#define PCI_MSIX_ENABLE 0x8000
-#define PCI_CONFIG_SIZE(vif) ((vif->msix_enabled == VIRTIO_MSIX_ENABLED) ? \
- 24 : 20)
-
static pci_device_id_t virtio_pci_device_ids[] = {
{
.vendor_id = PCI_VENDOR_ID_VIRTIO,
{0},
};
-static void
-virtio_pci_legacy_read_config (vlib_main_t * vm, virtio_if_t * vif, void *dst,
- int len, u32 addr)
-{
- u32 size = 0;
- vlib_pci_dev_handle_t h = vif->pci_dev_handle;
-
- while (len > 0)
- {
- if (len >= 4)
- {
- size = 4;
- vlib_pci_read_io_u32 (vm, h, PCI_CONFIG_SIZE (vif) + addr, dst);
- }
- else if (len >= 2)
- {
- size = 2;
- vlib_pci_read_io_u16 (vm, h, PCI_CONFIG_SIZE (vif) + addr, dst);
- }
- else
- {
- size = 1;
- vlib_pci_read_io_u8 (vm, h, PCI_CONFIG_SIZE (vif) + addr, dst);
- }
- dst = (u8 *) dst + size;
- addr += size;
- len -= size;
- }
-}
-
-static void
-virtio_pci_legacy_write_config (vlib_main_t * vm, virtio_if_t * vif,
- void *src, int len, u32 addr)
-{
- u32 size = 0;
- vlib_pci_dev_handle_t h = vif->pci_dev_handle;
-
- while (len > 0)
- {
- if (len >= 4)
- {
- size = 4;
- vlib_pci_write_io_u32 (vm, h, PCI_CONFIG_SIZE (vif) + addr, src);
- }
- else if (len >= 2)
- {
- size = 2;
- vlib_pci_write_io_u16 (vm, h, PCI_CONFIG_SIZE (vif) + addr, src);
- }
- else
- {
- size = 1;
- vlib_pci_write_io_u8 (vm, h, PCI_CONFIG_SIZE (vif) + addr, src);
- }
- src = (u8 *) src + size;
- addr += size;
- len -= size;
- }
-}
-
-static u64
-virtio_pci_legacy_get_host_features (vlib_main_t * vm, virtio_if_t * vif)
-{
- u32 features;
- vlib_pci_read_io_u32 (vm, vif->pci_dev_handle, VIRTIO_PCI_HOST_FEATURES,
- &features);
- return features;
-}
-
-static u32
-virtio_pci_legacy_get_guest_features (vlib_main_t * vm, virtio_if_t * vif)
-{
- u32 feature = 0;
- vlib_pci_read_io_u32 (vm, vif->pci_dev_handle, VIRTIO_PCI_GUEST_FEATURES,
- &feature);
- vif->features = feature;
- return feature;
-}
-
-static u32
-virtio_pci_legacy_set_guest_features (vlib_main_t * vm, virtio_if_t * vif,
- u64 features)
-{
- if ((features >> 32) != 0)
- {
- clib_warning ("only 32 bit features are allowed for legacy virtio!");
- }
- u32 feature = 0, guest_features = (u32) features;
- vlib_pci_write_io_u32 (vm, vif->pci_dev_handle, VIRTIO_PCI_GUEST_FEATURES,
- &guest_features);
- vlib_pci_read_io_u32 (vm, vif->pci_dev_handle, VIRTIO_PCI_GUEST_FEATURES,
- &feature);
- return feature;
-}
-
-static u8
-virtio_pci_legacy_get_status (vlib_main_t * vm, virtio_if_t * vif)
-{
- u8 status = 0;
- vlib_pci_read_io_u8 (vm, vif->pci_dev_handle, VIRTIO_PCI_STATUS, &status);
- return status;
-}
-
-static void
-virtio_pci_legacy_set_status (vlib_main_t * vm, virtio_if_t * vif, u8 status)
-{
- if (status != VIRTIO_CONFIG_STATUS_RESET)
- status |= virtio_pci_legacy_get_status (vm, vif);
- vlib_pci_write_io_u8 (vm, vif->pci_dev_handle, VIRTIO_PCI_STATUS, &status);
-}
-
-static u8
-virtio_pci_legacy_reset (vlib_main_t * vm, virtio_if_t * vif)
-{
- virtio_pci_legacy_set_status (vm, vif, VIRTIO_CONFIG_STATUS_RESET);
- return virtio_pci_legacy_get_status (vm, vif);
-}
-
-static u8
-virtio_pci_legacy_get_isr (vlib_main_t * vm, virtio_if_t * vif)
-{
- u8 isr = 0;
