diff options
Diffstat (limited to 'src/dpdk22/drivers/net/i40e/i40e_rxtx_vec.c')
| -rw-r--r-- | src/dpdk22/drivers/net/i40e/i40e_rxtx_vec.c | 777 |
1 files changed, 0 insertions, 777 deletions
diff --git a/src/dpdk22/drivers/net/i40e/i40e_rxtx_vec.c b/src/dpdk22/drivers/net/i40e/i40e_rxtx_vec.c deleted file mode 100644 index 047aff53..00000000 --- a/src/dpdk22/drivers/net/i40e/i40e_rxtx_vec.c +++ /dev/null @@ -1,777 +0,0 @@ -/*- - * BSD LICENSE - * - * Copyright(c) 2010-2015 Intel Corporation. All rights reserved. - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * - * * Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * * Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in - * the documentation and/or other materials provided with the - * distribution. - * * Neither the name of Intel Corporation nor the names of its - * contributors may be used to endorse or promote products derived - * from this software without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS - * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT - * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR - * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT - * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, - * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT - * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, - * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY - * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT - * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE - * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. - */ - -#include <stdint.h> -#include <rte_ethdev.h> -#include <rte_malloc.h> - -#include "base/i40e_prototype.h" -#include "base/i40e_type.h" -#include "i40e_ethdev.h" -#include "i40e_rxtx.h" - -#include <tmmintrin.h> - -#ifndef __INTEL_COMPILER -#pragma GCC diagnostic ignored "-Wcast-qual" -#endif - -static inline void -i40e_rxq_rearm(struct i40e_rx_queue *rxq) -{ - int i; - uint16_t rx_id; - volatile union i40e_rx_desc *rxdp; - struct i40e_rx_entry *rxep = &rxq->sw_ring[rxq->rxrearm_start]; - struct rte_mbuf *mb0, *mb1; - __m128i hdr_room = _mm_set_epi64x(RTE_PKTMBUF_HEADROOM, - RTE_PKTMBUF_HEADROOM); - __m128i dma_addr0, dma_addr1; - - rxdp = rxq->rx_ring + rxq->rxrearm_start; - - /* Pull 'n' more MBUFs into the software ring */ - if (rte_mempool_get_bulk(rxq->mp, - (void *)rxep, - RTE_I40E_RXQ_REARM_THRESH) < 0) { - if (rxq->rxrearm_nb + RTE_I40E_RXQ_REARM_THRESH >= - rxq->nb_rx_desc) { - dma_addr0 = _mm_setzero_si128(); - for (i = 0; i < RTE_I40E_DESCS_PER_LOOP; i++) { - rxep[i].mbuf = &rxq->fake_mbuf; - _mm_store_si128((__m128i *)&rxdp[i].read, - dma_addr0); - } - } - rte_eth_devices[rxq->port_id].data->rx_mbuf_alloc_failed += - RTE_I40E_RXQ_REARM_THRESH; - return; - } - - /* Initialize the mbufs in vector, process 2 mbufs in one loop */ - for (i = 0; i < RTE_I40E_RXQ_REARM_THRESH; i += 2, rxep += 