~ljy/RK356X_SDK_RELEASE.git

..	..	@@ -31,20 +31,22 @@
31	31	*/
32	32
33	33	#include <linux/interrupt.h>
	34	+#include <linux/notifier.h>
34	35	#include <linux/module.h>
35	36	#include <linux/mlx5/driver.h>
36		-#include <linux/mlx5/cmd.h>
	37	+#include <linux/mlx5/vport.h>
	38	+#include <linux/mlx5/eq.h>
37	39	#ifdef CONFIG_RFS_ACCEL
38	40	#include <linux/cpu_rmap.h>
39	41	#endif
40	42	#include "mlx5_core.h"
	43	+#include "lib/eq.h"
41	44	#include "fpga/core.h"
42	45	#include "eswitch.h"
43	46	#include "lib/clock.h"
44	47	#include "diag/fw_tracer.h"
45	48
46	49	enum {
47		- MLX5_EQE_SIZE = sizeof(struct mlx5_eqe),
48	50	MLX5_EQE_OWNER_INIT_VAL = 0x1,
49	51	};
50	52
..	..	@@ -55,14 +57,33 @@
55	57	};
56	58
57	59	enum {
58		- MLX5_NUM_SPARE_EQE = 0x80,
59		- MLX5_NUM_ASYNC_EQE = 0x1000,
60		- MLX5_NUM_CMD_EQE = 32,
61		- MLX5_NUM_PF_DRAIN = 64,
	60	+ MLX5_EQ_DOORBEL_OFFSET = 0x40,
62	61	};
63	62
	63	+/* budget must be smaller than MLX5_NUM_SPARE_EQE to guarantee that we update
	64	+ * the ci before we polled all the entries in the EQ. MLX5_NUM_SPARE_EQE is
	65	+ * used to set the EQ size, budget must be smaller than the EQ size.
	66	+ */
64	67	enum {
65		- MLX5_EQ_DOORBEL_OFFSET = 0x40,
	68	+ MLX5_EQ_POLLING_BUDGET = 128,
	69	+};
	70	+
	71	+static_assert(MLX5_EQ_POLLING_BUDGET <= MLX5_NUM_SPARE_EQE);
	72	+
	73	+struct mlx5_eq_table {
	74	+ struct list_head comp_eqs_list;
	75	+ struct mlx5_eq_async pages_eq;
	76	+ struct mlx5_eq_async cmd_eq;
	77	+ struct mlx5_eq_async async_eq;
	78	+
	79	+ struct atomic_notifier_head nh[MLX5_EVENT_TYPE_MAX];
	80	+
	81	+ /* Since CQ DB is stored in async_eq */
	82	+ struct mlx5_nb cq_err_nb;
	83	+
	84	+ struct mutex lock; /* sync async eqs creations */
	85	+ int num_comp_eqs;
	86	+ struct mlx5_irq_table *irq_table;
66	87	};
67	88
68	89	#define MLX5_ASYNC_EVENT_MASK ((1ull << MLX5_EVENT_TYPE_PATH_MIG) \| \
..	..	@@ -78,344 +99,13 @@
78	99	(1ull << MLX5_EVENT_TYPE_SRQ_LAST_WQE) \| \
79	100	(1ull << MLX5_EVENT_TYPE_SRQ_RQ_LIMIT))
80	101
81		-struct map_eq_in {
82		- u64 mask;
83		- u32 reserved;
84		- u32 unmap_eqn;
85		-};
86		-
87		-struct cre_des_eq {
88		- u8 reserved[15];
89		- u8 eqn;
90		-};
91		-
92	102	static int mlx5_cmd_destroy_eq(struct mlx5_core_dev *dev, u8 eqn)
93	103	{
94		- u32 out[MLX5_ST_SZ_DW(destroy_eq_out)] = {0};
95		- u32 in[MLX5_ST_SZ_DW(destroy_eq_in)] = {0};
	104	+ u32 in[MLX5_ST_SZ_DW(destroy_eq_in)] = {};
96	105
97	106	MLX5_SET(destroy_eq_in, in, opcode, MLX5_CMD_OP_DESTROY_EQ);
98	107	MLX5_SET(destroy_eq_in, in, eq_number, eqn);
99		- return mlx5_cmd_exec(dev, in, sizeof(in), out, sizeof(out));
100		-}
101		-
102		-static struct mlx5_eqe get_eqe(struct mlx5_eq eq, u32 entry)
103		-{
104		- return mlx5_buf_offset(&eq->buf, entry * MLX5_EQE_SIZE);
105		-}
106		-
107		-static struct mlx5_eqe next_eqe_sw(struct mlx5_eq eq)
108		-{
109		- struct mlx5_eqe *eqe = get_eqe(eq, eq->cons_index & (eq->nent - 1));
110		-
111		- return ((eqe->owner & 1) ^ !!(eq->cons_index & eq->nent)) ? NULL : eqe;
112		-}
113		-
114		-static const char *eqe_type_str(u8 type)
115		-{
116		- switch (type) {
117		- case MLX5_EVENT_TYPE_COMP:
118		- return "MLX5_EVENT_TYPE_COMP";
119		- case MLX5_EVENT_TYPE_PATH_MIG:
120		- return "MLX5_EVENT_TYPE_PATH_MIG";
121		- case MLX5_EVENT_TYPE_COMM_EST:
122		- return "MLX5_EVENT_TYPE_COMM_EST";
123		- case MLX5_EVENT_TYPE_SQ_DRAINED:
124		- return "MLX5_EVENT_TYPE_SQ_DRAINED";
125		- case MLX5_EVENT_TYPE_SRQ_LAST_WQE:
126		- return "MLX5_EVENT_TYPE_SRQ_LAST_WQE";
127		- case MLX5_EVENT_TYPE_SRQ_RQ_LIMIT:
128		- return "MLX5_EVENT_TYPE_SRQ_RQ_LIMIT";
129		- case MLX5_EVENT_TYPE_CQ_ERROR:
130		- return "MLX5_EVENT_TYPE_CQ_ERROR";
131		- case MLX5_EVENT_TYPE_WQ_CATAS_ERROR:
132		- return "MLX5_EVENT_TYPE_WQ_CATAS_ERROR";
133		- case MLX5_EVENT_TYPE_PATH_MIG_FAILED:
134		- return "MLX5_EVENT_TYPE_PATH_MIG_FAILED";
135		- case MLX5_EVENT_TYPE_WQ_INVAL_REQ_ERROR:
136		- return "MLX5_EVENT_TYPE_WQ_INVAL_REQ_ERROR";
137		- case MLX5_EVENT_TYPE_WQ_ACCESS_ERROR:
138		- return "MLX5_EVENT_TYPE_WQ_ACCESS_ERROR";
139		- case MLX5_EVENT_TYPE_SRQ_CATAS_ERROR:
140		- return "MLX5_EVENT_TYPE_SRQ_CATAS_ERROR";
141		- case MLX5_EVENT_TYPE_INTERNAL_ERROR:
142		- return "MLX5_EVENT_TYPE_INTERNAL_ERROR";
143		- case MLX5_EVENT_TYPE_PORT_CHANGE:
144		- return "MLX5_EVENT_TYPE_PORT_CHANGE";
145		- case MLX5_EVENT_TYPE_GPIO_EVENT:
146		- return "MLX5_EVENT_TYPE_GPIO_EVENT";
147		- case MLX5_EVENT_TYPE_PORT_MODULE_EVENT:
148		- return "MLX5_EVENT_TYPE_PORT_MODULE_EVENT";
149		- case MLX5_EVENT_TYPE_TEMP_WARN_EVENT:
150		- return "MLX5_EVENT_TYPE_TEMP_WARN_EVENT";
151		- case MLX5_EVENT_TYPE_REMOTE_CONFIG:
152		- return "MLX5_EVENT_TYPE_REMOTE_CONFIG";
153		- case MLX5_EVENT_TYPE_DB_BF_CONGESTION:
154		- return "MLX5_EVENT_TYPE_DB_BF_CONGESTION";
155		- case MLX5_EVENT_TYPE_STALL_EVENT:
156		- return "MLX5_EVENT_TYPE_STALL_EVENT";
157		- case MLX5_EVENT_TYPE_CMD:
158		- return "MLX5_EVENT_TYPE_CMD";
159		- case MLX5_EVENT_TYPE_PAGE_REQUEST:
160		- return "MLX5_EVENT_TYPE_PAGE_REQUEST";
161		- case MLX5_EVENT_TYPE_PAGE_FAULT:
162		- return "MLX5_EVENT_TYPE_PAGE_FAULT";
163		- case MLX5_EVENT_TYPE_PPS_EVENT:
164		- return "MLX5_EVENT_TYPE_PPS_EVENT";
165		- case MLX5_EVENT_TYPE_NIC_VPORT_CHANGE:
166		- return "MLX5_EVENT_TYPE_NIC_VPORT_CHANGE";
167		- case MLX5_EVENT_TYPE_FPGA_ERROR:
168		- return "MLX5_EVENT_TYPE_FPGA_ERROR";
