Date: Thu, 10 Jul 2025 14:42:51 GMT From: Konstantin Belousov <kib@FreeBSD.org> To: src-committers@FreeBSD.org, dev-commits-src-all@FreeBSD.org, dev-commits-src-main@FreeBSD.org Subject: git: b6b3743fa27d - main - mlx5en: add driver tls status string method for rx sessions Message-ID: <202507101442.56AEgpqq015178@gitrepo.freebsd.org>
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The branch main has been updated by kib: URL: https://cgit.FreeBSD.org/src/commit/?id=b6b3743fa27dc1d5dc239ea312bec0858b0791fd commit b6b3743fa27dc1d5dc239ea312bec0858b0791fd Author: Ariel Ehrenberg <aehrenberg@nvidia.com> AuthorDate: 2025-07-08 22:22:56 +0000 Commit: Konstantin Belousov <kib@FreeBSD.org> CommitDate: 2025-07-10 14:42:27 +0000 mlx5en: add driver tls status string method for rx sessions Upon collecting tls information, kernel calls driver to get driver/hw tls state. Driver calls hw to get its tracking and authentication states, and dump them into the driver state buffer. This requires a sleep to wait for the hw response. Reviewed by: kib Sponsored by: NVidia networking --- sys/dev/mlx5/mlx5_en/mlx5_en_hw_tls_rx.c | 94 +++++++++++++++++++++++++++++++- 1 file changed, 91 insertions(+), 3 deletions(-) diff --git a/sys/dev/mlx5/mlx5_en/mlx5_en_hw_tls_rx.c b/sys/dev/mlx5/mlx5_en/mlx5_en_hw_tls_rx.c index 5f95a03441f9..4de451f1b039 100644 --- a/sys/dev/mlx5/mlx5_en/mlx5_en_hw_tls_rx.c +++ b/sys/dev/mlx5/mlx5_en/mlx5_en_hw_tls_rx.c @@ -42,13 +42,30 @@ static if_snd_tag_free_t mlx5e_tls_rx_snd_tag_free; static if_snd_tag_modify_t mlx5e_tls_rx_snd_tag_modify; +static if_snd_tag_status_str_t mlx5e_tls_rx_snd_tag_status_str; static const struct if_snd_tag_sw mlx5e_tls_rx_snd_tag_sw = { .snd_tag_modify = mlx5e_tls_rx_snd_tag_modify, .snd_tag_free = mlx5e_tls_rx_snd_tag_free, + .snd_tag_status_str = mlx5e_tls_rx_snd_tag_status_str, .type = IF_SND_TAG_TYPE_TLS_RX }; +static const char *mlx5e_tls_rx_progress_params_auth_state_str[] = { + [MLX5E_TLS_RX_PROGRESS_PARAMS_AUTH_STATE_NO_OFFLOAD] = "no_offload", + [MLX5E_TLS_RX_PROGRESS_PARAMS_AUTH_STATE_OFFLOAD] = "offload", + [MLX5E_TLS_RX_PROGRESS_PARAMS_AUTH_STATE_AUTHENTICATION] = + "authentication", +}; + +static const char *mlx5e_tls_rx_progress_params_record_tracker_state_str[] = { + [MLX5E_TLS_RX_PROGRESS_PARAMS_RECORD_TRACKER_STATE_START] = "start", + [MLX5E_TLS_RX_PROGRESS_PARAMS_RECORD_TRACKER_STATE_TRACKING] = + "tracking", + [MLX5E_TLS_RX_PROGRESS_PARAMS_RECORD_TRACKER_STATE_SEARCHING] = + "searching", +}; + MALLOC_DEFINE(M_MLX5E_TLS_RX, "MLX5E_TLS_RX", "MLX5 ethernet HW TLS RX"); /* software TLS RX context */ @@ -332,7 +349,8 @@ done: * Zero is returned upon success, else some error happened. */ static int -mlx5e_tls_rx_receive_progress_parameters(struct mlx5e_iq *iq, struct mlx5e_tls_rx_tag *ptag) +mlx5e_tls_rx_receive_progress_parameters(struct mlx5e_iq *iq, + struct mlx5e_tls_rx_tag *ptag, mlx5e_iq_callback_t *cb) { struct mlx5e_get_tls_progress_params_wqe *wqe; const u32 ds_cnt = DIV_ROUND_UP(sizeof(*wqe), MLX5_SEND_WQE_DS); @@ -368,7 +386,7 @@ mlx5e_tls_rx_receive_progress_parameters(struct