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| author | Ben Hutchings <bhutchings@solarflare.com> | 2009-04-29 08:19:03 +0000 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2009-04-29 17:32:35 -0700 |
| commit | a8c30832b5b12e5d4e9d1c20cdac3cc2880e08b8 (patch) | |
| tree | ff4016ada65d46cf52582b4b23a4eddc92a371a9 /include/linux/mii.h | |
| parent | 44c22ee91b56d7cad3b48c439dd96aad2e910fbc (diff) | |
| download | linux-a8c30832b5b12e5d4e9d1c20cdac3cc2880e08b8.tar.gz linux-a8c30832b5b12e5d4e9d1c20cdac3cc2880e08b8.tar.bz2 linux-a8c30832b5b12e5d4e9d1c20cdac3cc2880e08b8.zip | |
mii: Add mii_advertise_flowctrl()
This converts flow control capabilites to an advertising mask and can
be useful in combination with mii_resolve_flowctrl_fdx().
Signed-off-by: Ben Hutchings <bhutchings@solarflare.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'include/linux/mii.h')
| -rw-r--r-- | include/linux/mii.h | 16 |
1 files changed, 16 insertions, 0 deletions
diff --git a/include/linux/mii.h b/include/linux/mii.h index 14ecb2e114f1..359fba880274 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 |