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On Tue, Apr 22, 2014 at 11:11:50AM +0800, Jason Wang wrote: > On 04/21/2014 11:11 PM, Amos Kong wrote: > > Currently ethtool returns zero if there is no virtqueue or MQ isn't > > support, we should return -ENOTSUPP to notice user. > > > > Signed-off-by: Amos Kong <akong at redhat.com> > > --- > > drivers/net/virtio_net.c | 2 +- > > 1 file changed, 1 insertion(+), 1 deletion(-) > > > > diff --git a/drivers/net/virtio_net.c b/drivers/net/virtio_net.c > > i...

On Tue, Apr 22, 2014 at 11:11:50AM +0800, Jason Wang wrote: > On 04/21/2014 11:11 PM, Amos Kong wrote: > > Currently ethtool returns zero if there is no virtqueue or MQ isn't > > support, we should return -ENOTSUPP to notice user. > > > > Signed-off-by: Amos Kong <akong at redhat.com> > > --- > > drivers/net/virtio_net.c | 2 +- > > 1 file changed, 1 insertion(+), 1 deletion(-) > > > > diff --git a/drivers/net/virtio_net.c b/drivers/net/virtio_net.c > > i...

Currently ethtool returns zero if there is no virtqueue or MQ isn't support, we should return -ENOTSUPP to notice user. Signed-off-by: Amos Kong <akong at redhat.com> --- drivers/net/virtio_net.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/net/virtio_net.c b/drivers/net/virtio_net.c index 8a852b5..eaf8266 100644 --- a/drivers/net/virtio_net.c +++ b/drivers/net/...

Currently ethtool returns zero if there is no virtqueue or MQ isn't support, we should return -ENOTSUPP to notice user. Signed-off-by: Amos Kong <akong at redhat.com> --- drivers/net/virtio_net.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/net/virtio_net.c b/drivers/net/virtio_net.c index 8a852b5..eaf8266 100644 --- a/drivers/net/virtio_net.c +++ b/drivers/net/...

...six byte range locking = fcntl(2) SMB locks (mandatory) = ctdb using brlock.tdb oplocks = fcntl(2) using F_SETLEASE Am I correct or I am missing something? I hope only SMB range locks are implemented with tdb, all else are being used from filesystem. What happens if flock or fcntl returns -ENOTSUPP, will samba start using other tdb files (locking.tdb) for that or will it say "not supported" to CIFS client? Thanks, Rajesh

...traeger <borntraeger at de.ibm.com> This path introduces handling of sie intercepts in three flavors: Intercepts are either handled completely in-kernel by kvm_handle_sie_intercept(), or passed to userspace with corresponding data in struct kvm_run in case kvm_handle_sie_intercept() returns -ENOTSUPP. In case of partial execution in kernel with the need of userspace support, kvm_handle_sie_intercept() may choose to set up struct kvm_run and return -EREMOTE. The trivial intercept reasons are handled in this patch: handle_noop() just does nothing for intercepts that don't require our support...

...traeger <borntraeger at de.ibm.com> This path introduces handling of sie intercepts in three flavors: Intercepts are either handled completely in-kernel by kvm_handle_sie_intercept(), or passed to userspace with corresponding data in struct kvm_run in case kvm_handle_sie_intercept() returns -ENOTSUPP. In case of partial execution in kernel with the need of userspace support, kvm_handle_sie_intercept() may choose to set up struct kvm_run and return -EREMOTE. The trivial intercept reasons are handled in this patch: handle_noop() just does nothing for intercepts that don't require our support...

