[dpdk-dev] [PATCH v9 0/2] Add VHOST PMD
Tetsuya Mukawa
mukawa at igel.co.jp
Wed Feb 24 06:09:59 CET 2016
On 2016/02/24 11:45, Qiu, Michael wrote:
> Hi, Tetsuya
>
> When I applied your v6 patch, I could reach 9.5Mpps with 64B packet.
>
> But when apply v9 only 8.4 Mpps, could you figure out why has
> performance drop?
Hi Michael,
Thanks for checking it.
I tried to re-produce it, but I don't see the drop on my environment.
(My cpu is Xeon E5-2697-v2, and the performances of v6 and v9 patch are
almost 5.9Mpps)
Did you use totally same code except for vhost PMD?
Thanks,
Tetsuya
> Thanks,
> Michael
> On 2/9/2016 5:38 PM, Tetsuya Mukawa wrote:
>> The patch introduces a new PMD. This PMD is implemented as thin wrapper
>> of librte_vhost.
>>
>>
>> PATCH v9 changes:
>> - Fix a null pointer access issue implemented in v8 patch.
>>
>> PATCH v8 changes:
>> - Manage ether devices list instead of internal structures list.
>> - Remove needless NULL checking.
>> - Replace "pthread_exit" to "return NULL".
>> - Replace rte_panic to RTE_LOG, also add error handling.
>> - Remove duplicated lines.
>> - Remove needless casting.
>> - Follow coding style.
>> - Remove needless parenthesis.
>>
>> PATCH v7 changes:
>> - Remove needless parenthesis.
>> - Add release note.
>> - Remove needless line wraps.
>> - Add null pointer check in vring_state_changed().
>> - Free queue memory in eth_queue_release().
>> - Fix wrong variable name.
>> - Fix error handling code of eth_dev_vhost_create() and
>> rte_pmd_vhost_devuninit().
>> - Remove needless null checking from rte_pmd_vhost_devinit/devuninit().
>> - Use port id to create mac address.
>> - Add doxygen style comments in "rte_eth_vhost.h".
>> - Fix wrong comment in "mk/rte.app.mk".
>>
>> PATCH v6 changes:
>> - Remove rte_vhost_driver_pmd_callback_registe().
>> - Support link status interrupt.
>> - Support queue state changed interrupt.
>> - Add rte_eth_vhost_get_queue_event().
>> - Support numa node detection when new device is connected.
>>
>> PATCH v5 changes:
>> - Rebase on latest master.
>> - Fix RX/TX routine to count RX/TX bytes.
>> - Fix RX/TX routine not to count as error packets if enqueue/dequeue
>> cannot send all packets.
>> - Fix if-condition checking for multiqueues.
>> - Add "static" to pthread variable.
>> - Fix format.
>> - Change default behavior not to receive queueing event from driver.
>> - Split the patch to separate rte_eth_vhost_portid2vdev().
>>
>> PATCH v4 changes:
>> - Rebase on latest DPDK tree.
>> - Fix cording style.
>> - Fix code not to invoke multiple messaging handling threads.
>> - Fix code to handle vdev parameters correctly.
>> - Remove needless cast.
>> - Remove needless if-condition before rt_free().
>>
>> PATCH v3 changes:
>> - Rebase on latest matser
>> - Specify correct queue_id in RX/TX function.
>>
>> PATCH v2 changes:
>> - Remove a below patch that fixes vhost library.
>> The patch was applied as a separate patch.
>> - vhost: fix crash with multiqueue enabled
>> - Fix typos.
>> (Thanks to Thomas, Monjalon)
>> - Rebase on latest tree with above bernard's patches.
>>
>> PATCH v1 changes:
>> - Support vhost multiple queues.
>> - Rebase on "remove pci driver from vdevs".
>> - Optimize RX/TX functions.
>> - Fix resource leaks.
>> - Fix compile issue.
>> - Add patch to fix vhost library.
>>
>> RFC PATCH v3 changes:
>> - Optimize performance.
>> In RX/TX functions, change code to access only per core data.
>> - Add below API to allow user to use vhost library APIs for a port managed
>> by vhost PMD. There are a few limitations. See "rte_eth_vhost.h".
>> - rte_eth_vhost_portid2vdev()
>> To support this functionality, vhost library is also changed.
>> Anyway, if users doesn't use vhost PMD, can fully use vhost library APIs.
>> - Add code to support vhost multiple queues.
>> Actually, multiple queues functionality is not enabled so far.
>>
>> RFC PATCH v2 changes:
>> - Fix issues reported by checkpatch.pl
>> (Thanks to Stephen Hemminger)
>>
>>
>> Tetsuya Mukawa (2):
>> ethdev: Add a new event type to notify a queue state changed event
>> vhost: Add VHOST PMD
>>
>> MAINTAINERS | 4 +
>> config/common_linuxapp | 6 +
>> doc/guides/nics/index.rst | 1 +
>> doc/guides/rel_notes/release_2_3.rst | 4 +
>> drivers/net/Makefile | 4 +
>> drivers/net/vhost/Makefile | 62 ++
>> drivers/net/vhost/rte_eth_vhost.c | 911 ++++++++++++++++++++++++++++
>> drivers/net/vhost/rte_eth_vhost.h | 109 ++++
>> drivers/net/vhost/rte_pmd_vhost_version.map | 11 +
>> lib/librte_ether/rte_ethdev.h | 2 +
>> mk/rte.app.mk | 6 +
>> 11 files changed, 1120 insertions(+)
>> create mode 100644 drivers/net/vhost/Makefile
>> create mode 100644 drivers/net/vhost/rte_eth_vhost.c
>> create mode 100644 drivers/net/vhost/rte_eth_vhost.h
>> create mode 100644 drivers/net/vhost/rte_pmd_vhost_version.map
>>
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