diff options
Diffstat (limited to 'sys/arch/sparc64/dev/viovar.h')
| -rw-r--r-- | sys/arch/sparc64/dev/viovar.h | 118 |
1 files changed, 118 insertions, 0 deletions
diff --git a/sys/arch/sparc64/dev/viovar.h b/sys/arch/sparc64/dev/viovar.h new file mode 100644 index 00000000000..bd755125e78 --- /dev/null +++ b/sys/arch/sparc64/dev/viovar.h @@ -0,0 +1,118 @@ +/* $OpenBSD: viovar.h,v 1.1 2009/01/10 20:32:37 kettenis Exp $ */ +/* + * Copyright (c) 2009 Mark Kettenis + * + * Permission to use, copy, modify, and distribute this software for any + * purpose with or without fee is hereby granted, provided that the above + * copyright notice and this permission notice appear in all copies. + * + * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES + * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF + * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR + * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES + * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN + * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF + * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. + */ + +/* + * Virtual IO device protocol. + */ + +struct vio_msg_tag { + uint8_t type; + uint8_t stype; + uint16_t stype_env; + uint32_t sid; +}; + +struct vio_msg { + uint64_t hdr; + uint8_t type; + uint8_t stype; + uint16_t stype_env; + uint32_t sid; + uint16_t major; + uint16_t minor; + uint8_t dev_class; +}; + +/* Message types. */ +#define VIO_TYPE_CTRL 0x01 +#define VIO_TYPE_DATA 0x02 +#define VIO_TYPE_ERR 0x04 + +/* Sub-Message types. */ +#define VIO_SUBTYPE_INFO 0x01 +#define VIO_SUBTYPE_ACK 0x02 +#define VIO_SUBTYPE_NACK 0x04 + +/* Sub-Type envelopes. */ +#define VIO_VER_INFO 0x0001 +#define VIO_ATTR_INFO 0x0002 +#define VIO_DRING_REG 0x0003 +#define VIO_DRING_UNREG 0x0004 +#define VIO_RDX 0x0005 + +#define VIO_PKT_DATA 0x0040 +#define VIO_DESC_DATA 0x0041 +#define VIO_DRING_DATA 0x0042 + +struct vio_ver_info { + struct vio_msg_tag tag; + uint16_t major; + uint16_t minor; + uint8_t dev_class; +}; + +/* Device types. */ +#define VDEV_NETWORK 0x01 +#define VDEV_NETWORK_SWITCH 0x02 +#define VDEV_DISK 0x03 +#define VDEV_DISK_SERVER 0x04 + +struct vio_dring_reg { + struct vio_msg_tag tag; + uint64_t dring_ident; + uint32_t num_descriptors; + uint32_t descriptor_size; + uint16_t options; + uint16_t _reserved; + uint32_t ncookies; + struct ldc_cookie cookie[1]; +}; + +/* Ring options. */ +#define VIO_TX_RING 0x0001 +#define VIO_RX_RING 0x0002 + +/* Transfer modes. */ +#define VIO_PKT_MODE 0x01 +#define VIO_DESC_MODE 0x02 +#define VIO_DRING_MODE 0x03 + +struct vio_dring_hdr { + uint8_t dstate; + uint8_t ack: 1; + uint16_t _reserved[3]; +}; + +/* Descriptor states. */ +#define VIO_DESC_FREE 0x01 +#define VIO_DESC_READY 0x02 +#define VIO_DESC_ACCEPTED 0x03 +#define VIO_DESC_DONE 0x04 + +struct vio_dring_msg { + struct vio_msg_tag tag; + uint64_t seq_no; + uint64_t dring_ident; + uint32_t start_idx; + uint32_t end_idx; + uint8_t proc_state; + uint8_t _reserved[7]; +}; + +/* Ring states. */ +#define VIO_DP_ACTIVE 0x01 +#define VIO_DP_STOPPED 0x02 |