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8#include "qlcnic_sriov.h"
9#include "qlcnic.h"
10#include "qlcnic_83xx_hw.h"
11#include <linux/types.h>
12
13#define QLC_BC_COMMAND 0
14#define QLC_BC_RESPONSE 1
15
16#define QLC_MBOX_RESP_TIMEOUT (10 * HZ)
17#define QLC_MBOX_CH_FREE_TIMEOUT (10 * HZ)
18
19#define QLC_BC_MSG 0
20#define QLC_BC_CFREE 1
21#define QLC_BC_FLR 2
22#define QLC_BC_HDR_SZ 16
23#define QLC_BC_PAYLOAD_SZ (1024 - QLC_BC_HDR_SZ)
24
25#define QLC_DEFAULT_RCV_DESCRIPTORS_SRIOV_VF 2048
26#define QLC_DEFAULT_JUMBO_RCV_DESCRIPTORS_SRIOV_VF 512
27
28#define QLC_83XX_VF_RESET_FAIL_THRESH 8
29#define QLC_BC_CMD_MAX_RETRY_CNT 5
30
31static void qlcnic_sriov_vf_free_mac_list(struct qlcnic_adapter *);
32static int qlcnic_sriov_alloc_bc_mbx_args(struct qlcnic_cmd_args *, u32);
33static void qlcnic_sriov_vf_poll_dev_state(struct work_struct *);
34static void qlcnic_sriov_vf_cancel_fw_work(struct qlcnic_adapter *);
35static void qlcnic_sriov_cleanup_transaction(struct qlcnic_bc_trans *);
36static int qlcnic_sriov_vf_mbx_op(struct qlcnic_adapter *,
37 struct qlcnic_cmd_args *);
38
39static struct qlcnic_hardware_ops qlcnic_sriov_vf_hw_ops = {
40 .read_crb = qlcnic_83xx_read_crb,
41 .write_crb = qlcnic_83xx_write_crb,
42 .read_reg = qlcnic_83xx_rd_reg_indirect,
43 .write_reg = qlcnic_83xx_wrt_reg_indirect,
44 .get_mac_address = qlcnic_83xx_get_mac_address,
45 .setup_intr = qlcnic_83xx_setup_intr,
46 .alloc_mbx_args = qlcnic_83xx_alloc_mbx_args,
47 .mbx_cmd = qlcnic_sriov_vf_mbx_op,
48 .get_func_no = qlcnic_83xx_get_func_no,
49 .api_lock = qlcnic_83xx_cam_lock,
50 .api_unlock = qlcnic_83xx_cam_unlock,
51 .process_lb_rcv_ring_diag = qlcnic_83xx_process_rcv_ring_diag,
52 .create_rx_ctx = qlcnic_83xx_create_rx_ctx,
53 .create_tx_ctx = qlcnic_83xx_create_tx_ctx,
54 .del_rx_ctx = qlcnic_83xx_del_rx_ctx,
55 .del_tx_ctx = qlcnic_83xx_del_tx_ctx,
56 .setup_link_event = qlcnic_83xx_setup_link_event,
57 .get_nic_info = qlcnic_83xx_get_nic_info,
58 .get_pci_info = qlcnic_83xx_get_pci_info,
59 .set_nic_info = qlcnic_83xx_set_nic_info,
60 .change_macvlan = qlcnic_83xx_sre_macaddr_change,
61 .napi_enable = qlcnic_83xx_napi_enable,
62 .napi_disable = qlcnic_83xx_napi_disable,
63 .config_intr_coal = qlcnic_83xx_config_intr_coal,
64 .config_rss = qlcnic_83xx_config_rss,
65 .config_hw_lro = qlcnic_83xx_config_hw_lro,
66 .config_promisc_mode = qlcnic_83xx_nic_set_promisc,
67 .change_l2_filter = qlcnic_83xx_change_l2_filter,
68 .get_board_info = qlcnic_83xx_get_port_info,
69 .free_mac_list = qlcnic_sriov_vf_free_mac_list,
70};
71
72static struct qlcnic_nic_template qlcnic_sriov_vf_ops = {
73 .config_bridged_mode = qlcnic_config_bridged_mode,
74 .config_led = qlcnic_config_led,
75 .cancel_idc_work = qlcnic_sriov_vf_cancel_fw_work,
76 .napi_add = qlcnic_83xx_napi_add,
77 .napi_del = qlcnic_83xx_napi_del,
78 .config_ipaddr = qlcnic_83xx_config_ipaddr,
79 .clear_legacy_intr = qlcnic_83xx_clear_legacy_intr,
80};
81
82static const struct qlcnic_mailbox_metadata qlcnic_sriov_bc_mbx_tbl[] = {
83 {QLCNIC_BC_CMD_CHANNEL_INIT, 2, 2},
84 {QLCNIC_BC_CMD_CHANNEL_TERM, 2, 2},
85 {QLCNIC_BC_CMD_GET_ACL, 3, 14},
86 {QLCNIC_BC_CMD_CFG_GUEST_VLAN, 2, 2},
87};
88
89static inline bool qlcnic_sriov_bc_msg_check(u32 val)
90{
91 return (val & (1 << QLC_BC_MSG)) ? true : false;
92}
93
94static inline bool qlcnic_sriov_channel_free_check(u32 val)
95{
96 return (val & (1 << QLC_BC_CFREE)) ? true : false;
97}
98
99static inline bool qlcnic_sriov_flr_check(u32 val)
100{
101 return (val & (1 << QLC_BC_FLR)) ? true : false;
102}
103
104static inline u8 qlcnic_sriov_target_func_id(u32 val)
105{
106 return (val >> 4) & 0xff;
107}
108
109static int qlcnic_sriov_virtid_fn(struct qlcnic_adapter *adapter, int vf_id)
110{
111 struct pci_dev *dev = adapter->pdev;
112 int pos;
113 u16 stride, offset;
114
115 if (qlcnic_sriov_vf_check(adapter))
116 return 0;
117
118 pos = pci_find_ext_capability(dev, PCI_EXT_CAP_ID_SRIOV);
119 pci_read_config_word(dev, pos + PCI_SRIOV_VF_OFFSET, &offset);
120 pci_read_config_word(dev, pos + PCI_SRIOV_VF_STRIDE, &stride);
121
122 return (dev->devfn + offset + stride * vf_id) & 0xff;
123}
124
125int qlcnic_sriov_init(struct qlcnic_adapter *adapter, int num_vfs)
126{
127 struct qlcnic_sriov *sriov;
128 struct qlcnic_back_channel *bc;
129 struct workqueue_struct *wq;
130 struct qlcnic_vport *vp;
131 struct qlcnic_vf_info *vf;
132 int err, i;
133
134 if (!qlcnic_sriov_enable_check(adapter))
135 return -EIO;
136
137 sriov = kzalloc(sizeof(struct qlcnic_sriov), GFP_KERNEL);
138 if (!sriov)
139 return -ENOMEM;
140
141 adapter->ahw->sriov = sriov;
142 sriov->num_vfs = num_vfs;
143 bc = &sriov->bc;
144 sriov->vf_info = kzalloc(sizeof(struct qlcnic_vf_info) *
145 num_vfs, GFP_KERNEL);
146 if (!sriov->vf_info) {
147 err = -ENOMEM;
148 goto qlcnic_free_sriov;
149 }
150
151 wq = create_singlethread_workqueue("bc-trans");
152 if (wq == NULL) {
153 err = -ENOMEM;
154 dev_err(&adapter->pdev->dev,
155 "Cannot create bc-trans workqueue\n");
156 goto qlcnic_free_vf_info;
157 }
158
159 bc->bc_trans_wq = wq;
160
161 wq = create_singlethread_workqueue("async");
162 if (wq == NULL) {
163 err = -ENOMEM;
164 dev_err(&adapter->pdev->dev, "Cannot create async workqueue\n");
165 goto qlcnic_destroy_trans_wq;
166 }
167
168 bc->bc_async_wq = wq;
169 INIT_LIST_HEAD(&bc->async_list);
170
171 for (i = 0; i < num_vfs; i++) {
172 vf = &sriov->vf_info[i];
173 vf->adapter = adapter;
174 vf->pci_func = qlcnic_sriov_virtid_fn(adapter, i);
175 mutex_init(&vf->send_cmd_lock);
176 INIT_LIST_HEAD(&vf->rcv_act.wait_list);
177 INIT_LIST_HEAD(&vf->rcv_pend.wait_list);
178 spin_lock_init(&vf->rcv_act.lock);
179 spin_lock_init(&vf->rcv_pend.lock);
180 init_completion(&vf->ch_free_cmpl);
181
182 if (qlcnic_sriov_pf_check(adapter)) {
183 vp = kzalloc(sizeof(struct qlcnic_vport), GFP_KERNEL);
184 if (!vp) {
185 err = -ENOMEM;
186 goto qlcnic_destroy_async_wq;
187 }
188 sriov->vf_info[i].vp = vp;
189 vp->max_tx_bw = MAX_BW;
190 random_ether_addr(vp->mac);
191 dev_info(&adapter->pdev->dev,
192 "MAC Address %pM is configured for VF %d\n",
193 vp->mac, i);
194 }
195 }
196
197 return 0;
198
199qlcnic_destroy_async_wq:
200 destroy_workqueue(bc->bc_async_wq);
201
202qlcnic_destroy_trans_wq:
203 destroy_workqueue(bc->bc_trans_wq);
204
205qlcnic_free_vf_info:
206 kfree(sriov->vf_info);
207
208qlcnic_free_sriov:
209 kfree(adapter->ahw->sriov);
210 return err;
211}
212
213void qlcnic_sriov_cleanup_list(struct qlcnic_trans_list *t_list)
214{
215 struct qlcnic_bc_trans *trans;
216 struct qlcnic_cmd_args cmd;
217 unsigned long flags;
218
219 spin_lock_irqsave(&t_list->lock, flags);
220
221 while (!list_empty(&t_list->wait_list)) {
222 trans = list_first_entry(&t_list->wait_list,
223 struct qlcnic_bc_trans, list);
224 list_del(&trans->list);
225 t_list->count--;
226 cmd.req.arg = (u32 *)trans->req_pay;
227 cmd.rsp.arg = (u32 *)trans->rsp_pay;
228 qlcnic_free_mbx_args(&cmd);
229 qlcnic_sriov_cleanup_transaction(trans);
