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273 lines
8.0 KiB
273 lines
8.0 KiB
/* SPDX-License-Identifier: GPL-2.0-only */ |
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/* |
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* This file is part of wl1271 |
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* |
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* Copyright (C) 1998-2009 Texas Instruments. All rights reserved. |
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* Copyright (C) 2009 Nokia Corporation |
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* |
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* Contact: Luciano Coelho <[email protected]> |
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*/ |
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#ifndef __TX_H__ |
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#define __TX_H__ |
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#define TX_HW_MGMT_PKT_LIFETIME_TU 2000 |
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#define TX_HW_AP_MODE_PKT_LIFETIME_TU 8000 |
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#define TX_HW_ATTR_SAVE_RETRIES BIT(0) |
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#define TX_HW_ATTR_HEADER_PAD BIT(1) |
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#define TX_HW_ATTR_SESSION_COUNTER (BIT(2) | BIT(3) | BIT(4)) |
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#define TX_HW_ATTR_RATE_POLICY (BIT(5) | BIT(6) | BIT(7) | \ |
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BIT(8) | BIT(9)) |
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#define TX_HW_ATTR_LAST_WORD_PAD (BIT(10) | BIT(11)) |
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#define TX_HW_ATTR_TX_CMPLT_REQ BIT(12) |
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#define TX_HW_ATTR_TX_DUMMY_REQ BIT(13) |
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#define TX_HW_ATTR_HOST_ENCRYPT BIT(14) |
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#define TX_HW_ATTR_EAPOL_FRAME BIT(15) |
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#define TX_HW_ATTR_OFST_SAVE_RETRIES 0 |
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#define TX_HW_ATTR_OFST_HEADER_PAD 1 |
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#define TX_HW_ATTR_OFST_SESSION_COUNTER 2 |
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#define TX_HW_ATTR_OFST_RATE_POLICY 5 |
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#define TX_HW_ATTR_OFST_LAST_WORD_PAD 10 |
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#define TX_HW_ATTR_OFST_TX_CMPLT_REQ 12 |
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#define TX_HW_RESULT_QUEUE_LEN 16 |
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#define TX_HW_RESULT_QUEUE_LEN_MASK 0xf |
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#define WL1271_TX_ALIGN_TO 4 |
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#define WL1271_EXTRA_SPACE_TKIP 4 |
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#define WL1271_EXTRA_SPACE_AES 8 |
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#define WL1271_EXTRA_SPACE_MAX 8 |
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/* Used for management frames and dummy packets */ |
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#define WL1271_TID_MGMT 7 |
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/* stop a ROC for pending authentication reply after this time (ms) */ |
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#define WLCORE_PEND_AUTH_ROC_TIMEOUT 1000 |
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struct wl127x_tx_mem { |
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/* |
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* Number of extra memory blocks to allocate for this packet |
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* in addition to the number of blocks derived from the packet |
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* length. |
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*/ |
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u8 extra_blocks; |
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/* |
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* Total number of memory blocks allocated by the host for |
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* this packet. Must be equal or greater than the actual |
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* blocks number allocated by HW. |
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*/ |
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u8 total_mem_blocks; |
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} __packed; |
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struct wl128x_tx_mem { |
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/* |
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* Total number of memory blocks allocated by the host for |
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* this packet. |
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*/ |
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u8 total_mem_blocks; |
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/* |
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* Number of extra bytes, at the end of the frame. the host |
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* uses this padding to complete each frame to integer number |
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* of SDIO blocks. |
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*/ |
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u8 extra_bytes; |
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} __packed; |
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struct wl18xx_tx_mem { |
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/* |
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* Total number of memory blocks allocated by the host for |
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* this packet. |
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*/ |
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u8 total_mem_blocks; |
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/* |
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* control bits |
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*/ |
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u8 ctrl; |
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} __packed; |
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/* |
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* On wl128x based devices, when TX packets are aggregated, each packet |
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* size must be aligned to the SDIO block size. The maximum block size |
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* is bounded by the type of the padded bytes field that is sent to the |
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* FW. Currently the type is u8, so the maximum block size is 256 bytes. |
