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// SPDX-License-Identifier: GPL-2.0 OR BSD-3-Clause
/*
* KUnit tests for channel helper functions
*
* Copyright (C) 2024 Intel Corporation
*/
#include <kunit/test.h>
#include "utils.h"
#include "iwl-trans.h"
#include "mld.h"
#include "sta.h"
static const struct is_dup_case {
const char *desc;
struct {
/* ieee80211_hdr fields */
__le16 fc;
__le16 seq;
u8 tid;
bool multicast;
/* iwl_rx_mpdu_desc fields */
bool is_amsdu;
u8 sub_frame_idx;
} rx_pkt;
struct {
__le16 last_seq;
u8 last_sub_frame_idx;
u8 tid;
} dup_data_state;
struct {
bool is_dup;
u32 rx_status_flag;
} result;
} is_dup_cases[] = {
{
.desc = "Control frame",
.rx_pkt = {
.fc = __cpu_to_le16(IEEE80211_FTYPE_CTL),
},
.result = {
.is_dup = false,
.rx_status_flag = 0,
}
},
{
.desc = "Null func frame",
.rx_pkt = {
.fc = __cpu_to_le16(IEEE80211_FTYPE_DATA |
IEEE80211_STYPE_NULLFUNC),
},
.result = {
.is_dup = false,
.rx_status_flag = 0,
}
},
{
.desc = "Multicast data",
.rx_pkt = {
.fc = __cpu_to_le16(IEEE80211_FTYPE_DATA),
.multicast = true,
},
.result = {
.is_dup = false,
.rx_status_flag = 0,
}
},
{
.desc = "QoS null func frame",
.rx_pkt = {
.fc = __cpu_to_le16(IEEE80211_FTYPE_DATA |
IEEE80211_STYPE_QOS_NULLFUNC),
},
.result = {
.is_dup = false,
.rx_status_flag = 0,
}
},
{
.desc = "QoS data new sequence",
.rx_pkt = {
.fc = __cpu_to_le16(IEEE80211_FTYPE_DATA |
IEEE80211_STYPE_QOS_DATA),
.seq = __cpu_to_le16(0x101),
},
.dup_data_state = {
.last_seq = __cpu_to_le16(0x100),
.last_sub_frame_idx = 0,
},
.result = {
.is_dup = false,
.rx_status_flag = RX_FLAG_DUP_VALIDATED,
},
},
{
.desc = "QoS data same sequence, no retry",
.rx_pkt = {
.fc = __cpu_to_le16(IEEE80211_FTYPE_DATA |
IEEE80211_STYPE_QOS_DATA),
.seq = __cpu_to_le16(0x100),
},
.dup_data_state = {
.last_seq = __cpu_to_le16(0x100),
.last_sub_frame_idx = 0,
},
.result = {
.is_dup = false,
.rx_status_flag = RX_FLAG_DUP_VALIDATED,
},
},
{
.desc = "QoS data same sequence, has retry",
.rx_pkt = {
.fc = __cpu_to_le16(IEEE80211_FTYPE_DATA |
IEEE80211_STYPE_QOS_DATA |
IEEE80211_FCTL_RETRY),
.seq = __cpu_to_le16(0x100),
},
.dup_data_state = {
.last_seq = __cpu_to_le16(0x100),
.last_sub_frame_idx = 0,
},
.result = {
.is_dup = true,
.rx_status_flag = 0,
},
},
{
.desc = "QoS data invalid tid",
.rx_pkt = {
.fc = __cpu_to_le16(IEEE80211_FTYPE_DATA |
IEEE80211_STYPE_QOS_DATA),
.seq = __cpu_to_le16(0x100),
.tid = IWL_MAX_TID_COUNT + 1,
},
.result = {
.is_dup = true,
.rx_status_flag = 0,
},
},
{
.desc = "non-QoS data, same sequence, same tid, no retry",
.rx_pkt = {
/* Driver will use tid = IWL_MAX_TID_COUNT */
.fc = __cpu_to_le16(IEEE80211_FTYPE_DATA),
.seq = __cpu_to_le16(0x100),
},
.dup_data_state = {
.tid = IWL_MAX_TID_COUNT,
.last_seq = __cpu_to_le16(0x100),
.last_sub_frame_idx = 0,
},
.result = {
.is_dup = false,
.rx_status_flag = RX_FLAG_DUP_VALIDATED,
},
},
{
.desc = "non-QoS data, same sequence, same tid, has retry",
.rx_pkt = {
/* Driver will use tid = IWL_MAX_TID_COUNT */
.fc = __cpu_to_le16(IEEE80211_FTYPE_DATA |
IEEE80211_FCTL_RETRY),
.seq = __cpu_to_le16(0x100),
},
.dup_data_state = {
.tid = IWL_MAX_TID_COUNT,
.last_seq = __cpu_to_le16(0x100),
.last_sub_frame_idx = 0,
},
.result = {
.is_dup = true,
.rx_status_flag = 0,
},
},
{
.desc = "non-QoS data, same sequence on different tid's",
.rx_pkt = {
/* Driver will use tid = IWL_MAX_TID_COUNT */
.fc = __cpu_to_le16(IEEE80211_FTYPE_DATA),
.seq = __cpu_to_le16(0x100),
},
.dup_data_state = {
.tid = 7,
.last_seq = __cpu_to_le16(0x100),
.last_sub_frame_idx = 0,
},
.result = {
.is_dup = false,
.rx_status_flag = RX_FLAG_DUP_VALIDATED,
},
},
{
.desc = "A-MSDU new subframe, allow same PN",
.rx_pkt = {
.fc = __cpu_to_le16(IEEE80211_FTYPE_DATA |
IEEE80211_STYPE_QOS_DATA),
.seq = __cpu_to_le16(0x100),
