3983583414
Add bnxt vector PMD support using NEON SIMD instructions. Also update the 20.08 release notes with this information. Signed-off-by: Lance Richardson <lance.richardson@broadcom.com> Reviewed-by: Ajit Khaparde <ajit.khaparde@broadcom.com> Reviewed-by: Ruifeng Wang <ruifeng.wang@arm.com>
58 lines
1.4 KiB
C
58 lines
1.4 KiB
C
/* SPDX-License-Identifier: BSD-3-Clause
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* Copyright(c) 2020 Broadcom
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* All rights reserved.
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*/
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#ifndef _BNXT_RXTX_VEC_COMMON_H_
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#define _BNXT_RXTX_VEC_COMMON_H_
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#define RTE_BNXT_MAX_RX_BURST 32
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#define RTE_BNXT_MAX_TX_BURST 32
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#define RTE_BNXT_RXQ_REARM_THRESH 32
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#define RTE_BNXT_DESCS_PER_LOOP 4
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#define TX_BD_FLAGS_CMPL ((1 << TX_BD_LONG_FLAGS_BD_CNT_SFT) | \
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TX_BD_SHORT_FLAGS_COAL_NOW | \
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TX_BD_SHORT_TYPE_TX_BD_SHORT | \
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TX_BD_LONG_FLAGS_PACKET_END)
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#define TX_BD_FLAGS_NOCMPL (TX_BD_FLAGS_CMPL | TX_BD_LONG_FLAGS_NO_CMPL)
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static inline uint32_t
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bnxt_xmit_flags_len(uint16_t len, uint16_t flags)
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{
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switch (len >> 9) {
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case 0:
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return flags | TX_BD_LONG_FLAGS_LHINT_LT512;
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case 1:
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return flags | TX_BD_LONG_FLAGS_LHINT_LT1K;
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case 2:
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return flags | TX_BD_LONG_FLAGS_LHINT_LT2K;
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case 3:
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return flags | TX_BD_LONG_FLAGS_LHINT_LT2K;
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default:
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return flags | TX_BD_LONG_FLAGS_LHINT_GTE2K;
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}
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}
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static inline int
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bnxt_rxq_vec_setup_common(struct bnxt_rx_queue *rxq)
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{
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uintptr_t p;
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struct rte_mbuf mb_def = { .buf_addr = 0 }; /* zeroed mbuf */
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mb_def.nb_segs = 1;
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mb_def.data_off = RTE_PKTMBUF_HEADROOM;
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mb_def.port = rxq->port_id;
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rte_mbuf_refcnt_set(&mb_def, 1);
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/* prevent compiler reordering: rearm_data covers previous fields */
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rte_compiler_barrier();
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p = (uintptr_t)&mb_def.rearm_data;
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rxq->mbuf_initializer = *(uint64_t *)p;
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rxq->rxrearm_nb = 0;
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rxq->rxrearm_start = 0;
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return 0;
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}
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#endif /* _BNXT_RXTX_VEC_COMMON_H_ */
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