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Diffstat (limited to 'net/smc/smc_core.h')
-rw-r--r--net/smc/smc_core.h31
1 files changed, 23 insertions, 8 deletions
diff --git a/net/smc/smc_core.h b/net/smc/smc_core.h
index b013cb43a327..19c44bf4e391 100644
--- a/net/smc/smc_core.h
+++ b/net/smc/smc_core.h
@@ -37,6 +37,14 @@ struct smc_wr_buf {
u8 raw[SMC_WR_BUF_SIZE];
};
+#define SMC_WR_REG_MR_WAIT_TIME (5 * HZ)/* wait time for ib_wr_reg_mr result */
+
+enum smc_wr_reg_state {
+ POSTED, /* ib_wr_reg_mr request posted */
+ CONFIRMED, /* ib_wr_reg_mr response: successful */
+ FAILED /* ib_wr_reg_mr response: failure */
+};
+
struct smc_link {
struct smc_ib_device *smcibdev; /* ib-device */
u8 ibport; /* port - values 1 | 2 */
@@ -65,6 +73,10 @@ struct smc_link {
u64 wr_rx_id; /* seq # of last recv WR */
u32 wr_rx_cnt; /* number of WR recv buffers */
+ struct ib_reg_wr wr_reg; /* WR register memory region */
+ wait_queue_head_t wr_reg_wait; /* wait for wr_reg result */
+ enum smc_wr_reg_state wr_reg_state; /* state of wr_reg request */
+
union ib_gid gid; /* gid matching used vlan id */
u32 peer_qpn; /* QP number of peer */
enum ib_mtu path_mtu; /* used mtu */
@@ -90,14 +102,15 @@ struct smc_link {
/* tx/rx buffer list element for sndbufs list and rmbs list of a lgr */
struct smc_buf_desc {
struct list_head list;
- u64 dma_addr[SMC_LINKS_PER_LGR_MAX];
- /* mapped address of buffer */
void *cpu_addr; /* virtual address of buffer */
- u32 rkey[SMC_LINKS_PER_LGR_MAX];
- /* for rmb only:
- * rkey provided to peer
+ struct sg_table sgt[SMC_LINKS_PER_LGR_MAX];/* virtual buffer */
+ struct ib_mr *mr_rx[SMC_LINKS_PER_LGR_MAX];
+ /* for rmb only: memory region
+ * incl. rkey provided to peer
*/
+ u32 order; /* allocation order */
u32 used; /* currently used / unused */
+ bool reused; /* new created / reused */
};
struct smc_rtoken { /* address/key of remote RMB */
@@ -173,9 +186,11 @@ struct smc_clc_msg_accept_confirm;
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_buf_create(struct smc_sock *smc);
int smc_rmb_rtoken_handling(struct smc_connection *conn,
struct smc_clc_msg_accept_confirm *clc);
-
+void smc_sndbuf_sync_sg_for_cpu(struct smc_connection *conn);
+void smc_sndbuf_sync_sg_for_device(struct smc_connection *conn);
+void smc_rmb_sync_sg_for_cpu(struct smc_connection *conn);
+void smc_rmb_sync_sg_for_device(struct smc_connection *conn);
#endif