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From: Maxime Coquelin <maxime.coquelin@redhat.com>
To: dev@dpdk.org, chenbo.xia@intel.com, olivier.matz@6wind.com,
	amorenoz@redhat.com, david.marchand@redhat.com
Cc: Maxime Coquelin <maxime.coquelin@redhat.com>
Subject: [dpdk-dev] [PATCH 00/40] net/virtio: Virtio PMD rework
Date: Sun, 20 Dec 2020 22:13:25 +0100
Message-ID: <20201220211405.313012-1-maxime.coquelin@redhat.com> (raw)

This series significantly rework Virtio PMD to improve
the Virtio-user PMD and its backends integration.

First part of the series (first 21 patches) removes the
dependency of Virtio-user ethdev on Virtio PCI, by
creating generic files, adding per-bus meta data, ...

Main (if not single) functionnal change of this first
part is to remove the hack for Virtio-user to work in
IOVA as PA mode, this hack being very fragile. Now, the
user has to manually pass --iova-mode=va in EAL
parameters, otherwise vdev probe will fail. In v21.11,
when ABI/API can be changed, I will add vdev driver
flags so that the Virtio-user PMD can request IOVA as VA
mode to be used.

Second part of the series reworks Virtio-user internal,
by reworking the requests handling so that vDPA and Kernel
backends no more hack into being Vhost-user backend. It
implies implementing new ops for all the request types.
Also, all the backend specific actions are moved from the
virtio_user_dev.c and virtio_user_ethdev.c to their
backend files.

Only functionnal change in this second part is making the
Vhost-user server mode blocking at init time, as long as
a client is not connected. The goal of this change is to
make the Vhost-user support much more robust, as without
blocking, the driver has to assume features that are going
to be supported by the client, which is very fragile and
error prone. As a side-effect, it also simplifies the
logic nin several place of the virtio-user PMD.

Plese note that I haven't tested the last 5 patches yet,
I will conduct more testing early next week.

Maxime Coquelin (40):
  bus/vdev: add helper to get vdev from eth dev
  net/virtio: Introduce Virtio bus type
  net/virtio: refactor virtio-user device
  net/virtio: introduce PCI device metadata
  net/virtio: move PCI device init in dedicated file
  net/virtio: move PCI specific dev init to PCI ethdev init
  net/virtio: move MSIX detection to PCI ethdev
  net/virtio: force IOVA as VA mode for Virtio-user
  net/virtio: store PCI type in Virtio device metadata
  net/virtio: add callback for device closing
  net/virtio: validate features at bus level
  net/virtio: remove bus type enum
  net/virtio: move PCI-specific fields to PCI device
  net/virtio: pack virtio HW struct
  net/virtio: move legacy IO to Virtio PCI
  net/virtio: introduce generic virtio header
  net/virtio: move features definition to generic header
  net/virtio: move virtqueue defines in generic header
  net/virtio: move config definitions to generic header
  net/virtio: make interrupt handling more generic
  net/virtio: move vring alignment to generic header
  net/virtio: remove last PCI refs in non-PCI code
  net/virtio: make Vhost-user req sender consistent
  net/virtio: add Virtio-user ops to set owner
  net/virtio: add Virtio-user features ops
  net/virtio: add Virtio-user protocol features ops
  net/virtio: add Virtio-user memory tables ops
  net/virtio: add Virtio-user vring setting ops
  net/virtio: add Virtio-user vring file ops
  net/virtio: add Virtio-user vring address ops
  net/virtio: add Virtio-user status ops
  net/virtio: remove useless request ops
  net/virtio: improve Virtio-user errors handling
  net/virtio: move Vhost-user reqs to Vhost-user backend
  net/virtio: make server mode blocking
  net/virtio: move protocol features to Vhost-user
  net/virtio: introduce backend data
  net/virtio: move Vhost-user specifics to its backend
  net/virtio: move Vhost-kernel data to its backend
  net/virtio: move Vhost-vDPA data to its backend

