1 // SPDX-License-Identifier: GPL-2.0-only
2 /*
3 * QLogic qlcnic NIC Driver
4 * Copyright (c) 2009-2013 QLogic Corporation
5 */
6
7 #include <linux/types.h>
8
9 #include "qlcnic_sriov.h"
10 #include "qlcnic.h"
11 #include "qlcnic_83xx_hw.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
31 static void qlcnic_sriov_handle_async_issue_cmd(struct work_struct *work);
32 static void qlcnic_sriov_vf_free_mac_list(struct qlcnic_adapter *);
33 static int qlcnic_sriov_alloc_bc_mbx_args(struct qlcnic_cmd_args *, u32);
34 static void qlcnic_sriov_vf_poll_dev_state(struct work_struct *);
35 static void qlcnic_sriov_vf_cancel_fw_work(struct qlcnic_adapter *);
36 static void qlcnic_sriov_cleanup_transaction(struct qlcnic_bc_trans *);
37 static int qlcnic_sriov_issue_cmd(struct qlcnic_adapter *,
38 struct qlcnic_cmd_args *);
39 static int qlcnic_sriov_channel_cfg_cmd(struct qlcnic_adapter *, u8);
40 static void qlcnic_sriov_process_bc_cmd(struct work_struct *);
41 static int qlcnic_sriov_vf_shutdown(struct pci_dev *);
42 static int qlcnic_sriov_vf_resume(struct qlcnic_adapter *);
43 static int qlcnic_sriov_async_issue_cmd(struct qlcnic_adapter *,
44 struct qlcnic_cmd_args *);
45
46 static struct qlcnic_hardware_ops qlcnic_sriov_vf_hw_ops = {
47 .read_crb = qlcnic_83xx_read_crb,
48 .write_crb = qlcnic_83xx_write_crb,
49 .read_reg = qlcnic_83xx_rd_reg_indirect,
50 .write_reg = qlcnic_83xx_wrt_reg_indirect,
51 .get_mac_address = qlcnic_83xx_get_mac_address,
52 .setup_intr = qlcnic_83xx_setup_intr,
53 .alloc_mbx_args = qlcnic_83xx_alloc_mbx_args,
54 .mbx_cmd = qlcnic_sriov_issue_cmd,
55 .get_func_no = qlcnic_83xx_get_func_no,
56 .api_lock = qlcnic_83xx_cam_lock,
57 .api_unlock = qlcnic_83xx_cam_unlock,
58 .process_lb_rcv_ring_diag = qlcnic_83xx_process_rcv_ring_diag,
59 .create_rx_ctx = qlcnic_83xx_create_rx_ctx,
60 .create_tx_ctx = qlcnic_83xx_create_tx_ctx,
61 .del_rx_ctx = qlcnic_83xx_del_rx_ctx,
62 .del_tx_ctx = qlcnic_83xx_del_tx_ctx,
63 .setup_link_event = qlcnic_83xx_setup_link_event,
64 .get_nic_info = qlcnic_83xx_get_nic_info,
65 .get_pci_info = qlcnic_83xx_get_pci_info,
66 .set_nic_info = qlcnic_83xx_set_nic_info,
67 .change_macvlan = qlcnic_83xx_sre_macaddr_change,
68 .napi_enable = qlcnic_83xx_napi_enable,
69 .napi_disable = qlcnic_83xx_napi_disable,
70 .config_intr_coal = qlcnic_83xx_config_intr_coal,
71 .config_rss = qlcnic_83xx_config_rss,
72 .config_hw_lro = qlcnic_83xx_config_hw_lro,
73 .config_promisc_mode = qlcnic_83xx_nic_set_promisc,
74 .change_l2_filter = qlcnic_83xx_change_l2_filter,
75 .get_board_info = qlcnic_83xx_get_port_info,
76 .free_mac_list = qlcnic_sriov_vf_free_mac_list,
77 .enable_sds_intr = qlcnic_83xx_enable_sds_intr,
78 .disable_sds_intr = qlcnic_83xx_disable_sds_intr,
79 .encap_rx_offload = qlcnic_83xx_encap_rx_offload,
80 .encap_tx_offload = qlcnic_83xx_encap_tx_offload,
81 };
82
83 static struct qlcnic_nic_template qlcnic_sriov_vf_ops = {
84 .config_bridged_mode = qlcnic_config_bridged_mode,
85 .config_led = qlcnic_config_led,
86 .cancel_idc_work = qlcnic_sriov_vf_cancel_fw_work,
87 .napi_add = qlcnic_83xx_napi_add,
88 .napi_del = qlcnic_83xx_napi_del,
89 .shutdown = qlcnic_sriov_vf_shutdown,
90 .resume = qlcnic_sriov_vf_resume,
91 .config_ipaddr = qlcnic_83xx_config_ipaddr,
92 .clear_legacy_intr = qlcnic_83xx_clear_legacy_intr,
93 };
94
95 static const struct qlcnic_mailbox_metadata qlcnic_sriov_bc_mbx_tbl[] = {
96 {QLCNIC_BC_CMD_CHANNEL_INIT, 2, 2},
97 {QLCNIC_BC_CMD_CHANNEL_TERM, 2, 2},
98 {QLCNIC_BC_CMD_GET_ACL, 3, 14},
99 {QLCNIC_BC_CMD_CFG_GUEST_VLAN, 2, 2},
100 };
101
qlcnic_sriov_bc_msg_check(u32 val)102 static inline bool qlcnic_sriov_bc_msg_check(u32 val)
103 {
104 return (val & (1 << QLC_BC_MSG)) ? true : false;
105 }
106
qlcnic_sriov_channel_free_check(u32 val)107 static inline bool qlcnic_sriov_channel_free_check(u32 val)
108 {
109 return (val & (1 << QLC_BC_CFREE)) ? true : false;
110 }
111
qlcnic_sriov_flr_check(u32 val)112 static inline bool qlcnic_sriov_flr_check(u32 val)
113 {
114 return (val & (1 << QLC_BC_FLR)) ? true : false;
115 }
116
qlcnic_sriov_target_func_id(u32 val)117 static inline u8 qlcnic_sriov_target_func_id(u32 val)
118 {
119 return (val >> 4) & 0xff;
120 }
121
qlcnic_sriov_virtid_fn(struct qlcnic_adapter * adapter,int vf_id)122 static int qlcnic_sriov_virtid_fn(struct qlcnic_adapter *adapter, int vf_id)
123 {
124 struct pci_dev *dev = adapter->pdev;
125 int pos;
126 u16 stride, offset;
127
128 if (qlcnic_sriov_vf_check(adapter))
129 return 0;
130
131 pos = pci_find_ext_capability(dev, PCI_EXT_CAP_ID_SRIOV);
132 if (!pos)
133 return 0;
134 pci_read_config_word(dev, pos + PCI_SRIOV_VF_OFFSET, &offset);
135 pci_read_config_word(dev, pos + PCI_SRIOV_VF_STRIDE, &stride);
136
137 return (dev->devfn + offset + stride * vf_id) & 0xff;
138 }
139
qlcnic_sriov_init(struct qlcnic_adapter * adapter,int num_vfs)140 int qlcnic_sriov_init(struct qlcnic_adapter *adapter, int num_vfs)
141 {
142 struct qlcnic_sriov *sriov;
143 struct qlcnic_back_channel *bc;
144 struct workqueue_struct *wq;
145 struct qlcnic_vport *vp;
146 struct qlcnic_vf_info *vf;
147 int err, i;
148
149 if (!qlcnic_sriov_enable_check(adapter))
150 return -EIO;
151
152 sriov = kzalloc(sizeof(struct qlcnic_sriov), GFP_KERNEL);
153 if (!sriov)
154 return -ENOMEM;
155
156 adapter->ahw->sriov = sriov;
157 sriov->num_vfs = num_vfs;
158 bc = &sriov->bc;
159 sriov->vf_info = kcalloc(num_vfs, sizeof(struct qlcnic_vf_info),
160 GFP_KERNEL);
161 if (!sriov->vf_info) {
162 err = -ENOMEM;
163 goto qlcnic_free_sriov;
164 }
165
166 wq = create_singlethread_workqueue("bc-trans");
167 if (wq == NULL) {
168 err = -ENOMEM;
169 dev_err(&adapter->pdev->dev,
170 "Cannot create bc-trans workqueue\n");
171 goto qlcnic_free_vf_info;
172 }
173
174 bc->bc_trans_wq = wq;
175
176 wq = create_singlethread_workqueue("async");
177 if (wq == NULL) {
178 err = -ENOMEM;
179 dev_err(&adapter->pdev->dev, "Cannot create async workqueue\n");
180 goto qlcnic_destroy_trans_wq;
181 }
182
183 bc->bc_async_wq = wq;
184 INIT_LIST_HEAD(&bc->async_cmd_list);
185 INIT_WORK(&bc->vf_async_work, qlcnic_sriov_handle_async_issue_cmd);
186 spin_lock_init(&bc->queue_lock);
187 bc->adapter = adapter;
188
189 for (i = 0; i < num_vfs; i++) {
190 vf = &sriov->vf_info[i];
191 vf->adapter = adapter;
192 vf->pci_func = qlcnic_sriov_virtid_fn(adapter, i);
193 mutex_init(&vf->send_cmd_lock);
194 spin_lock_init(&vf->vlan_list_lock);
195 INIT_LIST_HEAD(&vf->rcv_act.wait_list);
196 INIT_LIST_HEAD(&vf->rcv_pend.wait_list);
197 spin_lock_init(&vf->rcv_act.lock);
198 spin_lock_init(&vf->rcv_pend.lock);
199 init_completion(&vf->ch_free_cmpl);
200
201 INIT_WORK(&vf->trans_work, qlcnic_sriov_process_bc_cmd);
202
203 if (qlcnic_sriov_pf_check(adapter)) {
204 vp = kzalloc(sizeof(struct qlcnic_vport), GFP_KERNEL);
205 if (!vp) {
206 err = -ENOMEM;
207 goto qlcnic_destroy_async_wq;
208 }
209 sriov->vf_info[i].vp = vp;
210 vp->vlan_mode = QLC_GUEST_VLAN_MODE;
211 vp->max_tx_bw = MAX_BW;
212 vp->min_tx_bw = MIN_BW;
213 vp->spoofchk = false;
214 eth_random_addr(vp->mac);
215 dev_info(&adapter->pdev->dev,
216 "MAC Address %pM is configured for VF %d\n",
217 vp->mac, i);
218 }
219 }
220
221 return 0;
222
223 qlcnic_destroy_async_wq:
224 while (i--)
225 kfree(sriov->vf_info[i].vp);
226 destroy_workqueue(bc->bc_async_wq);
227
228 qlcnic_destroy_trans_wq:
229 destroy_workqueue(bc->bc_trans_wq);
230
231 qlcnic_free_vf_info:
232 kfree(sriov->vf_info);
233
234 qlcnic_free_sriov:
235 kfree(adapter->ahw->sriov);
236 return err;
237 }
238
qlcnic_sriov_cleanup_list(struct qlcnic_trans_list * t_list)239 void qlcnic_sriov_cleanup_list(struct qlcnic_trans_list *t_list)
240 {
241 struct qlcnic_bc_trans *trans;
242 struct qlcnic_cmd_args cmd;
243 unsigned long flags;
244
245 spin_lock_irqsave(&t_list->lock, flags);
246
247 while (!list_empty(&t_list->wait_list)) {
248 trans = list_first_entry(&t_list->wait_list,
249 struct qlcnic_bc_trans, list);
250 list_del(&trans->list);
251 t_list->count--;
252 cmd.req.arg = (u32 *)trans->req_pay;
253 cmd.rsp.arg = (u32 *)trans->rsp_pay;
254 qlcnic_free_mbx_args(&cmd);
255 qlcnic_sriov_cleanup_transaction(trans);
256 }
257
258 spin_unlock_irqrestore(&t_list->lock, flags);
259 }
260
__qlcnic_sriov_cleanup(struct qlcnic_adapter * adapter)261 void __qlcnic_sriov_cleanup(struct qlcnic_adapter *adapter)
262 {
263 struct qlcnic_sriov *sriov = adapter->ahw->sriov;
264 struct qlcnic_back_channel *bc = &sriov->bc;
265 struct qlcnic_vf_info *vf;
266 int i;
267
268 if (!qlcnic_sriov_enable_check(adapter))
269 return;
270
271 qlcnic_sriov_cleanup_async_list(bc);
272 destroy_workqueue(bc->bc_async_wq);
273
274 for (i = 0; i < sriov->num_vfs; i++) {
275 vf = &sriov->vf_info[i];
276 qlcnic_sriov_cleanup_list(&vf->rcv_pend);
277 cancel_work_sync(&vf->trans_work);
278 qlcnic_sriov_cleanup_list(&vf->rcv_act);
279 }
280
281 destroy_workqueue(bc->bc_trans_wq);
282
283 for (i = 0; i < sriov->num_vfs; i++)
284 kfree(sriov->vf_info[i].vp);
