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virtio: fixes on top of 4.3-rc1

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This fixes the virtio-test tool, and improves
 the error handling for virtio-ccw.
 
 Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
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Merge tag 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mst/vhost

Pull virtio fixes and cleanups from Michael Tsirkin:
 "This fixes the virtio-test tool, and improves the error handling for
  virtio-ccw"

* tag 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mst/vhost:
  virtio/s390: handle failures of READ_VQ_CONF ccw
  tools/virtio: propagate V=X to kernel build
  vhost: move features to core
  tools/virtio: fix build after 4.2 changes
This commit is contained in:
Linus Torvalds 2015-09-18 09:28:20 -07:00
commit 00ade1f553
9 changed files with 31 additions and 8 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

10
drivers/s390/virtio/virtio_ccw.c
View File

@ -400,12 +400,16 @@ static bool virtio_ccw_kvm_notify(struct virtqueue *vq)
static int virtio_ccw_read_vq_conf(struct virtio_ccw_device *vcdev,
struct ccw1 *ccw, int index)
{
int ret;
vcdev->config_block->index = index;
ccw->cmd_code = CCW_CMD_READ_VQ_CONF;
ccw->flags = 0;
ccw->count = sizeof(struct vq_config_block);
ccw->cda = (__u32)(unsigned long)(vcdev->config_block);
ccw_io_helper(vcdev, ccw, VIRTIO_CCW_DOING_READ_VQ_CONF);
ret = ccw_io_helper(vcdev, ccw, VIRTIO_CCW_DOING_READ_VQ_CONF);
if (ret)
return ret;
return vcdev->config_block->num;
}
@ -503,6 +507,10 @@ static struct virtqueue *virtio_ccw_setup_vq(struct virtio_device *vdev,
goto out_err;
}
info->num = virtio_ccw_read_vq_conf(vcdev, ccw, i);
if (info->num < 0) {
err = info->num;
goto out_err;
}
size = PAGE_ALIGN(vring_size(info->num, KVM_VIRTIO_CCW_RING_ALIGN));
info->queue = alloc_pages_exact(size, GFP_KERNEL | __GFP_ZERO);
if (info->queue == NULL) {

3
drivers/vhost/net.c
View File

@ -61,8 +61,7 @@ MODULE_PARM_DESC(experimental_zcopytx, "Enable Zero Copy TX;"
enum {
VHOST_NET_FEATURES = VHOST_FEATURES |
(1ULL << VHOST_NET_F_VIRTIO_NET_HDR) |
(1ULL << VIRTIO_NET_F_MRG_RXBUF) |
(1ULL << VIRTIO_F_VERSION_1),
(1ULL << VIRTIO_NET_F_MRG_RXBUF)
};
enum {

4
drivers/vhost/scsi.c
View File

@ -166,9 +166,7 @@ enum {
/* Note: can't set VIRTIO_F_VERSION_1 yet, since that implies ANY_LAYOUT. */
enum {
VHOST_SCSI_FEATURES = VHOST_FEATURES | (1ULL << VIRTIO_SCSI_F_HOTPLUG) |
(1ULL << VIRTIO_SCSI_F_T10_PI) |
(1ULL << VIRTIO_F_ANY_LAYOUT) |
(1ULL << VIRTIO_F_VERSION_1)
(1ULL << VIRTIO_SCSI_F_T10_PI)
};
#define VHOST_SCSI_MAX_TARGET 256

3
drivers/vhost/test.c
View File

@ -277,10 +277,13 @@ static long vhost_test_ioctl(struct file *f, unsigned int ioctl,
return -EFAULT;
return 0;
case VHOST_SET_FEATURES:
printk(KERN_ERR "1\n");
if (copy_from_user(&features, featurep, sizeof features))
return -EFAULT;
printk(KERN_ERR "2\n");
if (features & ~VHOST_FEATURES)
return -EOPNOTSUPP;
printk(KERN_ERR "3\n");
return vhost_test_set_features(n, features);
case VHOST_RESET_OWNER:
return vhost_test_reset_owner(n);

4
drivers/vhost/vhost.h
View File

@ -173,7 +173,9 @@ enum {
VHOST_FEATURES = (1ULL << VIRTIO_F_NOTIFY_ON_EMPTY) |
(1ULL << VIRTIO_RING_F_INDIRECT_DESC) |
(1ULL << VIRTIO_RING_F_EVENT_IDX) |
(1ULL << VHOST_F_LOG_ALL),
(1ULL << VHOST_F_LOG_ALL) |
(1ULL << VIRTIO_F_ANY_LAYOUT) |
(1ULL << VIRTIO_F_VERSION_1)
};
static inline bool vhost_has_feature(struct vhost_virtqueue *vq, int bit)

2
tools/virtio/Makefile
View File

@ -6,7 +6,7 @@ vringh_test: vringh_test.o vringh.o virtio_ring.o
CFLAGS += -g -O2 -Werror -Wall -I. -I../include/ -I ../../usr/include/ -Wno-pointer-sign -fno-strict-overflow -fno-strict-aliasing -fno-common -MMD -U_FORTIFY_SOURCE
vpath %.c ../../drivers/virtio ../../drivers/vhost
mod:
${MAKE} -C `pwd`/../.. M=`pwd`/vhost_test
${MAKE} -C `pwd`/../.. M=`pwd`/vhost_test V=${V}
.PHONY: all test mod clean
clean:
${RM} *.o vringh_test virtio_test vhost_test/*.o vhost_test/.*.cmd \

2
tools/virtio/asm/barrier.h
View File

@ -3,6 +3,8 @@
#define mb() __sync_synchronize()
#define smp_mb() mb()
# define dma_rmb() barrier()
# define dma_wmb() barrier()
# define smp_rmb() barrier()
# define smp_wmb() barrier()
/* Weak barriers should be used. If not - it's a bug */

3
tools/virtio/linux/export.h Normal file
View File

@ -0,0 +1,3 @@
#define EXPORT_SYMBOL_GPL(sym) extern typeof(sym) sym
#define EXPORT_SYMBOL(sym) extern typeof(sym) sym

8
tools/virtio/linux/kernel.h
View File

@ -22,6 +22,7 @@
typedef unsigned long long dma_addr_t;
typedef size_t __kernel_size_t;
typedef unsigned int __wsum;
struct page {
unsigned long long dummy;
@ -47,6 +48,13 @@ static inline void *kmalloc(size_t s, gfp_t gfp)
return __kmalloc_fake;
return malloc(s);
}
static inline void *kzalloc(size_t s, gfp_t gfp)
{
void *p = kmalloc(s, gfp);
memset(p, 0, s);
return p;
}
static inline void kfree(void *p)
{