drivers/infiniband/hw/hfi1/mad.h - linux - Git at Google

 /* SPDX-License-Identifier: GPL-2.0 OR BSD-3-Clause */
 /*
  * Copyright(c) 2015 - 2017 Intel Corporation.
  */

 #ifndef _HFI1_MAD_H
 #define _HFI1_MAD_H

 #include <rdma/ib_pma.h>
 #include <rdma/opa_smi.h>
 #include <rdma/opa_port_info.h>
 #include "opa_compat.h"

 /*
  * OPA Traps
  */
 #define OPA_TRAP_GID_NOW_IN_SERVICE             cpu_to_be16(64)
 #define OPA_TRAP_GID_OUT_OF_SERVICE             cpu_to_be16(65)
 #define OPA_TRAP_ADD_MULTICAST_GROUP            cpu_to_be16(66)
 #define OPA_TRAL_DEL_MULTICAST_GROUP            cpu_to_be16(67)
 #define OPA_TRAP_UNPATH                         cpu_to_be16(68)
 #define OPA_TRAP_REPATH                         cpu_to_be16(69)
 #define OPA_TRAP_PORT_CHANGE_STATE              cpu_to_be16(128)
 #define OPA_TRAP_LINK_INTEGRITY                 cpu_to_be16(129)
 #define OPA_TRAP_EXCESSIVE_BUFFER_OVERRUN       cpu_to_be16(130)
 #define OPA_TRAP_FLOW_WATCHDOG                  cpu_to_be16(131)
 #define OPA_TRAP_CHANGE_CAPABILITY              cpu_to_be16(144)
 #define OPA_TRAP_CHANGE_SYSGUID                 cpu_to_be16(145)
 #define OPA_TRAP_BAD_M_KEY                      cpu_to_be16(256)
 #define OPA_TRAP_BAD_P_KEY                      cpu_to_be16(257)
 #define OPA_TRAP_BAD_Q_KEY                      cpu_to_be16(258)
 #define OPA_TRAP_SWITCH_BAD_PKEY                cpu_to_be16(259)
 #define OPA_SMA_TRAP_DATA_LINK_WIDTH            cpu_to_be16(2048)

 /*
  * Generic trap/notice other local changes flags (trap 144).
  */
 #define	OPA_NOTICE_TRAP_LWDE_CHG        0x08 /* Link Width Downgrade Enable
 					      * changed
 					      */
 #define OPA_NOTICE_TRAP_LSE_CHG         0x04 /* Link Speed Enable changed */
 #define OPA_NOTICE_TRAP_LWE_CHG         0x02 /* Link Width Enable changed */
 #define OPA_NOTICE_TRAP_NODE_DESC_CHG   0x01

 struct opa_mad_notice_attr {
 	u8 generic_type;
 	u8 prod_type_msb;
 	__be16 prod_type_lsb;
 	__be16 trap_num;
 	__be16 toggle_count;
 	__be32 issuer_lid;
 	__be32 reserved1;
 	union ib_gid issuer_gid;

 	union {
 		struct {
 			u8	details[64];
 		} raw_data;

 		struct {
 			union ib_gid	gid;
 		} __packed ntc_64_65_66_67;

 		struct {
 			__be32	lid;
 		} __packed ntc_128;

 		struct {
 			__be32	lid;		/* where violation happened */
 			u8	port_num;	/* where violation happened */
 		} __packed ntc_129_130_131;

 		struct {
 			__be32	lid;		/* LID where change occurred */
 			__be32	new_cap_mask;	/* new capability mask */
 			__be16	reserved2;
 			__be16	cap_mask3;
 			__be16	change_flags;	/* low 4 bits only */
 		} __packed ntc_144;

 		struct {
 			__be64	new_sys_guid;
 			__be32	lid;		/* lid where sys guid changed */
 		} __packed ntc_145;

 		struct {
 			__be32	lid;
 			__be32	dr_slid;
 			u8	method;
 			u8	dr_trunc_hop;
 			__be16	attr_id;
 			__be32	attr_mod;
 			__be64	mkey;
 			u8	dr_rtn_path[30];
 		} __packed ntc_256;

 		struct {
 			__be32		lid1;
 			__be32		lid2;
 			__be32		key;
 			u8		sl;	/* SL: high 5 bits */
 			u8		reserved3[3];
 			union ib_gid	gid1;
 			union ib_gid	gid2;
 			__be32		qp1;	/* high 8 bits reserved */
 			__be32		qp2;	/* high 8 bits reserved */
 		} __packed ntc_257_258;

 		struct {
 			__be16		flags;	/* low 8 bits reserved */
 			__be16		pkey;
 			__be32		lid1;
 			__be32		lid2;
 			u8		sl;	/* SL: high 5 bits */
 			u8		reserved4[3];
 			union ib_gid	gid1;
 			union ib_gid	gid2;
 			__be32		qp1;	/* high 8 bits reserved */
 			__be32		qp2;	/* high 8 bits reserved */
 		} __packed ntc_259;

 		struct {
 			__be32	lid;
 		} __packed ntc_2048;

