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authorKonstantin Belousov <kib@FreeBSD.org>2023-12-29 03:14:56 +0000
committerKonstantin Belousov <kib@FreeBSD.org>2024-01-11 16:46:52 +0000
commita76475313d6580cb36eb940d5730407d832246de (patch)
tree0cfdbb7969a9fa2778fef2718c544e874355b285
parent185634d86d96b836336862d80e4e454c91e3ad99 (diff)
downloadsrc-a76475313d6580cb36eb940d5730407d832246de.tar.gz
src-a76475313d6580cb36eb940d5730407d832246de.zip
mlx5(4): only detach IOV children if iov was successfully initialized
(cherry picked from commit 987446fa39e8f6887ea16ad49f00f699b2efd210)
-rw-r--r--sys/dev/mlx5/driver.h2
-rw-r--r--sys/dev/mlx5/mlx5_core/mlx5_main.c11
2 files changed, 10 insertions, 3 deletions
diff --git a/sys/dev/mlx5/driver.h b/sys/dev/mlx5/driver.h
index 9daa1235bd9c..6ebe4171a503 100644
--- a/sys/dev/mlx5/driver.h
+++ b/sys/dev/mlx5/driver.h
@@ -736,6 +736,8 @@ struct mlx5_core_dev {
bool dump_copyout;
struct mtx dump_lock;
+ bool iov_pf;
+
struct sysctl_ctx_list sysctl_ctx;
int msix_eqvec;
int pwr_status;
diff --git a/sys/dev/mlx5/mlx5_core/mlx5_main.c b/sys/dev/mlx5/mlx5_core/mlx5_main.c
index f6dc1158f085..6b9b63a24714 100644
--- a/sys/dev/mlx5/mlx5_core/mlx5_main.c
+++ b/sys/dev/mlx5/mlx5_core/mlx5_main.c
@@ -1719,7 +1719,9 @@ static int init_one(struct pci_dev *pdev,
pci_iov_schema_add_uint64(vf_schema, iov_port_guid_name,
0, 0);
err = pci_iov_attach(bsddev, pf_schema, vf_schema);
- if (err != 0) {
+ if (err == 0) {
+ dev->iov_pf = true;
+ } else {
device_printf(bsddev,
"Failed to initialize SR-IOV support, error %d\n",
err);
@@ -1753,8 +1755,11 @@ static void remove_one(struct pci_dev *pdev)
struct mlx5_priv *priv = &dev->priv;
#ifdef PCI_IOV
- pci_iov_detach(pdev->dev.bsddev);
- mlx5_eswitch_disable_sriov(priv->eswitch);
+ if (dev->iov_pf) {
+ pci_iov_detach(pdev->dev.bsddev);
+ mlx5_eswitch_disable_sriov(priv->eswitch);
+ dev->iov_pf = false;
+ }
#endif
if (mlx5_unload_one(dev, priv, true)) {