xref: /freebsd/sys/dev/dpaa/if_dtsec_rm.c (revision ec65e4f8d0654361df5e97d4de3518edebf76b46)
1 /*-
2  * Copyright (c) 2012 Semihalf.
3  * All rights reserved.
4  *
5  * Redistribution and use in source and binary forms, with or without
6  * modification, are permitted provided that the following conditions
7  * are met:
8  * 1. Redistributions of source code must retain the above copyright
9  *    notice, this list of conditions and the following disclaimer.
10  * 2. Redistributions in binary form must reproduce the above copyright
11  *    notice, this list of conditions and the following disclaimer in the
12  *    documentation and/or other materials provided with the distribution.
13  *
14  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
15  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
16  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
17  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
18  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
19  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
20  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
21  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
22  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
23  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
24  * SUCH DAMAGE.
25  */
26 
27 #include <sys/cdefs.h>
28 __FBSDID("$FreeBSD$");
29 
30 #include <sys/param.h>
31 #include <sys/systm.h>
32 #include <sys/kernel.h>
33 #include <sys/module.h>
34 #include <sys/bus.h>
35 #include <sys/rman.h>
36 #include <sys/malloc.h>
37 #include <sys/mbuf.h>
38 #include <sys/socket.h>
39 #include <sys/sysctl.h>
40 #include <sys/sockio.h>
41 
42 #include <net/ethernet.h>
43 #include <net/if.h>
44 #include <net/if_dl.h>
45 #include <net/if_media.h>
46 #include <net/if_types.h>
47 #include <net/if_arp.h>
48 
49 #include <dev/mii/mii.h>
50 #include <dev/mii/miivar.h>
51 
52 #include "miibus_if.h"
53 
54 #include <contrib/ncsw/inc/Peripherals/fm_mac_ext.h>
55 #include <contrib/ncsw/inc/Peripherals/fm_port_ext.h>
56 #include <contrib/ncsw/inc/xx_ext.h>
57 
58 #include "fman.h"
59 #include "bman.h"
60 #include "qman.h"
61 #include "if_dtsec.h"
62 #include "if_dtsec_rm.h"
63 
64 
65 /**
66  * @group dTSEC RM private defines.
67  * @{
68  */
69 #define	DTSEC_BPOOLS_USED	(1)
70 #define	DTSEC_MAX_TX_QUEUE_LEN	256
71 
72 struct dtsec_rm_frame_info {
73 	struct mbuf			*fi_mbuf;
74 	t_DpaaSGTE			fi_sgt[DPAA_NUM_OF_SG_TABLE_ENTRY];
75 };
76 
77 enum dtsec_rm_pool_params {
78 	DTSEC_RM_POOL_RX_LOW_MARK	= 16,
79 	DTSEC_RM_POOL_RX_HIGH_MARK	= 64,
80 	DTSEC_RM_POOL_RX_MAX_SIZE	= 256,
81 
82 	DTSEC_RM_POOL_FI_LOW_MARK	= 16,
83 	DTSEC_RM_POOL_FI_HIGH_MARK	= 64,
84 	DTSEC_RM_POOL_FI_MAX_SIZE	= 256,
85 };
86 
87 enum dtsec_rm_fqr_params {
88 	DTSEC_RM_FQR_RX_CHANNEL		= e_QM_FQ_CHANNEL_POOL1,
89 	DTSEC_RM_FQR_RX_WQ		= 1,
90 	DTSEC_RM_FQR_TX_CONF_CHANNEL	= e_QM_FQ_CHANNEL_SWPORTAL0,
91 	DTSEC_RM_FQR_TX_WQ		= 1,
92 	DTSEC_RM_FQR_TX_CONF_WQ		= 1
93 };
94 /** @} */
95 
96 
97 /**
98  * @group dTSEC Frame Info routines.
