Attachment 228081 Details for Bug 105608 – fdc(4) patch

[patch] fdc(4) patch

fdc.4.patch (text/plain), 2.38 KB, created by Felix Johnson on 2021-09-21 06:03:10 UTC

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Creator: Felix Johnson

Created: 2021-09-21 06:03:10 UTC

Size: 2.38 KB

patch

obsolete

>diff --git a/share/man/man4/fdc.4 b/share/man/man4/fdc.4
>index 1580fc06777..f6e8ccd4846 100644
>--- a/share/man/man4/fdc.4
>+++ b/share/man/man4/fdc.4
>@@ -27,7 +27,7 @@
> .\"
> .\" $FreeBSD$
> .\"
>-.Dd April 7, 2017
>+.Dd September 20, 2021
> .Dt FDC 4
> .Os
> .Sh NAME
>@@ -313,6 +313,61 @@ Third argument is a pointer to
> This type is the same as being used in the per-drive configuration
> flags, or in the CMOS configuration data or ACPI namespace on IA32 systems.
> .El
>+.Sh SYSCTL VARIABLES
>+.Bl -tag -width "debug.fdc.debugflags"
>+.It Dv debug.fdc.debugflags
>+Selectively enable debugging by setting one or more flags.
>+.Bl -tag -width "0x40"
>+.It Dv 0x01
>+Dump device registers on reset.
>+.It Dv 0x02
>+When an IO operation completes, print the number of retries
>+when that number is greater than zero.
>+.It Dv 0x04
>+Print when the number of retries exceeds
>+.Dv debug.fdc.retries
>+.Pq Dv EIO .
>+Print when the option
>+.Dv FDOPT_NOERROR
>+is set and an error would have returned from a write operation.
>+.It Dv 0x08
>+Print detailed IO command information.
>+.It Dv 0x10
>+Print status registers.
>+.It Dv 0x20
>+Print detailed status registers when interrupts complete.
>+Print the source code line number close to the source of a
>+non-zero return from a thread worker operation.
>+.It Dv 0x40
>+Print when the disk appears to be lost.
>+Print cylinder, head, sector, and sector shift information
>+after a request to read an ID field.
>+Notify whether a disk probe resulted in finding a disk.
>+When detecting the density of media present, indicate whether
>+the autosensing was successful, and if so, the size of the
>+medium in kilobytes.
>+Print detailed type information when setting the drive type.
>+.It Dv 0x80
>+Print when an unknown IOCTL is used.
>+.El
>+.It Dv debug.fdc.fifo
>+For enhanced controllers, allows a non-default FIFO
>+threshold setting. The default is 8 bytes.
>+.It Dv debug.fdc.retries
>+Maximum number of retries to attempt. The default is 10.
>+.It Dv debug.fdc.spec1
>+Specification byte one (step-rate + head unload).
>+The default step rate is 6 ms. The default head unload
>+time is 240 ms.
>+.It Dv debug.fdc.spec2
>+Specification byte two (head load time + no-dma).
>+The default head load time is 16 ms, and no-dma is 0
>+.Pq disabled .
>+.It Dv debug.fdc.settle
>+Head settling time in
>+.Sy settle
>+/ hz seconds. The default value is set during device attach.
>+.El
> .Sh FILES
> .Bl -tag -width ".Pa /dev/fd*" -compact
> .It Pa /dev/fd*

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