4 * Copyright (c) 2015-2016 Amazon.com, Inc. or its affiliates.
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions
11 * * Redistributions of source code must retain the above copyright
12 * notice, this list of conditions and the following disclaimer.
13 * * Redistributions in binary form must reproduce the above copyright
14 * notice, this list of conditions and the following disclaimer in
15 * the documentation and/or other materials provided with the
17 * * Neither the name of copyright holder nor the names of its
18 * contributors may be used to endorse or promote products derived
19 * from this software without specific prior written permission.
21 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
22 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
23 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
24 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
25 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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27 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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29 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
30 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
31 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
34 #include <rte_string_fns.h>
35 #include <rte_ether.h>
36 #include <rte_ethdev_driver.h>
37 #include <rte_ethdev_pci.h>
39 #include <rte_atomic.h>
41 #include <rte_errno.h>
42 #include <rte_version.h>
43 #include <rte_eal_memconfig.h>
46 #include "ena_ethdev.h"
48 #include "ena_platform.h"
50 #include "ena_eth_com.h"
52 #include <ena_common_defs.h>
53 #include <ena_regs_defs.h>
54 #include <ena_admin_defs.h>
55 #include <ena_eth_io_defs.h>
57 #define DRV_MODULE_VER_MAJOR 2
58 #define DRV_MODULE_VER_MINOR 0
59 #define DRV_MODULE_VER_SUBMINOR 0
61 #define ENA_IO_TXQ_IDX(q) (2 * (q))
62 #define ENA_IO_RXQ_IDX(q) (2 * (q) + 1)
63 /*reverse version of ENA_IO_RXQ_IDX*/
64 #define ENA_IO_RXQ_IDX_REV(q) ((q - 1) / 2)
66 /* While processing submitted and completed descriptors (rx and tx path
67 * respectively) in a loop it is desired to:
68 * - perform batch submissions while populating sumbissmion queue
69 * - avoid blocking transmission of other packets during cleanup phase
70 * Hence the utilization ratio of 1/8 of a queue size.
72 #define ENA_RING_DESCS_RATIO(ring_size) (ring_size / 8)
74 #define __MERGE_64B_H_L(h, l) (((uint64_t)h << 32) | l)
75 #define TEST_BIT(val, bit_shift) (val & (1UL << bit_shift))
77 #define GET_L4_HDR_LEN(mbuf) \
78 ((rte_pktmbuf_mtod_offset(mbuf, struct rte_tcp_hdr *, \
79 mbuf->l3_len + mbuf->l2_len)->data_off) >> 4)
81 #define ENA_RX_RSS_TABLE_LOG_SIZE 7
82 #define ENA_RX_RSS_TABLE_SIZE (1 << ENA_RX_RSS_TABLE_LOG_SIZE)
83 #define ENA_HASH_KEY_SIZE 40
84 #define ETH_GSTRING_LEN 32
86 #define ARRAY_SIZE(x) (sizeof(x) / sizeof((x)[0]))
88 #define ENA_MIN_RING_DESC 128
90 enum ethtool_stringset {
96 char name[ETH_GSTRING_LEN];
100 #define ENA_STAT_ENTRY(stat, stat_type) { \
102 .stat_offset = offsetof(struct ena_stats_##stat_type, stat) \
105 #define ENA_STAT_RX_ENTRY(stat) \
106 ENA_STAT_ENTRY(stat, rx)
108 #define ENA_STAT_TX_ENTRY(stat) \
109 ENA_STAT_ENTRY(stat, tx)
111 #define ENA_STAT_GLOBAL_ENTRY(stat) \
112 ENA_STAT_ENTRY(stat, dev)
114 #define ENA_MAX_RING_SIZE_RX 8192
115 #define ENA_MAX_RING_SIZE_TX 1024
118 * Each rte_memzone should have unique name.
119 * To satisfy it, count number of allocation and add it to name.
121 uint32_t ena_alloc_cnt;
123 static const struct ena_stats ena_stats_global_strings[] = {
124 ENA_STAT_GLOBAL_ENTRY(wd_expired),
125 ENA_STAT_GLOBAL_ENTRY(dev_start),
126 ENA_STAT_GLOBAL_ENTRY(dev_stop),
129 static const struct ena_stats ena_stats_tx_strings[] = {
130 ENA_STAT_TX_ENTRY(cnt),
131 ENA_STAT_TX_ENTRY(bytes),
132 ENA_STAT_TX_ENTRY(prepare_ctx_err),
133 ENA_STAT_TX_ENTRY(linearize),
134 ENA_STAT_TX_ENTRY(linearize_failed),
135 ENA_STAT_TX_ENTRY(tx_poll),
136 ENA_STAT_TX_ENTRY(doorbells),
137 ENA_STAT_TX_ENTRY(bad_req_id),
138 ENA_STAT_TX_ENTRY(available_desc),
141 static const struct ena_stats ena_stats_rx_strings[] = {
142 ENA_STAT_RX_ENTRY(cnt),
143 ENA_STAT_RX_ENTRY(bytes),
144 ENA_STAT_RX_ENTRY(refill_partial),
145 ENA_STAT_RX_ENTRY(bad_csum),
146 ENA_STAT_RX_ENTRY(mbuf_alloc_fail),
147 ENA_STAT_RX_ENTRY(bad_desc_num),
148 ENA_STAT_RX_ENTRY(bad_req_id),
151 #define ENA_STATS_ARRAY_GLOBAL ARRAY_SIZE(ena_stats_global_strings)
152 #define ENA_STATS_ARRAY_TX ARRAY_SIZE(ena_stats_tx_strings)
153 #define ENA_STATS_ARRAY_RX ARRAY_SIZE(ena_stats_rx_strings)
155 #define QUEUE_OFFLOADS (DEV_TX_OFFLOAD_TCP_CKSUM |\
156 DEV_TX_OFFLOAD_UDP_CKSUM |\
157 DEV_TX_OFFLOAD_IPV4_CKSUM |\
158 DEV_TX_OFFLOAD_TCP_TSO)
159 #define MBUF_OFFLOADS (PKT_TX_L4_MASK |\
163 /** Vendor ID used by Amazon devices */
164 #define PCI_VENDOR_ID_AMAZON 0x1D0F
165 /** Amazon devices */
166 #define PCI_DEVICE_ID_ENA_VF 0xEC20
167 #define PCI_DEVICE_ID_ENA_LLQ_VF 0xEC21
169 #define ENA_TX_OFFLOAD_MASK (\
176 #define ENA_TX_OFFLOAD_NOTSUP_MASK \
177 (PKT_TX_OFFLOAD_MASK ^ ENA_TX_OFFLOAD_MASK)
179 int ena_logtype_init;
180 int ena_logtype_driver;
182 static const struct rte_pci_id pci_id_ena_map[] = {
183 { RTE_PCI_DEVICE(PCI_VENDOR_ID_AMAZON, PCI_DEVICE_ID_ENA_VF) },
184 { RTE_PCI_DEVICE(PCI_VENDOR_ID_AMAZON, PCI_DEVICE_ID_ENA_LLQ_VF) },
188 static struct ena_aenq_handlers aenq_handlers;
190 static int ena_device_init(struct ena_com_dev *ena_dev,
191 struct ena_com_dev_get_features_ctx *get_feat_ctx,
193 static int ena_dev_configure(struct rte_eth_dev *dev);
194 static uint16_t eth_ena_xmit_pkts(void *tx_queue, struct rte_mbuf **tx_pkts,
196 static uint16_t eth_ena_prep_pkts(void *tx_queue, struct rte_mbuf **tx_pkts,
198 static int ena_tx_queue_setup(struct rte_eth_dev *dev, uint16_t queue_idx,
199 uint16_t nb_desc, unsigned int socket_id,
200 const struct rte_eth_txconf *tx_conf);
201 static int ena_rx_queue_setup(struct rte_eth_dev *dev, uint16_t queue_idx,
202 uint16_t nb_desc, unsigned int socket_id,
203 const struct rte_eth_rxconf *rx_conf,
204 struct rte_mempool *mp);
205 static uint16_t eth_ena_recv_pkts(void *rx_queue,
206 struct rte_mbuf **rx_pkts, uint16_t nb_pkts);
207 static int ena_populate_rx_queue(struct ena_ring *rxq, unsigned int count);
208 static void ena_init_rings(struct ena_adapter *adapter);
209 static int ena_mtu_set(struct rte_eth_dev *dev, uint16_t mtu);
210 static int ena_start(struct rte_eth_dev *dev);
211 static void ena_stop(struct rte_eth_dev *dev);
212 static void ena_close(struct rte_eth_dev *dev);
213 static int ena_dev_reset(struct rte_eth_dev *dev);
214 static int ena_stats_get(struct rte_eth_dev *dev, struct rte_eth_stats *stats);
215 static void ena_rx_queue_release_all(struct rte_eth_dev *dev);
216 static void ena_tx_queue_release_all(struct rte_eth_dev *dev);
217 static void ena_rx_queue_release(void *queue);
218 static void ena_tx_queue_release(void *queue);
219 static void ena_rx_queue_release_bufs(struct ena_ring *ring);
220 static void ena_tx_queue_release_bufs(struct ena_ring *ring);
221 static int ena_link_update(struct rte_eth_dev *dev,
222 int wait_to_complete);
223 static int ena_create_io_queue(struct ena_ring *ring);
224 static void ena_queue_stop(struct ena_ring *ring);
225 static void ena_queue_stop_all(struct rte_eth_dev *dev,
226 enum ena_ring_type ring_type);
227 static int ena_queue_start(struct ena_ring *ring);
228 static int ena_queue_start_all(struct rte_eth_dev *dev,
229 enum ena_ring_type ring_type);
230 static void ena_stats_restart(struct rte_eth_dev *dev);
231 static void ena_infos_get(struct rte_eth_dev *dev,
232 struct rte_eth_dev_info *dev_info);
233 static int ena_rss_reta_update(struct rte_eth_dev *dev,
234 struct rte_eth_rss_reta_entry64 *reta_conf,
236 static int ena_rss_reta_query(struct rte_eth_dev *dev,
237 struct rte_eth_rss_reta_entry64 *reta_conf,
239 static void ena_interrupt_handler_rte(void *cb_arg);
240 static void ena_timer_wd_callback(struct rte_timer *timer, void *arg);
241 static void ena_destroy_device(struct rte_eth_dev *eth_dev);
242 static int eth_ena_dev_init(struct rte_eth_dev *eth_dev);
