16f231dda68080759f1aed3769896e94c73099f0fDan Williams/* 26f231dda68080759f1aed3769896e94c73099f0fDan Williams * This file is provided under a dual BSD/GPLv2 license. When using or 36f231dda68080759f1aed3769896e94c73099f0fDan Williams * redistributing this file, you may do so under either license. 46f231dda68080759f1aed3769896e94c73099f0fDan Williams * 56f231dda68080759f1aed3769896e94c73099f0fDan Williams * GPL LICENSE SUMMARY 66f231dda68080759f1aed3769896e94c73099f0fDan Williams * 76f231dda68080759f1aed3769896e94c73099f0fDan Williams * Copyright(c) 2008 - 2011 Intel Corporation. All rights reserved. 86f231dda68080759f1aed3769896e94c73099f0fDan Williams * 96f231dda68080759f1aed3769896e94c73099f0fDan Williams * This program is free software; you can redistribute it and/or modify 106f231dda68080759f1aed3769896e94c73099f0fDan Williams * it under the terms of version 2 of the GNU General Public License as 116f231dda68080759f1aed3769896e94c73099f0fDan Williams * published by the Free Software Foundation. 126f231dda68080759f1aed3769896e94c73099f0fDan Williams * 136f231dda68080759f1aed3769896e94c73099f0fDan Williams * This program is distributed in the hope that it will be useful, but 146f231dda68080759f1aed3769896e94c73099f0fDan Williams * WITHOUT ANY WARRANTY; without even the implied warranty of 156f231dda68080759f1aed3769896e94c73099f0fDan Williams * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 166f231dda68080759f1aed3769896e94c73099f0fDan Williams * General Public License for more details. 176f231dda68080759f1aed3769896e94c73099f0fDan Williams * 186f231dda68080759f1aed3769896e94c73099f0fDan Williams * You should have received a copy of the GNU General Public License 196f231dda68080759f1aed3769896e94c73099f0fDan Williams * along with this program; if not, write to the Free Software 206f231dda68080759f1aed3769896e94c73099f0fDan Williams * Foundation, Inc., 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA. 216f231dda68080759f1aed3769896e94c73099f0fDan Williams * The full GNU General Public License is included in this distribution 226f231dda68080759f1aed3769896e94c73099f0fDan Williams * in the file called LICENSE.GPL. 236f231dda68080759f1aed3769896e94c73099f0fDan Williams * 246f231dda68080759f1aed3769896e94c73099f0fDan Williams * BSD LICENSE 256f231dda68080759f1aed3769896e94c73099f0fDan Williams * 266f231dda68080759f1aed3769896e94c73099f0fDan Williams * Copyright(c) 2008 - 2011 Intel Corporation. All rights reserved. 276f231dda68080759f1aed3769896e94c73099f0fDan Williams * All rights reserved. 286f231dda68080759f1aed3769896e94c73099f0fDan Williams * 296f231dda68080759f1aed3769896e94c73099f0fDan Williams * Redistribution and use in source and binary forms, with or without 306f231dda68080759f1aed3769896e94c73099f0fDan Williams * modification, are permitted provided that the following conditions 316f231dda68080759f1aed3769896e94c73099f0fDan Williams * are met: 326f231dda68080759f1aed3769896e94c73099f0fDan Williams * 336f231dda68080759f1aed3769896e94c73099f0fDan Williams * * Redistributions of source code must retain the above copyright 346f231dda68080759f1aed3769896e94c73099f0fDan Williams * notice, this list of conditions and the following disclaimer. 356f231dda68080759f1aed3769896e94c73099f0fDan Williams * * Redistributions in binary form must reproduce the above copyright 366f231dda68080759f1aed3769896e94c73099f0fDan Williams * notice, this list of conditions and the following disclaimer in 376f231dda68080759f1aed3769896e94c73099f0fDan Williams * the documentation and/or other materials provided with the 386f231dda68080759f1aed3769896e94c73099f0fDan Williams * distribution. 396f231dda68080759f1aed3769896e94c73099f0fDan Williams * * Neither the name of Intel Corporation nor the names of its 406f231dda68080759f1aed3769896e94c73099f0fDan Williams * contributors may be used to endorse or promote products derived 416f231dda68080759f1aed3769896e94c73099f0fDan Williams * from this software without specific prior written permission. 426f231dda68080759f1aed3769896e94c73099f0fDan Williams * 436f231dda68080759f1aed3769896e94c73099f0fDan Williams * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 446f231dda68080759f1aed3769896e94c73099f0fDan Williams * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 456f231dda68080759f1aed3769896e94c73099f0fDan Williams * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 466f231dda68080759f1aed3769896e94c73099f0fDan Williams * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 476f231dda68080759f1aed3769896e94c73099f0fDan Williams * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 486f231dda68080759f1aed3769896e94c73099f0fDan Williams * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 496f231dda68080759f1aed3769896e94c73099f0fDan Williams * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 506f231dda68080759f1aed3769896e94c73099f0fDan Williams * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 516f231dda68080759f1aed3769896e94c73099f0fDan Williams * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 526f231dda68080759f1aed3769896e94c73099f0fDan Williams * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 536f231dda68080759f1aed3769896e94c73099f0fDan Williams * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 546f231dda68080759f1aed3769896e94c73099f0fDan Williams */ 55ce2b3261b6765c3b80fda95426c73e8d3bb1b035Dan Williams#ifndef _SCI_HOST_H_ 566f231dda68080759f1aed3769896e94c73099f0fDan Williams#define _SCI_HOST_H_ 576f231dda68080759f1aed3769896e94c73099f0fDan Williams 5811cc51835af0e6fbb2da9cb012bdaaa036497b7fDan Williams#include <scsi/sas_ata.h> 