Bryan O'Sullivan | e28c00a | 2006-03-29 15:23:37 -0800 | [diff] [blame] | 1 | /* |
| 2 | * Copyright (c) 2005, 2006 PathScale, Inc. All rights reserved. |
| 3 | * |
| 4 | * This software is available to you under a choice of one of two |
| 5 | * licenses. You may choose to be licensed under the terms of the GNU |
| 6 | * General Public License (GPL) Version 2, available from the file |
| 7 | * COPYING in the main directory of this source tree, or the |
| 8 | * OpenIB.org BSD license below: |
| 9 | * |
| 10 | * Redistribution and use in source and binary forms, with or |
| 11 | * without modification, are permitted provided that the following |
| 12 | * conditions are met: |
| 13 | * |
| 14 | * - Redistributions of source code must retain the above |
| 15 | * copyright notice, this list of conditions and the following |
| 16 | * disclaimer. |
| 17 | * |
| 18 | * - Redistributions in binary form must reproduce the above |
| 19 | * copyright notice, this list of conditions and the following |
| 20 | * disclaimer in the documentation and/or other materials |
| 21 | * provided with the distribution. |
| 22 | * |
| 23 | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, |
| 24 | * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF |
| 25 | * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND |
| 26 | * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS |
| 27 | * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN |
| 28 | * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN |
| 29 | * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE |
| 30 | * SOFTWARE. |
| 31 | */ |
| 32 | |
| 33 | #include <rdma/ib_smi.h> |
| 34 | |
| 35 | #include "ipath_kernel.h" |
| 36 | #include "ipath_verbs.h" |
| 37 | #include "ips_common.h" |
| 38 | |
| 39 | #define IB_SMP_UNSUP_VERSION __constant_htons(0x0004) |
| 40 | #define IB_SMP_UNSUP_METHOD __constant_htons(0x0008) |
| 41 | #define IB_SMP_UNSUP_METH_ATTR __constant_htons(0x000C) |
| 42 | #define IB_SMP_INVALID_FIELD __constant_htons(0x001C) |
| 43 | |
| 44 | static int reply(struct ib_smp *smp) |
| 45 | { |
| 46 | /* |
| 47 | * The verbs framework will handle the directed/LID route |
| 48 | * packet changes. |
| 49 | */ |
| 50 | smp->method = IB_MGMT_METHOD_GET_RESP; |
| 51 | if (smp->mgmt_class == IB_MGMT_CLASS_SUBN_DIRECTED_ROUTE) |
| 52 | smp->status |= IB_SMP_DIRECTION; |
| 53 | return IB_MAD_RESULT_SUCCESS | IB_MAD_RESULT_REPLY; |
| 54 | } |
| 55 | |
| 56 | static int recv_subn_get_nodedescription(struct ib_smp *smp, |
| 57 | struct ib_device *ibdev) |
| 58 | { |
| 59 | if (smp->attr_mod) |
| 60 | smp->status |= IB_SMP_INVALID_FIELD; |
| 61 | |
| 62 | strncpy(smp->data, ibdev->node_desc, sizeof(smp->data)); |
| 63 | |
| 64 | return reply(smp); |
| 65 | } |
| 66 | |
| 67 | struct nodeinfo { |
| 68 | u8 base_version; |
| 69 | u8 class_version; |
| 70 | u8 node_type; |
| 71 | u8 num_ports; |
| 72 | __be64 sys_guid; |
| 73 | __be64 node_guid; |
| 74 | __be64 port_guid; |
| 75 | __be16 partition_cap; |
| 76 | __be16 device_id; |
| 77 | __be32 revision; |
| 78 | u8 local_port_num; |
| 79 | u8 vendor_id[3]; |
| 80 | } __attribute__ ((packed)); |
| 81 | |
| 82 | static int recv_subn_get_nodeinfo(struct ib_smp *smp, |
| 83 | struct ib_device *ibdev, u8 port) |
| 84 | { |
| 85 | struct nodeinfo *nip = (struct nodeinfo *)&smp->data; |
| 86 | struct ipath_devdata *dd = to_idev(ibdev)->dd; |
| 87 | u32 vendor, boardid, majrev, minrev; |
| 88 | |
| 89 | if (smp->attr_mod) |
| 90 | smp->status |= IB_SMP_INVALID_FIELD; |
| 91 | |
| 92 | nip->base_version = 1; |
| 93 | nip->class_version = 1; |
| 94 | nip->node_type = 1; /* channel adapter */ |
| 95 | /* |
| 96 | * XXX The num_ports value will need a layer function to get |
| 97 | * the value if we ever have more than one IB port on a chip. |
| 98 | * We will also need to get the GUID for the port. |
| 99 | */ |
| 100 | nip->num_ports = ibdev->phys_port_cnt; |
| 101 | /* This is already in network order */ |
| 102 | nip->sys_guid = to_idev(ibdev)->sys_image_guid; |
| 103 | nip->node_guid = ipath_layer_get_guid(dd); |
| 104 | nip->port_guid = nip->sys_guid; |
| 105 | nip->partition_cap = cpu_to_be16(ipath_layer_get_npkeys(dd)); |
| 106 | nip->device_id = cpu_to_be16(ipath_layer_get_deviceid(dd)); |
| 107 | ipath_layer_query_device(dd, &vendor, &boardid, &majrev, &minrev); |
| 108 | nip->revision = cpu_to_be32((majrev << 16) | minrev); |
| 109 | nip->local_port_num = port; |
| 110 | nip->vendor_id[0] = 0; |
| 111 | nip->vendor_id[1] = vendor >> 8; |
| 112 | nip->vendor_id[2] = vendor; |
| 113 | |
| 114 | return reply(smp); |
| 115 | } |
| 116 | |
| 117 | static int recv_subn_get_guidinfo(struct ib_smp *smp, |
| 118 | struct ib_device *ibdev) |
| 119 | { |
| 120 | u32 startgx = 8 * be32_to_cpu(smp->attr_mod); |
| 121 | __be64 *p = (__be64 *) smp->data; |
| 122 | |
| 123 | /* 32 blocks of 8 64-bit GUIDs per block */ |
| 124 | |
| 125 | memset(smp->data, 0, sizeof(smp->data)); |
| 126 | |
| 127 | /* |
| 128 | * We only support one GUID for now. If this changes, the |
| 129 | * portinfo.guid_cap field needs to be updated too. |
| 130 | */ |
| 131 | if (startgx == 0) |
| 132 | /* The first is a copy of the read-only HW GUID. */ |
| 133 | *p = ipath_layer_get_guid(to_idev(ibdev)->dd); |
| 134 | else |
| 135 | smp->status |= IB_SMP_INVALID_FIELD; |
| 136 | |
| 137 | return reply(smp); |
| 138 | } |
| 139 | |
| 140 | struct port_info { |
| 141 | __be64 mkey; |
| 142 | __be64 gid_prefix; |
| 143 | __be16 lid; |
| 144 | __be16 sm_lid; |
| 145 | __be32 cap_mask; |
| 146 | __be16 diag_code; |
| 147 | __be16 mkey_lease_period; |
| 148 | u8 local_port_num; |
| 149 | u8 link_width_enabled; |
| 150 | u8 link_width_supported; |
| 151 | u8 link_width_active; |
| 152 | u8 linkspeed_portstate; /* 4 bits, 4 bits */ |
| 153 | u8 portphysstate_linkdown; /* 4 bits, 4 bits */ |
| 154 | u8 mkeyprot_resv_lmc; /* 2 bits, 3, 3 */ |
| 155 | u8 linkspeedactive_enabled; /* 4 bits, 4 bits */ |
| 156 | u8 neighbormtu_mastersmsl; /* 4 bits, 4 bits */ |
| 157 | u8 vlcap_inittype; /* 4 bits, 4 bits */ |
| 158 | u8 vl_high_limit; |
| 159 | u8 vl_arb_high_cap; |
| 160 | u8 vl_arb_low_cap; |
| 161 | u8 inittypereply_mtucap; /* 4 bits, 4 bits */ |
| 162 | u8 vlstallcnt_hoqlife; /* 3 bits, 5 bits */ |
| 163 | u8 operationalvl_pei_peo_fpi_fpo; /* 4 bits, 1, 1, 1, 1 */ |
| 164 | __be16 mkey_violations; |
