patch-2.1.14 linux/drivers/scsi/eata.c
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- Lines: 613
- Date:
Sat Nov 23 15:28:50 1996
- Orig file:
v2.1.13/linux/drivers/scsi/eata.c
- Orig date:
Fri Nov 22 18:28:18 1996
diff -u --recursive --new-file v2.1.13/linux/drivers/scsi/eata.c linux/drivers/scsi/eata.c
@@ -1,6 +1,14 @@
/*
* eata.c - Low-level driver for EATA/DMA SCSI host adapters.
*
+ * 22 Nov 1996 rev. 2.30 for linux 2.1.12 and 2.0.26
+ * When CONFIG_PCI is defined, BIOS32 is used to include in the
+ * list of i/o ports to be probed all the PCI SCSI controllers.
+ * The list of i/o ports to be probed can be overwritten by the
+ * "eata=port0, port1,...." boot command line option.
+ * Scatter/gather lists are now allocated by a number of kmalloc
+ * calls, in order to avoid the previous size limit of 64Kb.
+ *
* 16 Nov 1996 rev. 2.20 for linux 2.1.10 and 2.0.25
* Added support for EATA 2.0C, PCI, multichannel and wide SCSI.
*
@@ -79,6 +87,11 @@
*
* Copyright (C) 1994, 1995, 1996 Dario Ballabio (dario@milano.europe.dg.com)
*
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that redistributions of source
+ * code retain the above copyright notice and this comment without
+ * modification.
+ *
*/
/*
@@ -103,9 +116,10 @@
* supported by this driver.
*
* This code has been tested with up to 3 Distributed Processing Technology
- * PM2122A/9X (DPT SCSI BIOS v002.D1, firmware v05E.0) eisa controllers,
+ * PM2122A/9X (DPT SCSI BIOS v002.D1, firmware v05E.0) EISA controllers,
* in any combination of private and shared IRQ.
- * PCI support has been tested using a DPT PM3224W (firmware v07G.0).
+ * PCI support has been tested using up to 2 DPT PM3224W (DPT SCSI BIOS
+ * v003.D0, firmware v07G.0).
*
* Multiple ISA, EISA and PCI boards can be configured in the same system.
* It is suggested to put all the EISA boards on the same IRQ level, all
@@ -116,16 +130,32 @@
* be _level_ triggered (not _edge_ triggered).
*
* This driver detects EATA boards by probes at fixed port addresses,
- * so no BIOS32 or PCI BIOS support is used or required.
+ * so no BIOS32 or PCI BIOS support is required.
* The suggested way to detect a generic EATA PCI board is to force on it
* any unused EISA address, even if there are other controllers on the EISA
* bus, or even if you system has no EISA bus at all.
* Do not force any ISA address on EATA PCI boards.
*
+ * If PCI bios support is configured into the kernel, BIOS32 is used to
+ * include in the list of i/o ports to be probed all the PCI SCSI controllers.
+ *
+ * Due to a DPT BIOS "feature", it might not be possible to force an EISA
+ * address on more then a single DPT PCI board, so in this case you have to
+ * let the PCI BIOS assign the addresses.
+ *
* The sequence of detection probes is:
+ *
* - ISA 0x1F0;
+ * - PCI SCSI controllers (only if BIOS32 is available);
* - EISA/PCI 0x1C88 through 0xFC88 (corresponding to EISA slots 1 to 15);
* - ISA 0x170, 0x230, 0x330.
+ *
+ * The above list of detection probes can be totally replaced by the
+ * boot command line option: "eata=port0, port1, port2,...", where the
+ * port0, port1... arguments are ISA/EISA/PCI addresses to be probed.
+ * For example using "eata=0x7410, 0x7450, 0x230", the driver probes
+ * only the two PCI addresses 0x7410 and 0x7450 and the ISA address 0x230,
+ * in this order; "eata=0" totally disables this driver.
*
* The boards are named EATA0, EATA1,... according to the detection order.
