From: Kirti Wankhede <kwankhede@nvidia.com> To: <alex.williamson@redhat.com>, <pbonzini@redhat.com>, <kraxel@redhat.com>, <cjia@nvidia.com> Cc: <qemu-devel@nongnu.org>, <kvm@vger.kernel.org>, <kevin.tian@intel.com>, <jike.song@intel.com>, <bjsdjshi@linux.vnet.ibm.com>, <linux-kernel@vger.kernel.org>, Kirti Wankhede <kwankhede@nvidia.com> Subject: [PATCH v10 11/19] vfio: Introduce common function to add capabilities Date: Thu, 27 Oct 2016 02:59:18 +0530 [thread overview] Message-ID: <1477517366-27871-12-git-send-email-kwankhede@nvidia.com> (raw) In-Reply-To: <1477517366-27871-1-git-send-email-kwankhede@nvidia.com> Vendor driver using mediated device framework should use vfio_info_add_capability() to add capabilities. Introduced this function to reduce code duplication in vendor drivers. Signed-off-by: Kirti Wankhede <kwankhede@nvidia.com> Signed-off-by: Neo Jia <cjia@nvidia.com> Change-Id: I6fca329fa2291f37a2c859d0bc97574d9e2ce1a6 --- drivers/vfio/vfio.c | 61 +++++++++++++++++++++++++++++++++++++++++++++++++++- include/linux/vfio.h | 3 +++ 2 files changed, 63 insertions(+), 1 deletion(-) diff --git a/drivers/vfio/vfio.c b/drivers/vfio/vfio.c index ff05ac6b1e90..54d3dd71b783 100644 --- a/drivers/vfio/vfio.c +++ b/drivers/vfio/vfio.c @@ -1797,7 +1797,66 @@ void vfio_info_cap_shift(struct vfio_info_cap *caps, size_t offset) for (tmp = caps->buf; tmp->next; tmp = (void *)tmp + tmp->next - offset) tmp->next += offset; } -EXPORT_SYMBOL_GPL(vfio_info_cap_shift); +EXPORT_SYMBOL(vfio_info_cap_shift); + +static int sparse_mmap_cap(struct vfio_info_cap *caps, void *cap_type) +{ + struct vfio_info_cap_header *header; + struct vfio_region_info_cap_sparse_mmap *sparse_cap, *sparse = cap_type; + size_t size; + + size = sizeof(*sparse) + sparse->nr_areas * sizeof(*sparse->areas); + header = vfio_info_cap_add(caps, size, + VFIO_REGION_INFO_CAP_SPARSE_MMAP, 1); + if (IS_ERR(header)) + return PTR_ERR(header); + + sparse_cap = container_of(header, + struct vfio_region_info_cap_sparse_mmap, header); + sparse_cap->nr_areas = sparse->nr_areas; + memcpy(sparse_cap->areas, sparse->areas, + sparse->nr_areas * sizeof(*sparse->areas)); + return 0; +} + +static int region_type_cap(struct vfio_info_cap *caps, void *cap_type) +{ + struct vfio_info_cap_header *header; + struct vfio_region_info_cap_type *type_cap, *cap = cap_type; + + header = vfio_info_cap_add(caps, sizeof(*cap), + VFIO_REGION_INFO_CAP_TYPE, 1); + if (IS_ERR(header)) + return PTR_ERR(header); + + type_cap = container_of(header, struct vfio_region_info_cap_type, + header); + type_cap->type = cap->type; + type_cap->subtype = cap->subtype; + return 0; +} + +int vfio_info_add_capability(struct vfio_info_cap *caps, int