cvs commit: src/sys/dev/gem if_gem.c
marius at FreeBSD.org
Sun Jun 22 13:55:02 UTC 2008
marius 2008-06-22 13:54:51 UTC
FreeBSD src repository
SVN rev 179925 on 2008-06-22 13:54:51Z by marius
o The FreeBSD bus_dmamap_sync(9) supports ored together flags for quite
some time now so collapse calls accordingly.
o Given that gem_load_txmbuf() is allowed to fail resulting in a packet
drop also for quite some time now implement the functionality of
gem_txcksum() by means of m_pullup(9), which de-obfuscates the code
and allows to always retrieve the correct length of the IP header.
o Add missing BUS_DMASYNC_PREREAD when syncing the control DMA maps in
gem_rint() and gem_start_locked().
o Correct some bus_barrier(9) calls to do a read/write barrier as we
do a read after a write. Add some missing ones in gem_mii_readreg()
o According to the Apple GMAC driver, the GEM ASIC specification and
the OpenSolaris eri(7D) the TX FIFO threshold has to be set to 0x4ff
for the Gigabit variants and 0x100 for the ERI in order do avoid TX
o In gem_init_locked():
- be conservative and enable the RX and TX MACs,
- don't clear GEM_LINK otherwise we don't ever mark the link as up
again if gem_init_locked() is called from gem_watchdog(),
- remove superfluous setting of sc_ifflags.
o Don't bother to check whether the interface is running or whether its
queue is empty before calling gem_start_locked() in gem_tint(), the
former will check these anyway.
o Call gem_start_locked() in gem_watchdog() in order to try to get
some more packets going.
o In gem_mii_writereg() after reseting the PCS restore its configuration.
GMAC testing: grehan, marcel
MFC after: 2 weeks
Revision Changes Path
1.50 +90 -90 src/sys/dev/gem/if_gem.c
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