From: Huawei Xie <huawei.xie@intel.com>
To: dev@dpdk.org
Subject: [PATCH 0/4] check if any kernel driver is manipulating the virtio device
Date: Fri, 25 Dec 2015 02:38:08 +0800 [thread overview]
Message-ID: <1450982292-129560-1-git-send-email-huawei.xie@intel.com> (raw)
In-Reply-To: <20151222035041.GA7532@pxdev.xzpeter.org>
virtio PMD doesn't set RTE_PCI_DRV_NEED_MAPPING in drv_flags of its
eth_driver. It will try igb_uio and PORT IO in turn to configure
virtio device. Even user in guest VM doesn't want to use virtio for
DPDK, virtio PMD will take over the device blindly.
The more serious problem is kernel driver is still manipulating the
device, which causes driver conflict.
This patch checks if there is any kernel driver manipulating the
virtio device before virtio PMD uses port IO to configure the device.
Huawei Xie (4):
eal: make the comment more accurate
eal: set kdrv to RTE_KDRV_NONE if kernel driver isn't manipulating the device.
virtio: return 1 to tell the kernel we don't take over this device
virtio: check if any kernel driver is manipulating the virtio device
drivers/net/virtio/virtio_ethdev.c | 15 +++++++++++++--
lib/librte_eal/common/eal_common_pci.c | 8 ++++----
lib/librte_eal/linuxapp/eal/eal_pci.c | 2 +-
3 files changed, 18 insertions(+), 7 deletions(-)
--
1.8.1.4
next prev parent reply other threads:[~2015-12-25 10:33 UTC|newest]
Thread overview: 92+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-12-22 3:50 [Question] How pmd virtio works without UIO? Peter Xu
2015-12-22 7:00 ` Yuanhan Liu
2015-12-22 8:23 ` Peter Xu
2015-12-22 8:32 ` Yuanhan Liu
2015-12-22 9:56 ` Peter Xu
2015-12-22 10:47 ` Xie, Huawei
2015-12-22 10:53 ` Xie, Huawei
2015-12-22 11:39 ` Peter Xu
2015-12-22 14:31 ` Xie, Huawei
2015-12-22 16:38 ` Xie, Huawei
2015-12-23 1:55 ` Peter Xu
2015-12-23 2:09 ` Yuanhan Liu
2015-12-23 2:38 ` Peter Xu
2015-12-23 22:26 ` Thomas Monjalon
2015-12-24 3:30 ` Yuanhan Liu
2015-12-24 17:56 ` Stephen Hemminger
2015-12-23 2:01 ` Yuanhan Liu
2015-12-23 2:41 ` Peter Xu
2015-12-23 2:58 ` Yuanhan Liu
2015-12-23 5:13 ` Xie, Huawei
2015-12-23 22:20 ` Thomas Monjalon
2015-12-24 18:38 ` Huawei Xie [this message]
2015-12-24 18:38 ` [PATCH 1/4] eal: make the comment more accurate Huawei Xie
2015-12-24 18:38 ` [PATCH 2/4] eal: set kdrv to RTE_KDRV_NONE if kernel driver isn't manipulating the device Huawei Xie
2015-12-28 20:24 ` David Marchand
2015-12-24 18:38 ` [PATCH 3/4] virtio: return 1 to tell the upper layer we don't take over this device Huawei Xie
2015-12-28 5:25 ` Yuanhan Liu
2015-12-28 5:38 ` Xie, Huawei
2015-12-24 18:38 ` [PATCH 4/4] virtio: check if any kernel driver is manipulating the device Huawei Xie
2015-12-28 5:26 ` Yuanhan Liu
2015-12-28 5:29 ` Xie, Huawei
2016-01-04 9:02 ` Xie, Huawei
2016-01-04 17:29 ` Stephen Hemminger
2016-01-05 14:44 ` Panu Matilainen
2015-12-28 3:08 ` [PATCH 0/4] check if any kernel driver is manipulating the virtio device Peter Xu
2016-01-03 17:56 ` [PATCH v2 0/4] fix the issue that DPDK takes over virtio device blindly Huawei Xie
2016-01-03 17:56 ` [PATCH v2 1/4] eal: make the comment more accurate Huawei Xie
2016-01-03 17:56 ` [PATCH v2 2/4] eal: set kdrv to RTE_KDRV_NONE if kernel driver isn't manipulating the device Huawei Xie
