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numam-dpdk/drivers/net/cnxk/cn10k_tx.h
Sunil Kumar Kori 76dff63874 net/cnxk: support base PTP timesync 
Base PTP timesync support is added for cn9k and cn10k platforms.

Signed-off-by: Sunil Kumar Kori <skori@marvell.com>
2021-06-30 02:51:28 +02:00

1606 lines
48 KiB
C
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/* SPDX-License-Identifier: BSD-3-Clause
* Copyright(C) 2021 Marvell.
*/
#ifndef __CN10K_TX_H__
#define __CN10K_TX_H__
#include <rte_vect.h>
#define NIX_TX_OFFLOAD_NONE (0)
#define NIX_TX_OFFLOAD_L3_L4_CSUM_F BIT(0)
#define NIX_TX_OFFLOAD_OL3_OL4_CSUM_F BIT(1)
#define NIX_TX_OFFLOAD_VLAN_QINQ_F BIT(2)
#define NIX_TX_OFFLOAD_MBUF_NOFF_F BIT(3)
#define NIX_TX_OFFLOAD_TSO_F BIT(4)
#define NIX_TX_OFFLOAD_TSTAMP_F BIT(5)
/* Flags to control xmit_prepare function.
* Defining it from backwards to denote its been
* not used as offload flags to pick function
*/
#define NIX_TX_MULTI_SEG_F BIT(15)
#define NIX_TX_NEED_SEND_HDR_W1 \
(NIX_TX_OFFLOAD_L3_L4_CSUM_F | NIX_TX_OFFLOAD_OL3_OL4_CSUM_F | \
NIX_TX_OFFLOAD_VLAN_QINQ_F | NIX_TX_OFFLOAD_TSO_F)
#define NIX_TX_NEED_EXT_HDR \
(NIX_TX_OFFLOAD_VLAN_QINQ_F | NIX_TX_OFFLOAD_TSTAMP_F | \
NIX_TX_OFFLOAD_TSO_F)
#define NIX_XMIT_FC_OR_RETURN(txq, pkts) \
do { \
/* Cached value is low, Update the fc_cache_pkts */ \
if (unlikely((txq)->fc_cache_pkts < (pkts))) { \
/* Multiply with sqe_per_sqb to express in pkts */ \
(txq)->fc_cache_pkts = \
((txq)->nb_sqb_bufs_adj - *(txq)->fc_mem) \
<< (txq)->sqes_per_sqb_log2; \
/* Check it again for the room */ \
if (unlikely((txq)->fc_cache_pkts < (pkts))) \
return 0; \
} \
} while (0)
#define LMT_OFF(lmt_addr, lmt_num, offset) \
(void *)((lmt_addr) + ((lmt_num) << ROC_LMT_LINE_SIZE_LOG2) + (offset))
/* Function to determine no of tx subdesc required in case ext
* sub desc is enabled.
*/
static __rte_always_inline int
cn10k_nix_tx_ext_subs(const uint16_t flags)
{
return (flags & NIX_TX_OFFLOAD_TSTAMP_F)
? 2
: ((flags &
(NIX_TX_OFFLOAD_VLAN_QINQ_F | NIX_TX_OFFLOAD_TSO_F))
? 1
: 0);
}
static __rte_always_inline uint8_t
cn10k_nix_pkts_per_vec_brst(const uint16_t flags)
{
RTE_SET_USED(flags);
/* We can pack up to 4 packets per LMTLINE if there are no offloads. */
return 4 << ROC_LMT_LINES_PER_CORE_LOG2;
}
static __rte_always_inline uint64_t
cn10k_nix_tx_steor_data(const uint16_t flags)
{
const uint64_t dw_m1 = cn10k_nix_tx_ext_subs(flags) + 1;
uint64_t data;
/* This will be moved to addr area */
data = dw_m1;
/* 15 vector sizes for single seg */
data |= dw_m1 << 19;
data |= dw_m1 << 22;
data |= dw_m1 << 25;
data |= dw_m1 << 28;
data |= dw_m1 << 31;
data |= dw_m1 << 34;
data |= dw_m1 << 37;
data |= dw_m1 << 40;
data |= dw_m1 << 43;
data |= dw_m1 << 46;
data |= dw_m1 << 49;
data |= dw_m1 << 52;
data |= dw_m1 << 55;
data |= dw_m1 << 58;
data |= dw_m1 << 61;
return data;
}
static __rte_always_inline uint64_t
cn10k_nix_tx_steor_vec_data(const uint16_t flags)
{
const uint64_t dw_m1 = 0x7;
uint64_t data;
RTE_SET_USED(flags);
/* This will be moved to addr area */
data = dw_m1;
/* 15 vector sizes for single seg */
data |= dw_m1 << 19;
data |= dw_m1 << 22;
data |= dw_m1 << 25;
data |= dw_m1 << 28;
data |= dw_m1 << 31;
data |= dw_m1 << 34;
data |= dw_m1 << 37;
data |= dw_m1 << 40;
data |= dw_m1 << 43;
data |= dw_m1 << 46;
data |= dw_m1 << 49;
data |= dw_m1 << 52;
data |= dw_m1 << 55;
data |= dw_m1 << 58;
data |= dw_m1 << 61;
return data;
}
static __rte_always_inline void
cn10k_nix_tx_skeleton(const struct cn10k_eth_txq *txq, uint64_t *cmd,
const uint16_t flags)
{
/* Send hdr */
cmd[0] = txq->send_hdr_w0;
cmd[1] = 0;
cmd += 2;
/* Send ext if present */
if (flags & NIX_TX_NEED_EXT_HDR) {
*(__uint128_t *)cmd = *(const __uint128_t *)txq->cmd;
cmd += 2;
}
/* Send sg */
cmd[0] = txq->sg_w0;
cmd[1] = 0;
}
static __rte_always_inline void
cn10k_nix_xmit_prepare_tso(struct rte_mbuf *m, const uint64_t flags)
{
uint64_t mask, ol_flags = m->ol_flags;
if (flags & NIX_TX_OFFLOAD_TSO_F && (ol_flags & PKT_TX_TCP_SEG)) {
uintptr_t mdata = rte_pktmbuf_mtod(m, uintptr_t);
uint16_t *iplen, *oiplen, *oudplen;
uint16_t lso_sb, paylen;
mask = -!!(ol_flags & (PKT_TX_OUTER_IPV4 | PKT_TX_OUTER_IPV6));
lso_sb = (mask & (m->outer_l2_len + m->outer_l3_len)) +
m->l2_len + m->l3_len + m->l4_len;
/* Reduce payload len from base headers */
paylen = m->pkt_len - lso_sb;
/* Get iplen position assuming no tunnel hdr */
iplen = (uint16_t *)(mdata + m->l2_len +
(2 << !!(ol_flags & PKT_TX_IPV6)));
/* Handle tunnel tso */
if ((flags & NIX_TX_OFFLOAD_OL3_OL4_CSUM_F) &&
(ol_flags & PKT_TX_TUNNEL_MASK)) {
const uint8_t is_udp_tun =
(CNXK_NIX_UDP_TUN_BITMASK >>
((ol_flags & PKT_TX_TUNNEL_MASK) >> 45)) &
0x1;
oiplen = (uint16_t *)(mdata + m->outer_l2_len +
(2 << !!(ol_flags &
PKT_TX_OUTER_IPV6)));
*oiplen = rte_cpu_to_be_16(rte_be_to_cpu_16(*oiplen) -
paylen);
/* Update format for UDP tunneled packet */
if (is_udp_tun) {
oudplen = (uint16_t *)(mdata + m->outer_l2_len +
m->outer_l3_len + 4);
*oudplen = rte_cpu_to_be_16(
rte_be_to_cpu_16(*oudplen) - paylen);
}
/* Update iplen position to inner ip hdr */
iplen = (uint16_t *)(mdata + lso_sb - m->l3_len -
m->l4_len +
(2 << !!(ol_flags & PKT_TX_IPV6)));
}
*iplen = rte_cpu_to_be_16(rte_be_to_cpu_16(*iplen) - paylen);
}
}
static __rte_always_inline void
cn10k_nix_xmit_prepare(struct rte_mbuf *m, uint64_t *cmd, uintptr_t lmt_addr,
const uint16_t flags, const uint64_t lso_tun_fmt)
{
struct nix_send_ext_s *send_hdr_ext;
struct nix_send_hdr_s *send_hdr;
uint64_t ol_flags = 0, mask;
union nix_send_hdr_w1_u w1;
union nix_send_sg_s *sg;
send_hdr = (struct nix_send_hdr_s *)cmd;
if (flags & NIX_TX_NEED_EXT_HDR) {
send_hdr_ext = (struct nix_send_ext_s *)(cmd + 2);
sg = (union nix_send_sg_s *)(cmd + 4);
/* Clear previous markings */
send_hdr_ext->w0.lso = 0;
send_hdr_ext->w1.u = 0;
} else {
sg = (union nix_send_sg_s *)(cmd + 2);
