From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from SN4PR2101CU001.outbound.protection.outlook.com (mail-southcentralusazon11012026.outbound.protection.outlook.com [40.93.195.26]) (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 33BF83BD246 for ; Tue, 16 Jun 2026 02:36:25 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=fail smtp.client-ip=40.93.195.26 ARC-Seal:i=2; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1781577386; cv=fail; b=dF+di8BbSGlRBuFh03lubHUNplQcIFoFvgIyFmghZjHULGKppLwlpcHJt6rysr3++3jIJTJHoG5qkO/mJW+06J10PhkJ3DJIOcueGlCtlftoi4cfQ6qQeeEwp+n24plzaDvQJScyBpEpdfdYPt40942k/gAlOQ7WrvRHinPeKNQ= ARC-Message-Signature:i=2; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1781577386; c=relaxed/simple; bh=rfAOxP/63Lmj4dqleoEYOytf2gdnr1BtLWG8DkM1Hzg=; h=From:To:CC:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version:Content-Type; b=lqv5szM0e+gvDRET2qIoVObOTXl7qEWimFcvBGlCw4ivsAO7hSM4HhoLneH8CQaFGVyg+eFWCzhQJ7QH26JZJmEVxxEndy1SIO+ZvIu4iLjQ/n+cEImF4G7ZovhSx+fLB2TH//rkomN3twK0aOPu55WXryrWGhhuFeXN524wkV0= ARC-Authentication-Results:i=2; smtp.subspace.kernel.org; dmarc=pass (p=quarantine dis=none) header.from=amd.com; spf=fail smtp.mailfrom=amd.com; dkim=pass (1024-bit key) header.d=amd.com header.i=@amd.com header.b=oIb8oL4p; arc=fail smtp.client-ip=40.93.195.26 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=quarantine dis=none) header.from=amd.com Authentication-Results: smtp.subspace.kernel.org; spf=fail smtp.mailfrom=amd.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=amd.com header.i=@amd.com header.b="oIb8oL4p" ARC-Seal: i=1; a=rsa-sha256; s=arcselector10001; d=microsoft.com; cv=none; b=HP7TEkgFMOHZau54Zh4RMfbS71KF3btNrNING6xBWUUima5UMsZ9+Zto13ytefUG/avDZqnPRPqUYCWO7ISPk54SmQ/nxRXvO7vfg0AjAhqIO39HHDhmSHmxH9Qs0fCFPYVPxkzVT16XNTgGFmgaStNUyvUhV8KilsZPsKjlEN5+OTMe8JwwjFSBP+4r3ctuGqFtDS9H0YVfnMt44eu3ib9ets+BQq8IMadx7s/kW5QCUubpovnjhAGmB/caG+nxOp4GA0zu2KUmzPEuLtIoEIeXfR6S6xmnLwD97TwgF0K8lXfpDO1VDh5xc18/OrpvCE79yJZ0Yi7Q7yAZZsNeUA== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=microsoft.com; s=arcselector10001; h=From:Date:Subject:Message-ID:Content-Type:MIME-Version:X-MS-Exchange-AntiSpam-MessageData-ChunkCount:X-MS-Exchange-AntiSpam-MessageData-0:X-MS-Exchange-AntiSpam-MessageData-1; bh=N5t4VRzlO8lDnqlMg/d6wVkamHw0p/eLGhhE6joHols=; b=HZ/co2YLvtQ3WA1orEtaneS3k8Yg6cmkByeXYS756nfu8zJhCswCiEdefq3IxwS2+hB4D5hYNZ40aleLaio3HrKr9se91nhM6g69IknSYiMMN9LeEZaK4/2WeYRnhrkZTcIH9fQ88QpfNp2qdeMEl93QyQYwPY3aexAWohMBqoUg9lx1LRNZ/5irp9vWa086IyqeFv+2oPByQobnkDThPk6RRwDzluSfQobK+YTSnwIRjifoJryMmS+fHbC95BFxC5jMelVTAmohd6d+YBeTkhSaGLvoup70ukMarWl2lK0eNhmYchzYpGqxm5xDhgeTxCGAAttcsMLMIMuF3/dWIw== ARC-Authentication-Results: i=1; mx.microsoft.com 1; spf=pass (sender ip is 165.204.84.17) smtp.rcpttodomain=vger.kernel.org smtp.mailfrom=amd.com; dmarc=pass (p=quarantine sp=quarantine pct=100) action=none header.from=amd.com; dkim=none (message not signed); arc=none (0) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=amd.com; s=selector1; h=From:Date:Subject:Message-ID:Content-Type:MIME-Version:X-MS-Exchange-SenderADCheck; bh=N5t4VRzlO8lDnqlMg/d6wVkamHw0p/eLGhhE6joHols=; b=oIb8oL4poSEzBUYytfHnv+2+eYDS3ta/tTq1spppTxUshq4/322HCzlkZLkKW7KKXvT3jl2EG1tDrH6Zx2PIrwRzjC2lcYXuSoyymTNdqhwKqdva+BuTE5Iotf4CEL534SX2DbrCj+U/eDgH8QtzukPOchgqSf5/nEi4C+0mI/U= Received: from SJ0PR03CA0151.namprd03.prod.outlook.com (2603:10b6:a03:338::6) by