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numam-dpdk/drivers/net/mlx5/mlx5_rxtx_vec_altivec.h
Thomas Monjalon 64fcadeac0 avoid AltiVec keyword vector 
The AltiVec header file is defining "vector", except in C++ build.
The keyword "vector" may conflict easily.
As a rule, it is better to use the alternative keyword "__vector",
so we will be able to #undef vector after including AltiVec header.

Later it may become possible to #undef vector in rte_altivec.h
with a compatibility breakage.

Signed-off-by: Thomas Monjalon <thomas@monjalon.net>
Reviewed-by: David Christensen <drc@linux.vnet.ibm.com>
2022-05-25 11:49:39 +02:00

1291 lines
45 KiB
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/* SPDX-License-Identifier: BSD-3-Clause
* Copyright 2017 6WIND S.A.
* Copyright 2017 Mellanox Technologies, Ltd
*/
#ifndef RTE_PMD_MLX5_RXTX_VEC_ALTIVEC_H_
#define RTE_PMD_MLX5_RXTX_VEC_ALTIVEC_H_
#include <stdint.h>
#include <string.h>
#include <stdlib.h>
#include <rte_altivec.h>
#include <rte_mbuf.h>
#include <rte_mempool.h>
#include <rte_prefetch.h>
#include <mlx5_prm.h>
#include "mlx5_defs.h"
#include "mlx5.h"
#include "mlx5_utils.h"
#include "mlx5_rxtx.h"
#include "mlx5_rxtx_vec.h"
#include "mlx5_autoconf.h"
#ifndef __INTEL_COMPILER
#pragma GCC diagnostic ignored "-Wcast-qual"
#pragma GCC diagnostic ignored "-Wstrict-aliasing"
#endif
/**
* Store free buffers to RX SW ring.
*
* @param elts
* Pointer to SW ring to be filled.
* @param pkts
* Pointer to array of packets to be stored.
* @param pkts_n
* Number of packets to be stored.
*/
static inline void
rxq_copy_mbuf_v(struct rte_mbuf **elts, struct rte_mbuf **pkts, uint16_t n)
{
unsigned int pos;
uint16_t p = n & -2;
for (pos = 0; pos < p; pos += 2) {
__vector unsigned char mbp;
mbp = (__vector unsigned char)vec_vsx_ld(0,
(signed int const *)&elts[pos]);
*(__vector unsigned char *)&pkts[pos] = mbp;
}
if (n & 1)
pkts[pos] = elts[pos];
}
/**
* Decompress a compressed completion and fill in mbufs in RX SW ring with data
* extracted from the title completion descriptor.
*
* @param rxq
* Pointer to RX queue structure.
* @param cq
* Pointer to completion array having a compressed completion at first.
* @param elts
* Pointer to SW ring to be filled. The first mbuf has to be pre-built from
* the title completion descriptor to be copied to the rest of mbufs.
*
* @return
* Number of mini-CQEs successfully decompressed.
*/
static inline uint16_t
rxq_cq_decompress_v(struct mlx5_rxq_data *rxq, volatile struct mlx5_cqe *cq,
struct rte_mbuf **elts)
{
volatile struct mlx5_mini_cqe8 *mcq = (void *)&(cq + 1)->pkt_info;
struct rte_mbuf *t_pkt = elts[0]; /* Title packet is pre-built. */
const __vector unsigned char zero = (__vector unsigned char){0};
/* Mask to shuffle from extracted mini CQE to mbuf. */
const __vector unsigned char shuf_mask1 = (__vector unsigned char){
-1, -1, -1, -1, /* skip packet_type */
7, 6, -1, -1, /* bswap16, pkt_len */
7, 6, /* bswap16, data_len */
-1, -1, /* skip vlan_tci */
3, 2, 1, 0}; /* bswap32, rss */
const __vector unsigned char shuf_mask2 = (__vector unsigned char){
-1, -1, -1, -1, /* skip packet_type */
15, 14, -1, -1, /* bswap16, pkt_len */
15, 14, /* data_len, bswap16 */
-1, -1, /* skip vlan_tci */
11, 10, 9, 8}; /* bswap32, rss */
/* Restore the compressed count. Must be 16 bits. */
const uint16_t mcqe_n = t_pkt->data_len +
(rxq->crc_present * RTE_ETHER_CRC_LEN);
const __vector unsigned char rearm =
(__vector unsigned char)vec_vsx_ld(0,
(signed int const *)&t_pkt->rearm_data);
const __vector unsigned char rxdf =
(__vector unsigned char)vec_vsx_ld(0,
(signed int const *)&t_pkt->rx_descriptor_fields1);
const __vector unsigned char crc_adj =
(__vector unsigned char)(__vector unsigned short){
0, 0, rxq->crc_present * RTE_ETHER_CRC_LEN, 0,
rxq->crc_present * RTE_ETHER_CRC_LEN, 0, 0, 0};
const __vector unsigned short rxdf_sel_mask =
(__vector unsigned short){
0xffff, 0xffff, 0, 0, 0, 0xffff, 0, 0};
__vector unsigned char ol_flags = (__vector unsigned char){0};
__vector unsigned char ol_flags_mask = (__vector unsigned char){0};
unsigned int pos;
unsigned int i;
unsigned int inv = 0;
#ifdef MLX5_PMD_SOFT_COUNTERS
const __vector unsigned char ones = vec_splat_u8(-1);
uint32_t rcvd_byte = 0;
/* Mask to shuffle byte_cnt to add up stats. Do bswap16 for all. */
const __vector unsigned char len_shuf_mask = (__vector unsigned char){
3, 2, 11, 10,
7, 6, 15, 14,
-1, -1, -1, -1,
-1, -1, -1, -1};
#endif
/*
* A. load mCQEs into a 128bit register.
* B. store rearm data to mbuf.
* C. combine data from mCQEs with rx_descriptor_fields1.
* D. store rx_descriptor_fields1.
* E. store flow tag (rte_flow mark).