243 static int ena_xstats_get_names(struct rte_eth_dev *dev,
244 struct rte_eth_xstat_name *xstats_names,
246 static int ena_xstats_get(struct rte_eth_dev *dev,
247 struct rte_eth_xstat *stats,
249 static int ena_xstats_get_by_id(struct rte_eth_dev *dev,
254 static const struct eth_dev_ops ena_dev_ops = {
255 .dev_configure = ena_dev_configure,
256 .dev_infos_get = ena_infos_get,
257 .rx_queue_setup = ena_rx_queue_setup,
258 .tx_queue_setup = ena_tx_queue_setup,
259 .dev_start = ena_start,
260 .dev_stop = ena_stop,
261 .link_update = ena_link_update,
262 .stats_get = ena_stats_get,
263 .xstats_get_names = ena_xstats_get_names,
264 .xstats_get = ena_xstats_get,
265 .xstats_get_by_id = ena_xstats_get_by_id,
266 .mtu_set = ena_mtu_set,
267 .rx_queue_release = ena_rx_queue_release,
268 .tx_queue_release = ena_tx_queue_release,
269 .dev_close = ena_close,
270 .dev_reset = ena_dev_reset,
271 .reta_update = ena_rss_reta_update,
272 .reta_query = ena_rss_reta_query,
275 #define NUMA_NO_NODE SOCKET_ID_ANY
277 static inline int ena_cpu_to_node(int cpu)
279 struct rte_config *config = rte_eal_get_configuration();
280 struct rte_fbarray *arr = &config->mem_config->memzones;
281 const struct rte_memzone *mz;
283 if (unlikely(cpu >= RTE_MAX_MEMZONE))
286 mz = rte_fbarray_get(arr, cpu);
288 return mz->socket_id;
291 static inline void ena_rx_mbuf_prepare(struct rte_mbuf *mbuf,
292 struct ena_com_rx_ctx *ena_rx_ctx)
294 uint64_t ol_flags = 0;
295 uint32_t packet_type = 0;
297 if (ena_rx_ctx->l4_proto == ENA_ETH_IO_L4_PROTO_TCP)
298 packet_type |= RTE_PTYPE_L4_TCP;
299 else if (ena_rx_ctx->l4_proto == ENA_ETH_IO_L4_PROTO_UDP)
300 packet_type |= RTE_PTYPE_L4_UDP;
302 if (ena_rx_ctx->l3_proto == ENA_ETH_IO_L3_PROTO_IPV4)
303 packet_type |= RTE_PTYPE_L3_IPV4;
304 else if (ena_rx_ctx->l3_proto == ENA_ETH_IO_L3_PROTO_IPV6)
305 packet_type |= RTE_PTYPE_L3_IPV6;
307 if (unlikely(ena_rx_ctx->l4_csum_err))
308 ol_flags |= PKT_RX_L4_CKSUM_BAD;
309 if (unlikely(ena_rx_ctx->l3_csum_err))
310 ol_flags |= PKT_RX_IP_CKSUM_BAD;
312 mbuf->ol_flags = ol_flags;
313 mbuf->packet_type = packet_type;
316 static inline void ena_tx_mbuf_prepare(struct rte_mbuf *mbuf,
317 struct ena_com_tx_ctx *ena_tx_ctx,
318 uint64_t queue_offloads)
320 struct ena_com_tx_meta *ena_meta = &ena_tx_ctx->ena_meta;
322 if ((mbuf->ol_flags & MBUF_OFFLOADS) &&
323 (queue_offloads & QUEUE_OFFLOADS)) {
324 /* check if TSO is required */
325 if ((mbuf->ol_flags & PKT_TX_TCP_SEG) &&
326 (queue_offloads & DEV_TX_OFFLOAD_TCP_TSO)) {
327 ena_tx_ctx->tso_enable = true;
329 ena_meta->l4_hdr_len = GET_L4_HDR_LEN(mbuf);
332 /* check if L3 checksum is needed */
333 if ((mbuf->ol_flags & PKT_TX_IP_CKSUM) &&
334 (queue_offloads & DEV_TX_OFFLOAD_IPV4_CKSUM))
335 ena_tx_ctx->l3_csum_enable = true;
337 if (mbuf->ol_flags & PKT_TX_IPV6) {
338 ena_tx_ctx->l3_proto = ENA_ETH_IO_L3_PROTO_IPV6;
340 ena_tx_ctx->l3_proto = ENA_ETH_IO_L3_PROTO_IPV4;
342 /* set don't fragment (DF) flag */
343 if (mbuf->packet_type &
344 (RTE_PTYPE_L4_NONFRAG
345 | RTE_PTYPE_INNER_L4_NONFRAG))
346 ena_tx_ctx->df = true;
349 /* check if L4 checksum is needed */
350 if ((mbuf->ol_flags & PKT_TX_TCP_CKSUM) &&
351 (queue_offloads & DEV_TX_OFFLOAD_TCP_CKSUM)) {
352 ena_tx_ctx->l4_proto = ENA_ETH_IO_L4_PROTO_TCP;
353 ena_tx_ctx->l4_csum_enable = true;
354 } else if ((mbuf->ol_flags & PKT_TX_UDP_CKSUM) &&
355 (queue_offloads & DEV_TX_OFFLOAD_UDP_CKSUM)) {
356 ena_tx_ctx->l4_proto = ENA_ETH_IO_L4_PROTO_UDP;
357 ena_tx_ctx->l4_csum_enable = true;
359 ena_tx_ctx->l4_proto = ENA_ETH_IO_L4_PROTO_UNKNOWN;
360 ena_tx_ctx->l4_csum_enable = false;
363 ena_meta->mss = mbuf->tso_segsz;
364 ena_meta->l3_hdr_len = mbuf->l3_len;
365 ena_meta->l3_hdr_offset = mbuf->l2_len;
367 ena_tx_ctx->meta_valid = true;
369 ena_tx_ctx->meta_valid = false;
373 static inline int validate_rx_req_id(struct ena_ring *rx_ring, uint16_t req_id)
375 if (likely(req_id < rx_ring->ring_size))
378 RTE_LOG(ERR, PMD, "Invalid rx req_id: %hu\n", req_id);
380 rx_ring->adapter->reset_reason = ENA_REGS_RESET_INV_RX_REQ_ID;
381 rx_ring->adapter->trigger_reset = true;
382 ++rx_ring->rx_stats.bad_req_id;
387 static int validate_tx_req_id(struct ena_ring *tx_ring, u16 req_id)
389 struct ena_tx_buffer *tx_info = NULL;
391 if (likely(req_id < tx_ring->ring_size)) {
392 tx_info = &tx_ring->tx_buffer_info[req_id];
393 if (likely(tx_info->mbuf))
398 RTE_LOG(ERR, PMD, "tx_info doesn't have valid mbuf\n");
400 RTE_LOG(ERR, PMD, "Invalid req_id: %hu\n", req_id);
402 /* Trigger device reset */
403 ++tx_ring->tx_stats.bad_req_id;
404 tx_ring->adapter->reset_reason = ENA_REGS_RESET_INV_TX_REQ_ID;
405 tx_ring->adapter->trigger_reset = true;
409 static void ena_config_host_info(struct ena_com_dev *ena_dev)
411 struct ena_admin_host_info *host_info;
414 /* Allocate only the host info */
415 rc = ena_com_allocate_host_info(ena_dev);
417 RTE_LOG(ERR, PMD, "Cannot allocate host info\n");
421 host_info = ena_dev->host_attr.host_info;
423 host_info->os_type = ENA_ADMIN_OS_DPDK;
424 host_info->kernel_ver = RTE_VERSION;
425 strlcpy((char *)host_info->kernel_ver_str, rte_version(),
426 sizeof(host_info->kernel_ver_str));
427 host_info->os_dist = RTE_VERSION;
428 strlcpy((char *)host_info->os_dist_str, rte_version(),
429 sizeof(host_info->os_dist_str));
430 host_info->driver_version =
431 (DRV_MODULE_VER_MAJOR) |
432 (DRV_MODULE_VER_MINOR << ENA_ADMIN_HOST_INFO_MINOR_SHIFT) |
433 (DRV_MODULE_VER_SUBMINOR <<
434 ENA_ADMIN_HOST_INFO_SUB_MINOR_SHIFT);
435 host_info->num_cpus = rte_lcore_count();
437 rc = ena_com_set_host_attributes(ena_dev);
439 if (rc == -ENA_COM_UNSUPPORTED)
440 RTE_LOG(WARNING, PMD, "Cannot set host attributes\n");
442 RTE_LOG(ERR, PMD, "Cannot set host attributes\n");
450 ena_com_delete_host_info(ena_dev);
453 /* This function calculates the number of xstats based on the current config */
454 static unsigned int ena_xstats_calc_num(struct rte_eth_dev *dev)
456 return ENA_STATS_ARRAY_GLOBAL +
457 (dev->data->nb_tx_queues * ENA_STATS_ARRAY_TX) +
458 (dev->data->nb_rx_queues * ENA_STATS_ARRAY_RX);
461 static void ena_config_debug_area(struct ena_adapter *adapter)
466 ss_count = ena_xstats_calc_num(adapter->rte_dev);
468 /* allocate 32 bytes for each string and 64bit for the value */
469 debug_area_size = ss_count * ETH_GSTRING_LEN + sizeof(u64) * ss_count;
471 rc = ena_com_allocate_debug_area(&adapter->ena_dev, debug_area_size);
473 RTE_LOG(ERR, PMD, "Cannot allocate debug area\n");
477 rc = ena_com_set_host_attributes(&adapter->ena_dev);
479 if (rc == -ENA_COM_UNSUPPORTED)
480 RTE_LOG(WARNING, PMD, "Cannot set host attributes\n");
482 RTE_LOG(ERR, PMD, "Cannot set host attributes\n");
489 ena_com_delete_debug_area(&adapter->ena_dev);
492 static void ena_close(struct rte_eth_dev *dev)
494 struct rte_pci_device *pci_dev = RTE_ETH_DEV_TO_PCI(dev);
495 struct rte_intr_handle *intr_handle = &pci_dev->intr_handle;
496 struct ena_adapter *adapter = dev->data->dev_private;
498 if (adapter->state == ENA_ADAPTER_STATE_RUNNING)
500 adapter->state = ENA_ADAPTER_STATE_CLOSED;
502 ena_rx_queue_release_all(dev);
503 ena_tx_queue_release_all(dev);
505 rte_free(adapter->drv_stats);
506 adapter->drv_stats = NULL;
508 rte_intr_disable(intr_handle);
509 rte_intr_callback_unregister(intr_handle,
510 ena_interrupt_handler_rte,
514 * MAC is not allocated dynamically. Setting NULL should prevent from
515 * release of the resource in the rte_eth_dev_release_port().
517 dev->data->mac_addrs = NULL;
521 ena_dev_reset(struct rte_eth_dev *dev)
525 ena_destroy_device(dev);
526 rc = eth_ena_dev_init(dev);
528 PMD_INIT_LOG(CRIT, "Cannot initialize device");
533 static int ena_rss_reta_update(struct rte_eth_dev *dev,
534 struct rte_eth_rss_reta_entry64 *reta_conf,
537 struct ena_adapter *adapter = dev->data->dev_private;
538 struct ena_com_dev *ena_dev = &adapter->ena_dev;
544 if ((reta_size == 0) || (reta_conf == NULL))
547 if (reta_size > ENA_RX_RSS_TABLE_SIZE) {
548 RTE_LOG(WARNING, PMD,
549 "indirection table %d is bigger than supported (%d)\n",
550 reta_size, ENA_RX_RSS_TABLE_SIZE);
554 for (i = 0 ; i < reta_size ; i++) {
555 /* each reta_conf is for 64 entries.
