1 // SPDX-License-Identifier: GPL-2.0-only
3 * Huawei HiNIC PCI Express Linux driver
4 * Copyright(c) 2017 Huawei Technologies Co., Ltd
7 #include <linux/kernel.h>
8 #include <linux/types.h>
10 #include <linux/device.h>
11 #include <linux/errno.h>
12 #include <linux/slab.h>
13 #include <linux/bitops.h>
14 #include <linux/delay.h>
15 #include <linux/jiffies.h>
16 #include <linux/log2.h>
17 #include <linux/err.h>
18 #include <linux/netdevice.h>
19 #include <net/devlink.h>
21 #include "hinic_devlink.h"
22 #include "hinic_sriov.h"
23 #include "hinic_dev.h"
24 #include "hinic_hw_if.h"
25 #include "hinic_hw_eqs.h"
26 #include "hinic_hw_mgmt.h"
27 #include "hinic_hw_qp_ctxt.h"
28 #include "hinic_hw_qp.h"
29 #include "hinic_hw_io.h"
30 #include "hinic_hw_dev.h"
32 #define OUTBOUND_STATE_TIMEOUT 100
33 #define DB_STATE_TIMEOUT 100
35 #define MAX_IRQS(max_qps, num_aeqs, num_ceqs) \
36 (2 * (max_qps) + (num_aeqs) + (num_ceqs))
38 #define ADDR_IN_4BYTES(addr) ((addr) >> 2)
45 * parse_capability - convert device capabilities to NIC capabilities
46 * @hwdev: the HW device to set and convert device capabilities for
47 * @dev_cap: device capabilities from FW
49 * Return 0 - Success, negative - Failure
51 static int parse_capability(struct hinic_hwdev *hwdev,
52 struct hinic_dev_cap *dev_cap)
54 struct hinic_cap *nic_cap = &hwdev->nic_cap;
55 int num_aeqs, num_ceqs, num_irqs;
57 if (!HINIC_IS_VF(hwdev->hwif) && dev_cap->intr_type != INTR_MSIX_TYPE)
60 num_aeqs = HINIC_HWIF_NUM_AEQS(hwdev->hwif);
61 num_ceqs = HINIC_HWIF_NUM_CEQS(hwdev->hwif);
62 num_irqs = HINIC_HWIF_NUM_IRQS(hwdev->hwif);
64 /* Each QP has its own (SQ + RQ) interrupts */
65 nic_cap->num_qps = (num_irqs - (num_aeqs + num_ceqs)) / 2;
67 if (nic_cap->num_qps > HINIC_Q_CTXT_MAX)
68 nic_cap->num_qps = HINIC_Q_CTXT_MAX;
70 if (!HINIC_IS_VF(hwdev->hwif))
71 nic_cap->max_qps = dev_cap->max_sqs + 1;
73 nic_cap->max_qps = dev_cap->max_sqs;
75 if (nic_cap->num_qps > nic_cap->max_qps)
76 nic_cap->num_qps = nic_cap->max_qps;
78 if (!HINIC_IS_VF(hwdev->hwif)) {
79 nic_cap->max_vf = dev_cap->max_vf;
80 nic_cap->max_vf_qps = dev_cap->max_vf_sqs + 1;
83 hwdev->port_id = dev_cap->port_id;
89 * get_capability - get device capabilities from FW
90 * @pfhwdev: the PF HW device to get capabilities for
92 * Return 0 - Success, negative - Failure
94 static int get_capability(struct hinic_pfhwdev *pfhwdev)
96 struct hinic_hwdev *hwdev = &pfhwdev->hwdev;
97 struct hinic_hwif *hwif = hwdev->hwif;
98 struct pci_dev *pdev = hwif->pdev;
99 struct hinic_dev_cap dev_cap;
103 out_len = sizeof(dev_cap);
105 err = hinic_msg_to_mgmt(&pfhwdev->pf_to_mgmt, HINIC_MOD_CFGM,
106 HINIC_CFG_NIC_CAP, &dev_cap, sizeof(dev_cap),
107 &dev_cap, &out_len, HINIC_MGMT_MSG_SYNC);
109 dev_err(&pdev->dev, "Failed to get capability from FW\n");
113 return parse_capability(hwdev, &dev_cap);
117 * get_dev_cap - get device capabilities
118 * @hwdev: the NIC HW device to get capabilities for
120 * Return 0 - Success, negative - Failure
122 static int get_dev_cap(struct hinic_hwdev *hwdev)
124 struct hinic_hwif *hwif = hwdev->hwif;
125 struct pci_dev *pdev = hwif->pdev;
126 struct hinic_pfhwdev *pfhwdev;
129 switch (HINIC_FUNC_TYPE(hwif)) {
133 pfhwdev = container_of(hwdev, struct hinic_pfhwdev, hwdev);
134 err = get_capability(pfhwdev);
136 dev_err(&pdev->dev, "Failed to get capability\n");
141 dev_err(&pdev->dev, "Unsupported PCI Function type\n");
149 * init_msix - enable the msix and save the entries
150 * @hwdev: the NIC HW device
152 * Return 0 - Success, negative - Failure
154 static int init_msix(struct hinic_hwdev *hwdev)
156 struct hinic_hwif *hwif = hwdev->hwif;
157 struct pci_dev *pdev = hwif->pdev;
