# HSSI ethernet mac #
## SYNOPSIS ##
```console
hssimac [-h] --pcie-address PCIE_ADDRESS [--port PORT]
```
## DESCRIPTION ##
The ```hssimac``` tool provides Maximum TX and RX frame size.
### OPTIONAL ARGUMENTS ##
`-h, --help`
Prints usage information
`--pcie-address PCIE_ADDRESS, -P PCIE_ADDRESS`
The PCIe address of the desired fpga in ssss:bb:dd.f format. sbdf of device to program (e.g. 04:00.0 or 0000:04:00.0).
`--port PORT`
hssi port number.
## EXAMPLES ##
`hssimac --pcie-address 0000:04:00.0 --port 1`
prints Maximum TX and RX frame size for port 1.
## Revision History ##
| Date | Intel Acceleration Stack Version | Changes Made |
|:------|----------------------------|:--------------|
|2018.05.21| DCP 1.1 Beta (works with Quartus Prime Pro 17.1.1) | Made the following changes:
Expanded descriptions of `nlb_mode_3` and`dma_afu` tests.
Added a second example command. |