new file mode 100644
@@ -0,0 +1,851 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * NXP Wireless LAN device driver: 802.11n
+ *
+ * Copyright 2011-2024 NXP
+ */
+
+#include "decl.h"
+#include "ioctl.h"
+#include "util.h"
+#include "fw.h"
+#include "main.h"
+#include "cmdevt.h"
+#include "wmm.h"
+#include "11n.h"
+
+/* Fills HT capability information field, AMPDU Parameters field, HT extended
+ * capability field, and supported MCS set fields.
+ *
+ * HT capability information field, AMPDU Parameters field, supported MCS set
+ * fields are retrieved from cfg80211 stack
+ *
+ * RD responder bit to set to clear in the extended capability header.
+ */
+int nxpwifi_fill_cap_info(struct nxpwifi_private *priv, u8 radio_type,
+ struct ieee80211_ht_cap *ht_cap)
+{
+ u16 ht_cap_info;
+ u16 bcn_ht_cap = le16_to_cpu(ht_cap->cap_info);
+ u16 ht_ext_cap = le16_to_cpu(ht_cap->extended_ht_cap_info);
+ struct ieee80211_supported_band *sband =
+ priv->wdev.wiphy->bands[radio_type];
+
+ if (WARN_ON_ONCE(!sband)) {
+ nxpwifi_dbg(priv->adapter, ERROR, "Invalid radio type!\n");
+ return -EINVAL;
+ }
+
+ ht_cap->ampdu_params_info =
+ (sband->ht_cap.ampdu_factor &
+ IEEE80211_HT_AMPDU_PARM_FACTOR) |
+ ((sband->ht_cap.ampdu_density <<
+ IEEE80211_HT_AMPDU_PARM_DENSITY_SHIFT) &
+ IEEE80211_HT_AMPDU_PARM_DENSITY);
+
+ memcpy((u8 *)&ht_cap->mcs, &sband->ht_cap.mcs,
+ sizeof(sband->ht_cap.mcs));
+
+ if (priv->bss_mode == NL80211_IFTYPE_STATION ||
+ (sband->ht_cap.cap & IEEE80211_HT_CAP_SUP_WIDTH_20_40 &&
+ priv->adapter->sec_chan_offset != IEEE80211_HT_PARAM_CHA_SEC_NONE))
+ /* Set MCS32 for infra mode or ad-hoc mode with 40MHz support */
+ SETHT_MCS32(ht_cap->mcs.rx_mask);
+
+ /* Clear RD responder bit */
+ ht_ext_cap &= ~IEEE80211_HT_EXT_CAP_RD_RESPONDER;
+
+ ht_cap_info = sband->ht_cap.cap;
+ if (bcn_ht_cap) {
+ if (!(bcn_ht_cap & IEEE80211_HT_CAP_SUP_WIDTH_20_40))
+ ht_cap_info &= ~IEEE80211_HT_CAP_SUP_WIDTH_20_40;
+ if (!(bcn_ht_cap & IEEE80211_HT_CAP_SGI_40))
+ ht_cap_info &= ~IEEE80211_HT_CAP_SGI_40;
+ if (!(bcn_ht_cap & IEEE80211_HT_CAP_40MHZ_INTOLERANT))
+ ht_cap_info &= ~IEEE80211_HT_CAP_40MHZ_INTOLERANT;
+ }
+ ht_cap->cap_info = cpu_to_le16(ht_cap_info);
+ ht_cap->extended_ht_cap_info = cpu_to_le16(ht_ext_cap);
+
+ if (ISSUPP_BEAMFORMING(priv->adapter->hw_dot_11n_dev_cap))
+ ht_cap->tx_BF_cap_info = cpu_to_le32(NXPWIFI_DEF_11N_TX_BF_CAP);
+
+ return 0;
+}
+
+/* This function returns the pointer to an entry in BA Stream
+ * table which matches the requested BA status.
+ */
+static struct nxpwifi_tx_ba_stream_tbl *
+nxpwifi_get_ba_status(struct nxpwifi_private *priv,
+ enum nxpwifi_ba_status ba_status)
+{
+ struct nxpwifi_tx_ba_stream_tbl *tx_ba_tsr_tbl;
+
+ spin_lock_bh(&priv->tx_ba_stream_tbl_lock);
+ list_for_each_entry(tx_ba_tsr_tbl, &priv->tx_ba_stream_tbl_ptr, list) {
+ if (tx_ba_tsr_tbl->ba_status == ba_status) {
+ spin_unlock_bh(&priv->tx_ba_stream_tbl_lock);
+ return tx_ba_tsr_tbl;
+ }
+ }
+ spin_unlock_bh(&priv->tx_ba_stream_tbl_lock);
+ return NULL;
+}
+
+/* This function handles the command response of delete a block
+ * ack request.
+ *
+ * The function checks the response success status and takes action
+ * accordingly (send an add BA request in case of success, or recreate
+ * the deleted stream in case of failure, if the add BA was also
+ * initiated by us).