}
if (flags & NIX_TX_NEED_SEND_HDR_W1) {
ol_flags = m->ol_flags;
w1.u = 0;
}
if (!(flags & NIX_TX_MULTI_SEG_F)) {
send_hdr->w0.total = m->data_len;
send_hdr->w0.aura =
roc_npa_aura_handle_to_aura(m->pool->pool_id);
}
/*
* L3type: 2 => IPV4
* 3 => IPV4 with csum
* 4 => IPV6
* L3type and L3ptr needs to be set for either
* L3 csum or L4 csum or LSO
*
*/
if ((flags & NIX_TX_OFFLOAD_OL3_OL4_CSUM_F) &&
(flags & NIX_TX_OFFLOAD_L3_L4_CSUM_F)) {
const uint8_t csum = !!(ol_flags & PKT_TX_OUTER_UDP_CKSUM);
const uint8_t ol3type =
((!!(ol_flags & PKT_TX_OUTER_IPV4)) << 1) +
((!!(ol_flags & PKT_TX_OUTER_IPV6)) << 2) +
!!(ol_flags & PKT_TX_OUTER_IP_CKSUM);
/* Outer L3 */
w1.ol3type = ol3type;
mask = 0xffffull << ((!!ol3type) << 4);
w1.ol3ptr = ~mask & m->outer_l2_len;
w1.ol4ptr = ~mask & (w1.ol3ptr + m->outer_l3_len);
/* Outer L4 */
w1.ol4type = csum + (csum << 1);
/* Inner L3 */
w1.il3type = ((!!(ol_flags & PKT_TX_IPV4)) << 1) +
((!!(ol_flags & PKT_TX_IPV6)) << 2);
w1.il3ptr = w1.ol4ptr + m->l2_len;
w1.il4ptr = w1.il3ptr + m->l3_len;
/* Increment it by 1 if it is IPV4 as 3 is with csum */
w1.il3type = w1.il3type + !!(ol_flags & PKT_TX_IP_CKSUM);
/* Inner L4 */
w1.il4type = (ol_flags & PKT_TX_L4_MASK) >> 52;
/* In case of no tunnel header use only
* shift IL3/IL4 fields a bit to use
* OL3/OL4 for header checksum
*/
mask = !ol3type;
w1.u = ((w1.u & 0xFFFFFFFF00000000) >> (mask << 3)) |
((w1.u & 0X00000000FFFFFFFF) >> (mask << 4));
} else if (flags & NIX_TX_OFFLOAD_OL3_OL4_CSUM_F) {
const uint8_t csum = !!(ol_flags & PKT_TX_OUTER_UDP_CKSUM);
const uint8_t outer_l2_len = m->outer_l2_len;
/* Outer L3 */
w1.ol3ptr = outer_l2_len;
w1.ol4ptr = outer_l2_len + m->outer_l3_len;
/* Increment it by 1 if it is IPV4 as 3 is with csum */
w1.ol3type = ((!!(ol_flags & PKT_TX_OUTER_IPV4)) << 1) +
((!!(ol_flags & PKT_TX_OUTER_IPV6)) << 2) +
!!(ol_flags & PKT_TX_OUTER_IP_CKSUM);
/* Outer L4 */
w1.ol4type = csum + (csum << 1);
} else if (flags & NIX_TX_OFFLOAD_L3_L4_CSUM_F) {
const uint8_t l2_len = m->l2_len;
/* Always use OLXPTR and OLXTYPE when only
* when one header is present
*/
/* Inner L3 */
w1.ol3ptr = l2_len;
w1.ol4ptr = l2_len + m->l3_len;
/* Increment it by 1 if it is IPV4 as 3 is with csum */
w1.ol3type = ((!!(ol_flags & PKT_TX_IPV4)) << 1) +
((!!(ol_flags & PKT_TX_IPV6)) << 2) +
!!(ol_flags & PKT_TX_IP_CKSUM);
/* Inner L4 */
w1.ol4type = (ol_flags & PKT_TX_L4_MASK) >> 52;
}
if (flags & NIX_TX_NEED_EXT_HDR && flags & NIX_TX_OFFLOAD_VLAN_QINQ_F) {
send_hdr_ext->w1.vlan1_ins_ena = !!(ol_flags & PKT_TX_VLAN);
/* HW will update ptr after vlan0 update */
send_hdr_ext->w1.vlan1_ins_ptr = 12;
send_hdr_ext->w1.vlan1_ins_tci = m->vlan_tci;
send_hdr_ext->w1.vlan0_ins_ena = !!(ol_flags & PKT_TX_QINQ);
/* 2B before end of l2 header */
send_hdr_ext->w1.vlan0_ins_ptr = 12;
send_hdr_ext->w1.vlan0_ins_tci = m->vlan_tci_outer;
}
if (flags & NIX_TX_OFFLOAD_TSO_F && (ol_flags & PKT_TX_TCP_SEG)) {
uint16_t lso_sb;
uint64_t mask;
mask = -(!w1.il3type);
lso_sb = (mask & w1.ol4ptr) + (~mask & w1.il4ptr) + m->l4_len;
send_hdr_ext->w0.lso_sb = lso_sb;
send_hdr_ext->w0.lso = 1;
send_hdr_ext->w0.lso_mps = m->tso_segsz;
send_hdr_ext->w0.lso_format =
NIX_LSO_FORMAT_IDX_TSOV4 + !!(ol_flags & PKT_TX_IPV6);
w1.ol4type = NIX_SENDL4TYPE_TCP_CKSUM;
/* Handle tunnel tso */
if ((flags & NIX_TX_OFFLOAD_OL3_OL4_CSUM_F) &&
(ol_flags & PKT_TX_TUNNEL_MASK)) {
const uint8_t is_udp_tun =
(CNXK_NIX_UDP_TUN_BITMASK >>
((ol_flags & PKT_TX_TUNNEL_MASK) >> 45)) &
0x1;
uint8_t shift = is_udp_tun ? 32 : 0;
shift += (!!(ol_flags & PKT_TX_OUTER_IPV6) << 4);
shift += (!!(ol_flags & PKT_TX_IPV6) << 3);
w1.il4type = NIX_SENDL4TYPE_TCP_CKSUM;
w1.ol4type = is_udp_tun ? NIX_SENDL4TYPE_UDP_CKSUM : 0;
/* Update format for UDP tunneled packet */
send_hdr_ext->w0.lso_format = (lso_tun_fmt >> shift);
}
}
if (flags & NIX_TX_NEED_SEND_HDR_W1)
send_hdr->w1.u = w1.u;
if (!(flags & NIX_TX_MULTI_SEG_F)) {
sg->seg1_size = m->data_len;
*(rte_iova_t *)(sg + 1) = rte_mbuf_data_iova(m);
if (flags & NIX_TX_OFFLOAD_MBUF_NOFF_F) {
/* DF bit = 1 if refcount of current mbuf or parent mbuf
* is greater than 1
* DF bit = 0 otherwise
*/
send_hdr->w0.df = cnxk_nix_prefree_seg(m);
}
/* Mark mempool object as "put" since it is freed by NIX */
if (!send_hdr->w0.df)
__mempool_check_cookies(m->pool, (void **)&m, 1, 0);
}
/* With minimal offloads, 'cmd' being local could be optimized out to
* registers. In other cases, 'cmd' will be in stack. Intent is
* 'cmd' stores content from txq->cmd which is copied only once.
*/
*((struct nix_send_hdr_s *)lmt_addr) = *send_hdr;
lmt_addr += 16;
if (flags & NIX_TX_NEED_EXT_HDR) {
*((struct nix_send_ext_s *)lmt_addr) = *send_hdr_ext;
lmt_addr += 16;
}
/* In case of multi-seg, sg template is stored here */
*((union nix_send_sg_s *)lmt_addr) = *sg;
*(rte_iova_t *)(lmt_addr + 8) = *(rte_iova_t *)(sg + 1);
}
static __rte_always_inline void
cn10k_nix_xmit_prepare_tstamp(uintptr_t lmt_addr, const uint64_t *cmd,
const uint64_t ol_flags, const uint16_t no_segdw,
const uint16_t flags)
{
if (flags & NIX_TX_OFFLOAD_TSTAMP_F) {
const uint8_t is_ol_tstamp = !(ol_flags & PKT_TX_IEEE1588_TMST);
struct nix_send_ext_s *send_hdr_ext =
(struct nix_send_ext_s *)lmt_addr + 16;
uint64_t *lmt = (uint64_t *)lmt_addr;
uint16_t off = (no_segdw - 1) << 1;
struct nix_send_mem_s *send_mem;
send_mem = (struct nix_send_mem_s *)(lmt + off);
send_hdr_ext->w0.subdc = NIX_SUBDC_EXT;
send_hdr_ext->w0.tstmp = 1;
if (flags & NIX_TX_MULTI_SEG_F) {
/* Retrieving the default desc values */
lmt[off] = cmd[2];
/* Using compiler barier to avoid voilation of C
* aliasing rules.
*/
rte_compiler_barrier();
}
/* Packets for which PKT_TX_IEEE1588_TMST is not set, tx tstamp
* should not be recorded, hence changing the alg type to
* NIX_SENDMEMALG_SET and also changing send mem addr field to
* next 8 bytes as it corrpt the actual tx tstamp registered
* address.