169		- case MLX5_EVENT_TYPE_FPGA_QP_ERROR:
170		- return "MLX5_EVENT_TYPE_FPGA_QP_ERROR";
171		- case MLX5_EVENT_TYPE_GENERAL_EVENT:
172		- return "MLX5_EVENT_TYPE_GENERAL_EVENT";
173		- case MLX5_EVENT_TYPE_DEVICE_TRACER:
174		- return "MLX5_EVENT_TYPE_DEVICE_TRACER";
175		- default:
176		- return "Unrecognized event";
177		- }
178		-}
179		-
180		-static enum mlx5_dev_event port_subtype_event(u8 subtype)
181		-{
182		- switch (subtype) {
183		- case MLX5_PORT_CHANGE_SUBTYPE_DOWN:
184		- return MLX5_DEV_EVENT_PORT_DOWN;
185		- case MLX5_PORT_CHANGE_SUBTYPE_ACTIVE:
186		- return MLX5_DEV_EVENT_PORT_UP;
187		- case MLX5_PORT_CHANGE_SUBTYPE_INITIALIZED:
188		- return MLX5_DEV_EVENT_PORT_INITIALIZED;
189		- case MLX5_PORT_CHANGE_SUBTYPE_LID:
190		- return MLX5_DEV_EVENT_LID_CHANGE;
191		- case MLX5_PORT_CHANGE_SUBTYPE_PKEY:
192		- return MLX5_DEV_EVENT_PKEY_CHANGE;
193		- case MLX5_PORT_CHANGE_SUBTYPE_GUID:
194		- return MLX5_DEV_EVENT_GUID_CHANGE;
195		- case MLX5_PORT_CHANGE_SUBTYPE_CLIENT_REREG:
196		- return MLX5_DEV_EVENT_CLIENT_REREG;
197		- }
198		- return -1;
199		-}
200		-
201		-static void eq_update_ci(struct mlx5_eq *eq, int arm)
202		-{
203		- __be32 __iomem *addr = eq->doorbell + (arm ? 0 : 2);
204		- u32 val = (eq->cons_index & 0xffffff) \| (eq->eqn << 24);
205		-
206		- __raw_writel((__force u32)cpu_to_be32(val), addr);
207		- /* We still want ordering, just not swabbing, so add a barrier */
208		- mb();
209		-}
210		-
211		-#ifdef CONFIG_INFINIBAND_ON_DEMAND_PAGING
212		-static void eqe_pf_action(struct work_struct *work)
213		-{
214		- struct mlx5_pagefault *pfault = container_of(work,
215		- struct mlx5_pagefault,
216		- work);
217		- struct mlx5_eq *eq = pfault->eq;
218		-
219		- mlx5_core_page_fault(eq->dev, pfault);
220		- mempool_free(pfault, eq->pf_ctx.pool);
221		-}
222		-
223		-static void eq_pf_process(struct mlx5_eq *eq)
224		-{
225		- struct mlx5_core_dev *dev = eq->dev;
226		- struct mlx5_eqe_page_fault *pf_eqe;
227		- struct mlx5_pagefault *pfault;
228		- struct mlx5_eqe *eqe;
229		- int set_ci = 0;
230		-
231		- while ((eqe = next_eqe_sw(eq))) {
232		- pfault = mempool_alloc(eq->pf_ctx.pool, GFP_ATOMIC);
233		- if (!pfault) {
234		- schedule_work(&eq->pf_ctx.work);
235		- break;
236		- }
237		-
238		- dma_rmb();
239		- pf_eqe = &eqe->data.page_fault;
240		- pfault->event_subtype = eqe->sub_type;
241		- pfault->bytes_committed = be32_to_cpu(pf_eqe->bytes_committed);
242		-
243		- mlx5_core_dbg(dev,
244		- "PAGE_FAULT: subtype: 0x%02x, bytes_committed: 0x%06x\n",
245		- eqe->sub_type, pfault->bytes_committed);
246		-
247		- switch (eqe->sub_type) {
248		- case MLX5_PFAULT_SUBTYPE_RDMA:
249		- /* RDMA based event */
250		- pfault->type =
251		- be32_to_cpu(pf_eqe->rdma.pftype_token) >> 24;
252		- pfault->token =
253		- be32_to_cpu(pf_eqe->rdma.pftype_token) &
254		- MLX5_24BIT_MASK;
255		- pfault->rdma.r_key =
256		- be32_to_cpu(pf_eqe->rdma.r_key);
257		- pfault->rdma.packet_size =
258		- be16_to_cpu(pf_eqe->rdma.packet_length);
259		- pfault->rdma.rdma_op_len =
260		- be32_to_cpu(pf_eqe->rdma.rdma_op_len);
261		- pfault->rdma.rdma_va =
262		- be64_to_cpu(pf_eqe->rdma.rdma_va);
263		- mlx5_core_dbg(dev,
264		- "PAGE_FAULT: type:0x%x, token: 0x%06x, r_key: 0x%08x\n",
265		- pfault->type, pfault->token,
266		- pfault->rdma.r_key);
267		- mlx5_core_dbg(dev,
268		- "PAGE_FAULT: rdma_op_len: 0x%08x, rdma_va: 0x%016llx\n",
269		- pfault->rdma.rdma_op_len,
270		- pfault->rdma.rdma_va);
271		- break;
272		-
273		- case MLX5_PFAULT_SUBTYPE_WQE:
274		- /* WQE based event */
275		- pfault->type =
276		- (be32_to_cpu(pf_eqe->wqe.pftype_wq) >> 24) & 0x7;
277		- pfault->token =
278		- be32_to_cpu(pf_eqe->wqe.token);
279		- pfault->wqe.wq_num =
280		- be32_to_cpu(pf_eqe->wqe.pftype_wq) &
281		- MLX5_24BIT_MASK;
282		- pfault->wqe.wqe_index =
283		- be16_to_cpu(pf_eqe->wqe.wqe_index);
284		- pfault->wqe.packet_size =
285		- be16_to_cpu(pf_eqe->wqe.packet_length);
286		- mlx5_core_dbg(dev,
287		- "PAGE_FAULT: type:0x%x, token: 0x%06x, wq_num: 0x%06x, wqe_index: 0x%04x\n",
288		- pfault->type, pfault->token,
289		- pfault->wqe.wq_num,
290		- pfault->wqe.wqe_index);
291		- break;
292		-
293		- default:
294		- mlx5_core_warn(dev,
295		- "Unsupported page fault event sub-type: 0x%02hhx\n",
296		- eqe->sub_type);
297		- /* Unsupported page faults should still be
298		- * resolved by the page fault handler
299		- */
300		- }
301		-
302		- pfault->eq = eq;
303		- INIT_WORK(&pfault->work, eqe_pf_action);
304		- queue_work(eq->pf_ctx.wq, &pfault->work);
305		-
306		- ++eq->cons_index;
307		- ++set_ci;
308		-
309		- if (unlikely(set_ci >= MLX5_NUM_SPARE_EQE)) {
310		- eq_update_ci(eq, 0);
311		- set_ci = 0;
312		- }
313		- }
314		-
315		- eq_update_ci(eq, 1);
316		-}
317		-
318		-static irqreturn_t mlx5_eq_pf_int(int irq, void *eq_ptr)
319		-{
320		- struct mlx5_eq *eq = eq_ptr;
321		- unsigned long flags;
322		-
323		- if (spin_trylock_irqsave(&eq->pf_ctx.lock, flags)) {
324		- eq_pf_process(eq);
325		- spin_unlock_irqrestore(&eq->pf_ctx.lock, flags);
326		- } else {
327		- schedule_work(&eq->pf_ctx.work);
328		- }
329		-
330		- return IRQ_HANDLED;
331		-}
332		-
333		-/* mempool_refill() was proposed but unfortunately wasn't accepted
334		- * http://lkml.iu.edu/hypermail/linux/kernel/1512.1/05073.html
335		- * Chip workaround.
