[VOL-5486] Fix deprecated versions
Change-Id: Ic398322948171d8a1c5b4e866602805ec0ea396f
Signed-off-by: Abhay Kumar <abhay.kumar@radisys.com>
diff --git a/vendor/github.com/prometheus/procfs/net_softnet.go b/vendor/github.com/prometheus/procfs/net_softnet.go
new file mode 100644
index 0000000..71c8059
--- /dev/null
+++ b/vendor/github.com/prometheus/procfs/net_softnet.go
@@ -0,0 +1,155 @@
+// Copyright 2019 The Prometheus Authors
+// 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 procfs
+
+import (
+ "bufio"
+ "bytes"
+ "fmt"
+ "io"
+ "strconv"
+ "strings"
+
+ "github.com/prometheus/procfs/internal/util"
+)
+
+// For the proc file format details,
+// See:
+// * Linux 2.6.23 https://elixir.bootlin.com/linux/v2.6.23/source/net/core/dev.c#L2343
+// * Linux 2.6.39 https://elixir.bootlin.com/linux/v2.6.39/source/net/core/dev.c#L4086
+// * Linux 4.18 https://elixir.bootlin.com/linux/v4.18/source/net/core/net-procfs.c#L162
+// * Linux 5.14 https://elixir.bootlin.com/linux/v5.14/source/net/core/net-procfs.c#L169
+
+// SoftnetStat contains a single row of data from /proc/net/softnet_stat.
+type SoftnetStat struct {
+ // Number of processed packets.
+ Processed uint32
+ // Number of dropped packets.
+ Dropped uint32
+ // Number of times processing packets ran out of quota.
+ TimeSqueezed uint32
+ // Number of collision occur while obtaining device lock while transmitting.
+ CPUCollision uint32
+ // Number of times cpu woken up received_rps.
+ ReceivedRps uint32
+ // number of times flow limit has been reached.
+ FlowLimitCount uint32
+ // Softnet backlog status.
+ SoftnetBacklogLen uint32
+ // CPU id owning this softnet_data.
+ Index uint32
+ // softnet_data's Width.
+ Width int
+}
+
+var softNetProcFile = "net/softnet_stat"
+
+// NetSoftnetStat reads data from /proc/net/softnet_stat.
+func (fs FS) NetSoftnetStat() ([]SoftnetStat, error) {
+ b, err := util.ReadFileNoStat(fs.proc.Path(softNetProcFile))
+ if err != nil {
+ return nil, err
+ }
+
+ entries, err := parseSoftnet(bytes.NewReader(b))
+ if err != nil {
+ return nil, fmt.Errorf("%w: /proc/net/softnet_stat: %w", ErrFileParse, err)
+ }
+
+ return entries, nil
+}
+
+func parseSoftnet(r io.Reader) ([]SoftnetStat, error) {
+ const minColumns = 9
+
+ s := bufio.NewScanner(r)
+
+ var stats []SoftnetStat
+ cpuIndex := 0
+ for s.Scan() {
+ columns := strings.Fields(s.Text())
+ width := len(columns)
+ softnetStat := SoftnetStat{}
+
+ if width < minColumns {
+ return nil, fmt.Errorf("%w: detected %d columns, but expected at least %d", ErrFileParse, width, minColumns)
+ }
+
+ // Linux 2.6.23 https://elixir.bootlin.com/linux/v2.6.23/source/net/core/dev.c#L2347
+ if width >= minColumns {
+ us, err := parseHexUint32s(columns[0:9])
+ if err != nil {
+ return nil, err
+ }
+
+ softnetStat.Processed = us[0]
+ softnetStat.Dropped = us[1]
+ softnetStat.TimeSqueezed = us[2]
+ softnetStat.CPUCollision = us[8]
+ }
+
+ // Linux 2.6.39 https://elixir.bootlin.com/linux/v2.6.39/source/net/core/dev.c#L4086
+ if width >= 10 {
+ us, err := parseHexUint32s(columns[9:10])
+ if err != nil {
+ return nil, err
+ }
+
+ softnetStat.ReceivedRps = us[0]
+ }
+
+ // Linux 4.18 https://elixir.bootlin.com/linux/v4.18/source/net/core/net-procfs.c#L162
+ if width >= 11 {
+ us, err := parseHexUint32s(columns[10:11])
+ if err != nil {
+ return nil, err
+ }
+
+ softnetStat.FlowLimitCount = us[0]
+ }
+
+ // Linux 5.14 https://elixir.bootlin.com/linux/v5.14/source/net/core/net-procfs.c#L169
+ if width >= 13 {
+ us, err := parseHexUint32s(columns[11:13])
+ if err != nil {
+ return nil, err
+ }
+
+ softnetStat.SoftnetBacklogLen = us[0]
+ softnetStat.Index = us[1]
+ } else {
+ // For older kernels, create the Index based on the scan line number.
+ softnetStat.Index = uint32(cpuIndex)
+ }
+ softnetStat.Width = width
+ stats = append(stats, softnetStat)
+ cpuIndex++
+ }
+
+ return stats, nil
+}
+
+func parseHexUint32s(ss []string) ([]uint32, error) {
+ us := make([]uint32, 0, len(ss))
+ for _, s := range ss {
+ u, err := strconv.ParseUint(s, 16, 32)
+ if err != nil {
+ return nil, err
+ }
+
+ us = append(us, uint32(u))
+ }
+
+ return us, nil
+}