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 */ 87