/* SPDX-License-Identifier: BSD-3-Clause
- * Copyright(c) 2020 Hisilicon Limited.
+ * Copyright(c) 2020-2021 HiSilicon Limited.
*/
#ifndef _HNS3_RXTX_VEC_NEON_H_
nb_commit = RTE_MIN(txq->tx_bd_ready, nb_pkts);
if (unlikely(nb_commit == 0)) {
- txq->queue_full_cnt++;
+ txq->dfx_stats.queue_full_cnt++;
return 0;
}
nb_tx = nb_commit;
for (i = 0; i < n; i++, tx_pkts++, tx_desc++) {
hns3_vec_tx(tx_desc, *tx_pkts);
tx_entry[i].mbuf = *tx_pkts;
+
+ /* Increment bytes counter */
+ txq->basic_stats.bytes += (*tx_pkts)->pkt_len;
}
nb_commit -= n;
for (i = 0; i < nb_commit; i++, tx_pkts++, tx_desc++) {
hns3_vec_tx(tx_desc, *tx_pkts);
tx_entry[i].mbuf = *tx_pkts;
+
+ /* Increment bytes counter */
+ txq->basic_stats.bytes += (*tx_pkts)->pkt_len;
}
next_to_use += nb_commit;
return nb_tx;
}
+
+static inline uint32_t
+hns3_desc_parse_field(struct hns3_rx_queue *rxq,
+ struct hns3_entry *sw_ring,
+ struct hns3_desc *rxdp,
+ uint32_t bd_vld_num)
+{
+ uint32_t l234_info, ol_info, bd_base_info;
+ struct rte_mbuf *pkt;
+ uint32_t retcode = 0;
+ uint32_t i;
+ int ret;
+
+ for (i = 0; i < bd_vld_num; i++) {
+ pkt = sw_ring[i].mbuf;
+
+ /* init rte_mbuf.rearm_data last 64-bit */
+ pkt->ol_flags = PKT_RX_RSS_HASH;
+
+ l234_info = rxdp[i].rx.l234_info;
+ ol_info = rxdp[i].rx.ol_info;
+ bd_base_info = rxdp[i].rx.bd_base_info;
+ ret = hns3_handle_bdinfo(rxq, pkt, bd_base_info, l234_info);
+ if (unlikely(ret)) {
+ retcode |= 1u << i;
+ continue;
+ }
+
+ pkt->packet_type = hns3_rx_calc_ptype(rxq, l234_info, ol_info);
+
+ /* Increment bytes counter */
+ rxq->basic_stats.bytes += pkt->pkt_len;
+ }
+
+ return retcode;
+}
+
+static inline uint16_t
+hns3_recv_burst_vec(struct hns3_rx_queue *__restrict rxq,
+ struct rte_mbuf **__restrict rx_pkts,
+ uint16_t nb_pkts,
+ uint64_t *bd_err_mask)
+{
+ uint16_t rx_id = rxq->next_to_use;
+ struct hns3_entry *sw_ring = &rxq->sw_ring[rx_id];
+ struct hns3_desc *rxdp = &rxq->rx_ring[rx_id];
+ uint32_t bd_valid_num, parse_retcode;
+ uint16_t nb_rx = 0;
+ uint32_t pos;
+ int offset;
+
+ /* mask to shuffle from desc to mbuf's rx_descriptor_fields1 */
+ uint8x16_t shuf_desc_fields_msk = {
+ 0xff, 0xff, 0xff, 0xff, /* packet type init zero */
+ 22, 23, 0xff, 0xff, /* rx.pkt_len to rte_mbuf.pkt_len */
+ 20, 21, /* size to rte_mbuf.data_len */
+ 0xff, 0xff, /* rte_mbuf.vlan_tci init zero */
+ 8, 9, 10, 11, /* rx.rss_hash to rte_mbuf.hash.rss */
+ };
+
+ uint16x8_t crc_adjust = {
+ 0, 0, /* ignore pkt_type field */
+ rxq->crc_len, /* sub crc on pkt_len */
+ 0, /* ignore high-16bits of pkt_len */
+ rxq->crc_len, /* sub crc on data_len */
