1/*
2 * QLogic qlcnic NIC Driver
3 * Copyright (c) 2009-2013 QLogic Corporation
4 *
5 * See LICENSE.qlcnic for copyright and licensing details.
6 */
7
8#include <linux/vmalloc.h>
9#include <linux/interrupt.h>
10
11#include "qlcnic.h"
12#include "qlcnic_sriov.h"
13#include "qlcnic_hw.h"
14
15#include <linux/swab.h>
16#include <linux/dma-mapping.h>
17#include <linux/if_vlan.h>
18#include <net/ip.h>
19#include <linux/ipv6.h>
20#include <linux/inetdevice.h>
21#include <linux/aer.h>
22#include <linux/log2.h>
23#include <linux/pci.h>
24#ifdef CONFIG_QLCNIC_VXLAN
25#include <net/vxlan.h>
26#endif
27
28MODULE_DESCRIPTION("QLogic 1/10 GbE Converged/Intelligent Ethernet Driver");
29MODULE_LICENSE("GPL");
30MODULE_VERSION(QLCNIC_LINUX_VERSIONID);
31MODULE_FIRMWARE(QLCNIC_UNIFIED_ROMIMAGE_NAME);
32
33char qlcnic_driver_name[] = "qlcnic";
34static const char qlcnic_driver_string[] = "QLogic 1/10 GbE "
35	"Converged/Intelligent Ethernet Driver v" QLCNIC_LINUX_VERSIONID;
36
37static int qlcnic_mac_learn;
38module_param(qlcnic_mac_learn, int, 0444);
39MODULE_PARM_DESC(qlcnic_mac_learn,
40		 "Mac Filter (0=learning is disabled, 1=Driver learning is enabled, 2=FDB learning is enabled)");
41
42int qlcnic_use_msi = 1;
43MODULE_PARM_DESC(use_msi, "MSI interrupt (0=disabled, 1=enabled)");
44module_param_named(use_msi, qlcnic_use_msi, int, 0444);
45
46int qlcnic_use_msi_x = 1;
47MODULE_PARM_DESC(use_msi_x, "MSI-X interrupt (0=disabled, 1=enabled)");
48module_param_named(use_msi_x, qlcnic_use_msi_x, int, 0444);
49
50int qlcnic_auto_fw_reset = 1;
51MODULE_PARM_DESC(auto_fw_reset, "Auto firmware reset (0=disabled, 1=enabled)");
52module_param_named(auto_fw_reset, qlcnic_auto_fw_reset, int, 0644);
53
54int qlcnic_load_fw_file;
55MODULE_PARM_DESC(load_fw_file, "Load firmware from (0=flash, 1=file, 2=POST in fast mode, 3= POST in medium mode, 4=POST in slow mode)");
56module_param_named(load_fw_file, qlcnic_load_fw_file, int, 0444);
57
58static int qlcnic_probe(struct pci_dev *pdev, const struct pci_device_id *ent);
59static void qlcnic_remove(struct pci_dev *pdev);
60static int qlcnic_open(struct net_device *netdev);
61static int qlcnic_close(struct net_device *netdev);
62static void qlcnic_tx_timeout(struct net_device *netdev);
63static void qlcnic_attach_work(struct work_struct *work);
64static void qlcnic_fwinit_work(struct work_struct *work);
65#ifdef CONFIG_NET_POLL_CONTROLLER
66static void qlcnic_poll_controller(struct net_device *netdev);
67#endif
68
69static void qlcnic_idc_debug_info(struct qlcnic_adapter *adapter, u8 encoding);
70static int qlcnic_can_start_firmware(struct qlcnic_adapter *adapter);
71
72static irqreturn_t qlcnic_tmp_intr(int irq, void *data);
73static irqreturn_t qlcnic_intr(int irq, void *data);
74static irqreturn_t qlcnic_msi_intr(int irq, void *data);
75static irqreturn_t qlcnic_msix_intr(int irq, void *data);
76static irqreturn_t qlcnic_msix_tx_intr(int irq, void *data);
77
78static struct net_device_stats *qlcnic_get_stats(struct net_device *netdev);
79static int qlcnic_start_firmware(struct qlcnic_adapter *);
80
81static void qlcnic_free_lb_filters_mem(struct qlcnic_adapter *adapter);
82static void qlcnic_dev_set_npar_ready(struct qlcnic_adapter *);
83static int qlcnicvf_start_firmware(struct qlcnic_adapter *);
84static int qlcnic_vlan_rx_add(struct net_device *, __be16, u16);
85static int qlcnic_vlan_rx_del(struct net_device *, __be16, u16);
86
87static int qlcnic_82xx_setup_intr(struct qlcnic_adapter *);
88static void qlcnic_82xx_dev_request_reset(struct qlcnic_adapter *, u32);
89static irqreturn_t qlcnic_82xx_clear_legacy_intr(struct qlcnic_adapter *);
90static pci_ers_result_t qlcnic_82xx_io_slot_reset(struct pci_dev *);
91static int qlcnic_82xx_start_firmware(struct qlcnic_adapter *);
92static void qlcnic_82xx_io_resume(struct pci_dev *);
93static void qlcnic_82xx_set_mac_filter_count(struct qlcnic_adapter *);
94static pci_ers_result_t qlcnic_82xx_io_error_detected(struct pci_dev *,
95						      pci_channel_state_t);
96static u32 qlcnic_vlan_tx_check(struct qlcnic_adapter *adapter)
97{
98	struct qlcnic_hardware_context *ahw = adapter->ahw;
99
100	if (adapter->pdev->device == PCI_DEVICE_ID_QLOGIC_QLE824X)
101		return ahw->capabilities & QLCNIC_FW_CAPABILITY_FVLANTX;
102	else
103		return 1;
104}
105
106/*  PCI Device ID Table  */
107#define ENTRY(device) \
108	{PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, (device)), \
109	.class = PCI_CLASS_NETWORK_ETHERNET << 8, .class_mask = ~0}
110
111static const struct pci_device_id qlcnic_pci_tbl[] = {
112	ENTRY(PCI_DEVICE_ID_QLOGIC_QLE824X),
113	ENTRY(PCI_DEVICE_ID_QLOGIC_QLE834X),
114	ENTRY(PCI_DEVICE_ID_QLOGIC_QLE8830),
115	ENTRY(PCI_DEVICE_ID_QLOGIC_VF_QLE834X),
116	ENTRY(PCI_DEVICE_ID_QLOGIC_QLE844X),
117	ENTRY(PCI_DEVICE_ID_QLOGIC_VF_QLE844X),
118	{0,}
119};
120
121MODULE_DEVICE_TABLE(pci, qlcnic_pci_tbl);
122
123
124inline void qlcnic_update_cmd_producer(struct qlcnic_host_tx_ring *tx_ring)
125{
126	writel(tx_ring->producer, tx_ring->crb_cmd_producer);
127}
128
129static const u32 msi_tgt_status[8] = {
130	ISR_INT_TARGET_STATUS, ISR_INT_TARGET_STATUS_F1,
131	ISR_INT_TARGET_STATUS_F2, ISR_INT_TARGET_STATUS_F3,
132	ISR_INT_TARGET_STATUS_F4, ISR_INT_TARGET_STATUS_F5,
133	ISR_INT_TARGET_STATUS_F6, ISR_INT_TARGET_STATUS_F7
134};
135
136static const u32 qlcnic_reg_tbl[] = {
137	0x1B20A8,	/* PEG_HALT_STAT1 */
138	0x1B20AC,	/* PEG_HALT_STAT2 */
139	0x1B20B0,	/* FW_HEARTBEAT */
140	0x1B2100,	/* LOCK ID */
141	0x1B2128,	/* FW_CAPABILITIES */
142	0x1B2138,	/* drv active */
143	0x1B2140,	/* dev state */
144	0x1B2144,	/* drv state */
145	0x1B2148,	/* drv scratch */
146	0x1B214C,	/* dev partition info */
147	0x1B2174,	/* drv idc ver */
148	0x1B2150,	/* fw version major */
149	0x1B2154,	/* fw version minor */
150	0x1B2158,	/* fw version sub */
151	0x1B219C,	/* npar state */
152	0x1B21FC,	/* FW_IMG_VALID */
153	0x1B2250,	/* CMD_PEG_STATE */
154	0x1B233C,	/* RCV_PEG_STATE */
155	0x1B23B4,	/* ASIC TEMP */
156	0x1B216C,	/* FW api */
157	0x1B2170,	/* drv op mode */
158	0x13C010,	/* flash lock */
159	0x13C014,	/* flash unlock */
160};
161
162static const struct qlcnic_board_info qlcnic_boards[] = {
163	{ PCI_VENDOR_ID_QLOGIC,
164	  PCI_DEVICE_ID_QLOGIC_QLE844X,
165	  0x0,
166	  0x0,
167	  "8400 series 10GbE Converged Network Adapter (TCP/IP Networking)" },
168	{ PCI_VENDOR_ID_QLOGIC,
169	  PCI_DEVICE_ID_QLOGIC_QLE834X,
170	  PCI_VENDOR_ID_QLOGIC,
171	  0x24e,
172	  "8300 Series Dual Port 10GbE Converged Network Adapter "
173	  "(TCP/IP Networking)" },
174	{ PCI_VENDOR_ID_QLOGIC,
175	  PCI_DEVICE_ID_QLOGIC_QLE834X,
176	  PCI_VENDOR_ID_QLOGIC,
177	  0x243,
178	  "8300 Series Single Port 10GbE Converged Network Adapter "
179	  "(TCP/IP Networking)" },
180	{ PCI_VENDOR_ID_QLOGIC,
181	  PCI_DEVICE_ID_QLOGIC_QLE834X,
182	  PCI_VENDOR_ID_QLOGIC,
183	  0x24a,
184	  "8300 Series Dual Port 10GbE Converged Network Adapter "
185	  "(TCP/IP Networking)" },
186	{ PCI_VENDOR_ID_QLOGIC,
187	  PCI_DEVICE_ID_QLOGIC_QLE834X,
188	  PCI_VENDOR_ID_QLOGIC,
189	  0x246,
190	  "8300 Series Dual Port 10GbE Converged Network Adapter "
191	  "(TCP/IP Networking)" },
192	{ PCI_VENDOR_ID_QLOGIC,
193	  PCI_DEVICE_ID_QLOGIC_QLE834X,
194	  PCI_VENDOR_ID_QLOGIC,
195	  0x252,
196	  "8300 Series Dual Port 10GbE Converged Network Adapter "
197	  "(TCP/IP Networking)" },
198	{ PCI_VENDOR_ID_QLOGIC,
199	  PCI_DEVICE_ID_QLOGIC_QLE834X,
200	  PCI_VENDOR_ID_QLOGIC,
201	  0x26e,
202	  "8300 Series Dual Port 10GbE Converged Network Adapter "
203	  "(TCP/IP Networking)" },
204	{ PCI_VENDOR_ID_QLOGIC,
205	  PCI_DEVICE_ID_QLOGIC_QLE834X,
206	  PCI_VENDOR_ID_QLOGIC,
207	  0x260,
208	  "8300 Series Dual Port 10GbE Converged Network Adapter "
209	  "(TCP/IP Networking)" },
210	{ PCI_VENDOR_ID_QLOGIC,
211	  PCI_DEVICE_ID_QLOGIC_QLE834X,
212	  PCI_VENDOR_ID_QLOGIC,
213	  0x266,
214	  "8300 Series Single Port 10GbE Converged Network Adapter "
215	  "(TCP/IP Networking)" },
216	{ PCI_VENDOR_ID_QLOGIC,
217	  PCI_DEVICE_ID_QLOGIC_QLE834X,
218	  PCI_VENDOR_ID_QLOGIC,
219	  0x269,
220	  "8300 Series Dual Port 10GbE Converged Network Adapter "
221	  "(TCP/IP Networking)" },
222	{ PCI_VENDOR_ID_QLOGIC,
223	  PCI_DEVICE_ID_QLOGIC_QLE834X,
224	  PCI_VENDOR_ID_QLOGIC,
225	  0x271,
226	  "8300 Series Dual Port 10GbE Converged Network Adapter "
227	  "(TCP/IP Networking)" },
228	{ PCI_VENDOR_ID_QLOGIC,
229	  PCI_DEVICE_ID_QLOGIC_QLE834X,
230	  0x0, 0x0, "8300 Series 1/10GbE Controller" },
231	{ PCI_VENDOR_ID_QLOGIC,
232	  PCI_DEVICE_ID_QLOGIC_QLE8830,
233	  0x0,
234	  0x0,
235	  "8830 Series 1/10GbE Controller" },
236	{ PCI_VENDOR_ID_QLOGIC,
237	  PCI_DEVICE_ID_QLOGIC_QLE824X,
238	  PCI_VENDOR_ID_QLOGIC,
239	  0x203,
240	  "8200 Series Single Port 10GbE Converged Network Adapter"
241	  "(TCP/IP Networking)" },
242	{ PCI_VENDOR_ID_QLOGIC,
243	  PCI_DEVICE_ID_QLOGIC_QLE824X,
244	  PCI_VENDOR_ID_QLOGIC,
245	  0x207,
246	  "8200 Series Dual Port 10GbE Converged Network Adapter"
247	  "(TCP/IP Networking)" },
248	{ PCI_VENDOR_ID_QLOGIC,
249	  PCI_DEVICE_ID_QLOGIC_QLE824X,
250	  PCI_VENDOR_ID_QLOGIC,
251	  0x20b,
252	  "3200 Series Dual Port 10Gb Intelligent Ethernet Adapter" },
253	{ PCI_VENDOR_ID_QLOGIC,
254	  PCI_DEVICE_ID_QLOGIC_QLE824X,
255	  PCI_VENDOR_ID_QLOGIC,
256	  0x20c,
257	  "3200 Series Quad Port 1Gb Intelligent Ethernet Adapter" },
258	{ PCI_VENDOR_ID_QLOGIC,
259	  PCI_DEVICE_ID_QLOGIC_QLE824X,
260	  PCI_VENDOR_ID_QLOGIC,
261	  0x20f,
262	  "3200 Series Single Port 10Gb Intelligent Ethernet Adapter" },
263	{ PCI_VENDOR_ID_QLOGIC,
264	  PCI_DEVICE_ID_QLOGIC_QLE824X,
265	  0x103c, 0x3733,
266	  "NC523SFP 10Gb 2-port Server Adapter" },
267	{ PCI_VENDOR_ID_QLOGIC,
268	  PCI_DEVICE_ID_QLOGIC_QLE824X,
269	  0x103c, 0x3346,
270	  "CN1000Q Dual Port Converged Network Adapter" },
271	{ PCI_VENDOR_ID_QLOGIC,
272	  PCI_DEVICE_ID_QLOGIC_QLE824X,
273	  PCI_VENDOR_ID_QLOGIC,
274	  0x210,
275	  "QME8242-k 10GbE Dual Port Mezzanine Card" },
276	{ PCI_VENDOR_ID_QLOGIC,
277	  PCI_DEVICE_ID_QLOGIC_QLE824X,
278	  0x0, 0x0, "cLOM8214 1/10GbE Controller" },
279};
280
281#define NUM_SUPPORTED_BOARDS ARRAY_SIZE(qlcnic_boards)
282
283static const
284struct qlcnic_legacy_intr_set legacy_intr[] = QLCNIC_LEGACY_INTR_CONFIG;
285
286int qlcnic_alloc_sds_rings(struct qlcnic_recv_context *recv_ctx, int count)
287{
288	int size = sizeof(struct qlcnic_host_sds_ring) * count;
289
290	recv_ctx->sds_rings = kzalloc(size, GFP_KERNEL);
291
292	return recv_ctx->sds_rings == NULL;
293}
294
295void qlcnic_free_sds_rings(struct qlcnic_recv_context *recv_ctx)
296{
297	kfree(recv_ctx->sds_rings);
298	recv_ctx->sds_rings = NULL;
299}
300
301int qlcnic_read_mac_addr(struct qlcnic_adapter *adapter)
302{
303	struct net_device *netdev = adapter->netdev;
304	struct pci_dev *pdev = adapter->pdev;
305	u8 mac_addr[ETH_ALEN];
306	int ret;
307
308	ret = qlcnic_get_mac_address(adapter, mac_addr,
309				     adapter->ahw->pci_func);
310	if (ret)
311		return ret;
312
313	memcpy(netdev->dev_addr, mac_addr, ETH_ALEN);
314	memcpy(adapter->mac_addr, netdev->dev_addr, netdev->addr_len);
315
316	/* set station address */
317
318	if (!is_valid_ether_addr(netdev->dev_addr))
319		dev_warn(&pdev->dev, "Bad MAC address %pM.\n",
320					netdev->dev_addr);
321
322	return 0;
323}
324
325static void qlcnic_delete_adapter_mac(struct qlcnic_adapter *adapter)
326{
327	struct qlcnic_mac_vlan_list *cur;
328	struct list_head *head;
329
330	list_for_each(head, &adapter->mac_list) {
331		cur = list_entry(head, struct qlcnic_mac_vlan_list, list);
332		if (ether_addr_equal_unaligned(adapter->mac_addr, cur->mac_addr)) {
333			qlcnic_sre_macaddr_change(adapter, cur->mac_addr,
334						  0, QLCNIC_MAC_DEL);
335			list_del(&cur->list);
336			kfree(cur);
337			return;
338		}
339	}
340}
341
342static int qlcnic_set_mac(struct net_device *netdev, void *p)
343{
344	struct qlcnic_adapter *adapter = netdev_priv(netdev);
345	struct sockaddr *addr = p;
346
347	if (qlcnic_sriov_vf_check(adapter))
348		return -EINVAL;
349
350	if ((adapter->flags & QLCNIC_MAC_OVERRIDE_DISABLED))
351		return -EOPNOTSUPP;
352
353	if (!is_valid_ether_addr(addr->sa_data))
354		return -EINVAL;
355
356	if (ether_addr_equal_unaligned(adapter->mac_addr, addr->sa_data))
357		return 0;
358
359	if (test_bit(__QLCNIC_DEV_UP, &adapter->state)) {
360		netif_device_detach(netdev);
361		qlcnic_napi_disable(adapter);
362	}
363
364	qlcnic_delete_adapter_mac(adapter);
365	memcpy(adapter->mac_addr, addr->sa_data, netdev->addr_len);
366	memcpy(netdev->dev_addr, addr->sa_data, netdev->addr_len);
367	qlcnic_set_multi(adapter->netdev);
368
369	if (test_bit(__QLCNIC_DEV_UP, &adapter->state)) {
370		netif_device_attach(netdev);
371		qlcnic_napi_enable(adapter);
372	}
373	return 0;
374}
375
376static int qlcnic_fdb_del(struct ndmsg *ndm, struct nlattr *tb[],
377			struct net_device *netdev,
378			const unsigned char *addr, u16 vid)
379{
380	struct qlcnic_adapter *adapter = netdev_priv(netdev);
381	int err = -EOPNOTSUPP;
382
383	if (!adapter->fdb_mac_learn)
384		return ndo_dflt_fdb_del(ndm, tb, netdev, addr, vid);
385
386	if ((adapter->flags & QLCNIC_ESWITCH_ENABLED) ||
387	    qlcnic_sriov_check(adapter)) {
388		if (is_unicast_ether_addr(addr)) {
389			err = dev_uc_del(netdev, addr);
390			if (!err)
391				err = qlcnic_nic_del_mac(adapter, addr);
392		} else if (is_multicast_ether_addr(addr)) {
393			err = dev_mc_del(netdev, addr);
394		} else {
395			err =  -EINVAL;
396		}
397	}
398	return err;
399}
400
401static int qlcnic_fdb_add(struct ndmsg *ndm, struct nlattr *tb[],
402			struct net_device *netdev,
403			const unsigned char *addr, u16 vid, u16 flags)
404{
405	struct qlcnic_adapter *adapter = netdev_priv(netdev);
406	int err = 0;
407
408	if (!adapter->fdb_mac_learn)
409		return ndo_dflt_fdb_add(ndm, tb, netdev, addr, vid, flags);
410
411	if (!(adapter->flags & QLCNIC_ESWITCH_ENABLED) &&
412	    !qlcnic_sriov_check(adapter)) {
413		pr_info("%s: FDB e-switch is not enabled\n", __func__);
414		return -EOPNOTSUPP;
415	}
416
417	if (ether_addr_equal(addr, adapter->mac_addr))
418		return err;
419
420	if (is_unicast_ether_addr(addr)) {
421		if (netdev_uc_count(netdev) < adapter->ahw->max_uc_count)
422			err = dev_uc_add_excl(netdev, addr);
423		else
424			err = -ENOMEM;
425	} else if (is_multicast_ether_addr(addr)) {
426		err = dev_mc_add_excl(netdev, addr);
427	} else {
428		err = -EINVAL;
429	}
430
431	return err;
432}
433
434static int qlcnic_fdb_dump(struct sk_buff *skb, struct netlink_callback *ncb,
435			struct net_device *netdev,
436			struct net_device *filter_dev, int idx)
437{
438	struct qlcnic_adapter *adapter = netdev_priv(netdev);
439
440	if (!adapter->fdb_mac_learn)
441		return ndo_dflt_fdb_dump(skb, ncb, netdev, filter_dev, idx);
442
443	if ((adapter->flags & QLCNIC_ESWITCH_ENABLED) ||
444	    qlcnic_sriov_check(adapter))
445		idx = ndo_dflt_fdb_dump(skb, ncb, netdev, filter_dev, idx);
446
447	return idx;
448}
449
450static void qlcnic_82xx_cancel_idc_work(struct qlcnic_adapter *adapter)
451{
452	while (test_and_set_bit(__QLCNIC_RESETTING, &adapter->state))
453		usleep_range(10000, 11000);
454
455	if (!adapter->fw_work.work.func)
456		return;
457
458	cancel_delayed_work_sync(&adapter->fw_work);
459}
460
461static int qlcnic_get_phys_port_id(struct net_device *netdev,
462				   struct netdev_phys_item_id *ppid)
463{
464	struct qlcnic_adapter *adapter = netdev_priv(netdev);
465	struct qlcnic_hardware_context *ahw = adapter->ahw;
466
467	if (!(adapter->flags & QLCNIC_HAS_PHYS_PORT_ID))
468		return -EOPNOTSUPP;
469
470	ppid->id_len = sizeof(ahw->phys_port_id);
471	memcpy(ppid->id, ahw->phys_port_id, ppid->id_len);
472
473	return 0;
474}
475
476#ifdef CONFIG_QLCNIC_VXLAN
477static void qlcnic_add_vxlan_port(struct net_device *netdev,
478				  sa_family_t sa_family, __be16 port)
479{
480	struct qlcnic_adapter *adapter = netdev_priv(netdev);
481	struct qlcnic_hardware_context *ahw = adapter->ahw;
482
483	/* Adapter supports only one VXLAN port. Use very first port
484	 * for enabling offload
485	 */
486	if (!qlcnic_encap_rx_offload(adapter) || ahw->vxlan_port)
487		return;
488
489	ahw->vxlan_port = ntohs(port);
490	adapter->flags |= QLCNIC_ADD_VXLAN_PORT;
491}
492
493static void qlcnic_del_vxlan_port(struct net_device *netdev,
