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 <rte_version.h>
10 #include <rte_kvargs.h>
12 #include "ena_ethdev.h"
14 #include "ena_platform.h"
16 #include "ena_eth_com.h"
18 #include <ena_common_defs.h>
19 #include <ena_regs_defs.h>
20 #include <ena_admin_defs.h>
21 #include <ena_eth_io_defs.h>
23 #define DRV_MODULE_VER_MAJOR 2
24 #define DRV_MODULE_VER_MINOR 4
25 #define DRV_MODULE_VER_SUBMINOR 0
27 #define __MERGE_64B_H_L(h, l) (((uint64_t)h << 32) | l)
29 #define GET_L4_HDR_LEN(mbuf) \
30 ((rte_pktmbuf_mtod_offset(mbuf, struct rte_tcp_hdr *, \
31 mbuf->l3_len + mbuf->l2_len)->data_off) >> 4)
33 #define ETH_GSTRING_LEN 32
35 #define ARRAY_SIZE(x) RTE_DIM(x)
37 #define ENA_MIN_RING_DESC 128
39 #define ENA_PTYPE_HAS_HASH (RTE_PTYPE_L4_TCP | RTE_PTYPE_L4_UDP)
41 enum ethtool_stringset {
47 char name[ETH_GSTRING_LEN];
51 #define ENA_STAT_ENTRY(stat, stat_type) { \
53 .stat_offset = offsetof(struct ena_stats_##stat_type, stat) \
56 #define ENA_STAT_RX_ENTRY(stat) \
57 ENA_STAT_ENTRY(stat, rx)
59 #define ENA_STAT_TX_ENTRY(stat) \
60 ENA_STAT_ENTRY(stat, tx)
62 #define ENA_STAT_ENI_ENTRY(stat) \
63 ENA_STAT_ENTRY(stat, eni)
65 #define ENA_STAT_GLOBAL_ENTRY(stat) \
66 ENA_STAT_ENTRY(stat, dev)
68 /* Device arguments */
69 #define ENA_DEVARG_LARGE_LLQ_HDR "large_llq_hdr"
72 * Each rte_memzone should have unique name.
73 * To satisfy it, count number of allocation and add it to name.
75 rte_atomic64_t ena_alloc_cnt;
77 static const struct ena_stats ena_stats_global_strings[] = {
78 ENA_STAT_GLOBAL_ENTRY(wd_expired),
79 ENA_STAT_GLOBAL_ENTRY(dev_start),
80 ENA_STAT_GLOBAL_ENTRY(dev_stop),
81 ENA_STAT_GLOBAL_ENTRY(tx_drops),
84 static const struct ena_stats ena_stats_eni_strings[] = {
85 ENA_STAT_ENI_ENTRY(bw_in_allowance_exceeded),
86 ENA_STAT_ENI_ENTRY(bw_out_allowance_exceeded),
87 ENA_STAT_ENI_ENTRY(pps_allowance_exceeded),
88 ENA_STAT_ENI_ENTRY(conntrack_allowance_exceeded),
89 ENA_STAT_ENI_ENTRY(linklocal_allowance_exceeded),
92 static const struct ena_stats ena_stats_tx_strings[] = {
93 ENA_STAT_TX_ENTRY(cnt),
94 ENA_STAT_TX_ENTRY(bytes),
95 ENA_STAT_TX_ENTRY(prepare_ctx_err),
96 ENA_STAT_TX_ENTRY(linearize),
97 ENA_STAT_TX_ENTRY(linearize_failed),
98 ENA_STAT_TX_ENTRY(tx_poll),
99 ENA_STAT_TX_ENTRY(doorbells),
100 ENA_STAT_TX_ENTRY(bad_req_id),
101 ENA_STAT_TX_ENTRY(available_desc),
104 static const struct ena_stats ena_stats_rx_strings[] = {
105 ENA_STAT_RX_ENTRY(cnt),
106 ENA_STAT_RX_ENTRY(bytes),
107 ENA_STAT_RX_ENTRY(refill_partial),
108 ENA_STAT_RX_ENTRY(bad_csum),
109 ENA_STAT_RX_ENTRY(mbuf_alloc_fail),
110 ENA_STAT_RX_ENTRY(bad_desc_num),
111 ENA_STAT_RX_ENTRY(bad_req_id),
114 #define ENA_STATS_ARRAY_GLOBAL ARRAY_SIZE(ena_stats_global_strings)
115 #define ENA_STATS_ARRAY_ENI ARRAY_SIZE(ena_stats_eni_strings)
116 #define ENA_STATS_ARRAY_TX ARRAY_SIZE(ena_stats_tx_strings)
117 #define ENA_STATS_ARRAY_RX ARRAY_SIZE(ena_stats_rx_strings)
119 #define QUEUE_OFFLOADS (DEV_TX_OFFLOAD_TCP_CKSUM |\
120 DEV_TX_OFFLOAD_UDP_CKSUM |\
121 DEV_TX_OFFLOAD_IPV4_CKSUM |\
122 DEV_TX_OFFLOAD_TCP_TSO)
123 #define MBUF_OFFLOADS (PKT_TX_L4_MASK |\
127 /** Vendor ID used by Amazon devices */
128 #define PCI_VENDOR_ID_AMAZON 0x1D0F
129 /** Amazon devices */
130 #define PCI_DEVICE_ID_ENA_VF 0xEC20
131 #define PCI_DEVICE_ID_ENA_VF_RSERV0 0xEC21
133 #define ENA_TX_OFFLOAD_MASK (\
140 #define ENA_TX_OFFLOAD_NOTSUP_MASK \
141 (PKT_TX_OFFLOAD_MASK ^ ENA_TX_OFFLOAD_MASK)
143 static const struct rte_pci_id pci_id_ena_map[] = {
144 { RTE_PCI_DEVICE(PCI_VENDOR_ID_AMAZON, PCI_DEVICE_ID_ENA_VF) },
145 { RTE_PCI_DEVICE(PCI_VENDOR_ID_AMAZON, PCI_DEVICE_ID_ENA_VF_RSERV0) },
149 static struct ena_aenq_handlers aenq_handlers;
151 static int ena_device_init(struct ena_com_dev *ena_dev,
152 struct rte_pci_device *pdev,
153 struct ena_com_dev_get_features_ctx *get_feat_ctx,
155 static int ena_dev_configure(struct rte_eth_dev *dev);
156 static void ena_tx_map_mbuf(struct ena_ring *tx_ring,
157 struct ena_tx_buffer *tx_info,
158 struct rte_mbuf *mbuf,
160 uint16_t *header_len);
161 static int ena_xmit_mbuf(struct ena_ring *tx_ring, struct rte_mbuf *mbuf);
162 static void ena_tx_cleanup(struct ena_ring *tx_ring);
163 static uint16_t eth_ena_xmit_pkts(void *tx_queue, struct rte_mbuf **tx_pkts,
165 static uint16_t eth_ena_prep_pkts(void *tx_queue, struct rte_mbuf **tx_pkts,
167 static int ena_tx_queue_setup(struct rte_eth_dev *dev, uint16_t queue_idx,
168 uint16_t nb_desc, unsigned int socket_id,
169 const struct rte_eth_txconf *tx_conf);
170 static int ena_rx_queue_setup(struct rte_eth_dev *dev, uint16_t queue_idx,
171 uint16_t nb_desc, unsigned int socket_id,
172 const struct rte_eth_rxconf *rx_conf,
173 struct rte_mempool *mp);
174 static inline void ena_init_rx_mbuf(struct rte_mbuf *mbuf, uint16_t len);
175 static struct rte_mbuf *ena_rx_mbuf(struct ena_ring *rx_ring,
176 struct ena_com_rx_buf_info *ena_bufs,
178 uint16_t *next_to_clean,
180 static uint16_t eth_ena_recv_pkts(void *rx_queue,
181 struct rte_mbuf **rx_pkts, uint16_t nb_pkts);
182 static int ena_add_single_rx_desc(struct ena_com_io_sq *io_sq,
183 struct rte_mbuf *mbuf, uint16_t id);
184 static int ena_populate_rx_queue(struct ena_ring *rxq, unsigned int count);
185 static void ena_init_rings(struct ena_adapter *adapter,
186 bool disable_meta_caching);
187 static int ena_mtu_set(struct rte_eth_dev *dev, uint16_t mtu);
188 static int ena_start(struct rte_eth_dev *dev);
189 static int ena_stop(struct rte_eth_dev *dev);
190 static int ena_close(struct rte_eth_dev *dev);
191 static int ena_dev_reset(struct rte_eth_dev *dev);
192 static int ena_stats_get(struct rte_eth_dev *dev, struct rte_eth_stats *stats);
193 static void ena_rx_queue_release_all(struct rte_eth_dev *dev);
194 static void ena_tx_queue_release_all(struct rte_eth_dev *dev);
195 static void ena_rx_queue_release(struct rte_eth_dev *dev, uint16_t qid);
196 static void ena_tx_queue_release(struct rte_eth_dev *dev, uint16_t qid);
197 static void ena_rx_queue_release_bufs(struct ena_ring *ring);
198 static void ena_tx_queue_release_bufs(struct ena_ring *ring);
199 static int ena_link_update(struct rte_eth_dev *dev,
200 int wait_to_complete);
201 static int ena_create_io_queue(struct rte_eth_dev *dev, struct ena_ring *ring);
202 static void ena_queue_stop(struct ena_ring *ring);
203 static void ena_queue_stop_all(struct rte_eth_dev *dev,
204 enum ena_ring_type ring_type);
205 static int ena_queue_start(struct rte_eth_dev *dev, struct ena_ring *ring);
206 static int ena_queue_start_all(struct rte_eth_dev *dev,
207 enum ena_ring_type ring_type);
208 static void ena_stats_restart(struct rte_eth_dev *dev);
209 static int ena_infos_get(struct rte_eth_dev *dev,
210 struct rte_eth_dev_info *dev_info);
211 static void ena_interrupt_handler_rte(void *cb_arg);
212 static void ena_timer_wd_callback(struct rte_timer *timer, void *arg);
213 static void ena_destroy_device(struct rte_eth_dev *eth_dev);
214 static int eth_ena_dev_init(struct rte_eth_dev *eth_dev);
215 static int ena_xstats_get_names(struct rte_eth_dev *dev,
216 struct rte_eth_xstat_name *xstats_names,
218 static int ena_xstats_get(struct rte_eth_dev *dev,
219 struct rte_eth_xstat *stats,
221 static int ena_xstats_get_by_id(struct rte_eth_dev *dev,
225 static int ena_process_bool_devarg(const char *key,
228 static int ena_parse_devargs(struct ena_adapter *adapter,
229 struct rte_devargs *devargs);
230 static int ena_copy_eni_stats(struct ena_adapter *adapter);
231 static int ena_setup_rx_intr(struct rte_eth_dev *dev);
232 static int ena_rx_queue_intr_enable(struct rte_eth_dev *dev,
234 static int ena_rx_queue_intr_disable(struct rte_eth_dev *dev,
237 static const struct eth_dev_ops ena_dev_ops = {
238 .dev_configure = ena_dev_configure,
239 .dev_infos_get = ena_infos_get,
240 .rx_queue_setup = ena_rx_queue_setup,
241 .tx_queue_setup = ena_tx_queue_setup,
242 .dev_start = ena_start,
243 .dev_stop = ena_stop,
244 .link_update = ena_link_update,
245 .stats_get = ena_stats_get,
246 .xstats_get_names = ena_xstats_get_names,
247 .xstats_get = ena_xstats_get,
248 .xstats_get_by_id = ena_xstats_get_by_id,
249 .mtu_set = ena_mtu_set,
250 .rx_queue_release = ena_rx_queue_release,
251 .tx_queue_release = ena_tx_queue_release,
252 .dev_close = ena_close,
253 .dev_reset = ena_dev_reset,
254 .reta_update = ena_rss_reta_update,
255 .reta_query = ena_rss_reta_query,
256 .rx_queue_intr_enable = ena_rx_queue_intr_enable,
257 .rx_queue_intr_disable = ena_rx_queue_intr_disable,
258 .rss_hash_update = ena_rss_hash_update,
259 .rss_hash_conf_get = ena_rss_hash_conf_get,
262 static inline void ena_rx_mbuf_prepare(struct rte_mbuf *mbuf,
263 struct ena_com_rx_ctx *ena_rx_ctx,
266 uint64_t ol_flags = 0;
267 uint32_t packet_type = 0;
269 if (ena_rx_ctx->l4_proto == ENA_ETH_IO_L4_PROTO_TCP)
270 packet_type |= RTE_PTYPE_L4_TCP;
271 else if (ena_rx_ctx->l4_proto == ENA_ETH_IO_L4_PROTO_UDP)
272 packet_type |= RTE_PTYPE_L4_UDP;
274 if (ena_rx_ctx->l3_proto == ENA_ETH_IO_L3_PROTO_IPV4) {
275 packet_type |= RTE_PTYPE_L3_IPV4;
276 if (unlikely(ena_rx_ctx->l3_csum_err))
277 ol_flags |= PKT_RX_IP_CKSUM_BAD;
279 ol_flags |= PKT_RX_IP_CKSUM_GOOD;
280 } else if (ena_rx_ctx->l3_proto == ENA_ETH_IO_L3_PROTO_IPV6) {
281 packet_type |= RTE_PTYPE_L3_IPV6;
284 if (!ena_rx_ctx->l4_csum_checked || ena_rx_ctx->frag)
285 ol_flags |= PKT_RX_L4_CKSUM_UNKNOWN;
287 if (unlikely(ena_rx_ctx->l4_csum_err))
288 ol_flags |= PKT_RX_L4_CKSUM_BAD;
290 ol_flags |= PKT_RX_L4_CKSUM_GOOD;
293 likely((packet_type & ENA_PTYPE_HAS_HASH) && !ena_rx_ctx->frag)) {
294 ol_flags |= PKT_RX_RSS_HASH;
295 mbuf->hash.rss = ena_rx_ctx->hash;
298 mbuf->ol_flags = ol_flags;
299 mbuf->packet_type = packet_type;
302 static inline void ena_tx_mbuf_prepare(struct rte_mbuf *mbuf,
303 struct ena_com_tx_ctx *ena_tx_ctx,
304 uint64_t queue_offloads,
305 bool disable_meta_caching)
307 struct ena_com_tx_meta *ena_meta = &ena_tx_ctx->ena_meta;