 drivers/bus/vdev/rte_bus_vdev.h               |   2 +
 drivers/net/virtio/meson.build                |   6 +-
 drivers/net/virtio/virtio.c                   |  71 ++
 drivers/net/virtio/virtio.h                   | 247 ++++++
 drivers/net/virtio/virtio_ethdev.c            | 441 +++------
 drivers/net/virtio/virtio_ethdev.h            |   5 +-
 drivers/net/virtio/virtio_pci.c               | 399 +++++----
 drivers/net/virtio/virtio_pci.h               | 286 +-----
 drivers/net/virtio/virtio_pci_ethdev.c        | 225 +++++
 drivers/net/virtio/virtio_ring.h              |   2 +-
 drivers/net/virtio/virtio_rxtx.c              |  90 +-
 drivers/net/virtio/virtio_rxtx_packed_avx.c   |  18 +-
 drivers/net/virtio/virtio_rxtx_simple.h       |   3 +-
 drivers/net/virtio/virtio_user/vhost.h        |  80 +-
 drivers/net/virtio/virtio_user/vhost_kernel.c | 435 ++++++---
 .../net/virtio/virtio_user/vhost_kernel_tap.c |  25 +-
 .../net/virtio/virtio_user/vhost_kernel_tap.h |   1 +
 drivers/net/virtio/virtio_user/vhost_user.c   | 835 ++++++++++++++----
 drivers/net/virtio/virtio_user/vhost_vdpa.c   | 257 ++++--
 .../net/virtio/virtio_user/virtio_user_dev.c  | 490 +++++-----
 .../net/virtio/virtio_user/virtio_user_dev.h  |  22 +-
 drivers/net/virtio/virtio_user_ethdev.c       | 304 ++-----
 drivers/net/virtio/virtqueue.c                |   6 +-
 drivers/net/virtio/virtqueue.h                |  41 +-
 24 files changed, 2481 insertions(+), 1810 deletions(-)
 create mode 100644 drivers/net/virtio/virtio.c
 create mode 100644 drivers/net/virtio/virtio.h
 create mode 100644 drivers/net/virtio/virtio_pci_ethdev.c

-- 
2.29.2


             reply	other threads:[~2020-12-20 21:14 UTC|newest]

