18e99ea8dSJohannes Berg // SPDX-License-Identifier: GPL-2.0 OR BSD-3-Clause
28e99ea8dSJohannes Berg /*
31724fc78SEmmanuel Grumbach * Copyright (C) 2012-2015, 2018-2023 Intel Corporation
48e99ea8dSJohannes Berg * Copyright (C) 2013-2015 Intel Mobile Communications GmbH
58e99ea8dSJohannes Berg * Copyright (C) 2016-2017 Intel Deutschland GmbH
68e99ea8dSJohannes Berg */
7e705c121SKalle Valo #include <net/mac80211.h>
8e705c121SKalle Valo
9e705c121SKalle Valo #include "mvm.h"
10e705c121SKalle Valo #include "sta.h"
11e705c121SKalle Valo #include "rs.h"
12e705c121SKalle Valo
13854c5705SSara Sharon /*
14854c5705SSara Sharon * New version of ADD_STA_sta command added new fields at the end of the
15854c5705SSara Sharon * structure, so sending the size of the relevant API's structure is enough to
16854c5705SSara Sharon * support both API versions.
17854c5705SSara Sharon */
iwl_mvm_add_sta_cmd_size(struct iwl_mvm * mvm)18854c5705SSara Sharon static inline int iwl_mvm_add_sta_cmd_size(struct iwl_mvm *mvm)
19854c5705SSara Sharon {
20ced19f26SSara Sharon if (iwl_mvm_has_new_rx_api(mvm) ||
21ced19f26SSara Sharon fw_has_api(&mvm->fw->ucode_capa, IWL_UCODE_TLV_API_STA_TYPE))
22ced19f26SSara Sharon return sizeof(struct iwl_mvm_add_sta_cmd);
23ced19f26SSara Sharon else
24ced19f26SSara Sharon return sizeof(struct iwl_mvm_add_sta_cmd_v7);
25854c5705SSara Sharon }
26854c5705SSara Sharon
iwl_mvm_find_free_sta_id(struct iwl_mvm * mvm,enum nl80211_iftype iftype)2787f7e243SMiri Korenblit int iwl_mvm_find_free_sta_id(struct iwl_mvm *mvm, enum nl80211_iftype iftype)
28e705c121SKalle Valo {
29e705c121SKalle Valo int sta_id;
30e705c121SKalle Valo u32 reserved_ids = 0;
31e705c121SKalle Valo
32be9ae34eSNathan Errera BUILD_BUG_ON(IWL_MVM_STATION_COUNT_MAX > 32);
33e705c121SKalle Valo WARN_ON_ONCE(test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status));
34e705c121SKalle Valo
35e705c121SKalle Valo lockdep_assert_held(&mvm->mutex);
36e705c121SKalle Valo
37e705c121SKalle Valo /* d0i3/d3 assumes the AP's sta_id (of sta vif) is 0. reserve it. */
38e705c121SKalle Valo if (iftype != NL80211_IFTYPE_STATION)
39e705c121SKalle Valo reserved_ids = BIT(0);
40e705c121SKalle Valo
41e705c121SKalle Valo /* Don't take rcu_read_lock() since we are protected by mvm->mutex */
42be9ae34eSNathan Errera for (sta_id = 0; sta_id < mvm->fw->ucode_capa.num_stations; sta_id++) {
43e705c121SKalle Valo if (BIT(sta_id) & reserved_ids)
44e705c121SKalle Valo continue;
45e705c121SKalle Valo
46e705c121SKalle Valo if (!rcu_dereference_protected(mvm->fw_id_to_mac_id[sta_id],
47e705c121SKalle Valo lockdep_is_held(&mvm->mutex)))
48e705c121SKalle Valo return sta_id;
49e705c121SKalle Valo }
500ae98812SSara Sharon return IWL_MVM_INVALID_STA;
51e705c121SKalle Valo }
52e705c121SKalle Valo
5377b6a2e5SMiri Korenblit /* Calculate the ampdu density and max size */
iwl_mvm_get_sta_ampdu_dens(struct ieee80211_link_sta * link_sta,struct ieee80211_bss_conf * link_conf,u32 * _agg_size)5457974a55SGregory Greenman u32 iwl_mvm_get_sta_ampdu_dens(struct ieee80211_link_sta *link_sta,
5557974a55SGregory Greenman struct ieee80211_bss_conf *link_conf,
5657974a55SGregory Greenman u32 *_agg_size)
5777b6a2e5SMiri Korenblit {
5877b6a2e5SMiri Korenblit u32 agg_size = 0, mpdu_dens = 0;
5977b6a2e5SMiri Korenblit
6057974a55SGregory Greenman if (WARN_ON(!link_sta))
6157974a55SGregory Greenman return 0;
6277b6a2e5SMiri Korenblit
6300e48201SJohannes Berg /* Note that we always use only legacy & highest supported PPDUs, so
6400e48201SJohannes Berg * of Draft P802.11be D.30 Table 10-12a--Fields used for calculating
6500e48201SJohannes Berg * the maximum A-MPDU size of various PPDU types in different bands,
6600e48201SJohannes Berg * we only need to worry about the highest supported PPDU type here.
6700e48201SJohannes Berg */
6857974a55SGregory Greenman
6900e48201SJohannes Berg if (link_sta->ht_cap.ht_supported) {
7000e48201SJohannes Berg agg_size = link_sta->ht_cap.ampdu_factor;
7100e48201SJohannes Berg mpdu_dens = link_sta->ht_cap.ampdu_density;
7200e48201SJohannes Berg }
7300e48201SJohannes Berg
7400e48201SJohannes Berg if (link_conf->chandef.chan->band == NL80211_BAND_6GHZ) {
7500e48201SJohannes Berg /* overwrite HT values on 6 GHz */
7657974a55SGregory Greenman mpdu_dens = le16_get_bits(link_sta->he_6ghz_capa.capa,
7777b6a2e5SMiri Korenblit IEEE80211_HE_6GHZ_CAP_MIN_MPDU_START);
7857974a55SGregory Greenman agg_size = le16_get_bits(link_sta->he_6ghz_capa.capa,
7977b6a2e5SMiri Korenblit IEEE80211_HE_6GHZ_CAP_MAX_AMPDU_LEN_EXP);
8057974a55SGregory Greenman } else if (link_sta->vht_cap.vht_supported) {
8100e48201SJohannes Berg /* if VHT supported overwrite HT value */
8200e48201SJohannes Berg agg_size = u32_get_bits(link_sta->vht_cap.cap,
8300e48201SJohannes Berg IEEE80211_VHT_CAP_MAX_A_MPDU_LENGTH_EXPONENT_MASK);
8477b6a2e5SMiri Korenblit }
8577b6a2e5SMiri Korenblit
8677b6a2e5SMiri Korenblit /* D6.0 10.12.2 A-MPDU length limit rules
8777b6a2e5SMiri Korenblit * A STA indicates the maximum length of the A-MPDU preEOF padding
8877b6a2e5SMiri Korenblit * that it can receive in an HE PPDU in the Maximum A-MPDU Length
8977b6a2e5SMiri Korenblit * Exponent field in its HT Capabilities, VHT Capabilities,
9077b6a2e5SMiri Korenblit * and HE 6 GHz Band Capabilities elements (if present) and the
9177b6a2e5SMiri Korenblit * Maximum AMPDU Length Exponent Extension field in its HE
9277b6a2e5SMiri Korenblit * Capabilities element
9377b6a2e5SMiri Korenblit */
9457974a55SGregory Greenman if (link_sta->he_cap.has_he)
9577b6a2e5SMiri Korenblit agg_size +=
9657974a55SGregory Greenman u8_get_bits(link_sta->he_cap.he_cap_elem.mac_cap_info[3],
9777b6a2e5SMiri Korenblit IEEE80211_HE_MAC_CAP3_MAX_AMPDU_LEN_EXP_MASK);
9877b6a2e5SMiri Korenblit
9900e48201SJohannes Berg if (link_sta->eht_cap.has_eht)
10000e48201SJohannes Berg agg_size += u8_get_bits(link_sta->eht_cap.eht_cap_elem.mac_cap_info[1],
10100e48201SJohannes Berg IEEE80211_EHT_MAC_CAP1_MAX_AMPDU_LEN_MASK);
10200e48201SJohannes Berg
10377b6a2e5SMiri Korenblit /* Limit to max A-MPDU supported by FW */
104d51173c1SJohannes Berg agg_size = min_t(u32, agg_size,
105d51173c1SJohannes Berg STA_FLG_MAX_AGG_SIZE_4M >> STA_FLG_MAX_AGG_SIZE_SHIFT);
10677b6a2e5SMiri Korenblit
10777b6a2e5SMiri Korenblit *_agg_size = agg_size;
10877b6a2e5SMiri Korenblit return mpdu_dens;
10977b6a2e5SMiri Korenblit }
11077b6a2e5SMiri Korenblit
iwl_mvm_get_sta_uapsd_acs(struct ieee80211_sta * sta)11187f7e243SMiri Korenblit u8 iwl_mvm_get_sta_uapsd_acs(struct ieee80211_sta *sta)
11277b6a2e5SMiri Korenblit {
11377b6a2e5SMiri Korenblit u8 uapsd_acs = 0;
11477b6a2e5SMiri Korenblit
11577b6a2e5SMiri Korenblit if (sta->uapsd_queues & IEEE80211_WMM_IE_STA_QOSINFO_AC_BK)
11677b6a2e5SMiri Korenblit uapsd_acs |= BIT(AC_BK);
11777b6a2e5SMiri Korenblit if (sta->uapsd_queues & IEEE80211_WMM_IE_STA_QOSINFO_AC_BE)
11877b6a2e5SMiri Korenblit uapsd_acs |= BIT(AC_BE);
11977b6a2e5SMiri Korenblit if (sta->uapsd_queues & IEEE80211_WMM_IE_STA_QOSINFO_AC_VI)
12077b6a2e5SMiri Korenblit uapsd_acs |= BIT(AC_VI);
12177b6a2e5SMiri Korenblit if (sta->uapsd_queues & IEEE80211_WMM_IE_STA_QOSINFO_AC_VO)
12277b6a2e5SMiri Korenblit uapsd_acs |= BIT(AC_VO);
12377b6a2e5SMiri Korenblit
12477b6a2e5SMiri Korenblit return uapsd_acs | uapsd_acs << 4;
12577b6a2e5SMiri Korenblit }
12677b6a2e5SMiri Korenblit
127e705c121SKalle Valo /* send station add/update command to firmware */
iwl_mvm_sta_send_to_fw(struct iwl_mvm * mvm,struct ieee80211_sta * sta,bool update,unsigned int flags)128e705c121SKalle Valo int iwl_mvm_sta_send_to_fw(struct iwl_mvm *mvm, struct ieee80211_sta *sta,
12924afba76SLiad Kaufman bool update, unsigned int flags)
130e705c121SKalle Valo {
131e705c121SKalle Valo struct iwl_mvm_sta *mvm_sta = iwl_mvm_sta_from_mac80211(sta);
132e705c121SKalle Valo struct iwl_mvm_add_sta_cmd add_sta_cmd = {
133c8ee33e1SGregory Greenman .sta_id = mvm_sta->deflink.sta_id,
134e705c121SKalle Valo .mac_id_n_color = cpu_to_le32(mvm_sta->mac_id_n_color),
135e705c121SKalle Valo .add_modify = update ? 1 : 0,
136e705c121SKalle Valo .station_flags_msk = cpu_to_le32(STA_FLG_FAT_EN_MSK |
1378addabf8SNaftali Goldstein STA_FLG_MIMO_EN_MSK |
1388addabf8SNaftali Goldstein STA_FLG_RTS_MIMO_PROT),
139cf0cda19SLiad Kaufman .tid_disable_tx = cpu_to_le16(mvm_sta->tid_disable_agg),
140e705c121SKalle Valo };
141e705c121SKalle Valo int ret;
142e705c121SKalle Valo u32 status;
143e705c121SKalle Valo u32 agg_size = 0, mpdu_dens = 0;
144e705c121SKalle Valo
145ced19f26SSara Sharon if (fw_has_api(&mvm->fw->ucode_capa, IWL_UCODE_TLV_API_STA_TYPE))
146ced19f26SSara Sharon add_sta_cmd.station_type = mvm_sta->sta_type;
147ced19f26SSara Sharon
14824afba76SLiad Kaufman if (!update || (flags & STA_MODIFY_QUEUES)) {
149e705c121SKalle Valo memcpy(&add_sta_cmd.addr, sta->addr, ETH_ALEN);
15024afba76SLiad Kaufman
151bb49701bSSara Sharon if (!iwl_mvm_has_new_tx_api(mvm)) {
152bb49701bSSara Sharon add_sta_cmd.tfd_queue_msk =
153bb49701bSSara Sharon cpu_to_le32(mvm_sta->tfd_queue_msk);
154bb49701bSSara Sharon
15524afba76SLiad Kaufman if (flags & STA_MODIFY_QUEUES)
15624afba76SLiad Kaufman add_sta_cmd.modify_mask |= STA_MODIFY_QUEUES;
157bb49701bSSara Sharon } else {
158bb49701bSSara Sharon WARN_ON(flags & STA_MODIFY_QUEUES);
159bb49701bSSara Sharon }
160e705c121SKalle Valo }
161e705c121SKalle Valo
162046d2e7cSSriram R switch (sta->deflink.bandwidth) {
1635dca295dSIlan Peer case IEEE80211_STA_RX_BW_320:
164e705c121SKalle Valo case IEEE80211_STA_RX_BW_160:
165e705c121SKalle Valo add_sta_cmd.station_flags |= cpu_to_le32(STA_FLG_FAT_EN_160MHZ);
1665a2abdcaSGustavo A. R. Silva fallthrough;
167e705c121SKalle Valo case IEEE80211_STA_RX_BW_80:
168e705c121SKalle Valo add_sta_cmd.station_flags |= cpu_to_le32(STA_FLG_FAT_EN_80MHZ);
1695a2abdcaSGustavo A. R. Silva fallthrough;
170e705c121SKalle Valo case IEEE80211_STA_RX_BW_40:
171e705c121SKalle Valo add_sta_cmd.station_flags |= cpu_to_le32(STA_FLG_FAT_EN_40MHZ);
1725a2abdcaSGustavo A. R. Silva fallthrough;
173e705c121SKalle Valo case IEEE80211_STA_RX_BW_20:
174046d2e7cSSriram R if (sta->deflink.ht_cap.ht_supported)
175e705c121SKalle Valo add_sta_cmd.station_flags |=
176e705c121SKalle Valo cpu_to_le32(STA_FLG_FAT_EN_20MHZ);
177e705c121SKalle Valo break;
178e705c121SKalle Valo }
179e705c121SKalle Valo
180046d2e7cSSriram R switch (sta->deflink.rx_nss) {
181e705c121SKalle Valo case 1:
182e705c121SKalle Valo add_sta_cmd.station_flags |= cpu_to_le32(STA_FLG_MIMO_EN_SISO);
183e705c121SKalle Valo break;
184e705c121SKalle Valo case 2:
185e705c121SKalle Valo add_sta_cmd.station_flags |= cpu_to_le32(STA_FLG_MIMO_EN_MIMO2);
186e705c121SKalle Valo break;
187e705c121SKalle Valo case 3 ... 8:
188e705c121SKalle Valo add_sta_cmd.station_flags |= cpu_to_le32(STA_FLG_MIMO_EN_MIMO3);
189e705c121SKalle Valo break;
190e705c121SKalle Valo }
191e705c121SKalle Valo
192261ce887SBenjamin Berg switch (sta->deflink.smps_mode) {
193e705c121SKalle Valo case IEEE80211_SMPS_AUTOMATIC:
194e705c121SKalle Valo case IEEE80211_SMPS_NUM_MODES:
195e705c121SKalle Valo WARN_ON(1);
196e705c121SKalle Valo break;
197e705c121SKalle Valo case IEEE80211_SMPS_STATIC:
198e705c121SKalle Valo /* override NSS */
199e705c121SKalle Valo add_sta_cmd.station_flags &= ~cpu_to_le32(STA_FLG_MIMO_EN_MSK);
200e705c121SKalle Valo add_sta_cmd.station_flags |= cpu_to_le32(STA_FLG_MIMO_EN_SISO);
201e705c121SKalle Valo break;
202e705c121SKalle Valo case IEEE80211_SMPS_DYNAMIC:
203e705c121SKalle Valo add_sta_cmd.station_flags |= cpu_to_le32(STA_FLG_RTS_MIMO_PROT);
204e705c121SKalle Valo break;
205e705c121SKalle Valo case IEEE80211_SMPS_OFF:
206e705c121SKalle Valo /* nothing */
207e705c121SKalle Valo break;
208e705c121SKalle Valo }
209e705c121SKalle Valo
21077b6a2e5SMiri Korenblit if (sta->deflink.ht_cap.ht_supported ||
21177b6a2e5SMiri Korenblit mvm_sta->vif->bss_conf.chandef.chan->band == NL80211_BAND_6GHZ)
212e705c121SKalle Valo add_sta_cmd.station_flags_msk |=
213e705c121SKalle Valo cpu_to_le32(STA_FLG_MAX_AGG_SIZE_MSK |
214e705c121SKalle Valo STA_FLG_AGG_MPDU_DENS_MSK);
215e705c121SKalle Valo
21657974a55SGregory Greenman mpdu_dens = iwl_mvm_get_sta_ampdu_dens(&sta->deflink,
21757974a55SGregory Greenman &mvm_sta->vif->bss_conf,
21857974a55SGregory Greenman &agg_size);
219e705c121SKalle Valo add_sta_cmd.station_flags |=
220e705c121SKalle Valo cpu_to_le32(agg_size << STA_FLG_MAX_AGG_SIZE_SHIFT);
221e705c121SKalle Valo add_sta_cmd.station_flags |=
222e705c121SKalle Valo cpu_to_le32(mpdu_dens << STA_FLG_AGG_MPDU_DENS_SHIFT);
22377b6a2e5SMiri Korenblit
224d94c5a82SGregory Greenman if (mvm_sta->sta_state >= IEEE80211_STA_ASSOC)
22519c52f46SEmmanuel Grumbach add_sta_cmd.assoc_id = cpu_to_le16(sta->aid);
226e705c121SKalle Valo
22765e25482SJohannes Berg if (sta->wme) {
22865e25482SJohannes Berg add_sta_cmd.modify_mask |= STA_MODIFY_UAPSD_ACS;
22977b6a2e5SMiri Korenblit add_sta_cmd.uapsd_acs = iwl_mvm_get_sta_uapsd_acs(sta);
230e71ca5eaSEmmanuel Grumbach add_sta_cmd.sp_length = sta->max_sp ? sta->max_sp * 2 : 128;
23165e25482SJohannes Berg }
23265e25482SJohannes Berg
233e705c121SKalle Valo status = ADD_STA_SUCCESS;
234854c5705SSara Sharon ret = iwl_mvm_send_cmd_pdu_status(mvm, ADD_STA,
235854c5705SSara Sharon iwl_mvm_add_sta_cmd_size(mvm),
236e705c121SKalle Valo &add_sta_cmd, &status);
237e705c121SKalle Valo if (ret)
238e705c121SKalle Valo return ret;
239e705c121SKalle Valo
240837c4da9SSara Sharon switch (status & IWL_ADD_STA_STATUS_MASK) {
241e705c121SKalle Valo case ADD_STA_SUCCESS:
242e705c121SKalle Valo IWL_DEBUG_ASSOC(mvm, "ADD_STA PASSED\n");
243e705c121SKalle Valo break;
244e705c121SKalle Valo default:
245e705c121SKalle Valo ret = -EIO;
246e705c121SKalle Valo IWL_ERR(mvm, "ADD_STA failed\n");
247e705c121SKalle Valo break;
248e705c121SKalle Valo }
249e705c121SKalle Valo
250e705c121SKalle Valo return ret;
251e705c121SKalle Valo }
252e705c121SKalle Valo
iwl_mvm_rx_agg_session_expired(struct timer_list * t)2538cef5344SKees Cook static void iwl_mvm_rx_agg_session_expired(struct timer_list *t)
25410b2b201SSara Sharon {
2558cef5344SKees Cook struct iwl_mvm_baid_data *data =
2568cef5344SKees Cook from_timer(data, t, session_timer);
2578cef5344SKees Cook struct iwl_mvm_baid_data __rcu **rcu_ptr = data->rcu_ptr;
25810b2b201SSara Sharon struct iwl_mvm_baid_data *ba_data;
25910b2b201SSara Sharon struct ieee80211_sta *sta;
26010b2b201SSara Sharon struct iwl_mvm_sta *mvm_sta;
26110b2b201SSara Sharon unsigned long timeout;
2629aa3856dSJohannes Berg unsigned int sta_id;
26310b2b201SSara Sharon
26410b2b201SSara Sharon rcu_read_lock();
26510b2b201SSara Sharon
26610b2b201SSara Sharon ba_data = rcu_dereference(*rcu_ptr);
26710b2b201SSara Sharon
26810b2b201SSara Sharon if (WARN_ON(!ba_data))
26910b2b201SSara Sharon goto unlock;
27010b2b201SSara Sharon
27110b2b201SSara Sharon if (!ba_data->timeout)
27210b2b201SSara Sharon goto unlock;
27310b2b201SSara Sharon
27410b2b201SSara Sharon timeout = ba_data->last_rx + TU_TO_JIFFIES(ba_data->timeout * 2);
27510b2b201SSara Sharon if (time_is_after_jiffies(timeout)) {
27610b2b201SSara Sharon mod_timer(&ba_data->session_timer, timeout);
27710b2b201SSara Sharon goto unlock;
27810b2b201SSara Sharon }
27910b2b201SSara Sharon
28010b2b201SSara Sharon /* Timer expired */
2819aa3856dSJohannes Berg sta_id = ffs(ba_data->sta_mask) - 1; /* don't care which one */
2829aa3856dSJohannes Berg sta = rcu_dereference(ba_data->mvm->fw_id_to_mac_id[sta_id]);
28361dd8a8aSEmmanuel Grumbach
28461dd8a8aSEmmanuel Grumbach /*
28561dd8a8aSEmmanuel Grumbach * sta should be valid unless the following happens:
28661dd8a8aSEmmanuel Grumbach * The firmware asserts which triggers a reconfig flow, but
28761dd8a8aSEmmanuel Grumbach * the reconfig fails before we set the pointer to sta into
28861dd8a8aSEmmanuel Grumbach * the fw_id_to_mac_id pointer table. Mac80211 can't stop
28961dd8a8aSEmmanuel Grumbach * A-MDPU and hence the timer continues to run. Then, the
29061dd8a8aSEmmanuel Grumbach * timer expires and sta is NULL.
29161dd8a8aSEmmanuel Grumbach */
29268182662SGregory Greenman if (IS_ERR_OR_NULL(sta))
29361dd8a8aSEmmanuel Grumbach goto unlock;
29461dd8a8aSEmmanuel Grumbach
29510b2b201SSara Sharon mvm_sta = iwl_mvm_sta_from_mac80211(sta);
29620fc690fSNaftali Goldstein ieee80211_rx_ba_timer_expired(mvm_sta->vif,
29710b2b201SSara Sharon sta->addr, ba_data->tid);
29810b2b201SSara Sharon unlock:
29910b2b201SSara Sharon rcu_read_unlock();
30010b2b201SSara Sharon }
30110b2b201SSara Sharon
3029794c64fSLiad Kaufman /* Disable aggregations for a bitmap of TIDs for a given station */
iwl_mvm_invalidate_sta_queue(struct iwl_mvm * mvm,int queue,unsigned long disable_agg_tids,bool remove_queue)3039794c64fSLiad Kaufman static int iwl_mvm_invalidate_sta_queue(struct iwl_mvm *mvm, int queue,
3049794c64fSLiad Kaufman unsigned long disable_agg_tids,
3059794c64fSLiad Kaufman bool remove_queue)
3069794c64fSLiad Kaufman {
3079794c64fSLiad Kaufman struct iwl_mvm_add_sta_cmd cmd = {};
3089794c64fSLiad Kaufman struct ieee80211_sta *sta;
3099794c64fSLiad Kaufman struct iwl_mvm_sta *mvmsta;
3109794c64fSLiad Kaufman u32 status;
3119794c64fSLiad Kaufman u8 sta_id;
3129794c64fSLiad Kaufman
313bb49701bSSara Sharon if (WARN_ON(iwl_mvm_has_new_tx_api(mvm)))
314bb49701bSSara Sharon return -EINVAL;
315bb49701bSSara Sharon
3169794c64fSLiad Kaufman sta_id = mvm->queue_info[queue].ra_sta_id;
3179794c64fSLiad Kaufman
3189794c64fSLiad Kaufman rcu_read_lock();
3199794c64fSLiad Kaufman
3209794c64fSLiad Kaufman sta = rcu_dereference(mvm->fw_id_to_mac_id[sta_id]);
3219794c64fSLiad Kaufman
3229794c64fSLiad Kaufman if (WARN_ON_ONCE(IS_ERR_OR_NULL(sta))) {
3239794c64fSLiad Kaufman rcu_read_unlock();
3249794c64fSLiad Kaufman return -EINVAL;
3259794c64fSLiad Kaufman }
3269794c64fSLiad Kaufman
3279794c64fSLiad Kaufman mvmsta = iwl_mvm_sta_from_mac80211(sta);
3289794c64fSLiad Kaufman
3299794c64fSLiad Kaufman mvmsta->tid_disable_agg |= disable_agg_tids;
3309794c64fSLiad Kaufman
3319794c64fSLiad Kaufman cmd.mac_id_n_color = cpu_to_le32(mvmsta->mac_id_n_color);
332c8ee33e1SGregory Greenman cmd.sta_id = mvmsta->deflink.sta_id;
3339794c64fSLiad Kaufman cmd.add_modify = STA_MODE_MODIFY;
3349794c64fSLiad Kaufman cmd.modify_mask = STA_MODIFY_QUEUES;
3359794c64fSLiad Kaufman if (disable_agg_tids)
3369794c64fSLiad Kaufman cmd.modify_mask |= STA_MODIFY_TID_DISABLE_TX;
3379794c64fSLiad Kaufman if (remove_queue)
3389794c64fSLiad Kaufman cmd.modify_mask |= STA_MODIFY_QUEUE_REMOVAL;
3399794c64fSLiad Kaufman cmd.tfd_queue_msk = cpu_to_le32(mvmsta->tfd_queue_msk);
3409794c64fSLiad Kaufman cmd.tid_disable_tx = cpu_to_le16(mvmsta->tid_disable_agg);
3419794c64fSLiad Kaufman
3429794c64fSLiad Kaufman rcu_read_unlock();
3439794c64fSLiad Kaufman
3449794c64fSLiad Kaufman /* Notify FW of queue removal from the STA queues */
3459794c64fSLiad Kaufman status = ADD_STA_SUCCESS;
346b2c1bf59SSara Sharon return iwl_mvm_send_cmd_pdu_status(mvm, ADD_STA,
3479794c64fSLiad Kaufman iwl_mvm_add_sta_cmd_size(mvm),
3489794c64fSLiad Kaufman &cmd, &status);
3499794c64fSLiad Kaufman }
3509794c64fSLiad Kaufman
iwl_mvm_disable_txq(struct iwl_mvm * mvm,struct ieee80211_sta * sta,int sta_id,u16 * queueptr,u8 tid)351cfbc6c4cSSara Sharon static int iwl_mvm_disable_txq(struct iwl_mvm *mvm, struct ieee80211_sta *sta,
352c5a976cfSJohannes Berg int sta_id, u16 *queueptr, u8 tid)
35399448a8cSJohannes Berg {
354c6ce1c74SJohannes Berg int queue = *queueptr;
35599448a8cSJohannes Berg struct iwl_scd_txq_cfg_cmd cmd = {
35699448a8cSJohannes Berg .scd_queue = queue,
35799448a8cSJohannes Berg .action = SCD_CFG_DISABLE_QUEUE,
35899448a8cSJohannes Berg };
35999448a8cSJohannes Berg int ret;
36099448a8cSJohannes Berg
361227f2597SJohannes Berg lockdep_assert_held(&mvm->mutex);
362227f2597SJohannes Berg
36399448a8cSJohannes Berg if (iwl_mvm_has_new_tx_api(mvm)) {
364227f2597SJohannes Berg if (mvm->sta_remove_requires_queue_remove) {
365227f2597SJohannes Berg u32 cmd_id = WIDE_ID(DATA_PATH_GROUP,
366227f2597SJohannes Berg SCD_QUEUE_CONFIG_CMD);
367227f2597SJohannes Berg struct iwl_scd_queue_cfg_cmd remove_cmd = {
368227f2597SJohannes Berg .operation = cpu_to_le32(IWL_SCD_QUEUE_REMOVE),
369c5a976cfSJohannes Berg .u.remove.sta_mask = cpu_to_le32(BIT(sta_id)),
370227f2597SJohannes Berg };
371227f2597SJohannes Berg
372925c6a40SJohannes Berg if (tid == IWL_MAX_TID_COUNT)
373925c6a40SJohannes Berg tid = IWL_MGMT_TID;
374925c6a40SJohannes Berg
375925c6a40SJohannes Berg remove_cmd.u.remove.tid = cpu_to_le32(tid);
376925c6a40SJohannes Berg
377227f2597SJohannes Berg ret = iwl_mvm_send_cmd_pdu(mvm, cmd_id, 0,
378227f2597SJohannes Berg sizeof(remove_cmd),
379227f2597SJohannes Berg &remove_cmd);
380227f2597SJohannes Berg } else {
381227f2597SJohannes Berg ret = 0;
382227f2597SJohannes Berg }
383227f2597SJohannes Berg
38499448a8cSJohannes Berg iwl_trans_txq_free(mvm->trans, queue);
385c6ce1c74SJohannes Berg *queueptr = IWL_MVM_INVALID_QUEUE;
38699448a8cSJohannes Berg
387227f2597SJohannes Berg return ret;
38899448a8cSJohannes Berg }
38999448a8cSJohannes Berg
390f3f240f9SJohannes Berg if (WARN_ON(mvm->queue_info[queue].tid_bitmap == 0))
39199448a8cSJohannes Berg return 0;
39299448a8cSJohannes Berg
39399448a8cSJohannes Berg mvm->queue_info[queue].tid_bitmap &= ~BIT(tid);
39499448a8cSJohannes Berg
3951c14089eSJohannes Berg cmd.action = mvm->queue_info[queue].tid_bitmap ?
39699448a8cSJohannes Berg SCD_CFG_ENABLE_QUEUE : SCD_CFG_DISABLE_QUEUE;
39799448a8cSJohannes Berg if (cmd.action == SCD_CFG_DISABLE_QUEUE)
39899448a8cSJohannes Berg mvm->queue_info[queue].status = IWL_MVM_QUEUE_FREE;
39999448a8cSJohannes Berg
40099448a8cSJohannes Berg IWL_DEBUG_TX_QUEUES(mvm,
401cfbc6c4cSSara Sharon "Disabling TXQ #%d tids=0x%x\n",
40299448a8cSJohannes Berg queue,
403cfbc6c4cSSara Sharon mvm->queue_info[queue].tid_bitmap);
40499448a8cSJohannes Berg
40599448a8cSJohannes Berg /* If the queue is still enabled - nothing left to do in this func */
406f3f240f9SJohannes Berg if (cmd.action == SCD_CFG_ENABLE_QUEUE)
40799448a8cSJohannes Berg return 0;
40899448a8cSJohannes Berg
40999448a8cSJohannes Berg cmd.sta_id = mvm->queue_info[queue].ra_sta_id;
41099448a8cSJohannes Berg cmd.tid = mvm->queue_info[queue].txq_tid;
41199448a8cSJohannes Berg
41299448a8cSJohannes Berg /* Make sure queue info is correct even though we overwrite it */
413cfbc6c4cSSara Sharon WARN(mvm->queue_info[queue].tid_bitmap,
414cfbc6c4cSSara Sharon "TXQ #%d info out-of-sync - tids=0x%x\n",
415cfbc6c4cSSara Sharon queue, mvm->queue_info[queue].tid_bitmap);
41699448a8cSJohannes Berg
41799448a8cSJohannes Berg /* If we are here - the queue is freed and we can zero out these vals */
41899448a8cSJohannes Berg mvm->queue_info[queue].tid_bitmap = 0;
419cfbc6c4cSSara Sharon
420cfbc6c4cSSara Sharon if (sta) {
421cfbc6c4cSSara Sharon struct iwl_mvm_txq *mvmtxq =
422cfbc6c4cSSara Sharon iwl_mvm_txq_from_tid(sta, tid);
423cfbc6c4cSSara Sharon
424923bf981SJohannes Berg spin_lock_bh(&mvm->add_stream_lock);
42595b0f666SJose Ignacio Tornos Martinez list_del_init(&mvmtxq->list);
426923bf981SJohannes Berg clear_bit(IWL_MVM_TXQ_STATE_READY, &mvmtxq->state);
427923bf981SJohannes Berg mvmtxq->txq_id = IWL_MVM_INVALID_QUEUE;
428923bf981SJohannes Berg spin_unlock_bh(&mvm->add_stream_lock);
429cfbc6c4cSSara Sharon }
43099448a8cSJohannes Berg
43199448a8cSJohannes Berg /* Regardless if this is a reserved TXQ for a STA - mark it as false */
43299448a8cSJohannes Berg mvm->queue_info[queue].reserved = false;
43399448a8cSJohannes Berg
43499448a8cSJohannes Berg iwl_trans_txq_disable(mvm->trans, queue, false);
43564ff7eb0SJohannes Berg ret = iwl_mvm_send_cmd_pdu(mvm, SCD_QUEUE_CFG, 0,
43699448a8cSJohannes Berg sizeof(struct iwl_scd_txq_cfg_cmd), &cmd);
43799448a8cSJohannes Berg
43899448a8cSJohannes Berg if (ret)
43999448a8cSJohannes Berg IWL_ERR(mvm, "Failed to disable queue %d (ret=%d)\n",
44099448a8cSJohannes Berg queue, ret);
44199448a8cSJohannes Berg return ret;
44299448a8cSJohannes Berg }
44399448a8cSJohannes Berg
iwl_mvm_get_queue_agg_tids(struct iwl_mvm * mvm,int queue)44442db09c1SLiad Kaufman static int iwl_mvm_get_queue_agg_tids(struct iwl_mvm *mvm, int queue)
44542db09c1SLiad Kaufman {
44642db09c1SLiad Kaufman struct ieee80211_sta *sta;
44742db09c1SLiad Kaufman struct iwl_mvm_sta *mvmsta;
44842db09c1SLiad Kaufman unsigned long tid_bitmap;
44942db09c1SLiad Kaufman unsigned long agg_tids = 0;
450806911daSSharon Dvir u8 sta_id;
45142db09c1SLiad Kaufman int tid;
45242db09c1SLiad Kaufman
45342db09c1SLiad Kaufman lockdep_assert_held(&mvm->mutex);
45442db09c1SLiad Kaufman
455bb49701bSSara Sharon if (WARN_ON(iwl_mvm_has_new_tx_api(mvm)))
456bb49701bSSara Sharon return -EINVAL;
457bb49701bSSara Sharon
45842db09c1SLiad Kaufman sta_id = mvm->queue_info[queue].ra_sta_id;
45942db09c1SLiad Kaufman tid_bitmap = mvm->queue_info[queue].tid_bitmap;
46042db09c1SLiad Kaufman
46142db09c1SLiad Kaufman sta = rcu_dereference_protected(mvm->fw_id_to_mac_id[sta_id],
46242db09c1SLiad Kaufman lockdep_is_held(&mvm->mutex));
46342db09c1SLiad Kaufman
46442db09c1SLiad Kaufman if (WARN_ON_ONCE(IS_ERR_OR_NULL(sta)))
46542db09c1SLiad Kaufman return -EINVAL;
46642db09c1SLiad Kaufman
46742db09c1SLiad Kaufman mvmsta = iwl_mvm_sta_from_mac80211(sta);
46842db09c1SLiad Kaufman
46942db09c1SLiad Kaufman spin_lock_bh(&mvmsta->lock);
47042db09c1SLiad Kaufman for_each_set_bit(tid, &tid_bitmap, IWL_MAX_TID_COUNT + 1) {
47142db09c1SLiad Kaufman if (mvmsta->tid_data[tid].state == IWL_AGG_ON)
47242db09c1SLiad Kaufman agg_tids |= BIT(tid);
47342db09c1SLiad Kaufman }
47442db09c1SLiad Kaufman spin_unlock_bh(&mvmsta->lock);
47542db09c1SLiad Kaufman
47642db09c1SLiad Kaufman return agg_tids;
47742db09c1SLiad Kaufman }
47842db09c1SLiad Kaufman
4799794c64fSLiad Kaufman /*
4809794c64fSLiad Kaufman * Remove a queue from a station's resources.
4819794c64fSLiad Kaufman * Note that this only marks as free. It DOESN'T delete a BA agreement, and
4829794c64fSLiad Kaufman * doesn't disable the queue
4839794c64fSLiad Kaufman */
iwl_mvm_remove_sta_queue_marking(struct iwl_mvm * mvm,int queue)4849794c64fSLiad Kaufman static int iwl_mvm_remove_sta_queue_marking(struct iwl_mvm *mvm, int queue)
4859794c64fSLiad Kaufman {
4869794c64fSLiad Kaufman struct ieee80211_sta *sta;
4879794c64fSLiad Kaufman struct iwl_mvm_sta *mvmsta;
4889794c64fSLiad Kaufman unsigned long tid_bitmap;
4899794c64fSLiad Kaufman unsigned long disable_agg_tids = 0;
4909794c64fSLiad Kaufman u8 sta_id;
4919794c64fSLiad Kaufman int tid;
4929794c64fSLiad Kaufman
4939794c64fSLiad Kaufman lockdep_assert_held(&mvm->mutex);
4949794c64fSLiad Kaufman
495bb49701bSSara Sharon if (WARN_ON(iwl_mvm_has_new_tx_api(mvm)))
496bb49701bSSara Sharon return -EINVAL;
497bb49701bSSara Sharon
4989794c64fSLiad Kaufman sta_id = mvm->queue_info[queue].ra_sta_id;
4999794c64fSLiad Kaufman tid_bitmap = mvm->queue_info[queue].tid_bitmap;
5009794c64fSLiad Kaufman
5019794c64fSLiad Kaufman rcu_read_lock();
5029794c64fSLiad Kaufman
5039794c64fSLiad Kaufman sta = rcu_dereference(mvm->fw_id_to_mac_id[sta_id]);
5049794c64fSLiad Kaufman
5059794c64fSLiad Kaufman if (WARN_ON_ONCE(IS_ERR_OR_NULL(sta))) {
5069794c64fSLiad Kaufman rcu_read_unlock();
5079794c64fSLiad Kaufman return 0;
5089794c64fSLiad Kaufman }
5099794c64fSLiad Kaufman
5109794c64fSLiad Kaufman mvmsta = iwl_mvm_sta_from_mac80211(sta);
5119794c64fSLiad Kaufman
5129794c64fSLiad Kaufman spin_lock_bh(&mvmsta->lock);
51342db09c1SLiad Kaufman /* Unmap MAC queues and TIDs from this queue */
5149794c64fSLiad Kaufman for_each_set_bit(tid, &tid_bitmap, IWL_MAX_TID_COUNT + 1) {
515cfbc6c4cSSara Sharon struct iwl_mvm_txq *mvmtxq =
516cfbc6c4cSSara Sharon iwl_mvm_txq_from_tid(sta, tid);
517cfbc6c4cSSara Sharon
5189794c64fSLiad Kaufman if (mvmsta->tid_data[tid].state == IWL_AGG_ON)
5199794c64fSLiad Kaufman disable_agg_tids |= BIT(tid);
5206862fceeSSara Sharon mvmsta->tid_data[tid].txq_id = IWL_MVM_INVALID_QUEUE;
521cfbc6c4cSSara Sharon
522923bf981SJohannes Berg spin_lock_bh(&mvm->add_stream_lock);
52395b0f666SJose Ignacio Tornos Martinez list_del_init(&mvmtxq->list);
524923bf981SJohannes Berg clear_bit(IWL_MVM_TXQ_STATE_READY, &mvmtxq->state);
525923bf981SJohannes Berg mvmtxq->txq_id = IWL_MVM_INVALID_QUEUE;
526923bf981SJohannes Berg spin_unlock_bh(&mvm->add_stream_lock);
5279794c64fSLiad Kaufman }
5289794c64fSLiad Kaufman
52942db09c1SLiad Kaufman mvmsta->tfd_queue_msk &= ~BIT(queue); /* Don't use this queue anymore */
5309794c64fSLiad Kaufman spin_unlock_bh(&mvmsta->lock);
5319794c64fSLiad Kaufman
5329794c64fSLiad Kaufman rcu_read_unlock();
5339794c64fSLiad Kaufman
53406bc6f6eSJohannes Berg /*
53506bc6f6eSJohannes Berg * The TX path may have been using this TXQ_ID from the tid_data,
53606bc6f6eSJohannes Berg * so make sure it's no longer running so that we can safely reuse
53706bc6f6eSJohannes Berg * this TXQ later. We've set all the TIDs to IWL_MVM_INVALID_QUEUE
53806bc6f6eSJohannes Berg * above, but nothing guarantees we've stopped using them. Thus,
53906bc6f6eSJohannes Berg * without this, we could get to iwl_mvm_disable_txq() and remove
54006bc6f6eSJohannes Berg * the queue while still sending frames to it.