309 if ((mbuf->ol_flags & MBUF_OFFLOADS) &&
310 (queue_offloads & QUEUE_OFFLOADS)) {
311 /* check if TSO is required */
312 if ((mbuf->ol_flags & PKT_TX_TCP_SEG) &&
313 (queue_offloads & DEV_TX_OFFLOAD_TCP_TSO)) {
314 ena_tx_ctx->tso_enable = true;
316 ena_meta->l4_hdr_len = GET_L4_HDR_LEN(mbuf);
319 /* check if L3 checksum is needed */
320 if ((mbuf->ol_flags & PKT_TX_IP_CKSUM) &&
321 (queue_offloads & DEV_TX_OFFLOAD_IPV4_CKSUM))
322 ena_tx_ctx->l3_csum_enable = true;
324 if (mbuf->ol_flags & PKT_TX_IPV6) {
325 ena_tx_ctx->l3_proto = ENA_ETH_IO_L3_PROTO_IPV6;
327 ena_tx_ctx->l3_proto = ENA_ETH_IO_L3_PROTO_IPV4;
329 /* set don't fragment (DF) flag */
330 if (mbuf->packet_type &
331 (RTE_PTYPE_L4_NONFRAG
332 | RTE_PTYPE_INNER_L4_NONFRAG))
333 ena_tx_ctx->df = true;
336 /* check if L4 checksum is needed */
337 if (((mbuf->ol_flags & PKT_TX_L4_MASK) == PKT_TX_TCP_CKSUM) &&
338 (queue_offloads & DEV_TX_OFFLOAD_TCP_CKSUM)) {
339 ena_tx_ctx->l4_proto = ENA_ETH_IO_L4_PROTO_TCP;
340 ena_tx_ctx->l4_csum_enable = true;
341 } else if (((mbuf->ol_flags & PKT_TX_L4_MASK) ==
343 (queue_offloads & DEV_TX_OFFLOAD_UDP_CKSUM)) {
344 ena_tx_ctx->l4_proto = ENA_ETH_IO_L4_PROTO_UDP;
345 ena_tx_ctx->l4_csum_enable = true;
347 ena_tx_ctx->l4_proto = ENA_ETH_IO_L4_PROTO_UNKNOWN;
348 ena_tx_ctx->l4_csum_enable = false;
351 ena_meta->mss = mbuf->tso_segsz;
352 ena_meta->l3_hdr_len = mbuf->l3_len;
353 ena_meta->l3_hdr_offset = mbuf->l2_len;
355 ena_tx_ctx->meta_valid = true;
356 } else if (disable_meta_caching) {
357 memset(ena_meta, 0, sizeof(*ena_meta));
358 ena_tx_ctx->meta_valid = true;
360 ena_tx_ctx->meta_valid = false;
364 static int validate_tx_req_id(struct ena_ring *tx_ring, u16 req_id)
366 struct ena_tx_buffer *tx_info = NULL;
368 if (likely(req_id < tx_ring->ring_size)) {
369 tx_info = &tx_ring->tx_buffer_info[req_id];
370 if (likely(tx_info->mbuf))
375 PMD_TX_LOG(ERR, "tx_info doesn't have valid mbuf\n");
377 PMD_TX_LOG(ERR, "Invalid req_id: %hu\n", req_id);
379 /* Trigger device reset */
380 ++tx_ring->tx_stats.bad_req_id;
381 tx_ring->adapter->reset_reason = ENA_REGS_RESET_INV_TX_REQ_ID;
382 tx_ring->adapter->trigger_reset = true;
386 static void ena_config_host_info(struct ena_com_dev *ena_dev)
388 struct ena_admin_host_info *host_info;
391 /* Allocate only the host info */
392 rc = ena_com_allocate_host_info(ena_dev);
394 PMD_DRV_LOG(ERR, "Cannot allocate host info\n");
398 host_info = ena_dev->host_attr.host_info;
400 host_info->os_type = ENA_ADMIN_OS_DPDK;
401 host_info->kernel_ver = RTE_VERSION;
402 strlcpy((char *)host_info->kernel_ver_str, rte_version(),
403 sizeof(host_info->kernel_ver_str));
404 host_info->os_dist = RTE_VERSION;
405 strlcpy((char *)host_info->os_dist_str, rte_version(),
406 sizeof(host_info->os_dist_str));
407 host_info->driver_version =
408 (DRV_MODULE_VER_MAJOR) |
409 (DRV_MODULE_VER_MINOR << ENA_ADMIN_HOST_INFO_MINOR_SHIFT) |
410 (DRV_MODULE_VER_SUBMINOR <<
411 ENA_ADMIN_HOST_INFO_SUB_MINOR_SHIFT);
412 host_info->num_cpus = rte_lcore_count();
414 host_info->driver_supported_features =
415 ENA_ADMIN_HOST_INFO_RX_OFFSET_MASK |
416 ENA_ADMIN_HOST_INFO_RSS_CONFIGURABLE_FUNCTION_KEY_MASK;
418 rc = ena_com_set_host_attributes(ena_dev);
420 if (rc == -ENA_COM_UNSUPPORTED)
421 PMD_DRV_LOG(WARNING, "Cannot set host attributes\n");
423 PMD_DRV_LOG(ERR, "Cannot set host attributes\n");
431 ena_com_delete_host_info(ena_dev);
434 /* This function calculates the number of xstats based on the current config */
435 static unsigned int ena_xstats_calc_num(struct rte_eth_dev_data *data)
437 return ENA_STATS_ARRAY_GLOBAL + ENA_STATS_ARRAY_ENI +
438 (data->nb_tx_queues * ENA_STATS_ARRAY_TX) +
439 (data->nb_rx_queues * ENA_STATS_ARRAY_RX);
442 static void ena_config_debug_area(struct ena_adapter *adapter)
447 ss_count = ena_xstats_calc_num(adapter->edev_data);
449 /* allocate 32 bytes for each string and 64bit for the value */
450 debug_area_size = ss_count * ETH_GSTRING_LEN + sizeof(u64) * ss_count;
452 rc = ena_com_allocate_debug_area(&adapter->ena_dev, debug_area_size);
454 PMD_DRV_LOG(ERR, "Cannot allocate debug area\n");
458 rc = ena_com_set_host_attributes(&adapter->ena_dev);
460 if (rc == -ENA_COM_UNSUPPORTED)
461 PMD_DRV_LOG(WARNING, "Cannot set host attributes\n");
463 PMD_DRV_LOG(ERR, "Cannot set host attributes\n");
470 ena_com_delete_debug_area(&adapter->ena_dev);
473 static int ena_close(struct rte_eth_dev *dev)
475 struct rte_pci_device *pci_dev = RTE_ETH_DEV_TO_PCI(dev);
476 struct rte_intr_handle *intr_handle = &pci_dev->intr_handle;
477 struct ena_adapter *adapter = dev->data->dev_private;
480 if (rte_eal_process_type() != RTE_PROC_PRIMARY)
483 if (adapter->state == ENA_ADAPTER_STATE_RUNNING)
485 adapter->state = ENA_ADAPTER_STATE_CLOSED;
487 ena_rx_queue_release_all(dev);
488 ena_tx_queue_release_all(dev);
490 rte_free(adapter->drv_stats);
491 adapter->drv_stats = NULL;
493 rte_intr_disable(intr_handle);
494 rte_intr_callback_unregister(intr_handle,
495 ena_interrupt_handler_rte,
499 * MAC is not allocated dynamically. Setting NULL should prevent from
500 * release of the resource in the rte_eth_dev_release_port().
502 dev->data->mac_addrs = NULL;
508 ena_dev_reset(struct rte_eth_dev *dev)
512 /* Cannot release memory in secondary process */
513 if (rte_eal_process_type() != RTE_PROC_PRIMARY) {
514 PMD_DRV_LOG(WARNING, "dev_reset not supported in secondary.\n");
518 ena_destroy_device(dev);
519 rc = eth_ena_dev_init(dev);
521 PMD_INIT_LOG(CRIT, "Cannot initialize device\n");
526 static void ena_rx_queue_release_all(struct rte_eth_dev *dev)
528 int nb_queues = dev->data->nb_rx_queues;
531 for (i = 0; i < nb_queues; i++)
532 ena_rx_queue_release(dev, i);
535 static void ena_tx_queue_release_all(struct rte_eth_dev *dev)
537 int nb_queues = dev->data->nb_tx_queues;
540 for (i = 0; i < nb_queues; i++)
541 ena_tx_queue_release(dev, i);
544 static void ena_rx_queue_release(struct rte_eth_dev *dev, uint16_t qid)
546 struct ena_ring *ring = dev->data->rx_queues[qid];
548 /* Free ring resources */
549 if (ring->rx_buffer_info)
550 rte_free(ring->rx_buffer_info);
551 ring->rx_buffer_info = NULL;
553 if (ring->rx_refill_buffer)
554 rte_free(ring->rx_refill_buffer);
555 ring->rx_refill_buffer = NULL;
557 if (ring->empty_rx_reqs)
558 rte_free(ring->empty_rx_reqs);
559 ring->empty_rx_reqs = NULL;
561 ring->configured = 0;
563 PMD_DRV_LOG(NOTICE, "Rx queue %d:%d released\n",
564 ring->port_id, ring->id);
567 static void ena_tx_queue_release(struct rte_eth_dev *dev, uint16_t qid)
569 struct ena_ring *ring = dev->data->tx_queues[qid];
571 /* Free ring resources */
572 if (ring->push_buf_intermediate_buf)
573 rte_free(ring->push_buf_intermediate_buf);
575 if (ring->tx_buffer_info)
576 rte_free(ring->tx_buffer_info);
578 if (ring->empty_tx_reqs)
579 rte_free(ring->empty_tx_reqs);
581 ring->empty_tx_reqs = NULL;
582 ring->tx_buffer_info = NULL;
583 ring->push_buf_intermediate_buf = NULL;
585 ring->configured = 0;
587 PMD_DRV_LOG(NOTICE, "Tx queue %d:%d released\n",
588 ring->port_id, ring->id);
591 static void ena_rx_queue_release_bufs(struct ena_ring *ring)
595 for (i = 0; i < ring->ring_size; ++i) {
596 struct ena_rx_buffer *rx_info = &ring->rx_buffer_info[i];
598 rte_mbuf_raw_free(rx_info->mbuf);
599 rx_info->mbuf = NULL;
604 static void ena_tx_queue_release_bufs(struct ena_ring *ring)
608 for (i = 0; i < ring->ring_size; ++i) {
609 struct ena_tx_buffer *tx_buf = &ring->tx_buffer_info[i];
612 rte_pktmbuf_free(tx_buf->mbuf);
618 static int ena_link_update(struct rte_eth_dev *dev,
619 __rte_unused int wait_to_complete)
621 struct rte_eth_link *link = &dev->data->dev_link;
622 struct ena_adapter *adapter = dev->data->dev_private;
624 link->link_status = adapter->link_status ? ETH_LINK_UP : ETH_LINK_DOWN;
625 link->link_speed = ETH_SPEED_NUM_NONE;
626 link->link_duplex = ETH_LINK_FULL_DUPLEX;
631 static int ena_queue_start_all(struct rte_eth_dev *dev,
632 enum ena_ring_type ring_type)
634 struct ena_adapter *adapter = dev->data->dev_private;
635 struct ena_ring *queues = NULL;
640 if (ring_type == ENA_RING_TYPE_RX) {
641 queues = adapter->rx_ring;
642 nb_queues = dev->data->nb_rx_queues;
644 queues = adapter->tx_ring;
645 nb_queues = dev->data->nb_tx_queues;
647 for (i = 0; i < nb_queues; i++) {
648 if (queues[i].configured) {
649 if (ring_type == ENA_RING_TYPE_RX) {
651 dev->data->rx_queues[i] == &queues[i],
652 "Inconsistent state of Rx queues\n");
655 dev->data->tx_queues[i] == &queues[i],
656 "Inconsistent state of Tx queues\n");
659 rc = ena_queue_start(dev, &queues[i]);
663 "Failed to start queue[%d] of type(%d)\n",
674 if (queues[i].configured)
675 ena_queue_stop(&queues[i]);
680 static int ena_check_valid_conf(struct ena_adapter *adapter)
682 uint32_t mtu = adapter->edev_data->mtu;
684 if (mtu > adapter->max_mtu || mtu < ENA_MIN_MTU) {
686 "Unsupported MTU of %d. Max MTU: %d, min MTU: %d\n",
687 mtu, adapter->max_mtu, ENA_MIN_MTU);
688 return ENA_COM_UNSUPPORTED;
695 ena_calc_io_queue_size(struct ena_calc_queue_size_ctx *ctx,
696 bool use_large_llq_hdr)
698 struct ena_admin_feature_llq_desc *llq = &ctx->get_feat_ctx->llq;
699 struct ena_com_dev *ena_dev = ctx->ena_dev;
700 uint32_t max_tx_queue_size;
701 uint32_t max_rx_queue_size;
703 if (ena_dev->supported_features & BIT(ENA_ADMIN_MAX_QUEUES_EXT)) {
704 struct ena_admin_queue_ext_feature_fields *max_queue_ext =
705 &ctx->get_feat_ctx->max_queue_ext.max_queue_ext;
706 max_rx_queue_size = RTE_MIN(max_queue_ext->max_rx_cq_depth,
707 max_queue_ext->max_rx_sq_depth);
708 max_tx_queue_size = max_queue_ext->max_tx_cq_depth;
710 if (ena_dev->tx_mem_queue_type ==
711 ENA_ADMIN_PLACEMENT_POLICY_DEV) {
712 max_tx_queue_size = RTE_MIN(max_tx_queue_size,
715 max_tx_queue_size = RTE_MIN(max_tx_queue_size,
716 max_queue_ext->max_tx_sq_depth);
719 ctx->max_rx_sgl_size = RTE_MIN(ENA_PKT_MAX_BUFS,
720 max_queue_ext->max_per_packet_rx_descs);
