(src/sys/dev/ic/re.c rev. 1.15). The disabled VLAN stripping is mine.
(The OpenBSD driver forgot to do this.)
The reason is that untagged packets get sometimes tagged incorrectly.
PR 32643.
Approved by martin@.
so BUS_DMASYNC_POSTREAD should follow a device->memory transfer (like for
the rx packet data.
Also, it would be good to do a BUS_DMASYNC_PREWRITE to ensure that packet
data is flushed to memory before the chip tries to transmit data.
Tested on a PowerPC system.
number of tx descriptors, number of rx descriptors, and number of mbufs.
- bump number of tx descriptors for rtl8169. 64 doesn't seem to be sufficient
when doing TSO.
- TSO support.
- fix some error handling.
- remove mysterious RTK_NTXSEGS and use more appropriate values
for bus_dmamap_create.
- if we need more than all of our tx descriptors in order to transmit a packet,
just drop it rather than retrying infinitely.
bus-independent backend, with PCI and CardBus attachment code.
The committed code has two serious bugs:
1. The driver makes no attempt to recover resources when a (Cardbus)
instance is removed; bus resources are leaked.
2. In testing with a NetGear GA-511, the Cardbus card never responded
to a reset/wakeup if the card is powered down after attachment.
So for now, leave cardbus instances powered up at attachment
(insertion, or at boot if a card is already present).
That aside, it acutally works on my GA-511. Committed as-is despite
the bugs, after repeated requests to make the code available for
further testing. Also requires sys/dev/mii/miidevs rev 1.54 -> 1.55,
and consequent regen of miidevs{,_data}.h.
pavel