DS4PR12MB9660.namprd12.prod.outlook.com (2603:10b6:8:281::6) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.21.113.18; Tue, 16 Jun 2026 02:36:21 +0000 Received: from SJ1PEPF00001CE4.namprd03.prod.outlook.com (2603:10b6:a03:338:cafe::3b) by SJ0PR03CA0151.outlook.office365.com (2603:10b6:a03:338::6) with Microsoft SMTP Server (version=TLS1_3, cipher=TLS_AES_256_GCM_SHA384) id 15.21.113.18 via Frontend Transport; Tue, 16 Jun 2026 02:36:21 +0000 X-MS-Exchange-Authentication-Results: spf=pass (sender IP is 165.204.84.17) smtp.mailfrom=amd.com; dkim=none (message not signed) header.d=none;dmarc=pass action=none header.from=amd.com; Received-SPF: Pass (protection.outlook.com: domain of amd.com designates 165.204.84.17 as permitted sender) receiver=protection.outlook.com; client-ip=165.204.84.17; helo=satlexmb07.amd.com; pr=C Received: from satlexmb07.amd.com (165.204.84.17) by SJ1PEPF00001CE4.mail.protection.outlook.com (10.167.242.20) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.21.139.8 via Frontend Transport; Tue, 16 Jun 2026 02:36:21 +0000 Received: from amd.rund-run.pensando.io (10.180.168.240) by satlexmb07.amd.com (10.181.42.216) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.2.2562.41; Mon, 15 Jun 2026 21:36:20 -0500 From: "Nikhil P. Rao" To: CC: , , , , , , , , Vamsi Atluri Subject: [PATCH net-next v5 6/6] pds_core: add debugfs support for host backed memory Date: Tue, 16 Jun 2026 02:35:54 +0000 Message-ID: <20260616023554.258764-7-nikhil.rao@amd.com> X-Mailer: git-send-email 2.43.0 In-Reply-To: <20260616023554.258764-1-nikhil.rao@amd.com> References: <20260616023554.258764-1-nikhil.rao@amd.com> Precedence: bulk X-Mailing-List: netdev@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Content-Type: text/plain X-ClientProxiedBy: satlexmb08.amd.com (10.181.42.217) To satlexmb07.amd.com (10.181.42.216) X-EOPAttributedMessage: 0 X-MS-PublicTrafficType: Email X-MS-TrafficTypeDiagnostic: SJ1PEPF00001CE4:EE_|DS4PR12MB9660:EE_ X-MS-Office365-Filtering-Correlation-Id: aa6c793b-9693-46d2-ee49-08decb500d54 X-MS-Exchange-SenderADCheck: 1 X-MS-Exchange-AntiSpam-Relay: 0 X-Microsoft-Antispam: BCL:0;ARA:13230040|36860700016|376014|82310400026|23010399003|1800799024|56012099006|11063799006|22082099003|18002099003|6133799003; X-Microsoft-Antispam-Message-Info: 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 X-Forefront-Antispam-Report: CIP:165.204.84.17;CTRY:US;LANG:en;SCL:1;SRV:;IPV:NLI;SFV:NSPM;H:satlexmb07.amd.com;PTR:InfoDomainNonexistent;CAT:NONE;SFS:(13230040)(36860700016)(376014)(82310400026)(23010399003)(1800799024)(56012099006)(11063799006)(22082099003)(18002099003)(6133799003);DIR:OUT;SFP:1101; X-MS-Exchange-AntiSpam-MessageData-ChunkCount: 1 X-MS-Exchange-AntiSpam-MessageData-0: MtNAJyugBpG1LLIa7Dh9DrKwIV26zPW9fUvqisPeqDnopsXHvIWHiDDLcZKMF2bEM6Lt5pZgb0IdXtGmTtMQOwa9splZBMtIhqeloAxVlyRnXbpy53ivjh+NxWeRtdPaU2fgGZmzjnZo+ZVDxQJehX8zYcKu0KouZnkN/fs+s1gBzVqtCToXQ+FVVCc327HaxrC7DjERaRiLxAvn2m+T+XV1NaTBQB8fSclObvWAaG1zQZcn+QadzfbXz7DZuOXdbNfcbgnXJ9PE4n9iHM9VrD4pBF+ObW4qVk/d9hnY72ZVndvMAf70U1zKz0Z5XWNGB5EmnC5MljNbqo9wDpnQIxrFtOpkMTH/zz2tQH5ActelwE2PfSJeKgxDPmXVg52UFiJjWM5jUzfECrlaW9dguTu57HLBNQ1qT6FqRfIvoR/m4IGalJvqpAi+Yt2WQ5/F X-OriginatorOrg: amd.com X-MS-Exchange-CrossTenant-OriginalArrivalTime: 16 Jun 2026 02:36:21.3327 (UTC) X-MS-Exchange-CrossTenant-Network-Message-Id: aa6c793b-9693-46d2-ee49-08decb500d54 X-MS-Exchange-CrossTenant-Id: 3dd8961f-e488-4e60-8e11-a82d994e183d X-MS-Exchange-CrossTenant-OriginalAttributedTenantConnectingIp: TenantId=3dd8961f-e488-4e60-8e11-a82d994e183d;Ip=[165.204.84.17];Helo=[satlexmb07.amd.com] X-MS-Exchange-CrossTenant-AuthSource: SJ1PEPF00001CE4.namprd03.prod.