| /****************************************************************************** |
| * |
| * This file is provided under a dual BSD/GPLv2 license. When using or |
| * redistributing this file, you may do so under either license. |
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| * GPL LICENSE SUMMARY |
| * |
| * Copyright(c) 2012 - 2013 Intel Corporation. All rights reserved. |
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| * This program is free software; you can redistribute it and/or modify |
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| * The full GNU General Public License is included in this distribution |
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| * Contact Information: |
| * Intel Linux Wireless <ilw@linux.intel.com> |
| * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497 |
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| * BSD LICENSE |
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| * Copyright(c) 2012 - 2013 Intel Corporation. All rights reserved. |
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| *****************************************************************************/ |
| |
| #ifndef __fw_api_tx_h__ |
| #define __fw_api_tx_h__ |
| |
| /** |
| * enum iwl_tx_flags - bitmasks for tx_flags in TX command |
| * @TX_CMD_FLG_PROT_REQUIRE: use RTS or CTS-to-self to protect the frame |
| * @TX_CMD_FLG_ACK: expect ACK from receiving station |
| * @TX_CMD_FLG_STA_RATE: use RS table with initial index from the TX command. |
| * Otherwise, use rate_n_flags from the TX command |
| * @TX_CMD_FLG_BA: this frame is a block ack |
| * @TX_CMD_FLG_BAR: this frame is a BA request, immediate BAR is expected |
| * Must set TX_CMD_FLG_ACK with this flag. |
| * @TX_CMD_FLG_TXOP_PROT: protect frame with full TXOP protection |
| * @TX_CMD_FLG_VHT_NDPA: mark frame is NDPA for VHT beamformer sequence |
| * @TX_CMD_FLG_HT_NDPA: mark frame is NDPA for HT beamformer sequence |
| * @TX_CMD_FLG_CSI_FDBK2HOST: mark to send feedback to host (only if good CRC) |
| * @TX_CMD_FLG_BT_DIS: disable BT priority for this frame |
| * @TX_CMD_FLG_SEQ_CTL: set if FW should override the sequence control. |
| * Should be set for mgmt, non-QOS data, mcast, bcast and in scan command |
| * @TX_CMD_FLG_MORE_FRAG: this frame is non-last MPDU |
| * @TX_CMD_FLG_NEXT_FRAME: this frame includes information of the next frame |
| * @TX_CMD_FLG_TSF: FW should calculate and insert TSF in the frame |
| * Should be set for beacons and probe responses |
| * @TX_CMD_FLG_CALIB: activate PA TX power calibrations |
| * @TX_CMD_FLG_KEEP_SEQ_CTL: if seq_ctl is set, don't increase inner seq count |
| * @TX_CMD_FLG_AGG_START: allow this frame to start aggregation |
| * @TX_CMD_FLG_MH_PAD: driver inserted 2 byte padding after MAC header. |
| * Should be set for 26/30 length MAC headers |
