Re: [PATCH net-next 1/3] net/mlx5: Enable 8 ports LAG

[Simon Horman <horms@kernel.org>]

On Sun, May 12, 2024 at 03:43:03PM +0300, Tariq Toukan wrote:
> From: Shay Drory <shayd@nvidia.com>
> 
> This patch adds to mlx5 drivers support for 8 ports HCAs.
> Starting with ConnectX-8 HCAs with 8 ports are possible.
> 
> As most driver parts aren't affected by such configuration most driver
> code is unchanged.
> 
> Specially the only affected areas are:
> - Lag
> - Multiport E-Switch
> - Single FDB E-Switch
> 
> All of the above are already factored in generic way, and LAG and VF LAG
> are tested, so all that left is to change a #define and remove checks
> which are no longer needed.
> However, Multiport E-Switch is not tested yet, so it is left untouched.
> 
> This patch will allow to create hardware LAG/VF LAG when all 8 ports are
> added to the same bond device.
> 
> for example, In order to activate the hardware lag a user can execute
> the following:
> 
> ip link add bond0 type bond
> ip link set bond0 type bond miimon 100 mode 2
> ip link set eth2 master bond0
> ip link set eth3 master bond0
> ip link set eth4 master bond0
> ip link set eth5 master bond0
> ip link set eth6 master bond0
> ip link set eth7 master bond0
> ip link set eth8 master bond0
> ip link set eth9 master bond0
> 
> Where eth2, eth3, eth4, eth5, eth6, eth7, eth8 and eth9 are the PFs of
> the same HCA.
> 
> Signed-off-by: Shay Drory <shayd@nvidia.com>
> Reviewed-by: Mark Bloch <mbloch@nvidia.com>
> Signed-off-by: Tariq Toukan <tariqt@nvidia.com>

Reviewed-by: Simon Horman <horms@kernel.org>