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-rw-r--r--net/smc/smc_core.h18
1 files changed, 18 insertions, 0 deletions
diff --git a/net/smc/smc_core.h b/net/smc/smc_core.h
index ca4587a95450..f5ea52086d6d 100644
--- a/net/smc/smc_core.h
+++ b/net/smc/smc_core.h
@@ -90,9 +90,18 @@ struct smc_buf_desc {
u64 dma_addr[SMC_LINKS_PER_LGR_MAX];
/* mapped address of buffer */
void *cpu_addr; /* virtual address of buffer */
+ struct ib_mr *mr_rx[SMC_LINKS_PER_LGR_MAX];
+ /* for rmb only:
+ * rkey provided to peer
+ */
u32 used; /* currently used / unused */
};
+struct smc_rtoken { /* address/key of remote RMB */
+ u64 dma_addr;
+ u32 rkey;
+};
+
struct smc_link_group {
struct list_head list;
enum smc_lgr_role role; /* client or server */
@@ -109,6 +118,13 @@ struct smc_link_group {
rwlock_t sndbufs_lock; /* protects tx buffers */
struct list_head rmbs[SMC_RMBE_SIZES]; /* rx buffers */
rwlock_t rmbs_lock; /* protects rx buffers */
+ struct smc_rtoken rtokens[SMC_RMBS_PER_LGR_MAX]
+ [SMC_LINKS_PER_LGR_MAX];
+ /* remote addr/key pairs */
+ unsigned long rtokens_used_mask[BITS_TO_LONGS(
+ SMC_RMBS_PER_LGR_MAX)];
+ /* used rtoken elements */
+
struct delayed_work free_work; /* delayed freeing of an lgr */
bool sync_err; /* lgr no longer fits to peer */
};
@@ -153,5 +169,7 @@ void smc_lgr_free(struct smc_link_group *lgr);
void smc_lgr_terminate(struct smc_link_group *lgr);
int smc_sndbuf_create(struct smc_sock *smc);
int smc_rmb_create(struct smc_sock *smc);
+int smc_rmb_rtoken_handling(struct smc_connection *conn,
+ struct smc_clc_msg_accept_confirm *clc);
#endif