Hi everyone,
Testing of a Sunix 4066u 8 port serial card with OpenBSD 5.7 shows port
speeds on ports 3-8 to be out (slower than expected) by a factor of
eight. Checking the source code it looks like the problem still exists
in 5.8 though I haven't actually tested to confirm.
My card:
# pcidump -v
<snip...>
5:12:0: Sunix 40XX
0x0000: Vendor ID: 1409 Product ID: 7168
0x0004: Command: 0081 Status: 0280
0x0008: Class: 07 Subclass: 00 Interface: 02 Revision: 01
0x000c: BIST: 00 Header Type: 00 Latency Timer: 00 Cache Line
Size: 00
0x0010: BAR io addr: 0x0000ce00/0x0020
0x0014: BAR io addr: 0x0000cd00/0x0010
0x0018: BAR io addr: 0x0000cc00/0x0008
0x001c: BAR io addr: 0x0000cb00/0x0008
0x0020: BAR io addr: 0x0000ca00/0x0008
0x0024: BAR io addr: 0x0000c900/0x0008
0x0028: Cardbus CIS: 00000000
0x002c: Subsystem Vendor ID: 1409 Product ID: 4066
0x0030: Expansion ROM Base Address: 00000000
0x0038: 00000000
0x003c: Interrupt Pin: 01 Line: 09 Min Gnt: 00 Max Lat: 00
The relevant file I changed in order to fix is
/usr/src/sys/dev/pci/pucdata.c
In particular, with changes applied:
{ /* SUNIX 406X 8S */
{ PCI_VENDOR_SUNIX, PCI_PRODUCT_SUNIX_40XX, 0x1409, 0x4060 },
{ 0xffff, 0xffff, 0xffff, 0xe0f0 },
{
{ PUC_COM_POW2(3), 0x10, 0x0000 },
{ PUC_COM_POW2(3), 0x10, 0x0008 },
{ PUC_COM_POW2(0), 0x14, 0x0000 }, // Changed MJV 29-Oct-15
{ PUC_COM_POW2(0), 0x14, 0x0008 }, // From 3->0
{ PUC_COM_POW2(0), 0x18, 0x0000 }, // Port speeds now
correct
{ PUC_COM_POW2(0), 0x1c, 0x0000 }, //
{ PUC_COM_POW2(0), 0x20, 0x0000 }, //
{ PUC_COM_POW2(0), 0x24, 0x0000 }, //
},
},
Here is the diff on my hierarchy - may or may not not work on 'release',
but you get the idea of what I have changed:
--- pucdata.c.orig Thu Oct 29 16:44:52 2015
+++ pucdata.c Fri Oct 30 09:36:45 2015
@@ -1631,12 +1631,12 @@
{
{ PUC_COM_POW2(3), 0x10, 0x0000 },
{ PUC_COM_POW2(3), 0x10, 0x0008 },
- { PUC_COM_POW2(3), 0x14, 0x0000 },
- { PUC_COM_POW2(3), 0x14, 0x0008 },
- { PUC_COM_POW2(3), 0x18, 0x0000 },
- { PUC_COM_POW2(3), 0x1c, 0x0000 },
- { PUC_COM_POW2(3), 0x20, 0x0000 },
- { PUC_COM_POW2(3), 0x24, 0x0000 },
+ { PUC_COM_POW2(0), 0x14, 0x0000 }, // Changed MJV 29-Oct-15
+ { PUC_COM_POW2(0), 0x14, 0x0008 }, // From 3->0
+ { PUC_COM_POW2(0), 0x18, 0x0000 }, // Port speeds now
correct
+ { PUC_COM_POW2(0), 0x1c, 0x0000 }, //
+ { PUC_COM_POW2(0), 0x20, 0x0000 }, //
+ { PUC_COM_POW2(0), 0x24, 0x0000 }, //
},
},
...
Perhaps also of interest, when originally searching for other people
experiencing this problem I found a posting from 2009:
http://openbsd-archive.7691.n7.nabble.com/system-6206-SUNIX-8-ports-serial-card-SER4066RM-some-ports-have-a-clock-generator-which-is-8x-higherl-td194444.html
in which there is a patch for the Sunix 406X to fix the incorrect port
speeds (ports too fast!)?! I'm guessing the change became mainstream by
5.7, but this doesn't work with my card. Curiously, in that web posting
the card in question has a Product ID
0x002c: Subsystem Vendor ID: 1409 Product ID: 5066
Which doesn't match up with the patch in that posting or the product ID
of my card, which is:
0x002c: Subsystem Vendor ID: 1409 Product ID: 4066
Interestingly, there is an entry for the 5066 card in present day
pucdata.c, but it also has PUC_COM_POW2(0) for ports 3-8. I'll let
someone else figure how that all came about...
{ /* SUNIX 406X 8S */
{ PCI_VENDOR_SUNIX, PCI_PRODUCT_SUNIX_40XX, 0x1409, 0x5066 },
{ 0xffff, 0xffff, 0xffff, 0xffff },
{
{ PUC_COM_POW2(3), 0x10, 0x0000 },
{ PUC_COM_POW2(3), 0x10, 0x0008 },
{ PUC_COM_POW2(0), 0x14, 0x0000 },
{ PUC_COM_POW2(0), 0x14, 0x0008 },
{ PUC_COM_POW2(0), 0x18, 0x0000 },
{ PUC_COM_POW2(0), 0x1c, 0x0000 },
{ PUC_COM_POW2(0), 0x20, 0x0000 },
{ PUC_COM_POW2(0), 0x24, 0x0000 },
},
},
In any case, the change I made make my card work correctly. It may help
other people too but YMMV.
-Martin
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