Add SIOCGIFDOWNREASON.
The ioctl(2) is intended to provide more details about the cause of the down for the link. Eventually we might define a comprehensive list of codes for the situations. But interface also allows the driver to provide free-form null-terminated ASCII string to provide arbitrary non-formalized information. Sample implementation exists for mlx5(4), where the string is fetched from firmware controlling the port. Reviewed by: hselasky, rrs Sponsored by: Mellanox Technologies MFC after: 1 week Differential revision: https://reviews.freebsd.org/D21527
This commit is contained in:
parent
6fd583583b
commit
247cf5664e
Notes:
svn2git
2020-12-20 02:59:44 +00:00
svn path=/head/; revision=352458
@ -2891,6 +2891,7 @@ ifhwioctl(u_long cmd, struct ifnet *ifp, caddr_t data, struct thread *td)
|
||||
case SIOCGIFGENERIC:
|
||||
case SIOCGIFRSSKEY:
|
||||
case SIOCGIFRSSHASH:
|
||||
case SIOCGIFDOWNREASON:
|
||||
if (ifp->if_ioctl == NULL)
|
||||
return (EOPNOTSUPP);
|
||||
error = (*ifp->if_ioctl)(ifp, cmd, data);
|
||||
|
10
sys/net/if.h
10
sys/net/if.h
@ -585,6 +585,16 @@ struct ifrsshash {
|
||||
|
||||
#define IFNET_PCP_NONE 0xff /* PCP disabled */
|
||||
|
||||
#define IFDR_MSG_SIZE 64
|
||||
#define IFDR_REASON_MSG 1
|
||||
#define IFDR_REASON_VENDOR 2
|
||||
struct ifdownreason {
|
||||
char ifdr_name[IFNAMSIZ];
|
||||
uint32_t ifdr_reason;
|
||||
uint32_t ifdr_vendor;
|
||||
char ifdr_msg[IFDR_MSG_SIZE];
|
||||
};
|
||||
|
||||
#endif /* __BSD_VISIBLE */
|
||||
|
||||
#ifdef _KERNEL
|
||||
|
@ -143,4 +143,6 @@
|
||||
#define SIOCGLANPCP _IOWR('i', 152, struct ifreq) /* Get (V)LAN PCP */
|
||||
#define SIOCSLANPCP _IOW('i', 153, struct ifreq) /* Set (V)LAN PCP */
|
||||
|
||||
#define SIOCGIFDOWNREASON _IOWR('i', 154, struct ifdownreason)
|
||||
|
||||
#endif /* !_SYS_SOCKIO_H_ */
|
||||
|
Loading…
Reference in New Issue
Block a user