linux-kernel - Re: [PATCH net-next] Add bnxt_netlink to facilitate representor pair configurations.

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Message-ID: <3987add6-4928-4cd9-9fe6-a232f202ecc6@lunn.ch>
Date:   Sat, 5 Aug 2023 22:24:31 +0200
From:   Andrew Lunn <andrew@...n.ch>
To:     Matthew Cover <werekraken@...il.com>
Cc:     Michael Chan <michael.chan@...adcom.com>,
        "David S. Miller" <davem@...emloft.net>,
        Eric Dumazet <edumazet@...gle.com>,
        Jakub Kicinski <kuba@...nel.org>,
        Paolo Abeni <pabeni@...hat.com>,
        Richard Cochran <richardcochran@...il.com>,
        Alexei Starovoitov <ast@...nel.org>,
        Daniel Borkmann <daniel@...earbox.net>,
        Jesper Dangaard Brouer <hawk@...nel.org>,
        John Fastabend <john.fastabend@...il.com>,
        Matthew Cover <matthew.cover@...ckpath.com>,
        linux-kernel@...r.kernel.org, netdev@...r.kernel.org,
        bpf@...r.kernel.org
Subject: Re: [PATCH net-next] Add bnxt_netlink to facilitate representor pair
 configurations.

On Fri, Aug 04, 2023 at 02:29:54PM -0700, Matthew Cover wrote:
> To leverage the SmartNIC capabilities available in Broadcom
> NetXtreme-C/E ethernet devices, representor pairs must be configured
> via bnxt-ctl

Could you give a link to the bnxt-ctl sources. Also give a brief
description of what they do. 

> @@ -0,0 +1,231 @@
> +/* Broadcom NetXtreme-C/E network driver.
> + *
> + * Copyright (c) 2014-2016 Broadcom Corporation
> + * Copyright (c) 2016-2017 Broadcom Limited
> + *
> + * This program is free software; you can redistribute it and/or modify
> + * it under the terms of the GNU General Public License as published by
> + * the Free Software Foundation.

Please remove the license boilerplate and use a SPDX-License-Identifier.

> + */
> +#include <linux/netdevice.h>
> +#include <linux/pci.h>
> +#include "bnxt_hsi.h"
> +#include "bnxt_netlink.h"
> +#include "bnxt.h"
> +#include "bnxt_hwrm.h"
> +
> +/* attribute policy */
> +static struct nla_policy bnxt_netlink_policy[BNXT_NUM_ATTRS] = {
> +	[BNXT_ATTR_PID] = { .type = NLA_U32 },
> +	[BNXT_ATTR_IF_INDEX] = { .type = NLA_U32 },
> +	[BNXT_ATTR_REQUEST] = { .type = NLA_BINARY },
> +	[BNXT_ATTR_RESPONSE] = { .type = NLA_BINARY },

Passing binary blobs from user space to firmware will not be
accepted. You need well defined and documented individual commands.


    Andrew

---
pw-bot: cr