 	};
 	u8	class_data[];
 };

 #define IB_VLARB_LOWPRI_0_31    1
 #define IB_VLARB_LOWPRI_32_63   2
 #define IB_VLARB_HIGHPRI_0_31   3
 #define IB_VLARB_HIGHPRI_32_63  4

 #define OPA_MAX_PREEMPT_CAP         32
 #define OPA_VLARB_LOW_ELEMENTS       0
 #define OPA_VLARB_HIGH_ELEMENTS      1
 #define OPA_VLARB_PREEMPT_ELEMENTS   2
 #define OPA_VLARB_PREEMPT_MATRIX     3

 #define IB_PMA_PORT_COUNTERS_CONG       cpu_to_be16(0xFF00)
 #define LINK_SPEED_25G		1
 #define LINK_SPEED_12_5G	2
 #define LINK_WIDTH_DEFAULT	4
 #define DECIMAL_FACTORING	1000
 /*
  * The default link width is multiplied by 1000
  * to get accurate value after division.
  */
 #define FACTOR_LINK_WIDTH	(LINK_WIDTH_DEFAULT * DECIMAL_FACTORING)

 struct ib_pma_portcounters_cong {
 	u8 reserved;
 	u8 reserved1;
 	__be16 port_check_rate;
 	__be16 symbol_error_counter;
 	u8 link_error_recovery_counter;
 	u8 link_downed_counter;
 	__be16 port_rcv_errors;
 	__be16 port_rcv_remphys_errors;
 	__be16 port_rcv_switch_relay_errors;
 	__be16 port_xmit_discards;
 	u8 port_xmit_constraint_errors;
 	u8 port_rcv_constraint_errors;
 	u8 reserved2;
 	u8 link_overrun_errors; /* LocalLink: 7:4, BufferOverrun: 3:0 */
 	__be16 reserved3;
 	__be16 vl15_dropped;
 	__be64 port_xmit_data;
 	__be64 port_rcv_data;
 	__be64 port_xmit_packets;
 	__be64 port_rcv_packets;
 	__be64 port_xmit_wait;
 	__be64 port_adr_events;
 } __packed;

 #define IB_SMP_UNSUP_VERSION    cpu_to_be16(0x0004)
 #define IB_SMP_UNSUP_METHOD     cpu_to_be16(0x0008)
 #define IB_SMP_UNSUP_METH_ATTR  cpu_to_be16(0x000C)
 #define IB_SMP_INVALID_FIELD    cpu_to_be16(0x001C)

 #define OPA_MAX_PREEMPT_CAP         32
 #define OPA_VLARB_LOW_ELEMENTS       0
 #define OPA_VLARB_HIGH_ELEMENTS      1
 #define OPA_VLARB_PREEMPT_ELEMENTS   2
 #define OPA_VLARB_PREEMPT_MATRIX     3

 #define HFI1_XMIT_RATE_UNSUPPORTED               0x0
 #define HFI1_XMIT_RATE_PICO                      0x7
 /* number of 4nsec cycles equaling 2secs */
 #define HFI1_CONG_TIMER_PSINTERVAL               0x1DCD64EC

 #define IB_CC_SVCTYPE_RC 0x0
 #define IB_CC_SVCTYPE_UC 0x1
 #define IB_CC_SVCTYPE_RD 0x2
 #define IB_CC_SVCTYPE_UD 0x3

 /*
  * There should be an equivalent IB #define for the following, but
  * I cannot find it.
  */
 #define OPA_CC_LOG_TYPE_HFI	2

 struct opa_hfi1_cong_log_event_internal {
 	u32 lqpn;
 	u32 rqpn;
 	u8 sl;
 	u8 svc_type;
 	u32 rlid;
 	u64 timestamp; /* wider than 32 bits to detect 32 bit rollover */
 };

 struct opa_hfi1_cong_log_event {
 	u8 local_qp_cn_entry[3];
 	u8 remote_qp_number_cn_entry[3];
 	u8 sl_svc_type_cn_entry; /* 5 bits SL, 3 bits svc type */
 	u8 reserved;
 	__be32 remote_lid_cn_entry;
 	__be32 timestamp_cn_entry;
 } __packed;

