vhost: convert vhost device driver to a plugin

convert vhost device driver to a plugin as described in
https://jira.fd.io/browse/VPP-2065

Type: improvement

Signed-off-by: Steven Luong <sluong@cisco.com>
Change-Id: Ibfe2f351bcaed36a04b136d082ae414145dd37b5

1 files changed, 0 insertions, 388 deletions

diff --git a/src/vnet/devices/virtio/vhost_user.h b/src/vnet/devices/virtio/vhost_user.h
deleted file mode 100644
index f44951e030a..00000000000
--- a/src/vnet/devices/virtio/vhost_user.h
+++ /dev/null
@@ -1,388 +0,0 @@
-/*
- * Copyright (c) 2015 Cisco and/or its affiliates.
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at:
- *
- *     http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-#ifndef __VIRTIO_VHOST_USER_H__
-#define __VIRTIO_VHOST_USER_H__
-
-#include <vnet/devices/virtio/virtio_std.h>
-#include <vnet/devices/virtio/vhost_std.h>
-
-/* vhost-user data structures */
-
-#define VHOST_MEMORY_MAX_NREGIONS       8
-#define VHOST_USER_MSG_HDR_SZ           12
-#define VHOST_VRING_INIT_MQ_PAIR_SZ     8	//8TX + 8RX
-
-/*
- * qid is one byte in size in the spec. Please see VHOST_USER_SET_VRING_CALL,
- * VHOST_USER_SET_VRING_KICK, and VHOST_USER_SET_VRING_ERR.
- * The max number for q pair is naturally 128.
- */
-#define VHOST_VRING_MAX_MQ_PAIR_SZ      128
-#define VHOST_VRING_IDX_RX(qid)		(2 * (qid))
-#define VHOST_VRING_IDX_TX(qid)		(2 * (qid) + 1)
-
-#define VHOST_USER_VRING_NOFD_MASK      0x100
-
-#define VHOST_USER_PROTOCOL_F_MQ   0
-#define VHOST_USER_PROTOCOL_F_LOG_SHMFD	1
-#define VHOST_VRING_F_LOG 0
-
-#define VHOST_USER_PROTOCOL_FEATURES   ((1ULL << VHOST_USER_PROTOCOL_F_MQ) |	\
-					(1ULL << VHOST_USER_PROTOCOL_F_LOG_SHMFD))
-
-#define vu_log_debug(dev, f, ...) \
-{                                                                             \
-  vlib_log(VLIB_LOG_LEVEL_DEBUG, vhost_user_main.log_default, "%U: " f,       \
-	   format_vnet_hw_if_index_name, vnet_get_main(),                     \
-	   dev->hw_if_index, ##__VA_ARGS__);                                  \
-};
-
-#define vu_log_warn(dev, f, ...) \
-{                                                                             \
-  vlib_log(VLIB_LOG_LEVEL_WARNING, vhost_user_main.log_default, "%U: " f,     \
-	   format_vnet_hw_if_index_name, vnet_get_main(),                     \
-	   dev->hw_if_index, ##__VA_ARGS__);                                  \
-};
-#define vu_log_err(dev, f, ...) \
-{                                                                             \
-  vlib_log(VLIB_LOG_LEVEL_ERR, vhost_user_main.log_default, "%U: " f,         \
-	   format_vnet_hw_if_index_name, vnet_get_main(),                     \
-	   dev->hw_if_index, ##__VA_ARGS__);                                  \
-};
-
-#define UNIX_GET_FD(unixfd_idx) ({ \
-    typeof(unixfd_idx) __unixfd_idx = (unixfd_idx); \
