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mlx5core: Don't query the PCI config space for offline during a firmware command.

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Querying the PCI config space for offline for every firmware command blocks
the PCI bus and affects performance. Especially for packet pacing and TLS
when objects are frequently created and destroyed.

MFC after:	1 week
Reviewed by:	kib
Sponsored by:	Mellanox Technologies // NVIDIA Networking
This commit is contained in:
Hans Petter Selasky 2021-06-16 15:01:54 +02:00
parent c3987b8ea7
commit e787b5acb1
1 changed files with 1 additions and 2 deletions
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3
sys/dev/mlx5/mlx5_core/mlx5_cmd.c
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@ -1287,8 +1287,7 @@ static int cmd_exec_helper(struct mlx5_core_dev *dev,
u8 status = 0;
u32 drv_synd;
if (pci_channel_offline(dev->pdev) ||
dev->state == MLX5_DEVICE_STATE_INTERNAL_ERROR) {
if (dev->state == MLX5_DEVICE_STATE_INTERNAL_ERROR) {
u16 opcode = MLX5_GET(mbox_in, in, opcode);
err = mlx5_internal_err_ret_value(dev, opcode, &drv_synd, &status);
MLX5_SET(mbox_out, out, status, status);