void mptsas_fix_config_endianness(MPIMsgConfig *req)
{
le16_to_cpus(&req->ExtPageLength);
le32_to_cpus(&req->MsgContext);
le32_to_cpus(&req->PageAddress);
mptsas_fix_sgentry_endianness(&req->PageBufferSGE);
}
void mptsas_fix_scsi_io_endianness(MPIMsgSCSIIORequest *req)
{
le32_to_cpus(&req->MsgContext);
le32_to_cpus(&req->Control);
le32_to_cpus(&req->DataLength);
le32_to_cpus(&req->SenseBufferLowAddr);
}
void wil_mbox_ring_le2cpus(struct wil6210_mbox_ring *r)
{
le32_to_cpus(&r->base);
le16_to_cpus(&r->entry_size);
le16_to_cpus(&r->size);
le32_to_cpus(&r->tail);
le32_to_cpus(&r->head);
}
static void mptsas_fix_sgentry_endianness(MPISGEntry *sge)
{
le32_to_cpus(&sge->FlagsLength);
if (sge->FlagsLength & MPI_SGE_FLAGS_64_BIT_ADDRESSING) {
le64_to_cpus(&sge->u.Address64);
} else {
le32_to_cpus(&sge->u.Address32);
}
}
void mptsas_fix_ioc_init_endianness(MPIMsgIOCInit *req)
{
le32_to_cpus(&req->MsgContext);
le16_to_cpus(&req->ReplyFrameSize);
le32_to_cpus(&req->HostMfaHighAddr);
le32_to_cpus(&req->SenseBufferHighAddr);
le32_to_cpus(&req->ReplyFifoHostSignalingAddr);
mptsas_fix_sgentry_endianness(&req->HostPageBufferSGE);
le16_to_cpus(&req->MsgVersion);
le16_to_cpus(&req->HeaderVersion);
}
static int parallels_open(BlockDriverState *bs, int flags)
{
BDRVParallelsState *s = bs->opaque;
int i;
struct parallels_header ph;
bs->read_only = 1; // no write support yet
if (bdrv_pread(bs->file, 0, &ph, sizeof(ph)) != sizeof(ph))
goto fail;
if (memcmp(ph.magic, HEADER_MAGIC, 16) ||
(le32_to_cpu(ph.version) != HEADER_VERSION)) {
goto fail;
}
bs->total_sectors = le32_to_cpu(ph.nb_sectors);
s->tracks = le32_to_cpu(ph.tracks);
s->catalog_size = le32_to_cpu(ph.catalog_entries);
s->catalog_bitmap = g_malloc(s->catalog_size * 4);
if (bdrv_pread(bs->file, 64, s->catalog_bitmap, s->catalog_size * 4) !=
s->catalog_size * 4)
goto fail;
for (i = 0; i < s->catalog_size; i++)
le32_to_cpus(&s->catalog_bitmap[i]);
return 0;
fail:
if (s->catalog_bitmap)
g_free(s->catalog_bitmap);
return -1;
}
static u32 *
cna_read_firmware(struct pci_dev *pdev, u32 **bfi_image,
u32 *bfi_image_size, char *fw_name)
{
const struct firmware *fw;
u32 n;
if (request_firmware(&fw, fw_name, &pdev->dev)) {
dev_alert(&pdev->dev, "can't load firmware %s\n", fw_name);
goto error;
}
*bfi_image = (u32 *)fw->data;
*bfi_image_size = fw->size/sizeof(u32);
bfi_fw = fw;
/* Convert loaded firmware to host order as it is stored in file
* as sequence of LE32 integers.
