break;
len = (tag[2] << 8) | tag[1];
- vec_validate (data, len);
+ vec_alloc (data, len);
if (read (fd, data, len) != len)
{
if (ifr.ifr_flags & IFF_UP)
{
- error = clib_error_return (0, "Skipping PCI device %U as host "
- "interface %s is up",
- format_vlib_pci_addr, addr, e->d_name);
+ vlib_log (VLIB_LOG_LEVEL_WARNING, pci_main.log_default,
+ "Skipping PCI device %U as host "
+ "interface %s is up", format_vlib_pci_addr, addr,
+ e->d_name);
close (fd);
goto done;
}
VFIO_IRQ_SET_ACTION_TRIGGER, fds);
}
+uword
+vlib_pci_get_msix_file_index (vlib_main_t * vm, vlib_pci_dev_handle_t h,
+ u16 index)
+{
+ linux_pci_device_t *p = linux_pci_get_device (h);
+ linux_pci_irq_t *irq = vec_elt_at_index (p->msix_irqs, index);
+ if (irq->fd == -1)
+ return ~0;
+ return irq->clib_file_index;
+}
+
clib_error_t *
vlib_pci_disable_msix_irq (vlib_main_t * vm, vlib_pci_dev_handle_t h,
u16 start, u16 count)
goto error;
}
- pci_log_debug (vm, p, "%s region_info index:%u size:0x%lx offset:0x%lx "
- "flags: %s%s%s(0x%x)", __func__,
- reg.index, reg.size, reg.offset,
- reg.flags & VFIO_REGION_INFO_FLAG_READ ? "rd " : "",
- reg.flags & VFIO_REGION_INFO_FLAG_WRITE ? "wr " : "",
- reg.flags & VFIO_REGION_INFO_FLAG_MMAP ? "mmap " : "",
- reg.flags);
+ pci_log_debug (vm, p, "%s %U", __func__, format_vfio_region_info, ®);
p->config_offset = reg.offset;
p->config_fd = p->fd;
}
else if (p->type == LINUX_PCI_DEVICE_TYPE_VFIO)
{
- struct vfio_region_info reg = { 0 };
- reg.argsz = sizeof (struct vfio_region_info);
- reg.index = bar;
- if (ioctl (p->fd, VFIO_DEVICE_GET_REGION_INFO, ®) < 0)
+ struct vfio_region_info *r;
+ u32 sz = sizeof (struct vfio_region_info);
+ again:
+ r = clib_mem_alloc (sz);
+ clib_memset (r, 0, sz);
+ r->argsz = sz;
+ r->index = bar;
+ if (ioctl (p->fd, VFIO_DEVICE_GET_REGION_INFO, r) < 0)
return clib_error_return_unix (0, "ioctl(VFIO_DEVICE_GET_INFO) "
"'%U'", format_vlib_pci_addr,
&p->addr);
+ if (sz != r->argsz)
+ {
+ sz = r->argsz;
+ clib_mem_free (r);
+ goto again;
+ }
_fd = p->fd;
- _size = reg.size;
- _offset = reg.offset;
- pci_log_debug (vm, p, "%s region_info index:%u size:0x%lx offset:0x%lx "
- "flags: %s%s%s(0x%x)", __func__,
- reg.index, reg.size, reg.offset,
- reg.flags & VFIO_REGION_INFO_FLAG_READ ? "rd " : "",
- reg.flags & VFIO_REGION_INFO_FLAG_WRITE ? "wr " : "",
- reg.flags & VFIO_REGION_INFO_FLAG_MMAP ? "mmap " : "",
- reg.flags);
+ _size = r->size;
+ _offset = r->offset;
+ pci_log_debug (vm, p, "%s %U", __func__, format_vfio_region_info, r);
+ clib_mem_free (r);
}
else
ASSERT (0);
clib_error_t *error;
int flags = MAP_SHARED;
u64 size = 0, offset = 0;
+ u16 command;
pci_log_debug (vm, p, "map region %u to va %p", bar, addr);
+ if ((error = vlib_pci_read_config_u16 (vm, h, 4, &command)))
+ return error;
+
+ if (!(command & PCI_COMMAND_MEMORY))
+ {
+ pci_log_debug (vm, p, "setting memory enable bit");
+ command |= PCI_COMMAND_MEMORY;
+ if ((error = vlib_pci_write_config_u16 (vm, h, 4, &command)))
+ return error;
+ }
+
if ((error = vlib_pci_region (vm, h, bar, &fd, &size, &offset)))
return error;
if (p->type == LINUX_PCI_DEVICE_TYPE_UIO && addr != 0)
flags |= MAP_FIXED;
- *result = mmap (addr, size, PROT_READ | PROT_WRITE, flags, fd, offset);
- if (*result == (void *) -1)
+ *result = clib_mem_vm_map_shared (addr, size, fd, offset,
+ "PCIe %U region %u", format_vlib_pci_addr,
+ vlib_pci_get_addr (vm, h), bar);
+ if (*result == CLIB_MEM_VM_MAP_FAILED)
{
error = clib_error_return_unix (0, "mmap `BAR%u'", bar);
if (p->type == LINUX_PCI_DEVICE_TYPE_UIO && (fd != -1))
{
if (res->size == 0)
continue;
- munmap (res->addr, res->size);
+ clib_mem_vm_unmap (res->addr);
if (res->fd != -1)
close (res->fd);
}