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numam-dpdk/drivers/net/dpaa/dpaa_rxtx.c
Hemant Agrawal f191d5abda net/dpaa: support external buffers in Tx 
This patch support tx of external buffers

Signed-off-by: Hemant Agrawal <hemant.agrawal@nxp.com>
2021-02-24 18:03:30 +01:00

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32 KiB
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/* SPDX-License-Identifier: BSD-3-Clause
*
* Copyright 2016 Freescale Semiconductor, Inc. All rights reserved.
* Copyright 2017,2019-2021 NXP
*
*/
/* System headers */
#include <inttypes.h>
#include <unistd.h>
#include <stdio.h>
#include <limits.h>
#include <sched.h>
#include <pthread.h>
#include <rte_byteorder.h>
#include <rte_common.h>
#include <rte_interrupts.h>
#include <rte_log.h>
#include <rte_debug.h>
#include <rte_pci.h>
#include <rte_atomic.h>
#include <rte_branch_prediction.h>
#include <rte_memory.h>
#include <rte_tailq.h>
#include <rte_eal.h>
#include <rte_alarm.h>
#include <rte_ether.h>
#include <ethdev_driver.h>
#include <rte_malloc.h>
#include <rte_ring.h>
#include <rte_ip.h>
#include <rte_tcp.h>
#include <rte_udp.h>
#include <rte_net.h>
#include <rte_eventdev.h>
#include "dpaa_ethdev.h"
#include "dpaa_rxtx.h"
#include <rte_dpaa_bus.h>
#include <dpaa_mempool.h>
#include <qman.h>
#include <fsl_usd.h>
#include <fsl_qman.h>
#include <fsl_bman.h>
#include <dpaa_of.h>
#include <netcfg.h>
#define DPAA_MBUF_TO_CONTIG_FD(_mbuf, _fd, _bpid) \
do { \
(_fd)->cmd = 0; \
(_fd)->opaque_addr = 0; \
(_fd)->opaque = QM_FD_CONTIG << DPAA_FD_FORMAT_SHIFT; \
(_fd)->opaque |= ((_mbuf)->data_off) << DPAA_FD_OFFSET_SHIFT; \
(_fd)->opaque |= (_mbuf)->pkt_len; \
(_fd)->addr = (_mbuf)->buf_iova; \
(_fd)->bpid = _bpid; \
} while (0)
#ifdef RTE_LIBRTE_DPAA_DEBUG_DRIVER
#define DISPLAY_PRINT printf
static void dpaa_display_frame_info(const struct qm_fd *fd,
uint32_t fqid, bool rx)
{
int ii;
char *ptr;
struct annotations_t *annot = rte_dpaa_mem_ptov(fd->addr);
uint8_t format;
if (!fd->status) {
/* Do not display correct packets.*/
return;
}
format = (fd->opaque & DPAA_FD_FORMAT_MASK) >>
DPAA_FD_FORMAT_SHIFT;
DISPLAY_PRINT("fqid %d bpid %d addr 0x%lx, format %d\r\n",
fqid, fd->bpid, (unsigned long)fd->addr, fd->format);
DISPLAY_PRINT("off %d, len %d stat 0x%x\r\n",
fd->offset, fd->length20, fd->status);
if (rx) {
ptr = (char *)&annot->parse;
DISPLAY_PRINT("RX parser result:\r\n");
for (ii = 0; ii < (int)sizeof(struct dpaa_eth_parse_results_t);
ii++) {
DISPLAY_PRINT("%02x ", ptr[ii]);
if (((ii + 1) % 16) == 0)
DISPLAY_PRINT("\n");
}
DISPLAY_PRINT("\n");
}
if (unlikely(format == qm_fd_sg)) {
/*TBD:S/G display: to be implemented*/
return;
}
DISPLAY_PRINT("Frame payload:\r\n");
ptr = (char *)annot;
ptr += fd->offset;
for (ii = 0; ii < fd->length20; ii++) {
DISPLAY_PRINT("%02x ", ptr[ii]);
if (((ii + 1) % 16) == 0)
printf("\n");
}
DISPLAY_PRINT("\n");
}
#else
#define dpaa_display_frame_info(a, b, c)
#endif
static inline void dpaa_slow_parsing(struct rte_mbuf *m __rte_unused,
uint64_t prs __rte_unused)
{
DPAA_DP_LOG(DEBUG, "Slow parsing");
/*TBD:XXX: to be implemented*/
}
static inline void dpaa_eth_packet_info(struct rte_mbuf *m, void *fd_virt_addr)
{
struct annotations_t *annot = GET_ANNOTATIONS(fd_virt_addr);
uint64_t prs = *((uintptr_t *)(&annot->parse)) & DPAA_PARSE_MASK;
DPAA_DP_LOG(DEBUG, " Parsing mbuf: %p with annotations: %p", m, annot);
m->ol_flags = PKT_RX_RSS_HASH | PKT_RX_IP_CKSUM_GOOD |
PKT_RX_L4_CKSUM_GOOD;
switch (prs) {
case DPAA_PKT_TYPE_IPV4:
m->packet_type = RTE_PTYPE_L2_ETHER |
RTE_PTYPE_L3_IPV4;
break;
case DPAA_PKT_TYPE_IPV6:
m->packet_type = RTE_PTYPE_L2_ETHER |
RTE_PTYPE_L3_IPV6;
break;
case DPAA_PKT_TYPE_ETHER:
m->packet_type = RTE_PTYPE_L2_ETHER;
break;
case DPAA_PKT_TYPE_IPV4_FRAG:
case DPAA_PKT_TYPE_IPV4_FRAG_UDP:
case DPAA_PKT_TYPE_IPV4_FRAG_TCP:
case DPAA_PKT_TYPE_IPV4_FRAG_SCTP:
m->packet_type = RTE_PTYPE_L2_ETHER |
