kernel/linux.git/drivers/vdpa/solidrun/snet_ctrl.c, branch v6.18.21

vdpa/snet: implement the resume vDPA callback

2023-06-27T14:47:08+00:00

The callback sends a resume command to the DPU through the control mechanism. Signed-off-by: Alvaro Karsz Message-Id: <20230502131048.61134-1-alvaro.karsz@solid-run.com> Signed-off-by: Michael S. Tsirkin Acked-by: Jason Wang

vdpa/snet: support the suspend vDPA callback

2023-04-21T07:02:34+00:00

When suspend is called, the driver sends a suspend command to the DPU through the control mechanism. Signed-off-by: Alvaro Karsz Message-Id: <20230413073337.31367-3-alvaro.karsz@solid-run.com> Signed-off-by: Michael S. Tsirkin Acked-by: Jason Wang

vdpa/snet: support getting and setting VQ state

2023-04-21T07:02:34+00:00

This patch adds the get_vq_state and set_vq_state vDPA callbacks. In order to get the VQ state, the state needs to be read from the DPU. In order to allow that, the old messaging mechanism is replaced with a new, flexible control mechanism. This mechanism allows to read data from the DPU. The mechanism can be used if the negotiated config version is 2 or higher. If the new mechanism is used when the config version is 1, it will call snet_send_ctrl_msg_old, which is config 1 compatible. Signed-off-by: Alvaro Karsz Message-Id: <20230413073337.31367-2-alvaro.karsz@solid-run.com> Signed-off-by: Michael S. Tsirkin Acked-by: Jason Wang