2 * Copyright (c) 2012-2016 Solarflare Communications Inc.
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions are met:
8 * 1. Redistributions of source code must retain the above copyright notice,
9 * this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright notice,
11 * this list of conditions and the following disclaimer in the documentation
12 * and/or other materials provided with the distribution.
14 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
15 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
16 * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
17 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
18 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
19 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
20 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
21 * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
22 * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
23 * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE,
24 * EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
26 * The views and conclusions contained in the software and documentation are
27 * those of the authors and should not be interpreted as representing official
28 * policies, either expressed or implied, of the FreeBSD Project.
33 #if EFSYS_OPT_MON_STATS
37 #if EFSYS_OPT_HUNTINGTON || EFSYS_OPT_MEDFORD
40 #define EFX_EV_QSTAT_INCR(_eep, _stat) \
42 (_eep)->ee_stat[_stat]++; \
43 _NOTE(CONSTANTCONDITION) \
46 #define EFX_EV_QSTAT_INCR(_eep, _stat)
50 * Non-interrupting event queue requires interrrupting event queue to
51 * refer to for wake-up events even if wake ups are never used.
52 * It could be even non-allocated event queue.
54 #define EFX_EF10_ALWAYS_INTERRUPTING_EVQ_INDEX (0)
56 static __checkReturn boolean_t
59 __in efx_qword_t *eqp,
60 __in const efx_ev_callbacks_t *eecp,
63 static __checkReturn boolean_t
66 __in efx_qword_t *eqp,
67 __in const efx_ev_callbacks_t *eecp,
70 static __checkReturn boolean_t
73 __in efx_qword_t *eqp,
74 __in const efx_ev_callbacks_t *eecp,
77 static __checkReturn boolean_t
80 __in efx_qword_t *eqp,
81 __in const efx_ev_callbacks_t *eecp,
84 static __checkReturn boolean_t
87 __in efx_qword_t *eqp,
88 __in const efx_ev_callbacks_t *eecp,
92 static __checkReturn efx_rc_t
95 __in uint32_t instance,
97 __in uint32_t timer_ns)
100 uint8_t payload[MAX(MC_CMD_SET_EVQ_TMR_IN_LEN,
101 MC_CMD_SET_EVQ_TMR_OUT_LEN)];
104 (void) memset(payload, 0, sizeof (payload));
105 req.emr_cmd = MC_CMD_SET_EVQ_TMR;
106 req.emr_in_buf = payload;
107 req.emr_in_length = MC_CMD_SET_EVQ_TMR_IN_LEN;
108 req.emr_out_buf = payload;
109 req.emr_out_length = MC_CMD_SET_EVQ_TMR_OUT_LEN;
111 MCDI_IN_SET_DWORD(req, SET_EVQ_TMR_IN_INSTANCE, instance);
112 MCDI_IN_SET_DWORD(req, SET_EVQ_TMR_IN_TMR_LOAD_REQ_NS, timer_ns);
113 MCDI_IN_SET_DWORD(req, SET_EVQ_TMR_IN_TMR_RELOAD_REQ_NS, timer_ns);
114 MCDI_IN_SET_DWORD(req, SET_EVQ_TMR_IN_TMR_MODE, mode);
116 efx_mcdi_execute(enp, &req);
118 if (req.emr_rc != 0) {
123 if (req.emr_out_length_used < MC_CMD_SET_EVQ_TMR_OUT_LEN) {
133 EFSYS_PROBE1(fail1, efx_rc_t, rc);
138 static __checkReturn efx_rc_t
141 __in unsigned int instance,
142 __in efsys_mem_t *esmp,
147 __in boolean_t low_latency)
151 MAX(MC_CMD_INIT_EVQ_IN_LEN(EFX_EVQ_NBUFS(EFX_EVQ_MAXNEVS)),
152 MC_CMD_INIT_EVQ_OUT_LEN)];
153 efx_qword_t *dma_addr;
157 boolean_t interrupting;
161 npages = EFX_EVQ_NBUFS(nevs);
162 if (MC_CMD_INIT_EVQ_IN_LEN(npages) > MC_CMD_INIT_EVQ_IN_LENMAX) {
167 (void) memset(payload, 0, sizeof (payload));
168 req.emr_cmd = MC_CMD_INIT_EVQ;
169 req.emr_in_buf = payload;
170 req.emr_in_length = MC_CMD_INIT_EVQ_IN_LEN(npages);
171 req.emr_out_buf = payload;
172 req.emr_out_length = MC_CMD_INIT_EVQ_OUT_LEN;
174 MCDI_IN_SET_DWORD(req, INIT_EVQ_IN_SIZE, nevs);
175 MCDI_IN_SET_DWORD(req, INIT_EVQ_IN_INSTANCE, instance);
176 MCDI_IN_SET_DWORD(req, INIT_EVQ_IN_IRQ_NUM, irq);
178 interrupting = ((flags & EFX_EVQ_FLAGS_NOTIFY_MASK) ==
179 EFX_EVQ_FLAGS_NOTIFY_INTERRUPT);
182 * On Huntington RX and TX event batching can only be requested together
183 * (even if the datapath firmware doesn't actually support RX
184 * batching). If event cut through is enabled no RX batching will occur.
186 * So always enable RX and TX event batching, and enable event cut
187 * through if we want low latency operation.
