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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)
|
return err;
|
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err = mlx5e_health_fmsg_named_obj_nest_start(fmsg, "RQ");
|
if (err)
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return err;
|
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err = mlx5e_health_fmsg_named_obj_nest_start(fmsg, "QPC");
|
if (err)
|
return err;
|
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key.rsc = MLX5_SGMT_TYPE_FULL_QPC;
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key.index1 = rq->rqn;
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key.num_of_obj1 = 1;
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|
err = mlx5e_health_rsc_fmsg_dump(priv, &key, fmsg);
|
if (err)
|
return err;
|
|
err = mlx5e_health_fmsg_named_obj_nest_end(fmsg);
|
if (err)
|
return err;
|
|
err = mlx5e_health_fmsg_named_obj_nest_start(fmsg, "receive_buff");
|
if (err)
|
return err;
|
|
key.rsc = MLX5_SGMT_TYPE_RCV_BUFF;
|
key.num_of_obj2 = MLX5_RSC_DUMP_ALL;
|
err = mlx5e_health_rsc_fmsg_dump(priv, &key, fmsg);
|
if (err)
|
return err;
|
|
err = mlx5e_health_fmsg_named_obj_nest_end(fmsg);
|
if (err)
|
return err;
|
|
return mlx5e_health_fmsg_named_obj_nest_end(fmsg);
|
}
|
|
static int mlx5e_rx_reporter_dump_all_rqs(struct mlx5e_priv *priv,
|
struct devlink_fmsg *fmsg)
|
{
|
struct mlx5_rsc_key key = {};
|
int i, err;
|
|
if (!test_bit(MLX5E_STATE_OPENED, &priv->state))
|
return 0;
|
|
err = mlx5e_health_fmsg_named_obj_nest_start(fmsg, "RX Slice");
|
if (err)
|
return err;
|
|
key.size = PAGE_SIZE;
|
key.rsc = MLX5_SGMT_TYPE_RX_SLICE_ALL;
|
err = mlx5e_health_rsc_fmsg_dump(priv, &key, fmsg);
|
if (err)
|
return err;
|
|
err = mlx5e_health_fmsg_named_obj_nest_end(fmsg);
|
if (err)
|
return err;
|
|
err = devlink_fmsg_arr_pair_nest_start(fmsg, "RQs");
|
if (err)
|
return err;
|
|
for (i = 0; i < priv->channels.num; i++) {
|
struct mlx5e_rq *rq = &priv->channels.c[i]->rq;
|
|
err = mlx5e_health_queue_dump(priv, fmsg, rq->rqn, "RQ");
|
if (err)
|
return err;
|
}
|
|
return devlink_fmsg_arr_pair_nest_end(fmsg);
|
}
|
|
static int mlx5e_rx_reporter_dump_from_ctx(struct mlx5e_priv *priv,
|
struct mlx5e_err_ctx *err_ctx,
|
struct devlink_fmsg *fmsg)
|
{
|
return err_ctx->dump(priv, fmsg, err_ctx->ctx);
|
}
|
|
static int mlx5e_rx_reporter_dump(struct devlink_health_reporter *reporter,
|
struct devlink_fmsg *fmsg, void *context,
|
struct netlink_ext_ack *extack)
|
{
|
struct mlx5e_priv *priv = devlink_health_reporter_priv(reporter);
|
struct mlx5e_err_ctx *err_ctx = context;
|
|
return err_ctx ? mlx5e_rx_reporter_dump_from_ctx(priv, err_ctx, fmsg) :
|
mlx5e_rx_reporter_dump_all_rqs(priv, fmsg);
|
}
|
|
void mlx5e_reporter_rx_timeout(struct mlx5e_rq *rq)
|
{
|
struct mlx5e_icosq *icosq = &rq->channel->icosq;
|
struct mlx5e_priv *priv = rq->channel->priv;
|
char err_str[MLX5E_REPORTER_PER_Q_MAX_LEN];
|
struct mlx5e_err_ctx err_ctx = {};
|
|
err_ctx.ctx = rq;
|
err_ctx.recover = mlx5e_rx_reporter_timeout_recover;
|
err_ctx.dump = mlx5e_rx_reporter_dump_rq;
|
snprintf(err_str, sizeof(err_str),
|
"RX timeout on channel: %d, ICOSQ: 0x%x RQ: 0x%x, CQ: 0x%x",
|
icosq->channel->ix, icosq->sqn, rq->rqn, rq->cq.mcq.cqn);
|
|
mlx5e_health_report(priv, priv->rx_reporter, err_str, &err_ctx);
|
}
|
|
void mlx5e_reporter_rq_cqe_err(struct mlx5e_rq *rq)
|
{
|
struct mlx5e_priv *priv = rq->channel->priv;
|
char err_str[MLX5E_REPORTER_PER_Q_MAX_LEN];
|
struct mlx5e_err_ctx err_ctx = {};
|
|
err_ctx.ctx = rq;
|
err_ctx.recover = mlx5e_rx_reporter_err_rq_cqe_recover;
|
err_ctx.dump = mlx5e_rx_reporter_dump_rq;
|
snprintf(err_str, sizeof(err_str), "ERR CQE on RQ: 0x%x", rq->rqn);
|
|
mlx5e_health_report(priv, priv->rx_reporter, err_str, &err_ctx);
|
}
|
|
void mlx5e_reporter_icosq_cqe_err(struct mlx5e_icosq *icosq)
|
{
|
struct mlx5e_priv *priv = icosq->channel->priv;
|
char err_str[MLX5E_REPORTER_PER_Q_MAX_LEN];
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struct mlx5e_err_ctx err_ctx = {};
|
|
err_ctx.ctx = icosq;
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err_ctx.recover = mlx5e_rx_reporter_err_icosq_cqe_recover;
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err_ctx.dump = mlx5e_rx_reporter_dump_icosq;
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snprintf(err_str, sizeof(err_str), "ERR CQE on ICOSQ: 0x%x", icosq->sqn);
|
|
mlx5e_health_report(priv, priv->rx_reporter, err_str, &err_ctx);
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}
|
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static const struct devlink_health_reporter_ops mlx5_rx_reporter_ops = {
|
.name = "rx",
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.recover = mlx5e_rx_reporter_recover,
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.diagnose = mlx5e_rx_reporter_diagnose,
|
.dump = mlx5e_rx_reporter_dump,
|
};
|
|
#define MLX5E_REPORTER_RX_GRACEFUL_PERIOD 500
|
|
void mlx5e_reporter_rx_create(struct mlx5e_priv *priv)
|
{
|
struct devlink_health_reporter *reporter;
|
|
reporter = devlink_port_health_reporter_create(&priv->dl_port, &mlx5_rx_reporter_ops,
|
MLX5E_REPORTER_RX_GRACEFUL_PERIOD, priv);
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if (IS_ERR(reporter)) {
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netdev_warn(priv->netdev, "Failed to create rx reporter, err = %ld\n",
|
PTR_ERR(reporter));
|
return;
|
}
|
priv->rx_reporter = reporter;
|
}
|
|
void mlx5e_reporter_rx_destroy(struct mlx5e_priv *priv)
|
{
|
if (!priv->rx_reporter)
|
return;
|
|
devlink_port_health_reporter_destroy(priv->rx_reporter);
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}
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