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/* SPDX-License-Identifier: BSD-3-Clause
* Copyright (c) 2018 Microsoft Corp.
* All rights reserved.
*/
/*
* The indirection table message is the largest message
* received from host, and that is 112 bytes.
*/
#define NVS_RESPSIZE_MAX 256
/*
* NDIS protocol version numbers
*/
#define NDIS_VERSION_6_1 0x00060001
#define NDIS_VERSION_6_20 0x00060014
#define NDIS_VERSION_6_30 0x0006001e
#define NDIS_VERSION_MAJOR(ver) (((ver) & 0xffff0000) >> 16)
#define NDIS_VERSION_MINOR(ver) ((ver) & 0xffff)
/*
* NVS versions.
*/
#define NVS_VERSION_1 0x00002
#define NVS_VERSION_2 0x30002
#define NVS_VERSION_4 0x40000
#define NVS_VERSION_5 0x50000
#define NVS_VERSION_6 0x60000
#define NVS_VERSION_61 0x60001
#define NVS_RXBUF_SIG 0xcafe
#define NVS_CHIM_SIG 0xface
#define NVS_CHIM_IDX_INVALID 0xffffffff
#define NVS_RNDIS_MTYPE_DATA 0
#define NVS_RNDIS_MTYPE_CTRL 1
/*
* NVS message transacion status codes.
*/
#define NVS_STATUS_OK 1
#define NVS_STATUS_FAILED 2
/*
* NVS request/response message types.
*/
#define NVS_TYPE_INIT 1
#define NVS_TYPE_INIT_RESP 2
#define NVS_TYPE_NDIS_INIT 100
#define NVS_TYPE_RXBUF_CONN 101
#define NVS_TYPE_RXBUF_CONNRESP 102
#define NVS_TYPE_RXBUF_DISCONN 103
#define NVS_TYPE_CHIM_CONN 104
#define NVS_TYPE_CHIM_CONNRESP 105
#define NVS_TYPE_CHIM_DISCONN 106
#define NVS_TYPE_RNDIS 107
#define NVS_TYPE_RNDIS_ACK 108
#define NVS_TYPE_NDIS_CONF 125
#define NVS_TYPE_VFASSOC_NOTE 128 /* notification */
#define NVS_TYPE_SET_DATAPATH 129
#define NVS_TYPE_SUBCH_REQ 133
#define NVS_TYPE_SUBCH_RESP 133 /* same as SUBCH_REQ */
#define NVS_TYPE_TXTBL_NOTE 134 /* notification */
/* NVS message common header */
struct hn_nvs_hdr {
uint32_t type;
} __rte_packed;
struct hn_nvs_init {
uint32_t type; /* NVS_TYPE_INIT */
uint32_t ver_min;
uint32_t ver_max;
uint8_t rsvd[28];
} __rte_packed;
struct hn_nvs_init_resp {
uint32_t type; /* NVS_TYPE_INIT_RESP */
uint32_t ver; /* deprecated */
uint32_t rsvd;
uint32_t status; /* NVS_STATUS_ */
} __rte_packed;
/* No response */
struct hn_nvs_ndis_conf {
uint32_t type; /* NVS_TYPE_NDIS_CONF */
uint32_t mtu;
uint32_t rsvd;
uint64_t caps; /* NVS_NDIS_CONF_ */
uint8_t rsvd1[20];
} __rte_packed;
#define NVS_NDIS_CONF_SRIOV 0x0004
#define NVS_NDIS_CONF_VLAN 0x0008
/* No response */
struct hn_nvs_ndis_init {
uint32_t type; /* NVS_TYPE_NDIS_INIT */
uint32_t ndis_major; /* NDIS_VERSION_MAJOR_ */
uint32_t ndis_minor; /* NDIS_VERSION_MINOR_ */
uint8_t rsvd[28];
} __rte_packed;
#define NVS_DATAPATH_SYNTHETIC 0
#define NVS_DATAPATH_VF 1
/* No response */
struct hn_nvs_datapath {
uint32_t type; /* NVS_TYPE_SET_DATAPATH */
uint32_t active_path;/* NVS_DATAPATH_* */
uint8_t rsvd[32];
} __rte_packed;
struct hn_nvs_rxbuf_conn {
uint32_t type; /* NVS_TYPE_RXBUF_CONN */
