Re: [PATCH] PCI: Check for PCIe downtraining conditions

From: Sinan Kaya
Date: Thu May 31 2018 - 11:54:25 EST


On 5/31/2018 11:46 AM, Alex G. wrote:
>> https://lkml.org/lkml/2018/3/30/553
> Oh, pcie_get_speed_cap()/pcie_get_width_cap() seems to handle the
> capability. Not seeing one for status and speed name.
>
>> are you working on linux-next?
> v4.17-rc7
>

I think everything you need is in the series. I don't know which linux
tree this landed or if it landed. Probably, it is shipping for 4.18.
Need some help from Bjorn where to locate these.

Fri, 30 Mar 2018 16:04:40 -0500

Bjorn Helgaas (6):
bnx2x: Report PCIe link properties with pcie_print_link_status()
bnxt_en: Report PCIe link properties with pcie_print_link_status()
cxgb4: Report PCIe link properties with pcie_print_link_status()
fm10k: Report PCIe link properties with pcie_print_link_status()
ixgbe: Report PCIe link properties with pcie_print_link_status()
PCI: Remove unused pcie_get_minimum_link()

Tal Gilboa (8):
PCI: Add pcie_get_speed_cap() to find max supported link speed
PCI: Add pcie_get_width_cap() to find max supported link width
PCI: Add pcie_bandwidth_capable() to compute max supported link bandwidth
PCI: Add pcie_bandwidth_available() to compute bandwidth available to device
PCI: Add pcie_print_link_status() to log link speed and whether it's limited


--
Sinan Kaya
Qualcomm Datacenter Technologies, Inc. as an affiliate of Qualcomm Technologies, Inc.
Qualcomm Technologies, Inc. is a member of the Code Aurora Forum, a Linux Foundation Collaborative Project.