556 * to support 128 we use 2 conf of 64
558 conf_idx = i / RTE_RETA_GROUP_SIZE;
559 idx = i % RTE_RETA_GROUP_SIZE;
560 if (TEST_BIT(reta_conf[conf_idx].mask, idx)) {
562 ENA_IO_RXQ_IDX(reta_conf[conf_idx].reta[idx]);
564 rc = ena_com_indirect_table_fill_entry(ena_dev,
567 if (unlikely(rc && rc != ENA_COM_UNSUPPORTED)) {
569 "Cannot fill indirect table\n");
575 rc = ena_com_indirect_table_set(ena_dev);
576 if (unlikely(rc && rc != ENA_COM_UNSUPPORTED)) {
577 RTE_LOG(ERR, PMD, "Cannot flush the indirect table\n");
581 RTE_LOG(DEBUG, PMD, "%s(): RSS configured %d entries for port %d\n",
582 __func__, reta_size, adapter->rte_dev->data->port_id);
587 /* Query redirection table. */
588 static int ena_rss_reta_query(struct rte_eth_dev *dev,
589 struct rte_eth_rss_reta_entry64 *reta_conf,
592 struct ena_adapter *adapter = dev->data->dev_private;
593 struct ena_com_dev *ena_dev = &adapter->ena_dev;
596 u32 indirect_table[ENA_RX_RSS_TABLE_SIZE] = {0};
600 if (reta_size == 0 || reta_conf == NULL ||
601 (reta_size > RTE_RETA_GROUP_SIZE && ((reta_conf + 1) == NULL)))
604 rc = ena_com_indirect_table_get(ena_dev, indirect_table);
605 if (unlikely(rc && rc != ENA_COM_UNSUPPORTED)) {
606 RTE_LOG(ERR, PMD, "cannot get indirect table\n");
610 for (i = 0 ; i < reta_size ; i++) {
611 reta_conf_idx = i / RTE_RETA_GROUP_SIZE;
612 reta_idx = i % RTE_RETA_GROUP_SIZE;
613 if (TEST_BIT(reta_conf[reta_conf_idx].mask, reta_idx))
614 reta_conf[reta_conf_idx].reta[reta_idx] =
615 ENA_IO_RXQ_IDX_REV(indirect_table[i]);
621 static int ena_rss_init_default(struct ena_adapter *adapter)
623 struct ena_com_dev *ena_dev = &adapter->ena_dev;
624 uint16_t nb_rx_queues = adapter->rte_dev->data->nb_rx_queues;
628 rc = ena_com_rss_init(ena_dev, ENA_RX_RSS_TABLE_LOG_SIZE);
630 RTE_LOG(ERR, PMD, "Cannot init indirect table\n");
634 for (i = 0; i < ENA_RX_RSS_TABLE_SIZE; i++) {
635 val = i % nb_rx_queues;
636 rc = ena_com_indirect_table_fill_entry(ena_dev, i,
637 ENA_IO_RXQ_IDX(val));
638 if (unlikely(rc && (rc != ENA_COM_UNSUPPORTED))) {
639 RTE_LOG(ERR, PMD, "Cannot fill indirect table\n");
644 rc = ena_com_fill_hash_function(ena_dev, ENA_ADMIN_CRC32, NULL,
645 ENA_HASH_KEY_SIZE, 0xFFFFFFFF);
646 if (unlikely(rc && (rc != ENA_COM_UNSUPPORTED))) {
647 RTE_LOG(INFO, PMD, "Cannot fill hash function\n");
651 rc = ena_com_set_default_hash_ctrl(ena_dev);
652 if (unlikely(rc && (rc != ENA_COM_UNSUPPORTED))) {
653 RTE_LOG(INFO, PMD, "Cannot fill hash control\n");
657 rc = ena_com_indirect_table_set(ena_dev);
658 if (unlikely(rc && (rc != ENA_COM_UNSUPPORTED))) {
659 RTE_LOG(ERR, PMD, "Cannot flush the indirect table\n");
662 RTE_LOG(DEBUG, PMD, "RSS configured for port %d\n",
663 adapter->rte_dev->data->port_id);
668 ena_com_rss_destroy(ena_dev);
674 static void ena_rx_queue_release_all(struct rte_eth_dev *dev)
676 struct ena_ring **queues = (struct ena_ring **)dev->data->rx_queues;
677 int nb_queues = dev->data->nb_rx_queues;
680 for (i = 0; i < nb_queues; i++)
681 ena_rx_queue_release(queues[i]);
684 static void ena_tx_queue_release_all(struct rte_eth_dev *dev)
686 struct ena_ring **queues = (struct ena_ring **)dev->data->tx_queues;
687 int nb_queues = dev->data->nb_tx_queues;
690 for (i = 0; i < nb_queues; i++)
691 ena_tx_queue_release(queues[i]);
694 static void ena_rx_queue_release(void *queue)
696 struct ena_ring *ring = (struct ena_ring *)queue;
698 /* Free ring resources */
699 if (ring->rx_buffer_info)
700 rte_free(ring->rx_buffer_info);
701 ring->rx_buffer_info = NULL;
703 if (ring->rx_refill_buffer)
704 rte_free(ring->rx_refill_buffer);
705 ring->rx_refill_buffer = NULL;
707 if (ring->empty_rx_reqs)
708 rte_free(ring->empty_rx_reqs);
709 ring->empty_rx_reqs = NULL;
711 ring->configured = 0;
713 RTE_LOG(NOTICE, PMD, "RX Queue %d:%d released\n",
714 ring->port_id, ring->id);
717 static void ena_tx_queue_release(void *queue)
719 struct ena_ring *ring = (struct ena_ring *)queue;
721 /* Free ring resources */
722 if (ring->push_buf_intermediate_buf)
723 rte_free(ring->push_buf_intermediate_buf);
725 if (ring->tx_buffer_info)
726 rte_free(ring->tx_buffer_info);
728 if (ring->empty_tx_reqs)
729 rte_free(ring->empty_tx_reqs);
731 ring->empty_tx_reqs = NULL;
732 ring->tx_buffer_info = NULL;
733 ring->push_buf_intermediate_buf = NULL;
735 ring->configured = 0;
737 RTE_LOG(NOTICE, PMD, "TX Queue %d:%d released\n",
738 ring->port_id, ring->id);
741 static void ena_rx_queue_release_bufs(struct ena_ring *ring)
745 for (i = 0; i < ring->ring_size; ++i)
746 if (ring->rx_buffer_info[i]) {
747 rte_mbuf_raw_free(ring->rx_buffer_info[i]);
748 ring->rx_buffer_info[i] = NULL;
752 static void ena_tx_queue_release_bufs(struct ena_ring *ring)
756 for (i = 0; i < ring->ring_size; ++i) {
757 struct ena_tx_buffer *tx_buf = &ring->tx_buffer_info[i];
760 rte_pktmbuf_free(tx_buf->mbuf);
764 static int ena_link_update(struct rte_eth_dev *dev,
765 __rte_unused int wait_to_complete)
767 struct rte_eth_link *link = &dev->data->dev_link;
768 struct ena_adapter *adapter = dev->data->dev_private;
770 link->link_status = adapter->link_status ? ETH_LINK_UP : ETH_LINK_DOWN;
771 link->link_speed = ETH_SPEED_NUM_NONE;
772 link->link_duplex = ETH_LINK_FULL_DUPLEX;
777 static int ena_queue_start_all(struct rte_eth_dev *dev,
778 enum ena_ring_type ring_type)
780 struct ena_adapter *adapter = dev->data->dev_private;
781 struct ena_ring *queues = NULL;
786 if (ring_type == ENA_RING_TYPE_RX) {
787 queues = adapter->rx_ring;
788 nb_queues = dev->data->nb_rx_queues;
790 queues = adapter->tx_ring;
791 nb_queues = dev->data->nb_tx_queues;
793 for (i = 0; i < nb_queues; i++) {
794 if (queues[i].configured) {
795 if (ring_type == ENA_RING_TYPE_RX) {
797 dev->data->rx_queues[i] == &queues[i],
798 "Inconsistent state of rx queues\n");
801 dev->data->tx_queues[i] == &queues[i],
802 "Inconsistent state of tx queues\n");
805 rc = ena_queue_start(&queues[i]);
809 "failed to start queue %d type(%d)",
820 if (queues[i].configured)
821 ena_queue_stop(&queues[i]);
826 static uint32_t ena_get_mtu_conf(struct ena_adapter *adapter)
828 uint32_t max_frame_len = adapter->max_mtu;
830 if (adapter->rte_eth_dev_data->dev_conf.rxmode.offloads &
831 DEV_RX_OFFLOAD_JUMBO_FRAME)
833 adapter->rte_eth_dev_data->dev_conf.rxmode.max_rx_pkt_len;
835 return max_frame_len;
838 static int ena_check_valid_conf(struct ena_adapter *adapter)
840 uint32_t max_frame_len = ena_get_mtu_conf(adapter);
842 if (max_frame_len > adapter->max_mtu || max_frame_len < ENA_MIN_MTU) {
843 PMD_INIT_LOG(ERR, "Unsupported MTU of %d. "
844 "max mtu: %d, min mtu: %d",
845 max_frame_len, adapter->max_mtu, ENA_MIN_MTU);
846 return ENA_COM_UNSUPPORTED;
853 ena_calc_queue_size(struct ena_calc_queue_size_ctx *ctx)
855 struct ena_admin_feature_llq_desc *llq = &ctx->get_feat_ctx->llq;
856 struct ena_com_dev *ena_dev = ctx->ena_dev;
857 uint32_t tx_queue_size = ENA_MAX_RING_SIZE_TX;
858 uint32_t rx_queue_size = ENA_MAX_RING_SIZE_RX;
860 if (ena_dev->supported_features & BIT(ENA_ADMIN_MAX_QUEUES_EXT)) {
861 struct ena_admin_queue_ext_feature_fields *max_queue_ext =
862 &ctx->get_feat_ctx->max_queue_ext.max_queue_ext;
863 rx_queue_size = RTE_MIN(rx_queue_size,
864 max_queue_ext->max_rx_cq_depth);
865 rx_queue_size = RTE_MIN(rx_queue_size,
866 max_queue_ext->max_rx_sq_depth);
867 tx_queue_size = RTE_MIN(tx_queue_size,
868 max_queue_ext->max_tx_cq_depth);
870 if (ena_dev->tx_mem_queue_type ==
871 ENA_ADMIN_PLACEMENT_POLICY_DEV) {
872 tx_queue_size = RTE_MIN(tx_queue_size,
875 tx_queue_size = RTE_MIN(tx_queue_size,
876 max_queue_ext->max_tx_sq_depth);
879 ctx->max_rx_sgl_size = RTE_MIN(ENA_PKT_MAX_BUFS,
880 max_queue_ext->max_per_packet_rx_descs);
881 ctx->max_tx_sgl_size = RTE_MIN(ENA_PKT_MAX_BUFS,
882 max_queue_ext->max_per_packet_tx_descs);
884 struct ena_admin_queue_feature_desc *max_queues =
885 &ctx->get_feat_ctx->max_queues;
886 rx_queue_size = RTE_MIN(rx_queue_size,
887 max_queues->max_cq_depth);
888 rx_queue_size = RTE_MIN(rx_queue_size,
889 max_queues->max_sq_depth);
890 tx_queue_size = RTE_MIN(tx_queue_size,
891 max_queues->max_cq_depth);
893 if (ena_dev->tx_mem_queue_type ==
894 ENA_ADMIN_PLACEMENT_POLICY_DEV) {
895 tx_queue_size = RTE_MIN(tx_queue_size,
898 tx_queue_size = RTE_MIN(tx_queue_size,
899 max_queues->max_sq_depth);
902 ctx->max_rx_sgl_size = RTE_MIN(ENA_PKT_MAX_BUFS,
903 max_queues->max_packet_tx_descs);
904 ctx->max_tx_sgl_size = RTE_MIN(ENA_PKT_MAX_BUFS,
905 max_queues->max_packet_rx_descs);
908 /* Round down to the nearest power of 2 */
909 rx_queue_size = rte_align32prevpow2(rx_queue_size);
910 tx_queue_size = rte_align32prevpow2(tx_queue_size);
912 if (unlikely(rx_queue_size == 0 || tx_queue_size == 0)) {
913 PMD_INIT_LOG(ERR, "Invalid queue size");
917 ctx->rx_queue_size = rx_queue_size;
918 ctx->tx_queue_size = tx_queue_size;
923 static void ena_stats_restart(struct rte_eth_dev *dev)
925 struct ena_adapter *adapter = dev->data->dev_private;
927 rte_atomic64_init(&adapter->drv_stats->ierrors);
928 rte_atomic64_init(&adapter->drv_stats->oerrors);
929 rte_atomic64_init(&adapter->drv_stats->rx_nombuf);
