423 lines
12 KiB
C
423 lines
12 KiB
C
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/*
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* QLogic FCoE Offload Driver
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* Copyright (c) 2016 Cavium Inc.
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*
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* This software is available under the terms of the GNU General Public License
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* (GPL) Version 2, available from the file COPYING in the main directory of
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* this source tree.
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*/
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#ifndef __QEDF_HSI__
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#define __QEDF_HSI__
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/*
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* Add include to common target
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*/
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#include <linux/qed/common_hsi.h>
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/*
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* Add include to common storage target
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*/
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#include <linux/qed/storage_common.h>
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/*
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* Add include to common fcoe target for both eCore and protocol driver
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*/
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#include <linux/qed/fcoe_common.h>
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/*
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* FCoE CQ element ABTS information
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*/
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struct fcoe_abts_info {
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u8 r_ctl /* R_CTL in the ABTS response frame */;
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u8 reserved0;
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__le16 rx_id;
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__le32 reserved2[2];
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__le32 fc_payload[3] /* ABTS FC payload response frame */;
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};
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/*
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* FCoE class type
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*/
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enum fcoe_class_type {
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FCOE_TASK_CLASS_TYPE_3,
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FCOE_TASK_CLASS_TYPE_2,
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MAX_FCOE_CLASS_TYPE
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};
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/*
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* FCoE CMDQ element control information
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*/
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struct fcoe_cmdqe_control {
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__le16 conn_id;
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u8 num_additional_cmdqes;
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u8 cmdType;
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/* true for ABTS request cmdqe. used in Target mode */
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#define FCOE_CMDQE_CONTROL_ABTSREQCMD_MASK 0x1
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#define FCOE_CMDQE_CONTROL_ABTSREQCMD_SHIFT 0
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#define FCOE_CMDQE_CONTROL_RESERVED1_MASK 0x7F
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#define FCOE_CMDQE_CONTROL_RESERVED1_SHIFT 1
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u8 reserved2[4];
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};
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/*
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* FCoE control + payload CMDQ element
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*/
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struct fcoe_cmdqe {
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struct fcoe_cmdqe_control hdr;
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u8 fc_header[24];
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__le32 fcp_cmd_payload[8];
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};
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/*
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* FCP RSP flags
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*/
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struct fcoe_fcp_rsp_flags {
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u8 flags;
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#define FCOE_FCP_RSP_FLAGS_FCP_RSP_LEN_VALID_MASK 0x1
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#define FCOE_FCP_RSP_FLAGS_FCP_RSP_LEN_VALID_SHIFT 0
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#define FCOE_FCP_RSP_FLAGS_FCP_SNS_LEN_VALID_MASK 0x1
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#define FCOE_FCP_RSP_FLAGS_FCP_SNS_LEN_VALID_SHIFT 1
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#define FCOE_FCP_RSP_FLAGS_FCP_RESID_OVER_MASK 0x1
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#define FCOE_FCP_RSP_FLAGS_FCP_RESID_OVER_SHIFT 2
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#define FCOE_FCP_RSP_FLAGS_FCP_RESID_UNDER_MASK 0x1
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#define FCOE_FCP_RSP_FLAGS_FCP_RESID_UNDER_SHIFT 3
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#define FCOE_FCP_RSP_FLAGS_FCP_CONF_REQ_MASK 0x1
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#define FCOE_FCP_RSP_FLAGS_FCP_CONF_REQ_SHIFT 4
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#define FCOE_FCP_RSP_FLAGS_FCP_BIDI_FLAGS_MASK 0x7
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#define FCOE_FCP_RSP_FLAGS_FCP_BIDI_FLAGS_SHIFT 5
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};
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/*
