1 /*- 2 * Copyright (c) 2016 Microsoft Corp. 3 * All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 8 * 1. Redistributions of source code must retain the above copyright 9 * notice unmodified, this list of conditions, and the following 10 * disclaimer. 11 * 2. Redistributions in binary form must reproduce the above copyright 12 * notice, this list of conditions and the following disclaimer in the 13 * documentation and/or other materials provided with the distribution. 14 * 15 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 16 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 17 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 18 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 19 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 20 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 21 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 22 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 23 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 24 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 25 * 26 * $FreeBSD$ 27 */ 28 29 #ifndef _IF_HNVAR_H_ 30 #define _IF_HNVAR_H_ 31 32 #include <sys/param.h> 33 34 #include <dev/hyperv/include/vmbus.h> 35 #include <dev/hyperv/netvsc/if_hnreg.h> 36 37 struct hn_softc; 38 39 struct vmbus_channel; 40 struct hn_send_ctx; 41 42 typedef void (*hn_sent_callback_t) 43 (struct hn_send_ctx *, struct hn_softc *, 44 struct vmbus_channel *, const void *, int); 45 46 struct hn_send_ctx { 47 hn_sent_callback_t hn_cb; 48 void *hn_cbarg; 49 uint32_t hn_chim_idx; 50 int hn_chim_sz; 51 }; 52 53 struct rndis_hash_info; 54 struct rndix_hash_value; 55 struct ndis_8021q_info_; 56 struct rndis_tcp_ip_csum_info_; 57 58 #define HN_NDIS_VLAN_INFO_INVALID 0xffffffff 59 #define HN_NDIS_RXCSUM_INFO_INVALID 0 60 #define HN_NDIS_HASH_INFO_INVALID 0 61 62 struct hn_recvinfo { 63 uint32_t vlan_info; 64 uint32_t csum_info; 65 uint32_t hash_info; 66 uint32_t hash_value; 67 }; 68 69 #define HN_SEND_CTX_INITIALIZER(cb, cbarg) \ 70 { \ 71 .hn_cb = cb, \ 72 .hn_cbarg = cbarg, \ 73 .hn_chim_idx = HN_NVS_CHIM_IDX_INVALID, \ 74 .hn_chim_sz = 0 \ 75 } 76 77 static __inline void 78 hn_send_ctx_init(struct hn_send_ctx *sndc, hn_sent_callback_t cb, 79 void *cbarg, uint32_t chim_idx, int chim_sz) 80 { 81 82 sndc->hn_cb = cb; 83 sndc->hn_cbarg = cbarg; 84 sndc->hn_chim_idx = chim_idx; 85 sndc->hn_chim_sz = chim_sz; 86 } 87 88 static __inline void 89 hn_send_ctx_init_simple(struct hn_send_ctx *sndc, hn_sent_callback_t cb, 90 void *cbarg) 91 { 92 93 hn_send_ctx_init(sndc, cb, cbarg, HN_NVS_CHIM_IDX_INVALID, 0); 94 } 95 96 static __inline int 97 hn_nvs_send(struct vmbus_channel *chan, uint16_t flags, 98 void *nvs_msg, int nvs_msglen, struct hn_send_ctx *sndc) 99 { 100 101 return (vmbus_chan_send(chan, VMBUS_CHANPKT_TYPE_INBAND, flags, 102 nvs_msg, nvs_msglen, (uint64_t)(uintptr_t)sndc)); 103 } 104 105 static __inline int 106 hn_nvs_send_sglist(struct vmbus_channel *chan, struct vmbus_gpa sg[], int sglen, 107 void *nvs_msg, int nvs_msglen, struct hn_send_ctx *sndc) 108 { 109 110 return (vmbus_chan_send_sglist(chan, sg, sglen, nvs_msg, nvs_msglen, 111 (uint64_t)(uintptr_t)sndc)); 112 } 113 114 struct vmbus_xact; 115 116 const void *hn_nvs_xact_execute(struct hn_softc *sc, 117 struct vmbus_xact *xact, void *req, int reqlen, 118 size_t *resp_len, uint32_t type); 119 void hn_nvs_sent_xact(struct hn_send_ctx *sndc, struct hn_softc *sc, 120 struct vmbus_channel *chan, const void *data, int dlen); 121 uint32_t hn_chim_alloc(struct hn_softc *sc); 122 void hn_chim_free(struct hn_softc *sc, uint32_t chim_idx); 123 124 extern struct hn_send_ctx hn_send_ctx_none; 125 126 #endif /* !_IF_HNVAR_H_ */ 127