9dba6a4ecb
to *not* do flow control based upon resource counts for the firmware. Increase default immediate notify count to 16. Change isp_target_async to a function returning an integer.
559 lines
16 KiB
C
559 lines
16 KiB
C
/* $FreeBSD$ */
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/*
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* Qlogic Target Mode Structure and Flag Definitions
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*
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* Copyright (c) 1997, 1998
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* Patrick Stirling
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* pms@psconsult.com
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* All rights reserved.
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*
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* Additional Copyright (c) 1999, 2000, 2001
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* Matthew Jacob
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* mjacob@feral.com
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* All rights reserved.
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*
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice immediately at the beginning of the file, without modification,
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* this list of conditions, and the following disclaimer.
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* 2. The name of the author may not be used to endorse or promote products
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* derived from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE FOR
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* ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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*/
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#ifndef _ISP_TARGET_H
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#define _ISP_TARGET_H
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/*
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* Defines for all entry types
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*/
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#define QLTM_SVALID 0x80
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#define QLTM_SENSELEN 18
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/*
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* Structure for Enable Lun and Modify Lun queue entries
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*/
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typedef struct {
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isphdr_t le_header;
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u_int32_t le_reserved;
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u_int8_t le_lun;
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u_int8_t le_rsvd;
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u_int8_t le_ops; /* Modify LUN only */
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u_int8_t le_tgt; /* Not for FC */
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u_int32_t le_flags; /* Not for FC */
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u_int8_t le_status;
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u_int8_t le_reserved2;
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u_int8_t le_cmd_count;
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u_int8_t le_in_count;
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u_int8_t le_cdb6len; /* Not for FC */
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u_int8_t le_cdb7len; /* Not for FC */
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u_int16_t le_timeout;
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u_int16_t le_reserved3[20];
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} lun_entry_t;
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/*
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* le_flags values
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*/
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#define LUN_TQAE 0x00000002 /* bit1 Tagged Queue Action Enable */
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#define LUN_DSSM 0x01000000 /* bit24 Disable Sending SDP Message */
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#define LUN_DISAD 0x02000000 /* bit25 Disable autodisconnect */
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#define LUN_DM 0x40000000 /* bit30 Disconnects Mandatory */
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/*
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* le_ops values
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*/
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#define LUN_CCINCR 0x01 /* increment command count */
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#define LUN_CCDECR 0x02 /* decrement command count */
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#define LUN_ININCR 0x40 /* increment immed. notify count */
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#define LUN_INDECR 0x80 /* decrement immed. notify count */
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/*
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* le_status values
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*/
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#define LUN_OK 0x01 /* we be rockin' */
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#define LUN_ERR 0x04 /* request completed with error */
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#define LUN_INVAL 0x06 /* invalid request */
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#define LUN_NOCAP 0x16 /* can't provide requested capability */
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#define LUN_ENABLED 0x3E /* LUN already enabled */
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/*
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* Immediate Notify Entry structure
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*/
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#define IN_MSGLEN 8 /* 8 bytes */
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#define IN_RSVDLEN 8 /* 8 words */
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typedef struct {
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isphdr_t in_header;
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u_int32_t in_reserved;
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u_int8_t in_lun; /* lun */
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u_int8_t in_iid; /* initiator */
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u_int8_t in_reserved2;
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u_int8_t in_tgt; /* target */
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u_int32_t in_flags;
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u_int8_t in_status;
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u_int8_t in_rsvd2;
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u_int8_t in_tag_val; /* tag value */
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u_int8_t in_tag_type; /* tag type */
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u_int16_t in_seqid; /* sequence id */
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u_int8_t in_msg[IN_MSGLEN]; /* SCSI message bytes */