*/
for (n = 0; n < *bfi_image_size; n++)
le32_to_cpus(*bfi_image + n);
return *bfi_image;
error:
return NULL;
}
/* All VHDX structures on disk are little endian */
static void vhdx_header_le_import(VHDXHeader *h)
{
assert(h != NULL);
le32_to_cpus(&h->signature);
le32_to_cpus(&h->checksum);
le64_to_cpus(&h->sequence_number);
leguid_to_cpus(&h->file_write_guid);
leguid_to_cpus(&h->data_write_guid);
leguid_to_cpus(&h->log_guid);
le16_to_cpus(&h->log_version);
le16_to_cpus(&h->version);
le32_to_cpus(&h->log_length);
le64_to_cpus(&h->log_offset);
}
static int parallels_open(BlockDriverState *bs, QDict *options, int flags,
Error **errp)
{
BDRVParallelsState *s = bs->opaque;
int i;
struct parallels_header ph;
int ret;
bs->read_only = 1; // no write support yet
ret = bdrv_pread(bs->file, 0, &ph, sizeof(ph));
if (ret < 0) {
goto fail;
}
if (memcmp(ph.magic, HEADER_MAGIC, 16) ||
(le32_to_cpu(ph.version) != HEADER_VERSION)) {
error_setg(errp, "Image not in Parallels format");
ret = -EINVAL;
goto fail;
}
bs->total_sectors = le32_to_cpu(ph.nb_sectors);
s->tracks = le32_to_cpu(ph.tracks);
if (s->tracks == 0) {
error_setg(errp, "Invalid image: Zero sectors per track");
ret = -EINVAL;
goto fail;
}
s->catalog_size = le32_to_cpu(ph.catalog_entries);
if (s->catalog_size > INT_MAX / 4) {
error_setg(errp, "Catalog too large");
ret = -EFBIG;
goto fail;
}
s->catalog_bitmap = g_try_malloc(s->catalog_size * 4);
if (s->catalog_size && s->catalog_bitmap == NULL) {
ret = -ENOMEM;
goto fail;
}
ret = bdrv_pread(bs->file, 64, s->catalog_bitmap, s->catalog_size * 4);
if (ret < 0) {
goto fail;
}
for (i = 0; i < s->catalog_size; i++)
le32_to_cpus(&s->catalog_bitmap[i]);
qemu_co_mutex_init(&s->lock);
return 0;
fail:
g_free(s->catalog_bitmap);
return ret;
}
/*
* Helper function to analyze a PIMFOR management frame header.
*/
static pimfor_header_t *
pimfor_decode_header(void *data, int len)
{
pimfor_header_t *h = data;
while ((void *) h < data + len) {
if (h->flags & PIMFOR_FLAG_LITTLE_ENDIAN) {
le32_to_cpus(&h->oid);
le32_to_cpus(&h->length);
} else {
be32_to_cpus(&h->oid);
be32_to_cpus(&h->length);
}
if (h->oid != OID_INL_TUNNEL)
return h;
h++;
}
return NULL;
}
static int vmdk_init_tables(BlockDriverState *bs, VmdkExtent *extent)
{
int ret;
int l1_size, i;
/* read the L1 table */
l1_size = extent->l1_size * sizeof(uint32_t);
extent->l1_table = g_malloc(l1_size);
ret = bdrv_pread(extent->file,
extent->l1_table_offset,
extent->l1_table,
l1_size);
if (ret < 0) {
goto fail_l1;
}
for (i = 0; i < extent->l1_size; i++) {
le32_to_cpus(&extent->l1_table[i]);
}
if (extent->l1_backup_table_offset) {
extent->l1_backup_table = g_malloc(l1_size);
ret = bdrv_pread(extent->file,
extent->l1_backup_table_offset,
extent->l1_backup_table,
l1_size);
if (ret < 0) {
goto fail_l1b;
}
for (i = 0; i < extent->l1_size; i++) {
le32_to_cpus(&extent->l1_backup_table[i]);
}
}
extent->l2_cache =
g_malloc(extent->l2_size * L2_CACHE_SIZE * sizeof(uint32_t));
return 0;
fail_l1b:
g_free(extent->l1_backup_table);
fail_l1:
g_free(extent->l1_table);
return ret;
}
/**
* Read register
*
* @v smsc95xx SMSC95xx device
* @v address Register address
* @ret value Register value
* @ret rc Return status code
