[PATCH] IB: Add the kernel CM implementation
Add the kernel CM implementation
Signed-off-by: Sean Hefty <sean.hefty@intel.com>
Signed-off-by: Hal Rosenstock <halr@voltaire.com>
Cc: Roland Dreier <rolandd@cisco.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
diff --git a/drivers/infiniband/core/cm_msgs.h b/drivers/infiniband/core/cm_msgs.h
new file mode 100644
index 0000000..15a309a
--- /dev/null
+++ b/drivers/infiniband/core/cm_msgs.h
@@ -0,0 +1,819 @@
+/*
+ * Copyright (c) 2004 Intel Corporation. All rights reserved.
+ * Copyright (c) 2004 Topspin Corporation. All rights reserved.
+ * Copyright (c) 2004 Voltaire Corporation. All rights reserved.
+ *
+ * This software is available to you under a choice of one of two
+ * licenses. You may choose to be licensed under the terms of the GNU
+ * General Public License (GPL) Version 2, available from the file
+ * COPYING the madirectory of this source tree, or the
+ * OpenIB.org BSD license below:
+ *
+ * Redistribution and use source and binary forms, with or
+ * withmodification, are permitted provided that the following
+ * conditions are met:
+ *
+ * - Redistributions of source code must retathe above
+ * copyright notice, this list of conditions and the following
+ * disclaimer.
+ *
+ * - Redistributions binary form must reproduce the above
+ * copyright notice, this list of conditions and the following
+ * disclaimer the documentation and/or other materials
+ * provided with the distribution.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHWARRANTY OF ANY KIND,
+ * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+ * NONINFRINGEMENT. NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
+ * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER AN
+ * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS THE
+ * SOFTWARE.
+ */
+#if !defined(CM_MSGS_H)
+#define CM_MSGS_H
+
+#include <ib_mad.h>
+
+/*
+ * Parameters to routines below should be in network-byte order, and values
+ * are returned in network-byte order.
+ */
+
+#define IB_CM_CLASS_VERSION 2 /* IB specification 1.2 */
+
+enum cm_msg_attr_id {
+ CM_REQ_ATTR_ID = __constant_htons(0x0010),
+ CM_MRA_ATTR_ID = __constant_htons(0x0011),
+ CM_REJ_ATTR_ID = __constant_htons(0x0012),
+ CM_REP_ATTR_ID = __constant_htons(0x0013),
+ CM_RTU_ATTR_ID = __constant_htons(0x0014),
+ CM_DREQ_ATTR_ID = __constant_htons(0x0015),
+ CM_DREP_ATTR_ID = __constant_htons(0x0016),
+ CM_SIDR_REQ_ATTR_ID = __constant_htons(0x0017),
+ CM_SIDR_REP_ATTR_ID = __constant_htons(0x0018),
+ CM_LAP_ATTR_ID = __constant_htons(0x0019),
+ CM_APR_ATTR_ID = __constant_htons(0x001A)
+};
+
+enum cm_msg_sequence {
+ CM_MSG_SEQUENCE_REQ,
+ CM_MSG_SEQUENCE_LAP,
+ CM_MSG_SEQUENCE_DREQ,
