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Message-ID: <20130520162529.GC18520@weiyang.vnet.ibm.com> Date: Tue, 21 May 2013 00:25:29 +0800 From: Wei Yang <weiyang@...ux.vnet.ibm.com> To: jeffrey.t.kirsher@...el.com Cc: e1000-devel@...ts.sourceforge.net, netdev@...r.kernel.org Subject: Re: [PATCH 3/4] e1000e: Calculate the desc_len based on adapter type On Mon, May 20, 2013 at 02:37:48AM -0700, Jeff Kirsher wrote: >On 05/20/2013 01:15 AM, Wei Yang wrote: >> desc_len represents the size of descriptor in rx_ring. There are two kinds of >> rx descriptors, e1000_rx_desc_packet_split(32 byte) and >> e1000_rx_desc_extended(16 byte). Different adapter will use different rx >> descriptors. >> >> When allocating the dma space for this descriptor in current implementation, >> the code ignore the descriptor type and take it as e1000_rx_desc_packet_split >> in any case. This behavior will not effect the function, but will require >> double size of dma space. >> >> This patch will calculate the desc_len based on the adapter type. >> >> Tested on T420, which use e1000_rx_desc_extended and works fine. >> >> Signed-off-by: Wei Yang <weiyang@...ux.vnet.ibm.com> >> --- >> drivers/net/ethernet/intel/e1000e/netdev.c | 7 ++++++- >> 1 files changed, 6 insertions(+), 1 deletions(-) >Thanks, I have added the patch to my queue for e1000e. > Thanks~ -- Richard Yang Help you, Help me -- 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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