*
@@ -152,9 +182,11 @@
#include "sd.h"
#include <asm/dma.h>
#include <asm/irq.h>
-#include "linux/in.h"
#include "eata.h"
#include<linux/stat.h>
+#include<linux/config.h>
+#include<linux/bios32.h>
+#include<linux/pci.h>
struct proc_dir_entry proc_scsi_eata2x = {
PROC_SCSI_EATA2X, 6, "eata2x",
@@ -172,17 +204,22 @@
#undef DEBUG_STATISTICS
#undef DEBUG_RESET
+#define MAX_ISA 4
+#define MAX_VESA 0
+#define MAX_EISA 15
+#define MAX_PCI 16
+#define MAX_BOARDS (MAX_ISA + MAX_VESA + MAX_EISA + MAX_PCI)
#define MAX_CHANNEL 4
#define MAX_LUN 32
#define MAX_TARGET 32
#define MAX_IRQ 16
-#define MAX_BOARDS 18
#define MAX_MAILBOXES 64
#define MAX_SGLIST 64
#define MAX_LARGE_SGLIST 252
#define MAX_INTERNAL_RETRIES 64
#define MAX_CMD_PER_LUN 2
+#define SKIP 1
#define FALSE 0
#define TRUE 1
#define FREE 0
@@ -190,7 +227,6 @@
#define LOCKED 2
#define IN_RESET 3
#define IGNORE 4
-#define NO_IRQ 0xff
#define NO_DMA 0xff
#define MAXLOOP 200000
@@ -205,7 +241,8 @@
#define REG_MID 4
#define REG_MSB 5
#define REGION_SIZE 9
-#define EISA_RANGE 0x1000
+#define ISA_RANGE 0x0fff
+#define EISA_RANGE 0xfc88
#define BSY_ASSERTED 0x80
#define DRQ_ASSERTED 0x08
#define ABSY_ASSERTED 0x01
@@ -261,13 +298,18 @@
/* Structure extension defined in EATA 2.0B */
unchar isaena:1, /* ISA i/o addressing is disabled/enabled */
forcaddr:1, /* Port address has been forced */
- :6;
+ large_sg:1, /* 1 if large SG lists are supported */
+ res1:1,
+ :4;
unchar max_id:5, /* Max SCSI target ID number */
max_chan:3; /* Max SCSI channel number on this board */
/* Structure extension defined in EATA 2.0C */
unchar max_lun; /* Max SCSI LUN number */
- unchar notused[3];
+ unchar :6,
+ pci:1, /* This board is PCI */
+ eisa:1; /* This board is EISA */
+ unchar notused[2];
ushort ipad[247];
};
@@ -294,6 +336,11 @@
char mess[12];
};
+struct sg_list {
+ unsigned int address; /* Segment Address */
+ unsigned int num_bytes; /* Segment Length */
+ };
+
/* MailBox SCSI Command Packet */
struct mscp {
unchar sreset:1, /* SCSI Bus Reset Signal should be asserted */
@@ -317,17 +364,12 @@
unchar mess[3]; /* Massage to/from Target */
unchar cdb[12]; /* Command Descriptor Block */
ulong data_len; /* If sg=0 Data Length, if sg=1 sglist length */
- Scsi_Cmnd *SCpnt; /* Address to be returned is sp */
+ Scsi_Cmnd *SCpnt; /* Address to be returned in sp */
ulong data_address; /* If sg=0 Data Address, if sg=1 sglist address */
ulong sp_addr; /* Address where sp is DMA'ed when cp completes */
ulong sense_addr; /* Address where Sense Data is DMA'ed on error */
-
- struct sg_list {
- unsigned int address; /* Segment Address */
- unsigned int num_bytes; /* Segment Length */
- } sglist[MAX_SGLIST];
-
unsigned int index; /* cp index */
+ struct sg_list *sglist;
};
struct hostdata {
@@ -353,6 +395,26 @@
static const char *driver_name = "EATA";
static unsigned int irqlist[MAX_IRQ], calls[MAX_IRQ];
+static unsigned int io_port[MAX_BOARDS + 1] = {
+
+ /* First ISA */
+ 0x1f0,
+
+ /* Space for MAX_PCI ports possibly reported by PCI_BIOS */