721 ctx->max_tx_sgl_size = RTE_MIN(ENA_PKT_MAX_BUFS,
722 max_queue_ext->max_per_packet_tx_descs);
724 struct ena_admin_queue_feature_desc *max_queues =
725 &ctx->get_feat_ctx->max_queues;
726 max_rx_queue_size = RTE_MIN(max_queues->max_cq_depth,
727 max_queues->max_sq_depth);
728 max_tx_queue_size = max_queues->max_cq_depth;
730 if (ena_dev->tx_mem_queue_type ==
731 ENA_ADMIN_PLACEMENT_POLICY_DEV) {
732 max_tx_queue_size = RTE_MIN(max_tx_queue_size,
735 max_tx_queue_size = RTE_MIN(max_tx_queue_size,
736 max_queues->max_sq_depth);
739 ctx->max_rx_sgl_size = RTE_MIN(ENA_PKT_MAX_BUFS,
740 max_queues->max_packet_rx_descs);
741 ctx->max_tx_sgl_size = RTE_MIN(ENA_PKT_MAX_BUFS,
742 max_queues->max_packet_tx_descs);
745 /* Round down to the nearest power of 2 */
746 max_rx_queue_size = rte_align32prevpow2(max_rx_queue_size);
747 max_tx_queue_size = rte_align32prevpow2(max_tx_queue_size);
749 if (use_large_llq_hdr) {
750 if ((llq->entry_size_ctrl_supported &
751 ENA_ADMIN_LIST_ENTRY_SIZE_256B) &&
752 (ena_dev->tx_mem_queue_type ==
753 ENA_ADMIN_PLACEMENT_POLICY_DEV)) {
754 max_tx_queue_size /= 2;
756 "Forcing large headers and decreasing maximum Tx queue size to %d\n",
760 "Forcing large headers failed: LLQ is disabled or device does not support large headers\n");
764 if (unlikely(max_rx_queue_size == 0 || max_tx_queue_size == 0)) {
765 PMD_INIT_LOG(ERR, "Invalid queue size\n");
769 ctx->max_tx_queue_size = max_tx_queue_size;
770 ctx->max_rx_queue_size = max_rx_queue_size;
775 static void ena_stats_restart(struct rte_eth_dev *dev)
777 struct ena_adapter *adapter = dev->data->dev_private;
779 rte_atomic64_init(&adapter->drv_stats->ierrors);
780 rte_atomic64_init(&adapter->drv_stats->oerrors);
781 rte_atomic64_init(&adapter->drv_stats->rx_nombuf);
782 adapter->drv_stats->rx_drops = 0;
785 static int ena_stats_get(struct rte_eth_dev *dev,
786 struct rte_eth_stats *stats)
788 struct ena_admin_basic_stats ena_stats;
789 struct ena_adapter *adapter = dev->data->dev_private;
790 struct ena_com_dev *ena_dev = &adapter->ena_dev;
795 if (rte_eal_process_type() != RTE_PROC_PRIMARY)
798 memset(&ena_stats, 0, sizeof(ena_stats));
800 rte_spinlock_lock(&adapter->admin_lock);
801 rc = ena_com_get_dev_basic_stats(ena_dev, &ena_stats);
802 rte_spinlock_unlock(&adapter->admin_lock);
804 PMD_DRV_LOG(ERR, "Could not retrieve statistics from ENA\n");
808 /* Set of basic statistics from ENA */
809 stats->ipackets = __MERGE_64B_H_L(ena_stats.rx_pkts_high,
810 ena_stats.rx_pkts_low);
811 stats->opackets = __MERGE_64B_H_L(ena_stats.tx_pkts_high,
812 ena_stats.tx_pkts_low);
813 stats->ibytes = __MERGE_64B_H_L(ena_stats.rx_bytes_high,
814 ena_stats.rx_bytes_low);
815 stats->obytes = __MERGE_64B_H_L(ena_stats.tx_bytes_high,
816 ena_stats.tx_bytes_low);
818 /* Driver related stats */
819 stats->imissed = adapter->drv_stats->rx_drops;
820 stats->ierrors = rte_atomic64_read(&adapter->drv_stats->ierrors);
821 stats->oerrors = rte_atomic64_read(&adapter->drv_stats->oerrors);
822 stats->rx_nombuf = rte_atomic64_read(&adapter->drv_stats->rx_nombuf);
824 max_rings_stats = RTE_MIN(dev->data->nb_rx_queues,
825 RTE_ETHDEV_QUEUE_STAT_CNTRS);
826 for (i = 0; i < max_rings_stats; ++i) {
827 struct ena_stats_rx *rx_stats = &adapter->rx_ring[i].rx_stats;
829 stats->q_ibytes[i] = rx_stats->bytes;
830 stats->q_ipackets[i] = rx_stats->cnt;
831 stats->q_errors[i] = rx_stats->bad_desc_num +
832 rx_stats->bad_req_id;
835 max_rings_stats = RTE_MIN(dev->data->nb_tx_queues,
836 RTE_ETHDEV_QUEUE_STAT_CNTRS);
837 for (i = 0; i < max_rings_stats; ++i) {
838 struct ena_stats_tx *tx_stats = &adapter->tx_ring[i].tx_stats;
840 stats->q_obytes[i] = tx_stats->bytes;
841 stats->q_opackets[i] = tx_stats->cnt;
847 static int ena_mtu_set(struct rte_eth_dev *dev, uint16_t mtu)
849 struct ena_adapter *adapter;
850 struct ena_com_dev *ena_dev;
853 ena_assert_msg(dev->data != NULL, "Uninitialized device\n");
854 ena_assert_msg(dev->data->dev_private != NULL, "Uninitialized device\n");
855 adapter = dev->data->dev_private;
857 ena_dev = &adapter->ena_dev;
858 ena_assert_msg(ena_dev != NULL, "Uninitialized device\n");
860 if (mtu > adapter->max_mtu || mtu < ENA_MIN_MTU) {
862 "Invalid MTU setting. New MTU: %d, max MTU: %d, min MTU: %d\n",
863 mtu, adapter->max_mtu, ENA_MIN_MTU);
867 rc = ena_com_set_dev_mtu(ena_dev, mtu);
869 PMD_DRV_LOG(ERR, "Could not set MTU: %d\n", mtu);
871 PMD_DRV_LOG(NOTICE, "MTU set to: %d\n", mtu);
876 static int ena_start(struct rte_eth_dev *dev)
878 struct ena_adapter *adapter = dev->data->dev_private;
882 /* Cannot allocate memory in secondary process */
883 if (rte_eal_process_type() != RTE_PROC_PRIMARY) {
884 PMD_DRV_LOG(WARNING, "dev_start not supported in secondary.\n");
888 rc = ena_check_valid_conf(adapter);
892 rc = ena_setup_rx_intr(dev);
896 rc = ena_queue_start_all(dev, ENA_RING_TYPE_RX);
900 rc = ena_queue_start_all(dev, ENA_RING_TYPE_TX);
904 if (adapter->edev_data->dev_conf.rxmode.mq_mode & ETH_MQ_RX_RSS_FLAG) {
905 rc = ena_rss_configure(adapter);
910 ena_stats_restart(dev);
912 adapter->timestamp_wd = rte_get_timer_cycles();
913 adapter->keep_alive_timeout = ENA_DEVICE_KALIVE_TIMEOUT;
915 ticks = rte_get_timer_hz();
916 rte_timer_reset(&adapter->timer_wd, ticks, PERIODICAL, rte_lcore_id(),
917 ena_timer_wd_callback, dev);
919 ++adapter->dev_stats.dev_start;
920 adapter->state = ENA_ADAPTER_STATE_RUNNING;
925 ena_queue_stop_all(dev, ENA_RING_TYPE_TX);
927 ena_queue_stop_all(dev, ENA_RING_TYPE_RX);
931 static int ena_stop(struct rte_eth_dev *dev)
933 struct ena_adapter *adapter = dev->data->dev_private;
934 struct ena_com_dev *ena_dev = &adapter->ena_dev;
935 struct rte_pci_device *pci_dev = RTE_ETH_DEV_TO_PCI(dev);
936 struct rte_intr_handle *intr_handle = &pci_dev->intr_handle;
939 /* Cannot free memory in secondary process */
940 if (rte_eal_process_type() != RTE_PROC_PRIMARY) {
941 PMD_DRV_LOG(WARNING, "dev_stop not supported in secondary.\n");
945 rte_timer_stop_sync(&adapter->timer_wd);
946 ena_queue_stop_all(dev, ENA_RING_TYPE_TX);
947 ena_queue_stop_all(dev, ENA_RING_TYPE_RX);
949 if (adapter->trigger_reset) {
950 rc = ena_com_dev_reset(ena_dev, adapter->reset_reason);
952 PMD_DRV_LOG(ERR, "Device reset failed, rc: %d\n", rc);
955 rte_intr_disable(intr_handle);
957 rte_intr_efd_disable(intr_handle);
958 if (intr_handle->intr_vec != NULL) {
959 rte_free(intr_handle->intr_vec);
960 intr_handle->intr_vec = NULL;
963 rte_intr_enable(intr_handle);
965 ++adapter->dev_stats.dev_stop;
966 adapter->state = ENA_ADAPTER_STATE_STOPPED;
967 dev->data->dev_started = 0;
972 static int ena_create_io_queue(struct rte_eth_dev *dev, struct ena_ring *ring)
974 struct ena_adapter *adapter = ring->adapter;
975 struct ena_com_dev *ena_dev = &adapter->ena_dev;
976 struct rte_pci_device *pci_dev = RTE_ETH_DEV_TO_PCI(dev);
977 struct rte_intr_handle *intr_handle = &pci_dev->intr_handle;
978 struct ena_com_create_io_ctx ctx =
979 /* policy set to _HOST just to satisfy icc compiler */
980 { ENA_ADMIN_PLACEMENT_POLICY_HOST,
986 ctx.msix_vector = -1;
987 if (ring->type == ENA_RING_TYPE_TX) {
988 ena_qid = ENA_IO_TXQ_IDX(ring->id);
989 ctx.direction = ENA_COM_IO_QUEUE_DIRECTION_TX;
990 ctx.mem_queue_type = ena_dev->tx_mem_queue_type;
991 for (i = 0; i < ring->ring_size; i++)
992 ring->empty_tx_reqs[i] = i;
994 ena_qid = ENA_IO_RXQ_IDX(ring->id);
995 ctx.direction = ENA_COM_IO_QUEUE_DIRECTION_RX;
996 if (rte_intr_dp_is_en(intr_handle))
997 ctx.msix_vector = intr_handle->intr_vec[ring->id];
998 for (i = 0; i < ring->ring_size; i++)
999 ring->empty_rx_reqs[i] = i;
1001 ctx.queue_size = ring->ring_size;
1003 ctx.numa_node = ring->numa_socket_id;
1005 rc = ena_com_create_io_queue(ena_dev, &ctx);
1008 "Failed to create IO queue[%d] (qid:%d), rc: %d\n",
1009 ring->id, ena_qid, rc);
1013 rc = ena_com_get_io_handlers(ena_dev, ena_qid,
1014 &ring->ena_com_io_sq,
1015 &ring->ena_com_io_cq);
1018 "Failed to get IO queue[%d] handlers, rc: %d\n",
1020 ena_com_destroy_io_queue(ena_dev, ena_qid);
1024 if (ring->type == ENA_RING_TYPE_TX)
1025 ena_com_update_numa_node(ring->ena_com_io_cq, ctx.numa_node);
1027 /* Start with Rx interrupts being masked. */
1028 if (ring->type == ENA_RING_TYPE_RX && rte_intr_dp_is_en(intr_handle))
1029 ena_rx_queue_intr_disable(dev, ring->id);
1034 static void ena_queue_stop(struct ena_ring *ring)
1036 struct ena_com_dev *ena_dev = &ring->adapter->ena_dev;
1038 if (ring->type == ENA_RING_TYPE_RX) {
1039 ena_com_destroy_io_queue(ena_dev, ENA_IO_RXQ_IDX(ring->id));
1040 ena_rx_queue_release_bufs(ring);
1042 ena_com_destroy_io_queue(ena_dev, ENA_IO_TXQ_IDX(ring->id));
1043 ena_tx_queue_release_bufs(ring);
1047 static void ena_queue_stop_all(struct rte_eth_dev *dev,
1048 enum ena_ring_type ring_type)
1050 struct ena_adapter *adapter = dev->data->dev_private;
1051 struct ena_ring *queues = NULL;
1052 uint16_t nb_queues, i;
1054 if (ring_type == ENA_RING_TYPE_RX) {
1055 queues = adapter->rx_ring;
1056 nb_queues = dev->data->nb_rx_queues;
1058 queues = adapter->tx_ring;
1059 nb_queues = dev->data->nb_tx_queues;
1062 for (i = 0; i < nb_queues; ++i)
1063 if (queues[i].configured)
1064 ena_queue_stop(&queues[i]);
1067 static int ena_queue_start(struct rte_eth_dev *dev, struct ena_ring *ring)
1071 ena_assert_msg(ring->configured == 1,
1072 "Trying to start unconfigured queue\n");
1074 rc = ena_create_io_queue(dev, ring);
1076 PMD_INIT_LOG(ERR, "Failed to create IO queue\n");
1080 ring->next_to_clean = 0;
1081 ring->next_to_use = 0;
1083 if (ring->type == ENA_RING_TYPE_TX) {
1084 ring->tx_stats.available_desc =
1085 ena_com_free_q_entries(ring->ena_com_io_sq);
1089 bufs_num = ring->ring_size - 1;
1090 rc = ena_populate_rx_queue(ring, bufs_num);
1091 if (rc != bufs_num) {
1092 ena_com_destroy_io_queue(&ring->adapter->ena_dev,
1093 ENA_IO_RXQ_IDX(ring->id));
1094 PMD_INIT_LOG(ERR, "Failed to populate Rx ring\n");
1095 return ENA_COM_FAULT;
