From cf495496b688cd4672bf87aaaf0c833bda8825f3 Mon Sep 17 00:00:00 2001 From: Golan Ben Ami Date: Sun, 4 Feb 2018 16:38:10 +0200 Subject: [PATCH] iwlwifi: introduce new rx structures used by 22560 RFH 22560 devices RFH uses different structures, which act similar to the legacy rxq management lists - free and used list. The iwl_rx_transfer_desc struct is part of the free list, and consists of pointers to the empty rb's the driver wants to pass to the fw. The iwl_rx_completion_desc struct is part of the used list, and consists of pointers to the buffer the fw filled up with new rx, both commands and data, for the host. Signed-off-by: Golan Ben Ami Signed-off-by: Luca Coelho --- .../wireless/intel/iwlwifi/pcie/internal.h | 100 ++++++++++++++++++ 1 file changed, 100 insertions(+) diff --git a/drivers/net/wireless/intel/iwlwifi/pcie/internal.h b/drivers/net/wireless/intel/iwlwifi/pcie/internal.h index 3b86e50965f4..11687dc4039d 100644 --- a/drivers/net/wireless/intel/iwlwifi/pcie/internal.h +++ b/drivers/net/wireless/intel/iwlwifi/pcie/internal.h @@ -99,6 +99,106 @@ struct isr_statistics { u32 unhandled; }; +#define IWL_CD_STTS_OPTIMIZED_POS 0 +#define IWL_CD_STTS_OPTIMIZED_MSK 0x01 +#define IWL_CD_STTS_TRANSFER_STATUS_POS 1 +#define IWL_CD_STTS_TRANSFER_STATUS_MSK 0x0E +#define IWL_CD_STTS_WIFI_STATUS_POS 4 +#define IWL_CD_STTS_WIFI_STATUS_MSK 0xF0 + +/** + * enum iwl_completion_desc_transfer_status - transfer status (bits 1-3) + * @IWL_CD_STTS_END_TRANSFER: successful transfer complete. + * In sniffer mode, when split is used, set in last CD completion. (RX) + * @IWL_CD_STTS_OVERFLOW: In sniffer mode, when using split - used for + * all CD completion. (RX) + * @IWL_CD_STTS_ABORTED: CR abort / close flow. (RX) + */ +enum iwl_completion_desc_transfer_status { + IWL_CD_STTS_UNUSED, + IWL_CD_STTS_UNUSED_2, + IWL_CD_STTS_END_TRANSFER, + IWL_CD_STTS_OVERFLOW, + IWL_CD_STTS_ABORTED, + IWL_CD_STTS_ERROR, +}; + +/** + * enum iwl_completion_desc_wifi_status - wifi status (bits 4-7) + * @IWL_CD_STTS_VALID: the packet is valid (RX) + * @IWL_CD_STTS_FCS_ERR: frame check sequence error (RX) + * @IWL_CD_STTS_SEC_KEY_ERR: error handling the security key of rx (RX) + * @IWL_CD_STTS_DECRYPTION_ERR: error decrypting the frame (RX) + * @IWL_CD_STTS_DUP: duplicate packet (RX) + * @IWL_CD_STTS_ICV_MIC_ERR: MIC error (RX) + * @IWL_CD_STTS_INTERNAL_SNAP_ERR: problems removing the snap (RX) + * @IWL_CD_STTS_SEC_PORT_FAIL: security port fail (RX) + * @IWL_CD_STTS_BA_OLD_SN: block ack received old SN (RX) + * @IWL_CD_STTS_QOS_NULL: QoS null packet (RX) + * @IWL_CD_STTS_MAC_HDR_ERR: MAC header conversion error (RX) + * @IWL_CD_STTS_MAX_RETRANS: reached max number of retransmissions (TX) + * @IWL_CD_STTS_EX_LIFETIME: exceeded lifetime (TX) + * @IWL_CD_STTS_NOT_USED: completed but not used (RX) + * @IWL_CD_STTS_REPLAY_ERR: pn check failed, replay error (RX) + */ +enum iwl_completion_desc_wifi_status { + IWL_CD_STTS_VALID, + IWL_CD_STTS_FCS_ERR, + IWL_CD_STTS_SEC_KEY_ERR, + IWL_CD_STTS_DECRYPTION_ERR, + IWL_CD_STTS_DUP, + IWL_CD_STTS_ICV_MIC_ERR, + IWL_CD_STTS_INTERNAL_SNAP_ERR, + IWL_CD_STTS_SEC_PORT_FAIL, + IWL_CD_STTS_BA_OLD_SN, + IWL_CD_STTS_QOS_NULL, + IWL_CD_STTS_MAC_HDR_ERR, + IWL_CD_STTS_MAX_RETRANS, + IWL_CD_STTS_EX_LIFETIME, + IWL_CD_STTS_NOT_USED, + IWL_CD_STTS_REPLAY_ERR, +}; + +#define IWL_RX_TD_TYPE 0xff000000 +#define IWL_RX_TD_SIZE 0x00ffffff + +/** + * struct iwl_rx_transfer_desc - transfer descriptor + * @type_n_size: buffer type (bit 0: external buff valid, + * bit 1: optional footer valid, bit 2-7: reserved) + * and buffer size + * @addr: ptr to free buffer start address + * @rbid: unique tag of the buffer + * @reserved: reserved + */ +struct iwl_rx_transfer_desc { + __le32 type_n_size; + __le64 addr; + __le16 rbid; + __le16 reserved; +} __packed; + +#define IWL_RX_CD_SIZE 0xffffff00 + +/** + * struct iwl_rx_completion_desc - completion descriptor + * @type: buffer type (bit 0: external buff valid, + * bit 1: optional footer valid, bit 2-7: reserved) + * @status: status of the completion + * @reserved1: reserved + * @rbid: unique tag of the received buffer + * @size: buffer size, masked by IWL_RX_CD_SIZE + * @reserved2: reserved + */ +struct iwl_rx_completion_desc { + u8 type; + u8 status; + __le16 reserved1; + __le16 rbid; + __le32 size; + u8 reserved2[22]; +} __packed; + /** * struct iwl_rxq - Rx queue * @id: queue index -- 2.30.2