1 /* SPDX-License-Identifier: BSD-3-Clause
2 * Copyright (c) 2015-2020 Amazon.com, Inc. or its affiliates.
6 #include <rte_string_fns.h>
8 #include <ethdev_driver.h>
9 #include <ethdev_pci.h>
11 #include <rte_atomic.h>
13 #include <rte_errno.h>
14 #include <rte_version.h>
16 #include <rte_kvargs.h>
18 #include "ena_ethdev.h"
20 #include "ena_platform.h"
22 #include "ena_eth_com.h"
24 #include <ena_common_defs.h>
25 #include <ena_regs_defs.h>
26 #include <ena_admin_defs.h>
27 #include <ena_eth_io_defs.h>
29 #define DRV_MODULE_VER_MAJOR 2
30 #define DRV_MODULE_VER_MINOR 2
31 #define DRV_MODULE_VER_SUBMINOR 1
33 #define ENA_IO_TXQ_IDX(q) (2 * (q))
34 #define ENA_IO_RXQ_IDX(q) (2 * (q) + 1)
35 /*reverse version of ENA_IO_RXQ_IDX*/
36 #define ENA_IO_RXQ_IDX_REV(q) ((q - 1) / 2)
38 #define __MERGE_64B_H_L(h, l) (((uint64_t)h << 32) | l)
39 #define TEST_BIT(val, bit_shift) (val & (1UL << bit_shift))
41 #define GET_L4_HDR_LEN(mbuf) \
42 ((rte_pktmbuf_mtod_offset(mbuf, struct rte_tcp_hdr *, \
43 mbuf->l3_len + mbuf->l2_len)->data_off) >> 4)
45 #define ENA_RX_RSS_TABLE_LOG_SIZE 7
46 #define ENA_RX_RSS_TABLE_SIZE (1 << ENA_RX_RSS_TABLE_LOG_SIZE)
47 #define ENA_HASH_KEY_SIZE 40
48 #define ETH_GSTRING_LEN 32
50 #define ARRAY_SIZE(x) RTE_DIM(x)
52 #define ENA_MIN_RING_DESC 128
54 enum ethtool_stringset {
60 char name[ETH_GSTRING_LEN];
64 #define ENA_STAT_ENTRY(stat, stat_type) { \
66 .stat_offset = offsetof(struct ena_stats_##stat_type, stat) \
69 #define ENA_STAT_RX_ENTRY(stat) \
70 ENA_STAT_ENTRY(stat, rx)
72 #define ENA_STAT_TX_ENTRY(stat) \
73 ENA_STAT_ENTRY(stat, tx)
75 #define ENA_STAT_ENI_ENTRY(stat) \
76 ENA_STAT_ENTRY(stat, eni)
78 #define ENA_STAT_GLOBAL_ENTRY(stat) \
79 ENA_STAT_ENTRY(stat, dev)
81 /* Device arguments */
82 #define ENA_DEVARG_LARGE_LLQ_HDR "large_llq_hdr"
85 * Each rte_memzone should have unique name.
86 * To satisfy it, count number of allocation and add it to name.
88 rte_atomic64_t ena_alloc_cnt;
90 static const struct ena_stats ena_stats_global_strings[] = {
91 ENA_STAT_GLOBAL_ENTRY(wd_expired),
92 ENA_STAT_GLOBAL_ENTRY(dev_start),
93 ENA_STAT_GLOBAL_ENTRY(dev_stop),
94 ENA_STAT_GLOBAL_ENTRY(tx_drops),
97 static const struct ena_stats ena_stats_eni_strings[] = {
98 ENA_STAT_ENI_ENTRY(bw_in_allowance_exceeded),
99 ENA_STAT_ENI_ENTRY(bw_out_allowance_exceeded),
100 ENA_STAT_ENI_ENTRY(pps_allowance_exceeded),
101 ENA_STAT_ENI_ENTRY(conntrack_allowance_exceeded),
102 ENA_STAT_ENI_ENTRY(linklocal_allowance_exceeded),
105 static const struct ena_stats ena_stats_tx_strings[] = {
106 ENA_STAT_TX_ENTRY(cnt),
107 ENA_STAT_TX_ENTRY(bytes),
108 ENA_STAT_TX_ENTRY(prepare_ctx_err),
109 ENA_STAT_TX_ENTRY(linearize),
110 ENA_STAT_TX_ENTRY(linearize_failed),
111 ENA_STAT_TX_ENTRY(tx_poll),
112 ENA_STAT_TX_ENTRY(doorbells),
113 ENA_STAT_TX_ENTRY(bad_req_id),
114 ENA_STAT_TX_ENTRY(available_desc),
117 static const struct ena_stats ena_stats_rx_strings[] = {
118 ENA_STAT_RX_ENTRY(cnt),
119 ENA_STAT_RX_ENTRY(bytes),
120 ENA_STAT_RX_ENTRY(refill_partial),
121 ENA_STAT_RX_ENTRY(bad_csum),
122 ENA_STAT_RX_ENTRY(mbuf_alloc_fail),
123 ENA_STAT_RX_ENTRY(bad_desc_num),
124 ENA_STAT_RX_ENTRY(bad_req_id),
127 #define ENA_STATS_ARRAY_GLOBAL ARRAY_SIZE(ena_stats_global_strings)
128 #define ENA_STATS_ARRAY_ENI ARRAY_SIZE(ena_stats_eni_strings)
129 #define ENA_STATS_ARRAY_TX ARRAY_SIZE(ena_stats_tx_strings)
130 #define ENA_STATS_ARRAY_RX ARRAY_SIZE(ena_stats_rx_strings)
132 #define QUEUE_OFFLOADS (DEV_TX_OFFLOAD_TCP_CKSUM |\
133 DEV_TX_OFFLOAD_UDP_CKSUM |\
134 DEV_TX_OFFLOAD_IPV4_CKSUM |\
135 DEV_TX_OFFLOAD_TCP_TSO)
136 #define MBUF_OFFLOADS (PKT_TX_L4_MASK |\
140 /** Vendor ID used by Amazon devices */
141 #define PCI_VENDOR_ID_AMAZON 0x1D0F
142 /** Amazon devices */
143 #define PCI_DEVICE_ID_ENA_VF 0xEC20
144 #define PCI_DEVICE_ID_ENA_VF_RSERV0 0xEC21
146 #define ENA_TX_OFFLOAD_MASK (\
153 #define ENA_TX_OFFLOAD_NOTSUP_MASK \
154 (PKT_TX_OFFLOAD_MASK ^ ENA_TX_OFFLOAD_MASK)
156 static const struct rte_pci_id pci_id_ena_map[] = {
157 { RTE_PCI_DEVICE(PCI_VENDOR_ID_AMAZON, PCI_DEVICE_ID_ENA_VF) },
158 { RTE_PCI_DEVICE(PCI_VENDOR_ID_AMAZON, PCI_DEVICE_ID_ENA_VF_RSERV0) },
162 static struct ena_aenq_handlers aenq_handlers;
164 static int ena_device_init(struct ena_com_dev *ena_dev,
165 struct ena_com_dev_get_features_ctx *get_feat_ctx,
167 static int ena_dev_configure(struct rte_eth_dev *dev);
168 static void ena_tx_map_mbuf(struct ena_ring *tx_ring,
169 struct ena_tx_buffer *tx_info,
170 struct rte_mbuf *mbuf,
172 uint16_t *header_len);
173 static int ena_xmit_mbuf(struct ena_ring *tx_ring, struct rte_mbuf *mbuf);
174 static void ena_tx_cleanup(struct ena_ring *tx_ring);
175 static uint16_t eth_ena_xmit_pkts(void *tx_queue, struct rte_mbuf **tx_pkts,
177 static uint16_t eth_ena_prep_pkts(void *tx_queue, struct rte_mbuf **tx_pkts,
179 static int ena_tx_queue_setup(struct rte_eth_dev *dev, uint16_t queue_idx,
180 uint16_t nb_desc, unsigned int socket_id,
181 const struct rte_eth_txconf *tx_conf);
182 static int ena_rx_queue_setup(struct rte_eth_dev *dev, uint16_t queue_idx,
183 uint16_t nb_desc, unsigned int socket_id,
184 const struct rte_eth_rxconf *rx_conf,
185 struct rte_mempool *mp);
186 static inline void ena_init_rx_mbuf(struct rte_mbuf *mbuf, uint16_t len);
187 static struct rte_mbuf *ena_rx_mbuf(struct ena_ring *rx_ring,
188 struct ena_com_rx_buf_info *ena_bufs,
190 uint16_t *next_to_clean,
192 static uint16_t eth_ena_recv_pkts(void *rx_queue,
193 struct rte_mbuf **rx_pkts, uint16_t nb_pkts);
194 static int ena_add_single_rx_desc(struct ena_com_io_sq *io_sq,
195 struct rte_mbuf *mbuf, uint16_t id);
196 static int ena_populate_rx_queue(struct ena_ring *rxq, unsigned int count);
197 static void ena_init_rings(struct ena_adapter *adapter,
198 bool disable_meta_caching);
199 static int ena_mtu_set(struct rte_eth_dev *dev, uint16_t mtu);
200 static int ena_start(struct rte_eth_dev *dev);
201 static int ena_stop(struct rte_eth_dev *dev);
202 static int ena_close(struct rte_eth_dev *dev);
203 static int ena_dev_reset(struct rte_eth_dev *dev);
204 static int ena_stats_get(struct rte_eth_dev *dev, struct rte_eth_stats *stats);
205 static void ena_rx_queue_release_all(struct rte_eth_dev *dev);
206 static void ena_tx_queue_release_all(struct rte_eth_dev *dev);
207 static void ena_rx_queue_release(void *queue);
208 static void ena_tx_queue_release(void *queue);
209 static void ena_rx_queue_release_bufs(struct ena_ring *ring);
210 static void ena_tx_queue_release_bufs(struct ena_ring *ring);
211 static int ena_link_update(struct rte_eth_dev *dev,
212 int wait_to_complete);
213 static int ena_create_io_queue(struct ena_ring *ring);
214 static void ena_queue_stop(struct ena_ring *ring);
215 static void ena_queue_stop_all(struct rte_eth_dev *dev,
216 enum ena_ring_type ring_type);
217 static int ena_queue_start(struct ena_ring *ring);
218 static int ena_queue_start_all(struct rte_eth_dev *dev,
219 enum ena_ring_type ring_type);
220 static void ena_stats_restart(struct rte_eth_dev *dev);
221 static int ena_infos_get(struct rte_eth_dev *dev,
222 struct rte_eth_dev_info *dev_info);
223 static int ena_rss_reta_update(struct rte_eth_dev *dev,
224 struct rte_eth_rss_reta_entry64 *reta_conf,
226 static int ena_rss_reta_query(struct rte_eth_dev *dev,
227 struct rte_eth_rss_reta_entry64 *reta_conf,
229 static void ena_interrupt_handler_rte(void *cb_arg);
230 static void ena_timer_wd_callback(struct rte_timer *timer, void *arg);
231 static void ena_destroy_device(struct rte_eth_dev *eth_dev);
232 static int eth_ena_dev_init(struct rte_eth_dev *eth_dev);
233 static int ena_xstats_get_names(struct rte_eth_dev *dev,
234 struct rte_eth_xstat_name *xstats_names,
236 static int ena_xstats_get(struct rte_eth_dev *dev,
237 struct rte_eth_xstat *stats,
239 static int ena_xstats_get_by_id(struct rte_eth_dev *dev,
243 static int ena_process_bool_devarg(const char *key,
246 static int ena_parse_devargs(struct ena_adapter *adapter,
247 struct rte_devargs *devargs);
248 static int ena_copy_eni_stats(struct ena_adapter *adapter);
250 static const struct eth_dev_ops ena_dev_ops = {
251 .dev_configure = ena_dev_configure,
252 .dev_infos_get = ena_infos_get,
253 .rx_queue_setup = ena_rx_queue_setup,
254 .tx_queue_setup = ena_tx_queue_setup,
255 .dev_start = ena_start,
256 .dev_stop = ena_stop,
257 .link_update = ena_link_update,
258 .stats_get = ena_stats_get,
259 .xstats_get_names = ena_xstats_get_names,
260 .xstats_get = ena_xstats_get,
261 .xstats_get_by_id = ena_xstats_get_by_id,
262 .mtu_set = ena_mtu_set,
263 .rx_queue_release = ena_rx_queue_release,
264 .tx_queue_release = ena_tx_queue_release,
265 .dev_close = ena_close,
266 .dev_reset = ena_dev_reset,
267 .reta_update = ena_rss_reta_update,
268 .reta_query = ena_rss_reta_query,
271 void ena_rss_key_fill(void *key, size_t size)
273 static bool key_generated;
274 static uint8_t default_key[ENA_HASH_KEY_SIZE];
277 RTE_ASSERT(size <= ENA_HASH_KEY_SIZE);
279 if (!key_generated) {
280 for (i = 0; i < ENA_HASH_KEY_SIZE; ++i)
281 default_key[i] = rte_rand() & 0xff;
282 key_generated = true;
285 rte_memcpy(key, default_key, size);
288 static inline void ena_rx_mbuf_prepare(struct rte_mbuf *mbuf,
289 struct ena_com_rx_ctx *ena_rx_ctx)
291 uint64_t ol_flags = 0;
292 uint32_t packet_type = 0;
294 if (ena_rx_ctx->l4_proto == ENA_ETH_IO_L4_PROTO_TCP)
295 packet_type |= RTE_PTYPE_L4_TCP;
296 else if (ena_rx_ctx->l4_proto == ENA_ETH_IO_L4_PROTO_UDP)
297 packet_type |= RTE_PTYPE_L4_UDP;
299 if (ena_rx_ctx->l3_proto == ENA_ETH_IO_L3_PROTO_IPV4) {
300 packet_type |= RTE_PTYPE_L3_IPV4;
301 if (unlikely(ena_rx_ctx->l3_csum_err))
302 ol_flags |= PKT_RX_IP_CKSUM_BAD;