*/
for (pos = 0; pos < mcqe_n; ) {
__vector unsigned char mcqe1, mcqe2;
__vector unsigned char rxdf1, rxdf2;
#ifdef MLX5_PMD_SOFT_COUNTERS
const __vector unsigned short mcqe_sel_mask =
(__vector unsigned short){0, 0, 0xffff, 0xffff,
0, 0, 0xfff, 0xffff};
const __vector unsigned char lower_half = {
0, 1, 4, 5, 8, 9, 12, 13, 16,
17, 20, 21, 24, 25, 28, 29};
const __vector unsigned char upper_half = {
2, 3, 6, 7, 10, 11, 14, 15,
18, 19, 22, 23, 26, 27, 30, 31};
__vector unsigned short left, right;
__vector unsigned char byte_cnt, invalid_mask;
__vector unsigned long lshift;
__attribute__((altivec(vector__)))
__attribute__((altivec(bool__)))
unsigned long long shmask;
const __vector unsigned long shmax = {64, 64};
#endif
for (i = 0; i < MLX5_VPMD_DESCS_PER_LOOP; ++i)
if (likely(pos + i < mcqe_n))
rte_prefetch0((void *)(cq + pos + i));
/* A.1 load mCQEs into a 128bit register. */
mcqe1 = (__vector unsigned char)vec_vsx_ld(0,
(signed int const *)&mcq[pos % 8]);
mcqe2 = (__vector unsigned char)vec_vsx_ld(0,
(signed int const *)&mcq[pos % 8 + 2]);
/* B.1 store rearm data to mbuf. */
*(__vector unsigned char *)
&elts[pos]->rearm_data = rearm;
*(__vector unsigned char *)
&elts[pos + 1]->rearm_data = rearm;
/* C.1 combine data from mCQEs with rx_descriptor_fields1. */
rxdf1 = vec_perm(mcqe1, zero, shuf_mask1);
rxdf2 = vec_perm(mcqe1, zero, shuf_mask2);
rxdf1 = (__vector unsigned char)
((__vector unsigned short)rxdf1 -
(__vector unsigned short)crc_adj);
rxdf2 = (__vector unsigned char)
((__vector unsigned short)rxdf2 -
(__vector unsigned short)crc_adj);
rxdf1 = (__vector unsigned char)
vec_sel((__vector unsigned short)rxdf1,
(__vector unsigned short)rxdf, rxdf_sel_mask);
rxdf2 = (__vector unsigned char)
vec_sel((__vector unsigned short)rxdf2,
(__vector unsigned short)rxdf, rxdf_sel_mask);
/* D.1 store rx_descriptor_fields1. */
*(__vector unsigned char *)
&elts[pos]->rx_descriptor_fields1 = rxdf1;
*(__vector unsigned char *)
&elts[pos + 1]->rx_descriptor_fields1 = rxdf2;
/* B.1 store rearm data to mbuf. */
*(__vector unsigned char *)
&elts[pos + 2]->rearm_data = rearm;
*(__vector unsigned char *)
&elts[pos + 3]->rearm_data = rearm;
/* C.1 combine data from mCQEs with rx_descriptor_fields1. */
rxdf1 = vec_perm(mcqe2, zero, shuf_mask1);
rxdf2 = vec_perm(mcqe2, zero, shuf_mask2);
rxdf1 = (__vector unsigned char)
((__vector unsigned short)rxdf1 -
(__vector unsigned short)crc_adj);
rxdf2 = (__vector unsigned char)
((__vector unsigned short)rxdf2 -
(__vector unsigned short)crc_adj);
rxdf1 = (__vector unsigned char)
vec_sel((__vector unsigned short)rxdf1,
(__vector unsigned short)rxdf, rxdf_sel_mask);
rxdf2 = (__vector unsigned char)
vec_sel((__vector unsigned short)rxdf2,
(__vector unsigned short)rxdf, rxdf_sel_mask);
/* D.1 store rx_descriptor_fields1. */
*(__vector unsigned char *)
&elts[pos + 2]->rx_descriptor_fields1 = rxdf1;
*(__vector unsigned char *)
&elts[pos + 3]->rx_descriptor_fields1 = rxdf2;
#ifdef MLX5_PMD_SOFT_COUNTERS
invalid_mask = (__vector unsigned char)(__vector unsigned long){
(mcqe_n - pos) * sizeof(uint16_t) * 8, 0};
lshift =
vec_splat((__vector unsigned long)invalid_mask, 0);
shmask = vec_cmpgt(shmax, lshift);
invalid_mask = (__vector unsigned char)
vec_sl((__vector unsigned long)ones, lshift);
invalid_mask = (__vector unsigned char)
vec_sel((__vector unsigned long)shmask,
(__vector unsigned long)invalid_mask, shmask);
byte_cnt = (__vector unsigned char)
vec_sel((__vector unsigned short)
vec_sro((__vector unsigned short)mcqe1,
(__vector unsigned char){32}),
(__vector unsigned short)mcqe2, mcqe_sel_mask);
byte_cnt = vec_perm(byte_cnt, zero, len_shuf_mask);
byte_cnt = (__vector unsigned char)
vec_andc((__vector unsigned long)byte_cnt,
(__vector unsigned long)invalid_mask);
left = vec_perm((__vector unsigned short)byte_cnt,
(__vector unsigned short)zero, lower_half);
right = vec_perm((__vector unsigned short)byte_cnt,
(__vector unsigned short)zero, upper_half);
byte_cnt = (__vector unsigned char)vec_add(left, right);
left = vec_perm((__vector unsigned short)byte_cnt,
(__vector unsigned short)zero, lower_half);
right = vec_perm((__vector unsigned short)byte_cnt,
(__vector unsigned short)zero, upper_half);
byte_cnt = (__vector unsigned char)vec_add(left, right);
rcvd_byte += ((__vector unsigned long)byte_cnt)[0];
#endif
if (rxq->mark) {
if (rxq->mcqe_format !=
MLX5_CQE_RESP_FORMAT_FTAG_STRIDX) {
const uint32_t flow_tag = t_pkt->hash.fdir.hi;
/* E.1 store flow tag (rte_flow mark). */
elts[pos]->hash.fdir.hi = flow_tag;
elts[pos + 1]->hash.fdir.hi = flow_tag;
elts[pos + 2]->hash.fdir.hi = flow_tag;
elts[pos + 3]->hash.fdir.hi = flow_tag;
} else {
const __vector unsigned char flow_mark_adj =
(__vector unsigned char)
(__vector unsigned int){
-1, -1, -1, -1};
const __vector unsigned char flow_mark_shuf =
(__vector unsigned char){
-1, -1, -1, -1,
-1, -1, -1, -1,
12, 8, 9, -1,
4, 0, 1, -1};
const __vector unsigned char ft_mask =
(__vector unsigned char)
(__vector unsigned int){
0xffffff00, 0xffffff00,
0xffffff00, 0xffffff00};
const __vector unsigned char fdir_flags =
(__vector unsigned char)
(__vector unsigned int){
RTE_MBUF_F_RX_FDIR, RTE_MBUF_F_RX_FDIR,
RTE_MBUF_F_RX_FDIR, RTE_MBUF_F_RX_FDIR};
const __vector unsigned char fdir_all_flags =
(__vector unsigned char)
(__vector unsigned int){
RTE_MBUF_F_RX_FDIR | RTE_MBUF_F_RX_FDIR_ID,
RTE_MBUF_F_RX_FDIR | RTE_MBUF_F_RX_FDIR_ID,
RTE_MBUF_F_RX_FDIR | RTE_MBUF_F_RX_FDIR_ID,
RTE_MBUF_F_RX_FDIR | RTE_MBUF_F_RX_FDIR_ID};
__vector unsigned char fdir_id_flags =
(__vector unsigned char)
(__vector unsigned int){
RTE_MBUF_F_RX_FDIR_ID, RTE_MBUF_F_RX_FDIR_ID,
RTE_MBUF_F_RX_FDIR_ID, RTE_MBUF_F_RX_FDIR_ID};
/* Extract flow_tag field. */
__vector unsigned char ftag0 = vec_perm(mcqe1,
zero, flow_mark_shuf);
__vector unsigned char ftag1 = vec_perm(mcqe2,
zero, flow_mark_shuf);
