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freebsd-skq/sys/dev/isp/isp_target.h
mjacob 52ffcfe4b5 Some ridiculous target mode botches- like having the wrong definitions 
for messages. Some spelling fixes. Some target mode structure cleanups
to reflect reality.
2003-09-13 01:58:26 +00:00

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/* $FreeBSD$ */
/*
* Qlogic Target Mode Structure and Flag Definitions
*
* Copyright (c) 1997, 1998
* Patrick Stirling
* pms@psconsult.com
* All rights reserved.
*
* Additional Copyright (c) 1999, 2000, 2001
* Matthew Jacob
* mjacob@feral.com
* All rights reserved.
*
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice immediately at the beginning of the file, without modification,
* this list of conditions, and the following disclaimer.
* 2. The name of the author may not be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE FOR
* ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
*/
#ifndef _ISP_TARGET_H
#define _ISP_TARGET_H
#define QLTM_SENSELEN 18 /* non-FC cards only */
#define QLTM_SVALID 0x80
/*
* Structure for Enable Lun and Modify Lun queue entries
*/
typedef struct {
isphdr_t le_header;
u_int32_t le_reserved;
u_int8_t le_lun;
u_int8_t le_rsvd;
u_int8_t le_ops; /* Modify LUN only */
u_int8_t le_tgt; /* Not for FC */
u_int32_t le_flags; /* Not for FC */
u_int8_t le_status;
u_int8_t le_reserved2;
u_int8_t le_cmd_count;
u_int8_t le_in_count;
u_int8_t le_cdb6len; /* Not for FC */
u_int8_t le_cdb7len; /* Not for FC */
u_int16_t le_timeout;
u_int16_t le_reserved3[20];
} lun_entry_t;
/*
* le_flags values
*/
#define LUN_TQAE 0x00000002 /* bit1 Tagged Queue Action Enable */
#define LUN_DSSM 0x01000000 /* bit24 Disable Sending SDP Message */
#define LUN_DISAD 0x02000000 /* bit25 Disable autodisconnect */
#define LUN_DM 0x40000000 /* bit30 Disconnects Mandatory */
/*
* le_ops values
*/
#define LUN_CCINCR 0x01 /* increment command count */
#define LUN_CCDECR 0x02 /* decrement command count */
#define LUN_ININCR 0x40 /* increment immed. notify count */
#define LUN_INDECR 0x80 /* decrement immed. notify count */
/*
* le_status values
*/
#define LUN_OK 0x01 /* we be rockin' */
#define LUN_ERR 0x04 /* request completed with error */
#define LUN_INVAL 0x06 /* invalid request */
#define LUN_NOCAP 0x16 /* can't provide requested capability */
#define LUN_ENABLED 0x3E /* LUN already enabled */
/*
* Immediate Notify Entry structure
*/
#define IN_MSGLEN 8 /* 8 bytes */
#define IN_RSVDLEN 8 /* 8 words */
typedef struct {
isphdr_t in_header;
u_int32_t in_reserved;
u_int8_t in_lun; /* lun */
u_int8_t in_iid; /* initiator */
u_int8_t in_reserved2;
u_int8_t in_tgt; /* target */
u_int32_t in_flags;
u_int8_t in_status;
u_int8_t in_rsvd2;
u_int8_t in_tag_val; /* tag value */
u_int8_t in_tag_type; /* tag type */
u_int16_t in_seqid; /* sequence id */
u_int8_t in_msg[IN_MSGLEN]; /* SCSI message bytes */
u_int16_t in_reserved3[IN_RSVDLEN];
u_int8_t in_sense[QLTM_SENSELEN];/* suggested sense data */
} in_entry_t;
typedef struct {
isphdr_t in_header;
u_int32_t in_reserved;
u_int8_t in_lun; /* lun */
u_int8_t in_iid; /* initiator */
u_int16_t in_scclun;
u_int32_t in_reserved2;
u_int16_t in_status;
u_int16_t in_task_flags;
u_int16_t in_seqid; /* sequence id */
} in_fcentry_t;
/*
* Values for the in_status field
*/
#define IN_REJECT 0x0D /* Message Reject message received */
#define IN_RESET 0x0E /* Bus Reset occurred */
#define IN_NO_RCAP 0x16 /* requested capability not available */
#define IN_IDE_RECEIVED 0x33 /* Initiator Detected Error msg received */
#define IN_RSRC_UNAVAIL 0x34 /* resource unavailable */
#define IN_MSG_RECEIVED 0x36 /* SCSI message received */
#define IN_ABORT_TASK 0x20 /* task named in RX_ID is being aborted (FC) */
#define IN_PORT_LOGOUT 0x29 /* port has logged out (FC) */
#define IN_PORT_CHANGED 0x2A /* port changed */
#define IN_GLOBAL_LOGO 0x2E /* all ports logged out */
#define IN_NO_NEXUS 0x3B /* Nexus not established */
/*
* Values for the in_task_flags field- should only get one at a time!