*/
send_mem->w0.subdc = NIX_SUBDC_MEM;
send_mem->w0.alg = NIX_SENDMEMALG_SETTSTMP - (is_ol_tstamp);
send_mem->addr =
(rte_iova_t)(((uint64_t *)cmd[3]) + is_ol_tstamp);
}
}
static __rte_always_inline uint16_t
cn10k_nix_prepare_mseg(struct rte_mbuf *m, uint64_t *cmd, const uint16_t flags)
{
struct nix_send_hdr_s *send_hdr;
union nix_send_sg_s *sg;
struct rte_mbuf *m_next;
uint64_t *slist, sg_u;
uint64_t nb_segs;
uint64_t segdw;
uint8_t off, i;
send_hdr = (struct nix_send_hdr_s *)cmd;
send_hdr->w0.total = m->pkt_len;
send_hdr->w0.aura = roc_npa_aura_handle_to_aura(m->pool->pool_id);
if (flags & NIX_TX_NEED_EXT_HDR)
off = 2;
else
off = 0;
sg = (union nix_send_sg_s *)&cmd[2 + off];
/* Clear sg->u header before use */
sg->u &= 0xFC00000000000000;
sg_u = sg->u;
slist = &cmd[3 + off];
i = 0;
nb_segs = m->nb_segs;
/* Fill mbuf segments */
do {
m_next = m->next;
sg_u = sg_u | ((uint64_t)m->data_len << (i << 4));
*slist = rte_mbuf_data_iova(m);
/* Set invert df if buffer is not to be freed by H/W */
if (flags & NIX_TX_OFFLOAD_MBUF_NOFF_F)
sg_u |= (cnxk_nix_prefree_seg(m) << (i + 55));
/* Mark mempool object as "put" since it is freed by NIX
*/
#ifdef RTE_LIBRTE_MEMPOOL_DEBUG
if (!(sg_u & (1ULL << (i + 55))))
__mempool_check_cookies(m->pool, (void **)&m, 1, 0);
#endif
slist++;
i++;
nb_segs--;
if (i > 2 && nb_segs) {
i = 0;
/* Next SG subdesc */
*(uint64_t *)slist = sg_u & 0xFC00000000000000;
sg->u = sg_u;
sg->segs = 3;
sg = (union nix_send_sg_s *)slist;
sg_u = sg->u;
slist++;
}
m = m_next;
} while (nb_segs);
sg->u = sg_u;
sg->segs = i;
segdw = (uint64_t *)slist - (uint64_t *)&cmd[2 + off];
/* Roundup extra dwords to multiple of 2 */
segdw = (segdw >> 1) + (segdw & 0x1);
/* Default dwords */
segdw += (off >> 1) + 1 + !!(flags & NIX_TX_OFFLOAD_TSTAMP_F);
send_hdr->w0.sizem1 = segdw - 1;
return segdw;
}
static __rte_always_inline uint16_t
cn10k_nix_xmit_pkts(void *tx_queue, struct rte_mbuf **tx_pkts, uint16_t pkts,
uint64_t *cmd, const uint16_t flags)
{
struct cn10k_eth_txq *txq = tx_queue;
const rte_iova_t io_addr = txq->io_addr;
uintptr_t pa, lmt_addr = txq->lmt_base;
uint16_t lmt_id, burst, left, i;
uint64_t lso_tun_fmt;
uint64_t data;
NIX_XMIT_FC_OR_RETURN(txq, pkts);
/* Get cmd skeleton */
cn10k_nix_tx_skeleton(txq, cmd, flags);
/* Reduce the cached count */
txq->fc_cache_pkts -= pkts;
if (flags & NIX_TX_OFFLOAD_TSO_F)
lso_tun_fmt = txq->lso_tun_fmt;
/* Get LMT base address and LMT ID as lcore id */
ROC_LMT_BASE_ID_GET(lmt_addr, lmt_id);
left = pkts;
again:
burst = left > 32 ? 32 : left;
for (i = 0; i < burst; i++) {
/* Perform header writes for TSO, barrier at
* lmt steorl will suffice.
*/
if (flags & NIX_TX_OFFLOAD_TSO_F)
cn10k_nix_xmit_prepare_tso(tx_pkts[i], flags);
cn10k_nix_xmit_prepare(tx_pkts[i], cmd, lmt_addr, flags,
lso_tun_fmt);
cn10k_nix_xmit_prepare_tstamp(lmt_addr, &txq->cmd[0],
tx_pkts[i]->ol_flags, 4, flags);
lmt_addr += (1ULL << ROC_LMT_LINE_SIZE_LOG2);
}
/* Trigger LMTST */
if (burst > 16) {
data = cn10k_nix_tx_steor_data(flags);
pa = io_addr | (data & 0x7) << 4;
data &= ~0x7ULL;
data |= (15ULL << 12);
data |= (uint64_t)lmt_id;
/* STEOR0 */
roc_lmt_submit_steorl(data, pa);
data = cn10k_nix_tx_steor_data(flags);
pa = io_addr | (data & 0x7) << 4;
data &= ~0x7ULL;
data |= ((uint64_t)(burst - 17)) << 12;
data |= (uint64_t)(lmt_id + 16);
/* STEOR1 */
roc_lmt_submit_steorl(data, pa);
} else if (burst) {
data = cn10k_nix_tx_steor_data(flags);
pa = io_addr | (data & 0x7) << 4;
data &= ~0x7ULL;
data |= ((uint64_t)(burst - 1)) << 12;
data |= lmt_id;
/* STEOR0 */
roc_lmt_submit_steorl(data, pa);
}
left -= burst;
rte_io_wmb();
if (left) {
/* Start processing another burst */
tx_pkts += burst;
/* Reset lmt base addr */
lmt_addr -= (1ULL << ROC_LMT_LINE_SIZE_LOG2);
lmt_addr &= (~(BIT_ULL(ROC_LMT_BASE_PER_CORE_LOG2) - 1));
goto again;
}
return pkts;
}
static __rte_always_inline uint16_t
cn10k_nix_xmit_pkts_mseg(void *tx_queue, struct rte_mbuf **tx_pkts,
uint16_t pkts, uint64_t *cmd, const uint16_t flags)
{
struct cn10k_eth_txq *txq = tx_queue;
uintptr_t pa0, pa1, lmt_addr = txq->lmt_base;
const rte_iova_t io_addr = txq->io_addr;
uint16_t segdw, lmt_id, burst, left, i;
uint64_t data0, data1;
uint64_t lso_tun_fmt;
__uint128_t data128;
uint16_t shft;
NIX_XMIT_FC_OR_RETURN(txq, pkts);
cn10k_nix_tx_skeleton(txq, cmd, flags);
/* Reduce the cached count */
txq->fc_cache_pkts -= pkts;
if (flags & NIX_TX_OFFLOAD_TSO_F)
lso_tun_fmt = txq->lso_tun_fmt;
/* Get LMT base address and LMT ID as lcore id */
ROC_LMT_BASE_ID_GET(lmt_addr, lmt_id);
left = pkts;
again:
burst = left > 32 ? 32 : left;
shft = 16;
data128 = 0;
for (i = 0; i < burst; i++) {
/* Perform header writes for TSO, barrier at
* lmt steorl will suffice.
*/
if (flags & NIX_TX_OFFLOAD_TSO_F)
cn10k_nix_xmit_prepare_tso(tx_pkts[i], flags);
cn10k_nix_xmit_prepare(tx_pkts[i], cmd, lmt_addr, flags,
lso_tun_fmt);
/* Store sg list directly on lmt line */
segdw = cn10k_nix_prepare_mseg(tx_pkts[i], (uint64_t *)lmt_addr,
flags);
cn10k_nix_xmit_prepare_tstamp(lmt_addr, &txq->cmd[0],
tx_pkts[i]->ol_flags, segdw,
flags);
lmt_addr += (1ULL << ROC_LMT_LINE_SIZE_LOG2);
data128 |= (((__uint128_t)(segdw - 1)) << shft);
shft += 3;
}
data0 = (uint64_t)data128;
data1 = (uint64_t)(data128 >> 64);
/* Make data0 similar to data1 */
data0 >>= 16;
/* Trigger LMTST */
if (burst > 16) {
pa0 = io_addr | (data0 & 0x7) << 4;
data0 &= ~0x7ULL;
/* Move lmtst1..15 sz to bits 63:19 */
data0 <<= 16;
data0 |= (15ULL << 12);
data0 |= (uint64_t)lmt_id;
/* STEOR0 */
roc_lmt_submit_steorl(data0, pa0);
pa1 = io_addr | (data1 & 0x7) << 4;
data1 &= ~0x7ULL;
data1 <<= 16;
data1 |= ((uint64_t)(burst - 17)) << 12;
data1 |= (uint64_t)(lmt_id + 16);
/* STEOR1 */
roc_lmt_submit_steorl(data1, pa1);
} else if (burst) {
pa0 = io_addr | (data0 & 0x7) << 4;
data0 &= ~0x7ULL;
/* Move lmtst1..15 sz to bits 63:19 */
data0 <<= 16;
data0 |= ((burst - 1) << 12);
data0 |= (uint64_t)lmt_id;
/* STEOR0 */
roc_lmt_submit_steorl(data0, pa0);
}
left -= burst;
rte_io_wmb();
if (left) {
/* Start processing another burst */
tx_pkts += burst;
/* Reset lmt base addr */
lmt_addr -= (1ULL << ROC_LMT_LINE_SIZE_LOG2);
lmt_addr &= (~(BIT_ULL(ROC_LMT_BASE_PER_CORE_LOG2) - 1));
goto again;
}
return pkts;
}
#if defined(RTE_ARCH_ARM64)
#define NIX_DESCS_PER_LOOP 4
static __rte_always_inline uint16_t
cn10k_nix_xmit_pkts_vector(void *tx_queue, struct rte_mbuf **tx_pkts,
uint16_t pkts, uint64_t *cmd, const uint16_t flags)
{
uint64x2_t dataoff_iova0, dataoff_iova1, dataoff_iova2, dataoff_iova3;
uint64x2_t len_olflags0, len_olflags1, len_olflags2, len_olflags3;
uint64x2_t cmd0[NIX_DESCS_PER_LOOP], cmd1[NIX_DESCS_PER_LOOP];
uint64_t *mbuf0, *mbuf1, *mbuf2, *mbuf3, data, pa;
uint64x2_t senddesc01_w0, senddesc23_w0;
uint64x2_t senddesc01_w1, senddesc23_w1;
uint16_t left, scalar, burst, i, lmt_id;
uint64x2_t sgdesc01_w0, sgdesc23_w0;
uint64x2_t sgdesc01_w1, sgdesc23_w1;
struct cn10k_eth_txq *txq = tx_queue;
uintptr_t laddr = txq->lmt_base;
rte_iova_t io_addr = txq->io_addr;
uint64x2_t ltypes01, ltypes23;
uint64x2_t xtmp128, ytmp128;
uint64x2_t xmask01, xmask23;
uint8_t lnum;
NIX_XMIT_FC_OR_RETURN(txq, pkts);
scalar = pkts & (NIX_DESCS_PER_LOOP - 1);
pkts = RTE_ALIGN_FLOOR(pkts, NIX_DESCS_PER_LOOP);
/* Reduce the cached count */
txq->fc_cache_pkts -= pkts;
senddesc01_w0 = vld1q_dup_u64(&txq->send_hdr_w0);
senddesc23_w0 = senddesc01_w0;
senddesc01_w1 = vdupq_n_u64(0);
senddesc23_w1 = senddesc01_w1;
sgdesc01_w0 = vld1q_dup_u64(&txq->sg_w0);
sgdesc23_w0 = sgdesc01_w0;
/* Get LMT base address and LMT ID as lcore id */
ROC_LMT_BASE_ID_GET(laddr, lmt_id);
left = pkts;
again:
/* Number of packets to prepare depends on offloads enabled. */
burst = left > cn10k_nix_pkts_per_vec_brst(flags) ?
