File net-smc-add-support-for-user-defined-EIDs of Package linux-glibc-devel.29113
From: Karsten Graul <kgraul@linux.ibm.com>
Date: Tue, 14 Sep 2021 10:35:05 +0200
Subject: net/smc: add support for user defined EIDs
Git-commit: fa0866625543b4d8b3d026e4e0ef5ec25a453920
Patch-mainline: v5.16-rc1
References: jsc#SLE-18331
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>
Acked-by: Petr Tesarik <ptesarik@suse.com>
---
include/uapi/linux/smc.h | 15 ++
net/smc/af_smc.c | 34 +++---
net/smc/smc.h | 3
net/smc/smc_clc.c | 263 ++++++++++++++++++++++++++++++++++++++++++++---
net/smc/smc_clc.h | 16 ++
net/smc/smc_core.h | 1
net/smc/smc_netlink.c | 32 +++++
net/smc/smc_netlink.h | 2
8 files changed, 335 insertions(+), 31 deletions(-)
--- a/include/linux/smc.h
+++ b/include/linux/smc.h
@@ -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 /* _LINUX_SMC_H */
