From: Maxime Coquelin <maxime.coquelin@redhat.com>
To: "Wang, Xiao W" <xiao.w.wang@intel.com>, "dev@dpdk.org" <dev@dpdk.org>
Cc: "Wang, Zhihong" <zhihong.wang@intel.com>,
"yliu@fridaylinux.org" <yliu@fridaylinux.org>,
"Liang, Cunming" <cunming.liang@intel.com>,
"Xu, Rosen" <rosen.xu@intel.com>,
"Chen, Junjie J" <junjie.j.chen@intel.com>,
"Daly, Dan" <dan.daly@intel.com>
Subject: Re: [dpdk-dev] [PATCH 0/3] add ifcvf driver
Date: Wed, 21 Mar 2018 21:47:31 +0100 [thread overview]
Message-ID: <8f3f90fe-6166-c750-2dcd-f4d1878b465c@redhat.com> (raw)
In-Reply-To: <B7F2E978279D1D49A3034B7786DACF406F8525F6@SHSMSX101.ccr.corp.intel.com>
Hi Xiao,
On 03/15/2018 05:49 PM, Wang, Xiao W wrote:
> Hi Maxime,
>
>> -----Original Message-----
>> From: Maxime Coquelin [mailto:maxime.coquelin@redhat.com]
>> Sent: Sunday, March 11, 2018 2:24 AM
>> To: Wang, Xiao W <xiao.w.wang@intel.com>; dev@dpdk.org
>> Cc: Wang, Zhihong <zhihong.wang@intel.com>; yliu@fridaylinux.org; Liang,
>> Cunming <cunming.liang@intel.com>; Xu, Rosen <rosen.xu@intel.com>; Chen,
>> Junjie J <junjie.j.chen@intel.com>; Daly, Dan <dan.daly@intel.com>
>> Subject: Re: [PATCH 0/3] add ifcvf driver
>>
>> Hi Xiao,
>>
>> On 03/10/2018 12:08 AM, Xiao Wang wrote:
>>> This patch set has dependency on
>> http://dpdk.org/dev/patchwork/patch/35635/
>>> (vhost: support selective datapath);
>>>
>>> ifc VF is compatible with virtio vring operations, this driver implements
>>> vDPA driver ops which configures ifc VF to be a vhost data path accelerator.
>>>
>>> ifcvf driver uses vdev as a control domain to manage ifc VFs that belong
>>> to it. It registers vDPA device ops to vhost lib to enable these VFs to be
>>> used as vhost data path accelerator.
>>>
>>> Live migration feature is supported by ifc VF and this driver enables
>>> it based on vhost lib.
>>>
>>> vDPA needs to create different containers for different devices, thus this
>>> patch set adds APIs in eal/vfio to support multiple container.
>> Thanks for this! That will avoind having to duplicate these functions
>> for every new offload driver.
>>
>>
>>>
>>> Junjie Chen (1):
>>> eal/vfio: add support for multiple container
>>>
>>> Xiao Wang (2):
>>> bus/pci: expose sysfs parsing API
>>
>> Still, I'm not convinced the offload device should be a virtual device.
>> It is a real PCI device, why not having a new device type for offload
>> devices, and let the device to be probed automatically by the existing
>> device model?
>
> IFC VFs are generated from SRIOV, with the PF driven by kernel driver.
> In DPDK we need to have something to represent PF, to register itself as
> a vDPA engine, so a virtual device is used for this purpose.
I went through the code, and something is not clear to me.
Why do we need to have a representation of the PF in DPDK?
Why cannot we just bind at VF level?
> The VFs are used for vhost net offload, and we could implement exception traffic
> Rx/Tx function on the VFs in future via port-representor mechanism. So this patch
> keeps the device type as net.