RTE_PTYPE_L3_IPV4 | RTE_PTYPE_L4_FRAG;
break;
case DPAA_PKT_TYPE_IPV6_FRAG:
case DPAA_PKT_TYPE_IPV6_FRAG_UDP:
case DPAA_PKT_TYPE_IPV6_FRAG_TCP:
case DPAA_PKT_TYPE_IPV6_FRAG_SCTP:
m->packet_type = RTE_PTYPE_L2_ETHER |
RTE_PTYPE_L3_IPV6 | RTE_PTYPE_L4_FRAG;
break;
case DPAA_PKT_TYPE_IPV4_EXT:
m->packet_type = RTE_PTYPE_L2_ETHER |
RTE_PTYPE_L3_IPV4_EXT;
break;
case DPAA_PKT_TYPE_IPV6_EXT:
m->packet_type = RTE_PTYPE_L2_ETHER |
RTE_PTYPE_L3_IPV6_EXT;
break;
case DPAA_PKT_TYPE_IPV4_TCP:
m->packet_type = RTE_PTYPE_L2_ETHER |
RTE_PTYPE_L3_IPV4 | RTE_PTYPE_L4_TCP;
break;
case DPAA_PKT_TYPE_IPV6_TCP:
m->packet_type = RTE_PTYPE_L2_ETHER |
RTE_PTYPE_L3_IPV6 | RTE_PTYPE_L4_TCP;
break;
case DPAA_PKT_TYPE_IPV4_UDP:
m->packet_type = RTE_PTYPE_L2_ETHER |
RTE_PTYPE_L3_IPV4 | RTE_PTYPE_L4_UDP;
break;
case DPAA_PKT_TYPE_IPV6_UDP:
m->packet_type = RTE_PTYPE_L2_ETHER |
RTE_PTYPE_L3_IPV6 | RTE_PTYPE_L4_UDP;
break;
case DPAA_PKT_TYPE_IPV4_EXT_UDP:
m->packet_type = RTE_PTYPE_L2_ETHER |
RTE_PTYPE_L3_IPV4_EXT | RTE_PTYPE_L4_UDP;
break;
case DPAA_PKT_TYPE_IPV6_EXT_UDP:
m->packet_type = RTE_PTYPE_L2_ETHER |
RTE_PTYPE_L3_IPV6_EXT | RTE_PTYPE_L4_UDP;
break;
case DPAA_PKT_TYPE_IPV4_EXT_TCP:
m->packet_type = RTE_PTYPE_L2_ETHER |
RTE_PTYPE_L3_IPV4_EXT | RTE_PTYPE_L4_TCP;
break;
case DPAA_PKT_TYPE_IPV6_EXT_TCP:
m->packet_type = RTE_PTYPE_L2_ETHER |
RTE_PTYPE_L3_IPV6_EXT | RTE_PTYPE_L4_TCP;
break;
case DPAA_PKT_TYPE_IPV4_SCTP:
m->packet_type = RTE_PTYPE_L2_ETHER |
RTE_PTYPE_L3_IPV4 | RTE_PTYPE_L4_SCTP;
break;
case DPAA_PKT_TYPE_IPV6_SCTP:
m->packet_type = RTE_PTYPE_L2_ETHER |
RTE_PTYPE_L3_IPV6 | RTE_PTYPE_L4_SCTP;
break;
case DPAA_PKT_TYPE_IPV4_CSUM_ERR:
case DPAA_PKT_TYPE_IPV6_CSUM_ERR:
m->ol_flags = PKT_RX_RSS_HASH | PKT_RX_IP_CKSUM_BAD;
break;
case DPAA_PKT_TYPE_IPV4_TCP_CSUM_ERR:
case DPAA_PKT_TYPE_IPV6_TCP_CSUM_ERR:
case DPAA_PKT_TYPE_IPV4_UDP_CSUM_ERR:
case DPAA_PKT_TYPE_IPV6_UDP_CSUM_ERR:
m->ol_flags = PKT_RX_RSS_HASH | PKT_RX_L4_CKSUM_BAD;
break;
case DPAA_PKT_TYPE_NONE:
m->packet_type = 0;
break;
/* More switch cases can be added */
default:
dpaa_slow_parsing(m, prs);
}
m->tx_offload = annot->parse.ip_off[0];
m->tx_offload |= (annot->parse.l4_off - annot->parse.ip_off[0])
<< DPAA_PKT_L3_LEN_SHIFT;
/* Set the hash values */
m->hash.rss = (uint32_t)(annot->hash);
/* Check if Vlan is present */
if (prs & DPAA_PARSE_VLAN_MASK)
m->ol_flags |= PKT_RX_VLAN;
/* Packet received without stripping the vlan */
}
static inline void dpaa_checksum(struct rte_mbuf *mbuf)
{
struct rte_ether_hdr *eth_hdr =
rte_pktmbuf_mtod(mbuf, struct rte_ether_hdr *);
char *l3_hdr = (char *)eth_hdr + mbuf->l2_len;
struct rte_ipv4_hdr *ipv4_hdr = (struct rte_ipv4_hdr *)l3_hdr;
struct rte_ipv6_hdr *ipv6_hdr = (struct rte_ipv6_hdr *)l3_hdr;
DPAA_DP_LOG(DEBUG, "Calculating checksum for mbuf: %p", mbuf);
if (((mbuf->packet_type & RTE_PTYPE_L3_MASK) == RTE_PTYPE_L3_IPV4) ||
((mbuf->packet_type & RTE_PTYPE_L3_MASK) ==
RTE_PTYPE_L3_IPV4_EXT)) {
ipv4_hdr = (struct rte_ipv4_hdr *)l3_hdr;
ipv4_hdr->hdr_checksum = 0;
ipv4_hdr->hdr_checksum = rte_ipv4_cksum(ipv4_hdr);
} else if (((mbuf->packet_type & RTE_PTYPE_L3_MASK) ==
RTE_PTYPE_L3_IPV6) ||
((mbuf->packet_type & RTE_PTYPE_L3_MASK) ==
RTE_PTYPE_L3_IPV6_EXT))
ipv6_hdr = (struct rte_ipv6_hdr *)l3_hdr;
if ((mbuf->packet_type & RTE_PTYPE_L4_MASK) == RTE_PTYPE_L4_TCP) {
struct rte_tcp_hdr *tcp_hdr = (struct rte_tcp_hdr *)(l3_hdr +
mbuf->l3_len);
tcp_hdr->cksum = 0;
if (eth_hdr->ether_type == htons(RTE_ETHER_TYPE_IPV4))
tcp_hdr->cksum = rte_ipv4_udptcp_cksum(ipv4_hdr,
tcp_hdr);
else /* assume ethertype == RTE_ETHER_TYPE_IPV6 */
tcp_hdr->cksum = rte_ipv6_udptcp_cksum(ipv6_hdr,
tcp_hdr);
} else if ((mbuf->packet_type & RTE_PTYPE_L4_MASK) ==
RTE_PTYPE_L4_UDP) {
struct rte_udp_hdr *udp_hdr = (struct rte_udp_hdr *)(l3_hdr +
mbuf->l3_len);
udp_hdr->dgram_cksum = 0;
if (eth_hdr->ether_type == htons(RTE_ETHER_TYPE_IPV4))