+ */
+int nxpwifi_ret_11n_delba(struct nxpwifi_private *priv,
+ struct host_cmd_ds_command *resp)
+{
+ int tid;
+ struct nxpwifi_tx_ba_stream_tbl *tx_ba_tbl;
+ struct host_cmd_ds_11n_delba *del_ba = &resp->params.del_ba;
+ u16 del_ba_param_set = le16_to_cpu(del_ba->del_ba_param_set);
+
+ tid = del_ba_param_set >> DELBA_TID_POS;
+ if (del_ba->del_result == BA_RESULT_SUCCESS) {
+ nxpwifi_del_ba_tbl(priv, tid, del_ba->peer_mac_addr,
+ TYPE_DELBA_SENT,
+ INITIATOR_BIT(del_ba_param_set));
+
+ tx_ba_tbl = nxpwifi_get_ba_status(priv, BA_SETUP_INPROGRESS);
+ if (tx_ba_tbl)
+ nxpwifi_send_addba(priv, tx_ba_tbl->tid,
+ tx_ba_tbl->ra);
+ } else { /*
+ * In case of failure, recreate the deleted stream in case
+ * we initiated the DELBA
+ */
+ if (!INITIATOR_BIT(del_ba_param_set))
+ return 0;
+
+ nxpwifi_create_ba_tbl(priv, del_ba->peer_mac_addr, tid,
+ BA_SETUP_INPROGRESS);
+
+ tx_ba_tbl = nxpwifi_get_ba_status(priv, BA_SETUP_INPROGRESS);
+
+ if (tx_ba_tbl)
+ nxpwifi_del_ba_tbl(priv, tx_ba_tbl->tid, tx_ba_tbl->ra,
+ TYPE_DELBA_SENT, true);
+ }
+
+ return 0;
+}
+
+/* This function handles the command response of add a block
+ * ack request.
+ *
+ * Handling includes changing the header fields to CPU formats, checking
+ * the response success status and taking actions accordingly (delete the
+ * BA stream table in case of failure).
+ */
+int nxpwifi_ret_11n_addba_req(struct nxpwifi_private *priv,
+ struct host_cmd_ds_command *resp)
+{
+ int tid, tid_down;
+ struct host_cmd_ds_11n_addba_rsp *add_ba_rsp = &resp->params.add_ba_rsp;
+ struct nxpwifi_tx_ba_stream_tbl *tx_ba_tbl;
+ struct nxpwifi_ra_list_tbl *ra_list;
+ u16 block_ack_param_set = le16_to_cpu(add_ba_rsp->block_ack_param_set);
+
+ add_ba_rsp->ssn = cpu_to_le16((le16_to_cpu(add_ba_rsp->ssn))
+ & SSN_MASK);
+
+ tid = (block_ack_param_set & IEEE80211_ADDBA_PARAM_TID_MASK)
+ >> BLOCKACKPARAM_TID_POS;
+
+ tid_down = nxpwifi_wmm_downgrade_tid(priv, tid);
+ ra_list = nxpwifi_wmm_get_ralist_node(priv, tid_down,
+ add_ba_rsp->peer_mac_addr);
+ if (le16_to_cpu(add_ba_rsp->status_code) != BA_RESULT_SUCCESS) {
+ if (ra_list) {
+ ra_list->ba_status = BA_SETUP_NONE;
+ ra_list->amsdu_in_ampdu = false;
+ }
+ nxpwifi_del_ba_tbl(priv, tid, add_ba_rsp->peer_mac_addr,
+ TYPE_DELBA_SENT, true);
+ if (add_ba_rsp->add_rsp_result != BA_RESULT_TIMEOUT)
+ priv->aggr_prio_tbl[tid].ampdu_ap =
+ BA_STREAM_NOT_ALLOWED;
+ return 0;
+ }
+
+ tx_ba_tbl = nxpwifi_get_ba_tbl(priv, tid, add_ba_rsp->peer_mac_addr);
+ if (tx_ba_tbl) {
+ nxpwifi_dbg(priv->adapter, EVENT, "info: BA stream complete\n");
+ tx_ba_tbl->ba_status = BA_SETUP_COMPLETE;
+ if ((block_ack_param_set & BLOCKACKPARAM_AMSDU_SUPP_MASK) &&
+ priv->add_ba_param.tx_amsdu &&
+ priv->aggr_prio_tbl[tid].amsdu != BA_STREAM_NOT_ALLOWED)
+ tx_ba_tbl->amsdu = true;
+ else
+ tx_ba_tbl->amsdu = false;
+ if (ra_list) {
+ ra_list->amsdu_in_ampdu = tx_ba_tbl->amsdu;
+ ra_list->ba_status = BA_SETUP_COMPLETE;
+ }
+ } else {
+ nxpwifi_dbg(priv->adapter, ERROR, "BA stream not created\n");
+ }
+
+ return 0;
+}
+
+/* This function prepares command of reconfigure Tx buffer.
