#ifndef _RX_DESC_H_
#define _RX_DESC_H_
enum rx_attention_flags {
RX_ATTENTION_FLAGS_FIRST_MPDU = 1 << 0,
RX_ATTENTION_FLAGS_LAST_MPDU = 1 << 1,
RX_ATTENTION_FLAGS_MCAST_BCAST = 1 << 2,
RX_ATTENTION_FLAGS_PEER_IDX_INVALID = 1 << 3,
RX_ATTENTION_FLAGS_PEER_IDX_TIMEOUT = 1 << 4,
RX_ATTENTION_FLAGS_POWER_MGMT = 1 << 5,
RX_ATTENTION_FLAGS_NON_QOS = 1 << 6,
RX_ATTENTION_FLAGS_NULL_DATA = 1 << 7,
RX_ATTENTION_FLAGS_MGMT_TYPE = 1 << 8,
RX_ATTENTION_FLAGS_CTRL_TYPE = 1 << 9,
RX_ATTENTION_FLAGS_MORE_DATA = 1 << 10,
RX_ATTENTION_FLAGS_EOSP = 1 << 11,
RX_ATTENTION_FLAGS_U_APSD_TRIGGER = 1 << 12,
RX_ATTENTION_FLAGS_FRAGMENT = 1 << 13,
RX_ATTENTION_FLAGS_ORDER = 1 << 14,
RX_ATTENTION_FLAGS_CLASSIFICATION = 1 << 15,
RX_ATTENTION_FLAGS_OVERFLOW_ERR = 1 << 16,
RX_ATTENTION_FLAGS_MSDU_LENGTH_ERR = 1 << 17,
RX_ATTENTION_FLAGS_TCP_UDP_CHKSUM_FAIL = 1 << 18,
RX_ATTENTION_FLAGS_IP_CHKSUM_FAIL = 1 << 19,
RX_ATTENTION_FLAGS_SA_IDX_INVALID = 1 << 20,
RX_ATTENTION_FLAGS_DA_IDX_INVALID = 1 << 21,
RX_ATTENTION_FLAGS_SA_IDX_TIMEOUT = 1 << 22,
RX_ATTENTION_FLAGS_DA_IDX_TIMEOUT = 1 << 23,
RX_ATTENTION_FLAGS_ENCRYPT_REQUIRED = 1 << 24,
RX_ATTENTION_FLAGS_DIRECTED = 1 << 25,
RX_ATTENTION_FLAGS_BUFFER_FRAGMENT = 1 << 26,
RX_ATTENTION_FLAGS_MPDU_LENGTH_ERR = 1 << 27,
RX_ATTENTION_FLAGS_TKIP_MIC_ERR = 1 << 28,
RX_ATTENTION_FLAGS_DECRYPT_ERR = 1 << 29,
RX_ATTENTION_FLAGS_FCS_ERR = 1 << 30,
RX_ATTENTION_FLAGS_MSDU_DONE = 1 << 31,
};
struct rx_attention {
__le32 flags; /* %RX_ATTENTION_FLAGS_ */
} __packed;
/*
* Indicates the first MSDU of the PPDU.
*/
struct rx_frag_info {
u8 ring0_more_count;
u8 ring1_more_count;
u8 ring2_more_count;
u8 ring3_more_count;
} __packed;
/*
* ring0_more_count
* Indicates the number of more buffers associated with RX DMA
* ring 0. Field is filled in by the RX_DMA.
*
* ring1_more_count
* Indicates the number of more buffers associated with RX DMA
* ring 1. Field is filled in by the RX_DMA.
*
* ring2_more_count
* Indicates the number of more buffers associated with RX DMA
* ring 2. Field is filled in by the RX_DMA.
*
* ring3_more_count
* Indicates the number of more buffers associated with RX DMA
* ring 3. Field is filled in by the RX_DMA.
*/
enum htt_rx_mpdu_encrypt_type {
HTT_RX_MPDU_ENCRYPT_WEP40 = 0,
HTT_RX_MPDU_ENCRYPT_WEP104 = 1,
HTT_RX_MPDU_ENCRYPT_TKIP_WITHOUT_MIC = 2,
HTT_RX_MPDU_ENCRYPT_WEP128 = 3,
HTT_RX_MPDU_ENCRYPT_TKIP_WPA = 4,
HTT_RX_MPDU_ENCRYPT_WAPI = 5,
HTT_RX_MPDU_ENCRYPT_AES_CCM_WPA2 = 6,
HTT_RX_MPDU_ENCRYPT_NONE = 7,
};
#define RX_MPDU_START_INFO0_PEER_IDX_MASK 0x000007ff
#define RX_MPDU_START_INFO0_PEER_IDX_LSB 0
#define RX_MPDU_START_INFO0_SEQ_NUM_MASK 0x0fff0000
#define RX_MPDU_START_INFO0_SEQ_NUM_LSB 16
#define RX_MPDU_START_INFO0_ENCRYPT_TYPE_MASK 0xf0000000
#define RX_MPDU_START_INFO0_ENCRYPT_TYPE_LSB 28
#define RX_MPDU_START_INFO0_FROM_DS (1 << 11)
#define RX_MPDU_START_INFO0_TO_DS (1 << 12)
#define RX_MPDU_START_INFO0_ENCRYPTED (1 << 13)
#define RX_MPDU_START_INFO0_RETRY (1 << 14)
#define RX_MPDU_START_INFO0_TXBF_H_INFO (1 << 15)
#define RX_MPDU_START_INFO1_TID_MASK 0xf0000000
#define RX_MPDU_START_INFO1_TID_LSB 28
#define RX_MPDU_START_INFO1_DIRECTED (1 << 16)
struct rx_mpdu_start {
__le32 info0;
union {
struct {
__le32 pn31_0;
__le32 info1; /* %RX_MPDU_START_INFO1_ */
} __packed;
struct {
u8 pn[6];
} __packed;
} __packed;
} __packed;
/*
* peer_idx
* The index of the address search table which associated with
* the peer table entry corresponding to this MPDU. Only valid
* when first_msdu is set.