189 switch (flags & EFX_EVQ_FLAGS_TYPE_MASK) {
190 case EFX_EVQ_FLAGS_TYPE_AUTO:
191 ev_cut_through = low_latency ? 1 : 0;
193 case EFX_EVQ_FLAGS_TYPE_THROUGHPUT:
196 case EFX_EVQ_FLAGS_TYPE_LOW_LATENCY:
203 MCDI_IN_POPULATE_DWORD_6(req, INIT_EVQ_IN_FLAGS,
204 INIT_EVQ_IN_FLAG_INTERRUPTING, interrupting,
205 INIT_EVQ_IN_FLAG_RPTR_DOS, 0,
206 INIT_EVQ_IN_FLAG_INT_ARMD, 0,
207 INIT_EVQ_IN_FLAG_CUT_THRU, ev_cut_through,
208 INIT_EVQ_IN_FLAG_RX_MERGE, 1,
209 INIT_EVQ_IN_FLAG_TX_MERGE, 1);
211 /* If the value is zero then disable the timer */
213 MCDI_IN_SET_DWORD(req, INIT_EVQ_IN_TMR_MODE,
214 MC_CMD_INIT_EVQ_IN_TMR_MODE_DIS);
215 MCDI_IN_SET_DWORD(req, INIT_EVQ_IN_TMR_LOAD, 0);
216 MCDI_IN_SET_DWORD(req, INIT_EVQ_IN_TMR_RELOAD, 0);
220 if ((rc = efx_ev_usecs_to_ticks(enp, us, &ticks)) != 0)
223 MCDI_IN_SET_DWORD(req, INIT_EVQ_IN_TMR_MODE,
224 MC_CMD_INIT_EVQ_IN_TMR_INT_HLDOFF);
225 MCDI_IN_SET_DWORD(req, INIT_EVQ_IN_TMR_LOAD, ticks);
226 MCDI_IN_SET_DWORD(req, INIT_EVQ_IN_TMR_RELOAD, ticks);
229 MCDI_IN_SET_DWORD(req, INIT_EVQ_IN_COUNT_MODE,
230 MC_CMD_INIT_EVQ_IN_COUNT_MODE_DIS);
231 MCDI_IN_SET_DWORD(req, INIT_EVQ_IN_COUNT_THRSHLD, 0);
233 dma_addr = MCDI_IN2(req, efx_qword_t, INIT_EVQ_IN_DMA_ADDR);
234 addr = EFSYS_MEM_ADDR(esmp);
236 for (i = 0; i < npages; i++) {
237 EFX_POPULATE_QWORD_2(*dma_addr,
238 EFX_DWORD_1, (uint32_t)(addr >> 32),
239 EFX_DWORD_0, (uint32_t)(addr & 0xffffffff));
242 addr += EFX_BUF_SIZE;
245 efx_mcdi_execute(enp, &req);
247 if (req.emr_rc != 0) {
252 if (req.emr_out_length_used < MC_CMD_INIT_EVQ_OUT_LEN) {
257 /* NOTE: ignore the returned IRQ param as firmware does not set it. */
270 EFSYS_PROBE1(fail1, efx_rc_t, rc);
276 static __checkReturn efx_rc_t
277 efx_mcdi_init_evq_v2(
279 __in unsigned int instance,
280 __in efsys_mem_t *esmp,
288 MAX(MC_CMD_INIT_EVQ_V2_IN_LEN(EFX_EVQ_NBUFS(EFX_EVQ_MAXNEVS)),
289 MC_CMD_INIT_EVQ_V2_OUT_LEN)];
290 boolean_t interrupting;
291 unsigned int evq_type;
292 efx_qword_t *dma_addr;
298 npages = EFX_EVQ_NBUFS(nevs);
299 if (MC_CMD_INIT_EVQ_V2_IN_LEN(npages) > MC_CMD_INIT_EVQ_V2_IN_LENMAX) {
304 (void) memset(payload, 0, sizeof (payload));
305 req.emr_cmd = MC_CMD_INIT_EVQ;
306 req.emr_in_buf = payload;
307 req.emr_in_length = MC_CMD_INIT_EVQ_V2_IN_LEN(npages);
308 req.emr_out_buf = payload;
309 req.emr_out_length = MC_CMD_INIT_EVQ_V2_OUT_LEN;
311 MCDI_IN_SET_DWORD(req, INIT_EVQ_V2_IN_SIZE, nevs);
312 MCDI_IN_SET_DWORD(req, INIT_EVQ_V2_IN_INSTANCE, instance);
313 MCDI_IN_SET_DWORD(req, INIT_EVQ_V2_IN_IRQ_NUM, irq);
315 interrupting = ((flags & EFX_EVQ_FLAGS_NOTIFY_MASK) ==
316 EFX_EVQ_FLAGS_NOTIFY_INTERRUPT);
318 switch (flags & EFX_EVQ_FLAGS_TYPE_MASK) {
319 case EFX_EVQ_FLAGS_TYPE_AUTO:
320 evq_type = MC_CMD_INIT_EVQ_V2_IN_FLAG_TYPE_AUTO;
322 case EFX_EVQ_FLAGS_TYPE_THROUGHPUT:
323 evq_type = MC_CMD_INIT_EVQ_V2_IN_FLAG_TYPE_THROUGHPUT;
325 case EFX_EVQ_FLAGS_TYPE_LOW_LATENCY:
326 evq_type = MC_CMD_INIT_EVQ_V2_IN_FLAG_TYPE_LOW_LATENCY;
332 MCDI_IN_POPULATE_DWORD_4(req, INIT_EVQ_V2_IN_FLAGS,
333 INIT_EVQ_V2_IN_FLAG_INTERRUPTING, interrupting,
334 INIT_EVQ_V2_IN_FLAG_RPTR_DOS, 0,
335 INIT_EVQ_V2_IN_FLAG_INT_ARMD, 0,
336 INIT_EVQ_V2_IN_FLAG_TYPE, evq_type);
338 /* If the value is zero then disable the timer */
340 MCDI_IN_SET_DWORD(req, INIT_EVQ_V2_IN_TMR_MODE,
341 MC_CMD_INIT_EVQ_V2_IN_TMR_MODE_DIS);
342 MCDI_IN_SET_DWORD(req, INIT_EVQ_V2_IN_TMR_LOAD, 0);
343 MCDI_IN_SET_DWORD(req, INIT_EVQ_V2_IN_TMR_RELOAD, 0);
347 if ((rc = efx_ev_usecs_to_ticks(enp, us, &ticks)) != 0)
350 MCDI_IN_SET_DWORD(req, INIT_EVQ_V2_IN_TMR_MODE,
351 MC_CMD_INIT_EVQ_V2_IN_TMR_INT_HLDOFF);
352 MCDI_IN_SET_DWORD(req, INIT_EVQ_V2_IN_TMR_LOAD, ticks);
353 MCDI_IN_SET_DWORD(req, INIT_EVQ_V2_IN_TMR_RELOAD, ticks);
356 MCDI_IN_SET_DWORD(req, INIT_EVQ_V2_IN_COUNT_MODE,
357 MC_CMD_INIT_EVQ_V2_IN_COUNT_MODE_DIS);
358 MCDI_IN_SET_DWORD(req, INIT_EVQ_V2_IN_COUNT_THRSHLD, 0);
360 dma_addr = MCDI_IN2(req, efx_qword_t, INIT_EVQ_V2_IN_DMA_ADDR);
361 addr = EFSYS_MEM_ADDR(esmp);
363 for (i = 0; i < npages; i++) {
364 EFX_POPULATE_QWORD_2(*dma_addr,
365 EFX_DWORD_1, (uint32_t)(addr >> 32),
366 EFX_DWORD_0, (uint32_t)(addr & 0xffffffff));
369 addr += EFX_BUF_SIZE;
372 efx_mcdi_execute(enp, &req);
374 if (req.emr_rc != 0) {
379 if (req.emr_out_length_used < MC_CMD_INIT_EVQ_V2_OUT_LEN) {
384 /* NOTE: ignore the returned IRQ param as firmware does not set it. */
386 EFSYS_PROBE1(mcdi_evq_flags, uint32_t,
387 MCDI_OUT_DWORD(req, INIT_EVQ_V2_OUT_FLAGS));
400 EFSYS_PROBE1(fail1, efx_rc_t, rc);
405 static __checkReturn efx_rc_t
408 __in uint32_t instance)
411 uint8_t payload[MAX(MC_CMD_FINI_EVQ_IN_LEN,
412 MC_CMD_FINI_EVQ_OUT_LEN)];
415 (void) memset(payload, 0, sizeof (payload));
416 req.emr_cmd = MC_CMD_FINI_EVQ;
417 req.emr_in_buf = payload;
418 req.emr_in_length = MC_CMD_FINI_EVQ_IN_LEN;
419 req.emr_out_buf = payload;
420 req.emr_out_length = MC_CMD_FINI_EVQ_OUT_LEN;
422 MCDI_IN_SET_DWORD(req, FINI_EVQ_IN_INSTANCE, instance);
424 efx_mcdi_execute_quiet(enp, &req);
426 if (req.emr_rc != 0) {
435 * EALREADY is not an error, but indicates that the MC has rebooted and
436 * that the EVQ has already been destroyed.
