1 /* SPDX-License-Identifier: BSD-3-Clause
2 * Copyright(c) 2018-2021 HiSilicon Limited.
5 #include <rte_bus_pci.h>
6 #include <rte_common.h>
7 #include <rte_cycles.h>
8 #include <rte_geneve.h>
10 #include <ethdev_driver.h>
13 #include <rte_malloc.h>
14 #if defined(RTE_ARCH_ARM64) && defined(__ARM_FEATURE_SVE)
15 #include <rte_cpuflags.h>
18 #include "hns3_ethdev.h"
19 #include "hns3_rxtx.h"
20 #include "hns3_regs.h"
21 #include "hns3_logs.h"
23 #define HNS3_CFG_DESC_NUM(num) ((num) / 8 - 1)
24 #define HNS3_RX_RING_PREFETCTH_MASK 3
27 hns3_rx_queue_release_mbufs(struct hns3_rx_queue *rxq)
31 /* Note: Fake rx queue will not enter here */
32 if (rxq->sw_ring == NULL)
35 if (rxq->rx_rearm_nb == 0) {
36 for (i = 0; i < rxq->nb_rx_desc; i++) {
37 if (rxq->sw_ring[i].mbuf != NULL) {
38 rte_pktmbuf_free_seg(rxq->sw_ring[i].mbuf);
39 rxq->sw_ring[i].mbuf = NULL;
43 for (i = rxq->next_to_use;
44 i != rxq->rx_rearm_start;
45 i = (i + 1) % rxq->nb_rx_desc) {
46 if (rxq->sw_ring[i].mbuf != NULL) {
47 rte_pktmbuf_free_seg(rxq->sw_ring[i].mbuf);
48 rxq->sw_ring[i].mbuf = NULL;
53 for (i = 0; i < rxq->bulk_mbuf_num; i++)
54 rte_pktmbuf_free_seg(rxq->bulk_mbuf[i]);
55 rxq->bulk_mbuf_num = 0;
57 if (rxq->pkt_first_seg) {
58 rte_pktmbuf_free(rxq->pkt_first_seg);
59 rxq->pkt_first_seg = NULL;
64 hns3_tx_queue_release_mbufs(struct hns3_tx_queue *txq)
68 /* Note: Fake tx queue will not enter here */
70 for (i = 0; i < txq->nb_tx_desc; i++) {
71 if (txq->sw_ring[i].mbuf) {
72 rte_pktmbuf_free_seg(txq->sw_ring[i].mbuf);
73 txq->sw_ring[i].mbuf = NULL;
80 hns3_rx_queue_release(void *queue)
82 struct hns3_rx_queue *rxq = queue;
84 hns3_rx_queue_release_mbufs(rxq);
86 rte_memzone_free(rxq->mz);
88 rte_free(rxq->sw_ring);
94 hns3_tx_queue_release(void *queue)
96 struct hns3_tx_queue *txq = queue;
98 hns3_tx_queue_release_mbufs(txq);
100 rte_memzone_free(txq->mz);
102 rte_free(txq->sw_ring);
110 hns3_dev_rx_queue_release(void *queue)
112 struct hns3_rx_queue *rxq = queue;
113 struct hns3_adapter *hns;
119 rte_spinlock_lock(&hns->hw.lock);
120 hns3_rx_queue_release(queue);
121 rte_spinlock_unlock(&hns->hw.lock);
125 hns3_dev_tx_queue_release(void *queue)
127 struct hns3_tx_queue *txq = queue;
128 struct hns3_adapter *hns;
134 rte_spinlock_lock(&hns->hw.lock);
135 hns3_tx_queue_release(queue);
136 rte_spinlock_unlock(&hns->hw.lock);
140 hns3_fake_rx_queue_release(struct hns3_rx_queue *queue)
142 struct hns3_rx_queue *rxq = queue;
143 struct hns3_adapter *hns;
153 if (hw->fkq_data.rx_queues[idx]) {
154 hns3_rx_queue_release(hw->fkq_data.rx_queues[idx]);
155 hw->fkq_data.rx_queues[idx] = NULL;
158 /* free fake rx queue arrays */
159 if (idx == (hw->fkq_data.nb_fake_rx_queues - 1)) {
160 hw->fkq_data.nb_fake_rx_queues = 0;
161 rte_free(hw->fkq_data.rx_queues);
162 hw->fkq_data.rx_queues = NULL;
167 hns3_fake_tx_queue_release(struct hns3_tx_queue *queue)
169 struct hns3_tx_queue *txq = queue;
170 struct hns3_adapter *hns;
180 if (hw->fkq_data.tx_queues[idx]) {
181 hns3_tx_queue_release(hw->fkq_data.tx_queues[idx]);
182 hw->fkq_data.tx_queues[idx] = NULL;
185 /* free fake tx queue arrays */
186 if (idx == (hw->fkq_data.nb_fake_tx_queues - 1)) {
187 hw->fkq_data.nb_fake_tx_queues = 0;
188 rte_free(hw->fkq_data.tx_queues);
189 hw->fkq_data.tx_queues = NULL;
194 hns3_free_rx_queues(struct rte_eth_dev *dev)
196 struct hns3_adapter *hns = dev->data->dev_private;
197 struct hns3_fake_queue_data *fkq_data;
198 struct hns3_hw *hw = &hns->hw;
202 nb_rx_q = hw->data->nb_rx_queues;
203 for (i = 0; i < nb_rx_q; i++) {
204 if (dev->data->rx_queues[i]) {
205 hns3_rx_queue_release(dev->data->rx_queues[i]);
206 dev->data->rx_queues[i] = NULL;
210 /* Free fake Rx queues */
211 fkq_data = &hw->fkq_data;
212 for (i = 0; i < fkq_data->nb_fake_rx_queues; i++) {
213 if (fkq_data->rx_queues[i])
214 hns3_fake_rx_queue_release(fkq_data->rx_queues[i]);
219 hns3_free_tx_queues(struct rte_eth_dev *dev)
221 struct hns3_adapter *hns = dev->data->dev_private;
222 struct hns3_fake_queue_data *fkq_data;
223 struct hns3_hw *hw = &hns->hw;
227 nb_tx_q = hw->data->nb_tx_queues;
228 for (i = 0; i < nb_tx_q; i++) {
229 if (dev->data->tx_queues[i]) {
230 hns3_tx_queue_release(dev->data->tx_queues[i]);
231 dev->data->tx_queues[i] = NULL;
235 /* Free fake Tx queues */
236 fkq_data = &hw->fkq_data;
237 for (i = 0; i < fkq_data->nb_fake_tx_queues; i++) {
238 if (fkq_data->tx_queues[i])
239 hns3_fake_tx_queue_release(fkq_data->tx_queues[i]);
244 hns3_free_all_queues(struct rte_eth_dev *dev)
246 hns3_free_rx_queues(dev);
247 hns3_free_tx_queues(dev);
251 hns3_alloc_rx_queue_mbufs(struct hns3_hw *hw, struct hns3_rx_queue *rxq)
253 struct rte_mbuf *mbuf;
257 for (i = 0; i < rxq->nb_rx_desc; i++) {
258 mbuf = rte_mbuf_raw_alloc(rxq->mb_pool);
259 if (unlikely(mbuf == NULL)) {
260 hns3_err(hw, "Failed to allocate RXD[%u] for rx queue!",
262 hns3_rx_queue_release_mbufs(rxq);
266 rte_mbuf_refcnt_set(mbuf, 1);
268 mbuf->data_off = RTE_PKTMBUF_HEADROOM;
270 mbuf->port = rxq->port_id;
272 rxq->sw_ring[i].mbuf = mbuf;
273 dma_addr = rte_cpu_to_le_64(rte_mbuf_data_iova_default(mbuf));
274 rxq->rx_ring[i].addr = dma_addr;
275 rxq->rx_ring[i].rx.bd_base_info = 0;
282 hns3_buf_size2type(uint32_t buf_size)
288 bd_size_type = HNS3_BD_SIZE_512_TYPE;
291 bd_size_type = HNS3_BD_SIZE_1024_TYPE;
294 bd_size_type = HNS3_BD_SIZE_4096_TYPE;
297 bd_size_type = HNS3_BD_SIZE_2048_TYPE;
304 hns3_init_rx_queue_hw(struct hns3_rx_queue *rxq)
306 uint32_t rx_buf_len = rxq->rx_buf_len;
307 uint64_t dma_addr = rxq->rx_ring_phys_addr;
309 hns3_write_dev(rxq, HNS3_RING_RX_BASEADDR_L_REG, (uint32_t)dma_addr);
310 hns3_write_dev(rxq, HNS3_RING_RX_BASEADDR_H_REG,
311 (uint32_t)((dma_addr >> 31) >> 1));
313 hns3_write_dev(rxq, HNS3_RING_RX_BD_LEN_REG,
314 hns3_buf_size2type(rx_buf_len));
315 hns3_write_dev(rxq, HNS3_RING_RX_BD_NUM_REG,
316 HNS3_CFG_DESC_NUM(rxq->nb_rx_desc));
320 hns3_init_tx_queue_hw(struct hns3_tx_queue *txq)
322 uint64_t dma_addr = txq->tx_ring_phys_addr;
324 hns3_write_dev(txq, HNS3_RING_TX_BASEADDR_L_REG, (uint32_t)dma_addr);
325 hns3_write_dev(txq, HNS3_RING_TX_BASEADDR_H_REG,
326 (uint32_t)((dma_addr >> 31) >> 1));
328 hns3_write_dev(txq, HNS3_RING_TX_BD_NUM_REG,
329 HNS3_CFG_DESC_NUM(txq->nb_tx_desc));
333 hns3_update_all_queues_pvid_proc_en(struct hns3_hw *hw)
335 uint16_t nb_rx_q = hw->data->nb_rx_queues;
336 uint16_t nb_tx_q = hw->data->nb_tx_queues;
337 struct hns3_rx_queue *rxq;
338 struct hns3_tx_queue *txq;
342 pvid_en = hw->port_base_vlan_cfg.state == HNS3_PORT_BASE_VLAN_ENABLE;
343 for (i = 0; i < hw->cfg_max_queues; i++) {
345 rxq = hw->data->rx_queues[i];
347 rxq->pvid_sw_discard_en = pvid_en;
350 txq = hw->data->tx_queues[i];
352 txq->pvid_sw_shift_en = pvid_en;
358 hns3_stop_unused_queue(void *tqp_base, enum hns3_ring_type queue_type)
363 reg_offset = queue_type == HNS3_RING_TYPE_TX ?
364 HNS3_RING_TX_EN_REG : HNS3_RING_RX_EN_REG;
365 reg = hns3_read_reg(tqp_base, reg_offset);
366 reg &= ~BIT(HNS3_RING_EN_B);
367 hns3_write_reg(tqp_base, reg_offset, reg);
371 hns3_enable_all_queues(struct hns3_hw *hw, bool en)
373 uint16_t nb_rx_q = hw->data->nb_rx_queues;
374 uint16_t nb_tx_q = hw->data->nb_tx_queues;
375 struct hns3_rx_queue *rxq;
376 struct hns3_tx_queue *txq;
381 for (i = 0; i < hw->cfg_max_queues; i++) {
382 if (hns3_dev_indep_txrx_supported(hw)) {
383 rxq = i < nb_rx_q ? hw->data->rx_queues[i] : NULL;
384 txq = i < nb_tx_q ? hw->data->tx_queues[i] : NULL;
386 tqp_base = (void *)((char *)hw->io_base +
387 hns3_get_tqp_reg_offset(i));
389 * If queue struct is not initialized, it means the
390 * related HW ring has not been initialized yet.
391 * So, these queues should be disabled before enable
392 * the tqps to avoid a HW exception since the queues
393 * are enabled by default.
396 hns3_stop_unused_queue(tqp_base,
399 hns3_stop_unused_queue(tqp_base,
402 rxq = i < nb_rx_q ? hw->data->rx_queues[i] :
403 hw->fkq_data.rx_queues[i - nb_rx_q];
405 tqp_base = rxq->io_base;
408 * This is the master switch that used to control the enabling
409 * of a pair of Tx and Rx queues. Both the Rx and Tx point to
412 rcb_reg = hns3_read_reg(tqp_base, HNS3_RING_EN_REG);
414 rcb_reg |= BIT(HNS3_RING_EN_B);
416 rcb_reg &= ~BIT(HNS3_RING_EN_B);
417 hns3_write_reg(tqp_base, HNS3_RING_EN_REG, rcb_reg);
422 hns3_enable_txq(struct hns3_tx_queue *txq, bool en)
424 struct hns3_hw *hw = &txq->hns->hw;
427 if (hns3_dev_indep_txrx_supported(hw)) {
428 reg = hns3_read_dev(txq, HNS3_RING_TX_EN_REG);
430 reg |= BIT(HNS3_RING_EN_B);
432 reg &= ~BIT(HNS3_RING_EN_B);
433 hns3_write_dev(txq, HNS3_RING_TX_EN_REG, reg);
439 hns3_enable_rxq(struct hns3_rx_queue *rxq, bool en)
441 struct hns3_hw *hw = &rxq->hns->hw;
444 if (hns3_dev_indep_txrx_supported(hw)) {
445 reg = hns3_read_dev(rxq, HNS3_RING_RX_EN_REG);
447 reg |= BIT(HNS3_RING_EN_B);
449 reg &= ~BIT(HNS3_RING_EN_B);
450 hns3_write_dev(rxq, HNS3_RING_RX_EN_REG, reg);
456 hns3_start_all_txqs(struct rte_eth_dev *dev)
458 struct hns3_hw *hw = HNS3_DEV_PRIVATE_TO_HW(dev->data->dev_private);
459 struct hns3_tx_queue *txq;
462 for (i = 0; i < dev->data->nb_tx_queues; i++) {
463 txq = hw->data->tx_queues[i];
465 hns3_err(hw, "Tx queue %u not available or setup.", i);
466 goto start_txqs_fail;
469 * Tx queue is enabled by default. Therefore, the Tx queues
470 * needs to be disabled when deferred_start is set. There is
471 * another master switch used to control the enabling of a pair
472 * of Tx and Rx queues. And the master switch is disabled by
475 if (txq->tx_deferred_start)
476 hns3_enable_txq(txq, false);
478 hns3_enable_txq(txq, true);
483 for (j = 0; j < i; j++) {
484 txq = hw->data->tx_queues[j];
485 hns3_enable_txq(txq, false);
491 hns3_start_all_rxqs(struct rte_eth_dev *dev)
493 struct hns3_hw *hw = HNS3_DEV_PRIVATE_TO_HW(dev->data->dev_private);
494 struct hns3_rx_queue *rxq;
497 for (i = 0; i < dev->data->nb_rx_queues; i++) {
498 rxq = hw->data->rx_queues[i];
500 hns3_err(hw, "Rx queue %u not available or setup.", i);
501 goto start_rxqs_fail;
504 * Rx queue is enabled by default. Therefore, the Rx queues
505 * needs to be disabled when deferred_start is set. There is
506 * another master switch used to control the enabling of a pair
507 * of Tx and Rx queues. And the master switch is disabled by
510 if (rxq->rx_deferred_start)
511 hns3_enable_rxq(rxq, false);
513 hns3_enable_rxq(rxq, true);
518 for (j = 0; j < i; j++) {
519 rxq = hw->data->rx_queues[j];
520 hns3_enable_rxq(rxq, false);
526 hns3_restore_tqp_enable_state(struct hns3_hw *hw)
528 struct hns3_rx_queue *rxq;
529 struct hns3_tx_queue *txq;
532 for (i = 0; i < hw->data->nb_rx_queues; i++) {
533 rxq = hw->data->rx_queues[i];
535 hns3_enable_rxq(rxq, rxq->enabled);
538 for (i = 0; i < hw->data->nb_tx_queues; i++) {
539 txq = hw->data->tx_queues[i];
541 hns3_enable_txq(txq, txq->enabled);
546 hns3_stop_all_txqs(struct rte_eth_dev *dev)
548 struct hns3_hw *hw = HNS3_DEV_PRIVATE_TO_HW(dev->data->dev_private);
549 struct hns3_tx_queue *txq;
552 for (i = 0; i < dev->data->nb_tx_queues; i++) {
553 txq = hw->data->tx_queues[i];
556 hns3_enable_txq(txq, false);
561 hns3_tqp_enable(struct hns3_hw *hw, uint16_t queue_id, bool enable)
563 struct hns3_cfg_com_tqp_queue_cmd *req;
564 struct hns3_cmd_desc desc;
567 req = (struct hns3_cfg_com_tqp_queue_cmd *)desc.data;
569 hns3_cmd_setup_basic_desc(&desc, HNS3_OPC_CFG_COM_TQP_QUEUE, false);
570 req->tqp_id = rte_cpu_to_le_16(queue_id);
572 hns3_set_bit(req->enable, HNS3_TQP_ENABLE_B, enable ? 1 : 0);
574 ret = hns3_cmd_send(hw, &desc, 1);
576 hns3_err(hw, "TQP enable fail, ret = %d", ret);
582 hns3_send_reset_tqp_cmd(struct hns3_hw *hw, uint16_t queue_id, bool enable)
584 struct hns3_reset_tqp_queue_cmd *req;
585 struct hns3_cmd_desc desc;
588 hns3_cmd_setup_basic_desc(&desc, HNS3_OPC_RESET_TQP_QUEUE, false);
590 req = (struct hns3_reset_tqp_queue_cmd *)desc.data;
591 req->tqp_id = rte_cpu_to_le_16(queue_id);
592 hns3_set_bit(req->reset_req, HNS3_TQP_RESET_B, enable ? 1 : 0);
593 ret = hns3_cmd_send(hw, &desc, 1);
595 hns3_err(hw, "send tqp reset cmd error, queue_id = %u, "
596 "ret = %d", queue_id, ret);
602 hns3_get_tqp_reset_status(struct hns3_hw *hw, uint16_t queue_id,
603 uint8_t *reset_status)
605 struct hns3_reset_tqp_queue_cmd *req;
606 struct hns3_cmd_desc desc;
609 hns3_cmd_setup_basic_desc(&desc, HNS3_OPC_RESET_TQP_QUEUE, true);
611 req = (struct hns3_reset_tqp_queue_cmd *)desc.data;
612 req->tqp_id = rte_cpu_to_le_16(queue_id);
614 ret = hns3_cmd_send(hw, &desc, 1);
616 hns3_err(hw, "get tqp reset status error, queue_id = %u, "
617 "ret = %d.", queue_id, ret);
620 *reset_status = hns3_get_bit(req->ready_to_reset, HNS3_TQP_RESET_B);
625 hns3pf_reset_tqp(struct hns3_hw *hw, uint16_t queue_id)
627 #define HNS3_TQP_RESET_TRY_MS 200
628 uint8_t reset_status;
633 * In current version VF is not supported when PF is driven by DPDK
634 * driver, all task queue pairs are mapped to PF function, so PF's queue
635 * id is equals to the global queue id in PF range.
637 ret = hns3_send_reset_tqp_cmd(hw, queue_id, true);
639 hns3_err(hw, "Send reset tqp cmd fail, ret = %d", ret);
642 end = get_timeofday_ms() + HNS3_TQP_RESET_TRY_MS;
644 /* Wait for tqp hw reset */
645 rte_delay_ms(HNS3_POLL_RESPONE_MS);
646 ret = hns3_get_tqp_reset_status(hw, queue_id, &reset_status);
652 } while (get_timeofday_ms() < end);
656 hns3_err(hw, "reset tqp timeout, queue_id = %u, ret = %d",
661 ret = hns3_send_reset_tqp_cmd(hw, queue_id, false);
663 hns3_err(hw, "Deassert the soft reset fail, ret = %d", ret);
668 hns3_send_reset_tqp_cmd(hw, queue_id, false);
673 hns3vf_reset_tqp(struct hns3_hw *hw, uint16_t queue_id)
678 memcpy(msg_data, &queue_id, sizeof(uint16_t));
680 ret = hns3_send_mbx_msg(hw, HNS3_MBX_QUEUE_RESET, 0, msg_data,
681 sizeof(msg_data), true, NULL, 0);
683 hns3_err(hw, "fail to reset tqp, queue_id = %u, ret = %d.",
689 hns3_reset_rcb_cmd(struct hns3_hw *hw, uint8_t *reset_status)
691 struct hns3_reset_cmd *req;
692 struct hns3_cmd_desc desc;
695 hns3_cmd_setup_basic_desc(&desc, HNS3_OPC_CFG_RST_TRIGGER, false);
696 req = (struct hns3_reset_cmd *)desc.data;
697 hns3_set_bit(req->mac_func_reset, HNS3_CFG_RESET_RCB_B, 1);
700 * The start qid should be the global qid of the first tqp of the
701 * function which should be reset in this port. Since our PF not
702 * support take over of VFs, so we only need to reset function 0,
703 * and its start qid is always 0.
705 req->fun_reset_rcb_vqid_start = rte_cpu_to_le_16(0);
706 req->fun_reset_rcb_vqid_num = rte_cpu_to_le_16(hw->cfg_max_queues);
708 ret = hns3_cmd_send(hw, &desc, 1);
710 hns3_err(hw, "fail to send rcb reset cmd, ret = %d.", ret);
714 *reset_status = req->fun_reset_rcb_return_status;
719 hns3pf_reset_all_tqps(struct hns3_hw *hw)
721 #define HNS3_RESET_RCB_NOT_SUPPORT 0U
722 #define HNS3_RESET_ALL_TQP_SUCCESS 1U
723 uint8_t reset_status;
727 ret = hns3_reset_rcb_cmd(hw, &reset_status);
732 * If the firmware version is low, it may not support the rcb reset
733 * which means reset all the tqps at a time. In this case, we should
734 * reset tqps one by one.
