Update vendoring for nvpci

Signed-off-by: Evan Lezar <elezar@nvidia.com>

vendor/gitlab.com/nvidia/cloud-native/go-nvlib/pkg/nvpci/bytes/bytes.go

@@ -0,0 +1,94 @@
+/*
+ * Copyright (c) 2021, NVIDIA 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 bytes
+
+import (
+	"encoding/binary"
+	"unsafe"
+)
+
+// Raw returns just the bytes without any assumptions about layout
+type Raw interface {
+	Raw() *[]byte
+}
+
+// Reader used to read various data sizes in the byte array
+type Reader interface {
+	Read8(pos int) uint8
+	Read16(pos int) uint16
+	Read32(pos int) uint32
+	Read64(pos int) uint64
+	Len() int
+}
+
+// Writer used to write various sizes of data in the byte array
+type Writer interface {
+	Write8(pos int, value uint8)
+	Write16(pos int, value uint16)
+	Write32(pos int, value uint32)
+	Write64(pos int, value uint64)
+	Len() int
+}
+
+// Bytes object for manipulating arbitrary byte arrays
+type Bytes interface {
+	Raw
+	Reader
+	Writer
+	Slice(offset int, size int) Bytes
+	LittleEndian() Bytes
+	BigEndian() Bytes
+}
+
+var nativeByteOrder binary.ByteOrder
+
+func init() {
+	buf := [2]byte{}
+	*(*uint16)(unsafe.Pointer(&buf[0])) = uint16(0x00FF)
+
+	switch buf {
+	case [2]byte{0xFF, 0x00}:
+		nativeByteOrder = binary.LittleEndian
+	case [2]byte{0x00, 0xFF}:
+		nativeByteOrder = binary.BigEndian
+	default:
+		panic("Unable to infer byte order")
+	}
+}
+
+// New raw bytearray
+func New(data *[]byte) Bytes {
+	return (*native)(data)
+}
+
+// NewLittleEndian little endian ordering of bytes
+func NewLittleEndian(data *[]byte) Bytes {
+	if nativeByteOrder == binary.LittleEndian {
+		return (*native)(data)
+	}
+
+	return (*swapbo)(data)
+}
+
+// NewBigEndian big endian ordering of bytes
+func NewBigEndian(data *[]byte) Bytes {
+	if nativeByteOrder == binary.BigEndian {
+		return (*native)(data)
+	}
+
+	return (*swapbo)(data)
+}

vendor/gitlab.com/nvidia/cloud-native/go-nvlib/pkg/nvpci/bytes/native.go

@@ -0,0 +1,78 @@
+/*
+ * Copyright (c) 2021, NVIDIA 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 bytes
+
+import (
+	"unsafe"
+)
+
+type native []byte
+
+var _ Bytes = (*native)(nil)
+
+func (b *native) Read8(pos int) uint8 {
+	return (*b)[pos]
+}
+
+func (b *native) Read16(pos int) uint16 {
+	return *(*uint16)(unsafe.Pointer(&((*b)[pos])))
+}
+
+func (b *native) Read32(pos int) uint32 {
+	return *(*uint32)(unsafe.Pointer(&((*b)[pos])))
+}
+
+func (b *native) Read64(pos int) uint64 {
+	return *(*uint64)(unsafe.Pointer(&((*b)[pos])))
+}
+
+func (b *native) Write8(pos int, value uint8) {
+	(*b)[pos] = value
+}
+
+func (b *native) Write16(pos int, value uint16) {
+	*(*uint16)(unsafe.Pointer(&((*b)[pos]))) = value
+}
+
+func (b *native) Write32(pos int, value uint32) {
+	*(*uint32)(unsafe.Pointer(&((*b)[pos]))) = value
+}
+
+func (b *native) Write64(pos int, value uint64) {
+	*(*uint64)(unsafe.Pointer(&((*b)[pos]))) = value
+}
+
+func (b *native) Slice(offset int, size int) Bytes {
+	nb := (*b)[offset : offset+size]
+	return &nb
+}
+
+func (b *native) LittleEndian() Bytes {
+	return NewLittleEndian((*[]byte)(b))
+}
+
+func (b *native) BigEndian() Bytes {
+	return NewBigEndian((*[]byte)(b))
+}
+
+func (b *native) Raw() *[]byte {
+	return (*[]byte)(b)
+}
+
+func (b *native) Len() int {
+	return len(*b)
+}

