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From: Mark Bloch <markb@mellanox.com> ========= Add IB representor when in switchdev mode The following series adds support for an IB (RAW Ethernet only) device representor which is created when the user switches to switchdev mode. Today when switching to switchdev mode the only representors which are created are net devices. Each netdev is a representor of a virtual function and any data sent via the representor is received on the virtual function, and any data sent via the virtual function is received by the representor. For the mlx5 driver the main use of this functionality is to be able to use Open vSwitch on the hypervisor in order to manage/control traffic from/to the virtual functions. Open vSwitch can also work with DPDK devices and not just net devices, this series exposes an IB device, which Mellanox PMD driver uses, which then can be used by Open vSwitch DPDK. An IB device representor exposes only RAW Ethernet QP capabilities and the ability to create flow rules to direct traffic to its RX queues. The state of the IB device (ACTIVE/DOWN etc..) is based on the state of the corresponding net device representor. No other RDMA/RoCE functionality is currently supported and no GID table is exposed. ========= -----BEGIN PGP SIGNATURE----- iQEcBAABAgAGBQJakH7zAAoJEEg/ir3gV/o+c/MIAMGGgNajr49+JP3t9wnrs011 +cTfAfM88HBzTlfb/COEBz+jurH2oB7ZF4RZC29S+6pR3loKKBuvbiPndE0XKjSg Ue4sOkawybmDvfo9ZiMsusOiMfTp5wsLmqJP1HRUvGMAlSBeriMTZfbiKzx5c3Ok X8cMnRIvUOtCoQaJTfKarDUn4OF8aFam4tQW8k/RAo77kTPyihb1NlGiblrcCA2E PWYAOWW3D8gvE0cr19JVgEqpKIaJ/VRyjwQ7m8XSvfBJtw1ZTO6YMXiXbWMOsRzD fx33H+n/qwJT0cnxDmSpZrR7mEk+Wr2HL92O85KDupOSgLOIlywmtIIkEAnCeaw= =Fq6m -----END PGP SIGNATURE----- Merge tag 'mlx5-updates-2018-02-23' of git://git.kernel.org/pub/scm/linux/kernel/git/mellanox/linux Saeed Mahameed says: mlx5-update-2018-02-23 (IB representors) From: Mark Bloch <markb@mellanox.com> ========= Add IB representor when in switchdev mode The following series adds support for an IB (RAW Ethernet only) device representor which is created when the user switches to switchdev mode. Today when switching to switchdev mode the only representors which are created are net devices. Each netdev is a representor of a virtual function and any data sent via the representor is received on the virtual function, and any data sent via the virtual function is received by the representor. For the mlx5 driver the main use of this functionality is to be able to use Open vSwitch on the hypervisor in order to manage/control traffic from/to the virtual functions. Open vSwitch can also work with DPDK devices and not just net devices, this series exposes an IB device, which Mellanox PMD driver uses, which then can be used by Open vSwitch DPDK. An IB device representor exposes only RAW Ethernet QP capabilities and the ability to create flow rules to direct traffic to its RX queues. The state of the IB device (ACTIVE/DOWN etc..) is based on the state of the corresponding net device representor. No other RDMA/RoCE functionality is currently supported and no GID table is exposed. ========= Signed-off-by: David S. Miller <davem@davemloft.net> |
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