| 1 | /* SPDX-License-Identifier: GPL-2.0 OR BSD-3-Clause */ |
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| 2 | /* |
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| 3 | * Copyright(c) 2015, 2016 Intel Corporation. |
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| 4 | */ |
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| 5 | |
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| 6 | #ifndef _LINUX_H |
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| 7 | #define _LINUX_H |
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| 8 | /* |
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| 9 | * This header file is for OPA-specific definitions which are |
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| 10 | * required by the HFI driver, and which aren't yet in the Linux |
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| 11 | * IB core. We'll collect these all here, then merge them into |
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| 12 | * the kernel when that's convenient. |
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| 13 | */ |
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| 14 | |
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| 15 | /* OPA SMA attribute IDs */ |
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| 16 | #define OPA_ATTRIB_ID_CONGESTION_INFO cpu_to_be16(0x008b) |
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| 17 | #define OPA_ATTRIB_ID_HFI_CONGESTION_LOG cpu_to_be16(0x008f) |
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| 18 | #define OPA_ATTRIB_ID_HFI_CONGESTION_SETTING cpu_to_be16(0x0090) |
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| 19 | #define OPA_ATTRIB_ID_CONGESTION_CONTROL_TABLE cpu_to_be16(0x0091) |
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| 20 | |
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| 21 | /* OPA PMA attribute IDs */ |
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| 22 | #define OPA_PM_ATTRIB_ID_PORT_STATUS cpu_to_be16(0x0040) |
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| 23 | #define OPA_PM_ATTRIB_ID_CLEAR_PORT_STATUS cpu_to_be16(0x0041) |
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| 24 | #define OPA_PM_ATTRIB_ID_DATA_PORT_COUNTERS cpu_to_be16(0x0042) |
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| 25 | #define OPA_PM_ATTRIB_ID_ERROR_PORT_COUNTERS cpu_to_be16(0x0043) |
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| 26 | #define OPA_PM_ATTRIB_ID_ERROR_INFO cpu_to_be16(0x0044) |
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| 27 | |
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| 28 | /* OPA status codes */ |
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| 29 | #define OPA_PM_STATUS_REQUEST_TOO_LARGE cpu_to_be16(0x100) |
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| 30 | |
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| 31 | static inline u8 port_states_to_logical_state(struct opa_port_states *ps) |
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| 32 | { |
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| 33 | return ps->portphysstate_portstate & OPA_PI_MASK_PORT_STATE; |
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| 34 | } |
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| 35 | |
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| 36 | static inline u8 port_states_to_phys_state(struct opa_port_states *ps) |
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| 37 | { |
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| 38 | return ((ps->portphysstate_portstate & |
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| 39 | OPA_PI_MASK_PORT_PHYSICAL_STATE) >> 4) & 0xf; |
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| 40 | } |
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| 41 | |
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| 42 | /* |
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| 43 | * OPA port physical states |
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| 44 | * IB Volume 1, Table 146 PortInfo/IB Volume 2 Section 5.4.2(1) PortPhysState |
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| 45 | * values are the same in OmniPath Architecture. OPA leverages some of the same |
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| 46 | * concepts as InfiniBand, but has a few other states as well. |
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| 47 | * |
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| 48 | * When writing, only values 0-3 are valid, other values are ignored. |
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| 49 | * When reading, 0 is reserved. |
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| 50 | * |
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| 51 | * Returned by the ibphys_portstate() routine. |
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| 52 | */ |
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| 53 | enum opa_port_phys_state { |
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| 54 | /* Values 0-7 have the same meaning in OPA as in InfiniBand. */ |
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| 55 | |
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| 56 | IB_PORTPHYSSTATE_NOP = 0, |
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| 57 | /* 1 is reserved */ |
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| 58 | IB_PORTPHYSSTATE_POLLING = 2, |
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| 59 | IB_PORTPHYSSTATE_DISABLED = 3, |
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| 60 | IB_PORTPHYSSTATE_TRAINING = 4, |
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| 61 | IB_PORTPHYSSTATE_LINKUP = 5, |
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| 62 | IB_PORTPHYSSTATE_LINK_ERROR_RECOVERY = 6, |
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| 63 | IB_PORTPHYSSTATE_PHY_TEST = 7, |
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| 64 | /* 8 is reserved */ |
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| 65 | |
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| 66 | /* |
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| 67 | * Offline: Port is quiet (transmitters disabled) due to lack of |
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| 68 | * physical media, unsupported media, or transition between link up |
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| 69 | * and next link up attempt |
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| 70 | */ |
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| 71 | OPA_PORTPHYSSTATE_OFFLINE = 9, |
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| 72 | |
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| 73 | /* 10 is reserved */ |
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| 74 | |
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| 75 | /* |
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| 76 | * Phy_Test: Specific test patterns are transmitted, and receiver BER |
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| 77 | * can be monitored. This facilitates signal integrity testing for the |
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| 78 | * physical layer of the port. |
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| 79 | */ |
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| 80 | OPA_PORTPHYSSTATE_TEST = 11, |
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| 81 | |
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| 82 | OPA_PORTPHYSSTATE_MAX = 11, |
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| 83 | /* values 12-15 are reserved/ignored */ |
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| 84 | }; |
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| 85 | |
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| 86 | #endif /* _LINUX_H */ |
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| 87 | |
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