2 * Copyright (c) 2013-2017, Mellanox Technologies, Ltd. All rights reserved.
4 * Redistribution and use in source and binary forms, with or without
5 * modification, are permitted provided that the following conditions
7 * 1. Redistributions of source code must retain the above copyright
8 * notice, this list of conditions and the following disclaimer.
9 * 2. Redistributions in binary form must reproduce the above copyright
10 * notice, this list of conditions and the following disclaimer in the
11 * documentation and/or other materials provided with the distribution.
13 * THIS SOFTWARE IS PROVIDED BY AUTHOR AND CONTRIBUTORS `AS IS' AND
14 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
15 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
16 * ARE DISCLAIMED. IN NO EVENT SHALL AUTHOR OR CONTRIBUTORS BE LIABLE
17 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
18 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
19 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
20 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
21 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
22 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
28 #include <linux/interrupt.h>
29 #include <linux/module.h>
30 #include <dev/mlx5/port.h>
31 #include <dev/mlx5/mlx5_ifc.h>
32 #include <dev/mlx5/mlx5_fpga/core.h>
33 #include "mlx5_core.h"
38 #include <net/rss_config.h>
39 #include <netinet/in_rss.h>
43 MLX5_EQE_SIZE = sizeof(struct mlx5_eqe),
44 MLX5_EQE_OWNER_INIT_VAL = 0x1,
48 MLX5_NUM_SPARE_EQE = 0x80,
49 MLX5_NUM_ASYNC_EQE = 0x100,
50 MLX5_NUM_CMD_EQE = 32,
54 MLX5_EQ_DOORBEL_OFFSET = 0x40,
57 #define MLX5_ASYNC_EVENT_MASK ((1ull << MLX5_EVENT_TYPE_PATH_MIG) | \
58 (1ull << MLX5_EVENT_TYPE_COMM_EST) | \
59 (1ull << MLX5_EVENT_TYPE_SQ_DRAINED) | \
60 (1ull << MLX5_EVENT_TYPE_CQ_ERROR) | \
61 (1ull << MLX5_EVENT_TYPE_WQ_CATAS_ERROR) | \
62 (1ull << MLX5_EVENT_TYPE_PATH_MIG_FAILED) | \
63 (1ull << MLX5_EVENT_TYPE_WQ_INVAL_REQ_ERROR) | \
64 (1ull << MLX5_EVENT_TYPE_WQ_ACCESS_ERROR) | \
65 (1ull << MLX5_EVENT_TYPE_PORT_CHANGE) | \
66 (1ull << MLX5_EVENT_TYPE_SRQ_CATAS_ERROR) | \
67 (1ull << MLX5_EVENT_TYPE_SRQ_LAST_WQE) | \
68 (1ull << MLX5_EVENT_TYPE_SRQ_RQ_LIMIT))
81 /*Function prototype*/
82 static void mlx5_port_module_event(struct mlx5_core_dev *dev,
83 struct mlx5_eqe *eqe);
84 static void mlx5_port_general_notification_event(struct mlx5_core_dev *dev,
85 struct mlx5_eqe *eqe);
87 static int mlx5_cmd_destroy_eq(struct mlx5_core_dev *dev, u8 eqn)
