feat(sdl): add gpu filtering with interface (#1938)

Signed-off-by: Artur Troian <troian.ap@gmail.com>

sdl/gpu.go

@@ -9,15 +9,22 @@ import (
 	types "github.com/akash-network/akash-api/go/node/types/v1beta3"
 )
 
+type gpuInterface string
+
 type v2GPUNvidia struct {
-	Model string          `yaml:"model"`
-	RAM   *memoryQuantity `yaml:"ram,omitempty"`
+	Model     string          `yaml:"model"`
+	RAM       *memoryQuantity `yaml:"ram,omitempty"`
+	Interface *gpuInterface   `yaml:"interface,omitempty"`
 }
 
 func (sdl *v2GPUNvidia) String() string {
 	key := sdl.Model
 	if sdl.RAM != nil {
-		key += "/ram/" + sdl.RAM.StringWithSuffix("Gi")
+		key = fmt.Sprintf("%s/ram/%s", key, sdl.RAM.StringWithSuffix("Gi"))
+	}
+
+	if sdl.Interface != nil {
+		key = fmt.Sprintf("%s/interface/%s", key, *sdl.Interface)
 	}
 
 	return key
@@ -109,3 +116,16 @@ func (sdl *v2GPUAttributes) UnmarshalYAML(node *yaml.Node) error {
 
 	return nil
 }
+
+func (sdl *gpuInterface) UnmarshalYAML(node *yaml.Node) error {
+	switch node.Value {
+	case "pcie":
+	case "sxm":
+	default:
+		return fmt.Errorf("sdl: invalid GPU interface %s. expected \"pcie|sxm\"", node.Value)
+	}
+
+	*sdl = gpuInterface(node.Value)
+
+	return nil
+}

sdl/gpu_test.go

@@ -88,6 +88,41 @@ attributes:
 	require.Error(t, err)
 }
 
+func TestV2ResourceGPU_InterfaceInvalid(t *testing.T) {
+	var stream = `
+units: 1
+attributes:
+  vendor:
+    nvidia:
+      - model: a100
+        interface: pciex
+`
+	var p v2ResourceGPU
+
+	err := yaml.Unmarshal([]byte(stream), &p)
+	require.Error(t, err)
+}
+
+func TestV2ResourceGPU_RamWithInterface(t *testing.T) {
+	var stream = `
+units: 1
+attributes:
+  vendor:
+    nvidia:
+      - model: a100
+        ram: 80Gi
+        interface: pcie
+`
+	var p v2ResourceGPU
+
+	err := yaml.Unmarshal([]byte(stream), &p)
+	require.NoError(t, err)
+	require.Equal(t, gpuQuantity(1), p.Units)
+	require.Equal(t, 1, len(p.Attributes))
+	require.Equal(t, "vendor/nvidia/model/a100/ram/80Gi/interface/pcie", p.Attributes[0].Key)
+	require.Equal(t, "true", p.Attributes[0].Value)
+}
+
 func TestV2ResourceGPU_MultipleModels(t *testing.T) {
 	var stream = `
 units: 1