2008-02-23 17:57:18

by Laura Garcia

[permalink] [raw]
Subject: [PATCH 2/2]via-rhine.c: Write-Wake-on-LAN-options-in-_real-time_-not-at-shutdown

Write Wake-on-LAN options in _real time_ not at shutdown. It might
be safe in case of power outage.

Signed-off-by: Laura Garcia Liebana <[email protected]>

modified: drivers/net/via-rhine.c
---
drivers/net/via-rhine.c | 76 +++++++++++++++++++++++++---------------------
1 files changed, 41 insertions(+), 35 deletions(-)

diff --git a/drivers/net/via-rhine.c b/drivers/net/via-rhine.c
index 8c9d6ae..7723ec0 100644
--- a/drivers/net/via-rhine.c
+++ b/drivers/net/via-rhine.c
@@ -418,6 +418,7 @@ static void rhine_tx(struct net_device *dev);
static int rhine_rx(struct net_device *dev, int limit);
static void rhine_error(struct net_device *dev, int intr_status);
static void rhine_set_rx_mode(struct net_device *dev);
+static void rhine_write_wol(struct net_device *dev);
static struct net_device_stats *rhine_get_stats(struct net_device *dev);
static int netdev_ioctl(struct net_device *dev, struct ifreq *rq, int cmd);
static const struct ethtool_ops netdev_ethtool_ops;
@@ -1772,7 +1773,7 @@ static void rhine_get_wol(struct net_device *dev, struct ethtool_wolinfo *wol)
struct rhine_private *rp = netdev_priv(dev);

if (!(rp->quirks & rqWOL))
- return;
+ return; /* Nothing to do for non-WOL adapters */

spin_lock_irq(&rp->lock);
wol->supported = WAKE_PHY | WAKE_MAGIC |
@@ -1788,7 +1789,7 @@ static int rhine_set_wol(struct net_device *dev, struct ethtool_wolinfo *wol)
WAKE_UCAST | WAKE_MCAST | WAKE_BCAST; /* Untested */

if (!(rp->quirks & rqWOL))
- return -EINVAL;
+ return -EINVAL; /* Nothing to do for non-WOL adapters */

if (wol->wolopts & ~support)
return -EINVAL;
@@ -1797,9 +1798,47 @@ static int rhine_set_wol(struct net_device *dev, struct ethtool_wolinfo *wol)
rp->wolopts = wol->wolopts;
spin_unlock_irq(&rp->lock);

+ rhine_write_wol(dev);
+
return 0;
}

+static void rhine_write_wol(struct net_device *dev)
+{
+ struct rhine_private *rp = netdev_priv(dev);
+ void __iomem *ioaddr = rp->base;
+
+ rhine_power_init(dev);
+
+ /* Make sure we use pattern 0, 1 and not 4, 5 */
+ if (rp->quirks & rq6patterns)
+ iowrite8(0x04, ioaddr + WOLcgClr);
+
+ if (rp->wolopts & WAKE_MAGIC) {
+ iowrite8(WOLmagic, ioaddr + WOLcrSet);
+ /*
+ * Turn EEPROM-controlled wake-up back on -- some hardware may
+ * not cooperate otherwise.
+ */
+ iowrite8(ioread8(ioaddr + ConfigA) | 0x03, ioaddr + ConfigA);
+ }
+
+ if (rp->wolopts & (WAKE_BCAST|WAKE_MCAST))
+ iowrite8(WOLbmcast, ioaddr + WOLcgSet);
+
+ if (rp->wolopts & WAKE_PHY)
+ iowrite8(WOLlnkon | WOLlnkoff, ioaddr + WOLcrSet);
+
+ if (rp->wolopts & WAKE_UCAST)
+ iowrite8(WOLucast, ioaddr + WOLcrSet);
+
+ if (rp->wolopts) {
+ /* Enable legacy WOL (for old motherboards) */
+ iowrite8(0x01, ioaddr + PwcfgSet);
+ iowrite8(ioread8(ioaddr + StickyHW) | 0x04, ioaddr + StickyHW);
+ }
+}
+
static const struct ethtool_ops netdev_ethtool_ops = {
.get_drvinfo = netdev_get_drvinfo,
.get_settings = netdev_get_settings,
@@ -1886,39 +1925,6 @@ static void rhine_shutdown (struct pci_dev *pdev)
struct rhine_private *rp = netdev_priv(dev);
void __iomem *ioaddr = rp->base;