89 u32 in[MLX5_ST_SZ_DW(destroy_eq_in)] = {0};
90 u32 out[MLX5_ST_SZ_DW(destroy_eq_out)] = {0};
92 MLX5_SET(destroy_eq_in, in, opcode, MLX5_CMD_OP_DESTROY_EQ);
93 MLX5_SET(destroy_eq_in, in, eq_number, eqn);
95 return mlx5_cmd_exec(dev, in, sizeof(in), out, sizeof(out));
98 static struct mlx5_eqe *get_eqe(struct mlx5_eq *eq, u32 entry)
100 return mlx5_buf_offset(&eq->buf, entry * MLX5_EQE_SIZE);
103 static struct mlx5_eqe *next_eqe_sw(struct mlx5_eq *eq)
105 struct mlx5_eqe *eqe = get_eqe(eq, eq->cons_index & (eq->nent - 1));
107 return ((eqe->owner & 1) ^ !!(eq->cons_index & eq->nent)) ? NULL : eqe;
110 static const char *eqe_type_str(u8 type)
113 case MLX5_EVENT_TYPE_COMP:
114 return "MLX5_EVENT_TYPE_COMP";
115 case MLX5_EVENT_TYPE_PATH_MIG:
116 return "MLX5_EVENT_TYPE_PATH_MIG";
117 case MLX5_EVENT_TYPE_COMM_EST:
118 return "MLX5_EVENT_TYPE_COMM_EST";
119 case MLX5_EVENT_TYPE_SQ_DRAINED:
120 return "MLX5_EVENT_TYPE_SQ_DRAINED";
121 case MLX5_EVENT_TYPE_SRQ_LAST_WQE:
122 return "MLX5_EVENT_TYPE_SRQ_LAST_WQE";
123 case MLX5_EVENT_TYPE_SRQ_RQ_LIMIT:
124 return "MLX5_EVENT_TYPE_SRQ_RQ_LIMIT";
125 case MLX5_EVENT_TYPE_CQ_ERROR:
126 return "MLX5_EVENT_TYPE_CQ_ERROR";
127 case MLX5_EVENT_TYPE_WQ_CATAS_ERROR:
128 return "MLX5_EVENT_TYPE_WQ_CATAS_ERROR";
129 case MLX5_EVENT_TYPE_PATH_MIG_FAILED:
130 return "MLX5_EVENT_TYPE_PATH_MIG_FAILED";
131 case MLX5_EVENT_TYPE_WQ_INVAL_REQ_ERROR:
132 return "MLX5_EVENT_TYPE_WQ_INVAL_REQ_ERROR";
133 case MLX5_EVENT_TYPE_WQ_ACCESS_ERROR:
134 return "MLX5_EVENT_TYPE_WQ_ACCESS_ERROR";
135 case MLX5_EVENT_TYPE_SRQ_CATAS_ERROR:
136 return "MLX5_EVENT_TYPE_SRQ_CATAS_ERROR";
137 case MLX5_EVENT_TYPE_INTERNAL_ERROR:
138 return "MLX5_EVENT_TYPE_INTERNAL_ERROR";
139 case MLX5_EVENT_TYPE_PORT_CHANGE:
140 return "MLX5_EVENT_TYPE_PORT_CHANGE";
141 case MLX5_EVENT_TYPE_GPIO_EVENT:
142 return "MLX5_EVENT_TYPE_GPIO_EVENT";
143 case MLX5_EVENT_TYPE_CODING_PORT_MODULE_EVENT:
144 return "MLX5_EVENT_TYPE_PORT_MODULE_EVENT";
145 case MLX5_EVENT_TYPE_TEMP_WARN_EVENT:
146 return "MLX5_EVENT_TYPE_TEMP_WARN_EVENT";
147 case MLX5_EVENT_TYPE_REMOTE_CONFIG:
148 return "MLX5_EVENT_TYPE_REMOTE_CONFIG";
149 case MLX5_EVENT_TYPE_DB_BF_CONGESTION:
150 return "MLX5_EVENT_TYPE_DB_BF_CONGESTION";
151 case MLX5_EVENT_TYPE_STALL_EVENT:
152 return "MLX5_EVENT_TYPE_STALL_EVENT";
153 case MLX5_EVENT_TYPE_CMD:
154 return "MLX5_EVENT_TYPE_CMD";
155 case MLX5_EVENT_TYPE_PAGE_REQUEST:
156 return "MLX5_EVENT_TYPE_PAGE_REQUEST";
157 case MLX5_EVENT_TYPE_NIC_VPORT_CHANGE:
158 return "MLX5_EVENT_TYPE_NIC_VPORT_CHANGE";
159 case MLX5_EVENT_TYPE_FPGA_ERROR:
160 return "MLX5_EVENT_TYPE_FPGA_ERROR";
161 case MLX5_EVENT_TYPE_FPGA_QP_ERROR:
162 return "MLX5_EVENT_TYPE_FPGA_QP_ERROR";
163 case MLX5_EVENT_TYPE_CODING_DCBX_CHANGE_EVENT:
164 return "MLX5_EVENT_TYPE_CODING_DCBX_CHANGE_EVENT";
165 case MLX5_EVENT_TYPE_CODING_GENERAL_NOTIFICATION_EVENT:
166 return "MLX5_EVENT_TYPE_CODING_GENERAL_NOTIFICATION_EVENT";
168 return "Unrecognized event";
172 static enum mlx5_dev_event port_subtype_event(u8 subtype)
175 case MLX5_PORT_CHANGE_SUBTYPE_DOWN:
176 return MLX5_DEV_EVENT_PORT_DOWN;
177 case MLX5_PORT_CHANGE_SUBTYPE_ACTIVE:
178 return MLX5_DEV_EVENT_PORT_UP;
179 case MLX5_PORT_CHANGE_SUBTYPE_INITIALIZED:
180 return MLX5_DEV_EVENT_PORT_INITIALIZED;
181 case MLX5_PORT_CHANGE_SUBTYPE_LID:
182 return MLX5_DEV_EVENT_LID_CHANGE;
183 case MLX5_PORT_CHANGE_SUBTYPE_PKEY:
184 return MLX5_DEV_EVENT_PKEY_CHANGE;
185 case MLX5_PORT_CHANGE_SUBTYPE_GUID:
186 return MLX5_DEV_EVENT_GUID_CHANGE;
187 case MLX5_PORT_CHANGE_SUBTYPE_CLIENT_REREG:
188 return MLX5_DEV_EVENT_CLIENT_REREG;
193 static enum mlx5_dev_event dcbx_subevent(u8 subtype)
196 case MLX5_DCBX_EVENT_SUBTYPE_ERROR_STATE_DCBX:
197 return MLX5_DEV_EVENT_ERROR_STATE_DCBX;
198 case MLX5_DCBX_EVENT_SUBTYPE_REMOTE_CONFIG_CHANGE:
199 return MLX5_DEV_EVENT_REMOTE_CONFIG_CHANGE;
200 case MLX5_DCBX_EVENT_SUBTYPE_LOCAL_OPER_CHANGE:
201 return MLX5_DEV_EVENT_LOCAL_OPER_CHANGE;
202 case MLX5_DCBX_EVENT_SUBTYPE_REMOTE_CONFIG_APP_PRIORITY_CHANGE:
203 return MLX5_DEV_EVENT_REMOTE_CONFIG_APPLICATION_PRIORITY_CHANGE;
208 static void eq_update_ci(struct mlx5_eq *eq, int arm)
210 __be32 __iomem *addr = eq->doorbell + (arm ? 0 : 2);
211 u32 val = (eq->cons_index & 0xffffff) | (eq->eqn << 24);
212 __raw_writel((__force u32) cpu_to_be32(val), addr);
213 /* We still want ordering, just not swabbing, so add a barrier */
218 mlx5_temp_warning_event(struct mlx5_core_dev *dev, struct mlx5_eqe *eqe)
222 "High temperature on sensors with bit set %#jx %#jx",
223 (uintmax_t)be64_to_cpu(eqe->data.temp_warning.sensor_warning_msb),
224 (uintmax_t)be64_to_cpu(eqe->data.temp_warning.sensor_warning_lsb));
227 static int mlx5_eq_int(struct mlx5_core_dev *dev, struct mlx5_eq *eq)
229 struct mlx5_eqe *eqe;
236 while ((eqe = next_eqe_sw(eq))) {
238 * Make sure we read EQ entry contents after we've
239 * checked the ownership bit.