285
286 kfree(sriov->vf_info);
287 kfree(adapter->ahw->sriov);
288 }
289
qlcnic_sriov_vf_cleanup(struct qlcnic_adapter * adapter)290 static void qlcnic_sriov_vf_cleanup(struct qlcnic_adapter *adapter)
291 {
292 qlcnic_sriov_channel_cfg_cmd(adapter, QLCNIC_BC_CMD_CHANNEL_TERM);
293 qlcnic_sriov_cfg_bc_intr(adapter, 0);
294 __qlcnic_sriov_cleanup(adapter);
295 }
296
qlcnic_sriov_cleanup(struct qlcnic_adapter * adapter)297 void qlcnic_sriov_cleanup(struct qlcnic_adapter *adapter)
298 {
299 if (!test_bit(__QLCNIC_SRIOV_ENABLE, &adapter->state))
300 return;
301
302 qlcnic_sriov_free_vlans(adapter);
303
304 if (qlcnic_sriov_pf_check(adapter))
305 qlcnic_sriov_pf_cleanup(adapter);
306
307 if (qlcnic_sriov_vf_check(adapter))
308 qlcnic_sriov_vf_cleanup(adapter);
309 }
310
qlcnic_sriov_post_bc_msg(struct qlcnic_adapter * adapter,u32 * hdr,u32 * pay,u8 pci_func,u8 size)311 static int qlcnic_sriov_post_bc_msg(struct qlcnic_adapter *adapter, u32 *hdr,
312 u32 *pay, u8 pci_func, u8 size)
313 {
314 struct qlcnic_hardware_context *ahw = adapter->ahw;
315 struct qlcnic_mailbox *mbx = ahw->mailbox;
316 struct qlcnic_cmd_args cmd;
317 unsigned long timeout;
318 int err;
319
320 memset(&cmd, 0, sizeof(struct qlcnic_cmd_args));
321 cmd.hdr = hdr;
322 cmd.pay = pay;
323 cmd.pay_size = size;
324 cmd.func_num = pci_func;
325 cmd.op_type = QLC_83XX_MBX_POST_BC_OP;
326 cmd.cmd_op = ((struct qlcnic_bc_hdr *)hdr)->cmd_op;
327
328 err = mbx->ops->enqueue_cmd(adapter, &cmd, &timeout);
329 if (err) {
330 dev_err(&adapter->pdev->dev,
331 "%s: Mailbox not available, cmd_op=0x%x, cmd_type=0x%x, pci_func=0x%x, op_mode=0x%x\n",
332 __func__, cmd.cmd_op, cmd.type, ahw->pci_func,
333 ahw->op_mode);
334 return err;
335 }
336
337 if (!wait_for_completion_timeout(&cmd.completion, timeout)) {
338 dev_err(&adapter->pdev->dev,
339 "%s: Mailbox command timed out, cmd_op=0x%x, cmd_type=0x%x, pci_func=0x%x, op_mode=0x%x\n",
340 __func__, cmd.cmd_op, cmd.type, ahw->pci_func,
341 ahw->op_mode);
342 flush_workqueue(mbx->work_q);
343 }
344
345 return cmd.rsp_opcode;
346 }
347
qlcnic_sriov_vf_cfg_buff_desc(struct qlcnic_adapter * adapter)348 static void qlcnic_sriov_vf_cfg_buff_desc(struct qlcnic_adapter *adapter)
349 {
350 adapter->num_rxd = QLC_DEFAULT_RCV_DESCRIPTORS_SRIOV_VF;
351 adapter->max_rxd = MAX_RCV_DESCRIPTORS_10G;
352 adapter->num_jumbo_rxd = QLC_DEFAULT_JUMBO_RCV_DESCRIPTORS_SRIOV_VF;
353 adapter->max_jumbo_rxd = MAX_JUMBO_RCV_DESCRIPTORS_10G;
354 adapter->num_txd = MAX_CMD_DESCRIPTORS;
355 adapter->max_rds_rings = MAX_RDS_RINGS;
356 }
357
qlcnic_sriov_get_vf_vport_info(struct qlcnic_adapter * adapter,struct qlcnic_info * npar_info,u16 vport_id)358 int qlcnic_sriov_get_vf_vport_info(struct qlcnic_adapter *adapter,
359 struct qlcnic_info *npar_info, u16 vport_id)
360 {
361 struct device *dev = &adapter->pdev->dev;
362 struct qlcnic_cmd_args cmd;
363 int err;
364 u32 status;
365
366 err = qlcnic_alloc_mbx_args(&cmd, adapter, QLCNIC_CMD_GET_NIC_INFO);
367 if (err)
368 return err;
369
370 cmd.req.arg[1] = vport_id << 16 | 0x1;
371 err = qlcnic_issue_cmd(adapter, &cmd);
372 if (err) {
373 dev_err(&adapter->pdev->dev,
374 "Failed to get vport info, err=%d\n", err);
375 qlcnic_free_mbx_args(&cmd);
376 return err;
377 }
378
379 status = cmd.rsp.arg[2] & 0xffff;
380 if (status & BIT_0)
381 npar_info->min_tx_bw = MSW(cmd.rsp.arg[2]);
382 if (status & BIT_1)
383 npar_info->max_tx_bw = LSW(cmd.rsp.arg[3]);
384 if (status & BIT_2)
385 npar_info->max_tx_ques = MSW(cmd.rsp.arg[3]);
386 if (status & BIT_3)
387 npar_info->max_tx_mac_filters = LSW(cmd.rsp.arg[4]);
388 if (status & BIT_4)
389 npar_info->max_rx_mcast_mac_filters = MSW(cmd.rsp.arg[4]);
390 if (status & BIT_5)
391 npar_info->max_rx_ucast_mac_filters = LSW(cmd.rsp.arg[5]);
392 if (status & BIT_6)
393 npar_info->max_rx_ip_addr = MSW(cmd.rsp.arg[5]);
394 if (status & BIT_7)
395 npar_info->max_rx_lro_flow = LSW(cmd.rsp.arg[6]);
396 if (status & BIT_8)
397 npar_info->max_rx_status_rings = MSW(cmd.rsp.arg[6]);
398 if (status & BIT_9)
399 npar_info->max_rx_buf_rings = LSW(cmd.rsp.arg[7]);
400
401 npar_info->max_rx_ques = MSW(cmd.rsp.arg[7]);
402 npar_info->max_tx_vlan_keys = LSW(cmd.rsp.arg[8]);
403 npar_info->max_local_ipv6_addrs = MSW(cmd.rsp.arg[8]);
404 npar_info->max_remote_ipv6_addrs = LSW(cmd.rsp.arg[9]);
405
406 dev_info(dev, "\n\tmin_tx_bw: %d, max_tx_bw: %d max_tx_ques: %d,\n"
407 "\tmax_tx_mac_filters: %d max_rx_mcast_mac_filters: %d,\n"
408 "\tmax_rx_ucast_mac_filters: 0x%x, max_rx_ip_addr: %d,\n"
409 "\tmax_rx_lro_flow: %d max_rx_status_rings: %d,\n"
410 "\tmax_rx_buf_rings: %d, max_rx_ques: %d, max_tx_vlan_keys %d\n"
411 "\tlocal_ipv6_addr: %d, remote_ipv6_addr: %d\n",
412 npar_info->min_tx_bw, npar_info->max_tx_bw,
413 npar_info->max_tx_ques, npar_info->max_tx_mac_filters,
414 npar_info->max_rx_mcast_mac_filters,
415 npar_info->max_rx_ucast_mac_filters, npar_info->max_rx_ip_addr,
416 npar_info->max_rx_lro_flow, npar_info->max_rx_status_rings,
417 npar_info->max_rx_buf_rings, npar_info->max_rx_ques,
418 npar_info->max_tx_vlan_keys, npar_info->max_local_ipv6_addrs,
419 npar_info->max_remote_ipv6_addrs);
420
421 qlcnic_free_mbx_args(&cmd);
422 return err;
423 }
424
qlcnic_sriov_set_pvid_mode(struct qlcnic_adapter * adapter,struct qlcnic_cmd_args * cmd)425 static int qlcnic_sriov_set_pvid_mode(struct qlcnic_adapter *adapter,
426 struct qlcnic_cmd_args *cmd)
427 {
428 adapter->rx_pvid = MSW(cmd->rsp.arg[1]) & 0xffff;
429 adapter->flags &= ~QLCNIC_TAGGING_ENABLED;
430 return 0;
431 }
432
qlcnic_sriov_set_guest_vlan_mode(struct qlcnic_adapter * adapter,struct qlcnic_cmd_args * cmd)433 static int qlcnic_sriov_set_guest_vlan_mode(struct qlcnic_adapter *adapter,
434 struct qlcnic_cmd_args *cmd)
435 {
436 struct qlcnic_sriov *sriov = adapter->ahw->sriov;
437 int i, num_vlans, ret;
438 u16 *vlans;
439
440 if (sriov->allowed_vlans)
441 return 0;
442
443 sriov->any_vlan = cmd->rsp.arg[2] & 0xf;
444 sriov->num_allowed_vlans = cmd->rsp.arg[2] >> 16;
445 dev_info(&adapter->pdev->dev, "Number of allowed Guest VLANs = %d\n",
446 sriov->num_allowed_vlans);
447
448 ret = qlcnic_sriov_alloc_vlans(adapter);
449 if (ret)
450 return ret;
451
452 if (!sriov->any_vlan)
453 return 0;
454
455 num_vlans = sriov->num_allowed_vlans;
456 sriov->allowed_vlans = kcalloc(num_vlans, sizeof(u16), GFP_KERNEL);
457 if (!sriov->allowed_vlans) {
458 qlcnic_sriov_free_vlans(adapter);
459 return -ENOMEM;
460 }
461
462 vlans = (u16 *)&cmd->rsp.arg[3];
463 for (i = 0; i < num_vlans; i++)
464 sriov->allowed_vlans[i] = vlans[i];
465
466 return 0;
467 }
468
qlcnic_sriov_get_vf_acl(struct qlcnic_adapter * adapter)469 static int qlcnic_sriov_get_vf_acl(struct qlcnic_adapter *adapter)
470 {
471 struct qlcnic_sriov *sriov = adapter->ahw->sriov;
472 struct qlcnic_cmd_args cmd;
473 int ret = 0;
474
475 memset(&cmd, 0, sizeof(cmd));
476 ret = qlcnic_sriov_alloc_bc_mbx_args(&cmd, QLCNIC_BC_CMD_GET_ACL);
477 if (ret)
478 return ret;
479
480 ret = qlcnic_issue_cmd(adapter, &cmd);
481 if (ret) {
482 dev_err(&adapter->pdev->dev, "Failed to get ACL, err=%d\n",
483 ret);
484 } else {
485 sriov->vlan_mode = cmd.rsp.arg[1] & 0x3;
486 switch (sriov->vlan_mode) {
487 case QLC_GUEST_VLAN_MODE:
488 ret = qlcnic_sriov_set_guest_vlan_mode(adapter, &cmd);
489 break;
490 case QLC_PVID_MODE:
491 ret = qlcnic_sriov_set_pvid_mode(adapter, &cmd);
492 break;
493 }
494 }
495
496 qlcnic_free_mbx_args(&cmd);
497 return ret;
498 }
499
qlcnic_sriov_vf_init_driver(struct qlcnic_adapter * adapter)500 static int qlcnic_sriov_vf_init_driver(struct qlcnic_adapter *adapter)
501 {
502 struct qlcnic_hardware_context *ahw = adapter->ahw;
503 struct qlcnic_info nic_info;
504 int err;
505
506 err = qlcnic_sriov_get_vf_vport_info(adapter, &nic_info, 0);
507 if (err)
508 return err;
509
510 ahw->max_mc_count = nic_info.max_rx_mcast_mac_filters;
511
512 err = qlcnic_get_nic_info(adapter, &nic_info, ahw->pci_func);
513 if (err)
514 return -EIO;
515
516 if (qlcnic_83xx_get_port_info(adapter))
517 return -EIO;
518
519 qlcnic_sriov_vf_cfg_buff_desc(adapter);
520 adapter->flags |= QLCNIC_ADAPTER_INITIALIZED;
521 dev_info(&adapter->pdev->dev, "HAL Version: %d\n",
522 adapter->ahw->fw_hal_version);
523
524 ahw->physical_port = (u8) nic_info.phys_port;
525 ahw->switch_mode = nic_info.switch_mode;
526 ahw->max_mtu = nic_info.max_mtu;
527 ahw->op_mode = nic_info.op_mode;
528 ahw->capabilities = nic_info.capabilities;
529 return 0;
530 }
531
qlcnic_sriov_setup_vf(struct qlcnic_adapter * adapter)532 static int qlcnic_sriov_setup_vf(struct qlcnic_adapter *adapter)
533 {
534 int err;
535
536 adapter->flags |= QLCNIC_VLAN_FILTERING;
537 adapter->ahw->total_nic_func = 1;
538 INIT_LIST_HEAD(&adapter->vf_mc_list);
539 if (!qlcnic_use_msi_x && !!qlcnic_use_msi)
540 dev_warn(&adapter->pdev->dev,
541 "Device does not support MSI interrupts\n");
542
543 /* compute and set default and max tx/sds rings */
544 qlcnic_set_tx_ring_count(adapter, QLCNIC_SINGLE_RING);