736 if (reset_status == HNS3_RESET_RCB_NOT_SUPPORT) {
737 for (i = 0; i < hw->cfg_max_queues; i++) {
738 ret = hns3pf_reset_tqp(hw, i);
741 "fail to reset tqp, queue_id = %d, ret = %d.",
746 } else if (reset_status != HNS3_RESET_ALL_TQP_SUCCESS) {
747 hns3_err(hw, "fail to reset all tqps, reset_status = %u.",
756 hns3vf_reset_all_tqps(struct hns3_hw *hw)
758 #define HNS3VF_RESET_ALL_TQP_DONE 1U
759 uint8_t reset_status;
764 memset(msg_data, 0, sizeof(uint16_t));
765 ret = hns3_send_mbx_msg(hw, HNS3_MBX_QUEUE_RESET, 0, msg_data,
766 sizeof(msg_data), true, &reset_status,
767 sizeof(reset_status));
769 hns3_err(hw, "fail to send rcb reset mbx, ret = %d.", ret);
773 if (reset_status == HNS3VF_RESET_ALL_TQP_DONE)
777 * If the firmware version or kernel PF version is low, it may not
778 * support the rcb reset which means reset all the tqps at a time.
779 * In this case, we should reset tqps one by one.
781 for (i = 1; i < hw->cfg_max_queues; i++) {
782 ret = hns3vf_reset_tqp(hw, i);
791 hns3_reset_all_tqps(struct hns3_adapter *hns)
793 struct hns3_hw *hw = &hns->hw;
796 /* Disable all queues before reset all queues */
797 for (i = 0; i < hw->cfg_max_queues; i++) {
798 ret = hns3_tqp_enable(hw, i, false);
801 "fail to disable tqps before tqps reset, ret = %d.",
808 return hns3vf_reset_all_tqps(hw);
810 return hns3pf_reset_all_tqps(hw);
814 hns3_send_reset_queue_cmd(struct hns3_hw *hw, uint16_t queue_id,
815 enum hns3_ring_type queue_type, bool enable)
817 struct hns3_reset_tqp_queue_cmd *req;
818 struct hns3_cmd_desc desc;
822 hns3_cmd_setup_basic_desc(&desc, HNS3_OPC_RESET_TQP_QUEUE_INDEP, false);
824 req = (struct hns3_reset_tqp_queue_cmd *)desc.data;
825 req->tqp_id = rte_cpu_to_le_16(queue_id);
826 queue_direction = queue_type == HNS3_RING_TYPE_TX ? 0 : 1;
827 req->queue_direction = rte_cpu_to_le_16(queue_direction);
828 hns3_set_bit(req->reset_req, HNS3_TQP_RESET_B, enable ? 1 : 0);
830 ret = hns3_cmd_send(hw, &desc, 1);
832 hns3_err(hw, "send queue reset cmd error, queue_id = %u, "
833 "queue_type = %s, ret = %d.", queue_id,
834 queue_type == HNS3_RING_TYPE_TX ? "Tx" : "Rx", ret);
839 hns3_get_queue_reset_status(struct hns3_hw *hw, uint16_t queue_id,
840 enum hns3_ring_type queue_type,
841 uint8_t *reset_status)
843 struct hns3_reset_tqp_queue_cmd *req;
844 struct hns3_cmd_desc desc;
848 hns3_cmd_setup_basic_desc(&desc, HNS3_OPC_RESET_TQP_QUEUE_INDEP, true);
850 req = (struct hns3_reset_tqp_queue_cmd *)desc.data;
851 req->tqp_id = rte_cpu_to_le_16(queue_id);
852 queue_direction = queue_type == HNS3_RING_TYPE_TX ? 0 : 1;
853 req->queue_direction = rte_cpu_to_le_16(queue_direction);
855 ret = hns3_cmd_send(hw, &desc, 1);
857 hns3_err(hw, "get queue reset status error, queue_id = %u "
858 "queue_type = %s, ret = %d.", queue_id,
859 queue_type == HNS3_RING_TYPE_TX ? "Tx" : "Rx", ret);
863 *reset_status = hns3_get_bit(req->ready_to_reset, HNS3_TQP_RESET_B);
868 hns3_reset_queue(struct hns3_hw *hw, uint16_t queue_id,
869 enum hns3_ring_type queue_type)
871 #define HNS3_QUEUE_RESET_TRY_MS 200
872 struct hns3_tx_queue *txq;
873 struct hns3_rx_queue *rxq;
874 uint32_t reset_wait_times;
875 uint32_t max_wait_times;
876 uint8_t reset_status;
879 if (queue_type == HNS3_RING_TYPE_TX) {
880 txq = hw->data->tx_queues[queue_id];
881 hns3_enable_txq(txq, false);
883 rxq = hw->data->rx_queues[queue_id];
884 hns3_enable_rxq(rxq, false);
887 ret = hns3_send_reset_queue_cmd(hw, queue_id, queue_type, true);
889 hns3_err(hw, "send reset queue cmd fail, ret = %d.", ret);
893 reset_wait_times = 0;
894 max_wait_times = HNS3_QUEUE_RESET_TRY_MS / HNS3_POLL_RESPONE_MS;
895 while (reset_wait_times < max_wait_times) {
896 /* Wait for queue hw reset */
897 rte_delay_ms(HNS3_POLL_RESPONE_MS);
898 ret = hns3_get_queue_reset_status(hw, queue_id,
899 queue_type, &reset_status);
901 goto queue_reset_fail;
909 hns3_err(hw, "reset queue timeout, queue_id = %u, "
910 "queue_type = %s", queue_id,
911 queue_type == HNS3_RING_TYPE_TX ? "Tx" : "Rx");
913 goto queue_reset_fail;
916 ret = hns3_send_reset_queue_cmd(hw, queue_id, queue_type, false);
918 hns3_err(hw, "deassert queue reset fail, ret = %d.", ret);
923 hns3_send_reset_queue_cmd(hw, queue_id, queue_type, false);
928 hns3_get_tqp_intr_reg_offset(uint16_t tqp_intr_id)
932 /* Need an extend offset to config queues > 64 */
933 if (tqp_intr_id < HNS3_MIN_EXT_TQP_INTR_ID)
934 reg_offset = HNS3_TQP_INTR_REG_BASE +
935 tqp_intr_id * HNS3_TQP_INTR_LOW_ORDER_OFFSET;
937 reg_offset = HNS3_TQP_INTR_EXT_REG_BASE +
938 tqp_intr_id / HNS3_MIN_EXT_TQP_INTR_ID *
939 HNS3_TQP_INTR_HIGH_ORDER_OFFSET +
940 tqp_intr_id % HNS3_MIN_EXT_TQP_INTR_ID *
941 HNS3_TQP_INTR_LOW_ORDER_OFFSET;
947 hns3_set_queue_intr_gl(struct hns3_hw *hw, uint16_t queue_id,
948 uint8_t gl_idx, uint16_t gl_value)
950 uint32_t offset[] = {HNS3_TQP_INTR_GL0_REG,
951 HNS3_TQP_INTR_GL1_REG,
952 HNS3_TQP_INTR_GL2_REG};
953 uint32_t addr, value;
955 if (gl_idx >= RTE_DIM(offset) || gl_value > HNS3_TQP_INTR_GL_MAX)
958 addr = offset[gl_idx] + hns3_get_tqp_intr_reg_offset(queue_id);
959 if (hw->intr.gl_unit == HNS3_INTR_COALESCE_GL_UINT_1US)
960 value = gl_value | HNS3_TQP_INTR_GL_UNIT_1US;
962 value = HNS3_GL_USEC_TO_REG(gl_value);
964 hns3_write_dev(hw, addr, value);
968 hns3_set_queue_intr_rl(struct hns3_hw *hw, uint16_t queue_id, uint16_t rl_value)
970 uint32_t addr, value;
972 if (rl_value > HNS3_TQP_INTR_RL_MAX)
975 addr = HNS3_TQP_INTR_RL_REG + hns3_get_tqp_intr_reg_offset(queue_id);
976 value = HNS3_RL_USEC_TO_REG(rl_value);
978 value |= HNS3_TQP_INTR_RL_ENABLE_MASK;
980 hns3_write_dev(hw, addr, value);
984 hns3_set_queue_intr_ql(struct hns3_hw *hw, uint16_t queue_id, uint16_t ql_value)
989 * int_ql_max == 0 means the hardware does not support QL,
990 * QL regs config is not permitted if QL is not supported,
993 if (hw->intr.int_ql_max == HNS3_INTR_QL_NONE)
996 addr = HNS3_TQP_INTR_TX_QL_REG + hns3_get_tqp_intr_reg_offset(queue_id);
997 hns3_write_dev(hw, addr, ql_value);
999 addr = HNS3_TQP_INTR_RX_QL_REG + hns3_get_tqp_intr_reg_offset(queue_id);
1000 hns3_write_dev(hw, addr, ql_value);
1004 hns3_queue_intr_enable(struct hns3_hw *hw, uint16_t queue_id, bool en)
1006 uint32_t addr, value;
1008 addr = HNS3_TQP_INTR_CTRL_REG + hns3_get_tqp_intr_reg_offset(queue_id);
1011 hns3_write_dev(hw, addr, value);
1015 * Enable all rx queue interrupt when in interrupt rx mode.
1016 * This api was called before enable queue rx&tx (in normal start or reset
1017 * recover scenes), used to fix hardware rx queue interrupt enable was clear
1021 hns3_dev_all_rx_queue_intr_enable(struct hns3_hw *hw, bool en)
1023 struct rte_eth_dev *dev = &rte_eth_devices[hw->data->port_id];
1024 uint16_t nb_rx_q = hw->data->nb_rx_queues;
1027 if (dev->data->dev_conf.intr_conf.rxq == 0)
1030 for (i = 0; i < nb_rx_q; i++)
1031 hns3_queue_intr_enable(hw, i, en);
1035 hns3_dev_rx_queue_intr_enable(struct rte_eth_dev *dev, uint16_t queue_id)
1037 struct rte_pci_device *pci_dev = RTE_ETH_DEV_TO_PCI(dev);
1038 struct rte_intr_handle *intr_handle = &pci_dev->intr_handle;
1039 struct hns3_hw *hw = HNS3_DEV_PRIVATE_TO_HW(dev->data->dev_private);
1041 if (dev->data->dev_conf.intr_conf.rxq == 0)
1044 hns3_queue_intr_enable(hw, queue_id, true);
1046 return rte_intr_ack(intr_handle);
1050 hns3_dev_rx_queue_intr_disable(struct rte_eth_dev *dev, uint16_t queue_id)
1052 struct hns3_hw *hw = HNS3_DEV_PRIVATE_TO_HW(dev->data->dev_private);
1054 if (dev->data->dev_conf.intr_conf.rxq == 0)
1057 hns3_queue_intr_enable(hw, queue_id, false);
1063 hns3_init_rxq(struct hns3_adapter *hns, uint16_t idx)
1065 struct hns3_hw *hw = &hns->hw;
1066 struct hns3_rx_queue *rxq;
1069 PMD_INIT_FUNC_TRACE();
1071 rxq = (struct hns3_rx_queue *)hw->data->rx_queues[idx];
1072 ret = hns3_alloc_rx_queue_mbufs(hw, rxq);
1074 hns3_err(hw, "fail to alloc mbuf for Rx queue %u, ret = %d.",
1079 rxq->next_to_use = 0;
1080 rxq->rx_rearm_start = 0;
1081 rxq->rx_free_hold = 0;
1082 rxq->rx_rearm_nb = 0;
1083 rxq->pkt_first_seg = NULL;
1084 rxq->pkt_last_seg = NULL;
1085 hns3_init_rx_queue_hw(rxq);
1086 hns3_rxq_vec_setup(rxq);
1092 hns3_init_fake_rxq(struct hns3_adapter *hns, uint16_t idx)
1094 struct hns3_hw *hw = &hns->hw;
1095 struct hns3_rx_queue *rxq;
1097 rxq = (struct hns3_rx_queue *)hw->fkq_data.rx_queues[idx];
1098 rxq->next_to_use = 0;
1099 rxq->rx_free_hold = 0;
1100 rxq->rx_rearm_start = 0;
1101 rxq->rx_rearm_nb = 0;
1102 hns3_init_rx_queue_hw(rxq);
1106 hns3_init_txq(struct hns3_tx_queue *txq)
1108 struct hns3_desc *desc;
1112 desc = txq->tx_ring;
1113 for (i = 0; i < txq->nb_tx_desc; i++) {
1114 desc->tx.tp_fe_sc_vld_ra_ri = 0;
1118 txq->next_to_use = 0;
1119 txq->next_to_clean = 0;
1120 txq->tx_bd_ready = txq->nb_tx_desc - 1;
1121 hns3_init_tx_queue_hw(txq);
1125 hns3_init_tx_ring_tc(struct hns3_adapter *hns)
1127 struct hns3_hw *hw = &hns->hw;
1128 struct hns3_tx_queue *txq;
1131 for (i = 0; i < HNS3_MAX_TC_NUM; i++) {
1132 struct hns3_tc_queue_info *tc_queue = &hw->tc_queue[i];
1135 if (!tc_queue->enable)
1138 for (j = 0; j < tc_queue->tqp_count; j++) {
1139 num = tc_queue->tqp_offset + j;
1140 txq = (struct hns3_tx_queue *)hw->data->tx_queues[num];
1144 hns3_write_dev(txq, HNS3_RING_TX_TC_REG, tc_queue->tc);
1150 hns3_init_rx_queues(struct hns3_adapter *hns)
1152 struct hns3_hw *hw = &hns->hw;
1153 struct hns3_rx_queue *rxq;
1157 /* Initialize RSS for queues */
1158 ret = hns3_config_rss(hns);
1160 hns3_err(hw, "failed to configure rss, ret = %d.", ret);
1164 for (i = 0; i < hw->data->nb_rx_queues; i++) {
1165 rxq = (struct hns3_rx_queue *)hw->data->rx_queues[i];
1167 hns3_err(hw, "Rx queue %u not available or setup.", i);
1171 if (rxq->rx_deferred_start)
1174 ret = hns3_init_rxq(hns, i);
1176 hns3_err(hw, "failed to init Rx queue %u, ret = %d.", i,
1182 for (i = 0; i < hw->fkq_data.nb_fake_rx_queues; i++)
1183 hns3_init_fake_rxq(hns, i);
1188 for (j = 0; j < i; j++) {
1189 rxq = (struct hns3_rx_queue *)hw->data->rx_queues[j];
1190 hns3_rx_queue_release_mbufs(rxq);
1197 hns3_init_tx_queues(struct hns3_adapter *hns)
1199 struct hns3_hw *hw = &hns->hw;
1200 struct hns3_tx_queue *txq;
1203 for (i = 0; i < hw->data->nb_tx_queues; i++) {
1204 txq = (struct hns3_tx_queue *)hw->data->tx_queues[i];
1206 hns3_err(hw, "Tx queue %u not available or setup.", i);
1210 if (txq->tx_deferred_start)
1215 for (i = 0; i < hw->fkq_data.nb_fake_tx_queues; i++) {
1216 txq = (struct hns3_tx_queue *)hw->fkq_data.tx_queues[i];
1219 hns3_init_tx_ring_tc(hns);
1226 * Note: just init and setup queues, and don't enable tqps.
1229 hns3_init_queues(struct hns3_adapter *hns, bool reset_queue)
1231 struct hns3_hw *hw = &hns->hw;
1235 ret = hns3_reset_all_tqps(hns);
1237 hns3_err(hw, "failed to reset all queues, ret = %d.",
1243 ret = hns3_init_rx_queues(hns);
1245 hns3_err(hw, "failed to init rx queues, ret = %d.", ret);
1249 ret = hns3_init_tx_queues(hns);
1251 hns3_dev_release_mbufs(hns);
1252 hns3_err(hw, "failed to init tx queues, ret = %d.", ret);
1259 hns3_start_tqps(struct hns3_hw *hw)
1261 struct hns3_tx_queue *txq;
1262 struct hns3_rx_queue *rxq;
1265 hns3_enable_all_queues(hw, true);
1267 for (i = 0; i < hw->data->nb_tx_queues; i++) {
1268 txq = hw->data->tx_queues[i];
1270 hw->data->tx_queue_state[i] =
1271 RTE_ETH_QUEUE_STATE_STARTED;
1274 for (i = 0; i < hw->data->nb_rx_queues; i++) {
1275 rxq = hw->data->rx_queues[i];
1277 hw->data->rx_queue_state[i] =
1278 RTE_ETH_QUEUE_STATE_STARTED;
1283 hns3_stop_tqps(struct hns3_hw *hw)
1287 hns3_enable_all_queues(hw, false);
1289 for (i = 0; i < hw->data->nb_tx_queues; i++)
1290 hw->data->tx_queue_state[i] = RTE_ETH_QUEUE_STATE_STOPPED;
1292 for (i = 0; i < hw->data->nb_rx_queues; i++)
1293 hw->data->rx_queue_state[i] = RTE_ETH_QUEUE_STATE_STOPPED;
1297 * Iterate over all Rx Queue, and call the callback() function for each Rx
1301 * The target eth dev.
1302 * @param[in] callback
1303 * The function to call for each queue.
1304 * if callback function return nonzero will stop iterate and return it's value
1306 * The arguments to provide the callback function with.
1309 * 0 on success, otherwise with errno set.
1312 hns3_rxq_iterate(struct rte_eth_dev *dev,
1313 int (*callback)(struct hns3_rx_queue *, void *), void *arg)
1318 if (dev->data->rx_queues == NULL)
1321 for (i = 0; i < dev->data->nb_rx_queues; i++) {
1322 ret = callback(dev->data->rx_queues[i], arg);
1331 hns3_alloc_rxq_and_dma_zone(struct rte_eth_dev *dev,
1332 struct hns3_queue_info *q_info)
1334 struct hns3_hw *hw = HNS3_DEV_PRIVATE_TO_HW(dev->data->dev_private);
1335 const struct rte_memzone *rx_mz;
1336 struct hns3_rx_queue *rxq;
1337 unsigned int rx_desc;
1339 rxq = rte_zmalloc_socket(q_info->type, sizeof(struct hns3_rx_queue),
1340 RTE_CACHE_LINE_SIZE, q_info->socket_id);
1342 hns3_err(hw, "Failed to allocate memory for No.%u rx ring!",
1347 /* Allocate rx ring hardware descriptors. */
1348 rxq->queue_id = q_info->idx;
1349 rxq->nb_rx_desc = q_info->nb_desc;
1352 * Allocate a litter more memory because rx vector functions
1353 * don't check boundaries each time.
