1 /* SPDX-License-Identifier: (BSD-3-Clause OR GPL-2.0)
3 * Copyright 2008-2016 Freescale Semiconductor Inc.
9 #include <rte_branch_prediction.h>
10 #include <rte_dpaa_bus.h>
11 #include <rte_eventdev.h>
12 #include <rte_byteorder.h>
14 /* Compilation constants */
15 #define DQRR_MAXFILL 15
16 #define EQCR_ITHRESH 4 /* if EQCR congests, interrupt threshold */
17 #define IRQNAME "QMan portal %d"
18 #define MAX_IRQNAME 16 /* big enough for "QMan portal %d" */
19 /* maximum number of DQRR entries to process in qman_poll() */
20 #define FSL_QMAN_POLL_LIMIT 8
22 /* Lock/unlock frame queues, subject to the "LOCKED" flag. This is about
23 * inter-processor locking only. Note, FQLOCK() is always called either under a
24 * local_irq_save() or from interrupt context - hence there's no need for irq
25 * protection (and indeed, attempting to nest irq-protection doesn't work, as
26 * the "irq en/disable" machinery isn't recursive...).
30 struct qman_fq *__fq478 = (fq); \
31 if (fq_isset(__fq478, QMAN_FQ_FLAG_LOCKED)) \
32 spin_lock(&__fq478->fqlock); \
34 #define FQUNLOCK(fq) \
36 struct qman_fq *__fq478 = (fq); \
37 if (fq_isset(__fq478, QMAN_FQ_FLAG_LOCKED)) \
38 spin_unlock(&__fq478->fqlock); \
41 static inline void fq_set(struct qman_fq *fq, u32 mask)
43 dpaa_set_bits(mask, &fq->flags);
46 static inline void fq_clear(struct qman_fq *fq, u32 mask)
48 dpaa_clear_bits(mask, &fq->flags);
51 static inline int fq_isset(struct qman_fq *fq, u32 mask)
53 return fq->flags & mask;
56 static inline int fq_isclear(struct qman_fq *fq, u32 mask)
58 return !(fq->flags & mask);
63 /* PORTAL_BITS_*** - dynamic, strictly internal */
65 /* interrupt sources processed by portal_isr(), configurable */
66 unsigned long irq_sources;
67 u32 use_eqcr_ci_stashing;
68 u32 slowpoll; /* only used when interrupts are off */
69 /* only 1 volatile dequeue at a time */
70 struct qman_fq *vdqcr_owned;
73 /* A portal-specific handler for DCP ERNs. If this is NULL, the global
74 * handler is called instead.
76 qman_cb_dc_ern cb_dc_ern;
77 /* When the cpu-affine portal is activated, this is non-NULL */
78 const struct qm_portal_config *config;
79 struct dpa_rbtree retire_table;
80 char irqname[MAX_IRQNAME];
81 /* 2-element array. cgrs[0] is mask, cgrs[1] is snapshot. */
82 struct qman_cgrs *cgrs;
83 /* linked-list of CSCN handlers. */
84 struct list_head cgr_cbs;
87 /* track if memory was allocated by the driver */
88 #if __BYTE_ORDER__ == __ORDER_LITTLE_ENDIAN__
89 /* Keep a shadow copy of the DQRR on LE systems as the SW needs to
90 * do byte swaps of DQRR read only memory. First entry must be aligned
91 * to 2 ** 10 to ensure DQRR index calculations based shadow copy
92 * address (6 bits for address shift + 4 bits for the DQRR size).
94 struct qm_dqrr_entry shadow_dqrr[QM_DQRR_SIZE]
95 __attribute__((aligned(1024)));
99 /* Global handler for DCP ERNs. Used when the portal receiving the message does
100 * not have a portal-specific handler.
102 static qman_cb_dc_ern cb_dc_ern;
104 static cpumask_t affine_mask;
105 static DEFINE_SPINLOCK(affine_mask_lock);
106 static u16 affine_channels[NR_CPUS];
107 static RTE_DEFINE_PER_LCORE(struct qman_portal, qman_affine_portal);
109 static inline struct qman_portal *get_affine_portal(void)
111 return &RTE_PER_LCORE(qman_affine_portal);
114 /* This gives a FQID->FQ lookup to cover the fact that we can't directly demux
115 * retirement notifications (the fact they are sometimes h/w-consumed means that
116 * contextB isn't always a s/w demux - and as we can't know which case it is
117 * when looking at the notification, we have to use the slow lookup for all of
118 * them). NB, it's possible to have multiple FQ objects refer to the same FQID
119 * (though at most one of them should be the consumer), so this table isn't for
120 * all FQs - FQs are added when retirement commands are issued, and removed when
121 * they complete, which also massively reduces the size of this table.
123 IMPLEMENT_DPAA_RBTREE(fqtree, struct qman_fq, node, fqid);
125 * This is what everything can wait on, even if it migrates to a different cpu
126 * to the one whose affine portal it is waiting on.
128 static DECLARE_WAIT_QUEUE_HEAD(affine_queue);
130 static inline int table_push_fq(struct qman_portal *p, struct qman_fq *fq)
132 int ret = fqtree_push(&p->retire_table, fq);
135 pr_err("ERROR: double FQ-retirement %d\n", fq->fqid);
139 static inline void table_del_fq(struct qman_portal *p, struct qman_fq *fq)
141 fqtree_del(&p->retire_table, fq);
144 static inline struct qman_fq *table_find_fq(struct qman_portal *p, u32 fqid)
146 return fqtree_find(&p->retire_table, fqid);
149 #ifdef CONFIG_FSL_QMAN_FQ_LOOKUP
150 static void **qman_fq_lookup_table;
151 static size_t qman_fq_lookup_table_size;
153 int qman_setup_fq_lookup_table(size_t num_entries)
156 /* Allocate 1 more entry since the first entry is not used */
157 qman_fq_lookup_table = vmalloc((num_entries * sizeof(void *)));
158 if (!qman_fq_lookup_table) {
159 pr_err("QMan: Could not allocate fq lookup table\n");
162 memset(qman_fq_lookup_table, 0, num_entries * sizeof(void *));
163 qman_fq_lookup_table_size = num_entries;
164 pr_debug("QMan: Allocated lookup table at %p, entry count %lu\n",
165 qman_fq_lookup_table,
166 (unsigned long)qman_fq_lookup_table_size);
170 /* global structure that maintains fq object mapping */
171 static DEFINE_SPINLOCK(fq_hash_table_lock);
173 static int find_empty_fq_table_entry(u32 *entry, struct qman_fq *fq)
177 spin_lock(&fq_hash_table_lock);
178 /* Can't use index zero because this has special meaning
179 * in context_b field.
181 for (i = 1; i < qman_fq_lookup_table_size; i++) {
182 if (qman_fq_lookup_table[i] == NULL) {
184 qman_fq_lookup_table[i] = fq;
185 spin_unlock(&fq_hash_table_lock);
189 spin_unlock(&fq_hash_table_lock);
193 static void clear_fq_table_entry(u32 entry)
195 spin_lock(&fq_hash_table_lock);
196 DPAA_BUG_ON(entry >= qman_fq_lookup_table_size);
197 qman_fq_lookup_table[entry] = NULL;
198 spin_unlock(&fq_hash_table_lock);
201 static inline struct qman_fq *get_fq_table_entry(u32 entry)
203 DPAA_BUG_ON(entry >= qman_fq_lookup_table_size);
204 return qman_fq_lookup_table[entry];
208 static inline void cpu_to_hw_fqd(struct qm_fqd *fqd)
210 /* Byteswap the FQD to HW format */
211 fqd->fq_ctrl = cpu_to_be16(fqd->fq_ctrl);
212 fqd->dest_wq = cpu_to_be16(fqd->dest_wq);
213 fqd->ics_cred = cpu_to_be16(fqd->ics_cred);
214 fqd->context_b = cpu_to_be32(fqd->context_b);
215 fqd->context_a.opaque = cpu_to_be64(fqd->context_a.opaque);
216 fqd->opaque_td = cpu_to_be16(fqd->opaque_td);
219 static inline void hw_fqd_to_cpu(struct qm_fqd *fqd)
221 /* Byteswap the FQD to CPU format */
222 fqd->fq_ctrl = be16_to_cpu(fqd->fq_ctrl);
223 fqd->dest_wq = be16_to_cpu(fqd->dest_wq);
224 fqd->ics_cred = be16_to_cpu(fqd->ics_cred);
225 fqd->context_b = be32_to_cpu(fqd->context_b);
226 fqd->context_a.opaque = be64_to_cpu(fqd->context_a.opaque);
229 static inline void cpu_to_hw_fd(struct qm_fd *fd)
231 fd->addr = cpu_to_be40(fd->addr);
232 fd->status = cpu_to_be32(fd->status);
233 fd->opaque = cpu_to_be32(fd->opaque);
236 static inline void hw_fd_to_cpu(struct qm_fd *fd)
238 fd->addr = be40_to_cpu(fd->addr);
239 fd->status = be32_to_cpu(fd->status);
240 fd->opaque = be32_to_cpu(fd->opaque);
243 /* In the case that slow- and fast-path handling are both done by qman_poll()
244 * (ie. because there is no interrupt handling), we ought to balance how often
245 * we do the fast-path poll versus the slow-path poll. We'll use two decrementer
246 * sources, so we call the fast poll 'n' times before calling the slow poll
247 * once. The idle decrementer constant is used when the last slow-poll detected
248 * no work to do, and the busy decrementer constant when the last slow-poll had
251 #define SLOW_POLL_IDLE 1000
252 #define SLOW_POLL_BUSY 10
253 static u32 __poll_portal_slow(struct qman_portal *p, u32 is);
254 static inline unsigned int __poll_portal_fast(struct qman_portal *p,
255 unsigned int poll_limit);
257 /* Portal interrupt handler */
258 static irqreturn_t portal_isr(__always_unused int irq, void *ptr)
260 struct qman_portal *p = ptr;
262 * The CSCI/CCSCI source is cleared inside __poll_portal_slow(), because
263 * it could race against a Query Congestion State command also given
264 * as part of the handling of this interrupt source. We mustn't
265 * clear it a second time in this top-level function.
267 u32 clear = QM_DQAVAIL_MASK | (p->irq_sources &
268 ~(QM_PIRQ_CSCI | QM_PIRQ_CCSCI));
269 u32 is = qm_isr_status_read(&p->p) & p->irq_sources;
270 /* DQRR-handling if it's interrupt-driven */
271 if (is & QM_PIRQ_DQRI)
272 __poll_portal_fast(p, FSL_QMAN_POLL_LIMIT);
273 /* Handling of anything else that's interrupt-driven */
274 clear |= __poll_portal_slow(p, is);
275 qm_isr_status_clear(&p->p, clear);
279 /* This inner version is used privately by qman_create_affine_portal(), as well
280 * as by the exported qman_stop_dequeues().
282 static inline void qman_stop_dequeues_ex(struct qman_portal *p)
284 if (!(p->dqrr_disable_ref++))
285 qm_dqrr_set_maxfill(&p->p, 0);
288 static int drain_mr_fqrni(struct qm_portal *p)
290 const struct qm_mr_entry *msg;
292 msg = qm_mr_current(p);
295 * if MR was full and h/w had other FQRNI entries to produce, we
296 * need to allow it time to produce those entries once the
297 * existing entries are consumed. A worst-case situation
298 * (fully-loaded system) means h/w sequencers may have to do 3-4
299 * other things before servicing the portal's MR pump, each of
300 * which (if slow) may take ~50 qman cycles (which is ~200
301 * processor cycles). So rounding up and then multiplying this
302 * worst-case estimate by a factor of 10, just to be
303 * ultra-paranoid, goes as high as 10,000 cycles. NB, we consume
304 * one entry at a time, so h/w has an opportunity to produce new
305 * entries well before the ring has been fully consumed, so
306 * we're being *really* paranoid here.
308 u64 now, then = mfatb();
312 } while ((then + 10000) > now);
313 msg = qm_mr_current(p);
317 if ((msg->verb & QM_MR_VERB_TYPE_MASK) != QM_MR_VERB_FQRNI) {
318 /* We aren't draining anything but FQRNIs */
319 pr_err("Found verb 0x%x in MR\n", msg->verb);
323 qm_mr_cci_consume(p, 1);
327 static inline int qm_eqcr_init(struct qm_portal *portal,
328 enum qm_eqcr_pmode pmode,
329 unsigned int eq_stash_thresh,
332 /* This use of 'register', as well as all other occurrences, is because
333 * it has been observed to generate much faster code with gcc than is
334 * otherwise the case.