545 qlcnic_set_sds_ring_count(adapter, QLCNIC_SINGLE_RING);
546
547 err = qlcnic_setup_intr(adapter);
548 if (err) {
549 dev_err(&adapter->pdev->dev, "Failed to setup interrupt\n");
550 goto err_out_disable_msi;
551 }
552
553 err = qlcnic_83xx_setup_mbx_intr(adapter);
554 if (err)
555 goto err_out_disable_msi;
556
557 err = qlcnic_sriov_init(adapter, 1);
558 if (err)
559 goto err_out_disable_mbx_intr;
560
561 err = qlcnic_sriov_cfg_bc_intr(adapter, 1);
562 if (err)
563 goto err_out_cleanup_sriov;
564
565 err = qlcnic_sriov_channel_cfg_cmd(adapter, QLCNIC_BC_CMD_CHANNEL_INIT);
566 if (err)
567 goto err_out_disable_bc_intr;
568
569 err = qlcnic_sriov_vf_init_driver(adapter);
570 if (err)
571 goto err_out_send_channel_term;
572
573 err = qlcnic_sriov_get_vf_acl(adapter);
574 if (err)
575 goto err_out_send_channel_term;
576
577 err = qlcnic_setup_netdev(adapter, adapter->netdev);
578 if (err)
579 goto err_out_send_channel_term;
580
581 pci_set_drvdata(adapter->pdev, adapter);
582 dev_info(&adapter->pdev->dev, "%s: XGbE port initialized\n",
583 adapter->netdev->name);
584
585 qlcnic_schedule_work(adapter, qlcnic_sriov_vf_poll_dev_state,
586 adapter->ahw->idc.delay);
587 return 0;
588
589 err_out_send_channel_term:
590 qlcnic_sriov_channel_cfg_cmd(adapter, QLCNIC_BC_CMD_CHANNEL_TERM);
591
592 err_out_disable_bc_intr:
593 qlcnic_sriov_cfg_bc_intr(adapter, 0);
594
595 err_out_cleanup_sriov:
596 __qlcnic_sriov_cleanup(adapter);
597
598 err_out_disable_mbx_intr:
599 qlcnic_83xx_free_mbx_intr(adapter);
600
601 err_out_disable_msi:
602 qlcnic_teardown_intr(adapter);
603 return err;
604 }
605
qlcnic_sriov_check_dev_ready(struct qlcnic_adapter * adapter)606 static int qlcnic_sriov_check_dev_ready(struct qlcnic_adapter *adapter)
607 {
608 u32 state;
609
610 do {
611 msleep(20);
612 if (++adapter->fw_fail_cnt > QLC_BC_CMD_MAX_RETRY_CNT)
613 return -EIO;
614 state = QLCRDX(adapter->ahw, QLC_83XX_IDC_DEV_STATE);
615 } while (state != QLC_83XX_IDC_DEV_READY);
616
617 return 0;
618 }
619
qlcnic_sriov_vf_init(struct qlcnic_adapter * adapter)620 int qlcnic_sriov_vf_init(struct qlcnic_adapter *adapter)
621 {
622 struct qlcnic_hardware_context *ahw = adapter->ahw;
623 int err;
624
625 set_bit(QLC_83XX_MODULE_LOADED, &ahw->idc.status);
626 ahw->idc.delay = QLC_83XX_IDC_FW_POLL_DELAY;
627 ahw->reset_context = 0;
628 adapter->fw_fail_cnt = 0;
629 ahw->msix_supported = 1;
630 adapter->need_fw_reset = 0;
631 adapter->flags |= QLCNIC_TX_INTR_SHARED;
632
633 err = qlcnic_sriov_check_dev_ready(adapter);
634 if (err)
635 return err;
636
637 err = qlcnic_sriov_setup_vf(adapter);
638 if (err)
639 return err;
640
641 if (qlcnic_read_mac_addr(adapter))
642 dev_warn(&adapter->pdev->dev, "failed to read mac addr\n");
643
644 INIT_DELAYED_WORK(&adapter->idc_aen_work, qlcnic_83xx_idc_aen_work);
645
646 clear_bit(__QLCNIC_RESETTING, &adapter->state);
647 return 0;
648 }
649
qlcnic_sriov_vf_set_ops(struct qlcnic_adapter * adapter)650 void qlcnic_sriov_vf_set_ops(struct qlcnic_adapter *adapter)
651 {
652 struct qlcnic_hardware_context *ahw = adapter->ahw;
653
654 ahw->op_mode = QLCNIC_SRIOV_VF_FUNC;
655 dev_info(&adapter->pdev->dev,
656 "HAL Version: %d Non Privileged SRIOV function\n",
657 ahw->fw_hal_version);
658 adapter->nic_ops = &qlcnic_sriov_vf_ops;
659 set_bit(__QLCNIC_SRIOV_ENABLE, &adapter->state);
660 return;
661 }
662
qlcnic_sriov_vf_register_map(struct qlcnic_hardware_context * ahw)663 void qlcnic_sriov_vf_register_map(struct qlcnic_hardware_context *ahw)
664 {
665 ahw->hw_ops = &qlcnic_sriov_vf_hw_ops;
666 ahw->reg_tbl = (u32 *)qlcnic_83xx_reg_tbl;
667 ahw->ext_reg_tbl = (u32 *)qlcnic_83xx_ext_reg_tbl;
668 }
669
qlcnic_sriov_get_bc_paysize(u32 real_pay_size,u8 curr_frag)670 static u32 qlcnic_sriov_get_bc_paysize(u32 real_pay_size, u8 curr_frag)
671 {
672 u32 pay_size;
673
674 pay_size = real_pay_size / ((curr_frag + 1) * QLC_BC_PAYLOAD_SZ);
675
676 if (pay_size)
677 pay_size = QLC_BC_PAYLOAD_SZ;
678 else
679 pay_size = real_pay_size % QLC_BC_PAYLOAD_SZ;
680
681 return pay_size;
682 }
683
qlcnic_sriov_func_to_index(struct qlcnic_adapter * adapter,u8 pci_func)684 int qlcnic_sriov_func_to_index(struct qlcnic_adapter *adapter, u8 pci_func)
685 {
686 struct qlcnic_vf_info *vf_info = adapter->ahw->sriov->vf_info;
687 u8 i;
688
689 if (qlcnic_sriov_vf_check(adapter))
690 return 0;
691
692 for (i = 0; i < adapter->ahw->sriov->num_vfs; i++) {
693 if (vf_info[i].pci_func == pci_func)
694 return i;
695 }
696
697 return -EINVAL;
698 }
699
qlcnic_sriov_alloc_bc_trans(struct qlcnic_bc_trans ** trans)700 static inline int qlcnic_sriov_alloc_bc_trans(struct qlcnic_bc_trans **trans)
701 {
702 *trans = kzalloc(sizeof(struct qlcnic_bc_trans), GFP_ATOMIC);
703 if (!*trans)
704 return -ENOMEM;
705
706 init_completion(&(*trans)->resp_cmpl);
707 return 0;
708 }
709
qlcnic_sriov_alloc_bc_msg(struct qlcnic_bc_hdr ** hdr,u32 size)710 static inline int qlcnic_sriov_alloc_bc_msg(struct qlcnic_bc_hdr **hdr,
711 u32 size)
712 {
713 *hdr = kcalloc(size, sizeof(struct qlcnic_bc_hdr), GFP_ATOMIC);
714 if (!*hdr)
715 return -ENOMEM;
716
717 return 0;
718 }
719
qlcnic_sriov_alloc_bc_mbx_args(struct qlcnic_cmd_args * mbx,u32 type)720 static int qlcnic_sriov_alloc_bc_mbx_args(struct qlcnic_cmd_args *mbx, u32 type)
721 {
722 const struct qlcnic_mailbox_metadata *mbx_tbl;
723 int i, size;
724
725 mbx_tbl = qlcnic_sriov_bc_mbx_tbl;
726 size = ARRAY_SIZE(qlcnic_sriov_bc_mbx_tbl);
727
728 for (i = 0; i < size; i++) {
729 if (type == mbx_tbl[i].cmd) {
730 mbx->op_type = QLC_BC_CMD;
731 mbx->req.num = mbx_tbl[i].in_args;
732 mbx->rsp.num = mbx_tbl[i].out_args;
733 mbx->req.arg = kcalloc(mbx->req.num, sizeof(u32),
734 GFP_ATOMIC);
735 if (!mbx->req.arg)
736 return -ENOMEM;
737 mbx->rsp.arg = kcalloc(mbx->rsp.num, sizeof(u32),
738 GFP_ATOMIC);
739 if (!mbx->rsp.arg) {
740 kfree(mbx->req.arg);
741 mbx->req.arg = NULL;
742 return -ENOMEM;
743 }
744 mbx->req.arg[0] = (type | (mbx->req.num << 16) |
745 (3 << 29));
746 mbx->rsp.arg[0] = (type & 0xffff) | mbx->rsp.num << 16;
747 return 0;
748 }
749 }
750 return -EINVAL;
751 }
752
qlcnic_sriov_prepare_bc_hdr(struct qlcnic_bc_trans * trans,struct qlcnic_cmd_args * cmd,u16 seq,u8 msg_type)753 static int qlcnic_sriov_prepare_bc_hdr(struct qlcnic_bc_trans *trans,
754 struct qlcnic_cmd_args *cmd,
755 u16 seq, u8 msg_type)
756 {
757 struct qlcnic_bc_hdr *hdr;
758 int i;
759 u32 num_regs, bc_pay_sz;
760 u16 remainder;
761 u8 cmd_op, num_frags, t_num_frags;
762
763 bc_pay_sz = QLC_BC_PAYLOAD_SZ;
764 if (msg_type == QLC_BC_COMMAND) {
765 trans->req_pay = (struct qlcnic_bc_payload *)cmd->req.arg;
766 trans->rsp_pay = (struct qlcnic_bc_payload *)cmd->rsp.arg;
767 num_regs = cmd->req.num;
768 trans->req_pay_size = (num_regs * 4);
769 num_regs = cmd->rsp.num;
770 trans->rsp_pay_size = (num_regs * 4);
771 cmd_op = cmd->req.arg[0] & 0xff;
772 remainder = (trans->req_pay_size) % (bc_pay_sz);
773 num_frags = (trans->req_pay_size) / (bc_pay_sz);
774 if (remainder)
775 num_frags++;
776 t_num_frags = num_frags;
777 if (qlcnic_sriov_alloc_bc_msg(&trans->req_hdr, num_frags))
778 return -ENOMEM;
779 remainder = (trans->rsp_pay_size) % (bc_pay_sz);
780 num_frags = (trans->rsp_pay_size) / (bc_pay_sz);
781 if (remainder)
782 num_frags++;
783 if (qlcnic_sriov_alloc_bc_msg(&trans->rsp_hdr, num_frags))
784 return -ENOMEM;
785 num_frags = t_num_frags;
786 hdr = trans->req_hdr;
787 } else {
788 cmd->req.arg = (u32 *)trans->req_pay;
789 cmd->rsp.arg = (u32 *)trans->rsp_pay;
790 cmd_op = cmd->req.arg[0] & 0xff;
791 cmd->cmd_op = cmd_op;
792 remainder = (trans->rsp_pay_size) % (bc_pay_sz);
793 num_frags = (trans->rsp_pay_size) / (bc_pay_sz);
794 if (remainder)
795 num_frags++;
796 cmd->req.num = trans->req_pay_size / 4;
797 cmd->rsp.num = trans->rsp_pay_size / 4;
798 hdr = trans->rsp_hdr;
799 cmd->op_type = trans->req_hdr->op_type;
800 }
801
802 trans->trans_id = seq;
803 trans->cmd_id = cmd_op;
804 for (i = 0; i < num_frags; i++) {
805 hdr[i].version = 2;
806 hdr[i].msg_type = msg_type;
807 hdr[i].op_type = cmd->op_type;
808 hdr[i].num_cmds = 1;
809 hdr[i].num_frags = num_frags;
810 hdr[i].frag_num = i + 1;
811 hdr[i].cmd_op = cmd_op;
812 hdr[i].seq_id = seq;
813 }
814 return 0;
815 }
816
qlcnic_sriov_cleanup_transaction(struct qlcnic_bc_trans * trans)817 static void qlcnic_sriov_cleanup_transaction(struct qlcnic_bc_trans *trans)
818 {
819 if (!trans)
820 return;
821 kfree(trans->req_hdr);
822 kfree(trans->rsp_hdr);
823 kfree(trans);
824 }
825
qlcnic_sriov_clear_trans(struct qlcnic_vf_info * vf,struct qlcnic_bc_trans * trans,u8 type)826 static int qlcnic_sriov_clear_trans(struct qlcnic_vf_info *vf,
827 struct qlcnic_bc_trans *trans, u8 type)
828 {
829 struct qlcnic_trans_list *t_list;
830 unsigned long flags;
831 int ret = 0;
832
833 if (type == QLC_BC_RESPONSE) {
834 t_list = &vf->rcv_act;
835 spin_lock_irqsave(&t_list->lock, flags);
836 t_list->count--;
837 list_del(&trans->list);
838 if (t_list->count > 0)