- vlib_pci_read_io_u8 (vm, vif->pci_dev_handle, VIRTIO_PCI_ISR, &isr);
- return isr;
-}
-
-static u16
-virtio_pci_legacy_get_queue_num (vlib_main_t * vm, virtio_if_t * vif,
- u16 queue_id)
-{
- u16 queue_num = 0;
- vlib_pci_write_io_u16 (vm, vif->pci_dev_handle, VIRTIO_PCI_QUEUE_SEL,
- &queue_id);
- vlib_pci_read_io_u16 (vm, vif->pci_dev_handle, VIRTIO_PCI_QUEUE_NUM,
- &queue_num);
- return queue_num;
-}
-
-static int
-virtio_pci_legacy_setup_queue (vlib_main_t * vm, virtio_if_t * vif,
- u16 queue_id, void *p)
-{
- u64 addr = vlib_physmem_get_pa (vm, p) >> VIRTIO_PCI_QUEUE_ADDR_SHIFT;
- u32 addr2 = 0;
- vlib_pci_write_io_u16 (vm, vif->pci_dev_handle, VIRTIO_PCI_QUEUE_SEL,
- &queue_id);
- vlib_pci_write_io_u32 (vm, vif->pci_dev_handle, VIRTIO_PCI_QUEUE_PFN,
- (u32 *) & addr);
- vlib_pci_read_io_u32 (vm, vif->pci_dev_handle, VIRTIO_PCI_QUEUE_PFN,
- &addr2);
- if ((u32) addr == addr2)
- return 0;
- return 1;
-}
-
-static void
-virtio_pci_legacy_del_queue (vlib_main_t * vm, virtio_if_t * vif,
- u16 queue_id)
-{
- u32 src = 0;
- vlib_pci_write_io_u16 (vm, vif->pci_dev_handle, VIRTIO_PCI_QUEUE_SEL,
- &queue_id);
- vlib_pci_write_io_u32 (vm, vif->pci_dev_handle, VIRTIO_PCI_QUEUE_PFN, &src);
-}
-
-inline void
-virtio_pci_legacy_notify_queue (vlib_main_t * vm, virtio_if_t * vif,
- u16 queue_id)
-{
- vlib_pci_write_io_u16 (vm, vif->pci_dev_handle, VIRTIO_PCI_QUEUE_NOTIFY,
- &queue_id);
-}
-
-/* Enable one vector (0) for Link State Intrerrupt */
-static u16
-virtio_pci_legacy_set_config_irq (vlib_main_t * vm, virtio_if_t * vif,
- u16 vec)
-{
- vlib_pci_write_io_u16 (vm, vif->pci_dev_handle, VIRTIO_MSI_CONFIG_VECTOR,
- &vec);
- vlib_pci_read_io_u16 (vm, vif->pci_dev_handle, VIRTIO_MSI_CONFIG_VECTOR,
- &vec);
- return vec;
-}
-
-static u16
-virtio_pci_legacy_set_queue_irq (vlib_main_t * vm, virtio_if_t * vif, u16 vec,
- u16 queue_id)
-{
- vlib_pci_write_io_u16 (vm, vif->pci_dev_handle, VIRTIO_PCI_QUEUE_SEL,
- &queue_id);
- vlib_pci_write_io_u16 (vm, vif->pci_dev_handle, VIRTIO_MSI_QUEUE_VECTOR,
- &vec);
- vlib_pci_read_io_u16 (vm, vif->pci_dev_handle, VIRTIO_MSI_QUEUE_VECTOR,
- &vec);
- return vec;
-}
-
static u32
virtio_pci_flag_change (vnet_main_t * vnm, vnet_hw_interface_t * hw,
u32 flags)
static clib_error_t *
virtio_pci_get_max_virtqueue_pairs (vlib_main_t * vm, virtio_if_t * vif)
{
- virtio_net_config_t config;
clib_error_t *error = 0;
u16 max_queue_pairs = 1;
if (vif->features & VIRTIO_FEATURE (VIRTIO_NET_F_MQ))
{
- virtio_pci_legacy_read_config (vm, vif, &config.max_virtqueue_pairs,
- sizeof (config.max_virtqueue_pairs),
- STRUCT_OFFSET_OF (virtio_net_config_t,
- max_virtqueue_pairs));
- max_queue_pairs = config.max_virtqueue_pairs;
+ max_queue_pairs = vif->virtio_pci_func->get_max_queue_pairs (vm, vif);
}
virtio_log_debug (vif, "max queue pair is %x", max_queue_pairs);
static void
virtio_pci_set_mac (vlib_main_t * vm, virtio_if_t * vif)
{
- virtio_pci_legacy_write_config (vm, vif, vif->mac_addr,
- sizeof (vif->mac_addr), 0);
+ if (vif->features & VIRTIO_FEATURE (VIRTIO_NET_F_MAC))
+ vif->virtio_pci_func->set_mac (vm, vif);
}
static u32
{
if (vif->features & VIRTIO_FEATURE (VIRTIO_NET_F_MAC))
