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From: David Marchand <david.marchand@redhat.com>
To: dev@dpdk.org
Subject: [PATCH v2 0/7] Rework device probing
Date: Thu, 26 Mar 2026 11:24:16 +0100	[thread overview]
Message-ID: <20260326102424.2361945-1-david.marchand@redhat.com> (raw)
In-Reply-To: <20260323105306.1531689-1-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 v1:
- restored per bus scan mode,
- fixed logic in device selection for dma/idxd,
- fixed raw/ifpga hotplug on ifpga bus,
- fixed some doxygen,

Changes since RFC v3:
- removed per bus scan mode,

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               | 21 ++----
 drivers/bus/ifpga/ifpga_bus.c                |  8 ++-
 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 +----
 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                 | 38 +++++++++++
 29 files changed, 290 insertions(+), 362 deletions(-)

-- 
2.53.0


  parent reply	other threads:[~2026-03-26 10:24 UTC|newest]

Thread overview: 67+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2026-03-23 10:52 [PATCH 0/8] Rework device probing David Marchand
2026-03-23 10:52 ` [PATCH 1/8] devtools: check packet forwarding in null test David Marchand
2026-03-23 10:52 ` [PATCH 2/8] bus/fslmc: fix bus cleanup David Marchand
2026-03-23 16:59   ` Kevin Traynor
2026-03-26  8:22     ` David Marchand
2026-03-26  8:49       ` Kevin Traynor
2026-03-24  5:15   ` Hemant Agrawal
2026-03-24  5:15   ` Hemant Agrawal
2026-03-23 10:52 ` [PATCH 3/8] drivers/bus: require probe function for NXP drivers David Marchand
2026-03-23 16:59   ` Kevin Traynor
2026-03-24  5:15   ` Hemant Agrawal
2026-03-23 10:52 ` [PATCH 4/8] drivers: cleanup devargs lookup in bus scan David Marchand
2026-03-24  5:16   ` Hemant Agrawal
2026-03-24 14:13   ` Kevin Traynor
2026-03-24 16:10   ` Stephen Hemminger
2026-03-23 10:52 ` [PATCH 5/8] bus: factorize devargs lookup David Marchand
2026-03-24 14:16   ` Kevin Traynor
2026-03-24 16:11   ` Stephen Hemminger
2026-03-23 10:53 ` [PATCH 6/8] bus: factorize device selection David Marchand
2026-03-24 14:15   ` Kevin Traynor
2026-03-26  8:48     ` David Marchand
2026-03-24 16:12   ` Stephen Hemminger
2026-03-23 10:53 ` [PATCH 7/8] bus: remove per bus scan mode David Marchand
2026-03-24 16:02   ` Kevin Traynor
2026-03-24 16:27     ` Kevin Traynor
2026-03-26  8:54     ` David Marchand
2026-03-23 10:53 ` [PATCH 8/8] eal: configure initial device probing David Marchand
2026-03-25 10:57   ` Kevin Traynor
2026-03-24  5:17 ` [PATCH 0/8] Rework " Hemant Agrawal
2026-03-25 15:22 ` Maxime Leroy
2026-03-26 10:24 ` David Marchand [this message]
2026-03-26 10:24   ` [PATCH v2 1/7] devtools: check packet forwarding in null test David Marchand
2026-03-26 10:24   ` [PATCH v2 2/7] bus/fslmc: fix bus cleanup David Marchand
2026-03-26 11:50     ` Kevin Traynor
2026-03-26 10:24   ` [PATCH v2 3/7] drivers/bus: require probe function for NXP drivers David Marchand
2026-03-26 10:24   ` [PATCH v2 4/7] drivers: cleanup devargs lookup in bus scan David Marchand
2026-03-28  3:13     ` fengchengwen
2026-03-26 10:24   ` [PATCH v2 5/7] bus: factorize devargs lookup David Marchand
2026-03-26 11:51     ` Kevin Traynor
2026-03-28  3:33     ` fengchengwen
2026-04-03 14:22       ` David Marchand
2026-03-26 10:24   ` [PATCH v2 6/7] bus: factorize device selection David Marchand
2026-03-26 11:52     ` Kevin Traynor
2026-03-28  3:38     ` fengchengwen
2026-03-26 10:24   ` [PATCH v2 7/7] eal: configure initial device probing David Marchand
2026-03-28  4:00     ` fengchengwen
2026-04-03 14:25       ` David Marchand
2026-04-07 11:52 ` [PATCH v3 0/7] Rework " David Marchand
2026-04-07 11:52   ` [PATCH v3 1/7] devtools: check packet forwarding in null test David Marchand
2026-04-07 11:52   ` [PATCH v3 2/7] bus/fslmc: fix bus cleanup David Marchand
2026-04-07 11:52   ` [PATCH v3 3/7] drivers/bus: require probe function for NXP drivers David Marchand
2026-04-07 11:52   ` [PATCH v3 4/7] drivers/bus: cleanup devargs lookup in scan David Marchand
2026-04-07 11:52   ` [PATCH v3 5/7] bus: factorize devargs lookup David Marchand
2026-04-08  1:18     ` fengchengwen
2026-04-07 11:52   ` [PATCH v3 6/7] bus: factorize device selection David Marchand
2026-04-07 11:52   ` [PATCH v3 7/7] eal: configure initial device probing David Marchand
2026-04-08  1:44     ` fengchengwen
2026-04-07 11:58   ` [PATCH v3 0/7] Rework " David Marchand
2026-04-07 15:12   ` Stephen Hemminger
2026-04-10 14:34   ` Morten Brørup
2026-04-10 15:16     ` Kevin Traynor
2026-04-10 17:37     ` Stephen Hemminger
2026-04-10 21:13       ` [EXTERNAL] " Long Li
2026-04-10 22:50         ` Stephen Hemminger
2026-04-11  7:30         ` Morten Brørup
2026-04-11 10:10     ` David Marchand
2026-04-11 10:23       ` David Marchand

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