Re: [PATCH iwl-net v2 3/3] ice: support RDMA on 4+-port E830 devices

[Simon Horman <horms@kernel.org>]

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Full review at: https://sashiko.dev/#/patchset/20260915125529.3975723-3-aleksandr.loktionov@intel.com?part=3
---
ice: support RDMA on 4+-port E830 devices

This patch updates the ice driver to support RDMA on E830 devices configured
with more than 4 ports. It modifies the port limit check to skip disabling
RDMA capabilities for E830 hardware.

> diff --git a/drivers/net/ethernet/intel/ice/ice_common.c b/drivers/net/ethernet/intel/ice/ice_common.c
> index 04633103e3e61..d85ae6d1c309a 100644
> --- a/drivers/net/ethernet/intel/ice/ice_common.c
> +++ b/drivers/net/ethernet/intel/ice/ice_common.c
> @@ -2510,7 +2510,7 @@ ice_recalc_port_limited_caps(struct ice_hw *hw, struct ice_hw_common_caps *caps)
>  		caps->maxtc = 4;
>  		ice_debug(hw, ICE_DBG_INIT, "reducing maxtc to %d (based on #ports)\n",
>  			  caps->maxtc);
> -		if (caps->rdma) {
> +		if (caps->rdma && hw->mac_type != ICE_MAC_E830) {
>  			ice_debug(hw, ICE_DBG_INIT, "forcing RDMA off\n");
>  			caps->rdma = 0;
>  		}

[Severity: Medium]
Will this still log an inaccurate warning for E830 devices?

While this patch successfully preserves the RDMA capability for E830 hardware
with more than 4 ports, the code immediately following this block in
ice_recalc_port_limited_caps() remains:

		/* print message only when processing device capabilities
		 * during initialization.
		 */
		if (caps == &hw->dev_caps.common_cap)
			dev_info(ice_hw_to_dev(hw), "RDMA functionality is not available with the current device configuration.\n");

Because hw->dev_caps.num_funcs > 4 is true, will E830 devices incorrectly
trigger this warning during initialization even though RDMA remains enabled?