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-rw-r--r--src/vnet/devices/virtio/vhost-user.c24
-rw-r--r--src/vnet/devices/virtio/vhost-user.h14
-rw-r--r--src/vnet/devices/virtio/vhost_user.api6
-rw-r--r--src/vnet/devices/virtio/vhost_user_api.c7
4 files changed, 41 insertions, 10 deletions
diff --git a/src/vnet/devices/virtio/vhost-user.c b/src/vnet/devices/virtio/vhost-user.c
index c16e98227db..b6b4c04a067 100644
--- a/src/vnet/devices/virtio/vhost-user.c
+++ b/src/vnet/devices/virtio/vhost-user.c
@@ -2540,7 +2540,7 @@ vhost_user_vui_init (vnet_main_t * vnm,
vhost_user_intf_t * vui,
int server_sock_fd,
const char *sock_filename,
- u64 feature_mask, u32 * sw_if_index)
+ u64 feature_mask, u32 * sw_if_index, u8 operation_mode)
{
vnet_sw_interface_t *sw;
sw = vnet_get_hw_sw_interface (vnm, vui->hw_if_index);
@@ -2567,6 +2567,7 @@ vhost_user_vui_init (vnet_main_t * vnm,
vui->feature_mask = feature_mask;
vui->unix_file_index = ~0;
vui->log_base_addr = 0;
+ vui->operation_mode = operation_mode;
for (q = 0; q < VHOST_VRING_MAX_N; q++)
vhost_user_vring_init (vui, q);
@@ -2594,13 +2595,17 @@ vhost_user_create_if (vnet_main_t * vnm, vlib_main_t * vm,
u8 is_server,
u32 * sw_if_index,
u64 feature_mask,
- u8 renumber, u32 custom_dev_instance, u8 * hwaddr)
+ u8 renumber, u32 custom_dev_instance, u8 * hwaddr,
+ u8 operation_mode)
{
vhost_user_intf_t *vui = NULL;
u32 sw_if_idx = ~0;
int rv = 0;
int server_sock_fd = -1;
+ if (operation_mode != VHOST_USER_POLLING_MODE)
+ return VNET_API_ERROR_UNIMPLEMENTED;
+
if (sock_filename == NULL || !(strlen (sock_filename) > 0))
{
return VNET_API_ERROR_INVALID_ARGUMENT;
@@ -2619,7 +2624,7 @@ vhost_user_create_if (vnet_main_t * vnm, vlib_main_t * vm,
vhost_user_create_ethernet (vnm, vm, vui, hwaddr);
vhost_user_vui_init (vnm, vui, server_sock_fd, sock_filename,
- feature_mask, &sw_if_idx);
+ feature_mask, &sw_if_idx, operation_mode);
if (renumber)
vnet_interface_name_renumber (sw_if_idx, custom_dev_instance);
@@ -2637,7 +2642,8 @@ vhost_user_modify_if (vnet_main_t * vnm, vlib_main_t * vm,
const char *sock_filename,
u8 is_server,
u32 sw_if_index,
- u64 feature_mask, u8 renumber, u32 custom_dev_instance)
+ u64 feature_mask, u8 renumber, u32 custom_dev_instance,
+ u8 operation_mode)
{
vhost_user_main_t *vum = &vhost_user_main;
vhost_user_intf_t *vui = NULL;
@@ -2646,6 +2652,8 @@ vhost_user_modify_if (vnet_main_t * vnm, vlib_main_t * vm,
int rv = 0;
vnet_hw_interface_t *hwif;
+ if (operation_mode != VHOST_USER_POLLING_MODE)
+ return VNET_API_ERROR_UNIMPLEMENTED;
if (!(hwif = vnet_get_sup_hw_interface (vnm, sw_if_index)) ||
hwif->dev_class_index != vhost_user_dev_class.index)
return VNET_API_ERROR_INVALID_SW_IF_INDEX;
@@ -2660,7 +2668,8 @@ vhost_user_modify_if (vnet_main_t * vnm, vlib_main_t * vm,
vhost_user_term_if (vui);
vhost_user_vui_init (vnm, vui, server_sock_fd,
- sock_filename, feature_mask, &sw_if_idx);
+ sock_filename, feature_mask, &sw_if_idx,