| 165 | __be16 pkey_violations; |
| 166 | __be16 qkey_violations; |
| 167 | u8 guid_cap; |
| 168 | u8 clientrereg_resv_subnetto; /* 1 bit, 2 bits, 5 */ |
| 169 | u8 resv_resptimevalue; /* 3 bits, 5 bits */ |
| 170 | u8 localphyerrors_overrunerrors; /* 4 bits, 4 bits */ |
| 171 | __be16 max_credit_hint; |
| 172 | u8 resv; |
| 173 | u8 link_roundtrip_latency[3]; |
| 174 | } __attribute__ ((packed)); |
| 175 | |
| 176 | static int recv_subn_get_portinfo(struct ib_smp *smp, |
| 177 | struct ib_device *ibdev, u8 port) |
| 178 | { |
| 179 | struct ipath_ibdev *dev; |
| 180 | struct port_info *pip = (struct port_info *)smp->data; |
| 181 | u16 lid; |
| 182 | u8 ibcstat; |
| 183 | u8 mtu; |
| 184 | int ret; |
| 185 | |
| 186 | if (be32_to_cpu(smp->attr_mod) > ibdev->phys_port_cnt) { |
| 187 | smp->status |= IB_SMP_INVALID_FIELD; |
| 188 | ret = reply(smp); |
| 189 | goto bail; |
| 190 | } |
| 191 | |
| 192 | dev = to_idev(ibdev); |
| 193 | |
| 194 | /* Clear all fields. Only set the non-zero fields. */ |
| 195 | memset(smp->data, 0, sizeof(smp->data)); |
| 196 | |
| 197 | /* Only return the mkey if the protection field allows it. */ |
| 198 | if (smp->method == IB_MGMT_METHOD_SET || dev->mkey == smp->mkey || |
| 199 | (dev->mkeyprot_resv_lmc >> 6) == 0) |
| 200 | pip->mkey = dev->mkey; |
| 201 | pip->gid_prefix = dev->gid_prefix; |
| 202 | lid = ipath_layer_get_lid(dev->dd); |
| 203 | pip->lid = lid ? cpu_to_be16(lid) : IB_LID_PERMISSIVE; |
| 204 | pip->sm_lid = cpu_to_be16(dev->sm_lid); |
| 205 | pip->cap_mask = cpu_to_be32(dev->port_cap_flags); |
| 206 | /* pip->diag_code; */ |
| 207 | pip->mkey_lease_period = cpu_to_be16(dev->mkey_lease_period); |
| 208 | pip->local_port_num = port; |
| 209 | pip->link_width_enabled = dev->link_width_enabled; |
| 210 | pip->link_width_supported = 3; /* 1x or 4x */ |
| 211 | pip->link_width_active = 2; /* 4x */ |
| 212 | pip->linkspeed_portstate = 0x10; /* 2.5Gbps */ |
| 213 | ibcstat = ipath_layer_get_lastibcstat(dev->dd); |
| 214 | pip->linkspeed_portstate |= ((ibcstat >> 4) & 0x3) + 1; |
| 215 | pip->portphysstate_linkdown = |
| 216 | (ipath_cvt_physportstate[ibcstat & 0xf] << 4) | |
| 217 | (ipath_layer_get_linkdowndefaultstate(dev->dd) ? 1 : 2); |
| 218 | pip->mkeyprot_resv_lmc = dev->mkeyprot_resv_lmc; |
| 219 | pip->linkspeedactive_enabled = 0x11; /* 2.5Gbps, 2.5Gbps */ |
| 220 | switch (ipath_layer_get_ibmtu(dev->dd)) { |
| 221 | case 4096: |
| 222 | mtu = IB_MTU_4096; |
| 223 | break; |
| 224 | case 2048: |
| 225 | mtu = IB_MTU_2048; |
| 226 | break; |
| 227 | case 1024: |
| 228 | mtu = IB_MTU_1024; |
| 229 | break; |
| 230 | case 512: |
| 231 | mtu = IB_MTU_512; |
| 232 | break; |
| 233 | case 256: |
| 234 | mtu = IB_MTU_256; |
| 235 | break; |
| 236 | default: /* oops, something is wrong */ |
| 237 | mtu = IB_MTU_2048; |
| 238 | break; |
| 239 | } |
| 240 | pip->neighbormtu_mastersmsl = (mtu << 4) | dev->sm_sl; |
| 241 | pip->vlcap_inittype = 0x10; /* VLCap = VL0, InitType = 0 */ |
| 242 | pip->vl_high_limit = dev->vl_high_limit; |
| 243 | /* pip->vl_arb_high_cap; // only one VL */ |
| 244 | /* pip->vl_arb_low_cap; // only one VL */ |
| 245 | /* InitTypeReply = 0 */ |
| 246 | pip->inittypereply_mtucap = IB_MTU_4096; |
| 247 | // HCAs ignore VLStallCount and HOQLife |
| 248 | /* pip->vlstallcnt_hoqlife; */ |
| 249 | pip->operationalvl_pei_peo_fpi_fpo = 0x10; /* OVLs = 1 */ |
| 250 | pip->mkey_violations = cpu_to_be16(dev->mkey_violations); |
| 251 | /* P_KeyViolations are counted by hardware. */ |
| 252 | pip->pkey_violations = |
| 253 | cpu_to_be16((ipath_layer_get_cr_errpkey(dev->dd) - |
| 254 | dev->n_pkey_violations) & 0xFFFF); |
| 255 | pip->qkey_violations = cpu_to_be16(dev->qkey_violations); |
| 256 | /* Only the hardware GUID is supported for now */ |
| 257 | pip->guid_cap = 1; |
| 258 | pip->clientrereg_resv_subnetto = dev->subnet_timeout; |
| 259 | /* 32.768 usec. response time (guessing) */ |
| 260 | pip->resv_resptimevalue = 3; |
| 261 | pip->localphyerrors_overrunerrors = |
| 262 | (ipath_layer_get_phyerrthreshold(dev->dd) << 4) | |
| 263 | ipath_layer_get_overrunthreshold(dev->dd); |
| 264 | /* pip->max_credit_hint; */ |
| 265 | /* pip->link_roundtrip_latency[3]; */ |
| 266 | |
| 267 | ret = reply(smp); |
| 268 | |
| 269 | bail: |
| 270 | return ret; |
| 271 | } |
| 272 | |
| 273 | static int recv_subn_get_pkeytable(struct ib_smp *smp, |
| 274 | struct ib_device *ibdev) |
| 275 | { |
| 276 | u32 startpx = 32 * (be32_to_cpu(smp->attr_mod) & 0xffff); |
| 277 | u16 *p = (u16 *) smp->data; |
| 278 | __be16 *q = (__be16 *) smp->data; |
| 279 | |
| 280 | /* 64 blocks of 32 16-bit P_Key entries */ |
| 281 | |
| 282 | memset(smp->data, 0, sizeof(smp->data)); |
| 283 | if (startpx == 0) { |
| 284 | struct ipath_ibdev *dev = to_idev(ibdev); |
| 285 | unsigned i, n = ipath_layer_get_npkeys(dev->dd); |
| 286 | |
| 287 | ipath_layer_get_pkeys(dev->dd, p); |
| 288 | |
| 289 | for (i = 0; i < n; i++) |
| 290 | q[i] = cpu_to_be16(p[i]); |
| 291 | } else |
| 292 | smp->status |= IB_SMP_INVALID_FIELD; |
| 293 | |
| 294 | return reply(smp); |
| 295 | } |
| 296 | |
| 297 | static int recv_subn_set_guidinfo(struct ib_smp *smp, |
| 298 | struct ib_device *ibdev) |
| 299 | { |
| 300 | /* The only GUID we support is the first read-only entry. */ |
| 301 | return recv_subn_get_guidinfo(smp, ibdev); |
| 302 | } |
| 303 | |
| 304 | /** |
| 305 | * recv_subn_set_portinfo - set port information |
| 306 | * @smp: the incoming SM packet |
| 307 | * @ibdev: the infiniband device |
| 308 | * @port: the port on the device |
| 309 | * |
| 310 | * Set Portinfo (see ch. 14.2.5.6). |
| 311 | */ |
| 312 | static int recv_subn_set_portinfo(struct ib_smp *smp, |
| 313 | struct ib_device *ibdev, u8 port) |
| 314 | { |
| 315 | struct port_info *pip = (struct port_info *)smp->data; |
| 316 | struct ib_event event; |
| 317 | struct ipath_ibdev *dev; |
| 318 | u32 flags; |
| 319 | char clientrereg = 0; |
| 320 | u16 lid, smlid; |
| 321 | u8 lwe; |
| 322 | u8 lse; |
| 323 | u8 state; |
| 324 | u16 lstate; |
| 325 | u32 mtu; |
| 326 | int ret; |
| 327 | |
| 328 | if (be32_to_cpu(smp->attr_mod) > ibdev->phys_port_cnt) |
| 329 | goto err; |
| 330 | |
| 331 | dev = to_idev(ibdev); |
| 332 | event.device = ibdev; |
| 333 | event.element.port_num = port; |
| 334 | |
| 335 | dev->mkey = pip->mkey; |
| 336 | dev->gid_prefix = pip->gid_prefix; |
