bus/dpaa: decouple FQ portal alloc and init
[dpdk.git] / drivers / net / dpaa / dpaa_rxtx.c
1 /* SPDX-License-Identifier: BSD-3-Clause
2  *
3  *   Copyright 2016 Freescale Semiconductor, Inc. All rights reserved.
4  *   Copyright 2017,2019 NXP
5  *
6  */
7
8 /* System headers */
9 #include <inttypes.h>
10 #include <unistd.h>
11 #include <stdio.h>
12 #include <limits.h>
13 #include <sched.h>
14 #include <pthread.h>
15
16 #include <rte_byteorder.h>
17 #include <rte_common.h>
18 #include <rte_interrupts.h>
19 #include <rte_log.h>
20 #include <rte_debug.h>
21 #include <rte_pci.h>
22 #include <rte_atomic.h>
23 #include <rte_branch_prediction.h>
24 #include <rte_memory.h>
25 #include <rte_tailq.h>
26 #include <rte_eal.h>
27 #include <rte_alarm.h>
28 #include <rte_ether.h>
29 #include <rte_ethdev_driver.h>
30 #include <rte_malloc.h>
31 #include <rte_ring.h>
32 #include <rte_ip.h>
33 #include <rte_tcp.h>
34 #include <rte_udp.h>
35 #include <rte_net.h>
36 #include <rte_eventdev.h>
37
38 #include "dpaa_ethdev.h"
39 #include "dpaa_rxtx.h"
40 #include <rte_dpaa_bus.h>
41 #include <dpaa_mempool.h>
42
43 #include <qman.h>
44 #include <fsl_usd.h>
45 #include <fsl_qman.h>
46 #include <fsl_bman.h>
47 #include <of.h>
48 #include <netcfg.h>
49
50 #define DPAA_MBUF_TO_CONTIG_FD(_mbuf, _fd, _bpid) \
51         do { \
52                 (_fd)->cmd = 0; \
53                 (_fd)->opaque_addr = 0; \
54                 (_fd)->opaque = QM_FD_CONTIG << DPAA_FD_FORMAT_SHIFT; \
55                 (_fd)->opaque |= ((_mbuf)->data_off) << DPAA_FD_OFFSET_SHIFT; \
56                 (_fd)->opaque |= (_mbuf)->pkt_len; \
57                 (_fd)->addr = (_mbuf)->buf_iova; \
58                 (_fd)->bpid = _bpid; \
59         } while (0)
60
61 #if (defined RTE_LIBRTE_DPAA_DEBUG_DRIVER)
62 static void dpaa_display_frame(const struct qm_fd *fd)
63 {
64         int ii;
65         char *ptr;
66
67         printf("%s::bpid %x addr %08x%08x, format %d off %d, len %d stat %x\n",
68                __func__, fd->bpid, fd->addr_hi, fd->addr_lo, fd->format,
69                 fd->offset, fd->length20, fd->status);
70
71         ptr = (char *)rte_dpaa_mem_ptov(fd->addr);
72         ptr += fd->offset;
73         printf("%02x ", *ptr);
74         for (ii = 1; ii < fd->length20; ii++) {
75                 printf("%02x ", *ptr);
76                 if ((ii % 16) == 0)
77                         printf("\n");
78                 ptr++;
79         }
80         printf("\n");
81 }
82 #else
83 #define dpaa_display_frame(a)
84 #endif
85
86 static inline void dpaa_slow_parsing(struct rte_mbuf *m __rte_unused,
87                                      uint64_t prs __rte_unused)
88 {
89         DPAA_DP_LOG(DEBUG, "Slow parsing");
90         /*TBD:XXX: to be implemented*/
91 }
92
93 static inline void dpaa_eth_packet_info(struct rte_mbuf *m, void *fd_virt_addr)
94 {
95         struct annotations_t *annot = GET_ANNOTATIONS(fd_virt_addr);
96         uint64_t prs = *((uintptr_t *)(&annot->parse)) & DPAA_PARSE_MASK;
97
98         DPAA_DP_LOG(DEBUG, " Parsing mbuf: %p with annotations: %p", m, annot);
99
100         switch (prs) {
101         case DPAA_PKT_TYPE_IPV4:
102                 m->packet_type = RTE_PTYPE_L2_ETHER |
103                         RTE_PTYPE_L3_IPV4;
104                 break;
105         case DPAA_PKT_TYPE_IPV6:
106                 m->packet_type = RTE_PTYPE_L2_ETHER |
107                         RTE_PTYPE_L3_IPV6;
108                 break;
109         case DPAA_PKT_TYPE_ETHER:
110                 m->packet_type = RTE_PTYPE_L2_ETHER;
111                 break;
112         case DPAA_PKT_TYPE_IPV4_FRAG:
113         case DPAA_PKT_TYPE_IPV4_FRAG_UDP:
114         case DPAA_PKT_TYPE_IPV4_FRAG_TCP:
115         case DPAA_PKT_TYPE_IPV4_FRAG_SCTP:
116                 m->packet_type = RTE_PTYPE_L2_ETHER |
117                         RTE_PTYPE_L3_IPV4 | RTE_PTYPE_L4_FRAG;
118                 break;
119         case DPAA_PKT_TYPE_IPV6_FRAG:
120         case DPAA_PKT_TYPE_IPV6_FRAG_UDP:
121         case DPAA_PKT_TYPE_IPV6_FRAG_TCP:
122         case DPAA_PKT_TYPE_IPV6_FRAG_SCTP:
123                 m->packet_type = RTE_PTYPE_L2_ETHER |
124                         RTE_PTYPE_L3_IPV6 | RTE_PTYPE_L4_FRAG;
125                 break;
126         case DPAA_PKT_TYPE_IPV4_EXT:
127                 m->packet_type = RTE_PTYPE_L2_ETHER |
128                         RTE_PTYPE_L3_IPV4_EXT;
129                 break;
130         case DPAA_PKT_TYPE_IPV6_EXT:
131                 m->packet_type = RTE_PTYPE_L2_ETHER |
132                         RTE_PTYPE_L3_IPV6_EXT;
133                 break;
134         case DPAA_PKT_TYPE_IPV4_TCP:
135                 m->packet_type = RTE_PTYPE_L2_ETHER |
136                         RTE_PTYPE_L3_IPV4 | RTE_PTYPE_L4_TCP;
137                 break;
138         case DPAA_PKT_TYPE_IPV6_TCP:
139                 m->packet_type = RTE_PTYPE_L2_ETHER |
140                         RTE_PTYPE_L3_IPV6 | RTE_PTYPE_L4_TCP;
141                 break;
142         case DPAA_PKT_TYPE_IPV4_UDP:
143                 m->packet_type = RTE_PTYPE_L2_ETHER |
144                         RTE_PTYPE_L3_IPV4 | RTE_PTYPE_L4_UDP;
145                 break;
146         case DPAA_PKT_TYPE_IPV6_UDP:
147                 m->packet_type = RTE_PTYPE_L2_ETHER |
148                         RTE_PTYPE_L3_IPV6 | RTE_PTYPE_L4_UDP;
149                 break;
150         case DPAA_PKT_TYPE_IPV4_EXT_UDP:
151                 m->packet_type = RTE_PTYPE_L2_ETHER |
152                         RTE_PTYPE_L3_IPV4_EXT | RTE_PTYPE_L4_UDP;
153                 break;
154         case DPAA_PKT_TYPE_IPV6_EXT_UDP:
155                 m->packet_type = RTE_PTYPE_L2_ETHER |
156                         RTE_PTYPE_L3_IPV6_EXT | RTE_PTYPE_L4_UDP;
157                 break;
158         case DPAA_PKT_TYPE_IPV4_EXT_TCP:
159                 m->packet_type = RTE_PTYPE_L2_ETHER |
160                         RTE_PTYPE_L3_IPV4_EXT | RTE_PTYPE_L4_TCP;
161                 break;
162         case DPAA_PKT_TYPE_IPV6_EXT_TCP:
163                 m->packet_type = RTE_PTYPE_L2_ETHER |
164                         RTE_PTYPE_L3_IPV6_EXT | RTE_PTYPE_L4_TCP;
165                 break;
166         case DPAA_PKT_TYPE_IPV4_SCTP:
167                 m->packet_type = RTE_PTYPE_L2_ETHER |
168                         RTE_PTYPE_L3_IPV4 | RTE_PTYPE_L4_SCTP;
169                 break;
170         case DPAA_PKT_TYPE_IPV6_SCTP:
171                 m->packet_type = RTE_PTYPE_L2_ETHER |
172                         RTE_PTYPE_L3_IPV6 | RTE_PTYPE_L4_SCTP;
173                 break;
174         case DPAA_PKT_TYPE_NONE:
175                 m->packet_type = 0;
176                 break;
177         /* More switch cases can be added */
178         default:
179                 dpaa_slow_parsing(m, prs);
180         }
181
182         m->tx_offload = annot->parse.ip_off[0];
183         m->tx_offload |= (annot->parse.l4_off - annot->parse.ip_off[0])
184                                         << DPAA_PKT_L3_LEN_SHIFT;
185
186         /* Set the hash values */
187         m->hash.rss = (uint32_t)(annot->hash);
188         /* All packets with Bad checksum are dropped by interface (and
189          * corresponding notification issued to RX error queues).
190          */
191         m->ol_flags = PKT_RX_RSS_HASH | PKT_RX_IP_CKSUM_GOOD;
192
193         /* Check if Vlan is present */
194         if (prs & DPAA_PARSE_VLAN_MASK)
195                 m->ol_flags |= PKT_RX_VLAN;
196         /* Packet received without stripping the vlan */
197 }
198
199 static inline void dpaa_checksum(struct rte_mbuf *mbuf)
200 {
201         struct rte_ether_hdr *eth_hdr =
202                 rte_pktmbuf_mtod(mbuf, struct rte_ether_hdr *);
203         char *l3_hdr = (char *)eth_hdr + mbuf->l2_len;
204         struct rte_ipv4_hdr *ipv4_hdr = (struct rte_ipv4_hdr *)l3_hdr;
205         struct rte_ipv6_hdr *ipv6_hdr = (struct rte_ipv6_hdr *)l3_hdr;
206
207         DPAA_DP_LOG(DEBUG, "Calculating checksum for mbuf: %p", mbuf);
208
209         if (((mbuf->packet_type & RTE_PTYPE_L3_MASK) == RTE_PTYPE_L3_IPV4) ||
210             ((mbuf->packet_type & RTE_PTYPE_L3_MASK) ==
211             RTE_PTYPE_L3_IPV4_EXT)) {
212                 ipv4_hdr = (struct rte_ipv4_hdr *)l3_hdr;
213                 ipv4_hdr->hdr_checksum = 0;
214                 ipv4_hdr->hdr_checksum = rte_ipv4_cksum(ipv4_hdr);
215         } else if (((mbuf->packet_type & RTE_PTYPE_L3_MASK) ==
216                    RTE_PTYPE_L3_IPV6) ||
217                    ((mbuf->packet_type & RTE_PTYPE_L3_MASK) ==
218                    RTE_PTYPE_L3_IPV6_EXT))
219                 ipv6_hdr = (struct rte_ipv6_hdr *)l3_hdr;
220
221         if ((mbuf->packet_type & RTE_PTYPE_L4_MASK) == RTE_PTYPE_L4_TCP) {
222                 struct rte_tcp_hdr *tcp_hdr = (struct rte_tcp_hdr *)(l3_hdr +
223                                           mbuf->l3_len);
224                 tcp_hdr->cksum = 0;
225                 if (eth_hdr->ether_type == htons(RTE_ETHER_TYPE_IPV4))
226                         tcp_hdr->cksum = rte_ipv4_udptcp_cksum(ipv4_hdr,
227                                                                tcp_hdr);
228                 else /* assume ethertype == RTE_ETHER_TYPE_IPV6 */
229                         tcp_hdr->cksum = rte_ipv6_udptcp_cksum(ipv6_hdr,
230                                                                tcp_hdr);
231         } else if ((mbuf->packet_type & RTE_PTYPE_L4_MASK) ==
232                    RTE_PTYPE_L4_UDP) {
233                 struct rte_udp_hdr *udp_hdr = (struct rte_udp_hdr *)(l3_hdr +
234                                                              mbuf->l3_len);
235                 udp_hdr->dgram_cksum = 0;
236                 if (eth_hdr->ether_type == htons(RTE_ETHER_TYPE_IPV4))
237                         udp_hdr->dgram_cksum = rte_ipv4_udptcp_cksum(ipv4_hdr,
238                                                                      udp_hdr);
239                 else /* assume ethertype == RTE_ETHER_TYPE_IPV6 */
240                         udp_hdr->dgram_cksum = rte_ipv6_udptcp_cksum(ipv6_hdr,
241                                                                      udp_hdr);
242         }
243 }
244
245 static inline void dpaa_checksum_offload(struct rte_mbuf *mbuf,
246                                          struct qm_fd *fd, char *prs_buf)
247 {
248         struct dpaa_eth_parse_results_t *prs;
249
250         DPAA_DP_LOG(DEBUG, " Offloading checksum for mbuf: %p", mbuf);
