/* TODO: complete documentation for try_cnt and btkill_cnt */
/**
- * struct iwl_tx_cmd_v6 - TX command struct to FW
- * ( TX_CMD = 0x1c )
+ * struct iwl_tx_cmd_v6_params - parameters of the TX
+ *
* @len: in bytes of the payload, see below for details
* @offload_assist: TX offload configuration
* @tx_flags: combination of TX_CMD_FLG_*, see &enum iwl_tx_flags
* @tid_tspec: TID/tspec
* @pm_frame_timeout: PM TX frame timeout
* @reserved4: reserved
- * @payload: payload (same as @hdr)
- * @hdr: 802.11 header (same as @payload)
*
* The byte count (both len and next_frame_len) includes MAC header
* (24/26/30/32 bytes)
* It does not include post-MAC padding, i.e.,
* MIC (CCM) 8 bytes, ICV (WEP/TKIP/CKIP) 4 bytes, CRC 4 bytes.
* Range of len: 14-2342 bytes.
- *
- * After the struct fields the MAC header is placed, plus any padding,
- * and then the actial payload.
*/
-struct iwl_tx_cmd_v6 {
+struct iwl_tx_cmd_v6_params {
__le16 len;
__le16 offload_assist;
__le32 tx_flags;
u8 tid_tspec;
__le16 pm_frame_timeout;
__le16 reserved4;
- union {
- DECLARE_FLEX_ARRAY(u8, payload);
- DECLARE_FLEX_ARRAY(struct ieee80211_hdr, hdr);
- };
+} __packed; /* TX_CMD_API_S_VER_6 */
+
+/**
+ * struct iwl_tx_cmd_v6 - TX command struct to FW
+ * ( TX_CMD = 0x1c )
+ * @params: parameters of the TX, see &struct iwl_tx_cmd_v6_tx_params
+ * @hdr: 802.11 header
+ *
+ * After ¶ms, the MAC header is placed, plus any padding,
+ * and then the actual payload.
+ */
+struct iwl_tx_cmd_v6 {
+ struct iwl_tx_cmd_v6_params params;
+ struct ieee80211_hdr hdr[];
} __packed; /* TX_CMD_API_S_VER_6 */
struct iwl_dram_sec_info {
* @frame: the template of the beacon frame
*/
struct iwl_mac_beacon_cmd_v6 {
- struct iwl_tx_cmd_v6 tx;
+ struct iwl_tx_cmd_v6_params tx;
__le32 template_id;
__le32 tim_idx;
__le32 tim_size;
* @frame: the template of the beacon frame
*/
struct iwl_mac_beacon_cmd_v7 {
- struct iwl_tx_cmd_v6 tx;
+ struct iwl_tx_cmd_v6_params tx;
__le32 template_id;
__le32 tim_idx;
__le32 tim_size;
* Sets most of the Tx cmd's fields
*/
void iwl_mvm_set_tx_cmd(struct iwl_mvm *mvm, struct sk_buff *skb,
- struct iwl_tx_cmd_v6 *tx_cmd,
+ struct iwl_tx_cmd_v6_params *tx_cmd_params,
struct ieee80211_tx_info *info, u8 sta_id)
{
struct ieee80211_hdr *hdr = (void *)skb->data;
__le16 fc = hdr->frame_control;
- u32 tx_flags = le32_to_cpu(tx_cmd->tx_flags);
+ u32 tx_flags = le32_to_cpu(tx_cmd_params->tx_flags);
u32 len = skb->len + FCS_LEN;