cn10k_nix_pkts_per_vec_brst(flags) :
left;
lnum = 0;
for (i = 0; i < burst; i += NIX_DESCS_PER_LOOP) {
/* Clear lower 32bit of SEND_HDR_W0 and SEND_SG_W0 */
senddesc01_w0 =
vbicq_u64(senddesc01_w0, vdupq_n_u64(0xFFFFFFFF));
sgdesc01_w0 = vbicq_u64(sgdesc01_w0, vdupq_n_u64(0xFFFFFFFF));
senddesc23_w0 = senddesc01_w0;
sgdesc23_w0 = sgdesc01_w0;
/* Move mbufs to iova */
mbuf0 = (uint64_t *)tx_pkts[0];
mbuf1 = (uint64_t *)tx_pkts[1];
mbuf2 = (uint64_t *)tx_pkts[2];
mbuf3 = (uint64_t *)tx_pkts[3];
mbuf0 = (uint64_t *)((uintptr_t)mbuf0 +
offsetof(struct rte_mbuf, buf_iova));
mbuf1 = (uint64_t *)((uintptr_t)mbuf1 +
offsetof(struct rte_mbuf, buf_iova));
mbuf2 = (uint64_t *)((uintptr_t)mbuf2 +
offsetof(struct rte_mbuf, buf_iova));
mbuf3 = (uint64_t *)((uintptr_t)mbuf3 +
offsetof(struct rte_mbuf, buf_iova));
/*
* Get mbuf's, olflags, iova, pktlen, dataoff
* dataoff_iovaX.D[0] = iova,
* dataoff_iovaX.D[1](15:0) = mbuf->dataoff
* len_olflagsX.D[0] = ol_flags,
* len_olflagsX.D[1](63:32) = mbuf->pkt_len
*/
dataoff_iova0 = vld1q_u64(mbuf0);
len_olflags0 = vld1q_u64(mbuf0 + 2);
dataoff_iova1 = vld1q_u64(mbuf1);
len_olflags1 = vld1q_u64(mbuf1 + 2);
dataoff_iova2 = vld1q_u64(mbuf2);
len_olflags2 = vld1q_u64(mbuf2 + 2);
dataoff_iova3 = vld1q_u64(mbuf3);
len_olflags3 = vld1q_u64(mbuf3 + 2);
/* Move mbufs to point pool */
mbuf0 = (uint64_t *)((uintptr_t)mbuf0 +
offsetof(struct rte_mbuf, pool) -
offsetof(struct rte_mbuf, buf_iova));
mbuf1 = (uint64_t *)((uintptr_t)mbuf1 +
offsetof(struct rte_mbuf, pool) -
offsetof(struct rte_mbuf, buf_iova));
mbuf2 = (uint64_t *)((uintptr_t)mbuf2 +
offsetof(struct rte_mbuf, pool) -
offsetof(struct rte_mbuf, buf_iova));
mbuf3 = (uint64_t *)((uintptr_t)mbuf3 +
offsetof(struct rte_mbuf, pool) -
offsetof(struct rte_mbuf, buf_iova));
if (flags & (NIX_TX_OFFLOAD_OL3_OL4_CSUM_F |
NIX_TX_OFFLOAD_L3_L4_CSUM_F)) {
/* Get tx_offload for ol2, ol3, l2, l3 lengths */
/*
* E(8):OL2_LEN(7):OL3_LEN(9):E(24):L3_LEN(9):L2_LEN(7)
* E(8):OL2_LEN(7):OL3_LEN(9):E(24):L3_LEN(9):L2_LEN(7)
*/
asm volatile("LD1 {%[a].D}[0],[%[in]]\n\t"
: [a] "+w"(senddesc01_w1)
: [in] "r"(mbuf0 + 2)
: "memory");
asm volatile("LD1 {%[a].D}[1],[%[in]]\n\t"
: [a] "+w"(senddesc01_w1)
: [in] "r"(mbuf1 + 2)
: "memory");
asm volatile("LD1 {%[b].D}[0],[%[in]]\n\t"
: [b] "+w"(senddesc23_w1)
: [in] "r"(mbuf2 + 2)
: "memory");
asm volatile("LD1 {%[b].D}[1],[%[in]]\n\t"
: [b] "+w"(senddesc23_w1)
: [in] "r"(mbuf3 + 2)
: "memory");
/* Get pool pointer alone */
mbuf0 = (uint64_t *)*mbuf0;
mbuf1 = (uint64_t *)*mbuf1;
mbuf2 = (uint64_t *)*mbuf2;
mbuf3 = (uint64_t *)*mbuf3;
} else {
/* Get pool pointer alone */
mbuf0 = (uint64_t *)*mbuf0;
mbuf1 = (uint64_t *)*mbuf1;
mbuf2 = (uint64_t *)*mbuf2;
mbuf3 = (uint64_t *)*mbuf3;
}
const uint8x16_t shuf_mask2 = {
0x4, 0x5, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF,
0xc, 0xd, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF,
};
xtmp128 = vzip2q_u64(len_olflags0, len_olflags1);
ytmp128 = vzip2q_u64(len_olflags2, len_olflags3);
/* Clear dataoff_iovaX.D[1] bits other than dataoff(15:0) */
const uint64x2_t and_mask0 = {
0xFFFFFFFFFFFFFFFF,
0x000000000000FFFF,
};
dataoff_iova0 = vandq_u64(dataoff_iova0, and_mask0);
dataoff_iova1 = vandq_u64(dataoff_iova1, and_mask0);
dataoff_iova2 = vandq_u64(dataoff_iova2, and_mask0);
dataoff_iova3 = vandq_u64(dataoff_iova3, and_mask0);
/*
* Pick only 16 bits of pktlen preset at bits 63:32
* and place them at bits 15:0.
*/
xtmp128 = vqtbl1q_u8(xtmp128, shuf_mask2);
ytmp128 = vqtbl1q_u8(ytmp128, shuf_mask2);
/* Add pairwise to get dataoff + iova in sgdesc_w1 */
sgdesc01_w1 = vpaddq_u64(dataoff_iova0, dataoff_iova1);
sgdesc23_w1 = vpaddq_u64(dataoff_iova2, dataoff_iova3);
/* Orr both sgdesc_w0 and senddesc_w0 with 16 bits of
* pktlen at 15:0 position.
*/
sgdesc01_w0 = vorrq_u64(sgdesc01_w0, xtmp128);
sgdesc23_w0 = vorrq_u64(sgdesc23_w0, ytmp128);
senddesc01_w0 = vorrq_u64(senddesc01_w0, xtmp128);
senddesc23_w0 = vorrq_u64(senddesc23_w0, ytmp128);
/* Move mbuf to point to pool_id. */
mbuf0 = (uint64_t *)((uintptr_t)mbuf0 +
offsetof(struct rte_mempool, pool_id));
mbuf1 = (uint64_t *)((uintptr_t)mbuf1 +
offsetof(struct rte_mempool, pool_id));
mbuf2 = (uint64_t *)((uintptr_t)mbuf2 +
offsetof(struct rte_mempool, pool_id));
mbuf3 = (uint64_t *)((uintptr_t)mbuf3 +
offsetof(struct rte_mempool, pool_id));
if ((flags & NIX_TX_OFFLOAD_L3_L4_CSUM_F) &&
!(flags & NIX_TX_OFFLOAD_OL3_OL4_CSUM_F)) {
/*
* Lookup table to translate ol_flags to
* il3/il4 types. But we still use ol3/ol4 types in
* senddesc_w1 as only one header processing is enabled.