251
252         prs = GET_TX_PRS(prs_buf);
253         prs->l3r = 0;
254         prs->l4r = 0;
255         if (((mbuf->packet_type & RTE_PTYPE_L3_MASK) == RTE_PTYPE_L3_IPV4) ||
256            ((mbuf->packet_type & RTE_PTYPE_L3_MASK) ==
257            RTE_PTYPE_L3_IPV4_EXT))
258                 prs->l3r = DPAA_L3_PARSE_RESULT_IPV4;
259         else if (((mbuf->packet_type & RTE_PTYPE_L3_MASK) ==
260                    RTE_PTYPE_L3_IPV6) ||
261                  ((mbuf->packet_type & RTE_PTYPE_L3_MASK) ==
262                 RTE_PTYPE_L3_IPV6_EXT))
263                 prs->l3r = DPAA_L3_PARSE_RESULT_IPV6;
264
265         if ((mbuf->packet_type & RTE_PTYPE_L4_MASK) == RTE_PTYPE_L4_TCP)
266                 prs->l4r = DPAA_L4_PARSE_RESULT_TCP;
267         else if ((mbuf->packet_type & RTE_PTYPE_L4_MASK) == RTE_PTYPE_L4_UDP)
268                 prs->l4r = DPAA_L4_PARSE_RESULT_UDP;
269
270         prs->ip_off[0] = mbuf->l2_len;
271         prs->l4_off = mbuf->l3_len + mbuf->l2_len;
272         /* Enable L3 (and L4, if TCP or UDP) HW checksum*/
273         fd->cmd = DPAA_FD_CMD_RPD | DPAA_FD_CMD_DTC;
274 }
275
276 static inline void
277 dpaa_unsegmented_checksum(struct rte_mbuf *mbuf, struct qm_fd *fd_arr)
278 {
279         if (!mbuf->packet_type) {
280                 struct rte_net_hdr_lens hdr_lens;
281
282                 mbuf->packet_type = rte_net_get_ptype(mbuf, &hdr_lens,
283                                 RTE_PTYPE_L2_MASK | RTE_PTYPE_L3_MASK
284                                 | RTE_PTYPE_L4_MASK);
285                 mbuf->l2_len = hdr_lens.l2_len;
286                 mbuf->l3_len = hdr_lens.l3_len;
287         }
288         if (mbuf->data_off < (DEFAULT_TX_ICEOF +
289             sizeof(struct dpaa_eth_parse_results_t))) {
290                 DPAA_DP_LOG(DEBUG, "Checksum offload Err: "
291                         "Not enough Headroom "
292                         "space for correct Checksum offload."
293                         "So Calculating checksum in Software.");
294                 dpaa_checksum(mbuf);
295         } else {
296                 dpaa_checksum_offload(mbuf, fd_arr, mbuf->buf_addr);
297         }
298 }
299
300 struct rte_mbuf *
301 dpaa_eth_sg_to_mbuf(const struct qm_fd *fd, uint32_t ifid)
302 {
303         struct dpaa_bp_info *bp_info = DPAA_BPID_TO_POOL_INFO(fd->bpid);
304         struct rte_mbuf *first_seg, *prev_seg, *cur_seg, *temp;
305         struct qm_sg_entry *sgt, *sg_temp;
306         void *vaddr, *sg_vaddr;
307         int i = 0;
308         uint8_t fd_offset = fd->offset;
309
310         vaddr = DPAA_MEMPOOL_PTOV(bp_info, qm_fd_addr(fd));
311         if (!vaddr) {
312                 DPAA_PMD_ERR("unable to convert physical address");
313                 return NULL;
314         }
315         sgt = vaddr + fd_offset;
316         sg_temp = &sgt[i++];
317         hw_sg_to_cpu(sg_temp);
318         temp = (struct rte_mbuf *)((char *)vaddr - bp_info->meta_data_size);
319         sg_vaddr = DPAA_MEMPOOL_PTOV(bp_info, qm_sg_entry_get64(sg_temp));
320
321         first_seg = (struct rte_mbuf *)((char *)sg_vaddr -
322                                                 bp_info->meta_data_size);
323         first_seg->data_off = sg_temp->offset;
324         first_seg->data_len = sg_temp->length;
325         first_seg->pkt_len = sg_temp->length;
326         rte_mbuf_refcnt_set(first_seg, 1);
327
328         first_seg->port = ifid;
329         first_seg->nb_segs = 1;
330         first_seg->ol_flags = 0;
331         prev_seg = first_seg;
332         while (i < DPAA_SGT_MAX_ENTRIES) {
333                 sg_temp = &sgt[i++];
334                 hw_sg_to_cpu(sg_temp);
335                 sg_vaddr = DPAA_MEMPOOL_PTOV(bp_info,
336                                              qm_sg_entry_get64(sg_temp));
337                 cur_seg = (struct rte_mbuf *)((char *)sg_vaddr -
338                                                       bp_info->meta_data_size);
339                 cur_seg->data_off = sg_temp->offset;
340                 cur_seg->data_len = sg_temp->length;
341                 first_seg->pkt_len += sg_temp->length;
342                 first_seg->nb_segs += 1;
343                 rte_mbuf_refcnt_set(cur_seg, 1);
344                 prev_seg->next = cur_seg;
345                 if (sg_temp->final) {
346                         cur_seg->next = NULL;
347                         break;
348                 }
349                 prev_seg = cur_seg;
350         }
351         DPAA_DP_LOG(DEBUG, "Received an SG frame len =%d, num_sg =%d",
352                         first_seg->pkt_len, first_seg->nb_segs);
353
354         dpaa_eth_packet_info(first_seg, vaddr);
355         rte_pktmbuf_free_seg(temp);
356
357         return first_seg;
358 }
359
360 static inline struct rte_mbuf *
361 dpaa_eth_fd_to_mbuf(const struct qm_fd *fd, uint32_t ifid)
362 {
363         struct rte_mbuf *mbuf;
364         struct dpaa_bp_info *bp_info = DPAA_BPID_TO_POOL_INFO(fd->bpid);
365         void *ptr;
366         uint8_t format =
367                 (fd->opaque & DPAA_FD_FORMAT_MASK) >> DPAA_FD_FORMAT_SHIFT;
368         uint16_t offset;
369         uint32_t length;
370
371         if (unlikely(format == qm_fd_sg))
