1 /* SPDX-License-Identifier: BSD-3-Clause
3 * Copyright (C) 2014 Freescale Semiconductor, Inc.
4 * Copyright 2015-2019 NXP
7 #ifndef _FSL_QBMAN_PORTAL_H
8 #define _FSL_QBMAN_PORTAL_H
10 #include <rte_compat.h>
11 #include <fsl_qbman_base.h>
13 #define SVR_LS1080A 0x87030000
14 #define SVR_LS2080A 0x87010000
15 #define SVR_LS2088A 0x87090000
16 #define SVR_LX2160A 0x87360000
18 /* Variable to store DPAA2 platform type */
19 extern uint32_t dpaa2_svr_family;
22 * DOC - QBMan portal APIs to implement the following functions:
23 * - Initialize and destroy Software portal object.
24 * - Read and write Software portal interrupt registers.
25 * - Enqueue, including setting the enqueue descriptor, and issuing enqueue
27 * - Dequeue, including setting the dequeue descriptor, issuing dequeue command,
28 * parsing the dequeue response in DQRR and memory, parsing the state change
30 * - Release, including setting the release descriptor, and issuing the buffer
32 * - Acquire, acquire the buffer from the given buffer pool.
34 * - Channel management, enable/disable CDAN with or without context.
38 * qbman_swp_init() - Create a functional object representing the given
39 * QBMan portal descriptor.
40 * @d: the given qbman swp descriptor
42 * Return qbman_swp portal object for success, NULL if the object cannot
45 struct qbman_swp *qbman_swp_init(const struct qbman_swp_desc *d);
48 * qbman_swp_finish() - Create and destroy a functional object representing
49 * the given QBMan portal descriptor.
50 * @p: the qbman_swp object to be destroyed.
53 void qbman_swp_finish(struct qbman_swp *p);
56 * qbman_swp_invalidate() - Invalidate the cache enabled area of the QBMan
57 * portal. This is required to be called if a portal moved to another core
58 * because the QBMan portal area is non coherent
59 * @p: the qbman_swp object to be invalidated
62 void qbman_swp_invalidate(struct qbman_swp *p);
65 * qbman_swp_get_desc() - Get the descriptor of the given portal object.
66 * @p: the given portal object.
68 * Return the descriptor for this portal.
70 const struct qbman_swp_desc *qbman_swp_get_desc(struct qbman_swp *p);
76 /* EQCR ring interrupt */
77 #define QBMAN_SWP_INTERRUPT_EQRI ((uint32_t)0x00000001)
78 /* Enqueue command dispatched interrupt */
79 #define QBMAN_SWP_INTERRUPT_EQDI ((uint32_t)0x00000002)
80 /* DQRR non-empty interrupt */
81 #define QBMAN_SWP_INTERRUPT_DQRI ((uint32_t)0x00000004)
82 /* RCR ring interrupt */
83 #define QBMAN_SWP_INTERRUPT_RCRI ((uint32_t)0x00000008)
84 /* Release command dispatched interrupt */
85 #define QBMAN_SWP_INTERRUPT_RCDI ((uint32_t)0x00000010)
86 /* Volatile dequeue command interrupt */
87 #define QBMAN_SWP_INTERRUPT_VDCI ((uint32_t)0x00000020)
90 * qbman_swp_interrupt_get_vanish() - Get the data in software portal
91 * interrupt status disable register.
92 * @p: the given software portal object.
94 * Return the settings in SWP_ISDR register.
96 uint32_t qbman_swp_interrupt_get_vanish(struct qbman_swp *p);
99 * qbman_swp_interrupt_set_vanish() - Set the data in software portal
100 * interrupt status disable register.
101 * @p: the given software portal object.
102 * @mask: The value to set in SWP_IDSR register.
104 void qbman_swp_interrupt_set_vanish(struct qbman_swp *p, uint32_t mask);
107 * qbman_swp_interrupt_read_status() - Get the data in software portal
108 * interrupt status register.
109 * @p: the given software portal object.
111 * Return the settings in SWP_ISR register.
113 uint32_t qbman_swp_interrupt_read_status(struct qbman_swp *p);
116 * qbman_swp_interrupt_clear_status() - Set the data in software portal
117 * interrupt status register.
118 * @p: the given software portal object.
119 * @mask: The value to set in SWP_ISR register.
122 void qbman_swp_interrupt_clear_status(struct qbman_swp *p, uint32_t mask);
125 * qbman_swp_dqrr_thrshld_read_status() - Get the data in software portal
126 * DQRR interrupt threshold register.
127 * @p: the given software portal object.
129 uint32_t qbman_swp_dqrr_thrshld_read_status(struct qbman_swp *p);
132 * qbman_swp_dqrr_thrshld_write() - Set the data in software portal
133 * DQRR interrupt threshold register.
134 * @p: the given software portal object.
135 * @mask: The value to set in SWP_DQRR_ITR register.
137 void qbman_swp_dqrr_thrshld_write(struct qbman_swp *p, uint32_t mask);
140 * qbman_swp_intr_timeout_read_status() - Get the data in software portal
141 * Interrupt Time-Out period register.
142 * @p: the given software portal object.
144 uint32_t qbman_swp_intr_timeout_read_status(struct qbman_swp *p);
147 * qbman_swp_intr_timeout_write() - Set the data in software portal
148 * Interrupt Time-Out period register.
149 * @p: the given software portal object.
150 * @mask: The value to set in SWP_ITPR register.
152 void qbman_swp_intr_timeout_write(struct qbman_swp *p, uint32_t mask);
155 * qbman_swp_interrupt_get_trigger() - Get the data in software portal
156 * interrupt enable register.
