From: Tom Lendacky <thomas.lenda...@amd.com> Date: Wed, 15 Mar 2017 17:40:51 -0500
> On 3/15/2017 5:37 PM, David Miller wrote: >> From: Tom Lendacky <thomas.lenda...@amd.com> >> Date: Wed, 15 Mar 2017 15:11:23 -0500 >> >>> Newer hardware does not provide a cumulative payload length when >>> multiple >>> descriptors are needed to handle the data. Once the MTU increases >>> beyond >>> the size that can be handled by a single descriptor, the SKB does not >>> get >>> built properly by the driver. >>> >>> The driver will now calculate the size of the data buffers used by the >>> hardware. The first buffer of the first descriptor is for packet >>> headers >>> or packet headers and data when the headers can't be split. Subsequent >>> descriptors in a multi-descriptor chain will not use the first >>> buffer. The >>> second buffer is used by all the descriptors in the chain for payload >>> data. >>> Based on whether the driver is processing the first, intermediate, or >>> last >>> descriptor it can calculate the buffer usage and build the SKB >>> properly. >>> >>> Tested and verified on both old and new hardware. >>> >>> Signed-off-by: Tom Lendacky <thomas.lenda...@amd.com> >> >> Applied, thanks Tom. > > Thanks David. This is another patch for 4.10 stable. Can you please > queue it up? Can you properly state this in your patch postings, instead of always mentioning it later? Thank you.
