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kernel-ark/include/rdma/opa_port_info.h
Kaike Wan 6d72344cf6 IB/ipoib: Increase ipoib Datagram mode MTU's upper limit 
Currently the ipoib UD mtu is restricted to 4K bytes. Remove this
limitation so that the IPOIB module can potentially use an MTU (in UD
mode) that is bounded by the MTU of the underlying device. A field is
added to the ib_port_attr structure to indicate the maximum physical
MTU the underlying device supports.

Link: https://lore.kernel.org/r/20200511160618.173205.23053.stgit@awfm-01.aw.intel.com
Reviewed-by: Dennis Dalessandro <dennis.dalessandro@intel.com>
Reviewed-by: Mike Marciniszyn <mike.marciniszyn@intel.com>
Signed-off-by: Sadanand Warrier <sadanand.warrier@intel.com>
Signed-off-by: Kaike Wan <kaike.wan@intel.com>
Signed-off-by: Dennis Dalessandro <dennis.dalessandro@intel.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
2020-05-21 11:23:55 -03:00

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/*
* Copyright (c) 2014-2020 Intel 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 in the main directory of this source tree, or the
* OpenIB.org BSD license below:
*
* 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.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
* BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
* ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
* SOFTWARE.
*/
#if !defined(OPA_PORT_INFO_H)
#define OPA_PORT_INFO_H
#include <rdma/opa_smi.h>
#define OPA_PORT_LINK_MODE_NOP 0 /* No change */
#define OPA_PORT_LINK_MODE_OPA 4 /* Port mode is OPA */
#define OPA_PORT_PACKET_FORMAT_NOP 0 /* No change */
#define OPA_PORT_PACKET_FORMAT_8B 1 /* Format 8B */
#define OPA_PORT_PACKET_FORMAT_9B 2 /* Format 9B */
#define OPA_PORT_PACKET_FORMAT_10B 4 /* Format 10B */
#define OPA_PORT_PACKET_FORMAT_16B 8 /* Format 16B */
#define OPA_PORT_LTP_CRC_MODE_NONE 0 /* No change */
#define OPA_PORT_LTP_CRC_MODE_14 1 /* 14-bit LTP CRC mode (optional) */
#define OPA_PORT_LTP_CRC_MODE_16 2 /* 16-bit LTP CRC mode */
#define OPA_PORT_LTP_CRC_MODE_48 4 /* 48-bit LTP CRC mode (optional) */
#define OPA_PORT_LTP_CRC_MODE_PER_LANE 8 /* 12/16-bit per lane LTP CRC mode */
/* Link Down / Neighbor Link Down Reason; indicated as follows: */
#define OPA_LINKDOWN_REASON_NONE 0 /* No specified reason */
#define OPA_LINKDOWN_REASON_RCV_ERROR_0 1
#define OPA_LINKDOWN_REASON_BAD_PKT_LEN 2
#define OPA_LINKDOWN_REASON_PKT_TOO_LONG 3
#define OPA_LINKDOWN_REASON_PKT_TOO_SHORT 4
#define OPA_LINKDOWN_REASON_BAD_SLID 5
#define OPA_LINKDOWN_REASON_BAD_DLID 6
