diff options
Diffstat (limited to 'sys/dev/pci/if_bnx.c')
| -rw-r--r-- | sys/dev/pci/if_bnx.c | 70 |
1 files changed, 67 insertions, 3 deletions
diff --git a/sys/dev/pci/if_bnx.c b/sys/dev/pci/if_bnx.c index ccf374bc6b6..2b64fb1eaa6 100644 --- a/sys/dev/pci/if_bnx.c +++ b/sys/dev/pci/if_bnx.c @@ -1,4 +1,4 @@ -/* $OpenBSD: if_bnx.c,v 1.96 2012/05/14 14:17:30 mikeb Exp $ */ +/* $OpenBSD: if_bnx.c,v 1.97 2012/07/05 13:50:15 phessler Exp $ */ /*- * Copyright (c) 2006 Broadcom Corporation @@ -914,6 +914,9 @@ bnx_attachhook(void *xsc) /* Look for our PHY. */ ifmedia_init(&sc->bnx_mii.mii_media, 0, bnx_ifmedia_upd, bnx_ifmedia_sts); + if (BNX_CHIP_NUM(sc) == BNX_CHIP_NUM_5706 || + (!(sc->bnx_phy_flags & BNX_PHY_SERDES_FLAG))) + mii_flags |= MIIF_DOPAUSE; if (sc->bnx_phy_flags & BNX_PHY_SERDES_FLAG) mii_flags |= MIIF_HAVEFIBER; mii_attach(&sc->bnx_dev, &sc->bnx_mii, 0xffffffff, @@ -1263,6 +1266,7 @@ bnx_miibus_statchg(struct device *dev) { struct bnx_softc *sc = (struct bnx_softc *)dev; struct mii_data *mii = &sc->bnx_mii; + u_int32_t rx_mode = sc->rx_mode; int val; val = REG_RD(sc, BNX_EMAC_MODE); @@ -1270,6 +1274,15 @@ bnx_miibus_statchg(struct device *dev) BNX_EMAC_MODE_MAC_LOOP | BNX_EMAC_MODE_FORCE_LINK | BNX_EMAC_MODE_25G); + /* + * Get flow control negotiation result. + */ + if (IFM_SUBTYPE(mii->mii_media.ifm_cur->ifm_media) == IFM_AUTO && + (mii->mii_media_active & IFM_ETH_FMASK) != sc->bnx_flowflags) { + sc->bnx_flowflags = mii->mii_media_active & IFM_ETH_FMASK; + mii->mii_media_active &= ~IFM_ETH_FMASK; + } + /* Set MII or GMII interface based on the speed * negotiated by the PHY. */ @@ -1309,6 +1322,34 @@ bnx_miibus_statchg(struct device *dev) DBPRINT(sc, BNX_INFO, "Setting Full-Duplex interface.\n"); REG_WR(sc, BNX_EMAC_MODE, val); + + /* + * 802.3x flow control + */ + if (sc->bnx_flowflags & IFM_ETH_RXPAUSE) { + DBPRINT(sc, BNX_INFO, "Enabling RX mode flow control.\n"); + rx_mode |= BNX_EMAC_RX_MODE_FLOW_EN; + } else { + DBPRINT(sc, BNX_INFO, "Disabling RX mode flow control.\n"); + rx_mode &= ~BNX_EMAC_RX_MODE_FLOW_EN; + } + + if (sc->bnx_flowflags & IFM_ETH_TXPAUSE) { + DBPRINT(sc, BNX_INFO, "Enabling TX mode flow control.\n"); + BNX_SETBIT(sc, BNX_EMAC_TX_MODE, BNX_EMAC_TX_MODE_FLOW_EN); + } else { + DBPRINT(sc, BNX_INFO, "Disabling TX mode flow control.\n"); + BNX_CLRBIT(sc, BNX_EMAC_TX_MODE, BNX_EMAC_TX_MODE_FLOW_EN); + } + + /* Only make changes if the recive mode has actually changed. */ + if (rx_mode != sc->rx_mode) { + DBPRINT(sc, BNX_VERBOSE, "Enabling new receive mode: 0x%08X\n", + rx_mode); + + sc->rx_mode = rx_mode; + REG_WR(sc, BNX_EMAC_RX_MODE, rx_mode); + } } /****************************************************************************/ @@ -3943,6 +3984,13 @@ bnx_init_rx_context(struct bnx_softc *sc) val = BNX_L2CTX_CTX_TYPE_CTX_BD_CHN_TYPE_VALUE | BNX_L2CTX_CTX_TYPE_SIZE_L2 | (0x02 << 8); + /* + * Set the level for generating pause frames + * when the number of available rx_bd's gets + * too low (the low watermark) and the level + * when pause frames can be stopped (the high + * watermark). + */ if (BNX_CHIP_NUM(sc) == BNX_CHIP_NUM_5709) { u_int32_t lo_water, hi_water; @@ -3956,7 +4004,8 @@ bnx_init_rx_context(struct bnx_softc *sc) hi_water = 0xf; else if (hi_water == 0) lo_water = 0; - val |= lo_water | + + val |= (lo_water << BNX_L2CTX_RX_LO_WATER_MARK_SHIFT) | (hi_water << BNX_L2CTX_RX_HI_WATER_MARK_SHIFT); } @@ -4191,8 +4240,9 @@ bnx_ifmedia_sts(struct ifnet *ifp, struct ifmediareq *ifmr) mii = &sc->bnx_mii; mii_pollstat(mii); - ifmr->ifm_active = mii->mii_media_active; ifmr->ifm_status = mii->mii_media_status; + ifmr->ifm_active = (mii->mii_media_active & ~IFM_ETH_FMASK) | + sc->bnx_flowflags; splx(s); } @@ -5080,6 +5130,20 @@ bnx_ioctl(struct ifnet *ifp, u_long command, caddr_t data) break; case SIOCSIFMEDIA: + /* Flow control requires full-duplex mode. */ + if (IFM_SUBTYPE(ifr->ifr_media) == IFM_AUTO || + (ifr->ifr_media & IFM_FDX) == 0) + ifr->ifr_media &= ~IFM_ETH_FMASK; + + if (IFM_SUBTYPE(ifr->ifr_media) != IFM_AUTO) { + if ((ifr->ifr_media & IFM_ETH_FMASK) == IFM_FLOW) { + /* We can do both TXPAUSE and RXPAUSE. */ + ifr->ifr_media |= + IFM_ETH_TXPAUSE | IFM_ETH_RXPAUSE; + } + sc->bnx_flowflags = ifr->ifr_media & IFM_ETH_FMASK; + } + /* FALLTHROUGH */ case SIOCGIFMEDIA: DBPRINT(sc, BNX_VERBOSE, "bnx_phy_flags = 0x%08X\n", sc->bnx_phy_flags); |