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u_int16_t in_reserved3[IN_RSVDLEN];
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u_int8_t in_sense[QLTM_SENSELEN];/* suggested sense data */
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} in_entry_t;
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typedef struct {
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isphdr_t in_header;
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u_int32_t in_reserved;
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u_int8_t in_lun; /* lun */
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u_int8_t in_iid; /* initiator */
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u_int16_t in_scclun;
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u_int32_t in_reserved2;
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u_int16_t in_status;
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u_int16_t in_task_flags;
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u_int16_t in_seqid; /* sequence id */
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} in_fcentry_t;
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/*
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* Values for the in_status field
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*/
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#define IN_REJECT 0x0D /* Message Reject message received */
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#define IN_RESET 0x0E /* Bus Reset occurred */
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#define IN_NO_RCAP 0x16 /* requested capability not available */
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#define IN_IDE_RECEIVED 0x33 /* Initiator Detected Error msg received */
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#define IN_RSRC_UNAVAIL 0x34 /* resource unavailable */
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#define IN_MSG_RECEIVED 0x36 /* SCSI message received */
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#define IN_ABORT_TASK 0x20 /* task named in RX_ID is being aborted (FC) */
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#define IN_PORT_LOGOUT 0x29 /* port has logged out (FC) */
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#define IN_PORT_CHANGED 0x2A /* port changed */
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#define IN_GLOBAL_LOGO 0x2E /* all ports logged out */
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#define IN_NO_NEXUS 0x3B /* Nexus not established */
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/*
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* Values for the in_task_flags field- should only get one at a time!
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*/
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#define TASK_FLAGS_ABORT_TASK (1<<9)
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#define TASK_FLAGS_CLEAR_TASK_SET (1<<10)
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#define TASK_FLAGS_TARGET_RESET (1<<13)
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#define TASK_FLAGS_CLEAR_ACA (1<<14)
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#define TASK_FLAGS_TERMINATE_TASK (1<<15)
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#ifndef MSG_ABORT_TAG
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#define MSG_ABORT_TAG 0x06
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#endif
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#ifndef MSG_CLEAR_QUEUE
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#define MSG_CLEAR_QUEUE 0x0e
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#endif
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#ifndef MSG_BUS_DEV_RESET
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#define MSG_BUS_DEV_RESET 0x0b
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#endif
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#ifndef MSG_REL_RECOVERY
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#define MSG_REL_RECOVERY 0x10
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#endif
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#ifndef MSG_TERM_IO_PROC
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#define MSG_TERM_IO_PROC 0x11
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#endif
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/*
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* Notify Acknowledge Entry structure
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*/
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#define NA_RSVDLEN 22
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typedef struct {
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isphdr_t na_header;
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u_int32_t na_reserved;
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u_int8_t na_lun; /* lun */
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u_int8_t na_iid; /* initiator */
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u_int8_t na_reserved2;
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u_int8_t na_tgt; /* target */
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u_int32_t na_flags;
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u_int8_t na_status;
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u_int8_t na_event;
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u_int16_t na_seqid; /* sequence id */
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u_int16_t na_reserved3[NA_RSVDLEN];
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} na_entry_t;
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/*
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* Value for the na_event field
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*/
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#define NA_RST_CLRD 0x80 /* Clear an async event notification */
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#define NA_OK 0x01 /* Notify Acknowledge Succeeded */
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#define NA_INVALID 0x06 /* Invalid Notify Acknowledge */
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#define NA2_RSVDLEN 21
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typedef struct {
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isphdr_t na_header;
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u_int32_t na_reserved;
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u_int8_t na_lun; /* lun */
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u_int8_t na_iid; /* initiator */
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u_int16_t na_scclun;
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u_int16_t na_flags;
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u_int16_t na_reserved2;
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u_int16_t na_status;
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u_int16_t na_task_flags;
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u_int16_t na_seqid; /* sequence id */
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u_int16_t na_reserved3[NA2_RSVDLEN];
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} na_fcentry_t;
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#define NAFC_RCOUNT 0x80 /* increment resource count */
