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 3
31 #define DRV_MODULE_VER_SUBMINOR 0
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 #define ENA_PTYPE_HAS_HASH (RTE_PTYPE_L4_TCP | RTE_PTYPE_L4_UDP)
56 enum ethtool_stringset {
62 char name[ETH_GSTRING_LEN];
66 #define ENA_STAT_ENTRY(stat, stat_type) { \
68 .stat_offset = offsetof(struct ena_stats_##stat_type, stat) \
71 #define ENA_STAT_RX_ENTRY(stat) \
72 ENA_STAT_ENTRY(stat, rx)
74 #define ENA_STAT_TX_ENTRY(stat) \
75 ENA_STAT_ENTRY(stat, tx)
77 #define ENA_STAT_ENI_ENTRY(stat) \
78 ENA_STAT_ENTRY(stat, eni)
80 #define ENA_STAT_GLOBAL_ENTRY(stat) \
81 ENA_STAT_ENTRY(stat, dev)
83 /* Device arguments */
84 #define ENA_DEVARG_LARGE_LLQ_HDR "large_llq_hdr"
87 * Each rte_memzone should have unique name.
88 * To satisfy it, count number of allocation and add it to name.
90 rte_atomic64_t ena_alloc_cnt;
92 static const struct ena_stats ena_stats_global_strings[] = {
93 ENA_STAT_GLOBAL_ENTRY(wd_expired),
94 ENA_STAT_GLOBAL_ENTRY(dev_start),
95 ENA_STAT_GLOBAL_ENTRY(dev_stop),
96 ENA_STAT_GLOBAL_ENTRY(tx_drops),
99 static const struct ena_stats ena_stats_eni_strings[] = {
100 ENA_STAT_ENI_ENTRY(bw_in_allowance_exceeded),
101 ENA_STAT_ENI_ENTRY(bw_out_allowance_exceeded),
102 ENA_STAT_ENI_ENTRY(pps_allowance_exceeded),
103 ENA_STAT_ENI_ENTRY(conntrack_allowance_exceeded),
104 ENA_STAT_ENI_ENTRY(linklocal_allowance_exceeded),
107 static const struct ena_stats ena_stats_tx_strings[] = {
108 ENA_STAT_TX_ENTRY(cnt),
109 ENA_STAT_TX_ENTRY(bytes),
110 ENA_STAT_TX_ENTRY(prepare_ctx_err),
111 ENA_STAT_TX_ENTRY(linearize),
112 ENA_STAT_TX_ENTRY(linearize_failed),
113 ENA_STAT_TX_ENTRY(tx_poll),
114 ENA_STAT_TX_ENTRY(doorbells),
115 ENA_STAT_TX_ENTRY(bad_req_id),
116 ENA_STAT_TX_ENTRY(available_desc),
119 static const struct ena_stats ena_stats_rx_strings[] = {
120 ENA_STAT_RX_ENTRY(cnt),
121 ENA_STAT_RX_ENTRY(bytes),
122 ENA_STAT_RX_ENTRY(refill_partial),
123 ENA_STAT_RX_ENTRY(bad_csum),
124 ENA_STAT_RX_ENTRY(mbuf_alloc_fail),
125 ENA_STAT_RX_ENTRY(bad_desc_num),
126 ENA_STAT_RX_ENTRY(bad_req_id),
129 #define ENA_STATS_ARRAY_GLOBAL ARRAY_SIZE(ena_stats_global_strings)
130 #define ENA_STATS_ARRAY_ENI ARRAY_SIZE(ena_stats_eni_strings)
131 #define ENA_STATS_ARRAY_TX ARRAY_SIZE(ena_stats_tx_strings)
132 #define ENA_STATS_ARRAY_RX ARRAY_SIZE(ena_stats_rx_strings)
134 #define QUEUE_OFFLOADS (DEV_TX_OFFLOAD_TCP_CKSUM |\
135 DEV_TX_OFFLOAD_UDP_CKSUM |\
136 DEV_TX_OFFLOAD_IPV4_CKSUM |\
137 DEV_TX_OFFLOAD_TCP_TSO)
138 #define MBUF_OFFLOADS (PKT_TX_L4_MASK |\
142 /** Vendor ID used by Amazon devices */
143 #define PCI_VENDOR_ID_AMAZON 0x1D0F
144 /** Amazon devices */
145 #define PCI_DEVICE_ID_ENA_VF 0xEC20
146 #define PCI_DEVICE_ID_ENA_VF_RSERV0 0xEC21
148 #define ENA_TX_OFFLOAD_MASK (\
155 #define ENA_TX_OFFLOAD_NOTSUP_MASK \
156 (PKT_TX_OFFLOAD_MASK ^ ENA_TX_OFFLOAD_MASK)
158 static const struct rte_pci_id pci_id_ena_map[] = {
159 { RTE_PCI_DEVICE(PCI_VENDOR_ID_AMAZON, PCI_DEVICE_ID_ENA_VF) },
160 { RTE_PCI_DEVICE(PCI_VENDOR_ID_AMAZON, PCI_DEVICE_ID_ENA_VF_RSERV0) },
164 static struct ena_aenq_handlers aenq_handlers;
166 static int ena_device_init(struct ena_com_dev *ena_dev,
167 struct rte_pci_device *pdev,
168 struct ena_com_dev_get_features_ctx *get_feat_ctx,
170 static int ena_dev_configure(struct rte_eth_dev *dev);
171 static void ena_tx_map_mbuf(struct ena_ring *tx_ring,
172 struct ena_tx_buffer *tx_info,
173 struct rte_mbuf *mbuf,
175 uint16_t *header_len);
176 static int ena_xmit_mbuf(struct ena_ring *tx_ring, struct rte_mbuf *mbuf);
177 static void ena_tx_cleanup(struct ena_ring *tx_ring);
178 static uint16_t eth_ena_xmit_pkts(void *tx_queue, struct rte_mbuf **tx_pkts,
180 static uint16_t eth_ena_prep_pkts(void *tx_queue, struct rte_mbuf **tx_pkts,
182 static int ena_tx_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_txconf *tx_conf);
185 static int ena_rx_queue_setup(struct rte_eth_dev *dev, uint16_t queue_idx,
186 uint16_t nb_desc, unsigned int socket_id,
187 const struct rte_eth_rxconf *rx_conf,
188 struct rte_mempool *mp);
189 static inline void ena_init_rx_mbuf(struct rte_mbuf *mbuf, uint16_t len);
190 static struct rte_mbuf *ena_rx_mbuf(struct ena_ring *rx_ring,
191 struct ena_com_rx_buf_info *ena_bufs,
193 uint16_t *next_to_clean,
195 static uint16_t eth_ena_recv_pkts(void *rx_queue,
196 struct rte_mbuf **rx_pkts, uint16_t nb_pkts);
197 static int ena_add_single_rx_desc(struct ena_com_io_sq *io_sq,
198 struct rte_mbuf *mbuf, uint16_t id);
199 static int ena_populate_rx_queue(struct ena_ring *rxq, unsigned int count);
200 static void ena_init_rings(struct ena_adapter *adapter,
201 bool disable_meta_caching);
202 static int ena_mtu_set(struct rte_eth_dev *dev, uint16_t mtu);
203 static int ena_start(struct rte_eth_dev *dev);
204 static int ena_stop(struct rte_eth_dev *dev);
205 static int ena_close(struct rte_eth_dev *dev);
206 static int ena_dev_reset(struct rte_eth_dev *dev);
207 static int ena_stats_get(struct rte_eth_dev *dev, struct rte_eth_stats *stats);
208 static void ena_rx_queue_release_all(struct rte_eth_dev *dev);
209 static void ena_tx_queue_release_all(struct rte_eth_dev *dev);
210 static void ena_rx_queue_release(void *queue);
211 static void ena_tx_queue_release(void *queue);
212 static void ena_rx_queue_release_bufs(struct ena_ring *ring);
213 static void ena_tx_queue_release_bufs(struct ena_ring *ring);
214 static int ena_link_update(struct rte_eth_dev *dev,
215 int wait_to_complete);
216 static int ena_create_io_queue(struct ena_ring *ring);
217 static void ena_queue_stop(struct ena_ring *ring);
218 static void ena_queue_stop_all(struct rte_eth_dev *dev,
219 enum ena_ring_type ring_type);
220 static int ena_queue_start(struct ena_ring *ring);
221 static int ena_queue_start_all(struct rte_eth_dev *dev,
222 enum ena_ring_type ring_type);
223 static void ena_stats_restart(struct rte_eth_dev *dev);
224 static int ena_infos_get(struct rte_eth_dev *dev,
225 struct rte_eth_dev_info *dev_info);
226 static int ena_rss_reta_update(struct rte_eth_dev *dev,
227 struct rte_eth_rss_reta_entry64 *reta_conf,
229 static int ena_rss_reta_query(struct rte_eth_dev *dev,
230 struct rte_eth_rss_reta_entry64 *reta_conf,
232 static void ena_interrupt_handler_rte(void *cb_arg);
233 static void ena_timer_wd_callback(struct rte_timer *timer, void *arg);
234 static void ena_destroy_device(struct rte_eth_dev *eth_dev);
235 static int eth_ena_dev_init(struct rte_eth_dev *eth_dev);
236 static int ena_xstats_get_names(struct rte_eth_dev *dev,
237 struct rte_eth_xstat_name *xstats_names,
239 static int ena_xstats_get(struct rte_eth_dev *dev,
240 struct rte_eth_xstat *stats,
242 static int ena_xstats_get_by_id(struct rte_eth_dev *dev,
246 static int ena_process_bool_devarg(const char *key,
249 static int ena_parse_devargs(struct ena_adapter *adapter,
250 struct rte_devargs *devargs);
251 static int ena_copy_eni_stats(struct ena_adapter *adapter);
253 static const struct eth_dev_ops ena_dev_ops = {
254 .dev_configure = ena_dev_configure,
255 .dev_infos_get = ena_infos_get,
256 .rx_queue_setup = ena_rx_queue_setup,
257 .tx_queue_setup = ena_tx_queue_setup,
258 .dev_start = ena_start,
259 .dev_stop = ena_stop,
260 .link_update = ena_link_update,
261 .stats_get = ena_stats_get,
262 .xstats_get_names = ena_xstats_get_names,
263 .xstats_get = ena_xstats_get,
264 .xstats_get_by_id = ena_xstats_get_by_id,
265 .mtu_set = ena_mtu_set,
266 .rx_queue_release = ena_rx_queue_release,
267 .tx_queue_release = ena_tx_queue_release,
268 .dev_close = ena_close,
269 .dev_reset = ena_dev_reset,
270 .reta_update = ena_rss_reta_update,
271 .reta_query = ena_rss_reta_query,
274 void ena_rss_key_fill(void *key, size_t size)
276 static bool key_generated;
277 static uint8_t default_key[ENA_HASH_KEY_SIZE];
280 RTE_ASSERT(size <= ENA_HASH_KEY_SIZE);
282 if (!key_generated) {
283 for (i = 0; i < ENA_HASH_KEY_SIZE; ++i)
284 default_key[i] = rte_rand() & 0xff;
285 key_generated = true;
288 rte_memcpy(key, default_key, size);
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 if (unlikely(ena_rx_ctx->l3_csum_err))
305 ol_flags |= PKT_RX_IP_CKSUM_BAD;
307 ol_flags |= PKT_RX_IP_CKSUM_GOOD;
308 } else if (ena_rx_ctx->l3_proto == ENA_ETH_IO_L3_PROTO_IPV6) {
309 packet_type |= RTE_PTYPE_L3_IPV6;
312 if (!ena_rx_ctx->l4_csum_checked || ena_rx_ctx->frag)
313 ol_flags |= PKT_RX_L4_CKSUM_UNKNOWN;
315 if (unlikely(ena_rx_ctx->l4_csum_err))
316 ol_flags |= PKT_RX_L4_CKSUM_BAD;
318 ol_flags |= PKT_RX_L4_CKSUM_GOOD;
320 if (likely((packet_type & ENA_PTYPE_HAS_HASH) && !ena_rx_ctx->frag)) {
321 ol_flags |= PKT_RX_RSS_HASH;
322 mbuf->hash.rss = ena_rx_ctx->hash;
325 mbuf->ol_flags = ol_flags;
326 mbuf->packet_type = packet_type;
329 static inline void ena_tx_mbuf_prepare(struct rte_mbuf *mbuf,
330 struct ena_com_tx_ctx *ena_tx_ctx,
331 uint64_t queue_offloads,
332 bool disable_meta_caching)
334 struct ena_com_tx_meta *ena_meta = &ena_tx_ctx->ena_meta;
336 if ((mbuf->ol_flags & MBUF_OFFLOADS) &&
337 (queue_offloads & QUEUE_OFFLOADS)) {
338 /* check if TSO is required */
339 if ((mbuf->ol_flags & PKT_TX_TCP_SEG) &&
340 (queue_offloads & DEV_TX_OFFLOAD_TCP_TSO)) {
341 ena_tx_ctx->tso_enable = true;
343 ena_meta->l4_hdr_len = GET_L4_HDR_LEN(mbuf);
346 /* check if L3 checksum is needed */
347 if ((mbuf->ol_flags & PKT_TX_IP_CKSUM) &&
348 (queue_offloads & DEV_TX_OFFLOAD_IPV4_CKSUM))
349 ena_tx_ctx->l3_csum_enable = true;
351 if (mbuf->ol_flags & PKT_TX_IPV6) {
352 ena_tx_ctx->l3_proto = ENA_ETH_IO_L3_PROTO_IPV6;
354 ena_tx_ctx->l3_proto = ENA_ETH_IO_L3_PROTO_IPV4;
356 /* set don't fragment (DF) flag */
357 if (mbuf->packet_type &
358 (RTE_PTYPE_L4_NONFRAG
359 | RTE_PTYPE_INNER_L4_NONFRAG))
360 ena_tx_ctx->df = true;
363 /* check if L4 checksum is needed */
364 if (((mbuf->ol_flags & PKT_TX_L4_MASK) == PKT_TX_TCP_CKSUM) &&
365 (queue_offloads & DEV_TX_OFFLOAD_TCP_CKSUM)) {
366 ena_tx_ctx->l4_proto = ENA_ETH_IO_L4_PROTO_TCP;
367 ena_tx_ctx->l4_csum_enable = true;
368 } else if (((mbuf->ol_flags & PKT_TX_L4_MASK) ==