cap_type_id, + void *cap_type) +{ + int ret = -EINVAL; + + if (!cap_type) + return 0; + + switch (cap_type_id) { + case VFIO_REGION_INFO_CAP_SPARSE_MMAP: + ret = sparse_mmap_cap(caps, cap_type); + break; + + case VFIO_REGION_INFO_CAP_TYPE: + ret = region_type_cap(caps, cap_type); + break; + } + + return ret; +} +EXPORT_SYMBOL(vfio_info_add_capability); /* diff --git a/include/linux/vfio.h b/include/linux/vfio.h index 4c91ce8bfaeb..8e2141d4601b 100644 --- a/include/linux/vfio.h +++ b/include/linux/vfio.h @@ -111,6 +111,9 @@ extern struct vfio_info_cap_header *vfio_info_cap_add( struct vfio_info_cap *caps, size_t size, u16 id, u16 version); extern void vfio_info_cap_shift(struct vfio_info_cap *caps, size_t offset); +extern int vfio_info_add_capability(struct vfio_info_cap *caps, + int cap_type_id, void *cap_type); + struct pci_dev; #ifdef CONFIG_EEH extern void vfio_spapr_pci_eeh_open(struct pci_dev *pdev); -- 2.7.0
WARNING: multiple messages have this Message-ID (diff)
From: Kirti Wankhede <kwankhede@nvidia.com> To: alex.williamson@redhat.com, pbonzini@redhat.com, kraxel@redhat.com, cjia@nvidia.com Cc: qemu-devel@nongnu.org, kvm@vger.kernel.org, kevin.tian@intel.com, jike.song@intel.com, bjsdjshi@linux.vnet.ibm.com, linux-kernel@vger.kernel.org, Kirti Wankhede <kwankhede@nvidia.com> Subject: [Qemu-devel] [PATCH v10 11/19] vfio: Introduce common function to add capabilities Date: Thu, 27 Oct 2016 02:59:18 +0530 [thread overview] Message-ID: <1477517366-27871-12-git-send-email-kwankhede@nvidia.com> (raw) In-Reply-To: <1477517366-27871-1-git-send-email-kwankhede@nvidia.com> Vendor driver using mediated device framework should use vfio_info_add_capability() to add capabilities. Introduced this function to reduce code duplication in vendor drivers. Signed-off-by: Kirti Wankhede <kwankhede@nvidia.com> Signed-off-by: Neo Jia <cjia@nvidia.com> Change-Id: I6fca329fa2291f37a2c859d0bc97574d9e2ce1a6 --- drivers/vfio/vfio.c | 61 +++++++++++++++++++++++++++++++++++++++++++++++++++- include/linux/vfio.h | 3 +++ 2 files changed, 63 insertions(+), 1 deletion(-) diff --git a/drivers/vfio/vfio.c b/drivers/vfio/vfio.c index ff05ac6b1e90..54d3dd71b783 100644 --- a/drivers/vfio/vfio.c +++ b/drivers/vfio/vfio.c @@ -1797,7 +1797,66 @@ void vfio_info_cap_shift(struct vfio_info_cap *caps, size_t offset) for (tmp = caps->buf; tmp->next; tmp = (void *)tmp + tmp->next - offset) tmp->next += offset; } -EXPORT_SYMBOL_GPL(vfio_info_cap_shift); +EXPORT_SYMBOL(vfio_info_cap_shift); + +static int sparse_mmap_cap(struct vfio_info_cap *caps, void *cap_type) +{ + struct vfio_info_cap_header *header; + struct vfio_region_info_cap_sparse_mmap *sparse_cap, *sparse = cap_type; + size_t size; + + size = sizeof(*sparse) + sparse->nr_areas * sizeof(*sparse->areas); + header = vfio_info_cap_add(caps, size, + VFIO_REGION_INFO_CAP_SPARSE_MMAP, 1); + if (IS_ERR(header)) + return PTR_ERR(header); + + sparse_cap = container_of(header, + struct vfio_region_info_cap_sparse_mmap, header); + sparse_cap->nr_areas = sparse->nr_areas; + memcpy(sparse_cap->areas, sparse->areas, + sparse->nr_areas * sizeof(*sparse->areas)); + return 0; +} + +static int region_type_cap(struct vfio_info_cap *caps, void *cap_type) +{ + struct vfio_info_cap_header *header; + struct vfio_region_info_cap_type *type_cap, *cap = cap_type; + + header = vfio_info_cap_add(caps, sizeof(*cap), + VFIO_REGION_INFO_CAP_TYPE, 1); + if (IS_ERR(header)) + return PTR_ERR(header); + + type_cap = container_of(header, struct vfio_region_info_cap_type, + header); + type_cap->type = cap->type; + type_cap->subtype = cap->subtype; + return 0; +} + +int vfio_info_add_capability(struct vfio_info_cap *caps, int cap_type_id, + void *cap_type) +{ + int ret = -EINVAL; + + if (!cap_type) + return 0; + + switch (cap_type_id) { + case VFIO_REGION_INFO_CAP_SPARSE_MMAP: + ret = sparse_mmap_cap(caps, cap_type); + break; + + case VFIO_REGION_INFO_CAP_TYPE: + ret = region_type_cap(caps, cap_type); + break; + } + + return ret; +} +EXPORT_SYMBOL(vfio_info_add_capability); /* diff --git a/include/linux/vfio.h b/include/linux/vfio.h index 4c91ce8bfaeb..8e2141d4601b 100644 --- a/include/linux/vfio.h +++ b/include/linux/vfio.h @@ -111,6 +111,9 @@ extern struct vfio_info_cap_header *vfio_info_cap_add( struct vfio_info_cap *caps, size_t size, u16 id, u16 version); extern void vfio_info_cap_shift(struct vfio_info_cap *caps, size_t offset); +extern int vfio_info_add_capability(struct vfio_info_cap *caps, + int cap_type_id, void *cap_type); + struct pci_dev; #ifdef CONFIG_EEH extern void vfio_spapr_pci_eeh_open(struct pci_dev *pdev); -- 2.7.0
next prev parent reply other threads:[~2016-10-26 21:32 UTC|newest] Thread overview: 119+ messages / expand[flat|nested] mbox.gz Atom feed top 2016-10-26 21:29 [PATCH v10 00/19] Add Mediated device support Kirti Wankhede 2016-10-26 21:29 ` [Qemu-devel] " Kirti Wankhede 2016-10-26 21:29 ` [PATCH v10 01/19] vfio: Mediated device Core driver Kirti Wankhede 2016-10-26 21:29 ` [Qemu-devel] " Kirti Wankhede 2016-10-29 4:30 ` Jike Song 2016-10-29 4:30 ` [Qemu-devel] " Jike Song 2016-10-29 10:06 ` Kirti Wankhede 2016-10-29 10:06 ` [Qemu-devel] " Kirti Wankhede 2016-10-29 18:11 ` Jike Song 2016-10-29 18:11 ` [Qemu-devel] " Jike Song 2016-11-02 7:59 ` Kirti Wankhede 2016-11-02 7:59 ` [Qemu-devel] " Kirti Wankhede 2016-11-02 10:31 ` Jike Song 2016-11-01 3:08 ` Jike Song 2016-11-01 3:08 ` [Qemu-devel] " Jike Song 2016-11-01 