439 EFSYS_PROBE1(fail1, efx_rc_t, rc);
446 __checkReturn efx_rc_t
450 _NOTE(ARGUNUSED(enp))
458 _NOTE(ARGUNUSED(enp))
461 __checkReturn efx_rc_t
464 __in unsigned int index,
465 __in efsys_mem_t *esmp,
472 efx_nic_cfg_t *encp = &(enp->en_nic_cfg);
476 _NOTE(ARGUNUSED(id)) /* buftbl id managed by MC */
477 EFX_STATIC_ASSERT(ISP2(EFX_EVQ_MAXNEVS));
478 EFX_STATIC_ASSERT(ISP2(EFX_EVQ_MINNEVS));
481 (ndescs < EFX_EVQ_MINNEVS) || (ndescs > EFX_EVQ_MAXNEVS)) {
486 if (index >= encp->enc_evq_limit) {
491 if (us > encp->enc_evq_timer_max_us) {
496 /* Set up the handler table */
497 eep->ee_rx = ef10_ev_rx;
498 eep->ee_tx = ef10_ev_tx;
499 eep->ee_driver = ef10_ev_driver;
500 eep->ee_drv_gen = ef10_ev_drv_gen;
501 eep->ee_mcdi = ef10_ev_mcdi;
503 /* Set up the event queue */
504 /* INIT_EVQ expects function-relative vector number */
505 if ((flags & EFX_EVQ_FLAGS_NOTIFY_MASK) ==
506 EFX_EVQ_FLAGS_NOTIFY_INTERRUPT) {
508 } else if (index == EFX_EF10_ALWAYS_INTERRUPTING_EVQ_INDEX) {
510 flags = (flags & ~EFX_EVQ_FLAGS_NOTIFY_MASK) |
511 EFX_EVQ_FLAGS_NOTIFY_INTERRUPT;
513 irq = EFX_EF10_ALWAYS_INTERRUPTING_EVQ_INDEX;
517 * Interrupts may be raised for events immediately after the queue is
518 * created. See bug58606.
521 if (encp->enc_init_evq_v2_supported) {
523 * On Medford the low latency license is required to enable RX
524 * and event cut through and to disable RX batching. If event
525 * queue type in flags is auto, we let the firmware decide the
526 * settings to use. If the adapter has a low latency license,
527 * it will choose the best settings for low latency, otherwise
528 * it will choose the best settings for throughput.
530 rc = efx_mcdi_init_evq_v2(enp, index, esmp, ndescs, irq, us,
536 * On Huntington we need to specify the settings to use.
537 * If event queue type in flags is auto, we favour throughput
538 * if the adapter is running virtualization supporting firmware
539 * (i.e. the full featured firmware variant)
540 * and latency otherwise. The Ethernet Virtual Bridging
541 * capability is used to make this decision. (Note though that
542 * the low latency firmware variant is also best for
543 * throughput and corresponding type should be specified
546 boolean_t low_latency = encp->enc_datapath_cap_evb ? 0 : 1;
547 rc = efx_mcdi_init_evq(enp, index, esmp, ndescs, irq, us, flags,
564 EFSYS_PROBE1(fail1, efx_rc_t, rc);
573 efx_nic_t *enp = eep->ee_enp;
575 EFSYS_ASSERT(enp->en_family == EFX_FAMILY_HUNTINGTON ||
576 enp->en_family == EFX_FAMILY_MEDFORD);
578 (void) efx_mcdi_fini_evq(enp, eep->ee_index);
581 __checkReturn efx_rc_t
584 __in unsigned int count)
586 efx_nic_t *enp = eep->ee_enp;
590 rptr = count & eep->ee_mask;
592 if (enp->en_nic_cfg.enc_bug35388_workaround) {
593 EFX_STATIC_ASSERT(EFX_EVQ_MINNEVS >
594 (1 << ERF_DD_EVQ_IND_RPTR_WIDTH));
595 EFX_STATIC_ASSERT(EFX_EVQ_MAXNEVS <
596 (1 << 2 * ERF_DD_EVQ_IND_RPTR_WIDTH));
598 EFX_POPULATE_DWORD_2(dword,
599 ERF_DD_EVQ_IND_RPTR_FLAGS,
600 EFE_DD_EVQ_IND_RPTR_FLAGS_HIGH,
602 (rptr >> ERF_DD_EVQ_IND_RPTR_WIDTH));
603 EFX_BAR_TBL_WRITED(enp, ER_DD_EVQ_INDIRECT, eep->ee_index,
606 EFX_POPULATE_DWORD_2(dword,
607 ERF_DD_EVQ_IND_RPTR_FLAGS,
608 EFE_DD_EVQ_IND_RPTR_FLAGS_LOW,
610 rptr & ((1 << ERF_DD_EVQ_IND_RPTR_WIDTH) - 1));
611 EFX_BAR_TBL_WRITED(enp, ER_DD_EVQ_INDIRECT, eep->ee_index,
614 EFX_POPULATE_DWORD_1(dword, ERF_DZ_EVQ_RPTR, rptr);
615 EFX_BAR_TBL_WRITED(enp, ER_DZ_EVQ_RPTR_REG, eep->ee_index,
