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From: David Marchand <david.marchand@redhat.com>
To: dev@dpdk.org
Subject: [RFC v3 0/7] Rework device probing
Date: Thu,  5 Mar 2026 17:45:42 +0100	[thread overview]
Message-ID: <20260305164550.2067453-1-david.marchand@redhat.com> (raw)
In-Reply-To: <20260225112922.3982104-1-david.marchand@redhat.com>

Applications relying on device hotplug don't work well with the default
probing of all available resources.
This series proposes to change this behavior via a new EAL option.


-- 
David Marchand

Changes since RFC v2:
- went one step further and reworked devargs lookup in buses following
  Bruce comment (see patch 4 which is cosmetic, and patch 5),
- updated device selection helper accordingly and
  changed API to be device name based,
- renamed option, added check on -b presence, updated doc in the last
  patch,

Changes since RFC v1:
- reviewed bus probe() and cleaned up NXP drivers,
- changed approach following Bruce comment,

David Marchand (7):
  devtools: check packet forwarding in null test
  bus/fslmc: fix bus cleanup
  drivers/bus: require probe function for NXP drivers
  drivers: cleanup devargs lookup in bus scan
  bus: factorize devargs lookup
  bus: factorize device selection
  eal: configure initial device probing

 app/test/test_eal_flags.c                    | 63 +++++++++++++++++
 devtools/test-null.sh                        | 10 ++-
 doc/guides/linux_gsg/eal_args.include.rst    | 13 ++++
 drivers/bus/auxiliary/auxiliary_common.c     | 33 +--------
 drivers/bus/auxiliary/bus_auxiliary_driver.h |  2 -
 drivers/bus/auxiliary/linux/auxiliary.c      |  2 +-
 drivers/bus/auxiliary/private.h              |  6 --
 drivers/bus/cdx/cdx.c                        | 34 +---------
 drivers/bus/dpaa/dpaa_bus.c                  | 71 +++++++++-----------
 drivers/bus/fslmc/fslmc_bus.c                | 69 ++++++++-----------
 drivers/bus/fslmc/fslmc_vfio.c               | 22 ++----
 drivers/bus/ifpga/bus_ifpga_driver.h         |  2 -
 drivers/bus/ifpga/ifpga_bus.c                |  4 +-
 drivers/bus/pci/bsd/pci.c                    |  5 +-
 drivers/bus/pci/linux/pci.c                  |  2 +-
 drivers/bus/pci/pci_common.c                 | 51 ++++----------
 drivers/bus/pci/private.h                    | 11 ---
 drivers/bus/pci/windows/pci.c                |  4 +-
 drivers/bus/platform/platform.c              | 43 +-----------
 drivers/bus/uacce/uacce.c                    | 39 +----------
 drivers/bus/vdev/vdev.c                      |  2 +-
 drivers/bus/vmbus/linux/vmbus_bus.c          |  2 +-
 drivers/bus/vmbus/private.h                  |  3 -
 drivers/bus/vmbus/vmbus_common.c             | 45 +++----------
 drivers/dma/idxd/idxd_bus.c                  | 18 +----
 drivers/raw/ifpga/ifpga_rawdev.c             |  2 +-
 lib/eal/common/eal_common_bus.c              | 44 ++++++++++++
 lib/eal/common/eal_common_options.c          | 10 +++
 lib/eal/common/eal_internal_cfg.h            |  1 +
 lib/eal/common/eal_option_list.h             |  2 +
 lib/eal/include/bus_driver.h                 | 37 ++++++++++
 31 files changed, 288 insertions(+), 364 deletions(-)

-- 
2.53.0


  parent reply	other threads:[~2026-03-05 16:46 UTC|newest]

Thread overview: 40+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2026-02-25 11:29 [RFC 1/2] devtools: check packet forwarding in null test David Marchand
2026-02-25 11:29 ` [RFC 2/2] eal: configure initial device probing David Marchand
2026-02-25 12:09   ` Bruce Richardson
2026-02-25 17:53     ` David Marchand
2026-02-26 16:20 ` [RFC v2 0/5] Rework " David Marchand
2026-02-26 16:20   ` [RFC v2 1/5] devtools: check packet forwarding in null test David Marchand
2026-02-26 16:35     ` Bruce Richardson
2026-02-26 16:20   ` [RFC v2 2/5] bus/fslmc: fix bus cleanup David Marchand
2026-02-26 16:20   ` [RFC v2 3/5] drivers/bus: require probe function for NXP drivers David Marchand
2026-02-26 16:24     ` Bruce Richardson
2026-02-26 16:20   ` [RFC v2 4/5] bus: factorize device selection David Marchand
2026-02-26 16:31     ` Bruce Richardson
2026-02-27 14:17       ` David Marchand
2026-02-27 14:33         ` Bruce Richardson
2026-02-26 16:20   ` [RFC v2 5/5] eal: configure initial device probing David Marchand
2026-02-26 16:34     ` Bruce Richardson
2026-02-26 16:50     ` Robin Jarry
2026-02-27 13:43       ` Thomas Monjalon
2026-02-27 13:51         ` Bruce Richardson
2026-02-27 22:10           ` Stephen Hemminger
2026-03-02  9:02             ` Bruce Richardson
2026-03-02 11:08               ` Morten Brørup
2026-03-02 11:13               ` David Marchand
2026-03-05 16:45 ` David Marchand [this message]
2026-03-05 16:45   ` [RFC v3 1/7] devtools: check packet forwarding in null test David Marchand
2026-03-05 16:45   ` [RFC v3 2/7] bus/fslmc: fix bus cleanup David Marchand
2026-03-05 16:45   ` [RFC v3 3/7] drivers/bus: require probe function for NXP drivers David Marchand
2026-03-05 16:45   ` [RFC v3 4/7] drivers: cleanup devargs lookup in bus scan David Marchand
2026-03-05 16:56     ` Bruce Richardson
2026-03-05 16:45   ` [RFC v3 5/7] bus: factorize devargs lookup David Marchand
2026-03-05 17:06     ` Bruce Richardson
2026-03-05 17:10       ` David Marchand
2026-03-05 16:45   ` [RFC v3 6/7] bus: factorize device selection David Marchand
2026-03-05 17:30     ` Bruce Richardson
2026-03-09  9:50       ` David Marchand
2026-03-07 20:59     ` Robin Jarry
2026-03-05 16:45   ` [RFC v3 7/7] eal: configure initial device probing David Marchand
2026-03-05 17:33     ` Bruce Richardson
2026-03-07 21:05     ` Robin Jarry
2026-03-06  8:26   ` [RFC v3 0/7] Rework " David Marchand

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