1097 /* Flush per-core RX buffers pools cache as they can be used on other
1100 rte_mempool_cache_flush(NULL, ring->mb_pool);
1105 static int ena_tx_queue_setup(struct rte_eth_dev *dev,
1108 unsigned int socket_id,
1109 const struct rte_eth_txconf *tx_conf)
1111 struct ena_ring *txq = NULL;
1112 struct ena_adapter *adapter = dev->data->dev_private;
1115 txq = &adapter->tx_ring[queue_idx];
1117 if (txq->configured) {
1119 "API violation. Queue[%d] is already configured\n",
1121 return ENA_COM_FAULT;
1124 if (!rte_is_power_of_2(nb_desc)) {
1126 "Unsupported size of Tx queue: %d is not a power of 2.\n",
1131 if (nb_desc > adapter->max_tx_ring_size) {
1133 "Unsupported size of Tx queue (max size: %d)\n",
1134 adapter->max_tx_ring_size);
1138 txq->port_id = dev->data->port_id;
1139 txq->next_to_clean = 0;
1140 txq->next_to_use = 0;
1141 txq->ring_size = nb_desc;
1142 txq->size_mask = nb_desc - 1;
1143 txq->numa_socket_id = socket_id;
1144 txq->pkts_without_db = false;
1146 txq->tx_buffer_info = rte_zmalloc("txq->tx_buffer_info",
1147 sizeof(struct ena_tx_buffer) *
1149 RTE_CACHE_LINE_SIZE);
1150 if (!txq->tx_buffer_info) {
1152 "Failed to allocate memory for Tx buffer info\n");
1156 txq->empty_tx_reqs = rte_zmalloc("txq->empty_tx_reqs",
1157 sizeof(u16) * txq->ring_size,
1158 RTE_CACHE_LINE_SIZE);
1159 if (!txq->empty_tx_reqs) {
1161 "Failed to allocate memory for empty Tx requests\n");
1162 rte_free(txq->tx_buffer_info);
1166 txq->push_buf_intermediate_buf =
1167 rte_zmalloc("txq->push_buf_intermediate_buf",
1168 txq->tx_max_header_size,
1169 RTE_CACHE_LINE_SIZE);
1170 if (!txq->push_buf_intermediate_buf) {
1171 PMD_DRV_LOG(ERR, "Failed to alloc push buffer for LLQ\n");
1172 rte_free(txq->tx_buffer_info);
1173 rte_free(txq->empty_tx_reqs);
1177 for (i = 0; i < txq->ring_size; i++)
1178 txq->empty_tx_reqs[i] = i;
1180 if (tx_conf != NULL) {
1182 tx_conf->offloads | dev->data->dev_conf.txmode.offloads;
1184 /* Store pointer to this queue in upper layer */
1185 txq->configured = 1;
1186 dev->data->tx_queues[queue_idx] = txq;
1191 static int ena_rx_queue_setup(struct rte_eth_dev *dev,
1194 unsigned int socket_id,
1195 const struct rte_eth_rxconf *rx_conf,
1196 struct rte_mempool *mp)
1198 struct ena_adapter *adapter = dev->data->dev_private;
1199 struct ena_ring *rxq = NULL;
1203 rxq = &adapter->rx_ring[queue_idx];
1204 if (rxq->configured) {
1206 "API violation. Queue[%d] is already configured\n",
1208 return ENA_COM_FAULT;
1211 if (!rte_is_power_of_2(nb_desc)) {
1213 "Unsupported size of Rx queue: %d is not a power of 2.\n",
1218 if (nb_desc > adapter->max_rx_ring_size) {
1220 "Unsupported size of Rx queue (max size: %d)\n",
1221 adapter->max_rx_ring_size);
1225 /* ENA isn't supporting buffers smaller than 1400 bytes */
1226 buffer_size = rte_pktmbuf_data_room_size(mp) - RTE_PKTMBUF_HEADROOM;
1227 if (buffer_size < ENA_RX_BUF_MIN_SIZE) {
1229 "Unsupported size of Rx buffer: %zu (min size: %d)\n",
1230 buffer_size, ENA_RX_BUF_MIN_SIZE);
1234 rxq->port_id = dev->data->port_id;
1235 rxq->next_to_clean = 0;
1236 rxq->next_to_use = 0;
1237 rxq->ring_size = nb_desc;
1238 rxq->size_mask = nb_desc - 1;
1239 rxq->numa_socket_id = socket_id;
1242 rxq->rx_buffer_info = rte_zmalloc("rxq->buffer_info",
1243 sizeof(struct ena_rx_buffer) * nb_desc,
1244 RTE_CACHE_LINE_SIZE);
1245 if (!rxq->rx_buffer_info) {
1247 "Failed to allocate memory for Rx buffer info\n");
1251 rxq->rx_refill_buffer = rte_zmalloc("rxq->rx_refill_buffer",
1252 sizeof(struct rte_mbuf *) * nb_desc,
1253 RTE_CACHE_LINE_SIZE);
1255 if (!rxq->rx_refill_buffer) {
1257 "Failed to allocate memory for Rx refill buffer\n");
1258 rte_free(rxq->rx_buffer_info);
1259 rxq->rx_buffer_info = NULL;
1263 rxq->empty_rx_reqs = rte_zmalloc("rxq->empty_rx_reqs",
1264 sizeof(uint16_t) * nb_desc,
1265 RTE_CACHE_LINE_SIZE);
1266 if (!rxq->empty_rx_reqs) {
1268 "Failed to allocate memory for empty Rx requests\n");
1269 rte_free(rxq->rx_buffer_info);
1270 rxq->rx_buffer_info = NULL;
1271 rte_free(rxq->rx_refill_buffer);
1272 rxq->rx_refill_buffer = NULL;
1276 for (i = 0; i < nb_desc; i++)
1277 rxq->empty_rx_reqs[i] = i;
1279 rxq->offloads = rx_conf->offloads | dev->data->dev_conf.rxmode.offloads;
1281 /* Store pointer to this queue in upper layer */
1282 rxq->configured = 1;
1283 dev->data->rx_queues[queue_idx] = rxq;
1288 static int ena_add_single_rx_desc(struct ena_com_io_sq *io_sq,
1289 struct rte_mbuf *mbuf, uint16_t id)
1291 struct ena_com_buf ebuf;
1294 /* prepare physical address for DMA transaction */
1295 ebuf.paddr = mbuf->buf_iova + RTE_PKTMBUF_HEADROOM;
1296 ebuf.len = mbuf->buf_len - RTE_PKTMBUF_HEADROOM;
1298 /* pass resource to device */
1299 rc = ena_com_add_single_rx_desc(io_sq, &ebuf, id);
1300 if (unlikely(rc != 0))
1301 PMD_RX_LOG(WARNING, "Failed adding Rx desc\n");
1306 static int ena_populate_rx_queue(struct ena_ring *rxq, unsigned int count)
1310 uint16_t next_to_use = rxq->next_to_use;
1312 #ifdef RTE_ETHDEV_DEBUG_RX
1315 struct rte_mbuf **mbufs = rxq->rx_refill_buffer;
1317 if (unlikely(!count))
1320 #ifdef RTE_ETHDEV_DEBUG_RX
1321 in_use = rxq->ring_size - 1 -
1322 ena_com_free_q_entries(rxq->ena_com_io_sq);
1323 if (unlikely((in_use + count) >= rxq->ring_size))
1324 PMD_RX_LOG(ERR, "Bad Rx ring state\n");
1327 /* get resources for incoming packets */
1328 rc = rte_pktmbuf_alloc_bulk(rxq->mb_pool, mbufs, count);
1329 if (unlikely(rc < 0)) {
1330 rte_atomic64_inc(&rxq->adapter->drv_stats->rx_nombuf);
1331 ++rxq->rx_stats.mbuf_alloc_fail;
1332 PMD_RX_LOG(DEBUG, "There are not enough free buffers\n");
1336 for (i = 0; i < count; i++) {
1337 struct rte_mbuf *mbuf = mbufs[i];
1338 struct ena_rx_buffer *rx_info;
1340 if (likely((i + 4) < count))
1341 rte_prefetch0(mbufs[i + 4]);
1343 req_id = rxq->empty_rx_reqs[next_to_use];
1344 rx_info = &rxq->rx_buffer_info[req_id];
1346 rc = ena_add_single_rx_desc(rxq->ena_com_io_sq, mbuf, req_id);
1347 if (unlikely(rc != 0))
1350 rx_info->mbuf = mbuf;
1351 next_to_use = ENA_IDX_NEXT_MASKED(next_to_use, rxq->size_mask);
1354 if (unlikely(i < count)) {
1356 "Refilled Rx queue[%d] with only %d/%d buffers\n",
1358 rte_pktmbuf_free_bulk(&mbufs[i], count - i);
1359 ++rxq->rx_stats.refill_partial;
1362 /* When we submitted free recources to device... */
1363 if (likely(i > 0)) {
1364 /* ...let HW know that it can fill buffers with data. */
1365 ena_com_write_sq_doorbell(rxq->ena_com_io_sq);
1367 rxq->next_to_use = next_to_use;
1373 static int ena_device_init(struct ena_com_dev *ena_dev,
1374 struct rte_pci_device *pdev,
1375 struct ena_com_dev_get_features_ctx *get_feat_ctx,
1378 uint32_t aenq_groups;
1380 bool readless_supported;
1382 /* Initialize mmio registers */
1383 rc = ena_com_mmio_reg_read_request_init(ena_dev);
1385 PMD_DRV_LOG(ERR, "Failed to init MMIO read less\n");
1389 /* The PCIe configuration space revision id indicate if mmio reg
1392 readless_supported = !(pdev->id.class_id & ENA_MMIO_DISABLE_REG_READ);
1393 ena_com_set_mmio_read_mode(ena_dev, readless_supported);
1396 rc = ena_com_dev_reset(ena_dev, ENA_REGS_RESET_NORMAL);
1398 PMD_DRV_LOG(ERR, "Cannot reset device\n");
1399 goto err_mmio_read_less;
1402 /* check FW version */
1403 rc = ena_com_validate_version(ena_dev);
1405 PMD_DRV_LOG(ERR, "Device version is too low\n");
1406 goto err_mmio_read_less;
1409 ena_dev->dma_addr_bits = ena_com_get_dma_width(ena_dev);
1411 /* ENA device administration layer init */
1412 rc = ena_com_admin_init(ena_dev, &aenq_handlers);
1415 "Cannot initialize ENA admin queue\n");
1416 goto err_mmio_read_less;
1419 /* To enable the msix interrupts the driver needs to know the number
1420 * of queues. So the driver uses polling mode to retrieve this
1423 ena_com_set_admin_polling_mode(ena_dev, true);
1425 ena_config_host_info(ena_dev);
1427 /* Get Device Attributes and features */
1428 rc = ena_com_get_dev_attr_feat(ena_dev, get_feat_ctx);
1431 "Cannot get attribute for ENA device, rc: %d\n", rc);
1432 goto err_admin_init;
1435 aenq_groups = BIT(ENA_ADMIN_LINK_CHANGE) |
1436 BIT(ENA_ADMIN_NOTIFICATION) |
1437 BIT(ENA_ADMIN_KEEP_ALIVE) |
1438 BIT(ENA_ADMIN_FATAL_ERROR) |
1439 BIT(ENA_ADMIN_WARNING);
1441 aenq_groups &= get_feat_ctx->aenq.supported_groups;
1442 rc = ena_com_set_aenq_config(ena_dev, aenq_groups);
1444 PMD_DRV_LOG(ERR, "Cannot configure AENQ groups, rc: %d\n", rc);
1445 goto err_admin_init;
1448 *wd_state = !!(aenq_groups & BIT(ENA_ADMIN_KEEP_ALIVE));
1453 ena_com_admin_destroy(ena_dev);
1456 ena_com_mmio_reg_read_request_destroy(ena_dev);
1461 static void ena_interrupt_handler_rte(void *cb_arg)
1463 struct rte_eth_dev *dev = cb_arg;
1464 struct ena_adapter *adapter = dev->data->dev_private;
1465 struct ena_com_dev *ena_dev = &adapter->ena_dev;
1467 ena_com_admin_q_comp_intr_handler(ena_dev);
1468 if (likely(adapter->state != ENA_ADAPTER_STATE_CLOSED))
1469 ena_com_aenq_intr_handler(ena_dev, dev);
1472 static void check_for_missing_keep_alive(struct ena_adapter *adapter)
1474 if (!adapter->wd_state)
1477 if (adapter->keep_alive_timeout == ENA_HW_HINTS_NO_TIMEOUT)
1480 if (unlikely((rte_get_timer_cycles() - adapter->timestamp_wd) >=
1481 adapter->keep_alive_timeout)) {
1482 PMD_DRV_LOG(ERR, "Keep alive timeout\n");
1483 adapter->reset_reason = ENA_REGS_RESET_KEEP_ALIVE_TO;
1484 adapter->trigger_reset = true;
1485 ++adapter->dev_stats.wd_expired;
1489 /* Check if admin queue is enabled */
1490 static void check_for_admin_com_state(struct ena_adapter *adapter)
1492 if (unlikely(!ena_com_get_admin_running_state(&adapter->ena_dev))) {
1493 PMD_DRV_LOG(ERR, "ENA admin queue is not in running state\n");
1494 adapter->reset_reason = ENA_REGS_RESET_ADMIN_TO;
1495 adapter->trigger_reset = true;
1499 static void ena_timer_wd_callback(__rte_unused struct rte_timer *timer,
1502 struct rte_eth_dev *dev = arg;
1503 struct ena_adapter *adapter = dev->data->dev_private;
1505 check_for_missing_keep_alive(adapter);
1506 check_for_admin_com_state(adapter);
