[dpdk-dev] [PATCH] bus/pci: set boot-up log prints to absolute minimum

Jerin Jacob jerinjacobk at gmail.com
Thu Feb 6 15:36:49 CET 2020


On Thu, Feb 6, 2020 at 7:44 PM Thomas Monjalon <thomas at monjalon.net> wrote:
>
> 21/01/2020 09:00, jerinj at marvell.com:
> > From: Jerin Jacob <jerinj at marvell.com>
> >
> > Some machines may have a lot of PCI devices, logs from PCI probe
> > creates a lot of clutter on boot-up, typically one needs
> > to scroll the screen to find other issues in boot-up.
> >
> > This patch changes the loglevel of PCI probes to `debug`
> > to reduce the clutter on default boot-up logs
>
> I think the PCI probe informations are... informational.
> Maybe you are just not interested in info logs.
> If this is the case, I suggest to change the log level at runtime.

I am wondering, what would be the right balance, Following is DPDK
startup output from octeontx2[1]
It creates a lot of clutter in the "default" boot up. Why not enable
below prints using log level at runtime?
I believe it comes as a debug category, i.e information required to
debug if something is not working,
dpdk bind script already lists what is bound to DPDK.

Suggestion to remove clutter?

[1]
EAL: Detected 24 lcore(s)
EAL: Detected 1 NUMA nodes
EAL: Multi-process socket /var/run/dpdk/rte/mp_socket
EAL: Selected IOVA mode 'VA'
EAL: No available hugepages reported in hugepages-2048kB
EAL: Probing VFIO support...
EAL: VFIO support initialized
EAL: PCI device 0002:01:00.1 on NUMA socket 0
EAL:   probe driver: 177d:a0f8 net_octeontx2
EAL: PCI device 0002:01:00.2 on NUMA socket 0
EAL:   probe driver: 177d:a0f8 net_octeontx2
EAL: PCI device 0002:01:00.3 on NUMA socket 0
EAL:   probe driver: 177d:a0f8 net_octeontx2
EAL: PCI device 0002:01:00.4 on NUMA socket 0
EAL:   probe driver: 177d:a0f8 net_octeontx2
EAL: PCI device 0002:01:00.5 on NUMA socket 0
EAL:   probe driver: 177d:a0f8 net_octeontx2
EAL: PCI device 0002:01:00.6 on NUMA socket 0
EAL:   probe driver: 177d:a0f8 net_octeontx2
EAL: PCI device 0002:01:00.7 on NUMA socket 0
EAL:   probe driver: 177d:a0f8 net_octeontx2
EAL: PCI device 0002:01:01.0 on NUMA socket 0
EAL:   probe driver: 177d:a0f8 net_octeontx2
EAL: PCI device 0002:01:01.1 on NUMA socket 0
EAL:   probe driver: 177d:a0f8 net_octeontx2
EAL: PCI device 0002:01:01.2 on NUMA socket 0
EAL:   probe driver: 177d:a0f8 net_octeontx2
EAL: PCI device 0002:01:01.3 on NUMA socket 0
EAL:   probe driver: 177d:a0f8 net_octeontx2
EAL: PCI device 0002:01:01.4 on NUMA socket 0
EAL:   probe driver: 177d:a0f8 net_octeontx2
EAL: PCI device 0002:01:01.5 on NUMA socket 0
EAL:   probe driver: 177d:a0f8 net_octeontx2
EAL: PCI device 0002:01:01.6 on NUMA socket 0
EAL:   probe driver: 177d:a0f8 net_octeontx2
EAL: PCI device 0002:01:01.7 on NUMA socket 0
EAL:   probe driver: 177d:a0f8 net_octeontx2
EAL: PCI device 0002:01:02.0 on NUMA socket 0
EAL:   probe driver: 177d:a0f8 net_octeontx2
EAL: PCI device 0002:02:00.0 on NUMA socket 0
EAL:   probe driver: 177d:a063 net_octeontx2
EAL:   using IOMMU type 1 (Type 1)
EAL: PCI device 0002:03:00.0 on NUMA socket 0
EAL:   probe driver: 177d:a063 net_octeontx2
EAL: PCI device 0002:04:00.0 on NUMA socket 0
EAL:   probe driver: 177d:a063 net_octeontx2
EAL: PCI device 0002:05:00.0 on NUMA socket 0
EAL:   probe driver: 177d:a063 net_octeontx2
EAL: PCI device 0002:06:00.0 on NUMA socket 0
EAL:   probe driver: 177d:a063 net_octeontx2
EAL: PCI device 0002:07:00.0 on NUMA socket 0
EAL:   probe driver: 177d:a063 net_octeontx2
EAL: PCI device 0002:08:00.0 on NUMA socket 0
EAL:   probe driver: 177d:a0f9 event_octeontx2
EAL: PCI device 0002:09:00.0 on NUMA socket 0
EAL:   probe driver: 177d:a0f9 event_octeontx2
EAL: PCI device 0002:0a:00.0 on NUMA socket 0
EAL:   probe driver: 177d:a0f9 event_octeontx2
EAL: PCI device 0002:0b:00.0 on NUMA socket 0
EAL:   probe driver: 177d:a0f9 event_octeontx2
EAL: PCI device 0002:0c:00.0 on NUMA socket 0
EAL:   probe driver: 177d:a0fb mempool_octeontx2
EAL: PCI device 0002:0d:00.0 on NUMA socket 0
EAL:   probe driver: 177d:a0fb mempool_octeontx2
EAL: PCI device 0002:0e:00.0 on NUMA socket 0
EAL:   probe driver: 177d:a0f9 event_octeontx2
EAL: PCI device 0002:0f:00.0 on NUMA socket 0
EAL:   probe driver: 177d:a0fb mempool_octeontx2
APP: HPET is not enabled, using TSC as default timer


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