+ SKIP, SKIP, SKIP, SKIP, SKIP, SKIP, SKIP, SKIP,
+ SKIP, SKIP, SKIP, SKIP, SKIP, SKIP, SKIP, SKIP,
+
+ /* MAX_EISA ports */
+ 0x1c88, 0x2c88, 0x3c88, 0x4c88, 0x5c88, 0x6c88, 0x7c88, 0x8c88,
+ 0x9c88, 0xac88, 0xbc88, 0xcc88, 0xdc88, 0xec88, 0xfc88,
+
+ /* Other (MAX_ISA - 1) ports */
+ 0x170, 0x230, 0x330,
+
+ /* End of list */
+ 0x0
+ };
+
#define HD(board) ((struct hostdata *) &sh[board]->hostdata)
#define BN(board) (HD(board)->board_name)
@@ -363,6 +425,7 @@
static void eata2x_interrupt_handler(int, void *, struct pt_regs *);
static int do_trace = FALSE;
+static int setup_done = FALSE;
static inline int wait_on_busy(unsigned int iobase) {
unsigned int loop = MAXLOOP;
@@ -404,11 +467,12 @@
return FALSE;
}
-static inline int port_detect(unsigned int *port_base, unsigned int j,
+static inline int port_detect(unsigned int port_base, unsigned int j,
Scsi_Host_Template *tpnt) {
- unsigned char irq, dma_channel, subversion, c;
+ unsigned char irq, dma_channel, subversion, i;
unsigned char protocol_rev;
struct eata_info info;
+ char *bus_type;
/* Allowed DMA channels for ISA (0 indicates reserved) */
unsigned char dma_channel_table[4] = { 5, 6, 7, 0 };
@@ -417,16 +481,15 @@
sprintf(name, "%s%d", driver_name, j);
- if(check_region(*port_base, REGION_SIZE)) {
- printk("%s: address 0x%03x in use, skipping probe.\n",
- name, *port_base);
+ if(check_region(port_base, REGION_SIZE)) {
+ printk("%s: address 0x%03x in use, skipping probe.\n", name, port_base);
return FALSE;
}
- if (do_dma(*port_base, 0, READ_CONFIG_PIO)) return FALSE;
+ if (do_dma(port_base, 0, READ_CONFIG_PIO)) return FALSE;
/* Read the info structure */
- if (read_pio(*port_base, (ushort *)&info, (ushort *)&info.ipad[0]))
+ if (read_pio(port_base, (ushort *)&info, (ushort *)&info.ipad[0]))
return FALSE;
/* Check the controller "EATA" signature */
@@ -446,7 +509,7 @@
irq = info.irq;
- if (*port_base >= EISA_RANGE) {
+ if (port_base > ISA_RANGE) {
if (!info.haaval || info.ata || info.drqvld) {
printk("%s: unusable EISA/PCI board found (%d%d%d), detaching.\n",
@@ -477,8 +540,8 @@
name, irq);
/* Board detected, allocate its IRQ if not already done */
- if ((irq >= MAX_IRQ) || ((irqlist[irq] == NO_IRQ) && request_irq
- (irq, eata2x_interrupt_handler, SA_INTERRUPT, driver_name, NULL))) {
+ if ((irq >= MAX_IRQ) || (!irqlist[irq] && request_irq(irq,
+ eata2x_interrupt_handler, SA_INTERRUPT, driver_name, NULL))) {
printk("%s: unable to allocate IRQ %u, detaching.\n", name, irq);
return FALSE;
}
@@ -499,7 +562,7 @@
config.len = (ushort) htons((ushort)510);
config.ocena = TRUE;
- if (do_dma(*port_base, (unsigned int)&config, SET_CONFIG_DMA)) {
+ if (do_dma(port_base, (unsigned int)&config, SET_CONFIG_DMA)) {
printk("%s: busy timeout sending configuration, detaching.\n", name);
return FALSE;
}
@@ -511,15 +574,15 @@
if (sh[j] == NULL) {
printk("%s: unable to register host, detaching.\n", name);
- if (irqlist[irq] == NO_IRQ) free_irq(irq, NULL);
+ if (!irqlist[irq]) free_irq(irq, NULL);
