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
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19 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
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35 #if EFSYS_OPT_HUNTINGTON || EFSYS_OPT_MEDFORD
38 static __checkReturn efx_rc_t
42 __in uint32_t target_evq,
44 __in uint32_t instance,
45 __in efsys_mem_t *esmp,
46 __in boolean_t disable_scatter,
47 __in uint32_t ps_bufsize)
49 efx_nic_cfg_t *encp = &(enp->en_nic_cfg);
51 uint8_t payload[MAX(MC_CMD_INIT_RXQ_EXT_IN_LEN,
52 MC_CMD_INIT_RXQ_EXT_OUT_LEN)];
53 int npages = EFX_RXQ_NBUFS(size);
55 efx_qword_t *dma_addr;
59 boolean_t want_outer_classes;
61 EFSYS_ASSERT3U(size, <=, EFX_RXQ_MAXNDESCS);
64 dma_mode = MC_CMD_INIT_RXQ_EXT_IN_PACKED_STREAM;
66 dma_mode = MC_CMD_INIT_RXQ_EXT_IN_SINGLE_PACKET;
68 if (encp->enc_tunnel_encapsulations_supported != 0) {
70 * WANT_OUTER_CLASSES can only be specified on hardware which
71 * supports tunnel encapsulation offloads, even though it is
72 * effectively the behaviour the hardware gives.
74 * Also, on hardware which does support such offloads, older
75 * firmware rejects the flag if the offloads are not supported
76 * by the current firmware variant, which means this may fail if
77 * the capabilities are not updated when the firmware variant
78 * changes. This is not an issue on newer firmware, as it was
79 * changed in bug 69842 (v6.4.2.1007) to permit this flag to be
80 * specified on all firmware variants.
82 want_outer_classes = B_TRUE;
84 want_outer_classes = B_FALSE;
87 (void) memset(payload, 0, sizeof (payload));
88 req.emr_cmd = MC_CMD_INIT_RXQ;
89 req.emr_in_buf = payload;
90 req.emr_in_length = MC_CMD_INIT_RXQ_EXT_IN_LEN;
91 req.emr_out_buf = payload;
92 req.emr_out_length = MC_CMD_INIT_RXQ_EXT_OUT_LEN;
94 MCDI_IN_SET_DWORD(req, INIT_RXQ_EXT_IN_SIZE, size);
95 MCDI_IN_SET_DWORD(req, INIT_RXQ_EXT_IN_TARGET_EVQ, target_evq);
96 MCDI_IN_SET_DWORD(req, INIT_RXQ_EXT_IN_LABEL, label);
97 MCDI_IN_SET_DWORD(req, INIT_RXQ_EXT_IN_INSTANCE, instance);
98 MCDI_IN_POPULATE_DWORD_9(req, INIT_RXQ_EXT_IN_FLAGS,
99 INIT_RXQ_EXT_IN_FLAG_BUFF_MODE, 0,
100 INIT_RXQ_EXT_IN_FLAG_HDR_SPLIT, 0,
101 INIT_RXQ_EXT_IN_FLAG_TIMESTAMP, 0,
102 INIT_RXQ_EXT_IN_CRC_MODE, 0,
103 INIT_RXQ_EXT_IN_FLAG_PREFIX, 1,
104 INIT_RXQ_EXT_IN_FLAG_DISABLE_SCATTER, disable_scatter,
105 INIT_RXQ_EXT_IN_DMA_MODE,
107 INIT_RXQ_EXT_IN_PACKED_STREAM_BUFF_SIZE, ps_bufsize,