1355 rx_desc = (rxq->nb_rx_desc + HNS3_DEFAULT_RX_BURST) *
1356 sizeof(struct hns3_desc);
1357 rx_mz = rte_eth_dma_zone_reserve(dev, q_info->ring_name, q_info->idx,
1358 rx_desc, HNS3_RING_BASE_ALIGN,
1360 if (rx_mz == NULL) {
1361 hns3_err(hw, "Failed to reserve DMA memory for No.%u rx ring!",
1363 hns3_rx_queue_release(rxq);
1367 rxq->rx_ring = (struct hns3_desc *)rx_mz->addr;
1368 rxq->rx_ring_phys_addr = rx_mz->iova;
1370 hns3_dbg(hw, "No.%u rx descriptors iova 0x%" PRIx64, q_info->idx,
1371 rxq->rx_ring_phys_addr);
1377 hns3_fake_rx_queue_setup(struct rte_eth_dev *dev, uint16_t idx,
1378 uint16_t nb_desc, unsigned int socket_id)
1380 struct hns3_adapter *hns = dev->data->dev_private;
1381 struct hns3_hw *hw = &hns->hw;
1382 struct hns3_queue_info q_info;
1383 struct hns3_rx_queue *rxq;
1386 if (hw->fkq_data.rx_queues[idx]) {
1387 hns3_rx_queue_release(hw->fkq_data.rx_queues[idx]);
1388 hw->fkq_data.rx_queues[idx] = NULL;
1392 q_info.socket_id = socket_id;
1393 q_info.nb_desc = nb_desc;
1394 q_info.type = "hns3 fake RX queue";
1395 q_info.ring_name = "rx_fake_ring";
1396 rxq = hns3_alloc_rxq_and_dma_zone(dev, &q_info);
1398 hns3_err(hw, "Failed to setup No.%u fake rx ring.", idx);
1402 /* Don't need alloc sw_ring, because upper applications don't use it */
1403 rxq->sw_ring = NULL;
1406 rxq->rx_deferred_start = false;
1407 rxq->port_id = dev->data->port_id;
1408 rxq->configured = true;
1409 nb_rx_q = dev->data->nb_rx_queues;
1410 rxq->io_base = (void *)((char *)hw->io_base + HNS3_TQP_REG_OFFSET +
1411 (nb_rx_q + idx) * HNS3_TQP_REG_SIZE);
1412 rxq->rx_buf_len = HNS3_MIN_BD_BUF_SIZE;
1414 rte_spinlock_lock(&hw->lock);
1415 hw->fkq_data.rx_queues[idx] = rxq;
1416 rte_spinlock_unlock(&hw->lock);
1422 hns3_alloc_txq_and_dma_zone(struct rte_eth_dev *dev,
1423 struct hns3_queue_info *q_info)
1425 struct hns3_hw *hw = HNS3_DEV_PRIVATE_TO_HW(dev->data->dev_private);
1426 const struct rte_memzone *tx_mz;
1427 struct hns3_tx_queue *txq;
1428 struct hns3_desc *desc;
1429 unsigned int tx_desc;
1432 txq = rte_zmalloc_socket(q_info->type, sizeof(struct hns3_tx_queue),
1433 RTE_CACHE_LINE_SIZE, q_info->socket_id);
1435 hns3_err(hw, "Failed to allocate memory for No.%u tx ring!",
1440 /* Allocate tx ring hardware descriptors. */
1441 txq->queue_id = q_info->idx;
1442 txq->nb_tx_desc = q_info->nb_desc;
1443 tx_desc = txq->nb_tx_desc * sizeof(struct hns3_desc);
1444 tx_mz = rte_eth_dma_zone_reserve(dev, q_info->ring_name, q_info->idx,
1445 tx_desc, HNS3_RING_BASE_ALIGN,
1447 if (tx_mz == NULL) {
1448 hns3_err(hw, "Failed to reserve DMA memory for No.%u tx ring!",
1450 hns3_tx_queue_release(txq);
1454 txq->tx_ring = (struct hns3_desc *)tx_mz->addr;
1455 txq->tx_ring_phys_addr = tx_mz->iova;
1457 hns3_dbg(hw, "No.%u tx descriptors iova 0x%" PRIx64, q_info->idx,
1458 txq->tx_ring_phys_addr);
1461 desc = txq->tx_ring;
1462 for (i = 0; i < txq->nb_tx_desc; i++) {
1463 desc->tx.tp_fe_sc_vld_ra_ri = 0;
1471 hns3_fake_tx_queue_setup(struct rte_eth_dev *dev, uint16_t idx,
1472 uint16_t nb_desc, unsigned int socket_id)
1474 struct hns3_adapter *hns = dev->data->dev_private;
1475 struct hns3_hw *hw = &hns->hw;
1476 struct hns3_queue_info q_info;
1477 struct hns3_tx_queue *txq;
1480 if (hw->fkq_data.tx_queues[idx] != NULL) {
1481 hns3_tx_queue_release(hw->fkq_data.tx_queues[idx]);
1482 hw->fkq_data.tx_queues[idx] = NULL;
1486 q_info.socket_id = socket_id;
1487 q_info.nb_desc = nb_desc;
1488 q_info.type = "hns3 fake TX queue";
1489 q_info.ring_name = "tx_fake_ring";
1490 txq = hns3_alloc_txq_and_dma_zone(dev, &q_info);
1492 hns3_err(hw, "Failed to setup No.%u fake tx ring.", idx);
1496 /* Don't need alloc sw_ring, because upper applications don't use it */
1497 txq->sw_ring = NULL;
1501 txq->tx_deferred_start = false;
1502 txq->port_id = dev->data->port_id;
1503 txq->configured = true;
1504 nb_tx_q = dev->data->nb_tx_queues;
1505 txq->io_base = (void *)((char *)hw->io_base + HNS3_TQP_REG_OFFSET +
1506 (nb_tx_q + idx) * HNS3_TQP_REG_SIZE);
1508 rte_spinlock_lock(&hw->lock);
1509 hw->fkq_data.tx_queues[idx] = txq;
1510 rte_spinlock_unlock(&hw->lock);
1516 hns3_fake_rx_queue_config(struct hns3_hw *hw, uint16_t nb_queues)
1518 uint16_t old_nb_queues = hw->fkq_data.nb_fake_rx_queues;
1522 if (hw->fkq_data.rx_queues == NULL && nb_queues != 0) {
1523 /* first time configuration */
1525 size = sizeof(hw->fkq_data.rx_queues[0]) * nb_queues;
1526 hw->fkq_data.rx_queues = rte_zmalloc("fake_rx_queues", size,
1527 RTE_CACHE_LINE_SIZE);
1528 if (hw->fkq_data.rx_queues == NULL) {
1529 hw->fkq_data.nb_fake_rx_queues = 0;
1532 } else if (hw->fkq_data.rx_queues != NULL && nb_queues != 0) {
1534 rxq = hw->fkq_data.rx_queues;
1535 for (i = nb_queues; i < old_nb_queues; i++)
1536 hns3_dev_rx_queue_release(rxq[i]);
1538 rxq = rte_realloc(rxq, sizeof(rxq[0]) * nb_queues,
1539 RTE_CACHE_LINE_SIZE);
1542 if (nb_queues > old_nb_queues) {
1543 uint16_t new_qs = nb_queues - old_nb_queues;
1544 memset(rxq + old_nb_queues, 0, sizeof(rxq[0]) * new_qs);
1547 hw->fkq_data.rx_queues = rxq;
1548 } else if (hw->fkq_data.rx_queues != NULL && nb_queues == 0) {
1549 rxq = hw->fkq_data.rx_queues;
1550 for (i = nb_queues; i < old_nb_queues; i++)
1551 hns3_dev_rx_queue_release(rxq[i]);
1553 rte_free(hw->fkq_data.rx_queues);
1554 hw->fkq_data.rx_queues = NULL;
1557 hw->fkq_data.nb_fake_rx_queues = nb_queues;
1563 hns3_fake_tx_queue_config(struct hns3_hw *hw, uint16_t nb_queues)
1565 uint16_t old_nb_queues = hw->fkq_data.nb_fake_tx_queues;
1569 if (hw->fkq_data.tx_queues == NULL && nb_queues != 0) {
1570 /* first time configuration */
1572 size = sizeof(hw->fkq_data.tx_queues[0]) * nb_queues;
1573 hw->fkq_data.tx_queues = rte_zmalloc("fake_tx_queues", size,
1574 RTE_CACHE_LINE_SIZE);
1575 if (hw->fkq_data.tx_queues == NULL) {
1576 hw->fkq_data.nb_fake_tx_queues = 0;
1579 } else if (hw->fkq_data.tx_queues != NULL && nb_queues != 0) {
1581 txq = hw->fkq_data.tx_queues;
1582 for (i = nb_queues; i < old_nb_queues; i++)
1583 hns3_dev_tx_queue_release(txq[i]);
1584 txq = rte_realloc(txq, sizeof(txq[0]) * nb_queues,
1585 RTE_CACHE_LINE_SIZE);
1588 if (nb_queues > old_nb_queues) {
1589 uint16_t new_qs = nb_queues - old_nb_queues;
1590 memset(txq + old_nb_queues, 0, sizeof(txq[0]) * new_qs);
1593 hw->fkq_data.tx_queues = txq;
1594 } else if (hw->fkq_data.tx_queues != NULL && nb_queues == 0) {
1595 txq = hw->fkq_data.tx_queues;
1596 for (i = nb_queues; i < old_nb_queues; i++)
1597 hns3_dev_tx_queue_release(txq[i]);
1599 rte_free(hw->fkq_data.tx_queues);
1600 hw->fkq_data.tx_queues = NULL;
1602 hw->fkq_data.nb_fake_tx_queues = nb_queues;
1608 hns3_set_fake_rx_or_tx_queues(struct rte_eth_dev *dev, uint16_t nb_rx_q,
1611 struct hns3_hw *hw = HNS3_DEV_PRIVATE_TO_HW(dev->data->dev_private);
1612 uint16_t rx_need_add_nb_q;
1613 uint16_t tx_need_add_nb_q;
1618 /* Setup new number of fake RX/TX queues and reconfigure device. */
1619 rx_need_add_nb_q = hw->cfg_max_queues - nb_rx_q;
1620 tx_need_add_nb_q = hw->cfg_max_queues - nb_tx_q;
1621 ret = hns3_fake_rx_queue_config(hw, rx_need_add_nb_q);
1623 hns3_err(hw, "Fail to configure fake rx queues: %d", ret);
1627 ret = hns3_fake_tx_queue_config(hw, tx_need_add_nb_q);
1629 hns3_err(hw, "Fail to configure fake rx queues: %d", ret);
1630 goto cfg_fake_tx_q_fail;
1633 /* Allocate and set up fake RX queue per Ethernet port. */
1634 port_id = hw->data->port_id;
1635 for (q = 0; q < rx_need_add_nb_q; q++) {
1636 ret = hns3_fake_rx_queue_setup(dev, q, HNS3_MIN_RING_DESC,
1637 rte_eth_dev_socket_id(port_id));
1639 goto setup_fake_rx_q_fail;
1642 /* Allocate and set up fake TX queue per Ethernet port. */
1643 for (q = 0; q < tx_need_add_nb_q; q++) {
1644 ret = hns3_fake_tx_queue_setup(dev, q, HNS3_MIN_RING_DESC,
1645 rte_eth_dev_socket_id(port_id));
1647 goto setup_fake_tx_q_fail;
1652 setup_fake_tx_q_fail:
1653 setup_fake_rx_q_fail:
1654 (void)hns3_fake_tx_queue_config(hw, 0);
1656 (void)hns3_fake_rx_queue_config(hw, 0);
1662 hns3_dev_release_mbufs(struct hns3_adapter *hns)
1664 struct rte_eth_dev_data *dev_data = hns->hw.data;
1665 struct hns3_rx_queue *rxq;
1666 struct hns3_tx_queue *txq;
1669 if (dev_data->rx_queues)
1670 for (i = 0; i < dev_data->nb_rx_queues; i++) {
1671 rxq = dev_data->rx_queues[i];
1674 hns3_rx_queue_release_mbufs(rxq);
1677 if (dev_data->tx_queues)
1678 for (i = 0; i < dev_data->nb_tx_queues; i++) {
1679 txq = dev_data->tx_queues[i];
1682 hns3_tx_queue_release_mbufs(txq);
1687 hns3_rx_buf_len_calc(struct rte_mempool *mp, uint16_t *rx_buf_len)
1689 uint16_t vld_buf_size;
1690 uint16_t num_hw_specs;
1694 * hns3 network engine only support to set 4 typical specification, and
1695 * different buffer size will affect the max packet_len and the max
1696 * number of segmentation when hw gro is turned on in receive side. The
1697 * relationship between them is as follows:
1698 * rx_buf_size | max_gro_pkt_len | max_gro_nb_seg
1699 * ---------------------|-------------------|----------------
1700 * HNS3_4K_BD_BUF_SIZE | 60KB | 15
1701 * HNS3_2K_BD_BUF_SIZE | 62KB | 31
1702 * HNS3_1K_BD_BUF_SIZE | 63KB | 63
1703 * HNS3_512_BD_BUF_SIZE | 31.5KB | 63
1705 static const uint16_t hw_rx_buf_size[] = {
1706 HNS3_4K_BD_BUF_SIZE,
1707 HNS3_2K_BD_BUF_SIZE,
1708 HNS3_1K_BD_BUF_SIZE,
1709 HNS3_512_BD_BUF_SIZE
1712 vld_buf_size = (uint16_t)(rte_pktmbuf_data_room_size(mp) -
1713 RTE_PKTMBUF_HEADROOM);
1714 if (vld_buf_size < HNS3_MIN_BD_BUF_SIZE)
1717 num_hw_specs = RTE_DIM(hw_rx_buf_size);
1718 for (i = 0; i < num_hw_specs; i++) {
1719 if (vld_buf_size >= hw_rx_buf_size[i]) {
1720 *rx_buf_len = hw_rx_buf_size[i];
1728 hns3_rxq_conf_runtime_check(struct hns3_hw *hw, uint16_t buf_size,
1731 struct rte_eth_dev *dev = &rte_eth_devices[hw->data->port_id];
1732 struct rte_eth_rxmode *rxmode = &hw->data->dev_conf.rxmode;
1733 eth_rx_burst_t pkt_burst = dev->rx_pkt_burst;
1734 uint16_t min_vec_bds;
1737 * HNS3 hardware network engine set scattered as default. If the driver
1738 * is not work in scattered mode and the pkts greater than buf_size
1739 * but smaller than max_rx_pkt_len will be distributed to multiple BDs.
1740 * Driver cannot handle this situation.
1742 if (!hw->data->scattered_rx && rxmode->max_rx_pkt_len > buf_size) {
1743 hns3_err(hw, "max_rx_pkt_len is not allowed to be set greater "
1744 "than rx_buf_len if scattered is off.");
1748 if (pkt_burst == hns3_recv_pkts_vec) {
1749 min_vec_bds = HNS3_DEFAULT_RXQ_REARM_THRESH +
1750 HNS3_DEFAULT_RX_BURST;
1751 if (nb_desc < min_vec_bds ||
1752 nb_desc % HNS3_DEFAULT_RXQ_REARM_THRESH) {
1753 hns3_err(hw, "if Rx burst mode is vector, "
1754 "number of descriptor is required to be "
1755 "bigger than min vector bds:%u, and could be "
1756 "divided by rxq rearm thresh:%u.",
1757 min_vec_bds, HNS3_DEFAULT_RXQ_REARM_THRESH);
1765 hns3_rx_queue_conf_check(struct hns3_hw *hw, const struct rte_eth_rxconf *conf,
1766 struct rte_mempool *mp, uint16_t nb_desc,
1771 if (nb_desc > HNS3_MAX_RING_DESC || nb_desc < HNS3_MIN_RING_DESC ||
1772 nb_desc % HNS3_ALIGN_RING_DESC) {
1773 hns3_err(hw, "Number (%u) of rx descriptors is invalid",
1778 if (conf->rx_drop_en == 0)
1779 hns3_warn(hw, "if no descriptors available, packets are always "
1780 "dropped and rx_drop_en (1) is fixed on");
1782 if (hns3_rx_buf_len_calc(mp, buf_size)) {
1783 hns3_err(hw, "rxq mbufs' data room size (%u) is not enough! "
1784 "minimal data room size (%u).",
1785 rte_pktmbuf_data_room_size(mp),
1786 HNS3_MIN_BD_BUF_SIZE + RTE_PKTMBUF_HEADROOM);
1790 if (hw->data->dev_started) {
1791 ret = hns3_rxq_conf_runtime_check(hw, *buf_size, nb_desc);
1793 hns3_err(hw, "Rx queue runtime setup fail.");
1802 hns3_get_tqp_reg_offset(uint16_t queue_id)
1804 uint32_t reg_offset;
1806 /* Need an extend offset to config queue > 1024 */
1807 if (queue_id < HNS3_MIN_EXTEND_QUEUE_ID)
1808 reg_offset = HNS3_TQP_REG_OFFSET + queue_id * HNS3_TQP_REG_SIZE;
1810 reg_offset = HNS3_TQP_REG_OFFSET + HNS3_TQP_EXT_REG_OFFSET +
1811 (queue_id - HNS3_MIN_EXTEND_QUEUE_ID) *
1818 hns3_rx_queue_setup(struct rte_eth_dev *dev, uint16_t idx, uint16_t nb_desc,
1819 unsigned int socket_id, const struct rte_eth_rxconf *conf,
1820 struct rte_mempool *mp)
1822 struct hns3_adapter *hns = dev->data->dev_private;
1823 struct hns3_hw *hw = &hns->hw;
1824 struct hns3_queue_info q_info;
1825 struct hns3_rx_queue *rxq;
1826 uint16_t rx_buf_size;
1830 ret = hns3_rx_queue_conf_check(hw, conf, mp, nb_desc, &rx_buf_size);
1834 if (dev->data->rx_queues[idx]) {
1835 hns3_rx_queue_release(dev->data->rx_queues[idx]);
1836 dev->data->rx_queues[idx] = NULL;
1840 q_info.socket_id = socket_id;
1841 q_info.nb_desc = nb_desc;
1842 q_info.type = "hns3 RX queue";
1843 q_info.ring_name = "rx_ring";
1845 rxq = hns3_alloc_rxq_and_dma_zone(dev, &q_info);
1848 "Failed to alloc mem and reserve DMA mem for rx ring!");
1853 rxq->ptype_tbl = &hns->ptype_tbl;
1855 rxq->rx_free_thresh = (conf->rx_free_thresh > 0) ?
1856 conf->rx_free_thresh : HNS3_DEFAULT_RX_FREE_THRESH;
1858 rxq->rx_deferred_start = conf->rx_deferred_start;
1859 if (rxq->rx_deferred_start && !hns3_dev_indep_txrx_supported(hw)) {
1860 hns3_warn(hw, "deferred start is not supported.");
1861 rxq->rx_deferred_start = false;
1864 rx_entry_len = (rxq->nb_rx_desc + HNS3_DEFAULT_RX_BURST) *
1865 sizeof(struct hns3_entry);
1866 rxq->sw_ring = rte_zmalloc_socket("hns3 RX sw ring", rx_entry_len,
1867 RTE_CACHE_LINE_SIZE, socket_id);
1868 if (rxq->sw_ring == NULL) {
1869 hns3_err(hw, "Failed to allocate memory for rx sw ring!");
1870 hns3_rx_queue_release(rxq);
1874 rxq->next_to_use = 0;
1875 rxq->rx_free_hold = 0;
1876 rxq->rx_rearm_start = 0;
1877 rxq->rx_rearm_nb = 0;
1878 rxq->pkt_first_seg = NULL;
1879 rxq->pkt_last_seg = NULL;
1880 rxq->port_id = dev->data->port_id;
1882 * For hns3 PF device, if the VLAN mode is HW_SHIFT_AND_DISCARD_MODE,
1883 * the pvid_sw_discard_en in the queue struct should not be changed,
1884 * because PVID-related operations do not need to be processed by PMD
1885 * driver. For hns3 VF device, whether it needs to process PVID depends
1886 * on the configuration of PF kernel mode netdevice driver. And the
1887 * related PF configuration is delivered through the mailbox and finally
1888 * reflectd in port_base_vlan_cfg.