#define OPA_LINKDOWN_REASON_BAD_L2 7
#define OPA_LINKDOWN_REASON_BAD_SC 8
#define OPA_LINKDOWN_REASON_RCV_ERROR_8 9
#define OPA_LINKDOWN_REASON_BAD_MID_TAIL 10
#define OPA_LINKDOWN_REASON_RCV_ERROR_10 11
#define OPA_LINKDOWN_REASON_PREEMPT_ERROR 12
#define OPA_LINKDOWN_REASON_PREEMPT_VL15 13
#define OPA_LINKDOWN_REASON_BAD_VL_MARKER 14
#define OPA_LINKDOWN_REASON_RCV_ERROR_14 15
#define OPA_LINKDOWN_REASON_RCV_ERROR_15 16
#define OPA_LINKDOWN_REASON_BAD_HEAD_DIST 17
#define OPA_LINKDOWN_REASON_BAD_TAIL_DIST 18
#define OPA_LINKDOWN_REASON_BAD_CTRL_DIST 19
#define OPA_LINKDOWN_REASON_BAD_CREDIT_ACK 20
#define OPA_LINKDOWN_REASON_UNSUPPORTED_VL_MARKER 21
#define OPA_LINKDOWN_REASON_BAD_PREEMPT 22
#define OPA_LINKDOWN_REASON_BAD_CONTROL_FLIT 23
#define OPA_LINKDOWN_REASON_EXCEED_MULTICAST_LIMIT 24
#define OPA_LINKDOWN_REASON_RCV_ERROR_24 25
#define OPA_LINKDOWN_REASON_RCV_ERROR_25 26
#define OPA_LINKDOWN_REASON_RCV_ERROR_26 27
#define OPA_LINKDOWN_REASON_RCV_ERROR_27 28
#define OPA_LINKDOWN_REASON_RCV_ERROR_28 29
#define OPA_LINKDOWN_REASON_RCV_ERROR_29 30
#define OPA_LINKDOWN_REASON_RCV_ERROR_30 31
#define OPA_LINKDOWN_REASON_EXCESSIVE_BUFFER_OVERRUN 32
#define OPA_LINKDOWN_REASON_UNKNOWN 33
/* 34 -reserved */
#define OPA_LINKDOWN_REASON_REBOOT 35
#define OPA_LINKDOWN_REASON_NEIGHBOR_UNKNOWN 36
/* 37-38 reserved */
#define OPA_LINKDOWN_REASON_FM_BOUNCE 39
#define OPA_LINKDOWN_REASON_SPEED_POLICY 40
#define OPA_LINKDOWN_REASON_WIDTH_POLICY 41
/* 42-48 reserved */
#define OPA_LINKDOWN_REASON_DISCONNECTED 49
#define OPA_LINKDOWN_REASON_LOCAL_MEDIA_NOT_INSTALLED 50
#define OPA_LINKDOWN_REASON_NOT_INSTALLED 51
#define OPA_LINKDOWN_REASON_CHASSIS_CONFIG 52
/* 53 reserved */
#define OPA_LINKDOWN_REASON_END_TO_END_NOT_INSTALLED 54
/* 55 reserved */
#define OPA_LINKDOWN_REASON_POWER_POLICY 56
#define OPA_LINKDOWN_REASON_LINKSPEED_POLICY 57
#define OPA_LINKDOWN_REASON_LINKWIDTH_POLICY 58
/* 59 reserved */
#define OPA_LINKDOWN_REASON_SWITCH_MGMT 60
#define OPA_LINKDOWN_REASON_SMA_DISABLED 61
/* 62 reserved */
#define OPA_LINKDOWN_REASON_TRANSIENT 63
/* 64-255 reserved */
/* OPA Link Init reason; indicated as follows: */
/* 3-7; 11-15 reserved; 8-15 cleared on Polling->LinkUp */
#define OPA_LINKINIT_REASON_NOP 0
#define OPA_LINKINIT_REASON_LINKUP (1 << 4)
#define OPA_LINKINIT_REASON_FLAPPING (2 << 4)
#define OPA_LINKINIT_REASON_CLEAR (8 << 4)
#define OPA_LINKINIT_OUTSIDE_POLICY (8 << 4)
#define OPA_LINKINIT_QUARANTINED (9 << 4)
#define OPA_LINKINIT_INSUFIC_CAPABILITY (10 << 4)
#define OPA_LINK_SPEED_NOP 0x0000 /* Reserved (1-5 Gbps) */