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* FCoE CQ element response information
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*/
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struct fcoe_cqe_rsp_info {
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struct fcoe_fcp_rsp_flags rsp_flags;
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u8 scsi_status_code;
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__le16 retry_delay_timer;
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__le32 fcp_resid;
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__le32 fcp_sns_len;
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__le32 fcp_rsp_len;
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__le16 rx_id;
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u8 fw_error_flags;
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#define FCOE_CQE_RSP_INFO_FW_UNDERRUN_MASK 0x1 /* FW detected underrun */
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#define FCOE_CQE_RSP_INFO_FW_UNDERRUN_SHIFT 0
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#define FCOE_CQE_RSP_INFO_RESREVED_MASK 0x7F
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#define FCOE_CQE_RSP_INFO_RESREVED_SHIFT 1
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u8 reserved;
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__le32 fw_residual /* Residual bytes calculated by FW */;
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};
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/*
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* FCoE CQ element Target completion information
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*/
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struct fcoe_cqe_target_info {
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__le16 rx_id;
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__le16 reserved0;
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__le32 reserved1[5];
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};
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/*
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* FCoE error/warning reporting entry
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*/
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struct fcoe_err_report_entry {
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__le32 err_warn_bitmap_lo /* Error bitmap lower 32 bits */;
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__le32 err_warn_bitmap_hi /* Error bitmap higher 32 bits */;
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/* Buffer offset the beginning of the Sequence last transmitted */
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__le32 tx_buf_off;
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/* Buffer offset from the beginning of the Sequence last received */
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__le32 rx_buf_off;
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__le16 rx_id /* RX_ID of the associated task */;
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__le16 reserved1;
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__le32 reserved2;
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};
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/*
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* FCoE CQ element middle path information
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*/
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struct fcoe_cqe_midpath_info {
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__le32 data_placement_size;
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__le16 rx_id;
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__le16 reserved0;
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__le32 reserved1[4];
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};
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/*
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* FCoE CQ element unsolicited information
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*/
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struct fcoe_unsolic_info {
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/* BD information: Physical address and opaque data */
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struct scsi_bd bd_info;
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__le16 conn_id /* Connection ID the frame is associated to */;
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__le16 pkt_len /* Packet length */;
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u8 reserved1[4];
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};
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/*
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* FCoE warning reporting entry
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*/
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struct fcoe_warning_report_entry {
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/* BD information: Physical address and opaque data */
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struct scsi_bd bd_info;
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/* Buffer offset the beginning of the Sequence last transmitted */
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__le32 buf_off;
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__le16 rx_id /* RX_ID of the associated task */;
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__le16 reserved1;
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};
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/*
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* FCoE CQ element information
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*/
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union fcoe_cqe_info {
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struct fcoe_cqe_rsp_info rsp_info /* Response completion information */;
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/* Target completion information */
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struct fcoe_cqe_target_info target_info;
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/* Error completion information */
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struct fcoe_err_report_entry err_info;
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struct fcoe_abts_info abts_info /* ABTS completion information */;
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/* Middle path completion information */