{
- virtio_pci_legacy_read_config (vm, vif, vif->mac_addr,
- sizeof (vif->mac_addr), 0);
+ vif->virtio_pci_func->get_mac (vm, vif);
return 0;
}
return 1;
*/
u16 status = 1;
if (vif->features & VIRTIO_FEATURE (VIRTIO_NET_F_STATUS))
- virtio_pci_legacy_read_config (vm, vif, &status, sizeof (status), /* mac */
- STRUCT_OFFSET_OF (virtio_net_config_t,
- status));
+ status = vif->virtio_pci_func->get_device_status (vm, vif);
return status;
}
u8 isr = 0;
u16 line = 0;
- isr = virtio_pci_legacy_get_isr (vm, vif);
+ isr = vif->virtio_pci_func->get_isr (vm, vif);
/*
* If the lower bit is set: look through the used rings of
}
}
-inline void
-debug_device_config_space (vlib_main_t * vm, virtio_if_t * vif)
-{
- u32 data_u32;
- u16 data_u16;
- u8 data_u8;
- vlib_pci_read_io_u32 (vm, vif->pci_dev_handle, VIRTIO_PCI_HOST_FEATURES,
- &data_u32);
- vlib_cli_output (vm, "remote features 0x%lx", data_u32);
- vlib_pci_read_io_u32 (vm, vif->pci_dev_handle, VIRTIO_PCI_GUEST_FEATURES,
- &data_u32);
- vlib_cli_output (vm, "guest features 0x%lx", data_u32);
- vlib_pci_read_io_u32 (vm, vif->pci_dev_handle, VIRTIO_PCI_QUEUE_PFN,
- &data_u32);
- vlib_cli_output (vm, "queue address 0x%lx", data_u32);
- vlib_pci_read_io_u16 (vm, vif->pci_dev_handle, VIRTIO_PCI_QUEUE_NUM,
- &data_u16);
- vlib_cli_output (vm, "queue size 0x%x", data_u16);
- vlib_pci_read_io_u16 (vm, vif->pci_dev_handle, VIRTIO_PCI_QUEUE_SEL,
- &data_u16);
- vlib_cli_output (vm, "queue select 0x%x", data_u16);
- vlib_pci_read_io_u16 (vm, vif->pci_dev_handle, VIRTIO_PCI_QUEUE_NOTIFY,
- &data_u16);
- vlib_cli_output (vm, "queue notify 0x%x", data_u16);
- vlib_pci_read_io_u8 (vm, vif->pci_dev_handle, VIRTIO_PCI_STATUS, &data_u8);
- vlib_cli_output (vm, "status 0x%x", data_u8);
- vlib_pci_read_io_u8 (vm, vif->pci_dev_handle, VIRTIO_PCI_ISR, &data_u8);
- vlib_cli_output (vm, "isr 0x%x", data_u8);
-
- if (vif->msix_enabled == VIRTIO_MSIX_ENABLED)
- {
- vlib_pci_read_io_u16 (vm, vif->pci_dev_handle, VIRTIO_MSI_CONFIG_VECTOR,
- &data_u16);
- vlib_cli_output (vm, "config vector 0x%x", data_u16);
- u16 queue_id = 0;
- vlib_pci_write_io_u16 (vm, vif->pci_dev_handle, VIRTIO_PCI_QUEUE_SEL,
- &queue_id);
- vlib_pci_read_io_u16 (vm, vif->pci_dev_handle, VIRTIO_MSI_QUEUE_VECTOR,
- &data_u16);
- vlib_cli_output (vm, "queue vector for queue (0) 0x%x", data_u16);
- }
-
- u8 mac[6];
- virtio_pci_legacy_read_config (vm, vif, mac, sizeof (mac), 0);
- vlib_cli_output (vm, "mac %U", format_ethernet_address, mac);
- virtio_pci_legacy_read_config (vm, vif, &data_u16, sizeof (u16), /* offset to status */
- 6);
- vlib_cli_output (vm, "link up/down status 0x%x", data_u16);
- virtio_pci_legacy_read_config (vm, vif, &data_u16, sizeof (u16),
- /* offset to max_virtqueue */ 8);
- vlib_cli_output (vm, "num of virtqueue 0x%x", data_u16);
- virtio_pci_legacy_read_config (vm, vif, &data_u16, sizeof (u16), /* offset to mtu */
- 10);
- vlib_cli_output (vm, "mtu 0x%x", data_u16);
-
- u32 i = PCI_CONFIG_SIZE (vif) + 12, a = 4;
- i += a;
- i &= ~a;
- for (; i < 64; i += 4)
- {
- u32 data = 0;
- vlib_pci_read_io_u32 (vm, vif->pci_dev_handle, i, &data);