230 }
231
232 spin_unlock_irqrestore(&t_list->lock, flags);
233}
234
235void __qlcnic_sriov_cleanup(struct qlcnic_adapter *adapter)
236{
237 struct qlcnic_sriov *sriov = adapter->ahw->sriov;
238 struct qlcnic_back_channel *bc = &sriov->bc;
239 struct qlcnic_vf_info *vf;
240 int i;
241
242 if (!qlcnic_sriov_enable_check(adapter))
243 return;
244
245 qlcnic_sriov_cleanup_async_list(bc);
246 destroy_workqueue(bc->bc_async_wq);
247
248 for (i = 0; i < sriov->num_vfs; i++) {
249 vf = &sriov->vf_info[i];
250 qlcnic_sriov_cleanup_list(&vf->rcv_pend);
251 cancel_work_sync(&vf->trans_work);
252 qlcnic_sriov_cleanup_list(&vf->rcv_act);
253 }
254
255 destroy_workqueue(bc->bc_trans_wq);
256
257 for (i = 0; i < sriov->num_vfs; i++)
258 kfree(sriov->vf_info[i].vp);
259
260 kfree(sriov->vf_info);
261 kfree(adapter->ahw->sriov);
262}
263
264static void qlcnic_sriov_vf_cleanup(struct qlcnic_adapter *adapter)
265{
266 qlcnic_sriov_channel_cfg_cmd(adapter, QLCNIC_BC_CMD_CHANNEL_TERM);
267 qlcnic_sriov_cfg_bc_intr(adapter, 0);
268 __qlcnic_sriov_cleanup(adapter);
269}
270
271void qlcnic_sriov_cleanup(struct qlcnic_adapter *adapter)
272{
273 if (qlcnic_sriov_pf_check(adapter))
274 qlcnic_sriov_pf_cleanup(adapter);
275
276 if (qlcnic_sriov_vf_check(adapter))
277 qlcnic_sriov_vf_cleanup(adapter);
278}
279
280static int qlcnic_sriov_post_bc_msg(struct qlcnic_adapter *adapter, u32 *hdr,
281 u32 *pay, u8 pci_func, u8 size)
282{
283 u32 rsp, mbx_val, fw_data, rsp_num, mbx_cmd, val, wait_time = 0;
284 struct qlcnic_hardware_context *ahw = adapter->ahw;
285 unsigned long flags;
286 u16 opcode;
287 u8 mbx_err_code;
288 int i, j;
289
290 opcode = ((struct qlcnic_bc_hdr *)hdr)->cmd_op;
291
292 if (!test_bit(QLC_83XX_MBX_READY, &adapter->ahw->idc.status)) {
293 dev_info(&adapter->pdev->dev,
294 "Mailbox cmd attempted, 0x%x\n", opcode);
295 dev_info(&adapter->pdev->dev, "Mailbox detached\n");
296 return 0;
297 }
298
299 spin_lock_irqsave(&ahw->mbx_lock, flags);
300
301 mbx_val = QLCRDX(ahw, QLCNIC_HOST_MBX_CTRL);
302 if (mbx_val) {
303 QLCDB(adapter, DRV, "Mailbox cmd attempted, 0x%x\n", opcode);
304 spin_unlock_irqrestore(&ahw->mbx_lock, flags);
305 return QLCNIC_RCODE_TIMEOUT;
306 }
307
308 val = size + (sizeof(struct qlcnic_bc_hdr) / sizeof(u32));
309 mbx_cmd = 0x31 | (val << 16) | (adapter->ahw->fw_hal_version << 29);
310
311 writel(mbx_cmd, QLCNIC_MBX_HOST(ahw, 0));
312 mbx_cmd = 0x1 | (1 << 4);
313
314 if (qlcnic_sriov_pf_check(adapter))
315 mbx_cmd |= (pci_func << 5);
316
317 writel(mbx_cmd, QLCNIC_MBX_HOST(ahw, 1));
318 for (i = 2, j = 0; j < (sizeof(struct qlcnic_bc_hdr) / sizeof(u32));
319 i++, j++) {
320 writel(*(hdr++), QLCNIC_MBX_HOST(ahw, i));
321 }
322 for (j = 0; j < size; j++, i++)
323 writel(*(pay++), QLCNIC_MBX_HOST(ahw, i));
324
325
326 QLCWRX(ahw, QLCNIC_HOST_MBX_CTRL, QLCNIC_SET_OWNER);
327
328
329
330
331
332poll:
333 rsp = qlcnic_83xx_mbx_poll(adapter, &wait_time);
334 if (rsp != QLCNIC_RCODE_TIMEOUT) {
335
336 fw_data = readl(QLCNIC_MBX_FW(ahw, 0));
337 if (fw_data & QLCNIC_MBX_ASYNC_EVENT) {
338 __qlcnic_83xx_process_aen(adapter);
339 goto poll;
340 }
341 mbx_err_code = QLCNIC_MBX_STATUS(fw_data);
342 rsp_num = QLCNIC_MBX_NUM_REGS(fw_data);
343 opcode = QLCNIC_MBX_RSP(fw_data);
344
345 switch (mbx_err_code) {
346 case QLCNIC_MBX_RSP_OK:
347 case QLCNIC_MBX_PORT_RSP_OK:
348 rsp = QLCNIC_RCODE_SUCCESS;
349 break;
350 default:
351 if (opcode == QLCNIC_CMD_CONFIG_MAC_VLAN) {
352 rsp = qlcnic_83xx_mac_rcode(adapter);
353 if (!rsp)
354 goto out;
355 }
356 dev_err(&adapter->pdev->dev,
357 "MBX command 0x%x failed with err:0x%x\n",
358 opcode, mbx_err_code);
359 rsp = mbx_err_code;
360 break;
361 }
362 goto out;
363 }
364
365 dev_err(&adapter->pdev->dev, "MBX command 0x%x timed out\n",
366 QLCNIC_MBX_RSP(mbx_cmd));
367 rsp = QLCNIC_RCODE_TIMEOUT;
368out:
369
370 QLCWRX(ahw, QLCNIC_FW_MBX_CTRL, QLCNIC_CLR_OWNER);
371 spin_unlock_irqrestore(&adapter->ahw->mbx_lock, flags);
372 return rsp;
373}
374
375static void qlcnic_sriov_vf_cfg_buff_desc(struct qlcnic_adapter *adapter)
376{
377 adapter->num_rxd = QLC_DEFAULT_RCV_DESCRIPTORS_SRIOV_VF;
378 adapter->max_rxd = MAX_RCV_DESCRIPTORS_10G;
379 adapter->num_jumbo_rxd = QLC_DEFAULT_JUMBO_RCV_DESCRIPTORS_SRIOV_VF;
380 adapter->max_jumbo_rxd = MAX_JUMBO_RCV_DESCRIPTORS_10G;
381 adapter->num_txd = MAX_CMD_DESCRIPTORS;
382 adapter->max_rds_rings = MAX_RDS_RINGS;
383}
384
385int qlcnic_sriov_get_vf_vport_info(struct qlcnic_adapter *adapter,
386 struct qlcnic_info *npar_info, u16 vport_id)
387{
388 struct device *dev = &adapter->pdev->dev;
389 struct qlcnic_cmd_args cmd;
390 int err;
391 u32 status;
392
393 err = qlcnic_alloc_mbx_args(&cmd, adapter, QLCNIC_CMD_GET_NIC_INFO);
394 if (err)
395 return err;
396
397 cmd.req.arg[1] = vport_id << 16 | 0x1;
398 err = qlcnic_issue_cmd(adapter, &cmd);
399 if (err) {
400 dev_err(&adapter->pdev->dev,
401 "Failed to get vport info, err=%d\n", err);
402 qlcnic_free_mbx_args(&cmd);
403 return err;
404 }
405
406 status = cmd.rsp.arg[2] & 0xffff;
407 if (status & BIT_0)
408 npar_info->min_tx_bw = MSW(cmd.rsp.arg[2]);
409 if (status & BIT_1)
410 npar_info->max_tx_bw = LSW(cmd.rsp.arg[3]);
411 if (status & BIT_2)
412 npar_info->max_tx_ques = MSW(cmd.rsp.arg[3]);
413 if (status & BIT_3)
414 npar_info->max_tx_mac_filters = LSW(cmd.rsp.arg[4]);
415 if (status & BIT_4)
416 npar_info->max_rx_mcast_mac_filters = MSW(cmd.rsp.arg[4]);
417 if (status & BIT_5)
418 npar_info->max_rx_ucast_mac_filters = LSW(cmd.rsp.arg[5]);
419 if (status & BIT_6)
420 npar_info->max_rx_ip_addr = MSW(cmd.rsp.arg[5]);
421 if (status & BIT_7)
422 npar_info->max_rx_lro_flow = LSW(cmd.rsp.arg[6]);
423 if (status & BIT_8)
424 npar_info->max_rx_status_rings = MSW(cmd.rsp.arg[6]);
425 if (status & BIT_9)
426 npar_info->max_rx_buf_rings = LSW(cmd.rsp.arg[7]);
427
428 npar_info->max_rx_ques = MSW(cmd.rsp.arg[7]);
429 npar_info->max_tx_vlan_keys = LSW(cmd.rsp.arg[8]);
430 npar_info->max_local_ipv6_addrs = MSW(cmd.rsp.arg[8]);
431 npar_info->max_remote_ipv6_addrs = LSW(cmd.rsp.arg[9]);
432
433 dev_info(dev, "\n\tmin_tx_bw: %d, max_tx_bw: %d max_tx_ques: %d,\n"
434 "\tmax_tx_mac_filters: %d max_rx_mcast_mac_filters: %d,\n"
435 "\tmax_rx_ucast_mac_filters: 0x%x, max_rx_ip_addr: %d,\n"
436 "\tmax_rx_lro_flow: %d max_rx_status_rings: %d,\n"
437 "\tmax_rx_buf_rings: %d, max_rx_ques: %d, max_tx_vlan_keys %d\n"
438 "\tlocal_ipv6_addr: %d, remote_ipv6_addr: %d\n",
439 npar_info->min_tx_bw, npar_info->max_tx_bw,
440 npar_info->max_tx_ques, npar_info->max_tx_mac_filters,
441 npar_info->max_rx_mcast_mac_filters,
442 npar_info->max_rx_ucast_mac_filters, npar_info->max_rx_ip_addr,
443 npar_info->max_rx_lro_flow, npar_info->max_rx_status_rings,
444 npar_info->max_rx_buf_rings, npar_info->max_rx_ques,
445 npar_info->max_tx_vlan_keys, npar_info->max_local_ipv6_addrs,
446 npar_info->max_remote_ipv6_addrs);
447
448 qlcnic_free_mbx_args(&cmd);
449 return err;
450}
451
452static int qlcnic_sriov_set_pvid_mode(struct qlcnic_adapter *adapter,