__vector unsigned char ftag =
(__vector unsigned char)
vec_mergel((__vector unsigned int)ftag0,
(__vector unsigned int)ftag1);
__vector unsigned char invalid_mask =
(__vector unsigned char)
vec_cmpeq((__vector unsigned int)ftag,
(__vector unsigned int)zero);
ol_flags_mask = (__vector unsigned char)
vec_or((__vector unsigned long)
ol_flags_mask,
(__vector unsigned long)fdir_all_flags);
/* Set RTE_MBUF_F_RX_FDIR if flow tag is non-zero. */
invalid_mask = (__vector unsigned char)
vec_cmpeq((__vector unsigned int)ftag,
(__vector unsigned int)zero);
ol_flags = (__vector unsigned char)
vec_or((__vector unsigned long)ol_flags,
(__vector unsigned long)
vec_andc((__vector unsigned long)
fdir_flags,
(__vector unsigned long)invalid_mask));
ol_flags_mask = (__vector unsigned char)
vec_or((__vector unsigned long)
ol_flags_mask,
(__vector unsigned long)fdir_flags);
/* Mask out invalid entries. */
fdir_id_flags = (__vector unsigned char)
vec_andc((__vector unsigned long)
fdir_id_flags,
(__vector unsigned long)invalid_mask);
/* Check if flow tag MLX5_FLOW_MARK_DEFAULT. */
ol_flags = (__vector unsigned char)
vec_or((__vector unsigned long)ol_flags,
(__vector unsigned long)
vec_andc((__vector unsigned long)
fdir_id_flags,
(__vector unsigned long)
vec_cmpeq((__vector unsigned int)ftag,
(__vector unsigned int)ft_mask)));
ftag = (__vector unsigned char)
((__vector unsigned int)ftag +
(__vector unsigned int)flow_mark_adj);
elts[pos]->hash.fdir.hi =
((__vector unsigned int)ftag)[0];
elts[pos + 1]->hash.fdir.hi =
((__vector unsigned int)ftag)[1];
elts[pos + 2]->hash.fdir.hi =
((__vector unsigned int)ftag)[2];
elts[pos + 3]->hash.fdir.hi =
((__vector unsigned int)ftag)[3];
}
}
if (unlikely(rxq->mcqe_format != MLX5_CQE_RESP_FORMAT_HASH)) {
if (rxq->mcqe_format ==
MLX5_CQE_RESP_FORMAT_L34H_STRIDX) {
const uint8_t pkt_info =
(cq->pkt_info & 0x3) << 6;
const uint8_t pkt_hdr0 =
mcq[pos % 8].hdr_type;
const uint8_t pkt_hdr1 =
mcq[pos % 8 + 1].hdr_type;
const uint8_t pkt_hdr2 =
mcq[pos % 8 + 2].hdr_type;
const uint8_t pkt_hdr3 =
mcq[pos % 8 + 3].hdr_type;
const __vector unsigned char vlan_mask =
(__vector unsigned char)
(__vector unsigned int) {
(RTE_MBUF_F_RX_VLAN | RTE_MBUF_F_RX_VLAN_STRIPPED),
(RTE_MBUF_F_RX_VLAN | RTE_MBUF_F_RX_VLAN_STRIPPED),
(RTE_MBUF_F_RX_VLAN | RTE_MBUF_F_RX_VLAN_STRIPPED),
(RTE_MBUF_F_RX_VLAN | RTE_MBUF_F_RX_VLAN_STRIPPED)};
const __vector unsigned char cv_mask =
(__vector unsigned char)
(__vector unsigned int) {
MLX5_CQE_VLAN_STRIPPED,
MLX5_CQE_VLAN_STRIPPED,
MLX5_CQE_VLAN_STRIPPED,
MLX5_CQE_VLAN_STRIPPED};
__vector unsigned char pkt_cv =
(__vector unsigned char)
(__vector unsigned int) {
pkt_hdr0 & 0x1, pkt_hdr1 & 0x1,
pkt_hdr2 & 0x1, pkt_hdr3 & 0x1};
ol_flags_mask = (__vector unsigned char)
vec_or((__vector unsigned long)
ol_flags_mask,
(__vector unsigned long)vlan_mask);
ol_flags = (__vector unsigned char)
vec_or((__vector unsigned long)ol_flags,
(__vector unsigned long)
vec_and((__vector unsigned long)vlan_mask,
(__vector unsigned long)
vec_cmpeq((__vector unsigned int)pkt_cv,
(__vector unsigned int)cv_mask)));
elts[pos]->packet_type =
mlx5_ptype_table[(pkt_hdr0 >> 2) |
pkt_info];
elts[pos + 1]->packet_type =
mlx5_ptype_table[(pkt_hdr1 >> 2) |
pkt_info];
elts[pos + 2]->packet_type =
mlx5_ptype_table[(pkt_hdr2 >> 2) |
pkt_info];
elts[pos + 3]->packet_type =
mlx5_ptype_table[(pkt_hdr3 >> 2) |
pkt_info];
if (rxq->tunnel) {
elts[pos]->packet_type |=
!!(((pkt_hdr0 >> 2) |
pkt_info) & (1 << 6));
elts[pos + 1]->packet_type |=
!!(((pkt_hdr1 >> 2) |
pkt_info) & (1 << 6));
elts[pos + 2]->packet_type |=
!!(((pkt_hdr2 >> 2) |
pkt_info) & (1 << 6));
elts[pos + 3]->packet_type |=
!!(((pkt_hdr3 >> 2) |
pkt_info) & (1 << 6));
}
}
const __vector unsigned char hash_mask =
(__vector unsigned char)(__vector unsigned int) {
RTE_MBUF_F_RX_RSS_HASH,
RTE_MBUF_F_RX_RSS_HASH,
RTE_MBUF_F_RX_RSS_HASH,
RTE_MBUF_F_RX_RSS_HASH};
const __vector unsigned char rearm_flags =
(__vector unsigned char)(__vector unsigned int) {
(uint32_t)t_pkt->ol_flags,
(uint32_t)t_pkt->ol_flags,
(uint32_t)t_pkt->ol_flags,
(uint32_t)t_pkt->ol_flags};
ol_flags_mask = (__vector unsigned char)
vec_or((__vector unsigned long)ol_flags_mask,
(__vector unsigned long)hash_mask);
ol_flags = (__vector unsigned char)
vec_or((__vector unsigned long)ol_flags,
(__vector unsigned long)
vec_andc((__vector unsigned long)rearm_flags,
(__vector unsigned long)ol_flags_mask));
elts[pos]->ol_flags =
((__vector unsigned int)ol_flags)[0];
elts[pos + 1]->ol_flags =
((__vector unsigned int)ol_flags)[1];
elts[pos + 2]->ol_flags =
((__vector unsigned int)ol_flags)[2];
elts[pos + 3]->ol_flags =
((__vector unsigned int)ol_flags)[3];
elts[pos]->hash.rss = 0;
elts[pos + 1]->hash.rss = 0;
elts[pos + 2]->hash.rss = 0;
elts[pos + 3]->hash.rss = 0;
}
if (rxq->dynf_meta) {
int32_t offs = rxq->flow_meta_offset;
const uint32_t meta =
*RTE_MBUF_DYNFIELD(t_pkt, offs, uint32_t *);
/* Check if title packet has valid metadata. */
if (meta) {
MLX5_ASSERT(t_pkt->ol_flags &
rxq->flow_meta_mask);
*RTE_MBUF_DYNFIELD(elts[pos], offs,
uint32_t *) = meta;
*RTE_MBUF_DYNFIELD(elts[pos + 1], offs,
uint32_t *) = meta;
*RTE_MBUF_DYNFIELD(elts[pos + 2], offs,
uint32_t *) = meta;
*RTE_MBUF_DYNFIELD(elts[pos + 3], offs,
uint32_t *) = meta;
}
}
pos += MLX5_VPMD_DESCS_PER_LOOP;
/* Move to next CQE and invalidate consumed CQEs. */
if (!(pos & 0x7) && pos < mcqe_n) {
if (pos + 8 < mcqe_n)
rte_prefetch0((void *)(cq + pos + 8));
mcq = (void *)&(cq + pos)->pkt_info;
for (i = 0; i < 8; ++i)
cq[inv++].op_own = MLX5_CQE_INVALIDATE;
}
}
/* Invalidate the rest of CQEs. */
for (; inv < mcqe_n; ++inv)
cq[inv].op_own = MLX5_CQE_INVALIDATE;
#ifdef MLX5_PMD_SOFT_COUNTERS
rxq->stats.ipackets += mcqe_n;
rxq->stats.ibytes += rcvd_byte;
#endif
return mcqe_n;
}
/**
* Calculate packet type and offload flag for mbuf and store it.
