From: Stefan Raspl <raspl@linux.ibm.com>
Subject: net/smc: cleanup smc_llc.h and smc_clc.h headers
Patch-mainline: v4.17-rc1
Git-commit: 0f6271264afd975bc599d6f30f3693e9aea57036
References: FATE#325694, LTC#167874, bsc#1113480

Summary:     net/smc: SMC-R MVP
Description: Add latest upstream patches to push SMC-R to the MVP level

Upstream-Description:

             net/smc: cleanup smc_llc.h and smc_clc.h headers

             Remove structures used internal only from headers.
             And remove an extra function parameter.

             Signed-off-by: Stefan Raspl <raspl@linux.vnet.ibm.com>
             Signed-off-by: Ursula Braun <ubraun@linux.vnet.ibm.com>
             Signed-off-by: David S. Miller <davem@davemloft.net>

Signed-off-by: Stefan Raspl <raspl@linux.ibm.com>
Acked-by: Petr Tesarik <ptesarik@suse.com>
---
 net/smc/af_smc.c  |    8 ++++----
 net/smc/smc_clc.c |    3 +++
 net/smc/smc_clc.h |    6 ------
 net/smc/smc_llc.c |   30 ++++++++++++++++++++++++++++++
 net/smc/smc_llc.h |   28 ----------------------------
 5 files changed, 37 insertions(+), 38 deletions(-)

--- a/net/smc/af_smc.c
+++ b/net/smc/af_smc.c
@@ -313,7 +313,7 @@ out:
 	return rc;
 }
 
-static int smc_clnt_conf_first_link(struct smc_sock *smc, union ib_gid *gid)
+static int smc_clnt_conf_first_link(struct smc_sock *smc)
 {
 	struct smc_link_group *lgr = smc->conn.lgr;
 	struct smc_link *link;
@@ -347,7 +347,8 @@ static int smc_clnt_conf_first_link(stru
 	/* send CONFIRM LINK response over RoCE fabric */
 	rc = smc_llc_send_confirm_link(link,
 				       link->smcibdev->mac[link->ibport - 1],
-				       gid, SMC_LLC_RESP);
+				       &link->smcibdev->gid[link->ibport - 1],
+				       SMC_LLC_RESP);
 	if (rc < 0)
 		return SMC_CLC_DECL_TCL;
 
@@ -499,8 +500,7 @@ static int smc_connect_rdma(struct smc_s
 
 	if (local_contact == SMC_FIRST_CONTACT) {
 		/* QP confirmation over RoCE fabric */
-		reason_code = smc_clnt_conf_first_link(
-			smc, &smcibdev->gid[ibport - 1]);
+		reason_code = smc_clnt_conf_first_link(smc);
 		if (reason_code < 0) {
 			rc = reason_code;
 			goto out_err_unlock;
--- a/net/smc/smc_clc.c
+++ b/net/smc/smc_clc.c
@@ -21,6 +21,9 @@
 #include "smc_clc.h"
 #include "smc_ib.h"
 
+/* eye catcher "SMCR" EBCDIC for CLC messages */
+static const char SMC_EYECATCHER[4] = {'\xe2', '\xd4', '\xc3', '\xd9'};
+
 /* check if received message has a correct header length and contains valid
  * heading and trailing eyecatchers
  */
--- a/net/smc/smc_clc.h
+++ b/net/smc/smc_clc.h
@@ -21,9 +21,6 @@
 #define SMC_CLC_CONFIRM		0x03
 #define SMC_CLC_DECLINE		0x04
 
-/* eye catcher "SMCR" EBCDIC for CLC messages */
-static const char SMC_EYECATCHER[4] = {'\xe2', '\xd4', '\xc3', '\xd9'};
-
 #define SMC_CLC_V1		0x1		/* SMC version                */
 #define CLC_WAIT_TIME		(6 * HZ)	/* max. wait time on clcsock  */
 #define SMC_CLC_DECL_MEM	0x01010000  /* insufficient memory resources  */
@@ -123,9 +120,6 @@ smc_clc_proposal_get_prefix(struct smc_c
 	       ((u8 *)pclc + sizeof(*pclc) + ntohs(pclc->iparea_offset));
 }
 
-struct smc_sock;
-struct smc_ib_device;
-
 int smc_clc_wait_msg(struct smc_sock *smc, void *buf, int buflen,
 		     u8 expected_type);
 int smc_clc_send_decline(struct smc_sock *smc, u32 peer_diag_info);
--- a/net/smc/smc_llc.c
+++ b/net/smc/smc_llc.c
@@ -20,6 +20,36 @@
 #include "smc_clc.h"
 #include "smc_llc.h"
 
+#define SMC_LLC_DATA_LEN		40
+
+struct smc_llc_hdr {
+	struct smc_wr_rx_hdr common;
+	u8 length;	/* 44 */
+	u8 reserved;
+	u8 flags;
+};
+
+struct smc_llc_msg_confirm_link {	/* type 0x01 */
+	struct smc_llc_hdr hd;
+	u8 sender_mac[ETH_ALEN];
+	u8 sender_gid[SMC_GID_SIZE];
+	u8 sender_qp_num[3];
+	u8 link_num;
+	u8 link_uid[SMC_LGR_ID_SIZE];
+	u8 max_links;
+	u8 reserved[9];
+};
+
+union smc_llc_msg {
+	struct smc_llc_msg_confirm_link confirm_link;
+	struct {
+		struct smc_llc_hdr hdr;
+		u8 data[SMC_LLC_DATA_LEN];
+	} raw;
+};
+
+#define SMC_LLC_FLAG_RESP		0x80
+
 /********************************** send *************************************/
 
 struct smc_llc_tx_pend {
--- a/net/smc/smc_llc.h
+++ b/net/smc/smc_llc.h
@@ -27,34 +27,6 @@ enum smc_llc_msg_type {
 	SMC_LLC_CONFIRM_LINK		= 0x01,
 };
 
-#define SMC_LLC_DATA_LEN		40
-
-struct smc_llc_hdr {
-	struct smc_wr_rx_hdr common;
-	u8 length;	/* 44 */
-	u8 reserved;
-	u8 flags;
-};
-
-struct smc_llc_msg_confirm_link {	/* type 0x01 */
-	struct smc_llc_hdr hd;
-	u8 sender_mac[ETH_ALEN];
-	u8 sender_gid[SMC_GID_SIZE];
-	u8 sender_qp_num[3];
-	u8 link_num;
-	u8 link_uid[SMC_LGR_ID_SIZE];
-	u8 max_links;
-	u8 reserved[9];
-};
-
-union smc_llc_msg {
-	struct smc_llc_msg_confirm_link confirm_link;
-	struct {
-		struct smc_llc_hdr hdr;
-		u8 data[SMC_LLC_DATA_LEN];
-	} raw;
-};
-
 /* transmit */
 int smc_llc_send_confirm_link(struct smc_link *lnk, u8 mac[], union ib_gid *gid,
 			      enum smc_llc_reqresp reqresp);