336		- */
337		-static void mempool_refill(mempool_t *pool)
338		-{
339		- while (pool->curr_nr < pool->min_nr)
340		- mempool_free(mempool_alloc(pool, GFP_KERNEL), pool);
341		-}
342		-
343		-static void eq_pf_action(struct work_struct *work)
344		-{
345		- struct mlx5_eq *eq = container_of(work, struct mlx5_eq, pf_ctx.work);
346		-
347		- mempool_refill(eq->pf_ctx.pool);
348		-
349		- spin_lock_irq(&eq->pf_ctx.lock);
350		- eq_pf_process(eq);
351		- spin_unlock_irq(&eq->pf_ctx.lock);
352		-}
353		-
354		-static int init_pf_ctx(struct mlx5_eq_pagefault pf_ctx, const char name)
355		-{
356		- spin_lock_init(&pf_ctx->lock);
357		- INIT_WORK(&pf_ctx->work, eq_pf_action);
358		-
359		- pf_ctx->wq = alloc_ordered_workqueue(name,
360		- WQ_MEM_RECLAIM);
361		- if (!pf_ctx->wq)
362		- return -ENOMEM;
363		-
364		- pf_ctx->pool = mempool_create_kmalloc_pool
365		- (MLX5_NUM_PF_DRAIN, sizeof(struct mlx5_pagefault));
366		- if (!pf_ctx->pool)
367		- goto err_wq;
368		-
369		- return 0;
370		-err_wq:
371		- destroy_workqueue(pf_ctx->wq);
372		- return -ENOMEM;
373		-}
374		-
375		-int mlx5_core_page_fault_resume(struct mlx5_core_dev *dev, u32 token,
376		- u32 wq_num, u8 type, int error)
377		-{
378		- u32 out[MLX5_ST_SZ_DW(page_fault_resume_out)] = {0};
379		- u32 in[MLX5_ST_SZ_DW(page_fault_resume_in)] = {0};
380		-
381		- MLX5_SET(page_fault_resume_in, in, opcode,
382		- MLX5_CMD_OP_PAGE_FAULT_RESUME);
383		- MLX5_SET(page_fault_resume_in, in, error, !!error);
384		- MLX5_SET(page_fault_resume_in, in, page_fault_type, type);
385		- MLX5_SET(page_fault_resume_in, in, wq_number, wq_num);
386		- MLX5_SET(page_fault_resume_in, in, token, token);
387		-
388		- return mlx5_cmd_exec(dev, in, sizeof(in), out, sizeof(out));
389		-}
390		-EXPORT_SYMBOL_GPL(mlx5_core_page_fault_resume);
391		-#endif
392		-
393		-static void general_event_handler(struct mlx5_core_dev *dev,
394		- struct mlx5_eqe *eqe)
395		-{
396		- switch (eqe->sub_type) {
397		- case MLX5_GENERAL_SUBTYPE_DELAY_DROP_TIMEOUT:
398		- if (dev->event)
399		- dev->event(dev, MLX5_DEV_EVENT_DELAY_DROP_TIMEOUT, 0);
400		- break;
401		- default:
402		- mlx5_core_dbg(dev, "General event with unrecognized subtype: sub_type %d\n",
403		- eqe->sub_type);
404		- }
405		-}
406		-
407		-static void mlx5_temp_warning_event(struct mlx5_core_dev *dev,
408		- struct mlx5_eqe *eqe)
409		-{
410		- u64 value_lsb;
411		- u64 value_msb;
412		-
413		- value_lsb = be64_to_cpu(eqe->data.temp_warning.sensor_warning_lsb);
414		- value_msb = be64_to_cpu(eqe->data.temp_warning.sensor_warning_msb);
415		-
416		- mlx5_core_warn(dev,
417		- "High temperature on sensors with bit set %llx %llx",
418		- value_msb, value_lsb);
	108	+ return mlx5_cmd_exec_in(dev, destroy_eq, in);
419	109	}
420	110
421	111	/* caller must eventually call mlx5_cq_put on the returned cq */
..	..	@@ -424,194 +114,61 @@
424	114	struct mlx5_cq_table *table = &eq->cq_table;
425	115	struct mlx5_core_cq *cq = NULL;
426	116
427		- spin_lock(&table->lock);
	117	+ rcu_read_lock();
428	118	cq = radix_tree_lookup(&table->tree, cqn);
429	119	if (likely(cq))
430	120	mlx5_cq_hold(cq);
431		- spin_unlock(&table->lock);
	121	+ rcu_read_unlock();
432	122
433	123	return cq;
434	124	}
435	125
436		-static void mlx5_eq_cq_completion(struct mlx5_eq *eq, u32 cqn)
	126	+static int mlx5_eq_comp_int(struct notifier_block *nb,
	127	+ __always_unused unsigned long action,
	128	+ __always_unused void *data)
437	129	{
438		- struct mlx5_core_cq *cq = mlx5_eq_cq_get(eq, cqn);
439		-
440		- if (unlikely(!cq)) {
441		- mlx5_core_warn(eq->dev, "Completion event for bogus CQ 0x%x\n", cqn);
442		- return;
443		- }
444		-
445		- ++cq->arm_sn;
446		-
447		- cq->comp(cq);
448		-
449		- mlx5_cq_put(cq);
450		-}
451		-
452		-static void mlx5_eq_cq_event(struct mlx5_eq *eq, u32 cqn, int event_type)
453		-{
454		- struct mlx5_core_cq *cq = mlx5_eq_cq_get(eq, cqn);
455		-
456		- if (unlikely(!cq)) {
457		- mlx5_core_warn(eq->dev, "Async event for bogus CQ 0x%x\n", cqn);
458		- return;
459		- }
460		-
461		- cq->event(cq, event_type);
462		-
463		- mlx5_cq_put(cq);
464		-}
465		-
466		-static irqreturn_t mlx5_eq_int(int irq, void *eq_ptr)
467		-{
468		- struct mlx5_eq *eq = eq_ptr;
469		- struct mlx5_core_dev *dev = eq->dev;
	130	+ struct mlx5_eq_comp *eq_comp =
	131	+ container_of(nb, struct mlx5_eq_comp, irq_nb);
	132	+ struct mlx5_eq *eq = &eq_comp->core;
470	133	struct mlx5_eqe *eqe;
471		- int set_ci = 0;
	134	+ int num_eqes = 0;
472	135	u32 cqn = -1;
473		- u32 rsn;
474		- u8 port;
475	136
476		- while ((eqe = next_eqe_sw(eq))) {
477		- /*
478		- * Make sure we read EQ entry contents after we've
	137	+ eqe = next_eqe_sw(eq);
	138	+ if (!eqe)
	139	+ goto out;
	140	+
	141	+ do {
	142	+ struct mlx5_core_cq *cq;
	143	+
	144	+ /* Make sure we read EQ entry contents after we've
479	145	* checked the ownership bit.
480	146	*/
481	147	dma_rmb();
	148	+ /* Assume (eqe->type) is always MLX5_EVENT_TYPE_COMP */
	149	+ cqn = be32_to_cpu(eqe->data.comp.cqn) & 0xffffff;
482	150
483		- mlx5_core_dbg(eq->dev, "eqn %d, eqe type %s\n",
484		- eq->eqn, eqe_type_str(eqe->type));
485		- switch (eqe->type) {
486		- case MLX5_EVENT_TYPE_COMP:
487		- cqn = be32_to_cpu(eqe->data.comp.cqn) & 0xffffff;
488		- mlx5_eq_cq_completion(eq, cqn);
489		- break;
490		- case MLX5_EVENT_TYPE_DCT_DRAINED:
491		- rsn = be32_to_cpu(eqe->data.dct.dctn) & 0xffffff;
492		- rsn \|= (MLX5_RES_DCT << MLX5_USER_INDEX_LEN);
493		- mlx5_rsc_event(dev, rsn, eqe->type);
494		- break;
495		- case MLX5_EVENT_TYPE_PATH_MIG:
496		- case MLX5_EVENT_TYPE_COMM_EST:
497		- case MLX5_EVENT_TYPE_SQ_DRAINED:
498		- case MLX5_EVENT_TYPE_SRQ_LAST_WQE:
499		- case MLX5_EVENT_TYPE_WQ_CATAS_ERROR:
500		- case MLX5_EVENT_TYPE_PATH_MIG_FAILED:
501		- case MLX5_EVENT_TYPE_WQ_INVAL_REQ_ERROR:
502		- case MLX5_EVENT_TYPE_WQ_ACCESS_ERROR:
503		- rsn = be32_to_cpu(eqe->data.qp_srq.qp_srq_n) & 0xffffff;
504		- rsn \|= (eqe->data.qp_srq.type << MLX5_USER_INDEX_LEN);
505		- mlx5_core_dbg(dev, "event %s(%d) arrived on resource 0x%x\n",
506		- eqe_type_str(eqe->type), eqe->type, rsn);
507		- mlx5_rsc_event(dev, rsn, eqe->type);
508		- break;
509		-
510		- case MLX5_EVENT_TYPE_SRQ_RQ_LIMIT:
511		- case MLX5_EVENT_TYPE_SRQ_CATAS_ERROR:
512		- rsn = be32_to_cpu(eqe->data.qp_srq.qp_srq_n) & 0xffffff;
513		- mlx5_core_dbg(dev, "SRQ event %s(%d): srqn 0x%x\n",
514		- eqe_type_str(eqe->type), eqe->type, rsn);
515		- mlx5_srq_event(dev, rsn, eqe->type);
516		- break;
517		-
518		- case MLX5_EVENT_TYPE_CMD:
519		- mlx5_cmd_comp_handler(dev, be32_to_cpu(eqe->data.cmd.vector), false);
520		- break;
521		-
522		- case MLX5_EVENT_TYPE_PORT_CHANGE:
523		- port = (eqe->data.port.port >> 4) & 0xf;
524		- switch (eqe->sub_type) {
525		- case MLX5_PORT_CHANGE_SUBTYPE_DOWN:
526		- case MLX5_PORT_CHANGE_SUBTYPE_ACTIVE:
527		- case MLX5_PORT_CHANGE_SUBTYPE_LID:
528		- case MLX5_PORT_CHANGE_SUBTYPE_PKEY:
529		- case MLX5_PORT_CHANGE_SUBTYPE_GUID:
530		- case MLX5_PORT_CHANGE_SUBTYPE_CLIENT_REREG:
531		- case MLX5_PORT_CHANGE_SUBTYPE_INITIALIZED:
532		- if (dev->event)
533		- dev->event(dev, port_subtype_event(eqe->sub_type),
534		- (unsigned long)port);
535		- break;
536		- default:
537		- mlx5_core_warn(dev, "Port event with unrecognized subtype: port %d, sub_type %d\n",
538		- port, eqe->sub_type);
539		- }
540		- break;
541		- case MLX5_EVENT_TYPE_CQ_ERROR:
542		- cqn = be32_to_cpu(eqe->data.cq_err.cqn) & 0xffffff;
543		- mlx5_core_warn(dev, "CQ error on CQN 0x%x, syndrome 0x%x\n",
544		- cqn, eqe->data.cq_err.syndrome);
545		- mlx5_eq_cq_event(eq, cqn, eqe->type);
546		- break;
547		-
548		- case MLX5_EVENT_TYPE_PAGE_REQUEST:
549		- {
550		- u16 func_id = be16_to_cpu(eqe->data.req_pages.func_id);
551		- s32 npages = be32_to_cpu(eqe->data.req_pages.num_pages);
552		-
553		- mlx5_core_dbg(dev, "page request for func 0x%x, npages %d\n",
554		- func_id, npages);
555		- mlx5_core_req_pages_handler(dev, func_id, npages);
556		- }
557		- break;
558		-
559		- case MLX5_EVENT_TYPE_NIC_VPORT_CHANGE:
560		- mlx5_eswitch_vport_event(dev->priv.eswitch, eqe);
561		- break;
562		-
563		- case MLX5_EVENT_TYPE_PORT_MODULE_EVENT:
564		- mlx5_port_module_event(dev, eqe);
565		- break;
566		-
567		- case MLX5_EVENT_TYPE_PPS_EVENT:
568		- mlx5_pps_event(dev, eqe);
569		- break;
570		-
571		- case MLX5_EVENT_TYPE_FPGA_ERROR:
572		- case MLX5_EVENT_TYPE_FPGA_QP_ERROR:
573		- mlx5_fpga_event(dev, eqe->type, &eqe->data.raw);
574		- break;
575		-
576		- case MLX5_EVENT_TYPE_TEMP_WARN_EVENT:
577		- mlx5_temp_warning_event(dev, eqe);
578		- break;
579		-
580		- case MLX5_EVENT_TYPE_GENERAL_EVENT:
581		- general_event_handler(dev, eqe);
582		- break;
583		-
584		- case MLX5_EVENT_TYPE_DEVICE_TRACER:
585		- mlx5_fw_tracer_event(dev, eqe);
586		- break;
587		-
588		- default:
589		- mlx5_core_warn(dev, "Unhandled event 0x%x on EQ 0x%x\n",
590		- eqe->type, eq->eqn);
591		- break;
	151	+ cq = mlx5_eq_cq_get(eq, cqn);
	152	+ if (likely(cq)) {
	153	+ ++cq->arm_sn;
	154	+ cq->comp(cq, eqe);
	155	+ mlx5_cq_put(cq);
	156	+ } else {
	157	+ dev_dbg_ratelimited(eq->dev->device,
	158	+ "Completion event for bogus CQ 0x%x\n", cqn);
592	159	}
593	160
594	161	++eq->cons_index;
595		- ++set_ci;
596	162
597		- /* The HCA will think the queue has overflowed if we
598		- * don't tell it we've been processing events. We
599		- * create our EQs with MLX5_NUM_SPARE_EQE extra
600		- * entries, so we must update our consumer index at
601		- * least that often.
