831 lines
28 KiB
C
831 lines
28 KiB
C
/* $FreeBSD$ */
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/*
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* Soft Definitions for for Qlogic ISP SCSI adapters.
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*
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* Copyright (c) 1997, 1998, 1999, 2000 by Matthew Jacob
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* All rights reserved.
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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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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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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 _ISPVAR_H
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#define _ISPVAR_H
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#if defined(__NetBSD__) || defined(__OpenBSD__)
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#include <dev/ic/ispmbox.h>
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#ifdef ISP_TARGET_MODE
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#include <dev/ic/isp_target.h>
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#include <dev/ic/isp_tpublic.h>
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#endif
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#endif
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#ifdef __FreeBSD__
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#include <dev/isp/ispmbox.h>
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#ifdef ISP_TARGET_MODE
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#include <dev/isp/isp_target.h>
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#include <dev/isp/isp_tpublic.h>
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#endif
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#endif
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#ifdef __linux__
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#include "ispmbox.h"
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#ifdef ISP_TARGET_MODE
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#include "isp_target.h"
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#include "isp_tpublic.h"
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#endif
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#endif
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#define ISP_CORE_VERSION_MAJOR 2
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#define ISP_CORE_VERSION_MINOR 4
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/*
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* Vector for bus specific code to provide specific services.
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*/
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struct ispsoftc;
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struct ispmdvec {
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int (*dv_rd_isr)
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(struct ispsoftc *, u_int16_t *, u_int16_t *, u_int16_t *);
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u_int16_t (*dv_rd_reg) (struct ispsoftc *, int);
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void (*dv_wr_reg) (struct ispsoftc *, int, u_int16_t);
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int (*dv_mbxdma) (struct ispsoftc *);
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int (*dv_dmaset) (struct ispsoftc *,
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XS_T *, ispreq_t *, u_int16_t *, u_int16_t);
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void (*dv_dmaclr)
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(struct ispsoftc *, XS_T *, u_int16_t);
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void (*dv_reset0) (struct ispsoftc *);
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void (*dv_reset1) (struct ispsoftc *);
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void (*dv_dregs) (struct ispsoftc *, const char *);
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const u_int16_t *dv_ispfw; /* ptr to f/w */
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u_int16_t dv_conf1;
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u_int16_t dv_clock; /* clock frequency */
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};
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/*
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* Overall parameters
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*/
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#define MAX_TARGETS 16
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#define MAX_FC_TARG 256
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#define ISP_MAX_TARGETS(isp) (IS_FC(isp)? MAX_FC_TARG : MAX_TARGETS)
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#define ISP_MAX_LUNS(isp) (isp)->isp_maxluns
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/*
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* 'Types'
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*/
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#ifndef ISP_DMA_ADDR_T
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#define ISP_DMA_ADDR_T u_int32_t
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#endif
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/*
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* Macros to access ISP registers through bus specific layers-
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* mostly wrappers to vector through the mdvec structure.
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*/
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#define ISP_READ_ISR(isp, isrp, semap, mbox0p) \
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(*(isp)->isp_mdvec->dv_rd_isr)(isp, isrp, semap, mbox0p)
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#define ISP_READ(isp, reg) \
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(*(isp)->isp_mdvec->dv_rd_reg)((isp), (reg))
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#define ISP_WRITE(isp, reg, val) \
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(*(isp)->isp_mdvec->dv_wr_reg)((isp), (reg), (val))
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#define ISP_MBOXDMASETUP(isp) \
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(*(isp)->isp_mdvec->dv_mbxdma)((isp))
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#define ISP_DMASETUP(isp, xs, req, iptrp, optr) \
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(*(isp)->isp_mdvec->dv_dmaset)((isp), (xs), (req), (iptrp), (optr))
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#define ISP_DMAFREE(isp, xs, hndl) \
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if ((isp)->isp_mdvec->dv_dmaclr) \
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(*(isp)->isp_mdvec->dv_dmaclr)((isp), (xs), (hndl))
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#define ISP_RESET0(isp) \
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if ((isp)->isp_mdvec->dv_reset0) (*(isp)->isp_mdvec->dv_reset0)((isp))
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#define ISP_RESET1(isp) \
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if ((isp)->isp_mdvec->dv_reset1) (*(isp)->isp_mdvec->dv_reset1)((isp))
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#define ISP_DUMPREGS(isp, m) \
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if ((isp)->isp_mdvec->dv_dregs) (*(isp)->isp_mdvec->dv_dregs)((isp),(m))
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#define ISP_SETBITS(isp, reg, val) \
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(*(isp)->isp_mdvec->dv_wr_reg)((isp), (reg), ISP_READ((isp), (reg)) | (val))
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#define ISP_CLRBITS(isp, reg, val) \
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(*(isp)->isp_mdvec->dv_wr_reg)((isp), (reg), ISP_READ((isp), (reg)) & ~(val))
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/*
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* The MEMORYBARRIER macro is defined per platform (to provide synchronization
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* on Request and Response Queues, Scratch DMA areas, and Registers)
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*
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* Defined Memory Barrier Synchronization Types
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*/
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#define SYNC_REQUEST 0 /* request queue synchronization */
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#define SYNC_RESULT 1 /* result queue synchronization */
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#define SYNC_SFORDEV 2 /* scratch, sync for ISP */
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#define SYNC_SFORCPU 3 /* scratch, sync for CPU */
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#define SYNC_REG 4 /* for registers */
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/*
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* Request/Response Queue defines and macros.