| * @TX_CMD_FLG_RESP_TO_DRV: zero this if the response should go only to FW |
| * @TX_CMD_FLG_CCMP_AGG: this frame uses CCMP for aggregation acceleration |
| * @TX_CMD_FLG_TKIP_MIC_DONE: FW already performed TKIP MIC calculation |
| * @TX_CMD_FLG_CTS_ONLY: send CTS only, no data after that |
| * @TX_CMD_FLG_DUR: disable duration overwriting used in PS-Poll Assoc-id |
| * @TX_CMD_FLG_FW_DROP: FW should mark frame to be dropped |
| * @TX_CMD_FLG_EXEC_PAPD: execute PAPD |
| * @TX_CMD_FLG_PAPD_TYPE: 0 for reference power, 1 for nominal power |
| * @TX_CMD_FLG_HCCA_CHUNK: mark start of TSPEC chunk |
| */ |
| enum iwl_tx_flags { |
| TX_CMD_FLG_PROT_REQUIRE = BIT(0), |
| TX_CMD_FLG_ACK = BIT(3), |
| TX_CMD_FLG_STA_RATE = BIT(4), |
| TX_CMD_FLG_BA = BIT(5), |
| TX_CMD_FLG_BAR = BIT(6), |
| TX_CMD_FLG_TXOP_PROT = BIT(7), |
| TX_CMD_FLG_VHT_NDPA = BIT(8), |
| TX_CMD_FLG_HT_NDPA = BIT(9), |
| TX_CMD_FLG_CSI_FDBK2HOST = BIT(10), |
| TX_CMD_FLG_BT_DIS = BIT(12), |
| TX_CMD_FLG_SEQ_CTL = BIT(13), |
| TX_CMD_FLG_MORE_FRAG = BIT(14), |
| TX_CMD_FLG_NEXT_FRAME = BIT(15), |
| TX_CMD_FLG_TSF = BIT(16), |
| TX_CMD_FLG_CALIB = BIT(17), |
| TX_CMD_FLG_KEEP_SEQ_CTL = BIT(18), |
| TX_CMD_FLG_AGG_START = BIT(19), |
| TX_CMD_FLG_MH_PAD = BIT(20), |
| TX_CMD_FLG_RESP_TO_DRV = BIT(21), |
| TX_CMD_FLG_CCMP_AGG = BIT(22), |
| TX_CMD_FLG_TKIP_MIC_DONE = BIT(23), |
| TX_CMD_FLG_CTS_ONLY = BIT(24), |
| TX_CMD_FLG_DUR = BIT(25), |
| TX_CMD_FLG_FW_DROP = BIT(26), |
| TX_CMD_FLG_EXEC_PAPD = BIT(27), |
| TX_CMD_FLG_PAPD_TYPE = BIT(28), |
| TX_CMD_FLG_HCCA_CHUNK = BIT(31) |
| }; /* TX_FLAGS_BITS_API_S_VER_1 */ |
| |
| /* |
| * TX command security control |
| */ |
| #define TX_CMD_SEC_WEP 0x01 |
| #define TX_CMD_SEC_CCM 0x02 |
| #define TX_CMD_SEC_TKIP 0x03 |
| #define TX_CMD_SEC_WEP_KEY_IDX_POS 6 |
| #define TX_CMD_SEC_WEP_KEY_IDX_MSK 0xc0 |
| #define TX_CMD_SEC_KEY128 0x08 |
| |
| /* TODO: how does these values are OK with only 16 bit variable??? */ |
| /* |
| * TX command next frame info |
| * |
| * bits 0:2 - security control (TX_CMD_SEC_*) |
| * bit 3 - immediate ACK required |
| * bit 4 - rate is taken from STA table |
| * bit 5 - frame belongs to BA stream |
| * bit 6 - immediate BA response expected |
| * bit 7 - unused |
| * bits 8:15 - Station ID |
| * bits 16:31 - rate |
| */ |
| #define TX_CMD_NEXT_FRAME_ACK_MSK (0x8) |
| #define TX_CMD_NEXT_FRAME_STA_RATE_MSK (0x10) |
| #define TX_CMD_NEXT_FRAME_BA_MSK (0x20) |
| #define TX_CMD_NEXT_FRAME_IMM_BA_RSP_MSK (0x40) |
| #define TX_CMD_NEXT_FRAME_FLAGS_MSK (0xf8) |
| #define TX_CMD_NEXT_FRAME_STA_ID_MSK (0xff00) |
| #define TX_CMD_NEXT_FRAME_STA_ID_POS (8) |
| #define TX_CMD_NEXT_FRAME_RATE_MSK (0xffff0000) |
| #define TX_CMD_NEXT_FRAME_RATE_POS (16) |
| |
| /* |
| * TX command Frame life time in us - to be written in pm_frame_timeout |
| */ |
