From patchwork Fri Jan 15 09:06:08 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Bhaskar Upadhaya X-Patchwork-Id: 12021951 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=-18.8 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,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 9D908C433E6 for ; Fri, 15 Jan 2021 09:07:25 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 695B523434 for ; Fri, 15 Jan 2021 09:07:25 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1728147AbhAOJHK (ORCPT ); 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Fri, 15 Jan 2021 01:06:24 -0800 Received: from SC-EXCH01.marvell.com (10.93.176.81) by DC5-EXCH02.marvell.com (10.69.176.39) with Microsoft SMTP Server (TLS) id 15.0.1497.2; Fri, 15 Jan 2021 01:06:22 -0800 Received: from DC5-EXCH02.marvell.com (10.69.176.39) by SC-EXCH01.marvell.com (10.93.176.81) with Microsoft SMTP Server (TLS) id 15.0.1497.2; Fri, 15 Jan 2021 01:06:22 -0800 Received: from maili.marvell.com (10.69.176.80) by DC5-EXCH02.marvell.com (10.69.176.39) with Microsoft SMTP Server id 15.0.1497.2 via Frontend Transport; Fri, 15 Jan 2021 01:06:22 -0800 Received: from dc5-eodlnx05.marvell.com (dc5-eodlnx05.marvell.com [10.69.113.147]) by maili.marvell.com (Postfix) with ESMTP id 4BC533F7040; Fri, 15 Jan 2021 01:06:22 -0800 (PST) From: Bhaskar Upadhaya To: , , , CC: Subject: [PATCH net-next 1/3] qede: add netpoll support for qede driver Date: Fri, 15 Jan 2021 01:06:08 -0800 Message-ID: <1610701570-29496-2-git-send-email-bupadhaya@marvell.com> X-Mailer: git-send-email 1.8.3.1 In-Reply-To: <1610701570-29496-1-git-send-email-bupadhaya@marvell.com> References: <1610701570-29496-1-git-send-email-bupadhaya@marvell.com> MIME-Version: 1.0 X-Proofpoint-Virus-Version: vendor=fsecure engine=2.50.10434:6.0.343,18.0.737 definitions=2021-01-15_06:2021-01-15,2021-01-15 signatures=0 Precedence: bulk List-ID: X-Mailing-List: netdev@vger.kernel.org X-Patchwork-Delegate: kuba@kernel.org Add net poll controller support to transmit kernel printks over UDP Signed-off-by: Bhaskar Upadhaya Signed-off-by: Igor Russkikh Signed-off-by: Ariel Elior --- drivers/net/ethernet/qlogic/qede/qede.h | 4 ++++ drivers/net/ethernet/qlogic/qede/qede_fp.c | 14 ++++++++++++++ drivers/net/ethernet/qlogic/qede/qede_main.c | 3 +++ 3 files changed, 21 insertions(+) diff --git a/drivers/net/ethernet/qlogic/qede/qede.h b/drivers/net/ethernet/qlogic/qede/qede.h index 3efc5899f656..ac12e5beb596 100644 --- a/drivers/net/ethernet/qlogic/qede/qede.h +++ b/drivers/net/ethernet/qlogic/qede/qede.h @@ -582,6 +582,10 @@ int qede_add_tc_flower_fltr(struct qede_dev *edev, __be16 proto, void qede_forced_speed_maps_init(void); +#ifdef CONFIG_NET_POLL_CONTROLLER +void qede_poll_controller(struct net_device *dev); +#endif + #define RX_RING_SIZE_POW 13 #define RX_RING_SIZE ((u16)BIT(RX_RING_SIZE_POW)) #define NUM_RX_BDS_MAX (RX_RING_SIZE - 1) diff --git a/drivers/net/ethernet/qlogic/qede/qede_fp.c b/drivers/net/ethernet/qlogic/qede/qede_fp.c index a2494bf85007..a626f1f45212 100644 --- a/drivers/net/ethernet/qlogic/qede/qede_fp.c +++ b/drivers/net/ethernet/qlogic/qede/qede_fp.c @@ -1804,3 +1804,17 @@ netdev_features_t qede_features_check(struct sk_buff *skb, return features; } + +#ifdef CONFIG_NET_POLL_CONTROLLER +/* This is used by netconsole to send skbs without having to re-enable + * interrupts.It's not called while the normal interrupt routine is executing. + */ +void qede_poll_controller(struct net_device *dev) +{ + struct qede_dev *edev = netdev_priv(dev); + int i; + + for_each_queue(i) + napi_schedule(&edev->fp_array[i].napi); +} +#endif diff --git a/drivers/net/ethernet/qlogic/qede/qede_main.c b/drivers/net/ethernet/qlogic/qede/qede_main.c index 05e3a3b60269..2ff6c49de745 100644 --- a/drivers/net/ethernet/qlogic/qede/qede_main.c +++ b/drivers/net/ethernet/qlogic/qede/qede_main.c @@ -644,6 +644,9 @@ static const struct net_device_ops qede_netdev_ops = { .ndo_set_rx_mode = qede_set_rx_mode, .ndo_set_mac_address = qede_set_mac_addr, .ndo_validate_addr = eth_validate_addr, +#ifdef CONFIG_NET_POLL_CONTROLLER + .ndo_poll_controller = qede_poll_controller, +#endif .ndo_change_mtu = qede_change_mtu, .ndo_do_ioctl = qede_ioctl, .ndo_tx_timeout = qede_tx_timeout,