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Date: Fri, 13 Feb 2009 01:06:15 +0100 From: Lennert Buytenhek <buytenh@...tstofly.org> To: jeff@...zik.org, netdev@...r.kernel.org Cc: nico@....org Subject: [PATCH 0/6] mv643xx_eth updates Two things here: - Exporting some functionality that mostly already existed in the driver (interrupt coalescing, etc) to userland via ethtool. - Add Kconfig-configurable LRO support. I have two more patches: 1. Set the default rx coal value to something other than zero, since 100us or 200us or 500us all provide very nice performance improvements (especially combined with LRO -- a 1.2GHz ARM with 256K of cache can receive line rate gigabit and copy it all to userland with ~70% CPU usage when LRO and rx coalescing are enabled, whereas it does ~80MB/s with 100% CPU usage if those are both off). 2. Receive into pages (to speed up TCP splice receive). But (1) still needs some benchmarking to see what the best default value would be for a wider range of hardware, and (2) I'm not yet happy about. -- 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
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