622 static __checkReturn efx_rc_t
623 efx_mcdi_driver_event(
626 __in efx_qword_t data)
629 uint8_t payload[MAX(MC_CMD_DRIVER_EVENT_IN_LEN,
630 MC_CMD_DRIVER_EVENT_OUT_LEN)];
633 req.emr_cmd = MC_CMD_DRIVER_EVENT;
634 req.emr_in_buf = payload;
635 req.emr_in_length = MC_CMD_DRIVER_EVENT_IN_LEN;
636 req.emr_out_buf = payload;
637 req.emr_out_length = MC_CMD_DRIVER_EVENT_OUT_LEN;
639 MCDI_IN_SET_DWORD(req, DRIVER_EVENT_IN_EVQ, evq);
641 MCDI_IN_SET_DWORD(req, DRIVER_EVENT_IN_DATA_LO,
642 EFX_QWORD_FIELD(data, EFX_DWORD_0));
643 MCDI_IN_SET_DWORD(req, DRIVER_EVENT_IN_DATA_HI,
644 EFX_QWORD_FIELD(data, EFX_DWORD_1));
646 efx_mcdi_execute(enp, &req);
648 if (req.emr_rc != 0) {
656 EFSYS_PROBE1(fail1, efx_rc_t, rc);
666 efx_nic_t *enp = eep->ee_enp;
669 EFX_POPULATE_QWORD_3(event,
670 ESF_DZ_DRV_CODE, ESE_DZ_EV_CODE_DRV_GEN_EV,
671 ESF_DZ_DRV_SUB_CODE, 0,
672 ESF_DZ_DRV_SUB_DATA_DW0, (uint32_t)data);
674 (void) efx_mcdi_driver_event(enp, eep->ee_index, event);
677 __checkReturn efx_rc_t
680 __in unsigned int us)
682 efx_nic_t *enp = eep->ee_enp;
683 efx_nic_cfg_t *encp = &(enp->en_nic_cfg);
688 /* Check that hardware and MCDI use the same timer MODE values */
689 EFX_STATIC_ASSERT(FFE_CZ_TIMER_MODE_DIS ==
690 MC_CMD_SET_EVQ_TMR_IN_TIMER_MODE_DIS);
691 EFX_STATIC_ASSERT(FFE_CZ_TIMER_MODE_IMMED_START ==
692 MC_CMD_SET_EVQ_TMR_IN_TIMER_MODE_IMMED_START);
693 EFX_STATIC_ASSERT(FFE_CZ_TIMER_MODE_TRIG_START ==
694 MC_CMD_SET_EVQ_TMR_IN_TIMER_MODE_TRIG_START);
695 EFX_STATIC_ASSERT(FFE_CZ_TIMER_MODE_INT_HLDOFF ==
696 MC_CMD_SET_EVQ_TMR_IN_TIMER_MODE_INT_HLDOFF);
698 if (us > encp->enc_evq_timer_max_us) {
703 /* If the value is zero then disable the timer */
705 mode = FFE_CZ_TIMER_MODE_DIS;
707 mode = FFE_CZ_TIMER_MODE_INT_HLDOFF;
710 if (encp->enc_bug61265_workaround) {
711 uint32_t ns = us * 1000;
713 rc = efx_mcdi_set_evq_tmr(enp, eep->ee_index, mode, ns);
719 if ((rc = efx_ev_usecs_to_ticks(enp, us, &ticks)) != 0)
722 if (encp->enc_bug35388_workaround) {
723 EFX_POPULATE_DWORD_3(dword,
724 ERF_DD_EVQ_IND_TIMER_FLAGS,
725 EFE_DD_EVQ_IND_TIMER_FLAGS,
726 ERF_DD_EVQ_IND_TIMER_MODE, mode,
727 ERF_DD_EVQ_IND_TIMER_VAL, ticks);
728 EFX_BAR_TBL_WRITED(enp, ER_DD_EVQ_INDIRECT,
729 eep->ee_index, &dword, 0);
731 EFX_POPULATE_DWORD_2(dword,
732 ERF_DZ_TC_TIMER_MODE, mode,
733 ERF_DZ_TC_TIMER_VAL, ticks);
734 EFX_BAR_TBL_WRITED(enp, ER_DZ_EVQ_TMR_REG,
735 eep->ee_index, &dword, 0);
746 EFSYS_PROBE1(fail1, efx_rc_t, rc);
754 ef10_ev_qstats_update(
756 __inout_ecount(EV_NQSTATS) efsys_stat_t *stat)
760 for (id = 0; id < EV_NQSTATS; id++) {
761 efsys_stat_t *essp = &stat[id];
763 EFSYS_STAT_INCR(essp, eep->ee_stat[id]);
764 eep->ee_stat[id] = 0;
767 #endif /* EFSYS_OPT_QSTATS */
769 #if EFSYS_OPT_RX_PACKED_STREAM
771 static __checkReturn boolean_t
772 ef10_ev_rx_packed_stream(
774 __in efx_qword_t *eqp,
775 __in const efx_ev_callbacks_t *eecp,
779 uint32_t pkt_count_lbits;
781 boolean_t should_abort;
782 efx_evq_rxq_state_t *eersp;
783 unsigned int pkt_count;
784 unsigned int current_id;
785 boolean_t new_buffer;
787 pkt_count_lbits = EFX_QWORD_FIELD(*eqp, ESF_DZ_RX_DSC_PTR_LBITS);
788 label = EFX_QWORD_FIELD(*eqp, ESF_DZ_RX_QLABEL);
789 new_buffer = EFX_QWORD_FIELD(*eqp, ESF_DZ_RX_EV_ROTATE);
793 eersp = &eep->ee_rxq_state[label];
796 * RX_DSC_PTR_LBITS has least significant bits of the global
797 * (not per-buffer) packet counter. It is guaranteed that
798 * maximum number of completed packets fits in lbits-mask.
