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iwlwifi: mvm: keep connection to AP after WoWLAN

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Until now, after WoWLAN, we weren't able to keep the
connection to the AP because the firmware didn't give
us the right information. Since the firmware API has
been changed to include all the information we need,
change the driver to work with the new API (if it is
available) and program all the relevant information
in mac80211 to keep the connection.

Reviewed-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
This commit is contained in:
Johannes Berg
2013-08-06 18:58:56 +02:00
parent 04a4e1fdd2
commit 6d9d32b89a
7 changed files with 420 additions and 23 deletions
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25
drivers/net/wireless/iwlwifi/mvm/fw-api-d3.h
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@@ -335,7 +335,7 @@ enum iwl_wowlan_wakeup_reason {
IWL_WOWLAN_WAKEUP_BY_REM_WAKE_WAKEUP_PACKET = BIT(12),
}; /* WOWLAN_WAKE_UP_REASON_API_E_VER_2 */
struct iwl_wowlan_status {
struct iwl_wowlan_status_v4 {
__le64 replay_ctr;
__le16 pattern_number;
__le16 non_qos_seq_ctr;
@@ -350,6 +350,29 @@ struct iwl_wowlan_status {
u8 wake_packet[]; /* can be truncated from _length to _bufsize */
} __packed; /* WOWLAN_STATUSES_API_S_VER_4 */
struct iwl_wowlan_gtk_status {
u8 key_index;
u8 reserved[3];
u8 decrypt_key[16];
u8 tkip_mic_key[8];
struct iwl_wowlan_rsc_tsc_params_cmd rsc;
} __packed;
struct iwl_wowlan_status_v6 {
struct iwl_wowlan_gtk_status gtk;
__le64 replay_ctr;
__le16 pattern_number;
__le16 non_qos_seq_ctr;
__le16 qos_seq_ctr[8];
__le32 wakeup_reasons;
__le32 num_of_gtk_rekeys;
__le32 transmitted_ndps;
__le32 received_beacons;
__le32 wake_packet_length;
__le32 wake_packet_bufsize;
u8 wake_packet[]; /* can be truncated from _length to _bufsize */
} __packed; /* WOWLAN_STATUSES_API_S_VER_6 */
#define IWL_WOWLAN_TCP_MAX_PACKET_LEN 64
#define IWL_WOWLAN_REMOTE_WAKE_MAX_PACKET_LEN 128
#define IWL_WOWLAN_REMOTE_WAKE_MAX_TOKENS 2048