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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 <golan.ben.ami@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
This commit is contained in:
Golan Ben Ami 2018-02-04 16:38:10 +02:00 committed by Luca Coelho
parent a0ec0169b7
commit cf495496b6
1 changed files with 100 additions and 0 deletions
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100
drivers/net/wireless/intel/iwlwifi/pcie/internal.h
View File

@ -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