From patchwork Fri Nov 20 06:27:59 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: George Cherian X-Patchwork-Id: 11919505 X-Patchwork-Delegate: kuba@kernel.org Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-15.9 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER, INCLUDES_PATCH,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS, UNWANTED_LANGUAGE_BODY,URIBL_BLOCKED,USER_AGENT_GIT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 110CFC6379F for ; Fri, 20 Nov 2020 06:28:37 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id BA30922256 for ; Fri, 20 Nov 2020 06:28:36 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=marvell.com header.i=@marvell.com header.b="hzwuJ90c" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726440AbgKTG2R (ORCPT ); Fri, 20 Nov 2020 01:28:17 -0500 Received: from mx0a-0016f401.pphosted.com ([67.231.148.174]:16046 "EHLO mx0b-0016f401.pphosted.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1725833AbgKTG2Q (ORCPT ); Fri, 20 Nov 2020 01:28:16 -0500 Received: from pps.filterd (m0045849.ppops.net [127.0.0.1]) by mx0a-0016f401.pphosted.com (8.16.0.42/8.16.0.42) with SMTP id 0AK6P7Os008114; Thu, 19 Nov 2020 22:28:11 -0800 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=marvell.com; h=from : to : cc : subject : date : message-id : in-reply-to : references : mime-version : content-transfer-encoding : content-type; s=pfpt0220; bh=97IWSkxJ/1rBoYtDRHiCvBbXvHh9lx7xpTtWFqJpWe8=; b=hzwuJ90ckEC7Gr1Mxm07xxWPOpEDbj6a6ujj/qot0Dscb6psqPPLPxX4VH6mjYspLN4R DDN+tQrhiLhDdLNCzExvXf6IX58SAlimCzkZTlBiYP9aawdilo/YCFxKFBUlJcHZ6UKq dveD5+F4f7jHzJUXKiQTgN1TvGqwFJUk6XOMo7Rd09o8QDKyJLEGZF5XR1CdWPPK4mo3 QRfS2LJGSCRFkLJdvjGFcGk8F8weUcf4X8DQtsksC3T7dmUbkwqNCgEWS91zwFsiOXWu J7Kb3SkoxMJMnmSJX6YdXOpboy6qdnoFUOOI7cSUJl4el2EP/yqvSFNEMSUeuQxtotkl xg== Received: from sc-exch01.marvell.com ([199.233.58.181]) by mx0a-0016f401.pphosted.com with ESMTP id 34vd2sne6s-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-SHA384 bits=256 verify=NOT); Thu, 19 Nov 2020 22:28:10 -0800 Received: from DC5-EXCH01.marvell.com (10.69.176.38) by SC-EXCH01.marvell.com (10.93.176.81) with Microsoft SMTP Server (TLS) id 15.0.1497.2; Thu, 19 Nov 2020 22:28:10 -0800 Received: from maili.marvell.com (10.69.176.80) by DC5-EXCH01.marvell.com (10.69.176.38) with Microsoft SMTP Server id 15.0.1497.2 via Frontend Transport; Thu, 19 Nov 2020 22:28:10 -0800 Received: from hyd1584.caveonetworks.com (unknown [10.29.37.82]) by maili.marvell.com (Postfix) with ESMTP id 9FCD23F7040; Thu, 19 Nov 2020 22:28:06 -0800 (PST) From: George Cherian To: , CC: , , , , , , , , Subject: [PATCHv3 net-next 1/3] octeontx2-af: Add devlink suppoort to af driver Date: Fri, 20 Nov 2020 11:57:59 +0530 Message-ID: <20201120062801.2821502-2-george.cherian@marvell.