Question on CE_DESC_FLAGS_META_DATA field.

Ben Greear greearb at
Mon Jan 12 08:53:22 PST 2015

On 01/11/2015 11:42 PM, Michal Kazior wrote:
> On 9 January 2015 at 19:06, Ben Greear <greearb at> wrote:
>> While poking in the CE code, I notice this below.
>> Shouldn't the CE_DESC_FLAGS_META_DATA_LSB be 2, and if not,
>> can someone explain why?
>> [greearb at ben-dt2 ath10k]$ grep CE_DESC_FLAGS_META_DATA *h
>> ce.h:#define CE_DESC_FLAGS_META_DATA_LSB  3
> Nice catch!
> This shouldn't have been harmful though. Meta data part is used to
> store htc endpoint ids which shouldn't overflow the mask even with
> lsb=3 and as far as I know neither CE nor firmware cares what is
> stored there.

Ok, I'll fix this in my tree and post a patch sometime soon.

Upstream 10.1 firmware does ignore the transfer_id, but I am
fixing that in my firmware to aid debugging (and fixing ath10k
driver to use it for debugging as well).


Ben Greear <greearb at>
Candela Technologies Inc

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