 #define OPA_CONG_LOG_ELEMS	96

 struct opa_hfi1_cong_log {
 	u8 log_type;
 	u8 congestion_flags;
 	__be16 threshold_event_counter;
 	__be32 current_time_stamp;
 	u8 threshold_cong_event_map[OPA_MAX_SLS / 8];
 	struct opa_hfi1_cong_log_event events[OPA_CONG_LOG_ELEMS];
 } __packed;

 #define IB_CC_TABLE_CAP_DEFAULT 31

 /* Port control flags */
 #define IB_CC_CCS_PC_SL_BASED 0x01

 struct opa_congestion_setting_entry {
 	u8 ccti_increase;
 	u8 reserved;
 	__be16 ccti_timer;
 	u8 trigger_threshold;
 	u8 ccti_min; /* min CCTI for cc table */
 } __packed;

 struct opa_congestion_setting_entry_shadow {
 	u8 ccti_increase;
 	u8 reserved;
 	u16 ccti_timer;
 	u8 trigger_threshold;
 	u8 ccti_min; /* min CCTI for cc table */
 } __packed;

 struct opa_congestion_setting_attr {
 	__be32 control_map;
 	__be16 port_control;
 	struct opa_congestion_setting_entry entries[OPA_MAX_SLS];
 } __packed;

 struct opa_congestion_setting_attr_shadow {
 	u32 control_map;
 	u16 port_control;
 	struct opa_congestion_setting_entry_shadow entries[OPA_MAX_SLS];
 } __packed;

 #define IB_CC_TABLE_ENTRY_INCREASE_DEFAULT 1
 #define IB_CC_TABLE_ENTRY_TIMER_DEFAULT 1

 /* 64 Congestion Control table entries in a single MAD */
 #define IB_CCT_ENTRIES 64
 #define IB_CCT_MIN_ENTRIES (IB_CCT_ENTRIES * 2)

 struct ib_cc_table_entry {
 	__be16 entry; /* shift:2, multiplier:14 */
 };

 struct ib_cc_table_entry_shadow {
 	u16 entry; /* shift:2, multiplier:14 */
 };

 struct ib_cc_table_attr {
 	__be16 ccti_limit; /* max CCTI for cc table */
 	struct ib_cc_table_entry ccti_entries[IB_CCT_ENTRIES];
 } __packed;

 struct ib_cc_table_attr_shadow {
 	u16 ccti_limit; /* max CCTI for cc table */
 	struct ib_cc_table_entry_shadow ccti_entries[IB_CCT_ENTRIES];
 } __packed;

 #define CC_TABLE_SHADOW_MAX \
 	(IB_CC_TABLE_CAP_DEFAULT * IB_CCT_ENTRIES)

 struct cc_table_shadow {
 	u16 ccti_limit; /* max CCTI for cc table */
 	struct ib_cc_table_entry_shadow entries[CC_TABLE_SHADOW_MAX];
 } __packed;

 /*
  * struct cc_state combines the (active) per-port congestion control
  * table, and the (active) per-SL congestion settings. cc_state data
  * may need to be read in code paths that we want to be fast, so it
  * is an RCU protected structure.
  */
 struct cc_state {
 	struct rcu_head rcu;
 	struct cc_table_shadow cct;
 	struct opa_congestion_setting_attr_shadow cong_setting;
 };

 /*
  * OPA BufferControl MAD
  */

 /* attribute modifier macros */
 #define OPA_AM_NPORT_SHIFT	24
 #define OPA_AM_NPORT_MASK	0xff
 #define OPA_AM_NPORT_SMASK	(OPA_AM_NPORT_MASK << OPA_AM_NPORT_SHIFT)
 #define OPA_AM_NPORT(am)	(((am) >> OPA_AM_NPORT_SHIFT) & \
 					OPA_AM_NPORT_MASK)

 #define OPA_AM_NBLK_SHIFT	24
 #define OPA_AM_NBLK_MASK	0xff
 #define OPA_AM_NBLK_SMASK	(OPA_AM_NBLK_MASK << OPA_AM_NBLK_SHIFT)
 #define OPA_AM_NBLK(am)		(((am) >> OPA_AM_NBLK_SHIFT) & \
 					OPA_AM_NBLK_MASK)

 #define OPA_AM_START_BLK_SHIFT	0
 #define OPA_AM_START_BLK_MASK	0xff
 #define OPA_AM_START_BLK_SMASK	(OPA_AM_START_BLK_MASK << \
 					OPA_AM_START_BLK_SHIFT)
 #define OPA_AM_START_BLK(am)	(((am) >> OPA_AM_START_BLK_SHIFT) & \
 					OPA_AM_START_BLK_MASK)

