^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1) // SPDX-License-Identifier: GPL-2.0-or-later
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2) /**************************************************************************
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3) * Initio 9100 device driver for Linux.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 5) * Copyright (c) 1994-1998 Initio Corporation
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 6) * Copyright (c) 1998 Bas Vermeulen <bvermeul@blackstar.xs4all.nl>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 7) * Copyright (c) 2004 Christoph Hellwig <hch@lst.de>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 8) * Copyright (c) 2007 Red Hat
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 9) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 10) *************************************************************************
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 11) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 12) * DESCRIPTION:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 13) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 14) * This is the Linux low-level SCSI driver for Initio INI-9X00U/UW SCSI host
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 15) * adapters
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 16) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 17) * 08/06/97 hc - v1.01h
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 18) * - Support inic-940 and inic-935
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 19) * 09/26/97 hc - v1.01i
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 20) * - Make correction from J.W. Schultz suggestion
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 21) * 10/13/97 hc - Support reset function
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 22) * 10/21/97 hc - v1.01j
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 23) * - Support 32 LUN (SCSI 3)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 24) * 01/14/98 hc - v1.01k
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 25) * - Fix memory allocation problem
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 26) * 03/04/98 hc - v1.01l
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 27) * - Fix tape rewind which will hang the system problem
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 28) * - Set can_queue to initio_num_scb
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 29) * 06/25/98 hc - v1.01m
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 30) * - Get it work for kernel version >= 2.1.75
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 31) * - Dynamic assign SCSI bus reset holding time in initio_init()
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 32) * 07/02/98 hc - v1.01n
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 33) * - Support 0002134A
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 34) * 08/07/98 hc - v1.01o
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 35) * - Change the initio_abort_srb routine to use scsi_done. <01>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 36) * 09/07/98 hl - v1.02
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 37) * - Change the INI9100U define and proc_dir_entry to
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 38) * reflect the newer Kernel 2.1.118, but the v1.o1o
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 39) * should work with Kernel 2.1.118.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 40) * 09/20/98 wh - v1.02a
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 41) * - Support Abort command.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 42) * - Handle reset routine.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 43) * 09/21/98 hl - v1.03
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 44) * - remove comments.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 45) * 12/09/98 bv - v1.03a
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 46) * - Removed unused code
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 47) * 12/13/98 bv - v1.03b
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 48) * - Remove cli() locking for kernels >= 2.1.95. This uses
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 49) * spinlocks to serialize access to the pSRB_head and
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 50) * pSRB_tail members of the HCS structure.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 51) * 09/01/99 bv - v1.03d
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 52) * - Fixed a deadlock problem in SMP.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 53) * 21/01/99 bv - v1.03e
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 54) * - Add support for the Domex 3192U PCI SCSI
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 55) * This is a slightly modified patch by
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 56) * Brian Macy <bmacy@sunshinecomputing.com>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 57) * 22/02/99 bv - v1.03f
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 58) * - Didn't detect the INIC-950 in 2.0.x correctly.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 59) * Now fixed.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 60) * 05/07/99 bv - v1.03g
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 61) * - Changed the assumption that HZ = 100
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 62) * 10/17/03 mc - v1.04
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 63) * - added new DMA API support
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 64) * 06/01/04 jmd - v1.04a
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 65) * - Re-add reset_bus support
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 66) **************************************************************************/
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 67)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 68) #include <linux/module.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 69) #include <linux/errno.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 70) #include <linux/delay.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 71) #include <linux/pci.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 72) #include <linux/init.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 73) #include <linux/blkdev.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 74) #include <linux/spinlock.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 75) #include <linux/stat.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 76) #include <linux/kernel.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 77) #include <linux/proc_fs.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 78) #include <linux/string.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 79) #include <linux/interrupt.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 80) #include <linux/ioport.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 81) #include <linux/slab.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 82) #include <linux/jiffies.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 83) #include <linux/dma-mapping.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 84) #include <asm/io.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 85)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 86) #include <scsi/scsi.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 87) #include <scsi/scsi_cmnd.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 88) #include <scsi/scsi_device.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 89) #include <scsi/scsi_host.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 90) #include <scsi/scsi_tcq.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 91)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 92) #include "initio.h"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 93)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 94) #define SENSE_SIZE 14
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 95)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 96) #define i91u_MAXQUEUE 2
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 97) #define i91u_REVID "Initio INI-9X00U/UW SCSI device driver; Revision: 1.04a"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 98)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 99) #ifdef DEBUG_i91u
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 100) static unsigned int i91u_debug = DEBUG_DEFAULT;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 101) #endif
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 102)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 103) static int initio_tag_enable = 1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 104)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 105) #ifdef DEBUG_i91u
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 106) static int setup_debug = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 107) #endif
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 108)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 109) static void i91uSCBPost(u8 * pHcb, u8 * pScb);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 110)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 111) #define DEBUG_INTERRUPT 0
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 112) #define DEBUG_QUEUE 0
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 113) #define DEBUG_STATE 0
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 114) #define INT_DISC 0
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 115)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 116) /*--- forward references ---*/
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 117) static struct scsi_ctrl_blk *initio_find_busy_scb(struct initio_host * host, u16 tarlun);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 118) static struct scsi_ctrl_blk *initio_find_done_scb(struct initio_host * host);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 119)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 120) static int tulip_main(struct initio_host * host);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 121)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 122) static int initio_next_state(struct initio_host * host);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 123) static int initio_state_1(struct initio_host * host);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 124) static int initio_state_2(struct initio_host * host);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 125) static int initio_state_3(struct initio_host * host);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 126) static int initio_state_4(struct initio_host * host);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 127) static int initio_state_5(struct initio_host * host);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 128) static int initio_state_6(struct initio_host * host);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 129) static int initio_state_7(struct initio_host * host);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 130) static int initio_xfer_data_in(struct initio_host * host);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 131) static int initio_xfer_data_out(struct initio_host * host);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 132) static int initio_xpad_in(struct initio_host * host);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 133) static int initio_xpad_out(struct initio_host * host);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 134) static int initio_status_msg(struct initio_host * host);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 135)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 136) static int initio_msgin(struct initio_host * host);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 137) static int initio_msgin_sync(struct initio_host * host);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 138) static int initio_msgin_accept(struct initio_host * host);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 139) static int initio_msgout_reject(struct initio_host * host);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 140) static int initio_msgin_extend(struct initio_host * host);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 141)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 142) static int initio_msgout_ide(struct initio_host * host);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 143) static int initio_msgout_abort_targ(struct initio_host * host);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 144) static int initio_msgout_abort_tag(struct initio_host * host);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 145)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 146) static int initio_bus_device_reset(struct initio_host * host);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 147) static void initio_select_atn(struct initio_host * host, struct scsi_ctrl_blk * scb);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 148) static void initio_select_atn3(struct initio_host * host, struct scsi_ctrl_blk * scb);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 149) static void initio_select_atn_stop(struct initio_host * host, struct scsi_ctrl_blk * scb);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 150) static int int_initio_busfree(struct initio_host * host);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 151) static int int_initio_scsi_rst(struct initio_host * host);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 152) static int int_initio_bad_seq(struct initio_host * host);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 153) static int int_initio_resel(struct initio_host * host);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 154) static int initio_sync_done(struct initio_host * host);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 155) static int wdtr_done(struct initio_host * host);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 156) static int wait_tulip(struct initio_host * host);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 157) static int initio_wait_done_disc(struct initio_host * host);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 158) static int initio_wait_disc(struct initio_host * host);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 159) static void tulip_scsi(struct initio_host * host);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 160) static int initio_post_scsi_rst(struct initio_host * host);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 161)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 162) static void initio_se2_ew_en(unsigned long base);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 163) static void initio_se2_ew_ds(unsigned long base);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 164) static int initio_se2_rd_all(unsigned long base);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 165) static void initio_se2_update_all(unsigned long base); /* setup default pattern */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 166) static void initio_read_eeprom(unsigned long base);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 167)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 168) /* ---- INTERNAL VARIABLES ---- */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 169)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 170) static NVRAM i91unvram;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 171) static NVRAM *i91unvramp;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 172)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 173) static u8 i91udftNvRam[64] =
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 174) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 175) /*----------- header -----------*/
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 176) 0x25, 0xc9, /* Signature */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 177) 0x40, /* Size */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 178) 0x01, /* Revision */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 179) /* -- Host Adapter Structure -- */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 180) 0x95, /* ModelByte0 */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 181) 0x00, /* ModelByte1 */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 182) 0x00, /* ModelInfo */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 183) 0x01, /* NumOfCh */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 184) NBC1_DEFAULT, /* BIOSConfig1 */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 185) 0, /* BIOSConfig2 */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 186) 0, /* HAConfig1 */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 187) 0, /* HAConfig2 */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 188) /* SCSI channel 0 and target Structure */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 189) 7, /* SCSIid */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 190) NCC1_DEFAULT, /* SCSIconfig1 */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 191) 0, /* SCSIconfig2 */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 192) 0x10, /* NumSCSItarget */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 193)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 194) NTC_DEFAULT, NTC_DEFAULT, NTC_DEFAULT, NTC_DEFAULT,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 195) NTC_DEFAULT, NTC_DEFAULT, NTC_DEFAULT, NTC_DEFAULT,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 196) NTC_DEFAULT, NTC_DEFAULT, NTC_DEFAULT, NTC_DEFAULT,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 197) NTC_DEFAULT, NTC_DEFAULT, NTC_DEFAULT, NTC_DEFAULT,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 198)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 199) /* SCSI channel 1 and target Structure */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 200) 7, /* SCSIid */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 201) NCC1_DEFAULT, /* SCSIconfig1 */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 202) 0, /* SCSIconfig2 */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 203) 0x10, /* NumSCSItarget */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 204)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 205) NTC_DEFAULT, NTC_DEFAULT, NTC_DEFAULT, NTC_DEFAULT,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 206) NTC_DEFAULT, NTC_DEFAULT, NTC_DEFAULT, NTC_DEFAULT,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 207) NTC_DEFAULT, NTC_DEFAULT, NTC_DEFAULT, NTC_DEFAULT,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 208) NTC_DEFAULT, NTC_DEFAULT, NTC_DEFAULT, NTC_DEFAULT,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 209) 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 210) 0, 0}; /* - CheckSum - */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 211)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 212)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 213) static u8 initio_rate_tbl[8] = /* fast 20 */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 214) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 215) /* nanosecond divide by 4 */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 216) 12, /* 50ns, 20M */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 217) 18, /* 75ns, 13.3M */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 218) 25, /* 100ns, 10M */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 219) 31, /* 125ns, 8M */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 220) 37, /* 150ns, 6.6M */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 221) 43, /* 175ns, 5.7M */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 222) 50, /* 200ns, 5M */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 223) 62 /* 250ns, 4M */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 224) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 225)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 226) static void initio_do_pause(unsigned amount)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 227) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 228) /* Pause for amount jiffies */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 229) unsigned long the_time = jiffies + amount;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 230)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 231) while (time_before_eq(jiffies, the_time))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 232) cpu_relax();
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 233) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 234)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 235) /*-- forward reference --*/
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 236)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 237) /******************************************************************
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 238) Input: instruction for Serial E2PROM
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 239)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 240) EX: se2_rd(0 call se2_instr() to send address and read command
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 241)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 242) StartBit OP_Code Address Data
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 243) --------- -------- ------------------ -------
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 244) 1 1 , 0 A5,A4,A3,A2,A1,A0 D15-D0
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 245)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 246) +-----------------------------------------------------
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 247) |
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 248) CS -----+
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 249) +--+ +--+ +--+ +--+ +--+
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 250) ^ | ^ | ^ | ^ | ^ |
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 251) | | | | | | | | | |
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 252) CLK -------+ +--+ +--+ +--+ +--+ +--
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 253) (leading edge trigger)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 254)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 255) +--1-----1--+
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 256) | SB OP | OP A5 A4
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 257) DI ----+ +--0------------------
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 258) (address and cmd sent to nvram)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 259)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 260) -------------------------------------------+
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 261) |
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 262) DO +---
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 263) (data sent from nvram)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 264)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 265)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 266) ******************************************************************/
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 267)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 268) /**
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 269) * initio_se2_instr - bitbang an instruction
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 270) * @base: Base of InitIO controller
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 271) * @instr: Instruction for serial E2PROM
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 272) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 273) * Bitbang an instruction out to the serial E2Prom
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 274) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 275)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 276) static void initio_se2_instr(unsigned long base, u8 instr)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 277) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 278) int i;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 279) u8 b;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 280)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 281) outb(SE2CS | SE2DO, base + TUL_NVRAM); /* cs+start bit */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 282) udelay(30);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 283) outb(SE2CS | SE2CLK | SE2DO, base + TUL_NVRAM); /* +CLK */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 284) udelay(30);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 285)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 286) for (i = 0; i < 8; i++) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 287) if (instr & 0x80)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 288) b = SE2CS | SE2DO; /* -CLK+dataBit */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 289) else
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 290) b = SE2CS; /* -CLK */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 291) outb(b, base + TUL_NVRAM);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 292) udelay(30);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 293) outb(b | SE2CLK, base + TUL_NVRAM); /* +CLK */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 294) udelay(30);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 295) instr <<= 1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 296) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 297) outb(SE2CS, base + TUL_NVRAM); /* -CLK */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 298) udelay(30);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 299) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 300)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 301)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 302) /**
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 303) * initio_se2_ew_en - Enable erase/write
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 304) * @base: Base address of InitIO controller
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 305) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 306) * Enable erase/write state of serial EEPROM
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 307) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 308) void initio_se2_ew_en(unsigned long base)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 309) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 310) initio_se2_instr(base, 0x30); /* EWEN */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 311) outb(0, base + TUL_NVRAM); /* -CS */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 312) udelay(30);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 313) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 314)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 315)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 316) /**
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 317) * initio_se2_ew_ds - Disable erase/write
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 318) * @base: Base address of InitIO controller
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 319) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 320) * Disable erase/write state of serial EEPROM
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 321) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 322) void initio_se2_ew_ds(unsigned long base)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 323) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 324) initio_se2_instr(base, 0); /* EWDS */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 325) outb(0, base + TUL_NVRAM); /* -CS */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 326) udelay(30);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 327) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 328)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 329)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 330) /**
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 331) * initio_se2_rd - read E2PROM word
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 332) * @base: Base of InitIO controller
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 333) * @addr: Address of word in E2PROM
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 334) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 335) * Read a word from the NV E2PROM device
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 336) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 337) static u16 initio_se2_rd(unsigned long base, u8 addr)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 338) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 339) u8 instr, rb;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 340) u16 val = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 341) int i;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 342)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 343) instr = (u8) (addr | 0x80);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 344) initio_se2_instr(base, instr); /* READ INSTR */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 345)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 346) for (i = 15; i >= 0; i--) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 347) outb(SE2CS | SE2CLK, base + TUL_NVRAM); /* +CLK */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 348) udelay(30);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 349) outb(SE2CS, base + TUL_NVRAM); /* -CLK */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 350)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 351) /* sample data after the following edge of clock */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 352) rb = inb(base + TUL_NVRAM);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 353) rb &= SE2DI;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 354) val += (rb << i);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 355) udelay(30); /* 6/20/95 */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 356) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 357)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 358) outb(0, base + TUL_NVRAM); /* no chip select */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 359) udelay(30);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 360) return val;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 361) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 362)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 363) /**