+ operation_mode);
if (renumber)
vnet_interface_name_renumber (sw_if_idx, custom_dev_instance);
@@ -2685,6 +2694,7 @@ vhost_user_connect_command_fn (vlib_main_t * vm,
u8 hwaddr[6];
u8 *hw = NULL;
clib_error_t *error = NULL;
+ u8 operation_mode = VHOST_USER_POLLING_MODE;
/* Get a line of input. */
if (!unformat_user (input, unformat_line_input, line_input))
@@ -2719,7 +2729,8 @@ vhost_user_connect_command_fn (vlib_main_t * vm,
int rv;
if ((rv = vhost_user_create_if (vnm, vm, (char *) sock_filename,
is_server, &sw_if_index, feature_mask,
- renumber, custom_dev_instance, hw)))
+ renumber, custom_dev_instance, hw,
+ operation_mode)))
{
error = clib_error_return (0, "vhost_user_create_if returned %d", rv);
goto done;
@@ -2809,6 +2820,7 @@ vhost_user_dump_ifs (vnet_main_t * vnm, vlib_main_t * vm,
vui = pool_elt_at_index (vum->vhost_user_interfaces, hi->dev_instance);
vec_add2 (r_vuids, vuid, 1);
+ vuid->operation_mode = vui->operation_mode;
vuid->sw_if_index = vui->sw_if_index;
vuid->virtio_net_hdr_sz = vui->virtio_net_hdr_sz;
vuid->features = vui->features;
diff --git a/src/vnet/devices/virtio/vhost-user.h b/src/vnet/devices/virtio/vhost-user.h
index dd23a909bfa..6b928f05e28 100644
--- a/src/vnet/devices/virtio/vhost-user.h
+++ b/src/vnet/devices/virtio/vhost-user.h
@@ -42,6 +42,7 @@
#define VIRTIO_NET_CTRL_MQ_VQ_PAIRS_MAX 0x8000
#define VRING_USED_F_NO_NOTIFY 1
+#define VRING_AVAIL_F_NO_INTERRUPT 1
#define foreach_virtio_net_feature \
_ (VIRTIO_NET_F_MRG_RXBUF, 15) \
@@ -65,11 +66,13 @@ typedef enum
int vhost_user_create_if (vnet_main_t * vnm, vlib_main_t * vm,
const char *sock_filename, u8 is_server,
u32 * sw_if_index, u64 feature_mask,
- u8 renumber, u32 custom_dev_instance, u8 * hwaddr);
+ u8 renumber, u32 custom_dev_instance, u8 * hwaddr,
+ u8 operation_mode);
int vhost_user_modify_if (vnet_main_t * vnm, vlib_main_t * vm,
const char *sock_filename, u8 is_server,
u32 sw_if_index, u64 feature_mask,
- u8 renumber, u32 custom_dev_instance);
+ u8 renumber, u32 custom_dev_instance,
+ u8 operation_mode);
int vhost_user_delete_if (vnet_main_t * vnm, vlib_main_t * vm,
u32 sw_if_index);
@@ -209,6 +212,10 @@ typedef struct
u64 log_guest_addr;
} vhost_user_vring_t;
+#define VHOST_USER_POLLING_MODE 0
+#define VHOST_USER_INTERRUPT_MODE 1
+#define VHOST_USER_ADAPTIVE_MODE 2
+
typedef struct
{
CLIB_CACHE_LINE_ALIGN_MARK (cacheline0);
@@ -249,6 +256,8 @@ typedef struct
/* Vector of workers for this interface */
u32 *workers;
+
+ u8 operation_mode;
} vhost_user_intf_t;
typedef struct
@@ -323,6 +332,7 @@ typedef struct
u8 sock_filename[256];
u32 num_regions;
int sock_errno;
+ u8 operation_mode;
} vhost_user_intf_details_t;
int vhost_user_dump_ifs (vnet_main_t * vnm, vlib_main_t * vm,
diff --git a/src/vnet/devices/virtio/vhost_user.api b/src/vnet/devices/virtio/vhost_user.api
index 21e42298361..4f604e45494 100644
--- a/src/vnet/devices/virtio/vhost_user.api
