Hi,
I apologize if this list is not appropriate for this request.
I am trying to add support for Marvell Yukon FE+ network card under
NetBSD according to http://gnats.netbsd.org/42417. The chip of this card
(Yukon 88E8040) runs with msk driver. Under NetBSD, the driver derives
from the OpenBSD one. But OpenBSD runs 88E8040 while NetBSD not. I have
begun to port code from OpenBSD to NetBSD, but it doesn't work yet. I
have looked into FreeBSD and Linux drivers too. FreeBSD has these pieces
of code:
if (sc->msk_hw_rev == CHIP_REV_YU_FE_P_A0) {
/*
* XXX
* FE+ A0 has status LE writeback bug so msk(4)
* does not rely on status word of received frame
* in msk_rxeof() which in turn disables all
* hardware assistance bits reported by the status
* word as well as validity of the received frame.
* Just pass received frames to upper stack with
* minimal test and let upper stack handle them.
*/
sc->msk_pflags |= MSK_FLAG_NOHWVLAN |
MSK_FLAG_NORXCHK | MSK_FLAG_NORX_CSUM;
}
[...]
/* Another magic for Yukon FE+ - From Linux. */
if (sc->msk_hw_id == CHIP_ID_YUKON_FE_P &&
sc->msk_hw_rev == CHIP_REV_YU_FE_P_A0)
reg = 0x178;
CSR_WRITE_2(sc, MR_ADDR(sc_if->msk_port, RX_GMF_FL_THR), reg);
I don't understand how OpenBSD manages to run this card without these
*hacks*. Surely OpenBSD is very well written ! My current patch adds the
conditional blocks corresponding to my card from OpenBSD if_msk.c to the
NetBSD one (but it's not enough). Anybody knows the magic behavior of
this driver ?
Thank you,
Fred
--
FrC)dC)ric Fauberteau