 #define OPA_AM_PORTNUM_SHIFT	0
 #define OPA_AM_PORTNUM_MASK	0xff
 #define OPA_AM_PORTNUM_SMASK	(OPA_AM_PORTNUM_MASK << OPA_AM_PORTNUM_SHIFT)
 #define OPA_AM_PORTNUM(am)	(((am) >> OPA_AM_PORTNUM_SHIFT) & \
 					OPA_AM_PORTNUM_MASK)

 #define OPA_AM_ASYNC_SHIFT	12
 #define OPA_AM_ASYNC_MASK	0x1
 #define OPA_AM_ASYNC_SMASK	(OPA_AM_ASYNC_MASK << OPA_AM_ASYNC_SHIFT)
 #define OPA_AM_ASYNC(am)	(((am) >> OPA_AM_ASYNC_SHIFT) & \
 					OPA_AM_ASYNC_MASK)

 #define OPA_AM_START_SM_CFG_SHIFT	9
 #define OPA_AM_START_SM_CFG_MASK	0x1
 #define OPA_AM_START_SM_CFG_SMASK	(OPA_AM_START_SM_CFG_MASK << \
 						OPA_AM_START_SM_CFG_SHIFT)
 #define OPA_AM_START_SM_CFG(am)		(((am) >> OPA_AM_START_SM_CFG_SHIFT) \
 						& OPA_AM_START_SM_CFG_MASK)

 #define OPA_AM_CI_ADDR_SHIFT	19
 #define OPA_AM_CI_ADDR_MASK	0xfff
 #define OPA_AM_CI_ADDR_SMASK	(OPA_AM_CI_ADDR_MASK << OPA_CI_ADDR_SHIFT)
 #define OPA_AM_CI_ADDR(am)	(((am) >> OPA_AM_CI_ADDR_SHIFT) & \
 					OPA_AM_CI_ADDR_MASK)

 #define OPA_AM_CI_LEN_SHIFT	13
 #define OPA_AM_CI_LEN_MASK	0x3f
 #define OPA_AM_CI_LEN_SMASK	(OPA_AM_CI_LEN_MASK << OPA_CI_LEN_SHIFT)
 #define OPA_AM_CI_LEN(am)	(((am) >> OPA_AM_CI_LEN_SHIFT) & \
 					OPA_AM_CI_LEN_MASK)

 /* error info macros */
 #define OPA_EI_STATUS_SMASK	0x80
 #define OPA_EI_CODE_SMASK	0x0f

 struct vl_limit {
 	__be16 dedicated;
 	__be16 shared;
 };

 struct buffer_control {
 	__be16 reserved;
 	__be16 overall_shared_limit;
 	struct vl_limit vl[OPA_MAX_VLS];
 };

 struct sc2vlnt {
 	u8 vlnt[32]; /* 5 bit VL, 3 bits reserved */
 };

 /*
  * The PortSamplesControl.CounterMasks field is an array of 3 bit fields
  * which specify the N'th counter's capabilities. See ch. 16.1.3.2.
  * We support 5 counters which only count the mandatory quantities.
  */
 #define COUNTER_MASK(q, n) (q << ((9 - n) * 3))
 #define COUNTER_MASK0_9 \
 	cpu_to_be32(COUNTER_MASK(1, 0) | \
 		    COUNTER_MASK(1, 1) | \
 		    COUNTER_MASK(1, 2) | \
 		    COUNTER_MASK(1, 3) | \
 		    COUNTER_MASK(1, 4))

 void hfi1_event_pkey_change(struct hfi1_devdata *dd, u32 port);
 void hfi1_handle_trap_timer(struct timer_list *t);
 u16 tx_link_width(u16 link_width);
 u64 get_xmit_wait_counters(struct hfi1_pportdata *ppd, u16 link_width,
 			   u16 link_speed, int vl);
 /**
  * get_link_speed - determine whether 12.5G or 25G speed
  * @link_speed: the speed of active link
  * @return: Return 2 if link speed identified as 12.5G
  * or return 1 if link speed is 25G.
  *
  * The function indirectly calculate required link speed
  * value for convert_xmit_counter function. If the link
  * speed is 25G, the function return as 1 as it is required
  * by xmit counter conversion formula :-( 25G / link_speed).
  * This conversion will provide value 1 if current
  * link speed is 25G or 2 if 12.5G.This is done to avoid
  * 12.5 float number conversion.
  */
 static inline u16 get_link_speed(u16 link_speed)
 {
 	return (link_speed == 1) ?
 		 LINK_SPEED_12_5G : LINK_SPEED_25G;
 }

