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authorGreg Rose <gregory.v.rose@intel.com>2011-06-10 05:27:09 +0400
committerJeff Kirsher <jeffrey.t.kirsher@intel.com>2011-06-10 07:38:07 +0400
commitc7ac8679bec9397afe8918f788cbcef88c38da54 (patch)
treec152712de4c997ea79252ef9ac72aaedb8f88c18 /include/linux/netlink.h
parent929dd047720785f099e12113780b3d7914ce6d9f (diff)
downloadlinux-c7ac8679bec9397afe8918f788cbcef88c38da54.tar.xz
rtnetlink: Compute and store minimum ifinfo dump size
The message size allocated for rtnl ifinfo dumps was limited to a single page. This is not enough for additional interface info available with devices that support SR-IOV and caused a bug in which VF info would not be displayed if more than approximately 40 VFs were created per interface. Implement a new function pointer for the rtnl_register service that will calculate the amount of data required for the ifinfo dump and allocate enough data to satisfy the request. Signed-off-by: Greg Rose <gregory.v.rose@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Diffstat (limited to 'include/linux/netlink.h')
-rw-r--r--include/linux/netlink.h6
1 files changed, 4 insertions, 2 deletions
diff --git a/include/linux/netlink.h b/include/linux/netlink.h
index a9dd89552f9c..fdd0188a167e 100644
--- a/include/linux/netlink.h
+++ b/include/linux/netlink.h
@@ -221,7 +221,8 @@ struct netlink_callback {
int (*dump)(struct sk_buff * skb,
struct netlink_callback *cb);
int (*done)(struct netlink_callback *cb);
- int family;
+ u16 family;
+ u16 min_dump_alloc;
long args[6];
};
@@ -259,7 +260,8 @@ __nlmsg_put(struct sk_buff *skb, u32 pid, u32 seq, int type, int len, int flags)
extern int netlink_dump_start(struct sock *ssk, struct sk_buff *skb,
const struct nlmsghdr *nlh,
int (*dump)(struct sk_buff *skb, struct netlink_callback*),
- int (*done)(struct netlink_callback*));
+ int (*done)(struct netlink_callback*),
+ u16 min_dump_alloc);
#define NL_NONROOT_RECV 0x1