*/
#define TASK_FLAGS_CLEAR_ACA (1<<14)
#define TASK_FLAGS_TARGET_RESET (1<<13)
#define TASK_FLAGS_LUN_RESET (1<<12)
#define TASK_FLAGS_CLEAR_TASK_SET (1<<10)
#define TASK_FLAGS_ABORT_TASK_SET (1<<9)
#ifndef MSG_ABORT
#define MSG_ABORT 0x06
#endif
#ifndef MSG_BUS_DEV_RESET
#define MSG_BUS_DEV_RESET 0x0c
#endif
#ifndef MSG_ABORT_TAG
#define MSG_ABORT_TAG 0x0d
#endif
#ifndef MSG_CLEAR_QUEUE
#define MSG_CLEAR_QUEUE 0x0e
#endif
#ifndef MSG_REL_RECOVERY
#define MSG_REL_RECOVERY 0x10
#endif
#ifndef MSG_TERM_IO_PROC
#define MSG_TERM_IO_PROC 0x11
#endif
#ifndef MSG_LUN_RESET
#define MSG_LUN_RESET 0x17
#endif
/*
* Notify Acknowledge Entry structure
*/
#define NA_RSVDLEN 22
typedef struct {
isphdr_t na_header;
u_int32_t na_reserved;
u_int8_t na_lun; /* lun */
u_int8_t na_iid; /* initiator */
u_int8_t na_reserved2;
u_int8_t na_tgt; /* target */
u_int32_t na_flags;
u_int8_t na_status;
u_int8_t na_event;
u_int16_t na_seqid; /* sequence id */
u_int16_t na_reserved3[NA_RSVDLEN];
} na_entry_t;
/*
* Value for the na_event field
*/
#define NA_RST_CLRD 0x80 /* Clear an async event notification */
#define NA_OK 0x01 /* Notify Acknowledge Succeeded */
#define NA_INVALID 0x06 /* Invalid Notify Acknowledge */
#define NA2_RSVDLEN 21
typedef struct {
isphdr_t na_header;
u_int32_t na_reserved;
u_int8_t na_lun; /* lun */
u_int8_t na_iid; /* initiator */
u_int16_t na_scclun;
u_int16_t na_flags;
u_int16_t na_reserved2;
u_int16_t na_status;
u_int16_t na_task_flags;
u_int16_t na_seqid; /* sequence id */
u_int16_t na_reserved3[NA2_RSVDLEN];
} na_fcentry_t;
#define NAFC_RCOUNT 0x80 /* increment resource count */
#define NAFC_RST_CLRD 0x20 /* Clear LIP Reset */
/*
* Accept Target I/O Entry structure
*/
#define ATIO_CDBLEN 26
typedef struct {
isphdr_t at_header;
u_int16_t at_reserved;
u_int16_t at_handle;
u_int8_t at_lun; /* lun */
u_int8_t at_iid; /* initiator */
u_int8_t at_cdblen; /* cdb length */
u_int8_t at_tgt; /* target */
u_int32_t at_flags;
u_int8_t at_status; /* firmware status */
u_int8_t at_scsi_status; /* scsi status */
u_int8_t at_tag_val; /* tag value */
u_int8_t at_tag_type; /* tag type */
u_int8_t at_cdb[ATIO_CDBLEN]; /* received CDB */
u_int8_t at_sense[QLTM_SENSELEN];/* suggested sense data */
} at_entry_t;
/*
* at_flags values
*/
#define AT_NODISC 0x00008000 /* disconnect disabled */
#define AT_TQAE 0x00000002 /* Tagged Queue Action enabled */
/*
* at_status values
*/
#define AT_PATH_INVALID 0x07 /* ATIO sent to firmware for disabled lun */
#define AT_RESET 0x0E /* SCSI Bus Reset Occurred */
#define AT_PHASE_ERROR 0x14 /* Bus phase sequence error */
#define AT_NOCAP 0x16 /* Requested capability not available */
#define AT_BDR_MSG 0x17 /* Bus Device Reset msg received */
#define AT_CDB 0x3D /* CDB received */
/*