*
* @param rxq
* Pointer to RX queue structure.
* @param cqes[4]
* Array of four 16bytes completions extracted from the original completion
* descriptor.
* @param op_err
* Opcode vector having responder error status. Each field is 4B.
* @param pkts
* Pointer to array of packets to be filled.
*/
static inline void
rxq_cq_to_ptype_oflags_v(struct mlx5_rxq_data *rxq,
__vector unsigned char cqes[4], __vector unsigned char op_err,
struct rte_mbuf **pkts)
{
__vector unsigned char pinfo0, pinfo1;
__vector unsigned char pinfo, ptype;
__vector unsigned char ol_flags = (__vector unsigned char)
(__vector unsigned int){
rxq->rss_hash * RTE_MBUF_F_RX_RSS_HASH |
rxq->hw_timestamp * rxq->timestamp_rx_flag,
rxq->rss_hash * RTE_MBUF_F_RX_RSS_HASH |
rxq->hw_timestamp * rxq->timestamp_rx_flag,
rxq->rss_hash * RTE_MBUF_F_RX_RSS_HASH |
rxq->hw_timestamp * rxq->timestamp_rx_flag,
rxq->rss_hash * RTE_MBUF_F_RX_RSS_HASH |
rxq->hw_timestamp * rxq->timestamp_rx_flag};
__vector unsigned char cv_flags;
const __vector unsigned char zero = (__vector unsigned char){0};
const __vector unsigned char ptype_mask =
(__vector unsigned char)(__vector unsigned int){
0x0000fd06, 0x0000fd06, 0x0000fd06, 0x0000fd06};
const __vector unsigned char ptype_ol_mask =
(__vector unsigned char)(__vector unsigned int){
0x00000106, 0x00000106, 0x00000106, 0x00000106};
const __vector unsigned char pinfo_mask =
(__vector unsigned char)(__vector unsigned int){
0x00000003, 0x00000003, 0x00000003, 0x00000003};
const __vector unsigned char cv_flag_sel = (__vector unsigned char){
0, (uint8_t)(RTE_MBUF_F_RX_VLAN | RTE_MBUF_F_RX_VLAN_STRIPPED),
(uint8_t)(RTE_MBUF_F_RX_IP_CKSUM_GOOD >> 1), 0,
(uint8_t)(RTE_MBUF_F_RX_L4_CKSUM_GOOD >> 1), 0,
(uint8_t)((RTE_MBUF_F_RX_IP_CKSUM_GOOD | RTE_MBUF_F_RX_L4_CKSUM_GOOD) >> 1),
0, 0, 0, 0, 0, 0, 0, 0, 0};
const __vector unsigned char cv_mask =
(__vector unsigned char)(__vector unsigned int){
RTE_MBUF_F_RX_IP_CKSUM_GOOD | RTE_MBUF_F_RX_L4_CKSUM_GOOD |
RTE_MBUF_F_RX_VLAN | RTE_MBUF_F_RX_VLAN_STRIPPED,
RTE_MBUF_F_RX_IP_CKSUM_GOOD | RTE_MBUF_F_RX_L4_CKSUM_GOOD |
RTE_MBUF_F_RX_VLAN | RTE_MBUF_F_RX_VLAN_STRIPPED,
RTE_MBUF_F_RX_IP_CKSUM_GOOD | RTE_MBUF_F_RX_L4_CKSUM_GOOD |
RTE_MBUF_F_RX_VLAN | RTE_MBUF_F_RX_VLAN_STRIPPED,
RTE_MBUF_F_RX_IP_CKSUM_GOOD | RTE_MBUF_F_RX_L4_CKSUM_GOOD |
RTE_MBUF_F_RX_VLAN | RTE_MBUF_F_RX_VLAN_STRIPPED};
const __vector unsigned char mbuf_init =
(__vector unsigned char)vec_vsx_ld
(0, (__vector unsigned char *)&rxq->mbuf_initializer);
const __vector unsigned short rearm_sel_mask =
(__vector unsigned short){0, 0, 0, 0, 0xffff, 0xffff, 0, 0};
__vector unsigned char rearm0, rearm1, rearm2, rearm3;
uint8_t pt_idx0, pt_idx1, pt_idx2, pt_idx3;
/* Extract pkt_info field. */
pinfo0 = (__vector unsigned char)
vec_mergeh((__vector unsigned int)cqes[0],
(__vector unsigned int)cqes[1]);
pinfo1 = (__vector unsigned char)
vec_mergeh((__vector unsigned int)cqes[2],
(__vector unsigned int)cqes[3]);
pinfo = (__vector unsigned char)
vec_mergeh((__vector unsigned long)pinfo0,
(__vector unsigned long)pinfo1);
/* Extract hdr_type_etc field. */
pinfo0 = (__vector unsigned char)
vec_mergel((__vector unsigned int)cqes[0],
(__vector unsigned int)cqes[1]);
pinfo1 = (__vector unsigned char)
vec_mergel((__vector unsigned int)cqes[2],
(__vector unsigned int)cqes[3]);
ptype = (__vector unsigned char)
vec_mergeh((__vector unsigned long)pinfo0,
(__vector unsigned long)pinfo1);
if (rxq->mark) {
const __vector unsigned char pinfo_ft_mask =
(__vector unsigned char)(__vector unsigned int){
0xffffff00, 0xffffff00, 0xffffff00, 0xffffff00};
const __vector unsigned char fdir_flags =
(__vector unsigned char)(__vector unsigned int){
RTE_MBUF_F_RX_FDIR, RTE_MBUF_F_RX_FDIR,
RTE_MBUF_F_RX_FDIR, RTE_MBUF_F_RX_FDIR};
__vector unsigned char fdir_id_flags =
(__vector unsigned char)(__vector unsigned int){
RTE_MBUF_F_RX_FDIR_ID, RTE_MBUF_F_RX_FDIR_ID,
RTE_MBUF_F_RX_FDIR_ID, RTE_MBUF_F_RX_FDIR_ID};
__vector unsigned char flow_tag, invalid_mask;
flow_tag = (__vector unsigned char)
vec_and((__vector unsigned long)pinfo,
(__vector unsigned long)pinfo_ft_mask);
/* Check if flow tag is non-zero then set RTE_MBUF_F_RX_FDIR. */
invalid_mask = (__vector unsigned char)
vec_cmpeq((__vector unsigned int)flow_tag,
(__vector unsigned int)zero);
ol_flags = (__vector unsigned char)
vec_or((__vector unsigned long)ol_flags,
(__vector unsigned long)
vec_andc((__vector unsigned long)fdir_flags,
(__vector unsigned long)invalid_mask));
/* Mask out invalid entries. */
fdir_id_flags = (__vector unsigned char)
vec_andc((__vector unsigned long)fdir_id_flags,
(__vector unsigned long)invalid_mask);
/* Check if flow tag MLX5_FLOW_MARK_DEFAULT. */
ol_flags = (__vector unsigned char)
vec_or((__vector unsigned long)ol_flags,
(__vector unsigned long)