+ CM_MSG_SEQUENCE_SIDR
+};
+
+struct cm_req_msg {
+ struct ib_mad_hdr hdr;
+
+ u32 local_comm_id;
+ u32 rsvd4;
+ u64 service_id;
+ u64 local_ca_guid;
+ u32 rsvd24;
+ u32 local_qkey;
+ /* local QPN:24, responder resources:8 */
+ u32 offset32;
+ /* local EECN:24, initiator depth:8 */
+ u32 offset36;
+ /*
+ * remote EECN:24, remote CM response timeout:5,
+ * transport service type:2, end-to-end flow control:1
+ */
+ u32 offset40;
+ /* starting PSN:24, local CM response timeout:5, retry count:3 */
+ u32 offset44;
+ u16 pkey;
+ /* path MTU:4, RDC exists:1, RNR retry count:3. */
+ u8 offset50;
+ /* max CM Retries:4, SRQ:1, rsvd:3 */
+ u8 offset51;
+
+ u16 primary_local_lid;
+ u16 primary_remote_lid;
+ union ib_gid primary_local_gid;
+ union ib_gid primary_remote_gid;
+ /* flow label:20, rsvd:6, packet rate:6 */
+ u32 primary_offset88;
+ u8 primary_traffic_class;
+ u8 primary_hop_limit;
+ /* SL:4, subnet local:1, rsvd:3 */
+ u8 primary_offset94;
+ /* local ACK timeout:5, rsvd:3 */
+ u8 primary_offset95;
+
+ u16 alt_local_lid;
+ u16 alt_remote_lid;
+ union ib_gid alt_local_gid;
+ union ib_gid alt_remote_gid;
+ /* flow label:20, rsvd:6, packet rate:6 */
+ u32 alt_offset132;
+ u8 alt_traffic_class;
+ u8 alt_hop_limit;
+ /* SL:4, subnet local:1, rsvd:3 */
+ u8 alt_offset138;
+ /* local ACK timeout:5, rsvd:3 */
+ u8 alt_offset139;
+
+ u8 private_data[IB_CM_REQ_PRIVATE_DATA_SIZE];
+
+} __attribute__ ((packed));
+
+static inline u32 cm_req_get_local_qpn(struct cm_req_msg *req_msg)
+{
+ return cpu_to_be32(be32_to_cpu(req_msg->offset32) >> 8);
+}
+
+static inline void cm_req_set_local_qpn(struct cm_req_msg *req_msg, u32 qpn)
+{
+ req_msg->offset32 = cpu_to_be32((be32_to_cpu(qpn) << 8) |
+ (be32_to_cpu(req_msg->offset32) &
+ 0x000000FF));
+}
+
+static inline u8 cm_req_get_resp_res(struct cm_req_msg *req_msg)
+{
+ return (u8) be32_to_cpu(req_msg->offset32);
+}
+
+static inline void cm_req_set_resp_res(struct cm_req_msg *req_msg, u8 resp_res)
+{
+ req_msg->offset32 = cpu_to_be32(resp_res |
+ (be32_to_cpu(req_msg->offset32) &
+ 0xFFFFFF00));
+}
+
+static inline u8 cm_req_get_init_depth(struct cm_req_msg *req_msg)
+{
+ return (u8) be32_to_cpu(req_msg->offset36);
+}
+
+static inline void cm_req_set_init_depth(struct cm_req_msg *req_msg,
+ u8 init_depth)
+{
+ req_msg->offset36 = cpu_to_be32(init_depth |
+ (be32_to_cpu(req_msg->offset36) &
+ 0xFFFFFF00));
+}
+
+static inline u8 cm_req_get_remote_resp_timeout(struct cm_req_msg *req_msg)
+{
+ return (u8) ((be32_to_cpu(req_msg->offset40) & 0xF8) >> 3);
+}
+
+static inline void cm_req_set_remote_resp_timeout(struct cm_req_msg *req_msg,
+ u8 resp_timeout)
+{
+ req_msg->offset40 = cpu_to_be32((resp_timeout << 3) |
+ (be32_to_cpu(req_msg->offset40) &
+ 0xFFFFFF07));
