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Date: Thu, 19 May 2011 15:12:49 -0700
From: "Matt Carlson" <mcarlson@...adcom.com>
To: davem@...emloft.net
cc: netdev@...r.kernel.org, mcarlson@...adcom.com
Subject: [PATCH net-next 06/13] tg3: Consolidate autoneg advertisement
setup code
Autonegotiation setup has gotten a little more complicated since the tg3
driver was created. This patch consolidates autoneg setup into one
routine and modifies the call sites accordingly.
Signed-off-by: Matt Carlson <mcarlson@...adcom.com>
Reviewed-by: Michael Chan <mchan@...adcom.com>
---
drivers/net/tg3.c | 217 ++++++++++++++++++++++++-----------------------------
1 files changed, 99 insertions(+), 118 deletions(-)
diff --git a/drivers/net/tg3.c b/drivers/net/tg3.c
index 695dab2..7675231 100644
--- a/drivers/net/tg3.c
+++ b/drivers/net/tg3.c
@@ -2929,102 +2929,54 @@ static void tg3_aux_stat_to_speed_duplex(struct tg3 *tp, u32 val, u16 *speed, u8
}
}
-static void tg3_phy_copper_begin(struct tg3 *tp)
+static int tg3_phy_autoneg_cfg(struct tg3 *tp, u32 advertise, u32 flowctrl)
{
- u32 new_adv;
- int i;
-
- if (tp->phy_flags & TG3_PHYFLG_IS_LOW_POWER) {
- /* Entering low power mode. Disable gigabit and
- * 100baseT advertisements.
- */
- tg3_writephy(tp, MII_TG3_CTRL, 0);
+ int err = 0;
+ u32 val, new_adv;
- new_adv = (ADVERTISE_10HALF | ADVERTISE_10FULL |
- ADVERTISE_CSMA | ADVERTISE_PAUSE_CAP);
- if (tg3_flag(tp, WOL_SPEED_100MB))
- new_adv |= (ADVERTISE_100HALF | ADVERTISE_100FULL);
+ new_adv = ADVERTISE_CSMA;
+ if (advertise & ADVERTISED_10baseT_Half)
+ new_adv |= ADVERTISE_10HALF;
+ if (advertise & ADVERTISED_10baseT_Full)
+ new_adv |= ADVERTISE_10FULL;
+ if (advertise & ADVERTISED_100baseT_Half)
+ new_adv |= ADVERTISE_100HALF;
+ if (advertise & ADVERTISED_100baseT_Full)
+ new_adv |= ADVERTISE_100FULL;
- tg3_writephy(tp, MII_ADVERTISE, new_adv);
- } else if (tp->link_config.speed == SPEED_INVALID) {
- if (tp->phy_flags & TG3_PHYFLG_10_100_ONLY)
- tp->link_config.advertising &=
- ~(ADVERTISED_1000baseT_Half |
- ADVERTISED_1000baseT_Full);
+ new_adv |= tg3_advert_flowctrl_1000T(flowctrl);
- new_adv = ADVERTISE_CSMA;
- if (tp->link_config.advertising & ADVERTISED_10baseT_Half)
- new_adv |= ADVERTISE_10HALF;
- if (tp->link_config.advertising & ADVERTISED_10baseT_Full)
- new_adv |= ADVERTISE_10FULL;
- if (tp->link_config.advertising & ADVERTISED_100baseT_Half)
- new_adv |= ADVERTISE_100HALF;
- if (tp->link_config.advertising & ADVERTISED_100baseT_Full)
- new_adv |= ADVERTISE_100FULL;
-
- new_adv |= tg3_advert_flowctrl_1000T(tp->link_config.flowctrl);
-
- tg3_writephy(tp, MII_ADVERTISE, new_adv);
-
- if (tp->link_config.advertising &
- (ADVERTISED_1000baseT_Half | ADVERTISED_1000baseT_Full)) {
- new_adv = 0;
- if (tp->link_config.advertising & ADVERTISED_1000baseT_Half)
- new_adv |= MII_TG3_CTRL_ADV_1000_HALF;
- if (tp->link_config.advertising & ADVERTISED_1000baseT_Full)
- new_adv |= MII_TG3_CTRL_ADV_1000_FULL;
- if (!(tp->phy_flags & TG3_PHYFLG_10_100_ONLY) &&
- (tp->pci_chip_rev_id == CHIPREV_ID_5701_A0 ||
