--- /dev/null
+/*-
+ * BSD LICENSE
+ *
+ * Copyright 2016 Freescale Semiconductor, Inc. All rights reserved.
+ * Copyright 2017 NXP.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * * Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in
+ * the documentation and/or other materials provided with the
+ * distribution.
+ * * Neither the name of Freescale Semiconductor, Inc nor the names of its
+ * contributors may be used to endorse or promote products derived
+ * from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+/* 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 <rte_ethdev.h>
+#include <rte_malloc.h>
+#include <rte_ring.h>
+#include <rte_ip.h>
+#include <rte_tcp.h>
+#include <rte_udp.h>
+
+#include "dpaa_ethdev.h"
+#include "dpaa_rxtx.h"
+#include <rte_dpaa_bus.h>
+#include <dpaa_mempool.h>
+
+#include <fsl_usd.h>
+#include <fsl_qman.h>
+#include <fsl_bman.h>
+#include <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)
+
+#if (defined RTE_LIBRTE_DPAA_DEBUG_DRIVER)
+void dpaa_display_frame(const struct qm_fd *fd)
+{
+ int ii;
+ char *ptr;
+
+ printf("%s::bpid %x addr %08x%08x, format %d off %d, len %d stat %x\n",
+ __func__, fd->bpid, fd->addr_hi, fd->addr_lo, fd->format,
+ fd->offset, fd->length20, fd->status);
+
+ ptr = (char *)rte_dpaa_mem_ptov(fd->addr);
+ ptr += fd->offset;
+ printf("%02x ", *ptr);
+ for (ii = 1; ii < fd->length20; ii++) {
+ printf("%02x ", *ptr);
+ if ((ii % 16) == 0)
+ printf("\n");
+ ptr++;
+ }
+ printf("\n");
+}
+#else
+#define dpaa_display_frame(a)
+#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,
+ uint64_t fd_virt_addr)
+{
+ struct annotations_t *annot = GET_ANNOTATIONS(fd_virt_addr);
+ uint64_t prs = *((uint64_t *)(&annot->parse)) & DPAA_PARSE_MASK;
+
+ DPAA_DP_LOG(DEBUG, " Parsing mbuf: %p with annotations: %p", m, annot);
+
+ switch (prs) {
+ case DPAA_PKT_TYPE_NONE:
+ m->packet_type = 0;
+ break;
+ case DPAA_PKT_TYPE_ETHER:
+ m->packet_type = RTE_PTYPE_L2_ETHER;
+ break;
+ 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_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;
+ /* 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)(rte_be_to_cpu_64(annot->hash));
+ m->ol_flags = PKT_RX_RSS_HASH;
+ /* All packets with Bad checksum are dropped by interface (and
+ * corresponding notification issued to RX error queues).
+ */
+ m->ol_flags |= PKT_RX_IP_CKSUM_GOOD;
+
+ /* 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 ether_hdr *eth_hdr = rte_pktmbuf_mtod(mbuf, struct ether_hdr *);
+ char *l3_hdr = (char *)eth_hdr + mbuf->l2_len;
+ struct ipv4_hdr *ipv4_hdr = (struct ipv4_hdr *)l3_hdr;
+ struct ipv6_hdr *ipv6_hdr = (struct 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 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 ipv6_hdr *)l3_hdr;
+
+ if ((mbuf->packet_type & RTE_PTYPE_L4_MASK) == RTE_PTYPE_L4_TCP) {
+ struct tcp_hdr *tcp_hdr = (struct tcp_hdr *)(l3_hdr +
+ mbuf->l3_len);
+ tcp_hdr->cksum = 0;