vec_andc((__vector unsigned long)fdir_id_flags,
(__vector unsigned long)
vec_cmpeq((__vector unsigned int)flow_tag,
(__vector unsigned int)pinfo_ft_mask)));
}
/*
* Merge the two fields to generate the following:
* bit[1] = l3_ok
* bit[2] = l4_ok
* bit[8] = cv
* bit[11:10] = l3_hdr_type
* bit[14:12] = l4_hdr_type
* bit[15] = ip_frag
* bit[16] = tunneled
* bit[17] = outer_l3_type
*/
ptype = (__vector unsigned char)
vec_and((__vector unsigned long)ptype,
(__vector unsigned long)ptype_mask);
pinfo = (__vector unsigned char)
vec_and((__vector unsigned long)pinfo,
(__vector unsigned long)pinfo_mask);
pinfo = (__vector unsigned char)
vec_sl((__vector unsigned int)pinfo,
(__vector unsigned int){16, 16, 16, 16});
/* Make pinfo has merged fields for ol_flags calculation. */
pinfo = (__vector unsigned char)
vec_or((__vector unsigned long)ptype,
(__vector unsigned long)pinfo);
ptype = (__vector unsigned char)
vec_sr((__vector unsigned int)pinfo,
(__vector unsigned int){10, 10, 10, 10});
ptype = (__vector unsigned char)
vec_packs((__vector unsigned int)ptype,
(__vector unsigned int)zero);
/* Errored packets will have RTE_PTYPE_ALL_MASK. */
op_err = (__vector unsigned char)
vec_sr((__vector unsigned short)op_err,
(__vector unsigned short){8, 8, 8, 8, 8, 8, 8, 8});
ptype = (__vector unsigned char)
vec_or((__vector unsigned long)ptype,
(__vector unsigned long)op_err);
pt_idx0 = (uint8_t)((__vector unsigned char)ptype)[0];
pt_idx1 = (uint8_t)((__vector unsigned char)ptype)[2];
pt_idx2 = (uint8_t)((__vector unsigned char)ptype)[4];
pt_idx3 = (uint8_t)((__vector unsigned char)ptype)[6];
pkts[0]->packet_type = mlx5_ptype_table[pt_idx0] |
!!(pt_idx0 & (1 << 6)) * rxq->tunnel;
pkts[1]->packet_type = mlx5_ptype_table[pt_idx1] |
!!(pt_idx1 & (1 << 6)) * rxq->tunnel;
pkts[2]->packet_type = mlx5_ptype_table[pt_idx2] |
!!(pt_idx2 & (1 << 6)) * rxq->tunnel;
pkts[3]->packet_type = mlx5_ptype_table[pt_idx3] |
!!(pt_idx3 & (1 << 6)) * rxq->tunnel;
/* Fill flags for checksum and VLAN. */
pinfo = (__vector unsigned char)
vec_and((__vector unsigned long)pinfo,
(__vector unsigned long)ptype_ol_mask);
pinfo = vec_perm(cv_flag_sel, zero, pinfo);
/* Locate checksum flags at byte[2:1] and merge with VLAN flags. */
cv_flags = (__vector unsigned char)
vec_sl((__vector unsigned int)pinfo,
(__vector unsigned int){9, 9, 9, 9});
cv_flags = (__vector unsigned char)
vec_or((__vector unsigned long)pinfo,
(__vector unsigned long)cv_flags);
/* Move back flags to start from byte[0]. */
cv_flags = (__vector unsigned char)
vec_sr((__vector unsigned int)cv_flags,
(__vector unsigned int){8, 8, 8, 8});
/* Mask out garbage bits. */
cv_flags = (__vector unsigned char)
vec_and((__vector unsigned long)cv_flags,
(__vector unsigned long)cv_mask);
/* Merge to ol_flags. */
ol_flags = (__vector unsigned char)
vec_or((__vector unsigned long)ol_flags,
(__vector unsigned long)cv_flags);
/* Merge mbuf_init and ol_flags. */
rearm0 = (__vector unsigned char)
vec_sel((__vector unsigned short)mbuf_init,
(__vector unsigned short)
vec_slo((__vector unsigned short)ol_flags,
(__vector unsigned char){64}), rearm_sel_mask);
rearm1 = (__vector unsigned char)
vec_sel((__vector unsigned short)mbuf_init,
(__vector unsigned short)
vec_slo((__vector unsigned short)ol_flags,
(__vector unsigned char){32}), rearm_sel_mask);
rearm2 = (__vector unsigned char)
vec_sel((__vector unsigned short)mbuf_init,
(__vector unsigned short)ol_flags, rearm_sel_mask);
rearm3 = (__vector unsigned char)
vec_sel((__vector unsigned short)mbuf_init,
(__vector unsigned short)
vec_sro((__vector unsigned short)ol_flags,
(__vector unsigned char){32}), rearm_sel_mask);
/* Write 8B rearm_data and 8B ol_flags. */
vec_vsx_st(rearm0, 0,
(__vector unsigned char *)&pkts[0]->rearm_data);
vec_vsx_st(rearm1, 0,
(__vector unsigned char *)&pkts[1]->rearm_data);
vec_vsx_st(rearm2, 0,
(__vector unsigned char *)&pkts[2]->rearm_data);
vec_vsx_st(rearm3, 0,
(__vector unsigned char *)&pkts[3]->rearm_data);
}
/**
* Process a non-compressed completion and fill in mbufs in RX SW ring
* with data extracted from the title completion descriptor.
*
* @param rxq
* Pointer to RX queue structure.
* @param cq
* Pointer to completion array having a non-compressed completion at first.
* @param elts
* Pointer to SW ring to be filled. The first mbuf has to be pre-built from
* the title completion descriptor to be copied to the rest of mbufs.
* @param[out] pkts
* Array to store received packets.
* @param pkts_n
* Maximum number of packets in array.
* @param[out] err
* Pointer to a flag. Set non-zero value if pkts array has at least one error
* packet to handle.
* @param[out] comp
* Pointer to a index. Set it to the first compressed completion if any.
*
* @return
* Number of CQEs successfully processed.
