| /* |
| * QLogic ISP1020 Intelligent SCSI Processor Driver (PCI) |
| * 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> */ |
| |
| /* |
| * $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 _QLOGICISP_H |
| #define _QLOGICISP_H |
| |
| /* |
| * With the qlogic interface, every queue slot can hold a SCSI |
| * command with up to 4 scatter/gather entries. If we need more |
| * than 4 entries, continuation entries can be used that hold |
| * another 7 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 QLOGICISP_REQ_QUEUE_LEN 63 /* must be power of two - 1 */ |
| #define QLOGICISP_MAX_SG(ql) (4 + ((ql) > 0) ? 7*((ql) - 1) : 0) |
| |
| int isp1020_detect(Scsi_Host_Template *); |
| int isp1020_release(struct Scsi_Host *); |
| const char * isp1020_info(struct Scsi_Host *); |
| int isp1020_queuecommand(Scsi_Cmnd *, void (* done)(Scsi_Cmnd *)); |
| int isp1020_abort(Scsi_Cmnd *); |
| int isp1020_reset(Scsi_Cmnd *, unsigned int); |
| int isp1020_biosparam(Disk *, kdev_t, int[]); |
| |
| #ifndef NULL |
| #define NULL (0) |
| #endif |
| |
| #define QLOGICISP { \ |
| detect: isp1020_detect, \ |
| release: isp1020_release, \ |
| info: isp1020_info, \ |
| queuecommand: isp1020_queuecommand, \ |
| abort: isp1020_abort, \ |
| reset: isp1020_reset, \ |
| bios_param: isp1020_biosparam, \ |
| can_queue: QLOGICISP_REQ_QUEUE_LEN, \ |
| this_id: -1, \ |
| sg_tablesize: QLOGICISP_MAX_SG(QLOGICISP_REQ_QUEUE_LEN), \ |
| cmd_per_lun: 1, \ |
| present: 0, \ |
| unchecked_isa_dma: 0, \ |
| use_clustering: DISABLE_CLUSTERING \ |
| } |
| |
| #endif /* _QLOGICISP_H */ |
