diff options
| author | Matt Carlson <mcarlson@broadcom.com> | 2011-07-20 10:20:50 +0000 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@suse.de> | 2011-10-03 11:40:42 -0700 |
| commit | b7d4d461ad51ad98992a1b4d0b46f86ccabd1ee0 (patch) | |
| tree | 6905f65d03a5e00e094447ff539802b80f8836d1 /drivers | |
| parent | 52734d26ffca727da0e687963333ae88056ad84b (diff) | |
tg3: Fix io failures after chip reset
commit 9e975cc291d80d5e4562d6bed15ec171e896d69b upstream.
Commit f2096f94b514d88593355995d5dd276961e88af1, entitled
"tg3: Add 5720 H2BMC support", needed to add code to preserve some bits
set by firmware. Unfortunately the new code causes throughput to stop
after a chip reset because it enables state machines before they are
ready. This patch undoes the problematic code. The bits will be
restored later in the init sequence.
Signed-off-by: Matt Carlson <mcarlson@broadcom.com>
Reviewed-by: Michael Chan <mchan@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/net/tg3.c | 18 |
1 files changed, 6 insertions, 12 deletions
diff --git a/drivers/net/tg3.c b/drivers/net/tg3.c index a1f9f9eef37d..ef0dab451880 100644 --- a/drivers/net/tg3.c +++ b/drivers/net/tg3.c @@ -7267,16 +7267,11 @@ static int tg3_chip_reset(struct tg3 *tp) tw32(TG3PCI_CLOCK_CTRL, tp->pci_clock_ctrl); } - if (tg3_flag(tp, ENABLE_APE)) - tp->mac_mode = MAC_MODE_APE_TX_EN | - MAC_MODE_APE_RX_EN | - MAC_MODE_TDE_ENABLE; - if (tp->phy_flags & TG3_PHYFLG_PHY_SERDES) { - tp->mac_mode |= MAC_MODE_PORT_MODE_TBI; + tp->mac_mode = MAC_MODE_PORT_MODE_TBI; val = tp->mac_mode; } else if (tp->phy_flags & TG3_PHYFLG_MII_SERDES) { - tp->mac_mode |= MAC_MODE_PORT_MODE_GMII; + tp->mac_mode = MAC_MODE_PORT_MODE_GMII; val = tp->mac_mode; } else val = 0; @@ -8408,12 +8403,11 @@ static int tg3_reset_hw(struct tg3 *tp, int reset_phy) udelay(10); } - if (tg3_flag(tp, ENABLE_APE)) - tp->mac_mode = MAC_MODE_APE_TX_EN | MAC_MODE_APE_RX_EN; - else - tp->mac_mode = 0; tp->mac_mode |= MAC_MODE_TXSTAT_ENABLE | MAC_MODE_RXSTAT_ENABLE | - MAC_MODE_TDE_ENABLE | MAC_MODE_RDE_ENABLE | MAC_MODE_FHDE_ENABLE; + MAC_MODE_TDE_ENABLE | MAC_MODE_RDE_ENABLE | + MAC_MODE_FHDE_ENABLE; + if (tg3_flag(tp, ENABLE_APE)) + tp->mac_mode |= MAC_MODE_APE_TX_EN | MAC_MODE_APE_RX_EN; if (!tg3_flag(tp, 5705_PLUS) && !(tp->phy_flags & TG3_PHYFLG_PHY_SERDES) && GET_ASIC_REV(tp->pci_chip_rev_id) != ASIC_REV_5700) |