similar to: [vhost:vhost 22/22] vdpa_sim.c:undefined reference to `vringh_iov_push_iotlb'

tree: https://git.kernel.org/pub/scm/linux/kernel/git/mst/vhost.git vhost head: 38dd2ba72ece18ec8398c8ddd13cfb02870b0309 commit: 38dd2ba72ece18ec8398c8ddd13cfb02870b0309 [22/22] virtio/test: fix up after IOTLB changes config: riscv-allyesconfig (attached as .config) compiler: riscv64-linux-gcc (GCC) 9.3.0 reproduce: wget

tree: https://git.kernel.org/pub/scm/linux/kernel/git/mst/vhost.git vhost head: 076cb4adba3e2d7d3c25b72a1390b24ebfc58161 commit: 076cb4adba3e2d7d3c25b72a1390b24ebfc58161 [22/22] virtio/test: fix up after IOTLB changes config: m68k-allmodconfig (attached as .config) compiler: m68k-linux-gcc (GCC) 9.3.0 reproduce: wget

This patch implements a software vDPA networking device. The datapath is implemented through vringh and workqueue. The device has an on-chip IOMMU which translates IOVA to PA. For kernel virtio drivers, vDPA simulator driver provides dma_ops. For vhost driers, set_map() methods of vdpa_config_ops is implemented to accept mappings from vhost. Currently, vDPA device simulator will loopback TX

This patch implements a software vDPA networking device. The datapath is implemented through vringh and workqueue. The device has an on-chip IOMMU which translates IOVA to PA. For kernel virtio drivers, vDPA simulator driver provides dma_ops. For vhost driers, set_map() methods of vdpa_config_ops is implemented to accept mappings from vhost. Currently, vDPA device simulator will loopback TX

During randconfig build testing, I ran into a configuration that has CONFIG_VHOST=m, CONFIG_VHOST_IOTLB=m and CONFIG_VHOST_RING=y, which makes the iotlb implementation left out from vhost_ring, and in turn leads to a link failure of the vdpa_sim module: ERROR: modpost: "vringh_set_iotlb" [drivers/vdpa/vdpa_sim/vdpa_sim.ko] undefined! ERROR: modpost: "vringh_init_iotlb"

On Mon, Feb 10, 2020 at 11:56:08AM +0800, Jason Wang wrote: > This patch implements a software vDPA networking device. The datapath > is implemented through vringh and workqueue. The device has an on-chip > IOMMU which translates IOVA to PA. For kernel virtio drivers, vDPA > simulator driver provides dma_ops. For vhost driers, set_map() methods > of vdpa_config_ops is implemented to

On 2020/4/16 ??12:16, Randy Dunlap wrote: > On 4/14/20 10:22 PM, Stephen Rothwell wrote: >> Hi all, >> >> Changes since 20200414: >> > on x86_64: > > ERROR: modpost: "vringh_set_iotlb" [drivers/vdpa/vdpa_sim/vdpa_sim.ko] undefined! > ERROR: modpost: "vringh_init_iotlb" [drivers/vdpa/vdpa_sim/vdpa_sim.ko] undefined! > ERROR: modpost:

? 2023/1/19 17:14, Eugenio Perez Martin ??: > On Thu, Jan 19, 2023 at 4:16 AM Jason Wang <jasowang at redhat.com> wrote: >> On Thu, Jan 19, 2023 at 12:44 AM Eugenio P?rez <eperezma at redhat.com> wrote: >>> vdpasim_queue_ready calls vringh_init_iotlb, which resets split indexes. >>> But it can be called after setting a ring base with >>>

On Wed, Jan 18, 2023 at 05:43:57PM +0100, Eugenio P?rez wrote: > The use of set_vq_state is to indicate vdpa device the state of a virtqueue. > In the case of split, it means the avail_idx. This is mandatory for use > cases like live migration. > > However, vdpa_sim reset the vq state at vdpasim_queue_ready since it calls > vringh_init_iotlb. > > Also, to starting from

? 2023/3/21 23:48, Stefano Garzarella ??: > The new "use_va" module parameter (default: true) is used in > vdpa_alloc_device() to inform the vDPA framework that the device > supports VA. > > vringh is initialized to use VA only when "use_va" is true and the > user's mm has been bound. So, only when the bus supports user VA > (e.g. vhost-vdpa). > >

