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[Qemu-devel] [patch 07/24] QEMU/KVM: dynamic nic info index allocation
From: |
Marcelo Tosatti |
Subject: |
[Qemu-devel] [patch 07/24] QEMU/KVM: dynamic nic info index allocation |
Date: |
Tue, 11 Mar 2008 17:11:58 -0300 |
User-agent: |
quilt/0.46-1 |
The same, but for nics.
Signed-off-by: Marcelo Tosatti <address@hidden>
Index: kvm-userspace.hotplug2/qemu/net.h
===================================================================
--- kvm-userspace.hotplug2.orig/qemu/net.h
+++ kvm-userspace.hotplug2/qemu/net.h
@@ -46,6 +46,7 @@ struct NICInfo {
const char *model;
VLANState *vlan;
int devfn;
+ int used;
};
extern int nb_nics;
Index: kvm-userspace.hotplug2/qemu/vl.c
===================================================================
--- kvm-userspace.hotplug2.orig/qemu/vl.c
+++ kvm-userspace.hotplug2/qemu/vl.c
@@ -4791,6 +4791,15 @@ static int check_params(char *buf, int b
return 0;
}
+static int nic_get_free_idx(void)
+{
+ int index;
+
+ for (index = 0; index < MAX_NICS; index++)
+ if (!nd_table[index].used)
+ return index;
+ return -1;
+}
static int net_client_init(const char *str)
{
@@ -4823,19 +4832,20 @@ static int net_client_init(const char *s
if (!strcmp(device, "nic")) {
NICInfo *nd;
uint8_t *macaddr;
+ int idx = nic_get_free_idx();
- if (nb_nics >= MAX_NICS) {
+ if (idx == -1 || nb_nics >= MAX_NICS) {
fprintf(stderr, "Too Many NICs\n");
return -1;
}
- nd = &nd_table[nb_nics];
+ nd = &nd_table[idx];
macaddr = nd->macaddr;
macaddr[0] = 0x52;
macaddr[1] = 0x54;
macaddr[2] = 0x00;
macaddr[3] = 0x12;
macaddr[4] = 0x34;
- macaddr[5] = 0x56 + nb_nics;
+ macaddr[5] = 0x56 + idx;
if (get_param_value(buf, sizeof(buf), "macaddr", p)) {
if (parse_macaddr(macaddr, buf) < 0) {
@@ -4847,6 +4857,7 @@ static int net_client_init(const char *s
nd->model = strdup(buf);
}
nd->vlan = vlan;
+ nd->used = 1;
nb_nics++;
vlan->nb_guest_devs++;
ret = 0;
--
- [Qemu-devel] [patch 00/24] QEMU ACPI PCI hotplug support, Marcelo Tosatti, 2008/03/12
- [Qemu-devel] [patch 01/24] QEMU/KVM: add devices to represent PCI slots with _EJ0 method, Marcelo Tosatti, 2008/03/12
- [Qemu-devel] [patch 02/24] QEMU/KVM: add OperationRegion and GPE handler for add/removal notification, Marcelo Tosatti, 2008/03/12
- [Qemu-devel] [patch 05/24] QEMU/KVM: pci hotplug GPE support, Marcelo Tosatti, 2008/03/12
- [Qemu-devel] [patch 03/24] QEMU/KVM: add pci_find_bus, Marcelo Tosatti, 2008/03/12
- [Qemu-devel] [patch 07/24] QEMU/KVM: dynamic nic info index allocation,
Marcelo Tosatti <=
- [Qemu-devel] [patch 06/24] QEMU/KVM: dynamic drive/drive_opt index allocation, Marcelo Tosatti, 2008/03/12
- [Qemu-devel] [patch 04/24] QEMU/KVM: return PCIDevice on net device init and record devfn, Marcelo Tosatti, 2008/03/12
- [Qemu-devel] [patch 09/24] QEMU/KVM: record devfn on block driver instance, Marcelo Tosatti, 2008/03/12
- [Qemu-devel] [patch 13/24] QEMU/KVM: export get_param_value/check_params, Marcelo Tosatti, 2008/03/12
- [Qemu-devel] [patch 10/24] QEMU/KVM: move drives_opt for external use, Marcelo Tosatti, 2008/03/12
- [Qemu-devel] [patch 12/24] QEMU/KVM: add net_client_uninit, Marcelo Tosatti, 2008/03/12
- [Qemu-devel] [patch 14/24] QEMU/KVM: add pci_find_device, Marcelo Tosatti, 2008/03/12
- [Qemu-devel] [patch 15/24] QEMU/KVM: virtio_blk_init return PCIDevice pointer, Marcelo Tosatti, 2008/03/12
- [Qemu-devel] [patch 11/24] QEMU/KVM: net/drive add/remove tweaks, Marcelo Tosatti, 2008/03/12
- [Qemu-devel] [patch 17/24] QEMU/KVM: add cpu_unregister_io_memory and make io mem table index dynamic, Marcelo Tosatti, 2008/03/12