udp_hdr->dgram_cksum = rte_ipv4_udptcp_cksum(ipv4_hdr,
udp_hdr);
else /* assume ethertype == RTE_ETHER_TYPE_IPV6 */
udp_hdr->dgram_cksum = rte_ipv6_udptcp_cksum(ipv6_hdr,
udp_hdr);
}
}
static inline void dpaa_checksum_offload(struct rte_mbuf *mbuf,
struct qm_fd *fd, char *prs_buf)
{
struct dpaa_eth_parse_results_t *prs;
DPAA_DP_LOG(DEBUG, " Offloading checksum for mbuf: %p", mbuf);
prs = GET_TX_PRS(prs_buf);
prs->l3r = 0;
prs->l4r = 0;
if (((mbuf->packet_type & RTE_PTYPE_L3_MASK) == RTE_PTYPE_L3_IPV4) ||
((mbuf->packet_type & RTE_PTYPE_L3_MASK) ==
RTE_PTYPE_L3_IPV4_EXT))
prs->l3r = DPAA_L3_PARSE_RESULT_IPV4;
else if (((mbuf->packet_type & RTE_PTYPE_L3_MASK) ==
RTE_PTYPE_L3_IPV6) ||
((mbuf->packet_type & RTE_PTYPE_L3_MASK) ==
RTE_PTYPE_L3_IPV6_EXT))
prs->l3r = DPAA_L3_PARSE_RESULT_IPV6;
if ((mbuf->packet_type & RTE_PTYPE_L4_MASK) == RTE_PTYPE_L4_TCP)
prs->l4r = DPAA_L4_PARSE_RESULT_TCP;
else if ((mbuf->packet_type & RTE_PTYPE_L4_MASK) == RTE_PTYPE_L4_UDP)
prs->l4r = DPAA_L4_PARSE_RESULT_UDP;
prs->ip_off[0] = mbuf->l2_len;
prs->l4_off = mbuf->l3_len + mbuf->l2_len;
/* Enable L3 (and L4, if TCP or UDP) HW checksum*/
fd->cmd = DPAA_FD_CMD_RPD | DPAA_FD_CMD_DTC;
}
static inline void
dpaa_unsegmented_checksum(struct rte_mbuf *mbuf, struct qm_fd *fd_arr)
{
if (!mbuf->packet_type) {
struct rte_net_hdr_lens hdr_lens;
mbuf->packet_type = rte_net_get_ptype(mbuf, &hdr_lens,
RTE_PTYPE_L2_MASK | RTE_PTYPE_L3_MASK
| RTE_PTYPE_L4_MASK);
mbuf->l2_len = hdr_lens.l2_len;
mbuf->l3_len = hdr_lens.l3_len;
}
if (mbuf->data_off < (DEFAULT_TX_ICEOF +
sizeof(struct dpaa_eth_parse_results_t))) {
DPAA_DP_LOG(DEBUG, "Checksum offload Err: "
"Not enough Headroom "
"space for correct Checksum offload."
"So Calculating checksum in Software.");
dpaa_checksum(mbuf);
} else {
dpaa_checksum_offload(mbuf, fd_arr, mbuf->buf_addr);
}
}
static struct rte_mbuf *
dpaa_eth_sg_to_mbuf(const struct qm_fd *fd, uint32_t ifid)
{
struct dpaa_bp_info *bp_info = DPAA_BPID_TO_POOL_INFO(fd->bpid);
struct rte_mbuf *first_seg, *prev_seg, *cur_seg, *temp;
struct qm_sg_entry *sgt, *sg_temp;
void *vaddr, *sg_vaddr;
int i = 0;
uint16_t fd_offset = fd->offset;
vaddr = DPAA_MEMPOOL_PTOV(bp_info, qm_fd_addr(fd));
if (!vaddr) {
DPAA_PMD_ERR("unable to convert physical address");
return NULL;
}
sgt = vaddr + fd_offset;
sg_temp = &sgt[i++];
hw_sg_to_cpu(sg_temp);
temp = (struct rte_mbuf *)((char *)vaddr - bp_info->meta_data_size);
sg_vaddr = DPAA_MEMPOOL_PTOV(bp_info, qm_sg_entry_get64(sg_temp));
first_seg = (struct rte_mbuf *)((char *)sg_vaddr -
bp_info->meta_data_size);
first_seg->data_off = sg_temp->offset;
first_seg->data_len = sg_temp->length;
first_seg->pkt_len = sg_temp->length;
rte_mbuf_refcnt_set(first_seg, 1);
first_seg->port = ifid;
first_seg->nb_segs = 1;
first_seg->ol_flags = 0;
prev_seg = first_seg;
while (i < DPAA_SGT_MAX_ENTRIES) {
sg_temp = &sgt[i++];
hw_sg_to_cpu(sg_temp);
sg_vaddr = DPAA_MEMPOOL_PTOV(bp_info,
qm_sg_entry_get64(sg_temp));
cur_seg = (struct rte_mbuf *)((char *)sg_vaddr -
bp_info->meta_data_size);
cur_seg->data_off = sg_temp->offset;
cur_seg->data_len = sg_temp->length;
first_seg->pkt_len += sg_temp->length;
first_seg->nb_segs += 1;
rte_mbuf_refcnt_set(cur_seg, 1);
prev_seg->next = cur_seg;
if (sg_temp->final) {
cur_seg->next = NULL;
break;
}
prev_seg = cur_seg;
}
DPAA_DP_LOG(DEBUG, "Received an SG frame len =%d, num_sg =%d",
first_seg->pkt_len, first_seg->nb_segs);
dpaa_eth_packet_info(first_seg, vaddr);
rte_pktmbuf_free_seg(temp);
return first_seg;
}
static inline struct rte_mbuf *
dpaa_eth_fd_to_mbuf(const struct qm_fd *fd, uint32_t ifid)
{
struct rte_mbuf *mbuf;
struct dpaa_bp_info *bp_info = DPAA_BPID_TO_POOL_INFO(fd->bpid);
void *ptr;
uint8_t format =
(fd->opaque & DPAA_FD_FORMAT_MASK) >> DPAA_FD_FORMAT_SHIFT;
uint16_t offset;
uint32_t length;
if (unlikely(format == qm_fd_sg))
return dpaa_eth_sg_to_mbuf(fd, ifid);
