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From: Jeff Guo <jia.guo@intel.com>
To: stephen@networkplumber.org, bruce.richardson@intel.com,
	ferruh.yigit@intel.com, konstantin.ananyev@intel.com,
	gaetan.rivet@6wind.com, jingjing.wu@intel.com,
	thomas@monjalon.net, motih@mellanox.com, matan@mellanox.com,
	harry.van.haaren@intel.com, qi.z.zhang@intel.com,
	shaopeng.he@intel.com, bernard.iremonger@intel.com,
	arybchenko@solarflare.com, anatoly.burakov@intel.com
Cc: jblunck@infradead.org, shreyansh.jain@nxp.com, dev@dpdk.org,
	jia.guo@intel.com, helin.zhang@intel.com,
	jerin.jacob@caviumnetworks.com
Subject: [dpdk-dev] [PATCH v3 0/4] Enable hotplug in vfio
Date: Tue,  2 Oct 2018 20:44:58 +0800	[thread overview]
Message-ID: <1538484302-97153-1-git-send-email-jia.guo@intel.com> (raw)
In-Reply-To: <1534503091-31910-1-git-send-email-jia.guo@intel.com>

As we may know that the process of hotplug is different between igb_uio
and vfio. For igb_uio, it could use uevent notification and memory
failure handle mechanism for hot-unplug. But for vfio, when device is be
hot-unplugged, the uevent can not be detected immediately, because of the
vfio kernel module will use a special mechanism to guaranty the pci
device would not be deleted until the user space release the resources,
so it will use another event “req notifier” at first to notify user space
to release resources for hotplug.

This patch will add a new interrupt type of req notifier in eal interrupt,
and add the new interrupt handler in pci device to handle the req device
event. When the req notifier be detected, it can trigger the device event
callback process to process for hot-unplug. With this mechanism, hotplug
could be enable in vfio.

patchset history:
v3->v2:
change some commit log and coding style and typo.

v2->v1:
change the rte_dev_event_callback_prcess from internal to external api
for bus or app usage.
change some code logic.

Jeff Guo (4):
  eal: add a new req notifier to eal interrupt
  eal: modify device event callback process func
  pci: add req handler field to generic pci device
  vfio: enable vfio hotplug by req notifier handler

 app/test-pmd/testpmd.c                             |   4 +-
 drivers/bus/pci/linux/pci_vfio.c                   | 111 +++++++++++++++++++++
 drivers/bus/pci/pci_common.c                       |  10 ++
 drivers/bus/pci/rte_bus_pci.h                      |   1 +
 lib/librte_eal/bsdapp/eal/eal_dev.c                |   8 ++
 lib/librte_eal/common/eal_common_dev.c             |   5 +-
 lib/librte_eal/common/eal_private.h                |  12 ---
 lib/librte_eal/common/include/rte_dev.h            |  18 +++-
 lib/librte_eal/common/include/rte_eal_interrupts.h |   1 +
 lib/librte_eal/linuxapp/eal/eal_dev.c              |   2 +-
 lib/librte_eal/linuxapp/eal/eal_interrupts.c       |  71 +++++++++++++
 lib/librte_eal/rte_eal_version.map                 |   1 +
 12 files changed, 226 insertions(+), 18 deletions(-)

-- 
2.7.4

  parent reply	other threads:[~2018-10-02 12:48 UTC|newest]

