iwlwifi: mvm: add WEP RX hardware offload support

Browse source

In the original driver, we decided to not implement WEP RX hardware
offload because of a quirk with the firmware API - it allows setting
global WEP keys that then get used for all virtual interfaces, which
is clearly wrong if more than one exists, and it allows setting per-
station keys but then separates multicast and unicast keys.

In order to implement WEP RX hardware offload, work around these
limitations by uploading each WEP key twice, once as multicast and
once as unicast, but point them both to the same key slot (offset)
and use the same key material so the slot overwrite on the second
upload doesn't actually change anything. Upon removal, also remove
the key twice so the station no longer references it.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>

...

This commit is contained in:

Johannes Berg 2014-11-12 23:54:48 +01:00 • committed by Emmanuel Grumbach

parent 2f6319d1cf

commit ba3943b094

2 changed files with 61 additions and 17 deletions

Show all changes Ignore whitespace when comparing lines Ignore changes in amount of whitespace Ignore changes in whitespace at EOL

Download patch file Download diff file Expand all files Collapse all files

14

drivers/net/wireless/iwlwifi/mvm/mac80211.c

View file

64

drivers/net/wireless/iwlwifi/mvm/sta.c

View file