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 364) * initio_se2_wr - read E2PROM word
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 365) * @base: Base of InitIO controller
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 366) * @addr: Address of word in E2PROM
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 367) * @val: Value to write
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 368) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 369) * Write a word to the NV E2PROM device. Used when recovering from
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 370) * a problem with the NV.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 371) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 372) static void initio_se2_wr(unsigned long base, u8 addr, u16 val)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 373) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 374) u8 rb;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 375) u8 instr;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 376) int i;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 377)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 378) instr = (u8) (addr | 0x40);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 379) initio_se2_instr(base, instr); /* WRITE INSTR */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 380) for (i = 15; i >= 0; i--) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 381) if (val & 0x8000)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 382) outb(SE2CS | SE2DO, base + TUL_NVRAM); /* -CLK+dataBit 1 */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 383) else
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 384) outb(SE2CS, base + TUL_NVRAM); /* -CLK+dataBit 0 */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 385) udelay(30);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 386) outb(SE2CS | SE2CLK, base + TUL_NVRAM); /* +CLK */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 387) udelay(30);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 388) val <<= 1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 389) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 390) outb(SE2CS, base + TUL_NVRAM); /* -CLK */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 391) udelay(30);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 392) outb(0, base + TUL_NVRAM); /* -CS */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 393) udelay(30);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 394)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 395) outb(SE2CS, base + TUL_NVRAM); /* +CS */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 396) udelay(30);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 397)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 398) for (;;) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 399) outb(SE2CS | SE2CLK, base + TUL_NVRAM); /* +CLK */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 400) udelay(30);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 401) outb(SE2CS, base + TUL_NVRAM); /* -CLK */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 402) udelay(30);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 403) if ((rb = inb(base + TUL_NVRAM)) & SE2DI)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 404) break; /* write complete */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 405) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 406) outb(0, base + TUL_NVRAM); /* -CS */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 407) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 408)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 409) /**
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 410) * initio_se2_rd_all - read hostadapter NV configuration
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 411) * @base: Base address of InitIO controller
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 412) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 413) * Reads the E2PROM data into main memory. Ensures that the checksum
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 414) * and header marker are valid. Returns 1 on success -1 on error.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 415) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 416)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 417) static int initio_se2_rd_all(unsigned long base)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 418) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 419) int i;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 420) u16 chksum = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 421) u16 *np;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 422)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 423) i91unvramp = &i91unvram;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 424) np = (u16 *) i91unvramp;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 425) for (i = 0; i < 32; i++)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 426) *np++ = initio_se2_rd(base, i);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 427)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 428) /* Is signature "ini" ok ? */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 429) if (i91unvramp->NVM_Signature != INI_SIGNATURE)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 430) return -1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 431) /* Is ckecksum ok ? */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 432) np = (u16 *) i91unvramp;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 433) for (i = 0; i < 31; i++)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 434) chksum += *np++;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 435) if (i91unvramp->NVM_CheckSum != chksum)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 436) return -1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 437) return 1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 438) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 439)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 440) /**
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 441) * initio_se2_update_all - Update E2PROM
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 442) * @base: Base of InitIO controller
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 443) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 444) * Update the E2PROM by wrting any changes into the E2PROM
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 445) * chip, rewriting the checksum.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 446) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 447) static void initio_se2_update_all(unsigned long base)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 448) { /* setup default pattern */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 449) int i;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 450) u16 chksum = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 451) u16 *np, *np1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 452)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 453) i91unvramp = &i91unvram;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 454) /* Calculate checksum first */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 455) np = (u16 *) i91udftNvRam;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 456) for (i = 0; i < 31; i++)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 457) chksum += *np++;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 458) *np = chksum;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 459) initio_se2_ew_en(base); /* Enable write */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 460)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 461) np = (u16 *) i91udftNvRam;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 462) np1 = (u16 *) i91unvramp;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 463) for (i = 0; i < 32; i++, np++, np1++) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 464) if (*np != *np1)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 465) initio_se2_wr(base, i, *np);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 466) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 467) initio_se2_ew_ds(base); /* Disable write */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 468) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 469)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 470) /**
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 471) * initio_read_eeprom - Retrieve configuration
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 472) * @base: Base of InitIO Host Adapter
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 473) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 474) * Retrieve the host adapter configuration data from E2Prom. If the
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 475) * data is invalid then the defaults are used and are also restored
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 476) * into the E2PROM. This forms the access point for the SCSI driver
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 477) * into the E2PROM layer, the other functions for the E2PROM are all
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 478) * internal use.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 479) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 480) * Must be called single threaded, uses a shared global area.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 481) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 482)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 483) static void initio_read_eeprom(unsigned long base)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 484) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 485) u8 gctrl;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 486)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 487) i91unvramp = &i91unvram;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 488) /* Enable EEProm programming */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 489) gctrl = inb(base + TUL_GCTRL);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 490) outb(gctrl | TUL_GCTRL_EEPROM_BIT, base + TUL_GCTRL);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 491) if (initio_se2_rd_all(base) != 1) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 492) initio_se2_update_all(base); /* setup default pattern */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 493) initio_se2_rd_all(base); /* load again */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 494) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 495) /* Disable EEProm programming */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 496) gctrl = inb(base + TUL_GCTRL);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 497) outb(gctrl & ~TUL_GCTRL_EEPROM_BIT, base + TUL_GCTRL);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 498) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 499)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 500) /**
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 501) * initio_stop_bm - stop bus master
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 502) * @host: InitIO we are stopping
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 503) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 504) * Stop any pending DMA operation, aborting the DMA if necessary
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 505) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 506)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 507) static void initio_stop_bm(struct initio_host * host)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 508) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 509)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 510) if (inb(host->addr + TUL_XStatus) & XPEND) { /* if DMA xfer is pending, abort DMA xfer */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 511) outb(TAX_X_ABT | TAX_X_CLR_FIFO, host->addr + TUL_XCmd);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 512) /* wait Abort DMA xfer done */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 513) while ((inb(host->addr + TUL_Int) & XABT) == 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 514) cpu_relax();
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 515) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 516) outb(TSC_FLUSH_FIFO, host->addr + TUL_SCtrl0);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 517) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 518)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 519) /**
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 520) * initio_reset_scsi - Reset SCSI host controller
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 521) * @host: InitIO host to reset
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 522) * @seconds: Recovery time
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 523) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 524) * Perform a full reset of the SCSI subsystem.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 525) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 526)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 527) static int initio_reset_scsi(struct initio_host * host, int seconds)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 528) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 529) outb(TSC_RST_BUS, host->addr + TUL_SCtrl0);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 530)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 531) while (!((host->jsint = inb(host->addr + TUL_SInt)) & TSS_SCSIRST_INT))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 532) cpu_relax();
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 533)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 534) /* reset tulip chip */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 535) outb(0, host->addr + TUL_SSignal);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 536)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 537) /* Stall for a while, wait for target's firmware ready,make it 2 sec ! */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 538) /* SONY 5200 tape drive won't work if only stall for 1 sec */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 539) /* FIXME: this is a very long busy wait right now */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 540) initio_do_pause(seconds * HZ);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 541)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 542) inb(host->addr + TUL_SInt);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 543) return SCSI_RESET_SUCCESS;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 544) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 545)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 546) /**
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 547) * initio_init - set up an InitIO host adapter
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 548) * @host: InitIO host adapter
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 549) * @num_scbs: Number of SCBS
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 550) * @bios_addr: BIOS address
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 551) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 552) * Set up the host adapter and devices according to the configuration
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 553) * retrieved from the E2PROM.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 554) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 555) * Locking: Calls E2PROM layer code which is not re-enterable so must
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 556) * run single threaded for now.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 557) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 558)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 559) static void initio_init(struct initio_host * host, u8 *bios_addr)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 560) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 561) int i;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 562) u8 *flags;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 563) u8 *heads;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 564)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 565) /* Get E2Prom configuration */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 566) initio_read_eeprom(host->addr);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 567) if (i91unvramp->NVM_SCSIInfo[0].NVM_NumOfTarg == 8)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 568) host->max_tar = 8;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 569) else
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 570) host->max_tar = 16;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 571)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 572) host->config = i91unvramp->NVM_SCSIInfo[0].NVM_ChConfig1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 573)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 574) host->scsi_id = i91unvramp->NVM_SCSIInfo[0].NVM_ChSCSIID;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 575) host->idmask = ~(1 << host->scsi_id);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 576)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 577) #ifdef CHK_PARITY
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 578) /* Enable parity error response */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 579) outb(inb(host->addr + TUL_PCMD) | 0x40, host->addr + TUL_PCMD);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 580) #endif
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 581)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 582) /* Mask all the interrupt */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 583) outb(0x1F, host->addr + TUL_Mask);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 584)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 585) initio_stop_bm(host);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 586) /* --- Initialize the tulip --- */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 587) outb(TSC_RST_CHIP, host->addr + TUL_SCtrl0);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 588)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 589) /* program HBA's SCSI ID */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 590) outb(host->scsi_id << 4, host->addr + TUL_SScsiId);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 591)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 592) /* Enable Initiator Mode ,phase latch,alternate sync period mode,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 593) disable SCSI reset */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 594) if (host->config & HCC_EN_PAR)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 595) host->sconf1 = (TSC_INITDEFAULT | TSC_EN_SCSI_PAR);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 596) else
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 597) host->sconf1 = (TSC_INITDEFAULT);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 598) outb(host->sconf1, host->addr + TUL_SConfig);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 599)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 600) /* Enable HW reselect */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 601) outb(TSC_HW_RESELECT, host->addr + TUL_SCtrl1);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 602)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 603) outb(0, host->addr + TUL_SPeriod);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 604)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 605) /* selection time out = 250 ms */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 606) outb(153, host->addr + TUL_STimeOut);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 607)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 608) /* Enable SCSI terminator */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 609) outb((host->config & (HCC_ACT_TERM1 | HCC_ACT_TERM2)),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 610) host->addr + TUL_XCtrl);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 611) outb(((host->config & HCC_AUTO_TERM) >> 4) |
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 612) (inb(host->addr + TUL_GCTRL1) & 0xFE),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 613) host->addr + TUL_GCTRL1);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 614)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 615) for (i = 0,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 616) flags = & (i91unvramp->NVM_SCSIInfo[0].NVM_Targ0Config),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 617) heads = bios_addr + 0x180;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 618) i < host->max_tar;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 619) i++, flags++) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 620) host->targets[i].flags = *flags & ~(TCF_SYNC_DONE | TCF_WDTR_DONE);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 621) if (host->targets[i].flags & TCF_EN_255)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 622) host->targets[i].drv_flags = TCF_DRV_255_63;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 623) else
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 624) host->targets[i].drv_flags = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 625) host->targets[i].js_period = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 626) host->targets[i].sconfig0 = host->sconf1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 627) host->targets[i].heads = *heads++;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 628) if (host->targets[i].heads == 255)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 629) host->targets[i].drv_flags = TCF_DRV_255_63;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 630) else
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 631) host->targets[i].drv_flags = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 632) host->targets[i].sectors = *heads++;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 633) host->targets[i].flags &= ~TCF_BUSY;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 634) host->act_tags[i] = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 635) host->max_tags[i] = 0xFF;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 636) } /* for */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 637) printk("i91u: PCI Base=0x%04X, IRQ=%d, BIOS=0x%04X0, SCSI ID=%d\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 638) host->addr, host->pci_dev->irq,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 639) host->bios_addr, host->scsi_id);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 640) /* Reset SCSI Bus */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 641) if (host->config & HCC_SCSI_RESET) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 642) printk(KERN_INFO "i91u: Reset SCSI Bus ... \n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 643) initio_reset_scsi(host, 10);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 644) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 645) outb(0x17, host->addr + TUL_SCFG1);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 646) outb(0xE9, host->addr + TUL_SIntEnable);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 647) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 648)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 649) /**
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 650) * initio_alloc_scb - Allocate an SCB
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 651) * @host: InitIO host we are allocating for
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 652) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 653) * Walk the SCB list for the controller and allocate a free SCB if
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 654) * one exists.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 655) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 656) static struct scsi_ctrl_blk *initio_alloc_scb(struct initio_host *host)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 657) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 658) struct scsi_ctrl_blk *scb;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 659) unsigned long flags;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 660)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 661) spin_lock_irqsave(&host->avail_lock, flags);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 662) if ((scb = host->first_avail) != NULL) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 663) #if DEBUG_QUEUE
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 664) printk("find scb at %p\n", scb);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 665) #endif
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 666) if ((host->first_avail = scb->next) == NULL)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 667) host->last_avail = NULL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 668) scb->next = NULL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 669) scb->status = SCB_RENT;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 670) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 671) spin_unlock_irqrestore(&host->avail_lock, flags);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 672) return scb;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 673) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 674)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 675) /**
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 676) * initio_release_scb - Release an SCB
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 677) * @host: InitIO host that owns the SCB
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 678) * @cmnd: SCB command block being returned
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 679) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 680) * Return an allocated SCB to the host free list
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 681) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 682)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 683) static void initio_release_scb(struct initio_host * host, struct scsi_ctrl_blk * cmnd)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 684) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 685) unsigned long flags;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 686)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 687) #if DEBUG_QUEUE
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 688) printk("Release SCB %p; ", cmnd);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 689) #endif
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 690) spin_lock_irqsave(&(host->avail_lock), flags);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 691) cmnd->srb = NULL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 692) cmnd->status = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 693) cmnd->next = NULL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 694) if (host->last_avail != NULL) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 695) host->last_avail->next = cmnd;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 696) host->last_avail = cmnd;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 697) } else {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 698) host->first_avail = cmnd;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 699) host->last_avail = cmnd;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 700) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 701) spin_unlock_irqrestore(&(host->avail_lock), flags);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 702) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 703)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 704) /***************************************************************************/
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 705) static void initio_append_pend_scb(struct initio_host * host, struct scsi_ctrl_blk * scbp)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 706) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 707)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 708) #if DEBUG_QUEUE
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 709) printk("Append pend SCB %p; ", scbp);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 710) #endif
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 711) scbp->status = SCB_PEND;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 712) scbp->next = NULL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 713) if (host->last_pending != NULL) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 714) host->last_pending->next = scbp;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 715) host->last_pending = scbp;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 716) } else {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 717) host->first_pending = scbp;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 718) host->last_pending = scbp;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 719) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 720) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 721)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 722) /***************************************************************************/
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 723) static void initio_push_pend_scb(struct initio_host * host, struct scsi_ctrl_blk * scbp)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 724) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 725)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 726) #if DEBUG_QUEUE
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 727) printk("Push pend SCB %p; ", scbp);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 728) #endif