304 ol_flags |= PKT_RX_IP_CKSUM_GOOD;
305 } else if (ena_rx_ctx->l3_proto == ENA_ETH_IO_L3_PROTO_IPV6) {
306 packet_type |= RTE_PTYPE_L3_IPV6;
309 if (!ena_rx_ctx->l4_csum_checked || ena_rx_ctx->frag)
310 ol_flags |= PKT_RX_L4_CKSUM_UNKNOWN;
312 if (unlikely(ena_rx_ctx->l4_csum_err))
313 ol_flags |= PKT_RX_L4_CKSUM_BAD;
315 ol_flags |= PKT_RX_L4_CKSUM_GOOD;
317 mbuf->ol_flags = ol_flags;
318 mbuf->packet_type = packet_type;
321 static inline void ena_tx_mbuf_prepare(struct rte_mbuf *mbuf,
322 struct ena_com_tx_ctx *ena_tx_ctx,
323 uint64_t queue_offloads,
324 bool disable_meta_caching)
326 struct ena_com_tx_meta *ena_meta = &ena_tx_ctx->ena_meta;
328 if ((mbuf->ol_flags & MBUF_OFFLOADS) &&
329 (queue_offloads & QUEUE_OFFLOADS)) {
330 /* check if TSO is required */
331 if ((mbuf->ol_flags & PKT_TX_TCP_SEG) &&
332 (queue_offloads & DEV_TX_OFFLOAD_TCP_TSO)) {
333 ena_tx_ctx->tso_enable = true;
335 ena_meta->l4_hdr_len = GET_L4_HDR_LEN(mbuf);
338 /* check if L3 checksum is needed */
339 if ((mbuf->ol_flags & PKT_TX_IP_CKSUM) &&
340 (queue_offloads & DEV_TX_OFFLOAD_IPV4_CKSUM))
341 ena_tx_ctx->l3_csum_enable = true;
343 if (mbuf->ol_flags & PKT_TX_IPV6) {
344 ena_tx_ctx->l3_proto = ENA_ETH_IO_L3_PROTO_IPV6;
346 ena_tx_ctx->l3_proto = ENA_ETH_IO_L3_PROTO_IPV4;
348 /* set don't fragment (DF) flag */
349 if (mbuf->packet_type &
350 (RTE_PTYPE_L4_NONFRAG
351 | RTE_PTYPE_INNER_L4_NONFRAG))
352 ena_tx_ctx->df = true;
355 /* check if L4 checksum is needed */
356 if (((mbuf->ol_flags & PKT_TX_L4_MASK) == PKT_TX_TCP_CKSUM) &&
357 (queue_offloads & DEV_TX_OFFLOAD_TCP_CKSUM)) {
358 ena_tx_ctx->l4_proto = ENA_ETH_IO_L4_PROTO_TCP;
359 ena_tx_ctx->l4_csum_enable = true;
360 } else if (((mbuf->ol_flags & PKT_TX_L4_MASK) ==
362 (queue_offloads & DEV_TX_OFFLOAD_UDP_CKSUM)) {
363 ena_tx_ctx->l4_proto = ENA_ETH_IO_L4_PROTO_UDP;
364 ena_tx_ctx->l4_csum_enable = true;
366 ena_tx_ctx->l4_proto = ENA_ETH_IO_L4_PROTO_UNKNOWN;
367 ena_tx_ctx->l4_csum_enable = false;
370 ena_meta->mss = mbuf->tso_segsz;
371 ena_meta->l3_hdr_len = mbuf->l3_len;
372 ena_meta->l3_hdr_offset = mbuf->l2_len;
374 ena_tx_ctx->meta_valid = true;
375 } else if (disable_meta_caching) {
376 memset(ena_meta, 0, sizeof(*ena_meta));
377 ena_tx_ctx->meta_valid = true;
379 ena_tx_ctx->meta_valid = false;
383 static int validate_tx_req_id(struct ena_ring *tx_ring, u16 req_id)
385 struct ena_tx_buffer *tx_info = NULL;
387 if (likely(req_id < tx_ring->ring_size)) {
388 tx_info = &tx_ring->tx_buffer_info[req_id];
389 if (likely(tx_info->mbuf))
394 PMD_DRV_LOG(ERR, "tx_info doesn't have valid mbuf\n");
396 PMD_DRV_LOG(ERR, "Invalid req_id: %hu\n", req_id);
398 /* Trigger device reset */
399 ++tx_ring->tx_stats.bad_req_id;
400 tx_ring->adapter->reset_reason = ENA_REGS_RESET_INV_TX_REQ_ID;
401 tx_ring->adapter->trigger_reset = true;
405 static void ena_config_host_info(struct ena_com_dev *ena_dev)
407 struct ena_admin_host_info *host_info;
410 /* Allocate only the host info */
411 rc = ena_com_allocate_host_info(ena_dev);
413 PMD_DRV_LOG(ERR, "Cannot allocate host info\n");
417 host_info = ena_dev->host_attr.host_info;
419 host_info->os_type = ENA_ADMIN_OS_DPDK;
420 host_info->kernel_ver = RTE_VERSION;
421 strlcpy((char *)host_info->kernel_ver_str, rte_version(),
422 sizeof(host_info->kernel_ver_str));
423 host_info->os_dist = RTE_VERSION;
424 strlcpy((char *)host_info->os_dist_str, rte_version(),
425 sizeof(host_info->os_dist_str));
426 host_info->driver_version =
427 (DRV_MODULE_VER_MAJOR) |
428 (DRV_MODULE_VER_MINOR << ENA_ADMIN_HOST_INFO_MINOR_SHIFT) |
429 (DRV_MODULE_VER_SUBMINOR <<
430 ENA_ADMIN_HOST_INFO_SUB_MINOR_SHIFT);
431 host_info->num_cpus = rte_lcore_count();
433 host_info->driver_supported_features =
434 ENA_ADMIN_HOST_INFO_RX_OFFSET_MASK;
436 rc = ena_com_set_host_attributes(ena_dev);
438 if (rc == -ENA_COM_UNSUPPORTED)
439 PMD_DRV_LOG(WARNING, "Cannot set host attributes\n");
441 PMD_DRV_LOG(ERR, "Cannot set host attributes\n");
449 ena_com_delete_host_info(ena_dev);
452 /* This function calculates the number of xstats based on the current config */
453 static unsigned int ena_xstats_calc_num(struct rte_eth_dev *dev)
455 return ENA_STATS_ARRAY_GLOBAL + ENA_STATS_ARRAY_ENI +
456 (dev->data->nb_tx_queues * ENA_STATS_ARRAY_TX) +
457 (dev->data->nb_rx_queues * ENA_STATS_ARRAY_RX);
460 static void ena_config_debug_area(struct ena_adapter *adapter)
465 ss_count = ena_xstats_calc_num(adapter->rte_dev);
467 /* allocate 32 bytes for each string and 64bit for the value */
468 debug_area_size = ss_count * ETH_GSTRING_LEN + sizeof(u64) * ss_count;
470 rc = ena_com_allocate_debug_area(&adapter->ena_dev, debug_area_size);
472 PMD_DRV_LOG(ERR, "Cannot allocate debug area\n");
476 rc = ena_com_set_host_attributes(&adapter->ena_dev);
478 if (rc == -ENA_COM_UNSUPPORTED)
479 PMD_DRV_LOG(WARNING, "Cannot set host attributes\n");
481 PMD_DRV_LOG(ERR, "Cannot set host attributes\n");
488 ena_com_delete_debug_area(&adapter->ena_dev);
491 static int ena_close(struct rte_eth_dev *dev)
493 struct rte_pci_device *pci_dev = RTE_ETH_DEV_TO_PCI(dev);
494 struct rte_intr_handle *intr_handle = &pci_dev->intr_handle;
495 struct ena_adapter *adapter = dev->data->dev_private;
498 if (rte_eal_process_type() != RTE_PROC_PRIMARY)
501 if (adapter->state == ENA_ADAPTER_STATE_RUNNING)
503 adapter->state = ENA_ADAPTER_STATE_CLOSED;
505 ena_rx_queue_release_all(dev);
506 ena_tx_queue_release_all(dev);
508 rte_free(adapter->drv_stats);
509 adapter->drv_stats = NULL;
511 rte_intr_disable(intr_handle);
512 rte_intr_callback_unregister(intr_handle,
513 ena_interrupt_handler_rte,
517 * MAC is not allocated dynamically. Setting NULL should prevent from
518 * release of the resource in the rte_eth_dev_release_port().
520 dev->data->mac_addrs = NULL;
526 ena_dev_reset(struct rte_eth_dev *dev)
530 ena_destroy_device(dev);
531 rc = eth_ena_dev_init(dev);
533 PMD_INIT_LOG(CRIT, "Cannot initialize device");
538 static int ena_rss_reta_update(struct rte_eth_dev *dev,
539 struct rte_eth_rss_reta_entry64 *reta_conf,
542 struct ena_adapter *adapter = dev->data->dev_private;
543 struct ena_com_dev *ena_dev = &adapter->ena_dev;
549 if ((reta_size == 0) || (reta_conf == NULL))
552 if (reta_size > ENA_RX_RSS_TABLE_SIZE) {
554 "indirection table %d is bigger than supported (%d)\n",
555 reta_size, ENA_RX_RSS_TABLE_SIZE);
559 for (i = 0 ; i < reta_size ; i++) {
560 /* each reta_conf is for 64 entries.
561 * to support 128 we use 2 conf of 64
563 conf_idx = i / RTE_RETA_GROUP_SIZE;
564 idx = i % RTE_RETA_GROUP_SIZE;
565 if (TEST_BIT(reta_conf[conf_idx].mask, idx)) {
567 ENA_IO_RXQ_IDX(reta_conf[conf_idx].reta[idx]);
569 rc = ena_com_indirect_table_fill_entry(ena_dev,
572 if (unlikely(rc && rc != ENA_COM_UNSUPPORTED)) {
574 "Cannot fill indirect table\n");
580 rte_spinlock_lock(&adapter->admin_lock);
581 rc = ena_com_indirect_table_set(ena_dev);
582 rte_spinlock_unlock(&adapter->admin_lock);
583 if (unlikely(rc && rc != ENA_COM_UNSUPPORTED)) {
584 PMD_DRV_LOG(ERR, "Cannot flush the indirect table\n");
588 PMD_DRV_LOG(DEBUG, "%s(): RSS configured %d entries for port %d\n",
589 __func__, reta_size, adapter->rte_dev->data->port_id);
594 /* Query redirection table. */
595 static int ena_rss_reta_query(struct rte_eth_dev *dev,
596 struct rte_eth_rss_reta_entry64 *reta_conf,
599 struct ena_adapter *adapter = dev->data->dev_private;
600 struct ena_com_dev *ena_dev = &adapter->ena_dev;
603 u32 indirect_table[ENA_RX_RSS_TABLE_SIZE] = {0};
607 if (reta_size == 0 || reta_conf == NULL ||
608 (reta_size > RTE_RETA_GROUP_SIZE && ((reta_conf + 1) == NULL)))
611 rte_spinlock_lock(&adapter->admin_lock);
612 rc = ena_com_indirect_table_get(ena_dev, indirect_table);
613 rte_spinlock_unlock(&adapter->admin_lock);
614 if (unlikely(rc && rc != ENA_COM_UNSUPPORTED)) {
615 PMD_DRV_LOG(ERR, "cannot get indirect table\n");
619 for (i = 0 ; i < reta_size ; i++) {
620 reta_conf_idx = i / RTE_RETA_GROUP_SIZE;
621 reta_idx = i % RTE_RETA_GROUP_SIZE;
622 if (TEST_BIT(reta_conf[reta_conf_idx].mask, reta_idx))
623 reta_conf[reta_conf_idx].reta[reta_idx] =
624 ENA_IO_RXQ_IDX_REV(indirect_table[i]);
630 static int ena_rss_init_default(struct ena_adapter *adapter)
632 struct ena_com_dev *ena_dev = &adapter->ena_dev;
633 uint16_t nb_rx_queues = adapter->rte_dev->data->nb_rx_queues;
637 rc = ena_com_rss_init(ena_dev, ENA_RX_RSS_TABLE_LOG_SIZE);
639 PMD_DRV_LOG(ERR, "Cannot init indirect table\n");
643 for (i = 0; i < ENA_RX_RSS_TABLE_SIZE; i++) {
644 val = i % nb_rx_queues;
645 rc = ena_com_indirect_table_fill_entry(ena_dev, i,
646 ENA_IO_RXQ_IDX(val));
647 if (unlikely(rc && (rc != ENA_COM_UNSUPPORTED))) {
648 PMD_DRV_LOG(ERR, "Cannot fill indirect table\n");
653 rc = ena_com_fill_hash_function(ena_dev, ENA_ADMIN_CRC32, NULL,
654 ENA_HASH_KEY_SIZE, 0xFFFFFFFF);
655 if (unlikely(rc && (rc != ENA_COM_UNSUPPORTED))) {
656 PMD_DRV_LOG(INFO, "Cannot fill hash function\n");
660 rc = ena_com_set_default_hash_ctrl(ena_dev);
661 if (unlikely(rc && (rc != ENA_COM_UNSUPPORTED))) {
662 PMD_DRV_LOG(INFO, "Cannot fill hash control\n");
666 rc = ena_com_indirect_table_set(ena_dev);
667 if (unlikely(rc && (rc != ENA_COM_UNSUPPORTED))) {
668 PMD_DRV_LOG(ERR, "Cannot flush the indirect table\n");
671 PMD_DRV_LOG(DEBUG, "RSS configured for port %d\n",
672 adapter->rte_dev->data->port_id);
677 ena_com_rss_destroy(ena_dev);
683 static void ena_rx_queue_release_all(struct rte_eth_dev *dev)
685 struct ena_ring **queues = (struct ena_ring **)dev->data->rx_queues;
686 int nb_queues = dev->data->nb_rx_queues;
689 for (i = 0; i < nb_queues; i++)
690 ena_rx_queue_release(queues[i]);
693 static void ena_tx_queue_release_all(struct rte_eth_dev *dev)