799 * So, modulo lbits-mask arithmetic should be used to calculate
800 * packet counter increment.
802 pkt_count = (pkt_count_lbits - eersp->eers_rx_stream_npackets) &
803 EFX_MASK32(ESF_DZ_RX_DSC_PTR_LBITS);
804 eersp->eers_rx_stream_npackets += pkt_count;
807 flags |= EFX_PKT_PACKED_STREAM_NEW_BUFFER;
808 eersp->eers_rx_packed_stream_credits++;
809 eersp->eers_rx_read_ptr++;
811 current_id = eersp->eers_rx_read_ptr & eersp->eers_rx_mask;
813 /* Check for errors that invalidate checksum and L3/L4 fields */
814 if (EFX_QWORD_FIELD(*eqp, ESF_DZ_RX_ECC_ERR) != 0) {
815 /* RX frame truncated (error flag is misnamed) */
816 EFX_EV_QSTAT_INCR(eep, EV_RX_FRM_TRUNC);
817 flags |= EFX_DISCARD;
820 if (EFX_QWORD_FIELD(*eqp, ESF_DZ_RX_ECRC_ERR) != 0) {
821 /* Bad Ethernet frame CRC */
822 EFX_EV_QSTAT_INCR(eep, EV_RX_ETH_CRC_ERR);
823 flags |= EFX_DISCARD;
827 if (EFX_QWORD_FIELD(*eqp, ESF_DZ_RX_PARSE_INCOMPLETE)) {
828 flags |= EFX_PKT_PACKED_STREAM_PARSE_INCOMPLETE;
832 if (EFX_QWORD_FIELD(*eqp, ESF_DZ_RX_IPCKSUM_ERR))
833 EFX_EV_QSTAT_INCR(eep, EV_RX_IPV4_HDR_CHKSUM_ERR);
835 if (EFX_QWORD_FIELD(*eqp, ESF_DZ_RX_TCPUDP_CKSUM_ERR))
836 EFX_EV_QSTAT_INCR(eep, EV_RX_TCP_UDP_CHKSUM_ERR);
839 /* If we're not discarding the packet then it is ok */
840 if (~flags & EFX_DISCARD)
841 EFX_EV_QSTAT_INCR(eep, EV_RX_OK);
843 EFSYS_ASSERT(eecp->eec_rx_ps != NULL);
844 should_abort = eecp->eec_rx_ps(arg, label, current_id, pkt_count,
847 return (should_abort);
850 #endif /* EFSYS_OPT_RX_PACKED_STREAM */
852 static __checkReturn boolean_t
855 __in efx_qword_t *eqp,
856 __in const efx_ev_callbacks_t *eecp,
859 efx_nic_t *enp = eep->ee_enp;
863 uint32_t eth_tag_class;
866 uint32_t next_read_lbits;
869 boolean_t should_abort;
870 efx_evq_rxq_state_t *eersp;
871 unsigned int desc_count;
872 unsigned int last_used_id;
874 EFX_EV_QSTAT_INCR(eep, EV_RX);
876 /* Discard events after RXQ/TXQ errors */
877 if (enp->en_reset_flags & (EFX_RESET_RXQ_ERR | EFX_RESET_TXQ_ERR))
880 /* Basic packet information */
881 label = EFX_QWORD_FIELD(*eqp, ESF_DZ_RX_QLABEL);
882 eersp = &eep->ee_rxq_state[label];
884 #if EFSYS_OPT_RX_PACKED_STREAM
886 * Packed stream events are very different,
887 * so handle them separately
889 if (eersp->eers_rx_packed_stream)
890 return (ef10_ev_rx_packed_stream(eep, eqp, eecp, arg));
893 size = EFX_QWORD_FIELD(*eqp, ESF_DZ_RX_BYTES);
894 next_read_lbits = EFX_QWORD_FIELD(*eqp, ESF_DZ_RX_DSC_PTR_LBITS);
895 eth_tag_class = EFX_QWORD_FIELD(*eqp, ESF_DZ_RX_ETH_TAG_CLASS);
896 mac_class = EFX_QWORD_FIELD(*eqp, ESF_DZ_RX_MAC_CLASS);
897 l3_class = EFX_QWORD_FIELD(*eqp, ESF_DZ_RX_L3_CLASS);
898 l4_class = EFX_QWORD_FIELD(*eqp, ESF_DZ_RX_L4_CLASS);
899 cont = EFX_QWORD_FIELD(*eqp, ESF_DZ_RX_CONT);
901 if (EFX_QWORD_FIELD(*eqp, ESF_DZ_RX_DROP_EVENT) != 0) {
902 /* Drop this event */
909 * This may be part of a scattered frame, or it may be a
910 * truncated frame if scatter is disabled on this RXQ.
911 * Overlength frames can be received if e.g. a VF is configured
912 * for 1500 MTU but connected to a port set to 9000 MTU
914 * FIXME: There is not yet any driver that supports scatter on
915 * Huntington. Scatter support is required for OSX.
917 flags |= EFX_PKT_CONT;
920 if (mac_class == ESE_DZ_MAC_CLASS_UCAST)
921 flags |= EFX_PKT_UNICAST;
923 /* Increment the count of descriptors read */
924 desc_count = (next_read_lbits - eersp->eers_rx_read_ptr) &
925 EFX_MASK32(ESF_DZ_RX_DSC_PTR_LBITS);
926 eersp->eers_rx_read_ptr += desc_count;
929 * FIXME: add error checking to make sure this a batched event.
930 * This could also be an aborted scatter, see Bug36629.
932 if (desc_count > 1) {
933 EFX_EV_QSTAT_INCR(eep, EV_RX_BATCH);
934 flags |= EFX_PKT_PREFIX_LEN;
937 /* Calculate the index of the last descriptor consumed */
938 last_used_id = (eersp->eers_rx_read_ptr - 1) & eersp->eers_rx_mask;
940 /* Check for errors that invalidate checksum and L3/L4 fields */
941 if (EFX_QWORD_FIELD(*eqp, ESF_DZ_RX_ECC_ERR) != 0) {
942 /* RX frame truncated (error flag is misnamed) */
943 EFX_EV_QSTAT_INCR(eep, EV_RX_FRM_TRUNC);
944 flags |= EFX_DISCARD;
947 if (EFX_QWORD_FIELD(*eqp, ESF_DZ_RX_ECRC_ERR) != 0) {
948 /* Bad Ethernet frame CRC */
949 EFX_EV_QSTAT_INCR(eep, EV_RX_ETH_CRC_ERR);
950 flags |= EFX_DISCARD;
953 if (EFX_QWORD_FIELD(*eqp, ESF_DZ_RX_PARSE_INCOMPLETE)) {
955 * Hardware parse failed, due to malformed headers
956 * or headers that are too long for the parser.
