diff options
Diffstat (limited to 'include/linux')
| -rw-r--r-- | include/linux/hyperv.h | 15 |
1 files changed, 15 insertions, 0 deletions
diff --git a/include/linux/hyperv.h b/include/linux/hyperv.h index 6256cc34c4a6..9d37f8cf1245 100644 --- a/include/linux/hyperv.h +++ b/include/linux/hyperv.h @@ -1578,4 +1578,19 @@ hv_pkt_iter_next(struct vmbus_channel *channel, for (pkt = hv_pkt_iter_first(channel); pkt; \ pkt = hv_pkt_iter_next(channel, pkt)) +/* + * Functions for passing data between SR-IOV PF and VF drivers. The VF driver + * sends requests to read and write blocks. Each block must be 128 bytes or + * smaller. Optionally, the VF driver can register a callback function which + * will be invoked when the host says that one or more of the first 64 block + * IDs is "invalid" which means that the VF driver should reread them. + */ +#define HV_CONFIG_BLOCK_SIZE_MAX 128 +int hv_read_config_block(struct pci_dev *dev, void *buf, unsigned int buf_len, + unsigned int block_id, unsigned int *bytes_returned); +int hv_write_config_block(struct pci_dev *dev, void *buf, unsigned int len, + unsigned int block_id); +int hv_register_block_invalidate(struct pci_dev *dev, void *context, + void (*block_invalidate)(void *context, + u64 block_mask)); #endif /* _HYPERV_H */ |