930 rte_atomic64_init(&adapter->drv_stats->rx_drops);
933 static int ena_stats_get(struct rte_eth_dev *dev,
934 struct rte_eth_stats *stats)
936 struct ena_admin_basic_stats ena_stats;
937 struct ena_adapter *adapter = dev->data->dev_private;
938 struct ena_com_dev *ena_dev = &adapter->ena_dev;
943 if (rte_eal_process_type() != RTE_PROC_PRIMARY)
946 memset(&ena_stats, 0, sizeof(ena_stats));
947 rc = ena_com_get_dev_basic_stats(ena_dev, &ena_stats);
949 RTE_LOG(ERR, PMD, "Could not retrieve statistics from ENA\n");
953 /* Set of basic statistics from ENA */
954 stats->ipackets = __MERGE_64B_H_L(ena_stats.rx_pkts_high,
955 ena_stats.rx_pkts_low);
956 stats->opackets = __MERGE_64B_H_L(ena_stats.tx_pkts_high,
957 ena_stats.tx_pkts_low);
958 stats->ibytes = __MERGE_64B_H_L(ena_stats.rx_bytes_high,
959 ena_stats.rx_bytes_low);
960 stats->obytes = __MERGE_64B_H_L(ena_stats.tx_bytes_high,
961 ena_stats.tx_bytes_low);
963 /* Driver related stats */
964 stats->imissed = rte_atomic64_read(&adapter->drv_stats->rx_drops);
965 stats->ierrors = rte_atomic64_read(&adapter->drv_stats->ierrors);
966 stats->oerrors = rte_atomic64_read(&adapter->drv_stats->oerrors);
967 stats->rx_nombuf = rte_atomic64_read(&adapter->drv_stats->rx_nombuf);
969 max_rings_stats = RTE_MIN(dev->data->nb_rx_queues,
970 RTE_ETHDEV_QUEUE_STAT_CNTRS);
971 for (i = 0; i < max_rings_stats; ++i) {
972 struct ena_stats_rx *rx_stats = &adapter->rx_ring[i].rx_stats;
974 stats->q_ibytes[i] = rx_stats->bytes;
975 stats->q_ipackets[i] = rx_stats->cnt;
976 stats->q_errors[i] = rx_stats->bad_desc_num +
977 rx_stats->bad_req_id;
980 max_rings_stats = RTE_MIN(dev->data->nb_tx_queues,
981 RTE_ETHDEV_QUEUE_STAT_CNTRS);
982 for (i = 0; i < max_rings_stats; ++i) {
983 struct ena_stats_tx *tx_stats = &adapter->tx_ring[i].tx_stats;
985 stats->q_obytes[i] = tx_stats->bytes;
986 stats->q_opackets[i] = tx_stats->cnt;
992 static int ena_mtu_set(struct rte_eth_dev *dev, uint16_t mtu)
994 struct ena_adapter *adapter;
995 struct ena_com_dev *ena_dev;
998 ena_assert_msg(dev->data != NULL, "Uninitialized device\n");
999 ena_assert_msg(dev->data->dev_private != NULL, "Uninitialized device\n");
1000 adapter = dev->data->dev_private;
1002 ena_dev = &adapter->ena_dev;
1003 ena_assert_msg(ena_dev != NULL, "Uninitialized device\n");
1005 if (mtu > ena_get_mtu_conf(adapter) || mtu < ENA_MIN_MTU) {
1007 "Invalid MTU setting. new_mtu: %d "
1008 "max mtu: %d min mtu: %d\n",
1009 mtu, ena_get_mtu_conf(adapter), ENA_MIN_MTU);
1013 rc = ena_com_set_dev_mtu(ena_dev, mtu);
1015 RTE_LOG(ERR, PMD, "Could not set MTU: %d\n", mtu);
1017 RTE_LOG(NOTICE, PMD, "Set MTU: %d\n", mtu);
1022 static int ena_start(struct rte_eth_dev *dev)
1024 struct ena_adapter *adapter = dev->data->dev_private;
1028 rc = ena_check_valid_conf(adapter);
1032 rc = ena_queue_start_all(dev, ENA_RING_TYPE_RX);
1036 rc = ena_queue_start_all(dev, ENA_RING_TYPE_TX);
1040 if (adapter->rte_dev->data->dev_conf.rxmode.mq_mode &
1041 ETH_MQ_RX_RSS_FLAG && adapter->rte_dev->data->nb_rx_queues > 0) {
1042 rc = ena_rss_init_default(adapter);
1047 ena_stats_restart(dev);
1049 adapter->timestamp_wd = rte_get_timer_cycles();
1050 adapter->keep_alive_timeout = ENA_DEVICE_KALIVE_TIMEOUT;
1052 ticks = rte_get_timer_hz();
1053 rte_timer_reset(&adapter->timer_wd, ticks, PERIODICAL, rte_lcore_id(),
1054 ena_timer_wd_callback, adapter);
1056 ++adapter->dev_stats.dev_start;
1057 adapter->state = ENA_ADAPTER_STATE_RUNNING;
1062 ena_queue_stop_all(dev, ENA_RING_TYPE_TX);
1064 ena_queue_stop_all(dev, ENA_RING_TYPE_RX);
1068 static void ena_stop(struct rte_eth_dev *dev)
1070 struct ena_adapter *adapter = dev->data->dev_private;
1071 struct ena_com_dev *ena_dev = &adapter->ena_dev;
1074 rte_timer_stop_sync(&adapter->timer_wd);
1075 ena_queue_stop_all(dev, ENA_RING_TYPE_TX);
1076 ena_queue_stop_all(dev, ENA_RING_TYPE_RX);
1078 if (adapter->trigger_reset) {
1079 rc = ena_com_dev_reset(ena_dev, adapter->reset_reason);
1081 RTE_LOG(ERR, PMD, "Device reset failed rc=%d\n", rc);
1084 ++adapter->dev_stats.dev_stop;
1085 adapter->state = ENA_ADAPTER_STATE_STOPPED;
1088 static int ena_create_io_queue(struct ena_ring *ring)
1090 struct ena_adapter *adapter;
1091 struct ena_com_dev *ena_dev;
1092 struct ena_com_create_io_ctx ctx =
1093 /* policy set to _HOST just to satisfy icc compiler */
1094 { ENA_ADMIN_PLACEMENT_POLICY_HOST,
1100 adapter = ring->adapter;
1101 ena_dev = &adapter->ena_dev;
1103 if (ring->type == ENA_RING_TYPE_TX) {
1104 ena_qid = ENA_IO_TXQ_IDX(ring->id);
1105 ctx.direction = ENA_COM_IO_QUEUE_DIRECTION_TX;
1106 ctx.mem_queue_type = ena_dev->tx_mem_queue_type;
1107 ctx.queue_size = adapter->tx_ring_size;
1108 for (i = 0; i < ring->ring_size; i++)
1109 ring->empty_tx_reqs[i] = i;
1111 ena_qid = ENA_IO_RXQ_IDX(ring->id);
1112 ctx.direction = ENA_COM_IO_QUEUE_DIRECTION_RX;
1113 ctx.queue_size = adapter->rx_ring_size;
1114 for (i = 0; i < ring->ring_size; i++)
1115 ring->empty_rx_reqs[i] = i;
1118 ctx.msix_vector = -1; /* interrupts not used */
1119 ctx.numa_node = ena_cpu_to_node(ring->id);
1121 rc = ena_com_create_io_queue(ena_dev, &ctx);
1124 "failed to create io queue #%d (qid:%d) rc: %d\n",
1125 ring->id, ena_qid, rc);
1129 rc = ena_com_get_io_handlers(ena_dev, ena_qid,
1130 &ring->ena_com_io_sq,
1131 &ring->ena_com_io_cq);
1134 "Failed to get io queue handlers. queue num %d rc: %d\n",
1136 ena_com_destroy_io_queue(ena_dev, ena_qid);
1140 if (ring->type == ENA_RING_TYPE_TX)
1141 ena_com_update_numa_node(ring->ena_com_io_cq, ctx.numa_node);
1146 static void ena_queue_stop(struct ena_ring *ring)
1148 struct ena_com_dev *ena_dev = &ring->adapter->ena_dev;
1150 if (ring->type == ENA_RING_TYPE_RX) {
1151 ena_com_destroy_io_queue(ena_dev, ENA_IO_RXQ_IDX(ring->id));
1152 ena_rx_queue_release_bufs(ring);
1154 ena_com_destroy_io_queue(ena_dev, ENA_IO_TXQ_IDX(ring->id));
1155 ena_tx_queue_release_bufs(ring);
1159 static void ena_queue_stop_all(struct rte_eth_dev *dev,
1160 enum ena_ring_type ring_type)
1162 struct ena_adapter *adapter = dev->data->dev_private;
1163 struct ena_ring *queues = NULL;
1164 uint16_t nb_queues, i;
1166 if (ring_type == ENA_RING_TYPE_RX) {
1167 queues = adapter->rx_ring;
1168 nb_queues = dev->data->nb_rx_queues;
1170 queues = adapter->tx_ring;
1171 nb_queues = dev->data->nb_tx_queues;
1174 for (i = 0; i < nb_queues; ++i)
1175 if (queues[i].configured)
1176 ena_queue_stop(&queues[i]);
1179 static int ena_queue_start(struct ena_ring *ring)
1183 ena_assert_msg(ring->configured == 1,
1184 "Trying to start unconfigured queue\n");
1186 rc = ena_create_io_queue(ring);
1188 PMD_INIT_LOG(ERR, "Failed to create IO queue!");
1192 ring->next_to_clean = 0;
1193 ring->next_to_use = 0;
1195 if (ring->type == ENA_RING_TYPE_TX) {
1196 ring->tx_stats.available_desc =
1197 ena_com_free_desc(ring->ena_com_io_sq);
1201 bufs_num = ring->ring_size - 1;
1202 rc = ena_populate_rx_queue(ring, bufs_num);
1203 if (rc != bufs_num) {
1204 ena_com_destroy_io_queue(&ring->adapter->ena_dev,
1205 ENA_IO_RXQ_IDX(ring->id));
1206 PMD_INIT_LOG(ERR, "Failed to populate rx ring !");
1207 return ENA_COM_FAULT;
1213 static int ena_tx_queue_setup(struct rte_eth_dev *dev,
1216 __rte_unused unsigned int socket_id,
1217 const struct rte_eth_txconf *tx_conf)
1219 struct ena_ring *txq = NULL;
1220 struct ena_adapter *adapter = dev->data->dev_private;
1223 txq = &adapter->tx_ring[queue_idx];
1225 if (txq->configured) {
1227 "API violation. Queue %d is already configured\n",
1229 return ENA_COM_FAULT;
1232 if (!rte_is_power_of_2(nb_desc)) {
1234 "Unsupported size of TX queue: %d is not a power of 2.\n",
1239 if (nb_desc > adapter->tx_ring_size) {
1241 "Unsupported size of TX queue (max size: %d)\n",
1242 adapter->tx_ring_size);
1246 if (nb_desc == RTE_ETH_DEV_FALLBACK_TX_RINGSIZE)
1247 nb_desc = adapter->tx_ring_size;
1249 txq->port_id = dev->data->port_id;
1250 txq->next_to_clean = 0;
1251 txq->next_to_use = 0;
1252 txq->ring_size = nb_desc;
1254 txq->tx_buffer_info = rte_zmalloc("txq->tx_buffer_info",
1255 sizeof(struct ena_tx_buffer) *
1257 RTE_CACHE_LINE_SIZE);
1258 if (!txq->tx_buffer_info) {
1259 RTE_LOG(ERR, PMD, "failed to alloc mem for tx buffer info\n");
1263 txq->empty_tx_reqs = rte_zmalloc("txq->empty_tx_reqs",
1264 sizeof(u16) * txq->ring_size,
1265 RTE_CACHE_LINE_SIZE);
1266 if (!txq->empty_tx_reqs) {
1267 RTE_LOG(ERR, PMD, "failed to alloc mem for tx reqs\n");
1268 rte_free(txq->tx_buffer_info);
1272 txq->push_buf_intermediate_buf =
1273 rte_zmalloc("txq->push_buf_intermediate_buf",
1274 txq->tx_max_header_size,
1275 RTE_CACHE_LINE_SIZE);
1276 if (!txq->push_buf_intermediate_buf) {
1277 RTE_LOG(ERR, PMD, "failed to alloc push buff for LLQ\n");
1278 rte_free(txq->tx_buffer_info);
1279 rte_free(txq->empty_tx_reqs);
1283 for (i = 0; i < txq->ring_size; i++)
1284 txq->empty_tx_reqs[i] = i;
1286 if (tx_conf != NULL) {
1288 tx_conf->offloads | dev->data->dev_conf.txmode.offloads;
1290 /* Store pointer to this queue in upper layer */
1291 txq->configured = 1;
1292 dev->data->tx_queues[queue_idx] = txq;
1297 static int ena_rx_queue_setup(struct rte_eth_dev *dev,
