Commit ef9da01c authored by Alvaro Karsz's avatar Alvaro Karsz Committed by Michael S. Tsirkin
Browse files

vdpa/snet: implement the resume vDPA callback 



The callback sends a resume command to the DPU through
the control mechanism.

Signed-off-by: default avatarAlvaro Karsz <alvaro.karsz@solid-run.com>
Message-Id: <20230502131048.61134-1-alvaro.karsz@solid-run.com>
Signed-off-by: default avatarMichael S. Tsirkin <mst@redhat.com>
Acked-by: default avatarJason Wang <jasowang@redhat.com>
parent 47b60ec7

drivers/vdpa/solidrun/snet_ctrl.c

+6 −0
Original line number Original line Diff line number Diff line
@@ -16,6 +16,7 @@ enum snet_ctrl_opcodes { 
	SNET_CTRL_OP_DESTROY = 1,

	SNET_CTRL_OP_DESTROY = 1,

	SNET_CTRL_OP_READ_VQ_STATE,

	SNET_CTRL_OP_READ_VQ_STATE,

	SNET_CTRL_OP_SUSPEND,

	SNET_CTRL_OP_SUSPEND,

	SNET_CTRL_OP_RESUME,

};

};





#define SNET_CTRL_TIMEOUT	        2000000

#define SNET_CTRL_TIMEOUT	        2000000
@@ -328,3 +329,8 @@ int snet_suspend_dev(struct snet *snet) 
{

{

	return snet_send_ctrl_msg(snet, SNET_CTRL_OP_SUSPEND, 0);

	return snet_send_ctrl_msg(snet, SNET_CTRL_OP_SUSPEND, 0);

}

}



int snet_resume_dev(struct snet *snet)

{

	return snet_send_ctrl_msg(snet, SNET_CTRL_OP_RESUME, 0);

}

drivers/vdpa/solidrun/snet_main.c

+15 −0
Original line number Original line Diff line number Diff line
@@ -509,6 +509,20 @@ static int snet_suspend(struct vdpa_device *vdev) 
	return ret;

	return ret;

}

}





static int snet_resume(struct vdpa_device *vdev)

{

	struct snet *snet = vdpa_to_snet(vdev);

	int ret;



	ret = snet_resume_dev(snet);

	if (ret)

		SNET_ERR(snet->pdev, "SNET[%u] resume failed, err: %d\n", snet->sid, ret);

	else

		SNET_DBG(snet->pdev, "Resume SNET[%u] device\n", snet->sid);



	return ret;

}



static const struct vdpa_config_ops snet_config_ops = {

static const struct vdpa_config_ops snet_config_ops = {

	.set_vq_address         = snet_set_vq_address,

	.set_vq_address         = snet_set_vq_address,

	.set_vq_num             = snet_set_vq_num,

	.set_vq_num             = snet_set_vq_num,
@@ -536,6 +550,7 @@ static const struct vdpa_config_ops snet_config_ops = { 
	.get_config             = snet_get_config,

	.get_config             = snet_get_config,

	.set_config             = snet_set_config,

	.set_config             = snet_set_config,

	.suspend		= snet_suspend,

	.suspend		= snet_suspend,

	.resume			= snet_resume,

};

};





static int psnet_open_pf_bar(struct pci_dev *pdev, struct psnet *psnet)

static int psnet_open_pf_bar(struct pci_dev *pdev, struct psnet *psnet)

drivers/vdpa/solidrun/snet_vdpa.h

+1 −0
Original line number Original line Diff line number Diff line
@@ -204,5 +204,6 @@ void snet_ctrl_clear(struct snet *snet); 
int snet_destroy_dev(struct snet *snet);

int snet_destroy_dev(struct snet *snet);

int snet_read_vq_state(struct snet *snet, u16 idx, struct vdpa_vq_state *state);

int snet_read_vq_state(struct snet *snet, u16 idx, struct vdpa_vq_state *state);

int snet_suspend_dev(struct snet *snet);

int snet_suspend_dev(struct snet *snet);

int snet_resume_dev(struct snet *snet);





#endif //_SNET_VDPA_H_
 
#endif //_SNET_VDPA_H_