370 (queue_offloads & DEV_TX_OFFLOAD_UDP_CKSUM)) {
371 ena_tx_ctx->l4_proto = ENA_ETH_IO_L4_PROTO_UDP;
372 ena_tx_ctx->l4_csum_enable = true;
374 ena_tx_ctx->l4_proto = ENA_ETH_IO_L4_PROTO_UNKNOWN;
375 ena_tx_ctx->l4_csum_enable = false;
378 ena_meta->mss = mbuf->tso_segsz;
379 ena_meta->l3_hdr_len = mbuf->l3_len;
380 ena_meta->l3_hdr_offset = mbuf->l2_len;
382 ena_tx_ctx->meta_valid = true;
383 } else if (disable_meta_caching) {
384 memset(ena_meta, 0, sizeof(*ena_meta));
385 ena_tx_ctx->meta_valid = true;
387 ena_tx_ctx->meta_valid = false;
391 static int validate_tx_req_id(struct ena_ring *tx_ring, u16 req_id)
393 struct ena_tx_buffer *tx_info = NULL;
395 if (likely(req_id < tx_ring->ring_size)) {
396 tx_info = &tx_ring->tx_buffer_info[req_id];
397 if (likely(tx_info->mbuf))
402 PMD_DRV_LOG(ERR, "tx_info doesn't have valid mbuf\n");
404 PMD_DRV_LOG(ERR, "Invalid req_id: %hu\n", req_id);
406 /* Trigger device reset */
407 ++tx_ring->tx_stats.bad_req_id;
408 tx_ring->adapter->reset_reason = ENA_REGS_RESET_INV_TX_REQ_ID;
409 tx_ring->adapter->trigger_reset = true;
413 static void ena_config_host_info(struct ena_com_dev *ena_dev)
415 struct ena_admin_host_info *host_info;
418 /* Allocate only the host info */
419 rc = ena_com_allocate_host_info(ena_dev);
421 PMD_DRV_LOG(ERR, "Cannot allocate host info\n");
425 host_info = ena_dev->host_attr.host_info;
427 host_info->os_type = ENA_ADMIN_OS_DPDK;
428 host_info->kernel_ver = RTE_VERSION;
429 strlcpy((char *)host_info->kernel_ver_str, rte_version(),
430 sizeof(host_info->kernel_ver_str));
431 host_info->os_dist = RTE_VERSION;
432 strlcpy((char *)host_info->os_dist_str, rte_version(),
433 sizeof(host_info->os_dist_str));
434 host_info->driver_version =
435 (DRV_MODULE_VER_MAJOR) |
436 (DRV_MODULE_VER_MINOR << ENA_ADMIN_HOST_INFO_MINOR_SHIFT) |
437 (DRV_MODULE_VER_SUBMINOR <<
438 ENA_ADMIN_HOST_INFO_SUB_MINOR_SHIFT);
439 host_info->num_cpus = rte_lcore_count();
441 host_info->driver_supported_features =
442 ENA_ADMIN_HOST_INFO_RX_OFFSET_MASK;
444 rc = ena_com_set_host_attributes(ena_dev);
446 if (rc == -ENA_COM_UNSUPPORTED)
447 PMD_DRV_LOG(WARNING, "Cannot set host attributes\n");
449 PMD_DRV_LOG(ERR, "Cannot set host attributes\n");
457 ena_com_delete_host_info(ena_dev);
460 /* This function calculates the number of xstats based on the current config */
461 static unsigned int ena_xstats_calc_num(struct rte_eth_dev_data *data)
463 return ENA_STATS_ARRAY_GLOBAL + ENA_STATS_ARRAY_ENI +
464 (data->nb_tx_queues * ENA_STATS_ARRAY_TX) +
465 (data->nb_rx_queues * ENA_STATS_ARRAY_RX);
468 static void ena_config_debug_area(struct ena_adapter *adapter)
473 ss_count = ena_xstats_calc_num(adapter->edev_data);
475 /* allocate 32 bytes for each string and 64bit for the value */
476 debug_area_size = ss_count * ETH_GSTRING_LEN + sizeof(u64) * ss_count;
478 rc = ena_com_allocate_debug_area(&adapter->ena_dev, debug_area_size);
480 PMD_DRV_LOG(ERR, "Cannot allocate debug area\n");
484 rc = ena_com_set_host_attributes(&adapter->ena_dev);
486 if (rc == -ENA_COM_UNSUPPORTED)
487 PMD_DRV_LOG(WARNING, "Cannot set host attributes\n");
489 PMD_DRV_LOG(ERR, "Cannot set host attributes\n");
496 ena_com_delete_debug_area(&adapter->ena_dev);
499 static int ena_close(struct rte_eth_dev *dev)
501 struct rte_pci_device *pci_dev = RTE_ETH_DEV_TO_PCI(dev);
502 struct rte_intr_handle *intr_handle = &pci_dev->intr_handle;
503 struct ena_adapter *adapter = dev->data->dev_private;
506 if (rte_eal_process_type() != RTE_PROC_PRIMARY)
509 if (adapter->state == ENA_ADAPTER_STATE_RUNNING)
511 adapter->state = ENA_ADAPTER_STATE_CLOSED;
513 ena_rx_queue_release_all(dev);
514 ena_tx_queue_release_all(dev);
516 rte_free(adapter->drv_stats);
517 adapter->drv_stats = NULL;
519 rte_intr_disable(intr_handle);
520 rte_intr_callback_unregister(intr_handle,
521 ena_interrupt_handler_rte,
525 * MAC is not allocated dynamically. Setting NULL should prevent from
526 * release of the resource in the rte_eth_dev_release_port().
528 dev->data->mac_addrs = NULL;
534 ena_dev_reset(struct rte_eth_dev *dev)
538 /* Cannot release memory in secondary process */
539 if (rte_eal_process_type() != RTE_PROC_PRIMARY) {
540 PMD_DRV_LOG(WARNING, "dev_reset not supported in secondary.\n");
544 ena_destroy_device(dev);
545 rc = eth_ena_dev_init(dev);
547 PMD_INIT_LOG(CRIT, "Cannot initialize device\n");
552 static int ena_rss_reta_update(struct rte_eth_dev *dev,
553 struct rte_eth_rss_reta_entry64 *reta_conf,
556 struct ena_adapter *adapter = dev->data->dev_private;
557 struct ena_com_dev *ena_dev = &adapter->ena_dev;
563 if ((reta_size == 0) || (reta_conf == NULL))
566 if (reta_size > ENA_RX_RSS_TABLE_SIZE) {
568 "Requested indirection table size (%d) is bigger than supported: %d\n",
569 reta_size, ENA_RX_RSS_TABLE_SIZE);
573 for (i = 0 ; i < reta_size ; i++) {
574 /* each reta_conf is for 64 entries.
575 * to support 128 we use 2 conf of 64
577 conf_idx = i / RTE_RETA_GROUP_SIZE;
578 idx = i % RTE_RETA_GROUP_SIZE;
579 if (TEST_BIT(reta_conf[conf_idx].mask, idx)) {
581 ENA_IO_RXQ_IDX(reta_conf[conf_idx].reta[idx]);
583 rc = ena_com_indirect_table_fill_entry(ena_dev,
586 if (unlikely(rc && rc != ENA_COM_UNSUPPORTED)) {
588 "Cannot fill indirect table\n");
594 rte_spinlock_lock(&adapter->admin_lock);
595 rc = ena_com_indirect_table_set(ena_dev);
596 rte_spinlock_unlock(&adapter->admin_lock);
597 if (unlikely(rc && rc != ENA_COM_UNSUPPORTED)) {
598 PMD_DRV_LOG(ERR, "Cannot flush the indirect table\n");
602 PMD_DRV_LOG(DEBUG, "RSS configured %d entries for port %d\n",
603 reta_size, dev->data->port_id);
608 /* Query redirection table. */
609 static int ena_rss_reta_query(struct rte_eth_dev *dev,
610 struct rte_eth_rss_reta_entry64 *reta_conf,
613 struct ena_adapter *adapter = dev->data->dev_private;
614 struct ena_com_dev *ena_dev = &adapter->ena_dev;
617 u32 indirect_table[ENA_RX_RSS_TABLE_SIZE] = {0};
621 if (reta_size == 0 || reta_conf == NULL ||
622 (reta_size > RTE_RETA_GROUP_SIZE && ((reta_conf + 1) == NULL)))
625 rte_spinlock_lock(&adapter->admin_lock);
626 rc = ena_com_indirect_table_get(ena_dev, indirect_table);
627 rte_spinlock_unlock(&adapter->admin_lock);
628 if (unlikely(rc && rc != ENA_COM_UNSUPPORTED)) {
629 PMD_DRV_LOG(ERR, "Cannot get indirection table\n");
633 for (i = 0 ; i < reta_size ; i++) {
634 reta_conf_idx = i / RTE_RETA_GROUP_SIZE;
635 reta_idx = i % RTE_RETA_GROUP_SIZE;
636 if (TEST_BIT(reta_conf[reta_conf_idx].mask, reta_idx))
637 reta_conf[reta_conf_idx].reta[reta_idx] =
638 ENA_IO_RXQ_IDX_REV(indirect_table[i]);
644 static int ena_rss_init_default(struct ena_adapter *adapter)
646 struct ena_com_dev *ena_dev = &adapter->ena_dev;
647 uint16_t nb_rx_queues = adapter->edev_data->nb_rx_queues;
651 rc = ena_com_rss_init(ena_dev, ENA_RX_RSS_TABLE_LOG_SIZE);
653 PMD_DRV_LOG(ERR, "Cannot init indirection table\n");
657 for (i = 0; i < ENA_RX_RSS_TABLE_SIZE; i++) {
658 val = i % nb_rx_queues;
659 rc = ena_com_indirect_table_fill_entry(ena_dev, i,
660 ENA_IO_RXQ_IDX(val));
661 if (unlikely(rc && (rc != ENA_COM_UNSUPPORTED))) {
662 PMD_DRV_LOG(ERR, "Cannot fill indirection table\n");
667 rc = ena_com_fill_hash_function(ena_dev, ENA_ADMIN_CRC32, NULL,
668 ENA_HASH_KEY_SIZE, 0xFFFFFFFF);
669 if (unlikely(rc && (rc != ENA_COM_UNSUPPORTED))) {
670 PMD_DRV_LOG(INFO, "Cannot fill hash function\n");
674 rc = ena_com_set_default_hash_ctrl(ena_dev);
675 if (unlikely(rc && (rc != ENA_COM_UNSUPPORTED))) {
676 PMD_DRV_LOG(INFO, "Cannot fill hash control\n");
680 rc = ena_com_indirect_table_set(ena_dev);
681 if (unlikely(rc && (rc != ENA_COM_UNSUPPORTED))) {
682 PMD_DRV_LOG(ERR, "Cannot flush indirection table\n");
685 PMD_DRV_LOG(DEBUG, "RSS configured for port %d\n",
686 adapter->edev_data->port_id);
691 ena_com_rss_destroy(ena_dev);
697 static void ena_rx_queue_release_all(struct rte_eth_dev *dev)
699 struct ena_ring **queues = (struct ena_ring **)dev->data->rx_queues;
700 int nb_queues = dev->data->nb_rx_queues;
703 for (i = 0; i < nb_queues; i++)
704 ena_rx_queue_release(queues[i]);
707 static void ena_tx_queue_release_all(struct rte_eth_dev *dev)
709 struct ena_ring **queues = (struct ena_ring **)dev->data->tx_queues;
710 int nb_queues = dev->data->nb_tx_queues;
713 for (i = 0; i < nb_queues; i++)
714 ena_tx_queue_release(queues[i]);
717 static void ena_rx_queue_release(void *queue)
719 struct ena_ring *ring = (struct ena_ring *)queue;
721 /* Free ring resources */
722 if (ring->rx_buffer_info)
723 rte_free(ring->rx_buffer_info);
724 ring->rx_buffer_info = NULL;
726 if (ring->rx_refill_buffer)
727 rte_free(ring->rx_refill_buffer);
728 ring->rx_refill_buffer = NULL;
730 if (ring->empty_rx_reqs)
731 rte_free(ring->empty_rx_reqs);
732 ring->empty_rx_reqs = NULL;
734 ring->configured = 0;
736 PMD_DRV_LOG(NOTICE, "Rx queue %d:%d released\n",
737 ring->port_id, ring->id);
740 static void ena_tx_queue_release(void *queue)
742 struct ena_ring *ring = (struct ena_ring *)queue;
744 /* Free ring resources */
745 if (ring->push_buf_intermediate_buf)
746 rte_free(ring->push_buf_intermediate_buf);
748 if (ring->tx_buffer_info)
749 rte_free(ring->tx_buffer_info);
751 if (ring->empty_tx_reqs)
752 rte_free(ring->empty_tx_reqs);
754 ring->empty_tx_reqs = NULL;
755 ring->tx_buffer_info = NULL;
756 ring->push_buf_intermediate_buf = NULL;
758 ring->configured = 0;
760 PMD_DRV_LOG(NOTICE, "Tx queue %d:%d released\n",
761 ring->port_id, ring->id);
764 static void ena_rx_queue_release_bufs(struct ena_ring *ring)
768 for (i = 0; i < ring->ring_size; ++i) {
769 struct ena_rx_buffer *rx_info = &ring->rx_buffer_info[i];
771 rte_mbuf_raw_free(rx_info->mbuf);
772 rx_info->mbuf = NULL;
777 static void ena_tx_queue_release_bufs(struct ena_ring *ring)
781 for (i = 0; i < ring->ring_size; ++i) {
782 struct ena_tx_buffer *tx_buf = &ring->tx_buffer_info[i];
785 rte_pktmbuf_free(tx_buf->mbuf);
791 static int ena_link_update(struct rte_eth_dev *dev,
792 __rte_unused int wait_to_complete)
794 struct rte_eth_link *link = &dev->data->dev_link;
795 struct ena_adapter *adapter = dev->data->dev_private;
