On Tue, 2016-03-29 at 22:19 -0700, Alexander Duyck wrote: > Minor correction here. This is 72 hex, which is 114 in decimal. The > interesting bit I believe is the fact that we have both header and > payload data in the same descriptor. > > You should probably check with your hardware team on this but I have > a > working theory on the issue. I'm thinking that because both header > and payload are coming out of the same descriptor this must count as > 2 > descriptors and not 1 when we compute the usage for the first > descriptor. As such I do probably need to start testing at frag 0 > because the first payload can actually come out of the header region > if the first descriptor includes both payload and data. > > I'll try to submit a patch for it tonight. If you can test it > tomorrow I would appreciate it. Otherwise I will try setting up an > environment to try and reproduce the issue tomorrow.
If you get it submitted tonight, I can have it ready in my tree for testing for Jesse and the team when they get into the office tomorrow.
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