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1 /******************************************************************************
2  *
3  * This file is provided under a dual BSD/GPLv2 license.  When using or
4  * redistributing this file, you may do so under either license.
5  *
6  * GPL LICENSE SUMMARY
7  *
8  * Copyright(c) 2007 - 2014 Intel Corporation. All rights reserved.
9  * Copyright(c) 2013 - 2015 Intel Mobile Communications GmbH
10  * Copyright(c) 2016 - 2017 Intel Deutschland GmbH
11  * Copyright(c) 2019 - 2020 Intel Corporation
12  *
13  * This program is free software; you can redistribute it and/or modify
14  * it under the terms of version 2 of the GNU General Public License as
15  * published by the Free Software Foundation.
16  *
17  * This program is distributed in the hope that it will be useful, but
18  * WITHOUT ANY WARRANTY; without even the implied warranty of
19  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
20  * General Public License for more details.
21  *
22  * The full GNU General Public License is included in this distribution
23  * in the file called COPYING.
24  *
25  * Contact Information:
26  *  Intel Linux Wireless <linuxwifi@intel.com>
27  * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
28  *
29  * BSD LICENSE
30  *
31  * Copyright(c) 2005 - 2014 Intel Corporation. All rights reserved.
32  * Copyright(c) 2013 - 2015 Intel Mobile Communications GmbH
33  * Copyright(c) 2016 - 2017 Intel Deutschland GmbH
34  * Copyright(c) 2019 - 2020 Intel Corporation
35  * All rights reserved.
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63  *****************************************************************************/
64 #ifndef __iwl_fw_api_txq_h__
65 #define __iwl_fw_api_txq_h__
66 
67 /*
68  * DQA queue numbers
69  *
70  * @IWL_MVM_DQA_CMD_QUEUE: a queue reserved for sending HCMDs to the FW
71  * @IWL_MVM_DQA_AUX_QUEUE: a queue reserved for aux frames
72  * @IWL_MVM_DQA_P2P_DEVICE_QUEUE: a queue reserved for P2P device frames
73  * @IWL_MVM_DQA_INJECT_MONITOR_QUEUE: a queue reserved for injection using
74  *	monitor mode. Note this queue is the same as the queue for P2P device
75  *	but we can't have active monitor mode along with P2P device anyway.
76  * @IWL_MVM_DQA_GCAST_QUEUE: a queue reserved for P2P GO/SoftAP GCAST frames
77  * @IWL_MVM_DQA_BSS_CLIENT_QUEUE: a queue reserved for BSS activity, to ensure
78  *	that we are never left without the possibility to connect to an AP.
79  * @IWL_MVM_DQA_MIN_MGMT_QUEUE: first TXQ in pool for MGMT and non-QOS frames.
80  *	Each MGMT queue is mapped to a single STA
81  *	MGMT frames are frames that return true on ieee80211_is_mgmt()
82  * @IWL_MVM_DQA_MAX_MGMT_QUEUE: last TXQ in pool for MGMT frames
83  * @IWL_MVM_DQA_AP_PROBE_RESP_QUEUE: a queue reserved for P2P GO/SoftAP probe
84  *	responses
85  * @IWL_MVM_DQA_MIN_DATA_QUEUE: first TXQ in pool for DATA frames.