957 * Headers and checksums must be validated by the host.
959 /* TODO: EFX_EV_QSTAT_INCR(eep, EV_RX_PARSE_INCOMPLETE); */
963 if ((eth_tag_class == ESE_DZ_ETH_TAG_CLASS_VLAN1) ||
964 (eth_tag_class == ESE_DZ_ETH_TAG_CLASS_VLAN2)) {
965 flags |= EFX_PKT_VLAN_TAGGED;
969 case ESE_DZ_L3_CLASS_IP4:
970 case ESE_DZ_L3_CLASS_IP4_FRAG:
971 flags |= EFX_PKT_IPV4;
972 if (EFX_QWORD_FIELD(*eqp, ESF_DZ_RX_IPCKSUM_ERR)) {
973 EFX_EV_QSTAT_INCR(eep, EV_RX_IPV4_HDR_CHKSUM_ERR);
975 flags |= EFX_CKSUM_IPV4;
978 if (l4_class == ESE_DZ_L4_CLASS_TCP) {
979 EFX_EV_QSTAT_INCR(eep, EV_RX_TCP_IPV4);
980 flags |= EFX_PKT_TCP;
981 } else if (l4_class == ESE_DZ_L4_CLASS_UDP) {
982 EFX_EV_QSTAT_INCR(eep, EV_RX_UDP_IPV4);
983 flags |= EFX_PKT_UDP;
985 EFX_EV_QSTAT_INCR(eep, EV_RX_OTHER_IPV4);
989 case ESE_DZ_L3_CLASS_IP6:
990 case ESE_DZ_L3_CLASS_IP6_FRAG:
991 flags |= EFX_PKT_IPV6;
993 if (l4_class == ESE_DZ_L4_CLASS_TCP) {
994 EFX_EV_QSTAT_INCR(eep, EV_RX_TCP_IPV6);
995 flags |= EFX_PKT_TCP;
996 } else if (l4_class == ESE_DZ_L4_CLASS_UDP) {
997 EFX_EV_QSTAT_INCR(eep, EV_RX_UDP_IPV6);
998 flags |= EFX_PKT_UDP;
1000 EFX_EV_QSTAT_INCR(eep, EV_RX_OTHER_IPV6);
1005 EFX_EV_QSTAT_INCR(eep, EV_RX_NON_IP);
1009 if (flags & (EFX_PKT_TCP | EFX_PKT_UDP)) {
1010 if (EFX_QWORD_FIELD(*eqp, ESF_DZ_RX_TCPUDP_CKSUM_ERR)) {
1011 EFX_EV_QSTAT_INCR(eep, EV_RX_TCP_UDP_CHKSUM_ERR);
1013 flags |= EFX_CKSUM_TCPUDP;
1018 /* If we're not discarding the packet then it is ok */
1019 if (~flags & EFX_DISCARD)
1020 EFX_EV_QSTAT_INCR(eep, EV_RX_OK);
1022 EFSYS_ASSERT(eecp->eec_rx != NULL);
1023 should_abort = eecp->eec_rx(arg, label, last_used_id, size, flags);
1025 return (should_abort);
1028 static __checkReturn boolean_t
1030 __in efx_evq_t *eep,
1031 __in efx_qword_t *eqp,
1032 __in const efx_ev_callbacks_t *eecp,
1035 efx_nic_t *enp = eep->ee_enp;
1038 boolean_t should_abort;
1040 EFX_EV_QSTAT_INCR(eep, EV_TX);
1042 /* Discard events after RXQ/TXQ errors */
1043 if (enp->en_reset_flags & (EFX_RESET_RXQ_ERR | EFX_RESET_TXQ_ERR))
1046 if (EFX_QWORD_FIELD(*eqp, ESF_DZ_TX_DROP_EVENT) != 0) {
1047 /* Drop this event */
1051 /* Per-packet TX completion (was per-descriptor for Falcon/Siena) */
1052 id = EFX_QWORD_FIELD(*eqp, ESF_DZ_TX_DESCR_INDX);
1053 label = EFX_QWORD_FIELD(*eqp, ESF_DZ_TX_QLABEL);
1055 EFSYS_PROBE2(tx_complete, uint32_t, label, uint32_t, id);
1057 EFSYS_ASSERT(eecp->eec_tx != NULL);
1058 should_abort = eecp->eec_tx(arg, label, id);
1060 return (should_abort);
1063 static __checkReturn boolean_t
1065 __in efx_evq_t *eep,
1066 __in efx_qword_t *eqp,
1067 __in const efx_ev_callbacks_t *eecp,
1071 boolean_t should_abort;
1073 EFX_EV_QSTAT_INCR(eep, EV_DRIVER);
1074 should_abort = B_FALSE;
1076 code = EFX_QWORD_FIELD(*eqp, ESF_DZ_DRV_SUB_CODE);
1078 case ESE_DZ_DRV_TIMER_EV: {
1081 id = EFX_QWORD_FIELD(*eqp, ESF_DZ_DRV_TMR_ID);
1083 EFSYS_ASSERT(eecp->eec_timer != NULL);
1084 should_abort = eecp->eec_timer(arg, id);
1088 case ESE_DZ_DRV_WAKE_UP_EV: {
1091 id = EFX_QWORD_FIELD(*eqp, ESF_DZ_DRV_EVQ_ID);
1093 EFSYS_ASSERT(eecp->eec_wake_up != NULL);
1094 should_abort = eecp->eec_wake_up(arg, id);
1098 case ESE_DZ_DRV_START_UP_EV:
1099 EFSYS_ASSERT(eecp->eec_initialized != NULL);
1100 should_abort = eecp->eec_initialized(arg);
1104 EFSYS_PROBE3(bad_event, unsigned int, eep->ee_index,
1105 uint32_t, EFX_QWORD_FIELD(*eqp, EFX_DWORD_1),
1106 uint32_t, EFX_QWORD_FIELD(*eqp, EFX_DWORD_0));
1110 return (should_abort);
1113 static __checkReturn boolean_t
1115 __in efx_evq_t *eep,
1116 __in efx_qword_t *eqp,
1117 __in const efx_ev_callbacks_t *eecp,
1121 boolean_t should_abort;
1123 EFX_EV_QSTAT_INCR(eep, EV_DRV_GEN);
1124 should_abort = B_FALSE;
1126 data = EFX_QWORD_FIELD(*eqp, ESF_DZ_DRV_SUB_DATA_DW0);
1127 if (data >= ((uint32_t)1 << 16)) {
1128 EFSYS_PROBE3(bad_event, unsigned int, eep->ee_index,
