Since some PMDs have multi-path for Rx/Tx, FD.io VPP will tell you in
the Debug CLI what rx/tx function is being used:
#show hardware-interface
tx burst function: ice_xmit_pkts
rx burst function: ice_recv_scattered_pkts
But if the tx/rx is static, then 'dladdr' will return nil:
tx burst function: (nil) │······················
rx burst function: (nil) │······················
For making things consistent and gracefull, we introduce an new string
field to describe the Rx/Tx burst information. This is vendor-neutral,
it is used to identify the Rx/Tx burst selection if the PMD has more
than one.
If a PMD supports this, then rxqinfo/txqinfo->burst_info[0] != '\0'.
This is for net/ice PMD result.
testpmd> show rxq info 0 0
********************* Infos for port 0 , RX queue 0 *********************
Mempool: mbuf_pool_socket_0
RX prefetch threshold: 0
RX host threshold: 0
RX writeback threshold: 0
RX free threshold: 32
RX drop packets: off
RX deferred start: off
RX scattered packets: on
Number of RXDs: 1024
Burst description: AVX2 Vector Scattered Rx <------------ NEW
testpmd> show txq info 0 0
********************* Infos for port 0 , TX queue 0 *********************
TX prefetch threshold: 32
TX host threshold: 0
TX writeback threshold: 0
TX RS threshold: 32
TX free threshold: 32
TX deferred start: off
Number of TXDs: 1024
Burst description: AVX2 Vector Tx <------------ NEW
Haiyue Wang (3):
ethdev: add the Rx/Tx burst description field in queue information
testpmd: show the Rx/Tx burst description field in queue
net/ice: support the Rx/Tx burst description field in queue
information
app/test-pmd/config.c | 2 ++
drivers/net/ice/ice_rxtx.c | 49 ++++++++++++++++++++++++++++++++++++++++++
lib/librte_ethdev/rte_ethdev.h | 7 ++++++
3 files changed, 58 insertions(+)
--
2.7.4