+}
+
+static inline enum ib_qp_type cm_req_get_qp_type(struct cm_req_msg *req_msg)
+{
+ u8 transport_type = (u8) (be32_to_cpu(req_msg->offset40) & 0x06) >> 1;
+ switch(transport_type) {
+ case 0: return IB_QPT_RC;
+ case 1: return IB_QPT_UC;
+ default: return 0;
+ }
+}
+
+static inline void cm_req_set_qp_type(struct cm_req_msg *req_msg,
+ enum ib_qp_type qp_type)
+{
+ switch(qp_type) {
+ case IB_QPT_UC:
+ req_msg->offset40 = cpu_to_be32((be32_to_cpu(
+ req_msg->offset40) &
+ 0xFFFFFFF9) | 0x2);
+ default:
+ req_msg->offset40 = cpu_to_be32(be32_to_cpu(
+ req_msg->offset40) &
+ 0xFFFFFFF9);
+ }
+}
+
+static inline u8 cm_req_get_flow_ctrl(struct cm_req_msg *req_msg)
+{
+ return be32_to_cpu(req_msg->offset40) & 0x1;
+}
+
+static inline void cm_req_set_flow_ctrl(struct cm_req_msg *req_msg,
+ u8 flow_ctrl)
+{
+ req_msg->offset40 = cpu_to_be32((flow_ctrl & 0x1) |
+ (be32_to_cpu(req_msg->offset40) &
+ 0xFFFFFFFE));
+}
+
+static inline u32 cm_req_get_starting_psn(struct cm_req_msg *req_msg)
+{
+ return cpu_to_be32(be32_to_cpu(req_msg->offset44) >> 8);
+}
+
+static inline void cm_req_set_starting_psn(struct cm_req_msg *req_msg,
+ u32 starting_psn)
+{
+ req_msg->offset44 = cpu_to_be32((be32_to_cpu(starting_psn) << 8) |
+ (be32_to_cpu(req_msg->offset44) & 0x000000FF));
+}
+
+static inline u8 cm_req_get_local_resp_timeout(struct cm_req_msg *req_msg)
+{
+ return (u8) ((be32_to_cpu(req_msg->offset44) & 0xF8) >> 3);
+}
+
+static inline void cm_req_set_local_resp_timeout(struct cm_req_msg *req_msg,
+ u8 resp_timeout)
+{
+ req_msg->offset44 = cpu_to_be32((resp_timeout << 3) |
+ (be32_to_cpu(req_msg->offset44) & 0xFFFFFF07));
+}
+
+static inline u8 cm_req_get_retry_count(struct cm_req_msg *req_msg)
+{
+ return (u8) (be32_to_cpu(req_msg->offset44) & 0x7);
+}
+
+static inline void cm_req_set_retry_count(struct cm_req_msg *req_msg,
+ u8 retry_count)
+{
+ req_msg->offset44 = cpu_to_be32((retry_count & 0x7) |
+ (be32_to_cpu(req_msg->offset44) & 0xFFFFFFF8));
+}
+
+static inline u8 cm_req_get_path_mtu(struct cm_req_msg *req_msg)
+{
+ return req_msg->offset50 >> 4;
+}
+
+static inline void cm_req_set_path_mtu(struct cm_req_msg *req_msg, u8 path_mtu)
+{
+ req_msg->offset50 = (u8) ((req_msg->offset50 & 0xF) | (path_mtu << 4));
+}
+
+static inline u8 cm_req_get_rnr_retry_count(struct cm_req_msg *req_msg)
+{
+ return req_msg->offset50 & 0x7;
+}
+
+static inline void cm_req_set_rnr_retry_count(struct cm_req_msg *req_msg,
+ u8 rnr_retry_count)
+{
+ req_msg->offset50 = (u8) ((req_msg->offset50 & 0xF8) |
+ (rnr_retry_count & 0x7));
+}
+
+static inline u8 cm_req_get_max_cm_retries(struct cm_req_msg *req_msg)
+{
+ return req_msg->offset51 >> 4;
+}
+
+static inline void cm_req_set_max_cm_retries(struct cm_req_msg *req_msg,
