In message <[EMAIL PROTECTED]>, "Bruce M. Simpson" writes:
>> Modified files:
>> sbin/atacontrol atacontrol.c
>> Log:
>> Recognize CFA devices using either identification method.
>
>Does this give the ata driver a means of identifying that a disk device
>is actually a CompactFlash device?
I have the attached patch in sos@ mailbox for approval, that adds
BIO_DELETE support for the ata driver.
I also want to implement a -E option to fsck(8) to erase all
unallocated blocks.
And finally the big item: msdosfs and ufs support to issue BIO_DELETE
when files are deleted. UFS is nasty because of soft-updates.
Poul-Henning
Index: ata-disk.c
===================================================================
RCS file: /home/ncvs/src/sys/dev/ata/ata-disk.c,v
retrieving revision 1.205
diff -u -r1.205 ata-disk.c
--- ata-disk.c 23 Nov 2007 08:17:14 -0000 1.205
+++ ata-disk.c 16 Dec 2007 21:22:03 -0000
@@ -162,6 +162,9 @@
adp->disk->d_unit = device_get_unit(dev);
if (atadev->param.support.command2 & ATA_SUPPORT_FLUSHCACHE)
adp->disk->d_flags = DISKFLAG_CANFLUSHCACHE;
+ if ((atadev->param.support.command2 & ATA_SUPPORT_CFA) ||
+ atadev->param.config == ATA_PROTO_CFA)
+ adp->disk->d_flags = DISKFLAG_CANDELETE;
snprintf(adp->disk->d_ident, sizeof(adp->disk->d_ident), "ad:%s",
atadev->param.serial);
disk_create(adp->disk, DISK_VERSION);
@@ -274,6 +277,12 @@
else
request->u.ata.command = ATA_WRITE;
break;
+ case BIO_DELETE:
+ request->flags = ATA_R_CONTROL;
+ request->u.ata.command = ATA_CFA_ERASE;
+ request->transfersize = 0;
+ request->donecount = bp->bio_bcount;
+ break;
case BIO_FLUSH:
request->u.ata.lba = 0;
request->u.ata.count = 0;
--
Poul-Henning Kamp | UNIX since Zilog Zeus 3.20
[EMAIL PROTECTED] | TCP/IP since RFC 956
FreeBSD committer | BSD since 4.3-tahoe
Never attribute to malice what can adequately be explained by incompetence.
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