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1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 | /* * QLogic ISP2x00 SCSI-FCP * * Written by Erik H. Moe, ehm@cris.com * Copyright 1995, Erik H. Moe * * This program is free software; you can redistribute it and/or modify it * under the terms of the GNU General Public License as published by the * Free Software Foundation; either version 2, or (at your option) any * later version. * * This program is distributed in the hope that it will be useful, but * WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU * General Public License for more details. */ /* Renamed and updated to 1.3.x by Michael Griffith <grif@cs.ucr.edu> */ /* This is a version of the isp1020 driver which was modified by * Chris Loveland <cwl@iol.unh.edu> to support the isp2x00 */ /* * $Date: 1995/09/22 02:32:56 $ * $Revision: 0.5 $ * * $Log: isp1020.h,v $ * Revision 0.5 1995/09/22 02:32:56 root * do auto request sense * * Revision 0.4 1995/08/07 04:48:28 root * supply firmware with driver. * numerous bug fixes/general cleanup of code. * * Revision 0.3 1995/07/16 16:17:16 root * added reset/abort code. * * Revision 0.2 1995/06/29 03:19:43 root * fixed biosparam. * added queue protocol. * * Revision 0.1 1995/06/25 01:56:13 root * Initial release. * */ #ifndef _QLOGICFC_H #define _QLOGICFC_H /* * With the qlogic interface, every queue slot can hold a SCSI * command with up to 2 scatter/gather entries. If we need more * than 2 entries, continuation entries can be used that hold * another 5 entries each. Unlike for other drivers, this means * that the maximum number of scatter/gather entries we can * support at any given time is a function of the number of queue * slots available. That is, host->can_queue and host->sg_tablesize * are dynamic and _not_ independent. This all works fine because * requests are queued serially and the scatter/gather limit is * determined for each queue request anew. */ #define DATASEGS_PER_COMMAND 2 #define DATASEGS_PER_CONT 5 #define QLOGICFC_REQ_QUEUE_LEN 127 /* must be power of two - 1 */ #define QLOGICFC_MAX_SG(ql) (DATASEGS_PER_COMMAND + (((ql) > 0) ? DATASEGS_PER_CONT*((ql) - 1) : 0)) #define QLOGICFC_CMD_PER_LUN 8 int isp2x00_detect(Scsi_Host_Template *); int isp2x00_release(struct Scsi_Host *); const char * isp2x00_info(struct Scsi_Host *); int isp2x00_queuecommand(Scsi_Cmnd *, void (* done)(Scsi_Cmnd *)); int isp2x00_abort(Scsi_Cmnd *); int isp2x00_reset(Scsi_Cmnd *, unsigned int); int isp2x00_biosparam(Disk *, kdev_t, int[]); #ifndef NULL #define NULL (0) #endif #define QLOGICFC { \ detect: isp2x00_detect, \ release: isp2x00_release, \ info: isp2x00_info, \ queuecommand: isp2x00_queuecommand, \ eh_abort_handler: isp2x00_abort, \ reset: isp2x00_reset, \ bios_param: isp2x00_biosparam, \ can_queue: QLOGICFC_REQ_QUEUE_LEN, \ this_id: -1, \ sg_tablesize: QLOGICFC_MAX_SG(QLOGICFC_REQ_QUEUE_LEN), \ cmd_per_lun: QLOGICFC_CMD_PER_LUN, \ present: 0, \ unchecked_isa_dma: 0, \ use_clustering: ENABLE_CLUSTERING \ } #endif /* _QLOGICFC_H */ |