494				  sa_family_t sa_family, __be16 port)
495{
496	struct qlcnic_adapter *adapter = netdev_priv(netdev);
497	struct qlcnic_hardware_context *ahw = adapter->ahw;
498
499	if (!qlcnic_encap_rx_offload(adapter) || !ahw->vxlan_port ||
500	    (ahw->vxlan_port != ntohs(port)))
501		return;
502
503	adapter->flags |= QLCNIC_DEL_VXLAN_PORT;
504}
505
506static netdev_features_t qlcnic_features_check(struct sk_buff *skb,
507					       struct net_device *dev,
508					       netdev_features_t features)
509{
510	features = vlan_features_check(skb, features);
511	return vxlan_features_check(skb, features);
512}
513#endif
514
515static const struct net_device_ops qlcnic_netdev_ops = {
516	.ndo_open	   = qlcnic_open,
517	.ndo_stop	   = qlcnic_close,
518	.ndo_start_xmit    = qlcnic_xmit_frame,
519	.ndo_get_stats	   = qlcnic_get_stats,
520	.ndo_validate_addr = eth_validate_addr,
521	.ndo_set_rx_mode   = qlcnic_set_multi,
522	.ndo_set_mac_address    = qlcnic_set_mac,
523	.ndo_change_mtu	   = qlcnic_change_mtu,
524	.ndo_fix_features  = qlcnic_fix_features,
525	.ndo_set_features  = qlcnic_set_features,
526	.ndo_tx_timeout	   = qlcnic_tx_timeout,
527	.ndo_vlan_rx_add_vid	= qlcnic_vlan_rx_add,
528	.ndo_vlan_rx_kill_vid	= qlcnic_vlan_rx_del,
529	.ndo_fdb_add		= qlcnic_fdb_add,
530	.ndo_fdb_del		= qlcnic_fdb_del,
531	.ndo_fdb_dump		= qlcnic_fdb_dump,
532	.ndo_get_phys_port_id	= qlcnic_get_phys_port_id,
533#ifdef CONFIG_QLCNIC_VXLAN
534	.ndo_add_vxlan_port	= qlcnic_add_vxlan_port,
535	.ndo_del_vxlan_port	= qlcnic_del_vxlan_port,
536	.ndo_features_check	= qlcnic_features_check,
537#endif
538#ifdef CONFIG_NET_POLL_CONTROLLER
539	.ndo_poll_controller = qlcnic_poll_controller,
540#endif
541#ifdef CONFIG_QLCNIC_SRIOV
542	.ndo_set_vf_mac		= qlcnic_sriov_set_vf_mac,
543	.ndo_set_vf_rate	= qlcnic_sriov_set_vf_tx_rate,
544	.ndo_get_vf_config	= qlcnic_sriov_get_vf_config,
545	.ndo_set_vf_vlan	= qlcnic_sriov_set_vf_vlan,
546	.ndo_set_vf_spoofchk	= qlcnic_sriov_set_vf_spoofchk,
547#endif
548};
549
550static const struct net_device_ops qlcnic_netdev_failed_ops = {
551	.ndo_open	   = qlcnic_open,
552};
553
554static struct qlcnic_nic_template qlcnic_ops = {
555	.config_bridged_mode	= qlcnic_config_bridged_mode,
556	.config_led		= qlcnic_82xx_config_led,
557	.start_firmware		= qlcnic_82xx_start_firmware,
558	.request_reset		= qlcnic_82xx_dev_request_reset,
559	.cancel_idc_work	= qlcnic_82xx_cancel_idc_work,
560	.napi_add		= qlcnic_82xx_napi_add,
561	.napi_del		= qlcnic_82xx_napi_del,
562	.config_ipaddr		= qlcnic_82xx_config_ipaddr,
563	.shutdown		= qlcnic_82xx_shutdown,
564	.resume			= qlcnic_82xx_resume,
565	.clear_legacy_intr	= qlcnic_82xx_clear_legacy_intr,
566};
567
568struct qlcnic_nic_template qlcnic_vf_ops = {
569	.config_bridged_mode	= qlcnicvf_config_bridged_mode,
570	.config_led		= qlcnicvf_config_led,
571	.start_firmware		= qlcnicvf_start_firmware
572};
573
574static struct qlcnic_hardware_ops qlcnic_hw_ops = {
575	.read_crb			= qlcnic_82xx_read_crb,
576	.write_crb			= qlcnic_82xx_write_crb,
577	.read_reg			= qlcnic_82xx_hw_read_wx_2M,
578	.write_reg			= qlcnic_82xx_hw_write_wx_2M,
579	.get_mac_address		= qlcnic_82xx_get_mac_address,
580	.setup_intr			= qlcnic_82xx_setup_intr,
581	.alloc_mbx_args			= qlcnic_82xx_alloc_mbx_args,
582	.mbx_cmd			= qlcnic_82xx_issue_cmd,
583	.get_func_no			= qlcnic_82xx_get_func_no,
584	.api_lock			= qlcnic_82xx_api_lock,
585	.api_unlock			= qlcnic_82xx_api_unlock,
586	.add_sysfs			= qlcnic_82xx_add_sysfs,
587	.remove_sysfs			= qlcnic_82xx_remove_sysfs,
588	.process_lb_rcv_ring_diag	= qlcnic_82xx_process_rcv_ring_diag,
589	.create_rx_ctx			= qlcnic_82xx_fw_cmd_create_rx_ctx,
590	.create_tx_ctx			= qlcnic_82xx_fw_cmd_create_tx_ctx,
591	.del_rx_ctx			= qlcnic_82xx_fw_cmd_del_rx_ctx,
592	.del_tx_ctx			= qlcnic_82xx_fw_cmd_del_tx_ctx,
593	.setup_link_event		= qlcnic_82xx_linkevent_request,
594	.get_nic_info			= qlcnic_82xx_get_nic_info,
595	.get_pci_info			= qlcnic_82xx_get_pci_info,
596	.set_nic_info			= qlcnic_82xx_set_nic_info,
597	.change_macvlan			= qlcnic_82xx_sre_macaddr_change,
598	.napi_enable			= qlcnic_82xx_napi_enable,
599	.napi_disable			= qlcnic_82xx_napi_disable,
600	.config_intr_coal		= qlcnic_82xx_config_intr_coalesce,
601	.config_rss			= qlcnic_82xx_config_rss,
602	.config_hw_lro			= qlcnic_82xx_config_hw_lro,
603	.config_loopback		= qlcnic_82xx_set_lb_mode,
604	.clear_loopback			= qlcnic_82xx_clear_lb_mode,
605	.config_promisc_mode		= qlcnic_82xx_nic_set_promisc,
606	.change_l2_filter		= qlcnic_82xx_change_filter,
607	.get_board_info			= qlcnic_82xx_get_board_info,
608	.set_mac_filter_count		= qlcnic_82xx_set_mac_filter_count,
609	.free_mac_list			= qlcnic_82xx_free_mac_list,
610	.read_phys_port_id		= qlcnic_82xx_read_phys_port_id,
611	.io_error_detected		= qlcnic_82xx_io_error_detected,
612	.io_slot_reset			= qlcnic_82xx_io_slot_reset,
613	.io_resume			= qlcnic_82xx_io_resume,
614	.get_beacon_state		= qlcnic_82xx_get_beacon_state,
615	.enable_sds_intr		= qlcnic_82xx_enable_sds_intr,
616	.disable_sds_intr		= qlcnic_82xx_disable_sds_intr,
617	.enable_tx_intr			= qlcnic_82xx_enable_tx_intr,
618	.disable_tx_intr		= qlcnic_82xx_disable_tx_intr,
619	.get_saved_state		= qlcnic_82xx_get_saved_state,
620	.set_saved_state		= qlcnic_82xx_set_saved_state,
621	.cache_tmpl_hdr_values		= qlcnic_82xx_cache_tmpl_hdr_values,
622	.get_cap_size			= qlcnic_82xx_get_cap_size,
623	.set_sys_info			= qlcnic_82xx_set_sys_info,
624	.store_cap_mask			= qlcnic_82xx_store_cap_mask,
625};
626
627static int qlcnic_check_multi_tx_capability(struct qlcnic_adapter *adapter)
628{
629	struct qlcnic_hardware_context *ahw = adapter->ahw;
630
631	if (qlcnic_82xx_check(adapter) &&
632	    (ahw->extra_capability[0] & QLCNIC_FW_CAPABILITY_2_MULTI_TX)) {
633		test_and_set_bit(__QLCNIC_MULTI_TX_UNIQUE, &adapter->state);
634		return 0;
635	} else {
636		return 1;
637	}
638}
639
640static int qlcnic_max_rings(struct qlcnic_adapter *adapter, u8 ring_cnt,
641			    int queue_type)
642{
643	int num_rings, max_rings = QLCNIC_MAX_SDS_RINGS;
644
645	if (queue_type == QLCNIC_RX_QUEUE)
646		max_rings = adapter->max_sds_rings;
647	else if (queue_type == QLCNIC_TX_QUEUE)
648		max_rings = adapter->max_tx_rings;
649
650	num_rings = rounddown_pow_of_two(min_t(int, num_online_cpus(),
651					      max_rings));
652
653	if (ring_cnt > num_rings)
654		return num_rings;
655	else
656		return ring_cnt;
657}
658
659void qlcnic_set_tx_ring_count(struct qlcnic_adapter *adapter, u8 tx_cnt)
660{
661	/* 83xx adapter does not have max_tx_rings intialized in probe */
662	if (adapter->max_tx_rings)
663		adapter->drv_tx_rings = qlcnic_max_rings(adapter, tx_cnt,
664							 QLCNIC_TX_QUEUE);
665	else
666		adapter->drv_tx_rings = tx_cnt;
667}
668
669void qlcnic_set_sds_ring_count(struct qlcnic_adapter *adapter, u8 rx_cnt)
670{
671	/* 83xx adapter does not have max_sds_rings intialized in probe */
672	if (adapter->max_sds_rings)
673		adapter->drv_sds_rings = qlcnic_max_rings(adapter, rx_cnt,
674							  QLCNIC_RX_QUEUE);
675	else
676		adapter->drv_sds_rings = rx_cnt;
677}
678
679int qlcnic_setup_tss_rss_intr(struct qlcnic_adapter *adapter)
680{
681	struct pci_dev *pdev = adapter->pdev;
682	int num_msix = 0, err = 0, vector;
683
684	adapter->flags &= ~QLCNIC_TSS_RSS;
685
686	if (adapter->drv_tss_rings > 0)
687		num_msix += adapter->drv_tss_rings;
688	else
689		num_msix += adapter->drv_tx_rings;
690
691	if (adapter->drv_rss_rings > 0)
692		num_msix += adapter->drv_rss_rings;
693	else
694		num_msix += adapter->drv_sds_rings;
695
696	if (qlcnic_83xx_check(adapter))
697		num_msix += 1;
698
699	if (!adapter->msix_entries) {
700		adapter->msix_entries = kcalloc(num_msix,
701						sizeof(struct msix_entry),
702						GFP_KERNEL);
703		if (!adapter->msix_entries)
704			return -ENOMEM;
705	}
706
707	for (vector = 0; vector < num_msix; vector++)
708		adapter->msix_entries[vector].entry = vector;
709
710restore:
711	err = pci_enable_msix_exact(pdev, adapter->msix_entries, num_msix);
712	if (err == -ENOSPC) {
713		if (!adapter->drv_tss_rings && !adapter->drv_rss_rings)
714			return err;
715
716		netdev_info(adapter->netdev,
717			    "Unable to allocate %d MSI-X vectors, Available vectors %d\n",
718			    num_msix, err);
719
720		num_msix = adapter->drv_tx_rings + adapter->drv_sds_rings;
721
722		/* Set rings to 0 so we can restore original TSS/RSS count */
723		adapter->drv_tss_rings = 0;
724		adapter->drv_rss_rings = 0;
725
726		if (qlcnic_83xx_check(adapter))
727			num_msix += 1;
728
729		netdev_info(adapter->netdev,
730			    "Restoring %d Tx, %d SDS rings for total %d vectors.\n",
731			    adapter->drv_tx_rings, adapter->drv_sds_rings,
732			    num_msix);
733
734		goto restore;
735	} else if (err < 0) {
736		return err;
737	}
738
739	adapter->ahw->num_msix = num_msix;
740	if (adapter->drv_tss_rings > 0)
741		adapter->drv_tx_rings = adapter->drv_tss_rings;
742
743	if (adapter->drv_rss_rings > 0)
744		adapter->drv_sds_rings = adapter->drv_rss_rings;
745
746	return 0;
747}
748
749int qlcnic_enable_msix(struct qlcnic_adapter *adapter, u32 num_msix)
750{
751	struct pci_dev *pdev = adapter->pdev;
752	int err, vector;
753
754	if (!adapter->msix_entries) {
755		adapter->msix_entries = kcalloc(num_msix,
756						sizeof(struct msix_entry),
757						GFP_KERNEL);
758		if (!adapter->msix_entries)
759			return -ENOMEM;
760	}
761
762	adapter->flags &= ~(QLCNIC_MSI_ENABLED | QLCNIC_MSIX_ENABLED);
763
764	if (adapter->ahw->msix_supported) {
765enable_msix:
766		for (vector = 0; vector < num_msix; vector++)
767			adapter->msix_entries[vector].entry = vector;
768
769		err = pci_enable_msix_range(pdev,
770					    adapter->msix_entries, 1, num_msix);
771
772		if (err == num_msix) {
773			adapter->flags |= QLCNIC_MSIX_ENABLED;
774			adapter->ahw->num_msix = num_msix;
775			dev_info(&pdev->dev, "using msi-x interrupts\n");
776			return 0;
777		} else if (err > 0) {
778			pci_disable_msix(pdev);
779
780			dev_info(&pdev->dev,
781				 "Unable to allocate %d MSI-X vectors, Available vectors %d\n",
782				 num_msix, err);
783
784			if (qlcnic_82xx_check(adapter)) {
785				num_msix = rounddown_pow_of_two(err);
786				if (err < QLCNIC_82XX_MINIMUM_VECTOR)
787					return -ENOSPC;
788			} else {
789				num_msix = rounddown_pow_of_two(err - 1);
790				num_msix += 1;
791				if (err < QLCNIC_83XX_MINIMUM_VECTOR)
792					return -ENOSPC;
793			}
794
795			if (qlcnic_82xx_check(adapter) &&
796			    !qlcnic_check_multi_tx(adapter)) {
797				adapter->drv_sds_rings = num_msix;
798				adapter->drv_tx_rings = QLCNIC_SINGLE_RING;
799			} else {
800				/* Distribute vectors equally */
801				adapter->drv_tx_rings = num_msix / 2;
802				adapter->drv_sds_rings = adapter->drv_tx_rings;
803			}
804
805			if (num_msix) {
806				dev_info(&pdev->dev,
807					 "Trying to allocate %d MSI-X interrupt vectors\n",
808					 num_msix);
809				goto enable_msix;
810			}
811		} else {
812			dev_info(&pdev->dev,
813				 "Unable to allocate %d MSI-X vectors, err=%d\n",
814				 num_msix, err);
815			return err;
816		}
817	}
818
819	return -EIO;
820}
821
822static int qlcnic_82xx_calculate_msix_vector(struct qlcnic_adapter *adapter)
823{
824	int num_msix;
825
826	num_msix = adapter->drv_sds_rings;
827
828	if (qlcnic_check_multi_tx(adapter))
829		num_msix += adapter->drv_tx_rings;
830	else
831		num_msix += QLCNIC_SINGLE_RING;
832
833	return num_msix;
834}
835
836static int qlcnic_enable_msi_legacy(struct qlcnic_adapter *adapter)
837{
838	int err = 0;
839	u32 offset, mask_reg;
840	const struct qlcnic_legacy_intr_set *legacy_intrp;
841	struct qlcnic_hardware_context *ahw = adapter->ahw;
842	struct pci_dev *pdev = adapter->pdev;
843
844	if (qlcnic_use_msi && !pci_enable_msi(pdev)) {
845		adapter->flags |= QLCNIC_MSI_ENABLED;
846		offset = msi_tgt_status[adapter->ahw->pci_func];
847		adapter->tgt_status_reg = qlcnic_get_ioaddr(adapter->ahw,
848							    offset);
849		dev_info(&pdev->dev, "using msi interrupts\n");
850		adapter->msix_entries[0].vector = pdev->irq;
851		return err;
852	}
853
854	if (qlcnic_use_msi || qlcnic_use_msi_x)
855		return -EOPNOTSUPP;
856
857	legacy_intrp = &legacy_intr[adapter->ahw->pci_func];
858	adapter->ahw->int_vec_bit = legacy_intrp->int_vec_bit;
859	offset = legacy_intrp->tgt_status_reg;
860	adapter->tgt_status_reg = qlcnic_get_ioaddr(ahw, offset);
861	mask_reg = legacy_intrp->tgt_mask_reg;
862	adapter->tgt_mask_reg = qlcnic_get_ioaddr(ahw, mask_reg);
863	adapter->isr_int_vec = qlcnic_get_ioaddr(ahw, ISR_INT_VECTOR);
864	adapter->crb_int_state_reg = qlcnic_get_ioaddr(ahw, ISR_INT_STATE_REG);
865	dev_info(&pdev->dev, "using legacy interrupts\n");
866	adapter->msix_entries[0].vector = pdev->irq;
867	return err;
868}
869
870static int qlcnic_82xx_setup_intr(struct qlcnic_adapter *adapter)
871{
872	int num_msix, err = 0;
873
874	if (adapter->flags & QLCNIC_TSS_RSS) {
875		err = qlcnic_setup_tss_rss_intr(adapter);
876		if (err < 0)
877			return err;
878		num_msix = adapter->ahw->num_msix;
879	} else {
880		num_msix = qlcnic_82xx_calculate_msix_vector(adapter);
881
882		err = qlcnic_enable_msix(adapter, num_msix);
883		if (err == -ENOMEM)
884			return err;
885
886		if (!(adapter->flags & QLCNIC_MSIX_ENABLED)) {
887			qlcnic_disable_multi_tx(adapter);
888			adapter->drv_sds_rings = QLCNIC_SINGLE_RING;
889
890			err = qlcnic_enable_msi_legacy(adapter);
891			if (err)
892				return err;
893		}
894	}
895
896	return 0;
897}
898
899int qlcnic_82xx_mq_intrpt(struct qlcnic_adapter *adapter, int op_type)
900{
901	struct qlcnic_hardware_context *ahw = adapter->ahw;
902	int err, i;
903
904	if (qlcnic_check_multi_tx(adapter) &&
905	    !ahw->diag_test &&
906	    (adapter->flags & QLCNIC_MSIX_ENABLED)) {
907		ahw->intr_tbl = vzalloc(ahw->num_msix *
908					sizeof(struct qlcnic_intrpt_config));
909		if (!ahw->intr_tbl)
910			return -ENOMEM;
911
912		for (i = 0; i < ahw->num_msix; i++) {
913			ahw->intr_tbl[i].type = QLCNIC_INTRPT_MSIX;
914			ahw->intr_tbl[i].id = i;
915			ahw->intr_tbl[i].src = 0;
916		}
917
918		err = qlcnic_82xx_config_intrpt(adapter, 1);
919		if (err)
920			dev_err(&adapter->pdev->dev,
921				"Failed to configure Interrupt for %d vector\n",
922				ahw->num_msix);
923		return err;
924	}
925
926	return 0;
927}
928
929void qlcnic_teardown_intr(struct qlcnic_adapter *adapter)
930{
931	if (adapter->flags & QLCNIC_MSIX_ENABLED)
932		pci_disable_msix(adapter->pdev);
933	if (adapter->flags & QLCNIC_MSI_ENABLED)
934		pci_disable_msi(adapter->pdev);
935
936	kfree(adapter->msix_entries);
937	adapter->msix_entries = NULL;
938
939	if (adapter->ahw->intr_tbl) {
940		vfree(adapter->ahw->intr_tbl);
941		adapter->ahw->intr_tbl = NULL;
942	}
943}
944
945static void qlcnic_cleanup_pci_map(struct qlcnic_hardware_context *ahw)
946{
947	if (ahw->pci_base0 != NULL)
948		iounmap(ahw->pci_base0);
949}
950
951static int qlcnic_get_act_pci_func(struct qlcnic_adapter *adapter)
952{
953	struct qlcnic_hardware_context *ahw = adapter->ahw;
954	struct qlcnic_pci_info *pci_info;
955	int ret;
956
957	if (!(adapter->flags & QLCNIC_ESWITCH_ENABLED)) {
958		switch (ahw->port_type) {
959		case QLCNIC_GBE:
960			ahw->total_nic_func = QLCNIC_NIU_MAX_GBE_PORTS;
961			break;
962		case QLCNIC_XGBE:
963			ahw->total_nic_func = QLCNIC_NIU_MAX_XG_PORTS;
964			break;
965		}
966		return 0;
967	}
968
969	if (ahw->op_mode == QLCNIC_MGMT_FUNC)
970		return 0;
971
972	pci_info = kcalloc(ahw->max_vnic_func, sizeof(*pci_info), GFP_KERNEL);
973	if (!pci_info)
974		return -ENOMEM;
975
976	ret = qlcnic_get_pci_info(adapter, pci_info);
977	kfree(pci_info);
978	return ret;
979}
980
981static bool qlcnic_port_eswitch_cfg_capability(struct qlcnic_adapter *adapter)
982{
983	bool ret = false;
984
985	if (qlcnic_84xx_check(adapter)) {
986		ret = true;
987	} else if (qlcnic_83xx_check(adapter)) {
988		if (adapter->ahw->extra_capability[0] &
989		    QLCNIC_FW_CAPABILITY_2_PER_PORT_ESWITCH_CFG)
990			ret = true;
991		else
992			ret = false;
993	}
994
995	return ret;
996}
997
998int qlcnic_init_pci_info(struct qlcnic_adapter *adapter)
999{
1000	struct qlcnic_hardware_context *ahw = adapter->ahw;
1001	struct qlcnic_pci_info *pci_info;
1002	int i, id = 0, ret = 0, j = 0;
1003	u16 act_pci_func;
1004	u8 pfn;
1005
1006	pci_info = kcalloc(ahw->max_vnic_func, sizeof(*pci_info), GFP_KERNEL);