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 729) scbp->status = SCB_PEND;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 730) if ((scbp->next = host->first_pending) != NULL) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 731) host->first_pending = scbp;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 732) } else {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 733) host->first_pending = scbp;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 734) host->last_pending = scbp;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 735) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 736) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 737)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 738) static struct scsi_ctrl_blk *initio_find_first_pend_scb(struct initio_host * host)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 739) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 740) struct scsi_ctrl_blk *first;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 741)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 742)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 743) first = host->first_pending;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 744) while (first != NULL) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 745) if (first->opcode != ExecSCSI)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 746) return first;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 747) if (first->tagmsg == 0) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 748) if ((host->act_tags[first->target] == 0) &&
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 749) !(host->targets[first->target].flags & TCF_BUSY))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 750) return first;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 751) } else {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 752) if ((host->act_tags[first->target] >=
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 753) host->max_tags[first->target]) |
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 754) (host->targets[first->target].flags & TCF_BUSY)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 755) first = first->next;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 756) continue;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 757) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 758) return first;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 759) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 760) first = first->next;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 761) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 762) return first;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 763) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 764)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 765) static void initio_unlink_pend_scb(struct initio_host * host, struct scsi_ctrl_blk * scb)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 766) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 767) struct scsi_ctrl_blk *tmp, *prev;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 768)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 769) #if DEBUG_QUEUE
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 770) printk("unlink pend SCB %p; ", scb);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 771) #endif
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 772)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 773) prev = tmp = host->first_pending;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 774) while (tmp != NULL) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 775) if (scb == tmp) { /* Unlink this SCB */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 776) if (tmp == host->first_pending) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 777) if ((host->first_pending = tmp->next) == NULL)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 778) host->last_pending = NULL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 779) } else {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 780) prev->next = tmp->next;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 781) if (tmp == host->last_pending)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 782) host->last_pending = prev;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 783) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 784) tmp->next = NULL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 785) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 786) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 787) prev = tmp;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 788) tmp = tmp->next;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 789) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 790) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 791)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 792) static void initio_append_busy_scb(struct initio_host * host, struct scsi_ctrl_blk * scbp)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 793) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 794)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 795) #if DEBUG_QUEUE
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 796) printk("append busy SCB %p; ", scbp);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 797) #endif
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 798) if (scbp->tagmsg)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 799) host->act_tags[scbp->target]++;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 800) else
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 801) host->targets[scbp->target].flags |= TCF_BUSY;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 802) scbp->status = SCB_BUSY;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 803) scbp->next = NULL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 804) if (host->last_busy != NULL) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 805) host->last_busy->next = scbp;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 806) host->last_busy = scbp;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 807) } else {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 808) host->first_busy = scbp;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 809) host->last_busy = scbp;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 810) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 811) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 812)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 813) /***************************************************************************/
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 814) static struct scsi_ctrl_blk *initio_pop_busy_scb(struct initio_host * host)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 815) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 816) struct scsi_ctrl_blk *tmp;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 817)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 818)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 819) if ((tmp = host->first_busy) != NULL) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 820) if ((host->first_busy = tmp->next) == NULL)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 821) host->last_busy = NULL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 822) tmp->next = NULL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 823) if (tmp->tagmsg)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 824) host->act_tags[tmp->target]--;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 825) else
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 826) host->targets[tmp->target].flags &= ~TCF_BUSY;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 827) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 828) #if DEBUG_QUEUE
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 829) printk("Pop busy SCB %p; ", tmp);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 830) #endif
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 831) return tmp;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 832) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 833)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 834) /***************************************************************************/
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 835) static void initio_unlink_busy_scb(struct initio_host * host, struct scsi_ctrl_blk * scb)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 836) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 837) struct scsi_ctrl_blk *tmp, *prev;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 838)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 839) #if DEBUG_QUEUE
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 840) printk("unlink busy SCB %p; ", scb);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 841) #endif
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 842)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 843) prev = tmp = host->first_busy;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 844) while (tmp != NULL) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 845) if (scb == tmp) { /* Unlink this SCB */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 846) if (tmp == host->first_busy) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 847) if ((host->first_busy = tmp->next) == NULL)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 848) host->last_busy = NULL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 849) } else {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 850) prev->next = tmp->next;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 851) if (tmp == host->last_busy)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 852) host->last_busy = prev;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 853) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 854) tmp->next = NULL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 855) if (tmp->tagmsg)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 856) host->act_tags[tmp->target]--;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 857) else
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 858) host->targets[tmp->target].flags &= ~TCF_BUSY;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 859) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 860) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 861) prev = tmp;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 862) tmp = tmp->next;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 863) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 864) return;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 865) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 866)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 867) struct scsi_ctrl_blk *initio_find_busy_scb(struct initio_host * host, u16 tarlun)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 868) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 869) struct scsi_ctrl_blk *tmp, *prev;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 870) u16 scbp_tarlun;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 871)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 872)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 873) prev = tmp = host->first_busy;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 874) while (tmp != NULL) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 875) scbp_tarlun = (tmp->lun << 8) | (tmp->target);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 876) if (scbp_tarlun == tarlun) { /* Unlink this SCB */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 877) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 878) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 879) prev = tmp;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 880) tmp = tmp->next;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 881) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 882) #if DEBUG_QUEUE
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 883) printk("find busy SCB %p; ", tmp);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 884) #endif
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 885) return tmp;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 886) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 887)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 888) static void initio_append_done_scb(struct initio_host * host, struct scsi_ctrl_blk * scbp)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 889) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 890) #if DEBUG_QUEUE
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 891) printk("append done SCB %p; ", scbp);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 892) #endif
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 893)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 894) scbp->status = SCB_DONE;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 895) scbp->next = NULL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 896) if (host->last_done != NULL) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 897) host->last_done->next = scbp;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 898) host->last_done = scbp;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 899) } else {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 900) host->first_done = scbp;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 901) host->last_done = scbp;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 902) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 903) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 904)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 905) struct scsi_ctrl_blk *initio_find_done_scb(struct initio_host * host)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 906) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 907) struct scsi_ctrl_blk *tmp;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 908)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 909) if ((tmp = host->first_done) != NULL) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 910) if ((host->first_done = tmp->next) == NULL)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 911) host->last_done = NULL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 912) tmp->next = NULL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 913) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 914) #if DEBUG_QUEUE
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 915) printk("find done SCB %p; ",tmp);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 916) #endif
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 917) return tmp;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 918) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 919)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 920) static int initio_abort_srb(struct initio_host * host, struct scsi_cmnd *srbp)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 921) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 922) unsigned long flags;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 923) struct scsi_ctrl_blk *tmp, *prev;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 924)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 925) spin_lock_irqsave(&host->semaph_lock, flags);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 926)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 927) if ((host->semaph == 0) && (host->active == NULL)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 928) /* disable Jasmin SCSI Int */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 929) outb(0x1F, host->addr + TUL_Mask);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 930) spin_unlock_irqrestore(&host->semaph_lock, flags);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 931) /* FIXME: synchronize_irq needed ? */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 932) tulip_main(host);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 933) spin_lock_irqsave(&host->semaph_lock, flags);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 934) host->semaph = 1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 935) outb(0x0F, host->addr + TUL_Mask);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 936) spin_unlock_irqrestore(&host->semaph_lock, flags);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 937) return SCSI_ABORT_SNOOZE;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 938) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 939) prev = tmp = host->first_pending; /* Check Pend queue */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 940) while (tmp != NULL) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 941) /* 07/27/98 */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 942) if (tmp->srb == srbp) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 943) if (tmp == host->active) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 944) spin_unlock_irqrestore(&host->semaph_lock, flags);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 945) return SCSI_ABORT_BUSY;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 946) } else if (tmp == host->first_pending) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 947) if ((host->first_pending = tmp->next) == NULL)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 948) host->last_pending = NULL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 949) } else {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 950) prev->next = tmp->next;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 951) if (tmp == host->last_pending)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 952) host->last_pending = prev;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 953) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 954) tmp->hastat = HOST_ABORTED;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 955) tmp->flags |= SCF_DONE;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 956) if (tmp->flags & SCF_POST)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 957) (*tmp->post) ((u8 *) host, (u8 *) tmp);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 958) spin_unlock_irqrestore(&host->semaph_lock, flags);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 959) return SCSI_ABORT_SUCCESS;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 960) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 961) prev = tmp;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 962) tmp = tmp->next;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 963) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 964)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 965) prev = tmp = host->first_busy; /* Check Busy queue */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 966) while (tmp != NULL) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 967) if (tmp->srb == srbp) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 968) if (tmp == host->active) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 969) spin_unlock_irqrestore(&host->semaph_lock, flags);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 970) return SCSI_ABORT_BUSY;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 971) } else if (tmp->tagmsg == 0) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 972) spin_unlock_irqrestore(&host->semaph_lock, flags);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 973) return SCSI_ABORT_BUSY;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 974) } else {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 975) host->act_tags[tmp->target]--;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 976) if (tmp == host->first_busy) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 977) if ((host->first_busy = tmp->next) == NULL)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 978) host->last_busy = NULL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 979) } else {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 980) prev->next = tmp->next;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 981) if (tmp == host->last_busy)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 982) host->last_busy = prev;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 983) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 984) tmp->next = NULL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 985)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 986)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 987) tmp->hastat = HOST_ABORTED;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 988) tmp->flags |= SCF_DONE;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 989) if (tmp->flags & SCF_POST)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 990) (*tmp->post) ((u8 *) host, (u8 *) tmp);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 991) spin_unlock_irqrestore(&host->semaph_lock, flags);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 992) return SCSI_ABORT_SUCCESS;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 993) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 994) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 995) prev = tmp;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 996) tmp = tmp->next;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 997) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 998) spin_unlock_irqrestore(&host->semaph_lock, flags);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 999) return SCSI_ABORT_NOT_RUNNING;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1000) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1001)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1002) /***************************************************************************/
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1003) static int initio_bad_seq(struct initio_host * host)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1004) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1005) struct scsi_ctrl_blk *scb;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1006)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1007) printk("initio_bad_seg c=%d\n", host->index);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1008)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1009) if ((scb = host->active) != NULL) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1010) initio_unlink_busy_scb(host, scb);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1011) scb->hastat = HOST_BAD_PHAS;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1012) scb->tastat = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1013) initio_append_done_scb(host, scb);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1014) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1015) initio_stop_bm(host);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1016) initio_reset_scsi(host, 8); /* 7/29/98 */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1017) return initio_post_scsi_rst(host);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1018) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1019)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1020)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1021) /************************************************************************/
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1022) static void initio_exec_scb(struct initio_host * host, struct scsi_ctrl_blk * scb)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1023) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1024) unsigned long flags;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1025)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1026) scb->mode = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1027)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1028) scb->sgidx = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1029) scb->sgmax = scb->sglen;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1030)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1031) spin_lock_irqsave(&host->semaph_lock, flags);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1032)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1033) initio_append_pend_scb(host, scb); /* Append this SCB to Pending queue */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1034)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1035) /* VVVVV 07/21/98 */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1036) if (host->semaph == 1) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1037) /* Disable Jasmin SCSI Int */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1038) outb(0x1F, host->addr + TUL_Mask);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1039) host->semaph = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1040) spin_unlock_irqrestore(&host->semaph_lock, flags);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1041)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1042) tulip_main(host);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1043)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1044) spin_lock_irqsave(&host->semaph_lock, flags);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1045) host->semaph = 1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1046) outb(0x0F, host->addr + TUL_Mask);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1047) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1048) spin_unlock_irqrestore(&host->semaph_lock, flags);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1049) return;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1050) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1051)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1052) /***************************************************************************/
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1053) static int initio_isr(struct initio_host * host)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1054) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1055) if (inb(host->addr + TUL_Int) & TSS_INT_PENDING) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1056) if (host->semaph == 1) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1057) outb(0x1F, host->addr + TUL_Mask);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1058) /* Disable Tulip SCSI Int */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1059) host->semaph = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1060)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1061) tulip_main(host);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1062)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1063) host->semaph = 1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1064) outb(0x0F, host->addr + TUL_Mask);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1065) return 1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1066) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1067) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1068) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1069) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1070)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1071) static int tulip_main(struct initio_host * host)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1072) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1073) struct scsi_ctrl_blk *scb;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1074)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1075) for (;;) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1076) tulip_scsi(host); /* Call tulip_scsi */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1077)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1078) /* Walk the list of completed SCBs */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1079) while ((scb = initio_find_done_scb(host)) != NULL) { /* find done entry */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1080) if (scb->tastat == INI_QUEUE_FULL) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1081) host->max_tags[scb->target] =
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1082) host->act_tags[scb->target] - 1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1083) scb->tastat = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1084) initio_append_pend_scb(host, scb);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1085) continue;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1086) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1087) if (!(scb->mode & SCM_RSENS)) { /* not in auto req. sense mode */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1088) if (scb->tastat == 2) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1089)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1090) /* clr sync. nego flag */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1091)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1092) if (scb->flags & SCF_SENSE) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1093) u8 len;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1094) len = scb->senselen;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1095) if (len == 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1096) len = 1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1097) scb->buflen = scb->senselen;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1098) scb->bufptr = scb->senseptr;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1099) scb->flags &= ~(SCF_SG | SCF_DIR); /* for xfer_data_in */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1100) /* so, we won't report wrong direction in xfer_data_in,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1101) and won't report HOST_DO_DU in state_6 */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1102) scb->mode = SCM_RSENS;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1103) scb->ident &= 0xBF; /* Disable Disconnect */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1104) scb->tagmsg = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1105) scb->tastat = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1106) scb->cdblen = 6;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1107) scb->cdb[0] = SCSICMD_RequestSense;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1108) scb->cdb[1] = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1109) scb->cdb[2] = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1110) scb->cdb[3] = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1111) scb->cdb[4] = len;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1112) scb->cdb[5] = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1113) initio_push_pend_scb(host, scb);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1114) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1115) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1116) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1117) } else { /* in request sense mode */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1118)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1119) if (scb->tastat == 2) { /* check contition status again after sending
