From mboxrd@z Thu Jan 1 00:00:00 1970 From: David Marchand Subject: [PATCH v2 0/4] rework ioport access for virtio Date: Sun, 7 Feb 2016 08:48:33 +0100 Message-ID: <1454831317-4542-1-git-send-email-david.marchand@6wind.com> References: <1454694945-18040-1-git-send-email-david.marchand@6wind.com> To: dev@dpdk.org Return-path: Received: from mail-wm0-f41.google.com (mail-wm0-f41.google.com [74.125.82.41]) by dpdk.org (Postfix) with ESMTP id B65A9532D for ; Sun, 7 Feb 2016 08:48:43 +0100 (CET) Received: by mail-wm0-f41.google.com with SMTP id 128so119102810wmz.1 for ; Sat, 06 Feb 2016 23:48:43 -0800 (PST) In-Reply-To: <1454694945-18040-1-git-send-email-david.marchand@6wind.com> List-Id: patches and discussions about DPDK List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: dev-bounces@dpdk.org Sender: "dev" Introduce a new pci ioport api in eal to mask all arch / kernel driver specifics. - rte_eal_pci_ioport_map is responsible for initialising an rte_pci_ioport object that is used in subsequent calls, this function must be tweaked per architecture and per kernel driver, - rte_eal_pci_ioport_read / rte_eal_pci_ioport_write uses a rte_pci_ioport object to read / write those resources, - rte_eal_pci_ioport_unmap releases resources used by a rte_pci_ioport object if necessary. There is still some more work to ensure intr handle are properly initialized and released when used in conjonction with rte_eal_map_device() api calls. BSD code has been neither run nor compiled, please can someone confirm I did not break too much stuff ? virtio legacy code has been updated accordingly. With this, virtio code should be ready for other archs now. So in the end, all that is missing on linux is some vfio update for support of all architectures that have vfio. Changes since v1: - dropped rte_ioport and removed the arch headers, if performance is an issue, we will see how to enhance this in later patches Regards, -- David Marchand David Marchand (4): virtio/bsd: fix typo virtio: fix incorrect check when mapping pci resources eal: introduce pci ioport api virtio: use pci ioport api drivers/net/virtio/virtio_pci.c | 343 ++++-------------------- drivers/net/virtio/virtio_pci.h | 38 +-- lib/librte_eal/bsdapp/eal/eal_pci.c | 135 ++++++++++ lib/librte_eal/bsdapp/eal/rte_eal_version.map | 4 + lib/librte_eal/common/include/rte_pci.h | 67 +++++ lib/librte_eal/linuxapp/eal/eal_pci.c | 170 ++++++++++++ lib/librte_eal/linuxapp/eal/eal_pci_init.h | 16 ++ lib/librte_eal/linuxapp/eal/eal_pci_uio.c | 132 ++++++++- lib/librte_eal/linuxapp/eal/eal_pci_vfio.c | 37 +++ lib/librte_eal/linuxapp/eal/rte_eal_version.map | 4 + 10 files changed, 619 insertions(+), 327 deletions(-) -- 1.9.1