99  * @{
100  */
101 void
102 dtsec_rm_fi_pool_free(struct dtsec_softc *sc)
103 {
104 
105 	if (sc->sc_fi_zone != NULL)
106 		uma_zdestroy(sc->sc_fi_zone);
107 }
108 
109 int
110 dtsec_rm_fi_pool_init(struct dtsec_softc *sc)
111 {
112 
113 	snprintf(sc->sc_fi_zname, sizeof(sc->sc_fi_zname), "%s: Frame Info",
114 	    device_get_nameunit(sc->sc_dev));
115 
116 	sc->sc_fi_zone = uma_zcreate(sc->sc_fi_zname,
117 	    sizeof(struct dtsec_rm_frame_info), NULL, NULL, NULL, NULL,
118 	    sizeof(void *), 0);
119 	if (sc->sc_fi_zone == NULL)
120 		return (EIO);
121 
122 	return (0);
123 }
124 
125 static struct dtsec_rm_frame_info *
126 dtsec_rm_fi_alloc(struct dtsec_softc *sc)
127 {
128 	struct dtsec_rm_frame_info *fi;
129 
130 	fi = uma_zalloc(sc->sc_fi_zone, M_NOWAIT);
131 
132 	return (fi);
133 }
134 
135 static void
136 dtsec_rm_fi_free(struct dtsec_softc *sc, struct dtsec_rm_frame_info *fi)
137 {
138 
139 	XX_UntrackAddress(fi);
140 	uma_zfree(sc->sc_fi_zone, fi);
141 }
142 /** @} */
143 
144 
145 /**
146  * @group dTSEC FMan PORT routines.
147  * @{
148  */
149 int
150 dtsec_rm_fm_port_rx_init(struct dtsec_softc *sc, int unit)
151 {
152 	t_FmPortParams params;
153 	t_FmPortRxParams *rx_params;
154 	t_FmPortExtPools *pool_params;
155 	t_Error error;
156 
157 	memset(&params, 0, sizeof(params));
158 
159 	params.baseAddr = sc->sc_fm_base + sc->sc_port_rx_hw_id;
160 	params.h_Fm = sc->sc_fmh;
161 	params.portType = dtsec_fm_port_rx_type(sc->sc_eth_dev_type);
162 	params.portId = sc->sc_eth_id;
163 	params.independentModeEnable = FALSE;
164 	params.liodnBase = FM_PORT_LIODN_BASE;
165 	params.f_Exception = dtsec_fm_port_rx_exception_callback;
166 	params.h_App = sc;
167 
168 	rx_params = &params.specificParams.rxParams;
169 	rx_params->errFqid = sc->sc_rx_fqid;
170 	rx_params->dfltFqid = sc->sc_rx_fqid;
171 	rx_params->liodnOffset = 0;
172 
173 	pool_params = &rx_params->extBufPools;
174 	pool_params->numOfPoolsUsed = DTSEC_BPOOLS_USED;
175 	pool_params->extBufPool->id = sc->sc_rx_bpid;
176 	pool_params->extBufPool->size = FM_PORT_BUFFER_SIZE;
177 
178 	sc->sc_rxph = FM_PORT_Config(&params);
179 	if (sc->sc_rxph == NULL) {
180 		device_printf(sc->sc_dev, "couldn't configure FM Port RX.\n");
181 		return (ENXIO);
182 	}
183 
184 	error = FM_PORT_Init(sc->sc_rxph);
185 	if (error != E_OK) {
186 		device_printf(sc->sc_dev, "couldn't initialize FM Port RX.\n");
187 		FM_PORT_Free(sc->sc_rxph);
188 		return (ENXIO);
189 	}
190 
191 	if (bootverbose)
192 		device_printf(sc->sc_dev, "RX hw port 0x%02x initialized.\n",
193 		    sc->sc_port_rx_hw_id);
194 
195 	return (0);
196 }
197 
198 int
199 dtsec_rm_fm_port_tx_init(struct dtsec_softc *sc, int unit)
200 {
201 	t_FmPortParams params;
202 	t_FmPortNonRxParams *tx_params;
203 	t_Error error;
204 
205 	memset(&params, 0, sizeof(params));
206 
207 	params.baseAddr = sc->sc_fm_base + sc->sc_port_tx_hw_id;
208 	params.h_Fm = sc->sc_fmh;
209 	params.portType = dtsec_fm_port_tx_type(sc->sc_eth_dev_type);
210 	params.portId = sc->sc_eth_id;
211 	params.independentModeEnable = FALSE;
212 	params.liodnBase = FM_PORT_LIODN_BASE;
213 	params.f_Exception = dtsec_fm_port_tx_exception_callback;
214 	params.h_App = sc;
215 
216 	tx_params = &params.specificParams.nonRxParams;
217 	tx_params->errFqid = sc->sc_tx_conf_fqid;
218 	tx_params->dfltFqid = sc->sc_tx_conf_fqid;
219 	tx_params->qmChannel = sc->sc_port_tx_qman_chan;
220 #ifdef FM_OP_PARTITION_ERRATA_FMANx8
221 	tx_params->opLiodnOffset = 0;
222 #endif
223 
224 	sc->sc_txph = FM_PORT_Config(&params);
225 	if (sc->sc_txph == NULL) {
226 		device_printf(sc->sc_dev, "couldn't configure FM Port TX.\n");
227 		return (ENXIO);
228 	}
229 
230 	error = FM_PORT_Init(sc->sc_txph);
231 	if (error != E_OK) {
232 		device_printf(sc->sc_dev, "couldn't initialize FM Port TX.\n");
233 		FM_PORT_Free(sc->sc_txph);
234 		return (ENXIO);
235 	}
236 
237 	if (bootverbose)
238 		device_printf(sc->sc_dev, "TX hw port 0x%02x initialized.\n",
239 		    sc->sc_port_tx_hw_id);
240 
241 	return (0);
242 }
243 /** @} */
244 
245 
246 /**
247  * @group dTSEC buffer pools routines.