bool amsdu = false;
u8 ac;
if (ieee80211_is_data_qos(fc)) {
u8 *qc = ieee80211_get_qos_ctl(hdr);
- tx_cmd->tid_tspec = qc[0] & 0xf;
+ tx_cmd_params->tid_tspec = qc[0] & 0xf;
tx_flags &= ~TX_CMD_FLG_SEQ_CTL;
amsdu = *qc & IEEE80211_QOS_CTL_A_MSDU_PRESENT;
} else if (ieee80211_is_back_req(fc)) {
u16 ssn = le16_to_cpu(bar->start_seq_num);
tx_flags |= TX_CMD_FLG_ACK | TX_CMD_FLG_BAR;
- tx_cmd->tid_tspec = (control &
+ tx_cmd_params->tid_tspec = (control &
IEEE80211_BAR_CTRL_TID_INFO_MASK) >>
IEEE80211_BAR_CTRL_TID_INFO_SHIFT;
- WARN_ON_ONCE(tx_cmd->tid_tspec >= IWL_MAX_TID_COUNT);
- iwl_mvm_bar_check_trigger(mvm, bar->ra, tx_cmd->tid_tspec,
+ WARN_ON_ONCE(tx_cmd_params->tid_tspec >= IWL_MAX_TID_COUNT);
+ iwl_mvm_bar_check_trigger(mvm, bar->ra, tx_cmd_params->tid_tspec,
ssn);
} else {
if (ieee80211_is_data(fc))
- tx_cmd->tid_tspec = IWL_TID_NON_QOS;
+ tx_cmd_params->tid_tspec = IWL_TID_NON_QOS;
else
- tx_cmd->tid_tspec = IWL_MAX_TID_COUNT;
+ tx_cmd_params->tid_tspec = IWL_MAX_TID_COUNT;
if (info->flags & IEEE80211_TX_CTL_ASSIGN_SEQ)
tx_flags |= TX_CMD_FLG_SEQ_CTL;
}
/* Default to 0 (BE) when tid_spec is set to IWL_MAX_TID_COUNT */
- if (tx_cmd->tid_tspec < IWL_MAX_TID_COUNT)
- ac = tid_to_mac80211_ac[tx_cmd->tid_tspec];
+ if (tx_cmd_params->tid_tspec < IWL_MAX_TID_COUNT)
+ ac = tid_to_mac80211_ac[tx_cmd_params->tid_tspec];
else
ac = tid_to_mac80211_ac[0];
if (ieee80211_is_mgmt(fc)) {
if (ieee80211_is_assoc_req(fc) || ieee80211_is_reassoc_req(fc))
- tx_cmd->pm_frame_timeout = cpu_to_le16(PM_FRAME_ASSOC);
+ tx_cmd_params->pm_frame_timeout = cpu_to_le16(PM_FRAME_ASSOC);
else if (ieee80211_is_action(fc))
- tx_cmd->pm_frame_timeout = cpu_to_le16(PM_FRAME_NONE);
+ tx_cmd_params->pm_frame_timeout = cpu_to_le16(PM_FRAME_NONE);
else
- tx_cmd->pm_frame_timeout = cpu_to_le16(PM_FRAME_MGMT);
+ tx_cmd_params->pm_frame_timeout = cpu_to_le16(PM_FRAME_MGMT);
/* The spec allows Action frames in A-MPDU, we don't support
* it
*/
WARN_ON_ONCE(info->flags & IEEE80211_TX_CTL_AMPDU);
} else if (info->control.flags & IEEE80211_TX_CTRL_PORT_CTRL_PROTO) {
- tx_cmd->pm_frame_timeout = cpu_to_le16(PM_FRAME_MGMT);
+ tx_cmd_params->pm_frame_timeout = cpu_to_le16(PM_FRAME_MGMT);
} else {
- tx_cmd->pm_frame_timeout = cpu_to_le16(PM_FRAME_NONE);
+ tx_cmd_params->pm_frame_timeout = cpu_to_le16(PM_FRAME_NONE);
}
if (ieee80211_is_data(fc) && len > mvm->rts_threshold &&
ieee80211_action_contains_tpc(skb))
tx_flags |= TX_CMD_FLG_WRITE_TX_POWER;