108 INIT_RXQ_EXT_IN_FLAG_WANT_OUTER_CLASSES, want_outer_classes);
109 MCDI_IN_SET_DWORD(req, INIT_RXQ_EXT_IN_OWNER_ID, 0);
110 MCDI_IN_SET_DWORD(req, INIT_RXQ_EXT_IN_PORT_ID, EVB_PORT_ID_ASSIGNED);
112 dma_addr = MCDI_IN2(req, efx_qword_t, INIT_RXQ_IN_DMA_ADDR);
113 addr = EFSYS_MEM_ADDR(esmp);
115 for (i = 0; i < npages; i++) {
116 EFX_POPULATE_QWORD_2(*dma_addr,
117 EFX_DWORD_1, (uint32_t)(addr >> 32),
118 EFX_DWORD_0, (uint32_t)(addr & 0xffffffff));
121 addr += EFX_BUF_SIZE;
124 efx_mcdi_execute(enp, &req);
126 if (req.emr_rc != 0) {
134 EFSYS_PROBE1(fail1, efx_rc_t, rc);
139 static __checkReturn efx_rc_t
142 __in uint32_t instance)
145 uint8_t payload[MAX(MC_CMD_FINI_RXQ_IN_LEN,
146 MC_CMD_FINI_RXQ_OUT_LEN)];
149 (void) memset(payload, 0, sizeof (payload));
150 req.emr_cmd = MC_CMD_FINI_RXQ;
151 req.emr_in_buf = payload;
152 req.emr_in_length = MC_CMD_FINI_RXQ_IN_LEN;
153 req.emr_out_buf = payload;
154 req.emr_out_length = MC_CMD_FINI_RXQ_OUT_LEN;
156 MCDI_IN_SET_DWORD(req, FINI_RXQ_IN_INSTANCE, instance);
158 efx_mcdi_execute_quiet(enp, &req);
160 if (req.emr_rc != 0) {
169 * EALREADY is not an error, but indicates that the MC has rebooted and
170 * that the RXQ has already been destroyed.
173 EFSYS_PROBE1(fail1, efx_rc_t, rc);
178 #if EFSYS_OPT_RX_SCALE
179 static __checkReturn efx_rc_t
180 efx_mcdi_rss_context_alloc(
182 __in efx_rx_scale_context_type_t type,
183 __in uint32_t num_queues,
184 __out uint32_t *rss_contextp)
187 uint8_t payload[MAX(MC_CMD_RSS_CONTEXT_ALLOC_IN_LEN,
188 MC_CMD_RSS_CONTEXT_ALLOC_OUT_LEN)];
189 uint32_t rss_context;
190 uint32_t context_type;
193 if (num_queues > EFX_MAXRSS) {
199 case EFX_RX_SCALE_EXCLUSIVE:
200 context_type = MC_CMD_RSS_CONTEXT_ALLOC_IN_TYPE_EXCLUSIVE;
202 case EFX_RX_SCALE_SHARED:
203 context_type = MC_CMD_RSS_CONTEXT_ALLOC_IN_TYPE_SHARED;
210 (void) memset(payload, 0, sizeof (payload));
211 req.emr_cmd = MC_CMD_RSS_CONTEXT_ALLOC;
212 req.emr_in_buf = payload;
213 req.emr_in_length = MC_CMD_RSS_CONTEXT_ALLOC_IN_LEN;
214 req.emr_out_buf = payload;
215 req.emr_out_length = MC_CMD_RSS_CONTEXT_ALLOC_OUT_LEN;
217 MCDI_IN_SET_DWORD(req, RSS_CONTEXT_ALLOC_IN_UPSTREAM_PORT_ID,
218 EVB_PORT_ID_ASSIGNED);
219 MCDI_IN_SET_DWORD(req, RSS_CONTEXT_ALLOC_IN_TYPE, context_type);
220 /* NUM_QUEUES is only used to validate indirection table offsets */
221 MCDI_IN_SET_DWORD(req, RSS_CONTEXT_ALLOC_IN_NUM_QUEUES, num_queues);
