Displaying 20 results from an estimated 99 matches for "hcpu".
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2019 Mar 18
1
[PATCH] virtio_net: remove hcpu from virtnet_clean_affinity
...net.c b/drivers/net/virtio_net.c
index 7eb38ea9ba56..1b03c4b6ebff 100644
--- a/drivers/net/virtio_net.c
+++ b/drivers/net/virtio_net.c
@@ -1925,7 +1925,7 @@ static int virtnet_vlan_rx_kill_vid(struct net_device *dev,
return 0;
}
-static void virtnet_clean_affinity(struct virtnet_info *vi, long hcpu)
+static void virtnet_clean_affinity(struct virtnet_info *vi)
{
int i;
@@ -1949,7 +1949,7 @@ static void virtnet_set_affinity(struct virtnet_info *vi)
int stride;
if (!zalloc_cpumask_var(&mask, GFP_KERNEL)) {
- virtnet_clean_affinity(vi, -1);
+ virtnet_clean_affinity(vi);
return...
2013 Sep 27
4
[PATCH net-next] virtio-net: switch to use XPS to choose txq
...Per-cpu variable to show the mapping from CPU to virtqueue */
- int __percpu *vq_index;
-
/* CPU hot plug notifier */
struct notifier_block nb;
};
@@ -1063,7 +1060,6 @@ static int virtnet_vlan_rx_kill_vid(struct net_device *dev,
static void virtnet_clean_affinity(struct virtnet_info *vi, long hcpu)
{
int i;
- int cpu;
if (vi->affinity_hint_set) {
for (i = 0; i < vi->max_queue_pairs; i++) {
@@ -1073,20 +1069,11 @@ static void virtnet_clean_affinity(struct virtnet_info *vi, long hcpu)
vi->affinity_hint_set = false;
}
-
- i = 0;
- for_each_online_cpu(cpu) {
- if (c...
2013 Sep 27
4
[PATCH net-next] virtio-net: switch to use XPS to choose txq
...Per-cpu variable to show the mapping from CPU to virtqueue */
- int __percpu *vq_index;
-
/* CPU hot plug notifier */
struct notifier_block nb;
};
@@ -1063,7 +1060,6 @@ static int virtnet_vlan_rx_kill_vid(struct net_device *dev,
static void virtnet_clean_affinity(struct virtnet_info *vi, long hcpu)
{
int i;
- int cpu;
if (vi->affinity_hint_set) {
for (i = 0; i < vi->max_queue_pairs; i++) {
@@ -1073,20 +1069,11 @@ static void virtnet_clean_affinity(struct virtnet_info *vi, long hcpu)
vi->affinity_hint_set = false;
}
-
- i = 0;
- for_each_online_cpu(cpu) {
- if (c...
2013 Sep 29
0
[PATCH net-next] virtio-net: switch to use XPS to choose txq
...g from CPU to virtqueue */
> - int __percpu *vq_index;
> -
> /* CPU hot plug notifier */
> struct notifier_block nb;
> };
> @@ -1063,7 +1060,6 @@ static int virtnet_vlan_rx_kill_vid(struct net_device *dev,
> static void virtnet_clean_affinity(struct virtnet_info *vi, long hcpu)
> {
> int i;
> - int cpu;
>
> if (vi->affinity_hint_set) {
> for (i = 0; i < vi->max_queue_pairs; i++) {
> @@ -1073,20 +1069,11 @@ static void virtnet_clean_affinity(struct virtnet_info *vi, long hcpu)
>
> vi->affinity_hint_set = false;
>...
2013 Sep 30
4
[net-next PATCH V2] virtio-net: switch to use XPS to choose txq
...Per-cpu variable to show the mapping from CPU to virtqueue */
- int __percpu *vq_index;
-
/* CPU hot plug notifier */
struct notifier_block nb;
};
@@ -1063,7 +1060,6 @@ static int virtnet_vlan_rx_kill_vid(struct net_device *dev,
static void virtnet_clean_affinity(struct virtnet_info *vi, long hcpu)
{
int i;
- int cpu;
if (vi->affinity_hint_set) {
for (i = 0; i < vi->max_queue_pairs; i++) {
@@ -1073,16 +1069,6 @@ static void virtnet_clean_affinity(struct virtnet_info *vi, long hcpu)
vi->affinity_hint_set = false;
}
-
- i = 0;
- for_each_online_cpu(cpu) {
- if (cp...