- tx_cmd->tx_flags = cpu_to_le32(tx_flags);
+ tx_cmd_params->tx_flags = cpu_to_le32(tx_flags);
/* Total # bytes to be transmitted - PCIe code will adjust for A-MSDU */
- tx_cmd->len = cpu_to_le16((u16)skb->len);
- tx_cmd->life_time = cpu_to_le32(TX_CMD_LIFE_TIME_INFINITE);
- tx_cmd->sta_id = sta_id;
+ tx_cmd_params->len = cpu_to_le16((u16)skb->len);
+ tx_cmd_params->life_time = cpu_to_le32(TX_CMD_LIFE_TIME_INFINITE);
+ tx_cmd_params->sta_id = sta_id;
- tx_cmd->offload_assist =
+ tx_cmd_params->offload_assist =
cpu_to_le16(iwl_mvm_tx_csum(mvm, skb, info, amsdu));
}
/*
* Sets the fields in the Tx cmd that are rate related
*/
-void iwl_mvm_set_tx_cmd_rate(struct iwl_mvm *mvm, struct iwl_tx_cmd_v6 *tx_cmd,
- struct ieee80211_tx_info *info,
- struct ieee80211_sta *sta, __le16 fc)
+void iwl_mvm_set_tx_cmd_rate(struct iwl_mvm *mvm,
+ struct iwl_tx_cmd_v6_params *tx_cmd_params,
+ struct ieee80211_tx_info *info,
+ struct ieee80211_sta *sta, __le16 fc)
{
/* Set retry limit on RTS packets */
- tx_cmd->rts_retry_limit = IWL_RTS_DFAULT_RETRY_LIMIT;
+ tx_cmd_params->rts_retry_limit = IWL_RTS_DFAULT_RETRY_LIMIT;
/* Set retry limit on DATA packets and Probe Responses*/
if (ieee80211_is_probe_resp(fc)) {
- tx_cmd->data_retry_limit = IWL_MGMT_DFAULT_RETRY_LIMIT;
- tx_cmd->rts_retry_limit =
- min(tx_cmd->data_retry_limit, tx_cmd->rts_retry_limit);
+ tx_cmd_params->data_retry_limit = IWL_MGMT_DFAULT_RETRY_LIMIT;
+ tx_cmd_params->rts_retry_limit =
+ min(tx_cmd_params->data_retry_limit, tx_cmd_params->rts_retry_limit);
} else if (ieee80211_is_back_req(fc)) {
- tx_cmd->data_retry_limit = IWL_BAR_DFAULT_RETRY_LIMIT;
+ tx_cmd_params->data_retry_limit = IWL_BAR_DFAULT_RETRY_LIMIT;
} else {
- tx_cmd->data_retry_limit = IWL_DEFAULT_TX_RETRY;
+ tx_cmd_params->data_retry_limit = IWL_DEFAULT_TX_RETRY;
}
/*
struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(sta);
if (mvmsta->sta_state >= IEEE80211_STA_AUTHORIZED) {
- tx_cmd->initial_rate_index = 0;
- tx_cmd->tx_flags |= cpu_to_le32(TX_CMD_FLG_STA_RATE);
+ tx_cmd_params->initial_rate_index = 0;
+ tx_cmd_params->tx_flags |= cpu_to_le32(TX_CMD_FLG_STA_RATE);
return;
}
} else if (ieee80211_is_back_req(fc)) {
- tx_cmd->tx_flags |=
+ tx_cmd_params->tx_flags |=
cpu_to_le32(TX_CMD_FLG_ACK | TX_CMD_FLG_BAR);
}
/* Set the rate in the TX cmd */
- tx_cmd->rate_n_flags = iwl_mvm_get_tx_rate_n_flags(mvm, info, sta, fc);
+ tx_cmd_params->rate_n_flags = iwl_mvm_get_tx_rate_n_flags(mvm, info, sta, fc);
