Differential D24061 Diff 72021 head/sys/dev/hyperv/vmbus/vmbus_reg.h

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head/sys/dev/hyperv/vmbus/vmbus_reg.h

Show First 20 Lines • Show All 121 Lines • ▼ Show 20 Lines	struct vmbus_bufring {
*		*
* For RX bufring, once this is set to 1 by us, host will not		* For RX bufring, once this is set to 1 by us, host will not
* further dispatch interrupts to us, even if there are data		* further dispatch interrupts to us, even if there are data
* pending on the RX bufring. This effectively disables the		* pending on the RX bufring. This effectively disables the
* interrupt of the channel to which this RX bufring is attached.		* interrupt of the channel to which this RX bufring is attached.
*/		*/
volatile uint32_t br_imask;		volatile uint32_t br_imask;

uint8_t br_rsvd[4084];		/*
		* WS2012/Win8 and later versions of Hyper-V implement interrupt
		* driven flow management. The feature bit feat_pending_snd_sz
		* is set by the host on the host->guest buffer ring, and by the
		* guest on the guest->host buffer ring.
		*
		* The meaning of the feature bit is a bit complex in that it has
		* semantics that apply to both buffer rings. If the guest sets
		* the feature bit in the guest->host buffer ring, the guest is
		* telling the host that:
		* 1) It will set the br_pending_snd_sz field in the guest->host buffer
		* ring when it is waiting for space to become available, and
		* 2) It will read the pending_send_sz field in the host->guest
		* ring buffer and interrupt the host when it frees enough space
		*
		* Similarly, if the host sets the feature bit in the host->guest
		* ring buffer, the host is telling the guest that:
		* 1) It will set the pending_send_sz field in the host->guest ring
		* buffer when it is waiting for space to become available, and
		* 2) It will read the pending_send_sz field in the guest->host
		* ring buffer and interrupt the guest when it frees enough space
		*
		* If either the guest or host does not set the feature bit that it
		* owns, that guest or host must do polling if it encounters a full
		* ring buffer, and not signal the other end with an interrupt.
		*/
		volatile uint32_t br_pending_snd_sz;
		uint32_t br_rsvd1[12];
		union {
		struct {
		uint32_t feat_pending_snd_sz:1;
		};
		uint32_t value;
		} br_feature_bits;

		/* Padding to PAGE_SIZE */
		uint8_t br_rsvd2[4020];

		/*
		* Total guest to host interrupt count
		* - For rx ring, this counts the guest signaling host when this rx
		* ring changing from full to not full.
		*
		* - For tx ring, this counts the guest signaling host when this tx
		* ring changing from empty to non empty.
		*/
		uint64_t br_g2h_intr_cnt;

uint8_t br_data[];		uint8_t br_data[];
} __packed;		} __packed;
CTASSERT(sizeof(struct vmbus_bufring) == PAGE_SIZE);		CTASSERT(sizeof(struct vmbus_bufring) == PAGE_SIZE);

/*		/*
* Channel		* Channel
*/		*/

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#define VMBUS_CHANMSG_TYPE_GPADL_SUBCONN 9 /* REQ */		#define VMBUS_CHANMSG_TYPE_GPADL_SUBCONN 9 /* REQ */
#define VMBUS_CHANMSG_TYPE_GPADL_CONNRESP 10 /* RESP */		#define VMBUS_CHANMSG_TYPE_GPADL_CONNRESP 10 /* RESP */
#define VMBUS_CHANMSG_TYPE_GPADL_DISCONN 11 /* REQ */		#define VMBUS_CHANMSG_TYPE_GPADL_DISCONN 11 /* REQ */
#define VMBUS_CHANMSG_TYPE_GPADL_DISCONNRESP 12 /* RESP */		#define VMBUS_CHANMSG_TYPE_GPADL_DISCONNRESP 12 /* RESP */
#define VMBUS_CHANMSG_TYPE_CHFREE 13 /* REQ */		#define VMBUS_CHANMSG_TYPE_CHFREE 13 /* REQ */
#define VMBUS_CHANMSG_TYPE_CONNECT 14 /* REQ */		#define VMBUS_CHANMSG_TYPE_CONNECT 14 /* REQ */
#define VMBUS_CHANMSG_TYPE_CONNECT_RESP 15 /* RESP */		#define VMBUS_CHANMSG_TYPE_CONNECT_RESP 15 /* RESP */
#define VMBUS_CHANMSG_TYPE_DISCONNECT 16 /* REQ */		#define VMBUS_CHANMSG_TYPE_DISCONNECT 16 /* REQ */
#define VMBUS_CHANMSG_TYPE_MAX 22		#define VMBUS_CHANMSG_TYPE_17 17
		#define VMBUS_CHANMSG_TYPE_18 18
		#define VMBUS_CHANMSG_TYPE_19 19
		#define VMBUS_CHANMSG_TYPE_20 20
		#define VMBUS_CHANMSG_TYPE_TL_CONN 21 /* REQ */
		#define VMBUS_CHANMSG_TYPE_22 22
		#define VMBUS_CHANMSG_TYPE_TL_RESULT 23 /* RESP */
		#define VMBUS_CHANMSG_TYPE_MAX 24

struct vmbus_chanmsg_hdr {		struct vmbus_chanmsg_hdr {
uint32_t chm_type; /* VMBUS_CHANMSG_TYPE_ */		uint32_t chm_type; /* VMBUS_CHANMSG_TYPE_ */
uint32_t chm_rsvd;		uint32_t chm_rsvd;
} __packed;		} __packed;