+ *
+ * Preparation includes -
+ * - Setting command ID, action and proper size
+ * - Setting Tx buffer size (for SET only)
+ * - Ensuring correct endian-ness
+ */
+int nxpwifi_cmd_recfg_tx_buf(struct nxpwifi_private *priv,
+ struct host_cmd_ds_command *cmd, int cmd_action,
+ u16 *buf_size)
+{
+ struct host_cmd_ds_txbuf_cfg *tx_buf = &cmd->params.tx_buf;
+ u16 action = (u16)cmd_action;
+
+ cmd->command = cpu_to_le16(HOST_CMD_RECONFIGURE_TX_BUFF);
+ cmd->size =
+ cpu_to_le16(sizeof(struct host_cmd_ds_txbuf_cfg) + S_DS_GEN);
+ tx_buf->action = cpu_to_le16(action);
+ switch (action) {
+ case HOST_ACT_GEN_SET:
+ nxpwifi_dbg(priv->adapter, CMD,
+ "cmd: set tx_buf=%d\n", *buf_size);
+ tx_buf->buff_size = cpu_to_le16(*buf_size);
+ break;
+ case HOST_ACT_GEN_GET:
+ default:
+ tx_buf->buff_size = 0;
+ break;
+ }
+ return 0;
+}
+
+/* This function prepares command of AMSDU aggregation control.
+ *
+ * Preparation includes -
+ * - Setting command ID, action and proper size
+ * - Setting AMSDU control parameters (for SET only)
+ * - Ensuring correct endian-ness
+ */
+int nxpwifi_cmd_amsdu_aggr_ctrl(struct host_cmd_ds_command *cmd,
+ int cmd_action,
+ struct nxpwifi_ds_11n_amsdu_aggr_ctrl *aa_ctrl)
+{
+ struct host_cmd_ds_amsdu_aggr_ctrl *amsdu_ctrl =
+ &cmd->params.amsdu_aggr_ctrl;
+ u16 action = (u16)cmd_action;
+
+ cmd->command = cpu_to_le16(HOST_CMD_AMSDU_AGGR_CTRL);
+ cmd->size = cpu_to_le16(sizeof(struct host_cmd_ds_amsdu_aggr_ctrl)
+ + S_DS_GEN);
+ amsdu_ctrl->action = cpu_to_le16(action);
+ switch (action) {
+ case HOST_ACT_GEN_SET:
+ amsdu_ctrl->enable = cpu_to_le16(aa_ctrl->enable);
+ amsdu_ctrl->curr_buf_size = 0;
+ break;
+ case HOST_ACT_GEN_GET:
+ default:
+ amsdu_ctrl->curr_buf_size = 0;
+ break;
+ }
+ return 0;
+}
+
+/* This function prepares 11n configuration command.
+ *
+ * Preparation includes -
+ * - Setting command ID, action and proper size
+ * - Setting HT Tx capability and HT Tx information fields
+ * - Ensuring correct endian-ness
+ */
+int nxpwifi_cmd_11n_cfg(struct nxpwifi_private *priv,
+ struct host_cmd_ds_command *cmd, u16 cmd_action,
+ struct nxpwifi_ds_11n_tx_cfg *txcfg)
+{
+ struct host_cmd_ds_11n_cfg *htcfg = &cmd->params.htcfg;
+
+ cmd->command = cpu_to_le16(HOST_CMD_11N_CFG);
+ cmd->size = cpu_to_le16(sizeof(struct host_cmd_ds_11n_cfg) + S_DS_GEN);
+ htcfg->action = cpu_to_le16(cmd_action);
+ htcfg->ht_tx_cap = cpu_to_le16(txcfg->tx_htcap);
+ htcfg->ht_tx_info = cpu_to_le16(txcfg->tx_htinfo);
+
+ if (priv->adapter->is_hw_11ac_capable)
+ htcfg->misc_config = cpu_to_le16(txcfg->misc_config);
+
+ return 0;
+}
+
+/* This function appends an 11n TLV to a buffer.
+ *
+ * Buffer allocation is responsibility of the calling
+ * function. No size validation is made here.
