diff options
Diffstat (limited to 'drivers/net/ethernet/mellanox')
5 files changed, 58 insertions, 4 deletions
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/en.h b/drivers/net/ethernet/mellanox/mlx5/core/en.h index f0ac6b0d9653..f42067adc79d 100644 --- a/drivers/net/ethernet/mellanox/mlx5/core/en.h +++ b/drivers/net/ethernet/mellanox/mlx5/core/en.h @@ -783,6 +783,8 @@ struct mlx5e_channel { DECLARE_BITMAP(state, MLX5E_CHANNEL_NUM_STATES); int ix; int cpu; + /* Sync between icosq recovery and XSK enable/disable. */ + struct mutex icosq_recovery_lock; }; struct mlx5e_ptp; diff --git a/drivers/net/ethernet/mellanox/mlx5/core/en/health.h b/drivers/net/ethernet/mellanox/mlx5/core/en/health.h index d5b7110a4265..0107e4e73bb0 100644 --- a/drivers/net/ethernet/mellanox/mlx5/core/en/health.h +++ b/drivers/net/ethernet/mellanox/mlx5/core/en/health.h @@ -30,6 +30,8 @@ void mlx5e_reporter_rx_destroy(struct mlx5e_priv *priv); void mlx5e_reporter_icosq_cqe_err(struct mlx5e_icosq *icosq); void mlx5e_reporter_rq_cqe_err(struct mlx5e_rq *rq); void mlx5e_reporter_rx_timeout(struct mlx5e_rq *rq); +void mlx5e_reporter_icosq_suspend_recovery(struct mlx5e_channel *c); +void mlx5e_reporter_icosq_resume_recovery(struct mlx5e_channel *c); #define MLX5E_REPORTER_PER_Q_MAX_LEN 256 diff --git a/drivers/net/ethernet/mellanox/mlx5/core/en/reporter_rx.c b/drivers/net/ethernet/mellanox/mlx5/core/en/reporter_rx.c index 74086eb556ae..2684e9da9f41 100644 --- a/drivers/net/ethernet/mellanox/mlx5/core/en/reporter_rx.c +++ b/drivers/net/ethernet/mellanox/mlx5/core/en/reporter_rx.c @@ -62,6 +62,7 @@ static void mlx5e_reset_icosq_cc_pc(struct mlx5e_icosq *icosq) static int mlx5e_rx_reporter_err_icosq_cqe_recover(void *ctx) { + struct mlx5e_rq *xskrq = NULL; struct mlx5_core_dev *mdev; struct mlx5e_icosq *icosq; struct net_device *dev; @@ -70,7 +71,13 @@ static int mlx5e_rx_reporter_err_icosq_cqe_recover(void *ctx) int err; icosq = ctx; + + mutex_lock(&icosq->channel->icosq_recovery_lock); + + /* mlx5e_close_rq cancels this work before RQ and ICOSQ are killed. */ rq = &icosq->channel->rq; + if (test_bit(MLX5E_RQ_STATE_ENABLED, &icosq->channel->xskrq.state)) + xskrq = &icosq->channel->xskrq; mdev = icosq->channel->mdev; dev = icosq->channel->netdev; err = mlx5_core_query_sq_state(mdev, icosq->sqn, &state); @@ -84,6 +91,9 @@ static int mlx5e_rx_reporter_err_icosq_cqe_recover(void *ctx) goto out; mlx5e_deactivate_rq(rq); + if (xskrq) + mlx5e_deactivate_rq(xskrq); + err = mlx5e_wait_for_icosq_flush(icosq); if (err) goto out; @@ -97,15 +107,28 @@ static int mlx5e_rx_reporter_err_icosq_cqe_recover(void *ctx) goto out; mlx5e_reset_icosq_cc_pc(icosq); + mlx5e_free_rx_in_progress_descs(rq); + if (xskrq) + mlx5e_free_rx_in_progress_descs(xskrq); + clear_bit(MLX5E_SQ_STATE_RECOVERING, &icosq->state); mlx5e_activate_icosq(icosq); - mlx5e_activate_rq(rq); + mlx5e_activate_rq(rq); rq->stats->recover++; + + if (xskrq) { + mlx5e_activate_rq(xskrq); + xskrq->stats->recover++; + } + + mutex_unlock(&icosq->channel->icosq_recovery_lock); + return 0; out: clear_bit(MLX5E_SQ_STATE_RECOVERING, &icosq->state); + mutex_unlock(&icosq->channel->icosq_recovery_lock); return err; } @@ -706,6 +729,16 @@ void mlx5e_reporter_icosq_cqe_err(struct