>
> BRs,
> Xiao
>
>>
>> Thanks,
>> Maxime
>>
>>
>>> net/ifcvf: add ifcvf driver
>>>
>>> config/common_base | 6 +
>>> config/common_linuxapp | 1 +
>>> drivers/bus/pci/linux/pci.c | 9 +-
>>> drivers/bus/pci/linux/pci_init.h | 8 +
>>> drivers/bus/pci/rte_bus_pci_version.map | 8 +
>>> drivers/net/Makefile | 1 +
>>> drivers/net/ifcvf/Makefile | 40 +
>>> drivers/net/ifcvf/base/ifcvf.c | 329 ++++++++
>>> drivers/net/ifcvf/base/ifcvf.h | 156 ++++
>>> drivers/net/ifcvf/base/ifcvf_osdep.h | 52 ++
>>> drivers/net/ifcvf/ifcvf_ethdev.c | 1241
>> ++++++++++++++++++++++++++++++
>>> drivers/net/ifcvf/rte_ifcvf_version.map | 4 +
>>> lib/librte_eal/bsdapp/eal/eal.c | 51 +-
>>> lib/librte_eal/common/include/rte_vfio.h | 117 ++-
>>> lib/librte_eal/linuxapp/eal/eal_vfio.c | 553 ++++++++++---
>>> lib/librte_eal/linuxapp/eal/eal_vfio.h | 2 +
>>> lib/librte_eal/rte_eal_version.map | 7 +
>>> mk/rte.app.mk | 1 +
>>> 18 files changed, 2480 insertions(+), 106 deletions(-)
>>> create mode 100644 drivers/net/ifcvf/Makefile
>>> create mode 100644 drivers/net/ifcvf/base/ifcvf.c
>>> create mode 100644 drivers/net/ifcvf/base/ifcvf.h
>>> create mode 100644 drivers/net/ifcvf/base/ifcvf_osdep.h
>>> create mode 100644 drivers/net/ifcvf/ifcvf_ethdev.c
>>> create mode 100644 drivers/net/ifcvf/rte_ifcvf_version.map
>>>
next prev parent reply other threads:[~2018-03-21 20:47 UTC|newest]
Thread overview: 98+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-03-09 23:08 Xiao Wang
2018-03-09 23:08 ` [dpdk-dev] [PATCH 1/3] eal/vfio: add support for multiple container Xiao Wang
2018-03-14 12:08 ` Burakov, Anatoly
2018-03-15 16:49 ` Wang, Xiao W
2018-03-09 23:08 ` [dpdk-dev] [PATCH 2/3] bus/pci: expose sysfs parsing API Xiao Wang
2018-03-14 11:19 ` Burakov, Anatoly
2018-03-14 13:30 ` Gaëtan Rivet
2018-03-15 16:49 ` Wang, Xiao W
2018-03-15 17:19 ` Gaëtan Rivet
2018-03-19 1:31 ` Wang, Xiao W
2018-03-21 13:21 ` [dpdk-dev] [PATCH v2 0/3] add ifcvf driver Xiao Wang
2018-03-21 13:21 ` [dpdk-dev] [PATCH v2 1/3] eal/vfio: add support for multiple container Xiao Wang
2018-03-21 20:32 ` Thomas Monjalon
2018-03-21 21:37 ` Gaëtan Rivet
2018-03-22 3:00 ` Wang, Xiao W
2018-03-21 13:21 ` [dpdk-dev] [PATCH v2 2/3] bus/pci: expose sysfs parsing API Xiao Wang
2018-03-21 20:44 ` Thomas Monjalon
2018-03-22 2:46 ` Wang, Xiao W
2018-03-21 13:21 ` [dpdk-dev] [PATCH v2 3/3] net/ifcvf: add ifcvf driver Xiao Wang
2018-03-21 20:52 ` Thomas Monjalon
2018-03-23 10:39 ` Wang, Xiao W
2018-03-21 20:57 ` Maxime Coquelin