1007	if (!pci_info)
1008		return -ENOMEM;
1009
1010	ret = qlcnic_get_pci_info(adapter, pci_info);
1011	if (ret)
1012		goto err_pci_info;
1013
1014	act_pci_func = ahw->total_nic_func;
1015
1016	adapter->npars = kzalloc(sizeof(struct qlcnic_npar_info) *
1017				 act_pci_func, GFP_KERNEL);
1018	if (!adapter->npars) {
1019		ret = -ENOMEM;
1020		goto err_pci_info;
1021	}
1022
1023	adapter->eswitch = kzalloc(sizeof(struct qlcnic_eswitch) *
1024				QLCNIC_NIU_MAX_XG_PORTS, GFP_KERNEL);
1025	if (!adapter->eswitch) {
1026		ret = -ENOMEM;
1027		goto err_npars;
1028	}
1029
1030	for (i = 0; i < ahw->max_vnic_func; i++) {
1031		pfn = pci_info[i].id;
1032
1033		if (pfn >= ahw->max_vnic_func) {
1034			ret = QL_STATUS_INVALID_PARAM;
1035			dev_err(&adapter->pdev->dev, "%s: Invalid function 0x%x, max 0x%x\n",
1036				__func__, pfn, ahw->max_vnic_func);
1037			goto err_eswitch;
1038		}
1039
1040		if (!pci_info[i].active ||
1041		    (pci_info[i].type != QLCNIC_TYPE_NIC))
1042			continue;
1043
1044		if (qlcnic_port_eswitch_cfg_capability(adapter)) {
1045			if (!qlcnic_83xx_set_port_eswitch_status(adapter, pfn,
1046								 &id))
1047				adapter->npars[j].eswitch_status = true;
1048			else
1049				continue;
1050		} else {
1051			adapter->npars[j].eswitch_status = true;
1052		}
1053
1054		adapter->npars[j].pci_func = pfn;
1055		adapter->npars[j].active = (u8)pci_info[i].active;
1056		adapter->npars[j].type = (u8)pci_info[i].type;
1057		adapter->npars[j].phy_port = (u8)pci_info[i].default_port;
1058		adapter->npars[j].min_bw = pci_info[i].tx_min_bw;
1059		adapter->npars[j].max_bw = pci_info[i].tx_max_bw;
1060
1061		memcpy(&adapter->npars[j].mac, &pci_info[i].mac, ETH_ALEN);
1062		j++;
1063	}
1064
1065	/* Update eSwitch status for adapters without per port eSwitch
1066	 * configuration capability
1067	 */
1068	if (!qlcnic_port_eswitch_cfg_capability(adapter)) {
1069		for (i = 0; i < QLCNIC_NIU_MAX_XG_PORTS; i++)
1070			adapter->eswitch[i].flags |= QLCNIC_SWITCH_ENABLE;
1071	}
1072
1073	kfree(pci_info);
1074	return 0;
1075
1076err_eswitch:
1077	kfree(adapter->eswitch);
1078	adapter->eswitch = NULL;
1079err_npars:
1080	kfree(adapter->npars);
1081	adapter->npars = NULL;
1082err_pci_info:
1083	kfree(pci_info);
1084
1085	return ret;
1086}
1087
1088static int
1089qlcnic_set_function_modes(struct qlcnic_adapter *adapter)
1090{
1091	u8 id;
1092	int ret;
1093	u32 data = QLCNIC_MGMT_FUNC;
1094	struct qlcnic_hardware_context *ahw = adapter->ahw;
1095
1096	ret = qlcnic_api_lock(adapter);
1097	if (ret)
1098		goto err_lock;
1099
1100	id = ahw->pci_func;
1101	data = QLC_SHARED_REG_RD32(adapter, QLCNIC_DRV_OP_MODE);
1102	data = (data & ~QLC_DEV_SET_DRV(0xf, id)) |
1103	       QLC_DEV_SET_DRV(QLCNIC_MGMT_FUNC, id);
1104	QLC_SHARED_REG_WR32(adapter, QLCNIC_DRV_OP_MODE, data);
1105	qlcnic_api_unlock(adapter);
1106err_lock:
1107	return ret;
1108}
1109
1110static void qlcnic_check_vf(struct qlcnic_adapter *adapter,
1111			    const struct pci_device_id *ent)
1112{
1113	u32 op_mode, priv_level;
1114
1115	/* Determine FW API version */
1116	adapter->ahw->fw_hal_version = QLC_SHARED_REG_RD32(adapter,
1117							   QLCNIC_FW_API);
1118
1119	/* Find PCI function number */
1120	qlcnic_get_func_no(adapter);
1121
1122	/* Determine function privilege level */
1123	op_mode = QLC_SHARED_REG_RD32(adapter, QLCNIC_DRV_OP_MODE);
1124	if (op_mode == QLC_DEV_DRV_DEFAULT)
1125		priv_level = QLCNIC_MGMT_FUNC;
1126	else
1127		priv_level = QLC_DEV_GET_DRV(op_mode, adapter->ahw->pci_func);
1128
1129	if (priv_level == QLCNIC_NON_PRIV_FUNC) {
1130		adapter->ahw->op_mode = QLCNIC_NON_PRIV_FUNC;
1131		dev_info(&adapter->pdev->dev,
1132			"HAL Version: %d Non Privileged function\n",
1133			 adapter->ahw->fw_hal_version);
1134		adapter->nic_ops = &qlcnic_vf_ops;
1135	} else
1136		adapter->nic_ops = &qlcnic_ops;
1137}
1138
1139#define QLCNIC_82XX_BAR0_LENGTH 0x00200000UL
1140#define QLCNIC_83XX_BAR0_LENGTH 0x4000
1141static void qlcnic_get_bar_length(u32 dev_id, ulong *bar)
1142{
1143	switch (dev_id) {
1144	case PCI_DEVICE_ID_QLOGIC_QLE824X:
1145		*bar = QLCNIC_82XX_BAR0_LENGTH;
1146		break;
1147	case PCI_DEVICE_ID_QLOGIC_QLE834X:
1148	case PCI_DEVICE_ID_QLOGIC_QLE8830:
1149	case PCI_DEVICE_ID_QLOGIC_QLE844X:
1150	case PCI_DEVICE_ID_QLOGIC_VF_QLE834X:
1151	case PCI_DEVICE_ID_QLOGIC_VF_QLE844X:
1152		*bar = QLCNIC_83XX_BAR0_LENGTH;
1153		break;
1154	default:
1155		*bar = 0;
1156	}
1157}
1158
1159static int qlcnic_setup_pci_map(struct pci_dev *pdev,
1160				struct qlcnic_hardware_context *ahw)
1161{
1162	u32 offset;
1163	void __iomem *mem_ptr0 = NULL;
1164	unsigned long mem_len, pci_len0 = 0, bar0_len;
1165
1166	/* remap phys address */
1167	mem_len = pci_resource_len(pdev, 0);
1168
1169	qlcnic_get_bar_length(pdev->device, &bar0_len);
1170	if (mem_len >= bar0_len) {
1171
1172		mem_ptr0 = pci_ioremap_bar(pdev, 0);
1173		if (mem_ptr0 == NULL) {
1174			dev_err(&pdev->dev, "failed to map PCI bar 0\n");
1175			return -EIO;
1176		}
1177		pci_len0 = mem_len;
1178	} else {
1179		return -EIO;
1180	}
1181
1182	dev_info(&pdev->dev, "%dKB memory map\n", (int)(mem_len >> 10));
1183
1184	ahw->pci_base0 = mem_ptr0;
1185	ahw->pci_len0 = pci_len0;
1186	offset = QLCNIC_PCIX_PS_REG(PCIX_OCM_WINDOW_REG(ahw->pci_func));
1187	qlcnic_get_ioaddr(ahw, offset);
1188
1189	return 0;
1190}
1191
1192static bool qlcnic_validate_subsystem_id(struct qlcnic_adapter *adapter,
1193					 int index)
1194{
1195	struct pci_dev *pdev = adapter->pdev;
1196	unsigned short subsystem_vendor;
1197	bool ret = true;
1198
1199	subsystem_vendor = pdev->subsystem_vendor;
1200
1201	if (pdev->device == PCI_DEVICE_ID_QLOGIC_QLE824X ||
1202	    pdev->device == PCI_DEVICE_ID_QLOGIC_QLE834X) {
1203		if (qlcnic_boards[index].sub_vendor == subsystem_vendor &&
1204		    qlcnic_boards[index].sub_device == pdev->subsystem_device)
1205			ret = true;
1206		else
1207			ret = false;
1208	}
1209
1210	return ret;
1211}
1212
1213static void qlcnic_get_board_name(struct qlcnic_adapter *adapter, char *name)
1214{
1215	struct pci_dev *pdev = adapter->pdev;
1216	int i, found = 0;
1217
1218	for (i = 0; i < NUM_SUPPORTED_BOARDS; ++i) {
1219		if (qlcnic_boards[i].vendor == pdev->vendor &&
1220		    qlcnic_boards[i].device == pdev->device &&
1221		    qlcnic_validate_subsystem_id(adapter, i)) {
1222			found = 1;
1223			break;
1224		}
1225	}
1226
1227	if (!found)
1228		sprintf(name, "%pM Gigabit Ethernet", adapter->mac_addr);
1229	else
1230		sprintf(name, "%pM: %s" , adapter->mac_addr,
1231			qlcnic_boards[i].short_name);
1232}
1233
1234static void
1235qlcnic_check_options(struct qlcnic_adapter *adapter)
1236{
1237	int err;
1238	u32 fw_major, fw_minor, fw_build, prev_fw_version;
1239	struct pci_dev *pdev = adapter->pdev;
1240	struct qlcnic_hardware_context *ahw = adapter->ahw;
1241	struct qlcnic_fw_dump *fw_dump = &ahw->fw_dump;
1242
1243	prev_fw_version = adapter->fw_version;
1244
1245	fw_major = QLC_SHARED_REG_RD32(adapter, QLCNIC_FW_VERSION_MAJOR);
1246	fw_minor = QLC_SHARED_REG_RD32(adapter, QLCNIC_FW_VERSION_MINOR);
1247	fw_build = QLC_SHARED_REG_RD32(adapter, QLCNIC_FW_VERSION_SUB);
1248
1249	adapter->fw_version = QLCNIC_VERSION_CODE(fw_major, fw_minor, fw_build);
1250
1251	err = qlcnic_get_board_info(adapter);
1252	if (err) {
1253		dev_err(&pdev->dev, "Error getting board config info.\n");
1254		return;
1255	}
1256	if (ahw->op_mode != QLCNIC_NON_PRIV_FUNC) {
1257		if (fw_dump->tmpl_hdr == NULL ||
1258				adapter->fw_version > prev_fw_version) {
1259			vfree(fw_dump->tmpl_hdr);
1260			if (!qlcnic_fw_cmd_get_minidump_temp(adapter))
1261				dev_info(&pdev->dev,
1262					"Supports FW dump capability\n");
1263		}
1264	}
1265
1266	dev_info(&pdev->dev, "Driver v%s, firmware v%d.%d.%d\n",
1267		 QLCNIC_LINUX_VERSIONID, fw_major, fw_minor, fw_build);
1268
1269	if (adapter->ahw->port_type == QLCNIC_XGBE) {
1270		if (adapter->flags & QLCNIC_ESWITCH_ENABLED) {
1271			adapter->num_rxd = DEFAULT_RCV_DESCRIPTORS_VF;
1272			adapter->max_rxd = MAX_RCV_DESCRIPTORS_VF;
1273		} else {
1274			adapter->num_rxd = DEFAULT_RCV_DESCRIPTORS_10G;
1275			adapter->max_rxd = MAX_RCV_DESCRIPTORS_10G;
1276		}
1277
1278		adapter->num_jumbo_rxd = MAX_JUMBO_RCV_DESCRIPTORS_10G;
1279		adapter->max_jumbo_rxd = MAX_JUMBO_RCV_DESCRIPTORS_10G;
1280
1281	} else if (adapter->ahw->port_type == QLCNIC_GBE) {
1282		adapter->num_rxd = DEFAULT_RCV_DESCRIPTORS_1G;
1283		adapter->num_jumbo_rxd = MAX_JUMBO_RCV_DESCRIPTORS_1G;
1284		adapter->max_jumbo_rxd = MAX_JUMBO_RCV_DESCRIPTORS_1G;
1285		adapter->max_rxd = MAX_RCV_DESCRIPTORS_1G;
1286	}
1287
1288	adapter->ahw->msix_supported = !!qlcnic_use_msi_x;
1289
1290	adapter->num_txd = MAX_CMD_DESCRIPTORS;
1291
1292	adapter->max_rds_rings = MAX_RDS_RINGS;
1293}
1294
1295static int
1296qlcnic_initialize_nic(struct qlcnic_adapter *adapter)
1297{
1298	struct qlcnic_info nic_info;
1299	int err = 0;
1300
1301	memset(&nic_info, 0, sizeof(struct qlcnic_info));
1302	err = qlcnic_get_nic_info(adapter, &nic_info, adapter->ahw->pci_func);
1303	if (err)
1304		return err;
1305
1306	adapter->ahw->physical_port = (u8)nic_info.phys_port;
1307	adapter->ahw->switch_mode = nic_info.switch_mode;
1308	adapter->ahw->max_tx_ques = nic_info.max_tx_ques;
1309	adapter->ahw->max_rx_ques = nic_info.max_rx_ques;
1310	adapter->ahw->capabilities = nic_info.capabilities;
1311
1312	if (adapter->ahw->capabilities & QLCNIC_FW_CAPABILITY_MORE_CAPS) {
1313		u32 temp;
1314		temp = QLCRD32(adapter, CRB_FW_CAPABILITIES_2, &err);
1315		if (err == -EIO)
1316			return err;
1317		adapter->ahw->extra_capability[0] = temp;
1318	} else {
1319		adapter->ahw->extra_capability[0] = 0;
1320	}
1321
1322	adapter->ahw->max_mac_filters = nic_info.max_mac_filters;
1323	adapter->ahw->max_mtu = nic_info.max_mtu;
1324
1325	if (adapter->ahw->capabilities & BIT_6) {
1326		adapter->flags |= QLCNIC_ESWITCH_ENABLED;
1327		adapter->ahw->nic_mode = QLCNIC_VNIC_MODE;
1328		adapter->max_tx_rings = QLCNIC_MAX_HW_VNIC_TX_RINGS;
1329		adapter->max_sds_rings = QLCNIC_MAX_VNIC_SDS_RINGS;
1330
1331		dev_info(&adapter->pdev->dev, "vNIC mode enabled.\n");
1332	} else {
1333		adapter->ahw->nic_mode = QLCNIC_DEFAULT_MODE;
1334		adapter->max_tx_rings = QLCNIC_MAX_HW_TX_RINGS;
1335		adapter->max_sds_rings = QLCNIC_MAX_SDS_RINGS;
1336		adapter->flags &= ~QLCNIC_ESWITCH_ENABLED;
1337	}
1338
1339	return err;
1340}
1341
1342void qlcnic_set_vlan_config(struct qlcnic_adapter *adapter,
1343			    struct qlcnic_esw_func_cfg *esw_cfg)
1344{
1345	if (esw_cfg->discard_tagged)
1346		adapter->flags &= ~QLCNIC_TAGGING_ENABLED;
1347	else
1348		adapter->flags |= QLCNIC_TAGGING_ENABLED;
1349
1350	if (esw_cfg->vlan_id) {
1351		adapter->rx_pvid = esw_cfg->vlan_id;
1352		adapter->tx_pvid = esw_cfg->vlan_id;
1353	} else {
1354		adapter->rx_pvid = 0;
1355		adapter->tx_pvid = 0;
1356	}
1357}
1358
1359static int
1360qlcnic_vlan_rx_add(struct net_device *netdev, __be16 proto, u16 vid)
1361{
1362	struct qlcnic_adapter *adapter = netdev_priv(netdev);
1363	int err;
1364
1365	if (qlcnic_sriov_vf_check(adapter)) {
1366		err = qlcnic_sriov_cfg_vf_guest_vlan(adapter, vid, 1);
1367		if (err) {
1368			netdev_err(netdev,
1369				   "Cannot add VLAN filter for VLAN id %d, err=%d",
1370				   vid, err);
1371			return err;
1372		}
1373	}
1374
1375	set_bit(vid, adapter->vlans);
1376	return 0;
1377}
1378
1379static int
1380qlcnic_vlan_rx_del(struct net_device *netdev, __be16 proto, u16 vid)
1381{
1382	struct qlcnic_adapter *adapter = netdev_priv(netdev);
1383	int err;
1384
1385	if (qlcnic_sriov_vf_check(adapter)) {
1386		err = qlcnic_sriov_cfg_vf_guest_vlan(adapter, vid, 0);
1387		if (err) {
1388			netdev_err(netdev,
1389				   "Cannot delete VLAN filter for VLAN id %d, err=%d",
1390				   vid, err);
1391			return err;
1392		}
1393	}
1394
1395	qlcnic_restore_indev_addr(netdev, NETDEV_DOWN);
1396	clear_bit(vid, adapter->vlans);
1397	return 0;
1398}
1399
1400void qlcnic_set_eswitch_port_features(struct qlcnic_adapter *adapter,
1401				      struct qlcnic_esw_func_cfg *esw_cfg)
1402{
1403	adapter->flags &= ~(QLCNIC_MACSPOOF | QLCNIC_MAC_OVERRIDE_DISABLED |
1404				QLCNIC_PROMISC_DISABLED);
1405
1406	if (esw_cfg->mac_anti_spoof)
1407		adapter->flags |= QLCNIC_MACSPOOF;
1408
1409	if (!esw_cfg->mac_override)
1410		adapter->flags |= QLCNIC_MAC_OVERRIDE_DISABLED;
1411
1412	if (!esw_cfg->promisc_mode)
1413		adapter->flags |= QLCNIC_PROMISC_DISABLED;
1414}
1415
1416int qlcnic_set_eswitch_port_config(struct qlcnic_adapter *adapter)
1417{
1418	struct qlcnic_esw_func_cfg esw_cfg;
1419
1420	if (!(adapter->flags & QLCNIC_ESWITCH_ENABLED))
1421		return 0;
1422
1423	esw_cfg.pci_func = adapter->ahw->pci_func;
1424	if (qlcnic_get_eswitch_port_config(adapter, &esw_cfg))
1425			return -EIO;
1426	qlcnic_set_vlan_config(adapter, &esw_cfg);
1427	qlcnic_set_eswitch_port_features(adapter, &esw_cfg);
1428	qlcnic_set_netdev_features(adapter, &esw_cfg);
1429
1430	return 0;
1431}
1432
1433void qlcnic_set_netdev_features(struct qlcnic_adapter *adapter,
1434				struct qlcnic_esw_func_cfg *esw_cfg)
1435{
1436	struct net_device *netdev = adapter->netdev;
1437
1438	if (qlcnic_83xx_check(adapter))
1439		return;
1440
1441	adapter->offload_flags = esw_cfg->offload_flags;
1442	adapter->flags |= QLCNIC_APP_CHANGED_FLAGS;
1443	netdev_update_features(netdev);
1444	adapter->flags &= ~QLCNIC_APP_CHANGED_FLAGS;
1445}
1446
1447static int
1448qlcnic_check_eswitch_mode(struct qlcnic_adapter *adapter)
1449{
1450	u32 op_mode, priv_level;
1451	int err = 0;
1452
1453	err = qlcnic_initialize_nic(adapter);
1454	if (err)
1455		return err;
1456
1457	if (adapter->flags & QLCNIC_ADAPTER_INITIALIZED)
1458		return 0;
1459
1460	op_mode = QLC_SHARED_REG_RD32(adapter, QLCNIC_DRV_OP_MODE);
1461	priv_level = QLC_DEV_GET_DRV(op_mode, adapter->ahw->pci_func);
1462
1463	if (op_mode == QLC_DEV_DRV_DEFAULT)
1464		priv_level = QLCNIC_MGMT_FUNC;
1465	else
1466		priv_level = QLC_DEV_GET_DRV(op_mode, adapter->ahw->pci_func);
1467
1468	if (adapter->flags & QLCNIC_ESWITCH_ENABLED) {
1469		if (priv_level == QLCNIC_MGMT_FUNC) {
1470			adapter->ahw->op_mode = QLCNIC_MGMT_FUNC;
1471			err = qlcnic_init_pci_info(adapter);
1472			if (err)
1473				return err;
1474			/* Set privilege level for other functions */
1475			qlcnic_set_function_modes(adapter);
1476			dev_info(&adapter->pdev->dev,
1477				"HAL Version: %d, Management function\n",
1478				 adapter->ahw->fw_hal_version);
1479		} else if (priv_level == QLCNIC_PRIV_FUNC) {
1480			adapter->ahw->op_mode = QLCNIC_PRIV_FUNC;
1481			dev_info(&adapter->pdev->dev,
1482				"HAL Version: %d, Privileged function\n",
1483				 adapter->ahw->fw_hal_version);
1484		}
1485	} else {
1486		adapter->ahw->nic_mode = QLCNIC_DEFAULT_MODE;
1487	}
1488
1489	adapter->flags |= QLCNIC_ADAPTER_INITIALIZED;
1490
1491	return err;
1492}
1493
1494int qlcnic_set_default_offload_settings(struct qlcnic_adapter *adapter)
1495{
1496	struct qlcnic_esw_func_cfg esw_cfg;
1497	struct qlcnic_npar_info *npar;
1498	u8 i;
1499
1500	if (adapter->need_fw_reset)
1501		return 0;
1502
1503	for (i = 0; i < adapter->ahw->total_nic_func; i++) {
1504		if (!adapter->npars[i].eswitch_status)
1505			continue;
1506
1507		memset(&esw_cfg, 0, sizeof(struct qlcnic_esw_func_cfg));
1508		esw_cfg.pci_func = adapter->npars[i].pci_func;
1509		esw_cfg.mac_override = BIT_0;
1510		esw_cfg.promisc_mode = BIT_0;
1511		if (qlcnic_82xx_check(adapter)) {
1512			esw_cfg.offload_flags = BIT_0;
1513			if (QLCNIC_IS_TSO_CAPABLE(adapter))
1514				esw_cfg.offload_flags |= (BIT_1 | BIT_2);
1515		}
1516		if (qlcnic_config_switch_port(adapter, &esw_cfg))
1517			return -EIO;
1518		npar = &adapter->npars[i];
1519		npar->pvid = esw_cfg.vlan_id;
1520		npar->mac_override = esw_cfg.mac_override;
1521		npar->mac_anti_spoof = esw_cfg.mac_anti_spoof;
1522		npar->discard_tagged = esw_cfg.discard_tagged;
1523		npar->promisc_mode = esw_cfg.promisc_mode;
1524		npar->offload_flags = esw_cfg.offload_flags;
1525	}
1526
1527	return 0;
1528}
1529
1530
1531static int
1532qlcnic_reset_eswitch_config(struct qlcnic_adapter *adapter,
1533			struct qlcnic_npar_info *npar, int pci_func)
1534{
1535	struct qlcnic_esw_func_cfg esw_cfg;
1536	esw_cfg.op_mode = QLCNIC_PORT_DEFAULTS;
1537	esw_cfg.pci_func = pci_func;
1538	esw_cfg.vlan_id = npar->pvid;
1539	esw_cfg.mac_override = npar->mac_override;
