t to look into ioremap() and maybe buy Linux
Device Drivers by Rubini (O'Reilly).
Have fun!
Eli
-------. No wonder we didn't get this right first time
Eli Carter | through. It's not really all that horribly
eli.carter(at)inet.com `- complicated, but t
by some, but it seems completely on-topic to me...
> jon (who's glad we didn't tell people how to request major device
> numbers...)
*chuckle* :)
Eli
-------. No wonder we didn't get this right first time
Eli Carter | through. It&
george anzinger wrote:
>
> Eli Carter wrote:
> >
> > All,
> >
> > I did a quick look in include/linux for a standard implementation of an
> > array-based circular queue, but I didn't see one.
> >
> > I was thinking something that could be decl
n the kernel? If not, it seems that having
something like this would reduce the potential for bugs.
Thoughts?
Eli
---. No wonder we didn't get this right first time
Eli Carter | through. It's not really all that horribly
eli.carter(at)inet.com `- c
ntics should continue to
> use __inline__ since this keyword will hopefully forever signal the
> gcc semantics.
So what are the differences? (Or, what would I read to learn the
differences?)
When are they important to us?
TIA,
Eli
---. Rule of Accu
Can someone point me to a "standard way" of doing rate limiting of error
messages in the kernel?
TIA,
Eli
---. Rule of Accuracy: When working toward
Eli Carter |the solution of a problem, it always
eli.carter(a
Jeff Garzik wrote:
>
> Eli Carter wrote:
> > The "!(addr[0]&1)" part of the test already catches the ff's case, so
> > that is redundant.
> > Using 6 bytes instead of 7 is an improvement.
>
> oops. Thanks, updated patch attached. My patch
nline int is_valid_ether_addr( u8 *addr )
> +{
> + const char zaddr[6] = {0,};
> + const char faddr[6] = {0xFF,0xFF,0xFF,0xFF,0xFF,0xFF};
> +
> + return !(addr[0]&1) &&
> + memcmp( addr, zaddr, 6) &&
> +
Eli Carter wrote:
>
> Eli Carter wrote:
> >
> > Russell King wrote:
> > >
> > > Eli Carter writes:
> > > > What are you seeing that I'm missing?
> > >
> > > Ok, after sitting down and thinking again about this problem
int points = badness(p);
> if (points > maxpoints) {
> chosen = p;
>
Having not looked at the code... Why not "if( p->pid > 1 )"? (Or can
p->pid can be negative?!, um, typecast to unsigned...)
Eli
---
Eli Carter wrote:
>
> Russell King wrote:
> >
> > Eli Carter writes:
> > > What are you seeing that I'm missing?
> >
> > Ok, after sitting down and thinking again about this problem, its not
> > the 9.ms case, but the 10.1 case:
>
Russell King wrote:
>
> Eli Carter writes:
> > What are you seeing that I'm missing?
>
> Ok, after sitting down and thinking again about this problem, its not
> the 9.ms case, but the 10.1 case:
[snip]
> Like I say, this requires good timing to create,
w? The x86 is an improvement over the current situation
(at least on ebsa285). Or do you have something else in mind?
Eli
---. Rule of Accuracy: When working toward
Eli Carter |the solution of a problem, it always
eli.carter(at)inet.com `--
Russell King wrote:
>
> Eli Carter writes:
> > What are you seeing that I'm missing?
>
> Ok, after sitting down and thinking again about this problem, its not
> the 9.ms case, but the 10.1 case:
And you described (in much better detail) the same problem
Russell King wrote:
>
> Eli Carter writes:
> > Russell, I know that at least the EBSA285's timer1_gettimeoffset() needs
> > some attention to fix a time going backward problem.
>
> I know about this, which is what started me looking at what x86 does,
> and I am f
variables... but that's kinda ugly. Perhaps it should
call gettimeoffset to make sure that it keeps up with the jiffies?
Ummm Of course, if interrupt are disabled for multiple jiffies, I'm
not sure quite how we detect that either...
Thoughts, comments, questions, etc. welcome.
Eli
-
liseconds.)
I've seen behaviour like that on an ARM processor because the time code
was not considering missed (or rather, delayed response to) timer
interrupts. The time jump in that case was slightly less than 1 jiffie
(jiffie = 10ms). It's likely rather hardware
http://www.win.tue.nl/~aeb/linux/vfs/trail-1.html
Cool.
Post this to kernelnewbies: [EMAIL PROTECTED]
Eli
---. Rule of Accuracy: When working toward
Eli Carter |the solution of a problem, it always
eli.carter(at)inet.com `
t; web in one place - its called the Kernel Wiki, and iirc it is on
> sourceforge.
It's here: http://kernelbook.sourceforge.net:80/wiki/?KernelWiki
BUT.. it's currently dead and has been since December.
I'd really like to see this brought back...
Eli
---------
. I see flame throwers everywhere.
Get "Linux Device Drivers" by Rubini and hang out on the kernel-newbies
list for a while... people there are more open to answering questions of
this type than most here.
But above all, don't let the flames from this discourage you.
^C-ya,
Eli
but I
tested this change in a 2.2.x kernel, so it should be ok.
Is this patch satisfactory?
Eli
. Rule of Accuracy: When working toward
Eli Carter | the solution of a problem, it always
[EMAIL PROTECTED] `- helps if you know the answer.
--- linux/
shortly.
This one still uses the PROM since we are going for least change in
initialization.
is_valid_ether_addr() is static inline in
Is this one satisfactory?
