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sfc: Use generic MDIO flow control auto-negotiation functions

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Signed-off-by: Ben Hutchings <bhutchings@solarflare.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Ben Hutchings
2009-04-29 08:20:37 +00:00
committed by David S. Miller
parent af2a3eac2f
commit 3f926da82f
5 changed files with 7 additions and 48 deletions
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26
drivers/net/sfc/net_driver.h
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@@ -495,8 +495,8 @@ struct efx_nic;
/* Pseudo bit-mask flow control field */
enum efx_fc_type {
EFX_FC_RX = 1,
EFX_FC_TX = 2,
EFX_FC_RX = FLOW_CTRL_RX,
EFX_FC_TX = FLOW_CTRL_TX,
EFX_FC_AUTO = 4,
};
@@ -506,33 +506,15 @@ enum efx_mac_type {
EFX_XMAC = 2,
};
static inline unsigned int efx_fc_advertise(enum efx_fc_type wanted_fc)
{
unsigned int adv = 0;
if (wanted_fc & EFX_FC_RX)
adv = ADVERTISE_PAUSE_CAP | ADVERTISE_PAUSE_ASYM;
if (wanted_fc & EFX_FC_TX)
adv ^= ADVERTISE_PAUSE_ASYM;
return adv;
}
static inline enum efx_fc_type efx_fc_resolve(enum efx_fc_type wanted_fc,
unsigned int lpa)
{
unsigned int adv = efx_fc_advertise(wanted_fc);
BUILD_BUG_ON(EFX_FC_AUTO & (EFX_FC_RX | EFX_FC_TX));
if (!(wanted_fc & EFX_FC_AUTO))
return wanted_fc;
if (adv & lpa & ADVERTISE_PAUSE_CAP)
return EFX_FC_RX | EFX_FC_TX;
if (adv & lpa & ADVERTISE_PAUSE_ASYM) {
if (adv & ADVERTISE_PAUSE_CAP)
return EFX_FC_RX;
if (lpa & ADVERTISE_PAUSE_CAP)
return EFX_FC_TX;
}
return 0;
return mii_resolve_flowctrl_fdx(mii_advertise_flowctrl(wanted_fc), lpa);
}
/**