| virtio.h (256281) | virtio.h (267393) |
|---|---|
| 1/*- 2 * Copyright (c) 2013 Chris Torek <torek @ torek net> 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 unchanged lines hidden (view full) --- 18 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 19 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 20 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 21 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 22 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 23 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 24 * SUCH DAMAGE. 25 * | 1/*- 2 * Copyright (c) 2013 Chris Torek <torek @ torek net> 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 unchanged lines hidden (view full) --- 18 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 19 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 20 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 21 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 22 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 23 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 24 * SUCH DAMAGE. 25 * |
| 26 * $FreeBSD: stable/10/usr.sbin/bhyve/virtio.h 253440 2013-07-17 23:37:33Z grehan $ | 26 * $FreeBSD: stable/10/usr.sbin/bhyve/virtio.h 267393 2014-06-12 13:13:15Z jhb $ |
| 27 */ 28 29#ifndef _VIRTIO_H_ 30#define _VIRTIO_H_ 31 32/* 33 * These are derived from several virtio specifications. 34 * --- 288 unchanged lines hidden (view full) --- 323 uint32_t vs_negotiated_caps; /* negotiated capabilities */ 324 struct vqueue_info *vs_queues; /* one per vc_nvq */ 325 int vs_curq; /* current queue */ 326 uint8_t vs_status; /* value from last status write */ 327 uint8_t vs_isr; /* ISR flags, if not MSI-X */ 328 uint16_t vs_msix_cfg_idx; /* MSI-X vector for config event */ 329}; 330 | 27 */ 28 29#ifndef _VIRTIO_H_ 30#define _VIRTIO_H_ 31 32/* 33 * These are derived from several virtio specifications. 34 * --- 288 unchanged lines hidden (view full) --- 323 uint32_t vs_negotiated_caps; /* negotiated capabilities */ 324 struct vqueue_info *vs_queues; /* one per vc_nvq */ 325 int vs_curq; /* current queue */ 326 uint8_t vs_status; /* value from last status write */ 327 uint8_t vs_isr; /* ISR flags, if not MSI-X */ 328 uint16_t vs_msix_cfg_idx; /* MSI-X vector for config event */ 329}; 330 |
| 331#define VS_LOCK(vs) \ 332do { \ 333 if (vs->vs_mtx) \ 334 pthread_mutex_lock(vs->vs_mtx); \ 335} while (0) 336 337#define VS_UNLOCK(vs) \ 338do { \ 339 if (vs->vs_mtx) \ 340 pthread_mutex_unlock(vs->vs_mtx); \ 341} while (0) 342 |
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| 331struct virtio_consts { 332 const char *vc_name; /* name of driver (for diagnostics) */ 333 int vc_nvq; /* number of virtual queues */ 334 size_t vc_cfgsize; /* size of dev-specific config regs */ 335 void (*vc_reset)(void *); /* called on virtual device reset */ 336 void (*vc_qnotify)(void *, struct vqueue_info *); 337 /* called on QNOTIFY if no VQ notify */ 338 int (*vc_cfgread)(void *, int, int, uint32_t *); --- 87 unchanged lines hidden (view full) --- 426/* 427 * Deliver an interrupt to guest on the given virtual queue 428 * (if possible, or a generic MSI interrupt if not using MSI-X). 429 */ 430static inline void 431vq_interrupt(struct virtio_softc *vs, struct vqueue_info *vq) 432{ 433 | 343struct virtio_consts { 344 const char *vc_name; /* name of driver (for diagnostics) */ 345 int vc_nvq; /* number of virtual queues */ 346 size_t vc_cfgsize; /* size of dev-specific config regs */ 347 void (*vc_reset)(void *); /* called on virtual device reset */ 348 void (*vc_qnotify)(void *, struct vqueue_info *); 349 /* called on QNOTIFY if no VQ notify */ 350 int (*vc_cfgread)(void *, int, int, uint32_t *); --- 87 unchanged lines hidden (view full) --- 438/* 439 * Deliver an interrupt to guest on the given virtual queue 440 * (if possible, or a generic MSI interrupt if not using MSI-X). 441 */ 442static inline void 443vq_interrupt(struct virtio_softc *vs, struct vqueue_info *vq) 444{ 445 |
| 434 if (vs->vs_flags & VIRTIO_USE_MSIX) | 446 if (pci_msix_enabled(vs->vs_pi)) |
| 435 pci_generate_msix(vs->vs_pi, vq->vq_msix_idx); 436 else { | 447 pci_generate_msix(vs->vs_pi, vq->vq_msix_idx); 448 else { |
| 449 VS_LOCK(vs); |
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| 437 vs->vs_isr |= VTCFG_ISR_QUEUES; 438 pci_generate_msi(vs->vs_pi, 0); | 450 vs->vs_isr |= VTCFG_ISR_QUEUES; 451 pci_generate_msi(vs->vs_pi, 0); |
| 452 pci_lintr_assert(vs->vs_pi); 453 VS_UNLOCK(vs); |
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| 439 } 440} 441 442struct iovec; 443void vi_softc_linkup(struct virtio_softc *vs, struct virtio_consts *vc, 444 void *dev_softc, struct pci_devinst *pi, 445 struct vqueue_info *queues); 446int vi_intr_init(struct virtio_softc *vs, int barnum, int use_msix); --- 13 unchanged lines hidden --- | 454 } 455} 456 457struct iovec; 458void vi_softc_linkup(struct virtio_softc *vs, struct virtio_consts *vc, 459 void *dev_softc, struct pci_devinst *pi, 460 struct vqueue_info *queues); 461int vi_intr_init(struct virtio_softc *vs, int barnum, int use_msix); --- 13 unchanged lines hidden --- |