linux-kernel - Re: [PATCH 09/15] net: hbl_en: add habanalabs Ethernet driver

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Message-ID: <21c41453-9f2d-4fb9-807f-f41e5268c7c3@habana.ai>
Date: Wed, 19 Jun 2024 12:13:09 +0000
From: Omer Shpigelman <oshpigelman@...ana.ai>
To: Stephen Hemminger <stephen@...workplumber.org>
CC: Joe Damato <jdamato@...tly.com>,
        "linux-kernel@...r.kernel.org"
	<linux-kernel@...r.kernel.org>,
        "linux-rdma@...r.kernel.org"
	<linux-rdma@...r.kernel.org>,
        "netdev@...r.kernel.org"
	<netdev@...r.kernel.org>,
        "dri-devel@...ts.freedesktop.org"
	<dri-devel@...ts.freedesktop.org>,
        "ogabbay@...nel.org" <ogabbay@...nel.org>,
        Zvika Yehudai <zyehudai@...ana.ai>
Subject: Re: [PATCH 09/15] net: hbl_en: add habanalabs Ethernet driver

On 6/19/24 00:19, Stephen Hemminger wrote:
> On Tue, 18 Jun 2024 19:37:36 +0000
> Omer Shpigelman <oshpigelman@...ana.ai> wrote:
> 
>>>
>>> Is there any reason in particular to call netif_receive_skb instead of
>>> napi_gro_receive ?
>>>   
>>
>> As you can see, we also support polling mode which is a non-NAPI flow.
>> We could use napi_gro_receive() for NAPI flow and netif_receive_skb() for
>> polling mode but we don't support RX checksum offload anyway.
> 
>  Why non-NAPI? I thought current netdev policy was all drivers should
> use NAPI.

If that's the current policy then I can remove this non-NAPI mode.
I see on another thread that module parameters are not allowed so
apparently I'll need to remove this polling mode anyway as it is set by a
module parameter.