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Anonymous X-MS-Exchange-CrossTenant-FromEntityHeader: HybridOnPrem X-MS-Exchange-Transport-CrossTenantHeadersStamped: DS4PR12MB9660 From: Vamsi Atluri Add debugfs file to display host memory allocations including tag, size, order, and physical address for each memory request. Signed-off-by: Vamsi Atluri --- drivers/net/ethernet/amd/pds_core/core.c | 2 + drivers/net/ethernet/amd/pds_core/core.h | 1 + drivers/net/ethernet/amd/pds_core/debugfs.c | 45 +++++++++++++++++++++ 3 files changed, 48 insertions(+) diff --git a/drivers/net/ethernet/amd/pds_core/core.c b/drivers/net/ethernet/amd/pds_core/core.c index 511482713d15..926f34c10e3a 100644 --- a/drivers/net/ethernet/amd/pds_core/core.c +++ b/drivers/net/ethernet/amd/pds_core/core.c @@ -487,6 +487,7 @@ void pdsc_teardown(struct pdsc *pdsc, bool removing) pdsc->viftype_status = NULL; } + pdsc_debugfs_del_host_mem(pdsc); pdsc_host_mem_free(pdsc); pdsc_dev_uninit(pdsc); @@ -498,6 +499,7 @@ int pdsc_start(struct pdsc *pdsc) pds_core_intr_mask(&pdsc->intr_ctrl[pdsc->adminqcq.intx], PDS_CORE_INTR_MASK_CLEAR); pdsc_host_mem_add(pdsc); + pdsc_debugfs_add_host_mem(pdsc); return 0; } diff --git a/drivers/net/ethernet/amd/pds_core/core.h b/drivers/net/ethernet/amd/pds_core/core.h index 1f80219edc6a..50c11af6c6c6 100644 --- a/drivers/net/ethernet/amd/pds_core/core.h +++ b/drivers/net/ethernet/amd/pds_core/core.h @@ -304,6 +304,7 @@ void pdsc_debugfs_add_irqs(struct pdsc *pdsc); void pdsc_debugfs_add_qcq(struct pdsc *pdsc, struct pdsc_qcq *qcq); void pdsc_debugfs_del_qcq(struct pdsc_qcq *qcq); void pdsc_debugfs_add_host_mem(struct pdsc *pdsc); +void pdsc_debugfs_del_host_mem(struct pdsc *pdsc); int pdsc_err_to_errno(enum pds_core_status_code code); bool pdsc_is_fw_running(struct pdsc *pdsc); diff --git a/drivers/net/ethernet/amd/pds_core/debugfs.c b/drivers/net/ethernet/amd/pds_core/debugfs.c index 810a0cd9bcac..ef0a1b7d159b 100644 --- a/drivers/net/ethernet/amd/pds_core/debugfs.c +++ b/drivers/net/ethernet/amd/pds_core/debugfs.c @@ -178,3 +178,48 @@ void pdsc_debugfs_del_qcq(struct pdsc_qcq *qcq) debugfs_remove_recursive(qcq->dentry); qcq->dentry = NULL; } + +static int host_mem_show(struct seq_file *seq, void *v) +{ + struct pdsc *pdsc = seq->private; + struct pdsc_host_mem *hm; + int i; + + if (!pdsc->host_mem_reqs || pdsc->num_host_mem_reqs == 0) { + seq_puts(seq, "No host memory allocated\n"); + return 0; + } + + seq_printf(seq, "Host memory requests: %u\n\n", + pdsc->num_host_mem_reqs); + seq_puts(seq, "Tag Size Order PA\n"); + seq_puts(seq, "--- ---- ----- --\n"); + + for (i = 0; i < pdsc->num_host_mem_reqs; i++) { + hm = &pdsc->host_mem_reqs[i]; + + if (!hm->pg) + continue; + + seq_printf(seq, "%-6u %-12u %-6u %pad\n", + hm->tag, hm->size, hm->order, &hm->pa); + } + + return 0; +} +DEFINE_SHOW_ATTRIBUTE(host_mem); + +void pdsc_debugfs_add_host_mem(struct pdsc *pdsc) +{ + if (!(pdsc->dev_ident.capabilities & + cpu_to_le64(PDS_CORE_DEV_CAP_HOST_MEM))) + return; + + debugfs_create_file("host_mem", 0400, pdsc->dentry, + pdsc, &host_mem_fops); +} + +void pdsc_debugfs_del_host_mem(struct pdsc *pdsc) +{ + debugfs_lookup_and_remove("host_mem", pdsc->dentry); +} -- 2.43.0