 /**
  * convert_xmit_counter - calculate flit times for given xmit counter
  * value
  * @xmit_wait_val: current xmit counter value
  * @link_width: width of active link
  * @link_speed: speed of active link
  * @return: return xmit counter value in flit times.
  */
 static inline u64 convert_xmit_counter(u64 xmit_wait_val, u16 link_width,
 				       u16 link_speed)
 {
 	return (xmit_wait_val * 2 * (FACTOR_LINK_WIDTH / link_width)
 		 * link_speed) / DECIMAL_FACTORING;
 }
 #endif				/* _HFI1_MAD_H */
	/* SPDX-License-Identifier: GPL-2.0 OR BSD-3-Clause */
	/*
	* Copyright(c) 2015 - 2017 Intel Corporation.
	*/

	#ifndef _HFI1_MAD_H
	#define _HFI1_MAD_H

	#include <rdma/ib_pma.h>
	#include <rdma/opa_smi.h>
	#include <rdma/opa_port_info.h>
	#include "opa_compat.h"

	/*
	* OPA Traps
	*/
	#define OPA_TRAP_GID_NOW_IN_SERVICE cpu_to_be16(64)
	#define OPA_TRAP_GID_OUT_OF_SERVICE cpu_to_be16(65)
	#define OPA_TRAP_ADD_MULTICAST_GROUP cpu_to_be16(66)
	#define OPA_TRAL_DEL_MULTICAST_GROUP cpu_to_be16(67)
	#define OPA_TRAP_UNPATH cpu_to_be16(68)
	#define OPA_TRAP_REPATH cpu_to_be16(69)
	#define OPA_TRAP_PORT_CHANGE_STATE cpu_to_be16(128)
	#define OPA_TRAP_LINK_INTEGRITY cpu_to_be16(129)
	#define OPA_TRAP_EXCESSIVE_BUFFER_OVERRUN cpu_to_be16(130)
	#define OPA_TRAP_FLOW_WATCHDOG cpu_to_be16(131)
	#define OPA_TRAP_CHANGE_CAPABILITY cpu_to_be16(144)
	#define OPA_TRAP_CHANGE_SYSGUID cpu_to_be16(145)
	#define OPA_TRAP_BAD_M_KEY cpu_to_be16(256)
	#define OPA_TRAP_BAD_P_KEY cpu_to_be16(257)
	#define OPA_TRAP_BAD_Q_KEY cpu_to_be16(258)
	#define OPA_TRAP_SWITCH_BAD_PKEY cpu_to_be16(259)
	#define OPA_SMA_TRAP_DATA_LINK_WIDTH cpu_to_be16(2048)

	/*
	* Generic trap/notice other local changes flags (trap 144).
	*/
	#define OPA_NOTICE_TRAP_LWDE_CHG 0x08 /* Link Width Downgrade Enable
	* changed
	*/
	#define OPA_NOTICE_TRAP_LSE_CHG 0x04 /* Link Speed Enable changed */
	#define OPA_NOTICE_TRAP_LWE_CHG 0x02 /* Link Width Enable changed */
	#define OPA_NOTICE_TRAP_NODE_DESC_CHG 0x01

	struct opa_mad_notice_attr {
	u8 generic_type;
	u8 prod_type_msb;
	__be16 prod_type_lsb;
	__be16 trap_num;
	__be16 toggle_count;
	__be32 issuer_lid;
	__be32 reserved1;
	union ib_gid issuer_gid;

	union {
	struct {
	u8 details[64];
	} raw_data;

	struct {
	union ib_gid gid;
	} __packed ntc_64_65_66_67;

	struct {
	__be32 lid;
	} __packed ntc_128;

	struct {
	__be32 lid; /* where violation happened */
	u8 port_num; /* where violation happened */
	} __packed ntc_129_130_131;

	struct {
	__be32 lid; /* LID where change occurred */
	__be32 new_cap_mask; /* new capability mask */
	__be16 reserved2;
	__be16 cap_mask3;
	__be16 change_flags; /* low 4 bits only */
	} __packed ntc_144;

	struct {
	__be64 new_sys_guid;
	__be32 lid; /* lid where sys guid changed */
	} __packed ntc_145;

	struct {
	__be32 lid;
	__be32 dr_slid;
	u8 method;
	u8 dr_trunc_hop;
	__be16 attr_id;
	__be32 attr_mod;
	__be64 mkey;
	u8 dr_rtn_path[30];
	} __packed ntc_256;

	struct {
	__be32 lid1;
	__be32 lid2;
	__be32 key;
	u8 sl; /* SL: high 5 bits */
	u8 reserved3[3];
	union ib_gid gid1;
	union ib_gid gid2;
	__be32 qp1; /* high 8 bits reserved */
	__be32 qp2; /* high 8 bits reserved */
	} __packed ntc_257_258;

	struct {
	__be16 flags; /* low 8 bits reserved */
	__be16 pkey;
	__be32 lid1;
	__be32 lid2;
	u8 sl; /* SL: high 5 bits */
	u8 reserved4[3];
	union ib_gid gid1;
	union ib_gid gid2;
	__be32 qp1; /* high 8 bits reserved */
	__be32 qp2; /* high 8 bits reserved */
	} __packed ntc_259;

	struct {
	__be32 lid;
	} __packed ntc_2048;