2013 Sep 30
4
[net-next PATCH V2] virtio-net: switch to use XPS to choose txq
...Per-cpu variable to show the mapping from CPU to virtqueue */
- int __percpu *vq_index;
-
/* CPU hot plug notifier */
struct notifier_block nb;
};
@@ -1063,7 +1060,6 @@ static int virtnet_vlan_rx_kill_vid(struct net_device *dev,
static void virtnet_clean_affinity(struct virtnet_info *vi, long hcpu)
{
int i;
- int cpu;
if (vi->affinity_hint_set) {
for (i = 0; i < vi->max_queue_pairs; i++) {
@@ -1073,16 +1069,6 @@ static void virtnet_clean_affinity(struct virtnet_info *vi, long hcpu)
vi->affinity_hint_set = false;
}
-
- i = 0;
- for_each_online_cpu(cpu) {
- if (cp...
2013 Sep 30
0
[net-next PATCH V2] virtio-net: switch to use XPS to choose txq
...g from CPU to virtqueue */
> - int __percpu *vq_index;
> -
> /* CPU hot plug notifier */
> struct notifier_block nb;
> };
> @@ -1063,7 +1060,6 @@ static int virtnet_vlan_rx_kill_vid(struct net_device *dev,
> static void virtnet_clean_affinity(struct virtnet_info *vi, long hcpu)
> {
> int i;
> - int cpu;
>
> if (vi->affinity_hint_set) {
> for (i = 0; i < vi->max_queue_pairs; i++) {
> @@ -1073,16 +1069,6 @@ static void virtnet_clean_affinity(struct virtnet_info *vi, long hcpu)
>
> vi->affinity_hint_set = false;
> }...
2013 Sep 27
0
[PATCH net-next] virtio-net: switch to use XPS to choose txq
...g from CPU to virtqueue */
> - int __percpu *vq_index;
> -
> /* CPU hot plug notifier */
> struct notifier_block nb;
> };
> @@ -1063,7 +1060,6 @@ static int virtnet_vlan_rx_kill_vid(struct net_device *dev,
> static void virtnet_clean_affinity(struct virtnet_info *vi, long hcpu)
> {
> int i;
> - int cpu;
>
> if (vi->affinity_hint_set) {
> for (i = 0; i < vi->max_queue_pairs; i++) {
> @@ -1073,20 +1069,11 @@ static void virtnet_clean_affinity(struct virtnet_info *vi, long hcpu)
>
> vi->affinity_hint_set = false;
>...
2019 Dec 23
0
[RHEL7]virtio-net: switch to use XPS to choose txq
...from CPU to virtqueue */
> - int __percpu *vq_index;
> -
> /* CPU hot plug notifier */
> struct notifier_block nb;
>
> @@ -1124,7 +1121,6 @@ static int virtnet_vlan_rx_kill_vid(struct net_device *dev,
> static void virtnet_clean_affinity(struct virtnet_info *vi, long hcpu)
> {
> int i;
> - int cpu;
>
> if (vi->affinity_hint_set) {
> for (i = 0; i < vi->max_queue_pairs; i++) {
> @@ -1134,16 +1130,6 @@ static void virtnet_clean_affinity(struct virtnet_info *vi, long hcpu)
>
> vi->affinity_hint_set = false;
&...