| 337 | dev->mkey_lease_period = be16_to_cpu(pip->mkey_lease_period); |
| 338 | |
| 339 | lid = be16_to_cpu(pip->lid); |
| 340 | if (lid != ipath_layer_get_lid(dev->dd)) { |
| 341 | /* Must be a valid unicast LID address. */ |
| 342 | if (lid == 0 || lid >= IPS_MULTICAST_LID_BASE) |
| 343 | goto err; |
| 344 | ipath_set_sps_lid(dev->dd, lid, pip->mkeyprot_resv_lmc & 7); |
| 345 | event.event = IB_EVENT_LID_CHANGE; |
| 346 | ib_dispatch_event(&event); |
| 347 | } |
| 348 | |
| 349 | smlid = be16_to_cpu(pip->sm_lid); |
| 350 | if (smlid != dev->sm_lid) { |
| 351 | /* Must be a valid unicast LID address. */ |
| 352 | if (smlid == 0 || smlid >= IPS_MULTICAST_LID_BASE) |
| 353 | goto err; |
| 354 | dev->sm_lid = smlid; |
| 355 | event.event = IB_EVENT_SM_CHANGE; |
| 356 | ib_dispatch_event(&event); |
| 357 | } |
| 358 | |
| 359 | /* Only 4x supported but allow 1x or 4x to be set (see 14.2.6.6). */ |
| 360 | lwe = pip->link_width_enabled; |
| 361 | if ((lwe >= 4 && lwe <= 8) || (lwe >= 0xC && lwe <= 0xFE)) |
| 362 | goto err; |
| 363 | if (lwe == 0xFF) |
| 364 | dev->link_width_enabled = 3; /* 1x or 4x */ |
| 365 | else if (lwe) |
| 366 | dev->link_width_enabled = lwe; |
| 367 | |
| 368 | /* Only 2.5 Gbs supported. */ |
| 369 | lse = pip->linkspeedactive_enabled & 0xF; |
| 370 | if (lse >= 2 && lse <= 0xE) |
| 371 | goto err; |
| 372 | |
| 373 | /* Set link down default state. */ |
| 374 | switch (pip->portphysstate_linkdown & 0xF) { |
| 375 | case 0: /* NOP */ |
| 376 | break; |
| 377 | case 1: /* SLEEP */ |
| 378 | if (ipath_layer_set_linkdowndefaultstate(dev->dd, 1)) |
| 379 | goto err; |
| 380 | break; |
| 381 | case 2: /* POLL */ |
| 382 | if (ipath_layer_set_linkdowndefaultstate(dev->dd, 0)) |
| 383 | goto err; |
| 384 | break; |
| 385 | default: |
| 386 | goto err; |
| 387 | } |
| 388 | |
| 389 | dev->mkeyprot_resv_lmc = pip->mkeyprot_resv_lmc; |
| 390 | dev->vl_high_limit = pip->vl_high_limit; |
| 391 | |
| 392 | switch ((pip->neighbormtu_mastersmsl >> 4) & 0xF) { |
| 393 | case IB_MTU_256: |
| 394 | mtu = 256; |
| 395 | break; |
| 396 | case IB_MTU_512: |
| 397 | mtu = 512; |
| 398 | break; |
| 399 | case IB_MTU_1024: |
| 400 | mtu = 1024; |
| 401 | break; |
| 402 | case IB_MTU_2048: |
| 403 | mtu = 2048; |
| 404 | break; |
| 405 | case IB_MTU_4096: |
| 406 | mtu = 4096; |
| 407 | break; |
| 408 | default: |
| 409 | /* XXX We have already partially updated our state! */ |
| 410 | goto err; |
| 411 | } |
| 412 | ipath_layer_set_mtu(dev->dd, mtu); |
| 413 | |
| 414 | dev->sm_sl = pip->neighbormtu_mastersmsl & 0xF; |
| 415 | |
| 416 | /* We only support VL0 */ |
| 417 | if (((pip->operationalvl_pei_peo_fpi_fpo >> 4) & 0xF) > 1) |
| 418 | goto err; |
| 419 | |
| 420 | if (pip->mkey_violations == 0) |
| 421 | dev->mkey_violations = 0; |
| 422 | |
| 423 | /* |
| 424 | * Hardware counter can't be reset so snapshot and subtract |
| 425 | * later. |
| 426 | */ |
| 427 | if (pip->pkey_violations == 0) |
| 428 | dev->n_pkey_violations = |
| 429 | ipath_layer_get_cr_errpkey(dev->dd); |
| 430 | |
| 431 | if (pip->qkey_violations == 0) |
| 432 | dev->qkey_violations = 0; |
| 433 | |
| 434 | if (ipath_layer_set_phyerrthreshold( |
| 435 | dev->dd, |
| 436 | (pip->localphyerrors_overrunerrors >> 4) & 0xF)) |
| 437 | goto err; |
| 438 | |
| 439 | if (ipath_layer_set_overrunthreshold( |
| 440 | dev->dd, |
| 441 | (pip->localphyerrors_overrunerrors & 0xF))) |
| 442 | goto err; |
| 443 | |
| 444 | dev->subnet_timeout = pip->clientrereg_resv_subnetto & 0x1F; |
| 445 | |
| 446 | if (pip->clientrereg_resv_subnetto & 0x80) { |
| 447 | clientrereg = 1; |
| 448 | event.event = IB_EVENT_LID_CHANGE; |
| 449 | ib_dispatch_event(&event); |
| 450 | } |
| 451 | |
| 452 | /* |
| 453 | * Do the port state change now that the other link parameters |
| 454 | * have been set. |
| 455 | * Changing the port physical state only makes sense if the link |
| 456 | * is down or is being set to down. |
| 457 | */ |
| 458 | state = pip->linkspeed_portstate & 0xF; |
| 459 | flags = ipath_layer_get_flags(dev->dd); |
| 460 | lstate = (pip->portphysstate_linkdown >> 4) & 0xF; |
| 461 | if (lstate && !(state == IB_PORT_DOWN || state == IB_PORT_NOP)) |
| 462 | goto err; |
| 463 | |
| 464 | /* |
| 465 | * Only state changes of DOWN, ARM, and ACTIVE are valid |
| 466 | * and must be in the correct state to take effect (see 7.2.6). |
| 467 | */ |
| 468 | switch (state) { |
| 469 | case IB_PORT_NOP: |
| 470 | if (lstate == 0) |
| 471 | break; |
| 472 | /* FALLTHROUGH */ |
| 473 | case IB_PORT_DOWN: |
| 474 | if (lstate == 0) |
| 475 | if (ipath_layer_get_linkdowndefaultstate(dev->dd)) |
| 476 | lstate = IPATH_IB_LINKDOWN_SLEEP; |
| 477 | else |
| 478 | lstate = IPATH_IB_LINKDOWN; |
| 479 | else if (lstate == 1) |
| 480 | lstate = IPATH_IB_LINKDOWN_SLEEP; |
| 481 | else if (lstate == 2) |
| 482 | lstate = IPATH_IB_LINKDOWN; |
| 483 | else if (lstate == 3) |
| 484 | lstate = IPATH_IB_LINKDOWN_DISABLE; |
| 485 | else |
| 486 | goto err; |
| 487 | ipath_layer_set_linkstate(dev->dd, lstate); |
| 488 | if (flags & IPATH_LINKACTIVE) { |
| 489 | event.event = IB_EVENT_PORT_ERR; |
| 490 | ib_dispatch_event(&event); |
| 491 | } |
| 492 | break; |
| 493 | case IB_PORT_ARMED: |
| 494 | if (!(flags & (IPATH_LINKINIT | IPATH_LINKACTIVE))) |
| 495 | break; |
| 496 | ipath_layer_set_linkstate(dev->dd, IPATH_IB_LINKARM); |
| 497 | if (flags & IPATH_LINKACTIVE) { |
| 498 | event.event = IB_EVENT_PORT_ERR; |
| 499 | ib_dispatch_event(&event); |
| 500 | } |
| 501 | break; |
| 502 | case IB_PORT_ACTIVE: |
| 503 | if (!(flags & IPATH_LINKARMED)) |
| 504 | break; |
| 505 | ipath_layer_set_linkstate(dev->dd, IPATH_IB_LINKACTIVE); |
| 506 | event.event = IB_EVENT_PORT_ACTIVE; |
| 507 | ib_dispatch_event(&event); |
| 508 | break; |
| 509 | default: |
| 510 | /* XXX We have already partially updated our state! */ |
| 511 | goto err; |
| 512 | } |
| 513 | |
| 514 | ret = recv_subn_get_portinfo(smp, ibdev, port); |
| 515 | |
| 516 | if (clientrereg) |
| 517 | pip->clientrereg_resv_subnetto |= 0x80; |
| 518 | |
| 519 | goto done; |
| 520 | |
| 521 | err: |
| 522 | smp->status |= IB_SMP_INVALID_FIELD; |
| 523 | ret = recv_subn_get_portinfo(smp, ibdev, port); |
| 524 | |
| 525 | done: |
| 526 | return ret; |
| 527 | } |
| 528 | |
| 529 | static int recv_subn_set_pkeytable(struct ib_smp *smp, |
