netdev - RE: [PATCH net-next] net: increase LL_MAX_HEADER if HYPERV

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]

Message-ID: <BN1PR0301MB07708CE383BA67E83C161370CA2B0@BN1PR0301MB0770.namprd03.prod.outlook.com>
Date:	Tue, 3 Nov 2015 18:49:05 +0000
From:	Haiyang Zhang <haiyangz@...rosoft.com>
To:	David Miller <davem@...emloft.net>
CC:	"eric.dumazet@...il.com" <eric.dumazet@...il.com>,
	KY Srinivasan <kys@...rosoft.com>,
	"edumazet@...gle.com" <edumazet@...gle.com>,
	"netdev@...r.kernel.org" <netdev@...r.kernel.org>
Subject: RE: [PATCH net-next] net: increase LL_MAX_HEADER if HYPERV_NET is
 enabled



> -----Original Message-----
> From: David Miller [mailto:davem@...emloft.net]
> Sent: Tuesday, November 3, 2015 1:20 PM
> To: Haiyang Zhang <haiyangz@...rosoft.com>
> Cc: eric.dumazet@...il.com; KY Srinivasan <kys@...rosoft.com>;
> edumazet@...gle.com; netdev@...r.kernel.org
> Subject: Re: [PATCH net-next] net: increase LL_MAX_HEADER if HYPERV_NET
> is enabled
> 
> From: Haiyang Zhang <haiyangz@...rosoft.com>
> Date: Tue, 3 Nov 2015 17:34:47 +0000
> 
> > But we still keep this busy return in our code, just for "weird corner cases".
> 
> The queue_stopped condition must be precise.

The only case we return NETDEV_TX_BUSY is when the outgoing ring buffer is full, 
which almost never happens because we stop the xmit queue if ring is <10% available.

Thanks,
- Haiyang
--
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