Dear maintainer,
Im developing device which is based on ARM processor and the processor
supports PCI Express root-port.
Im trying to install Intel X520-SR2 adapter on this device(Linux) but there
is problem when ixgbe driver probe device.
Here is brief system configuration.
Processor : ARM SoC (Cortex-A15, ARMv7)
Adapter : Intel® ETHERNET SERVER ADAPTER X520-SR2
(/w Intel DUAL RATE 1G/10G SFP+ SR : AFBR-703SDZ-IN2)
OS : Linux Kernel 3.9.0-rc4
I attached console log. (DEBUG definition added to driver to turn on
additional message)
In the log, I noticed some Eeprom log,
[ 10.430000] ixgbe 0000:01:00.0 (unregistered net_device): Eeprom
params: type = 1, size = 0, address bits: 16
So I checked code below, and found (with hw debugger) not only EEC but also
all other registers were filed with 0xffffffff
[ drivers/net/ethernet/intel/ixgbe/ixgbe_common.c ]
s32 ixgbe_init_eeprom_params_generic(struct ixgbe_hw *hw)
eec = IXGBE_READ_REG(hw, IXGBE_EEC)
It seemed to me there was problem on reading Eeprom but I couldnt go
further because I have no idea what is this Eeprom and how it could be read.
Please shed some light on this and give me any clue where can I start debug
from.
I have datasheet of 82599 (Intel Website) but dont have X520 adapter
datasheet or user-manual.
I would appreciate if you allow me to receive such document.
Best regards,
Minho Ban
SAMSUNG Electronics, Co., Ltd.
(Office) +82-31-301-8489 (Mobile) +82-10-8725-8864
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