linux_pci_device_type_t type;
vlib_pci_dev_handle_t handle;
vlib_pci_addr_t addr;
+ u32 numa_node;
/* Resource file descriptors. */
linux_pci_region_t *regions;
/* Device File descriptor */
int fd;
+ /* read/write file descriptor for io bar */
+ int io_fd;
+ u64 io_offset;
+
/* Minor device for uio device. */
u32 uio_minor;
return &d->addr;
}
+u32
+vlib_pci_get_numa_node (vlib_main_t * vm, vlib_pci_dev_handle_t h)
+{
+ linux_pci_device_t *d = linux_pci_get_device (h);
+ return d->numa_node;
+}
+
/* Call to allocate/initialize the pci subsystem.
This is not an init function so that users can explicitly enable
pci only when it's needed. */
int fd;
di = clib_mem_alloc (sizeof (vlib_pci_device_info_t));
- memset (di, 0, sizeof (vlib_pci_device_info_t));
+ clib_memset (di, 0, sizeof (vlib_pci_device_info_t));
di->addr.as_u32 = addr->as_u32;
u8 *dev_dir_name = format (0, "%s/%U", sysfs_pci_dev_path,
{
static pci_config_header_t all_ones;
if (all_ones.vendor_id == 0)
- memset (&all_ones, ~0, sizeof (all_ones));
+ clib_memset (&all_ones, ~0, sizeof (all_ones));
if (!memcmp (&di->config0.header, &all_ones, sizeof (all_ones)))
{
if (e->d_name[0] == '.') /* skip . and .. */
continue;
- memset (&ifr, 0, sizeof ifr);
- memset (&drvinfo, 0, sizeof drvinfo);
+ clib_memset (&ifr, 0, sizeof ifr);
+ clib_memset (&drvinfo, 0, sizeof drvinfo);
ifr.ifr_data = (char *) &drvinfo;
strncpy (ifr.ifr_name, e->d_name, sizeof (ifr.ifr_name));
ifr.ifr_name[ARRAY_LEN (ifr.ifr_name) - 1] = '\0';
if (strcmp ((char *) s, drvinfo.bus_info))
continue;
- memset (&ifr, 0, sizeof (ifr));
+ clib_memset (&ifr, 0, sizeof (ifr));
strncpy (ifr.ifr_name, e->d_name, sizeof (ifr.ifr_name));
ifr.ifr_name[ARRAY_LEN (ifr.ifr_name) - 1] = '\0';
if (ioctl (fd, SIOCGIFFLAGS, &ifr) < 0)
if (efds)
{
flags |= VFIO_IRQ_SET_DATA_EVENTFD;
- clib_memcpy (&irq_set->data, efds, data_len);
+ clib_memcpy_fast (&irq_set->data, efds, data_len);
}
else
flags |= VFIO_IRQ_SET_DATA_NONE;
linux_pci_vfio_unmask_intx (vm, p);
}
+ if (p->supports_va_dma)
+ {
+ vlib_buffer_pool_t *bp;
+ /* *INDENT-OFF* */
+ vec_foreach (bp, buffer_main.buffer_pools)
+ {
+ u32 i;
+ vlib_physmem_map_t *pm;
+ pm = vlib_physmem_get_map (vm, bp->physmem_map_index);
+ for (i = 0; i < pm->n_pages; i++)
+ vfio_map_physmem_page (vm, pm->base + (i << pm->log2_page_size));
+ }
+ /* *INDENT-ON* */
+ }
+
if (r && r->init_function)
err = r->init_function (lpm->vlib_main, p->handle);
}
static clib_error_t *
-vlib_pci_map_region_int (vlib_main_t * vm, vlib_pci_dev_handle_t h,
- u32 bar, u8 * addr, void **result)
+vlib_pci_region (vlib_main_t * vm, vlib_pci_dev_handle_t h, u32 bar, int *fd,
+ u64 * size, u64 * offset)
{
linux_pci_device_t *p = linux_pci_get_device (h);
- int fd = -1;
- clib_error_t *error;
- int flags = MAP_SHARED;
- u64 size = 0, offset = 0;
+ clib_error_t *error = 0;
+ int _fd = -1;
+ u64 _size = 0, _offset = 0;
ASSERT (bar <= 5);
error = 0;
- pci_log_debug (vm, p, "map region %u to va %p", bar, addr);
-
if (p->type == LINUX_PCI_DEVICE_TYPE_UIO)
{
u8 *file_name;
file_name = format (0, "%s/%U/resource%d%c", sysfs_pci_dev_path,
format_vlib_pci_addr, &p->addr, bar, 0);
- fd = open ((char *) file_name, O_RDWR);
- if (fd < 0)
+ _fd = open ((char *) file_name, O_RDWR);
+ if (_fd < 0)
{
error = clib_error_return_unix (0, "open `%s'", file_name);
vec_free (file_name);
return error;
}
- if (fstat (fd, &stat_buf) < 0)
+ if (fstat (_fd, &stat_buf) < 0)
{
error = clib_error_return_unix (0, "fstat `%s'", file_name);
vec_free (file_name);
- close (fd);
+ close (_fd);
