d/freebsd-skq
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

Workaround GMAC hardware hang of Yukon II on the receipt of pause

Browse Source 
frames. This bug seems to happen on certain hardware model/revision
(e.g. 88E8053) but it's not identified which hardwares are affected.
Revision 1.4 of if_mskreg.h was not enough to workaround the bug.
To workaround it, inrease GMAC FIFO threshold by one FIFO word to
flush received pause frames.

Reported by:	das, Kirill Nuzhdin < kirill.nuzhdin AT rad dot chem dot msu dot ru >
Tested by:	das, Kirill Nuzhdin
This commit is contained in:
Pyun YongHyeon 2008-02-29 03:38:12 +00:00
parent d412b2debb
commit d5d601648c
2 changed files with 6 additions and 2 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

7
sys/dev/msk/if_msk.c
View File

@ -3658,9 +3658,12 @@ msk_init_locked(struct msk_if_softc *sc_if)
CSR_WRITE_4(sc, MR_ADDR(sc_if->msk_port, RX_GMF_FL_MSK),
GMR_FS_ANY_ERR);
/* Set Rx FIFO flush threshold to 64 bytes. */
/*
* Set Rx FIFO flush threshold to 64 bytes + 1 FIFO word
* due to hardware hang on receipt of pause frames.
*/
CSR_WRITE_4(sc, MR_ADDR(sc_if->msk_port, RX_GMF_FL_THR),
RX_GMF_FL_THR_DEF);
RX_GMF_FL_THR_DEF + 1);
/* Configure Tx MAC FIFO. */
CSR_WRITE_4(sc, MR_ADDR(sc_if->msk_port, TX_GMF_CTRL_T), GMF_RST_SET);

1
sys/dev/msk/if_mskreg.h
View File

@ -1818,6 +1818,7 @@
GMR_FS_LONG_ERR | \
GMR_FS_MII_ERR | \
GMR_FS_BAD_FC | \
GMR_FS_GOOD_FC | \
GMR_FS_UN_SIZE | \
GMR_FS_JABBER)