uint32_t gpadl; /* RXBUF vmbus GPADL */
uint16_t sig; /* NVS_RXBUF_SIG */
uint8_t rsvd[30];
} __rte_packed;
struct hn_nvs_rxbuf_sect {
uint32_t start;
uint32_t slotsz;
uint32_t slotcnt;
uint32_t end;
} __rte_packed;
struct hn_nvs_rxbuf_connresp {
uint32_t type; /* NVS_TYPE_RXBUF_CONNRESP */
uint32_t status; /* NVS_STATUS_ */
uint32_t nsect; /* # of elem in nvs_sect */
struct hn_nvs_rxbuf_sect nvs_sect[1];
} __rte_packed;
/* No response */
struct hn_nvs_rxbuf_disconn {
uint32_t type; /* NVS_TYPE_RXBUF_DISCONN */
uint16_t sig; /* NVS_RXBUF_SIG */
uint8_t rsvd[34];
} __rte_packed;
struct hn_nvs_chim_conn {
uint32_t type; /* NVS_TYPE_CHIM_CONN */
uint32_t gpadl; /* chimney buf vmbus GPADL */
uint16_t sig; /* NDIS_NVS_CHIM_SIG */
uint8_t rsvd[30];
} __rte_packed;
struct hn_nvs_chim_connresp {
uint32_t type; /* NVS_TYPE_CHIM_CONNRESP */
uint32_t status; /* NVS_STATUS_ */
uint32_t sectsz; /* section size */
} __rte_packed;
/* No response */
struct hn_nvs_chim_disconn {
uint32_t type; /* NVS_TYPE_CHIM_DISCONN */
uint16_t sig; /* NVS_CHIM_SIG */
uint8_t rsvd[34];
} __rte_packed;
#define NVS_SUBCH_OP_ALLOC 1
struct hn_nvs_subch_req {
uint32_t type; /* NVS_TYPE_SUBCH_REQ */
uint32_t op; /* NVS_SUBCH_OP_ */
uint32_t nsubch;
uint8_t rsvd[28];
} __rte_packed;
struct hn_nvs_subch_resp {
uint32_t type; /* NVS_TYPE_SUBCH_RESP */
uint32_t status; /* NVS_STATUS_ */
uint32_t nsubch;
uint8_t rsvd[28];
} __rte_packed;
struct hn_nvs_rndis {
uint32_t type; /* NVS_TYPE_RNDIS */
uint32_t rndis_mtype;/* NVS_RNDIS_MTYPE_ */
/*
* Chimney sending buffer index and size.
*
* NOTE:
* If nvs_chim_idx is set to NVS_CHIM_IDX_INVALID
* and nvs_chim_sz is set to 0, then chimney sending
* buffer is _not_ used by this RNDIS message.
*/
uint32_t chim_idx;
uint32_t chim_sz;
uint8_t rsvd[24];
} __rte_packed;
struct hn_nvs_rndis_ack {
uint32_t type; /* NVS_TYPE_RNDIS_ACK */
uint32_t status; /* NVS_STATUS_ */
uint8_t rsvd[32];
} __rte_packed;
int hn_nvs_attach(struct hn_data *hv, unsigned int mtu);
void hn_nvs_detach(struct hn_data *hv);
void hn_nvs_ack_rxbuf(struct vmbus_channel *chan, uint64_t tid);
int hn_nvs_alloc_subchans(struct hn_data *hv, uint32_t *nsubch);
void hn_nvs_set_datapath(struct hn_data *hv, uint32_t path);
static inline int
hn_nvs_send(struct vmbus_channel *chan, uint16_t flags,
void *nvs_msg, int nvs_msglen, uintptr_t sndc,
bool *need_sig)
{
return rte_vmbus_chan_send(chan, VMBUS_CHANPKT_TYPE_INBAND,
nvs_msg, nvs_msglen, (uint64_t)sndc,
flags, need_sig);
}
static inline int
hn_nvs_send_sglist(struct vmbus_channel *chan,
struct vmbus_gpa sg[], unsigned int sglen,
void *nvs_msg, int nvs_msglen,
uintptr_t sndc, bool *need_sig)
{
return rte_vmbus_chan_send_sglist(chan, sg, sglen, nvs_msg, nvs_msglen,
(uint64_t)sndc, need_sig);
}
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