1300 __rte_unused unsigned int socket_id,
1301 __rte_unused const struct rte_eth_rxconf *rx_conf,
1302 struct rte_mempool *mp)
1304 struct ena_adapter *adapter = dev->data->dev_private;
1305 struct ena_ring *rxq = NULL;
1308 rxq = &adapter->rx_ring[queue_idx];
1309 if (rxq->configured) {
1311 "API violation. Queue %d is already configured\n",
1313 return ENA_COM_FAULT;
1316 if (nb_desc == RTE_ETH_DEV_FALLBACK_RX_RINGSIZE)
1317 nb_desc = adapter->rx_ring_size;
1319 if (!rte_is_power_of_2(nb_desc)) {
1321 "Unsupported size of RX queue: %d is not a power of 2.\n",
1326 if (nb_desc > adapter->rx_ring_size) {
1328 "Unsupported size of RX queue (max size: %d)\n",
1329 adapter->rx_ring_size);
1333 rxq->port_id = dev->data->port_id;
1334 rxq->next_to_clean = 0;
1335 rxq->next_to_use = 0;
1336 rxq->ring_size = nb_desc;
1339 rxq->rx_buffer_info = rte_zmalloc("rxq->buffer_info",
1340 sizeof(struct rte_mbuf *) * nb_desc,
1341 RTE_CACHE_LINE_SIZE);
1342 if (!rxq->rx_buffer_info) {
1343 RTE_LOG(ERR, PMD, "failed to alloc mem for rx buffer info\n");
1347 rxq->rx_refill_buffer = rte_zmalloc("rxq->rx_refill_buffer",
1348 sizeof(struct rte_mbuf *) * nb_desc,
1349 RTE_CACHE_LINE_SIZE);
1351 if (!rxq->rx_refill_buffer) {
1352 RTE_LOG(ERR, PMD, "failed to alloc mem for rx refill buffer\n");
1353 rte_free(rxq->rx_buffer_info);
1354 rxq->rx_buffer_info = NULL;
1358 rxq->empty_rx_reqs = rte_zmalloc("rxq->empty_rx_reqs",
1359 sizeof(uint16_t) * nb_desc,
1360 RTE_CACHE_LINE_SIZE);
1361 if (!rxq->empty_rx_reqs) {
1362 RTE_LOG(ERR, PMD, "failed to alloc mem for empty rx reqs\n");
1363 rte_free(rxq->rx_buffer_info);
1364 rxq->rx_buffer_info = NULL;
1365 rte_free(rxq->rx_refill_buffer);
1366 rxq->rx_refill_buffer = NULL;
1370 for (i = 0; i < nb_desc; i++)
1371 rxq->empty_rx_reqs[i] = i;
1373 /* Store pointer to this queue in upper layer */
1374 rxq->configured = 1;
1375 dev->data->rx_queues[queue_idx] = rxq;
1380 static int ena_populate_rx_queue(struct ena_ring *rxq, unsigned int count)
1384 uint16_t ring_size = rxq->ring_size;
1385 uint16_t ring_mask = ring_size - 1;
1386 uint16_t next_to_use = rxq->next_to_use;
1387 uint16_t in_use, req_id;
1388 struct rte_mbuf **mbufs = rxq->rx_refill_buffer;
1390 if (unlikely(!count))
1393 in_use = rxq->next_to_use - rxq->next_to_clean;
1394 ena_assert_msg(((in_use + count) < ring_size), "bad ring state\n");
1396 /* get resources for incoming packets */
1397 rc = rte_mempool_get_bulk(rxq->mb_pool, (void **)mbufs, count);
1398 if (unlikely(rc < 0)) {
1399 rte_atomic64_inc(&rxq->adapter->drv_stats->rx_nombuf);
1400 ++rxq->rx_stats.mbuf_alloc_fail;
1401 PMD_RX_LOG(DEBUG, "there are no enough free buffers");
1405 for (i = 0; i < count; i++) {
1406 uint16_t next_to_use_masked = next_to_use & ring_mask;
1407 struct rte_mbuf *mbuf = mbufs[i];
1408 struct ena_com_buf ebuf;
1410 if (likely((i + 4) < count))
1411 rte_prefetch0(mbufs[i + 4]);
1413 req_id = rxq->empty_rx_reqs[next_to_use_masked];
1414 rc = validate_rx_req_id(rxq, req_id);
1415 if (unlikely(rc < 0))
1417 rxq->rx_buffer_info[req_id] = mbuf;
1419 /* prepare physical address for DMA transaction */
1420 ebuf.paddr = mbuf->buf_iova + RTE_PKTMBUF_HEADROOM;
1421 ebuf.len = mbuf->buf_len - RTE_PKTMBUF_HEADROOM;
1422 /* pass resource to device */
1423 rc = ena_com_add_single_rx_desc(rxq->ena_com_io_sq,
1426 RTE_LOG(WARNING, PMD, "failed adding rx desc\n");
1427 rxq->rx_buffer_info[req_id] = NULL;
1433 if (unlikely(i < count)) {
1434 RTE_LOG(WARNING, PMD, "refilled rx qid %d with only %d "
1435 "buffers (from %d)\n", rxq->id, i, count);
1436 rte_mempool_put_bulk(rxq->mb_pool, (void **)(&mbufs[i]),
1438 ++rxq->rx_stats.refill_partial;
1441 /* When we submitted free recources to device... */
1442 if (likely(i > 0)) {
1443 /* ...let HW know that it can fill buffers with data
1445 * Add memory barrier to make sure the desc were written before
1449 ena_com_write_sq_doorbell(rxq->ena_com_io_sq);
1451 rxq->next_to_use = next_to_use;
1457 static int ena_device_init(struct ena_com_dev *ena_dev,
1458 struct ena_com_dev_get_features_ctx *get_feat_ctx,
1461 uint32_t aenq_groups;
1463 bool readless_supported;
1465 /* Initialize mmio registers */
1466 rc = ena_com_mmio_reg_read_request_init(ena_dev);
1468 RTE_LOG(ERR, PMD, "failed to init mmio read less\n");
1472 /* The PCIe configuration space revision id indicate if mmio reg
1475 readless_supported =
1476 !(((struct rte_pci_device *)ena_dev->dmadev)->id.class_id
1477 & ENA_MMIO_DISABLE_REG_READ);
1478 ena_com_set_mmio_read_mode(ena_dev, readless_supported);
1481 rc = ena_com_dev_reset(ena_dev, ENA_REGS_RESET_NORMAL);
1483 RTE_LOG(ERR, PMD, "cannot reset device\n");
1484 goto err_mmio_read_less;
1487 /* check FW version */
1488 rc = ena_com_validate_version(ena_dev);
1490 RTE_LOG(ERR, PMD, "device version is too low\n");
1491 goto err_mmio_read_less;
1494 ena_dev->dma_addr_bits = ena_com_get_dma_width(ena_dev);
1496 /* ENA device administration layer init */
1497 rc = ena_com_admin_init(ena_dev, &aenq_handlers);
1500 "cannot initialize ena admin queue with device\n");
1501 goto err_mmio_read_less;
1504 /* To enable the msix interrupts the driver needs to know the number
1505 * of queues. So the driver uses polling mode to retrieve this
1508 ena_com_set_admin_polling_mode(ena_dev, true);
1510 ena_config_host_info(ena_dev);
1512 /* Get Device Attributes and features */
1513 rc = ena_com_get_dev_attr_feat(ena_dev, get_feat_ctx);
1516 "cannot get attribute for ena device rc= %d\n", rc);
1517 goto err_admin_init;
1520 aenq_groups = BIT(ENA_ADMIN_LINK_CHANGE) |
1521 BIT(ENA_ADMIN_NOTIFICATION) |
1522 BIT(ENA_ADMIN_KEEP_ALIVE) |
1523 BIT(ENA_ADMIN_FATAL_ERROR) |
1524 BIT(ENA_ADMIN_WARNING);
1526 aenq_groups &= get_feat_ctx->aenq.supported_groups;
1527 rc = ena_com_set_aenq_config(ena_dev, aenq_groups);
1529 RTE_LOG(ERR, PMD, "Cannot configure aenq groups rc: %d\n", rc);
1530 goto err_admin_init;
1533 *wd_state = !!(aenq_groups & BIT(ENA_ADMIN_KEEP_ALIVE));
1538 ena_com_admin_destroy(ena_dev);
1541 ena_com_mmio_reg_read_request_destroy(ena_dev);
1546 static void ena_interrupt_handler_rte(void *cb_arg)
1548 struct ena_adapter *adapter = cb_arg;
1549 struct ena_com_dev *ena_dev = &adapter->ena_dev;
1551 ena_com_admin_q_comp_intr_handler(ena_dev);
1552 if (likely(adapter->state != ENA_ADAPTER_STATE_CLOSED))
1553 ena_com_aenq_intr_handler(ena_dev, adapter);
1556 static void check_for_missing_keep_alive(struct ena_adapter *adapter)
1558 if (!adapter->wd_state)
1561 if (adapter->keep_alive_timeout == ENA_HW_HINTS_NO_TIMEOUT)
1564 if (unlikely((rte_get_timer_cycles() - adapter->timestamp_wd) >=
1565 adapter->keep_alive_timeout)) {
1566 RTE_LOG(ERR, PMD, "Keep alive timeout\n");
1567 adapter->reset_reason = ENA_REGS_RESET_KEEP_ALIVE_TO;
1568 adapter->trigger_reset = true;
1569 ++adapter->dev_stats.wd_expired;
1573 /* Check if admin queue is enabled */
1574 static void check_for_admin_com_state(struct ena_adapter *adapter)
1576 if (unlikely(!ena_com_get_admin_running_state(&adapter->ena_dev))) {
1577 RTE_LOG(ERR, PMD, "ENA admin queue is not in running state!\n");
1578 adapter->reset_reason = ENA_REGS_RESET_ADMIN_TO;
1579 adapter->trigger_reset = true;
1583 static void ena_timer_wd_callback(__rte_unused struct rte_timer *timer,
1586 struct ena_adapter *adapter = arg;
1587 struct rte_eth_dev *dev = adapter->rte_dev;
1589 check_for_missing_keep_alive(adapter);
1590 check_for_admin_com_state(adapter);
1592 if (unlikely(adapter->trigger_reset)) {
1593 RTE_LOG(ERR, PMD, "Trigger reset is on\n");
1594 _rte_eth_dev_callback_process(dev, RTE_ETH_EVENT_INTR_RESET,
1600 set_default_llq_configurations(struct ena_llq_configurations *llq_config)
1602 llq_config->llq_header_location = ENA_ADMIN_INLINE_HEADER;
1603 llq_config->llq_ring_entry_size = ENA_ADMIN_LIST_ENTRY_SIZE_128B;
1604 llq_config->llq_stride_ctrl = ENA_ADMIN_MULTIPLE_DESCS_PER_ENTRY;
1605 llq_config->llq_num_decs_before_header =
1606 ENA_ADMIN_LLQ_NUM_DESCS_BEFORE_HEADER_2;
1607 llq_config->llq_ring_entry_size_value = 128;
1611 ena_set_queues_placement_policy(struct ena_adapter *adapter,
1612 struct ena_com_dev *ena_dev,
1613 struct ena_admin_feature_llq_desc *llq,
1614 struct ena_llq_configurations *llq_default_configurations)
1617 u32 llq_feature_mask;
1619 llq_feature_mask = 1 << ENA_ADMIN_LLQ;
1620 if (!(ena_dev->supported_features & llq_feature_mask)) {
1622 "LLQ is not supported. Fallback to host mode policy.\n");
1623 ena_dev->tx_mem_queue_type = ENA_ADMIN_PLACEMENT_POLICY_HOST;
1627 rc = ena_com_config_dev_mode(ena_dev, llq, llq_default_configurations);
1629 PMD_INIT_LOG(WARNING, "Failed to config dev mode. "
1630 "Fallback to host mode policy.");
1631 ena_dev->tx_mem_queue_type = ENA_ADMIN_PLACEMENT_POLICY_HOST;
1635 /* Nothing to config, exit */
1636 if (ena_dev->tx_mem_queue_type == ENA_ADMIN_PLACEMENT_POLICY_HOST)
1639 if (!adapter->dev_mem_base) {
1640 RTE_LOG(ERR, PMD, "Unable to access LLQ bar resource. "
1641 "Fallback to host mode policy.\n.");
1642 ena_dev->tx_mem_queue_type = ENA_ADMIN_PLACEMENT_POLICY_HOST;