797 link->link_status = adapter->link_status ? ETH_LINK_UP : ETH_LINK_DOWN;
798 link->link_speed = ETH_SPEED_NUM_NONE;
799 link->link_duplex = ETH_LINK_FULL_DUPLEX;
804 static int ena_queue_start_all(struct rte_eth_dev *dev,
805 enum ena_ring_type ring_type)
807 struct ena_adapter *adapter = dev->data->dev_private;
808 struct ena_ring *queues = NULL;
813 if (ring_type == ENA_RING_TYPE_RX) {
814 queues = adapter->rx_ring;
815 nb_queues = dev->data->nb_rx_queues;
817 queues = adapter->tx_ring;
818 nb_queues = dev->data->nb_tx_queues;
820 for (i = 0; i < nb_queues; i++) {
821 if (queues[i].configured) {
822 if (ring_type == ENA_RING_TYPE_RX) {
824 dev->data->rx_queues[i] == &queues[i],
825 "Inconsistent state of Rx queues\n");
828 dev->data->tx_queues[i] == &queues[i],
829 "Inconsistent state of Tx queues\n");
832 rc = ena_queue_start(&queues[i]);
836 "Failed to start queue[%d] of type(%d)\n",
847 if (queues[i].configured)
848 ena_queue_stop(&queues[i]);
853 static uint32_t ena_get_mtu_conf(struct ena_adapter *adapter)
855 uint32_t max_frame_len = adapter->max_mtu;
857 if (adapter->edev_data->dev_conf.rxmode.offloads &
858 DEV_RX_OFFLOAD_JUMBO_FRAME)
860 adapter->edev_data->dev_conf.rxmode.max_rx_pkt_len;
862 return max_frame_len;
865 static int ena_check_valid_conf(struct ena_adapter *adapter)
867 uint32_t max_frame_len = ena_get_mtu_conf(adapter);
869 if (max_frame_len > adapter->max_mtu || max_frame_len < ENA_MIN_MTU) {
871 "Unsupported MTU of %d. Max MTU: %d, min MTU: %d\n",
872 max_frame_len, adapter->max_mtu, ENA_MIN_MTU);
873 return ENA_COM_UNSUPPORTED;
880 ena_calc_io_queue_size(struct ena_calc_queue_size_ctx *ctx,
881 bool use_large_llq_hdr)
883 struct ena_admin_feature_llq_desc *llq = &ctx->get_feat_ctx->llq;
884 struct ena_com_dev *ena_dev = ctx->ena_dev;
885 uint32_t max_tx_queue_size;
886 uint32_t max_rx_queue_size;
888 if (ena_dev->supported_features & BIT(ENA_ADMIN_MAX_QUEUES_EXT)) {
889 struct ena_admin_queue_ext_feature_fields *max_queue_ext =
890 &ctx->get_feat_ctx->max_queue_ext.max_queue_ext;
891 max_rx_queue_size = RTE_MIN(max_queue_ext->max_rx_cq_depth,
892 max_queue_ext->max_rx_sq_depth);
893 max_tx_queue_size = max_queue_ext->max_tx_cq_depth;
895 if (ena_dev->tx_mem_queue_type ==
896 ENA_ADMIN_PLACEMENT_POLICY_DEV) {
897 max_tx_queue_size = RTE_MIN(max_tx_queue_size,
900 max_tx_queue_size = RTE_MIN(max_tx_queue_size,
901 max_queue_ext->max_tx_sq_depth);
904 ctx->max_rx_sgl_size = RTE_MIN(ENA_PKT_MAX_BUFS,
905 max_queue_ext->max_per_packet_rx_descs);
906 ctx->max_tx_sgl_size = RTE_MIN(ENA_PKT_MAX_BUFS,
907 max_queue_ext->max_per_packet_tx_descs);
909 struct ena_admin_queue_feature_desc *max_queues =
910 &ctx->get_feat_ctx->max_queues;
911 max_rx_queue_size = RTE_MIN(max_queues->max_cq_depth,
912 max_queues->max_sq_depth);
913 max_tx_queue_size = max_queues->max_cq_depth;
915 if (ena_dev->tx_mem_queue_type ==
916 ENA_ADMIN_PLACEMENT_POLICY_DEV) {
917 max_tx_queue_size = RTE_MIN(max_tx_queue_size,
920 max_tx_queue_size = RTE_MIN(max_tx_queue_size,
921 max_queues->max_sq_depth);
924 ctx->max_rx_sgl_size = RTE_MIN(ENA_PKT_MAX_BUFS,
925 max_queues->max_packet_rx_descs);
926 ctx->max_tx_sgl_size = RTE_MIN(ENA_PKT_MAX_BUFS,
927 max_queues->max_packet_tx_descs);
930 /* Round down to the nearest power of 2 */
931 max_rx_queue_size = rte_align32prevpow2(max_rx_queue_size);
932 max_tx_queue_size = rte_align32prevpow2(max_tx_queue_size);
934 if (use_large_llq_hdr) {
935 if ((llq->entry_size_ctrl_supported &
936 ENA_ADMIN_LIST_ENTRY_SIZE_256B) &&
937 (ena_dev->tx_mem_queue_type ==
938 ENA_ADMIN_PLACEMENT_POLICY_DEV)) {
939 max_tx_queue_size /= 2;
941 "Forcing large headers and decreasing maximum Tx queue size to %d\n",
945 "Forcing large headers failed: LLQ is disabled or device does not support large headers\n");
949 if (unlikely(max_rx_queue_size == 0 || max_tx_queue_size == 0)) {
950 PMD_INIT_LOG(ERR, "Invalid queue size\n");
954 ctx->max_tx_queue_size = max_tx_queue_size;
955 ctx->max_rx_queue_size = max_rx_queue_size;
960 static void ena_stats_restart(struct rte_eth_dev *dev)
962 struct ena_adapter *adapter = dev->data->dev_private;
964 rte_atomic64_init(&adapter->drv_stats->ierrors);
965 rte_atomic64_init(&adapter->drv_stats->oerrors);
966 rte_atomic64_init(&adapter->drv_stats->rx_nombuf);
967 adapter->drv_stats->rx_drops = 0;
970 static int ena_stats_get(struct rte_eth_dev *dev,
971 struct rte_eth_stats *stats)
973 struct ena_admin_basic_stats ena_stats;
974 struct ena_adapter *adapter = dev->data->dev_private;
975 struct ena_com_dev *ena_dev = &adapter->ena_dev;
980 if (rte_eal_process_type() != RTE_PROC_PRIMARY)
983 memset(&ena_stats, 0, sizeof(ena_stats));
985 rte_spinlock_lock(&adapter->admin_lock);
986 rc = ena_com_get_dev_basic_stats(ena_dev, &ena_stats);
987 rte_spinlock_unlock(&adapter->admin_lock);
989 PMD_DRV_LOG(ERR, "Could not retrieve statistics from ENA\n");
993 /* Set of basic statistics from ENA */
994 stats->ipackets = __MERGE_64B_H_L(ena_stats.rx_pkts_high,
995 ena_stats.rx_pkts_low);
996 stats->opackets = __MERGE_64B_H_L(ena_stats.tx_pkts_high,
997 ena_stats.tx_pkts_low);
998 stats->ibytes = __MERGE_64B_H_L(ena_stats.rx_bytes_high,
999 ena_stats.rx_bytes_low);
1000 stats->obytes = __MERGE_64B_H_L(ena_stats.tx_bytes_high,
1001 ena_stats.tx_bytes_low);
1003 /* Driver related stats */
1004 stats->imissed = adapter->drv_stats->rx_drops;
1005 stats->ierrors = rte_atomic64_read(&adapter->drv_stats->ierrors);
1006 stats->oerrors = rte_atomic64_read(&adapter->drv_stats->oerrors);
1007 stats->rx_nombuf = rte_atomic64_read(&adapter->drv_stats->rx_nombuf);
1009 max_rings_stats = RTE_MIN(dev->data->nb_rx_queues,
1010 RTE_ETHDEV_QUEUE_STAT_CNTRS);
1011 for (i = 0; i < max_rings_stats; ++i) {
1012 struct ena_stats_rx *rx_stats = &adapter->rx_ring[i].rx_stats;
1014 stats->q_ibytes[i] = rx_stats->bytes;
1015 stats->q_ipackets[i] = rx_stats->cnt;
1016 stats->q_errors[i] = rx_stats->bad_desc_num +
1017 rx_stats->bad_req_id;
1020 max_rings_stats = RTE_MIN(dev->data->nb_tx_queues,
1021 RTE_ETHDEV_QUEUE_STAT_CNTRS);
1022 for (i = 0; i < max_rings_stats; ++i) {
1023 struct ena_stats_tx *tx_stats = &adapter->tx_ring[i].tx_stats;
1025 stats->q_obytes[i] = tx_stats->bytes;
1026 stats->q_opackets[i] = tx_stats->cnt;
1032 static int ena_mtu_set(struct rte_eth_dev *dev, uint16_t mtu)
1034 struct ena_adapter *adapter;
1035 struct ena_com_dev *ena_dev;
1038 ena_assert_msg(dev->data != NULL, "Uninitialized device\n");
1039 ena_assert_msg(dev->data->dev_private != NULL, "Uninitialized device\n");
1040 adapter = dev->data->dev_private;
1042 ena_dev = &adapter->ena_dev;
1043 ena_assert_msg(ena_dev != NULL, "Uninitialized device\n");
1045 if (mtu > ena_get_mtu_conf(adapter) || mtu < ENA_MIN_MTU) {
1047 "Invalid MTU setting. New MTU: %d, max MTU: %d, min MTU: %d\n",
1048 mtu, ena_get_mtu_conf(adapter), ENA_MIN_MTU);
1052 rc = ena_com_set_dev_mtu(ena_dev, mtu);
1054 PMD_DRV_LOG(ERR, "Could not set MTU: %d\n", mtu);
1056 PMD_DRV_LOG(NOTICE, "MTU set to: %d\n", mtu);
1061 static int ena_start(struct rte_eth_dev *dev)
1063 struct ena_adapter *adapter = dev->data->dev_private;
1067 /* Cannot allocate memory in secondary process */
1068 if (rte_eal_process_type() != RTE_PROC_PRIMARY) {
1069 PMD_DRV_LOG(WARNING, "dev_start not supported in secondary.\n");
1073 rc = ena_check_valid_conf(adapter);
1077 rc = ena_queue_start_all(dev, ENA_RING_TYPE_RX);
1081 rc = ena_queue_start_all(dev, ENA_RING_TYPE_TX);
1085 if (adapter->edev_data->dev_conf.rxmode.mq_mode &
1086 ETH_MQ_RX_RSS_FLAG && adapter->edev_data->nb_rx_queues > 0) {
1087 rc = ena_rss_init_default(adapter);
1092 ena_stats_restart(dev);
1094 adapter->timestamp_wd = rte_get_timer_cycles();
1095 adapter->keep_alive_timeout = ENA_DEVICE_KALIVE_TIMEOUT;
1097 ticks = rte_get_timer_hz();
1098 rte_timer_reset(&adapter->timer_wd, ticks, PERIODICAL, rte_lcore_id(),
1099 ena_timer_wd_callback, dev);
1101 ++adapter->dev_stats.dev_start;
1102 adapter->state = ENA_ADAPTER_STATE_RUNNING;
1107 ena_queue_stop_all(dev, ENA_RING_TYPE_TX);
1109 ena_queue_stop_all(dev, ENA_RING_TYPE_RX);
1113 static int ena_stop(struct rte_eth_dev *dev)
1115 struct ena_adapter *adapter = dev->data->dev_private;
1116 struct ena_com_dev *ena_dev = &adapter->ena_dev;
1119 /* Cannot free memory in secondary process */
1120 if (rte_eal_process_type() != RTE_PROC_PRIMARY) {
1121 PMD_DRV_LOG(WARNING, "dev_stop not supported in secondary.\n");
1125 rte_timer_stop_sync(&adapter->timer_wd);
1126 ena_queue_stop_all(dev, ENA_RING_TYPE_TX);
1127 ena_queue_stop_all(dev, ENA_RING_TYPE_RX);
1129 if (adapter->trigger_reset) {
1130 rc = ena_com_dev_reset(ena_dev, adapter->reset_reason);
1132 PMD_DRV_LOG(ERR, "Device reset failed, rc: %d\n", rc);
1135 ++adapter->dev_stats.dev_stop;
1136 adapter->state = ENA_ADAPTER_STATE_STOPPED;
1137 dev->data->dev_started = 0;
1142 static int ena_create_io_queue(struct ena_ring *ring)
1144 struct ena_adapter *adapter;
1145 struct ena_com_dev *ena_dev;
1146 struct ena_com_create_io_ctx ctx =
1147 /* policy set to _HOST just to satisfy icc compiler */
1148 { ENA_ADMIN_PLACEMENT_POLICY_HOST,
1154 adapter = ring->adapter;
1155 ena_dev = &adapter->ena_dev;
1157 if (ring->type == ENA_RING_TYPE_TX) {
1158 ena_qid = ENA_IO_TXQ_IDX(ring->id);
1159 ctx.direction = ENA_COM_IO_QUEUE_DIRECTION_TX;
1160 ctx.mem_queue_type = ena_dev->tx_mem_queue_type;
1161 for (i = 0; i < ring->ring_size; i++)
1162 ring->empty_tx_reqs[i] = i;
1164 ena_qid = ENA_IO_RXQ_IDX(ring->id);
1165 ctx.direction = ENA_COM_IO_QUEUE_DIRECTION_RX;
1166 for (i = 0; i < ring->ring_size; i++)
1167 ring->empty_rx_reqs[i] = i;
1169 ctx.queue_size = ring->ring_size;
1171 ctx.msix_vector = -1; /* interrupts not used */
1172 ctx.numa_node = ring->numa_socket_id;
1174 rc = ena_com_create_io_queue(ena_dev, &ctx);
1177 "Failed to create IO queue[%d] (qid:%d), rc: %d\n",
1178 ring->id, ena_qid, rc);
1182 rc = ena_com_get_io_handlers(ena_dev, ena_qid,
1183 &ring->ena_com_io_sq,
1184 &ring->ena_com_io_cq);
1187 "Failed to get IO queue[%d] handlers, rc: %d\n",