- vlib_cli_output (vm, "0x%lx", data);
- }
-}
-
-struct virtio_ctrl_msg
-{
- struct virtio_net_ctrl_hdr ctrl;
- virtio_net_ctrl_ack status;
- u8 data[1024];
-};
-
static int
virtio_pci_send_ctrl_msg (vlib_main_t * vm, virtio_if_t * vif,
- struct virtio_ctrl_msg *data, u32 len)
+ virtio_ctrl_msg_t * data, u32 len)
{
virtio_vring_t *vring = vif->cxq_vring;
- virtio_net_ctrl_ack status = VIRTIO_NET_ERR;
- struct virtio_ctrl_msg result;
+ virtio_net_ctrl_ack_t status = VIRTIO_NET_ERR;
+ virtio_ctrl_msg_t result;
u32 buffer_index;
vlib_buffer_t *b;
u16 used, next, avail;
used = vring->desc_in_use;
next = vring->desc_next;
avail = vring->avail->idx;
- struct vring_desc *d = &vring->desc[next];
+ vring_desc_t *d = &vring->desc[next];
if (vlib_buffer_alloc (vm, &buffer_index, 1))
b = vlib_get_buffer (vm, buffer_index);
* previous offset.
*/
b->current_data = 0;
- clib_memcpy (vlib_buffer_get_current (b), data,
- sizeof (struct virtio_ctrl_msg));
+ clib_memcpy (vlib_buffer_get_current (b), data, sizeof (virtio_ctrl_msg_t));
d->flags = VRING_DESC_F_NEXT;
d->addr = vlib_buffer_get_current_pa (vm, b);
- d->len = sizeof (struct virtio_net_ctrl_hdr);
+ d->len = sizeof (virtio_net_ctrl_hdr_t);
vring->avail->ring[avail & mask] = next;
avail++;
next = (next + 1) & mask;
d = &vring->desc[next];
d->flags = VRING_DESC_F_NEXT;
d->addr = vlib_buffer_get_current_pa (vm, b) +
- STRUCT_OFFSET_OF (struct virtio_ctrl_msg, data);
+ STRUCT_OFFSET_OF (virtio_ctrl_msg_t, data);
d->len = len;
next = (next + 1) & mask;
d->next = next;
d = &vring->desc[next];
d->flags = VRING_DESC_F_WRITE;
d->addr = vlib_buffer_get_current_pa (vm, b) +
- STRUCT_OFFSET_OF (struct virtio_ctrl_msg, status);
+ STRUCT_OFFSET_OF (virtio_ctrl_msg_t, status);
d->len = sizeof (data->status);
next = (next + 1) & mask;
used++;
while (n_left)
{
- struct vring_used_elem *e = &vring->used->ring[last & mask];
+ vring_used_elem_t *e = &vring->used->ring[last & mask];
u16 slot = e->id;
d = &vring->desc[slot];
CLIB_MEMORY_BARRIER ();
clib_memcpy (&result, vlib_buffer_get_current (b),
- sizeof (struct virtio_ctrl_msg));
+ sizeof (virtio_ctrl_msg_t));
virtio_log_debug (vif, "ctrl-queue: status %u", result.status);
status = result.status;
vlib_buffer_free (vm, &buffer_index, 1);
static int
virtio_pci_disable_offload (vlib_main_t * vm, virtio_if_t * vif)
{
- struct virtio_ctrl_msg offload_hdr;
- virtio_net_ctrl_ack status = VIRTIO_NET_ERR;
+ virtio_ctrl_msg_t offload_hdr;
+ virtio_net_ctrl_ack_t status = VIRTIO_NET_ERR;
offload_hdr.ctrl.class = VIRTIO_NET_CTRL_GUEST_OFFLOADS;
offload_hdr.ctrl.cmd = VIRTIO_NET_CTRL_GUEST_OFFLOADS_SET;
status =
virtio_pci_send_ctrl_msg (vm, vif, &offload_hdr, sizeof (offloads));
virtio_log_debug (vif, "disable offloads");
- vif->remote_features = virtio_pci_legacy_get_host_features (vm, vif);
- virtio_pci_legacy_get_guest_features (vm, vif);
+ vif->remote_features = vif->virtio_pci_func->get_device_features (vm, vif);
+ vif->virtio_pci_func->get_driver_features (vm, vif);
return status;
}
static int
virtio_pci_enable_checksum_offload (vlib_main_t * vm, virtio_if_t * vif)