+ *
+ * The function fills up the following sections, if applicable -
+ * - HT capability IE
+ * - HT information IE (with channel list)
+ * - 20/40 BSS Coexistence IE
+ * - HT Extended Capabilities IE
+ */
+int
+nxpwifi_cmd_append_11n_tlv(struct nxpwifi_private *priv,
+ struct nxpwifi_bssdescriptor *bss_desc,
+ u8 **buffer)
+{
+ struct nxpwifi_ie_types_htcap *ht_cap;
+ struct nxpwifi_ie_types_chan_list_param_set *chan_list;
+ struct nxpwifi_ie_types_2040bssco *bss_co_2040;
+ struct nxpwifi_ie_types_extcap *ext_cap;
+ int ret_len = 0;
+ struct ieee80211_supported_band *sband;
+ struct ieee_types_header *hdr;
+ u8 radio_type;
+
+ if (!buffer || !*buffer)
+ return ret_len;
+
+ radio_type = nxpwifi_band_to_radio_type((u8)bss_desc->bss_band);
+ sband = priv->wdev.wiphy->bands[radio_type];
+
+ if (bss_desc->bcn_ht_cap) {
+ ht_cap = (struct nxpwifi_ie_types_htcap *)*buffer;
+ memset(ht_cap, 0, sizeof(struct nxpwifi_ie_types_htcap));
+ ht_cap->header.type = cpu_to_le16(WLAN_EID_HT_CAPABILITY);
+ ht_cap->header.len =
+ cpu_to_le16(sizeof(struct ieee80211_ht_cap));
+ memcpy((u8 *)ht_cap + sizeof(struct nxpwifi_ie_types_header),
+ (u8 *)bss_desc->bcn_ht_cap,
+ le16_to_cpu(ht_cap->header.len));
+
+ nxpwifi_fill_cap_info(priv, radio_type, &ht_cap->ht_cap);
+ /* Update HT40 capability from current channel information */
+ if (bss_desc->bcn_ht_oper) {
+ u8 ht_param = bss_desc->bcn_ht_oper->ht_param;
+ u8 radio =
+ nxpwifi_band_to_radio_type(bss_desc->bss_band);
+ int freq =
+ ieee80211_channel_to_frequency(bss_desc->channel,
+ radio);
+ struct ieee80211_channel *chan =
+ ieee80211_get_channel(priv->adapter->wiphy, freq);
+
+ switch (ht_param & IEEE80211_HT_PARAM_CHA_SEC_OFFSET) {
+ case IEEE80211_HT_PARAM_CHA_SEC_ABOVE:
+ if (chan->flags & IEEE80211_CHAN_NO_HT40PLUS) {
+ ht_cap->ht_cap.cap_info &=
+ cpu_to_le16
+ (~IEEE80211_HT_CAP_SUP_WIDTH_20_40);
+ ht_cap->ht_cap.cap_info &=
+ cpu_to_le16(~IEEE80211_HT_CAP_SGI_40);
+ }
+ break;
+ case IEEE80211_HT_PARAM_CHA_SEC_BELOW:
+ if (chan->flags & IEEE80211_CHAN_NO_HT40MINUS) {
+ ht_cap->ht_cap.cap_info &=
+ cpu_to_le16
+ (~IEEE80211_HT_CAP_SUP_WIDTH_20_40);
+ ht_cap->ht_cap.cap_info &=
+ cpu_to_le16(~IEEE80211_HT_CAP_SGI_40);
+ }
+ break;
+ }
+ }
+
+ *buffer += sizeof(struct nxpwifi_ie_types_htcap);
+ ret_len += sizeof(struct nxpwifi_ie_types_htcap);
+ }
+
+ if (bss_desc->bcn_ht_oper) {
+ chan_list =
+ (struct nxpwifi_ie_types_chan_list_param_set *)*buffer;
+ memset(chan_list, 0, struct_size(chan_list, chan_scan_param, 1));
+ chan_list->header.type = cpu_to_le16(TLV_TYPE_CHANLIST);
+ chan_list->header.len =
+ cpu_to_le16(sizeof(struct nxpwifi_chan_scan_param_set));
+ chan_list->chan_scan_param[0].chan_number =
+ bss_desc->bcn_ht_oper->primary_chan;
+ chan_list->chan_scan_param[0].radio_type =
+ nxpwifi_band_to_radio_type((u8)bss_desc->bss_band);
+
+ if (sband->ht_cap.cap & IEEE80211_HT_CAP_SUP_WIDTH_20_40 &&
+ bss_desc->bcn_ht_oper->ht_param &
+ IEEE80211_HT_PARAM_CHAN_WIDTH_ANY)
+ SET_SECONDARYCHAN
+ (chan_list->chan_scan_param[0].radio_type,
+ (bss_desc->bcn_ht_oper->ht_param &
+ IEEE80211_HT_PARAM_CHA_SEC_OFFSET));
+
+ *buffer += struct_size(chan_list, chan_scan_param, 1);
+ ret_len += struct_size(chan_list, chan_scan_param, 1);
+ }
+
+ if (bss_desc->bcn_bss_co_2040) {
+ bss_co_2040 = (struct nxpwifi_ie_types_2040bssco *)*buffer;
+ memset(bss_co_2040, 0,
+ sizeof(struct nxpwifi_ie_types_2040bssco));