453 struct qlcnic_cmd_args *cmd)
454{
455 adapter->rx_pvid = (cmd->rsp.arg[1] >> 16) & 0xffff;
456 adapter->flags &= ~QLCNIC_TAGGING_ENABLED;
457 return 0;
458}
459
460static int qlcnic_sriov_set_guest_vlan_mode(struct qlcnic_adapter *adapter,
461 struct qlcnic_cmd_args *cmd)
462{
463 struct qlcnic_sriov *sriov = adapter->ahw->sriov;
464 int i, num_vlans;
465 u16 *vlans;
466
467 if (sriov->allowed_vlans)
468 return 0;
469
470 sriov->any_vlan = cmd->rsp.arg[2] & 0xf;
471 if (!sriov->any_vlan)
472 return 0;
473
474 sriov->num_allowed_vlans = cmd->rsp.arg[2] >> 16;
475 num_vlans = sriov->num_allowed_vlans;
476 sriov->allowed_vlans = kzalloc(sizeof(u16) * num_vlans, GFP_KERNEL);
477 if (!sriov->allowed_vlans)
478 return -ENOMEM;
479
480 vlans = (u16 *)&cmd->rsp.arg[3];
481 for (i = 0; i < num_vlans; i++)
482 sriov->allowed_vlans[i] = vlans[i];
483
484 return 0;
485}
486
487static int qlcnic_sriov_get_vf_acl(struct qlcnic_adapter *adapter)
488{
489 struct qlcnic_sriov *sriov = adapter->ahw->sriov;
490 struct qlcnic_cmd_args cmd;
491 int ret;
492
493 ret = qlcnic_sriov_alloc_bc_mbx_args(&cmd, QLCNIC_BC_CMD_GET_ACL);
494 if (ret)
495 return ret;
496
497 ret = qlcnic_issue_cmd(adapter, &cmd);
498 if (ret) {
499 dev_err(&adapter->pdev->dev, "Failed to get ACL, err=%d\n",
500 ret);
501 } else {
502 sriov->vlan_mode = cmd.rsp.arg[1] & 0x3;
503 switch (sriov->vlan_mode) {
504 case QLC_GUEST_VLAN_MODE:
505 ret = qlcnic_sriov_set_guest_vlan_mode(adapter, &cmd);
506 break;
507 case QLC_PVID_MODE:
508 ret = qlcnic_sriov_set_pvid_mode(adapter, &cmd);
509 break;
510 }
511 }
512
513 qlcnic_free_mbx_args(&cmd);
514 return ret;
515}
516
517static int qlcnic_sriov_vf_init_driver(struct qlcnic_adapter *adapter)
518{
519 struct qlcnic_info nic_info;
520 struct qlcnic_hardware_context *ahw = adapter->ahw;
521 int err;
522
523 err = qlcnic_sriov_get_vf_vport_info(adapter, &nic_info, 0);
524 if (err)
525 return err;
526
527 err = qlcnic_get_nic_info(adapter, &nic_info, ahw->pci_func);
528 if (err)
529 return -EIO;
530
531 err = qlcnic_sriov_get_vf_acl(adapter);
532 if (err)
533 return err;
534
535 if (qlcnic_83xx_get_port_info(adapter))
536 return -EIO;
537
538 qlcnic_sriov_vf_cfg_buff_desc(adapter);
539 adapter->flags |= QLCNIC_ADAPTER_INITIALIZED;
540 dev_info(&adapter->pdev->dev, "HAL Version: %d\n",
541 adapter->ahw->fw_hal_version);
542
543 ahw->physical_port = (u8) nic_info.phys_port;
544 ahw->switch_mode = nic_info.switch_mode;
545 ahw->max_mtu = nic_info.max_mtu;
546 ahw->op_mode = nic_info.op_mode;
547 ahw->capabilities = nic_info.capabilities;
548 return 0;
549}
550
551static int qlcnic_sriov_setup_vf(struct qlcnic_adapter *adapter,
552 int pci_using_dac)
553{
554 int err;
555
556 INIT_LIST_HEAD(&adapter->vf_mc_list);
557 if (!qlcnic_use_msi_x && !!qlcnic_use_msi)
558 dev_warn(&adapter->pdev->dev,
559 "83xx adapter do not support MSI interrupts\n");
560
561 err = qlcnic_setup_intr(adapter, 1);
562 if (err) {
563 dev_err(&adapter->pdev->dev, "Failed to setup interrupt\n");
564 goto err_out_disable_msi;
565 }
566
567 err = qlcnic_83xx_setup_mbx_intr(adapter);
568 if (err)
569 goto err_out_disable_msi;
570
571 err = qlcnic_sriov_init(adapter, 1);
572 if (err)
573 goto err_out_disable_mbx_intr;
574
575 err = qlcnic_sriov_cfg_bc_intr(adapter, 1);
576 if (err)
577 goto err_out_cleanup_sriov;
578
579 err = qlcnic_sriov_channel_cfg_cmd(adapter, QLCNIC_BC_CMD_CHANNEL_INIT);
580 if (err)
581 goto err_out_disable_bc_intr;
582
583 err = qlcnic_sriov_vf_init_driver(adapter);
584 if (err)
585 goto err_out_send_channel_term;
586
587 err = qlcnic_setup_netdev(adapter, adapter->netdev, pci_using_dac);
588 if (err)
589 goto err_out_send_channel_term;
590
591 pci_set_drvdata(adapter->pdev, adapter);
592 dev_info(&adapter->pdev->dev, "%s: XGbE port initialized\n",
593 adapter->netdev->name);
594 qlcnic_schedule_work(adapter, qlcnic_sriov_vf_poll_dev_state,
595 adapter->ahw->idc.delay);
596 return 0;
597
598err_out_send_channel_term:
599 qlcnic_sriov_channel_cfg_cmd(adapter, QLCNIC_BC_CMD_CHANNEL_TERM);
600
601err_out_disable_bc_intr:
602 qlcnic_sriov_cfg_bc_intr(adapter, 0);
603
604err_out_cleanup_sriov:
605 __qlcnic_sriov_cleanup(adapter);
606
607err_out_disable_mbx_intr:
608 qlcnic_83xx_free_mbx_intr(adapter);
609
610err_out_disable_msi:
611 qlcnic_teardown_intr(adapter);
612 return err;
613}
614
615static int qlcnic_sriov_check_dev_ready(struct qlcnic_adapter *adapter)
616{
617 u32 state;
618
619 do {
620 msleep(20);
621 if (++adapter->fw_fail_cnt > QLC_BC_CMD_MAX_RETRY_CNT)
622 return -EIO;
623 state = QLCRDX(adapter->ahw, QLC_83XX_IDC_DEV_STATE);
624 } while (state != QLC_83XX_IDC_DEV_READY);
625
626 return 0;
627}
628
629int qlcnic_sriov_vf_init(struct qlcnic_adapter *adapter, int pci_using_dac)
630{
631 struct qlcnic_hardware_context *ahw = adapter->ahw;
632 int err;
633
634 spin_lock_init(&ahw->mbx_lock);
635 set_bit(QLC_83XX_MBX_READY, &ahw->idc.status);
636 set_bit(QLC_83XX_MODULE_LOADED, &ahw->idc.status);
637 ahw->idc.delay = QLC_83XX_IDC_FW_POLL_DELAY;
638 ahw->reset_context = 0;
639 adapter->fw_fail_cnt = 0;
640 ahw->msix_supported = 1;
641 adapter->need_fw_reset = 0;
642 adapter->flags |= QLCNIC_TX_INTR_SHARED;
643
644 err = qlcnic_sriov_check_dev_ready(adapter);
645 if (err)
646 return err;
647
648 err = qlcnic_sriov_setup_vf(adapter, pci_using_dac);
649 if (err)
650 return err;
651
652 if (qlcnic_read_mac_addr(adapter))
653 dev_warn(&adapter->pdev->dev, "failed to read mac addr\n");
654
655 clear_bit(__QLCNIC_RESETTING, &adapter->state);
656 return 0;
657}
658
659void qlcnic_sriov_vf_set_ops(struct qlcnic_adapter *adapter)
660{
661 struct qlcnic_hardware_context *ahw = adapter->ahw;
662
663 ahw->op_mode = QLCNIC_SRIOV_VF_FUNC;
664 dev_info(&adapter->pdev->dev,
665 "HAL Version: %d Non Privileged SRIOV function\n",
666 ahw->fw_hal_version);
667 adapter->nic_ops = &qlcnic_sriov_vf_ops;
668 set_bit(__QLCNIC_SRIOV_ENABLE, &adapter->state);
669 return;
670}
671
672void qlcnic_sriov_vf_register_map(struct qlcnic_hardware_context *ahw)
673{
674 ahw->hw_ops = &qlcnic_sriov_vf_hw_ops;
675 ahw->reg_tbl = (u32 *)qlcnic_83xx_reg_tbl;
676 ahw->ext_reg_tbl = (u32 *)qlcnic_83xx_ext_reg_tbl;
677}
678
679static u32 qlcnic_sriov_get_bc_paysize(u32 real_pay_size, u8 curr_frag)
680{
681 u32 pay_size;
682
683 pay_size = real_pay_size / ((curr_frag + 1) * QLC_BC_PAYLOAD_SZ);
684
685 if (pay_size)
686 pay_size = QLC_BC_PAYLOAD_SZ;
687 else
688 pay_size = real_pay_size % QLC_BC_PAYLOAD_SZ;
689
690 return pay_size;
691}
692
693int qlcnic_sriov_func_to_index(struct qlcnic_adapter *adapter, u8 pci_func)
694{
695 struct qlcnic_vf_info *vf_info = adapter->ahw->sriov->vf_info;
696 u8 i;
697
698 if (qlcnic_sriov_vf_check(adapter))
699 return 0;
700
701 for (i = 0; i < adapter->ahw->sriov->num_vfs; i++) {
702 if (vf_info[i].pci_func == pci_func)
703 return i;
704 }
705
706 return -EINVAL;
707}
708
709static inline int qlcnic_sriov_alloc_bc_trans(struct qlcnic_bc_trans **trans)
710{