#define OPA_LINK_SPEED_12_5G 0x0001 /* 12.5 Gbps */
#define OPA_LINK_SPEED_25G 0x0002 /* 25.78125? Gbps (EDR) */
#define OPA_LINK_WIDTH_1X 0x0001
#define OPA_LINK_WIDTH_2X 0x0002
#define OPA_LINK_WIDTH_3X 0x0004
#define OPA_LINK_WIDTH_4X 0x0008
#define OPA_CAP_MASK3_IsEthOnFabricSupported (1 << 13)
#define OPA_CAP_MASK3_IsSnoopSupported (1 << 7)
#define OPA_CAP_MASK3_IsAsyncSC2VLSupported (1 << 6)
#define OPA_CAP_MASK3_IsAddrRangeConfigSupported (1 << 5)
#define OPA_CAP_MASK3_IsPassThroughSupported (1 << 4)
#define OPA_CAP_MASK3_IsSharedSpaceSupported (1 << 3)
/* reserved (1 << 2) */
#define OPA_CAP_MASK3_IsVLMarkerSupported (1 << 1)
#define OPA_CAP_MASK3_IsVLrSupported (1 << 0)
enum {
OPA_PORT_PHYS_CONF_DISCONNECTED = 0,
OPA_PORT_PHYS_CONF_STANDARD = 1,
OPA_PORT_PHYS_CONF_FIXED = 2,
OPA_PORT_PHYS_CONF_VARIABLE = 3,
OPA_PORT_PHYS_CONF_SI_PHOTO = 4
};
enum port_info_field_masks {
/* vl.cap */
OPA_PI_MASK_VL_CAP = 0x1F,
/* port_states.ledenable_offlinereason */
OPA_PI_MASK_OFFLINE_REASON = 0x0F,
OPA_PI_MASK_LED_ENABLE = 0x40,
/* port_states.unsleepstate_downdefstate */
OPA_PI_MASK_UNSLEEP_STATE = 0xF0,
OPA_PI_MASK_DOWNDEF_STATE = 0x0F,
/* port_states.portphysstate_portstate */
OPA_PI_MASK_PORT_PHYSICAL_STATE = 0xF0,
OPA_PI_MASK_PORT_STATE = 0x0F,
/* port_phys_conf */
OPA_PI_MASK_PORT_PHYSICAL_CONF = 0x0F,
/* collectivemask_multicastmask */
OPA_PI_MASK_COLLECT_MASK = 0x38,
OPA_PI_MASK_MULTICAST_MASK = 0x07,
/* mkeyprotect_lmc */
OPA_PI_MASK_MKEY_PROT_BIT = 0xC0,
OPA_PI_MASK_LMC = 0x0F,
/* smsl */
OPA_PI_MASK_SMSL = 0x1F,
/* partenforce_filterraw */
/* Filter Raw In/Out bits 1 and 2 were removed */
OPA_PI_MASK_LINKINIT_REASON = 0xF0,
OPA_PI_MASK_PARTITION_ENFORCE_IN = 0x08,
OPA_PI_MASK_PARTITION_ENFORCE_OUT = 0x04,
/* operational_vls */
OPA_PI_MASK_OPERATIONAL_VL = 0x1F,
/* sa_qp */
OPA_PI_MASK_SA_QP = 0x00FFFFFF,
/* sm_trap_qp */
OPA_PI_MASK_SM_TRAP_QP = 0x00FFFFFF,
/* localphy_overrun_errors */
OPA_PI_MASK_LOCAL_PHY_ERRORS = 0xF0,
OPA_PI_MASK_OVERRUN_ERRORS = 0x0F,
/* clientrereg_subnettimeout */
OPA_PI_MASK_CLIENT_REREGISTER = 0x80,
OPA_PI_MASK_SUBNET_TIMEOUT = 0x1F,
/* port_link_mode */
OPA_PI_MASK_PORT_LINK_SUPPORTED = (0x001F << 10),
OPA_PI_MASK_PORT_LINK_ENABLED = (0x001F << 5),
OPA_PI_MASK_PORT_LINK_ACTIVE = (0x001F << 0),
/* port_link_crc_mode */
OPA_PI_MASK_PORT_LINK_CRC_SUPPORTED = 0x0F00,
OPA_PI_MASK_PORT_LINK_CRC_ENABLED = 0x00F0,
OPA_PI_MASK_PORT_LINK_CRC_ACTIVE = 0x000F,
/* port_mode */
OPA_PI_MASK_PORT_MODE_SECURITY_CHECK = 0x0001,
OPA_PI_MASK_PORT_MODE_16B_TRAP_QUERY = 0x0002,
OPA_PI_MASK_PORT_MODE_PKEY_CONVERT = 0x0004,
