diff options
Diffstat (limited to 'drivers/net/netvsc/hn_nvs.h')
| -rw-r--r-- | drivers/net/netvsc/hn_nvs.h | 229 |
1 files changed, 229 insertions, 0 deletions
diff --git a/drivers/net/netvsc/hn_nvs.h b/drivers/net/netvsc/hn_nvs.h new file mode 100644 index 00000000..984a9c11 --- /dev/null +++ b/drivers/net/netvsc/hn_nvs.h @@ -0,0 +1,229 @@ +/* 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); +} |