diff options
| author | Zhu Lingshan <lingshan.zhu@intel.com> | 2024-02-02 19:38:58 +0300 |
|---|---|---|
| committer | Michael S. Tsirkin <mst@redhat.com> | 2024-03-19 09:45:50 +0300 |
| commit | 36503e5e06a986ae9dbf042589d0ef6e4cbfe15a (patch) | |
| tree | 9c3cdd85cd06d050665f4429d0fd8ccaf4d7cb02 /drivers/vdpa | |
| parent | 0a926fc972532788719fd03c4a44724ec23c1875 (diff) | |
| download | linux-36503e5e06a986ae9dbf042589d0ef6e4cbfe15a.tar.xz | |
vDPA/ifcvf: implement vdpa_config_ops.get_vq_size
This commit implements vdpa_ops.get_vq_size to report
the size of a specific virtqueue.
Signed-off-by: Zhu Lingshan <lingshan.zhu@intel.com>
Message-Id: <20240202163905.8834-4-lingshan.zhu@intel.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Diffstat (limited to 'drivers/vdpa')
| -rw-r--r-- | drivers/vdpa/ifcvf/ifcvf_base.c | 5 | ||||
| -rw-r--r-- | drivers/vdpa/ifcvf/ifcvf_base.h | 1 | ||||
| -rw-r--r-- | drivers/vdpa/ifcvf/ifcvf_main.c | 9 |
3 files changed, 14 insertions, 1 deletions
diff --git a/drivers/vdpa/ifcvf/ifcvf_base.c b/drivers/vdpa/ifcvf/ifcvf_base.c index 060f837a4f9f..d78621fdd621 100644 --- a/drivers/vdpa/ifcvf/ifcvf_base.c +++ b/drivers/vdpa/ifcvf/ifcvf_base.c @@ -69,10 +69,13 @@ static int ifcvf_read_config_range(struct pci_dev *dev, return 0; } -static u16 ifcvf_get_vq_size(struct ifcvf_hw *hw, u16 qid) +u16 ifcvf_get_vq_size(struct ifcvf_hw *hw, u16 qid) { u16 queue_size; + if (qid >= hw->nr_vring) + return 0; + vp_iowrite16(qid, &hw->common_cfg->queue_select); queue_size = vp_ioread16(&hw->common_cfg->queue_size); diff --git a/drivers/vdpa/ifcvf/ifcvf_base.h b/drivers/vdpa/ifcvf/ifcvf_base.h index b57849c643f6..5a4be3a4f939 100644 --- a/drivers/vdpa/ifcvf/ifcvf_base.h +++ b/drivers/vdpa/ifcvf/ifcvf_base.h @@ -131,4 +131,5 @@ void ifcvf_set_vq_ready(struct ifcvf_hw *hw, u16 qid, bool ready); void ifcvf_set_driver_features(struct ifcvf_hw *hw, u64 features); u64 ifcvf_get_driver_features(struct ifcvf_hw *hw); u16 ifcvf_get_max_vq_size(struct ifcvf_hw *hw); +u16 ifcvf_get_vq_size(struct ifcvf_hw *hw, u16 qid); #endif /* _IFCVF_H_ */ diff --git a/drivers/vdpa/ifcvf/ifcvf_main.c b/drivers/vdpa/ifcvf/ifcvf_main.c index e98fa8100f3c..cd4e9cb020c4 100644 --- a/drivers/vdpa/ifcvf/ifcvf_main.c +++ b/drivers/vdpa/ifcvf/ifcvf_main.c @@ -597,6 +597,14 @@ static int ifcvf_vdpa_get_vq_irq(struct vdpa_device *vdpa_dev, return -EINVAL; } +static u16 ifcvf_vdpa_get_vq_size(struct vdpa_device *vdpa_dev, + u16 qid) +{ + struct ifcvf_hw *vf = vdpa_to_vf(vdpa_dev); + + return ifcvf_get_vq_size(vf, qid); +} + static struct vdpa_notification_area ifcvf_get_vq_notification(struct vdpa_device *vdpa_dev, u16 idx) { @@ -632,6 +640,7 @@ static const struct vdpa_config_ops ifc_vdpa_ops = { .set_vq_num = ifcvf_vdpa_set_vq_num, .set_vq_address = ifcvf_vdpa_set_vq_address, .get_vq_irq = ifcvf_vdpa_get_vq_irq, + .get_vq_size = ifcvf_vdpa_get_vq_size, .kick_vq = ifcvf_vdpa_kick_vq, .get_generation = ifcvf_vdpa_get_generation, .get_device_id = ifcvf_vdpa_get_device_id, |