net/mlx5: Manage ICM type of SW encap

Support allocate/deallocate the new SW encap ICM type memory.
The new ICM type is used for encap context allocation managed by SW,
instead FW. It can increase encap context maximum number and allocation
speed

Signed-off-by: Shun Hao <shunh@nvidia.com>
Link: https://lore.kernel.org/r/bed5121255918eb132a1334141c76a0594df8143.1701871118.git.leon@kernel.org
Signed-off-by: Leon Romanovsky <leon@kernel.org>

net/mlx5: Use the bitmap API to allocate bitmaps

Use bitmap_zalloc()/bitmap_free() instead of hand-writing them.

It is less verbose and it improves the semantic.

Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
Signed-off-by: Saeed Mahameed <saeedm@nvidia.com>

net/mlx5: Manage ICM of type modify-header pattern

Added support for managing new type of ICM for devices that
support sw_owner_v2.

Signed-off-by: Erez Shitrit <erezsh@mellanox.com>
Signed-off-by: Yevgeny Kliteynik <kliteyn@nvidia.com>
Signed-off-by: Leon Romanovsky <leonro@nvidia.com>
Acked-by: Saeed Mahameed <saeedm@nvidia.com>
Signed-off-by: Saeed Mahameed <saeedm@nvidia.com>

net/mlx5: Use aligned variable while allocating ICM memory

The alignment value is part of the input structure, so use it and spare
extra memory allocation when is not needed.
Now, using the new ability when allocating icm for Direct-Rule
insertion.
Signed-off-by: Ariel Levkovich <lariel@mellanox.com>
Signed-off-by: Erez Shitrit <erezsh@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>

net/mlx5: sparse: warning: Using plain integer as NULL pointer

Return NULL instead of 0.

Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
Reviewed-by: Moshe Shemesh <moshe@mellanox.com>

net/mlx5: Move device memory management to mlx5_core

Move the device memory allocation and deallocation commands
SW ICM memory to mlx5_core to expose this API for all
mlx5_core users.

This comes as preparation for supporting SW steering in kernel
where it will be required to allocate and register device
memory for direct rule insertion.

In addition, an API to register this device memory for future
remote access operations is introduced using the create_mkey
commands.

Signed-off-by: Ariel Levkovich <lariel@mellanox.com>
Reviewed-by: Mark Bloch <markb@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>