248  * @{
249  */
250 static t_Error
251 dtsec_rm_pool_rx_put_buffer(t_Handle h_BufferPool, uint8_t *buffer,
252     t_Handle context)
253 {
254 	struct dtsec_softc *sc;
255 
256 	sc = h_BufferPool;
257 	uma_zfree(sc->sc_rx_zone, buffer);
258 
259 	return (E_OK);
260 }
261 
262 static uint8_t *
263 dtsec_rm_pool_rx_get_buffer(t_Handle h_BufferPool, t_Handle *context)
264 {
265 	struct dtsec_softc *sc;
266 	uint8_t *buffer;
267 
268 	sc = h_BufferPool;
269 	buffer = uma_zalloc(sc->sc_rx_zone, M_NOWAIT);
270 
271 	return (buffer);
272 }
273 
274 static void
275 dtsec_rm_pool_rx_depleted(t_Handle h_App, bool in)
276 {
277 	struct dtsec_softc *sc;
278 	unsigned int count;
279 
280 	sc = h_App;
281 
282 	if (!in)
283 		return;
284 
285 	while (1) {
286 		count = bman_count(sc->sc_rx_pool);
287 		if (count > DTSEC_RM_POOL_RX_HIGH_MARK)
288 			return;
289 
290 		bman_pool_fill(sc->sc_rx_pool, DTSEC_RM_POOL_RX_HIGH_MARK);
291 	}
292 }
293 
294 void
295 dtsec_rm_pool_rx_free(struct dtsec_softc *sc)
296 {
297 
298 	if (sc->sc_rx_pool != NULL)
299 		bman_pool_destroy(sc->sc_rx_pool);
300 
301 	if (sc->sc_rx_zone != NULL)
302 		uma_zdestroy(sc->sc_rx_zone);
303 }
304 
305 int
306 dtsec_rm_pool_rx_init(struct dtsec_softc *sc)
307 {
308 
309 	/* FM_PORT_BUFFER_SIZE must be less than PAGE_SIZE */
310 	CTASSERT(FM_PORT_BUFFER_SIZE < PAGE_SIZE);
311 
312 	snprintf(sc->sc_rx_zname, sizeof(sc->sc_rx_zname), "%s: RX Buffers",
313 	    device_get_nameunit(sc->sc_dev));
314 
315 	sc->sc_rx_zone = uma_zcreate(sc->sc_rx_zname, FM_PORT_BUFFER_SIZE, NULL,
316 	    NULL, NULL, NULL, FM_PORT_BUFFER_SIZE, 0);
317 	if (sc->sc_rx_zone == NULL)
318 		return (EIO);
319 
320 	sc->sc_rx_pool = bman_pool_create(&sc->sc_rx_bpid, FM_PORT_BUFFER_SIZE,
321 	    0, 0, DTSEC_RM_POOL_RX_MAX_SIZE, dtsec_rm_pool_rx_get_buffer,
322 	    dtsec_rm_pool_rx_put_buffer, DTSEC_RM_POOL_RX_LOW_MARK,
323 	    DTSEC_RM_POOL_RX_HIGH_MARK, 0, 0, dtsec_rm_pool_rx_depleted, sc, NULL,
324 	    NULL);
325 	if (sc->sc_rx_pool == NULL) {
326 		dtsec_rm_pool_rx_free(sc);
327 		return (EIO);
328 	}
329 
330 	return (0);
331 }
332 /** @} */
333 
334 
335 /**
336  * @group dTSEC Frame Queue Range routines.
