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net/smc: Introduce SMCR get link command

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Introduce get link command which loops through
all available links of all available link groups. It
uses the SMC-R linkgroup list as entry point, not
the socket list, which makes linkgroup diagnosis
possible, in case linkgroup does not contain active
connections anymore.

Signed-off-by: Guvenc Gulce <guvenc@linux.ibm.com>
Signed-off-by: Karsten Graul <kgraul@linux.ibm.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
This commit is contained in:
Guvenc Gulce 2020-12-01 20:20:46 +01:00 • committed by Jakub Kicinski
parent e9b8c845cb
commit 5a7e09d58f
5 changed files with 124 additions and 17 deletions
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18
include/uapi/linux/smc.h
View file

@ -41,6 +41,7 @@ enum { /* SMC PNET Table commands */
enum {
SMC_NETLINK_GET_SYS_INFO = 1,
SMC_NETLINK_GET_LGR_SMCR,
SMC_NETLINK_GET_LINK_SMCR,
};
/* SMC_GENL_FAMILY top level attributes */
@ -48,6 +49,7 @@ enum {
SMC_GEN_UNSPEC,
SMC_GEN_SYS_INFO, /* nest */
SMC_GEN_LGR_SMCR, /* nest */
SMC_GEN_LINK_SMCR, /* nest */
__SMC_GEN_MAX,
SMC_GEN_MAX = __SMC_GEN_MAX - 1
};
@ -77,4 +79,20 @@ enum {
SMC_NLA_LGR_R_MAX = __SMC_NLA_LGR_R_MAX - 1
};
/* SMC_GEN_LINK_SMCR attributes */
enum {
SMC_NLA_LINK_UNSPEC,
SMC_NLA_LINK_ID, /* u8 */
SMC_NLA_LINK_IB_DEV, /* string */
SMC_NLA_LINK_IB_PORT, /* u8 */
SMC_NLA_LINK_GID, /* string */
SMC_NLA_LINK_PEER_GID, /* string */
SMC_NLA_LINK_CONN_CNT, /* u32 */
SMC_NLA_LINK_NET_DEV, /* u32 */
SMC_NLA_LINK_UID, /* u32 */
SMC_NLA_LINK_PEER_UID, /* u32 */
SMC_NLA_LINK_STATE, /* u32 */
__SMC_NLA_LINK_MAX,
SMC_NLA_LINK_MAX = __SMC_NLA_LINK_MAX - 1
};
#endif /* _UAPI_LINUX_SMC_H */