223 efx_mcdi_execute(enp, &req);
225 if (req.emr_rc != 0) {
230 if (req.emr_out_length_used < MC_CMD_RSS_CONTEXT_ALLOC_OUT_LEN) {
235 rss_context = MCDI_OUT_DWORD(req, RSS_CONTEXT_ALLOC_OUT_RSS_CONTEXT_ID);
236 if (rss_context == EF10_RSS_CONTEXT_INVALID) {
241 *rss_contextp = rss_context;
254 EFSYS_PROBE1(fail1, efx_rc_t, rc);
258 #endif /* EFSYS_OPT_RX_SCALE */
260 #if EFSYS_OPT_RX_SCALE
262 efx_mcdi_rss_context_free(
264 __in uint32_t rss_context)
267 uint8_t payload[MAX(MC_CMD_RSS_CONTEXT_FREE_IN_LEN,
268 MC_CMD_RSS_CONTEXT_FREE_OUT_LEN)];
271 if (rss_context == EF10_RSS_CONTEXT_INVALID) {
276 (void) memset(payload, 0, sizeof (payload));
277 req.emr_cmd = MC_CMD_RSS_CONTEXT_FREE;
278 req.emr_in_buf = payload;
279 req.emr_in_length = MC_CMD_RSS_CONTEXT_FREE_IN_LEN;
280 req.emr_out_buf = payload;
281 req.emr_out_length = MC_CMD_RSS_CONTEXT_FREE_OUT_LEN;
283 MCDI_IN_SET_DWORD(req, RSS_CONTEXT_FREE_IN_RSS_CONTEXT_ID, rss_context);
285 efx_mcdi_execute_quiet(enp, &req);
287 if (req.emr_rc != 0) {
297 EFSYS_PROBE1(fail1, efx_rc_t, rc);
301 #endif /* EFSYS_OPT_RX_SCALE */
303 #if EFSYS_OPT_RX_SCALE
305 efx_mcdi_rss_context_set_flags(
307 __in uint32_t rss_context,
308 __in efx_rx_hash_type_t type)
311 uint8_t payload[MAX(MC_CMD_RSS_CONTEXT_SET_FLAGS_IN_LEN,
312 MC_CMD_RSS_CONTEXT_SET_FLAGS_OUT_LEN)];
315 if (rss_context == EF10_RSS_CONTEXT_INVALID) {
320 (void) memset(payload, 0, sizeof (payload));
321 req.emr_cmd = MC_CMD_RSS_CONTEXT_SET_FLAGS;
322 req.emr_in_buf = payload;
323 req.emr_in_length = MC_CMD_RSS_CONTEXT_SET_FLAGS_IN_LEN;
324 req.emr_out_buf = payload;
325 req.emr_out_length = MC_CMD_RSS_CONTEXT_SET_FLAGS_OUT_LEN;
327 MCDI_IN_SET_DWORD(req, RSS_CONTEXT_SET_FLAGS_IN_RSS_CONTEXT_ID,
330 MCDI_IN_POPULATE_DWORD_4(req, RSS_CONTEXT_SET_FLAGS_IN_FLAGS,
331 RSS_CONTEXT_SET_FLAGS_IN_TOEPLITZ_IPV4_EN,
332 (type & EFX_RX_HASH_IPV4) ? 1 : 0,
333 RSS_CONTEXT_SET_FLAGS_IN_TOEPLITZ_TCPV4_EN,
334 (type & EFX_RX_HASH_TCPIPV4) ? 1 : 0,
335 RSS_CONTEXT_SET_FLAGS_IN_TOEPLITZ_IPV6_EN,
336 (type & EFX_RX_HASH_IPV6) ? 1 : 0,
337 RSS_CONTEXT_SET_FLAGS_IN_TOEPLITZ_TCPV6_EN,
338 (type & EFX_RX_HASH_TCPIPV6) ? 1 : 0);
340 efx_mcdi_execute(enp, &req);
342 if (req.emr_rc != 0) {
352 EFSYS_PROBE1(fail1, efx_rc_t, rc);
356 #endif /* EFSYS_OPT_RX_SCALE */
358 #if EFSYS_OPT_RX_SCALE
360 efx_mcdi_rss_context_set_key(
362 __in uint32_t rss_context,
