1/* SPDX-License-Identifier: GPL-2.0 */
2/* Copyright(c) 2013 - 2018 Intel Corporation. */
3
4#ifndef _IAVF_H_
5#define _IAVF_H_
6
7#include <linux/module.h>
8#include <linux/pci.h>
9#include <linux/netdevice.h>
10#include <linux/vmalloc.h>
11#include <linux/interrupt.h>
12#include <linux/ethtool.h>
13#include <linux/if_vlan.h>
14#include <linux/ip.h>
15#include <linux/tcp.h>
16#include <linux/sctp.h>
17#include <linux/ipv6.h>
18#include <linux/kernel.h>
19#include <linux/bitops.h>
20#include <linux/timer.h>
21#include <linux/workqueue.h>
22#include <linux/wait.h>
23#include <linux/delay.h>
24#include <linux/gfp.h>
25#include <linux/skbuff.h>
26#include <linux/dma-mapping.h>
27#include <linux/etherdevice.h>
28#include <linux/socket.h>
29#include <linux/jiffies.h>
30#include <net/ip6_checksum.h>
31#include <net/pkt_cls.h>
32#include <net/pkt_sched.h>
33#include <net/udp.h>
34#include <net/tc_act/tc_gact.h>
35#include <net/tc_act/tc_mirred.h>
36
37#include "iavf_type.h"
38#include <linux/avf/virtchnl.h>
39#include "iavf_txrx.h"
40#include "iavf_fdir.h"
41#include "iavf_adv_rss.h"
42#include <linux/bitmap.h>
43
44#define DEFAULT_DEBUG_LEVEL_SHIFT 3
45#define PFX "iavf: "
46
47int iavf_status_to_errno(enum iavf_status status);
48int virtchnl_status_to_errno(enum virtchnl_status_code v_status);
49
50/* VSI state flags shared with common code */
51enum iavf_vsi_state_t {
52	__IAVF_VSI_DOWN,
53	/* This must be last as it determines the size of the BITMAP */
54	__IAVF_VSI_STATE_SIZE__,
55};
56
57/* dummy struct to make common code less painful */
58struct iavf_vsi {
59	struct iavf_adapter *back;
60	struct net_device *netdev;
61	u16 seid;
62	u16 id;
63	DECLARE_BITMAP(state, __IAVF_VSI_STATE_SIZE__);
64	int base_vector;
65	u16 qs_handle;
66};
67
68/* How many Rx Buffers do we bundle into one write to the hardware ? */
69#define IAVF_RX_BUFFER_WRITE	16	/* Must be power of 2 */
70#define IAVF_DEFAULT_TXD	512
71#define IAVF_DEFAULT_RXD	512
72#define IAVF_MAX_TXD		4096
73#define IAVF_MIN_TXD		64
74#define IAVF_MAX_RXD		4096
75#define IAVF_MIN_RXD		64
76#define IAVF_REQ_DESCRIPTOR_MULTIPLE	32
77#define IAVF_MAX_AQ_BUF_SIZE	4096
78#define IAVF_AQ_LEN		32
79#define IAVF_AQ_MAX_ERR	20 /* times to try before resetting AQ */
80
81#define MAXIMUM_ETHERNET_VLAN_SIZE (VLAN_ETH_FRAME_LEN + ETH_FCS_LEN)
82
83#define IAVF_RX_DESC(R, i) (&(((union iavf_32byte_rx_desc *)((R)->desc))[i]))
84#define IAVF_TX_DESC(R, i) (&(((struct iavf_tx_desc *)((R)->desc))[i]))
85#define IAVF_TX_CTXTDESC(R, i) \
86	(&(((struct iavf_tx_context_desc *)((R)->desc))[i]))
87#define IAVF_MAX_REQ_QUEUES 16
88
89#define IAVF_HKEY_ARRAY_SIZE ((IAVF_VFQF_HKEY_MAX_INDEX + 1) * 4)
90#define IAVF_HLUT_ARRAY_SIZE ((IAVF_VFQF_HLUT_MAX_INDEX + 1) * 4)
91#define IAVF_MBPS_DIVISOR	125000 /* divisor to convert to Mbps */
92#define IAVF_MBPS_QUANTA	50
93
94#define IAVF_VIRTCHNL_VF_RESOURCE_SIZE					\
95	virtchnl_struct_size((struct virtchnl_vf_resource *)NULL,	\
96			     vsi_res, IAVF_MAX_VF_VSI)
97
98/* MAX_MSIX_Q_VECTORS of these are allocated,
99 * but we only use one per queue-specific vector.