158 int nr_irqs, num_aeqs, num_ceqs;
161 num_aeqs = HINIC_HWIF_NUM_AEQS(hwif);
162 num_ceqs = HINIC_HWIF_NUM_CEQS(hwif);
163 nr_irqs = MAX_IRQS(HINIC_MAX_QPS, num_aeqs, num_ceqs);
164 if (nr_irqs > HINIC_HWIF_NUM_IRQS(hwif))
165 nr_irqs = HINIC_HWIF_NUM_IRQS(hwif);
167 hwdev->msix_entries = devm_kcalloc(&pdev->dev, nr_irqs,
168 sizeof(*hwdev->msix_entries),
170 if (!hwdev->msix_entries)
173 for (i = 0; i < nr_irqs; i++)
174 hwdev->msix_entries[i].entry = i;
176 err = pci_enable_msix_exact(pdev, hwdev->msix_entries, nr_irqs);
178 dev_err(&pdev->dev, "Failed to enable pci msix\n");
186 * disable_msix - disable the msix
187 * @hwdev: the NIC HW device
189 static void disable_msix(struct hinic_hwdev *hwdev)
191 struct hinic_hwif *hwif = hwdev->hwif;
192 struct pci_dev *pdev = hwif->pdev;
194 pci_disable_msix(pdev);
198 * hinic_port_msg_cmd - send port msg to mgmt
199 * @hwdev: the NIC HW device
200 * @cmd: the port command
201 * @buf_in: input buffer
202 * @in_size: input size
203 * @buf_out: output buffer
204 * @out_size: returned output size
206 * Return 0 - Success, negative - Failure
208 int hinic_port_msg_cmd(struct hinic_hwdev *hwdev, enum hinic_port_cmd cmd,
209 void *buf_in, u16 in_size, void *buf_out, u16 *out_size)
211 struct hinic_pfhwdev *pfhwdev;
213 pfhwdev = container_of(hwdev, struct hinic_pfhwdev, hwdev);
215 return hinic_msg_to_mgmt(&pfhwdev->pf_to_mgmt, HINIC_MOD_L2NIC, cmd,
216 buf_in, in_size, buf_out, out_size,
217 HINIC_MGMT_MSG_SYNC);
220 int hinic_hilink_msg_cmd(struct hinic_hwdev *hwdev, enum hinic_hilink_cmd cmd,
221 void *buf_in, u16 in_size, void *buf_out,
224 struct hinic_pfhwdev *pfhwdev;
226 pfhwdev = container_of(hwdev, struct hinic_pfhwdev, hwdev);
228 return hinic_msg_to_mgmt(&pfhwdev->pf_to_mgmt, HINIC_MOD_HILINK, cmd,
229 buf_in, in_size, buf_out, out_size,
230 HINIC_MGMT_MSG_SYNC);
234 * init_fw_ctxt- Init Firmware tables before network mgmt and io operations
235 * @hwdev: the NIC HW device
237 * Return 0 - Success, negative - Failure
239 static int init_fw_ctxt(struct hinic_hwdev *hwdev)
241 struct hinic_hwif *hwif = hwdev->hwif;
242 struct pci_dev *pdev = hwif->pdev;
243 struct hinic_cmd_fw_ctxt fw_ctxt;
244 u16 out_size = sizeof(fw_ctxt);
247 fw_ctxt.func_idx = HINIC_HWIF_FUNC_IDX(hwif);
248 fw_ctxt.rx_buf_sz = HINIC_RX_BUF_SZ;
250 err = hinic_port_msg_cmd(hwdev, HINIC_PORT_CMD_FWCTXT_INIT,
251 &fw_ctxt, sizeof(fw_ctxt),
252 &fw_ctxt, &out_size);
253 if (err || out_size != sizeof(fw_ctxt) || fw_ctxt.status) {
254 dev_err(&pdev->dev, "Failed to init FW ctxt, err: %d, status: 0x%x, out size: 0x%x\n",
255 err, fw_ctxt.status, out_size);
263 * set_hw_ioctxt - set the shape of the IO queues in FW
264 * @hwdev: the NIC HW device
265 * @rq_depth: rq depth
266 * @sq_depth: sq depth
268 * Return 0 - Success, negative - Failure
270 static int set_hw_ioctxt(struct hinic_hwdev *hwdev, unsigned int sq_depth,
271 unsigned int rq_depth)
273 struct hinic_hwif *hwif = hwdev->hwif;
274 struct hinic_cmd_hw_ioctxt hw_ioctxt;
275 struct hinic_pfhwdev *pfhwdev;
277 hw_ioctxt.func_idx = HINIC_HWIF_FUNC_IDX(hwif);
278 hw_ioctxt.ppf_idx = HINIC_HWIF_PPF_IDX(hwif);
280 hw_ioctxt.set_cmdq_depth = HW_IOCTXT_SET_CMDQ_DEPTH_DEFAULT;
281 hw_ioctxt.cmdq_depth = 0;
283 hw_ioctxt.lro_en = 1;
285 hw_ioctxt.rq_depth = ilog2(rq_depth);
287 hw_ioctxt.rx_buf_sz_idx = HINIC_RX_BUF_SZ_IDX;
289 hw_ioctxt.sq_depth = ilog2(sq_depth);
291 pfhwdev = container_of(hwdev, struct hinic_pfhwdev, hwdev);
293 return hinic_msg_to_mgmt(&pfhwdev->pf_to_mgmt, HINIC_MOD_COMM,
294 HINIC_COMM_CMD_HWCTXT_SET,
295 &hw_ioctxt, sizeof(hw_ioctxt), NULL,
296 NULL, HINIC_MGMT_MSG_SYNC);
299 static int wait_for_outbound_state(struct hinic_hwdev *hwdev)
