cachepc-linux

Fork of AMDESE/linux with modifications for CachePC side-channel attack
git clone https://git.sinitax.com/sinitax/cachepc-linux
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cam.c (21367B)


      1// SPDX-License-Identifier: GPL-2.0 OR BSD-3-Clause
      2/* Copyright(c) 2019-2020  Realtek Corporation
      3 */
      4
      5#include "cam.h"
      6#include "debug.h"
      7#include "fw.h"
      8#include "mac.h"
      9
     10static struct sk_buff *
     11rtw89_cam_get_sec_key_cmd(struct rtw89_dev *rtwdev,
     12			  struct rtw89_sec_cam_entry *sec_cam,
     13			  bool ext_key)
     14{
     15	struct sk_buff *skb;
     16	u32 cmd_len = H2C_SEC_CAM_LEN;
     17	u32 key32[4];
     18	u8 *cmd;
     19	int i, j;
     20
     21	skb = rtw89_fw_h2c_alloc_skb_with_hdr(rtwdev, cmd_len);
     22	if (!skb)
     23		return NULL;
     24
     25	skb_put_zero(skb, cmd_len);
     26
     27	for (i = 0; i < 4; i++) {
     28		j = i * 4;
     29		j += ext_key ? 16 : 0;
     30		key32[i] = FIELD_PREP(GENMASK(7, 0), sec_cam->key[j + 0]) |
     31			   FIELD_PREP(GENMASK(15, 8), sec_cam->key[j + 1]) |
     32			   FIELD_PREP(GENMASK(23, 16), sec_cam->key[j + 2]) |
     33			   FIELD_PREP(GENMASK(31, 24), sec_cam->key[j + 3]);
     34	}
     35
     36	cmd = skb->data;
     37	RTW89_SET_FWCMD_SEC_IDX(cmd, sec_cam->sec_cam_idx + (ext_key ? 1 : 0));
     38	RTW89_SET_FWCMD_SEC_OFFSET(cmd, sec_cam->offset);
     39	RTW89_SET_FWCMD_SEC_LEN(cmd, sec_cam->len);
     40	RTW89_SET_FWCMD_SEC_TYPE(cmd, sec_cam->type);
     41	RTW89_SET_FWCMD_SEC_EXT_KEY(cmd, ext_key);
     42	RTW89_SET_FWCMD_SEC_SPP_MODE(cmd, sec_cam->spp_mode);
     43	RTW89_SET_FWCMD_SEC_KEY0(cmd, key32[0]);
     44	RTW89_SET_FWCMD_SEC_KEY1(cmd, key32[1]);
     45	RTW89_SET_FWCMD_SEC_KEY2(cmd, key32[2]);
     46	RTW89_SET_FWCMD_SEC_KEY3(cmd, key32[3]);
     47
     48	return skb;
     49}
     50
     51static int rtw89_cam_send_sec_key_cmd(struct rtw89_dev *rtwdev,
     52				      struct rtw89_sec_cam_entry *sec_cam)
     53{
     54	struct sk_buff *skb, *ext_skb;
     55	int ret;
     56
     57	skb = rtw89_cam_get_sec_key_cmd(rtwdev, sec_cam, false);
     58	if (!skb) {
     59		rtw89_err(rtwdev, "failed to get sec key command\n");
     60		return -ENOMEM;
     61	}
     62
     63	rtw89_h2c_pkt_set_hdr(rtwdev, skb,
     64			      FWCMD_TYPE_H2C,
     65			      H2C_CAT_MAC,
     66			      H2C_CL_MAC_SEC_CAM,
     67			      H2C_FUNC_MAC_SEC_UPD, 1, 0,
     68			      H2C_SEC_CAM_LEN);
     69	ret = rtw89_h2c_tx(rtwdev, skb, false);
     70	if (ret) {
     71		rtw89_err(rtwdev, "failed to send sec key h2c: %d\n", ret);
     72		dev_kfree_skb(skb);
     73		return ret;
     74	}
     75
     76	if (!sec_cam->ext_key)
     77		return 0;
     78
     79	ext_skb = rtw89_cam_get_sec_key_cmd(rtwdev, sec_cam, true);
     80	if (!ext_skb) {
     81		rtw89_err(rtwdev, "failed to get ext sec key command\n");
     82		return -ENOMEM;
     83	}
     84
     85	rtw89_h2c_pkt_set_hdr(rtwdev, ext_skb,
     86			      FWCMD_TYPE_H2C,
     87			      H2C_CAT_MAC,
     88			      H2C_CL_MAC_SEC_CAM,
     89			      H2C_FUNC_MAC_SEC_UPD,
     90			      1, 0, H2C_SEC_CAM_LEN);
     91	ret = rtw89_h2c_tx(rtwdev, ext_skb, false);
     92	if (ret) {
     93		rtw89_err(rtwdev, "failed to send ext sec key h2c: %d\n", ret);
     94		dev_kfree_skb(ext_skb);