1646 ena_dev->mem_bar = adapter->dev_mem_base;
1651 static int ena_calc_io_queue_num(struct ena_com_dev *ena_dev,
1652 struct ena_com_dev_get_features_ctx *get_feat_ctx)
1654 uint32_t io_tx_sq_num, io_tx_cq_num, io_rx_num, io_queue_num;
1656 /* Regular queues capabilities */
1657 if (ena_dev->supported_features & BIT(ENA_ADMIN_MAX_QUEUES_EXT)) {
1658 struct ena_admin_queue_ext_feature_fields *max_queue_ext =
1659 &get_feat_ctx->max_queue_ext.max_queue_ext;
1660 io_rx_num = RTE_MIN(max_queue_ext->max_rx_sq_num,
1661 max_queue_ext->max_rx_cq_num);
1662 io_tx_sq_num = max_queue_ext->max_tx_sq_num;
1663 io_tx_cq_num = max_queue_ext->max_tx_cq_num;
1665 struct ena_admin_queue_feature_desc *max_queues =
1666 &get_feat_ctx->max_queues;
1667 io_tx_sq_num = max_queues->max_sq_num;
1668 io_tx_cq_num = max_queues->max_cq_num;
1669 io_rx_num = RTE_MIN(io_tx_sq_num, io_tx_cq_num);
1672 /* In case of LLQ use the llq number in the get feature cmd */
1673 if (ena_dev->tx_mem_queue_type == ENA_ADMIN_PLACEMENT_POLICY_DEV)
1674 io_tx_sq_num = get_feat_ctx->llq.max_llq_num;
1676 io_queue_num = RTE_MIN(ENA_MAX_NUM_IO_QUEUES, io_rx_num);
1677 io_queue_num = RTE_MIN(io_queue_num, io_tx_sq_num);
1678 io_queue_num = RTE_MIN(io_queue_num, io_tx_cq_num);
1680 if (unlikely(io_queue_num == 0)) {
1681 RTE_LOG(ERR, PMD, "Number of IO queues should not be 0\n");
1685 return io_queue_num;
1688 static int eth_ena_dev_init(struct rte_eth_dev *eth_dev)
1690 struct ena_calc_queue_size_ctx calc_queue_ctx = { 0 };
1691 struct rte_pci_device *pci_dev;
1692 struct rte_intr_handle *intr_handle;
1693 struct ena_adapter *adapter = eth_dev->data->dev_private;
1694 struct ena_com_dev *ena_dev = &adapter->ena_dev;
1695 struct ena_com_dev_get_features_ctx get_feat_ctx;
1696 struct ena_llq_configurations llq_config;
1697 const char *queue_type_str;
1700 static int adapters_found;
1703 eth_dev->dev_ops = &ena_dev_ops;
1704 eth_dev->rx_pkt_burst = ð_ena_recv_pkts;
1705 eth_dev->tx_pkt_burst = ð_ena_xmit_pkts;
1706 eth_dev->tx_pkt_prepare = ð_ena_prep_pkts;
1708 if (rte_eal_process_type() != RTE_PROC_PRIMARY)
1711 memset(adapter, 0, sizeof(struct ena_adapter));
1712 ena_dev = &adapter->ena_dev;
1714 adapter->rte_eth_dev_data = eth_dev->data;
1715 adapter->rte_dev = eth_dev;
1717 pci_dev = RTE_ETH_DEV_TO_PCI(eth_dev);
1718 adapter->pdev = pci_dev;
1720 PMD_INIT_LOG(INFO, "Initializing %x:%x:%x.%d",
1721 pci_dev->addr.domain,
1723 pci_dev->addr.devid,
1724 pci_dev->addr.function);
1726 intr_handle = &pci_dev->intr_handle;
1728 adapter->regs = pci_dev->mem_resource[ENA_REGS_BAR].addr;
1729 adapter->dev_mem_base = pci_dev->mem_resource[ENA_MEM_BAR].addr;
1731 if (!adapter->regs) {
1732 PMD_INIT_LOG(CRIT, "Failed to access registers BAR(%d)",
1737 ena_dev->reg_bar = adapter->regs;
1738 ena_dev->dmadev = adapter->pdev;
1740 adapter->id_number = adapters_found;
1742 snprintf(adapter->name, ENA_NAME_MAX_LEN, "ena_%d",
1743 adapter->id_number);
1745 /* device specific initialization routine */
1746 rc = ena_device_init(ena_dev, &get_feat_ctx, &wd_state);
1748 PMD_INIT_LOG(CRIT, "Failed to init ENA device");
1751 adapter->wd_state = wd_state;
1753 set_default_llq_configurations(&llq_config);
1754 rc = ena_set_queues_placement_policy(adapter, ena_dev,
1755 &get_feat_ctx.llq, &llq_config);
1757 PMD_INIT_LOG(CRIT, "Failed to set placement policy");
1761 if (ena_dev->tx_mem_queue_type == ENA_ADMIN_PLACEMENT_POLICY_HOST)
1762 queue_type_str = "Regular";
1764 queue_type_str = "Low latency";
1765 RTE_LOG(INFO, PMD, "Placement policy: %s\n", queue_type_str);
1767 calc_queue_ctx.ena_dev = ena_dev;
1768 calc_queue_ctx.get_feat_ctx = &get_feat_ctx;
1769 adapter->num_queues = ena_calc_io_queue_num(ena_dev,
1772 rc = ena_calc_queue_size(&calc_queue_ctx);
1773 if (unlikely((rc != 0) || (adapter->num_queues <= 0))) {
1775 goto err_device_destroy;
1778 adapter->tx_ring_size = calc_queue_ctx.tx_queue_size;
1779 adapter->rx_ring_size = calc_queue_ctx.rx_queue_size;
1781 adapter->max_tx_sgl_size = calc_queue_ctx.max_tx_sgl_size;
1782 adapter->max_rx_sgl_size = calc_queue_ctx.max_rx_sgl_size;
1784 /* prepare ring structures */
1785 ena_init_rings(adapter);
1787 ena_config_debug_area(adapter);
1789 /* Set max MTU for this device */
1790 adapter->max_mtu = get_feat_ctx.dev_attr.max_mtu;
1792 /* set device support for offloads */
1793 adapter->offloads.tso4_supported = (get_feat_ctx.offload.tx &
1794 ENA_ADMIN_FEATURE_OFFLOAD_DESC_TSO_IPV4_MASK) != 0;
1795 adapter->offloads.tx_csum_supported = (get_feat_ctx.offload.tx &
1796 ENA_ADMIN_FEATURE_OFFLOAD_DESC_TX_L4_IPV4_CSUM_PART_MASK) != 0;
1797 adapter->offloads.rx_csum_supported =
1798 (get_feat_ctx.offload.rx_supported &
1799 ENA_ADMIN_FEATURE_OFFLOAD_DESC_RX_L4_IPV4_CSUM_MASK) != 0;
1801 /* Copy MAC address and point DPDK to it */
1802 eth_dev->data->mac_addrs = (struct rte_ether_addr *)adapter->mac_addr;
1803 rte_ether_addr_copy((struct rte_ether_addr *)
1804 get_feat_ctx.dev_attr.mac_addr,
1805 (struct rte_ether_addr *)adapter->mac_addr);
1808 * Pass the information to the rte_eth_dev_close() that it should also
1809 * release the private port resources.
1811 eth_dev->data->dev_flags |= RTE_ETH_DEV_CLOSE_REMOVE;
1813 adapter->drv_stats = rte_zmalloc("adapter stats",
1814 sizeof(*adapter->drv_stats),
1815 RTE_CACHE_LINE_SIZE);
1816 if (!adapter->drv_stats) {
1817 RTE_LOG(ERR, PMD, "failed to alloc mem for adapter stats\n");
1819 goto err_delete_debug_area;
1822 rte_intr_callback_register(intr_handle,
1823 ena_interrupt_handler_rte,
1825 rte_intr_enable(intr_handle);
1826 ena_com_set_admin_polling_mode(ena_dev, false);
1827 ena_com_admin_aenq_enable(ena_dev);
1829 if (adapters_found == 0)
1830 rte_timer_subsystem_init();
1831 rte_timer_init(&adapter->timer_wd);
1834 adapter->state = ENA_ADAPTER_STATE_INIT;
1838 err_delete_debug_area:
1839 ena_com_delete_debug_area(ena_dev);
1842 ena_com_delete_host_info(ena_dev);
1843 ena_com_admin_destroy(ena_dev);
1849 static void ena_destroy_device(struct rte_eth_dev *eth_dev)
1851 struct ena_adapter *adapter = eth_dev->data->dev_private;
1852 struct ena_com_dev *ena_dev = &adapter->ena_dev;
1854 if (adapter->state == ENA_ADAPTER_STATE_FREE)
1857 ena_com_set_admin_running_state(ena_dev, false);
1859 if (adapter->state != ENA_ADAPTER_STATE_CLOSED)
1862 ena_com_delete_debug_area(ena_dev);
1863 ena_com_delete_host_info(ena_dev);
1865 ena_com_abort_admin_commands(ena_dev);
1866 ena_com_wait_for_abort_completion(ena_dev);
1867 ena_com_admin_destroy(ena_dev);
1868 ena_com_mmio_reg_read_request_destroy(ena_dev);
1870 adapter->state = ENA_ADAPTER_STATE_FREE;
1873 static int eth_ena_dev_uninit(struct rte_eth_dev *eth_dev)
1875 if (rte_eal_process_type() != RTE_PROC_PRIMARY)
1878 ena_destroy_device(eth_dev);
1880 eth_dev->dev_ops = NULL;
1881 eth_dev->rx_pkt_burst = NULL;
1882 eth_dev->tx_pkt_burst = NULL;
1883 eth_dev->tx_pkt_prepare = NULL;
1888 static int ena_dev_configure(struct rte_eth_dev *dev)
1890 struct ena_adapter *adapter = dev->data->dev_private;
1892 adapter->state = ENA_ADAPTER_STATE_CONFIG;
1894 adapter->tx_selected_offloads = dev->data->dev_conf.txmode.offloads;
1895 adapter->rx_selected_offloads = dev->data->dev_conf.rxmode.offloads;
1899 static void ena_init_rings(struct ena_adapter *adapter)
1903 for (i = 0; i < adapter->num_queues; i++) {
1904 struct ena_ring *ring = &adapter->tx_ring[i];
1906 ring->configured = 0;
1907 ring->type = ENA_RING_TYPE_TX;
1908 ring->adapter = adapter;
1910 ring->tx_mem_queue_type = adapter->ena_dev.tx_mem_queue_type;
1911 ring->tx_max_header_size = adapter->ena_dev.tx_max_header_size;
1912 ring->sgl_size = adapter->max_tx_sgl_size;
1915 for (i = 0; i < adapter->num_queues; i++) {
1916 struct ena_ring *ring = &adapter->rx_ring[i];
1918 ring->configured = 0;
1919 ring->type = ENA_RING_TYPE_RX;
1920 ring->adapter = adapter;
1922 ring->sgl_size = adapter->max_rx_sgl_size;
1926 static void ena_infos_get(struct rte_eth_dev *dev,
1927 struct rte_eth_dev_info *dev_info)
1929 struct ena_adapter *adapter;
1930 struct ena_com_dev *ena_dev;
1931 uint64_t rx_feat = 0, tx_feat = 0;
1933 ena_assert_msg(dev->data != NULL, "Uninitialized device\n");
1934 ena_assert_msg(dev->data->dev_private != NULL, "Uninitialized device\n");
1935 adapter = dev->data->dev_private;
1937 ena_dev = &adapter->ena_dev;
1938 ena_assert_msg(ena_dev != NULL, "Uninitialized device\n");
1940 dev_info->speed_capa =
1942 ETH_LINK_SPEED_2_5G |
1944 ETH_LINK_SPEED_10G |
1945 ETH_LINK_SPEED_25G |
1946 ETH_LINK_SPEED_40G |
1947 ETH_LINK_SPEED_50G |
1948 ETH_LINK_SPEED_100G;
1950 /* Set Tx & Rx features available for device */
1951 if (adapter->offloads.tso4_supported)
1952 tx_feat |= DEV_TX_OFFLOAD_TCP_TSO;
1954 if (adapter->offloads.tx_csum_supported)
1955 tx_feat |= DEV_TX_OFFLOAD_IPV4_CKSUM |
1956 DEV_TX_OFFLOAD_UDP_CKSUM |
1957 DEV_TX_OFFLOAD_TCP_CKSUM;
1959 if (adapter->offloads.rx_csum_supported)
1960 rx_feat |= DEV_RX_OFFLOAD_IPV4_CKSUM |
1961 DEV_RX_OFFLOAD_UDP_CKSUM |
1962 DEV_RX_OFFLOAD_TCP_CKSUM;
1964 rx_feat |= DEV_RX_OFFLOAD_JUMBO_FRAME;
1966 /* Inform framework about available features */
