From patchwork Mon May 6 07:04:48 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: "Arinzon, David" X-Patchwork-Id: 13655001 X-Patchwork-Delegate: kuba@kernel.org Received: from smtp-fw-9106.amazon.com (smtp-fw-9106.amazon.com [207.171.188.206]) (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 820C814039E for ; Mon, 6 May 2024 07:05:12 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=207.171.188.206 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1714979114; cv=none; b=MM2uEtE+fmfWg0ZwvwdwEwbkqX9Hit+sbrCd2qwE0wRSAshZVmOVmV6UkDK8uGTHstiNtjVdjWYlmErKw72aW+PYyeA36FD6qanH79d3eBeL20Jbrj9BlJgeqOwy7mTSRGgjbDQaXP8Wt4UDv7j0jx5sm4Wi4r7dyfVslatldWA= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1714979114; c=relaxed/simple; bh=3sjiuCuEVgzWKmn6V7by1aqXmRfcSV/TWODtIWQw2Tc=; h=From:To:CC:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version:Content-Type; b=imTDVB0TUYXLYAKUPYirnLSww9YlbJbFzUGXOhvTqrZBGvGYSyexkQ6VYGVPlyq/glhJ4qAx/OnpFPQBkCJpot2IzfpMXJbngLrmriMT0dbAp7wV55vEAXc3/J5vg5A9xVO4w1Vnd5iO94V2Uw1HpRolydV13B9wGjeCTtLEhWw= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=quarantine dis=none) header.from=amazon.com; spf=pass smtp.mailfrom=amazon.com; dkim=pass (1024-bit key) header.d=amazon.com header.i=@amazon.com header.b=Z6r2yDRy; arc=none smtp.client-ip=207.171.188.206 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=quarantine dis=none) header.from=amazon.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=amazon.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=amazon.com header.i=@amazon.com header.b="Z6r2yDRy" DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=amazon.com; i=@amazon.com; q=dns/txt; s=amazon201209; t=1714979113; x=1746515113; h=from:to:cc:subject:date:message-id:in-reply-to: references:mime-version:content-transfer-encoding; bh=hqK7YjX30RcyYWudkzqCLxv1PJIQ5kQZobD1wSDzwYI=; b=Z6r2yDRyZKGi4HQ8GO+Hw/j9u+NG2PRw50S2F9pc/8gYkcn4lF7kNJLx viMiUKWeI1WPatsXX1nhqAEa4G6Py74VRGwd3znMPF++Ja7GnGD9yCmns ibGMhxJ1N37AmGnEuB92CJSH0JWaokqZT/XoAYrldooiZdJzxzVhmL3OV E=; X-IronPort-AV: E=Sophos;i="6.07,257,1708387200"; d="scan'208";a="723871357" Received: from pdx4-co-svc-p1-lb2-vlan2.amazon.com (HELO smtpout.prod.us-east-1.prod.farcaster.email.amazon.dev) ([10.25.36.210]) by smtp-border-fw-9106.sea19.amazon.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 06 May 2024 07:05:06 +0000 Received: from EX19MTAUEA002.ant.amazon.com [10.0.0.204:50748] by smtpin.naws.us-east-1.prod.farcaster.email.amazon.dev [10.0.59.248:2525] with esmtp (Farcaster) id 49c5451d-6ef1-4df8-8ea0-a260677864b1; Mon, 6 May 2024 07:05:05 +0000 (UTC) X-Farcaster-Flow-ID: 49c5451d-6ef1-4df8-8ea0-a260677864b1 Received: from EX19D008UEA004.ant.amazon.com (10.252.134.191) by EX19MTAUEA002.ant.amazon.com (10.252.134.9) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.2.1258.28; Mon, 6 May 2024 07:05:04 +0000 Received: from EX19MTAUEA001.ant.amazon.com (10.252.134.203) by EX19D008UEA004.ant.amazon.com (10.252.134.191) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.2.1258.28; Mon, 6 May 2024 07:05:04 +0000 Received: from dev-dsk-darinzon-1c-05962a8d.eu-west-1.amazon.com (172.19.80.187) by mail-relay.amazon.com (10.252.134.102) with Microsoft SMTP Server id 15.2.1258.28 via Frontend Transport; Mon, 6 May 2024 07:05:02 +0000 From: To: David Miller , Jakub Kicinski , CC: David Arinzon , "Woodhouse, David" , "Machulsky, Zorik" , "Matushevsky, Alexander" , Saeed Bshara , "Wilson, Matt" , "Liguori, Anthony" , "Bshara, Nafea" , "Belgazal, Netanel" , "Saidi, Ali" , "Herrenschmidt, Benjamin" , "Kiyanovski, Arthur" , "Dagan, Noam" , "Agroskin, Shay" , "Itzko, Shahar" , "Abboud, Osama" , "Ostrovsky, Evgeny" , "Tabachnik, Ofir" Subject: [PATCH v1 net-next 1/6] net: ena: Add a counter for driver's reset failures Date: Mon, 6 May 2024 07:04:48 +0000 Message-ID: <20240506070453.17054-2-darinzon@amazon.com> X-Mailer: git-send-email 2.40.1 In-Reply-To: <20240506070453.17054-1-darinzon@amazon.com> References: <20240506070453.17054-1-darinzon@amazon.com> Precedence: bulk X-Mailing-List: netdev@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-Patchwork-Delegate: kuba@kernel.org From: David Arinzon This patch adds a counter to the ena_adapter struct in order to keep track of reset failures. The counter is incremented every time either ena_restore_device() or ena_destroy_device() fail. Signed-off-by: Osama Abboud Signed-off-by: David Arinzon --- drivers/net/ethernet/amazon/ena/ena_ethtool.c | 1 + drivers/net/ethernet/amazon/ena/ena_netdev.c | 18 ++++++++++++------ drivers/net/ethernet/amazon/ena/ena_netdev.h | 1 + 3 files changed, 14 insertions(+), 6 deletions(-) diff --git a/drivers/net/ethernet/amazon/ena/ena_ethtool.c b/drivers/net/ethernet/amazon/ena/ena_ethtool.c index 0cb6cc1c..28583db8 100644 --- a/drivers/net/ethernet/amazon/ena/ena_ethtool.c +++ b/drivers/net/ethernet/amazon/ena/ena_ethtool.c @@ -49,6 +49,7 @@ static const struct ena_stats ena_stats_global_strings[] = { ENA_STAT_GLOBAL_ENTRY(interface_up), ENA_STAT_GLOBAL_ENTRY(interface_down), ENA_STAT_GLOBAL_ENTRY(admin_q_pause), + ENA_STAT_GLOBAL_ENTRY(reset_fail), }; static const struct ena_stats ena_stats_eni_strings[] = { diff --git a/drivers/net/ethernet/amazon/ena/ena_netdev.c b/drivers/net/ethernet/amazon/ena/ena_netdev.c index be5acfa4..683088af 100644 --- a/drivers/net/ethernet/amazon/ena/ena_netdev.c +++ b/drivers/net/ethernet/amazon/ena/ena_netdev.c @@ -42,7 +42,7 @@ MODULE_DEVICE_TABLE(pci, ena_pci_tbl); static int ena_rss_init_default(struct ena_adapter *adapter); static void check_for_admin_com_state(struct ena_adapter *adapter); -static void ena_destroy_device(struct ena_adapter *adapter, bool graceful); +static int ena_destroy_device(struct ena_adapter *adapter, bool graceful); static int ena_restore_device(struct ena_adapter *adapter); static void ena_tx_timeout(struct net_device *dev, unsigned int txqueue) @@ -3235,14 +3235,15 @@ err_disable_msix: return rc; } -static void ena_destroy_device(struct ena_adapter *adapter, bool graceful) +static int ena_destroy_device(struct ena_adapter *adapter, bool graceful) { struct net_device *netdev = adapter->netdev; struct ena_com_dev *ena_dev = adapter->ena_dev; bool dev_up; + int rc = 0; if (!test_bit(ENA_FLAG_DEVICE_RUNNING, &adapter->flags)) - return; + return 0; netif_carrier_off(netdev); @@ -3260,7 +3261,7 @@ static void ena_destroy_device(struct ena_adapter *adapter, bool graceful) * and device is up, ena_down() already reset the device. */ if (!(test_bit(ENA_FLAG_TRIGGER_RESET, &adapter->flags) && dev_up)) - ena_com_dev_reset(adapter->ena_dev, adapter->reset_reason); + rc = ena_com_dev_reset(adapter->ena_dev, adapter->reset_reason); ena_free_mgmnt_irq(adapter); @@ -3279,6 +3280,8 @@ static void ena_destroy_device(struct ena_adapter *adapter, bool graceful) clear_bit(ENA_FLAG_TRIGGER_RESET, &adapter->flags); clear_bit(ENA_FLAG_DEVICE_RUNNING, &adapter->flags); + + return rc; } static int ena_restore_device(struct ena_adapter *adapter) @@ -3355,14 +3358,17 @@ err: static void ena_fw_reset_device(struct work_struct *work) { + int rc = 0; + struct ena_adapter *adapter = container_of(work, struct ena_adapter, reset_task); rtnl_lock(); if (likely(test_bit(ENA_FLAG_TRIGGER_RESET, &adapter->flags))) { - ena_destroy_device(adapter, false); - ena_restore_device(adapter); + rc |= ena_destroy_device(adapter, false); + rc |= ena_restore_device(adapter); + adapter->dev_stats.reset_fail += !!rc; dev_err(&adapter->pdev->dev, "Device reset completed successfully\n"); } diff --git a/drivers/net/ethernet/amazon/ena/ena_netdev.h b/drivers/net/ethernet/amazon/ena/ena_netdev.h index 6d2cc202..d5950974 100644 --- a/drivers/net/ethernet/amazon/ena/ena_netdev.h +++ b/drivers/net/ethernet/amazon/ena/ena_netdev.h @@ -290,6 +290,7 @@ struct ena_stats_dev { u64 admin_q_pause; u64 rx_drops; u64 tx_drops; + u64 reset_fail; }; enum ena_flags_t {