2) { - __m128i vaddr0, vaddr1; - uintptr_t p0, p1; - - mb0 = rxep[0].mbuf; - mb1 = rxep[1].mbuf; - - /* Flush mbuf with pkt template. - * Data to be rearmed is 6 bytes long. - * Though, RX will overwrite ol_flags that are coming next - * anyway. So overwrite whole 8 bytes with one load: - * 6 bytes of rearm_data plus first 2 bytes of ol_flags. - */ - p0 = (uintptr_t)&mb0->rearm_data; - *(uint64_t *)p0 = rxq->mbuf_initializer; - p1 = (uintptr_t)&mb1->rearm_data; - *(uint64_t *)p1 = rxq->mbuf_initializer; - - /* load buf_addr(lo 64bit) and buf_physaddr(hi 64bit) */ - vaddr0 = _mm_loadu_si128((__m128i *)&mb0->buf_addr); - vaddr1 = _mm_loadu_si128((__m128i *)&mb1->buf_addr); - - /* convert pa to dma_addr hdr/data */ - dma_addr0 = _mm_unpackhi_epi64(vaddr0, vaddr0); - dma_addr1 = _mm_unpackhi_epi64(vaddr1, vaddr1); - - /* add headroom to pa values */ - dma_addr0 = _mm_add_epi64(dma_addr0, hdr_room); - dma_addr1 = _mm_add_epi64(dma_addr1, hdr_room); - - /* flush desc with pa dma_addr */ - _mm_store_si128((__m128i *)&rxdp++->read, dma_addr0); - _mm_store_si128((__m128i *)&rxdp++->read, dma_addr1); - } - - rxq->rxrearm_start += RTE_I40E_RXQ_REARM_THRESH; - if (rxq->rxrearm_start >= rxq->nb_rx_desc) - rxq->rxrearm_start = 0; - - rxq->rxrearm_nb -= RTE_I40E_RXQ_REARM_THRESH; - - rx_id = (uint16_t)((rxq->rxrearm_start == 0) ? - (rxq->nb_rx_desc - 1) : (rxq->rxrearm_start - 1)); - - /* Update the tail pointer on the NIC */ - I40E_PCI_REG_WRITE(rxq->qrx_tail, rx_id); -} - -/* Handling the offload flags (olflags) field takes computation - * time when receiving packets. Therefore we provide a flag to disable - * the processing of the olflags field when they are not needed. This - * gives improved performance, at the cost of losing the offload info - * in the received packet - */ -#ifdef RTE_LIBRTE_I40E_RX_OLFLAGS_ENABLE - -static inline void -desc_to_olflags_v(__m128i descs[4], struct rte_mbuf **rx_pkts) -{ - __m128i vlan0, vlan1, rss; - union { - uint16_t e[4]; - uint64_t dword; - } vol; - - /* mask everything except rss and vlan flags - *bit2 is for vlan tag, bits 13:12 for rss - */ - const __m128i rss_vlan_msk = _mm_set_epi16( - 0x0000, 0x0000, 0x0000, 0x0000, - 0x3004, 0x3004, 0x3004, 0x3004); - - /* map rss and vlan type to rss hash and vlan flag */ - const __m128i vlan_flags = _mm_set_epi8(0, 0, 0, 0, - 0, 0, 0, 0, - 0, 0, 0, PKT_RX_VLAN_PKT, - 0, 0, 0, 0); - - const __m128i rss_flags = _mm_set_epi8(0, 0, 0, 0, - 0, 0, 0, 0, - 0, 0, 0, 0, - PKT_RX_FDIR, 0, PKT_RX_RSS_HASH, 0); - - vlan0 = _mm_unpackhi_epi16(descs[0], descs[1]); - vlan1 = _mm_unpackhi_epi16(descs[2], descs[3]); - vlan0 = _mm_unpacklo_epi32(vlan0, vlan1); - - vlan1 = _mm_and_si128(vlan0, rss_vlan_msk); - vlan0 = _mm_shuffle_epi8(vlan_flags, vlan1); - - rss = _mm_srli_epi16(vlan1, 12); - rss = _mm_shuffle_epi8(rss_flags, rss); - - vlan0 = _mm_or_si128(vlan0, rss); - vol.dword = _mm_cvtsi128_si64(vlan0); - - rx_pkts[0]->ol_flags = vol.e[0]; - rx_pkts[1]->ol_flags = vol.e[1]; - rx_pkts[2]->ol_flags = vol.e[2]; - rx_pkts[3]->ol_flags = vol.e[3]; -} -#else -#define desc_to_olflags_v(desc, rx_pkts) do {} while (0) -#endif - -#define PKTLEN_SHIFT (6) -#define PKTLEN_MASK (0x3FFF) -/* Handling the pkt len field is not aligned with 1byte, so shift is - * needed to let it align - */ -static inline void -desc_pktlen_align(__m128i descs[4]) -{ - __m128i pktlen0, pktlen1, zero; - union { - uint16_t e[4]; - uint64_t dword; - } vol; - - /* mask everything except pktlen field*/ - const __m128i pktlen_msk = _mm_set_epi32(PKTLEN_MASK, PKTLEN_MASK, - PKTLEN_MASK, PKTLEN_MASK); - - pktlen0 = _mm_unpackhi_epi32(descs[0], descs[2]); - pktlen1 = _mm_unpackhi_epi32(descs[1], descs[3]); - pktlen0 = _mm_unpackhi_epi32(pktlen0, pktlen1); - - zero = _mm_xor_si128(pktlen0, pktlen0); - - pktlen0 = _mm_srli_epi32(pktlen0, PKTLEN_SHIFT); - pktlen0 = _mm_and_si128(pktlen0, pktlen_msk); - - pktlen0 = _mm_packs_epi32(pktlen0, zero); - vol.dword = _mm_cvtsi128_si64(pktlen0); - /* let the descriptor byte 15-14 store the pkt len */ - *((uint16_t *)&descs[0]+7) = vol.e[0]; - *((uint16_t *)&descs[1]+7) = vol.e[1]; - *((uint16_t *)&descs[2]+7) = vol.e[2]; - *((uint16_t *)&descs[3]+7) = vol.e[3]; -} - - /* - * Notice: - * - nb_pkts < RTE_I40E_DESCS_PER_LOOP, just return no packet - * - nb_pkts > RTE_I40E_VPMD_RX_BURST, only scan RTE_I40E_VPMD_RX_BURST - * numbers of DD bits - */ -static inline uint16_t -_recv_raw_pkts_vec(struct i40e_rx_queue *rxq, struct rte_mbuf **rx_pkts, - uint16_t nb_pkts, uint8_t *split_packet) -{ - volatile union i40e_rx_desc *rxdp; - struct i40e_rx_entry *sw_ring; - uint16_t nb_pkts_recd; - int pos; - uint64_t var; - __m128i shuf_msk; - - __m128i crc_adjust = _mm_set_epi16( - 0, 0, 0, /* ignore non-length fields */ - -rxq->crc_len, /* sub crc on data_len */ - 0, /* ignore high-16bits of pkt_len */ - -rxq->crc_len, /* sub crc on pkt_len */ - 0, 0 /* ignore pkt_type field */ - ); - __m128i dd_check, eop_check; - - /* nb_pkts shall be less equal than RTE_I40E_MAX_RX_BURST */ - nb_pkts = RTE_MIN(nb_pkts, RTE_I40E_MAX_RX_BURST); - - /* nb_pkts has to be floor-aligned to RTE_I40E_DESCS_PER_LOOP */ - nb_pkts = RTE_ALIGN_FLOOR(nb_pkts, RTE_I40E_DESCS_PER_LOOP); - - /* Just the act of getting into the function from the application is - * going to cost about 7 cycles - */ - rxdp = rxq->rx_ring + rxq->rx_tail; - - _mm_prefetch((const void *)rxdp, _MM_HINT_T0); - - /* See if we need to rearm the RX queue - gives the prefetch a bit - * of time to act - */ - if (rxq->rxrearm_nb > RTE_I40E_RXQ_REARM_THRESH) - i40e_rxq_rearm(rxq); - - /* Before we start moving massive data around, check to see if - * there is actually a packet available - */ - if (!