Thread overview: 63+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2018-08-17 10:51 [dpdk-dev] [PATCH v1 0/5] " Jeff Guo
2018-08-17 10:51 ` [dpdk-dev] [PATCH v1 1/5] eal: add a new req notifier to eal interrupt Jeff Guo
2018-08-17 10:51 ` [dpdk-dev] [PATCH v1 2/5] eal: add a new req event to device event Jeff Guo
2018-08-20 10:37   ` Andrew Rybchenko
2018-08-21  6:56     ` Jeff Guo
2018-08-21  7:20       ` Andrew Rybchenko
2018-08-21  7:37         ` Jeff Guo
2018-08-17 10:51 ` [dpdk-dev] [PATCH v1 3/5] eal: modify device event callback process func Jeff Guo
2018-09-26 12:20   ` Burakov, Anatoly
2018-09-30 10:30     ` Jeff Guo
2018-09-26 12:20   ` Burakov, Anatoly
2018-09-30 10:31     ` Jeff Guo
2018-08-17 10:51 ` [dpdk-dev] [PATCH v1 4/5] pci: add req handler field to generic pci device Jeff Guo
2018-09-26 12:22   ` Burakov, Anatoly
2018-09-29  6:15     ` Jeff Guo
2018-10-01  7:51       ` Burakov, Anatoly
2018-08-17 10:51 ` [dpdk-dev] [PATCH v1 5/5] vfio: enable vfio hotplug by req notifier handler Jeff Guo
2018-09-26 12:28   ` Burakov, Anatoly
2018-09-29  5:51     ` Jeff Guo
2018-08-20  9:15 ` [dpdk-dev] [PATCH v1 0/5] Enable hotplug in vfio Gaëtan Rivet
2018-08-21  6:45   ` Jeff Guo
2018-08-21  8:17     ` Gaëtan Rivet
2018-09-30 14:16 ` [dpdk-dev] [PATCH v2 0/4] " Jeff Guo
2018-09-30 14:16   ` [dpdk-dev] [PATCH v2 1/4] eal: add a new req notifier to eal interrupt Jeff Guo
2018-10-01  9:46     ` Andrew Rybchenko
2018-10-02  4:30       ` Jeff Guo
2018-10-02  6:51         ` Andrew Rybchenko
2018-09-30 14:16   ` [dpdk-dev] [PATCH v2 2/4] eal: modify device event callback process func Jeff Guo
2018-10-01  9:46     ` Andrew Rybchenko
2018-10-02  4:45       ` Jeff Guo
2018-10-02  6:53         ` Andrew Rybchenko
2018-09-30 14:16   ` [dpdk-dev] [PATCH v2 3/4] pci: add req handler field to generic pci device Jeff Guo
2018-10-01  9:46     ` Andrew Rybchenko
2018-10-02  6:32       ` Jeff Guo
2018-09-30 14:16   ` [dpdk-dev] [PATCH v2 4/4] vfio: enable vfio hotplug by req notifier handler Jeff Guo
2018-10-01  9:47     ` Andrew Rybchenko
2018-10-02  5:42       ` Jeff Guo
2018-10-02 12:42 ` [dpdk-dev] [PATCH v2 0/4] Enable hotplug in vfio Jeff Guo
2018-10-02 12:42   ` [dpdk-dev] [PATCH v2 1/4] eal: add a new req notifier to eal interrupt Jeff Guo
2018-10-02 12:42   ` [dpdk-dev] [PATCH v2 2/4] eal: modify device event callback process func Jeff Guo
2018-10-02 12:42   ` [dpdk-dev] [PATCH v2 3/4] pci: add req handler field to generic pci device Jeff Guo
2018-10-02 12:42   ` [dpdk-dev] [PATCH v2 4/4] vfio: enable vfio hotplug by req notifier handler Jeff Guo
2018-10-02 12:44 ` Jeff Guo [this message]
2018-10-02 12:44   ` [dpdk-dev] [PATCH v3 1/4] eal: add a new req notifier to eal interrupt Jeff Guo
2018-10-02 12:45   ` [dpdk-dev] [PATCH v3 2/4] eal: modify device event callback process func Jeff Guo
2018-10-02 12:45   ` [dpdk-dev] [PATCH v3 3/4] pci: add req handler field to generic pci device Jeff Guo
2018-10-02 12:45   ` [dpdk-dev] [PATCH v3 4/4] vfio: enable vfio hotplug by req notifier handler Jeff Guo
2018-10-02 12:58 ` [dpdk-dev] [PATCH v3 0/4] Enable hotplug in vfio Jeff Guo
2018-10-02 12:58   ` [dpdk-dev] [PATCH v3 1/4] eal: add a new req notifier to eal interrupt Jeff Guo
2018-10-02 12:58   ` [dpdk-dev] [PATCH v3 2/4] eal: modify device event callback process func Jeff Guo
2018-10-02 12:58   ` [dpdk-dev] [PATCH v3 3/4] pci: add req handler field to generic pci device Jeff Guo
2018-10-02 12:58   ` [dpdk-dev] [PATCH v3 4/4] vfio: enable vfio hotplug by req notifier handler Jeff Guo
2018-10-02 14:15     ` Burakov, Anatoly
2018-10-04  5:05       ` Jeff Guo
2018-10-04  6:44 ` [dpdk-dev] [PATCH v4 0/4] Enable hotplug in vfio Jeff Guo
2018-10-04  6:44   ` [dpdk-dev] [PATCH v4 1/4] eal: add a new req notifier to eal interrupt Jeff Guo
2018-10-04  6:44   ` [dpdk-dev] [PATCH v4 2/4] eal: modify device event callback process func Jeff Guo
2018-10-04  6:44   ` [dpdk-dev] [PATCH v4 3/4] pci: add req handler field to generic pci device Jeff Guo
2018-10-15  9:12     ` Thomas Monjalon
2018-10-15 10:01       ` Thomas Monjalon
2018-10-04  6:44   ` [dpdk-dev] [PATCH v4 4/4] vfio: enable vfio hotplug by req notifier handler Jeff Guo
2018-10-04  9:11   ` [dpdk-dev] [PATCH v4 0/4] Enable hotplug in vfio Burakov, Anatoly
2018-10-15 21:47     ` Thomas Monjalon

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