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 #include <dev/hyperv/netvsc/hv_net_vsc.h> 34 35 struct netvsc_dev_; 36 struct nvsp_msg_; 37 38 struct vmbus_channel; 39 struct hn_send_ctx; 40 41 typedef void (*hn_sent_callback_t) 42 (struct hn_send_ctx *, struct netvsc_dev_ *, 43 struct vmbus_channel *, const struct nvsp_msg_ *, int); 44 45 struct hn_send_ctx { 46 hn_sent_callback_t hn_cb; 47 void *hn_cbarg; 48 uint32_t hn_chim_idx; 49 int hn_chim_sz; 50 }; 51 52 #define HN_SEND_CTX_INITIALIZER(cb, cbarg) \ 53 { \ 54 .hn_cb = cb, \ 55 .hn_cbarg = cbarg, \ 56 .hn_chim_idx = NVSP_1_CHIMNEY_SEND_INVALID_SECTION_INDEX, \ 57 .hn_chim_sz = 0 \ 58 } 59 60 static __inline void 61 hn_send_ctx_init(struct hn_send_ctx *sndc, hn_sent_callback_t cb, 62 void *cbarg, uint32_t chim_idx, int chim_sz) 63 { 64 sndc->hn_cb = cb; 65 sndc->hn_cbarg = cbarg; 66 sndc->hn_chim_idx = chim_idx; 67 sndc->hn_chim_sz = chim_sz; 68 } 69 70 static __inline void 71 hn_send_ctx_init_simple(struct hn_send_ctx *sndc, hn_sent_callback_t cb, 72 void *cbarg) 73 { 74 hn_send_ctx_init(sndc, cb, cbarg, 75 NVSP_1_CHIMNEY_SEND_INVALID_SECTION_INDEX, 0); 76 } 77 78 void hn_nvs_sent_wakeup(struct hn_send_ctx *sndc, 79 struct netvsc_dev_ *net_dev, struct vmbus_channel *chan, 80 const struct nvsp_msg_ *msg, int dlen); 81 void hn_chim_free(struct netvsc_dev_ *net_dev, uint32_t chim_idx); 82 83 #endif /* !_IF_HNVAR_H_ */ 84