}
static inline void iwl_mvm_set_tx_cmd_pn(struct ieee80211_tx_info *info,
*/
static void iwl_mvm_set_tx_cmd_crypto(struct iwl_mvm *mvm,
struct ieee80211_tx_info *info,
- struct iwl_tx_cmd_v6 *tx_cmd,
+ struct iwl_tx_cmd_v6_params *tx_cmd_params,
struct sk_buff *skb_frag,
int hdrlen)
{
switch (keyconf->cipher) {
case WLAN_CIPHER_SUITE_CCMP:
- iwl_mvm_set_tx_cmd_ccmp(info, tx_cmd);
+ iwl_mvm_set_tx_cmd_ccmp(info, tx_cmd_params);
iwl_mvm_set_tx_cmd_pn(info, crypto_hdr);
break;
case WLAN_CIPHER_SUITE_TKIP:
- tx_cmd->sec_ctl = TX_CMD_SEC_TKIP;
+ tx_cmd_params->sec_ctl = TX_CMD_SEC_TKIP;
pn = atomic64_inc_return(&keyconf->tx_pn);
ieee80211_tkip_add_iv(crypto_hdr, keyconf, pn);
- ieee80211_get_tkip_p2k(keyconf, skb_frag, tx_cmd->key);
+ ieee80211_get_tkip_p2k(keyconf, skb_frag, tx_cmd_params->key);
break;
case WLAN_CIPHER_SUITE_WEP104:
- tx_cmd->sec_ctl |= TX_CMD_SEC_KEY128;
+ tx_cmd_params->sec_ctl |= TX_CMD_SEC_KEY128;
fallthrough;
case WLAN_CIPHER_SUITE_WEP40:
- tx_cmd->sec_ctl |= TX_CMD_SEC_WEP |
+ tx_cmd_params->sec_ctl |= TX_CMD_SEC_WEP |
((keyconf->keyidx << TX_CMD_SEC_WEP_KEY_IDX_POS) &
TX_CMD_SEC_WEP_KEY_IDX_MSK);
- memcpy(&tx_cmd->key[3], keyconf->key, keyconf->keylen);
+ memcpy(&tx_cmd_params->key[3], keyconf->key, keyconf->keylen);
break;
case WLAN_CIPHER_SUITE_GCMP:
case WLAN_CIPHER_SUITE_GCMP_256:
* one.
* Need to handle this.
*/
- tx_cmd->sec_ctl |= type | TX_CMD_SEC_KEY_FROM_TABLE;
- tx_cmd->key[0] = keyconf->hw_key_idx;
+ tx_cmd_params->sec_ctl |= type | TX_CMD_SEC_KEY_FROM_TABLE;
+ tx_cmd_params->key[0] = keyconf->hw_key_idx;
iwl_mvm_set_tx_cmd_pn(info, crypto_hdr);
break;
default:
- tx_cmd->sec_ctl |= TX_CMD_SEC_EXT;
+ tx_cmd_params->sec_ctl |= TX_CMD_SEC_EXT;
}
}
tx_cmd = (struct iwl_tx_cmd_v6 *)dev_cmd->payload;
if (info->control.hw_key)
- iwl_mvm_set_tx_cmd_crypto(mvm, info, tx_cmd, skb, hdrlen);
+ iwl_mvm_set_tx_cmd_crypto(mvm, info, &tx_cmd->params, skb, hdrlen);
- iwl_mvm_set_tx_cmd(mvm, skb, tx_cmd, info, sta_id);
+ iwl_mvm_set_tx_cmd(mvm, skb, &tx_cmd->params, info, sta_id);
- iwl_mvm_set_tx_cmd_rate(mvm, tx_cmd, info, sta, hdr->frame_control);
+ iwl_mvm_set_tx_cmd_rate(mvm, &tx_cmd->params, info, sta, hdr->frame_control);
/* Copy MAC header from skb into command buffer */
iwl_mvm_copy_hdr(tx_cmd->hdr, hdr, hdrlen, addr3_override);
* have in the MPDU by themselves, but that we duplicate into
* all the different MSDUs inside the A-MSDU.