839 ret = 1;
840 spin_unlock_irqrestore(&t_list->lock, flags);
841 }
842 if (type == QLC_BC_COMMAND) {
843 while (test_and_set_bit(QLC_BC_VF_SEND, &vf->state))
844 msleep(100);
845 vf->send_cmd = NULL;
846 clear_bit(QLC_BC_VF_SEND, &vf->state);
847 }
848 return ret;
849 }
850
qlcnic_sriov_schedule_bc_cmd(struct qlcnic_sriov * sriov,struct qlcnic_vf_info * vf,work_func_t func)851 static void qlcnic_sriov_schedule_bc_cmd(struct qlcnic_sriov *sriov,
852 struct qlcnic_vf_info *vf,
853 work_func_t func)
854 {
855 if (test_bit(QLC_BC_VF_FLR, &vf->state) ||
856 vf->adapter->need_fw_reset)
857 return;
858
859 queue_work(sriov->bc.bc_trans_wq, &vf->trans_work);
860 }
861
qlcnic_sriov_wait_for_resp(struct qlcnic_bc_trans * trans)862 static inline void qlcnic_sriov_wait_for_resp(struct qlcnic_bc_trans *trans)
863 {
864 struct completion *cmpl = &trans->resp_cmpl;
865
866 if (wait_for_completion_timeout(cmpl, QLC_MBOX_RESP_TIMEOUT))
867 trans->trans_state = QLC_END;
868 else
869 trans->trans_state = QLC_ABORT;
870
871 return;
872 }
873
qlcnic_sriov_handle_multi_frags(struct qlcnic_bc_trans * trans,u8 type)874 static void qlcnic_sriov_handle_multi_frags(struct qlcnic_bc_trans *trans,
875 u8 type)
876 {
877 if (type == QLC_BC_RESPONSE) {
878 trans->curr_rsp_frag++;
879 if (trans->curr_rsp_frag < trans->rsp_hdr->num_frags)
880 trans->trans_state = QLC_INIT;
881 else
882 trans->trans_state = QLC_END;
883 } else {
884 trans->curr_req_frag++;
885 if (trans->curr_req_frag < trans->req_hdr->num_frags)
886 trans->trans_state = QLC_INIT;
887 else
888 trans->trans_state = QLC_WAIT_FOR_RESP;
889 }
890 }
891
qlcnic_sriov_wait_for_channel_free(struct qlcnic_bc_trans * trans,u8 type)892 static void qlcnic_sriov_wait_for_channel_free(struct qlcnic_bc_trans *trans,
893 u8 type)
894 {
895 struct qlcnic_vf_info *vf = trans->vf;
896 struct completion *cmpl = &vf->ch_free_cmpl;
897
898 if (!wait_for_completion_timeout(cmpl, QLC_MBOX_CH_FREE_TIMEOUT)) {
899 trans->trans_state = QLC_ABORT;
900 return;
901 }
902
903 clear_bit(QLC_BC_VF_CHANNEL, &vf->state);
904 qlcnic_sriov_handle_multi_frags(trans, type);
905 }
906
qlcnic_sriov_pull_bc_msg(struct qlcnic_adapter * adapter,u32 * hdr,u32 * pay,u32 size)907 static void qlcnic_sriov_pull_bc_msg(struct qlcnic_adapter *adapter,
908 u32 *hdr, u32 *pay, u32 size)
909 {
910 struct qlcnic_hardware_context *ahw = adapter->ahw;
911 u8 i, max = 2, hdr_size, j;
912
913 hdr_size = (sizeof(struct qlcnic_bc_hdr) / sizeof(u32));
914 max = (size / sizeof(u32)) + hdr_size;
915
916 for (i = 2, j = 0; j < hdr_size; i++, j++)
917 *(hdr++) = readl(QLCNIC_MBX_FW(ahw, i));
918 for (; j < max; i++, j++)
919 *(pay++) = readl(QLCNIC_MBX_FW(ahw, i));
920 }
921
__qlcnic_sriov_issue_bc_post(struct qlcnic_vf_info * vf)922 static int __qlcnic_sriov_issue_bc_post(struct qlcnic_vf_info *vf)
923 {
924 int ret = -EBUSY;
925 u32 timeout = 10000;
926
927 do {
928 if (!test_and_set_bit(QLC_BC_VF_CHANNEL, &vf->state)) {
929 ret = 0;
930 break;
931 }
932 mdelay(1);
933 } while (--timeout);
934
935 return ret;
936 }
937
qlcnic_sriov_issue_bc_post(struct qlcnic_bc_trans * trans,u8 type)938 static int qlcnic_sriov_issue_bc_post(struct qlcnic_bc_trans *trans, u8 type)
939 {
940 struct qlcnic_vf_info *vf = trans->vf;
941 u32 pay_size;
942 u32 *hdr, *pay;
943 int ret;
944 u8 pci_func = trans->func_id;
945
946 if (__qlcnic_sriov_issue_bc_post(vf))
947 return -EBUSY;
948
949 if (type == QLC_BC_COMMAND) {
950 hdr = (u32 *)(trans->req_hdr + trans->curr_req_frag);
951 pay = (u32 *)(trans->req_pay + trans->curr_req_frag);
952 pay_size = qlcnic_sriov_get_bc_paysize(trans->req_pay_size,
953 trans->curr_req_frag);
954 pay_size = (pay_size / sizeof(u32));
955 } else {
956 hdr = (u32 *)(trans->rsp_hdr + trans->curr_rsp_frag);
957 pay = (u32 *)(trans->rsp_pay + trans->curr_rsp_frag);
958 pay_size = qlcnic_sriov_get_bc_paysize(trans->rsp_pay_size,
959 trans->curr_rsp_frag);
960 pay_size = (pay_size / sizeof(u32));
961 }
962
963 ret = qlcnic_sriov_post_bc_msg(vf->adapter, hdr, pay,
964 pci_func, pay_size);
965 return ret;
966 }
967
__qlcnic_sriov_send_bc_msg(struct qlcnic_bc_trans * trans,struct qlcnic_vf_info * vf,u8 type)968 static int __qlcnic_sriov_send_bc_msg(struct qlcnic_bc_trans *trans,
969 struct qlcnic_vf_info *vf, u8 type)
970 {
971 bool flag = true;
972 int err = -EIO;
973
974 while (flag) {
975 if (test_bit(QLC_BC_VF_FLR, &vf->state) ||
976 vf->adapter->need_fw_reset)
977 trans->trans_state = QLC_ABORT;
978
979 switch (trans->trans_state) {
980 case QLC_INIT:
981 trans->trans_state = QLC_WAIT_FOR_CHANNEL_FREE;
982 if (qlcnic_sriov_issue_bc_post(trans, type))
983 trans->trans_state = QLC_ABORT;
984 break;
985 case QLC_WAIT_FOR_CHANNEL_FREE:
986 qlcnic_sriov_wait_for_channel_free(trans, type);
987 break;
988 case QLC_WAIT_FOR_RESP:
989 qlcnic_sriov_wait_for_resp(trans);
990 break;
991 case QLC_END:
992 err = 0;
993 flag = false;
994 break;
995 case QLC_ABORT:
996 err = -EIO;
997 flag = false;
998 clear_bit(QLC_BC_VF_CHANNEL, &vf->state);
999 break;
1000 default:
1001 err = -EIO;
1002 flag = false;
1003 }
1004 }
1005 return err;
1006 }
1007
qlcnic_sriov_send_bc_cmd(struct qlcnic_adapter * adapter,struct qlcnic_bc_trans * trans,int pci_func)1008 static int qlcnic_sriov_send_bc_cmd(struct qlcnic_adapter *adapter,
1009 struct qlcnic_bc_trans *trans, int pci_func)
1010 {
1011 struct qlcnic_vf_info *vf;
1012 int err, index = qlcnic_sriov_func_to_index(adapter, pci_func);
1013
1014 if (index < 0)
1015 return -EIO;
1016
1017 vf = &adapter->ahw->sriov->vf_info[index];
1018 trans->vf = vf;
1019 trans->func_id = pci_func;
1020
1021 if (!test_bit(QLC_BC_VF_STATE, &vf->state)) {
1022 if (qlcnic_sriov_pf_check(adapter))
1023 return -EIO;
1024 if (qlcnic_sriov_vf_check(adapter) &&
1025 trans->cmd_id != QLCNIC_BC_CMD_CHANNEL_INIT)
1026 return -EIO;
1027 }
1028
1029 mutex_lock(&vf->send_cmd_lock);
1030 vf->send_cmd = trans;
1031 err = __qlcnic_sriov_send_bc_msg(trans, vf, QLC_BC_COMMAND);
1032 qlcnic_sriov_clear_trans(vf, trans, QLC_BC_COMMAND);
1033 mutex_unlock(&vf->send_cmd_lock);
1034 return err;
1035 }
1036
__qlcnic_sriov_process_bc_cmd(struct qlcnic_adapter * adapter,struct qlcnic_bc_trans * trans,struct qlcnic_cmd_args * cmd)1037 static void __qlcnic_sriov_process_bc_cmd(struct qlcnic_adapter *adapter,
1038 struct qlcnic_bc_trans *trans,
1039 struct qlcnic_cmd_args *cmd)
1040 {
1041 #ifdef CONFIG_QLCNIC_SRIOV
1042 if (qlcnic_sriov_pf_check(adapter)) {
1043 qlcnic_sriov_pf_process_bc_cmd(adapter, trans, cmd);
1044 return;
1045 }
1046 #endif
1047 cmd->rsp.arg[0] |= (0x9 << 25);
1048 return;
1049 }
1050
qlcnic_sriov_process_bc_cmd(struct work_struct * work)1051 static void qlcnic_sriov_process_bc_cmd(struct work_struct *work)
1052 {
1053 struct qlcnic_vf_info *vf = container_of(work, struct qlcnic_vf_info,
1054 trans_work);
1055 struct qlcnic_bc_trans *trans = NULL;
1056 struct qlcnic_adapter *adapter = vf->adapter;
1057 struct qlcnic_cmd_args cmd;
1058 u8 req;
1059
1060 if (adapter->need_fw_reset)
1061 return;
1062
1063 if (test_bit(QLC_BC_VF_FLR, &vf->state))
1064 return;
1065
1066 memset(&cmd, 0, sizeof(struct qlcnic_cmd_args));
1067 trans = list_first_entry(&vf->rcv_act.wait_list,
1068 struct qlcnic_bc_trans, list);
1069 adapter = vf->adapter;
1070
1071 if (qlcnic_sriov_prepare_bc_hdr(trans, &cmd, trans->req_hdr->seq_id,
1072 QLC_BC_RESPONSE))
1073 goto cleanup_trans;
1074
1075 __qlcnic_sriov_process_bc_cmd(adapter, trans, &cmd);
1076 trans->trans_state = QLC_INIT;
1077 __qlcnic_sriov_send_bc_msg(trans, vf, QLC_BC_RESPONSE);
1078
1079 cleanup_trans:
1080 qlcnic_free_mbx_args(&cmd);
1081 req = qlcnic_sriov_clear_trans(vf, trans, QLC_BC_RESPONSE);
1082 qlcnic_sriov_cleanup_transaction(trans);
1083 if (req)
1084 qlcnic_sriov_schedule_bc_cmd(adapter->ahw->sriov, vf,
1085 qlcnic_sriov_process_bc_cmd);
1086 }
1087
qlcnic_sriov_handle_bc_resp(struct qlcnic_bc_hdr * hdr,struct qlcnic_vf_info * vf)1088 static void qlcnic_sriov_handle_bc_resp(struct qlcnic_bc_hdr *hdr,
1089 struct qlcnic_vf_info *vf)
1090 {
1091 struct qlcnic_bc_trans *trans;
1092 u32 pay_size;
1093
1094 if (test_and_set_bit(QLC_BC_VF_SEND, &vf->state))
1095 return;
1096
1097 trans = vf->send_cmd;
1098
1099 if (trans == NULL)
1100 goto clear_send;
1101
1102 if (trans->trans_id != hdr->seq_id)
1103 goto clear_send;
1104
1105 pay_size = qlcnic_sriov_get_bc_paysize(trans->rsp_pay_size,
1106 trans->curr_rsp_frag);
1107 qlcnic_sriov_pull_bc_msg(vf->adapter,
1108 (u32 *)(trans->rsp_hdr + trans->curr_rsp_frag),
1109 (u32 *)(trans->rsp_pay + trans->curr_rsp_frag),
1110 pay_size);
1111 if (++trans->curr_rsp_frag < trans->rsp_hdr->num_frags)
1112 goto clear_send;
1113
1114 complete(&trans->resp_cmpl);
1115
1116 clear_send:
1117 clear_bit(QLC_BC_VF_SEND, &vf->state);
1118 }
1119
__qlcnic_sriov_add_act_list(struct qlcnic_sriov * sriov,struct qlcnic_vf_info * vf,struct qlcnic_bc_trans * trans)1120 int __qlcnic_sriov_add_act_list(struct qlcnic_sriov *sriov,
1121 struct qlcnic_vf_info *vf,
