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tg3: Refine VAux decision process

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In the near future, the VAux switching decision process is going to get
more complicated.  This patch refines and consolidates the existing
algorithm in anticipation of the new scheme.

Signed-off-by: Matt Carlson <mcarlson@broadcom.com>
Reviewed-by: Michael Chan <mchan@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Matt Carlson 2011-03-09 16:58:23 +00:00 committed by David S. Miller
parent 4143470c10
commit 683644b747
1 changed files with 21 additions and 20 deletions
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41
drivers/net/tg3.c
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@ -2120,7 +2120,7 @@ static int tg3_phy_reset(struct tg3 *tp)
static void tg3_frob_aux_power(struct tg3 *tp)
{
struct tg3 *tp_peer = tp;
bool need_vaux = false;
/* The GPIOs do something completely different on 57765. */
if ((tp->tg3_flags2 & TG3_FLG2_IS_NIC) == 0 ||
@ -2128,23 +2128,32 @@ static void tg3_frob_aux_power(struct tg3 *tp)
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) {
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) &&
tp->pdev_peer != tp->pdev) {
struct net_device *dev_peer;
dev_peer = pci_get_drvdata(tp->pdev_peer);
/* remove_one() may have been run on the peer. */
if (!dev_peer)
tp_peer = tp;
else
tp_peer = netdev_priv(dev_peer);
if (dev_peer) {
struct tg3 *tp_peer = netdev_priv(dev_peer);
if (tp_peer->tg3_flags & TG3_FLAG_INIT_COMPLETE)
return;
if ((tp_peer->tg3_flags & TG3_FLAG_WOL_ENABLE) ||
(tp_peer->tg3_flags & TG3_FLAG_ENABLE_ASF))
need_vaux = true;
}
}
if ((tp->tg3_flags & TG3_FLAG_WOL_ENABLE) != 0 ||
(tp->tg3_flags & TG3_FLAG_ENABLE_ASF) != 0 ||
(tp_peer->tg3_flags & TG3_FLAG_WOL_ENABLE) != 0 ||
(tp_peer->tg3_flags & TG3_FLAG_ENABLE_ASF) != 0) {
if ((tp->tg3_flags & TG3_FLAG_WOL_ENABLE) ||
(tp->tg3_flags & TG3_FLAG_ENABLE_ASF))
need_vaux = true;
if (need_vaux) {
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 |
@ -2174,10 +2183,6 @@ static void tg3_frob_aux_power(struct tg3 *tp)
u32 no_gpio2;
u32 grc_local_ctrl = 0;
if (tp_peer != tp &&
(tp_peer->tg3_flags & TG3_FLAG_INIT_COMPLETE) != 0)
return;
/* Workaround to prevent overdrawing Amps. */
if (GET_ASIC_REV(tp->pci_chip_rev_id) ==
ASIC_REV_5714) {
@ -2216,10 +2221,6 @@ static void tg3_frob_aux_power(struct tg3 *tp)
} else {
if (GET_ASIC_REV(tp->pci_chip_rev_id) != ASIC_REV_5700 &&
GET_ASIC_REV(tp->pci_chip_rev_id) != ASIC_REV_5701) {
if (tp_peer != tp &&
(tp_peer->tg3_flags & TG3_FLAG_INIT_COMPLETE) != 0)
return;
tw32_wait_f(GRC_LOCAL_CTRL, tp->grc_local_ctrl |
(GRC_LCLCTRL_GPIO_OE1 |
GRC_LCLCTRL_GPIO_OUTPUT1), 100);