isp_netbsd.c revision 1.5.2.2
1 1.5.2.2 cgd /* $NetBSD: isp_netbsd.c,v 1.5.2.2 1998/11/07 05:50:35 cgd Exp $ */ 2 1.5.2.2 cgd /* 3 1.5.2.2 cgd * Platform (NetBSD) dependent common attachment code for Qlogic adapters. 4 1.5.2.2 cgd * 5 1.5.2.2 cgd *--------------------------------------- 6 1.5.2.2 cgd * Copyright (c) 1997, 1998 by Matthew Jacob 7 1.5.2.2 cgd * NASA/Ames Research Center 8 1.5.2.2 cgd * All rights reserved. 9 1.5.2.2 cgd *--------------------------------------- 10 1.5.2.2 cgd * 11 1.5.2.2 cgd * Redistribution and use in source and binary forms, with or without 12 1.5.2.2 cgd * modification, are permitted provided that the following conditions 13 1.5.2.2 cgd * are met: 14 1.5.2.2 cgd * 1. Redistributions of source code must retain the above copyright 15 1.5.2.2 cgd * notice immediately at the beginning of the file, without modification, 16 1.5.2.2 cgd * this list of conditions, and the following disclaimer. 17 1.5.2.2 cgd * 2. Redistributions in binary form must reproduce the above copyright 18 1.5.2.2 cgd * notice, this list of conditions and the following disclaimer in the 19 1.5.2.2 cgd * documentation and/or other materials provided with the distribution. 20 1.5.2.2 cgd * 3. The name of the author may not be used to endorse or promote products 21 1.5.2.2 cgd * derived from this software without specific prior written permission. 22 1.5.2.2 cgd * 23 1.5.2.2 cgd * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 24 1.5.2.2 cgd * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 25 1.5.2.2 cgd * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 26 1.5.2.2 cgd * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE FOR 27 1.5.2.2 cgd * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 28 1.5.2.2 cgd * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 29 1.5.2.2 cgd * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 30 1.5.2.2 cgd * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 31 1.5.2.2 cgd * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 32 1.5.2.2 cgd * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 33 1.5.2.2 cgd * SUCH DAMAGE. 34 1.5.2.2 cgd * 35 1.5.2.2 cgd * The author may be reached via electronic communications at 36 1.5.2.2 cgd * 37 1.5.2.2 cgd * mjacob (at) nas.nasa.gov 38 1.5.2.2 cgd * mjacob (at) feral.com 39 1.5.2.2 cgd * 40 1.5.2.2 cgd * or, via United States Postal Address 41 1.5.2.2 cgd * 42 1.5.2.2 cgd * Matthew Jacob 43 1.5.2.2 cgd * Feral Software 44 1.5.2.2 cgd * 2339 3rd Street 45 1.5.2.2 cgd * Suite 24 46 1.5.2.2 cgd * San Francisco, CA, 94107 47 1.5.2.2 cgd */ 48 1.5.2.2 cgd 49 1.5.2.2 cgd #include <dev/ic/isp_netbsd.h> 50 1.5.2.2 cgd 51 1.5.2.2 cgd struct cfdriver isp_cd = { 52 1.5.2.2 cgd NULL, "isp", DV_DULL 53 1.5.2.2 cgd }; 54 1.5.2.2 cgd 55 1.5.2.2 cgd static void ispminphys __P((struct buf *)); 56 1.5.2.2 cgd static int32_t ispcmd __P((ISP_SCSI_XFER_T *)); 57 1.5.2.2 cgd 58 