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| author | yongari <yongari@FreeBSD.org> | 2011-11-22 20:57:06 +0000 |
|---|---|---|
| committer | yongari <yongari@FreeBSD.org> | 2011-11-22 20:57:06 +0000 |
| commit | 2a52428fd64d703130594f1ed066a391470a097b (patch) | |
| tree | 687f939f8fd8946c5fad31fbbc077bc2f61838e6 /sys/dev/vge | |
| parent | 96623b87d93454791b95523ce36464a89de1e3b5 (diff) | |
| download | FreeBSD-src-2a52428fd64d703130594f1ed066a391470a097b.zip FreeBSD-src-2a52428fd64d703130594f1ed066a391470a097b.tar.gz | |
Announce flow control capability to underlying PHY driver.
Pause timer value is initialized to 0xFFFF. Controller allows just
4 different TX pause thresholds. The lowest possible threshold
value looks too aggressive so use next available threshold value.
Diffstat (limited to 'sys/dev/vge')
| -rw-r--r-- | sys/dev/vge/if_vge.c | 15 |
1 files changed, 11 insertions, 4 deletions
diff --git a/sys/dev/vge/if_vge.c b/sys/dev/vge/if_vge.c index 720c320..1c1a99b 100644 --- a/sys/dev/vge/if_vge.c +++ b/sys/dev/vge/if_vge.c @@ -1103,7 +1103,7 @@ vge_attach(device_t dev) /* Do MII setup */ error = mii_attach(dev, &sc->vge_miibus, ifp, vge_ifmedia_upd, vge_ifmedia_sts, BMSR_DEFCAPMASK, sc->vge_phyaddr, MII_OFFSET_ANY, - 0); + MIIF_DOPAUSE); if (error != 0) { device_printf(dev, "attaching PHYs failed\n"); goto fail; @@ -2112,9 +2112,16 @@ vge_init_locked(struct vge_softc *sc) vge_rxfilter(sc); vge_setvlan(sc); - /* Enable flow control */ - - CSR_WRITE_1(sc, VGE_CRS2, 0x8B); + /* Initialize pause timer. */ + CSR_WRITE_2(sc, VGE_TX_PAUSE_TIMER, 0xFFFF); + /* + * Initialize flow control parameters. + * TX XON high threshold : 48 + * TX pause low threshold : 24 + * Disable hald-duplex flow control + */ + CSR_WRITE_1(sc, VGE_CRC2, 0xFF); + CSR_WRITE_1(sc, VGE_CRS2, VGE_CR2_XON_ENABLE | 0x0B); /* Enable jumbo frame reception (if desired) */ |