*
* fr_ds
* Set if the from DS bit is set in the frame control. Only
* valid when first_msdu is set.
*
* to_ds
* Set if the to DS bit is set in the frame control. Only
* valid when first_msdu is set.
*
* encrypted
* Protected bit from the frame control. Only valid when
* first_msdu is set.
*
* retry
* Retry bit from the frame control. Only valid when
* first_msdu is set.
*
* txbf_h_info
* The MPDU data will contain H information. Primarily used
* for debug.
*
* seq_num
* The sequence number from the 802.11 header. Only valid when
* first_msdu is set.
*
* encrypt_type
* Indicates type of decrypt cipher used (as defined in the
* peer table)
* 0: WEP40
* 1: WEP104
* 2: TKIP without MIC
* 3: WEP128
* 4: TKIP (WPA)
* 5: WAPI
* 6: AES-CCM (WPA2)
* 7: No cipher
* Only valid when first_msdu_is set
*
* pn_31_0
* Bits [31:0] of the PN number extracted from the IV field
* WEP: IV = {key_id_octet, pn2, pn1, pn0}. Only pn[23:0] is
* valid.
* TKIP: IV = {pn5, pn4, pn3, pn2, key_id_octet, pn0,
* WEPSeed[1], pn1}. Only pn[47:0] is valid.
* AES-CCM: IV = {pn5, pn4, pn3, pn2, key_id_octet, 0x0, pn1,
* pn0}. Only pn[47:0] is valid.
* WAPI: IV = {key_id_octet, 0x0, pn15, pn14, pn13, pn12, pn11,
* pn10, pn9, pn8, pn7, pn6, pn5, pn4, pn3, pn2, pn1, pn0}.
* The ext_wapi_pn[127:48] in the rx_msdu_misc descriptor and
* pn[47:0] are valid.
* Only valid when first_msdu is set.
*
* pn_47_32
* Bits [47:32] of the PN number. See description for
* pn_31_0. The remaining PN fields are in the rx_msdu_end
* descriptor
*
* pn
* Use this field to access the pn without worrying about
* byte-order and bitmasking/bitshifting.
*
* directed
* See definition in RX attention descriptor
*
* reserved_2
* Reserved: HW should fill with zero. FW should ignore.
*
* tid
* The TID field in the QoS control field
*/
#define RX_MPDU_END_INFO0_RESERVED_0_MASK 0x00001fff
#define RX_MPDU_END_INFO0_RESERVED_0_LSB 0
#define RX_MPDU_END_INFO0_POST_DELIM_CNT_MASK 0x0fff0000
#define RX_MPDU_END_INFO0_POST_DELIM_CNT_LSB 16
#define RX_MPDU_END_INFO0_OVERFLOW_ERR (1 << 13)
#define RX_MPDU_END_INFO0_LAST_MPDU (1 << 14)
#define RX_MPDU_END_INFO0_POST_DELIM_ERR (1 << 15)
#define RX_MPDU_END_INFO0_MPDU_LENGTH_ERR (1 << 28)
#define RX_MPDU_END_INFO0_TKIP_MIC_ERR (1 << 29)
#define RX_MPDU_END_INFO0_DECRYPT_ERR (1 << 30)
#define RX_MPDU_END_INFO0_FCS_ERR (1 << 31)
struct rx_mpdu_end {
__le32 info0;
} __packed;
/*
* reserved_0
* Reserved
*
* overflow_err
* PCU Receive FIFO does not have enough space to store the
* full receive packet. Enough space is reserved in the
* receive FIFO for the status is written. This MPDU remaining
* packets in the PPDU will be filtered and no Ack response
* will be transmitted.
*
* last_mpdu
* Indicates that this is the last MPDU of a PPDU.
*
* post_delim_err
* Indicates that a delimiter FCS error occurred after this
* MPDU before the next MPDU. Only valid when last_msdu is
* set.
*
* post_delim_cnt
* Count of the delimiters after this MPDU. This requires the
* last MPDU to be held until all the EOF descriptors have been
* received. This may be inefficient in the future when
* ML-MIMO is used. Only valid when last_mpdu is set.
*
* mpdu_length_err
* See definition in RX attention descriptor
*
* tkip_mic_err
* See definition in RX attention descriptor
*
* decrypt_err
* See definition in RX attention descriptor
*
* fcs_err
* See definition in RX attention descriptor
*/
#define RX_MSDU_START_INFO0_MSDU_LENGTH_MASK 0x00003fff
#define RX_MSDU_START_INFO0_MSDU_LENGTH_LSB 0
#define RX_MSDU_START_INFO0_IP_OFFSET_MASK 0x000fc000
#define RX_MSDU_START_INFO0_IP_OFFSET_LSB 14
#define RX_MSDU_START_INFO0_RING_MASK_MASK 0x00f00000
#define RX_MSDU_START_INFO0_RING_MASK_LSB 20
#define RX_MSDU_START_INFO0_TCP_UDP_OFFSET_MASK 0x7f000000
#def
