diff options
Diffstat (limited to 'drivers/net/ethernet/microsoft/mana/gdma_main.c')
| -rw-r--r-- | drivers/net/ethernet/microsoft/mana/gdma_main.c | 43 |
1 files changed, 42 insertions, 1 deletions
diff --git a/drivers/net/ethernet/microsoft/mana/gdma_main.c b/drivers/net/ethernet/microsoft/mana/gdma_main.c index ca4ed58f1206d..e97af7ac2bb2a 100644 --- a/drivers/net/ethernet/microsoft/mana/gdma_main.c +++ b/drivers/net/ethernet/microsoft/mana/gdma_main.c @@ -1,6 +1,7 @@ // SPDX-License-Identifier: GPL-2.0 OR BSD-3-Clause /* Copyright (c) 2021, Microsoft Corporation. */ +#include <linux/debugfs.h> #include <linux/module.h> #include <linux/pci.h> #include <linux/utsname.h> @@ -8,6 +9,8 @@ #include <net/mana/mana.h> +struct dentry *mana_debugfs_root; + static u32 mana_gd_r32(struct gdma_context *g, u64 offset) { return readl(g->bar0_va + offset); @@ -1516,6 +1519,12 @@ static int mana_gd_probe(struct pci_dev *pdev, const struct pci_device_id *ent) gc->bar0_va = bar0_va; gc->dev = &pdev->dev; + if (gc->is_pf) + gc->mana_pci_debugfs = debugfs_create_dir("0", mana_debugfs_root); + else + gc->mana_pci_debugfs = debugfs_create_dir(pci_slot_name(pdev->slot), + mana_debugfs_root); + err = mana_gd_setup(pdev); if (err) goto unmap_bar; @@ -1529,6 +1538,13 @@ static int mana_gd_probe(struct pci_dev *pdev, const struct pci_device_id *ent) cleanup_gd: mana_gd_cleanup(pdev); unmap_bar: + /* + * at this point we know that the other debugfs child dir/files + * are either not yet created or are already cleaned up. + * The pci debugfs folder clean-up now, will only be cleaning up + * adapter-MTU file and apc->mana_pci_debugfs folder. + */ + debugfs_remove_recursive(gc->mana_pci_debugfs); pci_iounmap(pdev, bar0_va); free_gc: pci_set_drvdata(pdev, NULL); @@ -1549,6 +1565,8 @@ static void mana_gd_remove(struct pci_dev *pdev) mana_gd_cleanup(pdev); + debugfs_remove_recursive(gc->mana_pci_debugfs); + pci_iounmap(pdev, gc->bar0_va); vfree(gc); @@ -1600,6 +1618,8 @@ static void mana_gd_shutdown(struct pci_dev *pdev) mana_gd_cleanup(pdev); + debugfs_remove_recursive(gc->mana_pci_debugfs); + pci_disable_device(pdev); } @@ -1619,7 +1639,28 @@ static struct pci_driver mana_driver = { .shutdown = mana_gd_shutdown, }; -module_pci_driver(mana_driver); +static int __init mana_driver_init(void) +{ + int err; + + mana_debugfs_root = debugfs_create_dir("mana", NULL); + + err = pci_register_driver(&mana_driver); + if (err) + debugfs_remove(mana_debugfs_root); + + return err; +} + +static void __exit mana_driver_exit(void) +{ + debugfs_remove(mana_debugfs_root); + + pci_unregister_driver(&mana_driver); +} + +module_init(mana_driver_init); +module_exit(mana_driver_exit); MODULE_DEVICE_TABLE(pci, mana_id_table); |