diff options
Diffstat (limited to 'drivers/infiniband/hw/hfi1/opa_compat.h')
| -rw-r--r-- | drivers/infiniband/hw/hfi1/opa_compat.h | 86 |
1 files changed, 86 insertions, 0 deletions
diff --git a/drivers/infiniband/hw/hfi1/opa_compat.h b/drivers/infiniband/hw/hfi1/opa_compat.h new file mode 100644 index 0000000000..31570b0cfd --- /dev/null +++ b/drivers/infiniband/hw/hfi1/opa_compat.h @@ -0,0 +1,86 @@ +/* SPDX-License-Identifier: GPL-2.0 or BSD-3-Clause */ +/* + * Copyright(c) 2015, 2016 Intel Corporation. + */ + +#ifndef _LINUX_H +#define _LINUX_H +/* + * This header file is for OPA-specific definitions which are + * required by the HFI driver, and which aren't yet in the Linux + * IB core. We'll collect these all here, then merge them into + * the kernel when that's convenient. + */ + +/* OPA SMA attribute IDs */ +#define OPA_ATTRIB_ID_CONGESTION_INFO cpu_to_be16(0x008b) +#define OPA_ATTRIB_ID_HFI_CONGESTION_LOG cpu_to_be16(0x008f) +#define OPA_ATTRIB_ID_HFI_CONGESTION_SETTING cpu_to_be16(0x0090) +#define OPA_ATTRIB_ID_CONGESTION_CONTROL_TABLE cpu_to_be16(0x0091) + +/* OPA PMA attribute IDs */ +#define OPA_PM_ATTRIB_ID_PORT_STATUS cpu_to_be16(0x0040) +#define OPA_PM_ATTRIB_ID_CLEAR_PORT_STATUS cpu_to_be16(0x0041) +#define OPA_PM_ATTRIB_ID_DATA_PORT_COUNTERS cpu_to_be16(0x0042) +#define OPA_PM_ATTRIB_ID_ERROR_PORT_COUNTERS cpu_to_be16(0x0043) +#define OPA_PM_ATTRIB_ID_ERROR_INFO cpu_to_be16(0x0044) + +/* OPA status codes */ +#define OPA_PM_STATUS_REQUEST_TOO_LARGE cpu_to_be16(0x100) + +static inline u8 port_states_to_logical_state(struct opa_port_states *ps) +{ + return ps->portphysstate_portstate & OPA_PI_MASK_PORT_STATE; +} + +static inline u8 port_states_to_phys_state(struct opa_port_states *ps) +{ + return ((ps->portphysstate_portstate & + OPA_PI_MASK_PORT_PHYSICAL_STATE) >> 4) & 0xf; +} + +/* + * OPA port physical states + * IB Volume 1, Table 146 PortInfo/IB Volume 2 Section 5.4.2(1) PortPhysState + * values are the same in OmniPath Architecture. OPA leverages some of the same + * concepts as InfiniBand, but has a few other states as well. + * + * When writing, only values 0-3 are valid, other values are ignored. + * When reading, 0 is reserved. + * + * Returned by the ibphys_portstate() routine. + */ +enum opa_port_phys_state { + /* Values 0-7 have the same meaning in OPA as in InfiniBand. */ + + IB_PORTPHYSSTATE_NOP = 0, + /* 1 is reserved */ + IB_PORTPHYSSTATE_POLLING = 2, + IB_PORTPHYSSTATE_DISABLED = 3, + IB_PORTPHYSSTATE_TRAINING = 4, + IB_PORTPHYSSTATE_LINKUP = 5, + IB_PORTPHYSSTATE_LINK_ERROR_RECOVERY = 6, + IB_PORTPHYSSTATE_PHY_TEST = 7, + /* 8 is reserved */ + + /* + * Offline: Port is quiet (transmitters disabled) due to lack of + * physical media, unsupported media, or transition between link up + * and next link up attempt + */ + OPA_PORTPHYSSTATE_OFFLINE = 9, + + /* 10 is reserved */ + + /* + * Phy_Test: Specific test patterns are transmitted, and receiver BER + * can be monitored. This facilitates signal integrity testing for the + * physical layer of the port. + */ + OPA_PORTPHYSSTATE_TEST = 11, + + OPA_PORTPHYSSTATE_MAX = 11, + /* values 12-15 are reserved/ignored */ +}; + +#endif /* _LINUX_H */ |