336 register struct qm_eqcr *eqcr = &portal->eqcr;
340 eqcr->ring = portal->addr.ce + QM_CL_EQCR;
341 eqcr->ci = qm_in(EQCR_CI_CINH) & (QM_EQCR_SIZE - 1);
342 qm_cl_invalidate(EQCR_CI);
343 pi = qm_in(EQCR_PI_CINH) & (QM_EQCR_SIZE - 1);
344 eqcr->cursor = eqcr->ring + pi;
345 eqcr->vbit = (qm_in(EQCR_PI_CINH) & QM_EQCR_SIZE) ?
346 QM_EQCR_VERB_VBIT : 0;
347 eqcr->available = QM_EQCR_SIZE - 1 -
348 qm_cyc_diff(QM_EQCR_SIZE, eqcr->ci, pi);
349 eqcr->ithresh = qm_in(EQCR_ITR);
350 #ifdef RTE_LIBRTE_DPAA_HWDEBUG
354 cfg = (qm_in(CFG) & 0x00ffffff) |
355 (eq_stash_thresh << 28) | /* QCSP_CFG: EST */
356 (eq_stash_prio << 26) | /* QCSP_CFG: EP */
357 ((pmode & 0x3) << 24); /* QCSP_CFG::EPM */
362 static inline void qm_eqcr_finish(struct qm_portal *portal)
364 register struct qm_eqcr *eqcr = &portal->eqcr;
369 * Disable EQCI stashing because the QMan only
370 * presents the value it previously stashed to
371 * maintain coherency. Setting the stash threshold
372 * to 1 then 0 ensures that QMan has resyncronized
373 * its internal copy so that the portal is clean
374 * when it is reinitialized in the future
376 cfg = (qm_in(CFG) & 0x0fffffff) |
377 (1 << 28); /* QCSP_CFG: EST */
379 cfg &= 0x0fffffff; /* stash threshold = 0 */
382 pi = qm_in(EQCR_PI_CINH) & (QM_EQCR_SIZE - 1);
383 ci = qm_in(EQCR_CI_CINH) & (QM_EQCR_SIZE - 1);
385 /* Refresh EQCR CI cache value */
386 qm_cl_invalidate(EQCR_CI);
387 eqcr->ci = qm_cl_in(EQCR_CI) & (QM_EQCR_SIZE - 1);
389 #ifdef RTE_LIBRTE_DPAA_HWDEBUG
390 DPAA_ASSERT(!eqcr->busy);
392 if (pi != EQCR_PTR2IDX(eqcr->cursor))
393 pr_crit("losing uncommitted EQCR entries\n");
395 pr_crit("missing existing EQCR completions\n");
396 if (eqcr->ci != EQCR_PTR2IDX(eqcr->cursor))
397 pr_crit("EQCR destroyed unquiesced\n");
400 static inline int qm_dqrr_init(struct qm_portal *portal,
401 __maybe_unused const struct qm_portal_config *config,
402 enum qm_dqrr_dmode dmode,
403 __maybe_unused enum qm_dqrr_pmode pmode,
404 enum qm_dqrr_cmode cmode, u8 max_fill)
406 register struct qm_dqrr *dqrr = &portal->dqrr;
409 /* Make sure the DQRR will be idle when we enable */
410 qm_out(DQRR_SDQCR, 0);
411 qm_out(DQRR_VDQCR, 0);
412 qm_out(DQRR_PDQCR, 0);
413 dqrr->ring = portal->addr.ce + QM_CL_DQRR;
414 dqrr->pi = qm_in(DQRR_PI_CINH) & (QM_DQRR_SIZE - 1);
415 dqrr->ci = qm_in(DQRR_CI_CINH) & (QM_DQRR_SIZE - 1);
416 dqrr->cursor = dqrr->ring + dqrr->ci;
417 dqrr->fill = qm_cyc_diff(QM_DQRR_SIZE, dqrr->ci, dqrr->pi);
418 dqrr->vbit = (qm_in(DQRR_PI_CINH) & QM_DQRR_SIZE) ?
419 QM_DQRR_VERB_VBIT : 0;
420 dqrr->ithresh = qm_in(DQRR_ITR);
421 #ifdef RTE_LIBRTE_DPAA_HWDEBUG
426 /* Invalidate every ring entry before beginning */
427 for (cfg = 0; cfg < QM_DQRR_SIZE; cfg++)
428 dccivac(qm_cl(dqrr->ring, cfg));
429 cfg = (qm_in(CFG) & 0xff000f00) |
430 ((max_fill & (QM_DQRR_SIZE - 1)) << 20) | /* DQRR_MF */
431 ((dmode & 1) << 18) | /* DP */
432 ((cmode & 3) << 16) | /* DCM */
434 (0 ? 0x40 : 0) | /* Ignore RP */
435 (0 ? 0x10 : 0); /* Ignore SP */
437 qm_dqrr_set_maxfill(portal, max_fill);
441 static inline void qm_dqrr_finish(struct qm_portal *portal)
443 __maybe_unused register struct qm_dqrr *dqrr = &portal->dqrr;
444 #ifdef RTE_LIBRTE_DPAA_HWDEBUG
445 if ((dqrr->cmode != qm_dqrr_cdc) &&
446 (dqrr->ci != DQRR_PTR2IDX(dqrr->cursor)))
447 pr_crit("Ignoring completed DQRR entries\n");
451 static inline int qm_mr_init(struct qm_portal *portal,
452 __maybe_unused enum qm_mr_pmode pmode,
453 enum qm_mr_cmode cmode)
455 register struct qm_mr *mr = &portal->mr;
458 mr->ring = portal->addr.ce + QM_CL_MR;
459 mr->pi = qm_in(MR_PI_CINH) & (QM_MR_SIZE - 1);
460 mr->ci = qm_in(MR_CI_CINH) & (QM_MR_SIZE - 1);
461 mr->cursor = mr->ring + mr->ci;
462 mr->fill = qm_cyc_diff(QM_MR_SIZE, mr->ci, mr->pi);
463 mr->vbit = (qm_in(MR_PI_CINH) & QM_MR_SIZE) ? QM_MR_VERB_VBIT : 0;
464 mr->ithresh = qm_in(MR_ITR);
465 #ifdef RTE_LIBRTE_DPAA_HWDEBUG
469 cfg = (qm_in(CFG) & 0xfffff0ff) |
470 ((cmode & 1) << 8); /* QCSP_CFG:MM */
475 static inline void qm_mr_pvb_update(struct qm_portal *portal)
477 register struct qm_mr *mr = &portal->mr;
478 const struct qm_mr_entry *res = qm_cl(mr->ring, mr->pi);
480 #ifdef RTE_LIBRTE_DPAA_HWDEBUG
481 DPAA_ASSERT(mr->pmode == qm_mr_pvb);
483 /* when accessing 'verb', use __raw_readb() to ensure that compiler
484 * inlining doesn't try to optimise out "excess reads".
486 if ((__raw_readb(&res->verb) & QM_MR_VERB_VBIT) == mr->vbit) {
487 mr->pi = (mr->pi + 1) & (QM_MR_SIZE - 1);
489 mr->vbit ^= QM_MR_VERB_VBIT;
497 struct qman_portal *qman_create_portal(
498 struct qman_portal *portal,
499 const struct qm_portal_config *c,
500 const struct qman_cgrs *cgrs)
509 if (dpaa_svr_family == SVR_LS1043A_FAMILY)
510 portal->use_eqcr_ci_stashing = 3;
512 portal->use_eqcr_ci_stashing =
513 ((qman_ip_rev >= QMAN_REV30) ? 1 : 0);
516 * prep the low-level portal struct with the mapped addresses from the
517 * config, everything that follows depends on it and "config" is more
520 p->addr.ce = c->addr_virt[DPAA_PORTAL_CE];
521 p->addr.ci = c->addr_virt[DPAA_PORTAL_CI];
523 * If CI-stashing is used, the current defaults use a threshold of 3,
524 * and stash with high-than-DQRR priority.
526 if (qm_eqcr_init(p, qm_eqcr_pvb,
527 portal->use_eqcr_ci_stashing, 1)) {
528 pr_err("Qman EQCR initialisation failed\n");
531 if (qm_dqrr_init(p, c, qm_dqrr_dpush, qm_dqrr_pvb,
532 qm_dqrr_cdc, DQRR_MAXFILL)) {
533 pr_err("Qman DQRR initialisation failed\n");
536 if (qm_mr_init(p, qm_mr_pvb, qm_mr_cci)) {
537 pr_err("Qman MR initialisation failed\n");
541 pr_err("Qman MC initialisation failed\n");
545 /* static interrupt-gating controls */
546 qm_dqrr_set_ithresh(p, 0);
547 qm_mr_set_ithresh(p, 0);
548 qm_isr_set_iperiod(p, 0);
549 portal->cgrs = kmalloc(2 * sizeof(*cgrs), GFP_KERNEL);
552 /* initial snapshot is no-depletion */
553 qman_cgrs_init(&portal->cgrs[1]);
555 portal->cgrs[0] = *cgrs;
557 /* if the given mask is NULL, assume all CGRs can be seen */
558 qman_cgrs_fill(&portal->cgrs[0]);
559 INIT_LIST_HEAD(&portal->cgr_cbs);
560 spin_lock_init(&portal->cgr_lock);
562 portal->slowpoll = 0;
563 portal->sdqcr = QM_SDQCR_SOURCE_CHANNELS | QM_SDQCR_COUNT_UPTO3 |
564 QM_SDQCR_DEDICATED_PRECEDENCE | QM_SDQCR_TYPE_PRIO_QOS |
565 QM_SDQCR_TOKEN_SET(0xab) | QM_SDQCR_CHANNELS_DEDICATED;
566 portal->dqrr_disable_ref = 0;
567 portal->cb_dc_ern = NULL;
568 sprintf(buf, "qportal-%d", c->channel);
569 dpa_rbtree_init(&portal->retire_table);
571 qm_isr_disable_write(p, isdr);
572 portal->irq_sources = 0;
573 qm_isr_enable_write(p, portal->irq_sources);
574 qm_isr_status_clear(p, 0xffffffff);
575 snprintf(portal->irqname, MAX_IRQNAME, IRQNAME, c->cpu);
576 if (request_irq(c->irq, portal_isr, 0, portal->irqname,
578 pr_err("request_irq() failed\n");
582 /* Need EQCR to be empty before continuing */
583 isdr &= ~QM_PIRQ_EQCI;
584 qm_isr_disable_write(p, isdr);
585 ret = qm_eqcr_get_fill(p);
587 pr_err("Qman EQCR unclean\n");
588 goto fail_eqcr_empty;
590 isdr &= ~(QM_PIRQ_DQRI | QM_PIRQ_MRI);
591 qm_isr_disable_write(p, isdr);
592 if (qm_dqrr_current(p)) {
593 pr_err("Qman DQRR unclean\n");
594 qm_dqrr_cdc_consume_n(p, 0xffff);
596 if (qm_mr_current(p) && drain_mr_fqrni(p)) {
597 /* special handling, drain just in case it's a few FQRNIs */
598 if (drain_mr_fqrni(p))
599 goto fail_dqrr_mr_empty;
603 qm_isr_disable_write(p, 0);
605 /* Write a sane SDQCR */
606 qm_dqrr_sdqcr_set(p, portal->sdqcr);
610 free_irq(c->irq, portal);
613 spin_lock_destroy(&portal->cgr_lock);
626 #define MAX_GLOBAL_PORTALS 8
627 static struct qman_portal global_portals[MAX_GLOBAL_PORTALS];
628 rte_atomic16_t global_portals_used[MAX_GLOBAL_PORTALS];
630 static struct qman_portal *
631 qman_alloc_global_portal(void)
635 for (i = 0; i < MAX_GLOBAL_PORTALS; i++) {
636 if (rte_atomic16_test_and_set(&global_portals_used[i]))
637 return &global_portals[i];
639 pr_err("No portal available (%x)\n", MAX_GLOBAL_PORTALS);
645 qman_free_global_portal(struct qman_portal *portal)
649 for (i = 0; i < MAX_GLOBAL_PORTALS; i++) {
650 if (&global_portals[i] == portal) {
651 rte_atomic16_clear(&global_portals_used[i]);
658 struct qman_portal *qman_create_affine_portal(const struct qm_portal_config *c,
659 const struct qman_cgrs *cgrs,
662 struct qman_portal *res;
663 struct qman_portal *portal;
666 portal = qman_alloc_global_portal();
668 portal = get_affine_portal();
670 /* A criteria for calling this function (from qman_driver.c) is that
671 * we're already affine to the cpu and won't schedule onto another cpu.