mlx5e_iq *iq, struct mlx5e_tls_r memcpy(iq->doorbell.d32, &wqe->ctrl, sizeof(iq->doorbell.d32)); iq->data[pi].num_wqebbs = DIV_ROUND_UP(ds_cnt, MLX5_SEND_WQEBB_NUM_DS); - iq->data[pi].callback = &mlx5e_tls_rx_receive_progress_parameters_cb; + iq->data[pi].callback = cb; iq->data[pi].arg = ptag; m_snd_tag_ref(&ptag->tag); @@ -820,6 +838,7 @@ mlx5e_tls_rx_snd_tag_alloc(if_t ifp, } ptag->flow_rule = flow_rule; + init_completion(&ptag->progress_complete); return (0); @@ -969,7 +988,8 @@ mlx5e_tls_rx_snd_tag_modify(struct m_snd_tag *pmt, union if_snd_tag_modify_param params->tls_rx.tls_rec_length, params->tls_rx.tls_seq_number) && ptag->tcp_resync_pending == 0) { - err = mlx5e_tls_rx_receive_progress_parameters(iq, ptag); + err = mlx5e_tls_rx_receive_progress_parameters(iq, ptag, + &mlx5e_tls_rx_receive_progress_parameters_cb); if (err != 0) { MLX5E_TLS_RX_STAT_INC(ptag, rx_resync_err, 1); } else { @@ -1002,6 +1022,74 @@ mlx5e_tls_rx_snd_tag_free(struct m_snd_tag *pmt) queue_work(priv->tls_rx.wq, &ptag->work); } +static void +mlx5e_tls_rx_str_status_cb(void *arg) +{ + struct mlx5e_tls_rx_tag *ptag; + + ptag = (struct mlx5e_tls_rx_tag *)arg; + complete_all(&ptag->progress_complete); + m_snd_tag_rele(&ptag->tag); +} + +static int +mlx5e_tls_rx_snd_tag_status_str(struct m_snd_tag *pmt, char *buf, size_t *sz) +{ + int err, out_size; + struct mlx5e_iq *iq; + void *buffer; + uint32_t tracker_state_val; + uint32_t auth_state_val; + struct mlx5e_priv *priv; + struct mlx5e_tls_rx_tag *ptag = + container_of(pmt, struct mlx5e_tls_rx_tag, tag); + + if (buf == NULL) + return (0); + + MLX5E_TLS_RX_TAG_LOCK(ptag); + priv = container_of(ptag->tls_rx, struct mlx5e_priv, tls_rx); + iq = mlx5e_tls_rx_get_iq(priv, ptag->flowid, ptag->flowtype); + reinit_completion(&ptag->progress_complete); + err = mlx5e_tls_rx_receive_progress_parameters(iq, ptag, + &mlx5e_tls_rx_str_status_cb); + MLX5E_TLS_RX_TAG_UNLOCK(ptag); + if (err != 0) + return (err); + + for (;;) { + if (wait_for_completion_timeout(&ptag->progress_complete, + msecs_to_jiffies(1000)) != 0) + break; + if (priv->mdev->state == MLX5_DEVICE_STATE_INTERNAL_ERROR || + pci_channel_offline(priv->mdev->pdev) != 0) + return (ENXIO); + } + buffer = mlx5e_tls_rx_get_progress_buffer(ptag); + tracker_state_val = MLX5_GET(tls_progress_params, buffer, + record_tracker_state); + auth_state_val = MLX5_GET(tls_progress_params, buffer, auth_state); + + /* Validate tracker state value is in range */ + if (tracker_state_val > + MLX5E_TLS_RX_PROGRESS_PARAMS_RECORD_TRACKER_STATE_SEARCHING) + return (EINVAL); + + /* Validate auth state value is in range */ + if (auth_state_val > + MLX5E_TLS_RX_PROGRESS_PARAMS_AUTH_STATE_AUTHENTICATION) + return (EINVAL); + + out_size = snprintf(buf, *sz, "tracker_state: %s, auth_state: %s", + mlx5e_tls_rx_progress_params_record_tracker_state_str[ + tracker_state_val], + mlx5e_tls_rx_progress_params_auth_state_str[auth_state_val]); + + if (out_size <= *sz) + *sz = out_size; + return (0); +} + #else int
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