Thread overview: 149+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-12-20 21:13 Maxime Coquelin [this message]
2020-12-20 21:13 ` [dpdk-dev] [PATCH 01/40] bus/vdev: add helper to get vdev from eth dev Maxime Coquelin
2020-12-30  3:02   ` Xia, Chenbo
2021-01-05 21:15   ` David Marchand
2020-12-20 21:13 ` [dpdk-dev] [PATCH 02/40] net/virtio: Introduce Virtio bus type Maxime Coquelin
2020-12-30  3:02   ` Xia, Chenbo
2021-01-05 21:15   ` David Marchand
2021-01-14  9:24     ` Maxime Coquelin
2021-01-14 10:54       ` Maxime Coquelin
2021-01-14 11:55         ` David Marchand
2020-12-20 21:13 ` [dpdk-dev] [PATCH 03/40] net/virtio: refactor virtio-user device Maxime Coquelin
2020-12-30  3:02   ` Xia, Chenbo
2021-01-05 21:16   ` David Marchand
2021-01-14  9:26     ` Maxime Coquelin
2020-12-20 21:13 ` [dpdk-dev] [PATCH 04/40] net/virtio: introduce PCI device metadata Maxime Coquelin
2020-12-30  3:02   ` Xia, Chenbo
2021-01-05 21:16   ` David Marchand
2021-01-14 11:05     ` Maxime Coquelin
2021-01-14 14:40       ` David Marchand
2021-01-14 14:44         ` Maxime Coquelin
2020-12-20 21:13 ` [dpdk-dev] [PATCH 05/40] net/virtio: move PCI device init in dedicated file Maxime Coquelin
2020-12-30  3:02   ` Xia, Chenbo
2021-01-05 21:19   ` David Marchand
2021-01-14 16:04     ` Maxime Coquelin
2021-01-14 16:14       ` David Marchand
2020-12-20 21:13 ` [dpdk-dev] [PATCH 06/40] net/virtio: move PCI specific dev init to PCI ethdev init Maxime Coquelin
2020-12-30  3:05   ` Xia, Chenbo
2021-01-06  8:58   ` David Marchand
2020-12-20 21:13 ` [dpdk-dev] [PATCH 07/40] net/virtio: move MSIX detection to PCI ethdev Maxime Coquelin
2020-12-30  3:05   ` Xia, Chenbo
2021-01-06  8:22   ` David Marchand
2021-01-14 17:19     ` Maxime Coquelin
2020-12-20 21:13 ` [dpdk-dev] [PATCH 08/40] net/virtio: force IOVA as VA mode for Virtio-user Maxime Coquelin
2020-12-30  3:06   ` Xia, Chenbo
2021-01-06  9:06   ` David Marchand
2021-01-06  9:11     ` Thomas Monjalon
2021-01-06  9:22       ` Maxime Coquelin
2021-01-06 16:37       ` Kinsella, Ray
2021-01-06  9:14     ` Maxime Coquelin
2020-12-20 21:13 ` [dpdk-dev] [PATCH 09/40] net/virtio: store PCI type in Virtio device metadata Maxime Coquelin
2020-12-30  3:07   ` Xia, Chenbo
2021-01-06  9:14   ` David Marchand
2020-12-20 21:13 ` [dpdk-dev] [PATCH 10/40] net/virtio: add callback for device closing Maxime Coquelin
2020-12-30  3:07   ` Xia, Chenbo
2021-01-06  9:33   ` David Marchand
2020-12-20 21:13 ` [dpdk-dev] [PATCH 11/40] net/virtio: validate features at bus level Maxime Coquelin
2020-12-30  3:08   ` Xia, Chenbo
2021-01-06  9:33   ` David Marchand
2021-01-15  9:20     ` Maxime Coquelin
2020-12-20 21:13 ` [dpdk-dev] [PATCH 12/40] net/virtio: remove bus type enum Maxime Coquelin
2020-12-30  3:08   ` Xia, Chenbo
2021-01-06  9:33   ` David Marchand
2020-12-20 21:13 ` [dpdk-dev] [PATCH 13/40] net/virtio: move PCI-specific fields to PCI device Maxime Coquelin
2020-12-30  3:08   ` Xia, Chenbo
2021-01-06  9:58   ` David Marchand
2020-12-20 21:13 ` [dpdk-dev] [PATCH 14/40] net/virtio: pack virtio HW struct Maxime Coquelin
2020-12-30  3:09   ` Xia, Chenbo
2021-01-06  9:58   ` David Marchand
2021-01-15  9:35     ` Maxime Coquelin
2020-12-20 21:13 ` [dpdk-dev] [PATCH 15/40] net/virtio: move legacy IO to Virtio PCI Maxime Coquelin
2020-12-30  3:09   ` Xia, Chenbo
2021-01-06 10:09   ` David Marchand
2020-12-20 21:13 ` [dpdk-dev] [PATCH 16/40] net/virtio: introduce generic virtio header Maxime Coquelin
2020-12-30  3:09   ` Xia, Chenbo
2021-01-06 10:08   ` David Marchand
2021-01-15  9:39     ` Maxime Coquelin
2020-12-20 21:13 ` [dpdk-dev] [PATCH 17/40] net/virtio: move features definition to generic header Maxime Coquelin
2020-12-30  3:14   ` Xia, Chenbo
2021-01-14  8:40     ` Maxime Coquelin
2020-12-20 21:13 ` [dpdk-dev] [PATCH 18/40] net/virtio: move virtqueue defines in " Maxime Coquelin
2020-12-30  3:14   ` Xia, Chenbo
2021-01-06 15:53   ` David Marchand
2021-01-15 10:55     ` Maxime Coquelin
2020-12-20 21:13 ` [dpdk-dev] [PATCH 19/40] net/virtio: move config definitions to " Maxime Coquelin
2020-12-30  3:15   ` Xia, Chenbo
2021-01-06 16:01   ` David Marchand