695 struct ena_ring **queues = (struct ena_ring **)dev->data->tx_queues;
696 int nb_queues = dev->data->nb_tx_queues;
699 for (i = 0; i < nb_queues; i++)
700 ena_tx_queue_release(queues[i]);
703 static void ena_rx_queue_release(void *queue)
705 struct ena_ring *ring = (struct ena_ring *)queue;
707 /* Free ring resources */
708 if (ring->rx_buffer_info)
709 rte_free(ring->rx_buffer_info);
710 ring->rx_buffer_info = NULL;
712 if (ring->rx_refill_buffer)
713 rte_free(ring->rx_refill_buffer);
714 ring->rx_refill_buffer = NULL;
716 if (ring->empty_rx_reqs)
717 rte_free(ring->empty_rx_reqs);
718 ring->empty_rx_reqs = NULL;
720 ring->configured = 0;
722 PMD_DRV_LOG(NOTICE, "RX Queue %d:%d released\n",
723 ring->port_id, ring->id);
726 static void ena_tx_queue_release(void *queue)
728 struct ena_ring *ring = (struct ena_ring *)queue;
730 /* Free ring resources */
731 if (ring->push_buf_intermediate_buf)
732 rte_free(ring->push_buf_intermediate_buf);
734 if (ring->tx_buffer_info)
735 rte_free(ring->tx_buffer_info);
737 if (ring->empty_tx_reqs)
738 rte_free(ring->empty_tx_reqs);
740 ring->empty_tx_reqs = NULL;
741 ring->tx_buffer_info = NULL;
742 ring->push_buf_intermediate_buf = NULL;
744 ring->configured = 0;
746 PMD_DRV_LOG(NOTICE, "TX Queue %d:%d released\n",
747 ring->port_id, ring->id);
750 static void ena_rx_queue_release_bufs(struct ena_ring *ring)
754 for (i = 0; i < ring->ring_size; ++i) {
755 struct ena_rx_buffer *rx_info = &ring->rx_buffer_info[i];
757 rte_mbuf_raw_free(rx_info->mbuf);
758 rx_info->mbuf = NULL;
763 static void ena_tx_queue_release_bufs(struct ena_ring *ring)
767 for (i = 0; i < ring->ring_size; ++i) {
768 struct ena_tx_buffer *tx_buf = &ring->tx_buffer_info[i];
771 rte_pktmbuf_free(tx_buf->mbuf);
777 static int ena_link_update(struct rte_eth_dev *dev,
778 __rte_unused int wait_to_complete)
780 struct rte_eth_link *link = &dev->data->dev_link;
781 struct ena_adapter *adapter = dev->data->dev_private;
783 link->link_status = adapter->link_status ? ETH_LINK_UP : ETH_LINK_DOWN;
784 link->link_speed = ETH_SPEED_NUM_NONE;
785 link->link_duplex = ETH_LINK_FULL_DUPLEX;
790 static int ena_queue_start_all(struct rte_eth_dev *dev,
791 enum ena_ring_type ring_type)
793 struct ena_adapter *adapter = dev->data->dev_private;
794 struct ena_ring *queues = NULL;
799 if (ring_type == ENA_RING_TYPE_RX) {
800 queues = adapter->rx_ring;
801 nb_queues = dev->data->nb_rx_queues;
803 queues = adapter->tx_ring;
804 nb_queues = dev->data->nb_tx_queues;
806 for (i = 0; i < nb_queues; i++) {
807 if (queues[i].configured) {
808 if (ring_type == ENA_RING_TYPE_RX) {
810 dev->data->rx_queues[i] == &queues[i],
811 "Inconsistent state of rx queues\n");
814 dev->data->tx_queues[i] == &queues[i],
815 "Inconsistent state of tx queues\n");
818 rc = ena_queue_start(&queues[i]);
822 "failed to start queue %d type(%d)",
833 if (queues[i].configured)
834 ena_queue_stop(&queues[i]);
839 static uint32_t ena_get_mtu_conf(struct ena_adapter *adapter)
841 uint32_t max_frame_len = adapter->max_mtu;
843 if (adapter->rte_eth_dev_data->dev_conf.rxmode.offloads &
844 DEV_RX_OFFLOAD_JUMBO_FRAME)
846 adapter->rte_eth_dev_data->dev_conf.rxmode.max_rx_pkt_len;
848 return max_frame_len;
851 static int ena_check_valid_conf(struct ena_adapter *adapter)
853 uint32_t max_frame_len = ena_get_mtu_conf(adapter);
855 if (max_frame_len > adapter->max_mtu || max_frame_len < ENA_MIN_MTU) {
856 PMD_INIT_LOG(ERR, "Unsupported MTU of %d. "
857 "max mtu: %d, min mtu: %d",
858 max_frame_len, adapter->max_mtu, ENA_MIN_MTU);
859 return ENA_COM_UNSUPPORTED;
866 ena_calc_io_queue_size(struct ena_calc_queue_size_ctx *ctx,
867 bool use_large_llq_hdr)
869 struct ena_admin_feature_llq_desc *llq = &ctx->get_feat_ctx->llq;
870 struct ena_com_dev *ena_dev = ctx->ena_dev;
871 uint32_t max_tx_queue_size;
872 uint32_t max_rx_queue_size;
874 if (ena_dev->supported_features & BIT(ENA_ADMIN_MAX_QUEUES_EXT)) {
875 struct ena_admin_queue_ext_feature_fields *max_queue_ext =
876 &ctx->get_feat_ctx->max_queue_ext.max_queue_ext;
877 max_rx_queue_size = RTE_MIN(max_queue_ext->max_rx_cq_depth,
878 max_queue_ext->max_rx_sq_depth);
879 max_tx_queue_size = max_queue_ext->max_tx_cq_depth;
881 if (ena_dev->tx_mem_queue_type ==
882 ENA_ADMIN_PLACEMENT_POLICY_DEV) {
883 max_tx_queue_size = RTE_MIN(max_tx_queue_size,
886 max_tx_queue_size = RTE_MIN(max_tx_queue_size,
887 max_queue_ext->max_tx_sq_depth);
890 ctx->max_rx_sgl_size = RTE_MIN(ENA_PKT_MAX_BUFS,
891 max_queue_ext->max_per_packet_rx_descs);
892 ctx->max_tx_sgl_size = RTE_MIN(ENA_PKT_MAX_BUFS,
893 max_queue_ext->max_per_packet_tx_descs);
895 struct ena_admin_queue_feature_desc *max_queues =
896 &ctx->get_feat_ctx->max_queues;
897 max_rx_queue_size = RTE_MIN(max_queues->max_cq_depth,
898 max_queues->max_sq_depth);
899 max_tx_queue_size = max_queues->max_cq_depth;
901 if (ena_dev->tx_mem_queue_type ==
902 ENA_ADMIN_PLACEMENT_POLICY_DEV) {
903 max_tx_queue_size = RTE_MIN(max_tx_queue_size,
906 max_tx_queue_size = RTE_MIN(max_tx_queue_size,
907 max_queues->max_sq_depth);
910 ctx->max_rx_sgl_size = RTE_MIN(ENA_PKT_MAX_BUFS,
911 max_queues->max_packet_rx_descs);
912 ctx->max_tx_sgl_size = RTE_MIN(ENA_PKT_MAX_BUFS,
913 max_queues->max_packet_tx_descs);
916 /* Round down to the nearest power of 2 */
917 max_rx_queue_size = rte_align32prevpow2(max_rx_queue_size);
918 max_tx_queue_size = rte_align32prevpow2(max_tx_queue_size);
920 if (use_large_llq_hdr) {
921 if ((llq->entry_size_ctrl_supported &
922 ENA_ADMIN_LIST_ENTRY_SIZE_256B) &&
923 (ena_dev->tx_mem_queue_type ==
924 ENA_ADMIN_PLACEMENT_POLICY_DEV)) {
925 max_tx_queue_size /= 2;
927 "Forcing large headers and decreasing maximum TX queue size to %d\n",
931 "Forcing large headers failed: LLQ is disabled or device does not support large headers\n");
935 if (unlikely(max_rx_queue_size == 0 || max_tx_queue_size == 0)) {
936 PMD_INIT_LOG(ERR, "Invalid queue size");
940 ctx->max_tx_queue_size = max_tx_queue_size;
941 ctx->max_rx_queue_size = max_rx_queue_size;
946 static void ena_stats_restart(struct rte_eth_dev *dev)
948 struct ena_adapter *adapter = dev->data->dev_private;
950 rte_atomic64_init(&adapter->drv_stats->ierrors);
951 rte_atomic64_init(&adapter->drv_stats->oerrors);
952 rte_atomic64_init(&adapter->drv_stats->rx_nombuf);
953 adapter->drv_stats->rx_drops = 0;
956 static int ena_stats_get(struct rte_eth_dev *dev,
957 struct rte_eth_stats *stats)
959 struct ena_admin_basic_stats ena_stats;
960 struct ena_adapter *adapter = dev->data->dev_private;
961 struct ena_com_dev *ena_dev = &adapter->ena_dev;
966 if (rte_eal_process_type() != RTE_PROC_PRIMARY)
969 memset(&ena_stats, 0, sizeof(ena_stats));
971 rte_spinlock_lock(&adapter->admin_lock);
972 rc = ena_com_get_dev_basic_stats(ena_dev, &ena_stats);
973 rte_spinlock_unlock(&adapter->admin_lock);
975 PMD_DRV_LOG(ERR, "Could not retrieve statistics from ENA\n");
979 /* Set of basic statistics from ENA */
980 stats->ipackets = __MERGE_64B_H_L(ena_stats.rx_pkts_high,
981 ena_stats.rx_pkts_low);
982 stats->opackets = __MERGE_64B_H_L(ena_stats.tx_pkts_high,
983 ena_stats.tx_pkts_low);
984 stats->ibytes = __MERGE_64B_H_L(ena_stats.rx_bytes_high,
985 ena_stats.rx_bytes_low);
986 stats->obytes = __MERGE_64B_H_L(ena_stats.tx_bytes_high,
987 ena_stats.tx_bytes_low);
989 /* Driver related stats */
990 stats->imissed = adapter->drv_stats->rx_drops;
991 stats->ierrors = rte_atomic64_read(&adapter->drv_stats->ierrors);
992 stats->oerrors = rte_atomic64_read(&adapter->drv_stats->oerrors);
993 stats->rx_nombuf = rte_atomic64_read(&adapter->drv_stats->rx_nombuf);
995 max_rings_stats = RTE_MIN(dev->data->nb_rx_queues,
996 RTE_ETHDEV_QUEUE_STAT_CNTRS);
997 for (i = 0; i < max_rings_stats; ++i) {
998 struct ena_stats_rx *rx_stats = &adapter->rx_ring[i].rx_stats;
1000 stats->q_ibytes[i] = rx_stats->bytes;
1001 stats->q_ipackets[i] = rx_stats->cnt;
1002 stats->q_errors[i] = rx_stats->bad_desc_num +
1003 rx_stats->bad_req_id;
1006 max_rings_stats = RTE_MIN(dev->data->nb_tx_queues,
1007 RTE_ETHDEV_QUEUE_STAT_CNTRS);
1008 for (i = 0; i < max_rings_stats; ++i) {
1009 struct ena_stats_tx *tx_stats = &adapter->tx_ring[i].tx_stats;
1011 stats->q_obytes[i] = tx_stats->bytes;
1012 stats->q_opackets[i] = tx_stats->cnt;
1018 static int ena_mtu_set(struct rte_eth_dev *dev, uint16_t mtu)
1020 struct ena_adapter *adapter;
1021 struct ena_com_dev *ena_dev;
1024 ena_assert_msg(dev->data != NULL, "Uninitialized device\n");
1025 ena_assert_msg(dev->data->dev_private != NULL, "Uninitialized device\n");
1026 adapter = dev->data->dev_private;
1028 ena_dev = &adapter->ena_dev;
1029 ena_assert_msg(ena_dev != NULL, "Uninitialized device\n");
1031 if (mtu > ena_get_mtu_conf(adapter) || mtu < ENA_MIN_MTU) {
1033 "Invalid MTU setting. new_mtu: %d "
1034 "max mtu: %d min mtu: %d\n",
1035 mtu, ena_get_mtu_conf(adapter), ENA_MIN_MTU);
1039 rc = ena_com_set_dev_mtu(ena_dev, mtu);
1041 PMD_DRV_LOG(ERR, "Could not set MTU: %d\n", mtu);
1043 PMD_DRV_LOG(NOTICE, "Set MTU: %d\n", mtu);
1048 static int ena_start(struct rte_eth_dev *dev)
1050 struct ena_adapter *adapter = dev->data->dev_private;
1054 rc = ena_check_valid_conf(adapter);
1058 rc = ena_queue_start_all(dev, ENA_RING_TYPE_RX);
1062 rc = ena_queue_start_all(dev, ENA_RING_TYPE_TX);
1066 if (adapter->rte_dev->data->dev_conf.rxmode.mq_mode &
1067 ETH_MQ_RX_RSS_FLAG && adapter->rte_dev->data->nb_rx_queues > 0) {
1068 rc = ena_rss_init_default(adapter);
1073 ena_stats_restart(dev);
1075 adapter->timestamp_wd = rte_get_timer_cycles();
1076 adapter->keep_alive_timeout = ENA_DEVICE_KALIVE_TIMEOUT;
1078 ticks = rte_get_timer_hz();
1079 rte_timer_reset(&adapter->timer_wd, ticks, PERIODICAL, rte_lcore_id(),