596f231dda68080759f1aed3769896e94c73099f0fDan Williams#include "remote_device.h" 60ce2b3261b6765c3b80fda95426c73e8d3bb1b035Dan Williams#include "phy.h" 6112ef65444de9d387a383b9991960848bed5bbe74Edmund Nadolski#include "isci.h" 62cc9203bf381a465cd115762b9cf7c9a313c874bcDan Williams#include "remote_node_table.h" 6363a3a15fb00ef49e50e98ff675094afcd92f113aDan Williams#include "registers.h" 6463a3a15fb00ef49e50e98ff675094afcd92f113aDan Williams#include "unsolicited_frame_control.h" 65e2f8db509fdd354bb7a68c86515e9d2d8909ccc9Dan Williams#include "probe_roms.h" 66cc9203bf381a465cd115762b9cf7c9a313c874bcDan Williams 675076a1a97e2fa61c847a5fdd4b1991faf7716da6Dan Williamsstruct isci_request; 68cc9203bf381a465cd115762b9cf7c9a313c874bcDan Williamsstruct scu_task_context; 69cc9203bf381a465cd115762b9cf7c9a313c874bcDan Williams 70e2f8db509fdd354bb7a68c86515e9d2d8909ccc9Dan Williams 71cc9203bf381a465cd115762b9cf7c9a313c874bcDan Williams/** 7289a7301f21fb00e753089671eb9e4132aab8ea08Dan Williams * struct sci_power_control - 73cc9203bf381a465cd115762b9cf7c9a313c874bcDan Williams * 74cc9203bf381a465cd115762b9cf7c9a313c874bcDan Williams * This structure defines the fields for managing power control for direct 75cc9203bf381a465cd115762b9cf7c9a313c874bcDan Williams * attached disk devices. 76cc9203bf381a465cd115762b9cf7c9a313c874bcDan Williams */ 7789a7301f21fb00e753089671eb9e4132aab8ea08Dan Williamsstruct sci_power_control { 78cc9203bf381a465cd115762b9cf7c9a313c874bcDan Williams /** 79cc9203bf381a465cd115762b9cf7c9a313c874bcDan Williams * This field is set when the power control timer is running and cleared when 80cc9203bf381a465cd115762b9cf7c9a313c874bcDan Williams * it is not. 81cc9203bf381a465cd115762b9cf7c9a313c874bcDan Williams */ 82cc9203bf381a465cd115762b9cf7c9a313c874bcDan Williams bool timer_started; 83cc9203bf381a465cd115762b9cf7c9a313c874bcDan Williams 84cc9203bf381a465cd115762b9cf7c9a313c874bcDan Williams /** 850473661a125905240879456567e117ed8a58cf5dEdmund Nadolski * Timer to control when the directed attached disks can consume power. 86cc9203bf381a465cd115762b9cf7c9a313c874bcDan Williams */ 870473661a125905240879456567e117ed8a58cf5dEdmund Nadolski struct sci_timer timer; 88cc9203bf381a465cd115762b9cf7c9a313c874bcDan Williams 89cc9203bf381a465cd115762b9cf7c9a313c874bcDan Williams /** 90cc9203bf381a465cd115762b9cf7c9a313c874bcDan Williams * This field is used to keep track of how many phys are put into the 91cc9203bf381a465cd115762b9cf7c9a313c874bcDan Williams * requesters field. 92cc9203bf381a465cd115762b9cf7c9a313c874bcDan Williams */ 93cc9203bf381a465cd115762b9cf7c9a313c874bcDan Williams u8 phys_waiting; 94cc9203bf381a465cd115762b9cf7c9a313c874bcDan Williams 95cc9203bf381a465cd115762b9cf7c9a313c874bcDan Williams /** 96cc9203bf381a465cd115762b9cf7c9a313c874bcDan Williams * This field is used to keep track of how many phys have been granted to consume power 97cc9203bf381a465cd115762b9cf7c9a313c874bcDan Williams */ 98cc9203bf381a465cd115762b9cf7c9a313c874bcDan Williams u8 phys_granted_power; 99cc9203bf381a465cd115762b9cf7c9a313c874bcDan Williams 100cc9203bf381a465cd115762b9cf7c9a313c874bcDan Williams /** 101cc9203bf381a465cd115762b9cf7c9a313c874bcDan Williams * This field is an array of phys that we are waiting on. The phys are direct 10289a7301f21fb00e753089671eb9e4132aab8ea08Dan Williams * mapped into requesters via struct sci_phy.phy_index 103cc9203bf381a465cd115762b9cf7c9a313c874bcDan Williams */ 104852809559e4680ba4768262a6c3d21454fcd460eDan Williams struct isci_phy *requesters[SCI_MAX_PHYS]; 105cc9203bf381a465cd115762b9cf7c9a313c874bcDan Williams 106cc9203bf381a465cd115762b9cf7c9a313c874bcDan Williams}; 107cc9203bf381a465cd115762b9cf7c9a313c874bcDan Williams 10889a7301f21fb00e753089671eb9e4132aab8ea08Dan Williamsstruct sci_port_configuration_agent; 109d9dcb4ba791de2a06b19ac47cd61601cf3d4e208Dan Williamstypedef void (*port_config_fn)(struct isci_host *, 11089a7301f21fb00e753089671eb9e4132aab8ea08Dan Williams struct sci_port_configuration_agent *, 111ffe191c92ff195d73f9130b1490045ca2dd4c5e0Dan Williams struct isci_port *, struct isci_phy *); 11250a92d93148ec073efd2456b007e04ecae452086Dan Williamsbool is_port_config_apc(struct isci_host *ihost); 11350a92d93148ec073efd2456b007e04ecae452086Dan Williamsbool is_controller_start_complete(struct isci_host *ihost); 114e2f8db509fdd354bb7a68c86515e9d2d8909ccc9Dan Williams 11589a7301f21fb00e753089671eb9e4132aab8ea08Dan Williamsstruct sci_port_configuration_agent { 116e2f8db509fdd354bb7a68c86515e9d2d8909ccc9Dan Williams u16 phy_configured_mask; 117e2f8db509fdd354bb7a68c86515e9d2d8909ccc9Dan Williams u16 phy_ready_mask; 118e2f8db509fdd354bb7a68c86515e9d2d8909ccc9Dan Williams struct { 119e2f8db509fdd354bb7a68c86515e9d2d8909ccc9Dan Williams u8 min_index; 120e2f8db509fdd354bb7a68c86515e9d2d8909ccc9Dan Williams u8 max_index; 121e2f8db509fdd354bb7a68c86515e9d2d8909ccc9Dan Williams } phy_valid_port_range[SCI_MAX_PHYS]; 122e2f8db509fdd354bb7a68c86515e9d2d8909ccc9Dan Williams bool timer_pending; 123e2f8db509fdd354bb7a68c86515e9d2d8909ccc9Dan Williams port_config_fn link_up_handler; 124e2f8db509fdd354bb7a68c86515e9d2d8909ccc9Dan Williams port_config_fn link_down_handler; 125ac0eeb4f774261d1da21a68169f7ddd4f6c082fcEdmund Nadolski struct sci_timer timer; 126e2f8db509fdd354bb7a68c86515e9d2d8909ccc9Dan Williams}; 127e2f8db509fdd354bb7a68c86515e9d2d8909ccc9Dan Williams 128cc9203bf381a465cd115762b9cf7c9a313c874bcDan Williams/** 129d9dcb4ba791de2a06b19ac47cd61601cf3d4e208Dan Williams * isci_host - primary host/controller object 130d9dcb4ba791de2a06b19ac47cd61601cf3d4e208Dan Williams * @timer: timeout start/stop