1.5.2.2 cgd static struct scsipi_adapter isp_switch = { 59 1.5.2.2 cgd ispcmd, /* scsipi_cmd */ 60 1.5.2.2 cgd ispminphys, /* scsipi_minphys */ 61 1.5.2.2 cgd NULL, /* scsipi_ioctl */ 62 1.5.2.2 cgd }; 63 1.5.2.2 cgd 64 1.5.2.2 cgd static struct scsipi_device isp_dev = { NULL, NULL, NULL, NULL }; 65 1.5.2.2 cgd static int isp_poll __P((struct ispsoftc *, ISP_SCSI_XFER_T *, int)); 66 1.5.2.2 cgd 67 1.5.2.2 cgd /* 68 1.5.2.2 cgd * Complete attachment of hardware, include subdevices. 69 1.5.2.2 cgd */ 70 1.5.2.2 cgd void 71 1.5.2.2 cgd isp_attach(isp) 72 1.5.2.2 cgd struct ispsoftc *isp; 73 1.5.2.2 cgd { 74 1.5.2.2 cgd isp->isp_state = ISP_RUNSTATE; 75 1.5.2.2 cgd isp->isp_osinfo._link.scsipi_scsi.channel = SCSI_CHANNEL_ONLY_ONE; 76 1.5.2.2 cgd isp->isp_osinfo._link.adapter_softc = isp; 77 1.5.2.2 cgd isp->isp_osinfo._link.device = &isp_dev; 78 1.5.2.2 cgd isp->isp_osinfo._link.adapter = &isp_switch; 79 1.5.2.2 cgd 80 1.5.2.2 cgd if (isp->isp_type & ISP_HA_FC) { 81 1.5.2.2 cgd isp->isp_osinfo._link.scsipi_scsi.max_target = MAX_FC_TARG-1; 82 1.5.2.2 cgd isp->isp_osinfo._link.openings = 83 1.5.2.2 cgd RQUEST_QUEUE_LEN / (MAX_FC_TARG-1); 84 1.5.2.2 cgd isp->isp_osinfo._link.scsipi_scsi.adapter_target = 0xff; 85 1.5.2.2 cgd } else { 86 1.5.2.2 cgd isp->isp_osinfo._link.openings = 87 1.5.2.2 cgd RQUEST_QUEUE_LEN / (MAX_TARGETS-1); 88 1.5.2.2 cgd isp->isp_osinfo._link.scsipi_scsi.max_target = MAX_TARGETS-1; 89 1.5.2.2 cgd isp->isp_osinfo._link.scsipi_scsi.adapter_target = 90 1.5.2.2 cgd ((sdparam *)isp->isp_param)->isp_initiator_id; 91 1.5.2.2 cgd } 92 1.5.2.2 cgd if (isp->isp_osinfo._link.openings < 2) 93 1.5.2.2 cgd isp->isp_osinfo._link.openings = 2; 94 1.5.2.2 cgd isp->isp_osinfo._link.type = BUS_SCSI; 95 1.5.2.2 cgd config_found((void *)isp, &isp->isp_osinfo._link, scsiprint); 96 1.5.2.2 cgd } 97 1.5.2.2 cgd 98 1.5.2.2 cgd /* 99 1.5.2.2 cgd * minphys our xfers 100 1.5.2.2 cgd * 101 1.5.2.2 cgd * Unfortunately, the buffer pointer describes the target device- not the 102 1.5.2.2 cgd * adapter device, so we can't use the pointer to find out what kind of 103 1.5.2.2 cgd * adapter we are and adjust accordingly. 104 1.5.2.2 cgd */ 105 1.5.2.2 cgd 106 1.5.2.2 cgd static void 107 1.5.2.2 cgd ispminphys(bp) 108 1.5.2.2 cgd struct buf *bp; 109 1.5.2.2 cgd { 110 1.5.2.2 cgd /* 111 1.5.2.2 cgd * XX: Only the 1020 has a 24 bit limit. 112 1.5.2.2 cgd */ 113 1.5.2.2 cgd if (bp->b_bcount >= (1 << 24)) { 114 1.5.2.2 cgd bp->b_bcount = (1 << 24); 115 1.5.2.2 cgd } 116 1.5.2.2 cgd minphys(bp); 117 1.5.2.2 cgd } 118 1.5.2.2 cgd 119 1.5.2.2 cgd static int 120 1.5.2.2 cgd ispcmd(xs) 121 1.5.2.2 cgd ISP_SCSI_XFER_T *xs; 122 1.5.2.2 cgd { 123 1.5.2.2 cgd struct ispsoftc *isp; 124 1.5.2.2 cgd int result; 125 1.5.2.2 cgd ISP_LOCKVAL_DECL; 126 1.5.2.2 cgd 127 1.5.2.2 cgd isp = XS_ISP(xs); 128 1.5.2.2 cgd ISP_LOCK(isp); 129 1.5.2.2 cgd /* 130 1.5.2.2 cgd * This is less efficient than I would like in that the 131 1.5.2.2 cgd * majority of cases will have to do some pointer deferences 132 1.5.2.2 cgd * to find out that things don't need to be updated. 