     95		return ret;
     96	}
     97
     98	return 0;
     99}
    100
    101static int rtw89_cam_get_avail_sec_cam(struct rtw89_dev *rtwdev,
    102				       u8 *sec_cam_idx, bool ext_key)
    103{
    104	const struct rtw89_chip_info *chip = rtwdev->chip;
    105	struct rtw89_cam_info *cam_info = &rtwdev->cam_info;
    106	u8 sec_cam_num = chip->scam_num;
    107	u8 idx = 0;
    108
    109	if (!ext_key) {
    110		idx = find_first_zero_bit(cam_info->sec_cam_map, sec_cam_num);
    111		if (idx >= sec_cam_num)
    112			return -EBUSY;
    113
    114		set_bit(idx, cam_info->sec_cam_map);
    115		*sec_cam_idx = idx;
    116
    117		return 0;
    118	}
    119
    120again:
    121	idx = find_next_zero_bit(cam_info->sec_cam_map, sec_cam_num, idx);
    122	if (idx >= sec_cam_num - 1)
    123		return -EBUSY;
    124	/* ext keys need two cam entries for 256-bit key */
    125	if (test_bit(idx + 1, cam_info->sec_cam_map)) {
    126		idx++;
    127		goto again;
    128	}
    129
    130	set_bit(idx, cam_info->sec_cam_map);
    131	set_bit(idx + 1, cam_info->sec_cam_map);
    132	*sec_cam_idx = idx;
    133
    134	return 0;
    135}
    136
    137static int rtw89_cam_get_addr_cam_key_idx(struct rtw89_addr_cam_entry *addr_cam,
    138					  struct rtw89_sec_cam_entry *sec_cam,
    139					  struct ieee80211_key_conf *key,
    140					  u8 *key_idx)
    141{
    142	u8 idx;
    143
    144	/* RTW89_ADDR_CAM_SEC_NONE	: not enabled
    145	 * RTW89_ADDR_CAM_SEC_ALL_UNI	: 0 - 6 unicast
    146	 * RTW89_ADDR_CAM_SEC_NORMAL	: 0 - 1 unicast, 2 - 4 group, 5 - 6 BIP
    147	 * RTW89_ADDR_CAM_SEC_4GROUP	: 0 - 1 unicast, 2 - 5 group, 6 BIP
    148	 */
    149	switch (addr_cam->sec_ent_mode) {
    150	case RTW89_ADDR_CAM_SEC_NONE:
    151		return -EINVAL;
    152	case RTW89_ADDR_CAM_SEC_ALL_UNI:
    153		if (!(key->flags & IEEE80211_KEY_FLAG_PAIRWISE))
    154			return -EINVAL;
    155		idx = find_first_zero_bit(addr_cam->sec_cam_map,
    156					  RTW89_SEC_CAM_IN_ADDR_CAM);
    157		if (idx >= RTW89_SEC_CAM_IN_ADDR_CAM)
    158			return -EBUSY;
    159		*key_idx = idx;
    160		break;
    161	case RTW89_ADDR_CAM_SEC_NORMAL:
    162		if (sec_cam->type == RTW89_SEC_KEY_TYPE_BIP_CCMP128) {
    163			idx = find_next_zero_bit(addr_cam->sec_cam_map,
    164						 RTW89_SEC_CAM_IN_ADDR_CAM, 5);
    165			if (idx > 6)
    166				return -EBUSY;
    167			*key_idx = idx;
    168			break;
    169		}
    170
    171		if (key->flags & IEEE80211_KEY_FLAG_PAIRWISE) {
    172			idx = find_next_zero_bit(addr_cam->sec_cam_map,
    173						 RTW89_SEC_CAM_IN_ADDR_CAM, 0);
    174			if (idx > 1)
    175				return -EBUSY;
    176			*key_idx = idx;
    177			break;
    178		}
    179
    180		/* Group keys */
    181		idx = find_next_zero_bit(addr_cam->sec_cam_map,
    182					 RTW89_SEC_CAM_IN_ADDR_CAM, 2);
    183		if (idx > 4)
    184			return -EBUSY;
    185		*key_idx = idx;
    186		break;
    187	case RTW89_ADDR_CAM_SEC_4GROUP:
    188		if (sec_cam->type == RTW89_SEC_KEY_TYPE_BIP_CCMP128) {
    189			if (test_bit(6, addr_cam->sec_cam_map))
    190				return -EINVAL;
    191			*key_idx = 6;
    192			break;
    193		}
    194
    195		if (key->flags & IEEE80211_KEY_FLAG_PAIRWISE) {
    196			idx = find_next_zero_bit(addr_cam->sec_cam_map,
    197						 RTW89_SEC_CAM_IN_ADDR_CAM, 0);
    198			if (idx > 1)
