netdev - Re: [PATCH 3/3] rocker: set feature NETIF_F_HW_SWITCH

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Date:	Thu, 04 Dec 2014 22:38:56 -0800
From:	John Fastabend <john.fastabend@...il.com>
To:	Scott Feldman <sfeldma@...il.com>
CC:	Jianhua Xie <jianhua.xie@...escale.com>,
	Roopa Prabhu <roopa@...ulusnetworks.com>,
	Jiří Pírko <jiri@...nulli.us>,
	Jamal Hadi Salim <jhs@...atatu.com>,
	Benjamin LaHaise <bcrl@...ck.org>, Thomas Graf <tgraf@...g.ch>,
	"stephen@...workplumber.org" <stephen@...workplumber.org>,
	John Linville <linville@...driver.com>,
	"nhorman@...driver.com" <nhorman@...driver.com>,
	Nicolas Dichtel <nicolas.dichtel@...nd.com>,
	"vyasevic@...hat.com" <vyasevic@...hat.com>,
	Florian Fainelli <f.fainelli@...il.com>,
	"buytenh@...tstofly.org" <buytenh@...tstofly.org>,
	Aviad Raveh <aviadr@...lanox.com>,
	Netdev <netdev@...r.kernel.org>,
	"David S. Miller" <davem@...emloft.net>, shm@...ulusnetworks.com,
	Andy Gospodarek <gospo@...ulusnetworks.com>
Subject: Re: [PATCH 3/3] rocker: set feature NETIF_F_HW_SWITCH_OFFLOAD

On 12/04/2014 10:16 PM, Scott Feldman wrote:
> On Thu, Dec 4, 2014 at 7:25 PM, Jianhua Xie <jianhua.xie@...escale.com> wrote:
>>
>> 在 2014年12月05日 10:26, roopa@...ulusnetworks.com 写道:
>>
>>> From: Roopa Prabhu <roopa@...ulusnetworks.com>
>>>
>>> This patch just sets the feature flag on rocker ports
>>> ---
>>>    drivers/net/ethernet/rocker/rocker.c |    3 ++-
>>>    1 file changed, 2 insertions(+), 1 deletion(-)
>>>
>>> diff --git a/drivers/net/ethernet/rocker/rocker.c
>>> b/drivers/net/ethernet/rocker/rocker.c
>>> index fded127..3fe19b0 100644
>>> --- a/drivers/net/ethernet/rocker/rocker.c
>>> +++ b/drivers/net/ethernet/rocker/rocker.c
>>> @@ -4003,7 +4003,8 @@ static int rocker_probe_port(struct rocker *rocker,
>>> unsigned int port_number)
>>>                         NAPI_POLL_WEIGHT);
>>>          rocker_carrier_init(rocker_port);
>>>    -     dev->features |= NETIF_F_HW_VLAN_CTAG_FILTER;
>>> +       dev->features |= NETIF_F_HW_VLAN_CTAG_FILTER |
>>> +                                        NETIF_F_HW_SWITCH_OFFLOAD;
>>
>> Do you have a plan on enabling/disabling  this flag dynamically by ethtool?
>
> Might get it for free if we recycle NETIF_F_HW_L2FW_DOFFLOAD;
> NETIF_F_HW_L2FW_DOFFLOAD seems to be supported by ethtool already.

See my other note but ethtool support for feature flags makes
this pretty close to trivial to implement these days.

Take a look @ netdev_features_strings.

>
>>
>> Thanks & B.R
>> Jianhua
>>
>>>          err = register_netdev(dev);
>>>          if (err) {
>>
>>


-- 
John Fastabend         Intel Corporation
--
To unsubscribe from this list: send the line "unsubscribe netdev" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html