{
- struct virtio_ctrl_msg csum_offload_hdr;
- virtio_net_ctrl_ack status = VIRTIO_NET_ERR;
+ virtio_ctrl_msg_t csum_offload_hdr;
+ virtio_net_ctrl_ack_t status = VIRTIO_NET_ERR;
csum_offload_hdr.ctrl.class = VIRTIO_NET_CTRL_GUEST_OFFLOADS;
csum_offload_hdr.ctrl.cmd = VIRTIO_NET_CTRL_GUEST_OFFLOADS_SET;
status =
virtio_pci_send_ctrl_msg (vm, vif, &csum_offload_hdr, sizeof (offloads));
virtio_log_debug (vif, "enable checksum offload");
- vif->remote_features = virtio_pci_legacy_get_host_features (vm, vif);
- virtio_pci_legacy_get_guest_features (vm, vif);
+ vif->remote_features = vif->virtio_pci_func->get_device_features (vm, vif);
+ vif->features = vif->virtio_pci_func->get_driver_features (vm, vif);
return status;
}
static int
virtio_pci_enable_gso (vlib_main_t * vm, virtio_if_t * vif)
{
- struct virtio_ctrl_msg gso_hdr;
- virtio_net_ctrl_ack status = VIRTIO_NET_ERR;
+ virtio_ctrl_msg_t gso_hdr;
+ virtio_net_ctrl_ack_t status = VIRTIO_NET_ERR;
gso_hdr.ctrl.class = VIRTIO_NET_CTRL_GUEST_OFFLOADS;
gso_hdr.ctrl.cmd = VIRTIO_NET_CTRL_GUEST_OFFLOADS_SET;
status = virtio_pci_send_ctrl_msg (vm, vif, &gso_hdr, sizeof (offloads));
virtio_log_debug (vif, "enable gso");
- vif->remote_features = virtio_pci_legacy_get_host_features (vm, vif);
- virtio_pci_legacy_get_guest_features (vm, vif);
+ vif->remote_features = vif->virtio_pci_func->get_device_features (vm, vif);
+ vif->virtio_pci_func->get_driver_features (vm, vif);
return status;
}
virtio_pci_enable_multiqueue (vlib_main_t * vm, virtio_if_t * vif,
u16 num_queues)
{
- struct virtio_ctrl_msg mq_hdr;
- virtio_net_ctrl_ack status = VIRTIO_NET_ERR;
+ virtio_ctrl_msg_t mq_hdr;
+ virtio_net_ctrl_ack_t status = VIRTIO_NET_ERR;
mq_hdr.ctrl.class = VIRTIO_NET_CTRL_MQ;
mq_hdr.ctrl.cmd = VIRTIO_NET_CTRL_MQ_VQ_PAIRS_SET;
clib_error_t *error = 0;
u16 queue_size = 0;
virtio_vring_t *vring;
- struct vring vr;
+ vring_t vr;
u32 i = 0;
void *ptr = NULL;
- queue_size = virtio_pci_legacy_get_queue_num (vm, vif, queue_num);
+ queue_size = vif->virtio_pci_func->get_queue_size (vm, vif, queue_num);
if (!virtio_pci_queue_size_valid (queue_size))
clib_warning ("queue size is not valid");
vring->size = queue_size;
virtio_log_debug (vif, "control-queue: number %u, size %u", queue_num,
queue_size);
- virtio_pci_legacy_setup_queue (vm, vif, queue_num, ptr);
+ vif->virtio_pci_func->setup_queue (vm, vif, queue_num, ptr);
vring->kick_fd = -1;
return error;
clib_error_t *error = 0;
u16 queue_size = 0;
virtio_vring_t *vring;
- struct vring vr;
+ vring_t vr;
u32 i = 0;
void *ptr = NULL;
- queue_size = virtio_pci_legacy_get_queue_num (vm, vif, queue_num);
+ queue_size = vif->virtio_pci_func->get_queue_size (vm, vif, queue_num);
if (!virtio_pci_queue_size_valid (queue_size))
clib_warning ("queue size is not valid");
queue_size);
}
vring->size = queue_size;
- if (virtio_pci_legacy_setup_queue (vm, vif, queue_num, ptr))
+ if (vif->virtio_pci_func->setup_queue (vm, vif, queue_num, ptr))
return clib_error_return (0, "error in queue address setup");
vring->kick_fd = -1;
| VIRTIO_FEATURE (VIRTIO_F_ANY_LAYOUT)
| VIRTIO_FEATURE (VIRTIO_RING_F_INDIRECT_DESC);
