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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/net/rtnetlink.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/net/rtnetlink.h')
-rw-r--r--include/net/rtnetlink.h7
1 files changed, 5 insertions, 2 deletions
diff --git a/include/net/rtnetlink.h b/include/net/rtnetlink.h
index 4093ca78cf60..678f1ffaf843 100644
--- a/include/net/rtnetlink.h
+++ b/include/net/rtnetlink.h
@@ -6,11 +6,14 @@
typedef int (*rtnl_doit_func)(struct sk_buff *, struct nlmsghdr *, void *);
typedef int (*rtnl_dumpit_func)(struct sk_buff *, struct netlink_callback *);
+typedef u16 (*rtnl_calcit_func)(struct sk_buff *);
extern int __rtnl_register(int protocol, int msgtype,
- rtnl_doit_func, rtnl_dumpit_func);
+ rtnl_doit_func, rtnl_dumpit_func,
+ rtnl_calcit_func);
extern void rtnl_register(int protocol, int msgtype,
- rtnl_doit_func, rtnl_dumpit_func);
+ rtnl_doit_func, rtnl_dumpit_func,
+ rtnl_calcit_func);
extern int rtnl_unregister(int protocol, int msgtype);
extern void rtnl_unregister_all(int protocol);