372                 return dpaa_eth_sg_to_mbuf(fd, ifid);
373
374         offset = (fd->opaque & DPAA_FD_OFFSET_MASK) >> DPAA_FD_OFFSET_SHIFT;
375         length = fd->opaque & DPAA_FD_LENGTH_MASK;
376
377         DPAA_DP_LOG(DEBUG, " FD--->MBUF off %d len = %d", offset, length);
378
379         /* Ignoring case when format != qm_fd_contig */
380         dpaa_display_frame(fd);
381         ptr = DPAA_MEMPOOL_PTOV(bp_info, qm_fd_addr(fd));
382
383         mbuf = (struct rte_mbuf *)((char *)ptr - bp_info->meta_data_size);
384         /* Prefetch the Parse results and packet data to L1 */
385         rte_prefetch0((void *)((uint8_t *)ptr + DEFAULT_RX_ICEOF));
386
387         mbuf->data_off = offset;
388         mbuf->data_len = length;
389         mbuf->pkt_len = length;
390
391         mbuf->port = ifid;
392         mbuf->nb_segs = 1;
393         mbuf->ol_flags = 0;
394         mbuf->next = NULL;
395         rte_mbuf_refcnt_set(mbuf, 1);
396         dpaa_eth_packet_info(mbuf, mbuf->buf_addr);
397
398         return mbuf;
399 }
400
401 /* Specific for LS1043 */
402 void
403 dpaa_rx_cb_no_prefetch(struct qman_fq **fq, struct qm_dqrr_entry **dqrr,
404            void **bufs, int num_bufs)
405 {
406         struct rte_mbuf *mbuf;
407         struct dpaa_bp_info *bp_info;
408         const struct qm_fd *fd;
409         void *ptr;
410         struct dpaa_if *dpaa_intf;
411         uint16_t offset, i;
412         uint32_t length;
413         uint8_t format;
414
415         bp_info = DPAA_BPID_TO_POOL_INFO(dqrr[0]->fd.bpid);
416         ptr = rte_dpaa_mem_ptov(qm_fd_addr(&dqrr[0]->fd));
417         rte_prefetch0((void *)((uint8_t *)ptr + DEFAULT_RX_ICEOF));
418         bufs[0] = (struct rte_mbuf *)((char *)ptr - bp_info->meta_data_size);
419
420         for (i = 0; i < num_bufs; i++) {
421                 if (i < num_bufs - 1) {
422                         bp_info = DPAA_BPID_TO_POOL_INFO(dqrr[i + 1]->fd.bpid);
423                         ptr = rte_dpaa_mem_ptov(qm_fd_addr(&dqrr[i + 1]->fd));
424                         rte_prefetch0((void *)((uint8_t *)ptr +
425                                         DEFAULT_RX_ICEOF));
426                         bufs[i + 1] = (struct rte_mbuf *)((char *)ptr -
427                                         bp_info->meta_data_size);
428                 }
429
430                 fd = &dqrr[i]->fd;
431                 dpaa_intf = fq[0]->dpaa_intf;
432
433                 format = (fd->opaque & DPAA_FD_FORMAT_MASK) >>
434                                 DPAA_FD_FORMAT_SHIFT;
435                 if (unlikely(format == qm_fd_sg)) {
436                         bufs[i] = dpaa_eth_sg_to_mbuf(fd, dpaa_intf->ifid);
437                         continue;
438                 }
439
440                 offset = (fd->opaque & DPAA_FD_OFFSET_MASK) >>
441                                 DPAA_FD_OFFSET_SHIFT;
442                 length = fd->opaque & DPAA_FD_LENGTH_MASK;
443
444                 mbuf = bufs[i];
445                 mbuf->data_off = offset;
446                 mbuf->data_len = length;
447                 mbuf->pkt_len = length;
448                 mbuf->port = dpaa_intf->ifid;
449
450                 mbuf->nb_segs = 1;
451                 mbuf->ol_flags = 0;
452                 mbuf->next = NULL;
453                 rte_mbuf_refcnt_set(mbuf, 1);
454                 dpaa_eth_packet_info(mbuf, mbuf->buf_addr);
455         }
456 }
457
458 void
459 dpaa_rx_cb(struct qman_fq **fq, struct qm_dqrr_entry **dqrr,
460            void **bufs, int num_bufs)
461 {
462         struct rte_mbuf *mbuf;
463         const struct qm_fd *fd;
464         struct dpaa_if *dpaa_intf;
465         uint16_t offset, i;
466         uint32_t length;
467         uint8_t format;
468
469         for (i = 0; i < num_bufs; i++) {
470                 fd = &dqrr[i]->fd;
471                 dpaa_intf = fq[0]->dpaa_intf;
472
473                 format = (fd->opaque & DPAA_FD_FORMAT_MASK) >>
474                                 DPAA_FD_FORMAT_SHIFT;
475                 if (unlikely(format == qm_fd_sg)) {
476                         bufs[i] = dpaa_eth_sg_to_mbuf(fd, dpaa_intf->ifid);
477                         continue;
478                 }
479
480                 offset = (fd->opaque & DPAA_FD_OFFSET_MASK) >>
481                                 DPAA_FD_OFFSET_SHIFT;
482                 length = fd->opaque & DPAA_FD_LENGTH_MASK;
483
484                 mbuf = bufs[i];
485                 mbuf->data_off = offset;
486                 mbuf->data_len = length;
487                 mbuf->pkt_len = length;
488                 mbuf->port = dpaa_intf->ifid;
489
490                 mbuf->nb_segs = 1;
491                 mbuf->ol_flags = 0;
492                 mbuf->next = NULL;
493                 rte_mbuf_refcnt_set(mbuf, 1);
494                 dpaa_eth_packet_info(mbuf, mbuf->buf_addr);
495         }
496 }
497
498 void dpaa_rx_cb_prepare(struct qm_dqrr_entry *dq, void **bufs)
499 {
500         struct dpaa_bp_info *bp_info = DPAA_BPID_TO_POOL_INFO(dq->fd.bpid);
501         void *ptr = rte_dpaa_mem_ptov(qm_fd_addr(&dq->fd));
502
503         /* In case of LS1046, annotation stashing is disabled due to L2 cache
504          * being bottleneck in case of multicore scanario for this platform.