243 mlx5_core_dbg(eq->dev, "eqn %d, eqe type %s\n",
244 eq->eqn, eqe_type_str(eqe->type));
246 case MLX5_EVENT_TYPE_COMP:
247 cqn = be32_to_cpu(eqe->data.comp.cqn) & 0xffffff;
248 mlx5_cq_completion(dev, cqn);
251 case MLX5_EVENT_TYPE_PATH_MIG:
252 case MLX5_EVENT_TYPE_COMM_EST:
253 case MLX5_EVENT_TYPE_SQ_DRAINED:
254 case MLX5_EVENT_TYPE_SRQ_LAST_WQE:
255 case MLX5_EVENT_TYPE_WQ_CATAS_ERROR:
256 case MLX5_EVENT_TYPE_PATH_MIG_FAILED:
257 case MLX5_EVENT_TYPE_WQ_INVAL_REQ_ERROR:
258 case MLX5_EVENT_TYPE_WQ_ACCESS_ERROR:
259 rsn = be32_to_cpu(eqe->data.qp_srq.qp_srq_n) & 0xffffff;
260 mlx5_core_dbg(dev, "event %s(%d) arrived on resource 0x%x\n",
261 eqe_type_str(eqe->type), eqe->type, rsn);
262 mlx5_rsc_event(dev, rsn, eqe->type);
265 case MLX5_EVENT_TYPE_SRQ_RQ_LIMIT:
266 case MLX5_EVENT_TYPE_SRQ_CATAS_ERROR:
267 rsn = be32_to_cpu(eqe->data.qp_srq.qp_srq_n) & 0xffffff;
268 mlx5_core_dbg(dev, "SRQ event %s(%d): srqn 0x%x\n",
269 eqe_type_str(eqe->type), eqe->type, rsn);
270 mlx5_srq_event(dev, rsn, eqe->type);
273 case MLX5_EVENT_TYPE_CMD:
274 if (dev->state != MLX5_DEVICE_STATE_INTERNAL_ERROR) {
275 mlx5_cmd_comp_handler(dev, be32_to_cpu(eqe->data.cmd.vector),
276 MLX5_CMD_MODE_EVENTS);
280 case MLX5_EVENT_TYPE_PORT_CHANGE:
281 port = (eqe->data.port.port >> 4) & 0xf;
282 switch (eqe->sub_type) {
283 case MLX5_PORT_CHANGE_SUBTYPE_DOWN:
284 case MLX5_PORT_CHANGE_SUBTYPE_ACTIVE:
285 case MLX5_PORT_CHANGE_SUBTYPE_LID:
286 case MLX5_PORT_CHANGE_SUBTYPE_PKEY:
287 case MLX5_PORT_CHANGE_SUBTYPE_GUID:
288 case MLX5_PORT_CHANGE_SUBTYPE_CLIENT_REREG:
289 case MLX5_PORT_CHANGE_SUBTYPE_INITIALIZED:
291 dev->event(dev, port_subtype_event(eqe->sub_type),
292 (unsigned long)port);
295 mlx5_core_warn(dev, "Port event with unrecognized subtype: port %d, sub_type %d\n",
296 port, eqe->sub_type);
300 case MLX5_EVENT_TYPE_CODING_DCBX_CHANGE_EVENT:
301 port = (eqe->data.port.port >> 4) & 0xf;
302 switch (eqe->sub_type) {
303 case MLX5_DCBX_EVENT_SUBTYPE_ERROR_STATE_DCBX:
304 case MLX5_DCBX_EVENT_SUBTYPE_REMOTE_CONFIG_CHANGE:
305 case MLX5_DCBX_EVENT_SUBTYPE_LOCAL_OPER_CHANGE:
306 case MLX5_DCBX_EVENT_SUBTYPE_REMOTE_CONFIG_APP_PRIORITY_CHANGE:
309 dcbx_subevent(eqe->sub_type),
314 "dcbx event with unrecognized subtype: port %d, sub_type %d\n",
315 port, eqe->sub_type);
319 case MLX5_EVENT_TYPE_CODING_GENERAL_NOTIFICATION_EVENT:
320 mlx5_port_general_notification_event(dev, eqe);
323 case MLX5_EVENT_TYPE_CQ_ERROR:
324 cqn = be32_to_cpu(eqe->data.cq_err.cqn) & 0xffffff;
325 mlx5_core_warn(dev, "CQ error on CQN 0x%x, syndrom 0x%x\n",
326 cqn, eqe->data.cq_err.syndrome);
327 mlx5_cq_event(dev, cqn, eqe->type);
330 case MLX5_EVENT_TYPE_PAGE_REQUEST:
332 u16 func_id = be16_to_cpu(eqe->data.req_pages.func_id);
333 s32 npages = be32_to_cpu(eqe->data.req_pages.num_pages);
335 mlx5_core_dbg(dev, "page request for func 0x%x, npages %d\n",
337 mlx5_core_req_pages_handler(dev, func_id, npages);
341 case MLX5_EVENT_TYPE_CODING_PORT_MODULE_EVENT:
342 mlx5_port_module_event(dev, eqe);
345 case MLX5_EVENT_TYPE_NIC_VPORT_CHANGE:
347 struct mlx5_eqe_vport_change *vc_eqe =
348 &eqe->data.vport_change;
349 u16 vport_num = be16_to_cpu(vc_eqe->vport_num);
353 MLX5_DEV_EVENT_VPORT_CHANGE,
354 (unsigned long)vport_num);
358 case MLX5_EVENT_TYPE_FPGA_ERROR:
359 case MLX5_EVENT_TYPE_FPGA_QP_ERROR:
360 mlx5_fpga_event(dev, eqe->type, &eqe->data.raw);
362 case MLX5_EVENT_TYPE_TEMP_WARN_EVENT:
363 mlx5_temp_warning_event(dev, eqe);
367 mlx5_core_warn(dev, "Unhandled event 0x%x on EQ 0x%x\n",
376 /* The HCA will think the queue has overflowed if we
377 * don't tell it we've been processing events. We
378 * create our EQs with MLX5_NUM_SPARE_EQE extra
379 * entries, so we must update our consumer index at
382 if (unlikely(set_ci >= MLX5_NUM_SPARE_EQE)) {
393 static irqreturn_t mlx5_msix_handler(int irq, void *eq_ptr)
395 struct mlx5_eq *eq = eq_ptr;
396 struct mlx5_core_dev *dev = eq->dev;
398 mlx5_eq_int(dev, eq);
400 /* MSI-X vectors always belong to us */
404 static void init_eq_buf(struct mlx5_eq *eq)
406 struct mlx5_eqe *eqe;
409 for (i = 0; i < eq->nent; i++) {
410 eqe = get_eqe(eq, i);
411 eqe->owner = MLX5_EQE_OWNER_INIT_VAL;
415 int mlx5_create_map_eq(struct mlx5_core_dev *dev, struct mlx5_eq *eq, u8 vecidx,
416 int nent, u64 mask, const char *name, struct mlx5_uar *uar)
418 u32 out[MLX5_ST_SZ_DW(create_eq_out)] = {0};
419 struct mlx5_priv *priv = &dev->priv;
426 eq->nent = roundup_pow_of_two(nent + MLX5_NUM_SPARE_EQE);
428 err = mlx5_buf_alloc(dev, eq->nent * MLX5_EQE_SIZE, 2 * PAGE_SIZE,
435 inlen = MLX5_ST_SZ_BYTES(create_eq_in) +
436 MLX5_FLD_SZ_BYTES(create_eq_in, pas[0]) * eq->buf.npages;
437 in = mlx5_vzalloc(inlen);
443 pas = (__be64 *)MLX5_ADDR_OF(create_eq_in, in, pas);
444 mlx5_fill_page_array(&eq->buf, pas);
446 MLX5_SET(create_eq_in, in, opcode, MLX5_CMD_OP_CREATE_EQ);
447 MLX5_SET64(create_eq_in, in, event_bitmask, mask);
449 eqc = MLX5_ADDR_OF(create_eq_in, in, eq_context_entry);
450 MLX5_SET(eqc, eqc, log_eq_size, ilog2(eq->nent));
451 MLX5_SET(eqc, eqc, uar_page, uar->index);
452 MLX5_SET(eqc, eqc, intr, vecidx);
453 MLX5_SET(eqc, eqc, log_page_size,
454 eq->buf.page_shift - MLX5_ADAPTER_PAGE_SHIFT);
456 err = mlx5_cmd_exec(dev, in, inlen, out, sizeof(out));
460 eq->eqn = MLX5_GET(create_eq_out, out, eq_number);
463 eq->doorbell = uar->map + MLX5_EQ_DOORBEL_OFFSET;
464 snprintf(priv->irq_info[vecidx].name, MLX5_MAX_IRQ_NAME, "%s@pci:%s",
465 name, pci_name(dev->pdev));
466 err = request_irq(priv->msix_arr[vecidx].vector, mlx5_msix_handler, 0,
467 priv->irq_info[vecidx].name, eq);
471 if (vecidx >= MLX5_EQ_VEC_COMP_BASE) {
472 u8 bucket = vecidx - MLX5_EQ_VEC_COMP_BASE;
473 err = bind_irq_to_cpu(priv->msix_arr[vecidx].vector,
474 rss_getcpu(bucket % rss_getnumbuckets()));
484 /* EQs are created in ARMED state
492 free_irq(priv->msix_arr[vecidx].vector, eq);
495 mlx5_cmd_destroy_eq(dev, eq->eqn);
501 mlx5_buf_free(dev, &eq->buf);
504 EXPORT_SYMBOL_GPL(mlx5_create_map_eq);
506 int mlx5_destroy_unmap_eq(struct mlx5_core_dev *dev, struct mlx5_eq *eq)
510 free_irq(dev->priv.msix_arr[eq->irqn].vector, eq);
