linux-kernel - Re: [PATCH net-next 1/3] eth: fbnic: hwmon: Add completion infrastructure for firmware requests

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Message-ID: <Z4YgpZ+QgV6w7BYR@mev-dev.igk.intel.com>
Date: Tue, 14 Jan 2025 09:30:29 +0100
From: Michal Swiatkowski <michal.swiatkowski@...ux.intel.com>
To: Sanman Pradhan <sanman.p211993@...il.com>
Cc: netdev@...r.kernel.org, alexanderduyck@...com, kuba@...nel.org,
	kernel-team@...a.com, andrew+netdev@...n.ch, davem@...emloft.net,
	edumazet@...gle.com, pabeni@...hat.com,
	kalesh-anakkur.purayil@...adcom.com, linux@...ck-us.net,
	mohsin.bashr@...il.com, jdelvare@...e.com, horms@...nel.org,
	suhui@...china.com, linux-kernel@...r.kernel.org,
	vadim.fedorenko@...ux.dev, linux-hwmon@...r.kernel.org,
	sanmanpradhan@...a.com
Subject: Re: [PATCH net-next 1/3] eth: fbnic: hwmon: Add completion
 infrastructure for firmware requests

On Mon, Jan 13, 2025 at 04:07:03PM -0800, Sanman Pradhan wrote:
> Add infrastructure to support firmware request/response handling with
> completions. Add a completion structure to track message state including
> message type for matching, completion for waiting for response, and
> result for error propagation. Use existing spinlock to protect the writes.
> The data from the various response types will be added to the "union u"
> by subsequent commits.
> 
> Signed-off-by: Sanman Pradhan <sanman.p211993@...il.com>
> ---
>  drivers/net/ethernet/meta/fbnic/fbnic.h    |  1 +
>  drivers/net/ethernet/meta/fbnic/fbnic_fw.c | 79 ++++++++++++++++++++++
>  drivers/net/ethernet/meta/fbnic/fbnic_fw.h | 13 ++++
>  3 files changed, 93 insertions(+)
> 
> diff --git a/drivers/net/ethernet/meta/fbnic/fbnic.h b/drivers/net/ethernet/meta/fbnic/fbnic.h
> index 50f97f5399ff..ad8ac5ac7be9 100644
> --- a/drivers/net/ethernet/meta/fbnic/fbnic.h
> +++ b/drivers/net/ethernet/meta/fbnic/fbnic.h
> @@ -41,6 +41,7 @@ struct fbnic_dev {
> 
>  	struct fbnic_fw_mbx mbx[FBNIC_IPC_MBX_INDICES];
>  	struct fbnic_fw_cap fw_cap;
> +	struct fbnic_fw_completion *cmpl_data;
>  	/* Lock protecting Tx Mailbox queue to prevent possible races */
>  	spinlock_t fw_tx_lock;
> 
> diff --git a/drivers/net/ethernet/meta/fbnic/fbnic_fw.c b/drivers/net/ethernet/meta/fbnic/fbnic_fw.c
> index 8f7a2a19ddf8..320615a122e4 100644
> --- a/drivers/net/ethernet/meta/fbnic/fbnic_fw.c
> +++ b/drivers/net/ethernet/meta/fbnic/fbnic_fw.c
> @@ -228,6 +228,63 @@ static void fbnic_mbx_process_tx_msgs(struct fbnic_dev *fbd)
>  	tx_mbx->head = head;
>  }
> 

[...]

Reviewed-by: Michal Swiatkowski <michal.swiatkowski@...ux.intel.com>

> --
> 2.43.5