1890 if (hns->is_vf || hw->vlan_mode == HNS3_SW_SHIFT_AND_DISCARD_MODE)
1891 rxq->pvid_sw_discard_en = hw->port_base_vlan_cfg.state ==
1892 HNS3_PORT_BASE_VLAN_ENABLE;
1894 rxq->pvid_sw_discard_en = false;
1895 rxq->ptype_en = hns3_dev_rxd_adv_layout_supported(hw) ? true : false;
1896 rxq->configured = true;
1897 rxq->io_base = (void *)((char *)hw->io_base + HNS3_TQP_REG_OFFSET +
1898 idx * HNS3_TQP_REG_SIZE);
1899 rxq->io_base = (void *)((char *)hw->io_base +
1900 hns3_get_tqp_reg_offset(idx));
1901 rxq->io_head_reg = (volatile void *)((char *)rxq->io_base +
1902 HNS3_RING_RX_HEAD_REG);
1903 rxq->rx_buf_len = rx_buf_size;
1904 memset(&rxq->basic_stats, 0, sizeof(struct hns3_rx_basic_stats));
1905 memset(&rxq->err_stats, 0, sizeof(struct hns3_rx_bd_errors_stats));
1906 memset(&rxq->dfx_stats, 0, sizeof(struct hns3_rx_dfx_stats));
1908 /* CRC len set here is used for amending packet length */
1909 if (dev->data->dev_conf.rxmode.offloads & DEV_RX_OFFLOAD_KEEP_CRC)
1910 rxq->crc_len = RTE_ETHER_CRC_LEN;
1914 rxq->bulk_mbuf_num = 0;
1916 rte_spinlock_lock(&hw->lock);
1917 dev->data->rx_queues[idx] = rxq;
1918 rte_spinlock_unlock(&hw->lock);
1924 hns3_rx_scattered_reset(struct rte_eth_dev *dev)
1926 struct hns3_adapter *hns = dev->data->dev_private;
1927 struct hns3_hw *hw = &hns->hw;
1930 dev->data->scattered_rx = false;
1934 hns3_rx_scattered_calc(struct rte_eth_dev *dev)
1936 struct rte_eth_conf *dev_conf = &dev->data->dev_conf;
1937 struct hns3_adapter *hns = dev->data->dev_private;
1938 struct hns3_hw *hw = &hns->hw;
1939 struct hns3_rx_queue *rxq;
1942 if (dev->data->rx_queues == NULL)
1945 for (queue_id = 0; queue_id < dev->data->nb_rx_queues; queue_id++) {
1946 rxq = dev->data->rx_queues[queue_id];
1947 if (hw->rx_buf_len == 0)
1948 hw->rx_buf_len = rxq->rx_buf_len;
1950 hw->rx_buf_len = RTE_MIN(hw->rx_buf_len,
1954 if (dev_conf->rxmode.offloads & DEV_RX_OFFLOAD_SCATTER ||
1955 dev_conf->rxmode.max_rx_pkt_len > hw->rx_buf_len)
1956 dev->data->scattered_rx = true;
1960 hns3_dev_supported_ptypes_get(struct rte_eth_dev *dev)
1962 static const uint32_t ptypes[] = {
1964 RTE_PTYPE_L2_ETHER_VLAN,
1965 RTE_PTYPE_L2_ETHER_QINQ,
1966 RTE_PTYPE_L2_ETHER_LLDP,
1967 RTE_PTYPE_L2_ETHER_ARP,
1969 RTE_PTYPE_L3_IPV4_EXT,
1971 RTE_PTYPE_L3_IPV6_EXT,
1977 RTE_PTYPE_TUNNEL_GRE,
1978 RTE_PTYPE_INNER_L2_ETHER,
1979 RTE_PTYPE_INNER_L2_ETHER_VLAN,
1980 RTE_PTYPE_INNER_L2_ETHER_QINQ,
1981 RTE_PTYPE_INNER_L3_IPV4,
1982 RTE_PTYPE_INNER_L3_IPV6,
1983 RTE_PTYPE_INNER_L3_IPV4_EXT,
1984 RTE_PTYPE_INNER_L3_IPV6_EXT,
1985 RTE_PTYPE_INNER_L4_UDP,
1986 RTE_PTYPE_INNER_L4_TCP,
1987 RTE_PTYPE_INNER_L4_SCTP,
1988 RTE_PTYPE_INNER_L4_ICMP,
1989 RTE_PTYPE_TUNNEL_VXLAN,
1990 RTE_PTYPE_TUNNEL_NVGRE,
1994 if (dev->rx_pkt_burst == hns3_recv_pkts ||
1995 dev->rx_pkt_burst == hns3_recv_scattered_pkts ||
1996 dev->rx_pkt_burst == hns3_recv_pkts_vec ||
1997 dev->rx_pkt_burst == hns3_recv_pkts_vec_sve)
2004 hns3_init_non_tunnel_ptype_tbl(struct hns3_ptype_table *tbl)
2006 tbl->l3table[0] = RTE_PTYPE_L2_ETHER | RTE_PTYPE_L3_IPV4;
2007 tbl->l3table[1] = RTE_PTYPE_L2_ETHER | RTE_PTYPE_L3_IPV6;
2008 tbl->l3table[2] = RTE_PTYPE_L2_ETHER_ARP;
2009 tbl->l3table[4] = RTE_PTYPE_L2_ETHER | RTE_PTYPE_L3_IPV4_EXT;
2010 tbl->l3table[5] = RTE_PTYPE_L2_ETHER | RTE_PTYPE_L3_IPV6_EXT;
2011 tbl->l3table[6] = RTE_PTYPE_L2_ETHER_LLDP;
2013 tbl->l4table[0] = RTE_PTYPE_L4_UDP;
2014 tbl->l4table[1] = RTE_PTYPE_L4_TCP;
2015 tbl->l4table[2] = RTE_PTYPE_TUNNEL_GRE;
2016 tbl->l4table[3] = RTE_PTYPE_L4_SCTP;
2017 tbl->l4table[4] = RTE_PTYPE_L4_IGMP;
2018 tbl->l4table[5] = RTE_PTYPE_L4_ICMP;
2022 hns3_init_tunnel_ptype_tbl(struct hns3_ptype_table *tbl)
2024 tbl->inner_l3table[0] = RTE_PTYPE_INNER_L2_ETHER |
2025 RTE_PTYPE_INNER_L3_IPV4;
2026 tbl->inner_l3table[1] = RTE_PTYPE_INNER_L2_ETHER |
2027 RTE_PTYPE_INNER_L3_IPV6;
2028 /* There is not a ptype for inner ARP/RARP */
2029 tbl->inner_l3table[2] = RTE_PTYPE_UNKNOWN;
2030 tbl->inner_l3table[3] = RTE_PTYPE_UNKNOWN;
2031 tbl->inner_l3table[4] = RTE_PTYPE_INNER_L2_ETHER |
2032 RTE_PTYPE_INNER_L3_IPV4_EXT;
2033 tbl->inner_l3table[5] = RTE_PTYPE_INNER_L2_ETHER |
2034 RTE_PTYPE_INNER_L3_IPV6_EXT;
2036 tbl->inner_l4table[0] = RTE_PTYPE_INNER_L4_UDP;
2037 tbl->inner_l4table[1] = RTE_PTYPE_INNER_L4_TCP;
2038 /* There is not a ptype for inner GRE */
2039 tbl->inner_l4table[2] = RTE_PTYPE_UNKNOWN;
2040 tbl->inner_l4table[3] = RTE_PTYPE_INNER_L4_SCTP;
2041 /* There is not a ptype for inner IGMP */
2042 tbl->inner_l4table[4] = RTE_PTYPE_UNKNOWN;
2043 tbl->inner_l4table[5] = RTE_PTYPE_INNER_L4_ICMP;
2045 tbl->ol3table[0] = RTE_PTYPE_L2_ETHER | RTE_PTYPE_L3_IPV4;
2046 tbl->ol3table[1] = RTE_PTYPE_L2_ETHER | RTE_PTYPE_L3_IPV6;
2047 tbl->ol3table[2] = RTE_PTYPE_UNKNOWN;
2048 tbl->ol3table[3] = RTE_PTYPE_UNKNOWN;
2049 tbl->ol3table[4] = RTE_PTYPE_L2_ETHER | RTE_PTYPE_L3_IPV4_EXT;
2050 tbl->ol3table[5] = RTE_PTYPE_L2_ETHER | RTE_PTYPE_L3_IPV6_EXT;
2052 tbl->ol4table[0] = RTE_PTYPE_UNKNOWN;
2053 tbl->ol4table[1] = RTE_PTYPE_TUNNEL_VXLAN;
2054 tbl->ol4table[2] = RTE_PTYPE_TUNNEL_NVGRE;
2058 hns3_init_adv_layout_ptype(struct hns3_ptype_table *tbl)
2060 uint32_t *ptype = tbl->ptype;
2063 ptype[1] = RTE_PTYPE_L2_ETHER_ARP;
2064 ptype[3] = RTE_PTYPE_L2_ETHER_LLDP;
2065 ptype[8] = RTE_PTYPE_L2_ETHER_TIMESYNC;
2067 /* Non-tunnel IPv4 */
2068 ptype[17] = RTE_PTYPE_L2_ETHER | RTE_PTYPE_L3_IPV4_EXT_UNKNOWN |
2070 ptype[18] = RTE_PTYPE_L2_ETHER | RTE_PTYPE_L3_IPV4_EXT_UNKNOWN |
2071 RTE_PTYPE_L4_NONFRAG;
2072 ptype[19] = RTE_PTYPE_L2_ETHER | RTE_PTYPE_L3_IPV4_EXT_UNKNOWN |
2074 ptype[20] = RTE_PTYPE_L2_ETHER | RTE_PTYPE_L3_IPV4_EXT_UNKNOWN |
2076 /* The next ptype is GRE over IPv4 */
2077 ptype[21] = RTE_PTYPE_L2_ETHER | RTE_PTYPE_L3_IPV4_EXT_UNKNOWN;
2078 ptype[22] = RTE_PTYPE_L2_ETHER | RTE_PTYPE_L3_IPV4_EXT_UNKNOWN |
2080 ptype[23] = RTE_PTYPE_L2_ETHER | RTE_PTYPE_L3_IPV4_EXT_UNKNOWN |
2082 ptype[24] = RTE_PTYPE_L2_ETHER | RTE_PTYPE_L3_IPV4_EXT_UNKNOWN |
2084 /* The next ptype is PTP over IPv4 + UDP */
2085 ptype[25] = RTE_PTYPE_L2_ETHER | RTE_PTYPE_L3_IPV4_EXT_UNKNOWN |
2088 /* IPv4 --> GRE/Teredo/VXLAN */
2089 ptype[29] = RTE_PTYPE_L2_ETHER | RTE_PTYPE_L3_IPV4_EXT_UNKNOWN |
2090 RTE_PTYPE_TUNNEL_GRENAT;
2091 /* IPv4 --> GRE/Teredo/VXLAN --> MAC */
2092 ptype[30] = RTE_PTYPE_L2_ETHER | RTE_PTYPE_L3_IPV4_EXT_UNKNOWN |
2093 RTE_PTYPE_TUNNEL_GRENAT | RTE_PTYPE_INNER_L2_ETHER;
2095 /* IPv4 --> GRE/Teredo/VXLAN --> MAC --> IPv4 */
2096 ptype[31] = RTE_PTYPE_L2_ETHER | RTE_PTYPE_L3_IPV4_EXT_UNKNOWN |
2097 RTE_PTYPE_TUNNEL_GRENAT | RTE_PTYPE_INNER_L2_ETHER |
2098 RTE_PTYPE_INNER_L3_IPV4_EXT_UNKNOWN |
2099 RTE_PTYPE_INNER_L4_FRAG;
2100 ptype[32] = RTE_PTYPE_L2_ETHER | RTE_PTYPE_L3_IPV4_EXT_UNKNOWN |
2101 RTE_PTYPE_TUNNEL_GRENAT | RTE_PTYPE_INNER_L2_ETHER |
2102 RTE_PTYPE_INNER_L3_IPV4_EXT_UNKNOWN |
2103 RTE_PTYPE_INNER_L4_NONFRAG;
2104 ptype[33] = RTE_PTYPE_L2_ETHER | RTE_PTYPE_L3_IPV4_EXT_UNKNOWN |
2105 RTE_PTYPE_TUNNEL_GRENAT | RTE_PTYPE_INNER_L2_ETHER |
2106 RTE_PTYPE_INNER_L3_IPV4_EXT_UNKNOWN |
2107 RTE_PTYPE_INNER_L4_UDP;
2108 ptype[34] = RTE_PTYPE_L2_ETHER | RTE_PTYPE_L3_IPV4_EXT_UNKNOWN |
2109 RTE_PTYPE_TUNNEL_GRENAT | RTE_PTYPE_INNER_L2_ETHER |
2110 RTE_PTYPE_INNER_L3_IPV4_EXT_UNKNOWN |
2111 RTE_PTYPE_INNER_L4_TCP;
2112 ptype[35] = RTE_PTYPE_L2_ETHER | RTE_PTYPE_L3_IPV4_EXT_UNKNOWN |
2113 RTE_PTYPE_TUNNEL_GRENAT | RTE_PTYPE_INNER_L2_ETHER |
2114 RTE_PTYPE_INNER_L3_IPV4_EXT_UNKNOWN |
2115 RTE_PTYPE_INNER_L4_SCTP;
2116 /* The next ptype's inner L4 is IGMP */
2117 ptype[36] = RTE_PTYPE_L2_ETHER | RTE_PTYPE_L3_IPV4_EXT_UNKNOWN |
2118 RTE_PTYPE_TUNNEL_GRENAT | RTE_PTYPE_INNER_L2_ETHER |
2119 RTE_PTYPE_INNER_L3_IPV4_EXT_UNKNOWN;
2120 ptype[37] = RTE_PTYPE_L2_ETHER | RTE_PTYPE_L3_IPV4_EXT_UNKNOWN |
2121 RTE_PTYPE_TUNNEL_GRENAT | RTE_PTYPE_INNER_L2_ETHER |
2122 RTE_PTYPE_INNER_L3_IPV4_EXT_UNKNOWN |
2123 RTE_PTYPE_INNER_L4_ICMP;
2125 /* IPv4 --> GRE/Teredo/VXLAN --> MAC --> IPv6 */
2126 ptype[39] = RTE_PTYPE_L2_ETHER | RTE_PTYPE_L3_IPV4_EXT_UNKNOWN |
2127 RTE_PTYPE_TUNNEL_GRENAT | RTE_PTYPE_INNER_L2_ETHER |
2128 RTE_PTYPE_INNER_L3_IPV6_EXT_UNKNOWN |
2129 RTE_PTYPE_INNER_L4_FRAG;
2130 ptype[40] = RTE_PTYPE_L2_ETHER | RTE_PTYPE_L3_IPV4_EXT_UNKNOWN |
2131 RTE_PTYPE_TUNNEL_GRENAT | RTE_PTYPE_INNER_L2_ETHER |
2132 RTE_PTYPE_INNER_L3_IPV6_EXT_UNKNOWN |
2133 RTE_PTYPE_INNER_L4_NONFRAG;
2134 ptype[41] = RTE_PTYPE_L2_ETHER | RTE_PTYPE_L3_IPV4_EXT_UNKNOWN |
2135 RTE_PTYPE_TUNNEL_GRENAT | RTE_PTYPE_INNER_L2_ETHER |
2136 RTE_PTYPE_INNER_L3_IPV6_EXT_UNKNOWN |
2137 RTE_PTYPE_INNER_L4_UDP;
2138 ptype[42] = RTE_PTYPE_L2_ETHER | RTE_PTYPE_L3_IPV4_EXT_UNKNOWN |
2139 RTE_PTYPE_TUNNEL_GRENAT | RTE_PTYPE_INNER_L2_ETHER |
2140 RTE_PTYPE_INNER_L3_IPV6_EXT_UNKNOWN |
2141 RTE_PTYPE_INNER_L4_TCP;
2142 ptype[43] = RTE_PTYPE_L2_ETHER | RTE_PTYPE_L3_IPV4_EXT_UNKNOWN |
2143 RTE_PTYPE_TUNNEL_GRENAT | RTE_PTYPE_INNER_L2_ETHER |
2144 RTE_PTYPE_INNER_L3_IPV6_EXT_UNKNOWN |
2145 RTE_PTYPE_INNER_L4_SCTP;
2146 /* The next ptype's inner L4 is IGMP */
2147 ptype[44] = RTE_PTYPE_L2_ETHER | RTE_PTYPE_L3_IPV4_EXT_UNKNOWN |
2148 RTE_PTYPE_TUNNEL_GRENAT | RTE_PTYPE_INNER_L2_ETHER |
2149 RTE_PTYPE_INNER_L3_IPV6_EXT_UNKNOWN;
2150 ptype[45] = RTE_PTYPE_L2_ETHER | RTE_PTYPE_L3_IPV4_EXT_UNKNOWN |
2151 RTE_PTYPE_TUNNEL_GRENAT | RTE_PTYPE_INNER_L2_ETHER |
2152 RTE_PTYPE_INNER_L3_IPV6_EXT_UNKNOWN |
2153 RTE_PTYPE_INNER_L4_ICMP;
2155 /* Non-tunnel IPv6 */
2156 ptype[111] = RTE_PTYPE_L2_ETHER | RTE_PTYPE_L3_IPV6_EXT_UNKNOWN |
2158 ptype[112] = RTE_PTYPE_L2_ETHER | RTE_PTYPE_L3_IPV6_EXT_UNKNOWN |
2159 RTE_PTYPE_L4_NONFRAG;
2160 ptype[113] = RTE_PTYPE_L2_ETHER | RTE_PTYPE_L3_IPV6_EXT_UNKNOWN |
2162 ptype[114] = RTE_PTYPE_L2_ETHER | RTE_PTYPE_L3_IPV6_EXT_UNKNOWN |
2164 /* The next ptype is GRE over IPv6 */
2165 ptype[115] = RTE_PTYPE_L2_ETHER | RTE_PTYPE_L3_IPV6_EXT_UNKNOWN;
2166 ptype[116] = RTE_PTYPE_L2_ETHER | RTE_PTYPE_L3_IPV6_EXT_UNKNOWN |
2168 ptype[117] = RTE_PTYPE_L2_ETHER | RTE_PTYPE_L3_IPV6_EXT_UNKNOWN |
2170 ptype[118] = RTE_PTYPE_L2_ETHER | RTE_PTYPE_L3_IPV6_EXT_UNKNOWN |
2172 /* Special for PTP over IPv6 + UDP */
2173 ptype[119] = RTE_PTYPE_L2_ETHER | RTE_PTYPE_L3_IPV6_EXT_UNKNOWN |
2176 /* IPv6 --> GRE/Teredo/VXLAN */
2177 ptype[123] = RTE_PTYPE_L2_ETHER | RTE_PTYPE_L3_IPV6_EXT_UNKNOWN |
2178 RTE_PTYPE_TUNNEL_GRENAT;
2179 /* IPv6 --> GRE/Teredo/VXLAN --> MAC */
2180 ptype[124] = RTE_PTYPE_L2_ETHER | RTE_PTYPE_L3_IPV6_EXT_UNKNOWN |
2181 RTE_PTYPE_TUNNEL_GRENAT | RTE_PTYPE_INNER_L2_ETHER;
2183 /* IPv6 --> GRE/Teredo/VXLAN --> MAC --> IPv4 */
2184 ptype[125] = RTE_PTYPE_L2_ETHER | RTE_PTYPE_L3_IPV6_EXT_UNKNOWN |
2185 RTE_PTYPE_TUNNEL_GRENAT | RTE_PTYPE_INNER_L2_ETHER |
2186 RTE_PTYPE_INNER_L3_IPV4_EXT_UNKNOWN |
2187 RTE_PTYPE_INNER_L4_FRAG;
2188 ptype[126] = RTE_PTYPE_L2_ETHER | RTE_PTYPE_L3_IPV6_EXT_UNKNOWN |
2189 RTE_PTYPE_TUNNEL_GRENAT | RTE_PTYPE_INNER_L2_ETHER |
2190 RTE_PTYPE_INNER_L3_IPV4_EXT_UNKNOWN |
2191 RTE_PTYPE_INNER_L4_NONFRAG;
2192 ptype[127] = RTE_PTYPE_L2_ETHER | RTE_PTYPE_L3_IPV6_EXT_UNKNOWN |
2193 RTE_PTYPE_TUNNEL_GRENAT | RTE_PTYPE_INNER_L2_ETHER |
2194 RTE_PTYPE_INNER_L3_IPV4_EXT_UNKNOWN |
2195 RTE_PTYPE_INNER_L4_UDP;
2196 ptype[128] = RTE_PTYPE_L2_ETHER | RTE_PTYPE_L3_IPV6_EXT_UNKNOWN |
2197 RTE_PTYPE_TUNNEL_GRENAT | RTE_PTYPE_INNER_L2_ETHER |
2198 RTE_PTYPE_INNER_L3_IPV4_EXT_UNKNOWN |
2199 RTE_PTYPE_INNER_L4_TCP;
2200 ptype[129] = RTE_PTYPE_L2_ETHER | RTE_PTYPE_L3_IPV6_EXT_UNKNOWN |
2201 RTE_PTYPE_TUNNEL_GRENAT | RTE_PTYPE_INNER_L2_ETHER |
2202 RTE_PTYPE_INNER_L3_IPV4_EXT_UNKNOWN |
2203 RTE_PTYPE_INNER_L4_SCTP;
2204 /* The next ptype's inner L4 is IGMP */
2205 ptype[130] = RTE_PTYPE_L2_ETHER | RTE_PTYPE_L3_IPV6_EXT_UNKNOWN |
2206 RTE_PTYPE_TUNNEL_GRENAT | RTE_PTYPE_INNER_L2_ETHER |
2207 RTE_PTYPE_INNER_L3_IPV4_EXT_UNKNOWN;
2208 ptype[131] = RTE_PTYPE_L2_ETHER | RTE_PTYPE_L3_IPV6_EXT_UNKNOWN |
2209 RTE_PTYPE_TUNNEL_GRENAT | RTE_PTYPE_INNER_L2_ETHER |
2210 RTE_PTYPE_INNER_L3_IPV4_EXT_UNKNOWN |
2211 RTE_PTYPE_INNER_L4_ICMP;
2213 /* IPv6 --> GRE/Teredo/VXLAN --> MAC --> IPv6 */
2214 ptype[133] = RTE_PTYPE_L2_ETHER | RTE_PTYPE_L3_IPV6_EXT_UNKNOWN |
2215 RTE_PTYPE_TUNNEL_GRENAT | RTE_PTYPE_INNER_L2_ETHER |
2216 RTE_PTYPE_INNER_L3_IPV6_EXT_UNKNOWN |
2217 RTE_PTYPE_INNER_L4_FRAG;
2218 ptype[134] = RTE_PTYPE_L2_ETHER | RTE_PTYPE_L3_IPV6_EXT_UNKNOWN |
2219 RTE_PTYPE_TUNNEL_GRENAT | RTE_PTYPE_INNER_L2_ETHER |
2220 RTE_PTYPE_INNER_L3_IPV6_EXT_UNKNOWN |
2221 RTE_PTYPE_INNER_L4_NONFRAG;
2222 ptype[135] = RTE_PTYPE_L2_ETHER | RTE_PTYPE_L3_IPV6_EXT_UNKNOWN |
2223 RTE_PTYPE_TUNNEL_GRENAT | RTE_PTYPE_INNER_L2_ETHER |
2224 RTE_PTYPE_INNER_L3_IPV6_EXT_UNKNOWN |
2225 RTE_PTYPE_INNER_L4_UDP;
2226 ptype[136] = RTE_PTYPE_L2_ETHER | RTE_PTYPE_L3_IPV6_EXT_UNKNOWN |
2227 RTE_PTYPE_TUNNEL_GRENAT | RTE_PTYPE_INNER_L2_ETHER |
2228 RTE_PTYPE_INNER_L3_IPV6_EXT_UNKNOWN |
2229 RTE_PTYPE_INNER_L4_TCP;
2230 ptype[137] = RTE_PTYPE_L2_ETHER | RTE_PTYPE_L3_IPV6_EXT_UNKNOWN |
2231 RTE_PTYPE_TUNNEL_GRENAT | RTE_PTYPE_INNER_L2_ETHER |
2232 RTE_PTYPE_INNER_L3_IPV6_EXT_UNKNOWN |
2233 RTE_PTYPE_INNER_L4_SCTP;
2234 /* The next ptype's inner L4 is IGMP */
2235 ptype[138] = RTE_PTYPE_L2_ETHER | RTE_PTYPE_L3_IPV6_EXT_UNKNOWN |
2236 RTE_PTYPE_TUNNEL_GRENAT | RTE_PTYPE_INNER_L2_ETHER |
2237 RTE_PTYPE_INNER_L3_IPV6_EXT_UNKNOWN;
2238 ptype[139] = RTE_PTYPE_L2_ETHER | RTE_PTYPE_L3_IPV6_EXT_UNKNOWN |
2239 RTE_PTYPE_TUNNEL_GRENAT | RTE_PTYPE_INNER_L2_ETHER |
2240 RTE_PTYPE_INNER_L3_IPV6_EXT_UNKNOWN |
2241 RTE_PTYPE_INNER_L4_ICMP;
2245 hns3_init_rx_ptype_tble(struct rte_eth_dev *dev)
2247 struct hns3_adapter *hns = dev->data->dev_private;
2248 struct hns3_ptype_table *tbl = &hns->ptype_tbl;
2250 memset(tbl, 0, sizeof(*tbl));
2252 hns3_init_non_tunnel_ptype_tbl(tbl);
2253 hns3_init_tunnel_ptype_tbl(tbl);
2254 hns3_init_adv_layout_ptype(tbl);
2258 hns3_rxd_to_vlan_tci(struct hns3_rx_queue *rxq, struct rte_mbuf *mb,
2259 uint32_t l234_info, const struct hns3_desc *rxd)
2261 #define HNS3_STRP_STATUS_NUM 0x4
2263 #define HNS3_NO_STRP_VLAN_VLD 0x0
2264 #define HNS3_INNER_STRP_VLAN_VLD 0x1
2265 #define HNS3_OUTER_STRP_VLAN_VLD 0x2
2266 uint32_t strip_status;
2267 uint32_t report_mode;
2270 * Since HW limitation, the vlan tag will always be inserted into RX
2271 * descriptor when strip the tag from packet, driver needs to determine
2272 * reporting which tag to mbuf according to the PVID configuration
2273 * and vlan striped status.