301 enum hinic_outbound_state outbound_state;
302 struct hinic_hwif *hwif = hwdev->hwif;
303 struct pci_dev *pdev = hwif->pdev;
306 end = jiffies + msecs_to_jiffies(OUTBOUND_STATE_TIMEOUT);
308 outbound_state = hinic_outbound_state_get(hwif);
310 if (outbound_state == HINIC_OUTBOUND_ENABLE)
314 } while (time_before(jiffies, end));
316 dev_err(&pdev->dev, "Wait for OUTBOUND - Timeout\n");
320 static int wait_for_db_state(struct hinic_hwdev *hwdev)
322 struct hinic_hwif *hwif = hwdev->hwif;
323 struct pci_dev *pdev = hwif->pdev;
324 enum hinic_db_state db_state;
327 end = jiffies + msecs_to_jiffies(DB_STATE_TIMEOUT);
329 db_state = hinic_db_state_get(hwif);
331 if (db_state == HINIC_DB_ENABLE)
335 } while (time_before(jiffies, end));
337 dev_err(&pdev->dev, "Wait for DB - Timeout\n");
342 * clear_io_resources - set the IO resources as not active in the NIC
343 * @hwdev: the NIC HW device
345 * Return 0 - Success, negative - Failure
347 static int clear_io_resources(struct hinic_hwdev *hwdev)
349 struct hinic_cmd_clear_io_res cmd_clear_io_res;
350 struct hinic_hwif *hwif = hwdev->hwif;
351 struct pci_dev *pdev = hwif->pdev;
352 struct hinic_pfhwdev *pfhwdev;
355 /* sleep 100ms to wait for firmware stopping I/O */
358 cmd_clear_io_res.func_idx = HINIC_HWIF_FUNC_IDX(hwif);
360 pfhwdev = container_of(hwdev, struct hinic_pfhwdev, hwdev);
362 err = hinic_msg_to_mgmt(&pfhwdev->pf_to_mgmt, HINIC_MOD_COMM,
363 HINIC_COMM_CMD_IO_RES_CLEAR, &cmd_clear_io_res,
364 sizeof(cmd_clear_io_res), NULL, NULL,
365 HINIC_MGMT_MSG_SYNC);
367 dev_err(&pdev->dev, "Failed to clear IO resources\n");
375 * set_resources_state - set the state of the resources in the NIC
376 * @hwdev: the NIC HW device
377 * @state: the state to set
379 * Return 0 - Success, negative - Failure
381 static int set_resources_state(struct hinic_hwdev *hwdev,
382 enum hinic_res_state state)
384 struct hinic_cmd_set_res_state res_state;
385 struct hinic_hwif *hwif = hwdev->hwif;
386 struct hinic_pfhwdev *pfhwdev;
388 res_state.func_idx = HINIC_HWIF_FUNC_IDX(hwif);
389 res_state.state = state;
391 pfhwdev = container_of(hwdev, struct hinic_pfhwdev, hwdev);
393 return hinic_msg_to_mgmt(&pfhwdev->pf_to_mgmt,
395 HINIC_COMM_CMD_RES_STATE_SET,
396 &res_state, sizeof(res_state), NULL,
397 NULL, HINIC_MGMT_MSG_SYNC);
401 * get_base_qpn - get the first qp number
402 * @hwdev: the NIC HW device
403 * @base_qpn: returned qp number
405 * Return 0 - Success, negative - Failure
407 static int get_base_qpn(struct hinic_hwdev *hwdev, u16 *base_qpn)
409 struct hinic_cmd_base_qpn cmd_base_qpn;
410 struct hinic_hwif *hwif = hwdev->hwif;
411 u16 out_size = sizeof(cmd_base_qpn);
412 struct pci_dev *pdev = hwif->pdev;
415 cmd_base_qpn.func_idx = HINIC_HWIF_FUNC_IDX(hwif);
417 err = hinic_port_msg_cmd(hwdev, HINIC_PORT_CMD_GET_GLOBAL_QPN,
418 &cmd_base_qpn, sizeof(cmd_base_qpn),
419 &cmd_base_qpn, &out_size);
420 if (err || out_size != sizeof(cmd_base_qpn) || cmd_base_qpn.status) {
421 dev_err(&pdev->dev, "Failed to get base qpn, err: %d, status: 0x%x, out size: 0x%x\n",
422 err, cmd_base_qpn.status, out_size);
426 *base_qpn = cmd_base_qpn.qpn;
431 * hinic_hwdev_ifup - Preparing the HW for passing IO
432 * @hwdev: the NIC HW device
433 * @sq_depth: the send queue depth
434 * @rq_depth: the receive queue depth
436 * Return 0 - Success, negative - Failure
438 int hinic_hwdev_ifup(struct hinic_hwdev *hwdev, u16 sq_depth, u16 rq_depth)
440 struct hinic_func_to_io *func_to_io = &hwdev->func_to_io;
441 struct hinic_cap *nic_cap = &hwdev->nic_cap;
442 struct hinic_hwif *hwif = hwdev->hwif;
443 int err, num_aeqs, num_ceqs, num_qps;
444 struct msix_entry *ceq_msix_entries;
