Commit Graph

55 Commits

Author SHA1 Message Date
Pyun YongHyeon
92483efaab Fix a long standing VLAN tagged frame handling bug.
When VLAN tagged frame is received the hardware sets 'LONG' bit of
Rx status word. It is always set when the size of received frame
exceeded 1518 bytes, including CRC. This VLAN tagged frame clears
'OK' bit of Rx status word such that driver should not rely on 'OK'
bit of Rx status word to pass the VLAN tagged frame to upper stack.

To fix the bug, don't use SIS_CMDSTS_PKT_OK for Rx error check and
introduce SIS_RXSTAT_ERROR macro that checks Rx errors. If we are
configured to accept VLAN tagged frames and the received frame size
is less than or equal to maximum allowed length of VLAN tagged
frame, clear 'LONG' bit of Rx status word before checking Rx
errors.

Reported by:	Vladimir Ermako	< samflanker <> gmail DOT com >
Tested by:	Vladimir Ermako	< samflanker <> gmail DOT com >
2008-12-09 04:30:47 +00:00
Warner Losh
3106346290 There actually were bugs in the original handling that I missed last
night.

Free the children after each pci bus that is searched.  Otherwise we
leak them.  With free in the new place, we also have to free children
before going to done when we find the device we're looking for.

Also, if we can't get the children of a device, just ignore that bus.
2008-08-23 15:34:31 +00:00
Warner Losh
83bda63e3e Actually revert last... Upon closer inspection the code works in the
face of errors already...  A bit unorthodox, but none-the-less valid.
2008-08-23 07:43:03 +00:00
Warner Losh
b52943f026 Handle errors in device_get_children gracefully. 2008-08-23 07:41:21 +00:00
Warner Losh
d2155f2f19 Move sis to sys/dev/sis for consistency. 2008-08-10 10:00:14 +00:00