511 err = mlx5_cmd_destroy_eq(dev, eq->eqn);
513 mlx5_core_warn(dev, "failed to destroy a previously created eq: eqn %d\n",
515 mlx5_buf_free(dev, &eq->buf);
519 EXPORT_SYMBOL_GPL(mlx5_destroy_unmap_eq);
521 int mlx5_eq_init(struct mlx5_core_dev *dev)
525 spin_lock_init(&dev->priv.eq_table.lock);
533 void mlx5_eq_cleanup(struct mlx5_core_dev *dev)
537 int mlx5_start_eqs(struct mlx5_core_dev *dev)
539 struct mlx5_eq_table *table = &dev->priv.eq_table;
540 u64 async_event_mask = MLX5_ASYNC_EVENT_MASK;
543 if (MLX5_CAP_GEN(dev, port_module_event))
544 async_event_mask |= (1ull <<
545 MLX5_EVENT_TYPE_CODING_PORT_MODULE_EVENT);
547 if (MLX5_CAP_GEN(dev, nic_vport_change_event))
548 async_event_mask |= (1ull <<
549 MLX5_EVENT_TYPE_NIC_VPORT_CHANGE);
551 if (MLX5_CAP_GEN(dev, dcbx))
552 async_event_mask |= (1ull <<
553 MLX5_EVENT_TYPE_CODING_DCBX_CHANGE_EVENT);
555 if (MLX5_CAP_GEN(dev, fpga))
556 async_event_mask |= (1ull << MLX5_EVENT_TYPE_FPGA_ERROR) |
557 (1ull << MLX5_EVENT_TYPE_FPGA_QP_ERROR);
559 if (MLX5_CAP_GEN(dev, temp_warn_event))
560 async_event_mask |= (1ull << MLX5_EVENT_TYPE_TEMP_WARN_EVENT);
562 err = mlx5_create_map_eq(dev, &table->cmd_eq, MLX5_EQ_VEC_CMD,
563 MLX5_NUM_CMD_EQE, 1ull << MLX5_EVENT_TYPE_CMD,
564 "mlx5_cmd_eq", &dev->priv.uuari.uars[0]);
566 mlx5_core_warn(dev, "failed to create cmd EQ %d\n", err);
570 mlx5_cmd_use_events(dev);
572 err = mlx5_create_map_eq(dev, &table->async_eq, MLX5_EQ_VEC_ASYNC,
573 MLX5_NUM_ASYNC_EQE, async_event_mask,
574 "mlx5_async_eq", &dev->priv.uuari.uars[0]);
576 mlx5_core_warn(dev, "failed to create async EQ %d\n", err);
580 err = mlx5_create_map_eq(dev, &table->pages_eq,
582 /* TODO: sriov max_vf + */ 1,
583 1 << MLX5_EVENT_TYPE_PAGE_REQUEST, "mlx5_pages_eq",
584 &dev->priv.uuari.uars[0]);
586 mlx5_core_warn(dev, "failed to create pages EQ %d\n", err);
593 mlx5_destroy_unmap_eq(dev, &table->async_eq);
596 mlx5_cmd_use_polling(dev);
597 mlx5_destroy_unmap_eq(dev, &table->cmd_eq);
601 int mlx5_stop_eqs(struct mlx5_core_dev *dev)
603 struct mlx5_eq_table *table = &dev->priv.eq_table;
606 err = mlx5_destroy_unmap_eq(dev, &table->pages_eq);
610 mlx5_destroy_unmap_eq(dev, &table->async_eq);
611 mlx5_cmd_use_polling(dev);
613 err = mlx5_destroy_unmap_eq(dev, &table->cmd_eq);
615 mlx5_cmd_use_events(dev);
620 int mlx5_core_eq_query(struct mlx5_core_dev *dev, struct mlx5_eq *eq,
621 u32 *out, int outlen)
623 u32 in[MLX5_ST_SZ_DW(query_eq_in)] = {0};
625 memset(out, 0, outlen);
626 MLX5_SET(query_eq_in, in, opcode, MLX5_CMD_OP_QUERY_EQ);
627 MLX5_SET(query_eq_in, in, eq_number, eq->eqn);
629 return mlx5_cmd_exec(dev, in, sizeof(in), out, outlen);
631 EXPORT_SYMBOL_GPL(mlx5_core_eq_query);
633 static const char *mlx5_port_module_event_error_type_to_string(u8 error_type)
635 switch (error_type) {
636 case MLX5_MODULE_EVENT_ERROR_POWER_BUDGET_EXCEEDED:
637 return "Power Budget Exceeded";
638 case MLX5_MODULE_EVENT_ERROR_LONG_RANGE_FOR_NON_MLNX_CABLE_MODULE:
639 return "Long Range for non MLNX cable/module";
