1*145eba1aSCai Huoqing /* SPDX-License-Identifier: GPL-2.0 or BSD-3-Clause */
2f48ad614SDennis Dalessandro /*
3f48ad614SDennis Dalessandro * Copyright(c) 2015, 2016 Intel Corporation.
4f48ad614SDennis Dalessandro */
5f48ad614SDennis Dalessandro
6*145eba1aSCai Huoqing #ifndef _LINUX_H
7*145eba1aSCai Huoqing #define _LINUX_H
8f48ad614SDennis Dalessandro /*
9f48ad614SDennis Dalessandro * This header file is for OPA-specific definitions which are
10f48ad614SDennis Dalessandro * required by the HFI driver, and which aren't yet in the Linux
11f48ad614SDennis Dalessandro * IB core. We'll collect these all here, then merge them into
12f48ad614SDennis Dalessandro * the kernel when that's convenient.
13f48ad614SDennis Dalessandro */
14f48ad614SDennis Dalessandro
15f48ad614SDennis Dalessandro /* OPA SMA attribute IDs */
16f48ad614SDennis Dalessandro #define OPA_ATTRIB_ID_CONGESTION_INFO cpu_to_be16(0x008b)
17f48ad614SDennis Dalessandro #define OPA_ATTRIB_ID_HFI_CONGESTION_LOG cpu_to_be16(0x008f)
18f48ad614SDennis Dalessandro #define OPA_ATTRIB_ID_HFI_CONGESTION_SETTING cpu_to_be16(0x0090)
19f48ad614SDennis Dalessandro #define OPA_ATTRIB_ID_CONGESTION_CONTROL_TABLE cpu_to_be16(0x0091)
20f48ad614SDennis Dalessandro
21f48ad614SDennis Dalessandro /* OPA PMA attribute IDs */
22f48ad614SDennis Dalessandro #define OPA_PM_ATTRIB_ID_PORT_STATUS cpu_to_be16(0x0040)
23f48ad614SDennis Dalessandro #define OPA_PM_ATTRIB_ID_CLEAR_PORT_STATUS cpu_to_be16(0x0041)
24f48ad614SDennis Dalessandro #define OPA_PM_ATTRIB_ID_DATA_PORT_COUNTERS cpu_to_be16(0x0042)
25f48ad614SDennis Dalessandro #define OPA_PM_ATTRIB_ID_ERROR_PORT_COUNTERS cpu_to_be16(0x0043)
26f48ad614SDennis Dalessandro #define OPA_PM_ATTRIB_ID_ERROR_INFO cpu_to_be16(0x0044)
27f48ad614SDennis Dalessandro
28f48ad614SDennis Dalessandro /* OPA status codes */
29f48ad614SDennis Dalessandro #define OPA_PM_STATUS_REQUEST_TOO_LARGE cpu_to_be16(0x100)
30f48ad614SDennis Dalessandro
port_states_to_logical_state(struct opa_port_states * ps)31f48ad614SDennis Dalessandro static inline u8 port_states_to_logical_state(struct opa_port_states *ps)
32f48ad614SDennis Dalessandro {
33f48ad614SDennis Dalessandro return ps->portphysstate_portstate & OPA_PI_MASK_PORT_STATE;
34f48ad614SDennis Dalessandro }
35f48ad614SDennis Dalessandro
port_states_to_phys_state(struct opa_port_states * ps)36f48ad614SDennis Dalessandro static inline u8 port_states_to_phys_state(struct opa_port_states *ps)
37f48ad614SDennis Dalessandro {
38f48ad614SDennis Dalessandro return ((ps->portphysstate_portstate &
39f48ad614SDennis Dalessandro OPA_PI_MASK_PORT_PHYSICAL_STATE) >> 4) & 0xf;
40f48ad614SDennis Dalessandro }
41f48ad614SDennis Dalessandro
42f48ad614SDennis Dalessandro /*
43f48ad614SDennis Dalessandro * OPA port physical states
44f48ad614SDennis Dalessandro * IB Volume 1, Table 146 PortInfo/IB Volume 2 Section 5.4.2(1) PortPhysState
4555774d09SDennis Dalessandro * values are the same in OmniPath Architecture. OPA leverages some of the same
4655774d09SDennis Dalessandro * concepts as InfiniBand, but has a few other states as well.
47f48ad614SDennis Dalessandro *
48f48ad614SDennis Dalessandro * When writing, only values 0-3 are valid, other values are ignored.
49f48ad614SDennis Dalessandro * When reading, 0 is reserved.
50f48ad614SDennis Dalessandro *
51f48ad614SDennis Dalessandro * Returned by the ibphys_portstate() routine.
52f48ad614SDennis Dalessandro */
53f48ad614SDennis Dalessandro enum opa_port_phys_state {
5455774d09SDennis Dalessandro /* Values 0-7 have the same meaning in OPA as in InfiniBand. */
5555774d09SDennis Dalessandro
56f48ad614SDennis Dalessandro IB_PORTPHYSSTATE_NOP = 0,
57f48ad614SDennis Dalessandro /* 1 is reserved */
58f48ad614SDennis Dalessandro IB_PORTPHYSSTATE_POLLING = 2,
59f48ad614SDennis Dalessandro IB_PORTPHYSSTATE_DISABLED = 3,
60f48ad614SDennis Dalessandro IB_PORTPHYSSTATE_TRAINING = 4,
61f48ad614SDennis Dalessandro IB_PORTPHYSSTATE_LINKUP = 5,
62f48ad614SDennis Dalessandro IB_PORTPHYSSTATE_LINK_ERROR_RECOVERY = 6,
63f48ad614SDennis Dalessandro IB_PORTPHYSSTATE_PHY_TEST = 7,
64f48ad614SDennis Dalessandro /* 8 is reserved */
6555774d09SDennis Dalessandro
6655774d09SDennis Dalessandro /*
6755774d09SDennis Dalessandro * Offline: Port is quiet (transmitters disabled) due to lack of
6855774d09SDennis Dalessandro * physical media, unsupported media, or transition between link up
6955774d09SDennis Dalessandro * and next link up attempt
7055774d09SDennis Dalessandro */
71f48ad614SDennis Dalessandro OPA_PORTPHYSSTATE_OFFLINE = 9,
7255774d09SDennis Dalessandro
7355774d09SDennis Dalessandro /* 10 is reserved */
7455774d09SDennis Dalessandro
7555774d09SDennis Dalessandro /*
7655774d09SDennis Dalessandro * Phy_Test: Specific test patterns are transmitted, and receiver BER
7755774d09SDennis Dalessandro * can be monitored. This facilitates signal integrity testing for the
7855774d09SDennis Dalessandro * physical layer of the port.
7955774d09SDennis Dalessandro */
80f48ad614SDennis Dalessandro OPA_PORTPHYSSTATE_TEST = 11,
8155774d09SDennis Dalessandro
82f48ad614SDennis Dalessandro OPA_PORTPHYSSTATE_MAX = 11,
83f48ad614SDennis Dalessandro /* values 12-15 are reserved/ignored */
84f48ad614SDennis Dalessandro };
85f48ad614SDennis Dalessandro
86f48ad614SDennis Dalessandro #endif /* _LINUX_H */
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