| 530 | struct ib_device *ibdev) |
| 531 | { |
| 532 | u32 startpx = 32 * (be32_to_cpu(smp->attr_mod) & 0xffff); |
| 533 | __be16 *p = (__be16 *) smp->data; |
| 534 | u16 *q = (u16 *) smp->data; |
| 535 | struct ipath_ibdev *dev = to_idev(ibdev); |
| 536 | unsigned i, n = ipath_layer_get_npkeys(dev->dd); |
| 537 | |
| 538 | for (i = 0; i < n; i++) |
| 539 | q[i] = be16_to_cpu(p[i]); |
| 540 | |
| 541 | if (startpx != 0 || |
| 542 | ipath_layer_set_pkeys(dev->dd, q) != 0) |
| 543 | smp->status |= IB_SMP_INVALID_FIELD; |
| 544 | |
| 545 | return recv_subn_get_pkeytable(smp, ibdev); |
| 546 | } |
| 547 | |
| 548 | #define IB_PMA_CLASS_PORT_INFO __constant_htons(0x0001) |
| 549 | #define IB_PMA_PORT_SAMPLES_CONTROL __constant_htons(0x0010) |
| 550 | #define IB_PMA_PORT_SAMPLES_RESULT __constant_htons(0x0011) |
| 551 | #define IB_PMA_PORT_COUNTERS __constant_htons(0x0012) |
| 552 | #define IB_PMA_PORT_COUNTERS_EXT __constant_htons(0x001D) |
| 553 | #define IB_PMA_PORT_SAMPLES_RESULT_EXT __constant_htons(0x001E) |
| 554 | |
| 555 | struct ib_perf { |
| 556 | u8 base_version; |
| 557 | u8 mgmt_class; |
| 558 | u8 class_version; |
| 559 | u8 method; |
| 560 | __be16 status; |
| 561 | __be16 unused; |
| 562 | __be64 tid; |
| 563 | __be16 attr_id; |
| 564 | __be16 resv; |
| 565 | __be32 attr_mod; |
| 566 | u8 reserved[40]; |
| 567 | u8 data[192]; |
| 568 | } __attribute__ ((packed)); |
| 569 | |
| 570 | struct ib_pma_classportinfo { |
| 571 | u8 base_version; |
| 572 | u8 class_version; |
| 573 | __be16 cap_mask; |
| 574 | u8 reserved[3]; |
| 575 | u8 resp_time_value; /* only lower 5 bits */ |
| 576 | union ib_gid redirect_gid; |
| 577 | __be32 redirect_tc_sl_fl; /* 8, 4, 20 bits respectively */ |
| 578 | __be16 redirect_lid; |
| 579 | __be16 redirect_pkey; |
| 580 | __be32 redirect_qp; /* only lower 24 bits */ |
| 581 | __be32 redirect_qkey; |
| 582 | union ib_gid trap_gid; |
| 583 | __be32 trap_tc_sl_fl; /* 8, 4, 20 bits respectively */ |
| 584 | __be16 trap_lid; |
| 585 | __be16 trap_pkey; |
| 586 | __be32 trap_hl_qp; /* 8, 24 bits respectively */ |
| 587 | __be32 trap_qkey; |
| 588 | } __attribute__ ((packed)); |
| 589 | |
| 590 | struct ib_pma_portsamplescontrol { |
| 591 | u8 opcode; |
| 592 | u8 port_select; |
| 593 | u8 tick; |
| 594 | u8 counter_width; /* only lower 3 bits */ |
| 595 | __be32 counter_mask0_9; /* 2, 10 * 3, bits */ |
| 596 | __be16 counter_mask10_14; /* 1, 5 * 3, bits */ |
| 597 | u8 sample_mechanisms; |
| 598 | u8 sample_status; /* only lower 2 bits */ |
| 599 | __be64 option_mask; |
| 600 | __be64 vendor_mask; |
| 601 | __be32 sample_start; |
| 602 | __be32 sample_interval; |
| 603 | __be16 tag; |
| 604 | __be16 counter_select[15]; |
| 605 | } __attribute__ ((packed)); |
| 606 | |
| 607 | struct ib_pma_portsamplesresult { |
| 608 | __be16 tag; |
| 609 | __be16 sample_status; /* only lower 2 bits */ |
| 610 | __be32 counter[15]; |
| 611 | } __attribute__ ((packed)); |
| 612 | |
| 613 | struct ib_pma_portsamplesresult_ext { |
| 614 | __be16 tag; |
| 615 | __be16 sample_status; /* only lower 2 bits */ |
| 616 | __be32 extended_width; /* only upper 2 bits */ |
| 617 | __be64 counter[15]; |
| 618 | } __attribute__ ((packed)); |
| 619 | |
| 620 | struct ib_pma_portcounters { |
| 621 | u8 reserved; |
| 622 | u8 port_select; |
| 623 | __be16 counter_select; |
| 624 | __be16 symbol_error_counter; |
| 625 | u8 link_error_recovery_counter; |
| 626 | u8 link_downed_counter; |
| 627 | __be16 port_rcv_errors; |
| 628 | __be16 port_rcv_remphys_errors; |
| 629 | __be16 port_rcv_switch_relay_errors; |
| 630 | __be16 port_xmit_discards; |
| 631 | u8 port_xmit_constraint_errors; |
| 632 | u8 port_rcv_constraint_errors; |
| 633 | u8 reserved1; |
| 634 | u8 lli_ebor_errors; /* 4, 4, bits */ |
| 635 | __be16 reserved2; |
| 636 | __be16 vl15_dropped; |
| 637 | __be32 port_xmit_data; |
| 638 | __be32 port_rcv_data; |
| 639 | __be32 port_xmit_packets; |
| 640 | __be32 port_rcv_packets; |
| 641 | } __attribute__ ((packed)); |
| 642 | |
| 643 | #define IB_PMA_SEL_SYMBOL_ERROR __constant_htons(0x0001) |
| 644 | #define IB_PMA_SEL_LINK_ERROR_RECOVERY __constant_htons(0x0002) |
| 645 | #define IB_PMA_SEL_LINK_DOWNED __constant_htons(0x0004) |
| 646 | #define IB_PMA_SEL_PORT_RCV_ERRORS __constant_htons(0x0008) |
| 647 | #define IB_PMA_SEL_PORT_RCV_REMPHYS_ERRORS __constant_htons(0x0010) |
| 648 | #define IB_PMA_SEL_PORT_XMIT_DISCARDS __constant_htons(0x0040) |
| 649 | #define IB_PMA_SEL_PORT_XMIT_DATA __constant_htons(0x1000) |
| 650 | #define IB_PMA_SEL_PORT_RCV_DATA __constant_htons(0x2000) |
| 651 | #define IB_PMA_SEL_PORT_XMIT_PACKETS __constant_htons(0x4000) |
| 652 | #define IB_PMA_SEL_PORT_RCV_PACKETS __constant_htons(0x8000) |
| 653 | |
| 654 | struct ib_pma_portcounters_ext { |
| 655 | u8 reserved; |
| 656 | u8 port_select; |
| 657 | __be16 counter_select; |
| 658 | __be32 reserved1; |
| 659 | __be64 port_xmit_data; |
| 660 | __be64 port_rcv_data; |
| 661 | __be64 port_xmit_packets; |
| 662 | __be64 port_rcv_packets; |
| 663 | __be64 port_unicast_xmit_packets; |
| 664 | __be64 port_unicast_rcv_packets; |
| 665 | __be64 port_multicast_xmit_packets; |
| 666 | __be64 port_multicast_rcv_packets; |
| 667 | } __attribute__ ((packed)); |
| 668 | |
| 669 | #define IB_PMA_SELX_PORT_XMIT_DATA __constant_htons(0x0001) |
| 670 | #define IB_PMA_SELX_PORT_RCV_DATA __constant_htons(0x0002) |
| 671 | #define IB_PMA_SELX_PORT_XMIT_PACKETS __constant_htons(0x0004) |
| 672 | #define IB_PMA_SELX_PORT_RCV_PACKETS __constant_htons(0x0008) |
| 673 | #define IB_PMA_SELX_PORT_UNI_XMIT_PACKETS __constant_htons(0x0010) |
| 674 | #define IB_PMA_SELX_PORT_UNI_RCV_PACKETS __constant_htons(0x0020) |
| 675 | #define IB_PMA_SELX_PORT_MULTI_XMIT_PACKETS __constant_htons(0x0040) |
| 676 | #define IB_PMA_SELX_PORT_MULTI_RCV_PACKETS __constant_htons(0x0080) |
| 677 | |
| 678 | static int recv_pma_get_classportinfo(struct ib_perf *pmp) |
| 679 | { |
| 680 | struct ib_pma_classportinfo *p = |
| 681 | (struct ib_pma_classportinfo *)pmp->data; |
| 682 | |
| 683 | memset(pmp->data, 0, sizeof(pmp->data)); |
| 684 | |
| 685 | if (pmp->attr_mod != 0) |
| 686 | pmp->status |= IB_SMP_INVALID_FIELD; |
| 687 | |
| 688 | /* Indicate AllPortSelect is valid (only one port anyway) */ |
| 689 | p->cap_mask = __constant_cpu_to_be16(1 << 8); |
| 690 | p->base_version = 1; |
| 691 | p->class_version = 1; |
