Emmanuel Grumbach 943309d4aa iwlwifi: pcie: fix DMA memory mapping / unmapping ... 22000 devices (previously referenced as A000) can support short transmit queues. This means that we have less DMA descriptors (TFD) for those shorter queues. Previous devices must still have 256 TFDs for each queue even if those 256 TFDs point to fewer buffers. When I introduced support for the short queues for 22000 I broke older devices by assuming that they can also have less TFDs in their queues. This led to several problems: 1) the payload of the commands weren't unmapped properly which caused the SWIOTLB to complain at some point. 2) the hardware could get confused and we get hardware crashes. The corresponding bugzilla entries are: https://bugzilla.kernel.org/show_bug.cgi?id=198201 https://bugzilla.kernel.org/show_bug.cgi?id=198265 Cc: stable@vger.kernel.org # 4.14+ Fixes: 4ecab56160 ("iwlwifi: pcie: support short Tx queues for A000 device family") Reviewed-by: Sharon, Sara <sara.sharon@intel.com> Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com> Signed-off-by: Kalle Valo <kvalo@codeaurora.org>		2018-01-05 13:54:22 +02:00
..
ipw2x00	License cleanup: add SPDX GPL-2.0 license identifier to files with no license	2017-11-02 11:10:55 +01:00
iwlegacy	iwlegacy: remove redundant pointer sta_priv	2017-11-08 14:50:19 +02:00
iwlwifi	iwlwifi: pcie: fix DMA memory mapping / unmapping	2018-01-05 13:54:22 +02:00
Kconfig	…
Makefile	…