| #define TX_CMD_LIFE_TIME_INFINITE 0xFFFFFFFF |
| #define TX_CMD_LIFE_TIME_DEFAULT 2000000 /* 2000 ms*/ |
| #define TX_CMD_LIFE_TIME_PROBE_RESP 40000 /* 40 ms */ |
| #define TX_CMD_LIFE_TIME_EXPIRED_FRAME 0 |
| |
| /* |
| * TID for non QoS frames - to be written in tid_tspec |
| */ |
| #define IWL_TID_NON_QOS IWL_MAX_TID_COUNT |
| |
| /* |
| * Limits on the retransmissions - to be written in {data,rts}_retry_limit |
| */ |
| #define IWL_DEFAULT_TX_RETRY 15 |
| #define IWL_MGMT_DFAULT_RETRY_LIMIT 3 |
| #define IWL_RTS_DFAULT_RETRY_LIMIT 60 |
| #define IWL_BAR_DFAULT_RETRY_LIMIT 60 |
| #define IWL_LOW_RETRY_LIMIT 7 |
| |
| /* 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 |
| * @next_frame_len: same as len, but for next frame (0 if not applicable) |
| * Used for fragmentation and bursting, but not in 11n aggregation. |
| * @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_* |
| * @sta_id: index of destination station in FW station table |
| * @sec_ctl: security control, TX_CMD_SEC_* |
| * @initial_rate_index: index into the the rate table for initial TX attempt. |
| * Applied if TX_CMD_FLG_STA_RATE_MSK is set, normally 0 for data frames. |
| * @key: security key |
| * @next_frame_flags: TX_CMD_SEC_* and TX_CMD_NEXT_FRAME_* |
| * @life_time: frame life time (usecs??) |
| * @dram_lsb_ptr: Physical address of scratch area in the command (try_cnt + |
| * btkill_cnd + reserved), first 32 bits. "0" disables usage. |
| * @dram_msb_ptr: upper bits of the scratch physical address |
| * @rts_retry_limit: max attempts for RTS |
| * @data_retry_limit: max attempts to send the data packet |
| * @tid_spec: TID/tspec |
| * @pm_frame_timeout: PM TX frame timeout |
| * @driver_txop: duration od EDCA TXOP, in 32-usec units. Set this if not |
| * specified by HCCA protocol |
| * |
| * The byte count (both len and next_frame_len) includes MAC header |
| * (24/26/30/32 bytes) |
| * + 2 bytes pad if 26/30 header size |
| * + 8 byte IV for CCM or TKIP (not used for WEP) |
| * + Data payload |
| * + 8-byte MIC (not used for CCM/WEP) |
| * It does not include post-MAC padding, i.e., |
| * MIC (CCM) 8 bytes, ICV (WEP/TKIP/CKIP) 4 bytes, CRC 4 bytes. |
| * Range of len: 14-2342 bytes. |
| * |
| * After the struct fields the MAC header is placed, plus any padding, |
| * and then the actial payload. |
| */ |
| struct iwl_tx_cmd { |
| __le16 len; |
| __le16 next_frame_len; |
| __le32 tx_flags; |
| /* DRAM_SCRATCH_API_U_VER_1 */ |
| u8 try_cnt; |
| u8 btkill_cnt; |
| __le16 reserved; |
| __le32 rate_n_flags; |
| u8 sta_id; |
| u8 sec_ctl; |
| u8 initial_rate_index; |
| u8 reserved2; |
| u8 key[16]; |
| __le16 next_frame_flags; |
| __le16 reserved3; |
| __le32 life_time; |
| __le32 dram_lsb_ptr; |
| u8 dram_msb_ptr; |
| u8 rts_retry_limit; |
| u8 data_retry_limit; |
| u8 tid_tspec; |