| 692 | /* |
| 693 | * Expected response time is 4.096 usec. * 2^18 == 1.073741824 |
| 694 | * sec. |
| 695 | */ |
| 696 | p->resp_time_value = 18; |
| 697 | |
| 698 | return reply((struct ib_smp *) pmp); |
| 699 | } |
| 700 | |
| 701 | /* |
| 702 | * The PortSamplesControl.CounterMasks field is an array of 3 bit fields |
| 703 | * which specify the N'th counter's capabilities. See ch. 16.1.3.2. |
| 704 | * We support 5 counters which only count the mandatory quantities. |
| 705 | */ |
| 706 | #define COUNTER_MASK(q, n) (q << ((9 - n) * 3)) |
| 707 | #define COUNTER_MASK0_9 \ |
| 708 | __constant_cpu_to_be32(COUNTER_MASK(1, 0) | \ |
| 709 | COUNTER_MASK(1, 1) | \ |
| 710 | COUNTER_MASK(1, 2) | \ |
| 711 | COUNTER_MASK(1, 3) | \ |
| 712 | COUNTER_MASK(1, 4)) |
| 713 | |
| 714 | static int recv_pma_get_portsamplescontrol(struct ib_perf *pmp, |
| 715 | struct ib_device *ibdev, u8 port) |
| 716 | { |
| 717 | struct ib_pma_portsamplescontrol *p = |
| 718 | (struct ib_pma_portsamplescontrol *)pmp->data; |
| 719 | struct ipath_ibdev *dev = to_idev(ibdev); |
| 720 | unsigned long flags; |
| 721 | u8 port_select = p->port_select; |
| 722 | |
| 723 | memset(pmp->data, 0, sizeof(pmp->data)); |
| 724 | |
| 725 | p->port_select = port_select; |
| 726 | if (pmp->attr_mod != 0 || |
| 727 | (port_select != port && port_select != 0xFF)) |
| 728 | pmp->status |= IB_SMP_INVALID_FIELD; |
| 729 | /* |
| 730 | * Ticks are 10x the link transfer period which for 2.5Gbs is 4 |
| 731 | * nsec. 0 == 4 nsec., 1 == 8 nsec., ..., 255 == 1020 nsec. Sample |
| 732 | * intervals are counted in ticks. Since we use Linux timers, that |
| 733 | * count in jiffies, we can't sample for less than 1000 ticks if HZ |
| 734 | * == 1000 (4000 ticks if HZ is 250). |
| 735 | */ |
| 736 | /* XXX This is WRONG. */ |
| 737 | p->tick = 250; /* 1 usec. */ |
| 738 | p->counter_width = 4; /* 32 bit counters */ |
| 739 | p->counter_mask0_9 = COUNTER_MASK0_9; |
| 740 | spin_lock_irqsave(&dev->pending_lock, flags); |
| 741 | p->sample_status = dev->pma_sample_status; |
| 742 | p->sample_start = cpu_to_be32(dev->pma_sample_start); |
| 743 | p->sample_interval = cpu_to_be32(dev->pma_sample_interval); |
| 744 | p->tag = cpu_to_be16(dev->pma_tag); |
| 745 | p->counter_select[0] = dev->pma_counter_select[0]; |
| 746 | p->counter_select[1] = dev->pma_counter_select[1]; |
| 747 | p->counter_select[2] = dev->pma_counter_select[2]; |
| 748 | p->counter_select[3] = dev->pma_counter_select[3]; |
| 749 | p->counter_select[4] = dev->pma_counter_select[4]; |
| 750 | spin_unlock_irqrestore(&dev->pending_lock, flags); |
| 751 | |
| 752 | return reply((struct ib_smp *) pmp); |
| 753 | } |
| 754 | |
| 755 | static int recv_pma_set_portsamplescontrol(struct ib_perf *pmp, |
| 756 | struct ib_device *ibdev, u8 port) |
| 757 | { |
| 758 | struct ib_pma_portsamplescontrol *p = |
| 759 | (struct ib_pma_portsamplescontrol *)pmp->data; |
| 760 | struct ipath_ibdev *dev = to_idev(ibdev); |
| 761 | unsigned long flags; |
| 762 | u32 start; |
| 763 | int ret; |
| 764 | |
| 765 | if (pmp->attr_mod != 0 || |
| 766 | (p->port_select != port && p->port_select != 0xFF)) { |
| 767 | pmp->status |= IB_SMP_INVALID_FIELD; |
| 768 | ret = reply((struct ib_smp *) pmp); |
| 769 | goto bail; |
| 770 | } |
| 771 | |
| 772 | start = be32_to_cpu(p->sample_start); |
| 773 | if (start != 0) { |
| 774 | spin_lock_irqsave(&dev->pending_lock, flags); |
| 775 | if (dev->pma_sample_status == IB_PMA_SAMPLE_STATUS_DONE) { |
| 776 | dev->pma_sample_status = |
| 777 | IB_PMA_SAMPLE_STATUS_STARTED; |
| 778 | dev->pma_sample_start = start; |
| 779 | dev->pma_sample_interval = |
| 780 | be32_to_cpu(p->sample_interval); |
| 781 | dev->pma_tag = be16_to_cpu(p->tag); |
| 782 | if (p->counter_select[0]) |
| 783 | dev->pma_counter_select[0] = |
| 784 | p->counter_select[0]; |
| 785 | if (p->counter_select[1]) |
| 786 | dev->pma_counter_select[1] = |
| 787 | p->counter_select[1]; |
| 788 | if (p->counter_select[2]) |
| 789 | dev->pma_counter_select[2] = |
| 790 | p->counter_select[2]; |
| 791 | if (p->counter_select[3]) |
| 792 | dev->pma_counter_select[3] = |
| 793 | p->counter_select[3]; |
| 794 | if (p->counter_select[4]) |
| 795 | dev->pma_counter_select[4] = |
| 796 | p->counter_select[4]; |
| 797 | } |
| 798 | spin_unlock_irqrestore(&dev->pending_lock, flags); |
| 799 | } |
| 800 | ret = recv_pma_get_portsamplescontrol(pmp, ibdev, port); |
| 801 | |
| 802 | bail: |
| 803 | return ret; |
| 804 | } |
| 805 | |
| 806 | static u64 get_counter(struct ipath_ibdev *dev, __be16 sel) |
| 807 | { |
| 808 | u64 ret; |
| 809 | |
| 810 | switch (sel) { |
| 811 | case IB_PMA_PORT_XMIT_DATA: |
| 812 | ret = dev->ipath_sword; |
| 813 | break; |
| 814 | case IB_PMA_PORT_RCV_DATA: |
| 815 | ret = dev->ipath_rword; |
| 816 | break; |
| 817 | case IB_PMA_PORT_XMIT_PKTS: |
| 818 | ret = dev->ipath_spkts; |
| 819 | break; |
| 820 | case IB_PMA_PORT_RCV_PKTS: |
| 821 | ret = dev->ipath_rpkts; |
| 822 | break; |
| 823 | case IB_PMA_PORT_XMIT_WAIT: |
| 824 | ret = dev->ipath_xmit_wait; |
| 825 | break; |
| 826 | default: |
| 827 | ret = 0; |
| 828 | } |
| 829 | |
| 830 | return ret; |
| 831 | } |
| 832 | |
| 833 | static int recv_pma_get_portsamplesresult(struct ib_perf *pmp, |
| 834 | struct ib_device *ibdev) |
| 835 | { |
| 836 | struct ib_pma_portsamplesresult *p = |
| 837 | (struct ib_pma_portsamplesresult *)pmp->data; |
| 838 | struct ipath_ibdev *dev = to_idev(ibdev); |
| 839 | int i; |
| 840 | |
| 841 | memset(pmp->data, 0, sizeof(pmp->data)); |
| 842 | p->tag = cpu_to_be16(dev->pma_tag); |
| 843 | p->sample_status = cpu_to_be16(dev->pma_sample_status); |
| 844 | for (i = 0; i < ARRAY_SIZE(dev->pma_counter_select); i++) |
| 845 | p->counter[i] = cpu_to_be32( |
| 846 | get_counter(dev, dev->pma_counter_select[i])); |
| 847 | |
| 848 | return reply((struct ib_smp *) pmp); |
| 849 | } |
| 850 | |
| 851 | static int recv_pma_get_portsamplesresult_ext(struct ib_perf *pmp, |
| 852 | struct ib_device *ibdev) |
| 853 | { |
| 854 | struct ib_pma_portsamplesresult_ext *p = |
| 855 | (struct ib_pma_portsamplesresult_ext *)pmp->data; |
| 856 | struct ipath_ibdev *dev = to_idev(ibdev); |
| 857 | int i; |
| 858 | |
| 859 | memset(pmp->data, 0, sizeof(pmp->data)); |
| 860 | p->tag = cpu_to_be16(dev->pma_tag); |
| 861 | p->sample_status = cpu_to_be16(dev->pma_sample_status); |