54106bc6f6eSJohannes Berg */
54206bc6f6eSJohannes Berg synchronize_net();
54306bc6f6eSJohannes Berg
5449794c64fSLiad Kaufman return disable_agg_tids;
5459794c64fSLiad Kaufman }
5469794c64fSLiad Kaufman
iwl_mvm_free_inactive_queue(struct iwl_mvm * mvm,int queue,struct ieee80211_sta * old_sta,u8 new_sta_id)54701796ff2SSara Sharon static int iwl_mvm_free_inactive_queue(struct iwl_mvm *mvm, int queue,
548cfbc6c4cSSara Sharon struct ieee80211_sta *old_sta,
549724fe771SJohannes Berg u8 new_sta_id)
55001796ff2SSara Sharon {
55101796ff2SSara Sharon struct iwl_mvm_sta *mvmsta;
552cfbc6c4cSSara Sharon u8 sta_id, tid;
55301796ff2SSara Sharon unsigned long disable_agg_tids = 0;
554724fe771SJohannes Berg bool same_sta;
555c6ce1c74SJohannes Berg u16 queue_tmp = queue;
55601796ff2SSara Sharon int ret;
55701796ff2SSara Sharon
55801796ff2SSara Sharon lockdep_assert_held(&mvm->mutex);
55901796ff2SSara Sharon
560bb49701bSSara Sharon if (WARN_ON(iwl_mvm_has_new_tx_api(mvm)))
561bb49701bSSara Sharon return -EINVAL;
562bb49701bSSara Sharon
56301796ff2SSara Sharon sta_id = mvm->queue_info[queue].ra_sta_id;
56401796ff2SSara Sharon tid = mvm->queue_info[queue].txq_tid;
56501796ff2SSara Sharon
566724fe771SJohannes Berg same_sta = sta_id == new_sta_id;
567724fe771SJohannes Berg
56801796ff2SSara Sharon mvmsta = iwl_mvm_sta_from_staid_protected(mvm, sta_id);
569e3df1e4bSSharon Dvir if (WARN_ON(!mvmsta))
570e3df1e4bSSharon Dvir return -EINVAL;
57101796ff2SSara Sharon
57201796ff2SSara Sharon disable_agg_tids = iwl_mvm_remove_sta_queue_marking(mvm, queue);
57301796ff2SSara Sharon /* Disable the queue */
57401796ff2SSara Sharon if (disable_agg_tids)
57501796ff2SSara Sharon iwl_mvm_invalidate_sta_queue(mvm, queue,
57601796ff2SSara Sharon disable_agg_tids, false);
57701796ff2SSara Sharon
578c5a976cfSJohannes Berg ret = iwl_mvm_disable_txq(mvm, old_sta, sta_id, &queue_tmp, tid);
57901796ff2SSara Sharon if (ret) {
58001796ff2SSara Sharon IWL_ERR(mvm,
58101796ff2SSara Sharon "Failed to free inactive queue %d (ret=%d)\n",
58201796ff2SSara Sharon queue, ret);
58301796ff2SSara Sharon
58401796ff2SSara Sharon return ret;
58501796ff2SSara Sharon }
58601796ff2SSara Sharon
58701796ff2SSara Sharon /* If TXQ is allocated to another STA, update removal in FW */
58801796ff2SSara Sharon if (!same_sta)
58901796ff2SSara Sharon iwl_mvm_invalidate_sta_queue(mvm, queue, 0, true);
59001796ff2SSara Sharon
59101796ff2SSara Sharon return 0;
59201796ff2SSara Sharon }
59301796ff2SSara Sharon
iwl_mvm_get_shared_queue(struct iwl_mvm * mvm,unsigned long tfd_queue_mask,u8 ac)59442db09c1SLiad Kaufman static int iwl_mvm_get_shared_queue(struct iwl_mvm *mvm,
59542db09c1SLiad Kaufman unsigned long tfd_queue_mask, u8 ac)
59642db09c1SLiad Kaufman {
59742db09c1SLiad Kaufman int queue = 0;
59842db09c1SLiad Kaufman u8 ac_to_queue[IEEE80211_NUM_ACS];
59942db09c1SLiad Kaufman int i;
60042db09c1SLiad Kaufman
60190d2d94cSJohannes Berg /*
60290d2d94cSJohannes Berg * This protects us against grabbing a queue that's being reconfigured
60390d2d94cSJohannes Berg * by the inactivity checker.
60490d2d94cSJohannes Berg */
60590d2d94cSJohannes Berg lockdep_assert_held(&mvm->mutex);
60690d2d94cSJohannes Berg
607bb49701bSSara Sharon if (WARN_ON(iwl_mvm_has_new_tx_api(mvm)))
608bb49701bSSara Sharon return -EINVAL;
60942db09c1SLiad Kaufman
61042db09c1SLiad Kaufman memset(&ac_to_queue, IEEE80211_INVAL_HW_QUEUE, sizeof(ac_to_queue));
61142db09c1SLiad Kaufman
61242db09c1SLiad Kaufman /* See what ACs the existing queues for this STA have */
61342db09c1SLiad Kaufman for_each_set_bit(i, &tfd_queue_mask, IWL_MVM_DQA_MAX_DATA_QUEUE) {
61442db09c1SLiad Kaufman /* Only DATA queues can be shared */
61542db09c1SLiad Kaufman if (i < IWL_MVM_DQA_MIN_DATA_QUEUE &&
61642db09c1SLiad Kaufman i != IWL_MVM_DQA_BSS_CLIENT_QUEUE)
61742db09c1SLiad Kaufman continue;
61842db09c1SLiad Kaufman
61942db09c1SLiad Kaufman ac_to_queue[mvm->queue_info[i].mac80211_ac] = i;
62042db09c1SLiad Kaufman }
62142db09c1SLiad Kaufman
62242db09c1SLiad Kaufman /*
62342db09c1SLiad Kaufman * The queue to share is chosen only from DATA queues as follows (in
62442db09c1SLiad Kaufman * descending priority):
62542db09c1SLiad Kaufman * 1. An AC_BE queue
62642db09c1SLiad Kaufman * 2. Same AC queue
62742db09c1SLiad Kaufman * 3. Highest AC queue that is lower than new AC
62842db09c1SLiad Kaufman * 4. Any existing AC (there always is at least 1 DATA queue)
62942db09c1SLiad Kaufman */
63042db09c1SLiad Kaufman
63142db09c1SLiad Kaufman /* Priority 1: An AC_BE queue */
63242db09c1SLiad Kaufman if (ac_to_queue[IEEE80211_AC_BE] != IEEE80211_INVAL_HW_QUEUE)
63342db09c1SLiad Kaufman queue = ac_to_queue[IEEE80211_AC_BE];
63442db09c1SLiad Kaufman /* Priority 2: Same AC queue */
63542db09c1SLiad Kaufman else if (ac_to_queue[ac] != IEEE80211_INVAL_HW_QUEUE)
63642db09c1SLiad Kaufman queue = ac_to_queue[ac];
63742db09c1SLiad Kaufman /* Priority 3a: If new AC is VO and VI exists - use VI */
63842db09c1SLiad Kaufman else if (ac == IEEE80211_AC_VO &&
63942db09c1SLiad Kaufman ac_to_queue[IEEE80211_AC_VI] != IEEE80211_INVAL_HW_QUEUE)
64042db09c1SLiad Kaufman queue = ac_to_queue[IEEE80211_AC_VI];
64142db09c1SLiad Kaufman /* Priority 3b: No BE so only AC less than the new one is BK */
64242db09c1SLiad Kaufman else if (ac_to_queue[IEEE80211_AC_BK] != IEEE80211_INVAL_HW_QUEUE)
64342db09c1SLiad Kaufman queue = ac_to_queue[IEEE80211_AC_BK];
64442db09c1SLiad Kaufman /* Priority 4a: No BE nor BK - use VI if exists */
64542db09c1SLiad Kaufman else if (ac_to_queue[IEEE80211_AC_VI] != IEEE80211_INVAL_HW_QUEUE)
64642db09c1SLiad Kaufman queue = ac_to_queue[IEEE80211_AC_VI];
64742db09c1SLiad Kaufman /* Priority 4b: No BE, BK nor VI - use VO if exists */
64842db09c1SLiad Kaufman else if (ac_to_queue[IEEE80211_AC_VO] != IEEE80211_INVAL_HW_QUEUE)
64942db09c1SLiad Kaufman queue = ac_to_queue[IEEE80211_AC_VO];
65042db09c1SLiad Kaufman
65142db09c1SLiad Kaufman /* Make sure queue found (or not) is legal */
6529f9af3d7SLiad Kaufman if (!iwl_mvm_is_dqa_data_queue(mvm, queue) &&
6539f9af3d7SLiad Kaufman !iwl_mvm_is_dqa_mgmt_queue(mvm, queue) &&
6549f9af3d7SLiad Kaufman (queue != IWL_MVM_DQA_BSS_CLIENT_QUEUE)) {
65542db09c1SLiad Kaufman IWL_ERR(mvm, "No DATA queues available to share\n");
6569f9af3d7SLiad Kaufman return -ENOSPC;
6579f9af3d7SLiad Kaufman }
6589f9af3d7SLiad Kaufman
65942db09c1SLiad Kaufman return queue;
66042db09c1SLiad Kaufman }
66142db09c1SLiad Kaufman
662a54844d4SJohannes Berg /* Re-configure the SCD for a queue that has already been configured */
iwl_mvm_reconfig_scd(struct iwl_mvm * mvm,int queue,int fifo,int sta_id,int tid,int frame_limit,u16 ssn)663a54844d4SJohannes Berg static int iwl_mvm_reconfig_scd(struct iwl_mvm *mvm, int queue, int fifo,
664a54844d4SJohannes Berg int sta_id, int tid, int frame_limit, u16 ssn)
665a54844d4SJohannes Berg {
666a54844d4SJohannes Berg struct iwl_scd_txq_cfg_cmd cmd = {
667a54844d4SJohannes Berg .scd_queue = queue,
668a54844d4SJohannes Berg .action = SCD_CFG_ENABLE_QUEUE,
669a54844d4SJohannes Berg .window = frame_limit,
670a54844d4SJohannes Berg .sta_id = sta_id,
671a54844d4SJohannes Berg .ssn = cpu_to_le16(ssn),
672a54844d4SJohannes Berg .tx_fifo = fifo,
673a54844d4SJohannes Berg .aggregate = (queue >= IWL_MVM_DQA_MIN_DATA_QUEUE ||
674a54844d4SJohannes Berg queue == IWL_MVM_DQA_BSS_CLIENT_QUEUE),
675a54844d4SJohannes Berg .tid = tid,
676a54844d4SJohannes Berg };
677a54844d4SJohannes Berg int ret;
678a54844d4SJohannes Berg
679a54844d4SJohannes Berg if (WARN_ON(iwl_mvm_has_new_tx_api(mvm)))
680a54844d4SJohannes Berg return -EINVAL;
681a54844d4SJohannes Berg
682a54844d4SJohannes Berg if (WARN(mvm->queue_info[queue].tid_bitmap == 0,
683a54844d4SJohannes Berg "Trying to reconfig unallocated queue %d\n", queue))
684a54844d4SJohannes Berg return -ENXIO;
685a54844d4SJohannes Berg
686a54844d4SJohannes Berg IWL_DEBUG_TX_QUEUES(mvm, "Reconfig SCD for TXQ #%d\n", queue);
687a54844d4SJohannes Berg
688a54844d4SJohannes Berg ret = iwl_mvm_send_cmd_pdu(mvm, SCD_QUEUE_CFG, 0, sizeof(cmd), &cmd);
689a54844d4SJohannes Berg WARN_ONCE(ret, "Failed to re-configure queue %d on FIFO %d, ret=%d\n",
690a54844d4SJohannes Berg queue, fifo, ret);
691a54844d4SJohannes Berg
692a54844d4SJohannes Berg return ret;
693a54844d4SJohannes Berg }
694a54844d4SJohannes Berg
69558f2cc57SLiad Kaufman /*
6969f9af3d7SLiad Kaufman * If a given queue has a higher AC than the TID stream that is being compared
6979f9af3d7SLiad Kaufman * to, the queue needs to be redirected to the lower AC. This function does that
69858f2cc57SLiad Kaufman * in such a case, otherwise - if no redirection required - it does nothing,
69958f2cc57SLiad Kaufman * unless the %force param is true.
70058f2cc57SLiad Kaufman */
iwl_mvm_redirect_queue(struct iwl_mvm * mvm,int queue,int tid,int ac,int ssn,unsigned int wdg_timeout,bool force,struct iwl_mvm_txq * txq)701cfbc6c4cSSara Sharon static int iwl_mvm_redirect_queue(struct iwl_mvm *mvm, int queue, int tid,
70258f2cc57SLiad Kaufman int ac, int ssn, unsigned int wdg_timeout,
703cfbc6c4cSSara Sharon bool force, struct iwl_mvm_txq *txq)
70458f2cc57SLiad Kaufman {
70558f2cc57SLiad Kaufman struct iwl_scd_txq_cfg_cmd cmd = {
70658f2cc57SLiad Kaufman .scd_queue = queue,
707f7c692deSLiad Kaufman .action = SCD_CFG_DISABLE_QUEUE,
70858f2cc57SLiad Kaufman };
70958f2cc57SLiad Kaufman bool shared_queue;
71058f2cc57SLiad Kaufman int ret;
71158f2cc57SLiad Kaufman
712bb49701bSSara Sharon if (WARN_ON(iwl_mvm_has_new_tx_api(mvm)))
713bb49701bSSara Sharon return -EINVAL;
714bb49701bSSara Sharon
71558f2cc57SLiad Kaufman /*
71658f2cc57SLiad Kaufman * If the AC is lower than current one - FIFO needs to be redirected to
71758f2cc57SLiad Kaufman * the lowest one of the streams in the queue. Check if this is needed
71858f2cc57SLiad Kaufman * here.
71958f2cc57SLiad Kaufman * Notice that the enum ieee80211_ac_numbers is "flipped", so BK is with
72058f2cc57SLiad Kaufman * value 3 and VO with value 0, so to check if ac X is lower than ac Y
72158f2cc57SLiad Kaufman * we need to check if the numerical value of X is LARGER than of Y.
72258f2cc57SLiad Kaufman */
72358f2cc57SLiad Kaufman if (ac <= mvm->queue_info[queue].mac80211_ac && !force) {
72458f2cc57SLiad Kaufman IWL_DEBUG_TX_QUEUES(mvm,
72558f2cc57SLiad Kaufman "No redirection needed on TXQ #%d\n",
72658f2cc57SLiad Kaufman queue);
72758f2cc57SLiad Kaufman return 0;
72858f2cc57SLiad Kaufman }
72958f2cc57SLiad Kaufman
73058f2cc57SLiad Kaufman cmd.sta_id = mvm->queue_info[queue].ra_sta_id;
73158f2cc57SLiad Kaufman cmd.tx_fifo = iwl_mvm_ac_to_tx_fifo[mvm->queue_info[queue].mac80211_ac];
732edbe961cSLiad Kaufman cmd.tid = mvm->queue_info[queue].txq_tid;
7331c14089eSJohannes Berg shared_queue = hweight16(mvm->queue_info[queue].tid_bitmap) > 1;
73458f2cc57SLiad Kaufman
7359f9af3d7SLiad Kaufman IWL_DEBUG_TX_QUEUES(mvm, "Redirecting TXQ #%d to FIFO #%d\n",
73658f2cc57SLiad Kaufman queue, iwl_mvm_ac_to_tx_fifo[ac]);
73758f2cc57SLiad Kaufman
738cfbc6c4cSSara Sharon /* Stop the queue and wait for it to empty */
739b58e3d43SJohannes Berg set_bit(IWL_MVM_TXQ_STATE_STOP_REDIRECT, &txq->state);
740cfbc6c4cSSara Sharon
741a1a57877SSara Sharon ret = iwl_trans_wait_tx_queues_empty(mvm->trans, BIT(queue));
74258f2cc57SLiad Kaufman if (ret) {
74358f2cc57SLiad Kaufman IWL_ERR(mvm, "Error draining queue %d before reconfig\n",
74458f2cc57SLiad Kaufman queue);
74558f2cc57SLiad Kaufman ret = -EIO;
74658f2cc57SLiad Kaufman goto out;
74758f2cc57SLiad Kaufman }
74858f2cc57SLiad Kaufman
74958f2cc57SLiad Kaufman /* Before redirecting the queue we need to de-activate it */
75058f2cc57SLiad Kaufman iwl_trans_txq_disable(mvm->trans, queue, false);
75158f2cc57SLiad Kaufman ret = iwl_mvm_send_cmd_pdu(mvm, SCD_QUEUE_CFG, 0, sizeof(cmd), &cmd);
75258f2cc57SLiad Kaufman if (ret)
75358f2cc57SLiad Kaufman IWL_ERR(mvm, "Failed SCD disable TXQ %d (ret=%d)\n", queue,
75458f2cc57SLiad Kaufman ret);
75558f2cc57SLiad Kaufman
75658f2cc57SLiad Kaufman /* Make sure the SCD wrptr is correctly set before reconfiguring */
757ca3b9c6bSSara Sharon iwl_trans_txq_enable_cfg(mvm->trans, queue, ssn, NULL, wdg_timeout);
75858f2cc57SLiad Kaufman
759edbe961cSLiad Kaufman /* Update the TID "owner" of the queue */
760edbe961cSLiad Kaufman mvm->queue_info[queue].txq_tid = tid;
761edbe961cSLiad Kaufman
76258f2cc57SLiad Kaufman /* TODO: Work-around SCD bug when moving back by multiples of 0x40 */
76358f2cc57SLiad Kaufman
76458f2cc57SLiad Kaufman /* Redirect to lower AC */
76558f2cc57SLiad Kaufman iwl_mvm_reconfig_scd(mvm, queue, iwl_mvm_ac_to_tx_fifo[ac],
7660ec9257bSSara Sharon cmd.sta_id, tid, IWL_FRAME_LIMIT, ssn);
76758f2cc57SLiad Kaufman
76858f2cc57SLiad Kaufman /* Update AC marking of the queue */
76958f2cc57SLiad Kaufman mvm->queue_info[queue].mac80211_ac = ac;
77058f2cc57SLiad Kaufman
77158f2cc57SLiad Kaufman /*
77258f2cc57SLiad Kaufman * Mark queue as shared in transport if shared
77358f2cc57SLiad Kaufman * Note this has to be done after queue enablement because enablement
77458f2cc57SLiad Kaufman * can also set this value, and there is no indication there to shared
77558f2cc57SLiad Kaufman * queues
77658f2cc57SLiad Kaufman */
77758f2cc57SLiad Kaufman if (shared_queue)
77858f2cc57SLiad Kaufman iwl_trans_txq_set_shared_mode(mvm->trans, queue, true);
77958f2cc57SLiad Kaufman
78058f2cc57SLiad Kaufman out:
781cfbc6c4cSSara Sharon /* Continue using the queue */
782b58e3d43SJohannes Berg clear_bit(IWL_MVM_TXQ_STATE_STOP_REDIRECT, &txq->state);
78358f2cc57SLiad Kaufman
78458f2cc57SLiad Kaufman return ret;
78558f2cc57SLiad Kaufman }
78658f2cc57SLiad Kaufman
iwl_mvm_find_free_queue(struct iwl_mvm * mvm,u8 sta_id,u8 minq,u8 maxq)78799448a8cSJohannes Berg static int iwl_mvm_find_free_queue(struct iwl_mvm *mvm, u8 sta_id,
78899448a8cSJohannes Berg u8 minq, u8 maxq)
78999448a8cSJohannes Berg {
79099448a8cSJohannes Berg int i;
79199448a8cSJohannes Berg
792f3f240f9SJohannes Berg lockdep_assert_held(&mvm->mutex);
79399448a8cSJohannes Berg
794e5b72e3bSJohannes Berg if (WARN(maxq >= mvm->trans->trans_cfg->base_params->num_of_queues,
795e5b72e3bSJohannes Berg "max queue %d >= num_of_queues (%d)", maxq,
796e5b72e3bSJohannes Berg mvm->trans->trans_cfg->base_params->num_of_queues))
797e5b72e3bSJohannes Berg maxq = mvm->trans->trans_cfg->base_params->num_of_queues - 1;
798e5b72e3bSJohannes Berg
79999448a8cSJohannes Berg /* This should not be hit with new TX path */
80099448a8cSJohannes Berg if (WARN_ON(iwl_mvm_has_new_tx_api(mvm)))
80199448a8cSJohannes Berg return -ENOSPC;
80299448a8cSJohannes Berg
80399448a8cSJohannes Berg /* Start by looking for a free queue */
80499448a8cSJohannes Berg for (i = minq; i <= maxq; i++)
8051c14089eSJohannes Berg if (mvm->queue_info[i].tid_bitmap == 0 &&
80699448a8cSJohannes Berg mvm->queue_info[i].status == IWL_MVM_QUEUE_FREE)
80799448a8cSJohannes Berg return i;
80899448a8cSJohannes Berg
80999448a8cSJohannes Berg return -ENOSPC;
81099448a8cSJohannes Berg }
81199448a8cSJohannes Berg
iwl_mvm_get_queue_size(struct ieee80211_sta * sta)81209369983SJohannes Berg static int iwl_mvm_get_queue_size(struct ieee80211_sta *sta)
81309369983SJohannes Berg {
81457974a55SGregory Greenman int max_size = IWL_DEFAULT_QUEUE_SIZE;
81557974a55SGregory Greenman unsigned int link_id;
81657974a55SGregory Greenman
81709369983SJohannes Berg /* this queue isn't used for traffic (cab_queue) */
81809369983SJohannes Berg if (!sta)
81909369983SJohannes Berg return IWL_MGMT_QUEUE_SIZE;
82009369983SJohannes Berg
82157974a55SGregory Greenman rcu_read_lock();
82257974a55SGregory Greenman
82357974a55SGregory Greenman for (link_id = 0; link_id < ARRAY_SIZE(sta->link); link_id++) {
82457974a55SGregory Greenman struct ieee80211_link_sta *link =
82557974a55SGregory Greenman rcu_dereference(sta->link[link_id]);
82657974a55SGregory Greenman
82757974a55SGregory Greenman if (!link)
82857974a55SGregory Greenman continue;
82957974a55SGregory Greenman
83009369983SJohannes Berg /* support for 1k ba size */
83157974a55SGregory Greenman if (link->eht_cap.has_eht &&
83257974a55SGregory Greenman max_size < IWL_DEFAULT_QUEUE_SIZE_EHT)
83357974a55SGregory Greenman max_size = IWL_DEFAULT_QUEUE_SIZE_EHT;
83409369983SJohannes Berg
83509369983SJohannes Berg /* support for 256 ba size */
83657974a55SGregory Greenman if (link->he_cap.has_he &&
83757974a55SGregory Greenman max_size < IWL_DEFAULT_QUEUE_SIZE_HE)
83857974a55SGregory Greenman max_size = IWL_DEFAULT_QUEUE_SIZE_HE;
83957974a55SGregory Greenman }
84009369983SJohannes Berg
84157974a55SGregory Greenman rcu_read_unlock();
84257974a55SGregory Greenman return max_size;
84309369983SJohannes Berg }
84409369983SJohannes Berg
iwl_mvm_tvqm_enable_txq(struct iwl_mvm * mvm,struct ieee80211_sta * sta,u8 sta_id,u8 tid,unsigned int timeout)845006c152aSMiri Korenblit int iwl_mvm_tvqm_enable_txq(struct iwl_mvm *mvm,
84609369983SJohannes Berg struct ieee80211_sta *sta,
84799448a8cSJohannes Berg u8 sta_id, u8 tid, unsigned int timeout)
84899448a8cSJohannes Berg {
849d5399f11SMordechay Goodstein int queue, size;
85057974a55SGregory Greenman u32 sta_mask = 0;
85199448a8cSJohannes Berg
85299448a8cSJohannes Berg if (tid == IWL_MAX_TID_COUNT) {
85399448a8cSJohannes Berg tid = IWL_MGMT_TID;
854ff911dcaSShaul Triebitz size = max_t(u32, IWL_MGMT_QUEUE_SIZE,
855ff911dcaSShaul Triebitz mvm->trans->cfg->min_txq_size);
856d5399f11SMordechay Goodstein } else {
85709369983SJohannes Berg size = iwl_mvm_get_queue_size(sta);
858d5399f11SMordechay Goodstein }
859d5399f11SMordechay Goodstein
860d5399f11SMordechay Goodstein /* take the min with bc tbl entries allowed */
861d5399f11SMordechay Goodstein size = min_t(u32, size, mvm->trans->txqs.bc_tbl_size / sizeof(u16));
862d5399f11SMordechay Goodstein
863d5399f11SMordechay Goodstein /* size needs to be power of 2 values for calculating read/write pointers */
864d5399f11SMordechay Goodstein size = rounddown_pow_of_two(size);
865d5399f11SMordechay Goodstein
86657974a55SGregory Greenman if (sta) {
86757974a55SGregory Greenman struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(sta);
86857974a55SGregory Greenman unsigned int link_id;
86957974a55SGregory Greenman
87057974a55SGregory Greenman for (link_id = 0;
87157974a55SGregory Greenman link_id < ARRAY_SIZE(mvmsta->link);
87257974a55SGregory Greenman link_id++) {
87357974a55SGregory Greenman struct iwl_mvm_link_sta *link =
87457974a55SGregory Greenman rcu_dereference_protected(mvmsta->link[link_id],
87557974a55SGregory Greenman lockdep_is_held(&mvm->mutex));
87657974a55SGregory Greenman
87757974a55SGregory Greenman if (!link)
87857974a55SGregory Greenman continue;
87957974a55SGregory Greenman
88057974a55SGregory Greenman sta_mask |= BIT(link->sta_id);
88157974a55SGregory Greenman }
88257974a55SGregory Greenman } else {
88357974a55SGregory Greenman sta_mask |= BIT(sta_id);
88457974a55SGregory Greenman }
88557974a55SGregory Greenman
88657974a55SGregory Greenman if (!sta_mask)
88757974a55SGregory Greenman return -EINVAL;
88857974a55SGregory Greenman
88992f78d4bSJohannes Berg do {
89057974a55SGregory Greenman queue = iwl_trans_txq_alloc(mvm->trans, 0, sta_mask,
89185b17a33SJohannes Berg tid, size, timeout);
89292f78d4bSJohannes Berg
89392f78d4bSJohannes Berg if (queue < 0)
89499448a8cSJohannes Berg IWL_DEBUG_TX_QUEUES(mvm,
89557974a55SGregory Greenman "Failed allocating TXQ of size %d for sta mask %x tid %d, ret: %d\n",
89657974a55SGregory Greenman size, sta_mask, tid, queue);
89792f78d4bSJohannes Berg size /= 2;
89892f78d4bSJohannes Berg } while (queue < 0 && size >= 16);
89992f78d4bSJohannes Berg
90092f78d4bSJohannes Berg if (queue < 0)
90199448a8cSJohannes Berg return queue;
90299448a8cSJohannes Berg
90357974a55SGregory Greenman IWL_DEBUG_TX_QUEUES(mvm, "Enabling TXQ #%d for sta mask 0x%x tid %d\n",
90457974a55SGregory Greenman queue, sta_mask, tid);
90599448a8cSJohannes Berg
90699448a8cSJohannes Berg return queue;
90799448a8cSJohannes Berg }
90899448a8cSJohannes Berg
iwl_mvm_sta_alloc_queue_tvqm(struct iwl_mvm * mvm,struct ieee80211_sta * sta,u8 ac,int tid)909310181ecSSara Sharon static int iwl_mvm_sta_alloc_queue_tvqm(struct iwl_mvm *mvm,
910310181ecSSara Sharon struct ieee80211_sta *sta, u8 ac,
911310181ecSSara Sharon int tid)
912310181ecSSara Sharon {
913310181ecSSara Sharon struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(sta);
914cfbc6c4cSSara Sharon struct iwl_mvm_txq *mvmtxq =
915cfbc6c4cSSara Sharon iwl_mvm_txq_from_tid(sta, tid);
916310181ecSSara Sharon unsigned int wdg_timeout =
917310181ecSSara Sharon iwl_mvm_get_wd_timeout(mvm, mvmsta->vif, false, false);
918310181ecSSara Sharon int queue = -1;
919310181ecSSara Sharon
920310181ecSSara Sharon lockdep_assert_held(&mvm->mutex);
921310181ecSSara Sharon
922310181ecSSara Sharon IWL_DEBUG_TX_QUEUES(mvm,
923310181ecSSara Sharon "Allocating queue for sta %d on tid %d\n",
924c8ee33e1SGregory Greenman mvmsta->deflink.sta_id, tid);
925c8ee33e1SGregory Greenman queue = iwl_mvm_tvqm_enable_txq(mvm, sta, mvmsta->deflink.sta_id,
92609369983SJohannes Berg tid, wdg_timeout);
927310181ecSSara Sharon if (queue < 0)
928310181ecSSara Sharon return queue;
929310181ecSSara Sharon
930cfbc6c4cSSara Sharon mvmtxq->txq_id = queue;
931cfbc6c4cSSara Sharon mvm->tvqm_info[queue].txq_tid = tid;
932c8ee33e1SGregory Greenman mvm->tvqm_info[queue].sta_id = mvmsta->deflink.sta_id;
933cfbc6c4cSSara Sharon
934310181ecSSara Sharon IWL_DEBUG_TX_QUEUES(mvm, "Allocated queue is %d\n", queue);
935310181ecSSara Sharon
936310181ecSSara Sharon spin_lock_bh(&mvmsta->lock);
937310181ecSSara Sharon mvmsta->tid_data[tid].txq_id = queue;
938310181ecSSara Sharon spin_unlock_bh(&mvmsta->lock);
939310181ecSSara Sharon
940310181ecSSara Sharon return 0;
941310181ecSSara Sharon }
942310181ecSSara Sharon
iwl_mvm_update_txq_mapping(struct iwl_mvm * mvm,struct ieee80211_sta * sta,int queue,u8 sta_id,u8 tid)943cfbc6c4cSSara Sharon static bool iwl_mvm_update_txq_mapping(struct iwl_mvm *mvm,
944cfbc6c4cSSara Sharon struct ieee80211_sta *sta,
945cfbc6c4cSSara Sharon int queue, u8 sta_id, u8 tid)
94699448a8cSJohannes Berg {
94799448a8cSJohannes Berg bool enable_queue = true;
94899448a8cSJohannes Berg
94999448a8cSJohannes Berg /* Make sure this TID isn't already enabled */
95099448a8cSJohannes Berg if (mvm->queue_info[queue].tid_bitmap & BIT(tid)) {
95199448a8cSJohannes Berg IWL_ERR(mvm, "Trying to enable TXQ %d with existing TID %d\n",
95299448a8cSJohannes Berg queue, tid);
95399448a8cSJohannes Berg return false;
95499448a8cSJohannes Berg }
95599448a8cSJohannes Berg
95699448a8cSJohannes Berg /* Update mappings and refcounts */
9571c14089eSJohannes Berg if (mvm->queue_info[queue].tid_bitmap)
95899448a8cSJohannes Berg enable_queue = false;
95999448a8cSJohannes Berg
96099448a8cSJohannes Berg mvm->queue_info[queue].tid_bitmap |= BIT(tid);
96199448a8cSJohannes Berg mvm->queue_info[queue].ra_sta_id = sta_id;
96299448a8cSJohannes Berg
96399448a8cSJohannes Berg if (enable_queue) {
96499448a8cSJohannes Berg if (tid != IWL_MAX_TID_COUNT)
96599448a8cSJohannes Berg mvm->queue_info[queue].mac80211_ac =
96699448a8cSJohannes Berg tid_to_mac80211_ac[tid];
96799448a8cSJohannes Berg else
96899448a8cSJohannes Berg mvm->queue_info[queue].mac80211_ac = IEEE80211_AC_VO;
96999448a8cSJohannes Berg
97099448a8cSJohannes Berg mvm->queue_info[queue].txq_tid = tid;
97199448a8cSJohannes Berg }
97299448a8cSJohannes Berg
973cfbc6c4cSSara Sharon if (sta) {
974cfbc6c4cSSara Sharon struct iwl_mvm_txq *mvmtxq =
975cfbc6c4cSSara Sharon iwl_mvm_txq_from_tid(sta, tid);
976cfbc6c4cSSara Sharon
977cfbc6c4cSSara Sharon mvmtxq->txq_id = queue;
978cfbc6c4cSSara Sharon }
979cfbc6c4cSSara Sharon
98099448a8cSJohannes Berg IWL_DEBUG_TX_QUEUES(mvm,
981cfbc6c4cSSara Sharon "Enabling TXQ #%d tids=0x%x\n",
982cfbc6c4cSSara Sharon queue, mvm->queue_info[queue].tid_bitmap);
98399448a8cSJohannes Berg
98499448a8cSJohannes Berg return enable_queue;
98599448a8cSJohannes Berg }
98699448a8cSJohannes Berg
iwl_mvm_enable_txq(struct iwl_mvm * mvm,struct ieee80211_sta * sta,int queue,u16 ssn,const struct iwl_trans_txq_scd_cfg * cfg,unsigned int wdg_timeout)987cfbc6c4cSSara Sharon static bool iwl_mvm_enable_txq(struct iwl_mvm *mvm, struct ieee80211_sta *sta,
988cfbc6c4cSSara Sharon int queue, u16 ssn,
98999448a8cSJohannes Berg const struct iwl_trans_txq_scd_cfg *cfg,
99099448a8cSJohannes Berg unsigned int wdg_timeout)
99199448a8cSJohannes Berg {
99299448a8cSJohannes Berg struct iwl_scd_txq_cfg_cmd cmd = {
99399448a8cSJohannes Berg .scd_queue = queue,
99499448a8cSJohannes Berg .action = SCD_CFG_ENABLE_QUEUE,
99599448a8cSJohannes Berg .window = cfg->frame_limit,
99699448a8cSJohannes Berg .sta_id = cfg->sta_id,
99799448a8cSJohannes Berg .ssn = cpu_to_le16(ssn),
99899448a8cSJohannes Berg .tx_fifo = cfg->fifo,
99999448a8cSJohannes Berg .aggregate = cfg->aggregate,
100099448a8cSJohannes Berg .tid = cfg->tid,
100199448a8cSJohannes Berg };
100299448a8cSJohannes Berg bool inc_ssn;
100399448a8cSJohannes Berg
100499448a8cSJohannes Berg if (WARN_ON(iwl_mvm_has_new_tx_api(mvm)))
100599448a8cSJohannes Berg return false;
100699448a8cSJohannes Berg
100799448a8cSJohannes Berg /* Send the enabling command if we need to */
1008cfbc6c4cSSara Sharon if (!iwl_mvm_update_txq_mapping(mvm, sta, queue, cfg->sta_id, cfg->tid))
100999448a8cSJohannes Berg return false;
101099448a8cSJohannes Berg
101199448a8cSJohannes Berg inc_ssn = iwl_trans_txq_enable_cfg(mvm->trans, queue, ssn,
101299448a8cSJohannes Berg NULL, wdg_timeout);
101399448a8cSJohannes Berg if (inc_ssn)
101499448a8cSJohannes Berg le16_add_cpu(&cmd.ssn, 1);
101599448a8cSJohannes Berg
101699448a8cSJohannes Berg WARN(iwl_mvm_send_cmd_pdu(mvm, SCD_QUEUE_CFG, 0, sizeof(cmd), &cmd),
101799448a8cSJohannes Berg "Failed to configure queue %d on FIFO %d\n", queue, cfg->fifo);
101899448a8cSJohannes Berg
101999448a8cSJohannes Berg return inc_ssn;
102099448a8cSJohannes Berg }
102199448a8cSJohannes Berg
iwl_mvm_change_queue_tid(struct iwl_mvm * mvm,int queue)1022b3a87f11SJohannes Berg static void iwl_mvm_change_queue_tid(struct iwl_mvm *mvm, int queue)
102319aefa45SLiad Kaufman {
102419aefa45SLiad Kaufman struct iwl_scd_txq_cfg_cmd cmd = {
102519aefa45SLiad Kaufman .scd_queue = queue,
102619aefa45SLiad Kaufman .action = SCD_CFG_UPDATE_QUEUE_TID,
102719aefa45SLiad Kaufman };
102819aefa45SLiad Kaufman int tid;
102919aefa45SLiad Kaufman unsigned long tid_bitmap;
103019aefa45SLiad Kaufman int ret;
103119aefa45SLiad Kaufman
103219aefa45SLiad Kaufman lockdep_assert_held(&mvm->mutex);
103319aefa45SLiad Kaufman
1034bb49701bSSara Sharon if (WARN_ON(iwl_mvm_has_new_tx_api(mvm)))
1035bb49701bSSara Sharon return;
1036bb49701bSSara Sharon
103719aefa45SLiad Kaufman tid_bitmap = mvm->queue_info[queue].tid_bitmap;
103819aefa45SLiad Kaufman
103919aefa45SLiad Kaufman if (WARN(!tid_bitmap, "TXQ %d has no tids assigned to it\n", queue))
104019aefa45SLiad Kaufman return;
104119aefa45SLiad Kaufman
104219aefa45SLiad Kaufman /* Find any TID for queue */
104319aefa45SLiad Kaufman tid = find_first_bit(&tid_bitmap, IWL_MAX_TID_COUNT + 1);
104419aefa45SLiad Kaufman cmd.tid = tid;
104519aefa45SLiad Kaufman cmd.tx_fifo = iwl_mvm_ac_to_tx_fifo[tid_to_mac80211_ac[tid]];
104619aefa45SLiad Kaufman
104719aefa45SLiad Kaufman ret = iwl_mvm_send_cmd_pdu(mvm, SCD_QUEUE_CFG, 0, sizeof(cmd), &cmd);
1048341ca402SLiad Kaufman if (ret) {
104919aefa45SLiad Kaufman IWL_ERR(mvm, "Failed to update owner of TXQ %d (ret=%d)\n",
105019aefa45SLiad Kaufman queue, ret);
1051341ca402SLiad Kaufman return;
1052341ca402SLiad Kaufman }
1053341ca402SLiad Kaufman
1054341ca402SLiad Kaufman mvm->queue_info[queue].txq_tid = tid;
105519aefa45SLiad Kaufman IWL_DEBUG_TX_QUEUES(mvm, "Changed TXQ %d ownership to tid %d\n",
105619aefa45SLiad Kaufman queue, tid);
105719aefa45SLiad Kaufman }
105819aefa45SLiad Kaufman
iwl_mvm_unshare_queue(struct iwl_mvm * mvm,int queue)10599f9af3d7SLiad Kaufman static void iwl_mvm_unshare_queue(struct iwl_mvm *mvm, int queue)
10609f9af3d7SLiad Kaufman {
10619f9af3d7SLiad Kaufman struct ieee80211_sta *sta;
10629f9af3d7SLiad Kaufman struct iwl_mvm_sta *mvmsta;
1063806911daSSharon Dvir u8 sta_id;
10649f9af3d7SLiad Kaufman int tid = -1;
10659f9af3d7SLiad Kaufman unsigned long tid_bitmap;
10669f9af3d7SLiad Kaufman unsigned int wdg_timeout;
10679f9af3d7SLiad Kaufman int ssn;
10689f9af3d7SLiad Kaufman int ret = true;
10699f9af3d7SLiad Kaufman
1070bb49701bSSara Sharon /* queue sharing is disabled on new TX path */
1071bb49701bSSara Sharon if (WARN_ON(iwl_mvm_has_new_tx_api(mvm)))
1072bb49701bSSara Sharon return;
1073bb49701bSSara Sharon
10749f9af3d7SLiad Kaufman lockdep_assert_held(&mvm->mutex);
10759f9af3d7SLiad Kaufman
10769f9af3d7SLiad Kaufman sta_id = mvm->queue_info[queue].ra_sta_id;
10779f9af3d7SLiad Kaufman tid_bitmap = mvm->queue_info[queue].tid_bitmap;
10789f9af3d7SLiad Kaufman
10799f9af3d7SLiad Kaufman /* Find TID for queue, and make sure it is the only one on the queue */
10809f9af3d7SLiad Kaufman tid = find_first_bit(&tid_bitmap, IWL_MAX_TID_COUNT + 1);
10819f9af3d7SLiad Kaufman if (tid_bitmap != BIT(tid)) {
10829f9af3d7SLiad Kaufman IWL_ERR(mvm, "Failed to unshare q %d, active tids=0x%lx\n",
10839f9af3d7SLiad Kaufman queue, tid_bitmap);
10849f9af3d7SLiad Kaufman return;
10859f9af3d7SLiad Kaufman }
10869f9af3d7SLiad Kaufman
10879f9af3d7SLiad Kaufman IWL_DEBUG_TX_QUEUES(mvm, "Unsharing TXQ %d, keeping tid %d\n", queue,
10889f9af3d7SLiad Kaufman tid);
10899f9af3d7SLiad Kaufman
10909f9af3d7SLiad Kaufman sta = rcu_dereference_protected(mvm->fw_id_to_mac_id[sta_id],
10919f9af3d7SLiad Kaufman lockdep_is_held(&mvm->mutex));
10929f9af3d7SLiad Kaufman
10939f9af3d7SLiad Kaufman if (WARN_ON_ONCE(IS_ERR_OR_NULL(sta)))
10949f9af3d7SLiad Kaufman return;
10959f9af3d7SLiad Kaufman
10969f9af3d7SLiad Kaufman mvmsta = iwl_mvm_sta_from_mac80211(sta);
10979f9af3d7SLiad Kaufman wdg_timeout = iwl_mvm_get_wd_timeout(mvm, mvmsta->vif, false, false);
10989f9af3d7SLiad Kaufman
10999f9af3d7SLiad Kaufman ssn = IEEE80211_SEQ_TO_SN(mvmsta->tid_data[tid].seq_number);
11009f9af3d7SLiad Kaufman
1101cfbc6c4cSSara Sharon ret = iwl_mvm_redirect_queue(mvm, queue, tid,
11029f9af3d7SLiad Kaufman tid_to_mac80211_ac[tid], ssn,
1103cfbc6c4cSSara Sharon wdg_timeout, true,
1104cfbc6c4cSSara Sharon iwl_mvm_txq_from_tid(sta, tid));
11059f9af3d7SLiad Kaufman if (ret) {
11069f9af3d7SLiad Kaufman IWL_ERR(mvm, "Failed to redirect TXQ %d\n", queue);
11079f9af3d7SLiad Kaufman return;
11089f9af3d7SLiad Kaufman }
11099f9af3d7SLiad Kaufman
11109f9af3d7SLiad Kaufman /* If aggs should be turned back on - do it */
11119f9af3d7SLiad Kaufman if (mvmsta->tid_data[tid].state == IWL_AGG_ON) {
11129cd70e80SEmmanuel Grumbach struct iwl_mvm_add_sta_cmd cmd = {0};
11139f9af3d7SLiad Kaufman
11149f9af3d7SLiad Kaufman mvmsta->tid_disable_agg &= ~BIT(tid);
11159f9af3d7SLiad Kaufman
11169f9af3d7SLiad Kaufman cmd.mac_id_n_color = cpu_to_le32(mvmsta->mac_id_n_color);
1117c8ee33e1SGregory Greenman cmd.sta_id = mvmsta->deflink.sta_id;
11189f9af3d7SLiad Kaufman cmd.add_modify = STA_MODE_MODIFY;
11199f9af3d7SLiad Kaufman cmd.modify_mask = STA_MODIFY_TID_DISABLE_TX;
11209f9af3d7SLiad Kaufman cmd.tfd_queue_msk = cpu_to_le32(mvmsta->tfd_queue_msk);
11219f9af3d7SLiad Kaufman cmd.tid_disable_tx = cpu_to_le16(mvmsta->tid_disable_agg);
11229f9af3d7SLiad Kaufman
11239f9af3d7SLiad Kaufman ret = iwl_mvm_send_cmd_pdu(mvm, ADD_STA, CMD_ASYNC,
11249f9af3d7SLiad Kaufman iwl_mvm_add_sta_cmd_size(mvm), &cmd);
11259f9af3d7SLiad Kaufman if (!ret) {
11269f9af3d7SLiad Kaufman IWL_DEBUG_TX_QUEUES(mvm,
11279f9af3d7SLiad Kaufman "TXQ #%d is now aggregated again\n",
11289f9af3d7SLiad Kaufman queue);
11299f9af3d7SLiad Kaufman
11309f9af3d7SLiad Kaufman /* Mark queue intenally as aggregating again */
11319f9af3d7SLiad Kaufman iwl_trans_txq_set_shared_mode(mvm->trans, queue, false);
11329f9af3d7SLiad Kaufman }
11339f9af3d7SLiad Kaufman }
11349f9af3d7SLiad Kaufman
11359f9af3d7SLiad Kaufman mvm->queue_info[queue].status = IWL_MVM_QUEUE_READY;
11369f9af3d7SLiad Kaufman }
11379f9af3d7SLiad Kaufman
113899448a8cSJohannes Berg /*
113999448a8cSJohannes Berg * Remove inactive TIDs of a given queue.