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1120) requset sense cmd 0x3 */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1121) scb->hastat = HOST_BAD_PHAS;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1122) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1123) scb->tastat = 2;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1124) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1125) scb->flags |= SCF_DONE;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1126) if (scb->flags & SCF_POST) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1127) /* FIXME: only one post method and lose casts */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1128) (*scb->post) ((u8 *) host, (u8 *) scb);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1129) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1130) } /* while */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1131) /* find_active: */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1132) if (inb(host->addr + TUL_SStatus0) & TSS_INT_PENDING)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1133) continue;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1134) if (host->active) /* return to OS and wait for xfer_done_ISR/Selected_ISR */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1135) return 1; /* return to OS, enable interrupt */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1136) /* Check pending SCB */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1137) if (initio_find_first_pend_scb(host) == NULL)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1138) return 1; /* return to OS, enable interrupt */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1139) } /* End of for loop */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1140) /* statement won't reach here */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1141) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1142)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1143) static void tulip_scsi(struct initio_host * host)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1144) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1145) struct scsi_ctrl_blk *scb;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1146) struct target_control *active_tc;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1147)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1148) /* make sure to service interrupt asap */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1149) if ((host->jsstatus0 = inb(host->addr + TUL_SStatus0)) & TSS_INT_PENDING) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1150) host->phase = host->jsstatus0 & TSS_PH_MASK;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1151) host->jsstatus1 = inb(host->addr + TUL_SStatus1);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1152) host->jsint = inb(host->addr + TUL_SInt);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1153) if (host->jsint & TSS_SCSIRST_INT) { /* SCSI bus reset detected */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1154) int_initio_scsi_rst(host);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1155) return;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1156) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1157) if (host->jsint & TSS_RESEL_INT) { /* if selected/reselected interrupt */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1158) if (int_initio_resel(host) == 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1159) initio_next_state(host);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1160) return;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1161) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1162) if (host->jsint & TSS_SEL_TIMEOUT) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1163) int_initio_busfree(host);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1164) return;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1165) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1166) if (host->jsint & TSS_DISC_INT) { /* BUS disconnection */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1167) int_initio_busfree(host); /* unexpected bus free or sel timeout */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1168) return;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1169) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1170) if (host->jsint & (TSS_FUNC_COMP | TSS_BUS_SERV)) { /* func complete or Bus service */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1171) if ((scb = host->active) != NULL)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1172) initio_next_state(host);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1173) return;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1174) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1175) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1176) if (host->active != NULL)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1177) return;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1178)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1179) if ((scb = initio_find_first_pend_scb(host)) == NULL)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1180) return;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1181)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1182) /* program HBA's SCSI ID & target SCSI ID */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1183) outb((host->scsi_id << 4) | (scb->target & 0x0F),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1184) host->addr + TUL_SScsiId);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1185) if (scb->opcode == ExecSCSI) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1186) active_tc = &host->targets[scb->target];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1187)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1188) if (scb->tagmsg)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1189) active_tc->drv_flags |= TCF_DRV_EN_TAG;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1190) else
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1191) active_tc->drv_flags &= ~TCF_DRV_EN_TAG;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1192)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1193) outb(active_tc->js_period, host->addr + TUL_SPeriod);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1194) if ((active_tc->flags & (TCF_WDTR_DONE | TCF_NO_WDTR)) == 0) { /* do wdtr negotiation */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1195) initio_select_atn_stop(host, scb);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1196) } else {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1197) if ((active_tc->flags & (TCF_SYNC_DONE | TCF_NO_SYNC_NEGO)) == 0) { /* do sync negotiation */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1198) initio_select_atn_stop(host, scb);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1199) } else {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1200) if (scb->tagmsg)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1201) initio_select_atn3(host, scb);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1202) else
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1203) initio_select_atn(host, scb);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1204) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1205) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1206) if (scb->flags & SCF_POLL) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1207) while (wait_tulip(host) != -1) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1208) if (initio_next_state(host) == -1)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1209) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1210) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1211) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1212) } else if (scb->opcode == BusDevRst) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1213) initio_select_atn_stop(host, scb);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1214) scb->next_state = 8;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1215) if (scb->flags & SCF_POLL) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1216) while (wait_tulip(host) != -1) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1217) if (initio_next_state(host) == -1)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1218) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1219) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1220) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1221) } else if (scb->opcode == AbortCmd) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1222) if (initio_abort_srb(host, scb->srb) != 0) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1223) initio_unlink_pend_scb(host, scb);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1224) initio_release_scb(host, scb);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1225) } else {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1226) scb->opcode = BusDevRst;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1227) initio_select_atn_stop(host, scb);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1228) scb->next_state = 8;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1229) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1230) } else {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1231) initio_unlink_pend_scb(host, scb);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1232) scb->hastat = 0x16; /* bad command */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1233) initio_append_done_scb(host, scb);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1234) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1235) return;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1236) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1237)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1238) /**
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1239) * initio_next_state - Next SCSI state
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1240) * @host: InitIO host we are processing
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1241) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1242) * Progress the active command block along the state machine
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1243) * until we hit a state which we must wait for activity to occur.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1244) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1245) * Returns zero or a negative code.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1246) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1247)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1248) static int initio_next_state(struct initio_host * host)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1249) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1250) int next;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1251)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1252) next = host->active->next_state;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1253) for (;;) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1254) switch (next) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1255) case 1:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1256) next = initio_state_1(host);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1257) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1258) case 2:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1259) next = initio_state_2(host);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1260) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1261) case 3:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1262) next = initio_state_3(host);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1263) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1264) case 4:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1265) next = initio_state_4(host);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1266) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1267) case 5:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1268) next = initio_state_5(host);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1269) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1270) case 6:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1271) next = initio_state_6(host);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1272) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1273) case 7:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1274) next = initio_state_7(host);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1275) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1276) case 8:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1277) return initio_bus_device_reset(host);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1278) default:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1279) return initio_bad_seq(host);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1280) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1281) if (next <= 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1282) return next;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1283) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1284) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1285)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1286)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1287) /**
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1288) * initio_state_1 - SCSI state machine
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1289) * @host: InitIO host we are controlling
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1290) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1291) * Perform SCSI state processing for Select/Attention/Stop
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1292) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1293)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1294) static int initio_state_1(struct initio_host * host)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1295) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1296) struct scsi_ctrl_blk *scb = host->active;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1297) struct target_control *active_tc = host->active_tc;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1298) #if DEBUG_STATE
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1299) printk("-s1-");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1300) #endif
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1301)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1302) /* Move the SCB from pending to busy */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1303) initio_unlink_pend_scb(host, scb);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1304) initio_append_busy_scb(host, scb);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1305)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1306) outb(active_tc->sconfig0, host->addr + TUL_SConfig );
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1307) /* ATN on */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1308) if (host->phase == MSG_OUT) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1309) outb(TSC_EN_BUS_IN | TSC_HW_RESELECT, host->addr + TUL_SCtrl1);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1310) outb(scb->ident, host->addr + TUL_SFifo);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1311)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1312) if (scb->tagmsg) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1313) outb(scb->tagmsg, host->addr + TUL_SFifo);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1314) outb(scb->tagid, host->addr + TUL_SFifo);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1315) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1316) if ((active_tc->flags & (TCF_WDTR_DONE | TCF_NO_WDTR)) == 0) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1317) active_tc->flags |= TCF_WDTR_DONE;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1318) outb(MSG_EXTEND, host->addr + TUL_SFifo);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1319) outb(2, host->addr + TUL_SFifo); /* Extended msg length */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1320) outb(3, host->addr + TUL_SFifo); /* Sync request */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1321) outb(1, host->addr + TUL_SFifo); /* Start from 16 bits */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1322) } else if ((active_tc->flags & (TCF_SYNC_DONE | TCF_NO_SYNC_NEGO)) == 0) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1323) active_tc->flags |= TCF_SYNC_DONE;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1324) outb(MSG_EXTEND, host->addr + TUL_SFifo);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1325) outb(3, host->addr + TUL_SFifo); /* extended msg length */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1326) outb(1, host->addr + TUL_SFifo); /* sync request */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1327) outb(initio_rate_tbl[active_tc->flags & TCF_SCSI_RATE], host->addr + TUL_SFifo);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1328) outb(MAX_OFFSET, host->addr + TUL_SFifo); /* REQ/ACK offset */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1329) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1330) outb(TSC_XF_FIFO_OUT, host->addr + TUL_SCmd);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1331) if (wait_tulip(host) == -1)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1332) return -1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1333) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1334) outb(TSC_FLUSH_FIFO, host->addr + TUL_SCtrl0);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1335) outb((inb(host->addr + TUL_SSignal) & (TSC_SET_ACK | 7)), host->addr + TUL_SSignal);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1336) /* Into before CDB xfer */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1337) return 3;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1338) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1339)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1340)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1341) /**
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1342) * initio_state_2 - SCSI state machine
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1343) * @host: InitIO host we are controlling
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1344) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1345) * state after selection with attention
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1346) * state after selection with attention3
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1347) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1348)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1349) static int initio_state_2(struct initio_host * host)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1350) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1351) struct scsi_ctrl_blk *scb = host->active;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1352) struct target_control *active_tc = host->active_tc;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1353) #if DEBUG_STATE
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1354) printk("-s2-");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1355) #endif
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1356)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1357) initio_unlink_pend_scb(host, scb);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1358) initio_append_busy_scb(host, scb);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1359)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1360) outb(active_tc->sconfig0, host->addr + TUL_SConfig);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1361)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1362) if (host->jsstatus1 & TSS_CMD_PH_CMP)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1363) return 4;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1364)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1365) outb(TSC_FLUSH_FIFO, host->addr + TUL_SCtrl0);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1366) outb((inb(host->addr + TUL_SSignal) & (TSC_SET_ACK | 7)), host->addr + TUL_SSignal);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1367) /* Into before CDB xfer */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1368) return 3;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1369) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1370)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1371) /**
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1372) * initio_state_3 - SCSI state machine
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1373) * @host: InitIO host we are controlling
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1374) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1375) * state before CDB xfer is done
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1376) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1377)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1378) static int initio_state_3(struct initio_host * host)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1379) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1380) struct scsi_ctrl_blk *scb = host->active;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1381) struct target_control *active_tc = host->active_tc;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1382) int i;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1383)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1384) #if DEBUG_STATE
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1385) printk("-s3-");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1386) #endif
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1387) for (;;) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1388) switch (host->phase) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1389) case CMD_OUT: /* Command out phase */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1390) for (i = 0; i < (int) scb->cdblen; i++)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1391) outb(scb->cdb[i], host->addr + TUL_SFifo);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1392) outb(TSC_XF_FIFO_OUT, host->addr + TUL_SCmd);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1393) if (wait_tulip(host) == -1)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1394) return -1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1395) if (host->phase == CMD_OUT)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1396) return initio_bad_seq(host);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1397) return 4;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1398)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1399) case MSG_IN: /* Message in phase */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1400) scb->next_state = 3;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1401) if (initio_msgin(host) == -1)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1402) return -1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1403) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1404)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1405) case STATUS_IN: /* Status phase */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1406) if (initio_status_msg(host) == -1)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1407) return -1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1408) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1409)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1410) case MSG_OUT: /* Message out phase */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1411) if (active_tc->flags & (TCF_SYNC_DONE | TCF_NO_SYNC_NEGO)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1412) outb(MSG_NOP, host->addr + TUL_SFifo); /* msg nop */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1413) outb(TSC_XF_FIFO_OUT, host->addr + TUL_SCmd);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1414) if (wait_tulip(host) == -1)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1415) return -1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1416) } else {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1417) active_tc->flags |= TCF_SYNC_DONE;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1418)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1419) outb(MSG_EXTEND, host->addr + TUL_SFifo);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1420) outb(3, host->addr + TUL_SFifo); /* ext. msg len */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1421) outb(1, host->addr + TUL_SFifo); /* sync request */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1422) outb(initio_rate_tbl[active_tc->flags & TCF_SCSI_RATE], host->addr + TUL_SFifo);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1423) outb(MAX_OFFSET, host->addr + TUL_SFifo); /* REQ/ACK offset */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1424) outb(TSC_XF_FIFO_OUT, host->addr + TUL_SCmd);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1425) if (wait_tulip(host) == -1)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1426) return -1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1427) outb(TSC_FLUSH_FIFO, host->addr + TUL_SCtrl0);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1428) outb(inb(host->addr + TUL_SSignal) & (TSC_SET_ACK | 7), host->addr + TUL_SSignal);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1429)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1430) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1431) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1432) default:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1433) return initio_bad_seq(host);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1434) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1435) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1436) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1437)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1438) /**
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1439) * initio_state_4 - SCSI state machine
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1440) * @host: InitIO host we are controlling
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1441) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1442) * SCSI state machine. State 4
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1443) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1444)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1445) static int initio_state_4(struct initio_host * host)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1446) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1447) struct scsi_ctrl_blk *scb = host->active;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1448)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1449) #if DEBUG_STATE
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1450) printk("-s4-");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1451) #endif
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1452) if ((scb->flags & SCF_DIR) == SCF_NO_XF) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1453) return 6; /* Go to state 6 (After data) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1454) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1455) for (;;) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1456) if (scb->buflen == 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1457) return 6;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1458)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1459) switch (host->phase) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1460)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1461) case STATUS_IN: /* Status phase */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1462) if ((scb->flags & SCF_DIR) != 0) /* if direction bit set then report data underrun */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1463) scb->hastat = HOST_DO_DU;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1464) if ((initio_status_msg(host)) == -1)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1465) return -1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1466) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1467)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1468) case MSG_IN: /* Message in phase */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1469) scb->next_state = 0x4;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1470) if (initio_msgin(host) == -1)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1471) return -1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1472) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1473)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1474) case MSG_OUT: /* Message out phase */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1475) if (host->jsstatus0 & TSS_PAR_ERROR) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1476) scb->buflen = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1477) scb->hastat = HOST_DO_DU;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1478) if (initio_msgout_ide(host) == -1)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1479) return -1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1480) return 6;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1481) } else {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1482) outb(MSG_NOP, host->addr + TUL_SFifo); /* msg nop */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1483) outb(TSC_XF_FIFO_OUT, host->addr + TUL_SCmd);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1484) if (wait_tulip(host) == -1)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1485) return -1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1486) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1487) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1488)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1489) case DATA_IN: /* Data in phase */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1490) return initio_xfer_data_in(host);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1491)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1492) case DATA_OUT: /* Data out phase */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1493) return initio_xfer_data_out(host);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1494)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1495) default:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1496) return initio_bad_seq(host);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1497) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1498) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1499) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1500)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1501)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1502) /**