2013 Nov 05
1
[RESEND PATCH net-next] virtio-net: switch to use XPS to choose txq
...Per-cpu variable to show the mapping from CPU to virtqueue */
- int __percpu *vq_index;
-
/* CPU hot plug notifier */
struct notifier_block nb;
};
@@ -1114,7 +1111,6 @@ static int virtnet_vlan_rx_kill_vid(struct net_device *dev,
static void virtnet_clean_affinity(struct virtnet_info *vi, long hcpu)
{
int i;
- int cpu;
if (vi->affinity_hint_set) {
for (i = 0; i < vi->max_queue_pairs; i++) {
@@ -1124,16 +1120,6 @@ static void virtnet_clean_affinity(struct virtnet_info *vi, long hcpu)
vi->affinity_hint_set = false;
}
-
- i = 0;
- for_each_online_cpu(cpu) {
- if (cp...
2013 Nov 05
1
[RESEND PATCH net-next] virtio-net: switch to use XPS to choose txq
...Per-cpu variable to show the mapping from CPU to virtqueue */
- int __percpu *vq_index;
-
/* CPU hot plug notifier */
struct notifier_block nb;
};
@@ -1114,7 +1111,6 @@ static int virtnet_vlan_rx_kill_vid(struct net_device *dev,
static void virtnet_clean_affinity(struct virtnet_info *vi, long hcpu)
{
int i;
- int cpu;
if (vi->affinity_hint_set) {
for (i = 0; i < vi->max_queue_pairs; i++) {
@@ -1124,16 +1120,6 @@ static void virtnet_clean_affinity(struct virtnet_info *vi, long hcpu)
vi->affinity_hint_set = false;
}
-
- i = 0;
- for_each_online_cpu(cpu) {
- if (cp...
2012 Dec 26
5
[RFC PATCH] virtio-net: reset virtqueue affinity when doing cpu hotplug
...N (ETH_HLEN + VLAN_HLEN + ETH_DATA_LEN)
#define GOOD_COPY_LEN 128
@@ -1041,6 +1044,26 @@ static void virtnet_set_affinity(struct virtnet_info *vi, bool set)
vi->affinity_hint_set = false;
}
+static int virtnet_cpu_callback(struct notifier_block *nfb,
+ unsigned long action, void *hcpu)
+{
+ switch(action) {
+ case CPU_ONLINE:
+ case CPU_ONLINE_FROZEN:
+ case CPU_DEAD:
+ case CPU_DEAD_FROZEN:
+ cpu_hotplug = true;
+ break;
+ default:
+ break;
+ }
+ return NOTIFY_OK;
+}
+
+static struct notifier_block virtnet_cpu_notifier = {
+ .notifier_call = virtnet_cpu_callback,
+};
+
stat...
2012 Dec 26
5
[RFC PATCH] virtio-net: reset virtqueue affinity when doing cpu hotplug
...N (ETH_HLEN + VLAN_HLEN + ETH_DATA_LEN)
#define GOOD_COPY_LEN 128
@@ -1041,6 +1044,26 @@ static void virtnet_set_affinity(struct virtnet_info *vi, bool set)
vi->affinity_hint_set = false;
}
+static int virtnet_cpu_callback(struct notifier_block *nfb,
+ unsigned long action, void *hcpu)
+{
+ switch(action) {
+ case CPU_ONLINE:
+ case CPU_ONLINE_FROZEN:
+ case CPU_DEAD:
+ case CPU_DEAD_FROZEN:
+ cpu_hotplug = true;
+ break;
+ default:
+ break;
+ }
+ return NOTIFY_OK;
+}
+
+static struct notifier_block virtnet_cpu_notifier = {
+ .notifier_call = virtnet_cpu_callback,
+};
+
stat...
2013 Jan 18
3
[PATCH V5 1/2] virtio-net: fix the set affinity bug when CPU IDs are not consecutive
As Michael mentioned, set affinity and select queue will not work very
well when CPU IDs are not consecutive, this can happen with hot unplug.
Fix this bug by traversal the online CPUs, and create a per cpu variable
to find the mapping from CPU to the preferable virtual-queue.
Cc: Rusty Russell <rusty at rustcorp.com.au>
Cc: "Michael S. Tsirkin" <mst at redhat.com>
Cc: Jason
2013 Jan 18
3
[PATCH V5 1/2] virtio-net: fix the set affinity bug when CPU IDs are not consecutive
As Michael mentioned, set affinity and select queue will not work very
well when CPU IDs are not consecutive, this can happen with hot unplug.