711 *trans = kzalloc(sizeof(struct qlcnic_bc_trans), GFP_ATOMIC);
712 if (!*trans)
713 return -ENOMEM;
714
715 init_completion(&(*trans)->resp_cmpl);
716 return 0;
717}
718
719static inline int qlcnic_sriov_alloc_bc_msg(struct qlcnic_bc_hdr **hdr,
720 u32 size)
721{
722 *hdr = kzalloc(sizeof(struct qlcnic_bc_hdr) * size, GFP_ATOMIC);
723 if (!*hdr)
724 return -ENOMEM;
725
726 return 0;
727}
728
729static int qlcnic_sriov_alloc_bc_mbx_args(struct qlcnic_cmd_args *mbx, u32 type)
730{
731 const struct qlcnic_mailbox_metadata *mbx_tbl;
732 int i, size;
733
734 mbx_tbl = qlcnic_sriov_bc_mbx_tbl;
735 size = ARRAY_SIZE(qlcnic_sriov_bc_mbx_tbl);
736
737 for (i = 0; i < size; i++) {
738 if (type == mbx_tbl[i].cmd) {
739 mbx->op_type = QLC_BC_CMD;
740 mbx->req.num = mbx_tbl[i].in_args;
741 mbx->rsp.num = mbx_tbl[i].out_args;
742 mbx->req.arg = kcalloc(mbx->req.num, sizeof(u32),
743 GFP_ATOMIC);
744 if (!mbx->req.arg)
745 return -ENOMEM;
746 mbx->rsp.arg = kcalloc(mbx->rsp.num, sizeof(u32),
747 GFP_ATOMIC);
748 if (!mbx->rsp.arg) {
749 kfree(mbx->req.arg);
750 mbx->req.arg = NULL;
751 return -ENOMEM;
752 }
753 memset(mbx->req.arg, 0, sizeof(u32) * mbx->req.num);
754 memset(mbx->rsp.arg, 0, sizeof(u32) * mbx->rsp.num);
755 mbx->req.arg[0] = (type | (mbx->req.num << 16) |
756 (3 << 29));
757 return 0;
758 }
759 }
760 return -EINVAL;
761}
762
763static int qlcnic_sriov_prepare_bc_hdr(struct qlcnic_bc_trans *trans,
764 struct qlcnic_cmd_args *cmd,
765 u16 seq, u8 msg_type)
766{
767 struct qlcnic_bc_hdr *hdr;
768 int i;
769 u32 num_regs, bc_pay_sz;
770 u16 remainder;
771 u8 cmd_op, num_frags, t_num_frags;
772
773 bc_pay_sz = QLC_BC_PAYLOAD_SZ;
774 if (msg_type == QLC_BC_COMMAND) {
775 trans->req_pay = (struct qlcnic_bc_payload *)cmd->req.arg;
776 trans->rsp_pay = (struct qlcnic_bc_payload *)cmd->rsp.arg;
777 num_regs = cmd->req.num;
778 trans->req_pay_size = (num_regs * 4);
779 num_regs = cmd->rsp.num;
780 trans->rsp_pay_size = (num_regs * 4);
781 cmd_op = cmd->req.arg[0] & 0xff;
782 remainder = (trans->req_pay_size) % (bc_pay_sz);
783 num_frags = (trans->req_pay_size) / (bc_pay_sz);
784 if (remainder)
785 num_frags++;
786 t_num_frags = num_frags;
787 if (qlcnic_sriov_alloc_bc_msg(&trans->req_hdr, num_frags))
788 return -ENOMEM;
789 remainder = (trans->rsp_pay_size) % (bc_pay_sz);
790 num_frags = (trans->rsp_pay_size) / (bc_pay_sz);
791 if (remainder)
792 num_frags++;
793 if (qlcnic_sriov_alloc_bc_msg(&trans->rsp_hdr, num_frags))
794 return -ENOMEM;
795 num_frags = t_num_frags;
796 hdr = trans->req_hdr;
797 } else {
798 cmd->req.arg = (u32 *)trans->req_pay;
799 cmd->rsp.arg = (u32 *)trans->rsp_pay;
800 cmd_op = cmd->req.arg[0] & 0xff;
801 remainder = (trans->rsp_pay_size) % (bc_pay_sz);
802 num_frags = (trans->rsp_pay_size) / (bc_pay_sz);
803 if (remainder)
804 num_frags++;
805 cmd->req.num = trans->req_pay_size / 4;
806 cmd->rsp.num = trans->rsp_pay_size / 4;
807 hdr = trans->rsp_hdr;
808 }
809
810 trans->trans_id = seq;
811 trans->cmd_id = cmd_op;
812 for (i = 0; i < num_frags; i++) {
813 hdr[i].version = 2;
814 hdr[i].msg_type = msg_type;
815 hdr[i].op_type = cmd->op_type;
816 hdr[i].num_cmds = 1;
817 hdr[i].num_frags = num_frags;
818 hdr[i].frag_num = i + 1;
819 hdr[i].cmd_op = cmd_op;
820 hdr[i].seq_id = seq;
821 }
822 return 0;
823}
824
825static void qlcnic_sriov_cleanup_transaction(struct qlcnic_bc_trans *trans)
826{
827 if (!trans)
828 return;
829 kfree(trans->req_hdr);
830 kfree(trans->rsp_hdr);
831 kfree(trans);
832}
833
834static int qlcnic_sriov_clear_trans(struct qlcnic_vf_info *vf,
835 struct qlcnic_bc_trans *trans, u8 type)
836{
837 struct qlcnic_trans_list *t_list;
838 unsigned long flags;
839 int ret = 0;
840
841 if (type == QLC_BC_RESPONSE) {
842 t_list = &vf->rcv_act;
843 spin_lock_irqsave(&t_list->lock, flags);
844 t_list->count--;
845 list_del(&trans->list);
846 if (t_list->count > 0)
847 ret = 1;
848 spin_unlock_irqrestore(&t_list->lock, flags);
849 }
850 if (type == QLC_BC_COMMAND) {
851 while (test_and_set_bit(QLC_BC_VF_SEND, &vf->state))
852 msleep(100);
853 vf->send_cmd = NULL;
854 clear_bit(QLC_BC_VF_SEND, &vf->state);
855 }
856 return ret;
857}
858
859static void qlcnic_sriov_schedule_bc_cmd(struct qlcnic_sriov *sriov,
860 struct qlcnic_vf_info *vf,
861 work_func_t func)
862{
863 if (test_bit(QLC_BC_VF_FLR, &vf->state) ||
864 vf->adapter->need_fw_reset)
865 return;
866
867 INIT_WORK(&vf->trans_work, func);
868 queue_work(sriov->bc.bc_trans_wq, &vf->trans_work);
869}
870
871static inline void qlcnic_sriov_wait_for_resp(struct qlcnic_bc_trans *trans)
872{
873 struct completion *cmpl = &trans->resp_cmpl;
874
875 if (wait_for_completion_timeout(cmpl, QLC_MBOX_RESP_TIMEOUT))
876 trans->trans_state = QLC_END;
877 else
878 trans->trans_state = QLC_ABORT;
879
880 return;
881}
882
883static void qlcnic_sriov_handle_multi_frags(struct qlcnic_bc_trans *trans,
884 u8 type)
885{
886 if (type == QLC_BC_RESPONSE) {
887 trans->curr_rsp_frag++;
888 if (trans->curr_rsp_frag < trans->rsp_hdr->num_frags)
889 trans->trans_state = QLC_INIT;
890 else
891 trans->trans_state = QLC_END;
892 } else {
893 trans->curr_req_frag++;
894 if (trans->curr_req_frag < trans->req_hdr->num_frags)
895 trans->trans_state = QLC_INIT;
896 else
897 trans->trans_state = QLC_WAIT_FOR_RESP;
898 }
899}
900
901static void qlcnic_sriov_wait_for_channel_free(struct qlcnic_bc_trans *trans,
902 u8 type)
903{
904 struct qlcnic_vf_info *vf = trans->vf;
905 struct completion *cmpl = &vf->ch_free_cmpl;
906
907 if (!wait_for_completion_timeout(cmpl, QLC_MBOX_CH_FREE_TIMEOUT)) {
908 trans->trans_state = QLC_ABORT;
909 return;
910 }
911
912 clear_bit(QLC_BC_VF_CHANNEL, &vf->state);
913 qlcnic_sriov_handle_multi_frags(trans, type);
914}
915
916static void qlcnic_sriov_pull_bc_msg(struct qlcnic_adapter *adapter,
917 u32 *hdr, u32 *pay, u32 size)
918{
919 struct qlcnic_hardware_context *ahw = adapter->ahw;
920 u32 fw_mbx;
921 u8 i, max = 2, hdr_size, j;
922
923 hdr_size = (sizeof(struct qlcnic_bc_hdr) / sizeof(u32));
924 max = (size / sizeof(u32)) + hdr_size;
925
926 fw_mbx = readl(QLCNIC_MBX_FW(ahw, 0));
927 for (i = 2, j = 0; j < hdr_size; i++, j++)
928 *(hdr++) = readl(QLCNIC_MBX_FW(ahw, i));
929 for (; j < max; i++, j++)
930 *(pay++) = readl(QLCNIC_MBX_FW(ahw, i));
931}
932
933static int __qlcnic_sriov_issue_bc_post(struct qlcnic_vf_info *vf)
934{
935 int ret = -EBUSY;
936 u32 timeout = 10000;
937
938 do {
939 if (!test_and_set_bit(QLC_BC_VF_CHANNEL, &vf->state)) {
940 ret = 0;
941 break;
942 }
943 mdelay(1);
944 } while (--timeout);
945
946 return ret;
947}
948
949static int qlcnic_sriov_issue_bc_post(struct qlcnic_bc_trans *trans, u8 type)
950{
951 struct qlcnic_vf_info *vf = trans->vf;
952 u32 pay_size, hdr_size;
953 u32 *hdr, *pay;
954 int ret;
955 u8 pci_func = trans->func_id;
956
957 if (__qlcnic_sriov_issue_bc_post(vf))
958 return -EBUSY;
959
960 if (type == QLC_BC_COMMAND) {
961 hdr = (u32 *)(trans->req_hdr + trans->curr_req_frag);
962 pay = (u32 *)(trans->req_pay + trans->curr_req_frag);
