[dpdk-dev] [PATCH] net/tap: fix the vdev data sharing for tun
Vipin Varghese
vipin.varghese at intel.com
Sat May 12 08:37:35 CEST 2018
Fixes: ee27edbe0c10 ("drivers/net: share vdev data to secondary process")
Enables TUN PMD sharing by attaching the port from the shared data.
Cc: zhihong.wang at intel.com
Cc: ferruh.yigit at intel.com
Signed-off-by: Vipin Varghese <vipin.varghese at intel.com>
---
---
drivers/net/tap/rte_eth_tap.c | 13 +++++++++++++
1 file changed, 13 insertions(+)
diff --git a/drivers/net/tap/rte_eth_tap.c b/drivers/net/tap/rte_eth_tap.c
index db397d6..ea6d899 100644
--- a/drivers/net/tap/rte_eth_tap.c
+++ b/drivers/net/tap/rte_eth_tap.c
@@ -1657,6 +1657,7 @@ rte_pmd_tun_probe(struct rte_vdev_device *dev)
struct rte_kvargs *kvlist = NULL;
char tun_name[RTE_ETH_NAME_MAX_LEN];
char remote_iface[RTE_ETH_NAME_MAX_LEN];
+ struct rte_eth_dev *eth_dev;
tap_type = 0;
strcpy(tuntap_name, "TUN");
@@ -1665,6 +1666,18 @@ rte_pmd_tun_probe(struct rte_vdev_device *dev)
params = rte_vdev_device_args(dev);
memset(remote_iface, 0, RTE_ETH_NAME_MAX_LEN);
+ if (rte_eal_process_type() == RTE_PROC_SECONDARY &&
+ strlen(params) == 0) {
+ eth_dev = rte_eth_dev_attach_secondary(name);
+ if (!eth_dev) {
+ TAP_LOG(ERR, "Failed to probe %s", name);
+ return -1;
+ }
+ /* TODO: request info from primary to set up Rx and Tx */
+ eth_dev->dev_ops = &ops;
+ return 0;
+ }
+
snprintf(tun_name, sizeof(tun_name), "%s%u",
DEFAULT_TUN_NAME, tun_unit++);
--
2.7.4
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