445 struct msix_entry *sq_msix_entries;
446 struct msix_entry *rq_msix_entries;
447 struct pci_dev *pdev = hwif->pdev;
450 err = get_base_qpn(hwdev, &base_qpn);
452 dev_err(&pdev->dev, "Failed to get global base qp number\n");
456 num_aeqs = HINIC_HWIF_NUM_AEQS(hwif);
457 num_ceqs = HINIC_HWIF_NUM_CEQS(hwif);
459 ceq_msix_entries = &hwdev->msix_entries[num_aeqs];
460 func_to_io->hwdev = hwdev;
461 func_to_io->sq_depth = sq_depth;
462 func_to_io->rq_depth = rq_depth;
463 func_to_io->global_qpn = base_qpn;
465 err = hinic_io_init(func_to_io, hwif, nic_cap->max_qps, num_ceqs,
468 dev_err(&pdev->dev, "Failed to init IO channel\n");
472 num_qps = nic_cap->num_qps;
473 sq_msix_entries = &hwdev->msix_entries[num_aeqs + num_ceqs];
474 rq_msix_entries = &hwdev->msix_entries[num_aeqs + num_ceqs + num_qps];
476 err = hinic_io_create_qps(func_to_io, base_qpn, num_qps,
477 sq_msix_entries, rq_msix_entries);
479 dev_err(&pdev->dev, "Failed to create QPs\n");
483 err = wait_for_db_state(hwdev);
485 dev_warn(&pdev->dev, "db - disabled, try again\n");
486 hinic_db_state_set(hwif, HINIC_DB_ENABLE);
489 err = set_hw_ioctxt(hwdev, sq_depth, rq_depth);
491 dev_err(&pdev->dev, "Failed to set HW IO ctxt\n");
498 hinic_io_destroy_qps(func_to_io, num_qps);
501 hinic_io_free(func_to_io);
506 * hinic_hwdev_ifdown - Closing the HW for passing IO
507 * @hwdev: the NIC HW device
510 void hinic_hwdev_ifdown(struct hinic_hwdev *hwdev)
512 struct hinic_func_to_io *func_to_io = &hwdev->func_to_io;
513 struct hinic_cap *nic_cap = &hwdev->nic_cap;
515 clear_io_resources(hwdev);
517 hinic_io_destroy_qps(func_to_io, nic_cap->num_qps);
518 hinic_io_free(func_to_io);
522 * hinic_hwdev_cb_register - register callback handler for MGMT events
523 * @hwdev: the NIC HW device
524 * @cmd: the mgmt event
525 * @handle: private data for the handler
526 * @handler: event handler
528 void hinic_hwdev_cb_register(struct hinic_hwdev *hwdev,
529 enum hinic_mgmt_msg_cmd cmd, void *handle,
530 void (*handler)(void *handle, void *buf_in,
531 u16 in_size, void *buf_out,
534 struct hinic_pfhwdev *pfhwdev;
535 struct hinic_nic_cb *nic_cb;
538 pfhwdev = container_of(hwdev, struct hinic_pfhwdev, hwdev);
540 cmd_cb = cmd - HINIC_MGMT_MSG_CMD_BASE;
541 nic_cb = &pfhwdev->nic_cb[cmd_cb];
543 nic_cb->handler = handler;
544 nic_cb->handle = handle;
545 nic_cb->cb_state = HINIC_CB_ENABLED;
549 * hinic_hwdev_cb_unregister - unregister callback handler for MGMT events
550 * @hwdev: the NIC HW device
551 * @cmd: the mgmt event
553 void hinic_hwdev_cb_unregister(struct hinic_hwdev *hwdev,
554 enum hinic_mgmt_msg_cmd cmd)
556 struct hinic_hwif *hwif = hwdev->hwif;
557 struct hinic_pfhwdev *pfhwdev;
558 struct hinic_nic_cb *nic_cb;
561 if (!HINIC_IS_PF(hwif) && !HINIC_IS_PPF(hwif))
564 pfhwdev = container_of(hwdev, struct hinic_pfhwdev, hwdev);
566 cmd_cb = cmd - HINIC_MGMT_MSG_CMD_BASE;
567 nic_cb = &pfhwdev->nic_cb[cmd_cb];
569 nic_cb->cb_state &= ~HINIC_CB_ENABLED;
571 while (nic_cb->cb_state & HINIC_CB_RUNNING)
574 nic_cb->handler = NULL;
578 * nic_mgmt_msg_handler - nic mgmt event handler
579 * @handle: private data for the handler
580 * @cmd: message command
581 * @buf_in: input buffer
582 * @in_size: input size
583 * @buf_out: output buffer
584 * @out_size: returned output size
586 static void nic_mgmt_msg_handler(void *handle, u8 cmd, void *buf_in,
587 u16 in_size, void *buf_out, u16 *out_size)
589 struct hinic_pfhwdev *pfhwdev = handle;
590 enum hinic_cb_state cb_state;
591 struct hinic_nic_cb *nic_cb;
592 struct hinic_hwdev *hwdev;
593 struct hinic_hwif *hwif;
594 struct pci_dev *pdev;
597 hwdev = &pfhwdev->hwdev;
601 if (cmd < HINIC_MGMT_MSG_CMD_BASE ||
