netdev - Re: [PATCH iwl-net] ice: fix Get Tx Topology AQ command error on E830

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Message-ID: <Z7WmcXf8J5j/ksNX@mev-dev.igk.intel.com>
Date: Wed, 19 Feb 2025 10:37:53 +0100
From: Michal Swiatkowski <michal.swiatkowski@...ux.intel.com>
To: Jacob Keller <jacob.e.keller@...el.com>
Cc: Tony Nguyen <anthony.l.nguyen@...el.com>,
	Przemek Kitszel <przemyslaw.kitszel@...el.com>,
	intel-wired-lan@...ts.osuosl.org, netdev@...r.kernel.org,
	Paul Greenwalt <paul.greenwalt@...el.com>
Subject: Re: [PATCH iwl-net] ice: fix Get Tx Topology AQ command error on E830

On Tue, Feb 18, 2025 at 04:46:34PM -0800, Jacob Keller wrote:
> From: Paul Greenwalt <paul.greenwalt@...el.com>
> 
> With E830 Get Tx Topology AQ command (opcode 0x0418) returns an error when
> setting the AQ command read flag, and since the get command is a direct
> command there is no need to set the read flag.
> 
> Fix this by only setting read flag on set command.

Why it isn't true for other hw? I mean, why not:
if (set)
	RD_FLAG
else 
	NOT_RD_FLAG
Other hw needs RD flag in case of get too?

> 

Don't you need fixes tag?
> Signed-off-by: Paul Greenwalt <paul.greenwalt@...el.com>
> Signed-off-by: Jacob Keller <jacob.e.keller@...el.com>
> ---
>  drivers/net/ethernet/intel/ice/ice_ddp.c | 10 +++++-----
>  1 file changed, 5 insertions(+), 5 deletions(-)
> 
> diff --git a/drivers/net/ethernet/intel/ice/ice_ddp.c b/drivers/net/ethernet/intel/ice/ice_ddp.c
> index 03988be03729b76e96188864896527060c8c4d5b..49bd49ab3ccf36c990144894e887341459377a2d 100644
> --- a/drivers/net/ethernet/intel/ice/ice_ddp.c
> +++ b/drivers/net/ethernet/intel/ice/ice_ddp.c
> @@ -2345,15 +2345,15 @@ ice_get_set_tx_topo(struct ice_hw *hw, u8 *buf, u16 buf_size,
>  			cmd->set_flags |= ICE_AQC_TX_TOPO_FLAGS_SRC_RAM |
>  					  ICE_AQC_TX_TOPO_FLAGS_LOAD_NEW;
>  
> -		if (ice_is_e825c(hw))
> -			desc.flags |= cpu_to_le16(ICE_AQ_FLAG_RD);
> +		desc.flags |= cpu_to_le16(ICE_AQ_FLAG_RD);
>  	} else {
>  		ice_fill_dflt_direct_cmd_desc(&desc, ice_aqc_opc_get_tx_topo);
>  		cmd->get_flags = ICE_AQC_TX_TOPO_GET_RAM;
> -	}
>  
> -	if (!ice_is_e825c(hw))
> -		desc.flags |= cpu_to_le16(ICE_AQ_FLAG_RD);
> +		if (hw->mac_type != ICE_MAC_GENERIC_3K_E825 &&
> +		    hw->mac_type != ICE_MAC_E830)
> +			desc.flags |= cpu_to_le16(ICE_AQ_FLAG_RD);
> +	}
>  
>  	status = ice_aq_send_cmd(hw, &desc, buf, buf_size, cd);
>  	if (status)
>

In general looks fine, only one question.

Thanks,
Michal

> ---
> base-commit: f5da7c45188eea71394bf445655cae2df88a7788
> change-id: 20250218-jk-e830-ddp-loading-fix-9efdbdfc270a
> 
> Best regards,
> -- 
> Jacob Keller <jacob.e.keller@...el.com>