1189 ena_com_destroy_io_queue(ena_dev, ena_qid);
1193 if (ring->type == ENA_RING_TYPE_TX)
1194 ena_com_update_numa_node(ring->ena_com_io_cq, ctx.numa_node);
1199 static void ena_queue_stop(struct ena_ring *ring)
1201 struct ena_com_dev *ena_dev = &ring->adapter->ena_dev;
1203 if (ring->type == ENA_RING_TYPE_RX) {
1204 ena_com_destroy_io_queue(ena_dev, ENA_IO_RXQ_IDX(ring->id));
1205 ena_rx_queue_release_bufs(ring);
1207 ena_com_destroy_io_queue(ena_dev, ENA_IO_TXQ_IDX(ring->id));
1208 ena_tx_queue_release_bufs(ring);
1212 static void ena_queue_stop_all(struct rte_eth_dev *dev,
1213 enum ena_ring_type ring_type)
1215 struct ena_adapter *adapter = dev->data->dev_private;
1216 struct ena_ring *queues = NULL;
1217 uint16_t nb_queues, i;
1219 if (ring_type == ENA_RING_TYPE_RX) {
1220 queues = adapter->rx_ring;
1221 nb_queues = dev->data->nb_rx_queues;
1223 queues = adapter->tx_ring;
1224 nb_queues = dev->data->nb_tx_queues;
1227 for (i = 0; i < nb_queues; ++i)
1228 if (queues[i].configured)
1229 ena_queue_stop(&queues[i]);
1232 static int ena_queue_start(struct ena_ring *ring)
1236 ena_assert_msg(ring->configured == 1,
1237 "Trying to start unconfigured queue\n");
1239 rc = ena_create_io_queue(ring);
1241 PMD_INIT_LOG(ERR, "Failed to create IO queue\n");
1245 ring->next_to_clean = 0;
1246 ring->next_to_use = 0;
1248 if (ring->type == ENA_RING_TYPE_TX) {
1249 ring->tx_stats.available_desc =
1250 ena_com_free_q_entries(ring->ena_com_io_sq);
1254 bufs_num = ring->ring_size - 1;
1255 rc = ena_populate_rx_queue(ring, bufs_num);
1256 if (rc != bufs_num) {
1257 ena_com_destroy_io_queue(&ring->adapter->ena_dev,
1258 ENA_IO_RXQ_IDX(ring->id));
1259 PMD_INIT_LOG(ERR, "Failed to populate Rx ring\n");
1260 return ENA_COM_FAULT;
1262 /* Flush per-core RX buffers pools cache as they can be used on other
1265 rte_mempool_cache_flush(NULL, ring->mb_pool);
1270 static int ena_tx_queue_setup(struct rte_eth_dev *dev,
1273 unsigned int socket_id,
1274 const struct rte_eth_txconf *tx_conf)
1276 struct ena_ring *txq = NULL;
1277 struct ena_adapter *adapter = dev->data->dev_private;
1280 txq = &adapter->tx_ring[queue_idx];
1282 if (txq->configured) {
1284 "API violation. Queue[%d] is already configured\n",
1286 return ENA_COM_FAULT;
1289 if (!rte_is_power_of_2(nb_desc)) {
1291 "Unsupported size of Tx queue: %d is not a power of 2.\n",
1296 if (nb_desc > adapter->max_tx_ring_size) {
1298 "Unsupported size of Tx queue (max size: %d)\n",
1299 adapter->max_tx_ring_size);
1303 txq->port_id = dev->data->port_id;
1304 txq->next_to_clean = 0;
1305 txq->next_to_use = 0;
1306 txq->ring_size = nb_desc;
1307 txq->size_mask = nb_desc - 1;
1308 txq->numa_socket_id = socket_id;
1309 txq->pkts_without_db = false;
1311 txq->tx_buffer_info = rte_zmalloc("txq->tx_buffer_info",
1312 sizeof(struct ena_tx_buffer) *
1314 RTE_CACHE_LINE_SIZE);
1315 if (!txq->tx_buffer_info) {
1317 "Failed to allocate memory for Tx buffer info\n");
1321 txq->empty_tx_reqs = rte_zmalloc("txq->empty_tx_reqs",
1322 sizeof(u16) * txq->ring_size,
1323 RTE_CACHE_LINE_SIZE);
1324 if (!txq->empty_tx_reqs) {
1326 "Failed to allocate memory for empty Tx requests\n");
1327 rte_free(txq->tx_buffer_info);
1331 txq->push_buf_intermediate_buf =
1332 rte_zmalloc("txq->push_buf_intermediate_buf",
1333 txq->tx_max_header_size,
1334 RTE_CACHE_LINE_SIZE);
1335 if (!txq->push_buf_intermediate_buf) {
1336 PMD_DRV_LOG(ERR, "Failed to alloc push buffer for LLQ\n");
1337 rte_free(txq->tx_buffer_info);
1338 rte_free(txq->empty_tx_reqs);
1342 for (i = 0; i < txq->ring_size; i++)
1343 txq->empty_tx_reqs[i] = i;
1345 if (tx_conf != NULL) {
1347 tx_conf->offloads | dev->data->dev_conf.txmode.offloads;
1349 /* Store pointer to this queue in upper layer */
1350 txq->configured = 1;
1351 dev->data->tx_queues[queue_idx] = txq;
1356 static int ena_rx_queue_setup(struct rte_eth_dev *dev,
1359 unsigned int socket_id,
1360 __rte_unused const struct rte_eth_rxconf *rx_conf,
1361 struct rte_mempool *mp)
1363 struct ena_adapter *adapter = dev->data->dev_private;
1364 struct ena_ring *rxq = NULL;
1368 rxq = &adapter->rx_ring[queue_idx];
1369 if (rxq->configured) {
1371 "API violation. Queue[%d] is already configured\n",
1373 return ENA_COM_FAULT;
1376 if (!rte_is_power_of_2(nb_desc)) {
1378 "Unsupported size of Rx queue: %d is not a power of 2.\n",
1383 if (nb_desc > adapter->max_rx_ring_size) {
1385 "Unsupported size of Rx queue (max size: %d)\n",
1386 adapter->max_rx_ring_size);
1390 /* ENA isn't supporting buffers smaller than 1400 bytes */
1391 buffer_size = rte_pktmbuf_data_room_size(mp) - RTE_PKTMBUF_HEADROOM;
1392 if (buffer_size < ENA_RX_BUF_MIN_SIZE) {
1394 "Unsupported size of Rx buffer: %zu (min size: %d)\n",
1395 buffer_size, ENA_RX_BUF_MIN_SIZE);
1399 rxq->port_id = dev->data->port_id;
1400 rxq->next_to_clean = 0;
1401 rxq->next_to_use = 0;
1402 rxq->ring_size = nb_desc;
1403 rxq->size_mask = nb_desc - 1;
1404 rxq->numa_socket_id = socket_id;
1407 rxq->rx_buffer_info = rte_zmalloc("rxq->buffer_info",
1408 sizeof(struct ena_rx_buffer) * nb_desc,
1409 RTE_CACHE_LINE_SIZE);
1410 if (!rxq->rx_buffer_info) {
1412 "Failed to allocate memory for Rx buffer info\n");
1416 rxq->rx_refill_buffer = rte_zmalloc("rxq->rx_refill_buffer",
1417 sizeof(struct rte_mbuf *) * nb_desc,
1418 RTE_CACHE_LINE_SIZE);
1420 if (!rxq->rx_refill_buffer) {
1422 "Failed to allocate memory for Rx refill buffer\n");
1423 rte_free(rxq->rx_buffer_info);
1424 rxq->rx_buffer_info = NULL;
1428 rxq->empty_rx_reqs = rte_zmalloc("rxq->empty_rx_reqs",
1429 sizeof(uint16_t) * nb_desc,
1430 RTE_CACHE_LINE_SIZE);
1431 if (!rxq->empty_rx_reqs) {
1433 "Failed to allocate memory for empty Rx requests\n");
1434 rte_free(rxq->rx_buffer_info);
1435 rxq->rx_buffer_info = NULL;
1436 rte_free(rxq->rx_refill_buffer);
1437 rxq->rx_refill_buffer = NULL;
1441 for (i = 0; i < nb_desc; i++)
1442 rxq->empty_rx_reqs[i] = i;
1444 /* Store pointer to this queue in upper layer */
1445 rxq->configured = 1;
1446 dev->data->rx_queues[queue_idx] = rxq;
1451 static int ena_add_single_rx_desc(struct ena_com_io_sq *io_sq,
1452 struct rte_mbuf *mbuf, uint16_t id)
1454 struct ena_com_buf ebuf;
1457 /* prepare physical address for DMA transaction */
1458 ebuf.paddr = mbuf->buf_iova + RTE_PKTMBUF_HEADROOM;
1459 ebuf.len = mbuf->buf_len - RTE_PKTMBUF_HEADROOM;
1461 /* pass resource to device */
1462 rc = ena_com_add_single_rx_desc(io_sq, &ebuf, id);
1463 if (unlikely(rc != 0))
1464 PMD_DRV_LOG(WARNING, "Failed adding Rx desc\n");
1469 static int ena_populate_rx_queue(struct ena_ring *rxq, unsigned int count)
1473 uint16_t next_to_use = rxq->next_to_use;
1474 uint16_t in_use, req_id;
1475 struct rte_mbuf **mbufs = rxq->rx_refill_buffer;
1477 if (unlikely(!count))
1480 in_use = rxq->ring_size - 1 -
1481 ena_com_free_q_entries(rxq->ena_com_io_sq);
1482 ena_assert_msg(((in_use + count) < rxq->ring_size),
1483 "bad ring state\n");
1485 /* get resources for incoming packets */
1486 rc = rte_pktmbuf_alloc_bulk(rxq->mb_pool, mbufs, count);
1487 if (unlikely(rc < 0)) {
1488 rte_atomic64_inc(&rxq->adapter->drv_stats->rx_nombuf);
1489 ++rxq->rx_stats.mbuf_alloc_fail;
1490 PMD_RX_LOG(DEBUG, "There are not enough free buffers\n");
1494 for (i = 0; i < count; i++) {
1495 struct rte_mbuf *mbuf = mbufs[i];
1496 struct ena_rx_buffer *rx_info;
1498 if (likely((i + 4) < count))
1499 rte_prefetch0(mbufs[i + 4]);
1501 req_id = rxq->empty_rx_reqs[next_to_use];
1502 rx_info = &rxq->rx_buffer_info[req_id];
1504 rc = ena_add_single_rx_desc(rxq->ena_com_io_sq, mbuf, req_id);
1505 if (unlikely(rc != 0))
1508 rx_info->mbuf = mbuf;
1509 next_to_use = ENA_IDX_NEXT_MASKED(next_to_use, rxq->size_mask);
1512 if (unlikely(i < count)) {
1513 PMD_DRV_LOG(WARNING,
1514 "Refilled Rx queue[%d] with only %d/%d buffers\n",
1516 rte_pktmbuf_free_bulk(&mbufs[i], count - i);
1517 ++rxq->rx_stats.refill_partial;
1520 /* When we submitted free recources to device... */
1521 if (likely(i > 0)) {
1522 /* ...let HW know that it can fill buffers with data. */
1523 ena_com_write_sq_doorbell(rxq->ena_com_io_sq);
1525 rxq->next_to_use = next_to_use;
1531 static int ena_device_init(struct ena_com_dev *ena_dev,
1532 struct rte_pci_device *pdev,
1533 struct ena_com_dev_get_features_ctx *get_feat_ctx,
1536 uint32_t aenq_groups;
1538 bool readless_supported;
1540 /* Initialize mmio registers */
1541 rc = ena_com_mmio_reg_read_request_init(ena_dev);
1543 PMD_DRV_LOG(ERR, "Failed to init MMIO read less\n");
1547 /* The PCIe configuration space revision id indicate if mmio reg
1550 readless_supported = !(pdev->id.class_id & ENA_MMIO_DISABLE_REG_READ);
1551 ena_com_set_mmio_read_mode(ena_dev, readless_supported);
1554 rc = ena_com_dev_reset(ena_dev, ENA_REGS_RESET_NORMAL);
1556 PMD_DRV_LOG(ERR, "Cannot reset device\n");
1557 goto err_mmio_read_less;
1560 /* check FW version */
1561 rc = ena_com_validate_version(ena_dev);
1563 PMD_DRV_LOG(ERR, "Device version is too low\n");
1564 goto err_mmio_read_less;
1567 ena_dev->dma_addr_bits = ena_com_get_dma_width(ena_dev);
1569 /* ENA device administration layer init */
1570 rc = ena_com_admin_init(ena_dev, &aenq_handlers);
1573 "Cannot initialize ENA admin queue\n");
1574 goto err_mmio_read_less;
1577 /* To enable the msix interrupts the driver needs to know the number
1578 * of queues. So the driver uses polling mode to retrieve this
1581 ena_com_set_admin_polling_mode(ena_dev, true);
1583 ena_config_host_info(ena_dev);
1585 /* Get Device Attributes and features */
1586 rc = ena_com_get_dev_attr_feat(ena_dev, get_feat_ctx);
1589 "Cannot get attribute for ENA device, rc: %d\n", rc);
1590 goto err_admin_init;
1593 aenq_groups = BIT(ENA_ADMIN_LINK_CHANGE) |
1594 BIT(ENA_ADMIN_NOTIFICATION) |
1595 BIT(ENA_ADMIN_KEEP_ALIVE) |
1596 BIT(ENA_ADMIN_FATAL_ERROR) |
1597 BIT(ENA_ADMIN_WARNING);
1599 aenq_groups &= get_feat_ctx->aenq.supported_groups;
1600 rc = ena_com_set_aenq_config(ena_dev, aenq_groups);
1602 PMD_DRV_LOG(ERR, "Cannot configure AENQ groups, rc: %d\n", rc);
1603 goto err_admin_init;
1606 *wd_state = !!(aenq_groups & BIT(ENA_ADMIN_KEEP_ALIVE));