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* The maximum is defined per platform (and can be based on board type).
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*/
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/* This is the size of a queue entry (request and response) */
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#define QENTRY_LEN 64
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/* Both request and result queue length must be a power of two */
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#define RQUEST_QUEUE_LEN(x) MAXISPREQUEST(x)
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#define RESULT_QUEUE_LEN(x) \
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(((MAXISPREQUEST(x) >> 2) < 64)? 64 : MAXISPREQUEST(x) >> 2)
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#define ISP_QUEUE_ENTRY(q, idx) ((q) + ((idx) * QENTRY_LEN))
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#define ISP_QUEUE_SIZE(n) ((n) * QENTRY_LEN)
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#define ISP_NXT_QENTRY(idx, qlen) (((idx) + 1) & ((qlen)-1))
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#define ISP_QFREE(in, out, qlen) \
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((in == out)? (qlen - 1) : ((in > out)? \
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((qlen - 1) - (in - out)) : (out - in - 1)))
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#define ISP_QAVAIL(isp) \
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ISP_QFREE(isp->isp_reqidx, isp->isp_reqodx, RQUEST_QUEUE_LEN(isp))
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#define ISP_ADD_REQUEST(isp, iptr) \
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MEMORYBARRIER(isp, SYNC_REQUEST, iptr, QENTRY_LEN); \
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WRITE_REQUEST_QUEUE_IN_POINTER(isp, iptr); \
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isp->isp_reqidx = iptr
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/*
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* SCSI Specific Host Adapter Parameters- per bus, per target
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*/
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typedef struct {
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u_int isp_gotdparms : 1,
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isp_req_ack_active_neg : 1,
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isp_data_line_active_neg: 1,
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isp_cmd_dma_burst_enable: 1,
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isp_data_dma_burst_enabl: 1,
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isp_fifo_threshold : 3,
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isp_ultramode : 1,
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isp_diffmode : 1,
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isp_lvdmode : 1,
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isp_fast_mttr : 1, /* fast sram */
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isp_initiator_id : 4,
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isp_async_data_setup : 4;
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u_int16_t isp_selection_timeout;
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u_int16_t isp_max_queue_depth;
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u_int8_t isp_tag_aging;
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u_int8_t isp_bus_reset_delay;
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u_int8_t isp_retry_count;
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u_int8_t isp_retry_delay;
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struct {
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u_int32_t
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exc_throttle : 8,
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: 1,
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dev_enable : 1, /* ignored */
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dev_update : 1,
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dev_refresh : 1,
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actv_offset : 4,
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goal_offset : 4,
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nvrm_offset : 4;
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u_int8_t actv_period; /* current sync period */
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u_int8_t goal_period; /* goal sync period */
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u_int8_t nvrm_period; /* nvram sync period */
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u_int16_t actv_flags; /* current device flags */
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u_int16_t goal_flags; /* goal device flags */
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u_int16_t nvrm_flags; /* nvram device flags */
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} isp_devparam[MAX_TARGETS];
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} sdparam;
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/*
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* Device Flags
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*/
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#define DPARM_DISC 0x8000
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#define DPARM_PARITY 0x4000
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#define DPARM_WIDE 0x2000
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#define DPARM_SYNC 0x1000
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#define DPARM_TQING 0x0800
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#define DPARM_ARQ 0x0400
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#define DPARM_QFRZ 0x0200
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#define DPARM_RENEG 0x0100
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#define DPARM_NARROW 0x0080
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#define DPARM_ASYNC 0x0040
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#define DPARM_PPR 0x0020
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#define DPARM_DEFAULT (0xFF00 & ~DPARM_QFRZ)
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#define DPARM_SAFE_DFLT (DPARM_DEFAULT & ~(DPARM_WIDE|DPARM_SYNC|DPARM_TQING))
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/* technically, not really correct, as they need to be rated based upon clock */
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#define ISP_80M_SYNCPARMS 0x0c09
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#define ISP_40M_SYNCPARMS 0x0c0a
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#define ISP_20M_SYNCPARMS 0x0c0c
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#define ISP_20M_SYNCPARMS_1040 0x080c
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#define ISP_10M_SYNCPARMS 0x0c19
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#define ISP_08M_SYNCPARMS 0x0c25
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#define ISP_05M_SYNCPARMS 0x0c32
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#define ISP_04M_SYNCPARMS 0x0c41
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/*
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* Fibre Channel Specifics
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*/
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#define FL_PORT_ID 0x7e /* FL_Port Special ID */
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#define FC_PORT_ID 0x7f /* Fabric Controller Special ID */
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#define FC_SNS_ID 0x80 /* SNS Server Special ID */
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typedef struct {
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u_int32_t isp_fwoptions : 16,
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: 2,
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isp_iid_set : 1,
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loop_seen_once : 1,
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isp_loopstate : 4, /* Current Loop State */
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isp_fwstate : 3, /* ISP F/W state */
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isp_gotdparms : 1,
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isp_topo : 3,
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isp_onfabric : 1;
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u_int8_t isp_iid; /* 'initiator' id */
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u_int8_t isp_loopid; /* hard loop id */
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u_int8_t isp_alpa; /* ALPA */
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u_int32_t isp_portid;
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volatile u_int16_t isp_lipseq; /* LIP sequence # */
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u_int16_t isp_fwattr; /* firmware attributes */
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u_int8_t isp_execthrottle;
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u_int8_t isp_retry_delay;
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u_int8_t isp_retry_count;
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u_int8_t isp_reserved;
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u_int16_t isp_maxalloc;
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u_int16_t isp_maxfrmlen;
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u_int64_t isp_nodewwn;
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u_int64_t isp_portwwn;
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/*
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* Port Data Base. This is indexed by 'target', which is invariate.
