--- /dev/null
+/* SPDX-License-Identifier: BSD-3-Clause
+ * Copyright (c) 2018, Microsoft Corporation.
+ * All Rights Reserved.
+ */
+
+#ifndef _VMBUS_REG_H_
+#define _VMBUS_REG_H_
+
+/*
+ * Hyper-V SynIC message format.
+ */
+#define VMBUS_MSG_DSIZE_MAX 240
+#define VMBUS_MSG_SIZE 256
+
+struct vmbus_message {
+ uint32_t type; /* HYPERV_MSGTYPE_ */
+ uint8_t dsize; /* data size */
+ uint8_t flags; /* VMBUS_MSGFLAG_ */
+ uint16_t rsvd;
+ uint64_t id;
+ uint8_t data[VMBUS_MSG_DSIZE_MAX];
+} __rte_packed;
+
+#define VMBUS_MSGFLAG_PENDING 0x01
+
+/*
+ * Hyper-V Monitor Notification Facility
+ */
+
+struct vmbus_mon_trig {
+ uint32_t pending;
+ uint32_t armed;
+} __rte_packed;
+
+#define VMBUS_MONTRIGS_MAX 4
+#define VMBUS_MONTRIG_LEN 32
+
+/*
+ * Hyper-V Monitor Notification Facility
+ */
+struct hyperv_mon_param {
+ uint32_t connid;
+ uint16_t evtflag_ofs;
+ uint16_t rsvd;
+} __rte_packed;
+
+struct vmbus_mon_page {
+ uint32_t state;
+ uint32_t rsvd1;
+
+ struct vmbus_mon_trig trigs[VMBUS_MONTRIGS_MAX];
+ uint8_t rsvd2[536];
+
+ uint16_t lat[VMBUS_MONTRIGS_MAX][VMBUS_MONTRIG_LEN];
+ uint8_t rsvd3[256];
+
+ struct hyperv_mon_param
+ param[VMBUS_MONTRIGS_MAX][VMBUS_MONTRIG_LEN];
+ uint8_t rsvd4[1984];
+} __rte_packed;
+
+/*
+ * Buffer ring
+ */
+
+struct vmbus_bufring {
+ volatile uint32_t windex;
+ volatile uint32_t rindex;
+
+ /*
+ * Interrupt mask {0,1}
+ *
+ * For TX bufring, host set this to 1, when it is processing
+ * the TX bufring, so that we can safely skip the TX event
+ * notification to host.
+ *
+ * For RX bufring, once this is set to 1 by us, host will not
+ * further dispatch interrupts to us, even if there are data
+ * pending on the RX bufring. This effectively disables the
+ * interrupt of the channel to which this RX bufring is attached.
+ */
+ volatile uint32_t imask;
+
+ /*
+ * Win8 uses some of the reserved bits to implement
+ * interrupt driven flow management. On the send side
+ * we can request that the receiver interrupt the sender
+ * when the ring transitions from being full to being able
+ * to handle a message of size "pending_send_sz".
+ *
+ * Add necessary state for this enhancement.
+ */
+ volatile uint32_t pending_send;
+ uint32_t reserved1[12];
+
+ union {
+ struct {
+ uint32_t feat_pending_send_sz:1;
+ };
+ uint32_t value;
+ } feature_bits;
+
+ /* Pad it to PAGE_SIZE so that data starts on page boundary */
+ uint8_t reserved2[4028];
+
+ /*
+ * Ring data starts here + RingDataStartOffset
+ * !!! DO NOT place any fields below this !!!
+ */
+ uint8_t data[0];
+} __rte_packed;
+
+/*
+ * Channel packets
+ */
+
+/* Channel packet flags */
+#define VMBUS_CHANPKT_TYPE_INBAND 0x0006
+#define VMBUS_CHANPKT_TYPE_RXBUF 0x0007
+#define VMBUS_CHANPKT_TYPE_GPA 0x0009
+#define VMBUS_CHANPKT_TYPE_COMP 0x000b
+
+#define VMBUS_CHANPKT_FLAG_NONE 0
+#define VMBUS_CHANPKT_FLAG_RC 0x0001 /* report completion */
+
+#define VMBUS_CHANPKT_SIZE_SHIFT 3
+#define VMBUS_CHANPKT_SIZE_ALIGN (1 << VMBUS_CHANPKT_SIZE_SHIFT)
+#define VMBUS_CHANPKT_HLEN_MIN \
+ (sizeof(struct vmbus_chanpkt_hdr) >> VMBUS_CHANPKT_SIZE_SHIFT)
+
+static inline uint32_t
+vmbus_chanpkt_getlen(uint16_t pktlen)
+{
+ return (uint32_t)pktlen << VMBUS_CHANPKT_SIZE_SHIFT;
+}
+
+/*
+ * GPA stuffs.