...@@ static int handle_noop(struct kvm_vcpu * static int handle_stop(struct kvm_vcpu *vcpu) { + int rc; + vcpu->stat.exit_stop_request++; - VCPU_EVENT(vcpu, 3, "%s", "cpu stopped"); atomic_clear_mask(CPUSTAT_RUNNING, &vcpu->arch.sie_block->cpuflags); - return -ENOTSUPP; + spin_lock_bh(&vcpu->arch.local_int.lock); + if (vcpu->arch.local_int.action_bits & ACTION_STORE_ON_STOP) { + vcpu->arch.local_int.action_bits &= ~ACTION_STORE_ON_STOP; + rc = __kvm_s390_vcpu_store_status(vcpu, + KVM_S390_STORE_STATUS_NOADDR); + if (rc >= 0) +...

Fix issues Eric found in the original patch: https://www.redhat.com/archives/libguestfs/2018-July/msg00072.html - When handling ENODEV, the caller is expecting ENOTSUPP to trigger fallback. - ENODEV should be ignored in file_trim. Tested only on Fedora 28. --- plugins/file/file.c | 33 ++++++++++++++++++++++++--------- 1 file changed, 24 insertions(+), 9 deletions(-) diff --git a/plugins/file/file.c b/plugins/file/file.c index a7c07fb..4210adb 100644 --- a/pl...

...flags & VM_SHARED) == 0) > + return -EINVAL; > + if (vma->vm_flags & VM_READ) > + return -EINVAL; > + if (index > 65535) > + return -EINVAL; > + if (!ops->get_vq_notification) > + return -ENOTSUPP; > + > + /* To be safe and easily modelled by userspace, We only > + * support the doorbell which sits on the page boundary and > + * does not share the page with other registers. > + */ > + notify = ops->get_vq_notification(vdpa, index); > +...

On 04/21/2014 11:11 PM, Amos Kong wrote: > Currently ethtool returns zero if there is no virtqueue or MQ isn't > support, we should return -ENOTSUPP to notice user. > > Signed-off-by: Amos Kong <akong at redhat.com> > --- > drivers/net/virtio_net.c | 2 +- > 1 file changed, 1 insertion(+), 1 deletion(-) > > diff --git a/drivers/net/virtio_net.c b/drivers/net/virtio_net.c > index 8a852b5..eaf8266 100644 > --- a/...

On 04/22/2014 11:23 AM, Amos Kong wrote: > On Tue, Apr 22, 2014 at 11:11:50AM +0800, Jason Wang wrote: >> On 04/21/2014 11:11 PM, Amos Kong wrote: >>> Currently ethtool returns zero if there is no virtqueue or MQ isn't >>> support, we should return -ENOTSUPP to notice user. >>> >>> Signed-off-by: Amos Kong <akong at redhat.com> >>> --- >>> drivers/net/virtio_net.c | 2 +- >>> 1 file changed, 1 insertion(+), 1 deletion(-) >>> >>> diff --git a/drivers/net/virtio_net.c b/drivers/net/vir...

...t;vm_pgoff; + + if (vma->vm_end - vma->vm_start != PAGE_SIZE) + return -EINVAL; + if ((vma->vm_flags & VM_SHARED) == 0) + return -EINVAL; + if (vma->vm_flags & VM_READ) + return -EINVAL; + if (index > 65535) + return -EINVAL; + if (!ops->get_vq_notification) + return -ENOTSUPP; + + /* To be safe and easily modelled by userspace, We only + * support the doorbell which sits on the page boundary and + * does not share the page with other registers. + */ + notify = ops->get_vq_notification(vdpa, index); + if (notify.addr & (PAGE_SIZE - 1)) + return -EINVAL; + if (...

...a->vm_flags & VM_SHARED) == 0) >> +??????? return -EINVAL; >> +??? if (vma->vm_flags & VM_READ) >> +??????? return -EINVAL; >> +??? if (index > 65535) >> +??????? return -EINVAL; >> +??? if (!ops->get_vq_notification) >> +??????? return -ENOTSUPP; >> + >> +??? /* To be safe and easily modelled by userspace, We only >> +???? * support the doorbell which sits on the page boundary and >> +???? * does not share the page with other registers. >> +???? */ >> +??? notify = ops->get_vq_notification(vdpa, index...