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* However, elements within can move around due to loop changes,
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* so the actual loop ID passed to the F/W is in this structure.
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* The first time the loop is seen up, loopid will match the index
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* (except for fabric nodes which are above mapped above FC_SNS_ID
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* and are completely virtual), but subsequent LIPs can cause things
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* to move around.
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*/
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struct lportdb {
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u_int
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loopid : 8,
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: 1,
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force_logout : 1,
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was_fabric_dev : 1,
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fabric_dev : 1,
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loggedin : 1,
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roles : 2,
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valid : 1;
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u_int32_t portid;
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u_int64_t node_wwn;
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u_int64_t port_wwn;
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} portdb[MAX_FC_TARG], tport[FC_PORT_ID];
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/*
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* Scratch DMA mapped in area to fetch Port Database stuff, etc.
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*/
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caddr_t isp_scratch;
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ISP_DMA_ADDR_T isp_scdma;
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} fcparam;
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#define FW_CONFIG_WAIT 0
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#define FW_WAIT_AL_PA 1
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#define FW_WAIT_LOGIN 2
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#define FW_READY 3
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#define FW_LOSS_OF_SYNC 4
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#define FW_ERROR 5
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#define FW_REINIT 6
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#define FW_NON_PART 7
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#define LOOP_NIL 0
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#define LOOP_LIP_RCVD 1
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#define LOOP_PDB_RCVD 2
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#define LOOP_SCANNING_FABRIC 3
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#define LOOP_FSCAN_DONE 4
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#define LOOP_SCANNING_LOOP 5
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#define LOOP_LSCAN_DONE 6
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#define LOOP_SYNCING_PDB 7
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#define LOOP_READY 8
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#define TOPO_NL_PORT 0
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#define TOPO_FL_PORT 1
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#define TOPO_N_PORT 2
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#define TOPO_F_PORT 3
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#define TOPO_PTP_STUB 4
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/*
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* Soft Structure per host adapter
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*/
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typedef struct ispsoftc {
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/*
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* Platform (OS) specific data
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*/
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struct isposinfo isp_osinfo;
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/*
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* Pointer to bus specific functions and data
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*/
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struct ispmdvec * isp_mdvec;
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/*
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* (Mostly) nonvolatile state. Board specific parameters
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* may contain some volatile state (e.g., current loop state).
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*/
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void * isp_param; /* type specific */
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u_int16_t isp_fwrev[3]; /* Loaded F/W revision */
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u_int16_t isp_romfw_rev[3]; /* PROM F/W revision */
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u_int16_t isp_maxcmds; /* max possible I/O cmds */
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u_int8_t isp_type; /* HBA Chip Type */
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u_int8_t isp_revision; /* HBA Chip H/W Revision */
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u_int32_t isp_maxluns; /* maximum luns supported */
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u_int32_t isp_clock : 8, /* input clock */
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: 6,
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isp_role : 2,
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: 1,
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isp_touched : 1, /* board ever seen? */
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isp_bustype : 1, /* SBus or PCI */
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isp_loaded_fw : 1, /* loaded firmware */
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isp_dblev : 12; /* debug log mask */
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u_int32_t isp_confopts; /* config options */
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u_int16_t isp_rqstinrp; /* register for REQINP */
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u_int16_t isp_rqstoutrp; /* register for REQOUTP */
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u_int16_t isp_respinrp; /* register for RESINP */
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u_int16_t isp_respoutrp; /* register for RESOUTP */
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/*
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* Instrumentation
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*/
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u_int64_t isp_intcnt; /* total int count */
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u_int64_t isp_intbogus; /* spurious int count */
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/*
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* Volatile state
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*/
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volatile u_int32_t
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isp_mboxbsy : 8, /* mailbox command active */
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: 1,
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isp_state : 3,
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isp_sendmarker : 2, /* send a marker entry */
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isp_update : 2, /* update parameters */
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isp_nactive : 16; /* how many commands active */
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volatile u_int16_t isp_reqodx; /* index of last ISP pickup */
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volatile u_int16_t isp_reqidx; /* index of next request */
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volatile u_int16_t isp_residx; /* index of next result */
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volatile u_int16_t isp_lasthdls; /* last handle seed */
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volatile u_int16_t isp_mboxtmp[MAX_MAILBOX];
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volatile u_int16_t isp_lastmbxcmd; /* last mbox command sent */
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/*
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* Active commands are stored here, indexed by handle functions.