return error;
}
vec_free (file_name);
- if (addr != 0)
- flags |= MAP_FIXED;
- size = stat_buf.st_size;
- offset = 0;
+ _size = stat_buf.st_size;
+ _offset = 0;
}
else if (p->type == LINUX_PCI_DEVICE_TYPE_VFIO)
{
return clib_error_return_unix (0, "ioctl(VFIO_DEVICE_GET_INFO) "
"'%U'", format_vlib_pci_addr,
&p->addr);
- fd = p->fd;
- size = reg.size;
- offset = reg.offset;
+ _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,
else
ASSERT (0);
+ *fd = _fd;
+ *size = _size;
+ *offset = _offset;
+
+ return error;
+}
+
+static clib_error_t *
+vlib_pci_map_region_int (vlib_main_t * vm, vlib_pci_dev_handle_t h,
+ u32 bar, u8 * addr, void **result)
+{
+ linux_pci_device_t *p = linux_pci_get_device (h);
+ int fd = -1;
+ clib_error_t *error;
+ int flags = MAP_SHARED;
+ u64 size = 0, offset = 0;
+
+ pci_log_debug (vm, p, "map region %u to va %p", bar, addr);
+
+ 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)
{
return (vlib_pci_map_region_int (vm, h, resource, addr, result));
}
+clib_error_t *
+vlib_pci_io_region (vlib_main_t * vm, vlib_pci_dev_handle_t h, u32 resource)
+{
+ linux_pci_device_t *p = linux_pci_get_device (h);
+ clib_error_t *error = 0;
+ int fd = -1;
+ u64 size = 0, offset = 0;
+
+ if ((error = vlib_pci_region (vm, h, resource, &fd, &size, &offset)))
+ return error;
+
+ p->io_fd = fd;
+ p->io_offset = offset;
+ return error;
+}
+
+clib_error_t *
+vlib_pci_read_write_io (vlib_main_t * vm, vlib_pci_dev_handle_t h,
+ vlib_read_or_write_t read_or_write,
+ uword offset, void *data, u32 length)
+{
+ linux_pci_device_t *p = linux_pci_get_device (h);
+ int n = 0;
+
+ if (read_or_write == VLIB_READ)
+ n = pread (p->io_fd, data, length, p->io_offset + offset);
+ else
+ n = pwrite (p->io_fd, data, length, p->io_offset + offset);
+
+ if (n != length)
+ return clib_error_return_unix (0, "%s",
+ read_or_write == VLIB_READ
+ ? "read" : "write");
+ return 0;
+}
+
+clib_error_t *
+vlib_pci_map_dma (vlib_main_t * vm, vlib_pci_dev_handle_t h, void *ptr)
+{
+ linux_pci_device_t *p = linux_pci_get_device (h);
+
+ if (!p->supports_va_dma)
+ return 0;
+
+ return vfio_map_physmem_page (vm, ptr);
+}
+
+int
+vlib_pci_supports_virtual_addr_dma (vlib_main_t * vm, vlib_pci_dev_handle_t h)
+{
+ linux_pci_device_t *p = linux_pci_get_device (h);
+
+ return p->supports_va_dma != 0;
+}
+
clib_error_t *
vlib_pci_device_open (vlib_main_t * vm, vlib_pci_addr_t * addr,
pci_device_id_t ids[], vlib_pci_dev_handle_t * handle)
p->handle = p - lpm->linux_pci_devices;
p->addr.as_u32 = di->addr.as_u32;
p->intx_irq.fd = -1;
+ p->numa_node = di->numa_node;
+ /*
+ * pci io bar read/write fd
+ */
+ p->io_fd = -1;
pci_log_debug (vm, p, "open vid:0x%04x did:0x%04x driver:%s iommu_group:%d",
di->vendor_id, di->device_id, di->driver_name,
if (err)
{
pci_log_err (vm, p, "%U", format_clib_error, err);
- memset (p, 0, sizeof (linux_pci_device_t));
+ clib_memset (p, 0, sizeof (linux_pci_device_t));
pool_put (lpm->linux_pci_devices, p);
}
irq = &p->intx_irq;
clib_file_del_by_index (&file_main, irq->clib_file_index);
close (p->config_fd);
+ if (p->io_fd != -1)
+ close (p->io_fd);
}
else if (p->type == LINUX_PCI_DEVICE_TYPE_VFIO)
{
vec_free (p->regions);
close (p->fd);
- memset (p, 0, sizeof (linux_pci_device_t));
+ clib_memset (p, 0, sizeof (linux_pci_device_t));
pool_put (lpm->linux_pci_devices, p);
}
}
/* No driver, close the PCI config-space FD */
- memset (p, 0, sizeof (linux_pci_device_t));
+ clib_memset (p, 0, sizeof (linux_pci_device_t));
pool_put (lpm->linux_pci_devices, p);
}
Code Review / vpp.git / blobdiff