337  * @{
338  */
339 static void
340 dtsec_rm_fqr_mext_free(struct mbuf *m, void *buffer, void *arg)
341 {
342 	struct dtsec_softc *sc;
343 
344 	sc = arg;
345 	if (bman_count(sc->sc_rx_pool) <= DTSEC_RM_POOL_RX_MAX_SIZE)
346 		bman_put_buffer(sc->sc_rx_pool, buffer);
347 	else
348 		dtsec_rm_pool_rx_put_buffer(arg, buffer, NULL);
349 }
350 
351 static e_RxStoreResponse
352 dtsec_rm_fqr_rx_callback(t_Handle app, t_Handle fqr, t_Handle portal,
353     uint32_t fqid_off, t_DpaaFD *frame)
354 {
355 	struct dtsec_softc *sc;
356 	struct mbuf *m;
357 
358 	m = NULL;
359 	sc = app;
360 
361 	KASSERT(DPAA_FD_GET_FORMAT(frame) == e_DPAA_FD_FORMAT_TYPE_SHORT_SBSF,
362 	    ("%s(): Got unsupported frame format 0x%02X!", __func__,
363 	    DPAA_FD_GET_FORMAT(frame)));
364 
365 	KASSERT(DPAA_FD_GET_OFFSET(frame) == 0,
366 	    ("%s(): Only offset 0 is supported!", __func__));
367 
368 	if (DPAA_FD_GET_STATUS(frame) != 0) {
369 		device_printf(sc->sc_dev, "RX error: 0x%08X\n",
370 		    DPAA_FD_GET_STATUS(frame));
371 		goto err;
372 	}
373 
374 	m = m_gethdr(M_NOWAIT, MT_HEADER);
375 	if (m == NULL)
376 		goto err;
377 
378 	m_extadd(m, DPAA_FD_GET_ADDR(frame), FM_PORT_BUFFER_SIZE,
379 	    dtsec_rm_fqr_mext_free, DPAA_FD_GET_ADDR(frame), sc, 0,
380 	    EXT_NET_DRV);
381 
382 	m->m_pkthdr.rcvif = sc->sc_ifnet;
383 	m->m_len = DPAA_FD_GET_LENGTH(frame);
384 	m_fixhdr(m);
385 
386 	(*sc->sc_ifnet->if_input)(sc->sc_ifnet, m);
387 
388 	return (e_RX_STORE_RESPONSE_CONTINUE);
389 
390 err:
391 	bman_put_buffer(sc->sc_rx_pool, DPAA_FD_GET_ADDR(frame));
392 	if (m != NULL)
393 		m_freem(m);
394 
395 	return (e_RX_STORE_RESPONSE_CONTINUE);
396 }
397 
398 static e_RxStoreResponse
399 dtsec_rm_fqr_tx_confirm_callback(t_Handle app, t_Handle fqr, t_Handle portal,
400     uint32_t fqid_off, t_DpaaFD *frame)
401 {
402 	struct dtsec_rm_frame_info *fi;
403 	struct dtsec_softc *sc;
404 	unsigned int qlen;
405 	t_DpaaSGTE *sgt0;
406 
407 	sc = app;
408 
409 	if (DPAA_FD_GET_STATUS(frame) != 0)
410 		device_printf(sc->sc_dev, "TX error: 0x%08X\n",
411 		    DPAA_FD_GET_STATUS(frame));
412 
413 	/*
414 	 * We are storing struct dtsec_rm_frame_info in first entry
415 	 * of scatter-gather table.
