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| author | Moshe Shemesh <moshe@mellanox.com> | 2020-10-07 09:00:55 +0300 |
|---|---|---|
| committer | Jakub Kicinski <kuba@kernel.org> | 2020-10-09 12:06:53 -0700 |
| commit | 2d69356752ff862dbb0c7e6725874740799d7708 (patch) | |
| tree | 25f6fe0bdb5ff324da73bfeca345f415dfc7bf04 /drivers/net/ethernet/mellanox/mlx5/core/fw_reset.c | |
| parent | b4f7cbb3671b9a2ea3c3315f4f5e18539881cd0c (diff) | |
| download | linux-stable-2d69356752ff862dbb0c7e6725874740799d7708.tar.gz linux-stable-2d69356752ff862dbb0c7e6725874740799d7708.tar.bz2 linux-stable-2d69356752ff862dbb0c7e6725874740799d7708.zip | |
net/mlx5: Add support for fw live patch event
Firmware live patch event notifies the driver that the firmware was just
updated using live patch. In such case the driver should not reload or
re-initiate entities, part to updating the firmware version and
re-initiate the firmware tracer which can be updated by live patch with
new strings database to help debugging an issue.
Signed-off-by: Moshe Shemesh <moshe@mellanox.com>
Reviewed-by: Saeed Mahameed <saeedm@nvidia.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Diffstat (limited to 'drivers/net/ethernet/mellanox/mlx5/core/fw_reset.c')
| -rw-r--r-- | drivers/net/ethernet/mellanox/mlx5/core/fw_reset.c | 24 |
1 files changed, 24 insertions, 0 deletions
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/fw_reset.c b/drivers/net/ethernet/mellanox/mlx5/core/fw_reset.c index b2aaff8d4fcd..f9042e147c7f 100644 --- a/drivers/net/ethernet/mellanox/mlx5/core/fw_reset.c +++ b/drivers/net/ethernet/mellanox/mlx5/core/fw_reset.c @@ -2,6 +2,7 @@ /* Copyright (c) 2020, Mellanox Technologies inc. All rights reserved. */ #include "fw_reset.h" +#include "diag/fw_tracer.h" enum { MLX5_FW_RESET_FLAGS_RESET_REQUESTED, @@ -13,6 +14,7 @@ struct mlx5_fw_reset { struct mlx5_core_dev *dev; struct mlx5_nb nb; struct workqueue_struct *wq; + struct work_struct fw_live_patch_work; struct work_struct reset_request_work; struct work_struct reset_reload_work; struct work_struct reset_now_work; @@ -192,6 +194,24 @@ static void mlx5_sync_reset_set_reset_requested(struct mlx5_core_dev *dev) mlx5_start_sync_reset_poll(dev); } +static void mlx5_fw_live_patch_event(struct work_struct *work) +{ + struct mlx5_fw_reset *fw_reset = container_of(work, struct mlx5_fw_reset, + fw_live_patch_work); + struct mlx5_core_dev *dev = fw_reset->dev; + struct mlx5_fw_tracer *tracer; + + mlx5_core_info(dev, "Live patch updated firmware version: %d.%d.%d\n", fw_rev_maj(dev), + fw_rev_min(dev), fw_rev_sub(dev)); + + tracer = dev->tracer; + if (IS_ERR_OR_NULL(tracer)) + return; + + if (mlx5_fw_tracer_reload(tracer)) + mlx5_core_err(dev, "Failed to reload FW tracer\n"); +} + static void mlx5_sync_reset_request_event(struct work_struct *work) { struct mlx5_fw_reset *fw_reset = container_of(work, struct mlx5_fw_reset, @@ -364,6 +384,9 @@ static int fw_reset_event_notifier(struct notifier_block *nb, unsigned long acti struct mlx5_eqe *eqe = data; switch (eqe->sub_type) { + case MLX5_GENERAL_SUBTYPE_FW_LIVE_PATCH_EVENT: + queue_work(fw_reset->wq, &fw_reset->fw_live_patch_work); + break; case MLX5_GENERAL_SUBTYPE_PCI_SYNC_FOR_FW_UPDATE_EVENT: mlx5_sync_reset_events_handle(fw_reset, eqe); break; @@ -421,6 +444,7 @@ int mlx5_fw_reset_init(struct mlx5_core_dev *dev) fw_reset->dev = dev; dev->priv.fw_reset = fw_reset; + INIT_WORK(&fw_reset->fw_live_patch_work, mlx5_fw_live_patch_event); INIT_WORK(&fw_reset->reset_request_work, mlx5_sync_reset_request_event); INIT_WORK(&fw_reset->reset_reload_work, mlx5_sync_reset_reload_work); INIT_WORK(&fw_reset->reset_now_work, mlx5_sync_reset_now_event); |