157 * @p: the given software portal object.
159 * Return the settings in SWP_IER register.
161 uint32_t qbman_swp_interrupt_get_trigger(struct qbman_swp *p);
164 * qbman_swp_interrupt_set_trigger() - Set the data in software portal
165 * interrupt enable register.
166 * @p: the given software portal object.
167 * @mask: The value to set in SWP_IER register.
169 void qbman_swp_interrupt_set_trigger(struct qbman_swp *p, uint32_t mask);
172 * qbman_swp_interrupt_get_inhibit() - Get the data in software portal
173 * interrupt inhibit register.
174 * @p: the given software portal object.
176 * Return the settings in SWP_IIR register.
178 int qbman_swp_interrupt_get_inhibit(struct qbman_swp *p);
181 * qbman_swp_interrupt_set_inhibit() - Set the data in software portal
182 * interrupt inhibit register.
183 * @p: the given software portal object.
184 * @mask: The value to set in SWP_IIR register.
186 void qbman_swp_interrupt_set_inhibit(struct qbman_swp *p, int inhibit);
193 * struct qbman_result - structure for qbman dequeue response and/or
195 * @dont_manipulate_directly: the 16 32bit data to represent the whole
196 * possible qbman dequeue result.
198 struct qbman_result {
202 uint8_t reserved[63];
247 *A DQRI interrupt can be generated when there are dequeue results on the
248 * portal's DQRR (this mechanism does not deal with "pull" dequeues to
249 * user-supplied 'storage' addresses). There are two parameters to this
250 * interrupt source, one is a threshold and the other is a timeout. The
251 * interrupt will fire if either the fill-level of the ring exceeds 'thresh', or
252 * if the ring has been non-empty for been longer than 'timeout' nanoseconds.
253 * For timeout, an approximation to the desired nanosecond-granularity value is
254 * made, so there are get and set APIs to allow the user to see what actual
255 * timeout is set (compared to the timeout that was requested).
257 int qbman_swp_dequeue_thresh(struct qbman_swp *s, unsigned int thresh);
258 int qbman_swp_dequeue_set_timeout(struct qbman_swp *s, unsigned int timeout);
259 int qbman_swp_dequeue_get_timeout(struct qbman_swp *s, unsigned int *timeout);
261 /* ------------------- */
262 /* Push-mode dequeuing */
263 /* ------------------- */
265 /* The user of a portal can enable and disable push-mode dequeuing of up to 16
266 * channels independently. It does not specify this toggling by channel IDs, but
267 * rather by specifying the index (from 0 to 15) that has been mapped to the
272 * qbman_swp_push_get() - Get the push dequeue setup.
273 * @s: the software portal object.
274 * @channel_idx: the channel index to query.
275 * @enabled: returned boolean to show whether the push dequeue is enabled for
278 void qbman_swp_push_get(struct qbman_swp *s, uint8_t channel_idx, int *enabled);
281 * qbman_swp_push_set() - Enable or disable push dequeue.
282 * @s: the software portal object.
283 * @channel_idx: the channel index..
284 * @enable: enable or disable push dequeue.
286 * The user of a portal can enable and disable push-mode dequeuing of up to 16
287 * channels independently. It does not specify this toggling by channel IDs, but
288 * rather by specifying the index (from 0 to 15) that has been mapped to the
292 void qbman_swp_push_set(struct qbman_swp *s, uint8_t channel_idx, int enable);
294 /* ------------------- */
295 /* Pull-mode dequeuing */
296 /* ------------------- */
299 * struct qbman_pull_desc - the structure for pull dequeue descriptor
301 struct qbman_pull_desc {
303 uint32_t dont_manipulate_directly[16];
311 uint64_t rsp_addr_virt;
317 enum qbman_pull_type_e {
318 /* dequeue with priority precedence, respect intra-class scheduling */
319 qbman_pull_type_prio = 1,
320 /* dequeue with active FQ precedence, respect ICS */
321 qbman_pull_type_active,
322 /* dequeue with active FQ precedence, no ICS */
323 qbman_pull_type_active_noics
327 * qbman_pull_desc_clear() - Clear the contents of a descriptor to
328 * default/starting state.
329 * @d: the pull dequeue descriptor to be cleared.
332 void qbman_pull_desc_clear(struct qbman_pull_desc *d);
335 * qbman_pull_desc_set_storage()- Set the pull dequeue storage
336 * @d: the pull dequeue descriptor to be set.
337 * @storage: the pointer of the memory to store the dequeue result.
338 * @storage_phys: the physical address of the storage memory.
339 * @stash: to indicate whether write allocate is enabled.
341 * If not called, or if called with 'storage' as NULL, the result pull dequeues
342 * will produce results to DQRR. If 'storage' is non-NULL, then results are
343 * produced to the given memory location (using the physical/DMA address which
344 * the caller provides in 'storage_phys'), and 'stash' controls whether or not
345 * those writes to main-memory express a cache-warming attribute.
348 void qbman_pull_desc_set_storage(struct qbman_pull_desc *d,
349 struct qbman_result *storage,
350 uint64_t storage_phys,
353 * qbman_pull_desc_set_numframes() - Set the number of frames to be dequeued.
354 * @d: the pull dequeue descriptor to be set.
355 * @numframes: number of frames to be set, must be between 1 and 16, inclusive.
