linux-kernel - Re: [PATCH v4 net-next] net: mana: Add a driver for Microsoft Azure Network Adapter (MANA)

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Message-ID: <YHQ5/fJyvkTHzBqA@lunn.ch>
Date:   Mon, 12 Apr 2021 14:15:57 +0200
From:   Andrew Lunn <andrew@...n.ch>
To:     Dexuan Cui <decui@...rosoft.com>
Cc:     davem@...emloft.net, kuba@...nel.org, kys@...rosoft.com,
        haiyangz@...rosoft.com, sthemmin@...rosoft.com, wei.liu@...nel.org,
        liuwe@...rosoft.com, netdev@...r.kernel.org, leon@...nel.org,
        bernd@...rovitsch.priv.at, rdunlap@...radead.org,
        shacharr@...rosoft.com, linux-kernel@...r.kernel.org,
        linux-hyperv@...r.kernel.org
Subject: Re: [PATCH v4 net-next] net: mana: Add a driver for Microsoft Azure
 Network Adapter (MANA)

> +static inline bool is_gdma_msg(const void *req)
> +{
> +	struct gdma_req_hdr *hdr = (struct gdma_req_hdr *)req;
> +
> +	if (hdr->req.hdr_type == GDMA_STANDARD_HEADER_TYPE &&
> +	    hdr->resp.hdr_type == GDMA_STANDARD_HEADER_TYPE &&
> +	    hdr->req.msg_size >= sizeof(struct gdma_req_hdr) &&
> +	    hdr->resp.msg_size >= sizeof(struct gdma_resp_hdr) &&
> +	    hdr->req.msg_type != 0 && hdr->resp.msg_type != 0)
> +		return true;
> +
> +	return false;
> +}
> +
> +static inline bool is_gdma_msg_len(const u32 req_len, const u32 resp_len,
> +				   const void *req)
> +{
> +	struct gdma_req_hdr *hdr = (struct gdma_req_hdr *)req;
> +
> +	if (req_len >= sizeof(struct gdma_req_hdr) &&
> +	    resp_len >= sizeof(struct gdma_resp_hdr) &&
> +	    req_len >= hdr->req.msg_size && resp_len >= hdr->resp.msg_size &&
> +	    is_gdma_msg(req)) {
> +		return true;
> +	}
> +
> +	return false;
> +}

You missed adding the mana_ prefix here. There might be others.

> +#define CQE_POLLING_BUFFER 512
> +struct ana_eq {
> +	struct gdma_queue *eq;
> +	struct gdma_comp cqe_poll[CQE_POLLING_BUFFER];
> +};

> +static int ana_poll(struct napi_struct *napi, int budget)
> +{

You also have a few cases of ana_, not mana_. There might be others.

    Andrew