3:44 ` Alex Williamson 2016-11-01 3:44 ` [Qemu-devel] " Alex Williamson 2016-11-01 5:28 ` Jike Song 2016-11-01 5:28 ` [Qemu-devel] " Jike Song 2016-10-26 21:29 ` [PATCH v10 02/19] vfio: VFIO based driver for Mediated devices Kirti Wankhede 2016-10-26 21:29 ` [Qemu-devel] " Kirti Wankhede 2016-10-26 21:29 ` Kirti Wankhede 2016-11-02 10:39 ` Jike Song 2016-11-02 10:39 ` [Qemu-devel] " Jike Song 2016-10-26 21:29 ` [PATCH v10 03/19] vfio: Rearrange functions to get vfio_group from dev Kirti Wankhede 2016-10-26 21:29 ` [Qemu-devel] " Kirti Wankhede 2016-10-26 21:29 ` Kirti Wankhede 2016-11-02 10:41 ` Jike Song 2016-11-02 10:41 ` [Qemu-devel] " Jike Song 2016-10-26 21:29 ` [PATCH v10 04/19] vfio: Common function to increment container_users Kirti Wankhede 2016-10-26 21:29 ` [Qemu-devel] " Kirti Wankhede 2016-11-02 11:34 ` Jike Song 2016-11-02 11:34 ` [Qemu-devel] " Jike Song 2016-10-26 21:29 ` [PATCH v10 05/19] vfio iommu: Added pin and unpin callback functions to vfio_iommu_driver_ops Kirti Wankhede 2016-10-26 21:29 ` [Qemu-devel] " Kirti Wankhede 2016-11-01 8:07 ` Jike Song 2016-11-01 8:07 ` [Qemu-devel] " Jike Song 2016-10-26 21:29 ` [PATCH v10 06/19] vfio iommu type1: Update arguments of vfio_lock_acct Kirti Wankhede 2016-10-26 21:29 ` [Qemu-devel] " Kirti Wankhede 2016-10-26 21:29 ` [PATCH v10 07/19] vfio iommu type1: Update argument of vaddr_get_pfn() Kirti Wankhede 2016-10-26 21:29 ` [Qemu-devel] " Kirti Wankhede 2016-10-27 12:11 ` Jike Song 2016-10-27 12:11 ` [Qemu-devel] " Jike Song 2016-10-27 12:11 ` Jike Song 2016-10-27 12:24 ` Kirti Wankhede 2016-10-27 12:24 ` [Qemu-devel] " Kirti Wankhede 2016-10-27 12:24 ` Kirti Wankhede 2016-10-28 6:01 ` Jike Song 2016-10-28 6:01 ` [Qemu-devel] " Jike Song 2016-11-02 8:06 ` Kirti Wankhede 2016-11-02 8:06 ` [Qemu-devel] " Kirti Wankhede 2016-10-26 21:29 ` [PATCH v10 08/19] vfio iommu type1: Add find_iommu_group() function Kirti Wankhede 2016-10-26 21:29 ` [Qemu-devel] " Kirti Wankhede 2016-11-02 14:13 ` Jike Song 2016-11-02 14:13 ` [Qemu-devel] " Jike Song 2016-10-26 21:29 ` [PATCH v10 09/19] vfio iommu type1: Add support for mediated devices Kirti Wankhede 2016-10-26 21:29 ` [Qemu-devel] " Kirti Wankhede 2016-10-27 23:01 ` Alex Williamson 2016-10-27 23:01 ` [Qemu-devel] " Alex Williamson 2016-11-02 13:29 ` Jike Song 2016-11-02 13:29 ` [Qemu-devel] " Jike Song 2016-10-26 21:29 ` [PATCH v10 10/19] vfio iommu: Add blocking notifier to notify DMA_UNMAP Kirti Wankhede 2016-10-26 21:29 ` [Qemu-devel] " Kirti Wankhede 2016-10-28 7:33 ` Jike Song 2016-10-28 7:33 ` [Qemu-devel] " Jike Song 2016-10-28 12:38 ` Kirti Wankhede 2016-10-28 12:38 ` [Qemu-devel] " Kirti Wankhede 2016-10-28 12:40 ` Alex Williamson 2016-10-28 12:40 ` [Qemu-devel] " Alex Williamson 2016-10-28 20:02 ` Kirti Wankhede 2016-10-28 20:02 ` [Qemu-devel] " Kirti Wankhede 2016-10-28 20:33 ` Alex Williamson 2016-10-28 20:33 ` [Qemu-devel] " Alex Williamson 2016-10-29 10:37 ` Kirti Wankhede 2016-10-29 10:37 ` [Qemu-devel] " Kirti Wankhede 2016-10-29 14:03 ` Alex Williamson 2016-10-29 14:03 ` [Qemu-devel] " Alex Williamson 2016-10-29 14:03 ` Alex Williamson 2016-11-01 3:45 ` [Qemu-devel] " Dong Jia Shi 2016-11-01 7:47 ` Kirti Wankhede 2016-11-01 7:47 ` [Qemu-devel] " Kirti Wankhede 2016-11-01 8:33 ` Dong Jia Shi 2016-11-01 8:33 ` Dong Jia Shi 2016-11-01 3:45 ` Dong Jia Shi 2016-10-31 3:50 ` Jike Song 2016-10-31 3:50 ` [Qemu-devel] " Jike Song 2016-10-31 5:59 ` Kirti Wankhede 2016-10-31 5:59 ` [Qemu-devel] " Kirti Wankhede 2016-10-31 6:05 ` Jike Song 2016-10-31 6:05 ` [Qemu-devel] " Jike Song 2016-10-26 21:29 ` Kirti Wankhede [this message] 2016-10-26 21:29 ` [Qemu-devel] [PATCH v10 11/19] vfio: Introduce common function to add capabilities Kirti Wankhede 2016-10-26 21:29 ` [PATCH v10 12/19] vfio_pci: Update vfio_pci to use vfio_info_add_capability() Kirti Wankhede 2016-10-26 21:29 ` [Qemu-devel] " Kirti Wankhede 2016-10-26 21:29 ` [PATCH v10 13/19] vfio: Introduce vfio_set_irqs_validate_and_prepare() Kirti Wankhede 2016-10-26 21:29 ` [Qemu-devel] " Kirti Wankhede 2016-10-26 21:29 ` [PATCH v10 14/19] vfio_pci: Updated to use vfio_set_irqs_validate_and_prepare() Kirti Wankhede 2016-10-26 21:29 ` [Qemu-devel] " Kirti Wankhede 2016-10-26 21:29 ` [PATCH v10 15/19] vfio_platform: " Kirti Wankhede 2016-10-26 21:29 ` [Qemu-devel] " Kirti Wankhede 2016-10-26 21:29 ` [PATCH v10 16/19] vfio: Define device_api strings Kirti Wankhede 2016-10-26 21:29 ` [Qemu-devel] " Kirti Wankhede 2016-10-26 21:29 ` [PATCH v10 17/19] docs: Add Documentation for Mediated devices Kirti Wankhede 2016-10-26 21:29 ` [Qemu-devel] " Kirti Wankhede 2016-10-26 21:29 ` [PATCH v10 18/19] docs: Sysfs ABI for mediated device framework Kirti Wankhede 2016-10-26 21:29 ` [Qemu-devel] " Kirti Wankhede 2016-10-31 7:19 ` Jike Song 2016-10-31 7:19 ` [Qemu-devel] " Jike Song 2016-11-02 7:55 ` Kirti Wankhede 2016-11-02 7:55 ` [Qemu-devel] " Kirti Wankhede 2016-10-26 21:29 ` [PATCH v10 19/19] docs: Sample driver to demonstrate how to use Mediated " Kirti Wankhede 2016-10-26 21:29 ` [Qemu-devel] " Kirti Wankhede 2016-10-27 14:29 ` Jonathan Corbet 2016-10-27 14:29 ` [Qemu-devel] " Jonathan Corbet 2016-11-01 8:32 ` [PATCH v10 00/19] Add Mediated device support Jike Song 2016-11-01 8:32 ` [Qemu-devel] " Jike Song 2016-11-01 15:24 ` Gerd Hoffmann 2016-11-01 15:24 ` [Qemu-devel] " Gerd Hoffmann 2016-11-02 1:01 ` Jike Song
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