On 4/10/26 3:34 PM, Morten Brørup wrote: > Is there a workaround until this patch is added, if I don't want > rte_eal_init() to probe any devices, but I want my application to probe > devices later by calling rte_bus_scan() followed by rte_bus_probe()? > > It's not something we really need, so if you don't know it off the top of > your head, don't spend time trying to figure it out. >
The workaround we have used is '-a 0000:00:00.0' Only allowing a dummy device, hence other devices are hotplugged as needed. > > Venlig hilsen / Kind regards, > -Morten Brørup > >> -----Original Message----- >> From: David Marchand [mailto:[email protected]] >> Sent: Tuesday, 7 April 2026 13.52 >> To: [email protected] >> Subject: [PATCH v3 0/7] Rework device probing >> >> 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 v2: >> - rebased for late 26.03 fslmc bus changes, >> - fixed devargs lookup, >> - added debug logs, >> >> 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/bus: cleanup devargs lookup in 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 | 75 ++++++++------------ >> 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 | 54 ++++++++++++++ >> 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, 301 insertions(+), 367 deletions(-) >> >> -- >> 2.53.0 >