+ bss_co_2040->header.type = cpu_to_le16(WLAN_EID_BSS_COEX_2040);
+ bss_co_2040->header.len =
+ cpu_to_le16(sizeof(bss_co_2040->bss_co_2040));
+
+ memcpy((u8 *)bss_co_2040 +
+ sizeof(struct nxpwifi_ie_types_header),
+ bss_desc->bcn_bss_co_2040 +
+ sizeof(struct ieee_types_header),
+ le16_to_cpu(bss_co_2040->header.len));
+
+ *buffer += sizeof(struct nxpwifi_ie_types_2040bssco);
+ ret_len += sizeof(struct nxpwifi_ie_types_2040bssco);
+ }
+
+ if (bss_desc->bcn_ext_cap) {
+ hdr = (void *)bss_desc->bcn_ext_cap;
+ ext_cap = (struct nxpwifi_ie_types_extcap *)*buffer;
+ memset(ext_cap, 0, sizeof(struct nxpwifi_ie_types_extcap));
+ ext_cap->header.type = cpu_to_le16(WLAN_EID_EXT_CAPABILITY);
+ ext_cap->header.len = cpu_to_le16(hdr->len);
+
+ memcpy((u8 *)ext_cap->ext_capab,
+ bss_desc->bcn_ext_cap + sizeof(struct ieee_types_header),
+ le16_to_cpu(ext_cap->header.len));
+
+ if (hdr->len > 3 &&
+ ext_cap->ext_capab[3] & WLAN_EXT_CAPA4_INTERWORKING_ENABLED)
+ priv->hs2_enabled = true;
+ else
+ priv->hs2_enabled = false;
+
+ *buffer += sizeof(struct nxpwifi_ie_types_extcap) + hdr->len;
+ ret_len += sizeof(struct nxpwifi_ie_types_extcap) + hdr->len;
+ }
+
+ return ret_len;
+}
+
+/* This function checks if the given pointer is valid entry of
+ * Tx BA Stream table.
+ */
+static int
+nxpwifi_is_tx_ba_stream_ptr_valid(struct nxpwifi_private *priv,
+ struct nxpwifi_tx_ba_stream_tbl *tx_tbl_ptr)
+{
+ struct nxpwifi_tx_ba_stream_tbl *tx_ba_tsr_tbl;
+
+ list_for_each_entry(tx_ba_tsr_tbl, &priv->tx_ba_stream_tbl_ptr, list) {
+ if (tx_ba_tsr_tbl == tx_tbl_ptr)
+ return true;
+ }
+
+ return false;
+}
+
+/* This function deletes the given entry in Tx BA Stream table.
+ *
+ * The function also performs a validity check on the supplied
+ * pointer before trying to delete.
+ */
+void
+nxpwifi_11n_delete_tx_ba_stream_tbl_entry(struct nxpwifi_private *priv,
+ struct nxpwifi_tx_ba_stream_tbl *tbl)
+{
+ if (!tbl && nxpwifi_is_tx_ba_stream_ptr_valid(priv, tbl))
+ return;
+
+ nxpwifi_dbg(priv->adapter, INFO,
+ "info: tx_ba_tsr_tbl %p\n", tbl);
+
+ list_del(&tbl->list);
+
+ kfree(tbl);
+}
+
+/* This function deletes all the entries in Tx BA Stream table.
+ */
+void nxpwifi_11n_delete_all_tx_ba_stream_tbl(struct nxpwifi_private *priv)
+{
+ int i;
+ struct nxpwifi_tx_ba_stream_tbl *del_tbl_ptr, *tmp_node;
+
+ spin_lock_bh(&priv->tx_ba_stream_tbl_lock);
+ list_for_each_entry_safe(del_tbl_ptr, tmp_node,
+ &priv->tx_ba_stream_tbl_ptr, list)
+ nxpwifi_11n_delete_tx_ba_stream_tbl_entry(priv, del_tbl_ptr);
+ spin_unlock_bh(&priv->tx_ba_stream_tbl_lock);
+
+ INIT_LIST_HEAD(&priv->tx_ba_stream_tbl_ptr);
+
+ for (i = 0; i < MAX_NUM_TID; ++i)
+ priv->aggr_prio_tbl[i].ampdu_ap =
+ priv->aggr_prio_tbl[i].ampdu_user;
+}
+
+/* This function returns the pointer to an entry in BA Stream
+ * table which matches the given RA/TID pair.
+ */
+struct nxpwifi_tx_ba_stream_tbl *
+nxpwifi_get_ba_tbl(struct nxpwifi_private *priv, int tid, u8 *ra)
+{
+ struct nxpwifi_tx_ba_stream_tbl *tx_ba_tsr_tbl;
+
+ spin_lock_bh(&priv->tx_ba_stream_tbl_lock);
+ list_for_each_entry(tx_ba_tsr_tbl, &priv->tx_ba_stream_tbl_ptr, list) {
+ if (ether_addr_equal_unaligned(tx_ba_tsr_tbl->ra, ra) &&
+ tx_ba_tsr_tbl->tid == tid) {
+ spin_unlock_bh(&priv->tx_ba_stream_tbl_lock);
+ return tx_ba_tsr_tbl;
+ }
+ }
+ spin_unlock_bh(&priv->tx_ba_stream_tbl_lock);
+ return NULL;
+}
+
+/* This function creates an entry in Tx BA stream table for the
+ * given RA/TID pair.
