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| author | Steve Glendinning <steve.glendinning@smsc.com> | 2008-12-16 02:00:48 -0800 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2008-12-16 02:00:48 -0800 |
| commit | bc02ff95fe4ebd3e5ee7455c0aa6f76ebe39ebca (patch) | |
| tree | 675887b8007a53464e84b9da2f7b54a77fab035a /drivers/net/usb | |
| parent | e18ce3465477502108187c6c08b6423fb784a313 (diff) | |
| download | linux-bc02ff95fe4ebd3e5ee7455c0aa6f76ebe39ebca.tar.gz linux-bc02ff95fe4ebd3e5ee7455c0aa6f76ebe39ebca.tar.bz2 linux-bc02ff95fe4ebd3e5ee7455c0aa6f76ebe39ebca.zip | |
net: Refactor full duplex flow control resolution
These 4 drivers have identical full duplex flow control resolution
functions. This patch changes them all to use one common function.
The function in question decides whether a device should enable TX and
RX flow control in a standard way (IEEE 802.3-2005 table 28B-3), so this
should also be useful for other drivers.
Signed-off-by: Steve Glendinning <steve.glendinning@smsc.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net/usb')
| -rw-r--r-- | drivers/net/usb/smsc95xx.c | 24 |
1 files changed, 1 insertions, 23 deletions
diff --git a/drivers/net/usb/smsc95xx.c b/drivers/net/usb/smsc95xx.c index ee2eac3047b3..fed22ffedd57 100644 --- a/drivers/net/usb/smsc95xx.c +++ b/drivers/net/usb/smsc95xx.c @@ -435,28 +435,6 @@ static void smsc95xx_set_multicast(struct net_device *netdev) smsc95xx_write_reg_async(dev, MAC_CR, &pdata->mac_cr); } -static u8 smsc95xx_resolve_flowctrl_fulldplx(u16 lcladv, u16 rmtadv) -{ - u8 cap = 0; - - if (lcladv & ADVERTISE_PAUSE_CAP) { - if (lcladv & ADVERTISE_PAUSE_ASYM) { - if (rmtadv & LPA_PAUSE_CAP) - cap = FLOW_CTRL_TX | FLOW_CTRL_RX; - else if (rmtadv & LPA_PAUSE_ASYM) - cap = FLOW_CTRL_RX; - } else { - if (rmtadv & LPA_PAUSE_CAP) - cap = FLOW_CTRL_TX | FLOW_CTRL_RX; - } - } else if (lcladv & ADVERTISE_PAUSE_ASYM) { - if ((rmtadv & LPA_PAUSE_CAP) && (rmtadv & LPA_PAUSE_ASYM)) - cap = FLOW_CTRL_TX; - } - - return cap; -} - static void smsc95xx_phy_update_flowcontrol(struct usbnet *dev, u8 duplex, u16 lcladv, u16 rmtadv) { @@ -469,7 +447,7 @@ static void smsc95xx_phy_update_flowcontrol(struct usbnet *dev, u8 duplex, } if (duplex == DUPLEX_FULL) { - u8 cap = smsc95xx_resolve_flowctrl_fulldplx(lcladv, rmtadv); + u8 cap = mii_resolve_flowctrl_fdx(lcladv, rmtadv); if (cap & FLOW_CTRL_RX) flow = 0xFFFF0002; |