*/
static inline __attribute__ (( always_inline )) int
smsc95xx_readl ( struct smsc95xx_device *smsc95xx, unsigned int address,
uint32_t *value ) {
int rc;
/* Read register */
if ( ( rc = smsc95xx_raw_readl ( smsc95xx, address, value ) ) != 0 )
return rc;
le32_to_cpus ( value );
return 0;
}
static int smsc95xx_rx_fixup(struct usbnet *dev, void *buf, int len)
{
while (len > 0) {
u32 header, align_count;
unsigned char *packet;
u16 size;
memcpy(&header, buf, sizeof(header));
le32_to_cpus(&header);
buf += 4 + NET_IP_ALIGN;
len -= 4 + NET_IP_ALIGN;
packet = buf;
/* get the packet length */
size = (u16)((header & RX_STS_FL_) >> 16);
align_count = (4 - ((size + NET_IP_ALIGN) % 4)) % 4;
if (header & RX_STS_ES_) {
netif_dbg(dev, rx_err, dev->net,
"Error header=0x%08x\n", header);
} else {
/* ETH_FRAME_LEN + 4(CRC) + 2(COE) + 4(Vlan) */
if (size > (ETH_FRAME_LEN + 12)) {
netif_dbg(dev, rx_err, dev->net,
"size err header=0x%08x\n", header);
return 0;
}
/* last frame in this batch */
if (len == size) {
net_receive(&dev->edev, buf, len - 4);
return 1;
}
net_receive(&dev->edev, packet, len - 4);
}
len -= size;
/* padding bytes before the next frame starts */
if (len)
len -= align_count;
}
if (len < 0) {
netdev_warn(dev->net, "invalid rx length<0 %d\n", len);
return 0;
}
return 1;
}
static int parallels_open(BlockDriverState *bs, const char *filename, int flags)
{
BDRVParallelsState *s = (BDRVParallelsState *)bs->opaque;
int fd, i;
struct parallels_header ph;
fd = open(filename, O_RDWR | O_BINARY | O_LARGEFILE);
if (fd < 0) {
fd = open(filename, O_RDONLY | O_BINARY | O_LARGEFILE);
if (fd < 0)
return -1;
}
bs->read_only = 1; // no write support yet
s->fd = fd;
if (read(fd, &ph, sizeof(ph)) != sizeof(ph))
goto fail;
if (memcmp(ph.magic, HEADER_MAGIC, 16) ||
(le32_to_cpu(ph.version) != HEADER_VERSION)) {
goto fail;
}
bs->total_sectors = le32_to_cpu(ph.nb_sectors);
if (lseek(s->fd, 64, SEEK_SET) != 64)
goto fail;
s->tracks = le32_to_cpu(ph.tracks);
s->catalog_size = le32_to_cpu(ph.catalog_entries);
s->catalog_bitmap = (uint32_t *)qemu_malloc(s->catalog_size * 4);
if (!s->catalog_bitmap)
goto fail;
if (read(s->fd, s->catalog_bitmap, s->catalog_size * 4) !=
s->catalog_size * 4)
goto fail;
for (i = 0; i < s->catalog_size; i++)
le32_to_cpus(&s->catalog_bitmap[i]);
return 0;
fail:
if (s->catalog_bitmap)
qemu_free(s->catalog_bitmap);
close(fd);
return -1;
}
static int smsc95xx_read_reg(struct usbnet *dev, u32 index, u32 *data)
{
int ret;
ret = usb_control_msg(dev->udev, usb_rcvctrlpipe(dev->udev, 0),
USB_VENDOR_REQUEST_READ_REGISTER,
USB_DIR_IN | USB_TYPE_VENDOR | USB_RECIP_DEVICE,
00, index, data, 4, USB_CTRL_GET_TIMEOUT);
if (ret < 0)
netdev_warn(dev->net, "Failed to read register index 0x%08x\n", index);
le32_to_cpus(data);
debug("%s: 0x%08x 0x%08x\n", __func__, index, *data);
return ret;
}
static int parallels_open(BlockDriverState *bs, QDict *options, int flags,
Error **errp)
{
BDRVParallelsState *s = bs->opaque;
int i;
struct parallels_header ph;
int ret;
bs->read_only = 1; // no write support yet
ret = bdrv_pread(bs->file, 0, &ph, sizeof(ph));
if (ret < 0) {
goto fail;
}
if (memcmp(ph.magic, HEADER_MAGIC, 16) ||
(le32_to_cpu(ph.version) != HEADER_VERSION)) {