505          * So we prefetch the annoation beforehand, so that it is available
506          * in cache when accessed.
507          */
508         rte_prefetch0((void *)((uint8_t *)ptr + DEFAULT_RX_ICEOF));
509
510         *bufs = (struct rte_mbuf *)((char *)ptr - bp_info->meta_data_size);
511 }
512
513 static uint16_t
514 dpaa_eth_queue_portal_rx(struct qman_fq *fq,
515                          struct rte_mbuf **bufs,
516                          uint16_t nb_bufs)
517 {
518         int ret;
519
520         if (unlikely(!fq->qp_initialized)) {
521                 ret = rte_dpaa_portal_fq_init((void *)0, fq);
522                 if (ret) {
523                         DPAA_PMD_ERR("Failure in affining portal %d", ret);
524                         return 0;
525                 }
526                 fq->qp_initialized = 1;
527         }
528
529         return qman_portal_poll_rx(nb_bufs, (void **)bufs, fq->qp);
530 }
531
532 enum qman_cb_dqrr_result
533 dpaa_rx_cb_parallel(void *event,
534                     struct qman_portal *qm __always_unused,
535                     struct qman_fq *fq,
536                     const struct qm_dqrr_entry *dqrr,
537                     void **bufs)
538 {
539         u32 ifid = ((struct dpaa_if *)fq->dpaa_intf)->ifid;
540         struct rte_mbuf *mbuf;
541         struct rte_event *ev = (struct rte_event *)event;
542
543         mbuf = dpaa_eth_fd_to_mbuf(&dqrr->fd, ifid);
544         ev->event_ptr = (void *)mbuf;
545         ev->flow_id = fq->ev.flow_id;
546         ev->sub_event_type = fq->ev.sub_event_type;
547         ev->event_type = RTE_EVENT_TYPE_ETHDEV;
548         ev->op = RTE_EVENT_OP_NEW;
549         ev->sched_type = fq->ev.sched_type;
550         ev->queue_id = fq->ev.queue_id;
551         ev->priority = fq->ev.priority;
552         ev->impl_opaque = (uint8_t)DPAA_INVALID_MBUF_SEQN;
553         mbuf->seqn = DPAA_INVALID_MBUF_SEQN;
554         *bufs = mbuf;
555
556         return qman_cb_dqrr_consume;
557 }
558
559 enum qman_cb_dqrr_result
560 dpaa_rx_cb_atomic(void *event,
561                   struct qman_portal *qm __always_unused,
562                   struct qman_fq *fq,
563                   const struct qm_dqrr_entry *dqrr,
564                   void **bufs)
565 {
566         u8 index;
567         u32 ifid = ((struct dpaa_if *)fq->dpaa_intf)->ifid;
568         struct rte_mbuf *mbuf;
569         struct rte_event *ev = (struct rte_event *)event;
570
571         mbuf = dpaa_eth_fd_to_mbuf(&dqrr->fd, ifid);
572         ev->event_ptr = (void *)mbuf;
573         ev->flow_id = fq->ev.flow_id;
574         ev->sub_event_type = fq->ev.sub_event_type;
575         ev->event_type = RTE_EVENT_TYPE_ETHDEV;
576         ev->op = RTE_EVENT_OP_NEW;
577         ev->sched_type = fq->ev.sched_type;
578         ev->queue_id = fq->ev.queue_id;
579         ev->priority = fq->ev.priority;
580
581         /* Save active dqrr entries */
582         index = DQRR_PTR2IDX(dqrr);
583         DPAA_PER_LCORE_DQRR_SIZE++;
584         DPAA_PER_LCORE_DQRR_HELD |= 1 << index;
585         DPAA_PER_LCORE_DQRR_MBUF(index) = mbuf;
586         ev->impl_opaque = index + 1;
587         mbuf->seqn = (uint32_t)index + 1;
588         *bufs = mbuf;
589
590         return qman_cb_dqrr_defer;
591 }
592
593 uint16_t dpaa_eth_queue_rx(void *q,
594                            struct rte_mbuf **bufs,
595                            uint16_t nb_bufs)
596 {
597         struct qman_fq *fq = q;
598         struct qm_dqrr_entry *dq;
599         uint32_t num_rx = 0, ifid = ((struct dpaa_if *)fq->dpaa_intf)->ifid;
600         int num_rx_bufs, ret;
601         uint32_t vdqcr_flags = 0;
602
603         if (unlikely(rte_dpaa_bpid_info == NULL &&
604                                 rte_eal_process_type() == RTE_PROC_SECONDARY))
605                 rte_dpaa_bpid_info = fq->bp_array;
606
607         if (likely(fq->is_static))
608                 return dpaa_eth_queue_portal_rx(fq, bufs, nb_bufs);
609
610         if (unlikely(!RTE_PER_LCORE(dpaa_io))) {
611                 ret = rte_dpaa_portal_init((void *)0);
612                 if (ret) {
613                         DPAA_PMD_ERR("Failure in affining portal");
614                         return 0;
615                 }
616         }
617
618         /* Until request for four buffers, we provide exact number of buffers.
