Gitweb:
http://git.kernel.org/git/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=e8f3f6cad7e423253090887bc4afe7bc844162da
Commit: e8f3f6cad7e423253090887bc4afe7bc844162da
Parent: 469665459d26da8d0b46c70d070da1e192e48e46
Author: Matt Carlson <[EMAIL PROTECTED]>
AuthorDate: Wed Jul 11 19:47:55 2007 -0700
Committer: David S. Miller <[EMAIL PROTECTED]>
CommitDate: Wed Jul 11 19:47:55 2007 -0700
[TG3]: Fix the polarity bit.
For most pre-5705 devices, multiple link interrupts were being generated
for a single physical link change. The source of the interrupts was
determined to be unnecessary toggling of the MAC link polarity bit.
This patch changes the way the link polarity bit gets configured. Where
possible, code that dynamically configures the bit in response to link
changes has been replaced by code that configures the bit once during
initialization time and then leaves the bit alone.
For correctness, this patch also limits the use of the bit to those
devices where it is defined, namely devices before the 5705. This patch
also corrects the link polarity configurations for 5700 devices when
paired against a bcm5411 phy.
Signed-off-by: Matt Carlson <[EMAIL PROTECTED]>
Signed-off-by: Michael Chan <[EMAIL PROTECTED]>
Signed-off-by: David S. Miller <[EMAIL PROTECTED]>
---
drivers/net/tg3.c | 63 +++++++++++++++++++++++++++++++++++++----------------
1 files changed, 44 insertions(+), 19 deletions(-)
diff --git a/drivers/net/tg3.c b/drivers/net/tg3.c
index 314f5cf..1df129a 100644
--- a/drivers/net/tg3.c
+++ b/drivers/net/tg3.c
@@ -1162,6 +1162,19 @@ static void tg3_frob_aux_power(struct tg3 *tp)
}
}
+static int tg3_5700_link_polarity(struct tg3 *tp, u32 speed)
+{
+ if (tp->led_ctrl == LED_CTRL_MODE_PHY_2)
+ return 1;
+ else if ((tp->phy_id & PHY_ID_MASK) == PHY_ID_BCM5411) {
+ if (speed != SPEED_10)
+ return 1;
+ } else if (speed == SPEED_10)
+ return 1;
+
+ return 0;
+}
+
static int tg3_setup_phy(struct tg3 *, int);
#define RESET_KIND_SHUTDOWN 0
@@ -1320,9 +1333,17 @@ static int tg3_set_power_state(struct tg3 *tp,
pci_power_t state)
else
mac_mode = MAC_MODE_PORT_MODE_MII;
- if (GET_ASIC_REV(tp->pci_chip_rev_id) != ASIC_REV_5700
||
- !(tp->tg3_flags & TG3_FLAG_WOL_SPEED_100MB))
- mac_mode |= MAC_MODE_LINK_POLARITY;
+ mac_mode |= tp->mac_mode & MAC_MODE_LINK_POLARITY;
+ if (GET_ASIC_REV(tp->pci_chip_rev_id) ==
+ ASIC_REV_5700) {
+ u32 speed = (tp->tg3_flags &
+ TG3_FLAG_WOL_SPEED_100MB) ?