    199				return -EBUSY;
    200			*key_idx = idx;
    201			break;
    202		}
    203
    204		/* Group keys */
    205		idx = find_next_zero_bit(addr_cam->sec_cam_map,
    206					 RTW89_SEC_CAM_IN_ADDR_CAM, 2);
    207		if (idx > 5)
    208			return -EBUSY;
    209		*key_idx = idx;
    210		break;
    211	}
    212
    213	return 0;
    214}
    215
    216static int rtw89_cam_attach_sec_cam(struct rtw89_dev *rtwdev,
    217				    struct ieee80211_vif *vif,
    218				    struct ieee80211_sta *sta,
    219				    struct ieee80211_key_conf *key,
    220				    struct rtw89_sec_cam_entry *sec_cam)
    221{
    222	struct rtw89_sta *rtwsta = sta_to_rtwsta_safe(sta);
    223	struct rtw89_vif *rtwvif;
    224	struct rtw89_addr_cam_entry *addr_cam;
    225	u8 key_idx = 0;
    226	int ret;
    227
    228	if (!vif) {
    229		rtw89_err(rtwdev, "No iface for adding sec cam\n");
    230		return -EINVAL;
    231	}
    232
    233	rtwvif = (struct rtw89_vif *)vif->drv_priv;
    234	addr_cam = rtw89_get_addr_cam_of(rtwvif, rtwsta);
    235	ret = rtw89_cam_get_addr_cam_key_idx(addr_cam, sec_cam, key, &key_idx);
    236	if (ret) {
    237		rtw89_err(rtwdev, "failed to get addr cam key idx %d, %d\n",
    238			  addr_cam->sec_ent_mode, sec_cam->type);
    239		return ret;
    240	}
    241
    242	key->hw_key_idx = key_idx;
    243	addr_cam->sec_ent_keyid[key_idx] = key->keyidx;
    244	addr_cam->sec_ent[key_idx] = sec_cam->sec_cam_idx;
    245	addr_cam->sec_entries[key_idx] = sec_cam;
    246	set_bit(key_idx, addr_cam->sec_cam_map);
    247	ret = rtw89_chip_h2c_dctl_sec_cam(rtwdev, rtwvif, rtwsta);
    248	if (ret) {
    249		rtw89_err(rtwdev, "failed to update dctl cam sec entry: %d\n",
    250			  ret);
    251		return ret;
    252	}
    253	ret = rtw89_fw_h2c_cam(rtwdev, rtwvif, rtwsta, NULL);
    254	if (ret) {
    255		rtw89_err(rtwdev, "failed to update addr cam sec entry: %d\n",
    256			  ret);
    257		clear_bit(key_idx, addr_cam->sec_cam_map);
    258		addr_cam->sec_entries[key_idx] = NULL;
    259		return ret;
    260	}
    261
    262	return 0;
    263}
    264
    265static int rtw89_cam_sec_key_install(struct rtw89_dev *rtwdev,
    266				     struct ieee80211_vif *vif,
    267				     struct ieee80211_sta *sta,
    268				     struct ieee80211_key_conf *key,
    269				     u8 hw_key_type, bool ext_key)
    270{
    271	struct rtw89_sec_cam_entry *sec_cam = NULL;
    272	struct rtw89_cam_info *cam_info = &rtwdev->cam_info;
    273	u8 sec_cam_idx;
    274	int ret;
    275
    276	/* maximum key length 256-bit */
    277	if (key->keylen > 32) {
    278		rtw89_err(rtwdev, "invalid sec key length %d\n", key->keylen);
    279		return -EINVAL;
    280	}
    281
    282	ret = rtw89_cam_get_avail_sec_cam(rtwdev, &sec_cam_idx, ext_key);
    283	if (ret) {
    284		rtw89_warn(rtwdev, "no available sec cam: %d ext: %d\n",
    285			   ret, ext_key);
    286		return ret;
    287	}
    288
    289	sec_cam = kzalloc(sizeof(*sec_cam), GFP_KERNEL);
    290	if (!sec_cam) {
    291		ret = -ENOMEM;
    292		goto err_release_cam;
    293	}
    294
    295	sec_cam->sec_cam_idx = sec_cam_idx;
    296	sec_cam->type = hw_key_type;
    297	sec_cam->len = RTW89_SEC_CAM_LEN;
    298	sec_cam->ext_key = ext_key;
    299	memcpy(sec_cam->key, key->key, key->keylen);
    300	ret = rtw89_cam_send_sec_key_cmd(rtwdev, sec_cam);
