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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
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#define _LINUX_H
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/*
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* Copyright(c) 2015, 2016 Intel Corporation.
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*
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* This file is provided under a dual BSD/GPLv2 license. When using or
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* redistributing this file, you may do so under either license.
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*
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* GPL LICENSE SUMMARY
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of version 2 of the GNU General Public License as
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* published by the Free Software Foundation.
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*
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* This program is distributed in the hope that it will be useful, but
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* WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* General Public License for more details.
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*
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* BSD LICENSE
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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*
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* - Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* - Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in
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* the documentation and/or other materials provided with the
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* distribution.
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* - Neither the name of Intel Corporation nor the names of its
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* contributors may be used to endorse or promote products derived
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* from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*
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*/
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/*
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* This header file is for OPA-specific definitions which are
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* required by the HFI driver, and which aren't yet in the Linux
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* IB core. We'll collect these all here, then merge them into
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* the kernel when that's convenient.
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*/
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/* OPA SMA attribute IDs */
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#define OPA_ATTRIB_ID_CONGESTION_INFO cpu_to_be16(0x008b)
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#define OPA_ATTRIB_ID_HFI_CONGESTION_LOG cpu_to_be16(0x008f)
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#define OPA_ATTRIB_ID_HFI_CONGESTION_SETTING cpu_to_be16(0x0090)
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#define OPA_ATTRIB_ID_CONGESTION_CONTROL_TABLE cpu_to_be16(0x0091)
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/* OPA PMA attribute IDs */
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#define OPA_PM_ATTRIB_ID_PORT_STATUS cpu_to_be16(0x0040)
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#define OPA_PM_ATTRIB_ID_CLEAR_PORT_STATUS cpu_to_be16(0x0041)
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#define OPA_PM_ATTRIB_ID_DATA_PORT_COUNTERS cpu_to_be16(0x0042)
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#define OPA_PM_ATTRIB_ID_ERROR_PORT_COUNTERS cpu_to_be16(0x0043)
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#define OPA_PM_ATTRIB_ID_ERROR_INFO cpu_to_be16(0x0044)
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/* OPA status codes */
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#define OPA_PM_STATUS_REQUEST_TOO_LARGE cpu_to_be16(0x100)
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static inline u8 port_states_to_logical_state(struct opa_port_states *ps)
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{
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return ps->portphysstate_portstate & OPA_PI_MASK_PORT_STATE;
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}
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static inline u8 port_states_to_phys_state(struct opa_port_states *ps)
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{
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return ((ps->portphysstate_portstate &
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OPA_PI_MASK_PORT_PHYSICAL_STATE) >> 4) & 0xf;
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}
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/*
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* OPA port physical states
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* IB Volume 1, Table 146 PortInfo/IB Volume 2 Section 5.4.2(1) PortPhysState
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* values are the same in OmniPath Architecture. OPA leverages some of the same
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* concepts as InfiniBand, but has a few other states as well.
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*
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* When writing, only values 0-3 are valid, other values are ignored.
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* When reading, 0 is reserved.
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*
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* Returned by the ibphys_portstate() routine.
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*/
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enum opa_port_phys_state {
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/* Values 0-7 have the same meaning in OPA as in InfiniBand. */
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IB_PORTPHYSSTATE_NOP = 0,
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/* 1 is reserved */
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IB_PORTPHYSSTATE_POLLING = 2,
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IB_PORTPHYSSTATE_DISABLED = 3,
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IB_PORTPHYSSTATE_TRAINING = 4,
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IB_PORTPHYSSTATE_LINKUP = 5,
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IB_PORTPHYSSTATE_LINK_ERROR_RECOVERY = 6,
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IB_PORTPHYSSTATE_PHY_TEST = 7,
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/* 8 is reserved */
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/*
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* Offline: Port is quiet (transmitters disabled) due to lack of
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* physical media, unsupported media, or transition between link up
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* and next link up attempt
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*/
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OPA_PORTPHYSSTATE_OFFLINE = 9,
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/* 10 is reserved */
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/*
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* Phy_Test: Specific test patterns are transmitted, and receiver BER
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* can be monitored. This facilitates signal integrity testing for the
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* physical layer of the port.
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*/
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OPA_PORTPHYSSTATE_TEST = 11,
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OPA_PORTPHYSSTATE_MAX = 11,
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/* values 12-15 are reserved/ignored */
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};
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#endif /* _LINUX_H */
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