963 hdr_size = (sizeof(struct qlcnic_bc_hdr) / sizeof(u32));
964 pay_size = qlcnic_sriov_get_bc_paysize(trans->req_pay_size,
965 trans->curr_req_frag);
966 pay_size = (pay_size / sizeof(u32));
967 } else {
968 hdr = (u32 *)(trans->rsp_hdr + trans->curr_rsp_frag);
969 pay = (u32 *)(trans->rsp_pay + trans->curr_rsp_frag);
970 hdr_size = (sizeof(struct qlcnic_bc_hdr) / sizeof(u32));
971 pay_size = qlcnic_sriov_get_bc_paysize(trans->rsp_pay_size,
972 trans->curr_rsp_frag);
973 pay_size = (pay_size / sizeof(u32));
974 }
975
976 ret = qlcnic_sriov_post_bc_msg(vf->adapter, hdr, pay,
977 pci_func, pay_size);
978 return ret;
979}
980
981static int __qlcnic_sriov_send_bc_msg(struct qlcnic_bc_trans *trans,
982 struct qlcnic_vf_info *vf, u8 type)
983{
984 bool flag = true;
985 int err = -EIO;
986
987 while (flag) {
988 if (test_bit(QLC_BC_VF_FLR, &vf->state) ||
989 vf->adapter->need_fw_reset)
990 trans->trans_state = QLC_ABORT;
991
992 switch (trans->trans_state) {
993 case QLC_INIT:
994 trans->trans_state = QLC_WAIT_FOR_CHANNEL_FREE;
995 if (qlcnic_sriov_issue_bc_post(trans, type))
996 trans->trans_state = QLC_ABORT;
997 break;
998 case QLC_WAIT_FOR_CHANNEL_FREE:
999 qlcnic_sriov_wait_for_channel_free(trans, type);
1000 break;
1001 case QLC_WAIT_FOR_RESP:
1002 qlcnic_sriov_wait_for_resp(trans);
1003 break;
1004 case QLC_END:
1005 err = 0;
1006 flag = false;
1007 break;
1008 case QLC_ABORT:
1009 err = -EIO;
1010 flag = false;
1011 clear_bit(QLC_BC_VF_CHANNEL, &vf->state);
1012 break;
1013 default:
1014 err = -EIO;
1015 flag = false;
1016 }
1017 }
1018 return err;
1019}
1020
1021static int qlcnic_sriov_send_bc_cmd(struct qlcnic_adapter *adapter,
1022 struct qlcnic_bc_trans *trans, int pci_func)
1023{
1024 struct qlcnic_vf_info *vf;
1025 int err, index = qlcnic_sriov_func_to_index(adapter, pci_func);
1026
1027 if (index < 0)
1028 return -EIO;
1029
1030 vf = &adapter->ahw->sriov->vf_info[index];
1031 trans->vf = vf;
1032 trans->func_id = pci_func;
1033
1034 if (!test_bit(QLC_BC_VF_STATE, &vf->state)) {
1035 if (qlcnic_sriov_pf_check(adapter))
1036 return -EIO;
1037 if (qlcnic_sriov_vf_check(adapter) &&
1038 trans->cmd_id != QLCNIC_BC_CMD_CHANNEL_INIT)
1039 return -EIO;
1040 }
1041
1042 mutex_lock(&vf->send_cmd_lock);
1043 vf->send_cmd = trans;
1044 err = __qlcnic_sriov_send_bc_msg(trans, vf, QLC_BC_COMMAND);
1045 qlcnic_sriov_clear_trans(vf, trans, QLC_BC_COMMAND);
1046 mutex_unlock(&vf->send_cmd_lock);
1047 return err;
1048}
1049
1050static void __qlcnic_sriov_process_bc_cmd(struct qlcnic_adapter *adapter,
1051 struct qlcnic_bc_trans *trans,
1052 struct qlcnic_cmd_args *cmd)
1053{
1054#ifdef CONFIG_QLCNIC_SRIOV
1055 if (qlcnic_sriov_pf_check(adapter)) {
1056 qlcnic_sriov_pf_process_bc_cmd(adapter, trans, cmd);
1057 return;
1058 }
1059#endif
1060 cmd->rsp.arg[0] |= (0x9 << 25);
1061 return;
1062}
1063
1064static void qlcnic_sriov_process_bc_cmd(struct work_struct *work)
1065{
1066 struct qlcnic_vf_info *vf = container_of(work, struct qlcnic_vf_info,
1067 trans_work);
1068 struct qlcnic_bc_trans *trans = NULL;
1069 struct qlcnic_adapter *adapter = vf->adapter;
1070 struct qlcnic_cmd_args cmd;
1071 u8 req;
1072
1073 if (adapter->need_fw_reset)
1074 return;
1075
1076 if (test_bit(QLC_BC_VF_FLR, &vf->state))
1077 return;
1078
1079 trans = list_first_entry(&vf->rcv_act.wait_list,
1080 struct qlcnic_bc_trans, list);
1081 adapter = vf->adapter;
1082
1083 if (qlcnic_sriov_prepare_bc_hdr(trans, &cmd, trans->req_hdr->seq_id,
1084 QLC_BC_RESPONSE))
1085 goto cleanup_trans;
1086
1087 __qlcnic_sriov_process_bc_cmd(adapter, trans, &cmd);
1088 trans->trans_state = QLC_INIT;
1089 __qlcnic_sriov_send_bc_msg(trans, vf, QLC_BC_RESPONSE);
1090
1091cleanup_trans:
1092 qlcnic_free_mbx_args(&cmd);
1093 req = qlcnic_sriov_clear_trans(vf, trans, QLC_BC_RESPONSE);
1094 qlcnic_sriov_cleanup_transaction(trans);
1095 if (req)
1096 qlcnic_sriov_schedule_bc_cmd(adapter->ahw->sriov, vf,
1097 qlcnic_sriov_process_bc_cmd);
1098}
1099
1100static void qlcnic_sriov_handle_bc_resp(struct qlcnic_bc_hdr *hdr,
1101 struct qlcnic_vf_info *vf)
1102{
1103 struct qlcnic_bc_trans *trans;
1104 u32 pay_size;
1105
1106 if (test_and_set_bit(QLC_BC_VF_SEND, &vf->state))
1107 return;
1108
1109 trans = vf->send_cmd;
1110
1111 if (trans == NULL)
1112 goto clear_send;
1113
1114 if (trans->trans_id != hdr->seq_id)
1115 goto clear_send;
1116
1117 pay_size = qlcnic_sriov_get_bc_paysize(trans->rsp_pay_size,
1118 trans->curr_rsp_frag);
1119 qlcnic_sriov_pull_bc_msg(vf->adapter,
1120 (u32 *)(trans->rsp_hdr + trans->curr_rsp_frag),
1121 (u32 *)(trans->rsp_pay + trans->curr_rsp_frag),
1122 pay_size);
1123 if (++trans->curr_rsp_frag < trans->rsp_hdr->num_frags)
1124 goto clear_send;
1125
1126 complete(&trans->resp_cmpl);
1127
1128clear_send:
1129 clear_bit(QLC_BC_VF_SEND, &vf->state);
1130}
1131
1132int __qlcnic_sriov_add_act_list(struct qlcnic_sriov *sriov,
1133 struct qlcnic_vf_info *vf,
1134 struct qlcnic_bc_trans *trans)
1135{
1136 struct qlcnic_trans_list *t_list = &vf->rcv_act;
1137
1138 t_list->count++;
1139 list_add_tail(&trans->list, &t_list->wait_list);
1140 if (t_list->count == 1)
1141 qlcnic_sriov_schedule_bc_cmd(sriov, vf,
1142 qlcnic_sriov_process_bc_cmd);
1143 return 0;
1144}
1145
1146static int qlcnic_sriov_add_act_list(struct qlcnic_sriov *sriov,
1147 struct qlcnic_vf_info *vf,
1148 struct qlcnic_bc_trans *trans)
1149{
1150 struct qlcnic_trans_list *t_list = &vf->rcv_act;
1151
1152 spin_lock(&t_list->lock);
1153
1154 __qlcnic_sriov_add_act_list(sriov, vf, trans);
1155
1156 spin_unlock(&t_list->lock);
1157 return 0;
1158}
1159
1160static void qlcnic_sriov_handle_pending_trans(struct qlcnic_sriov *sriov,
1161 struct qlcnic_vf_info *vf,
1162 struct qlcnic_bc_hdr *hdr)
1163{
1164 struct qlcnic_bc_trans *trans = NULL;
1165 struct list_head *node;
1166 u32 pay_size, curr_frag;
1167 u8 found = 0, active = 0;
1168
1169 spin_lock(&vf->rcv_pend.lock);
1170 if (vf->rcv_pend.count > 0) {
1171 list_for_each(node, &vf->rcv_pend.wait_list) {
1172 trans = list_entry(node, struct qlcnic_bc_trans, list);
1173 if (trans->trans_id == hdr->seq_id) {
1174 found = 1;
1175 break;
1176 }
1177 }
1178 }
1179
1180 if (found) {
1181 curr_frag = trans->curr_req_frag;
1182 pay_size = qlcnic_sriov_get_bc_paysize(trans->req_pay_size,
1183 curr_frag);
1184 qlcnic_sriov_pull_bc_msg(vf->adapter,
1185 (u32 *)(trans->req_hdr + curr_frag),
1186 (u32 *)(trans->req_pay + curr_frag),
1187 pay_size);
1188 trans->curr_req_frag++;
1189 if (trans->curr_req_frag >= hdr->num_frags) {
1190 vf->rcv_pend.count--;
1191 list_del(&trans->list);
1192 active = 1;
1193 }
1194 }
1195 spin_unlock(&vf->rcv_pend.lock);
1196
1197 if (active)
1198 if (qlcnic_sriov_add_act_list(sriov, vf, trans))
1199 qlcnic_sriov_cleanup_transaction(trans);
1200
1201 return;
1202}
1203
1204static void qlcnic_sriov_handle_bc_cmd(struct qlcnic_sriov *sriov,
1205 struct qlcnic_bc_hdr *hdr,
1206 struct qlcnic_vf_info *vf)
1207{
1208 struct qlcnic_bc_trans *trans;