Fix this bug by traversal the online CPUs, and create a per cpu variable
to find the mapping from CPU to the preferable virtual-queue.
Cc: Rusty Russell <rusty at rustcorp.com.au>
Cc: "Michael S. Tsirkin" <mst at redhat.com>
Cc: Jason
2013 Jan 25
5
[PATCH V8 1/3] virtio-net: fix the set affinity bug when CPU IDs are not consecutive
As Michael mentioned, set affinity and select queue will not work very
well when CPU IDs are not consecutive, this can happen with hot unplug.
Fix this bug by traversal the online CPUs, and create a per cpu variable
to find the mapping from CPU to the preferable virtual-queue.
Cc: Rusty Russell <rusty at rustcorp.com.au>
Cc: "Michael S. Tsirkin" <mst at redhat.com>
Cc: Jason
2013 Jan 25
5
[PATCH V8 1/3] virtio-net: fix the set affinity bug when CPU IDs are not consecutive
As Michael mentioned, set affinity and select queue will not work very
well when CPU IDs are not consecutive, this can happen with hot unplug.
Fix this bug by traversal the online CPUs, and create a per cpu variable
to find the mapping from CPU to the preferable virtual-queue.
Cc: Rusty Russell <rusty at rustcorp.com.au>
Cc: "Michael S. Tsirkin" <mst at redhat.com>
Cc: Jason
2016 Aug 12
0
[PATCH 6/6] net: virtio-net: Convert to hotplug state machine
...uffers: protected by the rtnl lock */
struct virtio_net_ctrl_hdr ctrl_hdr;
@@ -1237,25 +1238,53 @@ static void virtnet_set_affinity(struct virtnet_info *vi)
vi->affinity_hint_set = true;
}
-static int virtnet_cpu_callback(struct notifier_block *nfb,
- unsigned long action, void *hcpu)
+static int virtnet_cpu_online(unsigned int cpu, struct hlist_node *node)
{
- struct virtnet_info *vi = container_of(nfb, struct virtnet_info, nb);
+ struct virtnet_info *vi = hlist_entry_safe(node, struct virtnet_info,
+ node);
+ virtnet_set_affinity(vi);
+ return 0;
+}
- switch(action...
2016 Aug 12
0
[PATCH 6/6] net: virtio-net: Convert to hotplug state machine
...uffers: protected by the rtnl lock */
struct virtio_net_ctrl_hdr ctrl_hdr;
@@ -1237,25 +1238,53 @@ static void virtnet_set_affinity(struct virtnet_info *vi)
vi->affinity_hint_set = true;
}
-static int virtnet_cpu_callback(struct notifier_block *nfb,
- unsigned long action, void *hcpu)
+static int virtnet_cpu_online(unsigned int cpu, struct hlist_node *node)
{
- struct virtnet_info *vi = container_of(nfb, struct virtnet_info, nb);
+ struct virtnet_info *vi = hlist_entry_safe(node, struct virtnet_info,
+ node);
+ virtnet_set_affinity(vi);
+ return 0;
+}
- switch(action...
2013 Jan 25
1
[PATCH] HAP: Add global enable/disable command line option
...".bss.page_aligned")))
hvm_io_bitmap[3*PAGE_SIZE/BYTES_PER_LONG];
+/* Xen command-line option to enable HAP */
+static int opt_hap_enabled = 1;
+boolean_param("hap", opt_hap_enabled);
+
static int cpu_callback(
struct notifier_block *nfb, unsigned long action, void *hcpu)
{
@@ -125,14 +129,23 @@ static int __init hvm_enable(void)
printk("HVM: %s enabled\n", hvm_funcs.name);
if ( hvm_funcs.hap_supported )
{
- printk("HVM: Hardware Assisted Paging (HAP) detected\n");
- printk("HVM: HAP page sizes: 4kB");
-...