1508 if (unlikely(adapter->trigger_reset)) {
1509 PMD_DRV_LOG(ERR, "Trigger reset is on\n");
1510 rte_eth_dev_callback_process(dev, RTE_ETH_EVENT_INTR_RESET,
1516 set_default_llq_configurations(struct ena_llq_configurations *llq_config,
1517 struct ena_admin_feature_llq_desc *llq,
1518 bool use_large_llq_hdr)
1520 llq_config->llq_header_location = ENA_ADMIN_INLINE_HEADER;
1521 llq_config->llq_stride_ctrl = ENA_ADMIN_MULTIPLE_DESCS_PER_ENTRY;
1522 llq_config->llq_num_decs_before_header =
1523 ENA_ADMIN_LLQ_NUM_DESCS_BEFORE_HEADER_2;
1525 if (use_large_llq_hdr &&
1526 (llq->entry_size_ctrl_supported & ENA_ADMIN_LIST_ENTRY_SIZE_256B)) {
1527 llq_config->llq_ring_entry_size =
1528 ENA_ADMIN_LIST_ENTRY_SIZE_256B;
1529 llq_config->llq_ring_entry_size_value = 256;
1531 llq_config->llq_ring_entry_size =
1532 ENA_ADMIN_LIST_ENTRY_SIZE_128B;
1533 llq_config->llq_ring_entry_size_value = 128;
1538 ena_set_queues_placement_policy(struct ena_adapter *adapter,
1539 struct ena_com_dev *ena_dev,
1540 struct ena_admin_feature_llq_desc *llq,
1541 struct ena_llq_configurations *llq_default_configurations)
1544 u32 llq_feature_mask;
1546 llq_feature_mask = 1 << ENA_ADMIN_LLQ;
1547 if (!(ena_dev->supported_features & llq_feature_mask)) {
1549 "LLQ is not supported. Fallback to host mode policy.\n");
1550 ena_dev->tx_mem_queue_type = ENA_ADMIN_PLACEMENT_POLICY_HOST;
1554 rc = ena_com_config_dev_mode(ena_dev, llq, llq_default_configurations);
1556 PMD_INIT_LOG(WARNING,
1557 "Failed to config dev mode. Fallback to host mode policy.\n");
1558 ena_dev->tx_mem_queue_type = ENA_ADMIN_PLACEMENT_POLICY_HOST;
1562 /* Nothing to config, exit */
1563 if (ena_dev->tx_mem_queue_type == ENA_ADMIN_PLACEMENT_POLICY_HOST)
1566 if (!adapter->dev_mem_base) {
1568 "Unable to access LLQ BAR resource. Fallback to host mode policy.\n");
1569 ena_dev->tx_mem_queue_type = ENA_ADMIN_PLACEMENT_POLICY_HOST;
1573 ena_dev->mem_bar = adapter->dev_mem_base;
1578 static uint32_t ena_calc_max_io_queue_num(struct ena_com_dev *ena_dev,
1579 struct ena_com_dev_get_features_ctx *get_feat_ctx)
1581 uint32_t io_tx_sq_num, io_tx_cq_num, io_rx_num, max_num_io_queues;
1583 /* Regular queues capabilities */
1584 if (ena_dev->supported_features & BIT(ENA_ADMIN_MAX_QUEUES_EXT)) {
1585 struct ena_admin_queue_ext_feature_fields *max_queue_ext =
1586 &get_feat_ctx->max_queue_ext.max_queue_ext;
1587 io_rx_num = RTE_MIN(max_queue_ext->max_rx_sq_num,
1588 max_queue_ext->max_rx_cq_num);
1589 io_tx_sq_num = max_queue_ext->max_tx_sq_num;
1590 io_tx_cq_num = max_queue_ext->max_tx_cq_num;
1592 struct ena_admin_queue_feature_desc *max_queues =
1593 &get_feat_ctx->max_queues;
1594 io_tx_sq_num = max_queues->max_sq_num;
1595 io_tx_cq_num = max_queues->max_cq_num;
1596 io_rx_num = RTE_MIN(io_tx_sq_num, io_tx_cq_num);
1599 /* In case of LLQ use the llq number in the get feature cmd */
1600 if (ena_dev->tx_mem_queue_type == ENA_ADMIN_PLACEMENT_POLICY_DEV)
1601 io_tx_sq_num = get_feat_ctx->llq.max_llq_num;
1603 max_num_io_queues = RTE_MIN(ENA_MAX_NUM_IO_QUEUES, io_rx_num);
1604 max_num_io_queues = RTE_MIN(max_num_io_queues, io_tx_sq_num);
1605 max_num_io_queues = RTE_MIN(max_num_io_queues, io_tx_cq_num);
1607 if (unlikely(max_num_io_queues == 0)) {
1608 PMD_DRV_LOG(ERR, "Number of IO queues cannot not be 0\n");
1612 return max_num_io_queues;
1615 static int eth_ena_dev_init(struct rte_eth_dev *eth_dev)
1617 struct ena_calc_queue_size_ctx calc_queue_ctx = { 0 };
1618 struct rte_pci_device *pci_dev;
1619 struct rte_intr_handle *intr_handle;
1620 struct ena_adapter *adapter = eth_dev->data->dev_private;
1621 struct ena_com_dev *ena_dev = &adapter->ena_dev;
1622 struct ena_com_dev_get_features_ctx get_feat_ctx;
1623 struct ena_llq_configurations llq_config;
1624 const char *queue_type_str;
1625 uint32_t max_num_io_queues;
1627 static int adapters_found;
1628 bool disable_meta_caching;
1629 bool wd_state = false;
1631 eth_dev->dev_ops = &ena_dev_ops;
1632 eth_dev->rx_pkt_burst = ð_ena_recv_pkts;
1633 eth_dev->tx_pkt_burst = ð_ena_xmit_pkts;
1634 eth_dev->tx_pkt_prepare = ð_ena_prep_pkts;
1636 if (rte_eal_process_type() != RTE_PROC_PRIMARY)
1639 eth_dev->data->dev_flags |= RTE_ETH_DEV_AUTOFILL_QUEUE_XSTATS;
1641 memset(adapter, 0, sizeof(struct ena_adapter));
1642 ena_dev = &adapter->ena_dev;
1644 adapter->edev_data = eth_dev->data;
1646 pci_dev = RTE_ETH_DEV_TO_PCI(eth_dev);
1648 PMD_INIT_LOG(INFO, "Initializing %x:%x:%x.%d\n",
1649 pci_dev->addr.domain,
1651 pci_dev->addr.devid,
1652 pci_dev->addr.function);
1654 intr_handle = &pci_dev->intr_handle;
1656 adapter->regs = pci_dev->mem_resource[ENA_REGS_BAR].addr;
1657 adapter->dev_mem_base = pci_dev->mem_resource[ENA_MEM_BAR].addr;
1659 if (!adapter->regs) {
1660 PMD_INIT_LOG(CRIT, "Failed to access registers BAR(%d)\n",
1665 ena_dev->reg_bar = adapter->regs;
1666 /* This is a dummy pointer for ena_com functions. */
1667 ena_dev->dmadev = adapter;
1669 adapter->id_number = adapters_found;
1671 snprintf(adapter->name, ENA_NAME_MAX_LEN, "ena_%d",
1672 adapter->id_number);
1674 rc = ena_parse_devargs(adapter, pci_dev->device.devargs);
1676 PMD_INIT_LOG(CRIT, "Failed to parse devargs\n");
1680 /* device specific initialization routine */
1681 rc = ena_device_init(ena_dev, pci_dev, &get_feat_ctx, &wd_state);
1683 PMD_INIT_LOG(CRIT, "Failed to init ENA device\n");
1686 adapter->wd_state = wd_state;
1688 set_default_llq_configurations(&llq_config, &get_feat_ctx.llq,
1689 adapter->use_large_llq_hdr);
1690 rc = ena_set_queues_placement_policy(adapter, ena_dev,
1691 &get_feat_ctx.llq, &llq_config);
1693 PMD_INIT_LOG(CRIT, "Failed to set placement policy\n");
1697 if (ena_dev->tx_mem_queue_type == ENA_ADMIN_PLACEMENT_POLICY_HOST)
1698 queue_type_str = "Regular";
1700 queue_type_str = "Low latency";
1701 PMD_DRV_LOG(INFO, "Placement policy: %s\n", queue_type_str);
1703 calc_queue_ctx.ena_dev = ena_dev;
1704 calc_queue_ctx.get_feat_ctx = &get_feat_ctx;
1706 max_num_io_queues = ena_calc_max_io_queue_num(ena_dev, &get_feat_ctx);
1707 rc = ena_calc_io_queue_size(&calc_queue_ctx,
1708 adapter->use_large_llq_hdr);
1709 if (unlikely((rc != 0) || (max_num_io_queues == 0))) {
1711 goto err_device_destroy;
1714 adapter->max_tx_ring_size = calc_queue_ctx.max_tx_queue_size;
1715 adapter->max_rx_ring_size = calc_queue_ctx.max_rx_queue_size;
1716 adapter->max_tx_sgl_size = calc_queue_ctx.max_tx_sgl_size;
1717 adapter->max_rx_sgl_size = calc_queue_ctx.max_rx_sgl_size;
1718 adapter->max_num_io_queues = max_num_io_queues;
1720 if (ena_dev->tx_mem_queue_type == ENA_ADMIN_PLACEMENT_POLICY_DEV) {
1721 disable_meta_caching =
1722 !!(get_feat_ctx.llq.accel_mode.u.get.supported_flags &
1723 BIT(ENA_ADMIN_DISABLE_META_CACHING));
1725 disable_meta_caching = false;
1728 /* prepare ring structures */
1729 ena_init_rings(adapter, disable_meta_caching);
1731 ena_config_debug_area(adapter);
1733 /* Set max MTU for this device */
1734 adapter->max_mtu = get_feat_ctx.dev_attr.max_mtu;
1736 /* set device support for offloads */
1737 adapter->offloads.tso4_supported = (get_feat_ctx.offload.tx &
1738 ENA_ADMIN_FEATURE_OFFLOAD_DESC_TSO_IPV4_MASK) != 0;
1739 adapter->offloads.tx_csum_supported = (get_feat_ctx.offload.tx &
1740 ENA_ADMIN_FEATURE_OFFLOAD_DESC_TX_L4_IPV4_CSUM_PART_MASK) != 0;
1741 adapter->offloads.rx_csum_supported =
1742 (get_feat_ctx.offload.rx_supported &
1743 ENA_ADMIN_FEATURE_OFFLOAD_DESC_RX_L4_IPV4_CSUM_MASK) != 0;
1744 adapter->offloads.rss_hash_supported =
1745 (get_feat_ctx.offload.rx_supported &
1746 ENA_ADMIN_FEATURE_OFFLOAD_DESC_RX_HASH_MASK) != 0;
1748 /* Copy MAC address and point DPDK to it */
1749 eth_dev->data->mac_addrs = (struct rte_ether_addr *)adapter->mac_addr;
1750 rte_ether_addr_copy((struct rte_ether_addr *)
1751 get_feat_ctx.dev_attr.mac_addr,
1752 (struct rte_ether_addr *)adapter->mac_addr);
1754 rc = ena_com_rss_init(ena_dev, ENA_RX_RSS_TABLE_LOG_SIZE);
1755 if (unlikely(rc != 0)) {
1756 PMD_DRV_LOG(ERR, "Failed to initialize RSS in ENA device\n");
1757 goto err_delete_debug_area;
1760 adapter->drv_stats = rte_zmalloc("adapter stats",
1761 sizeof(*adapter->drv_stats),
1762 RTE_CACHE_LINE_SIZE);
1763 if (!adapter->drv_stats) {
1765 "Failed to allocate memory for adapter statistics\n");
1767 goto err_rss_destroy;
1770 rte_spinlock_init(&adapter->admin_lock);
1772 rte_intr_callback_register(intr_handle,
1773 ena_interrupt_handler_rte,
1775 rte_intr_enable(intr_handle);
1776 ena_com_set_admin_polling_mode(ena_dev, false);
1777 ena_com_admin_aenq_enable(ena_dev);
1779 if (adapters_found == 0)
1780 rte_timer_subsystem_init();
1781 rte_timer_init(&adapter->timer_wd);
1784 adapter->state = ENA_ADAPTER_STATE_INIT;
1789 ena_com_rss_destroy(ena_dev);
1790 err_delete_debug_area:
1791 ena_com_delete_debug_area(ena_dev);
1794 ena_com_delete_host_info(ena_dev);
1795 ena_com_admin_destroy(ena_dev);
1801 static void ena_destroy_device(struct rte_eth_dev *eth_dev)
1803 struct ena_adapter *adapter = eth_dev->data->dev_private;
1804 struct ena_com_dev *ena_dev = &adapter->ena_dev;
1806 if (adapter->state == ENA_ADAPTER_STATE_FREE)
1809 ena_com_set_admin_running_state(ena_dev, false);
1811 if (adapter->state != ENA_ADAPTER_STATE_CLOSED)
1814 ena_com_rss_destroy(ena_dev);
1816 ena_com_delete_debug_area(ena_dev);
1817 ena_com_delete_host_info(ena_dev);
1819 ena_com_abort_admin_commands(ena_dev);
1820 ena_com_wait_for_abort_completion(ena_dev);
1821 ena_com_admin_destroy(ena_dev);
1822 ena_com_mmio_reg_read_request_destroy(ena_dev);
1824 adapter->state = ENA_ADAPTER_STATE_FREE;
1827 static int eth_ena_dev_uninit(struct rte_eth_dev *eth_dev)
1829 if (rte_eal_process_type() != RTE_PROC_PRIMARY)
1832 ena_destroy_device(eth_dev);
1837 static int ena_dev_configure(struct rte_eth_dev *dev)
1839 struct ena_adapter *adapter = dev->data->dev_private;
1841 adapter->state = ENA_ADAPTER_STATE_CONFIG;
1843 if (dev->data->dev_conf.rxmode.mq_mode & ETH_MQ_RX_RSS_FLAG)