619          * Otherwise we do not set the QM_VDQCR_EXACT flag.
620          * Not setting QM_VDQCR_EXACT flag can provide two more buffers than
621          * requested, so we request two less in this case.
622          */
623         if (nb_bufs < 4) {
624                 vdqcr_flags = QM_VDQCR_EXACT;
625                 num_rx_bufs = nb_bufs;
626         } else {
627                 num_rx_bufs = nb_bufs > DPAA_MAX_DEQUEUE_NUM_FRAMES ?
628                         (DPAA_MAX_DEQUEUE_NUM_FRAMES - 2) : (nb_bufs - 2);
629         }
630         ret = qman_set_vdq(fq, num_rx_bufs, vdqcr_flags);
631         if (ret)
632                 return 0;
633
634         do {
635                 dq = qman_dequeue(fq);
636                 if (!dq)
637                         continue;
638                 bufs[num_rx++] = dpaa_eth_fd_to_mbuf(&dq->fd, ifid);
639                 qman_dqrr_consume(fq, dq);
640         } while (fq->flags & QMAN_FQ_STATE_VDQCR);
641
642         return num_rx;
643 }
644
645 static void *dpaa_get_pktbuf(struct dpaa_bp_info *bp_info)
646 {
647         int ret;
648         size_t buf = 0;
649         struct bm_buffer bufs;
650
651         ret = bman_acquire(bp_info->bp, &bufs, 1, 0);
652         if (ret <= 0) {
653                 DPAA_PMD_WARN("Failed to allocate buffers %d", ret);
654                 return (void *)buf;
655         }
656
657         DPAA_DP_LOG(DEBUG, "got buffer 0x%" PRIx64 " from pool %d",
658                     (uint64_t)bufs.addr, bufs.bpid);
659
660         buf = (size_t)DPAA_MEMPOOL_PTOV(bp_info, bufs.addr)
661                                 - bp_info->meta_data_size;
662         if (!buf)
663                 goto out;
664
665 out:
666         return (void *)buf;
667 }
668
669 static struct rte_mbuf *dpaa_get_dmable_mbuf(struct rte_mbuf *mbuf,
670                                              struct dpaa_if *dpaa_intf)
671 {
672         struct rte_mbuf *dpaa_mbuf;
673
674         /* allocate pktbuffer on bpid for dpaa port */
675         dpaa_mbuf = dpaa_get_pktbuf(dpaa_intf->bp_info);
676         if (!dpaa_mbuf)
677                 return NULL;
678
679         memcpy((uint8_t *)(dpaa_mbuf->buf_addr) + RTE_PKTMBUF_HEADROOM, (void *)
680                 ((uint8_t *)(mbuf->buf_addr) + mbuf->data_off), mbuf->pkt_len);
681
682         /* Copy only the required fields */
683         dpaa_mbuf->data_off = RTE_PKTMBUF_HEADROOM;
684         dpaa_mbuf->pkt_len = mbuf->pkt_len;
685         dpaa_mbuf->ol_flags = mbuf->ol_flags;
686         dpaa_mbuf->packet_type = mbuf->packet_type;
687         dpaa_mbuf->tx_offload = mbuf->tx_offload;
688         rte_pktmbuf_free(mbuf);
689         return dpaa_mbuf;
690 }
691
692 int
693 dpaa_eth_mbuf_to_sg_fd(struct rte_mbuf *mbuf,
694                 struct qm_fd *fd,
695                 uint32_t bpid)
696 {
697         struct rte_mbuf *cur_seg = mbuf, *prev_seg = NULL;
698         struct dpaa_bp_info *bp_info = DPAA_BPID_TO_POOL_INFO(bpid);
699         struct rte_mbuf *temp, *mi;
700         struct qm_sg_entry *sg_temp, *sgt;
701         int i = 0;
702
703         DPAA_DP_LOG(DEBUG, "Creating SG FD to transmit");
704
705         temp = rte_pktmbuf_alloc(bp_info->mp);
706         if (!temp) {
707                 DPAA_PMD_ERR("Failure in allocation of mbuf");
708                 return -1;
709         }
710         if (temp->buf_len < ((mbuf->nb_segs * sizeof(struct qm_sg_entry))
711                                 + temp->data_off)) {
712                 DPAA_PMD_ERR("Insufficient space in mbuf for SG entries");
713                 return -1;
714         }
715
716         fd->cmd = 0;
717         fd->opaque_addr = 0;
718
719         if (mbuf->ol_flags & DPAA_TX_CKSUM_OFFLOAD_MASK) {
720                 if (!mbuf->packet_type) {
721                         struct rte_net_hdr_lens hdr_lens;
722
723                         mbuf->packet_type = rte_net_get_ptype(mbuf, &hdr_lens,
724                                         RTE_PTYPE_L2_MASK | RTE_PTYPE_L3_MASK
725                                         | RTE_PTYPE_L4_MASK);
726                         mbuf->l2_len = hdr_lens.l2_len;
727                         mbuf->l3_len = hdr_lens.l3_len;
728                 }
729                 if (temp->data_off < DEFAULT_TX_ICEOF
730                         + sizeof(struct dpaa_eth_parse_results_t))
731                         temp->data_off = DEFAULT_TX_ICEOF
732                                 + sizeof(struct dpaa_eth_parse_results_t);
733                 dcbz_64(temp->buf_addr);
734                 dpaa_checksum_offload(mbuf, fd, temp->buf_addr);
735         }
736
737         sgt = temp->buf_addr + temp->data_off;
738         fd->format = QM_FD_SG;
739         fd->addr = temp->buf_iova;
740         fd->offset = temp->data_off;
741         fd->bpid = bpid;
742         fd->length20 = mbuf->pkt_len;
743
744         while (i < DPAA_SGT_MAX_ENTRIES) {
745                 sg_temp = &sgt[i++];
746                 sg_temp->opaque = 0;
747                 sg_temp->val = 0;
748                 sg_temp->addr = cur_seg->buf_iova;
749                 sg_temp->offset = cur_seg->data_off;
750                 sg_temp->length = cur_seg->data_len;
751                 if (RTE_MBUF_DIRECT(cur_seg)) {
752                         if (rte_mbuf_refcnt_read(cur_seg) > 1) {
753                                 /*If refcnt > 1, invalid bpid is set to ensure
754                                  * buffer is not freed by HW.