offset = (fd->opaque & DPAA_FD_OFFSET_MASK) >> DPAA_FD_OFFSET_SHIFT;
length = fd->opaque & DPAA_FD_LENGTH_MASK;
DPAA_DP_LOG(DEBUG, " FD--->MBUF off %d len = %d", offset, length);
/* Ignoring case when format != qm_fd_contig */
ptr = DPAA_MEMPOOL_PTOV(bp_info, qm_fd_addr(fd));
mbuf = (struct rte_mbuf *)((char *)ptr - bp_info->meta_data_size);
/* Prefetch the Parse results and packet data to L1 */
rte_prefetch0((void *)((uint8_t *)ptr + DEFAULT_RX_ICEOF));
mbuf->data_off = offset;
mbuf->data_len = length;
mbuf->pkt_len = length;
mbuf->port = ifid;
mbuf->nb_segs = 1;
mbuf->ol_flags = 0;
mbuf->next = NULL;
rte_mbuf_refcnt_set(mbuf, 1);
dpaa_eth_packet_info(mbuf, mbuf->buf_addr);
return mbuf;
}
uint16_t
dpaa_free_mbuf(const struct qm_fd *fd)
{
struct rte_mbuf *mbuf;
struct dpaa_bp_info *bp_info;
uint8_t format;
void *ptr;
bp_info = DPAA_BPID_TO_POOL_INFO(fd->bpid);
format = (fd->opaque & DPAA_FD_FORMAT_MASK) >> DPAA_FD_FORMAT_SHIFT;
if (unlikely(format == qm_fd_sg)) {
struct rte_mbuf *first_seg, *prev_seg, *cur_seg, *temp;
struct qm_sg_entry *sgt, *sg_temp;
void *vaddr, *sg_vaddr;
int i = 0;
uint16_t fd_offset = fd->offset;
vaddr = DPAA_MEMPOOL_PTOV(bp_info, qm_fd_addr(fd));
if (!vaddr) {
DPAA_PMD_ERR("unable to convert physical address");
return -1;
}
sgt = vaddr + fd_offset;
sg_temp = &sgt[i++];
hw_sg_to_cpu(sg_temp);
temp = (struct rte_mbuf *)
((char *)vaddr - bp_info->meta_data_size);
sg_vaddr = DPAA_MEMPOOL_PTOV(bp_info,
qm_sg_entry_get64(sg_temp));
first_seg = (struct rte_mbuf *)((char *)sg_vaddr -
bp_info->meta_data_size);
first_seg->nb_segs = 1;
prev_seg = first_seg;
while (i < DPAA_SGT_MAX_ENTRIES) {
sg_temp = &sgt[i++];
hw_sg_to_cpu(sg_temp);
sg_vaddr = DPAA_MEMPOOL_PTOV(bp_info,
qm_sg_entry_get64(sg_temp));
cur_seg = (struct rte_mbuf *)((char *)sg_vaddr -
bp_info->meta_data_size);
first_seg->nb_segs += 1;
prev_seg->next = cur_seg;
if (sg_temp->final) {
cur_seg->next = NULL;
break;
}
prev_seg = cur_seg;
}
rte_pktmbuf_free_seg(temp);
rte_pktmbuf_free_seg(first_seg);
return 0;
}
ptr = DPAA_MEMPOOL_PTOV(bp_info, qm_fd_addr(fd));
mbuf = (struct rte_mbuf *)((char *)ptr - bp_info->meta_data_size);
rte_pktmbuf_free(mbuf);
return 0;
}
/* Specific for LS1043 */
void
dpaa_rx_cb_no_prefetch(struct qman_fq **fq, struct qm_dqrr_entry **dqrr,
void **bufs, int num_bufs)
{
struct rte_mbuf *mbuf;
struct dpaa_bp_info *bp_info;
const struct qm_fd *fd;
void *ptr;
struct dpaa_if *dpaa_intf;
uint16_t offset, i;
uint32_t length;
uint8_t format;
bp_info = DPAA_BPID_TO_POOL_INFO(dqrr[0]->fd.bpid);
ptr = rte_dpaa_mem_ptov(qm_fd_addr(&dqrr[0]->fd));
rte_prefetch0((void *)((uint8_t *)ptr + DEFAULT_RX_ICEOF));
bufs[0] = (struct rte_mbuf *)((char *)ptr - bp_info->meta_data_size);
for (i = 0; i < num_bufs; i++) {
if (i < num_bufs - 1) {
bp_info = DPAA_BPID_TO_POOL_INFO(dqrr[i + 1]->fd.bpid);
ptr = rte_dpaa_mem_ptov(qm_fd_addr(&dqrr[i + 1]->fd));
rte_prefetch0((void *)((uint8_t *)ptr +
DEFAULT_RX_ICEOF));
bufs[i + 1] = (struct rte_mbuf *)((char *)ptr -
bp_info->meta_data_size);
}
fd = &dqrr[i]->fd;
dpaa_intf = fq[0]->dpaa_intf;
format = (fd->opaque & DPAA_FD_FORMAT_MASK) >>
DPAA_FD_FORMAT_SHIFT;
if (unlikely(format == qm_fd_sg)) {
bufs[i] = dpaa_eth_sg_to_mbuf(fd, dpaa_intf->ifid);
continue;
}
offset = (fd->opaque & DPAA_FD_OFFSET_MASK) >>
DPAA_FD_OFFSET_SHIFT;
length = fd->opaque & DPAA_FD_LENGTH_MASK;
mbuf = bufs[i];
mbuf->data_off = offset;
mbuf->data_len = length;
mbuf->pkt_len = length;
mbuf->port = dpaa_intf->ifid;
mbuf->nb_segs = 1;
mbuf->ol_flags = 0;
mbuf->next = NULL;
rte_mbuf_refcnt_set(mbuf, 1);
dpaa_eth_packet_info(mbuf, mbuf->buf_addr);
dpaa_display_frame_info(fd, fq[0]->fqid, true);
}
}
void
dpaa_rx_cb(struct qman_fq **fq, struct qm_dqrr_entry **dqrr,
void **bufs, int num_bufs)
{
struct rte_mbuf *mbuf;
const struct qm_fd *fd;
struct dpaa_if *dpaa_intf;
uint16_t offset, i;
uint32_t length;
uint8_t format;
for (i = 0; i < num_bufs; i++) {