+ */
+struct vmbus_gpa_range {
+ uint32_t len;
+ uint32_t ofs;
+ uint64_t page[0];
+} __rte_packed;
+
+/* This is actually vmbus_gpa_range.gpa_page[1] */
+struct vmbus_gpa {
+ uint32_t len;
+ uint32_t ofs;
+ uint64_t page;
+} __rte_packed;
+
+struct vmbus_chanpkt_hdr {
+ uint16_t type; /* VMBUS_CHANPKT_TYPE_ */
+ uint16_t hlen; /* header len, in 8 bytes */
+ uint16_t tlen; /* total len, in 8 bytes */
+ uint16_t flags; /* VMBUS_CHANPKT_FLAG_ */
+ uint64_t xactid;
+} __rte_packed;
+
+static inline uint32_t
+vmbus_chanpkt_datalen(const struct vmbus_chanpkt_hdr *pkt)
+{
+ return vmbus_chanpkt_getlen(pkt->tlen)
+ - vmbus_chanpkt_getlen(pkt->hlen);
+}
+
+struct vmbus_chanpkt {
+ struct vmbus_chanpkt_hdr hdr;
+} __rte_packed;
+
+struct vmbus_rxbuf_desc {
+ uint32_t len;
+ uint32_t ofs;
+} __rte_packed;
+
+struct vmbus_chanpkt_rxbuf {
+ struct vmbus_chanpkt_hdr hdr;
+ uint16_t rxbuf_id;
+ uint16_t rsvd;
+ uint32_t rxbuf_cnt;
+ struct vmbus_rxbuf_desc rxbuf[];
+} __rte_packed;
+
+struct vmbus_chanpkt_sglist {
+ struct vmbus_chanpkt_hdr hdr;
+ uint32_t rsvd;
+ uint32_t gpa_cnt;
+ struct vmbus_gpa gpa[];
+} __rte_packed;
+
+/*
+ * Channel messages
+ * - Embedded in vmbus_message.msg_data, e.g. response and notification.
+ * - Embedded in hypercall_postmsg_in.hc_data, e.g. request.
+ */
+
+#define VMBUS_CHANMSG_TYPE_CHOFFER 1 /* NOTE */
+#define VMBUS_CHANMSG_TYPE_CHRESCIND 2 /* NOTE */
+#define VMBUS_CHANMSG_TYPE_CHREQUEST 3 /* REQ */
+#define VMBUS_CHANMSG_TYPE_CHOFFER_DONE 4 /* NOTE */
+#define VMBUS_CHANMSG_TYPE_CHOPEN 5 /* REQ */
+#define VMBUS_CHANMSG_TYPE_CHOPEN_RESP 6 /* RESP */
+#define VMBUS_CHANMSG_TYPE_CHCLOSE 7 /* REQ */
+#define VMBUS_CHANMSG_TYPE_GPADL_CONN 8 /* REQ */
+#define VMBUS_CHANMSG_TYPE_GPADL_SUBCONN 9 /* REQ */
+#define VMBUS_CHANMSG_TYPE_GPADL_CONNRESP 10 /* RESP */
+#define VMBUS_CHANMSG_TYPE_GPADL_DISCONN 11 /* REQ */
+#define VMBUS_CHANMSG_TYPE_GPADL_DISCONNRESP 12 /* RESP */
+#define VMBUS_CHANMSG_TYPE_CHFREE 13 /* REQ */
+#define VMBUS_CHANMSG_TYPE_CONNECT 14 /* REQ */
+#define VMBUS_CHANMSG_TYPE_CONNECT_RESP 15 /* RESP */
+#define VMBUS_CHANMSG_TYPE_DISCONNECT 16 /* REQ */
+#define VMBUS_CHANMSG_TYPE_MAX 22
+
+struct vmbus_chanmsg_hdr {
+ uint32_t type; /* VMBUS_CHANMSG_TYPE_ */
+ uint32_t rsvd;
+} __rte_packed;
+
+/* VMBUS_CHANMSG_TYPE_CONNECT */
+struct vmbus_chanmsg_connect {
+ struct vmbus_chanmsg_hdr hdr;
+ uint32_t ver;
+ uint32_t rsvd;
+ uint64_t evtflags;
+ uint64_t mnf1;
+ uint64_t mnf2;
+} __rte_packed;
+
+/* VMBUS_CHANMSG_TYPE_CONNECT_RESP */
+struct vmbus_chanmsg_connect_resp {
+ struct vmbus_chanmsg_hdr hdr;
+ uint8_t done;