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#define NAFC_RST_CLRD 0x20 /* Clear LIP Reset */
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/*
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* Accept Target I/O Entry structure
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*/
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#define ATIO_CDBLEN 26
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typedef struct {
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isphdr_t at_header;
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u_int16_t at_reserved;
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u_int16_t at_handle;
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u_int8_t at_lun; /* lun */
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u_int8_t at_iid; /* initiator */
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u_int8_t at_cdblen; /* cdb length */
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u_int8_t at_tgt; /* target */
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u_int32_t at_flags;
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u_int8_t at_status; /* firmware status */
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u_int8_t at_scsi_status; /* scsi status */
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u_int8_t at_tag_val; /* tag value */
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u_int8_t at_tag_type; /* tag type */
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u_int8_t at_cdb[ATIO_CDBLEN]; /* received CDB */
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u_int8_t at_sense[QLTM_SENSELEN];/* suggested sense data */
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} at_entry_t;
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/*
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* at_flags values
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*/
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#define AT_NODISC 0x00008000 /* disconnect disabled */
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#define AT_TQAE 0x00000002 /* Tagged Queue Action enabled */
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/*
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* at_status values
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*/
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#define AT_PATH_INVALID 0x07 /* ATIO sent to firmware for disabled lun */
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#define AT_RESET 0x0E /* SCSI Bus Reset Occurred */
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#define AT_PHASE_ERROR 0x14 /* Bus phase sequence error */
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#define AT_NOCAP 0x16 /* Requested capability not available */
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#define AT_BDR_MSG 0x17 /* Bus Device Reset msg received */
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#define AT_CDB 0x3D /* CDB received */
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/*
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* Macros to create and fetch and test concatenated handle and tag value macros
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*/
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#define AT_MAKE_TAGID(tid, aep) \
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tid = ((aep)->at_handle << 16); \
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if ((aep)->at_flags & AT_TQAE) \
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(tid) |= ((aep)->at_tag_val + 1)
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#define CT_MAKE_TAGID(tid, ct) \
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tid = ((ct)->ct_fwhandle << 16); \
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if ((ct)->ct_flags & CT_TQAE) \
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(tid) |= ((ct)->ct_tag_val + 1)
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#define AT_HAS_TAG(val) ((val) & 0xffff)
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#define AT_GET_TAG(val) AT_HAS_TAG(val) - 1
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#define AT_GET_HANDLE(val) ((val) >> 16)
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/*
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* Accept Target I/O Entry structure, Type 2
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*/
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#define ATIO2_CDBLEN 16
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typedef struct {
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isphdr_t at_header;
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u_int32_t at_reserved;
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u_int8_t at_lun; /* lun or reserved */
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u_int8_t at_iid; /* initiator */
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u_int16_t at_rxid; /* response ID */
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u_int16_t at_flags;
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u_int16_t at_status; /* firmware status */
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u_int8_t at_reserved1;
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u_int8_t at_taskcodes;
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u_int8_t at_taskflags;
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u_int8_t at_execodes;
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u_int8_t at_cdb[ATIO2_CDBLEN]; /* received CDB */
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u_int32_t at_datalen; /* allocated data len */
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u_int16_t at_scclun; /* SCC Lun or reserved */
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u_int16_t at_wwpn[4]; /* WWPN of initiator */
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u_int16_t at_reserved2[6];
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u_int16_t at_oxid;
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} at2_entry_t;
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#define ATIO2_WWPN_OFFSET 0x2A
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#define ATIO2_OXID_OFFSET 0x3E
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#define ATIO2_TC_ATTR_MASK 0x7
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#define ATIO2_TC_ATTR_SIMPLEQ 0
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#define ATIO2_TC_ATTR_HEADOFQ 1
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#define ATIO2_TC_ATTR_ORDERED 2
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#define ATIO2_TC_ATTR_ACAQ 4
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#define ATIO2_TC_ATTR_UNTAGGED 5
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/*
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* Continue Target I/O Entry structure
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* Request from driver. The response from the
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* ISP firmware is the same except that the last 18
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* bytes are overwritten by suggested sense data if
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* the 'autosense valid' bit is set in the status byte.
