rx_desc.rar_The First

#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