/*
* Copyright(c) 2015 - 2017 Intel Corporation.
*
* This file is provided under a dual BSD/GPLv2 license. When using or
* redistributing this file, you may do so under either license.
*
* GPL LICENSE SUMMARY
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of version 2 of the GNU General Public License as
* published by the Free Software Foundation.
*
* This program is distributed in the hope that it will be useful, but
* WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* General Public License for more details.
*
* BSD LICENSE
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* - Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* - Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
* the documentation and/or other materials provided with the
* distribution.
* - Neither the name of Intel Corporation nor the names of its
* contributors may be used to endorse or promote products derived
* from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
*/
#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[0];
};
#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, u8 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 */
