net/smc: rename connection index to RMBE index

The connection index is actually a RMBE index. So, this patch changes
the name accordingly.
Signed-off-by: NHans Wippel <hwippel@linux.ibm.com>
Signed-off-by: NUrsula Braun <ubraun@linux.ibm.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

net/smc/af_smc.c

@@ -377,7 +377,7 @@ static int smc_clnt_conf_first_link(struct smc_sock *smc)
 static void smc_conn_save_peer_info(struct smc_sock *smc,
 				    struct smc_clc_msg_accept_confirm *clc)
 {
-	smc->conn.peer_conn_idx = clc->conn_idx;
+	smc->conn.peer_rmbe_idx = clc->rmbe_idx;
 	smc->conn.local_tx_ctrl.token = ntohl(clc->rmbe_alert_token);
 	smc->conn.peer_rmbe_size = smc_uncompress_bufsize(clc->rmbe_size);
 	atomic_set(&smc->conn.peer_rmbe_space, smc->conn.peer_rmbe_size);

net/smc/smc.h

@@ -118,7 +118,7 @@ struct smc_connection {
 	struct rb_node		alert_node;
 	struct smc_link_group	*lgr;		/* link group of connection */
 	u32			alert_token_local; /* unique conn. id */
-	u8			peer_conn_idx;	/* from tcp handshake */
+	u8			peer_rmbe_idx;	/* from tcp handshake */
 	int			peer_rmbe_size;	/* size of peer rx buffer */
 	atomic_t		peer_rmbe_space;/* remaining free bytes in peer
 						 * rmbe

net/smc/smc_clc.c

@@ -442,7 +442,7 @@ int smc_clc_send_confirm(struct smc_sock *smc)
 	hton24(cclc.qpn, link->roce_qp->qp_num);
 	cclc.rmb_rkey =
 		htonl(conn->rmb_desc->mr_rx[SMC_SINGLE_LINK]->rkey);
-	cclc.conn_idx = 1; /* for now: 1 RMB = 1 RMBE */
+	cclc.rmbe_idx = 1; /* for now: 1 RMB = 1 RMBE */
 	cclc.rmbe_alert_token = htonl(conn->alert_token_local);
 	cclc.qp_mtu = min(link->path_mtu, link->peer_mtu);
 	cclc.rmbe_size = conn->rmbe_size_short;
@@ -494,7 +494,7 @@ int smc_clc_send_accept(struct smc_sock *new_smc, int srv_first_contact)
 	hton24(aclc.qpn, link->roce_qp->qp_num);
 	aclc.rmb_rkey =
 		htonl(conn->rmb_desc->mr_rx[SMC_SINGLE_LINK]->rkey);
-	aclc.conn_idx = 1;			/* as long as 1 RMB = 1 RMBE */
+	aclc.rmbe_idx = 1;			/* as long as 1 RMB = 1 RMBE */
 	aclc.rmbe_alert_token = htonl(conn->alert_token_local);
 	aclc.qp_mtu = link->path_mtu;
 	aclc.rmbe_size = conn->rmbe_size_short,

net/smc/smc_clc.h

@@ -97,7 +97,7 @@ struct smc_clc_msg_accept_confirm {	/* clc accept / confirm message */
 	struct smc_clc_msg_local lcl;
 	u8 qpn[3];		/* QP number */
 	__be32 rmb_rkey;	/* RMB rkey */
-	u8 conn_idx;		/* Connection index, which RMBE in RMB */
+	u8 rmbe_idx;		/* Index of RMBE in RMB */
 	__be32 rmbe_alert_token;/* unique connection id */
 #if defined(__BIG_ENDIAN_BITFIELD)
 	u8 rmbe_size : 4,	/* RMBE buf size (compressed notation) */

net/smc/smc_tx.c

@@ -261,7 +261,7 @@ static int smc_tx_rdma_write(struct smc_connection *conn, int peer_rmbe_offset,
 	rdma_wr.remote_addr =
 		lgr->rtokens[conn->rtoken_idx][SMC_SINGLE_LINK].dma_addr +
 		/* RMBE within RMB */
-		((conn->peer_conn_idx - 1) * conn->peer_rmbe_size) +
+		((conn->peer_rmbe_idx - 1) * conn->peer_rmbe_size) +
 		/* offset within RMBE */
 		peer_rmbe_offset;
 	rdma_wr.rkey = lgr->rtokens[conn->rtoken_idx][SMC_SINGLE_LINK].rkey;