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Received-SPF: Pass (protection.outlook.com: domain of amd.com designates 165.204.84.17 as permitted sender) receiver=protection.outlook.com; client-ip=165.204.84.17; helo=SATLEXMB04.amd.com; pr=C Received: from SATLEXMB04.amd.com (165.204.84.17) by CO1PEPF000044F7.mail.protection.outlook.com (10.167.241.197) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.20.7292.0 via Frontend Transport; Wed, 7 Feb 2024 03:14:21 +0000 Received: from driver-dev1.pensando.io (10.180.168.240) by SATLEXMB04.amd.com (10.181.40.145) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.1.2507.34; Tue, 6 Feb 2024 21:14:18 -0600 From: Andrew Boyer To: CC: Andrew Boyer , Subject: [PATCH v3 10/13] net/ionic: fix device close sequence to avoid crash Date: Tue, 6 Feb 2024 19:13:14 -0800 Message-ID: <20240207031317.32293-11-andrew.boyer@amd.com> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20240207031317.32293-1-andrew.boyer@amd.com> References: <20240202193238.62669-1-andrew.boyer@amd.com> <20240207031317.32293-1-andrew.boyer@amd.com> MIME-Version: 1.0 X-Originating-IP: [10.180.168.240] X-ClientProxiedBy: SATLEXMB03.amd.com (10.181.40.144) To SATLEXMB04.amd.com (10.181.40.145) X-EOPAttributedMessage: 0 X-MS-PublicTrafficType: Email X-MS-TrafficTypeDiagnostic: CO1PEPF000044F7:EE_|CH2PR12MB4167:EE_ X-MS-Office365-Filtering-Correlation-Id: 35192e18-22da-4fc1-8d76-08dc278ae15c X-MS-Exchange-SenderADCheck: 1 X-MS-Exchange-AntiSpam-Relay: 0 X-Microsoft-Antispam: BCL:0; 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DIR:OUT; SFP:1101; X-OriginatorOrg: amd.com X-MS-Exchange-CrossTenant-OriginalArrivalTime: 07 Feb 2024 03:14:21.8114 (UTC) X-MS-Exchange-CrossTenant-Network-Message-Id: 35192e18-22da-4fc1-8d76-08dc278ae15c X-MS-Exchange-CrossTenant-Id: 3dd8961f-e488-4e60-8e11-a82d994e183d X-MS-Exchange-CrossTenant-OriginalAttributedTenantConnectingIp: TenantId=3dd8961f-e488-4e60-8e11-a82d994e183d; Ip=[165.204.84.17]; Helo=[SATLEXMB04.amd.com] X-MS-Exchange-CrossTenant-AuthSource: CO1PEPF000044F7.namprd21.prod.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Anonymous X-MS-Exchange-CrossTenant-FromEntityHeader: HybridOnPrem X-MS-Exchange-Transport-CrossTenantHeadersStamped: CH2PR12MB4167 X-BeenThere: dev@dpdk.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: DPDK patches and discussions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: dev-bounces@dpdk.org The close routine should release all resources, but not call rte_eth_dev_destroy(). As written this code will call rte_eth_dev_release_port() twice and segfault. Instead, move rte_eth_dev_destroy() to the remove routine. eth_ionic_dev_uninit() will call close if necessary. Fixes: 175e4e7ed760 ("net/ionic: complete release on close") Cc: stable@dpdk.org Signed-off-by: Andrew Boyer --- drivers/net/ionic/ionic_ethdev.c | 30 +++++++++++++++--------------- 1 file changed, 15 insertions(+), 15 deletions(-) diff --git a/drivers/net/ionic/ionic_ethdev.c b/drivers/net/ionic/ionic_ethdev.c index 7c55a26956..bedcf958e2 100644 --- a/drivers/net/ionic/ionic_ethdev.c +++ b/drivers/net/ionic/ionic_ethdev.c @@ -1009,19 +1009,21 @@ ionic_dev_close(struct rte_eth_dev *eth_dev) ionic_lif_stop(lif); - ionic_lif_free_queues(lif); - IONIC_PRINT(NOTICE, "Removing device %s", eth_dev->device->name); if (adapter->intf->unconfigure_intr) (*adapter->intf->unconfigure_intr)(adapter); - rte_eth_dev_destroy(eth_dev, eth_ionic_dev_uninit); - ionic_port_reset(adapter); ionic_reset(adapter); + + ionic_lif_free_queues(lif); + ionic_lif_deinit(lif); + ionic_lif_free(lif); /* Does not free LIF object */ + if (adapter->intf->unmap_bars) (*adapter->intf->unmap_bars)(adapter); + lif->adapter = NULL; rte_free(adapter); return 0; @@ -1098,21 +1100,18 @@ eth_ionic_dev_init(struct rte_eth_dev *eth_dev, void *init_params) static int eth_ionic_dev_uninit(struct rte_eth_dev *eth_dev) { - struct ionic_lif *lif = IONIC_ETH_DEV_TO_LIF(eth_dev); - struct ionic_adapter *adapter = lif->adapter; - IONIC_PRINT_CALL(); if (rte_eal_process_type() != RTE_PROC_PRIMARY) return 0; - adapter->lif = NULL; - - ionic_lif_deinit(lif); - ionic_lif_free(lif); + if (eth_dev->state != RTE_ETH_DEV_UNUSED) + ionic_dev_close(eth_dev); - if (!(lif->state & IONIC_LIF_F_FW_RESET)) - ionic_lif_reset(lif); + eth_dev->dev_ops = NULL; + eth_dev->rx_pkt_burst = NULL; + eth_dev->tx_pkt_burst = NULL; + eth_dev->tx_pkt_prepare = NULL; return 0; } @@ -1267,17 +1266,18 @@ eth_ionic_dev_remove(struct rte_device *rte_dev) { char name[RTE_ETH_NAME_MAX_LEN]; struct rte_eth_dev *eth_dev; + int ret = 0; /* Adapter lookup is using the eth_dev name */ snprintf(name, sizeof(name), "%s_lif", rte_dev->name); eth_dev = rte_eth_dev_allocated(name); if (eth_dev) - ionic_dev_close(eth_dev); + ret = rte_eth_dev_destroy(eth_dev, eth_ionic_dev_uninit); else IONIC_PRINT(DEBUG, "Cannot find device %s", rte_dev->name); - return 0; + return ret; } RTE_LOG_REGISTER_DEFAULT(ionic_logtype, NOTICE);