755                                  */
756                                 sg_temp->bpid = 0xff;
757                                 rte_mbuf_refcnt_update(cur_seg, -1);
758                         } else {
759                                 sg_temp->bpid =
760                                         DPAA_MEMPOOL_TO_BPID(cur_seg->pool);
761                         }
762                         cur_seg = cur_seg->next;
763                 } else {
764                         /* Get owner MBUF from indirect buffer */
765                         mi = rte_mbuf_from_indirect(cur_seg);
766                         if (rte_mbuf_refcnt_read(mi) > 1) {
767                                 /*If refcnt > 1, invalid bpid is set to ensure
768                                  * owner buffer is not freed by HW.
769                                  */
770                                 sg_temp->bpid = 0xff;
771                         } else {
772                                 sg_temp->bpid = DPAA_MEMPOOL_TO_BPID(mi->pool);
773                                 rte_mbuf_refcnt_update(mi, 1);
774                         }
775                         prev_seg = cur_seg;
776                         cur_seg = cur_seg->next;
777                         prev_seg->next = NULL;
778                         rte_pktmbuf_free(prev_seg);
779                 }
780                 if (cur_seg == NULL) {
781                         sg_temp->final = 1;
782                         cpu_to_hw_sg(sg_temp);
783                         break;
784                 }
785                 cpu_to_hw_sg(sg_temp);
786         }
787         return 0;
788 }
789
790 /* Handle mbufs which are not segmented (non SG) */
791 static inline void
792 tx_on_dpaa_pool_unsegmented(struct rte_mbuf *mbuf,
793                             struct dpaa_bp_info *bp_info,
794                             struct qm_fd *fd_arr)
795 {
796         struct rte_mbuf *mi = NULL;
797
798         if (RTE_MBUF_DIRECT(mbuf)) {
799                 if (rte_mbuf_refcnt_read(mbuf) > 1) {
800                         /* In case of direct mbuf and mbuf being cloned,
801                          * BMAN should _not_ release buffer.
802                          */
803                         DPAA_MBUF_TO_CONTIG_FD(mbuf, fd_arr, 0xff);
804                         /* Buffer should be releasd by EAL */
805                         rte_mbuf_refcnt_update(mbuf, -1);
806                 } else {
807                         /* In case of direct mbuf and no cloning, mbuf can be
808                          * released by BMAN.
809                          */
810                         DPAA_MBUF_TO_CONTIG_FD(mbuf, fd_arr, bp_info->bpid);
811                 }
812         } else {
813                 /* This is data-containing core mbuf: 'mi' */
814                 mi = rte_mbuf_from_indirect(mbuf);
815                 if (rte_mbuf_refcnt_read(mi) > 1) {
816                         /* In case of indirect mbuf, and mbuf being cloned,
817                          * BMAN should _not_ release it and let EAL release
818                          * it through pktmbuf_free below.
819                          */
820                         DPAA_MBUF_TO_CONTIG_FD(mbuf, fd_arr, 0xff);
821                 } else {
822                         /* In case of indirect mbuf, and no cloning, core mbuf
823                          * should be released by BMAN.
824                          * Increate refcnt of core mbuf so that when
825                          * pktmbuf_free is called and mbuf is released, EAL
826                          * doesn't try to release core mbuf which would have
827                          * been released by BMAN.
828                          */
829                         rte_mbuf_refcnt_update(mi, 1);
830                         DPAA_MBUF_TO_CONTIG_FD(mbuf, fd_arr, bp_info->bpid);
831                 }
832                 rte_pktmbuf_free(mbuf);
833         }
834
835         if (mbuf->ol_flags & DPAA_TX_CKSUM_OFFLOAD_MASK)
836                 dpaa_unsegmented_checksum(mbuf, fd_arr);
837 }
838
839 /* Handle all mbufs on dpaa BMAN managed pool */
840 static inline uint16_t
841 tx_on_dpaa_pool(struct rte_mbuf *mbuf,
842                 struct dpaa_bp_info *bp_info,
843                 struct qm_fd *fd_arr)
844 {
845         DPAA_DP_LOG(DEBUG, "BMAN offloaded buffer, mbuf: %p", mbuf);
846
847         if (mbuf->nb_segs == 1) {
848                 /* Case for non-segmented buffers */
849                 tx_on_dpaa_pool_unsegmented(mbuf, bp_info, fd_arr);
850         } else if (mbuf->nb_segs > 1 &&
851                    mbuf->nb_segs <= DPAA_SGT_MAX_ENTRIES) {
852                 if (dpaa_eth_mbuf_to_sg_fd(mbuf, fd_arr, bp_info->bpid)) {
853                         DPAA_PMD_DEBUG("Unable to create Scatter Gather FD");
854                         return 1;
855                 }
856         } else {
857                 DPAA_PMD_DEBUG("Number of Segments not supported");
858                 return 1;
859         }
860
861         return 0;
862 }
863
864 /* Handle all mbufs on an external pool (non-dpaa) */
865 static inline uint16_t
866 tx_on_external_pool(struct qman_fq *txq, struct rte_mbuf *mbuf,
867                     struct qm_fd *fd_arr)
868 {
869         struct dpaa_if *dpaa_intf = txq->dpaa_intf;
870         struct rte_mbuf *dmable_mbuf;
