Commit 99e4e102 authored by Siva Reddy Kallam's avatar Siva Reddy Kallam Committed by Leon Romanovsky
Browse files

RDMA/bng_re: Add basic debugfs infrastructure 



Add basic debugfs infrastructure for Broadcom next generation
controller.

Signed-off-by: default avatarSiva Reddy Kallam <siva.kallam@broadcom.com>
Link: https://patch.msgid.link/20251117171136.128193-8-siva.kallam@broadcom.com


Reviewed-by: default avatarUsman Ansari <usman.ansari@broadcom.com>
Signed-off-by: default avatarLeon Romanovsky <leon@kernel.org>
parent 53c6ee7d

drivers/infiniband/hw/bng_re/Makefile

+2 −1
Original line number Diff line number Diff line
@@ -4,4 +4,5 @@ ccflags-y := -I $(srctree)/drivers/net/ethernet/broadcom/bnge -I $(srctree)/driv 
obj-$(CONFIG_INFINIBAND_BNG_RE) += bng_re.o



bng_re-y := bng_dev.o bng_fw.o \

	    bng_res.o bng_sp.o
 
	    bng_res.o bng_sp.o \

	    bng_debugfs.o

drivers/infiniband/hw/bng_re/bng_debugfs.c

0 → 100644
+39 −0
Original line number Diff line number Diff line 
// SPDX-License-Identifier: GPL-2.0

// Copyright (c) 2025 Broadcom.

#include <linux/debugfs.h>

#include <linux/pci.h>



#include <rdma/ib_verbs.h>



#include "bng_res.h"

#include "bng_fw.h"

#include "bnge.h"

#include "bnge_auxr.h"

#include "bng_re.h"

#include "bng_debugfs.h"



static struct dentry *bng_re_debugfs_root;



void bng_re_debugfs_add_pdev(struct bng_re_dev *rdev)

{

	struct pci_dev *pdev = rdev->aux_dev->pdev;



	rdev->dbg_root =

		debugfs_create_dir(dev_name(&pdev->dev), bng_re_debugfs_root);

}



void bng_re_debugfs_rem_pdev(struct bng_re_dev *rdev)

{

	debugfs_remove_recursive(rdev->dbg_root);

	rdev->dbg_root = NULL;

}



void bng_re_register_debugfs(void)

{

	bng_re_debugfs_root = debugfs_create_dir("bng_re", NULL);

}



void bng_re_unregister_debugfs(void)

{

	debugfs_remove(bng_re_debugfs_root);

}

drivers/infiniband/hw/bng_re/bng_debugfs.h

0 → 100644
+12 −0
Original line number Diff line number Diff line 
/* SPDX-License-Identifier: GPL-2.0 */

// Copyright (c) 2025 Broadcom.



#ifndef __BNG_RE_DEBUGFS__

#define __BNG_RE_DEBUGFS__



void bng_re_debugfs_add_pdev(struct bng_re_dev *rdev);

void bng_re_debugfs_rem_pdev(struct bng_re_dev *rdev);



void bng_re_register_debugfs(void);

void bng_re_unregister_debugfs(void);

#endif

drivers/infiniband/hw/bng_re/bng_dev.c

+12 −0
Original line number Diff line number Diff line
@@ -14,6 +14,7 @@ 
#include "bnge_auxr.h"

#include "bng_re.h"

#include "bnge_hwrm.h"

#include "bng_debugfs.h"



MODULE_AUTHOR("Siva Reddy Kallam <siva.kallam@broadcom.com>");

MODULE_DESCRIPTION(BNG_RE_DESC);
@@ -215,6 +216,7 @@ static void bng_re_query_hwrm_version(struct bng_re_dev *rdev) 


static void bng_re_dev_uninit(struct bng_re_dev *rdev)

{

	bng_re_debugfs_rem_pdev(rdev);

	bng_re_disable_rcfw_channel(&rdev->rcfw);

	bng_re_net_ring_free(rdev, rdev->rcfw.creq.ring_id,

			     RING_ALLOC_REQ_RING_TYPE_NQ);
@@ -314,6 +316,9 @@ static int bng_re_dev_init(struct bng_re_dev *rdev) 
	rc = bng_re_get_dev_attr(&rdev->rcfw);

	if (rc)

		goto disable_rcfw;



	bng_re_debugfs_add_pdev(rdev);



	return 0;

disable_rcfw:

	bng_re_disable_rcfw_channel(&rdev->rcfw);
@@ -419,17 +424,24 @@ static int __init bng_re_mod_init(void) 
	int rc;





	bng_re_register_debugfs();



	rc = auxiliary_driver_register(&bng_re_driver);

	if (rc) {

		pr_err("%s: Failed to register auxiliary driver\n",

		       KBUILD_MODNAME);

		goto unreg_debugfs;

	}

	return 0;

unreg_debugfs:

	bng_re_unregister_debugfs();

	return rc;

}



static void __exit bng_re_mod_exit(void)

{

	auxiliary_driver_unregister(&bng_re_driver);

	bng_re_unregister_debugfs();

}



module_init(bng_re_mod_init);

drivers/infiniband/hw/bng_re/bng_re.h

+1 −0
Original line number Diff line number Diff line
@@ -75,6 +75,7 @@ struct bng_re_dev { 
	struct bng_re_nq_record		*nqr;

	/* Device Resources */

	struct bng_re_dev_attr		*dev_attr;

	struct dentry			*dbg_root;

};



#endif