100 */
101struct iavf_q_vector {
102	struct iavf_adapter *adapter;
103	struct iavf_vsi *vsi;
104	struct napi_struct napi;
105	struct iavf_ring_container rx;
106	struct iavf_ring_container tx;
107	u32 ring_mask;
108	u8 itr_countdown;	/* when 0 should adjust adaptive ITR */
109	u8 num_ringpairs;	/* total number of ring pairs in vector */
110	u16 v_idx;		/* index in the vsi->q_vector array. */
111	u16 reg_idx;		/* register index of the interrupt */
112	char name[IFNAMSIZ + 15];
113	bool arm_wb_state;
114	cpumask_t affinity_mask;
115	struct irq_affinity_notify affinity_notify;
116};
117
118/* Helper macros to switch between ints/sec and what the register uses.
119 * And yes, it's the same math going both ways.  The lowest value
120 * supported by all of the iavf hardware is 8.
121 */
122#define EITR_INTS_PER_SEC_TO_REG(_eitr) \
123	((_eitr) ? (1000000000 / ((_eitr) * 256)) : 8)
124#define EITR_REG_TO_INTS_PER_SEC EITR_INTS_PER_SEC_TO_REG
125
126#define IAVF_DESC_UNUSED(R) \
127	((((R)->next_to_clean > (R)->next_to_use) ? 0 : (R)->count) + \
128	(R)->next_to_clean - (R)->next_to_use - 1)
129
130#define OTHER_VECTOR 1
131#define NONQ_VECS (OTHER_VECTOR)
132
133#define MIN_MSIX_Q_VECTORS 1
134#define MIN_MSIX_COUNT (MIN_MSIX_Q_VECTORS + NONQ_VECS)
135
136#define IAVF_QUEUE_END_OF_LIST 0x7FF
137#define IAVF_FREE_VECTOR 0x7FFF
138struct iavf_mac_filter {
139	struct list_head list;
140	u8 macaddr[ETH_ALEN];
141	struct {
142		u8 is_new_mac:1;    /* filter is new, wait for PF decision */
143		u8 remove:1;        /* filter needs to be removed */
144		u8 add:1;           /* filter needs to be added */
145		u8 is_primary:1;    /* filter is a default VF MAC */
146		u8 add_handled:1;   /* received response for filter add */
147		u8 padding:3;
148	};
149};
150
151#define IAVF_VLAN(vid, tpid) ((struct iavf_vlan){ vid, tpid })
152struct iavf_vlan {
153	u16 vid;
154	u16 tpid;
155};
156
157enum iavf_vlan_state_t {
158	IAVF_VLAN_INVALID,
159	IAVF_VLAN_ADD,		/* filter needs to be added */
160	IAVF_VLAN_IS_NEW,	/* filter is new, wait for PF answer */
161	IAVF_VLAN_ACTIVE,	/* filter is accepted by PF */
162	IAVF_VLAN_DISABLE,	/* filter needs to be deleted by PF, then marked INACTIVE */
163	IAVF_VLAN_INACTIVE,	/* filter is inactive, we are in IFF_DOWN */
164	IAVF_VLAN_REMOVE,	/* filter needs to be removed from list */
165};
166
167struct iavf_vlan_filter {
168	struct list_head list;
169	struct iavf_vlan vlan;
170	enum iavf_vlan_state_t state;
171};
172
173#define IAVF_MAX_TRAFFIC_CLASS	4
174/* State of traffic class creation */
175enum iavf_tc_state_t {
176	__IAVF_TC_INVALID, /* no traffic class, default state */
177	__IAVF_TC_RUNNING, /* traffic classes have been created */
178};
179
180/* channel info */
181struct iavf_channel_config {
