X-Git-Url: http://git.droids-corp.org/?a=blobdiff_plain;f=drivers%2Fnet%2Ffm10k%2Ffm10k_rxtx_vec.c;h=d76dfd16fd114b0069350ca3b105cbc80ac106c3;hb=5b2b9236aacc5d4fcc4e950177ce5f4d32780c46;hp=06beca928bf7d16872778af686e363421033ee70;hpb=fb9066e479a6e21d851c66c20ec530c0b180247b;p=dpdk.git diff --git a/drivers/net/fm10k/fm10k_rxtx_vec.c b/drivers/net/fm10k/fm10k_rxtx_vec.c index 06beca928b..d76dfd16fd 100644 --- a/drivers/net/fm10k/fm10k_rxtx_vec.c +++ b/drivers/net/fm10k/fm10k_rxtx_vec.c @@ -1,39 +1,10 @@ -/*- - * BSD LICENSE - * - * Copyright(c) 2013-2015 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. +/* SPDX-License-Identifier: BSD-3-Clause + * Copyright(c) 2013-2015 Intel Corporation */ #include -#include +#include #include #include "fm10k.h" #include "base/fm10k_type.h" @@ -44,8 +15,6 @@ #pragma GCC diagnostic ignored "-Wcast-qual" #endif -static void -fm10k_tx_queue_release_mbufs_vec(struct fm10k_tx_queue *txq); static void fm10k_reset_tx_queue(struct fm10k_tx_queue *txq); @@ -63,11 +32,19 @@ fm10k_reset_tx_queue(struct fm10k_tx_queue *txq); #define L3TYPE_SHIFT (4) /* L4 type shift */ #define L4TYPE_SHIFT (7) +/* HBO flag shift */ +#define HBOFLAG_SHIFT (10) +/* RXE flag shift */ +#define RXEFLAG_SHIFT (13) +/* IPE/L4E flag shift */ +#define L3L4EFLAG_SHIFT (14) +/* shift PKT_RX_L4_CKSUM_GOOD into one byte by 1 bit */ +#define CKSUM_SHIFT (1) static inline void fm10k_desc_to_olflags_v(__m128i descs[4], struct rte_mbuf **rx_pkts) { - __m128i ptype0, ptype1, vtag0, vtag1; + __m128i ptype0, ptype1, vtag0, vtag1, eflag0, eflag1, cksumflag; union { uint16_t e[4]; uint64_t dword; @@ -75,20 +52,46 @@ fm10k_desc_to_olflags_v(__m128i descs[4], struct rte_mbuf **rx_pkts) const __m128i pkttype_msk = _mm_set_epi16( 0x0000, 0x0000, 0x0000, 0x0000, - PKT_RX_VLAN_PKT, PKT_RX_VLAN_PKT, - PKT_RX_VLAN_PKT, PKT_RX_VLAN_PKT); + PKT_RX_VLAN | PKT_RX_VLAN_STRIPPED, + PKT_RX_VLAN | PKT_RX_VLAN_STRIPPED, + PKT_RX_VLAN | PKT_RX_VLAN_STRIPPED, + PKT_RX_VLAN | PKT_RX_VLAN_STRIPPED); /* mask everything except rss type */ const __m128i rsstype_msk = _mm_set_epi16( 0x0000, 0x0000, 0x0000, 0x0000, 0x000F, 0x000F, 0x000F, 0x000F); + /* mask for HBO and RXE flag flags */ + const __m128i rxe_msk = _mm_set_epi16( + 0x0000, 0x0000, 0x0000, 0x0000, + 0x0001, 0x0001, 0x0001, 0x0001); + + /* mask the lower byte of ol_flags */ + const __m128i ol_flags_msk = _mm_set_epi16( + 0x0000, 0x0000, 0x0000, 0x0000, + 0x00FF, 0x00FF, 0x00FF, 0x00FF); + + const __m128i l3l4cksum_flag = _mm_set_epi8(0, 0, 0, 0, + 0, 0, 0, 0, + 0, 0, 0, 0, + (PKT_RX_IP_CKSUM_BAD | PKT_RX_L4_CKSUM_BAD) >> CKSUM_SHIFT, + (PKT_RX_IP_CKSUM_BAD | PKT_RX_L4_CKSUM_GOOD) >> CKSUM_SHIFT, + (PKT_RX_IP_CKSUM_GOOD | PKT_RX_L4_CKSUM_BAD) >> CKSUM_SHIFT, + (PKT_RX_IP_CKSUM_GOOD | PKT_RX_L4_CKSUM_GOOD) >> CKSUM_SHIFT); + + const __m128i rxe_flag = _mm_set_epi8(0, 0, 0, 0, + 0, 0, 0, 0, + 0, 0, 0, 0, + 0, 0, 0, 0); + /* map rss type to rss hash flag */ const __m128i rss_flags = _mm_set_epi8(0, 0, 0, 0, 0, 0, 0, PKT_RX_RSS_HASH, PKT_RX_RSS_HASH, 0, PKT_RX_RSS_HASH, 0, PKT_RX_RSS_HASH, PKT_RX_RSS_HASH, PKT_RX_RSS_HASH, 0); + /* Calculate RSS_hash