1611 ena_com_admin_destroy(ena_dev);
1614 ena_com_mmio_reg_read_request_destroy(ena_dev);
1619 static void ena_interrupt_handler_rte(void *cb_arg)
1621 struct rte_eth_dev *dev = cb_arg;
1622 struct ena_adapter *adapter = dev->data->dev_private;
1623 struct ena_com_dev *ena_dev = &adapter->ena_dev;
1625 ena_com_admin_q_comp_intr_handler(ena_dev);
1626 if (likely(adapter->state != ENA_ADAPTER_STATE_CLOSED))
1627 ena_com_aenq_intr_handler(ena_dev, dev);
1630 static void check_for_missing_keep_alive(struct ena_adapter *adapter)
1632 if (!adapter->wd_state)
1635 if (adapter->keep_alive_timeout == ENA_HW_HINTS_NO_TIMEOUT)
1638 if (unlikely((rte_get_timer_cycles() - adapter->timestamp_wd) >=
1639 adapter->keep_alive_timeout)) {
1640 PMD_DRV_LOG(ERR, "Keep alive timeout\n");
1641 adapter->reset_reason = ENA_REGS_RESET_KEEP_ALIVE_TO;
1642 adapter->trigger_reset = true;
1643 ++adapter->dev_stats.wd_expired;
1647 /* Check if admin queue is enabled */
1648 static void check_for_admin_com_state(struct ena_adapter *adapter)
1650 if (unlikely(!ena_com_get_admin_running_state(&adapter->ena_dev))) {
1651 PMD_DRV_LOG(ERR, "ENA admin queue is not in running state\n");
1652 adapter->reset_reason = ENA_REGS_RESET_ADMIN_TO;
1653 adapter->trigger_reset = true;
1657 static void ena_timer_wd_callback(__rte_unused struct rte_timer *timer,
1660 struct rte_eth_dev *dev = arg;
1661 struct ena_adapter *adapter = dev->data->dev_private;
1663 check_for_missing_keep_alive(adapter);
1664 check_for_admin_com_state(adapter);
1666 if (unlikely(adapter->trigger_reset)) {
1667 PMD_DRV_LOG(ERR, "Trigger reset is on\n");
1668 rte_eth_dev_callback_process(dev, RTE_ETH_EVENT_INTR_RESET,
1674 set_default_llq_configurations(struct ena_llq_configurations *llq_config,
1675 struct ena_admin_feature_llq_desc *llq,
1676 bool use_large_llq_hdr)
1678 llq_config->llq_header_location = ENA_ADMIN_INLINE_HEADER;
1679 llq_config->llq_stride_ctrl = ENA_ADMIN_MULTIPLE_DESCS_PER_ENTRY;
1680 llq_config->llq_num_decs_before_header =
1681 ENA_ADMIN_LLQ_NUM_DESCS_BEFORE_HEADER_2;
1683 if (use_large_llq_hdr &&
1684 (llq->entry_size_ctrl_supported & ENA_ADMIN_LIST_ENTRY_SIZE_256B)) {
1685 llq_config->llq_ring_entry_size =
1686 ENA_ADMIN_LIST_ENTRY_SIZE_256B;
1687 llq_config->llq_ring_entry_size_value = 256;
1689 llq_config->llq_ring_entry_size =
1690 ENA_ADMIN_LIST_ENTRY_SIZE_128B;
1691 llq_config->llq_ring_entry_size_value = 128;
1696 ena_set_queues_placement_policy(struct ena_adapter *adapter,
1697 struct ena_com_dev *ena_dev,
1698 struct ena_admin_feature_llq_desc *llq,
1699 struct ena_llq_configurations *llq_default_configurations)
1702 u32 llq_feature_mask;
1704 llq_feature_mask = 1 << ENA_ADMIN_LLQ;
1705 if (!(ena_dev->supported_features & llq_feature_mask)) {
1707 "LLQ is not supported. Fallback to host mode policy.\n");
1708 ena_dev->tx_mem_queue_type = ENA_ADMIN_PLACEMENT_POLICY_HOST;
1712 rc = ena_com_config_dev_mode(ena_dev, llq, llq_default_configurations);
1714 PMD_INIT_LOG(WARNING,
1715 "Failed to config dev mode. Fallback to host mode policy.\n");
1716 ena_dev->tx_mem_queue_type = ENA_ADMIN_PLACEMENT_POLICY_HOST;
1720 /* Nothing to config, exit */
1721 if (ena_dev->tx_mem_queue_type == ENA_ADMIN_PLACEMENT_POLICY_HOST)
1724 if (!adapter->dev_mem_base) {
1726 "Unable to access LLQ BAR resource. Fallback to host mode policy.\n");
1727 ena_dev->tx_mem_queue_type = ENA_ADMIN_PLACEMENT_POLICY_HOST;
1731 ena_dev->mem_bar = adapter->dev_mem_base;
1736 static uint32_t ena_calc_max_io_queue_num(struct ena_com_dev *ena_dev,
1737 struct ena_com_dev_get_features_ctx *get_feat_ctx)
1739 uint32_t io_tx_sq_num, io_tx_cq_num, io_rx_num, max_num_io_queues;
1741 /* Regular queues capabilities */
1742 if (ena_dev->supported_features & BIT(ENA_ADMIN_MAX_QUEUES_EXT)) {
1743 struct ena_admin_queue_ext_feature_fields *max_queue_ext =
1744 &get_feat_ctx->max_queue_ext.max_queue_ext;
1745 io_rx_num = RTE_MIN(max_queue_ext->max_rx_sq_num,
1746 max_queue_ext->max_rx_cq_num);
1747 io_tx_sq_num = max_queue_ext->max_tx_sq_num;
1748 io_tx_cq_num = max_queue_ext->max_tx_cq_num;
1750 struct ena_admin_queue_feature_desc *max_queues =
1751 &get_feat_ctx->max_queues;
1752 io_tx_sq_num = max_queues->max_sq_num;
1753 io_tx_cq_num = max_queues->max_cq_num;
1754 io_rx_num = RTE_MIN(io_tx_sq_num, io_tx_cq_num);
1757 /* In case of LLQ use the llq number in the get feature cmd */
1758 if (ena_dev->tx_mem_queue_type == ENA_ADMIN_PLACEMENT_POLICY_DEV)
1759 io_tx_sq_num = get_feat_ctx->llq.max_llq_num;
1761 max_num_io_queues = RTE_MIN(ENA_MAX_NUM_IO_QUEUES, io_rx_num);
1762 max_num_io_queues = RTE_MIN(max_num_io_queues, io_tx_sq_num);
1763 max_num_io_queues = RTE_MIN(max_num_io_queues, io_tx_cq_num);
1765 if (unlikely(max_num_io_queues == 0)) {
1766 PMD_DRV_LOG(ERR, "Number of IO queues cannot not be 0\n");
1770 return max_num_io_queues;
1773 static int eth_ena_dev_init(struct rte_eth_dev *eth_dev)
1775 struct ena_calc_queue_size_ctx calc_queue_ctx = { 0 };
1776 struct rte_pci_device *pci_dev;
1777 struct rte_intr_handle *intr_handle;
1778 struct ena_adapter *adapter = eth_dev->data->dev_private;
1779 struct ena_com_dev *ena_dev = &adapter->ena_dev;
1780 struct ena_com_dev_get_features_ctx get_feat_ctx;
1781 struct ena_llq_configurations llq_config;
1782 const char *queue_type_str;
1783 uint32_t max_num_io_queues;
1785 static int adapters_found;
1786 bool disable_meta_caching;
1787 bool wd_state = false;
1789 eth_dev->dev_ops = &ena_dev_ops;
1790 eth_dev->rx_pkt_burst = ð_ena_recv_pkts;
1791 eth_dev->tx_pkt_burst = ð_ena_xmit_pkts;
1792 eth_dev->tx_pkt_prepare = ð_ena_prep_pkts;
1794 if (rte_eal_process_type() != RTE_PROC_PRIMARY)
1797 eth_dev->data->dev_flags |= RTE_ETH_DEV_AUTOFILL_QUEUE_XSTATS;
1799 memset(adapter, 0, sizeof(struct ena_adapter));
1800 ena_dev = &adapter->ena_dev;
1802 adapter->edev_data = eth_dev->data;
1804 pci_dev = RTE_ETH_DEV_TO_PCI(eth_dev);
1806 PMD_INIT_LOG(INFO, "Initializing %x:%x:%x.%d\n",
1807 pci_dev->addr.domain,
1809 pci_dev->addr.devid,
1810 pci_dev->addr.function);
1812 intr_handle = &pci_dev->intr_handle;
1814 adapter->regs = pci_dev->mem_resource[ENA_REGS_BAR].addr;
1815 adapter->dev_mem_base = pci_dev->mem_resource[ENA_MEM_BAR].addr;
1817 if (!adapter->regs) {
1818 PMD_INIT_LOG(CRIT, "Failed to access registers BAR(%d)\n",
1823 ena_dev->reg_bar = adapter->regs;
1824 /* This is a dummy pointer for ena_com functions. */
1825 ena_dev->dmadev = adapter;
1827 adapter->id_number = adapters_found;
1829 snprintf(adapter->name, ENA_NAME_MAX_LEN, "ena_%d",
1830 adapter->id_number);
1832 rc = ena_parse_devargs(adapter, pci_dev->device.devargs);
1834 PMD_INIT_LOG(CRIT, "Failed to parse devargs\n");
1838 /* device specific initialization routine */
1839 rc = ena_device_init(ena_dev, pci_dev, &get_feat_ctx, &wd_state);
1841 PMD_INIT_LOG(CRIT, "Failed to init ENA device\n");
1844 adapter->wd_state = wd_state;
1846 set_default_llq_configurations(&llq_config, &get_feat_ctx.llq,
1847 adapter->use_large_llq_hdr);
1848 rc = ena_set_queues_placement_policy(adapter, ena_dev,
1849 &get_feat_ctx.llq, &llq_config);
1851 PMD_INIT_LOG(CRIT, "Failed to set placement policy\n");
1855 if (ena_dev->tx_mem_queue_type == ENA_ADMIN_PLACEMENT_POLICY_HOST)
1856 queue_type_str = "Regular";
1858 queue_type_str = "Low latency";
1859 PMD_DRV_LOG(INFO, "Placement policy: %s\n", queue_type_str);
1861 calc_queue_ctx.ena_dev = ena_dev;
1862 calc_queue_ctx.get_feat_ctx = &get_feat_ctx;
1864 max_num_io_queues = ena_calc_max_io_queue_num(ena_dev, &get_feat_ctx);
1865 rc = ena_calc_io_queue_size(&calc_queue_ctx,
1866 adapter->use_large_llq_hdr);
1867 if (unlikely((rc != 0) || (max_num_io_queues == 0))) {
1869 goto err_device_destroy;
1872 adapter->max_tx_ring_size = calc_queue_ctx.max_tx_queue_size;
1873 adapter->max_rx_ring_size = calc_queue_ctx.max_rx_queue_size;
1874 adapter->max_tx_sgl_size = calc_queue_ctx.max_tx_sgl_size;
1875 adapter->max_rx_sgl_size = calc_queue_ctx.max_rx_sgl_size;
1876 adapter->max_num_io_queues = max_num_io_queues;
1878 if (ena_dev->tx_mem_queue_type == ENA_ADMIN_PLACEMENT_POLICY_DEV) {
1879 disable_meta_caching =
1880 !!(get_feat_ctx.llq.accel_mode.u.get.supported_flags &
1881 BIT(ENA_ADMIN_DISABLE_META_CACHING));
1883 disable_meta_caching = false;
1886 /* prepare ring structures */
1887 ena_init_rings(adapter, disable_meta_caching);
1889 ena_config_debug_area(adapter);
1891 /* Set max MTU for this device */
1892 adapter->max_mtu = get_feat_ctx.dev_attr.max_mtu;
1894 /* set device support for offloads */
1895 adapter->offloads.tso4_supported = (get_feat_ctx.offload.tx &
1896 ENA_ADMIN_FEATURE_OFFLOAD_DESC_TSO_IPV4_MASK) != 0;
1897 adapter->offloads.tx_csum_supported = (get_feat_ctx.offload.tx &
1898 ENA_ADMIN_FEATURE_OFFLOAD_DESC_TX_L4_IPV4_CSUM_PART_MASK) != 0;
1899 adapter->offloads.rx_csum_supported =
1900 (get_feat_ctx.offload.rx_supported &
1901 ENA_ADMIN_FEATURE_OFFLOAD_DESC_RX_L4_IPV4_CSUM_MASK) != 0;
1903 /* Copy MAC address and point DPDK to it */
1904 eth_dev->data->mac_addrs = (struct rte_ether_addr *)adapter->mac_addr;
1905 rte_ether_addr_copy((struct rte_ether_addr *)
1906 get_feat_ctx.dev_attr.mac_addr,
1907 (struct rte_ether_addr *)adapter->mac_addr);
1909 adapter->drv_stats = rte_zmalloc("adapter stats",
1910 sizeof(*adapter->drv_stats),
1911 RTE_CACHE_LINE_SIZE);
1912 if (!adapter->drv_stats) {
1914 "Failed to allocate memory for adapter statistics\n");
1916 goto err_delete_debug_area;
1919 rte_spinlock_init(&adapter->admin_lock);
1921 rte_intr_callback_register(intr_handle,
1922 ena_interrupt_handler_rte,
1924 rte_intr_enable(intr_handle);
1925 ena_com_set_admin_polling_mode(ena_dev, false);
1926 ena_com_admin_aenq_enable(ena_dev);
1928 if (adapters_found == 0)
1929 rte_timer_subsystem_init();
1930 rte_timer_init(&adapter->timer_wd);
1933 adapter->state = ENA_ADAPTER_STATE_INIT;
1937 err_delete_debug_area:
1938 ena_com_delete_debug_area(ena_dev);
1941 ena_com_delete_host_info(ena_dev);
1942 ena_com_admin_destroy(ena_dev);
1948 static void ena_destroy_device(struct rte_eth_dev *eth_dev)