1209 struct qlcnic_adapter *adapter = vf->adapter;
1210 struct qlcnic_cmd_args cmd;
1211 u32 pay_size;
1212 int err;
1213 u8 cmd_op;
1214
1215 if (adapter->need_fw_reset)
1216 return;
1217
1218 if (!test_bit(QLC_BC_VF_STATE, &vf->state) &&
1219 hdr->op_type != QLC_BC_CMD &&
1220 hdr->cmd_op != QLCNIC_BC_CMD_CHANNEL_INIT)
1221 return;
1222
1223 if (hdr->frag_num > 1) {
1224 qlcnic_sriov_handle_pending_trans(sriov, vf, hdr);
1225 return;
1226 }
1227
1228 cmd_op = hdr->cmd_op;
1229 if (qlcnic_sriov_alloc_bc_trans(&trans))
1230 return;
1231
1232 if (hdr->op_type == QLC_BC_CMD)
1233 err = qlcnic_sriov_alloc_bc_mbx_args(&cmd, cmd_op);
1234 else
1235 err = qlcnic_alloc_mbx_args(&cmd, adapter, cmd_op);
1236
1237 if (err) {
1238 qlcnic_sriov_cleanup_transaction(trans);
1239 return;
1240 }
1241
1242 cmd.op_type = hdr->op_type;
1243 if (qlcnic_sriov_prepare_bc_hdr(trans, &cmd, hdr->seq_id,
1244 QLC_BC_COMMAND)) {
1245 qlcnic_free_mbx_args(&cmd);
1246 qlcnic_sriov_cleanup_transaction(trans);
1247 return;
1248 }
1249
1250 pay_size = qlcnic_sriov_get_bc_paysize(trans->req_pay_size,
1251 trans->curr_req_frag);
1252 qlcnic_sriov_pull_bc_msg(vf->adapter,
1253 (u32 *)(trans->req_hdr + trans->curr_req_frag),
1254 (u32 *)(trans->req_pay + trans->curr_req_frag),
1255 pay_size);
1256 trans->func_id = vf->pci_func;
1257 trans->vf = vf;
1258 trans->trans_id = hdr->seq_id;
1259 trans->curr_req_frag++;
1260
1261 if (qlcnic_sriov_soft_flr_check(adapter, trans, vf))
1262 return;
1263
1264 if (trans->curr_req_frag == trans->req_hdr->num_frags) {
1265 if (qlcnic_sriov_add_act_list(sriov, vf, trans)) {
1266 qlcnic_free_mbx_args(&cmd);
1267 qlcnic_sriov_cleanup_transaction(trans);
1268 }
1269 } else {
1270 spin_lock(&vf->rcv_pend.lock);
1271 list_add_tail(&trans->list, &vf->rcv_pend.wait_list);
1272 vf->rcv_pend.count++;
1273 spin_unlock(&vf->rcv_pend.lock);
1274 }
1275}
1276
1277static void qlcnic_sriov_handle_msg_event(struct qlcnic_sriov *sriov,
1278 struct qlcnic_vf_info *vf)
1279{
1280 struct qlcnic_bc_hdr hdr;
1281 u32 *ptr = (u32 *)&hdr;
1282 u8 msg_type, i;
1283
1284 for (i = 2; i < 6; i++)
1285 ptr[i - 2] = readl(QLCNIC_MBX_FW(vf->adapter->ahw, i));
1286 msg_type = hdr.msg_type;
1287
1288 switch (msg_type) {
1289 case QLC_BC_COMMAND:
1290 qlcnic_sriov_handle_bc_cmd(sriov, &hdr, vf);
1291 break;
1292 case QLC_BC_RESPONSE:
1293 qlcnic_sriov_handle_bc_resp(&hdr, vf);
1294 break;
1295 }
1296}
1297
1298static void qlcnic_sriov_handle_flr_event(struct qlcnic_sriov *sriov,
1299 struct qlcnic_vf_info *vf)
1300{
1301 struct qlcnic_adapter *adapter = vf->adapter;
1302
1303 if (qlcnic_sriov_pf_check(adapter))
1304 qlcnic_sriov_pf_handle_flr(sriov, vf);
1305 else
1306 dev_err(&adapter->pdev->dev,
1307 "Invalid event to VF. VF should not get FLR event\n");
1308}
1309
1310void qlcnic_sriov_handle_bc_event(struct qlcnic_adapter *adapter, u32 event)
1311{
1312 struct qlcnic_vf_info *vf;
1313 struct qlcnic_sriov *sriov;
1314 int index;
1315 u8 pci_func;
1316
1317 sriov = adapter->ahw->sriov;
1318 pci_func = qlcnic_sriov_target_func_id(event);
1319 index = qlcnic_sriov_func_to_index(adapter, pci_func);
1320
1321 if (index < 0)
1322 return;
1323
1324 vf = &sriov->vf_info[index];
1325 vf->pci_func = pci_func;
1326
1327 if (qlcnic_sriov_channel_free_check(event))
1328 complete(&vf->ch_free_cmpl);
1329
1330 if (qlcnic_sriov_flr_check(event)) {
1331 qlcnic_sriov_handle_flr_event(sriov, vf);
1332 return;
1333 }
1334
1335 if (qlcnic_sriov_bc_msg_check(event))
1336 qlcnic_sriov_handle_msg_event(sriov, vf);
1337}
1338
1339int qlcnic_sriov_cfg_bc_intr(struct qlcnic_adapter *adapter, u8 enable)
1340{
1341 struct qlcnic_cmd_args cmd;
1342 int err;
1343
1344 if (!test_bit(__QLCNIC_SRIOV_ENABLE, &adapter->state))
1345 return 0;
1346
1347 if (qlcnic_alloc_mbx_args(&cmd, adapter, QLCNIC_CMD_BC_EVENT_SETUP))
1348 return -ENOMEM;
1349
1350 if (enable)
1351 cmd.req.arg[1] = (1 << 4) | (1 << 5) | (1 << 6) | (1 << 7);
1352
1353 err = qlcnic_83xx_mbx_op(adapter, &cmd);
1354
1355 if (err != QLCNIC_RCODE_SUCCESS) {
1356 dev_err(&adapter->pdev->dev,
1357 "Failed to %s bc events, err=%d\n",
1358 (enable ? "enable" : "disable"), err);
1359 }
1360
1361 qlcnic_free_mbx_args(&cmd);
1362 return err;
1363}
1364
1365static int qlcnic_sriov_retry_bc_cmd(struct qlcnic_adapter *adapter,
1366 struct qlcnic_bc_trans *trans)
1367{
1368 u8 max = QLC_BC_CMD_MAX_RETRY_CNT;
1369 u32 state;
1370
1371 state = QLCRDX(adapter->ahw, QLC_83XX_IDC_DEV_STATE);
1372 if (state == QLC_83XX_IDC_DEV_READY) {
1373 msleep(20);
1374 clear_bit(QLC_BC_VF_CHANNEL, &trans->vf->state);
1375 trans->trans_state = QLC_INIT;
1376 if (++adapter->fw_fail_cnt > max)
1377 return -EIO;
1378 else
1379 return 0;
1380 }
1381
1382 return -EIO;
1383}
1384
1385static int qlcnic_sriov_vf_mbx_op(struct qlcnic_adapter *adapter,
1386 struct qlcnic_cmd_args *cmd)
1387{
1388 struct qlcnic_hardware_context *ahw = adapter->ahw;
1389 struct device *dev = &adapter->pdev->dev;
1390 struct qlcnic_bc_trans *trans;
1391 int err;
1392 u32 rsp_data, opcode, mbx_err_code, rsp;
1393 u16 seq = ++adapter->ahw->sriov->bc.trans_counter;
1394 u8 func = ahw->pci_func;
1395
1396 rsp = qlcnic_sriov_alloc_bc_trans(&trans);
1397 if (rsp)
1398 return rsp;
1399
1400 rsp = qlcnic_sriov_prepare_bc_hdr(trans, cmd, seq, QLC_BC_COMMAND);
1401 if (rsp)
1402 goto cleanup_transaction;
1403
1404retry:
1405 if (!test_bit(QLC_83XX_MBX_READY, &adapter->ahw->idc.status)) {
1406 rsp = -EIO;
1407 QLCDB(adapter, DRV, "MBX not Ready!(cmd 0x%x) for VF 0x%x\n",
1408 QLCNIC_MBX_RSP(cmd->req.arg[0]), func);
1409 goto err_out;
1410 }
1411
1412 err = qlcnic_sriov_send_bc_cmd(adapter, trans, func);
1413 if (err) {
1414 dev_err(dev, "MBX command 0x%x timed out for VF %d\n",
1415 (cmd->req.arg[0] & 0xffff), func);
1416 rsp = QLCNIC_RCODE_TIMEOUT;
1417
1418
1419
1420
1421 if ((trans->req_hdr->cmd_op == QLCNIC_BC_CMD_CHANNEL_INIT) &&
1422 !qlcnic_sriov_retry_bc_cmd(adapter, trans))
1423 goto retry;
1424
1425 goto err_out;
1426 }
1427
1428 rsp_data = cmd->rsp.arg[0];
1429 mbx_err_code = QLCNIC_MBX_STATUS(rsp_data);
1430 opcode = QLCNIC_MBX_RSP(cmd->req.arg[0]);
1431
1432 if ((mbx_err_code == QLCNIC_MBX_RSP_OK) ||
1433 (mbx_err_code == QLCNIC_MBX_PORT_RSP_OK)) {
1434 rsp = QLCNIC_RCODE_SUCCESS;
1435 } else {
1436 rsp = mbx_err_code;
1437 if (!rsp)
1438 rsp = 1;
1439 dev_err(dev,
1440 "MBX command 0x%x failed with err:0x%x for VF %d\n",
1441 opcode, mbx_err_code, func);
1442 }
1443
1444err_out:
1445 if (rsp == QLCNIC_RCODE_TIMEOUT) {
1446 ahw->reset_context = 1;
1447 adapter->need_fw_reset = 1;
1448 clear_bit(QLC_83XX_MBX_READY, &ahw->idc.status);
1449 }
1450
1451cleanup_transaction:
1452 qlcnic_sriov_cleanup_transaction(trans);
1453 return rsp;
1454}
1455
1456int qlcnic_sriov_channel_cfg_cmd(struct qlcnic_adapter *adapter, u8 cmd_op)
1457{
1458 struct qlcnic_cmd_args cmd;
1459 struct qlcnic_vf_info *vf = &adapter->ahw->sriov->vf_info[0];
1460 int ret;
1461
1462 if (qlcnic_sriov_alloc_bc_mbx_args(&cmd, cmd_op))
