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Updated TRIM calculations in cam/ata to be based off ATA_DSM_* defines

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Reviewed by:	mav
Approved by:	pjd (mentor)
MFC after:	2 weeks
This commit is contained in:
Steven Hartland 2013-04-26 15:59:19 +00:00
parent b1da0a9868
commit c213c55153
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=249934
1 changed files with 24 additions and 14 deletions
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38
sys/cam/ata/ata_da.c
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@ -117,10 +117,10 @@ struct disk_params {
};
#define TRIM_MAX_BLOCKS 8
#define TRIM_MAX_RANGES (TRIM_MAX_BLOCKS * 64)
#define TRIM_MAX_RANGES (TRIM_MAX_BLOCKS * ATA_DSM_BLK_RANGES)
#define TRIM_MAX_BIOS (TRIM_MAX_RANGES * 4)
struct trim_request {
uint8_t data[TRIM_MAX_RANGES * 8];
uint8_t data[TRIM_MAX_RANGES * ATA_DSM_RANGE_SIZE];
struct bio *bps[TRIM_MAX_BIOS];
};
@ -1109,8 +1109,8 @@ adaregister(struct cam_periph *periph, void *arg)
softc->trim_max_ranges = TRIM_MAX_RANGES;
if (cgd->ident_data.max_dsm_blocks != 0) {
softc->trim_max_ranges =
min(cgd->ident_data.max_dsm_blocks * 64,
softc->trim_max_ranges);
min(cgd->ident_data.max_dsm_blocks *
ATA_DSM_BLK_RANGES, softc->trim_max_ranges);
}
}
if (cgd->ident_data.support.command2 & ATA_SUPPORT_CFA)
@ -1186,10 +1186,12 @@ adaregister(struct cam_periph *periph, void *arg)
softc->disk->d_flags = 0;
if (softc->flags & ADA_FLAG_CAN_FLUSHCACHE)
softc->disk->d_flags |= DISKFLAG_CANFLUSHCACHE;
if ((softc->flags & ADA_FLAG_CAN_TRIM) ||
((softc->flags & ADA_FLAG_CAN_CFA) &&
!(softc->flags & ADA_FLAG_CAN_48BIT)))
if (softc->flags & ADA_FLAG_CAN_TRIM) {
softc->disk->d_flags |= DISKFLAG_CANDELETE;
} else if ((softc->flags & ADA_FLAG_CAN_CFA) &&
!(softc->flags & ADA_FLAG_CAN_48BIT)) {
softc->disk->d_flags |= DISKFLAG_CANDELETE;
}
if ((cpi.hba_misc & PIM_UNMAPPED) != 0)
softc->disk->d_flags |= DISKFLAG_UNMAPPED_BIO;
strlcpy(softc->disk->d_descr, cgd->ident_data.model,
@ -1354,9 +1356,9 @@ adastart(struct cam_periph *periph, union ccb *start_ccb)
/* Try to extend the previous range. */
if (lba == lastlba) {
c = min(count, 0xffff - lastcount);
c = min(count, ATA_DSM_RANGE_MAX - lastcount);
lastcount += c;
off = (ranges - 1) * 8;
off = (ranges - 1) * ATA_DSM_RANGE_SIZE;
req->data[off + 6] = lastcount & 0xff;
req->data[off + 7] =
(lastcount >> 8) & 0xff;
@ -1365,8 +1367,8 @@ adastart(struct cam_periph *periph, union ccb *start_ccb)
}
while (count > 0) {
c = min(count, 0xffff);
off = ranges * 8;
c = min(count, ATA_DSM_RANGE_MAX);
off = ranges * ATA_DSM_RANGE_SIZE;
req->data[off + 0] = lba & 0xff;
req->data[off + 1] = (lba >> 8) & 0xff;
req->data[off + 2] = (lba >> 16) & 0xff;
@ -1379,6 +1381,11 @@ adastart(struct cam_periph *periph, union ccb *start_ccb)
count -= c;
lastcount = c;
ranges++;
/*
* Its the caller's responsibility to ensure the
* request will fit so we don't need to check for
* overrun here
*/
}
lastlba = lba;
req->bps[bps++] = bp1;
@ -1386,7 +1393,8 @@ adastart(struct cam_periph *periph, union ccb *start_ccb)
if (bps >= TRIM_MAX_BIOS ||
bp1 == NULL ||
bp1->bio_bcount / softc->params.secsize >
(softc->trim_max_ranges - ranges) * 0xffff)
(softc->trim_max_ranges - ranges) *
ATA_DSM_RANGE_MAX)
break;
} while (1);
cam_fill_ataio(ataio,
@ -1395,10 +1403,12 @@ adastart(struct cam_periph *periph, union ccb *start_ccb)
CAM_DIR_OUT,
0,
req->data,
((ranges + 63) / 64) * 512,
((ranges + ATA_DSM_BLK_RANGES - 1) /
ATA_DSM_BLK_RANGES) * ATA_DSM_BLK_SIZE,
ada_default_timeout * 1000);
ata_48bit_cmd(ataio, ATA_DATA_SET_MANAGEMENT,
ATA_DSM_TRIM, 0, (ranges + 63) / 64);
ATA_DSM_TRIM, 0, (ranges + ATA_DSM_BLK_RANGES -
1) / ATA_DSM_BLK_RANGES);
start_ccb->ccb_h.ccb_state = ADA_CCB_TRIM;
goto out;
}