1129 uint32_t, EFX_QWORD_FIELD(*eqp, EFX_DWORD_1),
1130 uint32_t, EFX_QWORD_FIELD(*eqp, EFX_DWORD_0));
1135 EFSYS_ASSERT(eecp->eec_software != NULL);
1136 should_abort = eecp->eec_software(arg, (uint16_t)data);
1138 return (should_abort);
1141 static __checkReturn boolean_t
1143 __in efx_evq_t *eep,
1144 __in efx_qword_t *eqp,
1145 __in const efx_ev_callbacks_t *eecp,
1148 efx_nic_t *enp = eep->ee_enp;
1150 boolean_t should_abort = B_FALSE;
1152 EFX_EV_QSTAT_INCR(eep, EV_MCDI_RESPONSE);
1154 code = EFX_QWORD_FIELD(*eqp, MCDI_EVENT_CODE);
1156 case MCDI_EVENT_CODE_BADSSERT:
1157 efx_mcdi_ev_death(enp, EINTR);
1160 case MCDI_EVENT_CODE_CMDDONE:
1161 efx_mcdi_ev_cpl(enp,
1162 MCDI_EV_FIELD(eqp, CMDDONE_SEQ),
1163 MCDI_EV_FIELD(eqp, CMDDONE_DATALEN),
1164 MCDI_EV_FIELD(eqp, CMDDONE_ERRNO));
1167 #if EFSYS_OPT_MCDI_PROXY_AUTH
1168 case MCDI_EVENT_CODE_PROXY_RESPONSE:
1170 * This event notifies a function that an authorization request
1171 * has been processed. If the request was authorized then the
1172 * function can now re-send the original MCDI request.
1173 * See SF-113652-SW "SR-IOV Proxied Network Access Control".
1175 efx_mcdi_ev_proxy_response(enp,
1176 MCDI_EV_FIELD(eqp, PROXY_RESPONSE_HANDLE),
1177 MCDI_EV_FIELD(eqp, PROXY_RESPONSE_RC));
1179 #endif /* EFSYS_OPT_MCDI_PROXY_AUTH */
1181 case MCDI_EVENT_CODE_LINKCHANGE: {
1182 efx_link_mode_t link_mode;
1184 ef10_phy_link_ev(enp, eqp, &link_mode);
1185 should_abort = eecp->eec_link_change(arg, link_mode);
1189 case MCDI_EVENT_CODE_SENSOREVT: {
1190 #if EFSYS_OPT_MON_STATS
1192 efx_mon_stat_value_t value;
1195 /* Decode monitor stat for MCDI sensor (if supported) */
1196 if ((rc = mcdi_mon_ev(enp, eqp, &id, &value)) == 0) {
1197 /* Report monitor stat change */
1198 should_abort = eecp->eec_monitor(arg, id, value);
1199 } else if (rc == ENOTSUP) {
1200 should_abort = eecp->eec_exception(arg,
1201 EFX_EXCEPTION_UNKNOWN_SENSOREVT,
1202 MCDI_EV_FIELD(eqp, DATA));
1204 EFSYS_ASSERT(rc == ENODEV); /* Wrong port */
1210 case MCDI_EVENT_CODE_SCHEDERR:
1211 /* Informational only */
1214 case MCDI_EVENT_CODE_REBOOT:
1215 /* Falcon/Siena only (should not been seen with Huntington). */
1216 efx_mcdi_ev_death(enp, EIO);
1219 case MCDI_EVENT_CODE_MC_REBOOT:
1220 /* MC_REBOOT event is used for Huntington (EF10) and later. */
1221 efx_mcdi_ev_death(enp, EIO);
1224 case MCDI_EVENT_CODE_MAC_STATS_DMA:
1225 #if EFSYS_OPT_MAC_STATS
1226 if (eecp->eec_mac_stats != NULL) {
1227 eecp->eec_mac_stats(arg,
1228 MCDI_EV_FIELD(eqp, MAC_STATS_DMA_GENERATION));
1233 case MCDI_EVENT_CODE_FWALERT: {
1234 uint32_t reason = MCDI_EV_FIELD(eqp, FWALERT_REASON);
1236 if (reason == MCDI_EVENT_FWALERT_REASON_SRAM_ACCESS)
1237 should_abort = eecp->eec_exception(arg,
1238 EFX_EXCEPTION_FWALERT_SRAM,
1239 MCDI_EV_FIELD(eqp, FWALERT_DATA));
1241 should_abort = eecp->eec_exception(arg,
1242 EFX_EXCEPTION_UNKNOWN_FWALERT,
1243 MCDI_EV_FIELD(eqp, DATA));
1247 case MCDI_EVENT_CODE_TX_ERR: {
1249 * After a TXQ error is detected, firmware sends a TX_ERR event.
1250 * This may be followed by TX completions (which we discard),
1251 * and then finally by a TX_FLUSH event. Firmware destroys the
1252 * TXQ automatically after sending the TX_FLUSH event.
1254 enp->en_reset_flags |= EFX_RESET_TXQ_ERR;
1256 EFSYS_PROBE2(tx_descq_err,
1257 uint32_t, EFX_QWORD_FIELD(*eqp, EFX_DWORD_1),
1258 uint32_t, EFX_QWORD_FIELD(*eqp, EFX_DWORD_0));
1260 /* Inform the driver that a reset is required. */
1261 eecp->eec_exception(arg, EFX_EXCEPTION_TX_ERROR,
1262 MCDI_EV_FIELD(eqp, TX_ERR_DATA));
1266 case MCDI_EVENT_CODE_TX_FLUSH: {
1267 uint32_t txq_index = MCDI_EV_FIELD(eqp, TX_FLUSH_TXQ);
1270 * EF10 firmware sends two TX_FLUSH events: one to the txq's
1271 * event queue, and one to evq 0 (with TX_FLUSH_TO_DRIVER set).
