igc: Add initial LTR support

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The LTR message on the PCIe inform the requested latency
on which the PCIe must become active to the downstream
PCIe port of the system.
This patch provide recommended LTR parameters by i225
specification.

Signed-off-by: Sasha Neftin <sasha.neftin@intel.com>
Tested-by: Aaron Brown <aaron.f.brown@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>

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Sasha Neftin 2020-06-02 10:50:47 +03:00 • committed by Jeff Kirsher

parent 93ec439abe

commit 707abf0695

5 changed files with 139 additions and 0 deletions

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27

drivers/net/ethernet/intel/igc/igc_defines.h

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100

drivers/net/ethernet/intel/igc/igc_i225.c

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1

drivers/net/ethernet/intel/igc/igc_i225.h

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5

drivers/net/ethernet/intel/igc/igc_mac.c

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6

drivers/net/ethernet/intel/igc/igc_regs.h

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