416 	 */
417 	sgt0 = DPAA_FD_GET_ADDR(frame);
418 	fi = DPAA_SGTE_GET_ADDR(sgt0);
419 
420 	/* Free transmitted frame */
421 	m_freem(fi->fi_mbuf);
422 	dtsec_rm_fi_free(sc, fi);
423 
424 	qlen = qman_fqr_get_counter(sc->sc_tx_conf_fqr, 0,
425 	    e_QM_FQR_COUNTERS_FRAME);
426 
427 	if (qlen == 0) {
428 		DTSEC_LOCK(sc);
429 
430 		if (sc->sc_tx_fqr_full) {
431 			sc->sc_tx_fqr_full = 0;
432 			dtsec_rm_if_start_locked(sc);
433 		}
434 
435 		DTSEC_UNLOCK(sc);
436 	}
437 
438 	return (e_RX_STORE_RESPONSE_CONTINUE);
439 }
440 
441 void
442 dtsec_rm_fqr_rx_free(struct dtsec_softc *sc)
443 {
444 
445 	if (sc->sc_rx_fqr)
446 		qman_fqr_free(sc->sc_rx_fqr);
447 }
448 
449 int
450 dtsec_rm_fqr_rx_init(struct dtsec_softc *sc)
451 {
452 	t_Error error;
453 	t_Handle fqr;
454 
455 	/* Default Frame Queue */
456 	fqr = qman_fqr_create(1, DTSEC_RM_FQR_RX_CHANNEL, DTSEC_RM_FQR_RX_WQ,
457 	    FALSE, 0, FALSE, FALSE, TRUE, FALSE, 0, 0, 0);
458 	if (fqr == NULL) {
459 		device_printf(sc->sc_dev, "could not create default RX queue"
460 		    "\n");
461 		return (EIO);
462 	}
463 
464 	sc->sc_rx_fqr = fqr;
465 	sc->sc_rx_fqid = qman_fqr_get_base_fqid(fqr);
466 
467 	error = qman_fqr_register_cb(fqr, dtsec_rm_fqr_rx_callback, sc);
468 	if (error != E_OK) {
469 		device_printf(sc->sc_dev, "could not register RX callback\n");
470 		dtsec_rm_fqr_rx_free(sc);
471 		return (EIO);
472 	}
473 
474 	return (0);
475 }
476 
477 void
478 dtsec_rm_fqr_tx_free(struct dtsec_softc *sc)
479 {
480 
481 	if (sc->sc_tx_fqr)
482 		qman_fqr_free(sc->sc_tx_fqr);
483 
484 	if (sc->sc_tx_conf_fqr)
485 		qman_fqr_free(sc->sc_tx_conf_fqr);
486 }
487 
488 int
489 dtsec_rm_fqr_tx_init(struct dtsec_softc *sc)
490 {
491 	t_Error error;
492 	t_Handle fqr;
493 
494 	/* TX Frame Queue */
495 	fqr = qman_fqr_create(1, sc->sc_port_tx_qman_chan,
496 	    DTSEC_RM_FQR_TX_WQ, FALSE, 0, FALSE, FALSE, TRUE, FALSE, 0, 0, 0);
497 	if (fqr == NULL) {
498 		device_printf(sc->sc_dev, "could not create default TX queue"
499 		    "\n");
500 		return (EIO);
501 	}
502 
503 	sc->sc_tx_fqr = fqr;
504 
505 	/* TX Confirmation Frame Queue */
506 	fqr = qman_fqr_create(1, DTSEC_RM_FQR_TX_CONF_CHANNEL,
507 	    DTSEC_RM_FQR_TX_CONF_WQ, FALSE, 0, FALSE, FALSE, TRUE, FALSE, 0, 0,
508 	    0);
509 	if (fqr == NULL) {
510 		device_printf(sc->sc_dev, "could not create TX confirmation "
511 		    "queue\n");
512 		dtsec_rm_fqr_tx_free(sc);
513 		return (EIO);
514 	}
515 
516 	sc->sc_tx_conf_fqr = fqr;
517 	sc->sc_tx_conf_fqid = qman_fqr_get_base_fqid(fqr);
518 
519 	error = qman_fqr_register_cb(fqr, dtsec_rm_fqr_tx_confirm_callback, sc);
520 	if (error != E_OK) {
521 		device_printf(sc->sc_dev, "could not register TX confirmation "
522 		    "callback\n");
523 		dtsec_rm_fqr_tx_free(sc);
524 		return (EIO);
525 	}
526 
527 	return (0);
528 }
529 /** @} */
530 
531 
532 /**
533  * @group dTSEC IFnet routines.
