diff options
| author | Russell King <rmk+kernel@armlinux.org.uk> | 2017-12-29 12:15:28 +0000 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2018-01-02 21:45:32 -0500 |
| commit | f10fcbcf91006a3223cffbc413b5abe17cf46937 (patch) | |
| tree | b33bde0471067834d32d6e7c8950191804efe3f3 /drivers/net/phy/sfp-bus.c | |
| parent | 9962acf7fb8c5c5a28e137d2102ee81b51b4111b (diff) | |
| download | linux-rt-f10fcbcf91006a3223cffbc413b5abe17cf46937.tar.gz | |
sfp: improve support for direct-attach copper cables
Improve the support for direct-attach copper so that we avoid kernel
warning messages, and report the appropriate PORT_DA type to userspace.
Direct Attach cables can use a number of protocols depending on their
range of speeds.
Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net/phy/sfp-bus.c')
| -rw-r--r-- | drivers/net/phy/sfp-bus.c | 51 |
1 files changed, 44 insertions, 7 deletions
diff --git a/drivers/net/phy/sfp-bus.c b/drivers/net/phy/sfp-bus.c index ba42e39bd112..3ecc378e0716 100644 --- a/drivers/net/phy/sfp-bus.c +++ b/drivers/net/phy/sfp-bus.c @@ -57,21 +57,19 @@ int sfp_parse_port(struct sfp_bus *bus, const struct sfp_eeprom_id *id, case SFP_CONNECTOR_MT_RJ: case SFP_CONNECTOR_MU: case SFP_CONNECTOR_OPTICAL_PIGTAIL: - if (support) - phylink_set(support, FIBRE); port = PORT_FIBRE; break; case SFP_CONNECTOR_RJ45: - if (support) - phylink_set(support, TP); port = PORT_TP; break; + case SFP_CONNECTOR_COPPER_PIGTAIL: + port = PORT_DA; + break; + case SFP_CONNECTOR_UNSPEC: if (id->base.e1000_base_t) { - if (support) - phylink_set(support, TP); port = PORT_TP; break; } @@ -80,7 +78,6 @@ int sfp_parse_port(struct sfp_bus *bus, const struct sfp_eeprom_id *id, case SFP_CONNECTOR_MPO_1X12: case SFP_CONNECTOR_MPO_2X16: case SFP_CONNECTOR_HSSDC_II: - case SFP_CONNECTOR_COPPER_PIGTAIL: case SFP_CONNECTOR_NOSEPARATE: case SFP_CONNECTOR_MXC_2X16: port = PORT_OTHER; @@ -92,6 +89,18 @@ int sfp_parse_port(struct sfp_bus *bus, const struct sfp_eeprom_id *id, break; } + if (support) { + switch (port) { + case PORT_FIBRE: + phylink_set(support, FIBRE); + break; + + case PORT_TP: + phylink_set(support, TP); + break; + } + } + return port; } EXPORT_SYMBOL_GPL(sfp_parse_port); @@ -143,6 +152,11 @@ phy_interface_t sfp_parse_interface(struct sfp_bus *bus, break; default: + if (id->base.e1000_base_cx) { + iface = PHY_INTERFACE_MODE_1000BASEX; + break; + } + iface = PHY_INTERFACE_MODE_NA; dev_err(bus->sfp_dev, "SFP module encoding does not support 8b10b nor 64b66b\n"); @@ -208,6 +222,29 @@ void sfp_parse_support(struct sfp_bus *bus, const struct sfp_eeprom_id *id, br_min <= 1300 && br_max >= 1200) phylink_set(support, 1000baseX_Full); + /* For active or passive cables, select the link modes + * based on the bit rates and the cable compliance bytes. + */ + if ((id->base.sfp_ct_passive || id->base.sfp_ct_active) && br_nom) { + /* This may look odd, but some manufacturers use 12000MBd */ + if (br_min <= 12000 && br_max >= 10300) + phylink_set(support, 10000baseCR_Full); + if (br_min <= 3200 && br_max >= 3100) + phylink_set(support, 2500baseX_Full); + if (br_min <= 1300 && br_max >= 1200) + phylink_set(support, 1000baseX_Full); + } + if (id->base.sfp_ct_passive) { + if (id->base.passive.sff8431_app_e) + phylink_set(support, 10000baseCR_Full); + } + if (id->base.sfp_ct_active) { + if (id->base.active.sff8431_app_e || + id->base.active.sff8431_lim) { + phylink_set(support, 10000baseCR_Full); + } + } + switch (id->base.extended_cc) { case 0x00: /* Unspecified */ break; |