fd = &dqrr[i]->fd;
dpaa_intf = fq[0]->dpaa_intf;
format = (fd->opaque & DPAA_FD_FORMAT_MASK) >>
DPAA_FD_FORMAT_SHIFT;
if (unlikely(format == qm_fd_sg)) {
bufs[i] = dpaa_eth_sg_to_mbuf(fd, dpaa_intf->ifid);
continue;
}
offset = (fd->opaque & DPAA_FD_OFFSET_MASK) >>
DPAA_FD_OFFSET_SHIFT;
length = fd->opaque & DPAA_FD_LENGTH_MASK;
mbuf = bufs[i];
mbuf->data_off = offset;
mbuf->data_len = length;
mbuf->pkt_len = length;
mbuf->port = dpaa_intf->ifid;
mbuf->nb_segs = 1;
mbuf->ol_flags = 0;
mbuf->next = NULL;
rte_mbuf_refcnt_set(mbuf, 1);
dpaa_eth_packet_info(mbuf, mbuf->buf_addr);
dpaa_display_frame_info(fd, fq[0]->fqid, true);
}
}
void dpaa_rx_cb_prepare(struct qm_dqrr_entry *dq, void **bufs)
{
struct dpaa_bp_info *bp_info = DPAA_BPID_TO_POOL_INFO(dq->fd.bpid);
void *ptr = rte_dpaa_mem_ptov(qm_fd_addr(&dq->fd));
/* In case of LS1046, annotation stashing is disabled due to L2 cache
* being bottleneck in case of multicore scanario for this platform.
* So we prefetch the annoation beforehand, so that it is available
* in cache when accessed.
*/
rte_prefetch0((void *)((uint8_t *)ptr + DEFAULT_RX_ICEOF));
*bufs = (struct rte_mbuf *)((char *)ptr - bp_info->meta_data_size);
}
static uint16_t
dpaa_eth_queue_portal_rx(struct qman_fq *fq,
struct rte_mbuf **bufs,
uint16_t nb_bufs)
{
int ret;
if (unlikely(!fq->qp_initialized)) {
ret = rte_dpaa_portal_fq_init((void *)0, fq);
if (ret) {
DPAA_PMD_ERR("Failure in affining portal %d", ret);
return 0;
}
fq->qp_initialized = 1;
}
return qman_portal_poll_rx(nb_bufs, (void **)bufs, fq->qp);
}
enum qman_cb_dqrr_result
dpaa_rx_cb_parallel(void *event,
struct qman_portal *qm __always_unused,
struct qman_fq *fq,
const struct qm_dqrr_entry *dqrr,
void **bufs)
{
u32 ifid = ((struct dpaa_if *)fq->dpaa_intf)->ifid;
struct rte_mbuf *mbuf;
struct rte_event *ev = (struct rte_event *)event;
mbuf = dpaa_eth_fd_to_mbuf(&dqrr->fd, ifid);
ev->event_ptr = (void *)mbuf;
ev->flow_id = fq->ev.flow_id;
ev->sub_event_type = fq->ev.sub_event_type;
ev->event_type = RTE_EVENT_TYPE_ETHDEV;
ev->op = RTE_EVENT_OP_NEW;
ev->sched_type = fq->ev.sched_type;
ev->queue_id = fq->ev.queue_id;
ev->priority = fq->ev.priority;
ev->impl_opaque = (uint8_t)DPAA_INVALID_MBUF_SEQN;
*dpaa_seqn(mbuf) = DPAA_INVALID_MBUF_SEQN;
*bufs = mbuf;
return qman_cb_dqrr_consume;
}
enum qman_cb_dqrr_result
dpaa_rx_cb_atomic(void *event,
struct qman_portal *qm __always_unused,
struct qman_fq *fq,
const struct qm_dqrr_entry *dqrr,
void **bufs)
{
u8 index;
u32 ifid = ((struct dpaa_if *)fq->dpaa_intf)->ifid;
struct rte_mbuf *mbuf;
struct rte_event *ev = (struct rte_event *)event;
mbuf = dpaa_eth_fd_to_mbuf(&dqrr->fd, ifid);
ev->event_ptr = (void *)mbuf;
ev->flow_id = fq->ev.flow_id;
ev->sub_event_type = fq->ev.sub_event_type;
ev->event_type = RTE_EVENT_TYPE_ETHDEV;
ev->op = RTE_EVENT_OP_NEW;
ev->sched_type = fq->ev.sched_type;
ev->queue_id = fq->ev.queue_id;
ev->priority = fq->ev.priority;
/* Save active dqrr entries */
index = DQRR_PTR2IDX(dqrr);
DPAA_PER_LCORE_DQRR_SIZE++;
DPAA_PER_LCORE_DQRR_HELD |= 1 << index;
DPAA_PER_LCORE_DQRR_MBUF(index) = mbuf;
ev->impl_opaque = index + 1;
*dpaa_seqn(mbuf) = (uint32_t)index + 1;
*bufs = mbuf;
return qman_cb_dqrr_defer;
}
#ifdef RTE_LIBRTE_DPAA_DEBUG_DRIVER
static inline void dpaa_eth_err_queue(struct dpaa_if *dpaa_intf)
{
struct rte_mbuf *mbuf;
struct qman_fq *debug_fq;
int ret, i;
struct qm_dqrr_entry *dq;
struct qm_fd *fd;
if (unlikely(!RTE_PER_LCORE(dpaa_io))) {
ret = rte_dpaa_portal_init((void *)0);
if (ret) {
DPAA_PMD_ERR("Failure in affining portal");
return;
}
}
for (i = 0; i <= DPAA_DEBUG_FQ_TX_ERROR; i++) {
debug_fq = &dpaa_intf->debug_queues[i];
ret = qman_set_vdq(debug_fq, 4, QM_VDQCR_EXACT);
if (ret)
return;
do {
dq = qman_dequeue(debug_fq);
if (!dq)
continue;
fd = &dq->fd;
if (i == DPAA_DEBUG_FQ_RX_ERROR)
DPAA_PMD_ERR("RX ERROR status: 0x%08x",
fd->status);
else
DPAA_PMD_ERR("TX ERROR status: 0x%08x",