-    (__unixfd_idx != ~0) ? \
-        pool_elt_at_index (file_main.file_pool, \
-                           __unixfd_idx)->file_descriptor : -1; })
-
-#define foreach_virtio_trace_flags \
-  _ (SIMPLE_CHAINED, 0, "Simple descriptor chaining") \
-  _ (SINGLE_DESC,  1, "Single descriptor packet") \
-  _ (INDIRECT, 2, "Indirect descriptor") \
-  _ (MAP_ERROR, 4, "Memory mapping error")
-
-typedef enum
-{
-#define _(n,i,s) VIRTIO_TRACE_F_##n,
-  foreach_virtio_trace_flags
-#undef _
-} virtio_trace_flag_t;
-
-#define FEATURE_VIRTIO_NET_F_HOST_TSO_FEATURE_BITS \
-  (VIRTIO_FEATURE (VIRTIO_NET_F_CSUM) |		   \
-   VIRTIO_FEATURE (VIRTIO_NET_F_HOST_UFO) |	   \
-   VIRTIO_FEATURE (VIRTIO_NET_F_HOST_TSO4) |	   \
-   VIRTIO_FEATURE (VIRTIO_NET_F_HOST_TSO6))
-
-#define FEATURE_VIRTIO_NET_F_GUEST_TSO_FEATURE_BITS \
-  (VIRTIO_FEATURE (VIRTIO_NET_F_GUEST_CSUM) |	    \
-   VIRTIO_FEATURE (VIRTIO_NET_F_GUEST_UFO) |	    \
-   VIRTIO_FEATURE (VIRTIO_NET_F_GUEST_TSO4) |	    \
-   VIRTIO_FEATURE (VIRTIO_NET_F_GUEST_TSO6))
-
-#define FEATURE_VIRTIO_NET_F_HOST_GUEST_TSO_FEATURE_BITS \
-  (FEATURE_VIRTIO_NET_F_HOST_TSO_FEATURE_BITS |		 \
-   FEATURE_VIRTIO_NET_F_GUEST_TSO_FEATURE_BITS)
-
-
-typedef struct
-{
-  char *sock_filename;
-  u64 feature_mask;
-  u32 custom_dev_instance;
-  u8 hwaddr[6];
-  u8 renumber;
-  u8 is_server;
-  u8 enable_gso;
-  u8 enable_packed;
-  u8 enable_event_idx;
-  u8 use_custom_mac;
-
-  /* return */
-  u32 sw_if_index;
-} vhost_user_create_if_args_t;
-
-int vhost_user_create_if (vnet_main_t * vnm, vlib_main_t * vm,
-			  vhost_user_create_if_args_t * args);
-int vhost_user_modify_if (vnet_main_t * vnm, vlib_main_t * vm,
-			  vhost_user_create_if_args_t * args);
-int vhost_user_delete_if (vnet_main_t * vnm, vlib_main_t * vm,
-			  u32 sw_if_index);
-
-/* *INDENT-OFF* */
-typedef struct vhost_user_memory_region
-{
-  u64 guest_phys_addr;
-  u64 memory_size;
-  u64 userspace_addr;
-  u64 mmap_offset;
-} __attribute ((packed)) vhost_user_memory_region_t;
-
-typedef struct vhost_user_memory
-{
-  u32 nregions;
-  u32 padding;
-  vhost_user_memory_region_t regions[VHOST_MEMORY_MAX_NREGIONS];
-} __attribute ((packed)) vhost_user_memory_t;
-
-typedef enum vhost_user_req
-{
-  VHOST_USER_NONE = 0,
-  VHOST_USER_GET_FEATURES = 1,
-  VHOST_USER_SET_FEATURES = 2,
-  VHOST_USER_SET_OWNER = 3,
-  VHOST_USER_RESET_OWNER = 4,
-  VHOST_USER_SET_MEM_TABLE = 5,
-  VHOST_USER_SET_LOG_BASE = 6,
-  VHOST_USER_SET_LOG_FD = 7,
-  VHOST_USER_SET_VRING_NUM = 8,
-  VHOST_USER_SET_VRING_ADDR = 9,
-  VHOST_USER_SET_VRING_BASE = 10,
-  VHOST_USER_GET_VRING_BASE = 11,
-  VHOST_USER_SET_VRING_KICK = 12,
-  VHOST_USER_SET_VRING_CALL = 13,
-  VHOST_USER_SET_VRING_ERR = 14,
-  VHOST_USER_GET_PROTOCOL_FEATURES = 15,
-  VHOST_USER_SET_PROTOCOL_FEATURES = 16,
-  VHOST_USER_GET_QUEUE_NUM = 17,
-  VHOST_USER_SET_VRING_ENABLE = 18,