| __le16 pm_frame_timeout; |
| __le16 driver_txop; |
| u8 payload[0]; |
| struct ieee80211_hdr hdr[0]; |
| } __packed; /* TX_CMD_API_S_VER_3 */ |
| |
| /* |
| * TX response related data |
| */ |
| |
| /* |
| * enum iwl_tx_status - status that is returned by the fw after attempts to Tx |
| * @TX_STATUS_SUCCESS: |
| * @TX_STATUS_DIRECT_DONE: |
| * @TX_STATUS_POSTPONE_DELAY: |
| * @TX_STATUS_POSTPONE_FEW_BYTES: |
| * @TX_STATUS_POSTPONE_BT_PRIO: |
| * @TX_STATUS_POSTPONE_QUIET_PERIOD: |
| * @TX_STATUS_POSTPONE_CALC_TTAK: |
| * @TX_STATUS_FAIL_INTERNAL_CROSSED_RETRY: |
| * @TX_STATUS_FAIL_SHORT_LIMIT: |
| * @TX_STATUS_FAIL_LONG_LIMIT: |
| * @TX_STATUS_FAIL_UNDERRUN: |
| * @TX_STATUS_FAIL_DRAIN_FLOW: |
| * @TX_STATUS_FAIL_RFKILL_FLUSH: |
| * @TX_STATUS_FAIL_LIFE_EXPIRE: |
| * @TX_STATUS_FAIL_DEST_PS: |
| * @TX_STATUS_FAIL_HOST_ABORTED: |
| * @TX_STATUS_FAIL_BT_RETRY: |
| * @TX_STATUS_FAIL_STA_INVALID: |
| * @TX_TATUS_FAIL_FRAG_DROPPED: |
| * @TX_STATUS_FAIL_TID_DISABLE: |
| * @TX_STATUS_FAIL_FIFO_FLUSHED: |
| * @TX_STATUS_FAIL_SMALL_CF_POLL: |
| * @TX_STATUS_FAIL_FW_DROP: |
| * @TX_STATUS_FAIL_STA_COLOR_MISMATCH: mismatch between color of Tx cmd and |
| * STA table |
| * @TX_FRAME_STATUS_INTERNAL_ABORT: |
| * @TX_MODE_MSK: |
| * @TX_MODE_NO_BURST: |
| * @TX_MODE_IN_BURST_SEQ: |
| * @TX_MODE_FIRST_IN_BURST: |
| * @TX_QUEUE_NUM_MSK: |
| * |
| * Valid only if frame_count =1 |
| * TODO: complete documentation |
| */ |
| enum iwl_tx_status { |
| TX_STATUS_MSK = 0x000000ff, |
| TX_STATUS_SUCCESS = 0x01, |
| TX_STATUS_DIRECT_DONE = 0x02, |
| /* postpone TX */ |
| TX_STATUS_POSTPONE_DELAY = 0x40, |
| TX_STATUS_POSTPONE_FEW_BYTES = 0x41, |
| TX_STATUS_POSTPONE_BT_PRIO = 0x42, |
| TX_STATUS_POSTPONE_QUIET_PERIOD = 0x43, |
| TX_STATUS_POSTPONE_CALC_TTAK = 0x44, |
| /* abort TX */ |
| TX_STATUS_FAIL_INTERNAL_CROSSED_RETRY = 0x81, |
| TX_STATUS_FAIL_SHORT_LIMIT = 0x82, |
| TX_STATUS_FAIL_LONG_LIMIT = 0x83, |
| TX_STATUS_FAIL_UNDERRUN = 0x84, |
| TX_STATUS_FAIL_DRAIN_FLOW = 0x85, |
| TX_STATUS_FAIL_RFKILL_FLUSH = 0x86, |
| TX_STATUS_FAIL_LIFE_EXPIRE = 0x87, |
| TX_STATUS_FAIL_DEST_PS = 0x88, |
| TX_STATUS_FAIL_HOST_ABORTED = 0x89, |
| TX_STATUS_FAIL_BT_RETRY = 0x8a, |
| TX_STATUS_FAIL_STA_INVALID = 0x8b, |
| TX_STATUS_FAIL_FRAG_DROPPED = 0x8c, |
| TX_STATUS_FAIL_TID_DISABLE = 0x8d, |
| TX_STATUS_FAIL_FIFO_FLUSHED = 0x8e, |
| TX_STATUS_FAIL_SMALL_CF_POLL = 0x8f, |
| TX_STATUS_FAIL_FW_DROP = 0x90, |
| TX_STATUS_FAIL_STA_COLOR_MISMATCH = 0x91, |
| TX_STATUS_INTERNAL_ABORT = 0x92, |
| TX_MODE_MSK = 0x00000f00, |
| TX_MODE_NO_BURST = 0x00000000, |
| TX_MODE_IN_BURST_SEQ = 0x00000100, |
| TX_MODE_FIRST_IN_BURST = 0x00000200, |
| TX_QUEUE_NUM_MSK = 0x0001f000, |
| TX_NARROW_BW_MSK = 0x00060000, |
| TX_NARROW_BW_1DIV2 = 0x00020000, |
| TX_NARROW_BW_1DIV4 = 0x00040000, |
| TX_NARROW_BW_1DIV8 = 0x00060000, |
| }; |
