Author: mav
Date: Mon Oct 21 08:57:27 2013
New Revision: 256836
URL: http://svnweb.freebsd.org/changeset/base/256836
Log:
MFprojects/camlock:
Remove hard limit on number of BIOs handled with one ATA TRIM request.
Modified:
head/sys/cam/ata/ata_da.c
Modified: head/sys/cam/ata/ata_da.c
==============================================================================
--- head/sys/cam/ata/ata_da.c Mon Oct 21 08:49:46 2013 (r256835)
+++ head/sys/cam/ata/ata_da.c Mon Oct 21 08:57:27 2013 (r256836)
@@ -123,10 +123,9 @@ struct disk_params {
#define TRIM_MAX_BLOCKS 8
#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 * ATA_DSM_RANGE_SIZE];
- struct bio *bps[TRIM_MAX_BIOS];
+ TAILQ_HEAD(, bio) bps;
};
struct ada_softc {
@@ -1427,10 +1426,11 @@ adastart(struct cam_periph *periph, unio
struct trim_request *req = &softc->trim_req;
struct bio *bp1;
uint64_t lastlba = (uint64_t)-1;
- int bps = 0, c, lastcount = 0, off, ranges = 0;
+ int c, lastcount = 0, off, ranges = 0;
softc->trim_running = 1;
bzero(req, sizeof(*req));
+ TAILQ_INIT(&req->bps);
bp1 = bp;
do {
uint64_t lba = bp1->bio_pblkno;
@@ -1473,10 +1473,9 @@ adastart(struct cam_periph *periph, unio
*/
}
lastlba = lba;
- req->bps[bps++] = bp1;
+ TAILQ_INSERT_TAIL(&req->bps, bp1, bio_queue);
bp1 = bioq_first(&softc->trim_queue);
- if (bps >= TRIM_MAX_BIOS ||
- bp1 == NULL ||
+ if (bp1 == NULL ||
bp1->bio_bcount / softc->params.secsize >
(softc->trim_max_ranges - ranges) *
ATA_DSM_RANGE_MAX)
@@ -1764,23 +1763,22 @@ adadone(struct cam_periph *periph, union
if (softc->outstanding_cmds == 0)
softc->flags |= ADA_FLAG_WENT_IDLE;
if (state == ADA_CCB_TRIM) {
- struct trim_request *req =
- (struct trim_request *)ataio->data_ptr;
- int i;
-
- for (i = 1; i < TRIM_MAX_BIOS && req->bps[i]; i++) {
- struct bio *bp1 = req->bps[i];
+ TAILQ_HEAD(, bio) queue;
+ struct bio *bp1;
- bp1->bio_error = bp->bio_error;
- if (bp->bio_flags & BIO_ERROR) {
+ TAILQ_INIT(&queue);
+ TAILQ_CONCAT(&queue, &softc->trim_req.bps, bio_queue);
+ softc->trim_running = 0;
+ while ((bp1 = TAILQ_FIRST(&queue)) != NULL) {
+ TAILQ_REMOVE(&queue, bp1, bio_queue);
+ bp1->bio_error = error;
+ if (error != 0) {
bp1->bio_flags |= BIO_ERROR;
bp1->bio_resid = bp1->bio_bcount;
} else
bp1->bio_resid = 0;
biodone(bp1);
}
- softc->trim_running = 0;
- biodone(bp);
adaschedule(periph);
} else
biodone(bp);
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