OPA_PI_MASK_PORT_MODE_SC2SC_MAPPING = 0x0008,
OPA_PI_MASK_PORT_MODE_VL_MARKER = 0x0010,
OPA_PI_MASK_PORT_PASS_THROUGH = 0x0020,
OPA_PI_MASK_PORT_ACTIVE_OPTOMIZE = 0x0040,
/* flit_control.interleave */
OPA_PI_MASK_INTERLEAVE_DIST_SUP = (0x0003 << 12),
OPA_PI_MASK_INTERLEAVE_DIST_ENABLE = (0x0003 << 10),
OPA_PI_MASK_INTERLEAVE_MAX_NEST_TX = (0x001F << 5),
OPA_PI_MASK_INTERLEAVE_MAX_NEST_RX = (0x001F << 0),
/* port_error_action */
OPA_PI_MASK_EX_BUFFER_OVERRUN = 0x80000000,
/* 7 bits reserved */
OPA_PI_MASK_FM_CFG_ERR_EXCEED_MULTICAST_LIMIT = 0x00800000,
OPA_PI_MASK_FM_CFG_BAD_CONTROL_FLIT = 0x00400000,
OPA_PI_MASK_FM_CFG_BAD_PREEMPT = 0x00200000,
OPA_PI_MASK_FM_CFG_UNSUPPORTED_VL_MARKER = 0x00100000,
OPA_PI_MASK_FM_CFG_BAD_CRDT_ACK = 0x00080000,
OPA_PI_MASK_FM_CFG_BAD_CTRL_DIST = 0x00040000,
OPA_PI_MASK_FM_CFG_BAD_TAIL_DIST = 0x00020000,
OPA_PI_MASK_FM_CFG_BAD_HEAD_DIST = 0x00010000,
/* 2 bits reserved */
OPA_PI_MASK_PORT_RCV_BAD_VL_MARKER = 0x00002000,
OPA_PI_MASK_PORT_RCV_PREEMPT_VL15 = 0x00001000,
OPA_PI_MASK_PORT_RCV_PREEMPT_ERROR = 0x00000800,
/* 1 bit reserved */
OPA_PI_MASK_PORT_RCV_BAD_MidTail = 0x00000200,
/* 1 bit reserved */
OPA_PI_MASK_PORT_RCV_BAD_SC = 0x00000080,
OPA_PI_MASK_PORT_RCV_BAD_L2 = 0x00000040,
OPA_PI_MASK_PORT_RCV_BAD_DLID = 0x00000020,
OPA_PI_MASK_PORT_RCV_BAD_SLID = 0x00000010,
OPA_PI_MASK_PORT_RCV_PKTLEN_TOOSHORT = 0x00000008,
OPA_PI_MASK_PORT_RCV_PKTLEN_TOOLONG = 0x00000004,
OPA_PI_MASK_PORT_RCV_BAD_PKTLEN = 0x00000002,
OPA_PI_MASK_PORT_RCV_BAD_LT = 0x00000001,
/* pass_through.res_drctl */
OPA_PI_MASK_PASS_THROUGH_DR_CONTROL = 0x01,
/* buffer_units */
OPA_PI_MASK_BUF_UNIT_VL15_INIT = (0x00000FFF << 11),
OPA_PI_MASK_BUF_UNIT_VL15_CREDIT_RATE = (0x0000001F << 6),
OPA_PI_MASK_BUF_UNIT_CREDIT_ACK = (0x00000003 << 3),
OPA_PI_MASK_BUF_UNIT_BUF_ALLOC = (0x00000003 << 0),
/* neigh_mtu.pvlx_to_mtu */
OPA_PI_MASK_NEIGH_MTU_PVL0 = 0xF0,
OPA_PI_MASK_NEIGH_MTU_PVL1 = 0x0F,
/* neigh_mtu.vlstall_hoq_life */
OPA_PI_MASK_VL_STALL = (0x03 << 5),
OPA_PI_MASK_HOQ_LIFE = (0x1F << 0),
/* port_neigh_mode */
OPA_PI_MASK_NEIGH_MGMT_ALLOWED = (0x01 << 3),
OPA_PI_MASK_NEIGH_FW_AUTH_BYPASS = (0x01 << 2),
OPA_PI_MASK_NEIGH_NODE_TYPE = (0x03 << 0),
/* resptime_value */
OPA_PI_MASK_RESPONSE_TIME_VALUE = 0x1F,
/* mtucap */
OPA_PI_MASK_MTU_CAP = 0x0F,
};
struct opa_port_states {
u8 reserved;
u8 ledenable_offlinereason; /* 1 res, 1 bit, 6 bits */
u8 reserved2;
u8 portphysstate_portstate; /* 4 bits, 4 bits */
};
struct opa_port_state_info {
struct opa_port_states port_states;
__be16 link_width_downgrade_tx_active;
__be16 link_width_downgrade_rx_active;
};