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*/
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XS_T **isp_xflist;
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/*
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* request/result queue pointers and dma handles for them.
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*/
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caddr_t isp_rquest;
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caddr_t isp_result;
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ISP_DMA_ADDR_T isp_rquest_dma;
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ISP_DMA_ADDR_T isp_result_dma;
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} ispsoftc_t;
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#define SDPARAM(isp) ((sdparam *) (isp)->isp_param)
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#define FCPARAM(isp) ((fcparam *) (isp)->isp_param)
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/*
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* ISP Driver Run States
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*/
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#define ISP_NILSTATE 0
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#define ISP_RESETSTATE 1
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#define ISP_INITSTATE 2
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#define ISP_RUNSTATE 3
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/*
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* ISP Configuration Options
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*/
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#define ISP_CFG_NORELOAD 0x80 /* don't download f/w */
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#define ISP_CFG_NONVRAM 0x40 /* ignore NVRAM */
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#define ISP_CFG_FULL_DUPLEX 0x01 /* Full Duplex (Fibre Channel only) */
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#define ISP_CFG_OWNWWN 0x02 /* override NVRAM wwn */
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#define ISP_CFG_PORT_PREF 0x0C /* Mask for Port Prefs (2200 only) */
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#define ISP_CFG_LPORT 0x00 /* prefer {N/F}L-Port connection */
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#define ISP_CFG_NPORT 0x04 /* prefer {N/F}-Port connection */
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#define ISP_CFG_NPORT_ONLY 0x08 /* insist on {N/F}-Port connection */
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#define ISP_CFG_LPORT_ONLY 0x0C /* insist on {N/F}L-Port connection */
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/*
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* Prior to calling isp_reset for the first time, the outer layer
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* should set isp_role to one of NONE, INITIATOR, TARGET, BOTH.
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*
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* If you set ISP_ROLE_NONE, the cards will be reset, new firmware loaded,
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* NVRAM read, and defaults set, but any further initialization (e.g.
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* INITIALIZE CONTROL BLOCK commands for 2X00 cards) won't be done.
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*
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* If INITIATOR MODE isn't set, attempts to run commands will be stopped
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* at isp_start and completed with the moral equivalent of SELECTION TIMEOUT.
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*
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* If TARGET MODE is set, it doesn't mean that the rest of target mode support
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* needs to be enabled, or will even work. What happens with the 2X00 cards
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* here is that if you have enabled it with TARGET MODE as part of the ICB
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* options, but you haven't given the f/w any ram resources for ATIOs or
|
|
* Immediate Notifies, the f/w just handles what it can and you never see
|
|
* anything. Basically, it sends a single byte of data (the first byte,
|
|