+ u8 retries)
+{
+ req_msg->offset51 = (u8) ((req_msg->offset51 & 0xF) | (retries << 4));
+}
+
+static inline u8 cm_req_get_srq(struct cm_req_msg *req_msg)
+{
+ return (req_msg->offset51 & 0x8) >> 3;
+}
+
+static inline void cm_req_set_srq(struct cm_req_msg *req_msg, u8 srq)
+{
+ req_msg->offset51 = (u8) ((req_msg->offset51 & 0xF7) |
+ ((srq & 0x1) << 3));
+}
+
+static inline u32 cm_req_get_primary_flow_label(struct cm_req_msg *req_msg)
+{
+ return cpu_to_be32((be32_to_cpu(req_msg->primary_offset88) >> 12));
+}
+
+static inline void cm_req_set_primary_flow_label(struct cm_req_msg *req_msg,
+ u32 flow_label)
+{
+ req_msg->primary_offset88 = cpu_to_be32(
+ (be32_to_cpu(req_msg->primary_offset88) &
+ 0x00000FFF) |
+ (be32_to_cpu(flow_label) << 12));
+}
+
+static inline u8 cm_req_get_primary_packet_rate(struct cm_req_msg *req_msg)
+{
+ return (u8) (be32_to_cpu(req_msg->primary_offset88) & 0x3F);
+}
+
+static inline void cm_req_set_primary_packet_rate(struct cm_req_msg *req_msg,
+ u8 rate)
+{
+ req_msg->primary_offset88 = cpu_to_be32(
+ (be32_to_cpu(req_msg->primary_offset88) &
+ 0xFFFFFFC0) | (rate & 0x3F));
+}
+
+static inline u8 cm_req_get_primary_sl(struct cm_req_msg *req_msg)
+{
+ return (u8) (req_msg->primary_offset94 >> 4);
+}
+
+static inline void cm_req_set_primary_sl(struct cm_req_msg *req_msg, u8 sl)
+{
+ req_msg->primary_offset94 = (u8) ((req_msg->primary_offset94 & 0x0F) |
+ (sl << 4));
+}
+
+static inline u8 cm_req_get_primary_subnet_local(struct cm_req_msg *req_msg)
+{
+ return (u8) ((req_msg->primary_offset94 & 0x08) >> 3);
+}
+
+static inline void cm_req_set_primary_subnet_local(struct cm_req_msg *req_msg,
+ u8 subnet_local)
+{
+ req_msg->primary_offset94 = (u8) ((req_msg->primary_offset94 & 0xF7) |
+ ((subnet_local & 0x1) << 3));
+}
+
+static inline u8 cm_req_get_primary_local_ack_timeout(struct cm_req_msg *req_msg)
+{
+ return (u8) (req_msg->primary_offset95 >> 3);
+}
+
+static inline void cm_req_set_primary_local_ack_timeout(struct cm_req_msg *req_msg,
+ u8 local_ack_timeout)
+{
+ req_msg->primary_offset95 = (u8) ((req_msg->primary_offset95 & 0x07) |
+ (local_ack_timeout << 3));
+}
+
+static inline u32 cm_req_get_alt_flow_label(struct cm_req_msg *req_msg)
+{
+ return cpu_to_be32((be32_to_cpu(req_msg->alt_offset132) >> 12));
+}
+
+static inline void cm_req_set_alt_flow_label(struct cm_req_msg *req_msg,
+ u32 flow_label)
+{
+ req_msg->alt_offset132 = cpu_to_be32(
+ (be32_to_cpu(req_msg->alt_offset132) &
+ 0x00000FFF) |
+ (be32_to_cpu(flow_label) << 12));
+}
+
+static inline u8 cm_req_get_alt_packet_rate(struct cm_req_msg *req_msg)
+{
+ return (u8) (be32_to_cpu(req_msg->alt_offset132) & 0x3F);
+}
+