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struct fcoe_cqe_midpath_info midpath_info;
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/* Unsolicited packet completion information */
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struct fcoe_unsolic_info unsolic_info;
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/* Warning completion information (Rec Tov expiration) */
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struct fcoe_warning_report_entry warn_info;
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};
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/*
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* FCoE CQ element
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*/
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struct fcoe_cqe {
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__le32 cqe_data;
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/* The task identifier (OX_ID) to be completed */
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#define FCOE_CQE_TASK_ID_MASK 0xFFFF
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#define FCOE_CQE_TASK_ID_SHIFT 0
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/*
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* The CQE type: 0x0 Indicating on a pending work request completion.
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* 0x1 - Indicating on an unsolicited event notification. use enum
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* fcoe_cqe_type (use enum fcoe_cqe_type)
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*/
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#define FCOE_CQE_CQE_TYPE_MASK 0xF
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#define FCOE_CQE_CQE_TYPE_SHIFT 16
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#define FCOE_CQE_RESERVED0_MASK 0xFFF
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#define FCOE_CQE_RESERVED0_SHIFT 20
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__le16 reserved1;
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__le16 fw_cq_prod;
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union fcoe_cqe_info cqe_info;
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};
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/*
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* FCoE CQE type
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*/
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enum fcoe_cqe_type {
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/* solicited response on a R/W or middle-path SQE */
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FCOE_GOOD_COMPLETION_CQE_TYPE,
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FCOE_UNSOLIC_CQE_TYPE /* unsolicited packet, RQ consumed */,
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FCOE_ERROR_DETECTION_CQE_TYPE /* timer expiration, validation error */,
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FCOE_WARNING_CQE_TYPE /* rec_tov or rr_tov timer expiration */,
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FCOE_EXCH_CLEANUP_CQE_TYPE /* task cleanup completed */,
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FCOE_ABTS_CQE_TYPE /* ABTS received and task cleaned */,
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FCOE_DUMMY_CQE_TYPE /* just increment SQ CONS */,
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/* Task was completed wight after sending a pkt to the target */
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FCOE_LOCAL_COMP_CQE_TYPE,
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MAX_FCOE_CQE_TYPE
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};
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/*
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* FCoE device type
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*/
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enum fcoe_device_type {
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FCOE_TASK_DEV_TYPE_DISK,
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FCOE_TASK_DEV_TYPE_TAPE,
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MAX_FCOE_DEVICE_TYPE
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};
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/*
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* FCoE fast path error codes
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*/
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enum fcoe_fp_error_warning_code {
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FCOE_ERROR_CODE_XFER_OOO_RO /* XFER error codes */,
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FCOE_ERROR_CODE_XFER_RO_NOT_ALIGNED,
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FCOE_ERROR_CODE_XFER_NULL_BURST_LEN,
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FCOE_ERROR_CODE_XFER_RO_GREATER_THAN_DATA2TRNS,
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FCOE_ERROR_CODE_XFER_INVALID_PAYLOAD_SIZE,
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FCOE_ERROR_CODE_XFER_TASK_TYPE_NOT_WRITE,
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FCOE_ERROR_CODE_XFER_PEND_XFER_SET,
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FCOE_ERROR_CODE_XFER_OPENED_SEQ,
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FCOE_ERROR_CODE_XFER_FCTL,
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FCOE_ERROR_CODE_FCP_RSP_BIDI_FLAGS_SET /* FCP RSP error codes */,
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FCOE_ERROR_CODE_FCP_RSP_INVALID_LENGTH_FIELD,
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FCOE_ERROR_CODE_FCP_RSP_INVALID_SNS_FIELD,
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FCOE_ERROR_CODE_FCP_RSP_INVALID_PAYLOAD_SIZE,
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FCOE_ERROR_CODE_FCP_RSP_PEND_XFER_SET,
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FCOE_ERROR_CODE_FCP_RSP_OPENED_SEQ,
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FCOE_ERROR_CODE_FCP_RSP_FCTL,
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FCOE_ERROR_CODE_FCP_RSP_LAST_SEQ_RESET,
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FCOE_ERROR_CODE_FCP_RSP_CONF_REQ_NOT_SUPPORTED_YET,
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FCOE_ERROR_CODE_DATA_OOO_RO /* FCP DATA error codes */,
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FCOE_ERROR_CODE_DATA_EXCEEDS_DEFINED_MAX_FRAME_SIZE,