| 862 | /* 64 bits */ |
| 863 | p->extended_width = __constant_cpu_to_be32(0x80000000); |
| 864 | for (i = 0; i < ARRAY_SIZE(dev->pma_counter_select); i++) |
| 865 | p->counter[i] = cpu_to_be64( |
| 866 | get_counter(dev, dev->pma_counter_select[i])); |
| 867 | |
| 868 | return reply((struct ib_smp *) pmp); |
| 869 | } |
| 870 | |
| 871 | static int recv_pma_get_portcounters(struct ib_perf *pmp, |
| 872 | struct ib_device *ibdev, u8 port) |
| 873 | { |
| 874 | struct ib_pma_portcounters *p = (struct ib_pma_portcounters *) |
| 875 | pmp->data; |
| 876 | struct ipath_ibdev *dev = to_idev(ibdev); |
| 877 | struct ipath_layer_counters cntrs; |
| 878 | u8 port_select = p->port_select; |
| 879 | |
| 880 | ipath_layer_get_counters(dev->dd, &cntrs); |
| 881 | |
| 882 | /* Adjust counters for any resets done. */ |
| 883 | cntrs.symbol_error_counter -= dev->n_symbol_error_counter; |
| 884 | cntrs.link_error_recovery_counter -= |
| 885 | dev->n_link_error_recovery_counter; |
| 886 | cntrs.link_downed_counter -= dev->n_link_downed_counter; |
| 887 | cntrs.port_rcv_errors += dev->rcv_errors; |
| 888 | cntrs.port_rcv_errors -= dev->n_port_rcv_errors; |
| 889 | cntrs.port_rcv_remphys_errors -= dev->n_port_rcv_remphys_errors; |
| 890 | cntrs.port_xmit_discards -= dev->n_port_xmit_discards; |
| 891 | cntrs.port_xmit_data -= dev->n_port_xmit_data; |
| 892 | cntrs.port_rcv_data -= dev->n_port_rcv_data; |
| 893 | cntrs.port_xmit_packets -= dev->n_port_xmit_packets; |
| 894 | cntrs.port_rcv_packets -= dev->n_port_rcv_packets; |
| 895 | |
| 896 | memset(pmp->data, 0, sizeof(pmp->data)); |
| 897 | |
| 898 | p->port_select = port_select; |
| 899 | if (pmp->attr_mod != 0 || |
| 900 | (port_select != port && port_select != 0xFF)) |
| 901 | pmp->status |= IB_SMP_INVALID_FIELD; |
| 902 | |
| 903 | if (cntrs.symbol_error_counter > 0xFFFFUL) |
| 904 | p->symbol_error_counter = __constant_cpu_to_be16(0xFFFF); |
| 905 | else |
| 906 | p->symbol_error_counter = |
| 907 | cpu_to_be16((u16)cntrs.symbol_error_counter); |
| 908 | if (cntrs.link_error_recovery_counter > 0xFFUL) |
| 909 | p->link_error_recovery_counter = 0xFF; |
| 910 | else |
| 911 | p->link_error_recovery_counter = |
| 912 | (u8)cntrs.link_error_recovery_counter; |
| 913 | if (cntrs.link_downed_counter > 0xFFUL) |
| 914 | p->link_downed_counter = 0xFF; |
| 915 | else |
| 916 | p->link_downed_counter = (u8)cntrs.link_downed_counter; |
| 917 | if (cntrs.port_rcv_errors > 0xFFFFUL) |
| 918 | p->port_rcv_errors = __constant_cpu_to_be16(0xFFFF); |
| 919 | else |
| 920 | p->port_rcv_errors = |
| 921 | cpu_to_be16((u16) cntrs.port_rcv_errors); |
| 922 | if (cntrs.port_rcv_remphys_errors > 0xFFFFUL) |
| 923 | p->port_rcv_remphys_errors = __constant_cpu_to_be16(0xFFFF); |
| 924 | else |
| 925 | p->port_rcv_remphys_errors = |
| 926 | cpu_to_be16((u16)cntrs.port_rcv_remphys_errors); |
| 927 | if (cntrs.port_xmit_discards > 0xFFFFUL) |
| 928 | p->port_xmit_discards = __constant_cpu_to_be16(0xFFFF); |
| 929 | else |
| 930 | p->port_xmit_discards = |
| 931 | cpu_to_be16((u16)cntrs.port_xmit_discards); |
| 932 | if (cntrs.port_xmit_data > 0xFFFFFFFFUL) |
| 933 | p->port_xmit_data = __constant_cpu_to_be32(0xFFFFFFFF); |
| 934 | else |
| 935 | p->port_xmit_data = cpu_to_be32((u32)cntrs.port_xmit_data); |
| 936 | if (cntrs.port_rcv_data > 0xFFFFFFFFUL) |
| 937 | p->port_rcv_data = __constant_cpu_to_be32(0xFFFFFFFF); |
| 938 | else |
| 939 | p->port_rcv_data = cpu_to_be32((u32)cntrs.port_rcv_data); |
| 940 | if (cntrs.port_xmit_packets > 0xFFFFFFFFUL) |
| 941 | p->port_xmit_packets = __constant_cpu_to_be32(0xFFFFFFFF); |
| 942 | else |
| 943 | p->port_xmit_packets = |
| 944 | cpu_to_be32((u32)cntrs.port_xmit_packets); |
| 945 | if (cntrs.port_rcv_packets > 0xFFFFFFFFUL) |
| 946 | p->port_rcv_packets = __constant_cpu_to_be32(0xFFFFFFFF); |
| 947 | else |
| 948 | p->port_rcv_packets = |
| 949 | cpu_to_be32((u32) cntrs.port_rcv_packets); |
| 950 | |
| 951 | return reply((struct ib_smp *) pmp); |
| 952 | } |
| 953 | |
| 954 | static int recv_pma_get_portcounters_ext(struct ib_perf *pmp, |
| 955 | struct ib_device *ibdev, u8 port) |
| 956 | { |
| 957 | struct ib_pma_portcounters_ext *p = |
| 958 | (struct ib_pma_portcounters_ext *)pmp->data; |
| 959 | struct ipath_ibdev *dev = to_idev(ibdev); |
| 960 | u64 swords, rwords, spkts, rpkts, xwait; |
| 961 | u8 port_select = p->port_select; |
| 962 | |
| 963 | ipath_layer_snapshot_counters(dev->dd, &swords, &rwords, &spkts, |
| 964 | &rpkts, &xwait); |
| 965 | |
| 966 | /* Adjust counters for any resets done. */ |
| 967 | swords -= dev->n_port_xmit_data; |
| 968 | rwords -= dev->n_port_rcv_data; |
| 969 | spkts -= dev->n_port_xmit_packets; |
| 970 | rpkts -= dev->n_port_rcv_packets; |
| 971 | |
| 972 | memset(pmp->data, 0, sizeof(pmp->data)); |
| 973 | |
| 974 | p->port_select = port_select; |
| 975 | if (pmp->attr_mod != 0 || |
| 976 | (port_select != port && port_select != 0xFF)) |
| 977 | pmp->status |= IB_SMP_INVALID_FIELD; |
| 978 | |
| 979 | p->port_xmit_data = cpu_to_be64(swords); |
| 980 | p->port_rcv_data = cpu_to_be64(rwords); |
| 981 | p->port_xmit_packets = cpu_to_be64(spkts); |
| 982 | p->port_rcv_packets = cpu_to_be64(rpkts); |
| 983 | p->port_unicast_xmit_packets = cpu_to_be64(dev->n_unicast_xmit); |
| 984 | p->port_unicast_rcv_packets = cpu_to_be64(dev->n_unicast_rcv); |
| 985 | p->port_multicast_xmit_packets = cpu_to_be64(dev->n_multicast_xmit); |
| 986 | p->port_multicast_rcv_packets = cpu_to_be64(dev->n_multicast_rcv); |
| 987 | |
| 988 | return reply((struct ib_smp *) pmp); |
| 989 | } |
| 990 | |
| 991 | static int recv_pma_set_portcounters(struct ib_perf *pmp, |
| 992 | struct ib_device *ibdev, u8 port) |
| 993 | { |
| 994 | struct ib_pma_portcounters *p = (struct ib_pma_portcounters *) |
| 995 | pmp->data; |
| 996 | struct ipath_ibdev *dev = to_idev(ibdev); |
| 997 | struct ipath_layer_counters cntrs; |
| 998 | |
| 999 | /* |
| 1000 | * Since the HW doesn't support clearing counters, we save the |
| 1001 | * current count and subtract it from future responses. |
| 1002 | */ |
| 1003 | ipath_layer_get_counters(dev->dd, &cntrs); |
| 1004 | |
| 1005 | if (p->counter_select & IB_PMA_SEL_SYMBOL_ERROR) |
| 1006 | dev->n_symbol_error_counter = cntrs.symbol_error_counter; |
| 1007 | |
| 1008 | if (p->counter_select & IB_PMA_SEL_LINK_ERROR_RECOVERY) |
| 1009 | dev->n_link_error_recovery_counter = |