*/
static inline uint16_t
rxq_cq_process_v(struct mlx5_rxq_data *rxq, volatile struct mlx5_cqe *cq,
struct rte_mbuf **elts, struct rte_mbuf **pkts,
uint16_t pkts_n, uint64_t *err, uint64_t *comp)
{
const uint16_t q_n = 1 << rxq->cqe_n;
const uint16_t q_mask = q_n - 1;
unsigned int pos;
uint64_t n = 0;
uint64_t comp_idx = MLX5_VPMD_DESCS_PER_LOOP;
uint16_t nocmp_n = 0;
unsigned int ownership = !!(rxq->cq_ci & (q_mask + 1));
const __vector unsigned char zero = (__vector unsigned char){0};
const __vector unsigned char ones = vec_splat_u8(-1);
const __vector unsigned char owner_check =
(__vector unsigned char)(__vector unsigned long){
0x0100000001000000LL, 0x0100000001000000LL};
const __vector unsigned char opcode_check =
(__vector unsigned char)(__vector unsigned long){
0xf0000000f0000000LL, 0xf0000000f0000000LL};
const __vector unsigned char format_check =
(__vector unsigned char)(__vector unsigned long){
0x0c0000000c000000LL, 0x0c0000000c000000LL};
const __vector unsigned char resp_err_check =
(__vector unsigned char)(__vector unsigned long){
0xe0000000e0000000LL, 0xe0000000e0000000LL};
#ifdef MLX5_PMD_SOFT_COUNTERS
uint32_t rcvd_byte = 0;
/* Mask to shuffle byte_cnt to add up stats. Do bswap16 for all. */
const __vector unsigned char len_shuf_mask = (__vector unsigned char){
1, 0, 5, 4,
9, 8, 13, 12,
-1, -1, -1, -1,
-1, -1, -1, -1};
#endif
/* Mask to shuffle from extracted CQE to mbuf. */
const __vector unsigned char shuf_mask = (__vector unsigned char){
5, 4, /* bswap16, pkt_len */
-1, -1, /* zero out 2nd half of pkt_len */
5, 4, /* bswap16, data_len */
11, 10, /* bswap16, vlan+tci */
15, 14, 13, 12, /* bswap32, rss */
1, 2, 3, -1}; /* fdir.hi */
/* Mask to blend from the last Qword to the first DQword. */
/* Mask to blend from the last Qword to the first DQword. */
const __vector unsigned char blend_mask = (__vector unsigned char){
-1, 0, 0, 0,
0, 0, 0, 0,
-1, -1, -1, -1,
-1, -1, -1, -1};
const __vector unsigned char crc_adj =
(__vector unsigned char)(__vector unsigned short){
rxq->crc_present * RTE_ETHER_CRC_LEN, 0,
rxq->crc_present * RTE_ETHER_CRC_LEN, 0, 0, 0, 0, 0};
const __vector unsigned char flow_mark_adj =
(__vector unsigned char)(__vector unsigned int){
0, 0, 0, rxq->mark * (-1)};
const __vector unsigned short cqe_sel_mask1 =
(__vector unsigned short){0, 0, 0, 0, 0xffff, 0xffff, 0, 0};
const __vector unsigned short cqe_sel_mask2 =
(__vector unsigned short){0, 0, 0xffff, 0, 0, 0, 0, 0};
/*
* A. load first Qword (8bytes) in one loop.
* B. copy 4 mbuf pointers from elts ring to returning pkts.
* C. load remaining CQE data and extract necessary fields.
* Final 16bytes cqes[] extracted from original 64bytes CQE has the
* following structure:
* struct {
* uint8_t pkt_info;
* uint8_t flow_tag[3];
* uint16_t byte_cnt;
* uint8_t rsvd4;
* uint8_t op_own;
* uint16_t hdr_type_etc;
* uint16_t vlan_info;
* uint32_t rx_has_res;
* } c;
* D. fill in mbuf.
* E. get valid CQEs.
* F. find compressed CQE.
*/
for (pos = 0;
pos < pkts_n;
pos += MLX5_VPMD_DESCS_PER_LOOP) {
__vector unsigned char cqes[MLX5_VPMD_DESCS_PER_LOOP];
__vector unsigned char cqe_tmp1, cqe_tmp2;
__vector unsigned char pkt_mb0, pkt_mb1, pkt_mb2, pkt_mb3;
__vector unsigned char op_own, op_own_tmp1, op_own_tmp2;
__vector unsigned char opcode, owner_mask, invalid_mask;
__vector unsigned char comp_mask;
__vector unsigned char mask;
#ifdef MLX5_PMD_SOFT_COUNTERS
const __vector unsigned char lower_half = {
0, 1, 4, 5, 8, 9, 12, 13,
16, 17, 20, 21, 24, 25, 28, 29};
const __vector unsigned char upper_half = {
2, 3, 6, 7, 10, 11, 14, 15,
18, 19, 22, 23, 26, 27, 30, 31};
const __vector unsigned long shmax = {64, 64};
__vector unsigned char byte_cnt;
__vector unsigned short left, right;
__vector unsigned long lshift;
__vector __attribute__((altivec(bool__)))
unsigned long shmask;
#endif
__vector unsigned char mbp1, mbp2;
__vector unsigned char p =
(__vector unsigned char)(__vector unsigned short){
0, 1, 2, 3, 0, 0, 0, 0};
unsigned int p1, p2, p3;
/* Prefetch next 4 CQEs. */
if (pkts_n - pos >= 2 * MLX5_VPMD_DESCS_PER_LOOP) {
rte_prefetch0(&cq[pos + MLX5_VPMD_DESCS_PER_LOOP]);
rte_prefetch0(&cq[pos + MLX5_VPMD_DESCS_PER_LOOP + 1]);
rte_prefetch0(&cq[pos + MLX5_VPMD_DESCS_PER_LOOP + 2]);
rte_prefetch0(&cq[pos + MLX5_VPMD_DESCS_PER_LOOP + 3]);
}
/* A.0 do not cross the end of CQ. */
mask = (__vector unsigned char)(__vector unsigned long){
(pkts_n - pos) * sizeof(uint16_t) * 8, 0};
{
__vector unsigned long lshift;
__vector __attribute__((altivec(bool__)))
unsigned long shmask;
const __vector unsigned long shmax = {64, 64};
lshift = vec_splat((__vector unsigned long)mask, 0);
shmask = vec_cmpgt(shmax, lshift);
mask = (__vector unsigned char)
vec_sl((__vector unsigned long)ones, lshift);
mask = (__vector unsigned char)
vec_sel((__vector unsigned long)shmask,
(__vector unsigned long)mask, shmask);
}
p = (__vector unsigned char)
vec_andc((__vector unsigned long)p,
(__vector unsigned long)mask);
/* A.1 load cqes. */
p3 = (unsigned int)((__vector unsigned short)p)[3];
cqes[3] = (__vector unsigned char)(__vector unsigned long){
*(__rte_aligned(8) unsigned long *)
&cq[pos + p3].sop_drop_qpn, 0LL};
rte_compiler_barrier();
p2 = (unsigned int)((__vector unsigned short)p)[2];
cqes[2] = (__vector unsigned char)(__vector unsigned long){
*(__rte_aligned(8) unsigned long *)
&cq[pos + p2].sop_drop_qpn, 0LL};
rte_compiler_barrier();
/* B.1 load mbuf pointers. */
mbp1 = (__vector unsigned char)vec_vsx_ld(0,
(signed int const *)&elts[pos]);
mbp2 = (__vector unsigned char)vec_vsx_ld(0,
(signed int const *)&elts[pos + 2]);
/* A.1 load a block having op_own. */
p1 = (unsigned int)((__vector unsigned short)p)[1];
cqes[1] = (__vector unsigned char)(__vector unsigned long){
*(__rte_aligned(8) unsigned long *)
&cq[pos + p1].sop_drop_qpn, 0LL};
rte_compiler_barrier();
cqes[0] = (__vector unsigned char)(__vector unsigned long){
*(__rte_aligned(8) unsigned long *)
&cq[pos].sop_drop_qpn, 0LL};
