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a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1696665350; x=1728201350; h=message-id:date:subject:to:cc:references:from: in-reply-to:content-transfer-encoding:mime-version; bh=UZN1kG0SQ8tRSnS8fpdz8mNQtIZuC+2+ZH/YBjMpG4w=; b=Pn9fZHJQsx6DopHbYOjqug6xDtSvuY6hwy2dXAefRAC5kdbNYzUIWwU/ 1JS3cRT0WHdtiIA3F5fKt23fz6yW0Q3rTdP8SOhSIRWgrnpoEjvIh6GI5 lRixCdjGN1mjsh8XES0EkfilBq3ld6rZzIfdroKV/RWMQD0oECUfPTFNx nmNR4Ro89yXwxG9jwZHY7FUhAvhkRXJud+0FZhlDxAyDTJrPsfeQdwuh3 ySD2ZE9Y+DPW1KyCcqdFYcCH4XLboVR71jjQsEbdRd2DAENCX5aIyR0hU NvOK4r5fEHodLS1gbpCj2YJIm4JBftF4CN2JsO87i8n0Nhv8As3XizXEY g==; X-Mailman-Original-Authentication-Results: smtp3.osuosl.org; dkim=pass (2048-bit key) header.d=intel.com header.i=@intel.com header.a=rsa-sha256 header.s=Intel header.b=Pn9fZHJQ X-Mailman-Original-Authentication-Results: dkim=none (message not signed) header.d=none;dmarc=none action=none header.from=intel.com; Subject: Re: [Intel-wired-lan] [PATCH iwl-next v3 13/13] vfio/ice: Implement vfio_pci driver for E800 devices X-BeenThere: intel-wired-lan@osuosl.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Intel Wired Ethernet Linux Kernel Driver Development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: kevin.tian@intel.com, yishaih@nvidia.com, brett.creeley@amd.com, kvm@vger.kernel.org, netdev@vger.kernel.org, jesse.brandeburg@intel.com, shameerali.kolothum.thodi@huawei.com, edumazet@google.com, madhu.chittim@intel.com, intel-wired-lan@lists.osuosl.org, jgg@nvidia.com, sridhar.samudrala@intel.com, kuba@kernel.org, pabeni@redhat.com, davem@davemloft.net Content-Transfer-Encoding: 7bit Content-Type: text/plain; charset="us-ascii"; Format="flowed" Errors-To: intel-wired-lan-bounces@osuosl.org Sender: "Intel-wired-lan" On 10/4/2023 6:04 AM, Alex Williamson wrote: > On Mon, 18 Sep 2023 06:25:46 +0000 > Yahui Cao wrote: > >> From: Lingyu Liu >> >> Add a vendor-specific vfio_pci driver for E800 devices. >> >> It uses vfio_pci_core to register to the VFIO subsystem and then >> implements the E800 specific logic to support VF live migration. >> >> It implements the device state transition flow for live >> migration. >> >> Signed-off-by: Lingyu Liu >> Signed-off-by: Yahui Cao >> --- >> MAINTAINERS | 7 + >> drivers/vfio/pci/Kconfig | 2 + >> drivers/vfio/pci/Makefile | 2 + >> drivers/vfio/pci/ice/Kconfig | 10 + >> drivers/vfio/pci/ice/Makefile | 4 + >> drivers/vfio/pci/ice/ice_vfio_pci.c | 707 ++++++++++++++++++++++++++++ >> 6 files changed, 732 insertions(+) >> create mode 100644 drivers/vfio/pci/ice/Kconfig >> create mode 100644 drivers/vfio/pci/ice/Makefile >> create mode 100644 drivers/vfio/pci/ice/ice_vfio_pci.c > The prerequisite ice core driver support (ie. patches 1-12) should be > supplied as a branch to allow this variant driver to be merged through > the vfio tree. Tony, are you the right one who can help on deal with ice driver and