..., unsigned int cmd, + void __user *argp) +{ + struct mdev_device *mdev = m->mdev; + const struct virtio_mdev_device_ops *ops = mdev_get_vhost_ops(mdev); + + switch (m->virtio_id) { + case VIRTIO_ID_NET: + switch (cmd) { + case VHOST_MDEV_NET_CTRL: + if (!ops->net.ctrl) + return -ENOTSUPP; + return ops->net.ctrl(mdev, argp); + } + break; + } + + return -ENOIOCTLCMD; +} + static int vhost_mdev_open(void *device_data) { struct vhost_mdev *m = device_data; @@ -460,8 +490,11 @@ static long vhost_mdev_unlocked_ioctl(void *device_data, * VHOST_SET_LOG_FD are not used yet....

..., unsigned int cmd, + void __user *argp) +{ + struct mdev_device *mdev = m->mdev; + const struct virtio_mdev_device_ops *ops = mdev_get_vhost_ops(mdev); + + switch (m->virtio_id) { + case VIRTIO_ID_NET: + switch (cmd) { + case VHOST_MDEV_NET_CTRL: + if (!ops->net.ctrl) + return -ENOTSUPP; + return ops->net.ctrl(mdev, argp); + } + break; + } + + return -ENOIOCTLCMD; +} + static int vhost_mdev_open(void *device_data) { struct vhost_mdev *m = device_data; @@ -460,8 +490,11 @@ static long vhost_mdev_unlocked_ioctl(void *device_data, * VHOST_SET_LOG_FD are not used yet....

...arch.guest_gprs[reg] & 0xffff; + + VCPU_EVENT(vcpu, 5, "diag ipl functions, subcode %lx", subcode); + switch (subcode) { + case 3: + vcpu->run->s390_reset_flags = KVM_S390_RESET_CLEAR; + break; + case 4: + vcpu->run->s390_reset_flags = 0; + break; + default: + return -ENOTSUPP; + } + + atomic_clear_mask(CPUSTAT_RUNNING, &vcpu->arch.sie_block->cpuflags); + vcpu->run->s390_reset_flags |= KVM_S390_RESET_SUBSYSTEM; + vcpu->run->s390_reset_flags |= KVM_S390_RESET_IPL; + vcpu->run->s390_reset_flags |= KVM_S390_RESET_CPU_INIT; + vcpu->run->exit...

...>> 28; + int disp2 = ((vcpu->arch.sie_block->ipb & 0x0fff0000) >> 16) + + ((vcpu->arch.sie_block->ipb & 0xff00) << 4); + u64 useraddr; + int reg, rc; + + vcpu->stat.instruction_lctg++; + if ((vcpu->arch.sie_block->ipb & 0xff) != 0x2f) + return -ENOTSUPP; + + useraddr = disp2; + if (base2) + useraddr += vcpu->arch.guest_gprs[base2]; + + reg = reg1; + + VCPU_EVENT(vcpu, 5, "lctg r1:%x, r3:%x,b2:%x,d2:%x", reg1, reg3, base2, + disp2); + + do { + rc = get_guest_u64(vcpu, useraddr, + &vcpu->arch.sie_block->gcr[reg]); + i...

Hi all: This series introduce basic functionality of doorbell mapping support for vhost-vDPA. Userspace program may use mmap() to map a the doorbell of a specific virtqueue into its address space. This is help to reudce the syscall or vmexit overhead. A new vdpa_config_ops was introduced to report the location of the doorbell, vhost_vdpa may then choose to map the doorbell when: - The doorbell

Hi all: This series introduce basic functionality of doorbell mapping support for vhost-vDPA. Userspace program may use mmap() to map a the doorbell of a specific virtqueue into its address space. This is help to reudce the syscall or vmexit overhead. A new vdpa_config_ops was introduced to report the location of the doorbell, vhost_vdpa may then choose to map the doorbell when: - The doorbell