operations 131d9dcb4ba791de2a06b19ac47cd61601cf3d4e208Dan Williams * @device_table: rni (hw remote node index) to remote device lookup table 132d9dcb4ba791de2a06b19ac47cd61601cf3d4e208Dan Williams * @available_remote_nodes: rni allocator 133d9dcb4ba791de2a06b19ac47cd61601cf3d4e208Dan Williams * @power_control: manage device spin up 134d9dcb4ba791de2a06b19ac47cd61601cf3d4e208Dan Williams * @io_request_sequence: generation number for tci's (task contexts) 135d9dcb4ba791de2a06b19ac47cd61601cf3d4e208Dan Williams * @task_context_table: hw task context table 136d9dcb4ba791de2a06b19ac47cd61601cf3d4e208Dan Williams * @remote_node_context_table: hw remote node context table 137d9dcb4ba791de2a06b19ac47cd61601cf3d4e208Dan Williams * @completion_queue: hw-producer driver-consumer communication ring 138d9dcb4ba791de2a06b19ac47cd61601cf3d4e208Dan Williams * @completion_queue_get: tracks the driver 'head' of the ring to notify hw 139d9dcb4ba791de2a06b19ac47cd61601cf3d4e208Dan Williams * @logical_port_entries: min({driver|silicon}-supported-port-count) 140d9dcb4ba791de2a06b19ac47cd61601cf3d4e208Dan Williams * @remote_node_entries: min({driver|silicon}-supported-node-count) 141d9dcb4ba791de2a06b19ac47cd61601cf3d4e208Dan Williams * @task_context_entries: min({driver|silicon}-supported-task-count) 142d9dcb4ba791de2a06b19ac47cd61601cf3d4e208Dan Williams * @phy_timer: phy startup timer 143d9dcb4ba791de2a06b19ac47cd61601cf3d4e208Dan Williams * @invalid_phy_mask: if an invalid_link_up notification is reported a bit for 144d9dcb4ba791de2a06b19ac47cd61601cf3d4e208Dan Williams * the phy index is set so further notifications are not 145d9dcb4ba791de2a06b19ac47cd61601cf3d4e208Dan Williams * made. Once the phy reports link up and is made part of a 146d9dcb4ba791de2a06b19ac47cd61601cf3d4e208Dan Williams * port then this bit is cleared. 147d9dcb4ba791de2a06b19ac47cd61601cf3d4e208Dan Williams 148cc9203bf381a465cd115762b9cf7c9a313c874bcDan Williams */ 149d9dcb4ba791de2a06b19ac47cd61601cf3d4e208Dan Williamsstruct isci_host { 150e301370ac553a9a0ac0d1d25e769b86cf60395b3Edmund Nadolski struct sci_base_state_machine sm; 151d9dcb4ba791de2a06b19ac47cd61601cf3d4e208Dan Williams /* XXX can we time this externally */ 1526cb5853d3e252015eaf72d3761491e3da959556dEdmund Nadolski struct sci_timer timer; 153d9dcb4ba791de2a06b19ac47cd61601cf3d4e208Dan Williams /* XXX drop reference module params directly */ 15489a7301f21fb00e753089671eb9e4132aab8ea08Dan Williams struct sci_user_parameters user_parameters; 155d9dcb4ba791de2a06b19ac47cd61601cf3d4e208Dan Williams /* XXX no need to be a union */ 15689a7301f21fb00e753089671eb9e4132aab8ea08Dan Williams struct sci_oem_params oem_parameters; 15789a7301f21fb00e753089671eb9e4132aab8ea08Dan Williams struct sci_port_configuration_agent port_agent; 15878a6f06e0e82125787d7aa308fe28c2c8381540cDan Williams struct isci_remote_device *device_table[SCI_MAX_REMOTE_DEVICES]; 15989a7301f21fb00e753089671eb9e4132aab8ea08Dan Williams struct sci_remote_node_table available_remote_nodes; 16089a7301f21fb00e753089671eb9e4132aab8ea08Dan Williams struct sci_power_control power_control; 161dd047c8e2bca22856050dbe0378a37cf44eecc97Dan Williams u8 io_request_sequence[SCI_MAX_IO_REQUESTS]; 162cc9203bf381a465cd115762b9cf7c9a313c874bcDan Williams struct scu_task_context *task_context_table; 163abec912d71c44bbd642ce12ad98aab76f5a53163Dan Williams dma_addr_t tc_dma; 164cc9203bf381a465cd115762b9cf7c9a313c874bcDan Williams union scu_remote_node_context *remote_node_context_table; 165abec912d71c44bbd642ce12ad98aab76f5a53163Dan Williams dma_addr_t rnc_dma; 166cc9203bf381a465cd115762b9cf7c9a313c874bcDan Williams u32 *completion_queue; 167abec912d71c44bbd642ce12ad98aab76f5a53163Dan Williams dma_addr_t cq_dma; 168cc9203bf381a465cd115762b9cf7c9a313c874bcDan Williams u32 completion_queue_get; 169cc9203bf381a465cd115762b9cf7c9a313c874bcDan Williams u32 logical_port_entries; 170cc9203bf381a465cd115762b9cf7c9a313c874bcDan Williams u32 remote_node_entries; 171cc9203bf381a465cd115762b9cf7c9a313c874bcDan Williams u32 task_context_entries; 172abec912d71c44bbd642ce12ad98aab76f5a53163Dan Williams void *ufi_buf; 173abec912d71c44bbd642ce12ad98aab76f5a53163Dan Williams dma_addr_t ufi_dma; 17489a7301f21fb00e753089671eb9e4132aab8ea08Dan Williams struct sci_unsolicited_frame_control uf_control; 175cc9203bf381a465cd115762b9cf7c9a313c874bcDan Williams 176d9dcb4ba791de2a06b19ac47cd61601cf3d4e208Dan Williams /* phy startup */ 177bb3dbdf6c835a145e46119ed18a920a774694583Edmund Nadolski struct sci_timer phy_timer; 178d9dcb4ba791de2a06b19ac47cd61601cf3d4e208Dan Williams /* XXX kill */ 179cc9203bf381a465cd115762b9cf7c9a313c874bcDan Williams bool phy_startup_timer_pending; 180cc9203bf381a465cd115762b9cf7c9a313c874bcDan Williams u32 next_phy_to_start; 18134a991587a5cc9f78960c2c9beea217866458c41Dan Williams /* XXX convert to unsigned long and use bitops */ 182cc9203bf381a465cd115762b9cf7c9a313c874bcDan Williams u8 invalid_phy_mask; 183cc9203bf381a465cd115762b9cf7c9a313c874bcDan Williams 184d9dcb4ba791de2a06b19ac47cd61601cf3d4e208Dan Williams /* TODO attempt dynamic interrupt coalescing scheme */ 185cc9203bf381a465cd115762b9cf7c9a313c874bcDan Williams u16 interrupt_coalesce_number; 186cc9203bf381a465cd115762b9cf7c9a313c874bcDan Williams u32 interrupt_coalesce_timeout; 187cc9203bf381a465cd115762b9cf7c9a313c874bcDan Williams struct smu_registers __iomem *smu_registers; 188cc9203bf381a465cd115762b9cf7c9a313c874bcDan Williams struct scu_registers __iomem *scu_registers; 189cc9203bf381a465cd115762b9cf7c9a313c874bcDan Williams 190ac668c69709c7d927015c5cf3d9e87bf4eaaf57dDan Williams u16 tci_head; 