sys/dev/isci/isci_sysctl.c

   1 /*-
   2  * SPDX-License-Identifier: BSD-2-Clause
   3  *
   4  * BSD LICENSE
   5  *
   6  * Copyright(c) 2008 - 2011 Intel Corporation. All rights reserved.
   7  * All rights reserved.
   8  *
   9  * Redistribution and use in source and binary forms, with or without
  10  * modification, are permitted provided that the following conditions
  11  * are met:
  12  *
  13  *   * Redistributions of source code must retain the above copyright
  14  *     notice, this list of conditions and the following disclaimer.
  15  *   * Redistributions in binary form must reproduce the above copyright
  16  *     notice, this list of conditions and the following disclaimer in
  17  *     the documentation and/or other materials provided with the
  18  *     distribution.
  19  *
  20  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
  21  * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
  22  * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
  23  * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
  24  * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
  25  * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
  26  * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
  27  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
  28  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  29  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
  30  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  31  */
  32
  33 #include <sys/cdefs.h>
  34 __FBSDID("$FreeBSD$");
  35
  36 #include <dev/isci/isci.h>
  37
  38 #include <sys/sysctl.h>
  39
  40 #include <dev/isci/scil/scif_controller.h>
  41 #include <dev/isci/scil/scic_phy.h>
  42
  43 static int
  44 isci_sysctl_coalesce_timeout(SYSCTL_HANDLER_ARGS)
  45 {
  46         struct isci_softc *isci = (struct isci_softc *)arg1;
  47         int error = sysctl_handle_int(oidp, &isci->coalesce_timeout, 0, req);
  48         int i;
  49
  50         if (error)
  51                 return (error);
  52
  53         for (i = 0; i < isci->controller_count; i++)
  54                 scif_controller_set_interrupt_coalescence(
  55                     isci->controllers[i].scif_controller_handle,
  56                     isci->coalesce_number, isci->coalesce_timeout);
  57
  58         return (0);
  59 }
  60
  61 static int
  62 isci_sysctl_coalesce_number(SYSCTL_HANDLER_ARGS)
  63 {
  64         struct isci_softc *isci = (struct isci_softc *)arg1;
  65         int error = sysctl_handle_int(oidp, &isci->coalesce_number, 0, req);
  66         int i;
  67
  68         if (error)
  69                 return (error);
  70
  71         for (i = 0; i < isci->controller_count; i++)
  72                 scif_controller_set_interrupt_coalescence(
  73                     isci->controllers[i].scif_controller_handle,
  74                     isci->coalesce_number, isci->coalesce_timeout);
  75
  76         return (0);
  77 }
  78
  79 static void
  80 isci_sysctl_reset_remote_devices(struct ISCI_CONTROLLER *controller,
  81     uint32_t remote_devices_to_be_reset)
  82 {
  83         uint32_t i = 0;
  84
  85         while (remote_devices_to_be_reset != 0) {
  86                 if (remote_devices_to_be_reset & 0x1) {
  87                         struct ISCI_REMOTE_DEVICE *remote_device =
  88                                 controller->remote_device[i];
  89
  90                         if (remote_device != NULL) {
  91                                 mtx_lock(&controller->lock);
  92                                 isci_remote_device_reset(remote_device, NULL);
  93                                 mtx_unlock(&controller->lock);
  94                         }
  95                 }
  96                 remote_devices_to_be_reset >>= 1;
  97                 i++;
  98         }
  99 }
 100
 101 static int
 102 isci_sysctl_reset_remote_device_on_controller0(SYSCTL_HANDLER_ARGS)
