1 // SPDX-License-Identifier: GPL-2.0 OR BSD-3-Clause
5  * Copyright (C) 2024-2025 Intel Corporation
48 			/* Set add_subframes > 0 to simulate an A-MSDU by
98 		.desc = "RX non-QoS data",
106 			/* non-QoS data frames do not require reordering.
167 		.desc = "RX In-order packet, sn < nssn",
181 			 * and buffer->head_sn is updated to NSSN.
189 		.desc = "RX In-order packet, sn == head_sn",
201 			 * 2. RX packet SN is equal to buffer->head_sn.
203 			 * and buffer->head_sn is incremented.
211 		.desc = "RX In-order packet, IEEE80211_MAX_SN wrap around",
215 			.nssn = IEEE80211_MAX_SN - 1,
223 			 * 2. RX SN == buffer->head_sn == IEEE80211_MAX_SN
225 			 * and buffer->head_sn is incremented correctly (wraps
234 		.desc = "RX Out-of-order packet, pending packet in buffer",
248 			 * 2. RX packet SN = buffer->head_sn.
260 		.desc = "RX Out-of-order packet, pending packet in buffer (wrap around)",
268 			.head_sn = IEEE80211_MAX_SN - 1,
287 		.desc = "RX Out-of-order packet, filling 1/2 holes in buffer, release RX packet",
313 		.desc = "RX Out-of-order packet, filling 1/2 holes, release 2 packets",
341 		.desc = "RX Out-of-order packet, filling 1/1 holes, no packets released",
360 			 * No packets can be released yet and buffer->head_sn
369 		.desc = "RX In-order A-MSDU, last subframe",
387 			/* 1. Reorder buffer contains a 2-sub frames A-MSDU
389 			 * 2. RX packet is the last SN=100 A-MSDU subframe
400 		.desc = "RX In-order A-MSDU, not the last subframe",
418 			/* 1. Reorder buffer contains a 2-sub frames A-MSDU
420 			 * 2. RX packet additional SN=100 A-MSDU subframe,
459 	lockdep_assert_wiphy(mld->wiphy);  in fake_iwl_mld_fw_sta_id_mask()
463 		sta_mask |= BIT(mld_link_sta->fw_id);  in fake_iwl_mld_fw_sta_id_mask()
471 		(const void *)(test->param_value);  in setup_mpdu_desc()
476 	mpdu_desc->reorder_data |=  in setup_mpdu_desc()
477 		le32_encode_bits(param->rx_pkt.baid,  in setup_mpdu_desc()
479 	mpdu_desc->reorder_data |=  in setup_mpdu_desc()
480 		le32_encode_bits(param->rx_pkt.sn,  in setup_mpdu_desc()
482 	mpdu_desc->reorder_data |=  in setup_mpdu_desc()
483 		le32_encode_bits(param->rx_pkt.nssn,  in setup_mpdu_desc()
485 	if (param->rx_pkt.old_sn)  in setup_mpdu_desc()
486 		mpdu_desc->reorder_data |=  in setup_mpdu_desc()
489 	if (param->rx_pkt.dup)  in setup_mpdu_desc()
490 		mpdu_desc->status |= cpu_to_le32(IWL_RX_MPDU_STATUS_DUPLICATE);  in setup_mpdu_desc()
492 	if (param->rx_pkt.amsdu) {  in setup_mpdu_desc()
493 		mpdu_desc->mac_flags2 |= IWL_RX_MPDU_MFLG2_AMSDU;  in setup_mpdu_desc()
494 		if (param->rx_pkt.last_subframe)  in setup_mpdu_desc()
495 			mpdu_desc->amsdu_info |=  in setup_mpdu_desc()
524 	skb_set_mac_header(skb, skb->len);  in alloc_and_setup_skb()
535 		(const void *)(test->param_value);  in setup_reorder_buffer()
536 	struct iwl_mld_reorder_buffer *buffer = baid_data->reorder_buf;  in setup_reorder_buffer()
537 	struct iwl_mld_reorder_buf_entry *entries = baid_data->entries;  in setup_reorder_buffer()
540 	buffer->valid = param->reorder_buf_state.valid;  in setup_reorder_buffer()
541 	buffer->head_sn = param->reorder_buf_state.head_sn;  in setup_reorder_buffer()
542 	buffer->queue = QUEUE;  in setup_reorder_buffer()
544 	for (int i = 0; i < baid_data->buf_size; i++)  in setup_reorder_buffer()
547 	for (int i = 0; i < param->reorder_buf_state.num_entries; i++) {  in setup_reorder_buffer()
548 		u16 sn = param->reorder_buf_state.entries[i].sn;  in setup_reorder_buffer()
549 		int index = sn % baid_data->buf_size;  in setup_reorder_buffer()
551 			param->reorder_buf_state.entries[i].add_subframes;  in setup_reorder_buffer()
552 		/* create 1 skb per entry + additional skbs per num of  in setup_reorder_buffer()
561 			buffer->num_stored++;  in setup_reorder_buffer()
571 	struct iwl_mld *mld = test->priv;  in setup_ba_data()
573 		(const void *)(test->param_value);  in setup_ba_data()
576 	u32 reorder_buf_size = BA_WINDOW_SIZE * sizeof(baid_data->entries[0]);  in setup_ba_data()
577 	u8 baid = param->reorder_buf_state.baid;  in setup_ba_data()
579 	/* Assuming only 1 RXQ */  in setup_ba_data()
583 	baid_data->baid = baid;  in setup_ba_data()
584 	baid_data->tid = param->rx_pkt.tid;  in setup_ba_data()
585 	baid_data->buf_size = BA_WINDOW_SIZE;  in setup_ba_data()
587 	wiphy_lock(mld->wiphy);  in setup_ba_data()
588 	baid_data->sta_mask = iwl_mld_fw_sta_id_mask(mld, sta);  in setup_ba_data()
589 	wiphy_unlock(mld->wiphy);  in setup_ba_data()
591 	baid_data->entries_per_queue = BA_WINDOW_SIZE;  in setup_ba_data()
595 	KUNIT_EXPECT_NULL(test, rcu_access_pointer(mld->fw_id_to_ba[baid]));  in setup_ba_data()
596 	rcu_assign_pointer(mld->fw_id_to_ba[baid], baid_data);  in setup_ba_data()
603 	struct iwl_mld *mld = test->priv;  in test_reorder_buffer()
605 		(const void *)(test->param_value);  in test_reorder_buffer()
612 	u16 skb_release_order_count = param->expected.skb_release_order_count;  in test_reorder_buffer()
624 	sta = iwlmld_kunit_setup_sta(vif, IEEE80211_STA_AUTHORIZED, -1);  in test_reorder_buffer()
627 	skb = alloc_and_setup_skb(param->rx_pkt.fc, param->rx_pkt.sn,  in test_reorder_buffer()
628 				  param->rx_pkt.tid, param->rx_pkt.multicast);  in test_reorder_buffer()
636 	KUNIT_ASSERT_EQ(test, reorder_res, param->expected.reorder_res);  in test_reorder_buffer()
637 	KUNIT_ASSERT_EQ(test, buffer->num_stored, param->expected.num_stored);  in test_reorder_buffer()
638 	KUNIT_ASSERT_EQ(test, buffer->head_sn, param->expected.head_sn);  in test_reorder_buffer()
645 		KUNIT_ASSERT_EQ(test, le16_to_cpu(hdr->seq_ctrl),  in test_reorder_buffer()
646 				param->expected.skb_release_order[skb_idx]);  in test_reorder_buffer()
658 	.name = "iwlmld-reorder-buffer",