640 case MLX5_MODULE_EVENT_ERROR_BUS_STUCK:
641 return "Bus stuck(I2C or data shorted)";
642 case MLX5_MODULE_EVENT_ERROR_NO_EEPROM_RETRY_TIMEOUT:
643 return "No EEPROM/retry timeout";
644 case MLX5_MODULE_EVENT_ERROR_ENFORCE_PART_NUMBER_LIST:
645 return "Enforce part number list";
646 case MLX5_MODULE_EVENT_ERROR_UNSUPPORTED_CABLE:
647 return "Unsupported Cable";
648 case MLX5_MODULE_EVENT_ERROR_HIGH_TEMPERATURE:
649 return "High Temperature";
650 case MLX5_MODULE_EVENT_ERROR_CABLE_IS_SHORTED:
651 return "Cable is shorted";
652 case MLX5_MODULE_EVENT_ERROR_PCIE_SYSTEM_POWER_SLOT_EXCEEDED:
653 return "One or more network ports have been powered "
654 "down due to insufficient/unadvertised power on "
655 "the PCIe slot. Please refer to the card's user "
656 "manual for power specifications or contact "
660 return "Unknown error type";
664 unsigned int mlx5_query_module_status(struct mlx5_core_dev *dev, int module_num)
666 if (module_num < 0 || module_num >= MLX5_MAX_PORTS)
667 return 0; /* undefined */
668 return dev->module_status[module_num];
671 static void mlx5_port_module_event(struct mlx5_core_dev *dev,
672 struct mlx5_eqe *eqe)
674 unsigned int module_num;
675 unsigned int module_status;
676 unsigned int error_type;
677 struct mlx5_eqe_port_module_event *module_event_eqe;
678 struct pci_dev *pdev = dev->pdev;
680 module_event_eqe = &eqe->data.port_module_event;
682 module_num = (unsigned int)module_event_eqe->module;
683 module_status = (unsigned int)module_event_eqe->module_status &
684 PORT_MODULE_EVENT_MODULE_STATUS_MASK;
685 error_type = (unsigned int)module_event_eqe->error_type &
686 PORT_MODULE_EVENT_ERROR_TYPE_MASK;
688 switch (module_status) {
689 case MLX5_MODULE_STATUS_PLUGGED_ENABLED:
690 device_printf((&pdev->dev)->bsddev, "INFO: ""Module %u, status: plugged and enabled\n", module_num);
693 case MLX5_MODULE_STATUS_UNPLUGGED:
694 device_printf((&pdev->dev)->bsddev, "INFO: ""Module %u, status: unplugged\n", module_num);
697 case MLX5_MODULE_STATUS_ERROR:
698 device_printf((&pdev->dev)->bsddev, "INFO: ""Module %u, status: error, %s\n", module_num, mlx5_port_module_event_error_type_to_string(error_type));
701 case MLX5_MODULE_STATUS_PLUGGED_DISABLED:
702 device_printf((&pdev->dev)->bsddev, "INFO: ""Module %u, status: plugged but disabled\n", module_num);
706 device_printf((&pdev->dev)->bsddev, "INFO: ""Module %u, unknown status\n", module_num);
708 /* store module status */
709 if (module_num < MLX5_MAX_PORTS)
710 dev->module_status[module_num] = module_status;
713 static void mlx5_port_general_notification_event(struct mlx5_core_dev *dev,
714 struct mlx5_eqe *eqe)
716 u8 port = (eqe->data.port.port >> 4) & 0xf;
718 struct mlx5_eqe_general_notification_event *general_event = NULL;
720 switch (eqe->sub_type) {
721 case MLX5_GEN_EVENT_SUBTYPE_DELAY_DROP_TIMEOUT:
722 general_event = &eqe->data.general_notifications;
723 rqn = be32_to_cpu(general_event->rq_user_index_delay_drop) &
728 "general event with unrecognized subtype: port %d, sub_type %d\n",
729 port, eqe->sub_type);