qemu-devel.nongnu.org archive mirror
 help / color / mirror / Atom feed
From: Jason Wang <jasowang@redhat.com>
To: qemu-devel@nongnu.org
Cc: mst@redhat.com, Jason Wang <jasowang@redhat.com>,
	Alexander Graf <agraf@suse.de>,
	Christian Borntraeger <borntraeger@de.ibm.com>,
	Cornelia Huck <cornelia.huck@de.ibm.com>,
	Richard Henderson <rth@twiddle.net>
Subject: [Qemu-devel] [PATCH V2 04/11] virtio-ccw: introduce ccw specific queue limit
Date: Thu, 26 Feb 2015 15:04:39 +0800	[thread overview]
Message-ID: <1424934286-7099-5-git-send-email-jasowang@redhat.com> (raw)
In-Reply-To: <1424934286-7099-1-git-send-email-jasowang@redhat.com>

Instead of depending on marco, using a bus specific limit.

Cc: Alexander Graf <agraf@suse.de>
Cc: Cornelia Huck <cornelia.huck@de.ibm.com>
Cc: Christian Borntraeger <borntraeger@de.ibm.com>
Cc: Richard Henderson <rth@twiddle.net>
Signed-off-by: Jason Wang <jasowang@redhat.com>
---
 hw/s390x/s390-virtio-ccw.c |  7 +++++--
 hw/s390x/virtio-ccw.c      | 13 +++++++------
 include/hw/virtio/virtio.h |  1 +
 3 files changed, 13 insertions(+), 8 deletions(-)

diff --git a/hw/s390x/s390-virtio-ccw.c b/hw/s390x/s390-virtio-ccw.c
index 71bafe0..6aeb815 100644
--- a/hw/s390x/s390-virtio-ccw.c
+++ b/hw/s390x/s390-virtio-ccw.c
@@ -43,6 +43,7 @@ void io_subsystem_reset(void)
 
 static int virtio_ccw_hcall_notify(const uint64_t *args)
 {
+    VirtIODevice *vdev;
     uint64_t subch_id = args[0];
     uint64_t queue = args[1];
     SubchDev *sch;
@@ -55,10 +56,12 @@ static int virtio_ccw_hcall_notify(const uint64_t *args)
     if (!sch || !css_subch_visible(sch)) {
         return -EINVAL;
     }
-    if (queue >= VIRTIO_PCI_QUEUE_MAX) {
+
+    vdev = virtio_ccw_get_vdev(sch);
+    if (queue >= virtio_get_queue_max(vdev)) {
         return -EINVAL;
     }
-    virtio_queue_notify(virtio_ccw_get_vdev(sch), queue);
+    virtio_queue_notify(vdev, queue);
     return 0;
 
 }
diff --git a/hw/s390x/virtio-ccw.c b/hw/s390x/virtio-ccw.c
index 4874622..98a1a90 100644
--- a/hw/s390x/virtio-ccw.c
+++ b/hw/s390x/virtio-ccw.c
@@ -170,7 +170,7 @@ static void virtio_ccw_start_ioeventfd(VirtioCcwDevice *dev)
         return;
     }
     vdev = virtio_bus_get_device(&dev->bus);
-    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;
         }
@@ -205,7 +205,7 @@ static void virtio_ccw_stop_ioeventfd(VirtioCcwDevice *dev)
         return;
     }
     vdev = virtio_bus_get_device(&dev->bus);
-    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;
         }
@@ -265,8 +265,9 @@ static int virtio_ccw_set_vqs(SubchDev *sch, uint64_t addr, uint32_t align,
                               uint16_t index, uint16_t num)
 {
     VirtIODevice *vdev = virtio_ccw_get_vdev(sch);
+    int queue_max = virtio_get_queue_max(vdev);
 
-    if (index > VIRTIO_PCI_QUEUE_MAX) {
+    if (index > queue_max) {
         return -EINVAL;
     }
 
@@ -291,7 +292,7 @@ static int virtio_ccw_set_vqs(SubchDev *sch, uint64_t addr, uint32_t align,
         virtio_queue_set_vector(vdev, index, index);
     }
     /* tell notify handler in case of config change */
-    vdev->config_vector = VIRTIO_PCI_QUEUE_MAX;
+    vdev->config_vector = queue_max;
     return 0;
 }
 
@@ -1026,7 +1027,7 @@ static void virtio_ccw_notify(DeviceState *d, uint16_t vector)
         return;
     }
 