ret = -EMEDIUMTYPE;
goto fail;
}
bs->total_sectors = le32_to_cpu(ph.nb_sectors);
s->tracks = le32_to_cpu(ph.tracks);
s->catalog_size = le32_to_cpu(ph.catalog_entries);
s->catalog_bitmap = g_malloc(s->catalog_size * 4);
ret = bdrv_pread(bs->file, 64, s->catalog_bitmap, s->catalog_size * 4);
if (ret < 0) {
goto fail;
}
for (i = 0; i < s->catalog_size; i++)
le32_to_cpus(&s->catalog_bitmap[i]);
qemu_co_mutex_init(&s->lock);
return 0;
fail:
g_free(s->catalog_bitmap);
return ret;
}
/*
* This function will validate Map info data provided by FW
*/
u8 MR_ValidateMapInfo(struct megasas_instance *instance)
{
struct fusion_context *fusion = instance->ctrl_context;
struct MR_FW_RAID_MAP_ALL *map = fusion->ld_map[(instance->map_id & 1)];
struct LD_LOAD_BALANCE_INFO *lbInfo = fusion->load_balance_info;
PLD_SPAN_INFO ldSpanInfo = fusion->log_to_span;
struct MR_FW_RAID_MAP *pFwRaidMap = &map->raidMap;
struct MR_LD_RAID *raid;
int ldCount, num_lds;
u16 ld;
if (le32_to_cpu(pFwRaidMap->totalSize) !=
(sizeof(struct MR_FW_RAID_MAP) -sizeof(struct MR_LD_SPAN_MAP) +
(sizeof(struct MR_LD_SPAN_MAP) * le32_to_cpu(pFwRaidMap->ldCount)))) {
printk(KERN_ERR "megasas: map info structure size 0x%x is not matching with ld count\n",
(unsigned int)((sizeof(struct MR_FW_RAID_MAP) -
sizeof(struct MR_LD_SPAN_MAP)) +
(sizeof(struct MR_LD_SPAN_MAP) *
le32_to_cpu(pFwRaidMap->ldCount))));
printk(KERN_ERR "megasas: span map %x, pFwRaidMap->totalSize "
": %x\n", (unsigned int)sizeof(struct MR_LD_SPAN_MAP),
le32_to_cpu(pFwRaidMap->totalSize));
return 0;
}
if (instance->UnevenSpanSupport)
mr_update_span_set(map, ldSpanInfo);
mr_update_load_balance_params(map, lbInfo);
num_lds = le32_to_cpu(map->raidMap.ldCount);
/*Convert Raid capability values to CPU arch */
for (ldCount = 0; ldCount < num_lds; ldCount++) {
ld = MR_TargetIdToLdGet(ldCount, map);
raid = MR_LdRaidGet(ld, map);
le32_to_cpus((u32 *)&raid->capability);
}
return 1;
}
static int ax88179_read_cmd_nopm(struct usbnet *dev, u8 cmd, u16 value,
u16 index, u16 size, void *data, int eflag)
{
int ret;
if (eflag && (2 == size)) {
u16 buf;
ret = __ax88179_read_cmd(dev, cmd, value, index, size, &buf, 1);
le16_to_cpus(&buf);
*((u16 *)data) = buf;
} else if (eflag && (4 == size)) {
u32 buf;
ret = __ax88179_read_cmd(dev, cmd, value, index, size, &buf, 1);
le32_to_cpus(&buf);
*((u32 *)data) = buf;
} else {
ret = __ax88179_read_cmd(dev, cmd, value, index, size, data, 1);
}
return ret;
}
static void v9fs_uint32_read(P9Req *req, uint32_t *val)
{
v9fs_memread(req, val, 4);
le32_to_cpus(val);
}
/* Metadata initial parser
*
* This loads all the metadata entry fields. This may cause additional
* fields to be processed (e.g. parent locator, etc..).
*
* There are 5 Metadata items that are always required:
* - File Parameters (block size, has a parent)
* - Virtual Disk Size (size, in bytes, of the virtual drive)
* - Page 83 Data (scsi page 83 guid)
* - Logical Sector Size (logical sector size in bytes, either 512 or
* 4096. We only support 512 currently)
* - Physical Sector Size (512 or 4096)
*
* Also, if the File Parameters indicate this is a differencing file,
* we must also look for the Parent Locator metadata item.