114099448a8cSJohannes Berg * If all queue TIDs are inactive - mark the queue as inactive
114199448a8cSJohannes Berg * If only some the queue TIDs are inactive - unmap them from the queue
1142724fe771SJohannes Berg *
1143724fe771SJohannes Berg * Returns %true if all TIDs were removed and the queue could be reused.
114499448a8cSJohannes Berg */
iwl_mvm_remove_inactive_tids(struct iwl_mvm * mvm,struct iwl_mvm_sta * mvmsta,int queue,unsigned long tid_bitmap,unsigned long * unshare_queues,unsigned long * changetid_queues)1145724fe771SJohannes Berg static bool iwl_mvm_remove_inactive_tids(struct iwl_mvm *mvm,
114699448a8cSJohannes Berg struct iwl_mvm_sta *mvmsta, int queue,
114790d2d94cSJohannes Berg unsigned long tid_bitmap,
1148b3a87f11SJohannes Berg unsigned long *unshare_queues,
1149b3a87f11SJohannes Berg unsigned long *changetid_queues)
115099448a8cSJohannes Berg {
1151af3cdfd3SJakub Kicinski unsigned int tid;
115299448a8cSJohannes Berg
115399448a8cSJohannes Berg lockdep_assert_held(&mvmsta->lock);
1154f3f240f9SJohannes Berg lockdep_assert_held(&mvm->mutex);
115599448a8cSJohannes Berg
115699448a8cSJohannes Berg if (WARN_ON(iwl_mvm_has_new_tx_api(mvm)))
1157724fe771SJohannes Berg return false;
115899448a8cSJohannes Berg
115999448a8cSJohannes Berg /* Go over all non-active TIDs, incl. IWL_MAX_TID_COUNT (for mgmt) */
116099448a8cSJohannes Berg for_each_set_bit(tid, &tid_bitmap, IWL_MAX_TID_COUNT + 1) {
116199448a8cSJohannes Berg /* If some TFDs are still queued - don't mark TID as inactive */
116299448a8cSJohannes Berg if (iwl_mvm_tid_queued(mvm, &mvmsta->tid_data[tid]))
116399448a8cSJohannes Berg tid_bitmap &= ~BIT(tid);
116499448a8cSJohannes Berg
116599448a8cSJohannes Berg /* Don't mark as inactive any TID that has an active BA */
116699448a8cSJohannes Berg if (mvmsta->tid_data[tid].state != IWL_AGG_OFF)
116799448a8cSJohannes Berg tid_bitmap &= ~BIT(tid);
116899448a8cSJohannes Berg }
116999448a8cSJohannes Berg
1170724fe771SJohannes Berg /* If all TIDs in the queue are inactive - return it can be reused */
117199448a8cSJohannes Berg if (tid_bitmap == mvm->queue_info[queue].tid_bitmap) {
1172724fe771SJohannes Berg IWL_DEBUG_TX_QUEUES(mvm, "Queue %d is inactive\n", queue);
1173724fe771SJohannes Berg return true;
117499448a8cSJohannes Berg }
117599448a8cSJohannes Berg
117699448a8cSJohannes Berg /*
117799448a8cSJohannes Berg * If we are here, this is a shared queue and not all TIDs timed-out.
117899448a8cSJohannes Berg * Remove the ones that did.
117999448a8cSJohannes Berg */
118099448a8cSJohannes Berg for_each_set_bit(tid, &tid_bitmap, IWL_MAX_TID_COUNT + 1) {
1181d4530f63SJohannes Berg u16 q_tid_bitmap;
118299448a8cSJohannes Berg
118399448a8cSJohannes Berg mvmsta->tid_data[tid].txq_id = IWL_MVM_INVALID_QUEUE;
118499448a8cSJohannes Berg mvm->queue_info[queue].tid_bitmap &= ~BIT(tid);
118599448a8cSJohannes Berg
1186d4530f63SJohannes Berg q_tid_bitmap = mvm->queue_info[queue].tid_bitmap;
1187b3a87f11SJohannes Berg
1188b3a87f11SJohannes Berg /*
1189b3a87f11SJohannes Berg * We need to take into account a situation in which a TXQ was
1190b3a87f11SJohannes Berg * allocated to TID x, and then turned shared by adding TIDs y
1191b3a87f11SJohannes Berg * and z. If TID x becomes inactive and is removed from the TXQ,
1192b3a87f11SJohannes Berg * ownership must be given to one of the remaining TIDs.
1193b3a87f11SJohannes Berg * This is mainly because if TID x continues - a new queue can't
1194b3a87f11SJohannes Berg * be allocated for it as long as it is an owner of another TXQ.
1195b3a87f11SJohannes Berg *
1196b3a87f11SJohannes Berg * Mark this queue in the right bitmap, we'll send the command
1197b3a87f11SJohannes Berg * to the firmware later.
1198b3a87f11SJohannes Berg */
1199d4530f63SJohannes Berg if (!(q_tid_bitmap & BIT(mvm->queue_info[queue].txq_tid)))
1200b3a87f11SJohannes Berg set_bit(queue, changetid_queues);
1201b3a87f11SJohannes Berg
120299448a8cSJohannes Berg IWL_DEBUG_TX_QUEUES(mvm,
120399448a8cSJohannes Berg "Removing inactive TID %d from shared Q:%d\n",
120499448a8cSJohannes Berg tid, queue);
120599448a8cSJohannes Berg }
120699448a8cSJohannes Berg
120799448a8cSJohannes Berg IWL_DEBUG_TX_QUEUES(mvm,
120899448a8cSJohannes Berg "TXQ #%d left with tid bitmap 0x%x\n", queue,
120999448a8cSJohannes Berg mvm->queue_info[queue].tid_bitmap);
121099448a8cSJohannes Berg
121199448a8cSJohannes Berg /*
121299448a8cSJohannes Berg * There may be different TIDs with the same mac queues, so make
121399448a8cSJohannes Berg * sure all TIDs have existing corresponding mac queues enabled
121499448a8cSJohannes Berg */
121599448a8cSJohannes Berg tid_bitmap = mvm->queue_info[queue].tid_bitmap;
121699448a8cSJohannes Berg
121799448a8cSJohannes Berg /* If the queue is marked as shared - "unshare" it */
12181c14089eSJohannes Berg if (hweight16(mvm->queue_info[queue].tid_bitmap) == 1 &&
121999448a8cSJohannes Berg mvm->queue_info[queue].status == IWL_MVM_QUEUE_SHARED) {
122099448a8cSJohannes Berg IWL_DEBUG_TX_QUEUES(mvm, "Marking Q:%d for reconfig\n",
122199448a8cSJohannes Berg queue);
122290d2d94cSJohannes Berg set_bit(queue, unshare_queues);
122399448a8cSJohannes Berg }
1224724fe771SJohannes Berg
1225724fe771SJohannes Berg return false;
122699448a8cSJohannes Berg }
122799448a8cSJohannes Berg
1228724fe771SJohannes Berg /*
1229724fe771SJohannes Berg * Check for inactivity - this includes checking if any queue
1230724fe771SJohannes Berg * can be unshared and finding one (and only one) that can be
1231724fe771SJohannes Berg * reused.
1232724fe771SJohannes Berg * This function is also invoked as a sort of clean-up task,
1233724fe771SJohannes Berg * in which case @alloc_for_sta is IWL_MVM_INVALID_STA.
1234724fe771SJohannes Berg *
1235724fe771SJohannes Berg * Returns the queue number, or -ENOSPC.
1236724fe771SJohannes Berg */
iwl_mvm_inactivity_check(struct iwl_mvm * mvm,u8 alloc_for_sta)1237724fe771SJohannes Berg static int iwl_mvm_inactivity_check(struct iwl_mvm *mvm, u8 alloc_for_sta)
123899448a8cSJohannes Berg {
123999448a8cSJohannes Berg unsigned long now = jiffies;
124090d2d94cSJohannes Berg unsigned long unshare_queues = 0;
1241b3a87f11SJohannes Berg unsigned long changetid_queues = 0;
1242724fe771SJohannes Berg int i, ret, free_queue = -ENOSPC;
1243cfbc6c4cSSara Sharon struct ieee80211_sta *queue_owner = NULL;
124499448a8cSJohannes Berg
1245df2a2245SJohannes Berg lockdep_assert_held(&mvm->mutex);
1246df2a2245SJohannes Berg
124799448a8cSJohannes Berg if (iwl_mvm_has_new_tx_api(mvm))
1248724fe771SJohannes Berg return -ENOSPC;
124999448a8cSJohannes Berg
125099448a8cSJohannes Berg rcu_read_lock();
125199448a8cSJohannes Berg
1252459ab045SJohannes Berg /* we skip the CMD queue below by starting at 1 */
1253459ab045SJohannes Berg BUILD_BUG_ON(IWL_MVM_DQA_CMD_QUEUE != 0);
1254459ab045SJohannes Berg
1255459ab045SJohannes Berg for (i = 1; i < IWL_MAX_HW_QUEUES; i++) {
125699448a8cSJohannes Berg struct ieee80211_sta *sta;
125799448a8cSJohannes Berg struct iwl_mvm_sta *mvmsta;
125899448a8cSJohannes Berg u8 sta_id;
125999448a8cSJohannes Berg int tid;
126099448a8cSJohannes Berg unsigned long inactive_tid_bitmap = 0;
126199448a8cSJohannes Berg unsigned long queue_tid_bitmap;
126299448a8cSJohannes Berg
126399448a8cSJohannes Berg queue_tid_bitmap = mvm->queue_info[i].tid_bitmap;
1264459ab045SJohannes Berg if (!queue_tid_bitmap)
1265459ab045SJohannes Berg continue;
126699448a8cSJohannes Berg
126799448a8cSJohannes Berg /* If TXQ isn't in active use anyway - nothing to do here... */
126899448a8cSJohannes Berg if (mvm->queue_info[i].status != IWL_MVM_QUEUE_READY &&
1269459ab045SJohannes Berg mvm->queue_info[i].status != IWL_MVM_QUEUE_SHARED)
127099448a8cSJohannes Berg continue;
127199448a8cSJohannes Berg
127299448a8cSJohannes Berg /* Check to see if there are inactive TIDs on this queue */
127399448a8cSJohannes Berg for_each_set_bit(tid, &queue_tid_bitmap,
127499448a8cSJohannes Berg IWL_MAX_TID_COUNT + 1) {
127599448a8cSJohannes Berg if (time_after(mvm->queue_info[i].last_frame_time[tid] +
127699448a8cSJohannes Berg IWL_MVM_DQA_QUEUE_TIMEOUT, now))
127799448a8cSJohannes Berg continue;
127899448a8cSJohannes Berg
127999448a8cSJohannes Berg inactive_tid_bitmap |= BIT(tid);
128099448a8cSJohannes Berg }
128199448a8cSJohannes Berg
128299448a8cSJohannes Berg /* If all TIDs are active - finish check on this queue */
128399448a8cSJohannes Berg if (!inactive_tid_bitmap)
128499448a8cSJohannes Berg continue;
128599448a8cSJohannes Berg
128699448a8cSJohannes Berg /*
128799448a8cSJohannes Berg * If we are here - the queue hadn't been served recently and is
128899448a8cSJohannes Berg * in use
128999448a8cSJohannes Berg */
129099448a8cSJohannes Berg
129199448a8cSJohannes Berg sta_id = mvm->queue_info[i].ra_sta_id;
129299448a8cSJohannes Berg sta = rcu_dereference(mvm->fw_id_to_mac_id[sta_id]);
129399448a8cSJohannes Berg
129499448a8cSJohannes Berg /*
129599448a8cSJohannes Berg * If the STA doesn't exist anymore, it isn't an error. It could
129699448a8cSJohannes Berg * be that it was removed since getting the queues, and in this
129799448a8cSJohannes Berg * case it should've inactivated its queues anyway.
129899448a8cSJohannes Berg */
129999448a8cSJohannes Berg if (IS_ERR_OR_NULL(sta))
130099448a8cSJohannes Berg continue;
130199448a8cSJohannes Berg
130299448a8cSJohannes Berg mvmsta = iwl_mvm_sta_from_mac80211(sta);
130399448a8cSJohannes Berg
1304f3f240f9SJohannes Berg spin_lock_bh(&mvmsta->lock);
1305724fe771SJohannes Berg ret = iwl_mvm_remove_inactive_tids(mvm, mvmsta, i,
130690d2d94cSJohannes Berg inactive_tid_bitmap,
1307b3a87f11SJohannes Berg &unshare_queues,
1308b3a87f11SJohannes Berg &changetid_queues);
1309e6d419f9SJohannes Berg if (ret && free_queue < 0) {
1310cfbc6c4cSSara Sharon queue_owner = sta;
1311e6d419f9SJohannes Berg free_queue = i;
1312cfbc6c4cSSara Sharon }
1313459ab045SJohannes Berg /* only unlock sta lock - we still need the queue info lock */
1314f3f240f9SJohannes Berg spin_unlock_bh(&mvmsta->lock);
131599448a8cSJohannes Berg }
131699448a8cSJohannes Berg
1317df2a2245SJohannes Berg
1318df2a2245SJohannes Berg /* Reconfigure queues requiring reconfiguation */
131990d2d94cSJohannes Berg for_each_set_bit(i, &unshare_queues, IWL_MAX_HW_QUEUES)
132090d2d94cSJohannes Berg iwl_mvm_unshare_queue(mvm, i);
1321b3a87f11SJohannes Berg for_each_set_bit(i, &changetid_queues, IWL_MAX_HW_QUEUES)
1322b3a87f11SJohannes Berg iwl_mvm_change_queue_tid(mvm, i);
1323724fe771SJohannes Berg
1324fbb1461aSJohannes Berg rcu_read_unlock();
1325fbb1461aSJohannes Berg
1326724fe771SJohannes Berg if (free_queue >= 0 && alloc_for_sta != IWL_MVM_INVALID_STA) {
1327cfbc6c4cSSara Sharon ret = iwl_mvm_free_inactive_queue(mvm, free_queue, queue_owner,
1328724fe771SJohannes Berg alloc_for_sta);
1329fbb1461aSJohannes Berg if (ret)
1330724fe771SJohannes Berg return ret;
1331724fe771SJohannes Berg }
1332724fe771SJohannes Berg
1333724fe771SJohannes Berg return free_queue;
133499448a8cSJohannes Berg }
133599448a8cSJohannes Berg
iwl_mvm_sta_alloc_queue(struct iwl_mvm * mvm,struct ieee80211_sta * sta,u8 ac,int tid)1336c20e08b0SJohannes Berg static int iwl_mvm_sta_alloc_queue(struct iwl_mvm *mvm,
1337cfbc6c4cSSara Sharon struct ieee80211_sta *sta, u8 ac, int tid)
1338c20e08b0SJohannes Berg {
1339c20e08b0SJohannes Berg struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(sta);
1340c20e08b0SJohannes Berg struct iwl_trans_txq_scd_cfg cfg = {
1341c20e08b0SJohannes Berg .fifo = iwl_mvm_mac_ac_to_tx_fifo(mvm, ac),
1342c8ee33e1SGregory Greenman .sta_id = mvmsta->deflink.sta_id,
1343c20e08b0SJohannes Berg .tid = tid,
1344c20e08b0SJohannes Berg .frame_limit = IWL_FRAME_LIMIT,
1345c20e08b0SJohannes Berg };
1346c20e08b0SJohannes Berg unsigned int wdg_timeout =
1347c20e08b0SJohannes Berg iwl_mvm_get_wd_timeout(mvm, mvmsta->vif, false, false);
1348c20e08b0SJohannes Berg int queue = -1;
1349c6ce1c74SJohannes Berg u16 queue_tmp;
1350c20e08b0SJohannes Berg unsigned long disable_agg_tids = 0;
1351c20e08b0SJohannes Berg enum iwl_mvm_agg_state queue_state;
1352c20e08b0SJohannes Berg bool shared_queue = false, inc_ssn;
1353c20e08b0SJohannes Berg int ssn;
1354c20e08b0SJohannes Berg unsigned long tfd_queue_mask;
1355c20e08b0SJohannes Berg int ret;
1356c20e08b0SJohannes Berg
1357c20e08b0SJohannes Berg lockdep_assert_held(&mvm->mutex);
1358c20e08b0SJohannes Berg
1359c20e08b0SJohannes Berg if (iwl_mvm_has_new_tx_api(mvm))
1360c20e08b0SJohannes Berg return iwl_mvm_sta_alloc_queue_tvqm(mvm, sta, ac, tid);
1361c20e08b0SJohannes Berg
1362c20e08b0SJohannes Berg spin_lock_bh(&mvmsta->lock);
1363c20e08b0SJohannes Berg tfd_queue_mask = mvmsta->tfd_queue_msk;
136435739348SSara Sharon ssn = IEEE80211_SEQ_TO_SN(mvmsta->tid_data[tid].seq_number);
1365c20e08b0SJohannes Berg spin_unlock_bh(&mvmsta->lock);
1366c20e08b0SJohannes Berg
1367cfbc6c4cSSara Sharon if (tid == IWL_MAX_TID_COUNT) {
1368c8ee33e1SGregory Greenman queue = iwl_mvm_find_free_queue(mvm, mvmsta->deflink.sta_id,
1369c20e08b0SJohannes Berg IWL_MVM_DQA_MIN_MGMT_QUEUE,
1370c20e08b0SJohannes Berg IWL_MVM_DQA_MAX_MGMT_QUEUE);
1371c20e08b0SJohannes Berg if (queue >= IWL_MVM_DQA_MIN_MGMT_QUEUE)
1372c20e08b0SJohannes Berg IWL_DEBUG_TX_QUEUES(mvm, "Found free MGMT queue #%d\n",
1373c20e08b0SJohannes Berg queue);
1374c20e08b0SJohannes Berg
1375c20e08b0SJohannes Berg /* If no such queue is found, we'll use a DATA queue instead */
1376c20e08b0SJohannes Berg }
1377c20e08b0SJohannes Berg
1378c20e08b0SJohannes Berg if ((queue < 0 && mvmsta->reserved_queue != IEEE80211_INVAL_HW_QUEUE) &&
1379c20e08b0SJohannes Berg (mvm->queue_info[mvmsta->reserved_queue].status ==
1380724fe771SJohannes Berg IWL_MVM_QUEUE_RESERVED)) {
1381c20e08b0SJohannes Berg queue = mvmsta->reserved_queue;
1382c20e08b0SJohannes Berg mvm->queue_info[queue].reserved = true;
1383c20e08b0SJohannes Berg IWL_DEBUG_TX_QUEUES(mvm, "Using reserved queue #%d\n", queue);
1384c20e08b0SJohannes Berg }
1385c20e08b0SJohannes Berg
1386c20e08b0SJohannes Berg if (queue < 0)
1387c8ee33e1SGregory Greenman queue = iwl_mvm_find_free_queue(mvm, mvmsta->deflink.sta_id,
1388c20e08b0SJohannes Berg IWL_MVM_DQA_MIN_DATA_QUEUE,
1389c20e08b0SJohannes Berg IWL_MVM_DQA_MAX_DATA_QUEUE);
1390724fe771SJohannes Berg if (queue < 0) {
1391724fe771SJohannes Berg /* try harder - perhaps kill an inactive queue */
1392c8ee33e1SGregory Greenman queue = iwl_mvm_inactivity_check(mvm, mvmsta->deflink.sta_id);
1393c20e08b0SJohannes Berg }
1394c20e08b0SJohannes Berg
1395c20e08b0SJohannes Berg /* No free queue - we'll have to share */
1396c20e08b0SJohannes Berg if (queue <= 0) {
1397c20e08b0SJohannes Berg queue = iwl_mvm_get_shared_queue(mvm, tfd_queue_mask, ac);
1398c20e08b0SJohannes Berg if (queue > 0) {
1399c20e08b0SJohannes Berg shared_queue = true;
1400c20e08b0SJohannes Berg mvm->queue_info[queue].status = IWL_MVM_QUEUE_SHARED;
1401c20e08b0SJohannes Berg }
1402c20e08b0SJohannes Berg }
1403c20e08b0SJohannes Berg
1404c20e08b0SJohannes Berg /*
1405c20e08b0SJohannes Berg * Mark TXQ as ready, even though it hasn't been fully configured yet,
1406c20e08b0SJohannes Berg * to make sure no one else takes it.
1407c20e08b0SJohannes Berg * This will allow avoiding re-acquiring the lock at the end of the
1408c20e08b0SJohannes Berg * configuration. On error we'll mark it back as free.
1409c20e08b0SJohannes Berg */
1410c20e08b0SJohannes Berg if (queue > 0 && !shared_queue)
1411c20e08b0SJohannes Berg mvm->queue_info[queue].status = IWL_MVM_QUEUE_READY;
1412c20e08b0SJohannes Berg
1413c20e08b0SJohannes Berg /* This shouldn't happen - out of queues */
1414c20e08b0SJohannes Berg if (WARN_ON(queue <= 0)) {
1415c20e08b0SJohannes Berg IWL_ERR(mvm, "No available queues for tid %d on sta_id %d\n",
1416c20e08b0SJohannes Berg tid, cfg.sta_id);
1417c20e08b0SJohannes Berg return queue;
1418c20e08b0SJohannes Berg }
1419c20e08b0SJohannes Berg
1420c20e08b0SJohannes Berg /*
1421c20e08b0SJohannes Berg * Actual en/disablement of aggregations is through the ADD_STA HCMD,
1422c20e08b0SJohannes Berg * but for configuring the SCD to send A-MPDUs we need to mark the queue
1423c20e08b0SJohannes Berg * as aggregatable.
1424c20e08b0SJohannes Berg * Mark all DATA queues as allowing to be aggregated at some point
1425c20e08b0SJohannes Berg */
1426c20e08b0SJohannes Berg cfg.aggregate = (queue >= IWL_MVM_DQA_MIN_DATA_QUEUE ||
1427c20e08b0SJohannes Berg queue == IWL_MVM_DQA_BSS_CLIENT_QUEUE);
1428c20e08b0SJohannes Berg
1429c20e08b0SJohannes Berg IWL_DEBUG_TX_QUEUES(mvm,
1430c20e08b0SJohannes Berg "Allocating %squeue #%d to sta %d on tid %d\n",
1431c20e08b0SJohannes Berg shared_queue ? "shared " : "", queue,
1432c8ee33e1SGregory Greenman mvmsta->deflink.sta_id, tid);
1433c20e08b0SJohannes Berg
1434c20e08b0SJohannes Berg if (shared_queue) {
1435c20e08b0SJohannes Berg /* Disable any open aggs on this queue */
1436c20e08b0SJohannes Berg disable_agg_tids = iwl_mvm_get_queue_agg_tids(mvm, queue);
1437c20e08b0SJohannes Berg
1438c20e08b0SJohannes Berg if (disable_agg_tids) {
1439c20e08b0SJohannes Berg IWL_DEBUG_TX_QUEUES(mvm, "Disabling aggs on queue %d\n",
1440c20e08b0SJohannes Berg queue);
1441c20e08b0SJohannes Berg iwl_mvm_invalidate_sta_queue(mvm, queue,
1442c20e08b0SJohannes Berg disable_agg_tids, false);
1443c20e08b0SJohannes Berg }
1444c20e08b0SJohannes Berg }
1445c20e08b0SJohannes Berg
1446cfbc6c4cSSara Sharon inc_ssn = iwl_mvm_enable_txq(mvm, sta, queue, ssn, &cfg, wdg_timeout);
1447c20e08b0SJohannes Berg
1448c20e08b0SJohannes Berg /*
1449c20e08b0SJohannes Berg * Mark queue as shared in transport if shared
1450c20e08b0SJohannes Berg * Note this has to be done after queue enablement because enablement
1451c20e08b0SJohannes Berg * can also set this value, and there is no indication there to shared
1452c20e08b0SJohannes Berg * queues
1453c20e08b0SJohannes Berg */
1454c20e08b0SJohannes Berg if (shared_queue)
1455c20e08b0SJohannes Berg iwl_trans_txq_set_shared_mode(mvm->trans, queue, true);
1456c20e08b0SJohannes Berg
1457c20e08b0SJohannes Berg spin_lock_bh(&mvmsta->lock);
1458c20e08b0SJohannes Berg /*
1459c20e08b0SJohannes Berg * This looks racy, but it is not. We have only one packet for
1460c20e08b0SJohannes Berg * this ra/tid in our Tx path since we stop the Qdisc when we
1461c20e08b0SJohannes Berg * need to allocate a new TFD queue.
1462c20e08b0SJohannes Berg */
146335739348SSara Sharon if (inc_ssn) {
1464c20e08b0SJohannes Berg mvmsta->tid_data[tid].seq_number += 0x10;
146535739348SSara Sharon ssn = (ssn + 1) & IEEE80211_SCTL_SEQ;
146635739348SSara Sharon }
1467c20e08b0SJohannes Berg mvmsta->tid_data[tid].txq_id = queue;
1468c20e08b0SJohannes Berg mvmsta->tfd_queue_msk |= BIT(queue);
1469c20e08b0SJohannes Berg queue_state = mvmsta->tid_data[tid].state;
1470c20e08b0SJohannes Berg
1471c20e08b0SJohannes Berg if (mvmsta->reserved_queue == queue)
1472c20e08b0SJohannes Berg mvmsta->reserved_queue = IEEE80211_INVAL_HW_QUEUE;
1473c20e08b0SJohannes Berg spin_unlock_bh(&mvmsta->lock);
1474c20e08b0SJohannes Berg
1475c20e08b0SJohannes Berg if (!shared_queue) {
1476c20e08b0SJohannes Berg ret = iwl_mvm_sta_send_to_fw(mvm, sta, true, STA_MODIFY_QUEUES);
1477c20e08b0SJohannes Berg if (ret)
1478c20e08b0SJohannes Berg goto out_err;
1479c20e08b0SJohannes Berg
1480c20e08b0SJohannes Berg /* If we need to re-enable aggregations... */
1481c20e08b0SJohannes Berg if (queue_state == IWL_AGG_ON) {
1482c20e08b0SJohannes Berg ret = iwl_mvm_sta_tx_agg(mvm, sta, tid, queue, true);
1483c20e08b0SJohannes Berg if (ret)
1484c20e08b0SJohannes Berg goto out_err;
1485c20e08b0SJohannes Berg }
1486c20e08b0SJohannes Berg } else {
1487c20e08b0SJohannes Berg /* Redirect queue, if needed */
1488cfbc6c4cSSara Sharon ret = iwl_mvm_redirect_queue(mvm, queue, tid, ac, ssn,
1489cfbc6c4cSSara Sharon wdg_timeout, false,
1490cfbc6c4cSSara Sharon iwl_mvm_txq_from_tid(sta, tid));
1491c20e08b0SJohannes Berg if (ret)
1492c20e08b0SJohannes Berg goto out_err;
1493c20e08b0SJohannes Berg }
1494c20e08b0SJohannes Berg
1495c20e08b0SJohannes Berg return 0;
1496c20e08b0SJohannes Berg
1497c20e08b0SJohannes Berg out_err:
1498c6ce1c74SJohannes Berg queue_tmp = queue;
1499c8ee33e1SGregory Greenman iwl_mvm_disable_txq(mvm, sta, mvmsta->deflink.sta_id, &queue_tmp, tid);
1500c20e08b0SJohannes Berg
1501c20e08b0SJohannes Berg return ret;
1502c20e08b0SJohannes Berg }
1503c20e08b0SJohannes Berg
iwl_mvm_add_new_dqa_stream_wk(struct work_struct * wk)150424afba76SLiad Kaufman void iwl_mvm_add_new_dqa_stream_wk(struct work_struct *wk)
150524afba76SLiad Kaufman {
150624afba76SLiad Kaufman struct iwl_mvm *mvm = container_of(wk, struct iwl_mvm,
150724afba76SLiad Kaufman add_stream_wk);
150824afba76SLiad Kaufman
150924afba76SLiad Kaufman mutex_lock(&mvm->mutex);
151024afba76SLiad Kaufman
1511724fe771SJohannes Berg iwl_mvm_inactivity_check(mvm, IWL_MVM_INVALID_STA);
15129f9af3d7SLiad Kaufman
1513cfbc6c4cSSara Sharon while (!list_empty(&mvm->add_stream_txqs)) {
1514cfbc6c4cSSara Sharon struct iwl_mvm_txq *mvmtxq;
1515cfbc6c4cSSara Sharon struct ieee80211_txq *txq;
1516cfbc6c4cSSara Sharon u8 tid;
151724afba76SLiad Kaufman
1518cfbc6c4cSSara Sharon mvmtxq = list_first_entry(&mvm->add_stream_txqs,
1519cfbc6c4cSSara Sharon struct iwl_mvm_txq, list);
152024afba76SLiad Kaufman
1521cfbc6c4cSSara Sharon txq = container_of((void *)mvmtxq, struct ieee80211_txq,
1522cfbc6c4cSSara Sharon drv_priv);
1523cfbc6c4cSSara Sharon tid = txq->tid;
1524cfbc6c4cSSara Sharon if (tid == IEEE80211_NUM_TIDS)
1525cfbc6c4cSSara Sharon tid = IWL_MAX_TID_COUNT;
1526cfbc6c4cSSara Sharon
15273d1d87abSJohannes Berg /*
15283d1d87abSJohannes Berg * We can't really do much here, but if this fails we can't
15293d1d87abSJohannes Berg * transmit anyway - so just don't transmit the frame etc.
15303d1d87abSJohannes Berg * and let them back up ... we've tried our best to allocate
15313d1d87abSJohannes Berg * a queue in the function itself.
15323d1d87abSJohannes Berg */
15333d1d87abSJohannes Berg if (iwl_mvm_sta_alloc_queue(mvm, txq->sta, txq->ac, tid)) {
1534923bf981SJohannes Berg spin_lock_bh(&mvm->add_stream_lock);
15353d1d87abSJohannes Berg list_del_init(&mvmtxq->list);
1536923bf981SJohannes Berg spin_unlock_bh(&mvm->add_stream_lock);
15373d1d87abSJohannes Berg continue;
15383d1d87abSJohannes Berg }
15393d1d87abSJohannes Berg
1540923bf981SJohannes Berg /* now we're ready, any remaining races/concurrency will be
1541923bf981SJohannes Berg * handled in iwl_mvm_mac_itxq_xmit()
1542923bf981SJohannes Berg */
1543923bf981SJohannes Berg set_bit(IWL_MVM_TXQ_STATE_READY, &mvmtxq->state);
1544923bf981SJohannes Berg
1545f5ae2f93SJohannes Berg local_bh_disable();
1546923bf981SJohannes Berg spin_lock(&mvm->add_stream_lock);
1547923bf981SJohannes Berg list_del_init(&mvmtxq->list);
1548923bf981SJohannes Berg spin_unlock(&mvm->add_stream_lock);
1549923bf981SJohannes Berg
1550cfbc6c4cSSara Sharon iwl_mvm_mac_itxq_xmit(mvm->hw, txq);
1551f5ae2f93SJohannes Berg local_bh_enable();
155224afba76SLiad Kaufman }
155324afba76SLiad Kaufman
155424afba76SLiad Kaufman mutex_unlock(&mvm->mutex);
155524afba76SLiad Kaufman }
155624afba76SLiad Kaufman
iwl_mvm_reserve_sta_stream(struct iwl_mvm * mvm,struct ieee80211_sta * sta,enum nl80211_iftype vif_type)155724afba76SLiad Kaufman static int iwl_mvm_reserve_sta_stream(struct iwl_mvm *mvm,
1558d5216a28SLiad Kaufman struct ieee80211_sta *sta,
1559d5216a28SLiad Kaufman enum nl80211_iftype vif_type)
156024afba76SLiad Kaufman {
156124afba76SLiad Kaufman struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(sta);
156224afba76SLiad Kaufman int queue;
156324afba76SLiad Kaufman
1564396952eeSSara Sharon /* queue reserving is disabled on new TX path */
1565396952eeSSara Sharon if (WARN_ON(iwl_mvm_has_new_tx_api(mvm)))
1566396952eeSSara Sharon return 0;
1567396952eeSSara Sharon
1568724fe771SJohannes Berg /* run the general cleanup/unsharing of queues */
1569724fe771SJohannes Berg iwl_mvm_inactivity_check(mvm, IWL_MVM_INVALID_STA);
15709794c64fSLiad Kaufman
157124afba76SLiad Kaufman /* Make sure we have free resources for this STA */
1572d5216a28SLiad Kaufman if (vif_type == NL80211_IFTYPE_STATION && !sta->tdls &&
15731c14089eSJohannes Berg !mvm->queue_info[IWL_MVM_DQA_BSS_CLIENT_QUEUE].tid_bitmap &&
1574cf961e16SLiad Kaufman (mvm->queue_info[IWL_MVM_DQA_BSS_CLIENT_QUEUE].status ==
1575cf961e16SLiad Kaufman IWL_MVM_QUEUE_FREE))
1576d5216a28SLiad Kaufman queue = IWL_MVM_DQA_BSS_CLIENT_QUEUE;
1577d5216a28SLiad Kaufman else
1578c8ee33e1SGregory Greenman queue = iwl_mvm_find_free_queue(mvm, mvmsta->deflink.sta_id,
15799794c64fSLiad Kaufman IWL_MVM_DQA_MIN_DATA_QUEUE,
158024afba76SLiad Kaufman IWL_MVM_DQA_MAX_DATA_QUEUE);
158124afba76SLiad Kaufman if (queue < 0) {
1582724fe771SJohannes Berg /* try again - this time kick out a queue if needed */
1583c8ee33e1SGregory Greenman queue = iwl_mvm_inactivity_check(mvm, mvmsta->deflink.sta_id);
1584724fe771SJohannes Berg if (queue < 0) {
158524afba76SLiad Kaufman IWL_ERR(mvm, "No available queues for new station\n");
158624afba76SLiad Kaufman return -ENOSPC;
1587724fe771SJohannes Berg }
158824afba76SLiad Kaufman }
1589cf961e16SLiad Kaufman mvm->queue_info[queue].status = IWL_MVM_QUEUE_RESERVED;
159024afba76SLiad Kaufman
159124afba76SLiad Kaufman mvmsta->reserved_queue = queue;
159224afba76SLiad Kaufman
159324afba76SLiad Kaufman IWL_DEBUG_TX_QUEUES(mvm, "Reserving data queue #%d for sta_id %d\n",
1594c8ee33e1SGregory Greenman queue, mvmsta->deflink.sta_id);
159524afba76SLiad Kaufman
159624afba76SLiad Kaufman return 0;
159724afba76SLiad Kaufman }
159824afba76SLiad Kaufman
15998d98ae6eSLiad Kaufman /*
16008d98ae6eSLiad Kaufman * In DQA mode, after a HW restart the queues should be allocated as before, in
16018d98ae6eSLiad Kaufman * order to avoid race conditions when there are shared queues. This function
16028d98ae6eSLiad Kaufman * does the re-mapping and queue allocation.
16038d98ae6eSLiad Kaufman *
16048d98ae6eSLiad Kaufman * Note that re-enabling aggregations isn't done in this function.
