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Date: Tue, 28 Apr 2009 01:55:35 -0700 (PDT) From: David Miller <davem@...emloft.net> To: jeffrey.t.kirsher@...el.com Cc: netdev@...r.kernel.org, gospo@...hat.com, alexander.h.duyck@...el.com Subject: Re: [net-next PATCH 1/3] ixgbe: enable HW RSC for 82599 From: Jeff Kirsher <jeffrey.t.kirsher@...el.com> Date: Tue, 28 Apr 2009 01:42:37 -0700 > From: Alexander Duyck <alexander.h.duyck@...el.com> > > This patch enables hardware receive side coalescing for 82599 hardware. > 82599 can merge multiple frames from the same TCP/IP flow into a single > structure that can span one ore more descriptors. The accumulated data is > arranged similar to how jumbo frames are arranged with the exception that > other packets can be interlaced inbetween. To overcome this issue a next > pointer is included in the written back descriptor which indicates the next > descriptor in the writeback sequence. > > This feature sets the NETIF_F_LRO flag and clearing it via the ethtool set > flags operation will also disable hardware RSC. > > Signed-off-by: Alexander Duyck <alexander.h.duyck@...el.com> > Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@...el.com> Applied, but......... Since IXGBE has been converted to GRO, all of this fiddling with LRO is a complete NOP. All of that code can be removed completely. -- 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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