182	struct virtchnl_channel_info ch_info[IAVF_MAX_TRAFFIC_CLASS];
183	enum iavf_tc_state_t state;
184	u8 total_qps;
185};
186
187/* State of cloud filter */
188enum iavf_cloud_filter_state_t {
189	__IAVF_CF_INVALID,	 /* cloud filter not added */
190	__IAVF_CF_ADD_PENDING, /* cloud filter pending add by the PF */
191	__IAVF_CF_DEL_PENDING, /* cloud filter pending del by the PF */
192	__IAVF_CF_ACTIVE,	 /* cloud filter is active */
193};
194
195/* Driver state. The order of these is important! */
196enum iavf_state_t {
197	__IAVF_STARTUP,		/* driver loaded, probe complete */
198	__IAVF_REMOVE,		/* driver is being unloaded */
199	__IAVF_INIT_VERSION_CHECK,	/* aq msg sent, awaiting reply */
200	__IAVF_INIT_GET_RESOURCES,	/* aq msg sent, awaiting reply */
201	__IAVF_INIT_EXTENDED_CAPS,	/* process extended caps which require aq msg exchange */
202	__IAVF_INIT_CONFIG_ADAPTER,
203	__IAVF_INIT_SW,		/* got resources, setting up structs */
204	__IAVF_INIT_FAILED,	/* init failed, restarting procedure */
205	__IAVF_RESETTING,		/* in reset */
206	__IAVF_COMM_FAILED,		/* communication with PF failed */
207	/* Below here, watchdog is running */
208	__IAVF_DOWN,			/* ready, can be opened */
209	__IAVF_DOWN_PENDING,		/* descending, waiting for watchdog */
210	__IAVF_TESTING,		/* in ethtool self-test */
211	__IAVF_RUNNING,		/* opened, working */
212};
213
214enum iavf_critical_section_t {
215	__IAVF_IN_REMOVE_TASK,	/* device being removed */
216};
217
218#define IAVF_CLOUD_FIELD_OMAC		0x01
219#define IAVF_CLOUD_FIELD_IMAC		0x02
220#define IAVF_CLOUD_FIELD_IVLAN	0x04
221#define IAVF_CLOUD_FIELD_TEN_ID	0x08
222#define IAVF_CLOUD_FIELD_IIP		0x10
223
224#define IAVF_CF_FLAGS_OMAC	IAVF_CLOUD_FIELD_OMAC
225#define IAVF_CF_FLAGS_IMAC	IAVF_CLOUD_FIELD_IMAC
226#define IAVF_CF_FLAGS_IMAC_IVLAN	(IAVF_CLOUD_FIELD_IMAC |\
227					 IAVF_CLOUD_FIELD_IVLAN)
228#define IAVF_CF_FLAGS_IMAC_TEN_ID	(IAVF_CLOUD_FIELD_IMAC |\
229					 IAVF_CLOUD_FIELD_TEN_ID)
230#define IAVF_CF_FLAGS_OMAC_TEN_ID_IMAC	(IAVF_CLOUD_FIELD_OMAC |\
231						 IAVF_CLOUD_FIELD_IMAC |\
232						 IAVF_CLOUD_FIELD_TEN_ID)
233#define IAVF_CF_FLAGS_IMAC_IVLAN_TEN_ID	(IAVF_CLOUD_FIELD_IMAC |\
234						 IAVF_CLOUD_FIELD_IVLAN |\
235						 IAVF_CLOUD_FIELD_TEN_ID)
236#define IAVF_CF_FLAGS_IIP	IAVF_CLOUD_FIELD_IIP
237
238/* bookkeeping of cloud filters */
239struct iavf_cloud_filter {
240	enum iavf_cloud_filter_state_t state;
241	struct list_head list;
242	struct virtchnl_filter f;
243	unsigned long cookie;
244	bool del;		/* filter needs to be deleted */
245	bool add;		/* filter needs to be added */
246};
247
248#define IAVF_RESET_WAIT_MS 10
249#define IAVF_RESET_WAIT_DETECTED_COUNT 500
250#define IAVF_RESET_WAIT_COMPLETE_COUNT 2000
251
252/* board specific private data structure */
253struct iavf_adapter {