*/
const uint8x16_t tbl = {
/* [0-15] = il4type:il3type */
0x04, /* none (IPv6 assumed) */
0x14, /* PKT_TX_TCP_CKSUM (IPv6 assumed) */
0x24, /* PKT_TX_SCTP_CKSUM (IPv6 assumed) */
0x34, /* PKT_TX_UDP_CKSUM (IPv6 assumed) */
0x03, /* PKT_TX_IP_CKSUM */
0x13, /* PKT_TX_IP_CKSUM | PKT_TX_TCP_CKSUM */
0x23, /* PKT_TX_IP_CKSUM | PKT_TX_SCTP_CKSUM */
0x33, /* PKT_TX_IP_CKSUM | PKT_TX_UDP_CKSUM */
0x02, /* PKT_TX_IPV4 */
0x12, /* PKT_TX_IPV4 | PKT_TX_TCP_CKSUM */
0x22, /* PKT_TX_IPV4 | PKT_TX_SCTP_CKSUM */
0x32, /* PKT_TX_IPV4 | PKT_TX_UDP_CKSUM */
0x03, /* PKT_TX_IPV4 | PKT_TX_IP_CKSUM */
0x13, /* PKT_TX_IPV4 | PKT_TX_IP_CKSUM |
* PKT_TX_TCP_CKSUM
*/
0x23, /* PKT_TX_IPV4 | PKT_TX_IP_CKSUM |
* PKT_TX_SCTP_CKSUM
*/
0x33, /* PKT_TX_IPV4 | PKT_TX_IP_CKSUM |
* PKT_TX_UDP_CKSUM
*/
};
/* Extract olflags to translate to iltypes */
xtmp128 = vzip1q_u64(len_olflags0, len_olflags1);
ytmp128 = vzip1q_u64(len_olflags2, len_olflags3);
/*
* E(47):L3_LEN(9):L2_LEN(7+z)
* E(47):L3_LEN(9):L2_LEN(7+z)
*/
senddesc01_w1 = vshlq_n_u64(senddesc01_w1, 1);
senddesc23_w1 = vshlq_n_u64(senddesc23_w1, 1);
/* Move OLFLAGS bits 55:52 to 51:48
* with zeros preprended on the byte and rest
* don't care
*/
xtmp128 = vshrq_n_u8(xtmp128, 4);
ytmp128 = vshrq_n_u8(ytmp128, 4);
/*
* E(48):L3_LEN(8):L2_LEN(z+7)
* E(48):L3_LEN(8):L2_LEN(z+7)
*/
const int8x16_t tshft3 = {
-1, 0, 8, 8, 8, 8, 8, 8,
-1, 0, 8, 8, 8, 8, 8, 8,
};
senddesc01_w1 = vshlq_u8(senddesc01_w1, tshft3);
senddesc23_w1 = vshlq_u8(senddesc23_w1, tshft3);
/* Do the lookup */
ltypes01 = vqtbl1q_u8(tbl, xtmp128);
ltypes23 = vqtbl1q_u8(tbl, ytmp128);
/* Pick only relevant fields i.e Bit 48:55 of iltype
* and place it in ol3/ol4type of senddesc_w1
*/
const uint8x16_t shuf_mask0 = {
0xFF, 0xFF, 0xFF, 0xFF, 0x6, 0xFF, 0xFF, 0xFF,
0xFF, 0xFF, 0xFF, 0xFF, 0xE, 0xFF, 0xFF, 0xFF,
};
ltypes01 = vqtbl1q_u8(ltypes01, shuf_mask0);
ltypes23 = vqtbl1q_u8(ltypes23, shuf_mask0);
/* Prepare ol4ptr, ol3ptr from ol3len, ol2len.
* a [E(32):E(16):OL3(8):OL2(8)]
* a = a + (a << 8)
* a [E(32):E(16):(OL3+OL2):OL2]
* => E(32):E(16)::OL4PTR(8):OL3PTR(8)
*/
senddesc01_w1 = vaddq_u8(senddesc01_w1,
vshlq_n_u16(senddesc01_w1, 8));
senddesc23_w1 = vaddq_u8(senddesc23_w1,
vshlq_n_u16(senddesc23_w1, 8));
/* Move ltypes to senddesc*_w1 */
senddesc01_w1 = vorrq_u64(senddesc01_w1, ltypes01);
senddesc23_w1 = vorrq_u64(senddesc23_w1, ltypes23);
} else if (!(flags & NIX_TX_OFFLOAD_L3_L4_CSUM_F) &&
(flags & NIX_TX_OFFLOAD_OL3_OL4_CSUM_F)) {
/*
* Lookup table to translate ol_flags to
* ol3/ol4 types.
*/
const uint8x16_t tbl = {
/* [0-15] = ol4type:ol3type */
0x00, /* none */
0x03, /* OUTER_IP_CKSUM */
0x02, /* OUTER_IPV4 */
0x03, /* OUTER_IPV4 | OUTER_IP_CKSUM */
0x04, /* OUTER_IPV6 */
0x00, /* OUTER_IPV6 | OUTER_IP_CKSUM */
0x00, /* OUTER_IPV6 | OUTER_IPV4 */
0x00, /* OUTER_IPV6 | OUTER_IPV4 |
* OUTER_IP_CKSUM
*/
0x00, /* OUTER_UDP_CKSUM */
0x33, /* OUTER_UDP_CKSUM | OUTER_IP_CKSUM */
0x32, /* OUTER_UDP_CKSUM | OUTER_IPV4 */
0x33, /* OUTER_UDP_CKSUM | OUTER_IPV4 |
* OUTER_IP_CKSUM
*/
0x34, /* OUTER_UDP_CKSUM | OUTER_IPV6 */
0x00, /* OUTER_UDP_CKSUM | OUTER_IPV6 |
* OUTER_IP_CKSUM
*/
0x00, /* OUTER_UDP_CKSUM | OUTER_IPV6 |
* OUTER_IPV4
*/
0x00, /* OUTER_UDP_CKSUM | OUTER_IPV6 |
* OUTER_IPV4 | OUTER_IP_CKSUM
*/
};
/* Extract olflags to translate to iltypes */
xtmp128 = vzip1q_u64(len_olflags0, len_olflags1);
ytmp128 = vzip1q_u64(len_olflags2, len_olflags3);
/*
* E(47):OL3_LEN(9):OL2_LEN(7+z)
* E(47):OL3_LEN(9):OL2_LEN(7+z)
*/
const uint8x16_t shuf_mask5 = {
0x6, 0x5, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF,
0xE, 0xD, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF,
};
senddesc01_w1 = vqtbl1q_u8(senddesc01_w1, shuf_mask5);
senddesc23_w1 = vqtbl1q_u8(senddesc23_w1, shuf_mask5);
/* Extract outer ol flags only */
const uint64x2_t o_cksum_mask = {
0x1C00020000000000,
0x1C00020000000000,
};
xtmp128 = vandq_u64(xtmp128, o_cksum_mask);
ytmp128 = vandq_u64(ytmp128, o_cksum_mask);
/* Extract OUTER_UDP_CKSUM bit 41 and
* move it to bit 61
*/
xtmp128 = xtmp128 | vshlq_n_u64(xtmp128, 20);
ytmp128 = ytmp128 | vshlq_n_u64(ytmp128, 20);
/* Shift oltype by 2 to start nibble from BIT(56)
* instead of BIT(58)
*/
xtmp128 = vshrq_n_u8(xtmp128, 2);
ytmp128 = vshrq_n_u8(ytmp128, 2);
/*
* E(48):L3_LEN(8):L2_LEN(z+7)
* E(48):L3_LEN(8):L2_LEN(z+7)
*/
const int8x16_t tshft3 = {
-1, 0, 8, 8, 8, 8, 8, 8,
-1, 0, 8, 8, 8, 8, 8, 8,
};
senddesc01_w1 = vshlq_u8(senddesc01_w1, tshft3);
senddesc23_w1 = vshlq_u8(senddesc23_w1, tshft3);
/* Do the lookup */
ltypes01 = vqtbl1q_u8(tbl, xtmp128);
ltypes23 = vqtbl1q_u8(tbl, ytmp128);
/* Pick only relevant fields i.e Bit 56:63 of oltype
* and place it in ol3/ol4type of senddesc_w1
*/
const uint8x16_t shuf_mask0 = {
0xFF, 0xFF, 0xFF, 0xFF, 0x7, 0xFF, 0xFF, 0xFF,
0xFF, 0xFF, 0xFF, 0xFF, 0xF, 0xFF, 0xFF, 0xFF,
};
ltypes01 = vqtbl1q_u8(ltypes01, shuf_mask0);
ltypes23 = vqtbl1q_u8(ltypes23, shuf_mask0);
/* Prepare ol4ptr, ol3ptr from ol3len, ol2len.