1540	esw_cfg.discard_tagged = npar->discard_tagged;
1541	esw_cfg.mac_anti_spoof = npar->mac_anti_spoof;
1542	esw_cfg.offload_flags = npar->offload_flags;
1543	esw_cfg.promisc_mode = npar->promisc_mode;
1544	if (qlcnic_config_switch_port(adapter, &esw_cfg))
1545		return -EIO;
1546
1547	esw_cfg.op_mode = QLCNIC_ADD_VLAN;
1548	if (qlcnic_config_switch_port(adapter, &esw_cfg))
1549		return -EIO;
1550
1551	return 0;
1552}
1553
1554int qlcnic_reset_npar_config(struct qlcnic_adapter *adapter)
1555{
1556	int i, err;
1557	struct qlcnic_npar_info *npar;
1558	struct qlcnic_info nic_info;
1559	u8 pci_func;
1560
1561	if (qlcnic_82xx_check(adapter))
1562		if (!adapter->need_fw_reset)
1563			return 0;
1564
1565	/* Set the NPAR config data after FW reset */
1566	for (i = 0; i < adapter->ahw->total_nic_func; i++) {
1567		npar = &adapter->npars[i];
1568		pci_func = npar->pci_func;
1569		if (!adapter->npars[i].eswitch_status)
1570			continue;
1571
1572		memset(&nic_info, 0, sizeof(struct qlcnic_info));
1573		err = qlcnic_get_nic_info(adapter, &nic_info, pci_func);
1574		if (err)
1575			return err;
1576		nic_info.min_tx_bw = npar->min_bw;
1577		nic_info.max_tx_bw = npar->max_bw;
1578		err = qlcnic_set_nic_info(adapter, &nic_info);
1579		if (err)
1580			return err;
1581
1582		if (npar->enable_pm) {
1583			err = qlcnic_config_port_mirroring(adapter,
1584							   npar->dest_npar, 1,
1585							   pci_func);
1586			if (err)
1587				return err;
1588		}
1589		err = qlcnic_reset_eswitch_config(adapter, npar, pci_func);
1590		if (err)
1591			return err;
1592	}
1593	return 0;
1594}
1595
1596static int qlcnic_check_npar_opertional(struct qlcnic_adapter *adapter)
1597{
1598	u8 npar_opt_timeo = QLCNIC_DEV_NPAR_OPER_TIMEO;
1599	u32 npar_state;
1600
1601	if (adapter->ahw->op_mode == QLCNIC_MGMT_FUNC)
1602		return 0;
1603
1604	npar_state = QLC_SHARED_REG_RD32(adapter,
1605					 QLCNIC_CRB_DEV_NPAR_STATE);
1606	while (npar_state != QLCNIC_DEV_NPAR_OPER && --npar_opt_timeo) {
1607		msleep(1000);
1608		npar_state = QLC_SHARED_REG_RD32(adapter,
1609						 QLCNIC_CRB_DEV_NPAR_STATE);
1610	}
1611	if (!npar_opt_timeo) {
1612		dev_err(&adapter->pdev->dev,
1613			"Waiting for NPAR state to operational timeout\n");
1614		return -EIO;
1615	}
1616	return 0;
1617}
1618
1619static int
1620qlcnic_set_mgmt_operations(struct qlcnic_adapter *adapter)
1621{
1622	int err;
1623
1624	if (!(adapter->flags & QLCNIC_ESWITCH_ENABLED) ||
1625	    adapter->ahw->op_mode != QLCNIC_MGMT_FUNC)
1626		return 0;
1627
1628	err = qlcnic_set_default_offload_settings(adapter);
1629	if (err)
1630		return err;
1631
1632	err = qlcnic_reset_npar_config(adapter);
1633	if (err)
1634		return err;
1635
1636	qlcnic_dev_set_npar_ready(adapter);
1637
1638	return err;
1639}
1640
1641static int qlcnic_82xx_start_firmware(struct qlcnic_adapter *adapter)
1642{
1643	int err;
1644
1645	err = qlcnic_can_start_firmware(adapter);
1646	if (err < 0)
1647		return err;
1648	else if (!err)
1649		goto check_fw_status;
1650
1651	if (qlcnic_load_fw_file)
1652		qlcnic_request_firmware(adapter);
1653	else {
1654		err = qlcnic_check_flash_fw_ver(adapter);
1655		if (err)
1656			goto err_out;
1657
1658		adapter->ahw->fw_type = QLCNIC_FLASH_ROMIMAGE;
1659	}
1660
1661	err = qlcnic_need_fw_reset(adapter);
1662	if (err == 0)
1663		goto check_fw_status;
1664
1665	err = qlcnic_pinit_from_rom(adapter);
1666	if (err)
1667		goto err_out;
1668
1669	err = qlcnic_load_firmware(adapter);
1670	if (err)
1671		goto err_out;
1672
1673	qlcnic_release_firmware(adapter);
1674	QLCWR32(adapter, CRB_DRIVER_VERSION, QLCNIC_DRIVER_VERSION);
1675
1676check_fw_status:
1677	err = qlcnic_check_fw_status(adapter);
1678	if (err)
1679		goto err_out;
1680
1681	QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DEV_STATE, QLCNIC_DEV_READY);
1682	qlcnic_idc_debug_info(adapter, 1);
1683	err = qlcnic_check_eswitch_mode(adapter);
1684	if (err) {
1685		dev_err(&adapter->pdev->dev,
1686			"Memory allocation failed for eswitch\n");
1687		goto err_out;
1688	}
1689	err = qlcnic_set_mgmt_operations(adapter);
1690	if (err)
1691		goto err_out;
1692
1693	qlcnic_check_options(adapter);
1694	adapter->need_fw_reset = 0;
1695
1696	qlcnic_release_firmware(adapter);
1697	return 0;
1698
1699err_out:
1700	QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DEV_STATE, QLCNIC_DEV_FAILED);
1701	dev_err(&adapter->pdev->dev, "Device state set to failed\n");
1702
1703	qlcnic_release_firmware(adapter);
1704	return err;
1705}
1706
1707static int
1708qlcnic_request_irq(struct qlcnic_adapter *adapter)
1709{
1710	irq_handler_t handler;
1711	struct qlcnic_host_sds_ring *sds_ring;
1712	struct qlcnic_host_tx_ring *tx_ring;
1713	int err, ring, num_sds_rings;
1714
1715	unsigned long flags = 0;
1716	struct net_device *netdev = adapter->netdev;
1717	struct qlcnic_recv_context *recv_ctx = adapter->recv_ctx;
1718
1719	if (adapter->ahw->diag_test == QLCNIC_INTERRUPT_TEST) {
1720		if (qlcnic_82xx_check(adapter))
1721			handler = qlcnic_tmp_intr;
1722		else
1723			handler = qlcnic_83xx_tmp_intr;
1724		if (!QLCNIC_IS_MSI_FAMILY(adapter))
1725			flags |= IRQF_SHARED;
1726
1727	} else {
1728		if (adapter->flags & QLCNIC_MSIX_ENABLED)
1729			handler = qlcnic_msix_intr;
1730		else if (adapter->flags & QLCNIC_MSI_ENABLED)
1731			handler = qlcnic_msi_intr;
1732		else {
1733			flags |= IRQF_SHARED;
1734			if (qlcnic_82xx_check(adapter))
1735				handler = qlcnic_intr;
1736			else
1737				handler = qlcnic_83xx_intr;
1738		}
1739	}
1740	adapter->irq = netdev->irq;
1741
1742	if (adapter->ahw->diag_test != QLCNIC_LOOPBACK_TEST) {
1743		if (qlcnic_82xx_check(adapter) ||
1744		    (qlcnic_83xx_check(adapter) &&
1745		     (adapter->flags & QLCNIC_MSIX_ENABLED))) {
1746			num_sds_rings = adapter->drv_sds_rings;
1747			for (ring = 0; ring < num_sds_rings; ring++) {
1748				sds_ring = &recv_ctx->sds_rings[ring];
1749				if (qlcnic_82xx_check(adapter) &&
1750				    !qlcnic_check_multi_tx(adapter) &&
1751				    (ring == (num_sds_rings - 1))) {
1752					if (!(adapter->flags &
1753					      QLCNIC_MSIX_ENABLED))
1754						snprintf(sds_ring->name,
1755							 sizeof(sds_ring->name),
1756							 "qlcnic");
1757					else
1758						snprintf(sds_ring->name,
1759							 sizeof(sds_ring->name),
1760							 "%s-tx-0-rx-%d",
1761							 netdev->name, ring);
1762				} else {
1763					snprintf(sds_ring->name,
1764						 sizeof(sds_ring->name),
1765						 "%s-rx-%d",
1766						 netdev->name, ring);
1767				}
1768				err = request_irq(sds_ring->irq, handler, flags,
1769						  sds_ring->name, sds_ring);
1770				if (err)
1771					return err;
1772			}
1773		}
1774		if ((qlcnic_82xx_check(adapter) &&
1775		     qlcnic_check_multi_tx(adapter)) ||
1776		    (qlcnic_83xx_check(adapter) &&
1777		     (adapter->flags & QLCNIC_MSIX_ENABLED) &&
1778		     !(adapter->flags & QLCNIC_TX_INTR_SHARED))) {
1779			handler = qlcnic_msix_tx_intr;
1780			for (ring = 0; ring < adapter->drv_tx_rings;
1781			     ring++) {
1782				tx_ring = &adapter->tx_ring[ring];
1783				snprintf(tx_ring->name, sizeof(tx_ring->name),
1784					 "%s-tx-%d", netdev->name, ring);
1785				err = request_irq(tx_ring->irq, handler, flags,
1786						  tx_ring->name, tx_ring);
1787				if (err)
1788					return err;
1789			}
1790		}
1791	}
1792	return 0;
1793}
1794
1795static void
1796qlcnic_free_irq(struct qlcnic_adapter *adapter)
1797{
1798	int ring;
1799	struct qlcnic_host_sds_ring *sds_ring;
1800	struct qlcnic_host_tx_ring *tx_ring;
1801
1802	struct qlcnic_recv_context *recv_ctx = adapter->recv_ctx;
1803
1804	if (adapter->ahw->diag_test != QLCNIC_LOOPBACK_TEST) {
1805		if (qlcnic_82xx_check(adapter) ||
1806		    (qlcnic_83xx_check(adapter) &&
1807		     (adapter->flags & QLCNIC_MSIX_ENABLED))) {
1808			for (ring = 0; ring < adapter->drv_sds_rings; ring++) {
1809				sds_ring = &recv_ctx->sds_rings[ring];
1810				free_irq(sds_ring->irq, sds_ring);
1811			}
1812		}
1813		if ((qlcnic_83xx_check(adapter) &&
1814		     !(adapter->flags & QLCNIC_TX_INTR_SHARED)) ||
1815		    (qlcnic_82xx_check(adapter) &&
1816		     qlcnic_check_multi_tx(adapter))) {
1817			for (ring = 0; ring < adapter->drv_tx_rings;
1818			     ring++) {
1819				tx_ring = &adapter->tx_ring[ring];
1820				if (tx_ring->irq)
1821					free_irq(tx_ring->irq, tx_ring);
1822			}
1823		}
1824	}
1825}
1826
1827static void qlcnic_get_lro_mss_capability(struct qlcnic_adapter *adapter)
1828{
1829	u32 capab = 0;
1830
1831	if (qlcnic_82xx_check(adapter)) {
1832		if (adapter->ahw->extra_capability[0] &
1833		    QLCNIC_FW_CAPABILITY_2_LRO_MAX_TCP_SEG)
1834			adapter->flags |= QLCNIC_FW_LRO_MSS_CAP;
1835	} else {
1836		capab = adapter->ahw->capabilities;
1837		if (QLC_83XX_GET_FW_LRO_MSS_CAPABILITY(capab))
1838			adapter->flags |= QLCNIC_FW_LRO_MSS_CAP;
1839	}
1840}
1841
1842static int qlcnic_config_def_intr_coalesce(struct qlcnic_adapter *adapter)
1843{
1844	struct qlcnic_hardware_context *ahw = adapter->ahw;
1845	int err;
1846
1847	/* Initialize interrupt coalesce parameters */
1848	ahw->coal.flag = QLCNIC_INTR_DEFAULT;
1849
1850	if (qlcnic_83xx_check(adapter)) {
1851		ahw->coal.type = QLCNIC_INTR_COAL_TYPE_RX_TX;
1852		ahw->coal.tx_time_us = QLCNIC_DEF_INTR_COALESCE_TX_TIME_US;
1853		ahw->coal.tx_packets = QLCNIC_DEF_INTR_COALESCE_TX_PACKETS;
1854		ahw->coal.rx_time_us = QLCNIC_DEF_INTR_COALESCE_RX_TIME_US;
1855		ahw->coal.rx_packets = QLCNIC_DEF_INTR_COALESCE_RX_PACKETS;
1856
1857		err = qlcnic_83xx_set_rx_tx_intr_coal(adapter);
1858	} else {
1859		ahw->coal.type = QLCNIC_INTR_COAL_TYPE_RX;
1860		ahw->coal.rx_time_us = QLCNIC_DEF_INTR_COALESCE_RX_TIME_US;
1861		ahw->coal.rx_packets = QLCNIC_DEF_INTR_COALESCE_RX_PACKETS;
1862
1863		err = qlcnic_82xx_set_rx_coalesce(adapter);
1864	}
1865
1866	return err;
1867}
1868
1869int __qlcnic_up(struct qlcnic_adapter *adapter, struct net_device *netdev)
1870{
1871	int ring;
1872	struct qlcnic_host_rds_ring *rds_ring;
1873
1874	if (adapter->is_up != QLCNIC_ADAPTER_UP_MAGIC)
1875		return -EIO;
1876
1877	if (test_bit(__QLCNIC_DEV_UP, &adapter->state))
1878		return 0;
1879
1880	if (qlcnic_set_eswitch_port_config(adapter))
1881		return -EIO;
1882
1883	qlcnic_get_lro_mss_capability(adapter);
1884
1885	if (qlcnic_fw_create_ctx(adapter))
1886		return -EIO;
1887
1888	for (ring = 0; ring < adapter->max_rds_rings; ring++) {
1889		rds_ring = &adapter->recv_ctx->rds_rings[ring];
1890		qlcnic_post_rx_buffers(adapter, rds_ring, ring);
1891	}
1892
1893	qlcnic_set_multi(netdev);
1894	qlcnic_fw_cmd_set_mtu(adapter, netdev->mtu);
1895
1896	adapter->ahw->linkup = 0;
1897
1898	if (adapter->drv_sds_rings > 1)
1899		qlcnic_config_rss(adapter, 1);
1900
1901	qlcnic_config_def_intr_coalesce(adapter);
1902
1903	if (netdev->features & NETIF_F_LRO)
1904		qlcnic_config_hw_lro(adapter, QLCNIC_LRO_ENABLED);
1905
1906	set_bit(__QLCNIC_DEV_UP, &adapter->state);
1907	qlcnic_napi_enable(adapter);
1908
1909	qlcnic_linkevent_request(adapter, 1);
1910
1911	adapter->ahw->reset_context = 0;
1912	netif_tx_start_all_queues(netdev);
1913	return 0;
1914}
1915
1916int qlcnic_up(struct qlcnic_adapter *adapter, struct net_device *netdev)
1917{
1918	int err = 0;
1919
1920	rtnl_lock();
1921	if (netif_running(netdev))
1922		err = __qlcnic_up(adapter, netdev);
1923	rtnl_unlock();
1924
1925	return err;
1926}
1927
1928void __qlcnic_down(struct qlcnic_adapter *adapter, struct net_device *netdev)
1929{
1930	int ring;
1931
1932	if (adapter->is_up != QLCNIC_ADAPTER_UP_MAGIC)
1933		return;
1934
1935	if (!test_and_clear_bit(__QLCNIC_DEV_UP, &adapter->state))
1936		return;
1937
1938	smp_mb();
1939	netif_carrier_off(netdev);
1940	adapter->ahw->linkup = 0;
1941	netif_tx_disable(netdev);
1942
1943	qlcnic_free_mac_list(adapter);
1944
1945	if (adapter->fhash.fnum)
1946		qlcnic_delete_lb_filters(adapter);
1947
1948	qlcnic_nic_set_promisc(adapter, QLCNIC_NIU_NON_PROMISC_MODE);
1949	if (qlcnic_sriov_vf_check(adapter))
1950		qlcnic_sriov_cleanup_async_list(&adapter->ahw->sriov->bc);
1951
1952	qlcnic_napi_disable(adapter);
1953
1954	qlcnic_fw_destroy_ctx(adapter);
1955	adapter->flags &= ~QLCNIC_FW_LRO_MSS_CAP;
1956
1957	qlcnic_reset_rx_buffers_list(adapter);
1958
1959	for (ring = 0; ring < adapter->drv_tx_rings; ring++)
1960		qlcnic_release_tx_buffers(adapter, &adapter->tx_ring[ring]);
1961}
1962
1963/* Usage: During suspend and firmware recovery module */
1964
1965void qlcnic_down(struct qlcnic_adapter *adapter, struct net_device *netdev)
1966{
1967	rtnl_lock();
1968	if (netif_running(netdev))
1969		__qlcnic_down(adapter, netdev);
1970	rtnl_unlock();
1971
1972}
1973
1974int
1975qlcnic_attach(struct qlcnic_adapter *adapter)
1976{
1977	struct net_device *netdev = adapter->netdev;
1978	struct pci_dev *pdev = adapter->pdev;
1979	int err;
1980
1981	if (adapter->is_up == QLCNIC_ADAPTER_UP_MAGIC)
1982		return 0;
1983
1984	err = qlcnic_napi_add(adapter, netdev);
1985	if (err)
1986		return err;
1987
1988	err = qlcnic_alloc_sw_resources(adapter);
1989	if (err) {
1990		dev_err(&pdev->dev, "Error in setting sw resources\n");
1991		goto err_out_napi_del;
1992	}
1993
1994	err = qlcnic_alloc_hw_resources(adapter);
1995	if (err) {
1996		dev_err(&pdev->dev, "Error in setting hw resources\n");
1997		goto err_out_free_sw;
1998	}
1999
2000	err = qlcnic_request_irq(adapter);
2001	if (err) {
2002		dev_err(&pdev->dev, "failed to setup interrupt\n");
2003		goto err_out_free_hw;
2004	}
2005
2006	qlcnic_create_sysfs_entries(adapter);
2007
2008#ifdef CONFIG_QLCNIC_VXLAN
2009	if (qlcnic_encap_rx_offload(adapter))
2010		vxlan_get_rx_port(netdev);
2011#endif
2012
2013	adapter->is_up = QLCNIC_ADAPTER_UP_MAGIC;
2014	return 0;
2015
2016err_out_free_hw:
2017	qlcnic_free_hw_resources(adapter);
2018err_out_free_sw:
2019	qlcnic_free_sw_resources(adapter);
2020err_out_napi_del:
2021	qlcnic_napi_del(adapter);
2022	return err;
2023}
2024
2025void qlcnic_detach(struct qlcnic_adapter *adapter)
2026{
2027	if (adapter->is_up != QLCNIC_ADAPTER_UP_MAGIC)
2028		return;
2029
2030	qlcnic_remove_sysfs_entries(adapter);
2031
2032	qlcnic_free_hw_resources(adapter);
2033	qlcnic_release_rx_buffers(adapter);
2034	qlcnic_free_irq(adapter);
2035	qlcnic_napi_del(adapter);
2036	qlcnic_free_sw_resources(adapter);
2037
2038	adapter->is_up = 0;
2039}
2040
2041void qlcnic_diag_free_res(struct net_device *netdev, int drv_sds_rings)
2042{
2043	struct qlcnic_adapter *adapter = netdev_priv(netdev);
2044	struct qlcnic_host_sds_ring *sds_ring;
2045	int drv_tx_rings = adapter->drv_tx_rings;
2046	int ring;
2047
2048	clear_bit(__QLCNIC_DEV_UP, &adapter->state);
2049	if (adapter->ahw->diag_test == QLCNIC_INTERRUPT_TEST) {
2050		for (ring = 0; ring < adapter->drv_sds_rings; ring++) {
2051			sds_ring = &adapter->recv_ctx->sds_rings[ring];
2052			qlcnic_disable_sds_intr(adapter, sds_ring);
2053		}
2054	}
2055
2056	qlcnic_fw_destroy_ctx(adapter);
2057
2058	qlcnic_detach(adapter);
2059
2060	adapter->ahw->diag_test = 0;
2061	adapter->drv_sds_rings = drv_sds_rings;
2062	adapter->drv_tx_rings = drv_tx_rings;
2063
2064	if (qlcnic_attach(adapter))
2065		goto out;
2066
2067	if (netif_running(netdev))
2068		__qlcnic_up(adapter, netdev);
2069out:
2070	netif_device_attach(netdev);
2071}
2072
2073static int qlcnic_alloc_adapter_resources(struct qlcnic_adapter *adapter)
2074{
2075	struct qlcnic_hardware_context *ahw = adapter->ahw;
2076	int err = 0;
2077
2078	adapter->recv_ctx = kzalloc(sizeof(struct qlcnic_recv_context),
2079				GFP_KERNEL);
2080	if (!adapter->recv_ctx) {
2081		err = -ENOMEM;
2082		goto err_out;
2083	}
2084
2085	if (qlcnic_83xx_check(adapter)) {
2086		ahw->coal.type = QLCNIC_INTR_COAL_TYPE_RX_TX;
2087		ahw->coal.tx_time_us = QLCNIC_DEF_INTR_COALESCE_TX_TIME_US;
2088		ahw->coal.tx_packets = QLCNIC_DEF_INTR_COALESCE_TX_PACKETS;
2089		ahw->coal.rx_time_us = QLCNIC_DEF_INTR_COALESCE_RX_TIME_US;
2090		ahw->coal.rx_packets = QLCNIC_DEF_INTR_COALESCE_RX_PACKETS;
2091	} else {
2092		ahw->coal.type = QLCNIC_INTR_COAL_TYPE_RX;
2093		ahw->coal.rx_time_us = QLCNIC_DEF_INTR_COALESCE_RX_TIME_US;
2094		ahw->coal.rx_packets = QLCNIC_DEF_INTR_COALESCE_RX_PACKETS;
2095	}
2096
2097	/* clear stats */
2098	memset(&adapter->stats, 0, sizeof(adapter->stats));
2099err_out:
2100	return err;
2101}
2102
2103static void qlcnic_free_adapter_resources(struct qlcnic_adapter *adapter)
2104{
2105	struct qlcnic_fw_dump *fw_dump = &adapter->ahw->fw_dump;