2021-01-15 11:01     ` Maxime Coquelin
2020-12-20 21:13 ` [dpdk-dev] [PATCH 20/40] net/virtio: make interrupt handling more generic Maxime Coquelin
2020-12-30  3:17   ` Xia, Chenbo
2021-01-14  8:43     ` Maxime Coquelin
2021-01-06 16:07   ` David Marchand
2020-12-20 21:13 ` [dpdk-dev] [PATCH 21/40] net/virtio: move vring alignment to generic header Maxime Coquelin
2020-12-30  3:18   ` Xia, Chenbo
2021-01-06 16:13   ` David Marchand
2020-12-20 21:13 ` [dpdk-dev] [PATCH 22/40] net/virtio: remove last PCI refs in non-PCI code Maxime Coquelin
2020-12-30  3:25   ` Xia, Chenbo
2021-01-14  8:46     ` Maxime Coquelin
2021-01-06 16:18   ` David Marchand
2021-01-15 11:10     ` Maxime Coquelin
2020-12-20 21:13 ` [dpdk-dev] [PATCH 23/40] net/virtio: make Vhost-user req sender consistent Maxime Coquelin
2021-01-06 11:50   ` Xia, Chenbo
2021-01-15  9:47     ` Maxime Coquelin
2020-12-20 21:13 ` [dpdk-dev] [PATCH 24/40] net/virtio: add Virtio-user ops to set owner Maxime Coquelin
2021-01-06 11:50   ` Xia, Chenbo
2020-12-20 21:13 ` [dpdk-dev] [PATCH 25/40] net/virtio: add Virtio-user features ops Maxime Coquelin
2021-01-06 11:54   ` Xia, Chenbo
2021-01-13 13:43     ` Adrian Moreno
2021-01-13 13:54       ` Maxime Coquelin
2021-01-15 14:19       ` Maxime Coquelin
2021-01-13 13:57   ` Adrian Moreno
2021-01-15 14:29     ` Maxime Coquelin
2020-12-20 21:13 ` [dpdk-dev] [PATCH 26/40] net/virtio: add Virtio-user protocol " Maxime Coquelin
2021-01-06 11:55   ` Xia, Chenbo
2020-12-20 21:13 ` [dpdk-dev] [PATCH 27/40] net/virtio: add Virtio-user memory tables ops Maxime Coquelin
2021-01-06 11:57   ` Xia, Chenbo
2021-01-15  9:57     ` Maxime Coquelin
2020-12-20 21:13 ` [dpdk-dev] [PATCH 28/40] net/virtio: add Virtio-user vring setting ops Maxime Coquelin
2021-01-05 21:24   ` David Marchand
2021-01-06 12:01   ` Xia, Chenbo
2021-01-15 10:12     ` Maxime Coquelin
2021-01-06 12:03   ` Xia, Chenbo
2021-01-15 10:15     ` Maxime Coquelin
2020-12-20 21:13 ` [dpdk-dev] [PATCH 29/40] net/virtio: add Virtio-user vring file ops Maxime Coquelin
2021-01-05 21:24   ` David Marchand
2021-01-06 12:04   ` Xia, Chenbo
2021-01-15 10:17     ` Maxime Coquelin
2020-12-20 21:13 ` [dpdk-dev] [PATCH 30/40] net/virtio: add Virtio-user vring address ops Maxime Coquelin
2021-01-06 12:06   ` Xia, Chenbo
2021-01-15 10:19     ` Maxime Coquelin
2020-12-20 21:13 ` [dpdk-dev] [PATCH 31/40] net/virtio: add Virtio-user status ops Maxime Coquelin
2021-01-06 12:09   ` Xia, Chenbo
2021-01-15 10:48     ` Maxime Coquelin
2020-12-20 21:13 ` [dpdk-dev] [PATCH 32/40] net/virtio: remove useless request ops Maxime Coquelin
2020-12-20 21:13 ` [dpdk-dev] [PATCH 33/40] net/virtio: improve Virtio-user errors handling Maxime Coquelin
2021-01-07  2:26   ` Xia, Chenbo
2021-01-15 11:09     ` Maxime Coquelin
2020-12-20 21:13 ` [dpdk-dev] [PATCH 34/40] net/virtio: move Vhost-user reqs to Vhost-user backend Maxime Coquelin
2020-12-20 21:14 ` [dpdk-dev] [PATCH 35/40] net/virtio: make server mode blocking Maxime Coquelin
2021-01-07  3:20   ` Xia, Chenbo
2021-01-15 11:13     ` Maxime Coquelin
2020-12-20 21:14 ` [dpdk-dev] [PATCH 36/40] net/virtio: move protocol features to Vhost-user Maxime Coquelin
2020-12-20 21:14 ` [dpdk-dev] [PATCH 37/40] net/virtio: introduce backend data Maxime Coquelin
2021-01-05 21:26   ` David Marchand
2021-01-13 17:18   ` Adrian Moreno
2021-01-15 16:49     ` Maxime Coquelin
2020-12-20 21:14 ` [dpdk-dev] [PATCH 38/40] net/virtio: move Vhost-user specifics to its backend Maxime Coquelin
2021-01-07  6:32   ` Xia, Chenbo
2021-01-15 12:03     ` Maxime Coquelin
2020-12-20 21:14 ` [dpdk-dev] [PATCH 39/40] net/virtio: move Vhost-kernel data " Maxime Coquelin
2021-01-07  6:42   ` Xia, Chenbo
2021-01-11  8:02   ` Xia, Chenbo
2021-01-15 11:54     ` Maxime Coquelin
2021-01-18 20:36     ` Maxime Coquelin
2020-12-20 21:14 ` [dpdk-dev] [PATCH 40/40] net/virtio: move Vhost-vDPA " Maxime Coquelin
2020-12-22 15:20   ` Maxime Coquelin
2021-01-07  6:50   ` Xia, Chenbo
2021-01-15 12:08     ` Maxime Coquelin
2021-01-11  8:05   ` Xia, Chenbo
2020-12-21 10:58 ` [dpdk-dev] [PATCH 00/40] net/virtio: Virtio PMD rework Maxime Coquelin

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