358 void qbman_pull_desc_set_numframes(struct qbman_pull_desc *d,
361 * qbman_pull_desc_set_token() - Set dequeue token for pull command
362 * @d: the dequeue descriptor
363 * @token: the token to be set
365 * token is the value that shows up in the dequeue response that can be used to
366 * detect when the results have been published. The easiest technique is to zero
367 * result "storage" before issuing a dequeue, and use any non-zero 'token' value
369 void qbman_pull_desc_set_token(struct qbman_pull_desc *d, uint8_t token);
371 /* Exactly one of the following descriptor "actions" should be set. (Calling any
372 * one of these will replace the effect of any prior call to one of these.)
373 * - pull dequeue from the given frame queue (FQ)
374 * - pull dequeue from any FQ in the given work queue (WQ)
375 * - pull dequeue from any FQ in any WQ in the given channel
378 * qbman_pull_desc_set_fq() - Set fqid from which the dequeue command dequeues.
379 * @fqid: the frame queue index of the given FQ.
382 void qbman_pull_desc_set_fq(struct qbman_pull_desc *d, uint32_t fqid);
385 * qbman_pull_desc_set_wq() - Set wqid from which the dequeue command dequeues.
386 * @wqid: composed of channel id and wqid within the channel.
387 * @dct: the dequeue command type.
389 void qbman_pull_desc_set_wq(struct qbman_pull_desc *d, uint32_t wqid,
390 enum qbman_pull_type_e dct);
392 /* qbman_pull_desc_set_channel() - Set channelid from which the dequeue command
394 * @chid: the channel id to be dequeued.
395 * @dct: the dequeue command type.
397 void qbman_pull_desc_set_channel(struct qbman_pull_desc *d, uint32_t chid,
398 enum qbman_pull_type_e dct);
401 * qbman_pull_desc_set_rad() - Decide whether reschedule the fq after dequeue
403 * @rad: 1 = Reschedule the FQ after dequeue.
404 * 0 = Allow the FQ to remain active after dequeue.
406 void qbman_pull_desc_set_rad(struct qbman_pull_desc *d, int rad);
409 * qbman_swp_pull() - Issue the pull dequeue command
410 * @s: the software portal object.
411 * @d: the software portal descriptor which has been configured with
412 * the set of qbman_pull_desc_set_*() calls.
414 * Return 0 for success, and -EBUSY if the software portal is not ready
415 * to do pull dequeue.
418 int qbman_swp_pull(struct qbman_swp *s, struct qbman_pull_desc *d);
420 /* -------------------------------- */
421 /* Polling DQRR for dequeue results */
422 /* -------------------------------- */
425 * qbman_swp_dqrr_next() - Get an valid DQRR entry.
426 * @s: the software portal object.
428 * Return NULL if there are no unconsumed DQRR entries. Return a DQRR entry
429 * only once, so repeated calls can return a sequence of DQRR entries, without
430 * requiring they be consumed immediately or in any particular order.
433 const struct qbman_result *qbman_swp_dqrr_next(struct qbman_swp *p);
436 * qbman_swp_prefetch_dqrr_next() - prefetch the next DQRR entry.
437 * @s: the software portal object.
440 void qbman_swp_prefetch_dqrr_next(struct qbman_swp *s);
443 * qbman_swp_dqrr_consume() - Consume DQRR entries previously returned from
444 * qbman_swp_dqrr_next().
445 * @s: the software portal object.
446 * @dq: the DQRR entry to be consumed.
449 void qbman_swp_dqrr_consume(struct qbman_swp *s, const struct qbman_result *dq);
452 * qbman_swp_dqrr_idx_consume() - Given the DQRR index consume the DQRR entry
453 * @s: the software portal object.
454 * @dqrr_index: the DQRR index entry to be consumed.
457 void qbman_swp_dqrr_idx_consume(struct qbman_swp *s, uint8_t dqrr_index);
460 * qbman_get_dqrr_idx() - Get dqrr index from the given dqrr
461 * @dqrr: the given dqrr object.
466 uint8_t qbman_get_dqrr_idx(const struct qbman_result *dqrr);
469 * qbman_get_dqrr_from_idx() - Use index to get the dqrr entry from the
471 * @s: the given portal.
472 * @idx: the dqrr index.
474 * Return dqrr entry object.
477 struct qbman_result *qbman_get_dqrr_from_idx(struct qbman_swp *s, uint8_t idx);
479 /* ------------------------------------------------- */
480 /* Polling user-provided storage for dequeue results */
481 /* ------------------------------------------------- */
484 * qbman_result_has_new_result() - Check and get the dequeue response from the
485 * dq storage memory set in pull dequeue command
486 * @s: the software portal object.
487 * @dq: the dequeue result read from the memory.
489 * Only used for user-provided storage of dequeue results, not DQRR. For
490 * efficiency purposes, the driver will perform any required endianness
491 * conversion to ensure that the user's dequeue result storage is in host-endian
492 * format (whether or not that is the same as the little-endian format that
493 * hardware DMA'd to the user's storage). As such, once the user has called
494 * qbman_result_has_new_result() and been returned a valid dequeue result,
495 * they should not call it again on the same memory location (except of course
496 * if another dequeue command has been executed to produce a new result to that
499 * Return 1 for getting a valid dequeue result, or 0 for not getting a valid
503 int qbman_result_has_new_result(struct qbman_swp *s,
504 struct qbman_result *dq);
507 * qbman_check_command_complete() - Check if the previous issued dq commnd
508 * is completed and results are available in memory.
509 * @s: the software portal object.
510 * @dq: the dequeue result read from the memory.