+ if (vif->is_modern)
+ supported_features |= VIRTIO_FEATURE (VIRTIO_F_VERSION_1);
+
if (req_features == 0)
{
req_features = supported_features;
if (vif->features & VIRTIO_FEATURE (VIRTIO_NET_F_MTU))
{
- virtio_net_config_t config;
- virtio_pci_legacy_read_config (vm, vif, &config.mtu,
- sizeof (config.mtu),
- STRUCT_OFFSET_OF (virtio_net_config_t,
- mtu));
- if (config.mtu < 64)
+ u16 mtu = 0;
+ mtu = vif->virtio_pci_func->get_mtu (vm, vif);
+
+ if (mtu < 64)
vif->features &= ~VIRTIO_FEATURE (VIRTIO_NET_F_MTU);
}
- vif->features =
- virtio_pci_legacy_set_guest_features (vm, vif, vif->features);
+ vif->virtio_pci_func->set_driver_features (vm, vif, vif->features);
+ vif->features = vif->virtio_pci_func->get_driver_features (vm, vif);
}
void
virtio_pci_read_device_feature (vlib_main_t * vm, virtio_if_t * vif)
{
- vif->remote_features = virtio_pci_legacy_get_host_features (vm, vif);
+ vif->remote_features = vif->virtio_pci_func->get_device_features (vm, vif);
}
int
/*
* Reset the device
*/
- status = virtio_pci_legacy_reset (vm, vif);
+ status = vif->virtio_pci_func->device_reset (vm, vif);
/*
* Set the Acknowledge status bit
*/
- virtio_pci_legacy_set_status (vm, vif, VIRTIO_CONFIG_STATUS_ACK);
+ vif->virtio_pci_func->set_status (vm, vif, VIRTIO_CONFIG_STATUS_ACK);
/*
* Set the Driver status bit
*/
- virtio_pci_legacy_set_status (vm, vif, VIRTIO_CONFIG_STATUS_DRIVER);
+ vif->virtio_pci_func->set_status (vm, vif, VIRTIO_CONFIG_STATUS_DRIVER);
/*
* Read the status and verify it
*/
- status = virtio_pci_legacy_get_status (vm, vif);
- if (!
- ((status & VIRTIO_CONFIG_STATUS_ACK)
- && (status & VIRTIO_CONFIG_STATUS_DRIVER)))
+ status = vif->virtio_pci_func->get_status (vm, vif);
+ if ((status & VIRTIO_CONFIG_STATUS_ACK)
+ && (status & VIRTIO_CONFIG_STATUS_DRIVER))
+ vif->status = status;
+ else
return -1;
- vif->status = status;
return 0;
}
clib_error_t *
-virtio_pci_read_caps (vlib_main_t * vm, virtio_if_t * vif)
+virtio_pci_read_caps (vlib_main_t * vm, virtio_if_t * vif, void **bar)
{
clib_error_t *error = 0;
- struct virtio_pci_cap cap;
- u8 pos, common_cfg = 0, notify_base = 0, dev_cfg = 0, isr = 0, pci_cfg = 0;
+ virtio_pci_cap_t cap;
+ u8 pos, common_cfg = 0, notify = 0, dev_cfg = 0, isr = 0, pci_cfg = 0;
vlib_pci_dev_handle_t h = vif->pci_dev_handle;
if ((error = vlib_pci_read_config_u8 (vm, h, PCI_CAPABILITY_LIST, &pos)))
{
virtio_log_error (vif, "error in reading capabilty list position");
- clib_error_return (error, "error in reading capabilty list position");
+ return clib_error_return (error,
+ "error in reading capabilty list position");
}
while (pos)
{
{
virtio_log_error (vif, "%s [%2x]",
"error in reading the capability at", pos);
- clib_error_return (error,
- "error in reading the capability at [%2x]", pos);
+ return clib_error_return (error,
+ "error in reading the capability at [%2x]",
+ pos);
}
if (cap.cap_vndr == PCI_CAP_ID_MSIX)
if ((error =
vlib_pci_read_write_config (vm, h, VLIB_READ, pos + 2, &flags,
sizeof (flags))))
- clib_error_return (error,
- "error in reading the capability at [%2x]",
- pos + 2);
+ return clib_error_return (error,
