mirror of
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
synced 2024-08-22 00:40:03 +00:00
hv_netvsc: Use the num_online_cpus() for channel limit
Since we no longer localize channel/CPU affiliation within one NUMA node, num_online_cpus() is used as the number of channel cap, instead of the number of processors in a NUMA node. This patch allows a bigger range for tuning the number of channels. Signed-off-by: Haiyang Zhang <haiyangz@microsoft.com> Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
parent
e158624155
commit
25a39f7f97
1 changed files with 2 additions and 9 deletions
|
@ -1221,7 +1221,6 @@ struct netvsc_device *rndis_filter_device_add(struct hv_device *dev,
|
|||
struct ndis_recv_scale_cap rsscap;
|
||||
u32 rsscap_size = sizeof(struct ndis_recv_scale_cap);
|
||||
u32 mtu, size;
|
||||
const struct cpumask *node_cpu_mask;
|
||||
u32 num_possible_rss_qs;
|
||||
int i, ret;
|
||||
|
||||
|
@ -1290,14 +1289,8 @@ struct netvsc_device *rndis_filter_device_add(struct hv_device *dev,
|
|||
if (ret || rsscap.num_recv_que < 2)
|
||||
goto out;
|
||||
|
||||
/*
|
||||
* We will limit the VRSS channels to the number CPUs in the NUMA node
|
||||
* the primary channel is currently bound to.
|
||||
*
|
||||
* This also guarantees that num_possible_rss_qs <= num_online_cpus
|
||||
*/
|
||||
node_cpu_mask = cpumask_of_node(cpu_to_node(dev->channel->target_cpu));
|
||||
num_possible_rss_qs = min_t(u32, cpumask_weight(node_cpu_mask),
|
||||
/* This guarantees that num_possible_rss_qs <= num_online_cpus */
|
||||
num_possible_rss_qs = min_t(u32, num_online_cpus(),
|
||||
rsscap.num_recv_que);
|
||||
|
||||
net_device->max_chn = min_t(u32, VRSS_CHANNEL_MAX, num_possible_rss_qs);
|
||||
|
|
Loading…
Reference in a new issue