+ */
+void nxpwifi_create_ba_tbl(struct nxpwifi_private *priv, u8 *ra, int tid,
+ enum nxpwifi_ba_status ba_status)
+{
+ struct nxpwifi_tx_ba_stream_tbl *new_node;
+ struct nxpwifi_ra_list_tbl *ra_list;
+ int tid_down;
+
+ if (!nxpwifi_get_ba_tbl(priv, tid, ra)) {
+ new_node = kzalloc(sizeof(*new_node), GFP_ATOMIC);
+ if (!new_node)
+ return;
+
+ tid_down = nxpwifi_wmm_downgrade_tid(priv, tid);
+ ra_list = nxpwifi_wmm_get_ralist_node(priv, tid_down, ra);
+ if (ra_list) {
+ ra_list->ba_status = ba_status;
+ ra_list->amsdu_in_ampdu = false;
+ }
+ INIT_LIST_HEAD(&new_node->list);
+
+ new_node->tid = tid;
+ new_node->ba_status = ba_status;
+ memcpy(new_node->ra, ra, ETH_ALEN);
+
+ spin_lock_bh(&priv->tx_ba_stream_tbl_lock);
+ list_add_tail(&new_node->list, &priv->tx_ba_stream_tbl_ptr);
+ spin_unlock_bh(&priv->tx_ba_stream_tbl_lock);
+ }
+}
+
+/* This function sends an add BA request to the given TID/RA pair.
+ */
+int nxpwifi_send_addba(struct nxpwifi_private *priv, int tid, u8 *peer_mac)
+{
+ struct host_cmd_ds_11n_addba_req add_ba_req;
+ u32 tx_win_size = priv->add_ba_param.tx_win_size;
+ static u8 dialog_tok;
+ int ret;
+ u16 block_ack_param_set;
+
+ nxpwifi_dbg(priv->adapter, CMD, "cmd: %s: tid %d\n", __func__, tid);
+
+ memset(&add_ba_req, 0, sizeof(add_ba_req));
+
+ block_ack_param_set = (u16)((tid << BLOCKACKPARAM_TID_POS) |
+ tx_win_size << BLOCKACKPARAM_WINSIZE_POS |
+ IMMEDIATE_BLOCK_ACK);
+
+ /* enable AMSDU inside AMPDU */
+ if (priv->add_ba_param.tx_amsdu &&
+ priv->aggr_prio_tbl[tid].amsdu != BA_STREAM_NOT_ALLOWED)
+ block_ack_param_set |= BLOCKACKPARAM_AMSDU_SUPP_MASK;
+
+ add_ba_req.block_ack_param_set = cpu_to_le16(block_ack_param_set);
+ add_ba_req.block_ack_tmo = cpu_to_le16((u16)priv->add_ba_param.timeout);
+
+ ++dialog_tok;
+
+ if (dialog_tok == 0)
+ dialog_tok = 1;
+
+ add_ba_req.dialog_token = dialog_tok;
+ memcpy(&add_ba_req.peer_mac_addr, peer_mac, ETH_ALEN);
+
+ /* We don't wait for the response of this command */
+ ret = nxpwifi_send_cmd(priv, HOST_CMD_11N_ADDBA_REQ,
+ 0, 0, &add_ba_req, false);
+
+ return ret;
+}
+
+/* This function sends a delete BA request to the given TID/RA pair.
+ */
+int nxpwifi_send_delba(struct nxpwifi_private *priv, int tid, u8 *peer_mac,
+ int initiator)
+{
+ struct host_cmd_ds_11n_delba delba;
+ int ret;
+ u16 del_ba_param_set;
+
+ memset(&delba, 0, sizeof(delba));
+
+ del_ba_param_set = tid << DELBA_TID_POS;
+
+ if (initiator)
+ del_ba_param_set |= IEEE80211_DELBA_PARAM_INITIATOR_MASK;
+ else
+ del_ba_param_set &= ~IEEE80211_DELBA_PARAM_INITIATOR_MASK;
+
+ delba.del_ba_param_set = cpu_to_le16(del_ba_param_set);
+ memcpy(&delba.peer_mac_addr, peer_mac, ETH_ALEN);
+
+ /* We don't wait for the response of this command */
+ ret = nxpwifi_send_cmd(priv, HOST_CMD_11N_DELBA,
+ HOST_ACT_GEN_SET, 0, &delba, false);
+
+ return ret;
+}
+
+/* This function sends delba to specific tid
+ */
+void nxpwifi_11n_delba(struct nxpwifi_private *priv, int tid)
+{
+ struct nxpwifi_rx_reorder_tbl *rx_reor_tbl_ptr;
+
+ spin_lock_bh(&priv->rx_reorder_tbl_lock);
+ list_for_each_entry(rx_reor_tbl_ptr, &priv->rx_reorder_tbl_ptr, list) {
+ if (rx_reor_tbl_ptr->tid == tid) {
+ dev_dbg(priv->adapter->dev,
+ "Send delba to tid=%d, %pM\n",
+ tid, rx_reor_tbl_ptr->ta);
+ nxpwifi_send_delba(priv, tid, rx_reor_tbl_ptr->ta, 0);
+ goto exit;
+ }
+ }
+exit:
+ spin_unlock_bh(&priv->rx_reorder_tbl_lock);
+}
+
+/* This function handles the command response of a delete BA request.