+ "error in reading the capability at [%2x]",
+ pos + 2);
table_size = flags & table_size_mask;
virtio_log_debug (vif, "flags:0x%x %s 0x%x", flags,
virtio_log_debug (vif,
"[%4x] cfg type: %u, bar: %u, offset: %04x, len: %u",
pos, cap.cfg_type, cap.bar, cap.offset, cap.length);
+
+ if (cap.bar >= 0 && cap.bar <= 5)
+ {
+ vif->bar = bar[cap.bar];
+ vif->bar_id = cap.bar;
+ }
+ else
+ return clib_error_return (error, "invalid bar %u", cap.bar);
+
switch (cap.cfg_type)
{
case VIRTIO_PCI_CAP_COMMON_CFG:
+ vif->common_offset = cap.offset;
common_cfg = 1;
break;
case VIRTIO_PCI_CAP_NOTIFY_CFG:
- notify_base = 1;
+ if ((error =
+ vlib_pci_read_write_config (vm, h, VLIB_READ,
+ pos + sizeof (cap),
+ &vif->notify_off_multiplier,
+ sizeof
+ (vif->notify_off_multiplier))))
+ {
+ virtio_log_error (vif, "notify off multiplier is not given");
+ }
+ else
+ {
+ virtio_log_debug (vif, "notify off multiplier is %u",
+ vif->notify_off_multiplier);
+ vif->notify_offset = cap.offset;
+ notify = 1;
+ }
break;
case VIRTIO_PCI_CAP_DEVICE_CFG:
+ vif->device_offset = cap.offset;
dev_cfg = 1;
break;
case VIRTIO_PCI_CAP_ISR_CFG:
+ vif->isr_offset = cap.offset;
isr = 1;
break;
case VIRTIO_PCI_CAP_PCI_CFG:
pos = cap.cap_next;
}
- if (common_cfg == 0 || notify_base == 0 || dev_cfg == 0 || isr == 0)
+ if (common_cfg == 0 || notify == 0 || dev_cfg == 0 || isr == 0)
{
+ vif->virtio_pci_func = &virtio_pci_legacy_func;
virtio_log_debug (vif, "legacy virtio pci device found");
return error;
}
+ vif->is_modern = 1;
+ vif->virtio_pci_func = &virtio_pci_modern_func;
+
if (!pci_cfg)
- clib_error_return (error, "modern virtio pci device found");
+ virtio_log_debug (vif, "modern virtio pci device found");
virtio_log_debug (vif, "transitional virtio pci device found");
return error;
static clib_error_t *
virtio_pci_device_init (vlib_main_t * vm, virtio_if_t * vif,
- virtio_pci_create_if_args_t * args)
+ virtio_pci_create_if_args_t * args, void **bar)
{
clib_error_t *error = 0;
vlib_thread_main_t *vtm = vlib_get_thread_main ();
u8 status = 0;
- if ((error = virtio_pci_read_caps (vm, vif)))
+ if ((error = virtio_pci_read_caps (vm, vif, bar)))
{
args->rv = VNET_API_ERROR_UNSUPPORTED;
virtio_log_error (vif, "Device is not supported");
- clib_error_return (error, "Device is not supported");
+ return clib_error_return (error, "Device is not supported");
}
if (virtio_pci_reset_device (vm, vif) < 0)
{
args->rv = VNET_API_ERROR_INIT_FAILED;
virtio_log_error (vif, "Failed to reset the device");
- clib_error_return (error, "Failed to reset the device");
+ return clib_error_return (error, "Failed to reset the device");
}
/*
* read device features and negotiate (user) requested features
/*
* After FEATURE_OK, driver should not accept new feature bits
*/
- virtio_pci_legacy_set_status (vm, vif, VIRTIO_CONFIG_STATUS_FEATURES_OK);
- status = virtio_pci_legacy_get_status (vm, vif);
+ vif->virtio_pci_func->set_status (vm, vif,
+ VIRTIO_CONFIG_STATUS_FEATURES_OK);
+ status = vif->virtio_pci_func->get_status (vm, vif);
if (!(status & VIRTIO_CONFIG_STATUS_FEATURES_OK))
{
args->rv = VNET_API_ERROR_UNSUPPORTED;