- if (!(rp->quirks & rqWOL))
- return; /* Nothing to do for non-WOL adapters */
-
- rhine_power_init(dev);
-
- /* Make sure we use pattern 0, 1 and not 4, 5 */
- if (rp->quirks & rq6patterns)
- iowrite8(0x04, ioaddr + WOLcgClr);
-
- if (rp->wolopts & WAKE_MAGIC) {
- iowrite8(WOLmagic, ioaddr + WOLcrSet);
- /*
- * Turn EEPROM-controlled wake-up back on -- some hardware may
- * not cooperate otherwise.
- */
- iowrite8(ioread8(ioaddr + ConfigA) | 0x03, ioaddr + ConfigA);
- }
-
- if (rp->wolopts & (WAKE_BCAST|WAKE_MCAST))
- iowrite8(WOLbmcast, ioaddr + WOLcgSet);
-
- if (rp->wolopts & WAKE_PHY)
- iowrite8(WOLlnkon | WOLlnkoff, ioaddr + WOLcrSet);
-
- if (rp->wolopts & WAKE_UCAST)
- iowrite8(WOLucast, ioaddr + WOLcrSet);
-
- if (rp->wolopts) {
- /* Enable legacy WOL (for old motherboards) */
- iowrite8(0x01, ioaddr + PwcfgSet);
- iowrite8(ioread8(ioaddr + StickyHW) | 0x04, ioaddr + StickyHW);
- }
-
/* Hit power state D3 (sleep) */
if (!avoid_D3)
iowrite8(ioread8(ioaddr + StickyHW) | 0x03, ioaddr + StickyHW);
--
1.5.3.8


2008-03-05 11:20:22

by Jeff Garzik

[permalink] [raw]
Subject: Re: [PATCH 2/2]via-rhine.c: Write-Wake-on-LAN-options-in-_real-time_-not-at-shutdown