fd->status);
dpaa_display_frame_info(fd, debug_fq->fqid,
i == DPAA_DEBUG_FQ_RX_ERROR);
mbuf = dpaa_eth_fd_to_mbuf(fd, dpaa_intf->ifid);
rte_pktmbuf_free(mbuf);
qman_dqrr_consume(debug_fq, dq);
} while (debug_fq->flags & QMAN_FQ_STATE_VDQCR);
}
}
#endif
uint16_t dpaa_eth_queue_rx(void *q,
struct rte_mbuf **bufs,
uint16_t nb_bufs)
{
struct qman_fq *fq = q;
struct qm_dqrr_entry *dq;
uint32_t num_rx = 0, ifid = ((struct dpaa_if *)fq->dpaa_intf)->ifid;
int num_rx_bufs, ret;
uint32_t vdqcr_flags = 0;
if (unlikely(rte_dpaa_bpid_info == NULL &&
rte_eal_process_type() == RTE_PROC_SECONDARY))
rte_dpaa_bpid_info = fq->bp_array;
#ifdef RTE_LIBRTE_DPAA_DEBUG_DRIVER
if (fq->fqid == ((struct dpaa_if *)fq->dpaa_intf)->rx_queues[0].fqid)
dpaa_eth_err_queue((struct dpaa_if *)fq->dpaa_intf);
#endif
if (likely(fq->is_static))
return dpaa_eth_queue_portal_rx(fq, bufs, nb_bufs);
if (unlikely(!DPAA_PER_LCORE_PORTAL)) {
ret = rte_dpaa_portal_init((void *)0);
if (ret) {
DPAA_PMD_ERR("Failure in affining portal");
return 0;
}
}
/* Until request for four buffers, we provide exact number of buffers.
* Otherwise we do not set the QM_VDQCR_EXACT flag.
* Not setting QM_VDQCR_EXACT flag can provide two more buffers than
* requested, so we request two less in this case.
*/
if (nb_bufs < 4) {
vdqcr_flags = QM_VDQCR_EXACT;
num_rx_bufs = nb_bufs;
} else {
num_rx_bufs = nb_bufs > DPAA_MAX_DEQUEUE_NUM_FRAMES ?
(DPAA_MAX_DEQUEUE_NUM_FRAMES - 2) : (nb_bufs - 2);
}
ret = qman_set_vdq(fq, num_rx_bufs, vdqcr_flags);
if (ret)
return 0;
do {
dq = qman_dequeue(fq);
if (!dq)
continue;
bufs[num_rx++] = dpaa_eth_fd_to_mbuf(&dq->fd, ifid);
dpaa_display_frame_info(&dq->fd, fq->fqid, true);
qman_dqrr_consume(fq, dq);
} while (fq->flags & QMAN_FQ_STATE_VDQCR);
return num_rx;
}
static int
dpaa_eth_mbuf_to_sg_fd(struct rte_mbuf *mbuf,
struct qm_fd *fd,
struct dpaa_bp_info *bp_info)
{
struct rte_mbuf *cur_seg = mbuf, *prev_seg = NULL;
struct rte_mbuf *temp, *mi;
struct qm_sg_entry *sg_temp, *sgt;
int i = 0;
DPAA_DP_LOG(DEBUG, "Creating SG FD to transmit");
temp = rte_pktmbuf_alloc(bp_info->mp);
if (!temp) {
DPAA_PMD_ERR("Failure in allocation of mbuf");
return -1;
}
if (temp->buf_len < ((mbuf->nb_segs * sizeof(struct qm_sg_entry))
+ temp->data_off)) {
DPAA_PMD_ERR("Insufficient space in mbuf for SG entries");
return -1;
}
fd->cmd = 0;
fd->opaque_addr = 0;
if (mbuf->ol_flags & DPAA_TX_CKSUM_OFFLOAD_MASK) {
if (!mbuf->packet_type) {
struct rte_net_hdr_lens hdr_lens;
mbuf->packet_type = rte_net_get_ptype(mbuf, &hdr_lens,
RTE_PTYPE_L2_MASK | RTE_PTYPE_L3_MASK
| RTE_PTYPE_L4_MASK);
mbuf->l2_len = hdr_lens.l2_len;
mbuf->l3_len = hdr_lens.l3_len;
}
if (temp->data_off < DEFAULT_TX_ICEOF
+ sizeof(struct dpaa_eth_parse_results_t))
temp->data_off = DEFAULT_TX_ICEOF
+ sizeof(struct dpaa_eth_parse_results_t);
dcbz_64(temp->buf_addr);
dpaa_checksum_offload(mbuf, fd, temp->buf_addr);
}
sgt = temp->buf_addr + temp->data_off;
fd->format = QM_FD_SG;
fd->addr = temp->buf_iova;
fd->offset = temp->data_off;
fd->bpid = bp_info ? bp_info->bpid : 0xff;
fd->length20 = mbuf->pkt_len;
while (i < DPAA_SGT_MAX_ENTRIES) {
sg_temp = &sgt[i++];
sg_temp->opaque = 0;
sg_temp->val = 0;
sg_temp->addr = cur_seg->buf_iova;
sg_temp->offset = cur_seg->data_off;
sg_temp->length = cur_seg->data_len;
if (RTE_MBUF_DIRECT(cur_seg)) {
if (rte_mbuf_refcnt_read(cur_seg) > 1) {
/*If refcnt > 1, invalid bpid is set to ensure
* buffer is not freed by HW.
*/
sg_temp->bpid = 0xff;
rte_mbuf_refcnt_update(cur_seg, -1);
} else {
sg_temp->bpid =
DPAA_MEMPOOL_TO_BPID(cur_seg->pool);
}
cur_seg = cur_seg->next;
} else if (RTE_MBUF_HAS_EXTBUF(cur_seg)) {
sg_temp->bpid = 0xff;
cur_seg = cur_seg->next;
} else {
/* Get owner MBUF from indirect buffer */
mi = rte_mbuf_from_indirect(cur_seg);
if (rte_mbuf_refcnt_read(mi) > 1) {
/*If refcnt > 1, invalid bpid is set to ensure
* owner buffer is not freed by HW.