363 __in_ecount(n) uint8_t *key,
367 uint8_t payload[MAX(MC_CMD_RSS_CONTEXT_SET_KEY_IN_LEN,
368 MC_CMD_RSS_CONTEXT_SET_KEY_OUT_LEN)];
371 if (rss_context == EF10_RSS_CONTEXT_INVALID) {
376 (void) memset(payload, 0, sizeof (payload));
377 req.emr_cmd = MC_CMD_RSS_CONTEXT_SET_KEY;
378 req.emr_in_buf = payload;
379 req.emr_in_length = MC_CMD_RSS_CONTEXT_SET_KEY_IN_LEN;
380 req.emr_out_buf = payload;
381 req.emr_out_length = MC_CMD_RSS_CONTEXT_SET_KEY_OUT_LEN;
383 MCDI_IN_SET_DWORD(req, RSS_CONTEXT_SET_KEY_IN_RSS_CONTEXT_ID,
386 EFSYS_ASSERT3U(n, ==, MC_CMD_RSS_CONTEXT_SET_KEY_IN_TOEPLITZ_KEY_LEN);
387 if (n != MC_CMD_RSS_CONTEXT_SET_KEY_IN_TOEPLITZ_KEY_LEN) {
392 memcpy(MCDI_IN2(req, uint8_t, RSS_CONTEXT_SET_KEY_IN_TOEPLITZ_KEY),
395 efx_mcdi_execute(enp, &req);
397 if (req.emr_rc != 0) {
409 EFSYS_PROBE1(fail1, efx_rc_t, rc);
413 #endif /* EFSYS_OPT_RX_SCALE */
415 #if EFSYS_OPT_RX_SCALE
417 efx_mcdi_rss_context_set_table(
419 __in uint32_t rss_context,
420 __in_ecount(n) unsigned int *table,
424 uint8_t payload[MAX(MC_CMD_RSS_CONTEXT_SET_TABLE_IN_LEN,
425 MC_CMD_RSS_CONTEXT_SET_TABLE_OUT_LEN)];
429 if (rss_context == EF10_RSS_CONTEXT_INVALID) {
434 (void) memset(payload, 0, sizeof (payload));
435 req.emr_cmd = MC_CMD_RSS_CONTEXT_SET_TABLE;
436 req.emr_in_buf = payload;
437 req.emr_in_length = MC_CMD_RSS_CONTEXT_SET_TABLE_IN_LEN;
438 req.emr_out_buf = payload;
439 req.emr_out_length = MC_CMD_RSS_CONTEXT_SET_TABLE_OUT_LEN;
441 MCDI_IN_SET_DWORD(req, RSS_CONTEXT_SET_TABLE_IN_RSS_CONTEXT_ID,
445 MCDI_IN2(req, uint8_t, RSS_CONTEXT_SET_TABLE_IN_INDIRECTION_TABLE);
448 i < MC_CMD_RSS_CONTEXT_SET_TABLE_IN_INDIRECTION_TABLE_LEN;
450 req_table[i] = (n > 0) ? (uint8_t)table[i % n] : 0;
453 efx_mcdi_execute(enp, &req);
455 if (req.emr_rc != 0) {
465 EFSYS_PROBE1(fail1, efx_rc_t, rc);
469 #endif /* EFSYS_OPT_RX_SCALE */
472 __checkReturn efx_rc_t
476 #if EFSYS_OPT_RX_SCALE
478 if (efx_mcdi_rss_context_alloc(enp, EFX_RX_SCALE_EXCLUSIVE, EFX_MAXRSS,
479 &enp->en_rss_context) == 0) {
481 * Allocated an exclusive RSS context, which allows both the
482 * indirection table and key to be modified.
484 enp->en_rss_context_type = EFX_RX_SCALE_EXCLUSIVE;
485 enp->en_hash_support = EFX_RX_HASH_AVAILABLE;
488 * Failed to allocate an exclusive RSS context. Continue
489 * operation without support for RSS. The pseudo-header in
490 * received packets will not contain a Toeplitz hash value.