+ */
+void nxpwifi_11n_delete_ba_stream(struct nxpwifi_private *priv, u8 *del_ba)
+{
+ struct host_cmd_ds_11n_delba *cmd_del_ba =
+ (struct host_cmd_ds_11n_delba *)del_ba;
+ u16 del_ba_param_set = le16_to_cpu(cmd_del_ba->del_ba_param_set);
+ int tid;
+
+ tid = del_ba_param_set >> DELBA_TID_POS;
+
+ nxpwifi_del_ba_tbl(priv, tid, cmd_del_ba->peer_mac_addr,
+ TYPE_DELBA_RECEIVE, INITIATOR_BIT(del_ba_param_set));
+}
+
+/* This function retrieves the Rx reordering table.
+ */
+int nxpwifi_get_rx_reorder_tbl(struct nxpwifi_private *priv,
+ struct nxpwifi_ds_rx_reorder_tbl *buf)
+{
+ int i;
+ struct nxpwifi_ds_rx_reorder_tbl *rx_reo_tbl = buf;
+ struct nxpwifi_rx_reorder_tbl *rx_reorder_tbl_ptr;
+ int count = 0;
+
+ spin_lock_bh(&priv->rx_reorder_tbl_lock);
+ list_for_each_entry(rx_reorder_tbl_ptr, &priv->rx_reorder_tbl_ptr,
+ list) {
+ rx_reo_tbl->tid = (u16)rx_reorder_tbl_ptr->tid;
+ memcpy(rx_reo_tbl->ta, rx_reorder_tbl_ptr->ta, ETH_ALEN);
+ rx_reo_tbl->start_win = rx_reorder_tbl_ptr->start_win;
+ rx_reo_tbl->win_size = rx_reorder_tbl_ptr->win_size;
+ for (i = 0; i < rx_reorder_tbl_ptr->win_size; ++i) {
+ if (rx_reorder_tbl_ptr->rx_reorder_ptr[i])
+ rx_reo_tbl->buffer[i] = true;
+ else
+ rx_reo_tbl->buffer[i] = false;
+ }
+ rx_reo_tbl++;
+ count++;
+
+ if (count >= NXPWIFI_MAX_RX_BASTREAM_SUPPORTED)
+ break;
+ }
+ spin_unlock_bh(&priv->rx_reorder_tbl_lock);
+
+ return count;
+}
+
+/* This function retrieves the Tx BA stream table.
+ */
+int nxpwifi_get_tx_ba_stream_tbl(struct nxpwifi_private *priv,
+ struct nxpwifi_ds_tx_ba_stream_tbl *buf)
+{
+ struct nxpwifi_tx_ba_stream_tbl *tx_ba_tsr_tbl;
+ struct nxpwifi_ds_tx_ba_stream_tbl *rx_reo_tbl = buf;
+ int count = 0;
+
+ spin_lock_bh(&priv->tx_ba_stream_tbl_lock);
+ list_for_each_entry(tx_ba_tsr_tbl, &priv->tx_ba_stream_tbl_ptr, list) {
+ rx_reo_tbl->tid = (u16)tx_ba_tsr_tbl->tid;
+ nxpwifi_dbg(priv->adapter, DATA, "data: %s tid=%d\n",
+ __func__, rx_reo_tbl->tid);
+ memcpy(rx_reo_tbl->ra, tx_ba_tsr_tbl->ra, ETH_ALEN);
+ rx_reo_tbl->amsdu = tx_ba_tsr_tbl->amsdu;
+ rx_reo_tbl++;
+ count++;
+ if (count >= NXPWIFI_MAX_TX_BASTREAM_SUPPORTED)
+ break;
+ }
+ spin_unlock_bh(&priv->tx_ba_stream_tbl_lock);
+
+ return count;
+}
+
+/* This function retrieves the entry for specific tx BA stream table by RA and
+ * deletes it.
+ */
+void nxpwifi_del_tx_ba_stream_tbl_by_ra(struct nxpwifi_private *priv, u8 *ra)
+{
+ struct nxpwifi_tx_ba_stream_tbl *tbl, *tmp;
+
+ if (!ra)
+ return;
+
+ spin_lock_bh(&priv->tx_ba_stream_tbl_lock);
+ list_for_each_entry_safe(tbl, tmp, &priv->tx_ba_stream_tbl_ptr, list)
+ if (!memcmp(tbl->ra, ra, ETH_ALEN))
+ nxpwifi_11n_delete_tx_ba_stream_tbl_entry(priv, tbl);
+ spin_unlock_bh(&priv->tx_ba_stream_tbl_lock);
+}
+
+/* This function initializes the BlockACK setup information for given
+ * nxpwifi_private structure.