* which you can set as part of the INITIALIZE CONTROL BLOCK command) for
|
|
* INQUIRY, and sends back QUEUE FULL status for any other command.
|
|
*
|
|
*/
|
|
#define ISP_ROLE_NONE 0x0
|
|
#define ISP_ROLE_INITIATOR 0x1
|
|
#define ISP_ROLE_TARGET 0x2
|
|
#define ISP_ROLE_BOTH (ISP_ROLE_TARGET|ISP_ROLE_INITIATOR)
|
|
#define ISP_ROLE_EITHER ISP_ROLE_BOTH
|
|
#ifndef ISP_DEFAULT_ROLES
|
|
#define ISP_DEFAULT_ROLES ISP_ROLE_INITIATOR
|
|
#endif
|
|
|
|
|
|
/*
|
|
* Firmware related defines
|
|
*/
|
|
#define ISP_CODE_ORG 0x1000 /* default f/w code start */
|
|
#define ISP_CODE_ORG_2300 0x0800 /* ..except for 2300s */
|
|
#define ISP_FW_REV(maj, min, mic) ((maj << 24) | (min << 16) | mic)
|
|
#define ISP_FW_MAJOR(code) ((code >> 24) & 0xff)
|
|
#define ISP_FW_MINOR(code) ((code >> 16) & 0xff)
|
|
#define ISP_FW_MICRO(code) ((code >> 8) & 0xff)
|
|
#define ISP_FW_REVX(xp) ((xp[0]<<24) | (xp[1] << 16) | xp[2])
|
|
#define ISP_FW_MAJORX(xp) (xp[0])
|
|
#define ISP_FW_MINORX(xp) (xp[1])
|
|
#define ISP_FW_MICROX(xp) (xp[2])
|
|
|
|
/*
|
|
* Bus (implementation) types
|
|
*/
|
|
#define ISP_BT_PCI 0 /* PCI Implementations */
|
|
#define ISP_BT_SBUS 1 /* SBus Implementations */
|
|
|
|
/*
|
|
* Chip Types
|
|
*/
|
|
#define ISP_HA_SCSI 0xf
|
|
#define ISP_HA_SCSI_UNKNOWN 0x1
|
|
#define ISP_HA_SCSI_1020 0x2
|
|
#define ISP_HA_SCSI_1020A 0x3
|
|
#define ISP_HA_SCSI_1040 0x4
|
|
#define ISP_HA_SCSI_1040A 0x5
|
|
#define ISP_HA_SCSI_1040B 0x6
|
|
#define ISP_HA_SCSI_1040C 0x7
|
|
#define ISP_HA_SCSI_1240 0x8
|
|
#define ISP_HA_SCSI_1080 0x9
|
|
#define ISP_HA_SCSI_1280 0xa
|
|
#define ISP_HA_SCSI_12160 0xb
|
|
#define ISP_HA_FC 0xf0
|
|
#define ISP_HA_FC_2100 0x10
|
|
#define ISP_HA_FC_2200 0x20
|
|
#define ISP_HA_FC_2300 0x30
|
|
|
|
#define IS_SCSI(isp) (isp->isp_type & ISP_HA_SCSI)
|
|
#define IS_1240(isp) (isp->isp_type == ISP_HA_SCSI_1240)
|
|
#define IS_1080(isp) (isp->isp_type == ISP_HA_SCSI_1080)
|
|
#define IS_1280(isp) (isp->isp_type == ISP_HA_SCSI_1280)
|
|
#define IS_12160(isp) (isp->isp_type == ISP_HA_SCSI_12160)
|
|
|
|
#define IS_12X0(isp) (IS_1240(isp) || IS_1280(isp))
|
|
#define IS_DUALBUS(isp) (IS_12X0(isp) || IS_12160(isp))
|
|
#define IS_ULTRA2(isp) (IS_1080(isp) || IS_1280(isp) || IS_12160(isp))
|
|
#define IS_ULTRA3(isp) (IS_12160(isp))
|
|
|
|
#define IS_FC(isp) ((isp)->isp_type & ISP_HA_FC)
|
|
#define IS_2100(isp) ((isp)->isp_type == ISP_HA_FC_2100)
|
|
#define IS_2200(isp) ((isp)->isp_type == ISP_HA_FC_2200)
|
|
#define IS_2300(isp) ((isp)->isp_type >= ISP_HA_FC_2300)
|
|
|
|
/*
|
|
* DMA cookie macros
|
|
*/
|
|
#define DMA_WD3(x) 0
|
|
#define DMA_WD2(x) 0
|
|
#define DMA_WD1(x) (((x) >> 16) & 0xffff)
|
|
#define DMA_WD0(x) (((x) & 0xffff))
|
|
|
|
/*
|
|
* Core System Function Prototypes
|
|
*/
|
|
|
|
/*
|
|
* Reset Hardware. Totally. Assumes that you'll follow this with
|
|
* a call to isp_init.
|
|
*/
|
|
void isp_reset(struct ispsoftc *);
|
|
|
|
/*
|
|
* Initialize Hardware to known state
|
|
*/
|
|
void isp_init(struct ispsoftc *);
|
|
|
|
/*
|
|
* Reset the ISP and call completion for any orphaned commands.
|
|
*/
|
|
void isp_reinit(struct ispsoftc *);
|
|
|
|
/*
|
|
* Internal Interrupt Service Routine
|
|
*
|
|
* The outer layers do the spade work to get the appropriate status register,
|
|
* semaphore register and first mailbox register (if appropriate). This also
|
|
* means that most spurious/bogus interrupts not for us can be filtered first.
|
|
*/
|
|
void isp_intr(struct ispsoftc *, u_int16_t, u_int16_t, u_int16_t);
|
|
|
|
|
|
/*
|
|
* Command Entry Point- Platform Dependent layers call into this
|
|
*/
|
|
int isp_start(XS_T *);
|
|
/* these values are what isp_start returns */
|
|
#define CMD_COMPLETE 101 /* command completed */
|
|
#define CMD_EAGAIN 102 /* busy- maybe retry later */
|
|
#define CMD_QUEUED 103 /* command has been queued for execution */
|
|
#define CMD_RQLATER 104 /* requeue this command later */
|
|
|
|
/*
|
|
* Command Completion Point- Core layers call out from this with completed cmds
|
|
*/
|
|
void isp_done(XS_T *);
|
|
|
|
/*
|
|
* Platform Dependent to External to Internal Control Function
|
|
*
|
|
* Assumes locks are held on entry. You should note that with many of
|
|
* these commands and locks may be released while this is occurring.
|
|
*
|
|
* A few notes about some of these functions:
|
|
*
|
|
* ISPCTL_FCLINK_TEST tests to make sure we have good fibre channel link.