1844 dev->data->dev_conf.rxmode.offloads |= DEV_RX_OFFLOAD_RSS_HASH;
1845 dev->data->dev_conf.txmode.offloads |= DEV_TX_OFFLOAD_MULTI_SEGS;
1847 adapter->tx_selected_offloads = dev->data->dev_conf.txmode.offloads;
1848 adapter->rx_selected_offloads = dev->data->dev_conf.rxmode.offloads;
1852 static void ena_init_rings(struct ena_adapter *adapter,
1853 bool disable_meta_caching)
1857 for (i = 0; i < adapter->max_num_io_queues; i++) {
1858 struct ena_ring *ring = &adapter->tx_ring[i];
1860 ring->configured = 0;
1861 ring->type = ENA_RING_TYPE_TX;
1862 ring->adapter = adapter;
1864 ring->tx_mem_queue_type = adapter->ena_dev.tx_mem_queue_type;
1865 ring->tx_max_header_size = adapter->ena_dev.tx_max_header_size;
1866 ring->sgl_size = adapter->max_tx_sgl_size;
1867 ring->disable_meta_caching = disable_meta_caching;
1870 for (i = 0; i < adapter->max_num_io_queues; i++) {
1871 struct ena_ring *ring = &adapter->rx_ring[i];
1873 ring->configured = 0;
1874 ring->type = ENA_RING_TYPE_RX;
1875 ring->adapter = adapter;
1877 ring->sgl_size = adapter->max_rx_sgl_size;
1881 static int ena_infos_get(struct rte_eth_dev *dev,
1882 struct rte_eth_dev_info *dev_info)
1884 struct ena_adapter *adapter;
1885 struct ena_com_dev *ena_dev;
1886 uint64_t rx_feat = 0, tx_feat = 0;
1888 ena_assert_msg(dev->data != NULL, "Uninitialized device\n");
1889 ena_assert_msg(dev->data->dev_private != NULL, "Uninitialized device\n");
1890 adapter = dev->data->dev_private;
1892 ena_dev = &adapter->ena_dev;
1893 ena_assert_msg(ena_dev != NULL, "Uninitialized device\n");
1895 dev_info->speed_capa =
1897 ETH_LINK_SPEED_2_5G |
1899 ETH_LINK_SPEED_10G |
1900 ETH_LINK_SPEED_25G |
1901 ETH_LINK_SPEED_40G |
1902 ETH_LINK_SPEED_50G |
1903 ETH_LINK_SPEED_100G;
1905 /* Set Tx & Rx features available for device */
1906 if (adapter->offloads.tso4_supported)
1907 tx_feat |= DEV_TX_OFFLOAD_TCP_TSO;
1909 if (adapter->offloads.tx_csum_supported)
1910 tx_feat |= DEV_TX_OFFLOAD_IPV4_CKSUM |
1911 DEV_TX_OFFLOAD_UDP_CKSUM |
1912 DEV_TX_OFFLOAD_TCP_CKSUM;
1914 if (adapter->offloads.rx_csum_supported)
1915 rx_feat |= DEV_RX_OFFLOAD_IPV4_CKSUM |
1916 DEV_RX_OFFLOAD_UDP_CKSUM |
1917 DEV_RX_OFFLOAD_TCP_CKSUM;
1919 rx_feat |= DEV_RX_OFFLOAD_JUMBO_FRAME;
1920 tx_feat |= DEV_TX_OFFLOAD_MULTI_SEGS;
1922 /* Inform framework about available features */
1923 dev_info->rx_offload_capa = rx_feat;
1924 if (adapter->offloads.rss_hash_supported)
1925 dev_info->rx_offload_capa |= DEV_RX_OFFLOAD_RSS_HASH;
1926 dev_info->rx_queue_offload_capa = rx_feat;
1927 dev_info->tx_offload_capa = tx_feat;
1928 dev_info->tx_queue_offload_capa = tx_feat;
1930 dev_info->flow_type_rss_offloads = ENA_ALL_RSS_HF;
1931 dev_info->hash_key_size = ENA_HASH_KEY_SIZE;
1933 dev_info->min_rx_bufsize = ENA_MIN_FRAME_LEN;
1934 dev_info->max_rx_pktlen = adapter->max_mtu + RTE_ETHER_HDR_LEN +
1936 dev_info->min_mtu = ENA_MIN_MTU;
1937 dev_info->max_mtu = adapter->max_mtu;
1938 dev_info->max_mac_addrs = 1;
1940 dev_info->max_rx_queues = adapter->max_num_io_queues;
1941 dev_info->max_tx_queues = adapter->max_num_io_queues;
1942 dev_info->reta_size = ENA_RX_RSS_TABLE_SIZE;
1944 adapter->tx_supported_offloads = tx_feat;
1945 adapter->rx_supported_offloads = rx_feat;
1947 dev_info->rx_desc_lim.nb_max = adapter->max_rx_ring_size;
1948 dev_info->rx_desc_lim.nb_min = ENA_MIN_RING_DESC;
1949 dev_info->rx_desc_lim.nb_seg_max = RTE_MIN(ENA_PKT_MAX_BUFS,
1950 adapter->max_rx_sgl_size);
1951 dev_info->rx_desc_lim.nb_mtu_seg_max = RTE_MIN(ENA_PKT_MAX_BUFS,
1952 adapter->max_rx_sgl_size);
1954 dev_info->tx_desc_lim.nb_max = adapter->max_tx_ring_size;
1955 dev_info->tx_desc_lim.nb_min = ENA_MIN_RING_DESC;
1956 dev_info->tx_desc_lim.nb_seg_max = RTE_MIN(ENA_PKT_MAX_BUFS,
1957 adapter->max_tx_sgl_size);
1958 dev_info->tx_desc_lim.nb_mtu_seg_max = RTE_MIN(ENA_PKT_MAX_BUFS,
1959 adapter->max_tx_sgl_size);
1961 dev_info->default_rxportconf.ring_size = ENA_DEFAULT_RING_SIZE;
1962 dev_info->default_txportconf.ring_size = ENA_DEFAULT_RING_SIZE;
1967 static inline void ena_init_rx_mbuf(struct rte_mbuf *mbuf, uint16_t len)
1969 mbuf->data_len = len;
1970 mbuf->data_off = RTE_PKTMBUF_HEADROOM;
1975 static struct rte_mbuf *ena_rx_mbuf(struct ena_ring *rx_ring,
1976 struct ena_com_rx_buf_info *ena_bufs,
1978 uint16_t *next_to_clean,
1981 struct rte_mbuf *mbuf;
1982 struct rte_mbuf *mbuf_head;
1983 struct ena_rx_buffer *rx_info;
1985 uint16_t ntc, len, req_id, buf = 0;
1987 if (unlikely(descs == 0))
1990 ntc = *next_to_clean;
1992 len = ena_bufs[buf].len;
1993 req_id = ena_bufs[buf].req_id;
1995 rx_info = &rx_ring->rx_buffer_info[req_id];
1997 mbuf = rx_info->mbuf;
1998 RTE_ASSERT(mbuf != NULL);
2000 ena_init_rx_mbuf(mbuf, len);
2002 /* Fill the mbuf head with the data specific for 1st segment. */
2004 mbuf_head->nb_segs = descs;
2005 mbuf_head->port = rx_ring->port_id;
2006 mbuf_head->pkt_len = len;
2007 mbuf_head->data_off += offset;
2009 rx_info->mbuf = NULL;
2010 rx_ring->empty_rx_reqs[ntc] = req_id;
2011 ntc = ENA_IDX_NEXT_MASKED(ntc, rx_ring->size_mask);
2015 len = ena_bufs[buf].len;
2016 req_id = ena_bufs[buf].req_id;
2018 rx_info = &rx_ring->rx_buffer_info[req_id];
2019 RTE_ASSERT(rx_info->mbuf != NULL);
2021 if (unlikely(len == 0)) {
2023 * Some devices can pass descriptor with the length 0.
2024 * To avoid confusion, the PMD is simply putting the
2025 * descriptor back, as it was never used. We'll avoid
2026 * mbuf allocation that way.
2028 rc = ena_add_single_rx_desc(rx_ring->ena_com_io_sq,
2029 rx_info->mbuf, req_id);
2030 if (unlikely(rc != 0)) {
2031 /* Free the mbuf in case of an error. */
2032 rte_mbuf_raw_free(rx_info->mbuf);
2035 * If there was no error, just exit the loop as
2036 * 0 length descriptor is always the last one.
2041 /* Create an mbuf chain. */
2042 mbuf->next = rx_info->mbuf;
2045 ena_init_rx_mbuf(mbuf, len);
2046 mbuf_head->pkt_len += len;
2050 * Mark the descriptor as depleted and perform necessary
2052 * This code will execute in two cases:
2053 * 1. Descriptor len was greater than 0 - normal situation.
2054 * 2. Descriptor len was 0 and we failed to add the descriptor
2055 * to the device. In that situation, we should try to add
2056 * the mbuf again in the populate routine and mark the
2057 * descriptor as used up by the device.
2059 rx_info->mbuf = NULL;
2060 rx_ring->empty_rx_reqs[ntc] = req_id;
2061 ntc = ENA_IDX_NEXT_MASKED(ntc, rx_ring->size_mask);
2064 *next_to_clean = ntc;
2069 static uint16_t eth_ena_recv_pkts(void *rx_queue, struct rte_mbuf **rx_pkts,
2072 struct ena_ring *rx_ring = (struct ena_ring *)(rx_queue);
2073 unsigned int free_queue_entries;
2074 unsigned int refill_threshold;
2075 uint16_t next_to_clean = rx_ring->next_to_clean;
2076 uint16_t descs_in_use;
2077 struct rte_mbuf *mbuf;
2079 struct ena_com_rx_ctx ena_rx_ctx;
2083 #ifdef RTE_ETHDEV_DEBUG_RX
2084 /* Check adapter state */
2085 if (unlikely(rx_ring->adapter->state != ENA_ADAPTER_STATE_RUNNING)) {
2087 "Trying to receive pkts while device is NOT running\n");
2092 fill_hash = rx_ring->offloads & DEV_RX_OFFLOAD_RSS_HASH;
2094 descs_in_use = rx_ring->ring_size -
2095 ena_com_free_q_entries(rx_ring->ena_com_io_sq) - 1;
2096 nb_pkts = RTE_MIN(descs_in_use, nb_pkts);
2098 for (completed = 0; completed < nb_pkts; completed++) {
2099 ena_rx_ctx.max_bufs = rx_ring->sgl_size;
2100 ena_rx_ctx.ena_bufs = rx_ring->ena_bufs;
2101 ena_rx_ctx.descs = 0;
2102 ena_rx_ctx.pkt_offset = 0;
2103 /* receive packet context */
2104 rc = ena_com_rx_pkt(rx_ring->ena_com_io_cq,
2105 rx_ring->ena_com_io_sq,
2109 "Failed to get the packet from the device, rc: %d\n",
2111 if (rc == ENA_COM_NO_SPACE) {
2112 ++rx_ring->rx_stats.bad_desc_num;
2113 rx_ring->adapter->reset_reason =
2114 ENA_REGS_RESET_TOO_MANY_RX_DESCS;
2116 ++rx_ring->rx_stats.bad_req_id;
2117 rx_ring->adapter->reset_reason =
2118 ENA_REGS_RESET_INV_RX_REQ_ID;
2120 rx_ring->adapter->trigger_reset = true;
2124 mbuf = ena_rx_mbuf(rx_ring,
2125 ena_rx_ctx.ena_bufs,
2128 ena_rx_ctx.pkt_offset);
2129 if (unlikely(mbuf == NULL)) {
2130 for (i = 0; i < ena_rx_ctx.descs; ++i) {
2131 rx_ring->empty_rx_reqs[next_to_clean] =
2132 rx_ring->ena_bufs[i].req_id;
2133 next_to_clean = ENA_IDX_NEXT_MASKED(
2134 next_to_clean, rx_ring->size_mask);
2139 /* fill mbuf attributes if any */
2140 ena_rx_mbuf_prepare(mbuf, &ena_rx_ctx, fill_hash);
2142 if (unlikely(mbuf->ol_flags &
2143 (PKT_RX_IP_CKSUM_BAD | PKT_RX_L4_CKSUM_BAD))) {
2144 rte_atomic64_inc(&rx_ring->adapter->drv_stats->ierrors);
2145 ++rx_ring->rx_stats.bad_csum;
2148 rx_pkts[completed] = mbuf;
2149 rx_ring->rx_stats.bytes += mbuf->pkt_len;
2152 rx_ring->rx_stats.cnt += completed;
2153 rx_ring->next_to_clean = next_to_clean;
2155 free_queue_entries = ena_com_free_q_entries(rx_ring->ena_com_io_sq);
2157 RTE_MIN(rx_ring->ring_size / ENA_REFILL_THRESH_DIVIDER,
2158 (unsigned int)ENA_REFILL_THRESH_PACKET);
2160 /* Burst refill to save doorbells, memory barriers, const interval */
2161 if (free_queue_entries > refill_threshold) {
2162 ena_com_update_dev_comp_head(rx_ring->ena_com_io_cq);
2163 ena_populate_rx_queue(rx_ring, free_queue_entries);
2170 eth_ena_prep_pkts(void *tx_queue, struct rte_mbuf **tx_pkts,
2176 struct ena_ring *tx_ring = (struct ena_ring *)(tx_queue);
2177 struct rte_ipv4_hdr *ip_hdr;
2179 uint16_t frag_field;
2181 for (i = 0; i != nb_pkts; i++) {
2183 ol_flags = m->ol_flags;
2185 if (!(ol_flags & PKT_TX_IPV4))
2188 /* If there was not L2 header length specified, assume it is
2189 * length of the ethernet header.
2191 if (unlikely(m->l2_len == 0))
2192 m->l2_len = sizeof(struct rte_ether_hdr);
2194 ip_hdr = rte_pktmbuf_mtod_offset(m, struct rte_ipv4_hdr *,
2196 frag_field = rte_be_to_cpu_16(ip_hdr->fragment_offset);
2198 if ((frag_field & RTE_IPV4_HDR_DF_FLAG) != 0) {
2199 m->packet_type |= RTE_PTYPE_L4_NONFRAG;
2201 /* If IPv4 header has DF flag enabled and TSO support is
2202 * disabled, partial chcecksum should not be calculated.