+++ b/src/vnet/devices/virtio/vhost_user.api
@@ -19,6 +19,7 @@
@param sock_filename - unix socket filename, used to speak with frontend
@param use_custom_mac - enable or disable the use of the provided hardware address
@param mac_address - hardware address to use if 'use_custom_mac' is set
+ @param operation_mode - polling=0, interrupt=1, or adaptive=2
*/
define create_vhost_user_if
{
@@ -31,6 +32,7 @@ define create_vhost_user_if
u8 use_custom_mac;
u8 mac_address[6];
u8 tag[64];
+ u8 operation_mode;
};
/** \brief vhost-user interface create response
@@ -49,6 +51,7 @@ define create_vhost_user_if_reply
@param client_index - opaque cookie to identify the sender
@param is_server - our side is socket server
@param sock_filename - unix socket filename, used to speak with frontend
+ @param operation_mode - polling=0, interrupt=1, or adaptive=2
*/
define modify_vhost_user_if
{
@@ -59,6 +62,7 @@ define modify_vhost_user_if
u8 sock_filename[256];
u8 renumber;
u32 custom_dev_instance;
+ u8 operation_mode;
};
/** \brief vhost-user interface modify response
@@ -99,6 +103,7 @@ define delete_vhost_user_if_reply
@param is_server - vhost-user server socket
@param sock_filename - socket filename
@param num_regions - number of used memory regions
+ @param operation_mode - polling=0, interrupt=1, or adaptive=2
*/
define sw_interface_vhost_user_details
{
@@ -111,6 +116,7 @@ define sw_interface_vhost_user_details
u8 sock_filename[256];
u32 num_regions;
i32 sock_errno;
+ u8 operation_mode;
};
define sw_interface_vhost_user_dump
diff --git a/src/vnet/devices/virtio/vhost_user_api.c b/src/vnet/devices/virtio/vhost_user_api.c
index 8dbd032b117..ac7afa611b6 100644
--- a/src/vnet/devices/virtio/vhost_user_api.c
+++ b/src/vnet/devices/virtio/vhost_user_api.c
@@ -81,7 +81,8 @@ vl_api_create_vhost_user_if_t_handler (vl_api_create_vhost_user_if_t * mp)
rv = vhost_user_create_if (vnm, vm, (char *) mp->sock_filename,
mp->is_server, &sw_if_index, (u64) ~ 0,
mp->renumber, ntohl (mp->custom_dev_instance),
- (mp->use_custom_mac) ? mp->mac_address : NULL);
+ (mp->use_custom_mac) ? mp->mac_address : NULL,
+ mp->operation_mode);
/* Remember an interface tag for the new interface */
if (rv == 0)
@@ -116,7 +117,8 @@ vl_api_modify_vhost_user_if_t_handler (vl_api_modify_vhost_user_if_t * mp)
rv = vhost_user_modify_if (vnm, vm, (char *) mp->sock_filename,
mp->is_server, sw_if_index, (u64) ~ 0,
- mp->renumber, ntohl (mp->custom_dev_instance));
+ mp->renumber, ntohl (mp->custom_dev_instance),
+ mp->operation_mode);
REPLY_MACRO (VL_API_MODIFY_VHOST_USER_IF_REPLY);
}
@@ -162,6 +164,7 @@ send_sw_interface_vhost_user_details (vpe_api_main_t * am,
mp->virtio_net_hdr_sz = ntohl (vui->virtio_net_hdr_sz);
mp->features = clib_net_to_host_u64 (vui->features);
mp->is_server = vui->is_server;
+ mp->operation_mode = vui->operation_mode;
mp->num_regions = ntohl (vui->num_regions);
mp->sock_errno = ntohl (vui->sock_errno);
mp->context = context;