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libqos: drop duplicated virtio_ring.h bit definitions

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Note that virtio_ring.h defines feature bits using their bit number:

  #define VIRTIO_RING_F_INDIRECT_DESC     28

On the other hand libqos virtio.h uses the bit mask:

  #define QVIRTIO_F_RING_INDIRECT_DESC    0x10000000

The patch makes the necessary adjustments.

I have used "1u << BITMASK" instead of "1ULL << BITMASK" because the
64-bit feature fields are not implemented in libqos virtio.

Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
Message-id: 1462798061-30382-5-git-send-email-stefanha@redhat.com
This commit is contained in:
Stefan Hajnoczi 2016-05-09 13:47:37 +01:00
parent 1373a4c256
commit ee3b850a70
6 changed files with 27 additions and 33 deletions
Download patch file Download diff file Expand all files Collapse all files

5
tests/libqos/virtio-mmio.c
View file

@ -13,6 +13,7 @@
#include "libqos/virtio-mmio.h"
#include "libqos/malloc.h"
#include "libqos/malloc-generic.h"
#include "standard-headers/linux/virtio_ring.h"
static uint8_t qvirtio_mmio_config_readb(QVirtioDevice *d, uint64_t addr)
{
@ -135,8 +136,8 @@ static QVirtQueue *qvirtio_mmio_virtqueue_setup(QVirtioDevice *d,
vq->free_head = 0;
vq->num_free = vq->size;
vq->align = dev->page_size;
vq->indirect = (dev->features & QVIRTIO_F_RING_INDIRECT_DESC) != 0;
vq->event = (dev->features & QVIRTIO_F_RING_EVENT_IDX) != 0;
vq->indirect = (dev->features & (1u << VIRTIO_RING_F_INDIRECT_DESC)) != 0;
vq->event = (dev->features & (1u << VIRTIO_RING_F_EVENT_IDX)) != 0;
writel(dev->addr + QVIRTIO_MMIO_QUEUE_NUM, vq->size);

5
tests/libqos/virtio-pci.c
View file

@ -15,6 +15,7 @@
#include "libqos/pci-pc.h"
#include "libqos/malloc.h"
#include "libqos/malloc-pc.h"
#include "standard-headers/linux/virtio_ring.h"
#include "hw/pci/pci.h"
#include "hw/pci/pci_regs.h"
@ -212,8 +213,8 @@ static QVirtQueue *qvirtio_pci_virtqueue_setup(QVirtioDevice *d,
vqpci->vq.free_head = 0;
vqpci->vq.num_free = vqpci->vq.size;
vqpci->vq.align = QVIRTIO_PCI_ALIGN;
vqpci->vq.indirect = (feat & QVIRTIO_F_RING_INDIRECT_DESC) != 0;
vqpci->vq.event = (feat & QVIRTIO_F_RING_EVENT_IDX) != 0;
vqpci->vq.indirect = (feat & (1u << VIRTIO_RING_F_INDIRECT_DESC)) != 0;
vqpci->vq.event = (feat & (1u << VIRTIO_RING_F_EVENT_IDX)) != 0;
vqpci->msix_entry = -1;
vqpci->msix_addr = 0;

13
tests/libqos/virtio.c
View file

@ -11,6 +11,7 @@
#include "libqtest.h"
#include "libqos/virtio.h"
#include "standard-headers/linux/virtio_config.h"
#include "standard-headers/linux/virtio_ring.h"
uint8_t qvirtio_config_readb(const QVirtioBus *bus, QVirtioDevice *d,
uint64_t addr)
@ -172,7 +173,7 @@ QVRingIndirectDesc *qvring_indirect_desc_setup(QVirtioDevice *d,
/* indirect->desc[i].addr */
writeq(indirect->desc + (16 * i), 0);
/* indirect->desc[i].flags */
writew(indirect->desc + (16 * i) + 12, QVRING_DESC_F_NEXT);
writew(indirect->desc + (16 * i) + 12, VRING_DESC_F_NEXT);
/* indirect->desc[i].next */
writew(indirect->desc + (16 * i) + 14, i + 1);
}
@ -190,7 +191,7 @@ void qvring_indirect_desc_add(QVRingIndirectDesc *indirect, uint64_t data,
flags = readw(indirect->desc + (16 * indirect->index) + 12);
if (write) {
flags |= QVRING_DESC_F_WRITE;
flags |= VRING_DESC_F_WRITE;
}
/* indirect->desc[indirect->index].addr */
@ -210,11 +211,11 @@ uint32_t qvirtqueue_add(QVirtQueue *vq, uint64_t data, uint32_t len, bool write,
vq->num_free--;
if (write) {
flags |= QVRING_DESC_F_WRITE;
flags |= VRING_DESC_F_WRITE;
}
if (next) {
flags |= QVRING_DESC_F_NEXT;
flags |= VRING_DESC_F_NEXT;
}
/* vq->desc[vq->free_head].addr */
@ -241,7 +242,7 @@ uint32_t qvirtqueue_add_indirect(QVirtQueue *vq, QVRingIndirectDesc *indirect)
writel(vq->desc + (16 * vq->free_head) + 8,
sizeof(QVRingDesc) * indirect->elem);
/* vq->desc[vq->free_head].flags */
writew(vq->desc + (16 * vq->free_head) + 12, QVRING_DESC_F_INDIRECT);
writew(vq->desc + (16 * vq->free_head) + 12, VRING_DESC_F_INDIRECT);
return vq->free_head++; /* Return and increase, in this order */
}
@ -267,7 +268,7 @@ void qvirtqueue_kick(const QVirtioBus *bus, QVirtioDevice *d, QVirtQueue *vq,
(sizeof(struct QVRingUsedElem) * vq->size));
/* < 1 because we add elements to avail queue one by one */
if ((flags & QVRING_USED_F_NO_NOTIFY) == 0 &&
if ((flags & VRING_USED_F_NO_NOTIFY) == 0 &&
(!vq->event || (uint16_t)(idx-avail_event) < 1)) {
bus->virtqueue_kick(d, vq);
}

14
tests/libqos/virtio.h
View file

@ -12,22 +12,8 @@
#include "libqos/malloc.h"
#define QVIRTIO_F_RING_INDIRECT_DESC 0x10000000
#define QVIRTIO_F_RING_EVENT_IDX 0x20000000
#define QVIRTIO_F_BAD_FEATURE 0x40000000
#define QVRING_DESC_F_NEXT 0x1
#define QVRING_DESC_F_WRITE 0x2
#define QVRING_DESC_F_INDIRECT 0x4
#define QVIRTIO_F_RING_INDIRECT_DESC 0x10000000
#define QVIRTIO_F_RING_EVENT_IDX 0x20000000
#define QVIRTIO_F_BAD_FEATURE 0x40000000
#define QVRING_AVAIL_F_NO_INTERRUPT 1
#define QVRING_USED_F_NO_NOTIFY 1
typedef struct QVirtioDevice {
/* Device type */
uint16_t device_type;