1122 struct qlcnic_bc_trans *trans)
1123 {
1124 struct qlcnic_trans_list *t_list = &vf->rcv_act;
1125
1126 t_list->count++;
1127 list_add_tail(&trans->list, &t_list->wait_list);
1128 if (t_list->count == 1)
1129 qlcnic_sriov_schedule_bc_cmd(sriov, vf,
1130 qlcnic_sriov_process_bc_cmd);
1131 return 0;
1132 }
1133
qlcnic_sriov_add_act_list(struct qlcnic_sriov * sriov,struct qlcnic_vf_info * vf,struct qlcnic_bc_trans * trans)1134 static int qlcnic_sriov_add_act_list(struct qlcnic_sriov *sriov,
1135 struct qlcnic_vf_info *vf,
1136 struct qlcnic_bc_trans *trans)
1137 {
1138 struct qlcnic_trans_list *t_list = &vf->rcv_act;
1139
1140 spin_lock(&t_list->lock);
1141
1142 __qlcnic_sriov_add_act_list(sriov, vf, trans);
1143
1144 spin_unlock(&t_list->lock);
1145 return 0;
1146 }
1147
qlcnic_sriov_handle_pending_trans(struct qlcnic_sriov * sriov,struct qlcnic_vf_info * vf,struct qlcnic_bc_hdr * hdr)1148 static void qlcnic_sriov_handle_pending_trans(struct qlcnic_sriov *sriov,
1149 struct qlcnic_vf_info *vf,
1150 struct qlcnic_bc_hdr *hdr)
1151 {
1152 struct qlcnic_bc_trans *trans = NULL;
1153 struct list_head *node;
1154 u32 pay_size, curr_frag;
1155 u8 found = 0, active = 0;
1156
1157 spin_lock(&vf->rcv_pend.lock);
1158 if (vf->rcv_pend.count > 0) {
1159 list_for_each(node, &vf->rcv_pend.wait_list) {
1160 trans = list_entry(node, struct qlcnic_bc_trans, list);
1161 if (trans->trans_id == hdr->seq_id) {
1162 found = 1;
1163 break;
1164 }
1165 }
1166 }
1167
1168 if (found) {
1169 curr_frag = trans->curr_req_frag;
1170 pay_size = qlcnic_sriov_get_bc_paysize(trans->req_pay_size,
1171 curr_frag);
1172 qlcnic_sriov_pull_bc_msg(vf->adapter,
1173 (u32 *)(trans->req_hdr + curr_frag),
1174 (u32 *)(trans->req_pay + curr_frag),
1175 pay_size);
1176 trans->curr_req_frag++;
1177 if (trans->curr_req_frag >= hdr->num_frags) {
1178 vf->rcv_pend.count--;
1179 list_del(&trans->list);
1180 active = 1;
1181 }
1182 }
1183 spin_unlock(&vf->rcv_pend.lock);
1184
1185 if (active)
1186 if (qlcnic_sriov_add_act_list(sriov, vf, trans))
1187 qlcnic_sriov_cleanup_transaction(trans);
1188
1189 return;
1190 }
1191
qlcnic_sriov_handle_bc_cmd(struct qlcnic_sriov * sriov,struct qlcnic_bc_hdr * hdr,struct qlcnic_vf_info * vf)1192 static void qlcnic_sriov_handle_bc_cmd(struct qlcnic_sriov *sriov,
1193 struct qlcnic_bc_hdr *hdr,
1194 struct qlcnic_vf_info *vf)
1195 {
1196 struct qlcnic_bc_trans *trans;
1197 struct qlcnic_adapter *adapter = vf->adapter;
1198 struct qlcnic_cmd_args cmd;
1199 u32 pay_size;
1200 int err;
1201 u8 cmd_op;
1202
1203 if (adapter->need_fw_reset)
1204 return;
1205
1206 if (!test_bit(QLC_BC_VF_STATE, &vf->state) &&
1207 hdr->op_type != QLC_BC_CMD &&
1208 hdr->cmd_op != QLCNIC_BC_CMD_CHANNEL_INIT)
1209 return;
1210
1211 if (hdr->frag_num > 1) {
1212 qlcnic_sriov_handle_pending_trans(sriov, vf, hdr);
1213 return;
1214 }
1215
1216 memset(&cmd, 0, sizeof(struct qlcnic_cmd_args));
1217 cmd_op = hdr->cmd_op;
1218 if (qlcnic_sriov_alloc_bc_trans(&trans))
1219 return;
1220
1221 if (hdr->op_type == QLC_BC_CMD)
1222 err = qlcnic_sriov_alloc_bc_mbx_args(&cmd, cmd_op);
1223 else
1224 err = qlcnic_alloc_mbx_args(&cmd, adapter, cmd_op);
1225
1226 if (err) {
1227 qlcnic_sriov_cleanup_transaction(trans);
1228 return;
1229 }
1230
1231 cmd.op_type = hdr->op_type;
1232 if (qlcnic_sriov_prepare_bc_hdr(trans, &cmd, hdr->seq_id,
1233 QLC_BC_COMMAND)) {
1234 qlcnic_free_mbx_args(&cmd);
1235 qlcnic_sriov_cleanup_transaction(trans);
1236 return;
1237 }
1238
1239 pay_size = qlcnic_sriov_get_bc_paysize(trans->req_pay_size,
1240 trans->curr_req_frag);
1241 qlcnic_sriov_pull_bc_msg(vf->adapter,
1242 (u32 *)(trans->req_hdr + trans->curr_req_frag),
1243 (u32 *)(trans->req_pay + trans->curr_req_frag),
1244 pay_size);
1245 trans->func_id = vf->pci_func;
1246 trans->vf = vf;
1247 trans->trans_id = hdr->seq_id;
1248 trans->curr_req_frag++;
1249
1250 if (qlcnic_sriov_soft_flr_check(adapter, trans, vf))
1251 return;
1252
1253 if (trans->curr_req_frag == trans->req_hdr->num_frags) {
1254 if (qlcnic_sriov_add_act_list(sriov, vf, trans)) {
1255 qlcnic_free_mbx_args(&cmd);
1256 qlcnic_sriov_cleanup_transaction(trans);
1257 }
1258 } else {
1259 spin_lock(&vf->rcv_pend.lock);
1260 list_add_tail(&trans->list, &vf->rcv_pend.wait_list);
1261 vf->rcv_pend.count++;
1262 spin_unlock(&vf->rcv_pend.lock);
1263 }
1264 }
1265
qlcnic_sriov_handle_msg_event(struct qlcnic_sriov * sriov,struct qlcnic_vf_info * vf)1266 static void qlcnic_sriov_handle_msg_event(struct qlcnic_sriov *sriov,
1267 struct qlcnic_vf_info *vf)
1268 {
1269 struct qlcnic_bc_hdr hdr;
1270 u32 *ptr = (u32 *)&hdr;
1271 u8 msg_type, i;
1272
1273 for (i = 2; i < 6; i++)
1274 ptr[i - 2] = readl(QLCNIC_MBX_FW(vf->adapter->ahw, i));
1275 msg_type = hdr.msg_type;
1276
1277 switch (msg_type) {
1278 case QLC_BC_COMMAND:
1279 qlcnic_sriov_handle_bc_cmd(sriov, &hdr, vf);
1280 break;
1281 case QLC_BC_RESPONSE:
1282 qlcnic_sriov_handle_bc_resp(&hdr, vf);
1283 break;
1284 }
1285 }
1286
qlcnic_sriov_handle_flr_event(struct qlcnic_sriov * sriov,struct qlcnic_vf_info * vf)1287 static void qlcnic_sriov_handle_flr_event(struct qlcnic_sriov *sriov,
1288 struct qlcnic_vf_info *vf)
1289 {
1290 struct qlcnic_adapter *adapter = vf->adapter;
1291
1292 if (qlcnic_sriov_pf_check(adapter))
1293 qlcnic_sriov_pf_handle_flr(sriov, vf);
1294 else
1295 dev_err(&adapter->pdev->dev,
1296 "Invalid event to VF. VF should not get FLR event\n");
1297 }
1298
qlcnic_sriov_handle_bc_event(struct qlcnic_adapter * adapter,u32 event)1299 void qlcnic_sriov_handle_bc_event(struct qlcnic_adapter *adapter, u32 event)
1300 {
1301 struct qlcnic_vf_info *vf;
1302 struct qlcnic_sriov *sriov;
1303 int index;
1304 u8 pci_func;
1305
1306 sriov = adapter->ahw->sriov;
1307 pci_func = qlcnic_sriov_target_func_id(event);
1308 index = qlcnic_sriov_func_to_index(adapter, pci_func);
1309
1310 if (index < 0)
1311 return;
1312
1313 vf = &sriov->vf_info[index];
1314 vf->pci_func = pci_func;
1315
1316 if (qlcnic_sriov_channel_free_check(event))
1317 complete(&vf->ch_free_cmpl);
1318
1319 if (qlcnic_sriov_flr_check(event)) {
1320 qlcnic_sriov_handle_flr_event(sriov, vf);
1321 return;
1322 }
1323
1324 if (qlcnic_sriov_bc_msg_check(event))
1325 qlcnic_sriov_handle_msg_event(sriov, vf);
1326 }
1327
qlcnic_sriov_cfg_bc_intr(struct qlcnic_adapter * adapter,u8 enable)1328 int qlcnic_sriov_cfg_bc_intr(struct qlcnic_adapter *adapter, u8 enable)
1329 {
1330 struct qlcnic_cmd_args cmd;
1331 int err;
1332
1333 if (!test_bit(__QLCNIC_SRIOV_ENABLE, &adapter->state))
1334 return 0;
1335
1336 if (qlcnic_alloc_mbx_args(&cmd, adapter, QLCNIC_CMD_BC_EVENT_SETUP))
1337 return -ENOMEM;
1338
1339 if (enable)
1340 cmd.req.arg[1] = (1 << 4) | (1 << 5) | (1 << 6) | (1 << 7);
1341
1342 err = qlcnic_83xx_issue_cmd(adapter, &cmd);
1343
1344 if (err != QLCNIC_RCODE_SUCCESS) {
1345 dev_err(&adapter->pdev->dev,
1346 "Failed to %s bc events, err=%d\n",
1347 (enable ? "enable" : "disable"), err);
1348 }
1349
1350 qlcnic_free_mbx_args(&cmd);
1351 return err;
1352 }
1353
qlcnic_sriov_retry_bc_cmd(struct qlcnic_adapter * adapter,struct qlcnic_bc_trans * trans)1354 static int qlcnic_sriov_retry_bc_cmd(struct qlcnic_adapter *adapter,
1355 struct qlcnic_bc_trans *trans)
1356 {
1357 u8 max = QLC_BC_CMD_MAX_RETRY_CNT;
1358 u32 state;
1359
1360 state = QLCRDX(adapter->ahw, QLC_83XX_IDC_DEV_STATE);
1361 if (state == QLC_83XX_IDC_DEV_READY) {
1362 msleep(20);
1363 clear_bit(QLC_BC_VF_CHANNEL, &trans->vf->state);
1364 trans->trans_state = QLC_INIT;
1365 if (++adapter->fw_fail_cnt > max)
1366 return -EIO;
1367 else
1368 return 0;
1369 }
1370
1371 return -EIO;
1372 }
1373
__qlcnic_sriov_issue_cmd(struct qlcnic_adapter * adapter,struct qlcnic_cmd_args * cmd)1374 static int __qlcnic_sriov_issue_cmd(struct qlcnic_adapter *adapter,
1375 struct qlcnic_cmd_args *cmd)
1376 {
1377 struct qlcnic_hardware_context *ahw = adapter->ahw;
1378 struct qlcnic_mailbox *mbx = ahw->mailbox;
1379 struct device *dev = &adapter->pdev->dev;
1380 struct qlcnic_bc_trans *trans;
1381 int err;
1382 u32 rsp_data, opcode, mbx_err_code, rsp;
1383 u16 seq = ++adapter->ahw->sriov->bc.trans_counter;
1384 u8 func = ahw->pci_func;
1385
1386 rsp = qlcnic_sriov_alloc_bc_trans(&trans);
1387 if (rsp)
1388 goto free_cmd;
1389
1390 rsp = qlcnic_sriov_prepare_bc_hdr(trans, cmd, seq, QLC_BC_COMMAND);
1391 if (rsp)
1392 goto cleanup_transaction;
1393
1394 retry:
1395 if (!test_bit(QLC_83XX_MBX_READY, &mbx->status)) {
1396 rsp = -EIO;
1397 QLCDB(adapter, DRV, "MBX not Ready!(cmd 0x%x) for VF 0x%x\n",
1398 QLCNIC_MBX_RSP(cmd->req.arg[0]), func);
1399 goto err_out;
1400 }
1401
1402 err = qlcnic_sriov_send_bc_cmd(adapter, trans, func);
1403 if (err) {
1404 dev_err(dev, "MBX command 0x%x timed out for VF %d\n",
1405 (cmd->req.arg[0] & 0xffff), func);
1406 rsp = QLCNIC_RCODE_TIMEOUT;
1407
1408 /* After adapter reset PF driver may take some time to
1409 * respond to VF's request. Retry request till maximum retries.