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*/ |
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#define WL12XX_BUS_BLOCK_SIZE min(512u, \ |
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(1u << (8 * sizeof(((struct wl128x_tx_mem *) 0)->extra_bytes)))) |
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struct wl1271_tx_hw_descr { |
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/* Length of packet in words, including descriptor+header+data */ |
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__le16 length; |
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union { |
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struct wl127x_tx_mem wl127x_mem; |
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struct wl128x_tx_mem wl128x_mem; |
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struct wl18xx_tx_mem wl18xx_mem; |
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} __packed; |
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/* Device time (in us) when the packet arrived to the driver */ |
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__le32 start_time; |
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/* |
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* Max delay in TUs until transmission. The last device time the |
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* packet can be transmitted is: start_time + (1024 * life_time) |
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*/ |
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__le16 life_time; |
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/* Bitwise fields - see TX_ATTR... definitions above. */ |
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__le16 tx_attr; |
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/* Packet identifier used also in the Tx-Result. */ |
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u8 id; |
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/* The packet TID value (as User-Priority) */ |
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u8 tid; |
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/* host link ID (HLID) */ |
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u8 hlid; |
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union { |
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u8 wl12xx_reserved; |
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/* |
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* bit 0 -> 0 = udp, 1 = tcp |
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* bit 1:7 -> IP header offset |
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*/ |
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u8 wl18xx_checksum_data; |
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} __packed; |
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} __packed; |
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enum wl1271_tx_hw_res_status { |
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TX_SUCCESS = 0, |
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TX_HW_ERROR = 1, |
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TX_DISABLED = 2, |
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TX_RETRY_EXCEEDED = 3, |
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TX_TIMEOUT = 4, |
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TX_KEY_NOT_FOUND = 5, |
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TX_PEER_NOT_FOUND = 6, |
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TX_SESSION_MISMATCH = 7, |
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TX_LINK_NOT_VALID = 8, |
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}; |
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struct wl1271_tx_hw_res_descr { |
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/* Packet Identifier - same value used in the Tx descriptor.*/ |
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u8 id; |
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/* The status of the transmission, indicating success or one of |
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several possible reasons for failure. */ |
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u8 status; |
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/* Total air access duration including all retrys and overheads.*/ |
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__le16 medium_usage; |
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/* The time passed from host xfer to Tx-complete.*/ |
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__le32 fw_handling_time; |
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/* Total media delay |
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(from 1st EDCA AIFS counter until TX Complete). */ |
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__le32 medium_delay; |
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/* LS-byte of last TKIP seq-num (saved per AC for recovery). */ |
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u8 tx_security_sequence_number_lsb; |
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/* Retry count - number of transmissions without successful ACK.*/ |
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u8 ack_failures; |
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/* The rate that succeeded getting ACK |
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(Valid only if status=SUCCESS). */ |
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u8 rate_class_index; |
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/* for 4-byte alignment. */ |
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u8 spare; |
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} __packed; |
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struct wl1271_tx_hw_res_if { |
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__le32 tx_result_fw_counter; |
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__le32 tx_result_host_counter; |
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struct wl1271_tx_hw_res_descr tx_results_queue[TX_HW_RESULT_QUEUE_LEN]; |
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} __packed; |
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enum wlcore_queue_stop_reason { |
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WLCORE_QUEUE_STOP_REASON_WATERMARK, |
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WLCORE_QUEUE_STOP_REASON_FW_RESTART, |
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WLCORE_QUEUE_STOP_REASON_FLUSH, |
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WLCORE_QUEUE_STOP_REASON_SPARE_BLK, /* 18xx specific */ |
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}; |
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static inline int wl1271_tx_get_queue(int queue) |
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{ |
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switch (queue) { |
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case 0: |