2016-01-03 17:56 ` [PATCH v2 3/4] virtio: return 1 to tell the upper layer we don't take over this device Huawei Xie
2016-01-03 17:56 ` [PATCH v2 4/4] virtio: check if any kernel driver is manipulating the virtio device Huawei Xie
2016-01-04 17:24 ` Stephen Hemminger
2016-01-04 17:56 ` Xie, Huawei
2016-01-05 1:56 ` Yuanhan Liu
2016-01-07 13:17 ` Ferruh Yigit
2016-01-07 14:17 ` Panu Matilainen
2016-01-27 12:43 ` Thomas Monjalon
2016-01-04 17:25 ` [PATCH v2 0/4] fix the issue that DPDK takes over virtio device blindly Stephen Hemminger
2016-01-12 3:02 ` Xie, Huawei
2016-01-12 4:23 ` Santosh Shukla
2016-01-12 5:16 ` Xie, Huawei
2016-01-13 12:17 ` Santosh Shukla
2016-01-27 15:21 ` [PATCH v3 " Huawei Xie
2016-01-27 15:21 ` [PATCH v3 1/4] eal: make the comment more accurate Huawei Xie
2016-01-27 15:21 ` [PATCH v3 2/4] eal: set kdrv to RTE_KDRV_NONE if kernel driver isn't manipulating the device Huawei Xie
2016-01-27 15:21 ` [PATCH v3 3/4] virtio: return 1 to tell the upper layer we don't take over this device Huawei Xie
2016-01-27 15:21 ` [PATCH v3 4/4] virtio: check if kernel driver is manipulating the virtio device Huawei Xie
2016-01-28 9:55 ` Panu Matilainen
2016-01-29 7:40 ` [PATCH v3 0/4] fix the issue that DPDK takes over virtio device blindly Yuanhan Liu
2016-02-24 12:43 ` Thomas Monjalon
2016-02-26 6:09 ` Xie, Huawei
2016-02-26 8:40 ` David Marchand
2016-02-26 9:00 ` Xie, Huawei
2016-02-26 1:53 ` [PATCH v4 " Huawei Xie
2016-02-26 1:53 ` [PATCH v4 1/4] eal: make the comment more accurate Huawei Xie
2016-02-29 8:48 ` David Marchand
2016-02-26 1:53 ` [PATCH v4 2/4] eal: set kdrv to RTE_KDRV_NONE if kernel driver isn't managing the device Huawei Xie
2016-02-29 2:34 ` Xie, Huawei
2016-02-29 8:46 ` David Marchand
2016-02-29 9:00 ` Xie, Huawei
2016-02-29 9:05 ` David Marchand
2016-02-26 1:53 ` [PATCH v4 3/4] eal: call pci_ioport_map when " Huawei Xie
2016-02-29 9:02 ` David Marchand
2016-02-26 1:53 ` [PATCH v4 4/4] virtio: return 1 to tell the upper layer we don't take over this device Huawei Xie
2016-02-29 13:15 ` Santosh Shukla
2016-03-01 7:16 ` Thomas Monjalon
2016-03-01 7:53 ` Xie, Huawei
2016-03-01 8:20 ` Thomas Monjalon
2016-03-01 8:39 ` Xie, Huawei
2016-03-01 9:55 ` Thomas Monjalon
2016-03-01 10:08 ` Xie, Huawei
2016-03-08 17:00 ` Xie, Huawei
2016-03-08 23:01 ` Thomas Monjalon
2016-03-08 15:33 ` [PATCH v5 0/6] fix the issue that DPDK takes over virtio device blindly Huawei Xie
2016-03-08 15:33 ` [PATCH v5 1/6] eal: make the comment more accurate Huawei Xie
2016-03-08 15:33 ` [PATCH v5 2/6] eal: RTE_KDRV_NONE means kernel driver isn't managing the device Huawei Xie
2016-03-08 15:33 ` [PATCH v5 3/6] eal: use new RTE_ARCH_X86 for x86 arch Huawei Xie
2016-03-09 23:04 ` Thomas Monjalon
2016-03-08 15:33 ` [PATCH v5 4/6] eal: simple code rework Huawei Xie
2016-03-08 15:33 ` [PATCH v5 5/6] eal: map IO port when kernel driver isn't managing the device Huawei Xie
2016-03-08 15:33 ` [PATCH v5 6/6] virtio: return 1 to tell the upper layer we don't take over this device Huawei Xie
2016-03-09 23:23 ` Thomas Monjalon
2016-03-09 23:35 ` [PATCH v5 0/6] fix the issue that DPDK takes over virtio device blindly Thomas Monjalon
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