512 * Return 1 for getting a valid dequeue result, or 0 for not getting a valid
516 int qbman_check_command_complete(struct qbman_result *dq);
519 int qbman_check_new_result(struct qbman_result *dq);
521 /* -------------------------------------------------------- */
522 /* Parsing dequeue entries (DQRR and user-provided storage) */
523 /* -------------------------------------------------------- */
526 * qbman_result_is_DQ() - check the dequeue result is a dequeue response or not
527 * @dq: the dequeue result to be checked.
529 * DQRR entries may contain non-dequeue results, ie. notifications
531 int qbman_result_is_DQ(const struct qbman_result *dq);
534 * qbman_result_is_SCN() - Check the dequeue result is notification or not
535 * @dq: the dequeue result to be checked.
537 * All the non-dequeue results (FQDAN/CDAN/CSCN/...) are "state change
538 * notifications" of one type or another. Some APIs apply to all of them, of the
539 * form qbman_result_SCN_***().
541 static inline int qbman_result_is_SCN(const struct qbman_result *dq)
543 return !qbman_result_is_DQ(dq);
546 /* Recognise different notification types, only required if the user allows for
547 * these to occur, and cares about them when they do.
551 * qbman_result_is_FQDAN() - Check for FQ Data Availability
552 * @dq: the qbman_result object.
554 * Return 1 if this is FQDAN.
556 int qbman_result_is_FQDAN(const struct qbman_result *dq);
559 * qbman_result_is_CDAN() - Check for Channel Data Availability
560 * @dq: the qbman_result object to check.
562 * Return 1 if this is CDAN.
564 int qbman_result_is_CDAN(const struct qbman_result *dq);
567 * qbman_result_is_CSCN() - Check for Congestion State Change
568 * @dq: the qbman_result object to check.
570 * Return 1 if this is CSCN.
572 int qbman_result_is_CSCN(const struct qbman_result *dq);
575 * qbman_result_is_BPSCN() - Check for Buffer Pool State Change.
576 * @dq: the qbman_result object to check.
578 * Return 1 if this is BPSCN.
580 int qbman_result_is_BPSCN(const struct qbman_result *dq);
583 * qbman_result_is_CGCU() - Check for Congestion Group Count Update.
584 * @dq: the qbman_result object to check.
586 * Return 1 if this is CGCU.
588 int qbman_result_is_CGCU(const struct qbman_result *dq);
590 /* Frame queue state change notifications; (FQDAN in theory counts too as it
591 * leaves a FQ parked, but it is primarily a data availability notification)
595 * qbman_result_is_FQRN() - Check for FQ Retirement Notification.
596 * @dq: the qbman_result object to check.
598 * Return 1 if this is FQRN.
600 int qbman_result_is_FQRN(const struct qbman_result *dq);
603 * qbman_result_is_FQRNI() - Check for FQ Retirement Immediate
604 * @dq: the qbman_result object to check.
606 * Return 1 if this is FQRNI.
608 int qbman_result_is_FQRNI(const struct qbman_result *dq);
611 * qbman_result_is_FQPN() - Check for FQ Park Notification
612 * @dq: the qbman_result object to check.
614 * Return 1 if this is FQPN.
616 int qbman_result_is_FQPN(const struct qbman_result *dq);
618 /* Parsing frame dequeue results (qbman_result_is_DQ() must be TRUE)
621 #define QBMAN_DQ_STAT_FQEMPTY 0x80
623 #define QBMAN_DQ_STAT_HELDACTIVE 0x40
624 /* FQ force eligible */
625 #define QBMAN_DQ_STAT_FORCEELIGIBLE 0x20
627 #define QBMAN_DQ_STAT_VALIDFRAME 0x10
629 #define QBMAN_DQ_STAT_ODPVALID 0x04
630 /* Volatile dequeue */
631 #define QBMAN_DQ_STAT_VOLATILE 0x02
632 /* volatile dequeue command is expired */
633 #define QBMAN_DQ_STAT_EXPIRED 0x01
635 #define QBMAN_EQCR_DCA_IDXMASK 0x0f
636 #define QBMAN_ENQUEUE_FLAG_DCA (1ULL << 31)
639 * qbman_result_DQ_flags() - Get the STAT field of dequeue response
640 * @dq: the dequeue result.
642 * Return the state field.
645 uint8_t qbman_result_DQ_flags(const struct qbman_result *dq);
648 * qbman_result_DQ_is_pull() - Check whether the dq response is from a pull
650 * @dq: the dequeue result.
652 * Return 1 for volatile(pull) dequeue, 0 for static dequeue.
654 static inline int qbman_result_DQ_is_pull(const struct qbman_result *dq)
656 return (int)(qbman_result_DQ_flags(dq) & QBMAN_DQ_STAT_VOLATILE);
660 * qbman_result_DQ_is_pull_complete() - Check whether the pull command is
662 * @dq: the dequeue result.
666 static inline int qbman_result_DQ_is_pull_complete(
667 const struct qbman_result *dq)
669 return (int)(qbman_result_DQ_flags(dq) & QBMAN_DQ_STAT_EXPIRED);
673 * qbman_result_DQ_seqnum() - Get the seqnum field in dequeue response
674 * seqnum is valid only if VALIDFRAME flag is TRUE
675 * @dq: the dequeue result.
680 uint16_t qbman_result_DQ_seqnum(const struct qbman_result *dq);
683 * qbman_result_DQ_odpid() - Get the seqnum field in dequeue response
684 * odpid is valid only if ODPVAILD flag is TRUE.
685 * @dq: the dequeue result.
690 uint16_t qbman_result_DQ_odpid(const struct qbman_result *dq);
693 * qbman_result_DQ_fqid() - Get the fqid in dequeue response
694 * @dq: the dequeue result.
698 uint32_t qbman_result_DQ_fqid(const struct qbman_result *dq);
701 * qbman_result_DQ_byte_count() - Get the byte count in dequeue response
702 * @dq: the dequeue result.
704 * Return the byte count remaining in the FQ.
706 uint32_t qbman_result_DQ_byte_count(const struct qbman_result *dq);
709 * qbman_result_DQ_frame_count - Get the frame count in dequeue response
710 * @dq: the dequeue result.
712 * Return the frame count remaining in the FQ.
714 uint32_t qbman_result_DQ_frame_count(const struct qbman_result *dq);
717 * qbman_result_DQ_fqd_ctx() - Get the frame queue context in dequeue response
718 * @dq: the dequeue result.
720 * Return the frame queue context.
723 uint64_t qbman_result_DQ_fqd_ctx(const struct qbman_result *dq);
726 * qbman_result_DQ_fd() - Get the frame descriptor in dequeue response
727 * @dq: the dequeue result.
729 * Return the frame descriptor.
732 const struct qbman_fd *qbman_result_DQ_fd(const struct qbman_result *dq);
734 /* State-change notifications (FQDAN/CDAN/CSCN/...). */
737 * qbman_result_SCN_state() - Get the state field in State-change notification
738 * @scn: the state change notification.
740 * Return the state in the notifiation.
743 uint8_t qbman_result_SCN_state(const struct qbman_result *scn);
746 * qbman_result_SCN_rid() - Get the resource id from the notification
747 * @scn: the state change notification.
749 * Return the resource id.
751 uint32_t qbman_result_SCN_rid(const struct qbman_result *scn);
754 * qbman_result_SCN_ctx() - get the context from the notification
755 * @scn: the state change notification.
757 * Return the context.
759 uint64_t qbman_result_SCN_ctx(const struct qbman_result *scn);
761 /* Type-specific "resource IDs". Mainly for illustration purposes, though it
762 * also gives the appropriate type widths.
764 /* Get the FQID from the FQDAN */
765 #define qbman_result_FQDAN_fqid(dq) qbman_result_SCN_rid(dq)
766 /* Get the FQID from the FQRN */
767 #define qbman_result_FQRN_fqid(dq) qbman_result_SCN_rid(dq)
768 /* Get the FQID from the FQRNI */
769 #define qbman_result_FQRNI_fqid(dq) qbman_result_SCN_rid(dq)
770 /* Get the FQID from the FQPN */
771 #define qbman_result_FQPN_fqid(dq) qbman_result_SCN_rid(dq)
772 /* Get the channel ID from the CDAN */
773 #define qbman_result_CDAN_cid(dq) ((uint16_t)qbman_result_SCN_rid(dq))
774 /* Get the CGID from the CSCN */
775 #define qbman_result_CSCN_cgid(dq) ((uint16_t)qbman_result_SCN_rid(dq))
778 * qbman_result_bpscn_bpid() - Get the bpid from BPSCN
779 * @scn: the state change notification.
781 * Return the buffer pool id.
783 uint16_t qbman_result_bpscn_bpid(const struct qbman_result *scn);
786 * qbman_result_bpscn_has_free_bufs() - Check whether there are free
787 * buffers in the pool from BPSCN.
788 * @scn: the state change notification.
790 * Return the number of free buffers.
792 int qbman_result_bpscn_has_free_bufs(const struct qbman_result *scn);
795 * qbman_result_bpscn_is_depleted() - Check BPSCN to see whether the
796 * buffer pool is depleted.
797 * @scn: the state change notification.
799 * Return the status of buffer pool depletion.
801 int qbman_result_bpscn_is_depleted(const struct qbman_result *scn);
804 * qbman_result_bpscn_is_surplus() - Check BPSCN to see whether the buffer
805 * pool is surplus or not.
806 * @scn: the state change notification.
808 * Return the status of buffer pool surplus.
810 int qbman_result_bpscn_is_surplus(const struct qbman_result *scn);
813 * qbman_result_bpscn_ctx() - Get the BPSCN CTX from BPSCN message
814 * @scn: the state change notification.
816 * Return the BPSCN context.
818 uint64_t qbman_result_bpscn_ctx(const struct qbman_result *scn);
822 * qbman_result_cgcu_cgid() - Check CGCU resouce id, i.e. cgid
823 * @scn: the state change notification.
825 * Return the CGCU resource id.
827 uint16_t qbman_result_cgcu_cgid(const struct qbman_result *scn);
830 * qbman_result_cgcu_icnt() - Get the I_CNT from CGCU
831 * @scn: the state change notification.
833 * Return instantaneous count in the CGCU notification.
835 uint64_t qbman_result_cgcu_icnt(const struct qbman_result *scn);
840 /* struct qbman_eq_desc - structure of enqueue descriptor */
841 struct qbman_eq_desc {
843 uint32_t dont_manipulate_directly[8];
863 * struct qbman_eq_response - structure of enqueue response
864 * @dont_manipulate_directly: the 16 32bit data to represent the whole
867 struct qbman_eq_response {
868 uint32_t dont_manipulate_directly[16];
872 * qbman_eq_desc_clear() - Clear the contents of a descriptor to
873 * default/starting state.
874 * @d: the given enqueue descriptor.
877 void qbman_eq_desc_clear(struct qbman_eq_desc *d);
879 /* Exactly one of the following descriptor "actions" should be set. (Calling
880 * any one of these will replace the effect of any prior call to one of these.)
