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57 #ifndef _RTE_AVP_COMMON_H_
58 #define _RTE_AVP_COMMON_H_
65 * AVP name is part of network device name.
67 #define RTE_AVP_NAMESIZE 32
70 * AVP alias is a user-defined value used for lookups from secondary
71 * processes. Typically, this is a UUID.
73 #define RTE_AVP_ALIASSIZE 128
79 RTE_AVP_REQ_UNKNOWN = 0,
80 RTE_AVP_REQ_CHANGE_MTU,
81 RTE_AVP_REQ_CFG_NETWORK_IF,
82 RTE_AVP_REQ_CFG_DEVICE,
83 RTE_AVP_REQ_SHUTDOWN_DEVICE,
87 /**@{ AVP device driver types */
88 #define RTE_AVP_DRIVER_TYPE_UNKNOWN 0
89 #define RTE_AVP_DRIVER_TYPE_DPDK 1
90 #define RTE_AVP_DRIVER_TYPE_KERNEL 2
91 #define RTE_AVP_DRIVER_TYPE_QEMU 3
94 /**@{ AVP device operational modes */
95 #define RTE_AVP_MODE_HOST 0 /**< AVP interface created in host */
96 #define RTE_AVP_MODE_GUEST 1 /**< AVP interface created for export to guest */
97 #define RTE_AVP_MODE_TRACE 2 /**< AVP interface created for packet tracing */
101 * Structure for AVP queue configuration query request/result
103 struct rte_avp_device_config {
104 uint64_t device_id; /**< Unique system identifier */
105 uint32_t driver_type; /**< Device Driver type */
106 uint32_t driver_version; /**< Device Driver version */
107 uint32_t features; /**< Negotiated features */
108 uint16_t num_tx_queues; /**< Number of active transmit queues */
109 uint16_t num_rx_queues; /**< Number of active receive queues */
110 uint8_t if_up; /**< 1: interface up, 0: interface down */
111 } __attribute__ ((__packed__));
114 * Structure for AVP request.
116 struct rte_avp_request {
117 uint32_t req_id; /**< Request id */
119 uint32_t new_mtu; /**< New MTU */
120 uint8_t if_up; /**< 1: interface up, 0: interface down */
121 struct rte_avp_device_config config; /**< Queue configuration */
123 int32_t result; /**< Result for processing request */
124 } __attribute__ ((__packed__));
127 * FIFO struct mapped in a shared memory. It describes a circular buffer FIFO
128 * Write and read should wrap around. FIFO is empty when write == read
129 * Writing should never overwrite the read position
131 struct rte_avp_fifo {
132 volatile unsigned int write; /**< Next position to be written*/
133 volatile unsigned int read; /**< Next position to be read */
134 unsigned int len; /**< Circular buffer length */
135 unsigned int elem_size; /**< Pointer size - for 32/64 bit OS */
136 void *volatile buffer[0]; /**< The buffer contains mbuf pointers */
141 * AVP packet buffer header used to define the exchange of packet data.
143 struct rte_avp_desc {
145 void *pkt_mbuf; /**< Reference to packet mbuf */
147 uint16_t ol_flags; /**< Offload features. */
148 void *next; /**< Reference to next buffer in chain */
149 void *data; /**< Start address of data in segment buffer. */
150 uint16_t data_len; /**< Amount of data in segment buffer. */
151 uint8_t nb_segs; /**< Number of segments */
153 uint16_t pkt_len; /**< Total pkt len: sum of all segment data_len. */
155 uint16_t vlan_tci; /**< VLAN Tag Control Identifier (CPU order). */
157 } __attribute__ ((__aligned__(RTE_CACHE_LINE_SIZE), __packed__));
160 /**{ AVP device features */
161 #define RTE_AVP_FEATURE_VLAN_OFFLOAD (1 << 0) /**< Emulated HW VLAN offload */
165 /**@{ Offload feature flags */
166 #define RTE_AVP_TX_VLAN_PKT 0x0001 /**< TX packet is a 802.1q VLAN packet. */
167 #define RTE_AVP_RX_VLAN_PKT 0x0800 /**< RX packet is a 802.1q VLAN packet. */
171 /**@{ AVP PCI identifiers */
172 #define RTE_AVP_PCI_VENDOR_ID 0x1af4
173 #define RTE_AVP_PCI_DEVICE_ID 0x1110
176 /**@{ AVP PCI subsystem identifiers */
177 #define RTE_AVP_PCI_SUB_VENDOR_ID RTE_AVP_PCI_VENDOR_ID