602 cmd >= HINIC_MGMT_MSG_CMD_MAX) {
603 dev_err(&pdev->dev, "unknown L2NIC event, cmd = %d\n", cmd);
607 cmd_cb = cmd - HINIC_MGMT_MSG_CMD_BASE;
609 nic_cb = &pfhwdev->nic_cb[cmd_cb];
611 cb_state = cmpxchg(&nic_cb->cb_state,
613 HINIC_CB_ENABLED | HINIC_CB_RUNNING);
615 if (cb_state == HINIC_CB_ENABLED && nic_cb->handler)
616 nic_cb->handler(nic_cb->handle, buf_in,
617 in_size, buf_out, out_size);
619 dev_err(&pdev->dev, "Unhandled NIC Event %d\n", cmd);
621 nic_cb->cb_state &= ~HINIC_CB_RUNNING;
624 static void hinic_comm_recv_mgmt_self_cmd_reg(struct hinic_pfhwdev *pfhwdev,
626 comm_mgmt_self_msg_proc proc)
630 cmd_idx = pfhwdev->proc.cmd_num;
631 if (cmd_idx >= HINIC_COMM_SELF_CMD_MAX) {
632 dev_err(&pfhwdev->hwdev.hwif->pdev->dev,
633 "Register recv mgmt process failed, cmd: 0x%x\n", cmd);
637 pfhwdev->proc.info[cmd_idx].cmd = cmd;
638 pfhwdev->proc.info[cmd_idx].proc = proc;
639 pfhwdev->proc.cmd_num++;
642 static void hinic_comm_recv_mgmt_self_cmd_unreg(struct hinic_pfhwdev *pfhwdev,
647 cmd_idx = pfhwdev->proc.cmd_num;
648 if (cmd_idx >= HINIC_COMM_SELF_CMD_MAX) {
649 dev_err(&pfhwdev->hwdev.hwif->pdev->dev, "Unregister recv mgmt process failed, cmd: 0x%x\n",
654 for (cmd_idx = 0; cmd_idx < HINIC_COMM_SELF_CMD_MAX; cmd_idx++) {
655 if (cmd == pfhwdev->proc.info[cmd_idx].cmd) {
656 pfhwdev->proc.info[cmd_idx].cmd = 0;
657 pfhwdev->proc.info[cmd_idx].proc = NULL;
658 pfhwdev->proc.cmd_num--;
663 static void comm_mgmt_msg_handler(void *handle, u8 cmd, void *buf_in,
664 u16 in_size, void *buf_out, u16 *out_size)
666 struct hinic_pfhwdev *pfhwdev = handle;
669 for (cmd_idx = 0; cmd_idx < pfhwdev->proc.cmd_num; cmd_idx++) {
670 if (cmd == pfhwdev->proc.info[cmd_idx].cmd) {
671 if (!pfhwdev->proc.info[cmd_idx].proc) {
672 dev_warn(&pfhwdev->hwdev.hwif->pdev->dev,
673 "PF recv mgmt comm msg handle null, cmd: 0x%x\n",
676 pfhwdev->proc.info[cmd_idx].proc
677 (&pfhwdev->hwdev, buf_in, in_size,
685 dev_warn(&pfhwdev->hwdev.hwif->pdev->dev, "Received unknown mgmt cpu event: 0x%x\n",
691 /* pf fault report event */
692 static void pf_fault_event_handler(void *dev, void *buf_in, u16 in_size,
693 void *buf_out, u16 *out_size)
695 struct hinic_cmd_fault_event *fault_event = buf_in;
696 struct hinic_hwdev *hwdev = dev;
698 if (in_size != sizeof(*fault_event)) {
699 dev_err(&hwdev->hwif->pdev->dev, "Invalid fault event report, length: %d, should be %zu\n",
700 in_size, sizeof(*fault_event));
704 if (!hwdev->devlink_dev || IS_ERR_OR_NULL(hwdev->devlink_dev->hw_fault_reporter))
707 devlink_health_report(hwdev->devlink_dev->hw_fault_reporter,
708 "HW fatal error reported", &fault_event->event);
711 static void mgmt_watchdog_timeout_event_handler(void *dev,
712 void *buf_in, u16 in_size,
713 void *buf_out, u16 *out_size)
715 struct hinic_mgmt_watchdog_info *watchdog_info = buf_in;
716 struct hinic_hwdev *hwdev = dev;
718 if (in_size != sizeof(*watchdog_info)) {
719 dev_err(&hwdev->hwif->pdev->dev, "Invalid mgmt watchdog report, length: %d, should be %zu\n",
720 in_size, sizeof(*watchdog_info));
724 if (!hwdev->devlink_dev || IS_ERR_OR_NULL(hwdev->devlink_dev->fw_fault_reporter))
727 devlink_health_report(hwdev->devlink_dev->fw_fault_reporter,
728 "FW fatal error reported", watchdog_info);
732 * init_pfhwdev - Initialize the extended components of PF
733 * @pfhwdev: the HW device for PF
735 * Return 0 - success, negative - failure
737 static int init_pfhwdev(struct hinic_pfhwdev *pfhwdev)
739 struct hinic_hwdev *hwdev = &pfhwdev->hwdev;
740 struct hinic_hwif *hwif = hwdev->hwif;
741 struct pci_dev *pdev = hwif->pdev;
744 err = hinic_pf_to_mgmt_init(&pfhwdev->pf_to_mgmt, hwif);
