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From: Michal Kazior <michal.kazior@tieto.com>
To: Peter Oh <poh@codeaurora.org>
Cc: Felix Fietkau <nbd@openwrt.org>, Peter Oh <poh@qca.qualcomm.com>,
	"ath10k@lists.infradead.org" <ath10k@lists.infradead.org>,
	linux-wireless <linux-wireless@vger.kernel.org>
Subject: Re: [PATCH] ath10k: add modparam 'hw_csum' to make HW checksum configurable
Date: Thu, 17 Dec 2015 08:29:43 +0100	[thread overview]
Message-ID: <CA+BoTQmOg3gACzk5PAtkyDo1a5WJuCauOXPZKqL+cgVi+n1HCg@mail.gmail.com> (raw)
In-Reply-To: <5671F8B7.2060801@codeaurora.org>

On 17 December 2015 at 00:50, Peter Oh <poh@codeaurora.org> wrote:
> On 12/16/2015 01:54 PM, Felix Fietkau wrote:
>> On 2015-12-16 22:19, Peter Oh wrote:
[...]
>>> If mentioned to use the function to mesh frame only without touching
>>> mac80211, then how do you suggest it to apply it only to mesh frame
>>> without interfere other data frames?
>>> Can you share your example?
>>
>> It's trivial - in ath10k_tx you do this:
>>
>> if (vif->type == NL80211_IFTYPE_MESH_POINT &&
>>      skb->ip_summed == CHECKSUM_PARTIAL)
>>         skb_checksum_help(skb);
>
> Thank you Felix for the quick response.
> I agree on your user experience opinion,
> but what do you think when ath10k has a new chip supporting HW checksum for
> Mesh?

You can simply introduce a fw-feature flag saying
"supports_mesh_csum_offload" later and skip the skb_checksum_help() if
it's set.


Michał

WARNING: multiple messages have this Message-ID (diff)
From: Michal Kazior <michal.kazior@tieto.com>
To: Peter Oh <poh@codeaurora.org>
Cc: Felix Fietkau <nbd@openwrt.org>,
	linux-wireless <linux-wireless@vger.kernel.org>,
	"ath10k@lists.infradead.org" <ath10k@lists.infradead.org>,
	Peter Oh <poh@qca.qualcomm.com>
Subject: Re: [PATCH] ath10k: add modparam 'hw_csum' to make HW checksum configurable
Date: Thu, 17 Dec 2015 08:29:43 +0100	[thread overview]
Message-ID: <CA+BoTQmOg3gACzk5PAtkyDo1a5WJuCauOXPZKqL+cgVi+n1HCg@mail.gmail.com> (raw)
In-Reply-To: <5671F8B7.2060801@codeaurora.org>

On 17 December 2015 at 00:50, Peter Oh <poh@codeaurora.org> wrote:
> On 12/16/2015 01:54 PM, Felix Fietkau wrote:
>> On 2015-12-16 22:19, Peter Oh wrote:
[...]
>>> If mentioned to use the function to mesh frame only without touching
>>> mac80211, then how do you suggest it to apply it only to mesh frame
>>> without interfere other data frames?
>>> Can you share your example?
>>
>> It's trivial - in ath10k_tx you do this:
>>
>> if (vif->type == NL80211_IFTYPE_MESH_POINT &&
>>      skb->ip_summed == CHECKSUM_PARTIAL)
>>         skb_checksum_help(skb);
>
> Thank you Felix for the quick response.
> I agree on your user experience opinion,
> but what do you think when ath10k has a new chip supporting HW checksum for
> Mesh?

You can simply introduce a fw-feature flag saying
"supports_mesh_csum_offload" later and skip the skb_checksum_help() if
it's set.


Michał

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ath10k@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/ath10k

  parent reply	other threads:[~2015-12-17  7:29 UTC|newest]

Thread overview: 30+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2015-12-16 18:20 [PATCH] ath10k: add modparam 'hw_csum' to make HW checksum configurable Peter Oh
2015-12-16 18:20 ` Peter Oh
2015-12-16 18:27 ` Felix Fietkau
2015-12-16 18:27   ` Felix Fietkau
2015-12-16 20:29   ` Peter Oh
2015-12-16 20:29     ` Peter Oh
2015-12-16 20:35     ` Felix Fietkau
2015-12-16 20:35       ` Felix Fietkau
2015-12-16 20:46       ` Peter Oh
2015-12-16 20:46         ` Peter Oh
2015-12-16 20:53         ` Felix Fietkau
2015-12-16 20:53           ` Felix Fietkau
2015-12-16 21:19           ` Peter Oh
2015-12-16 21:19             ` Peter Oh
2015-12-16 21:54             ` Felix Fietkau
2015-12-16 21:54               ` Felix Fietkau
2015-12-16 23:50               ` Peter Oh
2015-12-16 23:50                 ` Peter Oh
2015-12-16 23:59                 ` Felix Fietkau
2015-12-16 23:59                   ` Felix Fietkau
2015-12-17 22:01                   ` Peter Oh
2015-12-17 22:01                     ` Peter Oh
2015-12-17 22:57                     ` Felix Fietkau
2015-12-17 22:57                       ` Felix Fietkau
2015-12-17 23:16                       ` Peter Oh
2015-12-17 23:16                         ` Peter Oh
2015-12-17  7:29                 ` Michal Kazior [this message]
2015-12-17  7:29                   ` Michal Kazior
2015-12-17 21:55                   ` Peter Oh
2015-12-17 21:55                     ` Peter Oh

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