Bug 20523

Summary: [sio] [patch] support for PCI multiport cards for sio driver
Product: Base System Reporter: vak <vak>
Component: kernAssignee: Bruce Evans <bde>
Status: Closed FIXED    
Severity: Affects Only Me    
Priority: Normal    
Version: Unspecified   
Hardware: Any   
OS: Any   
Attachments:
Description Flags
file.diff none

Description vak 2000-08-10 16:00:01 UTC 
1) Split the sioattach() routine. Leave the isa-dependent
   part in sioattach(), and build the bus-independent 
   attachment function sio_attach_unit().

2) Change the com_addr macro. Use the array of pointers,
   not the devclass_get_softc routine, which is inadequate
   for multiport adapters.

3) Change sio_pci_attach, handle multiport adapters.
   For a new adapter type, add a string to pci_ids[].
   The adapters are parameterized by a number of ports,
   fifo size, hardware rts/cts support and i/o address step.
   Pci ports get unit numbers, starting from the last
   isa unit number. No sio_pci_kludge_unit() is needed.
   The option COM_MULTIPORT is not needed for pci multiport adapters.

4) Add sio_pci_intr() routine for handling interrupts
   from PCI multiport adapters.

Tested on Cronyx Omega-PCI 8-channel adapter.
Comment 1 Poul-Henning Kamp 2000-09-12 14:05:48 UTC 
I tried this patch today, and I got as far as probing and attaching
to an ADCOMtec 4 port PCI card.

There are some problems though:  Some parts of the patch rejects on
-current, but that is fixable.

Worse is that the pci unit number allocation is bogus.  I'm not sure
what the right way is and will therefore leave this alone for now.

I may be able to send the ADCOMtec card to any dedicated sio hacker to
keep in return for making this patch work.

--
Poul-Henning Kamp       | UNIX since Zilog Zeus 3.20
phk@FreeBSD.ORG         | TCP/IP since RFC 956
FreeBSD coreteam member | BSD since 4.3-tahoe    
Never attribute to malice what can adequately be explained by incompetence.
Comment 2 Juli Mallett freebsd_committer freebsd_triage 2002-04-02 07:23:46 UTC 
Responsible Changed
From-To: freebsd-bugs->bde

Over to sio(4) maintainer.
Comment 3 John Baldwin freebsd_committer freebsd_triage 2005-11-23 14:40:16 UTC 
State Changed
From-To: open->closed

OBE.  Multiport cards are now handled by puc(4).