674 res = qman_create_portal(portal, c, cgrs);
676 spin_lock(&affine_mask_lock);
677 CPU_SET(c->cpu, &affine_mask);
678 affine_channels[c->cpu] =
680 spin_unlock(&affine_mask_lock);
686 void qman_destroy_portal(struct qman_portal *qm)
688 const struct qm_portal_config *pcfg;
690 /* Stop dequeues on the portal */
691 qm_dqrr_sdqcr_set(&qm->p, 0);
694 * NB we do this to "quiesce" EQCR. If we add enqueue-completions or
695 * something related to QM_PIRQ_EQCI, this may need fixing.
696 * Also, due to the prefetching model used for CI updates in the enqueue
697 * path, this update will only invalidate the CI cacheline *after*
698 * working on it, so we need to call this twice to ensure a full update
699 * irrespective of where the enqueue processing was at when the teardown
702 qm_eqcr_cce_update(&qm->p);
703 qm_eqcr_cce_update(&qm->p);
706 free_irq(pcfg->irq, qm);
709 qm_mc_finish(&qm->p);
710 qm_mr_finish(&qm->p);
711 qm_dqrr_finish(&qm->p);
712 qm_eqcr_finish(&qm->p);
716 spin_lock_destroy(&qm->cgr_lock);
719 const struct qm_portal_config *
720 qman_destroy_affine_portal(struct qman_portal *qp)
722 /* We don't want to redirect if we're a slave, use "raw" */
723 struct qman_portal *qm;
724 const struct qm_portal_config *pcfg;
728 qm = get_affine_portal();
734 qman_destroy_portal(qm);
736 spin_lock(&affine_mask_lock);
737 CPU_CLR(cpu, &affine_mask);
738 spin_unlock(&affine_mask_lock);
740 qman_free_global_portal(qm);
745 int qman_get_portal_index(void)
747 struct qman_portal *p = get_affine_portal();
748 return p->config->index;
751 /* Inline helper to reduce nesting in __poll_portal_slow() */
752 static inline void fq_state_change(struct qman_portal *p, struct qman_fq *fq,
753 const struct qm_mr_entry *msg, u8 verb)
757 case QM_MR_VERB_FQRL:
758 DPAA_ASSERT(fq_isset(fq, QMAN_FQ_STATE_ORL));
759 fq_clear(fq, QMAN_FQ_STATE_ORL);
762 case QM_MR_VERB_FQRN:
763 DPAA_ASSERT((fq->state == qman_fq_state_parked) ||
764 (fq->state == qman_fq_state_sched));
765 DPAA_ASSERT(fq_isset(fq, QMAN_FQ_STATE_CHANGING));
766 fq_clear(fq, QMAN_FQ_STATE_CHANGING);
767 if (msg->fq.fqs & QM_MR_FQS_NOTEMPTY)
768 fq_set(fq, QMAN_FQ_STATE_NE);
769 if (msg->fq.fqs & QM_MR_FQS_ORLPRESENT)
770 fq_set(fq, QMAN_FQ_STATE_ORL);
773 fq->state = qman_fq_state_retired;
775 case QM_MR_VERB_FQPN:
776 DPAA_ASSERT(fq->state == qman_fq_state_sched);
777 DPAA_ASSERT(fq_isclear(fq, QMAN_FQ_STATE_CHANGING));
778 fq->state = qman_fq_state_parked;
783 static u32 __poll_portal_slow(struct qman_portal *p, u32 is)
785 const struct qm_mr_entry *msg;
786 struct qm_mr_entry swapped_msg;
788 if (is & QM_PIRQ_CSCI) {
789 struct qman_cgrs rr, c;
790 struct qm_mc_result *mcr;
791 struct qman_cgr *cgr;
793 spin_lock(&p->cgr_lock);
795 * The CSCI bit must be cleared _before_ issuing the
796 * Query Congestion State command, to ensure that a long
797 * CGR State Change callback cannot miss an intervening
800 qm_isr_status_clear(&p->p, QM_PIRQ_CSCI);
802 qm_mc_commit(&p->p, QM_MCC_VERB_QUERYCONGESTION);
803 while (!(mcr = qm_mc_result(&p->p)))
805 /* mask out the ones I'm not interested in */
806 qman_cgrs_and(&rr, (const struct qman_cgrs *)
807 &mcr->querycongestion.state, &p->cgrs[0]);
808 /* check previous snapshot for delta, enter/exit congestion */
809 qman_cgrs_xor(&c, &rr, &p->cgrs[1]);
810 /* update snapshot */
811 qman_cgrs_cp(&p->cgrs[1], &rr);
812 /* Invoke callback */
813 list_for_each_entry(cgr, &p->cgr_cbs, node)
814 if (cgr->cb && qman_cgrs_get(&c, cgr->cgrid))
815 cgr->cb(p, cgr, qman_cgrs_get(&rr, cgr->cgrid));
816 spin_unlock(&p->cgr_lock);
819 if (is & QM_PIRQ_EQRI) {
820 qm_eqcr_cce_update(&p->p);
821 qm_eqcr_set_ithresh(&p->p, 0);
822 wake_up(&affine_queue);
825 if (is & QM_PIRQ_MRI) {
829 qm_mr_pvb_update(&p->p);
830 msg = qm_mr_current(&p->p);
834 hw_fd_to_cpu(&swapped_msg.ern.fd);
835 verb = msg->verb & QM_MR_VERB_TYPE_MASK;
836 /* The message is a software ERN iff the 0x20 bit is set */
839 case QM_MR_VERB_FQRNI:
840 /* nada, we drop FQRNIs on the floor */
842 case QM_MR_VERB_FQRN:
843 case QM_MR_VERB_FQRL:
844 /* Lookup in the retirement table */
845 fq = table_find_fq(p,
846 be32_to_cpu(msg->fq.fqid));
848 fq_state_change(p, fq, &swapped_msg, verb);
850 fq->cb.fqs(p, fq, &swapped_msg);
852 case QM_MR_VERB_FQPN:
854 #ifdef CONFIG_FSL_QMAN_FQ_LOOKUP
855 fq = get_fq_table_entry(
856 be32_to_cpu(msg->fq.contextB));
858 fq = (void *)(uintptr_t)
859 be32_to_cpu(msg->fq.contextB);
861 fq_state_change(p, fq, msg, verb);
863 fq->cb.fqs(p, fq, &swapped_msg);
865 case QM_MR_VERB_DC_ERN:
868 p->cb_dc_ern(p, msg);
872 static int warn_once;
875 pr_crit("Leaking DCP ERNs!\n");
881 pr_crit("Invalid MR verb 0x%02x\n", verb);
884 /* Its a software ERN */
885 #ifdef CONFIG_FSL_QMAN_FQ_LOOKUP
886 fq = get_fq_table_entry(be32_to_cpu(msg->ern.tag));
888 fq = (void *)(uintptr_t)be32_to_cpu(msg->ern.tag);
890 fq->cb.ern(p, fq, &swapped_msg);
896 qm_mr_cci_consume(&p->p, num);
899 * QM_PIRQ_CSCI/CCSCI has already been cleared, as part of its specific
900 * processing. If that interrupt source has meanwhile been re-asserted,
901 * we mustn't clear it here (or in the top-level interrupt handler).
903 return is & (QM_PIRQ_EQCI | QM_PIRQ_EQRI | QM_PIRQ_MRI);
907 * remove some slowish-path stuff from the "fast path" and make sure it isn't
910 static noinline void clear_vdqcr(struct qman_portal *p, struct qman_fq *fq)
912 p->vdqcr_owned = NULL;
914 fq_clear(fq, QMAN_FQ_STATE_VDQCR);
916 wake_up(&affine_queue);
920 * The only states that would conflict with other things if they ran at the
921 * same time on the same cpu are:
923 * (i) setting/clearing vdqcr_owned, and
924 * (ii) clearing the NE (Not Empty) flag.
926 * Both are safe. Because;
928 * (i) this clearing can only occur after qman_set_vdq() has set the
929 * vdqcr_owned field (which it does before setting VDQCR), and
930 * qman_volatile_dequeue() blocks interrupts and preemption while this is
931 * done so that we can't interfere.
932 * (ii) the NE flag is only cleared after qman_retire_fq() has set it, and as
933 * with (i) that API prevents us from interfering until it's safe.
935 * The good thing is that qman_set_vdq() and qman_retire_fq() run far
936 * less frequently (ie. per-FQ) than __poll_portal_fast() does, so the nett
937 * advantage comes from this function not having to "lock" anything at all.
939 * Note also that the callbacks are invoked at points which are safe against the
940 * above potential conflicts, but that this function itself is not re-entrant
941 * (this is because the function tracks one end of each FIFO in the portal and
942 * we do *not* want to lock that). So the consequence is that it is safe for
943 * user callbacks to call into any QMan API.
945 static inline unsigned int __poll_portal_fast(struct qman_portal *p,
946 unsigned int poll_limit)
948 const struct qm_dqrr_entry *dq;
950 enum qman_cb_dqrr_result res;
951 unsigned int limit = 0;
952 #if __BYTE_ORDER__ == __ORDER_LITTLE_ENDIAN__
953 struct qm_dqrr_entry *shadow;
956 qm_dqrr_pvb_update(&p->p);
957 dq = qm_dqrr_current(&p->p);
960 #if __BYTE_ORDER__ == __ORDER_LITTLE_ENDIAN__
961 /* If running on an LE system the fields of the
962 * dequeue entry must be swapper. Because the
963 * QMan HW will ignore writes the DQRR entry is
964 * copied and the index stored within the copy
966 shadow = &p->shadow_dqrr[DQRR_PTR2IDX(dq)];
969 shadow->fqid = be32_to_cpu(shadow->fqid);
970 shadow->contextB = be32_to_cpu(shadow->contextB);
971 shadow->seqnum = be16_to_cpu(shadow->seqnum);
972 hw_fd_to_cpu(&shadow->fd);
975 if (dq->stat & QM_DQRR_STAT_UNSCHEDULED) {
977 * VDQCR: don't trust context_b as the FQ may have
978 * been configured for h/w consumption and we're
979 * draining it post-retirement.
983 * We only set QMAN_FQ_STATE_NE when retiring, so we
984 * only need to check for clearing it when doing
985 * volatile dequeues. It's one less thing to check
986 * in the critical path (SDQCR).
988 if (dq->stat & QM_DQRR_STAT_FQ_EMPTY)
989 fq_clear(fq, QMAN_FQ_STATE_NE);
991 * This is duplicated from the SDQCR code, but we
992 * have stuff to do before *and* after this callback,
993 * and we don't want multiple if()s in the critical
996 res = fq->cb.dqrr(p, fq, dq);
997 if (res == qman_cb_dqrr_stop)
999 /* Check for VDQCR completion */
1000 if (dq->stat & QM_DQRR_STAT_DQCR_EXPIRED)
1003 /* SDQCR: context_b points to the FQ */
1004 #ifdef CONFIG_FSL_QMAN_FQ_LOOKUP
1005 fq = get_fq_table_entry(dq->contextB);
1007 fq = (void *)(uintptr_t)dq->contextB;
1009 /* Now let the callback do its stuff */
1010 res = fq->cb.dqrr(p, fq, dq);
1012 * The callback can request that we exit without
1013 * consuming this entry nor advancing;
1015 if (res == qman_cb_dqrr_stop)
1018 /* Interpret 'dq' from a driver perspective. */
1020 * Parking isn't possible unless HELDACTIVE was set. NB,
1021 * FORCEELIGIBLE implies HELDACTIVE, so we only need to
1022 * check for HELDACTIVE to cover both.
1024 DPAA_ASSERT((dq->stat & QM_DQRR_STAT_FQ_HELDACTIVE) ||
1025 (res != qman_cb_dqrr_park));
1026 /* just means "skip it, I'll consume it myself later on" */
1027 if (res != qman_cb_dqrr_defer)
1028 qm_dqrr_cdc_consume_1ptr(&p->p, dq,
1029 res == qman_cb_dqrr_park);
1031 qm_dqrr_next(&p->p);
1033 * Entry processed and consumed, increment our counter. The
1034 * callback can request that we exit after consuming the
1035 * entry, and we also exit if we reach our processing limit,
1036 * so loop back only if neither of these conditions is met.