1967 dev_info->rx_offload_capa = rx_feat;
1968 dev_info->rx_queue_offload_capa = rx_feat;
1969 dev_info->tx_offload_capa = tx_feat;
1970 dev_info->tx_queue_offload_capa = tx_feat;
1972 dev_info->flow_type_rss_offloads = ETH_RSS_IP | ETH_RSS_TCP |
1975 dev_info->min_rx_bufsize = ENA_MIN_FRAME_LEN;
1976 dev_info->max_rx_pktlen = adapter->max_mtu;
1977 dev_info->max_mac_addrs = 1;
1979 dev_info->max_rx_queues = adapter->num_queues;
1980 dev_info->max_tx_queues = adapter->num_queues;
1981 dev_info->reta_size = ENA_RX_RSS_TABLE_SIZE;
1983 adapter->tx_supported_offloads = tx_feat;
1984 adapter->rx_supported_offloads = rx_feat;
1986 dev_info->rx_desc_lim.nb_max = adapter->rx_ring_size;
1987 dev_info->rx_desc_lim.nb_min = ENA_MIN_RING_DESC;
1988 dev_info->rx_desc_lim.nb_seg_max = RTE_MIN(ENA_PKT_MAX_BUFS,
1989 adapter->max_rx_sgl_size);
1990 dev_info->rx_desc_lim.nb_mtu_seg_max = RTE_MIN(ENA_PKT_MAX_BUFS,
1991 adapter->max_rx_sgl_size);
1993 dev_info->tx_desc_lim.nb_max = adapter->tx_ring_size;
1994 dev_info->tx_desc_lim.nb_min = ENA_MIN_RING_DESC;
1995 dev_info->tx_desc_lim.nb_seg_max = RTE_MIN(ENA_PKT_MAX_BUFS,
1996 adapter->max_tx_sgl_size);
1997 dev_info->tx_desc_lim.nb_mtu_seg_max = RTE_MIN(ENA_PKT_MAX_BUFS,
1998 adapter->max_tx_sgl_size);
2001 static uint16_t eth_ena_recv_pkts(void *rx_queue, struct rte_mbuf **rx_pkts,
2004 struct ena_ring *rx_ring = (struct ena_ring *)(rx_queue);
2005 unsigned int ring_size = rx_ring->ring_size;
2006 unsigned int ring_mask = ring_size - 1;
2007 uint16_t next_to_clean = rx_ring->next_to_clean;
2008 uint16_t desc_in_use = 0;
2010 unsigned int recv_idx = 0;
2011 struct rte_mbuf *mbuf = NULL;
2012 struct rte_mbuf *mbuf_head = NULL;
2013 struct rte_mbuf *mbuf_prev = NULL;
2014 struct rte_mbuf **rx_buff_info = rx_ring->rx_buffer_info;
2015 unsigned int completed;
2017 struct ena_com_rx_ctx ena_rx_ctx;
2020 /* Check adapter state */
2021 if (unlikely(rx_ring->adapter->state != ENA_ADAPTER_STATE_RUNNING)) {
2023 "Trying to receive pkts while device is NOT running\n");
2027 desc_in_use = rx_ring->next_to_use - next_to_clean;
2028 if (unlikely(nb_pkts > desc_in_use))
2029 nb_pkts = desc_in_use;
2031 for (completed = 0; completed < nb_pkts; completed++) {
2034 ena_rx_ctx.max_bufs = rx_ring->sgl_size;
2035 ena_rx_ctx.ena_bufs = rx_ring->ena_bufs;
2036 ena_rx_ctx.descs = 0;
2037 /* receive packet context */
2038 rc = ena_com_rx_pkt(rx_ring->ena_com_io_cq,
2039 rx_ring->ena_com_io_sq,
2042 RTE_LOG(ERR, PMD, "ena_com_rx_pkt error %d\n", rc);
2043 rx_ring->adapter->reset_reason =
2044 ENA_REGS_RESET_TOO_MANY_RX_DESCS;
2045 rx_ring->adapter->trigger_reset = true;
2046 ++rx_ring->rx_stats.bad_desc_num;
2050 if (unlikely(ena_rx_ctx.descs == 0))
2053 while (segments < ena_rx_ctx.descs) {
2054 req_id = ena_rx_ctx.ena_bufs[segments].req_id;
2055 rc = validate_rx_req_id(rx_ring, req_id);
2058 rte_mbuf_raw_free(mbuf_head);
2062 mbuf = rx_buff_info[req_id];
2063 rx_buff_info[req_id] = NULL;
2064 mbuf->data_len = ena_rx_ctx.ena_bufs[segments].len;
2065 mbuf->data_off = RTE_PKTMBUF_HEADROOM;
2068 if (unlikely(segments == 0)) {
2069 mbuf->nb_segs = ena_rx_ctx.descs;
2070 mbuf->port = rx_ring->port_id;
2074 /* for multi-segment pkts create mbuf chain */
2075 mbuf_prev->next = mbuf;
2077 mbuf_head->pkt_len += mbuf->data_len;
2080 rx_ring->empty_rx_reqs[next_to_clean & ring_mask] =
2088 /* fill mbuf attributes if any */
2089 ena_rx_mbuf_prepare(mbuf_head, &ena_rx_ctx);
2091 if (unlikely(mbuf_head->ol_flags &
2092 (PKT_RX_IP_CKSUM_BAD | PKT_RX_L4_CKSUM_BAD))) {
2093 rte_atomic64_inc(&rx_ring->adapter->drv_stats->ierrors);
2094 ++rx_ring->rx_stats.bad_csum;
2097 mbuf_head->hash.rss = ena_rx_ctx.hash;
2099 /* pass to DPDK application head mbuf */
2100 rx_pkts[recv_idx] = mbuf_head;
2102 rx_ring->rx_stats.bytes += mbuf_head->pkt_len;
2105 rx_ring->rx_stats.cnt += recv_idx;
2106 rx_ring->next_to_clean = next_to_clean;
2108 desc_in_use = desc_in_use - completed + 1;
2109 /* Burst refill to save doorbells, memory barriers, const interval */
2110 if (ring_size - desc_in_use > ENA_RING_DESCS_RATIO(ring_size)) {
2111 ena_com_update_dev_comp_head(rx_ring->ena_com_io_cq);
2112 ena_populate_rx_queue(rx_ring, ring_size - desc_in_use);
2119 eth_ena_prep_pkts(void *tx_queue, struct rte_mbuf **tx_pkts,
2125 struct ena_ring *tx_ring = (struct ena_ring *)(tx_queue);
2126 struct rte_ipv4_hdr *ip_hdr;
2128 uint16_t frag_field;
2130 for (i = 0; i != nb_pkts; i++) {
2132 ol_flags = m->ol_flags;
2134 if (!(ol_flags & PKT_TX_IPV4))
2137 /* If there was not L2 header length specified, assume it is
2138 * length of the ethernet header.
2140 if (unlikely(m->l2_len == 0))
2141 m->l2_len = sizeof(struct rte_ether_hdr);
2143 ip_hdr = rte_pktmbuf_mtod_offset(m, struct rte_ipv4_hdr *,
2145 frag_field = rte_be_to_cpu_16(ip_hdr->fragment_offset);
2147 if ((frag_field & RTE_IPV4_HDR_DF_FLAG) != 0) {
2148 m->packet_type |= RTE_PTYPE_L4_NONFRAG;
2150 /* If IPv4 header has DF flag enabled and TSO support is
2151 * disabled, partial chcecksum should not be calculated.
2153 if (!tx_ring->adapter->offloads.tso4_supported)
2157 if ((ol_flags & ENA_TX_OFFLOAD_NOTSUP_MASK) != 0 ||
2158 (ol_flags & PKT_TX_L4_MASK) ==
2159 PKT_TX_SCTP_CKSUM) {
2160 rte_errno = ENOTSUP;
2164 #ifdef RTE_LIBRTE_ETHDEV_DEBUG
2165 ret = rte_validate_tx_offload(m);
2172 /* In case we are supposed to TSO and have DF not set (DF=0)
2173 * hardware must be provided with partial checksum, otherwise
2174 * it will take care of necessary calculations.
2177 ret = rte_net_intel_cksum_flags_prepare(m,
2178 ol_flags & ~PKT_TX_TCP_SEG);
2188 static void ena_update_hints(struct ena_adapter *adapter,
2189 struct ena_admin_ena_hw_hints *hints)
2191 if (hints->admin_completion_tx_timeout)
2192 adapter->ena_dev.admin_queue.completion_timeout =
2193 hints->admin_completion_tx_timeout * 1000;
2195 if (hints->mmio_read_timeout)
2196 /* convert to usec */
2197 adapter->ena_dev.mmio_read.reg_read_to =
2198 hints->mmio_read_timeout * 1000;
2200 if (hints->driver_watchdog_timeout) {
2201 if (hints->driver_watchdog_timeout == ENA_HW_HINTS_NO_TIMEOUT)
2202 adapter->keep_alive_timeout = ENA_HW_HINTS_NO_TIMEOUT;
2204 // Convert msecs to ticks
2205 adapter->keep_alive_timeout =
2206 (hints->driver_watchdog_timeout *
2207 rte_get_timer_hz()) / 1000;
2211 static int ena_check_and_linearize_mbuf(struct ena_ring *tx_ring,
2212 struct rte_mbuf *mbuf)
2214 struct ena_com_dev *ena_dev;
2215 int num_segments, header_len, rc;
2217 ena_dev = &tx_ring->adapter->ena_dev;
2218 num_segments = mbuf->nb_segs;
2219 header_len = mbuf->data_len;
2221 if (likely(num_segments < tx_ring->sgl_size))
2224 if (ena_dev->tx_mem_queue_type == ENA_ADMIN_PLACEMENT_POLICY_DEV &&
2225 (num_segments == tx_ring->sgl_size) &&
2226 (header_len < tx_ring->tx_max_header_size))
2229 ++tx_ring->tx_stats.linearize;
2230 rc = rte_pktmbuf_linearize(mbuf);
2232 RTE_LOG(WARNING, PMD, "Mbuf linearize failed\n");
2233 rte_atomic64_inc(&tx_ring->adapter->drv_stats->ierrors);
2234 ++tx_ring->tx_stats.linearize_failed;
2241 static uint16_t eth_ena_xmit_pkts(void *tx_queue, struct rte_mbuf **tx_pkts,
2244 struct ena_ring *tx_ring = (struct ena_ring *)(tx_queue);
2245 uint16_t next_to_use = tx_ring->next_to_use;
2246 uint16_t next_to_clean = tx_ring->next_to_clean;
2247 struct rte_mbuf *mbuf;
2249 unsigned int ring_size = tx_ring->ring_size;
2250 unsigned int ring_mask = ring_size - 1;
2251 struct ena_com_tx_ctx ena_tx_ctx;
2252 struct ena_tx_buffer *tx_info;
2253 struct ena_com_buf *ebuf;
2254 uint16_t rc, req_id, total_tx_descs = 0;
2255 uint16_t sent_idx = 0, empty_tx_reqs;
2256 uint16_t push_len = 0;
2259 uint32_t total_length;
2261 /* Check adapter state */
2262 if (unlikely(tx_ring->adapter->state != ENA_ADAPTER_STATE_RUNNING)) {
2264 "Trying to xmit pkts while device is NOT running\n");
2268 empty_tx_reqs = ring_size - (next_to_use - next_to_clean);
2269 if (nb_pkts > empty_tx_reqs)
2270 nb_pkts = empty_tx_reqs;
2272 for (sent_idx = 0; sent_idx < nb_pkts; sent_idx++) {
2273 mbuf = tx_pkts[sent_idx];
2276 rc = ena_check_and_linearize_mbuf(tx_ring, mbuf);
2280 req_id = tx_ring->empty_tx_reqs[next_to_use & ring_mask];
2281 tx_info = &tx_ring->tx_buffer_info[req_id];
2282 tx_info->mbuf = mbuf;
2283 tx_info->num_of_bufs = 0;
2284 ebuf = tx_info->bufs;
2286 /* Prepare TX context */
2287 memset(&ena_tx_ctx, 0x0, sizeof(struct ena_com_tx_ctx));
2288 memset(&ena_tx_ctx.ena_meta, 0x0,
2289 sizeof(struct ena_com_tx_meta));
2290 ena_tx_ctx.ena_bufs = ebuf;
2291 ena_tx_ctx.req_id = req_id;
2294 seg_len = mbuf->data_len;
2296 if (tx_ring->tx_mem_queue_type ==
2297 ENA_ADMIN_PLACEMENT_POLICY_DEV) {
2298 push_len = RTE_MIN(mbuf->pkt_len,
2299 tx_ring->tx_max_header_size);
2300 ena_tx_ctx.header_len = push_len;
2302 if (likely(push_len <= seg_len)) {
2303 /* If the push header is in the single segment,
2304 * then just point it to the 1st mbuf data.
2306 ena_tx_ctx.push_header =
2307 rte_pktmbuf_mtod(mbuf, uint8_t *);
2309 /* If the push header lays in the several
2310 * segments, copy it to the intermediate buffer.