-  VHOST_USER_MAX
-} vhost_user_req_t;
-
-typedef struct vhost_user_msg {
-  vhost_user_req_t request;
-  u32 flags;
-  u32 size;
-  union
-    {
-      u64 u64;
-      vhost_vring_state_t state;
-      vhost_vring_addr_t addr;
-      vhost_user_memory_t memory;
-      vhost_user_log_t log;
-    };
-} __attribute ((packed)) vhost_user_msg_t;
-/* *INDENT-ON* */
-
-typedef struct
-{
-  CLIB_CACHE_LINE_ALIGN_MARK (cacheline0);
-  u16 qsz_mask;
-  u16 last_avail_idx;
-  u16 last_used_idx;
-  u16 n_since_last_int;
-  union
-  {
-    vnet_virtio_vring_desc_t *desc;
-    vnet_virtio_vring_packed_desc_t *packed_desc;
-  };
-  union
-  {
-    vnet_virtio_vring_avail_t *avail;
-    vnet_virtio_vring_desc_event_t *avail_event;
-  };
-  union
-  {
-    vnet_virtio_vring_used_t *used;
-    vnet_virtio_vring_desc_event_t *used_event;
-  };
-  uword desc_user_addr;
-  uword used_user_addr;
-  uword avail_user_addr;
-  f64 int_deadline;
-  u8 started;
-  u8 enabled;
-  u8 log_used;
-  clib_spinlock_t vring_lock;
-
-  //Put non-runtime in a different cache line
-    CLIB_CACHE_LINE_ALIGN_MARK (cacheline1);
-  int errfd;
-  u32 callfd_idx;
-  u32 kickfd_idx;
-  u64 log_guest_addr;
-
-  /* The rx queue policy (interrupt/adaptive/polling) for this queue */
-  u32 mode;
-
-  /*
-   * It contains the device queue number. -1 if it does not. The idea is
-   * to not invoke vnet_hw_interface_assign_rx_thread and
-   * vnet_hw_interface_unassign_rx_thread more than once for the duration of
-   * the interface even if it is disconnected and reconnected.
-   */
-  i16 qid;
-
-  u16 used_wrap_counter;
-  u16 avail_wrap_counter;
-  u16 last_kick;
-  u8 first_kick;
-  u32 queue_index;
-  u32 thread_index;
-} vhost_user_vring_t;
-
-#define VHOST_USER_EVENT_START_TIMER 1
-#define VHOST_USER_EVENT_STOP_TIMER  2
-
-typedef struct
-{
-  CLIB_CACHE_LINE_ALIGN_MARK (cacheline0);
-  u32 is_ready;
-  u32 admin_up;
-  u32 unix_server_index;
-  u32 clib_file_index;
-  char sock_filename[256];
-  int sock_errno;
-  uword if_index;
-  u32 hw_if_index, sw_if_index;
-
-  //Feature negotiation
-  u64 features;
-  u64 feature_mask;
-  u64 protocol_features;
-
-  //Memory region information
-  u32 nregions;
-  vhost_user_memory_region_t regions[VHOST_MEMORY_MAX_NREGIONS];
-  void *region_mmap_addr[VHOST_MEMORY_MAX_NREGIONS];
-  u64 region_guest_addr_lo[VHOST_MEMORY_MAX_NREGIONS];
-  u64 region_guest_addr_hi[VHOST_MEMORY_MAX_NREGIONS];
-  u32 region_mmap_fd[VHOST_MEMORY_MAX_NREGIONS];
-
-  //Virtual rings
-  vhost_user_vring_t *vrings;
-
-  /*
-   * vrings is a dynamic array. It may have more elements than it is
-   * currently used. num_qid indicates the current total qid's in the
-   * vrings. For example, vec_len(vrings) = 64, num_qid = 60, so the
-   * current valid/used qid is (0, 59) in the vrings array.
