diff options
Diffstat (limited to 'drivers/infiniband/hw/hfi1/mad.h')
| -rw-r--r-- | drivers/infiniband/hw/hfi1/mad.h | 478 |
1 files changed, 478 insertions, 0 deletions
diff --git a/drivers/infiniband/hw/hfi1/mad.h b/drivers/infiniband/hw/hfi1/mad.h new file mode 100644 index 000000000..2f48e6953 --- /dev/null +++ b/drivers/infiniband/hw/hfi1/mad.h @@ -0,0 +1,478 @@ +/* + * 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 */ |