| 1010 | cntrs.link_error_recovery_counter; |
| 1011 | |
| 1012 | if (p->counter_select & IB_PMA_SEL_LINK_DOWNED) |
| 1013 | dev->n_link_downed_counter = cntrs.link_downed_counter; |
| 1014 | |
| 1015 | if (p->counter_select & IB_PMA_SEL_PORT_RCV_ERRORS) |
| 1016 | dev->n_port_rcv_errors = |
| 1017 | cntrs.port_rcv_errors + dev->rcv_errors; |
| 1018 | |
| 1019 | if (p->counter_select & IB_PMA_SEL_PORT_RCV_REMPHYS_ERRORS) |
| 1020 | dev->n_port_rcv_remphys_errors = |
| 1021 | cntrs.port_rcv_remphys_errors; |
| 1022 | |
| 1023 | if (p->counter_select & IB_PMA_SEL_PORT_XMIT_DISCARDS) |
| 1024 | dev->n_port_xmit_discards = cntrs.port_xmit_discards; |
| 1025 | |
| 1026 | if (p->counter_select & IB_PMA_SEL_PORT_XMIT_DATA) |
| 1027 | dev->n_port_xmit_data = cntrs.port_xmit_data; |
| 1028 | |
| 1029 | if (p->counter_select & IB_PMA_SEL_PORT_RCV_DATA) |
| 1030 | dev->n_port_rcv_data = cntrs.port_rcv_data; |
| 1031 | |
| 1032 | if (p->counter_select & IB_PMA_SEL_PORT_XMIT_PACKETS) |
| 1033 | dev->n_port_xmit_packets = cntrs.port_xmit_packets; |
| 1034 | |
| 1035 | if (p->counter_select & IB_PMA_SEL_PORT_RCV_PACKETS) |
| 1036 | dev->n_port_rcv_packets = cntrs.port_rcv_packets; |
| 1037 | |
| 1038 | return recv_pma_get_portcounters(pmp, ibdev, port); |
| 1039 | } |
| 1040 | |
| 1041 | static int recv_pma_set_portcounters_ext(struct ib_perf *pmp, |
| 1042 | struct ib_device *ibdev, u8 port) |
| 1043 | { |
| 1044 | struct ib_pma_portcounters *p = (struct ib_pma_portcounters *) |
| 1045 | pmp->data; |
| 1046 | struct ipath_ibdev *dev = to_idev(ibdev); |
| 1047 | u64 swords, rwords, spkts, rpkts, xwait; |
| 1048 | |
| 1049 | ipath_layer_snapshot_counters(dev->dd, &swords, &rwords, &spkts, |
| 1050 | &rpkts, &xwait); |
| 1051 | |
| 1052 | if (p->counter_select & IB_PMA_SELX_PORT_XMIT_DATA) |
| 1053 | dev->n_port_xmit_data = swords; |
| 1054 | |
| 1055 | if (p->counter_select & IB_PMA_SELX_PORT_RCV_DATA) |
| 1056 | dev->n_port_rcv_data = rwords; |
| 1057 | |
| 1058 | if (p->counter_select & IB_PMA_SELX_PORT_XMIT_PACKETS) |
| 1059 | dev->n_port_xmit_packets = spkts; |
| 1060 | |
| 1061 | if (p->counter_select & IB_PMA_SELX_PORT_RCV_PACKETS) |
| 1062 | dev->n_port_rcv_packets = rpkts; |
| 1063 | |
| 1064 | if (p->counter_select & IB_PMA_SELX_PORT_UNI_XMIT_PACKETS) |
| 1065 | dev->n_unicast_xmit = 0; |
| 1066 | |
| 1067 | if (p->counter_select & IB_PMA_SELX_PORT_UNI_RCV_PACKETS) |
| 1068 | dev->n_unicast_rcv = 0; |
| 1069 | |
| 1070 | if (p->counter_select & IB_PMA_SELX_PORT_MULTI_XMIT_PACKETS) |
| 1071 | dev->n_multicast_xmit = 0; |
| 1072 | |
| 1073 | if (p->counter_select & IB_PMA_SELX_PORT_MULTI_RCV_PACKETS) |
| 1074 | dev->n_multicast_rcv = 0; |
| 1075 | |
| 1076 | return recv_pma_get_portcounters_ext(pmp, ibdev, port); |
| 1077 | } |
| 1078 | |
| 1079 | static int process_subn(struct ib_device *ibdev, int mad_flags, |
| 1080 | u8 port_num, struct ib_mad *in_mad, |
| 1081 | struct ib_mad *out_mad) |
| 1082 | { |
| 1083 | struct ib_smp *smp = (struct ib_smp *)out_mad; |
| 1084 | struct ipath_ibdev *dev = to_idev(ibdev); |
| 1085 | int ret; |
| 1086 | |
| 1087 | *out_mad = *in_mad; |
| 1088 | if (smp->class_version != 1) { |
| 1089 | smp->status |= IB_SMP_UNSUP_VERSION; |
| 1090 | ret = reply(smp); |
| 1091 | goto bail; |
| 1092 | } |
| 1093 | |
| 1094 | /* Is the mkey in the process of expiring? */ |
| 1095 | if (dev->mkey_lease_timeout && jiffies >= dev->mkey_lease_timeout) { |
| 1096 | /* Clear timeout and mkey protection field. */ |
| 1097 | dev->mkey_lease_timeout = 0; |
| 1098 | dev->mkeyprot_resv_lmc &= 0x3F; |
| 1099 | } |
| 1100 | |
| 1101 | /* |
| 1102 | * M_Key checking depends on |
| 1103 | * Portinfo:M_Key_protect_bits |
| 1104 | */ |
| 1105 | if ((mad_flags & IB_MAD_IGNORE_MKEY) == 0 && dev->mkey != 0 && |
| 1106 | dev->mkey != smp->mkey && |
| 1107 | (smp->method == IB_MGMT_METHOD_SET || |
| 1108 | (smp->method == IB_MGMT_METHOD_GET && |
| 1109 | (dev->mkeyprot_resv_lmc >> 7) != 0))) { |
| 1110 | if (dev->mkey_violations != 0xFFFF) |
| 1111 | ++dev->mkey_violations; |
| 1112 | if (dev->mkey_lease_timeout || |
| 1113 | dev->mkey_lease_period == 0) { |
| 1114 | ret = IB_MAD_RESULT_SUCCESS | |
| 1115 | IB_MAD_RESULT_CONSUMED; |
| 1116 | goto bail; |
| 1117 | } |
| 1118 | dev->mkey_lease_timeout = jiffies + |
| 1119 | dev->mkey_lease_period * HZ; |
| 1120 | /* Future: Generate a trap notice. */ |
| 1121 | ret = IB_MAD_RESULT_SUCCESS | IB_MAD_RESULT_CONSUMED; |
| 1122 | goto bail; |
| 1123 | } else if (dev->mkey_lease_timeout) |
| 1124 | dev->mkey_lease_timeout = 0; |
| 1125 | |
| 1126 | switch (smp->method) { |
| 1127 | case IB_MGMT_METHOD_GET: |
| 1128 | switch (smp->attr_id) { |
| 1129 | case IB_SMP_ATTR_NODE_DESC: |
| 1130 | ret = recv_subn_get_nodedescription(smp, ibdev); |
| 1131 | goto bail; |
| 1132 | case IB_SMP_ATTR_NODE_INFO: |
| 1133 | ret = recv_subn_get_nodeinfo(smp, ibdev, port_num); |
| 1134 | goto bail; |
| 1135 | case IB_SMP_ATTR_GUID_INFO: |
| 1136 | ret = recv_subn_get_guidinfo(smp, ibdev); |
| 1137 | goto bail; |
| 1138 | case IB_SMP_ATTR_PORT_INFO: |
| 1139 | ret = recv_subn_get_portinfo(smp, ibdev, port_num); |
| 1140 | goto bail; |
| 1141 | case IB_SMP_ATTR_PKEY_TABLE: |
| 1142 | ret = recv_subn_get_pkeytable(smp, ibdev); |
| 1143 | goto bail; |
| 1144 | case IB_SMP_ATTR_SM_INFO: |
| 1145 | if (dev->port_cap_flags & IB_PORT_SM_DISABLED) { |
| 1146 | ret = IB_MAD_RESULT_SUCCESS | |
| 1147 | IB_MAD_RESULT_CONSUMED; |
| 1148 | goto bail; |
| 1149 | } |
| 1150 | if (dev->port_cap_flags & IB_PORT_SM) { |
| 1151 | ret = IB_MAD_RESULT_SUCCESS; |
| 1152 | goto bail; |
| 1153 | } |
| 1154 | /* FALLTHROUGH */ |
| 1155 | default: |
| 1156 | smp->status |= IB_SMP_UNSUP_METH_ATTR; |
| 1157 | ret = reply(smp); |
| 1158 | goto bail; |
| 1159 | } |
| 1160 | |
| 1161 | case IB_MGMT_METHOD_SET: |
| 1162 | switch (smp->attr_id) { |
| 1163 | case IB_SMP_ATTR_GUID_INFO: |
| 1164 | ret = recv_subn_set_guidinfo(smp, ibdev); |
| 1165 | goto bail; |
| 1166 | case IB_SMP_ATTR_PORT_INFO: |
| 1167 | ret = recv_subn_set_portinfo(smp, ibdev, port_num); |
| 1168 | goto bail; |
| 1169 | case IB_SMP_ATTR_PKEY_TABLE: |
| 1170 | ret = recv_subn_set_pkeytable(smp, ibdev); |
| 1171 | goto bail; |
| 1172 | case IB_SMP_ATTR_SM_INFO: |
| 1173 | if (dev->port_cap_flags & IB_PORT_SM_DISABLED) { |
| 1174 | ret = IB_MAD_RESULT_SUCCESS | |