881 * - enqueue without order-restoration
882 * - enqueue with order-restoration
883 * - fill a hole in the order-restoration sequence, without any enqueue
884 * - advance NESN (Next Expected Sequence Number), without any enqueue
885 * 'respond_success' indicates whether an enqueue response should be DMA'd
886 * after success (otherwise a response is DMA'd only after failure).
887 * 'incomplete' indicates that other fragments of the same 'seqnum' are yet to
892 * qbman_eq_desc_set_no_orp() - Set enqueue descriptor without orp
893 * @d: the enqueue descriptor.
894 * @response_success: 1 = enqueue with response always; 0 = enqueue with
895 * rejections returned on a FQ.
898 void qbman_eq_desc_set_no_orp(struct qbman_eq_desc *d, int respond_success);
900 * qbman_eq_desc_set_orp() - Set order-resotration in the enqueue descriptor
901 * @d: the enqueue descriptor.
902 * @response_success: 1 = enqueue with response always; 0 = enqueue with
903 * rejections returned on a FQ.
904 * @opr_id: the order point record id.
905 * @seqnum: the order restoration sequence number.
906 * @incomplete: indiates whether this is the last fragments using the same
910 void qbman_eq_desc_set_orp(struct qbman_eq_desc *d, int respond_success,
911 uint16_t opr_id, uint16_t seqnum, int incomplete);
914 * qbman_eq_desc_set_orp_hole() - fill a hole in the order-restoration sequence
915 * without any enqueue
916 * @d: the enqueue descriptor.
917 * @opr_id: the order point record id.
918 * @seqnum: the order restoration sequence number.
920 void qbman_eq_desc_set_orp_hole(struct qbman_eq_desc *d, uint16_t opr_id,
924 * qbman_eq_desc_set_orp_nesn() - advance NESN (Next Expected Sequence Number)
925 * without any enqueue
926 * @d: the enqueue descriptor.
927 * @opr_id: the order point record id.
928 * @seqnum: the order restoration sequence number.
930 void qbman_eq_desc_set_orp_nesn(struct qbman_eq_desc *d, uint16_t opr_id,
933 * qbman_eq_desc_set_response() - Set the enqueue response info.
934 * @d: the enqueue descriptor
935 * @storage_phys: the physical address of the enqueue response in memory.
936 * @stash: indicate that the write allocation enabled or not.
938 * In the case where an enqueue response is DMA'd, this determines where that
939 * response should go. (The physical/DMA address is given for hardware's
940 * benefit, but software should interpret it as a "struct qbman_eq_response"
941 * data structure.) 'stash' controls whether or not the write to main-memory
942 * expresses a cache-warming attribute.
945 void qbman_eq_desc_set_response(struct qbman_eq_desc *d,
946 uint64_t storage_phys,
950 * qbman_eq_desc_set_token() - Set token for the enqueue command
951 * @d: the enqueue descriptor
952 * @token: the token to be set.
954 * token is the value that shows up in an enqueue response that can be used to
955 * detect when the results have been published. The easiest technique is to zero
956 * result "storage" before issuing an enqueue, and use any non-zero 'token'
960 void qbman_eq_desc_set_token(struct qbman_eq_desc *d, uint8_t token);
963 * Exactly one of the following descriptor "targets" should be set. (Calling any
964 * one of these will replace the effect of any prior call to one of these.)
965 * - enqueue to a frame queue
966 * - enqueue to a queuing destination
967 * Note, that none of these will have any affect if the "action" type has been
968 * set to "orp_hole" or "orp_nesn".
971 * qbman_eq_desc_set_fq() - Set Frame Queue id for the enqueue command
972 * @d: the enqueue descriptor
973 * @fqid: the id of the frame queue to be enqueued.
976 void qbman_eq_desc_set_fq(struct qbman_eq_desc *d, uint32_t fqid);
979 * qbman_eq_desc_set_qd() - Set Queuing Destination for the enqueue command.
980 * @d: the enqueue descriptor
981 * @qdid: the id of the queuing destination to be enqueued.
982 * @qd_bin: the queuing destination bin
983 * @qd_prio: the queuing destination priority.
986 void qbman_eq_desc_set_qd(struct qbman_eq_desc *d, uint32_t qdid,
987 uint16_t qd_bin, uint8_t qd_prio);
990 * qbman_eq_desc_set_eqdi() - enable/disable EQDI interrupt
991 * @d: the enqueue descriptor
992 * @enable: boolean to enable/disable EQDI
994 * Determines whether or not the portal's EQDI interrupt source should be
995 * asserted after the enqueue command is completed.
997 void qbman_eq_desc_set_eqdi(struct qbman_eq_desc *d, int enable);
1000 * qbman_eq_desc_set_dca() - Set DCA mode in the enqueue command.
1001 * @d: the enqueue descriptor.
1002 * @enable: enabled/disable DCA mode.
1003 * @dqrr_idx: DCAP_CI, the DCAP consumer index.
1004 * @park: determine the whether park the FQ or not
1006 * Determines whether or not a portal DQRR entry should be consumed once the
1007 * enqueue command is completed. (And if so, and the DQRR entry corresponds to a
1008 * held-active (order-preserving) FQ, whether the FQ should be parked instead of
1009 * being rescheduled.)
1012 void qbman_eq_desc_set_dca(struct qbman_eq_desc *d, int enable,
1013 uint8_t dqrr_idx, int park);
1016 * qbman_result_eqresp_fd() - Get fd from enqueue response.
1017 * @eqresp: enqueue response.
1019 * Return the fd pointer.