1080 ena_timer_wd_callback, adapter);
1082 ++adapter->dev_stats.dev_start;
1083 adapter->state = ENA_ADAPTER_STATE_RUNNING;
1088 ena_queue_stop_all(dev, ENA_RING_TYPE_TX);
1090 ena_queue_stop_all(dev, ENA_RING_TYPE_RX);
1094 static int ena_stop(struct rte_eth_dev *dev)
1096 struct ena_adapter *adapter = dev->data->dev_private;
1097 struct ena_com_dev *ena_dev = &adapter->ena_dev;
1100 rte_timer_stop_sync(&adapter->timer_wd);
1101 ena_queue_stop_all(dev, ENA_RING_TYPE_TX);
1102 ena_queue_stop_all(dev, ENA_RING_TYPE_RX);
1104 if (adapter->trigger_reset) {
1105 rc = ena_com_dev_reset(ena_dev, adapter->reset_reason);
1107 PMD_DRV_LOG(ERR, "Device reset failed rc=%d\n", rc);
1110 ++adapter->dev_stats.dev_stop;
1111 adapter->state = ENA_ADAPTER_STATE_STOPPED;
1112 dev->data->dev_started = 0;
1117 static int ena_create_io_queue(struct ena_ring *ring)
1119 struct ena_adapter *adapter;
1120 struct ena_com_dev *ena_dev;
1121 struct ena_com_create_io_ctx ctx =
1122 /* policy set to _HOST just to satisfy icc compiler */
1123 { ENA_ADMIN_PLACEMENT_POLICY_HOST,
1129 adapter = ring->adapter;
1130 ena_dev = &adapter->ena_dev;
1132 if (ring->type == ENA_RING_TYPE_TX) {
1133 ena_qid = ENA_IO_TXQ_IDX(ring->id);
1134 ctx.direction = ENA_COM_IO_QUEUE_DIRECTION_TX;
1135 ctx.mem_queue_type = ena_dev->tx_mem_queue_type;
1136 for (i = 0; i < ring->ring_size; i++)
1137 ring->empty_tx_reqs[i] = i;
1139 ena_qid = ENA_IO_RXQ_IDX(ring->id);
1140 ctx.direction = ENA_COM_IO_QUEUE_DIRECTION_RX;
1141 for (i = 0; i < ring->ring_size; i++)
1142 ring->empty_rx_reqs[i] = i;
1144 ctx.queue_size = ring->ring_size;
1146 ctx.msix_vector = -1; /* interrupts not used */
1147 ctx.numa_node = ring->numa_socket_id;
1149 rc = ena_com_create_io_queue(ena_dev, &ctx);
1152 "failed to create io queue #%d (qid:%d) rc: %d\n",
1153 ring->id, ena_qid, rc);
1157 rc = ena_com_get_io_handlers(ena_dev, ena_qid,
1158 &ring->ena_com_io_sq,
1159 &ring->ena_com_io_cq);
1162 "Failed to get io queue handlers. queue num %d rc: %d\n",
1164 ena_com_destroy_io_queue(ena_dev, ena_qid);
1168 if (ring->type == ENA_RING_TYPE_TX)
1169 ena_com_update_numa_node(ring->ena_com_io_cq, ctx.numa_node);
1174 static void ena_queue_stop(struct ena_ring *ring)
1176 struct ena_com_dev *ena_dev = &ring->adapter->ena_dev;
1178 if (ring->type == ENA_RING_TYPE_RX) {
1179 ena_com_destroy_io_queue(ena_dev, ENA_IO_RXQ_IDX(ring->id));
1180 ena_rx_queue_release_bufs(ring);
1182 ena_com_destroy_io_queue(ena_dev, ENA_IO_TXQ_IDX(ring->id));
1183 ena_tx_queue_release_bufs(ring);
1187 static void ena_queue_stop_all(struct rte_eth_dev *dev,
1188 enum ena_ring_type ring_type)
1190 struct ena_adapter *adapter = dev->data->dev_private;
1191 struct ena_ring *queues = NULL;
1192 uint16_t nb_queues, i;
1194 if (ring_type == ENA_RING_TYPE_RX) {
1195 queues = adapter->rx_ring;
1196 nb_queues = dev->data->nb_rx_queues;
1198 queues = adapter->tx_ring;
1199 nb_queues = dev->data->nb_tx_queues;
1202 for (i = 0; i < nb_queues; ++i)
1203 if (queues[i].configured)
1204 ena_queue_stop(&queues[i]);
1207 static int ena_queue_start(struct ena_ring *ring)
1211 ena_assert_msg(ring->configured == 1,
1212 "Trying to start unconfigured queue\n");
1214 rc = ena_create_io_queue(ring);
1216 PMD_INIT_LOG(ERR, "Failed to create IO queue!");
1220 ring->next_to_clean = 0;
1221 ring->next_to_use = 0;
1223 if (ring->type == ENA_RING_TYPE_TX) {
1224 ring->tx_stats.available_desc =
1225 ena_com_free_q_entries(ring->ena_com_io_sq);
1229 bufs_num = ring->ring_size - 1;
1230 rc = ena_populate_rx_queue(ring, bufs_num);
1231 if (rc != bufs_num) {
1232 ena_com_destroy_io_queue(&ring->adapter->ena_dev,
1233 ENA_IO_RXQ_IDX(ring->id));
1234 PMD_INIT_LOG(ERR, "Failed to populate rx ring !");
1235 return ENA_COM_FAULT;
1237 /* Flush per-core RX buffers pools cache as they can be used on other
1240 rte_mempool_cache_flush(NULL, ring->mb_pool);
1245 static int ena_tx_queue_setup(struct rte_eth_dev *dev,
1248 unsigned int socket_id,
1249 const struct rte_eth_txconf *tx_conf)
1251 struct ena_ring *txq = NULL;
1252 struct ena_adapter *adapter = dev->data->dev_private;
1255 txq = &adapter->tx_ring[queue_idx];
1257 if (txq->configured) {
1259 "API violation. Queue %d is already configured\n",
1261 return ENA_COM_FAULT;
1264 if (!rte_is_power_of_2(nb_desc)) {
1266 "Unsupported size of TX queue: %d is not a power of 2.\n",
1271 if (nb_desc > adapter->max_tx_ring_size) {
1273 "Unsupported size of TX queue (max size: %d)\n",
1274 adapter->max_tx_ring_size);
1278 if (nb_desc == RTE_ETH_DEV_FALLBACK_TX_RINGSIZE)
1279 nb_desc = adapter->max_tx_ring_size;
1281 txq->port_id = dev->data->port_id;
1282 txq->next_to_clean = 0;
1283 txq->next_to_use = 0;
1284 txq->ring_size = nb_desc;
1285 txq->size_mask = nb_desc - 1;
1286 txq->numa_socket_id = socket_id;
1287 txq->pkts_without_db = false;
1289 txq->tx_buffer_info = rte_zmalloc("txq->tx_buffer_info",
1290 sizeof(struct ena_tx_buffer) *
1292 RTE_CACHE_LINE_SIZE);
1293 if (!txq->tx_buffer_info) {
1294 PMD_DRV_LOG(ERR, "failed to alloc mem for tx buffer info\n");
1298 txq->empty_tx_reqs = rte_zmalloc("txq->empty_tx_reqs",
1299 sizeof(u16) * txq->ring_size,
1300 RTE_CACHE_LINE_SIZE);
1301 if (!txq->empty_tx_reqs) {
1302 PMD_DRV_LOG(ERR, "failed to alloc mem for tx reqs\n");
1303 rte_free(txq->tx_buffer_info);
1307 txq->push_buf_intermediate_buf =
1308 rte_zmalloc("txq->push_buf_intermediate_buf",
1309 txq->tx_max_header_size,
1310 RTE_CACHE_LINE_SIZE);
1311 if (!txq->push_buf_intermediate_buf) {
1312 PMD_DRV_LOG(ERR, "failed to alloc push buff for LLQ\n");
1313 rte_free(txq->tx_buffer_info);
1314 rte_free(txq->empty_tx_reqs);
1318 for (i = 0; i < txq->ring_size; i++)
1319 txq->empty_tx_reqs[i] = i;
1321 if (tx_conf != NULL) {
1323 tx_conf->offloads | dev->data->dev_conf.txmode.offloads;
1325 /* Store pointer to this queue in upper layer */
1326 txq->configured = 1;
1327 dev->data->tx_queues[queue_idx] = txq;
1332 static int ena_rx_queue_setup(struct rte_eth_dev *dev,
1335 unsigned int socket_id,
1336 __rte_unused const struct rte_eth_rxconf *rx_conf,
1337 struct rte_mempool *mp)
1339 struct ena_adapter *adapter = dev->data->dev_private;
1340 struct ena_ring *rxq = NULL;
1344 rxq = &adapter->rx_ring[queue_idx];
1345 if (rxq->configured) {
1347 "API violation. Queue %d is already configured\n",
1349 return ENA_COM_FAULT;
1352 if (nb_desc == RTE_ETH_DEV_FALLBACK_RX_RINGSIZE)
1353 nb_desc = adapter->max_rx_ring_size;
1355 if (!rte_is_power_of_2(nb_desc)) {
1357 "Unsupported size of RX queue: %d is not a power of 2.\n",
1362 if (nb_desc > adapter->max_rx_ring_size) {
1364 "Unsupported size of RX queue (max size: %d)\n",
1365 adapter->max_rx_ring_size);
1369 /* ENA isn't supporting buffers smaller than 1400 bytes */
1370 buffer_size = rte_pktmbuf_data_room_size(mp) - RTE_PKTMBUF_HEADROOM;
1371 if (buffer_size < ENA_RX_BUF_MIN_SIZE) {
1373 "Unsupported size of RX buffer: %zu (min size: %d)\n",
1374 buffer_size, ENA_RX_BUF_MIN_SIZE);
1378 rxq->port_id = dev->data->port_id;
1379 rxq->next_to_clean = 0;
1380 rxq->next_to_use = 0;
1381 rxq->ring_size = nb_desc;
1382 rxq->size_mask = nb_desc - 1;
1383 rxq->numa_socket_id = socket_id;
1386 rxq->rx_buffer_info = rte_zmalloc("rxq->buffer_info",
1387 sizeof(struct ena_rx_buffer) * nb_desc,
1388 RTE_CACHE_LINE_SIZE);
1389 if (!rxq->rx_buffer_info) {
1390 PMD_DRV_LOG(ERR, "failed to alloc mem for rx buffer info\n");
1394 rxq->rx_refill_buffer = rte_zmalloc("rxq->rx_refill_buffer",
1395 sizeof(struct rte_mbuf *) * nb_desc,
1396 RTE_CACHE_LINE_SIZE);
1398 if (!rxq->rx_refill_buffer) {
1399 PMD_DRV_LOG(ERR, "failed to alloc mem for rx refill buffer\n");
1400 rte_free(rxq->rx_buffer_info);
1401 rxq->rx_buffer_info = NULL;
1405 rxq->empty_rx_reqs = rte_zmalloc("rxq->empty_rx_reqs",
1406 sizeof(uint16_t) * nb_desc,
1407 RTE_CACHE_LINE_SIZE);
1408 if (!rxq->empty_rx_reqs) {
1409 PMD_DRV_LOG(ERR, "failed to alloc mem for empty rx reqs\n");
1410 rte_free(rxq->rx_buffer_info);
1411 rxq->rx_buffer_info = NULL;
1412 rte_free(rxq->rx_refill_buffer);
1413 rxq->rx_refill_buffer = NULL;
1417 for (i = 0; i < nb_desc; i++)
1418 rxq->empty_rx_reqs[i] = i;
1420 /* Store pointer to this queue in upper layer */
1421 rxq->configured = 1;
1422 dev->data->rx_queues[queue_idx] = rxq;
1427 static int ena_add_single_rx_desc(struct ena_com_io_sq *io_sq,
1428 struct rte_mbuf *mbuf, uint16_t id)
1430 struct ena_com_buf ebuf;
1433 /* prepare physical address for DMA transaction */
1434 ebuf.paddr = mbuf->buf_iova + RTE_PKTMBUF_HEADROOM;
1435 ebuf.len = mbuf->buf_len - RTE_PKTMBUF_HEADROOM;
1437 /* pass resource to device */
1438 rc = ena_com_add_single_rx_desc(io_sq, &ebuf, id);
1439 if (unlikely(rc != 0))
1440 PMD_DRV_LOG(WARNING, "failed adding rx desc\n");
1445 static int ena_populate_rx_queue(struct ena_ring *rxq, unsigned int count)
1449 uint16_t next_to_use = rxq->next_to_use;
1450 uint16_t in_use, req_id;
1451 struct rte_mbuf **mbufs = rxq->rx_refill_buffer;
1453 if (unlikely(!count))
1456 in_use = rxq->ring_size - 1 -
1457 ena_com_free_q_entries(rxq->ena_com_io_sq);
1458 ena_assert_msg(((in_use + count) < rxq->ring_size),
1459 "bad ring state\n");
1461 /* get resources for incoming packets */
1462 rc = rte_pktmbuf_alloc_bulk(rxq->mb_pool, mbufs, count);
1463 if (unlikely(rc < 0)) {
1464 rte_atomic64_inc(&rxq->adapter->drv_stats->rx_nombuf);
1465 ++rxq->rx_stats.mbuf_alloc_fail;
1466 PMD_RX_LOG(DEBUG, "there are no enough free buffers");
1470 for (i = 0; i < count; i++) {
1471 struct rte_mbuf *mbuf = mbufs[i];
1472 struct ena_rx_buffer *rx_info;
1474 if (likely((i + 4) < count))
1475 rte_prefetch0(mbufs[i + 4]);
1477 req_id = rxq->empty_rx_reqs[next_to_use];
