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ethtool/mdio: Support backplane mode negotiation 

Compile-tested only.

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 08:25:57 +00:00 committed by David S. Miller
parent 0c09c1a49c
commit 894b19a6b3
3 changed files with 40 additions and 5 deletions
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30
drivers/net/mdio.c
View File

@ -202,12 +202,29 @@ void mdio45_ethtool_gset_npage(const struct mdio_if_info *mdio,
break;
case MDIO_PMA_CTRL2_10GBCX4:
ecmd->port = PORT_OTHER;
ecmd->supported = 0;
ecmd->advertising = 0;
break;
case MDIO_PMA_CTRL2_10GBKX4:
case MDIO_PMA_CTRL2_10GBKR:
case MDIO_PMA_CTRL2_1000BKX:
ecmd->port = PORT_OTHER;
ecmd->supported = 0;
ecmd->advertising = 0;
ecmd->supported = SUPPORTED_Backplane;
reg = mdio->mdio_read(mdio->dev, mdio->prtad, MDIO_MMD_PMAPMD,
MDIO_PMA_EXTABLE);
if (reg & MDIO_PMA_EXTABLE_10GBKX4)
ecmd->supported |= SUPPORTED_10000baseKX4_Full;
if (reg & MDIO_PMA_EXTABLE_10GBKR)
ecmd->supported |= SUPPORTED_10000baseKR_Full;
if (reg & MDIO_PMA_EXTABLE_1000BKX)
ecmd->supported |= SUPPORTED_1000baseKX_Full;
reg = mdio->mdio_read(mdio->dev, mdio->prtad, MDIO_MMD_PMAPMD,
MDIO_PMA_10GBR_FECABLE);
if (reg & MDIO_PMA_10GBR_FECABLE_ABLE)
ecmd->supported |= SUPPORTED_10000baseR_FEC;
ecmd->advertising = ADVERTISED_Backplane;
break;
/* All the other defined modes are flavours of optical */
@ -252,13 +269,16 @@ void mdio45_ethtool_gset_npage(const struct mdio_if_info *mdio,
if ((modes & ~ADVERTISED_Autoneg) == 0)
modes = ecmd->advertising;
if (modes & ADVERTISED_10000baseT_Full) {
if (modes & (ADVERTISED_10000baseT_Full |
ADVERTISED_10000baseKX4_Full |
ADVERTISED_10000baseKR_Full)) {
ecmd->speed = SPEED_10000;
ecmd->duplex = DUPLEX_FULL;
} else if (modes & (ADVERTISED_1000baseT_Full |
ADVERTISED_1000baseT_Half)) {
ADVERTISED_1000baseT_Half |
ADVERTISED_1000baseKX_Full)) {
ecmd->speed = SPEED_1000;
ecmd->duplex = !!(modes & ADVERTISED_1000baseT_Full);
ecmd->duplex = !(modes & ADVERTISED_1000baseT_Half);
} else if (modes & (ADVERTISED_100baseT_Full |
ADVERTISED_100baseT_Half)) {
ecmd->speed = SPEED_100;

10
include/linux/ethtool.h
View File

@ -565,6 +565,11 @@ struct ethtool_ops {
#define SUPPORTED_Pause (1 << 13)
#define SUPPORTED_Asym_Pause (1 << 14)
#define SUPPORTED_2500baseX_Full (1 << 15)
#define SUPPORTED_Backplane (1 << 16)
#define SUPPORTED_1000baseKX_Full (1 << 17)
#define SUPPORTED_10000baseKX4_Full (1 << 18)
#define SUPPORTED_10000baseKR_Full (1 << 19)
#define SUPPORTED_10000baseR_FEC (1 << 20)
/* Indicates what features are advertised by the interface. */
#define ADVERTISED_10baseT_Half (1 << 0)
@ -583,6 +588,11 @@ struct ethtool_ops {
#define ADVERTISED_Pause (1 << 13)
#define ADVERTISED_Asym_Pause (1 << 14)
#define ADVERTISED_2500baseX_Full (1 << 15)
#define ADVERTISED_Backplane (1 << 16)
#define ADVERTISED_1000baseKX_Full (1 << 17)
#define ADVERTISED_10000baseKX4_Full (1 << 18)
#define ADVERTISED_10000baseKR_Full (1 << 19)
#define ADVERTISED_10000baseR_FEC (1 << 20)
/* The following are all involved in forcing a particular link
* mode for the device for setting things. When getting the

5
include/linux/mdio.h
View File

@ -46,6 +46,7 @@
/* Media-dependent registers. */
#define MDIO_PMA_10GBT_TXPWR 131 /* 10GBASE-T TX power control */
#define MDIO_PMA_10GBR_FECABLE 170 /* 10GBASE-R FEC ability */
#define MDIO_PCS_10GBX_STAT1 24 /* 10GBASE-X PCS status 1 */
#define MDIO_PCS_10GBRT_STAT1 32 /* 10GBASE-R/-T PCS status 1 */
#define MDIO_PCS_10GBRT_STAT2 33 /* 10GBASE-R/-T PCS status 2 */
@ -187,6 +188,10 @@
/* PMA 10GBASE-T TX power register. */
#define MDIO_PMA_10GBT_TXPWR_SHORT 0x0001 /* Short-reach mode */
/* PMA 10GBASE-R FEC ability register. */
#define MDIO_PMA_10GBR_FECABLE_ABLE 0x0001 /* FEC ability */
#define MDIO_PMA_10GBR_FECABLE_ERRABLE 0x0002 /* FEC error indic. ability */
/* PCS 10GBASE-R/-T status register 1. */
#define MDIO_PCS_10GBRT_STAT1_BLKLK 0x0001 /* Block lock attained */