+static inline void cm_req_set_alt_packet_rate(struct cm_req_msg *req_msg,
+ u8 rate)
+{
+ req_msg->alt_offset132 = cpu_to_be32(
+ (be32_to_cpu(req_msg->alt_offset132) &
+ 0xFFFFFFC0) | (rate & 0x3F));
+}
+
+static inline u8 cm_req_get_alt_sl(struct cm_req_msg *req_msg)
+{
+ return (u8) (req_msg->alt_offset138 >> 4);
+}
+
+static inline void cm_req_set_alt_sl(struct cm_req_msg *req_msg, u8 sl)
+{
+ req_msg->alt_offset138 = (u8) ((req_msg->alt_offset138 & 0x0F) |
+ (sl << 4));
+}
+
+static inline u8 cm_req_get_alt_subnet_local(struct cm_req_msg *req_msg)
+{
+ return (u8) ((req_msg->alt_offset138 & 0x08) >> 3);
+}
+
+static inline void cm_req_set_alt_subnet_local(struct cm_req_msg *req_msg,
+ u8 subnet_local)
+{
+ req_msg->alt_offset138 = (u8) ((req_msg->alt_offset138 & 0xF7) |
+ ((subnet_local & 0x1) << 3));
+}
+
+static inline u8 cm_req_get_alt_local_ack_timeout(struct cm_req_msg *req_msg)
+{
+ return (u8) (req_msg->alt_offset139 >> 3);
+}
+
+static inline void cm_req_set_alt_local_ack_timeout(struct cm_req_msg *req_msg,
+ u8 local_ack_timeout)
+{
+ req_msg->alt_offset139 = (u8) ((req_msg->alt_offset139 & 0x07) |
+ (local_ack_timeout << 3));
+}
+
+/* Message REJected or MRAed */
+enum cm_msg_response {
+ CM_MSG_RESPONSE_REQ = 0x0,
+ CM_MSG_RESPONSE_REP = 0x1,
+ CM_MSG_RESPONSE_OTHER = 0x2
+};
+
+ struct cm_mra_msg {
+ struct ib_mad_hdr hdr;
+
+ u32 local_comm_id;
+ u32 remote_comm_id;
+ /* message MRAed:2, rsvd:6 */
+ u8 offset8;
+ /* service timeout:5, rsvd:3 */
+ u8 offset9;
+
+ u8 private_data[IB_CM_MRA_PRIVATE_DATA_SIZE];
+
+} __attribute__ ((packed));
+
+static inline u8 cm_mra_get_msg_mraed(struct cm_mra_msg *mra_msg)
+{
+ return (u8) (mra_msg->offset8 >> 6);
+}
+
+static inline void cm_mra_set_msg_mraed(struct cm_mra_msg *mra_msg, u8 msg)
+{
+ mra_msg->offset8 = (u8) ((mra_msg->offset8 & 0x3F) | (msg << 6));
+}
+
+static inline u8 cm_mra_get_service_timeout(struct cm_mra_msg *mra_msg)
+{
+ return (u8) (mra_msg->offset9 >> 3);
+}
+
+static inline void cm_mra_set_service_timeout(struct cm_mra_msg *mra_msg,
+ u8 service_timeout)
+{
+ mra_msg->offset9 = (u8) ((mra_msg->offset9 & 0x07) |
+ (service_timeout << 3));
+}
+
+struct cm_rej_msg {
+ struct ib_mad_hdr hdr;
+
+ u32 local_comm_id;
+ u32 remote_comm_id;
+ /* message REJected:2, rsvd:6 */
+ u8 offset8;
+ /* reject info length:7, rsvd:1. */
+ u8 offset9;
+ u16 reason;
+ u8 ari[IB_CM_REJ_ARI_LENGTH];
+
+ u8 private_data[IB_CM_REJ_PRIVATE_DATA_SIZE];
+
+} __attribute__ ((packed));
+
+static inline u8 cm_rej_get_msg_rejected(struct cm_rej_msg *rej_msg)
+{
+ return (u8) (rej_msg->offset8 >> 6);
+}
+
+static inline void cm_rej_set_msg_rejected(struct cm_rej_msg *rej_msg, u8 msg)
+{
+ rej_msg->offset8 = (u8) ((rej_msg->offset8 & 0x3F) | (msg << 6));
+}
+