16058d98ae6eSLiad Kaufman */
iwl_mvm_realloc_queues_after_restart(struct iwl_mvm * mvm,struct ieee80211_sta * sta)160687f7e243SMiri Korenblit void iwl_mvm_realloc_queues_after_restart(struct iwl_mvm *mvm,
1607cfbc6c4cSSara Sharon struct ieee80211_sta *sta)
16088d98ae6eSLiad Kaufman {
1609cfbc6c4cSSara Sharon struct iwl_mvm_sta *mvm_sta = iwl_mvm_sta_from_mac80211(sta);
1610cfbc6c4cSSara Sharon unsigned int wdg =
16118d98ae6eSLiad Kaufman iwl_mvm_get_wd_timeout(mvm, mvm_sta->vif, false, false);
16128d98ae6eSLiad Kaufman int i;
16138d98ae6eSLiad Kaufman struct iwl_trans_txq_scd_cfg cfg = {
1614c8ee33e1SGregory Greenman .sta_id = mvm_sta->deflink.sta_id,
16158d98ae6eSLiad Kaufman .frame_limit = IWL_FRAME_LIMIT,
16168d98ae6eSLiad Kaufman };
16178d98ae6eSLiad Kaufman
161803c902bfSJohannes Berg /* Make sure reserved queue is still marked as such (if allocated) */
161903c902bfSJohannes Berg if (mvm_sta->reserved_queue != IEEE80211_INVAL_HW_QUEUE)
16208d98ae6eSLiad Kaufman mvm->queue_info[mvm_sta->reserved_queue].status =
16218d98ae6eSLiad Kaufman IWL_MVM_QUEUE_RESERVED;
16228d98ae6eSLiad Kaufman
16238d98ae6eSLiad Kaufman for (i = 0; i <= IWL_MAX_TID_COUNT; i++) {
16248d98ae6eSLiad Kaufman struct iwl_mvm_tid_data *tid_data = &mvm_sta->tid_data[i];
16258d98ae6eSLiad Kaufman int txq_id = tid_data->txq_id;
16268d98ae6eSLiad Kaufman int ac;
16278d98ae6eSLiad Kaufman
16286862fceeSSara Sharon if (txq_id == IWL_MVM_INVALID_QUEUE)
16298d98ae6eSLiad Kaufman continue;
16308d98ae6eSLiad Kaufman
16318d98ae6eSLiad Kaufman ac = tid_to_mac80211_ac[i];
16328d98ae6eSLiad Kaufman
1633310181ecSSara Sharon if (iwl_mvm_has_new_tx_api(mvm)) {
1634310181ecSSara Sharon IWL_DEBUG_TX_QUEUES(mvm,
1635310181ecSSara Sharon "Re-mapping sta %d tid %d\n",
1636c8ee33e1SGregory Greenman mvm_sta->deflink.sta_id, i);
163709369983SJohannes Berg txq_id = iwl_mvm_tvqm_enable_txq(mvm, sta,
1638c8ee33e1SGregory Greenman mvm_sta->deflink.sta_id,
1639cfbc6c4cSSara Sharon i, wdg);
164091cf5dedSJohannes Berg /*
164191cf5dedSJohannes Berg * on failures, just set it to IWL_MVM_INVALID_QUEUE
164291cf5dedSJohannes Berg * to try again later, we have no other good way of
164391cf5dedSJohannes Berg * failing here
164491cf5dedSJohannes Berg */
164591cf5dedSJohannes Berg if (txq_id < 0)
164691cf5dedSJohannes Berg txq_id = IWL_MVM_INVALID_QUEUE;
1647310181ecSSara Sharon tid_data->txq_id = txq_id;
16485d39051aSLiad Kaufman
16495d39051aSLiad Kaufman /*
16505d39051aSLiad Kaufman * Since we don't set the seq number after reset, and HW
16515d39051aSLiad Kaufman * sets it now, FW reset will cause the seq num to start
16525d39051aSLiad Kaufman * at 0 again, so driver will need to update it
16535d39051aSLiad Kaufman * internally as well, so it keeps in sync with real val
16545d39051aSLiad Kaufman */
16555d39051aSLiad Kaufman tid_data->seq_number = 0;
1656310181ecSSara Sharon } else {
1657310181ecSSara Sharon u16 seq = IEEE80211_SEQ_TO_SN(tid_data->seq_number);
1658310181ecSSara Sharon
16598d98ae6eSLiad Kaufman cfg.tid = i;
1660cf6c6ea3SEmmanuel Grumbach cfg.fifo = iwl_mvm_mac_ac_to_tx_fifo(mvm, ac);
16618d98ae6eSLiad Kaufman cfg.aggregate = (txq_id >= IWL_MVM_DQA_MIN_DATA_QUEUE ||
1662310181ecSSara Sharon txq_id ==
1663310181ecSSara Sharon IWL_MVM_DQA_BSS_CLIENT_QUEUE);
16648d98ae6eSLiad Kaufman
16658d98ae6eSLiad Kaufman IWL_DEBUG_TX_QUEUES(mvm,
16668d98ae6eSLiad Kaufman "Re-mapping sta %d tid %d to queue %d\n",
1667c8ee33e1SGregory Greenman mvm_sta->deflink.sta_id, i,
1668c8ee33e1SGregory Greenman txq_id);
16698d98ae6eSLiad Kaufman
1670cfbc6c4cSSara Sharon iwl_mvm_enable_txq(mvm, sta, txq_id, seq, &cfg, wdg);
16718d98ae6eSLiad Kaufman mvm->queue_info[txq_id].status = IWL_MVM_QUEUE_READY;
16728d98ae6eSLiad Kaufman }
167334e10860SSara Sharon }
16748d98ae6eSLiad Kaufman }
16758d98ae6eSLiad Kaufman
iwl_mvm_add_int_sta_common(struct iwl_mvm * mvm,struct iwl_mvm_int_sta * sta,const u8 * addr,u16 mac_id,u16 color)1676732d06e9SShaul Triebitz static int iwl_mvm_add_int_sta_common(struct iwl_mvm *mvm,
1677732d06e9SShaul Triebitz struct iwl_mvm_int_sta *sta,
1678732d06e9SShaul Triebitz const u8 *addr,
1679732d06e9SShaul Triebitz u16 mac_id, u16 color)
1680732d06e9SShaul Triebitz {
1681732d06e9SShaul Triebitz struct iwl_mvm_add_sta_cmd cmd;
1682732d06e9SShaul Triebitz int ret;
16833f497de9SLuca Coelho u32 status = ADD_STA_SUCCESS;
1684732d06e9SShaul Triebitz
1685732d06e9SShaul Triebitz lockdep_assert_held(&mvm->mutex);
1686732d06e9SShaul Triebitz
1687732d06e9SShaul Triebitz memset(&cmd, 0, sizeof(cmd));
1688732d06e9SShaul Triebitz cmd.sta_id = sta->sta_id;
16892c2c3647SNathan Errera
16901724fc78SEmmanuel Grumbach if (iwl_mvm_has_new_station_api(mvm->fw) &&
16912c2c3647SNathan Errera sta->type == IWL_STA_AUX_ACTIVITY)
16922c2c3647SNathan Errera cmd.mac_id_n_color = cpu_to_le32(mac_id);
16932c2c3647SNathan Errera else
1694732d06e9SShaul Triebitz cmd.mac_id_n_color = cpu_to_le32(FW_CMD_ID_AND_COLOR(mac_id,
1695732d06e9SShaul Triebitz color));
16962c2c3647SNathan Errera
1697732d06e9SShaul Triebitz if (fw_has_api(&mvm->fw->ucode_capa, IWL_UCODE_TLV_API_STA_TYPE))
1698732d06e9SShaul Triebitz cmd.station_type = sta->type;
1699732d06e9SShaul Triebitz
1700732d06e9SShaul Triebitz if (!iwl_mvm_has_new_tx_api(mvm))
1701732d06e9SShaul Triebitz cmd.tfd_queue_msk = cpu_to_le32(sta->tfd_queue_msk);
1702732d06e9SShaul Triebitz cmd.tid_disable_tx = cpu_to_le16(0xffff);
1703732d06e9SShaul Triebitz
1704732d06e9SShaul Triebitz if (addr)
1705732d06e9SShaul Triebitz memcpy(cmd.addr, addr, ETH_ALEN);
1706732d06e9SShaul Triebitz
1707732d06e9SShaul Triebitz ret = iwl_mvm_send_cmd_pdu_status(mvm, ADD_STA,
1708732d06e9SShaul Triebitz iwl_mvm_add_sta_cmd_size(mvm),
1709732d06e9SShaul Triebitz &cmd, &status);
1710732d06e9SShaul Triebitz if (ret)
1711732d06e9SShaul Triebitz return ret;
1712732d06e9SShaul Triebitz
1713732d06e9SShaul Triebitz switch (status & IWL_ADD_STA_STATUS_MASK) {
1714732d06e9SShaul Triebitz case ADD_STA_SUCCESS:
1715732d06e9SShaul Triebitz IWL_DEBUG_INFO(mvm, "Internal station added.\n");
1716732d06e9SShaul Triebitz return 0;
1717732d06e9SShaul Triebitz default:
1718732d06e9SShaul Triebitz ret = -EIO;
1719732d06e9SShaul Triebitz IWL_ERR(mvm, "Add internal station failed, status=0x%x\n",
1720732d06e9SShaul Triebitz status);
1721732d06e9SShaul Triebitz break;
1722732d06e9SShaul Triebitz }
1723732d06e9SShaul Triebitz return ret;
1724732d06e9SShaul Triebitz }
1725732d06e9SShaul Triebitz
172669aef848SMiri Korenblit /* Initialize driver data of a new sta */
iwl_mvm_sta_init(struct iwl_mvm * mvm,struct ieee80211_vif * vif,struct ieee80211_sta * sta,int sta_id,u8 sta_type)172787f7e243SMiri Korenblit int iwl_mvm_sta_init(struct iwl_mvm *mvm, struct ieee80211_vif *vif,
172869aef848SMiri Korenblit struct ieee80211_sta *sta, int sta_id, u8 sta_type)
1729e705c121SKalle Valo {
1730e705c121SKalle Valo struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
1731e705c121SKalle Valo struct iwl_mvm_sta *mvm_sta = iwl_mvm_sta_from_mac80211(sta);
1732a571f5f6SSara Sharon struct iwl_mvm_rxq_dup_data *dup_data;
173369aef848SMiri Korenblit int i, ret = 0;
1734e705c121SKalle Valo
1735e705c121SKalle Valo lockdep_assert_held(&mvm->mutex);
1736e705c121SKalle Valo
1737e705c121SKalle Valo mvm_sta->mac_id_n_color = FW_CMD_ID_AND_COLOR(mvmvif->id,
1738e705c121SKalle Valo mvmvif->color);
1739e705c121SKalle Valo mvm_sta->vif = vif;
174057974a55SGregory Greenman
174157974a55SGregory Greenman /* for MLD sta_id(s) should be allocated for each link before calling
174257974a55SGregory Greenman * this function
174357974a55SGregory Greenman */
174457974a55SGregory Greenman if (!mvm->mld_api_is_used) {
174557974a55SGregory Greenman if (WARN_ON(sta_id == IWL_MVM_INVALID_STA))
174657974a55SGregory Greenman return -EINVAL;
174757974a55SGregory Greenman
174857974a55SGregory Greenman mvm_sta->deflink.sta_id = sta_id;
174957974a55SGregory Greenman rcu_assign_pointer(mvm_sta->link[0], &mvm_sta->deflink);
175057974a55SGregory Greenman
1751286ca8ebSLuca Coelho if (!mvm->trans->trans_cfg->gen2)
175259c2d94bSGregory Greenman mvm_sta->deflink.lq_sta.rs_drv.pers.max_agg_bufsize =
175357974a55SGregory Greenman LINK_QUAL_AGG_FRAME_LIMIT_DEF;
1754a58bb468SLiad Kaufman else
175559c2d94bSGregory Greenman mvm_sta->deflink.lq_sta.rs_drv.pers.max_agg_bufsize =
175657974a55SGregory Greenman LINK_QUAL_AGG_FRAME_LIMIT_GEN2_DEF;
175757974a55SGregory Greenman }
175857974a55SGregory Greenman
1759e705c121SKalle Valo mvm_sta->tt_tx_protection = false;
176069aef848SMiri Korenblit mvm_sta->sta_type = sta_type;
1761e705c121SKalle Valo
1762e705c121SKalle Valo mvm_sta->tid_disable_agg = 0xffff; /* No aggs at first */
1763e705c121SKalle Valo
176424afba76SLiad Kaufman for (i = 0; i <= IWL_MAX_TID_COUNT; i++) {
176524afba76SLiad Kaufman /*
176624afba76SLiad Kaufman * Mark all queues for this STA as unallocated and defer TX
176724afba76SLiad Kaufman * frames until the queue is allocated
176824afba76SLiad Kaufman */
17696862fceeSSara Sharon mvm_sta->tid_data[i].txq_id = IWL_MVM_INVALID_QUEUE;
1770e705c121SKalle Valo }
1771cfbc6c4cSSara Sharon
1772cfbc6c4cSSara Sharon for (i = 0; i < ARRAY_SIZE(sta->txq); i++) {
1773cfbc6c4cSSara Sharon struct iwl_mvm_txq *mvmtxq =
1774cfbc6c4cSSara Sharon iwl_mvm_txq_from_mac80211(sta->txq[i]);
1775cfbc6c4cSSara Sharon
1776cfbc6c4cSSara Sharon mvmtxq->txq_id = IWL_MVM_INVALID_QUEUE;
1777cfbc6c4cSSara Sharon INIT_LIST_HEAD(&mvmtxq->list);
1778fba8248eSSara Sharon atomic_set(&mvmtxq->tx_request, 0);
1779cfbc6c4cSSara Sharon }
1780cfbc6c4cSSara Sharon
178169aef848SMiri Korenblit if (iwl_mvm_has_new_rx_api(mvm)) {
178292c4dca6SJohannes Berg int q;
178392c4dca6SJohannes Berg
1784a571f5f6SSara Sharon dup_data = kcalloc(mvm->trans->num_rx_queues,
178592c4dca6SJohannes Berg sizeof(*dup_data), GFP_KERNEL);
1786a571f5f6SSara Sharon if (!dup_data)
1787a571f5f6SSara Sharon return -ENOMEM;
178892c4dca6SJohannes Berg /*
178992c4dca6SJohannes Berg * Initialize all the last_seq values to 0xffff which can never
179092c4dca6SJohannes Berg * compare equal to the frame's seq_ctrl in the check in
179192c4dca6SJohannes Berg * iwl_mvm_is_dup() since the lower 4 bits are the fragment
179292c4dca6SJohannes Berg * number and fragmented packets don't reach that function.
179392c4dca6SJohannes Berg *
179492c4dca6SJohannes Berg * This thus allows receiving a packet with seqno 0 and the
179592c4dca6SJohannes Berg * retry bit set as the very first packet on a new TID.
179692c4dca6SJohannes Berg */
179792c4dca6SJohannes Berg for (q = 0; q < mvm->trans->num_rx_queues; q++)
179892c4dca6SJohannes Berg memset(dup_data[q].last_seq, 0xff,
179992c4dca6SJohannes Berg sizeof(dup_data[q].last_seq));
1800a571f5f6SSara Sharon mvm_sta->dup_data = dup_data;
1801a571f5f6SSara Sharon }
1802a571f5f6SSara Sharon
1803c8f54701SJohannes Berg if (!iwl_mvm_has_new_tx_api(mvm)) {
1804d5216a28SLiad Kaufman ret = iwl_mvm_reserve_sta_stream(mvm, sta,
1805d5216a28SLiad Kaufman ieee80211_vif_type_p2p(vif));
180624afba76SLiad Kaufman if (ret)
180769aef848SMiri Korenblit return ret;
180824afba76SLiad Kaufman }
180924afba76SLiad Kaufman
18109f66a397SGregory Greenman /*
18119f66a397SGregory Greenman * if rs is registered with mac80211, then "add station" will be handled
18129f66a397SGregory Greenman * via the corresponding ops, otherwise need to notify rate scaling here
18139f66a397SGregory Greenman */
18144243edb4SEmmanuel Grumbach if (iwl_mvm_has_tlc_offload(mvm))
18159f66a397SGregory Greenman iwl_mvm_rs_add_sta(mvm, mvm_sta);
18160f8084cdSMordechay Goodstein else
1817c8ee33e1SGregory Greenman spin_lock_init(&mvm_sta->deflink.lq_sta.rs_drv.pers.lock);
18189f66a397SGregory Greenman
18190dde2440SAvraham Stern iwl_mvm_toggle_tx_ant(mvm, &mvm_sta->tx_ant);
18200dde2440SAvraham Stern
182169aef848SMiri Korenblit return 0;
182269aef848SMiri Korenblit }
182369aef848SMiri Korenblit
iwl_mvm_add_sta(struct iwl_mvm * mvm,struct ieee80211_vif * vif,struct ieee80211_sta * sta)182469aef848SMiri Korenblit int iwl_mvm_add_sta(struct iwl_mvm *mvm,
182569aef848SMiri Korenblit struct ieee80211_vif *vif,
182669aef848SMiri Korenblit struct ieee80211_sta *sta)
182769aef848SMiri Korenblit {
182869aef848SMiri Korenblit struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
182969aef848SMiri Korenblit struct iwl_mvm_sta *mvm_sta = iwl_mvm_sta_from_mac80211(sta);
183069aef848SMiri Korenblit int ret, sta_id;
183169aef848SMiri Korenblit bool sta_update = false;
183269aef848SMiri Korenblit unsigned int sta_flags = 0;
183369aef848SMiri Korenblit
183469aef848SMiri Korenblit lockdep_assert_held(&mvm->mutex);
183569aef848SMiri Korenblit
183669aef848SMiri Korenblit if (!test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status))
183769aef848SMiri Korenblit sta_id = iwl_mvm_find_free_sta_id(mvm,
183869aef848SMiri Korenblit ieee80211_vif_type_p2p(vif));
183969aef848SMiri Korenblit else
1840c8ee33e1SGregory Greenman sta_id = mvm_sta->deflink.sta_id;
184169aef848SMiri Korenblit
184269aef848SMiri Korenblit if (sta_id == IWL_MVM_INVALID_STA)
184369aef848SMiri Korenblit return -ENOSPC;
184469aef848SMiri Korenblit
184569aef848SMiri Korenblit spin_lock_init(&mvm_sta->lock);
184669aef848SMiri Korenblit
184769aef848SMiri Korenblit /* if this is a HW restart re-alloc existing queues */
184869aef848SMiri Korenblit if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status)) {
184969aef848SMiri Korenblit struct iwl_mvm_int_sta tmp_sta = {
185069aef848SMiri Korenblit .sta_id = sta_id,
185169aef848SMiri Korenblit .type = mvm_sta->sta_type,
185269aef848SMiri Korenblit };
185369aef848SMiri Korenblit
185469aef848SMiri Korenblit /* First add an empty station since allocating
185569aef848SMiri Korenblit * a queue requires a valid station
185669aef848SMiri Korenblit */
185769aef848SMiri Korenblit ret = iwl_mvm_add_int_sta_common(mvm, &tmp_sta, sta->addr,
185869aef848SMiri Korenblit mvmvif->id, mvmvif->color);
185969aef848SMiri Korenblit if (ret)
186069aef848SMiri Korenblit goto err;
186169aef848SMiri Korenblit
186269aef848SMiri Korenblit iwl_mvm_realloc_queues_after_restart(mvm, sta);
186369aef848SMiri Korenblit sta_update = true;
186469aef848SMiri Korenblit sta_flags = iwl_mvm_has_new_tx_api(mvm) ? 0 : STA_MODIFY_QUEUES;
186569aef848SMiri Korenblit goto update_fw;
186669aef848SMiri Korenblit }
186769aef848SMiri Korenblit
186869aef848SMiri Korenblit ret = iwl_mvm_sta_init(mvm, vif, sta, sta_id,
186969aef848SMiri Korenblit sta->tdls ? IWL_STA_TDLS_LINK : IWL_STA_LINK);
18708d507812SMukesh Sisodiya if (ret)
18718d507812SMukesh Sisodiya goto err;
187269aef848SMiri Korenblit
18738d98ae6eSLiad Kaufman update_fw:
1874732d06e9SShaul Triebitz ret = iwl_mvm_sta_send_to_fw(mvm, sta, sta_update, sta_flags);
1875e705c121SKalle Valo if (ret)
1876e705c121SKalle Valo goto err;
1877e705c121SKalle Valo
1878e705c121SKalle Valo if (vif->type == NL80211_IFTYPE_STATION) {
1879e705c121SKalle Valo if (!sta->tdls) {
1880650cadb7SGregory Greenman WARN_ON(mvmvif->deflink.ap_sta_id != IWL_MVM_INVALID_STA);
1881650cadb7SGregory Greenman mvmvif->deflink.ap_sta_id = sta_id;
1882e705c121SKalle Valo } else {
1883650cadb7SGregory Greenman WARN_ON(mvmvif->deflink.ap_sta_id == IWL_MVM_INVALID_STA);
1884e705c121SKalle Valo }
1885e705c121SKalle Valo }
1886e705c121SKalle Valo
1887e705c121SKalle Valo rcu_assign_pointer(mvm->fw_id_to_mac_id[sta_id], sta);
1888e705c121SKalle Valo
1889e705c121SKalle Valo return 0;
1890e705c121SKalle Valo
1891e705c121SKalle Valo err:
1892e705c121SKalle Valo return ret;
1893e705c121SKalle Valo }
1894e705c121SKalle Valo
iwl_mvm_drain_sta(struct iwl_mvm * mvm,struct iwl_mvm_sta * mvmsta,bool drain)1895e705c121SKalle Valo int iwl_mvm_drain_sta(struct iwl_mvm *mvm, struct iwl_mvm_sta *mvmsta,
1896e705c121SKalle Valo bool drain)
1897e705c121SKalle Valo {
1898e705c121SKalle Valo struct iwl_mvm_add_sta_cmd cmd = {};
1899e705c121SKalle Valo int ret;
1900e705c121SKalle Valo u32 status;
1901e705c121SKalle Valo
1902e705c121SKalle Valo lockdep_assert_held(&mvm->mutex);
1903e705c121SKalle Valo
1904e705c121SKalle Valo cmd.mac_id_n_color = cpu_to_le32(mvmsta->mac_id_n_color);
1905c8ee33e1SGregory Greenman cmd.sta_id = mvmsta->deflink.sta_id;
1906e705c121SKalle Valo cmd.add_modify = STA_MODE_MODIFY;
1907e705c121SKalle Valo cmd.station_flags = drain ? cpu_to_le32(STA_FLG_DRAIN_FLOW) : 0;
1908e705c121SKalle Valo cmd.station_flags_msk = cpu_to_le32(STA_FLG_DRAIN_FLOW);
1909e705c121SKalle Valo
1910e705c121SKalle Valo status = ADD_STA_SUCCESS;
1911854c5705SSara Sharon ret = iwl_mvm_send_cmd_pdu_status(mvm, ADD_STA,
1912854c5705SSara Sharon iwl_mvm_add_sta_cmd_size(mvm),
1913e705c121SKalle Valo &cmd, &status);
1914e705c121SKalle Valo if (ret)
1915e705c121SKalle Valo return ret;
1916e705c121SKalle Valo
1917837c4da9SSara Sharon switch (status & IWL_ADD_STA_STATUS_MASK) {
1918e705c121SKalle Valo case ADD_STA_SUCCESS:
1919e705c121SKalle Valo IWL_DEBUG_INFO(mvm, "Frames for staid %d will drained in fw\n",
1920c8ee33e1SGregory Greenman mvmsta->deflink.sta_id);
1921e705c121SKalle Valo break;
1922e705c121SKalle Valo default:
1923e705c121SKalle Valo ret = -EIO;
1924e705c121SKalle Valo IWL_ERR(mvm, "Couldn't drain frames for staid %d\n",
1925c8ee33e1SGregory Greenman mvmsta->deflink.sta_id);
1926e705c121SKalle Valo break;
1927e705c121SKalle Valo }
1928e705c121SKalle Valo
1929e705c121SKalle Valo return ret;
1930e705c121SKalle Valo }
1931e705c121SKalle Valo
1932e705c121SKalle Valo /*
1933e705c121SKalle Valo * Remove a station from the FW table. Before sending the command to remove
1934e705c121SKalle Valo * the station validate that the station is indeed known to the driver (sanity
1935e705c121SKalle Valo * only).
1936e705c121SKalle Valo */
iwl_mvm_rm_sta_common(struct iwl_mvm * mvm,u8 sta_id)1937e705c121SKalle Valo static int iwl_mvm_rm_sta_common(struct iwl_mvm *mvm, u8 sta_id)
1938e705c121SKalle Valo {
1939e705c121SKalle Valo struct ieee80211_sta *sta;
1940e705c121SKalle Valo struct iwl_mvm_rm_sta_cmd rm_sta_cmd = {
1941e705c121SKalle Valo .sta_id = sta_id,
1942e705c121SKalle Valo };
1943e705c121SKalle Valo int ret;
1944e705c121SKalle Valo
1945e705c121SKalle Valo sta = rcu_dereference_protected(mvm->fw_id_to_mac_id[sta_id],
1946e705c121SKalle Valo lockdep_is_held(&mvm->mutex));
1947e705c121SKalle Valo
1948e705c121SKalle Valo /* Note: internal stations are marked as error values */
1949e705c121SKalle Valo if (!sta) {
1950e705c121SKalle Valo IWL_ERR(mvm, "Invalid station id\n");
1951e705c121SKalle Valo return -EINVAL;
1952e705c121SKalle Valo }
1953e705c121SKalle Valo
1954e705c121SKalle Valo ret = iwl_mvm_send_cmd_pdu(mvm, REMOVE_STA, 0,
1955e705c121SKalle Valo sizeof(rm_sta_cmd), &rm_sta_cmd);
1956e705c121SKalle Valo if (ret) {
1957e705c121SKalle Valo IWL_ERR(mvm, "Failed to remove station. Id=%d\n", sta_id);
1958e705c121SKalle Valo return ret;
1959e705c121SKalle Valo }
1960e705c121SKalle Valo
1961e705c121SKalle Valo return 0;
1962e705c121SKalle Valo }
1963e705c121SKalle Valo
iwl_mvm_disable_sta_queues(struct iwl_mvm * mvm,struct ieee80211_vif * vif,struct ieee80211_sta * sta)196424afba76SLiad Kaufman static void iwl_mvm_disable_sta_queues(struct iwl_mvm *mvm,
196524afba76SLiad Kaufman struct ieee80211_vif *vif,
1966cfbc6c4cSSara Sharon struct ieee80211_sta *sta)
196724afba76SLiad Kaufman {
1968cfbc6c4cSSara Sharon struct iwl_mvm_sta *mvm_sta = iwl_mvm_sta_from_mac80211(sta);
196924afba76SLiad Kaufman int i;
197024afba76SLiad Kaufman
197124afba76SLiad Kaufman lockdep_assert_held(&mvm->mutex);
197224afba76SLiad Kaufman
197324afba76SLiad Kaufman for (i = 0; i < ARRAY_SIZE(mvm_sta->tid_data); i++) {
19746862fceeSSara Sharon if (mvm_sta->tid_data[i].txq_id == IWL_MVM_INVALID_QUEUE)
197524afba76SLiad Kaufman continue;
197624afba76SLiad Kaufman
1977c8ee33e1SGregory Greenman iwl_mvm_disable_txq(mvm, sta, mvm_sta->deflink.sta_id,
1978c5a976cfSJohannes Berg &mvm_sta->tid_data[i].txq_id, i);
19796862fceeSSara Sharon mvm_sta->tid_data[i].txq_id = IWL_MVM_INVALID_QUEUE;
198024afba76SLiad Kaufman }
1981cfbc6c4cSSara Sharon
1982cfbc6c4cSSara Sharon for (i = 0; i < ARRAY_SIZE(sta->txq); i++) {
1983cfbc6c4cSSara Sharon struct iwl_mvm_txq *mvmtxq =
1984cfbc6c4cSSara Sharon iwl_mvm_txq_from_mac80211(sta->txq[i]);
1985cfbc6c4cSSara Sharon
1986923bf981SJohannes Berg spin_lock_bh(&mvm->add_stream_lock);
1987cfbc6c4cSSara Sharon mvmtxq->txq_id = IWL_MVM_INVALID_QUEUE;
198814a3aacfSJose Ignacio Tornos Martinez list_del_init(&mvmtxq->list);
1989923bf981SJohannes Berg clear_bit(IWL_MVM_TXQ_STATE_READY, &mvmtxq->state);
1990923bf981SJohannes Berg spin_unlock_bh(&mvm->add_stream_lock);
1991cfbc6c4cSSara Sharon }
199224afba76SLiad Kaufman }
199324afba76SLiad Kaufman
iwl_mvm_wait_sta_queues_empty(struct iwl_mvm * mvm,struct iwl_mvm_sta * mvm_sta)1994d6d517b7SSara Sharon int iwl_mvm_wait_sta_queues_empty(struct iwl_mvm *mvm,
1995d6d517b7SSara Sharon struct iwl_mvm_sta *mvm_sta)
1996d6d517b7SSara Sharon {
1997bec9522aSSharon Dvir int i;
1998d6d517b7SSara Sharon
1999d6d517b7SSara Sharon for (i = 0; i < ARRAY_SIZE(mvm_sta->tid_data); i++) {
2000d6d517b7SSara Sharon u16 txq_id;
2001bec9522aSSharon Dvir int ret;
2002d6d517b7SSara Sharon
2003d6d517b7SSara Sharon spin_lock_bh(&mvm_sta->lock);
2004d6d517b7SSara Sharon txq_id = mvm_sta->tid_data[i].txq_id;
2005d6d517b7SSara Sharon spin_unlock_bh(&mvm_sta->lock);
2006d6d517b7SSara Sharon
2007d6d517b7SSara Sharon if (txq_id == IWL_MVM_INVALID_QUEUE)
2008d6d517b7SSara Sharon continue;
2009d6d517b7SSara Sharon
2010d6d517b7SSara Sharon ret = iwl_trans_wait_txq_empty(mvm->trans, txq_id);
2011d6d517b7SSara Sharon if (ret)
2012bec9522aSSharon Dvir return ret;
2013d6d517b7SSara Sharon }
2014d6d517b7SSara Sharon
2015bec9522aSSharon Dvir return 0;
2016d6d517b7SSara Sharon }
2017d6d517b7SSara Sharon
201887f7e243SMiri Korenblit /* Execute the common part for both MLD and non-MLD modes.
201987f7e243SMiri Korenblit * Returns if we're done with removing the station, either
202087f7e243SMiri Korenblit * with error or success
202187f7e243SMiri Korenblit */
iwl_mvm_sta_del(struct iwl_mvm * mvm,struct ieee80211_vif * vif,struct ieee80211_sta * sta,struct ieee80211_link_sta * link_sta,int * ret)202287f7e243SMiri Korenblit bool iwl_mvm_sta_del(struct iwl_mvm *mvm, struct ieee80211_vif *vif,
202357974a55SGregory Greenman struct ieee80211_sta *sta,
2024a6ef8a88SJohannes Berg struct ieee80211_link_sta *link_sta, int *ret)
2025e705c121SKalle Valo {
2026e705c121SKalle Valo struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
2027a6ef8a88SJohannes Berg struct iwl_mvm_vif_link_info *mvm_link =
2028a6ef8a88SJohannes Berg mvmvif->link[link_sta->link_id];
2029e705c121SKalle Valo struct iwl_mvm_sta *mvm_sta = iwl_mvm_sta_from_mac80211(sta);
2030a6ef8a88SJohannes Berg struct iwl_mvm_link_sta *mvm_link_sta;
2031a6ef8a88SJohannes Berg u8 sta_id;
203269aef848SMiri Korenblit
203369aef848SMiri Korenblit lockdep_assert_held(&mvm->mutex);
203469aef848SMiri Korenblit
2035a6ef8a88SJohannes Berg mvm_link_sta =
2036a6ef8a88SJohannes Berg rcu_dereference_protected(mvm_sta->link[link_sta->link_id],
2037a6ef8a88SJohannes Berg lockdep_is_held(&mvm->mutex));
2038a6ef8a88SJohannes Berg sta_id = mvm_link_sta->sta_id;
2039a6ef8a88SJohannes Berg
204069aef848SMiri Korenblit /* If there is a TXQ still marked as reserved - free it */
204169aef848SMiri Korenblit if (mvm_sta->reserved_queue != IEEE80211_INVAL_HW_QUEUE) {
204269aef848SMiri Korenblit u8 reserved_txq = mvm_sta->reserved_queue;
204369aef848SMiri Korenblit enum iwl_mvm_queue_status *status;
204469aef848SMiri Korenblit
204569aef848SMiri Korenblit /*
204669aef848SMiri Korenblit * If no traffic has gone through the reserved TXQ - it
204769aef848SMiri Korenblit * is still marked as IWL_MVM_QUEUE_RESERVED, and
204869aef848SMiri Korenblit * should be manually marked as free again
204969aef848SMiri Korenblit */
205069aef848SMiri Korenblit status = &mvm->queue_info[reserved_txq].status;
205169aef848SMiri Korenblit if (WARN((*status != IWL_MVM_QUEUE_RESERVED) &&
205269aef848SMiri Korenblit (*status != IWL_MVM_QUEUE_FREE),
205369aef848SMiri Korenblit "sta_id %d reserved txq %d status %d",
205469aef848SMiri Korenblit sta_id, reserved_txq, *status)) {
205569aef848SMiri Korenblit *ret = -EINVAL;
205669aef848SMiri Korenblit return true;
205769aef848SMiri Korenblit }
205869aef848SMiri Korenblit
205969aef848SMiri Korenblit *status = IWL_MVM_QUEUE_FREE;
206069aef848SMiri Korenblit }
206169aef848SMiri Korenblit
2062*7c59977fSJohannes Berg if (vif->type == NL80211_IFTYPE_STATION &&
2063*7c59977fSJohannes Berg mvm_link->ap_sta_id == sta_id) {
206469aef848SMiri Korenblit /* if associated - we can't remove the AP STA now */
206569aef848SMiri Korenblit if (vif->cfg.assoc)
206669aef848SMiri Korenblit return true;
206769aef848SMiri Korenblit
206869aef848SMiri Korenblit /* first remove remaining keys */
2069a6ef8a88SJohannes Berg iwl_mvm_sec_key_remove_ap(mvm, vif, mvm_link, 0);
207069aef848SMiri Korenblit
207169aef848SMiri Korenblit /* unassoc - go ahead - remove the AP STA now */
2072a6ef8a88SJohannes Berg mvm_link->ap_sta_id = IWL_MVM_INVALID_STA;
207369aef848SMiri Korenblit }
207469aef848SMiri Korenblit
207569aef848SMiri Korenblit /*
207669aef848SMiri Korenblit * This shouldn't happen - the TDLS channel switch should be canceled
207769aef848SMiri Korenblit * before the STA is removed.