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1503) * initio_state_5 - SCSI state machine
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1504) * @host: InitIO host we are controlling
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1505) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1506) * State after dma xfer done or phase change before xfer done
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1507) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1508)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1509) static int initio_state_5(struct initio_host * host)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1510) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1511) struct scsi_ctrl_blk *scb = host->active;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1512) long cnt, xcnt; /* cannot use unsigned !! code: if (xcnt < 0) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1513)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1514) #if DEBUG_STATE
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1515) printk("-s5-");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1516) #endif
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1517) /*------ get remaining count -------*/
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1518) cnt = inl(host->addr + TUL_SCnt0) & 0x0FFFFFF;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1519)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1520) if (inb(host->addr + TUL_XCmd) & 0x20) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1521) /* ----------------------- DATA_IN ----------------------------- */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1522) /* check scsi parity error */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1523) if (host->jsstatus0 & TSS_PAR_ERROR)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1524) scb->hastat = HOST_DO_DU;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1525) if (inb(host->addr + TUL_XStatus) & XPEND) { /* DMA xfer pending, Send STOP */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1526) /* tell Hardware scsi xfer has been terminated */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1527) outb(inb(host->addr + TUL_XCtrl) | 0x80, host->addr + TUL_XCtrl);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1528) /* wait until DMA xfer not pending */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1529) while (inb(host->addr + TUL_XStatus) & XPEND)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1530) cpu_relax();
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1531) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1532) } else {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1533) /*-------- DATA OUT -----------*/
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1534) if ((inb(host->addr + TUL_SStatus1) & TSS_XFER_CMP) == 0) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1535) if (host->active_tc->js_period & TSC_WIDE_SCSI)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1536) cnt += (inb(host->addr + TUL_SFifoCnt) & 0x1F) << 1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1537) else
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1538) cnt += (inb(host->addr + TUL_SFifoCnt) & 0x1F);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1539) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1540) if (inb(host->addr + TUL_XStatus) & XPEND) { /* if DMA xfer is pending, abort DMA xfer */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1541) outb(TAX_X_ABT, host->addr + TUL_XCmd);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1542) /* wait Abort DMA xfer done */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1543) while ((inb(host->addr + TUL_Int) & XABT) == 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1544) cpu_relax();
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1545) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1546) if ((cnt == 1) && (host->phase == DATA_OUT)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1547) outb(TSC_XF_FIFO_OUT, host->addr + TUL_SCmd);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1548) if (wait_tulip(host) == -1)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1549) return -1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1550) cnt = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1551) } else {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1552) if ((inb(host->addr + TUL_SStatus1) & TSS_XFER_CMP) == 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1553) outb(TSC_FLUSH_FIFO, host->addr + TUL_SCtrl0);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1554) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1555) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1556) if (cnt == 0) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1557) scb->buflen = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1558) return 6; /* After Data */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1559) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1560) /* Update active data pointer */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1561) xcnt = (long) scb->buflen - cnt; /* xcnt== bytes already xferred */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1562) scb->buflen = (u32) cnt; /* cnt == bytes left to be xferred */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1563) if (scb->flags & SCF_SG) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1564) struct sg_entry *sgp;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1565) unsigned long i;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1566)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1567) sgp = &scb->sglist[scb->sgidx];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1568) for (i = scb->sgidx; i < scb->sgmax; sgp++, i++) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1569) xcnt -= (long) sgp->len;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1570) if (xcnt < 0) { /* this sgp xfer half done */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1571) xcnt += (long) sgp->len; /* xcnt == bytes xferred in this sgp */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1572) sgp->data += (u32) xcnt; /* new ptr to be xfer */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1573) sgp->len -= (u32) xcnt; /* new len to be xfer */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1574) scb->bufptr += ((u32) (i - scb->sgidx) << 3);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1575) /* new SG table ptr */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1576) scb->sglen = (u8) (scb->sgmax - i);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1577) /* new SG table len */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1578) scb->sgidx = (u16) i;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1579) /* for next disc and come in this loop */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1580) return 4; /* Go to state 4 */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1581) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1582) /* else (xcnt >= 0 , i.e. this sgp already xferred */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1583) } /* for */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1584) return 6; /* Go to state 6 */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1585) } else {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1586) scb->bufptr += (u32) xcnt;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1587) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1588) return 4; /* Go to state 4 */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1589) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1590)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1591) /**
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1592) * initio_state_6 - SCSI state machine
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1593) * @host: InitIO host we are controlling
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1594) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1595) * State after Data phase
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1596) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1597)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1598) static int initio_state_6(struct initio_host * host)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1599) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1600) struct scsi_ctrl_blk *scb = host->active;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1601)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1602) #if DEBUG_STATE
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1603) printk("-s6-");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1604) #endif
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1605) for (;;) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1606) switch (host->phase) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1607) case STATUS_IN: /* Status phase */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1608) if ((initio_status_msg(host)) == -1)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1609) return -1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1610) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1611)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1612) case MSG_IN: /* Message in phase */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1613) scb->next_state = 6;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1614) if ((initio_msgin(host)) == -1)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1615) return -1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1616) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1617)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1618) case MSG_OUT: /* Message out phase */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1619) outb(MSG_NOP, host->addr + TUL_SFifo); /* msg nop */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1620) outb(TSC_XF_FIFO_OUT, host->addr + TUL_SCmd);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1621) if (wait_tulip(host) == -1)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1622) return -1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1623) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1624)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1625) case DATA_IN: /* Data in phase */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1626) return initio_xpad_in(host);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1627)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1628) case DATA_OUT: /* Data out phase */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1629) return initio_xpad_out(host);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1630)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1631) default:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1632) return initio_bad_seq(host);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1633) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1634) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1635) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1636)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1637) /**
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1638) * initio_state_7 - SCSI state machine
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1639) * @host: InitIO host we are controlling
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1640) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1641) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1642)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1643) static int initio_state_7(struct initio_host * host)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1644) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1645) int cnt, i;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1646)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1647) #if DEBUG_STATE
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1648) printk("-s7-");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1649) #endif
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1650) /* flush SCSI FIFO */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1651) cnt = inb(host->addr + TUL_SFifoCnt) & 0x1F;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1652) if (cnt) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1653) for (i = 0; i < cnt; i++)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1654) inb(host->addr + TUL_SFifo);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1655) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1656) switch (host->phase) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1657) case DATA_IN: /* Data in phase */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1658) case DATA_OUT: /* Data out phase */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1659) return initio_bad_seq(host);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1660) default:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1661) return 6; /* Go to state 6 */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1662) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1663) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1664)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1665) /**
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1666) * initio_xfer_data_in - Commence data input
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1667) * @host: InitIO host in use
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1668) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1669) * Commence a block of data transfer. The transfer itself will
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1670) * be managed by the controller and we will get a completion (or
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1671) * failure) interrupt.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1672) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1673) static int initio_xfer_data_in(struct initio_host * host)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1674) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1675) struct scsi_ctrl_blk *scb = host->active;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1676)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1677) if ((scb->flags & SCF_DIR) == SCF_DOUT)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1678) return 6; /* wrong direction */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1679)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1680) outl(scb->buflen, host->addr + TUL_SCnt0);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1681) outb(TSC_XF_DMA_IN, host->addr + TUL_SCmd); /* 7/25/95 */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1682)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1683) if (scb->flags & SCF_SG) { /* S/G xfer */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1684) outl(((u32) scb->sglen) << 3, host->addr + TUL_XCntH);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1685) outl(scb->bufptr, host->addr + TUL_XAddH);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1686) outb(TAX_SG_IN, host->addr + TUL_XCmd);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1687) } else {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1688) outl(scb->buflen, host->addr + TUL_XCntH);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1689) outl(scb->bufptr, host->addr + TUL_XAddH);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1690) outb(TAX_X_IN, host->addr + TUL_XCmd);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1691) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1692) scb->next_state = 0x5;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1693) return 0; /* return to OS, wait xfer done , let jas_isr come in */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1694) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1695)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1696) /**
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1697) * initio_xfer_data_out - Commence data output
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1698) * @host: InitIO host in use
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1699) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1700) * Commence a block of data transfer. The transfer itself will
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1701) * be managed by the controller and we will get a completion (or
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1702) * failure) interrupt.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1703) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1704)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1705) static int initio_xfer_data_out(struct initio_host * host)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1706) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1707) struct scsi_ctrl_blk *scb = host->active;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1708)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1709) if ((scb->flags & SCF_DIR) == SCF_DIN)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1710) return 6; /* wrong direction */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1711)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1712) outl(scb->buflen, host->addr + TUL_SCnt0);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1713) outb(TSC_XF_DMA_OUT, host->addr + TUL_SCmd);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1714)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1715) if (scb->flags & SCF_SG) { /* S/G xfer */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1716) outl(((u32) scb->sglen) << 3, host->addr + TUL_XCntH);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1717) outl(scb->bufptr, host->addr + TUL_XAddH);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1718) outb(TAX_SG_OUT, host->addr + TUL_XCmd);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1719) } else {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1720) outl(scb->buflen, host->addr + TUL_XCntH);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1721) outl(scb->bufptr, host->addr + TUL_XAddH);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1722) outb(TAX_X_OUT, host->addr + TUL_XCmd);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1723) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1724)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1725) scb->next_state = 0x5;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1726) return 0; /* return to OS, wait xfer done , let jas_isr come in */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1727) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1728)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1729) int initio_xpad_in(struct initio_host * host)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1730) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1731) struct scsi_ctrl_blk *scb = host->active;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1732) struct target_control *active_tc = host->active_tc;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1733)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1734) if ((scb->flags & SCF_DIR) != SCF_NO_DCHK)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1735) scb->hastat = HOST_DO_DU; /* over run */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1736) for (;;) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1737) if (active_tc->js_period & TSC_WIDE_SCSI)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1738) outl(2, host->addr + TUL_SCnt0);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1739) else
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1740) outl(1, host->addr + TUL_SCnt0);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1741)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1742) outb(TSC_XF_FIFO_IN, host->addr + TUL_SCmd);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1743) if (wait_tulip(host) == -1)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1744) return -1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1745) if (host->phase != DATA_IN) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1746) outb(TSC_FLUSH_FIFO, host->addr + TUL_SCtrl0);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1747) return 6;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1748) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1749) inb(host->addr + TUL_SFifo);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1750) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1751) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1752)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1753) int initio_xpad_out(struct initio_host * host)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1754) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1755) struct scsi_ctrl_blk *scb = host->active;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1756) struct target_control *active_tc = host->active_tc;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1757)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1758) if ((scb->flags & SCF_DIR) != SCF_NO_DCHK)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1759) scb->hastat = HOST_DO_DU; /* over run */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1760) for (;;) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1761) if (active_tc->js_period & TSC_WIDE_SCSI)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1762) outl(2, host->addr + TUL_SCnt0);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1763) else
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1764) outl(1, host->addr + TUL_SCnt0);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1765)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1766) outb(0, host->addr + TUL_SFifo);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1767) outb(TSC_XF_FIFO_OUT, host->addr + TUL_SCmd);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1768) if ((wait_tulip(host)) == -1)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1769) return -1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1770) if (host->phase != DATA_OUT) { /* Disable wide CPU to allow read 16 bits */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1771) outb(TSC_HW_RESELECT, host->addr + TUL_SCtrl1);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1772) outb(TSC_FLUSH_FIFO, host->addr + TUL_SCtrl0);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1773) return 6;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1774) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1775) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1776) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1777)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1778) int initio_status_msg(struct initio_host * host)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1779) { /* status & MSG_IN */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1780) struct scsi_ctrl_blk *scb = host->active;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1781) u8 msg;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1782)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1783) outb(TSC_CMD_COMP, host->addr + TUL_SCmd);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1784) if (wait_tulip(host) == -1)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1785) return -1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1786)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1787) /* get status */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1788) scb->tastat = inb(host->addr + TUL_SFifo);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1789)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1790) if (host->phase == MSG_OUT) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1791) if (host->jsstatus0 & TSS_PAR_ERROR)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1792) outb(MSG_PARITY, host->addr + TUL_SFifo);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1793) else
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1794) outb(MSG_NOP, host->addr + TUL_SFifo);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1795) outb(TSC_XF_FIFO_OUT, host->addr + TUL_SCmd);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1796) return wait_tulip(host);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1797) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1798) if (host->phase == MSG_IN) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1799) msg = inb(host->addr + TUL_SFifo);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1800) if (host->jsstatus0 & TSS_PAR_ERROR) { /* Parity error */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1801) if ((initio_msgin_accept(host)) == -1)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1802) return -1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1803) if (host->phase != MSG_OUT)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1804) return initio_bad_seq(host);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1805) outb(MSG_PARITY, host->addr + TUL_SFifo);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1806) outb(TSC_XF_FIFO_OUT, host->addr + TUL_SCmd);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1807) return wait_tulip(host);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1808) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1809) if (msg == 0) { /* Command complete */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1810)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1811) if ((scb->tastat & 0x18) == 0x10) /* No link support */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1812) return initio_bad_seq(host);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1813) outb(TSC_FLUSH_FIFO, host->addr + TUL_SCtrl0);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1814) outb(TSC_MSG_ACCEPT, host->addr + TUL_SCmd);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1815) return initio_wait_done_disc(host);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1816)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1817) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1818) if (msg == MSG_LINK_COMP || msg == MSG_LINK_FLAG) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1819) if ((scb->tastat & 0x18) == 0x10)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1820) return initio_msgin_accept(host);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1821) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1822) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1823) return initio_bad_seq(host);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1824) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1825)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1826)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1827) /* scsi bus free */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1828) int int_initio_busfree(struct initio_host * host)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1829) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1830) struct scsi_ctrl_blk *scb = host->active;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1831)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1832) if (scb != NULL) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1833) if (scb->status & SCB_SELECT) { /* selection timeout */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1834) initio_unlink_pend_scb(host, scb);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1835) scb->hastat = HOST_SEL_TOUT;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1836) initio_append_done_scb(host, scb);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1837) } else { /* Unexpected bus free */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1838) initio_unlink_busy_scb(host, scb);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1839) scb->hastat = HOST_BUS_FREE;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1840) initio_append_done_scb(host, scb);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1841) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1842) host->active = NULL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1843) host->active_tc = NULL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1844) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1845) outb(TSC_FLUSH_FIFO, host->addr + TUL_SCtrl0); /* Flush SCSI FIFO */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1846) outb(TSC_INITDEFAULT, host->addr + TUL_SConfig);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1847) outb(TSC_HW_RESELECT, host->addr + TUL_SCtrl1); /* Enable HW reselect */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1848) return -1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1849) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1850)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1851)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1852) /**
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1853) * int_initio_scsi_rst - SCSI reset occurred
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1854) * @host: Host seeing the reset
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1855) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1856) * A SCSI bus reset has occurred. Clean up any pending transfer
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1857) * the hardware is doing by DMA and then abort all active and
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1858) * disconnected commands. The mid layer should sort the rest out
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1859) * for us