1463 return -ENOMEM;
1464
1465 ret = qlcnic_issue_cmd(adapter, &cmd);
1466 if (ret) {
1467 dev_err(&adapter->pdev->dev,
1468 "Failed bc channel %s %d\n", cmd_op ? "term" : "init",
1469 ret);
1470 goto out;
1471 }
1472
1473 cmd_op = (cmd.rsp.arg[0] & 0xff);
1474 if (cmd.rsp.arg[0] >> 25 == 2)
1475 return 2;
1476 if (cmd_op == QLCNIC_BC_CMD_CHANNEL_INIT)
1477 set_bit(QLC_BC_VF_STATE, &vf->state);
1478 else
1479 clear_bit(QLC_BC_VF_STATE, &vf->state);
1480
1481out:
1482 qlcnic_free_mbx_args(&cmd);
1483 return ret;
1484}
1485
1486void qlcnic_vf_add_mc_list(struct net_device *netdev, u16 vlan)
1487{
1488 struct qlcnic_adapter *adapter = netdev_priv(netdev);
1489 struct qlcnic_mac_list_s *cur;
1490 struct list_head *head, tmp_list;
1491
1492 INIT_LIST_HEAD(&tmp_list);
1493 head = &adapter->vf_mc_list;
1494 netif_addr_lock_bh(netdev);
1495
1496 while (!list_empty(head)) {
1497 cur = list_entry(head->next, struct qlcnic_mac_list_s, list);
1498 list_move(&cur->list, &tmp_list);
1499 }
1500
1501 netif_addr_unlock_bh(netdev);
1502
1503 while (!list_empty(&tmp_list)) {
1504 cur = list_entry((&tmp_list)->next,
1505 struct qlcnic_mac_list_s, list);
1506 qlcnic_nic_add_mac(adapter, cur->mac_addr, vlan);
1507 list_del(&cur->list);
1508 kfree(cur);
1509 }
1510}
1511
1512void qlcnic_sriov_cleanup_async_list(struct qlcnic_back_channel *bc)
1513{
1514 struct list_head *head = &bc->async_list;
1515 struct qlcnic_async_work_list *entry;
1516
1517 while (!list_empty(head)) {
1518 entry = list_entry(head->next, struct qlcnic_async_work_list,
1519 list);
1520 cancel_work_sync(&entry->work);
1521 list_del(&entry->list);
1522 kfree(entry);
1523 }
1524}
1525
1526static void qlcnic_sriov_vf_set_multi(struct net_device *netdev)
1527{
1528 struct qlcnic_adapter *adapter = netdev_priv(netdev);
1529 u16 vlan;
1530
1531 if (!test_bit(__QLCNIC_FW_ATTACHED, &adapter->state))
1532 return;
1533
1534 vlan = adapter->ahw->sriov->vlan;
1535 __qlcnic_set_multi(netdev, vlan);
1536}
1537
1538static void qlcnic_sriov_handle_async_multi(struct work_struct *work)
1539{
1540 struct qlcnic_async_work_list *entry;
1541 struct net_device *netdev;
1542
1543 entry = container_of(work, struct qlcnic_async_work_list, work);
1544 netdev = (struct net_device *)entry->ptr;
1545
1546 qlcnic_sriov_vf_set_multi(netdev);
1547 return;
1548}
1549
1550static struct qlcnic_async_work_list *
1551qlcnic_sriov_get_free_node_async_work(struct qlcnic_back_channel *bc)
1552{
1553 struct list_head *node;
1554 struct qlcnic_async_work_list *entry = NULL;
1555 u8 empty = 0;
1556
1557 list_for_each(node, &bc->async_list) {
1558 entry = list_entry(node, struct qlcnic_async_work_list, list);
1559 if (!work_pending(&entry->work)) {
1560 empty = 1;
1561 break;
1562 }
1563 }
1564
1565 if (!empty) {
1566 entry = kzalloc(sizeof(struct qlcnic_async_work_list),
1567 GFP_ATOMIC);
1568 if (entry == NULL)
1569 return NULL;
1570 list_add_tail(&entry->list, &bc->async_list);
1571 }
1572
1573 return entry;
1574}
1575
1576static void qlcnic_sriov_schedule_bc_async_work(struct qlcnic_back_channel *bc,
1577 work_func_t func, void *data)
1578{
1579 struct qlcnic_async_work_list *entry = NULL;
1580
1581 entry = qlcnic_sriov_get_free_node_async_work(bc);
1582 if (!entry)
1583 return;
1584
1585 entry->ptr = data;
1586 INIT_WORK(&entry->work, func);
1587 queue_work(bc->bc_async_wq, &entry->work);
1588}
1589
1590void qlcnic_sriov_vf_schedule_multi(struct net_device *netdev)
1591{
1592
1593 struct qlcnic_adapter *adapter = netdev_priv(netdev);
1594 struct qlcnic_back_channel *bc = &adapter->ahw->sriov->bc;
1595
1596 if (adapter->need_fw_reset)
1597 return;
1598
1599 qlcnic_sriov_schedule_bc_async_work(bc, qlcnic_sriov_handle_async_multi,
1600 netdev);
1601}
1602
1603static int qlcnic_sriov_vf_reinit_driver(struct qlcnic_adapter *adapter)
1604{
1605 int err;
1606
1607 set_bit(QLC_83XX_MBX_READY, &adapter->ahw->idc.status);
1608 qlcnic_83xx_enable_mbx_intrpt(adapter);
1609
1610 err = qlcnic_sriov_cfg_bc_intr(adapter, 1);
1611 if (err)
1612 return err;
1613
1614 err = qlcnic_sriov_channel_cfg_cmd(adapter, QLCNIC_BC_CMD_CHANNEL_INIT);
1615 if (err)
1616 goto err_out_cleanup_bc_intr;
1617
1618 err = qlcnic_sriov_vf_init_driver(adapter);
1619 if (err)
1620 goto err_out_term_channel;
1621
1622 return 0;
1623
1624err_out_term_channel:
1625 qlcnic_sriov_channel_cfg_cmd(adapter, QLCNIC_BC_CMD_CHANNEL_TERM);
1626
1627err_out_cleanup_bc_intr:
1628 qlcnic_sriov_cfg_bc_intr(adapter, 0);
1629 return err;
1630}
1631
1632static void qlcnic_sriov_vf_attach(struct qlcnic_adapter *adapter)
1633{
1634 struct net_device *netdev = adapter->netdev;
1635
1636 if (netif_running(netdev)) {
1637 if (!qlcnic_up(adapter, netdev))
1638 qlcnic_restore_indev_addr(netdev, NETDEV_UP);
1639 }
1640
1641 netif_device_attach(netdev);
1642}
1643
1644static void qlcnic_sriov_vf_detach(struct qlcnic_adapter *adapter)
1645{
1646 struct qlcnic_hardware_context *ahw = adapter->ahw;
1647 struct qlcnic_intrpt_config *intr_tbl = ahw->intr_tbl;
1648 struct net_device *netdev = adapter->netdev;
1649 u8 i, max_ints = ahw->num_msix - 1;
1650
1651 qlcnic_83xx_disable_mbx_intr(adapter);
1652 netif_device_detach(netdev);
1653 if (netif_running(netdev))
1654 qlcnic_down(adapter, netdev);
1655
1656 for (i = 0; i < max_ints; i++) {
1657 intr_tbl[i].id = i;
1658 intr_tbl[i].enabled = 0;
1659 intr_tbl[i].src = 0;
1660 }
1661 ahw->reset_context = 0;
1662}
1663
1664static int qlcnic_sriov_vf_handle_dev_ready(struct qlcnic_adapter *adapter)
1665{
1666 struct qlcnic_hardware_context *ahw = adapter->ahw;
1667 struct device *dev = &adapter->pdev->dev;
1668 struct qlc_83xx_idc *idc = &ahw->idc;
1669 u8 func = ahw->pci_func;
1670 u32 state;
1671
1672 if ((idc->prev_state == QLC_83XX_IDC_DEV_NEED_RESET) ||
1673 (idc->prev_state == QLC_83XX_IDC_DEV_INIT)) {
1674 if (!qlcnic_sriov_vf_reinit_driver(adapter)) {
1675 qlcnic_sriov_vf_attach(adapter);
1676 adapter->fw_fail_cnt = 0;
1677 dev_info(dev,
1678 "%s: Reinitalization of VF 0x%x done after FW reset\n",
1679 __func__, func);
1680 } else {
1681 dev_err(dev,
1682 "%s: Reinitialization of VF 0x%x failed after FW reset\n",
1683 __func__, func);
1684 state = QLCRDX(ahw, QLC_83XX_IDC_DEV_STATE);
1685 dev_info(dev, "Current state 0x%x after FW reset\n",
1686 state);
1687 }
1688 }
1689
1690 return 0;
1691}
1692
1693static int qlcnic_sriov_vf_handle_context_reset(struct qlcnic_adapter *adapter)
1694{
1695 struct qlcnic_hardware_context *ahw = adapter->ahw;
1696 struct device *dev = &adapter->pdev->dev;
1697 struct qlc_83xx_idc *idc = &ahw->idc;
1698 u8 func = ahw->pci_func;
1699 u32 state;
1700
1701 adapter->reset_ctx_cnt++;
1702
1703
1704 if (adapter->reset_ctx_cnt < 3) {
1705 adapter->need_fw_reset = 1;
1706 clear_bit(QLC_83XX_MBX_READY, &idc->status);
1707 dev_info(dev,
1708 "Resetting context, wait here to check if FW is in failed state\n");
1709 return 0;
1710 }
1711
1712
1713
1714
1715 if (adapter->reset_ctx_cnt > QLC_83XX_VF_RESET_FAIL_THRESH) {