2275 static const uint32_t report_type[][HNS3_STRP_STATUS_NUM] = {
2277 HNS3_NO_STRP_VLAN_VLD,
2278 HNS3_OUTER_STRP_VLAN_VLD,
2279 HNS3_INNER_STRP_VLAN_VLD,
2280 HNS3_OUTER_STRP_VLAN_VLD
2283 HNS3_NO_STRP_VLAN_VLD,
2284 HNS3_NO_STRP_VLAN_VLD,
2285 HNS3_NO_STRP_VLAN_VLD,
2286 HNS3_INNER_STRP_VLAN_VLD
2289 strip_status = hns3_get_field(l234_info, HNS3_RXD_STRP_TAGP_M,
2290 HNS3_RXD_STRP_TAGP_S);
2291 report_mode = report_type[rxq->pvid_sw_discard_en][strip_status];
2292 switch (report_mode) {
2293 case HNS3_NO_STRP_VLAN_VLD:
2296 case HNS3_INNER_STRP_VLAN_VLD:
2297 mb->ol_flags |= PKT_RX_VLAN | PKT_RX_VLAN_STRIPPED;
2298 mb->vlan_tci = rte_le_to_cpu_16(rxd->rx.vlan_tag);
2300 case HNS3_OUTER_STRP_VLAN_VLD:
2301 mb->ol_flags |= PKT_RX_VLAN | PKT_RX_VLAN_STRIPPED;
2302 mb->vlan_tci = rte_le_to_cpu_16(rxd->rx.ot_vlan_tag);
2311 recalculate_data_len(struct rte_mbuf *first_seg, struct rte_mbuf *last_seg,
2312 struct rte_mbuf *rxm, struct hns3_rx_queue *rxq,
2315 uint8_t crc_len = rxq->crc_len;
2317 if (data_len <= crc_len) {
2318 rte_pktmbuf_free_seg(rxm);
2319 first_seg->nb_segs--;
2320 last_seg->data_len = (uint16_t)(last_seg->data_len -
2321 (crc_len - data_len));
2322 last_seg->next = NULL;
2324 rxm->data_len = (uint16_t)(data_len - crc_len);
2327 static inline struct rte_mbuf *
2328 hns3_rx_alloc_buffer(struct hns3_rx_queue *rxq)
2332 if (likely(rxq->bulk_mbuf_num > 0))
2333 return rxq->bulk_mbuf[--rxq->bulk_mbuf_num];
2335 ret = rte_mempool_get_bulk(rxq->mb_pool, (void **)rxq->bulk_mbuf,
2336 HNS3_BULK_ALLOC_MBUF_NUM);
2337 if (likely(ret == 0)) {
2338 rxq->bulk_mbuf_num = HNS3_BULK_ALLOC_MBUF_NUM;
2339 return rxq->bulk_mbuf[--rxq->bulk_mbuf_num];
2341 return rte_mbuf_raw_alloc(rxq->mb_pool);
2345 hns3_rx_ptp_timestamp_handle(struct hns3_rx_queue *rxq, struct rte_mbuf *mbuf,
2346 volatile struct hns3_desc *rxd)
2348 struct hns3_pf *pf = HNS3_DEV_PRIVATE_TO_PF(rxq->hns);
2349 uint64_t timestamp = rte_le_to_cpu_64(rxd->timestamp);
2351 mbuf->ol_flags |= PKT_RX_IEEE1588_PTP | PKT_RX_IEEE1588_TMST;
2352 if (hns3_timestamp_rx_dynflag > 0) {
2353 *RTE_MBUF_DYNFIELD(mbuf, hns3_timestamp_dynfield_offset,
2354 rte_mbuf_timestamp_t *) = timestamp;
2355 mbuf->ol_flags |= hns3_timestamp_rx_dynflag;
2358 pf->rx_timestamp = timestamp;
2362 hns3_recv_pkts(void *rx_queue, struct rte_mbuf **rx_pkts, uint16_t nb_pkts)
2364 volatile struct hns3_desc *rx_ring; /* RX ring (desc) */
2365 volatile struct hns3_desc *rxdp; /* pointer of the current desc */
2366 struct hns3_rx_queue *rxq; /* RX queue */
2367 struct hns3_entry *sw_ring;
2368 struct hns3_entry *rxe;
2369 struct hns3_desc rxd;
2370 struct rte_mbuf *nmb; /* pointer of the new mbuf */
2371 struct rte_mbuf *rxm;
2372 uint32_t bd_base_info;
2385 rx_ring = rxq->rx_ring;
2386 sw_ring = rxq->sw_ring;
2387 rx_id = rxq->next_to_use;
2389 while (nb_rx < nb_pkts) {
2390 rxdp = &rx_ring[rx_id];
2391 bd_base_info = rte_le_to_cpu_32(rxdp->rx.bd_base_info);
2392 if (unlikely(!(bd_base_info & BIT(HNS3_RXD_VLD_B))))
2395 rxd = rxdp[(bd_base_info & (1u << HNS3_RXD_VLD_B)) -
2396 (1u << HNS3_RXD_VLD_B)];
2398 nmb = hns3_rx_alloc_buffer(rxq);
2399 if (unlikely(nmb == NULL)) {
2402 port_id = rxq->port_id;
2403 rte_eth_devices[port_id].data->rx_mbuf_alloc_failed++;
2408 rxe = &sw_ring[rx_id];
2410 if (unlikely(rx_id == rxq->nb_rx_desc))
2413 rte_prefetch0(sw_ring[rx_id].mbuf);
2414 if ((rx_id & HNS3_RX_RING_PREFETCTH_MASK) == 0) {
2415 rte_prefetch0(&rx_ring[rx_id]);
2416 rte_prefetch0(&sw_ring[rx_id]);
2423 if (unlikely(bd_base_info & BIT(HNS3_RXD_TS_VLD_B)))
2424 hns3_rx_ptp_timestamp_handle(rxq, rxm, rxdp);
2426 dma_addr = rte_mbuf_data_iova_default(nmb);
2427 rxdp->addr = rte_cpu_to_le_64(dma_addr);
2428 rxdp->rx.bd_base_info = 0;
2430 rxm->data_off = RTE_PKTMBUF_HEADROOM;
2431 rxm->pkt_len = (uint16_t)(rte_le_to_cpu_16(rxd.rx.pkt_len)) -
2433 rxm->data_len = rxm->pkt_len;
2434 rxm->port = rxq->port_id;
2435 rxm->hash.rss = rte_le_to_cpu_32(rxd.rx.rss_hash);
2436 rxm->ol_flags |= PKT_RX_RSS_HASH;
2437 if (unlikely(bd_base_info & BIT(HNS3_RXD_LUM_B))) {
2439 rte_le_to_cpu_16(rxd.rx.fd_id);
2440 rxm->ol_flags |= PKT_RX_FDIR | PKT_RX_FDIR_ID;
2445 /* Load remained descriptor data and extract necessary fields */
2446 l234_info = rte_le_to_cpu_32(rxd.rx.l234_info);
2447 ol_info = rte_le_to_cpu_32(rxd.rx.ol_info);
2448 ret = hns3_handle_bdinfo(rxq, rxm, bd_base_info,
2449 l234_info, &cksum_err);
2453 rxm->packet_type = hns3_rx_calc_ptype(rxq, l234_info, ol_info);
2455 if (rxm->packet_type == RTE_PTYPE_L2_ETHER_TIMESYNC)
2456 rxm->ol_flags |= PKT_RX_IEEE1588_PTP;
2458 if (likely(bd_base_info & BIT(HNS3_RXD_L3L4P_B)))
2459 hns3_rx_set_cksum_flag(rxm, rxm->packet_type,
2461 hns3_rxd_to_vlan_tci(rxq, rxm, l234_info, &rxd);
2463 /* Increment bytes counter */
2464 rxq->basic_stats.bytes += rxm->pkt_len;
2466 rx_pkts[nb_rx++] = rxm;
2469 rte_pktmbuf_free(rxm);
2472 rxq->next_to_use = rx_id;
2473 rxq->rx_free_hold += nb_rx_bd;
2474 if (rxq->rx_free_hold > rxq->rx_free_thresh) {
2475 hns3_write_reg_opt(rxq->io_head_reg, rxq->rx_free_hold);
2476 rxq->rx_free_hold = 0;
2483 hns3_recv_scattered_pkts(void *rx_queue,
2484 struct rte_mbuf **rx_pkts,
2487 volatile struct hns3_desc *rx_ring; /* RX ring (desc) */
2488 volatile struct hns3_desc *rxdp; /* pointer of the current desc */
2489 struct hns3_rx_queue *rxq; /* RX queue */
2490 struct hns3_entry *sw_ring;
2491 struct hns3_entry *rxe;
2492 struct rte_mbuf *first_seg;
2493 struct rte_mbuf *last_seg;
2494 struct hns3_desc rxd;
2495 struct rte_mbuf *nmb; /* pointer of the new mbuf */
2496 struct rte_mbuf *rxm;
2497 struct rte_eth_dev *dev;
2498 uint32_t bd_base_info;
2513 rx_id = rxq->next_to_use;
2514 rx_ring = rxq->rx_ring;
2515 sw_ring = rxq->sw_ring;
2516 first_seg = rxq->pkt_first_seg;
2517 last_seg = rxq->pkt_last_seg;
2519 while (nb_rx < nb_pkts) {
2520 rxdp = &rx_ring[rx_id];
2521 bd_base_info = rte_le_to_cpu_32(rxdp->rx.bd_base_info);
2522 if (unlikely(!(bd_base_info & BIT(HNS3_RXD_VLD_B))))
2526 * The interactive process between software and hardware of
2527 * receiving a new packet in hns3 network engine:
2528 * 1. Hardware network engine firstly writes the packet content
2529 * to the memory pointed by the 'addr' field of the Rx Buffer
2530 * Descriptor, secondly fills the result of parsing the
2531 * packet include the valid field into the Rx Buffer
2532 * Descriptor in one write operation.
2533 * 2. Driver reads the Rx BD's valid field in the loop to check
2534 * whether it's valid, if valid then assign a new address to
2535 * the addr field, clear the valid field, get the other
2536 * information of the packet by parsing Rx BD's other fields,
2537 * finally write back the number of Rx BDs processed by the
2538 * driver to the HNS3_RING_RX_HEAD_REG register to inform
2540 * In the above process, the ordering is very important. We must
2541 * make sure that CPU read Rx BD's other fields only after the
2544 * There are two type of re-ordering: compiler re-ordering and
2545 * CPU re-ordering under the ARMv8 architecture.
2546 * 1. we use volatile to deal with compiler re-ordering, so you
2547 * can see that rx_ring/rxdp defined with volatile.
2548 * 2. we commonly use memory barrier to deal with CPU
2549 * re-ordering, but the cost is high.
2551 * In order to solve the high cost of using memory barrier, we
2552 * use the data dependency order under the ARMv8 architecture,
2555 * instr02: load B <- A
2556 * the instr02 will always execute after instr01.
2558 * To construct the data dependency ordering, we use the
2559 * following assignment:
2560 * rxd = rxdp[(bd_base_info & (1u << HNS3_RXD_VLD_B)) -
2561 * (1u<<HNS3_RXD_VLD_B)]
2562 * Using gcc compiler under the ARMv8 architecture, the related
2563 * assembly code example as follows:
2564 * note: (1u << HNS3_RXD_VLD_B) equal 0x10
2565 * instr01: ldr w26, [x22, #28] --read bd_base_info
2566 * instr02: and w0, w26, #0x10 --calc bd_base_info & 0x10
2567 * instr03: sub w0, w0, #0x10 --calc (bd_base_info &
2569 * instr04: add x0, x22, x0, lsl #5 --calc copy source addr
2570 * instr05: ldp x2, x3, [x0]
2571 * instr06: stp x2, x3, [x29, #256] --copy BD's [0 ~ 15]B
2572 * instr07: ldp x4, x5, [x0, #16]
2573 * instr08: stp x4, x5, [x29, #272] --copy BD's [16 ~ 31]B
2574 * the instr05~08 depend on x0's value, x0 depent on w26's
2575 * value, the w26 is the bd_base_info, this form the data
2576 * dependency ordering.
2577 * note: if BD is valid, (bd_base_info & (1u<<HNS3_RXD_VLD_B)) -
2578 * (1u<<HNS3_RXD_VLD_B) will always zero, so the
2579 * assignment is correct.
2581 * So we use the data dependency ordering instead of memory
2582 * barrier to improve receive performance.
2584 rxd = rxdp[(bd_base_info & (1u << HNS3_RXD_VLD_B)) -
2585 (1u << HNS3_RXD_VLD_B)];
2587 nmb = hns3_rx_alloc_buffer(rxq);
2588 if (unlikely(nmb == NULL)) {
2589 dev = &rte_eth_devices[rxq->port_id];
2590 dev->data->rx_mbuf_alloc_failed++;
2595 rxe = &sw_ring[rx_id];
2597 if (unlikely(rx_id == rxq->nb_rx_desc))
2600 rte_prefetch0(sw_ring[rx_id].mbuf);
2601 if ((rx_id & HNS3_RX_RING_PREFETCTH_MASK) == 0) {
2602 rte_prefetch0(&rx_ring[rx_id]);
2603 rte_prefetch0(&sw_ring[rx_id]);
2609 dma_addr = rte_cpu_to_le_64(rte_mbuf_data_iova_default(nmb));
2610 rxdp->rx.bd_base_info = 0;
2611 rxdp->addr = dma_addr;
2613 if (first_seg == NULL) {
2615 first_seg->nb_segs = 1;
2617 first_seg->nb_segs++;
2618 last_seg->next = rxm;
2621 rxm->data_off = RTE_PKTMBUF_HEADROOM;
2622 rxm->data_len = rte_le_to_cpu_16(rxd.rx.size);
2624 if (!(bd_base_info & BIT(HNS3_RXD_FE_B))) {
2631 * The last buffer of the received packet. packet len from
2632 * buffer description may contains CRC len, packet len should
2633 * subtract it, same as data len.
2635 first_seg->pkt_len = rte_le_to_cpu_16(rxd.rx.pkt_len);
2638 * This is the last buffer of the received packet. If the CRC
2639 * is not stripped by the hardware:
2640 * - Subtract the CRC length from the total packet length.
2641 * - If the last buffer only contains the whole CRC or a part
2642 * of it, free the mbuf associated to the last buffer. If part
2643 * of the CRC is also contained in the previous mbuf, subtract
2644 * the length of that CRC part from the data length of the
2648 if (unlikely(rxq->crc_len > 0)) {
2649 first_seg->pkt_len -= rxq->crc_len;
2650 recalculate_data_len(first_seg, last_seg, rxm, rxq,
2654 first_seg->port = rxq->port_id;
2655 first_seg->hash.rss = rte_le_to_cpu_32(rxd.rx.rss_hash);
2656 first_seg->ol_flags = PKT_RX_RSS_HASH;
2657 if (unlikely(bd_base_info & BIT(HNS3_RXD_LUM_B))) {
2658 first_seg->hash.fdir.hi =
2659 rte_le_to_cpu_16(rxd.rx.fd_id);
2660 first_seg->ol_flags |= PKT_RX_FDIR | PKT_RX_FDIR_ID;
2663 gro_size = hns3_get_field(bd_base_info, HNS3_RXD_GRO_SIZE_M,
2664 HNS3_RXD_GRO_SIZE_S);
2665 if (gro_size != 0) {
2666 first_seg->ol_flags |= PKT_RX_LRO;
2667 first_seg->tso_segsz = gro_size;
2670 l234_info = rte_le_to_cpu_32(rxd.rx.l234_info);
2671 ol_info = rte_le_to_cpu_32(rxd.rx.ol_info);
2672 ret = hns3_handle_bdinfo(rxq, first_seg, bd_base_info,
2673 l234_info, &cksum_err);
2677 first_seg->packet_type = hns3_rx_calc_ptype(rxq,
2678 l234_info, ol_info);
2680 if (bd_base_info & BIT(HNS3_RXD_L3L4P_B))
2681 hns3_rx_set_cksum_flag(first_seg,
2682 first_seg->packet_type,
2684 hns3_rxd_to_vlan_tci(rxq, first_seg, l234_info, &rxd);
2686 /* Increment bytes counter */
2687 rxq->basic_stats.bytes += first_seg->pkt_len;
2689 rx_pkts[nb_rx++] = first_seg;
2693 rte_pktmbuf_free(first_seg);
2697 rxq->next_to_use = rx_id;
2698 rxq->pkt_first_seg = first_seg;
2699 rxq->pkt_last_seg = last_seg;
2701 rxq->rx_free_hold += nb_rx_bd;
2702 if (rxq->rx_free_hold > rxq->rx_free_thresh) {
2703 hns3_write_reg_opt(rxq->io_head_reg, rxq->rx_free_hold);
2704 rxq->rx_free_hold = 0;
2711 hns3_rxq_vec_setup(__rte_unused struct hns3_rx_queue *rxq)
2716 hns3_rx_check_vec_support(__rte_unused struct rte_eth_dev *dev)
2722 hns3_recv_pkts_vec(__rte_unused void *tx_queue,
2723 __rte_unused struct rte_mbuf **rx_pkts,
2724 __rte_unused uint16_t nb_pkts)
2730 hns3_recv_pkts_vec_sve(__rte_unused void *tx_queue,
2731 __rte_unused struct rte_mbuf **rx_pkts,
2732 __rte_unused uint16_t nb_pkts)
2738 hns3_rx_burst_mode_get(struct rte_eth_dev *dev, __rte_unused uint16_t queue_id,
2739 struct rte_eth_burst_mode *mode)
2741 static const struct {
2742 eth_rx_burst_t pkt_burst;
2745 { hns3_recv_pkts, "Scalar" },
2746 { hns3_recv_scattered_pkts, "Scalar Scattered" },
2747 { hns3_recv_pkts_vec, "Vector Neon" },
2748 { hns3_recv_pkts_vec_sve, "Vector Sve" },
2751 eth_rx_burst_t pkt_burst = dev->rx_pkt_burst;
2755 for (i = 0; i < RTE_DIM(burst_infos); i++) {
2756 if (pkt_burst == burst_infos[i].pkt_burst) {
2757 snprintf(mode->info, sizeof(mode->info), "%s",
2758 burst_infos[i].info);
2768 hns3_check_sve_support(void)
2770 #if defined(RTE_ARCH_ARM64) && defined(__ARM_FEATURE_SVE)
2771 if (rte_cpu_get_flag_enabled(RTE_CPUFLAG_SVE))
2777 static eth_rx_burst_t
2778 hns3_get_rx_function(struct rte_eth_dev *dev)
2780 struct hns3_adapter *hns = dev->data->dev_private;
2781 uint64_t offloads = dev->data->dev_conf.rxmode.offloads;
2782 bool vec_allowed, sve_allowed, simple_allowed;
2784 vec_allowed = hns3_rx_check_vec_support(dev) == 0;
2785 sve_allowed = vec_allowed && hns3_check_sve_support();
2786 simple_allowed = !dev->data->scattered_rx &&
2787 (offloads & DEV_RX_OFFLOAD_TCP_LRO) == 0;
2789 if (hns->rx_func_hint == HNS3_IO_FUNC_HINT_VEC && vec_allowed)
2790 return hns3_recv_pkts_vec;
2791 if (hns->rx_func_hint == HNS3_IO_FUNC_HINT_SVE && sve_allowed)
2792 return hns3_recv_pkts_vec_sve;
2793 if (hns->rx_func_hint == HNS3_IO_FUNC_HINT_SIMPLE && simple_allowed)
2794 return hns3_recv_pkts;
2795 if (hns->rx_func_hint == HNS3_IO_FUNC_HINT_COMMON)
2796 return hns3_recv_scattered_pkts;
2799 return hns3_recv_pkts_vec;
2801 return hns3_recv_pkts;
2803 return hns3_recv_scattered_pkts;
2807 hns3_tx_queue_conf_check(struct hns3_hw *hw, const struct rte_eth_txconf *conf,
2808 uint16_t nb_desc, uint16_t *tx_rs_thresh,
2809 uint16_t *tx_free_thresh, uint16_t idx)
2811 #define HNS3_TX_RS_FREE_THRESH_GAP 8
2812 uint16_t rs_thresh, free_thresh, fast_free_thresh;
2814 if (nb_desc > HNS3_MAX_RING_DESC || nb_desc < HNS3_MIN_RING_DESC ||
2815 nb_desc % HNS3_ALIGN_RING_DESC) {
2816 hns3_err(hw, "number (%u) of tx descriptors is invalid",
2821 rs_thresh = (conf->tx_rs_thresh > 0) ?
2822 conf->tx_rs_thresh : HNS3_DEFAULT_TX_RS_THRESH;
2823 free_thresh = (conf->tx_free_thresh > 0) ?
