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READ ME FISRT
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ATM (i)Chip IA Linux Driver Source
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--------------------------------------------------------------------------------
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Read This Before You Begin!
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--------------------------------------------------------------------------------
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Description
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-----------
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This is the README file for the Interphase PCI ATM (i)Chip IA Linux driver
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source release.
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The features and limitations of this driver are as follows:
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- A single VPI (VPI value of 0) is supported.
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- Supports 4K VCs for the server board (with 512K control memory) and 1K
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VCs for the client board (with 128K control memory).
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- UBR, ABR and CBR service categories are supported.
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- Only AAL5 is supported.
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- Supports setting of PCR on the VCs.
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- Multiple adapters in a system are supported.
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- All variants of Interphase ATM PCI (i)Chip adapter cards are supported,
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including x575 (OC3, control memory 128K , 512K and packet memory 128K,
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512K and 1M), x525 (UTP25) and x531 (DS3 and E3). See
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http://www.iphase.com/site/iphase-web/?epi_menuItemID=e196f04b4b3b40502f150882e21046a0
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for details.
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- Only x86 platforms are supported.
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- SMP is supported.
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Before You Start
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----------------
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Installation
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------------
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1. Installing the adapters in the system
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To install the ATM adapters in the system, follow the steps below.
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a. Login as root.
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b. Shut down the system and power off the system.
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c. Install one or more ATM adapters in the system.
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d. Connect each adapter to a port on an ATM switch. The green 'Link'
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LED on the front panel of the adapter will be on if the adapter is
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connected to the switch properly when the system is powered up.
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e. Power on and boot the system.
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2. [ Removed ]
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3. Rebuild kernel with ABR support
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[ a. and b. removed ]
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c. Reconfigure the kernel, choose the Interphase ia driver through "make
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menuconfig" or "make xconfig".
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d. Rebuild the kernel, loadable modules and the atm tools.
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e. Install the new built kernel and modules and reboot.
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4. Load the adapter hardware driver (ia driver) if it is built as a module
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a. Login as root.
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b. Change directory to /lib/modules/<kernel-version>/atm.
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c. Run "insmod suni.o;insmod iphase.o"
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The yellow 'status' LED on the front panel of the adapter will blink
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while the driver is loaded in the system.
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d. To verify that the 'ia' driver is loaded successfully, run the
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following command:
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cat /proc/atm/devices
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If the driver is loaded successfully, the output of the command will
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be similar to the following lines:
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Itf Type ESI/"MAC"addr AAL(TX,err,RX,err,drop) ...
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0 ia xxxxxxxxx 0 ( 0 0 0 0 0 ) 5 ( 0 0 0 0 0 )
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You can also check the system log file /var/log/messages for messages
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related to the ATM driver.
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5. Ia Driver Configuration
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5.1 Configuration of adapter buffers
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The (i)Chip boards have 3 different packet RAM size variants: 128K, 512K and
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1M. The RAM size decides the number of buffers and buffer size. The default
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size and number of buffers are set as following:
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Total Rx RAM Tx RAM Rx Buf Tx Buf Rx buf Tx buf
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RAM size size size size size cnt cnt
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-------- ------ ------ ------ ------ ------ ------
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128K 64K 64K 10K 10K 6 6
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512K 256K 256K 10K 10K 25 25
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1M 512K 512K 10K 10K 51 51
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These setting should work well in most environments, but can be
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changed by typing the following command:
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insmod <IA_DIR>/ia.o IA_RX_BUF=<RX_CNT> IA_RX_BUF_SZ=<RX_SIZE> \
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IA_TX_BUF=<TX_CNT> IA_TX_BUF_SZ=<TX_SIZE>
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Where:
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RX_CNT = number of receive buffers in the range (1-128)
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RX_SIZE = size of receive buffers in the range (48-64K)
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TX_CNT = number of transmit buffers in the range (1-128)
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TX_SIZE = size of transmit buffers in the range (48-64K)
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1. Transmit and receive buffer size must be a multiple of 4.
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2. Care should be taken so that the memory required for the
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transmit and receive buffers is less than or equal to the
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total adapter packet memory.
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5.2 Turn on ia debug trace
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When the ia driver is built with the CONFIG_ATM_IA_DEBUG flag, the driver
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can provide more debug trace if needed. There is a bit mask variable,
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IADebugFlag, which controls the output of the traces. You can find the bit
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map of the IADebugFlag in iphase.h.
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The debug trace can be turn on through the insmod command line option, for
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example, "insmod iphase.o IADebugFlag=0xffffffff" can turn on all the debug
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traces together with loading the driver.
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6. Ia Driver Test Using ttcp_atm and PVC
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For the PVC setup, the test machines can either be connected back-to-back or
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through a switch. If connected through the switch, the switch must be
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configured for the PVC(s).
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a. For UBR test:
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At the test machine intended to receive data, type:
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ttcp_atm -r -a -s 0.100
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At the other test machine, type:
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ttcp_atm -t -a -s 0.100 -n 10000
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Run "ttcp_atm -h" to display more options of the ttcp_atm tool.
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b. For ABR test:
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It is the same as the UBR testing, but with an extra command option:
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-Pabr:max_pcr=<xxx>
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where:
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xxx = the maximum peak cell rate, from 170 - 353207.
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This option must be set on both the machines.
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c. For CBR test:
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It is the same as the UBR testing, but with an extra command option:
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-Pcbr:max_pcr=<xxx>
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where:
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xxx = the maximum peak cell rate, from 170 - 353207.
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This option may only be set on the transmit machine.
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OUTSTANDING ISSUES
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------------------
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Contact Information
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-------------------
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Customer Support:
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United States: Telephone: (214) 654-5555
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Fax: (214) 654-5500
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E-Mail: intouch@iphase.com
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Europe: Telephone: 33 (0)1 41 15 44 00
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Fax: 33 (0)1 41 15 12 13
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World Wide Web: http://www.iphase.com
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Anonymous FTP: ftp.iphase.com
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