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*/
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typedef struct {
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isphdr_t ct_header;
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u_int16_t ct_reserved;
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#define ct_syshandle ct_reserved /* we use this */
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u_int16_t ct_fwhandle; /* required by f/w */
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u_int8_t ct_lun; /* lun */
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u_int8_t ct_iid; /* initiator id */
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u_int8_t ct_reserved2;
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u_int8_t ct_tgt; /* our target id */
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u_int32_t ct_flags;
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u_int8_t ct_status; /* isp status */
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u_int8_t ct_scsi_status; /* scsi status */
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u_int8_t ct_tag_val; /* tag value */
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u_int8_t ct_tag_type; /* tag type */
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u_int32_t ct_xfrlen; /* transfer length */
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u_int32_t ct_resid; /* residual length */
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u_int16_t ct_timeout;
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u_int16_t ct_seg_count;
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/*
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* This is so we can share tag name space with
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* CTIO{2,3,4} with the minimum of pain.
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*/
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union {
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ispds_t ct_a[ISP_RQDSEG];
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} _u;
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#define ct_dataseg _u.ct_a
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} ct_entry_t;
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/*
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* For some of the dual port SCSI adapters, port (bus #) is reported
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* in the MSbit of ct_iid. Bit fields are a bit too awkward here.
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*
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* Note that this does not apply to FC adapters at all which can and
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* do report IIDs between 129 && 255 (these represent devices that have
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* logged in across a SCSI fabric).
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*/
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#define GET_IID_VAL(x) (x & 0x3f)
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#define GET_BUS_VAL(x) ((x >> 7) & 0x1)
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#define SET_IID_VAL(y, x) y = ((y & ~0x3f) | (x & 0x3f))
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#define SET_BUS_VAL(y, x) y = ((y & 0x3f) | ((x & 0x1) << 7))
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/*
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* ct_flags values
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*/
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#define CT_TQAE 0x00000002 /* bit 1, Tagged Queue Action enable */
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#define CT_DATA_IN 0x00000040 /* bits 6&7, Data direction */
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#define CT_DATA_OUT 0x00000080 /* bits 6&7, Data direction */
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#define CT_NO_DATA 0x000000C0 /* bits 6&7, Data direction */
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#define CT_CCINCR 0x00000100 /* bit 8, autoincrement atio count */
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#define CT_DATAMASK 0x000000C0 /* bits 6&7, Data direction */
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#define CT_INISYNCWIDE 0x00004000 /* bit 14, Do Sync/Wide Negotiation */
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#define CT_NODISC 0x00008000 /* bit 15, Disconnects disabled */
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#define CT_DSDP 0x01000000 /* bit 24, Disable Save Data Pointers */
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#define CT_SENDRDP 0x04000000 /* bit 26, Send Restore Pointers msg */
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#define CT_SENDSTATUS 0x80000000 /* bit 31, Send SCSI status byte */
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/*
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* ct_status values
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* - set by the firmware when it returns the CTIO
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*/
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#define CT_OK 0x01 /* completed without error */
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#define CT_ABORTED 0x02 /* aborted by host */
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#define CT_ERR 0x04 /* see sense data for error */
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#define CT_INVAL 0x06 /* request for disabled lun */
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#define CT_NOPATH 0x07 /* invalid ITL nexus */
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#define CT_INVRXID 0x08 /* (FC only) Invalid RX_ID */
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#define CT_DATA_OVER 0x09 /* (FC only) Data Overrun */
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#define CT_RSELTMO 0x0A /* reselection timeout after 2 tries */
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#define CT_TIMEOUT 0x0B /* timed out */
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#define CT_RESET 0x0E /* SCSI Bus Reset occurred */
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#define CT_PARITY 0x0F /* Uncorrectable Parity Error */
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#define CT_BUS_ERROR 0x10 /* (FC Only) DMA PCI Error */
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#define CT_PANIC 0x13 /* Unrecoverable Error */
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#define CT_PHASE_ERROR 0x14 /* Bus phase sequence error */
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#define CT_BDR_MSG 0x17 /* Bus Device Reset msg received */
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#define CT_DATA_UNDER 0x15 /* (FC only) Data Underrun */
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#define CT_TERMINATED 0x19 /* due to Terminate Transfer mbox cmd */
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#define CT_PORTNOTAVAIL 0x28 /* port not available */
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#define CT_LOGOUT 0x29 /* port logout */
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#define CT_PORTCHANGED 0x2A /* port changed */
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#define CT_IDE 0x33 /* Initiator Detected Error */
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#define CT_NOACK 0x35 /* Outstanding Immed. Notify. entry */
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/*
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* When the firmware returns a CTIO entry, it may overwrite the last
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* part of the structure with sense data. This starts at offset 0x2E
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* into the entry, which is in the middle of ct_dataseg[1]. Rather
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* than define a new struct for this, I'm just using the sense data
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* offset.
