Merging upstream version 6.9.7.

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

3 files changed, 22 insertions, 6 deletions

diff --git a/drivers/vdpa/ifcvf/ifcvf_base.c b/drivers/vdpa/ifcvf/ifcvf_base.c
index 060f837a4f..472daa588a 100644
--- a/drivers/vdpa/ifcvf/ifcvf_base.c
+++ b/drivers/vdpa/ifcvf/ifcvf_base.c
@@ -69,20 +69,19 @@ 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);
 
 	return queue_size;
 }
 
-/* This function returns the max allowed safe size for
- * all virtqueues. It is the minimal size that can be
- * suppprted by all virtqueues.
- */
 u16 ifcvf_get_max_vq_size(struct ifcvf_hw *hw)
 {
 	u16 queue_size, max_size, qid;
@@ -94,7 +93,7 @@ u16 ifcvf_get_max_vq_size(struct ifcvf_hw *hw)
 		if (!queue_size)
 			continue;
 
-		max_size = min(queue_size, max_size);
+		max_size = max(queue_size, max_size);
 	}
 
 	return max_size;
diff --git a/drivers/vdpa/ifcvf/ifcvf_base.h b/drivers/vdpa/ifcvf/ifcvf_base.h
index b57849c643..0f34771702 100644
--- a/drivers/vdpa/ifcvf/ifcvf_base.h
+++ b/drivers/vdpa/ifcvf/ifcvf_base.h
@@ -28,6 +28,7 @@
 #define IFCVF_PCI_MAX_RESOURCE	6
 
 #define IFCVF_LM_BAR			4
+#define IFCVF_MIN_VQ_SIZE		64
 
 #define IFCVF_ERR(pdev, fmt, ...)	dev_err(&pdev->dev, fmt, ##__VA_ARGS__)
 #define IFCVF_DBG(pdev, fmt, ...)	dev_dbg(&pdev->dev, fmt, ##__VA_ARGS__)
@@ -131,4 +132,5 @@ 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 e98fa8100f..80d0a04608 100644
--- a/drivers/vdpa/ifcvf/ifcvf_main.c
+++ b/drivers/vdpa/ifcvf/ifcvf_main.c
@@ -456,6 +456,11 @@ static u16 ifcvf_vdpa_get_vq_num_max(struct vdpa_device *vdpa_dev)
 	return ifcvf_get_max_vq_size(vf);
 }
 
+static u16 ifcvf_vdpa_get_vq_num_min(struct vdpa_device *vdpa_dev)
+{
+	return IFCVF_MIN_VQ_SIZE;
+}
+
 static int ifcvf_vdpa_get_vq_state(struct vdpa_device *vdpa_dev, u16 qid,
 				   struct vdpa_vq_state *state)
 {
@@ -597,6 +602,14 @@ 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)
 {
@@ -624,6 +637,7 @@ static const struct vdpa_config_ops ifc_vdpa_ops = {
 	.set_status	= ifcvf_vdpa_set_status,
 	.reset		= ifcvf_vdpa_reset,
 	.get_vq_num_max	= ifcvf_vdpa_get_vq_num_max,
+	.get_vq_num_min	= ifcvf_vdpa_get_vq_num_min,
 	.get_vq_state	= ifcvf_vdpa_get_vq_state,
 	.set_vq_state	= ifcvf_vdpa_set_vq_state,
 	.set_vq_cb	= ifcvf_vdpa_set_vq_cb,
@@ -632,6 +646,7 @@ 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,