* Macros to create and fetch and test concatenated handle and tag value macros
*/
#define AT_MAKE_TAGID(tid, aep) \
tid = ((aep)->at_handle << 16); \
if ((aep)->at_flags & AT_TQAE) \
(tid) |= ((aep)->at_tag_val + 1)
#define CT_MAKE_TAGID(tid, ct) \
tid = ((ct)->ct_fwhandle << 16); \
if ((ct)->ct_flags & CT_TQAE) \
(tid) |= ((ct)->ct_tag_val + 1)
#define AT_HAS_TAG(val) ((val) & 0xffff)
#define AT_GET_TAG(val) AT_HAS_TAG(val) - 1
#define AT_GET_HANDLE(val) ((val) >> 16)
/*
* Accept Target I/O Entry structure, Type 2
*/
#define ATIO2_CDBLEN 16
typedef struct {
isphdr_t at_header;
u_int32_t at_reserved;
u_int8_t at_lun; /* lun or reserved */
u_int8_t at_iid; /* initiator */
u_int16_t at_rxid; /* response ID */
u_int16_t at_flags;
u_int16_t at_status; /* firmware status */
u_int8_t at_crn; /* command reference number */
u_int8_t at_taskcodes;
u_int8_t at_taskflags;
u_int8_t at_execodes;
u_int8_t at_cdb[ATIO2_CDBLEN]; /* received CDB */
u_int32_t at_datalen; /* allocated data len */
u_int16_t at_scclun; /* SCC Lun or reserved */
u_int16_t at_wwpn[4]; /* WWPN of initiator */
u_int16_t at_reserved2[6];
u_int16_t at_oxid;
} at2_entry_t;
#define ATIO2_WWPN_OFFSET 0x2A
#define ATIO2_OXID_OFFSET 0x3E
#define ATIO2_TC_ATTR_MASK 0x7
#define ATIO2_TC_ATTR_SIMPLEQ 0
#define ATIO2_TC_ATTR_HEADOFQ 1
#define ATIO2_TC_ATTR_ORDERED 2
#define ATIO2_TC_ATTR_ACAQ 4
#define ATIO2_TC_ATTR_UNTAGGED 5
#define ATIO2_EX_WRITE 0x1
#define ATIO2_EX_READ 0x2
/*
* Continue Target I/O Entry structure
* Request from driver. The response from the
* ISP firmware is the same except that the last 18
* bytes are overwritten by suggested sense data if
* the 'autosense valid' bit is set in the status byte.
*/
typedef struct {
isphdr_t ct_header;
u_int16_t ct_reserved;
#define ct_syshandle ct_reserved /* we use this */
u_int16_t ct_fwhandle; /* required by f/w */
u_int8_t ct_lun; /* lun */
u_int8_t ct_iid; /* initiator id */
u_int8_t ct_reserved2;
u_int8_t ct_tgt; /* our target id */
u_int32_t ct_flags;
u_int8_t ct_status; /* isp status */
u_int8_t ct_scsi_status; /* scsi status */
u_int8_t ct_tag_val; /* tag value */
u_int8_t ct_tag_type; /* tag type */
u_int32_t ct_xfrlen; /* transfer length */
u_int32_t ct_resid; /* residual length */
u_int16_t ct_timeout;
u_int16_t ct_seg_count;
/*
* This is so we can share tag name space with
* CTIO{2,3,4} with the minimum of pain.
*/
union {
ispds_t ct_a[ISP_RQDSEG];
} _u;
#define ct_dataseg _u.ct_a
} ct_entry_t;
/*
* For some of the dual port SCSI adapters, port (bus #) is reported
* in the MSbit of ct_iid. Bit fields are a bit too awkward here.
*
* Note that this does not apply to FC adapters at all which can and
* do report IIDs between 129 && 255 (these represent devices that have
* logged in across a SCSI fabric).
