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net/smc: add support for user defined EIDs

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SMC-Dv2 allows users to define EIDs which allows to create separate
name spaces enabling users to cluster their SMC-Dv2 connections.
Add support for user defined EIDs and extent the generic netlink
interface so users can add, remove and dump EIDs.

Signed-off-by: Karsten Graul <kgraul@linux.ibm.com>
Reviewed-by: Guvenc Gulce  <guvenc@linux.ibm.com>
Signed-off-by: Guvenc Gulce <guvenc@linux.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Karsten Graul
2021-09-14 10:35:05 +02:00
committed by David S. Miller
parent f787e3cfea
commit fa08666255
8 changed files with 335 additions and 31 deletions
Download Patch File Download Diff File Expand all files Collapse all files

15
include/uapi/linux/smc.h
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@@ -38,6 +38,9 @@ enum { /* SMC PNET Table commands */
#define SMC_GENL_FAMILY_VERSION 1
#define SMC_PCI_ID_STR_LEN 16 /* Max length of pci id string */
#define SMC_MAX_HOSTNAME_LEN 32 /* Max length of the hostname */
#define SMC_MAX_UEID 4 /* Max number of user EIDs */
#define SMC_MAX_EID_LEN 32 /* Max length of an EID */
/* SMC_GENL_FAMILY commands */
enum {
@@ -49,6 +52,10 @@ enum {
SMC_NETLINK_GET_DEV_SMCR,
SMC_NETLINK_GET_STATS,
SMC_NETLINK_GET_FBACK_STATS,
SMC_NETLINK_DUMP_UEID,
SMC_NETLINK_ADD_UEID,
SMC_NETLINK_REMOVE_UEID,
SMC_NETLINK_FLUSH_UEID,
};
/* SMC_GENL_FAMILY top level attributes */
@@ -242,4 +249,12 @@ enum {
__SMC_NLA_FBACK_STATS_MAX,
SMC_NLA_FBACK_STATS_MAX = __SMC_NLA_FBACK_STATS_MAX - 1
};
/* SMC_NETLINK_UEID attributes */
enum {
SMC_NLA_EID_TABLE_UNSPEC,
SMC_NLA_EID_TABLE_ENTRY, /* string */
__SMC_NLA_EID_TABLE_MAX,
SMC_NLA_EID_TABLE_MAX = __SMC_NLA_EID_TABLE_MAX - 1
};
#endif /* _UAPI_LINUX_SMC_H */