1038 } while (++limit < poll_limit && res != qman_cb_dqrr_consume_stop);
1043 u16 qman_affine_channel(int cpu)
1046 struct qman_portal *portal = get_affine_portal();
1048 cpu = portal->config->cpu;
1050 DPAA_BUG_ON(!CPU_ISSET(cpu, &affine_mask));
1051 return affine_channels[cpu];
1054 unsigned int qman_portal_poll_rx(unsigned int poll_limit,
1056 struct qman_portal *p)
1058 struct qm_portal *portal = &p->p;
1059 register struct qm_dqrr *dqrr = &portal->dqrr;
1060 struct qm_dqrr_entry *dq[QM_DQRR_SIZE], *shadow[QM_DQRR_SIZE];
1061 struct qman_fq *fq[QM_DQRR_SIZE];
1062 unsigned int limit = 0, rx_number = 0;
1063 uint32_t consume = 0;
1066 qm_dqrr_pvb_update(&p->p);
1070 dq[rx_number] = dqrr->cursor;
1071 dqrr->cursor = DQRR_CARRYCLEAR(dqrr->cursor + 1);
1072 /* Prefetch the next DQRR entry */
1073 rte_prefetch0(dqrr->cursor);
1075 #if __BYTE_ORDER__ == __ORDER_LITTLE_ENDIAN__
1076 /* If running on an LE system the fields of the
1077 * dequeue entry must be swapper. Because the
1078 * QMan HW will ignore writes the DQRR entry is
1079 * copied and the index stored within the copy
1082 &p->shadow_dqrr[DQRR_PTR2IDX(dq[rx_number])];
1083 shadow[rx_number]->fd.opaque_addr =
1084 dq[rx_number]->fd.opaque_addr;
1085 shadow[rx_number]->fd.addr =
1086 be40_to_cpu(dq[rx_number]->fd.addr);
1087 shadow[rx_number]->fd.opaque =
1088 be32_to_cpu(dq[rx_number]->fd.opaque);
1090 shadow[rx_number] = dq[rx_number];
1093 /* SDQCR: context_b points to the FQ */
1094 #ifdef CONFIG_FSL_QMAN_FQ_LOOKUP
1095 fq[rx_number] = qman_fq_lookup_table[be32_to_cpu(
1096 dq[rx_number]->contextB)];
1098 fq[rx_number] = (void *)be32_to_cpu(
1099 dq[rx_number]->contextB);
1101 fq[rx_number]->cb.dqrr_prepare(shadow[rx_number],
1104 consume |= (1 << (31 - DQRR_PTR2IDX(shadow[rx_number])));
1107 } while (++limit < poll_limit);
1110 fq[0]->cb.dqrr_dpdk_pull_cb(fq, shadow, bufs, rx_number);
1112 /* Consume all the DQRR enries together */
1113 qm_out(DQRR_DCAP, (1 << 8) | consume);
1118 u32 qman_portal_dequeue(struct rte_event ev[], unsigned int poll_limit,
1121 const struct qm_dqrr_entry *dq;
1123 enum qman_cb_dqrr_result res;
1124 unsigned int limit = 0;
1125 struct qman_portal *p = get_affine_portal();
1126 #if RTE_BYTE_ORDER == RTE_LITTLE_ENDIAN
1127 struct qm_dqrr_entry *shadow;
1129 unsigned int rx_number = 0;
1132 qm_dqrr_pvb_update(&p->p);
1133 dq = qm_dqrr_current(&p->p);
1136 #if RTE_BYTE_ORDER == RTE_LITTLE_ENDIAN
1138 * If running on an LE system the fields of the
1139 * dequeue entry must be swapper. Because the
1140 * QMan HW will ignore writes the DQRR entry is
1141 * copied and the index stored within the copy
1143 shadow = &p->shadow_dqrr[DQRR_PTR2IDX(dq)];
1146 shadow->fqid = be32_to_cpu(shadow->fqid);
1147 shadow->contextB = be32_to_cpu(shadow->contextB);
1148 shadow->seqnum = be16_to_cpu(shadow->seqnum);
1149 hw_fd_to_cpu(&shadow->fd);
1152 /* SDQCR: context_b points to the FQ */
1153 #ifdef CONFIG_FSL_QMAN_FQ_LOOKUP
1154 fq = get_fq_table_entry(dq->contextB);
1156 fq = (void *)(uintptr_t)dq->contextB;
1158 /* Now let the callback do its stuff */
1159 res = fq->cb.dqrr_dpdk_cb(&ev[rx_number], p, fq,
1160 dq, &bufs[rx_number]);
1162 /* Interpret 'dq' from a driver perspective. */
1164 * Parking isn't possible unless HELDACTIVE was set. NB,
1165 * FORCEELIGIBLE implies HELDACTIVE, so we only need to
1166 * check for HELDACTIVE to cover both.
1168 DPAA_ASSERT((dq->stat & QM_DQRR_STAT_FQ_HELDACTIVE) ||
1169 (res != qman_cb_dqrr_park));
1170 if (res != qman_cb_dqrr_defer)
1171 qm_dqrr_cdc_consume_1ptr(&p->p, dq,
1172 res == qman_cb_dqrr_park);
1174 qm_dqrr_next(&p->p);
1176 * Entry processed and consumed, increment our counter. The
1177 * callback can request that we exit after consuming the
1178 * entry, and we also exit if we reach our processing limit,
1179 * so loop back only if neither of these conditions is met.
1181 } while (++limit < poll_limit);
1186 struct qm_dqrr_entry *qman_dequeue(struct qman_fq *fq)
1188 struct qman_portal *p = get_affine_portal();
1189 const struct qm_dqrr_entry *dq;
1190 #if __BYTE_ORDER__ == __ORDER_LITTLE_ENDIAN__
1191 struct qm_dqrr_entry *shadow;
1194 qm_dqrr_pvb_update(&p->p);
1195 dq = qm_dqrr_current(&p->p);
1199 if (!(dq->stat & QM_DQRR_STAT_FD_VALID)) {
1200 /* Invalid DQRR - put the portal and consume the DQRR.
1201 * Return NULL to user as no packet is seen.
1203 qman_dqrr_consume(fq, (struct qm_dqrr_entry *)dq);
1207 #if __BYTE_ORDER__ == __ORDER_LITTLE_ENDIAN__
1208 shadow = &p->shadow_dqrr[DQRR_PTR2IDX(dq)];
1211 shadow->fqid = be32_to_cpu(shadow->fqid);
1212 shadow->contextB = be32_to_cpu(shadow->contextB);
1213 shadow->seqnum = be16_to_cpu(shadow->seqnum);
1214 hw_fd_to_cpu(&shadow->fd);
1217 if (dq->stat & QM_DQRR_STAT_FQ_EMPTY)
1218 fq_clear(fq, QMAN_FQ_STATE_NE);
1220 return (struct qm_dqrr_entry *)dq;
1223 void qman_dqrr_consume(struct qman_fq *fq,
1224 struct qm_dqrr_entry *dq)
1226 struct qman_portal *p = get_affine_portal();
1228 if (dq->stat & QM_DQRR_STAT_DQCR_EXPIRED)
1231 qm_dqrr_cdc_consume_1ptr(&p->p, dq, 0);
1232 qm_dqrr_next(&p->p);
1235 int qman_poll_dqrr(unsigned int limit)
1237 struct qman_portal *p = get_affine_portal();
1240 ret = __poll_portal_fast(p, limit);
1244 void qman_poll(void)
1246 struct qman_portal *p = get_affine_portal();
1248 if ((~p->irq_sources) & QM_PIRQ_SLOW) {
1249 if (!(p->slowpoll--)) {
1250 u32 is = qm_isr_status_read(&p->p) & ~p->irq_sources;
1251 u32 active = __poll_portal_slow(p, is);
1254 qm_isr_status_clear(&p->p, active);
1255 p->slowpoll = SLOW_POLL_BUSY;
1257 p->slowpoll = SLOW_POLL_IDLE;
1260 if ((~p->irq_sources) & QM_PIRQ_DQRI)
1261 __poll_portal_fast(p, FSL_QMAN_POLL_LIMIT);
1264 void qman_stop_dequeues(void)
1266 struct qman_portal *p = get_affine_portal();
1268 qman_stop_dequeues_ex(p);
1271 void qman_start_dequeues(void)
1273 struct qman_portal *p = get_affine_portal();
1275 DPAA_ASSERT(p->dqrr_disable_ref > 0);
1276 if (!(--p->dqrr_disable_ref))
1277 qm_dqrr_set_maxfill(&p->p, DQRR_MAXFILL);
1280 void qman_static_dequeue_add(u32 pools, struct qman_portal *qp)
1282 struct qman_portal *p = qp ? qp : get_affine_portal();
1284 pools &= p->config->pools;
1286 qm_dqrr_sdqcr_set(&p->p, p->sdqcr);
1289 void qman_static_dequeue_del(u32 pools, struct qman_portal *qp)
1291 struct qman_portal *p = qp ? qp : get_affine_portal();
1293 pools &= p->config->pools;
1295 qm_dqrr_sdqcr_set(&p->p, p->sdqcr);
1298 u32 qman_static_dequeue_get(struct qman_portal *qp)
1300 struct qman_portal *p = qp ? qp : get_affine_portal();
1304 void qman_dca(const struct qm_dqrr_entry *dq, int park_request)
1306 struct qman_portal *p = get_affine_portal();
1308 qm_dqrr_cdc_consume_1ptr(&p->p, dq, park_request);
1311 void qman_dca_index(u8 index, int park_request)
1313 struct qman_portal *p = get_affine_portal();
1315 qm_dqrr_cdc_consume_1(&p->p, index, park_request);
1318 /* Frame queue API */
1319 static const char *mcr_result_str(u8 result)
1322 case QM_MCR_RESULT_NULL:
1323 return "QM_MCR_RESULT_NULL";
1324 case QM_MCR_RESULT_OK:
1325 return "QM_MCR_RESULT_OK";
1326 case QM_MCR_RESULT_ERR_FQID:
1327 return "QM_MCR_RESULT_ERR_FQID";
1328 case QM_MCR_RESULT_ERR_FQSTATE:
1329 return "QM_MCR_RESULT_ERR_FQSTATE";
1330 case QM_MCR_RESULT_ERR_NOTEMPTY:
1331 return "QM_MCR_RESULT_ERR_NOTEMPTY";
1332 case QM_MCR_RESULT_PENDING:
1333 return "QM_MCR_RESULT_PENDING";
1334 case QM_MCR_RESULT_ERR_BADCOMMAND:
1335 return "QM_MCR_RESULT_ERR_BADCOMMAND";
1337 return "<unknown MCR result>";
1340 int qman_create_fq(u32 fqid, u32 flags, struct qman_fq *fq)
1343 struct qm_mcr_queryfq_np np;
1344 struct qm_mc_command *mcc;
1345 struct qm_mc_result *mcr;
1346 struct qman_portal *p;
1348 if (flags & QMAN_FQ_FLAG_DYNAMIC_FQID) {
1349 int ret = qman_alloc_fqid(&fqid);
1354 spin_lock_init(&fq->fqlock);
1356 fq->fqid_le = cpu_to_be32(fqid);
1358 fq->state = qman_fq_state_oos;
1359 fq->cgr_groupid = 0;
1360 #ifdef CONFIG_FSL_QMAN_FQ_LOOKUP
1361 if (unlikely(find_empty_fq_table_entry(&fq->key, fq))) {
1362 pr_info("Find empty table entry failed\n");
1366 if (!(flags & QMAN_FQ_FLAG_AS_IS) || (flags & QMAN_FQ_FLAG_NO_MODIFY))
1368 /* Everything else is AS_IS support */
1369 p = get_affine_portal();
1370 mcc = qm_mc_start(&p->p);
1371 mcc->queryfq.fqid = cpu_to_be32(fqid);
1372 qm_mc_commit(&p->p, QM_MCC_VERB_QUERYFQ);
1373 while (!(mcr = qm_mc_result(&p->p)))
1375 DPAA_ASSERT((mcr->verb & QM_MCR_VERB_MASK) == QM_MCC_VERB_QUERYFQ);
1376 if (mcr->result != QM_MCR_RESULT_OK) {
1377 pr_err("QUERYFQ failed: %s\n", mcr_result_str(mcr->result));
1380 fqd = mcr->queryfq.fqd;
1381 hw_fqd_to_cpu(&fqd);
1382 mcc = qm_mc_start(&p->p);
1383 mcc->queryfq_np.fqid = cpu_to_be32(fqid);
1384 qm_mc_commit(&p->p, QM_MCC_VERB_QUERYFQ_NP);
1385 while (!(mcr = qm_mc_result(&p->p)))
1387 DPAA_ASSERT((mcr->verb & QM_MCR_VERB_MASK) == QM_MCC_VERB_QUERYFQ_NP);
1388 if (mcr->result != QM_MCR_RESULT_OK) {
1389 pr_err("QUERYFQ_NP failed: %s\n", mcr_result_str(mcr->result));
1392 np = mcr->queryfq_np;
1393 /* Phew, have queryfq and queryfq_np results, stitch together
1394 * the FQ object from those.