746 dev_err(&pdev->dev, "Failed to initialize PF to MGMT channel\n");
750 err = hinic_func_to_func_init(hwdev);
752 dev_err(&hwif->pdev->dev, "Failed to init mailbox\n");
753 hinic_pf_to_mgmt_free(&pfhwdev->pf_to_mgmt);
757 if (!HINIC_IS_VF(hwif)) {
758 hinic_register_mgmt_msg_cb(&pfhwdev->pf_to_mgmt,
759 HINIC_MOD_L2NIC, pfhwdev,
760 nic_mgmt_msg_handler);
761 hinic_register_mgmt_msg_cb(&pfhwdev->pf_to_mgmt, HINIC_MOD_COMM,
762 pfhwdev, comm_mgmt_msg_handler);
763 hinic_comm_recv_mgmt_self_cmd_reg(pfhwdev,
764 HINIC_COMM_CMD_FAULT_REPORT,
765 pf_fault_event_handler);
766 hinic_comm_recv_mgmt_self_cmd_reg
767 (pfhwdev, HINIC_COMM_CMD_WATCHDOG_INFO,
768 mgmt_watchdog_timeout_event_handler);
770 hinic_register_vf_mbox_cb(hwdev, HINIC_MOD_L2NIC,
771 nic_mgmt_msg_handler);
774 hinic_set_pf_action(hwif, HINIC_PF_MGMT_ACTIVE);
775 hinic_devlink_register(hwdev->devlink_dev);
780 * free_pfhwdev - Free the extended components of PF
781 * @pfhwdev: the HW device for PF
783 static void free_pfhwdev(struct hinic_pfhwdev *pfhwdev)
785 struct hinic_hwdev *hwdev = &pfhwdev->hwdev;
787 hinic_devlink_unregister(hwdev->devlink_dev);
788 hinic_set_pf_action(hwdev->hwif, HINIC_PF_MGMT_INIT);
790 if (!HINIC_IS_VF(hwdev->hwif)) {
791 hinic_comm_recv_mgmt_self_cmd_unreg(pfhwdev,
792 HINIC_COMM_CMD_WATCHDOG_INFO);
793 hinic_comm_recv_mgmt_self_cmd_unreg(pfhwdev,
794 HINIC_COMM_CMD_FAULT_REPORT);
795 hinic_unregister_mgmt_msg_cb(&pfhwdev->pf_to_mgmt,
797 hinic_unregister_mgmt_msg_cb(&pfhwdev->pf_to_mgmt,
800 hinic_unregister_vf_mbox_cb(hwdev, HINIC_MOD_L2NIC);
803 hinic_func_to_func_free(hwdev);
805 hinic_pf_to_mgmt_free(&pfhwdev->pf_to_mgmt);
808 static int hinic_l2nic_reset(struct hinic_hwdev *hwdev)
810 struct hinic_cmd_l2nic_reset l2nic_reset = {0};
811 u16 out_size = sizeof(l2nic_reset);
812 struct hinic_pfhwdev *pfhwdev;
815 pfhwdev = container_of(hwdev, struct hinic_pfhwdev, hwdev);
817 l2nic_reset.func_id = HINIC_HWIF_FUNC_IDX(hwdev->hwif);
818 /* 0 represents standard l2nic reset flow */
819 l2nic_reset.reset_flag = 0;
821 err = hinic_msg_to_mgmt(&pfhwdev->pf_to_mgmt, HINIC_MOD_COMM,
822 HINIC_COMM_CMD_L2NIC_RESET, &l2nic_reset,
823 sizeof(l2nic_reset), &l2nic_reset,
824 &out_size, HINIC_MGMT_MSG_SYNC);
825 if (err || !out_size || l2nic_reset.status) {
826 dev_err(&hwdev->hwif->pdev->dev, "Failed to reset L2NIC resources, err: %d, status: 0x%x, out_size: 0x%x\n",
827 err, l2nic_reset.status, out_size);
834 static int hinic_get_interrupt_cfg(struct hinic_hwdev *hwdev,
835 struct hinic_msix_config *interrupt_info)
837 u16 out_size = sizeof(*interrupt_info);
838 struct hinic_pfhwdev *pfhwdev;
841 if (!hwdev || !interrupt_info)
844 pfhwdev = container_of(hwdev, struct hinic_pfhwdev, hwdev);
846 interrupt_info->func_id = HINIC_HWIF_FUNC_IDX(hwdev->hwif);
848 err = hinic_msg_to_mgmt(&pfhwdev->pf_to_mgmt, HINIC_MOD_COMM,
849 HINIC_COMM_CMD_MSI_CTRL_REG_RD_BY_UP,
850 interrupt_info, sizeof(*interrupt_info),
851 interrupt_info, &out_size, HINIC_MGMT_MSG_SYNC);
852 if (err || !out_size || interrupt_info->status) {
853 dev_err(&hwdev->hwif->pdev->dev, "Failed to get interrupt config, err: %d, status: 0x%x, out size: 0x%x\n",
854 err, interrupt_info->status, out_size);
861 int hinic_set_interrupt_cfg(struct hinic_hwdev *hwdev,
862 struct hinic_msix_config *interrupt_info)
864 u16 out_size = sizeof(*interrupt_info);
865 struct hinic_msix_config temp_info;
866 struct hinic_pfhwdev *pfhwdev;
872 pfhwdev = container_of(hwdev, struct hinic_pfhwdev, hwdev);
874 interrupt_info->func_id = HINIC_HWIF_FUNC_IDX(hwdev->hwif);
876 err = hinic_get_interrupt_cfg(hwdev, &temp_info);
880 interrupt_info->lli_credit_cnt = temp_info.lli_credit_cnt;
