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| author | Huy Nguyen | 2018-03-22 03:10:22 +0100 |
|---|---|---|
| committer | Saeed Mahameed | 2018-05-24 23:23:33 +0200 |
| commit | 0696d60853d58f1b9431bc689e4e4526845b790a (patch) | |
| tree | 08ef41cc3e91aa751867ddc25c4e55329c510dec /drivers/net/ethernet/mellanox/mlx5/core/en.h | |
| parent | net/mlx5: PPTB and PBMC register firmware command support (diff) | |
| download | kernel-qcow2-linux-0696d60853d58f1b9431bc689e4e4526845b790a.tar.gz kernel-qcow2-linux-0696d60853d58f1b9431bc689e4e4526845b790a.tar.xz kernel-qcow2-linux-0696d60853d58f1b9431bc689e4e4526845b790a.zip | |
net/mlx5e: Receive buffer configuration
Add APIs for buffer configuration based on the changes in
pfc configuration, cable len, buffer size configuration,
and priority to buffer mapping.
Note that the xoff fomula is as below
xoff = ((301+2.16 * len [m]) * speed [Gbps] + 2.72 MTU [B]
xoff_threshold = buffer_size - xoff
xon_threshold = xoff_threshold - MTU
Signed-off-by: Huy Nguyen <huyn@mellanox.com>
Reviewed-by: Parav Pandit <parav@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
Diffstat (limited to 'drivers/net/ethernet/mellanox/mlx5/core/en.h')
| -rw-r--r-- | drivers/net/ethernet/mellanox/mlx5/core/en.h | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/en.h b/drivers/net/ethernet/mellanox/mlx5/core/en.h index d13a86a1d702..9ab7158a7ce7 100644 --- a/drivers/net/ethernet/mellanox/mlx5/core/en.h +++ b/drivers/net/ethernet/mellanox/mlx5/core/en.h @@ -65,6 +65,7 @@ struct page_pool; #define MLX5E_HW2SW_MTU(params, hwmtu) ((hwmtu) - ((params)->hard_mtu)) #define MLX5E_SW2HW_MTU(params, swmtu) ((swmtu) + ((params)->hard_mtu)) +#define MLX5E_MAX_PRIORITY 8 #define MLX5E_MAX_DSCP 64 #define MLX5E_MAX_NUM_TC 8 @@ -275,6 +276,10 @@ struct mlx5e_dcbx { /* The only setting that cannot be read from FW */ u8 tc_tsa[IEEE_8021QAZ_MAX_TCS]; u8 cap; + + /* Buffer configuration */ + u32 cable_len; + u32 xoff; }; struct mlx5e_dcbx_dp { |