1396 fq->cgr_groupid = fqd.cgid;
1397 switch (np.state & QM_MCR_NP_STATE_MASK) {
1398 case QM_MCR_NP_STATE_OOS:
1400 case QM_MCR_NP_STATE_RETIRED:
1401 fq->state = qman_fq_state_retired;
1403 fq_set(fq, QMAN_FQ_STATE_NE);
1405 case QM_MCR_NP_STATE_TEN_SCHED:
1406 case QM_MCR_NP_STATE_TRU_SCHED:
1407 case QM_MCR_NP_STATE_ACTIVE:
1408 fq->state = qman_fq_state_sched;
1409 if (np.state & QM_MCR_NP_STATE_R)
1410 fq_set(fq, QMAN_FQ_STATE_CHANGING);
1412 case QM_MCR_NP_STATE_PARKED:
1413 fq->state = qman_fq_state_parked;
1416 DPAA_ASSERT(NULL == "invalid FQ state");
1418 if (fqd.fq_ctrl & QM_FQCTRL_CGE)
1419 fq->state |= QMAN_FQ_STATE_CGR_EN;
1422 if (flags & QMAN_FQ_FLAG_DYNAMIC_FQID)
1423 qman_release_fqid(fqid);
1427 void qman_destroy_fq(struct qman_fq *fq, u32 flags __maybe_unused)
1430 * We don't need to lock the FQ as it is a pre-condition that the FQ be
1431 * quiesced. Instead, run some checks.
1433 switch (fq->state) {
1434 case qman_fq_state_parked:
1435 DPAA_ASSERT(flags & QMAN_FQ_DESTROY_PARKED);
1437 case qman_fq_state_oos:
1438 if (fq_isset(fq, QMAN_FQ_FLAG_DYNAMIC_FQID))
1439 qman_release_fqid(fq->fqid);
1440 #ifdef CONFIG_FSL_QMAN_FQ_LOOKUP
1441 clear_fq_table_entry(fq->key);
1447 DPAA_ASSERT(NULL == "qman_free_fq() on unquiesced FQ!");
1450 u32 qman_fq_fqid(struct qman_fq *fq)
1455 void qman_fq_state(struct qman_fq *fq, enum qman_fq_state *state, u32 *flags)
1463 int qman_init_fq(struct qman_fq *fq, u32 flags, struct qm_mcc_initfq *opts)
1465 struct qm_mc_command *mcc;
1466 struct qm_mc_result *mcr;
1467 struct qman_portal *p;
1469 u8 res, myverb = (flags & QMAN_INITFQ_FLAG_SCHED) ?
1470 QM_MCC_VERB_INITFQ_SCHED : QM_MCC_VERB_INITFQ_PARKED;
1472 if ((fq->state != qman_fq_state_oos) &&
1473 (fq->state != qman_fq_state_parked))
1475 #ifdef RTE_LIBRTE_DPAA_HWDEBUG
1476 if (unlikely(fq_isset(fq, QMAN_FQ_FLAG_NO_MODIFY)))
1479 if (opts && (opts->we_mask & QM_INITFQ_WE_OAC)) {
1480 /* And can't be set at the same time as TDTHRESH */
1481 if (opts->we_mask & QM_INITFQ_WE_TDTHRESH)
1484 /* Issue an INITFQ_[PARKED|SCHED] management command */
1485 p = get_affine_portal();
1487 if (unlikely((fq_isset(fq, QMAN_FQ_STATE_CHANGING)) ||
1488 ((fq->state != qman_fq_state_oos) &&
1489 (fq->state != qman_fq_state_parked)))) {
1493 mcc = qm_mc_start(&p->p);
1495 mcc->initfq = *opts;
1496 mcc->initfq.fqid = cpu_to_be32(fq->fqid);
1497 mcc->initfq.count = 0;
1499 * If the FQ does *not* have the TO_DCPORTAL flag, context_b is set as a
1500 * demux pointer. Otherwise, the caller-provided value is allowed to
1501 * stand, don't overwrite it.
1503 if (fq_isclear(fq, QMAN_FQ_FLAG_TO_DCPORTAL)) {
1506 mcc->initfq.we_mask |= QM_INITFQ_WE_CONTEXTB;
1507 #ifdef CONFIG_FSL_QMAN_FQ_LOOKUP
1508 mcc->initfq.fqd.context_b = fq->key;
1510 mcc->initfq.fqd.context_b = (u32)(uintptr_t)fq;
1513 * and the physical address - NB, if the user wasn't trying to
1514 * set CONTEXTA, clear the stashing settings.
1516 if (!(mcc->initfq.we_mask & QM_INITFQ_WE_CONTEXTA)) {
1517 mcc->initfq.we_mask |= QM_INITFQ_WE_CONTEXTA;
1518 memset(&mcc->initfq.fqd.context_a, 0,
1519 sizeof(mcc->initfq.fqd.context_a));
1521 phys_fq = rte_mem_virt2iova(fq);
1522 qm_fqd_stashing_set64(&mcc->initfq.fqd, phys_fq);
1525 if (flags & QMAN_INITFQ_FLAG_LOCAL) {
1526 mcc->initfq.fqd.dest.channel = p->config->channel;
1527 if (!(mcc->initfq.we_mask & QM_INITFQ_WE_DESTWQ)) {
1528 mcc->initfq.we_mask |= QM_INITFQ_WE_DESTWQ;
1529 mcc->initfq.fqd.dest.wq = 4;
1532 mcc->initfq.we_mask = cpu_to_be16(mcc->initfq.we_mask);
1533 cpu_to_hw_fqd(&mcc->initfq.fqd);
1534 qm_mc_commit(&p->p, myverb);
1535 while (!(mcr = qm_mc_result(&p->p)))
1537 DPAA_ASSERT((mcr->verb & QM_MCR_VERB_MASK) == myverb);
1539 if (res != QM_MCR_RESULT_OK) {
1544 if (opts->we_mask & QM_INITFQ_WE_FQCTRL) {
1545 if (opts->fqd.fq_ctrl & QM_FQCTRL_CGE)
1546 fq_set(fq, QMAN_FQ_STATE_CGR_EN);
1548 fq_clear(fq, QMAN_FQ_STATE_CGR_EN);
1550 if (opts->we_mask & QM_INITFQ_WE_CGID)
1551 fq->cgr_groupid = opts->fqd.cgid;
1553 fq->state = (flags & QMAN_INITFQ_FLAG_SCHED) ?
1554 qman_fq_state_sched : qman_fq_state_parked;
1559 int qman_schedule_fq(struct qman_fq *fq)
1561 struct qm_mc_command *mcc;
1562 struct qm_mc_result *mcr;
1563 struct qman_portal *p;
1568 if (fq->state != qman_fq_state_parked)
1570 #ifdef RTE_LIBRTE_DPAA_HWDEBUG
1571 if (unlikely(fq_isset(fq, QMAN_FQ_FLAG_NO_MODIFY)))
1574 /* Issue a ALTERFQ_SCHED management command */
1575 p = get_affine_portal();
1578 if (unlikely((fq_isset(fq, QMAN_FQ_STATE_CHANGING)) ||
1579 (fq->state != qman_fq_state_parked))) {
1583 mcc = qm_mc_start(&p->p);
1584 mcc->alterfq.fqid = cpu_to_be32(fq->fqid);
1585 qm_mc_commit(&p->p, QM_MCC_VERB_ALTER_SCHED);
1586 while (!(mcr = qm_mc_result(&p->p)))
1588 DPAA_ASSERT((mcr->verb & QM_MCR_VERB_MASK) == QM_MCR_VERB_ALTER_SCHED);
1590 if (res != QM_MCR_RESULT_OK) {
1594 fq->state = qman_fq_state_sched;
1601 int qman_retire_fq(struct qman_fq *fq, u32 *flags)
1603 struct qm_mc_command *mcc;
1604 struct qm_mc_result *mcr;
1605 struct qman_portal *p;
1610 if ((fq->state != qman_fq_state_parked) &&
1611 (fq->state != qman_fq_state_sched))
1613 #ifdef RTE_LIBRTE_DPAA_HWDEBUG
1614 if (unlikely(fq_isset(fq, QMAN_FQ_FLAG_NO_MODIFY)))
1617 p = get_affine_portal();
1620 if (unlikely((fq_isset(fq, QMAN_FQ_STATE_CHANGING)) ||
1621 (fq->state == qman_fq_state_retired) ||
1622 (fq->state == qman_fq_state_oos))) {
1626 rval = table_push_fq(p, fq);
1629 mcc = qm_mc_start(&p->p);
1630 mcc->alterfq.fqid = cpu_to_be32(fq->fqid);
1631 qm_mc_commit(&p->p, QM_MCC_VERB_ALTER_RETIRE);
1632 while (!(mcr = qm_mc_result(&p->p)))
1634 DPAA_ASSERT((mcr->verb & QM_MCR_VERB_MASK) == QM_MCR_VERB_ALTER_RETIRE);
1637 * "Elegant" would be to treat OK/PENDING the same way; set CHANGING,
1638 * and defer the flags until FQRNI or FQRN (respectively) show up. But
1639 * "Friendly" is to process OK immediately, and not set CHANGING. We do
1640 * friendly, otherwise the caller doesn't necessarily have a fully
1641 * "retired" FQ on return even if the retirement was immediate. However
1642 * this does mean some code duplication between here and
1643 * fq_state_change().
1645 if (likely(res == QM_MCR_RESULT_OK)) {
1647 /* Process 'fq' right away, we'll ignore FQRNI */
1648 if (mcr->alterfq.fqs & QM_MCR_FQS_NOTEMPTY)
1649 fq_set(fq, QMAN_FQ_STATE_NE);
1650 if (mcr->alterfq.fqs & QM_MCR_FQS_ORLPRESENT)
1651 fq_set(fq, QMAN_FQ_STATE_ORL);
1653 table_del_fq(p, fq);
1656 fq->state = qman_fq_state_retired;
1659 * Another issue with supporting "immediate" retirement
1660 * is that we're forced to drop FQRNIs, because by the
1661 * time they're seen it may already be "too late" (the
1662 * fq may have been OOS'd and free()'d already). But if
1663 * the upper layer wants a callback whether it's
1664 * immediate or not, we have to fake a "MR" entry to
1665 * look like an FQRNI...