1478 rx_info = &rxq->rx_buffer_info[req_id];
1480 rc = ena_add_single_rx_desc(rxq->ena_com_io_sq, mbuf, req_id);
1481 if (unlikely(rc != 0))
1484 rx_info->mbuf = mbuf;
1485 next_to_use = ENA_IDX_NEXT_MASKED(next_to_use, rxq->size_mask);
1488 if (unlikely(i < count)) {
1489 PMD_DRV_LOG(WARNING, "refilled rx qid %d with only %d "
1490 "buffers (from %d)\n", rxq->id, i, count);
1491 rte_pktmbuf_free_bulk(&mbufs[i], count - i);
1492 ++rxq->rx_stats.refill_partial;
1495 /* When we submitted free recources to device... */
1496 if (likely(i > 0)) {
1497 /* ...let HW know that it can fill buffers with data. */
1498 ena_com_write_sq_doorbell(rxq->ena_com_io_sq);
1500 rxq->next_to_use = next_to_use;
1506 static int ena_device_init(struct ena_com_dev *ena_dev,
1507 struct ena_com_dev_get_features_ctx *get_feat_ctx,
1510 uint32_t aenq_groups;
1512 bool readless_supported;
1514 /* Initialize mmio registers */
1515 rc = ena_com_mmio_reg_read_request_init(ena_dev);
1517 PMD_DRV_LOG(ERR, "failed to init mmio read less\n");
1521 /* The PCIe configuration space revision id indicate if mmio reg
1524 readless_supported =
1525 !(((struct rte_pci_device *)ena_dev->dmadev)->id.class_id
1526 & ENA_MMIO_DISABLE_REG_READ);
1527 ena_com_set_mmio_read_mode(ena_dev, readless_supported);
1530 rc = ena_com_dev_reset(ena_dev, ENA_REGS_RESET_NORMAL);
1532 PMD_DRV_LOG(ERR, "cannot reset device\n");
1533 goto err_mmio_read_less;
1536 /* check FW version */
1537 rc = ena_com_validate_version(ena_dev);
1539 PMD_DRV_LOG(ERR, "device version is too low\n");
1540 goto err_mmio_read_less;
1543 ena_dev->dma_addr_bits = ena_com_get_dma_width(ena_dev);
1545 /* ENA device administration layer init */
1546 rc = ena_com_admin_init(ena_dev, &aenq_handlers);
1549 "cannot initialize ena admin queue with device\n");
1550 goto err_mmio_read_less;
1553 /* To enable the msix interrupts the driver needs to know the number
1554 * of queues. So the driver uses polling mode to retrieve this
1557 ena_com_set_admin_polling_mode(ena_dev, true);
1559 ena_config_host_info(ena_dev);
1561 /* Get Device Attributes and features */
1562 rc = ena_com_get_dev_attr_feat(ena_dev, get_feat_ctx);
1565 "cannot get attribute for ena device rc= %d\n", rc);
1566 goto err_admin_init;
1569 aenq_groups = BIT(ENA_ADMIN_LINK_CHANGE) |
1570 BIT(ENA_ADMIN_NOTIFICATION) |
1571 BIT(ENA_ADMIN_KEEP_ALIVE) |
1572 BIT(ENA_ADMIN_FATAL_ERROR) |
1573 BIT(ENA_ADMIN_WARNING);
1575 aenq_groups &= get_feat_ctx->aenq.supported_groups;
1576 rc = ena_com_set_aenq_config(ena_dev, aenq_groups);
1578 PMD_DRV_LOG(ERR, "Cannot configure aenq groups rc: %d\n", rc);
1579 goto err_admin_init;
1582 *wd_state = !!(aenq_groups & BIT(ENA_ADMIN_KEEP_ALIVE));
1587 ena_com_admin_destroy(ena_dev);
1590 ena_com_mmio_reg_read_request_destroy(ena_dev);
1595 static void ena_interrupt_handler_rte(void *cb_arg)
1597 struct ena_adapter *adapter = cb_arg;
1598 struct ena_com_dev *ena_dev = &adapter->ena_dev;
1600 ena_com_admin_q_comp_intr_handler(ena_dev);
1601 if (likely(adapter->state != ENA_ADAPTER_STATE_CLOSED))
1602 ena_com_aenq_intr_handler(ena_dev, adapter);
1605 static void check_for_missing_keep_alive(struct ena_adapter *adapter)
1607 if (!adapter->wd_state)
1610 if (adapter->keep_alive_timeout == ENA_HW_HINTS_NO_TIMEOUT)
1613 if (unlikely((rte_get_timer_cycles() - adapter->timestamp_wd) >=
1614 adapter->keep_alive_timeout)) {
1615 PMD_DRV_LOG(ERR, "Keep alive timeout\n");
1616 adapter->reset_reason = ENA_REGS_RESET_KEEP_ALIVE_TO;
1617 adapter->trigger_reset = true;
1618 ++adapter->dev_stats.wd_expired;
1622 /* Check if admin queue is enabled */
1623 static void check_for_admin_com_state(struct ena_adapter *adapter)
1625 if (unlikely(!ena_com_get_admin_running_state(&adapter->ena_dev))) {
1626 PMD_DRV_LOG(ERR, "ENA admin queue is not in running state!\n");
1627 adapter->reset_reason = ENA_REGS_RESET_ADMIN_TO;
1628 adapter->trigger_reset = true;
1632 static void ena_timer_wd_callback(__rte_unused struct rte_timer *timer,
1635 struct ena_adapter *adapter = arg;
1636 struct rte_eth_dev *dev = adapter->rte_dev;
1638 check_for_missing_keep_alive(adapter);
1639 check_for_admin_com_state(adapter);
1641 if (unlikely(adapter->trigger_reset)) {
1642 PMD_DRV_LOG(ERR, "Trigger reset is on\n");
1643 rte_eth_dev_callback_process(dev, RTE_ETH_EVENT_INTR_RESET,
1649 set_default_llq_configurations(struct ena_llq_configurations *llq_config,
1650 struct ena_admin_feature_llq_desc *llq,
1651 bool use_large_llq_hdr)
1653 llq_config->llq_header_location = ENA_ADMIN_INLINE_HEADER;
1654 llq_config->llq_stride_ctrl = ENA_ADMIN_MULTIPLE_DESCS_PER_ENTRY;
1655 llq_config->llq_num_decs_before_header =
1656 ENA_ADMIN_LLQ_NUM_DESCS_BEFORE_HEADER_2;
1658 if (use_large_llq_hdr &&
1659 (llq->entry_size_ctrl_supported & ENA_ADMIN_LIST_ENTRY_SIZE_256B)) {
1660 llq_config->llq_ring_entry_size =
1661 ENA_ADMIN_LIST_ENTRY_SIZE_256B;
1662 llq_config->llq_ring_entry_size_value = 256;
1664 llq_config->llq_ring_entry_size =
1665 ENA_ADMIN_LIST_ENTRY_SIZE_128B;
1666 llq_config->llq_ring_entry_size_value = 128;
1671 ena_set_queues_placement_policy(struct ena_adapter *adapter,
1672 struct ena_com_dev *ena_dev,
1673 struct ena_admin_feature_llq_desc *llq,
1674 struct ena_llq_configurations *llq_default_configurations)
1677 u32 llq_feature_mask;
1679 llq_feature_mask = 1 << ENA_ADMIN_LLQ;
1680 if (!(ena_dev->supported_features & llq_feature_mask)) {
1682 "LLQ is not supported. Fallback to host mode policy.\n");
1683 ena_dev->tx_mem_queue_type = ENA_ADMIN_PLACEMENT_POLICY_HOST;
1687 rc = ena_com_config_dev_mode(ena_dev, llq, llq_default_configurations);
1689 PMD_INIT_LOG(WARNING, "Failed to config dev mode. "
1690 "Fallback to host mode policy.");
1691 ena_dev->tx_mem_queue_type = ENA_ADMIN_PLACEMENT_POLICY_HOST;
1695 /* Nothing to config, exit */
1696 if (ena_dev->tx_mem_queue_type == ENA_ADMIN_PLACEMENT_POLICY_HOST)
1699 if (!adapter->dev_mem_base) {
1700 PMD_DRV_LOG(ERR, "Unable to access LLQ bar resource. "
1701 "Fallback to host mode policy.\n.");
1702 ena_dev->tx_mem_queue_type = ENA_ADMIN_PLACEMENT_POLICY_HOST;
1706 ena_dev->mem_bar = adapter->dev_mem_base;
1711 static uint32_t ena_calc_max_io_queue_num(struct ena_com_dev *ena_dev,
1712 struct ena_com_dev_get_features_ctx *get_feat_ctx)
1714 uint32_t io_tx_sq_num, io_tx_cq_num, io_rx_num, max_num_io_queues;
1716 /* Regular queues capabilities */
1717 if (ena_dev->supported_features & BIT(ENA_ADMIN_MAX_QUEUES_EXT)) {
1718 struct ena_admin_queue_ext_feature_fields *max_queue_ext =
1719 &get_feat_ctx->max_queue_ext.max_queue_ext;
1720 io_rx_num = RTE_MIN(max_queue_ext->max_rx_sq_num,
1721 max_queue_ext->max_rx_cq_num);
1722 io_tx_sq_num = max_queue_ext->max_tx_sq_num;
1723 io_tx_cq_num = max_queue_ext->max_tx_cq_num;
1725 struct ena_admin_queue_feature_desc *max_queues =
1726 &get_feat_ctx->max_queues;
1727 io_tx_sq_num = max_queues->max_sq_num;
1728 io_tx_cq_num = max_queues->max_cq_num;
1729 io_rx_num = RTE_MIN(io_tx_sq_num, io_tx_cq_num);
1732 /* In case of LLQ use the llq number in the get feature cmd */
1733 if (ena_dev->tx_mem_queue_type == ENA_ADMIN_PLACEMENT_POLICY_DEV)
1734 io_tx_sq_num = get_feat_ctx->llq.max_llq_num;
1736 max_num_io_queues = RTE_MIN(ENA_MAX_NUM_IO_QUEUES, io_rx_num);
1737 max_num_io_queues = RTE_MIN(max_num_io_queues, io_tx_sq_num);
1738 max_num_io_queues = RTE_MIN(max_num_io_queues, io_tx_cq_num);
1740 if (unlikely(max_num_io_queues == 0)) {
1741 PMD_DRV_LOG(ERR, "Number of IO queues should not be 0\n");
1745 return max_num_io_queues;
1748 static int eth_ena_dev_init(struct rte_eth_dev *eth_dev)
1750 struct ena_calc_queue_size_ctx calc_queue_ctx = { 0 };
1751 struct rte_pci_device *pci_dev;
1752 struct rte_intr_handle *intr_handle;
1753 struct ena_adapter *adapter = eth_dev->data->dev_private;
1754 struct ena_com_dev *ena_dev = &adapter->ena_dev;
1755 struct ena_com_dev_get_features_ctx get_feat_ctx;
1756 struct ena_llq_configurations llq_config;
1757 const char *queue_type_str;
1758 uint32_t max_num_io_queues;
1760 static int adapters_found;
1761 bool disable_meta_caching;
1762 bool wd_state = false;
1764 eth_dev->dev_ops = &ena_dev_ops;
1765 eth_dev->rx_pkt_burst = ð_ena_recv_pkts;
1766 eth_dev->tx_pkt_burst = ð_ena_xmit_pkts;
1767 eth_dev->tx_pkt_prepare = ð_ena_prep_pkts;
1769 if (rte_eal_process_type() != RTE_PROC_PRIMARY)
1772 eth_dev->data->dev_flags |= RTE_ETH_DEV_AUTOFILL_QUEUE_XSTATS;
1774 memset(adapter, 0, sizeof(struct ena_adapter));
1775 ena_dev = &adapter->ena_dev;
1777 adapter->rte_eth_dev_data = eth_dev->data;
1778 adapter->rte_dev = eth_dev;
1780 pci_dev = RTE_ETH_DEV_TO_PCI(eth_dev);
1781 adapter->pdev = pci_dev;
1783 PMD_INIT_LOG(INFO, "Initializing %x:%x:%x.%d",
1784 pci_dev->addr.domain,
1786 pci_dev->addr.devid,
1787 pci_dev->addr.function);
1789 intr_handle = &pci_dev->intr_handle;
1791 adapter->regs = pci_dev->mem_resource[ENA_REGS_BAR].addr;
1792 adapter->dev_mem_base = pci_dev->mem_resource[ENA_MEM_BAR].addr;
1794 if (!adapter->regs) {
1795 PMD_INIT_LOG(CRIT, "Failed to access registers BAR(%d)",
1800 ena_dev->reg_bar = adapter->regs;
1801 ena_dev->dmadev = adapter->pdev;
1803 adapter->id_number = adapters_found;
1805 snprintf(adapter->name, ENA_NAME_MAX_LEN, "ena_%d",
1806 adapter->id_number);
1808 rc = ena_parse_devargs(adapter, pci_dev->device.devargs);
1810 PMD_INIT_LOG(CRIT, "Failed to parse devargs\n");
1814 /* device specific initialization routine */
1815 rc = ena_device_init(ena_dev, &get_feat_ctx, &wd_state);
1817 PMD_INIT_LOG(CRIT, "Failed to init ENA device");
1820 adapter->wd_state = wd_state;
1822 set_default_llq_configurations(&llq_config, &get_feat_ctx.llq,
1823 adapter->use_large_llq_hdr);
