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Date: Wed, 13 Jul 2011 12:27:32 -0700
From: "Matt Carlson" <mcarlson@...adcom.com>
To: davem@...emloft.net
cc: netdev@...r.kernel.org, mcarlson@...adcom.com
Subject: [PATCH net-next 6/7] tg3: Add function status reporting
This patch adds code to update the status of the function to a common
location to the critical section added in the previous patch.
Signed-off-by: Matt Carlson <mcarlson@...adcom.com>
---
drivers/net/tg3.c | 111 +++++++++++++++++++++++++++++++++++++++++-----------
drivers/net/tg3.h | 4 ++
2 files changed, 91 insertions(+), 24 deletions(-)
diff --git a/drivers/net/tg3.c b/drivers/net/tg3.c
index 4137e4e..0d1b0c0 100644
--- a/drivers/net/tg3.c
+++ b/drivers/net/tg3.c
@@ -2192,18 +2192,66 @@ out:
return 0;
}
+#define TG3_GPIO_MSG_DRVR_PRES 0x00000001
+#define TG3_GPIO_MSG_NEED_VAUX 0x00000002
+#define TG3_GPIO_MSG_MASK (TG3_GPIO_MSG_DRVR_PRES | \
+ TG3_GPIO_MSG_NEED_VAUX)
+#define TG3_GPIO_MSG_ALL_DRVR_PRES_MASK \
+ ((TG3_GPIO_MSG_DRVR_PRES << 0) | \
+ (TG3_GPIO_MSG_DRVR_PRES << 4) | \
+ (TG3_GPIO_MSG_DRVR_PRES << 8) | \
+ (TG3_GPIO_MSG_DRVR_PRES << 12))
+
+#define TG3_GPIO_MSG_ALL_NEED_VAUX_MASK \
+ ((TG3_GPIO_MSG_NEED_VAUX << 0) | \
+ (TG3_GPIO_MSG_NEED_VAUX << 4) | \
+ (TG3_GPIO_MSG_NEED_VAUX << 8) | \
+ (TG3_GPIO_MSG_NEED_VAUX << 12))
+
+static inline u32 tg3_set_function_status(struct tg3 *tp, u32 newstat)
+{
+ u32 status, shift;
+
+ if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5717 ||
+ GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5719)
+ status = tg3_ape_read32(tp, TG3_APE_GPIO_MSG);
+ else
+ status = tr32(TG3_CPMU_DRV_STATUS);
+
+ shift = TG3_APE_GPIO_MSG_SHIFT + 4 * tp->pci_fn;
+ status &= ~(TG3_GPIO_MSG_MASK << shift);
+ status |= (newstat << shift);
+
+ if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5717 ||
+ GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5719)
+ tg3_ape_write32(tp, TG3_APE_GPIO_MSG, status);
+ else
+ tw32(TG3_CPMU_DRV_STATUS, status);
+
+ return status >> TG3_APE_GPIO_MSG_SHIFT;
+}
+
static inline int tg3_pwrsrc_switch_to_vmain(struct tg3 *tp)
{
if (!tg3_flag(tp, IS_NIC))
- return;
-
- if (tg3_ape_lock(tp, TG3_APE_LOCK_GPIO))
return 0;
- tw32_wait_f(GRC_LOCAL_CTRL, tp->grc_local_ctrl,
- TG3_GRC_LCLCTL_PWRSW_DELAY);
+ if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5717 ||
+ GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5719 ||
+ GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5720) {
+ if (tg3_ape_lock(tp, TG3_APE_LOCK_GPIO))
+ return -EIO;
- tg3_ape_unlock(tp, TG3_APE_LOCK_GPIO);
+ tg3_set_function_status(tp, TG3_GPIO_MSG_DRVR_PRES);
+
+ tw32_wait_f(GRC_LOCAL_CTRL, tp->grc_local_ctrl,
+ TG3_GRC_LCLCTL_PWRSW_DELAY);
+
+ tg3_ape_unlock(tp, TG3_APE_LOCK_GPIO);
+ } else {
+ tw32_wait_f(GRC_LOCAL_CTRL, tp->grc_local_ctrl,
+ TG3_GRC_LCLCTL_PWRSW_DELAY);
+ }
return 0;
}
@@ -2217,10 +2265,6 @@ static void tg3_pwrsrc_die_with_vmain(struct tg3 *tp)
GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5701)
return;
-
- if (tg3_ape_lock(tp, TG3_APE_LOCK_GPIO))
- return;
-
grc_local_ctrl = tp->grc_local_ctrl | GRC_LCLCTRL_GPIO_OE1;
tw32_wait_f(GRC_LOCAL_CTRL,
@@ -2234,8 +2278,6 @@ static void tg3_pwrsrc_die_with_vmain(struct tg3 *tp)
tw32_wait_f(GRC_LOCAL_CTRL,