2204 if (!tx_ring->adapter->offloads.tso4_supported)
2208 if ((ol_flags & ENA_TX_OFFLOAD_NOTSUP_MASK) != 0 ||
2209 (ol_flags & PKT_TX_L4_MASK) ==
2210 PKT_TX_SCTP_CKSUM) {
2211 rte_errno = ENOTSUP;
2215 #ifdef RTE_LIBRTE_ETHDEV_DEBUG
2216 ret = rte_validate_tx_offload(m);
2223 /* In case we are supposed to TSO and have DF not set (DF=0)
2224 * hardware must be provided with partial checksum, otherwise
2225 * it will take care of necessary calculations.
2228 ret = rte_net_intel_cksum_flags_prepare(m,
2229 ol_flags & ~PKT_TX_TCP_SEG);
2239 static void ena_update_hints(struct ena_adapter *adapter,
2240 struct ena_admin_ena_hw_hints *hints)
2242 if (hints->admin_completion_tx_timeout)
2243 adapter->ena_dev.admin_queue.completion_timeout =
2244 hints->admin_completion_tx_timeout * 1000;
2246 if (hints->mmio_read_timeout)
2247 /* convert to usec */
2248 adapter->ena_dev.mmio_read.reg_read_to =
2249 hints->mmio_read_timeout * 1000;
2251 if (hints->driver_watchdog_timeout) {
2252 if (hints->driver_watchdog_timeout == ENA_HW_HINTS_NO_TIMEOUT)
2253 adapter->keep_alive_timeout = ENA_HW_HINTS_NO_TIMEOUT;
2255 // Convert msecs to ticks
2256 adapter->keep_alive_timeout =
2257 (hints->driver_watchdog_timeout *
2258 rte_get_timer_hz()) / 1000;
2262 static int ena_check_space_and_linearize_mbuf(struct ena_ring *tx_ring,
2263 struct rte_mbuf *mbuf)
2265 struct ena_com_dev *ena_dev;
2266 int num_segments, header_len, rc;
2268 ena_dev = &tx_ring->adapter->ena_dev;
2269 num_segments = mbuf->nb_segs;
2270 header_len = mbuf->data_len;
2272 if (likely(num_segments < tx_ring->sgl_size))
2275 if (ena_dev->tx_mem_queue_type == ENA_ADMIN_PLACEMENT_POLICY_DEV &&
2276 (num_segments == tx_ring->sgl_size) &&
2277 (header_len < tx_ring->tx_max_header_size))
2280 /* Checking for space for 2 additional metadata descriptors due to
2281 * possible header split and metadata descriptor. Linearization will
2282 * be needed so we reduce the segments number from num_segments to 1
2284 if (!ena_com_sq_have_enough_space(tx_ring->ena_com_io_sq, 3)) {
2285 PMD_TX_LOG(DEBUG, "Not enough space in the Tx queue\n");
2286 return ENA_COM_NO_MEM;
2288 ++tx_ring->tx_stats.linearize;
2289 rc = rte_pktmbuf_linearize(mbuf);
2291 PMD_TX_LOG(WARNING, "Mbuf linearize failed\n");
2292 rte_atomic64_inc(&tx_ring->adapter->drv_stats->ierrors);
2293 ++tx_ring->tx_stats.linearize_failed;
2300 /* Checking for space for 2 additional metadata descriptors due to
2301 * possible header split and metadata descriptor
2303 if (!ena_com_sq_have_enough_space(tx_ring->ena_com_io_sq,
2304 num_segments + 2)) {
2305 PMD_TX_LOG(DEBUG, "Not enough space in the Tx queue\n");
2306 return ENA_COM_NO_MEM;
2312 static void ena_tx_map_mbuf(struct ena_ring *tx_ring,
2313 struct ena_tx_buffer *tx_info,
2314 struct rte_mbuf *mbuf,
2316 uint16_t *header_len)
2318 struct ena_com_buf *ena_buf;
2319 uint16_t delta, seg_len, push_len;
2322 seg_len = mbuf->data_len;
2324 tx_info->mbuf = mbuf;
2325 ena_buf = tx_info->bufs;
2327 if (tx_ring->tx_mem_queue_type == ENA_ADMIN_PLACEMENT_POLICY_DEV) {
2329 * Tx header might be (and will be in most cases) smaller than
2330 * tx_max_header_size. But it's not an issue to send more data
2331 * to the device, than actually needed if the mbuf size is
2332 * greater than tx_max_header_size.
2334 push_len = RTE_MIN(mbuf->pkt_len, tx_ring->tx_max_header_size);
2335 *header_len = push_len;
2337 if (likely(push_len <= seg_len)) {
2338 /* If the push header is in the single segment, then
2339 * just point it to the 1st mbuf data.
2341 *push_header = rte_pktmbuf_mtod(mbuf, uint8_t *);
2343 /* If the push header lays in the several segments, copy
2344 * it to the intermediate buffer.
2346 rte_pktmbuf_read(mbuf, 0, push_len,
2347 tx_ring->push_buf_intermediate_buf);
2348 *push_header = tx_ring->push_buf_intermediate_buf;
2349 delta = push_len - seg_len;
2352 *push_header = NULL;
2357 /* Process first segment taking into consideration pushed header */
2358 if (seg_len > push_len) {
2359 ena_buf->paddr = mbuf->buf_iova +
2362 ena_buf->len = seg_len - push_len;
2364 tx_info->num_of_bufs++;
2367 while ((mbuf = mbuf->next) != NULL) {
2368 seg_len = mbuf->data_len;
2370 /* Skip mbufs if whole data is pushed as a header */
2371 if (unlikely(delta > seg_len)) {
2376 ena_buf->paddr = mbuf->buf_iova + mbuf->data_off + delta;
2377 ena_buf->len = seg_len - delta;
2379 tx_info->num_of_bufs++;
2385 static int ena_xmit_mbuf(struct ena_ring *tx_ring, struct rte_mbuf *mbuf)
2387 struct ena_tx_buffer *tx_info;
2388 struct ena_com_tx_ctx ena_tx_ctx = { { 0 } };
2389 uint16_t next_to_use;
2390 uint16_t header_len;
2396 rc = ena_check_space_and_linearize_mbuf(tx_ring, mbuf);
2400 next_to_use = tx_ring->next_to_use;
2402 req_id = tx_ring->empty_tx_reqs[next_to_use];
2403 tx_info = &tx_ring->tx_buffer_info[req_id];
2404 tx_info->num_of_bufs = 0;
2406 ena_tx_map_mbuf(tx_ring, tx_info, mbuf, &push_header, &header_len);
2408 ena_tx_ctx.ena_bufs = tx_info->bufs;
2409 ena_tx_ctx.push_header = push_header;
2410 ena_tx_ctx.num_bufs = tx_info->num_of_bufs;
2411 ena_tx_ctx.req_id = req_id;
2412 ena_tx_ctx.header_len = header_len;
2414 /* Set Tx offloads flags, if applicable */
2415 ena_tx_mbuf_prepare(mbuf, &ena_tx_ctx, tx_ring->offloads,
2416 tx_ring->disable_meta_caching);
2418 if (unlikely(ena_com_is_doorbell_needed(tx_ring->ena_com_io_sq,
2421 "LLQ Tx max burst size of queue %d achieved, writing doorbell to send burst\n",
2423 ena_com_write_sq_doorbell(tx_ring->ena_com_io_sq);
2424 tx_ring->tx_stats.doorbells++;
2425 tx_ring->pkts_without_db = false;
2428 /* prepare the packet's descriptors to dma engine */
2429 rc = ena_com_prepare_tx(tx_ring->ena_com_io_sq, &ena_tx_ctx,
2432 PMD_DRV_LOG(ERR, "Failed to prepare Tx buffers, rc: %d\n", rc);
2433 ++tx_ring->tx_stats.prepare_ctx_err;
2434 tx_ring->adapter->reset_reason =
2435 ENA_REGS_RESET_DRIVER_INVALID_STATE;
2436 tx_ring->adapter->trigger_reset = true;
2440 tx_info->tx_descs = nb_hw_desc;
2442 tx_ring->tx_stats.cnt++;
2443 tx_ring->tx_stats.bytes += mbuf->pkt_len;
2445 tx_ring->next_to_use = ENA_IDX_NEXT_MASKED(next_to_use,
2446 tx_ring->size_mask);
2451 static void ena_tx_cleanup(struct ena_ring *tx_ring)
2453 unsigned int cleanup_budget;
2454 unsigned int total_tx_descs = 0;
2455 uint16_t next_to_clean = tx_ring->next_to_clean;
2457 cleanup_budget = RTE_MIN(tx_ring->ring_size / ENA_REFILL_THRESH_DIVIDER,
2458 (unsigned int)ENA_REFILL_THRESH_PACKET);
2460 while (likely(total_tx_descs < cleanup_budget)) {
2461 struct rte_mbuf *mbuf;
2462 struct ena_tx_buffer *tx_info;
2465 if (ena_com_tx_comp_req_id_get(tx_ring->ena_com_io_cq, &req_id) != 0)
2468 if (unlikely(validate_tx_req_id(tx_ring, req_id) != 0))
2471 /* Get Tx info & store how many descs were processed */
2472 tx_info = &tx_ring->tx_buffer_info[req_id];
2474 mbuf = tx_info->mbuf;
2475 rte_pktmbuf_free(mbuf);
2477 tx_info->mbuf = NULL;
2478 tx_ring->empty_tx_reqs[next_to_clean] = req_id;
2480 total_tx_descs += tx_info->tx_descs;
2482 /* Put back descriptor to the ring for reuse */
2483 next_to_clean = ENA_IDX_NEXT_MASKED(next_to_clean,
2484 tx_ring->size_mask);
2487 if (likely(total_tx_descs > 0)) {
2488 /* acknowledge completion of sent packets */
2489 tx_ring->next_to_clean = next_to_clean;
2490 ena_com_comp_ack(tx_ring->ena_com_io_sq, total_tx_descs);
2491 ena_com_update_dev_comp_head(tx_ring->ena_com_io_cq);
2495 static uint16_t eth_ena_xmit_pkts(void *tx_queue, struct rte_mbuf **tx_pkts,
2498 struct ena_ring *tx_ring = (struct ena_ring *)(tx_queue);
2499 uint16_t sent_idx = 0;
2501 #ifdef RTE_ETHDEV_DEBUG_TX
2502 /* Check adapter state */
2503 if (unlikely(tx_ring->adapter->state != ENA_ADAPTER_STATE_RUNNING)) {
2505 "Trying to xmit pkts while device is NOT running\n");
2510 for (sent_idx = 0; sent_idx < nb_pkts; sent_idx++) {
2511 if (ena_xmit_mbuf(tx_ring, tx_pkts[sent_idx]))
2513 tx_ring->pkts_without_db = true;
2514 rte_prefetch0(tx_pkts[ENA_IDX_ADD_MASKED(sent_idx, 4,
2515 tx_ring->size_mask)]);
2518 tx_ring->tx_stats.available_desc =
2519 ena_com_free_q_entries(tx_ring->ena_com_io_sq);
2521 /* If there are ready packets to be xmitted... */
2522 if (likely(tx_ring->pkts_without_db)) {
2523 /* ...let HW do its best :-) */
2524 ena_com_write_sq_doorbell(tx_ring->ena_com_io_sq);
2525 tx_ring->tx_stats.doorbells++;
2526 tx_ring->pkts_without_db = false;
2529 ena_tx_cleanup(tx_ring);
2531 tx_ring->tx_stats.available_desc =
2532 ena_com_free_q_entries(tx_ring->ena_com_io_sq);
2533 tx_ring->tx_stats.tx_poll++;
2538 int ena_copy_eni_stats(struct ena_adapter *adapter)
2540 struct ena_admin_eni_stats admin_eni_stats;
2543 rte_spinlock_lock(&adapter->admin_lock);
2544 rc = ena_com_get_eni_stats(&adapter->ena_dev, &admin_eni_stats);
2545 rte_spinlock_unlock(&adapter->admin_lock);
2547 if (rc == ENA_COM_UNSUPPORTED) {
2549 "Retrieving ENI metrics is not supported\n");
2551 PMD_DRV_LOG(WARNING,
2552 "Failed to get ENI metrics, rc: %d\n", rc);
2557 rte_memcpy(&adapter->eni_stats, &admin_eni_stats,
2558 sizeof(struct ena_stats_eni));
2564 * DPDK callback to retrieve names of extended device statistics
2567 * Pointer to Ethernet device structure.
2568 * @param[out] xstats_names
2569 * Buffer to insert names into.
2574 * Number of xstats names.
2576 static int ena_xstats_get_names(struct rte_eth_dev *dev,
2577 struct rte_eth_xstat_name *xstats_names,
2580 unsigned int xstats_count = ena_xstats_calc_num(dev->data);
2581 unsigned int stat, i, count = 0;
2583 if (n < xstats_count || !xstats_names)
2584 return xstats_count;
2586 for (stat = 0; stat < ENA_STATS_ARRAY_GLOBAL; stat++, count++)
2587 strcpy(xstats_names[count].name,
2588 ena_stats_global_strings[stat].name);
2590 for (stat = 0; stat < ENA_STATS_ARRAY_ENI; stat++, count++)
2591 strcpy(xstats_names[count].name,
2592 ena_stats_eni_strings[stat].name);
2594 for (stat = 0; stat < ENA_STATS_ARRAY_RX; stat++)
2595 for (i = 0; i < dev->data->nb_rx_queues; i++, count++)
2596 snprintf(xstats_names[count].name,
2597 sizeof(xstats_names[count].name),
2599 ena_stats_rx_strings[stat].name);
2601 for (stat = 0; stat < ENA_STATS_ARRAY_TX; stat++)
2602 for (i = 0; i < dev->data->nb_tx_queues; i++, count++)
2603 snprintf(xstats_names[count].name,
2604 sizeof(xstats_names[count].name),
2606 ena_stats_tx_strings[stat].name);
2608 return xstats_count;
2612 * DPDK callback to get extended device statistics.
