diff options
| author | James Morris <jmorris@namei.org> | 2009-06-19 08:20:55 +1000 |
|---|---|---|
| committer | James Morris <jmorris@namei.org> | 2009-06-19 08:20:55 +1000 |
| commit | d905163c5b23f6d8511971e06081a1b525e8a0bd (patch) | |
| tree | f76918c1be802ec068d37763466f5518efdb690e /include/linux/mii.h | |
| parent | 44c2d9bdd7022ca7d240d5adc009296fc1c6ce08 (diff) | |
| parent | 0732f87761dbe417cb6e084b712d07e879e876ef (diff) | |
Merge branch 'master' into next
Diffstat (limited to 'include/linux/mii.h')
| -rw-r--r-- | include/linux/mii.h | 34 |
1 files changed, 22 insertions, 12 deletions
diff --git a/include/linux/mii.h b/include/linux/mii.h index ad748588faf..359fba88027 100644 --- a/include/linux/mii.h +++ b/include/linux/mii.h @@ -240,6 +240,22 @@ static inline unsigned int mii_duplex (unsigned int duplex_lock, } /** + * mii_advertise_flowctrl - get flow control advertisement flags + * @cap: Flow control capabilities (FLOW_CTRL_RX, FLOW_CTRL_TX or both) + */ +static inline u16 mii_advertise_flowctrl(int cap) +{ + u16 adv = 0; + + if (cap & FLOW_CTRL_RX) + adv = ADVERTISE_PAUSE_CAP | ADVERTISE_PAUSE_ASYM; + if (cap & FLOW_CTRL_TX) + adv ^= ADVERTISE_PAUSE_ASYM; + + return adv; +} + +/** * mii_resolve_flowctrl_fdx * @lcladv: value of MII ADVERTISE register * @rmtadv: value of MII LPA register @@ -250,18 +266,12 @@ static inline u8 mii_resolve_flowctrl_fdx(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)) + if (lcladv & rmtadv & ADVERTISE_PAUSE_CAP) { + cap = FLOW_CTRL_TX | FLOW_CTRL_RX; + } else if (lcladv & rmtadv & ADVERTISE_PAUSE_ASYM) { + if (lcladv & ADVERTISE_PAUSE_CAP) + cap = FLOW_CTRL_RX; + else if (rmtadv & ADVERTISE_PAUSE_CAP) cap = FLOW_CTRL_TX; } |