On Sat, Jun 02, 2001 at 06:31:20PM +0100, Tim Waugh wrote:
> On Sat, Jun 02, 2001 at 06:03:33PM +0100, Jesús Torres wrote:
> > - I read that there isn't DMA support on PCI. It has bus master support
> That's true for the Linux driver, as a side effect of not using PCI
> interrupts yet. It just needs a small tweak and some testing to get
> it going though, so long as the PCI card has ECP support (and it's
> also supported by the Linux driver).
> But why switch away from a DMA ECP-capable onboard port anyway?
I have a throughtput of 500 KB/s with a onboard port. The motive is
a access time of 2uS to the port.
I think that using a PCI card I will solve my speed problems with a
better access time.
Is it true?
If I understand you the Linux driver need a small tweak and some testing
to get it using PCI interrupts. I will can to use PIO access mode with
The main problem of it, is the CPU overload but there isn't DMA
Is The DMA support a restriction of the Linux driver or of the PCI bus?
-- / \ Jesús Miguel Torres Jorge / \ __ Tenerife, Canary Island, SPAIN ----___/ _ _ \__--- / \ <+> <+> / mailto:email@example.com \ - <_> - / jabber:firstname.lastname@example.org \ / |_ <---> _| / \ _ __ _ / \ | \ _/ \ May the Free Software Force be with you... | | | *******************
NO subestimes el poder de la Ley de Servicios de la Sociedad de la Información (LSSI) ˇˇˇFUERA LA LSSI YA!!! http://www.kriptopolis.com/
-- To unsubscribe, send mail to: email@example.com -- -- with the single word "unsubscribe" in the body of the message. --
This archive was generated by hypermail 2b29 : Sun Jun 03 2001 - 06:47:40 EDT