* a [E(32):E(16):OL3(8):OL2(8)]
* a = a + (a << 8)
* a [E(32):E(16):(OL3+OL2):OL2]
* => E(32):E(16)::OL4PTR(8):OL3PTR(8)
*/
senddesc01_w1 = vaddq_u8(senddesc01_w1,
vshlq_n_u16(senddesc01_w1, 8));
senddesc23_w1 = vaddq_u8(senddesc23_w1,
vshlq_n_u16(senddesc23_w1, 8));
/* Move ltypes to senddesc*_w1 */
senddesc01_w1 = vorrq_u64(senddesc01_w1, ltypes01);
senddesc23_w1 = vorrq_u64(senddesc23_w1, ltypes23);
} else if ((flags & NIX_TX_OFFLOAD_L3_L4_CSUM_F) &&
(flags & NIX_TX_OFFLOAD_OL3_OL4_CSUM_F)) {
/* Lookup table to translate ol_flags to
* ol4type, ol3type, il4type, il3type of senddesc_w1
*/
const uint8x16x2_t tbl = {{
{
/* [0-15] = il4type:il3type */
0x04, /* none (IPv6) */
0x14, /* PKT_TX_TCP_CKSUM (IPv6) */
0x24, /* PKT_TX_SCTP_CKSUM (IPv6) */
0x34, /* PKT_TX_UDP_CKSUM (IPv6) */
0x03, /* PKT_TX_IP_CKSUM */
0x13, /* PKT_TX_IP_CKSUM |
* PKT_TX_TCP_CKSUM
*/
0x23, /* PKT_TX_IP_CKSUM |
* PKT_TX_SCTP_CKSUM
*/
0x33, /* PKT_TX_IP_CKSUM |
* PKT_TX_UDP_CKSUM
*/
0x02, /* PKT_TX_IPV4 */
0x12, /* PKT_TX_IPV4 |
* PKT_TX_TCP_CKSUM
*/
0x22, /* PKT_TX_IPV4 |
* PKT_TX_SCTP_CKSUM
*/
0x32, /* PKT_TX_IPV4 |
* PKT_TX_UDP_CKSUM
*/
0x03, /* PKT_TX_IPV4 |
* PKT_TX_IP_CKSUM
*/
0x13, /* PKT_TX_IPV4 | PKT_TX_IP_CKSUM |
* PKT_TX_TCP_CKSUM
*/
0x23, /* PKT_TX_IPV4 | PKT_TX_IP_CKSUM |
* PKT_TX_SCTP_CKSUM
*/
0x33, /* PKT_TX_IPV4 | PKT_TX_IP_CKSUM |
* PKT_TX_UDP_CKSUM
*/
},
{
/* [16-31] = ol4type:ol3type */
0x00, /* none */
0x03, /* OUTER_IP_CKSUM */
0x02, /* OUTER_IPV4 */
0x03, /* OUTER_IPV4 | OUTER_IP_CKSUM */
0x04, /* OUTER_IPV6 */
0x00, /* OUTER_IPV6 | OUTER_IP_CKSUM */
0x00, /* OUTER_IPV6 | OUTER_IPV4 */
0x00, /* OUTER_IPV6 | OUTER_IPV4 |
* OUTER_IP_CKSUM
*/
0x00, /* OUTER_UDP_CKSUM */
0x33, /* OUTER_UDP_CKSUM |
* OUTER_IP_CKSUM
*/
0x32, /* OUTER_UDP_CKSUM |
* OUTER_IPV4
*/
0x33, /* OUTER_UDP_CKSUM |
* OUTER_IPV4 | OUTER_IP_CKSUM
*/
0x34, /* OUTER_UDP_CKSUM |
* OUTER_IPV6
*/
0x00, /* OUTER_UDP_CKSUM | OUTER_IPV6 |
* OUTER_IP_CKSUM
*/
0x00, /* OUTER_UDP_CKSUM | OUTER_IPV6 |
* OUTER_IPV4
*/
0x00, /* OUTER_UDP_CKSUM | OUTER_IPV6 |
* OUTER_IPV4 | OUTER_IP_CKSUM
*/
},
}};
/* Extract olflags to translate to oltype & iltype */
xtmp128 = vzip1q_u64(len_olflags0, len_olflags1);
ytmp128 = vzip1q_u64(len_olflags2, len_olflags3);
/*
* E(8):OL2_LN(7):OL3_LN(9):E(23):L3_LN(9):L2_LN(7+z)
* E(8):OL2_LN(7):OL3_LN(9):E(23):L3_LN(9):L2_LN(7+z)
*/
const uint32x4_t tshft_4 = {
1,
0,
1,
0,
};
senddesc01_w1 = vshlq_u32(senddesc01_w1, tshft_4);
senddesc23_w1 = vshlq_u32(senddesc23_w1, tshft_4);
/*
* E(32):L3_LEN(8):L2_LEN(7+Z):OL3_LEN(8):OL2_LEN(7+Z)
* E(32):L3_LEN(8):L2_LEN(7+Z):OL3_LEN(8):OL2_LEN(7+Z)
*/
const uint8x16_t shuf_mask5 = {
0x6, 0x5, 0x0, 0x1, 0xFF, 0xFF, 0xFF, 0xFF,
0xE, 0xD, 0x8, 0x9, 0xFF, 0xFF, 0xFF, 0xFF,
};
senddesc01_w1 = vqtbl1q_u8(senddesc01_w1, shuf_mask5);
senddesc23_w1 = vqtbl1q_u8(senddesc23_w1, shuf_mask5);
/* Extract outer and inner header ol_flags */
const uint64x2_t oi_cksum_mask = {
0x1CF0020000000000,
0x1CF0020000000000,
};
xtmp128 = vandq_u64(xtmp128, oi_cksum_mask);
ytmp128 = vandq_u64(ytmp128, oi_cksum_mask);
/* Extract OUTER_UDP_CKSUM bit 41 and
* move it to bit 61
*/
xtmp128 = xtmp128 | vshlq_n_u64(xtmp128, 20);
ytmp128 = ytmp128 | vshlq_n_u64(ytmp128, 20);
/* Shift right oltype by 2 and iltype by 4
* to start oltype nibble from BIT(58)
* instead of BIT(56) and iltype nibble from BIT(48)
* instead of BIT(52).
*/
const int8x16_t tshft5 = {
8, 8, 8, 8, 8, 8, -4, -2,
8, 8, 8, 8, 8, 8, -4, -2,
};
xtmp128 = vshlq_u8(xtmp128, tshft5);
ytmp128 = vshlq_u8(ytmp128, tshft5);
/*
* E(32):L3_LEN(8):L2_LEN(8):OL3_LEN(8):OL2_LEN(8)
* E(32):L3_LEN(8):L2_LEN(8):OL3_LEN(8):OL2_LEN(8)
*/
const int8x16_t tshft3 = {
-1, 0, -1, 0, 0, 0, 0, 0,
-1, 0, -1, 0, 0, 0, 0, 0,
};
senddesc01_w1 = vshlq_u8(senddesc01_w1, tshft3);
senddesc23_w1 = vshlq_u8(senddesc23_w1, tshft3);
/* Mark Bit(4) of oltype */
const uint64x2_t oi_cksum_mask2 = {
0x1000000000000000,
0x1000000000000000,
};
xtmp128 = vorrq_u64(xtmp128, oi_cksum_mask2);
ytmp128 = vorrq_u64(ytmp128, oi_cksum_mask2);
/* Do the lookup */
ltypes01 = vqtbl2q_u8(tbl, xtmp128);
ltypes23 = vqtbl2q_u8(tbl, ytmp128);
/* Pick only relevant fields i.e Bit 48:55 of iltype and
* Bit 56:63 of oltype and place it in corresponding
* place in senddesc_w1.
*/
const uint8x16_t shuf_mask0 = {
0xFF, 0xFF, 0xFF, 0xFF, 0x7, 0x6, 0xFF, 0xFF,
0xFF, 0xFF, 0xFF, 0xFF, 0xF, 0xE, 0xFF, 0xFF,
};
ltypes01 = vqtbl1q_u8(ltypes01, shuf_mask0);
ltypes23 = vqtbl1q_u8(ltypes23, shuf_mask0);
/* Prepare l4ptr, l3ptr, ol4ptr, ol3ptr from
* l3len, l2len, ol3len, ol2len.