1824 rc = ena_set_queues_placement_policy(adapter, ena_dev,
1825 &get_feat_ctx.llq, &llq_config);
1827 PMD_INIT_LOG(CRIT, "Failed to set placement policy");
1831 if (ena_dev->tx_mem_queue_type == ENA_ADMIN_PLACEMENT_POLICY_HOST)
1832 queue_type_str = "Regular";
1834 queue_type_str = "Low latency";
1835 PMD_DRV_LOG(INFO, "Placement policy: %s\n", queue_type_str);
1837 calc_queue_ctx.ena_dev = ena_dev;
1838 calc_queue_ctx.get_feat_ctx = &get_feat_ctx;
1840 max_num_io_queues = ena_calc_max_io_queue_num(ena_dev, &get_feat_ctx);
1841 rc = ena_calc_io_queue_size(&calc_queue_ctx,
1842 adapter->use_large_llq_hdr);
1843 if (unlikely((rc != 0) || (max_num_io_queues == 0))) {
1845 goto err_device_destroy;
1848 adapter->max_tx_ring_size = calc_queue_ctx.max_tx_queue_size;
1849 adapter->max_rx_ring_size = calc_queue_ctx.max_rx_queue_size;
1850 adapter->max_tx_sgl_size = calc_queue_ctx.max_tx_sgl_size;
1851 adapter->max_rx_sgl_size = calc_queue_ctx.max_rx_sgl_size;
1852 adapter->max_num_io_queues = max_num_io_queues;
1854 if (ena_dev->tx_mem_queue_type == ENA_ADMIN_PLACEMENT_POLICY_DEV) {
1855 disable_meta_caching =
1856 !!(get_feat_ctx.llq.accel_mode.u.get.supported_flags &
1857 BIT(ENA_ADMIN_DISABLE_META_CACHING));
1859 disable_meta_caching = false;
1862 /* prepare ring structures */
1863 ena_init_rings(adapter, disable_meta_caching);
1865 ena_config_debug_area(adapter);
1867 /* Set max MTU for this device */
1868 adapter->max_mtu = get_feat_ctx.dev_attr.max_mtu;
1870 /* set device support for offloads */
1871 adapter->offloads.tso4_supported = (get_feat_ctx.offload.tx &
1872 ENA_ADMIN_FEATURE_OFFLOAD_DESC_TSO_IPV4_MASK) != 0;
1873 adapter->offloads.tx_csum_supported = (get_feat_ctx.offload.tx &
1874 ENA_ADMIN_FEATURE_OFFLOAD_DESC_TX_L4_IPV4_CSUM_PART_MASK) != 0;
1875 adapter->offloads.rx_csum_supported =
1876 (get_feat_ctx.offload.rx_supported &
1877 ENA_ADMIN_FEATURE_OFFLOAD_DESC_RX_L4_IPV4_CSUM_MASK) != 0;
1879 /* Copy MAC address and point DPDK to it */
1880 eth_dev->data->mac_addrs = (struct rte_ether_addr *)adapter->mac_addr;
1881 rte_ether_addr_copy((struct rte_ether_addr *)
1882 get_feat_ctx.dev_attr.mac_addr,
1883 (struct rte_ether_addr *)adapter->mac_addr);
1885 adapter->drv_stats = rte_zmalloc("adapter stats",
1886 sizeof(*adapter->drv_stats),
1887 RTE_CACHE_LINE_SIZE);
1888 if (!adapter->drv_stats) {
1889 PMD_DRV_LOG(ERR, "failed to alloc mem for adapter stats\n");
1891 goto err_delete_debug_area;
1894 rte_spinlock_init(&adapter->admin_lock);
1896 rte_intr_callback_register(intr_handle,
1897 ena_interrupt_handler_rte,
1899 rte_intr_enable(intr_handle);
1900 ena_com_set_admin_polling_mode(ena_dev, false);
1901 ena_com_admin_aenq_enable(ena_dev);
1903 if (adapters_found == 0)
1904 rte_timer_subsystem_init();
1905 rte_timer_init(&adapter->timer_wd);
1908 adapter->state = ENA_ADAPTER_STATE_INIT;
1912 err_delete_debug_area:
1913 ena_com_delete_debug_area(ena_dev);
1916 ena_com_delete_host_info(ena_dev);
1917 ena_com_admin_destroy(ena_dev);
1923 static void ena_destroy_device(struct rte_eth_dev *eth_dev)
1925 struct ena_adapter *adapter = eth_dev->data->dev_private;
1926 struct ena_com_dev *ena_dev = &adapter->ena_dev;
1928 if (adapter->state == ENA_ADAPTER_STATE_FREE)
1931 ena_com_set_admin_running_state(ena_dev, false);
1933 if (adapter->state != ENA_ADAPTER_STATE_CLOSED)
1936 ena_com_delete_debug_area(ena_dev);
1937 ena_com_delete_host_info(ena_dev);
1939 ena_com_abort_admin_commands(ena_dev);
1940 ena_com_wait_for_abort_completion(ena_dev);
1941 ena_com_admin_destroy(ena_dev);
1942 ena_com_mmio_reg_read_request_destroy(ena_dev);
1944 adapter->state = ENA_ADAPTER_STATE_FREE;
1947 static int eth_ena_dev_uninit(struct rte_eth_dev *eth_dev)
1949 if (rte_eal_process_type() != RTE_PROC_PRIMARY)
1952 ena_destroy_device(eth_dev);
1957 static int ena_dev_configure(struct rte_eth_dev *dev)
1959 struct ena_adapter *adapter = dev->data->dev_private;
1961 adapter->state = ENA_ADAPTER_STATE_CONFIG;
1963 adapter->tx_selected_offloads = dev->data->dev_conf.txmode.offloads;
1964 adapter->rx_selected_offloads = dev->data->dev_conf.rxmode.offloads;
1968 static void ena_init_rings(struct ena_adapter *adapter,
1969 bool disable_meta_caching)
1973 for (i = 0; i < adapter->max_num_io_queues; i++) {
1974 struct ena_ring *ring = &adapter->tx_ring[i];
1976 ring->configured = 0;
1977 ring->type = ENA_RING_TYPE_TX;
1978 ring->adapter = adapter;
1980 ring->tx_mem_queue_type = adapter->ena_dev.tx_mem_queue_type;
1981 ring->tx_max_header_size = adapter->ena_dev.tx_max_header_size;
1982 ring->sgl_size = adapter->max_tx_sgl_size;
1983 ring->disable_meta_caching = disable_meta_caching;
1986 for (i = 0; i < adapter->max_num_io_queues; i++) {
1987 struct ena_ring *ring = &adapter->rx_ring[i];
1989 ring->configured = 0;
1990 ring->type = ENA_RING_TYPE_RX;
1991 ring->adapter = adapter;
1993 ring->sgl_size = adapter->max_rx_sgl_size;
1997 static int ena_infos_get(struct rte_eth_dev *dev,
1998 struct rte_eth_dev_info *dev_info)
2000 struct ena_adapter *adapter;
2001 struct ena_com_dev *ena_dev;
2002 uint64_t rx_feat = 0, tx_feat = 0;
2004 ena_assert_msg(dev->data != NULL, "Uninitialized device\n");
2005 ena_assert_msg(dev->data->dev_private != NULL, "Uninitialized device\n");
2006 adapter = dev->data->dev_private;
2008 ena_dev = &adapter->ena_dev;
2009 ena_assert_msg(ena_dev != NULL, "Uninitialized device\n");
2011 dev_info->speed_capa =
2013 ETH_LINK_SPEED_2_5G |
2015 ETH_LINK_SPEED_10G |
2016 ETH_LINK_SPEED_25G |
2017 ETH_LINK_SPEED_40G |
2018 ETH_LINK_SPEED_50G |
2019 ETH_LINK_SPEED_100G;
2021 /* Set Tx & Rx features available for device */
2022 if (adapter->offloads.tso4_supported)
2023 tx_feat |= DEV_TX_OFFLOAD_TCP_TSO;
2025 if (adapter->offloads.tx_csum_supported)
2026 tx_feat |= DEV_TX_OFFLOAD_IPV4_CKSUM |
2027 DEV_TX_OFFLOAD_UDP_CKSUM |
2028 DEV_TX_OFFLOAD_TCP_CKSUM;
2030 if (adapter->offloads.rx_csum_supported)
2031 rx_feat |= DEV_RX_OFFLOAD_IPV4_CKSUM |
2032 DEV_RX_OFFLOAD_UDP_CKSUM |
2033 DEV_RX_OFFLOAD_TCP_CKSUM;
2035 rx_feat |= DEV_RX_OFFLOAD_JUMBO_FRAME;
2037 /* Inform framework about available features */
2038 dev_info->rx_offload_capa = rx_feat;
2039 dev_info->rx_queue_offload_capa = rx_feat;
2040 dev_info->tx_offload_capa = tx_feat;
2041 dev_info->tx_queue_offload_capa = tx_feat;
2043 dev_info->flow_type_rss_offloads = ETH_RSS_IP | ETH_RSS_TCP |
2046 dev_info->min_rx_bufsize = ENA_MIN_FRAME_LEN;
2047 dev_info->max_rx_pktlen = adapter->max_mtu;
2048 dev_info->max_mac_addrs = 1;
2050 dev_info->max_rx_queues = adapter->max_num_io_queues;
2051 dev_info->max_tx_queues = adapter->max_num_io_queues;
2052 dev_info->reta_size = ENA_RX_RSS_TABLE_SIZE;
2054 adapter->tx_supported_offloads = tx_feat;
2055 adapter->rx_supported_offloads = rx_feat;
2057 dev_info->rx_desc_lim.nb_max = adapter->max_rx_ring_size;
2058 dev_info->rx_desc_lim.nb_min = ENA_MIN_RING_DESC;
2059 dev_info->rx_desc_lim.nb_seg_max = RTE_MIN(ENA_PKT_MAX_BUFS,
2060 adapter->max_rx_sgl_size);
2061 dev_info->rx_desc_lim.nb_mtu_seg_max = RTE_MIN(ENA_PKT_MAX_BUFS,
2062 adapter->max_rx_sgl_size);
2064 dev_info->tx_desc_lim.nb_max = adapter->max_tx_ring_size;
2065 dev_info->tx_desc_lim.nb_min = ENA_MIN_RING_DESC;
2066 dev_info->tx_desc_lim.nb_seg_max = RTE_MIN(ENA_PKT_MAX_BUFS,
2067 adapter->max_tx_sgl_size);
2068 dev_info->tx_desc_lim.nb_mtu_seg_max = RTE_MIN(ENA_PKT_MAX_BUFS,
2069 adapter->max_tx_sgl_size);
2074 static inline void ena_init_rx_mbuf(struct rte_mbuf *mbuf, uint16_t len)
2076 mbuf->data_len = len;
2077 mbuf->data_off = RTE_PKTMBUF_HEADROOM;
2082 static struct rte_mbuf *ena_rx_mbuf(struct ena_ring *rx_ring,
2083 struct ena_com_rx_buf_info *ena_bufs,
2085 uint16_t *next_to_clean,
2088 struct rte_mbuf *mbuf;
2089 struct rte_mbuf *mbuf_head;
2090 struct ena_rx_buffer *rx_info;
2092 uint16_t ntc, len, req_id, buf = 0;
2094 if (unlikely(descs == 0))
2097 ntc = *next_to_clean;
2099 len = ena_bufs[buf].len;
2100 req_id = ena_bufs[buf].req_id;
2102 rx_info = &rx_ring->rx_buffer_info[req_id];
2104 mbuf = rx_info->mbuf;
2105 RTE_ASSERT(mbuf != NULL);
2107 ena_init_rx_mbuf(mbuf, len);
2109 /* Fill the mbuf head with the data specific for 1st segment. */
2111 mbuf_head->nb_segs = descs;
2112 mbuf_head->port = rx_ring->port_id;
2113 mbuf_head->pkt_len = len;
2114 mbuf_head->data_off += offset;
2116 rx_info->mbuf = NULL;
2117 rx_ring->empty_rx_reqs[ntc] = req_id;
2118 ntc = ENA_IDX_NEXT_MASKED(ntc, rx_ring->size_mask);
2122 len = ena_bufs[buf].len;
2123 req_id = ena_bufs[buf].req_id;
2125 rx_info = &rx_ring->rx_buffer_info[req_id];
2126 RTE_ASSERT(rx_info->mbuf != NULL);
2128 if (unlikely(len == 0)) {
2130 * Some devices can pass descriptor with the length 0.
2131 * To avoid confusion, the PMD is simply putting the
2132 * descriptor back, as it was never used. We'll avoid
2133 * mbuf allocation that way.
2135 rc = ena_add_single_rx_desc(rx_ring->ena_com_io_sq,
2136 rx_info->mbuf, req_id);
2137 if (unlikely(rc != 0)) {
2138 /* Free the mbuf in case of an error. */
2139 rte_mbuf_raw_free(rx_info->mbuf);
2142 * If there was no error, just exit the loop as
2143 * 0 length descriptor is always the last one.
2148 /* Create an mbuf chain. */
2149 mbuf->next = rx_info->mbuf;
2152 ena_init_rx_mbuf(mbuf, len);
2153 mbuf_head->pkt_len += len;
2157 * Mark the descriptor as depleted and perform necessary
2159 * This code will execute in two cases:
2160 * 1. Descriptor len was greater than 0 - normal situation.
2161 * 2. Descriptor len was 0 and we failed to add the descriptor
2162 * to the device. In that situation, we should try to add
2163 * the mbuf again in the populate routine and mark the
2164 * descriptor as used up by the device.
