Messages in this thread |  | | | From | Changli Gao <> | | Date | Thu, 16 Dec 2010 09:28:15 +0800 | | Subject | Re: [PATCH 1/3] Kernel interfaces for multiqueue aware socket |
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On Thu, Dec 16, 2010 at 9:14 AM, Fenghua Yu <fenghua.yu@intel.com> wrote: > > SKF_AD_QUEUE doesn't know number of rx queues. Thus user application can't > specify right SKF_AD_QUEUE.
It is wrong. AFAIK, you can get the queue number through /sys/class/net/eth*/queues/ or /proc/interrupts
> > SKF_AD_QUEUE only works for rx. There is no queue bound interfaces for tx.
Do you really need queue number? The packets must be already spreaded among CPUs, I think you means the current CPU number. Please see SKF_AD_CPU added by Eric.
> > I can change the patch set to use SKF_AD_QUEUE by removing the set rx queue > interface and still keep interfaces of > #define SIOGNUMRXQUEUE 0x8939 /* Get number of rx queues. */ > #define SIOGNUMTXQUEUE 0x893A /* Get number of tx queues. */ > #define SIOSTXQUEUEMAPPING 0x893C /* Set tx queue mapping. */ > #define SIOGRXQUEUEMAPPING 0x893D /* Get rx queue mapping. */ > #define SIOGTXQUEUEMAPPING 0x893E /* Get tx queue mapping. */ > >> >> Also your AF_PACKET patch only address mmaped sockets. >> > The new patch set will use SKF_AD_QUEUE for rx. So it won't be limited to mmaped > sockets. >
If you turn to SKF_AD_QUEUE, I think no patch for kernel is needed.
-- Regards, Changli Gao(xiaosuo@gmail.com) -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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