intel-device-plugins-for-ku.../cmd/qat_plugin/qat_plugin.go
Graham Whaley f8dbc896a1 devicemanager: qat: use klog for logging and debug
Move the framework, and the qat driver, to use `klog`
for logging and debug.

This has a some noticeable effects:

1) Our default log output gains a bunch of annotation:
From:
    QAT device plugin started in 'dpdk' mode
To:
    I0312 11:51:02.057728    6053 qat_plugin.go:64] QAT device plugin started in 'dpdk' mode

(there is now a command line option to drop those annotations if
necessary).

2) We gain a bunch of command line parameters from klog for controlling log
levels and output. We go from 5 arguments to 17:

---
Usage of ./cmd/qat_plugin/qat_plugin:
  -add_dir_header
        If true, adds the file directory to the header
  -alsologtostderr
        log to standard error as well as files
  -debug
        enable debug output
  -dpdk-driver string
        DPDK Device driver for configuring the QAT device (default "vfio-pci")
  -kernel-vf-drivers string
        Comma separated VF Device Driver of the QuickAssist Devices in the system. Devices supported: DH895xCC,C62x,C3xxx and D15xx (default "dh895xccvf,c6xxvf,c3xxxvf,d15xxvf")
  -log_backtrace_at value
        when logging hits line file:N, emit a stack trace
  -log_dir string
        If non-empty, write log files in this directory
  -log_file string
        If non-empty, use this log file
  -log_file_max_size uint
        Defines the maximum size a log file can grow to. Unit is megabytes. If the value is 0, the maximum file size is unlimited. (default 1800)
  -logtostderr
        log to standard error instead of files (default true)
  -max-num-devices int
        maximum number of QAT devices to be provided to the QuickAssist device plugin (default 32)
  -mode string
        plugin mode which can be either dpdk (default) or kernel (default "dpdk")
  -skip_headers
        If true, avoid header prefixes in the log messages
  -skip_log_headers
        If true, avoid headers when opening log files
  -stderrthreshold value
        logs at or above this threshold go to stderr (default 2)
  -v value
        number for the log level verbosity
  -vmodule value
        comma-separated list of pattern=N settings for file-filtered logging
---

3) Our `-debug` flag is now replaced by the `klog` `-v n` flag.

*NOTE:* This is potentially a minor breaking change. Applying
this debug overlay to any previous (pre-klog edit) images will
cause the container to fail to launch, as it will not recognise
the new `-v` arguments.

We also update the kustomize deployment to move from using
DEBUG env vars to adding a VERBOSITY var that controls both
the log verbosity and now the debug mode enabling.

Signed-off-by: Graham Whaley <graham.whaley@intel.com>
2020-03-19 11:20:48 +00:00

62 lines
2.0 KiB
Go

// Copyright 2017 Intel Corporation. All Rights Reserved.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package main
import (
"flag"
"fmt"
"os"
"github.com/pkg/errors"
"github.com/intel/intel-device-plugins-for-kubernetes/cmd/qat_plugin/dpdkdrv"
"github.com/intel/intel-device-plugins-for-kubernetes/cmd/qat_plugin/kerneldrv"
"github.com/intel/intel-device-plugins-for-kubernetes/pkg/deviceplugin"
"k8s.io/klog"
)
const (
namespace = "qat.intel.com"
)
func main() {
var plugin deviceplugin.Scanner
var err error
mode := flag.String("mode", "dpdk", "plugin mode which can be either dpdk (default) or kernel")
dpdkDriver := flag.String("dpdk-driver", "vfio-pci", "DPDK Device driver for configuring the QAT device")
kernelVfDrivers := flag.String("kernel-vf-drivers", "dh895xccvf,c6xxvf,c3xxxvf,d15xxvf", "Comma separated VF Device Driver of the QuickAssist Devices in the system. Devices supported: DH895xCC,C62x,C3xxx and D15xx")
maxNumDevices := flag.Int("max-num-devices", 32, "maximum number of QAT devices to be provided to the QuickAssist device plugin")
flag.Parse()
switch *mode {
case "dpdk":
plugin, err = dpdkdrv.NewDevicePlugin(*maxNumDevices, *kernelVfDrivers, *dpdkDriver)
case "kernel":
plugin = kerneldrv.NewDevicePlugin()
default:
err = errors.Errorf("Unknown mode: %s", *mode)
}
if err != nil {
fmt.Println(err.Error())
os.Exit(1)
}
klog.V(1).Infof("QAT device plugin started in '%s' mode", *mode)
manager := deviceplugin.NewManager(namespace, plugin)
manager.Run()
}