/* VMBUS_CHANMSG_TYPE_CONNECT */		/* VMBUS_CHANMSG_TYPE_CONNECT */
struct vmbus_chanmsg_connect {		struct vmbus_chanmsg_connect {
Show All 16 Lines	struct vmbus_chanmsg_chrequest {
struct vmbus_chanmsg_hdr chm_hdr;		struct vmbus_chanmsg_hdr chm_hdr;
} __packed;		} __packed;

/* VMBUS_CHANMSG_TYPE_DISCONNECT */		/* VMBUS_CHANMSG_TYPE_DISCONNECT */
struct vmbus_chanmsg_disconnect {		struct vmbus_chanmsg_disconnect {
struct vmbus_chanmsg_hdr chm_hdr;		struct vmbus_chanmsg_hdr chm_hdr;
} __packed;		} __packed;

		/* VMBUS_CHANMSG_TYPE_TL_CONN */
		/* Hyper-V socket guest connect request */
		struct vmbus_chanmsg_tl_connect {
		struct vmbus_chanmsg_hdr chm_hdr;
		struct hyperv_guid guest_endpoint_id;
		struct hyperv_guid host_service_id;
		} __packed;


/* VMBUS_CHANMSG_TYPE_CHOPEN */		/* VMBUS_CHANMSG_TYPE_CHOPEN */
struct vmbus_chanmsg_chopen {		struct vmbus_chanmsg_chopen {
struct vmbus_chanmsg_hdr chm_hdr;		struct vmbus_chanmsg_hdr chm_hdr;
uint32_t chm_chanid;		uint32_t chm_chanid;
uint32_t chm_openid;		uint32_t chm_openid;
uint32_t chm_gpadl;		uint32_t chm_gpadl;
uint32_t chm_vcpuid;		uint32_t chm_vcpuid;
uint32_t chm_txbr_pgcnt;		uint32_t chm_txbr_pgcnt;
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} __packed;		} __packed;

/* VMBUS_CHANMSG_TYPE_CHRESCIND */		/* VMBUS_CHANMSG_TYPE_CHRESCIND */
struct vmbus_chanmsg_chrescind {		struct vmbus_chanmsg_chrescind {
struct vmbus_chanmsg_hdr chm_hdr;		struct vmbus_chanmsg_hdr chm_hdr;
uint32_t chm_chanid;		uint32_t chm_chanid;
} __packed;		} __packed;

		/* Size of the user defined data buffer for non-pipe offers */
		#define VMBUS_CHANMSG_CHOFFER_UDATA_SIZE 120

		/* Size of the user defined data buffer for pipe offers. */
		#define VMBUS_CHANMSG_CHOFFER_UDATA_PIPE_SIZE 116

/* VMBUS_CHANMSG_TYPE_CHOFFER */		/* VMBUS_CHANMSG_TYPE_CHOFFER */
struct vmbus_chanmsg_choffer {		struct vmbus_chanmsg_choffer {
struct vmbus_chanmsg_hdr chm_hdr;		struct vmbus_chanmsg_hdr chm_hdr;
struct hyperv_guid chm_chtype;		struct hyperv_guid chm_chtype;
struct hyperv_guid chm_chinst;		struct hyperv_guid chm_chinst;
uint64_t chm_chlat; /* unit: 100ns */		uint64_t chm_chlat; /* unit: 100ns */
uint32_t chm_chrev;		uint32_t chm_chrev;
uint32_t chm_svrctx_sz;		uint32_t chm_svrctx_sz;
uint16_t chm_chflags;		uint16_t chm_chflags;
uint16_t chm_mmio_sz; /* unit: MB */		uint16_t chm_mmio_sz; /* unit: MB */
uint8_t chm_udata[120];
		union {
		/* Non-pipes */
		struct {
		uint8_t user_def[VMBUS_CHANMSG_CHOFFER_UDATA_SIZE];
		} std;
		/*
		* Pipes:
		* For integrated pipe protocol, which is implemented on
		* top of standard user-defined data. Pipe clients have
		* VMBUS_CHANMSG_CHOFFER_UDATA_PIPE_SIZE bytes left for
		* their own user.
		*/
		struct {
		uint32_t pipe_mode;
		uint8_t
		user_def[VMBUS_CHANMSG_CHOFFER_UDATA_PIPE_SIZE];
		} pipe;
		} chm_udata;

uint16_t chm_subidx;		uint16_t chm_subidx;
uint16_t chm_rsvd;		uint16_t chm_rsvd;
uint32_t chm_chanid;		uint32_t chm_chanid;
uint8_t chm_montrig;		uint8_t chm_montrig;
uint8_t chm_flags1; /* VMBUS_CHOFFER_FLAG1_ */		uint8_t chm_flags1; /* VMBUS_CHOFFER_FLAG1_ */
uint16_t chm_flags2;		uint16_t chm_flags2;
uint32_t chm_connid;		uint32_t chm_connid;
} __packed;		} __packed;
CTASSERT(sizeof(struct vmbus_chanmsg_choffer) <= VMBUS_MSG_DSIZE_MAX);		CTASSERT(sizeof(struct vmbus_chanmsg_choffer) <= VMBUS_MSG_DSIZE_MAX);

		/* Server Flag */
		#define VMBUS_CHAN_TLNPI_PROVIDER_OFFER 0x2000

#define VMBUS_CHOFFER_FLAG1_HASMNF 0x01		#define VMBUS_CHOFFER_FLAG1_HASMNF 0x01

#endif /* !_VMBUS_REG_H_ */		#endif /* !_VMBUS_REG_H_ */