191ac668c69709c7d927015c5cf3d9e87bf4eaaf57dDan Williams u16 tci_tail; 192ac668c69709c7d927015c5cf3d9e87bf4eaaf57dDan Williams u16 tci_pool[SCI_MAX_IO_REQUESTS]; 193ac668c69709c7d927015c5cf3d9e87bf4eaaf57dDan Williams 1946f231dda68080759f1aed3769896e94c73099f0fDan Williams int id; /* unique within a given pci device */ 1956f231dda68080759f1aed3769896e94c73099f0fDan Williams struct isci_phy phys[SCI_MAX_PHYS]; 196e531381e2f8a68b8737c63c7bb890ad80b2470bdDan Williams struct isci_port ports[SCI_MAX_PORTS + 1]; /* includes dummy port */ 197c132f692085ac624d7c8123df781846c8dcb3166Dan Williams struct asd_sas_port sas_ports[SCI_MAX_PORTS]; 1986f231dda68080759f1aed3769896e94c73099f0fDan Williams struct sas_ha_struct sas_ha; 1996f231dda68080759f1aed3769896e94c73099f0fDan Williams 2006f231dda68080759f1aed3769896e94c73099f0fDan Williams struct pci_dev *pdev; 2010cf89d1d27c1bdd0abf1714096f98ea44704dcffDan Williams #define IHOST_START_PENDING 0 2020cf89d1d27c1bdd0abf1714096f98ea44704dcffDan Williams #define IHOST_STOP_PENDING 1 2032396a2650a5a39634e3ad6b29e1104944e5ab88fDan Williams #define IHOST_IRQ_ENABLED 2 2040cf89d1d27c1bdd0abf1714096f98ea44704dcffDan Williams unsigned long flags; 2050cf89d1d27c1bdd0abf1714096f98ea44704dcffDan Williams wait_queue_head_t eventq; 2066f231dda68080759f1aed3769896e94c73099f0fDan Williams struct tasklet_struct completion_tasklet; 2076f231dda68080759f1aed3769896e94c73099f0fDan Williams spinlock_t scic_lock; 208db0562509800a2d4cb5cb14a66413c30484f165cDan Williams struct isci_request *reqs[SCI_MAX_IO_REQUESTS]; 20957f20f4ed6fb702339be2ef4dea9d15e6a7d0d07Dan Williams struct isci_remote_device devices[SCI_MAX_REMOTE_DEVICES]; 2106f231dda68080759f1aed3769896e94c73099f0fDan Williams}; 2116f231dda68080759f1aed3769896e94c73099f0fDan Williams 2126f231dda68080759f1aed3769896e94c73099f0fDan Williams/** 21389a7301f21fb00e753089671eb9e4132aab8ea08Dan Williams * enum sci_controller_states - This enumeration depicts all the states 214cc9203bf381a465cd115762b9cf7c9a313c874bcDan Williams * for the common controller state machine. 215cc9203bf381a465cd115762b9cf7c9a313c874bcDan Williams */ 21689a7301f21fb00e753089671eb9e4132aab8ea08Dan Williamsenum sci_controller_states { 217cc9203bf381a465cd115762b9cf7c9a313c874bcDan Williams /** 218cc9203bf381a465cd115762b9cf7c9a313c874bcDan Williams * Simply the initial state for the base controller state machine. 219cc9203bf381a465cd115762b9cf7c9a313c874bcDan Williams */ 220e301370ac553a9a0ac0d1d25e769b86cf60395b3Edmund Nadolski SCIC_INITIAL = 0, 221cc9203bf381a465cd115762b9cf7c9a313c874bcDan Williams 222cc9203bf381a465cd115762b9cf7c9a313c874bcDan Williams /** 223cc9203bf381a465cd115762b9cf7c9a313c874bcDan Williams * This state indicates that the controller is reset. The memory for 224cc9203bf381a465cd115762b9cf7c9a313c874bcDan Williams * the controller is in it's initial state, but the controller requires 225cc9203bf381a465cd115762b9cf7c9a313c874bcDan Williams * initialization. 226cc9203bf381a465cd115762b9cf7c9a313c874bcDan Williams * This state is entered from the INITIAL state. 227cc9203bf381a465cd115762b9cf7c9a313c874bcDan Williams * This state is entered from the RESETTING state. 228cc9203bf381a465cd115762b9cf7c9a313c874bcDan Williams */ 229e301370ac553a9a0ac0d1d25e769b86cf60395b3Edmund Nadolski SCIC_RESET, 230cc9203bf381a465cd115762b9cf7c9a313c874bcDan Williams 231cc9203bf381a465cd115762b9cf7c9a313c874bcDan Williams /** 232cc9203bf381a465cd115762b9cf7c9a313c874bcDan Williams * This state is typically an action state that indicates the controller 233cc9203bf381a465cd115762b9cf7c9a313c874bcDan Williams * is in the process of initialization. In this state no new IO operations 234cc9203bf381a465cd115762b9cf7c9a313c874bcDan Williams * are permitted. 235cc9203bf381a465cd115762b9cf7c9a313c874bcDan Williams * This state is entered from the RESET state. 236cc9203bf381a465cd115762b9cf7c9a313c874bcDan Williams */ 237e301370ac553a9a0ac0d1d25e769b86cf60395b3Edmund Nadolski SCIC_INITIALIZING, 238cc9203bf381a465cd115762b9cf7c9a313c874bcDan Williams 239cc9203bf381a465cd115762b9cf7c9a313c874bcDan Williams /** 240cc9203bf381a465cd115762b9cf7c9a313c874bcDan Williams * This state indicates that the controller has been successfully 241cc9203bf381a465cd115762b9cf7c9a313c874bcDan Williams * initialized. In this state no new IO operations are permitted. 242cc9203bf381a465cd115762b9cf7c9a313c874bcDan Williams * This state is entered from the INITIALIZING state. 243cc9203bf381a465cd115762b9cf7c9a313c874bcDan Williams */ 244e301370ac553a9a0ac0d1d25e769b86cf60395b3Edmund Nadolski SCIC_INITIALIZED, 245cc9203bf381a465cd115762b9cf7c9a313c874bcDan Williams 246cc9203bf381a465cd115762b9cf7c9a313c874bcDan Williams /** 247cc9203bf381a465cd115762b9cf7c9a313c874bcDan Williams * This state indicates the the controller is in the process of becoming 248cc9203bf381a465cd115762b9cf7c9a313c874bcDan Williams * ready (i.e. starting). In this state no new IO operations are permitted. 249cc9203bf381a465cd115762b9cf7c9a313c874bcDan Williams * This state is entered from the INITIALIZED state. 250cc9203bf381a465cd115762b9cf7c9a313c874bcDan Williams */ 251e301370ac553a9a0ac0d1d25e769b86cf60395b3Edmund Nadolski SCIC_STARTING, 252cc9203bf381a465cd115762b9cf7c9a313c874bcDan Williams 253cc9203bf381a465cd115762b9cf7c9a313c874bcDan Williams /** 254cc9203bf381a465cd115762b9cf7c9a313c874bcDan Williams * This state indicates the controller is now ready. Thus, the user 255cc9203bf381a465cd115762b9cf7c9a313c874bcDan Williams * is able to perform IO operations on the controller. 256cc9203bf381a465cd115762b9cf7c9a313c874bcDan Williams * This state is entered from the STARTING state. 