DPDK patches and discussions
 help / color / Atom feed
* [dpdk-dev] [RFC v1 0/3] show the Rx/Tx burst description field
@ 2019-08-12 14:15 Haiyue Wang
  2019-08-12 14:15 ` [dpdk-dev] [RFC v1 1/3] ethdev: add the Rx/Tx burst description field in queue information Haiyue Wang
                   ` (3 more replies)
  0 siblings, 4 replies; 13+ messages in thread
From: Haiyue Wang @ 2019-08-12 14:15 UTC (permalink / raw)
  To: dev; +Cc: Haiyue Wang

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


^ permalink raw reply	[flat|nested] 13+ messages in thread

end of thread, back to index

Thread overview: 13+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2019-08-12 14:15 [dpdk-dev] [RFC v1 0/3] show the Rx/Tx burst description field Haiyue Wang
2019-08-12 14:15 ` [dpdk-dev] [RFC v1 1/3] ethdev: add the Rx/Tx burst description field in queue information Haiyue Wang
2019-08-12 15:37   ` Stephen Hemminger
2019-08-12 14:15 ` [dpdk-dev] [RFC v1 2/3] testpmd: show the Rx/Tx burst description field in queue Haiyue Wang
2019-08-12 14:15 ` [dpdk-dev] [RFC v1 3/3] net/ice: support the Rx/Tx burst description field in queue information Haiyue Wang
2019-08-12 14:27 ` [dpdk-dev] [RFC v1 0/3] show the Rx/Tx burst description field David Marchand
2019-08-12 15:38   ` Stephen Hemminger
2019-08-12 15:42     ` Wang, Haiyue
2019-08-12 15:54       ` Stephen Hemminger
2019-08-12 16:00         ` Wang, Haiyue
2019-08-12 17:28           ` Stephen Hemminger
2019-08-12 17:36             ` Wang, Haiyue
2019-08-12 15:39   ` Wang, Haiyue

DPDK patches and discussions

Archives are clonable:
	git clone --mirror http://inbox.dpdk.org/dev/0 dev/git/0.git

	# If you have public-inbox 1.1+ installed, you may
	# initialize and index your mirror using the following commands:
	public-inbox-init -V2 dev dev/ http://inbox.dpdk.org/dev \
		dev@dpdk.org
	public-inbox-index dev


Newsgroup available over NNTP:
	nntp://inbox.dpdk.org/inbox.dpdk.dev


AGPL code for this site: git clone https://public-inbox.org/ public-inbox