| 1175 | IB_MAD_RESULT_CONSUMED; |
| 1176 | goto bail; |
| 1177 | } |
| 1178 | if (dev->port_cap_flags & IB_PORT_SM) { |
| 1179 | ret = IB_MAD_RESULT_SUCCESS; |
| 1180 | goto bail; |
| 1181 | } |
| 1182 | /* FALLTHROUGH */ |
| 1183 | default: |
| 1184 | smp->status |= IB_SMP_UNSUP_METH_ATTR; |
| 1185 | ret = reply(smp); |
| 1186 | goto bail; |
| 1187 | } |
| 1188 | |
| 1189 | case IB_MGMT_METHOD_GET_RESP: |
| 1190 | /* |
| 1191 | * The ib_mad module will call us to process responses |
| 1192 | * before checking for other consumers. |
| 1193 | * Just tell the caller to process it normally. |
| 1194 | */ |
| 1195 | ret = IB_MAD_RESULT_FAILURE; |
| 1196 | goto bail; |
| 1197 | default: |
| 1198 | smp->status |= IB_SMP_UNSUP_METHOD; |
| 1199 | ret = reply(smp); |
| 1200 | } |
| 1201 | |
| 1202 | bail: |
| 1203 | return ret; |
| 1204 | } |
| 1205 | |
| 1206 | static int process_perf(struct ib_device *ibdev, u8 port_num, |
| 1207 | struct ib_mad *in_mad, |
| 1208 | struct ib_mad *out_mad) |
| 1209 | { |
| 1210 | struct ib_perf *pmp = (struct ib_perf *)out_mad; |
| 1211 | int ret; |
| 1212 | |
| 1213 | *out_mad = *in_mad; |
| 1214 | if (pmp->class_version != 1) { |
| 1215 | pmp->status |= IB_SMP_UNSUP_VERSION; |
| 1216 | ret = reply((struct ib_smp *) pmp); |
| 1217 | goto bail; |
| 1218 | } |
| 1219 | |
| 1220 | switch (pmp->method) { |
| 1221 | case IB_MGMT_METHOD_GET: |
| 1222 | switch (pmp->attr_id) { |
| 1223 | case IB_PMA_CLASS_PORT_INFO: |
| 1224 | ret = recv_pma_get_classportinfo(pmp); |
| 1225 | goto bail; |
| 1226 | case IB_PMA_PORT_SAMPLES_CONTROL: |
| 1227 | ret = recv_pma_get_portsamplescontrol(pmp, ibdev, |
| 1228 | port_num); |
| 1229 | goto bail; |
| 1230 | case IB_PMA_PORT_SAMPLES_RESULT: |
| 1231 | ret = recv_pma_get_portsamplesresult(pmp, ibdev); |
| 1232 | goto bail; |
| 1233 | case IB_PMA_PORT_SAMPLES_RESULT_EXT: |
| 1234 | ret = recv_pma_get_portsamplesresult_ext(pmp, |
| 1235 | ibdev); |
| 1236 | goto bail; |
| 1237 | case IB_PMA_PORT_COUNTERS: |
| 1238 | ret = recv_pma_get_portcounters(pmp, ibdev, |
| 1239 | port_num); |
| 1240 | goto bail; |
| 1241 | case IB_PMA_PORT_COUNTERS_EXT: |
| 1242 | ret = recv_pma_get_portcounters_ext(pmp, ibdev, |
| 1243 | port_num); |
| 1244 | goto bail; |
| 1245 | default: |
| 1246 | pmp->status |= IB_SMP_UNSUP_METH_ATTR; |
| 1247 | ret = reply((struct ib_smp *) pmp); |
| 1248 | goto bail; |
| 1249 | } |
| 1250 | |
| 1251 | case IB_MGMT_METHOD_SET: |
| 1252 | switch (pmp->attr_id) { |
| 1253 | case IB_PMA_PORT_SAMPLES_CONTROL: |
| 1254 | ret = recv_pma_set_portsamplescontrol(pmp, ibdev, |
| 1255 | port_num); |
| 1256 | goto bail; |
| 1257 | case IB_PMA_PORT_COUNTERS: |
| 1258 | ret = recv_pma_set_portcounters(pmp, ibdev, |
| 1259 | port_num); |
| 1260 | goto bail; |
| 1261 | case IB_PMA_PORT_COUNTERS_EXT: |
| 1262 | ret = recv_pma_set_portcounters_ext(pmp, ibdev, |
| 1263 | port_num); |
| 1264 | goto bail; |
| 1265 | default: |
| 1266 | pmp->status |= IB_SMP_UNSUP_METH_ATTR; |
| 1267 | ret = reply((struct ib_smp *) pmp); |
| 1268 | goto bail; |
| 1269 | } |
| 1270 | |
| 1271 | case IB_MGMT_METHOD_GET_RESP: |
| 1272 | /* |
| 1273 | * The ib_mad module will call us to process responses |
| 1274 | * before checking for other consumers. |
| 1275 | * Just tell the caller to process it normally. |
| 1276 | */ |
| 1277 | ret = IB_MAD_RESULT_FAILURE; |
| 1278 | goto bail; |
| 1279 | default: |
| 1280 | pmp->status |= IB_SMP_UNSUP_METHOD; |
| 1281 | ret = reply((struct ib_smp *) pmp); |
| 1282 | } |
| 1283 | |
| 1284 | bail: |
| 1285 | return ret; |
| 1286 | } |
| 1287 | |
| 1288 | /** |
| 1289 | * ipath_process_mad - process an incoming MAD packet |
| 1290 | * @ibdev: the infiniband device this packet came in on |
| 1291 | * @mad_flags: MAD flags |
| 1292 | * @port_num: the port number this packet came in on |
| 1293 | * @in_wc: the work completion entry for this packet |
| 1294 | * @in_grh: the global route header for this packet |
| 1295 | * @in_mad: the incoming MAD |
| 1296 | * @out_mad: any outgoing MAD reply |
| 1297 | * |
| 1298 | * Returns IB_MAD_RESULT_SUCCESS if this is a MAD that we are not |
| 1299 | * interested in processing. |
| 1300 | * |
| 1301 | * Note that the verbs framework has already done the MAD sanity checks, |
| 1302 | * and hop count/pointer updating for IB_MGMT_CLASS_SUBN_DIRECTED_ROUTE |
| 1303 | * MADs. |
| 1304 | * |
| 1305 | * This is called by the ib_mad module. |
| 1306 | */ |
| 1307 | int ipath_process_mad(struct ib_device *ibdev, int mad_flags, u8 port_num, |
| 1308 | struct ib_wc *in_wc, struct ib_grh *in_grh, |
| 1309 | struct ib_mad *in_mad, struct ib_mad *out_mad) |
| 1310 | { |
| 1311 | struct ipath_ibdev *dev = to_idev(ibdev); |
| 1312 | int ret; |
| 1313 | |
| 1314 | /* |
| 1315 | * Snapshot current HW counters to "clear" them. |
| 1316 | * This should be done when the driver is loaded except that for |
| 1317 | * some reason we get a zillion errors when brining up the link. |
| 1318 | */ |
| 1319 | if (dev->rcv_errors == 0) { |
| 1320 | struct ipath_layer_counters cntrs; |
| 1321 | |
| 1322 | ipath_layer_get_counters(to_idev(ibdev)->dd, &cntrs); |
| 1323 | dev->rcv_errors++; |
| 1324 | dev->n_symbol_error_counter = cntrs.symbol_error_counter; |
| 1325 | dev->n_link_error_recovery_counter = |
| 1326 | cntrs.link_error_recovery_counter; |
| 1327 | dev->n_link_downed_counter = cntrs.link_downed_counter; |
| 1328 | dev->n_port_rcv_errors = cntrs.port_rcv_errors + 1; |
| 1329 | dev->n_port_rcv_remphys_errors = |
| 1330 | cntrs.port_rcv_remphys_errors; |
| 1331 | dev->n_port_xmit_discards = cntrs.port_xmit_discards; |
| 1332 | dev->n_port_xmit_data = cntrs.port_xmit_data; |
| 1333 | dev->n_port_rcv_data = cntrs.port_rcv_data; |
| 1334 | dev->n_port_xmit_packets = cntrs.port_xmit_packets; |
| 1335 | dev->n_port_rcv_packets = cntrs.port_rcv_packets; |
| 1336 | } |
| 1337 | switch (in_mad->mad_hdr.mgmt_class) { |
| 1338 | case IB_MGMT_CLASS_SUBN_DIRECTED_ROUTE: |
| 1339 | case IB_MGMT_CLASS_SUBN_LID_ROUTED: |
| 1340 | ret = process_subn(ibdev, mad_flags, port_num, |
| 1341 | in_mad, out_mad); |
| 1342 | goto bail; |
| 1343 | case IB_MGMT_CLASS_PERF_MGMT: |
| 1344 | ret = process_perf(ibdev, port_num, in_mad, out_mad); |
| 1345 | goto bail; |
| 1346 | default: |
| 1347 | ret = IB_MAD_RESULT_SUCCESS; |
| 1348 | } |
| 1349 | |
| 1350 | bail: |
| 1351 | return ret; |
| 1352 | } |