It's working, I had to make sure LINK_MODE is set to SGMII, that fixed it. Thanks, Joe
On Wed, Mar 26, 2014 at 1:19 PM, x aus <[email protected]> wrote: > We're using 82576 on a main board(ARM with PCIe x1) using 3.0.x kernel. I > can probe the device at the moment. > > I'm connecting the 82576 to a SFP which has an I2C for the external > PHY(RJ45), I also have EEPROM and SPI-Flash connected via SPI to 82576 > based on Intel's reference schematics. > > I have a list of questions: > 1. We're using SerDes to connect with the SFP, it's unclear to me per the > Datasheet that, should we use SGMII instead? what's the key difference > here? We're using RJ45/SFP but we may need use fiber/SFP later, which is > the reason we're not using the internal PHY. I saw there are some code for > SFP inside the igb driver. > > 2. On the EEPROM, do we have to use it? I think igb is getting deviceID > from the EEPROM, as 'lspci -v' showed 10c9:0000 now, the EEPROM is blank at > the moment, and I modified the code to bypass the MAC-address-reading from > EEPROM(providing some fake MACs for now) so I can run 'ifconfig eth0 up' > against it though I can never send out packets. > > 2.1 Is it possible at all the get this working without using EEPROM? > > 3. How to program the blank EEPROM, can I use ethtool do that? or do I > have to take it out and program it before solder it down? > > 4. When do I need SPI-Flash? do I need it at all? The datasheet says it > can hold some firmware but I'm not sure what it means. > > 5. From e1000_hw.h, 0x10C9 is for 82576 itself, the rest is for the > specific products, but what's the difference between Fiber, Serdes, copper? > In my case I use SFP/RJ45, is it more like Serdes or Copper or even > RGMII(there is aE1000_DEV_ID_I350_SGMII) , very confused. > > #define E1000_DEV_ID_82576 0x10C9 > #define E1000_DEV_ID_82576_FIBER 0x10E6 > #define E1000_DEV_ID_82576_SERDES 0x10E7 > #define E1000_DEV_ID_82576_QUAD_COPPER 0x10E8 > #define E1000_DEV_ID_82576_QUAD_COPPER_ET2 0x1526 > #define E1000_DEV_ID_82576_SERDES_QUAD 0x150D > > 6. I don't see MACSEC code in the driver, is it implemented at Intel but > just not open sourced? The Intel representative is unclear on that either. > > Basically I need confirm SerDes or RGMII for SFP, then learn how to modify > the driver and program EEPROM to get 82576 working on the custom design. > Any tips/suggestions are great appreciated! > > Thanks a lot. > > Joe >
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