netdev - Re: [RFC PATCH v1 1/2] net: implement mechanism for HW based QOS

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Date:	Thu, 18 Nov 2010 18:39:23 +0100
From:	Eric Dumazet <eric.dumazet@...il.com>
To:	John Fastabend <john.r.fastabend@...el.com>
Cc:	"netdev@...r.kernel.org" <netdev@...r.kernel.org>,
	"nhorman@...driver.com" <nhorman@...driver.com>,
	"davem@...emloft.net" <davem@...emloft.net>
Subject: Re: [RFC PATCH v1 1/2] net: implement mechanism for HW based QOS

Le jeudi 18 novembre 2010 à 09:27 -0800, John Fastabend a écrit :

> Thanks for the feedback!
> 
> num_tx_queues is an unsigned int in net_device and I can't see any
> place that would limit it to 16bits. So I think we need 32 bits here.
> Otherwise I will make these changes and fix the fallout. This is much
> cleaner.
> 
> 

Hmm...

include/linux/skbuff.h

__u16           queue_mapping:16;


static inline void skb_record_rx_queue(struct sk_buff *skb, u16 rx_queue)

Anyway, we dont want to have more than 32768 queues, not before year
2020 at least

Thanks



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