+} __rte_packed;
+
+/* VMBUS_CHANMSG_TYPE_CHREQUEST */
+struct vmbus_chanmsg_chrequest {
+ struct vmbus_chanmsg_hdr hdr;
+} __rte_packed;
+
+/* VMBUS_CHANMSG_TYPE_DISCONNECT */
+struct vmbus_chanmsg_disconnect {
+ struct vmbus_chanmsg_hdr hdr;
+} __rte_packed;
+
+/* VMBUS_CHANMSG_TYPE_CHOPEN */
+struct vmbus_chanmsg_chopen {
+ struct vmbus_chanmsg_hdr hdr;
+ uint32_t chanid;
+ uint32_t openid;
+ uint32_t gpadl;
+ uint32_t vcpuid;
+ uint32_t txbr_pgcnt;
+#define VMBUS_CHANMSG_CHOPEN_UDATA_SIZE 120
+ uint8_t udata[VMBUS_CHANMSG_CHOPEN_UDATA_SIZE];
+} __rte_packed;
+
+/* VMBUS_CHANMSG_TYPE_CHOPEN_RESP */
+struct vmbus_chanmsg_chopen_resp {
+ struct vmbus_chanmsg_hdr hdr;
+ uint32_t chanid;
+ uint32_t openid;
+ uint32_t status;
+} __rte_packed;
+
+/* VMBUS_CHANMSG_TYPE_GPADL_CONN */
+struct vmbus_chanmsg_gpadl_conn {
+ struct vmbus_chanmsg_hdr hdr;
+ uint32_t chanid;
+ uint32_t gpadl;
+ uint16_t range_len;
+ uint16_t range_cnt;
+ struct vmbus_gpa_range range;
+} __rte_packed;
+
+#define VMBUS_CHANMSG_GPADL_CONN_PGMAX 26
+
+/* VMBUS_CHANMSG_TYPE_GPADL_SUBCONN */
+struct vmbus_chanmsg_gpadl_subconn {
+ struct vmbus_chanmsg_hdr hdr;
+ uint32_t msgno;
+ uint32_t gpadl;
+ uint64_t gpa_page[];
+} __rte_packed;
+
+#define VMBUS_CHANMSG_GPADL_SUBCONN_PGMAX 28
+
+/* VMBUS_CHANMSG_TYPE_GPADL_CONNRESP */
+struct vmbus_chanmsg_gpadl_connresp {
+ struct vmbus_chanmsg_hdr hdr;
+ uint32_t chanid;
+ uint32_t gpadl;
+ uint32_t status;
+} __rte_packed;
+
+/* VMBUS_CHANMSG_TYPE_CHCLOSE */
+struct vmbus_chanmsg_chclose {
+ struct vmbus_chanmsg_hdr hdr;
+ uint32_t chanid;
+} __rte_packed;
+
+/* VMBUS_CHANMSG_TYPE_GPADL_DISCONN */
+struct vmbus_chanmsg_gpadl_disconn {
+ struct vmbus_chanmsg_hdr hdr;
+ uint32_t chanid;
+ uint32_t gpadl;
+} __rte_packed;
+
+/* VMBUS_CHANMSG_TYPE_CHFREE */
+struct vmbus_chanmsg_chfree {
+ struct vmbus_chanmsg_hdr hdr;
+ uint32_t chanid;
+} __rte_packed;
+
+/* VMBUS_CHANMSG_TYPE_CHRESCIND */
+struct vmbus_chanmsg_chrescind {
+ struct vmbus_chanmsg_hdr hdr;
+ uint32_t chanid;
+} __rte_packed;
+
+/* VMBUS_CHANMSG_TYPE_CHOFFER */
+struct vmbus_chanmsg_choffer {
+ struct vmbus_chanmsg_hdr hdr;
+ rte_uuid_t chtype;
+ rte_uuid_t chinst;
+ uint64_t chlat; /* unit: 100ns */
+ uint32_t chrev;
+ uint32_t svrctx_sz;
+ uint16_t chflags;
+ uint16_t mmio_sz; /* unit: MB */
+ uint8_t udata[120];
+ uint16_t subidx;
+ uint16_t rsvd;
+ uint32_t chanid;
+ uint8_t montrig;
+ uint8_t flags1; /* VMBUS_CHOFFER_FLAG1_ */
+ uint16_t flags2;
+ uint32_t connid;
+} __rte_packed;
+
+#define VMBUS_CHOFFER_FLAG1_HASMNF 0x01
+
+#endif /* !_VMBUS_REG_H_ */
Code Review / deb_dpdk.git / blobdiff