*/
- le16_add_cpu(&tx_cmd->len, -snap_ip_tcp_hdrlen);
+ le16_add_cpu(&tx_cmd->params.len, -snap_ip_tcp_hdrlen);
tso_start(skb, &tso);
trace_iwlwifi_dev_tx_tb(trans->dev, skb, start_hdr,
hdr_tb_phys, hdr_tb_len);
/* add this subframe's headers' length to the tx_cmd */
- le16_add_cpu(&tx_cmd->len, pos_hdr - subf_hdrs_start);
+ le16_add_cpu(&tx_cmd->params.len, pos_hdr - subf_hdrs_start);
/* prepare the start_hdr for the next subframe */
start_hdr = pos_hdr;
__le16 bc_ent;
struct iwl_device_tx_cmd *dev_cmd = txq->entries[txq->write_ptr].cmd;
struct iwl_tx_cmd_v6 *tx_cmd = (void *)dev_cmd->payload;
- u8 sta_id = tx_cmd->sta_id;
+ u8 sta_id = tx_cmd->params.sta_id;
scd_bc_tbl = trans_pcie->txqs.scd_bc_tbls.addr;
- sec_ctl = tx_cmd->sec_ctl;
+ sec_ctl = tx_cmd->params.sec_ctl;
switch (sec_ctl & TX_CMD_SEC_MSK) {
case TX_CMD_SEC_CCM:
tb0_phys = iwl_txq_get_first_tb_dma(txq, txq->write_ptr);
scratch_phys = tb0_phys + sizeof(struct iwl_cmd_header) +
- offsetof(struct iwl_tx_cmd_v6, scratch);
+ offsetof(struct iwl_tx_cmd_v6_params, scratch);
- tx_cmd->dram_lsb_ptr = cpu_to_le32(scratch_phys);
- tx_cmd->dram_msb_ptr = iwl_get_dma_hi_addr(scratch_phys);
+ tx_cmd->params.dram_lsb_ptr = cpu_to_le32(scratch_phys);
+ tx_cmd->params.dram_msb_ptr = iwl_get_dma_hi_addr(scratch_phys);
/* Set up first empty entry in queue's array of Tx/cmd buffers */
out_meta = &txq->entries[txq->write_ptr].meta;
tb1_len = ALIGN(len, 4);
/* Tell NIC about any 2-byte padding after MAC header */
if (tb1_len != len)
- tx_cmd->tx_flags |= cpu_to_le32(TX_CMD_FLG_MH_PAD);
+ tx_cmd->params.tx_flags |= cpu_to_le32(TX_CMD_FLG_MH_PAD);
} else {
tb1_len = len;
}
/* there must be data left over for TB1 or this code must be changed */
BUILD_BUG_ON(sizeof(struct iwl_tx_cmd_v6) < IWL_FIRST_TB_SIZE);
BUILD_BUG_ON(sizeof(struct iwl_cmd_header) +
- offsetofend(struct iwl_tx_cmd_v6, scratch) >
+ offsetofend(struct iwl_tx_cmd_v6_params, scratch) >
IWL_FIRST_TB_SIZE);
/* map the data for TB1 */
tfd = iwl_txq_get_tfd(trans, txq, txq->write_ptr);
/* Set up entry for this TFD in Tx byte-count array */
- iwl_txq_gen1_update_byte_cnt_tbl(trans, txq, le16_to_cpu(tx_cmd->len),
+ iwl_txq_gen1_update_byte_cnt_tbl(trans, txq, le16_to_cpu(tx_cmd->params.len),
iwl_txq_gen1_tfd_get_num_tbs(tfd));
wait_write_ptr = ieee80211_has_morefrags(fc);
WARN_ON(read_ptr >= TFD_QUEUE_SIZE_MAX);
if (txq_id != trans->conf.cmd_queue)
- sta_id = tx_cmd->sta_id;
+ sta_id = tx_cmd->params.sta_id;
bc_ent = cpu_to_le16(1 | (sta_id << 12));