2018-03-23 10:37 ` Wang, Xiao W
2018-03-22 8:51 ` Ferruh Yigit
2018-03-22 17:23 ` Wang, Xiao W
2018-03-31 2:29 ` [dpdk-dev] [PATCH v3 0/3] add ifcvf vdpa driver Xiao Wang
2018-03-31 2:29 ` [dpdk-dev] [PATCH v3 1/4] eal/vfio: add support for multiple container Xiao Wang
2018-03-31 11:06 ` Maxime Coquelin
2018-03-31 2:29 ` [dpdk-dev] [PATCH v3 2/4] net/virtio: skip device probe in vdpa mode Xiao Wang
2018-03-31 11:13 ` Maxime Coquelin
2018-03-31 13:16 ` Thomas Monjalon
2018-04-02 4:08 ` Wang, Xiao W
2018-03-31 2:29 ` [dpdk-dev] [PATCH v3 3/4] net/ifcvf: add ifcvf vdpa driver Xiao Wang
2018-03-31 11:26 ` Maxime Coquelin
2018-04-03 9:38 ` Wang, Xiao W
2018-04-04 14:40 ` [dpdk-dev] [PATCH v4 0/4] " Xiao Wang
2018-04-04 14:40 ` [dpdk-dev] [PATCH v4 1/4] eal/vfio: add multiple container support Xiao Wang
2018-04-05 18:06 ` [dpdk-dev] [PATCH v5 0/4] add ifcvf vdpa driver Xiao Wang
2018-04-05 18:06 ` [dpdk-dev] [PATCH v5 1/4] eal/vfio: add multiple container support Xiao Wang
2018-04-05 18:06 ` [dpdk-dev] [PATCH v5 2/4] net/virtio: skip device probe in vdpa mode Xiao Wang
2018-04-11 18:58 ` Ferruh Yigit
2018-04-05 18:07 ` [dpdk-dev] [PATCH v5 3/4] net/ifcvf: add ifcvf vdpa driver Xiao Wang
2018-04-11 18:58 ` Ferruh Yigit
2018-04-12 7:19 ` [dpdk-dev] [PATCH v6 0/4] " Xiao Wang
2018-04-12 7:19 ` [dpdk-dev] [PATCH v6 1/4] eal/vfio: add multiple container support Xiao Wang
2018-04-12 14:03 ` Burakov, Anatoly
2018-04-12 16:07 ` Wang, Xiao W
2018-04-12 16:24 ` Burakov, Anatoly
2018-04-13 9:18 ` Wang, Xiao W
2018-04-15 15:33 ` [dpdk-dev] [PATCH v7 0/5] add ifcvf vdpa driver Xiao Wang
2018-04-15 15:33 ` [dpdk-dev] [PATCH v7 1/5] vfio: extend data structure for multi container Xiao Wang
2018-04-16 10:02 ` Burakov, Anatoly
2018-04-16 12:22 ` Wang, Xiao W
2018-04-16 15:34 ` [dpdk-dev] [PATCH v8 0/5] add ifcvf vdpa driver Xiao Wang
2018-04-16 15:34 ` [dpdk-dev] [PATCH v8 1/5] vfio: extend data structure for multi container Xiao Wang
2018-04-16 15:56 ` Burakov, Anatoly
2018-04-16 15:34 ` [dpdk-dev] [PATCH v8 2/5] vfio: add multi container support Xiao Wang
2018-04-16 15:58 ` Burakov, Anatoly
2018-04-17 7:06 ` [dpdk-dev] [PATCH v9 0/5] add ifcvf vdpa driver Xiao Wang
2018-04-17 7:06 ` [dpdk-dev] [PATCH v9 1/5] vfio: extend data structure for multi container Xiao Wang
2018-04-17 7:06 ` [dpdk-dev] [PATCH v9 2/5] vfio: add multi container support Xiao Wang
2018-04-17 7:06 ` [dpdk-dev] [PATCH v9 3/5] net/virtio: skip device probe in vdpa mode Xiao Wang