207869aef848SMiri Korenblit */
207969aef848SMiri Korenblit if (WARN_ON_ONCE(mvm->tdls_cs.peer.sta_id == sta_id)) {
208069aef848SMiri Korenblit mvm->tdls_cs.peer.sta_id = IWL_MVM_INVALID_STA;
208169aef848SMiri Korenblit cancel_delayed_work(&mvm->tdls_cs.dwork);
208269aef848SMiri Korenblit }
208369aef848SMiri Korenblit
208469aef848SMiri Korenblit return false;
208569aef848SMiri Korenblit }
208669aef848SMiri Korenblit
iwl_mvm_rm_sta(struct iwl_mvm * mvm,struct ieee80211_vif * vif,struct ieee80211_sta * sta)2087e705c121SKalle Valo int iwl_mvm_rm_sta(struct iwl_mvm *mvm,
2088e705c121SKalle Valo struct ieee80211_vif *vif,
2089e705c121SKalle Valo struct ieee80211_sta *sta)
2090e705c121SKalle Valo {
2091e705c121SKalle Valo struct iwl_mvm_sta *mvm_sta = iwl_mvm_sta_from_mac80211(sta);
2092e705c121SKalle Valo int ret;
2093e705c121SKalle Valo
2094e705c121SKalle Valo lockdep_assert_held(&mvm->mutex);
2095e705c121SKalle Valo
2096e705c121SKalle Valo ret = iwl_mvm_drain_sta(mvm, mvm_sta, true);
2097e705c121SKalle Valo if (ret)
2098e705c121SKalle Valo return ret;
2099c8f54701SJohannes Berg
2100e705c121SKalle Valo /* flush its queues here since we are freeing mvm_sta */
2101d43701c5SJohannes Berg ret = iwl_mvm_flush_sta(mvm, mvm_sta->deflink.sta_id,
2102d43701c5SJohannes Berg mvm_sta->tfd_queue_msk);
2103e705c121SKalle Valo if (ret)
2104e705c121SKalle Valo return ret;
2105d6d517b7SSara Sharon if (iwl_mvm_has_new_tx_api(mvm)) {
2106d6d517b7SSara Sharon ret = iwl_mvm_wait_sta_queues_empty(mvm, mvm_sta);
2107d6d517b7SSara Sharon } else {
2108d6d517b7SSara Sharon u32 q_mask = mvm_sta->tfd_queue_msk;
2109d6d517b7SSara Sharon
2110a1a57877SSara Sharon ret = iwl_trans_wait_tx_queues_empty(mvm->trans,
2111d6d517b7SSara Sharon q_mask);
2112d6d517b7SSara Sharon }
2113e705c121SKalle Valo if (ret)
2114e705c121SKalle Valo return ret;
2115c8f54701SJohannes Berg
2116e705c121SKalle Valo ret = iwl_mvm_drain_sta(mvm, mvm_sta, false);
2117e705c121SKalle Valo
2118cfbc6c4cSSara Sharon iwl_mvm_disable_sta_queues(mvm, vif, sta);
211956214749SLiad Kaufman
2120a6ef8a88SJohannes Berg if (iwl_mvm_sta_del(mvm, vif, sta, &sta->deflink, &ret))
2121e705c121SKalle Valo return ret;
2122e705c121SKalle Valo
2123c8ee33e1SGregory Greenman ret = iwl_mvm_rm_sta_common(mvm, mvm_sta->deflink.sta_id);
2124c8ee33e1SGregory Greenman RCU_INIT_POINTER(mvm->fw_id_to_mac_id[mvm_sta->deflink.sta_id], NULL);
2125e705c121SKalle Valo
2126e705c121SKalle Valo return ret;
2127e705c121SKalle Valo }
2128e705c121SKalle Valo
iwl_mvm_rm_sta_id(struct iwl_mvm * mvm,struct ieee80211_vif * vif,u8 sta_id)2129e705c121SKalle Valo int iwl_mvm_rm_sta_id(struct iwl_mvm *mvm,
2130e705c121SKalle Valo struct ieee80211_vif *vif,
2131e705c121SKalle Valo u8 sta_id)
2132e705c121SKalle Valo {
2133e705c121SKalle Valo int ret = iwl_mvm_rm_sta_common(mvm, sta_id);
2134e705c121SKalle Valo
2135e705c121SKalle Valo lockdep_assert_held(&mvm->mutex);
2136e705c121SKalle Valo
2137e705c121SKalle Valo RCU_INIT_POINTER(mvm->fw_id_to_mac_id[sta_id], NULL);
2138e705c121SKalle Valo return ret;
2139e705c121SKalle Valo }
2140e705c121SKalle Valo
iwl_mvm_allocate_int_sta(struct iwl_mvm * mvm,struct iwl_mvm_int_sta * sta,u32 qmask,enum nl80211_iftype iftype,u8 type)21410e39eb03SChaya Rachel Ivgi int iwl_mvm_allocate_int_sta(struct iwl_mvm *mvm,
2142e705c121SKalle Valo struct iwl_mvm_int_sta *sta,
2143ced19f26SSara Sharon u32 qmask, enum nl80211_iftype iftype,
2144006c152aSMiri Korenblit u8 type)
2145e705c121SKalle Valo {
2146df65c8d1SAvraham Stern if (!test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status) ||
2147df65c8d1SAvraham Stern sta->sta_id == IWL_MVM_INVALID_STA) {
2148e705c121SKalle Valo sta->sta_id = iwl_mvm_find_free_sta_id(mvm, iftype);
21490ae98812SSara Sharon if (WARN_ON_ONCE(sta->sta_id == IWL_MVM_INVALID_STA))
2150e705c121SKalle Valo return -ENOSPC;
2151e705c121SKalle Valo }
2152e705c121SKalle Valo
2153e705c121SKalle Valo sta->tfd_queue_msk = qmask;
2154ced19f26SSara Sharon sta->type = type;
2155e705c121SKalle Valo
2156e705c121SKalle Valo /* put a non-NULL value so iterating over the stations won't stop */
21573e75668bSJohannes Berg RCU_INIT_POINTER(mvm->fw_id_to_mac_id[sta->sta_id], ERR_PTR(-EINVAL));
2158e705c121SKalle Valo return 0;
2159e705c121SKalle Valo }
2160e705c121SKalle Valo
iwl_mvm_dealloc_int_sta(struct iwl_mvm * mvm,struct iwl_mvm_int_sta * sta)216126d6c16bSSara Sharon void iwl_mvm_dealloc_int_sta(struct iwl_mvm *mvm, struct iwl_mvm_int_sta *sta)
2162e705c121SKalle Valo {
2163e705c121SKalle Valo RCU_INIT_POINTER(mvm->fw_id_to_mac_id[sta->sta_id], NULL);
2164e705c121SKalle Valo memset(sta, 0, sizeof(struct iwl_mvm_int_sta));
21650ae98812SSara Sharon sta->sta_id = IWL_MVM_INVALID_STA;
2166e705c121SKalle Valo }
2167e705c121SKalle Valo
iwl_mvm_enable_aux_snif_queue(struct iwl_mvm * mvm,u16 queue,u8 sta_id,u8 fifo)216891cf5dedSJohannes Berg static void iwl_mvm_enable_aux_snif_queue(struct iwl_mvm *mvm, u16 queue,
2169b13f43a4SEmmanuel Grumbach u8 sta_id, u8 fifo)
2170e705c121SKalle Valo {
21719617040eSEmmanuel Grumbach unsigned int wdg_timeout =
21729617040eSEmmanuel Grumbach mvm->trans->trans_cfg->base_params->wd_timeout;
217328d0793eSLiad Kaufman struct iwl_trans_txq_scd_cfg cfg = {
2174b13f43a4SEmmanuel Grumbach .fifo = fifo,
2175b13f43a4SEmmanuel Grumbach .sta_id = sta_id,
217628d0793eSLiad Kaufman .tid = IWL_MAX_TID_COUNT,
217728d0793eSLiad Kaufman .aggregate = false,
217828d0793eSLiad Kaufman .frame_limit = IWL_FRAME_LIMIT,
217928d0793eSLiad Kaufman };
218028d0793eSLiad Kaufman
218191cf5dedSJohannes Berg WARN_ON(iwl_mvm_has_new_tx_api(mvm));
218291cf5dedSJohannes Berg
218391cf5dedSJohannes Berg iwl_mvm_enable_txq(mvm, NULL, queue, 0, &cfg, wdg_timeout);
218428d0793eSLiad Kaufman }
218591cf5dedSJohannes Berg
iwl_mvm_enable_aux_snif_queue_tvqm(struct iwl_mvm * mvm,u8 sta_id)218691cf5dedSJohannes Berg static int iwl_mvm_enable_aux_snif_queue_tvqm(struct iwl_mvm *mvm, u8 sta_id)
218791cf5dedSJohannes Berg {
21889617040eSEmmanuel Grumbach unsigned int wdg_timeout =
21899617040eSEmmanuel Grumbach mvm->trans->trans_cfg->base_params->wd_timeout;
219091cf5dedSJohannes Berg
219191cf5dedSJohannes Berg WARN_ON(!iwl_mvm_has_new_tx_api(mvm));
219291cf5dedSJohannes Berg
219309369983SJohannes Berg return iwl_mvm_tvqm_enable_txq(mvm, NULL, sta_id, IWL_MAX_TID_COUNT,
219491cf5dedSJohannes Berg wdg_timeout);
219591cf5dedSJohannes Berg }
219691cf5dedSJohannes Berg
iwl_mvm_add_int_sta_with_queue(struct iwl_mvm * mvm,int macidx,int maccolor,u8 * addr,struct iwl_mvm_int_sta * sta,u16 * queue,int fifo)219791cf5dedSJohannes Berg static int iwl_mvm_add_int_sta_with_queue(struct iwl_mvm *mvm, int macidx,
2198be82ecd3SAvraham Stern int maccolor, u8 *addr,
219991cf5dedSJohannes Berg struct iwl_mvm_int_sta *sta,
220091cf5dedSJohannes Berg u16 *queue, int fifo)
220191cf5dedSJohannes Berg {
220291cf5dedSJohannes Berg int ret;
220391cf5dedSJohannes Berg
220491cf5dedSJohannes Berg /* Map queue to fifo - needs to happen before adding station */
220591cf5dedSJohannes Berg if (!iwl_mvm_has_new_tx_api(mvm))
220691cf5dedSJohannes Berg iwl_mvm_enable_aux_snif_queue(mvm, *queue, sta->sta_id, fifo);
220791cf5dedSJohannes Berg
2208be82ecd3SAvraham Stern ret = iwl_mvm_add_int_sta_common(mvm, sta, addr, macidx, maccolor);
220991cf5dedSJohannes Berg if (ret) {
221091cf5dedSJohannes Berg if (!iwl_mvm_has_new_tx_api(mvm))
2211c5a976cfSJohannes Berg iwl_mvm_disable_txq(mvm, NULL, sta->sta_id, queue,
221264ff7eb0SJohannes Berg IWL_MAX_TID_COUNT);
221391cf5dedSJohannes Berg return ret;
221491cf5dedSJohannes Berg }
221591cf5dedSJohannes Berg
221691cf5dedSJohannes Berg /*
221791cf5dedSJohannes Berg * For 22000 firmware and on we cannot add queue to a station unknown
221891cf5dedSJohannes Berg * to firmware so enable queue here - after the station was added
221991cf5dedSJohannes Berg */
222091cf5dedSJohannes Berg if (iwl_mvm_has_new_tx_api(mvm)) {
222191cf5dedSJohannes Berg int txq;
222291cf5dedSJohannes Berg
222391cf5dedSJohannes Berg txq = iwl_mvm_enable_aux_snif_queue_tvqm(mvm, sta->sta_id);
222491cf5dedSJohannes Berg if (txq < 0) {
222591cf5dedSJohannes Berg iwl_mvm_rm_sta_common(mvm, sta->sta_id);
222691cf5dedSJohannes Berg return txq;
222791cf5dedSJohannes Berg }
222891cf5dedSJohannes Berg
222991cf5dedSJohannes Berg *queue = txq;
223091cf5dedSJohannes Berg }
223191cf5dedSJohannes Berg
223291cf5dedSJohannes Berg return 0;
2233c5a719eeSSara Sharon }
2234c5a719eeSSara Sharon
iwl_mvm_add_aux_sta(struct iwl_mvm * mvm,u32 lmac_id)22352c2c3647SNathan Errera int iwl_mvm_add_aux_sta(struct iwl_mvm *mvm, u32 lmac_id)
2236c5a719eeSSara Sharon {
2237c5a719eeSSara Sharon int ret;
223872c20e60SAvraham Stern u32 qmask = mvm->aux_queue == IWL_MVM_INVALID_QUEUE ? 0 :
223972c20e60SAvraham Stern BIT(mvm->aux_queue);
2240c5a719eeSSara Sharon
2241c5a719eeSSara Sharon lockdep_assert_held(&mvm->mutex);
2242c5a719eeSSara Sharon
2243c5a719eeSSara Sharon /* Allocate aux station and assign to it the aux queue */
224472c20e60SAvraham Stern ret = iwl_mvm_allocate_int_sta(mvm, &mvm->aux_sta, qmask,
2245ced19f26SSara Sharon NL80211_IFTYPE_UNSPECIFIED,
2246ced19f26SSara Sharon IWL_STA_AUX_ACTIVITY);
2247c5a719eeSSara Sharon if (ret)
2248c5a719eeSSara Sharon return ret;
2249c5a719eeSSara Sharon
22502c2c3647SNathan Errera /*
22512c2c3647SNathan Errera * In CDB NICs we need to specify which lmac to use for aux activity
22522c2c3647SNathan Errera * using the mac_id argument place to send lmac_id to the function
22532c2c3647SNathan Errera */
22542c2c3647SNathan Errera ret = iwl_mvm_add_int_sta_with_queue(mvm, lmac_id, 0, NULL,
225591cf5dedSJohannes Berg &mvm->aux_sta, &mvm->aux_queue,
2256b13f43a4SEmmanuel Grumbach IWL_MVM_TX_FIFO_MCAST);
2257c5a719eeSSara Sharon if (ret) {
2258e705c121SKalle Valo iwl_mvm_dealloc_int_sta(mvm, &mvm->aux_sta);
2259e705c121SKalle Valo return ret;
2260e705c121SKalle Valo }
2261e705c121SKalle Valo
2262c5a719eeSSara Sharon return 0;
2263c5a719eeSSara Sharon }
2264c5a719eeSSara Sharon
iwl_mvm_add_snif_sta(struct iwl_mvm * mvm,struct ieee80211_vif * vif)22650e39eb03SChaya Rachel Ivgi int iwl_mvm_add_snif_sta(struct iwl_mvm *mvm, struct ieee80211_vif *vif)
22660e39eb03SChaya Rachel Ivgi {
22670e39eb03SChaya Rachel Ivgi struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
22680e39eb03SChaya Rachel Ivgi
22690e39eb03SChaya Rachel Ivgi lockdep_assert_held(&mvm->mutex);
2270b13f43a4SEmmanuel Grumbach
227191cf5dedSJohannes Berg return iwl_mvm_add_int_sta_with_queue(mvm, mvmvif->id, mvmvif->color,
2272be82ecd3SAvraham Stern NULL, &mvm->snif_sta,
2273be82ecd3SAvraham Stern &mvm->snif_queue,
2274b13f43a4SEmmanuel Grumbach IWL_MVM_TX_FIFO_BE);
22750e39eb03SChaya Rachel Ivgi }
22760e39eb03SChaya Rachel Ivgi
iwl_mvm_rm_snif_sta(struct iwl_mvm * mvm,struct ieee80211_vif * vif)22770e39eb03SChaya Rachel Ivgi int iwl_mvm_rm_snif_sta(struct iwl_mvm *mvm, struct ieee80211_vif *vif)
22780e39eb03SChaya Rachel Ivgi {
22790e39eb03SChaya Rachel Ivgi int ret;
22800e39eb03SChaya Rachel Ivgi
22810e39eb03SChaya Rachel Ivgi lockdep_assert_held(&mvm->mutex);
22820e39eb03SChaya Rachel Ivgi
2283e223e42aSGregory Greenman if (WARN_ON_ONCE(mvm->snif_sta.sta_id == IWL_MVM_INVALID_STA))
2284e223e42aSGregory Greenman return -EINVAL;
2285e223e42aSGregory Greenman
2286c5a976cfSJohannes Berg iwl_mvm_disable_txq(mvm, NULL, mvm->snif_sta.sta_id,
2287c5a976cfSJohannes Berg &mvm->snif_queue, IWL_MAX_TID_COUNT);
22880e39eb03SChaya Rachel Ivgi ret = iwl_mvm_rm_sta_common(mvm, mvm->snif_sta.sta_id);
22890e39eb03SChaya Rachel Ivgi if (ret)
22900e39eb03SChaya Rachel Ivgi IWL_WARN(mvm, "Failed sending remove station\n");
22910e39eb03SChaya Rachel Ivgi
22920e39eb03SChaya Rachel Ivgi return ret;
22930e39eb03SChaya Rachel Ivgi }
22940e39eb03SChaya Rachel Ivgi
iwl_mvm_rm_aux_sta(struct iwl_mvm * mvm)2295f327236dSSharon int iwl_mvm_rm_aux_sta(struct iwl_mvm *mvm)
2296f327236dSSharon {
2297f327236dSSharon int ret;
2298f327236dSSharon
2299f327236dSSharon lockdep_assert_held(&mvm->mutex);
2300f327236dSSharon
2301e223e42aSGregory Greenman if (WARN_ON_ONCE(mvm->aux_sta.sta_id == IWL_MVM_INVALID_STA))
2302e223e42aSGregory Greenman return -EINVAL;
2303e223e42aSGregory Greenman
2304c5a976cfSJohannes Berg iwl_mvm_disable_txq(mvm, NULL, mvm->aux_sta.sta_id,
2305c5a976cfSJohannes Berg &mvm->aux_queue, IWL_MAX_TID_COUNT);
2306f327236dSSharon ret = iwl_mvm_rm_sta_common(mvm, mvm->aux_sta.sta_id);
2307f327236dSSharon if (ret)
2308f327236dSSharon IWL_WARN(mvm, "Failed sending remove station\n");
2309f327236dSSharon iwl_mvm_dealloc_int_sta(mvm, &mvm->aux_sta);
2310f327236dSSharon
2311f327236dSSharon return ret;
2312f327236dSSharon }
2313f327236dSSharon
iwl_mvm_dealloc_snif_sta(struct iwl_mvm * mvm)23140e39eb03SChaya Rachel Ivgi void iwl_mvm_dealloc_snif_sta(struct iwl_mvm *mvm)
23150e39eb03SChaya Rachel Ivgi {
23160e39eb03SChaya Rachel Ivgi iwl_mvm_dealloc_int_sta(mvm, &mvm->snif_sta);
23170e39eb03SChaya Rachel Ivgi }
23180e39eb03SChaya Rachel Ivgi
2319e705c121SKalle Valo /*
2320e705c121SKalle Valo * Send the add station command for the vif's broadcast station.
2321e705c121SKalle Valo * Assumes that the station was already allocated.
2322e705c121SKalle Valo *
2323e705c121SKalle Valo * @mvm: the mvm component
2324e705c121SKalle Valo * @vif: the interface to which the broadcast station is added
2325e705c121SKalle Valo * @bsta: the broadcast station to add.
2326e705c121SKalle Valo */
iwl_mvm_send_add_bcast_sta(struct iwl_mvm * mvm,struct ieee80211_vif * vif)2327e705c121SKalle Valo int iwl_mvm_send_add_bcast_sta(struct iwl_mvm *mvm, struct ieee80211_vif *vif)
2328e705c121SKalle Valo {
2329e705c121SKalle Valo struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
2330650cadb7SGregory Greenman struct iwl_mvm_int_sta *bsta = &mvmvif->deflink.bcast_sta;
2331e705c121SKalle Valo static const u8 _baddr[] = {0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF};
2332e705c121SKalle Valo const u8 *baddr = _baddr;
23337daa7624SJohannes Berg int queue;
2334df88c08dSLiad Kaufman int ret;
2335c5a719eeSSara Sharon unsigned int wdg_timeout =
2336c5a719eeSSara Sharon iwl_mvm_get_wd_timeout(mvm, vif, false, false);
2337de24f638SLiad Kaufman struct iwl_trans_txq_scd_cfg cfg = {
2338de24f638SLiad Kaufman .fifo = IWL_MVM_TX_FIFO_VO,
2339650cadb7SGregory Greenman .sta_id = mvmvif->deflink.bcast_sta.sta_id,
2340de24f638SLiad Kaufman .tid = IWL_MAX_TID_COUNT,
2341de24f638SLiad Kaufman .aggregate = false,
2342de24f638SLiad Kaufman .frame_limit = IWL_FRAME_LIMIT,
2343de24f638SLiad Kaufman };
2344de24f638SLiad Kaufman
2345c5a719eeSSara Sharon lockdep_assert_held(&mvm->mutex);
2346c5a719eeSSara Sharon
2347c8f54701SJohannes Berg if (!iwl_mvm_has_new_tx_api(mvm)) {
23484d339989SLiad Kaufman if (vif->type == NL80211_IFTYPE_AP ||
2349f8510d67SNathan Chancellor vif->type == NL80211_IFTYPE_ADHOC) {
235049f71713SSara Sharon queue = mvm->probe_queue;
2351f8510d67SNathan Chancellor } else if (vif->type == NL80211_IFTYPE_P2P_DEVICE) {
235249f71713SSara Sharon queue = mvm->p2p_dev_queue;
2353f8510d67SNathan Chancellor } else {
2354f8510d67SNathan Chancellor WARN(1, "Missing required TXQ for adding bcast STA\n");
2355de24f638SLiad Kaufman return -EINVAL;
2356f8510d67SNathan Chancellor }
2357de24f638SLiad Kaufman
2358df88c08dSLiad Kaufman bsta->tfd_queue_msk |= BIT(queue);
2359c5a719eeSSara Sharon
2360cfbc6c4cSSara Sharon iwl_mvm_enable_txq(mvm, NULL, queue, 0, &cfg, wdg_timeout);
2361de24f638SLiad Kaufman }
2362de24f638SLiad Kaufman
2363e705c121SKalle Valo if (vif->type == NL80211_IFTYPE_ADHOC)
2364e705c121SKalle Valo baddr = vif->bss_conf.bssid;
2365e705c121SKalle Valo
23660ae98812SSara Sharon if (WARN_ON_ONCE(bsta->sta_id == IWL_MVM_INVALID_STA))
2367e705c121SKalle Valo return -ENOSPC;
2368e705c121SKalle Valo
2369df88c08dSLiad Kaufman ret = iwl_mvm_add_int_sta_common(mvm, bsta, baddr,
2370e705c121SKalle Valo mvmvif->id, mvmvif->color);
2371df88c08dSLiad Kaufman if (ret)
2372df88c08dSLiad Kaufman return ret;
2373df88c08dSLiad Kaufman
2374df88c08dSLiad Kaufman /*
23752f7a3863SLuca Coelho * For 22000 firmware and on we cannot add queue to a station unknown
2376c5a719eeSSara Sharon * to firmware so enable queue here - after the station was added
2377df88c08dSLiad Kaufman */
2378310181ecSSara Sharon if (iwl_mvm_has_new_tx_api(mvm)) {
237909369983SJohannes Berg queue = iwl_mvm_tvqm_enable_txq(mvm, NULL, bsta->sta_id,
2380310181ecSSara Sharon IWL_MAX_TID_COUNT,
2381c5a719eeSSara Sharon wdg_timeout);
238291cf5dedSJohannes Berg if (queue < 0) {
238391cf5dedSJohannes Berg iwl_mvm_rm_sta_common(mvm, bsta->sta_id);
238491cf5dedSJohannes Berg return queue;
238591cf5dedSJohannes Berg }
23867daa7624SJohannes Berg
23877b758a11SLuca Coelho if (vif->type == NL80211_IFTYPE_AP ||
2388de50140bSJohannes Berg vif->type == NL80211_IFTYPE_ADHOC) {
2389de50140bSJohannes Berg /* for queue management */
2390310181ecSSara Sharon mvm->probe_queue = queue;
2391de50140bSJohannes Berg /* for use in TX */
2392de50140bSJohannes Berg mvmvif->deflink.mgmt_queue = queue;
2393de50140bSJohannes Berg } else if (vif->type == NL80211_IFTYPE_P2P_DEVICE) {
2394310181ecSSara Sharon mvm->p2p_dev_queue = queue;
2395310181ecSSara Sharon }
2396de50140bSJohannes Berg } else if (vif->type == NL80211_IFTYPE_AP ||
2397de50140bSJohannes Berg vif->type == NL80211_IFTYPE_ADHOC) {
2398de50140bSJohannes Berg /* set it for use in TX */
2399de50140bSJohannes Berg mvmvif->deflink.mgmt_queue = mvm->probe_queue;
2400de50140bSJohannes Berg }
2401df88c08dSLiad Kaufman
2402df88c08dSLiad Kaufman return 0;
2403df88c08dSLiad Kaufman }
2404df88c08dSLiad Kaufman
iwl_mvm_free_bcast_sta_queues(struct iwl_mvm * mvm,struct ieee80211_vif * vif)240560efeca1SMiri Korenblit void iwl_mvm_free_bcast_sta_queues(struct iwl_mvm *mvm,
2406df88c08dSLiad Kaufman struct ieee80211_vif *vif)
2407df88c08dSLiad Kaufman {
2408df88c08dSLiad Kaufman struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
2409c6ce1c74SJohannes Berg u16 *queueptr, queue;
2410df88c08dSLiad Kaufman
2411df88c08dSLiad Kaufman lockdep_assert_held(&mvm->mutex);
2412df88c08dSLiad Kaufman
2413d43701c5SJohannes Berg iwl_mvm_flush_sta(mvm, mvmvif->deflink.bcast_sta.sta_id,
2414d43701c5SJohannes Berg mvmvif->deflink.bcast_sta.tfd_queue_msk);
2415d49394a1SSara Sharon
2416d167e81aSMordechai Goodstein switch (vif->type) {
2417d167e81aSMordechai Goodstein case NL80211_IFTYPE_AP:
2418d167e81aSMordechai Goodstein case NL80211_IFTYPE_ADHOC:
2419c6ce1c74SJohannes Berg queueptr = &mvm->probe_queue;
2420d167e81aSMordechai Goodstein break;
2421d167e81aSMordechai Goodstein case NL80211_IFTYPE_P2P_DEVICE:
2422c6ce1c74SJohannes Berg queueptr = &mvm->p2p_dev_queue;
2423d167e81aSMordechai Goodstein break;
2424d167e81aSMordechai Goodstein default:
2425d167e81aSMordechai Goodstein WARN(1, "Can't free bcast queue on vif type %d\n",
2426d167e81aSMordechai Goodstein vif->type);
2427d167e81aSMordechai Goodstein return;
2428df88c08dSLiad Kaufman }
2429df88c08dSLiad Kaufman
2430c6ce1c74SJohannes Berg queue = *queueptr;
2431650cadb7SGregory Greenman iwl_mvm_disable_txq(mvm, NULL, mvmvif->deflink.bcast_sta.sta_id,
2432c5a976cfSJohannes Berg queueptr, IWL_MAX_TID_COUNT);
2433de50140bSJohannes Berg
2434de50140bSJohannes Berg if (vif->type == NL80211_IFTYPE_AP || vif->type == NL80211_IFTYPE_ADHOC)
2435de50140bSJohannes Berg mvmvif->deflink.mgmt_queue = mvm->probe_queue;
2436de50140bSJohannes Berg
2437d167e81aSMordechai Goodstein if (iwl_mvm_has_new_tx_api(mvm))
2438d167e81aSMordechai Goodstein return;
2439d167e81aSMordechai Goodstein
2440650cadb7SGregory Greenman WARN_ON(!(mvmvif->deflink.bcast_sta.tfd_queue_msk & BIT(queue)));
2441650cadb7SGregory Greenman mvmvif->deflink.bcast_sta.tfd_queue_msk &= ~BIT(queue);
2442e705c121SKalle Valo }
2443e705c121SKalle Valo
2444e705c121SKalle Valo /* Send the FW a request to remove the station from it's internal data
2445e705c121SKalle Valo * structures, but DO NOT remove the entry from the local data structures. */
iwl_mvm_send_rm_bcast_sta(struct iwl_mvm * mvm,struct ieee80211_vif * vif)2446e705c121SKalle Valo int iwl_mvm_send_rm_bcast_sta(struct iwl_mvm *mvm, struct ieee80211_vif *vif)
2447e705c121SKalle Valo {
2448e705c121SKalle Valo struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
2449e705c121SKalle Valo int ret;
2450e705c121SKalle Valo
2451e705c121SKalle Valo lockdep_assert_held(&mvm->mutex);
2452e705c121SKalle Valo
2453df88c08dSLiad Kaufman iwl_mvm_free_bcast_sta_queues(mvm, vif);
2454df88c08dSLiad Kaufman
2455650cadb7SGregory Greenman ret = iwl_mvm_rm_sta_common(mvm, mvmvif->deflink.bcast_sta.sta_id);
2456e705c121SKalle Valo if (ret)
2457e705c121SKalle Valo IWL_WARN(mvm, "Failed sending remove station\n");
2458e705c121SKalle Valo return ret;
2459e705c121SKalle Valo }
2460e705c121SKalle Valo
iwl_mvm_alloc_bcast_sta(struct iwl_mvm * mvm,struct ieee80211_vif * vif)2461e705c121SKalle Valo int iwl_mvm_alloc_bcast_sta(struct iwl_mvm *mvm, struct ieee80211_vif *vif)
2462e705c121SKalle Valo {
2463e705c121SKalle Valo struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
2464e705c121SKalle Valo
2465e705c121SKalle Valo lockdep_assert_held(&mvm->mutex);
2466e705c121SKalle Valo
2467650cadb7SGregory Greenman return iwl_mvm_allocate_int_sta(mvm, &mvmvif->deflink.bcast_sta, 0,
2468ced19f26SSara Sharon ieee80211_vif_type_p2p(vif),
2469ced19f26SSara Sharon IWL_STA_GENERAL_PURPOSE);
2470e705c121SKalle Valo }
2471e705c121SKalle Valo
2472e705c121SKalle Valo /* Allocate a new station entry for the broadcast station to the given vif,
2473e705c121SKalle Valo * and send it to the FW.
2474e705c121SKalle Valo * Note that each P2P mac should have its own broadcast station.
2475e705c121SKalle Valo *
2476e705c121SKalle Valo * @mvm: the mvm component
2477e705c121SKalle Valo * @vif: the interface to which the broadcast station is added
2478e705c121SKalle Valo * @bsta: the broadcast station to add. */
iwl_mvm_add_p2p_bcast_sta(struct iwl_mvm * mvm,struct ieee80211_vif * vif)2479d197358bSLuca Coelho int iwl_mvm_add_p2p_bcast_sta(struct iwl_mvm *mvm, struct ieee80211_vif *vif)
2480e705c121SKalle Valo {
2481e705c121SKalle Valo struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
2482650cadb7SGregory Greenman struct iwl_mvm_int_sta *bsta = &mvmvif->deflink.bcast_sta;
2483e705c121SKalle Valo int ret;
2484e705c121SKalle Valo
2485e705c121SKalle Valo lockdep_assert_held(&mvm->mutex);
2486e705c121SKalle Valo
2487e705c121SKalle Valo ret = iwl_mvm_alloc_bcast_sta(mvm, vif);
2488e705c121SKalle Valo if (ret)
2489e705c121SKalle Valo return ret;
2490e705c121SKalle Valo
2491e705c121SKalle Valo ret = iwl_mvm_send_add_bcast_sta(mvm, vif);
2492e705c121SKalle Valo
2493e705c121SKalle Valo if (ret)
2494e705c121SKalle Valo iwl_mvm_dealloc_int_sta(mvm, bsta);
2495e705c121SKalle Valo
2496e705c121SKalle Valo return ret;
2497e705c121SKalle Valo }
2498e705c121SKalle Valo
iwl_mvm_dealloc_bcast_sta(struct iwl_mvm * mvm,struct ieee80211_vif * vif)2499e705c121SKalle Valo void iwl_mvm_dealloc_bcast_sta(struct iwl_mvm *mvm, struct ieee80211_vif *vif)
2500e705c121SKalle Valo {
2501e705c121SKalle Valo struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
2502e705c121SKalle Valo
2503650cadb7SGregory Greenman iwl_mvm_dealloc_int_sta(mvm, &mvmvif->deflink.bcast_sta);
2504e705c121SKalle Valo }
2505e705c121SKalle Valo
2506e705c121SKalle Valo /*
2507e705c121SKalle Valo * Send the FW a request to remove the station from it's internal data
2508e705c121SKalle Valo * structures, and in addition remove it from the local data structure.
2509e705c121SKalle Valo */
iwl_mvm_rm_p2p_bcast_sta(struct iwl_mvm * mvm,struct ieee80211_vif * vif)2510d197358bSLuca Coelho int iwl_mvm_rm_p2p_bcast_sta(struct iwl_mvm *mvm, struct ieee80211_vif *vif)
2511e705c121SKalle Valo {
2512e705c121SKalle Valo int ret;
2513e705c121SKalle Valo
2514e705c121SKalle Valo lockdep_assert_held(&mvm->mutex);
2515e705c121SKalle Valo
2516e705c121SKalle Valo ret = iwl_mvm_send_rm_bcast_sta(mvm, vif);
2517e705c121SKalle Valo
2518e705c121SKalle Valo iwl_mvm_dealloc_bcast_sta(mvm, vif);
2519e705c121SKalle Valo
2520e705c121SKalle Valo return ret;
2521e705c121SKalle Valo }
2522e705c121SKalle Valo
252326d6c16bSSara Sharon /*
252426d6c16bSSara Sharon * Allocate a new station entry for the multicast station to the given vif,
252526d6c16bSSara Sharon * and send it to the FW.
252626d6c16bSSara Sharon * Note that each AP/GO mac should have its own multicast station.
252726d6c16bSSara Sharon *
252826d6c16bSSara Sharon * @mvm: the mvm component
252926d6c16bSSara Sharon * @vif: the interface to which the multicast station is added
253026d6c16bSSara Sharon */
iwl_mvm_add_mcast_sta(struct iwl_mvm * mvm,struct ieee80211_vif * vif)253126d6c16bSSara Sharon int iwl_mvm_add_mcast_sta(struct iwl_mvm *mvm, struct ieee80211_vif *vif)
253226d6c16bSSara Sharon {
253326d6c16bSSara Sharon struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
2534650cadb7SGregory Greenman struct iwl_mvm_int_sta *msta = &mvmvif->deflink.mcast_sta;
253526d6c16bSSara Sharon static const u8 _maddr[] = {0x03, 0x00, 0x00, 0x00, 0x00, 0x00};
253626d6c16bSSara Sharon const u8 *maddr = _maddr;
253726d6c16bSSara Sharon struct iwl_trans_txq_scd_cfg cfg = {
2538192a7e1fSJohannes Berg .fifo = vif->type == NL80211_IFTYPE_AP ?
2539192a7e1fSJohannes Berg IWL_MVM_TX_FIFO_MCAST : IWL_MVM_TX_FIFO_BE,
254026d6c16bSSara Sharon .sta_id = msta->sta_id,
25416508de03SIlan Peer .tid = 0,
254226d6c16bSSara Sharon .aggregate = false,
254326d6c16bSSara Sharon .frame_limit = IWL_FRAME_LIMIT,
254426d6c16bSSara Sharon };
254526d6c16bSSara Sharon unsigned int timeout = iwl_mvm_get_wd_timeout(mvm, vif, false, false);
254626d6c16bSSara Sharon int ret;
254726d6c16bSSara Sharon
254826d6c16bSSara Sharon lockdep_assert_held(&mvm->mutex);
254926d6c16bSSara Sharon
2550ee48b722SLiad Kaufman if (WARN_ON(vif->type != NL80211_IFTYPE_AP &&
2551ee48b722SLiad Kaufman vif->type != NL80211_IFTYPE_ADHOC))
255226d6c16bSSara Sharon return -ENOTSUPP;
255326d6c16bSSara Sharon
2554ced19f26SSara Sharon /*
2555fc07bd8cSSara Sharon * In IBSS, ieee80211_check_queues() sets the cab_queue to be
2556fc07bd8cSSara Sharon * invalid, so make sure we use the queue we want.
2557fc07bd8cSSara Sharon * Note that this is done here as we want to avoid making DQA
2558fc07bd8cSSara Sharon * changes in mac80211 layer.
2559fc07bd8cSSara Sharon */
2560cfbc6c4cSSara Sharon if (vif->type == NL80211_IFTYPE_ADHOC)
2561650cadb7SGregory Greenman mvmvif->deflink.cab_queue = IWL_MVM_DQA_GCAST_QUEUE;
2562fc07bd8cSSara Sharon
2563fc07bd8cSSara Sharon /*
2564ced19f26SSara Sharon * While in previous FWs we had to exclude cab queue from TFD queue
2565ced19f26SSara Sharon * mask, now it is needed as any other queue.
2566ced19f26SSara Sharon */
2567ced19f26SSara Sharon if (!iwl_mvm_has_new_tx_api(mvm) &&
2568ced19f26SSara Sharon fw_has_api(&mvm->fw->ucode_capa, IWL_UCODE_TLV_API_STA_TYPE)) {
2569650cadb7SGregory Greenman iwl_mvm_enable_txq(mvm, NULL, mvmvif->deflink.cab_queue, 0,
2570650cadb7SGregory Greenman &cfg,
2571cfbc6c4cSSara Sharon timeout);
2572650cadb7SGregory Greenman msta->tfd_queue_msk |= BIT(mvmvif->deflink.cab_queue);
2573ced19f26SSara Sharon }
257426d6c16bSSara Sharon ret = iwl_mvm_add_int_sta_common(mvm, msta, maddr,
257526d6c16bSSara Sharon mvmvif->id, mvmvif->color);
257691cf5dedSJohannes Berg if (ret)
257791cf5dedSJohannes Berg goto err;
257826d6c16bSSara Sharon
257926d6c16bSSara Sharon /*
258026d6c16bSSara Sharon * Enable cab queue after the ADD_STA command is sent.
25812f7a3863SLuca Coelho * This is needed for 22000 firmware which won't accept SCD_QUEUE_CFG
2582ced19f26SSara Sharon * command with unknown station id, and for FW that doesn't support
2583ced19f26SSara Sharon * station API since the cab queue is not included in the
2584ced19f26SSara Sharon * tfd_queue_mask.
258526d6c16bSSara Sharon */
2586310181ecSSara Sharon if (iwl_mvm_has_new_tx_api(mvm)) {
258709369983SJohannes Berg int queue = iwl_mvm_tvqm_enable_txq(mvm, NULL, msta->sta_id,
258809369983SJohannes Berg 0, timeout);
258991cf5dedSJohannes Berg if (queue < 0) {
259091cf5dedSJohannes Berg ret = queue;
259191cf5dedSJohannes Berg goto err;
259291cf5dedSJohannes Berg }
2593650cadb7SGregory Greenman mvmvif->deflink.cab_queue = queue;
2594ced19f26SSara Sharon } else if (!fw_has_api(&mvm->fw->ucode_capa,
2595fc07bd8cSSara Sharon IWL_UCODE_TLV_API_STA_TYPE))
2596650cadb7SGregory Greenman iwl_mvm_enable_txq(mvm, NULL, mvmvif->deflink.cab_queue, 0,
2597650cadb7SGregory Greenman &cfg,
2598cfbc6c4cSSara Sharon timeout);
259926d6c16bSSara Sharon
260026d6c16bSSara Sharon return 0;
260191cf5dedSJohannes Berg err:
260291cf5dedSJohannes Berg iwl_mvm_dealloc_int_sta(mvm, msta);
260391cf5dedSJohannes Berg return ret;
260426d6c16bSSara Sharon }
260526d6c16bSSara Sharon
__iwl_mvm_remove_sta_key(struct iwl_mvm * mvm,u8 sta_id,struct ieee80211_key_conf * keyconf,bool mcast)260628916a16SEmmanuel Grumbach static int __iwl_mvm_remove_sta_key(struct iwl_mvm *mvm, u8 sta_id,
260728916a16SEmmanuel Grumbach struct ieee80211_key_conf *keyconf,
260828916a16SEmmanuel Grumbach bool mcast)
260928916a16SEmmanuel Grumbach {
261028916a16SEmmanuel Grumbach union {
261128916a16SEmmanuel Grumbach struct iwl_mvm_add_sta_key_cmd_v1 cmd_v1;
261228916a16SEmmanuel Grumbach struct iwl_mvm_add_sta_key_cmd cmd;
261328916a16SEmmanuel Grumbach } u = {};
261428916a16SEmmanuel Grumbach bool new_api = fw_has_api(&mvm->fw->ucode_capa,
261528916a16SEmmanuel Grumbach IWL_UCODE_TLV_API_TKIP_MIC_KEYS);
261628916a16SEmmanuel Grumbach __le16 key_flags;
261728916a16SEmmanuel Grumbach int ret, size;
261828916a16SEmmanuel Grumbach u32 status;
261928916a16SEmmanuel Grumbach
262028916a16SEmmanuel Grumbach /* This is a valid situation for GTK removal */
262128916a16SEmmanuel Grumbach if (sta_id == IWL_MVM_INVALID_STA)
262228916a16SEmmanuel Grumbach return 0;
262328916a16SEmmanuel Grumbach
262428916a16SEmmanuel Grumbach key_flags = cpu_to_le16((keyconf->keyidx << STA_KEY_FLG_KEYID_POS) &
262528916a16SEmmanuel Grumbach STA_KEY_FLG_KEYID_MSK);
262628916a16SEmmanuel Grumbach key_flags |= cpu_to_le16(STA_KEY_FLG_NO_ENC | STA_KEY_FLG_WEP_KEY_MAP);
262728916a16SEmmanuel Grumbach key_flags |= cpu_to_le16(STA_KEY_NOT_VALID);
262828916a16SEmmanuel Grumbach
262928916a16SEmmanuel Grumbach if (mcast)
263028916a16SEmmanuel Grumbach key_flags |= cpu_to_le16(STA_KEY_MULTICAST);
263128916a16SEmmanuel Grumbach
263228916a16SEmmanuel Grumbach /*
263328916a16SEmmanuel Grumbach * The fields assigned here are in the same location at the start
263428916a16SEmmanuel Grumbach * of the command, so we can do this union trick.
263528916a16SEmmanuel Grumbach */
263628916a16SEmmanuel Grumbach u.cmd.common.key_flags = key_flags;
263728916a16SEmmanuel Grumbach u.cmd.common.key_offset = keyconf->hw_key_idx;
263828916a16SEmmanuel Grumbach u.cmd.common.sta_id = sta_id;
263928916a16SEmmanuel Grumbach
264028916a16SEmmanuel Grumbach size = new_api ? sizeof(u.cmd) : sizeof(u.cmd_v1);
264128916a16SEmmanuel Grumbach
264228916a16SEmmanuel Grumbach status = ADD_STA_SUCCESS;
264328916a16SEmmanuel Grumbach ret = iwl_mvm_send_cmd_pdu_status(mvm, ADD_STA_KEY, size, &u.cmd,
264428916a16SEmmanuel Grumbach &status);
264528916a16SEmmanuel Grumbach
264628916a16SEmmanuel Grumbach switch (status) {
264728916a16SEmmanuel Grumbach case ADD_STA_SUCCESS:
264828916a16SEmmanuel Grumbach IWL_DEBUG_WEP(mvm, "MODIFY_STA: remove sta key passed\n");
264928916a16SEmmanuel Grumbach break;
265028916a16SEmmanuel Grumbach default:
265128916a16SEmmanuel Grumbach ret = -EIO;
265228916a16SEmmanuel Grumbach IWL_ERR(mvm, "MODIFY_STA: remove sta key failed\n");
265328916a16SEmmanuel Grumbach break;
265428916a16SEmmanuel Grumbach }
265528916a16SEmmanuel Grumbach
265628916a16SEmmanuel Grumbach return ret;
265728916a16SEmmanuel Grumbach }
265828916a16SEmmanuel Grumbach
265926d6c16bSSara Sharon /*
266026d6c16bSSara Sharon * Send the FW a request to remove the station from it's internal data
266126d6c16bSSara Sharon * structures, and in addition remove it from the local data structure.
266226d6c16bSSara Sharon */
iwl_mvm_rm_mcast_sta(struct iwl_mvm * mvm,struct ieee80211_vif * vif)266326d6c16bSSara Sharon int iwl_mvm_rm_mcast_sta(struct iwl_mvm *mvm, struct ieee80211_vif *vif)
266426d6c16bSSara Sharon {
266526d6c16bSSara Sharon struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
266626d6c16bSSara Sharon int ret;
266726d6c16bSSara Sharon
266826d6c16bSSara Sharon lockdep_assert_held(&mvm->mutex);
266926d6c16bSSara Sharon
2670d43701c5SJohannes Berg iwl_mvm_flush_sta(mvm, mvmvif->deflink.mcast_sta.sta_id,
2671d43701c5SJohannes Berg mvmvif->deflink.mcast_sta.tfd_queue_msk);
2672d49394a1SSara Sharon
2673650cadb7SGregory Greenman iwl_mvm_disable_txq(mvm, NULL, mvmvif->deflink.mcast_sta.sta_id,
2674650cadb7SGregory Greenman &mvmvif->deflink.cab_queue, 0);
267526d6c16bSSara Sharon
2676650cadb7SGregory Greenman ret = iwl_mvm_rm_sta_common(mvm, mvmvif->deflink.mcast_sta.sta_id);
267726d6c16bSSara Sharon if (ret)
267826d6c16bSSara Sharon IWL_WARN(mvm, "Failed sending remove station\n");
267926d6c16bSSara Sharon
268026d6c16bSSara Sharon return ret;
268126d6c16bSSara Sharon }
268226d6c16bSSara Sharon
iwl_mvm_sync_rxq_del_ba(struct iwl_mvm * mvm,u8 baid)2683b915c101SSara Sharon static void iwl_mvm_sync_rxq_del_ba(struct iwl_mvm *mvm, u8 baid)
268410b2b201SSara Sharon {
26855e1688ceSJohannes Berg struct iwl_mvm_delba_data notif = {
26865e1688ceSJohannes Berg .baid = baid,
2687b915c101SSara Sharon };
26885e1688ceSJohannes Berg
26895e1688ceSJohannes Berg iwl_mvm_sync_rx_queues_internal(mvm, IWL_MVM_RXQ_NOTIF_DEL_BA, true,
26905e1688ceSJohannes Berg ¬if, sizeof(notif));
269110b2b201SSara Sharon };
269210b2b201SSara Sharon
iwl_mvm_free_reorder(struct iwl_mvm * mvm,struct iwl_mvm_baid_data * data)2693b915c101SSara Sharon static void iwl_mvm_free_reorder(struct iwl_mvm *mvm,
2694b915c101SSara Sharon struct iwl_mvm_baid_data *data)
2695b915c101SSara Sharon {
2696b915c101SSara Sharon int i;
2697b915c101SSara Sharon
2698b915c101SSara Sharon iwl_mvm_sync_rxq_del_ba(mvm, data->baid);
2699b915c101SSara Sharon
2700b915c101SSara Sharon for (i = 0; i < mvm->trans->num_rx_queues; i++) {
2701b915c101SSara Sharon int j;
2702b915c101SSara Sharon struct iwl_mvm_reorder_buffer *reorder_buf =
2703b915c101SSara Sharon &data->reorder_buf[i];
2704dfdddd92SJohannes Berg struct iwl_mvm_reorder_buf_entry *entries =
2705dfdddd92SJohannes Berg &data->entries[i * data->entries_per_queue];
2706b915c101SSara Sharon
27070690405fSSara Sharon spin_lock_bh(&reorder_buf->lock);
27080690405fSSara Sharon if (likely(!reorder_buf->num_stored)) {
27090690405fSSara Sharon spin_unlock_bh(&reorder_buf->lock);
2710b915c101SSara Sharon continue;
27110690405fSSara Sharon }
2712b915c101SSara Sharon
2713b915c101SSara Sharon /*
2714b915c101SSara Sharon * This shouldn't happen in regular DELBA since the internal
2715b915c101SSara Sharon * delBA notification should trigger a release of all frames in
2716b915c101SSara Sharon * the reorder buffer.
2717b915c101SSara Sharon */
2718b915c101SSara Sharon WARN_ON(1);
2719b915c101SSara Sharon
2720b915c101SSara Sharon for (j = 0; j < reorder_buf->buf_size; j++)
2721dfdddd92SJohannes Berg __skb_queue_purge(&entries[j].e.frames);
27220690405fSSara Sharon /*
27230690405fSSara Sharon * Prevent timer re-arm. This prevents a very far fetched case
27240690405fSSara Sharon * where we timed out on the notification. There may be prior
27250690405fSSara Sharon * RX frames pending in the RX queue before the notification
27260690405fSSara Sharon * that might get processed between now and the actual deletion
27270690405fSSara Sharon * and we would re-arm the timer although we are deleting the
27280690405fSSara Sharon * reorder buffer.
