[SCSI] eata_pio: Clean up proc handling, bracketing and use cpu_relax()
So its ancient, its crap, but it kept showing up in my scans for stuff that wanted fixing... - Redo the proc code to be far cleaner - Clean various return (0) type constructs - Use cpu_relax() The various waits ought to time out but thats another issue and probably not worth solving. Signed-off-by: Alan Cox <alan@redhat.com> Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
This commit is contained in:
parent
f72abc2110
commit
1a1d641490
1 changed files with 39 additions and 49 deletions
|
@ -107,41 +107,26 @@ static struct scsi_host_template driver_template;
|
|||
static int eata_pio_proc_info(struct Scsi_Host *shost, char *buffer, char **start, off_t offset,
|
||||
int length, int rw)
|
||||
{
|
||||
static u8 buff[512];
|
||||
int size, len = 0;
|
||||
int len = 0;
|
||||
off_t begin = 0, pos = 0;
|
||||
|
||||
if (rw)
|
||||
return -ENOSYS;
|
||||
if (offset == 0)
|
||||
memset(buff, 0, sizeof(buff));
|
||||
|
||||
size = sprintf(buffer+len, "EATA (Extended Attachment) PIO driver version: "
|
||||
len += sprintf(buffer+len, "EATA (Extended Attachment) PIO driver version: "
|
||||
"%d.%d%s\n",VER_MAJOR, VER_MINOR, VER_SUB);
|
||||
len += size; pos = begin + len;
|
||||
size = sprintf(buffer + len, "queued commands: %10ld\n"
|
||||
len += sprintf(buffer + len, "queued commands: %10ld\n"
|
||||
"processed interrupts:%10ld\n", queue_counter, int_counter);
|
||||
len += size; pos = begin + len;
|
||||
|
||||
size = sprintf(buffer + len, "\nscsi%-2d: HBA %.10s\n",
|
||||
len += sprintf(buffer + len, "\nscsi%-2d: HBA %.10s\n",
|
||||
shost->host_no, SD(shost)->name);
|
||||
len += size;
|
||||
pos = begin + len;
|
||||
size = sprintf(buffer + len, "Firmware revision: v%s\n",
|
||||
len += sprintf(buffer + len, "Firmware revision: v%s\n",
|
||||
SD(shost)->revision);
|
||||
len += size;
|
||||
pos = begin + len;
|
||||
size = sprintf(buffer + len, "IO: PIO\n");
|
||||
len += size;
|
||||
pos = begin + len;
|
||||
size = sprintf(buffer + len, "Base IO : %#.4x\n", (u32) shost->base);
|
||||
len += size;
|
||||
pos = begin + len;
|
||||
size = sprintf(buffer + len, "Host Bus: %s\n",
|
||||
len += sprintf(buffer + len, "IO: PIO\n");
|
||||
len += sprintf(buffer + len, "Base IO : %#.4x\n", (u32) shost->base);
|
||||
len += sprintf(buffer + len, "Host Bus: %s\n",
|
||||
(SD(shost)->bustype == 'P')?"PCI ":
|
||||
(SD(shost)->bustype == 'E')?"EISA":"ISA ");
|
||||
|
||||
len += size;
|
||||
pos = begin + len;
|
||||
|
||||
if (pos < offset) {
|
||||
|
@ -151,15 +136,15 @@ static int eata_pio_proc_info(struct Scsi_Host *shost, char *buffer, char **star
|
|||
if (pos > offset + length)
|
||||
goto stop_output;
|
||||
|
||||
stop_output:
|
||||
stop_output:
|
||||
DBG(DBG_PROC, printk("2pos: %ld offset: %ld len: %d\n", pos, offset, len));
|
||||
*start=buffer+(offset-begin); /* Start of wanted data */
|
||||
len-=(offset-begin); /* Start slop */
|
||||
if(len>length)
|
||||
*start = buffer + (offset - begin); /* Start of wanted data */
|
||||
len -= (offset - begin); /* Start slop */
|
||||
if (len > length)
|
||||
len = length; /* Ending slop */
|
||||
DBG(DBG_PROC, printk("3pos: %ld offset: %ld len: %d\n", pos, offset, len));
|
||||
|
||||
return (len);
|
||||
return len;
|
||||
}
|
||||
|
||||
static int eata_pio_release(struct Scsi_Host *sh)
|
||||
|
@ -438,7 +423,7 @@ static int eata_pio_queue(struct scsi_cmnd *cmd,
|
|||
"returning DID_BUS_BUSY, done.\n", cmd->pid);
|
||||
done(cmd);
|
||||
cp->status = FREE;
|
||||
return (0);
|
||||
return 0;
|
||||
}
|
||||
/* FIXME: timeout */
|
||||
while (!(inb(base + HA_RSTATUS) & HA_SDRQ))
|
||||
|
@ -452,7 +437,7 @@ static int eata_pio_queue(struct scsi_cmnd *cmd,
|
|||
"Queued base %#.4lx pid: %ld "
|
||||
"slot %d irq %d\n", sh->base, cmd->pid, y, sh->irq));
|
||||
|
||||
return (0);
|
||||
return 0;
|
||||
}
|
||||
|
||||
static int eata_pio_abort(struct scsi_cmnd *cmd)
|
||||
|
@ -589,23 +574,28 @@ static char *get_pio_board_data(unsigned long base, unsigned int irq, unsigned i
|
|||
cp.cp_cdb[5] = 0;
|
||||
|
||||
if (eata_pio_send_command(base, EATA_CMD_PIO_SEND_CP))
|
||||
return (NULL);
|
||||
while (!(inb(base + HA_RSTATUS) & HA_SDRQ));
|
||||
return NULL;
|
||||
|
||||
while (!(inb(base + HA_RSTATUS) & HA_SDRQ))
|
||||
cpu_relax();
|
||||
|
||||
outsw(base + HA_RDATA, &cp, cplen);
|
||||
outb(EATA_CMD_PIO_TRUNC, base + HA_WCOMMAND);
|
||||
for (z = 0; z < cppadlen; z++)
|
||||
outw(0, base + HA_RDATA);
|
||||
|
||||
while (inb(base + HA_RSTATUS) & HA_SBUSY);
|
||||
while (inb(base + HA_RSTATUS) & HA_SBUSY)
|
||||
cpu_relax();
|
||||
|
||||
if (inb(base + HA_RSTATUS) & HA_SERROR)
|
||||
return (NULL);
|
||||
return NULL;
|
||||
else if (!(inb(base + HA_RSTATUS) & HA_SDRQ))
|
||||
return (NULL);
|
||||
return NULL;
|
||||
else {
|
||||
insw(base + HA_RDATA, &buff, 127);
|
||||
while (inb(base + HA_RSTATUS) & HA_SDRQ)
|
||||
inw(base + HA_RDATA);
|
||||
return (buff);
|
||||
return buff;
|
||||
}
|
||||
}
|
||||
|
||||
|
|
Reference in a new issue