.is_amsdu = true,
.sub_frame_idx = 1,
},
.dup_data_state = {
.last_seq = __cpu_to_le16(0x100),
.last_sub_frame_idx = 0,
},
.result = {
.is_dup = false,
.rx_status_flag = RX_FLAG_ALLOW_SAME_PN |
RX_FLAG_DUP_VALIDATED,
},
},
{
.desc = "A-MSDU subframe with smaller idx, disallow same PN",
.rx_pkt = {
.fc = __cpu_to_le16(IEEE80211_FTYPE_DATA |
IEEE80211_STYPE_QOS_DATA),
.seq = __cpu_to_le16(0x100),
.is_amsdu = true,
.sub_frame_idx = 1,
},
.dup_data_state = {
.last_seq = __cpu_to_le16(0x100),
.last_sub_frame_idx = 2,
},
.result = {
.is_dup = false,
.rx_status_flag = RX_FLAG_DUP_VALIDATED,
},
},
{
.desc = "A-MSDU same subframe, no retry, disallow same PN",
.rx_pkt = {
.fc = __cpu_to_le16(IEEE80211_FTYPE_DATA |
IEEE80211_STYPE_QOS_DATA),
.seq = __cpu_to_le16(0x100),
.is_amsdu = true,
.sub_frame_idx = 0,
},
.dup_data_state = {
.last_seq = __cpu_to_le16(0x100),
.last_sub_frame_idx = 0,
},
.result = {
.is_dup = false,
.rx_status_flag = RX_FLAG_DUP_VALIDATED,
},
},
{
.desc = "A-MSDU same subframe, has retry",
.rx_pkt = {
.fc = __cpu_to_le16(IEEE80211_FTYPE_DATA |
IEEE80211_STYPE_QOS_DATA |
IEEE80211_FCTL_RETRY),
.seq = __cpu_to_le16(0x100),
.is_amsdu = true,
.sub_frame_idx = 0,
},
.dup_data_state = {
.last_seq = __cpu_to_le16(0x100),
.last_sub_frame_idx = 0,
},
.result = {
.is_dup = true,
.rx_status_flag = 0,
},
},
};
KUNIT_ARRAY_PARAM_DESC(test_is_dup, is_dup_cases, desc);
static void
setup_dup_data_state(struct ieee80211_sta *sta)
{
struct kunit *test = kunit_get_current_test();
const struct is_dup_case *param = (const void *)(test->param_value);
struct iwl_mld_sta *mld_sta = iwl_mld_sta_from_mac80211(sta);
u8 tid = param->dup_data_state.tid;
struct iwl_mld_rxq_dup_data *dup_data;
/* Allocate dup_data only for 1 queue */
KUNIT_ALLOC_AND_ASSERT(test, dup_data);
/* Initialize dup data, see iwl_mld_alloc_dup_data */
memset(dup_data->last_seq, 0xff, sizeof(dup_data->last_seq));
dup_data->last_seq[tid] = param->dup_data_state.last_seq;
dup_data->last_sub_frame_idx[tid] =
param->dup_data_state.last_sub_frame_idx;
mld_sta->dup_data = dup_data;
}
static void setup_rx_pkt(const struct is_dup_case *param,
struct ieee80211_hdr *hdr,
struct iwl_rx_mpdu_desc *mpdu_desc)
{
u8 tid = param->rx_pkt.tid;
/* Set "new rx packet" header */
hdr->frame_control = param->rx_pkt.fc;
hdr->seq_ctrl = param->rx_pkt.seq;
if (ieee80211_is_data_qos(hdr->frame_control)) {
u8 *qc = ieee80211_get_qos_ctl(hdr);
qc[0] = tid & IEEE80211_QOS_CTL_TID_MASK;
}
if (param->rx_pkt.multicast)
hdr->addr1[0] = 0x1;
/* Set mpdu_desc */
mpdu_desc->amsdu_info = param->rx_pkt.sub_frame_idx &
IWL_RX_MPDU_AMSDU_SUBFRAME_IDX_MASK;
if (param->rx_pkt.is_amsdu)
mpdu_desc->mac_flags2 |= IWL_RX_MPDU_MFLG2_AMSDU;
}
static void test_is_dup(struct kunit *test)
{
const struct is_dup_case *param = (const void *)(test->param_value);
struct iwl_mld *mld = test->priv;
struct iwl_rx_mpdu_desc mpdu_desc = { };
struct ieee80211_rx_status rx_status = { };
struct ieee80211_vif *vif;
struct ieee80211_sta *sta;
struct ieee80211_hdr hdr;
vif = iwlmld_kunit_add_vif(false, NL80211_IFTYPE_STATION);
sta = iwlmld_kunit_setup_sta(vif, IEEE80211_STA_AUTHORIZED, -1);
/* Prepare test case state */
setup_dup_data_state(sta);
setup_rx_pkt(param, &hdr, &mpdu_desc);
KUNIT_EXPECT_EQ(test,
iwl_mld_is_dup(mld, sta, &hdr, &mpdu_desc, &rx_status,
0), /* assuming only 1 queue */
param->result.is_dup);
KUNIT_EXPECT_EQ(test, rx_status.flag, param->result.rx_status_flag);
}
static struct kunit_case is_dup_test_cases[] = {
KUNIT_CASE_PARAM(test_is_dup, test_is_dup_gen_params),
{},
};
static struct kunit_suite is_dup = {
.name = "iwlmld-rx-is-dup",
.test_cases = is_dup_test_cases,
.init = iwlmld_kunit_test_init,
};
kunit_test_suite(is_dup);
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