+ 0, 0, 0, /* ignore non-length fields */
+ };
+
+ /* compile-time verifies the shuffle mask */
+ RTE_BUILD_BUG_ON(offsetof(struct rte_mbuf, pkt_len) !=
+ offsetof(struct rte_mbuf, rx_descriptor_fields1) + 4);
+ RTE_BUILD_BUG_ON(offsetof(struct rte_mbuf, data_len) !=
+ offsetof(struct rte_mbuf, rx_descriptor_fields1) + 8);
+ RTE_BUILD_BUG_ON(offsetof(struct rte_mbuf, hash.rss) !=
+ offsetof(struct rte_mbuf, rx_descriptor_fields1) + 12);
+
+ for (pos = 0; pos < nb_pkts; pos += HNS3_DEFAULT_DESCS_PER_LOOP,
+ rxdp += HNS3_DEFAULT_DESCS_PER_LOOP) {
+ uint64x2x2_t descs[HNS3_DEFAULT_DESCS_PER_LOOP];
+ uint8x16x2_t pkt_mbuf1, pkt_mbuf2, pkt_mbuf3, pkt_mbuf4;
+ uint8x16_t pkt_mb1, pkt_mb2, pkt_mb3, pkt_mb4;
+ uint64x2_t mbp1, mbp2;
+ uint16x4_t bd_vld = {0};
+ uint16x8_t tmp;
+ uint64_t stat;
+
+ /* calc how many bd valid */
+ bd_vld = vset_lane_u16(rxdp[0].rx.bdtype_vld_udp0, bd_vld, 0);
+ bd_vld = vset_lane_u16(rxdp[1].rx.bdtype_vld_udp0, bd_vld, 1);
+ bd_vld = vset_lane_u16(rxdp[2].rx.bdtype_vld_udp0, bd_vld, 2);
+ bd_vld = vset_lane_u16(rxdp[3].rx.bdtype_vld_udp0, bd_vld, 3);
+
+ /* load 2 mbuf pointer */
+ mbp1 = vld1q_u64((uint64_t *)&sw_ring[pos]);
+
+ bd_vld = vshl_n_u16(bd_vld,
+ HNS3_UINT16_BIT - 1 - HNS3_RXD_VLD_B);
+ bd_vld = vreinterpret_u16_s16(
+ vshr_n_s16(vreinterpret_s16_u16(bd_vld),
+ HNS3_UINT16_BIT - 1));
+ stat = ~vget_lane_u64(vreinterpret_u64_u16(bd_vld), 0);
+
+ /* load 2 mbuf pointer again */
+ mbp2 = vld1q_u64((uint64_t *)&sw_ring[pos + 2]);
+
+ if (likely(stat == 0))
+ bd_valid_num = HNS3_DEFAULT_DESCS_PER_LOOP;
+ else
+ bd_valid_num = __builtin_ctzl(stat) / HNS3_UINT16_BIT;
+ if (bd_valid_num == 0)
+ break;
+
+ /* use offset to control below data load oper ordering */
+ offset = rxq->offset_table[bd_valid_num];
+
+ /* store 2 mbuf pointer into rx_pkts */
+ vst1q_u64((uint64_t *)&rx_pkts[pos], mbp1);
+
+ /* read first two descs */
+ descs[0] = vld2q_u64((uint64_t *)(rxdp + offset));
+ descs[1] = vld2q_u64((uint64_t *)(rxdp + offset + 1));
+
+ /* store 2 mbuf pointer into rx_pkts again */
+ vst1q_u64((uint64_t *)&rx_pkts[pos + 2], mbp2);
+
+ /* read remains two descs */
+ descs[2] = vld2q_u64((uint64_t *)(rxdp + offset + 2));
+ descs[3] = vld2q_u64((uint64_t *)(rxdp + offset + 3));
+
+ pkt_mbuf1.val[0] = vreinterpretq_u8_u64(descs[0].val[0]);
+ pkt_mbuf1.val[1] = vreinterpretq_u8_u64(descs[0].val[1]);
+ pkt_mbuf2.val[0] = vreinterpretq_u8_u64(descs[1].val[0]);
+ pkt_mbuf2.val[1] = vreinterpretq_u8_u64(descs[1].val[1]);
+
+ /* pkt 1,2 convert format from desc to pktmbuf */
+ pkt_mb1 = vqtbl2q_u8(pkt_mbuf1, shuf_desc_fields_msk);