2824 conf->tx_free_thresh : HNS3_DEFAULT_TX_FREE_THRESH;
2825 if (rs_thresh + free_thresh > nb_desc || nb_desc % rs_thresh ||
2826 rs_thresh >= nb_desc - HNS3_TX_RS_FREE_THRESH_GAP ||
2827 free_thresh >= nb_desc - HNS3_TX_RS_FREE_THRESH_GAP) {
2828 hns3_err(hw, "tx_rs_thresh (%u) tx_free_thresh (%u) nb_desc "
2829 "(%u) of tx descriptors for port=%u queue=%u check "
2831 rs_thresh, free_thresh, nb_desc, hw->data->port_id,
2836 if (conf->tx_free_thresh == 0) {
2837 /* Fast free Tx memory buffer to improve cache hit rate */
2838 fast_free_thresh = nb_desc - rs_thresh;
2839 if (fast_free_thresh >=
2840 HNS3_TX_FAST_FREE_AHEAD + HNS3_DEFAULT_TX_FREE_THRESH)
2841 free_thresh = fast_free_thresh -
2842 HNS3_TX_FAST_FREE_AHEAD;
2845 *tx_rs_thresh = rs_thresh;
2846 *tx_free_thresh = free_thresh;
2851 hns3_tx_queue_setup(struct rte_eth_dev *dev, uint16_t idx, uint16_t nb_desc,
2852 unsigned int socket_id, const struct rte_eth_txconf *conf)
2854 struct hns3_adapter *hns = dev->data->dev_private;
2855 uint16_t tx_rs_thresh, tx_free_thresh;
2856 struct hns3_hw *hw = &hns->hw;
2857 struct hns3_queue_info q_info;
2858 struct hns3_tx_queue *txq;
2862 ret = hns3_tx_queue_conf_check(hw, conf, nb_desc,
2863 &tx_rs_thresh, &tx_free_thresh, idx);
2867 if (dev->data->tx_queues[idx] != NULL) {
2868 hns3_tx_queue_release(dev->data->tx_queues[idx]);
2869 dev->data->tx_queues[idx] = NULL;
2873 q_info.socket_id = socket_id;
2874 q_info.nb_desc = nb_desc;
2875 q_info.type = "hns3 TX queue";
2876 q_info.ring_name = "tx_ring";
2877 txq = hns3_alloc_txq_and_dma_zone(dev, &q_info);
2880 "Failed to alloc mem and reserve DMA mem for tx ring!");
2884 txq->tx_deferred_start = conf->tx_deferred_start;
2885 if (txq->tx_deferred_start && !hns3_dev_indep_txrx_supported(hw)) {
2886 hns3_warn(hw, "deferred start is not supported.");
2887 txq->tx_deferred_start = false;
2890 tx_entry_len = sizeof(struct hns3_entry) * txq->nb_tx_desc;
2891 txq->sw_ring = rte_zmalloc_socket("hns3 TX sw ring", tx_entry_len,
2892 RTE_CACHE_LINE_SIZE, socket_id);
2893 if (txq->sw_ring == NULL) {
2894 hns3_err(hw, "Failed to allocate memory for tx sw ring!");
2895 hns3_tx_queue_release(txq);
2900 txq->next_to_use = 0;
2901 txq->next_to_clean = 0;
2902 txq->tx_bd_ready = txq->nb_tx_desc - 1;
2903 txq->tx_free_thresh = tx_free_thresh;
2904 txq->tx_rs_thresh = tx_rs_thresh;
2905 txq->free = rte_zmalloc_socket("hns3 TX mbuf free array",
2906 sizeof(struct rte_mbuf *) * txq->tx_rs_thresh,
2907 RTE_CACHE_LINE_SIZE, socket_id);
2909 hns3_err(hw, "failed to allocate tx mbuf free array!");
2910 hns3_tx_queue_release(txq);
2914 txq->port_id = dev->data->port_id;
2916 * For hns3 PF device, if the VLAN mode is HW_SHIFT_AND_DISCARD_MODE,
2917 * the pvid_sw_shift_en in the queue struct should not be changed,
2918 * because PVID-related operations do not need to be processed by PMD
2919 * driver. For hns3 VF device, whether it needs to process PVID depends
2920 * on the configuration of PF kernel mode netdev driver. And the
2921 * related PF configuration is delivered through the mailbox and finally
2922 * reflectd in port_base_vlan_cfg.
2924 if (hns->is_vf || hw->vlan_mode == HNS3_SW_SHIFT_AND_DISCARD_MODE)
2925 txq->pvid_sw_shift_en = hw->port_base_vlan_cfg.state ==
2926 HNS3_PORT_BASE_VLAN_ENABLE;
2928 txq->pvid_sw_shift_en = false;
2929 txq->max_non_tso_bd_num = hw->max_non_tso_bd_num;
2930 txq->configured = true;
2931 txq->io_base = (void *)((char *)hw->io_base +
2932 hns3_get_tqp_reg_offset(idx));
2933 txq->io_tail_reg = (volatile void *)((char *)txq->io_base +
2934 HNS3_RING_TX_TAIL_REG);
2935 txq->min_tx_pkt_len = hw->min_tx_pkt_len;
2936 txq->tso_mode = hw->tso_mode;
2937 txq->udp_cksum_mode = hw->udp_cksum_mode;
2938 memset(&txq->basic_stats, 0, sizeof(struct hns3_tx_basic_stats));
2939 memset(&txq->dfx_stats, 0, sizeof(struct hns3_tx_dfx_stats));
2941 rte_spinlock_lock(&hw->lock);
2942 dev->data->tx_queues[idx] = txq;
2943 rte_spinlock_unlock(&hw->lock);
2949 hns3_tx_free_useless_buffer(struct hns3_tx_queue *txq)
2951 uint16_t tx_next_clean = txq->next_to_clean;
2952 uint16_t tx_next_use = txq->next_to_use;
2953 uint16_t tx_bd_ready = txq->tx_bd_ready;
2954 uint16_t tx_bd_max = txq->nb_tx_desc;
2955 struct hns3_entry *tx_bak_pkt = &txq->sw_ring[tx_next_clean];
2956 struct hns3_desc *desc = &txq->tx_ring[tx_next_clean];
2957 struct rte_mbuf *mbuf;
2959 while ((!(desc->tx.tp_fe_sc_vld_ra_ri &
2960 rte_cpu_to_le_16(BIT(HNS3_TXD_VLD_B)))) &&
2961 tx_next_use != tx_next_clean) {
2962 mbuf = tx_bak_pkt->mbuf;
2964 rte_pktmbuf_free_seg(mbuf);
2965 tx_bak_pkt->mbuf = NULL;
2973 if (tx_next_clean >= tx_bd_max) {
2975 desc = txq->tx_ring;
2976 tx_bak_pkt = txq->sw_ring;
2980 txq->next_to_clean = tx_next_clean;
2981 txq->tx_bd_ready = tx_bd_ready;
2985 hns3_config_gro(struct hns3_hw *hw, bool en)
2987 struct hns3_cfg_gro_status_cmd *req;
2988 struct hns3_cmd_desc desc;
2991 hns3_cmd_setup_basic_desc(&desc, HNS3_OPC_GRO_GENERIC_CONFIG, false);
2992 req = (struct hns3_cfg_gro_status_cmd *)desc.data;
2994 req->gro_en = rte_cpu_to_le_16(en ? 1 : 0);
2996 ret = hns3_cmd_send(hw, &desc, 1);
2998 hns3_err(hw, "%s hardware GRO failed, ret = %d",
2999 en ? "enable" : "disable", ret);
3005 hns3_restore_gro_conf(struct hns3_hw *hw)
3011 offloads = hw->data->dev_conf.rxmode.offloads;
3012 gro_en = offloads & DEV_RX_OFFLOAD_TCP_LRO ? true : false;
3013 ret = hns3_config_gro(hw, gro_en);
3015 hns3_err(hw, "restore hardware GRO to %s failed, ret = %d",
3016 gro_en ? "enabled" : "disabled", ret);
3022 hns3_pkt_is_tso(struct rte_mbuf *m)
3024 return (m->tso_segsz != 0 && m->ol_flags & PKT_TX_TCP_SEG);
3028 hns3_set_tso(struct hns3_desc *desc, uint32_t paylen, struct rte_mbuf *rxm)
3030 if (!hns3_pkt_is_tso(rxm))
3033 if (paylen <= rxm->tso_segsz)
3036 desc->tx.type_cs_vlan_tso_len |= rte_cpu_to_le_32(BIT(HNS3_TXD_TSO_B));
3037 desc->tx.mss = rte_cpu_to_le_16(rxm->tso_segsz);
3041 hns3_fill_per_desc(struct hns3_desc *desc, struct rte_mbuf *rxm)
3043 desc->addr = rte_mbuf_data_iova(rxm);
3044 desc->tx.send_size = rte_cpu_to_le_16(rte_pktmbuf_data_len(rxm));
3045 desc->tx.tp_fe_sc_vld_ra_ri |= rte_cpu_to_le_16(BIT(HNS3_TXD_VLD_B));
3049 hns3_fill_first_desc(struct hns3_tx_queue *txq, struct hns3_desc *desc,
3050 struct rte_mbuf *rxm)
3052 uint64_t ol_flags = rxm->ol_flags;
3056 hdr_len = rxm->l2_len + rxm->l3_len + rxm->l4_len;
3057 hdr_len += (ol_flags & PKT_TX_TUNNEL_MASK) ?
3058 rxm->outer_l2_len + rxm->outer_l3_len : 0;
3059 paylen = rxm->pkt_len - hdr_len;
3060 desc->tx.paylen_fd_dop_ol4cs |= rte_cpu_to_le_32(paylen);
3061 hns3_set_tso(desc, paylen, rxm);
3064 * Currently, hardware doesn't support more than two layers VLAN offload
3065 * in Tx direction based on hns3 network engine. So when the number of
3066 * VLANs in the packets represented by rxm plus the number of VLAN
3067 * offload by hardware such as PVID etc, exceeds two, the packets will
3068 * be discarded or the original VLAN of the packets will be overwitted
3069 * by hardware. When the PF PVID is enabled by calling the API function
3070 * named rte_eth_dev_set_vlan_pvid or the VF PVID is enabled by the hns3
3071 * PF kernel ether driver, the outer VLAN tag will always be the PVID.
3072 * To avoid the VLAN of Tx descriptor is overwritten by PVID, it should
3073 * be added to the position close to the IP header when PVID is enabled.
3075 if (!txq->pvid_sw_shift_en && ol_flags & (PKT_TX_VLAN_PKT |
3077 desc->tx.ol_type_vlan_len_msec |=
3078 rte_cpu_to_le_32(BIT(HNS3_TXD_OVLAN_B));
3079 if (ol_flags & PKT_TX_QINQ_PKT)
3080 desc->tx.outer_vlan_tag =
3081 rte_cpu_to_le_16(rxm->vlan_tci_outer);
3083 desc->tx.outer_vlan_tag =
3084 rte_cpu_to_le_16(rxm->vlan_tci);
3087 if (ol_flags & PKT_TX_QINQ_PKT ||
3088 ((ol_flags & PKT_TX_VLAN_PKT) && txq->pvid_sw_shift_en)) {
3089 desc->tx.type_cs_vlan_tso_len |=
3090 rte_cpu_to_le_32(BIT(HNS3_TXD_VLAN_B));
3091 desc->tx.vlan_tag = rte_cpu_to_le_16(rxm->vlan_tci);
3094 if (ol_flags & PKT_TX_IEEE1588_TMST)
3095 desc->tx.tp_fe_sc_vld_ra_ri |=
3096 rte_cpu_to_le_16(BIT(HNS3_TXD_TSYN_B));
3100 hns3_tx_alloc_mbufs(struct rte_mempool *mb_pool, uint16_t nb_new_buf,
3101 struct rte_mbuf **alloc_mbuf)
3103 #define MAX_NON_TSO_BD_PER_PKT 18
3104 struct rte_mbuf *pkt_segs[MAX_NON_TSO_BD_PER_PKT];
3107 /* Allocate enough mbufs */
3108 if (rte_mempool_get_bulk(mb_pool, (void **)pkt_segs, nb_new_buf))
3111 for (i = 0; i < nb_new_buf - 1; i++)
3112 pkt_segs[i]->next = pkt_segs[i + 1];
3114 pkt_segs[nb_new_buf - 1]->next = NULL;
3115 pkt_segs[0]->nb_segs = nb_new_buf;
3116 *alloc_mbuf = pkt_segs[0];
3122 hns3_pktmbuf_copy_hdr(struct rte_mbuf *new_pkt, struct rte_mbuf *old_pkt)
3124 new_pkt->ol_flags = old_pkt->ol_flags;
3125 new_pkt->pkt_len = rte_pktmbuf_pkt_len(old_pkt);
3126 new_pkt->outer_l2_len = old_pkt->outer_l2_len;
3127 new_pkt->outer_l3_len = old_pkt->outer_l3_len;
3128 new_pkt->l2_len = old_pkt->l2_len;
3129 new_pkt->l3_len = old_pkt->l3_len;
3130 new_pkt->l4_len = old_pkt->l4_len;
3131 new_pkt->vlan_tci_outer = old_pkt->vlan_tci_outer;
3132 new_pkt->vlan_tci = old_pkt->vlan_tci;
3136 hns3_reassemble_tx_pkts(struct rte_mbuf *tx_pkt, struct rte_mbuf **new_pkt,
3137 uint8_t max_non_tso_bd_num)
3139 struct rte_mempool *mb_pool;
3140 struct rte_mbuf *new_mbuf;
3141 struct rte_mbuf *temp_new;
3142 struct rte_mbuf *temp;
3143 uint16_t last_buf_len;
3144 uint16_t nb_new_buf;
3154 mb_pool = tx_pkt->pool;
3155 buf_size = tx_pkt->buf_len - RTE_PKTMBUF_HEADROOM;
3156 nb_new_buf = (rte_pktmbuf_pkt_len(tx_pkt) - 1) / buf_size + 1;
3157 if (nb_new_buf > max_non_tso_bd_num)
3160 last_buf_len = rte_pktmbuf_pkt_len(tx_pkt) % buf_size;
3161 if (last_buf_len == 0)
3162 last_buf_len = buf_size;
3164 /* Allocate enough mbufs */
3165 ret = hns3_tx_alloc_mbufs(mb_pool, nb_new_buf, &new_mbuf);
3169 /* Copy the original packet content to the new mbufs */
3171 s = rte_pktmbuf_mtod(temp, char *);
3172 len_s = rte_pktmbuf_data_len(temp);
3173 temp_new = new_mbuf;
3174 while (temp != NULL && temp_new != NULL) {
3175 d = rte_pktmbuf_mtod(temp_new, char *);
3176 buf_len = temp_new->next == NULL ? last_buf_len : buf_size;
3180 len = RTE_MIN(len_s, len_d);
3184 len_d = len_d - len;
3185 len_s = len_s - len;
3191 s = rte_pktmbuf_mtod(temp, char *);
3192 len_s = rte_pktmbuf_data_len(temp);
3196 temp_new->data_len = buf_len;
3197 temp_new = temp_new->next;
3199 hns3_pktmbuf_copy_hdr(new_mbuf, tx_pkt);
3201 /* free original mbufs */
3202 rte_pktmbuf_free(tx_pkt);
3204 *new_pkt = new_mbuf;
3210 hns3_parse_outer_params(struct rte_mbuf *m, uint32_t *ol_type_vlan_len_msec)
3212 uint32_t tmp = *ol_type_vlan_len_msec;
3213 uint64_t ol_flags = m->ol_flags;
3215 /* (outer) IP header type */
3216 if (ol_flags & PKT_TX_OUTER_IPV4) {
3217 if (ol_flags & PKT_TX_OUTER_IP_CKSUM)
3218 tmp |= hns3_gen_field_val(HNS3_TXD_OL3T_M,
3219 HNS3_TXD_OL3T_S, HNS3_OL3T_IPV4_CSUM);
3221 tmp |= hns3_gen_field_val(HNS3_TXD_OL3T_M,
3222 HNS3_TXD_OL3T_S, HNS3_OL3T_IPV4_NO_CSUM);
3223 } else if (ol_flags & PKT_TX_OUTER_IPV6) {
3224 tmp |= hns3_gen_field_val(HNS3_TXD_OL3T_M, HNS3_TXD_OL3T_S,
3227 /* OL3 header size, defined in 4 bytes */
3228 tmp |= hns3_gen_field_val(HNS3_TXD_L3LEN_M, HNS3_TXD_L3LEN_S,
3229 m->outer_l3_len >> HNS3_L3_LEN_UNIT);
3230 *ol_type_vlan_len_msec = tmp;
3234 hns3_parse_inner_params(struct rte_mbuf *m, uint32_t *ol_type_vlan_len_msec,
3235 uint32_t *type_cs_vlan_tso_len)
3237 #define HNS3_NVGRE_HLEN 8
3238 uint32_t tmp_outer = *ol_type_vlan_len_msec;
3239 uint32_t tmp_inner = *type_cs_vlan_tso_len;
3240 uint64_t ol_flags = m->ol_flags;
3241 uint16_t inner_l2_len;
3243 switch (ol_flags & PKT_TX_TUNNEL_MASK) {
3244 case PKT_TX_TUNNEL_VXLAN_GPE:
3245 case PKT_TX_TUNNEL_GENEVE:
3246 case PKT_TX_TUNNEL_VXLAN:
3247 /* MAC in UDP tunnelling packet, include VxLAN and GENEVE */
3248 tmp_outer |= hns3_gen_field_val(HNS3_TXD_TUNTYPE_M,
3249 HNS3_TXD_TUNTYPE_S, HNS3_TUN_MAC_IN_UDP);
3251 * The inner l2 length of mbuf is the sum of outer l4 length,
3252 * tunneling header length and inner l2 length for a tunnel
3253 * packect. But in hns3 tx descriptor, the tunneling header
3254 * length is contained in the field of outer L4 length.
3255 * Therefore, driver need to calculate the outer L4 length and
3258 tmp_outer |= hns3_gen_field_val(HNS3_TXD_L4LEN_M,
3260 (uint8_t)RTE_ETHER_VXLAN_HLEN >>
3263 inner_l2_len = m->l2_len - RTE_ETHER_VXLAN_HLEN;
3265 case PKT_TX_TUNNEL_GRE:
3266 tmp_outer |= hns3_gen_field_val(HNS3_TXD_TUNTYPE_M,
3267 HNS3_TXD_TUNTYPE_S, HNS3_TUN_NVGRE);
3269 * For NVGRE tunnel packect, the outer L4 is empty. So only
3270 * fill the NVGRE header length to the outer L4 field.
3272 tmp_outer |= hns3_gen_field_val(HNS3_TXD_L4LEN_M,
3274 (uint8_t)HNS3_NVGRE_HLEN >> HNS3_L4_LEN_UNIT);
3276 inner_l2_len = m->l2_len - HNS3_NVGRE_HLEN;
3279 /* For non UDP / GRE tunneling, drop the tunnel packet */
3283 tmp_inner |= hns3_gen_field_val(HNS3_TXD_L2LEN_M, HNS3_TXD_L2LEN_S,
3284 inner_l2_len >> HNS3_L2_LEN_UNIT);
3285 /* OL2 header size, defined in 2 bytes */
3286 tmp_outer |= hns3_gen_field_val(HNS3_TXD_L2LEN_M, HNS3_TXD_L2LEN_S,
3287 m->outer_l2_len >> HNS3_L2_LEN_UNIT);
3289 *type_cs_vlan_tso_len = tmp_inner;
3290 *ol_type_vlan_len_msec = tmp_outer;
3296 hns3_parse_tunneling_params(struct hns3_tx_queue *txq, struct rte_mbuf *m,
3297 uint16_t tx_desc_id)
3299 struct hns3_desc *tx_ring = txq->tx_ring;
3300 struct hns3_desc *desc = &tx_ring[tx_desc_id];
3301 uint64_t ol_flags = m->ol_flags;
3302 uint32_t tmp_outer = 0;
3303 uint32_t tmp_inner = 0;
3308 * The tunnel header is contained in the inner L2 header field of the
3309 * mbuf, but for hns3 descriptor, it is contained in the outer L4. So,
3310 * there is a need that switching between them. To avoid multiple
3311 * calculations, the length of the L2 header include the outer and
3312 * inner, will be filled during the parsing of tunnel packects.
3314 if (!(ol_flags & PKT_TX_TUNNEL_MASK)) {
3316 * For non tunnel type the tunnel type id is 0, so no need to
3317 * assign a value to it. Only the inner(normal) L2 header length
3320 tmp_inner |= hns3_gen_field_val(HNS3_TXD_L2LEN_M,
3321 HNS3_TXD_L2LEN_S, m->l2_len >> HNS3_L2_LEN_UNIT);
3324 * If outer csum is not offload, the outer length may be filled
3325 * with 0. And the length of the outer header is added to the
3326 * inner l2_len. It would lead a cksum error. So driver has to
3327 * calculate the header length.
3329 if (unlikely(!(ol_flags &
3330 (PKT_TX_OUTER_IP_CKSUM | PKT_TX_OUTER_UDP_CKSUM)) &&
3331 m->outer_l2_len == 0)) {
3332 struct rte_net_hdr_lens hdr_len;
3333 (void)rte_net_get_ptype(m, &hdr_len,
3334 RTE_PTYPE_L2_MASK | RTE_PTYPE_L3_MASK);
3335 m->outer_l3_len = hdr_len.l3_len;
3336 m->outer_l2_len = hdr_len.l2_len;
3337 m->l2_len = m->l2_len - hdr_len.l2_len - hdr_len.l3_len;
3339 hns3_parse_outer_params(m, &tmp_outer);
3340 ret = hns3_parse_inner_params(m, &tmp_outer, &tmp_inner);
3345 desc->tx.ol_type_vlan_len_msec = rte_cpu_to_le_32(tmp_outer);
3346 desc->tx.type_cs_vlan_tso_len = rte_cpu_to_le_32(tmp_inner);
3347 tmp_ol4cs = ol_flags & PKT_TX_OUTER_UDP_CKSUM ?
