sanchayanmaity/minix
1
0
Fork 0
Code Issues Pull requests Packages Projects Releases Wiki Activity

use shorter ata timeout for identify commands when running from cd

Browse source 
to shorten probe time.
This commit is contained in:
Ben Gras 2007-02-09 15:58:33 +00:00
parent 304471a107
commit c6f8154df0
2 changed files with 34 additions and 8 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

40
drivers/at_wini/at_wini.c
View file

@ -218,7 +218,8 @@ struct command {
#define ERR_BAD_SECTOR (-2) /* block marked bad detected */
/* Some controllers don't interrupt, the clock will wake us up. */
#define WAKEUP (32*HZ) /* drive may be out for 31 seconds max */
#define WAKEUP_SECS 32 /* drive may be out for 31 seconds max */
#define WAKEUP_TICKS (WAKEUP_SECS*HZ)
/* Miscellaneous. */
#define MAX_DRIVES 8
@ -250,9 +251,9 @@ struct command {
/* Timeouts and max retries. */
int timeout_ticks = DEF_TIMEOUT_TICKS, max_errors = MAX_ERRORS;
int wakeup_ticks = WAKEUP;
long w_standard_timeouts = 0, w_pci_debug = 0, w_instance = 0,
disable_dma = 0, atapi_debug = 0;
disable_dma = 0, atapi_debug = 0, w_identify_wakeup_ticks = WAKEUP_TICKS,
wakeup_ticks = WAKEUP_TICKS;
int w_testing = 0, w_silent = 0;
@ -342,7 +343,7 @@ FORWARD _PROTOTYPE( void init_drive, (struct wini *w, int base_cmd,
FORWARD _PROTOTYPE( void init_params_pci, (int) );
FORWARD _PROTOTYPE( int w_do_open, (struct driver *dp, message *m_ptr) );
FORWARD _PROTOTYPE( struct device *w_prepare, (int dev) );
FORWARD _PROTOTYPE( int w_identify, (void) );
FORWARD _PROTOTYPE( int w_identify, (void) );
FORWARD _PROTOTYPE( char *w_name, (void) );
FORWARD _PROTOTYPE( int w_specify, (void) );
FORWARD _PROTOTYPE( int w_io_test, (void) );
@ -426,14 +427,24 @@ PRIVATE void init_params()
struct wini *wn;
u8_t params[16];
int s;
long wakeup_secs;
/* Boot variables. */
env_parse("ata_std_timeout", "d", 0, &w_standard_timeouts, 0, 1);
env_parse("ata_pci_debug", "d", 0, &w_pci_debug, 0, 1);
env_parse("ata_instance", "d", 0, &w_instance, 0, 8);
env_parse("ata_no_dma", "d", 0, &disable_dma, 0, 1);
env_parse("ata_id_timeout", "d", 0, &wakeup_secs, 1, 60);
env_parse("atapi_debug", "d", 0, &atapi_debug, 0, 1);
w_identify_wakeup_ticks = wakeup_secs * HZ;
if(w_identify_wakeup_ticks <= 0) {
printf("changing wakeup from %d to %d ticks.\n",
w_identify_wakeup_ticks, WAKEUP_TICKS);
w_identify_wakeup_ticks = WAKEUP_TICKS;
}
if (disable_dma)
printf("DMA for ATA devices is disabled.\n");
@ -789,6 +800,8 @@ PRIVATE int w_identify()
u16_t w;
unsigned long dma_status;
unsigned long size;
int prev_wakeup;
int r;
#define id_byte(n) (&tmp_buf[2 * (n)])
#define id_word(n) (((u16_t) id_byte(n)[0] << 0) \
|((u16_t) id_byte(n)[1] << 8))
@ -800,7 +813,13 @@ PRIVATE int w_identify()
/* Try to identify the device. */
cmd.ldh = wn->ldhpref;
cmd.command = ATA_IDENTIFY;
if (com_simple(&cmd) == OK && w_waitfor(STATUS_DRQ, STATUS_DRQ) &&
/* Execute *_IDENTIFY with configured *_IDENTIFY timeout. */
prev_wakeup = wakeup_ticks;
wakeup_ticks = w_identify_wakeup_ticks;
r = com_simple(&cmd);
if (r == OK && w_waitfor(STATUS_DRQ, STATUS_DRQ) &&
!(wn->w_status & (STATUS_ERR|STATUS_WF))) {
/* Device information. */
@ -811,6 +830,7 @@ PRIVATE int w_identify()
if (id_word(0) & ID_GEN_NOT_ATA)
{
printf("%s: not an ATA device?\n", w_name());
wakeup_ticks = prev_wakeup;
return ERR;
}
#endif
@ -977,13 +997,19 @@ PRIVATE int w_identify()
/* Not an ATA device; no translations, no special features. Don't
* touch it unless the BIOS knows about it.
*/
if (wn->lcylinders == 0) { return(ERR); } /* no BIOS parameters */
if (wn->lcylinders == 0) {
wakeup_ticks = prev_wakeup;
return(ERR);
} /* no BIOS parameters */
wn->pcylinders = wn->lcylinders;
wn->pheads = wn->lheads;
wn->psectors = wn->lsectors;
size = (u32_t) wn->pcylinders * wn->pheads * wn->psectors;
}
/* Restore wakeup_ticks. */
wakeup_ticks = prev_wakeup;
/* Size of the whole drive */
wn->part[0].dv_size = mul64u(size, SECTOR_SIZE);
@ -2365,7 +2391,7 @@ int safe;
/* Restore defaults. */
timeout_ticks = DEF_TIMEOUT_TICKS;
max_errors = MAX_ERRORS;
wakeup_ticks = WAKEUP;
wakeup_ticks = WAKEUP_TICKS;
w_silent = 0;
} else if (timeout < 0) {
return EINVAL;

2
tools/mkboot
View file

@ -188,7 +188,7 @@ cdfdboot)
cp -p ../boot/boot /mnt/boot/boot || exit 1
umount $dev || exit 1
installboot -d $dev ../boot/bootblock boot/boot || exit 1
edparams $dev 'unset bootopts; unset servers; disable=inet; image=/boot/image/image; bootbig(1, Regular MINIX 3 (requires at least 16 MB RAM)) { image=/boot/image/image ; boot } bootsmall(2, Small MINIX 3 (intended for 8 MB systems)) { image=/boot/image/image_small ; boot } cdproberoot=1; unset rootdev; unset leader; leader() { echo \n--- Welcome to MINIX 3. This is the boot monitor. ---\n\nChoose an option from the menu or press ESC if you need to do anything special.\nOtherwise I will boot with my defaults in 10 seconds.\n\n }; bootcd=1; main(){trap 10000 boot; menu; }; save' || exit
edparams $dev 'unset bootopts; unset servers; disable=inet; image=/boot/image/image; bootbig(1, Regular MINIX 3) { image=/boot/image/image ; boot } bootsmall(2, Small MINIX 3 (uses less memory)) { image=/boot/image/image_small ; boot } cdproberoot=1; ata_id_timeout=2; unset rootdev; unset leader; leader() { echo \n--- Welcome to MINIX 3. This is the boot monitor. ---\n\nChoose an option from the menu or press ESC if you need to do anything special.\nOtherwise I will boot with my defaults in 10 seconds.\n\n }; bootcd=1; main(){trap 10000 boot; menu; }; save' || exit
# copy image
dd if=$dev of=cdfdimage bs=8192 count=180