*/
static int vhdx_parse_metadata(BlockDriverState *bs, BDRVVHDXState *s)
{
int ret = 0;
uint8_t *buffer;
int offset = 0;
uint32_t i = 0;
VHDXMetadataTableEntry md_entry;
buffer = qemu_blockalign(bs, VHDX_METADATA_TABLE_MAX_SIZE);
ret = bdrv_pread(bs->file, s->metadata_rt.file_offset, buffer,
VHDX_METADATA_TABLE_MAX_SIZE);
if (ret < 0) {
goto exit;
}
memcpy(&s->metadata_hdr, buffer, sizeof(s->metadata_hdr));
offset += sizeof(s->metadata_hdr);
le64_to_cpus(&s->metadata_hdr.signature);
le16_to_cpus(&s->metadata_hdr.reserved);
le16_to_cpus(&s->metadata_hdr.entry_count);
if (memcmp(&s->metadata_hdr.signature, "metadata", 8)) {
ret = -EINVAL;
goto exit;
}
s->metadata_entries.present = 0;
if ((s->metadata_hdr.entry_count * sizeof(md_entry)) >
(VHDX_METADATA_TABLE_MAX_SIZE - offset)) {
ret = -EINVAL;
goto exit;
}
for (i = 0; i < s->metadata_hdr.entry_count; i++) {
memcpy(&md_entry, buffer + offset, sizeof(md_entry));
offset += sizeof(md_entry);
leguid_to_cpus(&md_entry.item_id);
le32_to_cpus(&md_entry.offset);
le32_to_cpus(&md_entry.length);
le32_to_cpus(&md_entry.data_bits);
le32_to_cpus(&md_entry.reserved2);
if (guid_eq(md_entry.item_id, file_param_guid)) {
if (s->metadata_entries.present & META_FILE_PARAMETER_PRESENT) {
ret = -EINVAL;
goto exit;
}
s->metadata_entries.file_parameters_entry = md_entry;
s->metadata_entries.present |= META_FILE_PARAMETER_PRESENT;
continue;
}
if (guid_eq(md_entry.item_id, virtual_size_guid)) {
if (s->metadata_entries.present & META_VIRTUAL_DISK_SIZE_PRESENT) {
ret = -EINVAL;
goto exit;
}
s->metadata_entries.virtual_disk_size_entry = md_entry;
s->metadata_entries.present |= META_VIRTUAL_DISK_SIZE_PRESENT;
continue;
}
if (guid_eq(md_entry.item_id, page83_guid)) {
if (s->metadata_entries.present & META_PAGE_83_PRESENT) {
ret = -EINVAL;
goto exit;
}
s->metadata_entries.page83_data_entry = md_entry;
s->metadata_entries.present |= META_PAGE_83_PRESENT;
continue;
}
if (guid_eq(md_entry.item_id, logical_sector_guid)) {
if (s->metadata_entries.present &
META_LOGICAL_SECTOR_SIZE_PRESENT) {
ret = -EINVAL;
goto exit;
}
s->metadata_entries.logical_sector_size_entry = md_entry;
s->metadata_entries.present |= META_LOGICAL_SECTOR_SIZE_PRESENT;
continue;
}
if (guid_eq(md_entry.item_id, phys_sector_guid)) {
if (s->metadata_entries.present & META_PHYS_SECTOR_SIZE_PRESENT) {
ret = -EINVAL;
goto exit;
}
s->metadata_entries.phys_sector_size_entry = md_entry;
s->metadata_entries.present |= META_PHYS_SECTOR_SIZE_PRESENT;
continue;
}
if (guid_eq(md_entry.item_id, parent_locator_guid)) {
if (s->metadata_entries.present & META_PARENT_LOCATOR_PRESENT) {
ret = -EINVAL;
goto exit;
}
s->metadata_entries.parent_locator_entry = md_entry;
s->metadata_entries.present |= META_PARENT_LOCATOR_PRESENT;
continue;
}
if (md_entry.data_bits & VHDX_META_FLAGS_IS_REQUIRED) {
/* cannot read vhdx file - required region table entry that
* we do not understand. per spec, we must fail to open */
ret = -ENOTSUP;
goto exit;
}
}
if (s->metadata_entries.present != META_ALL_PRESENT) {
ret = -ENOTSUP;
goto exit;
}
ret = bdrv_pread(bs->file,
s->metadata_entries.file_parameters_entry.offset
+ s->metadata_rt.file_offset,
&s->params,
sizeof(s->params));
if (ret < 0) {
goto exit;
}
le32_to_cpus(&s->params.block_size);
le32_to_cpus(&s->params.data_bits);
/* We now have the file parameters, so we can tell if this is a
* differencing file (i.e.. has_parent), is dynamic or fixed