vendor/gitlab.com/nvidia/cloud-native/go-nvlib/pkg/nvpci/bytes/swapbo.go

@@ -0,0 +1,112 @@
+/*
+ * Copyright (c) 2021, NVIDIA 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 bytes
+
+import (
+	"unsafe"
+)
+
+type swapbo []byte
+
+var _ Bytes = (*swapbo)(nil)
+
+func (b *swapbo) Read8(pos int) uint8 {
+	return (*b)[pos]
+}
+
+func (b *swapbo) Read16(pos int) uint16 {
+	buf := [2]byte{}
+	buf[0] = (*b)[pos+1]
+	buf[1] = (*b)[pos+0]
+	return *(*uint16)(unsafe.Pointer(&buf[0]))
+}
+
+func (b *swapbo) Read32(pos int) uint32 {
+	buf := [4]byte{}
+	buf[0] = (*b)[pos+3]
+	buf[1] = (*b)[pos+2]
+	buf[2] = (*b)[pos+1]
+	buf[3] = (*b)[pos+0]
+	return *(*uint32)(unsafe.Pointer(&buf[0]))
+}
+
+func (b *swapbo) Read64(pos int) uint64 {
+	buf := [8]byte{}
+	buf[0] = (*b)[pos+7]
+	buf[1] = (*b)[pos+6]
+	buf[2] = (*b)[pos+5]
+	buf[3] = (*b)[pos+4]
+	buf[4] = (*b)[pos+3]
+	buf[5] = (*b)[pos+2]
+	buf[6] = (*b)[pos+1]
+	buf[7] = (*b)[pos+0]
+	return *(*uint64)(unsafe.Pointer(&buf[0]))
+}
+
+func (b *swapbo) Write8(pos int, value uint8) {
+	(*b)[pos] = value
+}
+
+func (b *swapbo) Write16(pos int, value uint16) {
+	buf := [2]byte{}
+	*(*uint16)(unsafe.Pointer(&buf[0])) = value
+	(*b)[pos+0] = buf[1]
+	(*b)[pos+1] = buf[0]
+}
+
+func (b *swapbo) Write32(pos int, value uint32) {
+	buf := [4]byte{}
+	*(*uint32)(unsafe.Pointer(&buf[0])) = value
+	(*b)[pos+0] = buf[3]
+	(*b)[pos+1] = buf[2]
+	(*b)[pos+2] = buf[1]
+	(*b)[pos+3] = buf[0]
+}
+
+func (b *swapbo) Write64(pos int, value uint64) {
+	buf := [8]byte{}
+	*(*uint64)(unsafe.Pointer(&buf[0])) = value
+	(*b)[pos+0] = buf[7]
+	(*b)[pos+1] = buf[6]
+	(*b)[pos+2] = buf[5]
+	(*b)[pos+3] = buf[4]
+	(*b)[pos+4] = buf[3]
+	(*b)[pos+5] = buf[2]
+	(*b)[pos+6] = buf[1]
+	(*b)[pos+7] = buf[0]
+}
+
+func (b *swapbo) Slice(offset int, size int) Bytes {
+	nb := (*b)[offset : offset+size]
+	return &nb
+}
+
+func (b *swapbo) LittleEndian() Bytes {
+	return NewLittleEndian((*[]byte)(b))
+}
+
+func (b *swapbo) BigEndian() Bytes {
+	return NewBigEndian((*[]byte)(b))
+}
+
+func (b *swapbo) Raw() *[]byte {
+	return (*[]byte)(b)
+}
+
+func (b *swapbo) Len() int {
+	return len(*b)
+}