+static inline u8 cm_rej_get_reject_info_len(struct cm_rej_msg *rej_msg)
+{
+ return (u8) (rej_msg->offset9 >> 1);
+}
+
+static inline void cm_rej_set_reject_info_len(struct cm_rej_msg *rej_msg,
+ u8 len)
+{
+ rej_msg->offset9 = (u8) ((rej_msg->offset9 & 0x1) | (len << 1));
+}
+
+struct cm_rep_msg {
+ struct ib_mad_hdr hdr;
+
+ u32 local_comm_id;
+ u32 remote_comm_id;
+ u32 local_qkey;
+ /* local QPN:24, rsvd:8 */
+ u32 offset12;
+ /* local EECN:24, rsvd:8 */
+ u32 offset16;
+ /* starting PSN:24 rsvd:8 */
+ u32 offset20;
+ u8 resp_resources;
+ u8 initiator_depth;
+ /* target ACK delay:5, failover accepted:2, end-to-end flow control:1 */
+ u8 offset26;
+ /* RNR retry count:3, SRQ:1, rsvd:5 */
+ u8 offset27;
+ u64 local_ca_guid;
+
+ u8 private_data[IB_CM_REP_PRIVATE_DATA_SIZE];
+
+} __attribute__ ((packed));
+
+static inline u32 cm_rep_get_local_qpn(struct cm_rep_msg *rep_msg)
+{
+ return cpu_to_be32(be32_to_cpu(rep_msg->offset12) >> 8);
+}
+
+static inline void cm_rep_set_local_qpn(struct cm_rep_msg *rep_msg, u32 qpn)
+{
+ rep_msg->offset12 = cpu_to_be32((be32_to_cpu(qpn) << 8) |
+ (be32_to_cpu(rep_msg->offset12) & 0x000000FF));
+}
+
+static inline u32 cm_rep_get_starting_psn(struct cm_rep_msg *rep_msg)
+{
+ return cpu_to_be32(be32_to_cpu(rep_msg->offset20) >> 8);
+}
+
+static inline void cm_rep_set_starting_psn(struct cm_rep_msg *rep_msg,
+ u32 starting_psn)
+{
+ rep_msg->offset20 = cpu_to_be32((be32_to_cpu(starting_psn) << 8) |
+ (be32_to_cpu(rep_msg->offset20) & 0x000000FF));
+}
+
+static inline u8 cm_rep_get_target_ack_delay(struct cm_rep_msg *rep_msg)
+{
+ return (u8) (rep_msg->offset26 >> 3);
+}
+
+static inline void cm_rep_set_target_ack_delay(struct cm_rep_msg *rep_msg,
+ u8 target_ack_delay)
+{
+ rep_msg->offset26 = (u8) ((rep_msg->offset26 & 0x07) |
+ (target_ack_delay << 3));
+}
+
+static inline u8 cm_rep_get_failover(struct cm_rep_msg *rep_msg)
+{
+ return (u8) ((rep_msg->offset26 & 0x06) >> 1);
+}
+
+static inline void cm_rep_set_failover(struct cm_rep_msg *rep_msg, u8 failover)
+{
+ rep_msg->offset26 = (u8) ((rep_msg->offset26 & 0xF9) |
+ ((failover & 0x3) << 1));
+}
+
+static inline u8 cm_rep_get_flow_ctrl(struct cm_rep_msg *rep_msg)
+{
+ return (u8) (rep_msg->offset26 & 0x01);
+}
+
+static inline void cm_rep_set_flow_ctrl(struct cm_rep_msg *rep_msg,
+ u8 flow_ctrl)
+{
+ rep_msg->offset26 = (u8) ((rep_msg->offset26 & 0xFE) |
+ (flow_ctrl & 0x1));
+}
+
+static inline u8 cm_rep_get_rnr_retry_count(struct cm_rep_msg *rep_msg)
+{
+ return (u8) (rep_msg->offset27 >> 5);
+}
+
+static inline void cm_rep_set_rnr_retry_count(struct cm_rep_msg *rep_msg,
+ u8 rnr_retry_count)
+{
+ rep_msg->offset27 = (u8) ((rep_msg->offset27 & 0x1F) |
+ (rnr_retry_count << 5));
+}
+