* a [E(32):L3(8):L2(8):OL3(8):OL2(8)]
* a = a + (a << 8)
* a [E:(L3+L2):(L2+OL3):(OL3+OL2):OL2]
* a = a + (a << 16)
* a [E:(L3+L2+OL3+OL2):(L2+OL3+OL2):(OL3+OL2):OL2]
* => E(32):IL4PTR(8):IL3PTR(8):OL4PTR(8):OL3PTR(8)
*/
senddesc01_w1 = vaddq_u8(senddesc01_w1,
vshlq_n_u32(senddesc01_w1, 8));
senddesc23_w1 = vaddq_u8(senddesc23_w1,
vshlq_n_u32(senddesc23_w1, 8));
/* Continue preparing l4ptr, l3ptr, ol4ptr, ol3ptr */
senddesc01_w1 = vaddq_u8(
senddesc01_w1, vshlq_n_u32(senddesc01_w1, 16));
senddesc23_w1 = vaddq_u8(
senddesc23_w1, vshlq_n_u32(senddesc23_w1, 16));
/* Move ltypes to senddesc*_w1 */
senddesc01_w1 = vorrq_u64(senddesc01_w1, ltypes01);
senddesc23_w1 = vorrq_u64(senddesc23_w1, ltypes23);
}
xmask01 = vdupq_n_u64(0);
xmask23 = xmask01;
asm volatile("LD1 {%[a].H}[0],[%[in]]\n\t"
: [a] "+w"(xmask01)
: [in] "r"(mbuf0)
: "memory");
asm volatile("LD1 {%[a].H}[4],[%[in]]\n\t"
: [a] "+w"(xmask01)
: [in] "r"(mbuf1)
: "memory");
asm volatile("LD1 {%[b].H}[0],[%[in]]\n\t"
: [b] "+w"(xmask23)
: [in] "r"(mbuf2)
: "memory");
asm volatile("LD1 {%[b].H}[4],[%[in]]\n\t"
: [b] "+w"(xmask23)
: [in] "r"(mbuf3)
: "memory");
xmask01 = vshlq_n_u64(xmask01, 20);
xmask23 = vshlq_n_u64(xmask23, 20);
senddesc01_w0 = vorrq_u64(senddesc01_w0, xmask01);
senddesc23_w0 = vorrq_u64(senddesc23_w0, xmask23);
if (flags & NIX_TX_OFFLOAD_MBUF_NOFF_F) {
/* Set don't free bit if reference count > 1 */
xmask01 = vdupq_n_u64(0);
xmask23 = xmask01;
/* Move mbufs to iova */
mbuf0 = (uint64_t *)tx_pkts[0];
mbuf1 = (uint64_t *)tx_pkts[1];
mbuf2 = (uint64_t *)tx_pkts[2];
mbuf3 = (uint64_t *)tx_pkts[3];
if (cnxk_nix_prefree_seg((struct rte_mbuf *)mbuf0))
vsetq_lane_u64(0x80000, xmask01, 0);
else
__mempool_check_cookies(
((struct rte_mbuf *)mbuf0)->pool,
(void **)&mbuf0, 1, 0);
if (cnxk_nix_prefree_seg((struct rte_mbuf *)mbuf1))
vsetq_lane_u64(0x80000, xmask01, 1);
else
__mempool_check_cookies(
((struct rte_mbuf *)mbuf1)->pool,
(void **)&mbuf1, 1, 0);
if (cnxk_nix_prefree_seg((struct rte_mbuf *)mbuf2))
vsetq_lane_u64(0x80000, xmask23, 0);
else
__mempool_check_cookies(
((struct rte_mbuf *)mbuf2)->pool,
(void **)&mbuf2, 1, 0);
if (cnxk_nix_prefree_seg((struct rte_mbuf *)mbuf3))
vsetq_lane_u64(0x80000, xmask23, 1);
else
__mempool_check_cookies(
((struct rte_mbuf *)mbuf3)->pool,
(void **)&mbuf3, 1, 0);
senddesc01_w0 = vorrq_u64(senddesc01_w0, xmask01);
senddesc23_w0 = vorrq_u64(senddesc23_w0, xmask23);
} else {
/* Move mbufs to iova */
mbuf0 = (uint64_t *)tx_pkts[0];
mbuf1 = (uint64_t *)tx_pkts[1];
mbuf2 = (uint64_t *)tx_pkts[2];
mbuf3 = (uint64_t *)tx_pkts[3];
/* Mark mempool object as "put" since
* it is freed by NIX
*/
__mempool_check_cookies(
((struct rte_mbuf *)mbuf0)->pool,
(void **)&mbuf0, 1, 0);
__mempool_check_cookies(
((struct rte_mbuf *)mbuf1)->pool,
(void **)&mbuf1, 1, 0);
__mempool_check_cookies(
((struct rte_mbuf *)mbuf2)->pool,
(void **)&mbuf2, 1, 0);
__mempool_check_cookies(
((struct rte_mbuf *)mbuf3)->pool,
(void **)&mbuf3, 1, 0);
}
/* Create 4W cmd for 4 mbufs (sendhdr, sgdesc) */
cmd0[0] = vzip1q_u64(senddesc01_w0, senddesc01_w1);
cmd0[1] = vzip2q_u64(senddesc01_w0, senddesc01_w1);
cmd0[2] = vzip1q_u64(senddesc23_w0, senddesc23_w1);
cmd0[3] = vzip2q_u64(senddesc23_w0, senddesc23_w1);
cmd1[0] = vzip1q_u64(sgdesc01_w0, sgdesc01_w1);
cmd1[1] = vzip2q_u64(sgdesc01_w0, sgdesc01_w1);
cmd1[2] = vzip1q_u64(sgdesc23_w0, sgdesc23_w1);
cmd1[3] = vzip2q_u64(sgdesc23_w0, sgdesc23_w1);
/* Store the prepared send desc to LMT lines */
vst1q_u64(LMT_OFF(laddr, lnum, 0), cmd0[0]);
vst1q_u64(LMT_OFF(laddr, lnum, 16), cmd1[0]);
vst1q_u64(LMT_OFF(laddr, lnum, 32), cmd0[1]);
vst1q_u64(LMT_OFF(laddr, lnum, 48), cmd1[1]);
vst1q_u64(LMT_OFF(laddr, lnum, 64), cmd0[2]);
vst1q_u64(LMT_OFF(laddr, lnum, 80), cmd1[2]);
vst1q_u64(LMT_OFF(laddr, lnum, 96), cmd0[3]);
vst1q_u64(LMT_OFF(laddr, lnum, 112), cmd1[3]);
lnum += 1;
tx_pkts = tx_pkts + NIX_DESCS_PER_LOOP;
}
/* Trigger LMTST */
if (lnum > 16) {
data = cn10k_nix_tx_steor_vec_data(flags);
pa = io_addr | (data & 0x7) << 4;
data &= ~0x7ULL;
data |= (15ULL << 12);
data |= (uint64_t)lmt_id;
/* STEOR0 */
roc_lmt_submit_steorl(data, pa);
data = cn10k_nix_tx_steor_vec_data(flags);
pa = io_addr | (data & 0x7) << 4;
data &= ~0x7ULL;
data |= ((uint64_t)(lnum - 17)) << 12;
data |= (uint64_t)(lmt_id + 16);
/* STEOR1 */
roc_lmt_submit_steorl(data, pa);
} else if (lnum) {
data = cn10k_nix_tx_steor_vec_data(flags);
pa = io_addr | (data & 0x7) << 4;
data &= ~0x7ULL;
data |= ((uint64_t)(lnum - 1)) << 12;
data |= lmt_id;
/* STEOR0 */
roc_lmt_submit_steorl(data, pa);
}
left -= burst;
rte_io_wmb();
if (left)
goto again;
if (unlikely(scalar))
pkts += cn10k_nix_xmit_pkts(tx_queue, tx_pkts, scalar, cmd,
flags);
return pkts;
}
#else
static __rte_always_inline uint16_t
cn10k_nix_xmit_pkts_vector(void *tx_queue, struct rte_mbuf **tx_pkts,
uint16_t pkts, uint64_t *cmd, const uint16_t flags)
{
RTE_SET_USED(tx_queue);
RTE_SET_USED(tx_pkts);
RTE_SET_USED(pkts);
RTE_SET_USED(cmd);
RTE_SET_USED(flags);
return 0;
}
#endif
#define L3L4CSUM_F NIX_TX_OFFLOAD_L3_L4_CSUM_F
#define OL3OL4CSUM_F NIX_TX_OFFLOAD_OL3_OL4_CSUM_F
#define VLAN_F NIX_TX_OFFLOAD_VLAN_QINQ_F
#define NOFF_F NIX_TX_OFFLOAD_MBUF_NOFF_F
#define TSO_F NIX_TX_OFFLOAD_TSO_F
#define TSP_F NIX_TX_OFFLOAD_TSTAMP_F
/* [TSP] [TSO] [NOFF] [VLAN] [OL3OL4CSUM] [L3L4CSUM] */
#define NIX_TX_FASTPATH_MODES \
T(no_offload, 0, 0, 0, 0, 0, 0, 4, \
NIX_TX_OFFLOAD_NONE) \
T(l3l4csum, 0, 0, 0, 0, 0, 1, 4, \
