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net/mlx5: Add Fast teardown support

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Today mlx5 devices support two teardown modes:
1- Regular teardown
2- Force teardown

This change introduces the enhanced version of the "Force teardown" that
allows SW to perform teardown in a faster way without the need to reclaim
all the pages.

Fast teardown provides the following advantages:
1- Fix a FW race condition that could cause command timeout
2- Avoid moving to polling mode
3- Close the vport to prevent PCI ACK to be sent without been scatter
to memory

Signed-off-by: Feras Daoud <ferasda@mellanox.com>
Reviewed-by: Majd Dibbiny <majd@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
This commit is contained in:
Feras Daoud
2018-08-09 09:55:21 +03:00
committed by Saeed Mahameed
parent 94563847a8
commit fcd29ad17c
6 changed files with 104 additions and 24 deletions
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4
include/linux/mlx5/device.h
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@@ -504,6 +504,10 @@ struct health_buffer {
__be16 ext_synd;
};
enum mlx5_cmd_addr_l_sz_offset {
MLX5_NIC_IFC_OFFSET = 8,
};
struct mlx5_init_seg {
__be32 fw_rev;
__be32 cmdif_rev_fw_sub;