| /* |
| * 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 255 /* 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(struct scsi_device *, struct block_device *, |
| sector_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, \ |
| .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, \ |
| .highmem_io = 1 \ |
| } |
| |
| #endif /* _QLOGICFC_H */ |
| |
| |
| |