 103 {
 104         struct isci_softc *isci = (struct isci_softc *)arg1;
 105         uint32_t remote_devices_to_be_reset = 0;
 106         struct ISCI_CONTROLLER *controller = &isci->controllers[0];
 107         int error = sysctl_handle_int(oidp, &remote_devices_to_be_reset, 0, req);
 108
 109         if (error || remote_devices_to_be_reset == 0)
 110                 return (error);
 111
 112         isci_sysctl_reset_remote_devices(controller, remote_devices_to_be_reset);
 113
 114         return (0);
 115 }
 116
 117 static int
 118 isci_sysctl_reset_remote_device_on_controller1(SYSCTL_HANDLER_ARGS)
 119 {
 120         struct isci_softc *isci = (struct isci_softc *)arg1;
 121         uint32_t remote_devices_to_be_reset = 0;
 122         struct ISCI_CONTROLLER *controller = &isci->controllers[1];
 123         int error =
 124             sysctl_handle_int(oidp, &remote_devices_to_be_reset, 0, req);
 125
 126         if (error || remote_devices_to_be_reset == 0)
 127                 return (error);
 128
 129         isci_sysctl_reset_remote_devices(controller,
 130             remote_devices_to_be_reset);
 131
 132         return (0);
 133 }
 134
 135 static void
 136 isci_sysctl_stop(struct ISCI_CONTROLLER *controller, uint32_t phy_to_be_stopped)
 137 {
 138         SCI_PHY_HANDLE_T phy_handle = NULL;
 139
 140         scic_controller_get_phy_handle(
 141             scif_controller_get_scic_handle(controller->scif_controller_handle),
 142             phy_to_be_stopped, &phy_handle);
 143
 144         scic_phy_stop(phy_handle);
 145 }
 146
 147 static int
 148 isci_sysctl_stop_phy(SYSCTL_HANDLER_ARGS)
 149 {
 150         struct isci_softc *isci = (struct isci_softc *)arg1;
 151         uint32_t phy_to_be_stopped = 0xff;
 152         uint32_t controller_index, phy_index;
 153         int error = sysctl_handle_int(oidp, &phy_to_be_stopped, 0, req);
 154
 155         controller_index = phy_to_be_stopped / SCI_MAX_PHYS;
 156         phy_index = phy_to_be_stopped % SCI_MAX_PHYS;
 157
 158         if(error || controller_index >= isci->controller_count)
 159                 return (error);
 160
 161         isci_sysctl_stop(&isci->controllers[controller_index], phy_index);
 162
 163         return (0);
 164 }
 165
 166 static void
 167 isci_sysctl_start(struct ISCI_CONTROLLER *controller,
 168     uint32_t phy_to_be_started)
 169 {
 170         SCI_PHY_HANDLE_T phy_handle = NULL;
 171
 172         scic_controller_get_phy_handle(
 173             scif_controller_get_scic_handle(controller->scif_controller_handle),
 174             phy_to_be_started, &phy_handle);
 175
 176         scic_phy_start(phy_handle);
 177 }
 178
 179 static int
 180 isci_sysctl_start_phy(SYSCTL_HANDLER_ARGS)
 181 {
 182         struct isci_softc *isci = (struct isci_softc *)arg1;
 183         uint32_t phy_to_be_started = 0xff;
 184         uint32_t controller_index, phy_index;
 185         int error = sysctl_handle_int(oidp, &phy_to_be_started, 0, req);
 186
 187         controller_index = phy_to_be_started / SCI_MAX_PHYS;
 188         phy_index = phy_to_be_started % SCI_MAX_PHYS;
 189
 190         if(error || controller_index >= isci->controller_count)
 191                 return error;
 192
 193         isci_sysctl_start(&isci->controllers[controller_index], phy_index);
 194
 195         return 0;
 196 }
 197
 198 static int
 199 isci_sysctl_log_frozen_lun_masks(SYSCTL_HANDLER_ARGS)
 200 {
 201         struct isci_softc       *isci = (struct isci_softc *)arg1;
 202         struct ISCI_REMOTE_DEVICE *device;
 203         int32_t                 log_frozen_devices = 0;
 204         int                     error, i, j;
 205
 206         error = sysctl_handle_int(oidp, &log_frozen_devices, 0, req);
 207
 208         if (error || log_frozen_devices == 0)
 209                 return (error);
 210
 211         for (i = 0; i < isci->controller_count; i++) {
