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-rw-r--r--drivers/infiniband/hw/hfi1/mad.h437
1 files changed, 437 insertions, 0 deletions
diff --git a/drivers/infiniband/hw/hfi1/mad.h b/drivers/infiniband/hw/hfi1/mad.h
new file mode 100644
index 0000000000..1d45a008fa
--- /dev/null
+++ b/drivers/infiniband/hw/hfi1/mad.h
@@ -0,0 +1,437 @@
+/* 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 */
generated by cgit v1.2.3 (git 2.39.1) at 2024-12-14 18:46:34 +0000