From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from pdx-out-004.esa.us-west-2.outbound.mail-perimeter.amazon.com (pdx-out-004.esa.us-west-2.outbound.mail-perimeter.amazon.com [44.246.77.92]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 852333E5EC5 for ; Tue, 7 Jul 2026 20:34:35 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=44.246.77.92 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1783456476; cv=none; b=INgQDI06yP1u7mtkKR4fWG6bTdnsoAPKfrCaBeFPyJ65eYb5mKiaKBCAf21nQ3JpHuursW3S6juXSgVoYG2noSnCio86s5kPkSonAw7r8Vwirn89nZJYrf1d8AQCmaG8goqj3RQiAUFghHiXzyCrC9RMltkvWim5QvtGwUC6fjE= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1783456476; c=relaxed/simple; bh=6Yov95Z9EBhaqPydqGmb2BJTveb4bAj6Wc6pf86nvig=; h=From:To:CC:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version:Content-Type; b=FIrVUaZ5p/YQXXc/bR5oRyanqGeWDL6reULyCF7OgAf5gXg+LCq8bL5NjOU7NubMR0lorMDNUkY4b1qGBhGVVCpfn7NmzpSc5j2KqtV2JKYY0tV8rObga5ps4LEAF68uwL30uWu+x/QrcPQ70ha8JlJtPt/s02/uokyhdRgM9r4= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=quarantine dis=none) header.from=amazon.com; spf=pass smtp.mailfrom=amazon.com; dkim=pass (2048-bit key) header.d=amazon.com header.i=@amazon.com header.b=Qay72ETO; arc=none smtp.client-ip=44.246.77.92 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=quarantine dis=none) header.from=amazon.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=amazon.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=amazon.com header.i=@amazon.com header.b="Qay72ETO" DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=amazon.com; i=@amazon.com; q=dns/txt; s=amazoncorp2; t=1783456475; x=1814992475; h=from:to:cc:subject:date:message-id:in-reply-to: references:mime-version:content-transfer-encoding; bh=QhC3aKPVSguX86/33IJ+VKDQcnTAcEQSwQtlTuT2m64=; b=Qay72ETO4JXUhZjr6QBMcMMqDPJd6LFqU2d2vYq80BuzoiGeLrv3n9Qo Mk46ytzTz4SdHnsoaAMJ/ZWFMixjIfWPjCCjO5gv2T6p3IMlDS33l6NY5 XaQrA2knOnYSRQzr5ttRKFACUPEVzbl285wy5qluKKiGLIAJy/R25gN0M y/WUGFKHKfSU4S+ScCUhWdtaNDpPjxZdzhY/rjhKH3j77X0P/bVdY0A5u ZBNAbIAHr4ZQcegfHUinIPij3FFi87o0z+iOEv3S/0TSC3jQkLYTzCXmi ANVK1LDYBB+tsRBCv1iINelgPLDQ7sh/IEsy3JM7pyx8WBrxyGaM6C8rV Q==; X-CSE-ConnectionGUID: utHmGLnbTAqr2CoLfjSSIQ== X-CSE-MsgGUID: lLkKff2jToi5NhNOITf37g== X-IronPort-AV: E=Sophos;i="6.25,153,1779148800"; d="scan'208";a="23239028" Received: from ip-10-5-12-219.us-west-2.compute.internal (HELO smtpout.naws.us-west-2.prod.farcaster.email.amazon.dev) ([10.5.12.219]) by internal-pdx-out-004.esa.us-west-2.outbound.mail-perimeter.amazon.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 07 Jul 2026 20:34:35 +0000 Received: from EX19MTAUWB002.ant.amazon.com [205.251.233.111:8301] by smtpin.naws.us-west-2.prod.farcaster.email.amazon.dev [10.0.17.129:2525] with esmtp (Farcaster) id 7a5c40f4-9ed4-48d7-9e0b-f8960503b093; Tue, 7 Jul 2026 20:34:34 +0000 (UTC) X-Farcaster-Flow-ID: 7a5c40f4-9ed4-48d7-9e0b-f8960503b093 Received: from EX19D001UWA001.ant.amazon.com (10.13.138.214) by EX19MTAUWB002.ant.amazon.com (10.250.64.231) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA) id 15.2.2562.43; Tue, 7 Jul 2026 20:34:34 +0000 Received: from dev-dsk-mrgolin-1c-b2091117.eu-west-1.amazon.com (10.253.103.172) by EX19D001UWA001.ant.amazon.com (10.13.138.214) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA) id 15.2.2562.43; Tue, 7 Jul 2026 20:34:33 +0000 From: Michael Margolin To: , , CC: , , , "Yonatan Nachum" Subject: [PATCH for-next v8 3/5] RDMA/core: Add Completion Counters to resource tracking Date: Tue, 7 Jul 2026 20:34:25 +0000 Message-ID: <20260707203427.6923-4-mrgolin@amazon.com> X-Mailer: git-send-email 2.47.3 In-Reply-To: <20260707203427.6923-1-mrgolin@amazon.com> References: <20260707203427.6923-1-mrgolin@amazon.