1410 */
1411 if ((trans->req_hdr->cmd_op == QLCNIC_BC_CMD_CHANNEL_INIT) &&
1412 !qlcnic_sriov_retry_bc_cmd(adapter, trans))
1413 goto retry;
1414
1415 goto err_out;
1416 }
1417
1418 rsp_data = cmd->rsp.arg[0];
1419 mbx_err_code = QLCNIC_MBX_STATUS(rsp_data);
1420 opcode = QLCNIC_MBX_RSP(cmd->req.arg[0]);
1421
1422 if ((mbx_err_code == QLCNIC_MBX_RSP_OK) ||
1423 (mbx_err_code == QLCNIC_MBX_PORT_RSP_OK)) {
1424 rsp = QLCNIC_RCODE_SUCCESS;
1425 } else {
1426 if (cmd->type == QLC_83XX_MBX_CMD_NO_WAIT) {
1427 rsp = QLCNIC_RCODE_SUCCESS;
1428 } else {
1429 rsp = mbx_err_code;
1430 if (!rsp)
1431 rsp = 1;
1432
1433 dev_err(dev,
1434 "MBX command 0x%x failed with err:0x%x for VF %d\n",
1435 opcode, mbx_err_code, func);
1436 }
1437 }
1438
1439 err_out:
1440 if (rsp == QLCNIC_RCODE_TIMEOUT) {
1441 ahw->reset_context = 1;
1442 adapter->need_fw_reset = 1;
1443 clear_bit(QLC_83XX_MBX_READY, &mbx->status);
1444 }
1445
1446 cleanup_transaction:
1447 qlcnic_sriov_cleanup_transaction(trans);
1448
1449 free_cmd:
1450 if (cmd->type == QLC_83XX_MBX_CMD_NO_WAIT) {
1451 qlcnic_free_mbx_args(cmd);
1452 kfree(cmd);
1453 }
1454
1455 return rsp;
1456 }
1457
1458
qlcnic_sriov_issue_cmd(struct qlcnic_adapter * adapter,struct qlcnic_cmd_args * cmd)1459 static int qlcnic_sriov_issue_cmd(struct qlcnic_adapter *adapter,
1460 struct qlcnic_cmd_args *cmd)
1461 {
1462 if (cmd->type == QLC_83XX_MBX_CMD_NO_WAIT)
1463 return qlcnic_sriov_async_issue_cmd(adapter, cmd);
1464 else
1465 return __qlcnic_sriov_issue_cmd(adapter, cmd);
1466 }
1467
qlcnic_sriov_channel_cfg_cmd(struct qlcnic_adapter * adapter,u8 cmd_op)1468 static int qlcnic_sriov_channel_cfg_cmd(struct qlcnic_adapter *adapter, u8 cmd_op)
1469 {
1470 struct qlcnic_cmd_args cmd;
1471 struct qlcnic_vf_info *vf = &adapter->ahw->sriov->vf_info[0];
1472 int ret;
1473
1474 memset(&cmd, 0, sizeof(cmd));
1475 if (qlcnic_sriov_alloc_bc_mbx_args(&cmd, cmd_op))
1476 return -ENOMEM;
1477
1478 ret = qlcnic_issue_cmd(adapter, &cmd);
1479 if (ret) {
1480 dev_err(&adapter->pdev->dev,
1481 "Failed bc channel %s %d\n", cmd_op ? "term" : "init",
1482 ret);
1483 goto out;
1484 }
1485
1486 cmd_op = (cmd.rsp.arg[0] & 0xff);
1487 if (cmd.rsp.arg[0] >> 25 == 2)
1488 return 2;
1489 if (cmd_op == QLCNIC_BC_CMD_CHANNEL_INIT)
1490 set_bit(QLC_BC_VF_STATE, &vf->state);
1491 else
1492 clear_bit(QLC_BC_VF_STATE, &vf->state);
1493
1494 out:
1495 qlcnic_free_mbx_args(&cmd);
1496 return ret;
1497 }
1498
qlcnic_vf_add_mc_list(struct net_device * netdev,const u8 * mac,enum qlcnic_mac_type mac_type)1499 static void qlcnic_vf_add_mc_list(struct net_device *netdev, const u8 *mac,
1500 enum qlcnic_mac_type mac_type)
1501 {
1502 struct qlcnic_adapter *adapter = netdev_priv(netdev);
1503 struct qlcnic_sriov *sriov = adapter->ahw->sriov;
1504 struct qlcnic_vf_info *vf;
1505 u16 vlan_id;
1506 int i;
1507
1508 vf = &adapter->ahw->sriov->vf_info[0];
1509
1510 if (!qlcnic_sriov_check_any_vlan(vf)) {
1511 qlcnic_nic_add_mac(adapter, mac, 0, mac_type);
1512 } else {
1513 spin_lock(&vf->vlan_list_lock);
1514 for (i = 0; i < sriov->num_allowed_vlans; i++) {
1515 vlan_id = vf->sriov_vlans[i];
1516 if (vlan_id)
1517 qlcnic_nic_add_mac(adapter, mac, vlan_id,
1518 mac_type);
1519 }
1520 spin_unlock(&vf->vlan_list_lock);
1521 if (qlcnic_84xx_check(adapter))
1522 qlcnic_nic_add_mac(adapter, mac, 0, mac_type);
1523 }
1524 }
1525
qlcnic_sriov_cleanup_async_list(struct qlcnic_back_channel * bc)1526 void qlcnic_sriov_cleanup_async_list(struct qlcnic_back_channel *bc)
1527 {
1528 struct list_head *head = &bc->async_cmd_list;
1529 struct qlcnic_async_cmd *entry;
1530
1531 flush_workqueue(bc->bc_async_wq);
1532 cancel_work_sync(&bc->vf_async_work);
1533
1534 spin_lock(&bc->queue_lock);
1535 while (!list_empty(head)) {
1536 entry = list_entry(head->next, struct qlcnic_async_cmd,
1537 list);
1538 list_del(&entry->list);
1539 kfree(entry->cmd);
1540 kfree(entry);
1541 }
1542 spin_unlock(&bc->queue_lock);
1543 }
1544
qlcnic_sriov_vf_set_multi(struct net_device * netdev)1545 void qlcnic_sriov_vf_set_multi(struct net_device *netdev)
1546 {
1547 struct qlcnic_adapter *adapter = netdev_priv(netdev);
1548 struct qlcnic_hardware_context *ahw = adapter->ahw;
1549 static const u8 bcast_addr[ETH_ALEN] = {
1550 0xff, 0xff, 0xff, 0xff, 0xff, 0xff
1551 };
1552 struct netdev_hw_addr *ha;
1553 u32 mode = VPORT_MISS_MODE_DROP;
1554
1555 if (!test_bit(__QLCNIC_FW_ATTACHED, &adapter->state))
1556 return;
1557
1558 if (netdev->flags & IFF_PROMISC) {
1559 if (!(adapter->flags & QLCNIC_PROMISC_DISABLED))
1560 mode = VPORT_MISS_MODE_ACCEPT_ALL;
1561 } else if ((netdev->flags & IFF_ALLMULTI) ||
1562 (netdev_mc_count(netdev) > ahw->max_mc_count)) {
1563 mode = VPORT_MISS_MODE_ACCEPT_MULTI;
1564 } else {
1565 qlcnic_vf_add_mc_list(netdev, bcast_addr, QLCNIC_BROADCAST_MAC);
1566 if (!netdev_mc_empty(netdev)) {
1567 qlcnic_flush_mcast_mac(adapter);
1568 netdev_for_each_mc_addr(ha, netdev)
1569 qlcnic_vf_add_mc_list(netdev, ha->addr,
1570 QLCNIC_MULTICAST_MAC);
1571 }
1572 }
1573
1574 /* configure unicast MAC address, if there is not sufficient space
1575 * to store all the unicast addresses then enable promiscuous mode
1576 */
1577 if (netdev_uc_count(netdev) > ahw->max_uc_count) {
1578 mode = VPORT_MISS_MODE_ACCEPT_ALL;
1579 } else if (!netdev_uc_empty(netdev)) {
1580 netdev_for_each_uc_addr(ha, netdev)
1581 qlcnic_vf_add_mc_list(netdev, ha->addr,
1582 QLCNIC_UNICAST_MAC);
1583 }
1584
1585 if (adapter->pdev->is_virtfn) {
1586 if (mode == VPORT_MISS_MODE_ACCEPT_ALL &&
1587 !adapter->fdb_mac_learn) {
1588 qlcnic_alloc_lb_filters_mem(adapter);
1589 adapter->drv_mac_learn = true;
1590 adapter->rx_mac_learn = true;
1591 } else {
1592 adapter->drv_mac_learn = false;
1593 adapter->rx_mac_learn = false;
1594 }
1595 }
1596
1597 qlcnic_nic_set_promisc(adapter, mode);
1598 }
1599
qlcnic_sriov_handle_async_issue_cmd(struct work_struct * work)1600 static void qlcnic_sriov_handle_async_issue_cmd(struct work_struct *work)
1601 {
1602 struct qlcnic_async_cmd *entry, *tmp;
1603 struct qlcnic_back_channel *bc;
1604 struct qlcnic_cmd_args *cmd;
1605 struct list_head *head;
1606 LIST_HEAD(del_list);
1607
1608 bc = container_of(work, struct qlcnic_back_channel, vf_async_work);
1609 head = &bc->async_cmd_list;
1610
1611 spin_lock(&bc->queue_lock);
1612 list_splice_init(head, &del_list);
1613 spin_unlock(&bc->queue_lock);
1614
1615 list_for_each_entry_safe(entry, tmp, &del_list, list) {
1616 list_del(&entry->list);
1617 cmd = entry->cmd;
1618 __qlcnic_sriov_issue_cmd(bc->adapter, cmd);
1619 kfree(entry);
1620 }
1621
1622 if (!list_empty(head))
1623 queue_work(bc->bc_async_wq, &bc->vf_async_work);
1624
1625 return;
1626 }
1627
1628 static struct qlcnic_async_cmd *
qlcnic_sriov_alloc_async_cmd(struct qlcnic_back_channel * bc,struct qlcnic_cmd_args * cmd)1629 qlcnic_sriov_alloc_async_cmd(struct qlcnic_back_channel *bc,
1630 struct qlcnic_cmd_args *cmd)
1631 {
1632 struct qlcnic_async_cmd *entry = NULL;
1633
1634 entry = kzalloc(sizeof(*entry), GFP_ATOMIC);
1635 if (!entry)
1636 return NULL;
1637
1638 entry->cmd = cmd;
1639
1640 spin_lock(&bc->queue_lock);
1641 list_add_tail(&entry->list, &bc->async_cmd_list);
1642 spin_unlock(&bc->queue_lock);
1643
1644 return entry;
1645 }
1646
qlcnic_sriov_schedule_async_cmd(struct qlcnic_back_channel * bc,struct qlcnic_cmd_args * cmd)1647 static void qlcnic_sriov_schedule_async_cmd(struct qlcnic_back_channel *bc,
1648 struct qlcnic_cmd_args *cmd)
1649 {
1650 struct qlcnic_async_cmd *entry = NULL;
1651
1652 entry = qlcnic_sriov_alloc_async_cmd(bc, cmd);
1653 if (!entry) {
1654 qlcnic_free_mbx_args(cmd);
1655 kfree(cmd);
1656 return;
1657 }
1658
1659 queue_work(bc->bc_async_wq, &bc->vf_async_work);
1660 }
1661
qlcnic_sriov_async_issue_cmd(struct qlcnic_adapter * adapter,struct qlcnic_cmd_args * cmd)1662 static int qlcnic_sriov_async_issue_cmd(struct qlcnic_adapter *adapter,
1663 struct qlcnic_cmd_args *cmd)
1664 {
1665
1666 struct qlcnic_back_channel *bc = &adapter->ahw->sriov->bc;
1667
1668 if (adapter->need_fw_reset)
1669 return -EIO;
1670
1671 qlcnic_sriov_schedule_async_cmd(bc, cmd);
1672
1673 return 0;
1674 }
1675
qlcnic_sriov_vf_reinit_driver(struct qlcnic_adapter * adapter)1676 static int qlcnic_sriov_vf_reinit_driver(struct qlcnic_adapter *adapter)
1677 {
1678 int err;
1679
1680 adapter->need_fw_reset = 0;
1681 qlcnic_83xx_reinit_mbx_work(adapter->ahw->mailbox);
1682 qlcnic_83xx_enable_mbx_interrupt(adapter);
1683
1684 err = qlcnic_sriov_cfg_bc_intr(adapter, 1);
1685 if (err)
1686 return err;
1687
1688 err = qlcnic_sriov_channel_cfg_cmd(adapter, QLCNIC_BC_CMD_CHANNEL_INIT);
1689 if (err)
1690 goto err_out_cleanup_bc_intr;
1691
1692 err = qlcnic_sriov_vf_init_driver(adapter);