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*/
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#define CTIO_SENSE_OFFSET 0x2E
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/*
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* Entry length in u_longs. All entries are the same size so
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* any one will do as the numerator.
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*/
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#define UINT32_ENTRY_SIZE (sizeof(at_entry_t)/sizeof(u_int32_t))
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/*
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* QLA2100 CTIO (type 2) entry
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*/
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#define MAXRESPLEN 26
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typedef struct {
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isphdr_t ct_header;
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u_int16_t ct_reserved;
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u_int16_t ct_fwhandle; /* just to match CTIO */
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u_int8_t ct_lun; /* lun */
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u_int8_t ct_iid; /* initiator id */
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u_int16_t ct_rxid; /* response ID */
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u_int16_t ct_flags;
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u_int16_t ct_status; /* isp status */
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u_int16_t ct_timeout;
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u_int16_t ct_seg_count;
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u_int32_t ct_reloff; /* relative offset */
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int32_t ct_resid; /* residual length */
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union {
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/*
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* The three different modes that the target driver
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* can set the CTIO{2,3,4} up as.
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*
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* The first is for sending FCP_DATA_IUs as well as
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* (optionally) sending a terminal SCSI status FCP_RSP_IU.
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*
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* The second is for sending SCSI sense data in an FCP_RSP_IU.
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* Note that no FCP_DATA_IUs will be sent.
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*
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* The third is for sending FCP_RSP_IUs as built specifically
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* in system memory as located by the isp_dataseg.
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*/
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struct {
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u_int32_t _reserved;
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u_int16_t _reserved2;
|
|
u_int16_t ct_scsi_status;
|
|
u_int32_t ct_xfrlen;
|
|
union {
|
|
ispds_t ct_a[ISP_RQDSEG_T2]; /* CTIO2 */
|
|
ispds64_t ct_b[ISP_RQDSEG_T3]; /* CTIO3 */
|
|
ispdslist_t ct_c; /* CTIO4 */
|
|
} _u;
|
|
#define ct_dataseg _u.ct_a
|
|
#define ct_dataseg64 _u.ct_b
|
|
#define ct_dslist _u.ct_c
|
|
} m0;
|
|
struct {
|
|
u_int16_t _reserved;
|
|
u_int16_t _reserved2;
|
|
u_int16_t ct_senselen;
|
|
u_int16_t ct_scsi_status;
|
|
u_int16_t ct_resplen;
|
|
u_int8_t ct_resp[MAXRESPLEN];
|
|
} m1;
|
|
struct {
|
|
u_int32_t _reserved;
|
|
u_int16_t _reserved2;
|
|
u_int16_t _reserved3;
|
|
u_int32_t ct_datalen;
|
|
ispds_t ct_fcp_rsp_iudata;
|
|
} m2;
|
|
/*
|
|
* CTIO2 returned from F/W...
