From 7b6f2240880b42dad2f8d3c750c5bcb9decfe245 Mon Sep 17 00:00:00 2001 From: Dongdong Liu Date: Thu, 10 Sep 2020 19:24:15 +0800 Subject: [PATCH] PCI/LINK: Print IRQ number used by port Print the IRQ used by PCIe Link Bandwidth Notification services port as AER, PME and DPC do. It provides convenience to track PCIe BW notification interrupt counts of certain port from /proc/interrupts. The dmesg log is as below: pcieport 0000:00:00.0: bw_notification: enabled with IRQ 1166 Link: https://lore.kernel.org/r/1599737055-73624-1-git-send-email-liudongdong3@huawei.com Signed-off-by: Dongdong Liu Signed-off-by: Bjorn Helgaas --- drivers/pci/pcie/bw_notification.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/drivers/pci/pcie/bw_notification.c b/drivers/pci/pcie/bw_notification.c index 77e6857..565d23c 100644 --- a/drivers/pci/pcie/bw_notification.c +++ b/drivers/pci/pcie/bw_notification.c @@ -14,6 +14,8 @@ * and warns when links become degraded in operation. */ +#define dev_fmt(fmt) "bw_notification: " fmt + #include "../pci.h" #include "portdrv.h" @@ -97,6 +99,7 @@ static int pcie_bandwidth_notification_probe(struct pcie_device *srv) return ret; pcie_enable_link_bandwidth_notification(srv->port); + pci_info(srv->port, "enabled with IRQ %d\n", srv->irq); return 0; } -- 2.7.4