From patchwork Thu Feb 8 10:18:39 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Shinas Rasheed X-Patchwork-Id: 13549559 X-Patchwork-Delegate: kuba@kernel.org Received: from mx0b-0016f401.pphosted.com (mx0a-0016f401.pphosted.com [67.231.148.174]) (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 0A42C73172; Thu, 8 Feb 2024 10:19:33 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=67.231.148.174 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1707387576; cv=none; b=DVMIT6wICbMyDRA+KstKLu9fYy5ajvT27gwqHh8YOZS+Feb649azVPiVclaUpKLctVOLCzT/Wpu5elO42tm56UXVj+dXMhXsfd6T7NaXQ4zZ6NEuUEsHr58loFQYds8aSG0jU1/PYGRqfIDu/A/vOascVkSJ5X0fTahJgRvzPP8= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1707387576; c=relaxed/simple; bh=y+AUuApQKJnzXj+2HhGtu1TaA0HBAVSQAunnkqMNGr0=; h=From:To:CC:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version:Content-Type; b=KpqNTzzinlAH9Ix7VCqgR7rvFxki6KGH9ZNlgFtxusa8DvV4ff4nFDeP70ldgPrW74pVOvHyxYGMbeDgnlyxjNnS9M/k+3vET3Y0MDL67BIoWlgez4CLQ0gdrWWJ8Stf1qLz/NYILEWm6z7RPFWSszegKiQ7njSEdFpC61vApVU= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=marvell.com; spf=pass smtp.mailfrom=marvell.com; dkim=pass (2048-bit key) header.d=marvell.com header.i=@marvell.com header.b=HgdPWiZN; arc=none smtp.client-ip=67.231.148.174 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=marvell.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=marvell.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=marvell.com header.i=@marvell.com header.b="HgdPWiZN" Received: from pps.filterd (m0045849.ppops.net [127.0.0.1]) by mx0a-0016f401.pphosted.com (8.17.1.24/8.17.1.24) with ESMTP id 4187djsX005897; Thu, 8 Feb 2024 02:19:25 -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=yrC4x6ff6P0KKvXKc2en3PUTKRRU5Pw976NxlGjRi8M=; b=Hgd PWiZNJ8/t8ALD5/l1YHz50M/CfuA+68lwBK1f1mZDoiW+x9JJiGV4K5bbIG/uvCQ aREJCiglDn5FtFZfop6Ohz0ezrGS/Xx0kjYgHaGARF73Gr1Ml6jeDI0NA3BY+hf1 T8VoZ8ZSSie5N/xGgnnCM7l1RTwnr3/R3XK8c8LjSbBNCveb0+qS3qIo9op+2aox 6OZYsA+X2ro/Jp7kh03BS1gj9pbU+CQKjUr8ZAiz23TiFDCHpIQxHx4v4FFPeYuL mclEPczV6DOUwmPtuy8Lrh3qvEF80Gn5XZ0b5gqHF5bUheIt2qdDjrL1fBVBcvku zhD1FwNoQURySJptWeg== Received: from dc5-exch02.marvell.com ([199.233.59.182]) by mx0a-0016f401.pphosted.com (PPS) with ESMTPS id 3w4trp8e0c-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-SHA384 bits=256 verify=NOT); Thu, 08 Feb 2024 02:19:25 -0800 (PST) Received: from DC5-EXCH02.marvell.com (10.69.176.39) by DC5-EXCH02.marvell.com (10.69.176.39) with Microsoft SMTP Server (TLS) id 15.0.1497.48; Thu, 8 Feb 2024 02:19:23 -0800 Received: from maili.marvell.com (10.69.176.80) by DC5-EXCH02.marvell.com (10.69.176.39) with Microsoft SMTP Server id 15.0.1497.48 via Frontend Transport; Thu, 8 Feb 2024 02:19:23 -0800 Received: from ubuntu-PowerEdge-T110-II.sclab.marvell.com (unknown [10.106.27.86]) by maili.marvell.com (Postfix) with ESMTP id 00D083F7054; Thu, 8 Feb 2024 02:19:22 -0800 (PST) From: Shinas Rasheed To: , CC: , , , , , , , , , , , , , Veerasenareddy Burru , "Satananda Burla" , "David S. Miller" , "Eric Dumazet" Subject: [PATCH net-next v7 7/8] octeon_ep_vf: add ethtool support Date: Thu, 8 Feb 2024 02:18:39 -0800 Message-ID: <20240208101841.3108103-8-srasheed@marvell.