diff options
Diffstat (limited to 'drivers/net/ethernet/microsoft/mana/gdma_main.c')
| -rw-r--r-- | drivers/net/ethernet/microsoft/mana/gdma_main.c | 55 |
1 files changed, 48 insertions, 7 deletions
diff --git a/drivers/net/ethernet/microsoft/mana/gdma_main.c b/drivers/net/ethernet/microsoft/mana/gdma_main.c index ca4ed58f1206..550be6dc305d 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); @@ -174,7 +177,7 @@ int mana_gd_send_request(struct gdma_context *gc, u32 req_len, const void *req, return mana_hwc_send_request(hwc, req_len, req, resp_len, resp); } -EXPORT_SYMBOL_NS(mana_gd_send_request, NET_MANA); +EXPORT_SYMBOL_NS(mana_gd_send_request, "NET_MANA"); int mana_gd_alloc_memory(struct gdma_context *gc, unsigned int length, struct gdma_mem_info *gmi) @@ -713,7 +716,7 @@ int mana_gd_destroy_dma_region(struct gdma_context *gc, u64 dma_region_handle) return 0; } -EXPORT_SYMBOL_NS(mana_gd_destroy_dma_region, NET_MANA); +EXPORT_SYMBOL_NS(mana_gd_destroy_dma_region, "NET_MANA"); static int mana_gd_create_dma_region(struct gdma_dev *gd, struct gdma_mem_info *gmi) @@ -817,7 +820,7 @@ free_q: kfree(queue); return err; } -EXPORT_SYMBOL_NS(mana_gd_create_mana_eq, NET_MANA); +EXPORT_SYMBOL_NS(mana_gd_create_mana_eq, "NET_MANA"); int mana_gd_create_mana_wq_cq(struct gdma_dev *gd, const struct gdma_queue_spec *spec, @@ -894,7 +897,7 @@ void mana_gd_destroy_queue(struct gdma_context *gc, struct gdma_queue *queue) mana_gd_free_memory(gmi); kfree(queue); } -EXPORT_SYMBOL_NS(mana_gd_destroy_queue, NET_MANA); +EXPORT_SYMBOL_NS(mana_gd_destroy_queue, "NET_MANA"); int mana_gd_verify_vf_version(struct pci_dev *pdev) { @@ -971,7 +974,7 @@ int mana_gd_register_device(struct gdma_dev *gd) return 0; } -EXPORT_SYMBOL_NS(mana_gd_register_device, NET_MANA); +EXPORT_SYMBOL_NS(mana_gd_register_device, "NET_MANA"); int mana_gd_deregister_device(struct gdma_dev *gd) { @@ -1002,7 +1005,7 @@ int mana_gd_deregister_device(struct gdma_dev *gd) return err; } -EXPORT_SYMBOL_NS(mana_gd_deregister_device, NET_MANA); +EXPORT_SYMBOL_NS(mana_gd_deregister_device, "NET_MANA"); u32 mana_gd_wq_avail_space(struct gdma_queue *wq) { @@ -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); |