27290690405fSSara Sharon */
27300690405fSSara Sharon reorder_buf->removed = true;
27310690405fSSara Sharon spin_unlock_bh(&reorder_buf->lock);
27320690405fSSara Sharon del_timer_sync(&reorder_buf->reorder_timer);
2733b915c101SSara Sharon }
2734b915c101SSara Sharon }
2735b915c101SSara Sharon
iwl_mvm_init_reorder_buffer(struct iwl_mvm * mvm,struct iwl_mvm_baid_data * data,u16 ssn,u16 buf_size)2736b915c101SSara Sharon static void iwl_mvm_init_reorder_buffer(struct iwl_mvm *mvm,
2737b915c101SSara Sharon struct iwl_mvm_baid_data *data,
2738514c3069SLuca Coelho u16 ssn, u16 buf_size)
2739b915c101SSara Sharon {
2740b915c101SSara Sharon int i;
2741b915c101SSara Sharon
2742b915c101SSara Sharon for (i = 0; i < mvm->trans->num_rx_queues; i++) {
2743b915c101SSara Sharon struct iwl_mvm_reorder_buffer *reorder_buf =
2744b915c101SSara Sharon &data->reorder_buf[i];
2745dfdddd92SJohannes Berg struct iwl_mvm_reorder_buf_entry *entries =
2746dfdddd92SJohannes Berg &data->entries[i * data->entries_per_queue];
2747b915c101SSara Sharon int j;
2748b915c101SSara Sharon
2749b915c101SSara Sharon reorder_buf->num_stored = 0;
2750b915c101SSara Sharon reorder_buf->head_sn = ssn;
2751b915c101SSara Sharon reorder_buf->buf_size = buf_size;
27520690405fSSara Sharon /* rx reorder timer */
27538cef5344SKees Cook timer_setup(&reorder_buf->reorder_timer,
27548cef5344SKees Cook iwl_mvm_reorder_timer_expired, 0);
27550690405fSSara Sharon spin_lock_init(&reorder_buf->lock);
27560690405fSSara Sharon reorder_buf->mvm = mvm;
2757b915c101SSara Sharon reorder_buf->queue = i;
27585d43eab6SSara Sharon reorder_buf->valid = false;
2759b915c101SSara Sharon for (j = 0; j < reorder_buf->buf_size; j++)
2760dfdddd92SJohannes Berg __skb_queue_head_init(&entries[j].e.frames);
2761b915c101SSara Sharon }
276210b2b201SSara Sharon }
276310b2b201SSara Sharon
iwl_mvm_fw_baid_op_sta(struct iwl_mvm * mvm,struct ieee80211_sta * sta,bool start,int tid,u16 ssn,u16 buf_size)276497f70c56SJohannes Berg static int iwl_mvm_fw_baid_op_sta(struct iwl_mvm *mvm,
27659aa3856dSJohannes Berg struct ieee80211_sta *sta,
276697f70c56SJohannes Berg bool start, int tid, u16 ssn,
276797f70c56SJohannes Berg u16 buf_size)
27680f3a4e48SJohannes Berg {
27699aa3856dSJohannes Berg struct iwl_mvm_sta *mvm_sta = iwl_mvm_sta_from_mac80211(sta);
27700f3a4e48SJohannes Berg struct iwl_mvm_add_sta_cmd cmd = {
27710f3a4e48SJohannes Berg .mac_id_n_color = cpu_to_le32(mvm_sta->mac_id_n_color),
2772c8ee33e1SGregory Greenman .sta_id = mvm_sta->deflink.sta_id,
27730f3a4e48SJohannes Berg .add_modify = STA_MODE_MODIFY,
27740f3a4e48SJohannes Berg };
27750f3a4e48SJohannes Berg u32 status;
27760f3a4e48SJohannes Berg int ret;
27770f3a4e48SJohannes Berg
27780f3a4e48SJohannes Berg if (start) {
27790f3a4e48SJohannes Berg cmd.add_immediate_ba_tid = tid;
27800f3a4e48SJohannes Berg cmd.add_immediate_ba_ssn = cpu_to_le16(ssn);
27810f3a4e48SJohannes Berg cmd.rx_ba_window = cpu_to_le16(buf_size);
27820f3a4e48SJohannes Berg cmd.modify_mask = STA_MODIFY_ADD_BA_TID;
27830f3a4e48SJohannes Berg } else {
27840f3a4e48SJohannes Berg cmd.remove_immediate_ba_tid = tid;
27850f3a4e48SJohannes Berg cmd.modify_mask = STA_MODIFY_REMOVE_BA_TID;
27860f3a4e48SJohannes Berg }
27870f3a4e48SJohannes Berg
27880f3a4e48SJohannes Berg status = ADD_STA_SUCCESS;
27890f3a4e48SJohannes Berg ret = iwl_mvm_send_cmd_pdu_status(mvm, ADD_STA,
27900f3a4e48SJohannes Berg iwl_mvm_add_sta_cmd_size(mvm),
27910f3a4e48SJohannes Berg &cmd, &status);
27920f3a4e48SJohannes Berg if (ret)
27930f3a4e48SJohannes Berg return ret;
27940f3a4e48SJohannes Berg
27950f3a4e48SJohannes Berg switch (status & IWL_ADD_STA_STATUS_MASK) {
27960f3a4e48SJohannes Berg case ADD_STA_SUCCESS:
27970f3a4e48SJohannes Berg IWL_DEBUG_HT(mvm, "RX BA Session %sed in fw\n",
27980f3a4e48SJohannes Berg start ? "start" : "stopp");
27990f3a4e48SJohannes Berg if (WARN_ON(start && iwl_mvm_has_new_rx_api(mvm) &&
28000f3a4e48SJohannes Berg !(status & IWL_ADD_STA_BAID_VALID_MASK)))
28010f3a4e48SJohannes Berg return -EINVAL;
28020f3a4e48SJohannes Berg return u32_get_bits(status, IWL_ADD_STA_BAID_MASK);
28030f3a4e48SJohannes Berg case ADD_STA_IMMEDIATE_BA_FAILURE:
28040f3a4e48SJohannes Berg IWL_WARN(mvm, "RX BA Session refused by fw\n");
28050f3a4e48SJohannes Berg return -ENOSPC;
28060f3a4e48SJohannes Berg default:
28070f3a4e48SJohannes Berg IWL_ERR(mvm, "RX BA Session failed %sing, status 0x%x\n",
28080f3a4e48SJohannes Berg start ? "start" : "stopp", status);
28090f3a4e48SJohannes Berg return -EIO;
28100f3a4e48SJohannes Berg }
28110f3a4e48SJohannes Berg }
28120f3a4e48SJohannes Berg
iwl_mvm_fw_baid_op_cmd(struct iwl_mvm * mvm,struct ieee80211_sta * sta,bool start,int tid,u16 ssn,u16 buf_size,int baid)281397f70c56SJohannes Berg static int iwl_mvm_fw_baid_op_cmd(struct iwl_mvm *mvm,
28149aa3856dSJohannes Berg struct ieee80211_sta *sta,
281597f70c56SJohannes Berg bool start, int tid, u16 ssn,
281697f70c56SJohannes Berg u16 buf_size, int baid)
281797f70c56SJohannes Berg {
281897f70c56SJohannes Berg struct iwl_rx_baid_cfg_cmd cmd = {
281997f70c56SJohannes Berg .action = start ? cpu_to_le32(IWL_RX_BAID_ACTION_ADD) :
282097f70c56SJohannes Berg cpu_to_le32(IWL_RX_BAID_ACTION_REMOVE),
282197f70c56SJohannes Berg };
282297f70c56SJohannes Berg u32 cmd_id = WIDE_ID(DATA_PATH_GROUP, RX_BAID_ALLOCATION_CONFIG_CMD);
282397f70c56SJohannes Berg int ret;
282497f70c56SJohannes Berg
282597f70c56SJohannes Berg BUILD_BUG_ON(sizeof(struct iwl_rx_baid_cfg_resp) != sizeof(baid));
282697f70c56SJohannes Berg
282797f70c56SJohannes Berg if (start) {
2828c8ee33e1SGregory Greenman cmd.alloc.sta_id_mask =
28299aa3856dSJohannes Berg cpu_to_le32(iwl_mvm_sta_fw_id_mask(mvm, sta, -1));
283097f70c56SJohannes Berg cmd.alloc.tid = tid;
283197f70c56SJohannes Berg cmd.alloc.ssn = cpu_to_le16(ssn);
283297f70c56SJohannes Berg cmd.alloc.win_size = cpu_to_le16(buf_size);
283397f70c56SJohannes Berg baid = -EIO;
283426de4c8bSJohannes Berg } else if (iwl_fw_lookup_cmd_ver(mvm->fw, cmd_id, 1) == 1) {
283526de4c8bSJohannes Berg cmd.remove_v1.baid = cpu_to_le32(baid);
283626de4c8bSJohannes Berg BUILD_BUG_ON(sizeof(cmd.remove_v1) > sizeof(cmd.remove));
283797f70c56SJohannes Berg } else {
2838c8ee33e1SGregory Greenman cmd.remove.sta_id_mask =
28399aa3856dSJohannes Berg cpu_to_le32(iwl_mvm_sta_fw_id_mask(mvm, sta, -1));
284026de4c8bSJohannes Berg cmd.remove.tid = cpu_to_le32(tid);
284197f70c56SJohannes Berg }
284297f70c56SJohannes Berg
284397f70c56SJohannes Berg ret = iwl_mvm_send_cmd_pdu_status(mvm, cmd_id, sizeof(cmd),
284497f70c56SJohannes Berg &cmd, &baid);
284597f70c56SJohannes Berg if (ret)
284697f70c56SJohannes Berg return ret;
284797f70c56SJohannes Berg
284897f70c56SJohannes Berg if (!start) {
284997f70c56SJohannes Berg /* ignore firmware baid on remove */
285097f70c56SJohannes Berg baid = 0;
285197f70c56SJohannes Berg }
285297f70c56SJohannes Berg
285397f70c56SJohannes Berg IWL_DEBUG_HT(mvm, "RX BA Session %sed in fw\n",
285497f70c56SJohannes Berg start ? "start" : "stopp");
285597f70c56SJohannes Berg
285697f70c56SJohannes Berg if (baid < 0 || baid >= ARRAY_SIZE(mvm->baid_map))
285797f70c56SJohannes Berg return -EINVAL;
285897f70c56SJohannes Berg
285997f70c56SJohannes Berg return baid;
286097f70c56SJohannes Berg }
286197f70c56SJohannes Berg
iwl_mvm_fw_baid_op(struct iwl_mvm * mvm,struct ieee80211_sta * sta,bool start,int tid,u16 ssn,u16 buf_size,int baid)28629aa3856dSJohannes Berg static int iwl_mvm_fw_baid_op(struct iwl_mvm *mvm, struct ieee80211_sta *sta,
286397f70c56SJohannes Berg bool start, int tid, u16 ssn, u16 buf_size,
286497f70c56SJohannes Berg int baid)
286597f70c56SJohannes Berg {
286697f70c56SJohannes Berg if (fw_has_capa(&mvm->fw->ucode_capa,
286797f70c56SJohannes Berg IWL_UCODE_TLV_CAPA_BAID_ML_SUPPORT))
28689aa3856dSJohannes Berg return iwl_mvm_fw_baid_op_cmd(mvm, sta, start,
286997f70c56SJohannes Berg tid, ssn, buf_size, baid);
287097f70c56SJohannes Berg
28719aa3856dSJohannes Berg return iwl_mvm_fw_baid_op_sta(mvm, sta, start,
287297f70c56SJohannes Berg tid, ssn, buf_size);
287397f70c56SJohannes Berg }
287497f70c56SJohannes Berg
iwl_mvm_sta_rx_agg(struct iwl_mvm * mvm,struct ieee80211_sta * sta,int tid,u16 ssn,bool start,u16 buf_size,u16 timeout)2875e705c121SKalle Valo int iwl_mvm_sta_rx_agg(struct iwl_mvm *mvm, struct ieee80211_sta *sta,
2876514c3069SLuca Coelho int tid, u16 ssn, bool start, u16 buf_size, u16 timeout)
2877e705c121SKalle Valo {
2878e705c121SKalle Valo struct iwl_mvm_sta *mvm_sta = iwl_mvm_sta_from_mac80211(sta);
287910b2b201SSara Sharon struct iwl_mvm_baid_data *baid_data = NULL;
28800f3a4e48SJohannes Berg int ret, baid;
2881ded5ded3SEmmanuel Grumbach u32 max_ba_id_sessions = iwl_mvm_has_new_tx_api(mvm) ? IWL_MAX_BAID :
2882ded5ded3SEmmanuel Grumbach IWL_MAX_BAID_OLD;
2883e705c121SKalle Valo
2884e705c121SKalle Valo lockdep_assert_held(&mvm->mutex);
2885e705c121SKalle Valo
2886ded5ded3SEmmanuel Grumbach if (start && mvm->rx_ba_sessions >= max_ba_id_sessions) {
2887e705c121SKalle Valo IWL_WARN(mvm, "Not enough RX BA SESSIONS\n");
2888e705c121SKalle Valo return -ENOSPC;
2889e705c121SKalle Valo }
2890e705c121SKalle Valo
289110b2b201SSara Sharon if (iwl_mvm_has_new_rx_api(mvm) && start) {
28921a528ab1SJohannes Berg u32 reorder_buf_size = buf_size * sizeof(baid_data->entries[0]);
2893dfdddd92SJohannes Berg
2894dfdddd92SJohannes Berg /* sparse doesn't like the __align() so don't check */
2895dfdddd92SJohannes Berg #ifndef __CHECKER__
2896dfdddd92SJohannes Berg /*
2897dfdddd92SJohannes Berg * The division below will be OK if either the cache line size
2898dfdddd92SJohannes Berg * can be divided by the entry size (ALIGN will round up) or if
2899dfdddd92SJohannes Berg * if the entry size can be divided by the cache line size, in
2900dfdddd92SJohannes Berg * which case the ALIGN() will do nothing.
2901dfdddd92SJohannes Berg */
2902dfdddd92SJohannes Berg BUILD_BUG_ON(SMP_CACHE_BYTES % sizeof(baid_data->entries[0]) &&
2903dfdddd92SJohannes Berg sizeof(baid_data->entries[0]) % SMP_CACHE_BYTES);
2904dfdddd92SJohannes Berg #endif
2905dfdddd92SJohannes Berg
2906dfdddd92SJohannes Berg /*
2907dfdddd92SJohannes Berg * Upward align the reorder buffer size to fill an entire cache
2908dfdddd92SJohannes Berg * line for each queue, to avoid sharing cache lines between
2909dfdddd92SJohannes Berg * different queues.
2910dfdddd92SJohannes Berg */
2911dfdddd92SJohannes Berg reorder_buf_size = ALIGN(reorder_buf_size, SMP_CACHE_BYTES);
2912dfdddd92SJohannes Berg
291310b2b201SSara Sharon /*
291410b2b201SSara Sharon * Allocate here so if allocation fails we can bail out early
291510b2b201SSara Sharon * before starting the BA session in the firmware
291610b2b201SSara Sharon */
2917b915c101SSara Sharon baid_data = kzalloc(sizeof(*baid_data) +
2918b915c101SSara Sharon mvm->trans->num_rx_queues *
2919dfdddd92SJohannes Berg reorder_buf_size,
2920b915c101SSara Sharon GFP_KERNEL);
292110b2b201SSara Sharon if (!baid_data)
292210b2b201SSara Sharon return -ENOMEM;
2923dfdddd92SJohannes Berg
2924dfdddd92SJohannes Berg /*
2925dfdddd92SJohannes Berg * This division is why we need the above BUILD_BUG_ON(),
2926dfdddd92SJohannes Berg * if that doesn't hold then this will not be right.
2927dfdddd92SJohannes Berg */
2928dfdddd92SJohannes Berg baid_data->entries_per_queue =
2929dfdddd92SJohannes Berg reorder_buf_size / sizeof(baid_data->entries[0]);
293010b2b201SSara Sharon }
293110b2b201SSara Sharon
293297f70c56SJohannes Berg if (iwl_mvm_has_new_rx_api(mvm) && !start) {
293397f70c56SJohannes Berg baid = mvm_sta->tid_to_baid[tid];
293497f70c56SJohannes Berg } else {
293597f70c56SJohannes Berg /* we don't really need it in this case */
293697f70c56SJohannes Berg baid = -1;
293797f70c56SJohannes Berg }
293897f70c56SJohannes Berg
29393538c809SLuca Coelho /* Don't send command to remove (start=0) BAID during restart */
29403538c809SLuca Coelho if (start || !test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status))
29419aa3856dSJohannes Berg baid = iwl_mvm_fw_baid_op(mvm, sta, start, tid, ssn, buf_size,
294297f70c56SJohannes Berg baid);
29433538c809SLuca Coelho
29440f3a4e48SJohannes Berg if (baid < 0) {
29450f3a4e48SJohannes Berg ret = baid;
294610b2b201SSara Sharon goto out_free;
2947e705c121SKalle Valo }
2948e705c121SKalle Valo
294910b2b201SSara Sharon if (start) {
2950e705c121SKalle Valo mvm->rx_ba_sessions++;
295110b2b201SSara Sharon
295210b2b201SSara Sharon if (!iwl_mvm_has_new_rx_api(mvm))
295310b2b201SSara Sharon return 0;
295410b2b201SSara Sharon
295510b2b201SSara Sharon baid_data->baid = baid;
295610b2b201SSara Sharon baid_data->timeout = timeout;
295710b2b201SSara Sharon baid_data->last_rx = jiffies;
29588cef5344SKees Cook baid_data->rcu_ptr = &mvm->baid_map[baid];
29598cef5344SKees Cook timer_setup(&baid_data->session_timer,
29608cef5344SKees Cook iwl_mvm_rx_agg_session_expired, 0);
296110b2b201SSara Sharon baid_data->mvm = mvm;
296210b2b201SSara Sharon baid_data->tid = tid;
29639aa3856dSJohannes Berg baid_data->sta_mask = iwl_mvm_sta_fw_id_mask(mvm, sta, -1);
296410b2b201SSara Sharon
296510b2b201SSara Sharon mvm_sta->tid_to_baid[tid] = baid;
296610b2b201SSara Sharon if (timeout)
296710b2b201SSara Sharon mod_timer(&baid_data->session_timer,
296810b2b201SSara Sharon TU_TO_EXP_TIME(timeout * 2));
296910b2b201SSara Sharon
29703f1c4c58SSara Sharon iwl_mvm_init_reorder_buffer(mvm, baid_data, ssn, buf_size);
297110b2b201SSara Sharon /*
297210b2b201SSara Sharon * protect the BA data with RCU to cover a case where our
297310b2b201SSara Sharon * internal RX sync mechanism will timeout (not that it's
297410b2b201SSara Sharon * supposed to happen) and we will free the session data while
297510b2b201SSara Sharon * RX is being processed in parallel
297610b2b201SSara Sharon */
297735263a03SSara Sharon IWL_DEBUG_HT(mvm, "Sta %d(%d) is assigned to BAID %d\n",
2978c8ee33e1SGregory Greenman mvm_sta->deflink.sta_id, tid, baid);
297910b2b201SSara Sharon WARN_ON(rcu_access_pointer(mvm->baid_map[baid]));
298010b2b201SSara Sharon rcu_assign_pointer(mvm->baid_map[baid], baid_data);
298160dec523SSara Sharon } else {
29820f3a4e48SJohannes Berg baid = mvm_sta->tid_to_baid[tid];
298310b2b201SSara Sharon
298460dec523SSara Sharon if (mvm->rx_ba_sessions > 0)
2985e705c121SKalle Valo /* check that restart flow didn't zero the counter */
2986e705c121SKalle Valo mvm->rx_ba_sessions--;
298710b2b201SSara Sharon if (!iwl_mvm_has_new_rx_api(mvm))
298810b2b201SSara Sharon return 0;
2989e705c121SKalle Valo
299010b2b201SSara Sharon if (WARN_ON(baid == IWL_RX_REORDER_DATA_INVALID_BAID))
299110b2b201SSara Sharon return -EINVAL;
299210b2b201SSara Sharon
299310b2b201SSara Sharon baid_data = rcu_access_pointer(mvm->baid_map[baid]);
299410b2b201SSara Sharon if (WARN_ON(!baid_data))
299510b2b201SSara Sharon return -EINVAL;
299610b2b201SSara Sharon
299710b2b201SSara Sharon /* synchronize all rx queues so we can safely delete */
2998b915c101SSara Sharon iwl_mvm_free_reorder(mvm, baid_data);
2999292a089dSSteven Rostedt (Google) timer_shutdown_sync(&baid_data->session_timer);
300010b2b201SSara Sharon RCU_INIT_POINTER(mvm->baid_map[baid], NULL);
300110b2b201SSara Sharon kfree_rcu(baid_data, rcu_head);
300235263a03SSara Sharon IWL_DEBUG_HT(mvm, "BAID %d is free\n", baid);
30032438d430SJohannes Berg
30042438d430SJohannes Berg /*
30052438d430SJohannes Berg * After we've deleted it, do another queue sync
30062438d430SJohannes Berg * so if an IWL_MVM_RXQ_NSSN_SYNC was concurrently
30072438d430SJohannes Berg * running it won't find a new session in the old
30082438d430SJohannes Berg * BAID. It can find the NULL pointer for the BAID,
30092438d430SJohannes Berg * but we must not have it find a different session.
30102438d430SJohannes Berg */
30112438d430SJohannes Berg iwl_mvm_sync_rx_queues_internal(mvm, IWL_MVM_RXQ_EMPTY,
30122438d430SJohannes Berg true, NULL, 0);
301310b2b201SSara Sharon }
301410b2b201SSara Sharon return 0;
301510b2b201SSara Sharon
301610b2b201SSara Sharon out_free:
301710b2b201SSara Sharon kfree(baid_data);
3018e705c121SKalle Valo return ret;
3019e705c121SKalle Valo }
3020e705c121SKalle Valo
iwl_mvm_sta_tx_agg(struct iwl_mvm * mvm,struct ieee80211_sta * sta,int tid,u8 queue,bool start)30219794c64fSLiad Kaufman int iwl_mvm_sta_tx_agg(struct iwl_mvm *mvm, struct ieee80211_sta *sta,
3022e705c121SKalle Valo int tid, u8 queue, bool start)
3023e705c121SKalle Valo {
3024e705c121SKalle Valo struct iwl_mvm_sta *mvm_sta = iwl_mvm_sta_from_mac80211(sta);
3025e705c121SKalle Valo struct iwl_mvm_add_sta_cmd cmd = {};
3026e705c121SKalle Valo int ret;
3027e705c121SKalle Valo u32 status;
3028e705c121SKalle Valo
3029e705c121SKalle Valo lockdep_assert_held(&mvm->mutex);
3030e705c121SKalle Valo
3031e705c121SKalle Valo if (start) {
3032e705c121SKalle Valo mvm_sta->tfd_queue_msk |= BIT(queue);
3033e705c121SKalle Valo mvm_sta->tid_disable_agg &= ~BIT(tid);
3034e705c121SKalle Valo } else {
3035cf961e16SLiad Kaufman /* In DQA-mode the queue isn't removed on agg termination */
3036e705c121SKalle Valo mvm_sta->tid_disable_agg |= BIT(tid);
3037e705c121SKalle Valo }
3038e705c121SKalle Valo
3039e705c121SKalle Valo cmd.mac_id_n_color = cpu_to_le32(mvm_sta->mac_id_n_color);
3040c8ee33e1SGregory Greenman cmd.sta_id = mvm_sta->deflink.sta_id;
3041e705c121SKalle Valo cmd.add_modify = STA_MODE_MODIFY;
3042bb49701bSSara Sharon if (!iwl_mvm_has_new_tx_api(mvm))
3043bb49701bSSara Sharon cmd.modify_mask = STA_MODIFY_QUEUES;
3044bb49701bSSara Sharon cmd.modify_mask |= STA_MODIFY_TID_DISABLE_TX;
3045e705c121SKalle Valo cmd.tfd_queue_msk = cpu_to_le32(mvm_sta->tfd_queue_msk);
3046e705c121SKalle Valo cmd.tid_disable_tx = cpu_to_le16(mvm_sta->tid_disable_agg);
3047e705c121SKalle Valo
3048e705c121SKalle Valo status = ADD_STA_SUCCESS;
3049854c5705SSara Sharon ret = iwl_mvm_send_cmd_pdu_status(mvm, ADD_STA,
3050854c5705SSara Sharon iwl_mvm_add_sta_cmd_size(mvm),
3051e705c121SKalle Valo &cmd, &status);
3052e705c121SKalle Valo if (ret)
3053e705c121SKalle Valo return ret;
3054e705c121SKalle Valo
3055837c4da9SSara Sharon switch (status & IWL_ADD_STA_STATUS_MASK) {
3056e705c121SKalle Valo case ADD_STA_SUCCESS:
3057e705c121SKalle Valo break;
3058e705c121SKalle Valo default:
3059e705c121SKalle Valo ret = -EIO;
3060e705c121SKalle Valo IWL_ERR(mvm, "TX BA Session failed %sing, status 0x%x\n",
3061e705c121SKalle Valo start ? "start" : "stopp", status);
3062e705c121SKalle Valo break;
3063e705c121SKalle Valo }
3064e705c121SKalle Valo
3065e705c121SKalle Valo return ret;
3066e705c121SKalle Valo }
3067e705c121SKalle Valo
3068e705c121SKalle Valo const u8 tid_to_mac80211_ac[] = {
3069e705c121SKalle Valo IEEE80211_AC_BE,
3070e705c121SKalle Valo IEEE80211_AC_BK,
3071e705c121SKalle Valo IEEE80211_AC_BK,
3072e705c121SKalle Valo IEEE80211_AC_BE,
3073e705c121SKalle Valo IEEE80211_AC_VI,
3074e705c121SKalle Valo IEEE80211_AC_VI,
3075e705c121SKalle Valo IEEE80211_AC_VO,
3076e705c121SKalle Valo IEEE80211_AC_VO,
30779794c64fSLiad Kaufman IEEE80211_AC_VO, /* We treat MGMT as TID 8, which is set as AC_VO */
3078e705c121SKalle Valo };
3079e705c121SKalle Valo
3080e705c121SKalle Valo static const u8 tid_to_ucode_ac[] = {
3081e705c121SKalle Valo AC_BE,
3082e705c121SKalle Valo AC_BK,
3083e705c121SKalle Valo AC_BK,
3084e705c121SKalle Valo AC_BE,
3085e705c121SKalle Valo AC_VI,
3086e705c121SKalle Valo AC_VI,
3087e705c121SKalle Valo AC_VO,
3088e705c121SKalle Valo AC_VO,
3089e705c121SKalle Valo };
3090e705c121SKalle Valo
iwl_mvm_sta_tx_agg_start(struct iwl_mvm * mvm,struct ieee80211_vif * vif,struct ieee80211_sta * sta,u16 tid,u16 * ssn)3091e705c121SKalle Valo int iwl_mvm_sta_tx_agg_start(struct iwl_mvm *mvm, struct ieee80211_vif *vif,
3092e705c121SKalle Valo struct ieee80211_sta *sta, u16 tid, u16 *ssn)
3093e705c121SKalle Valo {
3094e705c121SKalle Valo struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(sta);
3095e705c121SKalle Valo struct iwl_mvm_tid_data *tid_data;
3096dd32162dSLiad Kaufman u16 normalized_ssn;
3097b0d795a9SMordechay Goodstein u16 txq_id;
3098e705c121SKalle Valo int ret;
3099e705c121SKalle Valo
3100e705c121SKalle Valo if (WARN_ON_ONCE(tid >= IWL_MAX_TID_COUNT))
3101e705c121SKalle Valo return -EINVAL;
3102e705c121SKalle Valo
3103bd800e41SNaftali Goldstein if (mvmsta->tid_data[tid].state != IWL_AGG_QUEUED &&
3104bd800e41SNaftali Goldstein mvmsta->tid_data[tid].state != IWL_AGG_OFF) {
3105bd800e41SNaftali Goldstein IWL_ERR(mvm,
3106bd800e41SNaftali Goldstein "Start AGG when state is not IWL_AGG_QUEUED or IWL_AGG_OFF %d!\n",
3107e705c121SKalle Valo mvmsta->tid_data[tid].state);
3108e705c121SKalle Valo return -ENXIO;
3109e705c121SKalle Valo }
3110e705c121SKalle Valo
3111e705c121SKalle Valo lockdep_assert_held(&mvm->mutex);
3112e705c121SKalle Valo
3113bd8f3fc6SLiad Kaufman if (mvmsta->tid_data[tid].txq_id == IWL_MVM_INVALID_QUEUE &&
3114bd8f3fc6SLiad Kaufman iwl_mvm_has_new_tx_api(mvm)) {
3115bd8f3fc6SLiad Kaufman u8 ac = tid_to_mac80211_ac[tid];
3116bd8f3fc6SLiad Kaufman
3117bd8f3fc6SLiad Kaufman ret = iwl_mvm_sta_alloc_queue_tvqm(mvm, sta, ac, tid);
3118bd8f3fc6SLiad Kaufman if (ret)
3119bd8f3fc6SLiad Kaufman return ret;
3120bd8f3fc6SLiad Kaufman }
3121bd8f3fc6SLiad Kaufman
3122e705c121SKalle Valo spin_lock_bh(&mvmsta->lock);
3123e705c121SKalle Valo
3124cf961e16SLiad Kaufman /*
3125cf961e16SLiad Kaufman * Note the possible cases:
31264a6d2e52SAvraham Stern * 1. An enabled TXQ - TXQ needs to become agg'ed
31274a6d2e52SAvraham Stern * 2. The TXQ hasn't yet been enabled, so find a free one and mark
31284a6d2e52SAvraham Stern * it as reserved
3129cf961e16SLiad Kaufman */
3130cf961e16SLiad Kaufman txq_id = mvmsta->tid_data[tid].txq_id;
313134e10860SSara Sharon if (txq_id == IWL_MVM_INVALID_QUEUE) {
3132c8ee33e1SGregory Greenman ret = iwl_mvm_find_free_queue(mvm, mvmsta->deflink.sta_id,
3133c8f54701SJohannes Berg IWL_MVM_DQA_MIN_DATA_QUEUE,
3134c8f54701SJohannes Berg IWL_MVM_DQA_MAX_DATA_QUEUE);
3135b0d795a9SMordechay Goodstein if (ret < 0) {
3136e705c121SKalle Valo IWL_ERR(mvm, "Failed to allocate agg queue\n");
3137f3f240f9SJohannes Berg goto out;
3138e705c121SKalle Valo }
3139cf961e16SLiad Kaufman
3140b0d795a9SMordechay Goodstein txq_id = ret;
3141b0d795a9SMordechay Goodstein
3142cf961e16SLiad Kaufman /* TXQ hasn't yet been enabled, so mark it only as reserved */
3143cf961e16SLiad Kaufman mvm->queue_info[txq_id].status = IWL_MVM_QUEUE_RESERVED;
3144b0d795a9SMordechay Goodstein } else if (WARN_ON(txq_id >= IWL_MAX_HW_QUEUES)) {
3145b0d795a9SMordechay Goodstein ret = -ENXIO;
3146b0d795a9SMordechay Goodstein IWL_ERR(mvm, "tid_id %d out of range (0, %d)!\n",
3147b0d795a9SMordechay Goodstein tid, IWL_MAX_HW_QUEUES - 1);
3148b0d795a9SMordechay Goodstein goto out;
3149b0d795a9SMordechay Goodstein
31504a6d2e52SAvraham Stern } else if (unlikely(mvm->queue_info[txq_id].status ==
31514a6d2e52SAvraham Stern IWL_MVM_QUEUE_SHARED)) {
31524a6d2e52SAvraham Stern ret = -ENXIO;
31534a6d2e52SAvraham Stern IWL_DEBUG_TX_QUEUES(mvm,
31544a6d2e52SAvraham Stern "Can't start tid %d agg on shared queue!\n",
31554a6d2e52SAvraham Stern tid);
3156f3f240f9SJohannes Berg goto out;
3157cf961e16SLiad Kaufman }
31589f9af3d7SLiad Kaufman
3159cf961e16SLiad Kaufman IWL_DEBUG_TX_QUEUES(mvm,
3160cf961e16SLiad Kaufman "AGG for tid %d will be on queue #%d\n",
3161cf961e16SLiad Kaufman tid, txq_id);
3162cf961e16SLiad Kaufman
3163e705c121SKalle Valo tid_data = &mvmsta->tid_data[tid];
3164e705c121SKalle Valo tid_data->ssn = IEEE80211_SEQ_TO_SN(tid_data->seq_number);
3165e705c121SKalle Valo tid_data->txq_id = txq_id;
3166e705c121SKalle Valo *ssn = tid_data->ssn;
3167e705c121SKalle Valo
3168e705c121SKalle Valo IWL_DEBUG_TX_QUEUES(mvm,
3169e705c121SKalle Valo "Start AGG: sta %d tid %d queue %d - ssn = %d, next_recl = %d\n",
3170c8ee33e1SGregory Greenman mvmsta->deflink.sta_id, tid, txq_id,
3171c8ee33e1SGregory Greenman tid_data->ssn,
3172e705c121SKalle Valo tid_data->next_reclaimed);
3173e705c121SKalle Valo
3174dd32162dSLiad Kaufman /*
31752f7a3863SLuca Coelho * In 22000 HW, the next_reclaimed index is only 8 bit, so we'll need
3176dd32162dSLiad Kaufman * to align the wrap around of ssn so we compare relevant values.
3177dd32162dSLiad Kaufman */
3178dd32162dSLiad Kaufman normalized_ssn = tid_data->ssn;
3179286ca8ebSLuca Coelho if (mvm->trans->trans_cfg->gen2)
3180dd32162dSLiad Kaufman normalized_ssn &= 0xff;
3181dd32162dSLiad Kaufman
3182dd32162dSLiad Kaufman if (normalized_ssn == tid_data->next_reclaimed) {
3183e705c121SKalle Valo tid_data->state = IWL_AGG_STARTING;
31842ce113deSJohannes Berg ret = IEEE80211_AMPDU_TX_START_IMMEDIATE;
3185e705c121SKalle Valo } else {
3186e705c121SKalle Valo tid_data->state = IWL_EMPTYING_HW_QUEUE_ADDBA;
31877e0ca723SMordechay Goodstein ret = IEEE80211_AMPDU_TX_START_DELAY_ADDBA;
31882ce113deSJohannes Berg }
3189e705c121SKalle Valo
31909f9af3d7SLiad Kaufman out:
3191e705c121SKalle Valo spin_unlock_bh(&mvmsta->lock);
3192e705c121SKalle Valo
3193e705c121SKalle Valo return ret;
3194e705c121SKalle Valo }
3195e705c121SKalle Valo
iwl_mvm_sta_tx_agg_oper(struct iwl_mvm * mvm,struct ieee80211_vif * vif,struct ieee80211_sta * sta,u16 tid,u16 buf_size,bool amsdu)3196e705c121SKalle Valo int iwl_mvm_sta_tx_agg_oper(struct iwl_mvm *mvm, struct ieee80211_vif *vif,
3197514c3069SLuca Coelho struct ieee80211_sta *sta, u16 tid, u16 buf_size,
3198bb81bb68SEmmanuel Grumbach bool amsdu)
3199e705c121SKalle Valo {
3200e705c121SKalle Valo struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(sta);
3201e705c121SKalle Valo struct iwl_mvm_tid_data *tid_data = &mvmsta->tid_data[tid];
3202e705c121SKalle Valo unsigned int wdg_timeout =
3203e705c121SKalle Valo iwl_mvm_get_wd_timeout(mvm, vif, sta->tdls, false);
3204eea76c36SEmmanuel Grumbach int queue, ret;
3205cf961e16SLiad Kaufman bool alloc_queue = true;
32069f9af3d7SLiad Kaufman enum iwl_mvm_queue_status queue_status;
3207e705c121SKalle Valo u16 ssn;
3208e705c121SKalle Valo
3209eea76c36SEmmanuel Grumbach struct iwl_trans_txq_scd_cfg cfg = {
3210c8ee33e1SGregory Greenman .sta_id = mvmsta->deflink.sta_id,
3211eea76c36SEmmanuel Grumbach .tid = tid,
3212eea76c36SEmmanuel Grumbach .frame_limit = buf_size,
3213eea76c36SEmmanuel Grumbach .aggregate = true,
3214eea76c36SEmmanuel Grumbach };
3215eea76c36SEmmanuel Grumbach
3216ecaf71deSGregory Greenman /*
3217ecaf71deSGregory Greenman * When FW supports TLC_OFFLOAD, it also implements Tx aggregation
3218ecaf71deSGregory Greenman * manager, so this function should never be called in this case.
3219ecaf71deSGregory Greenman */
32204243edb4SEmmanuel Grumbach if (WARN_ON_ONCE(iwl_mvm_has_tlc_offload(mvm)))
3221ecaf71deSGregory Greenman return -EINVAL;
3222ecaf71deSGregory Greenman
3223e705c121SKalle Valo BUILD_BUG_ON((sizeof(mvmsta->agg_tids) * BITS_PER_BYTE)
3224e705c121SKalle Valo != IWL_MAX_TID_COUNT);
3225e705c121SKalle Valo
3226e705c121SKalle Valo spin_lock_bh(&mvmsta->lock);
3227e705c121SKalle Valo ssn = tid_data->ssn;
3228e705c121SKalle Valo queue = tid_data->txq_id;
3229e705c121SKalle Valo tid_data->state = IWL_AGG_ON;
3230e705c121SKalle Valo mvmsta->agg_tids |= BIT(tid);
3231e705c121SKalle Valo tid_data->ssn = 0xffff;
3232bb81bb68SEmmanuel Grumbach tid_data->amsdu_in_ampdu_allowed = amsdu;
3233e705c121SKalle Valo spin_unlock_bh(&mvmsta->lock);
3234e705c121SKalle Valo
323534e10860SSara Sharon if (iwl_mvm_has_new_tx_api(mvm)) {
323634e10860SSara Sharon /*
32370ec9257bSSara Sharon * If there is no queue for this tid, iwl_mvm_sta_tx_agg_start()
32380ec9257bSSara Sharon * would have failed, so if we are here there is no need to
32390ec9257bSSara Sharon * allocate a queue.
32400ec9257bSSara Sharon * However, if aggregation size is different than the default
32410ec9257bSSara Sharon * size, the scheduler should be reconfigured.
32420ec9257bSSara Sharon * We cannot do this with the new TX API, so return unsupported
32430ec9257bSSara Sharon * for now, until it will be offloaded to firmware..
32440ec9257bSSara Sharon * Note that if SCD default value changes - this condition
32450ec9257bSSara Sharon * should be updated as well.
324634e10860SSara Sharon */
32470ec9257bSSara Sharon if (buf_size < IWL_FRAME_LIMIT)
324834e10860SSara Sharon return -ENOTSUPP;
324934e10860SSara Sharon
325034e10860SSara Sharon ret = iwl_mvm_sta_tx_agg(mvm, sta, tid, queue, true);
325134e10860SSara Sharon if (ret)
325234e10860SSara Sharon return -EIO;
325334e10860SSara Sharon goto out;
325434e10860SSara Sharon }
325534e10860SSara Sharon
3256eea76c36SEmmanuel Grumbach cfg.fifo = iwl_mvm_ac_to_tx_fifo[tid_to_mac80211_ac[tid]];
3257e705c121SKalle Valo
32589f9af3d7SLiad Kaufman queue_status = mvm->queue_info[queue].status;
32599f9af3d7SLiad Kaufman
3260cf961e16SLiad Kaufman /* Maybe there is no need to even alloc a queue... */
3261cf961e16SLiad Kaufman if (mvm->queue_info[queue].status == IWL_MVM_QUEUE_READY)
3262cf961e16SLiad Kaufman alloc_queue = false;
3263cf961e16SLiad Kaufman
3264cf961e16SLiad Kaufman /*
3265cf961e16SLiad Kaufman * Only reconfig the SCD for the queue if the window size has
3266cf961e16SLiad Kaufman * changed from current (become smaller)
3267cf961e16SLiad Kaufman */
32680ec9257bSSara Sharon if (!alloc_queue && buf_size < IWL_FRAME_LIMIT) {
3269cf961e16SLiad Kaufman /*
3270cf961e16SLiad Kaufman * If reconfiguring an existing queue, it first must be
3271cf961e16SLiad Kaufman * drained
3272cf961e16SLiad Kaufman */
3273a1a57877SSara Sharon ret = iwl_trans_wait_tx_queues_empty(mvm->trans,
3274cf961e16SLiad Kaufman BIT(queue));
3275cf961e16SLiad Kaufman if (ret) {
3276cf961e16SLiad Kaufman IWL_ERR(mvm,
3277cf961e16SLiad Kaufman "Error draining queue before reconfig\n");
3278cf961e16SLiad Kaufman return ret;
3279cf961e16SLiad Kaufman }
3280cf961e16SLiad Kaufman
3281cf961e16SLiad Kaufman ret = iwl_mvm_reconfig_scd(mvm, queue, cfg.fifo,
3282c8ee33e1SGregory Greenman mvmsta->deflink.sta_id, tid,
3283cf961e16SLiad Kaufman buf_size, ssn);
3284cf961e16SLiad Kaufman if (ret) {
3285cf961e16SLiad Kaufman IWL_ERR(mvm,
3286cf961e16SLiad Kaufman "Error reconfiguring TXQ #%d\n", queue);
3287cf961e16SLiad Kaufman return ret;
3288cf961e16SLiad Kaufman }
3289cf961e16SLiad Kaufman }
3290cf961e16SLiad Kaufman
3291cf961e16SLiad Kaufman if (alloc_queue)
3292cfbc6c4cSSara Sharon iwl_mvm_enable_txq(mvm, sta, queue, ssn,
3293cf961e16SLiad Kaufman &cfg, wdg_timeout);
3294e705c121SKalle Valo
32959f9af3d7SLiad Kaufman /* Send ADD_STA command to enable aggs only if the queue isn't shared */
32969f9af3d7SLiad Kaufman if (queue_status != IWL_MVM_QUEUE_SHARED) {
3297e705c121SKalle Valo ret = iwl_mvm_sta_tx_agg(mvm, sta, tid, queue, true);
3298e705c121SKalle Valo if (ret)
3299e705c121SKalle Valo return -EIO;
33009f9af3d7SLiad Kaufman }
3301e705c121SKalle Valo
3302e705c121SKalle Valo /* No need to mark as reserved */
3303cf961e16SLiad Kaufman mvm->queue_info[queue].status = IWL_MVM_QUEUE_READY;
3304e705c121SKalle Valo
330534e10860SSara Sharon out:
3306e705c121SKalle Valo /*
3307e705c121SKalle Valo * Even though in theory the peer could have different
3308e705c121SKalle Valo * aggregation reorder buffer sizes for different sessions,
3309e705c121SKalle Valo * our ucode doesn't allow for that and has a global limit
3310e705c121SKalle Valo * for each station. Therefore, use the minimum of all the
3311e705c121SKalle Valo * aggregation sessions and our default value.
