Signed-off-by: Alessandro Rubini <rubini@gnudd.com>

Signed-off-by: Alessandro Rubini <rubini@gnudd.com>

Signed-off-by: Alessandro Rubini <rubini@gnudd.com>

Signed-off-by: Alessandro Rubini <rubini@gnudd.com>

Signed-off-by: Alessandro Rubini <rubini@gnudd.com>

Without this fix all 802.1q tagged frames are assigned to class 0

wr_nic now exports wr_nic_pstats_callback as a pointer. When wr_pstats
is loaded it writes its own pointer in there.

wr_nic can thus ask for statistics and updated net_device_stats with
the proper numbers.   The statistics on snmp reflect this, because
snmpd uses the standard device ioctl commands -- but very few of our
counters actually end up all the way to snmp.
Signed-off-by: Alessandro Rubini <rubini@gnudd.com>

Signed-off-by: Alessandro Rubini <rubini@gnudd.com>

Signed-off-by: Alessandro Rubini <rubini@gnudd.com>

Signed-off-by: Federico Vaga <federico.vaga@gmail.com>

Signed-off-by: Federico Vaga <federico.vaga@gmail.com>

kernel/wr-nic: use defines instead of hardcoded TS invalid bits, drop invalid timestamps instead of returning 0

Please tom check and fix this, I have no bit nr for txtsu. Also, please
note that there's not flag for stamp-valid: you must detect 0 in userspace.

The MRU in hw includes stuff that is not included in dev->mtu, so
long packets were failing. Use a big RTU to be safe, and the OS will deal with
wrong packets.

This reverts commit 6ef1ed8a462d237e26eaccda5adcd1150628c0ca.
The new macros for writel make all such calls fail miserably.