871
872         DPAA_DP_LOG(DEBUG, "Non-BMAN offloaded buffer."
873                     "Allocating an offloaded buffer");
874         dmable_mbuf = dpaa_get_dmable_mbuf(mbuf, dpaa_intf);
875         if (!dmable_mbuf) {
876                 DPAA_DP_LOG(DEBUG, "no dpaa buffers.");
877                 return 1;
878         }
879
880         DPAA_MBUF_TO_CONTIG_FD(dmable_mbuf, fd_arr, dpaa_intf->bp_info->bpid);
881         if (mbuf->ol_flags & DPAA_TX_CKSUM_OFFLOAD_MASK)
882                 dpaa_unsegmented_checksum(mbuf, fd_arr);
883
884         return 0;
885 }
886
887 uint16_t
888 dpaa_eth_queue_tx(void *q, struct rte_mbuf **bufs, uint16_t nb_bufs)
889 {
890         struct rte_mbuf *mbuf, *mi = NULL;
891         struct rte_mempool *mp;
892         struct dpaa_bp_info *bp_info;
893         struct qm_fd fd_arr[DPAA_TX_BURST_SIZE];
894         uint32_t frames_to_send, loop, sent = 0;
895         uint16_t state;
896         int ret;
897         uint32_t seqn, index, flags[DPAA_TX_BURST_SIZE] = {0};
898
899         if (unlikely(!RTE_PER_LCORE(dpaa_io))) {
900                 ret = rte_dpaa_portal_init((void *)0);
901                 if (ret) {
902                         DPAA_PMD_ERR("Failure in affining portal");
903                         return 0;
904                 }
905         }
906
907         DPAA_DP_LOG(DEBUG, "Transmitting %d buffers on queue: %p", nb_bufs, q);
908
909         while (nb_bufs) {
910                 frames_to_send = (nb_bufs > DPAA_TX_BURST_SIZE) ?
911                                 DPAA_TX_BURST_SIZE : nb_bufs;
912                 for (loop = 0; loop < frames_to_send; loop++) {
913                         mbuf = *(bufs++);
914                         seqn = mbuf->seqn;
915                         if (seqn != DPAA_INVALID_MBUF_SEQN) {
916                                 index = seqn - 1;
917                                 if (DPAA_PER_LCORE_DQRR_HELD & (1 << index)) {
918                                         flags[loop] =
919                                            ((index & QM_EQCR_DCA_IDXMASK) << 8);
920                                         flags[loop] |= QMAN_ENQUEUE_FLAG_DCA;
921                                         DPAA_PER_LCORE_DQRR_SIZE--;
922                                         DPAA_PER_LCORE_DQRR_HELD &=
923                                                                 ~(1 << index);
924                                 }
925                         }
926
927                         if (likely(RTE_MBUF_DIRECT(mbuf))) {
928                                 mp = mbuf->pool;
929                                 bp_info = DPAA_MEMPOOL_TO_POOL_INFO(mp);
930                                 if (likely(mp->ops_index ==
931                                                 bp_info->dpaa_ops_index &&
932                                         mbuf->nb_segs == 1 &&
933                                         rte_mbuf_refcnt_read(mbuf) == 1)) {
934                                         DPAA_MBUF_TO_CONTIG_FD(mbuf,
935                                                 &fd_arr[loop], bp_info->bpid);
936                                         if (mbuf->ol_flags &
937                                                 DPAA_TX_CKSUM_OFFLOAD_MASK)
938                                                 dpaa_unsegmented_checksum(mbuf,
939                                                         &fd_arr[loop]);
940                                         continue;
941                                 }
942                         } else {
943                                 mi = rte_mbuf_from_indirect(mbuf);
944                                 mp = mi->pool;
945                         }
946
947                         bp_info = DPAA_MEMPOOL_TO_POOL_INFO(mp);
948                         if (likely(mp->ops_index == bp_info->dpaa_ops_index)) {
949                                 state = tx_on_dpaa_pool(mbuf, bp_info,
950                                                         &fd_arr[loop]);
951                                 if (unlikely(state)) {
952                                         /* Set frames_to_send & nb_bufs so
953                                          * that packets are transmitted till
954                                          * previous frame.
955                                          */
956                                         frames_to_send = loop;
957                                         nb_bufs = loop;
958                                         goto send_pkts;
959                                 }
960                         } else {
961                                 /* TODO not supporting sg for external bufs*/
962                                 if (unlikely(mbuf->nb_segs > 1)) {
963                                         /* Set frames_to_send & nb_bufs so
964                                          * that packets are transmitted till
965                                          * previous frame.
966                                          */
967                                         frames_to_send = loop;
968                                         nb_bufs = loop;
969                                         goto send_pkts;
970                                 }
971                                 state = tx_on_external_pool(q, mbuf,
972                                                             &fd_arr[loop]);
973                                 if (unlikely(state)) {
974                                         /* Set frames_to_send & nb_bufs so
975                                          * that packets are transmitted till
976                                          * previous frame.
977                                          */
978                                         frames_to_send = loop;
979                                         nb_bufs = loop;
980                                         goto send_pkts;
981                                 }
982                         }
983                 }
984
985 send_pkts:
986                 loop = 0;
987                 while (loop < frames_to_send) {
988                         loop += qman_enqueue_multi(q, &fd_arr[loop],
989                                                    &flags[loop],
990                                                    frames_to_send - loop);
991                 }
992                 nb_bufs -= frames_to_send;
993                 sent += frames_to_send;
994         }
995
996         DPAA_DP_LOG(DEBUG, "Transmitted %d buffers on queue: %p", sent, q);
997
998         return sent;
999 }
1000
1001 uint16_t dpaa_eth_tx_drop_all(void *q  __rte_unused,
1002                               struct rte_mbuf **bufs __rte_unused,
1003                 uint16_t nb_bufs __rte_unused)
1004 {
1005         DPAA_DP_LOG(DEBUG, "Drop all packets");
1006
1007         /* Drop all incoming packets. No need to free packets here
1008          * because the rte_eth f/w frees up the packets through tx_buffer
1009          * callback in case this functions returns count less than nb_bufs
1010          */
1011         return 0;
1012 }