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1860) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1861)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1862) static int int_initio_scsi_rst(struct initio_host * host)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1863) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1864) struct scsi_ctrl_blk *scb;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1865) int i;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1866)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1867) /* if DMA xfer is pending, abort DMA xfer */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1868) if (inb(host->addr + TUL_XStatus) & 0x01) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1869) outb(TAX_X_ABT | TAX_X_CLR_FIFO, host->addr + TUL_XCmd);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1870) /* wait Abort DMA xfer done */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1871) while ((inb(host->addr + TUL_Int) & 0x04) == 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1872) cpu_relax();
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1873) outb(TSC_FLUSH_FIFO, host->addr + TUL_SCtrl0);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1874) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1875) /* Abort all active & disconnected scb */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1876) while ((scb = initio_pop_busy_scb(host)) != NULL) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1877) scb->hastat = HOST_BAD_PHAS;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1878) initio_append_done_scb(host, scb);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1879) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1880) host->active = NULL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1881) host->active_tc = NULL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1882)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1883) /* clr sync nego. done flag */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1884) for (i = 0; i < host->max_tar; i++)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1885) host->targets[i].flags &= ~(TCF_SYNC_DONE | TCF_WDTR_DONE);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1886) return -1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1887) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1888)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1889) /**
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1890) * int_initio_scsi_resel - Reselection occurred
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1891) * @host: InitIO host adapter
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1892) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1893) * A SCSI reselection event has been signalled and the interrupt
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1894) * is now being processed. Work out which command block needs attention
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1895) * and continue processing that command.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1896) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1897)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1898) int int_initio_resel(struct initio_host * host)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1899) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1900) struct scsi_ctrl_blk *scb;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1901) struct target_control *active_tc;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1902) u8 tag, msg = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1903) u8 tar, lun;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1904)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1905) if ((scb = host->active) != NULL) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1906) /* FIXME: Why check and not just clear ? */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1907) if (scb->status & SCB_SELECT) /* if waiting for selection complete */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1908) scb->status &= ~SCB_SELECT;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1909) host->active = NULL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1910) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1911) /* --------- get target id---------------------- */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1912) tar = inb(host->addr + TUL_SBusId);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1913) /* ------ get LUN from Identify message----------- */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1914) lun = inb(host->addr + TUL_SIdent) & 0x0F;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1915) /* 07/22/98 from 0x1F -> 0x0F */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1916) active_tc = &host->targets[tar];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1917) host->active_tc = active_tc;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1918) outb(active_tc->sconfig0, host->addr + TUL_SConfig);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1919) outb(active_tc->js_period, host->addr + TUL_SPeriod);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1920)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1921) /* ------------- tag queueing ? ------------------- */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1922) if (active_tc->drv_flags & TCF_DRV_EN_TAG) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1923) if ((initio_msgin_accept(host)) == -1)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1924) return -1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1925) if (host->phase != MSG_IN)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1926) goto no_tag;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1927) outl(1, host->addr + TUL_SCnt0);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1928) outb(TSC_XF_FIFO_IN, host->addr + TUL_SCmd);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1929) if (wait_tulip(host) == -1)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1930) return -1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1931) msg = inb(host->addr + TUL_SFifo); /* Read Tag Message */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1932)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1933) if (msg < MSG_STAG || msg > MSG_OTAG) /* Is simple Tag */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1934) goto no_tag;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1935)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1936) if (initio_msgin_accept(host) == -1)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1937) return -1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1938)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1939) if (host->phase != MSG_IN)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1940) goto no_tag;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1941)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1942) outl(1, host->addr + TUL_SCnt0);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1943) outb(TSC_XF_FIFO_IN, host->addr + TUL_SCmd);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1944) if (wait_tulip(host) == -1)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1945) return -1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1946) tag = inb(host->addr + TUL_SFifo); /* Read Tag ID */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1947) scb = host->scb + tag;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1948) if (scb->target != tar || scb->lun != lun) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1949) return initio_msgout_abort_tag(host);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1950) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1951) if (scb->status != SCB_BUSY) { /* 03/24/95 */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1952) return initio_msgout_abort_tag(host);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1953) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1954) host->active = scb;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1955) if ((initio_msgin_accept(host)) == -1)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1956) return -1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1957) } else { /* No tag */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1958) no_tag:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1959) if ((scb = initio_find_busy_scb(host, tar | (lun << 8))) == NULL) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1960) return initio_msgout_abort_targ(host);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1961) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1962) host->active = scb;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1963) if (!(active_tc->drv_flags & TCF_DRV_EN_TAG)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1964) if ((initio_msgin_accept(host)) == -1)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1965) return -1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1966) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1967) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1968) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1969) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1970)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1971) /**
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1972) * int_initio_bad_seq - out of phase
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1973) * @host: InitIO host flagging event
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1974) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1975) * We have ended up out of phase somehow. Reset the host controller
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1976) * and throw all our toys out of the pram. Let the midlayer clean up
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1977) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1978)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1979) static int int_initio_bad_seq(struct initio_host * host)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1980) { /* target wrong phase */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1981) struct scsi_ctrl_blk *scb;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1982) int i;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1983)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1984) initio_reset_scsi(host, 10);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1985)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1986) while ((scb = initio_pop_busy_scb(host)) != NULL) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1987) scb->hastat = HOST_BAD_PHAS;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1988) initio_append_done_scb(host, scb);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1989) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1990) for (i = 0; i < host->max_tar; i++)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1991) host->targets[i].flags &= ~(TCF_SYNC_DONE | TCF_WDTR_DONE);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1992) return -1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1993) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1994)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1995)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1996) /**
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1997) * initio_msgout_abort_targ - abort a tag
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1998) * @host: InitIO host
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1999) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2000) * Abort when the target/lun does not match or when our SCB is not
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2001) * busy. Used by untagged commands.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2002) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2003)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2004) static int initio_msgout_abort_targ(struct initio_host * host)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2005) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2006)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2007) outb(((inb(host->addr + TUL_SSignal) & (TSC_SET_ACK | 7)) | TSC_SET_ATN), host->addr + TUL_SSignal);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2008) if (initio_msgin_accept(host) == -1)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2009) return -1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2010) if (host->phase != MSG_OUT)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2011) return initio_bad_seq(host);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2012)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2013) outb(MSG_ABORT, host->addr + TUL_SFifo);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2014) outb(TSC_XF_FIFO_OUT, host->addr + TUL_SCmd);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2015)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2016) return initio_wait_disc(host);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2017) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2018)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2019) /**
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2020) * initio_msgout_abort_tag - abort a tag
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2021) * @host: InitIO host
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2022) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2023) * Abort when the target/lun does not match or when our SCB is not
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2024) * busy. Used for tagged commands.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2025) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2026)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2027) static int initio_msgout_abort_tag(struct initio_host * host)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2028) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2029)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2030) outb(((inb(host->addr + TUL_SSignal) & (TSC_SET_ACK | 7)) | TSC_SET_ATN), host->addr + TUL_SSignal);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2031) if (initio_msgin_accept(host) == -1)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2032) return -1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2033) if (host->phase != MSG_OUT)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2034) return initio_bad_seq(host);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2035)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2036) outb(MSG_ABORT_TAG, host->addr + TUL_SFifo);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2037) outb(TSC_XF_FIFO_OUT, host->addr + TUL_SCmd);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2038)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2039) return initio_wait_disc(host);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2040)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2041) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2042)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2043) /**
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2044) * initio_msgin - Message in
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2045) * @host: InitIO Host
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2046) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2047) * Process incoming message
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2048) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2049) static int initio_msgin(struct initio_host * host)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2050) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2051) struct target_control *active_tc;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2052)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2053) for (;;) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2054) outb(TSC_FLUSH_FIFO, host->addr + TUL_SCtrl0);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2055)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2056) outl(1, host->addr + TUL_SCnt0);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2057) outb(TSC_XF_FIFO_IN, host->addr + TUL_SCmd);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2058) if (wait_tulip(host) == -1)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2059) return -1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2060)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2061) switch (inb(host->addr + TUL_SFifo)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2062) case MSG_DISC: /* Disconnect msg */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2063) outb(TSC_MSG_ACCEPT, host->addr + TUL_SCmd);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2064) return initio_wait_disc(host);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2065) case MSG_SDP:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2066) case MSG_RESTORE:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2067) case MSG_NOP:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2068) initio_msgin_accept(host);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2069) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2070) case MSG_REJ: /* Clear ATN first */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2071) outb((inb(host->addr + TUL_SSignal) & (TSC_SET_ACK | 7)),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2072) host->addr + TUL_SSignal);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2073) active_tc = host->active_tc;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2074) if ((active_tc->flags & (TCF_SYNC_DONE | TCF_NO_SYNC_NEGO)) == 0) /* do sync nego */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2075) outb(((inb(host->addr + TUL_SSignal) & (TSC_SET_ACK | 7)) | TSC_SET_ATN),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2076) host->addr + TUL_SSignal);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2077) initio_msgin_accept(host);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2078) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2079) case MSG_EXTEND: /* extended msg */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2080) initio_msgin_extend(host);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2081) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2082) case MSG_IGNOREWIDE:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2083) initio_msgin_accept(host);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2084) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2085) case MSG_COMP:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2086) outb(TSC_FLUSH_FIFO, host->addr + TUL_SCtrl0);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2087) outb(TSC_MSG_ACCEPT, host->addr + TUL_SCmd);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2088) return initio_wait_done_disc(host);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2089) default:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2090) initio_msgout_reject(host);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2091) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2092) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2093) if (host->phase != MSG_IN)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2094) return host->phase;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2095) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2096) /* statement won't reach here */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2097) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2098)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2099) static int initio_msgout_reject(struct initio_host * host)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2100) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2101) outb(((inb(host->addr + TUL_SSignal) & (TSC_SET_ACK | 7)) | TSC_SET_ATN), host->addr + TUL_SSignal);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2102)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2103) if (initio_msgin_accept(host) == -1)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2104) return -1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2105)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2106) if (host->phase == MSG_OUT) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2107) outb(MSG_REJ, host->addr + TUL_SFifo); /* Msg reject */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2108) outb(TSC_XF_FIFO_OUT, host->addr + TUL_SCmd);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2109) return wait_tulip(host);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2110) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2111) return host->phase;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2112) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2113)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2114) static int initio_msgout_ide(struct initio_host * host)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2115) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2116) outb(MSG_IDE, host->addr + TUL_SFifo); /* Initiator Detected Error */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2117) outb(TSC_XF_FIFO_OUT, host->addr + TUL_SCmd);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2118) return wait_tulip(host);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2119) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2120)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2121) static int initio_msgin_extend(struct initio_host * host)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2122) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2123) u8 len, idx;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2124)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2125) if (initio_msgin_accept(host) != MSG_IN)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2126) return host->phase;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2127)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2128) /* Get extended msg length */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2129) outl(1, host->addr + TUL_SCnt0);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2130) outb(TSC_XF_FIFO_IN, host->addr + TUL_SCmd);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2131) if (wait_tulip(host) == -1)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2132) return -1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2133)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2134) len = inb(host->addr + TUL_SFifo);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2135) host->msg[0] = len;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2136) for (idx = 1; len != 0; len--) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2137)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2138) if ((initio_msgin_accept(host)) != MSG_IN)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2139) return host->phase;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2140) outl(1, host->addr + TUL_SCnt0);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2141) outb(TSC_XF_FIFO_IN, host->addr + TUL_SCmd);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2142) if (wait_tulip(host) == -1)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2143) return -1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2144) host->msg[idx++] = inb(host->addr + TUL_SFifo);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2145) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2146) if (host->msg[1] == 1) { /* if it's synchronous data transfer request */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2147) u8 r;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2148) if (host->msg[0] != 3) /* if length is not right */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2149) return initio_msgout_reject(host);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2150) if (host->active_tc->flags & TCF_NO_SYNC_NEGO) { /* Set OFFSET=0 to do async, nego back */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2151) host->msg[3] = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2152) } else {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2153) if (initio_msgin_sync(host) == 0 &&
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2154) (host->active_tc->flags & TCF_SYNC_DONE)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2155) initio_sync_done(host);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2156) return initio_msgin_accept(host);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2157) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2158) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2159)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2160) r = inb(host->addr + TUL_SSignal);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2161) outb((r & (TSC_SET_ACK | 7)) | TSC_SET_ATN,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2162) host->addr + TUL_SSignal);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2163) if (initio_msgin_accept(host) != MSG_OUT)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2164) return host->phase;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2165) /* sync msg out */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2166) outb(TSC_FLUSH_FIFO, host->addr + TUL_SCtrl0);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2167)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2168) initio_sync_done(host);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2169)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2170) outb(MSG_EXTEND, host->addr + TUL_SFifo);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2171) outb(3, host->addr + TUL_SFifo);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2172) outb(1, host->addr + TUL_SFifo);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2173) outb(host->msg[2], host->addr + TUL_SFifo);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2174) outb(host->msg[3], host->addr + TUL_SFifo);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2175) outb(TSC_XF_FIFO_OUT, host->addr + TUL_SCmd);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2176) return wait_tulip(host);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2177) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2178) if (host->msg[0] != 2 || host->msg[1] != 3)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2179) return initio_msgout_reject(host);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2180) /* if it's WIDE DATA XFER REQ */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2181) if (host->active_tc->flags & TCF_NO_WDTR) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2182) host->msg[2] = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2183) } else {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2184) if (host->msg[2] > 2) /* > 32 bits */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2185) return initio_msgout_reject(host);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2186) if (host->msg[2] == 2) { /* == 32 */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2187) host->msg[2] = 1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2188) } else {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2189) if ((host->active_tc->flags & TCF_NO_WDTR) == 0) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2190) wdtr_done(host);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2191) if ((host->active_tc->flags & (TCF_SYNC_DONE | TCF_NO_SYNC_NEGO)) == 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2192) outb(((inb(host->addr + TUL_SSignal) & (TSC_SET_ACK | 7)) | TSC_SET_ATN), host->addr + TUL_SSignal);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2193) return initio_msgin_accept(host);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2194) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2195) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2196) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2197) outb(((inb(host->addr + TUL_SSignal) & (TSC_SET_ACK | 7)) | TSC_SET_ATN), host->addr + TUL_SSignal);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2198)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2199) if (initio_msgin_accept(host) != MSG_OUT)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2200) return host->phase;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2201) /* WDTR msg out */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2202) outb(MSG_EXTEND, host->addr + TUL_SFifo);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2203) outb(2, host->addr + TUL_SFifo);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2204) outb(3, host->addr + TUL_SFifo);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2205) outb(host->msg[2], host->addr + TUL_SFifo);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2206) outb(TSC_XF_FIFO_OUT, host->addr + TUL_SCmd);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2207) return wait_tulip(host);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2208) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2209)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2210) static int initio_msgin_sync(struct initio_host * host)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2211) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2212) char default_period;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2213)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2214) default_period = initio_rate_tbl[host->active_tc->flags & TCF_SCSI_RATE];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2215) if (host->msg[3] > MAX_OFFSET) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2216) host->msg[3] = MAX_OFFSET;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2217) if (host->msg[2] < default_period) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2218) host->msg[2] = default_period;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2219) return 1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2220) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2221) if (host->msg[2] >= 59) /* Change to async */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2222) host->msg[3] = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2223) return 1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2224) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2225) /* offset requests asynchronous transfers ? */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2226) if (host->msg[3] == 0) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2227) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2228) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2229) if (host->msg[2] < default_period) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2230) host->msg[2] = default_period;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2231) return 