+ SPEED_100 : SPEED_10;
+ if (tg3_5700_link_polarity(tp, speed))
+ mac_mode |= MAC_MODE_LINK_POLARITY;
+ else
+ mac_mode &= ~MAC_MODE_LINK_POLARITY;
+ }
} else {
mac_mode = MAC_MODE_PORT_MODE_TBI;
}
@@ -1990,15 +2011,12 @@ relink:
if (tp->link_config.active_duplex == DUPLEX_HALF)
tp->mac_mode |= MAC_MODE_HALF_DUPLEX;
- tp->mac_mode &= ~MAC_MODE_LINK_POLARITY;
if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5700) {
- if ((tp->led_ctrl == LED_CTRL_MODE_PHY_2) ||
- (current_link_up == 1 &&
- tp->link_config.active_speed == SPEED_10))
- tp->mac_mode |= MAC_MODE_LINK_POLARITY;
- } else {
- if (current_link_up == 1)
+ if (current_link_up == 1 &&
+ tg3_5700_link_polarity(tp, tp->link_config.active_speed))
tp->mac_mode |= MAC_MODE_LINK_POLARITY;
+ else
+ tp->mac_mode &= ~MAC_MODE_LINK_POLARITY;
}
/* ??? Without this setting Netgear GA302T PHY does not
@@ -2639,6 +2657,9 @@ static int tg3_setup_fiber_by_hand(struct tg3 *tp, u32
mac_status)
tw32_f(MAC_MODE, (tp->mac_mode | MAC_MODE_SEND_CONFIGS));
udelay(40);
+
+ tw32_f(MAC_MODE, tp->mac_mode);
+ udelay(40);
}
out:
@@ -2698,10 +2719,6 @@ static int tg3_setup_fiber_phy(struct tg3 *tp, int
force_reset)
else
current_link_up = tg3_setup_fiber_by_hand(tp, mac_status);
- tp->mac_mode &= ~MAC_MODE_LINK_POLARITY;
- tw32_f(MAC_MODE, tp->mac_mode);
- udelay(40);
-
tp->hw_status->status =
(SD_STATUS_UPDATED |
(tp->hw_status->status & ~SD_STATUS_LINK_CHG));
@@ -6444,6 +6461,10 @@ static int tg3_reset_hw(struct tg3 *tp, int reset_phy)
tp->mac_mode = MAC_MODE_TXSTAT_ENABLE | MAC_MODE_RXSTAT_ENABLE |
MAC_MODE_TDE_ENABLE | MAC_MODE_RDE_ENABLE |
MAC_MODE_FHDE_ENABLE;
+ if (!(tp->tg3_flags2 & TG3_FLG2_5705_PLUS) &&
+ !(tp->tg3_flags2 & TG3_FLG2_PHY_SERDES) &&
+ GET_ASIC_REV(tp->pci_chip_rev_id) != ASIC_REV_5700)
+ tp->mac_mode |= MAC_MODE_LINK_POLARITY;
tw32_f(MAC_MODE, tp->mac_mode | MAC_MODE_RXSTAT_CLEAR |
MAC_MODE_TXSTAT_CLEAR);
udelay(40);
@@ -8805,7 +8826,9 @@ static int tg3_run_loopback(struct tg3 *tp, int
loopback_mode)
return 0;
mac_mode = (tp->mac_mode & ~MAC_MODE_PORT_MODE_MASK) |
- MAC_MODE_PORT_INT_LPBACK | MAC_MODE_LINK_POLARITY;
+ MAC_MODE_PORT_INT_LPBACK;
+ if (!(tp->tg3_flags2 & TG3_FLG2_5705_PLUS))
+ mac_mode |= MAC_MODE_LINK_POLARITY;
if (tp->tg3_flags & TG3_FLAG_10_100_ONLY)
mac_mode |= MAC_MODE_PORT_MODE_MII;
else
@@ -8835,8 +8858,7 @@ static int tg3_run_loopback(struct tg3 *tp, int
loopback_mode)
tg3_writephy(tp, MII_BMCR, val);
udelay(40);
- mac_mode = (tp->mac_mode & ~MAC_MODE_PORT_MODE_MASK) |
- MAC_MODE_LINK_POLARITY;
+ mac_mode = tp->mac_mode & ~MAC_MODE_PORT_MODE_MASK;
if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5906) {
tg3_writephy(tp, MII_TG3_EPHY_PTEST, 0x1800);
mac_mode |= MAC_MODE_PORT_MODE_MII;
@@ -8849,8 +8871,11 @@ static int tg3_run_loopback(struct tg3 *tp, int
loopback_mode)
udelay(10);
tw32_f(MAC_RX_MODE, tp->rx_mode);
}
- if ((tp->phy_id & PHY_ID_MASK) == PHY_ID_BCM5401) {
- mac_mode &= ~MAC_MODE_LINK_POLARITY;
+ if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5700) {
+ if ((tp->phy_id & PHY_ID_MASK) == PHY_ID_BCM5401)
+ mac_mode &= ~MAC_MODE_LINK_POLARITY;
+ else if ((tp->phy_id & PHY_ID_MASK) == PHY_ID_BCM5411)
+ mac_mode |= MAC_MODE_LINK_POLARITY;
tg3_writephy(tp, MII_TG3_EXT_CTRL,
MII_TG3_EXT_CTRL_LNK3_LED_MODE);
}
-
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