1667 struct qm_mr_entry msg;
1669 msg.verb = QM_MR_VERB_FQRNI;
1670 msg.fq.fqs = mcr->alterfq.fqs;
1671 msg.fq.fqid = fq->fqid;
1672 #ifdef CONFIG_FSL_QMAN_FQ_LOOKUP
1673 msg.fq.contextB = fq->key;
1675 msg.fq.contextB = (u32)(uintptr_t)fq;
1677 fq->cb.fqs(p, fq, &msg);
1679 } else if (res == QM_MCR_RESULT_PENDING) {
1681 fq_set(fq, QMAN_FQ_STATE_CHANGING);
1684 table_del_fq(p, fq);
1691 int qman_oos_fq(struct qman_fq *fq)
1693 struct qm_mc_command *mcc;
1694 struct qm_mc_result *mcr;
1695 struct qman_portal *p;
1700 if (fq->state != qman_fq_state_retired)
1702 #ifdef RTE_LIBRTE_DPAA_HWDEBUG
1703 if (unlikely(fq_isset(fq, QMAN_FQ_FLAG_NO_MODIFY)))
1706 p = get_affine_portal();
1708 if (unlikely((fq_isset(fq, QMAN_FQ_STATE_BLOCKOOS)) ||
1709 (fq->state != qman_fq_state_retired))) {
1713 mcc = qm_mc_start(&p->p);
1714 mcc->alterfq.fqid = cpu_to_be32(fq->fqid);
1715 qm_mc_commit(&p->p, QM_MCC_VERB_ALTER_OOS);
1716 while (!(mcr = qm_mc_result(&p->p)))
1718 DPAA_ASSERT((mcr->verb & QM_MCR_VERB_MASK) == QM_MCR_VERB_ALTER_OOS);
1720 if (res != QM_MCR_RESULT_OK) {
1724 fq->state = qman_fq_state_oos;
1730 int qman_fq_flow_control(struct qman_fq *fq, int xon)
1732 struct qm_mc_command *mcc;
1733 struct qm_mc_result *mcr;
1734 struct qman_portal *p;
1740 if ((fq->state == qman_fq_state_oos) ||
1741 (fq->state == qman_fq_state_retired) ||
1742 (fq->state == qman_fq_state_parked))
1745 #ifdef RTE_LIBRTE_DPAA_HWDEBUG
1746 if (unlikely(fq_isset(fq, QMAN_FQ_FLAG_NO_MODIFY)))
1749 /* Issue a ALTER_FQXON or ALTER_FQXOFF management command */
1750 p = get_affine_portal();
1752 if (unlikely((fq_isset(fq, QMAN_FQ_STATE_CHANGING)) ||
1753 (fq->state == qman_fq_state_parked) ||
1754 (fq->state == qman_fq_state_oos) ||
1755 (fq->state == qman_fq_state_retired))) {
1759 mcc = qm_mc_start(&p->p);
1760 mcc->alterfq.fqid = fq->fqid;
1761 mcc->alterfq.count = 0;
1762 myverb = xon ? QM_MCC_VERB_ALTER_FQXON : QM_MCC_VERB_ALTER_FQXOFF;
1764 qm_mc_commit(&p->p, myverb);
1765 while (!(mcr = qm_mc_result(&p->p)))
1767 DPAA_ASSERT((mcr->verb & QM_MCR_VERB_MASK) == myverb);
1770 if (res != QM_MCR_RESULT_OK) {
1779 int qman_query_fq(struct qman_fq *fq, struct qm_fqd *fqd)
1781 struct qm_mc_command *mcc;
1782 struct qm_mc_result *mcr;
1783 struct qman_portal *p = get_affine_portal();
1787 mcc = qm_mc_start(&p->p);
1788 mcc->queryfq.fqid = cpu_to_be32(fq->fqid);
1789 qm_mc_commit(&p->p, QM_MCC_VERB_QUERYFQ);
1790 while (!(mcr = qm_mc_result(&p->p)))
1792 DPAA_ASSERT((mcr->verb & QM_MCR_VERB_MASK) == QM_MCR_VERB_QUERYFQ);
1794 if (res == QM_MCR_RESULT_OK)
1795 *fqd = mcr->queryfq.fqd;
1797 if (res != QM_MCR_RESULT_OK)
1802 int qman_query_fq_has_pkts(struct qman_fq *fq)
1804 struct qm_mc_command *mcc;
1805 struct qm_mc_result *mcr;
1806 struct qman_portal *p = get_affine_portal();
1811 mcc = qm_mc_start(&p->p);
1812 mcc->queryfq.fqid = cpu_to_be32(fq->fqid);
1813 qm_mc_commit(&p->p, QM_MCC_VERB_QUERYFQ_NP);
1814 while (!(mcr = qm_mc_result(&p->p)))
1817 if (res == QM_MCR_RESULT_OK)
1818 ret = !!mcr->queryfq_np.frm_cnt;
1822 int qman_query_fq_np(struct qman_fq *fq, struct qm_mcr_queryfq_np *np)
1824 struct qm_mc_command *mcc;
1825 struct qm_mc_result *mcr;
1826 struct qman_portal *p = get_affine_portal();
1830 mcc = qm_mc_start(&p->p);
1831 mcc->queryfq.fqid = cpu_to_be32(fq->fqid);
1832 qm_mc_commit(&p->p, QM_MCC_VERB_QUERYFQ_NP);
1833 while (!(mcr = qm_mc_result(&p->p)))
1835 DPAA_ASSERT((mcr->verb & QM_MCR_VERB_MASK) == QM_MCR_VERB_QUERYFQ_NP);
1837 if (res == QM_MCR_RESULT_OK) {
1838 *np = mcr->queryfq_np;
1839 np->fqd_link = be24_to_cpu(np->fqd_link);
1840 np->odp_seq = be16_to_cpu(np->odp_seq);
1841 np->orp_nesn = be16_to_cpu(np->orp_nesn);
1842 np->orp_ea_hseq = be16_to_cpu(np->orp_ea_hseq);
1843 np->orp_ea_tseq = be16_to_cpu(np->orp_ea_tseq);
1844 np->orp_ea_hptr = be24_to_cpu(np->orp_ea_hptr);
1845 np->orp_ea_tptr = be24_to_cpu(np->orp_ea_tptr);
1846 np->pfdr_hptr = be24_to_cpu(np->pfdr_hptr);
1847 np->pfdr_tptr = be24_to_cpu(np->pfdr_tptr);
1848 np->ics_surp = be16_to_cpu(np->ics_surp);
1849 np->byte_cnt = be32_to_cpu(np->byte_cnt);
1850 np->frm_cnt = be24_to_cpu(np->frm_cnt);
1851 np->ra1_sfdr = be16_to_cpu(np->ra1_sfdr);
1852 np->ra2_sfdr = be16_to_cpu(np->ra2_sfdr);
1853 np->od1_sfdr = be16_to_cpu(np->od1_sfdr);
1854 np->od2_sfdr = be16_to_cpu(np->od2_sfdr);
1855 np->od3_sfdr = be16_to_cpu(np->od3_sfdr);
1857 if (res == QM_MCR_RESULT_ERR_FQID)
1859 else if (res != QM_MCR_RESULT_OK)
1864 int qman_query_fq_frm_cnt(struct qman_fq *fq, u32 *frm_cnt)
1866 struct qm_mc_command *mcc;
1867 struct qm_mc_result *mcr;
1868 struct qman_portal *p = get_affine_portal();
1870 mcc = qm_mc_start(&p->p);
1871 mcc->queryfq.fqid = cpu_to_be32(fq->fqid);
1872 qm_mc_commit(&p->p, QM_MCC_VERB_QUERYFQ_NP);
1873 while (!(mcr = qm_mc_result(&p->p)))
1875 DPAA_ASSERT((mcr->verb & QM_MCR_VERB_MASK) == QM_MCR_VERB_QUERYFQ_NP);
1877 if (mcr->result == QM_MCR_RESULT_OK)
1878 *frm_cnt = be24_to_cpu(mcr->queryfq_np.frm_cnt);
1879 else if (mcr->result == QM_MCR_RESULT_ERR_FQID)
1881 else if (mcr->result != QM_MCR_RESULT_OK)
1886 int qman_query_wq(u8 query_dedicated, struct qm_mcr_querywq *wq)
1888 struct qm_mc_command *mcc;
1889 struct qm_mc_result *mcr;
1890 struct qman_portal *p = get_affine_portal();
1894 myverb = (query_dedicated) ? QM_MCR_VERB_QUERYWQ_DEDICATED :
1895 QM_MCR_VERB_QUERYWQ;
1896 mcc = qm_mc_start(&p->p);
1897 mcc->querywq.channel.id = cpu_to_be16(wq->channel.id);
1898 qm_mc_commit(&p->p, myverb);
1899 while (!(mcr = qm_mc_result(&p->p)))
1901 DPAA_ASSERT((mcr->verb & QM_MCR_VERB_MASK) == myverb);
1903 if (res == QM_MCR_RESULT_OK) {
1906 wq->channel.id = be16_to_cpu(mcr->querywq.channel.id);
1907 array_len = ARRAY_SIZE(mcr->querywq.wq_len);
1908 for (i = 0; i < array_len; i++)
1909 wq->wq_len[i] = be32_to_cpu(mcr->querywq.wq_len[i]);
1911 if (res != QM_MCR_RESULT_OK) {
1912 pr_err("QUERYWQ failed: %s\n", mcr_result_str(res));
1918 int qman_testwrite_cgr(struct qman_cgr *cgr, u64 i_bcnt,
1919 struct qm_mcr_cgrtestwrite *result)
1921 struct qm_mc_command *mcc;
1922 struct qm_mc_result *mcr;
1923 struct qman_portal *p = get_affine_portal();
1927 mcc = qm_mc_start(&p->p);
1928 mcc->cgrtestwrite.cgid = cgr->cgrid;
1929 mcc->cgrtestwrite.i_bcnt_hi = (u8)(i_bcnt >> 32);
1930 mcc->cgrtestwrite.i_bcnt_lo = (u32)i_bcnt;
1931 qm_mc_commit(&p->p, QM_MCC_VERB_CGRTESTWRITE);
1932 while (!(mcr = qm_mc_result(&p->p)))
1934 DPAA_ASSERT((mcr->verb & QM_MCR_VERB_MASK) == QM_MCC_VERB_CGRTESTWRITE);
1936 if (res == QM_MCR_RESULT_OK)
1937 *result = mcr->cgrtestwrite;
1938 if (res != QM_MCR_RESULT_OK) {
1939 pr_err("CGR TEST WRITE failed: %s\n", mcr_result_str(res));
1945 int qman_query_cgr(struct qman_cgr *cgr, struct qm_mcr_querycgr *cgrd)
1947 struct qm_mc_command *mcc;
1948 struct qm_mc_result *mcr;
1949 struct qman_portal *p = get_affine_portal();
1953 mcc = qm_mc_start(&p->p);
1954 mcc->querycgr.cgid = cgr->cgrid;
1955 qm_mc_commit(&p->p, QM_MCC_VERB_QUERYCGR);
1956 while (!(mcr = qm_mc_result(&p->p)))
1958 DPAA_ASSERT((mcr->verb & QM_MCR_VERB_MASK) == QM_MCC_VERB_QUERYCGR);
1960 if (res == QM_MCR_RESULT_OK)
1961 *cgrd = mcr->querycgr;
1962 if (res != QM_MCR_RESULT_OK) {
1963 pr_err("QUERY_CGR failed: %s\n", mcr_result_str(res));
1966 cgrd->cgr.wr_parm_g.word =
1967 be32_to_cpu(cgrd->cgr.wr_parm_g.word);
1968 cgrd->cgr.wr_parm_y.word =
1969 be32_to_cpu(cgrd->cgr.wr_parm_y.word);
1970 cgrd->cgr.wr_parm_r.word =
1971 be32_to_cpu(cgrd->cgr.wr_parm_r.word);
1972 cgrd->cgr.cscn_targ = be32_to_cpu(cgrd->cgr.cscn_targ);
1973 cgrd->cgr.__cs_thres = be16_to_cpu(cgrd->cgr.__cs_thres);
1974 for (i = 0; i < ARRAY_SIZE(cgrd->cscn_targ_swp); i++)
1975 cgrd->cscn_targ_swp[i] =
1976 be32_to_cpu(cgrd->cscn_targ_swp[i]);
1980 int qman_query_congestion(struct qm_mcr_querycongestion *congestion)
1982 struct qm_mc_result *mcr;
1983 struct qman_portal *p = get_affine_portal();
1988 qm_mc_commit(&p->p, QM_MCC_VERB_QUERYCONGESTION);
1989 while (!(mcr = qm_mc_result(&p->p)))
1991 DPAA_ASSERT((mcr->verb & QM_MCR_VERB_MASK) ==
1992 QM_MCC_VERB_QUERYCONGESTION);
1994 if (res == QM_MCR_RESULT_OK)
1995 *congestion = mcr->querycongestion;
1996 if (res != QM_MCR_RESULT_OK) {
1997 pr_err("QUERY_CONGESTION failed: %s\n", mcr_result_str(res));
2000 for (i = 0; i < ARRAY_SIZE(congestion->state.state); i++)
2001 congestion->state.state[i] =
2002 be32_to_cpu(congestion->state.state[i]);
2006 int qman_set_vdq(struct qman_fq *fq, u16 num)
2008 struct qman_portal *p = get_affine_portal();
2012 vdqcr = QM_VDQCR_EXACT;
2013 vdqcr |= QM_VDQCR_NUMFRAMES_SET(num);
2015 if ((fq->state != qman_fq_state_parked) &&
2016 (fq->state != qman_fq_state_retired)) {
2020 if (fq_isset(fq, QMAN_FQ_STATE_VDQCR)) {
2024 vdqcr = (vdqcr & ~QM_VDQCR_FQID_MASK) | fq->fqid;
2026 if (!p->vdqcr_owned) {
2028 if (fq_isset(fq, QMAN_FQ_STATE_VDQCR))
2030 fq_set(fq, QMAN_FQ_STATE_VDQCR);
2032 p->vdqcr_owned = fq;
2037 qm_dqrr_vdqcr_set(&p->p, vdqcr);
2043 int qman_volatile_dequeue(struct qman_fq *fq, u32 flags __maybe_unused,
2046 struct qman_portal *p;
2049 if ((fq->state != qman_fq_state_parked) &&
2050 (fq->state != qman_fq_state_retired))
2052 if (vdqcr & QM_VDQCR_FQID_MASK)
2054 if (fq_isset(fq, QMAN_FQ_STATE_VDQCR))
2056 vdqcr = (vdqcr & ~QM_VDQCR_FQID_MASK) | fq->fqid;
2058 p = get_affine_portal();
2060 if (!p->vdqcr_owned) {
2062 if (fq_isset(fq, QMAN_FQ_STATE_VDQCR))
2064 fq_set(fq, QMAN_FQ_STATE_VDQCR);
2066 p->vdqcr_owned = fq;
2074 qm_dqrr_vdqcr_set(&p->p, vdqcr);
2078 static noinline void update_eqcr_ci(struct qman_portal *p, u8 avail)
2081 qm_eqcr_cce_prefetch(&p->p);
2083 qm_eqcr_cce_update(&p->p);
2086 int qman_eqcr_is_empty(void)
2088 struct qman_portal *p = get_affine_portal();
2091 update_eqcr_ci(p, 0);
2092 avail = qm_eqcr_get_fill(&p->p);
2093 return (avail == 0);
2096 void qman_set_dc_ern(qman_cb_dc_ern handler, int affine)
2099 struct qman_portal *p = get_affine_portal();
2101 p->cb_dc_ern = handler;
2103 cb_dc_ern = handler;
2106 static inline struct qm_eqcr_entry *try_p_eq_start(struct qman_portal *p,
2108 const struct qm_fd *fd,
2111 struct qm_eqcr_entry *eq;
2114 if (p->use_eqcr_ci_stashing) {
2116 * The stashing case is easy, only update if we need to in
2117 * order to try and liberate ring entries.