881 interrupt_info->lli_timer_cnt = temp_info.lli_timer_cnt;
883 err = hinic_msg_to_mgmt(&pfhwdev->pf_to_mgmt, HINIC_MOD_COMM,
884 HINIC_COMM_CMD_MSI_CTRL_REG_WR_BY_UP,
885 interrupt_info, sizeof(*interrupt_info),
886 interrupt_info, &out_size, HINIC_MGMT_MSG_SYNC);
887 if (err || !out_size || interrupt_info->status) {
888 dev_err(&hwdev->hwif->pdev->dev, "Failed to get interrupt config, err: %d, status: 0x%x, out size: 0x%x\n",
889 err, interrupt_info->status, out_size);
897 * hinic_init_hwdev - Initialize the NIC HW
898 * @pdev: the NIC pci device
899 * @devlink: the poniter of hinic devlink
901 * Return initialized NIC HW device
903 * Initialize the NIC HW device and return a pointer to it
905 struct hinic_hwdev *hinic_init_hwdev(struct pci_dev *pdev, struct devlink *devlink)
907 struct hinic_pfhwdev *pfhwdev;
908 struct hinic_hwdev *hwdev;
909 struct hinic_hwif *hwif;
912 hwif = devm_kzalloc(&pdev->dev, sizeof(*hwif), GFP_KERNEL);
914 return ERR_PTR(-ENOMEM);
916 err = hinic_init_hwif(hwif, pdev);
918 dev_err(&pdev->dev, "Failed to init HW interface\n");
922 pfhwdev = devm_kzalloc(&pdev->dev, sizeof(*pfhwdev), GFP_KERNEL);
925 goto err_pfhwdev_alloc;
928 hwdev = &pfhwdev->hwdev;
930 hwdev->devlink_dev = devlink_priv(devlink);
931 hwdev->devlink_dev->hwdev = hwdev;
933 err = init_msix(hwdev);
935 dev_err(&pdev->dev, "Failed to init msix\n");
939 err = wait_for_outbound_state(hwdev);
941 dev_warn(&pdev->dev, "outbound - disabled, try again\n");
942 hinic_outbound_state_set(hwif, HINIC_OUTBOUND_ENABLE);
945 num_aeqs = HINIC_HWIF_NUM_AEQS(hwif);
947 err = hinic_aeqs_init(&hwdev->aeqs, hwif, num_aeqs,
948 HINIC_DEFAULT_AEQ_LEN, HINIC_EQ_PAGE_SIZE,
949 hwdev->msix_entries);
951 dev_err(&pdev->dev, "Failed to init async event queues\n");
955 err = init_pfhwdev(pfhwdev);
957 dev_err(&pdev->dev, "Failed to init PF HW device\n");
958 goto err_init_pfhwdev;
961 err = hinic_l2nic_reset(hwdev);
963 goto err_l2nic_reset;
965 err = get_dev_cap(hwdev);
967 dev_err(&pdev->dev, "Failed to get device capabilities\n");
971 mutex_init(&hwdev->func_to_io.nic_cfg.cfg_mutex);
973 err = hinic_vf_func_init(hwdev);
975 dev_err(&pdev->dev, "Failed to init nic mbox\n");
976 goto err_vf_func_init;
979 err = init_fw_ctxt(hwdev);
981 dev_err(&pdev->dev, "Failed to init function table\n");
982 goto err_init_fw_ctxt;
985 err = set_resources_state(hwdev, HINIC_RES_ACTIVE);
987 dev_err(&pdev->dev, "Failed to set resources state\n");
988 goto err_resources_state;
995 hinic_vf_func_free(hwdev);
999 free_pfhwdev(pfhwdev);
1002 hinic_aeqs_free(&hwdev->aeqs);
1005 disable_msix(hwdev);
1009 hinic_free_hwif(hwif);
1012 return ERR_PTR(err);
1016 * hinic_free_hwdev - Free the NIC HW device
1017 * @hwdev: the NIC HW device
1019 void hinic_free_hwdev(struct hinic_hwdev *hwdev)
1021 struct hinic_pfhwdev *pfhwdev = container_of(hwdev,
1022 struct hinic_pfhwdev,
1025 set_resources_state(hwdev, HINIC_RES_CLEAN);
1027 hinic_vf_func_free(hwdev);
1029 free_pfhwdev(pfhwdev);
1031 hinic_aeqs_free(&hwdev->aeqs);
1033 disable_msix(hwdev);
1035 hinic_free_hwif(hwdev->hwif);
1039 * hinic_hwdev_num_qps - return the number QPs available for use
1040 * @hwdev: the NIC HW device
1042 * Return number QPs available for use
1044 int hinic_hwdev_num_qps(struct hinic_hwdev *hwdev)
1046 struct hinic_cap *nic_cap = &hwdev->nic_cap;
1048 return nic_cap->num_qps;
1052 * hinic_hwdev_get_sq - get SQ
1053 * @hwdev: the NIC HW device
1054 * @i: the position of the SQ
1056 * Return: the SQ in the i position
1058 struct hinic_sq *hinic_hwdev_get_sq(struct hinic_hwdev *hwdev, int i)
1060 struct hinic_func_to_io *func_to_io = &hwdev->func_to_io;
1061 struct hinic_qp *qp = &func_to_io->qps[i];