- tp->pci_chip_rev_id == CHIPREV_ID_5701_B0))
- new_adv |= (MII_TG3_CTRL_AS_MASTER |
- MII_TG3_CTRL_ENABLE_AS_MASTER);
- tg3_writephy(tp, MII_TG3_CTRL, new_adv);
- } else {
- tg3_writephy(tp, MII_TG3_CTRL, 0);
- }
- } else {
- new_adv = tg3_advert_flowctrl_1000T(tp->link_config.flowctrl);
- new_adv |= ADVERTISE_CSMA;
+ err = tg3_writephy(tp, MII_ADVERTISE, new_adv);
+ if (err)
+ goto done;
- /* Asking for a specific link mode. */
- if (tp->link_config.speed == SPEED_1000) {
- tg3_writephy(tp, MII_ADVERTISE, new_adv);
+ if (tp->phy_flags & TG3_PHYFLG_10_100_ONLY)
+ goto done;
- if (tp->link_config.duplex == DUPLEX_FULL)
- new_adv = MII_TG3_CTRL_ADV_1000_FULL;
- else
- new_adv = MII_TG3_CTRL_ADV_1000_HALF;
- if (tp->pci_chip_rev_id == CHIPREV_ID_5701_A0 ||
- tp->pci_chip_rev_id == CHIPREV_ID_5701_B0)
- new_adv |= (MII_TG3_CTRL_AS_MASTER |
- MII_TG3_CTRL_ENABLE_AS_MASTER);
- } else {
- if (tp->link_config.speed == SPEED_100) {
- if (tp->link_config.duplex == DUPLEX_FULL)
- new_adv |= ADVERTISE_100FULL;
- else
- new_adv |= ADVERTISE_100HALF;
- } else {
- if (tp->link_config.duplex == DUPLEX_FULL)
- new_adv |= ADVERTISE_10FULL;
- else
- new_adv |= ADVERTISE_10HALF;
- }
- tg3_writephy(tp, MII_ADVERTISE, new_adv);
+ new_adv = 0;
+ if (advertise & ADVERTISED_1000baseT_Half)
+ new_adv |= MII_TG3_CTRL_ADV_1000_HALF;
+ if (advertise & ADVERTISED_1000baseT_Full)
+ new_adv |= MII_TG3_CTRL_ADV_1000_FULL;
- new_adv = 0;
- }
+ if (tp->pci_chip_rev_id == CHIPREV_ID_5701_A0 ||
+ tp->pci_chip_rev_id == CHIPREV_ID_5701_B0)
+ new_adv |= (MII_TG3_CTRL_AS_MASTER |
+ MII_TG3_CTRL_ENABLE_AS_MASTER);
- tg3_writephy(tp, MII_TG3_CTRL, new_adv);
- }
+ err = tg3_writephy(tp, MII_TG3_CTRL, new_adv);
+ if (err)
+ goto done;
- if (tp->phy_flags & TG3_PHYFLG_EEE_CAP) {
- u32 val;
+ if (!(tp->phy_flags & TG3_PHYFLG_EEE_CAP))
+ goto done;
- tw32(TG3_CPMU_EEE_MODE,
- tr32(TG3_CPMU_EEE_MODE) & ~TG3_CPMU_EEEMD_LPI_ENABLE);
+ tw32(TG3_CPMU_EEE_MODE,
+ tr32(TG3_CPMU_EEE_MODE) & ~TG3_CPMU_EEEMD_LPI_ENABLE);
- TG3_PHY_AUXCTL_SMDSP_ENABLE(tp);
+ err = TG3_PHY_AUXCTL_SMDSP_ENABLE(tp);
+ if (!err) {
+ u32 err2;
switch (GET_ASIC_REV(tp->pci_chip_rev_id)) {
case ASIC_REV_5717:
@@ -3041,19 +2993,66 @@ static void tg3_phy_copper_begin(struct tg3 *tp)
}
val = 0;
- if (tp->link_config.autoneg == AUTONEG_ENABLE) {
- /* Advertise 100-BaseTX EEE ability */
- if (tp->link_config.advertising &
- ADVERTISED_100baseT_Full)
- val |= MDIO_AN_EEE_ADV_100TX;
- /* Advertise 1000-BaseT EEE ability */
- if (tp->link_config.advertising &
- ADVERTISED_1000baseT_Full)
- val |= MDIO_AN_EEE_ADV_1000T;
+ /* Advertise 100-BaseTX EEE ability */
+ if (advertise & ADVERTISED_100baseT_Full)
+ val |= MDIO_AN_EEE_ADV_100TX;
+ /* Advertise 1000-BaseT EEE ability */
+ if (advertise & ADVERTISED_1000baseT_Full)
+ val |= MDIO_AN_EEE_ADV_1000T;
+ err = tg3_phy_cl45_write(tp, MDIO_MMD_AN, MDIO_AN_EEE_ADV, val);
+
+ err2 = TG3_PHY_AUXCTL_SMDSP_DISABLE(tp);
+ if (!err)
+ err = err2;
+ }
+
+done:
+ return err;
+}
+
