From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from mails.dpdk.org (mails.dpdk.org [217.70.189.124]) by smtp.lore.kernel.org (Postfix) with ESMTP id D15BEF9D0C9 for ; Tue, 14 Apr 2026 12:39:14 +0000 (UTC) Received: from mails.dpdk.org (localhost [127.0.0.1]) by mails.dpdk.org (Postfix) with ESMTP id A3DF2402E1; Tue, 14 Apr 2026 14:39:13 +0200 (CEST) Received: from us-smtp-delivery-124.mimecast.com (us-smtp-delivery-124.mimecast.com [170.10.133.124]) by mails.dpdk.org (Postfix) with ESMTP id 6E6B2402C8 for ; Tue, 14 Apr 2026 14:39:11 +0200 (CEST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1776170350; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:mime-version:mime-version:content-type:content-type: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=IvFB9QRhZm2CSNh8rVHWlZmJEgOGR/XuiYyGSlx5cXk=; b=VxOx71SX/fUtFnCnP2Sy2J06rPKQ4tMJd++WZc90sQPbXSiBPR5Jm6NRbJ9rSJiTgTkEqX o8YCTZC5t3Kn3vQtgI5r3lDz8ExJRUCO55+Sz8/i+rqzjdtRXXHuaktNiRDE+E7Qg2Flqh KOLOClXp//oSNq4CLpBGu6We2QxFTd0= Received: from mx-prod-mc-03.mail-002.prod.us-west-2.aws.redhat.com (ec2-54-186-198-63.us-west-2.compute.amazonaws.com [54.186.198.63]) by relay.mimecast.com with ESMTP with STARTTLS (version=TLSv1.3, cipher=TLS_AES_256_GCM_SHA384) id us-mta-258-wiSp3Vk7Ofy_ZTR_qcnjCw-1; Tue, 14 Apr 2026 08:39:08 -0400 X-MC-Unique: wiSp3Vk7Ofy_ZTR_qcnjCw-1 X-Mimecast-MFC-AGG-ID: wiSp3Vk7Ofy_ZTR_qcnjCw_1776170346 Received: from mx-prod-int-01.mail-002.prod.us-west-2.aws.redhat.com (mx-prod-int-01.mail-002.prod.us-west-2.aws.redhat.com [10.30.177.4]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (2048 bits) server-digest SHA256) (No client certificate requested) by mx-prod-mc-03.mail-002.prod.us-west-2.aws.redhat.com (Postfix) with ESMTPS id 758FF19560B2 for ; Tue, 14 Apr 2026 12:39:06 +0000 (UTC) Received: from dmarchan.lan (unknown [10.44.49.184]) by mx-prod-int-01.mail-002.prod.us-west-2.aws.redhat.com (Postfix) with ESMTP id AA4A33000C1D for ; Tue, 14 Apr 2026 12:39:05 +0000 (UTC) From: David Marchand To: dev@dpdk.org Subject: [PATCH v4 0/7] Rework device probing Date: Tue, 14 Apr 2026 14:38:52 +0200 Message-ID: <20260414123900.3355883-1-david.marchand@redhat.com> In-Reply-To: <20260323105306.1531689-1-david.marchand@redhat.com> References: <20260323105306.1531689-1-david.marchand@redhat.com> MIME-Version: 1.0 X-Scanned-By: MIMEDefang 3.4.1 on 10.30.177.4 X-Mimecast-Spam-Score: 0 X-Mimecast-MFC-PROC-ID: EUif9fvXQdq7yRmvnaJrkzr5wXUvyALbW-Ys4dVCT18_1776170346 X-Mimecast-Originator: redhat.com Content-Transfer-Encoding: 8bit content-type: text/plain; charset="US-ASCII"; x-default=true X-BeenThere: dev@dpdk.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: DPDK patches and discussions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: dev-bounces@dpdk.org 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 v3: - renamed some internal API, - updated documentation, - added a release notes entry, 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 | 18 +++++ doc/guides/rel_notes/release_26_07.rst | 8 +++ 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 ++++++++++ 30 files changed, 314 insertions(+), 367 deletions(-) -- 2.53.0