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FCOE_ERROR_CODE_DATA_EXCEEDS_DATA2TRNS,
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FCOE_ERROR_CODE_DATA_SOFI3_SEQ_ACTIVE_SET,
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FCOE_ERROR_CODE_DATA_SOFN_SEQ_ACTIVE_RESET,
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FCOE_ERROR_CODE_DATA_EOFN_END_SEQ_SET,
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FCOE_ERROR_CODE_DATA_EOFT_END_SEQ_RESET,
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FCOE_ERROR_CODE_DATA_TASK_TYPE_NOT_READ,
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FCOE_ERROR_CODE_DATA_FCTL_INITIATIR,
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FCOE_ERROR_CODE_MIDPATH_INVALID_TYPE /* Middle path error codes */,
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FCOE_ERROR_CODE_MIDPATH_SOFI3_SEQ_ACTIVE_SET,
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FCOE_ERROR_CODE_MIDPATH_SOFN_SEQ_ACTIVE_RESET,
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FCOE_ERROR_CODE_MIDPATH_EOFN_END_SEQ_SET,
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FCOE_ERROR_CODE_MIDPATH_EOFT_END_SEQ_RESET,
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FCOE_ERROR_CODE_MIDPATH_REPLY_FCTL,
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FCOE_ERROR_CODE_MIDPATH_INVALID_REPLY,
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FCOE_ERROR_CODE_MIDPATH_ELS_REPLY_RCTL,
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FCOE_ERROR_CODE_COMMON_MIDDLE_FRAME_WITH_PAD /* Common error codes */,
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FCOE_ERROR_CODE_COMMON_SEQ_INIT_IN_TCE,
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FCOE_ERROR_CODE_COMMON_FC_HDR_RX_ID_MISMATCH,
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FCOE_ERROR_CODE_COMMON_INCORRECT_SEQ_CNT,
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FCOE_ERROR_CODE_COMMON_DATA_FC_HDR_FCP_TYPE_MISMATCH,
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FCOE_ERROR_CODE_COMMON_DATA_NO_MORE_SGES,
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FCOE_ERROR_CODE_COMMON_OPTIONAL_FC_HDR,
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FCOE_ERROR_CODE_COMMON_READ_TCE_OX_ID_TOO_BIG,
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FCOE_ERROR_CODE_COMMON_DATA_WAS_NOT_TRANSMITTED,
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FCOE_ERROR_CODE_COMMON_TASK_DDF_RCTL_INFO_FIELD,
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FCOE_ERROR_CODE_COMMON_TASK_INVALID_RCTL,
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FCOE_ERROR_CODE_COMMON_TASK_RCTL_GENERAL_MISMATCH,
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FCOE_ERROR_CODE_E_D_TOV_TIMER_EXPIRATION /* Timer error codes */,
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FCOE_WARNING_CODE_REC_TOV_TIMER_EXPIRATION /* Timer error codes */,
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FCOE_ERROR_CODE_RR_TOV_TIMER_EXPIRATION /* Timer error codes */,
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/* ABTSrsp pckt arrived unexpected */
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FCOE_ERROR_CODE_ABTS_REPLY_UNEXPECTED,
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FCOE_ERROR_CODE_TARGET_MODE_FCP_RSP,
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FCOE_ERROR_CODE_TARGET_MODE_FCP_XFER,
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FCOE_ERROR_CODE_TARGET_MODE_DATA_TASK_TYPE_NOT_WRITE,
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FCOE_ERROR_CODE_DATA_FCTL_TARGET,
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FCOE_ERROR_CODE_TARGET_DATA_SIZE_NO_MATCH_XFER,
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FCOE_ERROR_CODE_TARGET_DIF_CRC_CHECKSUM_ERROR,
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FCOE_ERROR_CODE_TARGET_DIF_REF_TAG_ERROR,
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FCOE_ERROR_CODE_TARGET_DIF_APP_TAG_ERROR,
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MAX_FCOE_FP_ERROR_WARNING_CODE
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};
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/*
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* FCoE RESPQ element
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*/
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struct fcoe_respqe {
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__le16 ox_id /* OX_ID that is located in the FCP_RSP FC header */;
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__le16 rx_id /* RX_ID that is located in the FCP_RSP FC header */;
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__le32 additional_info;
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/* PARAM that is located in the FCP_RSP FC header */
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#define FCOE_RESPQE_PARAM_MASK 0xFFFFFF
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#define FCOE_RESPQE_PARAM_SHIFT 0
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/* Indication whther its Target-auto-rsp mode or not */
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#define FCOE_RESPQE_TARGET_AUTO_RSP_MASK 0xFF
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#define FCOE_RESPQE_TARGET_AUTO_RSP_SHIFT 24
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};
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/*
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* FCoE slow path error codes
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*/
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enum fcoe_sp_error_code {
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/* Error codes for Error Reporting in slow path flows */
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FCOE_ERROR_CODE_SLOW_PATH_TOO_MANY_FUNCS,
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||
|
|
FCOE_ERROR_SLOW_PATH_CODE_NO_LICENSE,
|
||
|
|
MAX_FCOE_SP_ERROR_CODE
|
||
|
|
};
|
||
|
|
|
||
|
|
|
||
|
|
/*
|
||
|
|
* FCoE SQE request type
|
||
|
|
*/
|
||
|
|
enum fcoe_sqe_request_type {
|
||
|
|
SEND_FCOE_CMD,
|
||
|
|
SEND_FCOE_MIDPATH,
|
||
|
|
SEND_FCOE_ABTS_REQUEST,
|
||
|
|
FCOE_EXCHANGE_CLEANUP,
|
||
|
|
FCOE_SEQUENCE_RECOVERY,
|
||
|
|
SEND_FCOE_XFER_RDY,
|
||
|
|
SEND_FCOE_RSP,
|
||
|
|
SEND_FCOE_RSP_WITH_SENSE_DATA,
|
||
|
|
SEND_FCOE_TARGET_DATA,
|
||
|
|
SEND_FCOE_INITIATOR_DATA,
|
||
|
|
/*
|
||
|
|
* Xfer Continuation (==1) ready to be sent. Previous XFERs data
|
||
|
|
* received successfully.