|
|
* The argument is a pointer to an integer which is the time, in microseconds,
|
|
* we should wait to see whether we have good link. This test, if successful,
|
|
* lets us know our connection topology and our Loop ID/AL_PA and so on.
|
|
* You can't get anywhere without this.
|
|
*
|
|
* ISPCTL_SCAN_FABRIC queries the name server (if we're on a fabric) for
|
|
* all entities using the FC Generic Services subcommand GET ALL NEXT.
|
|
* For each found entity, an ISPASYNC_FABRICDEV event is generated (see
|
|
* below).
|
|
*
|
|
* ISPCTL_SCAN_LOOP does a local loop scan. This is only done if the connection
|
|
* topology is NL or FL port (private or public loop). Since the Qlogic f/w
|
|
* 'automatically' manages local loop connections, this function essentially
|
|
* notes the arrival, departure, and possible shuffling around of local loop
|
|
* entities. Thus for each arrival and departure this generates an isp_async
|
|
* event of ISPASYNC_PROMENADE (see below).
|
|
*
|
|
* ISPCTL_PDB_SYNC is somewhat misnamed. It actually is the final step, in
|
|
* order, of ISPCTL_FCLINK_TEST, ISPCTL_SCAN_FABRIC, and ISPCTL_SCAN_LOOP.
|
|
* The main purpose of ISPCTL_PDB_SYNC is to complete management of logging
|
|
* and logging out of fabric devices (if one is on a fabric) and then marking
|
|
* the 'loop state' as being ready to now be used for sending commands to
|
|
* devices. Originally fabric name server and local loop scanning were
|
|
* part of this function. It's now been separated to allow for finer control.
|
|
*/
|
|
typedef enum {
|
|
ISPCTL_RESET_BUS, /* Reset Bus */
|
|
ISPCTL_RESET_DEV, /* Reset Device */
|
|
ISPCTL_ABORT_CMD, /* Abort Command */
|
|
ISPCTL_UPDATE_PARAMS, /* Update Operating Parameters (SCSI) */
|
|
ISPCTL_FCLINK_TEST, /* Test FC Link Status */
|
|
ISPCTL_SCAN_FABRIC, /* (Re)scan Fabric Name Server */
|
|
ISPCTL_SCAN_LOOP, /* (Re)scan Local Loop */
|
|
ISPCTL_PDB_SYNC, /* Synchronize Port Database */
|
|
ISPCTL_SEND_LIP, /* Send a LIP */
|
|
ISPCTL_GET_POSMAP, /* Get FC-AL position map */
|
|
ISPCTL_RUN_MBOXCMD, /* run a mailbox command */
|
|
ISPCTL_TOGGLE_TMODE /* toggle target mode */
|
|
} ispctl_t;
|
|
int isp_control(struct ispsoftc *, ispctl_t, void *);
|
|
|
|
|
|
/*
|
|
* Platform Dependent to Internal to External Control Function
|
|
* (each platform must provide such a function)
|
|
*
|
|
* Assumes locks are held.
|
|
*
|
|
* A few notes about some of these functions:
|
|
*
|
|
* ISPASYNC_CHANGE_NOTIFY notifies the outer layer that a change has
|
|
* occurred that invalidates the list of fabric devices known and/or
|
|
* the list of known loop devices. The argument passed is a pointer
|
|
* whose values are defined below (local loop change, name server
|
|
* change, other). 'Other' may simply be a LIP, or a change in
|
|
* connection topology.
|
|
*
|
|
* ISPASYNC_FABRIC_DEV announces the next element in a list of
|
|
* fabric device names we're getting out of the name server. The
|
|
* argument points to a GET ALL NEXT response structure. The list
|
|
* is known to terminate with an entry that refers to ourselves.
|
|
* One of the main purposes of this function is to allow outer
|
|
* layers, which are OS dependent, to set policy as to which fabric
|
|
* devices might actually be logged into (and made visible) later
|
|
* at ISPCTL_PDB_SYNC time. Since there's a finite number of fabric
|
|
* devices that we can log into (256 less 3 'reserved' for F-port
|
|
* topologies), and fabrics can grow up to 8 million or so entries
|
|
* (24 bits of Port Address, less a wad of reserved spaces), clearly
|
|
* we had better let the OS determine login policy.
|
|
*
|
|
* ISPASYNC_PROMENADE has an argument that is a pointer to an integer which
|
|
* is an index into the portdb in the softc ('target'). Whether that entrie's
|
|
* valid tag is set or not says whether something has arrived or departed.
|
|
* The name refers to a favorite pastime of many city dwellers- watching
|
|
* people come and go, talking of Michaelangelo, and so on..
|
|
*
|
|
* ISPASYNC_UNHANDLED_RESPONSE gives outer layers a chance to parse a
|
|
* response queue entry not otherwise handled. The outer layer should
|
|
* return non-zero if it handled it. The 'arg' points to a (possibly only
|
|
* partially) massaged response queue entry (see the platform's
|
|
* ISP_UNSWIZZLE_RESPONSE macro).