1272 * We want to wait for all completions, so ignore the events
1273 * with TX_FLUSH_TO_DRIVER.
1275 if (MCDI_EV_FIELD(eqp, TX_FLUSH_TO_DRIVER) != 0) {
1276 should_abort = B_FALSE;
1280 EFX_EV_QSTAT_INCR(eep, EV_DRIVER_TX_DESCQ_FLS_DONE);
1282 EFSYS_PROBE1(tx_descq_fls_done, uint32_t, txq_index);
1284 EFSYS_ASSERT(eecp->eec_txq_flush_done != NULL);
1285 should_abort = eecp->eec_txq_flush_done(arg, txq_index);
1289 case MCDI_EVENT_CODE_RX_ERR: {
1291 * After an RXQ error is detected, firmware sends an RX_ERR
1292 * event. This may be followed by RX events (which we discard),
1293 * and then finally by an RX_FLUSH event. Firmware destroys the
1294 * RXQ automatically after sending the RX_FLUSH event.
1296 enp->en_reset_flags |= EFX_RESET_RXQ_ERR;
1298 EFSYS_PROBE2(rx_descq_err,
1299 uint32_t, EFX_QWORD_FIELD(*eqp, EFX_DWORD_1),
1300 uint32_t, EFX_QWORD_FIELD(*eqp, EFX_DWORD_0));
1302 /* Inform the driver that a reset is required. */
1303 eecp->eec_exception(arg, EFX_EXCEPTION_RX_ERROR,
1304 MCDI_EV_FIELD(eqp, RX_ERR_DATA));
1308 case MCDI_EVENT_CODE_RX_FLUSH: {
1309 uint32_t rxq_index = MCDI_EV_FIELD(eqp, RX_FLUSH_RXQ);
1312 * EF10 firmware sends two RX_FLUSH events: one to the rxq's
1313 * event queue, and one to evq 0 (with RX_FLUSH_TO_DRIVER set).
1314 * We want to wait for all completions, so ignore the events
1315 * with RX_FLUSH_TO_DRIVER.
1317 if (MCDI_EV_FIELD(eqp, RX_FLUSH_TO_DRIVER) != 0) {
1318 should_abort = B_FALSE;
1322 EFX_EV_QSTAT_INCR(eep, EV_DRIVER_RX_DESCQ_FLS_DONE);
1324 EFSYS_PROBE1(rx_descq_fls_done, uint32_t, rxq_index);
1326 EFSYS_ASSERT(eecp->eec_rxq_flush_done != NULL);
1327 should_abort = eecp->eec_rxq_flush_done(arg, rxq_index);
1332 EFSYS_PROBE3(bad_event, unsigned int, eep->ee_index,
1333 uint32_t, EFX_QWORD_FIELD(*eqp, EFX_DWORD_1),
1334 uint32_t, EFX_QWORD_FIELD(*eqp, EFX_DWORD_0));
1338 return (should_abort);
1342 ef10_ev_rxlabel_init(
1343 __in efx_evq_t *eep,
1344 __in efx_rxq_t *erp,
1345 __in unsigned int label,
1346 __in efx_rxq_type_t type)
1348 efx_evq_rxq_state_t *eersp;
1349 #if EFSYS_OPT_RX_PACKED_STREAM
1350 boolean_t packed_stream = (type == EFX_RXQ_TYPE_PACKED_STREAM);
1353 _NOTE(ARGUNUSED(type))
1354 EFSYS_ASSERT3U(label, <, EFX_ARRAY_SIZE(eep->ee_rxq_state));
1355 eersp = &eep->ee_rxq_state[label];
1357 EFSYS_ASSERT3U(eersp->eers_rx_mask, ==, 0);
1359 #if EFSYS_OPT_RX_PACKED_STREAM
1361 * For packed stream modes, the very first event will
1362 * have a new buffer flag set, so it will be incremented,
1363 * yielding the correct pointer. That results in a simpler
1364 * code than trying to detect start-of-the-world condition
1365 * in the event handler.
1367 eersp->eers_rx_read_ptr = packed_stream ? ~0 : 0;
1369 eersp->eers_rx_read_ptr = 0;
1371 eersp->eers_rx_mask = erp->er_mask;
1372 #if EFSYS_OPT_RX_PACKED_STREAM
1373 eersp->eers_rx_stream_npackets = 0;
1374 eersp->eers_rx_packed_stream = packed_stream;
1375 if (packed_stream) {
1376 eersp->eers_rx_packed_stream_credits = (eep->ee_mask + 1) /
1377 EFX_DIV_ROUND_UP(EFX_RX_PACKED_STREAM_MEM_PER_CREDIT,
1378 EFX_RX_PACKED_STREAM_MIN_PACKET_SPACE);
1379 EFSYS_ASSERT3U(eersp->eers_rx_packed_stream_credits, !=, 0);
1381 * A single credit is allocated to the queue when it is started.
1382 * It is immediately spent by the first packet which has NEW
1383 * BUFFER flag set, though, but still we shall take into
1384 * account, as to not wrap around the maximum number of credits
1387 eersp->eers_rx_packed_stream_credits--;
1388 EFSYS_ASSERT3U(eersp->eers_rx_packed_stream_credits, <=,
1389 EFX_RX_PACKED_STREAM_MAX_CREDITS);
1395 ef10_ev_rxlabel_fini(
1396 __in efx_evq_t *eep,
1397 __in unsigned int label)
1399 efx_evq_rxq_state_t *eersp;
1401 EFSYS_ASSERT3U(label, <, EFX_ARRAY_SIZE(eep->ee_rxq_state));
1402 eersp = &eep->ee_rxq_state[label];
1404 EFSYS_ASSERT3U(eersp->eers_rx_mask, !=, 0);
1406 eersp->eers_rx_read_ptr = 0;
1407 eersp->eers_rx_mask = 0;
1408 #if EFSYS_OPT_RX_PACKED_STREAM
1409 eersp->eers_rx_stream_npackets = 0;
1410 eersp->eers_rx_packed_stream = B_FALSE;
1411 eersp->eers_rx_packed_stream_credits = 0;
1415 #endif /* EFSYS_OPT_HUNTINGTON || EFSYS_OPT_MEDFORD */