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20240208101841.3108103-1-srasheed@marvell.com> References: <20240208101841.3108103-1-srasheed@marvell.com> Precedence: bulk X-Mailing-List: netdev@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-Proofpoint-GUID: Zz34yO16lEDojEvQZvJm5V-8pTjusOqG X-Proofpoint-ORIG-GUID: Zz34yO16lEDojEvQZvJm5V-8pTjusOqG X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.272,Aquarius:18.0.1011,Hydra:6.0.619,FMLib:17.11.176.26 definitions=2024-02-08_01,2024-02-07_01,2023-05-22_02 X-Patchwork-Delegate: kuba@kernel.org Add support for the following ethtool commands: ethtool -i|--driver devname ethtool devname ethtool -S|--statistics devname Signed-off-by: Shinas Rasheed --- V7: - No changes V6: https://lore.kernel.org/all/20240207065207.3092004-8-srasheed@marvell.com/ - No changes V5: https://lore.kernel.org/all/20240129050254.3047778-8-srasheed@marvell.com/ - No changes V4: https://lore.kernel.org/all/20240108124213.2966536-8-srasheed@marvell.com/ - Removed stats which are already sent in ndo_get_stats64 V3: https://lore.kernel.org/all/20240105203823.2953604-8-srasheed@marvell.com/ - Removed duplicate reporting of TX/RX packets/bytes, which is already done during ndo_get_stats64 V2: https://lore.kernel.org/all/20231223134000.2906144-8-srasheed@marvell.com/ - No changes V1: https://lore.kernel.org/all/20231221092844.2885872-8-srasheed@marvell.com/ .../ethernet/marvell/octeon_ep_vf/Makefile | 3 +- .../marvell/octeon_ep_vf/octep_vf_ethtool.c | 273 ++++++++++++++++++ .../marvell/octeon_ep_vf/octep_vf_main.c | 1 + .../marvell/octeon_ep_vf/octep_vf_main.h | 1 + 4 files changed, 277 insertions(+), 1 deletion(-) create mode 100644 drivers/net/ethernet/marvell/octeon_ep_vf/octep_vf_ethtool.c diff --git a/drivers/net/ethernet/marvell/octeon_ep_vf/Makefile b/drivers/net/ethernet/marvell/octeon_ep_vf/Makefile index 694eb9b46e99..4a5f9fcb0b40 100644 --- a/drivers/net/ethernet/marvell/octeon_ep_vf/Makefile +++ b/drivers/net/ethernet/marvell/octeon_ep_vf/Makefile @@ -6,4 +6,5 @@ obj-$(CONFIG_OCTEON_EP_VF) += octeon_ep_vf.o octeon_ep_vf-y := octep_vf_main.o octep_vf_cn9k.o octep_vf_cnxk.o \ - octep_vf_tx.o octep_vf_rx.o octep_vf_mbox.o + octep_vf_tx.o octep_vf_rx.o octep_vf_mbox.o \ + octep_vf_ethtool.o diff --git a/drivers/net/ethernet/marvell/octeon_ep_vf/octep_vf_ethtool.c b/drivers/net/ethernet/marvell/octeon_ep_vf/octep_vf_ethtool.c new file mode 