1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2232) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2233) if (host->msg[2] >= 59) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2234) host->msg[3] = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2235) return 1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2236) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2237) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2238) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2239)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2240) static int wdtr_done(struct initio_host * host)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2241) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2242) host->active_tc->flags &= ~TCF_SYNC_DONE;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2243) host->active_tc->flags |= TCF_WDTR_DONE;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2244)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2245) host->active_tc->js_period = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2246) if (host->msg[2]) /* if 16 bit */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2247) host->active_tc->js_period |= TSC_WIDE_SCSI;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2248) host->active_tc->sconfig0 &= ~TSC_ALT_PERIOD;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2249) outb(host->active_tc->sconfig0, host->addr + TUL_SConfig);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2250) outb(host->active_tc->js_period, host->addr + TUL_SPeriod);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2251)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2252) return 1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2253) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2254)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2255) static int initio_sync_done(struct initio_host * host)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2256) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2257) int i;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2258)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2259) host->active_tc->flags |= TCF_SYNC_DONE;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2260)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2261) if (host->msg[3]) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2262) host->active_tc->js_period |= host->msg[3];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2263) for (i = 0; i < 8; i++) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2264) if (initio_rate_tbl[i] >= host->msg[2]) /* pick the big one */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2265) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2266) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2267) host->active_tc->js_period |= (i << 4);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2268) host->active_tc->sconfig0 |= TSC_ALT_PERIOD;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2269) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2270) outb(host->active_tc->sconfig0, host->addr + TUL_SConfig);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2271) outb(host->active_tc->js_period, host->addr + TUL_SPeriod);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2272)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2273) return -1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2274) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2275)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2276)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2277) static int initio_post_scsi_rst(struct initio_host * host)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2278) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2279) struct scsi_ctrl_blk *scb;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2280) struct target_control *active_tc;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2281) int i;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2282)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2283) host->active = NULL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2284) host->active_tc = NULL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2285) host->flags = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2286)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2287) while ((scb = initio_pop_busy_scb(host)) != NULL) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2288) scb->hastat = HOST_BAD_PHAS;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2289) initio_append_done_scb(host, scb);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2290) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2291) /* clear sync done flag */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2292) active_tc = &host->targets[0];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2293) for (i = 0; i < host->max_tar; active_tc++, i++) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2294) active_tc->flags &= ~(TCF_SYNC_DONE | TCF_WDTR_DONE);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2295) /* Initialize the sync. xfer register values to an asyn xfer */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2296) active_tc->js_period = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2297) active_tc->sconfig0 = host->sconf1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2298) host->act_tags[0] = 0; /* 07/22/98 */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2299) host->targets[i].flags &= ~TCF_BUSY; /* 07/22/98 */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2300) } /* for */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2301)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2302) return -1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2303) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2304)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2305) static void initio_select_atn_stop(struct initio_host * host, struct scsi_ctrl_blk * scb)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2306) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2307) scb->status |= SCB_SELECT;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2308) scb->next_state = 0x1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2309) host->active = scb;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2310) host->active_tc = &host->targets[scb->target];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2311) outb(TSC_SELATNSTOP, host->addr + TUL_SCmd);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2312) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2313)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2314)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2315) static void initio_select_atn(struct initio_host * host, struct scsi_ctrl_blk * scb)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2316) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2317) int i;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2318)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2319) scb->status |= SCB_SELECT;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2320) scb->next_state = 0x2;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2321)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2322) outb(scb->ident, host->addr + TUL_SFifo);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2323) for (i = 0; i < (int) scb->cdblen; i++)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2324) outb(scb->cdb[i], host->addr + TUL_SFifo);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2325) host->active_tc = &host->targets[scb->target];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2326) host->active = scb;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2327) outb(TSC_SEL_ATN, host->addr + TUL_SCmd);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2328) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2329)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2330) static void initio_select_atn3(struct initio_host * host, struct scsi_ctrl_blk * scb)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2331) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2332) int i;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2333)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2334) scb->status |= SCB_SELECT;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2335) scb->next_state = 0x2;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2336)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2337) outb(scb->ident, host->addr + TUL_SFifo);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2338) outb(scb->tagmsg, host->addr + TUL_SFifo);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2339) outb(scb->tagid, host->addr + TUL_SFifo);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2340) for (i = 0; i < scb->cdblen; i++)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2341) outb(scb->cdb[i], host->addr + TUL_SFifo);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2342) host->active_tc = &host->targets[scb->target];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2343) host->active = scb;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2344) outb(TSC_SEL_ATN3, host->addr + TUL_SCmd);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2345) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2346)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2347) /**
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2348) * initio_bus_device_reset - SCSI Bus Device Reset
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2349) * @host: InitIO host to reset
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2350) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2351) * Perform a device reset and abort all pending SCBs for the
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2352) * victim device
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2353) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2354) int initio_bus_device_reset(struct initio_host * host)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2355) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2356) struct scsi_ctrl_blk *scb = host->active;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2357) struct target_control *active_tc = host->active_tc;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2358) struct scsi_ctrl_blk *tmp, *prev;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2359) u8 tar;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2360)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2361) if (host->phase != MSG_OUT)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2362) return int_initio_bad_seq(host); /* Unexpected phase */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2363)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2364) initio_unlink_pend_scb(host, scb);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2365) initio_release_scb(host, scb);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2366)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2367)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2368) tar = scb->target; /* target */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2369) active_tc->flags &= ~(TCF_SYNC_DONE | TCF_WDTR_DONE | TCF_BUSY);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2370) /* clr sync. nego & WDTR flags 07/22/98 */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2371)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2372) /* abort all SCB with same target */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2373) prev = tmp = host->first_busy; /* Check Busy queue */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2374) while (tmp != NULL) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2375) if (tmp->target == tar) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2376) /* unlink it */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2377) if (tmp == host->first_busy) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2378) if ((host->first_busy = tmp->next) == NULL)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2379) host->last_busy = NULL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2380) } else {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2381) prev->next = tmp->next;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2382) if (tmp == host->last_busy)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2383) host->last_busy = prev;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2384) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2385) tmp->hastat = HOST_ABORTED;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2386) initio_append_done_scb(host, tmp);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2387) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2388) /* Previous haven't change */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2389) else {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2390) prev = tmp;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2391) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2392) tmp = tmp->next;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2393) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2394) outb(MSG_DEVRST, host->addr + TUL_SFifo);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2395) outb(TSC_XF_FIFO_OUT, host->addr + TUL_SCmd);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2396) return initio_wait_disc(host);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2397)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2398) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2399)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2400) static int initio_msgin_accept(struct initio_host * host)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2401) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2402) outb(TSC_MSG_ACCEPT, host->addr + TUL_SCmd);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2403) return wait_tulip(host);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2404) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2405)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2406) static int wait_tulip(struct initio_host * host)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2407) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2408)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2409) while (!((host->jsstatus0 = inb(host->addr + TUL_SStatus0))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2410) & TSS_INT_PENDING))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2411) cpu_relax();
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2412)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2413) host->jsint = inb(host->addr + TUL_SInt);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2414) host->phase = host->jsstatus0 & TSS_PH_MASK;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2415) host->jsstatus1 = inb(host->addr + TUL_SStatus1);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2416)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2417) if (host->jsint & TSS_RESEL_INT) /* if SCSI bus reset detected */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2418) return int_initio_resel(host);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2419) if (host->jsint & TSS_SEL_TIMEOUT) /* if selected/reselected timeout interrupt */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2420) return int_initio_busfree(host);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2421) if (host->jsint & TSS_SCSIRST_INT) /* if SCSI bus reset detected */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2422) return int_initio_scsi_rst(host);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2423)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2424) if (host->jsint & TSS_DISC_INT) { /* BUS disconnection */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2425) if (host->flags & HCF_EXPECT_DONE_DISC) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2426) outb(TSC_FLUSH_FIFO, host->addr + TUL_SCtrl0); /* Flush SCSI FIFO */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2427) initio_unlink_busy_scb(host, host->active);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2428) host->active->hastat = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2429) initio_append_done_scb(host, host->active);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2430) host->active = NULL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2431) host->active_tc = NULL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2432) host->flags &= ~HCF_EXPECT_DONE_DISC;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2433) outb(TSC_INITDEFAULT, host->addr + TUL_SConfig);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2434) outb(TSC_HW_RESELECT, host->addr + TUL_SCtrl1); /* Enable HW reselect */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2435) return -1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2436) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2437) if (host->flags & HCF_EXPECT_DISC) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2438) outb(TSC_FLUSH_FIFO, host->addr + TUL_SCtrl0); /* Flush SCSI FIFO */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2439) host->active = NULL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2440) host->active_tc = NULL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2441) host->flags &= ~HCF_EXPECT_DISC;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2442) outb(TSC_INITDEFAULT, host->addr + TUL_SConfig);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2443) outb(TSC_HW_RESELECT, host->addr + TUL_SCtrl1); /* Enable HW reselect */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2444) return -1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2445) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2446) return int_initio_busfree(host);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2447) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2448) /* The old code really does the below. Can probably be removed */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2449) if (host->jsint & (TSS_FUNC_COMP | TSS_BUS_SERV))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2450) return host->phase;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2451) return host->phase;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2452) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2453)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2454) static int initio_wait_disc(struct initio_host * host)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2455) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2456) while (!((host->jsstatus0 = inb(host->addr + TUL_SStatus0)) & TSS_INT_PENDING))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2457) cpu_relax();
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2458)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2459) host->jsint = inb(host->addr + TUL_SInt);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2460)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2461) if (host->jsint & TSS_SCSIRST_INT) /* if SCSI bus reset detected */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2462) return int_initio_scsi_rst(host);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2463) if (host->jsint & TSS_DISC_INT) { /* BUS disconnection */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2464) outb(TSC_FLUSH_FIFO, host->addr + TUL_SCtrl0); /* Flush SCSI FIFO */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2465) outb(TSC_INITDEFAULT, host->addr + TUL_SConfig);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2466) outb(TSC_HW_RESELECT, host->addr + TUL_SCtrl1); /* Enable HW reselect */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2467) host->active = NULL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2468) return -1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2469) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2470) return initio_bad_seq(host);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2471) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2472)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2473) static int initio_wait_done_disc(struct initio_host * host)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2474) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2475) while (!((host->jsstatus0 = inb(host->addr + TUL_SStatus0))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2476) & TSS_INT_PENDING))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2477) cpu_relax();
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2478)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2479) host->jsint = inb(host->addr + TUL_SInt);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2480)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2481) if (host->jsint & TSS_SCSIRST_INT) /* if SCSI bus reset detected */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2482) return int_initio_scsi_rst(host);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2483) if (host->jsint & TSS_DISC_INT) { /* BUS disconnection */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2484) outb(TSC_FLUSH_FIFO, host->addr + TUL_SCtrl0); /* Flush SCSI FIFO */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2485) outb(TSC_INITDEFAULT, host->addr + TUL_SConfig);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2486) outb(TSC_HW_RESELECT, host->addr + TUL_SCtrl1); /* Enable HW reselect */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2487) initio_unlink_busy_scb(host, host->active);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2488)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2489) initio_append_done_scb(host, host->active);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2490) host->active = NULL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2491) return -1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2492) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2493) return initio_bad_seq(host);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2494) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2495)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2496) /**
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2497) * i91u_intr - IRQ handler
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2498) * @irqno: IRQ number
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2499) * @dev_id: IRQ identifier
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2500) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2501) * Take the relevant locks and then invoke the actual isr processing
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2502) * code under the lock.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2503) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2504)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2505) static irqreturn_t i91u_intr(int irqno, void *dev_id)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2506) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2507) struct Scsi_Host *dev = dev_id;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2508) unsigned long flags;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2509) int r;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2510)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2511) spin_lock_irqsave(dev->host_lock, flags);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2512) r = initio_isr((struct initio_host *)dev->hostdata);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2513) spin_unlock_irqrestore(dev->host_lock, flags);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2514) if (r)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2515) return IRQ_HANDLED;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2516) else
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2517) return IRQ_NONE;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2518) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2519)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2520)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2521) /**
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2522) * initio_build_scb - Build the mappings and SCB
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2523) * @host: InitIO host taking the command
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2524) * @cblk: Firmware command block
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2525) * @cmnd: SCSI midlayer command block
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2526) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2527) * Translate the abstract SCSI command into a firmware command block
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2528) * suitable for feeding to the InitIO host controller. This also requires
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2529) * we build the scatter gather lists and ensure they are mapped properly.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2530) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2531)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2532) static void initio_build_scb(struct initio_host * host, struct scsi_ctrl_blk * cblk, struct scsi_cmnd * cmnd)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2533) { /* Create corresponding SCB */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2534) struct scatterlist *sglist;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2535) struct sg_entry *sg; /* Pointer to SG list */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2536) int i, nseg;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2537) long total_len;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2538) dma_addr_t dma_addr;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2539)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2540) /* Fill in the command headers */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2541) cblk->post = i91uSCBPost; /* i91u's callback routine */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2542) cblk->srb = cmnd;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2543) cblk->opcode = ExecSCSI;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2544) cblk->flags = SCF_POST; /* After SCSI done, call post routine */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2545) cblk->target = cmnd->device->id;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2546) cblk->lun = cmnd->device->lun;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2547) cblk->ident = cmnd->device->lun | DISC_ALLOW;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2548)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2549) cblk->flags |= SCF_SENSE; /* Turn on auto request sense */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2550)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2551) /* Map the sense buffer into bus memory */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2552) dma_addr = dma_map_single(&host->pci_dev->dev, cmnd->sense_buffer,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2553) SENSE_SIZE, DMA_FROM_DEVICE);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2554) cblk->senseptr = (u32)dma_addr;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2555) cblk->senselen = SENSE_SIZE;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2556) cmnd->SCp.ptr = (char *)(unsigned long)dma_addr;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2557) cblk->cdblen = cmnd->cmd_len;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2558)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2559) /* Clear the returned status */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2560) cblk->hastat = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2561) cblk->tastat = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2562) /* Command the command */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2563) memcpy(cblk->cdb, cmnd->cmnd, cmnd->cmd_len);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2564)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2565) /* Set up tags */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2566) if (cmnd->device->tagged_supported) { /* Tag Support */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2567) cblk->tagmsg = SIMPLE_QUEUE_TAG; /* Do simple tag only */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2568) } else {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2569) cblk->tagmsg = 0; /* No tag support */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2570) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2571)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2572) /* todo handle map_sg error */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2573) nseg = scsi_dma_map(cmnd);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2574) BUG_ON(nseg < 0);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2575) if (nseg) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2576) dma_addr = dma_map_single(&host->pci_dev->dev, &cblk->sglist[0],
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2577) sizeof(struct sg_entry) * TOTAL_SG_ENTRY,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2578) DMA_BIDIRECTIONAL);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2579) cblk->bufptr = (u32)dma_addr;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2580) cmnd->SCp.dma_handle = dma_addr;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2581)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2582) cblk->sglen = nseg;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2583)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2584) cblk->flags |= SCF_SG; /* Turn on SG list flag */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2585) total_len = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2586) sg = &cblk->sglist[0];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2587) scsi_for_each_sg(cmnd, sglist, cblk->sglen, i) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2588) sg->data = cpu_to_le32((u32)sg_dma_address(sglist));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2589) sg->len = cpu_to_le32((u32)sg_dma_len(sglist));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2590) total_len += sg_dma_len(sglist);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2591) ++sg;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2592) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2593)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2594) cblk->buflen = (scsi_bufflen(cmnd) > total_len) ?