257cc9203bf381a465cd115762b9cf7c9a313c874bcDan Williams */ 258e301370ac553a9a0ac0d1d25e769b86cf60395b3Edmund Nadolski SCIC_READY, 259cc9203bf381a465cd115762b9cf7c9a313c874bcDan Williams 260cc9203bf381a465cd115762b9cf7c9a313c874bcDan Williams /** 261cc9203bf381a465cd115762b9cf7c9a313c874bcDan Williams * This state is typically an action state that indicates the controller 262cc9203bf381a465cd115762b9cf7c9a313c874bcDan Williams * is in the process of resetting. Thus, the user is unable to perform 263cc9203bf381a465cd115762b9cf7c9a313c874bcDan Williams * IO operations on the controller. A reset is considered destructive in 264cc9203bf381a465cd115762b9cf7c9a313c874bcDan Williams * most cases. 265cc9203bf381a465cd115762b9cf7c9a313c874bcDan Williams * This state is entered from the READY state. 266cc9203bf381a465cd115762b9cf7c9a313c874bcDan Williams * This state is entered from the FAILED state. 267cc9203bf381a465cd115762b9cf7c9a313c874bcDan Williams * This state is entered from the STOPPED state. 268cc9203bf381a465cd115762b9cf7c9a313c874bcDan Williams */ 269e301370ac553a9a0ac0d1d25e769b86cf60395b3Edmund Nadolski SCIC_RESETTING, 270cc9203bf381a465cd115762b9cf7c9a313c874bcDan Williams 271cc9203bf381a465cd115762b9cf7c9a313c874bcDan Williams /** 272cc9203bf381a465cd115762b9cf7c9a313c874bcDan Williams * This state indicates that the controller is in the process of stopping. 273cc9203bf381a465cd115762b9cf7c9a313c874bcDan Williams * In this state no new IO operations are permitted, but existing IO 274cc9203bf381a465cd115762b9cf7c9a313c874bcDan Williams * operations are allowed to complete. 275cc9203bf381a465cd115762b9cf7c9a313c874bcDan Williams * This state is entered from the READY state. 276cc9203bf381a465cd115762b9cf7c9a313c874bcDan Williams */ 277e301370ac553a9a0ac0d1d25e769b86cf60395b3Edmund Nadolski SCIC_STOPPING, 278cc9203bf381a465cd115762b9cf7c9a313c874bcDan Williams 279cc9203bf381a465cd115762b9cf7c9a313c874bcDan Williams /** 280cc9203bf381a465cd115762b9cf7c9a313c874bcDan Williams * This state indicates that the controller could not successfully be 281cc9203bf381a465cd115762b9cf7c9a313c874bcDan Williams * initialized. In this state no new IO operations are permitted. 282cc9203bf381a465cd115762b9cf7c9a313c874bcDan Williams * This state is entered from the INITIALIZING state. 283cc9203bf381a465cd115762b9cf7c9a313c874bcDan Williams * This state is entered from the STARTING state. 284cc9203bf381a465cd115762b9cf7c9a313c874bcDan Williams * This state is entered from the STOPPING state. 285cc9203bf381a465cd115762b9cf7c9a313c874bcDan Williams * This state is entered from the RESETTING state. 286cc9203bf381a465cd115762b9cf7c9a313c874bcDan Williams */ 287e301370ac553a9a0ac0d1d25e769b86cf60395b3Edmund Nadolski SCIC_FAILED, 288cc9203bf381a465cd115762b9cf7c9a313c874bcDan Williams}; 289cc9203bf381a465cd115762b9cf7c9a313c874bcDan Williams 290cc9203bf381a465cd115762b9cf7c9a313c874bcDan Williams/** 2916f231dda68080759f1aed3769896e94c73099f0fDan Williams * struct isci_pci_info - This class represents the pci function containing the 2926f231dda68080759f1aed3769896e94c73099f0fDan Williams * controllers. Depending on PCI SKU, there could be up to 2 controllers in 2936f231dda68080759f1aed3769896e94c73099f0fDan Williams * the PCI function. 2946f231dda68080759f1aed3769896e94c73099f0fDan Williams */ 2956f231dda68080759f1aed3769896e94c73099f0fDan Williams#define SCI_MAX_MSIX_INT (SCI_NUM_MSI_X_INT*SCI_MAX_CONTROLLERS) 2966f231dda68080759f1aed3769896e94c73099f0fDan Williams 2976f231dda68080759f1aed3769896e94c73099f0fDan Williamsstruct isci_pci_info { 2986f231dda68080759f1aed3769896e94c73099f0fDan Williams struct msix_entry msix_entries[SCI_MAX_MSIX_INT]; 299b329aff107543c3c4db26c1572405034c3baf906Dan Williams struct isci_host *hosts[SCI_MAX_CONTROLLERS]; 300d044af17aacd03a1f4fced1af4b7570d205c8fd9Dan Williams struct isci_orom *orom; 3016f231dda68080759f1aed3769896e94c73099f0fDan Williams}; 3026f231dda68080759f1aed3769896e94c73099f0fDan Williams 3036f231dda68080759f1aed3769896e94c73099f0fDan Williamsstatic inline struct isci_pci_info *to_pci_info(struct pci_dev *pdev) 3046f231dda68080759f1aed3769896e94c73099f0fDan Williams{ 3056f231dda68080759f1aed3769896e94c73099f0fDan Williams return pci_get_drvdata(pdev); 3066f231dda68080759f1aed3769896e94c73099f0fDan Williams} 3076f231dda68080759f1aed3769896e94c73099f0fDan Williams 308d1dc5e2d21a55538167d7ce82aa147c91c5e6788Dan Williamsstatic inline struct Scsi_Host *to_shost(struct isci_host *ihost) 309d1dc5e2d21a55538167d7ce82aa147c91c5e6788Dan Williams{ 310d1dc5e2d21a55538167d7ce82aa147c91c5e6788Dan Williams return ihost->sas_ha.core.shost; 311d1dc5e2d21a55538167d7ce82aa147c91c5e6788Dan Williams} 312d1dc5e2d21a55538167d7ce82aa147c91c5e6788Dan Williams 313b329aff107543c3c4db26c1572405034c3baf906Dan Williams#define for_each_isci_host(id, ihost, pdev) \ 314c59053a23d586675c25d789a7494adfdc02fba57Lukasz Dorau for (id = 0; id < SCI_MAX_CONTROLLERS && \ 315c59053a23d586675c25d789a7494adfdc02fba57Lukasz Dorau (ihost = to_pci_info(pdev)->hosts[id]); id++) 3166f231dda68080759f1aed3769896e94c73099f0fDan Williams 3170cf89d1d27c1bdd0abf1714096f98ea44704dcffDan Williamsstatic inline void wait_for_start(struct isci_host *ihost) 3180cf89d1d27c1bdd0abf1714096f98ea44704dcffDan Williams{ 3190cf89d1d27c1bdd0abf1714096f98ea44704dcffDan Williams wait_event(ihost->eventq, !test_bit(IHOST_START_PENDING, &ihost->flags)); 3200cf89d1d27c1bdd0abf1714096f98ea44704dcffDan Williams} 3210cf89d1d27c1bdd0abf1714096f98ea44704dcffDan Williams 3220cf89d1d27c1bdd0abf1714096f98ea44704dcffDan Williamsstatic