100644 index 000000000000..a1979b45e355 --- /dev/null +++ b/drivers/net/ethernet/marvell/octeon_ep_vf/octep_vf_ethtool.c @@ -0,0 +1,273 @@ +// SPDX-License-Identifier: GPL-2.0 +/* Marvell Octeon EP (EndPoint) VF Ethernet Driver + * + * Copyright (C) 2020 Marvell. + * + */ + +#include +#include +#include + +#include "octep_vf_config.h" +#include "octep_vf_main.h" + +static const char octep_vf_gstrings_global_stats[][ETH_GSTRING_LEN] = { + "rx_alloc_errors", + "tx_busy_errors", + "tx_hw_pkts", + "tx_hw_octs", + "tx_hw_bcast", + "tx_hw_mcast", + "rx_hw_pkts", + "rx_hw_bytes", + "rx_hw_bcast", + "rx_dropped_bytes_fifo_full", +}; + +#define OCTEP_VF_GLOBAL_STATS_CNT (sizeof(octep_vf_gstrings_global_stats) / ETH_GSTRING_LEN) + +static const char octep_vf_gstrings_tx_q_stats[][ETH_GSTRING_LEN] = { + "tx_packets_posted[Q-%u]", + "tx_packets_completed[Q-%u]", + "tx_bytes[Q-%u]", + "tx_busy[Q-%u]", +}; + +#define OCTEP_VF_TX_Q_STATS_CNT (sizeof(octep_vf_gstrings_tx_q_stats) / ETH_GSTRING_LEN) + +static const char octep_vf_gstrings_rx_q_stats[][ETH_GSTRING_LEN] = { + "rx_packets[Q-%u]", + "rx_bytes[Q-%u]", + "rx_alloc_errors[Q-%u]", +}; + +#define OCTEP_VF_RX_Q_STATS_CNT (sizeof(octep_vf_gstrings_rx_q_stats) / ETH_GSTRING_LEN) + +static void octep_vf_get_drvinfo(struct net_device *netdev, + struct ethtool_drvinfo *info) +{ + struct octep_vf_device *oct = netdev_priv(netdev); + + strscpy(info->driver, OCTEP_VF_DRV_NAME, sizeof(info->driver)); + strscpy(info->bus_info, pci_name(oct->pdev), sizeof(info->bus_info)); +} + +static void octep_vf_get_strings(struct net_device *netdev, + u32 stringset, u8 *data) +{ + struct octep_vf_device *oct = netdev_priv(netdev); + u16 num_queues = CFG_GET_PORTS_ACTIVE_IO_RINGS(oct->conf); + char *strings = (char *)data; + int i, j; + + switch (stringset) { + case ETH_SS_STATS: + for (i = 0; i < OCTEP_VF_GLOBAL_STATS_CNT; i++) { + snprintf(strings, ETH_GSTRING_LEN, + octep_vf_gstrings_global_stats[i]); + strings += ETH_GSTRING_LEN; + } + + for (i = 0; i < num_queues; i++) { + for (j = 0; j < OCTEP_VF_TX_Q_STATS_CNT; j++) { + snprintf(strings, ETH_GSTRING_LEN, + octep_vf_gstrings_tx_q_stats[j], i); + strings += ETH_GSTRING_LEN; + } + } + + for (i = 0; i < num_queues; i++) { + for (j = 0; j < OCTEP_VF_RX_Q_STATS_CNT; j++) { + snprintf(strings, ETH_GSTRING_LEN, + octep_vf_gstrings_rx_q_stats[j], i); + strings += ETH_GSTRING_LEN; + } + } + break; + default: + break; + } +} + +static int octep_vf_get_sset_count(struct net_device *netdev, int sset) +{ + struct octep_vf_device *oct = netdev_priv(netdev); + u16 num_queues = CFG_GET_PORTS_ACTIVE_IO_RINGS(oct->conf); + + switch (sset) { + case ETH_SS_STATS: + return OCTEP_VF_GLOBAL_STATS_CNT + (num_queues * + (OCTEP_VF_TX_Q_STATS_CNT + OCTEP_VF_RX_Q_STATS_CNT)); + break; + default: + return -EOPNOTSUPP; + } +} + +static void octep_vf_get_ethtool_stats(struct net_device *netdev, + struct ethtool_stats *stats, u64 *data) +{ + struct octep_vf_device *oct = netdev_priv(netdev); + struct octep_vf_iface_tx_stats *iface_tx_stats; + struct octep_vf_iface_rx_stats *iface_rx_stats; + u64 rx_alloc_errors, tx_busy_errors; + int q, i; + + rx_alloc_errors = 0; + tx_busy_errors = 0; + + octep_vf_get_if_stats(oct); + iface_tx_stats = &oct->iface_tx_stats; + iface_rx_stats = &oct->iface_rx_stats; + + for (q = 0; q < oct->num_oqs; q++) { + struct octep_vf_iq *iq = oct->iq[q]; + struct octep_vf_oq *oq = oct->oq[q]; + + tx_busy_errors += iq->stats.tx_busy; + rx_alloc_errors += oq->stats.alloc_failures; + } + i = 0; + data[i++] = rx_alloc_errors; + data[i++] = tx_busy_errors; + data[i++] = iface_tx_stats->pkts; + data[i++] = iface_tx_stats->octs; + data[i++] = iface_tx_stats->bcst; + data[i++] = iface_tx_stats->mcst; + data[i++] = iface_rx_stats->pkts; + data[i++] = iface_rx_stats->octets; + data[i++] = iface_rx_stats->bcast_pkts; + data[i++] = iface_rx_stats->dropped_octets_fifo_full; + + /* Per Tx Queue stats */ + for (q = 0; q < oct->num_iqs; q++) { + struct octep_vf_iq *iq = oct->iq[q]; + + data[i++] = iq->stats.instr_posted; + data[i++] = iq->stats.instr_completed; + data[i++] = iq->stats.bytes_sent; + data[i++] = iq->stats.tx_busy; + } + + /* Per Rx Queue stats */ + for (q = 0; q < oct->num_oqs; q++) { + struct octep_vf_oq *oq = oct->oq[q]; + + data[i++] = oq->stats.packets; + data[i++] = oq->stats.bytes; + data[i++] = oq->stats.alloc_failures; + } +} + +#define OCTEP_VF_SET_ETHTOOL_LINK_MODES_BITMAP(octep_vf_speeds, ksettings, name) \ +{ \ + if ((octep_vf_speeds) & BIT(OCTEP_VF_LINK_MODE_10GBASE_T)) \ + ethtool_link_ksettings_add_link_mode(ksettings, name, 10000baseT_Full); \ + if ((octep_vf_speeds) & BIT(OCTEP_VF_LINK_MODE_10GBASE_R)) \ + ethtool_link_ksettings_add_link_mode(ksettings, name, 10000baseR_FEC); \ + if ((octep_vf_speeds) & BIT(OCTEP_VF_LINK_MODE_10GBASE_CR)) \ + ethtool_link_ksettings_add_link_mode(ksettings, name, 10000baseCR_Full); \ + if ((octep_vf_speeds) & BIT(OCTEP_VF_LINK_MODE_10GBASE_KR)) \ + ethtool_link_ksettings_add_link_mode(ksettings, name, 10000baseKR_Full); \ + if ((octep_vf_speeds) & BIT(OCTEP_VF_LINK_MODE_10GBASE_LR)) \ + ethtool_link_ksettings_add_link_mode(ksettings, name, 10000baseLR_Full); \ + if ((octep_vf_speeds) & BIT(OCTEP_VF_LINK_MODE_10GBASE_SR)) \ + ethtool_link_ksettings_add_link_mode(ksettings, name, 10000baseSR_Full); \ + if ((octep_vf_speeds) & BIT(OCTEP_VF_LINK_MODE_25GBASE_CR)) \ + ethtool_link_ksettings_add_link_mode(ksettings, name, 25000baseCR_Full); \ + if ((octep_vf_speeds) & BIT(OCTEP_VF_LINK_MODE_25GBASE_KR)) \ + ethtool_link_ksettings_add_link_mode(ksettings, name, 25000baseKR_Full); \ + if ((octep_vf_speeds) & BIT(OCTEP_VF_LINK_MODE_25GBASE_SR)) \ + ethtool_link_ksettings_add_link_mode(ksettings, name, 25000baseSR_Full); \ + if ((octep_vf_speeds) & BIT(OCTEP_VF_LINK_MODE_40GBASE_CR4)) \ + ethtool_link_ksettings_add_link_mode(ksettings, name, 40000baseCR4_Full); \ + if ((octep_vf_speeds) & BIT(OCTEP_VF_LINK_MODE_40GBASE_KR4)) \ + ethtool_link_ksettings_add_link_mode(ksettings, name, 40000baseKR4_Full); \ + if ((octep_vf_speeds) & BIT(OCTEP_VF_LINK_MODE_40GBASE_LR4)) \ + ethtool_link_ksettings_add_link_mode(ksettings, name, 40000baseLR4_Full); \ + if ((octep_vf_speeds) & BIT(OCTEP_VF_LINK_MODE_40GBASE_SR4)) \ + ethtool_link_ksettings_add_link_mode(ksettings, name, 40000baseSR4_Full); \ + if ((octep_vf_speeds) & BIT(OCTEP_VF_LINK_MODE_50GBASE_CR2)) \ + ethtool_link_ksettings_add_link_mode(ksettings, name, 50000baseCR2_Full); \ + if ((octep_vf_speeds) & BIT(OCTEP_VF_LINK_MODE_50GBASE_KR2)) \ + ethtool_link_ksettings_add_link_mode(ksettings, name, 50000baseKR2_Full); \ + if ((octep_vf_speeds) & BIT(OCTEP_VF_LINK_MODE_50GBASE_SR2)) \ + ethtool_link_ksettings_add_link_mode(ksettings, name, 50000baseSR2_Full); \ + if ((octep_vf_speeds) & BIT(OCTEP_VF_LINK_MODE_50GBASE_CR)) \ + ethtool_link_ksettings_add_link_mode(ksettings, name, 50000baseCR_Full); \ + if ((octep_vf_speeds) & BIT(OCTEP_VF_LINK_MODE_50GBASE_KR)) \ + ethtool_link_ksettings_add_link_mode(ksettings, name, 50000baseKR_Full); \ + if ((octep_vf_speeds) & BIT(OCTEP_VF_LINK_MODE_50GBASE_LR)) \ + ethtool_link_ksettings_add_link_mode(ksettings, name, 50000baseLR_ER_FR_Full); \ + if ((octep_vf_speeds) & BIT(OCTEP_VF_LINK_MODE_50GBASE_SR)) \ + ethtool_link_ksettings_add_link_mode(ksettings, name, 50000baseSR_Full); \ + if ((octep_vf_speeds) & BIT(OCTEP_VF_LINK_MODE_100GBASE_CR4)) \ + ethtool_link_ksettings_add_link_mode(ksettings, name, 100000baseCR4_Full); \ + if ((octep_vf_speeds) & BIT(OCTEP_VF_LINK_MODE_100GBASE_KR4)) \ + ethtool_link_ksettings_add_link_mode(ksettings, name, 100000baseKR4_Full); \ + if ((octep_vf_speeds) & BIT(OCTEP_VF_LINK_MODE_100GBASE_LR4)) \ + ethtool_link_ksettings_add_link_mode(ksettings, name, 100000baseLR4_ER4_Full); \ + if ((octep_vf_speeds) & BIT(OCTEP_VF_LINK_MODE_100GBASE_SR4)) \ + ethtool_link_ksettings_add_link_mode(ksettings, name, 100000baseSR4_Full); \ +} + +static int octep_vf_get_link_ksettings(struct net_device *netdev, + struct ethtool_link_ksettings *cmd) +{ + struct octep_vf_device *oct = netdev_priv(netdev); + struct octep_vf_iface_link_info *link_info; + u32 advertised_modes, supported_modes; + + ethtool_link_ksettings_zero_link_mode(cmd, supported); + ethtool_link_ksettings_zero_link_mode(cmd, advertising); + + octep_vf_get_link_info(oct); + + advertised_modes = oct->link_info.advertised_modes; + supported_modes = oct->link_info.supported_modes; + link_info = &oct->link_info; + + OCTEP_VF_SET_ETHTOOL_LINK_MODES_BITMAP(supported_modes, cmd, supported); + OCTEP_VF_SET_ETHTOOL_LINK_MODES_BITMAP(advertised_modes, cmd, advertising); + + if (link_info->autoneg) { + if (link_info->autoneg & OCTEP_VF_LINK_MODE_AUTONEG_SUPPORTED) + ethtool_link_ksettings_add_link_mode(cmd, supported, Autoneg); + if (link_info->autoneg & OCTEP_VF_LINK_MODE_AUTONEG_ADVERTISED) { + ethtool_link_ksettings_add_link_mode(cmd, advertising, Autoneg); + cmd->base.autoneg = AUTONEG_ENABLE; + } else { + cmd->base.autoneg = AUTONEG_DISABLE; + } + } else { + cmd->base.autoneg = AUTONEG_DISABLE; + } + + cmd->base.port = PORT_FIBRE; + ethtool_link_ksettings_add_link_mode(cmd, supported, FIBRE); + ethtool_link_ksettings_add_link_mode(cmd, advertising, FIBRE); + + if (netif_carrier_ok(netdev)) { + cmd->base.speed = link_info->speed; + cmd->base.duplex = DUPLEX_FULL; + } else { + cmd->base.speed = SPEED_UNKNOWN; + cmd->base.duplex = DUPLEX_UNKNOWN; + } + return 0; +} + +static const struct ethtool_ops octep_vf_ethtool_ops = { + .get_drvinfo = octep_vf_get_drvinfo, + .get_link = ethtool_op_get_link, + .get_strings = octep_vf_get_strings, + .get_sset_count = octep_vf_get_sset_count, + .get_ethtool_stats = octep_vf_get_ethtool_stats, + .get_link_ksettings = octep_vf_get_link_ksettings, +}; + +void octep_vf_set_ethtool_ops(struct net_device *netdev) +{ + netdev->ethtool_ops = &octep_vf_ethtool_ops; +} diff --git a/drivers/net/ethernet/marvell/octeon_ep_vf/octep_vf_main.c b/drivers/net/ethernet/marvell/octeon_ep_vf/octep_vf_main.c index e5d258980547..dd49d0b8b494 100644 --- a/drivers/net/ethernet/marvell/octeon_ep_vf/octep_vf_main.c +++ b/drivers/net/ethernet/marvell/octeon_ep_vf/octep_vf_main.c @@ -1095,6 +1095,7 @@ static int octep_vf_probe(struct pci_dev *pdev, const struct pci_device_id *ent) INIT_WORK(&octep_vf_dev->tx_timeout_task, octep_vf_tx_timeout_task); netdev->netdev_ops = &octep_vf_netdev_ops; + octep_vf_set_ethtool_ops(netdev); netif_carrier_off(netdev); if (octep_vf_setup_mbox(octep_vf_dev)) { diff --git a/drivers/net/ethernet/marvell/octeon_ep_vf/octep_vf_main.h b/drivers/net/ethernet/marvell/octeon_ep_vf/octep_vf_main.h index 5a3b545ad590..5769f62545cd 100644 --- a/drivers/net/ethernet/marvell/octeon_ep_vf/octep_vf_main.h +++ b/drivers/net/ethernet/marvell/octeon_ep_vf/octep_vf_main.h @@ -327,6 +327,7 @@ void octep_vf_device_setup_cn93(struct octep_vf_device *oct); void octep_vf_device_setup_cnxk(struct octep_vf_device *oct); int octep_vf_iq_process_completions(struct octep_vf_iq *iq, u16 budget); int octep_vf_oq_process_rx(struct octep_vf_oq *oq, int budget); +void octep_vf_set_ethtool_ops(struct net_device *netdev); int octep_vf_get_link_info(struct octep_vf_device *oct); int octep_vf_get_if_stats(struct octep_vf_device *oct); void octep_vf_mbox_work(struct work_struct *work);