3312e705c121SKalle Valo */
331359c2d94bSGregory Greenman mvmsta->deflink.lq_sta.rs_drv.pers.max_agg_bufsize =
331459c2d94bSGregory Greenman min(mvmsta->deflink.lq_sta.rs_drv.pers.max_agg_bufsize,
331559c2d94bSGregory Greenman buf_size);
3316c8ee33e1SGregory Greenman mvmsta->deflink.lq_sta.rs_drv.lq.agg_frame_cnt_limit =
331759c2d94bSGregory Greenman mvmsta->deflink.lq_sta.rs_drv.pers.max_agg_bufsize;
3318e705c121SKalle Valo
3319e705c121SKalle Valo IWL_DEBUG_HT(mvm, "Tx aggregation enabled on ra = %pM tid = %d\n",
3320e705c121SKalle Valo sta->addr, tid);
3321e705c121SKalle Valo
3322c8ee33e1SGregory Greenman return iwl_mvm_send_lq_cmd(mvm, &mvmsta->deflink.lq_sta.rs_drv.lq);
3323e705c121SKalle Valo }
3324e705c121SKalle Valo
iwl_mvm_unreserve_agg_queue(struct iwl_mvm * mvm,struct iwl_mvm_sta * mvmsta,struct iwl_mvm_tid_data * tid_data)332534e10860SSara Sharon static void iwl_mvm_unreserve_agg_queue(struct iwl_mvm *mvm,
332634e10860SSara Sharon struct iwl_mvm_sta *mvmsta,
33274b387906SAvraham Stern struct iwl_mvm_tid_data *tid_data)
332834e10860SSara Sharon {
33294b387906SAvraham Stern u16 txq_id = tid_data->txq_id;
33304b387906SAvraham Stern
3331f3f240f9SJohannes Berg lockdep_assert_held(&mvm->mutex);
3332f3f240f9SJohannes Berg
333334e10860SSara Sharon if (iwl_mvm_has_new_tx_api(mvm))
333434e10860SSara Sharon return;
333534e10860SSara Sharon
333634e10860SSara Sharon /*
333734e10860SSara Sharon * The TXQ is marked as reserved only if no traffic came through yet
333834e10860SSara Sharon * This means no traffic has been sent on this TID (agg'd or not), so
333934e10860SSara Sharon * we no longer have use for the queue. Since it hasn't even been
334034e10860SSara Sharon * allocated through iwl_mvm_enable_txq, so we can just mark it back as
334134e10860SSara Sharon * free.
334234e10860SSara Sharon */
33434b387906SAvraham Stern if (mvm->queue_info[txq_id].status == IWL_MVM_QUEUE_RESERVED) {
334434e10860SSara Sharon mvm->queue_info[txq_id].status = IWL_MVM_QUEUE_FREE;
33454b387906SAvraham Stern tid_data->txq_id = IWL_MVM_INVALID_QUEUE;
33464b387906SAvraham Stern }
334734e10860SSara Sharon }
334834e10860SSara Sharon
iwl_mvm_sta_tx_agg_stop(struct iwl_mvm * mvm,struct ieee80211_vif * vif,struct ieee80211_sta * sta,u16 tid)3349e705c121SKalle Valo int iwl_mvm_sta_tx_agg_stop(struct iwl_mvm *mvm, struct ieee80211_vif *vif,
3350e705c121SKalle Valo struct ieee80211_sta *sta, u16 tid)
3351e705c121SKalle Valo {
3352e705c121SKalle Valo struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(sta);
3353e705c121SKalle Valo struct iwl_mvm_tid_data *tid_data = &mvmsta->tid_data[tid];
3354e705c121SKalle Valo u16 txq_id;
3355e705c121SKalle Valo int err;
3356e705c121SKalle Valo
3357e705c121SKalle Valo /*
3358e705c121SKalle Valo * If mac80211 is cleaning its state, then say that we finished since
3359e705c121SKalle Valo * our state has been cleared anyway.
3360e705c121SKalle Valo */
3361e705c121SKalle Valo if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status)) {
3362e705c121SKalle Valo ieee80211_stop_tx_ba_cb_irqsafe(vif, sta->addr, tid);
3363e705c121SKalle Valo return 0;
3364e705c121SKalle Valo }
3365e705c121SKalle Valo
3366e705c121SKalle Valo spin_lock_bh(&mvmsta->lock);
3367e705c121SKalle Valo
3368e705c121SKalle Valo txq_id = tid_data->txq_id;
3369e705c121SKalle Valo
3370e705c121SKalle Valo IWL_DEBUG_TX_QUEUES(mvm, "Stop AGG: sta %d tid %d q %d state %d\n",
3371c8ee33e1SGregory Greenman mvmsta->deflink.sta_id, tid, txq_id,
3372c8ee33e1SGregory Greenman tid_data->state);
3373e705c121SKalle Valo
3374e705c121SKalle Valo mvmsta->agg_tids &= ~BIT(tid);
3375e705c121SKalle Valo
33764b387906SAvraham Stern iwl_mvm_unreserve_agg_queue(mvm, mvmsta, tid_data);
3377e705c121SKalle Valo
3378e705c121SKalle Valo switch (tid_data->state) {
3379e705c121SKalle Valo case IWL_AGG_ON:
3380e705c121SKalle Valo tid_data->ssn = IEEE80211_SEQ_TO_SN(tid_data->seq_number);
3381e705c121SKalle Valo
3382e705c121SKalle Valo IWL_DEBUG_TX_QUEUES(mvm,
3383e705c121SKalle Valo "ssn = %d, next_recl = %d\n",
3384e705c121SKalle Valo tid_data->ssn, tid_data->next_reclaimed);
3385e705c121SKalle Valo
3386e705c121SKalle Valo tid_data->ssn = 0xffff;
3387e705c121SKalle Valo tid_data->state = IWL_AGG_OFF;
3388e705c121SKalle Valo spin_unlock_bh(&mvmsta->lock);
3389e705c121SKalle Valo
3390e705c121SKalle Valo ieee80211_stop_tx_ba_cb_irqsafe(vif, sta->addr, tid);
3391e705c121SKalle Valo
3392e705c121SKalle Valo iwl_mvm_sta_tx_agg(mvm, sta, tid, txq_id, false);
3393e705c121SKalle Valo return 0;
3394e705c121SKalle Valo case IWL_AGG_STARTING:
3395e705c121SKalle Valo case IWL_EMPTYING_HW_QUEUE_ADDBA:
3396e705c121SKalle Valo /*
3397e705c121SKalle Valo * The agg session has been stopped before it was set up. This
3398e705c121SKalle Valo * can happen when the AddBA timer times out for example.
3399e705c121SKalle Valo */
3400e705c121SKalle Valo
3401e705c121SKalle Valo /* No barriers since we are under mutex */
3402e705c121SKalle Valo lockdep_assert_held(&mvm->mutex);
3403e705c121SKalle Valo
3404e705c121SKalle Valo ieee80211_stop_tx_ba_cb_irqsafe(vif, sta->addr, tid);
3405e705c121SKalle Valo tid_data->state = IWL_AGG_OFF;
3406e705c121SKalle Valo err = 0;
3407e705c121SKalle Valo break;
3408e705c121SKalle Valo default:
3409e705c121SKalle Valo IWL_ERR(mvm,
3410e705c121SKalle Valo "Stopping AGG while state not ON or starting for %d on %d (%d)\n",
3411c8ee33e1SGregory Greenman mvmsta->deflink.sta_id, tid, tid_data->state);
3412e705c121SKalle Valo IWL_ERR(mvm,
3413e705c121SKalle Valo "\ttid_data->txq_id = %d\n", tid_data->txq_id);
3414e705c121SKalle Valo err = -EINVAL;
3415e705c121SKalle Valo }
3416e705c121SKalle Valo
3417e705c121SKalle Valo spin_unlock_bh(&mvmsta->lock);
3418e705c121SKalle Valo
3419e705c121SKalle Valo return err;
3420e705c121SKalle Valo }
3421e705c121SKalle Valo
iwl_mvm_sta_tx_agg_flush(struct iwl_mvm * mvm,struct ieee80211_vif * vif,struct ieee80211_sta * sta,u16 tid)3422e705c121SKalle Valo int iwl_mvm_sta_tx_agg_flush(struct iwl_mvm *mvm, struct ieee80211_vif *vif,
3423e705c121SKalle Valo struct ieee80211_sta *sta, u16 tid)
3424e705c121SKalle Valo {
3425e705c121SKalle Valo struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(sta);
3426e705c121SKalle Valo struct iwl_mvm_tid_data *tid_data = &mvmsta->tid_data[tid];
3427e705c121SKalle Valo u16 txq_id;
3428e705c121SKalle Valo enum iwl_mvm_agg_state old_state;
3429e705c121SKalle Valo
3430e705c121SKalle Valo /*
3431e705c121SKalle Valo * First set the agg state to OFF to avoid calling
3432e705c121SKalle Valo * ieee80211_stop_tx_ba_cb in iwl_mvm_check_ratid_empty.
3433e705c121SKalle Valo */
3434e705c121SKalle Valo spin_lock_bh(&mvmsta->lock);
3435e705c121SKalle Valo txq_id = tid_data->txq_id;
3436e705c121SKalle Valo IWL_DEBUG_TX_QUEUES(mvm, "Flush AGG: sta %d tid %d q %d state %d\n",
3437c8ee33e1SGregory Greenman mvmsta->deflink.sta_id, tid, txq_id,
3438c8ee33e1SGregory Greenman tid_data->state);
3439e705c121SKalle Valo old_state = tid_data->state;
3440e705c121SKalle Valo tid_data->state = IWL_AGG_OFF;
3441e705c121SKalle Valo mvmsta->agg_tids &= ~BIT(tid);
3442e705c121SKalle Valo spin_unlock_bh(&mvmsta->lock);
3443e705c121SKalle Valo
34444b387906SAvraham Stern iwl_mvm_unreserve_agg_queue(mvm, mvmsta, tid_data);
3445e705c121SKalle Valo
3446e705c121SKalle Valo if (old_state >= IWL_AGG_ON) {
3447e705c121SKalle Valo iwl_mvm_drain_sta(mvm, mvmsta, true);
3448d167e81aSMordechai Goodstein
3449d167e81aSMordechai Goodstein if (iwl_mvm_has_new_tx_api(mvm)) {
3450c8ee33e1SGregory Greenman if (iwl_mvm_flush_sta_tids(mvm, mvmsta->deflink.sta_id,
3451d4e3a341SMordechay Goodstein BIT(tid)))
3452d167e81aSMordechai Goodstein IWL_ERR(mvm, "Couldn't flush the AGG queue\n");
3453d167e81aSMordechai Goodstein iwl_trans_wait_txq_empty(mvm->trans, txq_id);
3454d167e81aSMordechai Goodstein } else {
3455d4e3a341SMordechay Goodstein if (iwl_mvm_flush_tx_path(mvm, BIT(txq_id)))
3456e705c121SKalle Valo IWL_ERR(mvm, "Couldn't flush the AGG queue\n");
34570b90964aSSara Sharon iwl_trans_wait_tx_queues_empty(mvm->trans, BIT(txq_id));
3458d167e81aSMordechai Goodstein }
3459d6d517b7SSara Sharon
3460e705c121SKalle Valo iwl_mvm_drain_sta(mvm, mvmsta, false);
3461e705c121SKalle Valo
3462e705c121SKalle Valo iwl_mvm_sta_tx_agg(mvm, sta, tid, txq_id, false);
3463e705c121SKalle Valo }
3464e705c121SKalle Valo
3465e705c121SKalle Valo return 0;
3466e705c121SKalle Valo }
3467e705c121SKalle Valo
iwl_mvm_set_fw_key_idx(struct iwl_mvm * mvm)3468e705c121SKalle Valo static int iwl_mvm_set_fw_key_idx(struct iwl_mvm *mvm)
3469e705c121SKalle Valo {
3470e705c121SKalle Valo int i, max = -1, max_offs = -1;
3471e705c121SKalle Valo
3472e705c121SKalle Valo lockdep_assert_held(&mvm->mutex);
3473e705c121SKalle Valo
3474e705c121SKalle Valo /* Pick the unused key offset with the highest 'deleted'
3475e705c121SKalle Valo * counter. Every time a key is deleted, all the counters
3476e705c121SKalle Valo * are incremented and the one that was just deleted is
3477e705c121SKalle Valo * reset to zero. Thus, the highest counter is the one
3478e705c121SKalle Valo * that was deleted longest ago. Pick that one.
3479e705c121SKalle Valo */
3480e705c121SKalle Valo for (i = 0; i < STA_KEY_MAX_NUM; i++) {
3481e705c121SKalle Valo if (test_bit(i, mvm->fw_key_table))
3482e705c121SKalle Valo continue;
3483e705c121SKalle Valo if (mvm->fw_key_deleted[i] > max) {
3484e705c121SKalle Valo max = mvm->fw_key_deleted[i];
3485e705c121SKalle Valo max_offs = i;
3486e705c121SKalle Valo }
3487e705c121SKalle Valo }
3488e705c121SKalle Valo
3489e705c121SKalle Valo if (max_offs < 0)
3490e705c121SKalle Valo return STA_KEY_IDX_INVALID;
3491e705c121SKalle Valo
3492e705c121SKalle Valo return max_offs;
3493e705c121SKalle Valo }
3494e705c121SKalle Valo
iwl_mvm_get_key_sta(struct iwl_mvm * mvm,struct ieee80211_vif * vif,struct ieee80211_sta * sta)34955f7a1847SJohannes Berg static struct iwl_mvm_sta *iwl_mvm_get_key_sta(struct iwl_mvm *mvm,
34964615fd15SEmmanuel Grumbach struct ieee80211_vif *vif,
3497e705c121SKalle Valo struct ieee80211_sta *sta)
3498e705c121SKalle Valo {
3499e705c121SKalle Valo struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
3500e705c121SKalle Valo
35015f7a1847SJohannes Berg if (sta)
35025f7a1847SJohannes Berg return iwl_mvm_sta_from_mac80211(sta);
3503e705c121SKalle Valo
3504e705c121SKalle Valo /*
3505e705c121SKalle Valo * The device expects GTKs for station interfaces to be
3506e705c121SKalle Valo * installed as GTKs for the AP station. If we have no
3507e705c121SKalle Valo * station ID, then use AP's station ID.
3508e705c121SKalle Valo */
3509e705c121SKalle Valo if (vif->type == NL80211_IFTYPE_STATION &&
3510650cadb7SGregory Greenman mvmvif->deflink.ap_sta_id != IWL_MVM_INVALID_STA) {
3511650cadb7SGregory Greenman u8 sta_id = mvmvif->deflink.ap_sta_id;
35124615fd15SEmmanuel Grumbach
35137d6a1ab6SEmmanuel Grumbach sta = rcu_dereference_check(mvm->fw_id_to_mac_id[sta_id],
35147d6a1ab6SEmmanuel Grumbach lockdep_is_held(&mvm->mutex));
35157d6a1ab6SEmmanuel Grumbach
35164615fd15SEmmanuel Grumbach /*
35174615fd15SEmmanuel Grumbach * It is possible that the 'sta' parameter is NULL,
35184615fd15SEmmanuel Grumbach * for example when a GTK is removed - the sta_id will then
35194615fd15SEmmanuel Grumbach * be the AP ID, and no station was passed by mac80211.
35204615fd15SEmmanuel Grumbach */
35217d6a1ab6SEmmanuel Grumbach if (IS_ERR_OR_NULL(sta))
35227d6a1ab6SEmmanuel Grumbach return NULL;
35237d6a1ab6SEmmanuel Grumbach
35247d6a1ab6SEmmanuel Grumbach return iwl_mvm_sta_from_mac80211(sta);
35254615fd15SEmmanuel Grumbach }
3526e705c121SKalle Valo
35275f7a1847SJohannes Berg return NULL;
3528e705c121SKalle Valo }
3529e705c121SKalle Valo
iwl_mvm_pn_cmp(const u8 * pn1,const u8 * pn2,int len)3530a6dfbd04SJohannes Berg static int iwl_mvm_pn_cmp(const u8 *pn1, const u8 *pn2, int len)
3531a6dfbd04SJohannes Berg {
3532a6dfbd04SJohannes Berg int i;
3533a6dfbd04SJohannes Berg
3534a6dfbd04SJohannes Berg for (i = len - 1; i >= 0; i--) {
3535a6dfbd04SJohannes Berg if (pn1[i] > pn2[i])
3536a6dfbd04SJohannes Berg return 1;
3537a6dfbd04SJohannes Berg if (pn1[i] < pn2[i])
3538a6dfbd04SJohannes Berg return -1;
3539a6dfbd04SJohannes Berg }
3540a6dfbd04SJohannes Berg
3541a6dfbd04SJohannes Berg return 0;
3542a6dfbd04SJohannes Berg }
3543a6dfbd04SJohannes Berg
iwl_mvm_send_sta_key(struct iwl_mvm * mvm,u32 sta_id,struct ieee80211_key_conf * key,bool mcast,u32 tkip_iv32,u16 * tkip_p1k,u32 cmd_flags,u8 key_offset,bool mfp)3544e705c121SKalle Valo static int iwl_mvm_send_sta_key(struct iwl_mvm *mvm,
354585aeb58cSDavid Spinadel u32 sta_id,
354645c458b4SSara Sharon struct ieee80211_key_conf *key, bool mcast,
35474615fd15SEmmanuel Grumbach u32 tkip_iv32, u16 *tkip_p1k, u32 cmd_flags,
35484883145aSEmmanuel Grumbach u8 key_offset, bool mfp)
3549e705c121SKalle Valo {
355045c458b4SSara Sharon union {
355145c458b4SSara Sharon struct iwl_mvm_add_sta_key_cmd_v1 cmd_v1;
355245c458b4SSara Sharon struct iwl_mvm_add_sta_key_cmd cmd;
355345c458b4SSara Sharon } u = {};
3554e705c121SKalle Valo __le16 key_flags;
3555e705c121SKalle Valo int ret;
3556e705c121SKalle Valo u32 status;
3557e705c121SKalle Valo u16 keyidx;
355845c458b4SSara Sharon u64 pn = 0;
355945c458b4SSara Sharon int i, size;
356045c458b4SSara Sharon bool new_api = fw_has_api(&mvm->fw->ucode_capa,
356145c458b4SSara Sharon IWL_UCODE_TLV_API_TKIP_MIC_KEYS);
3562971cbe50SJohannes Berg int api_ver = iwl_fw_lookup_cmd_ver(mvm->fw, ADD_STA_KEY,
3563199d895fSJohannes Berg new_api ? 2 : 1);
3564e705c121SKalle Valo
356585aeb58cSDavid Spinadel if (sta_id == IWL_MVM_INVALID_STA)
356685aeb58cSDavid Spinadel return -EINVAL;
356785aeb58cSDavid Spinadel
356845c458b4SSara Sharon keyidx = (key->keyidx << STA_KEY_FLG_KEYID_POS) &
3569e705c121SKalle Valo STA_KEY_FLG_KEYID_MSK;
3570e705c121SKalle Valo key_flags = cpu_to_le16(keyidx);
3571e705c121SKalle Valo key_flags |= cpu_to_le16(STA_KEY_FLG_WEP_KEY_MAP);
3572e705c121SKalle Valo
357345c458b4SSara Sharon switch (key->cipher) {
3574e705c121SKalle Valo case WLAN_CIPHER_SUITE_TKIP:
3575e705c121SKalle Valo key_flags |= cpu_to_le16(STA_KEY_FLG_TKIP);
3576199d895fSJohannes Berg if (api_ver >= 2) {
357745c458b4SSara Sharon memcpy((void *)&u.cmd.tx_mic_key,
357845c458b4SSara Sharon &key->key[NL80211_TKIP_DATA_OFFSET_TX_MIC_KEY],
357945c458b4SSara Sharon IWL_MIC_KEY_SIZE);
358045c458b4SSara Sharon
358145c458b4SSara Sharon memcpy((void *)&u.cmd.rx_mic_key,
358245c458b4SSara Sharon &key->key[NL80211_TKIP_DATA_OFFSET_RX_MIC_KEY],
358345c458b4SSara Sharon IWL_MIC_KEY_SIZE);
358445c458b4SSara Sharon pn = atomic64_read(&key->tx_pn);
358545c458b4SSara Sharon
358645c458b4SSara Sharon } else {
358745c458b4SSara Sharon u.cmd_v1.tkip_rx_tsc_byte2 = tkip_iv32;
3588e705c121SKalle Valo for (i = 0; i < 5; i++)
358945c458b4SSara Sharon u.cmd_v1.tkip_rx_ttak[i] =
359045c458b4SSara Sharon cpu_to_le16(tkip_p1k[i]);
359145c458b4SSara Sharon }
359245c458b4SSara Sharon memcpy(u.cmd.common.key, key->key, key->keylen);
3593e705c121SKalle Valo break;
3594e705c121SKalle Valo case WLAN_CIPHER_SUITE_CCMP:
3595e705c121SKalle Valo key_flags |= cpu_to_le16(STA_KEY_FLG_CCM);
359645c458b4SSara Sharon memcpy(u.cmd.common.key, key->key, key->keylen);
3597199d895fSJohannes Berg if (api_ver >= 2)
359845c458b4SSara Sharon pn = atomic64_read(&key->tx_pn);
3599e705c121SKalle Valo break;
3600e705c121SKalle Valo case WLAN_CIPHER_SUITE_WEP104:
3601e705c121SKalle Valo key_flags |= cpu_to_le16(STA_KEY_FLG_WEP_13BYTES);
36025a2abdcaSGustavo A. R. Silva fallthrough;
3603e705c121SKalle Valo case WLAN_CIPHER_SUITE_WEP40:
3604e705c121SKalle Valo key_flags |= cpu_to_le16(STA_KEY_FLG_WEP);
360545c458b4SSara Sharon memcpy(u.cmd.common.key + 3, key->key, key->keylen);
3606e705c121SKalle Valo break;
36072a53d166SAyala Beker case WLAN_CIPHER_SUITE_GCMP_256:
36082a53d166SAyala Beker key_flags |= cpu_to_le16(STA_KEY_FLG_KEY_32BYTES);
36095a2abdcaSGustavo A. R. Silva fallthrough;
36102a53d166SAyala Beker case WLAN_CIPHER_SUITE_GCMP:
36112a53d166SAyala Beker key_flags |= cpu_to_le16(STA_KEY_FLG_GCMP);
361245c458b4SSara Sharon memcpy(u.cmd.common.key, key->key, key->keylen);
3613199d895fSJohannes Berg if (api_ver >= 2)
361445c458b4SSara Sharon pn = atomic64_read(&key->tx_pn);
36152a53d166SAyala Beker break;
3616e705c121SKalle Valo default:
3617e705c121SKalle Valo key_flags |= cpu_to_le16(STA_KEY_FLG_EXT);
361845c458b4SSara Sharon memcpy(u.cmd.common.key, key->key, key->keylen);
3619e705c121SKalle Valo }
3620e705c121SKalle Valo
3621e705c121SKalle Valo if (mcast)
3622e705c121SKalle Valo key_flags |= cpu_to_le16(STA_KEY_MULTICAST);
36234883145aSEmmanuel Grumbach if (mfp)
36244883145aSEmmanuel Grumbach key_flags |= cpu_to_le16(STA_KEY_MFP);
3625e705c121SKalle Valo
362645c458b4SSara Sharon u.cmd.common.key_offset = key_offset;
362745c458b4SSara Sharon u.cmd.common.key_flags = key_flags;
362885aeb58cSDavid Spinadel u.cmd.common.sta_id = sta_id;
362945c458b4SSara Sharon
3630a6dfbd04SJohannes Berg if (key->cipher == WLAN_CIPHER_SUITE_TKIP)
3631a6dfbd04SJohannes Berg i = 0;
3632a6dfbd04SJohannes Berg else
3633a6dfbd04SJohannes Berg i = -1;
3634a6dfbd04SJohannes Berg
3635a6dfbd04SJohannes Berg for (; i < IEEE80211_NUM_TIDS; i++) {
3636a6dfbd04SJohannes Berg struct ieee80211_key_seq seq = {};
3637a6dfbd04SJohannes Berg u8 _rx_pn[IEEE80211_MAX_PN_LEN] = {}, *rx_pn = _rx_pn;
3638a6dfbd04SJohannes Berg int rx_pn_len = 8;
3639199d895fSJohannes Berg /* there's a hole at 2/3 in FW format depending on version */
3640199d895fSJohannes Berg int hole = api_ver >= 3 ? 0 : 2;
3641a6dfbd04SJohannes Berg
3642a6dfbd04SJohannes Berg ieee80211_get_key_rx_seq(key, i, &seq);
3643a6dfbd04SJohannes Berg
3644a6dfbd04SJohannes Berg if (key->cipher == WLAN_CIPHER_SUITE_TKIP) {
3645a6dfbd04SJohannes Berg rx_pn[0] = seq.tkip.iv16;
3646a6dfbd04SJohannes Berg rx_pn[1] = seq.tkip.iv16 >> 8;
3647199d895fSJohannes Berg rx_pn[2 + hole] = seq.tkip.iv32;
3648199d895fSJohannes Berg rx_pn[3 + hole] = seq.tkip.iv32 >> 8;
3649199d895fSJohannes Berg rx_pn[4 + hole] = seq.tkip.iv32 >> 16;
3650199d895fSJohannes Berg rx_pn[5 + hole] = seq.tkip.iv32 >> 24;
3651a6dfbd04SJohannes Berg } else if (key_flags & cpu_to_le16(STA_KEY_FLG_EXT)) {
3652a6dfbd04SJohannes Berg rx_pn = seq.hw.seq;
3653a6dfbd04SJohannes Berg rx_pn_len = seq.hw.seq_len;
3654a6dfbd04SJohannes Berg } else {
3655a6dfbd04SJohannes Berg rx_pn[0] = seq.ccmp.pn[0];
3656a6dfbd04SJohannes Berg rx_pn[1] = seq.ccmp.pn[1];
3657199d895fSJohannes Berg rx_pn[2 + hole] = seq.ccmp.pn[2];
3658199d895fSJohannes Berg rx_pn[3 + hole] = seq.ccmp.pn[3];
3659199d895fSJohannes Berg rx_pn[4 + hole] = seq.ccmp.pn[4];
3660199d895fSJohannes Berg rx_pn[5 + hole] = seq.ccmp.pn[5];
3661a6dfbd04SJohannes Berg }
3662a6dfbd04SJohannes Berg
3663a6dfbd04SJohannes Berg if (iwl_mvm_pn_cmp(rx_pn, (u8 *)&u.cmd.common.rx_secur_seq_cnt,
3664a6dfbd04SJohannes Berg rx_pn_len) > 0)
3665a6dfbd04SJohannes Berg memcpy(&u.cmd.common.rx_secur_seq_cnt, rx_pn,
3666a6dfbd04SJohannes Berg rx_pn_len);
3667a6dfbd04SJohannes Berg }
3668a6dfbd04SJohannes Berg
3669199d895fSJohannes Berg if (api_ver >= 2) {
367045c458b4SSara Sharon u.cmd.transmit_seq_cnt = cpu_to_le64(pn);
367145c458b4SSara Sharon size = sizeof(u.cmd);
367245c458b4SSara Sharon } else {
367345c458b4SSara Sharon size = sizeof(u.cmd_v1);
367445c458b4SSara Sharon }
3675e705c121SKalle Valo
3676e705c121SKalle Valo status = ADD_STA_SUCCESS;
3677e705c121SKalle Valo if (cmd_flags & CMD_ASYNC)
367845c458b4SSara Sharon ret = iwl_mvm_send_cmd_pdu(mvm, ADD_STA_KEY, CMD_ASYNC, size,
367945c458b4SSara Sharon &u.cmd);
3680e705c121SKalle Valo else
368145c458b4SSara Sharon ret = iwl_mvm_send_cmd_pdu_status(mvm, ADD_STA_KEY, size,
368245c458b4SSara Sharon &u.cmd, &status);
3683e705c121SKalle Valo
3684e705c121SKalle Valo switch (status) {
3685e705c121SKalle Valo case ADD_STA_SUCCESS:
3686e705c121SKalle Valo IWL_DEBUG_WEP(mvm, "MODIFY_STA: set dynamic key passed\n");
3687e705c121SKalle Valo break;
3688e705c121SKalle Valo default:
3689e705c121SKalle Valo ret = -EIO;
3690e705c121SKalle Valo IWL_ERR(mvm, "MODIFY_STA: set dynamic key failed\n");
3691e705c121SKalle Valo break;
3692e705c121SKalle Valo }
3693e705c121SKalle Valo
3694e705c121SKalle Valo return ret;
3695e705c121SKalle Valo }
3696e705c121SKalle Valo
iwl_mvm_send_sta_igtk(struct iwl_mvm * mvm,struct ieee80211_key_conf * keyconf,u8 sta_id,bool remove_key)3697e705c121SKalle Valo static int iwl_mvm_send_sta_igtk(struct iwl_mvm *mvm,
3698e705c121SKalle Valo struct ieee80211_key_conf *keyconf,
3699e705c121SKalle Valo u8 sta_id, bool remove_key)
3700e705c121SKalle Valo {
3701e705c121SKalle Valo struct iwl_mvm_mgmt_mcast_key_cmd igtk_cmd = {};
3702e705c121SKalle Valo
3703e705c121SKalle Valo /* verify the key details match the required command's expectations */
37048e160ab8SAyala Beker if (WARN_ON((keyconf->flags & IEEE80211_KEY_FLAG_PAIRWISE) ||
3705b1fdc250SJohannes Berg (keyconf->keyidx != 4 && keyconf->keyidx != 5 &&
3706b1fdc250SJohannes Berg keyconf->keyidx != 6 && keyconf->keyidx != 7) ||
37078e160ab8SAyala Beker (keyconf->cipher != WLAN_CIPHER_SUITE_AES_CMAC &&
37088e160ab8SAyala Beker keyconf->cipher != WLAN_CIPHER_SUITE_BIP_GMAC_128 &&
37098e160ab8SAyala Beker keyconf->cipher != WLAN_CIPHER_SUITE_BIP_GMAC_256)))
37108e160ab8SAyala Beker return -EINVAL;
37118e160ab8SAyala Beker
37128e160ab8SAyala Beker if (WARN_ON(!iwl_mvm_has_new_rx_api(mvm) &&
37138e160ab8SAyala Beker keyconf->cipher != WLAN_CIPHER_SUITE_AES_CMAC))
3714e705c121SKalle Valo return -EINVAL;
3715e705c121SKalle Valo
3716e705c121SKalle Valo igtk_cmd.key_id = cpu_to_le32(keyconf->keyidx);
3717e705c121SKalle Valo igtk_cmd.sta_id = cpu_to_le32(sta_id);
3718e705c121SKalle Valo
3719e705c121SKalle Valo if (remove_key) {
3720197288d5SLuca Coelho /* This is a valid situation for IGTK */
3721197288d5SLuca Coelho if (sta_id == IWL_MVM_INVALID_STA)
3722197288d5SLuca Coelho return 0;
3723197288d5SLuca Coelho
3724e705c121SKalle Valo igtk_cmd.ctrl_flags |= cpu_to_le32(STA_KEY_NOT_VALID);
3725e705c121SKalle Valo } else {
3726e705c121SKalle Valo struct ieee80211_key_seq seq;
3727e705c121SKalle Valo const u8 *pn;
3728e705c121SKalle Valo
3729aa950524SAyala Beker switch (keyconf->cipher) {
3730aa950524SAyala Beker case WLAN_CIPHER_SUITE_AES_CMAC:
3731aa950524SAyala Beker igtk_cmd.ctrl_flags |= cpu_to_le32(STA_KEY_FLG_CCM);
3732aa950524SAyala Beker break;
37338e160ab8SAyala Beker case WLAN_CIPHER_SUITE_BIP_GMAC_128:
37348e160ab8SAyala Beker case WLAN_CIPHER_SUITE_BIP_GMAC_256:
37358e160ab8SAyala Beker igtk_cmd.ctrl_flags |= cpu_to_le32(STA_KEY_FLG_GCMP);
37368e160ab8SAyala Beker break;
3737aa950524SAyala Beker default:
3738aa950524SAyala Beker return -EINVAL;
3739aa950524SAyala Beker }
3740aa950524SAyala Beker
37418e160ab8SAyala Beker memcpy(igtk_cmd.igtk, keyconf->key, keyconf->keylen);
37428e160ab8SAyala Beker if (keyconf->cipher == WLAN_CIPHER_SUITE_BIP_GMAC_256)
37438e160ab8SAyala Beker igtk_cmd.ctrl_flags |=
37448e160ab8SAyala Beker cpu_to_le32(STA_KEY_FLG_KEY_32BYTES);
3745e705c121SKalle Valo ieee80211_get_key_rx_seq(keyconf, 0, &seq);
3746e705c121SKalle Valo pn = seq.aes_cmac.pn;
3747e705c121SKalle Valo igtk_cmd.receive_seq_cnt = cpu_to_le64(((u64) pn[5] << 0) |
3748e705c121SKalle Valo ((u64) pn[4] << 8) |
3749e705c121SKalle Valo ((u64) pn[3] << 16) |
3750e705c121SKalle Valo ((u64) pn[2] << 24) |
3751e705c121SKalle Valo ((u64) pn[1] << 32) |
3752e705c121SKalle Valo ((u64) pn[0] << 40));
3753e705c121SKalle Valo }
3754e705c121SKalle Valo
3755b1fdc250SJohannes Berg IWL_DEBUG_INFO(mvm, "%s %sIGTK (%d) for sta %u\n",
3756e705c121SKalle Valo remove_key ? "removing" : "installing",
3757b1fdc250SJohannes Berg keyconf->keyidx >= 6 ? "B" : "",
3758b1fdc250SJohannes Berg keyconf->keyidx, igtk_cmd.sta_id);
3759e705c121SKalle Valo
37608e160ab8SAyala Beker if (!iwl_mvm_has_new_rx_api(mvm)) {
37618e160ab8SAyala Beker struct iwl_mvm_mgmt_mcast_key_cmd_v1 igtk_cmd_v1 = {
37628e160ab8SAyala Beker .ctrl_flags = igtk_cmd.ctrl_flags,
37638e160ab8SAyala Beker .key_id = igtk_cmd.key_id,
37648e160ab8SAyala Beker .sta_id = igtk_cmd.sta_id,
37658e160ab8SAyala Beker .receive_seq_cnt = igtk_cmd.receive_seq_cnt
37668e160ab8SAyala Beker };
37678e160ab8SAyala Beker
37688e160ab8SAyala Beker memcpy(igtk_cmd_v1.igtk, igtk_cmd.igtk,
37698e160ab8SAyala Beker ARRAY_SIZE(igtk_cmd_v1.igtk));
37708e160ab8SAyala Beker return iwl_mvm_send_cmd_pdu(mvm, MGMT_MCAST_KEY, 0,
37718e160ab8SAyala Beker sizeof(igtk_cmd_v1), &igtk_cmd_v1);
37728e160ab8SAyala Beker }
3773e705c121SKalle Valo return iwl_mvm_send_cmd_pdu(mvm, MGMT_MCAST_KEY, 0,
3774e705c121SKalle Valo sizeof(igtk_cmd), &igtk_cmd);
3775e705c121SKalle Valo }
3776e705c121SKalle Valo
3777e705c121SKalle Valo
iwl_mvm_get_mac_addr(struct iwl_mvm * mvm,struct ieee80211_vif * vif,struct ieee80211_sta * sta)3778e705c121SKalle Valo static inline u8 *iwl_mvm_get_mac_addr(struct iwl_mvm *mvm,
3779e705c121SKalle Valo struct ieee80211_vif *vif,
3780e705c121SKalle Valo struct ieee80211_sta *sta)
3781e705c121SKalle Valo {
3782e705c121SKalle Valo struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
3783e705c121SKalle Valo
3784e705c121SKalle Valo if (sta)
3785e705c121SKalle Valo return sta->addr;
3786e705c121SKalle Valo
3787e705c121SKalle Valo if (vif->type == NL80211_IFTYPE_STATION &&
3788650cadb7SGregory Greenman mvmvif->deflink.ap_sta_id != IWL_MVM_INVALID_STA) {
3789650cadb7SGregory Greenman u8 sta_id = mvmvif->deflink.ap_sta_id;
3790e705c121SKalle Valo sta = rcu_dereference_protected(mvm->fw_id_to_mac_id[sta_id],
3791e705c121SKalle Valo lockdep_is_held(&mvm->mutex));
379268182662SGregory Greenman if (WARN_ON_ONCE(IS_ERR_OR_NULL(sta)))
379368182662SGregory Greenman return NULL;
379468182662SGregory Greenman
3795e705c121SKalle Valo return sta->addr;
3796e705c121SKalle Valo }
3797e705c121SKalle Valo
3798e705c121SKalle Valo
3799e705c121SKalle Valo return NULL;
3800e705c121SKalle Valo }
3801e705c121SKalle Valo
__iwl_mvm_set_sta_key(struct iwl_mvm * mvm,struct ieee80211_vif * vif,struct ieee80211_sta * sta,struct ieee80211_key_conf * keyconf,u8 key_offset,bool mcast)3802e705c121SKalle Valo static int __iwl_mvm_set_sta_key(struct iwl_mvm *mvm,
3803e705c121SKalle Valo struct ieee80211_vif *vif,
3804e705c121SKalle Valo struct ieee80211_sta *sta,
3805e705c121SKalle Valo struct ieee80211_key_conf *keyconf,
38064615fd15SEmmanuel Grumbach u8 key_offset,
3807e705c121SKalle Valo bool mcast)
3808e705c121SKalle Valo {
3809e705c121SKalle Valo const u8 *addr;
3810e705c121SKalle Valo struct ieee80211_key_seq seq;
3811e705c121SKalle Valo u16 p1k[5];
381285aeb58cSDavid Spinadel u32 sta_id;
38134883145aSEmmanuel Grumbach bool mfp = false;
381485aeb58cSDavid Spinadel
381585aeb58cSDavid Spinadel if (sta) {
381685aeb58cSDavid Spinadel struct iwl_mvm_sta *mvm_sta = iwl_mvm_sta_from_mac80211(sta);
381785aeb58cSDavid Spinadel
3818c8ee33e1SGregory Greenman sta_id = mvm_sta->deflink.sta_id;
38194883145aSEmmanuel Grumbach mfp = sta->mfp;
382085aeb58cSDavid Spinadel } else if (vif->type == NL80211_IFTYPE_AP &&
382185aeb58cSDavid Spinadel !(keyconf->flags & IEEE80211_KEY_FLAG_PAIRWISE)) {
382285aeb58cSDavid Spinadel struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
382385aeb58cSDavid Spinadel
3824650cadb7SGregory Greenman sta_id = mvmvif->deflink.mcast_sta.sta_id;
382585aeb58cSDavid Spinadel } else {
382685aeb58cSDavid Spinadel IWL_ERR(mvm, "Failed to find station id\n");
382785aeb58cSDavid Spinadel return -EINVAL;
382885aeb58cSDavid Spinadel }
3829e705c121SKalle Valo
383095a62c33SJohannes Berg if (keyconf->cipher == WLAN_CIPHER_SUITE_TKIP) {
3831e705c121SKalle Valo addr = iwl_mvm_get_mac_addr(mvm, vif, sta);
383268182662SGregory Greenman if (!addr) {
383368182662SGregory Greenman IWL_ERR(mvm, "Failed to find mac address\n");
383468182662SGregory Greenman return -EINVAL;
383568182662SGregory Greenman }
383668182662SGregory Greenman
3837e705c121SKalle Valo /* get phase 1 key from mac80211 */
3838e705c121SKalle Valo ieee80211_get_key_rx_seq(keyconf, 0, &seq);
3839e705c121SKalle Valo ieee80211_get_tkip_rx_p1k(keyconf, addr, seq.tkip.iv32, p1k);
384095a62c33SJohannes Berg
384195a62c33SJohannes Berg return iwl_mvm_send_sta_key(mvm, sta_id, keyconf, mcast,
38424883145aSEmmanuel Grumbach seq.tkip.iv32, p1k, 0, key_offset,
38434883145aSEmmanuel Grumbach mfp);
3844e705c121SKalle Valo }
3845e705c121SKalle Valo
384695a62c33SJohannes Berg return iwl_mvm_send_sta_key(mvm, sta_id, keyconf, mcast,
384795a62c33SJohannes Berg 0, NULL, 0, key_offset, mfp);
3848e705c121SKalle Valo }
3849e705c121SKalle Valo
iwl_mvm_set_sta_key(struct iwl_mvm * mvm,struct ieee80211_vif * vif,struct ieee80211_sta * sta,struct ieee80211_key_conf * keyconf,u8 key_offset)3850e705c121SKalle Valo int iwl_mvm_set_sta_key(struct iwl_mvm *mvm,
3851e705c121SKalle Valo struct ieee80211_vif *vif,
3852e705c121SKalle Valo struct ieee80211_sta *sta,
3853e705c121SKalle Valo struct ieee80211_key_conf *keyconf,
38544615fd15SEmmanuel Grumbach u8 key_offset)
3855e705c121SKalle Valo {
3856e705c121SKalle Valo bool mcast = !(keyconf->flags & IEEE80211_KEY_FLAG_PAIRWISE);
38575f7a1847SJohannes Berg struct iwl_mvm_sta *mvm_sta;
385885aeb58cSDavid Spinadel u8 sta_id = IWL_MVM_INVALID_STA;
3859e705c121SKalle Valo int ret;
3860e705c121SKalle Valo static const u8 __maybe_unused zero_addr[ETH_ALEN] = {0};
3861e705c121SKalle Valo
3862e705c121SKalle Valo lockdep_assert_held(&mvm->mutex);
3863e705c121SKalle Valo
386485aeb58cSDavid Spinadel if (vif->type != NL80211_IFTYPE_AP ||
386585aeb58cSDavid Spinadel keyconf->flags & IEEE80211_KEY_FLAG_PAIRWISE) {
3866e705c121SKalle Valo /* Get the station id from the mvm local station table */
38675f7a1847SJohannes Berg mvm_sta = iwl_mvm_get_key_sta(mvm, vif, sta);
38685f7a1847SJohannes Berg if (!mvm_sta) {
38695f7a1847SJohannes Berg IWL_ERR(mvm, "Failed to find station\n");
3870e705c121SKalle Valo return -EINVAL;
3871e705c121SKalle Valo }
3872c8ee33e1SGregory Greenman sta_id = mvm_sta->deflink.sta_id;
3873e705c121SKalle Valo
3874e705c121SKalle Valo /*
3875e705c121SKalle Valo * It is possible that the 'sta' parameter is NULL, and thus
387685aeb58cSDavid Spinadel * there is a need to retrieve the sta from the local station
387785aeb58cSDavid Spinadel * table.