    301	if (ret) {
    302		rtw89_err(rtwdev, "failed to send sec key cmd: %d\n", ret);
    303		goto err_release_cam;
    304	}
    305
    306	/* associate with addr cam */
    307	ret = rtw89_cam_attach_sec_cam(rtwdev, vif, sta, key, sec_cam);
    308	if (ret) {
    309		rtw89_err(rtwdev, "failed to attach sec cam: %d\n", ret);
    310		goto err_release_cam;
    311	}
    312
    313	return 0;
    314
    315err_release_cam:
    316	kfree(sec_cam);
    317	clear_bit(sec_cam_idx, cam_info->sec_cam_map);
    318	if (ext_key)
    319		clear_bit(sec_cam_idx + 1, cam_info->sec_cam_map);
    320
    321	return ret;
    322}
    323
    324int rtw89_cam_sec_key_add(struct rtw89_dev *rtwdev,
    325			  struct ieee80211_vif *vif,
    326			  struct ieee80211_sta *sta,
    327			  struct ieee80211_key_conf *key)
    328{
    329	const struct rtw89_chip_info *chip = rtwdev->chip;
    330	u8 hw_key_type;
    331	bool ext_key = false;
    332	int ret;
    333
    334	switch (key->cipher) {
    335	case WLAN_CIPHER_SUITE_WEP40:
    336		hw_key_type = RTW89_SEC_KEY_TYPE_WEP40;
    337		break;
    338	case WLAN_CIPHER_SUITE_WEP104:
    339		hw_key_type = RTW89_SEC_KEY_TYPE_WEP104;
    340		break;
    341	case WLAN_CIPHER_SUITE_CCMP:
    342		hw_key_type = RTW89_SEC_KEY_TYPE_CCMP128;
    343		key->flags |= IEEE80211_KEY_FLAG_SW_MGMT_TX;
    344		break;
    345	case WLAN_CIPHER_SUITE_CCMP_256:
    346		hw_key_type = RTW89_SEC_KEY_TYPE_CCMP256;
    347		key->flags |= IEEE80211_KEY_FLAG_SW_MGMT_TX;
    348		ext_key = true;
    349		break;
    350	case WLAN_CIPHER_SUITE_GCMP:
    351		hw_key_type = RTW89_SEC_KEY_TYPE_GCMP128;
    352		key->flags |= IEEE80211_KEY_FLAG_SW_MGMT_TX;
    353		break;
    354	case WLAN_CIPHER_SUITE_GCMP_256:
    355		hw_key_type = RTW89_SEC_KEY_TYPE_GCMP256;
    356		key->flags |= IEEE80211_KEY_FLAG_SW_MGMT_TX;
    357		ext_key = true;
    358		break;
    359	default:
    360		return -EOPNOTSUPP;
    361	}
    362
    363	if (!chip->hw_sec_hdr)
    364		key->flags |= IEEE80211_KEY_FLAG_GENERATE_IV;
    365
    366	ret = rtw89_cam_sec_key_install(rtwdev, vif, sta, key, hw_key_type,
    367					ext_key);
    368	if (ret) {
    369		rtw89_err(rtwdev, "failed to install key type %d ext %d: %d\n",
    370			  hw_key_type, ext_key, ret);
    371		return ret;
    372	}
    373
    374	return 0;
    375}
    376
    377int rtw89_cam_sec_key_del(struct rtw89_dev *rtwdev,
    378			  struct ieee80211_vif *vif,
    379			  struct ieee80211_sta *sta,
    380			  struct ieee80211_key_conf *key,
    381			  bool inform_fw)
    382{
    383	struct rtw89_sta *rtwsta = sta_to_rtwsta_safe(sta);
    384	struct rtw89_cam_info *cam_info = &rtwdev->cam_info;
    385	struct rtw89_vif *rtwvif;
    386	struct rtw89_addr_cam_entry *addr_cam;
    387	struct rtw89_sec_cam_entry *sec_cam;
    388	u8 key_idx = key->hw_key_idx;
    389	u8 sec_cam_idx;
    390	int ret = 0;
    391
    392	if (!vif) {
    393		rtw89_err(rtwdev, "No iface for deleting sec cam\n");
    394		return -EINVAL;
    395	}
    396
    397	rtwvif = (struct rtw89_vif *)vif->drv_priv;
    398	addr_cam = rtw89_get_addr_cam_of(rtwvif, rtwsta);
    399	sec_cam = addr_cam->sec_entries[key_idx];
    400	if (!sec_cam)
    401		return -EINVAL;
    402
    403	/* detach sec cam from addr cam */
    404	clear_bit(key_idx, addr_cam->sec_cam_map);