Laura Garcia wrote:
> Write Wake-on-LAN options in _real time_ not at shutdown. It might
> be safe in case of power outage.
>
> Signed-off-by: Laura Garcia Liebana <[email protected]>
>
> modified: drivers/net/via-rhine.c
> ---
> drivers/net/via-rhine.c | 76 +++++++++++++++++++++++++---------------------
> 1 files changed, 41 insertions(+), 35 deletions(-)
>
> diff --git a/drivers/net/via-rhine.c b/drivers/net/via-rhine.c
> index 8c9d6ae..7723ec0 100644
> --- a/drivers/net/via-rhine.c
> +++ b/drivers/net/via-rhine.c
> @@ -418,6 +418,7 @@ static void rhine_tx(struct net_device *dev);
> static int rhine_rx(struct net_device *dev, int limit);
> static void rhine_error(struct net_device *dev, int intr_status);
> static void rhine_set_rx_mode(struct net_device *dev);
> +static void rhine_write_wol(struct net_device *dev);
> static struct net_device_stats *rhine_get_stats(struct net_device *dev);
> static int netdev_ioctl(struct net_device *dev, struct ifreq *rq, int cmd);
> static const struct ethtool_ops netdev_ethtool_ops;
> @@ -1772,7 +1773,7 @@ static void rhine_get_wol(struct net_device *dev, struct ethtool_wolinfo *wol)
> struct rhine_private *rp = netdev_priv(dev);
>
> if (!(rp->quirks & rqWOL))
> - return;
> + return; /* Nothing to do for non-WOL adapters */
>
> spin_lock_irq(&rp->lock);
> wol->supported = WAKE_PHY | WAKE_MAGIC |
> @@ -1788,7 +1789,7 @@ static int rhine_set_wol(struct net_device *dev, struct ethtool_wolinfo *wol)
> WAKE_UCAST | WAKE_MCAST | WAKE_BCAST; /* Untested */
>
> if (!(rp->quirks & rqWOL))
> - return -EINVAL;
> + return -EINVAL; /* Nothing to do for non-WOL adapters */
>
> if (wol->wolopts & ~support)
> return -EINVAL;
> @@ -1797,9 +1798,47 @@ static int rhine_set_wol(struct net_device *dev, struct ethtool_wolinfo *wol)
> rp->wolopts = wol->wolopts;
> spin_unlock_irq(&rp->lock);
>
> + rhine_write_wol(dev);
> +
> return 0;
> }
>
> +static void rhine_write_wol(struct net_device *dev)
> +{
> + struct rhine_private *rp = netdev_priv(dev);
> + void __iomem *ioaddr = rp->base;
> +
> + rhine_power_init(dev);
> +
> + /* Make sure we use pattern 0, 1 and not 4, 5 */
> + if (rp->quirks & rq6patterns)
> + iowrite8(0x04, ioaddr + WOLcgClr);
> +
> + if (rp->wolopts & WAKE_MAGIC) {
> + iowrite8(WOLmagic, ioaddr + WOLcrSet);
> + /*
> + * Turn EEPROM-controlled wake-up back on -- some hardware may
> + * not cooperate otherwise.
> + */
> + iowrite8(ioread8(ioaddr + ConfigA) | 0x03, ioaddr + ConfigA);
> + }
> +
> + if (rp->wolopts & (WAKE_BCAST|WAKE_MCAST))
> + iowrite8(WOLbmcast, ioaddr + WOLcgSet);
> +
> + if (rp->wolopts & WAKE_PHY)
> + iowrite8(WOLlnkon | WOLlnkoff, ioaddr + WOLcrSet);
> +
> + if (rp->wolopts & WAKE_UCAST)
> + iowrite8(WOLucast, ioaddr + WOLcrSet);
> +
> + if (rp->wolopts) {
> + /* Enable legacy WOL (for old motherboards) */
> + iowrite8(0x01, ioaddr + PwcfgSet);
> + iowrite8(ioread8(ioaddr + StickyHW) | 0x04, ioaddr + StickyHW);
> + }
> +}
> +
> static const struct ethtool_ops netdev_ethtool_ops = {
> .get_drvinfo = netdev_get_drvinfo,
> .get_settings = netdev_get_settings,
> @@ -1886,39 +1925,6 @@ static void rhine_shutdown (struct pci_dev *pdev)
> struct rhine_private *rp = netdev_priv(dev);
> void __iomem *ioaddr = rp->base;
>
> - if (!(rp->quirks & rqWOL))
> - return; /* Nothing to do for non-WOL adapters */
> -
> - rhine_power_init(dev);
> -
> - /* Make sure we use pattern 0, 1 and not 4, 5 */
> - if (rp->quirks & rq6patterns)
> - iowrite8(0x04, ioaddr + WOLcgClr);
> -
> - if (rp->wolopts & WAKE_MAGIC) {
> - iowrite8(WOLmagic, ioaddr + WOLcrSet);
> - /*
> - * Turn EEPROM-controlled wake-up back on -- some hardware may
> - * not cooperate otherwise.
> - */
> - iowrite8(ioread8(ioaddr + ConfigA) | 0x03, ioaddr + ConfigA);
> - }
> -
> - if (rp->wolopts & (WAKE_BCAST|WAKE_MCAST))
> - iowrite8(WOLbmcast, ioaddr + WOLcgSet);
> -
> - if (rp->wolopts & WAKE_PHY)
> - iowrite8(WOLlnkon | WOLlnkoff, ioaddr + WOLcrSet);
> -
> - if (rp->wolopts & WAKE_UCAST)
> - iowrite8(WOLucast, ioaddr + WOLcrSet);
> -
> - if (rp->wolopts) {
> - /* Enable legacy WOL (for old motherboards) */
> - iowrite8(0x01, ioaddr + PwcfgSet);
> - iowrite8(ioread8(ioaddr + StickyHW) | 0x04, ioaddr + StickyHW);
> - }

can you please first create a patch that moves code into
rhine_set_wol(), yet changes no behavior?

That makes for an easier review, and a better bisect'ing step