602		- */
603		- if (unlikely(set_ci >= MLX5_NUM_SPARE_EQE)) {
604		- eq_update_ci(eq, 0);
605		- set_ci = 0;
606		- }
607		- }
	163	+ } while ((++num_eqes < MLX5_EQ_POLLING_BUDGET) && (eqe = next_eqe_sw(eq)));
608	164
	165	+out:
609	166	eq_update_ci(eq, 1);
610	167
611	168	if (cqn != -1)
612		- tasklet_schedule(&eq->tasklet_ctx.task);
	169	+ tasklet_schedule(&eq_comp->tasklet_ctx.task);
613	170
614		- return IRQ_HANDLED;
	171	+ return 0;
615	172	}
616	173
617	174	/* Some architectures don't latch interrupts when they are disabled, so using
..	..	@@ -619,17 +176,92 @@
619	176	* avoid losing them. It is not recommended to use it, unless this is the last
620	177	* resort.
621	178	*/
622		-u32 mlx5_eq_poll_irq_disabled(struct mlx5_eq *eq)
	179	+u32 mlx5_eq_poll_irq_disabled(struct mlx5_eq_comp *eq)
623	180	{
624	181	u32 count_eqe;
625	182
626		- disable_irq(eq->irqn);
627		- count_eqe = eq->cons_index;
628		- mlx5_eq_int(eq->irqn, eq);
629		- count_eqe = eq->cons_index - count_eqe;
630		- enable_irq(eq->irqn);
	183	+ disable_irq(eq->core.irqn);
	184	+ count_eqe = eq->core.cons_index;
	185	+ mlx5_eq_comp_int(&eq->irq_nb, 0, NULL);
	186	+ count_eqe = eq->core.cons_index - count_eqe;
	187	+ enable_irq(eq->core.irqn);
631	188
632	189	return count_eqe;
	190	+}
	191	+
	192	+static void mlx5_eq_async_int_lock(struct mlx5_eq_async eq, unsigned long flags)
	193	+ __acquires(&eq->lock)
	194	+{
	195	+ if (in_irq())
	196	+ spin_lock(&eq->lock);
	197	+ else
	198	+ spin_lock_irqsave(&eq->lock, *flags);
	199	+}
	200	+
	201	+static void mlx5_eq_async_int_unlock(struct mlx5_eq_async eq, unsigned long flags)
	202	+ __releases(&eq->lock)
	203	+{
	204	+ if (in_irq())
	205	+ spin_unlock(&eq->lock);
	206	+ else
	207	+ spin_unlock_irqrestore(&eq->lock, *flags);
	208	+}
	209	+
	210	+enum async_eq_nb_action {
	211	+ ASYNC_EQ_IRQ_HANDLER = 0,
	212	+ ASYNC_EQ_RECOVER = 1,
	213	+};
	214	+
	215	+static int mlx5_eq_async_int(struct notifier_block *nb,
	216	+ unsigned long action, void *data)
	217	+{
	218	+ struct mlx5_eq_async *eq_async =
	219	+ container_of(nb, struct mlx5_eq_async, irq_nb);
	220	+ struct mlx5_eq *eq = &eq_async->core;
	221	+ struct mlx5_eq_table *eqt;
	222	+ struct mlx5_core_dev *dev;
	223	+ struct mlx5_eqe *eqe;
	224	+ unsigned long flags;
	225	+ int num_eqes = 0;
	226	+
	227	+ dev = eq->dev;
	228	+ eqt = dev->priv.eq_table;
	229	+
	230	+ mlx5_eq_async_int_lock(eq_async, &flags);
	231	+
	232	+ eqe = next_eqe_sw(eq);
	233	+ if (!eqe)
	234	+ goto out;
	235	+
	236	+ do {
	237	+ /*
	238	+ * Make sure we read EQ entry contents after we've
	239	+ * checked the ownership bit.
	240	+ */
	241	+ dma_rmb();
	242	+
	243	+ atomic_notifier_call_chain(&eqt->nh[eqe->type], eqe->type, eqe);
	244	+ atomic_notifier_call_chain(&eqt->nh[MLX5_EVENT_TYPE_NOTIFY_ANY], eqe->type, eqe);
	245	+
	246	+ ++eq->cons_index;
	247	+
	248	+ } while ((++num_eqes < MLX5_EQ_POLLING_BUDGET) && (eqe = next_eqe_sw(eq)));
	249	+
	250	+out:
	251	+ eq_update_ci(eq, 1);
	252	+ mlx5_eq_async_int_unlock(eq_async, &flags);
	253	+
	254	+ return unlikely(action == ASYNC_EQ_RECOVER) ? num_eqes : 0;
	255	+}
	256	+
	257	+void mlx5_cmd_eq_recover(struct mlx5_core_dev *dev)
	258	+{
	259	+ struct mlx5_eq_async *eq = &dev->priv.eq_table->cmd_eq;
	260	+ int eqes;
	261	+
	262	+ eqes = mlx5_eq_async_int(&eq->irq_nb, ASYNC_EQ_RECOVER, NULL);
	263	+ if (eqes)
	264	+ mlx5_core_warn(dev, "Recovered %d EQEs on cmd_eq\n", eqes);
633	265	}
634	266
635	267	static void init_eq_buf(struct mlx5_eq *eq)
..	..	@@ -643,38 +275,31 @@
643	275	}
644	276	}
645	277
646		-int mlx5_create_map_eq(struct mlx5_core_dev dev, struct mlx5_eq eq, u8 vecidx,
647		- int nent, u64 mask, const char *name,
648		- enum mlx5_eq_type type)
	278	+static int
	279	+create_map_eq(struct mlx5_core_dev dev, struct mlx5_eq eq,
	280	+ struct mlx5_eq_param *param)
649	281	{
650	282	struct mlx5_cq_table *cq_table = &eq->cq_table;
651	283	u32 out[MLX5_ST_SZ_DW(create_eq_out)] = {0};
652	284	struct mlx5_priv *priv = &dev->priv;
653		- irq_handler_t handler;
	285	+ u8 vecidx = param->irq_index;
654	286	__be64 *pas;
655	287	void *eqc;
656	288	int inlen;
657	289	u32 *in;
658	290	int err;
	291	+ int i;
659	292
660	293	/* Init CQ table */
661	294	memset(cq_table, 0, sizeof(*cq_table));
662	295	spin_lock_init(&cq_table->lock);
663	296	INIT_RADIX_TREE(&cq_table->tree, GFP_ATOMIC);
664	297
665		- eq->type = type;
666		- eq->nent = roundup_pow_of_two(nent + MLX5_NUM_SPARE_EQE);
	298	+ eq->nent = roundup_pow_of_two(param->nent + MLX5_NUM_SPARE_EQE);
667	299	eq->cons_index = 0;
668	300	err = mlx5_buf_alloc(dev, eq->nent * MLX5_EQE_SIZE, &eq->buf);
669	301	if (err)
670	302	return err;
671		-
672		-#ifdef CONFIG_INFINIBAND_ON_DEMAND_PAGING
673		- if (type == MLX5_EQ_TYPE_PF)
674		- handler = mlx5_eq_pf_int;
675		- else
676		-#endif
677		- handler = mlx5_eq_int;
678	303
679	304	init_eq_buf(eq);
680	305
..	..	@@ -691,7 +316,12 @@
691	316	mlx5_fill_page_array(&eq->buf, pas);
692	317
693	318	MLX5_SET(create_eq_in, in, opcode, MLX5_CMD_OP_CREATE_EQ);
694		- MLX5_SET64(create_eq_in, in, event_bitmask, mask);
	319	+ if (!param->mask[0] && MLX5_CAP_GEN(dev, log_max_uctx))
	320	+ MLX5_SET(create_eq_in, in, uid, MLX5_SHARED_RESOURCE_UID);
	321	+
	322	+ for (i = 0; i < 4; i++)
	323	+ MLX5_ARRAY_SET64(create_eq_in, in, event_bitmask, i,
	324	+ param->mask[i]);
695	325
696	326	eqc = MLX5_ADDR_OF(create_eq_in, in, eq_context_entry);
697	327	MLX5_SET(eqc, eqc, log_eq_size, ilog2(eq->nent));
..	..	@@ -704,46 +334,18 @@
704	334	if (err)
705	335	goto err_in;
706	336
707		- snprintf(priv->irq_info[vecidx].name, MLX5_MAX_IRQ_NAME, "%s@pci:%s",
708		- name, pci_name(dev->pdev));
709		-
	337	+ eq->vecidx = vecidx;
710	338	eq->eqn = MLX5_GET(create_eq_out, out, eq_number);
711	339	eq->irqn = pci_irq_vector(dev->pdev, vecidx);
712	340	eq->dev = dev;
713	341	eq->doorbell = priv->uar->map + MLX5_EQ_DOORBEL_OFFSET;
714		- err = request_irq(eq->irqn, handler, 0,
715		- priv->irq_info[vecidx].name, eq);
716		- if (err)
717		- goto err_eq;
718	342
