linux-imx

/* SPDX-License-Identifier: GPL-2.0 */

/* qlogicpti.h: Performance Technologies QlogicISP sbus card defines.

 *

 * Copyright (C) 1996 David S. Miller (davem@caipfs.rutgers.edu)

 */

​

#ifndef _QLOGICPTI_H

#define _QLOGICPTI_H

​

/* Qlogic/SBUS controller registers. */

#define SBUS_CFG1   0x006UL

#define SBUS_CTRL   0x008UL

#define SBUS_STAT   0x00aUL

#define SBUS_SEMAPHORE  0x00cUL

#define CMD_DMA_CTRL    0x022UL

#define DATA_DMA_CTRL   0x042UL

#define MBOX0       0x080UL

#define MBOX1       0x082UL

#define MBOX2       0x084UL

#define MBOX3       0x086UL

#define MBOX4       0x088UL

#define MBOX5       0x08aUL

#define CPU_CMD     0x214UL

#define CPU_ORIDE   0x224UL

#define CPU_PCTRL   0x272UL

#define CPU_PDIFF   0x276UL

#define RISC_PSR    0x420UL

#define RISC_MTREG  0x42EUL

#define HCCTRL      0x440UL

​

/* SCSI parameters for this driver. */

#define MAX_TARGETS 16

#define MAX_LUNS    8

​

/* 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 QLOGICPTI_REQ_QUEUE_LEN 255 /* must be power of two - 1 */

#define QLOGICPTI_MAX_SG(ql)    (4 + (((ql) > 0) ? 7*((ql) - 1) : 0))

​

/* mailbox command complete status codes */

#define MBOX_COMMAND_COMPLETE       0x4000

#define INVALID_COMMAND         0x4001

#define HOST_INTERFACE_ERROR        0x4002

#define TEST_FAILED         0x4003

#define COMMAND_ERROR           0x4005

#define COMMAND_PARAM_ERROR     0x4006

​

/* async event status codes */

#define ASYNC_SCSI_BUS_RESET        0x8001

#define SYSTEM_ERROR            0x8002

#define REQUEST_TRANSFER_ERROR      0x8003

#define RESPONSE_TRANSFER_ERROR     0x8004

#define REQUEST_QUEUE_WAKEUP        0x8005

#define EXECUTION_TIMEOUT_RESET     0x8006