2615 * Pointer to Ethernet device structure.
2617 * Stats table output buffer.
2619 * The size of the stats table.
2622 * Number of xstats on success, negative on failure.
2624 static int ena_xstats_get(struct rte_eth_dev *dev,
2625 struct rte_eth_xstat *xstats,
2628 struct ena_adapter *adapter = dev->data->dev_private;
2629 unsigned int xstats_count = ena_xstats_calc_num(dev->data);
2630 unsigned int stat, i, count = 0;
2634 if (n < xstats_count)
2635 return xstats_count;
2640 for (stat = 0; stat < ENA_STATS_ARRAY_GLOBAL; stat++, count++) {
2641 stat_offset = ena_stats_global_strings[stat].stat_offset;
2642 stats_begin = &adapter->dev_stats;
2644 xstats[count].id = count;
2645 xstats[count].value = *((uint64_t *)
2646 ((char *)stats_begin + stat_offset));
2649 /* Even if the function below fails, we should copy previous (or initial
2650 * values) to keep structure of rte_eth_xstat consistent.
2652 ena_copy_eni_stats(adapter);
2653 for (stat = 0; stat < ENA_STATS_ARRAY_ENI; stat++, count++) {
2654 stat_offset = ena_stats_eni_strings[stat].stat_offset;
2655 stats_begin = &adapter->eni_stats;
2657 xstats[count].id = count;
2658 xstats[count].value = *((uint64_t *)
2659 ((char *)stats_begin + stat_offset));
2662 for (stat = 0; stat < ENA_STATS_ARRAY_RX; stat++) {
2663 for (i = 0; i < dev->data->nb_rx_queues; i++, count++) {
2664 stat_offset = ena_stats_rx_strings[stat].stat_offset;
2665 stats_begin = &adapter->rx_ring[i].rx_stats;
2667 xstats[count].id = count;
2668 xstats[count].value = *((uint64_t *)
2669 ((char *)stats_begin + stat_offset));
2673 for (stat = 0; stat < ENA_STATS_ARRAY_TX; stat++) {
2674 for (i = 0; i < dev->data->nb_tx_queues; i++, count++) {
2675 stat_offset = ena_stats_tx_strings[stat].stat_offset;
2676 stats_begin = &adapter->tx_ring[i].rx_stats;
2678 xstats[count].id = count;
2679 xstats[count].value = *((uint64_t *)
2680 ((char *)stats_begin + stat_offset));
2687 static int ena_xstats_get_by_id(struct rte_eth_dev *dev,
2688 const uint64_t *ids,
2692 struct ena_adapter *adapter = dev->data->dev_private;
2694 uint64_t rx_entries, tx_entries;
2698 bool was_eni_copied = false;
2700 for (i = 0; i < n; ++i) {
2702 /* Check if id belongs to global statistics */
2703 if (id < ENA_STATS_ARRAY_GLOBAL) {
2704 values[i] = *((uint64_t *)&adapter->dev_stats + id);
2709 /* Check if id belongs to ENI statistics */
2710 id -= ENA_STATS_ARRAY_GLOBAL;
2711 if (id < ENA_STATS_ARRAY_ENI) {
2712 /* Avoid reading ENI stats multiple times in a single
2713 * function call, as it requires communication with the
2716 if (!was_eni_copied) {
2717 was_eni_copied = true;
2718 ena_copy_eni_stats(adapter);
2720 values[i] = *((uint64_t *)&adapter->eni_stats + id);
2725 /* Check if id belongs to rx queue statistics */
2726 id -= ENA_STATS_ARRAY_ENI;
2727 rx_entries = ENA_STATS_ARRAY_RX * dev->data->nb_rx_queues;
2728 if (id < rx_entries) {
2729 qid = id % dev->data->nb_rx_queues;
2730 id /= dev->data->nb_rx_queues;
2731 values[i] = *((uint64_t *)
2732 &adapter->rx_ring[qid].rx_stats + id);
2736 /* Check if id belongs to rx queue statistics */
2738 tx_entries = ENA_STATS_ARRAY_TX * dev->data->nb_tx_queues;
2739 if (id < tx_entries) {
2740 qid = id % dev->data->nb_tx_queues;
2741 id /= dev->data->nb_tx_queues;
2742 values[i] = *((uint64_t *)
2743 &adapter->tx_ring[qid].tx_stats + id);
2752 static int ena_process_bool_devarg(const char *key,
2756 struct ena_adapter *adapter = opaque;
2759 /* Parse the value. */
2760 if (strcmp(value, "1") == 0) {
2762 } else if (strcmp(value, "0") == 0) {
2766 "Invalid value: '%s' for key '%s'. Accepted: '0' or '1'\n",
2771 /* Now, assign it to the proper adapter field. */
2772 if (strcmp(key, ENA_DEVARG_LARGE_LLQ_HDR) == 0)
2773 adapter->use_large_llq_hdr = bool_value;
2778 static int ena_parse_devargs(struct ena_adapter *adapter,
2779 struct rte_devargs *devargs)
2781 static const char * const allowed_args[] = {
2782 ENA_DEVARG_LARGE_LLQ_HDR,
2785 struct rte_kvargs *kvlist;
2788 if (devargs == NULL)
2791 kvlist = rte_kvargs_parse(devargs->args, allowed_args);
2792 if (kvlist == NULL) {
2793 PMD_INIT_LOG(ERR, "Invalid device arguments: %s\n",
2798 rc = rte_kvargs_process(kvlist, ENA_DEVARG_LARGE_LLQ_HDR,
2799 ena_process_bool_devarg, adapter);
2801 rte_kvargs_free(kvlist);
2806 static int ena_setup_rx_intr(struct rte_eth_dev *dev)
2808 struct rte_pci_device *pci_dev = RTE_ETH_DEV_TO_PCI(dev);
2809 struct rte_intr_handle *intr_handle = &pci_dev->intr_handle;
2811 uint16_t vectors_nb, i;
2812 bool rx_intr_requested = dev->data->dev_conf.intr_conf.rxq;
2814 if (!rx_intr_requested)
2817 if (!rte_intr_cap_multiple(intr_handle)) {
2819 "Rx interrupt requested, but it isn't supported by the PCI driver\n");
2823 /* Disable interrupt mapping before the configuration starts. */
2824 rte_intr_disable(intr_handle);
2826 /* Verify if there are enough vectors available. */
2827 vectors_nb = dev->data->nb_rx_queues;
2828 if (vectors_nb > RTE_MAX_RXTX_INTR_VEC_ID) {
2830 "Too many Rx interrupts requested, maximum number: %d\n",
2831 RTE_MAX_RXTX_INTR_VEC_ID);
2836 intr_handle->intr_vec = rte_zmalloc("intr_vec",
2837 dev->data->nb_rx_queues * sizeof(*intr_handle->intr_vec), 0);
2838 if (intr_handle->intr_vec == NULL) {
2840 "Failed to allocate interrupt vector for %d queues\n",
2841 dev->data->nb_rx_queues);
2846 rc = rte_intr_efd_enable(intr_handle, vectors_nb);
2850 if (!rte_intr_allow_others(intr_handle)) {
2852 "Not enough interrupts available to use both ENA Admin and Rx interrupts\n");
2853 goto disable_intr_efd;
2856 for (i = 0; i < vectors_nb; ++i)
2857 intr_handle->intr_vec[i] = RTE_INTR_VEC_RXTX_OFFSET + i;
2859 rte_intr_enable(intr_handle);
2863 rte_intr_efd_disable(intr_handle);
2865 rte_free(intr_handle->intr_vec);
2866 intr_handle->intr_vec = NULL;
2868 rte_intr_enable(intr_handle);
2872 static void ena_rx_queue_intr_set(struct rte_eth_dev *dev,
2876 struct ena_adapter *adapter = dev->data->dev_private;
2877 struct ena_ring *rxq = &adapter->rx_ring[queue_id];
2878 struct ena_eth_io_intr_reg intr_reg;
2880 ena_com_update_intr_reg(&intr_reg, 0, 0, unmask);
2881 ena_com_unmask_intr(rxq->ena_com_io_cq, &intr_reg);
2884 static int ena_rx_queue_intr_enable(struct rte_eth_dev *dev,
2887 ena_rx_queue_intr_set(dev, queue_id, true);
2892 static int ena_rx_queue_intr_disable(struct rte_eth_dev *dev,
2895 ena_rx_queue_intr_set(dev, queue_id, false);
2900 /*********************************************************************
2902 *********************************************************************/
2903 static int eth_ena_pci_probe(struct rte_pci_driver *pci_drv __rte_unused,
2904 struct rte_pci_device *pci_dev)
2906 return rte_eth_dev_pci_generic_probe(pci_dev,
2907 sizeof(struct ena_adapter), eth_ena_dev_init);
2910 static int eth_ena_pci_remove(struct rte_pci_device *pci_dev)
2912 return rte_eth_dev_pci_generic_remove(pci_dev, eth_ena_dev_uninit);
2915 static struct rte_pci_driver rte_ena_pmd = {
2916 .id_table = pci_id_ena_map,
2917 .drv_flags = RTE_PCI_DRV_NEED_MAPPING | RTE_PCI_DRV_INTR_LSC |
2918 RTE_PCI_DRV_WC_ACTIVATE,
2919 .probe = eth_ena_pci_probe,
2920 .remove = eth_ena_pci_remove,
2923 RTE_PMD_REGISTER_PCI(net_ena, rte_ena_pmd);
2924 RTE_PMD_REGISTER_PCI_TABLE(net_ena, pci_id_ena_map);
2925 RTE_PMD_REGISTER_KMOD_DEP(net_ena, "* igb_uio | uio_pci_generic | vfio-pci");
2926 RTE_PMD_REGISTER_PARAM_STRING(net_ena, ENA_DEVARG_LARGE_LLQ_HDR "=<0|1>");
2927 RTE_LOG_REGISTER_SUFFIX(ena_logtype_init, init, NOTICE);
2928 RTE_LOG_REGISTER_SUFFIX(ena_logtype_driver, driver, NOTICE);
2929 #ifdef RTE_ETHDEV_DEBUG_RX
2930 RTE_LOG_REGISTER_SUFFIX(ena_logtype_rx, rx, DEBUG);
2932 #ifdef RTE_ETHDEV_DEBUG_TX
2933 RTE_LOG_REGISTER_SUFFIX(ena_logtype_tx, tx, DEBUG);
2935 RTE_LOG_REGISTER_SUFFIX(ena_logtype_com, com, WARNING);
2937 /******************************************************************************
2938 ******************************** AENQ Handlers *******************************
2939 *****************************************************************************/
2940 static void ena_update_on_link_change(void *adapter_data,
2941 struct ena_admin_aenq_entry *aenq_e)
2943 struct rte_eth_dev *eth_dev = adapter_data;
2944 struct ena_adapter *adapter = eth_dev->data->dev_private;
2945 struct ena_admin_aenq_link_change_desc *aenq_link_desc;
2948 aenq_link_desc = (struct ena_admin_aenq_link_change_desc *)aenq_e;
2950 status = get_ena_admin_aenq_link_change_desc_link_status(aenq_link_desc);
2951 adapter->link_status = status;
2953 ena_link_update(eth_dev, 0);
2954 rte_eth_dev_callback_process(eth_dev, RTE_ETH_EVENT_INTR_LSC, NULL);
2957 static void ena_notification(void *adapter_data,
2958 struct ena_admin_aenq_entry *aenq_e)
2960 struct rte_eth_dev *eth_dev = adapter_data;
2961 struct ena_adapter *adapter = eth_dev->data->dev_private;
2962 struct ena_admin_ena_hw_hints *hints;
2964 if (aenq_e->aenq_common_desc.group != ENA_ADMIN_NOTIFICATION)
2965 PMD_DRV_LOG(WARNING, "Invalid AENQ group: %x. Expected: %x\n",
2966 aenq_e->aenq_common_desc.group,
2967 ENA_ADMIN_NOTIFICATION);
2969 switch (aenq_e->aenq_common_desc.syndrome) {
2970 case ENA_ADMIN_UPDATE_HINTS:
2971 hints = (struct ena_admin_ena_hw_hints *)
2972 (&aenq_e->inline_data_w4);
2973 ena_update_hints(adapter, hints);
2976 PMD_DRV_LOG(ERR, "Invalid AENQ notification link state: %d\n",
2977 aenq_e->aenq_common_desc.syndrome);
2981 static void ena_keep_alive(void *adapter_data,
2982 __rte_unused struct ena_admin_aenq_entry *aenq_e)
2984 struct rte_eth_dev *eth_dev = adapter_data;
2985 struct ena_adapter *adapter = eth_dev->data->dev_private;
2986 struct ena_admin_aenq_keep_alive_desc *desc;
2990 adapter->timestamp_wd = rte_get_timer_cycles();
2992 desc = (struct ena_admin_aenq_keep_alive_desc *)aenq_e;
2993 rx_drops = ((uint64_t)desc->rx_drops_high << 32) | desc->rx_drops_low;
2994 tx_drops = ((uint64_t)desc->tx_drops_high << 32) | desc->tx_drops_low;
2996 adapter->drv_stats->rx_drops = rx_drops;
2997 adapter->dev_stats.tx_drops = tx_drops;
3001 * This handler will called for unknown event group or unimplemented handlers
3003 static void unimplemented_aenq_handler(__rte_unused void *data,
3004 __rte_unused struct ena_admin_aenq_entry *aenq_e)
3007 "Unknown event was received or event with unimplemented handler\n");
3010 static struct ena_aenq_handlers aenq_handlers = {
3012 [ENA_ADMIN_LINK_CHANGE] = ena_update_on_link_change,
3013 [ENA_ADMIN_NOTIFICATION] = ena_notification,
3014 [ENA_ADMIN_KEEP_ALIVE] = ena_keep_alive
3016 .unimplemented_handler = unimplemented_aenq_handler