if (subversion == ISA) free_dma(dma_channel);
return FALSE;
}
- sh[j]->io_port = *port_base;
- sh[j]->unique_id = *port_base;
+ sh[j]->io_port = port_base;
+ sh[j]->unique_id = port_base;
sh[j]->n_io_port = REGION_SIZE;
sh[j]->dma_channel = dma_channel;
sh[j]->irq = irq;
@@ -529,13 +592,13 @@
sh[j]->cmd_per_lun = MAX_CMD_PER_LUN;
/* Register the I/O space that we use */
- request_region(sh[j]->io_port, REGION_SIZE, driver_name);
+ request_region(sh[j]->io_port, sh[j]->n_io_port, driver_name);
memset(HD(j), 0, sizeof(struct hostdata));
HD(j)->subversion = subversion;
HD(j)->protocol_rev = protocol_rev;
HD(j)->board_number = j;
- irqlist[irq] = j;
+ irqlist[irq]++;
if (HD(j)->subversion == ESA)
sh[j]->unchecked_isa_dma = FALSE;
@@ -548,66 +611,138 @@
enable_dma(dma_channel);
}
- if (protocol_rev != 'A' && info.max_chan > 0 && info.max_chan < MAX_CHANNEL)
- sh[j]->max_channel = info.max_chan;
-
- if (protocol_rev != 'A' && info.max_id > 7 && info.max_id < MAX_TARGET)
- sh[j]->max_id = info.max_id + 1;
-
- if (protocol_rev == 'C' && info.max_lun > 7 && info.max_lun < MAX_LUN)
- sh[j]->max_lun = info.max_lun + 1;
-
strcpy(BN(j), name);
- printk("%s: rev. 2.0%c, PORT 0x%03x, IRQ %u, DMA %u, SG %d, "\
- "Mbox %d, CmdLun %d.\n", BN(j), HD(j)->protocol_rev,
- sh[j]->io_port, sh[j]->irq, sh[j]->dma_channel,
- sh[j]->sg_tablesize, sh[j]->can_queue, sh[j]->cmd_per_lun);
-
/* DPT PM2012 does not allow to detect sg_tablesize correctly */
if (sh[j]->sg_tablesize > MAX_SGLIST || sh[j]->sg_tablesize < 2) {
- printk("%s: detect, forcing to use %d SG lists.\n", BN(j), MAX_SGLIST);
+ printk("%s: detect, wrong n. of SG lists %d, fixed.\n",
+ BN(j), sh[j]->sg_tablesize);
sh[j]->sg_tablesize = MAX_SGLIST;
}
/* DPT PM2012 does not allow to detect can_queue correctly */
if (sh[j]->can_queue > MAX_MAILBOXES || sh[j]->can_queue < 2) {
- printk("%s: detect, forcing to use %d Mbox.\n", BN(j), MAX_MAILBOXES);
+ printk("%s: detect, wrong n. of Mbox %d, fixed.\n",
+ BN(j), sh[j]->can_queue);
sh[j]->can_queue = MAX_MAILBOXES;
}
+ if (protocol_rev != 'A') {
+
+ if (info.max_chan > 0 && info.max_chan < MAX_CHANNEL)
+ sh[j]->max_channel = info.max_chan;
+
+ if (info.max_id > 7 && info.max_id < MAX_TARGET)
+ sh[j]->max_id = info.max_id + 1;
+
+ if (info.large_sg && sh[j]->sg_tablesize == MAX_SGLIST)
+ sh[j]->sg_tablesize = MAX_LARGE_SGLIST;
+ }
+
+ if (protocol_rev == 'C') {
+
+ if (info.max_lun > 7 && info.max_lun < MAX_LUN)
+ sh[j]->max_lun = info.max_lun + 1;
+ }
+
+ if (subversion == ESA && protocol_rev == 'C' && info.pci) bus_type = "PCI";
+ else if (sh[j]->io_port > EISA_RANGE) bus_type = "PCI";
+ else if (subversion == ESA) bus_type = "EISA";
+ else bus_type = "ISA";
+
+ for (i = 0; i < sh[j]->can_queue; i++)
+ if (! ((&HD(j)->cp[i])->sglist = kmalloc(
+ sh[j]->sg_tablesize * sizeof(struct sg_list),
+ (sh[j]->unchecked_isa_dma ? GFP_DMA : 0) | GFP_ATOMIC))) {
+ printk("%s: kmalloc SGlist failed, mbox %d, detaching.\n", BN(j), i);
+ eata2x_release(sh[j]);
+ return FALSE;
+ }
+
