freebsd-dev/sys/contrib/ena-com
Marcin Wojtas d17b7d87ee Introduce NETMAP support in ENA
Mock implementation of NETMAP routines is located in ena_netmap.c/.h
files. All code is protected under the DEV_NETMAP macro. Makefile was
updated with files and flag.

As ENA driver provide own implementations of (un)likely it must be
undefined before including NETMAP headers.

ena_netmap_attach function is called on the end of NIC attach. It fills
structure with NIC configuration and callbacks. Then provides it to
netmap_attach. Similarly netmap_detach is called during ena_detach.

Three callbacks are used.
nm_register is implemented by ena_netmap_reg. It is called when user
space application open or close NIC in NETMAP mode. Current action is
recognized based on onoff parameter: true means on and false off. As
NICs rings need to be reconfigured ena_down and ena_up are reused.
When user space application wants to receive new packets from NIC
nm_rxsync is called, and when there are new packets ready for Tx
nm_txsync is called.

Differential Revision: https://reviews.freebsd.org/D21934
Submitted by: Rafal Kozik <rk@semihalf.com>
              Michal Krawczyk <mk@semihalf.com>
Obtained from: Semihalf
Sponsored by:  Amazon, Inc.
2019-10-31 15:51:18 +00:00
..
ena_defs Adjust ENA driver to the new ena-com 2019-05-30 13:01:46 +00:00
ena_admin_defs.h
ena_com.c Adjust ENA driver to the new ena-com 2019-05-30 13:01:46 +00:00
ena_com.h Adjust ENA driver to the new ena-com 2019-05-30 13:01:46 +00:00
ena_common_defs.h
ena_eth_com.c Adjust ENA driver to the new ena-com 2019-05-30 13:01:46 +00:00
ena_eth_com.h Adjust ENA driver to the new ena-com 2019-05-30 13:01:46 +00:00
ena_eth_io_defs.h
ena_plat.h Introduce NETMAP support in ENA 2019-10-31 15:51:18 +00:00
ena_regs_defs.h