|
|
*/
|
|
|
|
typedef enum {
|
|
ISPASYNC_NEW_TGT_PARAMS, /* New Target Parameters Negotiated */
|
|
ISPASYNC_BUS_RESET, /* Bus Was Reset */
|
|
ISPASYNC_LOOP_DOWN, /* FC Loop Down */
|
|
ISPASYNC_LOOP_UP, /* FC Loop Up */
|
|
ISPASYNC_LIP, /* LIP Received */
|
|
ISPASYNC_LOOP_RESET, /* Loop Reset Received */
|
|
ISPASYNC_CHANGE_NOTIFY, /* FC Change Notification */
|
|
ISPASYNC_FABRIC_DEV, /* FC Fabric Device Arrival */
|
|
ISPASYNC_PROMENADE, /* FC Objects coming && going */
|
|
ISPASYNC_TARGET_MESSAGE, /* target message */
|
|
ISPASYNC_TARGET_EVENT, /* target asynchronous event */
|
|
ISPASYNC_TARGET_ACTION, /* other target command action */
|
|
ISPASYNC_CONF_CHANGE, /* Platform Configuration Change */
|
|
ISPASYNC_UNHANDLED_RESPONSE, /* Unhandled Response Entry */
|
|
ISPASYNC_FW_CRASH /* Firmware has crashed */
|
|
} ispasync_t;
|
|
int isp_async(struct ispsoftc *, ispasync_t, void *);
|
|
|
|
#define ISPASYNC_CHANGE_PDB ((void *) 0)
|
|
#define ISPASYNC_CHANGE_SNS ((void *) 1)
|
|
#define ISPASYNC_CHANGE_OTHER ((void *) 2)
|
|
|
|
/*
|
|
* Platform Dependent Error and Debug Printout
|
|
*/
|
|
#ifdef __GNUC__
|
|
void isp_prt(struct ispsoftc *, int level, const char *, ...)
|
|
__attribute__((__format__(__printf__,3,4)));
|
|
#else
|
|
void isp_prt(struct ispsoftc *, int level, const char *, ...);
|
|
#endif
|
|
|
|
#define ISP_LOGALL 0x0 /* log always */
|
|
#define ISP_LOGCONFIG 0x1 /* log configuration messages */
|
|
#define ISP_LOGINFO 0x2 /* log informational messages */
|
|
#define ISP_LOGWARN 0x4 /* log warning messages */
|
|
#define ISP_LOGERR 0x8 /* log error messages */
|
|
#define ISP_LOGDEBUG0 0x10 /* log simple debug messages */
|
|
#define ISP_LOGDEBUG1 0x20 /* log intermediate debug messages */
|
|
#define ISP_LOGDEBUG2 0x40 /* log most debug messages */
|
|
#define ISP_LOGDEBUG3 0x80 /* log high frequency debug messages */
|
|
#define ISP_LOGDEBUG4 0x100 /* log high frequency debug messages */
|
|
#define ISP_LOGTDEBUG0 0x200 /* log simple debug messages (target mode) */
|
|
#define ISP_LOGTDEBUG1 0x400 /* log intermediate debug messages (target) */
|
|
#define ISP_LOGTDEBUG2 0x800 /* log all debug messages (target) */
|
|
|
|
/*
|
|
* Each Platform provides it's own isposinfo substructure of the ispsoftc
|
|
* defined above.
|
|
*
|
|
* Each platform must also provide the following macros/defines:
|
|
*
|
|
*
|
|
* INLINE - platform specific define for 'inline' functions
|
|
*
|
|
* ISP_DMA_ADDR_T - platform specific dma address coookie- basically
|
|
* the largest integer that can hold the 32 or
|
|
* 64 bit value appropriate for the QLogic's DMA
|
|
* addressing. Defaults to u_int32_t.
|
|
*
|
|
* ISP2100_SCRLEN - length for the Fibre Channel scratch DMA area
|
|
*
|
|
* MEMZERO(dst, src) platform zeroing function
|
|
* MEMCPY(dst, src, count) platform copying function
|
|
* SNPRINTF(buf, bufsize, fmt, ...) snprintf
|
|
* STRNCAT(dstbuf, size, srcbuf) strncat
|
|
* USEC_DELAY(usecs) microsecond spindelay function
|
|
* USEC_SLEEP(isp, usecs) microsecond sleep function
|
|
*
|
|
* NANOTIME_T nanosecond time type
|
|
*
|
|
* GET_NANOTIME(NANOTIME_T *) get current nanotime.
|
|
*
|
|
* GET_NANOSEC(NANOTIME_T *) get u_int64_t from NANOTIME_T
|
|
*
|
|
* NANOTIME_SUB(NANOTIME_T *, NANOTIME_T *)
|
|
* subtract two NANOTIME_T values
|
|
*
|
|
*
|
|
* MAXISPREQUEST(struct ispsoftc *) maximum request queue size
|
|
* for this particular board type
|
|
*
|
|
* MEMORYBARRIER(struct ispsoftc *, barrier_type, offset, size)
|
|
*
|
|
* Function/Macro the provides memory synchronization on
|
|
* various objects so that the ISP's and the system's view
|
|
* of the same object is consistent.