inline void wait_for_stop(struct isci_host *ihost) 3230cf89d1d27c1bdd0abf1714096f98ea44704dcffDan Williams{ 3240cf89d1d27c1bdd0abf1714096f98ea44704dcffDan Williams wait_event(ihost->eventq, !test_bit(IHOST_STOP_PENDING, &ihost->flags)); 3250cf89d1d27c1bdd0abf1714096f98ea44704dcffDan Williams} 3260cf89d1d27c1bdd0abf1714096f98ea44704dcffDan Williams 3276ad31fec306d532031b2f778f8656385df1b9d8fDan Williamsstatic inline void wait_for_device_start(struct isci_host *ihost, struct isci_remote_device *idev) 3286ad31fec306d532031b2f778f8656385df1b9d8fDan Williams{ 3296ad31fec306d532031b2f778f8656385df1b9d8fDan Williams wait_event(ihost->eventq, !test_bit(IDEV_START_PENDING, &idev->flags)); 3306ad31fec306d532031b2f778f8656385df1b9d8fDan Williams} 3316ad31fec306d532031b2f778f8656385df1b9d8fDan Williams 3326ad31fec306d532031b2f778f8656385df1b9d8fDan Williamsstatic inline void wait_for_device_stop(struct isci_host *ihost, struct isci_remote_device *idev) 3336ad31fec306d532031b2f778f8656385df1b9d8fDan Williams{ 334d9c37390c4f02153188a64a7a89fa6798dc3ffc2Dan Williams wait_event(ihost->eventq, !test_bit(IDEV_STOP_PENDING, &idev->flags)); 3356ad31fec306d532031b2f778f8656385df1b9d8fDan Williams} 3360cf89d1d27c1bdd0abf1714096f98ea44704dcffDan Williams 3374393aa4e6b9517a666f0ef6b774fd421a9dc4c68Dan Williamsstatic inline struct isci_host *dev_to_ihost(struct domain_device *dev) 3384393aa4e6b9517a666f0ef6b774fd421a9dc4c68Dan Williams{ 3394393aa4e6b9517a666f0ef6b774fd421a9dc4c68Dan Williams return dev->port->ha->lldd_ha; 3404393aa4e6b9517a666f0ef6b774fd421a9dc4c68Dan Williams} 3416f231dda68080759f1aed3769896e94c73099f0fDan Williams 342de2eb4d5c5c25e8fb75d1e19092f24b83cb7d8d5Jeff Skirvinstatic inline struct isci_host *idev_to_ihost(struct isci_remote_device *idev) 343de2eb4d5c5c25e8fb75d1e19092f24b83cb7d8d5Jeff Skirvin{ 344de2eb4d5c5c25e8fb75d1e19092f24b83cb7d8d5Jeff Skirvin return dev_to_ihost(idev->domain_dev); 345de2eb4d5c5c25e8fb75d1e19092f24b83cb7d8d5Jeff Skirvin} 346de2eb4d5c5c25e8fb75d1e19092f24b83cb7d8d5Jeff Skirvin 34734a991587a5cc9f78960c2c9beea217866458c41Dan Williams/* we always use protocol engine group zero */ 34834a991587a5cc9f78960c2c9beea217866458c41Dan Williams#define ISCI_PEG 0 3496f231dda68080759f1aed3769896e94c73099f0fDan Williams 35089a7301f21fb00e753089671eb9e4132aab8ea08Dan Williams/* see sci_controller_io_tag_allocate|free for how seq and tci are built */ 351dd047c8e2bca22856050dbe0378a37cf44eecc97Dan Williams#define ISCI_TAG(seq, tci) (((u16) (seq)) << 12 | tci) 352cc9203bf381a465cd115762b9cf7c9a313c874bcDan Williams 353dd047c8e2bca22856050dbe0378a37cf44eecc97Dan Williams/* these are returned by the hardware, so sanitize them */ 354dd047c8e2bca22856050dbe0378a37cf44eecc97Dan Williams#define ISCI_TAG_SEQ(tag) (((tag) >> 12) & (SCI_MAX_SEQ-1)) 355dd047c8e2bca22856050dbe0378a37cf44eecc97Dan Williams#define ISCI_TAG_TCI(tag) ((tag) & (SCI_MAX_IO_REQUESTS-1)) 356cc9203bf381a465cd115762b9cf7c9a313c874bcDan Williams 3579b4be528999483d70a1ffc0accd102e477d5a503Dan Williams/* interrupt coalescing baseline: 9 == 3 to 5us interrupt delay per command */ 3589b4be528999483d70a1ffc0accd102e477d5a503Dan Williams#define ISCI_COALESCE_BASE 9 3599b4be528999483d70a1ffc0accd102e477d5a503Dan Williams 360cc9203bf381a465cd115762b9cf7c9a313c874bcDan Williams/* expander attached sata devices require 3 rnc slots */ 36189a7301f21fb00e753089671eb9e4132aab8ea08Dan Williamsstatic inline int sci_remote_device_node_count(struct isci_remote_device *idev) 362cc9203bf381a465cd115762b9cf7c9a313c874bcDan Williams{ 36378a6f06e0e82125787d7aa308fe28c2c8381540cDan Williams struct domain_device *dev = idev->domain_dev; 364cc9203bf381a465cd115762b9cf7c9a313c874bcDan Williams 36511cc51835af0e6fbb2da9cb012bdaaa036497b7fDan Williams if (dev_is_sata(dev) && dev->parent) 366cc9203bf381a465cd115762b9cf7c9a313c874bcDan Williams return SCU_STP_REMOTE_NODE_COUNT; 367cc9203bf381a465cd115762b9cf7c9a313c874bcDan Williams return SCU_SSP_REMOTE_NODE_COUNT; 368cc9203bf381a465cd115762b9cf7c9a313c874bcDan Williams} 369cc9203bf381a465cd115762b9cf7c9a313c874bcDan Williams 370cc9203bf381a465cd115762b9cf7c9a313c874bcDan Williams/** 37189a7301f21fb00e753089671eb9e4132aab8ea08Dan Williams * sci_controller_clear_invalid_phy() - 372cc9203bf381a465cd115762b9cf7c9a313c874bcDan Williams * 373cc9203bf381a465cd115762b9cf7c9a313c874bcDan Williams * This macro will clear the bit in the invalid phy mask for this controller 374cc9203bf381a465cd115762b9cf7c9a313c874bcDan Williams * object. This is used to control messages reported for invalid link up 375cc9203bf381a465cd115762b9cf7c9a313c874bcDan Williams * notifications. 376cc9203bf381a465cd115762b9cf7c9a313c874bcDan Williams */ 37789a7301f21fb00e753089671eb9e4132aab8ea08Dan Williams#define sci_controller_clear_invalid_phy(controller, phy) \ 378cc9203bf381a465cd115762b9cf7c9a313c874bcDan Williams ((controller)->invalid_phy_mask &= ~(1 << (phy)->phy_index)) 379cc9203bf381a465cd115762b9cf7c9a313c874bcDan Williams 38078a6f06e0e82125787d7aa308fe28c2c8381540cDan Williamsstatic inline struct device *scirdev_to_dev(struct isci_remote_device *idev) 381cc9203bf381a465cd115762b9cf7c9a313c874bcDan Williams{ 382cc9203bf381a465cd115762b9cf7c9a313c874bcDan Williams if (!idev || !idev->isci_port || !idev->isci_port->isci_host) 383cc9203bf381a465cd115762b9cf7c9a313c874bcDan Williams return NULL; 384cc9203bf381a465cd115762b9cf7c9a313c874bcDan Williams 385cc9203bf381a465cd115762b9cf7c9a313c874bcDan Williams return &idev->isci_port->isci_host->pdev->dev; 386cc9203bf381a465cd115762b9cf7c9a313c874bcDan Williams} 387cc9203bf381a465cd115762b9cf7c9a313c874bcDan Williams 