> -----Original Message----- > From: Bing Zhao <bi...@nvidia.com> > Sent: Thursday, October 22, 2020 17:07 > To: viachesl...@mellanox.com; ma...@mellanox.com > Cc: dev@dpdk.org; Ori Kam <or...@nvidia.com>; Raslan Darawsheh > <rasl...@nvidia.com> > Subject: [PATCH v2 2/6] net/mlx5: add support for two ports hairpin mode > > In order to support hairpin between two ports, mlx5 PMD needs to implement > the functions and provide them as the function pointers. > > The bind and unbind functions are executed per port pairs. All the hairpin > queues between the two ports should have the same attributes during queues > setup. Different configurations among queue pairs from the same ports are not > supported. It is allowed that two ports only have one direction hairpin. > > In order to set up the connection between two queues, peer Rx queue HW > information must be fetched via the internal RTE API and the queue > information could be used to modify the SQ object. Then the RQ object will be > modified with the Tx queue HW information. The reverse operation is not > supported right now. > > When disconnecting the queues pair, SQ and RQ object should be reset > without any peer HW information. The unbinding operation will try to > disconnect all Tx queues from the port from the Rx queues of the peer port. > > Tx explicit mode attribute will be saved and used when creating a hairpin > flow. > > Signed-off-by: Bing Zhao <bi...@nvidia.com> Acked-by: Viacheslav Ovsiienko <viachesl...@nvidia.com>
> --- > drivers/net/mlx5/linux/mlx5_os.c | 10 + > drivers/net/mlx5/mlx5.h | 19 ++ > drivers/net/mlx5/mlx5_rxtx.h | 2 + > drivers/net/mlx5/mlx5_trigger.c | 611 > ++++++++++++++++++++++++++++++++++++++- > 4 files changed, 640 insertions(+), 2 deletions(-) >