492 enp->en_rss_context_type = EFX_RX_SCALE_UNAVAILABLE;
493 enp->en_hash_support = EFX_RX_HASH_UNAVAILABLE;
496 #endif /* EFSYS_OPT_RX_SCALE */
501 #if EFSYS_OPT_RX_SCATTER
502 __checkReturn efx_rc_t
503 ef10_rx_scatter_enable(
505 __in unsigned int buf_size)
507 _NOTE(ARGUNUSED(enp, buf_size))
510 #endif /* EFSYS_OPT_RX_SCATTER */
512 #if EFSYS_OPT_RX_SCALE
513 __checkReturn efx_rc_t
514 ef10_rx_scale_context_alloc(
516 __in efx_rx_scale_context_type_t type,
517 __in uint32_t num_queues,
518 __out uint32_t *rss_contextp)
522 rc = efx_mcdi_rss_context_alloc(enp, type, num_queues, rss_contextp);
529 EFSYS_PROBE1(fail1, efx_rc_t, rc);
532 #endif /* EFSYS_OPT_RX_SCALE */
534 #if EFSYS_OPT_RX_SCALE
535 __checkReturn efx_rc_t
536 ef10_rx_scale_context_free(
538 __in uint32_t rss_context)
542 rc = efx_mcdi_rss_context_free(enp, rss_context);
549 EFSYS_PROBE1(fail1, efx_rc_t, rc);
552 #endif /* EFSYS_OPT_RX_SCALE */
554 #if EFSYS_OPT_RX_SCALE
555 __checkReturn efx_rc_t
556 ef10_rx_scale_mode_set(
558 __in uint32_t rss_context,
559 __in efx_rx_hash_alg_t alg,
560 __in efx_rx_hash_type_t type,
561 __in boolean_t insert)
565 EFSYS_ASSERT3U(alg, ==, EFX_RX_HASHALG_TOEPLITZ);
566 EFSYS_ASSERT3U(insert, ==, B_TRUE);
568 if ((alg != EFX_RX_HASHALG_TOEPLITZ) || (insert == B_FALSE)) {
573 if (rss_context == EFX_RSS_CONTEXT_DEFAULT) {
574 if (enp->en_rss_context_type == EFX_RX_SCALE_UNAVAILABLE) {
578 rss_context = enp->en_rss_context;
581 if ((rc = efx_mcdi_rss_context_set_flags(enp,
582 rss_context, type)) != 0)
592 EFSYS_PROBE1(fail1, efx_rc_t, rc);
596 #endif /* EFSYS_OPT_RX_SCALE */
598 #if EFSYS_OPT_RX_SCALE
599 __checkReturn efx_rc_t
600 ef10_rx_scale_key_set(
602 __in uint32_t rss_context,
603 __in_ecount(n) uint8_t *key,
608 EFX_STATIC_ASSERT(EFX_RSS_KEY_SIZE ==
609 MC_CMD_RSS_CONTEXT_SET_KEY_IN_TOEPLITZ_KEY_LEN);
611 if (rss_context == EFX_RSS_CONTEXT_DEFAULT) {
612 if (enp->en_rss_context_type == EFX_RX_SCALE_UNAVAILABLE) {
616 rss_context = enp->en_rss_context;
619 if ((rc = efx_mcdi_rss_context_set_key(enp, rss_context, key, n)) != 0)
627 EFSYS_PROBE1(fail1, efx_rc_t, rc);
631 #endif /* EFSYS_OPT_RX_SCALE */
633 #if EFSYS_OPT_RX_SCALE
634 __checkReturn efx_rc_t
635 ef10_rx_scale_tbl_set(
637 __in uint32_t rss_context,
638 __in_ecount(n) unsigned int *table,
644 if (rss_context == EFX_RSS_CONTEXT_DEFAULT) {
645 if (enp->en_rss_context_type == EFX_RX_SCALE_UNAVAILABLE) {
649 rss_context = enp->en_rss_context;
652 if ((rc = efx_mcdi_rss_context_set_table(enp,
653 rss_context, table, n)) != 0)
661 EFSYS_PROBE1(fail1, efx_rc_t, rc);
665 #endif /* EFSYS_OPT_RX_SCALE */
669 * EF10 RX pseudo-header
670 * ---------------------
672 * Receive packets are prefixed by an (optional) 14 byte pseudo-header:
674 * +00: Toeplitz hash value.
675 * (32bit little-endian)
676 * +04: Outer VLAN tag. Zero if the packet did not have an outer VLAN tag.
678 * +06: Inner VLAN tag. Zero if the packet did not have an inner VLAN tag.
680 * +08: Packet Length. Zero if the RX datapath was in cut-through mode.
681 * (16bit little-endian)
682 * +10: MAC timestamp. Zero if timestamping is not enabled.
683 * (32bit little-endian)
685 * See "The RX Pseudo-header" in SF-109306-TC.
688 __checkReturn efx_rc_t
689 ef10_rx_prefix_pktlen(
691 __in uint8_t *buffer,
692 __out uint16_t *lengthp)
694 _NOTE(ARGUNUSED(enp))
697 * The RX pseudo-header contains the packet length, excluding the
698 * pseudo-header. If the hardware receive datapath was operating in
699 * cut-through mode then the length in the RX pseudo-header will be
700 * zero, and the packet length must be obtained from the DMA length
701 * reported in the RX event.
