• Helmut Schaa's avatar
    rt2x00: Make use of sta_add/remove callbacks in rt2800 · a2b1328a
    Helmut Schaa authored
    This allows us to assign a WCID to each STA even for STAs without
    crypto key.
    
    To achieve this search for an unused WCID in the HW WCID table and
    assign it to the according STA. When configuring a pairwise key for this
    STA we don't need to write the MAC address and BSSIDX anymore but just
    update the crypto related fields in the WCID_ATTR table.
    
    This has two advantages:
    
    1) Setting a new key for an already available STA (PTK rekeying) is
    slightly less expensive and should improve performance in situations
    where a lot of rekeying happens (e.g. a huge number of stations and/or
    a small rekeying interval)
    
    2) The TXWI now gets a WCID assigned for unencrypted frames which will
    be reflected in the corresponding tx status report. This should make tx
    status reports in unencrypted AP mode more reliable as we can
    distinguish between multiple key-less STAs.
    Signed-off-by: default avatarHelmut Schaa <helmut.schaa@googlemail.com>
    Signed-off-by: default avatarIvo van Doorn <IvDoorn@gmail.com>
    Signed-off-by: default avatarJohn W. Linville <linville@tuxdriver.com>
    a2b1328a
rt2800pci.c 36.3 KB