719	343	err = mlx5_debug_eq_add(dev, eq);
720	344	if (err)
721		- goto err_irq;
722		-
723		-#ifdef CONFIG_INFINIBAND_ON_DEMAND_PAGING
724		- if (type == MLX5_EQ_TYPE_PF) {
725		- err = init_pf_ctx(&eq->pf_ctx, name);
726		- if (err)
727		- goto err_irq;
728		- } else
729		-#endif
730		- {
731		- INIT_LIST_HEAD(&eq->tasklet_ctx.list);
732		- INIT_LIST_HEAD(&eq->tasklet_ctx.process_list);
733		- spin_lock_init(&eq->tasklet_ctx.lock);
734		- tasklet_init(&eq->tasklet_ctx.task, mlx5_cq_tasklet_cb,
735		- (unsigned long)&eq->tasklet_ctx);
736		- }
737		-
738		- /* EQs are created in ARMED state
739		- */
740		- eq_update_ci(eq, 1);
	345	+ goto err_eq;
741	346
742	347	kvfree(in);
743	348	return 0;
744		-
745		-err_irq:
746		- free_irq(eq->irqn, eq);
747	349
748	350	err_eq:
749	351	mlx5_cmd_destroy_eq(dev, eq->eqn);
..	..	@@ -756,27 +358,59 @@
756	358	return err;
757	359	}
758	360
759		-int mlx5_destroy_unmap_eq(struct mlx5_core_dev dev, struct mlx5_eq eq)
	361	+/**
	362	+ * mlx5_eq_enable - Enable EQ for receiving EQEs
	363	+ * @dev : Device which owns the eq
	364	+ * @eq : EQ to enable
	365	+ * @nb : Notifier call block
	366	+ *
	367	+ * Must be called after EQ is created in device.
	368	+ *
	369	+ * @return: 0 if no error
	370	+ */
	371	+int mlx5_eq_enable(struct mlx5_core_dev dev, struct mlx5_eq eq,
	372	+ struct notifier_block *nb)
	373	+{
	374	+ struct mlx5_eq_table *eq_table = dev->priv.eq_table;
	375	+ int err;
	376	+
	377	+ err = mlx5_irq_attach_nb(eq_table->irq_table, eq->vecidx, nb);
	378	+ if (!err)
	379	+ eq_update_ci(eq, 1);
	380	+
	381	+ return err;
	382	+}
	383	+EXPORT_SYMBOL(mlx5_eq_enable);
	384	+
	385	+/**
	386	+ * mlx5_eq_disable - Disable EQ for receiving EQEs
	387	+ * @dev : Device which owns the eq
	388	+ * @eq : EQ to disable
	389	+ * @nb : Notifier call block
	390	+ *
	391	+ * Must be called before EQ is destroyed.
	392	+ */
	393	+void mlx5_eq_disable(struct mlx5_core_dev dev, struct mlx5_eq eq,
	394	+ struct notifier_block *nb)
	395	+{
	396	+ struct mlx5_eq_table *eq_table = dev->priv.eq_table;
	397	+
	398	+ mlx5_irq_detach_nb(eq_table->irq_table, eq->vecidx, nb);
	399	+}
	400	+EXPORT_SYMBOL(mlx5_eq_disable);
	401	+
	402	+static int destroy_unmap_eq(struct mlx5_core_dev dev, struct mlx5_eq eq)
760	403	{
761	404	int err;
762	405
763	406	mlx5_debug_eq_remove(dev, eq);
764		- free_irq(eq->irqn, eq);
	407	+
765	408	err = mlx5_cmd_destroy_eq(dev, eq->eqn);
766	409	if (err)
767	410	mlx5_core_warn(dev, "failed to destroy a previously created eq: eqn %d\n",
768	411	eq->eqn);
769	412	synchronize_irq(eq->irqn);
770	413
771		- if (eq->type == MLX5_EQ_TYPE_COMP) {
772		- tasklet_disable(&eq->tasklet_ctx.task);
773		-#ifdef CONFIG_INFINIBAND_ON_DEMAND_PAGING
774		- } else if (eq->type == MLX5_EQ_TYPE_PF) {
775		- cancel_work_sync(&eq->pf_ctx.work);
776		- destroy_workqueue(eq->pf_ctx.wq);
777		- mempool_destroy(eq->pf_ctx.pool);
778		-#endif
779		- }
780	414	mlx5_buf_free(dev, &eq->buf);
781	415
782	416	return err;
..	..	@@ -787,62 +421,149 @@
787	421	struct mlx5_cq_table *table = &eq->cq_table;
788	422	int err;
789	423
790		- spin_lock_irq(&table->lock);
	424	+ spin_lock(&table->lock);
791	425	err = radix_tree_insert(&table->tree, cq->cqn, cq);
792		- spin_unlock_irq(&table->lock);
	426	+ spin_unlock(&table->lock);
793	427
794	428	return err;
795	429	}
796	430
797		-int mlx5_eq_del_cq(struct mlx5_eq eq, struct mlx5_core_cq cq)
	431	+void mlx5_eq_del_cq(struct mlx5_eq eq, struct mlx5_core_cq cq)
798	432	{
799	433	struct mlx5_cq_table *table = &eq->cq_table;
800	434	struct mlx5_core_cq *tmp;
801	435
802		- spin_lock_irq(&table->lock);
	436	+ spin_lock(&table->lock);
803	437	tmp = radix_tree_delete(&table->tree, cq->cqn);
804		- spin_unlock_irq(&table->lock);
	438	+ spin_unlock(&table->lock);
805	439
806	440	if (!tmp) {
807		- mlx5_core_warn(eq->dev, "cq 0x%x not found in eq 0x%x tree\n", eq->eqn, cq->cqn);
808		- return -ENOENT;
	441	+ mlx5_core_dbg(eq->dev, "cq 0x%x not found in eq 0x%x tree\n",
	442	+ eq->eqn, cq->cqn);
	443	+ return;
809	444	}
810	445
811		- if (tmp != cq) {
812		- mlx5_core_warn(eq->dev, "corruption on cqn 0x%x in eq 0x%x\n", eq->eqn, cq->cqn);
813		- return -EINVAL;
814		- }
	446	+ if (tmp != cq)
	447	+ mlx5_core_dbg(eq->dev, "corruption on cqn 0x%x in eq 0x%x\n",
	448	+ eq->eqn, cq->cqn);
	449	+}
815	450
	451	+int mlx5_eq_table_init(struct mlx5_core_dev *dev)
	452	+{
	453	+ struct mlx5_eq_table *eq_table;
	454	+ int i;
	455	+
	456	+ eq_table = kvzalloc(sizeof(*eq_table), GFP_KERNEL);
	457	+ if (!eq_table)
	458	+ return -ENOMEM;
	459	+
	460	+ dev->priv.eq_table = eq_table;
	461	+
	462	+ mlx5_eq_debugfs_init(dev);
	463	+
	464	+ mutex_init(&eq_table->lock);
	465	+ for (i = 0; i < MLX5_EVENT_TYPE_MAX; i++)
	466	+ ATOMIC_INIT_NOTIFIER_HEAD(&eq_table->nh[i]);
	467	+
	468	+ eq_table->irq_table = dev->priv.irq_table;
816	469	return 0;
817	470	}
818	471
819		-int mlx5_eq_init(struct mlx5_core_dev *dev)
	472	+void mlx5_eq_table_cleanup(struct mlx5_core_dev *dev)
820	473	{
	474	+ mlx5_eq_debugfs_cleanup(dev);
	475	+ kvfree(dev->priv.eq_table);
	476	+}
	477	+
	478	+/* Async EQs */
	479	+
	480	+static int create_async_eq(struct mlx5_core_dev *dev,
	481	+ struct mlx5_eq eq, struct mlx5_eq_param param)
	482	+{
	483	+ struct mlx5_eq_table *eq_table = dev->priv.eq_table;
821	484	int err;
822	485
823		- spin_lock_init(&dev->priv.eq_table.lock);
	486	+ mutex_lock(&eq_table->lock);
	487	+ /* Async EQs must share irq index 0 */
	488	+ if (param->irq_index != 0) {
	489	+ err = -EINVAL;
	490	+ goto unlock;
	491	+ }
824	492
825		- err = mlx5_eq_debugfs_init(dev);
826		-
	493	+ err = create_map_eq(dev, eq, param);
	494	+unlock:
	495	+ mutex_unlock(&eq_table->lock);
827	496	return err;
828	497	}
829	498
830		-void mlx5_eq_cleanup(struct mlx5_core_dev *dev)
	499	+static int destroy_async_eq(struct mlx5_core_dev dev, struct mlx5_eq eq)
831	500	{
832		- mlx5_eq_debugfs_cleanup(dev);
	501	+ struct mlx5_eq_table *eq_table = dev->priv.eq_table;
	502	+ int err;
	503	+
	504	+ mutex_lock(&eq_table->lock);