	};
	u8 class_data[];
	};

	#define IB_VLARB_LOWPRI_0_31 1
	#define IB_VLARB_LOWPRI_32_63 2
	#define IB_VLARB_HIGHPRI_0_31 3
	#define IB_VLARB_HIGHPRI_32_63 4

	#define OPA_MAX_PREEMPT_CAP 32
	#define OPA_VLARB_LOW_ELEMENTS 0
	#define OPA_VLARB_HIGH_ELEMENTS 1
	#define OPA_VLARB_PREEMPT_ELEMENTS 2
	#define OPA_VLARB_PREEMPT_MATRIX 3

	#define IB_PMA_PORT_COUNTERS_CONG cpu_to_be16(0xFF00)
	#define LINK_SPEED_25G 1
	#define LINK_SPEED_12_5G 2
	#define LINK_WIDTH_DEFAULT 4
	#define DECIMAL_FACTORING 1000
	/*
	* The default link width is multiplied by 1000
	* to get accurate value after division.
	*/
	#define FACTOR_LINK_WIDTH (LINK_WIDTH_DEFAULT * DECIMAL_FACTORING)

	struct ib_pma_portcounters_cong {
	u8 reserved;
	u8 reserved1;
	__be16 port_check_rate;
	__be16 symbol_error_counter;
	u8 link_error_recovery_counter;
	u8 link_downed_counter;
	__be16 port_rcv_errors;
	__be16 port_rcv_remphys_errors;
	__be16 port_rcv_switch_relay_errors;
	__be16 port_xmit_discards;
	u8 port_xmit_constraint_errors;
	u8 port_rcv_constraint_errors;
	u8 reserved2;
	u8 link_overrun_errors; /* LocalLink: 7:4, BufferOverrun: 3:0 */
	__be16 reserved3;
	__be16 vl15_dropped;
	__be64 port_xmit_data;
	__be64 port_rcv_data;
	__be64 port_xmit_packets;
	__be64 port_rcv_packets;
	__be64 port_xmit_wait;
	__be64 port_adr_events;
	} __packed;

	#define IB_SMP_UNSUP_VERSION cpu_to_be16(0x0004)
	#define IB_SMP_UNSUP_METHOD cpu_to_be16(0x0008)
	#define IB_SMP_UNSUP_METH_ATTR cpu_to_be16(0x000C)
	#define IB_SMP_INVALID_FIELD cpu_to_be16(0x001C)

	#define OPA_MAX_PREEMPT_CAP 32
	#define OPA_VLARB_LOW_ELEMENTS 0
	#define OPA_VLARB_HIGH_ELEMENTS 1
	#define OPA_VLARB_PREEMPT_ELEMENTS 2
	#define OPA_VLARB_PREEMPT_MATRIX 3

	#define HFI1_XMIT_RATE_UNSUPPORTED 0x0
	#define HFI1_XMIT_RATE_PICO 0x7
	/* number of 4nsec cycles equaling 2secs */
	#define HFI1_CONG_TIMER_PSINTERVAL 0x1DCD64EC

	#define IB_CC_SVCTYPE_RC 0x0
	#define IB_CC_SVCTYPE_UC 0x1
	#define IB_CC_SVCTYPE_RD 0x2
	#define IB_CC_SVCTYPE_UD 0x3

	/*
	* There should be an equivalent IB #define for the following, but
	* I cannot find it.
	*/
	#define OPA_CC_LOG_TYPE_HFI 2

	struct opa_hfi1_cong_log_event_internal {
	u32 lqpn;
	u32 rqpn;
	u8 sl;
	u8 svc_type;
	u32 rlid;
	u64 timestamp; /* wider than 32 bits to detect 32 bit rollover */
	};

	struct opa_hfi1_cong_log_event {
	u8 local_qp_cn_entry[3];
	u8 remote_qp_number_cn_entry[3];
	u8 sl_svc_type_cn_entry; /* 5 bits SL, 3 bits svc type */
	u8 reserved;
	__be32 remote_lid_cn_entry;
	__be32 timestamp_cn_entry;
	} __packed;

	#define OPA_CONG_LOG_ELEMS 96

	struct opa_hfi1_cong_log {
	u8 log_type;
	u8 congestion_flags;
	__be16 threshold_event_counter;
	__be32 current_time_stamp;
	u8 threshold_cong_event_map[OPA_MAX_SLS / 8];
	struct opa_hfi1_cong_log_event events[OPA_CONG_LOG_ELEMS];
	} __packed;