 212                 for (j = 0; j < SCI_MAX_REMOTE_DEVICES; j++) {
 213                         device = isci->controllers[i].remote_device[j];
 214
 215                         if (device == NULL)
 216                                 continue;
 217
 218                         device_printf(isci->device,
 219                             "controller %d device %3d frozen_lun_mask 0x%02x\n",
 220                             i, j, device->frozen_lun_mask);
 221                 }
 222         }
 223
 224         return (0);
 225 }
 226
 227 static int
 228 isci_sysctl_fail_on_task_timeout(SYSCTL_HANDLER_ARGS)
 229 {
 230         struct isci_softc       *isci = (struct isci_softc *)arg1;
 231         int32_t                 fail_on_timeout;
 232         int                     error, i;
 233
 234         fail_on_timeout = isci->controllers[0].fail_on_task_timeout;
 235         error = sysctl_handle_int(oidp, &fail_on_timeout, 0, req);
 236
 237         if (error || req->newptr == NULL)
 238                 return (error);
 239
 240         for (i = 0; i < isci->controller_count; i++)
 241                 isci->controllers[i].fail_on_task_timeout = fail_on_timeout;
 242
 243         return (0);
 244 }
 245
 246 void isci_sysctl_initialize(struct isci_softc *isci)
 247 {
 248         struct sysctl_ctx_list *sysctl_ctx = device_get_sysctl_ctx(isci->device);
 249         struct sysctl_oid *sysctl_tree = device_get_sysctl_tree(isci->device);
 250
 251         SYSCTL_ADD_PROC(sysctl_ctx, SYSCTL_CHILDREN(sysctl_tree), OID_AUTO,
 252             "coalesce_timeout", CTLTYPE_UINT | CTLFLAG_RW | CTLFLAG_NEEDGIANT,
 253             isci, 0, isci_sysctl_coalesce_timeout, "IU",
 254             "Interrupt coalescing timeout (in microseconds)");
 255
 256         SYSCTL_ADD_PROC(sysctl_ctx, SYSCTL_CHILDREN(sysctl_tree), OID_AUTO,
 257             "coalesce_number", CTLTYPE_UINT | CTLFLAG_RW | CTLFLAG_NEEDGIANT,
 258             isci, 0, isci_sysctl_coalesce_number, "IU",
 259             "Interrupt coalescing number");
 260
 261         SYSCTL_ADD_PROC(sysctl_ctx, SYSCTL_CHILDREN(sysctl_tree), OID_AUTO,
 262             "reset_remote_device_on_controller0",
 263             CTLTYPE_UINT | CTLFLAG_RW | CTLFLAG_NEEDGIANT, isci, 0,
 264             isci_sysctl_reset_remote_device_on_controller0, "IU",
 265             "Reset remote device on controller 0");
 266
 267         SYSCTL_ADD_PROC(sysctl_ctx, SYSCTL_CHILDREN(sysctl_tree), OID_AUTO,
 268             "reset_remote_device_on_controller1",
 269             CTLTYPE_UINT | CTLFLAG_RW | CTLFLAG_NEEDGIANT,
 270             isci, 0, isci_sysctl_reset_remote_device_on_controller1, "IU",
 271             "Reset remote device on controller 1");
 272
 273         SYSCTL_ADD_PROC(sysctl_ctx, SYSCTL_CHILDREN(sysctl_tree), OID_AUTO,
 274             "stop_phy", CTLTYPE_UINT | CTLFLAG_RW | CTLFLAG_NEEDGIANT, isci,
 275             0, isci_sysctl_stop_phy, "IU", "Stop PHY on a controller");
 276
 277         SYSCTL_ADD_PROC(sysctl_ctx, SYSCTL_CHILDREN(sysctl_tree), OID_AUTO,
 278             "start_phy", CTLTYPE_UINT | CTLFLAG_RW | CTLFLAG_NEEDGIANT, isci,
 279             0, isci_sysctl_start_phy, "IU", "Start PHY on a controller");
 280
 281         SYSCTL_ADD_PROC(sysctl_ctx, SYSCTL_CHILDREN(sysctl_tree), OID_AUTO,
 282             "log_frozen_lun_masks",
 283             CTLTYPE_UINT | CTLFLAG_RW | CTLFLAG_NEEDGIANT, isci, 0,
 284             isci_sysctl_log_frozen_lun_masks, "IU",
 285             "Log frozen lun masks to kernel log");
 286
 287         SYSCTL_ADD_PROC(sysctl_ctx, SYSCTL_CHILDREN(sysctl_tree), OID_AUTO,
 288             "fail_on_task_timeout",
 289             CTLTYPE_UINT | CTLFLAG_RW | CTLFLAG_NEEDGIANT, isci, 0,
 290             isci_sysctl_fail_on_task_timeout, "IU",
 291             "Fail a command that has encountered a task management timeout");
 292 }
 293