/*- * SPDX-License-Identifier: BSD-2-Clause OR GPL-2.0 * * 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 * * Copyright(c) 2008 - 2011 Intel Corporation. All rights reserved. * * 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. * * You should have received a copy of the GNU General Public License * along with this program; if not, write to the Free Software * Foundation, Inc., 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA. * The full GNU General Public License is included in this distribution * in the file called LICENSE.GPL. * * BSD LICENSE * * Copyright(c) 2008 - 2011 Intel Corporation. All rights reserved. * All rights reserved. * * 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. * * 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. * * $FreeBSD: stable/11/sys/dev/isci/scil/sci_controller_constants.h 330897 2018-03-14 03:19:51Z eadler $ */ #ifndef _SCI_CONTROLLER_CONSTANTS_H_ #define _SCI_CONTROLLER_CONSTANTS_H_ #include /** * @file * * @brief This file contains constant values that change based on the type * of core or framework being managed. These constants are exported * in order to provide the user with information as to the bounds * (i.e. how many) of specific objects. */ #ifdef __cplusplus extern "C" { #endif // __cplusplus #ifdef SCIC_SDS_4_ENABLED #ifndef SCI_MAX_PHYS /** * This constant defines the maximum number of phy objects that can be * supported for the SCU Driver Standard (SDS) library. This is tied * directly to silicon capabilities. */ #define SCI_MAX_PHYS (4) #endif #ifndef SCI_MAX_PORTS /** * This constant defines the maximum number of port objects that can be * supported for the SCU Driver Standard (SDS) library. This is tied * directly to silicon capabilities. */ #define SCI_MAX_PORTS SCI_MAX_PHYS #endif #ifndef SCI_MIN_SMP_PHYS /** * This constant defines the minimum number of SMP phy objects that * can be supported for a single expander level. * This was determined by using 36 physical phys and room for 2 virtual * phys. */ #define SCI_MIN_SMP_PHYS (38) #endif #ifndef SCI_MAX_SMP_PHYS /** * This constant defines the maximum number of SMP phy objects that * can be supported for the SCU Driver Standard (SDS) library. * This number can be increased if required. */ #define SCI_MAX_SMP_PHYS (384) #endif #ifndef SCI_MAX_REMOTE_DEVICES /** * This constant defines the maximum number of remote device objects that * can be supported for the SCU Driver Standard (SDS) library. This is tied * directly to silicon capabilities. */ #define SCI_MAX_REMOTE_DEVICES (256) #endif #ifndef SCI_MIN_REMOTE_DEVICES /** * This constant defines the minimum number of remote device objects that * can be supported for the SCU Driver Standard (SDS) library. This # can * be configured for minimum memory environments to any value less than * SCI_MAX_REMOTE_DEVICES */ #define SCI_MIN_REMOTE_DEVICES (16) #endif #ifndef SCI_MAX_IO_REQUESTS /** * This constant defines the maximum number of IO request objects that * can be supported for the SCU Driver Standard (SDS) library. This is tied * directly to silicon capabilities. */ #define SCI_MAX_IO_REQUESTS (256) #endif #ifndef SCI_MIN_IO_REQUESTS /** * This constant defines the minimum number of IO request objects that * can be supported for the SCU Driver Standard (SDS) library. This # * can be configured for minimum memory environments to any value less * than SCI_MAX_IO_REQUESTS. */ #define SCI_MIN_IO_REQUESTS (1) #endif #ifndef SCI_MAX_SCATTER_GATHER_ELEMENTS /** * This constant defines the maximum number of Scatter-Gather Elements * to be used by any SCI component. * * Note: number of elements must be an even number, since descriptors * posted to hardware always contain pairs of elements (with second * element set to zeroes if not needed). */ #define __MAXPHYS_ELEMENTS ((MAXPHYS / PAGE_SIZE) + 1) #define SCI_MAX_SCATTER_GATHER_ELEMENTS ((__MAXPHYS_ELEMENTS + 1) & ~0x1) #endif #ifndef SCI_MIN_SCATTER_GATHER_ELEMENTS /** * This constant defines the minimum number of Scatter-Gather Elements * to be used by any SCI component. */ #define SCI_MIN_SCATTER_GATHER_ELEMENTS 1 #endif #else // SCIC_SDS_4_ENABLED #error "SCI Core configuration left unspecified (e.g. SCIC_SDS_4_ENABLED)" #endif // SCIC_SDS_4_ENABLED /** * This constant defines the maximum number of PCI devices that can be supported * by the driver. */ #define SCI_MAX_PCI_DEVICES (2) /** * This constant defines the maximum number of controllers that can * occur in a single silicon package. */ #define SCI_MAX_CONTROLLERS_PER_PCI_DEVICE (2) /** * This constant defines the maximum number of controllers that can * be supported by a library object. The user specified maximum controller * count must be less than or equal to this number. This is a driver * specific constant that is not tied to silicon capabilities. */ #if !defined(SCI_MAX_CONTROLLERS) #define SCI_MAX_CONTROLLERS (2) #endif #ifndef SCI_MAX_MSIX_MESSAGES_PER_CONTROLLER /** * This constant defines the maximum number of MSI-X interrupt vectors/messages * supported for an SCU hardware controller instance. */ #define SCI_MAX_MSIX_MESSAGES_PER_CONTROLLER (2) #endif /** * This constant defines the maximum number of MSI-X interrupt vectors/messages * supported for an SCU device. */ #define SCI_MAX_MSIX_MESSAGES \ (SCI_MAX_MSIX_MESSAGES_PER_CONTROLLER * SCI_MAX_CONTROLLERS) /** * The maximum number of supported domain objects is currently tied to the * maximum number of support port objects. */ #define SCI_MAX_DOMAINS SCI_MAX_PORTS #ifdef __cplusplus } #endif // __cplusplus #endif // _SCI_CONTROLLER_CONSTANTS_H_