3348 BIT(HNS3_TXD_OL4CS_B) : 0;
3349 desc->tx.paylen_fd_dop_ol4cs = rte_cpu_to_le_32(tmp_ol4cs);
3355 hns3_parse_l3_cksum_params(struct rte_mbuf *m, uint32_t *type_cs_vlan_tso_len)
3357 uint64_t ol_flags = m->ol_flags;
3361 tmp = *type_cs_vlan_tso_len;
3362 if (ol_flags & PKT_TX_IPV4)
3363 l3_type = HNS3_L3T_IPV4;
3364 else if (ol_flags & PKT_TX_IPV6)
3365 l3_type = HNS3_L3T_IPV6;
3367 l3_type = HNS3_L3T_NONE;
3369 /* inner(/normal) L3 header size, defined in 4 bytes */
3370 tmp |= hns3_gen_field_val(HNS3_TXD_L3LEN_M, HNS3_TXD_L3LEN_S,
3371 m->l3_len >> HNS3_L3_LEN_UNIT);
3373 tmp |= hns3_gen_field_val(HNS3_TXD_L3T_M, HNS3_TXD_L3T_S, l3_type);
3375 /* Enable L3 checksum offloads */
3376 if (ol_flags & PKT_TX_IP_CKSUM)
3377 tmp |= BIT(HNS3_TXD_L3CS_B);
3378 *type_cs_vlan_tso_len = tmp;
3382 hns3_parse_l4_cksum_params(struct rte_mbuf *m, uint32_t *type_cs_vlan_tso_len)
3384 uint64_t ol_flags = m->ol_flags;
3386 /* Enable L4 checksum offloads */
3387 switch (ol_flags & (PKT_TX_L4_MASK | PKT_TX_TCP_SEG)) {
3388 case PKT_TX_TCP_CKSUM | PKT_TX_TCP_SEG:
3389 case PKT_TX_TCP_CKSUM:
3390 case PKT_TX_TCP_SEG:
3391 tmp = *type_cs_vlan_tso_len;
3392 tmp |= hns3_gen_field_val(HNS3_TXD_L4T_M, HNS3_TXD_L4T_S,
3395 case PKT_TX_UDP_CKSUM:
3396 tmp = *type_cs_vlan_tso_len;
3397 tmp |= hns3_gen_field_val(HNS3_TXD_L4T_M, HNS3_TXD_L4T_S,
3400 case PKT_TX_SCTP_CKSUM:
3401 tmp = *type_cs_vlan_tso_len;
3402 tmp |= hns3_gen_field_val(HNS3_TXD_L4T_M, HNS3_TXD_L4T_S,
3408 tmp |= BIT(HNS3_TXD_L4CS_B);
3409 tmp |= hns3_gen_field_val(HNS3_TXD_L4LEN_M, HNS3_TXD_L4LEN_S,
3410 m->l4_len >> HNS3_L4_LEN_UNIT);
3411 *type_cs_vlan_tso_len = tmp;
3415 hns3_txd_enable_checksum(struct hns3_tx_queue *txq, struct rte_mbuf *m,
3416 uint16_t tx_desc_id)
3418 struct hns3_desc *tx_ring = txq->tx_ring;
3419 struct hns3_desc *desc = &tx_ring[tx_desc_id];
3422 hns3_parse_l3_cksum_params(m, &value);
3423 hns3_parse_l4_cksum_params(m, &value);
3425 desc->tx.type_cs_vlan_tso_len |= rte_cpu_to_le_32(value);
3429 hns3_pkt_need_linearized(struct rte_mbuf *tx_pkts, uint32_t bd_num,
3430 uint32_t max_non_tso_bd_num)
3432 struct rte_mbuf *m_first = tx_pkts;
3433 struct rte_mbuf *m_last = tx_pkts;
3434 uint32_t tot_len = 0;
3439 * Hardware requires that the sum of the data length of every 8
3440 * consecutive buffers is greater than MSS in hns3 network engine.
3441 * We simplify it by ensuring pkt_headlen + the first 8 consecutive
3442 * frags greater than gso header len + mss, and the remaining 7
3443 * consecutive frags greater than MSS except the last 7 frags.
3445 if (bd_num <= max_non_tso_bd_num)
3448 for (i = 0; m_last && i < max_non_tso_bd_num - 1;
3449 i++, m_last = m_last->next)
3450 tot_len += m_last->data_len;
3455 /* ensure the first 8 frags is greater than mss + header */
3456 hdr_len = tx_pkts->l2_len + tx_pkts->l3_len + tx_pkts->l4_len;
3457 hdr_len += (tx_pkts->ol_flags & PKT_TX_TUNNEL_MASK) ?
3458 tx_pkts->outer_l2_len + tx_pkts->outer_l3_len : 0;
3459 if (tot_len + m_last->data_len < tx_pkts->tso_segsz + hdr_len)
3463 * ensure the sum of the data length of every 7 consecutive buffer
3464 * is greater than mss except the last one.
3466 for (i = 0; m_last && i < bd_num - max_non_tso_bd_num; i++) {
3467 tot_len -= m_first->data_len;
3468 tot_len += m_last->data_len;
3470 if (tot_len < tx_pkts->tso_segsz)
3473 m_first = m_first->next;
3474 m_last = m_last->next;
3481 hns3_outer_ipv4_cksum_prepared(struct rte_mbuf *m, uint64_t ol_flags,
3484 struct rte_ipv4_hdr *ipv4_hdr;
3485 ipv4_hdr = rte_pktmbuf_mtod_offset(m, struct rte_ipv4_hdr *,
3487 if (ol_flags & PKT_TX_OUTER_IP_CKSUM)
3488 ipv4_hdr->hdr_checksum = 0;
3489 if (ol_flags & PKT_TX_OUTER_UDP_CKSUM) {
3490 struct rte_udp_hdr *udp_hdr;
3492 * If OUTER_UDP_CKSUM is support, HW can caclulate the pseudo
3493 * header for TSO packets
3495 if (ol_flags & PKT_TX_TCP_SEG)
3497 udp_hdr = rte_pktmbuf_mtod_offset(m, struct rte_udp_hdr *,
3498 m->outer_l2_len + m->outer_l3_len);
3499 udp_hdr->dgram_cksum = rte_ipv4_phdr_cksum(ipv4_hdr, ol_flags);
3503 *l4_proto = ipv4_hdr->next_proto_id;
3508 hns3_outer_ipv6_cksum_prepared(struct rte_mbuf *m, uint64_t ol_flags,
3511 struct rte_ipv6_hdr *ipv6_hdr;
3512 ipv6_hdr = rte_pktmbuf_mtod_offset(m, struct rte_ipv6_hdr *,
3514 if (ol_flags & PKT_TX_OUTER_UDP_CKSUM) {
3515 struct rte_udp_hdr *udp_hdr;
3517 * If OUTER_UDP_CKSUM is support, HW can caclulate the pseudo
3518 * header for TSO packets
3520 if (ol_flags & PKT_TX_TCP_SEG)
3522 udp_hdr = rte_pktmbuf_mtod_offset(m, struct rte_udp_hdr *,
3523 m->outer_l2_len + m->outer_l3_len);
3524 udp_hdr->dgram_cksum = rte_ipv6_phdr_cksum(ipv6_hdr, ol_flags);
3528 *l4_proto = ipv6_hdr->proto;
3533 hns3_outer_header_cksum_prepare(struct rte_mbuf *m)
3535 uint64_t ol_flags = m->ol_flags;
3536 uint32_t paylen, hdr_len, l4_proto;
3537 struct rte_udp_hdr *udp_hdr;
3539 if (!(ol_flags & (PKT_TX_OUTER_IPV4 | PKT_TX_OUTER_IPV6)))
3542 if (ol_flags & PKT_TX_OUTER_IPV4) {
3543 if (hns3_outer_ipv4_cksum_prepared(m, ol_flags, &l4_proto))
3546 if (hns3_outer_ipv6_cksum_prepared(m, ol_flags, &l4_proto))
3550 /* driver should ensure the outer udp cksum is 0 for TUNNEL TSO */
3551 if (l4_proto == IPPROTO_UDP && (ol_flags & PKT_TX_TCP_SEG)) {
3552 hdr_len = m->l2_len + m->l3_len + m->l4_len;
3553 hdr_len += m->outer_l2_len + m->outer_l3_len;
3554 paylen = m->pkt_len - hdr_len;
3555 if (paylen <= m->tso_segsz)
3557 udp_hdr = rte_pktmbuf_mtod_offset(m, struct rte_udp_hdr *,
3560 udp_hdr->dgram_cksum = 0;
3565 hns3_check_tso_pkt_valid(struct rte_mbuf *m)
3567 uint32_t tmp_data_len_sum = 0;
3568 uint16_t nb_buf = m->nb_segs;
3569 uint32_t paylen, hdr_len;
3570 struct rte_mbuf *m_seg;
3573 if (nb_buf > HNS3_MAX_TSO_BD_PER_PKT)
3576 hdr_len = m->l2_len + m->l3_len + m->l4_len;
3577 hdr_len += (m->ol_flags & PKT_TX_TUNNEL_MASK) ?
3578 m->outer_l2_len + m->outer_l3_len : 0;
3579 if (hdr_len > HNS3_MAX_TSO_HDR_SIZE)
3582 paylen = m->pkt_len - hdr_len;
3583 if (paylen > HNS3_MAX_BD_PAYLEN)
3587 * The TSO header (include outer and inner L2, L3 and L4 header)
3588 * should be provided by three descriptors in maximum in hns3 network
3592 for (i = 0; m_seg != NULL && i < HNS3_MAX_TSO_HDR_BD_NUM && i < nb_buf;
3593 i++, m_seg = m_seg->next) {
3594 tmp_data_len_sum += m_seg->data_len;
3597 if (hdr_len > tmp_data_len_sum)
3603 #ifdef RTE_LIBRTE_ETHDEV_DEBUG
3605 hns3_vld_vlan_chk(struct hns3_tx_queue *txq, struct rte_mbuf *m)
3607 struct rte_ether_hdr *eh;
3608 struct rte_vlan_hdr *vh;
3610 if (!txq->pvid_sw_shift_en)
3614 * Due to hardware limitations, we only support two-layer VLAN hardware
3615 * offload in Tx direction based on hns3 network engine, so when PVID is
3616 * enabled, QinQ insert is no longer supported.
3617 * And when PVID is enabled, in the following two cases:
3618 * i) packets with more than two VLAN tags.
3619 * ii) packets with one VLAN tag while the hardware VLAN insert is
3621 * The packets will be regarded as abnormal packets and discarded by
3622 * hardware in Tx direction. For debugging purposes, a validation check
3623 * for these types of packets is added to the '.tx_pkt_prepare' ops
3624 * implementation function named hns3_prep_pkts to inform users that
3625 * these packets will be discarded.
3627 if (m->ol_flags & PKT_TX_QINQ_PKT)
3630 eh = rte_pktmbuf_mtod(m, struct rte_ether_hdr *);
3631 if (eh->ether_type == rte_cpu_to_be_16(RTE_ETHER_TYPE_VLAN)) {
3632 if (m->ol_flags & PKT_TX_VLAN_PKT)
3635 /* Ensure the incoming packet is not a QinQ packet */
3636 vh = (struct rte_vlan_hdr *)(eh + 1);
3637 if (vh->eth_proto == rte_cpu_to_be_16(RTE_ETHER_TYPE_VLAN))
3646 hns3_udp_cksum_help(struct rte_mbuf *m)
3648 uint64_t ol_flags = m->ol_flags;
3652 if (ol_flags & PKT_TX_IPV4) {
3653 struct rte_ipv4_hdr *ipv4_hdr = rte_pktmbuf_mtod_offset(m,
3654 struct rte_ipv4_hdr *, m->l2_len);
3655 l4_len = rte_be_to_cpu_16(ipv4_hdr->total_length) - m->l3_len;
3657 struct rte_ipv6_hdr *ipv6_hdr = rte_pktmbuf_mtod_offset(m,
3658 struct rte_ipv6_hdr *, m->l2_len);
3659 l4_len = rte_be_to_cpu_16(ipv6_hdr->payload_len);
3662 rte_raw_cksum_mbuf(m, m->l2_len + m->l3_len, l4_len, &cksum);
3666 * RFC 768:If the computed checksum is zero for UDP, it is transmitted
3672 return (uint16_t)cksum;
3676 hns3_validate_tunnel_cksum(struct hns3_tx_queue *tx_queue, struct rte_mbuf *m)
3678 uint64_t ol_flags = m->ol_flags;
3679 struct rte_udp_hdr *udp_hdr;
3682 if (tx_queue->udp_cksum_mode == HNS3_SPECIAL_PORT_HW_CKSUM_MODE ||
3683 ol_flags & PKT_TX_TUNNEL_MASK ||
3684 (ol_flags & PKT_TX_L4_MASK) != PKT_TX_UDP_CKSUM)
3687 * A UDP packet with the same dst_port as VXLAN\VXLAN_GPE\GENEVE will
3688 * be recognized as a tunnel packet in HW. In this case, if UDP CKSUM
3689 * offload is set and the tunnel mask has not been set, the CKSUM will
3690 * be wrong since the header length is wrong and driver should complete
3691 * the CKSUM to avoid CKSUM error.
3693 udp_hdr = rte_pktmbuf_mtod_offset(m, struct rte_udp_hdr *,
3694 m->l2_len + m->l3_len);
3695 dst_port = rte_be_to_cpu_16(udp_hdr->dst_port);
3697 case RTE_VXLAN_DEFAULT_PORT:
3698 case RTE_VXLAN_GPE_DEFAULT_PORT:
3699 case RTE_GENEVE_DEFAULT_PORT:
3700 udp_hdr->dgram_cksum = hns3_udp_cksum_help(m);
3701 m->ol_flags = ol_flags & ~PKT_TX_L4_MASK;
3709 hns3_prep_pkt_proc(struct hns3_tx_queue *tx_queue, struct rte_mbuf *m)
3713 #ifdef RTE_LIBRTE_ETHDEV_DEBUG
3714 ret = rte_validate_tx_offload(m);
3720 ret = hns3_vld_vlan_chk(tx_queue, m);
3726 if (hns3_pkt_is_tso(m)) {
3727 if (hns3_pkt_need_linearized(m, m->nb_segs,
3728 tx_queue->max_non_tso_bd_num) ||
3729 hns3_check_tso_pkt_valid(m)) {
3734 if (tx_queue->tso_mode != HNS3_TSO_SW_CAL_PSEUDO_H_CSUM) {
3736 * (tso mode != HNS3_TSO_SW_CAL_PSEUDO_H_CSUM) means
3737 * hardware support recalculate the TCP pseudo header
3738 * checksum of packets that need TSO, so network driver
3739 * software not need to recalculate it.
3741 hns3_outer_header_cksum_prepare(m);
3746 ret = rte_net_intel_cksum_prepare(m);
3752 if (!hns3_validate_tunnel_cksum(tx_queue, m))
3755 hns3_outer_header_cksum_prepare(m);
3761 hns3_prep_pkts(__rte_unused void *tx_queue, struct rte_mbuf **tx_pkts,
3767 for (i = 0; i < nb_pkts; i++) {
3769 if (hns3_prep_pkt_proc(tx_queue, m))
3777 hns3_parse_cksum(struct hns3_tx_queue *txq, uint16_t tx_desc_id,
3780 struct hns3_desc *tx_ring = txq->tx_ring;
3781 struct hns3_desc *desc = &tx_ring[tx_desc_id];
3783 /* Enable checksum offloading */
3784 if (m->ol_flags & HNS3_TX_CKSUM_OFFLOAD_MASK) {
3785 /* Fill in tunneling parameters if necessary */
3786 if (hns3_parse_tunneling_params(txq, m, tx_desc_id)) {
3787 txq->dfx_stats.unsupported_tunnel_pkt_cnt++;
3791 hns3_txd_enable_checksum(txq, m, tx_desc_id);
3793 /* clear the control bit */
3794 desc->tx.type_cs_vlan_tso_len = 0;
3795 desc->tx.ol_type_vlan_len_msec = 0;
3802 hns3_check_non_tso_pkt(uint16_t nb_buf, struct rte_mbuf **m_seg,
3803 struct rte_mbuf *tx_pkt, struct hns3_tx_queue *txq)
3805 uint8_t max_non_tso_bd_num;
3806 struct rte_mbuf *new_pkt;
3809 if (hns3_pkt_is_tso(*m_seg))
3813 * If packet length is greater than HNS3_MAX_FRAME_LEN
3814 * driver support, the packet will be ignored.
3816 if (unlikely(rte_pktmbuf_pkt_len(tx_pkt) > HNS3_MAX_FRAME_LEN)) {
3817 txq->dfx_stats.over_length_pkt_cnt++;
3821 max_non_tso_bd_num = txq->max_non_tso_bd_num;
3822 if (unlikely(nb_buf > max_non_tso_bd_num)) {
3823 txq->dfx_stats.exceed_limit_bd_pkt_cnt++;
3824 ret = hns3_reassemble_tx_pkts(tx_pkt, &new_pkt,
3825 max_non_tso_bd_num);
3827 txq->dfx_stats.exceed_limit_bd_reassem_fail++;
3837 hns3_tx_free_buffer_simple(struct hns3_tx_queue *txq)
3839 struct hns3_entry *tx_entry;
3840 struct hns3_desc *desc;
3841 uint16_t tx_next_clean;
3845 if (HNS3_GET_TX_QUEUE_PEND_BD_NUM(txq) < txq->tx_rs_thresh)
3849 * All mbufs can be released only when the VLD bits of all
3850 * descriptors in a batch are cleared.