* sized (leave_blocks_allocated), and the block size */
/* The parent locator required iff the file parameters has_parent set */
if (s->params.data_bits & VHDX_PARAMS_HAS_PARENT) {
if (s->metadata_entries.present & META_PARENT_LOCATOR_PRESENT) {
/* TODO: parse parent locator fields */
ret = -ENOTSUP; /* temp, until differencing files are supported */
goto exit;
} else {
/* if has_parent is set, but there is not parent locator present,
* then that is an invalid combination */
ret = -EINVAL;
goto exit;
}
}
/* determine virtual disk size, logical sector size,
* and phys sector size */
ret = bdrv_pread(bs->file,
s->metadata_entries.virtual_disk_size_entry.offset
+ s->metadata_rt.file_offset,
&s->virtual_disk_size,
sizeof(uint64_t));
if (ret < 0) {
goto exit;
}
ret = bdrv_pread(bs->file,
s->metadata_entries.logical_sector_size_entry.offset
+ s->metadata_rt.file_offset,
&s->logical_sector_size,
sizeof(uint32_t));
if (ret < 0) {
goto exit;
}
ret = bdrv_pread(bs->file,
s->metadata_entries.phys_sector_size_entry.offset
+ s->metadata_rt.file_offset,
&s->physical_sector_size,
sizeof(uint32_t));
if (ret < 0) {
goto exit;
}
le64_to_cpus(&s->virtual_disk_size);
le32_to_cpus(&s->logical_sector_size);
le32_to_cpus(&s->physical_sector_size);
if (s->logical_sector_size == 0 || s->params.block_size == 0) {
ret = -EINVAL;
goto exit;
}
/* both block_size and sector_size are guaranteed powers of 2 */
s->sectors_per_block = s->params.block_size / s->logical_sector_size;
s->chunk_ratio = (VHDX_MAX_SECTORS_PER_BLOCK) *
(uint64_t)s->logical_sector_size /
(uint64_t)s->params.block_size;
/* These values are ones we will want to use for division / multiplication
* later on, and they are all guaranteed (per the spec) to be powers of 2,
* so we can take advantage of that for shift operations during
* reads/writes */
if (s->logical_sector_size & (s->logical_sector_size - 1)) {
ret = -EINVAL;
goto exit;
}
if (s->sectors_per_block & (s->sectors_per_block - 1)) {
ret = -EINVAL;
goto exit;
}
if (s->chunk_ratio & (s->chunk_ratio - 1)) {
ret = -EINVAL;
goto exit;
}
s->block_size = s->params.block_size;
if (s->block_size & (s->block_size - 1)) {
ret = -EINVAL;
goto exit;
}
s->logical_sector_size_bits = 31 - clz32(s->logical_sector_size);
s->sectors_per_block_bits = 31 - clz32(s->sectors_per_block);
s->chunk_ratio_bits = 63 - clz64(s->chunk_ratio);
s->block_size_bits = 31 - clz32(s->block_size);
ret = 0;
exit:
qemu_vfree(buffer);
return ret;
}
static void vdi_header_to_cpu(VdiHeader *header)
{
le32_to_cpus(&header->signature);
le32_to_cpus(&header->version);
le32_to_cpus(&header->header_size);
le32_to_cpus(&header->image_type);
le32_to_cpus(&header->image_flags);
le32_to_cpus(&header->offset_bmap);
le32_to_cpus(&header->offset_data);
le32_to_cpus(&header->cylinders);
le32_to_cpus(&header->heads);
le32_to_cpus(&header->sectors);
le32_to_cpus(&header->sector_size);
le64_to_cpus(&header->disk_size);
le32_to_cpus(&header->block_size);
le32_to_cpus(&header->block_extra);
le32_to_cpus(&header->blocks_in_image);
le32_to_cpus(&header->blocks_allocated);
uuid_convert(header->uuid_image);
uuid_convert(header->uuid_last_snap);
uuid_convert(header->uuid_link);
uuid_convert(header->uuid_parent);
}
void mptsas_fix_scsi_task_mgmt_endianness(MPIMsgSCSITaskMgmt *req)
{
le32_to_cpus(&req->MsgContext);
le32_to_cpus(&req->TaskMsgContext);
}
