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| /freebsd-9.3-release/sys/dev/gem/ | ||
| H A D | if_gem.c | diff 179925 Sun Jun 22 12:03:54 MDT 2008 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() and gem_mii_writereg(). 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 underruns. 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 |
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