L3L4CSUM_F) \
T(ol3ol4csum, 0, 0, 0, 0, 1, 0, 4, \
OL3OL4CSUM_F) \
T(ol3ol4csum_l3l4csum, 0, 0, 0, 0, 1, 1, 4, \
OL3OL4CSUM_F | L3L4CSUM_F) \
T(vlan, 0, 0, 0, 1, 0, 0, 6, \
VLAN_F) \
T(vlan_l3l4csum, 0, 0, 0, 1, 0, 1, 6, \
VLAN_F | L3L4CSUM_F) \
T(vlan_ol3ol4csum, 0, 0, 0, 1, 1, 0, 6, \
VLAN_F | OL3OL4CSUM_F) \
T(vlan_ol3ol4csum_l3l4csum, 0, 0, 0, 1, 1, 1, 6, \
VLAN_F | OL3OL4CSUM_F | L3L4CSUM_F) \
T(noff, 0, 0, 1, 0, 0, 0, 4, \
NOFF_F) \
T(noff_l3l4csum, 0, 0, 1, 0, 0, 1, 4, \
NOFF_F | L3L4CSUM_F) \
T(noff_ol3ol4csum, 0, 0, 1, 0, 1, 0, 4, \
NOFF_F | OL3OL4CSUM_F) \
T(noff_ol3ol4csum_l3l4csum, 0, 0, 1, 0, 1, 1, 4, \
NOFF_F | OL3OL4CSUM_F | L3L4CSUM_F) \
T(noff_vlan, 0, 0, 1, 1, 0, 0, 6, \
NOFF_F | VLAN_F) \
T(noff_vlan_l3l4csum, 0, 0, 1, 1, 0, 1, 6, \
NOFF_F | VLAN_F | L3L4CSUM_F) \
T(noff_vlan_ol3ol4csum, 0, 0, 1, 1, 1, 0, 6, \
NOFF_F | VLAN_F | OL3OL4CSUM_F) \
T(noff_vlan_ol3ol4csum_l3l4csum, 0, 0, 1, 1, 1, 1, 6, \
NOFF_F | VLAN_F | OL3OL4CSUM_F | L3L4CSUM_F) \
T(tso, 0, 1, 0, 0, 0, 0, 6, \
TSO_F) \
T(tso_l3l4csum, 0, 1, 0, 0, 0, 1, 6, \
TSO_F | L3L4CSUM_F) \
T(tso_ol3ol4csum, 0, 1, 0, 0, 1, 0, 6, \
TSO_F | OL3OL4CSUM_F) \
T(tso_ol3ol4csum_l3l4csum, 0, 1, 0, 0, 1, 1, 6, \
TSO_F | OL3OL4CSUM_F | L3L4CSUM_F) \
T(tso_vlan, 0, 1, 0, 1, 0, 0, 6, \
TSO_F | VLAN_F) \
T(tso_vlan_l3l4csum, 0, 1, 0, 1, 0, 1, 6, \
TSO_F | VLAN_F | L3L4CSUM_F) \
T(tso_vlan_ol3ol4csum, 0, 1, 0, 1, 1, 0, 6, \
TSO_F | VLAN_F | OL3OL4CSUM_F) \
T(tso_vlan_ol3ol4csum_l3l4csum, 0, 1, 0, 1, 1, 1, 6, \
TSO_F | VLAN_F | OL3OL4CSUM_F | L3L4CSUM_F) \
T(tso_noff, 0, 1, 1, 0, 0, 0, 6, \
TSO_F | NOFF_F) \
T(tso_noff_l3l4csum, 0, 1, 1, 0, 0, 1, 6, \
TSO_F | NOFF_F | L3L4CSUM_F) \
T(tso_noff_ol3ol4csum, 0, 1, 1, 0, 1, 0, 6, \
TSO_F | NOFF_F | OL3OL4CSUM_F) \
T(tso_noff_ol3ol4csum_l3l4csum, 0, 1, 1, 0, 1, 1, 6, \
TSO_F | NOFF_F | OL3OL4CSUM_F | L3L4CSUM_F) \
T(tso_noff_vlan, 0, 1, 1, 1, 0, 0, 6, \
TSO_F | NOFF_F | VLAN_F) \
T(tso_noff_vlan_l3l4csum, 0, 1, 1, 1, 0, 1, 6, \
TSO_F | NOFF_F | VLAN_F | L3L4CSUM_F) \
T(tso_noff_vlan_ol3ol4csum, 0, 1, 1, 1, 1, 0, 6, \
TSO_F | NOFF_F | VLAN_F | OL3OL4CSUM_F) \
T(tso_noff_vlan_ol3ol4csum_l3l4csum, 0, 1, 1, 1, 1, 1, 6, \
TSO_F | NOFF_F | VLAN_F | OL3OL4CSUM_F | L3L4CSUM_F) \
T(ts, 1, 0, 0, 0, 0, 0, 8, \
TSP_F) \
T(ts_l3l4csum, 1, 0, 0, 0, 0, 1, 8, \
TSP_F | L3L4CSUM_F) \
T(ts_ol3ol4csum, 1, 0, 0, 0, 1, 0, 8, \
TSP_F | OL3OL4CSUM_F) \
T(ts_ol3ol4csum_l3l4csum, 1, 0, 0, 0, 1, 1, 8, \
TSP_F | OL3OL4CSUM_F | L3L4CSUM_F) \
T(ts_vlan, 1, 0, 0, 1, 0, 0, 8, \
TSP_F | VLAN_F) \
T(ts_vlan_l3l4csum, 1, 0, 0, 1, 0, 1, 8, \
TSP_F | VLAN_F | L3L4CSUM_F) \
T(ts_vlan_ol3ol4csum, 1, 0, 0, 1, 1, 0, 8, \
TSP_F | VLAN_F | OL3OL4CSUM_F) \
T(ts_vlan_ol3ol4csum_l3l4csum, 1, 0, 0, 1, 1, 1, 8, \
TSP_F | VLAN_F | OL3OL4CSUM_F | L3L4CSUM_F) \
T(ts_noff, 1, 0, 1, 0, 0, 0, 8, \
TSP_F | NOFF_F) \
T(ts_noff_l3l4csum, 1, 0, 1, 0, 0, 1, 8, \
TSP_F | NOFF_F | L3L4CSUM_F) \
T(ts_noff_ol3ol4csum, 1, 0, 1, 0, 1, 0, 8, \
TSP_F | NOFF_F | OL3OL4CSUM_F) \
T(ts_noff_ol3ol4csum_l3l4csum, 1, 0, 1, 0, 1, 1, 8, \
TSP_F | NOFF_F | OL3OL4CSUM_F | L3L4CSUM_F) \
T(ts_noff_vlan, 1, 0, 1, 1, 0, 0, 8, \
TSP_F | NOFF_F | VLAN_F) \
T(ts_noff_vlan_l3l4csum, 1, 0, 1, 1, 0, 1, 8, \
TSP_F | NOFF_F | VLAN_F | L3L4CSUM_F) \
T(ts_noff_vlan_ol3ol4csum, 1, 0, 1, 1, 1, 0, 8, \
TSP_F | NOFF_F | VLAN_F | OL3OL4CSUM_F) \
T(ts_noff_vlan_ol3ol4csum_l3l4csum, 1, 0, 1, 1, 1, 1, 8, \
TSP_F | NOFF_F | VLAN_F | OL3OL4CSUM_F | L3L4CSUM_F) \
T(ts_tso, 1, 1, 0, 0, 0, 0, 8, \
TSP_F | TSO_F) \
T(ts_tso_l3l4csum, 1, 1, 0, 0, 0, 1, 8, \
TSP_F | TSO_F | L3L4CSUM_F) \
T(ts_tso_ol3ol4csum, 1, 1, 0, 0, 1, 0, 8, \
TSP_F | TSO_F | OL3OL4CSUM_F) \
T(ts_tso_ol3ol4csum_l3l4csum, 1, 1, 0, 0, 1, 1, 8, \
TSP_F | TSO_F | OL3OL4CSUM_F | L3L4CSUM_F) \
T(ts_tso_vlan, 1, 1, 0, 1, 0, 0, 8, \
TSP_F | TSO_F | VLAN_F) \
T(ts_tso_vlan_l3l4csum, 1, 1, 0, 1, 0, 1, 8, \
TSP_F | TSO_F | VLAN_F | L3L4CSUM_F) \
T(ts_tso_vlan_ol3ol4csum, 1, 1, 0, 1, 1, 0, 8, \
TSP_F | TSO_F | VLAN_F | OL3OL4CSUM_F) \
T(ts_tso_vlan_ol3ol4csum_l3l4csum, 1, 1, 0, 1, 1, 1, 8, \
TSP_F | TSO_F | VLAN_F | OL3OL4CSUM_F | L3L4CSUM_F) \
T(ts_tso_noff, 1, 1, 1, 0, 0, 0, 8, \
TSP_F | TSO_F | NOFF_F) \
T(ts_tso_noff_l3l4csum, 1, 1, 1, 0, 0, 1, 8, \
TSP_F | TSO_F | NOFF_F | L3L4CSUM_F) \
T(ts_tso_noff_ol3ol4csum, 1, 1, 1, 0, 1, 0, 8, \
TSP_F | TSO_F | NOFF_F | OL3OL4CSUM_F) \
T(ts_tso_noff_ol3ol4csum_l3l4csum, 1, 1, 1, 0, 1, 1, 8, \
TSP_F | TSO_F | NOFF_F | OL3OL4CSUM_F | L3L4CSUM_F) \
T(ts_tso_noff_vlan, 1, 1, 1, 1, 0, 0, 8, \
TSP_F | TSO_F | NOFF_F | VLAN_F) \
T(ts_tso_noff_vlan_l3l4csum, 1, 1, 1, 1, 0, 1, 8, \
TSP_F | TSO_F | NOFF_F | VLAN_F | L3L4CSUM_F) \
T(ts_tso_noff_vlan_ol3ol4csum, 1, 1, 1, 1, 1, 0, 8, \
TSP_F | TSO_F | NOFF_F | VLAN_F | OL3OL4CSUM_F) \
T(ts_tso_noff_vlan_ol3ol4csum_l3l4csum, 1, 1, 1, 1, 1, 1, 8, \
TSP_F | TSO_F | NOFF_F | VLAN_F | OL3OL4CSUM_F | L3L4CSUM_F)
#define T(name, f5, f4, f3, f2, f1, f0, sz, flags) \
uint16_t __rte_noinline __rte_hot cn10k_nix_xmit_pkts_##name( \
void *tx_queue, struct rte_mbuf **tx_pkts, uint16_t pkts); \
\
uint16_t __rte_noinline __rte_hot cn10k_nix_xmit_pkts_mseg_##name( \
void *tx_queue, struct rte_mbuf **tx_pkts, uint16_t pkts); \
\
uint16_t __rte_noinline __rte_hot cn10k_nix_xmit_pkts_vec_##name( \
void *tx_queue, struct rte_mbuf **tx_pkts, uint16_t pkts);
NIX_TX_FASTPATH_MODES
#undef T
#endif /* __CN10K_TX_H__ */
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