1950 struct ena_adapter *adapter = eth_dev->data->dev_private;
1951 struct ena_com_dev *ena_dev = &adapter->ena_dev;
1953 if (adapter->state == ENA_ADAPTER_STATE_FREE)
1956 ena_com_set_admin_running_state(ena_dev, false);
1958 if (adapter->state != ENA_ADAPTER_STATE_CLOSED)
1961 ena_com_delete_debug_area(ena_dev);
1962 ena_com_delete_host_info(ena_dev);
1964 ena_com_abort_admin_commands(ena_dev);
1965 ena_com_wait_for_abort_completion(ena_dev);
1966 ena_com_admin_destroy(ena_dev);
1967 ena_com_mmio_reg_read_request_destroy(ena_dev);
1969 adapter->state = ENA_ADAPTER_STATE_FREE;
1972 static int eth_ena_dev_uninit(struct rte_eth_dev *eth_dev)
1974 if (rte_eal_process_type() != RTE_PROC_PRIMARY)
1977 ena_destroy_device(eth_dev);
1982 static int ena_dev_configure(struct rte_eth_dev *dev)
1984 struct ena_adapter *adapter = dev->data->dev_private;
1986 adapter->state = ENA_ADAPTER_STATE_CONFIG;
1988 if (dev->data->dev_conf.rxmode.mq_mode & ETH_MQ_RX_RSS_FLAG)
1989 dev->data->dev_conf.rxmode.offloads |= DEV_RX_OFFLOAD_RSS_HASH;
1991 adapter->tx_selected_offloads = dev->data->dev_conf.txmode.offloads;
1992 adapter->rx_selected_offloads = dev->data->dev_conf.rxmode.offloads;
1996 static void ena_init_rings(struct ena_adapter *adapter,
1997 bool disable_meta_caching)
2001 for (i = 0; i < adapter->max_num_io_queues; i++) {
2002 struct ena_ring *ring = &adapter->tx_ring[i];
2004 ring->configured = 0;
2005 ring->type = ENA_RING_TYPE_TX;
2006 ring->adapter = adapter;
2008 ring->tx_mem_queue_type = adapter->ena_dev.tx_mem_queue_type;
2009 ring->tx_max_header_size = adapter->ena_dev.tx_max_header_size;
2010 ring->sgl_size = adapter->max_tx_sgl_size;
2011 ring->disable_meta_caching = disable_meta_caching;
2014 for (i = 0; i < adapter->max_num_io_queues; i++) {
2015 struct ena_ring *ring = &adapter->rx_ring[i];
2017 ring->configured = 0;
2018 ring->type = ENA_RING_TYPE_RX;
2019 ring->adapter = adapter;
2021 ring->sgl_size = adapter->max_rx_sgl_size;
2025 static int ena_infos_get(struct rte_eth_dev *dev,
2026 struct rte_eth_dev_info *dev_info)
2028 struct ena_adapter *adapter;
2029 struct ena_com_dev *ena_dev;
2030 uint64_t rx_feat = 0, tx_feat = 0;
2032 ena_assert_msg(dev->data != NULL, "Uninitialized device\n");
2033 ena_assert_msg(dev->data->dev_private != NULL, "Uninitialized device\n");
2034 adapter = dev->data->dev_private;
2036 ena_dev = &adapter->ena_dev;
2037 ena_assert_msg(ena_dev != NULL, "Uninitialized device\n");
2039 dev_info->speed_capa =
2041 ETH_LINK_SPEED_2_5G |
2043 ETH_LINK_SPEED_10G |
2044 ETH_LINK_SPEED_25G |
2045 ETH_LINK_SPEED_40G |
2046 ETH_LINK_SPEED_50G |
2047 ETH_LINK_SPEED_100G;
2049 /* Set Tx & Rx features available for device */
2050 if (adapter->offloads.tso4_supported)
2051 tx_feat |= DEV_TX_OFFLOAD_TCP_TSO;
2053 if (adapter->offloads.tx_csum_supported)
2054 tx_feat |= DEV_TX_OFFLOAD_IPV4_CKSUM |
2055 DEV_TX_OFFLOAD_UDP_CKSUM |
2056 DEV_TX_OFFLOAD_TCP_CKSUM;
2058 if (adapter->offloads.rx_csum_supported)
2059 rx_feat |= DEV_RX_OFFLOAD_IPV4_CKSUM |
2060 DEV_RX_OFFLOAD_UDP_CKSUM |
2061 DEV_RX_OFFLOAD_TCP_CKSUM;
2063 rx_feat |= DEV_RX_OFFLOAD_JUMBO_FRAME;
2065 /* Inform framework about available features */
2066 dev_info->rx_offload_capa = rx_feat;
2067 dev_info->rx_offload_capa |= DEV_RX_OFFLOAD_RSS_HASH;
2068 dev_info->rx_queue_offload_capa = rx_feat;
2069 dev_info->tx_offload_capa = tx_feat;
2070 dev_info->tx_queue_offload_capa = tx_feat;
2072 dev_info->flow_type_rss_offloads = ETH_RSS_IP | ETH_RSS_TCP |
2075 dev_info->min_rx_bufsize = ENA_MIN_FRAME_LEN;
2076 dev_info->max_rx_pktlen = adapter->max_mtu;
2077 dev_info->max_mac_addrs = 1;
2079 dev_info->max_rx_queues = adapter->max_num_io_queues;
2080 dev_info->max_tx_queues = adapter->max_num_io_queues;
2081 dev_info->reta_size = ENA_RX_RSS_TABLE_SIZE;
2083 adapter->tx_supported_offloads = tx_feat;
2084 adapter->rx_supported_offloads = rx_feat;
2086 dev_info->rx_desc_lim.nb_max = adapter->max_rx_ring_size;
2087 dev_info->rx_desc_lim.nb_min = ENA_MIN_RING_DESC;
2088 dev_info->rx_desc_lim.nb_seg_max = RTE_MIN(ENA_PKT_MAX_BUFS,
2089 adapter->max_rx_sgl_size);
2090 dev_info->rx_desc_lim.nb_mtu_seg_max = RTE_MIN(ENA_PKT_MAX_BUFS,
2091 adapter->max_rx_sgl_size);
2093 dev_info->tx_desc_lim.nb_max = adapter->max_tx_ring_size;
2094 dev_info->tx_desc_lim.nb_min = ENA_MIN_RING_DESC;
2095 dev_info->tx_desc_lim.nb_seg_max = RTE_MIN(ENA_PKT_MAX_BUFS,
2096 adapter->max_tx_sgl_size);
2097 dev_info->tx_desc_lim.nb_mtu_seg_max = RTE_MIN(ENA_PKT_MAX_BUFS,
2098 adapter->max_tx_sgl_size);
2100 dev_info->default_rxportconf.ring_size = ENA_DEFAULT_RING_SIZE;
2101 dev_info->default_txportconf.ring_size = ENA_DEFAULT_RING_SIZE;
2106 static inline void ena_init_rx_mbuf(struct rte_mbuf *mbuf, uint16_t len)
2108 mbuf->data_len = len;
2109 mbuf->data_off = RTE_PKTMBUF_HEADROOM;
2114 static struct rte_mbuf *ena_rx_mbuf(struct ena_ring *rx_ring,
2115 struct ena_com_rx_buf_info *ena_bufs,
2117 uint16_t *next_to_clean,
2120 struct rte_mbuf *mbuf;
2121 struct rte_mbuf *mbuf_head;
2122 struct ena_rx_buffer *rx_info;
2124 uint16_t ntc, len, req_id, buf = 0;
2126 if (unlikely(descs == 0))
2129 ntc = *next_to_clean;
2131 len = ena_bufs[buf].len;
2132 req_id = ena_bufs[buf].req_id;
2134 rx_info = &rx_ring->rx_buffer_info[req_id];
2136 mbuf = rx_info->mbuf;
2137 RTE_ASSERT(mbuf != NULL);
2139 ena_init_rx_mbuf(mbuf, len);
2141 /* Fill the mbuf head with the data specific for 1st segment. */
2143 mbuf_head->nb_segs = descs;
2144 mbuf_head->port = rx_ring->port_id;
2145 mbuf_head->pkt_len = len;
2146 mbuf_head->data_off += offset;
2148 rx_info->mbuf = NULL;
2149 rx_ring->empty_rx_reqs[ntc] = req_id;
2150 ntc = ENA_IDX_NEXT_MASKED(ntc, rx_ring->size_mask);
2154 len = ena_bufs[buf].len;
2155 req_id = ena_bufs[buf].req_id;
2157 rx_info = &rx_ring->rx_buffer_info[req_id];
2158 RTE_ASSERT(rx_info->mbuf != NULL);
2160 if (unlikely(len == 0)) {
2162 * Some devices can pass descriptor with the length 0.
2163 * To avoid confusion, the PMD is simply putting the
2164 * descriptor back, as it was never used. We'll avoid
2165 * mbuf allocation that way.
2167 rc = ena_add_single_rx_desc(rx_ring->ena_com_io_sq,
2168 rx_info->mbuf, req_id);
2169 if (unlikely(rc != 0)) {
2170 /* Free the mbuf in case of an error. */
2171 rte_mbuf_raw_free(rx_info->mbuf);
2174 * If there was no error, just exit the loop as
2175 * 0 length descriptor is always the last one.
2180 /* Create an mbuf chain. */
2181 mbuf->next = rx_info->mbuf;
2184 ena_init_rx_mbuf(mbuf, len);
2185 mbuf_head->pkt_len += len;
2189 * Mark the descriptor as depleted and perform necessary
2191 * This code will execute in two cases:
2192 * 1. Descriptor len was greater than 0 - normal situation.
2193 * 2. Descriptor len was 0 and we failed to add the descriptor
2194 * to the device. In that situation, we should try to add
2195 * the mbuf again in the populate routine and mark the
2196 * descriptor as used up by the device.
2198 rx_info->mbuf = NULL;
2199 rx_ring->empty_rx_reqs[ntc] = req_id;
2200 ntc = ENA_IDX_NEXT_MASKED(ntc, rx_ring->size_mask);
2203 *next_to_clean = ntc;
2208 static uint16_t eth_ena_recv_pkts(void *rx_queue, struct rte_mbuf **rx_pkts,
2211 struct ena_ring *rx_ring = (struct ena_ring *)(rx_queue);
2212 unsigned int free_queue_entries;
2213 unsigned int refill_threshold;
2214 uint16_t next_to_clean = rx_ring->next_to_clean;
2215 uint16_t descs_in_use;
2216 struct rte_mbuf *mbuf;
2218 struct ena_com_rx_ctx ena_rx_ctx;
2221 /* Check adapter state */
2222 if (unlikely(rx_ring->adapter->state != ENA_ADAPTER_STATE_RUNNING)) {
2224 "Trying to receive pkts while device is NOT running\n");
2228 descs_in_use = rx_ring->ring_size -
2229 ena_com_free_q_entries(rx_ring->ena_com_io_sq) - 1;
2230 nb_pkts = RTE_MIN(descs_in_use, nb_pkts);
2232 for (completed = 0; completed < nb_pkts; completed++) {
2233 ena_rx_ctx.max_bufs = rx_ring->sgl_size;
2234 ena_rx_ctx.ena_bufs = rx_ring->ena_bufs;
2235 ena_rx_ctx.descs = 0;
2236 ena_rx_ctx.pkt_offset = 0;
2237 /* receive packet context */
2238 rc = ena_com_rx_pkt(rx_ring->ena_com_io_cq,
2239 rx_ring->ena_com_io_sq,
2243 "Failed to get the packet from the device, rc: %d\n",
2245 if (rc == ENA_COM_NO_SPACE) {
2246 ++rx_ring->rx_stats.bad_desc_num;
2247 rx_ring->adapter->reset_reason =
2248 ENA_REGS_RESET_TOO_MANY_RX_DESCS;
2250 ++rx_ring->rx_stats.bad_req_id;
2251 rx_ring->adapter->reset_reason =
2252 ENA_REGS_RESET_INV_RX_REQ_ID;
2254 rx_ring->adapter->trigger_reset = true;
2258 mbuf = ena_rx_mbuf(rx_ring,
2259 ena_rx_ctx.ena_bufs,
2262 ena_rx_ctx.pkt_offset);
2263 if (unlikely(mbuf == NULL)) {
2264 for (i = 0; i < ena_rx_ctx.descs; ++i) {
2265 rx_ring->empty_rx_reqs[next_to_clean] =
2266 rx_ring->ena_bufs[i].req_id;
2267 next_to_clean = ENA_IDX_NEXT_MASKED(
2268 next_to_clean, rx_ring->size_mask);
2273 /* fill mbuf attributes if any */
2274 ena_rx_mbuf_prepare(mbuf, &ena_rx_ctx);
2276 if (unlikely(mbuf->ol_flags &
2277 (PKT_RX_IP_CKSUM_BAD | PKT_RX_L4_CKSUM_BAD))) {
2278 rte_atomic64_inc(&rx_ring->adapter->drv_stats->ierrors);
2279 ++rx_ring->rx_stats.bad_csum;
2282 rx_pkts[completed] = mbuf;
2283 rx_ring->rx_stats.bytes += mbuf->pkt_len;
2286 rx_ring->rx_stats.cnt += completed;
2287 rx_ring->next_to_clean = next_to_clean;
2289 free_queue_entries = ena_com_free_q_entries(rx_ring->ena_com_io_sq);
2291 RTE_MIN(rx_ring->ring_size / ENA_REFILL_THRESH_DIVIDER,
2292 (unsigned int)ENA_REFILL_THRESH_PACKET);
2294 /* Burst refill to save doorbells, memory barriers, const interval */
2295 if (free_queue_entries > refill_threshold) {
2296 ena_com_update_dev_comp_head(rx_ring->ena_com_io_cq);
2297 ena_populate_rx_queue(rx_ring, free_queue_entries);
2304 eth_ena_prep_pkts(void *tx_queue, struct rte_mbuf **tx_pkts,
2310 struct ena_ring *tx_ring = (struct ena_ring *)(tx_queue);
2311 struct rte_ipv4_hdr *ip_hdr;
2313 uint16_t frag_field;
2315 for (i = 0; i != nb_pkts; i++) {
2317 ol_flags = m->ol_flags;
2319 if (!(ol_flags & PKT_TX_IPV4))
2322 /* If there was not L2 header length specified, assume it is
2323 * length of the ethernet header.
