diff options
| author | Alvaro Karsz <alvaro.karsz@solid-run.com> | 2023-05-02 15:10:48 +0200 |
|---|---|---|
| committer | Michael S. Tsirkin <mst@redhat.com> | 2023-06-27 16:47:08 +0200 |
| commit | ef9da01c121120f89d89b2bdde59a23bf507a39f (patch) | |
| tree | ba3405637b00220dc0923c8cc96f8d19bbc76a5b /drivers/vdpa/solidrun | |
| parent | vdpa: solidrun: constify pointers to hwmon_channel_info (diff) | |
| download | linux-ef9da01c121120f89d89b2bdde59a23bf507a39f.tar.xz linux-ef9da01c121120f89d89b2bdde59a23bf507a39f.zip | |
vdpa/snet: implement the resume vDPA callback
The callback sends a resume command to the DPU through
the control mechanism.
Signed-off-by: Alvaro Karsz <alvaro.karsz@solid-run.com>
Message-Id: <20230502131048.61134-1-alvaro.karsz@solid-run.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Acked-by: Jason Wang <jasowang@redhat.com>
Diffstat (limited to 'drivers/vdpa/solidrun')
| -rw-r--r-- | drivers/vdpa/solidrun/snet_ctrl.c | 6 | ||||
| -rw-r--r-- | drivers/vdpa/solidrun/snet_main.c | 15 | ||||
| -rw-r--r-- | drivers/vdpa/solidrun/snet_vdpa.h | 1 |
3 files changed, 22 insertions, 0 deletions
diff --git a/drivers/vdpa/solidrun/snet_ctrl.c b/drivers/vdpa/solidrun/snet_ctrl.c index 3858738643b4..3cef2571d15d 100644 --- a/drivers/vdpa/solidrun/snet_ctrl.c +++ b/drivers/vdpa/solidrun/snet_ctrl.c @@ -16,6 +16,7 @@ enum snet_ctrl_opcodes { SNET_CTRL_OP_DESTROY = 1, SNET_CTRL_OP_READ_VQ_STATE, SNET_CTRL_OP_SUSPEND, + SNET_CTRL_OP_RESUME, }; #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); } + +int snet_resume_dev(struct snet *snet) +{ + return snet_send_ctrl_msg(snet, SNET_CTRL_OP_RESUME, 0); +} diff --git a/drivers/vdpa/solidrun/snet_main.c b/drivers/vdpa/solidrun/snet_main.c index cdcd84ce4f5a..99428a04068d 100644 --- a/drivers/vdpa/solidrun/snet_main.c +++ b/drivers/vdpa/solidrun/snet_main.c @@ -509,6 +509,20 @@ static int snet_suspend(struct vdpa_device *vdev) 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 = { .set_vq_address = snet_set_vq_address, .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, .set_config = snet_set_config, .suspend = snet_suspend, + .resume = snet_resume, }; static int psnet_open_pf_bar(struct pci_dev *pdev, struct psnet *psnet) diff --git a/drivers/vdpa/solidrun/snet_vdpa.h b/drivers/vdpa/solidrun/snet_vdpa.h index 3c78d4e7d485..36ac285835ea 100644 --- a/drivers/vdpa/solidrun/snet_vdpa.h +++ b/drivers/vdpa/solidrun/snet_vdpa.h @@ -204,5 +204,6 @@ void snet_ctrl_clear(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_suspend_dev(struct snet *snet); +int snet_resume_dev(struct snet *snet); #endif //_SNET_VDPA_H_ |