+ pkt_mb2 = vqtbl2q_u8(pkt_mbuf2, shuf_desc_fields_msk);
+
+ /* store the first 8 bytes of pkt 1,2 mbuf's rearm_data */
+ *(uint64_t *)&sw_ring[pos + 0].mbuf->rearm_data =
+ rxq->mbuf_initializer;
+ *(uint64_t *)&sw_ring[pos + 1].mbuf->rearm_data =
+ rxq->mbuf_initializer;
+
+ /* pkt 1,2 remove crc */
+ tmp = vsubq_u16(vreinterpretq_u16_u8(pkt_mb1), crc_adjust);
+ pkt_mb1 = vreinterpretq_u8_u16(tmp);
+ tmp = vsubq_u16(vreinterpretq_u16_u8(pkt_mb2), crc_adjust);
+ pkt_mb2 = vreinterpretq_u8_u16(tmp);
+
+ pkt_mbuf3.val[0] = vreinterpretq_u8_u64(descs[2].val[0]);
+ pkt_mbuf3.val[1] = vreinterpretq_u8_u64(descs[2].val[1]);
+ pkt_mbuf4.val[0] = vreinterpretq_u8_u64(descs[3].val[0]);
+ pkt_mbuf4.val[1] = vreinterpretq_u8_u64(descs[3].val[1]);
+
+ /* pkt 3,4 convert format from desc to pktmbuf */
+ pkt_mb3 = vqtbl2q_u8(pkt_mbuf3, shuf_desc_fields_msk);
+ pkt_mb4 = vqtbl2q_u8(pkt_mbuf4, shuf_desc_fields_msk);
+
+ /* pkt 1,2 save to rx_pkts mbuf */
+ vst1q_u8((void *)&sw_ring[pos + 0].mbuf->rx_descriptor_fields1,
+ pkt_mb1);
+ vst1q_u8((void *)&sw_ring[pos + 1].mbuf->rx_descriptor_fields1,
+ pkt_mb2);
+
+ /* pkt 3,4 remove crc */
+ tmp = vsubq_u16(vreinterpretq_u16_u8(pkt_mb3), crc_adjust);
+ pkt_mb3 = vreinterpretq_u8_u16(tmp);
+ tmp = vsubq_u16(vreinterpretq_u16_u8(pkt_mb4), crc_adjust);
+ pkt_mb4 = vreinterpretq_u8_u16(tmp);
+
+ /* store the first 8 bytes of pkt 3,4 mbuf's rearm_data */
+ *(uint64_t *)&sw_ring[pos + 2].mbuf->rearm_data =
+ rxq->mbuf_initializer;
+ *(uint64_t *)&sw_ring[pos + 3].mbuf->rearm_data =
+ rxq->mbuf_initializer;
+
+ /* pkt 3,4 save to rx_pkts mbuf */
+ vst1q_u8((void *)&sw_ring[pos + 2].mbuf->rx_descriptor_fields1,
+ pkt_mb3);
+ vst1q_u8((void *)&sw_ring[pos + 3].mbuf->rx_descriptor_fields1,
+ pkt_mb4);
+
+ rte_prefetch_non_temporal(rxdp + HNS3_DEFAULT_DESCS_PER_LOOP);
+
+ parse_retcode = hns3_desc_parse_field(rxq, &sw_ring[pos],
+ &rxdp[offset], bd_valid_num);
+ if (unlikely(parse_retcode))
+ (*bd_err_mask) |= ((uint64_t)parse_retcode) << pos;
+
+ rte_prefetch0(sw_ring[pos +
+ HNS3_DEFAULT_DESCS_PER_LOOP + 0].mbuf);
+ rte_prefetch0(sw_ring[pos +
+ HNS3_DEFAULT_DESCS_PER_LOOP + 1].mbuf);
+ rte_prefetch0(sw_ring[pos +
+ HNS3_DEFAULT_DESCS_PER_LOOP + 2].mbuf);
+ rte_prefetch0(sw_ring[pos +
+ HNS3_DEFAULT_DESCS_PER_LOOP + 3].mbuf);
+
+ nb_rx += bd_valid_num;
+ if (bd_valid_num < HNS3_DEFAULT_DESCS_PER_LOOP)
+ break;
+ }
+
+ rxq->rx_rearm_nb += nb_rx;
+ rxq->next_to_use += nb_rx;
+ if (rxq->next_to_use >= rxq->nb_rx_desc)
+ rxq->next_to_use = 0;
+
+ return nb_rx;
+}
#endif /* _HNS3_RXTX_VEC_NEON_H_ */
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