- Copy stable/10 (r259064) to releng/10.0 as part of the
10.0-RELEASE cycle.
- Update __FreeBSD_version [1]
- Set branch name to -RC1

[1] 10.0-CURRENT __FreeBSD_version value ended at '55', so
start releng/10.0 at '100' so the branch is started with
a value ending in zero.

Approved by: re (implicit)
Sponsored by: The FreeBSD Foundation

Copy head (r256279) to stable/10 as part of the 10.0-RELEASE cycle.

Approved by: re (implicit)
Sponsored by: The FreeBSD Foundation

Make tx(4) MPSAFE
- Add a mutex to the softc to protect the softc and device hardware.
- Use a private timer to implement a watchdog for tx timeouts and drive
the timer for auto negotiation.
- Use bus_foo() rather than bus_space_foo() and remove the bus space
tag & handle from the softc.
- Call bus_setup_intr() after ether_ifattach().

Tested by: Florian Smeets flo of kasimir.com

Stop embedding struct ifnet at the top of driver softcs. Instead the
struct ifnet or the layer 2 common structure it was embedded in have
been replaced with a struct ifnet pointer to be filled by a call to the
new function, if_alloc(). The layer 2 common structure is also allocated
via if_alloc() based on the interface type. It is hung off the new
struct ifnet member, if_l2com.

This change removes the size of these structures from the kernel ABI and
will allow us to better manage them as interfaces come and go.

Other changes of note:
- Struct arpcom is no longer referenced in normal interface code.
Instead the Ethernet address is accessed via the IFP2ENADDR() macro.
To enforce this ac_enaddr has been renamed to _ac_enaddr.
- The second argument to ether_ifattach is now always the mac address
from driver private storage rather than sometimes being ac_enaddr.

Reviewed by: sobomax, sam

Convert the tx(4) driver to use the busdma API.

Special thanks to brueffer for sending me such a card so that
I could do this work.

Nuke EPIC_MGETCLUSTER entirely. Since 1.60 we don't use it anymore and
instead use our optimized m_getcl().

Submitted by: Hiten Pandya <hiten@unixdaemons.com>
MFC After: 1 week

Back out M_* changes, per decision of the TRB.

Approved by: trb

Remove M_TRYWAIT/M_WAITOK/M_WAIT. Callers should use 0.
Merge M_NOWAIT/M_DONTWAIT into a single flag M_NOWAIT.

o m_adj rx buffer so IP header is 32-bit aligned
o replace EPIC_MGETCLUSER with m_getcl

MFC after: 1 week

Remove the OpenBSD comatibility stuff. Many changes to be more style(9)
compilant. Split two pieces if code into separate functions to do not
exceed line length due to indentation.

Stop trying to align malloc()ed memory. Rely on malloc() instead, just like
others.

Move tx(4) driver to sys/dev/tx. BTW split hardware structures and constants
into if_txreg.h.

MFC after: 1 week

Add support for 802.1Q VLAN and oversized ethernet frames.

PR: kern/29235
Submitted by: Peter Jeremy <peter.jeremy@alcatel.com.au>
Reviewed by: Yar Tikhiy <yar@FreeBSD.org>
MFC after: 1 week

Add initializetion of NVCTL register with EEPROM stored value.
This fix hazardous very slow work for one of my cards.

MFC after: 1 week

Add support for SMC9432FTX card, possibly othe fiber optic SMC9432 family
cards will work too.

Added support for SMC9432BTX cards.

Driver is now using miibus, and newbus.

PR: kern/17601

Added code to enable BusMaster operations.
Kurt D. Starsinic <kstar@chapin.edu> had reported
this patch fixing strange behaviour (like timeouts
and RX/TX DMAs stopping errors).

$Id$ -> $FreeBSD$

Move arpcom structure be the first in softc structure. Needed
for ether_ioctl.

PR: pending/11754

Implemented workaround for EPIC's Application Note 7-15 (concerning
chip int. and ext. clock synchronisation). Fixed workaround for
transmit threshold underrun. Added volatile keyword to CSR_READ_* and
CSR_WRITE_* macroses. Added DELAYs to eliminate randomness caused
by processor speed. Fixed all TXCON and RXCON registers to be accessed
only when chip is idle, as manual told. Changed epic_init_phy to
drop link by isolating and going loopback, should should force link
partner to restart autonegotiation.

PR: kern/10535, kern/9742, kern/10575
Submitted by: Peter Jeremy, David Greenman

Ported to OpenBSD. sys/pci/smc83c170.h renamed to sys/pci/if_txvar.h to be
like others.