703 *lengthp = buffer[8] | (buffer[9] << 8);
707 #if EFSYS_OPT_RX_SCALE
708 __checkReturn uint32_t
711 __in efx_rx_hash_alg_t func,
712 __in uint8_t *buffer)
714 _NOTE(ARGUNUSED(enp))
717 case EFX_RX_HASHALG_TOEPLITZ:
728 #endif /* EFSYS_OPT_RX_SCALE */
730 #if EFSYS_OPT_RX_PACKED_STREAM
732 * Fake length for RXQ descriptors in packed stream mode
733 * to make hardware happy
735 #define EFX_RXQ_PACKED_STREAM_FAKE_BUF_SIZE 32
741 __in_ecount(n) efsys_dma_addr_t *addrp,
744 __in unsigned int completed,
745 __in unsigned int added)
752 #if EFSYS_OPT_RX_PACKED_STREAM
754 * Real size of the buffer does not fit into ESF_DZ_RX_KER_BYTE_CNT
755 * and equal to 0 after applying mask. Hardware does not like it.
757 if (erp->er_ev_qstate->eers_rx_packed_stream)
758 size = EFX_RXQ_PACKED_STREAM_FAKE_BUF_SIZE;
761 /* The client driver must not overfill the queue */
762 EFSYS_ASSERT3U(added - completed + n, <=,
763 EFX_RXQ_LIMIT(erp->er_mask + 1));
765 id = added & (erp->er_mask);
766 for (i = 0; i < n; i++) {
767 EFSYS_PROBE4(rx_post, unsigned int, erp->er_index,
768 unsigned int, id, efsys_dma_addr_t, addrp[i],
771 EFX_POPULATE_QWORD_3(qword,
772 ESF_DZ_RX_KER_BYTE_CNT, (uint32_t)(size),
773 ESF_DZ_RX_KER_BUF_ADDR_DW0,
774 (uint32_t)(addrp[i] & 0xffffffff),
775 ESF_DZ_RX_KER_BUF_ADDR_DW1,
776 (uint32_t)(addrp[i] >> 32));
778 offset = id * sizeof (efx_qword_t);
779 EFSYS_MEM_WRITEQ(erp->er_esmp, offset, &qword);
781 id = (id + 1) & (erp->er_mask);
788 __in unsigned int added,
789 __inout unsigned int *pushedp)
791 efx_nic_t *enp = erp->er_enp;
792 unsigned int pushed = *pushedp;
796 /* Hardware has alignment restriction for WPTR */
797 wptr = P2ALIGN(added, EF10_RX_WPTR_ALIGN);
803 /* Push the populated descriptors out */
804 wptr &= erp->er_mask;
806 EFX_POPULATE_DWORD_1(dword, ERF_DZ_RX_DESC_WPTR, wptr);
808 /* Guarantee ordering of memory (descriptors) and PIO (doorbell) */
809 EFX_DMA_SYNC_QUEUE_FOR_DEVICE(erp->er_esmp, erp->er_mask + 1,
810 wptr, pushed & erp->er_mask);
811 EFSYS_PIO_WRITE_BARRIER();
812 EFX_BAR_TBL_WRITED(enp, ER_DZ_RX_DESC_UPD_REG,
813 erp->er_index, &dword, B_FALSE);
816 #if EFSYS_OPT_RX_PACKED_STREAM
819 ef10_rx_qpush_ps_credits(
822 efx_nic_t *enp = erp->er_enp;
824 efx_evq_rxq_state_t *rxq_state = erp->er_ev_qstate;
827 EFSYS_ASSERT(rxq_state->eers_rx_packed_stream);
829 if (rxq_state->eers_rx_packed_stream_credits == 0)
833 * It is a bug if we think that FW has utilized more
834 * credits than it is allowed to have (maximum). However,
835 * make sure that we do not credit more than maximum anyway.