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return CONF_TX_AC_VO; |
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case 1: |
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return CONF_TX_AC_VI; |
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case 2: |
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return CONF_TX_AC_BE; |
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case 3: |
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return CONF_TX_AC_BK; |
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default: |
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return CONF_TX_AC_BE; |
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} |
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} |
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static inline |
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int wlcore_tx_get_mac80211_queue(struct wl12xx_vif *wlvif, int queue) |
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{ |
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int mac_queue = wlvif->hw_queue_base; |
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switch (queue) { |
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case CONF_TX_AC_VO: |
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return mac_queue + 0; |
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case CONF_TX_AC_VI: |
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return mac_queue + 1; |
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case CONF_TX_AC_BE: |
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return mac_queue + 2; |
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case CONF_TX_AC_BK: |
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return mac_queue + 3; |
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default: |
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return mac_queue + 2; |
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} |
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} |
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static inline int wl1271_tx_total_queue_count(struct wl1271 *wl) |
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{ |
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int i, count = 0; |
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for (i = 0; i < NUM_TX_QUEUES; i++) |
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count += wl->tx_queue_count[i]; |
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return count; |
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} |
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void wl1271_tx_work(struct work_struct *work); |
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int wlcore_tx_work_locked(struct wl1271 *wl); |
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int wlcore_tx_complete(struct wl1271 *wl); |
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void wl12xx_tx_reset_wlvif(struct wl1271 *wl, struct wl12xx_vif *wlvif); |
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void wl12xx_tx_reset(struct wl1271 *wl); |
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void wl1271_tx_flush(struct wl1271 *wl); |
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u8 wlcore_rate_to_idx(struct wl1271 *wl, u8 rate, enum nl80211_band band); |
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u32 wl1271_tx_enabled_rates_get(struct wl1271 *wl, u32 rate_set, |
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enum nl80211_band rate_band); |
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u32 wl1271_tx_min_rate_get(struct wl1271 *wl, u32 rate_set); |
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u8 wl12xx_tx_get_hlid(struct wl1271 *wl, struct wl12xx_vif *wlvif, |
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struct sk_buff *skb, struct ieee80211_sta *sta); |
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void wl1271_tx_reset_link_queues(struct wl1271 *wl, u8 hlid); |
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void wl1271_handle_tx_low_watermark(struct wl1271 *wl); |
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bool wl12xx_is_dummy_packet(struct wl1271 *wl, struct sk_buff *skb); |
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void wl12xx_rearm_rx_streaming(struct wl1271 *wl, unsigned long *active_hlids); |
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unsigned int wlcore_calc_packet_alignment(struct wl1271 *wl, |
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unsigned int packet_length); |
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void wl1271_free_tx_id(struct wl1271 *wl, int id); |
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void wlcore_stop_queue_locked(struct wl1271 *wl, struct wl12xx_vif *wlvif, |
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u8 queue, enum wlcore_queue_stop_reason reason); |
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void wlcore_stop_queue(struct wl1271 *wl, struct wl12xx_vif *wlvif, u8 queue, |
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enum wlcore_queue_stop_reason reason); |
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void wlcore_wake_queue(struct wl1271 *wl, struct wl12xx_vif *wlvif, u8 queue, |
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enum wlcore_queue_stop_reason reason); |
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void wlcore_stop_queues(struct wl1271 *wl, |
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enum wlcore_queue_stop_reason reason); |
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void wlcore_wake_queues(struct wl1271 *wl, |
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enum wlcore_queue_stop_reason reason); |
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bool wlcore_is_queue_stopped_by_reason(struct wl1271 *wl, |
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struct wl12xx_vif *wlvif, u8 queue, |
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enum wlcore_queue_stop_reason reason); |
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bool |
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wlcore_is_queue_stopped_by_reason_locked(struct wl1271 *wl, |
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struct wl12xx_vif *wlvif, |
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u8 queue, |
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enum wlcore_queue_stop_reason reason); |
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bool wlcore_is_queue_stopped_locked(struct wl1271 *wl, struct wl12xx_vif *wlvif, |
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u8 queue); |
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/* from main.c */ |
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void wl1271_free_sta(struct wl1271 *wl, struct wl12xx_vif *wlvif, u8 hlid); |
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void wl12xx_rearm_tx_watchdog_locked(struct wl1271 *wl); |
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#endif
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