[dpdk-dev] [PATCH v5] net/tap: remote netdevice traffic capture

Pascal Mazon pascal.mazon at 6wind.com
Wed Mar 15 16:03:39 CET 2017

This patchset adds the special "remote" feature to the tap PMD, that
actually enables capturing traffic from another netdevice. This is
especially useful to get packets into the DPDK app, when the remote
netdevice has no DPDK support.

The "remote" feature requires flow API support as flow rules will be
configured on the remote netdevice for redirection, using the same

This series applies on top of:

  [PATCH 0/4] net/tap: support flow API

v2 changes:
  - rebase on top of updated "net/tap: support flow API"
  - fix implicit flow flush when closing the netdevices

v3 changes:
  - memset(0) for remote_iface in rte_pmd_tap_probe()
  - use snprintf instead of strncpy to correctly handle terminating \0

v4 changes:
  - rebase on top of updated "net/tap: support flow API"
  - use only a single patch now as MTU, MAC and flags can be easily managed
    with tap_ioctl()

v5 changes:
  - rebase after adrien's patches on Tx poll and Rx signaling

Pascal Mazon (1):
  net/tap: add remote netdevice traffic capture

 doc/guides/nics/tap.rst       |  17 ++
 drivers/net/tap/rte_eth_tap.c | 101 +++++++++-
 drivers/net/tap/rte_eth_tap.h |   4 +
 drivers/net/tap/tap_flow.c    | 451 ++++++++++++++++++++++++++++++++++++++++--
 drivers/net/tap/tap_flow.h    |  24 +++
 5 files changed, 575 insertions(+), 22 deletions(-)


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