1716 clear_bit(QLC_83XX_MODULE_LOADED, &idc->status);
1717 adapter->tx_timeo_cnt = 0;
1718 adapter->fw_fail_cnt = 0;
1719 adapter->reset_ctx_cnt = 0;
1720 qlcnic_sriov_vf_detach(adapter);
1721 dev_err(dev,
1722 "Device context resets have exceeded the threshold, device interface will be shutdown\n");
1723 return -EIO;
1724 }
1725
1726 dev_info(dev, "Resetting context of VF 0x%x\n", func);
1727 dev_info(dev, "%s: Context reset count %d for VF 0x%x\n",
1728 __func__, adapter->reset_ctx_cnt, func);
1729 set_bit(__QLCNIC_RESETTING, &adapter->state);
1730 adapter->need_fw_reset = 1;
1731 clear_bit(QLC_83XX_MBX_READY, &idc->status);
1732 qlcnic_sriov_vf_detach(adapter);
1733 adapter->need_fw_reset = 0;
1734
1735 if (!qlcnic_sriov_vf_reinit_driver(adapter)) {
1736 qlcnic_sriov_vf_attach(adapter);
1737 adapter->tx_timeo_cnt = 0;
1738 adapter->reset_ctx_cnt = 0;
1739 adapter->fw_fail_cnt = 0;
1740 dev_info(dev, "Done resetting context for VF 0x%x\n", func);
1741 } else {
1742 dev_err(dev, "%s: Reinitialization of VF 0x%x failed\n",
1743 __func__, func);
1744 state = QLCRDX(ahw, QLC_83XX_IDC_DEV_STATE);
1745 dev_info(dev, "%s: Current state 0x%x\n", __func__, state);
1746 }
1747
1748 return 0;
1749}
1750
1751static int qlcnic_sriov_vf_idc_ready_state(struct qlcnic_adapter *adapter)
1752{
1753 struct qlcnic_hardware_context *ahw = adapter->ahw;
1754 int ret = 0;
1755
1756 if (ahw->idc.prev_state != QLC_83XX_IDC_DEV_READY)
1757 ret = qlcnic_sriov_vf_handle_dev_ready(adapter);
1758 else if (ahw->reset_context)
1759 ret = qlcnic_sriov_vf_handle_context_reset(adapter);
1760
1761 clear_bit(__QLCNIC_RESETTING, &adapter->state);
1762 return ret;
1763}
1764
1765static int qlcnic_sriov_vf_idc_failed_state(struct qlcnic_adapter *adapter)
1766{
1767 struct qlc_83xx_idc *idc = &adapter->ahw->idc;
1768
1769 dev_err(&adapter->pdev->dev, "Device is in failed state\n");
1770 if (idc->prev_state == QLC_83XX_IDC_DEV_READY)
1771 qlcnic_sriov_vf_detach(adapter);
1772
1773 clear_bit(QLC_83XX_MODULE_LOADED, &idc->status);
1774 clear_bit(__QLCNIC_RESETTING, &adapter->state);
1775 return -EIO;
1776}
1777
1778static int
1779qlcnic_sriov_vf_idc_need_quiescent_state(struct qlcnic_adapter *adapter)
1780{
1781 struct qlc_83xx_idc *idc = &adapter->ahw->idc;
1782
1783 dev_info(&adapter->pdev->dev, "Device is in quiescent state\n");
1784 if (idc->prev_state == QLC_83XX_IDC_DEV_READY) {
1785 set_bit(__QLCNIC_RESETTING, &adapter->state);
1786 adapter->tx_timeo_cnt = 0;
1787 adapter->reset_ctx_cnt = 0;
1788 clear_bit(QLC_83XX_MBX_READY, &idc->status);
1789 qlcnic_sriov_vf_detach(adapter);
1790 }
1791
1792 return 0;
1793}
1794
1795static int qlcnic_sriov_vf_idc_init_reset_state(struct qlcnic_adapter *adapter)
1796{
1797 struct qlc_83xx_idc *idc = &adapter->ahw->idc;
1798 u8 func = adapter->ahw->pci_func;
1799
1800 if (idc->prev_state == QLC_83XX_IDC_DEV_READY) {
1801 dev_err(&adapter->pdev->dev,
1802 "Firmware hang detected by VF 0x%x\n", func);
1803 set_bit(__QLCNIC_RESETTING, &adapter->state);
1804 adapter->tx_timeo_cnt = 0;
1805 adapter->reset_ctx_cnt = 0;
1806 clear_bit(QLC_83XX_MBX_READY, &idc->status);
1807 qlcnic_sriov_vf_detach(adapter);
1808 }
1809 return 0;
1810}
1811
1812static int qlcnic_sriov_vf_idc_unknown_state(struct qlcnic_adapter *adapter)
1813{
1814 dev_err(&adapter->pdev->dev, "%s: Device in unknown state\n", __func__);
1815 return 0;
1816}
1817
1818static void qlcnic_sriov_vf_poll_dev_state(struct work_struct *work)
1819{
1820 struct qlcnic_adapter *adapter;
1821 struct qlc_83xx_idc *idc;
1822 int ret = 0;
1823
1824 adapter = container_of(work, struct qlcnic_adapter, fw_work.work);
1825 idc = &adapter->ahw->idc;
1826 idc->curr_state = QLCRDX(adapter->ahw, QLC_83XX_IDC_DEV_STATE);
1827
1828 switch (idc->curr_state) {
1829 case QLC_83XX_IDC_DEV_READY:
1830 ret = qlcnic_sriov_vf_idc_ready_state(adapter);
1831 break;
1832 case QLC_83XX_IDC_DEV_NEED_RESET:
1833 case QLC_83XX_IDC_DEV_INIT:
1834 ret = qlcnic_sriov_vf_idc_init_reset_state(adapter);
1835 break;
1836 case QLC_83XX_IDC_DEV_NEED_QUISCENT:
1837 ret = qlcnic_sriov_vf_idc_need_quiescent_state(adapter);
1838 break;
1839 case QLC_83XX_IDC_DEV_FAILED:
1840 ret = qlcnic_sriov_vf_idc_failed_state(adapter);
1841 break;
1842 case QLC_83XX_IDC_DEV_QUISCENT:
1843 break;
1844 default:
1845 ret = qlcnic_sriov_vf_idc_unknown_state(adapter);
1846 }
1847
1848 idc->prev_state = idc->curr_state;
1849 if (!ret && test_bit(QLC_83XX_MODULE_LOADED, &idc->status))
1850 qlcnic_schedule_work(adapter, qlcnic_sriov_vf_poll_dev_state,
1851 idc->delay);
1852}
1853
1854static void qlcnic_sriov_vf_cancel_fw_work(struct qlcnic_adapter *adapter)
1855{
1856 while (test_and_set_bit(__QLCNIC_RESETTING, &adapter->state))
1857 msleep(20);
1858
1859 clear_bit(QLC_83XX_MODULE_LOADED, &adapter->ahw->idc.status);
1860 clear_bit(__QLCNIC_RESETTING, &adapter->state);
1861 cancel_delayed_work_sync(&adapter->fw_work);
1862}
1863
1864static int qlcnic_sriov_validate_vlan_cfg(struct qlcnic_sriov *sriov,
1865 u16 vid, u8 enable)
1866{
1867 u16 vlan = sriov->vlan;
1868 u8 allowed = 0;
1869 int i;
1870
1871 if (sriov->vlan_mode != QLC_GUEST_VLAN_MODE)
1872 return -EINVAL;
1873
1874 if (enable) {
1875 if (vlan)
1876 return -EINVAL;
1877
1878 if (sriov->any_vlan) {
1879 for (i = 0; i < sriov->num_allowed_vlans; i++) {
1880 if (sriov->allowed_vlans[i] == vid)
1881 allowed = 1;
1882 }
1883
1884 if (!allowed)
1885 return -EINVAL;
1886 }
1887 } else {
1888 if (!vlan || vlan != vid)
1889 return -EINVAL;
1890 }
1891
1892 return 0;
1893}
1894
1895int qlcnic_sriov_cfg_vf_guest_vlan(struct qlcnic_adapter *adapter,
1896 u16 vid, u8 enable)
1897{
1898 struct qlcnic_sriov *sriov = adapter->ahw->sriov;
1899 struct qlcnic_cmd_args cmd;
1900 int ret;
1901
1902 if (vid == 0)
1903 return 0;
1904
1905 ret = qlcnic_sriov_validate_vlan_cfg(sriov, vid, enable);
1906 if (ret)
1907 return ret;
1908
1909 ret = qlcnic_sriov_alloc_bc_mbx_args(&cmd,
1910 QLCNIC_BC_CMD_CFG_GUEST_VLAN);
1911 if (ret)
1912 return ret;
1913
1914 cmd.req.arg[1] = (enable & 1) | vid << 16;
1915
1916 qlcnic_sriov_cleanup_async_list(&sriov->bc);
1917 ret = qlcnic_issue_cmd(adapter, &cmd);
1918 if (ret) {
1919 dev_err(&adapter->pdev->dev,
1920 "Failed to configure guest VLAN, err=%d\n", ret);
1921 } else {
1922 qlcnic_free_mac_list(adapter);
1923
1924 if (enable)
1925 sriov->vlan = vid;
1926 else
1927 sriov->vlan = 0;
1928
1929 qlcnic_sriov_vf_set_multi(adapter->netdev);
1930 }
1931
1932 qlcnic_free_mbx_args(&cmd);
1933 return ret;
1934}
1935
1936static void qlcnic_sriov_vf_free_mac_list(struct qlcnic_adapter *adapter)
1937{
1938 struct list_head *head = &adapter->mac_list;
1939 struct qlcnic_mac_list_s *cur;
1940 u16 vlan;
1941
1942 vlan = adapter->ahw->sriov->vlan;
1943
1944 while (!list_empty(head)) {
1945 cur = list_entry(head->next, struct qlcnic_mac_list_s, list);
1946 qlcnic_sre_macaddr_change(adapter, cur->mac_addr,
1947 vlan, QLCNIC_MAC_DEL);
1948 list_del(&cur->list);
1949 kfree(cur);
1950 }
1951}
1952
