iwlwifi: mvm: Support CSA countdown offloading

[cascardo/linux.git] / drivers / net / wireless / intel / iwlwifi / mvm / fw-api-tx.h

diff --git a/drivers/net/wireless/intel/iwlwifi/mvm/fw-api-tx.h b/drivers/net/wireless/intel/iwlwifi/mvm/fw-api-tx.h
index ba3f0bb..ee59511 100644 (file)
--- a/drivers/net/wireless/intel/iwlwifi/mvm/fw-api-tx.h
+++ b/drivers/net/wireless/intel/iwlwifi/mvm/fw-api-tx.h
@@ -6,6 +6,7 @@
  * GPL LICENSE SUMMARY
  *
  * Copyright(c) 2012 - 2014 Intel Corporation. All rights reserved.
+ * Copyright(c) 2016 Intel Deutschland GmbH
  *
  * This program is free software; you can redistribute it and/or modify
  * it under the terms of version 2 of the GNU General Public License as
@@ -193,11 +194,41 @@ enum iwl_tx_pm_timeouts {
 #define IWL_BAR_DFAULT_RETRY_LIMIT             60
 #define IWL_LOW_RETRY_LIMIT                    7
 
+/**
+ * enum iwl_tx_offload_assist_flags_pos -  set %iwl_tx_cmd offload_assist values
+ * @TX_CMD_OFFLD_IP_HDR_OFFSET: offset to start of IP header (in words)
+ *     from mac header end. For normal case it is 4 words for SNAP.
+ *     note: tx_cmd, mac header and pad are not counted in the offset.
+ *     This is used to help the offload in case there is tunneling such as
+ *     IPv6 in IPv4, in such case the ip header offset should point to the
+ *     inner ip header and IPv4 checksum of the external header should be
+ *     calculated by driver.
+ * @TX_CMD_OFFLD_L4_EN: enable TCP/UDP checksum
+ * @TX_CMD_OFFLD_L3_EN: enable IP header checksum
+ * @TX_CMD_OFFLD_MH_SIZE: size of the mac header in words. Includes the IV
+ *     field. Doesn't include the pad.
+ * @TX_CMD_OFFLD_PAD: mark 2-byte pad was inserted after the mac header for
+ *     alignment
+ * @TX_CMD_OFFLD_AMSDU: mark TX command is A-MSDU
+ */
+enum iwl_tx_offload_assist_flags_pos {
+       TX_CMD_OFFLD_IP_HDR =           0,
+       TX_CMD_OFFLD_L4_EN =            6,
+       TX_CMD_OFFLD_L3_EN =            7,
+       TX_CMD_OFFLD_MH_SIZE =          8,
+       TX_CMD_OFFLD_PAD =              13,
+       TX_CMD_OFFLD_AMSDU =            14,
+};
+
+#define IWL_TX_CMD_OFFLD_MH_MASK       0x1f
+#define IWL_TX_CMD_OFFLD_IP_HDR_MASK   0x3f
+
 /* TODO: complete documentation for try_cnt and btkill_cnt */
 /**
  * struct iwl_tx_cmd - TX command struct to FW
  * ( TX_CMD = 0x1c )
  * @len: in bytes of the payload, see below for details
+ * @offload_assist: TX offload configuration
  * @tx_flags: combination of TX_CMD_FLG_*
  * @rate_n_flags: rate for *all* Tx attempts, if TX_CMD_FLG_STA_RATE_MSK is
  *     cleared. Combination of RATE_MCS_*
@@ -231,7 +262,7 @@ enum iwl_tx_pm_timeouts {
  */
 struct iwl_tx_cmd {
        __le16 len;
-       __le16 next_frame_len;
+       __le16 offload_assist;
        __le32 tx_flags;
        struct {
                u8 try_cnt;
@@ -255,7 +286,7 @@ struct iwl_tx_cmd {
        __le16 reserved4;
        u8 payload[0];
        struct ieee80211_hdr hdr[0];
-} __packed; /* TX_CMD_API_S_VER_3 */
+} __packed; /* TX_CMD_API_S_VER_6 */
 
 /*
  * TX response related data
@@ -531,13 +562,32 @@ struct iwl_mvm_ba_notif {
        u8 reserved1;
 } __packed;
 
-/*
- * struct iwl_mac_beacon_cmd - beacon template command
+/**
+ * struct iwl_mac_beacon_cmd_v6 - beacon template command
+ * @tx: the tx commands associated with the beacon frame
+ * @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
+ * @frame: the template of the beacon frame
+ */
+struct iwl_mac_beacon_cmd_v6 {
+       struct iwl_tx_cmd tx;
+       __le32 template_id;
+       __le32 tim_idx;
+       __le32 tim_size;
+       struct ieee80211_hdr frame[0];
+} __packed; /* BEACON_TEMPLATE_CMD_API_S_VER_6 */
+
+/**
+ * struct iwl_mac_beacon_cmd - beacon template command with offloaded CSA
  * @tx: the tx commands associated with the beacon frame
  * @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
+ * @csa_offset: offset to the CSA IE if present
  * @frame: the template of the beacon frame
  */
 struct iwl_mac_beacon_cmd {
@@ -545,8 +595,10 @@ struct iwl_mac_beacon_cmd {
        __le32 template_id;
        __le32 tim_idx;
        __le32 tim_size;
+       __le32 ecsa_offset;
+       __le32 csa_offset;
        struct ieee80211_hdr frame[0];
-} __packed;
+} __packed; /* BEACON_TEMPLATE_CMD_API_S_VER_7 */
 
 struct iwl_beacon_notif {
        struct iwl_mvm_tx_resp beacon_notify_hdr;