+ printk("%s: rev. 2.0%c, %s, PORT 0x%03x, IRQ %u, DMA %u, SG %d, "\
+ "Mbox %d, CmdLun %d.\n", BN(j), HD(j)->protocol_rev, bus_type,
+ sh[j]->io_port, sh[j]->irq, sh[j]->dma_channel,
+ sh[j]->sg_tablesize, sh[j]->can_queue, sh[j]->cmd_per_lun);
+
if (sh[j]->max_id > 8 || sh[j]->max_lun > 8)
printk("%s: wide SCSI support enabled, max_id %u, max_lun %u.\n",
BN(j), sh[j]->max_id, sh[j]->max_lun);
- for (c = 0; c <= sh[j]->max_channel; c++)
+ for (i = 0; i <= sh[j]->max_channel; i++)
printk("%s: SCSI channel %u enabled, host target ID %u.\n",
- BN(j), c, info.host_addr[3 - c]);
+ BN(j), i, info.host_addr[3 - i]);
#if defined (DEBUG_DETECT)
- if (protocol_rev != 'A')
- printk("%s: EATA 2.0%c, isaena %u, forcaddr %u, max_id %u,"\
- " max_chan %u, max_lun %u.\n", name, protocol_rev, info.isaena,
- info.forcaddr, info.max_id, info.max_chan, info.max_lun);
-
- printk("%s: Vers. 0x%x, SYNC 0x%x, sec. %u, infol %ld, cpl %ld spl %ld.\n",
- name, info.version, info.sync, info.second, DEV2H(info.data_len),
- DEV2H(info.cp_len), DEV2H(info.sp_len));
+ printk("%s: Vers. 0x%x, ocs %u, tar %u, SYNC 0x%x, sec. %u, "\
+ "infol %ld, cpl %ld spl %ld.\n", name, info.version,
+ info.ocsena, info.tarsup, info.sync, info.second,
+ DEV2H(info.data_len), DEV2H(info.cp_len), DEV2H(info.sp_len));
+
+ if (protocol_rev == 'B' || protocol_rev == 'C')
+ printk("%s: isaena %u, forcaddr %u, max_id %u, max_chan %u, "\
+ "large_sg %u, res1 %u.\n", name, info.isaena, info.forcaddr,
+ info.max_id, info.max_chan, info.large_sg, info.res1);
+
+ if (protocol_rev == 'C')
+ printk("%s: max_lun %u, pci %u, eisa %u.\n", name,
+ info.max_lun, info.pci, info.eisa);
#endif
return TRUE;
}
-int eata2x_detect(Scsi_Host_Template *tpnt) {
- unsigned int j = 0, k, flags;
+void eata2x_setup(char *str, int *ints) {
+ int i, argc = ints[0];
- unsigned int io_port[] = {
- 0x1f0, 0x1c88, 0x2c88, 0x3c88, 0x4c88, 0x5c88, 0x6c88, 0x7c88,
- 0x8c88, 0x9c88, 0xac88, 0xbc88, 0xcc88, 0xdc88, 0xec88, 0xfc88,
- 0x170, 0x230, 0x330, 0x0
- };
+ if (argc <= 0) return;
- unsigned int *port_base = io_port;
+ if (argc > MAX_BOARDS) argc = MAX_BOARDS;
+
+ for (i = 0; i < argc; i++) io_port[i] = ints[i + 1];
+
+ io_port[i] = 0;
+ setup_done = TRUE;
+ return;
+}
+
+static void add_pci_ports(void) {
+
+#if defined(CONFIG_PCI)
+
+ unsigned short i = 0;
+ unsigned char bus, devfn;
+ unsigned int addr, k;
+
+ if (!pcibios_present()) return;
+
+ for (k = 0; k < MAX_PCI; k++) {
+
+ if (pcibios_find_class(PCI_CLASS_STORAGE_SCSI << 8, i++, &bus, &devfn)
+ != PCIBIOS_SUCCESSFUL) break;
+
+ if (pcibios_read_config_dword(bus, devfn, PCI_BASE_ADDRESS_0, &addr)
+ != PCIBIOS_SUCCESSFUL) continue;
+
+#if defined(DEBUG_DETECT)
+ printk("%s: detect, seq. %d, bus %d, devfn 0x%x, addr 0x%x.\n",
+ driver_name, k, bus, devfn, addr);
+#endif
+
+ if ((addr & PCI_BASE_ADDRESS_SPACE) != PCI_BASE_ADDRESS_SPACE_IO)
+ continue;
+
+ /* Reverse the returned address order */
+ io_port[MAX_PCI - k] =
+ (addr & PCI_BASE_ADDRESS_IO_MASK) + PCI_BASE_ADDRESS_0;
+ }
+#endif
+
+ return;