variant driver merging dependency ? > > >> diff --git a/MAINTAINERS b/MAINTAINERS >> index 389fe9e38884..09ea8454219a 100644 >> --- a/MAINTAINERS >> +++ b/MAINTAINERS >> @@ -22608,6 +22608,13 @@ L: kvm@vger.kernel.org >> S: Maintained >> F: drivers/vfio/pci/mlx5/ >> >> +VFIO ICE PCI DRIVER >> +M: Yahui Cao >> +M: Lingyu Liu >> +L: kvm@vger.kernel.org >> +S: Maintained >> +F: drivers/vfio/pci/ice/ >> + >> VFIO PCI DEVICE SPECIFIC DRIVERS >> R: Jason Gunthorpe >> R: Yishai Hadas >> diff --git a/drivers/vfio/pci/Kconfig b/drivers/vfio/pci/Kconfig >> index 8125e5f37832..6618208947af 100644 >> --- a/drivers/vfio/pci/Kconfig >> +++ b/drivers/vfio/pci/Kconfig >> @@ -65,4 +65,6 @@ source "drivers/vfio/pci/hisilicon/Kconfig" >> >> source "drivers/vfio/pci/pds/Kconfig" >> >> +source "drivers/vfio/pci/ice/Kconfig" >> + >> endmenu >> diff --git a/drivers/vfio/pci/Makefile b/drivers/vfio/pci/Makefile >> index 45167be462d8..fc1df82df3ac 100644 >> --- a/drivers/vfio/pci/Makefile >> +++ b/drivers/vfio/pci/Makefile >> @@ -13,3 +13,5 @@ obj-$(CONFIG_MLX5_VFIO_PCI) += mlx5/ >> obj-$(CONFIG_HISI_ACC_VFIO_PCI) += hisilicon/ >> >> obj-$(CONFIG_PDS_VFIO_PCI) += pds/ >> + >> +obj-$(CONFIG_ICE_VFIO_PCI) += ice/ >> diff --git a/drivers/vfio/pci/ice/Kconfig b/drivers/vfio/pci/ice/Kconfig >> new file mode 100644 >> index 000000000000..4c6f348d3062 >> --- /dev/null >> +++ b/drivers/vfio/pci/ice/Kconfig >> @@ -0,0 +1,10 @@ >> +# SPDX-License-Identifier: GPL-2.0-only >> +config ICE_VFIO_PCI >> + tristate "VFIO support for Intel(R) Ethernet Connection E800 Series" >> + depends on ICE >> + depends on VFIO_PCI_CORE > s/depends on/select/ Sure. Will change to select VFIO_PCI_CORE > >> + help >> + This provides migration support for Intel(R) Ethernet connection E800 >> + series devices using the VFIO framework. >> + >> + If you don't know what to do here, say N. >> diff --git a/drivers/vfio/pci/ice/Makefile b/drivers/vfio/pci/ice/Makefile >> new file mode 100644 >> index 000000000000..259d4ab89105 >> --- /dev/null >> +++ b/drivers/vfio/pci/ice/Makefile >> @@ -0,0 +1,4 @@ >> +# SPDX-License-Identifier: GPL-2.0-only >> +obj-$(CONFIG_ICE_VFIO_PCI) += ice-vfio-pci.o >> +ice-vfio-pci-y := ice_vfio_pci.o >> + >> diff --git a/drivers/vfio/pci/ice/ice_vfio_pci.c b/drivers/vfio/pci/ice/ice_vfio_pci.c >> new file mode 100644 >> index 000000000000..60a0582d7932 >> --- /dev/null >> +++ b/drivers/vfio/pci/ice/ice_vfio_pci.c > Suggest renaming this to main.c If changing this to drivers/vfio/pci/ice/main.c, it may cause some naming conflict with networking driver file drivers/net/ethernet/intel/ice/ice_main.c and confusion. Could we still use ice_vfio_pci.c ? Since this variant driver only has single c source file( like hisilicon variant driver ) Thanks. Yahui. _______________________________________________ Intel-wired-lan mailing list Intel-wired-lan@osuosl.org https://lists.osuosl.org/mailman/listinfo/intel-wired-lan