netdev - Re: [PATCH iwl-next v2] ixgbe: add support for thermal sensor event reception

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Message-ID: <fc56c1bc-b0d6-467d-8b3d-7635a2a424f3@intel.com>
Date: Tue, 4 Feb 2025 09:30:08 +0100
From: Mateusz Polchlopek <mateusz.polchlopek@...el.com>
To: Jedrzej Jagielski <jedrzej.jagielski@...el.com>,
	<intel-wired-lan@...ts.osuosl.org>
CC: <anthony.l.nguyen@...el.com>, <netdev@...r.kernel.org>,
	<pmenzel@...gen.mpg.de>, Przemek Kitszel <przemyslaw.kitszel@...el.com>
Subject: Re: [PATCH iwl-next v2] ixgbe: add support for thermal sensor event
 reception



On 2/4/2025 8:17 AM, Jedrzej Jagielski wrote:
> E610 NICs unlike the previous devices utilising ixgbe driver
> are notified in the case of overheatning by the FW ACI event.
> 
> In event of overheat when treshold is exceeded, FW suspends all
> traffic and sends overtemp event to the driver. Then driver
> logs appropriate message and closes the adapter instance.
> The card remains in that state until the platform is rebooted.
> 
> Reviewed-by: Przemek Kitszel <przemyslaw.kitszel@...el.com>
> Signed-off-by: Jedrzej Jagielski <jedrzej.jagielski@...el.com>
> ---
> v2: commit msg tweaks
> ---
>   drivers/net/ethernet/intel/ixgbe/ixgbe_main.c      | 5 +++++
>   drivers/net/ethernet/intel/ixgbe/ixgbe_type_e610.h | 3 +++
>   2 files changed, 8 insertions(+)
> 
> diff --git a/drivers/net/ethernet/intel/ixgbe/ixgbe_main.c b/drivers/net/ethernet/intel/ixgbe/ixgbe_main.c
> index 7236f20c9a30..5c804948dd1f 100644
> --- a/drivers/net/ethernet/intel/ixgbe/ixgbe_main.c
> +++ b/drivers/net/ethernet/intel/ixgbe/ixgbe_main.c
> @@ -3165,6 +3165,7 @@ static void ixgbe_aci_event_cleanup(struct ixgbe_aci_event *event)
>   static void ixgbe_handle_fw_event(struct ixgbe_adapter *adapter)
>   {
>   	struct ixgbe_aci_event event __cleanup(ixgbe_aci_event_cleanup);
> +	struct net_device *netdev = adapter->netdev;
>   	struct ixgbe_hw *hw = &adapter->hw;
>   	bool pending = false;
>   	int err;
> @@ -3185,6 +3186,10 @@ static void ixgbe_handle_fw_event(struct ixgbe_adapter *adapter)
>   		case ixgbe_aci_opc_get_link_status:
>   			ixgbe_handle_link_status_event(adapter, &event);
>   			break;
> +		case ixgbe_aci_opc_temp_tca_event:
> +			e_crit(drv, "%s\n", ixgbe_overheat_msg);
> +			ixgbe_close(netdev);
> +			break;
>   		default:
>   			e_warn(hw, "unknown FW async event captured\n");
>   			break;
> diff --git a/drivers/net/ethernet/intel/ixgbe/ixgbe_type_e610.h b/drivers/net/ethernet/intel/ixgbe/ixgbe_type_e610.h
> index 8d06ade3c7cd..617e07878e4f 100644
> --- a/drivers/net/ethernet/intel/ixgbe/ixgbe_type_e610.h
> +++ b/drivers/net/ethernet/intel/ixgbe/ixgbe_type_e610.h
> @@ -171,6 +171,9 @@ enum ixgbe_aci_opc {
>   	ixgbe_aci_opc_done_alt_write			= 0x0904,
>   	ixgbe_aci_opc_clear_port_alt_write		= 0x0906,
>   
> +	/* TCA Events */
> +	ixgbe_aci_opc_temp_tca_event                    = 0x0C94,
> +
>   	/* debug commands */
>   	ixgbe_aci_opc_debug_dump_internals		= 0xFF08,
>   

Thanks for this change Jedrzej

Reviewed-by: Mateusz Polchlopek <mateusz.polchlopek@...el.com>