|
|
*
|
|
* MBOX_ACQUIRE(struct ispsoftc *) acquire lock on mailbox regs
|
|
* MBOX_WAIT_COMPLETE(struct ispsoftc *) wait for mailbox cmd to be done
|
|
* MBOX_NOTIFY_COMPLETE(struct ispsoftc *) notification of mbox cmd donee
|
|
* MBOX_RELEASE(struct ispsoftc *) release lock on mailbox regs
|
|
*
|
|
*
|
|
* SCSI_GOOD SCSI 'Good' Status
|
|
* SCSI_CHECK SCSI 'Check Condition' Status
|
|
* SCSI_BUSY SCSI 'Busy' Status
|
|
* SCSI_QFULL SCSI 'Queue Full' Status
|
|
*
|
|
* XS_T Platform SCSI transaction type (i.e., command for HBA)
|
|
* XS_ISP(xs) gets an instance out of an XS_T
|
|
* XS_CHANNEL(xs) gets the channel (bus # for DUALBUS cards) ""
|
|
* XS_TGT(xs) gets the target ""
|
|
* XS_LUN(xs) gets the lun ""
|
|
* XS_CDBP(xs) gets a pointer to the scsi CDB ""
|
|
* XS_CDBLEN(xs) gets the CDB's length ""
|
|
* XS_XFRLEN(xs) gets the associated data transfer length ""
|
|
* XS_TIME(xs) gets the time (in milliseconds) for this command
|
|
* XS_RESID(xs) gets the current residual count
|
|
* XS_STSP(xs) gets a pointer to the SCSI status byte ""
|
|
* XS_SNSP(xs) gets a pointer to the associate sense data
|
|
* XS_SNSLEN(xs) gets the length of sense data storage
|
|
* XS_SNSKEY(xs) dereferences XS_SNSP to get the current stored Sense Key
|
|
* XS_TAG_P(xs) predicate of whether this command should be tagged
|
|
* XS_TAG_TYPE(xs) which type of tag to use
|
|
* XS_SETERR(xs) set error state
|
|
*
|
|
* HBA_NOERROR command has no erros
|
|
* HBA_BOTCH hba botched something
|
|
* HBA_CMDTIMEOUT command timed out
|
|
* HBA_SELTIMEOUT selection timed out (also port logouts for FC)
|
|
* HBA_TGTBSY target returned a BUSY status
|
|
* HBA_BUSRESET bus reset destroyed command
|
|
* HBA_ABORTED command was aborted (by request)
|
|
* HBA_DATAOVR a data overrun was detected
|
|
* HBA_ARQFAIL Automatic Request Sense failed
|
|
*
|
|
* XS_ERR(xs) return current error state
|
|
* XS_NOERR(xs) there is no error currently set
|
|
* XS_INITERR(xs) initialize error state
|
|
*
|
|
* XS_SAVE_SENSE(xs, sp) save sense data
|
|
*
|
|
* XS_SET_STATE_STAT(isp, sp, xs) platform dependent interpreter of
|
|
* response queue entry status bits
|
|
*
|
|
*
|
|
* DEFAULT_IID(struct ispsoftc *) Default SCSI initiator ID
|
|
* DEFAULT_LOOPID(struct ispsoftc *) Default FC Loop ID
|
|
* DEFAULT_NODEWWN(struct ispsoftc *) Default Node WWN
|
|
* DEFAULT_PORTWWN(struct ispsoftc *) Default Port WWN
|
|
* These establish reasonable defaults for each platform.
|
|
* These must be available independent of card NVRAM and are
|
|
* to be used should NVRAM not be readable.
|
|
*
|
|
* ISP_NODEWWN(struct ispsoftc *) FC Node WWN to use
|
|
* ISP_PORTWWN(struct ispsoftc *) FC Port WWN to use
|
|
*
|
|
* These are to be used after NVRAM is read. The tags
|
|
* in fcparam.isp_{node,port}wwn reflect the values
|
|
* read from NVRAM (possibly corrected for card botches).
|
|
* Each platform can take that information and override
|
|
* it or ignore and return the Node and Port WWNs to be
|
|
* used when sending the Qlogic f/w the Initialization Control
|
|
* Block.
|
|
*
|
|
* (XXX these do endian specific transformations- in transition XXX)
|
|
* ISP_SWIZZLE_ICB
|
|
* ISP_UNSWIZZLE_AND_COPY_PDBP
|
|
* ISP_SWIZZLE_CONTINUATION
|
|
* ISP_SWIZZLE_REQUEST
|
|
* ISP_UNSWIZZLE_RESPONSE
|
|
* ISP_SWIZZLE_SNS_REQ
|
|
* ISP_UNSWIZZLE_SNS_RSP
|
|
* ISP_SWIZZLE_NVRAM_WORD
|
|
*/
|
|
|
|
#endif /* _ISPVAR_H */
|