2106
2107	kfree(adapter->recv_ctx);
2108	adapter->recv_ctx = NULL;
2109
2110	if (fw_dump->tmpl_hdr) {
2111		vfree(fw_dump->tmpl_hdr);
2112		fw_dump->tmpl_hdr = NULL;
2113	}
2114
2115	if (fw_dump->dma_buffer) {
2116		dma_free_coherent(&adapter->pdev->dev, QLC_PEX_DMA_READ_SIZE,
2117				  fw_dump->dma_buffer, fw_dump->phys_addr);
2118		fw_dump->dma_buffer = NULL;
2119	}
2120
2121	kfree(adapter->ahw->reset.buff);
2122	adapter->ahw->fw_dump.tmpl_hdr = NULL;
2123}
2124
2125int qlcnic_diag_alloc_res(struct net_device *netdev, int test)
2126{
2127	struct qlcnic_adapter *adapter = netdev_priv(netdev);
2128	struct qlcnic_host_sds_ring *sds_ring;
2129	struct qlcnic_host_rds_ring *rds_ring;
2130	int ring;
2131	int ret;
2132
2133	netif_device_detach(netdev);
2134
2135	if (netif_running(netdev))
2136		__qlcnic_down(adapter, netdev);
2137
2138	qlcnic_detach(adapter);
2139
2140	adapter->drv_sds_rings = QLCNIC_SINGLE_RING;
2141	adapter->ahw->diag_test = test;
2142	adapter->ahw->linkup = 0;
2143
2144	ret = qlcnic_attach(adapter);
2145	if (ret) {
2146		netif_device_attach(netdev);
2147		return ret;
2148	}
2149
2150	ret = qlcnic_fw_create_ctx(adapter);
2151	if (ret) {
2152		qlcnic_detach(adapter);
2153		netif_device_attach(netdev);
2154		return ret;
2155	}
2156
2157	for (ring = 0; ring < adapter->max_rds_rings; ring++) {
2158		rds_ring = &adapter->recv_ctx->rds_rings[ring];
2159		qlcnic_post_rx_buffers(adapter, rds_ring, ring);
2160	}
2161
2162	if (adapter->ahw->diag_test == QLCNIC_INTERRUPT_TEST) {
2163		for (ring = 0; ring < adapter->drv_sds_rings; ring++) {
2164			sds_ring = &adapter->recv_ctx->sds_rings[ring];
2165			qlcnic_enable_sds_intr(adapter, sds_ring);
2166		}
2167	}
2168
2169	if (adapter->ahw->diag_test == QLCNIC_LOOPBACK_TEST) {
2170		adapter->ahw->loopback_state = 0;
2171		qlcnic_linkevent_request(adapter, 1);
2172	}
2173
2174	set_bit(__QLCNIC_DEV_UP, &adapter->state);
2175
2176	return 0;
2177}
2178
2179/* Reset context in hardware only */
2180static int
2181qlcnic_reset_hw_context(struct qlcnic_adapter *adapter)
2182{
2183	struct net_device *netdev = adapter->netdev;
2184
2185	if (test_and_set_bit(__QLCNIC_RESETTING, &adapter->state))
2186		return -EBUSY;
2187
2188	netif_device_detach(netdev);
2189
2190	qlcnic_down(adapter, netdev);
2191
2192	qlcnic_up(adapter, netdev);
2193
2194	netif_device_attach(netdev);
2195
2196	clear_bit(__QLCNIC_RESETTING, &adapter->state);
2197	netdev_info(adapter->netdev, "%s: soft reset complete\n", __func__);
2198	return 0;
2199}
2200
2201int
2202qlcnic_reset_context(struct qlcnic_adapter *adapter)
2203{
2204	int err = 0;
2205	struct net_device *netdev = adapter->netdev;
2206
2207	if (test_and_set_bit(__QLCNIC_RESETTING, &adapter->state))
2208		return -EBUSY;
2209
2210	if (adapter->is_up == QLCNIC_ADAPTER_UP_MAGIC) {
2211
2212		netif_device_detach(netdev);
2213
2214		if (netif_running(netdev))
2215			__qlcnic_down(adapter, netdev);
2216
2217		qlcnic_detach(adapter);
2218
2219		if (netif_running(netdev)) {
2220			err = qlcnic_attach(adapter);
2221			if (!err) {
2222				__qlcnic_up(adapter, netdev);
2223				qlcnic_restore_indev_addr(netdev, NETDEV_UP);
2224			}
2225		}
2226
2227		netif_device_attach(netdev);
2228	}
2229
2230	clear_bit(__QLCNIC_RESETTING, &adapter->state);
2231	return err;
2232}
2233
2234static void qlcnic_82xx_set_mac_filter_count(struct qlcnic_adapter *adapter)
2235{
2236	struct qlcnic_hardware_context *ahw = adapter->ahw;
2237	u16 act_pci_fn = ahw->total_nic_func;
2238	u16 count;
2239
2240	ahw->max_mc_count = QLCNIC_MAX_MC_COUNT;
2241	if (act_pci_fn <= 2)
2242		count = (QLCNIC_MAX_UC_COUNT - QLCNIC_MAX_MC_COUNT) /
2243			 act_pci_fn;
2244	else
2245		count = (QLCNIC_LB_MAX_FILTERS - QLCNIC_MAX_MC_COUNT) /
2246			 act_pci_fn;
2247	ahw->max_uc_count = count;
2248}
2249
2250static int qlcnic_set_real_num_queues(struct qlcnic_adapter *adapter,
2251				      u8 tx_queues, u8 rx_queues)
2252{
2253	struct net_device *netdev = adapter->netdev;
2254	int err = 0;
2255
2256	if (tx_queues) {
2257		err = netif_set_real_num_tx_queues(netdev, tx_queues);
2258		if (err) {
2259			netdev_err(netdev, "failed to set %d Tx queues\n",
2260				   tx_queues);
2261			return err;
2262		}
2263	}
2264
2265	if (rx_queues) {
2266		err = netif_set_real_num_rx_queues(netdev, rx_queues);
2267		if (err)
2268			netdev_err(netdev, "failed to set %d Rx queues\n",
2269				   rx_queues);
2270	}
2271
2272	return err;
2273}
2274
2275int
2276qlcnic_setup_netdev(struct qlcnic_adapter *adapter, struct net_device *netdev,
2277		    int pci_using_dac)
2278{
2279	int err;
2280	struct pci_dev *pdev = adapter->pdev;
2281
2282	adapter->rx_csum = 1;
2283	adapter->ahw->mc_enabled = 0;
2284	qlcnic_set_mac_filter_count(adapter);
2285
2286	netdev->netdev_ops	   = &qlcnic_netdev_ops;
2287	netdev->watchdog_timeo     = QLCNIC_WATCHDOG_TIMEOUTVALUE * HZ;
2288
2289	qlcnic_change_mtu(netdev, netdev->mtu);
2290
2291	netdev->ethtool_ops = (qlcnic_sriov_vf_check(adapter)) ?
2292		&qlcnic_sriov_vf_ethtool_ops : &qlcnic_ethtool_ops;
2293
2294	netdev->features |= (NETIF_F_SG | NETIF_F_IP_CSUM | NETIF_F_RXCSUM |
2295			     NETIF_F_IPV6_CSUM | NETIF_F_GRO |
2296			     NETIF_F_HW_VLAN_CTAG_RX);
2297	netdev->vlan_features |= (NETIF_F_SG | NETIF_F_IP_CSUM |
2298				  NETIF_F_IPV6_CSUM);
2299
2300	if (QLCNIC_IS_TSO_CAPABLE(adapter)) {
2301		netdev->features |= (NETIF_F_TSO | NETIF_F_TSO6);
2302		netdev->vlan_features |= (NETIF_F_TSO | NETIF_F_TSO6);
2303	}
2304
2305	if (pci_using_dac) {
2306		netdev->features |= NETIF_F_HIGHDMA;
2307		netdev->vlan_features |= NETIF_F_HIGHDMA;
2308	}
2309
2310	if (qlcnic_vlan_tx_check(adapter))
2311		netdev->features |= (NETIF_F_HW_VLAN_CTAG_TX);
2312
2313	if (qlcnic_sriov_vf_check(adapter))
2314		netdev->features |= NETIF_F_HW_VLAN_CTAG_FILTER;
2315
2316	if (adapter->ahw->capabilities & QLCNIC_FW_CAPABILITY_HW_LRO)
2317		netdev->features |= NETIF_F_LRO;
2318
2319	if (qlcnic_encap_tx_offload(adapter)) {
2320		netdev->features |= NETIF_F_GSO_UDP_TUNNEL;
2321
2322		/* encapsulation Tx offload supported by Adapter */
2323		netdev->hw_enc_features = NETIF_F_IP_CSUM        |
2324					  NETIF_F_GSO_UDP_TUNNEL |
2325					  NETIF_F_TSO            |
2326					  NETIF_F_TSO6;
2327	}
2328
2329	if (qlcnic_encap_rx_offload(adapter))
2330		netdev->hw_enc_features |= NETIF_F_RXCSUM;
2331
2332	netdev->hw_features = netdev->features;
2333	netdev->priv_flags |= IFF_UNICAST_FLT;
2334	netdev->irq = adapter->msix_entries[0].vector;
2335
2336	err = qlcnic_set_real_num_queues(adapter, adapter->drv_tx_rings,
2337					 adapter->drv_sds_rings);
2338	if (err)
2339		return err;
2340
2341	qlcnic_dcb_init_dcbnl_ops(adapter->dcb);
2342
2343	err = register_netdev(netdev);
2344	if (err) {
2345		dev_err(&pdev->dev, "failed to register net device\n");
2346		return err;
2347	}
2348
2349	return 0;
2350}
2351
2352static int qlcnic_set_dma_mask(struct pci_dev *pdev, int *pci_using_dac)
2353{
2354	if (!pci_set_dma_mask(pdev, DMA_BIT_MASK(64)) &&
2355			!pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(64)))
2356		*pci_using_dac = 1;
2357	else if (!pci_set_dma_mask(pdev, DMA_BIT_MASK(32)) &&
2358			!pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(32)))
2359		*pci_using_dac = 0;
2360	else {
2361		dev_err(&pdev->dev, "Unable to set DMA mask, aborting\n");
2362		return -EIO;
2363	}
2364
2365	return 0;
2366}
2367
2368void qlcnic_free_tx_rings(struct qlcnic_adapter *adapter)
2369{
2370	int ring;
2371	struct qlcnic_host_tx_ring *tx_ring;
2372
2373	for (ring = 0; ring < adapter->drv_tx_rings; ring++) {
2374		tx_ring = &adapter->tx_ring[ring];
2375		if (tx_ring) {
2376			vfree(tx_ring->cmd_buf_arr);
2377			tx_ring->cmd_buf_arr = NULL;
2378		}
2379	}
2380	kfree(adapter->tx_ring);
2381}
2382
2383int qlcnic_alloc_tx_rings(struct qlcnic_adapter *adapter,
2384			  struct net_device *netdev)
2385{
2386	int ring, vector, index;
2387	struct qlcnic_host_tx_ring *tx_ring;
2388	struct qlcnic_cmd_buffer *cmd_buf_arr;
2389
2390	tx_ring = kcalloc(adapter->drv_tx_rings,
2391			  sizeof(struct qlcnic_host_tx_ring), GFP_KERNEL);
2392	if (tx_ring == NULL)
2393		return -ENOMEM;
2394
2395	adapter->tx_ring = tx_ring;
2396
2397	for (ring = 0; ring < adapter->drv_tx_rings; ring++) {
2398		tx_ring = &adapter->tx_ring[ring];
2399		tx_ring->num_desc = adapter->num_txd;
2400		tx_ring->txq = netdev_get_tx_queue(netdev, ring);
2401		cmd_buf_arr = vzalloc(TX_BUFF_RINGSIZE(tx_ring));
2402		if (cmd_buf_arr == NULL) {
2403			qlcnic_free_tx_rings(adapter);
2404			return -ENOMEM;
2405		}
2406		memset(cmd_buf_arr, 0, TX_BUFF_RINGSIZE(tx_ring));
2407		tx_ring->cmd_buf_arr = cmd_buf_arr;
2408		spin_lock_init(&tx_ring->tx_clean_lock);
2409	}
2410
2411	if (qlcnic_83xx_check(adapter) ||
2412	    (qlcnic_82xx_check(adapter) && qlcnic_check_multi_tx(adapter))) {
2413		for (ring = 0; ring < adapter->drv_tx_rings; ring++) {
2414			tx_ring = &adapter->tx_ring[ring];
2415			tx_ring->adapter = adapter;
2416			if (adapter->flags & QLCNIC_MSIX_ENABLED) {
2417				index = adapter->drv_sds_rings + ring;
2418				vector = adapter->msix_entries[index].vector;
2419				tx_ring->irq = vector;
2420			}
2421		}
2422	}
2423
2424	return 0;
2425}
2426
2427void qlcnic_set_drv_version(struct qlcnic_adapter *adapter)
2428{
2429	struct qlcnic_hardware_context *ahw = adapter->ahw;
2430	u32 fw_cmd = 0;
2431
2432	if (qlcnic_82xx_check(adapter))
2433		fw_cmd = QLCNIC_CMD_82XX_SET_DRV_VER;
2434	else if (qlcnic_83xx_check(adapter))
2435		fw_cmd = QLCNIC_CMD_83XX_SET_DRV_VER;
2436
2437	if (ahw->extra_capability[0] & QLCNIC_FW_CAPABILITY_SET_DRV_VER)
2438		qlcnic_fw_cmd_set_drv_version(adapter, fw_cmd);
2439}
2440
2441/* Reset firmware API lock */
2442static void qlcnic_reset_api_lock(struct qlcnic_adapter *adapter)
2443{
2444	qlcnic_api_lock(adapter);
2445	qlcnic_api_unlock(adapter);
2446}
2447
2448
2449static int
2450qlcnic_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
2451{
2452	struct net_device *netdev = NULL;
2453	struct qlcnic_adapter *adapter = NULL;
2454	struct qlcnic_hardware_context *ahw;
2455	int err, pci_using_dac = -1;
2456	char board_name[QLCNIC_MAX_BOARD_NAME_LEN + 19]; /* MAC + ": " + name */
2457
2458	err = pci_enable_device(pdev);
2459	if (err)
2460		return err;
2461
2462	if (!(pci_resource_flags(pdev, 0) & IORESOURCE_MEM)) {
2463		err = -ENODEV;
2464		goto err_out_disable_pdev;
2465	}
2466
2467	err = qlcnic_set_dma_mask(pdev, &pci_using_dac);
2468	if (err)
2469		goto err_out_disable_pdev;
2470
2471	err = pci_request_regions(pdev, qlcnic_driver_name);
2472	if (err)
2473		goto err_out_disable_pdev;
2474
2475	pci_set_master(pdev);
2476	pci_enable_pcie_error_reporting(pdev);
2477
2478	ahw = kzalloc(sizeof(struct qlcnic_hardware_context), GFP_KERNEL);
2479	if (!ahw) {
2480		err = -ENOMEM;
2481		goto err_out_free_res;
2482	}
2483
2484	switch (ent->device) {
2485	case PCI_DEVICE_ID_QLOGIC_QLE824X:
2486		ahw->hw_ops = &qlcnic_hw_ops;
2487		ahw->reg_tbl = (u32 *) qlcnic_reg_tbl;
2488		break;
2489	case PCI_DEVICE_ID_QLOGIC_QLE834X:
2490	case PCI_DEVICE_ID_QLOGIC_QLE8830:
2491	case PCI_DEVICE_ID_QLOGIC_QLE844X:
2492		qlcnic_83xx_register_map(ahw);
2493		break;
2494	case PCI_DEVICE_ID_QLOGIC_VF_QLE834X:
2495	case PCI_DEVICE_ID_QLOGIC_VF_QLE844X:
2496		qlcnic_sriov_vf_register_map(ahw);
2497		break;
2498	default:
2499		goto err_out_free_hw_res;
2500	}
2501
2502	err = qlcnic_setup_pci_map(pdev, ahw);
2503	if (err)
2504		goto err_out_free_hw_res;
2505
2506	netdev = alloc_etherdev_mq(sizeof(struct qlcnic_adapter),
2507				   QLCNIC_MAX_TX_RINGS);
2508	if (!netdev) {
2509		err = -ENOMEM;
2510		goto err_out_iounmap;
2511	}
2512
2513	SET_NETDEV_DEV(netdev, &pdev->dev);
2514
2515	adapter = netdev_priv(netdev);
2516	adapter->netdev  = netdev;
2517	adapter->pdev    = pdev;
2518	adapter->ahw = ahw;
2519
2520	adapter->qlcnic_wq = create_singlethread_workqueue("qlcnic");
2521	if (adapter->qlcnic_wq == NULL) {
2522		err = -ENOMEM;
2523		dev_err(&pdev->dev, "Failed to create workqueue\n");
2524		goto err_out_free_netdev;
2525	}
2526
2527	err = qlcnic_alloc_adapter_resources(adapter);
2528	if (err)
2529		goto err_out_free_wq;
2530
2531	adapter->dev_rst_time = jiffies;
2532	ahw->revision_id = pdev->revision;
2533	ahw->max_vnic_func = qlcnic_get_vnic_func_count(adapter);
2534	if (qlcnic_mac_learn == FDB_MAC_LEARN)
2535		adapter->fdb_mac_learn = true;
2536	else if (qlcnic_mac_learn == DRV_MAC_LEARN)
2537		adapter->drv_mac_learn = true;
2538
2539	rwlock_init(&adapter->ahw->crb_lock);
2540	mutex_init(&adapter->ahw->mem_lock);
2541
2542	INIT_LIST_HEAD(&adapter->mac_list);
2543
2544	qlcnic_register_dcb(adapter);
2545
2546	if (qlcnic_82xx_check(adapter)) {
2547		qlcnic_check_vf(adapter, ent);
2548		adapter->portnum = adapter->ahw->pci_func;
2549		qlcnic_reset_api_lock(adapter);
2550		err = qlcnic_start_firmware(adapter);
2551		if (err) {
2552			dev_err(&pdev->dev, "Loading fw failed.Please Reboot\n"
2553				"\t\tIf reboot doesn't help, try flashing the card\n");
2554			goto err_out_maintenance_mode;
2555		}
2556
2557		/* compute and set default and max tx/sds rings */
2558		if (adapter->ahw->msix_supported) {
2559			if (qlcnic_check_multi_tx_capability(adapter) == 1)
2560				qlcnic_set_tx_ring_count(adapter,
2561							 QLCNIC_SINGLE_RING);
2562			else
2563				qlcnic_set_tx_ring_count(adapter,
2564							 QLCNIC_DEF_TX_RINGS);
2565			qlcnic_set_sds_ring_count(adapter,
2566						  QLCNIC_DEF_SDS_RINGS);
2567		} else {
2568			qlcnic_set_tx_ring_count(adapter, QLCNIC_SINGLE_RING);
2569			qlcnic_set_sds_ring_count(adapter, QLCNIC_SINGLE_RING);
2570		}
2571
2572		err = qlcnic_setup_idc_param(adapter);
2573		if (err)
2574			goto err_out_free_hw;
2575
2576		adapter->flags |= QLCNIC_NEED_FLR;
2577
2578	} else if (qlcnic_83xx_check(adapter)) {
2579		qlcnic_83xx_check_vf(adapter, ent);
2580		adapter->portnum = adapter->ahw->pci_func;
2581		err = qlcnic_83xx_init(adapter, pci_using_dac);
2582		if (err) {
2583			switch (err) {
2584			case -ENOTRECOVERABLE:
2585				dev_err(&pdev->dev, "Adapter initialization failed due to a faulty hardware\n");
2586				dev_err(&pdev->dev, "Please replace the adapter with new one and return the faulty adapter for repair\n");
2587				goto err_out_free_hw;
2588			case -ENOMEM:
2589				dev_err(&pdev->dev, "Adapter initialization failed. Please reboot\n");
2590				goto err_out_free_hw;
2591			case -EOPNOTSUPP:
2592				dev_err(&pdev->dev, "Adapter initialization failed\n");
2593				goto err_out_free_hw;
2594			default:
2595				dev_err(&pdev->dev, "Adapter initialization failed. Driver will load in maintenance mode to recover the adapter using the application\n");
2596				goto err_out_maintenance_mode;
2597			}
2598		}
2599
2600		if (qlcnic_sriov_vf_check(adapter))
2601			return 0;
2602	} else {
2603		dev_err(&pdev->dev,
2604			"%s: failed. Please Reboot\n", __func__);
2605		err = -ENODEV;
2606		goto err_out_free_hw;
2607	}
2608
2609	if (qlcnic_read_mac_addr(adapter))
2610		dev_warn(&pdev->dev, "failed to read mac addr\n");
2611
2612	qlcnic_read_phys_port_id(adapter);
2613
2614	if (adapter->portnum == 0) {
2615		qlcnic_get_board_name(adapter, board_name);
2616
2617		pr_info("%s: %s Board Chip rev 0x%x\n",
2618			module_name(THIS_MODULE),
2619			board_name, adapter->ahw->revision_id);
2620	}
2621
2622	if (qlcnic_83xx_check(adapter) && !qlcnic_use_msi_x &&
2623	    !!qlcnic_use_msi)
2624		dev_warn(&pdev->dev,
2625			 "Device does not support MSI interrupts\n");
2626
2627	if (qlcnic_82xx_check(adapter)) {
2628		qlcnic_dcb_enable(adapter->dcb);
2629		qlcnic_dcb_get_info(adapter->dcb);
2630		err = qlcnic_setup_intr(adapter);
2631
2632		if (err) {
2633			dev_err(&pdev->dev, "Failed to setup interrupt\n");
2634			goto err_out_disable_msi;
2635		}
2636	}
2637
2638	err = qlcnic_get_act_pci_func(adapter);
2639	if (err)
2640		goto err_out_disable_mbx_intr;
2641
2642	if (adapter->portnum == 0)
2643		qlcnic_set_drv_version(adapter);
2644
2645	err = qlcnic_setup_netdev(adapter, netdev, pci_using_dac);
2646	if (err)
2647		goto err_out_disable_mbx_intr;
2648
2649	pci_set_drvdata(pdev, adapter);
2650
2651	if (qlcnic_82xx_check(adapter))
2652		qlcnic_schedule_work(adapter, qlcnic_fw_poll_work,
2653				     FW_POLL_DELAY);
2654
2655	switch (adapter->ahw->port_type) {
2656	case QLCNIC_GBE:
2657		dev_info(&adapter->pdev->dev, "%s: GbE port initialized\n",
2658				adapter->netdev->name);
2659		break;
2660	case QLCNIC_XGBE:
2661		dev_info(&adapter->pdev->dev, "%s: XGbE port initialized\n",
2662				adapter->netdev->name);
2663		break;
2664	}
2665
2666	if (adapter->drv_mac_learn)
2667		qlcnic_alloc_lb_filters_mem(adapter);
2668
2669	qlcnic_add_sysfs(adapter);
2670	qlcnic_register_hwmon_dev(adapter);
2671	return 0;
2672
2673err_out_disable_mbx_intr:
2674	if (qlcnic_83xx_check(adapter))
2675		qlcnic_83xx_free_mbx_intr(adapter);
2676
2677err_out_disable_msi:
2678	qlcnic_teardown_intr(adapter);
2679	qlcnic_cancel_idc_work(adapter);
2680	qlcnic_clr_all_drv_state(adapter, 0);
2681
2682err_out_free_hw:
2683	qlcnic_free_adapter_resources(adapter);
2684
2685err_out_free_wq:
2686	destroy_workqueue(adapter->qlcnic_wq);
2687
2688err_out_free_netdev:
2689	free_netdev(netdev);
2690
2691err_out_iounmap:
2692	qlcnic_cleanup_pci_map(ahw);
2693
2694err_out_free_hw_res:
2695	kfree(ahw);
2696
2697err_out_free_res:
2698	pci_release_regions(pdev);
2699
2700err_out_disable_pdev:
2701	pci_disable_device(pdev);
2702	return err;
2703
2704err_out_maintenance_mode:
2705	set_bit(__QLCNIC_MAINTENANCE_MODE, &adapter->state);
2706	netdev->netdev_ops = &qlcnic_netdev_failed_ops;
2707	netdev->ethtool_ops = &qlcnic_ethtool_failed_ops;
2708	ahw->port_type = QLCNIC_XGBE;
2709
2710	if (qlcnic_83xx_check(adapter))
2711		adapter->tgt_status_reg = NULL;
2712	else
2713		ahw->board_type = QLCNIC_BRDTYPE_P3P_10G_SFP_PLUS;
2714
2715	err = register_netdev(netdev);
2716
2717	if (err) {
2718		dev_err(&pdev->dev, "Failed to register net device\n");
2719		qlcnic_clr_all_drv_state(adapter, 0);
2720		goto err_out_free_hw;
2721	}
2722
2723	pci_set_drvdata(pdev, adapter);
2724	qlcnic_add_sysfs(adapter);
2725
2726	return 0;
2727}
2728
2729static void qlcnic_remove(struct pci_dev *pdev)
2730{
2731	struct qlcnic_adapter *adapter;
2732	struct net_device *netdev;
2733	struct qlcnic_hardware_context *ahw;
2734
2735	adapter = pci_get_drvdata(pdev);
2736	if (adapter == NULL)
2737		return;
2738
2739	netdev = adapter->netdev;
2740
2741	qlcnic_cancel_idc_work(adapter);
2742	qlcnic_sriov_pf_disable(adapter);
2743	ahw = adapter->ahw;
2744
2745	unregister_netdev(netdev);
2746	qlcnic_sriov_cleanup(adapter);
2747
2748	if (qlcnic_83xx_check(adapter)) {
2749		qlcnic_83xx_initialize_nic(adapter, 0);
2750		cancel_delayed_work_sync(&adapter->idc_aen_work);
2751		qlcnic_83xx_free_mbx_intr(adapter);
2752		qlcnic_83xx_detach_mailbox_work(adapter);
2753		qlcnic_83xx_free_mailbox(ahw->mailbox);
2754		kfree(ahw->fw_info);
2755	}
2756
2757	qlcnic_dcb_free(adapter->dcb);
2758	qlcnic_detach(adapter);
2759	kfree(adapter->npars);
2760	kfree(adapter->eswitch);
2761
2762	if (qlcnic_82xx_check(adapter))
2763		qlcnic_clr_all_drv_state(adapter, 0);
2764
2765	clear_bit(__QLCNIC_RESETTING, &adapter->state);
2766
2767	qlcnic_free_lb_filters_mem(adapter);
2768
2769	qlcnic_teardown_intr(adapter);
2770
2771	qlcnic_remove_sysfs(adapter);
2772
2773	qlcnic_unregister_hwmon_dev(adapter);
2774
2775	qlcnic_cleanup_pci_map(adapter->ahw);
2776
2777	qlcnic_release_firmware(adapter);
2778
2779	pci_disable_pcie_error_reporting(pdev);
2780	pci_release_regions(pdev);
2781	pci_disable_device(pdev);
2782
2783	if (adapter->qlcnic_wq) {
2784		destroy_workqueue(adapter->qlcnic_wq);
2785		adapter->qlcnic_wq = NULL;
2786	}
2787
2788	qlcnic_free_adapter_resources(adapter);
2789	kfree(ahw);
2790	free_netdev(netdev);
2791}
2792
2793static void qlcnic_shutdown(struct pci_dev *pdev)
2794{
2795	if (__qlcnic_shutdown(pdev))
2796		return;
2797
2798	pci_disable_device(pdev);
2799}
2800
2801#ifdef CONFIG_PM
2802static int qlcnic_suspend(struct pci_dev *pdev, pm_message_t state)
2803{
2804	int retval;
2805
2806	retval = __qlcnic_shutdown(pdev);
2807	if (retval)
2808		return retval;
2809
2810	pci_set_power_state(pdev, pci_choose_state(pdev, state));
2811	return 0;
2812}
2813
2814static int qlcnic_resume(struct pci_dev *pdev)
2815{
2816	struct qlcnic_adapter *adapter = pci_get_drvdata(pdev);
2817	int err;
2818
2819	err = pci_enable_device(pdev);
2820	if (err)
2821		return err;
2822
2823	pci_set_power_state(pdev, PCI_D0);
2824	pci_set_master(pdev);
2825	pci_restore_state(pdev);
2826
2827	return  __qlcnic_resume(adapter);
2828}
2829#endif
2830
2831static int qlcnic_open(struct net_device *netdev)
2832{
2833	struct qlcnic_adapter *adapter = netdev_priv(netdev);
2834	int err;
2835
2836	if (test_bit(__QLCNIC_MAINTENANCE_MODE, &adapter->state)) {
2837		netdev_err(netdev, "%s: Device is in non-operational state\n",
2838			   __func__);
2839
2840		return -EIO;
2841	}
2842
2843	netif_carrier_off(netdev);
2844
2845	err = qlcnic_attach(adapter);
2846	if (err)
2847		return err;
2848
2849	err = __qlcnic_up(adapter, netdev);
2850	if (err)
2851		qlcnic_detach(adapter);
2852
2853	return err;
2854}
2855
2856/*
2857 * qlcnic_close - Disables a network interface entry point
2858 */
2859static int qlcnic_close(struct net_device *netdev)
2860{
2861	struct qlcnic_adapter *adapter = netdev_priv(netdev);
2862
2863	__qlcnic_down(adapter, netdev);
2864
2865	return 0;
2866}
2867
2868#define QLCNIC_VF_LB_BUCKET_SIZE 1
2869
2870void qlcnic_alloc_lb_filters_mem(struct qlcnic_adapter *adapter)
2871{
2872	void *head;
2873	int i;
2874	struct net_device *netdev = adapter->netdev;
2875	u32 filter_size = 0;
2876	u16 act_pci_func = 0;
2877
2878	if (adapter->fhash.fmax && adapter->fhash.fhead)
2879		return;
2880
2881	act_pci_func = adapter->ahw->total_nic_func;
2882	spin_lock_init(&adapter->mac_learn_lock);
2883	spin_lock_init(&adapter->rx_mac_learn_lock);
2884
2885	if (qlcnic_sriov_vf_check(adapter)) {
2886		filter_size = QLCNIC_83XX_SRIOV_VF_MAX_MAC - 1;
2887		adapter->fhash.fbucket_size = QLCNIC_VF_LB_BUCKET_SIZE;
2888	} else if (qlcnic_82xx_check(adapter)) {
2889		filter_size = QLCNIC_LB_MAX_FILTERS;
2890		adapter->fhash.fbucket_size = QLCNIC_LB_BUCKET_SIZE;
2891	} else {
2892		filter_size = QLC_83XX_LB_MAX_FILTERS;
2893		adapter->fhash.fbucket_size = QLC_83XX_LB_BUCKET_SIZE;
2894	}
2895
2896	head = kcalloc(adapter->fhash.fbucket_size,
2897		       sizeof(struct hlist_head), GFP_ATOMIC);
2898
2899	if (!head)
2900		return;
2901
2902	adapter->fhash.fmax = (filter_size / act_pci_func);
2903	adapter->fhash.fhead = head;
2904
2905	netdev_info(netdev, "active nic func = %d, mac filter size=%d\n",
2906		    act_pci_func, adapter->fhash.fmax);
2907
2908	for (i = 0; i < adapter->fhash.fbucket_size; i++)
2909		INIT_HLIST_HEAD(&adapter->fhash.fhead[i]);
2910
2911	adapter->rx_fhash.fbucket_size = adapter->fhash.fbucket_size;
2912
2913	head = kcalloc(adapter->rx_fhash.fbucket_size,
2914		       sizeof(struct hlist_head), GFP_ATOMIC);
2915
2916	if (!head)
2917		return;
2918
2919	adapter->rx_fhash.fmax = (filter_size / act_pci_func);
2920	adapter->rx_fhash.fhead = head;
2921
2922	for (i = 0; i < adapter->rx_fhash.fbucket_size; i++)
2923		INIT_HLIST_HEAD(&adapter->rx_fhash.fhead[i]);
2924}
2925
2926static void qlcnic_free_lb_filters_mem(struct qlcnic_adapter *adapter)
2927{
2928	if (adapter->fhash.fmax)
2929		kfree(adapter->fhash.fhead);
2930
2931	adapter->fhash.fhead = NULL;
2932	adapter->fhash.fmax = 0;
2933
2934	if (adapter->rx_fhash.fmax)
2935		kfree(adapter->rx_fhash.fhead);
2936
2937	adapter->rx_fhash.fmax = 0;
2938	adapter->rx_fhash.fhead = NULL;
2939}
2940
2941int qlcnic_check_temp(struct qlcnic_adapter *adapter)
2942{
2943	struct net_device *netdev = adapter->netdev;
2944	u32 temp_state, temp_val, temp = 0;
2945	int rv = 0;
2946
2947	if (qlcnic_83xx_check(adapter))
2948		temp = QLCRDX(adapter->ahw, QLC_83XX_ASIC_TEMP);
2949
2950	if (qlcnic_82xx_check(adapter))
2951		temp = QLC_SHARED_REG_RD32(adapter, QLCNIC_ASIC_TEMP);
2952
2953	temp_state = qlcnic_get_temp_state(temp);
2954	temp_val = qlcnic_get_temp_val(temp);
2955
2956	if (temp_state == QLCNIC_TEMP_PANIC) {
2957		dev_err(&netdev->dev,
2958		       "Device temperature %d degrees C exceeds"
2959		       " maximum allowed. Hardware has been shut down.\n",
2960		       temp_val);
2961		rv = 1;
2962	} else if (temp_state == QLCNIC_TEMP_WARN) {
2963		if (adapter->ahw->temp == QLCNIC_TEMP_NORMAL) {
2964			dev_err(&netdev->dev,
2965			       "Device temperature %d degrees C "
2966			       "exceeds operating range."
2967			       " Immediate action needed.\n",
2968			       temp_val);
2969		}
2970	} else {
2971		if (adapter->ahw->temp == QLCNIC_TEMP_WARN) {
2972			dev_info(&netdev->dev,
2973			       "Device temperature is now %d degrees C"
2974			       " in normal range.\n", temp_val);
2975		}
2976	}
2977	adapter->ahw->temp = temp_state;
2978	return rv;
2979}
2980
2981static inline void dump_tx_ring_desc(struct qlcnic_host_tx_ring *tx_ring)
2982{
2983	int i;
2984	struct cmd_desc_type0 *tx_desc_info;
2985
2986	for (i = 0; i < tx_ring->num_desc; i++) {
2987		tx_desc_info = &tx_ring->desc_head[i];
2988		pr_info("TX Desc: %d\n", i);
2989		print_hex_dump(KERN_INFO, "TX: ", DUMP_PREFIX_OFFSET, 16, 1,
2990			       &tx_ring->desc_head[i],
2991			       sizeof(struct cmd_desc_type0), true);
2992	}
2993}
2994
2995static void qlcnic_dump_rings(struct qlcnic_adapter *adapter)
2996{
2997	struct qlcnic_recv_context *recv_ctx = adapter->recv_ctx;
2998	struct net_device *netdev = adapter->netdev;
2999	struct qlcnic_host_rds_ring *rds_ring;
3000	struct qlcnic_host_sds_ring *sds_ring;
3001	struct qlcnic_host_tx_ring *tx_ring;
3002	int ring;
3003
3004	if (!netdev || !netif_running(netdev))
3005		return;
3006
3007	for (ring = 0; ring < adapter->max_rds_rings; ring++) {
3008		rds_ring = &recv_ctx->rds_rings[ring];
3009		if (!rds_ring)
3010			continue;
3011		netdev_info(netdev,
3012			    "rds_ring=%d crb_rcv_producer=%d producer=%u num_desc=%u\n",
3013			     ring, readl(rds_ring->crb_rcv_producer),
3014			     rds_ring->producer, rds_ring->num_desc);
3015	}
3016
3017	for (ring = 0; ring < adapter->drv_sds_rings; ring++) {
3018		sds_ring = &(recv_ctx->sds_rings[ring]);
3019		if (!sds_ring)
3020			continue;
3021		netdev_info(netdev,
3022			    "sds_ring=%d crb_sts_consumer=%d consumer=%u crb_intr_mask=%d num_desc=%u\n",
3023			    ring, readl(sds_ring->crb_sts_consumer),
3024			    sds_ring->consumer, readl(sds_ring->crb_intr_mask),
3025			    sds_ring->num_desc);
3026	}
3027
3028	for (ring = 0; ring < adapter->drv_tx_rings; ring++) {
3029		tx_ring = &adapter->tx_ring[ring];
3030		if (!tx_ring)
3031			continue;
3032		netdev_info(netdev, "Tx ring=%d Context Id=0x%x\n",
3033			    ring, tx_ring->ctx_id);
3034		netdev_info(netdev,
3035			    "xmit_finished=%llu, xmit_called=%llu, xmit_on=%llu, xmit_off=%llu\n",
3036			    tx_ring->tx_stats.xmit_finished,
3037			    tx_ring->tx_stats.xmit_called,
3038			    tx_ring->tx_stats.xmit_on,
3039			    tx_ring->tx_stats.xmit_off);
3040
3041		if (tx_ring->crb_intr_mask)
3042			netdev_info(netdev, "crb_intr_mask=%d\n",
3043				    readl(tx_ring->crb_intr_mask));
3044
3045		netdev_info(netdev,
3046			    "hw_producer=%d, sw_producer=%d sw_consumer=%d, hw_consumer=%d\n",
3047			    readl(tx_ring->crb_cmd_producer),
3048			    tx_ring->producer, tx_ring->sw_consumer,
3049			    le32_to_cpu(*(tx_ring->hw_consumer)));
3050
3051		netdev_info(netdev, "Total desc=%d, Available desc=%d\n",
3052			    tx_ring->num_desc, qlcnic_tx_avail(tx_ring));
3053
3054		if (netif_msg_tx_err(adapter->ahw))
3055			dump_tx_ring_desc(tx_ring);
3056	}
3057
3058}
3059
3060static void qlcnic_tx_timeout(struct net_device *netdev)
3061{
3062	struct qlcnic_adapter *adapter = netdev_priv(netdev);
3063
3064	if (test_bit(__QLCNIC_RESETTING, &adapter->state))
3065		return;
3066
3067	qlcnic_dump_rings(adapter);
3068
3069	if (++adapter->tx_timeo_cnt >= QLCNIC_MAX_TX_TIMEOUTS ||
3070	    netif_msg_tx_err(adapter->ahw)) {
3071		netdev_err(netdev, "Tx timeout, reset the adapter.\n");
3072		if (qlcnic_82xx_check(adapter))
3073			adapter->need_fw_reset = 1;
3074		else if (qlcnic_83xx_check(adapter))
3075			qlcnic_83xx_idc_request_reset(adapter,
3076						      QLCNIC_FORCE_FW_DUMP_KEY);
3077	} else {
3078		netdev_err(netdev, "Tx timeout, reset adapter context.\n");
3079		adapter->ahw->reset_context = 1;
3080	}
3081}
3082
3083static struct net_device_stats *qlcnic_get_stats(struct net_device *netdev)
3084{
3085	struct qlcnic_adapter *adapter = netdev_priv(netdev);
3086	struct net_device_stats *stats = &netdev->stats;
3087
3088	if (test_bit(__QLCNIC_DEV_UP, &adapter->state))
3089		qlcnic_update_stats(adapter);
3090
3091	stats->rx_packets = adapter->stats.rx_pkts + adapter->stats.lro_pkts;
3092	stats->tx_packets = adapter->stats.xmitfinished;
3093	stats->rx_bytes = adapter->stats.rxbytes + adapter->stats.lrobytes;
3094	stats->tx_bytes = adapter->stats.txbytes;
3095	stats->rx_dropped = adapter->stats.rxdropped;
3096	stats->tx_dropped = adapter->stats.txdropped;
3097
3098	return stats;
3099}
3100
3101static irqreturn_t qlcnic_82xx_clear_legacy_intr(struct qlcnic_adapter *adapter)
3102{
3103	u32 status;
3104
3105	status = readl(adapter->isr_int_vec);
3106
3107	if (!(status & adapter->ahw->int_vec_bit))
3108		return IRQ_NONE;
3109
3110	/* check interrupt state machine, to be sure */
3111	status = readl(adapter->crb_int_state_reg);
3112	if (!ISR_LEGACY_INT_TRIGGERED(status))
3113		return IRQ_NONE;
3114
3115	writel(0xffffffff, adapter->tgt_status_reg);
3116	/* read twice to ensure write is flushed */
3117	readl(adapter->isr_int_vec);
3118	readl(adapter->isr_int_vec);
3119
3120	return IRQ_HANDLED;
3121}
3122
3123static irqreturn_t qlcnic_tmp_intr(int irq, void *data)
3124{
3125	struct qlcnic_host_sds_ring *sds_ring = data;
3126	struct qlcnic_adapter *adapter = sds_ring->adapter;
3127
3128	if (adapter->flags & QLCNIC_MSIX_ENABLED)
3129		goto done;
3130	else if (adapter->flags & QLCNIC_MSI_ENABLED) {
3131		writel(0xffffffff, adapter->tgt_status_reg);
3132		goto done;
3133	}
3134
3135	if (qlcnic_clear_legacy_intr(adapter) == IRQ_NONE)
3136		return IRQ_NONE;
3137
3138done:
3139	adapter->ahw->diag_cnt++;
3140	qlcnic_enable_sds_intr(adapter, sds_ring);
3141	return IRQ_HANDLED;
3142}
3143
3144static irqreturn_t qlcnic_intr(int irq, void *data)
3145{
3146	struct qlcnic_host_sds_ring *sds_ring = data;
3147	struct qlcnic_adapter *adapter = sds_ring->adapter;
3148
3149	if (qlcnic_clear_legacy_intr(adapter) == IRQ_NONE)
3150		return IRQ_NONE;
3151
3152	napi_schedule(&sds_ring->napi);
3153
3154	return IRQ_HANDLED;
3155}
3156
3157static irqreturn_t qlcnic_msi_intr(int irq, void *data)
3158{
3159	struct qlcnic_host_sds_ring *sds_ring = data;
3160	struct qlcnic_adapter *adapter = sds_ring->adapter;
3161
3162	/* clear interrupt */
3163	writel(0xffffffff, adapter->tgt_status_reg);
3164
3165	napi_schedule(&sds_ring->napi);
3166	return IRQ_HANDLED;
3167}
3168
3169static irqreturn_t qlcnic_msix_intr(int irq, void *data)
3170{
3171	struct qlcnic_host_sds_ring *sds_ring = data;
3172
3173	napi_schedule(&sds_ring->napi);
3174	return IRQ_HANDLED;
3175}
3176
3177static irqreturn_t qlcnic_msix_tx_intr(int irq, void *data)
3178{
3179	struct qlcnic_host_tx_ring *tx_ring = data;
3180
3181	napi_schedule(&tx_ring->napi);
3182	return IRQ_HANDLED;
3183}
3184
3185#ifdef CONFIG_NET_POLL_CONTROLLER
3186static void qlcnic_poll_controller(struct net_device *netdev)
3187{
3188	struct qlcnic_adapter *adapter = netdev_priv(netdev);
3189	struct qlcnic_host_sds_ring *sds_ring;
3190	struct qlcnic_recv_context *recv_ctx;
3191	struct qlcnic_host_tx_ring *tx_ring;
3192	int ring;
3193
3194	if (!test_bit(__QLCNIC_DEV_UP, &adapter->state))
3195		return;
3196
3197	recv_ctx = adapter->recv_ctx;
3198
3199	for (ring = 0; ring < adapter->drv_sds_rings; ring++) {
3200		sds_ring = &recv_ctx->sds_rings[ring];
3201		qlcnic_disable_sds_intr(adapter, sds_ring);
3202		napi_schedule(&sds_ring->napi);
3203	}
3204
3205	if (adapter->flags & QLCNIC_MSIX_ENABLED) {
3206		/* Only Multi-Tx queue capable devices need to
3207		 * schedule NAPI for TX rings
3208		 */
3209		if ((qlcnic_83xx_check(adapter) &&
3210		     (adapter->flags & QLCNIC_TX_INTR_SHARED)) ||
3211		    (qlcnic_82xx_check(adapter) &&
3212		     !qlcnic_check_multi_tx(adapter)))
3213			return;
3214
3215		for (ring = 0; ring < adapter->drv_tx_rings; ring++) {
3216			tx_ring = &adapter->tx_ring[ring];
3217			qlcnic_disable_tx_intr(adapter, tx_ring);
3218			napi_schedule(&tx_ring->napi);