178 #define RTE_AVP_PCI_SUB_DEVICE_ID 0x1104
181 /**@{ AVP PCI BAR definitions */
182 #define RTE_AVP_PCI_MMIO_BAR 0
183 #define RTE_AVP_PCI_MSIX_BAR 1
184 #define RTE_AVP_PCI_MEMORY_BAR 2
185 #define RTE_AVP_PCI_MEMMAP_BAR 4
186 #define RTE_AVP_PCI_DEVICE_BAR 5
187 #define RTE_AVP_PCI_MAX_BAR 6
190 /**@{ AVP PCI BAR name definitions */
191 #define RTE_AVP_MMIO_BAR_NAME "avp-mmio"
192 #define RTE_AVP_MSIX_BAR_NAME "avp-msix"
193 #define RTE_AVP_MEMORY_BAR_NAME "avp-memory"
194 #define RTE_AVP_MEMMAP_BAR_NAME "avp-memmap"
195 #define RTE_AVP_DEVICE_BAR_NAME "avp-device"
198 /**@{ AVP PCI MSI-X vectors */
199 #define RTE_AVP_MIGRATION_MSIX_VECTOR 0 /**< Migration interrupts */
200 #define RTE_AVP_MAX_MSIX_VECTORS 1
203 /**@} AVP Migration status/ack register values */
204 #define RTE_AVP_MIGRATION_NONE 0 /**< Migration never executed */
205 #define RTE_AVP_MIGRATION_DETACHED 1 /**< Device attached during migration */
206 #define RTE_AVP_MIGRATION_ATTACHED 2 /**< Device reattached during migration */
207 #define RTE_AVP_MIGRATION_ERROR 3 /**< Device failed to attach/detach */
210 /**@} AVP MMIO Register Offsets */
211 #define RTE_AVP_REGISTER_BASE 0
212 #define RTE_AVP_INTERRUPT_MASK_OFFSET (RTE_AVP_REGISTER_BASE + 0)
213 #define RTE_AVP_INTERRUPT_STATUS_OFFSET (RTE_AVP_REGISTER_BASE + 4)
214 #define RTE_AVP_MIGRATION_STATUS_OFFSET (RTE_AVP_REGISTER_BASE + 8)
215 #define RTE_AVP_MIGRATION_ACK_OFFSET (RTE_AVP_REGISTER_BASE + 12)
218 /**@} AVP Interrupt Status Mask */
219 #define RTE_AVP_MIGRATION_INTERRUPT_MASK (1 << 1)
220 #define RTE_AVP_APP_INTERRUPTS_MASK 0xFFFFFFFF
221 #define RTE_AVP_NO_INTERRUPTS_MASK 0
225 * Maximum number of memory regions to export
227 #define RTE_AVP_MAX_MAPS 2048
230 * Description of a single memory region
232 struct rte_avp_memmap {
234 phys_addr_t phys_addr;
239 * AVP memory mapping validation marker
241 #define RTE_AVP_MEMMAP_MAGIC 0x20131969
243 /**@{ AVP memory map versions */
244 #define RTE_AVP_MEMMAP_VERSION_1 1
245 #define RTE_AVP_MEMMAP_VERSION RTE_AVP_MEMMAP_VERSION_1
249 * Defines a list of memory regions exported from the host to the guest
251 struct rte_avp_memmap_info {
252 uint32_t magic; /**< Memory validation marker */
253 uint32_t version; /**< Data format version */
255 struct rte_avp_memmap maps[RTE_AVP_MAX_MAPS];
259 * AVP device memory validation marker
261 #define RTE_AVP_DEVICE_MAGIC 0x20131975
263 /**@{ AVP device map versions
264 * WARNING: do not change the format or names of these variables. They are
265 * automatically parsed from the build system to generate the SDK package
268 #define RTE_AVP_RELEASE_VERSION_1 1
269 #define RTE_AVP_RELEASE_VERSION RTE_AVP_RELEASE_VERSION_1
270 #define RTE_AVP_MAJOR_VERSION_0 0
271 #define RTE_AVP_MAJOR_VERSION_1 1
272 #define RTE_AVP_MAJOR_VERSION_2 2
273 #define RTE_AVP_MAJOR_VERSION RTE_AVP_MAJOR_VERSION_2
274 #define RTE_AVP_MINOR_VERSION_0 0
275 #define RTE_AVP_MINOR_VERSION_1 1
276 #define RTE_AVP_MINOR_VERSION_13 13
277 #define RTE_AVP_MINOR_VERSION RTE_AVP_MINOR_VERSION_13
282 * Generates a 32-bit version number from the specified version number
285 #define RTE_AVP_MAKE_VERSION(_release, _major, _minor) \
286 ((((_release) & 0xffff) << 16) | (((_major) & 0xff) << 8) | ((_minor) & 0xff))
290 * Represents the current version of the AVP host driver
291 * WARNING: in the current development branch the host and guest driver
292 * version should always be the same. When patching guest features back to
293 * GA releases the host version number should not be updated unless there was
294 * an actual change made to the host driver.