    405	addr_cam->sec_entries[key_idx] = NULL;
    406	if (inform_fw) {
    407		ret = rtw89_chip_h2c_dctl_sec_cam(rtwdev, rtwvif, rtwsta);
    408		if (ret)
    409			rtw89_err(rtwdev, "failed to update dctl cam del key: %d\n", ret);
    410		ret = rtw89_fw_h2c_cam(rtwdev, rtwvif, rtwsta, NULL);
    411		if (ret)
    412			rtw89_err(rtwdev, "failed to update cam del key: %d\n", ret);
    413	}
    414
    415	/* clear valid bit in addr cam will disable sec cam,
    416	 * so we don't need to send H2C command again
    417	 */
    418	sec_cam_idx = sec_cam->sec_cam_idx;
    419	clear_bit(sec_cam_idx, cam_info->sec_cam_map);
    420	if (sec_cam->ext_key)
    421		clear_bit(sec_cam_idx + 1, cam_info->sec_cam_map);
    422
    423	kfree(sec_cam);
    424
    425	return ret;
    426}
    427
    428static void rtw89_cam_reset_key_iter(struct ieee80211_hw *hw,
    429				     struct ieee80211_vif *vif,
    430				     struct ieee80211_sta *sta,
    431				     struct ieee80211_key_conf *key,
    432				     void *data)
    433{
    434	struct rtw89_dev *rtwdev = (struct rtw89_dev *)data;
    435
    436	rtw89_cam_sec_key_del(rtwdev, vif, sta, key, false);
    437}
    438
    439void rtw89_cam_deinit_addr_cam(struct rtw89_dev *rtwdev,
    440			       struct rtw89_addr_cam_entry *addr_cam)
    441{
    442	struct rtw89_cam_info *cam_info = &rtwdev->cam_info;
    443
    444	addr_cam->valid = false;
    445	clear_bit(addr_cam->addr_cam_idx, cam_info->addr_cam_map);
    446}
    447
    448void rtw89_cam_deinit(struct rtw89_dev *rtwdev, struct rtw89_vif *rtwvif)
    449{
    450	struct rtw89_cam_info *cam_info = &rtwdev->cam_info;
    451	struct rtw89_addr_cam_entry *addr_cam = &rtwvif->addr_cam;
    452	struct rtw89_bssid_cam_entry *bssid_cam = &rtwvif->bssid_cam;
    453
    454	rtw89_cam_deinit_addr_cam(rtwdev, addr_cam);
    455	bssid_cam->valid = false;
    456	clear_bit(bssid_cam->bssid_cam_idx, cam_info->bssid_cam_map);
    457}
    458
    459void rtw89_cam_reset_keys(struct rtw89_dev *rtwdev)
    460{
    461	rcu_read_lock();
    462	ieee80211_iter_keys_rcu(rtwdev->hw, NULL, rtw89_cam_reset_key_iter, rtwdev);
    463	rcu_read_unlock();
    464}
    465
    466static int rtw89_cam_get_avail_addr_cam(struct rtw89_dev *rtwdev,
    467					u8 *addr_cam_idx)
    468{
    469	const struct rtw89_chip_info *chip = rtwdev->chip;
    470	struct rtw89_cam_info *cam_info = &rtwdev->cam_info;
    471	u8 addr_cam_num = chip->acam_num;
    472	u8 idx;
    473
    474	idx = find_first_zero_bit(cam_info->addr_cam_map, addr_cam_num);
    475	if (idx >= addr_cam_num)
    476		return -EBUSY;
    477
    478	set_bit(idx, cam_info->addr_cam_map);
    479	*addr_cam_idx = idx;
    480
    481	return 0;
    482}
    483
    484int rtw89_cam_init_addr_cam(struct rtw89_dev *rtwdev,
    485			    struct rtw89_addr_cam_entry *addr_cam,
    486			    const struct rtw89_bssid_cam_entry *bssid_cam)
    487{
    488	u8 addr_cam_idx;
    489	int i;
    490	int ret;
    491
    492	if (unlikely(addr_cam->valid)) {
    493		rtw89_debug(rtwdev, RTW89_DBG_FW,
    494			    "addr cam is already valid; skip init\n");
    495		return 0;
    496	}
    497
    498	ret = rtw89_cam_get_avail_addr_cam(rtwdev, &addr_cam_idx);
    499	if (ret) {
    500		rtw89_err(rtwdev, "failed to get available addr cam\n");
    501		return ret;
