1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
|
#include <linux/types.h>
#include <linux/string.h>
#include <linux/kernel.h>
#include <linux/interrupt.h>
#include <linux/ide.h>
#include <linux/bitops.h>
/**
* ide_toggle_bounce - handle bounce buffering
* @drive: drive to update
* @on: on/off boolean
*
* Enable or disable bounce buffering for the device. Drives move
* between PIO and DMA and that changes the rules we need.
*/
void ide_toggle_bounce(ide_drive_t *drive, int on)
{
u64 addr = BLK_BOUNCE_HIGH; /* dma64_addr_t */
if (!PCI_DMA_BUS_IS_PHYS) {
addr = BLK_BOUNCE_ANY;
} else if (on && drive->media == ide_disk) {
struct device *dev = drive->hwif->dev;
if (dev && dev->dma_mask)
addr = *dev->dma_mask;
}
if (drive->queue)
blk_queue_bounce_limit(drive->queue, addr);
}
static void ide_dump_opcode(ide_drive_t *drive)
{
struct request *rq = drive->hwif->rq;
struct ide_cmd *cmd = NULL;
if (!rq)
return;
if (rq->cmd_type == REQ_TYPE_ATA_TASKFILE)
cmd = rq->special;
printk(KERN_ERR "ide: failed opcode was: ");
if (cmd == NULL)
printk(KERN_CONT "unknown\n");
else
printk(KERN_CONT "0x%02x\n", cmd->tf.command);
}
u64 ide_get_lba_addr(struct ide_taskfile *tf, int lba48)
{
u32 high, low;
if (lba48)
high = (tf->hob_lbah << 16) | (tf->hob_lbam << 8) |
tf->hob_lbal;
else
high = tf->device & 0xf;
low = (tf->lbah << 16) | (tf->lbam << 8) | tf->lbal;
return ((u64)high << 24) | low;
}
EXPORT_SYMBOL_GPL(ide_get_lba_addr);
static void ide_dump_sector(ide_drive_t *drive)
{
struct ide_cmd cmd;
struct ide_taskfile *tf = &cmd.tf;
u8 lba48 = !!(drive->dev_flags & IDE_DFLAG_LBA48);
memset(&cmd, 0, sizeof(cmd));
if (lba48)
cmd.tf_flags = IDE_TFLAG_IN_LBA | IDE_TFLAG_IN_HOB_LBA |
IDE_TFLAG_LBA48;
else
cmd.tf_flags = IDE_TFLAG_IN_LBA | IDE_TFLAG_IN_DEVICE;
drive->hwif->tp_ops->tf_read(drive, &cmd);
if (lba48 || (tf->device & ATA_LBA))
printk(KERN_CONT ", LBAsect=%llu",
(unsigned long long)ide_get_lba_addr(tf, lba48));
else
printk(KERN_CONT ", CHS=%d/%d/%d", (tf->lbah << 8) + tf->lbam,
tf->device & 0xf, tf->lbal);
}
static void ide_dump_ata_error(ide_drive_t *drive, u8 err)
{
printk(KERN_ERR "{ ");
if (err & ATA_ABORTED)
printk(KERN_CONT "DriveStatusError ");
if (err & ATA_ICRC)
printk(KERN_CONT "%s",
(err & ATA_ABORTED) ? "BadCRC " : "BadSector ");
if (err & ATA_UNC)
printk(KERN_CONT "UncorrectableError ");
if (err & ATA_IDNF)
printk(KERN_CONT "SectorIdNotFound ");
if (err & ATA_TRK0NF)
printk(KERN_CONT "TrackZeroNotFound ");
if (err & ATA_AMNF)
printk(KERN_CONT "AddrMarkNotFound ");
printk(KERN_CONT "}");
if ((err & (ATA_BBK | ATA_ABORTED)) == ATA_BBK ||
(err & (ATA_UNC | ATA_IDNF | ATA_AMNF))) {
struct request *rq = drive->hwif->rq;
ide_dump_sector(drive);
if (rq)
printk(KERN_CONT ", sector=%llu",
(unsigned long long)rq->sector);
}
printk(KERN_CONT "\n");
}
static void ide_dump_atapi_error(ide_drive_t *drive, u8 err)
{
printk(KERN_ERR "{ ");
if (err & ATAPI_ILI)
printk(KERN_CONT "IllegalLengthIndication ");
if (err & ATAPI_EOM)
printk(KERN_CONT "EndOfMedia ");
if (err & ATA_ABORTED)
printk(KERN_CONT "AbortedCommand ");
if (err & ATA_MCR)
printk(KERN_CONT "MediaChangeRequested ");
if (err & ATAPI_LFS)
printk(KERN_CONT "LastFailedSense=0x%02x ",
(err & ATAPI_LFS) >> 4);
printk(KERN_CONT "}\n");
}
/**
* ide_dump_status - translate ATA/ATAPI error
* @drive: drive that status applies to
* @msg: text message to print
* @stat: status byte to decode
*
* Error reporting, in human readable form (luxurious, but a memory hog).
* Combines the drive name, message and status byte to provide a
* user understandable explanation of the device error.
*/
u8 ide_dump_status(ide_drive_t *drive, const char *msg, u8 stat)
{
u8 err = 0;
printk(KERN_ERR "%s: %s: status=0x%02x { ", drive->name, msg, stat);
if (stat & ATA_BUSY)
printk(KERN_CONT "Busy ");
else {
if (stat & ATA_DRDY)
printk(KERN_CONT "DriveReady ");
if (stat & ATA_DF)
printk(KERN_CONT "DeviceFault ");
if (stat & ATA_DSC)
printk(KERN_CONT "SeekComplete ");
if (stat & ATA_DRQ)
printk(KERN_CONT "DataRequest ");
if (stat & ATA_CORR)
printk(KERN_CONT "CorrectedError ");
if (stat & ATA_IDX)
printk(KERN_CONT "Index ");
if (stat & ATA_ERR)
printk(KERN_CONT "Error ");
}
printk(KERN_CONT "}\n");
if ((stat & (ATA_BUSY | ATA_ERR)) == ATA_ERR) {
err = ide_read_error(drive);
printk(KERN_ERR "%s: %s: error=0x%02x ", drive->name, msg, err);
if (drive->media == ide_disk)
ide_dump_ata_error(drive, err);
else
ide_dump_atapi_error(drive, err);
}
ide_dump_opcode(drive);
return err;
}
EXPORT_SYMBOL(ide_dump_status);
|
