Hello,
We have an 1g Intel Card[82576] with Fiber SFP connected operating in
SR-IOV mode.
We always poll for link status from the VF driver. What is the reliable way
to get the link status in case of Fibre SFPs?
On the native PF driver 5.2.5 [and earlier], in
e1000_get_pcs_speed_and_duplex_82575() routine, we see a comment which says
E1000_STATUS register is not reliable in non-copper mode
and E1000_PCS_LSTAT register is used.
/*
* Read the PCS Status register for link state. For non-copper mode,
* the status register is not accurate. The PCS status register is
* used instead.
*/
pcs = E1000_READ_REG(hw, E1000_PCS_LSTAT);
My question:
1) Is E1000_PCS_LSTAT register available to the VF driver?
2) Is there any workaround available? when we read from E1000_STATUS, the
link status is not reflected correctly.
Your inputs would be helpful.
Thanks,
Nirmal
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