Eli
--------. Rule of Accuracy: When working toward
Eli Carter | the solution of a problem
be helpful to you.
Eli
. Rule of Accuracy: When working toward
Eli Carter | the solution of a problem, it always
[EMAIL PROTECTED] `- helps if you know the answer.
-
To unsubscribe from this list: send the line "unsu
not read the EEPROM. I think he has a
point, so I'll make that change and submit yet another patch pair.
Alan, do you want me to put your inline version in
while I'm at it, or what?
Comments?
Eli
. Rule of Accuracy: When working toward
Eli Carter
Eli Carter wrote:
> I'm dealing with an AMD chip that does not have the station address in
> the PROM at the base address, but resides in the "Physical Address
> Registers" in the chip (thanks to the bootloader in my case). This
> patch makes the driver try those regis
nly.)
If this is not acceptible or could be improved, please reply with
feedback.
TIA,
Eli
. Rule of Accuracy: When working toward
Eli Carter | the solution of a problem, it always
[EMAIL PROTECTED] `- helps if you know the
header (draft-chandhok-listid-04.txt RFC-to-be,
> implemented in lots of mailing list managers already).
Have you looked at the headers in an LK email?
Sender: [EMAIL PROTECTED]
X-Mailing-List: [EMAIL PROTECTED]
^^ Should provide that List-Id you want.
Eli
er, users and applications
Eli Carter | serve only to provide a test load."
[EMAIL PROTECTED] `-- (random fortune)
-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to [EMAIL PROTECTED]
Eli Carter wrote:
> Here is a patch that adds the following to the pcnet32.c driver:
[snip]
> - According to the Am79C973/Am79C975 docs from AMD, The collision bits
> are only valid if ENP is set, so I added a check for that.
[snip]
> @@ -1164,7 +1206,8 @@
>
ld be welcomed as well.
Comments?
Eli
. "To the systems programmer, users and applications
Eli Carter | serve only to provide a test load."
[EMAIL PROTECTED] `-- (random fortune)
--- linux/drivers/net/pcnet32.c 2001/01/17 17:42:4
.) I'm open to
suggestions on that as well. :)
Thanks again!
Eli
. "To the systems programmer, users and applications
Eli Carter | serve only to provide a test load."
[EMAIL PROTECTED] `-- (random fortune)
-
To unsubscribe
Quick question: has anyone used the lance.c driver for a 100BaseT
network PCI device? If so, what successes/failures did you run into?
(I'm working with an Am79C973 chip.)
TIA,
Eli
. "To the systems programmer, users and applications
Eli Carter | ser
ook/kernel-locking*
>
> Rusty.
> --
> Hacking time.
Perhaps I should have specified that I'm working with 2.2.xy
I'll d/l a 2.4.0-test and look at the docbook in that. Thanks for the
pointer.
Eli
. "To the systems programmer, users and applicat
question: What about blocking read/write locks
(with _interruptible variants)?
TIA,
Eli
. "To the systems programmer, users and applications
Eli Carter | serve only to provide a test load."
[EMAIL PROTECTED] `-- (random fortune)
leep lock. A few blind greps through the
source didn't find anything that caught my eye.
If there aren't, would a patch to add them be of interest to anyone?
Input on design details welcome.
TIA,
Eli
. "To the systems programmer, users and appl
; /usr/src/linux-2.2.18)
>
> I personally wouldn't like some programs to do a `uname -r`
> check because it won't do what I want it to :)
And don't forget cross-compiling... (No, I don't know how all that is
supposed to work. *sigh*)
^C-ya,
Eli
--
ful stuff. Some of it is a bit dated by
development in 2.2 & 2.[34], but it'll help a lot.
Good luck,
Eli
----. "To the systems programmer, users and applications
Eli Carter | serve only to provide a test load."
[EMAIL PROTECTED] `
ect.
Please apply or let me know why.
Eli
ps. It's an attachment rather than inline because I can't seem to get
Netscape (4.71) to do that without replacing tabs with spaces. Grr.
. "To the systems programmer, users and applications
Eli Carter |
ectly somewhere
I'll read the fine manual or the appropriate source if someone will
point it out to me...
TIA,
Eli
. "To the systems programmer, users and applications
Eli Carter | serve only to provide a test load.&qu
mode=thread)
*sigh*
Eli
----. "To the systems programmer, users and applications
Eli Carter | serve only to provide a test load."
[EMAIL PROTECTED] `-- (random fortune)
-
To unsubscribe from this list: send the line "un
Russell King wrote:
> Eli Carter writes:
> > I have a Gnome Dia document in which I've tried to lay out the fixed
> > memory locations for arm-linux and the mapping of
> > ioremap<->virt<->phys<->bus. It's not perfect, but if you want a copy,
>
ke xconfig works in the original old kernel source
> directory.
> Thanks !
include/asm is supposed to be a softlink. man cp. You need to use -d
to preserve links instead of dereferencing them.
Eli
--------. "To the systems programmer, users and applications
E
m-linux and the mapping of
ioremap<->virt<->phys<->bus. It's not perfect, but if you want a copy,
email me.
Eli
. "To the systems programmer, users and applications
Eli Carter | serve only to provide a test load."
[EMAIL PROTECTED] `
isn't
available, what is the point of submitting the patch?
Eli
------------. "To the systems programmer, users and applications
Eli Carter | serve only to provide a test load."
[EMAIL PROTECTED] `-- (random fortune)
-
To unsubscribe from this l
44 matches
Mail list logo
