drivers/infiniband/hw/hfi1/opa_compat.h

   1 /* SPDX-License-Identifier: GPL-2.0 OR BSD-3-Clause */
   2 /*
   3  * Copyright(c) 2015, 2016 Intel Corporation.
   4  */
   5
   6 #ifndef _LINUX_H
   7 #define _LINUX_H
   8 /*
   9  * This header file is for OPA-specific definitions which are
  10  * required by the HFI driver, and which aren't yet in the Linux
  11  * IB core. We'll collect these all here, then merge them into
  12  * the kernel when that's convenient.
  13  */
  14
  15 /* OPA SMA attribute IDs */
  16 #define OPA_ATTRIB_ID_CONGESTION_INFO           cpu_to_be16(0x008b)
  17 #define OPA_ATTRIB_ID_HFI_CONGESTION_LOG        cpu_to_be16(0x008f)
  18 #define OPA_ATTRIB_ID_HFI_CONGESTION_SETTING    cpu_to_be16(0x0090)
  19 #define OPA_ATTRIB_ID_CONGESTION_CONTROL_TABLE  cpu_to_be16(0x0091)
  20
  21 /* OPA PMA attribute IDs */
  22 #define OPA_PM_ATTRIB_ID_PORT_STATUS            cpu_to_be16(0x0040)
  23 #define OPA_PM_ATTRIB_ID_CLEAR_PORT_STATUS      cpu_to_be16(0x0041)
  24 #define OPA_PM_ATTRIB_ID_DATA_PORT_COUNTERS     cpu_to_be16(0x0042)
  25 #define OPA_PM_ATTRIB_ID_ERROR_PORT_COUNTERS    cpu_to_be16(0x0043)
  26 #define OPA_PM_ATTRIB_ID_ERROR_INFO             cpu_to_be16(0x0044)
  27
  28 /* OPA status codes */
  29 #define OPA_PM_STATUS_REQUEST_TOO_LARGE         cpu_to_be16(0x100)
  30
  31 static inline u8 port_states_to_logical_state(struct opa_port_states *ps)
  32 {
  33         return ps->portphysstate_portstate & OPA_PI_MASK_PORT_STATE;
  34 }
  35
  36 static inline u8 port_states_to_phys_state(struct opa_port_states *ps)
  37 {
  38         return ((ps->portphysstate_portstate &
  39                   OPA_PI_MASK_PORT_PHYSICAL_STATE) >> 4) & 0xf;
  40 }
  41
  42 /*
  43  * OPA port physical states
  44  * IB Volume 1, Table 146 PortInfo/IB Volume 2 Section 5.4.2(1) PortPhysState
  45  * values are the same in OmniPath Architecture. OPA leverages some of the same
  46  * concepts as InfiniBand, but has a few other states as well.
  47  *
  48  * When writing, only values 0-3 are valid, other values are ignored.
  49  * When reading, 0 is reserved.
  50  *
  51  * Returned by the ibphys_portstate() routine.
  52  */
  53 enum opa_port_phys_state {
  54         /* Values 0-7 have the same meaning in OPA as in InfiniBand. */
  55
  56         IB_PORTPHYSSTATE_NOP = 0,
  57         /* 1 is reserved */
  58         IB_PORTPHYSSTATE_POLLING = 2,
  59         IB_PORTPHYSSTATE_DISABLED = 3,
  60         IB_PORTPHYSSTATE_TRAINING = 4,
  61         IB_PORTPHYSSTATE_LINKUP = 5,
  62         IB_PORTPHYSSTATE_LINK_ERROR_RECOVERY = 6,
  63         IB_PORTPHYSSTATE_PHY_TEST = 7,
  64         /* 8 is reserved */
  65
  66         /*
  67          * Offline: Port is quiet (transmitters disabled) due to lack of
  68          * physical media, unsupported media, or transition between link up
  69          * and next link up attempt
  70          */
  71         OPA_PORTPHYSSTATE_OFFLINE = 9,
  72
  73         /* 10 is reserved */
  74
  75         /*
  76          * Phy_Test: Specific test patterns are transmitted, and receiver BER
  77          * can be monitored. This facilitates signal integrity testing for the
  78          * physical layer of the port.
  79          */
  80         OPA_PORTPHYSSTATE_TEST = 11,
  81
  82         OPA_PORTPHYSSTATE_MAX = 11,
  83         /* values 12-15 are reserved/ignored */
  84 };
  85
  86 #endif /* _LINUX_H */