1022 struct qbman_fd *qbman_result_eqresp_fd(struct qbman_result *eqresp);
1025 * qbman_result_eqresp_set_rspid() - Set the response id in enqueue response.
1026 * @eqresp: enqueue response.
1027 * @val: values to set into the response id.
1029 * This value is set into the response id before the enqueue command, which,
1030 * get overwritten by qbman once the enqueue command is complete.
1033 void qbman_result_eqresp_set_rspid(struct qbman_result *eqresp, uint8_t val);
1036 * qbman_result_eqresp_rspid() - Get the response id.
1037 * @eqresp: enqueue response.
1039 * Return the response id.
1041 * At the time of enqueue user provides the response id. Response id gets
1042 * copied into the enqueue response to determine if the command has been
1043 * completed, and response has been updated.
1046 uint8_t qbman_result_eqresp_rspid(struct qbman_result *eqresp);
1049 * qbman_result_eqresp_rc() - determines if enqueue command is sucessful.
1050 * @eqresp: enqueue response.
1052 * Return 0 when command is sucessful.
1055 uint8_t qbman_result_eqresp_rc(struct qbman_result *eqresp);
1058 * qbman_swp_enqueue() - Issue an enqueue command.
1059 * @s: the software portal used for enqueue.
1060 * @d: the enqueue descriptor.
1061 * @fd: the frame descriptor to be enqueued.
1063 * Please note that 'fd' should only be NULL if the "action" of the
1064 * descriptor is "orp_hole" or "orp_nesn".
1066 * Return 0 for a successful enqueue, -EBUSY if the EQCR is not ready.
1068 int qbman_swp_enqueue(struct qbman_swp *s, const struct qbman_eq_desc *d,
1069 const struct qbman_fd *fd);
1071 * qbman_swp_enqueue_multiple() - Enqueue multiple frames with same
1073 * @s: the software portal used for enqueue.
1074 * @d: the enqueue descriptor.
1075 * @fd: the frame descriptor to be enqueued.
1076 * @flags: bit-mask of QBMAN_ENQUEUE_FLAG_*** options
1077 * @num_frames: the number of the frames to be enqueued.
1079 * Return the number of enqueued frames, -EBUSY if the EQCR is not ready.
1082 int qbman_swp_enqueue_multiple(struct qbman_swp *s,
1083 const struct qbman_eq_desc *d,
1084 const struct qbman_fd *fd,
1089 * qbman_swp_enqueue_multiple_fd() - Enqueue multiple frames with same
1091 * @s: the software portal used for enqueue.
1092 * @d: the enqueue descriptor.
1093 * @fd: the frame descriptor to be enqueued.
1094 * @flags: bit-mask of QBMAN_ENQUEUE_FLAG_*** options
1095 * @num_frames: the number of the frames to be enqueued.
1097 * Return the number of enqueued frames, -EBUSY if the EQCR is not ready.
1100 int qbman_swp_enqueue_multiple_fd(struct qbman_swp *s,
1101 const struct qbman_eq_desc *d,
1102 struct qbman_fd **fd,
1107 * qbman_swp_enqueue_multiple_desc() - Enqueue multiple frames with
1108 * individual eq descriptor.
1109 * @s: the software portal used for enqueue.
1110 * @d: the enqueue descriptor.
1111 * @fd: the frame descriptor to be enqueued.
1112 * @num_frames: the number of the frames to be enqueued.
1114 * Return the number of enqueued frames, -EBUSY if the EQCR is not ready.
1117 int qbman_swp_enqueue_multiple_desc(struct qbman_swp *s,
1118 const struct qbman_eq_desc *d,
1119 const struct qbman_fd *fd,
1123 * qbman_swp_enqueue_thresh() - Set threshold for EQRI interrupt.
1124 * @s: the software portal.
1125 * @thresh: the threshold to trigger the EQRI interrupt.
1127 * An EQRI interrupt can be generated when the fill-level of EQCR falls below
1128 * the 'thresh' value set here. Setting thresh==0 (the default) disables.
1130 int qbman_swp_enqueue_thresh(struct qbman_swp *s, unsigned int thresh);
1132 /*******************/
1133 /* Buffer releases */
1134 /*******************/
1136 * struct qbman_release_desc - The structure for buffer release descriptor
1137 * @dont_manipulate_directly: the 32bit data to represent the whole
1138 * possible settings of qbman release descriptor.
1140 struct qbman_release_desc {
1142 uint32_t dont_manipulate_directly[16];
1154 * qbman_release_desc_clear() - Clear the contents of a descriptor to
1155 * default/starting state.
1156 * @d: the qbman release descriptor.
1159 void qbman_release_desc_clear(struct qbman_release_desc *d);
1162 * qbman_release_desc_set_bpid() - Set the ID of the buffer pool to release to
1163 * @d: the qbman release descriptor.
1166 void qbman_release_desc_set_bpid(struct qbman_release_desc *d, uint16_t bpid);
1169 * qbman_release_desc_set_rcdi() - Determines whether or not the portal's RCDI
1170 * interrupt source should be asserted after the release command is completed.
1171 * @d: the qbman release descriptor.
1173 void qbman_release_desc_set_rcdi(struct qbman_release_desc *d, int enable);
1176 * qbman_swp_release() - Issue a buffer release command.
1177 * @s: the software portal object.
1178 * @d: the release descriptor.
1179 * @buffers: a pointer pointing to the buffer address to be released.
1180 * @num_buffers: number of buffers to be released, must be less than 8.
1182 * Return 0 for success, -EBUSY if the release command ring is not ready.