+ if (eth_hdr->ether_type == htons(ETHER_TYPE_IPv4))
+ tcp_hdr->cksum = rte_ipv4_udptcp_cksum(ipv4_hdr,
+ tcp_hdr);
+ else /* assume ethertype == 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 udp_hdr *udp_hdr = (struct udp_hdr *)(l3_hdr +
+ mbuf->l3_len);
+ udp_hdr->dgram_cksum = 0;
+ if (eth_hdr->ether_type == htons(ETHER_TYPE_IPv4))
+ udp_hdr->dgram_cksum = rte_ipv4_udptcp_cksum(ipv4_hdr,
+ udp_hdr);
+ else /* assume ethertype == 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;
+}
+
+struct rte_mbuf *
+dpaa_eth_sg_to_mbuf(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;
+ uint8_t fd_offset = fd->offset;
+
+ DPAA_DP_LOG(DEBUG, "Received an SG frame");
+
+ vaddr = rte_dpaa_mem_ptov(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 = rte_dpaa_mem_ptov(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 = rte_dpaa_mem_ptov(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_eth_packet_info(first_seg, (uint64_t)vaddr);
+ rte_pktmbuf_free_seg(temp);
+
+ return first_seg;
+}
+
+static inline struct rte_mbuf *dpaa_eth_fd_to_mbuf(struct qm_fd *fd,
+ uint32_t ifid)
+{
+ struct dpaa_bp_info *bp_info = DPAA_BPID_TO_POOL_INFO(fd->bpid);
+ struct rte_mbuf *mbuf;
+ void *ptr;
+ uint8_t format =
+ (fd->opaque & DPAA_FD_FORMAT_MASK) >> DPAA_FD_FORMAT_SHIFT;
+ uint16_t offset =
+ (fd->opaque & DPAA_FD_OFFSET_MASK) >> DPAA_FD_OFFSET_SHIFT;
+ uint32_t length = fd->opaque & DPAA_FD_LENGTH_MASK;
+
+ DPAA_DP_LOG(DEBUG, " FD--->MBUF");
+
+ if (unlikely(format == qm_fd_sg))
+ return dpaa_eth_sg_to_mbuf(fd, ifid);
+
+ /* Ignoring case when format != qm_fd_contig */
+ dpaa_display_frame(fd);
+ ptr = rte_dpaa_mem_ptov(fd->addr);
+ /* Ignoring case when ptr would be NULL. That is only possible incase
+ * of a corrupted packet
+ */
+
+ 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));
+ rte_prefetch0((void *)((uint8_t *)ptr + offset));
+
+ 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, (uint64_t)mbuf->buf_addr);
+
+ return mbuf;
+}
+
+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 ret;
+
+ ret = rte_dpaa_portal_init((void *)0);
+ if (ret) {
+ DPAA_PMD_ERR("Failure in affining portal");
+ return 0;
+ }
+
+ ret = qman_set_vdq(fq, (nb_bufs > DPAA_MAX_DEQUEUE_NUM_FRAMES) ?
+ DPAA_MAX_DEQUEUE_NUM_FRAMES : nb_bufs);
+ if (ret)
+ return 0;
+
+ do {
+ dq = qman_dequeue(fq);
+ if (!dq)
+ continue;
+ bufs[num_rx++] = dpaa_eth_fd_to_mbuf(&dq->fd, ifid);
+ qman_dqrr_consume(fq, dq);
+ } while (fq->flags & QMAN_FQ_STATE_VDQCR);
+
+ return num_rx;
+}
+
+static void *dpaa_get_pktbuf(struct dpaa_bp_info *bp_info)
+{
+ int ret;
+ uint64_t buf = 0;
+ struct bm_buffer bufs;
+
+ ret = bman_acquire(bp_info->bp, &bufs, 1, 0);
+ if (ret <= 0) {
+ DPAA_PMD_WARN("Failed to allocate buffers %d", ret);
+ return (void *)buf;
+ }
+
+ DPAA_DP_LOG(DEBUG, "got buffer 0x%lx from pool %d",
+ (uint64_t)bufs.addr, bufs.bpid);
+
+ buf = (uint64_t)rte_dpaa_mem_ptov(bufs.addr) - bp_info->meta_data_size;
+ if (!buf)
+ goto out;
+
+out:
