[dpdk-dev] [PATCH 0/2] add support for buffered tx to ethdev

[Tomasz Kulasek]

Many sample apps include internal buffering for single-packet-at-a-time
operation. Since this is such a common paradigm, this functionality is
better suited to being inside the core ethdev API.
The new APIs in the ethdev library are:
* rte_eth_tx_buffer - buffer up a single packet for future transmission
* rte_eth_tx_buffer_flush - flush any unsent buffered packets
* rte_eth_tx_buffer_set_err_callback - set up a callback to be called in
  case transmitting a buffered burst fails. By default, we just free the
  unsent packets.

As well as these, an additional reference callback is provided, which
frees the packets (as the default callback does), as well as updating a
user-provided counter, so that the number of dropped packets can be
tracked.

The internal buffering of packets for TX in sample apps is no longer
needed, so this patchset also replaces this code with calls to the new
rte_eth_tx_buffer* APIs in:

* l2fwd-jobstats
* l2fwd-keepalive
* l2fwd
* l3fwd-acl
* l3fwd-power
* link_status_interrupt
* client_server_mp
* l2fwd_fork
* packet_ordering
* qos_meter

Tomasz Kulasek (2):
  ethdev: add buffered tx api
  examples: sample apps rework to use buffered tx api

 config/common_bsdapp                               |    1 +
 config/common_linuxapp                             |    1 +
 examples/l2fwd-jobstats/main.c                     |   73 ++-----
 examples/l2fwd-keepalive/main.c                    |   79 ++------
 examples/l2fwd/main.c                              |   80 ++------
 examples/l3fwd-acl/main.c                          |   64 +-----
 examples/l3fwd-power/main.c                        |   63 +-----
 examples/link_status_interrupt/main.c              |   83 ++------
 .../client_server_mp/mp_client/client.c            |   77 +++----
 examples/multi_process/l2fwd_fork/main.c           |   81 ++------
 examples/packet_ordering/main.c                    |   62 +++---
 examples/qos_meter/main.c                          |   46 +----
 lib/librte_ether/rte_ethdev.c                      |   63 +++++-
 lib/librte_ether/rte_ethdev.h                      |  211 +++++++++++++++++++-
 lib/librte_ether/rte_ether_version.map             |    8 +
 15 files changed, 445 insertions(+), 547 deletions(-)

-- 
1.7.9.5