diff options
| author | David Gwynne <dlg@cvs.openbsd.org> | 2010-04-05 01:47:55 +0000 |
|---|---|---|
| committer | David Gwynne <dlg@cvs.openbsd.org> | 2010-04-05 01:47:55 +0000 |
| commit | fbf80b3b95d13cf96fbc23b917fafc9a9a329a92 (patch) | |
| tree | 9fdd2d64389e8d2bf4a0d183cfa767597018e64a /sys/dev/ata | |
| parent | 7522089115e47a5f3ba46b1cf04e3310d4cf155a (diff) | |
populate the logical per physical exponent of the read cap 16 reply by
factoring the processing that the limits vpd page does out.
this will be easier when i get hold of a disk that does provide values in
these ata identify fields.
Diffstat (limited to 'sys/dev/ata')
| -rw-r--r-- | sys/dev/ata/atascsi.c | 28 |
1 files changed, 19 insertions, 9 deletions
diff --git a/sys/dev/ata/atascsi.c b/sys/dev/ata/atascsi.c index cddf1e4eaf2..f10bd151361 100644 --- a/sys/dev/ata/atascsi.c +++ b/sys/dev/ata/atascsi.c @@ -1,4 +1,4 @@ -/* $OpenBSD: atascsi.c,v 1.77 2010/04/05 00:59:31 dlg Exp $ */ +/* $OpenBSD: atascsi.c,v 1.78 2010/04/05 01:47:54 dlg Exp $ */ /* * Copyright (c) 2007 David Gwynne <dlg@openbsd.org> @@ -98,6 +98,7 @@ int ata_polled(struct ata_xfer *); u_int64_t ata_identify_blocks(struct ata_identify *); u_int ata_identify_blocksize(struct ata_identify *); +u_int ata_identify_block_l2p_exp(struct ata_identify *); struct atascsi * atascsi_attach(struct device *self, struct atascsi_attach_args *aaa) @@ -675,20 +676,14 @@ atascsi_disk_vpd_limits(struct scsi_xfer *xs) struct atascsi *as = link->adapter_softc; struct ata_port *ap = as->as_ports[link->target]; struct scsi_vpd_disk_limits pg; - u_int16_t p2l_sect; bzero(&pg, sizeof(pg)); pg.hdr.device = T_DIRECT; pg.hdr.page_code = SI_PG_DISK_LIMITS; pg.hdr.page_length = SI_PG_DISK_LIMITS_LEN_THIN; - p2l_sect = letoh16(ap->ap_identify.p2l_sect); - if ((p2l_sect & ATA_ID_P2L_SECT_MASK) == ATA_ID_P2L_SECT_VALID && - ISSET(p2l_sect, ATA_ID_P2L_SECT_SET)) { - _lto2b(2 << (p2l_sect & SI_PG_DISK_LIMITS_LEN_THIN), - pg.optimal_xfer_granularity); - } else - _lto2b(1, pg.optimal_xfer_granularity); + _lto2b(1 << ata_identify_block_l2p_exp(&ap->ap_identify), + pg.optimal_xfer_granularity); bcopy(&pg, xs->data, MIN(sizeof(pg), xs->datalen)); @@ -812,6 +807,20 @@ ata_identify_blocksize(struct ata_identify *id) return (blocksize); } +u_int +ata_identify_block_l2p_exp(struct ata_identify *id) +{ + u_int exponent = 0; + u_int16_t p2l_sect = letoh16(id->p2l_sect); + + if ((p2l_sect & ATA_ID_P2L_SECT_MASK) == ATA_ID_P2L_SECT_VALID && + ISSET(p2l_sect, ATA_ID_P2L_SECT_SET)) { + exponent = (p2l_sect & ATA_ID_P2L_SECT_SIZE); + } + + return (exponent); +} + void atascsi_disk_capacity(struct scsi_xfer *xs) { @@ -846,6 +855,7 @@ atascsi_disk_capacity16(struct scsi_xfer *xs) _lto4b(ata_identify_blocks(&ap->ap_identify), rcd.addr); _lto4b(ata_identify_blocksize(&ap->ap_identify), rcd.length); + rcd.logical_per_phys = ata_identify_block_l2p_exp(&ap->ap_identify); bcopy(&rcd, xs->data, MIN(sizeof(rcd), xs->datalen)); |