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authorXavier Simonart <xavier.simonart@intel.com>2020-04-20 23:25:22 +0200
committerXavier Simonart <xavier.simonart@intel.com>2020-05-29 23:28:44 +0200
commitfa869940dd9bb459ac599fe80c26c9d3e720fd31 (patch)
tree67aefe7f36fad283ab690d5d0feae1a547a59487 /VNFs/DPPD-PROX/prox_args.c
parent6f898f1c73d630bf6e5e75ba1b30d261c8301d2a (diff)
Add support for vdev tap devices
This commit adds support for the creation of tap devices. To create a tap device, and associate it with a DPDK port, add within the port section: vdev=<tap_name> local ipv4=<ip_assigned_to_port> <tap_name> will appear as a kernel network device, with an IP <ip_assigned_to_port> ARP packets received from the network on the DPDK interface will be forwarded to the kernel. 1st packet which needs to be generated to a new IP will cause an IP packet to be sent to the kernel (using socket sendto) forcing the kernel to send an ARP_REQUEST. In this commit, there is no notification from the kernel about ARP table changes. This is subject to further commits. Two config files, gen_tap.cfg and swap_tap.cfg have been created. They work one against each other. *** Note however that they do not work if running within the same host (with the port being connected back to back) *** This is due to the fact that the kernel would bypass the ports and use local interface... Change-Id: Iadeec0d99e3c693472ea44bdb9163a3bf97df2fa Signed-off-by: Xavier Simonart <xavier.simonart@intel.com>
Diffstat (limited to 'VNFs/DPPD-PROX/prox_args.c')
-rw-r--r--VNFs/DPPD-PROX/prox_args.c8
1 files changed, 7 insertions, 1 deletions
diff --git a/VNFs/DPPD-PROX/prox_args.c b/VNFs/DPPD-PROX/prox_args.c
index 5d33957c..f4b84890 100644
--- a/VNFs/DPPD-PROX/prox_args.c
+++ b/VNFs/DPPD-PROX/prox_args.c
@@ -1,5 +1,5 @@
/*
-// Copyright (c) 2010-2017 Intel Corporation
+// Copyright (c) 2010-2020 Intel Corporation
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
@@ -553,6 +553,12 @@ static int get_port_cfg(unsigned sindex, char *str, void *data)
}
cfg->lsc_val = val;
}
+ else if (STR_EQ(str, "local ipv4")) {
+ return parse_ip(&cfg->ip, pkey);
+ }
+ else if (STR_EQ(str, "vdev")) {
+ prox_strncpy(cfg->vdev, pkey, MAX_NAME_SIZE);
+ }
#if RTE_VERSION >= RTE_VERSION_NUM(18,8,0,1)
else if (STR_EQ(str, "disable tx offload")) {
uint32_t val;