struct opa_port_info {
__be32 lid;
__be32 flow_control_mask;
struct {
u8 res; /* was inittype */
u8 cap; /* 3 res, 5 bits */
__be16 high_limit;
__be16 preempt_limit;
u8 arb_high_cap;
u8 arb_low_cap;
} vl;
struct opa_port_states port_states;
u8 port_phys_conf; /* 4 res, 4 bits */
u8 collectivemask_multicastmask; /* 2 res, 3, 3 */
u8 mkeyprotect_lmc; /* 2 bits, 2 res, 4 bits */
u8 smsl; /* 3 res, 5 bits */
u8 partenforce_filterraw; /* bit fields */
u8 operational_vls; /* 3 res, 5 bits */
__be16 pkey_8b;
__be16 pkey_10b;
__be16 mkey_violations;
__be16 pkey_violations;
__be16 qkey_violations;
__be32 sm_trap_qp; /* 8 bits, 24 bits */
__be32 sa_qp; /* 8 bits, 24 bits */
u8 neigh_port_num;
u8 link_down_reason;
u8 neigh_link_down_reason;
u8 clientrereg_subnettimeout; /* 1 bit, 2 bits, 5 */
struct {
__be16 supported;
__be16 enabled;
__be16 active;
} link_speed;
struct {
__be16 supported;
__be16 enabled;
__be16 active;
} link_width;
struct {
__be16 supported;
__be16 enabled;
__be16 tx_active;
__be16 rx_active;
} link_width_downgrade;
__be16 port_link_mode; /* 1 res, 5 bits, 5 bits, 5 bits */
__be16 port_ltp_crc_mode; /* 4 res, 4 bits, 4 bits, 4 bits */
__be16 port_mode; /* 9 res, bit fields */
struct {
__be16 supported;
__be16 enabled;
} port_packet_format;
struct {
__be16 interleave; /* 2 res, 2,2,5,5 */
struct {
__be16 min_initial;
__be16 min_tail;
u8 large_pkt_limit;
u8 small_pkt_limit;
u8 max_small_pkt_limit;
u8 preemption_limit;
} preemption;
} flit_control;
__be32 reserved4;
__be32 port_error_action; /* bit field */
struct {
u8 egress_port;
u8 res_drctl; /* 7 res, 1 */
} pass_through;
__be16 mkey_lease_period;
__be32 buffer_units; /* 9 res, 12, 5, 3, 3 */
__be32 reserved5;
__be32 sm_lid;
__be64 mkey;
__be64 subnet_prefix;
struct {
u8 pvlx_to_mtu[OPA_MAX_VLS/2]; /* 4 bits, 4 bits */
} neigh_mtu;
struct {
u8 vlstall_hoqlife; /* 3 bits, 5 bits */
} xmit_q[OPA_MAX_VLS];
struct {
u8 addr[16];
} ipaddr_ipv6;
struct {
u8 addr[4];
} ipaddr_ipv4;
u32 reserved6;
u32 reserved7;
u32 reserved8;
__be64 neigh_node_guid;
__be32 ib_cap_mask;
__be16 reserved9; /* was ib_cap_mask2 */
__be16 opa_cap_mask;
__be32 reserved10; /* was link_roundtrip_latency */
__be16 overall_buffer_space;
__be16 reserved11; /* was max_credit_hint */
__be16 diag_code;
struct {
u8 buffer;
u8 wire;
} replay_depth;
u8 port_neigh_mode;
u8 mtucap; /* 4 res, 4 bits */
u8 resptimevalue; /* 3 res, 5 bits */
u8 local_port_num;
u8 reserved12;
u8 reserved13; /* was guid_cap */
} __packed;
#endif /* OPA_PORT_INFO_H */
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