*/
sg_temp->bpid = 0xff;
} else {
sg_temp->bpid = DPAA_MEMPOOL_TO_BPID(mi->pool);
rte_mbuf_refcnt_update(mi, 1);
}
prev_seg = cur_seg;
cur_seg = cur_seg->next;
prev_seg->next = NULL;
rte_pktmbuf_free(prev_seg);
}
if (cur_seg == NULL) {
sg_temp->final = 1;
cpu_to_hw_sg(sg_temp);
break;
}
cpu_to_hw_sg(sg_temp);
}
return 0;
}
/* Handle mbufs which are not segmented (non SG) */
static inline void
tx_on_dpaa_pool_unsegmented(struct rte_mbuf *mbuf,
struct dpaa_bp_info *bp_info,
struct qm_fd *fd_arr)
{
struct rte_mbuf *mi = NULL;
if (RTE_MBUF_DIRECT(mbuf)) {
if (rte_mbuf_refcnt_read(mbuf) > 1) {
/* In case of direct mbuf and mbuf being cloned,
* BMAN should _not_ release buffer.
*/
DPAA_MBUF_TO_CONTIG_FD(mbuf, fd_arr, 0xff);
/* Buffer should be releasd by EAL */
rte_mbuf_refcnt_update(mbuf, -1);
} else {
/* In case of direct mbuf and no cloning, mbuf can be
* released by BMAN.
*/
DPAA_MBUF_TO_CONTIG_FD(mbuf, fd_arr, bp_info->bpid);
}
} else if (RTE_MBUF_HAS_EXTBUF(mbuf)) {
DPAA_MBUF_TO_CONTIG_FD(mbuf, fd_arr,
bp_info ? bp_info->bpid : 0xff);
} else {
/* This is data-containing core mbuf: 'mi' */
mi = rte_mbuf_from_indirect(mbuf);
if (rte_mbuf_refcnt_read(mi) > 1) {
/* In case of indirect mbuf, and mbuf being cloned,
* BMAN should _not_ release it and let EAL release
* it through pktmbuf_free below.
*/
DPAA_MBUF_TO_CONTIG_FD(mbuf, fd_arr, 0xff);
} else {
/* In case of indirect mbuf, and no cloning, core mbuf
* should be released by BMAN.
* Increate refcnt of core mbuf so that when
* pktmbuf_free is called and mbuf is released, EAL
* doesn't try to release core mbuf which would have
* been released by BMAN.
*/
rte_mbuf_refcnt_update(mi, 1);
DPAA_MBUF_TO_CONTIG_FD(mbuf, fd_arr,
bp_info ? bp_info->bpid : 0xff);
}
rte_pktmbuf_free(mbuf);
}
if (mbuf->ol_flags & DPAA_TX_CKSUM_OFFLOAD_MASK)
dpaa_unsegmented_checksum(mbuf, fd_arr);
}
/* Handle all mbufs on dpaa BMAN managed pool */
static inline uint16_t
tx_on_dpaa_pool(struct rte_mbuf *mbuf,
struct dpaa_bp_info *bp_info,
struct qm_fd *fd_arr)
{
DPAA_DP_LOG(DEBUG, "BMAN offloaded buffer, mbuf: %p", mbuf);
if (mbuf->nb_segs == 1) {
/* Case for non-segmented buffers */
tx_on_dpaa_pool_unsegmented(mbuf, bp_info, fd_arr);
} else if (mbuf->nb_segs > 1 &&
mbuf->nb_segs <= DPAA_SGT_MAX_ENTRIES) {
if (dpaa_eth_mbuf_to_sg_fd(mbuf, fd_arr, bp_info)) {
DPAA_PMD_DEBUG("Unable to create Scatter Gather FD");
return 1;
}
} else {
DPAA_PMD_DEBUG("Number of Segments not supported");
return 1;
}
return 0;
}
/* Handle all mbufs on an external pool (non-dpaa) */
static inline struct rte_mbuf *
reallocate_mbuf(struct qman_fq *txq, struct rte_mbuf *mbuf)
{
struct dpaa_if *dpaa_intf = txq->dpaa_intf;
struct dpaa_bp_info *bp_info = dpaa_intf->bp_info;
struct rte_mbuf *new_mbufs[DPAA_SGT_MAX_ENTRIES + 1] = {0};
struct rte_mbuf *temp_mbuf;
int num_new_segs, mbuf_greater, ret, extra_seg = 0, i = 0;
uint64_t mbufs_size, bytes_to_copy, offset1 = 0, offset2 = 0;
char *data;
DPAA_DP_LOG(DEBUG, "Reallocating transmit buffer");
mbufs_size = bp_info->size -
bp_info->meta_data_size - RTE_PKTMBUF_HEADROOM;
extra_seg = !!(mbuf->pkt_len % mbufs_size);
num_new_segs = (mbuf->pkt_len / mbufs_size) + extra_seg;
ret = rte_pktmbuf_alloc_bulk(bp_info->mp, new_mbufs, num_new_segs);
if (ret != 0) {
DPAA_DP_LOG(DEBUG, "Allocation for new buffers failed");
return NULL;
}
temp_mbuf = mbuf;
while (temp_mbuf) {
/* If mbuf data is less than new mbuf remaining memory */
if ((temp_mbuf->data_len - offset1) < (mbufs_size - offset2)) {
bytes_to_copy = temp_mbuf->data_len - offset1;
mbuf_greater = -1;
/* If mbuf data is greater than new mbuf remaining memory */
} else if ((temp_mbuf->data_len - offset1) >
(mbufs_size - offset2)) {
bytes_to_copy = mbufs_size - offset2;
mbuf_greater = 1;
/* if mbuf data is equal to new mbuf remaining memory */
} else {
bytes_to_copy = temp_mbuf->data_len - offset1;
mbuf_greater = 0;
}
/* Copy the data */
data = rte_pktmbuf_append(new_mbufs[0], bytes_to_copy);
rte_memcpy((uint8_t *)data, rte_pktmbuf_mtod_offset(mbuf,
void *, offset1), bytes_to_copy);
/* Set new offsets and the temp buffers */