	#define IB_CC_TABLE_CAP_DEFAULT 31

	/* Port control flags */
	#define IB_CC_CCS_PC_SL_BASED 0x01

	struct opa_congestion_setting_entry {
	u8 ccti_increase;
	u8 reserved;
	__be16 ccti_timer;
	u8 trigger_threshold;
	u8 ccti_min; /* min CCTI for cc table */
	} __packed;

	struct opa_congestion_setting_entry_shadow {
	u8 ccti_increase;
	u8 reserved;
	u16 ccti_timer;
	u8 trigger_threshold;
	u8 ccti_min; /* min CCTI for cc table */
	} __packed;

	struct opa_congestion_setting_attr {
	__be32 control_map;
	__be16 port_control;
	struct opa_congestion_setting_entry entries[OPA_MAX_SLS];
	} __packed;

	struct opa_congestion_setting_attr_shadow {
	u32 control_map;
	u16 port_control;
	struct opa_congestion_setting_entry_shadow entries[OPA_MAX_SLS];
	} __packed;

	#define IB_CC_TABLE_ENTRY_INCREASE_DEFAULT 1
	#define IB_CC_TABLE_ENTRY_TIMER_DEFAULT 1

	/* 64 Congestion Control table entries in a single MAD */
	#define IB_CCT_ENTRIES 64
	#define IB_CCT_MIN_ENTRIES (IB_CCT_ENTRIES * 2)

	struct ib_cc_table_entry {
	__be16 entry; /* shift:2, multiplier:14 */
	};

	struct ib_cc_table_entry_shadow {
	u16 entry; /* shift:2, multiplier:14 */
	};

	struct ib_cc_table_attr {
	__be16 ccti_limit; /* max CCTI for cc table */
	struct ib_cc_table_entry ccti_entries[IB_CCT_ENTRIES];
	} __packed;

	struct ib_cc_table_attr_shadow {
	u16 ccti_limit; /* max CCTI for cc table */
	struct ib_cc_table_entry_shadow ccti_entries[IB_CCT_ENTRIES];
	} __packed;

	#define CC_TABLE_SHADOW_MAX \
	(IB_CC_TABLE_CAP_DEFAULT * IB_CCT_ENTRIES)

	struct cc_table_shadow {
	u16 ccti_limit; /* max CCTI for cc table */
	struct ib_cc_table_entry_shadow entries[CC_TABLE_SHADOW_MAX];
	} __packed;

	/*
	* struct cc_state combines the (active) per-port congestion control
	* table, and the (active) per-SL congestion settings. cc_state data
	* may need to be read in code paths that we want to be fast, so it
	* is an RCU protected structure.
	*/
	struct cc_state {
	struct rcu_head rcu;
	struct cc_table_shadow cct;
	struct opa_congestion_setting_attr_shadow cong_setting;
	};

	/*
	* OPA BufferControl MAD
	*/

	/* attribute modifier macros */
	#define OPA_AM_NPORT_SHIFT 24
	#define OPA_AM_NPORT_MASK 0xff
	#define OPA_AM_NPORT_SMASK (OPA_AM_NPORT_MASK << OPA_AM_NPORT_SHIFT)
	#define OPA_AM_NPORT(am) (((am) >> OPA_AM_NPORT_SHIFT) & \
	OPA_AM_NPORT_MASK)

	#define OPA_AM_NBLK_SHIFT 24
	#define OPA_AM_NBLK_MASK 0xff
	#define OPA_AM_NBLK_SMASK (OPA_AM_NBLK_MASK << OPA_AM_NBLK_SHIFT)
	#define OPA_AM_NBLK(am) (((am) >> OPA_AM_NBLK_SHIFT) & \
	OPA_AM_NBLK_MASK)

	#define OPA_AM_START_BLK_SHIFT 0
	#define OPA_AM_START_BLK_MASK 0xff
	#define OPA_AM_START_BLK_SMASK (OPA_AM_START_BLK_MASK << \
	OPA_AM_START_BLK_SHIFT)
	#define OPA_AM_START_BLK(am) (((am) >> OPA_AM_START_BLK_SHIFT) & \
	OPA_AM_START_BLK_MASK)

	#define OPA_AM_PORTNUM_SHIFT 0
	#define OPA_AM_PORTNUM_MASK 0xff
	#define OPA_AM_PORTNUM_SMASK (OPA_AM_PORTNUM_MASK << OPA_AM_PORTNUM_SHIFT)
	#define OPA_AM_PORTNUM(am) (((am) >> OPA_AM_PORTNUM_SHIFT) & \
	OPA_AM_PORTNUM_MASK)