mlx5e_icosq *icosq) mlx5e_health_report(priv, priv->rx_reporter, err_str, &err_ctx); } +void mlx5e_reporter_icosq_suspend_recovery(struct mlx5e_channel *c) +{ + mutex_lock(&c->icosq_recovery_lock); +} + +void mlx5e_reporter_icosq_resume_recovery(struct mlx5e_channel *c) +{ + mutex_unlock(&c->icosq_recovery_lock); +} + static const struct devlink_health_reporter_ops mlx5_rx_reporter_ops = { .name = "rx", .recover = mlx5e_rx_reporter_recover, diff --git a/drivers/net/ethernet/mellanox/mlx5/core/en/xsk/setup.c b/drivers/net/ethernet/mellanox/mlx5/core/en/xsk/setup.c index 538bc2419bd8..8526a5fbbf0b 100644 --- a/drivers/net/ethernet/mellanox/mlx5/core/en/xsk/setup.c +++ b/drivers/net/ethernet/mellanox/mlx5/core/en/xsk/setup.c @@ -4,6 +4,7 @@ #include "setup.h" #include "en/params.h" #include "en/txrx.h" +#include "en/health.h" /* It matches XDP_UMEM_MIN_CHUNK_SIZE, but as this constant is private and may * change unexpectedly, and mlx5e has a minimum valid stride size for striding @@ -170,7 +171,13 @@ void mlx5e_close_xsk(struct mlx5e_channel *c) void mlx5e_activate_xsk(struct mlx5e_channel *c) { + /* ICOSQ recovery deactivates RQs. Suspend the recovery to avoid + * activating XSKRQ in the middle of recovery. + */ + mlx5e_reporter_icosq_suspend_recovery(c); set_bit(MLX5E_RQ_STATE_ENABLED, &c->xskrq.state); + mlx5e_reporter_icosq_resume_recovery(c); + /* TX queue is created active. */ spin_lock_bh(&c->async_icosq_lock); @@ -180,6 +187,13 @@ void mlx5e_activate_xsk(struct mlx5e_channel *c) void mlx5e_deactivate_xsk(struct mlx5e_channel *c) { - mlx5e_deactivate_rq(&c->xskrq); + /* ICOSQ recovery may reactivate XSKRQ if clear_bit is called in the + * middle of recovery. Suspend the recovery to avoid it. + */ + mlx5e_reporter_icosq_suspend_recovery(c); + clear_bit(MLX5E_RQ_STATE_ENABLED, &c->xskrq.state); + mlx5e_reporter_icosq_resume_recovery(c); + synchronize_net(); /* Sync with NAPI to prevent mlx5e_post_rx_wqes. */ + /* TX queue is disabled on close. */ } diff --git a/drivers/net/ethernet/mellanox/mlx5/core/en_main.c b/drivers/net/ethernet/mellanox/mlx5/core/en_main.c index 65571593ec5c..a572fc9690ed 100644 --- a/drivers/net/ethernet/mellanox/mlx5/core/en_main.c +++ b/drivers/net/ethernet/mellanox/mlx5/core/en_main.c @@ -1087,8 +1087,6 @@ void mlx5e_deactivate_rq(struct mlx5e_rq *rq) void mlx5e_close_rq(struct mlx5e_rq *rq) { cancel_work_sync(&rq->dim.work); - if (rq->icosq) - cancel_work_sync(&rq->icosq->recover_work); cancel_work_sync(&rq->recover_work); mlx5e_destroy_rq(rq); mlx5e_free_rx_descs(rq); @@ -2088,6 +2086,8 @@ static int mlx5e_open_queues(struct mlx5e_channel *c, if (err) goto err_close_xdpsq_cq; + mutex_init(&c->icosq_recovery_lock); + err = mlx5e_open_icosq(c, params, &cparam->icosq, &c->icosq); if (err) goto err_close_async_icosq; @@ -2156,9 +2156,12 @@ static void mlx5e_close_queues(struct mlx5e_channel *c) mlx5e_close_xdpsq(&c->xdpsq); if (c->xdp) mlx5e_close_xdpsq(&c->rq_xdpsq); + /* The same ICOSQ is used for UMRs for both RQ and XSKRQ. */ + cancel_work_sync(&c->icosq.recover_work); mlx5e_close_rq(&c->rq); mlx5e_close_sqs(c); mlx5e_close_icosq(&c->icosq); + mutex_destroy(&c->icosq_recovery_lock); mlx5e_close_icosq(&c->async_icosq); if (c->xdp) mlx5e_close_cq(&c->rq_xdpsq.cq); |