+ */
+void nxpwifi_set_ba_params(struct nxpwifi_private *priv)
+{
+ priv->add_ba_param.timeout = NXPWIFI_DEFAULT_BLOCK_ACK_TIMEOUT;
+
+ if (GET_BSS_ROLE(priv) == NXPWIFI_BSS_ROLE_UAP) {
+ priv->add_ba_param.tx_win_size =
+ NXPWIFI_UAP_AMPDU_DEF_TXWINSIZE;
+ priv->add_ba_param.rx_win_size =
+ NXPWIFI_UAP_AMPDU_DEF_RXWINSIZE;
+ } else {
+ priv->add_ba_param.tx_win_size =
+ NXPWIFI_STA_AMPDU_DEF_TXWINSIZE;
+ priv->add_ba_param.rx_win_size =
+ NXPWIFI_STA_AMPDU_DEF_RXWINSIZE;
+ }
+
+ priv->add_ba_param.tx_amsdu = true;
+ priv->add_ba_param.rx_amsdu = true;
+}
+
+u8 nxpwifi_get_sec_chan_offset(int chan)
+{
+ u8 sec_offset;
+
+ switch (chan) {
+ case 36:
+ case 44:
+ case 52:
+ case 60:
+ case 100:
+ case 108:
+ case 116:
+ case 124:
+ case 132:
+ case 140:
+ case 149:
+ case 157:
+ sec_offset = IEEE80211_HT_PARAM_CHA_SEC_ABOVE;
+ break;
+ case 40:
+ case 48:
+ case 56:
+ case 64:
+ case 104:
+ case 112:
+ case 120:
+ case 128:
+ case 136:
+ case 144:
+ case 153:
+ case 161:
+ sec_offset = IEEE80211_HT_PARAM_CHA_SEC_BELOW;
+ break;
+ case 165:
+ default:
+ sec_offset = IEEE80211_HT_PARAM_CHA_SEC_NONE;
+ break;
+ }
+
+ return sec_offset;
+}
+
+/* This function will send DELBA to entries in the priv's
+ * Tx BA stream table
+ */
+static void
+nxpwifi_send_delba_txbastream_tbl(struct nxpwifi_private *priv, u8 tid)
+{
+ struct nxpwifi_adapter *adapter = priv->adapter;
+ struct nxpwifi_tx_ba_stream_tbl *tx_ba_stream_tbl_ptr;
+
+ list_for_each_entry(tx_ba_stream_tbl_ptr,
+ &priv->tx_ba_stream_tbl_ptr, list) {
+ if (tx_ba_stream_tbl_ptr->ba_status == BA_SETUP_COMPLETE) {
+ if (tid == tx_ba_stream_tbl_ptr->tid) {
+ dev_dbg(adapter->dev,
+ "Tx:Send delba to tid=%d, %pM\n", tid,
+ tx_ba_stream_tbl_ptr->ra);
+ nxpwifi_send_delba(priv,
+ tx_ba_stream_tbl_ptr->tid,
+ tx_ba_stream_tbl_ptr->ra, 1);
+ return;
+ }
+ }
+ }
+}
+
+/* This function updates all the tx_win_size
+ */
+void nxpwifi_update_ampdu_txwinsize(struct nxpwifi_adapter *adapter)
+{
+ u8 i, j;
+ u32 tx_win_size;
+ struct nxpwifi_private *priv;
+
+ for (i = 0; i < adapter->priv_num; i++) {
+ if (!adapter->priv[i])
+ continue;
+ priv = adapter->priv[i];
+ tx_win_size = priv->add_ba_param.tx_win_size;
+
+ if (priv->bss_type == NXPWIFI_BSS_TYPE_STA)
+ priv->add_ba_param.tx_win_size =
+ NXPWIFI_STA_AMPDU_DEF_TXWINSIZE;
+
+ if (priv->bss_type == NXPWIFI_BSS_TYPE_UAP)
+ priv->add_ba_param.tx_win_size =
+ NXPWIFI_UAP_AMPDU_DEF_TXWINSIZE;
+
+ if (adapter->coex_win_size) {
+ if (adapter->coex_tx_win_size)
+ priv->add_ba_param.tx_win_size =
+ adapter->coex_tx_win_size;
+ }
+
+ if (tx_win_size != priv->add_ba_param.tx_win_size) {
+ if (!priv->media_connected)
+ continue;
+ for (j = 0; j < MAX_NUM_TID; j++)
+ nxpwifi_send_delba_txbastream_tbl(priv, j);
+ }
+ }
+}
Signed-off-by: David Lin <yu-hao.lin@nxp.com> --- drivers/net/wireless/nxp/nxpwifi/11n.c | 851 +++++++++++++++++++++++++ 1 file changed, 851 insertions(+) create mode 100644 drivers/net/wireless/nxp/nxpwifi/11n.c