388dc00c8b6940aa10ab1ce6a4d10b1bfe7b848781bDan Williamsstatic inline bool is_a2(struct pci_dev *pdev) 389cc9203bf381a465cd115762b9cf7c9a313c874bcDan Williams{ 390dc00c8b6940aa10ab1ce6a4d10b1bfe7b848781bDan Williams if (pdev->revision < 4) 391dc00c8b6940aa10ab1ce6a4d10b1bfe7b848781bDan Williams return true; 392dc00c8b6940aa10ab1ce6a4d10b1bfe7b848781bDan Williams return false; 393cc9203bf381a465cd115762b9cf7c9a313c874bcDan Williams} 394cc9203bf381a465cd115762b9cf7c9a313c874bcDan Williams 395dc00c8b6940aa10ab1ce6a4d10b1bfe7b848781bDan Williamsstatic inline bool is_b0(struct pci_dev *pdev) 396cc9203bf381a465cd115762b9cf7c9a313c874bcDan Williams{ 397dc00c8b6940aa10ab1ce6a4d10b1bfe7b848781bDan Williams if (pdev->revision == 4) 398dc00c8b6940aa10ab1ce6a4d10b1bfe7b848781bDan Williams return true; 399dc00c8b6940aa10ab1ce6a4d10b1bfe7b848781bDan Williams return false; 400dbb0743a58825d94f1b3fdfa90a8d61dfef88f7bAdam Gruchala} 401dbb0743a58825d94f1b3fdfa90a8d61dfef88f7bAdam Gruchala 402dc00c8b6940aa10ab1ce6a4d10b1bfe7b848781bDan Williamsstatic inline bool is_c0(struct pci_dev *pdev) 403dbb0743a58825d94f1b3fdfa90a8d61dfef88f7bAdam Gruchala{ 404afd13a1f2b05157c7621d87dfe89ea6ea9061bd8Jeff Skirvin if (pdev->revision == 5) 405afd13a1f2b05157c7621d87dfe89ea6ea9061bd8Jeff Skirvin return true; 406afd13a1f2b05157c7621d87dfe89ea6ea9061bd8Jeff Skirvin return false; 407afd13a1f2b05157c7621d87dfe89ea6ea9061bd8Jeff Skirvin} 408afd13a1f2b05157c7621d87dfe89ea6ea9061bd8Jeff Skirvin 409afd13a1f2b05157c7621d87dfe89ea6ea9061bd8Jeff Skirvinstatic inline bool is_c1(struct pci_dev *pdev) 410afd13a1f2b05157c7621d87dfe89ea6ea9061bd8Jeff Skirvin{ 411afd13a1f2b05157c7621d87dfe89ea6ea9061bd8Jeff Skirvin if (pdev->revision >= 6) 412dc00c8b6940aa10ab1ce6a4d10b1bfe7b848781bDan Williams return true; 413dc00c8b6940aa10ab1ce6a4d10b1bfe7b848781bDan Williams return false; 414cc9203bf381a465cd115762b9cf7c9a313c874bcDan Williams} 415cc9203bf381a465cd115762b9cf7c9a313c874bcDan Williams 4169fee607f0b29adabd72265a847b8e421dff10d66Jeff Skirvinenum cable_selections { 4179fee607f0b29adabd72265a847b8e421dff10d66Jeff Skirvin short_cable = 0, 4189fee607f0b29adabd72265a847b8e421dff10d66Jeff Skirvin long_cable = 1, 4199fee607f0b29adabd72265a847b8e421dff10d66Jeff Skirvin medium_cable = 2, 4209fee607f0b29adabd72265a847b8e421dff10d66Jeff Skirvin undefined_cable = 3 4219fee607f0b29adabd72265a847b8e421dff10d66Jeff Skirvin}; 4229fee607f0b29adabd72265a847b8e421dff10d66Jeff Skirvin 4239fee607f0b29adabd72265a847b8e421dff10d66Jeff Skirvin#define CABLE_OVERRIDE_DISABLED (0x10000) 4249fee607f0b29adabd72265a847b8e421dff10d66Jeff Skirvin 4259fee607f0b29adabd72265a847b8e421dff10d66Jeff Skirvinstatic inline int is_cable_select_overridden(void) 4269fee607f0b29adabd72265a847b8e421dff10d66Jeff Skirvin{ 4279fee607f0b29adabd72265a847b8e421dff10d66Jeff Skirvin return cable_selection_override < CABLE_OVERRIDE_DISABLED; 4289fee607f0b29adabd72265a847b8e421dff10d66Jeff Skirvin} 4299fee607f0b29adabd72265a847b8e421dff10d66Jeff Skirvin 4309fee607f0b29adabd72265a847b8e421dff10d66Jeff Skirvinenum cable_selections decode_cable_selection(struct isci_host *ihost, int phy); 4319fee607f0b29adabd72265a847b8e421dff10d66Jeff Skirvinvoid validate_cable_selections(struct isci_host *ihost); 4329fee607f0b29adabd72265a847b8e421dff10d66Jeff Skirvinchar *lookup_cable_names(enum cable_selections); 4339fee607f0b29adabd72265a847b8e421dff10d66Jeff Skirvin 434ad4f4c1de80abdda5d55315289505598aa78e355Dan Williams/* set hw control for 'activity', even though active enclosures seem to drive 435ad4f4c1de80abdda5d55315289505598aa78e355Dan Williams * the activity led on their own. Skip setting FSENG control on 'status' due 436ad4f4c1de80abdda5d55315289505598aa78e355Dan Williams * to unexpected operation and 'error' due to not being a supported automatic 437ad4f4c1de80abdda5d55315289505598aa78e355Dan Williams * FSENG output 438ad4f4c1de80abdda5d55315289505598aa78e355Dan Williams */ 439ad4f4c1de80abdda5d55315289505598aa78e355Dan Williams#define SGPIO_HW_CONTROL 0x00000443 440ad4f4c1de80abdda5d55315289505598aa78e355Dan Williams 441ad4f4c1de80abdda5d55315289505598aa78e355Dan Williamsstatic inline int isci_gpio_count(struct isci_host *ihost) 442ad4f4c1de80abdda5d55315289505598aa78e355Dan Williams{ 443ad4f4c1de80abdda5d55315289505598aa78e355Dan Williams return ARRAY_SIZE(ihost->scu_registers->peg0.sgpio.output_data_select); 444ad4f4c1de80abdda5d55315289505598aa78e355Dan Williams} 445ad4f4c1de80abdda5d55315289505598aa78e355Dan Williams 44689a7301f21fb00e753089671eb9e4132aab8ea08Dan Williamsvoid sci_controller_post_request(struct isci_host *ihost, 447cc9203bf381a465cd115762b9cf7c9a313c874bcDan Williams u32 request); 44889a7301f21fb00e753089671eb9e4132aab8ea08Dan Williamsvoid sci_controller_release_frame(struct isci_host *ihost, 449cc9203bf381a465cd115762b9cf7c9a313c874bcDan Williams u32 frame_index); 45089a7301f21fb00e753089671eb9e4132aab8ea08Dan Williamsvoid sci_controller_copy_sata_response(void *response_buffer, 451cc9203bf381a465cd115762b9cf7c9a313c874bcDan Williams void *frame_header, 452cc9203bf381a465cd115762b9cf7c9a313c874bcDan Williams void *frame_buffer); 45389a7301f21fb00e753089671eb9e4132aab8ea08Dan Williamsenum sci_status sci_controller_allocate_remote_node_context(struct isci_host *ihost, 45478a6f06e0e82125787d7aa308fe28c2c8381540cDan Williams struct isci_remote_device *idev, 455cc9203bf381a465cd115762b9cf7c9a313c874bcDan Williams u16 *node_id); 45689a7301f21fb00e753089671eb9e4132aab8ea08Dan Williamsvoid sci_controller_free_remote_node_context( 457d9dcb4ba791de2a06b19ac47cd61601cf3d4e208Dan Williams struct isci_host *ihost, 