3219		}
3220	}
3221}
3222#endif
3223
3224static void
3225qlcnic_idc_debug_info(struct qlcnic_adapter *adapter, u8 encoding)
3226{
3227	u32 val;
3228
3229	val = adapter->portnum & 0xf;
3230	val |= encoding << 7;
3231	val |= (jiffies - adapter->dev_rst_time) << 8;
3232
3233	QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DRV_SCRATCH, val);
3234	adapter->dev_rst_time = jiffies;
3235}
3236
3237static int
3238qlcnic_set_drv_state(struct qlcnic_adapter *adapter, u8 state)
3239{
3240	u32  val;
3241
3242	WARN_ON(state != QLCNIC_DEV_NEED_RESET &&
3243			state != QLCNIC_DEV_NEED_QUISCENT);
3244
3245	if (qlcnic_api_lock(adapter))
3246		return -EIO;
3247
3248	val = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DRV_STATE);
3249
3250	if (state == QLCNIC_DEV_NEED_RESET)
3251		QLC_DEV_SET_RST_RDY(val, adapter->portnum);
3252	else if (state == QLCNIC_DEV_NEED_QUISCENT)
3253		QLC_DEV_SET_QSCNT_RDY(val, adapter->portnum);
3254
3255	QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DRV_STATE, val);
3256
3257	qlcnic_api_unlock(adapter);
3258
3259	return 0;
3260}
3261
3262static int
3263qlcnic_clr_drv_state(struct qlcnic_adapter *adapter)
3264{
3265	u32  val;
3266
3267	if (qlcnic_api_lock(adapter))
3268		return -EBUSY;
3269
3270	val = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DRV_STATE);
3271	QLC_DEV_CLR_RST_QSCNT(val, adapter->portnum);
3272	QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DRV_STATE, val);
3273
3274	qlcnic_api_unlock(adapter);
3275
3276	return 0;
3277}
3278
3279void qlcnic_clr_all_drv_state(struct qlcnic_adapter *adapter, u8 failed)
3280{
3281	u32  val;
3282
3283	if (qlcnic_api_lock(adapter))
3284		goto err;
3285
3286	val = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DRV_ACTIVE);
3287	QLC_DEV_CLR_REF_CNT(val, adapter->portnum);
3288	QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DRV_ACTIVE, val);
3289
3290	if (failed) {
3291		QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DEV_STATE,
3292				    QLCNIC_DEV_FAILED);
3293		dev_info(&adapter->pdev->dev,
3294				"Device state set to Failed. Please Reboot\n");
3295	} else if (!(val & 0x11111111))
3296		QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DEV_STATE,
3297				    QLCNIC_DEV_COLD);
3298
3299	val = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DRV_STATE);
3300	QLC_DEV_CLR_RST_QSCNT(val, adapter->portnum);
3301	QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DRV_STATE, val);
3302
3303	qlcnic_api_unlock(adapter);
3304err:
3305	adapter->fw_fail_cnt = 0;
3306	adapter->flags &= ~QLCNIC_FW_HANG;
3307	clear_bit(__QLCNIC_START_FW, &adapter->state);
3308	clear_bit(__QLCNIC_RESETTING, &adapter->state);
3309}
3310
3311/* Grab api lock, before checking state */
3312static int
3313qlcnic_check_drv_state(struct qlcnic_adapter *adapter)
3314{
3315	int act, state, active_mask;
3316	struct qlcnic_hardware_context *ahw = adapter->ahw;
3317
3318	state = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DRV_STATE);
3319	act = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DRV_ACTIVE);
3320
3321	if (adapter->flags & QLCNIC_FW_RESET_OWNER) {
3322		active_mask = (~(1 << (ahw->pci_func * 4)));
3323		act = act & active_mask;
3324	}
3325
3326	if (((state & 0x11111111) == (act & 0x11111111)) ||
3327			((act & 0x11111111) == ((state >> 1) & 0x11111111)))
3328		return 0;
3329	else
3330		return 1;
3331}
3332
3333static int qlcnic_check_idc_ver(struct qlcnic_adapter *adapter)
3334{
3335	u32 val = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DRV_IDC_VER);
3336
3337	if (val != QLCNIC_DRV_IDC_VER) {
3338		dev_warn(&adapter->pdev->dev, "IDC Version mismatch, driver's"
3339			" idc ver = %x; reqd = %x\n", QLCNIC_DRV_IDC_VER, val);
3340	}
3341
3342	return 0;
3343}
3344
3345static int
3346qlcnic_can_start_firmware(struct qlcnic_adapter *adapter)
3347{
3348	u32 val, prev_state;
3349	u8 dev_init_timeo = adapter->dev_init_timeo;
3350	u8 portnum = adapter->portnum;
3351	u8 ret;
3352
3353	if (test_and_clear_bit(__QLCNIC_START_FW, &adapter->state))
3354		return 1;
3355
3356	if (qlcnic_api_lock(adapter))
3357		return -1;
3358
3359	val = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DRV_ACTIVE);
3360	if (!(val & (1 << (portnum * 4)))) {
3361		QLC_DEV_SET_REF_CNT(val, portnum);
3362		QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DRV_ACTIVE, val);
3363	}
3364
3365	prev_state = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DEV_STATE);
3366	QLCDB(adapter, HW, "Device state = %u\n", prev_state);
3367
3368	switch (prev_state) {
3369	case QLCNIC_DEV_COLD:
3370		QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DEV_STATE,
3371				    QLCNIC_DEV_INITIALIZING);
3372		QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DRV_IDC_VER,
3373				    QLCNIC_DRV_IDC_VER);
3374		qlcnic_idc_debug_info(adapter, 0);
3375		qlcnic_api_unlock(adapter);
3376		return 1;
3377
3378	case QLCNIC_DEV_READY:
3379		ret = qlcnic_check_idc_ver(adapter);
3380		qlcnic_api_unlock(adapter);
3381		return ret;
3382
3383	case QLCNIC_DEV_NEED_RESET:
3384		val = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DRV_STATE);
3385		QLC_DEV_SET_RST_RDY(val, portnum);
3386		QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DRV_STATE, val);
3387		break;
3388
3389	case QLCNIC_DEV_NEED_QUISCENT:
3390		val = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DRV_STATE);
3391		QLC_DEV_SET_QSCNT_RDY(val, portnum);
3392		QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DRV_STATE, val);
3393		break;
3394
3395	case QLCNIC_DEV_FAILED:
3396		dev_err(&adapter->pdev->dev, "Device in failed state.\n");
3397		qlcnic_api_unlock(adapter);
3398		return -1;
3399
3400	case QLCNIC_DEV_INITIALIZING:
3401	case QLCNIC_DEV_QUISCENT:
3402		break;
3403	}
3404
3405	qlcnic_api_unlock(adapter);
3406
3407	do {
3408		msleep(1000);
3409		prev_state = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DEV_STATE);
3410
3411		if (prev_state == QLCNIC_DEV_QUISCENT)
3412			continue;
3413	} while ((prev_state != QLCNIC_DEV_READY) && --dev_init_timeo);
3414
3415	if (!dev_init_timeo) {
3416		dev_err(&adapter->pdev->dev,
3417			"Waiting for device to initialize timeout\n");
3418		return -1;
3419	}
3420
3421	if (qlcnic_api_lock(adapter))
3422		return -1;
3423
3424	val = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DRV_STATE);
3425	QLC_DEV_CLR_RST_QSCNT(val, portnum);
3426	QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DRV_STATE, val);
3427
3428	ret = qlcnic_check_idc_ver(adapter);
3429	qlcnic_api_unlock(adapter);
3430
3431	return ret;
3432}
3433
3434static void
3435qlcnic_fwinit_work(struct work_struct *work)
3436{
3437	struct qlcnic_adapter *adapter = container_of(work,
3438			struct qlcnic_adapter, fw_work.work);
3439	u32 dev_state = 0xf;
3440	u32 val;
3441
3442	if (qlcnic_api_lock(adapter))
3443		goto err_ret;
3444
3445	dev_state = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DEV_STATE);
3446	if (dev_state == QLCNIC_DEV_QUISCENT ||
3447	    dev_state == QLCNIC_DEV_NEED_QUISCENT) {
3448		qlcnic_api_unlock(adapter);
3449		qlcnic_schedule_work(adapter, qlcnic_fwinit_work,
3450						FW_POLL_DELAY * 2);
3451		return;
3452	}
3453
3454	if (adapter->ahw->op_mode == QLCNIC_NON_PRIV_FUNC) {
3455		qlcnic_api_unlock(adapter);
3456		goto wait_npar;
3457	}
3458
3459	if (dev_state == QLCNIC_DEV_INITIALIZING ||
3460	    dev_state == QLCNIC_DEV_READY) {
3461		dev_info(&adapter->pdev->dev, "Detected state change from "
3462				"DEV_NEED_RESET, skipping ack check\n");
3463		goto skip_ack_check;
3464	}
3465
3466	if (adapter->fw_wait_cnt++ > adapter->reset_ack_timeo) {
3467		dev_info(&adapter->pdev->dev, "Reset:Failed to get ack %d sec\n",
3468					adapter->reset_ack_timeo);
3469		goto skip_ack_check;
3470	}
3471
3472	if (!qlcnic_check_drv_state(adapter)) {
3473skip_ack_check:
3474		dev_state = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DEV_STATE);
3475
3476		if (dev_state == QLCNIC_DEV_NEED_RESET) {
3477			QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DEV_STATE,
3478					    QLCNIC_DEV_INITIALIZING);
3479			set_bit(__QLCNIC_START_FW, &adapter->state);
3480			QLCDB(adapter, DRV, "Restarting fw\n");
3481			qlcnic_idc_debug_info(adapter, 0);
3482			val = QLC_SHARED_REG_RD32(adapter,
3483						  QLCNIC_CRB_DRV_STATE);
3484			QLC_DEV_SET_RST_RDY(val, adapter->portnum);
3485			QLC_SHARED_REG_WR32(adapter,
3486					    QLCNIC_CRB_DRV_STATE, val);
3487		}
3488
3489		qlcnic_api_unlock(adapter);
3490
3491		rtnl_lock();
3492		if (qlcnic_check_fw_dump_state(adapter) &&
3493		    (adapter->flags & QLCNIC_FW_RESET_OWNER)) {
3494			QLCDB(adapter, DRV, "Take FW dump\n");
3495			qlcnic_dump_fw(adapter);
3496			adapter->flags |= QLCNIC_FW_HANG;
3497		}
3498		rtnl_unlock();
3499
3500		adapter->flags &= ~QLCNIC_FW_RESET_OWNER;
3501		if (!adapter->nic_ops->start_firmware(adapter)) {
3502			qlcnic_schedule_work(adapter, qlcnic_attach_work, 0);
3503			adapter->fw_wait_cnt = 0;
3504			return;
3505		}
3506		goto err_ret;
3507	}
3508
3509	qlcnic_api_unlock(adapter);
3510
3511wait_npar:
3512	dev_state = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DEV_STATE);
3513	QLCDB(adapter, HW, "Func waiting: Device state=%u\n", dev_state);
3514
3515	switch (dev_state) {
3516	case QLCNIC_DEV_READY:
3517		if (!qlcnic_start_firmware(adapter)) {
3518			qlcnic_schedule_work(adapter, qlcnic_attach_work, 0);
3519			adapter->fw_wait_cnt = 0;
3520			return;
3521		}
3522	case QLCNIC_DEV_FAILED:
3523		break;
3524	default:
3525		qlcnic_schedule_work(adapter,
3526			qlcnic_fwinit_work, FW_POLL_DELAY);
3527		return;
3528	}
3529
3530err_ret:
3531	dev_err(&adapter->pdev->dev, "Fwinit work failed state=%u "
3532		"fw_wait_cnt=%u\n", dev_state, adapter->fw_wait_cnt);
3533	netif_device_attach(adapter->netdev);
3534	qlcnic_clr_all_drv_state(adapter, 0);
3535}
3536
3537static void
3538qlcnic_detach_work(struct work_struct *work)
3539{
3540	struct qlcnic_adapter *adapter = container_of(work,
3541			struct qlcnic_adapter, fw_work.work);
3542	struct net_device *netdev = adapter->netdev;
3543	u32 status;
3544
3545	netif_device_detach(netdev);
3546
3547	/* Dont grab rtnl lock during Quiscent mode */
3548	if (adapter->dev_state == QLCNIC_DEV_NEED_QUISCENT) {
3549		if (netif_running(netdev))
3550			__qlcnic_down(adapter, netdev);
3551	} else
3552		qlcnic_down(adapter, netdev);
3553
3554	status = QLC_SHARED_REG_RD32(adapter, QLCNIC_PEG_HALT_STATUS1);
3555
3556	if (status & QLCNIC_RCODE_FATAL_ERROR) {
3557		dev_err(&adapter->pdev->dev,
3558			"Detaching the device: peg halt status1=0x%x\n",
3559					status);
3560
3561		if (QLCNIC_FWERROR_CODE(status) == QLCNIC_FWERROR_FAN_FAILURE) {
3562			dev_err(&adapter->pdev->dev,
3563			"On board active cooling fan failed. "
3564				"Device has been halted.\n");
3565			dev_err(&adapter->pdev->dev,
3566				"Replace the adapter.\n");
3567		}
3568
3569		goto err_ret;
3570	}
3571
3572	if (adapter->ahw->temp == QLCNIC_TEMP_PANIC) {
3573		dev_err(&adapter->pdev->dev, "Detaching the device: temp=%d\n",
3574			adapter->ahw->temp);
3575		goto err_ret;
3576	}
3577
3578	/* Dont ack if this instance is the reset owner */
3579	if (!(adapter->flags & QLCNIC_FW_RESET_OWNER)) {
3580		if (qlcnic_set_drv_state(adapter, adapter->dev_state)) {
3581			dev_err(&adapter->pdev->dev,
3582				"Failed to set driver state,"
3583					"detaching the device.\n");
3584			goto err_ret;
3585		}
3586	}
3587
3588	adapter->fw_wait_cnt = 0;
3589
3590	qlcnic_schedule_work(adapter, qlcnic_fwinit_work, FW_POLL_DELAY);
3591
3592	return;
3593
3594err_ret:
3595	netif_device_attach(netdev);
3596	qlcnic_clr_all_drv_state(adapter, 1);
3597}
3598
3599/*Transit NPAR state to NON Operational */
3600static void
3601qlcnic_set_npar_non_operational(struct qlcnic_adapter *adapter)
3602{
3603	u32 state;
3604
3605	state = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DEV_NPAR_STATE);
3606	if (state == QLCNIC_DEV_NPAR_NON_OPER)
3607		return;
3608
3609	if (qlcnic_api_lock(adapter))
3610		return;
3611	QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DEV_NPAR_STATE,
3612			    QLCNIC_DEV_NPAR_NON_OPER);
3613	qlcnic_api_unlock(adapter);
3614}
3615
3616static void qlcnic_82xx_dev_request_reset(struct qlcnic_adapter *adapter,
3617					  u32 key)
3618{
3619	u32 state, xg_val = 0, gb_val = 0;
3620
3621	qlcnic_xg_set_xg0_mask(xg_val);
3622	qlcnic_xg_set_xg1_mask(xg_val);
3623	QLCWR32(adapter, QLCNIC_NIU_XG_PAUSE_CTL, xg_val);
3624	qlcnic_gb_set_gb0_mask(gb_val);
3625	qlcnic_gb_set_gb1_mask(gb_val);
3626	qlcnic_gb_set_gb2_mask(gb_val);
3627	qlcnic_gb_set_gb3_mask(gb_val);
3628	QLCWR32(adapter, QLCNIC_NIU_GB_PAUSE_CTL, gb_val);
3629	dev_info(&adapter->pdev->dev, "Pause control frames disabled"
3630				" on all ports\n");
3631	adapter->need_fw_reset = 1;
3632
3633	if (qlcnic_api_lock(adapter))
3634		return;
3635
3636	state = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DEV_STATE);
3637
3638	if (test_bit(__QLCNIC_MAINTENANCE_MODE, &adapter->state)) {
3639		netdev_err(adapter->netdev, "%s: Device is in non-operational state\n",
3640			   __func__);
3641		qlcnic_api_unlock(adapter);
3642
3643		return;
3644	}
3645
3646	if (state == QLCNIC_DEV_READY) {
3647		QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DEV_STATE,
3648				    QLCNIC_DEV_NEED_RESET);
3649		adapter->flags |= QLCNIC_FW_RESET_OWNER;
3650		QLCDB(adapter, DRV, "NEED_RESET state set\n");
3651		qlcnic_idc_debug_info(adapter, 0);
3652	}
3653
3654	QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DEV_NPAR_STATE,
3655			    QLCNIC_DEV_NPAR_NON_OPER);
3656	qlcnic_api_unlock(adapter);
3657}
3658
3659/* Transit to NPAR READY state from NPAR NOT READY state */
3660static void
3661qlcnic_dev_set_npar_ready(struct qlcnic_adapter *adapter)
3662{
3663	if (qlcnic_api_lock(adapter))
3664		return;
3665
3666	QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DEV_NPAR_STATE,
3667			    QLCNIC_DEV_NPAR_OPER);
3668	QLCDB(adapter, DRV, "NPAR operational state set\n");
3669
3670	qlcnic_api_unlock(adapter);
3671}
3672
3673void qlcnic_schedule_work(struct qlcnic_adapter *adapter,
3674			  work_func_t func, int delay)
3675{
3676	if (test_bit(__QLCNIC_AER, &adapter->state))
3677		return;
3678
3679	INIT_DELAYED_WORK(&adapter->fw_work, func);
3680	queue_delayed_work(adapter->qlcnic_wq, &adapter->fw_work,
3681			   round_jiffies_relative(delay));
3682}
3683
3684static void
3685qlcnic_attach_work(struct work_struct *work)
3686{
3687	struct qlcnic_adapter *adapter = container_of(work,
3688				struct qlcnic_adapter, fw_work.work);
3689	struct net_device *netdev = adapter->netdev;
3690	u32 npar_state;
3691
3692	if (adapter->ahw->op_mode != QLCNIC_MGMT_FUNC) {
3693		npar_state = QLC_SHARED_REG_RD32(adapter,
3694						 QLCNIC_CRB_DEV_NPAR_STATE);
3695		if (adapter->fw_wait_cnt++ > QLCNIC_DEV_NPAR_OPER_TIMEO)
3696			qlcnic_clr_all_drv_state(adapter, 0);
3697		else if (npar_state != QLCNIC_DEV_NPAR_OPER)
3698			qlcnic_schedule_work(adapter, qlcnic_attach_work,
3699							FW_POLL_DELAY);
3700		else
3701			goto attach;
3702		QLCDB(adapter, DRV, "Waiting for NPAR state to operational\n");
3703		return;
3704	}
3705attach:
3706	qlcnic_dcb_get_info(adapter->dcb);
3707
3708	if (netif_running(netdev)) {
3709		if (qlcnic_up(adapter, netdev))
3710			goto done;
3711
3712		qlcnic_restore_indev_addr(netdev, NETDEV_UP);
3713	}
3714
3715done:
3716	netif_device_attach(netdev);
3717	adapter->fw_fail_cnt = 0;
3718	adapter->flags &= ~QLCNIC_FW_HANG;
3719	clear_bit(__QLCNIC_RESETTING, &adapter->state);
3720	if (adapter->portnum == 0)
3721		qlcnic_set_drv_version(adapter);
3722
3723	if (!qlcnic_clr_drv_state(adapter))
3724		qlcnic_schedule_work(adapter, qlcnic_fw_poll_work,
3725							FW_POLL_DELAY);
3726}
3727
3728static int
3729qlcnic_check_health(struct qlcnic_adapter *adapter)
3730{
3731	struct qlcnic_hardware_context *ahw = adapter->ahw;
3732	struct qlcnic_fw_dump *fw_dump = &ahw->fw_dump;
3733	u32 state = 0, heartbeat;
3734	u32 peg_status;
3735	int err = 0;
3736
3737	if (qlcnic_check_temp(adapter))
3738		goto detach;
3739
3740	if (adapter->need_fw_reset)
3741		qlcnic_dev_request_reset(adapter, 0);
3742
3743	state = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DEV_STATE);
3744	if (state == QLCNIC_DEV_NEED_RESET) {
3745		qlcnic_set_npar_non_operational(adapter);