int escore_write_vs_data_block(struct escore_priv *escore)
{
u32 cmd;
u32 resp;
int ret;
u8 *dptr;
u16 rem;
u8 wdb[4];
struct escore_voice_sense *voice_sense =
(struct escore_voice_sense *) escore->voice_sense;
if (voice_sense->vs_keyword_param_size == 0) {
dev_warn(escore->dev,
"%s(): attempt to write empty keyword data block\n",
__func__);
return -ENOENT;
}
BUG_ON(voice_sense->vs_keyword_param_size % 4 != 0);
mutex_lock(&escore->api_mutex);
cmd = (ES_WRITE_DATA_BLOCK << 16) |
(voice_sense->vs_keyword_param_size & 0xffff);
cmd = cpu_to_le32(cmd);
ret = escore->bus.ops.write(escore, (char *)&cmd, 4);
if (ret < 0) {
dev_err(escore->dev,
"%s(): error writing cmd 0x%08x to device\n",
__func__, cmd);
goto EXIT;
}
usleep_range(10000, 10000);
ret = escore->bus.ops.read(escore, (char *)&resp, 4);
if (ret < 0) {
dev_dbg(escore->dev, "%s(): error sending request = %d\n",
__func__, ret);
goto EXIT;
}
le32_to_cpus(resp);
dev_dbg(escore->dev, "%s(): resp=0x%08x\n", __func__, resp);
if ((resp & 0xffff0000) != (ES_WRITE_DATA_BLOCK << 16)) {
dev_err(escore->dev, "%s(): invalid write data block 0x%08x\n",
__func__, resp);
goto EXIT;
}
dptr = voice_sense->vs_keyword_param;
for (rem = voice_sense->vs_keyword_param_size; rem > 0;
rem -= 4, dptr += 4) {
wdb[0] = dptr[3];
wdb[1] = dptr[2];
wdb[2] = dptr[1];
wdb[3] = dptr[0];
ret = escore->bus.ops.write(escore, (char *)wdb, 4);
if (ret < 0) {
dev_err(escore->dev, "%s(): v-s wdb error offset=%hu\n",
__func__, dptr - voice_sense->vs_keyword_param);
goto EXIT;
}
}
usleep_range(10000, 10000);
memset(&resp, 0, 4);
ret = escore->bus.ops.read(escore, (char *)&resp, 4);
if (ret < 0) {
dev_dbg(escore->dev, "%s(): error sending request = %d\n",
__func__, ret);
goto EXIT;
}
le32_to_cpus(resp);
dev_dbg(escore->dev, "%s(): resp=0x%08x\n", __func__, resp);
if (resp & 0xffff) {
dev_err(escore->dev, "%s(): write data block error 0x%08x\n",
__func__, resp);
goto EXIT;
}
dev_info(escore->dev, "%s(): v-s wdb success\n", __func__);
EXIT:
mutex_unlock(&escore->api_mutex);
if (ret != 0)
dev_err(escore->dev, "%s(): v-s wdb failed ret=%d\n",
__func__, ret);
return ret;
}
/* Note: this may only end up being called in a api locked context. In
* that case the mutex locks need to be removed.
*/
int escore_read_vs_data_block(struct escore_priv *escore)
{
struct escore_voice_sense *voice_sense =
(struct escore_voice_sense *) escore->voice_sense;
/* This function is not re-entrant so avoid stack bloat. */
u8 block[ES_VS_KEYWORD_PARAM_MAX];
u32 cmd;
u32 resp;
int ret;
unsigned size;
unsigned rdcnt;
mutex_lock(&escore->api_mutex);
/* Read voice sense keyword data block request. */
cmd = cpu_to_le32(ES_READ_DATA_BLOCK << 16 | ES_VS_DATA_BLOCK);
escore->bus.ops.write(escore, (char *)&cmd, 4);
usleep_range(5000, 5000);
ret = escore->bus.ops.read(escore, (char *)&resp, 4);
if (ret < 0) {
dev_dbg(escore->dev, "%s(): error sending request = %d\n",
__func__, ret);
goto out;
}
le32_to_cpus(resp);
size = resp & 0xffff;
dev_dbg(escore->dev, "%s(): resp=0x%08x size=%d\n",
__func__, resp, size);
if ((resp & 0xffff0000) != (ES_READ_DATA_BLOCK << 16)) {
dev_err(escore->dev,
"%s(): invalid read vs data block response = 0x%08x\n",
__func__, resp);
goto out;
}
BUG_ON(size == 0);
BUG_ON(size > ES_VS_KEYWORD_PARAM_MAX);
BUG_ON(size % 4 != 0);
/* This assumes we need to transfer the block in 4 byte
* increments. This is true on slimbus, but may not hold true
* for other buses.