|
|
*/
|
|
struct {
|
|
u_int32_t _reserved[4];
|
|
u_int16_t ct_scsi_status;
|
|
u_int8_t ct_sense[QLTM_SENSELEN];
|
|
} fw;
|
|
} rsp;
|
|
} ct2_entry_t;
|
|
|
|
/*
|
|
* ct_flags values for CTIO2
|
|
*/
|
|
#define CT2_FLAG_MMASK 0x0003
|
|
#define CT2_FLAG_MODE0 0x0000
|
|
#define CT2_FLAG_MODE1 0x0001
|
|
#define CT2_FLAG_MODE2 0x0002
|
|
#define CT2_DATA_IN CT_DATA_IN
|
|
#define CT2_DATA_OUT CT_DATA_OUT
|
|
#define CT2_NO_DATA CT_NO_DATA
|
|
#define CT2_DATAMASK CT_DATAMASK
|
|
#define CT2_CCINCR 0x0100
|
|
#define CT2_FASTPOST 0x0200
|
|
#define CT2_SENDSTATUS 0x8000
|
|
|
|
/*
|
|
* ct_status values are (mostly) the same as that for ct_entry.
|
|
*/
|
|
|
|
/*
|
|
* ct_scsi_status values- the low 8 bits are the normal SCSI status
|
|
* we know and love. The upper 8 bits are validity markers for FCP_RSP_IU
|
|
* fields.
|
|
*/
|
|
#define CT2_RSPLEN_VALID 0x0100
|
|
#define CT2_SNSLEN_VALID 0x0200
|
|
#define CT2_DATA_OVER 0x0400
|
|
#define CT2_DATA_UNDER 0x0800
|
|
|
|
/*
|
|
* Debug macros
|
|
*/
|
|
|
|
#define ISP_TDQE(isp, msg, idx, arg) \
|
|
if (isp->isp_dblev & ISP_LOGTDEBUG2) isp_print_qentry(isp, msg, idx, arg)
|
|
|
|
#ifdef ISP_TARGET_FUNCTIONS
|
|
/*
|
|
* The functions below are for the publicly available
|
|
* target mode functions that are internal to the Qlogic driver.
|
|
*/
|
|
|
|
/*
|
|
* This function handles new response queue entry appropriate for target mode.
|
|
*/
|
|
int isp_target_notify(struct ispsoftc *, void *, u_int16_t *);
|
|
|
|
/*
|
|
* Enable/Disable/Modify a logical unit.
|
|
* (softc, cmd, bus, tgt, lun, cmd_cnt, inotify_cnt, opaque)
|
|
*/
|
|
#define DFLT_CMND_CNT 0xfe /* unmonitored */
|
|
#define DFLT_INOT_CNT 16
|
|
int isp_lun_cmd(struct ispsoftc *, int, int, int, int, int, int, u_int32_t);
|
|
|
|
/*
|
|
* General request queue 'put' routine for target mode entries.
|
|
*/
|
|
int isp_target_put_entry(struct ispsoftc *isp, void *);
|
|
|
|
/*
|
|
* General routine to put back an ATIO entry-
|
|
* used for replenishing f/w resource counts.
|
|
* The argument is a pointer to a source ATIO
|
|
* or ATIO2.
|
|
*/
|
|
int isp_target_put_atio(struct ispsoftc *, void *);
|
|
|
|
/*
|
|
* General routine to send a final CTIO for a command- used mostly for
|
|
* local responses.
|
|
*/
|
|
int isp_endcmd(struct ispsoftc *, void *, u_int32_t, u_int16_t);
|
|
#define ECMD_SVALID 0x100
|
|
|
|
/*
|
|
* Handle an asynchronous event
|
|
*
|
|
* Return nonzero if the interrupt that generated this event has been dismissed.
|
|
*/
|
|
|
|
int isp_target_async(struct ispsoftc *, int, int);
|
|
#endif
|
|
#endif /* _ISP_TARGET_H */
|