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Ong Boon Leong authored
In order to discover whether remote station supports frame preemption, local station sends verify mPacket and expects response mPacket in return from the remote station. So, we add the functions to send and handle event when verify mPacket and response mPacket are exchanged between the networked stations. The mechanism to handle different FPE states between local and remote station (link partner) is implemented using workqueue which starts a task each time there is some sign of verify & response mPacket exchange as check in FPE IRQ event. The task retries couple of times to try to spot the states that both stations are ready to enter FPE ON. This allows different end points to enable FPE at different time and verify-response mPacket can happen asynchronously. Ultimately, the task will only turn FPE ON when local station have both exchange response in both directions. Thanks to Voon Weifeng for implementing the core functions for detecting FPE events and send mPacket and phylink related change. Signed-off-by:
Ong Boon Leong <boon.leong.ong@intel.com> Co-developed-by:
Voon Weifeng <weifeng.voon@intel.com> Signed-off-by:
Voon Weifeng <weifeng.voon@intel.com> Co-developed-by:
Tan Tee Min <tee.min.tan@intel.com> Signed-off-by:
Tan Tee Min <tee.min.tan@intel.com> Co-developed-by:
Mohammad Athari Bin Ismail <mohammad.athari.ismail@intel.com> Signed-off-by:
Mohammad Athari Bin Ismail <mohammad.athari.ismail@intel.com> Signed-off-by:
David S. Miller <davem@davemloft.net>
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