    502	}
    503
    504	addr_cam->addr_cam_idx = addr_cam_idx;
    505	addr_cam->len = ADDR_CAM_ENT_SIZE;
    506	addr_cam->offset = 0;
    507	addr_cam->valid = true;
    508	addr_cam->addr_mask = 0;
    509	addr_cam->mask_sel = RTW89_NO_MSK;
    510	addr_cam->sec_ent_mode = RTW89_ADDR_CAM_SEC_NORMAL;
    511	bitmap_zero(addr_cam->sec_cam_map, RTW89_SEC_CAM_IN_ADDR_CAM);
    512
    513	for (i = 0; i < RTW89_SEC_CAM_IN_ADDR_CAM; i++) {
    514		addr_cam->sec_ent_keyid[i] = 0;
    515		addr_cam->sec_ent[i] = 0;
    516	}
    517
    518	/* associate addr cam with bssid cam */
    519	addr_cam->bssid_cam_idx = bssid_cam->bssid_cam_idx;
    520
    521	return 0;
    522}
    523
    524static int rtw89_cam_get_avail_bssid_cam(struct rtw89_dev *rtwdev,
    525					 u8 *bssid_cam_idx)
    526{
    527	const struct rtw89_chip_info *chip = rtwdev->chip;
    528	struct rtw89_cam_info *cam_info = &rtwdev->cam_info;
    529	u8 bssid_cam_num = chip->bcam_num;
    530	u8 idx;
    531
    532	idx = find_first_zero_bit(cam_info->bssid_cam_map, bssid_cam_num);
    533	if (idx >= bssid_cam_num)
    534		return -EBUSY;
    535
    536	set_bit(idx, cam_info->bssid_cam_map);
    537	*bssid_cam_idx = idx;
    538
    539	return 0;
    540}
    541
    542static int rtw89_cam_init_bssid_cam(struct rtw89_dev *rtwdev,
    543				    struct rtw89_vif *rtwvif)
    544{
    545	struct rtw89_bssid_cam_entry *bssid_cam = &rtwvif->bssid_cam;
    546	u8 bssid_cam_idx;
    547	int ret;
    548
    549	if (unlikely(bssid_cam->valid)) {
    550		rtw89_debug(rtwdev, RTW89_DBG_FW,
    551			    "bssid cam is already valid; skip init\n");
    552		return 0;
    553	}
    554
    555	ret = rtw89_cam_get_avail_bssid_cam(rtwdev, &bssid_cam_idx);
    556	if (ret) {
    557		rtw89_err(rtwdev, "failed to get available bssid cam\n");
    558		return ret;
    559	}
    560
    561	bssid_cam->bssid_cam_idx = bssid_cam_idx;
    562	bssid_cam->phy_idx = rtwvif->phy_idx;
    563	bssid_cam->len = BSSID_CAM_ENT_SIZE;
    564	bssid_cam->offset = 0;
    565	bssid_cam->valid = true;
    566	ether_addr_copy(bssid_cam->bssid, rtwvif->bssid);
    567
    568	return 0;
    569}
    570
    571void rtw89_cam_bssid_changed(struct rtw89_dev *rtwdev, struct rtw89_vif *rtwvif)
    572{
    573	struct rtw89_bssid_cam_entry *bssid_cam = &rtwvif->bssid_cam;
    574
    575	ether_addr_copy(bssid_cam->bssid, rtwvif->bssid);
    576}
    577
    578int rtw89_cam_init(struct rtw89_dev *rtwdev, struct rtw89_vif *rtwvif)
    579{
    580	struct rtw89_addr_cam_entry *addr_cam = &rtwvif->addr_cam;
    581	struct rtw89_bssid_cam_entry *bssid_cam = &rtwvif->bssid_cam;
    582	int ret;
    583
    584	ret = rtw89_cam_init_bssid_cam(rtwdev, rtwvif);
    585	if (ret) {
    586		rtw89_err(rtwdev, "failed to init bssid cam\n");
    587		return ret;
    588	}
    589
    590	ret = rtw89_cam_init_addr_cam(rtwdev, addr_cam, bssid_cam);
    591	if (ret) {
    592		rtw89_err(rtwdev, "failed to init addr cam\n");
    593		return ret;
    594	}
    595
    596	return 0;
    597}
    598
    599int rtw89_cam_fill_bssid_cam_info(struct rtw89_dev *rtwdev,
    600				  struct rtw89_vif *rtwvif, u8 *cmd)
    601{
    602	struct ieee80211_vif *vif = rtwvif_to_vif(rtwvif);
    603	struct rtw89_bssid_cam_entry *bssid_cam = &rtwvif->bssid_cam;
    604	u8 bss_color = vif->bss_conf.he_bss_color.color;
