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iwlwifi: mvm: update firmware of VHT MU-MIMO groups status on restart 

The firmware handles the VHT MU-MIMO group data on its own.
However, on HW restart (and future sniffer mode) the driver
shall update the firmware on the VHT MU-MIMO group membership
status.

Signed-off-by: Sara Sharon <sara.sharon@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
This commit is contained in:
Sara Sharon 2015-11-15 11:11:59 +02:00 committed by Emmanuel Grumbach
parent e48c947f03
commit a07a8f3702
2 changed files with 46 additions and 0 deletions
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18
drivers/net/wireless/intel/iwlwifi/mvm/fw-api.h
View File

@ -285,6 +285,10 @@ enum iwl_phy_ops_subcmd_ids {
DTS_MEASUREMENT_NOTIF_WIDE = 0xFF,
};
enum iwl_data_path_subcmd_ids {
UPDATE_MU_GROUPS_CMD = 0x1,
};
enum iwl_prot_offload_subcmd_ids {
STORED_BEACON_NTF = 0xFF,
};
@ -294,6 +298,7 @@ enum {
LEGACY_GROUP = 0x0,
LONG_GROUP = 0x1,
PHY_OPS_GROUP = 0x4,
DATA_PATH_GROUP = 0x5,
PROT_OFFLOAD_GROUP = 0xb,
};
@ -1923,6 +1928,19 @@ struct iwl_shared_mem_cfg {
__le32 page_buff_size;
} __packed; /* SHARED_MEM_ALLOC_API_S_VER_1 */
/**
* VHT MU-MIMO group configuration
*
* @membership_status: a bitmap of MU groups
* @user_position:the position of station in a group. If the station is in the
* group then bits (group * 2) is the position -1
*/
struct iwl_mu_group_mgmt_cmd {
__le32 reserved;
__le32 membership_status[2];
__le32 user_position[4];
} __packed; /* MU_GROUP_ID_MNG_TABLE_API_S_VER_1 */
#define MAX_STORED_BEACON_SIZE 600
/**

28
drivers/net/wireless/intel/iwlwifi/mvm/mac80211.c
View File

@ -1762,6 +1762,22 @@ static inline int iwl_mvm_configure_bcast_filter(struct iwl_mvm *mvm)
}
#endif
static int iwl_mvm_update_mu_groups(struct iwl_mvm *mvm,
struct ieee80211_vif *vif)
{
struct iwl_mu_group_mgmt_cmd cmd = {};
memcpy(cmd.membership_status, vif->bss_conf.mu_group.membership,
WLAN_MEMBERSHIP_LEN);
memcpy(cmd.user_position, vif->bss_conf.mu_group.position,
WLAN_USER_POSITION_LEN);
return iwl_mvm_send_cmd_pdu(mvm,
WIDE_ID(DATA_PATH_GROUP,
UPDATE_MU_GROUPS_CMD),
0, sizeof(cmd), &cmd);
}
static void iwl_mvm_bss_info_changed_station(struct iwl_mvm *mvm,
struct ieee80211_vif *vif,
struct ieee80211_bss_conf *bss_conf,
@ -1870,6 +1886,18 @@ static void iwl_mvm_bss_info_changed_station(struct iwl_mvm *mvm,
vif->addr);
}
/*
* The firmware tracks the MU-MIMO group on its own.
* However, on HW restart we should restore this data
*/
if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status) &&
changes & BSS_CHANGED_MU_GROUPS) {
ret = iwl_mvm_update_mu_groups(mvm, vif);
if (ret)
IWL_ERR(mvm,
"failed to update VHT MU_MIMO groups\n");
}
iwl_mvm_recalc_multicast(mvm);
iwl_mvm_configure_bcast_filter(mvm);