+ return (void *)buf;
+}
+
+static struct rte_mbuf *dpaa_get_dmable_mbuf(struct rte_mbuf *mbuf,
+ struct dpaa_if *dpaa_intf)
+{
+ struct rte_mbuf *dpaa_mbuf;
+
+ /* allocate pktbuffer on bpid for dpaa port */
+ dpaa_mbuf = dpaa_get_pktbuf(dpaa_intf->bp_info);
+ if (!dpaa_mbuf)
+ return NULL;
+
+ memcpy((uint8_t *)(dpaa_mbuf->buf_addr) + mbuf->data_off, (void *)
+ ((uint8_t *)(mbuf->buf_addr) + mbuf->data_off), mbuf->pkt_len);
+
+ /* Copy only the required fields */
+ dpaa_mbuf->data_off = mbuf->data_off;
+ dpaa_mbuf->pkt_len = mbuf->pkt_len;
+ dpaa_mbuf->ol_flags = mbuf->ol_flags;
+ dpaa_mbuf->packet_type = mbuf->packet_type;
+ dpaa_mbuf->tx_offload = mbuf->tx_offload;
+ rte_pktmbuf_free(mbuf);
+ return dpaa_mbuf;
+}
+
+int
+dpaa_eth_mbuf_to_sg_fd(struct rte_mbuf *mbuf,
+ struct qm_fd *fd,
+ uint32_t bpid)
+{
+ struct rte_mbuf *cur_seg = mbuf, *prev_seg = NULL;
+ struct dpaa_bp_info *bp_info = DPAA_BPID_TO_POOL_INFO(bpid);
+ 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 (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 = bpid;
+ 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 {
+ /* 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 {
+ /* 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->bpid);
+ }
+ rte_pktmbuf_free(mbuf);
+ }
+
+ if (mbuf->ol_flags & DPAA_TX_CKSUM_OFFLOAD_MASK) {
+ 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);
+ }
+ }
+}
+
+/* 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->bpid)) {
+ 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 uint16_t
+tx_on_external_pool(struct qman_fq *txq, struct rte_mbuf *mbuf,
+ struct qm_fd *fd_arr)
+{
+ struct dpaa_if *dpaa_intf = txq->dpaa_intf;
+ struct rte_mbuf *dmable_mbuf;
+
+ DPAA_DP_LOG(DEBUG, "Non-BMAN offloaded buffer."
+ "Allocating an offloaded buffer");
+ dmable_mbuf = dpaa_get_dmable_mbuf(mbuf, dpaa_intf);
+ if (!dmable_mbuf) {
+ DPAA_DP_LOG(DEBUG, "no dpaa buffers.");
+ return 1;
+ }
+
+ DPAA_MBUF_TO_CONTIG_FD(mbuf, fd_arr, dpaa_intf->bp_info->bpid);
+
+ return 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[MAX_TX_RING_SLOTS];
+ uint32_t frames_to_send, loop, i = 0;
+ uint16_t state;
+ int ret;
+
+ 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 >> 3) ? MAX_TX_RING_SLOTS : nb_bufs;
+ for (loop = 0; loop < frames_to_send; loop++, i++) {
+ mbuf = bufs[i];
+ if (RTE_MBUF_DIRECT(mbuf)) {
+ mp = mbuf->pool;
+ } else {
+ mi = rte_mbuf_from_indirect(mbuf);
+ mp = mi->pool;
+ }
+
+ bp_info = DPAA_MEMPOOL_TO_POOL_INFO(mp);
+ if (likely(mp->ops_index == bp_info->dpaa_ops_index)) {
+ 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;
+ }
+ } else {
+ state = tx_on_external_pool(q, mbuf,
+ &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],
+ frames_to_send - loop);
+ }
+ nb_bufs -= frames_to_send;
+ }
+
+ DPAA_DP_LOG(DEBUG, "Transmitted %d buffers on queue: %p", i, q);
+
+ return i;
+}
+
+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;
+}
Code Review / deb_dpdk.git / blobdiff