	#define OPA_AM_ASYNC_SHIFT 12
	#define OPA_AM_ASYNC_MASK 0x1
	#define OPA_AM_ASYNC_SMASK (OPA_AM_ASYNC_MASK << OPA_AM_ASYNC_SHIFT)
	#define OPA_AM_ASYNC(am) (((am) >> OPA_AM_ASYNC_SHIFT) & \
	OPA_AM_ASYNC_MASK)

	#define OPA_AM_START_SM_CFG_SHIFT 9
	#define OPA_AM_START_SM_CFG_MASK 0x1
	#define OPA_AM_START_SM_CFG_SMASK (OPA_AM_START_SM_CFG_MASK << \
	OPA_AM_START_SM_CFG_SHIFT)
	#define OPA_AM_START_SM_CFG(am) (((am) >> OPA_AM_START_SM_CFG_SHIFT) \
	& OPA_AM_START_SM_CFG_MASK)

	#define OPA_AM_CI_ADDR_SHIFT 19
	#define OPA_AM_CI_ADDR_MASK 0xfff
	#define OPA_AM_CI_ADDR_SMASK (OPA_AM_CI_ADDR_MASK << OPA_CI_ADDR_SHIFT)
	#define OPA_AM_CI_ADDR(am) (((am) >> OPA_AM_CI_ADDR_SHIFT) & \
	OPA_AM_CI_ADDR_MASK)

	#define OPA_AM_CI_LEN_SHIFT 13
	#define OPA_AM_CI_LEN_MASK 0x3f
	#define OPA_AM_CI_LEN_SMASK (OPA_AM_CI_LEN_MASK << OPA_CI_LEN_SHIFT)
	#define OPA_AM_CI_LEN(am) (((am) >> OPA_AM_CI_LEN_SHIFT) & \
	OPA_AM_CI_LEN_MASK)

	/* error info macros */
	#define OPA_EI_STATUS_SMASK 0x80
	#define OPA_EI_CODE_SMASK 0x0f

	struct vl_limit {
	__be16 dedicated;
	__be16 shared;
	};

	struct buffer_control {
	__be16 reserved;
	__be16 overall_shared_limit;
	struct vl_limit vl[OPA_MAX_VLS];
	};

	struct sc2vlnt {
	u8 vlnt[32]; /* 5 bit VL, 3 bits reserved */
	};

	/*
	* The PortSamplesControl.CounterMasks field is an array of 3 bit fields
	* which specify the N'th counter's capabilities. See ch. 16.1.3.2.
	* We support 5 counters which only count the mandatory quantities.
	*/
	#define COUNTER_MASK(q, n) (q << ((9 - n) * 3))
	#define COUNTER_MASK0_9 \
	cpu_to_be32(COUNTER_MASK(1, 0) \| \
	COUNTER_MASK(1, 1) \| \
	COUNTER_MASK(1, 2) \| \
	COUNTER_MASK(1, 3) \| \
	COUNTER_MASK(1, 4))

	void hfi1_event_pkey_change(struct hfi1_devdata *dd, u32 port);
	void hfi1_handle_trap_timer(struct timer_list *t);
	u16 tx_link_width(u16 link_width);
	u64 get_xmit_wait_counters(struct hfi1_pportdata *ppd, u16 link_width,
	u16 link_speed, int vl);
	/**
	* get_link_speed - determine whether 12.5G or 25G speed
	* @link_speed: the speed of active link
	* @return: Return 2 if link speed identified as 12.5G
	* or return 1 if link speed is 25G.
	*
	* The function indirectly calculate required link speed
	* value for convert_xmit_counter function. If the link
	* speed is 25G, the function return as 1 as it is required
	* by xmit counter conversion formula :-( 25G / link_speed).
	* This conversion will provide value 1 if current
	* link speed is 25G or 2 if 12.5G.This is done to avoid
	* 12.5 float number conversion.
	*/
	static inline u16 get_link_speed(u16 link_speed)
	{
	return (link_speed == 1) ?
	LINK_SPEED_12_5G : LINK_SPEED_25G;
	}

	/**
	* convert_xmit_counter - calculate flit times for given xmit counter
	* value
	* @xmit_wait_val: current xmit counter value
	* @link_width: width of active link
	* @link_speed: speed of active link
	* @return: return xmit counter value in flit times.
	*/
	static inline u64 convert_xmit_counter(u64 xmit_wait_val, u16 link_width,
	u16 link_speed)
	{
	return (xmit_wait_val * 2 * (FACTOR_LINK_WIDTH / link_width)
	* link_speed) / DECIMAL_FACTORING;
	}
	#endif /* _HFI1_MAD_H */