1693 if (err)
1694 goto err_out_term_channel;
1695
1696 return 0;
1697
1698 err_out_term_channel:
1699 qlcnic_sriov_channel_cfg_cmd(adapter, QLCNIC_BC_CMD_CHANNEL_TERM);
1700
1701 err_out_cleanup_bc_intr:
1702 qlcnic_sriov_cfg_bc_intr(adapter, 0);
1703 return err;
1704 }
1705
qlcnic_sriov_vf_attach(struct qlcnic_adapter * adapter)1706 static void qlcnic_sriov_vf_attach(struct qlcnic_adapter *adapter)
1707 {
1708 struct net_device *netdev = adapter->netdev;
1709
1710 if (netif_running(netdev)) {
1711 if (!qlcnic_up(adapter, netdev))
1712 qlcnic_restore_indev_addr(netdev, NETDEV_UP);
1713 }
1714
1715 netif_device_attach(netdev);
1716 }
1717
qlcnic_sriov_vf_detach(struct qlcnic_adapter * adapter)1718 static void qlcnic_sriov_vf_detach(struct qlcnic_adapter *adapter)
1719 {
1720 struct qlcnic_hardware_context *ahw = adapter->ahw;
1721 struct qlcnic_intrpt_config *intr_tbl = ahw->intr_tbl;
1722 struct net_device *netdev = adapter->netdev;
1723 u8 i, max_ints = ahw->num_msix - 1;
1724
1725 netif_device_detach(netdev);
1726 qlcnic_83xx_detach_mailbox_work(adapter);
1727 qlcnic_83xx_disable_mbx_intr(adapter);
1728
1729 if (netif_running(netdev))
1730 qlcnic_down(adapter, netdev);
1731
1732 for (i = 0; i < max_ints; i++) {
1733 intr_tbl[i].id = i;
1734 intr_tbl[i].enabled = 0;
1735 intr_tbl[i].src = 0;
1736 }
1737 ahw->reset_context = 0;
1738 }
1739
qlcnic_sriov_vf_handle_dev_ready(struct qlcnic_adapter * adapter)1740 static int qlcnic_sriov_vf_handle_dev_ready(struct qlcnic_adapter *adapter)
1741 {
1742 struct qlcnic_hardware_context *ahw = adapter->ahw;
1743 struct device *dev = &adapter->pdev->dev;
1744 struct qlc_83xx_idc *idc = &ahw->idc;
1745 u8 func = ahw->pci_func;
1746 u32 state;
1747
1748 if ((idc->prev_state == QLC_83XX_IDC_DEV_NEED_RESET) ||
1749 (idc->prev_state == QLC_83XX_IDC_DEV_INIT)) {
1750 if (!qlcnic_sriov_vf_reinit_driver(adapter)) {
1751 qlcnic_sriov_vf_attach(adapter);
1752 adapter->fw_fail_cnt = 0;
1753 dev_info(dev,
1754 "%s: Reinitialization of VF 0x%x done after FW reset\n",
1755 __func__, func);
1756 } else {
1757 dev_err(dev,
1758 "%s: Reinitialization of VF 0x%x failed after FW reset\n",
1759 __func__, func);
1760 state = QLCRDX(ahw, QLC_83XX_IDC_DEV_STATE);
1761 dev_info(dev, "Current state 0x%x after FW reset\n",
1762 state);
1763 }
1764 }
1765
1766 return 0;
1767 }
1768
qlcnic_sriov_vf_handle_context_reset(struct qlcnic_adapter * adapter)1769 static int qlcnic_sriov_vf_handle_context_reset(struct qlcnic_adapter *adapter)
1770 {
1771 struct qlcnic_hardware_context *ahw = adapter->ahw;
1772 struct qlcnic_mailbox *mbx = ahw->mailbox;
1773 struct device *dev = &adapter->pdev->dev;
1774 struct qlc_83xx_idc *idc = &ahw->idc;
1775 u8 func = ahw->pci_func;
1776 u32 state;
1777
1778 adapter->reset_ctx_cnt++;
1779
1780 /* Skip the context reset and check if FW is hung */
1781 if (adapter->reset_ctx_cnt < 3) {
1782 adapter->need_fw_reset = 1;
1783 clear_bit(QLC_83XX_MBX_READY, &mbx->status);
1784 dev_info(dev,
1785 "Resetting context, wait here to check if FW is in failed state\n");
1786 return 0;
1787 }
1788
1789 /* Check if number of resets exceed the threshold.
1790 * If it exceeds the threshold just fail the VF.
1791 */
1792 if (adapter->reset_ctx_cnt > QLC_83XX_VF_RESET_FAIL_THRESH) {
1793 clear_bit(QLC_83XX_MODULE_LOADED, &idc->status);
1794 adapter->tx_timeo_cnt = 0;
1795 adapter->fw_fail_cnt = 0;
1796 adapter->reset_ctx_cnt = 0;
1797 qlcnic_sriov_vf_detach(adapter);
1798 dev_err(dev,
1799 "Device context resets have exceeded the threshold, device interface will be shutdown\n");
1800 return -EIO;
1801 }
1802
1803 dev_info(dev, "Resetting context of VF 0x%x\n", func);
1804 dev_info(dev, "%s: Context reset count %d for VF 0x%x\n",
1805 __func__, adapter->reset_ctx_cnt, func);
1806 set_bit(__QLCNIC_RESETTING, &adapter->state);
1807 adapter->need_fw_reset = 1;
1808 clear_bit(QLC_83XX_MBX_READY, &mbx->status);
1809 qlcnic_sriov_vf_detach(adapter);
1810 adapter->need_fw_reset = 0;
1811
1812 if (!qlcnic_sriov_vf_reinit_driver(adapter)) {
1813 qlcnic_sriov_vf_attach(adapter);
1814 adapter->tx_timeo_cnt = 0;
1815 adapter->reset_ctx_cnt = 0;
1816 adapter->fw_fail_cnt = 0;
1817 dev_info(dev, "Done resetting context for VF 0x%x\n", func);
1818 } else {
1819 dev_err(dev, "%s: Reinitialization of VF 0x%x failed\n",
1820 __func__, func);
1821 state = QLCRDX(ahw, QLC_83XX_IDC_DEV_STATE);
1822 dev_info(dev, "%s: Current state 0x%x\n", __func__, state);
1823 }
1824
1825 return 0;
1826 }
1827
qlcnic_sriov_vf_idc_ready_state(struct qlcnic_adapter * adapter)1828 static int qlcnic_sriov_vf_idc_ready_state(struct qlcnic_adapter *adapter)
1829 {
1830 struct qlcnic_hardware_context *ahw = adapter->ahw;
1831 int ret = 0;
1832
1833 if (ahw->idc.prev_state != QLC_83XX_IDC_DEV_READY)
1834 ret = qlcnic_sriov_vf_handle_dev_ready(adapter);
1835 else if (ahw->reset_context)
1836 ret = qlcnic_sriov_vf_handle_context_reset(adapter);
1837
1838 clear_bit(__QLCNIC_RESETTING, &adapter->state);
1839 return ret;
1840 }
1841
qlcnic_sriov_vf_idc_failed_state(struct qlcnic_adapter * adapter)1842 static int qlcnic_sriov_vf_idc_failed_state(struct qlcnic_adapter *adapter)
1843 {
1844 struct qlc_83xx_idc *idc = &adapter->ahw->idc;
1845
1846 dev_err(&adapter->pdev->dev, "Device is in failed state\n");
1847 if (idc->prev_state == QLC_83XX_IDC_DEV_READY)
1848 qlcnic_sriov_vf_detach(adapter);
1849
1850 clear_bit(QLC_83XX_MODULE_LOADED, &idc->status);
1851 clear_bit(__QLCNIC_RESETTING, &adapter->state);
1852 return -EIO;
1853 }
1854
1855 static int
qlcnic_sriov_vf_idc_need_quiescent_state(struct qlcnic_adapter * adapter)1856 qlcnic_sriov_vf_idc_need_quiescent_state(struct qlcnic_adapter *adapter)
1857 {
1858 struct qlcnic_mailbox *mbx = adapter->ahw->mailbox;
1859 struct qlc_83xx_idc *idc = &adapter->ahw->idc;
1860
1861 dev_info(&adapter->pdev->dev, "Device is in quiescent state\n");
1862 if (idc->prev_state == QLC_83XX_IDC_DEV_READY) {
1863 set_bit(__QLCNIC_RESETTING, &adapter->state);
1864 adapter->tx_timeo_cnt = 0;
1865 adapter->reset_ctx_cnt = 0;
1866 clear_bit(QLC_83XX_MBX_READY, &mbx->status);
1867 qlcnic_sriov_vf_detach(adapter);
1868 }
1869
1870 return 0;
1871 }
1872
qlcnic_sriov_vf_idc_init_reset_state(struct qlcnic_adapter * adapter)1873 static int qlcnic_sriov_vf_idc_init_reset_state(struct qlcnic_adapter *adapter)
1874 {
1875 struct qlcnic_mailbox *mbx = adapter->ahw->mailbox;
1876 struct qlc_83xx_idc *idc = &adapter->ahw->idc;
1877 u8 func = adapter->ahw->pci_func;
1878
1879 if (idc->prev_state == QLC_83XX_IDC_DEV_READY) {
1880 dev_err(&adapter->pdev->dev,
1881 "Firmware hang detected by VF 0x%x\n", func);
1882 set_bit(__QLCNIC_RESETTING, &adapter->state);
1883 adapter->tx_timeo_cnt = 0;
1884 adapter->reset_ctx_cnt = 0;
1885 clear_bit(QLC_83XX_MBX_READY, &mbx->status);
1886 qlcnic_sriov_vf_detach(adapter);
1887 }
1888 return 0;
1889 }
1890
qlcnic_sriov_vf_idc_unknown_state(struct qlcnic_adapter * adapter)1891 static int qlcnic_sriov_vf_idc_unknown_state(struct qlcnic_adapter *adapter)
1892 {
1893 dev_err(&adapter->pdev->dev, "%s: Device in unknown state\n", __func__);
1894 return 0;
1895 }
1896
qlcnic_sriov_vf_periodic_tasks(struct qlcnic_adapter * adapter)1897 static void qlcnic_sriov_vf_periodic_tasks(struct qlcnic_adapter *adapter)
1898 {
1899 if (adapter->fhash.fnum)
1900 qlcnic_prune_lb_filters(adapter);
1901 }
1902
qlcnic_sriov_vf_poll_dev_state(struct work_struct * work)1903 static void qlcnic_sriov_vf_poll_dev_state(struct work_struct *work)
1904 {
1905 struct qlcnic_adapter *adapter;
1906 struct qlc_83xx_idc *idc;
1907 int ret = 0;
1908
1909 adapter = container_of(work, struct qlcnic_adapter, fw_work.work);
1910 idc = &adapter->ahw->idc;
1911 idc->curr_state = QLCRDX(adapter->ahw, QLC_83XX_IDC_DEV_STATE);
1912
1913 switch (idc->curr_state) {
1914 case QLC_83XX_IDC_DEV_READY:
1915 ret = qlcnic_sriov_vf_idc_ready_state(adapter);
1916 break;
1917 case QLC_83XX_IDC_DEV_NEED_RESET:
1918 case QLC_83XX_IDC_DEV_INIT:
1919 ret = qlcnic_sriov_vf_idc_init_reset_state(adapter);
1920 break;
1921 case QLC_83XX_IDC_DEV_NEED_QUISCENT:
1922 ret = qlcnic_sriov_vf_idc_need_quiescent_state(adapter);
1923 break;
1924 case QLC_83XX_IDC_DEV_FAILED:
1925 ret = qlcnic_sriov_vf_idc_failed_state(adapter);
1926 break;
1927 case QLC_83XX_IDC_DEV_QUISCENT:
1928 break;
1929 default:
1930 ret = qlcnic_sriov_vf_idc_unknown_state(adapter);
1931 }
1932
1933 idc->prev_state = idc->curr_state;
1934 qlcnic_sriov_vf_periodic_tasks(adapter);
1935
1936 if (!ret && test_bit(QLC_83XX_MODULE_LOADED, &idc->status))
1937 qlcnic_schedule_work(adapter, qlcnic_sriov_vf_poll_dev_state,
1938 idc->delay);
1939 }
1940
