mirror of
https://github.com/AuxXxilium/linux_dsm_epyc7002.git
synced 2024-12-22 11:47:53 +07:00
55774d09b7
A couple bits are used by OPA for link physical state that are not present as part of InfiniBand. Add a short blurb what those states mean and removed an unused state. Cc: Leon Romanovsky <leon@kernel.org> Reviewed-by: Todd Rimmer <todd.rimmer@intel.com> Reviewed-by: Brent Rothermel <brent.r.rothermel@intel.com> Signed-off-by: Dennis Dalessandro <dennis.dalessandro@intel.com> Reviewed-by: Leon Romanovsky <leonro@mellanox.com> Signed-off-by: Doug Ledford <dledford@redhat.com>
129 lines
4.7 KiB
C
129 lines
4.7 KiB
C
#ifndef _LINUX_H
|
|
#define _LINUX_H
|
|
/*
|
|
* Copyright(c) 2015, 2016 Intel Corporation.
|
|
*
|
|
* This file is provided under a dual BSD/GPLv2 license. When using or
|
|
* redistributing this file, you may do so under either license.
|
|
*
|
|
* GPL LICENSE SUMMARY
|
|
*
|
|
* This program is free software; you can redistribute it and/or modify
|
|
* it under the terms of version 2 of the GNU General Public License as
|
|
* published by the Free Software Foundation.
|
|
*
|
|
* This program is distributed in the hope that it will be useful, but
|
|
* WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
|
* General Public License for more details.
|
|
*
|
|
* BSD LICENSE
|
|
*
|
|
* Redistribution and use in source and binary forms, with or without
|
|
* modification, are permitted provided that the following conditions
|
|
* are met:
|
|
*
|
|
* - Redistributions of source code must retain the above copyright
|
|
* notice, this list of conditions and the following disclaimer.
|
|
* - Redistributions in binary form must reproduce the above copyright
|
|
* notice, this list of conditions and the following disclaimer in
|
|
* the documentation and/or other materials provided with the
|
|
* distribution.
|
|
* - Neither the name of Intel Corporation nor the names of its
|
|
* contributors may be used to endorse or promote products derived
|
|
* from this software without specific prior written permission.
|
|
*
|
|
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
|
|
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
|
|
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
|
|
* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
|
|
* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
|
|
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
|
|
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
|
|
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
|
|
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
|
|
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
|
|
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
|
|
*
|
|
*/
|
|
|
|
/*
|
|
* 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 */
|