Date: Fri, 10 Nov 2017 13:40:27 +0000 (UTC) From: Hans Petter Selasky <hselasky@FreeBSD.org> To: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-head@freebsd.org Subject: svn commit: r325652 - head/sys/dev/mlx5/mlx5_core Message-ID: <201711101340.vAADeRjI005536@repo.freebsd.org>
next in thread | raw e-mail | index | archive | help
Author: hselasky Date: Fri Nov 10 13:40:27 2017 New Revision: 325652 URL: https://svnweb.freebsd.org/changeset/base/325652 Log: Prevent mlx5 core from accessing host memory after shutdown by disabling PCI busmaster. Sponsored by: Mellanox Technologies MFC after: 1 week Modified: head/sys/dev/mlx5/mlx5_core/mlx5_main.c Modified: head/sys/dev/mlx5/mlx5_core/mlx5_main.c ============================================================================== --- head/sys/dev/mlx5/mlx5_core/mlx5_main.c Fri Nov 10 13:38:43 2017 (r325651) +++ head/sys/dev/mlx5/mlx5_core/mlx5_main.c Fri Nov 10 13:40:27 2017 (r325652) @@ -1134,6 +1134,12 @@ static void remove_one(struct pci_dev *pdev) kfree(dev); } +static void shutdown_one(struct pci_dev *pdev) +{ + /* prevent device from accessing host memory after shutdown */ + pci_clear_master(pdev); +} + static const struct pci_device_id mlx5_core_pci_table[] = { { PCI_VDEVICE(MELLANOX, 4113) }, /* Connect-IB */ { PCI_VDEVICE(MELLANOX, 4114) }, /* Connect-IB VF */ @@ -1175,6 +1181,7 @@ MODULE_DEVICE_TABLE(pci, mlx5_core_pci_table); static struct pci_driver mlx5_core_driver = { .name = DRIVER_NAME, .id_table = mlx5_core_pci_table, + .shutdown = shutdown_one, .probe = init_one, .remove = remove_one };
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?201711101340.vAADeRjI005536>