-    if (vector < VIRTIO_PCI_QUEUE_MAX) {
+    if (vector < virtio_get_queue_max(virtio_bus_get_device(&dev->bus))) {
         if (!dev->indicators) {
             return;
         }
@@ -1695,7 +1696,7 @@ static void virtio_ccw_bus_class_init(ObjectClass *klass, void *data)
     k->load_queue = virtio_ccw_load_queue;
     k->save_config = virtio_ccw_save_config;
     k->load_config = virtio_ccw_load_config;
-    k->queue_max = VIRTIO_PCI_QUEUE_MAX;
+    k->queue_max = VIRTIO_CCW_QUEUE_MAX;
 }
 
 static const TypeInfo virtio_ccw_bus_info = {
diff --git a/include/hw/virtio/virtio.h b/include/hw/virtio/virtio.h
index 9fe0d92..04ad532 100644
--- a/include/hw/virtio/virtio.h
+++ b/include/hw/virtio/virtio.h
@@ -93,6 +93,7 @@ typedef struct VirtQueueElement
 } VirtQueueElement;
 
 #define VIRTIO_PCI_QUEUE_MAX 64
+#define VIRTIO_CCW_QUEUE_MAX 64
 
 #define VIRTIO_NO_VECTOR 0xffff
 
-- 
1.9.1

  parent reply	other threads:[~2015-02-26  7:05 UTC|newest]

Thread overview: 29+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2015-02-26  7:04 [Qemu-devel] [PATCH V2 00/11] Support more virtio queues Jason Wang
2015-02-26  7:04 ` [Qemu-devel] [PATCH V2 01/11] virtio-net: validate backend queue numbers against bus limitation Jason Wang
2015-02-26  7:04 ` [Qemu-devel] [PATCH V2 02/11] virtio-net: fix the upper bound when trying to delete queues Jason Wang
2015-02-26  7:04 ` [Qemu-devel] [PATCH V2 03/11] virito: introduce bus specific queue limit Jason Wang
2015-02-26 10:19   ` Michael S. Tsirkin
2015-02-27  3:04     ` Jason Wang
2015-02-26 12:57   ` Cornelia Huck
2015-02-27  3:34     ` Jason Wang
2015-02-27  9:34       ` Cornelia Huck
2015-02-28  3:17         ` Jason Wang
2015-02-26  7:04 ` Jason Wang [this message]
2015-02-26 13:02   ` [Qemu-devel] [PATCH V2 04/11] virtio-ccw: introduce ccw " Cornelia Huck
2015-02-27  3:38     ` Jason Wang
2015-02-27  9:41       ` Cornelia Huck
2015-02-28  3:30         ` Jason Wang
2015-02-26  7:04 ` [Qemu-devel] [PATCH V2 05/11] virtio-serial-bus: switch to bus " Jason Wang
2015-02-26  7:04 ` [Qemu-devel] [PATCH V2 06/11] virtio-s390: " Jason Wang
2015-02-26 13:05   ` Cornelia Huck
2015-02-27  6:34     ` Jason Wang
2015-02-27  9:49       ` Cornelia Huck
2015-02-28  3:31         ` Jason Wang
2015-03-02  8:51           ` Cornelia Huck
2015-02-26  7:04 ` [Qemu-devel] [PATCH V2 07/11] virtio-mmio: " Jason Wang
2015-02-26  7:04 ` [Qemu-devel] [PATCH V2 08/11] virtio-pci: switch to use " Jason Wang
2015-02-26 10:20   ` Michael S. Tsirkin
2015-02-27  3:18     ` Jason Wang
2015-02-26  7:04 ` [Qemu-devel] [PATCH V2 09/11] virtio-pci: increase the maximum number of virtqueues to 513 Jason Wang
2015-02-26  7:04 ` [Qemu-devel] [PATCH V2 10/11] pci: remove hard-coded bar size in msix_init_exclusive_bar() Jason Wang
2015-02-26  7:04 ` [Qemu-devel] [PATCH V2 11/11] virtio-pci: introduce auto_msix_bar_size property Jason Wang

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=1424934286-7099-5-git-send-email-jasowang@redhat.com \
    --to=jasowang@redhat.com \
    --cc=agraf@suse.de \
    --cc=borntraeger@de.ibm.com \
    --cc=cornelia.huck@de.ibm.com \
    --cc=mst@redhat.com \
    --cc=qemu-devel@nongnu.org \
    --cc=rth@twiddle.net \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).