+}
+
+int eata2x_detect(Scsi_Host_Template *tpnt) {
+ unsigned long flags;
+ unsigned int j = 0, k;
tpnt->proc_dir = &proc_scsi_eata2x;
@@ -615,17 +750,19 @@
cli();
for (k = 0; k < MAX_IRQ; k++) {
- irqlist[k] = NO_IRQ;
+ irqlist[k] = 0;
calls[k] = 0;
}
for (k = 0; k < MAX_BOARDS + 1; k++) sh[k] = NULL;
- while (*port_base) {
+ if (!setup_done) add_pci_ports();
- if (j < MAX_BOARDS && port_detect(port_base, j, tpnt)) j++;
+ for (k = 0; io_port[k]; k++) {
- port_base++;
+ if (io_port[k] == SKIP) continue;
+
+ if (j < MAX_BOARDS && port_detect(io_port[k], j, tpnt)) j++;
}
if (j > 0)
@@ -651,7 +788,8 @@
}
int eata2x_queuecommand(Scsi_Cmnd *SCpnt, void (*done)(Scsi_Cmnd *)) {
- unsigned int i, j, k, flags;
+ unsigned long flags;
+ unsigned int i, j, k;
struct mscp *cpp;
struct mssp *spp;
@@ -702,7 +840,7 @@
/* Set pointer to control packet structure */
cpp = &HD(j)->cp[i];
- memset(cpp, 0, sizeof(struct mscp));
+ memset(cpp, 0, sizeof(struct mscp) - sizeof(struct sg_list *));
/* Set pointer to status packet structure */
spp = &HD(j)->sp[i];
@@ -766,7 +904,8 @@
}
int eata2x_abort(Scsi_Cmnd *SCarg) {
- unsigned int i, j, flags;
+ unsigned long flags;
+ unsigned int i, j;
save_flags(flags);
cli();
@@ -805,6 +944,9 @@
panic("%s: abort, mbox %d, SCarg %p, cp SCpnt %p.\n",
BN(j), i, SCarg, HD(j)->cp[i].SCpnt);
+ if (inb(sh[j]->io_port + REG_AUX_STATUS) & IRQ_ASSERTED)
+ printk("%s: abort, mbox %d, interrupt pending.\n", BN(j), i);
+
restore_flags(flags);
return SCSI_ABORT_SNOOZE;
}
@@ -825,7 +967,8 @@
}
int eata2x_reset(Scsi_Cmnd *SCarg, unsigned int reset_flags) {
- unsigned int i, j, flags, time, k, c, limit = 0;
+ unsigned long flags;
+ unsigned int i, j, time, k, c, limit = 0;
int arg_done = FALSE;
Scsi_Cmnd *SCpnt;
@@ -944,14 +1087,15 @@
static void eata2x_interrupt_handler(int irq, void *dev_id,
struct pt_regs *regs) {
Scsi_Cmnd *SCpnt;
- unsigned int i, j, k, c, flags, status, tstatus, loops, total_loops = 0;
+ unsigned long flags;
+ unsigned int i, j, k, c, status, tstatus, loops, total_loops = 0;
struct mssp *spp;
struct mscp *cpp;
save_flags(flags);
cli();
- if (irqlist[irq] == NO_IRQ) {
+ if (!irqlist[irq]) {
printk("%s, ihdlr, irq %d, unexpected interrupt.\n", driver_name, irq);
restore_flags(flags);
return;
@@ -1158,6 +1302,31 @@
restore_flags(flags);
return;
+}
+
+int eata2x_release(struct Scsi_Host *shpnt) {
+ unsigned long flags;
+ unsigned int i, j;
+
+ save_flags(flags);
+ cli();
+
+ for (j = 0; sh[j] != NULL && sh[j] != shpnt; j++);
+
+ if (sh[j] == NULL) panic("%s: release, invalid Scsi_Host pointer.\n",
+ driver_name);
+
+ for (i = 0; i < sh[j]->can_queue; i++)
+ if ((&HD(j)->cp[i])->sglist) kfree((&HD(j)->cp[i])->sglist);
+
+ if (! --irqlist[sh[j]->irq]) free_irq(sh[j]->irq, NULL);
+
+ if (sh[j]->dma_channel != NO_DMA) free_dma(sh[j]->dma_channel);
+
+ release_region(sh[j]->io_port, sh[j]->n_io_port);
+ scsi_unregister(sh[j]);
+ restore_flags(flags);
+ return FALSE;
}
#if defined(MODULE)
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