2119 eq = qm_eqcr_start_stash(&p->p);
2122 * The non-stashing case is harder, need to prefetch ahead of
2125 avail = qm_eqcr_get_avail(&p->p);
2127 update_eqcr_ci(p, avail);
2128 eq = qm_eqcr_start_no_stash(&p->p);
2134 if (flags & QMAN_ENQUEUE_FLAG_DCA)
2135 eq->dca = QM_EQCR_DCA_ENABLE |
2136 ((flags & QMAN_ENQUEUE_FLAG_DCA_PARK) ?
2137 QM_EQCR_DCA_PARK : 0) |
2138 ((flags >> 8) & QM_EQCR_DCA_IDXMASK);
2139 eq->fqid = cpu_to_be32(fq->fqid);
2140 #ifdef CONFIG_FSL_QMAN_FQ_LOOKUP
2141 eq->tag = cpu_to_be32(fq->key);
2143 eq->tag = cpu_to_be32((u32)(uintptr_t)fq);
2146 cpu_to_hw_fd(&eq->fd);
2150 int qman_enqueue(struct qman_fq *fq, const struct qm_fd *fd, u32 flags)
2152 struct qman_portal *p = get_affine_portal();
2153 struct qm_eqcr_entry *eq;
2155 eq = try_p_eq_start(p, fq, fd, flags);
2158 /* Note: QM_EQCR_VERB_INTERRUPT == QMAN_ENQUEUE_FLAG_WAIT_SYNC */
2159 qm_eqcr_pvb_commit(&p->p, QM_EQCR_VERB_CMD_ENQUEUE |
2160 (flags & (QM_EQCR_VERB_COLOUR_MASK | QM_EQCR_VERB_INTERRUPT)));
2161 /* Factor the below out, it's used from qman_enqueue_orp() too */
2165 int qman_enqueue_multi(struct qman_fq *fq,
2166 const struct qm_fd *fd, u32 *flags,
2169 struct qman_portal *p = get_affine_portal();
2170 struct qm_portal *portal = &p->p;
2172 register struct qm_eqcr *eqcr = &portal->eqcr;
2173 struct qm_eqcr_entry *eq = eqcr->cursor, *prev_eq;
2175 u8 i = 0, diff, old_ci, sent = 0;
2177 /* Update the available entries if no entry is free */
2178 if (!eqcr->available) {
2180 eqcr->ci = qm_cl_in(EQCR_CI) & (QM_EQCR_SIZE - 1);
2181 diff = qm_cyc_diff(QM_EQCR_SIZE, old_ci, eqcr->ci);
2182 eqcr->available += diff;
2187 /* try to send as many frames as possible */
2188 while (eqcr->available && frames_to_send--) {
2189 eq->fqid = fq->fqid_le;
2190 #ifdef CONFIG_FSL_QMAN_FQ_LOOKUP
2191 eq->tag = cpu_to_be32(fq->key);
2193 eq->tag = cpu_to_be32((u32)(uintptr_t)fq);
2195 eq->fd.opaque_addr = fd->opaque_addr;
2196 eq->fd.addr = cpu_to_be40(fd->addr);
2197 eq->fd.status = cpu_to_be32(fd->status);
2198 eq->fd.opaque = cpu_to_be32(fd->opaque);
2199 if (flags && (flags[i] & QMAN_ENQUEUE_FLAG_DCA)) {
2200 eq->dca = QM_EQCR_DCA_ENABLE |
2201 ((flags[i] >> 8) & QM_EQCR_DCA_IDXMASK);
2204 eq = (void *)((unsigned long)(eq + 1) &
2205 (~(unsigned long)(QM_EQCR_SIZE << 6)));
2212 /* In order for flushes to complete faster, all lines are recorded in
2216 for (i = 0; i < sent; i++) {
2217 eq->__dont_write_directly__verb =
2218 QM_EQCR_VERB_CMD_ENQUEUE | eqcr->vbit;
2220 eq = (void *)((unsigned long)(eq + 1) &
2221 (~(unsigned long)(QM_EQCR_SIZE << 6)));
2222 if (unlikely((prev_eq + 1) != eq))
2223 eqcr->vbit ^= QM_EQCR_VERB_VBIT;
2226 /* We need to flush all the lines but without load/store operations
2230 for (i = 0; i < sent; i++) {
2232 eq = (void *)((unsigned long)(eq + 1) &
2233 (~(unsigned long)(QM_EQCR_SIZE << 6)));
2235 /* Update cursor for the next call */
2241 qman_enqueue_multi_fq(struct qman_fq *fq[], const struct qm_fd *fd,
2244 struct qman_portal *p = get_affine_portal();
2245 struct qm_portal *portal = &p->p;
2247 register struct qm_eqcr *eqcr = &portal->eqcr;
2248 struct qm_eqcr_entry *eq = eqcr->cursor, *prev_eq;
2250 u8 i, diff, old_ci, sent = 0;
2252 /* Update the available entries if no entry is free */
2253 if (!eqcr->available) {
2255 eqcr->ci = qm_cl_in(EQCR_CI) & (QM_EQCR_SIZE - 1);
2256 diff = qm_cyc_diff(QM_EQCR_SIZE, old_ci, eqcr->ci);
2257 eqcr->available += diff;
2262 /* try to send as many frames as possible */
2263 while (eqcr->available && frames_to_send--) {
2264 eq->fqid = fq[sent]->fqid_le;
2265 eq->fd.opaque_addr = fd->opaque_addr;
2266 eq->fd.addr = cpu_to_be40(fd->addr);
2267 eq->fd.status = cpu_to_be32(fd->status);
2268 eq->fd.opaque = cpu_to_be32(fd->opaque);
2270 eq = (void *)((unsigned long)(eq + 1) &
2271 (~(unsigned long)(QM_EQCR_SIZE << 6)));
2278 /* In order for flushes to complete faster, all lines are recorded in
2282 for (i = 0; i < sent; i++) {
2283 eq->__dont_write_directly__verb =
2284 QM_EQCR_VERB_CMD_ENQUEUE | eqcr->vbit;
2286 eq = (void *)((unsigned long)(eq + 1) &
2287 (~(unsigned long)(QM_EQCR_SIZE << 6)));
2288 if (unlikely((prev_eq + 1) != eq))
2289 eqcr->vbit ^= QM_EQCR_VERB_VBIT;
2292 /* We need to flush all the lines but without load/store operations
2296 for (i = 0; i < sent; i++) {
2298 eq = (void *)((unsigned long)(eq + 1) &
2299 (~(unsigned long)(QM_EQCR_SIZE << 6)));
2301 /* Update cursor for the next call */
2306 int qman_enqueue_orp(struct qman_fq *fq, const struct qm_fd *fd, u32 flags,
2307 struct qman_fq *orp, u16 orp_seqnum)
2309 struct qman_portal *p = get_affine_portal();
2310 struct qm_eqcr_entry *eq;
2312 eq = try_p_eq_start(p, fq, fd, flags);
2315 /* Process ORP-specifics here */
2316 if (flags & QMAN_ENQUEUE_FLAG_NLIS)
2317 orp_seqnum |= QM_EQCR_SEQNUM_NLIS;
2319 orp_seqnum &= ~QM_EQCR_SEQNUM_NLIS;
2320 if (flags & QMAN_ENQUEUE_FLAG_NESN)
2321 orp_seqnum |= QM_EQCR_SEQNUM_NESN;
2323 /* No need to check 4 QMAN_ENQUEUE_FLAG_HOLE */
2324 orp_seqnum &= ~QM_EQCR_SEQNUM_NESN;
2326 eq->seqnum = cpu_to_be16(orp_seqnum);
2327 eq->orp = cpu_to_be32(orp->fqid);
2328 /* Note: QM_EQCR_VERB_INTERRUPT == QMAN_ENQUEUE_FLAG_WAIT_SYNC */
2329 qm_eqcr_pvb_commit(&p->p, QM_EQCR_VERB_ORP |
2330 ((flags & (QMAN_ENQUEUE_FLAG_HOLE | QMAN_ENQUEUE_FLAG_NESN)) ?
2331 0 : QM_EQCR_VERB_CMD_ENQUEUE) |
2332 (flags & (QM_EQCR_VERB_COLOUR_MASK | QM_EQCR_VERB_INTERRUPT)));
2337 int qman_modify_cgr(struct qman_cgr *cgr, u32 flags,
2338 struct qm_mcc_initcgr *opts)
2340 struct qm_mc_command *mcc;
2341 struct qm_mc_result *mcr;
2342 struct qman_portal *p = get_affine_portal();
2345 u8 verb = QM_MCC_VERB_MODIFYCGR;
2347 mcc = qm_mc_start(&p->p);
2349 mcc->initcgr = *opts;
2350 mcc->initcgr.we_mask = cpu_to_be16(mcc->initcgr.we_mask);
2351 mcc->initcgr.cgr.wr_parm_g.word =
2352 cpu_to_be32(mcc->initcgr.cgr.wr_parm_g.word);
2353 mcc->initcgr.cgr.wr_parm_y.word =
2354 cpu_to_be32(mcc->initcgr.cgr.wr_parm_y.word);
2355 mcc->initcgr.cgr.wr_parm_r.word =
2356 cpu_to_be32(mcc->initcgr.cgr.wr_parm_r.word);
2357 mcc->initcgr.cgr.cscn_targ = cpu_to_be32(mcc->initcgr.cgr.cscn_targ);
2358 mcc->initcgr.cgr.__cs_thres = cpu_to_be16(mcc->initcgr.cgr.__cs_thres);
2360 mcc->initcgr.cgid = cgr->cgrid;
2361 if (flags & QMAN_CGR_FLAG_USE_INIT)
2362 verb = QM_MCC_VERB_INITCGR;
2363 qm_mc_commit(&p->p, verb);
2364 while (!(mcr = qm_mc_result(&p->p)))
2367 DPAA_ASSERT((mcr->verb & QM_MCR_VERB_MASK) == verb);
2369 return (res == QM_MCR_RESULT_OK) ? 0 : -EIO;
2372 #define TARG_MASK(n) (0x80000000 >> (n->config->channel - \
2373 QM_CHANNEL_SWPORTAL0))
2374 #define TARG_DCP_MASK(n) (0x80000000 >> (10 + n))
2375 #define PORTAL_IDX(n) (n->config->channel - QM_CHANNEL_SWPORTAL0)
2377 int qman_create_cgr(struct qman_cgr *cgr, u32 flags,
2378 struct qm_mcc_initcgr *opts)
2380 struct qm_mcr_querycgr cgr_state;
2381 struct qm_mcc_initcgr local_opts;
2383 struct qman_portal *p;
2385 /* We have to check that the provided CGRID is within the limits of the
2386 * data-structures, for obvious reasons. However we'll let h/w take
2387 * care of determining whether it's within the limits of what exists on
2390 if (cgr->cgrid >= __CGR_NUM)
2393 p = get_affine_portal();
2395 memset(&local_opts, 0, sizeof(struct qm_mcc_initcgr));
2396 cgr->chan = p->config->channel;
2397 spin_lock(&p->cgr_lock);
2399 /* if no opts specified, just add it to the list */
2403 ret = qman_query_cgr(cgr, &cgr_state);
2408 if ((qman_ip_rev & 0xFF00) >= QMAN_REV30)
2409 local_opts.cgr.cscn_targ_upd_ctrl =
2410 QM_CGR_TARG_UDP_CTRL_WRITE_BIT | PORTAL_IDX(p);
2412 /* Overwrite TARG */
2413 local_opts.cgr.cscn_targ = cgr_state.cgr.cscn_targ |
2415 local_opts.we_mask |= QM_CGR_WE_CSCN_TARG;
2417 /* send init if flags indicate so */
2418 if (opts && (flags & QMAN_CGR_FLAG_USE_INIT))
2419 ret = qman_modify_cgr(cgr, QMAN_CGR_FLAG_USE_INIT, &local_opts);
2421 ret = qman_modify_cgr(cgr, 0, &local_opts);
2425 list_add(&cgr->node, &p->cgr_cbs);
2427 /* Determine if newly added object requires its callback to be called */
2428 ret = qman_query_cgr(cgr, &cgr_state);
2430 /* we can't go back, so proceed and return success, but screen
2431 * and wail to the log file.
