executor: move fixed pci devlink handle into network namespace

In case there is a fixed pci devlink handle "pci/pci/0000:00:10.0"
on the system (initial network namespace), it is moved to a working
network namespace.

Signed-off-by: Jiri Pirko <jiri@mellanox.com>

2 files changed, 10 insertions, 0 deletions

diff --git a/pkg/host/host.go b/pkg/host/host.go
index dbd3b9ec3..f18233085 100644
--- a/pkg/host/host.go
+++ b/pkg/host/host.go
@@ -76,6 +76,7 @@ const (
 	FeatureNetworkInjection
 	FeatureNetworkDevices
 	FeatureKCSAN
+	FeatureDevlinkPCI
 	numFeatures
 )
 
@@ -108,6 +109,7 @@ func Check(target *prog.Target) (*Features, error) {
 		FeatureNetworkInjection:           {Name: "net packet injection", Reason: unsupported},
 		FeatureNetworkDevices:             {Name: "net device setup", Reason: unsupported},
 		FeatureKCSAN:                      {Name: "concurrency sanitizer", Reason: unsupported},
+		FeatureDevlinkPCI:                 {Name: "devlink PCI setup", Reason: unsupported},
 	}
 	switch target.OS {
 	case "akaros", "fuchsia", "test":
diff --git a/pkg/host/host_linux.go b/pkg/host/host_linux.go
index a1d5ff1b3..c908ee411 100644
--- a/pkg/host/host_linux.go
+++ b/pkg/host/host_linux.go
@@ -396,6 +396,7 @@ func init() {
 	checkFeature[FeatureNetworkInjection] = checkNetworkInjection
 	checkFeature[FeatureNetworkDevices] = unconditionallyEnabled
 	checkFeature[FeatureKCSAN] = checkKCSAN
+	checkFeature[FeatureDevlinkPCI] = checkDevlinkPCI
 }
 
 func checkCoverage() string {
@@ -564,3 +565,10 @@ func checkKCSAN() string {
 	}
 	return ""
 }
+
+func checkDevlinkPCI() string {
+	if err := osutil.IsAccessible("/sys/bus/pci/devices/0000:00:10.0/"); err != nil {
+		return "PCI device 0000:00:10.0 is not available"
+	}
+	return ""
+}