if (mbuf_greater == -1) {
offset1 = 0;
offset2 += bytes_to_copy;
temp_mbuf = temp_mbuf->next;
} else if (mbuf_greater == 1) {
offset2 = 0;
offset1 += bytes_to_copy;
new_mbufs[i]->next = new_mbufs[i + 1];
new_mbufs[0]->nb_segs++;
i++;
} else {
offset1 = 0;
offset2 = 0;
temp_mbuf = temp_mbuf->next;
new_mbufs[i]->next = new_mbufs[i + 1];
if (new_mbufs[i + 1])
new_mbufs[0]->nb_segs++;
i++;
}
}
/* Copy other required fields */
new_mbufs[0]->ol_flags = mbuf->ol_flags;
new_mbufs[0]->packet_type = mbuf->packet_type;
new_mbufs[0]->tx_offload = mbuf->tx_offload;
rte_pktmbuf_free(mbuf);
return new_mbufs[0];
}
uint16_t
dpaa_eth_queue_tx(void *q, struct rte_mbuf **bufs, uint16_t nb_bufs)
{
struct rte_mbuf *mbuf, *mi = NULL;
struct rte_mempool *mp;
struct dpaa_bp_info *bp_info;
struct qm_fd fd_arr[DPAA_TX_BURST_SIZE];
uint32_t frames_to_send, loop, sent = 0;
uint16_t state;
int ret, realloc_mbuf = 0;
uint32_t seqn, index, flags[DPAA_TX_BURST_SIZE] = {0};
struct rte_mbuf **orig_bufs = bufs;
if (unlikely(!DPAA_PER_LCORE_PORTAL)) {
ret = rte_dpaa_portal_init((void *)0);
if (ret) {
DPAA_PMD_ERR("Failure in affining portal");
return 0;
}
}
DPAA_DP_LOG(DEBUG, "Transmitting %d buffers on queue: %p", nb_bufs, q);
while (nb_bufs) {
frames_to_send = (nb_bufs > DPAA_TX_BURST_SIZE) ?
DPAA_TX_BURST_SIZE : nb_bufs;
for (loop = 0; loop < frames_to_send; loop++) {
mbuf = *(bufs++);
/* In case the data offset is not multiple of 16,
* FMAN can stall because of an errata. So reallocate
* the buffer in such case.
*/
if (dpaa_svr_family == SVR_LS1043A_FAMILY &&
(mbuf->data_off & 0x7F) != 0x0)
realloc_mbuf = 1;
seqn = *dpaa_seqn(mbuf);
if (seqn != DPAA_INVALID_MBUF_SEQN) {
index = seqn - 1;
if (DPAA_PER_LCORE_DQRR_HELD & (1 << index)) {
flags[loop] =
((index & QM_EQCR_DCA_IDXMASK) << 8);
flags[loop] |= QMAN_ENQUEUE_FLAG_DCA;
DPAA_PER_LCORE_DQRR_SIZE--;
DPAA_PER_LCORE_DQRR_HELD &=
~(1 << index);
}
}
if (likely(RTE_MBUF_DIRECT(mbuf))) {
mp = mbuf->pool;
bp_info = DPAA_MEMPOOL_TO_POOL_INFO(mp);
if (likely(mp->ops_index ==
bp_info->dpaa_ops_index &&
mbuf->nb_segs == 1 &&
realloc_mbuf == 0 &&
rte_mbuf_refcnt_read(mbuf) == 1)) {
DPAA_MBUF_TO_CONTIG_FD(mbuf,
&fd_arr[loop], bp_info->bpid);
if (mbuf->ol_flags &
DPAA_TX_CKSUM_OFFLOAD_MASK)
dpaa_unsegmented_checksum(mbuf,
&fd_arr[loop]);
continue;
}
} else {
mi = rte_mbuf_from_indirect(mbuf);
mp = mi->pool;
}
if (unlikely(RTE_MBUF_HAS_EXTBUF(mbuf))) {
bp_info = NULL;
goto indirect_buf;
}
bp_info = DPAA_MEMPOOL_TO_POOL_INFO(mp);
if (unlikely(mp->ops_index != bp_info->dpaa_ops_index ||
realloc_mbuf == 1)) {
struct rte_mbuf *temp_mbuf;
temp_mbuf = reallocate_mbuf(q, mbuf);
if (!temp_mbuf) {
/* Set frames_to_send & nb_bufs so
* that packets are transmitted till
* previous frame.
*/
frames_to_send = loop;
nb_bufs = loop;
goto send_pkts;
}
mbuf = temp_mbuf;
realloc_mbuf = 0;
}
indirect_buf:
state = tx_on_dpaa_pool(mbuf, bp_info,
&fd_arr[loop]);
if (unlikely(state)) {
/* Set frames_to_send & nb_bufs so
* that packets are transmitted till
* previous frame.
*/
frames_to_send = loop;
nb_bufs = loop;
goto send_pkts;
}
}
send_pkts:
loop = 0;
while (loop < frames_to_send) {
loop += qman_enqueue_multi(q, &fd_arr[loop],
&flags[loop],
frames_to_send - loop);
}
nb_bufs -= frames_to_send;
sent += frames_to_send;
}
DPAA_DP_LOG(DEBUG, "Transmitted %d buffers on queue: %p", sent, q);
loop = 0;
while (loop < sent) {
if (unlikely(RTE_MBUF_HAS_EXTBUF(*orig_bufs)))
rte_pktmbuf_free(*orig_bufs);
orig_bufs++;
loop++;
}
return sent;
}
uint16_t
dpaa_eth_queue_tx_slow(void *q, struct rte_mbuf **bufs, uint16_t nb_bufs)
{
qman_ern_poll_free();
return dpaa_eth_queue_tx(q, bufs, nb_bufs);
}
uint16_t dpaa_eth_tx_drop_all(void *q __rte_unused,
struct rte_mbuf **bufs __rte_unused,
uint16_t nb_bufs __rte_unused)
{
DPAA_DP_LOG(DEBUG, "Drop all packets");
/* Drop all incoming packets. No need to free packets here
* because the rte_eth f/w frees up the packets through tx_buffer
* callback in case this functions returns count less than nb_bufs
*/
return 0;
}
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