*/
for (rdcnt = 0; rdcnt < size; rdcnt += 4) {
ret = escore->bus.ops.read(escore, (char *)&resp, 4);
if (ret < 0) {
dev_dbg(escore->dev,
"%s(): error reading data block at %d bytes\n",
__func__, rdcnt);
goto out;
}
memcpy(&block[rdcnt], &resp, 4);
}
memcpy(voice_sense->vs_keyword_param, block, rdcnt);
voice_sense->vs_keyword_param_size = rdcnt;
dev_dbg(escore->dev, "%s(): stored v-s keyword block of %d bytes\n",
__func__, rdcnt);
out:
mutex_unlock(&escore->api_mutex);
if (ret)
dev_err(escore->dev, "%s(): v-s read data block failure=%d\n",
__func__, ret);
return ret;
}
void mptsas_fix_port_enable_endianness(MPIMsgPortEnable *req)
{
le32_to_cpus(&req->MsgContext);
}
void mptsas_fix_port_facts_endianness(MPIMsgPortFacts *req)
{
le32_to_cpus(&req->MsgContext);
}
static int vhdx_open_region_tables(BlockDriverState *bs, BDRVVHDXState *s)
{
int ret = 0;
uint8_t *buffer;
int offset = 0;
VHDXRegionTableEntry rt_entry;
uint32_t i;
bool bat_rt_found = false;
bool metadata_rt_found = false;
/* We have to read the whole 64KB block, because the crc32 is over the
* whole block */
buffer = qemu_blockalign(bs, VHDX_HEADER_BLOCK_SIZE);
ret = bdrv_pread(bs->file, VHDX_REGION_TABLE_OFFSET, buffer,
VHDX_HEADER_BLOCK_SIZE);
if (ret < 0) {
goto fail;
}
memcpy(&s->rt, buffer, sizeof(s->rt));
le32_to_cpus(&s->rt.signature);
le32_to_cpus(&s->rt.checksum);
le32_to_cpus(&s->rt.entry_count);
le32_to_cpus(&s->rt.reserved);
offset += sizeof(s->rt);
if (!vhdx_checksum_is_valid(buffer, VHDX_HEADER_BLOCK_SIZE, 4) ||
memcmp(&s->rt.signature, "regi", 4)) {
ret = -EINVAL;
goto fail;
}
/* Per spec, maximum region table entry count is 2047 */
if (s->rt.entry_count > 2047) {
ret = -EINVAL;
goto fail;
}
for (i = 0; i < s->rt.entry_count; i++) {
memcpy(&rt_entry, buffer + offset, sizeof(rt_entry));
offset += sizeof(rt_entry);
leguid_to_cpus(&rt_entry.guid);
le64_to_cpus(&rt_entry.file_offset);
le32_to_cpus(&rt_entry.length);
le32_to_cpus(&rt_entry.data_bits);
/* see if we recognize the entry */
if (guid_eq(rt_entry.guid, bat_guid)) {
/* must be unique; if we have already found it this is invalid */
if (bat_rt_found) {
ret = -EINVAL;
goto fail;
}
bat_rt_found = true;
s->bat_rt = rt_entry;
continue;
}
if (guid_eq(rt_entry.guid, metadata_guid)) {
/* must be unique; if we have already found it this is invalid */
if (metadata_rt_found) {
ret = -EINVAL;
goto fail;
}
metadata_rt_found = true;
s->metadata_rt = rt_entry;
continue;
}
if (rt_entry.data_bits & VHDX_REGION_ENTRY_REQUIRED) {
/* cannot read vhdx file - required region table entry that
* we do not understand. per spec, we must fail to open */
ret = -ENOTSUP;
goto fail;
}
}
ret = 0;
fail:
qemu_vfree(buffer);
return ret;
}
static int genelink_rx_fixup(struct usbnet *dev, struct sk_buff *skb)
{
struct gl_header *header;
struct gl_packet *packet;
struct sk_buff *gl_skb;
u32 size;
header = (struct gl_header *) skb->data;
// get the packet count of the received skb
le32_to_cpus(&header->packet_count);
if ((header->packet_count > GL_MAX_TRANSMIT_PACKETS)
|| (header->packet_count < 0)) {
dbg("genelink: invalid received packet count %d",
header->packet_count);
return 0;
}
// set the current packet pointer to the first packet
packet = &header->packets;
// decrement the length for the packet count size 4 bytes
skb_pull(skb, 4);
while (header->packet_count > 1) {
// get the packet length
size = le32_to_cpu(packet->packet_length);
// this may be a broken packet
if (size > GL_MAX_PACKET_LEN) {
dbg("genelink: invalid rx length %d", size);
return 0;
}
// allocate the skb for the individual packet
gl_skb = alloc_skb(size, GFP_ATOMIC);
if (gl_skb) {
// copy the packet data to the new skb
memcpy(skb_put(gl_skb, size),
packet->packet_data, size);
usbnet_skb_return(dev, gl_skb);
}
// advance to the next packet
packet = (struct gl_packet *)
&packet->packet_data [size];
header->packet_count--;
// shift the data pointer to the next gl_packet
skb_pull(skb, size + 4);
}
// skip the packet length field 4 bytes
skb_pull(skb, 4);
if (skb->len > GL_MAX_PACKET_LEN) {
dbg("genelink: invalid rx length %d", skb->len);
return 0;
}
return 1;
}
void mptsas_fix_event_notification_endianness(MPIMsgEventNotify *req)
{
le32_to_cpus(&req->MsgContext);
}
void mptsas_fix_ioc_facts_endianness(MPIMsgIOCFacts *req)
{
le32_to_cpus(&req->MsgContext);
}