rte_compiler_barrier();
/* B.2 copy mbuf pointers. */
*(__vector unsigned char *)&pkts[pos] = mbp1;
*(__vector unsigned char *)&pkts[pos + 2] = mbp2;
rte_io_rmb();
/* C.1 load remaining CQE data and extract necessary fields. */
cqe_tmp2 = *(__vector unsigned char *)
&cq[pos + p3].pkt_info;
cqe_tmp1 = *(__vector unsigned char *)
&cq[pos + p2].pkt_info;
cqes[3] = vec_sel(cqes[3], cqe_tmp2, blend_mask);
cqes[2] = vec_sel(cqes[2], cqe_tmp1, blend_mask);
cqe_tmp2 = (__vector unsigned char)vec_vsx_ld(0,
(signed int const *)&cq[pos + p3].csum);
cqe_tmp1 = (__vector unsigned char)vec_vsx_ld(0,
(signed int const *)&cq[pos + p2].csum);
cqes[3] = (__vector unsigned char)
vec_sel((__vector unsigned short)cqes[3],
(__vector unsigned short)cqe_tmp2, cqe_sel_mask1);
cqes[2] = (__vector unsigned char)
vec_sel((__vector unsigned short)cqes[2],
(__vector unsigned short)cqe_tmp1, cqe_sel_mask1);
cqe_tmp2 = (__vector unsigned char)(__vector unsigned long){
*(__rte_aligned(8) unsigned long *)
&cq[pos + p3].rsvd4[2], 0LL};
cqe_tmp1 = (__vector unsigned char)(__vector unsigned long){
*(__rte_aligned(8) unsigned long *)
&cq[pos + p2].rsvd4[2], 0LL};
cqes[3] = (__vector unsigned char)
vec_sel((__vector unsigned short)cqes[3],
(__vector unsigned short)cqe_tmp2,
(__vector unsigned short)cqe_sel_mask2);
cqes[2] = (__vector unsigned char)
vec_sel((__vector unsigned short)cqes[2],
(__vector unsigned short)cqe_tmp1,
(__vector unsigned short)cqe_sel_mask2);
/* C.2 generate final structure for mbuf with swapping bytes. */
pkt_mb3 = vec_perm(cqes[3], zero, shuf_mask);
pkt_mb2 = vec_perm(cqes[2], zero, shuf_mask);
/* C.3 adjust CRC length. */
pkt_mb3 = (__vector unsigned char)
((__vector unsigned short)pkt_mb3 -
(__vector unsigned short)crc_adj);
pkt_mb2 = (__vector unsigned char)
((__vector unsigned short)pkt_mb2 -
(__vector unsigned short)crc_adj);
/* C.4 adjust flow mark. */
pkt_mb3 = (__vector unsigned char)
((__vector unsigned int)pkt_mb3 +
(__vector unsigned int)flow_mark_adj);
pkt_mb2 = (__vector unsigned char)
((__vector unsigned int)pkt_mb2 +
(__vector unsigned int)flow_mark_adj);
/* D.1 fill in mbuf - rx_descriptor_fields1. */
*(__vector unsigned char *)
&pkts[pos + 3]->pkt_len = pkt_mb3;
*(__vector unsigned char *)
&pkts[pos + 2]->pkt_len = pkt_mb2;
/* E.1 extract op_own field. */
op_own_tmp2 = (__vector unsigned char)
vec_mergeh((__vector unsigned int)cqes[2],
(__vector unsigned int)cqes[3]);
/* C.1 load remaining CQE data and extract necessary fields. */
cqe_tmp2 = *(__vector unsigned char *)
&cq[pos + p1].pkt_info;
cqe_tmp1 = *(__vector unsigned char *)
&cq[pos].pkt_info;
cqes[1] = vec_sel(cqes[1], cqe_tmp2, blend_mask);
cqes[0] = vec_sel(cqes[0], cqe_tmp2, blend_mask);
cqe_tmp2 = (__vector unsigned char)vec_vsx_ld(0,
(signed int const *)&cq[pos + p1].csum);
cqe_tmp1 = (__vector unsigned char)vec_vsx_ld(0,
(signed int const *)&cq[pos].csum);
cqes[1] = (__vector unsigned char)
vec_sel((__vector unsigned short)cqes[1],
(__vector unsigned short)cqe_tmp2, cqe_sel_mask1);
cqes[0] = (__vector unsigned char)
vec_sel((__vector unsigned short)cqes[0],
(__vector unsigned short)cqe_tmp1, cqe_sel_mask1);
cqe_tmp2 = (__vector unsigned char)(__vector unsigned long){
*(__rte_aligned(8) unsigned long *)
&cq[pos + p1].rsvd4[2], 0LL};
cqe_tmp1 = (__vector unsigned char)(__vector unsigned long){
*(__rte_aligned(8) unsigned long *)
&cq[pos].rsvd4[2], 0LL};
cqes[1] = (__vector unsigned char)
vec_sel((__vector unsigned short)cqes[1],
(__vector unsigned short)cqe_tmp2, cqe_sel_mask2);
cqes[0] = (__vector unsigned char)
vec_sel((__vector unsigned short)cqes[0],
(__vector unsigned short)cqe_tmp1, cqe_sel_mask2);
/* C.2 generate final structure for mbuf with swapping bytes. */
pkt_mb1 = vec_perm(cqes[1], zero, shuf_mask);
pkt_mb0 = vec_perm(cqes[0], zero, shuf_mask);
/* C.3 adjust CRC length. */
pkt_mb1 = (__vector unsigned char)
((__vector unsigned short)pkt_mb1 -
(__vector unsigned short)crc_adj);
pkt_mb0 = (__vector unsigned char)
((__vector unsigned short)pkt_mb0 -
(__vector unsigned short)crc_adj);
/* C.4 adjust flow mark. */
pkt_mb1 = (__vector unsigned char)
((__vector unsigned int)pkt_mb1 +
(__vector unsigned int)flow_mark_adj);
pkt_mb0 = (__vector unsigned char)
((__vector unsigned int)pkt_mb0 +
(__vector unsigned int)flow_mark_adj);
/* E.1 extract op_own byte. */
op_own_tmp1 = (__vector unsigned char)
vec_mergeh((__vector unsigned int)cqes[0],
(__vector unsigned int)cqes[1]);
op_own = (__vector unsigned char)
vec_mergel((__vector unsigned long)op_own_tmp1,
(__vector unsigned long)op_own_tmp2);
/* D.1 fill in mbuf - rx_descriptor_fields1. */
*(__vector unsigned char *)
&pkts[pos + 1]->pkt_len = pkt_mb1;
*(__vector unsigned char *)
&pkts[pos]->pkt_len = pkt_mb0;
/* E.2 flip owner bit to mark CQEs from last round. */
owner_mask = (__vector unsigned char)
vec_and((__vector unsigned long)op_own,
(__vector unsigned long)owner_check);
if (ownership)
owner_mask = (__vector unsigned char)
vec_xor((__vector unsigned long)owner_mask,
(__vector unsigned long)owner_check);
owner_mask = (__vector unsigned char)
vec_cmpeq((__vector unsigned int)owner_mask,
(__vector unsigned int)owner_check);
owner_mask = (__vector unsigned char)
vec_packs((__vector unsigned int)owner_mask,
(__vector unsigned int)zero);
/* E.3 get mask for invalidated CQEs. */
opcode = (__vector unsigned char)
vec_and((__vector unsigned long)op_own,
(__vector unsigned long)opcode_check);
invalid_mask = (__vector unsigned char)
vec_cmpeq((__vector unsigned int)opcode_check,
(__vector unsigned int)opcode);
invalid_mask = (__vector unsigned char)
vec_packs((__vector unsigned int)invalid_mask,
(__vector unsigned int)zero);
/* E.4 mask out beyond boundary. */
invalid_mask = (__vector unsigned char)
vec_or((__vector unsigned long)invalid_mask,
(__vector unsigned long)mask);
/* E.5 merge invalid_mask with invalid owner. */
invalid_mask = (__vector unsigned char)