| |
| /* |
| * enum iwl_tx_agg_status - TX aggregation status |
| * @AGG_TX_STATE_STATUS_MSK: |
| * @AGG_TX_STATE_TRANSMITTED: |
| * @AGG_TX_STATE_UNDERRUN: |
| * @AGG_TX_STATE_BT_PRIO: |
| * @AGG_TX_STATE_FEW_BYTES: |
| * @AGG_TX_STATE_ABORT: |
| * @AGG_TX_STATE_LAST_SENT_TTL: |
| * @AGG_TX_STATE_LAST_SENT_TRY_CNT: |
| * @AGG_TX_STATE_LAST_SENT_BT_KILL: |
| * @AGG_TX_STATE_SCD_QUERY: |
| * @AGG_TX_STATE_TEST_BAD_CRC32: |
| * @AGG_TX_STATE_RESPONSE: |
| * @AGG_TX_STATE_DUMP_TX: |
| * @AGG_TX_STATE_DELAY_TX: |
| * @AGG_TX_STATE_TRY_CNT_MSK: Retry count for 1st frame in aggregation (retries |
| * occur if tx failed for this frame when it was a member of a previous |
| * aggregation block). If rate scaling is used, retry count indicates the |
| * rate table entry used for all frames in the new agg. |
| *@ AGG_TX_STATE_SEQ_NUM_MSK: Command ID and sequence number of Tx command for |
| * this frame |
| * |
| * TODO: complete documentation |
| */ |
| enum iwl_tx_agg_status { |
| AGG_TX_STATE_STATUS_MSK = 0x00fff, |
| AGG_TX_STATE_TRANSMITTED = 0x000, |
| AGG_TX_STATE_UNDERRUN = 0x001, |
| AGG_TX_STATE_BT_PRIO = 0x002, |
| AGG_TX_STATE_FEW_BYTES = 0x004, |
| AGG_TX_STATE_ABORT = 0x008, |
| AGG_TX_STATE_LAST_SENT_TTL = 0x010, |
| AGG_TX_STATE_LAST_SENT_TRY_CNT = 0x020, |
| AGG_TX_STATE_LAST_SENT_BT_KILL = 0x040, |
| AGG_TX_STATE_SCD_QUERY = 0x080, |
| AGG_TX_STATE_TEST_BAD_CRC32 = 0x0100, |
| AGG_TX_STATE_RESPONSE = 0x1ff, |
| AGG_TX_STATE_DUMP_TX = 0x200, |
| AGG_TX_STATE_DELAY_TX = 0x400, |
| AGG_TX_STATE_TRY_CNT_POS = 12, |
| AGG_TX_STATE_TRY_CNT_MSK = 0xf << AGG_TX_STATE_TRY_CNT_POS, |
| }; |
| |
| #define AGG_TX_STATE_LAST_SENT_MSK (AGG_TX_STATE_LAST_SENT_TTL| \ |
| AGG_TX_STATE_LAST_SENT_TRY_CNT| \ |
| AGG_TX_STATE_LAST_SENT_BT_KILL) |
| |
| /* |
| * The mask below describes a status where we are absolutely sure that the MPDU |
| * wasn't sent. For BA/Underrun we cannot be that sure. All we know that we've |
| * written the bytes to the TXE, but we know nothing about what the DSP did. |
| */ |
| #define AGG_TX_STAT_FRAME_NOT_SENT (AGG_TX_STATE_FEW_BYTES | \ |
| AGG_TX_STATE_ABORT | \ |
| AGG_TX_STATE_SCD_QUERY) |
| |
| /* |
| * REPLY_TX = 0x1c (response) |
| * |
| * This response may be in one of two slightly different formats, indicated |
| * by the frame_count field: |
| * |
| * 1) No aggregation (frame_count == 1). This reports Tx results for a single |
| * frame. Multiple attempts, at various bit rates, may have been made for |
| * this frame. |
| * |
| * 2) Aggregation (frame_count > 1). This reports Tx results for two or more |
| * frames that used block-acknowledge. All frames were transmitted at |
| * same rate. Rate scaling may have been used if first frame in this new |
| * agg block failed in previous agg block(s). |
| * |
| * Note that, for aggregation, ACK (block-ack) status is not delivered |