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2595) total_len : scsi_bufflen(cmnd);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2596) } else { /* No data transfer required */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2597) cblk->buflen = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2598) cblk->sglen = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2599) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2600) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2601)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2602) /**
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2603) * i91u_queuecommand - Queue a new command if possible
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2604) * @cmd: SCSI command block from the mid layer
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2605) * @done: Completion handler
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2606) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2607) * Attempts to queue a new command with the host adapter. Will return
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2608) * zero if successful or indicate a host busy condition if not (which
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2609) * will cause the mid layer to call us again later with the command)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2610) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2611)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2612) static int i91u_queuecommand_lck(struct scsi_cmnd *cmd,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2613) void (*done)(struct scsi_cmnd *))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2614) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2615) struct initio_host *host = (struct initio_host *) cmd->device->host->hostdata;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2616) struct scsi_ctrl_blk *cmnd;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2617)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2618) cmd->scsi_done = done;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2619)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2620) cmnd = initio_alloc_scb(host);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2621) if (!cmnd)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2622) return SCSI_MLQUEUE_HOST_BUSY;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2623)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2624) initio_build_scb(host, cmnd, cmd);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2625) initio_exec_scb(host, cmnd);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2626) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2627) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2628)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2629) static DEF_SCSI_QCMD(i91u_queuecommand)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2630)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2631) /**
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2632) * i91u_bus_reset - reset the SCSI bus
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2633) * @cmnd: Command block we want to trigger the reset for
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2634) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2635) * Initiate a SCSI bus reset sequence
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2636) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2637)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2638) static int i91u_bus_reset(struct scsi_cmnd * cmnd)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2639) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2640) struct initio_host *host;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2641)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2642) host = (struct initio_host *) cmnd->device->host->hostdata;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2643)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2644) spin_lock_irq(cmnd->device->host->host_lock);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2645) initio_reset_scsi(host, 0);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2646) spin_unlock_irq(cmnd->device->host->host_lock);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2647)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2648) return SUCCESS;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2649) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2650)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2651) /**
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2652) * i91u_biospararm - return the "logical geometry
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2653) * @sdev: SCSI device
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2654) * @dev; Matching block device
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2655) * @capacity: Sector size of drive
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2656) * @info_array: Return space for BIOS geometry
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2657) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2658) * Map the device geometry in a manner compatible with the host
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2659) * controller BIOS behaviour.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2660) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2661) * FIXME: limited to 2^32 sector devices.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2662) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2663)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2664) static int i91u_biosparam(struct scsi_device *sdev, struct block_device *dev,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2665) sector_t capacity, int *info_array)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2666) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2667) struct initio_host *host; /* Point to Host adapter control block */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2668) struct target_control *tc;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2669)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2670) host = (struct initio_host *) sdev->host->hostdata;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2671) tc = &host->targets[sdev->id];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2672)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2673) if (tc->heads) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2674) info_array[0] = tc->heads;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2675) info_array[1] = tc->sectors;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2676) info_array[2] = (unsigned long)capacity / tc->heads / tc->sectors;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2677) } else {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2678) if (tc->drv_flags & TCF_DRV_255_63) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2679) info_array[0] = 255;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2680) info_array[1] = 63;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2681) info_array[2] = (unsigned long)capacity / 255 / 63;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2682) } else {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2683) info_array[0] = 64;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2684) info_array[1] = 32;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2685) info_array[2] = (unsigned long)capacity >> 11;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2686) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2687) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2688)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2689) #if defined(DEBUG_BIOSPARAM)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2690) if (i91u_debug & debug_biosparam) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2691) printk("bios geometry: head=%d, sec=%d, cyl=%d\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2692) info_array[0], info_array[1], info_array[2]);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2693) printk("WARNING: check, if the bios geometry is correct.\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2694) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2695) #endif
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2696)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2697) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2698) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2699)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2700) /**
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2701) * i91u_unmap_scb - Unmap a command
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2702) * @pci_dev: PCI device the command is for
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2703) * @cmnd: The command itself
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2704) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2705) * Unmap any PCI mapping/IOMMU resources allocated when the command
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2706) * was mapped originally as part of initio_build_scb
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2707) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2708)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2709) static void i91u_unmap_scb(struct pci_dev *pci_dev, struct scsi_cmnd *cmnd)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2710) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2711) /* auto sense buffer */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2712) if (cmnd->SCp.ptr) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2713) dma_unmap_single(&pci_dev->dev,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2714) (dma_addr_t)((unsigned long)cmnd->SCp.ptr),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2715) SENSE_SIZE, DMA_FROM_DEVICE);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2716) cmnd->SCp.ptr = NULL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2717) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2718)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2719) /* request buffer */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2720) if (scsi_sg_count(cmnd)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2721) dma_unmap_single(&pci_dev->dev, cmnd->SCp.dma_handle,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2722) sizeof(struct sg_entry) * TOTAL_SG_ENTRY,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2723) DMA_BIDIRECTIONAL);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2724)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2725) scsi_dma_unmap(cmnd);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2726) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2727) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2728)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2729) /**
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2730) * i91uSCBPost - SCSI callback
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2731) * @host: Pointer to host adapter control block.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2732) * @cmnd: Pointer to SCSI control block.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2733) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2734) * This is callback routine be called when tulip finish one
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2735) * SCSI command.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2736) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2737)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2738) static void i91uSCBPost(u8 * host_mem, u8 * cblk_mem)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2739) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2740) struct scsi_cmnd *cmnd; /* Pointer to SCSI request block */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2741) struct initio_host *host;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2742) struct scsi_ctrl_blk *cblk;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2743)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2744) host = (struct initio_host *) host_mem;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2745) cblk = (struct scsi_ctrl_blk *) cblk_mem;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2746) if ((cmnd = cblk->srb) == NULL) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2747) printk(KERN_ERR "i91uSCBPost: SRB pointer is empty\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2748) WARN_ON(1);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2749) initio_release_scb(host, cblk); /* Release SCB for current channel */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2750) return;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2751) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2752)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2753) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2754) * Remap the firmware error status into a mid layer one
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2755) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2756) switch (cblk->hastat) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2757) case 0x0:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2758) case 0xa: /* Linked command complete without error and linked normally */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2759) case 0xb: /* Linked command complete without error interrupt generated */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2760) cblk->hastat = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2761) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2762)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2763) case 0x11: /* Selection time out-The initiator selection or target
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2764) reselection was not complete within the SCSI Time out period */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2765) cblk->hastat = DID_TIME_OUT;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2766) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2767)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2768) case 0x14: /* Target bus phase sequence failure-An invalid bus phase or bus
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2769) phase sequence was requested by the target. The host adapter
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2770) will generate a SCSI Reset Condition, notifying the host with
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2771) a SCRD interrupt */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2772) cblk->hastat = DID_RESET;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2773) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2774)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2775) case 0x1a: /* SCB Aborted. 07/21/98 */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2776) cblk->hastat = DID_ABORT;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2777) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2778)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2779) case 0x12: /* Data overrun/underrun-The target attempted to transfer more data
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2780) than was allocated by the Data Length field or the sum of the
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2781) Scatter / Gather Data Length fields. */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2782) case 0x13: /* Unexpected bus free-The target dropped the SCSI BSY at an unexpected time. */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2783) case 0x16: /* Invalid SCB Operation Code. */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2784)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2785) default:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2786) printk("ini9100u: %x %x\n", cblk->hastat, cblk->tastat);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2787) cblk->hastat = DID_ERROR; /* Couldn't find any better */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2788) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2789) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2790)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2791) cmnd->result = cblk->tastat | (cblk->hastat << 16);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2792) i91u_unmap_scb(host->pci_dev, cmnd);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2793) cmnd->scsi_done(cmnd); /* Notify system DONE */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2794) initio_release_scb(host, cblk); /* Release SCB for current channel */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2795) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2796)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2797) static struct scsi_host_template initio_template = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2798) .proc_name = "INI9100U",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2799) .name = "Initio INI-9X00U/UW SCSI device driver",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2800) .queuecommand = i91u_queuecommand,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2801) .eh_bus_reset_handler = i91u_bus_reset,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2802) .bios_param = i91u_biosparam,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2803) .can_queue = MAX_TARGETS * i91u_MAXQUEUE,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2804) .this_id = 1,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2805) .sg_tablesize = SG_ALL,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2806) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2807)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2808) static int initio_probe_one(struct pci_dev *pdev,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2809) const struct pci_device_id *id)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2810) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2811) struct Scsi_Host *shost;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2812) struct initio_host *host;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2813) u32 reg;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2814) u16 bios_seg;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2815) struct scsi_ctrl_blk *scb, *tmp, *prev = NULL /* silence gcc */;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2816) int num_scb, i, error;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2817)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2818) error = pci_enable_device(pdev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2819) if (error)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2820) return error;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2821)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2822) pci_read_config_dword(pdev, 0x44, (u32 *) & reg);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2823) bios_seg = (u16) (reg & 0xFF);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2824) if (((reg & 0xFF00) >> 8) == 0xFF)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2825) reg = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2826) bios_seg = (bios_seg << 8) + ((u16) ((reg & 0xFF00) >> 8));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2827)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2828) if (dma_set_mask(&pdev->dev, DMA_BIT_MASK(32))) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2829) printk(KERN_WARNING "i91u: Could not set 32 bit DMA mask\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2830) error = -ENODEV;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2831) goto out_disable_device;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2832) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2833) shost = scsi_host_alloc(&initio_template, sizeof(struct initio_host));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2834) if (!shost) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2835) printk(KERN_WARNING "initio: Could not allocate host structure.\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2836) error = -ENOMEM;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2837) goto out_disable_device;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2838) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2839) host = (struct initio_host *)shost->hostdata;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2840) memset(host, 0, sizeof(struct initio_host));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2841) host->addr = pci_resource_start(pdev, 0);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2842) host->bios_addr = bios_seg;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2843)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2844) if (!request_region(host->addr, 256, "i91u")) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2845) printk(KERN_WARNING "initio: I/O port range 0x%x is busy.\n", host->addr);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2846) error = -ENODEV;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2847) goto out_host_put;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2848) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2849)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2850) if (initio_tag_enable) /* 1.01i */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2851) num_scb = MAX_TARGETS * i91u_MAXQUEUE;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2852) else
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2853) num_scb = MAX_TARGETS + 3; /* 1-tape, 1-CD_ROM, 1- extra */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2854)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2855) for (; num_scb >= MAX_TARGETS + 3; num_scb--) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2856) i = num_scb * sizeof(struct scsi_ctrl_blk);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2857) if ((scb = kzalloc(i, GFP_DMA)) != NULL)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2858) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2859) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2860)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2861) if (!scb) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2862) printk(KERN_WARNING "initio: Cannot allocate SCB array.\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2863) error = -ENOMEM;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2864) goto out_release_region;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2865) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2866)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2867) host->pci_dev = pdev;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2868)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2869) host->semaph = 1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2870) spin_lock_init(&host->semaph_lock);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2871) host->num_scbs = num_scb;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2872) host->scb = scb;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2873) host->next_pending = scb;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2874) host->next_avail = scb;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2875) for (i = 0, tmp = scb; i < num_scb; i++, tmp++) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2876) tmp->tagid = i;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2877) if (i != 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2878) prev->next = tmp;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2879) prev = tmp;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2880) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2881) prev->next = NULL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2882) host->scb_end = tmp;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2883) host->first_avail = scb;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2884) host->last_avail = prev;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2885) spin_lock_init(&host->avail_lock);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2886)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2887) initio_init(host, phys_to_virt(((u32)bios_seg << 4)));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2888)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2889) host->jsstatus0 = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2890)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2891) shost->io_port = host->addr;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2892) shost->n_io_port = 0xff;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2893) shost->can_queue = num_scb; /* 03/05/98 */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2894) shost->unique_id = host->addr;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2895) shost->max_id = host->max_tar;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2896) shost->max_lun = 32; /* 10/21/97 */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2897) shost->irq = pdev->irq;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2898) shost->this_id = host->scsi_id; /* Assign HCS index */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2899) shost->base = host->addr;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2900) shost->sg_tablesize = TOTAL_SG_ENTRY;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2901)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2902) error = request_irq(pdev->irq, i91u_intr, IRQF_SHARED, "i91u", shost);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2903) if (error < 0) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2904) printk(KERN_WARNING "initio: Unable to request IRQ %d\n", pdev->irq);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2905) goto out_free_scbs;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2906) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2907)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2908) pci_set_drvdata(pdev, shost);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2909)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2910) error = scsi_add_host(shost, &pdev->dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2911) if (error)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2912) goto out_free_irq;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2913) scsi_scan_host(shost);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2914) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2915) out_free_irq:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2916) free_irq(pdev->irq, shost);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2917) out_free_scbs:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2918) kfree(host->scb);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2919) out_release_region:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2920) release_region(host->addr, 256);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2921) out_host_put:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2922) scsi_host_put(shost);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2923) out_disable_device:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2924) pci_disable_device(pdev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2925) return error;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2926) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2927)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2928) /**
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2929) * initio_remove_one - control shutdown
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2930) * @pdev: PCI device being released
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2931) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2932) * Release the resources assigned to this adapter after it has
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2933) * finished being used.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2934) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2935)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2936) static void initio_remove_one(struct pci_dev *pdev)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2937) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2938) struct Scsi_Host *host = pci_get_drvdata(pdev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2939) struct initio_host *s = (struct initio_host *)host->hostdata;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2940) scsi_remove_host(host);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2941) free_irq(pdev->irq, host);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2942) release_region(s->addr, 256);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2943) scsi_host_put(host);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2944) pci_disable_device(pdev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2945) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2946)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2947) MODULE_LICENSE("GPL");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2948)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2949) static struct pci_device_id initio_pci_tbl[] = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2950) {PCI_VENDOR_ID_INIT, 0x9500, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2951) {PCI_VENDOR_ID_INIT, 0x9400, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2952) {PCI_VENDOR_ID_INIT, 0x9401, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2953) {PCI_VENDOR_ID_INIT, 0x0002, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2954) {PCI_VENDOR_ID_DOMEX, 0x0002, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2955) {0,}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2956) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2957) MODULE_DEVICE_TABLE(pci, initio_pci_tbl);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2958)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2959) static struct pci_driver initio_pci_driver = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2960) .name = "initio",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2961) .id_table = initio_pci_tbl,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2962) .probe = initio_probe_one,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2963) .remove = initio_remove_one,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2964) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2965) module_pci_driver(initio_pci_driver);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2966)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2967) MODULE_DESCRIPTION("Initio INI-9X00U/UW SCSI device driver");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2968) MODULE_AUTHOR("Initio Corporation");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2969) MODULE_LICENSE("GPL");
Orange Pi5 kernel
Deprecated Linux kernel 5.10.110 for OrangePi 5/5B/5+ boards
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