    605
    606	FWCMD_SET_ADDR_BSSID_IDX(cmd, bssid_cam->bssid_cam_idx);
    607	FWCMD_SET_ADDR_BSSID_OFFSET(cmd, bssid_cam->offset);
    608	FWCMD_SET_ADDR_BSSID_LEN(cmd, bssid_cam->len);
    609	FWCMD_SET_ADDR_BSSID_VALID(cmd, bssid_cam->valid);
    610	FWCMD_SET_ADDR_BSSID_BB_SEL(cmd, bssid_cam->phy_idx);
    611	FWCMD_SET_ADDR_BSSID_BSS_COLOR(cmd, bss_color);
    612
    613	FWCMD_SET_ADDR_BSSID_BSSID0(cmd, bssid_cam->bssid[0]);
    614	FWCMD_SET_ADDR_BSSID_BSSID1(cmd, bssid_cam->bssid[1]);
    615	FWCMD_SET_ADDR_BSSID_BSSID2(cmd, bssid_cam->bssid[2]);
    616	FWCMD_SET_ADDR_BSSID_BSSID3(cmd, bssid_cam->bssid[3]);
    617	FWCMD_SET_ADDR_BSSID_BSSID4(cmd, bssid_cam->bssid[4]);
    618	FWCMD_SET_ADDR_BSSID_BSSID5(cmd, bssid_cam->bssid[5]);
    619
    620	return 0;
    621}
    622
    623static u8 rtw89_cam_addr_hash(u8 start, const u8 *addr)
    624{
    625	u8 hash = 0;
    626	u8 i;
    627
    628	for (i = start; i < ETH_ALEN; i++)
    629		hash ^= addr[i];
    630
    631	return hash;
    632}
    633
    634void rtw89_cam_fill_addr_cam_info(struct rtw89_dev *rtwdev,
    635				  struct rtw89_vif *rtwvif,
    636				  struct rtw89_sta *rtwsta,
    637				  const u8 *scan_mac_addr,
    638				  u8 *cmd)
    639{
    640	struct ieee80211_vif *vif = rtwvif_to_vif(rtwvif);
    641	struct rtw89_addr_cam_entry *addr_cam = rtw89_get_addr_cam_of(rtwvif, rtwsta);
    642	struct ieee80211_sta *sta = rtwsta_to_sta_safe(rtwsta);
    643	const u8 *sma = scan_mac_addr ? scan_mac_addr : rtwvif->mac_addr;
    644	u8 sma_hash, tma_hash, addr_msk_start;
    645	u8 sma_start = 0;
    646	u8 tma_start = 0;
    647	u8 *tma = sta ? sta->addr : rtwvif->bssid;
    648
    649	if (addr_cam->addr_mask != 0) {
    650		addr_msk_start = __ffs(addr_cam->addr_mask);
    651		if (addr_cam->mask_sel == RTW89_SMA)
    652			sma_start = addr_msk_start;
    653		else if (addr_cam->mask_sel == RTW89_TMA)
    654			tma_start = addr_msk_start;
    655	}
    656	sma_hash = rtw89_cam_addr_hash(sma_start, sma);
    657	tma_hash = rtw89_cam_addr_hash(tma_start, tma);
    658
    659	FWCMD_SET_ADDR_IDX(cmd, addr_cam->addr_cam_idx);
    660	FWCMD_SET_ADDR_OFFSET(cmd, addr_cam->offset);
    661	FWCMD_SET_ADDR_LEN(cmd, addr_cam->len);
    662
    663	FWCMD_SET_ADDR_VALID(cmd, addr_cam->valid);
    664	FWCMD_SET_ADDR_NET_TYPE(cmd, rtwvif->net_type);
    665	FWCMD_SET_ADDR_BCN_HIT_COND(cmd, rtwvif->bcn_hit_cond);
    666	FWCMD_SET_ADDR_HIT_RULE(cmd, rtwvif->hit_rule);
    667	FWCMD_SET_ADDR_BB_SEL(cmd, rtwvif->phy_idx);
    668	FWCMD_SET_ADDR_ADDR_MASK(cmd, addr_cam->addr_mask);
    669	FWCMD_SET_ADDR_MASK_SEL(cmd, addr_cam->mask_sel);
    670	FWCMD_SET_ADDR_SMA_HASH(cmd, sma_hash);
    671	FWCMD_SET_ADDR_TMA_HASH(cmd, tma_hash);
    672
    673	FWCMD_SET_ADDR_BSSID_CAM_IDX(cmd, addr_cam->bssid_cam_idx);
    674
    675	FWCMD_SET_ADDR_SMA0(cmd, sma[0]);
    676	FWCMD_SET_ADDR_SMA1(cmd, sma[1]);
    677	FWCMD_SET_ADDR_SMA2(cmd, sma[2]);
    678	FWCMD_SET_ADDR_SMA3(cmd, sma[3]);
    679	FWCMD_SET_ADDR_SMA4(cmd, sma[4]);
    680	FWCMD_SET_ADDR_SMA5(cmd, sma[5]);
    681
    682	FWCMD_SET_ADDR_TMA0(cmd, tma[0]);
    683	FWCMD_SET_ADDR_TMA1(cmd, tma[1]);
    684	FWCMD_SET_ADDR_TMA2(cmd, tma[2]);
    685	FWCMD_SET_ADDR_TMA3(cmd, tma[3]);
    686	FWCMD_SET_ADDR_TMA4(cmd, tma[4]);
    687	FWCMD_SET_ADDR_TMA5(cmd, tma[5]);