+static void tg3_phy_copper_begin(struct tg3 *tp)
+{
+ u32 new_adv;
+ int i;
+
+ if (tp->phy_flags & TG3_PHYFLG_IS_LOW_POWER) {
+ new_adv = ADVERTISED_10baseT_Half |
+ ADVERTISED_10baseT_Full;
+ if (tg3_flag(tp, WOL_SPEED_100MB))
+ new_adv |= ADVERTISED_100baseT_Half |
+ ADVERTISED_100baseT_Full;
+
+ tg3_phy_autoneg_cfg(tp, new_adv,
+ FLOW_CTRL_TX | FLOW_CTRL_RX);
+ } else if (tp->link_config.speed == SPEED_INVALID) {
+ if (tp->phy_flags & TG3_PHYFLG_10_100_ONLY)
+ tp->link_config.advertising &=
+ ~(ADVERTISED_1000baseT_Half |
+ ADVERTISED_1000baseT_Full);
+
+ tg3_phy_autoneg_cfg(tp, tp->link_config.advertising,
+ tp->link_config.flowctrl);
+ } else {
+ /* Asking for a specific link mode. */
+ if (tp->link_config.speed == SPEED_1000) {
+ if (tp->link_config.duplex == DUPLEX_FULL)
+ new_adv = ADVERTISED_1000baseT_Full;
+ else
+ new_adv = ADVERTISED_1000baseT_Half;
+ } else if (tp->link_config.speed == SPEED_100) {
+ if (tp->link_config.duplex == DUPLEX_FULL)
+ new_adv = ADVERTISED_100baseT_Full;
+ else
+ new_adv = ADVERTISED_100baseT_Half;
+ } else {
+ if (tp->link_config.duplex == DUPLEX_FULL)
+ new_adv = ADVERTISED_10baseT_Full;
+ else
+ new_adv = ADVERTISED_10baseT_Half;
}
- tg3_phy_cl45_write(tp, MDIO_MMD_AN, MDIO_AN_EEE_ADV, val);
- TG3_PHY_AUXCTL_SMDSP_DISABLE(tp);
+ tg3_phy_autoneg_cfg(tp, new_adv,
+ tp->link_config.flowctrl);
}
if (tp->link_config.autoneg == AUTONEG_DISABLE &&
@@ -12953,7 +12952,7 @@ static int __devinit tg3_phy_probe(struct tg3 *tp)
if (!(tp->phy_flags & TG3_PHYFLG_ANY_SERDES) &&
!tg3_flag(tp, ENABLE_APE) &&
!tg3_flag(tp, ENABLE_ASF)) {
- u32 bmsr, adv_reg, tg3_ctrl, mask;
+ u32 bmsr, mask;
tg3_readphy(tp, MII_BMSR, &bmsr);
if (!tg3_readphy(tp, MII_BMSR, &bmsr) &&
@@ -12964,36 +12963,18 @@ static int __devinit tg3_phy_probe(struct tg3 *tp)
if (err)
return err;
- adv_reg = (ADVERTISE_10HALF | ADVERTISE_10FULL |
- ADVERTISE_100HALF | ADVERTISE_100FULL |
- ADVERTISE_CSMA | ADVERTISE_PAUSE_CAP);
- tg3_ctrl = 0;
- if (!(tp->phy_flags & TG3_PHYFLG_10_100_ONLY)) {
- tg3_ctrl = (MII_TG3_CTRL_ADV_1000_HALF |
- MII_TG3_CTRL_ADV_1000_FULL);
- if (tp->pci_chip_rev_id == CHIPREV_ID_5701_A0 ||
- tp->pci_chip_rev_id == CHIPREV_ID_5701_B0)
- tg3_ctrl |= (MII_TG3_CTRL_AS_MASTER |
- MII_TG3_CTRL_ENABLE_AS_MASTER);
- }
+ tg3_phy_set_wirespeed(tp);
mask = (ADVERTISED_10baseT_Half | ADVERTISED_10baseT_Full |
ADVERTISED_100baseT_Half | ADVERTISED_100baseT_Full |
ADVERTISED_1000baseT_Half | ADVERTISED_1000baseT_Full);
if (!tg3_copper_is_advertising_all(tp, mask)) {
- tg3_writephy(tp, MII_ADVERTISE, adv_reg);
-
- if (!(tp->phy_flags & TG3_PHYFLG_10_100_ONLY))
- tg3_writephy(tp, MII_TG3_CTRL, tg3_ctrl);
+ tg3_phy_autoneg_cfg(tp, tp->link_config.advertising,
+ tp->link_config.flowctrl);
tg3_writephy(tp, MII_BMCR,
BMCR_ANENABLE | BMCR_ANRESTART);
}
- tg3_phy_set_wirespeed(tp);
-
- tg3_writephy(tp, MII_ADVERTISE, adv_reg);
- if (!(tp->phy_flags & TG3_PHYFLG_10_100_ONLY))
- tg3_writephy(tp, MII_TG3_CTRL, tg3_ctrl);
}
skip_phy_reset:
--
1.7.3.4
--
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