Subject: Re: Novatel Merlin CDPD modem
To: Christos Zoulas <christos@zoulas.com>
From: John Nemeth <jnemeth@victoria.tc.ca>
List: current-users
Date: 11/10/2003 09:08:43
On Apr 2, 12:35am, Christos Zoulas wrote:
} In article <200311100515.hAA5FWcQ010277@vtn1.victoria.tc.ca>,
} John Nemeth <jnemeth@victoria.tc.ca> wrote:
} 
} Have you tried to connect to it with tip or kermit?

     I use cu, but yes that works fine.

} >     I have a strange problem with a Novatel Merlin CDPD modem.  It
} >works fine under 1.5.2, but fails with all subsequent versions of
} >NetBSD.  It has been tried with various versions of 1.6 and -current
} >(the latest being built from Oct. 20, 2003 source code).  It is a
} >PCMCIA card that emulates a serial port.  You talk to it using PPP and
} >it establishes the connection with the CDPD network.
} >
} >     Under 1.5.2 it works fine.  Under -current, PPP will establish a
} >connection, but after that no traffic appears to flow.  I ran tcpdump
} >on the PPP interface to try to see what happens.  When I try to ping
} >outbound, I didn't see any packets going out.  When I tried to ping
} >inbound from a different machine, I saw normal traffic.  I was not able
} >to establish any kind of outbound connection since no packets went
} >out.  When I tried to establish an inbound SSH connection, I could see
} >the packets coming in, but there seemed to be lots of missing outbound
} >packets.
} >
} >     Does anybody have any ideas?  It's looks like some kind of flow
} >control / interrupt issue to me.  Anyways, here is the pertinent dmesg
} >info from the laptop:
} >
} >NetBSD 1.5.2 (LAPTOP) #4: Wed Mar 19 19:32:44 PST 2003
} >   root@laptop:/usr/src/sys/arch/i386/compile/LAPTOP
} >cpu0: Intel Celeron (Mendocino) (686-class), 298.55 MHz
} >total memory = 255 MB
} >avail memory = 233 MB
} >using 3296 buffers containing 13184 KB of memory
} >BIOS32 rev. 0 found at 0xfd7a0
} >PCI BIOS rev. 2.1 found at 0xfd9c5
} >pcibios: config mechanism [1][x], special cycles [x][x], last bus 4
} >PCI IRQ Routing Table rev. 1.0 found at 0xfdf40, size 160 bytes (8 entries)
} >PCI Interrupt Router at 000:02:0 (Intel 82371FB PCI-to-ISA Bridge (PIIX))
} >------------------------------------------
} > device vendor product pin PIRQ IRQ stage
} >------------------------------------------
} >000:02:2 0x8086 0x7112   D  0x03  11  0    already assigned
} >000:03:0 0x104c 0xac1d   A  0x00  11  0    already assigned
} >000:03:1 0x104c 0xac1d   A  0x00  11  0    already assigned
} >000:06:0 0x11c1 0x0449   A  0x02  11  0    already assigned
} >000:07:0 0x125d 0x1969   A  0x01   5  0    already assigned
} >001:00:0 0x10c8 0x0005   A  0x00  11  0    already assigned
} >------------------------------------------
} >PCI bridge 0: primary 0, secondary 1, subordinate 1
} >PCI bridge 1: primary 0, secondary 2, subordinate 2
} >PCI bridge 2: primary 0, secondary 3, subordinate 3
} >PCI bus #3 is the last bus
} >[System BIOS Setting]-----------------------
} > device vendor product
} > register space address    size
} >--------------------------------------------
} >000:00:0 0x8086 0x7190
} >       10h mem  0xf8000000 0x04000000
} >               [OK]
} >000:01:0 0x8086 0x7191
} >               [OK]
} >000:02:0 0x8086 0x7110
} >               [OK]
} >000:02:1 0x8086 0x7111
} >       20h port 0x0000fc90 0x00000010
} >               [OK]
} >000:02:2 0x8086 0x7112
} >       20h port 0x0000fca0 0x00000020