2325 if (unlikely(m->l2_len == 0))
2326 m->l2_len = sizeof(struct rte_ether_hdr);
2328 ip_hdr = rte_pktmbuf_mtod_offset(m, struct rte_ipv4_hdr *,
2330 frag_field = rte_be_to_cpu_16(ip_hdr->fragment_offset);
2332 if ((frag_field & RTE_IPV4_HDR_DF_FLAG) != 0) {
2333 m->packet_type |= RTE_PTYPE_L4_NONFRAG;
2335 /* If IPv4 header has DF flag enabled and TSO support is
2336 * disabled, partial chcecksum should not be calculated.
2338 if (!tx_ring->adapter->offloads.tso4_supported)
2342 if ((ol_flags & ENA_TX_OFFLOAD_NOTSUP_MASK) != 0 ||
2343 (ol_flags & PKT_TX_L4_MASK) ==
2344 PKT_TX_SCTP_CKSUM) {
2345 rte_errno = ENOTSUP;
2349 #ifdef RTE_LIBRTE_ETHDEV_DEBUG
2350 ret = rte_validate_tx_offload(m);
2357 /* In case we are supposed to TSO and have DF not set (DF=0)
2358 * hardware must be provided with partial checksum, otherwise
2359 * it will take care of necessary calculations.
2362 ret = rte_net_intel_cksum_flags_prepare(m,
2363 ol_flags & ~PKT_TX_TCP_SEG);
2373 static void ena_update_hints(struct ena_adapter *adapter,
2374 struct ena_admin_ena_hw_hints *hints)
2376 if (hints->admin_completion_tx_timeout)
2377 adapter->ena_dev.admin_queue.completion_timeout =
2378 hints->admin_completion_tx_timeout * 1000;
2380 if (hints->mmio_read_timeout)
2381 /* convert to usec */
2382 adapter->ena_dev.mmio_read.reg_read_to =
2383 hints->mmio_read_timeout * 1000;
2385 if (hints->driver_watchdog_timeout) {
2386 if (hints->driver_watchdog_timeout == ENA_HW_HINTS_NO_TIMEOUT)
2387 adapter->keep_alive_timeout = ENA_HW_HINTS_NO_TIMEOUT;
2389 // Convert msecs to ticks
2390 adapter->keep_alive_timeout =
2391 (hints->driver_watchdog_timeout *
2392 rte_get_timer_hz()) / 1000;
2396 static int ena_check_space_and_linearize_mbuf(struct ena_ring *tx_ring,
2397 struct rte_mbuf *mbuf)
2399 struct ena_com_dev *ena_dev;
2400 int num_segments, header_len, rc;
2402 ena_dev = &tx_ring->adapter->ena_dev;
2403 num_segments = mbuf->nb_segs;
2404 header_len = mbuf->data_len;
2406 if (likely(num_segments < tx_ring->sgl_size))
2409 if (ena_dev->tx_mem_queue_type == ENA_ADMIN_PLACEMENT_POLICY_DEV &&
2410 (num_segments == tx_ring->sgl_size) &&
2411 (header_len < tx_ring->tx_max_header_size))
2414 /* Checking for space for 2 additional metadata descriptors due to
2415 * possible header split and metadata descriptor. Linearization will
2416 * be needed so we reduce the segments number from num_segments to 1
2418 if (!ena_com_sq_have_enough_space(tx_ring->ena_com_io_sq, 3)) {
2419 PMD_DRV_LOG(DEBUG, "Not enough space in the Tx queue\n");
2420 return ENA_COM_NO_MEM;
2422 ++tx_ring->tx_stats.linearize;
2423 rc = rte_pktmbuf_linearize(mbuf);
2425 PMD_DRV_LOG(WARNING, "Mbuf linearize failed\n");
2426 rte_atomic64_inc(&tx_ring->adapter->drv_stats->ierrors);
2427 ++tx_ring->tx_stats.linearize_failed;
2434 /* Checking for space for 2 additional metadata descriptors due to
2435 * possible header split and metadata descriptor
2437 if (!ena_com_sq_have_enough_space(tx_ring->ena_com_io_sq,
2438 num_segments + 2)) {
2439 PMD_DRV_LOG(DEBUG, "Not enough space in the Tx queue\n");
2440 return ENA_COM_NO_MEM;
2446 static void ena_tx_map_mbuf(struct ena_ring *tx_ring,
2447 struct ena_tx_buffer *tx_info,
2448 struct rte_mbuf *mbuf,
2450 uint16_t *header_len)
2452 struct ena_com_buf *ena_buf;
2453 uint16_t delta, seg_len, push_len;
2456 seg_len = mbuf->data_len;
2458 tx_info->mbuf = mbuf;
2459 ena_buf = tx_info->bufs;
2461 if (tx_ring->tx_mem_queue_type == ENA_ADMIN_PLACEMENT_POLICY_DEV) {
2463 * Tx header might be (and will be in most cases) smaller than
2464 * tx_max_header_size. But it's not an issue to send more data
2465 * to the device, than actually needed if the mbuf size is
2466 * greater than tx_max_header_size.
2468 push_len = RTE_MIN(mbuf->pkt_len, tx_ring->tx_max_header_size);
2469 *header_len = push_len;
2471 if (likely(push_len <= seg_len)) {
2472 /* If the push header is in the single segment, then
2473 * just point it to the 1st mbuf data.
2475 *push_header = rte_pktmbuf_mtod(mbuf, uint8_t *);
2477 /* If the push header lays in the several segments, copy
2478 * it to the intermediate buffer.
2480 rte_pktmbuf_read(mbuf, 0, push_len,
2481 tx_ring->push_buf_intermediate_buf);
2482 *push_header = tx_ring->push_buf_intermediate_buf;
2483 delta = push_len - seg_len;
2486 *push_header = NULL;
2491 /* Process first segment taking into consideration pushed header */
2492 if (seg_len > push_len) {
2493 ena_buf->paddr = mbuf->buf_iova +
2496 ena_buf->len = seg_len - push_len;
2498 tx_info->num_of_bufs++;
2501 while ((mbuf = mbuf->next) != NULL) {
2502 seg_len = mbuf->data_len;
2504 /* Skip mbufs if whole data is pushed as a header */
2505 if (unlikely(delta > seg_len)) {
2510 ena_buf->paddr = mbuf->buf_iova + mbuf->data_off + delta;
2511 ena_buf->len = seg_len - delta;
2513 tx_info->num_of_bufs++;
2519 static int ena_xmit_mbuf(struct ena_ring *tx_ring, struct rte_mbuf *mbuf)
2521 struct ena_tx_buffer *tx_info;
2522 struct ena_com_tx_ctx ena_tx_ctx = { { 0 } };
2523 uint16_t next_to_use;
2524 uint16_t header_len;
2530 rc = ena_check_space_and_linearize_mbuf(tx_ring, mbuf);
2534 next_to_use = tx_ring->next_to_use;
2536 req_id = tx_ring->empty_tx_reqs[next_to_use];
2537 tx_info = &tx_ring->tx_buffer_info[req_id];
2538 tx_info->num_of_bufs = 0;
2540 ena_tx_map_mbuf(tx_ring, tx_info, mbuf, &push_header, &header_len);
2542 ena_tx_ctx.ena_bufs = tx_info->bufs;
2543 ena_tx_ctx.push_header = push_header;
2544 ena_tx_ctx.num_bufs = tx_info->num_of_bufs;
2545 ena_tx_ctx.req_id = req_id;
2546 ena_tx_ctx.header_len = header_len;
2548 /* Set Tx offloads flags, if applicable */
2549 ena_tx_mbuf_prepare(mbuf, &ena_tx_ctx, tx_ring->offloads,
2550 tx_ring->disable_meta_caching);
2552 if (unlikely(ena_com_is_doorbell_needed(tx_ring->ena_com_io_sq,
2555 "LLQ Tx max burst size of queue %d achieved, writing doorbell to send burst\n",
2557 ena_com_write_sq_doorbell(tx_ring->ena_com_io_sq);
2558 tx_ring->tx_stats.doorbells++;
2559 tx_ring->pkts_without_db = false;
2562 /* prepare the packet's descriptors to dma engine */
2563 rc = ena_com_prepare_tx(tx_ring->ena_com_io_sq, &ena_tx_ctx,
2566 ++tx_ring->tx_stats.prepare_ctx_err;
2570 tx_info->tx_descs = nb_hw_desc;
2572 tx_ring->tx_stats.cnt++;
2573 tx_ring->tx_stats.bytes += mbuf->pkt_len;
2575 tx_ring->next_to_use = ENA_IDX_NEXT_MASKED(next_to_use,
2576 tx_ring->size_mask);
2581 static void ena_tx_cleanup(struct ena_ring *tx_ring)
2583 unsigned int cleanup_budget;
2584 unsigned int total_tx_descs = 0;
2585 uint16_t next_to_clean = tx_ring->next_to_clean;
2587 cleanup_budget = RTE_MIN(tx_ring->ring_size / ENA_REFILL_THRESH_DIVIDER,
2588 (unsigned int)ENA_REFILL_THRESH_PACKET);
2590 while (likely(total_tx_descs < cleanup_budget)) {
2591 struct rte_mbuf *mbuf;
2592 struct ena_tx_buffer *tx_info;
2595 if (ena_com_tx_comp_req_id_get(tx_ring->ena_com_io_cq, &req_id) != 0)
2598 if (unlikely(validate_tx_req_id(tx_ring, req_id) != 0))
2601 /* Get Tx info & store how many descs were processed */
2602 tx_info = &tx_ring->tx_buffer_info[req_id];
2604 mbuf = tx_info->mbuf;
2605 rte_pktmbuf_free(mbuf);
2607 tx_info->mbuf = NULL;
2608 tx_ring->empty_tx_reqs[next_to_clean] = req_id;
2610 total_tx_descs += tx_info->tx_descs;
2612 /* Put back descriptor to the ring for reuse */
2613 next_to_clean = ENA_IDX_NEXT_MASKED(next_to_clean,
2614 tx_ring->size_mask);
2617 if (likely(total_tx_descs > 0)) {
2618 /* acknowledge completion of sent packets */
2619 tx_ring->next_to_clean = next_to_clean;
2620 ena_com_comp_ack(tx_ring->ena_com_io_sq, total_tx_descs);
2621 ena_com_update_dev_comp_head(tx_ring->ena_com_io_cq);
2625 static uint16_t eth_ena_xmit_pkts(void *tx_queue, struct rte_mbuf **tx_pkts,
2628 struct ena_ring *tx_ring = (struct ena_ring *)(tx_queue);
2629 uint16_t sent_idx = 0;
2631 /* Check adapter state */
2632 if (unlikely(tx_ring->adapter->state != ENA_ADAPTER_STATE_RUNNING)) {
2634 "Trying to xmit pkts while device is NOT running\n");
2638 for (sent_idx = 0; sent_idx < nb_pkts; sent_idx++) {
2639 if (ena_xmit_mbuf(tx_ring, tx_pkts[sent_idx]))
2641 tx_ring->pkts_without_db = true;
2642 rte_prefetch0(tx_pkts[ENA_IDX_ADD_MASKED(sent_idx, 4,
2643 tx_ring->size_mask)]);
2646 tx_ring->tx_stats.available_desc =
2647 ena_com_free_q_entries(tx_ring->ena_com_io_sq);
2649 /* If there are ready packets to be xmitted... */
2650 if (likely(tx_ring->pkts_without_db)) {
2651 /* ...let HW do its best :-) */
2652 ena_com_write_sq_doorbell(tx_ring->ena_com_io_sq);
2653 tx_ring->tx_stats.doorbells++;
2654 tx_ring->pkts_without_db = false;
2657 ena_tx_cleanup(tx_ring);
2659 tx_ring->tx_stats.available_desc =
2660 ena_com_free_q_entries(tx_ring->ena_com_io_sq);
2661 tx_ring->tx_stats.tx_poll++;
2666 int ena_copy_eni_stats(struct ena_adapter *adapter)
2668 struct ena_admin_eni_stats admin_eni_stats;
2671 rte_spinlock_lock(&adapter->admin_lock);
2672 rc = ena_com_get_eni_stats(&adapter->ena_dev, &admin_eni_stats);
2673 rte_spinlock_unlock(&adapter->admin_lock);
2675 if (rc == ENA_COM_UNSUPPORTED) {
2677 "Retrieving ENI metrics is not supported\n");
2679 PMD_DRV_LOG(WARNING,
2680 "Failed to get ENI metrics, rc: %d\n", rc);
2685 rte_memcpy(&adapter->eni_stats, &admin_eni_stats,
2686 sizeof(struct ena_stats_eni));
2692 * DPDK callback to retrieve names of extended device statistics
2695 * Pointer to Ethernet device structure.
2696 * @param[out] xstats_names
2697 * Buffer to insert names into.
2702 * Number of xstats names.
2704 static int ena_xstats_get_names(struct rte_eth_dev *dev,
2705 struct rte_eth_xstat_name *xstats_names,
2708 unsigned int xstats_count = ena_xstats_calc_num(dev->data);
2709 unsigned int stat, i, count = 0;
2711 if (n < xstats_count || !xstats_names)
2712 return xstats_count;
2714 for (stat = 0; stat < ENA_STATS_ARRAY_GLOBAL; stat++, count++)
2715 strcpy(xstats_names[count].name,
2716 ena_stats_global_strings[stat].name);
2718 for (stat = 0; stat < ENA_STATS_ARRAY_ENI; stat++, count++)
2719 strcpy(xstats_names[count].name,
2720 ena_stats_eni_strings[stat].name);
2722 for (stat = 0; stat < ENA_STATS_ARRAY_RX; stat++)
2723 for (i = 0; i < dev->data->nb_rx_queues; i++, count++)
2724 snprintf(xstats_names[count].name,
2725 sizeof(xstats_names[count].name),
2727 ena_stats_rx_strings[stat].name);
2729 for (stat = 0; stat < ENA_STATS_ARRAY_TX; stat++)
2730 for (i = 0; i < dev->data->nb_tx_queues; i++, count++)
2731 snprintf(xstats_names[count].name,
2732 sizeof(xstats_names[count].name),
2734 ena_stats_tx_strings[stat].name);
2736 return xstats_count;
2740 * DPDK callback to get extended device statistics.
2743 * Pointer to Ethernet device structure.
2745 * Stats table output buffer.
2747 * The size of the stats table.
2750 * Number of xstats on success, negative on failure.
2752 static int ena_xstats_get(struct rte_eth_dev *dev,
2753 struct rte_eth_xstat *xstats,
2756 struct ena_adapter *adapter = dev->data->dev_private;
2757 unsigned int xstats_count = ena_xstats_calc_num(dev->data);
2758 unsigned int stat, i, count = 0;
2762 if (n < xstats_count)
2763 return xstats_count;
2768 for (stat = 0; stat < ENA_STATS_ARRAY_GLOBAL; stat++, count++) {
2769 stat_offset = ena_stats_global_strings[stat].stat_offset;
2770 stats_begin = &adapter->dev_stats;
2772 xstats[count].id = count;
2773 xstats[count].value = *((uint64_t *)
2774 ((char *)stats_begin + stat_offset));
2777 /* Even if the function below fails, we should copy previous (or initial
2778 * values) to keep structure of rte_eth_xstat consistent.
2780 ena_copy_eni_stats(adapter);
2781 for (stat = 0; stat < ENA_STATS_ARRAY_ENI; stat++, count++) {
2782 stat_offset = ena_stats_eni_strings[stat].stat_offset;
2783 stats_begin = &adapter->eni_stats;
2785 xstats[count].id = count;
2786 xstats[count].value = *((uint64_t *)
2787 ((char *)stats_begin + stat_offset));
2790 for (stat = 0; stat < ENA_STATS_ARRAY_RX; stat++) {
2791 for (i = 0; i < dev->data->nb_rx_queues; i++, count++) {
2792 stat_offset = ena_stats_rx_strings[stat].stat_offset;
2793 stats_begin = &adapter->rx_ring[i].rx_stats;
2795 xstats[count].id = count;
2796 xstats[count].value = *((uint64_t *)
2797 ((char *)stats_begin + stat_offset));
2801 for (stat = 0; stat < ENA_STATS_ARRAY_TX; stat++) {
2802 for (i = 0; i < dev->data->nb_tx_queues; i++, count++) {
2803 stat_offset = ena_stats_tx_strings[stat].stat_offset;
2804 stats_begin = &adapter->tx_ring[i].rx_stats;
2806 xstats[count].id = count;
2807 xstats[count].value = *((uint64_t *)
2808 ((char *)stats_begin + stat_offset));
2815 static int ena_xstats_get_by_id(struct rte_eth_dev *dev,
2816 const uint64_t *ids,
2820 struct ena_adapter *adapter = dev->data->dev_private;
2822 uint64_t rx_entries, tx_entries;
2826 bool was_eni_copied = false;
2828 for (i = 0; i < n; ++i) {
2830 /* Check if id belongs to global statistics */
2831 if (id < ENA_STATS_ARRAY_GLOBAL) {
2832 values[i] = *((uint64_t *)&adapter->dev_stats + id);
2837 /* Check if id belongs to ENI statistics */
2838 id -= ENA_STATS_ARRAY_GLOBAL;
2839 if (id < ENA_STATS_ARRAY_ENI) {
2840 /* Avoid reading ENI stats multiple times in a single
2841 * function call, as it requires communication with the
2844 if (!was_eni_copied) {
2845 was_eni_copied = true;
2846 ena_copy_eni_stats(adapter);
2848 values[i] = *((uint64_t *)&adapter->eni_stats + id);
2853 /* Check if id belongs to rx queue statistics */
2854 id -= ENA_STATS_ARRAY_ENI;
2855 rx_entries = ENA_STATS_ARRAY_RX * dev->data->nb_rx_queues;
2856 if (id < rx_entries) {
2857 qid = id % dev->data->nb_rx_queues;
2858 id /= dev->data->nb_rx_queues;
2859 values[i] = *((uint64_t *)
2860 &adapter->rx_ring[qid].rx_stats + id);
2864 /* Check if id belongs to rx queue statistics */
2866 tx_entries = ENA_STATS_ARRAY_TX * dev->data->nb_tx_queues;
2867 if (id < tx_entries) {
2868 qid = id % dev->data->nb_tx_queues;
2869 id /= dev->data->nb_tx_queues;
2870 values[i] = *((uint64_t *)
2871 &adapter->tx_ring[qid].tx_stats + id);
2880 static int ena_process_bool_devarg(const char *key,
2884 struct ena_adapter *adapter = opaque;
2887 /* Parse the value. */
2888 if (strcmp(value, "1") == 0) {
2890 } else if (strcmp(value, "0") == 0) {
2894 "Invalid value: '%s' for key '%s'. Accepted: '0' or '1'\n",
2899 /* Now, assign it to the proper adapter field. */
2900 if (strcmp(key, ENA_DEVARG_LARGE_LLQ_HDR) == 0)
2901 adapter->use_large_llq_hdr = bool_value;
2906 static int ena_parse_devargs(struct ena_adapter *adapter,
2907 struct rte_devargs *devargs)
2909 static const char * const allowed_args[] = {
2910 ENA_DEVARG_LARGE_LLQ_HDR,
2913 struct rte_kvargs *kvlist;
2916 if (devargs == NULL)
2919 kvlist = rte_kvargs_parse(devargs->args, allowed_args);
2920 if (kvlist == NULL) {
2921 PMD_INIT_LOG(ERR, "Invalid device arguments: %s\n",
2926 rc = rte_kvargs_process(kvlist, ENA_DEVARG_LARGE_LLQ_HDR,
2927 ena_process_bool_devarg, adapter);
2929 rte_kvargs_free(kvlist);
2934 /*********************************************************************
2936 *********************************************************************/
2937 static int eth_ena_pci_probe(struct rte_pci_driver *pci_drv __rte_unused,
2938 struct rte_pci_device *pci_dev)
2940 return rte_eth_dev_pci_generic_probe(pci_dev,
2941 sizeof(struct ena_adapter), eth_ena_dev_init);
2944 static int eth_ena_pci_remove(struct rte_pci_device *pci_dev)
2946 return rte_eth_dev_pci_generic_remove(pci_dev, eth_ena_dev_uninit);
2949 static struct rte_pci_driver rte_ena_pmd = {
2950 .id_table = pci_id_ena_map,
2951 .drv_flags = RTE_PCI_DRV_NEED_MAPPING | RTE_PCI_DRV_INTR_LSC |
2952 RTE_PCI_DRV_WC_ACTIVATE,
2953 .probe = eth_ena_pci_probe,
2954 .remove = eth_ena_pci_remove,
2957 RTE_PMD_REGISTER_PCI(net_ena, rte_ena_pmd);
2958 RTE_PMD_REGISTER_PCI_TABLE(net_ena, pci_id_ena_map);
2959 RTE_PMD_REGISTER_KMOD_DEP(net_ena, "* igb_uio | uio_pci_generic | vfio-pci");
2960 RTE_PMD_REGISTER_PARAM_STRING(net_ena, ENA_DEVARG_LARGE_LLQ_HDR "=<0|1>");
2961 RTE_LOG_REGISTER_SUFFIX(ena_logtype_init, init, NOTICE);
2962 RTE_LOG_REGISTER_SUFFIX(ena_logtype_driver, driver, NOTICE);
2963 #ifdef RTE_LIBRTE_ENA_DEBUG_RX
2964 RTE_LOG_REGISTER_SUFFIX(ena_logtype_rx, rx, NOTICE);
2966 #ifdef RTE_LIBRTE_ENA_DEBUG_TX
2967 RTE_LOG_REGISTER_SUFFIX(ena_logtype_tx, tx, NOTICE);
2969 #ifdef RTE_LIBRTE_ENA_DEBUG_TX_FREE
2970 RTE_LOG_REGISTER_SUFFIX(ena_logtype_tx_free, tx_free, NOTICE);
2972 #ifdef RTE_LIBRTE_ENA_COM_DEBUG
2973 RTE_LOG_REGISTER_SUFFIX(ena_logtype_com, com, NOTICE);
2976 /******************************************************************************
2977 ******************************** AENQ Handlers *******************************
2978 *****************************************************************************/
2979 static void ena_update_on_link_change(void *adapter_data,
2980 struct ena_admin_aenq_entry *aenq_e)
2982 struct rte_eth_dev *eth_dev = adapter_data;
2983 struct ena_adapter *adapter = eth_dev->data->dev_private;
2984 struct ena_admin_aenq_link_change_desc *aenq_link_desc;
2987 aenq_link_desc = (struct ena_admin_aenq_link_change_desc *)aenq_e;
2989 status = get_ena_admin_aenq_link_change_desc_link_status(aenq_link_desc);
2990 adapter->link_status = status;
2992 ena_link_update(eth_dev, 0);
2993 rte_eth_dev_callback_process(eth_dev, RTE_ETH_EVENT_INTR_LSC, NULL);
2996 static void ena_notification(void *adapter_data,
2997 struct ena_admin_aenq_entry *aenq_e)
2999 struct rte_eth_dev *eth_dev = adapter_data;
3000 struct ena_adapter *adapter = eth_dev->data->dev_private;
3001 struct ena_admin_ena_hw_hints *hints;
3003 if (aenq_e->aenq_common_desc.group != ENA_ADMIN_NOTIFICATION)
3004 PMD_DRV_LOG(WARNING, "Invalid AENQ group: %x. Expected: %x\n",
3005 aenq_e->aenq_common_desc.group,
3006 ENA_ADMIN_NOTIFICATION);
3008 switch (aenq_e->aenq_common_desc.syndrome) {
3009 case ENA_ADMIN_UPDATE_HINTS:
3010 hints = (struct ena_admin_ena_hw_hints *)
3011 (&aenq_e->inline_data_w4);
3012 ena_update_hints(adapter, hints);
3015 PMD_DRV_LOG(ERR, "Invalid AENQ notification link state: %d\n",
3016 aenq_e->aenq_common_desc.syndrome);
3020 static void ena_keep_alive(void *adapter_data,
3021 __rte_unused struct ena_admin_aenq_entry *aenq_e)
3023 struct rte_eth_dev *eth_dev = adapter_data;
3024 struct ena_adapter *adapter = eth_dev->data->dev_private;
3025 struct ena_admin_aenq_keep_alive_desc *desc;
3029 adapter->timestamp_wd = rte_get_timer_cycles();
3031 desc = (struct ena_admin_aenq_keep_alive_desc *)aenq_e;
3032 rx_drops = ((uint64_t)desc->rx_drops_high << 32) | desc->rx_drops_low;
3033 tx_drops = ((uint64_t)desc->tx_drops_high << 32) | desc->tx_drops_low;
3035 adapter->drv_stats->rx_drops = rx_drops;
3036 adapter->dev_stats.tx_drops = tx_drops;
3040 * This handler will called for unknown event group or unimplemented handlers
3042 static void unimplemented_aenq_handler(__rte_unused void *data,
3043 __rte_unused struct ena_admin_aenq_entry *aenq_e)
3046 "Unknown event was received or event with unimplemented handler\n");
3049 static struct ena_aenq_handlers aenq_handlers = {
3051 [ENA_ADMIN_LINK_CHANGE] = ena_update_on_link_change,
3052 [ENA_ADMIN_NOTIFICATION] = ena_notification,
3053 [ENA_ADMIN_KEEP_ALIVE] = ena_keep_alive
3055 .unimplemented_handler = unimplemented_aenq_handler