45878a6f06e0e82125787d7aa308fe28c2c8381540cDan Williams struct isci_remote_device *idev, 459cc9203bf381a465cd115762b9cf7c9a313c874bcDan Williams u16 node_id); 460cc9203bf381a465cd115762b9cf7c9a313c874bcDan Williams 461abec912d71c44bbd642ce12ad98aab76f5a53163Dan Williamsstruct isci_request *sci_request_by_tag(struct isci_host *ihost, u16 io_tag); 462abec912d71c44bbd642ce12ad98aab76f5a53163Dan Williamsvoid sci_controller_power_control_queue_insert(struct isci_host *ihost, 463abec912d71c44bbd642ce12ad98aab76f5a53163Dan Williams struct isci_phy *iphy); 464abec912d71c44bbd642ce12ad98aab76f5a53163Dan Williamsvoid sci_controller_power_control_queue_remove(struct isci_host *ihost, 465abec912d71c44bbd642ce12ad98aab76f5a53163Dan Williams struct isci_phy *iphy); 466abec912d71c44bbd642ce12ad98aab76f5a53163Dan Williamsvoid sci_controller_link_up(struct isci_host *ihost, struct isci_port *iport, 467abec912d71c44bbd642ce12ad98aab76f5a53163Dan Williams struct isci_phy *iphy); 468abec912d71c44bbd642ce12ad98aab76f5a53163Dan Williamsvoid sci_controller_link_down(struct isci_host *ihost, struct isci_port *iport, 469abec912d71c44bbd642ce12ad98aab76f5a53163Dan Williams struct isci_phy *iphy); 470abec912d71c44bbd642ce12ad98aab76f5a53163Dan Williamsvoid sci_controller_remote_device_stopped(struct isci_host *ihost, 471abec912d71c44bbd642ce12ad98aab76f5a53163Dan Williams struct isci_remote_device *idev); 472cc9203bf381a465cd115762b9cf7c9a313c874bcDan Williams 47389a7301f21fb00e753089671eb9e4132aab8ea08Dan Williamsenum sci_status sci_controller_continue_io(struct isci_request *ireq); 474cc9203bf381a465cd115762b9cf7c9a313c874bcDan Williamsint isci_host_scan_finished(struct Scsi_Host *, unsigned long); 475e468dc112f38220ee78bc0de64190eca9812749bArtur Wojcikvoid isci_host_start(struct Scsi_Host *); 476312e0c2455c18716cf640d4336dcb1e9e5053818Dan Williamsu16 isci_alloc_tag(struct isci_host *ihost); 477312e0c2455c18716cf640d4336dcb1e9e5053818Dan Williamsenum sci_status isci_free_tag(struct isci_host *ihost, u16 io_tag); 478312e0c2455c18716cf640d4336dcb1e9e5053818Dan Williamsvoid isci_tci_free(struct isci_host *ihost, u16 tci); 479f8381807ebdfffa34c2c5aa38eda33673d1a7adfJeff Skirvinvoid ireq_done(struct isci_host *ihost, struct isci_request *ireq, struct sas_task *task); 4806f231dda68080759f1aed3769896e94c73099f0fDan Williams 4816f231dda68080759f1aed3769896e94c73099f0fDan Williamsint isci_host_init(struct isci_host *); 482abec912d71c44bbd642ce12ad98aab76f5a53163Dan Williamsvoid isci_host_completion_routine(unsigned long data); 483abec912d71c44bbd642ce12ad98aab76f5a53163Dan Williamsvoid isci_host_deinit(struct isci_host *); 484abec912d71c44bbd642ce12ad98aab76f5a53163Dan Williamsvoid sci_controller_disable_interrupts(struct isci_host *ihost); 485eb608c3cb3f0a6b99252ea6a69fc0d2bbecf1f4fDan Williamsbool sci_controller_has_remote_devices_stopping(struct isci_host *ihost); 48650a92d93148ec073efd2456b007e04ecae452086Dan Williamsvoid sci_controller_transition_to_ready(struct isci_host *ihost, enum sci_status status); 487cc9203bf381a465cd115762b9cf7c9a313c874bcDan Williams 48889a7301f21fb00e753089671eb9e4132aab8ea08Dan Williamsenum sci_status sci_controller_start_io( 489d9dcb4ba791de2a06b19ac47cd61601cf3d4e208Dan Williams struct isci_host *ihost, 49078a6f06e0e82125787d7aa308fe28c2c8381540cDan Williams struct isci_remote_device *idev, 4915076a1a97e2fa61c847a5fdd4b1991faf7716da6Dan Williams struct isci_request *ireq); 492cc9203bf381a465cd115762b9cf7c9a313c874bcDan Williams 49389a7301f21fb00e753089671eb9e4132aab8ea08Dan Williamsenum sci_task_status sci_controller_start_task( 494d9dcb4ba791de2a06b19ac47cd61601cf3d4e208Dan Williams struct isci_host *ihost, 49578a6f06e0e82125787d7aa308fe28c2c8381540cDan Williams struct isci_remote_device *idev, 4965076a1a97e2fa61c847a5fdd4b1991faf7716da6Dan Williams struct isci_request *ireq); 497cc9203bf381a465cd115762b9cf7c9a313c874bcDan Williams 49889a7301f21fb00e753089671eb9e4132aab8ea08Dan Williamsenum sci_status sci_controller_terminate_request( 499d9dcb4ba791de2a06b19ac47cd61601cf3d4e208Dan Williams struct isci_host *ihost, 50078a6f06e0e82125787d7aa308fe28c2c8381540cDan Williams struct isci_remote_device *idev, 5015076a1a97e2fa61c847a5fdd4b1991faf7716da6Dan Williams struct isci_request *ireq); 502cc9203bf381a465cd115762b9cf7c9a313c874bcDan Williams 50389a7301f21fb00e753089671eb9e4132aab8ea08Dan Williamsenum sci_status sci_controller_complete_io( 504d9dcb4ba791de2a06b19ac47cd61601cf3d4e208Dan Williams struct isci_host *ihost, 50578a6f06e0e82125787d7aa308fe28c2c8381540cDan Williams struct isci_remote_device *idev, 5065076a1a97e2fa61c847a5fdd4b1991faf7716da6Dan Williams struct isci_request *ireq); 507cc9203bf381a465cd115762b9cf7c9a313c874bcDan Williams 50889a7301f21fb00e753089671eb9e4132aab8ea08Dan Williamsvoid sci_port_configuration_agent_construct( 50989a7301f21fb00e753089671eb9e4132aab8ea08Dan Williams struct sci_port_configuration_agent *port_agent); 510e2f8db509fdd354bb7a68c86515e9d2d8909ccc9Dan Williams 51189a7301f21fb00e753089671eb9e4132aab8ea08Dan Williamsenum sci_status sci_port_configuration_agent_initialize( 512d9dcb4ba791de2a06b19ac47cd61601cf3d4e208Dan Williams struct isci_host *ihost, 51389a7301f21fb00e753089671eb9e4132aab8ea08Dan Williams struct sci_port_configuration_agent *port_agent); 514ad4f4c1de80abdda5d55315289505598aa78e355Dan Williams 515ad4f4c1de80abdda5d55315289505598aa78e355Dan Williamsint isci_gpio_write(struct sas_ha_struct *, u8 reg_type, u8 reg_index, 516ad4f4c1de80abdda5d55315289505598aa78e355Dan Williams u8 reg_count, u8 *write_data); 517cc9203bf381a465cd115762b9cf7c9a313c874bcDan Williams#endif 518