From: Yongseok Koh <yskoh@mellanox.com>
To: adrien.mazarguil@6wind.com, nelio.laranjeiro@6wind.com
Cc: dev@dpdk.org, Yongseok Koh <yskoh@mellanox.com>, stable@dpdk.org
Subject: [dpdk-dev] [PATCH] net/mlx5: fix device reference in secondary process
Date: Tue, 1 May 2018 23:13:20 -0700 [thread overview]
Message-ID: <20180502061320.6675-1-yskoh@mellanox.com> (raw)
rte_eth_devices[] is not shared between primary and secondary process, but
a static array to each process. The backward pointer of device (priv->dev)
must be reset when a secondary process attaches to a device.
Fixes: f8b9a3bad467 ("net/mlx5: install a socket to exchange a file descriptor")
Cc: stable@dpdk.org
Signed-off-by: Yongseok Koh <yskoh@mellanox.com>
---
drivers/net/mlx5/mlx5.c | 6 ++++++
1 file changed, 6 insertions(+)
diff --git a/drivers/net/mlx5/mlx5.c b/drivers/net/mlx5/mlx5.c
index 8f983061a..f606e3dd4 100644
--- a/drivers/net/mlx5/mlx5.c
+++ b/drivers/net/mlx5/mlx5.c
@@ -799,6 +799,12 @@ mlx5_pci_probe(struct rte_pci_driver *pci_drv __rte_unused,
}
eth_dev->device = &pci_dev->device;
eth_dev->dev_ops = &mlx5_dev_sec_ops;
+ /*
+ * rte_eth_devices[] is not shared but static to each
+ * process. The backward pointer should be reset.
+ */
+ priv = eth_dev->data->dev_private;
+ priv->dev = eth_dev;
err = mlx5_uar_init_secondary(eth_dev);
if (err)
goto error;
--
2.11.0
next reply other threads:[~2018-05-02 6:13 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-05-02 6:13 Yongseok Koh [this message]
2018-05-02 6:53 ` Nélio Laranjeiro
2018-05-02 7:12 ` Yongseok Koh
2018-05-02 23:10 ` [dpdk-dev] [PATCH v2] net/mlx5: change device reference for " Yongseok Koh
2018-05-06 6:25 ` Shahaf Shuler
2018-05-07 6:46 ` Yongseok Koh
2018-05-09 11:04 ` [dpdk-dev] [PATCH v3] " Yongseok Koh
2018-05-09 11:30 ` Shahaf Shuler
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