837 credits = MIN(rxq_state->eers_rx_packed_stream_credits,
838 EFX_RX_PACKED_STREAM_MAX_CREDITS);
839 EFX_POPULATE_DWORD_3(dword,
840 ERF_DZ_RX_DESC_MAGIC_DOORBELL, 1,
841 ERF_DZ_RX_DESC_MAGIC_CMD,
842 ERE_DZ_RX_DESC_MAGIC_CMD_PS_CREDITS,
843 ERF_DZ_RX_DESC_MAGIC_DATA, credits);
844 EFX_BAR_TBL_WRITED(enp, ER_DZ_RX_DESC_UPD_REG,
845 erp->er_index, &dword, B_FALSE);
847 rxq_state->eers_rx_packed_stream_credits = 0;
851 * In accordance with SF-112241-TC the received data has the following layout:
852 * - 8 byte pseudo-header which consist of:
853 * - 4 byte little-endian timestamp
854 * - 2 byte little-endian captured length in bytes
855 * - 2 byte little-endian original packet length in bytes
856 * - captured packet bytes
857 * - optional padding to align to 64 bytes boundary
858 * - 64 bytes scratch space for the host software
860 __checkReturn uint8_t *
861 ef10_rx_qps_packet_info(
863 __in uint8_t *buffer,
864 __in uint32_t buffer_length,
865 __in uint32_t current_offset,
866 __out uint16_t *lengthp,
867 __out uint32_t *next_offsetp,
868 __out uint32_t *timestamp)
873 efx_evq_rxq_state_t *rxq_state = erp->er_ev_qstate;
875 EFSYS_ASSERT(rxq_state->eers_rx_packed_stream);
877 buffer += current_offset;
878 pkt_start = buffer + EFX_RX_PACKED_STREAM_RX_PREFIX_SIZE;
880 qwordp = (efx_qword_t *)buffer;
881 *timestamp = EFX_QWORD_FIELD(*qwordp, ES_DZ_PS_RX_PREFIX_TSTAMP);
882 *lengthp = EFX_QWORD_FIELD(*qwordp, ES_DZ_PS_RX_PREFIX_ORIG_LEN);
883 buf_len = EFX_QWORD_FIELD(*qwordp, ES_DZ_PS_RX_PREFIX_CAP_LEN);
885 buf_len = P2ROUNDUP(buf_len + EFX_RX_PACKED_STREAM_RX_PREFIX_SIZE,
886 EFX_RX_PACKED_STREAM_ALIGNMENT);
888 current_offset + buf_len + EFX_RX_PACKED_STREAM_ALIGNMENT;
890 EFSYS_ASSERT3U(*next_offsetp, <=, buffer_length);
891 EFSYS_ASSERT3U(current_offset + *lengthp, <, *next_offsetp);
893 if ((*next_offsetp ^ current_offset) &
894 EFX_RX_PACKED_STREAM_MEM_PER_CREDIT)
895 rxq_state->eers_rx_packed_stream_credits++;
903 __checkReturn efx_rc_t
907 efx_nic_t *enp = erp->er_enp;
910 if ((rc = efx_mcdi_fini_rxq(enp, erp->er_index)) != 0)
917 * EALREADY is not an error, but indicates that the MC has rebooted and
918 * that the RXQ has already been destroyed. Callers need to know that
919 * the RXQ flush has completed to avoid waiting until timeout for a
920 * flush done event that will not be delivered.