1063 if (i >= hinic_hwdev_num_qps(hwdev))
1070 * hinic_hwdev_get_rq - get RQ
1071 * @hwdev: the NIC HW device
1072 * @i: the position of the RQ
1074 * Return: the RQ in the i position
1076 struct hinic_rq *hinic_hwdev_get_rq(struct hinic_hwdev *hwdev, int i)
1078 struct hinic_func_to_io *func_to_io = &hwdev->func_to_io;
1079 struct hinic_qp *qp = &func_to_io->qps[i];
1081 if (i >= hinic_hwdev_num_qps(hwdev))
1088 * hinic_hwdev_msix_cnt_set - clear message attribute counters for msix entry
1089 * @hwdev: the NIC HW device
1090 * @msix_index: msix_index
1092 * Return 0 - Success, negative - Failure
1094 int hinic_hwdev_msix_cnt_set(struct hinic_hwdev *hwdev, u16 msix_index)
1096 return hinic_msix_attr_cnt_clear(hwdev->hwif, msix_index);
1100 * hinic_hwdev_msix_set - set message attribute for msix entry
1101 * @hwdev: the NIC HW device
1102 * @msix_index: msix_index
1103 * @pending_limit: the maximum pending interrupt events (unit 8)
1104 * @coalesc_timer: coalesc period for interrupt (unit 8 us)
1105 * @lli_timer_cfg: replenishing period for low latency credit (unit 8 us)
1106 * @lli_credit_limit: maximum credits for low latency msix messages (unit 8)
1107 * @resend_timer: maximum wait for resending msix (unit coalesc period)
1109 * Return 0 - Success, negative - Failure
1111 int hinic_hwdev_msix_set(struct hinic_hwdev *hwdev, u16 msix_index,
1112 u8 pending_limit, u8 coalesc_timer,
1113 u8 lli_timer_cfg, u8 lli_credit_limit,
1116 return hinic_msix_attr_set(hwdev->hwif, msix_index,
1117 pending_limit, coalesc_timer,
1118 lli_timer_cfg, lli_credit_limit,
1123 * hinic_hwdev_hw_ci_addr_set - set cons idx addr and attributes in HW for sq
1124 * @hwdev: the NIC HW device
1126 * @pending_limit: the maximum pending update ci events (unit 8)
1127 * @coalesc_timer: coalesc period for update ci (unit 8 us)
1129 * Return 0 - Success, negative - Failure
1131 int hinic_hwdev_hw_ci_addr_set(struct hinic_hwdev *hwdev, struct hinic_sq *sq,
1132 u8 pending_limit, u8 coalesc_timer)
1134 struct hinic_qp *qp = container_of(sq, struct hinic_qp, sq);
1135 struct hinic_hwif *hwif = hwdev->hwif;
1136 struct hinic_pfhwdev *pfhwdev;
1137 struct hinic_cmd_hw_ci hw_ci;
1139 hw_ci.dma_attr_off = 0;
1140 hw_ci.pending_limit = pending_limit;
1141 hw_ci.coalesc_timer = coalesc_timer;
1144 hw_ci.msix_entry_idx = sq->msix_entry;
1146 hw_ci.func_idx = HINIC_HWIF_FUNC_IDX(hwif);
1148 hw_ci.sq_id = qp->q_id;
1150 hw_ci.ci_addr = ADDR_IN_4BYTES(sq->hw_ci_dma_addr);
1152 pfhwdev = container_of(hwdev, struct hinic_pfhwdev, hwdev);
1153 return hinic_msg_to_mgmt(&pfhwdev->pf_to_mgmt,
1155 HINIC_COMM_CMD_SQ_HI_CI_SET,
1156 &hw_ci, sizeof(hw_ci), NULL,
1157 NULL, HINIC_MGMT_MSG_SYNC);
1161 * hinic_hwdev_set_msix_state- set msix state
1162 * @hwdev: the NIC HW device
1163 * @msix_index: IRQ corresponding index number
1167 void hinic_hwdev_set_msix_state(struct hinic_hwdev *hwdev, u16 msix_index,
1168 enum hinic_msix_state flag)
1170 hinic_set_msix_state(hwdev->hwif, msix_index, flag);
1173 int hinic_get_board_info(struct hinic_hwdev *hwdev,
1174 struct hinic_comm_board_info *board_info)
1176 u16 out_size = sizeof(*board_info);
1177 struct hinic_pfhwdev *pfhwdev;
1180 if (!hwdev || !board_info)
1183 pfhwdev = container_of(hwdev, struct hinic_pfhwdev, hwdev);
1185 err = hinic_msg_to_mgmt(&pfhwdev->pf_to_mgmt, HINIC_MOD_COMM,
1186 HINIC_COMM_CMD_GET_BOARD_INFO,
1187 board_info, sizeof(*board_info),
1188 board_info, &out_size, HINIC_MGMT_MSG_SYNC);
1189 if (err || board_info->status || !out_size) {
1190 dev_err(&hwdev->hwif->pdev->dev,
1191 "Failed to get board info, err: %d, status: 0x%x, out size: 0x%x\n",
1192 err, board_info->status, out_size);