534  * @{
535  */
536 void
537 dtsec_rm_if_start_locked(struct dtsec_softc *sc)
538 {
539 	vm_size_t dsize, psize, ssize;
540 	struct dtsec_rm_frame_info *fi;
541 	unsigned int qlen, i;
542 	struct mbuf *m0, *m;
543 	vm_offset_t vaddr;
544 	vm_paddr_t paddr;
545 	t_DpaaFD fd;
546 
547 	DTSEC_LOCK_ASSERT(sc);
548 	/* TODO: IFF_DRV_OACTIVE */
549 
550 	if ((sc->sc_mii->mii_media_status & IFM_ACTIVE) == 0)
551 		return;
552 
553 	if ((sc->sc_ifnet->if_drv_flags & IFF_DRV_RUNNING) != IFF_DRV_RUNNING)
554 		return;
555 
556 	while (!IFQ_DRV_IS_EMPTY(&sc->sc_ifnet->if_snd)) {
557 		/* Check length of the TX queue */
558 		qlen = qman_fqr_get_counter(sc->sc_tx_fqr, 0,
559 		    e_QM_FQR_COUNTERS_FRAME);
560 
561 		if (qlen >= DTSEC_MAX_TX_QUEUE_LEN) {
562 			sc->sc_tx_fqr_full = 1;
563 			return;
564 		}
565 
566 		fi = dtsec_rm_fi_alloc(sc);
567 		if (fi == NULL)
568 			return;
569 
570 		IFQ_DRV_DEQUEUE(&sc->sc_ifnet->if_snd, m0);
571 		if (m0 == NULL) {
572 			dtsec_rm_fi_free(sc, fi);
573 			return;
574 		}
575 
576 		i = 0;
577 		m = m0;
578 		psize = 0;
579 		dsize = 0;
580 		fi->fi_mbuf = m0;
581 		while (m && i < DPAA_NUM_OF_SG_TABLE_ENTRY) {
582 			if (m->m_len == 0)
583 				continue;
584 
585 			/*
586 			 * First entry in scatter-gather table is used to keep
587 			 * pointer to frame info structure.
588 			 */
589 			DPAA_SGTE_SET_ADDR(&fi->fi_sgt[i], (void *)fi);
590 			DPAA_SGTE_SET_LENGTH(&fi->fi_sgt[i], 0);
591 
592 			DPAA_SGTE_SET_EXTENSION(&fi->fi_sgt[i], 0);
593 			DPAA_SGTE_SET_FINAL(&fi->fi_sgt[i], 0);
594 			DPAA_SGTE_SET_BPID(&fi->fi_sgt[i], 0);
595 			DPAA_SGTE_SET_OFFSET(&fi->fi_sgt[i], 0);
596 			i++;
597 
598 			dsize = m->m_len;
599 			vaddr = (vm_offset_t)m->m_data;
600 			while (dsize > 0 && i < DPAA_NUM_OF_SG_TABLE_ENTRY) {
601 				paddr = XX_VirtToPhys((void *)vaddr);
602 				ssize = PAGE_SIZE - (paddr & PAGE_MASK);
603 				if (m->m_len < ssize)
604 					ssize = m->m_len;
605 
606 				DPAA_SGTE_SET_ADDR(&fi->fi_sgt[i],
607 				    (void *)vaddr);
608 				DPAA_SGTE_SET_LENGTH(&fi->fi_sgt[i], ssize);
609 
610 				DPAA_SGTE_SET_EXTENSION(&fi->fi_sgt[i], 0);
611 				DPAA_SGTE_SET_FINAL(&fi->fi_sgt[i], 0);
612 				DPAA_SGTE_SET_BPID(&fi->fi_sgt[i], 0);
613 				DPAA_SGTE_SET_OFFSET(&fi->fi_sgt[i], 0);
614 
615 				dsize -= ssize;
616 				vaddr += ssize;
617 				psize += ssize;
618 				i++;
619 			}
620 
621 			if (dsize > 0)
622 				break;
623 
624 			m = m->m_next;
625 		}
626 
627 		/* Check if SG table was constructed properly */
628 		if (m != NULL || dsize != 0) {
629 			dtsec_rm_fi_free(sc, fi);
630 			m_freem(m0);
631 			continue;
632 		}
633 
634 		DPAA_SGTE_SET_FINAL(&fi->fi_sgt[i-1], 1);
635 
636 		DPAA_FD_SET_ADDR(&fd, fi->fi_sgt);
637 		DPAA_FD_SET_LENGTH(&fd, psize);
638 		DPAA_FD_SET_FORMAT(&fd, e_DPAA_FD_FORMAT_TYPE_SHORT_MBSF);
639 
640 		DPAA_FD_SET_DD(&fd, 0);
641 		DPAA_FD_SET_PID(&fd, 0);
642 		DPAA_FD_SET_BPID(&fd, 0);
643 		DPAA_FD_SET_OFFSET(&fd, 0);
644 		DPAA_FD_SET_STATUS(&fd, 0);
645 
646 		DTSEC_UNLOCK(sc);
647 		if (qman_fqr_enqueue(sc->sc_tx_fqr, 0, &fd) != E_OK) {
648 			dtsec_rm_fi_free(sc, fi);
649 			m_freem(m0);
650 		}
651 		DTSEC_LOCK(sc);
652 	}
653 }
654 /** @} */
655