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20201120062801.2821502-1-george.cherian@marvell.com> References: <20201120062801.2821502-1-george.cherian@marvell.com> MIME-Version: 1.0 X-Proofpoint-Virus-Version: vendor=fsecure engine=2.50.10434:6.0.312,18.0.737 definitions=2020-11-20_03:2020-11-19,2020-11-20 signatures=0 Precedence: bulk List-ID: X-Mailing-List: netdev@vger.kernel.org X-Patchwork-Delegate: kuba@kernel.org Add devlink support to AF driver. Basic devlink support is added. Currently info_get is the only supported devlink ops. devlink ouptput looks like this # devlink dev pci/0002:01:00.0 # devlink dev info pci/0002:01:00.0: driver octeontx2-af versions: fixed: mbox version: 9 Signed-off-by: Sunil Kovvuri Goutham Signed-off-by: Jerin Jacob Signed-off-by: George Cherian --- .../net/ethernet/marvell/octeontx2/Kconfig | 1 + .../ethernet/marvell/octeontx2/af/Makefile | 3 +- .../net/ethernet/marvell/octeontx2/af/rvu.c | 9 ++- .../net/ethernet/marvell/octeontx2/af/rvu.h | 4 ++ .../marvell/octeontx2/af/rvu_devlink.c | 72 +++++++++++++++++++ .../marvell/octeontx2/af/rvu_devlink.h | 20 ++++++ 6 files changed, 107 insertions(+), 2 deletions(-) create mode 100644 drivers/net/ethernet/marvell/octeontx2/af/rvu_devlink.c create mode 100644 drivers/net/ethernet/marvell/octeontx2/af/rvu_devlink.h diff --git a/drivers/net/ethernet/marvell/octeontx2/Kconfig b/drivers/net/ethernet/marvell/octeontx2/Kconfig index 543a1d047567..16caa02095fe 100644 --- a/drivers/net/ethernet/marvell/octeontx2/Kconfig +++ b/drivers/net/ethernet/marvell/octeontx2/Kconfig @@ -9,6 +9,7 @@ config OCTEONTX2_MBOX config OCTEONTX2_AF tristate "Marvell OcteonTX2 RVU Admin Function driver" select OCTEONTX2_MBOX + select NET_DEVLINK depends on (64BIT && COMPILE_TEST) || ARM64 depends on PCI help diff --git a/drivers/net/ethernet/marvell/octeontx2/af/Makefile b/drivers/net/ethernet/marvell/octeontx2/af/Makefile index 2f7a861d0c7b..20135f1d3387 100644 --- a/drivers/net/ethernet/marvell/octeontx2/af/Makefile +++ b/drivers/net/ethernet/marvell/octeontx2/af/Makefile @@ -9,4 +9,5 @@ obj-$(CONFIG_OCTEONTX2_AF) += octeontx2_af.o octeontx2_mbox-y := mbox.o rvu_trace.o octeontx2_af-y := cgx.o rvu.o rvu_cgx.o rvu_npa.o rvu_nix.o \ - rvu_reg.o rvu_npc.o rvu_debugfs.o ptp.o + rvu_reg.o rvu_npc.o rvu_debugfs.o ptp.o \ + rvu_devlink.o diff --git a/drivers/net/ethernet/marvell/octeontx2/af/rvu.c b/drivers/net/ethernet/marvell/octeontx2/af/rvu.c index a28a518c0eae..67d6e05d1037 100644 --- a/drivers/net/ethernet/marvell/octeontx2/af/rvu.c +++ b/drivers/net/ethernet/marvell/octeontx2/af/rvu.c @@ -2816,17 +2816,23 @@ static int rvu_probe(struct pci_dev *pdev, const struct pci_device_id *id) if (err) goto err_flr; + err = rvu_register_dl(rvu); + if (err) + goto err_irq; + rvu_setup_rvum_blk_revid(rvu); /* Enable AF's VFs (if any) */ err = rvu_enable_sriov(rvu); if (err) - goto err_irq; + goto err_dl; /* Initialize debugfs */ rvu_dbg_init(rvu); return 0; +err_dl: + rvu_unregister_dl(rvu); err_irq: rvu_unregister_interrupts(rvu); err_flr: @@ -2858,6 +2864,7 @@ static void rvu_remove(struct pci_dev *pdev) rvu_dbg_exit(rvu); rvu_unregister_interrupts(rvu); + rvu_unregister_dl(rvu); rvu_flr_wq_destroy(rvu); rvu_cgx_exit(rvu); rvu_fwdata_exit(rvu); diff --git a/drivers/net/ethernet/marvell/octeontx2/af/rvu.h b/drivers/net/ethernet/marvell/octeontx2/af/rvu.h index 5ac9bb12415f..282566235918 100644 --- a/drivers/net/ethernet/marvell/octeontx2/af/rvu.h +++ b/drivers/net/ethernet/marvell/octeontx2/af/rvu.h @@ -12,7 +12,10 @@ #define RVU_H #include +#include + #include "rvu_struct.h" +#include "rvu_devlink.h" #include "common.h" #include "mbox.h" @@ -376,6 +379,7 @@ struct rvu { #ifdef CONFIG_DEBUG_FS struct rvu_debugfs rvu_dbg; #endif + struct rvu_devlink *rvu_dl; }; static inline void rvu_write64(struct rvu *rvu, u64 block, u64 offset, u64 val) diff --git a/drivers/net/ethernet/marvell/octeontx2/af/rvu_devlink.c b/drivers/net/ethernet/marvell/octeontx2/af/rvu_devlink.c new file mode 100644 index 000000000000..04ef945e7e75 --- /dev/null +++ b/drivers/net/ethernet/marvell/octeontx2/af/rvu_devlink.c @@ -0,0 +1,72 @@ +// SPDX-License-Identifier: GPL-2.0 +/* Marvell OcteonTx2 RVU Devlink + * + * Copyright (C) 2020 Marvell. + * + */ + +#include "rvu.h" + +#define DRV_NAME "octeontx2-af" + +static int rvu_devlink_info_get(struct devlink *devlink, struct devlink_info_req *req, + struct netlink_ext_ack *extack) +{ + char buf[10]; + int err; + + err = devlink_info_driver_name_put(req, DRV_NAME); + if (err) + return err; + + sprintf(buf, "%X", OTX2_MBOX_VERSION); + return devlink_info_version_fixed_put(req, "mbox version:", buf); +} + +static const struct devlink_ops rvu_devlink_ops = { + .info_get = rvu_devlink_info_get, +}; + +int rvu_register_dl(struct rvu *rvu) +{ + struct rvu_devlink *rvu_dl; + struct devlink *dl; + int err; + + rvu_dl = kzalloc(sizeof(*rvu_dl), GFP_KERNEL); + if (!rvu_dl) + return -ENOMEM; + + dl = devlink_alloc(&rvu_devlink_ops, sizeof(struct rvu_devlink)); + if (!dl) { + dev_warn(rvu->dev, "devlink_alloc failed\n"); + kfree(rvu_dl); + return -ENOMEM; + } + + err = devlink_register(dl, rvu->dev); + if (err) { + dev_err(rvu->dev, "devlink register failed with error %d\n", err); + devlink_free(dl); + kfree(rvu_dl); + return err; + } + + rvu_dl->dl = dl; + rvu_dl->rvu = rvu; + rvu->rvu_dl = rvu_dl; + return 0; +} + +void rvu_unregister_dl(struct rvu *rvu) +{ + struct rvu_devlink *rvu_dl = rvu->rvu_dl; + struct devlink *dl = rvu_dl->dl; + + if (!dl) + return; + + devlink_unregister(dl); + devlink_free(dl); + kfree(rvu_dl); +} diff --git a/drivers/net/ethernet/marvell/octeontx2/af/rvu_devlink.h b/drivers/net/ethernet/marvell/octeontx2/af/rvu_devlink.h new file mode 100644 index 000000000000..1ed6dde79a4e --- /dev/null +++ b/drivers/net/ethernet/marvell/octeontx2/af/rvu_devlink.h @@ -0,0 +1,20 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +/* Marvell OcteonTx2 RVU Devlink + * + * Copyright (C) 2020 Marvell. + * + */ + +#ifndef RVU_DEVLINK_H +#define RVU_DEVLINK_H + +struct rvu_devlink { + struct devlink *dl; + struct rvu *rvu; +}; + +/* Devlink APIs */ +int rvu_register_dl(struct rvu *rvu); +void rvu_unregister_dl(struct rvu *rvu); + +#endif /* RVU_DEVLINK_H */