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Name: Ivan Passos
Member since: 2000-05-18 04:27:58
Last Login: N/A

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My name is Ivan Passos and I work for Cyclades, a network connectivity company. I develop and maintain the Linux/UNIX device drivers for Cyclades boards, which consist of 3 families as of now: the Cyclom-Y (RS232 asynchronous), the Cyclades-Z (RS232 asynchronous) and the PC300 (synchronous, V.35/RS232/X.21/T1/E1). I'm currently developing the device driver / utilities for the most recent Cyclades breed, the Cyclades-PC400 (Digital RAS card, supports 1 T1/E1 line with up to 30 channels for analog modems, ISDN connections, etc.).

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Recent blog entries by ivan

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8 Jun 2000 (updated 22 Mar 2001 at 00:36 UTC) »

What a week! The problem with the Cyclades Async Driver and the Dell PE2400 has been solved, and a new driver package (V_6.5.7) has been released today.

Also, a stable alpha-version of the Cyclades-PC300 Linux driver with Frame Relay support has been released internally for tests. The problems with the operation of multiple PC300 channels in the same system has been solved, and this should probably be the driver version that will be released for beta-tests with customers.

Cyctest/Linux V_2.0.0.0 has been released today too. It includes support to all Cyclades cards (synchronous and asynchronous), and its interface is much better now.

The Cyclades-PC300 Linux driver now supports Frame Relay. It's not officially released yet, as I still have to do some heavy load tests. The Tx performance on this driver is much improved, thanks to the sample code I got from Krzysztof Halasa (the generic HDLC driver maintainer). However, operation of multiple PC300 channels in the same system still deserves some attention and investigation.

Probably tomorrow I'll be able to go back to the investigation of the Dell PE2400 and the Cyclades Async Driver.

I am currently debugging a very strange problem in a Dell PowerEdge 2400 system. It seems that the SCSI driver (Adaptec) messes up the Cyclom-Y MMIO area when it's loaded. Oh, boy ...

I've also released a new version of the Cyclades Async Driver package today (6.5.6b), which addresses a PCILib compilation problem with Red Hat 6.2 systems. The driver itself is still the same as the one in the previous package.

Now, I gotta work on the Frame Relay support for the Cyclades-PC300 Linux driver and on the PC300 support for Cyctest/Linux .

Today I created this account.

Today I also released V_3.0.0 of the Cyclades-PC300 Linux driver, which among other things improves Tx performance and fixes chip bugs (PLX and SCA-II).

Also, I went to my first EBLUG meeting (it was their second). It's good to be part of a LUG that's just starting, as you can contribute a lot.

 

ivan certified others as follows:

  • ivan certified alan as Master
  • ivan certified acme as Journeyer
  • ivan certified riel as Master
  • ivan certified ivan as Journeyer
  • ivan certified marcelo as Journeyer
  • ivan certified davem as Master

Others have certified ivan as follows:

  • alan certified ivan as Journeyer
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  • marcelo certified ivan as Journeyer
  • rw certified ivan as Master

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