+static inline u8 cm_rep_get_srq(struct cm_rep_msg *rep_msg)
+{
+ return (u8) ((rep_msg->offset27 >> 4) & 0x1);
+}
+
+static inline void cm_rep_set_srq(struct cm_rep_msg *rep_msg, u8 srq)
+{
+ rep_msg->offset27 = (u8) ((rep_msg->offset27 & 0xEF) |
+ ((srq & 0x1) << 4));
+}
+
+struct cm_rtu_msg {
+ struct ib_mad_hdr hdr;
+
+ u32 local_comm_id;
+ u32 remote_comm_id;
+
+ u8 private_data[IB_CM_RTU_PRIVATE_DATA_SIZE];
+
+} __attribute__ ((packed));
+
+struct cm_dreq_msg {
+ struct ib_mad_hdr hdr;
+
+ u32 local_comm_id;
+ u32 remote_comm_id;
+ /* remote QPN/EECN:24, rsvd:8 */
+ u32 offset8;
+
+ u8 private_data[IB_CM_DREQ_PRIVATE_DATA_SIZE];
+
+} __attribute__ ((packed));
+
+static inline u32 cm_dreq_get_remote_qpn(struct cm_dreq_msg *dreq_msg)
+{
+ return cpu_to_be32(be32_to_cpu(dreq_msg->offset8) >> 8);
+}
+
+static inline void cm_dreq_set_remote_qpn(struct cm_dreq_msg *dreq_msg, u32 qpn)
+{
+ dreq_msg->offset8 = cpu_to_be32((be32_to_cpu(qpn) << 8) |
+ (be32_to_cpu(dreq_msg->offset8) & 0x000000FF));
+}
+
+struct cm_drep_msg {
+ struct ib_mad_hdr hdr;
+
+ u32 local_comm_id;
+ u32 remote_comm_id;
+
+ u8 private_data[IB_CM_DREP_PRIVATE_DATA_SIZE];
+
+} __attribute__ ((packed));
+
+struct cm_lap_msg {
+ struct ib_mad_hdr hdr;
+
+ u32 local_comm_id;
+ u32 remote_comm_id;
+
+ u32 rsvd8;
+ /* remote QPN/EECN:24, remote CM response timeout:5, rsvd:3 */
+ u32 offset12;
+ u32 rsvd16;
+
+ u16 alt_local_lid;
+ u16 alt_remote_lid;
+ union ib_gid alt_local_gid;
+ union ib_gid alt_remote_gid;
+ /* flow label:20, rsvd:4, traffic class:8 */
+ u32 offset56;
+ u8 alt_hop_limit;
+ /* rsvd:2, packet rate:6 */
+ uint8_t offset61;
+ /* SL:4, subnet local:1, rsvd:3 */
+ uint8_t offset62;
+ /* local ACK timeout:5, rsvd:3 */
+ uint8_t offset63;
+
+ u8 private_data[IB_CM_LAP_PRIVATE_DATA_SIZE];
+} __attribute__ ((packed));
+
+static inline u32 cm_lap_get_remote_qpn(struct cm_lap_msg *lap_msg)
+{
+ return cpu_to_be32(be32_to_cpu(lap_msg->offset12) >> 8);
+}
+
+static inline void cm_lap_set_remote_qpn(struct cm_lap_msg *lap_msg, u32 qpn)
+{
+ lap_msg->offset12 = cpu_to_be32((be32_to_cpu(qpn) << 8) |
+ (be32_to_cpu(lap_msg->offset12) &
+ 0x000000FF));
+}
+
+static inline u8 cm_lap_get_remote_resp_timeout(struct cm_lap_msg *lap_msg)
+{
+ return (u8) ((be32_to_cpu(lap_msg->offset12) & 0xF8) >> 3);
+}
+
+static inline void cm_lap_set_remote_resp_timeout(struct cm_lap_msg *lap_msg,
+ u8 resp_timeout)
+{
+ lap_msg->offset12 = cpu_to_be32((resp_timeout << 3) |
+ (be32_to_cpu(lap_msg->offset12) &
+ 0xFFFFFF07));
+}
+
+static inline u32 cm_lap_get_flow_label(struct cm_lap_msg *lap_msg)
+{
+ return be32_to_cpu(lap_msg->offset56) >> 12;
+}
+
+static inline void cm_lap_set_flow_label(struct cm_lap_msg *lap_msg,
