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iwlwifi: mvm: support new beacon template command 

Support a new version of the beacon template command. This replaces v8
of the command, which was missing the rate code.  Also, export rate
decision logic to a separate function.

Signed-off-by: Haim Dreyfuss <haim.dreyfuss@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
This commit is contained in:
Haim Dreyfuss 2017-06-12 14:59:02 +03:00 committed by Luca Coelho
parent 944eafc255
commit 6ca33f8bae
3 changed files with 47 additions and 18 deletions
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17
drivers/net/wireless/intel/iwlwifi/fw/api/tx.h
View File

@ -786,13 +786,20 @@ struct iwl_mac_beacon_cmd_v7 {
struct ieee80211_hdr frame[0];
} __packed; /* BEACON_TEMPLATE_CMD_API_S_VER_7 */
enum iwl_mac_beacon_flags {
IWL_MAC_BEACON_CCK = BIT(8),
IWL_MAC_BEACON_ANT_A = BIT(9),
IWL_MAC_BEACON_ANT_B = BIT(10),
IWL_MAC_BEACON_ANT_C = BIT(11),
};
/**
* struct iwl_mac_beacon_cmd - beacon template command with offloaded CSA
* @byte_cnt: byte count of the beacon frame
* @flags: for future use
* @byte_cnt: byte count of the beacon frame.
* @flags: least significant byte for rate code. The most significant byte
* is &enum iwl_mac_beacon_flags.
* @reserved: reserved
* @template_id: currently equal to the mac context id of the coresponding
* mac.
* @template_id: currently equal to the mac context id of the coresponding mac.
* @tim_idx: the offset of the tim IE in the beacon
* @tim_size: the length of the tim IE
* @ecsa_offset: offset to the ECSA IE if present
@ -809,7 +816,7 @@ struct iwl_mac_beacon_cmd {
__le32 ecsa_offset;
__le32 csa_offset;
struct ieee80211_hdr frame[0];
} __packed; /* BEACON_TEMPLATE_CMD_API_S_VER_8 */
} __packed; /* BEACON_TEMPLATE_CMD_API_S_VER_9 */
struct iwl_beacon_notif {
struct iwl_mvm_tx_resp beacon_notify_hdr;

1
drivers/net/wireless/intel/iwlwifi/fw/file.h
View File

@ -260,6 +260,7 @@ enum iwl_ucode_tlv_api {
IWL_UCODE_TLV_API_STA_TYPE = (__force iwl_ucode_tlv_api_t)30,
IWL_UCODE_TLV_API_NAN2_VER2 = (__force iwl_ucode_tlv_api_t)31,
/* API Set 1 */
IWL_UCODE_TLV_API_NEW_BEACON_TEMPLATE = (__force iwl_ucode_tlv_api_t)34,
IWL_UCODE_TLV_API_NEW_RX_STATS = (__force iwl_ucode_tlv_api_t)35,
NUM_IWL_UCODE_TLV_API

47
drivers/net/wireless/intel/iwlwifi/mvm/mac-ctxt.c
View File

@ -923,6 +923,19 @@ static u32 iwl_mvm_find_ie_offset(u8 *beacon, u8 eid, u32 frame_size)
return ie - beacon;
}
static u8 iwl_mvm_mac_ctxt_get_lowest_rate(struct ieee80211_tx_info *info,
struct ieee80211_vif *vif)
{
u8 rate;
if (info->band == NL80211_BAND_5GHZ || vif->p2p)
rate = IWL_FIRST_OFDM_RATE;
else
rate = IWL_FIRST_CCK_RATE;
return rate;
}
static void iwl_mvm_mac_ctxt_set_tx(struct iwl_mvm *mvm,
struct ieee80211_vif *vif,
struct sk_buff *beacon,
@ -930,7 +943,8 @@ static void iwl_mvm_mac_ctxt_set_tx(struct iwl_mvm *mvm,
{
struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
struct ieee80211_tx_info *info;
u32 rate, tx_flags;
u8 rate;
u32 tx_flags;
info = IEEE80211_SKB_CB(beacon);
@ -955,14 +969,12 @@ static void iwl_mvm_mac_ctxt_set_tx(struct iwl_mvm *mvm,
cpu_to_le32(BIT(mvm->mgmt_last_antenna_idx) <<
RATE_MCS_ANT_POS);
if (info->band == NL80211_BAND_5GHZ || vif->p2p) {
rate = IWL_FIRST_OFDM_RATE;
} else {
rate = IWL_FIRST_CCK_RATE;
tx->rate_n_flags |= cpu_to_le32(RATE_MCS_CCK_MSK);
}
rate = iwl_mvm_mac_ctxt_get_lowest_rate(info, vif);
tx->rate_n_flags |= cpu_to_le32(iwl_mvm_mac80211_idx_to_hwrate(rate));
if (rate == IWL_FIRST_CCK_RATE)
tx->rate_n_flags |= cpu_to_le32(RATE_MCS_CCK_MSK);
}
static int iwl_mvm_mac_ctxt_send_beacon_cmd(struct iwl_mvm *mvm,
@ -1033,19 +1045,27 @@ static int iwl_mvm_mac_ctxt_send_beacon_v7(struct iwl_mvm *mvm,
sizeof(beacon_cmd));
}
static int iwl_mvm_mac_ctxt_send_beacon_v8(struct iwl_mvm *mvm,
static int iwl_mvm_mac_ctxt_send_beacon_v9(struct iwl_mvm *mvm,
struct ieee80211_vif *vif,
struct sk_buff *beacon)
{
struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
struct ieee80211_tx_info *info = IEEE80211_SKB_CB(beacon);
struct iwl_mac_beacon_cmd beacon_cmd = {};
u8 rate = iwl_mvm_mac_ctxt_get_lowest_rate(info, vif);
u16 flags;
flags = iwl_mvm_mac80211_idx_to_hwrate(rate);
if (rate == IWL_FIRST_CCK_RATE)
flags |= IWL_MAC_BEACON_CCK;
beacon_cmd.flags = cpu_to_le16(flags);
beacon_cmd.byte_cnt = cpu_to_le16((u16)beacon->len);
beacon_cmd.template_id = cpu_to_le32((u32)mvmvif->id);
if (vif->type == NL80211_IFTYPE_AP)
iwl_mvm_mac_ctxt_set_tim(mvm,
&beacon_cmd.tim_idx,
iwl_mvm_mac_ctxt_set_tim(mvm, &beacon_cmd.tim_idx,
&beacon_cmd.tim_size,
beacon->data, beacon->len);
@ -1073,10 +1093,11 @@ static int iwl_mvm_mac_ctxt_send_beacon(struct iwl_mvm *mvm,
IWL_UCODE_TLV_CAPA_CSA_AND_TBTT_OFFLOAD))
return iwl_mvm_mac_ctxt_send_beacon_v6(mvm, vif, beacon);
if (!iwl_mvm_has_new_tx_api(mvm))
return iwl_mvm_mac_ctxt_send_beacon_v7(mvm, vif, beacon);
if (fw_has_api(&mvm->fw->ucode_capa,
IWL_UCODE_TLV_API_NEW_BEACON_TEMPLATE))
return iwl_mvm_mac_ctxt_send_beacon_v9(mvm, vif, beacon);
return iwl_mvm_mac_ctxt_send_beacon_v8(mvm, vif, beacon);
return iwl_mvm_mac_ctxt_send_beacon_v7(mvm, vif, beacon);
}
/* The beacon template for the AP/GO/IBSS has changed and needs update */