133 1.5.2.2 cgd */ 134 1.5.2.2 cgd if ((xs->flags & SCSI_AUTOCONF) == 0 && (isp->isp_type & ISP_HA_SCSI)) { 135 1.5.2.2 cgd sdparam *sdp = isp->isp_param; 136 1.5.2.2 cgd if (sdp->isp_devparam[XS_TGT(xs)].dev_flags != 137 1.5.2.2 cgd sdp->isp_devparam[XS_TGT(xs)].cur_dflags) { 138 1.5.2.2 cgd u_int16_t f = DPARM_WIDE|DPARM_SYNC|DPARM_TQING; 139 1.5.2.2 cgd #ifdef SDEV_NOSYNC 140 1.5.2.2 cgd if (xs->sc_link->quirks & SDEV_NOSYNC) 141 1.5.2.2 cgd f &= ~DPARM_SYNC; 142 1.5.2.2 cgd #endif 143 1.5.2.2 cgd #ifdef SDEV_NOWIDE 144 1.5.2.2 cgd if (xs->sc_link->quirks & SDEV_NOWIDE) 145 1.5.2.2 cgd f &= ~DPARM_WIDE; 146 1.5.2.2 cgd #endif 147 1.5.2.2 cgd #ifdef SDEV_NOTAG 148 1.5.2.2 cgd if (xs->sc_link->quirks & SDEV_NOTAG) 149 1.5.2.2 cgd f &= ~DPARM_TQING; 150 1.5.2.2 cgd #endif 151 1.5.2.2 cgd sdp->isp_devparam[XS_TGT(xs)].dev_flags &= 152 1.5.2.2 cgd ~(DPARM_WIDE|DPARM_SYNC|DPARM_TQING); 153 1.5.2.2 cgd sdp->isp_devparam[XS_TGT(xs)].dev_flags |= f; 154 1.5.2.2 cgd sdp->isp_devparam[XS_TGT(xs)].dev_update = 1; 155 1.5.2.2 cgd isp->isp_update = 1; 156 1.5.2.2 cgd } 157 1.5.2.2 cgd } 158 1.5.2.2 cgd result = ispscsicmd(xs); 159 1.5.2.2 cgd if (result != CMD_QUEUED || (xs->flags & SCSI_POLL) == 0) { 160 1.5.2.2 cgd ISP_UNLOCK(isp); 161 1.5.2.2 cgd return (result); 162 1.5.2.2 cgd } 163 1.5.2.2 cgd 164 1.5.2.2 cgd /* 165 1.5.2.2 cgd * If we can't use interrupts, poll on completion. 166 1.5.2.2 cgd */ 167 1.5.2.2 cgd if (isp_poll(isp, xs, XS_TIME(xs))) { 168 1.5.2.2 cgd /* 169 1.5.2.2 cgd * If no other error occurred but we didn't finish, 170 1.5.2.2 cgd * something bad happened. 171 1.5.2.2 cgd */ 172 1.5.2.2 cgd if (XS_IS_CMD_DONE(xs) == 0) { 173 1.5.2.2 cgd isp->isp_nactive--; 174 1.5.2.2 cgd if (isp->isp_nactive < 0) 175 1.5.2.2 cgd isp->isp_nactive = 0; 176 1.5.2.2 cgd if (XS_NOERR(xs)) { 177 1.5.2.2 cgd isp_lostcmd(isp, xs); 178 1.5.2.2 cgd XS_SETERR(xs, HBA_BOTCH); 179 1.5.2.2 cgd } 180 1.5.2.2 cgd } 181 1.5.2.2 cgd } 182 1.5.2.2 cgd ISP_UNLOCK(isp); 183 1.5.2.2 cgd return (CMD_COMPLETE); 184 1.5.2.2 cgd } 185 1.5.2.2 cgd 186 1.5.2.2 cgd static int 187 1.5.2.2 cgd isp_poll(isp, xs, mswait) 188 1.5.2.2 cgd struct ispsoftc *isp; 189 1.5.2.2 cgd ISP_SCSI_XFER_T *xs; 190 1.5.2.2 cgd int mswait; 191 1.5.2.2 cgd { 192 1.5.2.2 cgd 193 1.5.2.2 cgd while (mswait) { 194 1.5.2.2 cgd /* Try the interrupt handling routine */ 195 1.5.2.2 cgd (void)isp_intr((void *)isp); 196 1.5.2.2 cgd 197 1.5.2.2 cgd /* See if the xs is now done */ 198 1.5.2.2 cgd if (XS_IS_CMD_DONE(xs)) { 199 1.5.2.2 cgd return (0); 200 1.5.2.2 cgd } 201 1.5.2.2 cgd SYS_DELAY(1000); /* wait one millisecond */ 202 1.5.2.2 cgd mswait--; 203 1.5.2.2 cgd } 204 1.5.2.2 cgd return (1); 205 1.5.2.2 cgd } 206
Indexes created Tue Sep 30 20:09:53 GMT 2025