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From: Jason Wang <jasowang@redhat.com>
To: qemu-devel@nongnu.org
Cc: Jason Wang <jasowang@redhat.com>,
	Anthony Liguori <aliguori@amazon.com>,
	"Michael S. Tsirkin" <mst@redhat.com>
Subject: [Qemu-devel] [PATCH V3 08/14] virtio-pci: switch to use bus specific queue limit
Date: Thu,  5 Mar 2015 13:48:45 +0800	[thread overview]
Message-ID: <1425534531-6305-9-git-send-email-jasowang@redhat.com> (raw)
In-Reply-To: <1425534531-6305-1-git-send-email-jasowang@redhat.com>

Instead of depending on a macro, switch to use a bus specific queue
limit.

Cc: Anthony Liguori <aliguori@amazon.com>
Cc: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Jason Wang <jasowang@redhat.com>
---
 hw/virtio/virtio-pci.c     | 12 +++++++-----
 include/hw/virtio/virtio.h |  1 -
 2 files changed, 7 insertions(+), 6 deletions(-)

diff --git a/hw/virtio/virtio-pci.c b/hw/virtio/virtio-pci.c
index 7fa8141..a261515 100644
--- a/hw/virtio/virtio-pci.c
+++ b/hw/virtio/virtio-pci.c
@@ -86,6 +86,8 @@
  * 12 is historical, and due to x86 page size. */
 #define VIRTIO_PCI_QUEUE_ADDR_SHIFT    12
 
+#define VIRTIO_PCI_QUEUE_MAX 64
+
 static void virtio_pci_bus_new(VirtioBusState *bus, size_t bus_size,
                                VirtIOPCIProxy *dev);
 
@@ -215,7 +217,7 @@ static void virtio_pci_start_ioeventfd(VirtIOPCIProxy *proxy)
         return;
     }
 
-    for (n = 0; n < VIRTIO_PCI_QUEUE_MAX; n++) {
+    for (n = 0; n < virtio_get_queue_max(vdev); n++) {
         if (!virtio_queue_get_num(vdev, n)) {
             continue;
         }
@@ -251,7 +253,7 @@ static void virtio_pci_stop_ioeventfd(VirtIOPCIProxy *proxy)
         return;
     }
 
-    for (n = 0; n < VIRTIO_PCI_QUEUE_MAX; n++) {
+    for (n = 0; n < virtio_get_queue_max(vdev); n++) {
         if (!virtio_queue_get_num(vdev, n)) {
             continue;
         }
@@ -287,11 +289,11 @@ static void virtio_ioport_write(void *opaque, uint32_t addr, uint32_t val)
             virtio_queue_set_addr(vdev, vdev->queue_sel, pa);
         break;
     case VIRTIO_PCI_QUEUE_SEL:
-        if (val < VIRTIO_PCI_QUEUE_MAX)
+        if (val < virtio_get_queue_max(vdev))
             vdev->queue_sel = val;
         break;
     case VIRTIO_PCI_QUEUE_NOTIFY:
-        if (val < VIRTIO_PCI_QUEUE_MAX) {
+        if (val < virtio_get_queue_max(vdev)) {
             virtio_queue_notify(vdev, val);
         }
         break;
@@ -792,7 +794,7 @@ static int virtio_pci_set_guest_notifiers(DeviceState *d, int nvqs, bool assign)
     bool with_irqfd = msix_enabled(&proxy->pci_dev) &&
         kvm_msi_via_irqfd_enabled();
 
-    nvqs = MIN(nvqs, VIRTIO_PCI_QUEUE_MAX);
+    nvqs = MIN(nvqs, virtio_get_queue_max(vdev));
 
     /* When deassigning, pass a consistent nvqs value
      * to avoid leaking notifiers.
diff --git a/include/hw/virtio/virtio.h b/include/hw/virtio/virtio.h
index 04ad532..9a81edf 100644
--- a/include/hw/virtio/virtio.h
+++ b/include/hw/virtio/virtio.h
@@ -92,7 +92,6 @@ typedef struct VirtQueueElement
     struct iovec out_sg[VIRTQUEUE_MAX_SIZE];
 } VirtQueueElement;
 
-#define VIRTIO_PCI_QUEUE_MAX 64
 #define VIRTIO_CCW_QUEUE_MAX 64
 
 #define VIRTIO_NO_VECTOR 0xffff
-- 
2.1.0

  parent reply	other threads:[~2015-03-05  5:49 UTC|newest]

Thread overview: 31+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2015-03-05  5:48 [Qemu-devel] [PATCH V3 00/14] Support more virtio queues Jason Wang
2015-03-05  5:48 ` [Qemu-devel] [PATCH V3 01/14] virtio-net: validate backend queue numbers against bus limitation Jason Wang
2015-03-05  5:48 ` [Qemu-devel] [PATCH V3 02/14] virtio-net: fix the upper bound when trying to delete queues Jason Wang
2015-03-05  5:48 ` [Qemu-devel] [PATCH V3 03/14] virito: introduce bus specific queue limit Jason Wang
2015-03-05  5:48 ` [Qemu-devel] [PATCH V3 04/14] virtio-ccw: introduce ccw " Jason Wang
2015-03-06 12:13   ` Cornelia Huck
2015-03-09  7:13     ` Jason Wang
2015-03-05  5:48 ` [Qemu-devel] [PATCH V3 05/14] virtio-s390: switch to bus " Jason Wang
2015-03-06 12:18   ` Cornelia Huck
2015-03-09  7:17     ` Jason Wang
2015-03-05  5:48 ` [Qemu-devel] [PATCH V3 06/14] virtio-serial-bus: " Jason Wang
2015-03-06 12:27   ` Cornelia Huck
2015-03-09  7:26     ` Jason Wang
2015-03-05  5:48 ` [Qemu-devel] [PATCH V3 07/14] virtio-mmio: " Jason Wang
2015-03-05  5:48 ` Jason Wang [this message]
2015-03-06 12:28   ` [Qemu-devel] [PATCH V3 08/14] virtio-pci: switch to use " Cornelia Huck
2015-03-09  7:32     ` Jason Wang
2015-03-09  8:04       ` Cornelia Huck
2015-03-09  8:58         ` Jason Wang
2015-03-05  5:48 ` [Qemu-devel] [PATCH V3 09/14] virtio: introduce vector to virtqueues mapping Jason Wang
2015-03-06 12:55   ` Cornelia Huck
2015-03-09  7:41     ` Jason Wang
2015-03-05  5:48 ` [Qemu-devel] [PATCH V3 10/14] virtio: introduce virtio_queue_get_index() Jason Wang
2015-03-05  6:12   ` Fam Zheng
2015-03-06  2:49     ` Jason Wang
2015-03-05  5:48 ` [Qemu-devel] [PATCH V3 11/14] virtio-pci: speedup MSI-X masking and unmasking Jason Wang
2015-03-05  5:48 ` [Qemu-devel] [PATCH V3 12/14] virtio-pci: increase the maximum number of virtqueues to 513 Jason Wang
2015-03-05  5:48 ` [Qemu-devel] [PATCH V3 13/14] pci: remove hard-coded bar size in msix_init_exclusive_bar() Jason Wang
2015-03-05  5:48 ` [Qemu-devel] [PATCH V3 14/14] virtio-pci: introduce auto_msix_bar_size property Jason Wang
2015-03-12  9:28 ` [Qemu-devel] [PATCH V3 00/14] Support more virtio queues Michael S. Tsirkin
2015-03-12  9:33   ` Jason Wang

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