| * here; block-ack has not been received by the time the device records |
| * this status. |
| * This status relates to reasons the tx might have been blocked or aborted |
| * within the device, rather than whether it was received successfully by |
| * the destination station. |
| */ |
| |
| /** |
| * struct agg_tx_status - per packet TX aggregation status |
| * @status: enum iwl_tx_agg_status |
| * @sequence: Sequence # for this frame's Tx cmd (not SSN!) |
| */ |
| struct agg_tx_status { |
| __le16 status; |
| __le16 sequence; |
| } __packed; |
| |
| /* |
| * definitions for initial rate index field |
| * bits [3:0] initial rate index |
| * bits [6:4] rate table color, used for the initial rate |
| * bit-7 invalid rate indication |
| */ |
| #define TX_RES_INIT_RATE_INDEX_MSK 0x0f |
| #define TX_RES_RATE_TABLE_COLOR_MSK 0x70 |
| #define TX_RES_INV_RATE_INDEX_MSK 0x80 |
| |
| #define IWL_MVM_TX_RES_GET_TID(_ra_tid) ((_ra_tid) & 0x0f) |
| #define IWL_MVM_TX_RES_GET_RA(_ra_tid) ((_ra_tid) >> 4) |
| |
| /** |
| * struct iwl_mvm_tx_resp - notifies that fw is TXing a packet |
| * ( REPLY_TX = 0x1c ) |
| * @frame_count: 1 no aggregation, >1 aggregation |
| * @bt_kill_count: num of times blocked by bluetooth (unused for agg) |
| * @failure_rts: num of failures due to unsuccessful RTS |
| * @failure_frame: num failures due to no ACK (unused for agg) |
| * @initial_rate: for non-agg: rate of the successful Tx. For agg: rate of the |
| * Tx of all the batch. RATE_MCS_* |
| * @wireless_media_time: for non-agg: RTS + CTS + frame tx attempts time + ACK. |
| * for agg: RTS + CTS + aggregation tx time + block-ack time. |
| * in usec. |
| * @pa_status: tx power info |
| * @pa_integ_res_a: tx power info |
| * @pa_integ_res_b: tx power info |
| * @pa_integ_res_c: tx power info |
| * @measurement_req_id: tx power info |
| * @tfd_info: TFD information set by the FH |
| * @seq_ctl: sequence control from the Tx cmd |
| * @byte_cnt: byte count from the Tx cmd |
| * @tlc_info: TLC rate info |
| * @ra_tid: bits [3:0] = ra, bits [7:4] = tid |
| * @frame_ctrl: frame control |
| * @status: for non-agg: frame status TX_STATUS_* |
| * for agg: status of 1st frame, AGG_TX_STATE_*; other frame status fields |
| * follow this one, up to frame_count. |
| * |
| * After the array of statuses comes the SSN of the SCD. Look at |
| * %iwl_mvm_get_scd_ssn for more details. |
| */ |
| struct iwl_mvm_tx_resp { |
| u8 frame_count; |
| u8 bt_kill_count; |
| u8 failure_rts; |
| u8 failure_frame; |
| __le32 initial_rate; |
| __le16 wireless_media_time; |
| |
| u8 pa_status; |
| u8 pa_integ_res_a[3]; |
| u8 pa_integ_res_b[3]; |
| u8 pa_integ_res_c[3]; |
| __le16 measurement_req_id; |
| __le16 reserved; |
| |
| __le32 tfd_info; |
| __le16 seq_ctl; |
| __le16 byte_cnt; |
| u8 tlc_info; |