86  *	DATA frames are intended for !ieee80211_is_mgmt() frames, but if
87  *	the MGMT TXQ pool is exhausted, mgmt frames can be sent on DATA queues
88  *	as well
89  * @IWL_MVM_DQA_MAX_DATA_QUEUE: last TXQ in pool for DATA frames
90  */
91 enum iwl_mvm_dqa_txq {
92 	IWL_MVM_DQA_CMD_QUEUE = 0,
93 	IWL_MVM_DQA_AUX_QUEUE = 1,
94 	IWL_MVM_DQA_P2P_DEVICE_QUEUE = 2,
95 	IWL_MVM_DQA_INJECT_MONITOR_QUEUE = 2,
96 	IWL_MVM_DQA_GCAST_QUEUE = 3,
97 	IWL_MVM_DQA_BSS_CLIENT_QUEUE = 4,
98 	IWL_MVM_DQA_MIN_MGMT_QUEUE = 5,
99 	IWL_MVM_DQA_MAX_MGMT_QUEUE = 8,
100 	IWL_MVM_DQA_AP_PROBE_RESP_QUEUE = 9,
101 	IWL_MVM_DQA_MIN_DATA_QUEUE = 10,
102 	IWL_MVM_DQA_MAX_DATA_QUEUE = 30,
103 };
104 
105 enum iwl_mvm_tx_fifo {
106 	IWL_MVM_TX_FIFO_BK = 0,
107 	IWL_MVM_TX_FIFO_BE,
108 	IWL_MVM_TX_FIFO_VI,
109 	IWL_MVM_TX_FIFO_VO,
110 	IWL_MVM_TX_FIFO_MCAST = 5,
111 	IWL_MVM_TX_FIFO_CMD = 7,
112 };
113 
114 enum iwl_gen2_tx_fifo {
115 	IWL_GEN2_TX_FIFO_CMD = 0,
116 	IWL_GEN2_EDCA_TX_FIFO_BK,
117 	IWL_GEN2_EDCA_TX_FIFO_BE,
118 	IWL_GEN2_EDCA_TX_FIFO_VI,
119 	IWL_GEN2_EDCA_TX_FIFO_VO,
120 	IWL_GEN2_TRIG_TX_FIFO_BK,
121 	IWL_GEN2_TRIG_TX_FIFO_BE,
122 	IWL_GEN2_TRIG_TX_FIFO_VI,
123 	IWL_GEN2_TRIG_TX_FIFO_VO,
124 };
125 
126 /**
127  * enum iwl_tx_queue_cfg_actions - TXQ config options
128  * @TX_QUEUE_CFG_ENABLE_QUEUE: enable a queue
129  * @TX_QUEUE_CFG_TFD_SHORT_FORMAT: use short TFD format
130  */
131 enum iwl_tx_queue_cfg_actions {
132 	TX_QUEUE_CFG_ENABLE_QUEUE		= BIT(0),
133 	TX_QUEUE_CFG_TFD_SHORT_FORMAT		= BIT(1),
134 };
135 
136 #define IWL_DEFAULT_QUEUE_SIZE 256
137 #define IWL_MGMT_QUEUE_SIZE 16
138 #define IWL_CMD_QUEUE_SIZE 32
139 /**
140  * struct iwl_tx_queue_cfg_cmd - txq hw scheduler config command
141  * @sta_id: station id
142  * @tid: tid of the queue
143  * @flags: see &enum iwl_tx_queue_cfg_actions
144  * @cb_size: size of TFD cyclic buffer. Value is exponent - 3.
145  *	Minimum value 0 (8 TFDs), maximum value 5 (256 TFDs)
146  * @byte_cnt_addr: address of byte count table
147  * @tfdq_addr: address of TFD circular buffer
148  */
149 struct iwl_tx_queue_cfg_cmd {
150 	u8 sta_id;
151 	u8 tid;
152 	__le16 flags;
153 	__le32 cb_size;
154 	__le64 byte_cnt_addr;
155 	__le64 tfdq_addr;
156 } __packed; /* TX_QUEUE_CFG_CMD_API_S_VER_2 */
157 
158 /**
159  * struct iwl_tx_queue_cfg_rsp - response to txq hw scheduler config
160  * @queue_number: queue number assigned to this RA -TID
161  * @flags: set on failure
162  * @write_pointer: initial value for write pointer
163  * @reserved: reserved
164  */
165 struct iwl_tx_queue_cfg_rsp {
166 	__le16 queue_number;
167 	__le16 flags;
168 	__le16 write_pointer;
169 	__le16 reserved;
170 } __packed; /* TX_QUEUE_CFG_RSP_API_S_VER_2 */
171 
172 #endif /* __iwl_fw_api_txq_h__ */
173