diff options
| author | Alexandru Gagniuc <mr.nuke.me@gmail.com> | 2019-02-27 14:58:17 -0600 |
|---|---|---|
| committer | Bjorn Helgaas <bhelgaas@google.com> | 2019-03-05 15:04:13 -0600 |
| commit | e8303bb7a75c113388badcc49b2a84b4121c1b3e (patch) | |
| tree | 191bc959359be088dc553e69b45d82c3d4a96ff9 /drivers/pci/pcie/Makefile | |
| parent | f0cfecea8d1e8e0cd5d5053f9452b3a450f49eb5 (diff) | |
PCI/LINK: Report degraded links via link bandwidth notification
A warning is generated when a PCIe device is probed with a degraded link,
but there was no similar mechanism to warn when the link becomes degraded
after probing. The Link Bandwidth Notification provides this mechanism.
Use the Link Bandwidth Management Interrupt to detect bandwidth changes,
and rescan the bandwidth, looking for the weakest point. This is the same
logic used in probe().
Signed-off-by: Alexandru Gagniuc <mr.nuke.me@gmail.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Reviewed-by: Lukas Wunner <lukas@wunner.de>
Diffstat (limited to 'drivers/pci/pcie/Makefile')
| -rw-r--r-- | drivers/pci/pcie/Makefile | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/pci/pcie/Makefile b/drivers/pci/pcie/Makefile index ab514083d5d4..f1d7bc1e5efa 100644 --- a/drivers/pci/pcie/Makefile +++ b/drivers/pci/pcie/Makefile @@ -3,6 +3,7 @@ # Makefile for PCI Express features and port driver pcieportdrv-y := portdrv_core.o portdrv_pci.o err.o +pcieportdrv-y += bw_notification.o obj-$(CONFIG_PCIEPORTBUS) += pcieportdrv.o |