*/
#define GET_IID_VAL(x) (x & 0x3f)
#define GET_BUS_VAL(x) ((x >> 7) & 0x1)
#define SET_IID_VAL(y, x) y = ((y & ~0x3f) | (x & 0x3f))
#define SET_BUS_VAL(y, x) y = ((y & 0x3f) | ((x & 0x1) << 7))
/*
* ct_flags values
*/
#define CT_TQAE 0x00000002 /* bit 1, Tagged Queue Action enable */
#define CT_DATA_IN 0x00000040 /* bits 6&7, Data direction */
#define CT_DATA_OUT 0x00000080 /* bits 6&7, Data direction */
#define CT_NO_DATA 0x000000C0 /* bits 6&7, Data direction */
#define CT_CCINCR 0x00000100 /* bit 8, autoincrement atio count */
#define CT_DATAMASK 0x000000C0 /* bits 6&7, Data direction */
#define CT_INISYNCWIDE 0x00004000 /* bit 14, Do Sync/Wide Negotiation */
#define CT_NODISC 0x00008000 /* bit 15, Disconnects disabled */
#define CT_DSDP 0x01000000 /* bit 24, Disable Save Data Pointers */
#define CT_SENDRDP 0x04000000 /* bit 26, Send Restore Pointers msg */
#define CT_SENDSTATUS 0x80000000 /* bit 31, Send SCSI status byte */
/*
* ct_status values
* - set by the firmware when it returns the CTIO
*/
#define CT_OK 0x01 /* completed without error */
#define CT_ABORTED 0x02 /* aborted by host */
#define CT_ERR 0x04 /* see sense data for error */
#define CT_INVAL 0x06 /* request for disabled lun */
#define CT_NOPATH 0x07 /* invalid ITL nexus */
#define CT_INVRXID 0x08 /* (FC only) Invalid RX_ID */
#define CT_DATA_OVER 0x09 /* (FC only) Data Overrun */
#define CT_RSELTMO 0x0A /* reselection timeout after 2 tries */
#define CT_TIMEOUT 0x0B /* timed out */
#define CT_RESET 0x0E /* SCSI Bus Reset occurred */
#define CT_PARITY 0x0F /* Uncorrectable Parity Error */
#define CT_BUS_ERROR 0x10 /* (FC Only) DMA PCI Error */
#define CT_PANIC 0x13 /* Unrecoverable Error */
#define CT_PHASE_ERROR 0x14 /* Bus phase sequence error */
#define CT_BDR_MSG 0x17 /* Bus Device Reset msg received */
#define CT_DATA_UNDER 0x15 /* (FC only) Data Underrun */
#define CT_TERMINATED 0x19 /* due to Terminate Transfer mbox cmd */
#define CT_PORTNOTAVAIL 0x28 /* port not available */
#define CT_LOGOUT 0x29 /* port logout */
#define CT_PORTCHANGED 0x2A /* port changed */
#define CT_IDE 0x33 /* Initiator Detected Error */
#define CT_NOACK 0x35 /* Outstanding Immed. Notify. entry */
/*
* When the firmware returns a CTIO entry, it may overwrite the last
* part of the structure with sense data. This starts at offset 0x2E
* into the entry, which is in the middle of ct_dataseg[1]. Rather
* than define a new struct for this, I'm just using the sense data
* offset.
*/
#define CTIO_SENSE_OFFSET 0x2E
/*
* Entry length in u_longs. All entries are the same size so
* any one will do as the numerator.
*/
#define UINT32_ENTRY_SIZE (sizeof(at_entry_t)/sizeof(u_int32_t))
/*
* QLA2100 CTIO (type 2) entry
*/
#define MAXRESPLEN 26
typedef struct {
isphdr_t ct_header;
u_int16_t ct_reserved;
u_int16_t ct_fwhandle; /* just to match CTIO */
u_int8_t ct_lun; /* lun */
u_int8_t ct_iid; /* initiator id */
u_int16_t ct_rxid; /* response ID */
u_int16_t ct_flags;
u_int16_t ct_status; /* isp status */
u_int16_t ct_timeout;
u_int16_t ct_seg_count;
u_int32_t ct_reloff; /* relative offset */
int32_t ct_resid; /* residual length */
union {
/*
* The three different modes that the target driver
* can set the CTIO{2,3,4} up as.
*
* The first is for sending FCP_DATA_IUs as well as
* (optionally) sending a terminal SCSI status FCP_RSP_IU.
*
* The second is for sending SCSI sense data in an FCP_RSP_IU.
* Note that no FCP_DATA_IUs will be sent.
*
* The third is for sending FCP_RSP_IUs as built specifically
* in system memory as located by the isp_dataseg.
*/
struct {
u_int32_t _reserved;
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;
} 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_TERMINATE 0x4000
#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 */
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