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 Content-Type: text/plain X-ClientProxiedBy: EX19D033UWA004.ant.amazon.com (10.13.139.85) To EX19D001UWA001.ant.amazon.com (10.13.138.214) Track completion counter objects in the resource tracking database so they are visible through the rdma netlink interface. The rdma tool displays the comp_cntr count in the resource summary. Add RDMA_RESTRACK_COMP_CNTR type, embed rdma_restrack_entry in ib_comp_cntr, and add the res_to_dev mapping. Register the resource on create and remove it on destroy. Reviewed-by: Yonatan Nachum Signed-off-by: Michael Margolin --- drivers/infiniband/core/nldev.c | 4 ++++ drivers/infiniband/core/restrack.c | 2 ++ drivers/infiniband/core/uverbs_std_types_comp_cntr.c | 6 ++++++ include/rdma/ib_verbs.h | 1 + include/rdma/restrack.h | 4 ++++ 5 files changed, 17 insertions(+) diff --git a/drivers/infiniband/core/nldev.c b/drivers/infiniband/core/nldev.c index f599c24b34e8..1a9c514ac6d0 100644 --- a/drivers/infiniband/core/nldev.c +++ b/drivers/infiniband/core/nldev.c @@ -451,6 +451,7 @@ static int fill_res_info(struct sk_buff *msg, struct ib_device *device, [RDMA_RESTRACK_MR] = "mr", [RDMA_RESTRACK_CTX] = "ctx", [RDMA_RESTRACK_SRQ] = "srq", + [RDMA_RESTRACK_COMP_CNTR] = "comp_cntr", }; struct nlattr *table_attr; @@ -483,6 +484,9 @@ static int fill_res_info(struct sk_buff *msg, struct ib_device *device, case RDMA_RESTRACK_SRQ: max = device->attrs.max_srq; break; + case RDMA_RESTRACK_COMP_CNTR: + max = device->attrs.max_comp_cntr; + break; default: max = 0; } diff --git a/drivers/infiniband/core/restrack.c b/drivers/infiniband/core/restrack.c index cfee2071586c..41359fce4dc0 100644 --- a/drivers/infiniband/core/restrack.c +++ b/drivers/infiniband/core/restrack.c @@ -104,6 +104,8 @@ static struct ib_device *res_to_dev(struct rdma_restrack_entry *res) return container_of(res, struct ib_srq, res)->device; case RDMA_RESTRACK_DMAH: return container_of(res, struct ib_dmah, res)->device; + case RDMA_RESTRACK_COMP_CNTR: + return container_of(res, struct ib_comp_cntr, res)->device; default: WARN_ONCE(true, "Wrong resource tracking type %u\n", res->type); return NULL; diff --git a/drivers/infiniband/core/uverbs_std_types_comp_cntr.c b/drivers/infiniband/core/uverbs_std_types_comp_cntr.c index dfca9756bcd1..c4df4c179e4b 100644 --- a/drivers/infiniband/core/uverbs_std_types_comp_cntr.c +++ b/drivers/infiniband/core/uverbs_std_types_comp_cntr.c @@ -6,6 +6,7 @@ #include #include "rdma_core.h" #include "uverbs.h" +#include "restrack.h" static int uverbs_free_comp_cntr(struct ib_uobject *uobject, enum rdma_remove_reason why, struct uverbs_attr_bundle *attrs) @@ -20,6 +21,7 @@ static int uverbs_free_comp_cntr(struct ib_uobject *uobject, enum rdma_remove_re if (ret) return ret; + rdma_restrack_del(&cc->res); kfree(cc); return 0; } @@ -48,7 +50,11 @@ static int UVERBS_HANDLER(UVERBS_METHOD_COMP_CNTR_CREATE)(struct uverbs_attr_bun if (ret) goto err_free; + rdma_restrack_new(&cc->res, RDMA_RESTRACK_COMP_CNTR); + rdma_restrack_set_name(&cc->res, NULL); + uobj->object = cc; + rdma_restrack_add(&cc->res); uverbs_finalize_uobj_create(attrs, UVERBS_ATTR_CREATE_COMP_CNTR_HANDLE); ret = uverbs_copy_to(attrs, UVERBS_ATTR_CREATE_COMP_CNTR_RESP_COUNT_MAX_VALUE, diff --git a/include/rdma/ib_verbs.h b/include/rdma/ib_verbs.h index 723bf368c41f..6fbf465b18cc 100644 --- a/include/rdma/ib_verbs.h +++ b/include/rdma/ib_verbs.h @@ -1753,6 +1753,7 @@ struct ib_comp_cntr { u64 comp_count_max_value; u64 err_count_max_value; atomic_t usecnt; + struct rdma_restrack_entry res; }; enum ib_comp_cntr_entry { diff --git a/include/rdma/restrack.h b/include/rdma/restrack.h index 451f99e3717d..4ab72bc6d8c7 100644 --- a/include/rdma/restrack.h +++ b/include/rdma/restrack.h @@ -60,6 +60,10 @@ enum rdma_restrack_type { * @RDMA_RESTRACK_DMAH: DMA handle */ RDMA_RESTRACK_DMAH, + /** + * @RDMA_RESTRACK_COMP_CNTR: Completion Counter + */ + RDMA_RESTRACK_COMP_CNTR, /** * @RDMA_RESTRACK_MAX: Last entry, used for array dclarations */ -- 2.47.3