296 #define RTE_AVP_CURRENT_HOST_VERSION \
297 RTE_AVP_MAKE_VERSION(RTE_AVP_RELEASE_VERSION_1, \
298 RTE_AVP_MAJOR_VERSION_0, \
299 RTE_AVP_MINOR_VERSION_1)
303 * Represents the current version of the AVP guest drivers
305 #define RTE_AVP_CURRENT_GUEST_VERSION \
306 RTE_AVP_MAKE_VERSION(RTE_AVP_RELEASE_VERSION_1, \
307 RTE_AVP_MAJOR_VERSION_2, \
308 RTE_AVP_MINOR_VERSION_13)
311 * Access AVP device version values
313 #define RTE_AVP_GET_RELEASE_VERSION(_version) (((_version) >> 16) & 0xffff)
314 #define RTE_AVP_GET_MAJOR_VERSION(_version) (((_version) >> 8) & 0xff)
315 #define RTE_AVP_GET_MINOR_VERSION(_version) ((_version) & 0xff)
320 * Remove the minor version number so that only the release and major versions
321 * are used for comparisons.
323 #define RTE_AVP_STRIP_MINOR_VERSION(_version) ((_version) >> 8)
327 * Defines the number of mbuf pools supported per device (1 per socket)
329 #define RTE_AVP_MAX_MEMPOOLS 8
332 * Defines address translation parameters for each support mbuf pool
334 struct rte_avp_mempool_info {
336 phys_addr_t phys_addr;
341 * Struct used to create a AVP device. Passed to the kernel in IOCTL call or
342 * via inter-VM shared memory when used in a guest.
344 struct rte_avp_device_info {
345 uint32_t magic; /**< Memory validation marker */
346 uint32_t version; /**< Data format version */
348 char ifname[RTE_AVP_NAMESIZE]; /**< Network device name for AVP */
352 phys_addr_t alloc_phys;
353 phys_addr_t free_phys;
355 uint32_t features; /**< Supported feature bitmap */
356 uint8_t min_rx_queues; /**< Minimum supported receive/free queues */
357 uint8_t num_rx_queues; /**< Recommended number of receive/free queues */
358 uint8_t max_rx_queues; /**< Maximum supported receive/free queues */
359 uint8_t min_tx_queues; /**< Minimum supported transmit/alloc queues */
360 uint8_t num_tx_queues;
361 /**< Recommended number of transmit/alloc queues */
362 uint8_t max_tx_queues; /**< Maximum supported transmit/alloc queues */
364 uint32_t tx_size; /**< Size of each transmit queue */
365 uint32_t rx_size; /**< Size of each receive queue */
366 uint32_t alloc_size; /**< Size of each alloc queue */
367 uint32_t free_size; /**< Size of each free queue */
369 /* Used by Ethtool */
370 phys_addr_t req_phys;
371 phys_addr_t resp_phys;
372 phys_addr_t sync_phys;
375 /* mbuf mempool (used when a single memory area is supported) */
377 phys_addr_t mbuf_phys;
380 struct rte_avp_mempool_info pool[RTE_AVP_MAX_MEMPOOLS];
384 char ethaddr[ETH_ALEN];
386 char ethaddr[ETHER_ADDR_LEN];
389 uint8_t mode; /**< device mode, i.e guest, host, trace */
392 unsigned int mbuf_size;
395 * unique id to differentiate between two instantiations of the same
396 * AVP device (i.e., the guest needs to know if the device has been
397 * deleted and recreated).
401 uint32_t max_rx_pkt_len; /**< Maximum receive unit size */
404 #define RTE_AVP_MAX_QUEUES 8 /**< Maximum number of queues per device */
406 /** Maximum number of chained mbufs in a packet */
407 #define RTE_AVP_MAX_MBUF_SEGMENTS 5
409 #define RTE_AVP_DEVICE "avp"
411 #define RTE_AVP_IOCTL_TEST _IOWR(0, 1, int)
412 #define RTE_AVP_IOCTL_CREATE _IOWR(0, 2, struct rte_avp_device_info)
413 #define RTE_AVP_IOCTL_RELEASE _IOWR(0, 3, struct rte_avp_device_info)
414 #define RTE_AVP_IOCTL_QUERY _IOWR(0, 4, struct rte_avp_device_config)
416 #endif /* _RTE_AVP_COMMON_H_ */