} >               [OK]
} >000:02:3 0x8086 0x7113
} >               [OK]
} >000:03:0 0x104c 0xac1d
} >       10h mem  0x10000000 0x00001000
} >               [OK]
} >000:03:1 0x104c 0xac1d
} >       10h mem  0x20000000 0x00001000
} >               [OK]
} >000:06:0 0x11c1 0x0449
} >       10h mem  0xfedffc00 0x00000100
} >       14h port 0x0000fc88 0x00000008
} >       18h port 0x0000f800 0x00000100
} >               [OK]
} >000:07:0 0x125d 0x1969
} >       10h port 0x0000fcc0 0x00000040
} >       14h port 0x0000fc60 0x00000010
} >       18h port 0x0000fc70 0x00000010
} >       1ch port 0x0000fc58 0x00000004
} >       20h port 0x0000fc5c 0x00000004
} >               [OK]
} >001:00:0 0x10c8 0x0005
} >       10h mem  0xf6000000 0x01000000
} >       14h mem  0xfe400000 0x00400000
} >       18h mem  0xfeb00000 0x00100000
} >               [OK]
} >--------------------------[  0 devices bogus]
} >Physical memory end: 0x0ffed000
} >PCI memory mapped I/O space start: 0x10000000
} >mainbus0 (root)
} >pci0 at mainbus0 bus 0: configuration mode 1
} >pci0: i/o space, memory space enabled
} >pchb0 at pci0 dev 0 function 0
} >pchb0: Intel 82443BX Host Bridge/Controller (rev. 0x03)
} >ppb0 at pci0 dev 1 function 0: Intel 82443BX AGP Interface (rev. 0x03)
} >pci1 at ppb0 bus 1
} >pci1: i/o space, memory space enabled
} >...
} >cbb0 at pci0 dev 3 function 0: Texas Instruments PCI1251 PCI-CardBus
} >Bridge (rev. 0x01)
} >cbb1 at pci0 dev 3 function 1: Texas Instruments PCI1251 PCI-CardBus
} >Bridge (rev. 0x01)
} >...
} >cbb0: interrupting at irq 11
} >cbb0: cacheline 0x0 lattimer 0x80
} >cbb0: bhlc 0x821000 lscp 0x80020200
} >cardslot0 at cbb0 slot 0 flags 0
} >cardbus0 at cardslot0: bus 2 device 0 cacheline 0x0, lattimer 0x80
} >pcmcia0 at cardslot0
} >cbb1: interrupting at irq 11
} >cbb1: cacheline 0x0 lattimer 0x80
} >cbb1: bhlc 0x821000 lscp 0x80030300
} >cardslot1 at cbb1 slot 1 flags 0
} >cardbus1 at cardslot1: bus 3 device 0 cacheline 0x0, lattimer 0x80
} >pcmcia1 at cardslot1
} >biomask ef4d netmask ef4d ttymask ffcf
} >...
} >pcmcia0: CIS version PC Card Standard 6.1
} >pcmcia0: CIS info: Novatel Wireless, Merlin Type II Wireless IP Modem, NRM6831,
} >pcmcia0: Manufacturer code 0xa4, product 0x1aaf
} >pcmcia0: function 0: serial port, ccr addr 200 mask 3
} >pcmcia0: function 0, config table entry 32: I/O card; irq mask 10;
} >iomask 3, iospace 3f8-3ff; io8 irqlevel powerdown
} >pcmcia0: function 0, config table entry 33: I/O card; irq mask 8; iomask
} >3, iospace 2f8-2ff; io8 irqlevel powerdown
} >pcmcia0: function 0, config table entry 34: I/O card; irq mask 10;
} >iomask 3, iospace 3e8-3ef; io8 irqlevel powerdown
} >pcmcia0: function 0, config table entry 35: I/O card; irq mask 8; iomask
} >3, iospace 2e8-2ef; io8 irqlevel powerdown
} >pcmcia0: function 0, config table entry 36: I/O card; irq mask ffff;
} >iomask 3, iospace 0-7; io8 irqlevel powerdown
} >com2 at pcmcia0 function 0: serial device
} >com2: ns16550a, working fifo
} >
} >Here is the PPP config:
} >
} >/etc/ppp/chat.cdpd:
} >
} >REPORT CONNECT
} >HELLO ATDT\T
} >
} >/etc/ppp/options:
} >
} >115200
} >crtscts
} >defaultroute
} >lock
} >mru 296
} >mtu 576
} >noipdefault
} >modem
} >netmask 255.255.255.255
} >noauth
} >
} >/etc/ppp/peers/cdpd:
} >
} >57600
} >connect "chat -f /etc/ppp/chat.cdpd -r /etc/ppp/connect-report -T 10.0.0.1"
} >N.N.N.N:
} >persist
} 
}-- End of excerpt from Christos Zoulas