cachepc-linux

Fork of AMDESE/linux with modifications for CachePC side-channel attack
git clone https://git.sinitax.com/sinitax/cachepc-linux
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opa_compat.h (2701B)

      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
     31static 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
     36static 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 */
     53enum 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 */