    688
    689	FWCMD_SET_ADDR_PORT_INT(cmd, rtwvif->port);
    690	FWCMD_SET_ADDR_TSF_SYNC(cmd, rtwvif->port);
    691	FWCMD_SET_ADDR_TF_TRS(cmd, rtwvif->trigger);
    692	FWCMD_SET_ADDR_LSIG_TXOP(cmd, rtwvif->lsig_txop);
    693	FWCMD_SET_ADDR_TGT_IND(cmd, rtwvif->tgt_ind);
    694	FWCMD_SET_ADDR_FRM_TGT_IND(cmd, rtwvif->frm_tgt_ind);
    695	FWCMD_SET_ADDR_MACID(cmd, rtwsta ? rtwsta->mac_id : rtwvif->mac_id);
    696	if (rtwvif->net_type == RTW89_NET_TYPE_INFRA)
    697		FWCMD_SET_ADDR_AID12(cmd, vif->bss_conf.aid & 0xfff);
    698	else if (rtwvif->net_type == RTW89_NET_TYPE_AP_MODE)
    699		FWCMD_SET_ADDR_AID12(cmd, sta ? sta->aid & 0xfff : 0);
    700	FWCMD_SET_ADDR_WOL_PATTERN(cmd, rtwvif->wowlan_pattern);
    701	FWCMD_SET_ADDR_WOL_UC(cmd, rtwvif->wowlan_uc);
    702	FWCMD_SET_ADDR_WOL_MAGIC(cmd, rtwvif->wowlan_magic);
    703	FWCMD_SET_ADDR_WAPI(cmd, addr_cam->wapi);
    704	FWCMD_SET_ADDR_SEC_ENT_MODE(cmd, addr_cam->sec_ent_mode);
    705	FWCMD_SET_ADDR_SEC_ENT0_KEYID(cmd, addr_cam->sec_ent_keyid[0]);
    706	FWCMD_SET_ADDR_SEC_ENT1_KEYID(cmd, addr_cam->sec_ent_keyid[1]);
    707	FWCMD_SET_ADDR_SEC_ENT2_KEYID(cmd, addr_cam->sec_ent_keyid[2]);
    708	FWCMD_SET_ADDR_SEC_ENT3_KEYID(cmd, addr_cam->sec_ent_keyid[3]);
    709	FWCMD_SET_ADDR_SEC_ENT4_KEYID(cmd, addr_cam->sec_ent_keyid[4]);
    710	FWCMD_SET_ADDR_SEC_ENT5_KEYID(cmd, addr_cam->sec_ent_keyid[5]);
    711	FWCMD_SET_ADDR_SEC_ENT6_KEYID(cmd, addr_cam->sec_ent_keyid[6]);
    712
    713	FWCMD_SET_ADDR_SEC_ENT_VALID(cmd, addr_cam->sec_cam_map[0] & 0xff);
    714	FWCMD_SET_ADDR_SEC_ENT0(cmd, addr_cam->sec_ent[0]);
    715	FWCMD_SET_ADDR_SEC_ENT1(cmd, addr_cam->sec_ent[1]);
    716	FWCMD_SET_ADDR_SEC_ENT2(cmd, addr_cam->sec_ent[2]);
    717	FWCMD_SET_ADDR_SEC_ENT3(cmd, addr_cam->sec_ent[3]);
    718	FWCMD_SET_ADDR_SEC_ENT4(cmd, addr_cam->sec_ent[4]);
    719	FWCMD_SET_ADDR_SEC_ENT5(cmd, addr_cam->sec_ent[5]);
    720	FWCMD_SET_ADDR_SEC_ENT6(cmd, addr_cam->sec_ent[6]);
    721}
    722
    723void rtw89_cam_fill_dctl_sec_cam_info_v1(struct rtw89_dev *rtwdev,
    724					 struct rtw89_vif *rtwvif,
    725					 struct rtw89_sta *rtwsta,
    726					 u8 *cmd)
    727{
    728	struct rtw89_addr_cam_entry *addr_cam = rtw89_get_addr_cam_of(rtwvif, rtwsta);
    729
    730	SET_DCTL_MACID_V1(cmd, rtwsta ? rtwsta->mac_id : rtwvif->mac_id);
    731	SET_DCTL_OPERATION_V1(cmd, 1);
    732
    733	SET_DCTL_SEC_ENT0_KEYID_V1(cmd, addr_cam->sec_ent_keyid[0]);
    734	SET_DCTL_SEC_ENT1_KEYID_V1(cmd, addr_cam->sec_ent_keyid[1]);
    735	SET_DCTL_SEC_ENT2_KEYID_V1(cmd, addr_cam->sec_ent_keyid[2]);
    736	SET_DCTL_SEC_ENT3_KEYID_V1(cmd, addr_cam->sec_ent_keyid[3]);
    737	SET_DCTL_SEC_ENT4_KEYID_V1(cmd, addr_cam->sec_ent_keyid[4]);
    738	SET_DCTL_SEC_ENT5_KEYID_V1(cmd, addr_cam->sec_ent_keyid[5]);
    739	SET_DCTL_SEC_ENT6_KEYID_V1(cmd, addr_cam->sec_ent_keyid[6]);
    740
    741	SET_DCTL_SEC_ENT_VALID_V1(cmd, addr_cam->sec_cam_map[0] & 0xff);
    742	SET_DCTL_SEC_ENT0_V1(cmd, addr_cam->sec_ent[0]);
    743	SET_DCTL_SEC_ENT1_V1(cmd, addr_cam->sec_ent[1]);
    744	SET_DCTL_SEC_ENT2_V1(cmd, addr_cam->sec_ent[2]);
    745	SET_DCTL_SEC_ENT3_V1(cmd, addr_cam->sec_ent[3]);
    746	SET_DCTL_SEC_ENT4_V1(cmd, addr_cam->sec_ent[4]);
    747	SET_DCTL_SEC_ENT5_V1(cmd, addr_cam->sec_ent[5]);
    748	SET_DCTL_SEC_ENT6_V1(cmd, addr_cam->sec_ent[6]);
    749}