1 /* $OpenBSD: ioprbsvar.h,v 1.1 2001/06/29 06:05:03 niklas Exp $ */ 2 3 /* 4 * Copyright (c) 2001 Niklas Hallqvist 5 * All rights reserved. 6 * 7 * Redistribution and use in source and binary forms, with or without 8 * modification, are permitted provided that the following conditions 9 * are met: 10 * 1. Redistributions of source code must retain the above copyright 11 * notice, this list of conditions and the following disclaimer. 12 * 2. Redistributions in binary form must reproduce the above copyright 13 * notice, this list of conditions and the following disclaimer in the 14 * documentation and/or other materials provided with the distribution. 15 * 16 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 17 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 18 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 19 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 20 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 21 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 22 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 23 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 24 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 25 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 26 * SUCH DAMAGE. 27 */ 28 29 #ifndef _I2O_IOPRBSVAR_H_ 30 #define _I2O_IOPRBSVAR_H_ 31 32 /* 33 * A command contol block, one for each corresponding command index of the 34 * controller. 35 */ 36 struct ioprbs_ccb { 37 TAILQ_ENTRY(ioprbs_ccb) ic_chain; 38 struct scsi_xfer *ic_xs; 39 #if 0 40 struct aac_fib *ac_fib; /* FIB associated with this command */ 41 bus_addr_t ac_fibphys; /* bus address of the FIB */ 42 bus_dmamap_t ac_dmamap_xfer; 43 struct aac_sg_table *ac_sgtable;/* pointer to s/g table in command */ 44 #endif 45 int ic_timeout; 46 u_int32_t ic_blockno; 47 u_int32_t ic_blockcnt; 48 u_int8_t ic_flags; 49 #define IOPRBS_ICF_WATCHDOG 0x1 50 #define IOPRBS_ICF_COMPLETED 0x2 51 }; 52 53 /* XXX What is correct? */ 54 #define IOPRBS_MAX_CCBS 256 55 56 struct ioprbs_softc { 57 struct device sc_dv; /* Generic device data */ 58 struct scsi_link sc_link; /* Virtual SCSI bus for cache devs */ 59 struct iop_initiator sc_ii; 60 struct iop_initiator sc_eventii; 61 62 int sc_flags; 63 int sc_secperunit; /* # sectors in total */ 64 int sc_secsize; /* sector size in bytes */ 65 int sc_maxxfer; /* max xfer size in bytes */ 66 int sc_maxqueuecnt; /* maximum h/w queue depth */ 67 int sc_queuecnt; /* current h/w queue depth */ 68 int sc_ncylinders; /* # cylinders */ 69 int sc_nheads; /* # heads */ 70 int sc_nsectors; /* # sectors per track */ 71 72 struct ioprbs_ccb sc_ccbs[IOPRBS_MAX_CCBS]; 73 TAILQ_HEAD(, ioprbs_ccb) sc_free_ccb, sc_ccbq; 74 /* commands on hold for controller resources */ 75 TAILQ_HEAD(, ioprbs_ccb) sc_ready; 76 /* commands which have been returned by the controller */ 77 LIST_HEAD(, scsi_xfer) sc_queue; 78 struct scsi_xfer *sc_queuelast; 79 }; 80 81 #define IOPRBS_CLAIMED 0x01 82 #define IOPRBS_NEW_EVTMASK 0x02 83 #define IOPRBS_ENABLED 0x04 84 85 #define IOPRBS_TIMEOUT (30 * 1000) 86 #define IOPRBS_BLOCK_SIZE 512 87 88 /* 89 * Wait this long for a lost interrupt to get detected. 90 */ 91 #define IOPRBS_WATCH_TIMEOUT 10000 /* 10000 * 1ms = 10s */ 92 93 94 /* XXX These have to become spinlocks in case of SMP */ 95 #define IOPRBS_LOCK(sc) splbio() 96 #define IOPRBS_UNLOCK(sc, lock) splx(lock) 97 typedef int ioprbs_lock_t; 98 99 #endif /* !_I2O_IOPRMSVAR_H_ */ 100