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/*
* Copyright (c) 2019 Nutanix Inc. All rights reserved.
*
* Authors: Thanos Makatos <thanos@nutanix.com>
* Swapnil Ingle <swapnil.ingle@nutanix.com>
* Felipe Franciosi <felipe@nutanix.com>
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* * Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* * Neither the name of Nutanix nor the names of its contributors may be
* used to endorse or promote products derived from this software without
* specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL <COPYRIGHT HOLDER> BE LIABLE FOR ANY
* DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH
* DAMAGE.
*
*/
#ifndef MUSER_PRIV_H
#define MUSER_PRIV_H
#include "dma.h"
#ifdef LM_VERBOSE_LOGGING
void
dump_buffer(const char *prefix, const char *buf, uint32_t count);
#else
#define dump_buffer(prefix, buf, count)
#endif
struct transport_ops {
int (*init)(lm_ctx_t*);
int (*attach)(lm_ctx_t*);
int(*detach)(lm_ctx_t*);
int (*get_request)(lm_ctx_t*, struct vfio_user_header*, int *fds, int *nr_fds);
};
typedef enum {
IRQ_NONE = 0,
IRQ_INTX,
IRQ_MSI,
IRQ_MSIX,
} irq_type_t;
typedef struct {
irq_type_t type; /* irq type this device is using */
int err_efd; /* eventfd for irq err */
int req_efd; /* eventfd for irq req */
uint32_t max_ivs; /* maximum number of ivs supported */
int efds[0]; /* XXX must be last */
} lm_irqs_t;
struct migration;
struct lm_ctx {
void *pvt;
dma_controller_t *dma;
int fd;
int conn_fd;
int (*reset) (void *pvt);
lm_log_lvl_t log_lvl;
lm_log_fn_t *log;
uint32_t irq_count[LM_DEV_NUM_IRQS];
size_t nr_regions;
lm_reg_info_t *reg_info;
lm_pci_config_space_t *pci_config_space;
struct transport_ops *trans;
struct caps *caps;
uint64_t flags;
char *uuid;
void (*map_dma) (void *pvt, uint64_t iova, uint64_t len);
int (*unmap_dma) (void *pvt, uint64_t iova);
/* TODO there should be a void * variable to store transport-specific stuff */
/* LM_TRANS_SOCK */
int sock_flags;
int client_max_fds;
lm_reg_info_t *migr_reg;
struct migration *migration;
lm_irqs_t irqs; /* XXX must be last */
};
int
muser_pci_hdr_access(lm_ctx_t *lm_ctx, uint32_t *count,
uint64_t *pos, bool write, char *buf);
lm_reg_info_t *
lm_get_region_info(lm_ctx_t *lm_ctx);
uint64_t
region_to_offset(uint32_t region);
/* FIXME copied from include/linux/stddef.h, is this OK license-wise? */
#define sizeof_field(TYPE, MEMBER) sizeof((((TYPE *)0)->MEMBER))
#define offsetofend(TYPE, MEMBER) \
(offsetof(TYPE, MEMBER) + sizeof_field(TYPE, MEMBER))
static inline ssize_t get_minsz(unsigned int cmd)
{
switch (cmd) {
case VFIO_DEVICE_GET_INFO:
return offsetofend(struct vfio_device_info, num_irqs);
case VFIO_DEVICE_GET_REGION_INFO:
return offsetofend(struct vfio_region_info, offset);
case VFIO_DEVICE_GET_IRQ_INFO:
return offsetofend(struct vfio_irq_info, count);
case VFIO_DEVICE_SET_IRQS:
return offsetofend(struct vfio_irq_set, count);
case VFIO_GROUP_GET_STATUS:
return offsetofend(struct vfio_group_status, flags);
case VFIO_GET_API_VERSION:
return 0;
case VFIO_CHECK_EXTENSION:
case VFIO_GROUP_SET_CONTAINER:
case VFIO_GROUP_UNSET_CONTAINER:
case VFIO_SET_IOMMU:
return sizeof(int);
case VFIO_IOMMU_GET_INFO:
return offsetofend(struct vfio_iommu_type1_info, iova_pgsizes);
case VFIO_IOMMU_MAP_DMA:
return offsetofend(struct vfio_iommu_type1_dma_map, size);
case VFIO_IOMMU_UNMAP_DMA:
return offsetofend(struct vfio_iommu_type1_dma_unmap, size);
case VFIO_GROUP_GET_DEVICE_FD:
case VFIO_DEVICE_RESET:
return 0;
}
return -EOPNOTSUPP;
}
static inline const char* vfio_cmd_to_str(int cmd) {
switch (cmd) {
case VFIO_GET_API_VERSION: return "VFIO_GET_API_VERSION";
case VFIO_CHECK_EXTENSION: return "VFIO_CHECK_EXTENSION";
case VFIO_SET_IOMMU: return "VFIO_SET_IOMMU";
case VFIO_GROUP_GET_STATUS: return "VFIO_GROUP_GET_STATUS";
case VFIO_GROUP_SET_CONTAINER: return "VFIO_GROUP_SET_CONTAINER";
case VFIO_GROUP_UNSET_CONTAINER: return "VFIO_GROUP_UNSET_CONTAINER";
case VFIO_GROUP_GET_DEVICE_FD: return "VFIO_GROUP_GET_DEVICE_FD";
case VFIO_DEVICE_GET_INFO: return "VFIO_DEVICE_GET_INFO";
case VFIO_DEVICE_GET_REGION_INFO: return "VFIO_DEVICE_GET_REGION_INFO";
case VFIO_DEVICE_GET_IRQ_INFO: return "VFIO_DEVICE_GET_IRQ_INFO";
case VFIO_DEVICE_SET_IRQS: return "VFIO_DEVICE_SET_IRQS";
case VFIO_DEVICE_RESET: return "VFIO_DEVICE_RESET";
case VFIO_IOMMU_GET_INFO: return "VFIO_IOMMU_GET_INFO/VFIO_DEVICE_GET_PCI_HOT_RESET_INFO/VFIO_IOMMU_SPAPR_TCE_GET_INFO";
case VFIO_IOMMU_MAP_DMA: return "VFIO_IOMMU_MAP_DMA/VFIO_DEVICE_PCI_HOT_RESET";
case VFIO_IOMMU_UNMAP_DMA: return "VFIO_IOMMU_UNMAP_DMA";
case VFIO_IOMMU_ENABLE: return "VFIO_IOMMU_ENABLE";
case VFIO_IOMMU_DISABLE: return "VFIO_IOMMU_DISABLE";
case VFIO_EEH_PE_OP: return "VFIO_EEH_PE_OP";
case VFIO_IOMMU_SPAPR_REGISTER_MEMORY: return "VFIO_IOMMU_SPAPR_REGISTER_MEMORY";
case VFIO_IOMMU_SPAPR_UNREGISTER_MEMORY: return "VFIO_IOMMU_SPAPR_UNREGISTER_MEMORY";
case VFIO_IOMMU_SPAPR_TCE_CREATE: return "VFIO_IOMMU_SPAPR_TCE_CREATE";
case VFIO_IOMMU_SPAPR_TCE_REMOVE: return "VFIO_IOMMU_SPAPR_TCE_REMOVE";
}
return NULL;
}
#endif /* MUSER_PRIV_H */
/* ex: set tabstop=4 shiftwidth=4 softtabstop=4 expandtab: */
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