2312 rte_pktmbuf_read(mbuf, 0, push_len,
2313 tx_ring->push_buf_intermediate_buf);
2314 ena_tx_ctx.push_header =
2315 tx_ring->push_buf_intermediate_buf;
2316 delta = push_len - seg_len;
2318 } /* there's no else as we take advantage of memset zeroing */
2320 /* Set TX offloads flags, if applicable */
2321 ena_tx_mbuf_prepare(mbuf, &ena_tx_ctx, tx_ring->offloads);
2323 rte_prefetch0(tx_pkts[(sent_idx + 4) & ring_mask]);
2325 /* Process first segment taking into
2326 * consideration pushed header
2328 if (seg_len > push_len) {
2329 ebuf->paddr = mbuf->buf_iova +
2332 ebuf->len = seg_len - push_len;
2334 tx_info->num_of_bufs++;
2336 total_length += mbuf->data_len;
2338 while ((mbuf = mbuf->next) != NULL) {
2339 seg_len = mbuf->data_len;
2341 /* Skip mbufs if whole data is pushed as a header */
2342 if (unlikely(delta > seg_len)) {
2347 ebuf->paddr = mbuf->buf_iova + mbuf->data_off + delta;
2348 ebuf->len = seg_len - delta;
2349 total_length += ebuf->len;
2351 tx_info->num_of_bufs++;
2356 ena_tx_ctx.num_bufs = tx_info->num_of_bufs;
2358 if (ena_com_is_doorbell_needed(tx_ring->ena_com_io_sq,
2360 RTE_LOG(DEBUG, PMD, "llq tx max burst size of queue %d"
2361 " achieved, writing doorbell to send burst\n",
2364 ena_com_write_sq_doorbell(tx_ring->ena_com_io_sq);
2367 /* prepare the packet's descriptors to dma engine */
2368 rc = ena_com_prepare_tx(tx_ring->ena_com_io_sq,
2369 &ena_tx_ctx, &nb_hw_desc);
2371 ++tx_ring->tx_stats.prepare_ctx_err;
2374 tx_info->tx_descs = nb_hw_desc;
2377 tx_ring->tx_stats.cnt++;
2378 tx_ring->tx_stats.bytes += total_length;
2380 tx_ring->tx_stats.available_desc =
2381 ena_com_free_desc(tx_ring->ena_com_io_sq);
2383 /* If there are ready packets to be xmitted... */
2385 /* ...let HW do its best :-) */
2387 ena_com_write_sq_doorbell(tx_ring->ena_com_io_sq);
2388 tx_ring->tx_stats.doorbells++;
2389 tx_ring->next_to_use = next_to_use;
2392 /* Clear complete packets */
2393 while (ena_com_tx_comp_req_id_get(tx_ring->ena_com_io_cq, &req_id) >= 0) {
2394 rc = validate_tx_req_id(tx_ring, req_id);
2398 /* Get Tx info & store how many descs were processed */
2399 tx_info = &tx_ring->tx_buffer_info[req_id];
2400 total_tx_descs += tx_info->tx_descs;
2402 /* Free whole mbuf chain */
2403 mbuf = tx_info->mbuf;
2404 rte_pktmbuf_free(mbuf);
2405 tx_info->mbuf = NULL;
2407 /* Put back descriptor to the ring for reuse */
2408 tx_ring->empty_tx_reqs[next_to_clean & ring_mask] = req_id;
2411 /* If too many descs to clean, leave it for another run */
2412 if (unlikely(total_tx_descs > ENA_RING_DESCS_RATIO(ring_size)))
2415 tx_ring->tx_stats.available_desc =
2416 ena_com_free_desc(tx_ring->ena_com_io_sq);
2418 if (total_tx_descs > 0) {
2419 /* acknowledge completion of sent packets */
2420 tx_ring->next_to_clean = next_to_clean;
2421 ena_com_comp_ack(tx_ring->ena_com_io_sq, total_tx_descs);
2422 ena_com_update_dev_comp_head(tx_ring->ena_com_io_cq);
2425 tx_ring->tx_stats.tx_poll++;
2431 * DPDK callback to retrieve names of extended device statistics
2434 * Pointer to Ethernet device structure.
2435 * @param[out] xstats_names
2436 * Buffer to insert names into.
2441 * Number of xstats names.
2443 static int ena_xstats_get_names(struct rte_eth_dev *dev,
2444 struct rte_eth_xstat_name *xstats_names,
2447 unsigned int xstats_count = ena_xstats_calc_num(dev);
2448 unsigned int stat, i, count = 0;
2450 if (n < xstats_count || !xstats_names)
2451 return xstats_count;
2453 for (stat = 0; stat < ENA_STATS_ARRAY_GLOBAL; stat++, count++)
2454 strcpy(xstats_names[count].name,
2455 ena_stats_global_strings[stat].name);
2457 for (stat = 0; stat < ENA_STATS_ARRAY_RX; stat++)
2458 for (i = 0; i < dev->data->nb_rx_queues; i++, count++)
2459 snprintf(xstats_names[count].name,
2460 sizeof(xstats_names[count].name),
2462 ena_stats_rx_strings[stat].name);
2464 for (stat = 0; stat < ENA_STATS_ARRAY_TX; stat++)
2465 for (i = 0; i < dev->data->nb_tx_queues; i++, count++)
2466 snprintf(xstats_names[count].name,
2467 sizeof(xstats_names[count].name),
2469 ena_stats_tx_strings[stat].name);
2471 return xstats_count;
2475 * DPDK callback to get extended device statistics.
2478 * Pointer to Ethernet device structure.
2480 * Stats table output buffer.
2482 * The size of the stats table.
2485 * Number of xstats on success, negative on failure.
2487 static int ena_xstats_get(struct rte_eth_dev *dev,
2488 struct rte_eth_xstat *xstats,
2491 struct ena_adapter *adapter = dev->data->dev_private;
2492 unsigned int xstats_count = ena_xstats_calc_num(dev);
2493 unsigned int stat, i, count = 0;
2497 if (n < xstats_count)
2498 return xstats_count;
2503 for (stat = 0; stat < ENA_STATS_ARRAY_GLOBAL; stat++, count++) {
2504 stat_offset = ena_stats_rx_strings[stat].stat_offset;
2505 stats_begin = &adapter->dev_stats;
2507 xstats[count].id = count;
2508 xstats[count].value = *((uint64_t *)
2509 ((char *)stats_begin + stat_offset));
2512 for (stat = 0; stat < ENA_STATS_ARRAY_RX; stat++) {
2513 for (i = 0; i < dev->data->nb_rx_queues; i++, count++) {
2514 stat_offset = ena_stats_rx_strings[stat].stat_offset;
2515 stats_begin = &adapter->rx_ring[i].rx_stats;
2517 xstats[count].id = count;
2518 xstats[count].value = *((uint64_t *)
2519 ((char *)stats_begin + stat_offset));
2523 for (stat = 0; stat < ENA_STATS_ARRAY_TX; stat++) {
2524 for (i = 0; i < dev->data->nb_tx_queues; i++, count++) {
2525 stat_offset = ena_stats_tx_strings[stat].stat_offset;
2526 stats_begin = &adapter->tx_ring[i].rx_stats;
2528 xstats[count].id = count;
2529 xstats[count].value = *((uint64_t *)
2530 ((char *)stats_begin + stat_offset));
2537 static int ena_xstats_get_by_id(struct rte_eth_dev *dev,
2538 const uint64_t *ids,
2542 struct ena_adapter *adapter = dev->data->dev_private;
2544 uint64_t rx_entries, tx_entries;
2548 for (i = 0; i < n; ++i) {
2550 /* Check if id belongs to global statistics */
2551 if (id < ENA_STATS_ARRAY_GLOBAL) {
2552 values[i] = *((uint64_t *)&adapter->dev_stats + id);
2557 /* Check if id belongs to rx queue statistics */
2558 id -= ENA_STATS_ARRAY_GLOBAL;
2559 rx_entries = ENA_STATS_ARRAY_RX * dev->data->nb_rx_queues;
2560 if (id < rx_entries) {
2561 qid = id % dev->data->nb_rx_queues;
2562 id /= dev->data->nb_rx_queues;
2563 values[i] = *((uint64_t *)
2564 &adapter->rx_ring[qid].rx_stats + id);
2568 /* Check if id belongs to rx queue statistics */
2570 tx_entries = ENA_STATS_ARRAY_TX * dev->data->nb_tx_queues;
2571 if (id < tx_entries) {
2572 qid = id % dev->data->nb_tx_queues;
2573 id /= dev->data->nb_tx_queues;
2574 values[i] = *((uint64_t *)
2575 &adapter->tx_ring[qid].tx_stats + id);
2584 /*********************************************************************
2586 *********************************************************************/
2587 static int eth_ena_pci_probe(struct rte_pci_driver *pci_drv __rte_unused,
2588 struct rte_pci_device *pci_dev)
2590 return rte_eth_dev_pci_generic_probe(pci_dev,
2591 sizeof(struct ena_adapter), eth_ena_dev_init);
2594 static int eth_ena_pci_remove(struct rte_pci_device *pci_dev)
2596 return rte_eth_dev_pci_generic_remove(pci_dev, eth_ena_dev_uninit);
2599 static struct rte_pci_driver rte_ena_pmd = {
2600 .id_table = pci_id_ena_map,
2601 .drv_flags = RTE_PCI_DRV_NEED_MAPPING | RTE_PCI_DRV_INTR_LSC |
2602 RTE_PCI_DRV_WC_ACTIVATE,
2603 .probe = eth_ena_pci_probe,
2604 .remove = eth_ena_pci_remove,
2607 RTE_PMD_REGISTER_PCI(net_ena, rte_ena_pmd);
2608 RTE_PMD_REGISTER_PCI_TABLE(net_ena, pci_id_ena_map);
2609 RTE_PMD_REGISTER_KMOD_DEP(net_ena, "* igb_uio | uio_pci_generic | vfio-pci");
2611 RTE_INIT(ena_init_log)
2613 ena_logtype_init = rte_log_register("pmd.net.ena.init");
2614 if (ena_logtype_init >= 0)
2615 rte_log_set_level(ena_logtype_init, RTE_LOG_NOTICE);
2616 ena_logtype_driver = rte_log_register("pmd.net.ena.driver");
2617 if (ena_logtype_driver >= 0)
2618 rte_log_set_level(ena_logtype_driver, RTE_LOG_NOTICE);
2621 /******************************************************************************
2622 ******************************** AENQ Handlers *******************************
2623 *****************************************************************************/
2624 static void ena_update_on_link_change(void *adapter_data,
2625 struct ena_admin_aenq_entry *aenq_e)
2627 struct rte_eth_dev *eth_dev;
2628 struct ena_adapter *adapter;
2629 struct ena_admin_aenq_link_change_desc *aenq_link_desc;
2632 adapter = adapter_data;
2633 aenq_link_desc = (struct ena_admin_aenq_link_change_desc *)aenq_e;
2634 eth_dev = adapter->rte_dev;
2636 status = get_ena_admin_aenq_link_change_desc_link_status(aenq_link_desc);
2637 adapter->link_status = status;
2639 ena_link_update(eth_dev, 0);
2640 _rte_eth_dev_callback_process(eth_dev, RTE_ETH_EVENT_INTR_LSC, NULL);
2643 static void ena_notification(void *data,
2644 struct ena_admin_aenq_entry *aenq_e)
2646 struct ena_adapter *adapter = data;
2647 struct ena_admin_ena_hw_hints *hints;
2649 if (aenq_e->aenq_common_desc.group != ENA_ADMIN_NOTIFICATION)
2650 RTE_LOG(WARNING, PMD, "Invalid group(%x) expected %x\n",
2651 aenq_e->aenq_common_desc.group,
2652 ENA_ADMIN_NOTIFICATION);
2654 switch (aenq_e->aenq_common_desc.syndrom) {
2655 case ENA_ADMIN_UPDATE_HINTS:
2656 hints = (struct ena_admin_ena_hw_hints *)
2657 (&aenq_e->inline_data_w4);
2658 ena_update_hints(adapter, hints);
2661 RTE_LOG(ERR, PMD, "Invalid aenq notification link state %d\n",
2662 aenq_e->aenq_common_desc.syndrom);
2666 static void ena_keep_alive(void *adapter_data,
2667 __rte_unused struct ena_admin_aenq_entry *aenq_e)
2669 struct ena_adapter *adapter = adapter_data;
2670 struct ena_admin_aenq_keep_alive_desc *desc;
2673 adapter->timestamp_wd = rte_get_timer_cycles();
2675 desc = (struct ena_admin_aenq_keep_alive_desc *)aenq_e;
2676 rx_drops = ((uint64_t)desc->rx_drops_high << 32) | desc->rx_drops_low;
2677 rte_atomic64_set(&adapter->drv_stats->rx_drops, rx_drops);
2681 * This handler will called for unknown event group or unimplemented handlers
2683 static void unimplemented_aenq_handler(__rte_unused void *data,
2684 __rte_unused struct ena_admin_aenq_entry *aenq_e)
2686 RTE_LOG(ERR, PMD, "Unknown event was received or event with "
2687 "unimplemented handler\n");
2690 static struct ena_aenq_handlers aenq_handlers = {
2692 [ENA_ADMIN_LINK_CHANGE] = ena_update_on_link_change,
2693 [ENA_ADMIN_NOTIFICATION] = ena_notification,
2694 [ENA_ADMIN_KEEP_ALIVE] = ena_keep_alive
2696 .unimplemented_handler = unimplemented_aenq_handler