923 EFSYS_PROBE1(fail1, efx_rc_t, rc);
933 _NOTE(ARGUNUSED(erp))
937 __checkReturn efx_rc_t
940 __in unsigned int index,
941 __in unsigned int label,
942 __in efx_rxq_type_t type,
943 __in efsys_mem_t *esmp,
949 efx_nic_cfg_t *encp = &(enp->en_nic_cfg);
951 boolean_t disable_scatter;
952 unsigned int ps_buf_size;
954 _NOTE(ARGUNUSED(id, erp))
956 EFX_STATIC_ASSERT(EFX_EV_RX_NLABELS == (1 << ESF_DZ_RX_QLABEL_WIDTH));
957 EFSYS_ASSERT3U(label, <, EFX_EV_RX_NLABELS);
958 EFSYS_ASSERT3U(enp->en_rx_qcount + 1, <, encp->enc_rxq_limit);
960 EFX_STATIC_ASSERT(ISP2(EFX_RXQ_MAXNDESCS));
961 EFX_STATIC_ASSERT(ISP2(EFX_RXQ_MINNDESCS));
963 if (!ISP2(n) || (n < EFX_RXQ_MINNDESCS) || (n > EFX_RXQ_MAXNDESCS)) {
967 if (index >= encp->enc_rxq_limit) {
973 case EFX_RXQ_TYPE_DEFAULT:
974 case EFX_RXQ_TYPE_SCATTER:
977 #if EFSYS_OPT_RX_PACKED_STREAM
978 case EFX_RXQ_TYPE_PACKED_STREAM_1M:
979 ps_buf_size = MC_CMD_INIT_RXQ_EXT_IN_PS_BUFF_1M;
981 case EFX_RXQ_TYPE_PACKED_STREAM_512K:
982 ps_buf_size = MC_CMD_INIT_RXQ_EXT_IN_PS_BUFF_512K;
984 case EFX_RXQ_TYPE_PACKED_STREAM_256K:
985 ps_buf_size = MC_CMD_INIT_RXQ_EXT_IN_PS_BUFF_256K;
987 case EFX_RXQ_TYPE_PACKED_STREAM_128K:
988 ps_buf_size = MC_CMD_INIT_RXQ_EXT_IN_PS_BUFF_128K;
990 case EFX_RXQ_TYPE_PACKED_STREAM_64K:
991 ps_buf_size = MC_CMD_INIT_RXQ_EXT_IN_PS_BUFF_64K;
993 #endif /* EFSYS_OPT_RX_PACKED_STREAM */
999 #if EFSYS_OPT_RX_PACKED_STREAM
1000 if (ps_buf_size != 0) {
1001 /* Check if datapath firmware supports packed stream mode */
1002 if (encp->enc_rx_packed_stream_supported == B_FALSE) {
1006 /* Check if packed stream allows configurable buffer sizes */
1007 if ((type != EFX_RXQ_TYPE_PACKED_STREAM_1M) &&
1008 (encp->enc_rx_var_packed_stream_supported == B_FALSE)) {
1013 #else /* EFSYS_OPT_RX_PACKED_STREAM */
1014 EFSYS_ASSERT(ps_buf_size == 0);
1015 #endif /* EFSYS_OPT_RX_PACKED_STREAM */
1017 /* Scatter can only be disabled if the firmware supports doing so */
1018 if (type == EFX_RXQ_TYPE_SCATTER)
1019 disable_scatter = B_FALSE;
1021 disable_scatter = encp->enc_rx_disable_scatter_supported;
1023 if ((rc = efx_mcdi_init_rxq(enp, n, eep->ee_index, label, index,
1024 esmp, disable_scatter, ps_buf_size)) != 0)
1028 erp->er_label = label;
1030 ef10_ev_rxlabel_init(eep, erp, label, type);
1032 erp->er_ev_qstate = &erp->er_eep->ee_rxq_state[label];
1038 #if EFSYS_OPT_RX_PACKED_STREAM
1043 #endif /* EFSYS_OPT_RX_PACKED_STREAM */
1049 EFSYS_PROBE1(fail1, efx_rc_t, rc);
1056 __in efx_rxq_t *erp)
1058 efx_nic_t *enp = erp->er_enp;
1059 efx_evq_t *eep = erp->er_eep;
1060 unsigned int label = erp->er_label;
1062 ef10_ev_rxlabel_fini(eep, label);
1064 EFSYS_ASSERT(enp->en_rx_qcount != 0);
1065 --enp->en_rx_qcount;
1067 EFSYS_KMEM_FREE(enp->en_esip, sizeof (efx_rxq_t), erp);
1072 __in efx_nic_t *enp)
1074 #if EFSYS_OPT_RX_SCALE
1075 if (enp->en_rss_context_type != EFX_RX_SCALE_UNAVAILABLE)
1076 (void) efx_mcdi_rss_context_free(enp, enp->en_rss_context);
1077 enp->en_rss_context = 0;
1078 enp->en_rss_context_type = EFX_RX_SCALE_UNAVAILABLE;
1080 _NOTE(ARGUNUSED(enp))
1081 #endif /* EFSYS_OPT_RX_SCALE */
1084 #endif /* EFSYS_OPT_HUNTINGTON || EFSYS_OPT_MEDFORD */