qlcnic_sriov_vf_cancel_fw_work(struct qlcnic_adapter * adapter)1941 static void qlcnic_sriov_vf_cancel_fw_work(struct qlcnic_adapter *adapter)
1942 {
1943 while (test_and_set_bit(__QLCNIC_RESETTING, &adapter->state))
1944 msleep(20);
1945
1946 clear_bit(QLC_83XX_MODULE_LOADED, &adapter->ahw->idc.status);
1947 clear_bit(__QLCNIC_RESETTING, &adapter->state);
1948 cancel_delayed_work_sync(&adapter->fw_work);
1949 }
1950
qlcnic_sriov_check_vlan_id(struct qlcnic_sriov * sriov,struct qlcnic_vf_info * vf,u16 vlan_id)1951 static int qlcnic_sriov_check_vlan_id(struct qlcnic_sriov *sriov,
1952 struct qlcnic_vf_info *vf, u16 vlan_id)
1953 {
1954 int i, err = -EINVAL;
1955
1956 if (!vf->sriov_vlans)
1957 return err;
1958
1959 spin_lock_bh(&vf->vlan_list_lock);
1960
1961 for (i = 0; i < sriov->num_allowed_vlans; i++) {
1962 if (vf->sriov_vlans[i] == vlan_id) {
1963 err = 0;
1964 break;
1965 }
1966 }
1967
1968 spin_unlock_bh(&vf->vlan_list_lock);
1969 return err;
1970 }
1971
qlcnic_sriov_validate_num_vlans(struct qlcnic_sriov * sriov,struct qlcnic_vf_info * vf)1972 static int qlcnic_sriov_validate_num_vlans(struct qlcnic_sriov *sriov,
1973 struct qlcnic_vf_info *vf)
1974 {
1975 int err = 0;
1976
1977 spin_lock_bh(&vf->vlan_list_lock);
1978
1979 if (vf->num_vlan >= sriov->num_allowed_vlans)
1980 err = -EINVAL;
1981
1982 spin_unlock_bh(&vf->vlan_list_lock);
1983 return err;
1984 }
1985
qlcnic_sriov_validate_vlan_cfg(struct qlcnic_adapter * adapter,u16 vid,u8 enable)1986 static int qlcnic_sriov_validate_vlan_cfg(struct qlcnic_adapter *adapter,
1987 u16 vid, u8 enable)
1988 {
1989 struct qlcnic_sriov *sriov = adapter->ahw->sriov;
1990 struct qlcnic_vf_info *vf;
1991 bool vlan_exist;
1992 u8 allowed = 0;
1993 int i;
1994
1995 vf = &adapter->ahw->sriov->vf_info[0];
1996 vlan_exist = qlcnic_sriov_check_any_vlan(vf);
1997 if (sriov->vlan_mode != QLC_GUEST_VLAN_MODE)
1998 return -EINVAL;
1999
2000 if (enable) {
2001 if (qlcnic_83xx_vf_check(adapter) && vlan_exist)
2002 return -EINVAL;
2003
2004 if (qlcnic_sriov_validate_num_vlans(sriov, vf))
2005 return -EINVAL;
2006
2007 if (sriov->any_vlan) {
2008 for (i = 0; i < sriov->num_allowed_vlans; i++) {
2009 if (sriov->allowed_vlans[i] == vid)
2010 allowed = 1;
2011 }
2012
2013 if (!allowed)
2014 return -EINVAL;
2015 }
2016 } else {
2017 if (!vlan_exist || qlcnic_sriov_check_vlan_id(sriov, vf, vid))
2018 return -EINVAL;
2019 }
2020
2021 return 0;
2022 }
2023
qlcnic_sriov_vlan_operation(struct qlcnic_vf_info * vf,u16 vlan_id,enum qlcnic_vlan_operations opcode)2024 static void qlcnic_sriov_vlan_operation(struct qlcnic_vf_info *vf, u16 vlan_id,
2025 enum qlcnic_vlan_operations opcode)
2026 {
2027 struct qlcnic_adapter *adapter = vf->adapter;
2028 struct qlcnic_sriov *sriov;
2029
2030 sriov = adapter->ahw->sriov;
2031
2032 if (!vf->sriov_vlans)
2033 return;
2034
2035 spin_lock_bh(&vf->vlan_list_lock);
2036
2037 switch (opcode) {
2038 case QLC_VLAN_ADD:
2039 qlcnic_sriov_add_vlan_id(sriov, vf, vlan_id);
2040 break;
2041 case QLC_VLAN_DELETE:
2042 qlcnic_sriov_del_vlan_id(sriov, vf, vlan_id);
2043 break;
2044 default:
2045 netdev_err(adapter->netdev, "Invalid VLAN operation\n");
2046 }
2047
2048 spin_unlock_bh(&vf->vlan_list_lock);
2049 return;
2050 }
2051
qlcnic_sriov_cfg_vf_guest_vlan(struct qlcnic_adapter * adapter,u16 vid,u8 enable)2052 int qlcnic_sriov_cfg_vf_guest_vlan(struct qlcnic_adapter *adapter,
2053 u16 vid, u8 enable)
2054 {
2055 struct qlcnic_sriov *sriov = adapter->ahw->sriov;
2056 struct net_device *netdev = adapter->netdev;
2057 struct qlcnic_vf_info *vf;
2058 struct qlcnic_cmd_args cmd;
2059 int ret;
2060
2061 memset(&cmd, 0, sizeof(cmd));
2062 if (vid == 0)
2063 return 0;
2064
2065 vf = &adapter->ahw->sriov->vf_info[0];
2066 ret = qlcnic_sriov_validate_vlan_cfg(adapter, vid, enable);
2067 if (ret)
2068 return ret;
2069
2070 ret = qlcnic_sriov_alloc_bc_mbx_args(&cmd,
2071 QLCNIC_BC_CMD_CFG_GUEST_VLAN);
2072 if (ret)
2073 return ret;
2074
2075 cmd.req.arg[1] = (enable & 1) | vid << 16;
2076
2077 qlcnic_sriov_cleanup_async_list(&sriov->bc);
2078 ret = qlcnic_issue_cmd(adapter, &cmd);
2079 if (ret) {
2080 dev_err(&adapter->pdev->dev,
2081 "Failed to configure guest VLAN, err=%d\n", ret);
2082 } else {
2083 netif_addr_lock_bh(netdev);
2084 qlcnic_free_mac_list(adapter);
2085 netif_addr_unlock_bh(netdev);
2086
2087 if (enable)
2088 qlcnic_sriov_vlan_operation(vf, vid, QLC_VLAN_ADD);
2089 else
2090 qlcnic_sriov_vlan_operation(vf, vid, QLC_VLAN_DELETE);
2091
2092 netif_addr_lock_bh(netdev);
2093 qlcnic_set_multi(netdev);
2094 netif_addr_unlock_bh(netdev);
2095 }
2096
2097 qlcnic_free_mbx_args(&cmd);
2098 return ret;
2099 }
2100
qlcnic_sriov_vf_free_mac_list(struct qlcnic_adapter * adapter)2101 static void qlcnic_sriov_vf_free_mac_list(struct qlcnic_adapter *adapter)
2102 {
2103 struct list_head *head = &adapter->mac_list;
2104 struct qlcnic_mac_vlan_list *cur;
2105
2106 while (!list_empty(head)) {
2107 cur = list_entry(head->next, struct qlcnic_mac_vlan_list, list);
2108 qlcnic_sre_macaddr_change(adapter, cur->mac_addr, cur->vlan_id,
2109 QLCNIC_MAC_DEL);
2110 list_del(&cur->list);
2111 kfree(cur);
2112 }
2113 }
2114
2115
qlcnic_sriov_vf_shutdown(struct pci_dev * pdev)2116 static int qlcnic_sriov_vf_shutdown(struct pci_dev *pdev)
2117 {
2118 struct qlcnic_adapter *adapter = pci_get_drvdata(pdev);
2119 struct net_device *netdev = adapter->netdev;
2120
2121 netif_device_detach(netdev);
2122 qlcnic_cancel_idc_work(adapter);
2123
2124 if (netif_running(netdev))
2125 qlcnic_down(adapter, netdev);
2126
2127 qlcnic_sriov_channel_cfg_cmd(adapter, QLCNIC_BC_CMD_CHANNEL_TERM);
2128 qlcnic_sriov_cfg_bc_intr(adapter, 0);
2129 qlcnic_83xx_disable_mbx_intr(adapter);
2130 cancel_delayed_work_sync(&adapter->idc_aen_work);
2131
2132 return pci_save_state(pdev);
2133 }
2134
qlcnic_sriov_vf_resume(struct qlcnic_adapter * adapter)2135 static int qlcnic_sriov_vf_resume(struct qlcnic_adapter *adapter)
2136 {
2137 struct qlc_83xx_idc *idc = &adapter->ahw->idc;
2138 struct net_device *netdev = adapter->netdev;
2139 int err;
2140
2141 set_bit(QLC_83XX_MODULE_LOADED, &idc->status);
2142 qlcnic_83xx_enable_mbx_interrupt(adapter);
2143 err = qlcnic_sriov_cfg_bc_intr(adapter, 1);
2144 if (err)
2145 return err;
2146
2147 err = qlcnic_sriov_channel_cfg_cmd(adapter, QLCNIC_BC_CMD_CHANNEL_INIT);
2148 if (!err) {
2149 if (netif_running(netdev)) {
2150 err = qlcnic_up(adapter, netdev);
2151 if (!err)
2152 qlcnic_restore_indev_addr(netdev, NETDEV_UP);
2153 }
2154 }
2155
2156 netif_device_attach(netdev);
2157 qlcnic_schedule_work(adapter, qlcnic_sriov_vf_poll_dev_state,
2158 idc->delay);
2159 return err;
2160 }
2161
qlcnic_sriov_alloc_vlans(struct qlcnic_adapter * adapter)2162 int qlcnic_sriov_alloc_vlans(struct qlcnic_adapter *adapter)
2163 {
2164 struct qlcnic_sriov *sriov = adapter->ahw->sriov;
2165 struct qlcnic_vf_info *vf;
2166 int i;
2167
2168 for (i = 0; i < sriov->num_vfs; i++) {
2169 vf = &sriov->vf_info[i];
2170 vf->sriov_vlans = kcalloc(sriov->num_allowed_vlans,
2171 sizeof(*vf->sriov_vlans), GFP_KERNEL);
2172 if (!vf->sriov_vlans) {
2173 qlcnic_sriov_free_vlans(adapter);
2174 return -ENOMEM;
2175 }
2176 }
2177
2178 return 0;
2179 }
2180
qlcnic_sriov_free_vlans(struct qlcnic_adapter * adapter)2181 void qlcnic_sriov_free_vlans(struct qlcnic_adapter *adapter)
2182 {
2183 struct qlcnic_sriov *sriov = adapter->ahw->sriov;
2184 struct qlcnic_vf_info *vf;
2185 int i;
2186
2187 for (i = 0; i < sriov->num_vfs; i++) {
2188 vf = &sriov->vf_info[i];
2189 kfree(vf->sriov_vlans);
2190 vf->sriov_vlans = NULL;
2191 }
2192 }
2193
qlcnic_sriov_add_vlan_id(struct qlcnic_sriov * sriov,struct qlcnic_vf_info * vf,u16 vlan_id)2194 void qlcnic_sriov_add_vlan_id(struct qlcnic_sriov *sriov,
2195 struct qlcnic_vf_info *vf, u16 vlan_id)
2196 {
2197 int i;
2198
2199 for (i = 0; i < sriov->num_allowed_vlans; i++) {
2200 if (!vf->sriov_vlans[i]) {
2201 vf->sriov_vlans[i] = vlan_id;
2202 vf->num_vlan++;
2203 return;
2204 }
2205 }
2206 }
2207
qlcnic_sriov_del_vlan_id(struct qlcnic_sriov * sriov,struct qlcnic_vf_info * vf,u16 vlan_id)2208 void qlcnic_sriov_del_vlan_id(struct qlcnic_sriov *sriov,
2209 struct qlcnic_vf_info *vf, u16 vlan_id)
2210 {
2211 int i;
2212
2213 for (i = 0; i < sriov->num_allowed_vlans; i++) {
2214 if (vf->sriov_vlans[i] == vlan_id) {
2215 vf->sriov_vlans[i] = 0;
2216 vf->num_vlan--;
2217 return;
2218 }
2219 }
2220 }
2221
qlcnic_sriov_check_any_vlan(struct qlcnic_vf_info * vf)2222 bool qlcnic_sriov_check_any_vlan(struct qlcnic_vf_info *vf)
2223 {
2224 bool err = false;
2225
2226 spin_lock_bh(&vf->vlan_list_lock);
2227
2228 if (vf->num_vlan)
2229 err = true;
2230
2231 spin_unlock_bh(&vf->vlan_list_lock);
2232 return err;
2233 }
2234