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[144.49.247.16]) by smtp-relay.gmail.com with ESMTPS id 6a1803df08f44-7934ee8ba93sm8335156d6.23.2025.09.22.08.43.53 for (version=TLS1_2 cipher=ECDHE-ECDSA-AES128-GCM-SHA256 bits=128/128); Mon, 22 Sep 2025 08:43:53 -0700 (PDT) X-Relaying-Domain: broadcom.com X-CFilter-Loop: Reflected Received: by mail-qk1-f197.google.com with SMTP id af79cd13be357-82968fe9e8cso1266708185a.0 for ; Mon, 22 Sep 2025 08:43:53 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=broadcom.com; s=google; t=1758555833; x=1759160633; darn=vger.kernel.org; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:from:to:cc:subject:date :message-id:reply-to; bh=oiAUve12B6y0VXa7aGKojambByjOg98b5E/1OlA7Abs=; b=b7Er1Bh3ai3gVsMW+Cno2hhgZ03t0RnwtVRTUvlFs3C1I6PLTBgX5xJTOqIoOhSy/O tbMd/d01Or8BaBgkof33DXlQyTlL5AxsY1yp056nqEqPV9WvYSlCyOLc3DuBp2L8aUjN LJb5vu2KuWRnNxxKAl4TZ5G+Eem1VB/28exv0= X-Received: by 2002:a05:620a:3943:b0:84f:f50c:ec00 with SMTP id af79cd13be357-84ff50cec3cmr96893585a.60.1758555832854; Mon, 22 Sep 2025 08:43:52 -0700 (PDT) X-Received: by 2002:a05:620a:3943:b0:84f:f50c:ec00 with SMTP id af79cd13be357-84ff50cec3cmr96890485a.60.1758555832278; Mon, 22 Sep 2025 08:43:52 -0700 (PDT) Received: from sjs-csg-thor3-swe-29.lvn.broadcom.net044broadcom.net ([192.19.224.250]) by smtp.gmail.com with ESMTPSA id af79cd13be357-84ada77bb17sm179496785a.30.2025.09.22.08.43.50 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 22 Sep 2025 08:43:51 -0700 (PDT) From: Siva Reddy Kallam To: leonro@nvidia.com, jgg@nvidia.com Cc: linux-rdma@vger.kernel.org, netdev@vger.kernel.org, vikas.gupta@broadcom.com, selvin.xavier@broadcom.com, anand.subramanian@broadcom.com, usman.ansari@broadcom.com, Siva Reddy Kallam Subject: [PATCH v2 7/8] RDMA/bng_re: Add basic debugfs infrastructure Date: Mon, 22 Sep 2025 15:43:02 +0000 Message-Id: <20250922154303.246809-8-siva.kallam@broadcom.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20250922154303.246809-1-siva.kallam@broadcom.com> References: <20250922154303.246809-1-siva.kallam@broadcom.com> Precedence: bulk X-Mailing-List: linux-rdma@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-DetectorID-Processed: b00c1d49-9d2e-4205-b15f-d015386d3d5e Add basic debugfs infrastructure for Broadcom next generation controller. Signed-off-by: Siva Reddy Kallam Reviewed-by: Usman Ansari --- drivers/infiniband/hw/bng_re/Makefile | 3 +- drivers/infiniband/hw/bng_re/bng_debugfs.c | 39 ++++++++++++++++++++++ drivers/infiniband/hw/bng_re/bng_debugfs.h | 12 +++++++ drivers/infiniband/hw/bng_re/bng_dev.c | 12 +++++++ drivers/infiniband/hw/bng_re/bng_re.h | 1 + 5 files changed, 66 insertions(+), 1 deletion(-) create mode 100644 drivers/infiniband/hw/bng_re/bng_debugfs.c create mode 100644 drivers/infiniband/hw/bng_re/bng_debugfs.h diff --git a/drivers/infiniband/hw/bng_re/Makefile b/drivers/infiniband/hw/bng_re/Makefile index 556b763b43f9..c6aaaf853c77 100644 --- a/drivers/infiniband/hw/bng_re/Makefile +++ b/drivers/infiniband/hw/bng_re/Makefile @@ -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 diff --git a/drivers/infiniband/hw/bng_re/bng_debugfs.c b/drivers/infiniband/hw/bng_re/bng_debugfs.c new file mode 100644 index 000000000000..9ec5a8785250 --- /dev/null +++ b/drivers/infiniband/hw/bng_re/bng_debugfs.c @@ -0,0 +1,39 @@ +// SPDX-License-Identifier: GPL-2.0 +// Copyright (c) 2025 Broadcom. +#include +#include + +#include + +#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); +} diff --git a/drivers/infiniband/hw/bng_re/bng_debugfs.h b/drivers/infiniband/hw/bng_re/bng_debugfs.h new file mode 100644 index 000000000000..baef71df4242 --- /dev/null +++ b/drivers/infiniband/hw/bng_re/bng_debugfs.h @@ -0,0 +1,12 @@ +/* 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 diff --git a/drivers/infiniband/hw/bng_re/bng_dev.c b/drivers/infiniband/hw/bng_re/bng_dev.c index cdebe408f50f..9dbd8837457d 100644 --- a/drivers/infiniband/hw/bng_re/bng_dev.c +++ b/drivers/infiniband/hw/bng_re/bng_dev.c @@ -14,6 +14,7 @@ #include "bnge_auxr.h" #include "bng_re.h" #include "bnge_hwrm.h" +#include "bng_debugfs.h" static char version[] = BNG_RE_DESC "\n"; @@ -219,6 +220,7 @@ 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); @@ -318,6 +320,9 @@ 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); @@ -424,17 +429,24 @@ static int __init bng_re_mod_init(void) pr_info("%s: %s", BNG_ROCE_DRV_MODULE_NAME, version); + bng_re_register_debugfs(); + rc = auxiliary_driver_register(&bng_re_driver); if (rc) { pr_err("%s: Failed to register auxiliary driver\n", BNG_ROCE_DRV_MODULE_NAME); + 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); diff --git a/drivers/infiniband/hw/bng_re/bng_re.h b/drivers/infiniband/hw/bng_re/bng_re.h index 7598dd91043b..76837f17f12d 100644 --- a/drivers/infiniband/hw/bng_re/bng_re.h +++ b/drivers/infiniband/hw/bng_re/bng_re.h @@ -76,6 +76,7 @@ struct bng_re_dev { struct bng_re_nq_record *nqr; /* Device Resources */ struct bng_re_dev_attr *dev_attr; + struct dentry *dbg_root; }; #endif -- 2.34.1