vec_or((__vector unsigned long)invalid_mask,
(__vector unsigned long)owner_mask);
/* F.1 find compressed CQE format. */
comp_mask = (__vector unsigned char)
vec_and((__vector unsigned long)op_own,
(__vector unsigned long)format_check);
comp_mask = (__vector unsigned char)
vec_cmpeq((__vector unsigned int)comp_mask,
(__vector unsigned int)format_check);
comp_mask = (__vector unsigned char)
vec_packs((__vector unsigned int)comp_mask,
(__vector unsigned int)zero);
/* F.2 mask out invalid entries. */
comp_mask = (__vector unsigned char)
vec_andc((__vector unsigned long)comp_mask,
(__vector unsigned long)invalid_mask);
comp_idx = ((__vector unsigned long)comp_mask)[0];
/* F.3 get the first compressed CQE. */
comp_idx = comp_idx ? __builtin_ctzll(comp_idx) /
(sizeof(uint16_t) * 8) : MLX5_VPMD_DESCS_PER_LOOP;
/* E.6 mask out entries after the compressed CQE. */
mask = (__vector unsigned char)(__vector unsigned long){
(comp_idx * sizeof(uint16_t) * 8), 0};
lshift = vec_splat((__vector unsigned long)mask, 0);
shmask = vec_cmpgt(shmax, lshift);
mask = (__vector unsigned char)
vec_sl((__vector unsigned long)ones, lshift);
mask = (__vector unsigned char)
vec_sel((__vector unsigned long)shmask,
(__vector unsigned long)mask, shmask);
invalid_mask = (__vector unsigned char)
vec_or((__vector unsigned long)invalid_mask,
(__vector unsigned long)mask);
/* E.7 count non-compressed valid CQEs. */
n = ((__vector unsigned long)invalid_mask)[0];
n = n ? __builtin_ctzll(n) / (sizeof(uint16_t) * 8) :
MLX5_VPMD_DESCS_PER_LOOP;
nocmp_n += n;
/* D.2 get the final invalid mask. */
mask = (__vector unsigned char)(__vector unsigned long){
(n * sizeof(uint16_t) * 8), 0};
lshift = vec_splat((__vector unsigned long)mask, 0);
shmask = vec_cmpgt(shmax, lshift);
mask = (__vector unsigned char)
vec_sl((__vector unsigned long)ones, lshift);
mask = (__vector unsigned char)
vec_sel((__vector unsigned long)shmask,
(__vector unsigned long)mask, shmask);
invalid_mask = (__vector unsigned char)
vec_or((__vector unsigned long)invalid_mask,
(__vector unsigned long)mask);
/* D.3 check error in opcode. */
opcode = (__vector unsigned char)
vec_cmpeq((__vector unsigned int)resp_err_check,
(__vector unsigned int)opcode);
opcode = (__vector unsigned char)
vec_packs((__vector unsigned int)opcode,
(__vector unsigned int)zero);
opcode = (__vector unsigned char)
vec_andc((__vector unsigned long)opcode,
(__vector unsigned long)invalid_mask);
/* D.4 mark if any error is set */
*err |= ((__vector unsigned long)opcode)[0];
/* D.5 fill in mbuf - rearm_data and packet_type. */
rxq_cq_to_ptype_oflags_v(rxq, cqes, opcode, &pkts[pos]);
if (unlikely(rxq->shared)) {
pkts[pos]->port = cq[pos].user_index_low;
pkts[pos + p1]->port = cq[pos + p1].user_index_low;
pkts[pos + p2]->port = cq[pos + p2].user_index_low;
pkts[pos + p3]->port = cq[pos + p3].user_index_low;
}
if (rxq->hw_timestamp) {
int offset = rxq->timestamp_offset;
if (rxq->rt_timestamp) {
struct mlx5_dev_ctx_shared *sh = rxq->sh;
uint64_t ts;
ts = rte_be_to_cpu_64(cq[pos].timestamp);
mlx5_timestamp_set(pkts[pos], offset,
mlx5_txpp_convert_rx_ts(sh, ts));
ts = rte_be_to_cpu_64(cq[pos + p1].timestamp);
mlx5_timestamp_set(pkts[pos + 1], offset,
mlx5_txpp_convert_rx_ts(sh, ts));
ts = rte_be_to_cpu_64(cq[pos + p2].timestamp);
mlx5_timestamp_set(pkts[pos + 2], offset,
mlx5_txpp_convert_rx_ts(sh, ts));
ts = rte_be_to_cpu_64(cq[pos + p3].timestamp);
mlx5_timestamp_set(pkts[pos + 3], offset,
mlx5_txpp_convert_rx_ts(sh, ts));
} else {
mlx5_timestamp_set(pkts[pos], offset,
rte_be_to_cpu_64(cq[pos].timestamp));
mlx5_timestamp_set(pkts[pos + 1], offset,
rte_be_to_cpu_64(cq[pos + p1].timestamp));
mlx5_timestamp_set(pkts[pos + 2], offset,
rte_be_to_cpu_64(cq[pos + p2].timestamp));
mlx5_timestamp_set(pkts[pos + 3], offset,
rte_be_to_cpu_64(cq[pos + p3].timestamp));
}
}
if (rxq->dynf_meta) {
uint64_t flag = rxq->flow_meta_mask;
int32_t offs = rxq->flow_meta_offset;
uint32_t mask = rxq->flow_meta_port_mask;
uint32_t metadata;
/* This code is subject for further optimization. */
metadata = rte_be_to_cpu_32
(cq[pos].flow_table_metadata) & mask;
*RTE_MBUF_DYNFIELD(pkts[pos], offs, uint32_t *) =
metadata;
pkts[pos]->ol_flags |= metadata ? flag : 0ULL;
metadata = rte_be_to_cpu_32
(cq[pos + 1].flow_table_metadata) & mask;
*RTE_MBUF_DYNFIELD(pkts[pos + 1], offs, uint32_t *) =
metadata;
pkts[pos + 1]->ol_flags |= metadata ? flag : 0ULL;
metadata = rte_be_to_cpu_32
(cq[pos + 2].flow_table_metadata) & mask;
*RTE_MBUF_DYNFIELD(pkts[pos + 2], offs, uint32_t *) =
metadata;
pkts[pos + 2]->ol_flags |= metadata ? flag : 0ULL;
metadata = rte_be_to_cpu_32
(cq[pos + 3].flow_table_metadata) & mask;
*RTE_MBUF_DYNFIELD(pkts[pos + 3], offs, uint32_t *) =
metadata;
pkts[pos + 3]->ol_flags |= metadata ? flag : 0ULL;
}
#ifdef MLX5_PMD_SOFT_COUNTERS
/* Add up received bytes count. */
byte_cnt = vec_perm(op_own, zero, len_shuf_mask);
byte_cnt = (__vector unsigned char)
vec_andc((__vector unsigned long)byte_cnt,
(__vector unsigned long)invalid_mask);
left = vec_perm((__vector unsigned short)byte_cnt,
(__vector unsigned short)zero, lower_half);
right = vec_perm((__vector unsigned short)byte_cnt,
(__vector unsigned short)zero, upper_half);
byte_cnt = (__vector unsigned char)vec_add(left, right);
left = vec_perm((__vector unsigned short)byte_cnt,
(__vector unsigned short)zero, lower_half);
right = vec_perm((__vector unsigned short)byte_cnt,
(__vector unsigned short)zero, upper_half);
byte_cnt = (__vector unsigned char)vec_add(left, right);
rcvd_byte += ((__vector unsigned long)byte_cnt)[0];
#endif
/*
* Break the loop unless more valid CQE is expected, or if
* there's a compressed CQE.
*/
if (n != MLX5_VPMD_DESCS_PER_LOOP)
break;
}
#ifdef MLX5_PMD_SOFT_COUNTERS
rxq->stats.ipackets += nocmp_n;
rxq->stats.ibytes += rcvd_byte;
#endif
if (comp_idx == n)
*comp = comp_idx;
return nocmp_n;
}
#endif /* RTE_PMD_MLX5_RXTX_VEC_ALTIVEC_H_ */
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