3878e705c121SKalle Valo */
3879e705c121SKalle Valo if (!sta) {
388085aeb58cSDavid Spinadel sta = rcu_dereference_protected(
388185aeb58cSDavid Spinadel mvm->fw_id_to_mac_id[sta_id],
3882e705c121SKalle Valo lockdep_is_held(&mvm->mutex));
3883e705c121SKalle Valo if (IS_ERR_OR_NULL(sta)) {
3884e705c121SKalle Valo IWL_ERR(mvm, "Invalid station id\n");
3885e705c121SKalle Valo return -EINVAL;
3886e705c121SKalle Valo }
3887e705c121SKalle Valo }
3888e705c121SKalle Valo
3889e705c121SKalle Valo if (WARN_ON_ONCE(iwl_mvm_sta_from_mac80211(sta)->vif != vif))
3890e705c121SKalle Valo return -EINVAL;
3891e829b17cSBeni Lev } else {
3892e829b17cSBeni Lev struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
3893e829b17cSBeni Lev
3894650cadb7SGregory Greenman sta_id = mvmvif->deflink.mcast_sta.sta_id;
3895e829b17cSBeni Lev }
3896e829b17cSBeni Lev
3897e829b17cSBeni Lev if (keyconf->cipher == WLAN_CIPHER_SUITE_AES_CMAC ||
3898e829b17cSBeni Lev keyconf->cipher == WLAN_CIPHER_SUITE_BIP_GMAC_128 ||
3899e829b17cSBeni Lev keyconf->cipher == WLAN_CIPHER_SUITE_BIP_GMAC_256) {
3900e829b17cSBeni Lev ret = iwl_mvm_send_sta_igtk(mvm, keyconf, sta_id, false);
3901e829b17cSBeni Lev goto end;
390285aeb58cSDavid Spinadel }
3903e705c121SKalle Valo
39044615fd15SEmmanuel Grumbach /* If the key_offset is not pre-assigned, we need to find a
39054615fd15SEmmanuel Grumbach * new offset to use. In normal cases, the offset is not
39064615fd15SEmmanuel Grumbach * pre-assigned, but during HW_RESTART we want to reuse the
39074615fd15SEmmanuel Grumbach * same indices, so we pass them when this function is called.
39084615fd15SEmmanuel Grumbach *
39094615fd15SEmmanuel Grumbach * In D3 entry, we need to hardcoded the indices (because the
39104615fd15SEmmanuel Grumbach * firmware hardcodes the PTK offset to 0). In this case, we
39114615fd15SEmmanuel Grumbach * need to make sure we don't overwrite the hw_key_idx in the
39124615fd15SEmmanuel Grumbach * keyconf structure, because otherwise we cannot configure
39134615fd15SEmmanuel Grumbach * the original ones back when resuming.
3914e705c121SKalle Valo */
39154615fd15SEmmanuel Grumbach if (key_offset == STA_KEY_IDX_INVALID) {
39164615fd15SEmmanuel Grumbach key_offset = iwl_mvm_set_fw_key_idx(mvm);
39174615fd15SEmmanuel Grumbach if (key_offset == STA_KEY_IDX_INVALID)
3918e705c121SKalle Valo return -ENOSPC;
39194615fd15SEmmanuel Grumbach keyconf->hw_key_idx = key_offset;
3920e705c121SKalle Valo }
3921e705c121SKalle Valo
39224615fd15SEmmanuel Grumbach ret = __iwl_mvm_set_sta_key(mvm, vif, sta, keyconf, key_offset, mcast);
39239c3deeb5SLuca Coelho if (ret)
3924e705c121SKalle Valo goto end;
3925e705c121SKalle Valo
3926e705c121SKalle Valo /*
3927e705c121SKalle Valo * For WEP, the same key is used for multicast and unicast. Upload it
3928e705c121SKalle Valo * again, using the same key offset, and now pointing the other one
3929e705c121SKalle Valo * to the same key slot (offset).
3930e705c121SKalle Valo * If this fails, remove the original as well.
3931e705c121SKalle Valo */
393285aeb58cSDavid Spinadel if ((keyconf->cipher == WLAN_CIPHER_SUITE_WEP40 ||
393385aeb58cSDavid Spinadel keyconf->cipher == WLAN_CIPHER_SUITE_WEP104) &&
393485aeb58cSDavid Spinadel sta) {
39354615fd15SEmmanuel Grumbach ret = __iwl_mvm_set_sta_key(mvm, vif, sta, keyconf,
39364615fd15SEmmanuel Grumbach key_offset, !mcast);
3937e705c121SKalle Valo if (ret) {
3938e705c121SKalle Valo __iwl_mvm_remove_sta_key(mvm, sta_id, keyconf, mcast);
39399c3deeb5SLuca Coelho goto end;
3940e705c121SKalle Valo }
3941e705c121SKalle Valo }
3942e705c121SKalle Valo
39439c3deeb5SLuca Coelho __set_bit(key_offset, mvm->fw_key_table);
39449c3deeb5SLuca Coelho
3945e705c121SKalle Valo end:
3946e705c121SKalle Valo IWL_DEBUG_WEP(mvm, "key: cipher=%x len=%d idx=%d sta=%pM ret=%d\n",
3947e705c121SKalle Valo keyconf->cipher, keyconf->keylen, keyconf->keyidx,
3948e705c121SKalle Valo sta ? sta->addr : zero_addr, ret);
3949e705c121SKalle Valo return ret;
3950e705c121SKalle Valo }
3951e705c121SKalle Valo
iwl_mvm_remove_sta_key(struct iwl_mvm * mvm,struct ieee80211_vif * vif,struct ieee80211_sta * sta,struct ieee80211_key_conf * keyconf)3952e705c121SKalle Valo int iwl_mvm_remove_sta_key(struct iwl_mvm *mvm,
3953e705c121SKalle Valo struct ieee80211_vif *vif,
3954e705c121SKalle Valo struct ieee80211_sta *sta,
3955e705c121SKalle Valo struct ieee80211_key_conf *keyconf)
3956e705c121SKalle Valo {
3957e705c121SKalle Valo bool mcast = !(keyconf->flags & IEEE80211_KEY_FLAG_PAIRWISE);
39585f7a1847SJohannes Berg struct iwl_mvm_sta *mvm_sta;
39590ae98812SSara Sharon u8 sta_id = IWL_MVM_INVALID_STA;
3960e705c121SKalle Valo int ret, i;
3961e705c121SKalle Valo
3962e705c121SKalle Valo lockdep_assert_held(&mvm->mutex);
3963e705c121SKalle Valo
39645f7a1847SJohannes Berg /* Get the station from the mvm local station table */
39655f7a1847SJohannes Berg mvm_sta = iwl_mvm_get_key_sta(mvm, vif, sta);
396671793b7dSLuca Coelho if (mvm_sta)
3967c8ee33e1SGregory Greenman sta_id = mvm_sta->deflink.sta_id;
396885aeb58cSDavid Spinadel else if (!sta && vif->type == NL80211_IFTYPE_AP && mcast)
3969650cadb7SGregory Greenman sta_id = iwl_mvm_vif_from_mac80211(vif)->deflink.mcast_sta.sta_id;
397085aeb58cSDavid Spinadel
3971e705c121SKalle Valo
3972e705c121SKalle Valo IWL_DEBUG_WEP(mvm, "mvm remove dynamic key: idx=%d sta=%d\n",
3973e705c121SKalle Valo keyconf->keyidx, sta_id);
3974e705c121SKalle Valo
3975197288d5SLuca Coelho if (keyconf->cipher == WLAN_CIPHER_SUITE_AES_CMAC ||
39768e160ab8SAyala Beker keyconf->cipher == WLAN_CIPHER_SUITE_BIP_GMAC_128 ||
3977197288d5SLuca Coelho keyconf->cipher == WLAN_CIPHER_SUITE_BIP_GMAC_256)
3978e705c121SKalle Valo return iwl_mvm_send_sta_igtk(mvm, keyconf, sta_id, true);
3979e705c121SKalle Valo
3980e705c121SKalle Valo if (!__test_and_clear_bit(keyconf->hw_key_idx, mvm->fw_key_table)) {
3981e705c121SKalle Valo IWL_ERR(mvm, "offset %d not used in fw key table.\n",
3982e705c121SKalle Valo keyconf->hw_key_idx);
3983e705c121SKalle Valo return -ENOENT;
3984e705c121SKalle Valo }
3985e705c121SKalle Valo
3986e705c121SKalle Valo /* track which key was deleted last */
3987e705c121SKalle Valo for (i = 0; i < STA_KEY_MAX_NUM; i++) {
3988e705c121SKalle Valo if (mvm->fw_key_deleted[i] < U8_MAX)
3989e705c121SKalle Valo mvm->fw_key_deleted[i]++;
3990e705c121SKalle Valo }
3991e705c121SKalle Valo mvm->fw_key_deleted[keyconf->hw_key_idx] = 0;
3992e705c121SKalle Valo
399385aeb58cSDavid Spinadel if (sta && !mvm_sta) {
3994e705c121SKalle Valo IWL_DEBUG_WEP(mvm, "station non-existent, early return.\n");
3995e705c121SKalle Valo return 0;
3996e705c121SKalle Valo }
3997e705c121SKalle Valo
3998e705c121SKalle Valo ret = __iwl_mvm_remove_sta_key(mvm, sta_id, keyconf, mcast);
3999e705c121SKalle Valo if (ret)
4000e705c121SKalle Valo return ret;
4001e705c121SKalle Valo
4002e705c121SKalle Valo /* delete WEP key twice to get rid of (now useless) offset */
4003e705c121SKalle Valo if (keyconf->cipher == WLAN_CIPHER_SUITE_WEP40 ||
4004e705c121SKalle Valo keyconf->cipher == WLAN_CIPHER_SUITE_WEP104)
4005e705c121SKalle Valo ret = __iwl_mvm_remove_sta_key(mvm, sta_id, keyconf, !mcast);
4006e705c121SKalle Valo
4007e705c121SKalle Valo return ret;
4008e705c121SKalle Valo }
4009e705c121SKalle Valo
iwl_mvm_update_tkip_key(struct iwl_mvm * mvm,struct ieee80211_vif * vif,struct ieee80211_key_conf * keyconf,struct ieee80211_sta * sta,u32 iv32,u16 * phase1key)4010e705c121SKalle Valo void iwl_mvm_update_tkip_key(struct iwl_mvm *mvm,
4011e705c121SKalle Valo struct ieee80211_vif *vif,
4012e705c121SKalle Valo struct ieee80211_key_conf *keyconf,
4013e705c121SKalle Valo struct ieee80211_sta *sta, u32 iv32,
4014e705c121SKalle Valo u16 *phase1key)
4015e705c121SKalle Valo {
4016e705c121SKalle Valo struct iwl_mvm_sta *mvm_sta;
4017e705c121SKalle Valo bool mcast = !(keyconf->flags & IEEE80211_KEY_FLAG_PAIRWISE);
40184883145aSEmmanuel Grumbach bool mfp = sta ? sta->mfp : false;
4019e705c121SKalle Valo
4020e705c121SKalle Valo rcu_read_lock();
4021e705c121SKalle Valo
40225f7a1847SJohannes Berg mvm_sta = iwl_mvm_get_key_sta(mvm, vif, sta);
40235f7a1847SJohannes Berg if (WARN_ON_ONCE(!mvm_sta))
402412f17211SEmmanuel Grumbach goto unlock;
4025c8ee33e1SGregory Greenman iwl_mvm_send_sta_key(mvm, mvm_sta->deflink.sta_id, keyconf, mcast,
40264883145aSEmmanuel Grumbach iv32, phase1key, CMD_ASYNC, keyconf->hw_key_idx,
40274883145aSEmmanuel Grumbach mfp);
402812f17211SEmmanuel Grumbach
402912f17211SEmmanuel Grumbach unlock:
4030e705c121SKalle Valo rcu_read_unlock();
4031e705c121SKalle Valo }
4032e705c121SKalle Valo
iwl_mvm_sta_modify_ps_wake(struct iwl_mvm * mvm,struct ieee80211_sta * sta)4033e705c121SKalle Valo void iwl_mvm_sta_modify_ps_wake(struct iwl_mvm *mvm,
4034e705c121SKalle Valo struct ieee80211_sta *sta)
4035e705c121SKalle Valo {
4036e705c121SKalle Valo struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(sta);
4037e705c121SKalle Valo struct iwl_mvm_add_sta_cmd cmd = {
4038e705c121SKalle Valo .add_modify = STA_MODE_MODIFY,
4039c8ee33e1SGregory Greenman .sta_id = mvmsta->deflink.sta_id,
4040e705c121SKalle Valo .station_flags_msk = cpu_to_le32(STA_FLG_PS),
4041e705c121SKalle Valo .mac_id_n_color = cpu_to_le32(mvmsta->mac_id_n_color),
4042e705c121SKalle Valo };
4043e705c121SKalle Valo int ret;
4044e705c121SKalle Valo
4045854c5705SSara Sharon ret = iwl_mvm_send_cmd_pdu(mvm, ADD_STA, CMD_ASYNC,
4046854c5705SSara Sharon iwl_mvm_add_sta_cmd_size(mvm), &cmd);
4047e705c121SKalle Valo if (ret)
4048e705c121SKalle Valo IWL_ERR(mvm, "Failed to send ADD_STA command (%d)\n", ret);
4049e705c121SKalle Valo }
4050e705c121SKalle Valo
iwl_mvm_sta_modify_sleep_tx_count(struct iwl_mvm * mvm,struct ieee80211_sta * sta,enum ieee80211_frame_release_type reason,u16 cnt,u16 tids,bool more_data,bool single_sta_queue)4051e705c121SKalle Valo void iwl_mvm_sta_modify_sleep_tx_count(struct iwl_mvm *mvm,
4052e705c121SKalle Valo struct ieee80211_sta *sta,
4053e705c121SKalle Valo enum ieee80211_frame_release_type reason,
4054e705c121SKalle Valo u16 cnt, u16 tids, bool more_data,
40559a3fcf91SSara Sharon bool single_sta_queue)
4056e705c121SKalle Valo {
4057e705c121SKalle Valo struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(sta);
4058e705c121SKalle Valo struct iwl_mvm_add_sta_cmd cmd = {
4059e705c121SKalle Valo .add_modify = STA_MODE_MODIFY,
4060c8ee33e1SGregory Greenman .sta_id = mvmsta->deflink.sta_id,
4061e705c121SKalle Valo .modify_mask = STA_MODIFY_SLEEPING_STA_TX_COUNT,
4062e705c121SKalle Valo .sleep_tx_count = cpu_to_le16(cnt),
4063e705c121SKalle Valo .mac_id_n_color = cpu_to_le32(mvmsta->mac_id_n_color),
4064e705c121SKalle Valo };
4065e705c121SKalle Valo int tid, ret;
4066e705c121SKalle Valo unsigned long _tids = tids;
4067e705c121SKalle Valo
4068e705c121SKalle Valo /* convert TIDs to ACs - we don't support TSPEC so that's OK
4069e705c121SKalle Valo * Note that this field is reserved and unused by firmware not
4070e705c121SKalle Valo * supporting GO uAPSD, so it's safe to always do this.
4071e705c121SKalle Valo */
4072e705c121SKalle Valo for_each_set_bit(tid, &_tids, IWL_MAX_TID_COUNT)
4073e705c121SKalle Valo cmd.awake_acs |= BIT(tid_to_ucode_ac[tid]);
4074e705c121SKalle Valo
40759a3fcf91SSara Sharon /* If we're releasing frames from aggregation or dqa queues then check
40769a3fcf91SSara Sharon * if all the queues that we're releasing frames from, combined, have:
4077e705c121SKalle Valo * - more frames than the service period, in which case more_data
4078e705c121SKalle Valo * needs to be set
4079e705c121SKalle Valo * - fewer than 'cnt' frames, in which case we need to adjust the
4080e705c121SKalle Valo * firmware command (but do that unconditionally)
4081e705c121SKalle Valo */
40829a3fcf91SSara Sharon if (single_sta_queue) {
4083e705c121SKalle Valo int remaining = cnt;
408436be0eb6SEmmanuel Grumbach int sleep_tx_count;
4085e705c121SKalle Valo
4086e705c121SKalle Valo spin_lock_bh(&mvmsta->lock);
4087e705c121SKalle Valo for_each_set_bit(tid, &_tids, IWL_MAX_TID_COUNT) {
4088e705c121SKalle Valo struct iwl_mvm_tid_data *tid_data;
4089e705c121SKalle Valo u16 n_queued;
4090e705c121SKalle Valo
4091e705c121SKalle Valo tid_data = &mvmsta->tid_data[tid];
4092e705c121SKalle Valo
4093dd32162dSLiad Kaufman n_queued = iwl_mvm_tid_queued(mvm, tid_data);
4094e705c121SKalle Valo if (n_queued > remaining) {
4095e705c121SKalle Valo more_data = true;
4096e705c121SKalle Valo remaining = 0;
4097e705c121SKalle Valo break;
4098e705c121SKalle Valo }
4099e705c121SKalle Valo remaining -= n_queued;
4100e705c121SKalle Valo }
410136be0eb6SEmmanuel Grumbach sleep_tx_count = cnt - remaining;
410236be0eb6SEmmanuel Grumbach if (reason == IEEE80211_FRAME_RELEASE_UAPSD)
410336be0eb6SEmmanuel Grumbach mvmsta->sleep_tx_count = sleep_tx_count;
4104e705c121SKalle Valo spin_unlock_bh(&mvmsta->lock);
4105e705c121SKalle Valo
410636be0eb6SEmmanuel Grumbach cmd.sleep_tx_count = cpu_to_le16(sleep_tx_count);
4107e705c121SKalle Valo if (WARN_ON(cnt - remaining == 0)) {
4108e705c121SKalle Valo ieee80211_sta_eosp(sta);
4109e705c121SKalle Valo return;
4110e705c121SKalle Valo }
4111e705c121SKalle Valo }
4112e705c121SKalle Valo
4113e705c121SKalle Valo /* Note: this is ignored by firmware not supporting GO uAPSD */
4114e705c121SKalle Valo if (more_data)
4115ced19f26SSara Sharon cmd.sleep_state_flags |= STA_SLEEP_STATE_MOREDATA;
4116e705c121SKalle Valo
4117e705c121SKalle Valo if (reason == IEEE80211_FRAME_RELEASE_PSPOLL) {
4118e705c121SKalle Valo mvmsta->next_status_eosp = true;
4119ced19f26SSara Sharon cmd.sleep_state_flags |= STA_SLEEP_STATE_PS_POLL;
4120e705c121SKalle Valo } else {
4121ced19f26SSara Sharon cmd.sleep_state_flags |= STA_SLEEP_STATE_UAPSD;
4122e705c121SKalle Valo }
4123e705c121SKalle Valo
4124156f92f2SEmmanuel Grumbach /* block the Tx queues until the FW updated the sleep Tx count */
4125156f92f2SEmmanuel Grumbach iwl_trans_block_txq_ptrs(mvm->trans, true);
4126156f92f2SEmmanuel Grumbach
4127156f92f2SEmmanuel Grumbach ret = iwl_mvm_send_cmd_pdu(mvm, ADD_STA,
4128156f92f2SEmmanuel Grumbach CMD_ASYNC | CMD_WANT_ASYNC_CALLBACK,
4129854c5705SSara Sharon iwl_mvm_add_sta_cmd_size(mvm), &cmd);
4130e705c121SKalle Valo if (ret)
4131e705c121SKalle Valo IWL_ERR(mvm, "Failed to send ADD_STA command (%d)\n", ret);
4132e705c121SKalle Valo }
4133e705c121SKalle Valo
iwl_mvm_rx_eosp_notif(struct iwl_mvm * mvm,struct iwl_rx_cmd_buffer * rxb)4134e705c121SKalle Valo void iwl_mvm_rx_eosp_notif(struct iwl_mvm *mvm,
4135e705c121SKalle Valo struct iwl_rx_cmd_buffer *rxb)
4136e705c121SKalle Valo {
4137e705c121SKalle Valo struct iwl_rx_packet *pkt = rxb_addr(rxb);
4138e705c121SKalle Valo struct iwl_mvm_eosp_notification *notif = (void *)pkt->data;
4139e705c121SKalle Valo struct ieee80211_sta *sta;
4140e705c121SKalle Valo u32 sta_id = le32_to_cpu(notif->sta_id);
4141e705c121SKalle Valo
4142be9ae34eSNathan Errera if (WARN_ON_ONCE(sta_id >= mvm->fw->ucode_capa.num_stations))
4143e705c121SKalle Valo return;
4144e705c121SKalle Valo
4145e705c121SKalle Valo rcu_read_lock();
4146e705c121SKalle Valo sta = rcu_dereference(mvm->fw_id_to_mac_id[sta_id]);
4147e705c121SKalle Valo if (!IS_ERR_OR_NULL(sta))
4148e705c121SKalle Valo ieee80211_sta_eosp(sta);
4149e705c121SKalle Valo rcu_read_unlock();
4150e705c121SKalle Valo }
4151e705c121SKalle Valo
iwl_mvm_sta_modify_disable_tx(struct iwl_mvm * mvm,struct iwl_mvm_sta * mvmsta,bool disable)4152e705c121SKalle Valo void iwl_mvm_sta_modify_disable_tx(struct iwl_mvm *mvm,
415356f4f12bSMiri Korenblit struct iwl_mvm_sta *mvmsta,
415456f4f12bSMiri Korenblit bool disable)
4155e705c121SKalle Valo {
4156e705c121SKalle Valo struct iwl_mvm_add_sta_cmd cmd = {
4157e705c121SKalle Valo .add_modify = STA_MODE_MODIFY,
4158c8ee33e1SGregory Greenman .sta_id = mvmsta->deflink.sta_id,
4159e705c121SKalle Valo .station_flags = disable ? cpu_to_le32(STA_FLG_DISABLE_TX) : 0,
4160e705c121SKalle Valo .station_flags_msk = cpu_to_le32(STA_FLG_DISABLE_TX),
4161e705c121SKalle Valo .mac_id_n_color = cpu_to_le32(mvmsta->mac_id_n_color),
4162e705c121SKalle Valo };
4163e705c121SKalle Valo int ret;
4164e705c121SKalle Valo
416556f4f12bSMiri Korenblit if (mvm->mld_api_is_used) {
416656f4f12bSMiri Korenblit iwl_mvm_mld_sta_modify_disable_tx(mvm, mvmsta, disable);
416756f4f12bSMiri Korenblit return;
416856f4f12bSMiri Korenblit }
416956f4f12bSMiri Korenblit
4170854c5705SSara Sharon ret = iwl_mvm_send_cmd_pdu(mvm, ADD_STA, CMD_ASYNC,
4171854c5705SSara Sharon iwl_mvm_add_sta_cmd_size(mvm), &cmd);
4172e705c121SKalle Valo if (ret)
4173e705c121SKalle Valo IWL_ERR(mvm, "Failed to send ADD_STA command (%d)\n", ret);
4174e705c121SKalle Valo }
4175e705c121SKalle Valo
iwl_mvm_sta_modify_disable_tx_ap(struct iwl_mvm * mvm,struct ieee80211_sta * sta,bool disable)4176e705c121SKalle Valo void iwl_mvm_sta_modify_disable_tx_ap(struct iwl_mvm *mvm,
4177e705c121SKalle Valo struct ieee80211_sta *sta,
4178e705c121SKalle Valo bool disable)
4179e705c121SKalle Valo {
4180e705c121SKalle Valo struct iwl_mvm_sta *mvm_sta = iwl_mvm_sta_from_mac80211(sta);
4181e705c121SKalle Valo
418256f4f12bSMiri Korenblit if (mvm->mld_api_is_used) {
418356f4f12bSMiri Korenblit iwl_mvm_mld_sta_modify_disable_tx_ap(mvm, sta, disable);
418456f4f12bSMiri Korenblit return;
418556f4f12bSMiri Korenblit }
418656f4f12bSMiri Korenblit
4187e705c121SKalle Valo spin_lock_bh(&mvm_sta->lock);
4188e705c121SKalle Valo
4189e705c121SKalle Valo if (mvm_sta->disable_tx == disable) {
4190e705c121SKalle Valo spin_unlock_bh(&mvm_sta->lock);
4191e705c121SKalle Valo return;
4192e705c121SKalle Valo }
4193e705c121SKalle Valo
4194e705c121SKalle Valo mvm_sta->disable_tx = disable;
4195e705c121SKalle Valo
4196b1c6cec0SNaftali Goldstein /*
4197b1c6cec0SNaftali Goldstein * If sta PS state is handled by mac80211, tell it to start/stop
4198b1c6cec0SNaftali Goldstein * queuing tx for this station.
4199b1c6cec0SNaftali Goldstein */
4200b1c6cec0SNaftali Goldstein if (!ieee80211_hw_check(mvm->hw, AP_LINK_PS))
4201e705c121SKalle Valo ieee80211_sta_block_awake(mvm->hw, sta, disable);
4202e705c121SKalle Valo
4203e705c121SKalle Valo iwl_mvm_sta_modify_disable_tx(mvm, mvm_sta, disable);
4204e705c121SKalle Valo
4205e705c121SKalle Valo spin_unlock_bh(&mvm_sta->lock);
4206e705c121SKalle Valo }
4207e705c121SKalle Valo
iwl_mvm_int_sta_modify_disable_tx(struct iwl_mvm * mvm,struct iwl_mvm_vif * mvmvif,struct iwl_mvm_int_sta * sta,bool disable)4208ced19f26SSara Sharon static void iwl_mvm_int_sta_modify_disable_tx(struct iwl_mvm *mvm,
4209ced19f26SSara Sharon struct iwl_mvm_vif *mvmvif,
4210ced19f26SSara Sharon struct iwl_mvm_int_sta *sta,
4211ced19f26SSara Sharon bool disable)
4212ced19f26SSara Sharon {
4213ced19f26SSara Sharon u32 id = FW_CMD_ID_AND_COLOR(mvmvif->id, mvmvif->color);
4214ced19f26SSara Sharon struct iwl_mvm_add_sta_cmd cmd = {
4215ced19f26SSara Sharon .add_modify = STA_MODE_MODIFY,
4216ced19f26SSara Sharon .sta_id = sta->sta_id,
4217ced19f26SSara Sharon .station_flags = disable ? cpu_to_le32(STA_FLG_DISABLE_TX) : 0,
4218ced19f26SSara Sharon .station_flags_msk = cpu_to_le32(STA_FLG_DISABLE_TX),
4219ced19f26SSara Sharon .mac_id_n_color = cpu_to_le32(id),
4220ced19f26SSara Sharon };
4221ced19f26SSara Sharon int ret;
4222ced19f26SSara Sharon
4223e5d153ecSEmmanuel Grumbach ret = iwl_mvm_send_cmd_pdu(mvm, ADD_STA, CMD_ASYNC,
4224ced19f26SSara Sharon iwl_mvm_add_sta_cmd_size(mvm), &cmd);
4225ced19f26SSara Sharon if (ret)
4226ced19f26SSara Sharon IWL_ERR(mvm, "Failed to send ADD_STA command (%d)\n", ret);
4227ced19f26SSara Sharon }
4228ced19f26SSara Sharon
iwl_mvm_modify_all_sta_disable_tx(struct iwl_mvm * mvm,struct iwl_mvm_vif * mvmvif,bool disable)4229e705c121SKalle Valo void iwl_mvm_modify_all_sta_disable_tx(struct iwl_mvm *mvm,
4230e705c121SKalle Valo struct iwl_mvm_vif *mvmvif,
4231e705c121SKalle Valo bool disable)
4232e705c121SKalle Valo {
4233e705c121SKalle Valo struct ieee80211_sta *sta;
4234e705c121SKalle Valo struct iwl_mvm_sta *mvm_sta;
4235e705c121SKalle Valo int i;
4236e705c121SKalle Valo
423756f4f12bSMiri Korenblit if (mvm->mld_api_is_used) {
423856f4f12bSMiri Korenblit iwl_mvm_mld_modify_all_sta_disable_tx(mvm, mvmvif, disable);
423956f4f12bSMiri Korenblit return;
424056f4f12bSMiri Korenblit }
424156f4f12bSMiri Korenblit
4242e5d153ecSEmmanuel Grumbach rcu_read_lock();
4243e705c121SKalle Valo
4244e705c121SKalle Valo /* Block/unblock all the stations of the given mvmvif */
4245be9ae34eSNathan Errera for (i = 0; i < mvm->fw->ucode_capa.num_stations; i++) {
4246e5d153ecSEmmanuel Grumbach sta = rcu_dereference(mvm->fw_id_to_mac_id[i]);
4247e705c121SKalle Valo if (IS_ERR_OR_NULL(sta))
4248e705c121SKalle Valo continue;
4249e705c121SKalle Valo
4250e705c121SKalle Valo mvm_sta = iwl_mvm_sta_from_mac80211(sta);
4251e705c121SKalle Valo if (mvm_sta->mac_id_n_color !=
4252e705c121SKalle Valo FW_CMD_ID_AND_COLOR(mvmvif->id, mvmvif->color))
4253e705c121SKalle Valo continue;
4254e705c121SKalle Valo
4255e705c121SKalle Valo iwl_mvm_sta_modify_disable_tx_ap(mvm, sta, disable);
4256e705c121SKalle Valo }
4257ced19f26SSara Sharon
4258e5d153ecSEmmanuel Grumbach rcu_read_unlock();
4259e5d153ecSEmmanuel Grumbach
4260ced19f26SSara Sharon if (!fw_has_api(&mvm->fw->ucode_capa, IWL_UCODE_TLV_API_STA_TYPE))
4261ced19f26SSara Sharon return;
4262ced19f26SSara Sharon
4263ced19f26SSara Sharon /* Need to block/unblock also multicast station */
4264650cadb7SGregory Greenman if (mvmvif->deflink.mcast_sta.sta_id != IWL_MVM_INVALID_STA)
4265ced19f26SSara Sharon iwl_mvm_int_sta_modify_disable_tx(mvm, mvmvif,
4266650cadb7SGregory Greenman &mvmvif->deflink.mcast_sta,
4267650cadb7SGregory Greenman disable);
4268ced19f26SSara Sharon
4269ced19f26SSara Sharon /*
4270ced19f26SSara Sharon * Only unblock the broadcast station (FW blocks it for immediate
4271ced19f26SSara Sharon * quiet, not the driver)
4272ced19f26SSara Sharon */
4273650cadb7SGregory Greenman if (!disable && mvmvif->deflink.bcast_sta.sta_id != IWL_MVM_INVALID_STA)
4274ced19f26SSara Sharon iwl_mvm_int_sta_modify_disable_tx(mvm, mvmvif,
4275650cadb7SGregory Greenman &mvmvif->deflink.bcast_sta,
4276650cadb7SGregory Greenman disable);
4277e705c121SKalle Valo }
4278e705c121SKalle Valo
iwl_mvm_csa_client_absent(struct iwl_mvm * mvm,struct ieee80211_vif * vif)4279e705c121SKalle Valo void iwl_mvm_csa_client_absent(struct iwl_mvm *mvm, struct ieee80211_vif *vif)
4280e705c121SKalle Valo {
4281e705c121SKalle Valo struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
4282e705c121SKalle Valo struct iwl_mvm_sta *mvmsta;
4283e705c121SKalle Valo
4284e705c121SKalle Valo rcu_read_lock();
4285e705c121SKalle Valo
4286650cadb7SGregory Greenman mvmsta = iwl_mvm_sta_from_staid_rcu(mvm, mvmvif->deflink.ap_sta_id);
4287e705c121SKalle Valo
4288ad12b231SNathan Errera if (mvmsta)
4289e705c121SKalle Valo iwl_mvm_sta_modify_disable_tx(mvm, mvmsta, true);
4290e705c121SKalle Valo
4291e705c121SKalle Valo rcu_read_unlock();
4292e705c121SKalle Valo }
4293dd32162dSLiad Kaufman
iwl_mvm_tid_queued(struct iwl_mvm * mvm,struct iwl_mvm_tid_data * tid_data)4294dd32162dSLiad Kaufman u16 iwl_mvm_tid_queued(struct iwl_mvm *mvm, struct iwl_mvm_tid_data *tid_data)
4295dd32162dSLiad Kaufman {
4296dd32162dSLiad Kaufman u16 sn = IEEE80211_SEQ_TO_SN(tid_data->seq_number);
4297dd32162dSLiad Kaufman
4298dd32162dSLiad Kaufman /*
42992f7a3863SLuca Coelho * In 22000 HW, the next_reclaimed index is only 8 bit, so we'll need
4300dd32162dSLiad Kaufman * to align the wrap around of ssn so we compare relevant values.
4301dd32162dSLiad Kaufman */
4302286ca8ebSLuca Coelho if (mvm->trans->trans_cfg->gen2)
4303dd32162dSLiad Kaufman sn &= 0xff;
4304dd32162dSLiad Kaufman
4305dd32162dSLiad Kaufman return ieee80211_sn_sub(sn, tid_data->next_reclaimed);
4306dd32162dSLiad Kaufman }
4307be82ecd3SAvraham Stern
iwl_mvm_add_pasn_sta(struct iwl_mvm * mvm,struct ieee80211_vif * vif,struct iwl_mvm_int_sta * sta,u8 * addr,u32 cipher,u8 * key,u32 key_len)4308be82ecd3SAvraham Stern int iwl_mvm_add_pasn_sta(struct iwl_mvm *mvm, struct ieee80211_vif *vif,
4309be82ecd3SAvraham Stern struct iwl_mvm_int_sta *sta, u8 *addr, u32 cipher,
4310be82ecd3SAvraham Stern u8 *key, u32 key_len)
4311be82ecd3SAvraham Stern {
4312be82ecd3SAvraham Stern int ret;
4313be82ecd3SAvraham Stern u16 queue;
4314be82ecd3SAvraham Stern struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
4315be82ecd3SAvraham Stern struct ieee80211_key_conf *keyconf;
43160945f976SAvraham Stern unsigned int wdg_timeout =
43170945f976SAvraham Stern iwl_mvm_get_wd_timeout(mvm, vif, false, false);
43180945f976SAvraham Stern bool mld = iwl_mvm_has_mld_api(mvm->fw);
43190945f976SAvraham Stern u32 type = mld ? STATION_TYPE_PEER : IWL_STA_LINK;
4320be82ecd3SAvraham Stern
4321be82ecd3SAvraham Stern ret = iwl_mvm_allocate_int_sta(mvm, sta, 0,
43220945f976SAvraham Stern NL80211_IFTYPE_UNSPECIFIED, type);
4323be82ecd3SAvraham Stern if (ret)
4324be82ecd3SAvraham Stern return ret;
4325be82ecd3SAvraham Stern
43260945f976SAvraham Stern if (mld)
43270945f976SAvraham Stern ret = iwl_mvm_mld_add_int_sta_with_queue(mvm, sta, addr,
43280945f976SAvraham Stern mvmvif->deflink.fw_link_id,
43290945f976SAvraham Stern &queue,
43300945f976SAvraham Stern IWL_MAX_TID_COUNT,
43310945f976SAvraham Stern &wdg_timeout);
43320945f976SAvraham Stern else
43330945f976SAvraham Stern ret = iwl_mvm_add_int_sta_with_queue(mvm, mvmvif->id,
43340945f976SAvraham Stern mvmvif->color, addr, sta,
43350945f976SAvraham Stern &queue,
4336be82ecd3SAvraham Stern IWL_MVM_TX_FIFO_BE);
4337be82ecd3SAvraham Stern if (ret)
4338be82ecd3SAvraham Stern goto out;
4339be82ecd3SAvraham Stern
4340be82ecd3SAvraham Stern keyconf = kzalloc(sizeof(*keyconf) + key_len, GFP_KERNEL);
4341be82ecd3SAvraham Stern if (!keyconf) {
4342be82ecd3SAvraham Stern ret = -ENOBUFS;
4343be82ecd3SAvraham Stern goto out;
4344be82ecd3SAvraham Stern }
4345be82ecd3SAvraham Stern
4346be82ecd3SAvraham Stern keyconf->cipher = cipher;
4347be82ecd3SAvraham Stern memcpy(keyconf->key, key, key_len);
4348be82ecd3SAvraham Stern keyconf->keylen = key_len;
43490945f976SAvraham Stern keyconf->flags = IEEE80211_KEY_FLAG_PAIRWISE;
4350be82ecd3SAvraham Stern
43510945f976SAvraham Stern if (mld) {
43520945f976SAvraham Stern /* The MFP flag is set according to the station mfp field. Since
43530945f976SAvraham Stern * we don't have a station, set it manually.
43540945f976SAvraham Stern */
43550945f976SAvraham Stern u32 key_flags =
43560945f976SAvraham Stern iwl_mvm_get_sec_flags(mvm, vif, NULL, keyconf) |
43570945f976SAvraham Stern IWL_SEC_KEY_FLAG_MFP;
43580945f976SAvraham Stern u32 sta_mask = BIT(sta->sta_id);
43590945f976SAvraham Stern
43600945f976SAvraham Stern ret = iwl_mvm_mld_send_key(mvm, sta_mask, key_flags, keyconf);
43610945f976SAvraham Stern } else {
4362be82ecd3SAvraham Stern ret = iwl_mvm_send_sta_key(mvm, sta->sta_id, keyconf, false,
4363be82ecd3SAvraham Stern 0, NULL, 0, 0, true);
43640945f976SAvraham Stern }
43650945f976SAvraham Stern
4366be82ecd3SAvraham Stern kfree(keyconf);
4367be82ecd3SAvraham Stern return 0;
4368be82ecd3SAvraham Stern out:
4369be82ecd3SAvraham Stern iwl_mvm_dealloc_int_sta(mvm, sta);
4370be82ecd3SAvraham Stern return ret;
4371be82ecd3SAvraham Stern }
4372ad12b231SNathan Errera
iwl_mvm_cancel_channel_switch(struct iwl_mvm * mvm,struct ieee80211_vif * vif,u32 id)4373ad12b231SNathan Errera void iwl_mvm_cancel_channel_switch(struct iwl_mvm *mvm,
4374ad12b231SNathan Errera struct ieee80211_vif *vif,
4375fa53608bSGregory Greenman u32 id)
4376ad12b231SNathan Errera {
4377ad12b231SNathan Errera struct iwl_cancel_channel_switch_cmd cancel_channel_switch_cmd = {
4378fa53608bSGregory Greenman .id = cpu_to_le32(id),
4379ad12b231SNathan Errera };
4380ad12b231SNathan Errera int ret;
4381ad12b231SNathan Errera
4382ad12b231SNathan Errera ret = iwl_mvm_send_cmd_pdu(mvm,
4383f0c86427SJohannes Berg WIDE_ID(MAC_CONF_GROUP, CANCEL_CHANNEL_SWITCH_CMD),
4384ad12b231SNathan Errera CMD_ASYNC,
4385ad12b231SNathan Errera sizeof(cancel_channel_switch_cmd),
4386ad12b231SNathan Errera &cancel_channel_switch_cmd);
4387ad12b231SNathan Errera if (ret)
4388ad12b231SNathan Errera IWL_ERR(mvm, "Failed to cancel the channel switch\n");
4389ad12b231SNathan Errera }
4390