1185 int qbman_swp_release(struct qbman_swp *s, const struct qbman_release_desc *d,
1186 const uint64_t *buffers, unsigned int num_buffers);
1189 * qbman_swp_release_thresh() - Set threshold for RCRI interrupt
1190 * @s: the software portal.
1191 * @thresh: the threshold.
1192 * An RCRI interrupt can be generated when the fill-level of RCR falls below
1193 * the 'thresh' value set here. Setting thresh==0 (the default) disables.
1195 int qbman_swp_release_thresh(struct qbman_swp *s, unsigned int thresh);
1197 /*******************/
1198 /* Buffer acquires */
1199 /*******************/
1201 * qbman_swp_acquire() - Issue a buffer acquire command.
1202 * @s: the software portal object.
1203 * @bpid: the buffer pool index.
1204 * @buffers: a pointer pointing to the acquired buffer address|es.
1205 * @num_buffers: number of buffers to be acquired, must be less than 8.
1207 * Return 0 for success, or negative error code if the acquire command
1211 int qbman_swp_acquire(struct qbman_swp *s, uint16_t bpid, uint64_t *buffers,
1212 unsigned int num_buffers);
1218 * qbman_swp_fq_schedule() - Move the fq to the scheduled state.
1219 * @s: the software portal object.
1220 * @fqid: the index of frame queue to be scheduled.
1222 * There are a couple of different ways that a FQ can end up parked state,
1223 * This schedules it.
1225 * Return 0 for success, or negative error code for failure.
1227 int qbman_swp_fq_schedule(struct qbman_swp *s, uint32_t fqid);
1230 * qbman_swp_fq_force() - Force the FQ to fully scheduled state.
1231 * @s: the software portal object.
1232 * @fqid: the index of frame queue to be forced.
1234 * Force eligible will force a tentatively-scheduled FQ to be fully-scheduled
1235 * and thus be available for selection by any channel-dequeuing behaviour (push
1236 * or pull). If the FQ is subsequently "dequeued" from the channel and is still
1237 * empty at the time this happens, the resulting dq_entry will have no FD.
1238 * (qbman_result_DQ_fd() will return NULL.)
1240 * Return 0 for success, or negative error code for failure.
1242 int qbman_swp_fq_force(struct qbman_swp *s, uint32_t fqid);
1245 * These functions change the FQ flow-control stuff between XON/XOFF. (The
1246 * default is XON.) This setting doesn't affect enqueues to the FQ, just
1247 * dequeues. XOFF FQs will remain in the tenatively-scheduled state, even when
1248 * non-empty, meaning they won't be selected for scheduled dequeuing. If a FQ is
1249 * changed to XOFF after it had already become truly-scheduled to a channel, and
1250 * a pull dequeue of that channel occurs that selects that FQ for dequeuing,
1251 * then the resulting dq_entry will have no FD. (qbman_result_DQ_fd() will
1255 * qbman_swp_fq_xon() - XON the frame queue.
1256 * @s: the software portal object.
1257 * @fqid: the index of frame queue.
1259 * Return 0 for success, or negative error code for failure.
1261 int qbman_swp_fq_xon(struct qbman_swp *s, uint32_t fqid);
1263 * qbman_swp_fq_xoff() - XOFF the frame queue.
1264 * @s: the software portal object.
1265 * @fqid: the index of frame queue.
1267 * Return 0 for success, or negative error code for failure.
1269 int qbman_swp_fq_xoff(struct qbman_swp *s, uint32_t fqid);
1271 /**********************/
1272 /* Channel management */
1273 /**********************/
1276 * If the user has been allocated a channel object that is going to generate
1277 * CDANs to another channel, then these functions will be necessary.
1278 * CDAN-enabled channels only generate a single CDAN notification, after which
1279 * it they need to be reenabled before they'll generate another. (The idea is
1280 * that pull dequeuing will occur in reaction to the CDAN, followed by a
1281 * reenable step.) Each function generates a distinct command to hardware, so a
1282 * combination function is provided if the user wishes to modify the "context"
1283 * (which shows up in each CDAN message) each time they reenable, as a single
1284 * command to hardware.
1288 * qbman_swp_CDAN_set_context() - Set CDAN context
1289 * @s: the software portal object.
1290 * @channelid: the channel index.
1291 * @ctx: the context to be set in CDAN.
1293 * Return 0 for success, or negative error code for failure.
1295 int qbman_swp_CDAN_set_context(struct qbman_swp *s, uint16_t channelid,
1299 * qbman_swp_CDAN_enable() - Enable CDAN for the channel.
1300 * @s: the software portal object.
1301 * @channelid: the index of the channel to generate CDAN.
1303 * Return 0 for success, or negative error code for failure.
1305 int qbman_swp_CDAN_enable(struct qbman_swp *s, uint16_t channelid);
1308 * qbman_swp_CDAN_disable() - disable CDAN for the channel.
1309 * @s: the software portal object.
1310 * @channelid: the index of the channel to generate CDAN.
1312 * Return 0 for success, or negative error code for failure.
1314 int qbman_swp_CDAN_disable(struct qbman_swp *s, uint16_t channelid);
1317 * qbman_swp_CDAN_set_context_enable() - Set CDAN contest and enable CDAN
1318 * @s: the software portal object.
1319 * @channelid: the index of the channel to generate CDAN.
1320 * @ctx: the context set in CDAN.
1322 * Return 0 for success, or negative error code for failure.
1324 int qbman_swp_CDAN_set_context_enable(struct qbman_swp *s, uint16_t channelid,
1326 #endif /* !_FSL_QBMAN_PORTAL_H */