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

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Date:   Thu, 8 Apr 2021 12:10:45 +0300
From:   Eli Cohen <elic@...dia.com>
To:     <mst@...hat.com>, <jasowang@...hat.com>, <parav@...dia.com>,
        <si-wei.liu@...cle.com>,
        <virtualization@...ts.linux-foundation.org>,
        <netdev@...r.kernel.org>
CC:     <stable@...r.kernel.org>, Eli Cohen <elic@...dia.com>
Subject: [PATCH 3/5] vdpa/mlx5: Retrieve BAR address suitable any function

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 <elic@...dia.com>
Reviewed-by: Parav Pandit <parav@...dia.com>
---
 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