diff options
Diffstat (limited to 'sys/dev/bce')
| -rw-r--r-- | sys/dev/bce/if_bce.c | 24 |
1 files changed, 23 insertions, 1 deletions
diff --git a/sys/dev/bce/if_bce.c b/sys/dev/bce/if_bce.c index b7b2147..f381dad 100644 --- a/sys/dev/bce/if_bce.c +++ b/sys/dev/bce/if_bce.c @@ -2062,6 +2062,11 @@ bce_miibus_statchg(device_t dev) media_status = mii->mii_media_status; } + /* Ignore invalid media status. */ + if ((media_status & (IFM_ACTIVE | IFM_AVALID)) != + (IFM_ACTIVE | IFM_AVALID)) + goto bce_miibus_statchg_exit; + val = REG_RD(sc, BCE_EMAC_MODE); val &= ~(BCE_EMAC_MODE_PORT | BCE_EMAC_MODE_HALF_DUPLEX | BCE_EMAC_MODE_MAC_LOOP | BCE_EMAC_MODE_FORCE_LINK | @@ -2131,6 +2136,7 @@ bce_miibus_statchg(device_t dev) /* ToDo: Update watermarks in bce_init_rx_context(). */ +bce_miibus_statchg_exit: DBEXIT(BCE_VERBOSE_PHY); } @@ -4997,14 +5003,25 @@ bce_stop(struct bce_softc *sc) static int bce_reset(struct bce_softc *sc, u32 reset_code) { - u32 val; + u32 emac_mode_save, val; int i, rc = 0; + static const u32 emac_mode_mask = BCE_EMAC_MODE_PORT | + BCE_EMAC_MODE_HALF_DUPLEX | BCE_EMAC_MODE_25G; DBENTER(BCE_VERBOSE_RESET); DBPRINT(sc, BCE_VERBOSE_RESET, "%s(): reset_code = 0x%08X\n", __FUNCTION__, reset_code); + /* + * If ASF/IPMI is operational, then the EMAC Mode register already + * contains appropriate values for the link settings that have + * been auto-negotiated. Resetting the chip will clobber those + * values. Save the important bits so we can restore them after + * the reset. + */ + emac_mode_save = REG_RD(sc, BCE_EMAC_MODE) & emac_mode_mask; + /* Wait for pending PCI transactions to complete. */ REG_WR(sc, BCE_MISC_ENABLE_CLR_BITS, BCE_MISC_ENABLE_CLR_BITS_TX_DMA_ENABLE | @@ -5094,6 +5111,11 @@ bce_reset(struct bce_softc *sc, u32 reset_code) bce_fw_cap_init(sc); bce_reset_exit: + /* Restore EMAC Mode bits needed to keep ASF/IPMI running. */ + val = REG_RD(sc, BCE_EMAC_MODE); + val = (val & ~emac_mode_mask) | emac_mode_save; + REG_WR(sc, BCE_EMAC_MODE, val); + DBEXIT(BCE_VERBOSE_RESET); return (rc); } |
