iwlwifi: pcie: detect and workaround invalid write ptr behavior

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In 9000 series A0 step the closed_rb_num is not wrapping around
properly. The queue is wrapping around as it should, so we can
W/A it by wrapping the closed_rb_num in the driver.
While at it, extend RX logging and add error handling of other
cases HW values may cause us to access invalid memory locations.
Add also a proper masking of vid value read from HW - this should
not have actual affect, but better to be on the safe side.

Signed-off-by: Sara Sharon <sara.sharon@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>

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Sara Sharon 2016-02-24 14:56:21 +02:00 • committed by Emmanuel Grumbach

parent fcb6b92a68

commit 5eae443eb5

1 changed files with 13 additions and 4 deletions

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

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