and Vlan fields */ ptype0 = _mm_unpacklo_epi16(descs[0], descs[1]); ptype1 = _mm_unpacklo_epi16(descs[2], descs[3]); vtag0 = _mm_unpackhi_epi16(descs[0], descs[1]); @@ -99,10 +102,31 @@ fm10k_desc_to_olflags_v(__m128i descs[4], struct rte_mbuf **rx_pkts) ptype0 = _mm_shuffle_epi8(rss_flags, ptype0); vtag1 = _mm_unpacklo_epi32(vtag0, vtag1); + eflag0 = vtag1; + cksumflag = vtag1; vtag1 = _mm_srli_epi16(vtag1, VP_SHIFT); vtag1 = _mm_and_si128(vtag1, pkttype_msk); vtag1 = _mm_or_si128(ptype0, vtag1); + + /* Process err flags, simply set RECIP_ERR bit if HBO/IXE is set */ + eflag1 = _mm_srli_epi16(eflag0, RXEFLAG_SHIFT); + eflag0 = _mm_srli_epi16(eflag0, HBOFLAG_SHIFT); + eflag0 = _mm_or_si128(eflag0, eflag1); + eflag0 = _mm_and_si128(eflag0, rxe_msk); + eflag0 = _mm_shuffle_epi8(rxe_flag, eflag0); + + vtag1 = _mm_or_si128(eflag0, vtag1); + + /* Process L4/L3 checksum error flags */ + cksumflag = _mm_srli_epi16(cksumflag, L3L4EFLAG_SHIFT); + cksumflag = _mm_shuffle_epi8(l3l4cksum_flag, cksumflag); + + /* clean the higher byte and shift back the flag bits */ + cksumflag = _mm_and_si128(cksumflag, ol_flags_msk); + cksumflag = _mm_slli_epi16(cksumflag, CKSUM_SHIFT); + vtag1 = _mm_or_si128(cksumflag, vtag1); + vol.dword = _mm_cvtsi128_si64(vtag1); rx_pkts[0]->ol_flags = vol.e[0]; @@ -111,6 +135,9 @@ fm10k_desc_to_olflags_v(__m128i descs[4], struct rte_mbuf **rx_pkts) rx_pkts[3]->ol_flags = vol.e[3]; } +/* @note: When this function is changed, make corresponding change to + * fm10k_dev_supported_ptypes_get(). + */ static inline void fm10k_desc_to_pktype_v(__m128i descs[4], struct rte_mbuf **rx_pkts) { @@ -185,7 +212,7 @@ fm10k_rx_vec_condition_check(struct rte_eth_dev *dev) #ifndef RTE_FM10K_RX_OLFLAGS_ENABLE /* whithout rx ol_flags, no VP flag report */ - if (rxmode->hw_vlan_extend != 0) + if (rxmode->offloads & DEV_RX_OFFLOAD_VLAN_EXTEND) return -1; #endif @@ -193,11 +220,8 @@ fm10k_rx_vec_condition_check(struct rte_eth_dev *dev) 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) + /* no header split support */ + if (rxmode->offloads & DEV_RX_OFFLOAD_HEADER_SPLIT) return -1; return 0; @@ -273,16 +297,15 @@ fm10k_rxq_rearm(struct fm10k_rx_queue *rxq) /* 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) */ + /* load buf_addr(lo 64bit) and buf_iova(hi 64bit) */ + RTE_BUILD_BUG_ON(offsetof(struct rte_mbuf, buf_iova) != + offsetof(struct rte_mbuf, buf_addr) + 8); vaddr0 = _mm_loadu_si128((__m128i *)&mb0->buf_addr); vaddr1 = _mm_loadu_si128((__m128i *)&mb1->buf_addr); @@ -336,8 +359,15 @@ fm10k_rx_queue_release_mbufs_vec(struct fm10k_rx_queue *rxq) return; /* free all mbufs that are valid in the ring */ - for (i = rxq->next_dd; i != rxq->rxrearm_start; i = (i + 1) & mask) - rte_pktmbuf_free_seg(rxq->sw_ring[i]); + if (rxq->rxrearm_nb == 0) { + for (i = 0; i < rxq->nb_desc; i++) + if (rxq->sw_ring[i] != NULL) + rte_pktmbuf_free_seg(rxq->sw_ring[i]); + } else { + for (i = rxq->next_dd; i != rxq->rxrearm_start; + i = (i + 1) & mask) + rte_pktmbuf_free_seg(rxq->sw_ring[i]); + } rxq->rxrearm_nb = rxq->nb_desc; /* set all entries to NULL */ @@ -365,7 +395,7 @@ fm10k_recv_raw_pkts_vec(void *rx_queue, struct rte_mbuf **rx_pkts, */ rxdp = rxq->hw_ring + next_dd; - _mm_prefetch((const void *)rxdp, _MM_HINT_T0); + rte_prefetch0(rxdp); /* See if we need to rearm the RX queue - gives the prefetch a bit * of time to act @@ -400,6 +430,19 @@ fm10k_recv_raw_pkts_vec(void *rx_queue, struct rte_mbuf **rx_pkts, 0xFF, 0xFF, /* skip high 16 bits pkt_type */ 0xFF, 0xFF /* Skip pkt_type field in shuffle operation */ ); + /* + * Compile-time verify the shuffle mask + * NOTE: some field positions already verified above, but duplicated + * here for completeness in case of future modifications. + */ + 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, vlan_tci) != + offsetof(struct rte_mbuf, rx_descriptor_fields1) + 10); + RTE_BUILD_BUG_ON(offsetof(struct rte_mbuf, hash) != + offsetof(struct rte_mbuf, rx_descriptor_fields1) + 12); /* Cache is empty -> need to scan the buffer rings, but first move * the next 'n' mbufs into the cache @@ -419,37 +462,48 @@ fm10k_recv_raw_pkts_vec(void *rx_queue, struct rte_mbuf **rx_pkts, __m128i descs0[RTE_FM10K_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. */ + __m128i mbp1; + /* 2 64 bit or 4 32 bit mbuf pointers in one XMM reg. */ +#if defined(RTE_ARCH_X86_64) + __m128i mbp2; +#endif - /* B.1 load 1 mbuf point */ + /* B.1 load 2 (64 bit) or 4 (32 bit) mbuf points */ mbp1 = _mm_loadu_si128((__m128i *)&mbufp[pos]); /* Read desc statuses backwards to avoid race condition */ /* A.1 load 4 pkts desc */ descs0[3] = _mm_loadu_si128((__m128i *)(rxdp + 3)); + rte_compiler_barrier(); - /* B.2 copy 2 mbuf point into rx_pkts */ + /* B.2 copy 2 64 bit or 4 32 bit mbuf point into rx_pkts */ _mm_storeu_si128((__m128i *)&rx_pkts[pos], mbp1); - /* B.1 load 1 mbuf point */ +#if defined(RTE_ARCH_X86_64) + /* B.1 load 2 64 bit mbuf poitns */ mbp2 = _mm_loadu_si128((__m128i *)&mbufp[pos+2]); +#endif descs0[2] = _mm_loadu_si128((__m128i *)(rxdp + 2)); + rte_compiler_barrier(); /* B.1 load 2 mbuf point */ descs0[1] = _mm_loadu_si128((__m128i *)(rxdp + 1)); + rte_compiler_barrier(); descs0[0] = _mm_loadu_si128((__m128i *)(rxdp)); +#if defined(RTE_ARCH_X86_64) /* B.2 copy 2 mbuf point into rx_pkts */ _mm_storeu_si128((__m128i *)&rx_pkts[pos+2], mbp2); +#endif /* avoid compiler reorder optimization */ rte_compiler_barrier(); 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); + rte_mbuf_prefetch_part2(rx_pkts[pos]); + rte_mbuf_prefetch_part2(rx_pkts[pos + 1]); + rte_mbuf_prefetch_part2(rx_pkts[pos + 2]); + rte_mbuf_prefetch_part2(rx_pkts[pos + 3]); } /* D.1 pkt 3,4 convert format from desc to pktmbuf */ @@ -565,8 +619,11 @@ fm10k_reassemble_packets(struct fm10k_rx_queue *rxq, if (!split_flags[buf_idx]) { /* it's the last packet of the set */ +#ifdef RTE_LIBRTE_FM10K_RX_OLFLAGS_ENABLE start->hash = end->hash; start->ol_flags = end->ol_flags; + start->packet_type = end->packet_type; +#endif pkts[pkt_idx++] = start; start = end = NULL; } @@ -628,13 +685,13 @@ fm10k_recv_scattered_pkts_vec(void *rx_queue, i++; if (i == nb_bufs) return nb_bufs; + rxq->pkt_first_seg = rx_pkts[i]; } return i + fm10k_reassemble_packets(rxq, &rx_pkts[i], nb_bufs - i, &split_flags[i]); } static const struct fm10k_txq_ops vec_txq_ops = { - .release_mbufs = fm10k_tx_queue_release_mbufs_vec, .reset = fm10k_reset_tx_queue, }; @@ -644,12 +701,25 @@ fm10k_txq_vec_setup(struct fm10k_tx_queue *txq) txq->ops = &vec_txq_ops; } +int __attribute__((cold)) +fm10k_tx_vec_condition_check(struct fm10k_tx_queue *txq) +{ + /* Vector TX can't offload any features yet */ + if (txq->offloads != 0) + return -1; + + if (txq->tx_ftag_en) + return -1; + + return 0; +} + static inline void vtx1(volatile struct fm10k_tx_desc *txdp, struct rte_mbuf *pkt, uint64_t flags) { __m128i descriptor = _mm_set_epi64x(flags << 56 | - pkt->vlan_tci << 16 | pkt->data_len, + (uint64_t)pkt->vlan_tci << 16 | (uint64_t)pkt->data_len, MBUF_DMA_ADDR(pkt)); _mm_store_si128((__m128i *)txdp, descriptor); } @@ -664,7 +734,7 @@ vtx(volatile struct fm10k_tx_desc *txdp, vtx1(txdp, *pkt, flags); } -static inline int __attribute__((always_inline)) +static __rte_always_inline int fm10k_tx_free_bufs(struct fm10k_tx_queue *txq) { struct rte_mbuf **txep; @@ -685,12 +755,12 @@ fm10k_tx_free_bufs(struct fm10k_tx_queue *txq) * next_dd - (rs_thresh-1) */ txep = &txq->sw_ring[txq->next_dd - (n - 1)]; - m = __rte_pktmbuf_prefree_seg(txep[0]); + m = rte_pktmbuf_prefree_seg(txep[0]); if (likely(m != NULL)) { free[0] = m; nb_free = 1; for (i = 1; i < n; i++) { - m = __rte_pktmbuf_prefree_seg(txep[i]); + m = rte_pktmbuf_prefree_seg(txep[i]); if (likely(m != NULL)) { if (likely(m->pool == free[0]->pool)) free[nb_free++] = m; @@ -705,7 +775,7 @@ fm10k_tx_free_bufs(struct fm10k_tx_queue *txq) 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]); + m = rte_pktmbuf_prefree_seg(txep[i]); if (m != NULL) rte_mempool_put(m->pool, m); } @@ -720,7 +790,7 @@ fm10k_tx_free_bufs(struct fm10k_tx_queue *txq) return txq->rs_thresh; } -static inline void __attribute__((always_inline)) +static __rte_always_inline void tx_backlog_entry(struct rte_mbuf **txep, struct rte_mbuf **tx_pkts, uint16_t nb_pkts) { @@ -731,8 +801,8 @@ tx_backlog_entry(struct rte_mbuf **txep, } uint16_t -fm10k_xmit_pkts_vec(void *tx_queue, struct rte_mbuf **tx_pkts, - uint16_t nb_pkts) +fm10k_xmit_fixed_burst_vec(void *tx_queue, struct rte_mbuf **tx_pkts, + uint16_t nb_pkts) { struct fm10k_tx_queue *txq = (struct fm10k_tx_queue *)tx_queue; volatile struct fm10k_tx_desc *txdp; @@ -794,31 +864,6 @@ fm10k_xmit_pkts_vec(void *tx_queue, struct rte_mbuf **tx_pkts, return nb_pkts; } -static void __attribute__((cold)) -fm10k_tx_queue_release_mbufs_vec(struct fm10k_tx_queue *txq) -{ - unsigned i; - const uint16_t max_desc = (uint16_t)(txq->nb_desc - 1); - - if (txq->sw_ring == NULL || txq->nb_free == max_desc) - return; - - /* release the used mbufs in sw_ring */ - for (i = txq->next_dd - (txq->rs_thresh - 1); - i != txq->next_free; - i = (i + 1) & max_desc) - rte_pktmbuf_free_seg(txq->sw_ring[i]); - - txq->nb_free = max_desc; - - /* reset tx_entry */ - for (i = 0; i < txq->nb_desc; i++) - txq->sw_ring[i] = NULL; - - rte_free(txq->sw_ring); - txq->sw_ring = NULL; -} - static void __attribute__((cold)) fm10k_reset_tx_queue(struct fm10k_tx_queue *txq) {