(rxdp->wb.qword1.status_error_len & - rte_cpu_to_le_32(1 << I40E_RX_DESC_STATUS_DD_SHIFT))) - return 0; - - /* 4 packets DD mask */ - dd_check = _mm_set_epi64x(0x0000000100000001LL, 0x0000000100000001LL); - - /* 4 packets EOP mask */ - eop_check = _mm_set_epi64x(0x0000000200000002LL, 0x0000000200000002LL); - - /* mask to shuffle from desc. to mbuf */ - shuf_msk = _mm_set_epi8( - 7, 6, 5, 4, /* octet 4~7, 32bits rss */ - 3, 2, /* octet 2~3, low 16 bits vlan_macip */ - 15, 14, /* octet 15~14, 16 bits data_len */ - 0xFF, 0xFF, /* skip high 16 bits pkt_len, zero out */ - 15, 14, /* octet 15~14, low 16 bits pkt_len */ - 0xFF, 0xFF, /* pkt_type set as unknown */ - 0xFF, 0xFF /*pkt_type set as unknown */ - ); - - /* Cache is empty -> need to scan the buffer rings, but first move - * the next 'n' mbufs into the cache - */ - sw_ring = &rxq->sw_ring[rxq->rx_tail]; - - /* A. load 4 packet in one loop - * [A*. mask out 4 unused dirty field in desc] - * B. copy 4 mbuf point from swring to rx_pkts - * C. calc the number of DD bits among the 4 packets - * [C*. extract the end-of-packet bit, if requested] - * D. fill info. from desc to mbuf - */ - - for (pos = 0, nb_pkts_recd = 0; pos < RTE_I40E_VPMD_RX_BURST; - pos += RTE_I40E_DESCS_PER_LOOP, - rxdp += RTE_I40E_DESCS_PER_LOOP) { - __m128i descs[RTE_I40E_DESCS_PER_LOOP]; - __m128i pkt_mb1, pkt_mb2, pkt_mb3, pkt_mb4; - __m128i zero, staterr, sterr_tmp1, sterr_tmp2; - __m128i mbp1, mbp2; /* two mbuf pointer in one XMM reg. */ - - /* B.1 load 1 mbuf point */ - mbp1 = _mm_loadu_si128((__m128i *)&sw_ring[pos]); - /* Read desc statuses backwards to avoid race condition */ - /* A.1 load 4 pkts desc */ - descs[3] = _mm_loadu_si128((__m128i *)(rxdp + 3)); - - /* B.2 copy 2 mbuf point into rx_pkts */ - _mm_storeu_si128((__m128i *)&rx_pkts[pos], mbp1); - - /* B.1 load 1 mbuf point */ - mbp2 = _mm_loadu_si128((__m128i *)&sw_ring[pos+2]); - - descs[2] = _mm_loadu_si128((__m128i *)(rxdp + 2)); - /* B.1 load 2 mbuf point */ - descs[1] = _mm_loadu_si128((__m128i *)(rxdp + 1)); - descs[0] = _mm_loadu_si128((__m128i *)(rxdp)); - - /* B.2 copy 2 mbuf point into rx_pkts */ - _mm_storeu_si128((__m128i *)&rx_pkts[pos+2], mbp2); - - if (split_packet) { - rte_prefetch0(&rx_pkts[pos]->cacheline1); - rte_prefetch0(&rx_pkts[pos + 1]->cacheline1); - rte_prefetch0(&rx_pkts[pos + 2]->cacheline1); - rte_prefetch0(&rx_pkts[pos + 3]->cacheline1); - } - - /*shift the pktlen field*/ - desc_pktlen_align(descs); - - /* avoid compiler reorder optimization */ - rte_compiler_barrier(); - - /* D.1 pkt 3,4 convert format from desc to pktmbuf */ - pkt_mb4 = _mm_shuffle_epi8(descs[3], shuf_msk); - pkt_mb3 = _mm_shuffle_epi8(descs[2], shuf_msk); - - /* C.1 4=>2 filter staterr info only */ - sterr_tmp2 = _mm_unpackhi_epi32(descs[3], descs[2]); - /* C.1 4=>2 filter staterr info only */ - sterr_tmp1 = _mm_unpackhi_epi32(descs[1], descs[0]); - - desc_to_olflags_v(descs, &rx_pkts[pos]); - - /* D.2 pkt 3,4 set in_port/nb_seg and remove crc */ - pkt_mb4 = _mm_add_epi16(pkt_mb4, crc_adjust); - pkt_mb3 = _mm_add_epi16(pkt_mb3, crc_adjust); - - /* D.1 pkt 1,2 convert format from desc to pktmbuf */ - pkt_mb2 = _mm_shuffle_epi8(descs[1], shuf_msk); - pkt_mb1 = _mm_shuffle_epi8(descs[0], shuf_msk); - - /* C.2 get 4 pkts staterr value */ - zero = _mm_xor_si128(dd_check, dd_check); - staterr = _mm_unpacklo_epi32(sterr_tmp1, sterr_tmp2); - - /* D.3 copy final 3,4 data to rx_pkts */ - _mm_storeu_si128((void *)&rx_pkts[pos+3]->rx_descriptor_fields1, - pkt_mb4); - _mm_storeu_si128((void *)&rx_pkts[pos+2]->rx_descriptor_fields1, - pkt_mb3); - - /* D.2 pkt 1,2 set in_port/nb_seg and remove crc */ - pkt_mb2 = _mm_add_epi16(pkt_mb2, crc_adjust); - pkt_mb1 = _mm_add_epi16(pkt_mb1, crc_adjust); - - /* C* extract and record EOP bit */ - if (split_packet) { - __m128i eop_shuf_mask = _mm_set_epi8( - 0xFF, 0xFF, 0xFF, 0xFF, - 0xFF, 0xFF, 0xFF, 0xFF, - 0xFF, 0xFF, 0xFF, 0xFF, - 0x04, 0x0C, 0x00, 0x08 - ); - - /* and with mask to extract bits, flipping 1-0 */ - __m128i eop_bits = _mm_andnot_si128(staterr, eop_check); - /* the staterr values are not in order, as the count - * count of dd bits doesn't care. However, for end of - * packet tracking, we do care, so shuffle. This also - * compresses the 32-bit values to 8-bit - */ - eop_bits = _mm_shuffle_epi8(eop_bits, eop_shuf_mask); - /* store the resulting 32-bit value */ - *(int *)split_packet = _mm_cvtsi128_si32(eop_bits); - split_packet += RTE_I40E_DESCS_PER_LOOP; - - /* zero-out next pointers */ - rx_pkts[pos]->next = NULL; - rx_pkts[pos + 1]->next = NULL; - rx_pkts[pos + 2]->next = NULL; - rx_pkts[pos + 3]->next = NULL; - } - - /* C.3 calc available number of desc */ - staterr = _mm_and_si128(staterr, dd_check); - staterr = _mm_packs_epi32(staterr, zero); - - /* D.3 copy final 1,2 data to rx_pkts */ - _mm_storeu_si128((void *)&rx_pkts[pos+1]->rx_descriptor_fields1, - pkt_mb2); - _mm_storeu_si128((void *)&rx_pkts[pos]->rx_descriptor_fields1, - pkt_mb1); - /* C.4 calc avaialbe number of desc */ - var = __builtin_popcountll(_mm_cvtsi128_si64(staterr)); - nb_pkts_recd += var; - if (likely(var != RTE_I40E_DESCS_PER_LOOP)) - break; - } - - /* Update our internal tail pointer */ - rxq->rx_tail = (uint16_t)(rxq->rx_tail + nb_pkts_recd); - rxq->rx_tail = (uint16_t)(rxq->rx_tail & (rxq->nb_rx_desc - 1)); - rxq->rxrearm_nb = (uint16_t)(rxq->rxrearm_nb + nb_pkts_recd); - - return nb_pkts_recd; -} - - /* - * Notice: - * - nb_pkts < RTE_I40E_DESCS_PER_LOOP, just return no packet - * - nb_pkts > RTE_I40E_VPMD_RX_BURST, only scan RTE_I40E_VPMD_RX_BURST - * numbers of DD bits - */ -uint16_t -i40e_recv_pkts_vec(void *rx_queue, struct rte_mbuf **rx_pkts, - uint16_t nb_pkts) -{ - return _recv_raw_pkts_vec(rx_queue, rx_pkts, nb_pkts, NULL); -} - -static inline uint16_t -reassemble_packets(struct i40e_rx_queue *rxq, struct rte_mbuf **rx_bufs, - uint16_t nb_bufs, uint8_t *split_flags) -{ - struct rte_mbuf *pkts[RTE_I40E_VPMD_RX_BURST]; /*finished pkts*/ - struct rte_mbuf *start = rxq->pkt_first_seg; - struct rte_mbuf *end = rxq->pkt_last_seg; - unsigned pkt_idx, buf_idx; - - for (buf_idx = 0, pkt_idx = 0; buf_idx < nb_bufs; buf_idx++) { - if (end != NULL) { - /* processing a split packet */ - end->next = rx_bufs[buf_idx]; - rx_bufs[buf_idx]->data_len += rxq->crc_len; - - start->nb_segs++; - start->pkt_len += rx_bufs[buf_idx]->data_len; - end = end->next; - - if (!split_flags[buf_idx]) { - /* it's the last packet of the set */ - start->hash = end->hash; - start->ol_flags = end->ol_flags; - /* we need to strip crc for the whole packet */ - start->pkt_len -= rxq->crc_len; - if (end->data_len > rxq->crc_len) { - end->data_len -= rxq->crc_len; - } else { - /* free up last mbuf */ - struct rte_mbuf *secondlast = start; - - while (secondlast->next != end) - secondlast = secondlast->next; - secondlast->data_len -= (rxq->crc_len - - end->data_len); - secondlast->next = NULL; - rte_pktmbuf_free_seg(end); - end = secondlast; - } - pkts[pkt_idx++] = start; - start = end = NULL; - } - } else { - /* not processing a split packet */ - if (!split_flags[buf_idx]) { - /* not a split packet, save and skip */ - pkts[pkt_idx++] = rx_bufs[buf_idx]; - continue; - } - end = start = rx_bufs[buf_idx]; - rx_bufs[buf_idx]->data_len += rxq->crc_len; - rx_bufs[buf_idx]->pkt_len += rxq->crc_len; - } - } - - /* save the partial packet for next time */ - rxq->pkt_first_seg = start; - rxq->pkt_last_seg = end; - memcpy(rx_bufs, pkts, pkt_idx * (sizeof(*pkts))); - return pkt_idx; -} - - /* vPMD receive routine that reassembles scattered packets - * Notice: - * - nb_pkts < RTE_I40E_DESCS_PER_LOOP, just return no packet - * - nb_pkts > RTE_I40E_VPMD_RX_BURST, only scan RTE_I40E_VPMD_RX_BURST - * numbers of DD bits - */ -uint16_t -i40e_recv_scattered_pkts_vec(void *rx_queue, struct rte_mbuf **rx_pkts, - uint16_t nb_pkts) -{ - - struct i40e_rx_queue *rxq = rx_queue; - uint8_t split_flags[RTE_I40E_VPMD_RX_BURST] = {0}; - - /* get some new buffers */ - uint16_t nb_bufs = _recv_raw_pkts_vec(rxq, rx_pkts, nb_pkts, - split_flags); - if (nb_bufs == 0) - return 0; - - /* happy day case, full burst + no packets to be joined */ - const uint64_t *split_fl64 = (uint64_t *)split_flags; - - if (rxq->pkt_first_seg == NULL && - split_fl64[0] == 0 && split_fl64[1] == 0 && - split_fl64[2] == 0 && split_fl64[3] == 0) - return nb_bufs; - - /* reassemble any packets that need reassembly*/ - unsigned i = 0; - - if (rxq->pkt_first_seg == NULL) { - /* find the first split flag, and only reassemble then*/ - while (i < nb_bufs && !split_flags[i]) - i++; - if (i == nb_bufs) - return nb_bufs; - } - return i + reassemble_packets(rxq, &rx_pkts[i], nb_bufs - i, - &split_flags[i]); -} - -static inline void -vtx1(volatile struct i40e_tx_desc *txdp, - struct rte_mbuf *pkt, uint64_t flags) -{ - uint64_t high_qw = (I40E_TX_DESC_DTYPE_DATA | - ((uint64_t)flags << I40E_TXD_QW1_CMD_SHIFT) | - ((uint64_t)pkt->data_len << I40E_TXD_QW1_TX_BUF_SZ_SHIFT)); - - __m128i descriptor = _mm_set_epi64x(high_qw, - pkt->buf_physaddr + pkt->data_off); - _mm_store_si128((__m128i *)txdp, descriptor); -} - -static inline void -vtx(volatile struct i40e_tx_desc *txdp, - struct rte_mbuf **pkt, uint16_t nb_pkts, uint64_t flags) -{ - int i; - - for (i = 0; i < nb_pkts; ++i, ++txdp, ++pkt) - vtx1(txdp, *pkt, flags); -} - -static inline int __attribute__((always_inline)) -i40e_tx_free_bufs(struct i40e_tx_queue *txq) -{ - struct i40e_tx_entry *txep; - uint32_t n; - uint32_t i; - int nb_free = 0; - struct rte_mbuf *m, *free[RTE_I40E_TX_MAX_FREE_BUF_SZ]; - - /* check DD bits on threshold descriptor */ - if ((txq->tx_ring[txq->tx_next_dd].cmd_type_offset_bsz & - rte_cpu_to_le_64(I40E_TXD_QW1_DTYPE_MASK)) != - rte_cpu_to_le_64(I40E_TX_DESC_DTYPE_DESC_DONE)) - return 0; - - n = txq->tx_rs_thresh; - - /* first buffer to free from S/W ring is at index - * tx_next_dd - (tx_rs_thresh-1) - */ - txep = &txq->sw_ring[txq->tx_next_dd - (n - 1)]; - m = __rte_pktmbuf_prefree_seg(txep[0].mbuf); - if (likely(m != NULL)) { - free[0] = m; - nb_free = 1; - for (i = 1; i < n; i++) { - m = __rte_pktmbuf_prefree_seg(txep[i].mbuf); - if (likely(m != NULL)) { - if (likely(m->pool == free[0]->pool)) { - free[nb_free++] = m; - } else { - rte_mempool_put_bulk(free[0]->pool, - (void *)free, - nb_free); - free[0] = m; - nb_free = 1; - } - } - } - rte_mempool_put_bulk(free[0]->pool, (void **)free, nb_free); - } else { - for (i = 1; i < n; i++) { - m = __rte_pktmbuf_prefree_seg(txep[i].mbuf); - if (m != NULL) - rte_mempool_put(m->pool, m); - } - } - - /* buffers were freed, update counters */ - txq->nb_tx_free = (uint16_t)(txq->nb_tx_free + txq->tx_rs_thresh); - txq->tx_next_dd = (uint16_t)(txq->tx_next_dd + txq->tx_rs_thresh); - if (txq->tx_next_dd >= txq->nb_tx_desc) - txq->tx_next_dd = (uint16_t)(txq->tx_rs_thresh - 1); - - return txq->tx_rs_thresh; -} - -static inline void __attribute__((always_inline)) -tx_backlog_entry(struct i40e_tx_entry *txep, - struct rte_mbuf **tx_pkts, uint16_t nb_pkts) -{ - int i; - - for (i = 0; i < (int)nb_pkts; ++i) - txep[i].mbuf = tx_pkts[i]; -} - -uint16_t -i40e_xmit_pkts_vec(void *tx_queue, struct rte_mbuf **tx_pkts, - uint16_t nb_pkts) -{ - struct i40e_tx_queue *txq = (struct i40e_tx_queue *)tx_queue; - volatile struct i40e_tx_desc *txdp; - struct i40e_tx_entry *txep; - uint16_t n, nb_commit, tx_id; - uint64_t flags = I40E_TD_CMD; - uint64_t rs = I40E_TX_DESC_CMD_RS | I40E_TD_CMD; - int i; - - /* cross rx_thresh boundary is not allowed */ - nb_pkts = RTE_MIN(nb_pkts, txq->tx_rs_thresh); - - if (txq->nb_tx_free < txq->tx_free_thresh) - i40e_tx_free_bufs(txq); - - nb_commit = nb_pkts = (uint16_t)RTE_MIN(txq->nb_tx_free, nb_pkts); - if (unlikely(nb_pkts == 0)) - return 0; - - tx_id = txq->tx_tail; - txdp = &txq->tx_ring[tx_id]; - txep = &txq->sw_ring[tx_id]; - - txq->nb_tx_free = (uint16_t)(txq->nb_tx_free - nb_pkts); - - n = (uint16_t)(txq->nb_tx_desc - tx_id); - if (nb_commit >= n) { - tx_backlog_entry(txep, tx_pkts, n); - - for (i = 0; i < n - 1; ++i, ++tx_pkts, ++txdp) - vtx1(txdp, *tx_pkts, flags); - - vtx1(txdp, *tx_pkts++, rs); - - nb_commit = (uint16_t)(nb_commit - n); - - tx_id = 0; - txq->tx_next_rs = (uint16_t)(txq->tx_rs_thresh - 1); - - /* avoid reach the end of ring */ - txdp = &txq->tx_ring[tx_id]; - txep = &txq->sw_ring[tx_id]; - } - - tx_backlog_entry(txep, tx_pkts, nb_commit); - - vtx(txdp, tx_pkts, nb_commit, flags); - - tx_id = (uint16_t)(tx_id + nb_commit); - if (tx_id > txq->tx_next_rs) { - txq->tx_ring[txq->tx_next_rs].cmd_type_offset_bsz |= - rte_cpu_to_le_64(((uint64_t)I40E_TX_DESC_CMD_RS) << - I40E_TXD_QW1_CMD_SHIFT); - txq->tx_next_rs = - (uint16_t)(txq->tx_next_rs + txq->tx_rs_thresh); - } - - txq->tx_tail = tx_id; - - I40E_PCI_REG_WRITE(txq->qtx_tail, txq->tx_tail); - - return nb_pkts; -} - -void __attribute__((cold)) -i40e_rx_queue_release_mbufs_vec(struct i40e_rx_queue *rxq) -{ - const unsigned mask = rxq->nb_rx_desc - 1; - unsigned i; - - if (rxq->sw_ring == NULL || rxq->rxrearm_nb >= rxq->nb_rx_desc) - return; - - /* free all mbufs that are valid in the ring */ - for (i = rxq->rx_tail; i != rxq->rxrearm_start; i = (i + 1) & mask) - rte_pktmbuf_free_seg(rxq->sw_ring[i].mbuf); - rxq->rxrearm_nb = rxq->nb_rx_desc; - - /* set all entries to NULL */ - memset(rxq->sw_ring, 0, sizeof(rxq->sw_ring[0]) * rxq->nb_rx_desc); -} - -int __attribute__((cold)) -i40e_rxq_vec_setup(struct i40e_rx_queue *rxq) -{ - uintptr_t p; - struct rte_mbuf mb_def = { .buf_addr = 0 }; /* zeroed mbuf */ - - mb_def.nb_segs = 1; - mb_def.data_off = RTE_PKTMBUF_HEADROOM; - mb_def.port = rxq->port_id; - rte_mbuf_refcnt_set(&mb_def, 1); - - /* prevent compiler reordering: rearm_data covers previous fields */ - rte_compiler_barrier(); - p = (uintptr_t)&mb_def.rearm_data; - rxq->mbuf_initializer = *(uint64_t *)p; - return 0; -} - -int __attribute__((cold)) -i40e_txq_vec_setup(struct i40e_tx_queue __rte_unused *txq) -{ - return 0; -} - -int __attribute__((cold)) -i40e_rx_vec_dev_conf_condition_check(struct rte_eth_dev *dev) -{ -#ifndef RTE_LIBRTE_IEEE1588 - struct rte_eth_rxmode *rxmode = &dev->data->dev_conf.rxmode; - struct rte_fdir_conf *fconf = &dev->data->dev_conf.fdir_conf; - -#ifndef RTE_LIBRTE_I40E_RX_OLFLAGS_ENABLE - /* whithout rx ol_flags, no VP flag report */ - if (rxmode->hw_vlan_strip != 0 || - rxmode->hw_vlan_extend != 0) - return -1; -#endif - - /* no fdir support */ - if (fconf->mode != RTE_FDIR_MODE_NONE) - return -1; - - /* - no csum error report support - * - no header split support - */ - if (rxmode->hw_ip_checksum == 1 || - rxmode->header_split == 1) - return -1; - - return 0; -#else - RTE_SET_USED(dev); - return -1; -#endif -} |