git: 987446fa39e8 - main - mlx5(4): only detach IOV children if iov was successfully initialized
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Date: Fri, 05 Jan 2024 04:53:25 UTC
The branch main has been updated by kib: URL: https://cgit.FreeBSD.org/src/commit/?id=987446fa39e8f6887ea16ad49f00f699b2efd210 commit 987446fa39e8f6887ea16ad49f00f699b2efd210 Author: Konstantin Belousov <kib@FreeBSD.org> AuthorDate: 2023-12-29 03:14:56 +0000 Commit: Konstantin Belousov <kib@FreeBSD.org> CommitDate: 2024-01-05 04:52:39 +0000 mlx5(4): only detach IOV children if iov was successfully initialized Reported by: jwd Sponsored by: NVidia networking MFC after: 1 week --- sys/dev/mlx5/driver.h | 2 ++ sys/dev/mlx5/mlx5_core/mlx5_main.c | 11 ++++++++--- 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)) {