From patchwork Sat Dec 3 21:54:11 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Gerhard Engleder X-Patchwork-Id: 13063669 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 Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id A6523C352A1 for ; Sat, 3 Dec 2022 22:14:07 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S229726AbiLCWOE (ORCPT ); Sat, 3 Dec 2022 17:14:04 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:33746 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229758AbiLCWN5 (ORCPT ); Sat, 3 Dec 2022 17:13:57 -0500 Received: from mx01lb.world4you.com (mx01lb.world4you.com [81.19.149.111]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id BF4901CFD9; Sat, 3 Dec 2022 14:13:51 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=engleder-embedded.com; s=dkim11; h=Content-Transfer-Encoding:MIME-Version: References:In-Reply-To:Message-Id:Date:Subject:Cc:To:From:Sender:Reply-To: Content-Type:Content-ID:Content-Description:Resent-Date:Resent-From: Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Id:List-Help: List-Unsubscribe:List-Subscribe:List-Post:List-Owner:List-Archive; bh=qBiNkycqJaZVMSfXgU/O6KmyYN7BmV7kqdW0xUnelh4=; b=iHcSaJVnJhcJKjdkiykJdYlOUN i00INF0LIbgymRHp6ZFSHLFANyAx/Zyb/tFPxIUMWjiy7Vag/byzUMzUOkZFXI2vfjimpsfjNUmW2 72WL3Si8mDLRO4AlvPjZCHIcpTEeFwm/tAl8kb6AWmmPO3jVp+FiMvejAduNnBrThLhg=; Received: from 88-117-56-227.adsl.highway.telekom.at ([88.117.56.227] helo=hornet.engleder.at) by mx01lb.world4you.com with esmtpsa (TLS1.2) tls TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 (Exim 4.94.2) (envelope-from ) id 1p1aSs-0003Ir-52; Sat, 03 Dec 2022 22:54:30 +0100 From: Gerhard Engleder To: netdev@vger.kernel.org, bpf@vger.kernel.org Cc: davem@davemloft.net, kuba@kernel.org, edumazet@google.com, pabeni@redhat.com, ast@kernel.org, daniel@iogearbox.net, hawk@kernel.org, john.fastabend@gmail.com, Gerhard Engleder Subject: [PATCH net-next 1/6] tsnep: Add adapter down state Date: Sat, 3 Dec 2022 22:54:11 +0100 Message-Id: <20221203215416.13465-2-gerhard@engleder-embedded.com> X-Mailer: git-send-email 2.30.2 In-Reply-To: <20221203215416.13465-1-gerhard@engleder-embedded.com> References: <20221203215416.13465-1-gerhard@engleder-embedded.com> MIME-Version: 1.0 X-AV-Do-Run: Yes Precedence: bulk List-ID: X-Mailing-List: netdev@vger.kernel.org X-Patchwork-Delegate: kuba@kernel.org Add adapter state with flag for down state. This flag will be used by the XDP TX path to deny TX if adapter is down. Signed-off-by: Gerhard Engleder --- drivers/net/ethernet/engleder/tsnep.h | 1 + drivers/net/ethernet/engleder/tsnep_main.c | 11 +++++++++++ 2 files changed, 12 insertions(+) diff --git a/drivers/net/ethernet/engleder/tsnep.h b/drivers/net/ethernet/engleder/tsnep.h index f93ba48bac3f..f72c0c4da1a9 100644 --- a/drivers/net/ethernet/engleder/tsnep.h +++ b/drivers/net/ethernet/engleder/tsnep.h @@ -148,6 +148,7 @@ struct tsnep_adapter { phy_interface_t phy_mode; struct phy_device *phydev; int msg_enable; + unsigned long state; struct platform_device *pdev; struct device *dmadev; diff --git a/drivers/net/ethernet/engleder/tsnep_main.c b/drivers/net/ethernet/engleder/tsnep_main.c index bf0190e1d2ea..a28fde9fb060 100644 --- a/drivers/net/ethernet/engleder/tsnep_main.c +++ b/drivers/net/ethernet/engleder/tsnep_main.c @@ -43,6 +43,10 @@ #define TSNEP_COALESCE_USECS_MAX ((ECM_INT_DELAY_MASK >> ECM_INT_DELAY_SHIFT) * \ ECM_INT_DELAY_BASE_US + ECM_INT_DELAY_BASE_US - 1) +enum { + __TSNEP_DOWN, +}; + static void tsnep_enable_irq(struct tsnep_adapter *adapter, u32 mask) { iowrite32(mask, adapter->addr + ECM_INT_ENABLE); @@ -1143,6 +1147,8 @@ static int tsnep_netdev_open(struct net_device *netdev) tsnep_enable_irq(adapter, adapter->queue[i].irq_mask); } + clear_bit(__TSNEP_DOWN, &adapter->state); + return 0; phy_failed: @@ -1165,6 +1171,8 @@ static int tsnep_netdev_close(struct net_device *netdev) struct tsnep_adapter *adapter = netdev_priv(netdev); int i; + set_bit(__TSNEP_DOWN, &adapter->state); + tsnep_disable_irq(adapter, ECM_INT_LINK); tsnep_phy_close(adapter); @@ -1518,6 +1526,7 @@ static int tsnep_probe(struct platform_device *pdev) adapter->msg_enable = NETIF_MSG_DRV | NETIF_MSG_PROBE | NETIF_MSG_LINK | NETIF_MSG_IFUP | NETIF_MSG_IFDOWN | NETIF_MSG_TX_QUEUED; + set_bit(__TSNEP_DOWN, &adapter->state); netdev->min_mtu = ETH_MIN_MTU; netdev->max_mtu = TSNEP_MAX_FRAME_SIZE; @@ -1614,6 +1623,8 @@ static int tsnep_remove(struct platform_device *pdev) { struct tsnep_adapter *adapter = platform_get_drvdata(pdev); + set_bit(__TSNEP_DOWN, &adapter->state); + unregister_netdev(adapter->netdev); tsnep_rxnfc_cleanup(adapter);