	505	+ err = destroy_unmap_eq(dev, eq);
	506	+ mutex_unlock(&eq_table->lock);
	507	+ return err;
833	508	}
834	509
835		-int mlx5_start_eqs(struct mlx5_core_dev *dev)
	510	+static int cq_err_event_notifier(struct notifier_block *nb,
	511	+ unsigned long type, void *data)
836	512	{
837		- struct mlx5_eq_table *table = &dev->priv.eq_table;
	513	+ struct mlx5_eq_table *eqt;
	514	+ struct mlx5_core_cq *cq;
	515	+ struct mlx5_eqe *eqe;
	516	+ struct mlx5_eq *eq;
	517	+ u32 cqn;
	518	+
	519	+ /* type == MLX5_EVENT_TYPE_CQ_ERROR */
	520	+
	521	+ eqt = mlx5_nb_cof(nb, struct mlx5_eq_table, cq_err_nb);
	522	+ eq = &eqt->async_eq.core;
	523	+ eqe = data;
	524	+
	525	+ cqn = be32_to_cpu(eqe->data.cq_err.cqn) & 0xffffff;
	526	+ mlx5_core_warn(eq->dev, "CQ error on CQN 0x%x, syndrome 0x%x\n",
	527	+ cqn, eqe->data.cq_err.syndrome);
	528	+
	529	+ cq = mlx5_eq_cq_get(eq, cqn);
	530	+ if (unlikely(!cq)) {
	531	+ mlx5_core_warn(eq->dev, "Async event for bogus CQ 0x%x\n", cqn);
	532	+ return NOTIFY_OK;
	533	+ }
	534	+
	535	+ if (cq->event)
	536	+ cq->event(cq, type);
	537	+
	538	+ mlx5_cq_put(cq);
	539	+
	540	+ return NOTIFY_OK;
	541	+}
	542	+
	543	+static void gather_user_async_events(struct mlx5_core_dev *dev, u64 mask[4])
	544	+{
	545	+ __be64 *user_unaffiliated_events;
	546	+ __be64 *user_affiliated_events;
	547	+ int i;
	548	+
	549	+ user_affiliated_events =
	550	+ MLX5_CAP_DEV_EVENT(dev, user_affiliated_events);
	551	+ user_unaffiliated_events =
	552	+ MLX5_CAP_DEV_EVENT(dev, user_unaffiliated_events);
	553	+
	554	+ for (i = 0; i < 4; i++)
	555	+ mask[i] \|= be64_to_cpu(user_affiliated_events[i] \|
	556	+ user_unaffiliated_events[i]);
	557	+}
	558	+
	559	+static void gather_async_events_mask(struct mlx5_core_dev *dev, u64 mask[4])
	560	+{
838	561	u64 async_event_mask = MLX5_ASYNC_EVENT_MASK;
839		- int err;
840	562
841	563	if (MLX5_VPORT_MANAGER(dev))
842	564	async_event_mask \|= (1ull << MLX5_EVENT_TYPE_NIC_VPORT_CHANGE);
843	565
844		- if (MLX5_CAP_GEN(dev, port_type) == MLX5_CAP_PORT_TYPE_ETH &&
845		- MLX5_CAP_GEN(dev, general_notification_event))
	566	+ if (MLX5_CAP_GEN(dev, general_notification_event))
846	567	async_event_mask \|= (1ull << MLX5_EVENT_TYPE_GENERAL_EVENT);
847	568
848	569	if (MLX5_CAP_GEN(dev, port_module_event))
..	..	@@ -865,127 +586,414 @@
865	586	if (MLX5_CAP_MCAM_REG(dev, tracer_registers))
866	587	async_event_mask \|= (1ull << MLX5_EVENT_TYPE_DEVICE_TRACER);
867	588
868		- err = mlx5_create_map_eq(dev, &table->cmd_eq, MLX5_EQ_VEC_CMD,
869		- MLX5_NUM_CMD_EQE, 1ull << MLX5_EVENT_TYPE_CMD,
870		- "mlx5_cmd_eq", MLX5_EQ_TYPE_ASYNC);
	589	+ if (MLX5_CAP_GEN(dev, max_num_of_monitor_counters))
	590	+ async_event_mask \|= (1ull << MLX5_EVENT_TYPE_MONITOR_COUNTER);
	591	+
	592	+ if (mlx5_eswitch_is_funcs_handler(dev))
	593	+ async_event_mask \|=
	594	+ (1ull << MLX5_EVENT_TYPE_ESW_FUNCTIONS_CHANGED);
	595	+
	596	+ mask[0] = async_event_mask;
	597	+
	598	+ if (MLX5_CAP_GEN(dev, event_cap))
	599	+ gather_user_async_events(dev, mask);
	600	+}
	601	+
	602	+static int
	603	+setup_async_eq(struct mlx5_core_dev dev, struct mlx5_eq_async eq,
	604	+ struct mlx5_eq_param param, const char name)
	605	+{
	606	+ int err;
	607	+
	608	+ eq->irq_nb.notifier_call = mlx5_eq_async_int;
	609	+ spin_lock_init(&eq->lock);
	610	+
	611	+ err = create_async_eq(dev, &eq->core, param);
871	612	if (err) {
872		- mlx5_core_warn(dev, "failed to create cmd EQ %d\n", err);
	613	+ mlx5_core_warn(dev, "failed to create %s EQ %d\n", name, err);
873	614	return err;
874	615	}
	616	+ err = mlx5_eq_enable(dev, &eq->core, &eq->irq_nb);
	617	+ if (err) {
	618	+ mlx5_core_warn(dev, "failed to enable %s EQ %d\n", name, err);
	619	+ destroy_async_eq(dev, &eq->core);
	620	+ }
	621	+ return err;
	622	+}
	623	+
	624	+static void cleanup_async_eq(struct mlx5_core_dev *dev,
	625	+ struct mlx5_eq_async eq, const char name)
	626	+{
	627	+ int err;
	628	+
	629	+ mlx5_eq_disable(dev, &eq->core, &eq->irq_nb);
	630	+ err = destroy_async_eq(dev, &eq->core);
	631	+ if (err)
	632	+ mlx5_core_err(dev, "failed to destroy %s eq, err(%d)\n",
	633	+ name, err);
	634	+}
	635	+
	636	+static int create_async_eqs(struct mlx5_core_dev *dev)
	637	+{
	638	+ struct mlx5_eq_table *table = dev->priv.eq_table;
	639	+ struct mlx5_eq_param param = {};
	640	+ int err;
	641	+
	642	+ MLX5_NB_INIT(&table->cq_err_nb, cq_err_event_notifier, CQ_ERROR);
	643	+ mlx5_eq_notifier_register(dev, &table->cq_err_nb);
	644	+
	645	+ param = (struct mlx5_eq_param) {
	646	+ .irq_index = 0,
	647	+ .nent = MLX5_NUM_CMD_EQE,
	648	+ .mask[0] = 1ull << MLX5_EVENT_TYPE_CMD,
	649	+ };
	650	+ mlx5_cmd_allowed_opcode(dev, MLX5_CMD_OP_CREATE_EQ);
	651	+ err = setup_async_eq(dev, &table->cmd_eq, &param, "cmd");
	652	+ if (err)
	653	+ goto err1;
875	654
876	655	mlx5_cmd_use_events(dev);
	656	+ mlx5_cmd_allowed_opcode(dev, CMD_ALLOWED_OPCODE_ALL);
877	657
878		- err = mlx5_create_map_eq(dev, &table->async_eq, MLX5_EQ_VEC_ASYNC,
879		- MLX5_NUM_ASYNC_EQE, async_event_mask,
880		- "mlx5_async_eq", MLX5_EQ_TYPE_ASYNC);
881		- if (err) {
882		- mlx5_core_warn(dev, "failed to create async EQ %d\n", err);
883		- goto err1;
884		- }
	658	+ param = (struct mlx5_eq_param) {
	659	+ .irq_index = 0,
	660	+ .nent = MLX5_NUM_ASYNC_EQE,
	661	+ };
885	662
886		- err = mlx5_create_map_eq(dev, &table->pages_eq,
887		- MLX5_EQ_VEC_PAGES,
888		- /* TODO: sriov max_vf + */ 1,
889		- 1 << MLX5_EVENT_TYPE_PAGE_REQUEST, "mlx5_pages_eq",
890		- MLX5_EQ_TYPE_ASYNC);
891		- if (err) {
892		- mlx5_core_warn(dev, "failed to create pages EQ %d\n", err);
	663	+ gather_async_events_mask(dev, param.mask);
	664	+ err = setup_async_eq(dev, &table->async_eq, &param, "async");
	665	+ if (err)
893	666	goto err2;
	667	+
	668	+ param = (struct mlx5_eq_param) {
	669	+ .irq_index = 0,
	670	+ .nent = /* TODO: sriov max_vf + */ 1,
	671	+ .mask[0] = 1ull << MLX5_EVENT_TYPE_PAGE_REQUEST,
	672	+ };
	673	+
	674	+ err = setup_async_eq(dev, &table->pages_eq, &param, "pages");
	675	+ if (err)
	676	+ goto err3;
	677	+
	678	+ return 0;
	679	+
	680	+err3:
	681	+ cleanup_async_eq(dev, &table->async_eq, "async");
	682	+err2:
	683	+ mlx5_cmd_use_polling(dev);
	684	+ cleanup_async_eq(dev, &table->cmd_eq, "cmd");
	685	+err1:
	686	+ mlx5_cmd_allowed_opcode(dev, CMD_ALLOWED_OPCODE_ALL);
	687	+ mlx5_eq_notifier_unregister(dev, &table->cq_err_nb);
	688	+ return err;
	689	+}
	690	+
	691	+static void destroy_async_eqs(struct mlx5_core_dev *dev)
	692	+{
	693	+ struct mlx5_eq_table *table = dev->priv.eq_table;
	694	+
	695	+ cleanup_async_eq(dev, &table->pages_eq, "pages");
	696	+ cleanup_async_eq(dev, &table->async_eq, "async");
	697	+ mlx5_cmd_allowed_opcode(dev, MLX5_CMD_OP_DESTROY_EQ);
	698	+ mlx5_cmd_use_polling(dev);
	699	+ cleanup_async_eq(dev, &table->cmd_eq, "cmd");
	700	+ mlx5_cmd_allowed_opcode(dev, CMD_ALLOWED_OPCODE_ALL);
	701	+ mlx5_eq_notifier_unregister(dev, &table->cq_err_nb);
	702	+}
	703	+
	704	+struct mlx5_eq mlx5_get_async_eq(struct mlx5_core_dev dev)
	705	+{
	706	+ return &dev->priv.eq_table->async_eq.core;
	707	+}
	708	+
	709	+void mlx5_eq_synchronize_async_irq(struct mlx5_core_dev *dev)
	710	+{
	711	+ synchronize_irq(dev->priv.eq_table->async_eq.core.irqn);
	712	+}
	713	+
	714	+void mlx5_eq_synchronize_cmd_irq(struct mlx5_core_dev *dev)
	715	+{
	716	+ synchronize_irq(dev->priv.eq_table->cmd_eq.core.irqn);
	717	+}
	718	+
	719	+/* Generic EQ API for mlx5_core consumers
	720	+ * Needed For RDMA ODP EQ for now
	721	+ */
	722	+struct mlx5_eq *
	723	+mlx5_eq_create_generic(struct mlx5_core_dev *dev,
	724	+ struct mlx5_eq_param *param)
	725	+{
	726	+ struct mlx5_eq eq = kvzalloc(sizeof(eq), GFP_KERNEL);
	727	+ int err;
	728	+
	729	+ if (!eq)
	730	+ return ERR_PTR(-ENOMEM);
	731	+
	732	+ err = create_async_eq(dev, eq, param);
	733	+ if (err) {
	734	+ kvfree(eq);
	735	+ eq = ERR_PTR(err);
894	736	}
895	737
896		-#ifdef CONFIG_INFINIBAND_ON_DEMAND_PAGING
897		- if (MLX5_CAP_GEN(dev, pg)) {
898		- err = mlx5_create_map_eq(dev, &table->pfault_eq,
899		- MLX5_EQ_VEC_PFAULT,
900		- MLX5_NUM_ASYNC_EQE,
901		- 1 << MLX5_EVENT_TYPE_PAGE_FAULT,
902		- "mlx5_page_fault_eq",
903		- MLX5_EQ_TYPE_PF);
	738	+ return eq;
	739	+}
	740	+EXPORT_SYMBOL(mlx5_eq_create_generic);
	741	+
	742	+int mlx5_eq_destroy_generic(struct mlx5_core_dev dev, struct mlx5_eq eq)
	743	+{
	744	+ int err;
	745	+
	746	+ if (IS_ERR(eq))
	747	+ return -EINVAL;
	748	+
	749	+ err = destroy_async_eq(dev, eq);
	750	+ if (err)
	751	+ goto out;
	752	+
	753	+ kvfree(eq);
	754	+out:
	755	+ return err;
	756	+}
	757	+EXPORT_SYMBOL(mlx5_eq_destroy_generic);
	758	+
	759	+struct mlx5_eqe mlx5_eq_get_eqe(struct mlx5_eq eq, u32 cc)
	760	+{
	761	+ u32 ci = eq->cons_index + cc;
	762	+ struct mlx5_eqe *eqe;
	763	+
	764	+ eqe = get_eqe(eq, ci & (eq->nent - 1));
	765	+ eqe = ((eqe->owner & 1) ^ !!(ci & eq->nent)) ? NULL : eqe;
	766	+ /* Make sure we read EQ entry contents after we've
	767	+ * checked the ownership bit.
	768	+ */
	769	+ if (eqe)
	770	+ dma_rmb();
	771	+
	772	+ return eqe;
	773	+}
	774	+EXPORT_SYMBOL(mlx5_eq_get_eqe);
	775	+
	776	+void mlx5_eq_update_ci(struct mlx5_eq *eq, u32 cc, bool arm)
	777	+{
	778	+ __be32 __iomem *addr = eq->doorbell + (arm ? 0 : 2);
	779	+ u32 val;
	780	+
	781	+ eq->cons_index += cc;
	782	+ val = (eq->cons_index & 0xffffff) \| (eq->eqn << 24);
	783	+
	784	+ __raw_writel((__force u32)cpu_to_be32(val), addr);
	785	+ /* We still want ordering, just not swabbing, so add a barrier */
	786	+ wmb();
	787	+}
	788	+EXPORT_SYMBOL(mlx5_eq_update_ci);
	789	+
	790	+static void destroy_comp_eqs(struct mlx5_core_dev *dev)
	791	+{
	792	+ struct mlx5_eq_table *table = dev->priv.eq_table;
	793	+ struct mlx5_eq_comp eq, n;
	794	+
	795	+ list_for_each_entry_safe(eq, n, &table->comp_eqs_list, list) {
	796	+ list_del(&eq->list);
	797	+ mlx5_eq_disable(dev, &eq->core, &eq->irq_nb);
	798	+ if (destroy_unmap_eq(dev, &eq->core))
	799	+ mlx5_core_warn(dev, "failed to destroy comp EQ 0x%x\n",
	800	+ eq->core.eqn);
	801	+ tasklet_disable(&eq->tasklet_ctx.task);
	802	+ kfree(eq);
	803	+ }
	804	+}
	805	+
	806	+static int create_comp_eqs(struct mlx5_core_dev *dev)
	807	+{
	808	+ struct mlx5_eq_table *table = dev->priv.eq_table;
	809	+ struct mlx5_eq_comp *eq;
	810	+ int ncomp_eqs;
	811	+ int nent;
	812	+ int err;
	813	+ int i;
	814	+
	815	+ INIT_LIST_HEAD(&table->comp_eqs_list);
	816	+ ncomp_eqs = table->num_comp_eqs;
	817	+ nent = MLX5_COMP_EQ_SIZE;
	818	+ for (i = 0; i < ncomp_eqs; i++) {
	819	+ int vecidx = i + MLX5_IRQ_VEC_COMP_BASE;
	820	+ struct mlx5_eq_param param = {};
	821	+
	822	+ eq = kzalloc(sizeof(*eq), GFP_KERNEL);
	823	+ if (!eq) {
	824	+ err = -ENOMEM;
	825	+ goto clean;
	826	+ }
	827	+
	828	+ INIT_LIST_HEAD(&eq->tasklet_ctx.list);
	829	+ INIT_LIST_HEAD(&eq->tasklet_ctx.process_list);
	830	+ spin_lock_init(&eq->tasklet_ctx.lock);
	831	+ tasklet_setup(&eq->tasklet_ctx.task, mlx5_cq_tasklet_cb);
	832	+
	833	+ eq->irq_nb.notifier_call = mlx5_eq_comp_int;
	834	+ param = (struct mlx5_eq_param) {
	835	+ .irq_index = vecidx,
	836	+ .nent = nent,
	837	+ };
	838	+ err = create_map_eq(dev, &eq->core, &param);
904	839	if (err) {
905		- mlx5_core_warn(dev, "failed to create page fault EQ %d\n",
906		- err);
907		- goto err3;
	840	+ kfree(eq);
	841	+ goto clean;
	842	+ }
	843	+ err = mlx5_eq_enable(dev, &eq->core, &eq->irq_nb);
	844	+ if (err) {
	845	+ destroy_unmap_eq(dev, &eq->core);
	846	+ kfree(eq);
	847	+ goto clean;
	848	+ }
	849	+
	850	+ mlx5_core_dbg(dev, "allocated completion EQN %d\n", eq->core.eqn);
	851	+ /* add tail, to keep the list ordered, for mlx5_vector2eqn to work */
	852	+ list_add_tail(&eq->list, &table->comp_eqs_list);
	853	+ }
	854	+
	855	+ return 0;
	856	+
	857	+clean:
	858	+ destroy_comp_eqs(dev);
	859	+ return err;
	860	+}
	861	+
	862	+static int vector2eqnirqn(struct mlx5_core_dev dev, int vector, int eqn,
	863	+ unsigned int *irqn)
	864	+{
	865	+ struct mlx5_eq_table *table = dev->priv.eq_table;
	866	+ struct mlx5_eq_comp eq, n;
	867	+ int err = -ENOENT;
	868	+ int i = 0;
	869	+
	870	+ list_for_each_entry_safe(eq, n, &table->comp_eqs_list, list) {
	871	+ if (i++ == vector) {