| u8 ra_tid; |
| __le16 frame_ctrl; |
| |
| struct agg_tx_status status; |
| } __packed; /* TX_RSP_API_S_VER_3 */ |
| |
| /** |
| * struct iwl_mvm_ba_notif - notifies about reception of BA |
| * ( BA_NOTIF = 0xc5 ) |
| * @sta_addr_lo32: lower 32 bits of the MAC address |
| * @sta_addr_hi16: upper 16 bits of the MAC address |
| * @sta_id: Index of recipient (BA-sending) station in fw's station table |
| * @tid: tid of the session |
| * @seq_ctl: |
| * @bitmap: the bitmap of the BA notification as seen in the air |
| * @scd_flow: the tx queue this BA relates to |
| * @scd_ssn: the index of the last contiguously sent packet |
| * @txed: number of Txed frames in this batch |
| * @txed_2_done: number of Acked frames in this batch |
| */ |
| struct iwl_mvm_ba_notif { |
| __le32 sta_addr_lo32; |
| __le16 sta_addr_hi16; |
| __le16 reserved; |
| |
| u8 sta_id; |
| u8 tid; |
| __le16 seq_ctl; |
| __le64 bitmap; |
| __le16 scd_flow; |
| __le16 scd_ssn; |
| u8 txed; |
| u8 txed_2_done; |
| __le16 reserved1; |
| } __packed; |
| |
| /* |
| * struct iwl_mac_beacon_cmd - 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 { |
| struct iwl_tx_cmd tx; |
| __le32 template_id; |
| __le32 tim_idx; |
| __le32 tim_size; |
| struct ieee80211_hdr frame[0]; |
| } __packed; |
| |
| /** |
| * enum iwl_dump_control - dump (flush) control flags |
| * @DUMP_TX_FIFO_FLUSH: Dump MSDUs until the the FIFO is empty |
| * and the TFD queues are empty. |
| */ |
| enum iwl_dump_control { |
| DUMP_TX_FIFO_FLUSH = BIT(1), |
| }; |
| |
| /** |
| * struct iwl_tx_path_flush_cmd -- queue/FIFO flush command |
| * @queues_ctl: bitmap of queues to flush |
| * @flush_ctl: control flags |
| * @reserved: reserved |
| */ |
| struct iwl_tx_path_flush_cmd { |
| __le32 queues_ctl; |
| __le16 flush_ctl; |
| __le16 reserved; |
| } __packed; /* TX_PATH_FLUSH_CMD_API_S_VER_1 */ |
| |
| /** |
| * iwl_mvm_get_scd_ssn - returns the SSN of the SCD |
| * @tx_resp: the Tx response from the fw (agg or non-agg) |
| * |
| * When the fw sends an AMPDU, it fetches the MPDUs one after the other. Since |
| * it can't know that everything will go well until the end of the AMPDU, it |
| * can't know in advance the number of MPDUs that will be sent in the current |
| * batch. This is why it writes the agg Tx response while it fetches the MPDUs. |
| * Hence, it can't know in advance what the SSN of the SCD will be at the end |
| * of the batch. This is why the SSN of the SCD is written at the end of the |
| * whole struct at a variable offset. This function knows how to cope with the |
| * variable offset and returns the SSN of the SCD. |
| */ |
| static inline u32 iwl_mvm_get_scd_ssn(struct iwl_mvm_tx_resp *tx_resp) |
| { |
| return le32_to_cpup((__le32 *)&tx_resp->status + |
| tx_resp->frame_count) & 0xfff; |
| } |
| |
| #endif /* __fw_api_tx_h__ */ |