On Tue, Mar 21, 2023 at 11:48?PM Stefano Garzarella <sgarzare at redhat.com> wrote: > > The new "use_va" module parameter (default: true) is used in > vdpa_alloc_device() to inform the vDPA framework that the device > supports VA. > > vringh is initialized to use VA only when "use_va" is true and the > user's mm has been bound. So, only when the

On Thu, Mar 2, 2023 at 7:35?PM Stefano Garzarella <sgarzare at redhat.com> wrote: > > The new "use_va" module parameter (default: false) is used in > vdpa_alloc_device() to inform the vDPA framework that the device > supports VA. > > vringh is initialized to use VA only when "use_va" is true and the > user's mm has been bound. So, only when the

drivers/vdpa/vdpa_sim/vdpa_sim.c:92:6: warning: variable ?ret? set but not used [-Wunused-but-set-variable] Signed-off-by: YueHaibing <yuehaibing at huawei.com> --- drivers/vdpa/vdpa_sim/vdpa_sim.c | 15 +++++++-------- 1 file changed, 7 insertions(+), 8 deletions(-) diff --git a/drivers/vdpa/vdpa_sim/vdpa_sim.c b/drivers/vdpa/vdpa_sim/vdpa_sim.c index 7957d2d41fc4..01c456f7c1f7 100644

drivers/vdpa/vdpa_sim/vdpa_sim.c:92:6: warning: variable ?ret? set but not used [-Wunused-but-set-variable] Signed-off-by: YueHaibing <yuehaibing at huawei.com> --- drivers/vdpa/vdpa_sim/vdpa_sim.c | 15 +++++++-------- 1 file changed, 7 insertions(+), 8 deletions(-) diff --git a/drivers/vdpa/vdpa_sim/vdpa_sim.c b/drivers/vdpa/vdpa_sim/vdpa_sim.c index 7957d2d41fc4..01c456f7c1f7 100644

On Tue, Mar 21, 2023 at 11:43?PM Stefano Garzarella <sgarzare at redhat.com> wrote: > > vDPA supports the possibility to use user VA in the iotlb messages. > So, let's add support for user VA in vringh to use it in the vDPA > simulators. > > Signed-off-by: Stefano Garzarella <sgarzare at redhat.com> > --- > > Notes: > v3: > - refactored

On Fri, Apr 10, 2020 at 07:54:22PM +0800, YueHaibing wrote: > drivers/vdpa/vdpa_sim/vdpa_sim.c:92:6: warning: > variable ?ret? set but not used [-Wunused-but-set-variable] > > Signed-off-by: YueHaibing <yuehaibing at huawei.com> > --- Either this, or BUG_ON. Jason? > drivers/vdpa/vdpa_sim/vdpa_sim.c | 15 +++++++-------- > 1 file changed, 7 insertions(+), 8

vDPA supports the possibility to use user VA in the iotlb messages. So, let's add support for user VA in vringh to use it in the vDPA simulators. Signed-off-by: Stefano Garzarella <sgarzare at redhat.com> --- Notes: v3: - refactored avoiding code duplication [Eugenio] v2: - replace kmap_atomic() with kmap_local_page() [see previous patch] - fix cast warnings when

Hi all: This is an update version of vDPA support in kernel. vDPA device is a device that uses a datapath which complies with the virtio specifications with vendor specific control path. vDPA devices can be both physically located on the hardware or emulated by software. vDPA hardware devices are usually implemented through PCIE with the following types: - PF (Physical Function) - A single

On 4/14/20 10:22 PM, Stephen Rothwell wrote: > Hi all, > > Changes since 20200414: > on x86_64: ERROR: modpost: "vringh_set_iotlb" [drivers/vdpa/vdpa_sim/vdpa_sim.ko] undefined! ERROR: modpost: "vringh_init_iotlb" [drivers/vdpa/vdpa_sim/vdpa_sim.ko] undefined! ERROR: modpost: "vringh_iov_push_iotlb" [drivers/vdpa/vdpa_sim/vdpa_sim.ko] undefined! ERROR:

On 4/14/20 10:22 PM, Stephen Rothwell wrote: > Hi all, > > Changes since 20200414: > on x86_64: ERROR: modpost: "vringh_set_iotlb" [drivers/vdpa/vdpa_sim/vdpa_sim.ko] undefined! ERROR: modpost: "vringh_init_iotlb" [drivers/vdpa/vdpa_sim/vdpa_sim.ko] undefined! ERROR: modpost: "vringh_iov_push_iotlb" [drivers/vdpa/vdpa_sim/vdpa_sim.ko] undefined! ERROR: