Thread (11 messages) 11 messages, 3 authors, 2021-04-08
STALE1884d LANDED: 1 (0M)

[PATCH 3/5] vdpa/mlx5: Retrieve BAR address suitable any function

From: Eli Cohen <hidden>
Date: 2021-04-08 09:11:07
Also in: stable
Subsystem: mellanox mlx5 vdpa driver, the rest, virtio core · Maintainers: Dragos Tatulea, Linus Torvalds, "Michael S. Tsirkin", Jason Wang

struct mlx5_core_dev has a bar_addr field that contains the correct bar
address for the function regardless of whether it is pci function or sub
function. Use it.

Fixes: 1958fc2f0712 ("net/mlx5: SF, Add auxiliary device driver")
Signed-off-by: Eli Cohen <redacted>
Reviewed-by: Parav Pandit <redacted>
---
 drivers/vdpa/mlx5/core/resources.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/drivers/vdpa/mlx5/core/resources.c b/drivers/vdpa/mlx5/core/resources.c
index 96e6421c5d1c..6521cbd0f5c2 100644
--- a/drivers/vdpa/mlx5/core/resources.c
+++ b/drivers/vdpa/mlx5/core/resources.c
@@ -246,7 +246,8 @@ int mlx5_vdpa_alloc_resources(struct mlx5_vdpa_dev *mvdev)
 	if (err)
 		goto err_key;
 
-	kick_addr = pci_resource_start(mdev->pdev, 0) + offset;
+	kick_addr = mdev->bar_addr + offset;
+
 	res->kick_addr = ioremap(kick_addr, PAGE_SIZE);
 	if (!res->kick_addr) {
 		err = -ENOMEM;
-- 
2.30.1
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