2166 rx_info->mbuf = NULL;
2167 rx_ring->empty_rx_reqs[ntc] = req_id;
2168 ntc = ENA_IDX_NEXT_MASKED(ntc, rx_ring->size_mask);
2171 *next_to_clean = ntc;
2176 static uint16_t eth_ena_recv_pkts(void *rx_queue, struct rte_mbuf **rx_pkts,
2179 struct ena_ring *rx_ring = (struct ena_ring *)(rx_queue);
2180 unsigned int free_queue_entries;
2181 unsigned int refill_threshold;
2182 uint16_t next_to_clean = rx_ring->next_to_clean;
2183 uint16_t descs_in_use;
2184 struct rte_mbuf *mbuf;
2186 struct ena_com_rx_ctx ena_rx_ctx;
2189 /* Check adapter state */
2190 if (unlikely(rx_ring->adapter->state != ENA_ADAPTER_STATE_RUNNING)) {
2192 "Trying to receive pkts while device is NOT running\n");
2196 descs_in_use = rx_ring->ring_size -
2197 ena_com_free_q_entries(rx_ring->ena_com_io_sq) - 1;
2198 nb_pkts = RTE_MIN(descs_in_use, nb_pkts);
2200 for (completed = 0; completed < nb_pkts; completed++) {
2201 ena_rx_ctx.max_bufs = rx_ring->sgl_size;
2202 ena_rx_ctx.ena_bufs = rx_ring->ena_bufs;
2203 ena_rx_ctx.descs = 0;
2204 ena_rx_ctx.pkt_offset = 0;
2205 /* receive packet context */
2206 rc = ena_com_rx_pkt(rx_ring->ena_com_io_cq,
2207 rx_ring->ena_com_io_sq,
2210 PMD_DRV_LOG(ERR, "ena_com_rx_pkt error %d\n", rc);
2211 if (rc == ENA_COM_NO_SPACE) {
2212 ++rx_ring->rx_stats.bad_desc_num;
2213 rx_ring->adapter->reset_reason =
2214 ENA_REGS_RESET_TOO_MANY_RX_DESCS;
2216 ++rx_ring->rx_stats.bad_req_id;
2217 rx_ring->adapter->reset_reason =
2218 ENA_REGS_RESET_INV_RX_REQ_ID;
2220 rx_ring->adapter->trigger_reset = true;
2224 mbuf = ena_rx_mbuf(rx_ring,
2225 ena_rx_ctx.ena_bufs,
2228 ena_rx_ctx.pkt_offset);
2229 if (unlikely(mbuf == NULL)) {
2230 for (i = 0; i < ena_rx_ctx.descs; ++i) {
2231 rx_ring->empty_rx_reqs[next_to_clean] =
2232 rx_ring->ena_bufs[i].req_id;
2233 next_to_clean = ENA_IDX_NEXT_MASKED(
2234 next_to_clean, rx_ring->size_mask);
2239 /* fill mbuf attributes if any */
2240 ena_rx_mbuf_prepare(mbuf, &ena_rx_ctx);
2242 if (unlikely(mbuf->ol_flags &
2243 (PKT_RX_IP_CKSUM_BAD | PKT_RX_L4_CKSUM_BAD))) {
2244 rte_atomic64_inc(&rx_ring->adapter->drv_stats->ierrors);
2245 ++rx_ring->rx_stats.bad_csum;
2248 mbuf->hash.rss = ena_rx_ctx.hash;
2250 rx_pkts[completed] = mbuf;
2251 rx_ring->rx_stats.bytes += mbuf->pkt_len;
2254 rx_ring->rx_stats.cnt += completed;
2255 rx_ring->next_to_clean = next_to_clean;
2257 free_queue_entries = ena_com_free_q_entries(rx_ring->ena_com_io_sq);
2259 RTE_MIN(rx_ring->ring_size / ENA_REFILL_THRESH_DIVIDER,
2260 (unsigned int)ENA_REFILL_THRESH_PACKET);
2262 /* Burst refill to save doorbells, memory barriers, const interval */
2263 if (free_queue_entries > refill_threshold) {
2264 ena_com_update_dev_comp_head(rx_ring->ena_com_io_cq);
2265 ena_populate_rx_queue(rx_ring, free_queue_entries);
2272 eth_ena_prep_pkts(void *tx_queue, struct rte_mbuf **tx_pkts,
2278 struct ena_ring *tx_ring = (struct ena_ring *)(tx_queue);
2279 struct rte_ipv4_hdr *ip_hdr;
2281 uint16_t frag_field;
2283 for (i = 0; i != nb_pkts; i++) {
2285 ol_flags = m->ol_flags;
2287 if (!(ol_flags & PKT_TX_IPV4))
2290 /* If there was not L2 header length specified, assume it is
2291 * length of the ethernet header.
2293 if (unlikely(m->l2_len == 0))
2294 m->l2_len = sizeof(struct rte_ether_hdr);
2296 ip_hdr = rte_pktmbuf_mtod_offset(m, struct rte_ipv4_hdr *,
2298 frag_field = rte_be_to_cpu_16(ip_hdr->fragment_offset);
2300 if ((frag_field & RTE_IPV4_HDR_DF_FLAG) != 0) {
2301 m->packet_type |= RTE_PTYPE_L4_NONFRAG;
2303 /* If IPv4 header has DF flag enabled and TSO support is
2304 * disabled, partial chcecksum should not be calculated.
2306 if (!tx_ring->adapter->offloads.tso4_supported)
2310 if ((ol_flags & ENA_TX_OFFLOAD_NOTSUP_MASK) != 0 ||
2311 (ol_flags & PKT_TX_L4_MASK) ==
2312 PKT_TX_SCTP_CKSUM) {
2313 rte_errno = ENOTSUP;
2317 #ifdef RTE_LIBRTE_ETHDEV_DEBUG
2318 ret = rte_validate_tx_offload(m);
2325 /* In case we are supposed to TSO and have DF not set (DF=0)
2326 * hardware must be provided with partial checksum, otherwise
2327 * it will take care of necessary calculations.
2330 ret = rte_net_intel_cksum_flags_prepare(m,
2331 ol_flags & ~PKT_TX_TCP_SEG);
2341 static void ena_update_hints(struct ena_adapter *adapter,
2342 struct ena_admin_ena_hw_hints *hints)
2344 if (hints->admin_completion_tx_timeout)
2345 adapter->ena_dev.admin_queue.completion_timeout =
2346 hints->admin_completion_tx_timeout * 1000;
2348 if (hints->mmio_read_timeout)
2349 /* convert to usec */
2350 adapter->ena_dev.mmio_read.reg_read_to =
2351 hints->mmio_read_timeout * 1000;
2353 if (hints->driver_watchdog_timeout) {
2354 if (hints->driver_watchdog_timeout == ENA_HW_HINTS_NO_TIMEOUT)
2355 adapter->keep_alive_timeout = ENA_HW_HINTS_NO_TIMEOUT;
2357 // Convert msecs to ticks
2358 adapter->keep_alive_timeout =
2359 (hints->driver_watchdog_timeout *
2360 rte_get_timer_hz()) / 1000;
2364 static int ena_check_space_and_linearize_mbuf(struct ena_ring *tx_ring,
2365 struct rte_mbuf *mbuf)
2367 struct ena_com_dev *ena_dev;
2368 int num_segments, header_len, rc;
2370 ena_dev = &tx_ring->adapter->ena_dev;
2371 num_segments = mbuf->nb_segs;
2372 header_len = mbuf->data_len;
2374 if (likely(num_segments < tx_ring->sgl_size))
2377 if (ena_dev->tx_mem_queue_type == ENA_ADMIN_PLACEMENT_POLICY_DEV &&
2378 (num_segments == tx_ring->sgl_size) &&
2379 (header_len < tx_ring->tx_max_header_size))
2382 /* Checking for space for 2 additional metadata descriptors due to
2383 * possible header split and metadata descriptor. Linearization will
2384 * be needed so we reduce the segments number from num_segments to 1
2386 if (!ena_com_sq_have_enough_space(tx_ring->ena_com_io_sq, 3)) {
2387 PMD_DRV_LOG(DEBUG, "Not enough space in the tx queue\n");
2388 return ENA_COM_NO_MEM;
2390 ++tx_ring->tx_stats.linearize;
2391 rc = rte_pktmbuf_linearize(mbuf);
2393 PMD_DRV_LOG(WARNING, "Mbuf linearize failed\n");
2394 rte_atomic64_inc(&tx_ring->adapter->drv_stats->ierrors);
2395 ++tx_ring->tx_stats.linearize_failed;
2402 /* Checking for space for 2 additional metadata descriptors due to
2403 * possible header split and metadata descriptor
2405 if (!ena_com_sq_have_enough_space(tx_ring->ena_com_io_sq,
2406 num_segments + 2)) {
2407 PMD_DRV_LOG(DEBUG, "Not enough space in the tx queue\n");
2408 return ENA_COM_NO_MEM;
2414 static void ena_tx_map_mbuf(struct ena_ring *tx_ring,
2415 struct ena_tx_buffer *tx_info,
2416 struct rte_mbuf *mbuf,
2418 uint16_t *header_len)
2420 struct ena_com_buf *ena_buf;
2421 uint16_t delta, seg_len, push_len;
2424 seg_len = mbuf->data_len;
2426 tx_info->mbuf = mbuf;
2427 ena_buf = tx_info->bufs;
2429 if (tx_ring->tx_mem_queue_type == ENA_ADMIN_PLACEMENT_POLICY_DEV) {
2431 * Tx header might be (and will be in most cases) smaller than
2432 * tx_max_header_size. But it's not an issue to send more data
2433 * to the device, than actually needed if the mbuf size is
2434 * greater than tx_max_header_size.
2436 push_len = RTE_MIN(mbuf->pkt_len, tx_ring->tx_max_header_size);
2437 *header_len = push_len;
2439 if (likely(push_len <= seg_len)) {
2440 /* If the push header is in the single segment, then
2441 * just point it to the 1st mbuf data.
2443 *push_header = rte_pktmbuf_mtod(mbuf, uint8_t *);
2445 /* If the push header lays in the several segments, copy
2446 * it to the intermediate buffer.
2448 rte_pktmbuf_read(mbuf, 0, push_len,
2449 tx_ring->push_buf_intermediate_buf);
2450 *push_header = tx_ring->push_buf_intermediate_buf;
2451 delta = push_len - seg_len;
2454 *push_header = NULL;
2459 /* Process first segment taking into consideration pushed header */
2460 if (seg_len > push_len) {
2461 ena_buf->paddr = mbuf->buf_iova +
2464 ena_buf->len = seg_len - push_len;
2466 tx_info->num_of_bufs++;
2469 while ((mbuf = mbuf->next) != NULL) {
2470 seg_len = mbuf->data_len;
2472 /* Skip mbufs if whole data is pushed as a header */
2473 if (unlikely(delta > seg_len)) {
2478 ena_buf->paddr = mbuf->buf_iova + mbuf->data_off + delta;
2479 ena_buf->len = seg_len - delta;
2481 tx_info->num_of_bufs++;
2487 static int ena_xmit_mbuf(struct ena_ring *tx_ring, struct rte_mbuf *mbuf)
2489 struct ena_tx_buffer *tx_info;
2490 struct ena_com_tx_ctx ena_tx_ctx = { { 0 } };
2491 uint16_t next_to_use;
2492 uint16_t header_len;
2498 rc = ena_check_space_and_linearize_mbuf(tx_ring, mbuf);
2502 next_to_use = tx_ring->next_to_use;
2504 req_id = tx_ring->empty_tx_reqs[next_to_use];
2505 tx_info = &tx_ring->tx_buffer_info[req_id];
2506 tx_info->num_of_bufs = 0;
2508 ena_tx_map_mbuf(tx_ring, tx_info, mbuf, &push_header, &header_len);
2510 ena_tx_ctx.ena_bufs = tx_info->bufs;
2511 ena_tx_ctx.push_header = push_header;
2512 ena_tx_ctx.num_bufs = tx_info->num_of_bufs;
2513 ena_tx_ctx.req_id = req_id;
2514 ena_tx_ctx.header_len = header_len;
2516 /* Set Tx offloads flags, if applicable */
2517 ena_tx_mbuf_prepare(mbuf, &ena_tx_ctx, tx_ring->offloads,
2518 tx_ring->disable_meta_caching);
2520 if (unlikely(ena_com_is_doorbell_needed(tx_ring->ena_com_io_sq,
2523 "llq tx max burst size of queue %d achieved, writing doorbell to send burst\n",
2525 ena_com_write_sq_doorbell(tx_ring->ena_com_io_sq);
2526 tx_ring->tx_stats.doorbells++;
2527 tx_ring->pkts_without_db = false;
2530 /* prepare the packet's descriptors to dma engine */
2531 rc = ena_com_prepare_tx(tx_ring->ena_com_io_sq, &ena_tx_ctx,
2534 ++tx_ring->tx_stats.prepare_ctx_err;
2538 tx_info->tx_descs = nb_hw_desc;
2540 tx_ring->tx_stats.cnt++;
2541 tx_ring->tx_stats.bytes += mbuf->pkt_len;
2543 tx_ring->next_to_use = ENA_IDX_NEXT_MASKED(next_to_use,
2544 tx_ring->size_mask);
2549 static void ena_tx_cleanup(struct ena_ring *tx_ring)
2551 unsigned int cleanup_budget;
2552 unsigned int total_tx_descs = 0;
2553 uint16_t next_to_clean = tx_ring->next_to_clean;
2555 cleanup_budget = RTE_MIN(tx_ring->ring_size / ENA_REFILL_THRESH_DIVIDER,
2556 (unsigned int)ENA_REFILL_THRESH_PACKET);
2558 while (likely(total_tx_descs < cleanup_budget)) {
2559 struct rte_mbuf *mbuf;
2560 struct ena_tx_buffer *tx_info;
2563 if (ena_com_tx_comp_req_id_get(tx_ring->ena_com_io_cq, &req_id) != 0)
2566 if (unlikely(validate_tx_req_id(tx_ring, req_id) != 0))
2569 /* Get Tx info & store how many descs were processed */
2570 tx_info = &tx_ring->tx_buffer_info[req_id];
2572 mbuf = tx_info->mbuf;
2573 rte_pktmbuf_free(mbuf);
2575 tx_info->mbuf = NULL;
2576 tx_ring->empty_tx_reqs[next_to_clean] = req_id;
2578 total_tx_descs += tx_info->tx_descs;
2580 /* Put back descriptor to the ring for reuse */
2581 next_to_clean = ENA_IDX_NEXT_MASKED(next_to_clean,
2582 tx_ring->size_mask);
2585 if (likely(total_tx_descs > 0)) {
2586 /* acknowledge completion of sent packets */
2587 tx_ring->next_to_clean = next_to_clean;
2588 ena_com_comp_ack(tx_ring->ena_com_io_sq, total_tx_descs);
2589 ena_com_update_dev_comp_head(tx_ring->ena_com_io_cq);
2593 static uint16_t eth_ena_xmit_pkts(void *tx_queue, struct rte_mbuf **tx_pkts,
2596 struct ena_ring *tx_ring = (struct ena_ring *)(tx_queue);
2597 uint16_t sent_idx = 0;
2599 /* Check adapter state */
2600 if (unlikely(tx_ring->adapter->state != ENA_ADAPTER_STATE_RUNNING)) {
2602 "Trying to xmit pkts while device is NOT running\n");
2606 for (sent_idx = 0; sent_idx < nb_pkts; sent_idx++) {
2607 if (ena_xmit_mbuf(tx_ring, tx_pkts[sent_idx]))
2609 tx_ring->pkts_without_db = true;
2610 rte_prefetch0(tx_pkts[ENA_IDX_ADD_MASKED(sent_idx, 4,
2611 tx_ring->size_mask)]);
2614 tx_ring->tx_stats.available_desc =
2615 ena_com_free_q_entries(tx_ring->ena_com_io_sq);
2617 /* If there are ready packets to be xmitted... */
2618 if (likely(tx_ring->pkts_without_db)) {
2619 /* ...let HW do its best :-) */
2620 ena_com_write_sq_doorbell(tx_ring->ena_com_io_sq);
2621 tx_ring->tx_stats.doorbells++;
2622 tx_ring->pkts_without_db = false;
2625 ena_tx_cleanup(tx_ring);
2627 tx_ring->tx_stats.available_desc =
2628 ena_com_free_q_entries(tx_ring->ena_com_io_sq);
2629 tx_ring->tx_stats.tx_poll++;
2634 int ena_copy_eni_stats(struct ena_adapter *adapter)
2636 struct ena_admin_eni_stats admin_eni_stats;
2639 rte_spinlock_lock(&adapter->admin_lock);
2640 rc = ena_com_get_eni_stats(&adapter->ena_dev, &admin_eni_stats);
2641 rte_spinlock_unlock(&adapter->admin_lock);
2643 if (rc == ENA_COM_UNSUPPORTED) {
2645 "Retrieving ENI metrics is not supported.\n");
2647 PMD_DRV_LOG(WARNING,
2648 "Failed to get ENI metrics: %d\n", rc);
2653 rte_memcpy(&adapter->eni_stats, &admin_eni_stats,
2654 sizeof(struct ena_stats_eni));
2660 * DPDK callback to retrieve names of extended device statistics
2663 * Pointer to Ethernet device structure.