	872	+ if (irqn)
	873	+ *irqn = eq->core.irqn;
	874	+ if (eqn)
	875	+ *eqn = eq->core.eqn;
	876	+ err = 0;
	877	+ break;
908	878	}
909	879	}
910	880
911	881	return err;
912		-err3:
913		- mlx5_destroy_unmap_eq(dev, &table->pages_eq);
914		-#else
915		- return err;
916		-#endif
917		-
918		-err2:
919		- mlx5_destroy_unmap_eq(dev, &table->async_eq);
920		-
921		-err1:
922		- mlx5_cmd_use_polling(dev);
923		- mlx5_destroy_unmap_eq(dev, &table->cmd_eq);
924		- return err;
925	882	}
926	883
927		-void mlx5_stop_eqs(struct mlx5_core_dev *dev)
	884	+int mlx5_vector2eqn(struct mlx5_core_dev dev, int vector, int eqn)
928	885	{
929		- struct mlx5_eq_table *table = &dev->priv.eq_table;
930		- int err;
	886	+ return vector2eqnirqn(dev, vector, eqn, NULL);
	887	+}
	888	+EXPORT_SYMBOL(mlx5_vector2eqn);
931	889
932		-#ifdef CONFIG_INFINIBAND_ON_DEMAND_PAGING
933		- if (MLX5_CAP_GEN(dev, pg)) {
934		- err = mlx5_destroy_unmap_eq(dev, &table->pfault_eq);
935		- if (err)
936		- mlx5_core_err(dev, "failed to destroy page fault eq, err(%d)\n",
937		- err);
	890	+int mlx5_vector2irqn(struct mlx5_core_dev dev, int vector, unsigned int irqn)
	891	+{
	892	+ return vector2eqnirqn(dev, vector, NULL, irqn);
	893	+}
	894	+
	895	+unsigned int mlx5_comp_vectors_count(struct mlx5_core_dev *dev)
	896	+{
	897	+ return dev->priv.eq_table->num_comp_eqs;
	898	+}
	899	+EXPORT_SYMBOL(mlx5_comp_vectors_count);
	900	+
	901	+struct cpumask *
	902	+mlx5_comp_irq_get_affinity_mask(struct mlx5_core_dev *dev, int vector)
	903	+{
	904	+ int vecidx = vector + MLX5_IRQ_VEC_COMP_BASE;
	905	+
	906	+ return mlx5_irq_get_affinity_mask(dev->priv.eq_table->irq_table,
	907	+ vecidx);
	908	+}
	909	+EXPORT_SYMBOL(mlx5_comp_irq_get_affinity_mask);
	910	+
	911	+#ifdef CONFIG_RFS_ACCEL
	912	+struct cpu_rmap mlx5_eq_table_get_rmap(struct mlx5_core_dev dev)
	913	+{
	914	+ return mlx5_irq_get_rmap(dev->priv.eq_table->irq_table);
	915	+}
	916	+#endif
	917	+
	918	+struct mlx5_eq_comp mlx5_eqn2comp_eq(struct mlx5_core_dev dev, int eqn)
	919	+{
	920	+ struct mlx5_eq_table *table = dev->priv.eq_table;
	921	+ struct mlx5_eq_comp *eq;
	922	+
	923	+ list_for_each_entry(eq, &table->comp_eqs_list, list) {
	924	+ if (eq->core.eqn == eqn)
	925	+ return eq;
938	926	}
939		-#endif
940	927
941		- err = mlx5_destroy_unmap_eq(dev, &table->pages_eq);
942		- if (err)
943		- mlx5_core_err(dev, "failed to destroy pages eq, err(%d)\n",
944		- err);
945		-
946		- err = mlx5_destroy_unmap_eq(dev, &table->async_eq);
947		- if (err)
948		- mlx5_core_err(dev, "failed to destroy async eq, err(%d)\n",
949		- err);
950		- mlx5_cmd_use_polling(dev);
951		-
952		- err = mlx5_destroy_unmap_eq(dev, &table->cmd_eq);
953		- if (err)
954		- mlx5_core_err(dev, "failed to destroy command eq, err(%d)\n",
955		- err);
956		-}
957		-
958		-int mlx5_core_eq_query(struct mlx5_core_dev dev, struct mlx5_eq eq,
959		- u32 *out, int outlen)
960		-{
961		- u32 in[MLX5_ST_SZ_DW(query_eq_in)] = {0};
962		-
963		- MLX5_SET(query_eq_in, in, opcode, MLX5_CMD_OP_QUERY_EQ);
964		- MLX5_SET(query_eq_in, in, eq_number, eq->eqn);
965		- return mlx5_cmd_exec(dev, in, sizeof(in), out, outlen);
	928	+ return ERR_PTR(-ENOENT);
966	929	}
967	930
968	931	/* This function should only be called after mlx5_cmd_force_teardown_hca */
969	932	void mlx5_core_eq_free_irqs(struct mlx5_core_dev *dev)
970	933	{
971		- struct mlx5_eq_table *table = &dev->priv.eq_table;
972		- struct mlx5_eq *eq;
	934	+ struct mlx5_eq_table *table = dev->priv.eq_table;
973	935
974		-#ifdef CONFIG_RFS_ACCEL
975		- if (dev->rmap) {
976		- free_irq_cpu_rmap(dev->rmap);
977		- dev->rmap = NULL;
978		- }
979		-#endif
980		- list_for_each_entry(eq, &table->comp_eqs_list, list)
981		- free_irq(eq->irqn, eq);
982		-
983		- free_irq(table->pages_eq.irqn, &table->pages_eq);
984		- free_irq(table->async_eq.irqn, &table->async_eq);
985		- free_irq(table->cmd_eq.irqn, &table->cmd_eq);
986		-#ifdef CONFIG_INFINIBAND_ON_DEMAND_PAGING
987		- if (MLX5_CAP_GEN(dev, pg))
988		- free_irq(table->pfault_eq.irqn, &table->pfault_eq);
989		-#endif
990		- pci_free_irq_vectors(dev->pdev);
	936	+ mutex_lock(&table->lock); /* sync with create/destroy_async_eq */
	937	+ mlx5_irq_table_destroy(dev);
	938	+ mutex_unlock(&table->lock);
991	939	}
	940	+
	941	+#ifdef CONFIG_INFINIBAND_ON_DEMAND_PAGING
	942	+#define MLX5_MAX_ASYNC_EQS 4
	943	+#else
	944	+#define MLX5_MAX_ASYNC_EQS 3
	945	+#endif
	946	+
	947	+int mlx5_eq_table_create(struct mlx5_core_dev *dev)
	948	+{
	949	+ struct mlx5_eq_table *eq_table = dev->priv.eq_table;
	950	+ int num_eqs = MLX5_CAP_GEN(dev, max_num_eqs) ?
	951	+ MLX5_CAP_GEN(dev, max_num_eqs) :
	952	+ 1 << MLX5_CAP_GEN(dev, log_max_eq);
	953	+ int err;
	954	+
	955	+ eq_table->num_comp_eqs =
	956	+ min_t(int,
	957	+ mlx5_irq_get_num_comp(eq_table->irq_table),
	958	+ num_eqs - MLX5_MAX_ASYNC_EQS);
	959	+
	960	+ err = create_async_eqs(dev);
	961	+ if (err) {
	962	+ mlx5_core_err(dev, "Failed to create async EQs\n");
	963	+ goto err_async_eqs;
	964	+ }
	965	+
	966	+ err = create_comp_eqs(dev);
	967	+ if (err) {
	968	+ mlx5_core_err(dev, "Failed to create completion EQs\n");
	969	+ goto err_comp_eqs;
	970	+ }
	971	+
	972	+ return 0;
	973	+err_comp_eqs:
	974	+ destroy_async_eqs(dev);
	975	+err_async_eqs:
	976	+ return err;
	977	+}
	978	+
	979	+void mlx5_eq_table_destroy(struct mlx5_core_dev *dev)
	980	+{
	981	+ destroy_comp_eqs(dev);
	982	+ destroy_async_eqs(dev);
	983	+}
	984	+
	985	+int mlx5_eq_notifier_register(struct mlx5_core_dev dev, struct mlx5_nb nb)
	986	+{
	987	+ struct mlx5_eq_table *eqt = dev->priv.eq_table;
	988	+
	989	+ return atomic_notifier_chain_register(&eqt->nh[nb->event_type], &nb->nb);
	990	+}
	991	+EXPORT_SYMBOL(mlx5_eq_notifier_register);
	992	+
	993	+int mlx5_eq_notifier_unregister(struct mlx5_core_dev dev, struct mlx5_nb nb)
	994	+{
	995	+ struct mlx5_eq_table *eqt = dev->priv.eq_table;
	996	+
	997	+ return atomic_notifier_chain_unregister(&eqt->nh[nb->event_type], &nb->nb);
	998	+}
	999	+EXPORT_SYMBOL(mlx5_eq_notifier_unregister);