Commit 76ff5cc9 authored by Jiri Pirko's avatar Jiri Pirko Committed by David S. Miller

rtnl: allow to specify number of rx and tx queues on device creation

This patch introduces IFLA_NUM_TX_QUEUES and IFLA_NUM_RX_QUEUES by
which userspace can set number of rx and/or tx queues to be allocated
for newly created netdevice.
This overrides ops->get_num_[tr]x_queues()
Signed-off-by: default avatarJiri Pirko <jiri@resnulli.us>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent d40156aa
...@@ -140,6 +140,8 @@ enum { ...@@ -140,6 +140,8 @@ enum {
IFLA_EXT_MASK, /* Extended info mask, VFs, etc */ IFLA_EXT_MASK, /* Extended info mask, VFs, etc */
IFLA_PROMISCUITY, /* Promiscuity count: > 0 means acts PROMISC */ IFLA_PROMISCUITY, /* Promiscuity count: > 0 means acts PROMISC */
#define IFLA_PROMISCUITY IFLA_PROMISCUITY #define IFLA_PROMISCUITY IFLA_PROMISCUITY
IFLA_NUM_TX_QUEUES,
IFLA_NUM_RX_QUEUES,
__IFLA_MAX __IFLA_MAX
}; };
......
...@@ -771,6 +771,8 @@ static noinline size_t if_nlmsg_size(const struct net_device *dev, ...@@ -771,6 +771,8 @@ static noinline size_t if_nlmsg_size(const struct net_device *dev,
+ nla_total_size(4) /* IFLA_LINK */ + nla_total_size(4) /* IFLA_LINK */
+ nla_total_size(4) /* IFLA_MASTER */ + nla_total_size(4) /* IFLA_MASTER */
+ nla_total_size(4) /* IFLA_PROMISCUITY */ + nla_total_size(4) /* IFLA_PROMISCUITY */
+ nla_total_size(4) /* IFLA_NUM_TX_QUEUES */
+ nla_total_size(4) /* IFLA_NUM_RX_QUEUES */
+ nla_total_size(1) /* IFLA_OPERSTATE */ + nla_total_size(1) /* IFLA_OPERSTATE */
+ nla_total_size(1) /* IFLA_LINKMODE */ + nla_total_size(1) /* IFLA_LINKMODE */
+ nla_total_size(ext_filter_mask + nla_total_size(ext_filter_mask
...@@ -889,6 +891,8 @@ static int rtnl_fill_ifinfo(struct sk_buff *skb, struct net_device *dev, ...@@ -889,6 +891,8 @@ static int rtnl_fill_ifinfo(struct sk_buff *skb, struct net_device *dev,
nla_put_u32(skb, IFLA_MTU, dev->mtu) || nla_put_u32(skb, IFLA_MTU, dev->mtu) ||
nla_put_u32(skb, IFLA_GROUP, dev->group) || nla_put_u32(skb, IFLA_GROUP, dev->group) ||
nla_put_u32(skb, IFLA_PROMISCUITY, dev->promiscuity) || nla_put_u32(skb, IFLA_PROMISCUITY, dev->promiscuity) ||
nla_put_u32(skb, IFLA_NUM_TX_QUEUES, dev->num_tx_queues) ||
nla_put_u32(skb, IFLA_NUM_RX_QUEUES, dev->num_rx_queues) ||
(dev->ifindex != dev->iflink && (dev->ifindex != dev->iflink &&
nla_put_u32(skb, IFLA_LINK, dev->iflink)) || nla_put_u32(skb, IFLA_LINK, dev->iflink)) ||
(dev->master && (dev->master &&
...@@ -1106,6 +1110,8 @@ const struct nla_policy ifla_policy[IFLA_MAX+1] = { ...@@ -1106,6 +1110,8 @@ const struct nla_policy ifla_policy[IFLA_MAX+1] = {
[IFLA_AF_SPEC] = { .type = NLA_NESTED }, [IFLA_AF_SPEC] = { .type = NLA_NESTED },
[IFLA_EXT_MASK] = { .type = NLA_U32 }, [IFLA_EXT_MASK] = { .type = NLA_U32 },
[IFLA_PROMISCUITY] = { .type = NLA_U32 }, [IFLA_PROMISCUITY] = { .type = NLA_U32 },
[IFLA_NUM_TX_QUEUES] = { .type = NLA_U32 },
[IFLA_NUM_RX_QUEUES] = { .type = NLA_U32 },
}; };
EXPORT_SYMBOL(ifla_policy); EXPORT_SYMBOL(ifla_policy);
...@@ -1627,9 +1633,14 @@ struct net_device *rtnl_create_link(struct net *src_net, struct net *net, ...@@ -1627,9 +1633,14 @@ struct net_device *rtnl_create_link(struct net *src_net, struct net *net,
unsigned int num_tx_queues = 1; unsigned int num_tx_queues = 1;
unsigned int num_rx_queues = 1; unsigned int num_rx_queues = 1;
if (ops->get_num_tx_queues) if (tb[IFLA_NUM_TX_QUEUES])
num_tx_queues = nla_get_u32(tb[IFLA_NUM_TX_QUEUES]);
else if (ops->get_num_tx_queues)
num_tx_queues = ops->get_num_tx_queues(); num_tx_queues = ops->get_num_tx_queues();
if (ops->get_num_rx_queues)
if (tb[IFLA_NUM_RX_QUEUES])
num_rx_queues = nla_get_u32(tb[IFLA_NUM_RX_QUEUES]);
else if (ops->get_num_rx_queues)
num_rx_queues = ops->get_num_rx_queues(); num_rx_queues = ops->get_num_rx_queues();
err = -ENOMEM; err = -ENOMEM;
......
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