-   */
-  u32 num_qid;
-
-  int virtio_net_hdr_sz;
-  int is_any_layout;
-
-  void *log_base_addr;
-  u64 log_size;
-
-  u8 enable_gso;
-
-  /* Packed ring configured */
-  u8 enable_packed;
-
-  u8 enable_event_idx;
-} vhost_user_intf_t;
-
-#define FOR_ALL_VHOST_TXQ(qid, vui) for (qid = 1; qid < vui->num_qid; qid += 2)
-
-#define FOR_ALL_VHOST_RXQ(qid, vui) for (qid = 0; qid < vui->num_qid; qid += 2)
-
-#define FOR_ALL_VHOST_RX_TXQ(qid, vui) for (qid = 0; qid < vui->num_qid; qid++)
-
-typedef struct
-{
-  uword dst;
-  uword src;
-  u32 len;
-} vhost_copy_t;
-
-typedef struct
-{
-  u16 qid; /** The interface queue index (Not the virtio vring idx) */
-  u16 device_index; /** The device index */
-  u32 virtio_ring_flags; /** Runtime queue flags  **/
-  u16 first_desc_len; /** Length of the first data descriptor **/
-  vnet_virtio_net_hdr_mrg_rxbuf_t hdr; /** Virtio header **/
-} vhost_trace_t;
-
-#define VHOST_USER_RX_BUFFERS_N (2 * VLIB_FRAME_SIZE + 2)
-#define VHOST_USER_COPY_ARRAY_N (4 * VLIB_FRAME_SIZE)
-
-typedef struct
-{
-  u32 rx_buffers_len;
-  u32 rx_buffers[VHOST_USER_RX_BUFFERS_N];
-
-  vnet_virtio_net_hdr_mrg_rxbuf_t tx_headers[VLIB_FRAME_SIZE];
-  vhost_copy_t copy[VHOST_USER_COPY_ARRAY_N];
-
-  /* This is here so it doesn't end-up
-   * using stack or registers. */
-  vhost_trace_t *current_trace;
-
-  u32 *to_next_list;
-  vlib_buffer_t **rx_buffers_pdesc;
-  u32 polling_q_count;
-} vhost_cpu_t;
-
-typedef struct
-{
-  mhash_t if_index_by_sock_name;
-  u32 mtu_bytes;
-  vhost_user_intf_t *vhost_user_interfaces;
-  u32 *show_dev_instance_by_real_dev_instance;
-  u32 coalesce_frames;
-  f64 coalesce_time;
-  int dont_dump_vhost_user_memory;
-
-  /** Per-CPU data for vhost-user */
-  vhost_cpu_t *cpus;
-
-  /** Pseudo random iterator */
-  u32 random;
-
-  /* The number of rx interface/queue pairs in interrupt mode */
-  u32 ifq_count;
-
-  /* logging */
-  vlib_log_class_t log_default;
-
-  /* gso interface count */
-  u32 gso_count;
-} vhost_user_main_t;
-
-typedef struct
-{
-  u8 if_name[64];
-  u32 sw_if_index;
-  u32 virtio_net_hdr_sz;
-  u64 features;
-  u8 is_server;
-  u8 sock_filename[256];
-  u32 num_regions;
-  int sock_errno;
-} vhost_user_intf_details_t;
-
-int vhost_user_dump_ifs (vnet_main_t * vnm, vlib_main_t * vm,
-			 vhost_user_intf_details_t ** out_vuids);
-void vhost_user_set_operation_mode (vhost_user_intf_t *vui,
-				    vhost_user_vring_t *txvq);
-
-extern vlib_node_registration_t vhost_user_send_interrupt_node;
-extern vnet_device_class_t vhost_user_device_class;
-extern vlib_node_registration_t vhost_user_input_node;
-extern vhost_user_main_t vhost_user_main;
-
-#endif
-
-/*
- * fd.io coding-style-patch-verification: ON
- *
- * Local Variables:
- * eval: (c-set-style "gnu")
- * End:
- */