3852 tx_next_clean = (txq->next_to_clean + txq->tx_rs_thresh - 1) %
3854 desc = &txq->tx_ring[tx_next_clean];
3855 for (i = 0; i < txq->tx_rs_thresh; i++) {
3856 if (rte_le_to_cpu_16(desc->tx.tp_fe_sc_vld_ra_ri) &
3857 BIT(HNS3_TXD_VLD_B))
3862 tx_entry = &txq->sw_ring[txq->next_to_clean];
3864 for (i = 0; i < txq->tx_rs_thresh; i++)
3865 rte_prefetch0((tx_entry + i)->mbuf);
3866 for (i = 0; i < txq->tx_rs_thresh; i++, tx_entry++) {
3867 rte_mempool_put(tx_entry->mbuf->pool, tx_entry->mbuf);
3868 tx_entry->mbuf = NULL;
3871 txq->next_to_clean = (tx_next_clean + 1) % txq->nb_tx_desc;
3872 txq->tx_bd_ready += txq->tx_rs_thresh;
3877 hns3_tx_backup_1mbuf(struct hns3_entry *tx_entry, struct rte_mbuf **pkts)
3879 tx_entry->mbuf = pkts[0];
3883 hns3_tx_backup_4mbuf(struct hns3_entry *tx_entry, struct rte_mbuf **pkts)
3885 hns3_tx_backup_1mbuf(&tx_entry[0], &pkts[0]);
3886 hns3_tx_backup_1mbuf(&tx_entry[1], &pkts[1]);
3887 hns3_tx_backup_1mbuf(&tx_entry[2], &pkts[2]);
3888 hns3_tx_backup_1mbuf(&tx_entry[3], &pkts[3]);
3892 hns3_tx_setup_4bd(struct hns3_desc *txdp, struct rte_mbuf **pkts)
3894 #define PER_LOOP_NUM 4
3895 const uint16_t bd_flag = BIT(HNS3_TXD_VLD_B) | BIT(HNS3_TXD_FE_B);
3899 for (i = 0; i < PER_LOOP_NUM; i++, txdp++, pkts++) {
3900 dma_addr = rte_mbuf_data_iova(*pkts);
3901 txdp->addr = rte_cpu_to_le_64(dma_addr);
3902 txdp->tx.send_size = rte_cpu_to_le_16((*pkts)->data_len);
3903 txdp->tx.paylen_fd_dop_ol4cs = 0;
3904 txdp->tx.type_cs_vlan_tso_len = 0;
3905 txdp->tx.ol_type_vlan_len_msec = 0;
3906 txdp->tx.tp_fe_sc_vld_ra_ri = rte_cpu_to_le_16(bd_flag);
3911 hns3_tx_setup_1bd(struct hns3_desc *txdp, struct rte_mbuf **pkts)
3913 const uint16_t bd_flag = BIT(HNS3_TXD_VLD_B) | BIT(HNS3_TXD_FE_B);
3916 dma_addr = rte_mbuf_data_iova(*pkts);
3917 txdp->addr = rte_cpu_to_le_64(dma_addr);
3918 txdp->tx.send_size = rte_cpu_to_le_16((*pkts)->data_len);
3919 txdp->tx.paylen_fd_dop_ol4cs = 0;
3920 txdp->tx.type_cs_vlan_tso_len = 0;
3921 txdp->tx.ol_type_vlan_len_msec = 0;
3922 txdp->tx.tp_fe_sc_vld_ra_ri = rte_cpu_to_le_16(bd_flag);
3926 hns3_tx_fill_hw_ring(struct hns3_tx_queue *txq,
3927 struct rte_mbuf **pkts,
3930 #define PER_LOOP_NUM 4
3931 #define PER_LOOP_MASK (PER_LOOP_NUM - 1)
3932 struct hns3_desc *txdp = &txq->tx_ring[txq->next_to_use];
3933 struct hns3_entry *tx_entry = &txq->sw_ring[txq->next_to_use];
3934 const uint32_t mainpart = (nb_pkts & ((uint32_t)~PER_LOOP_MASK));
3935 const uint32_t leftover = (nb_pkts & ((uint32_t)PER_LOOP_MASK));
3938 for (i = 0; i < mainpart; i += PER_LOOP_NUM) {
3939 hns3_tx_backup_4mbuf(tx_entry + i, pkts + i);
3940 hns3_tx_setup_4bd(txdp + i, pkts + i);
3942 /* Increment bytes counter */
3944 for (j = 0; j < PER_LOOP_NUM; j++)
3945 txq->basic_stats.bytes += pkts[i + j]->pkt_len;
3947 if (unlikely(leftover > 0)) {
3948 for (i = 0; i < leftover; i++) {
3949 hns3_tx_backup_1mbuf(tx_entry + mainpart + i,
3950 pkts + mainpart + i);
3951 hns3_tx_setup_1bd(txdp + mainpart + i,
3952 pkts + mainpart + i);
3954 /* Increment bytes counter */
3955 txq->basic_stats.bytes += pkts[mainpart + i]->pkt_len;
3961 hns3_xmit_pkts_simple(void *tx_queue,
3962 struct rte_mbuf **tx_pkts,
3965 struct hns3_tx_queue *txq = tx_queue;
3968 hns3_tx_free_buffer_simple(txq);
3970 nb_pkts = RTE_MIN(txq->tx_bd_ready, nb_pkts);
3971 if (unlikely(nb_pkts == 0)) {
3972 if (txq->tx_bd_ready == 0)
3973 txq->dfx_stats.queue_full_cnt++;
3977 txq->tx_bd_ready -= nb_pkts;
3978 if (txq->next_to_use + nb_pkts > txq->nb_tx_desc) {
3979 nb_tx = txq->nb_tx_desc - txq->next_to_use;
3980 hns3_tx_fill_hw_ring(txq, tx_pkts, nb_tx);
3981 txq->next_to_use = 0;
3984 hns3_tx_fill_hw_ring(txq, tx_pkts + nb_tx, nb_pkts - nb_tx);
3985 txq->next_to_use += nb_pkts - nb_tx;
3987 hns3_write_reg_opt(txq->io_tail_reg, nb_pkts);
3993 hns3_xmit_pkts(void *tx_queue, struct rte_mbuf **tx_pkts, uint16_t nb_pkts)
3995 struct hns3_tx_queue *txq = tx_queue;
3996 struct hns3_entry *tx_bak_pkt;
3997 struct hns3_desc *tx_ring;
3998 struct rte_mbuf *tx_pkt;
3999 struct rte_mbuf *m_seg;
4000 struct hns3_desc *desc;
4001 uint32_t nb_hold = 0;
4002 uint16_t tx_next_use;
4003 uint16_t tx_pkt_num;
4009 /* free useless buffer */
4010 hns3_tx_free_useless_buffer(txq);
4012 tx_next_use = txq->next_to_use;
4013 tx_bd_max = txq->nb_tx_desc;
4014 tx_pkt_num = nb_pkts;
4015 tx_ring = txq->tx_ring;
4018 tx_bak_pkt = &txq->sw_ring[tx_next_use];
4019 for (nb_tx = 0; nb_tx < tx_pkt_num; nb_tx++) {
4020 tx_pkt = *tx_pkts++;
4022 nb_buf = tx_pkt->nb_segs;
4024 if (nb_buf > txq->tx_bd_ready) {
4025 txq->dfx_stats.queue_full_cnt++;
4033 * If packet length is less than minimum packet length supported
4034 * by hardware in Tx direction, driver need to pad it to avoid
4037 if (unlikely(rte_pktmbuf_pkt_len(tx_pkt) <
4038 txq->min_tx_pkt_len)) {
4042 add_len = txq->min_tx_pkt_len -
4043 rte_pktmbuf_pkt_len(tx_pkt);
4044 appended = rte_pktmbuf_append(tx_pkt, add_len);
4045 if (appended == NULL) {
4046 txq->dfx_stats.pkt_padding_fail_cnt++;
4050 memset(appended, 0, add_len);
4055 if (hns3_check_non_tso_pkt(nb_buf, &m_seg, tx_pkt, txq))
4058 if (hns3_parse_cksum(txq, tx_next_use, m_seg))
4062 desc = &tx_ring[tx_next_use];
4065 * If the packet is divided into multiple Tx Buffer Descriptors,
4066 * only need to fill vlan, paylen and tso into the first Tx
4067 * Buffer Descriptor.
4069 hns3_fill_first_desc(txq, desc, m_seg);
4072 desc = &tx_ring[tx_next_use];
4074 * Fill valid bits, DMA address and data length for each
4075 * Tx Buffer Descriptor.
4077 hns3_fill_per_desc(desc, m_seg);
4078 tx_bak_pkt->mbuf = m_seg;
4079 m_seg = m_seg->next;
4082 if (tx_next_use >= tx_bd_max) {
4084 tx_bak_pkt = txq->sw_ring;
4088 } while (m_seg != NULL);
4090 /* Add end flag for the last Tx Buffer Descriptor */
4091 desc->tx.tp_fe_sc_vld_ra_ri |=
4092 rte_cpu_to_le_16(BIT(HNS3_TXD_FE_B));
4094 /* Increment bytes counter */
4095 txq->basic_stats.bytes += tx_pkt->pkt_len;
4097 txq->next_to_use = tx_next_use;
4098 txq->tx_bd_ready -= i;
4104 hns3_write_reg_opt(txq->io_tail_reg, nb_hold);
4110 hns3_tx_check_vec_support(__rte_unused struct rte_eth_dev *dev)
4116 hns3_xmit_pkts_vec(__rte_unused void *tx_queue,
4117 __rte_unused struct rte_mbuf **tx_pkts,
4118 __rte_unused uint16_t nb_pkts)
4124 hns3_xmit_pkts_vec_sve(void __rte_unused * tx_queue,
4125 struct rte_mbuf __rte_unused **tx_pkts,
4126 uint16_t __rte_unused nb_pkts)
4132 hns3_tx_burst_mode_get(struct rte_eth_dev *dev, __rte_unused uint16_t queue_id,
4133 struct rte_eth_burst_mode *mode)
4135 eth_tx_burst_t pkt_burst = dev->tx_pkt_burst;
4136 const char *info = NULL;
4138 if (pkt_burst == hns3_xmit_pkts_simple)
4139 info = "Scalar Simple";
4140 else if (pkt_burst == hns3_xmit_pkts)
4142 else if (pkt_burst == hns3_xmit_pkts_vec)
4143 info = "Vector Neon";
4144 else if (pkt_burst == hns3_xmit_pkts_vec_sve)
4145 info = "Vector Sve";
4150 snprintf(mode->info, sizeof(mode->info), "%s", info);
4156 hns3_tx_check_simple_support(struct rte_eth_dev *dev)
4158 uint64_t offloads = dev->data->dev_conf.txmode.offloads;
4160 struct hns3_hw *hw = HNS3_DEV_PRIVATE_TO_HW(dev->data->dev_private);
4161 if (hns3_dev_ptp_supported(hw))
4164 return (offloads == (offloads & DEV_TX_OFFLOAD_MBUF_FAST_FREE));
4167 static eth_tx_burst_t
4168 hns3_get_tx_function(struct rte_eth_dev *dev, eth_tx_prep_t *prep)
4170 struct hns3_adapter *hns = dev->data->dev_private;
4171 bool vec_allowed, sve_allowed, simple_allowed;
4173 vec_allowed = hns3_tx_check_vec_support(dev) == 0;
4174 sve_allowed = vec_allowed && hns3_check_sve_support();
4175 simple_allowed = hns3_tx_check_simple_support(dev);
4179 if (hns->tx_func_hint == HNS3_IO_FUNC_HINT_VEC && vec_allowed)
4180 return hns3_xmit_pkts_vec;
4181 if (hns->tx_func_hint == HNS3_IO_FUNC_HINT_SVE && sve_allowed)
4182 return hns3_xmit_pkts_vec_sve;
4183 if (hns->tx_func_hint == HNS3_IO_FUNC_HINT_SIMPLE && simple_allowed)
4184 return hns3_xmit_pkts_simple;
4185 if (hns->tx_func_hint == HNS3_IO_FUNC_HINT_COMMON) {
4186 *prep = hns3_prep_pkts;
4187 return hns3_xmit_pkts;
4191 return hns3_xmit_pkts_vec;
4193 return hns3_xmit_pkts_simple;
4195 *prep = hns3_prep_pkts;
4196 return hns3_xmit_pkts;
4200 hns3_dummy_rxtx_burst(void *dpdk_txq __rte_unused,
4201 struct rte_mbuf **pkts __rte_unused,
4202 uint16_t pkts_n __rte_unused)
4208 hns3_trace_rxtx_function(struct rte_eth_dev *dev)
4210 struct hns3_hw *hw = HNS3_DEV_PRIVATE_TO_HW(dev->data->dev_private);
4211 struct rte_eth_burst_mode rx_mode;
4212 struct rte_eth_burst_mode tx_mode;
4214 memset(&rx_mode, 0, sizeof(rx_mode));
4215 memset(&tx_mode, 0, sizeof(tx_mode));
4216 (void)hns3_rx_burst_mode_get(dev, 0, &rx_mode);
4217 (void)hns3_tx_burst_mode_get(dev, 0, &tx_mode);
4219 hns3_dbg(hw, "using rx_pkt_burst: %s, tx_pkt_burst: %s.",
4220 rx_mode.info, tx_mode.info);
4223 void hns3_set_rxtx_function(struct rte_eth_dev *eth_dev)
4225 struct hns3_adapter *hns = eth_dev->data->dev_private;
4226 eth_tx_prep_t prep = NULL;
4228 if (hns->hw.adapter_state == HNS3_NIC_STARTED &&
4229 __atomic_load_n(&hns->hw.reset.resetting, __ATOMIC_RELAXED) == 0) {
4230 eth_dev->rx_pkt_burst = hns3_get_rx_function(eth_dev);
4231 eth_dev->rx_descriptor_status = hns3_dev_rx_descriptor_status;
4232 eth_dev->tx_pkt_burst = hns3_get_tx_function(eth_dev, &prep);
4233 eth_dev->tx_pkt_prepare = prep;
4234 eth_dev->tx_descriptor_status = hns3_dev_tx_descriptor_status;
4235 hns3_trace_rxtx_function(eth_dev);
4237 eth_dev->rx_pkt_burst = hns3_dummy_rxtx_burst;
4238 eth_dev->tx_pkt_burst = hns3_dummy_rxtx_burst;
4239 eth_dev->tx_pkt_prepare = hns3_dummy_rxtx_burst;
4244 hns3_rxq_info_get(struct rte_eth_dev *dev, uint16_t queue_id,
4245 struct rte_eth_rxq_info *qinfo)
4247 struct hns3_rx_queue *rxq = dev->data->rx_queues[queue_id];
4249 qinfo->mp = rxq->mb_pool;
4250 qinfo->nb_desc = rxq->nb_rx_desc;
4251 qinfo->scattered_rx = dev->data->scattered_rx;
4252 /* Report the HW Rx buffer length to user */
4253 qinfo->rx_buf_size = rxq->rx_buf_len;
4256 * If there are no available Rx buffer descriptors, incoming packets
4257 * are always dropped by hardware based on hns3 network engine.
4259 qinfo->conf.rx_drop_en = 1;
4260 qinfo->conf.offloads = dev->data->dev_conf.rxmode.offloads;
4261 qinfo->conf.rx_free_thresh = rxq->rx_free_thresh;
4262 qinfo->conf.rx_deferred_start = rxq->rx_deferred_start;
4266 hns3_txq_info_get(struct rte_eth_dev *dev, uint16_t queue_id,
4267 struct rte_eth_txq_info *qinfo)
4269 struct hns3_tx_queue *txq = dev->data->tx_queues[queue_id];
4271 qinfo->nb_desc = txq->nb_tx_desc;
4272 qinfo->conf.offloads = dev->data->dev_conf.txmode.offloads;
4273 qinfo->conf.tx_rs_thresh = txq->tx_rs_thresh;
4274 qinfo->conf.tx_free_thresh = txq->tx_free_thresh;
4275 qinfo->conf.tx_deferred_start = txq->tx_deferred_start;
4279 hns3_dev_rx_queue_start(struct rte_eth_dev *dev, uint16_t rx_queue_id)
4281 struct hns3_hw *hw = HNS3_DEV_PRIVATE_TO_HW(dev->data->dev_private);
4282 struct hns3_rx_queue *rxq = dev->data->rx_queues[rx_queue_id];
4283 struct hns3_adapter *hns = HNS3_DEV_HW_TO_ADAPTER(hw);
4286 if (!hns3_dev_indep_txrx_supported(hw))
4289 ret = hns3_reset_queue(hw, rx_queue_id, HNS3_RING_TYPE_RX);
4291 hns3_err(hw, "fail to reset Rx queue %u, ret = %d.",
4296 ret = hns3_init_rxq(hns, rx_queue_id);
4298 hns3_err(hw, "fail to init Rx queue %u, ret = %d.",
4303 hns3_enable_rxq(rxq, true);
4304 dev->data->rx_queue_state[rx_queue_id] = RTE_ETH_QUEUE_STATE_STARTED;
4310 hns3_reset_sw_rxq(struct hns3_rx_queue *rxq)
4312 rxq->next_to_use = 0;
4313 rxq->rx_rearm_start = 0;
4314 rxq->rx_free_hold = 0;
4315 rxq->rx_rearm_nb = 0;
4316 rxq->pkt_first_seg = NULL;
4317 rxq->pkt_last_seg = NULL;
4318 memset(&rxq->rx_ring[0], 0, rxq->nb_rx_desc * sizeof(struct hns3_desc));
4319 hns3_rxq_vec_setup(rxq);
4323 hns3_dev_rx_queue_stop(struct rte_eth_dev *dev, uint16_t rx_queue_id)
4325 struct hns3_hw *hw = HNS3_DEV_PRIVATE_TO_HW(dev->data->dev_private);
4326 struct hns3_rx_queue *rxq = dev->data->rx_queues[rx_queue_id];
4328 if (!hns3_dev_indep_txrx_supported(hw))
4331 hns3_enable_rxq(rxq, false);
4333 hns3_rx_queue_release_mbufs(rxq);
4335 hns3_reset_sw_rxq(rxq);
4336 dev->data->rx_queue_state[rx_queue_id] = RTE_ETH_QUEUE_STATE_STOPPED;
4342 hns3_dev_tx_queue_start(struct rte_eth_dev *dev, uint16_t tx_queue_id)
4344 struct hns3_hw *hw = HNS3_DEV_PRIVATE_TO_HW(dev->data->dev_private);
4345 struct hns3_tx_queue *txq = dev->data->tx_queues[tx_queue_id];
4348 if (!hns3_dev_indep_txrx_supported(hw))
4351 ret = hns3_reset_queue(hw, tx_queue_id, HNS3_RING_TYPE_TX);
4353 hns3_err(hw, "fail to reset Tx queue %u, ret = %d.",
4359 hns3_enable_txq(txq, true);
4360 dev->data->tx_queue_state[tx_queue_id] = RTE_ETH_QUEUE_STATE_STARTED;
4366 hns3_dev_tx_queue_stop(struct rte_eth_dev *dev, uint16_t tx_queue_id)
4368 struct hns3_hw *hw = HNS3_DEV_PRIVATE_TO_HW(dev->data->dev_private);
4369 struct hns3_tx_queue *txq = dev->data->tx_queues[tx_queue_id];
4371 if (!hns3_dev_indep_txrx_supported(hw))
4374 hns3_enable_txq(txq, false);
4375 hns3_tx_queue_release_mbufs(txq);
4377 * All the mbufs in sw_ring are released and all the pointers in sw_ring
4378 * are set to NULL. If this queue is still called by upper layer,
4379 * residual SW status of this txq may cause these pointers in sw_ring
4380 * which have been set to NULL to be released again. To avoid it,
4384 dev->data->tx_queue_state[tx_queue_id] = RTE_ETH_QUEUE_STATE_STOPPED;
4390 hns3_tx_done_cleanup_full(struct hns3_tx_queue *txq, uint32_t free_cnt)
4392 uint16_t next_to_clean = txq->next_to_clean;
4393 uint16_t next_to_use = txq->next_to_use;
4394 uint16_t tx_bd_ready = txq->tx_bd_ready;
4395 struct hns3_entry *tx_pkt = &txq->sw_ring[next_to_clean];
4396 struct hns3_desc *desc = &txq->tx_ring[next_to_clean];
4399 if (free_cnt == 0 || free_cnt > txq->nb_tx_desc)
4400 free_cnt = txq->nb_tx_desc;
4402 for (idx = 0; idx < free_cnt; idx++) {
4403 if (next_to_clean == next_to_use)
4406 if (desc->tx.tp_fe_sc_vld_ra_ri &
4407 rte_cpu_to_le_16(BIT(HNS3_TXD_VLD_B)))
4410 if (tx_pkt->mbuf != NULL) {
4411 rte_pktmbuf_free_seg(tx_pkt->mbuf);
4412 tx_pkt->mbuf = NULL;
4419 if (next_to_clean == txq->nb_tx_desc) {
4420 tx_pkt = txq->sw_ring;
4421 desc = txq->tx_ring;
4427 txq->next_to_clean = next_to_clean;
4428 txq->tx_bd_ready = tx_bd_ready;
4435 hns3_tx_done_cleanup(void *txq, uint32_t free_cnt)
4437 struct hns3_tx_queue *q = (struct hns3_tx_queue *)txq;
4438 struct rte_eth_dev *dev = &rte_eth_devices[q->port_id];
4440 if (dev->tx_pkt_burst == hns3_xmit_pkts)
4441 return hns3_tx_done_cleanup_full(q, free_cnt);
4442 else if (dev->tx_pkt_burst == hns3_dummy_rxtx_burst)
4449 hns3_dev_rx_descriptor_status(void *rx_queue, uint16_t offset)
4451 volatile struct hns3_desc *rxdp;
4452 struct hns3_rx_queue *rxq;
4453 struct rte_eth_dev *dev;
4454 uint32_t bd_base_info;
4457 rxq = (struct hns3_rx_queue *)rx_queue;
4458 if (offset >= rxq->nb_rx_desc)
4461 desc_id = (rxq->next_to_use + offset) % rxq->nb_rx_desc;
4462 rxdp = &rxq->rx_ring[desc_id];
4463 bd_base_info = rte_le_to_cpu_32(rxdp->rx.bd_base_info);
4464 dev = &rte_eth_devices[rxq->port_id];
4465 if (dev->rx_pkt_burst == hns3_recv_pkts ||
4466 dev->rx_pkt_burst == hns3_recv_scattered_pkts) {
4467 if (offset >= rxq->nb_rx_desc - rxq->rx_free_hold)
4468 return RTE_ETH_RX_DESC_UNAVAIL;
4469 } else if (dev->rx_pkt_burst == hns3_recv_pkts_vec ||
4470 dev->rx_pkt_burst == hns3_recv_pkts_vec_sve) {
4471 if (offset >= rxq->nb_rx_desc - rxq->rx_rearm_nb)
4472 return RTE_ETH_RX_DESC_UNAVAIL;
4474 return RTE_ETH_RX_DESC_UNAVAIL;
4477 if (!(bd_base_info & BIT(HNS3_RXD_VLD_B)))
4478 return RTE_ETH_RX_DESC_AVAIL;
4480 return RTE_ETH_RX_DESC_DONE;
4484 hns3_dev_tx_descriptor_status(void *tx_queue, uint16_t offset)
4486 volatile struct hns3_desc *txdp;
4487 struct hns3_tx_queue *txq;
4488 struct rte_eth_dev *dev;
4491 txq = (struct hns3_tx_queue *)tx_queue;
4492 if (offset >= txq->nb_tx_desc)
4495 dev = &rte_eth_devices[txq->port_id];
4496 if (dev->tx_pkt_burst != hns3_xmit_pkts_simple &&
4497 dev->tx_pkt_burst != hns3_xmit_pkts &&
4498 dev->tx_pkt_burst != hns3_xmit_pkts_vec_sve &&
4499 dev->tx_pkt_burst != hns3_xmit_pkts_vec)
4500 return RTE_ETH_TX_DESC_UNAVAIL;
4502 desc_id = (txq->next_to_use + offset) % txq->nb_tx_desc;
4503 txdp = &txq->tx_ring[desc_id];
4504 if (txdp->tx.tp_fe_sc_vld_ra_ri & rte_cpu_to_le_16(BIT(HNS3_TXD_VLD_B)))
4505 return RTE_ETH_TX_DESC_FULL;
4507 return RTE_ETH_TX_DESC_DONE;
4511 hns3_rx_queue_count(struct rte_eth_dev *dev, uint16_t rx_queue_id)
4514 * Number of BDs that have been processed by the driver
4515 * but have not been notified to the hardware.
4517 uint32_t driver_hold_bd_num;
4518 struct hns3_rx_queue *rxq;
4521 rxq = dev->data->rx_queues[rx_queue_id];
4522 fbd_num = hns3_read_dev(rxq, HNS3_RING_RX_FBDNUM_REG);
4523 if (dev->rx_pkt_burst == hns3_recv_pkts_vec ||
4524 dev->rx_pkt_burst == hns3_recv_pkts_vec_sve)
4525 driver_hold_bd_num = rxq->rx_rearm_nb;
4527 driver_hold_bd_num = rxq->rx_free_hold;
4529 if (fbd_num <= driver_hold_bd_num)
4532 return fbd_num - driver_hold_bd_num;
4536 hns3_enable_rxd_adv_layout(struct hns3_hw *hw)
4539 * If the hardware support rxd advanced layout, then driver enable it
4542 if (hns3_dev_rxd_adv_layout_supported(hw))
4543 hns3_write_dev(hw, HNS3_RXD_ADV_LAYOUT_EN_REG, 1);