iwlwifi: pcie: allocate and free rx cr's and tr's tails

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The hw now refers to two new blocks:
* rx tr tail - The Tail index on the free buffers queue TR,
which is update by the device after reading the free buffer
from the tr.
* rx cr tail - Updated by the driver when completing
processing a new completion descriptor in the cr.

Add these two new struct to the rxq, allocate and free them
when needed.

In addition, the register for rx write pointer had been changed
to HBUS_TARG_WRPTR. The way to differentiate tx from rx is the
queue number. TX range is 0-511, and RX's is 512-527.

Signed-off-by: Golan Ben Ami <golan.ben.ami@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>

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This commit is contained in:

Golan Ben Ami 2018-02-11 10:48:32 +02:00 • committed by Luca Coelho

parent 5f01df3f58

commit 1b493e30a1

2 changed files with 131 additions and 83 deletions

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13

drivers/net/wireless/intel/iwlwifi/pcie/internal.h

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205

drivers/net/wireless/intel/iwlwifi/pcie/rx.c

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