|
||
|
|
*/
|
||
|
|
SEND_FCOE_XFER_CONTINUATION_RDY,
|
||
|
|
SEND_FCOE_TARGET_ABTS_RSP,
|
||
|
|
MAX_FCOE_SQE_REQUEST_TYPE
|
||
|
|
};
|
||
|
|
|
||
|
|
|
||
|
|
/*
|
||
|
|
* FCoE task TX state
|
||
|
|
*/
|
||
|
|
enum fcoe_task_tx_state {
|
||
|
|
/* Initiate state after driver has initialized the task */
|
||
|
|
FCOE_TASK_TX_STATE_NORMAL,
|
||
|
|
/* Updated by TX path after complete transmitting unsolicited packet */
|
||
|
|
FCOE_TASK_TX_STATE_UNSOLICITED_COMPLETED,
|
||
|
|
/*
|
||
|
|
* Updated by TX path after start processing the task requesting the
|
||
|
|
* cleanup/abort operation
|
||
|
|
*/
|
||
|
|
FCOE_TASK_TX_STATE_CLEAN_REQ,
|
||
|
|
FCOE_TASK_TX_STATE_ABTS /* Updated by TX path during abort procedure */,
|
||
|
|
/* Updated by TX path during exchange cleanup procedure */
|
||
|
|
FCOE_TASK_TX_STATE_EXCLEANUP,
|
||
|
|
/*
|
||
|
|
* Updated by TX path during exchange cleanup continuation task
|
||
|
|
* procedure
|
||
|
|
*/
|
||
|
|
FCOE_TASK_TX_STATE_EXCLEANUP_TARGET_WRITE_CONT,
|
||
|
|
/* Updated by TX path during exchange cleanup first xfer procedure */
|
||
|
|
FCOE_TASK_TX_STATE_EXCLEANUP_TARGET_WRITE,
|
||
|
|
/* Updated by TX path during exchange cleanup read task in Target */
|
||
|
|
FCOE_TASK_TX_STATE_EXCLEANUP_TARGET_READ_OR_RSP,
|
||
|
|
/* Updated by TX path during target exchange cleanup procedure */
|
||
|
|
FCOE_TASK_TX_STATE_EXCLEANUP_TARGET_WRITE_LAST_CYCLE,
|
||
|
|
/* Updated by TX path during sequence recovery procedure */
|
||
|
|
FCOE_TASK_TX_STATE_SEQRECOVERY,
|
||
|
|
MAX_FCOE_TASK_TX_STATE
|
||
|
|
};
|
||
|
|
|
||
|
|
|
||
|
|
/*
|
||
|
|
* FCoE task type
|
||
|
|
*/
|
||
|
|
enum fcoe_task_type {
|
||
|
|
FCOE_TASK_TYPE_WRITE_INITIATOR,
|
||
|
|
FCOE_TASK_TYPE_READ_INITIATOR,
|
||
|
|
FCOE_TASK_TYPE_MIDPATH,
|
||
|
|
FCOE_TASK_TYPE_UNSOLICITED,
|
||
|
|
FCOE_TASK_TYPE_ABTS,
|
||
|
|
FCOE_TASK_TYPE_EXCHANGE_CLEANUP,
|
||
|
|
FCOE_TASK_TYPE_SEQUENCE_CLEANUP,
|
||
|
|
FCOE_TASK_TYPE_WRITE_TARGET,
|
||
|
|
FCOE_TASK_TYPE_READ_TARGET,
|
||
|
|
FCOE_TASK_TYPE_RSP,
|
||
|
|
FCOE_TASK_TYPE_RSP_SENSE_DATA,
|
||
|
|
FCOE_TASK_TYPE_ABTS_TARGET,
|
||
|
|
FCOE_TASK_TYPE_ENUM_SIZE,
|
||
|
|
MAX_FCOE_TASK_TYPE
|
||
|
|
};
|
||
|
|
|
||
|
|
struct scsi_glbl_queue_entry {
|
||
|
|
/* Start physical address for the RQ (receive queue) PBL. */
|
||
|
|
struct regpair rq_pbl_addr;
|
||
|
|
/* Start physical address for the CQ (completion queue) PBL. */
|
||
|
|
struct regpair cq_pbl_addr;
|
||
|
|
/* Start physical address for the CMDQ (command queue) PBL. */
|
||
|
|
struct regpair cmdq_pbl_addr;
|
||
|
|
};
|
||
|
|
|
||
|
|
#endif /* __QEDF_HSI__ */
|