+ u32 flow_label)
+{
+ lap_msg->offset56 = cpu_to_be32((flow_label << 12) |
+ (be32_to_cpu(lap_msg->offset56) &
+ 0x00000FFF));
+}
+
+static inline u8 cm_lap_get_traffic_class(struct cm_lap_msg *lap_msg)
+{
+ return (u8) be32_to_cpu(lap_msg->offset56);
+}
+
+static inline void cm_lap_set_traffic_class(struct cm_lap_msg *lap_msg,
+ u8 traffic_class)
+{
+ lap_msg->offset56 = cpu_to_be32(traffic_class |
+ (be32_to_cpu(lap_msg->offset56) &
+ 0xFFFFFF00));
+}
+
+static inline u8 cm_lap_get_packet_rate(struct cm_lap_msg *lap_msg)
+{
+ return lap_msg->offset61 & 0x3F;
+}
+
+static inline void cm_lap_set_packet_rate(struct cm_lap_msg *lap_msg,
+ u8 packet_rate)
+{
+ lap_msg->offset61 = (packet_rate & 0x3F) | (lap_msg->offset61 & 0xC0);
+}
+
+static inline u8 cm_lap_get_sl(struct cm_lap_msg *lap_msg)
+{
+ return lap_msg->offset62 >> 4;
+}
+
+static inline void cm_lap_set_sl(struct cm_lap_msg *lap_msg, u8 sl)
+{
+ lap_msg->offset62 = (sl << 4) | (lap_msg->offset62 & 0x0F);
+}
+
+static inline u8 cm_lap_get_subnet_local(struct cm_lap_msg *lap_msg)
+{
+ return (lap_msg->offset62 >> 3) & 0x1;
+}
+
+static inline void cm_lap_set_subnet_local(struct cm_lap_msg *lap_msg,
+ u8 subnet_local)
+{
+ lap_msg->offset62 = ((subnet_local & 0x1) << 3) |
+ (lap_msg->offset61 & 0xF7);
+}
+static inline u8 cm_lap_get_local_ack_timeout(struct cm_lap_msg *lap_msg)
+{
+ return lap_msg->offset63 >> 3;
+}
+
+static inline void cm_lap_set_local_ack_timeout(struct cm_lap_msg *lap_msg,
+ u8 local_ack_timeout)
+{
+ lap_msg->offset63 = (local_ack_timeout << 3) |
+ (lap_msg->offset63 & 0x07);
+}
+
+struct cm_apr_msg {
+ struct ib_mad_hdr hdr;
+
+ u32 local_comm_id;
+ u32 remote_comm_id;
+
+ u8 info_length;
+ u8 ap_status;
+ u8 info[IB_CM_APR_INFO_LENGTH];
+
+ u8 private_data[IB_CM_APR_PRIVATE_DATA_SIZE];
+} __attribute__ ((packed));
+
+struct cm_sidr_req_msg {
+ struct ib_mad_hdr hdr;
+
+ u32 request_id;
+ u16 pkey;
+ u16 rsvd;
+ u64 service_id;
+
+ u8 private_data[IB_CM_SIDR_REQ_PRIVATE_DATA_SIZE];
+} __attribute__ ((packed));
+
+struct cm_sidr_rep_msg {
+ struct ib_mad_hdr hdr;
+
+ u32 request_id;
+ u8 status;
+ u8 info_length;
+ u16 rsvd;
+ /* QPN:24, rsvd:8 */
+ u32 offset8;
+ u64 service_id;
+ u32 qkey;
+ u8 info[IB_CM_SIDR_REP_INFO_LENGTH];
+
+ u8 private_data[IB_CM_SIDR_REP_PRIVATE_DATA_SIZE];
+} __attribute__ ((packed));
+
+static inline u32 cm_sidr_rep_get_qpn(struct cm_sidr_rep_msg *sidr_rep_msg)
+{
+ return cpu_to_be32(be32_to_cpu(sidr_rep_msg->offset8) >> 8);
+}
+
+static inline void cm_sidr_rep_set_qpn(struct cm_sidr_rep_msg *sidr_rep_msg,
+ u32 qpn)
+{
+ sidr_rep_msg->offset8 = cpu_to_be32((be32_to_cpu(qpn) << 8) |
+ (be32_to_cpu(sidr_rep_msg->offset8) &
+ 0x000000FF));
+}
+
+#endif /* CM_MSGS_H */
