Add a switch structure for send tags.

Move the type and function pointers for operations on existing send
tags (modify, query, next, free) out of 'struct ifnet' and into a new
'struct if_snd_tag_sw'.  A pointer to this structure is added to the
generic part of send tags and is initialized by m_snd_tag_init()
(which now accepts a switch structure as a new argument in place of
the type).

Previously, device driver ifnet methods switched on the type to call
type-specific functions.  Now, those type-specific functions are saved
in the switch structure and invoked directly.  In addition, this more
gracefully permits multiple implementations of the same tag within a
driver.  In particular, NIC TLS for future Chelsio adapters will use a
different implementation than the existing NIC TLS support for T6
adapters.

Reviewed by:	gallatin, hselasky, kib (older version)
Sponsored by:	Chelsio Communications
Differential Revision:	https://reviews.freebsd.org/D31572

1 files changed, 0 insertions, 5 deletions

diff --git a/sys/dev/mlx5/mlx5_en/en.h b/sys/dev/mlx5/mlx5_en/en.h
index 7c37a785f23c..e8d4dcda85de 100644
--- a/sys/dev/mlx5/mlx5_en/en.h
+++ b/sys/dev/mlx5/mlx5_en/en.h
@@ -1216,9 +1216,4 @@ int	mlx5e_update_buf_lossy(struct mlx5e_priv *priv);
 int	mlx5e_fec_update(struct mlx5e_priv *priv);
 int	mlx5e_hw_temperature_update(struct mlx5e_priv *priv);
 
-if_snd_tag_alloc_t mlx5e_ul_snd_tag_alloc;
-if_snd_tag_modify_t mlx5e_ul_snd_tag_modify;
-if_snd_tag_query_t mlx5e_ul_snd_tag_query;
-if_snd_tag_free_t mlx5e_ul_snd_tag_free;
-
 #endif					/* _MLX5_EN_H_ */