2433 pr_crit("CGR HW state partially modified\n");
2437 if (cgr->cb && cgr_state.cgr.cscn_en && qman_cgrs_get(&p->cgrs[1],
2441 spin_unlock(&p->cgr_lock);
2445 int qman_create_cgr_to_dcp(struct qman_cgr *cgr, u32 flags, u16 dcp_portal,
2446 struct qm_mcc_initcgr *opts)
2448 struct qm_mcc_initcgr local_opts;
2449 struct qm_mcr_querycgr cgr_state;
2452 if ((qman_ip_rev & 0xFF00) < QMAN_REV30) {
2453 pr_warn("QMan version doesn't support CSCN => DCP portal\n");
2456 /* We have to check that the provided CGRID is within the limits of the
2457 * data-structures, for obvious reasons. However we'll let h/w take
2458 * care of determining whether it's within the limits of what exists on
2461 if (cgr->cgrid >= __CGR_NUM)
2464 ret = qman_query_cgr(cgr, &cgr_state);
2468 memset(&local_opts, 0, sizeof(struct qm_mcc_initcgr));
2472 if ((qman_ip_rev & 0xFF00) >= QMAN_REV30)
2473 local_opts.cgr.cscn_targ_upd_ctrl =
2474 QM_CGR_TARG_UDP_CTRL_WRITE_BIT |
2475 QM_CGR_TARG_UDP_CTRL_DCP | dcp_portal;
2477 local_opts.cgr.cscn_targ = cgr_state.cgr.cscn_targ |
2478 TARG_DCP_MASK(dcp_portal);
2479 local_opts.we_mask |= QM_CGR_WE_CSCN_TARG;
2481 /* send init if flags indicate so */
2482 if (opts && (flags & QMAN_CGR_FLAG_USE_INIT))
2483 ret = qman_modify_cgr(cgr, QMAN_CGR_FLAG_USE_INIT,
2486 ret = qman_modify_cgr(cgr, 0, &local_opts);
2491 int qman_delete_cgr(struct qman_cgr *cgr)
2493 struct qm_mcr_querycgr cgr_state;
2494 struct qm_mcc_initcgr local_opts;
2497 struct qman_portal *p = get_affine_portal();
2499 if (cgr->chan != p->config->channel) {
2500 pr_crit("Attempting to delete cgr from different portal than"
2501 " it was create: create 0x%x, delete 0x%x\n",
2502 cgr->chan, p->config->channel);
2506 memset(&local_opts, 0, sizeof(struct qm_mcc_initcgr));
2507 spin_lock(&p->cgr_lock);
2508 list_del(&cgr->node);
2510 * If there are no other CGR objects for this CGRID in the list,
2511 * update CSCN_TARG accordingly
2513 list_for_each_entry(i, &p->cgr_cbs, node)
2514 if ((i->cgrid == cgr->cgrid) && i->cb)
2516 ret = qman_query_cgr(cgr, &cgr_state);
2518 /* add back to the list */
2519 list_add(&cgr->node, &p->cgr_cbs);
2522 /* Overwrite TARG */
2523 local_opts.we_mask = QM_CGR_WE_CSCN_TARG;
2524 if ((qman_ip_rev & 0xFF00) >= QMAN_REV30)
2525 local_opts.cgr.cscn_targ_upd_ctrl = PORTAL_IDX(p);
2527 local_opts.cgr.cscn_targ = cgr_state.cgr.cscn_targ &
2529 ret = qman_modify_cgr(cgr, 0, &local_opts);
2531 /* add back to the list */
2532 list_add(&cgr->node, &p->cgr_cbs);
2534 spin_unlock(&p->cgr_lock);
2539 int qman_shutdown_fq(u32 fqid)
2541 struct qman_portal *p;
2542 struct qm_portal *low_p;
2543 struct qm_mc_command *mcc;
2544 struct qm_mc_result *mcr;
2546 int orl_empty, fq_empty, drain = 0;
2551 p = get_affine_portal();
2554 /* Determine the state of the FQID */
2555 mcc = qm_mc_start(low_p);
2556 mcc->queryfq_np.fqid = cpu_to_be32(fqid);
2557 qm_mc_commit(low_p, QM_MCC_VERB_QUERYFQ_NP);
2558 while (!(mcr = qm_mc_result(low_p)))
2560 DPAA_ASSERT((mcr->verb & QM_MCR_VERB_MASK) == QM_MCR_VERB_QUERYFQ_NP);
2561 state = mcr->queryfq_np.state & QM_MCR_NP_STATE_MASK;
2562 if (state == QM_MCR_NP_STATE_OOS)
2563 return 0; /* Already OOS, no need to do anymore checks */
2565 /* Query which channel the FQ is using */
2566 mcc = qm_mc_start(low_p);
2567 mcc->queryfq.fqid = cpu_to_be32(fqid);
2568 qm_mc_commit(low_p, QM_MCC_VERB_QUERYFQ);
2569 while (!(mcr = qm_mc_result(low_p)))
2571 DPAA_ASSERT((mcr->verb & QM_MCR_VERB_MASK) == QM_MCR_VERB_QUERYFQ);
2573 /* Need to store these since the MCR gets reused */
2574 dest_wq = be16_to_cpu(mcr->queryfq.fqd.dest_wq);
2575 channel = dest_wq & 0x7;
2579 case QM_MCR_NP_STATE_TEN_SCHED:
2580 case QM_MCR_NP_STATE_TRU_SCHED:
2581 case QM_MCR_NP_STATE_ACTIVE:
2582 case QM_MCR_NP_STATE_PARKED:
2584 mcc = qm_mc_start(low_p);
2585 mcc->alterfq.fqid = cpu_to_be32(fqid);
2586 qm_mc_commit(low_p, QM_MCC_VERB_ALTER_RETIRE);
2587 while (!(mcr = qm_mc_result(low_p)))
2589 DPAA_ASSERT((mcr->verb & QM_MCR_VERB_MASK) ==
2590 QM_MCR_VERB_ALTER_RETIRE);
2591 result = mcr->result; /* Make a copy as we reuse MCR below */
2593 if (result == QM_MCR_RESULT_PENDING) {
2594 /* Need to wait for the FQRN in the message ring, which
2595 * will only occur once the FQ has been drained. In
2596 * order for the FQ to drain the portal needs to be set
2597 * to dequeue from the channel the FQ is scheduled on
2599 const struct qm_mr_entry *msg;
2600 const struct qm_dqrr_entry *dqrr = NULL;
2602 __maybe_unused u16 dequeue_wq = 0;
2604 /* Flag that we need to drain FQ */
2607 if (channel >= qm_channel_pool1 &&
2608 channel < (u16)(qm_channel_pool1 + 15)) {
2609 /* Pool channel, enable the bit in the portal */
2610 dequeue_wq = (channel -
2611 qm_channel_pool1 + 1) << 4 | wq;
2612 } else if (channel < qm_channel_pool1) {
2613 /* Dedicated channel */
2616 pr_info("Cannot recover FQ 0x%x,"
2617 " it is scheduled on channel 0x%x",
2621 /* Set the sdqcr to drain this channel */
2622 if (channel < qm_channel_pool1)
2623 qm_dqrr_sdqcr_set(low_p,
2624 QM_SDQCR_TYPE_ACTIVE |
2625 QM_SDQCR_CHANNELS_DEDICATED);
2627 qm_dqrr_sdqcr_set(low_p,
2628 QM_SDQCR_TYPE_ACTIVE |
2629 QM_SDQCR_CHANNELS_POOL_CONV
2631 while (!found_fqrn) {
2632 /* Keep draining DQRR while checking the MR*/
2633 qm_dqrr_pvb_update(low_p);
2634 dqrr = qm_dqrr_current(low_p);
2636 qm_dqrr_cdc_consume_1ptr(
2638 qm_dqrr_pvb_update(low_p);
2639 qm_dqrr_next(low_p);
2640 dqrr = qm_dqrr_current(low_p);
2642 /* Process message ring too */
2643 qm_mr_pvb_update(low_p);
2644 msg = qm_mr_current(low_p);
2647 QM_MR_VERB_TYPE_MASK)
2651 qm_mr_cci_consume_to_current(low_p);
2652 qm_mr_pvb_update(low_p);
2653 msg = qm_mr_current(low_p);
2658 if (result != QM_MCR_RESULT_OK &&
2659 result != QM_MCR_RESULT_PENDING) {
2661 pr_err("qman_retire_fq failed on FQ 0x%x,"
2662 " result=0x%x\n", fqid, result);
2665 if (!(mcr->alterfq.fqs & QM_MCR_FQS_ORLPRESENT)) {
2666 /* ORL had no entries, no need to wait until the
2671 /* Retirement succeeded, check to see if FQ needs
2674 if (drain || mcr->alterfq.fqs & QM_MCR_FQS_NOTEMPTY) {
2675 /* FQ is Not Empty, drain using volatile DQ commands */
2678 const struct qm_dqrr_entry *dqrr = NULL;
2679 u32 vdqcr = fqid | QM_VDQCR_NUMFRAMES_SET(3);
2681 qm_dqrr_vdqcr_set(low_p, vdqcr);
2683 /* Wait for a dequeue to occur */
2684 while (dqrr == NULL) {
2685 qm_dqrr_pvb_update(low_p);
2686 dqrr = qm_dqrr_current(low_p);
2690 /* Process the dequeues, making sure to
2691 * empty the ring completely.
2694 if (dqrr->fqid == fqid &&
2695 dqrr->stat & QM_DQRR_STAT_FQ_EMPTY)
2697 qm_dqrr_cdc_consume_1ptr(low_p,
2699 qm_dqrr_pvb_update(low_p);
2700 qm_dqrr_next(low_p);
2701 dqrr = qm_dqrr_current(low_p);
2703 } while (fq_empty == 0);
2705 qm_dqrr_sdqcr_set(low_p, 0);
2707 /* Wait for the ORL to have been completely drained */
2708 while (orl_empty == 0) {
2709 const struct qm_mr_entry *msg;
2711 qm_mr_pvb_update(low_p);
2712 msg = qm_mr_current(low_p);
2714 if ((msg->verb & QM_MR_VERB_TYPE_MASK) ==
2718 qm_mr_cci_consume_to_current(low_p);
2719 qm_mr_pvb_update(low_p);
2720 msg = qm_mr_current(low_p);
2724 mcc = qm_mc_start(low_p);
2725 mcc->alterfq.fqid = cpu_to_be32(fqid);
2726 qm_mc_commit(low_p, QM_MCC_VERB_ALTER_OOS);
2727 while (!(mcr = qm_mc_result(low_p)))
2729 DPAA_ASSERT((mcr->verb & QM_MCR_VERB_MASK) ==
2730 QM_MCR_VERB_ALTER_OOS);
2731 if (mcr->result != QM_MCR_RESULT_OK) {
2733 "OOS after drain Failed on FQID 0x%x, result 0x%x\n",
2739 case QM_MCR_NP_STATE_RETIRED:
2740 /* Send OOS Command */
2741 mcc = qm_mc_start(low_p);
2742 mcc->alterfq.fqid = cpu_to_be32(fqid);
2743 qm_mc_commit(low_p, QM_MCC_VERB_ALTER_OOS);
2744 while (!(mcr = qm_mc_result(low_p)))
2746 DPAA_ASSERT((mcr->verb & QM_MCR_VERB_MASK) ==
2747 QM_MCR_VERB_ALTER_OOS);
2749 pr_err("OOS Failed on FQID 0x%x\n", fqid);