virtio_log_error (vif,
"error encountered: Device doesn't support requested features");
- clib_error_return (error, "Device doesn't support requested features");
+ return clib_error_return (error,
+ "Device doesn't support requested features");
}
vif->status = status;
args->rv = VNET_API_ERROR_INIT_FAILED;
virtio_log_error (vif, "%s (%u) %s", "error in rxq-queue",
RX_QUEUE (i), "initialization");
- clib_error_return (error, "%s (%u) %s", "error in rxq-queue",
- RX_QUEUE (i), "initialization");
+ error =
+ clib_error_return (error, "%s (%u) %s", "error in rxq-queue",
+ RX_QUEUE (i), "initialization");
+ goto err;
}
else
{
args->rv = VNET_API_ERROR_INIT_FAILED;
virtio_log_error (vif, "%s (%u) %s", "error in txq-queue",
TX_QUEUE (i), "initialization");
- clib_error_return (error, "%s (%u) %s", "error in txq-queue",
- TX_QUEUE (i), "initialization");
+ error =
+ clib_error_return (error, "%s (%u) %s", "error in txq-queue",
+ TX_QUEUE (i), "initialization");
+ goto err;
}
else
{
if (vif->msix_enabled == VIRTIO_MSIX_ENABLED)
{
int i, j;
- if (virtio_pci_legacy_set_config_irq (vm, vif, 0) ==
+ if (vif->virtio_pci_func->set_config_irq (vm, vif, 0) ==
VIRTIO_MSI_NO_VECTOR)
{
virtio_log_warning (vif, "config vector 0 is not set");
}
for (i = 0, j = 1; i < vif->max_queue_pairs; i++, j++)
{
- if (virtio_pci_legacy_set_queue_irq (vm, vif, j, RX_QUEUE (i)) ==
+ if (vif->virtio_pci_func->set_queue_irq (vm, vif, j,
+ RX_QUEUE (i)) ==
VIRTIO_MSI_NO_VECTOR)
{
virtio_log_warning (vif, "queue (%u) vector is not set at %u",
/*
* set the driver status OK
*/
- virtio_pci_legacy_set_status (vm, vif, VIRTIO_CONFIG_STATUS_DRIVER_OK);
- vif->status = virtio_pci_legacy_get_status (vm, vif);
+ vif->virtio_pci_func->set_status (vm, vif, VIRTIO_CONFIG_STATUS_DRIVER_OK);
+ vif->status = vif->virtio_pci_func->get_status (vm, vif);
err:
return error;
}
goto error;
}
+ void *bar[6];
+ for (u32 i = 0; i <= 5; i++)
+ {
+
+ if ((error = vlib_pci_map_region (vm, h, i, &bar[i])))
+ {
+ virtio_log_debug (vif, "no pci map region for bar %u", i);
+ }
+ else
+ {
+ virtio_log_debug (vif, "pci map region for bar %u at %p", i,
+ bar[i]);
+ }
+ }
+
if ((error = vlib_pci_io_region (vm, h, 0)))
{
virtio_log_error (vif, "error encountered on pci io region");
goto error;
}
- if ((error = virtio_pci_device_init (vm, vif, args)))
+ if ((error = virtio_pci_device_init (vm, vif, args, bar)))
{
virtio_log_error (vif, "error encountered on device init");
goto error;
for (i = 0; i < vif->max_queue_pairs; i++)
{
- virtio_pci_legacy_del_queue (vm, vif, RX_QUEUE (i));
- virtio_pci_legacy_del_queue (vm, vif, TX_QUEUE (i));
+ vif->virtio_pci_func->del_queue (vm, vif, RX_QUEUE (i));
+ vif->virtio_pci_func->del_queue (vm, vif, TX_QUEUE (i));
}
if (vif->features & VIRTIO_FEATURE (VIRTIO_NET_F_CTRL_VQ))
- virtio_pci_legacy_del_queue (vm, vif, vif->max_queue_pairs * 2);
+ vif->virtio_pci_func->del_queue (vm, vif, vif->max_queue_pairs * 2);
- virtio_pci_legacy_reset (vm, vif);
+ if (vif->virtio_pci_func)
+ vif->virtio_pci_func->device_reset (vm, vif);
if (vif->hw_if_index)
{
Code Review / vpp.git / blobdiff