On Wed, 2012-01-18 at 22:45 +0100, Benny Amorsen wrote: > Jesse Brandeburg <[email protected]> writes: > > > For X520 adapters, the documentation[1] states that which SFP+ > > adapters are/are not supported. Direct attach cables are also > > supported. > > > > [1] http://www.intel.com/support/network/adapter/pro100/sb/CS-030612.htm > > I can't believe that locked optics have now arrived on commodity > hardware. I have been trying to migrate to all-Intel networking at work; > that effort is certainly on hold now.
I cannot understand why Intel are pulling a stunt like this! :-( I have read the code, and the limitation comes from a EEPROM setting on the NIC, see define "IXGBE_DEVICE_CAPS_ALLOW_ANY_SFP 0x1". Here is a (untested) patch I believe removes the limitation in the driver: [PATCH] ixgbe: Always allow any SFP+ regardless of EEPROM setting. Intel are trying to limit which SFP's we can use in our NICs. We don't like this practices in the Linux Kernel. Signed-off-by: Jesper Dangaard Brouer <[email protected]> --- drivers/net/ethernet/intel/ixgbe/ixgbe_phy.c | 2 ++ 1 files changed, 2 insertions(+), 0 deletions(-) diff --git a/drivers/net/ethernet/intel/ixgbe/ixgbe_phy.c b/drivers/net/ethernet/intel/ixgbe/ixgbe_phy.c index 7cf1e1f..2b13083 100644 --- a/drivers/net/ethernet/intel/ixgbe/ixgbe_phy.c +++ b/drivers/net/ethernet/intel/ixgbe/ixgbe_phy.c @@ -1061,6 +1061,8 @@ s32 ixgbe_identify_sfp_module_generic(struct ixgbe_hw *hw) } hw->mac.ops.get_device_caps(hw, &enforce_sfp); + /* Hack: Always allow any SFP regardless of EEPROM setting */ + enforce_sfp |= IXGBE_DEVICE_CAPS_ALLOW_ANY_SFP; if (!(enforce_sfp & IXGBE_DEVICE_CAPS_ALLOW_ANY_SFP) && !((hw->phy.sfp_type == ixgbe_sfp_type_1g_cu_core0) || (hw->phy.sfp_type == ixgbe_sfp_type_1g_cu_core1))) { ------------------------------------------------------------------------------ Keep Your Developer Skills Current with LearnDevNow! The most comprehensive online learning library for Microsoft developers is just $99.99! Visual Studio, SharePoint, SQL - plus HTML5, CSS3, MVC3, Metro Style Apps, more. Free future releases when you subscribe now! http://p.sf.net/sfu/learndevnow-d2d _______________________________________________ E1000-devel mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/e1000-devel To learn more about Intel® Ethernet, visit http://communities.intel.com/community/wired