2664 * @param[out] xstats_names
2665 * Buffer to insert names into.
2670 * Number of xstats names.
2672 static int ena_xstats_get_names(struct rte_eth_dev *dev,
2673 struct rte_eth_xstat_name *xstats_names,
2676 unsigned int xstats_count = ena_xstats_calc_num(dev);
2677 unsigned int stat, i, count = 0;
2679 if (n < xstats_count || !xstats_names)
2680 return xstats_count;
2682 for (stat = 0; stat < ENA_STATS_ARRAY_GLOBAL; stat++, count++)
2683 strcpy(xstats_names[count].name,
2684 ena_stats_global_strings[stat].name);
2686 for (stat = 0; stat < ENA_STATS_ARRAY_ENI; stat++, count++)
2687 strcpy(xstats_names[count].name,
2688 ena_stats_eni_strings[stat].name);
2690 for (stat = 0; stat < ENA_STATS_ARRAY_RX; stat++)
2691 for (i = 0; i < dev->data->nb_rx_queues; i++, count++)
2692 snprintf(xstats_names[count].name,
2693 sizeof(xstats_names[count].name),
2695 ena_stats_rx_strings[stat].name);
2697 for (stat = 0; stat < ENA_STATS_ARRAY_TX; stat++)
2698 for (i = 0; i < dev->data->nb_tx_queues; i++, count++)
2699 snprintf(xstats_names[count].name,
2700 sizeof(xstats_names[count].name),
2702 ena_stats_tx_strings[stat].name);
2704 return xstats_count;
2708 * DPDK callback to get extended device statistics.
2711 * Pointer to Ethernet device structure.
2713 * Stats table output buffer.
2715 * The size of the stats table.
2718 * Number of xstats on success, negative on failure.
2720 static int ena_xstats_get(struct rte_eth_dev *dev,
2721 struct rte_eth_xstat *xstats,
2724 struct ena_adapter *adapter = dev->data->dev_private;
2725 unsigned int xstats_count = ena_xstats_calc_num(dev);
2726 unsigned int stat, i, count = 0;
2730 if (n < xstats_count)
2731 return xstats_count;
2736 for (stat = 0; stat < ENA_STATS_ARRAY_GLOBAL; stat++, count++) {
2737 stat_offset = ena_stats_global_strings[stat].stat_offset;
2738 stats_begin = &adapter->dev_stats;
2740 xstats[count].id = count;
2741 xstats[count].value = *((uint64_t *)
2742 ((char *)stats_begin + stat_offset));
2745 /* Even if the function below fails, we should copy previous (or initial
2746 * values) to keep structure of rte_eth_xstat consistent.
2748 ena_copy_eni_stats(adapter);
2749 for (stat = 0; stat < ENA_STATS_ARRAY_ENI; stat++, count++) {
2750 stat_offset = ena_stats_eni_strings[stat].stat_offset;
2751 stats_begin = &adapter->eni_stats;
2753 xstats[count].id = count;
2754 xstats[count].value = *((uint64_t *)
2755 ((char *)stats_begin + stat_offset));
2758 for (stat = 0; stat < ENA_STATS_ARRAY_RX; stat++) {
2759 for (i = 0; i < dev->data->nb_rx_queues; i++, count++) {
2760 stat_offset = ena_stats_rx_strings[stat].stat_offset;
2761 stats_begin = &adapter->rx_ring[i].rx_stats;
2763 xstats[count].id = count;
2764 xstats[count].value = *((uint64_t *)
2765 ((char *)stats_begin + stat_offset));
2769 for (stat = 0; stat < ENA_STATS_ARRAY_TX; stat++) {
2770 for (i = 0; i < dev->data->nb_tx_queues; i++, count++) {
2771 stat_offset = ena_stats_tx_strings[stat].stat_offset;
2772 stats_begin = &adapter->tx_ring[i].rx_stats;
2774 xstats[count].id = count;
2775 xstats[count].value = *((uint64_t *)
2776 ((char *)stats_begin + stat_offset));
2783 static int ena_xstats_get_by_id(struct rte_eth_dev *dev,
2784 const uint64_t *ids,
2788 struct ena_adapter *adapter = dev->data->dev_private;
2790 uint64_t rx_entries, tx_entries;
2794 bool was_eni_copied = false;
2796 for (i = 0; i < n; ++i) {
2798 /* Check if id belongs to global statistics */
2799 if (id < ENA_STATS_ARRAY_GLOBAL) {
2800 values[i] = *((uint64_t *)&adapter->dev_stats + id);
2805 /* Check if id belongs to ENI statistics */
2806 id -= ENA_STATS_ARRAY_GLOBAL;
2807 if (id < ENA_STATS_ARRAY_ENI) {
2808 /* Avoid reading ENI stats multiple times in a single
2809 * function call, as it requires communication with the
2812 if (!was_eni_copied) {
2813 was_eni_copied = true;
2814 ena_copy_eni_stats(adapter);
2816 values[i] = *((uint64_t *)&adapter->eni_stats + id);
2821 /* Check if id belongs to rx queue statistics */
2822 id -= ENA_STATS_ARRAY_ENI;
2823 rx_entries = ENA_STATS_ARRAY_RX * dev->data->nb_rx_queues;
2824 if (id < rx_entries) {
2825 qid = id % dev->data->nb_rx_queues;
2826 id /= dev->data->nb_rx_queues;
2827 values[i] = *((uint64_t *)
2828 &adapter->rx_ring[qid].rx_stats + id);
2832 /* Check if id belongs to rx queue statistics */
2834 tx_entries = ENA_STATS_ARRAY_TX * dev->data->nb_tx_queues;
2835 if (id < tx_entries) {
2836 qid = id % dev->data->nb_tx_queues;
2837 id /= dev->data->nb_tx_queues;
2838 values[i] = *((uint64_t *)
2839 &adapter->tx_ring[qid].tx_stats + id);
2848 static int ena_process_bool_devarg(const char *key,
2852 struct ena_adapter *adapter = opaque;
2855 /* Parse the value. */
2856 if (strcmp(value, "1") == 0) {
2858 } else if (strcmp(value, "0") == 0) {
2862 "Invalid value: '%s' for key '%s'. Accepted: '0' or '1'\n",
2867 /* Now, assign it to the proper adapter field. */
2868 if (strcmp(key, ENA_DEVARG_LARGE_LLQ_HDR) == 0)
2869 adapter->use_large_llq_hdr = bool_value;
2874 static int ena_parse_devargs(struct ena_adapter *adapter,
2875 struct rte_devargs *devargs)
2877 static const char * const allowed_args[] = {
2878 ENA_DEVARG_LARGE_LLQ_HDR,
2880 struct rte_kvargs *kvlist;
2883 if (devargs == NULL)
2886 kvlist = rte_kvargs_parse(devargs->args, allowed_args);
2887 if (kvlist == NULL) {
2888 PMD_INIT_LOG(ERR, "Invalid device arguments: %s\n",
2893 rc = rte_kvargs_process(kvlist, ENA_DEVARG_LARGE_LLQ_HDR,
2894 ena_process_bool_devarg, adapter);
2896 rte_kvargs_free(kvlist);
2901 /*********************************************************************
2903 *********************************************************************/
2904 static int eth_ena_pci_probe(struct rte_pci_driver *pci_drv __rte_unused,
2905 struct rte_pci_device *pci_dev)
2907 return rte_eth_dev_pci_generic_probe(pci_dev,
2908 sizeof(struct ena_adapter), eth_ena_dev_init);
2911 static int eth_ena_pci_remove(struct rte_pci_device *pci_dev)
2913 return rte_eth_dev_pci_generic_remove(pci_dev, eth_ena_dev_uninit);
2916 static struct rte_pci_driver rte_ena_pmd = {
2917 .id_table = pci_id_ena_map,
2918 .drv_flags = RTE_PCI_DRV_NEED_MAPPING | RTE_PCI_DRV_INTR_LSC |
2919 RTE_PCI_DRV_WC_ACTIVATE,
2920 .probe = eth_ena_pci_probe,
2921 .remove = eth_ena_pci_remove,
2924 RTE_PMD_REGISTER_PCI(net_ena, rte_ena_pmd);
2925 RTE_PMD_REGISTER_PCI_TABLE(net_ena, pci_id_ena_map);
2926 RTE_PMD_REGISTER_KMOD_DEP(net_ena, "* igb_uio | uio_pci_generic | vfio-pci");
2927 RTE_PMD_REGISTER_PARAM_STRING(net_ena, ENA_DEVARG_LARGE_LLQ_HDR "=<0|1>");
2928 RTE_LOG_REGISTER_SUFFIX(ena_logtype_init, init, NOTICE);
2929 RTE_LOG_REGISTER_SUFFIX(ena_logtype_driver, driver, NOTICE);
2930 #ifdef RTE_LIBRTE_ENA_DEBUG_RX
2931 RTE_LOG_REGISTER_SUFFIX(ena_logtype_rx, rx, NOTICE);
2933 #ifdef RTE_LIBRTE_ENA_DEBUG_TX
2934 RTE_LOG_REGISTER_SUFFIX(ena_logtype_tx, tx, NOTICE);
2936 #ifdef RTE_LIBRTE_ENA_DEBUG_TX_FREE
2937 RTE_LOG_REGISTER_SUFFIX(ena_logtype_tx_free, tx_free, NOTICE);
2939 #ifdef RTE_LIBRTE_ENA_COM_DEBUG
2940 RTE_LOG_REGISTER_SUFFIX(ena_logtype_com, com, NOTICE);
2943 /******************************************************************************
2944 ******************************** AENQ Handlers *******************************
2945 *****************************************************************************/
2946 static void ena_update_on_link_change(void *adapter_data,
2947 struct ena_admin_aenq_entry *aenq_e)
2949 struct rte_eth_dev *eth_dev;
2950 struct ena_adapter *adapter;
2951 struct ena_admin_aenq_link_change_desc *aenq_link_desc;
2954 adapter = adapter_data;
2955 aenq_link_desc = (struct ena_admin_aenq_link_change_desc *)aenq_e;
2956 eth_dev = adapter->rte_dev;
2958 status = get_ena_admin_aenq_link_change_desc_link_status(aenq_link_desc);
2959 adapter->link_status = status;
2961 ena_link_update(eth_dev, 0);
2962 rte_eth_dev_callback_process(eth_dev, RTE_ETH_EVENT_INTR_LSC, NULL);
2965 static void ena_notification(void *data,
2966 struct ena_admin_aenq_entry *aenq_e)
2968 struct ena_adapter *adapter = data;
2969 struct ena_admin_ena_hw_hints *hints;
2971 if (aenq_e->aenq_common_desc.group != ENA_ADMIN_NOTIFICATION)
2972 PMD_DRV_LOG(WARNING, "Invalid group(%x) expected %x\n",
2973 aenq_e->aenq_common_desc.group,
2974 ENA_ADMIN_NOTIFICATION);
2976 switch (aenq_e->aenq_common_desc.syndrome) {
2977 case ENA_ADMIN_UPDATE_HINTS:
2978 hints = (struct ena_admin_ena_hw_hints *)
2979 (&aenq_e->inline_data_w4);
2980 ena_update_hints(adapter, hints);
2983 PMD_DRV_LOG(ERR, "Invalid aenq notification link state %d\n",
2984 aenq_e->aenq_common_desc.syndrome);
2988 static void ena_keep_alive(void *adapter_data,
2989 __rte_unused struct ena_admin_aenq_entry *aenq_e)
2991 struct ena_adapter *adapter = adapter_data;
2992 struct ena_admin_aenq_keep_alive_desc *desc;
2996 adapter->timestamp_wd = rte_get_timer_cycles();
2998 desc = (struct ena_admin_aenq_keep_alive_desc *)aenq_e;
2999 rx_drops = ((uint64_t)desc->rx_drops_high << 32) | desc->rx_drops_low;
3000 tx_drops = ((uint64_t)desc->tx_drops_high << 32) | desc->tx_drops_low;
3002 adapter->drv_stats->rx_drops = rx_drops;
3003 adapter->dev_stats.tx_drops = tx_drops;
3007 * This handler will called for unknown event group or unimplemented handlers
3009 static void unimplemented_aenq_handler(__rte_unused void *data,
3010 __rte_unused struct ena_admin_aenq_entry *aenq_e)
3012 PMD_DRV_LOG(ERR, "Unknown event was received or event with "
3013 "unimplemented handler\n");
3016 static struct ena_aenq_handlers aenq_handlers = {
3018 [ENA_ADMIN_LINK_CHANGE] = ena_update_on_link_change,
3019 [ENA_ADMIN_NOTIFICATION] = ena_notification,
3020 [ENA_ADMIN_KEEP_ALIVE] = ena_keep_alive
3022 .unimplemented_handler = unimplemented_aenq_handler