2018-04-17 7:06 ` [dpdk-dev] [PATCH v9 4/5] net/ifcvf: add ifcvf vdpa driver Xiao Wang
2018-04-17 7:06 ` [dpdk-dev] [PATCH v9 5/5] doc: add ifcvf driver document and release note Xiao Wang
2018-04-17 11:13 ` [dpdk-dev] [PATCH v9 0/5] add ifcvf vdpa driver Ferruh Yigit
2018-04-16 15:34 ` [dpdk-dev] [PATCH v8 3/5] net/virtio: skip device probe in vdpa mode Xiao Wang
2018-04-16 15:34 ` [dpdk-dev] [PATCH v8 4/5] net/ifcvf: add ifcvf vdpa driver Xiao Wang
2018-04-16 15:34 ` [dpdk-dev] [PATCH v8 5/5] doc: add ifcvf driver document and release note Xiao Wang
2018-04-16 16:36 ` [dpdk-dev] [PATCH v8 0/5] add ifcvf vdpa driver Ferruh Yigit
2018-04-16 18:07 ` Thomas Monjalon
2018-04-17 5:36 ` Wang, Xiao W
2018-04-15 15:33 ` [dpdk-dev] [PATCH v7 2/5] vfio: add multi container support Xiao Wang
2018-04-16 10:03 ` Burakov, Anatoly
2018-04-16 12:44 ` Wang, Xiao W
2018-04-15 15:33 ` [dpdk-dev] [PATCH v7 3/5] net/virtio: skip device probe in vdpa mode Xiao Wang
2018-04-15 15:33 ` [dpdk-dev] [PATCH v7 4/5] net/ifcvf: add ifcvf vdpa driver Xiao Wang
2018-04-15 15:33 ` [dpdk-dev] [PATCH v7 5/5] doc: add ifcvf driver document and release note Xiao Wang
2018-04-12 7:19 ` [dpdk-dev] [PATCH v6 2/4] net/virtio: skip device probe in vdpa mode Xiao Wang
2018-04-12 7:19 ` [dpdk-dev] [PATCH v6 3/4] net/ifcvf: add ifcvf vdpa driver Xiao Wang
2018-04-12 7:19 ` [dpdk-dev] [PATCH v6 4/4] doc: add ifcvf driver document and release note Xiao Wang
2018-04-05 18:07 ` [dpdk-dev] [PATCH v5 " Xiao Wang
2018-04-11 18:59 ` [dpdk-dev] [PATCH v5 0/4] add ifcvf vdpa driver Ferruh Yigit
2018-04-12 5:47 ` Wang, Xiao W
2018-04-04 14:40 ` [dpdk-dev] [PATCH v4 2/4] net/virtio: skip device probe in vdpa mode Xiao Wang
2018-04-04 14:40 ` [dpdk-dev] [PATCH v4 3/4] net/ifcvf: add ifcvf vdpa driver Xiao Wang
2018-04-04 14:40 ` [dpdk-dev] [PATCH v4 4/4] doc: add ifcvf driver document and release note Xiao Wang
2018-03-31 2:29 ` [dpdk-dev] [PATCH v3 4/4] net/ifcvf: add " Xiao Wang
2018-03-31 11:28 ` Maxime Coquelin
2018-03-09 23:08 ` [dpdk-dev] [PATCH 3/3] net/ifcvf: add ifcvf driver Xiao Wang
2018-03-10 18:23 ` [dpdk-dev] [PATCH 0/3] " Maxime Coquelin
2018-03-15 16:49 ` Wang, Xiao W
2018-03-21 20:47 ` Maxime Coquelin [this message]
2018-03-23 10:27 ` Wang, Xiao W
2018-03-25 9:51 ` Maxime Coquelin
2018-03-26 9:05 ` Wang, Xiao W
2018-03-26 13:29 ` Maxime Coquelin
2018-03-27 4:40 ` Wang, Xiao W
2018-03-27 5:09 ` Maxime Coquelin
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