From: Karsten Graul <kgraul@linux.ibm.com>
Date: Thu, 30 Apr 2020 15:55:40 +0200
Subject: net/smc: introduce link group type
Git-commit: 81e6e5e70df46bb5b205e53f2b7885e49a9d4974
Patch-mainline: v5.8-rc1
References: jsc#SLE-13763
Add a type field to the link group which reflects the current link group
redundancy state.
Signed-off-by: Karsten Graul <kgraul@linux.ibm.com>
Reviewed-by: Ursula Braun <ubraun@linux.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Acked-by: Petr Tesarik <ptesarik@suse.com>
---
net/smc/smc_core.h | 10 ++++++++++
1 file changed, 10 insertions(+)
--- a/net/smc/smc_core.h
+++ b/net/smc/smc_core.h
@@ -197,6 +197,14 @@ struct smc_rtoken { /* address/key of
struct smcd_dev;
+enum smc_lgr_type { /* redundancy state of lgr */
+ SMC_LGR_NONE, /* no active links, lgr to be deleted */
+ SMC_LGR_SINGLE, /* 1 active RNIC on each peer */
+ SMC_LGR_SYMMETRIC, /* 2 active RNICs on each peer */
+ SMC_LGR_ASYMMETRIC_PEER, /* local has 2, peer 1 active RNICs */
+ SMC_LGR_ASYMMETRIC_LOCAL, /* local has 1, peer 2 active RNICs */
+};
+
enum smc_llc_flowtype {
SMC_LLC_FLOW_NONE = 0,
SMC_LLC_FLOW_ADD_LINK = 2,
@@ -246,6 +254,8 @@ struct smc_link_group {
DECLARE_BITMAP(rtokens_used_mask, SMC_RMBS_PER_LGR_MAX);
/* used rtoken elements */
u8 next_link_id;
+ enum smc_lgr_type type;
+ /* redundancy state */
struct list_head llc_event_q;
/* queue for llc events */
spinlock_t llc_event_q_lock;