3746		adapter->need_fw_reset = 1;
3747	} else if (state == QLCNIC_DEV_NEED_QUISCENT)
3748		goto detach;
3749
3750	heartbeat = QLC_SHARED_REG_RD32(adapter, QLCNIC_PEG_ALIVE_COUNTER);
3751	if (heartbeat != adapter->heartbeat) {
3752		adapter->heartbeat = heartbeat;
3753		adapter->fw_fail_cnt = 0;
3754		if (adapter->need_fw_reset)
3755			goto detach;
3756
3757		if (ahw->reset_context && qlcnic_auto_fw_reset)
3758			qlcnic_reset_hw_context(adapter);
3759
3760		return 0;
3761	}
3762
3763	if (++adapter->fw_fail_cnt < FW_FAIL_THRESH)
3764		return 0;
3765
3766	adapter->flags |= QLCNIC_FW_HANG;
3767
3768	qlcnic_dev_request_reset(adapter, 0);
3769
3770	if (qlcnic_auto_fw_reset)
3771		clear_bit(__QLCNIC_FW_ATTACHED, &adapter->state);
3772
3773	dev_err(&adapter->pdev->dev, "firmware hang detected\n");
3774	peg_status = QLC_SHARED_REG_RD32(adapter, QLCNIC_PEG_HALT_STATUS1);
3775	dev_err(&adapter->pdev->dev, "Dumping hw/fw registers\n"
3776			"PEG_HALT_STATUS1: 0x%x, PEG_HALT_STATUS2: 0x%x,\n"
3777			"PEG_NET_0_PC: 0x%x, PEG_NET_1_PC: 0x%x,\n"
3778			"PEG_NET_2_PC: 0x%x, PEG_NET_3_PC: 0x%x,\n"
3779			"PEG_NET_4_PC: 0x%x\n",
3780			peg_status,
3781			QLC_SHARED_REG_RD32(adapter, QLCNIC_PEG_HALT_STATUS2),
3782			QLCRD32(adapter, QLCNIC_CRB_PEG_NET_0 + 0x3c, &err),
3783			QLCRD32(adapter, QLCNIC_CRB_PEG_NET_1 + 0x3c, &err),
3784			QLCRD32(adapter, QLCNIC_CRB_PEG_NET_2 + 0x3c, &err),
3785			QLCRD32(adapter, QLCNIC_CRB_PEG_NET_3 + 0x3c, &err),
3786			QLCRD32(adapter, QLCNIC_CRB_PEG_NET_4 + 0x3c, &err));
3787	if (QLCNIC_FWERROR_CODE(peg_status) == 0x67)
3788		dev_err(&adapter->pdev->dev,
3789			"Firmware aborted with error code 0x00006700. "
3790				"Device is being reset.\n");
3791detach:
3792	adapter->dev_state = (state == QLCNIC_DEV_NEED_QUISCENT) ? state :
3793		QLCNIC_DEV_NEED_RESET;
3794
3795	if (qlcnic_auto_fw_reset && !test_and_set_bit(__QLCNIC_RESETTING,
3796						      &adapter->state)) {
3797
3798		qlcnic_schedule_work(adapter, qlcnic_detach_work, 0);
3799		QLCDB(adapter, DRV, "fw recovery scheduled.\n");
3800	} else if (!qlcnic_auto_fw_reset && fw_dump->enable &&
3801		   adapter->flags & QLCNIC_FW_RESET_OWNER) {
3802		qlcnic_dump_fw(adapter);
3803	}
3804
3805	return 1;
3806}
3807
3808void qlcnic_fw_poll_work(struct work_struct *work)
3809{
3810	struct qlcnic_adapter *adapter = container_of(work,
3811				struct qlcnic_adapter, fw_work.work);
3812
3813	if (test_bit(__QLCNIC_RESETTING, &adapter->state))
3814		goto reschedule;
3815
3816
3817	if (qlcnic_check_health(adapter))
3818		return;
3819
3820	if (adapter->fhash.fnum)
3821		qlcnic_prune_lb_filters(adapter);
3822
3823reschedule:
3824	qlcnic_schedule_work(adapter, qlcnic_fw_poll_work, FW_POLL_DELAY);
3825}
3826
3827static int qlcnic_is_first_func(struct pci_dev *pdev)
3828{
3829	struct pci_dev *oth_pdev;
3830	int val = pdev->devfn;
3831
3832	while (val-- > 0) {
3833		oth_pdev = pci_get_domain_bus_and_slot(pci_domain_nr
3834			(pdev->bus), pdev->bus->number,
3835			PCI_DEVFN(PCI_SLOT(pdev->devfn), val));
3836		if (!oth_pdev)
3837			continue;
3838
3839		if (oth_pdev->current_state != PCI_D3cold) {
3840			pci_dev_put(oth_pdev);
3841			return 0;
3842		}
3843		pci_dev_put(oth_pdev);
3844	}
3845	return 1;
3846}
3847
3848static int qlcnic_attach_func(struct pci_dev *pdev)
3849{
3850	int err, first_func;
3851	struct qlcnic_adapter *adapter = pci_get_drvdata(pdev);
3852	struct net_device *netdev = adapter->netdev;
3853
3854	pdev->error_state = pci_channel_io_normal;
3855
3856	err = pci_enable_device(pdev);
3857	if (err)
3858		return err;
3859
3860	pci_set_master(pdev);
3861	pci_restore_state(pdev);
3862
3863	first_func = qlcnic_is_first_func(pdev);
3864
3865	if (qlcnic_api_lock(adapter))
3866		return -EINVAL;
3867
3868	if (adapter->ahw->op_mode != QLCNIC_NON_PRIV_FUNC && first_func) {
3869		adapter->need_fw_reset = 1;
3870		set_bit(__QLCNIC_START_FW, &adapter->state);
3871		QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DEV_STATE,
3872				    QLCNIC_DEV_INITIALIZING);
3873		QLCDB(adapter, DRV, "Restarting fw\n");
3874	}
3875	qlcnic_api_unlock(adapter);
3876
3877	err = qlcnic_start_firmware(adapter);
3878	if (err)
3879		return err;
3880
3881	qlcnic_clr_drv_state(adapter);
3882	kfree(adapter->msix_entries);
3883	adapter->msix_entries = NULL;
3884	err = qlcnic_setup_intr(adapter);
3885
3886	if (err) {
3887		kfree(adapter->msix_entries);
3888		netdev_err(netdev, "failed to setup interrupt\n");
3889		return err;
3890	}
3891
3892	if (netif_running(netdev)) {
3893		err = qlcnic_attach(adapter);
3894		if (err) {
3895			qlcnic_clr_all_drv_state(adapter, 1);
3896			clear_bit(__QLCNIC_AER, &adapter->state);
3897			netif_device_attach(netdev);
3898			return err;
3899		}
3900
3901		err = qlcnic_up(adapter, netdev);
3902		if (err)
3903			goto done;
3904
3905		qlcnic_restore_indev_addr(netdev, NETDEV_UP);
3906	}
3907 done:
3908	netif_device_attach(netdev);
3909	return err;
3910}
3911
3912static pci_ers_result_t qlcnic_82xx_io_error_detected(struct pci_dev *pdev,
3913						      pci_channel_state_t state)
3914{
3915	struct qlcnic_adapter *adapter = pci_get_drvdata(pdev);
3916	struct net_device *netdev = adapter->netdev;
3917
3918	if (state == pci_channel_io_perm_failure)
3919		return PCI_ERS_RESULT_DISCONNECT;
3920
3921	if (state == pci_channel_io_normal)
3922		return PCI_ERS_RESULT_RECOVERED;
3923
3924	set_bit(__QLCNIC_AER, &adapter->state);
3925	netif_device_detach(netdev);
3926
3927	cancel_delayed_work_sync(&adapter->fw_work);
3928
3929	if (netif_running(netdev))
3930		qlcnic_down(adapter, netdev);
3931
3932	qlcnic_detach(adapter);
3933	qlcnic_teardown_intr(adapter);
3934
3935	clear_bit(__QLCNIC_RESETTING, &adapter->state);
3936
3937	pci_save_state(pdev);
3938	pci_disable_device(pdev);
3939
3940	return PCI_ERS_RESULT_NEED_RESET;
3941}
3942
3943static pci_ers_result_t qlcnic_82xx_io_slot_reset(struct pci_dev *pdev)
3944{
3945	return qlcnic_attach_func(pdev) ? PCI_ERS_RESULT_DISCONNECT :
3946				PCI_ERS_RESULT_RECOVERED;
3947}
3948
3949static void qlcnic_82xx_io_resume(struct pci_dev *pdev)
3950{
3951	u32 state;
3952	struct qlcnic_adapter *adapter = pci_get_drvdata(pdev);
3953
3954	pci_cleanup_aer_uncorrect_error_status(pdev);
3955	state = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DEV_STATE);
3956	if (state == QLCNIC_DEV_READY && test_and_clear_bit(__QLCNIC_AER,
3957							    &adapter->state))
3958		qlcnic_schedule_work(adapter, qlcnic_fw_poll_work,
3959				     FW_POLL_DELAY);
3960}
3961
3962static pci_ers_result_t qlcnic_io_error_detected(struct pci_dev *pdev,
3963						 pci_channel_state_t state)
3964{
3965	struct qlcnic_adapter *adapter = pci_get_drvdata(pdev);
3966	struct qlcnic_hardware_ops *hw_ops = adapter->ahw->hw_ops;
3967
3968	if (hw_ops->io_error_detected) {
3969		return hw_ops->io_error_detected(pdev, state);
3970	} else {
3971		dev_err(&pdev->dev, "AER error_detected handler not registered.\n");
3972		return PCI_ERS_RESULT_DISCONNECT;
3973	}
3974}
3975
3976static pci_ers_result_t qlcnic_io_slot_reset(struct pci_dev *pdev)
3977{
3978	struct qlcnic_adapter *adapter = pci_get_drvdata(pdev);
3979	struct qlcnic_hardware_ops *hw_ops = adapter->ahw->hw_ops;
3980
3981	if (hw_ops->io_slot_reset) {
3982		return hw_ops->io_slot_reset(pdev);
3983	} else {
3984		dev_err(&pdev->dev, "AER slot_reset handler not registered.\n");
3985		return PCI_ERS_RESULT_DISCONNECT;
3986	}
3987}
3988
3989static void qlcnic_io_resume(struct pci_dev *pdev)
3990{
3991	struct qlcnic_adapter *adapter = pci_get_drvdata(pdev);
3992	struct qlcnic_hardware_ops *hw_ops = adapter->ahw->hw_ops;
3993
3994	if (hw_ops->io_resume)
3995		hw_ops->io_resume(pdev);
3996	else
3997		dev_err(&pdev->dev, "AER resume handler not registered.\n");
3998}
3999
4000
4001static int
4002qlcnicvf_start_firmware(struct qlcnic_adapter *adapter)
4003{
4004	int err;
4005
4006	err = qlcnic_can_start_firmware(adapter);
4007	if (err)
4008		return err;
4009
4010	err = qlcnic_check_npar_opertional(adapter);
4011	if (err)
4012		return err;
4013
4014	err = qlcnic_initialize_nic(adapter);
4015	if (err)
4016		return err;
4017
4018	qlcnic_check_options(adapter);
4019
4020	err = qlcnic_set_eswitch_port_config(adapter);
4021	if (err)
4022		return err;
4023
4024	adapter->need_fw_reset = 0;
4025
4026	return err;
4027}
4028
4029int qlcnic_validate_rings(struct qlcnic_adapter *adapter, __u32 ring_cnt,
4030			  int queue_type)
4031{
4032	struct net_device *netdev = adapter->netdev;
4033	u8 max_hw_rings = 0;
4034	char buf[8];
4035	int cur_rings;
4036
4037	if (queue_type == QLCNIC_RX_QUEUE) {
4038		max_hw_rings = adapter->max_sds_rings;
4039		cur_rings = adapter->drv_sds_rings;
4040		strcpy(buf, "SDS");
4041	} else if (queue_type == QLCNIC_TX_QUEUE) {
4042		max_hw_rings = adapter->max_tx_rings;
4043		cur_rings = adapter->drv_tx_rings;
4044		strcpy(buf, "Tx");
4045	}
4046
4047	if (!is_power_of_2(ring_cnt)) {
4048		netdev_err(netdev, "%s rings value should be a power of 2\n",
4049			   buf);
4050		return -EINVAL;
4051	}
4052
4053	if (qlcnic_82xx_check(adapter) && (queue_type == QLCNIC_TX_QUEUE) &&
4054	    !qlcnic_check_multi_tx(adapter)) {
4055			netdev_err(netdev, "No Multi Tx queue support\n");
4056			return -EINVAL;
4057	}
4058
4059	if (ring_cnt > num_online_cpus()) {
4060		netdev_err(netdev,
4061			   "%s value[%u] should not be higher than, number of online CPUs\n",
4062			   buf, num_online_cpus());
4063		return -EINVAL;
4064	}
4065
4066	return 0;
4067}
4068
4069int qlcnic_setup_rings(struct qlcnic_adapter *adapter)
4070{
4071	struct net_device *netdev = adapter->netdev;
4072	u8 tx_rings, rx_rings;
4073	int err;
4074
4075	if (test_bit(__QLCNIC_RESETTING, &adapter->state))
4076		return -EBUSY;
4077
4078	tx_rings = adapter->drv_tss_rings;
4079	rx_rings = adapter->drv_rss_rings;
4080
4081	netif_device_detach(netdev);
4082
4083	err = qlcnic_set_real_num_queues(adapter, tx_rings, rx_rings);
4084	if (err)
4085		goto done;
4086
4087	if (netif_running(netdev))
4088		__qlcnic_down(adapter, netdev);
4089
4090	qlcnic_detach(adapter);
4091
4092	if (qlcnic_83xx_check(adapter)) {
4093		qlcnic_83xx_free_mbx_intr(adapter);
4094		qlcnic_83xx_enable_mbx_poll(adapter);
4095	}
4096
4097	qlcnic_teardown_intr(adapter);
4098
4099	err = qlcnic_setup_intr(adapter);
4100	if (err) {
4101		kfree(adapter->msix_entries);
4102		netdev_err(netdev, "failed to setup interrupt\n");
4103		return err;
4104	}
4105
4106	/* Check if we need to update real_num_{tx|rx}_queues because
4107	 * qlcnic_setup_intr() may change Tx/Rx rings size
4108	 */
4109	if ((tx_rings != adapter->drv_tx_rings) ||
4110	    (rx_rings != adapter->drv_sds_rings)) {
4111		err = qlcnic_set_real_num_queues(adapter,
4112						 adapter->drv_tx_rings,
4113						 adapter->drv_sds_rings);
4114		if (err)
4115			goto done;
4116	}
4117
4118	if (qlcnic_83xx_check(adapter)) {
4119		qlcnic_83xx_initialize_nic(adapter, 1);
4120		err = qlcnic_83xx_setup_mbx_intr(adapter);
4121		qlcnic_83xx_disable_mbx_poll(adapter);
4122		if (err) {
4123			dev_err(&adapter->pdev->dev,
4124				"failed to setup mbx interrupt\n");
4125			goto done;
4126		}
4127	}
4128
4129	if (netif_running(netdev)) {
4130		err = qlcnic_attach(adapter);
4131		if (err)
4132			goto done;
4133		err = __qlcnic_up(adapter, netdev);
4134		if (err)
4135			goto done;
4136		qlcnic_restore_indev_addr(netdev, NETDEV_UP);
4137	}
4138done:
4139	netif_device_attach(netdev);
4140	clear_bit(__QLCNIC_RESETTING, &adapter->state);
4141	return err;
4142}
4143
4144#ifdef CONFIG_INET
4145
4146#define is_qlcnic_netdev(dev) (dev->netdev_ops == &qlcnic_netdev_ops)
4147
4148static void
4149qlcnic_config_indev_addr(struct qlcnic_adapter *adapter,
4150			struct net_device *dev, unsigned long event)
4151{
4152	struct in_device *indev;
4153
4154	indev = in_dev_get(dev);
4155	if (!indev)
4156		return;
4157
4158	for_ifa(indev) {
4159		switch (event) {
4160		case NETDEV_UP:
4161			qlcnic_config_ipaddr(adapter,
4162					ifa->ifa_address, QLCNIC_IP_UP);
4163			break;
4164		case NETDEV_DOWN:
4165			qlcnic_config_ipaddr(adapter,
4166					ifa->ifa_address, QLCNIC_IP_DOWN);
4167			break;
4168		default:
4169			break;
4170		}
4171	} endfor_ifa(indev);
4172
4173	in_dev_put(indev);
4174}
4175
4176void qlcnic_restore_indev_addr(struct net_device *netdev, unsigned long event)
4177{
4178	struct qlcnic_adapter *adapter = netdev_priv(netdev);
4179	struct net_device *dev;
4180	u16 vid;
4181
4182	qlcnic_config_indev_addr(adapter, netdev, event);
4183
4184	rcu_read_lock();
4185	for_each_set_bit(vid, adapter->vlans, VLAN_N_VID) {
4186		dev = __vlan_find_dev_deep_rcu(netdev, htons(ETH_P_8021Q), vid);
4187		if (!dev)
4188			continue;
4189		qlcnic_config_indev_addr(adapter, dev, event);
4190	}
4191	rcu_read_unlock();
4192}
4193
4194static int qlcnic_netdev_event(struct notifier_block *this,
4195				 unsigned long event, void *ptr)
4196{
4197	struct qlcnic_adapter *adapter;
4198	struct net_device *dev = netdev_notifier_info_to_dev(ptr);
4199
4200recheck:
4201	if (dev == NULL)
4202		goto done;
4203
4204	if (dev->priv_flags & IFF_802_1Q_VLAN) {
4205		dev = vlan_dev_real_dev(dev);
4206		goto recheck;
4207	}
4208
4209	if (!is_qlcnic_netdev(dev))
4210		goto done;
4211
4212	adapter = netdev_priv(dev);
4213
4214	if (!adapter)
4215		goto done;
4216
4217	if (!test_bit(__QLCNIC_DEV_UP, &adapter->state))
4218		goto done;
4219
4220	qlcnic_config_indev_addr(adapter, dev, event);
4221done:
4222	return NOTIFY_DONE;
4223}
4224
4225static int
4226qlcnic_inetaddr_event(struct notifier_block *this,
4227		unsigned long event, void *ptr)
4228{
4229	struct qlcnic_adapter *adapter;
4230	struct net_device *dev;
4231
4232	struct in_ifaddr *ifa = (struct in_ifaddr *)ptr;
4233
4234	dev = ifa->ifa_dev ? ifa->ifa_dev->dev : NULL;
4235
4236recheck:
4237	if (dev == NULL)
4238		goto done;
4239
4240	if (dev->priv_flags & IFF_802_1Q_VLAN) {
4241		dev = vlan_dev_real_dev(dev);
4242		goto recheck;
4243	}
4244
4245	if (!is_qlcnic_netdev(dev))
4246		goto done;
4247
4248	adapter = netdev_priv(dev);
4249
4250	if (!adapter)
4251		goto done;
4252
4253	if (!test_bit(__QLCNIC_DEV_UP, &adapter->state))
4254		goto done;
4255
4256	switch (event) {
4257	case NETDEV_UP:
4258		qlcnic_config_ipaddr(adapter, ifa->ifa_address, QLCNIC_IP_UP);
4259
4260		break;
4261	case NETDEV_DOWN:
4262		qlcnic_config_ipaddr(adapter, ifa->ifa_address, QLCNIC_IP_DOWN);
4263
4264		break;
4265	default:
4266		break;
4267	}
4268
4269done:
4270	return NOTIFY_DONE;
4271}
4272
4273static struct notifier_block	qlcnic_netdev_cb = {
4274	.notifier_call = qlcnic_netdev_event,
4275};
4276
4277static struct notifier_block qlcnic_inetaddr_cb = {
4278	.notifier_call = qlcnic_inetaddr_event,
4279};
4280#else
4281void qlcnic_restore_indev_addr(struct net_device *dev, unsigned long event)
4282{ }
4283#endif
4284static const struct pci_error_handlers qlcnic_err_handler = {
4285	.error_detected = qlcnic_io_error_detected,
4286	.slot_reset = qlcnic_io_slot_reset,
4287	.resume = qlcnic_io_resume,
4288};
4289
4290static struct pci_driver qlcnic_driver = {
4291	.name = qlcnic_driver_name,
4292	.id_table = qlcnic_pci_tbl,
4293	.probe = qlcnic_probe,
4294	.remove = qlcnic_remove,
4295#ifdef CONFIG_PM
4296	.suspend = qlcnic_suspend,
4297	.resume = qlcnic_resume,
4298#endif
4299	.shutdown = qlcnic_shutdown,
4300	.err_handler = &qlcnic_err_handler,
4301#ifdef CONFIG_QLCNIC_SRIOV
4302	.sriov_configure = qlcnic_pci_sriov_configure,
4303#endif
4304
4305};
4306
4307static int __init qlcnic_init_module(void)
4308{
4309	int ret;
4310
4311	printk(KERN_INFO "%s\n", qlcnic_driver_string);
4312
4313#ifdef CONFIG_INET
4314	register_netdevice_notifier(&qlcnic_netdev_cb);
4315	register_inetaddr_notifier(&qlcnic_inetaddr_cb);
4316#endif
4317
4318	ret = pci_register_driver(&qlcnic_driver);
4319	if (ret) {
4320#ifdef CONFIG_INET
4321		unregister_inetaddr_notifier(&qlcnic_inetaddr_cb);
4322		unregister_netdevice_notifier(&qlcnic_netdev_cb);
4323#endif
4324	}
4325
4326	return ret;
4327}
4328
4329module_init(qlcnic_init_module);
4330
4331static void __exit qlcnic_exit_module(void)
4332{
4333	pci_unregister_driver(&qlcnic_driver);
4334
4335#ifdef CONFIG_INET
4336	unregister_inetaddr_notifier(&qlcnic_inetaddr_cb);
4337	unregister_netdevice_notifier(&qlcnic_netdev_cb);
4338#endif
4339}
4340
4341module_exit(qlcnic_exit_module);
4342