grc_local_ctrl | GRC_LCLCTRL_GPIO_OUTPUT1,
TG3_GRC_LCLCTL_PWRSW_DELAY);
-
- tg3_ape_unlock(tp, TG3_APE_LOCK_GPIO);
}
static void tg3_pwrsrc_switch_to_vaux(struct tg3 *tp)
@@ -2243,9 +2285,6 @@ static void tg3_pwrsrc_switch_to_vaux(struct tg3 *tp)
if (!tg3_flag(tp, IS_NIC))
return;
- if (tg3_ape_lock(tp, TG3_APE_LOCK_GPIO))
- return;
-
if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5700 ||
GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5701) {
tw32_wait_f(GRC_LOCAL_CTRL, tp->grc_local_ctrl |
@@ -2316,7 +2355,31 @@ static void tg3_pwrsrc_switch_to_vaux(struct tg3 *tp)
TG3_GRC_LCLCTL_PWRSW_DELAY);
}
}
+}
+
+static void tg3_frob_aux_power_5717(struct tg3 *tp)
+{
+ u32 msg = 0;
+
+ /* Serialize power state transitions */
+ if (tg3_ape_lock(tp, TG3_APE_LOCK_GPIO))
+ return;
+
+ if (tg3_flag(tp, ENABLE_ASF) || tg3_flag(tp, ENABLE_APE) ||
+ tg3_flag(tp, WOL_ENABLE))
+ msg = TG3_GPIO_MSG_NEED_VAUX;
+
+ msg = tg3_set_function_status(tp, msg);
+
+ if (msg & TG3_GPIO_MSG_ALL_DRVR_PRES_MASK)
+ goto done;
+ if (msg & TG3_GPIO_MSG_ALL_NEED_VAUX_MASK)
+ tg3_pwrsrc_switch_to_vaux(tp);
+ else
+ tg3_pwrsrc_die_with_vmain(tp);
+
+done:
tg3_ape_unlock(tp, TG3_APE_LOCK_GPIO);
}
@@ -2326,15 +2389,17 @@ static void tg3_frob_aux_power(struct tg3 *tp)
/* The GPIOs do something completely different on 57765. */
if (!tg3_flag(tp, IS_NIC) ||
- GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5719 ||
GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_57765)
return;
- if ((GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5704 ||
- GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5714 ||
- GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5717 ||
- GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5720) &&
- tp->pdev_peer != tp->pdev) {
+ if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5717 ||
+ GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5719 ||
+ GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5720) {
+ tg3_frob_aux_power_5717(tp);
+ return;
+ }
+
+ if (tp->pdev_peer && tp->pdev_peer != tp->pdev) {
struct net_device *dev_peer;
dev_peer = pci_get_drvdata(tp->pdev_peer);
@@ -13692,9 +13757,7 @@ static int __devinit tg3_get_invariants(struct tg3 *tp)
}
if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5704 ||
- GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5714 ||
- GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5717 ||
- GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5720)
+ GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5714)
tp->pdev_peer = tg3_find_peer(tp);
if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5717 ||
diff --git a/drivers/net/tg3.h b/drivers/net/tg3.h
index e444469..6a43fc5 100644
--- a/drivers/net/tg3.h
+++ b/drivers/net/tg3.h
@@ -1065,6 +1065,8 @@
#define RCVLSC_STATUS_ERROR_ATTN 0x00000004
/* 0x3408 --> 0x3600 unused */
+#define TG3_CPMU_DRV_STATUS 0x0000344c
+
/* CPMU registers */
#define TG3_CPMU_CTRL 0x00003600
#define CPMU_CTRL_LINK_IDLE_MODE 0x00000200
@@ -2277,6 +2279,8 @@
/* APE registers. Accessible through BAR1 */
+#define TG3_APE_GPIO_MSG 0x0008
+#define TG3_APE_GPIO_MSG_SHIFT 4
#define TG3_APE_EVENT 0x000c
#define APE_EVENT_1 0x00000001
#define TG3_APE_LOCK_REQ 0x002c
--
1.7.3.4
--
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