254	struct workqueue_struct *wq;
255	struct work_struct reset_task;
256	struct work_struct adminq_task;
257	struct work_struct finish_config;
258	wait_queue_head_t down_waitqueue;
259	wait_queue_head_t reset_waitqueue;
260	wait_queue_head_t vc_waitqueue;
261	struct iavf_q_vector *q_vectors;
262	struct list_head vlan_filter_list;
263	int num_vlan_filters;
264	struct list_head mac_filter_list;
265	struct mutex crit_lock;
266	/* Lock to protect accesses to MAC and VLAN lists */
267	spinlock_t mac_vlan_list_lock;
268	char misc_vector_name[IFNAMSIZ + 9];
269	int num_active_queues;
270	int num_req_queues;
271
272	/* TX */
273	struct iavf_ring *tx_rings;
274	u32 tx_timeout_count;
275	u32 tx_desc_count;
276
277	/* RX */
278	struct iavf_ring *rx_rings;
279	u64 hw_csum_rx_error;
280	u32 rx_desc_count;
281	int num_msix_vectors;
282	struct msix_entry *msix_entries;
283
284	u32 flags;
285#define IAVF_FLAG_RX_CSUM_ENABLED		BIT(0)
286#define IAVF_FLAG_PF_COMMS_FAILED		BIT(3)
287#define IAVF_FLAG_RESET_PENDING		BIT(4)
288#define IAVF_FLAG_RESET_NEEDED		BIT(5)
289#define IAVF_FLAG_WB_ON_ITR_CAPABLE		BIT(6)
290#define IAVF_FLAG_LEGACY_RX			BIT(15)
291#define IAVF_FLAG_REINIT_ITR_NEEDED		BIT(16)
292#define IAVF_FLAG_QUEUES_DISABLED		BIT(17)
293#define IAVF_FLAG_SETUP_NETDEV_FEATURES		BIT(18)
294#define IAVF_FLAG_REINIT_MSIX_NEEDED		BIT(20)
295#define IAVF_FLAG_FDIR_ENABLED			BIT(21)
296/* duplicates for common code */
297#define IAVF_FLAG_DCB_ENABLED			0
298	/* flags for admin queue service task */
299	u64 aq_required;
300#define IAVF_FLAG_AQ_ENABLE_QUEUES		BIT_ULL(0)
301#define IAVF_FLAG_AQ_DISABLE_QUEUES		BIT_ULL(1)
302#define IAVF_FLAG_AQ_ADD_MAC_FILTER		BIT_ULL(2)
303#define IAVF_FLAG_AQ_ADD_VLAN_FILTER		BIT_ULL(3)
304#define IAVF_FLAG_AQ_DEL_MAC_FILTER		BIT_ULL(4)
305#define IAVF_FLAG_AQ_DEL_VLAN_FILTER		BIT_ULL(5)
306#define IAVF_FLAG_AQ_CONFIGURE_QUEUES		BIT_ULL(6)
307#define IAVF_FLAG_AQ_MAP_VECTORS		BIT_ULL(7)
308#define IAVF_FLAG_AQ_HANDLE_RESET		BIT_ULL(8)
309#define IAVF_FLAG_AQ_CONFIGURE_RSS		BIT_ULL(9) /* direct AQ config */
310#define IAVF_FLAG_AQ_GET_CONFIG			BIT_ULL(10)
311/* Newer style, RSS done by the PF so we can ignore hardware vagaries. */
312#define IAVF_FLAG_AQ_GET_HENA			BIT_ULL(11)
313#define IAVF_FLAG_AQ_SET_HENA			BIT_ULL(12)
314#define IAVF_FLAG_AQ_SET_RSS_KEY		BIT_ULL(13)
315#define IAVF_FLAG_AQ_SET_RSS_LUT		BIT_ULL(14)
316#define IAVF_FLAG_AQ_SET_RSS_HFUNC		BIT_ULL(15)
317#define IAVF_FLAG_AQ_CONFIGURE_PROMISC_MODE	BIT_ULL(16)
318#define IAVF_FLAG_AQ_ENABLE_VLAN_STRIPPING	BIT_ULL(19)
319#define IAVF_FLAG_AQ_DISABLE_VLAN_STRIPPING	BIT_ULL(20)
320#define IAVF_FLAG_AQ_ENABLE_CHANNELS		BIT_ULL(21)
321#define IAVF_FLAG_AQ_DISABLE_CHANNELS		BIT_ULL(22)
322#define IAVF_FLAG_AQ_ADD_CLOUD_FILTER		BIT_ULL(23)
323#define IAVF_FLAG_AQ_DEL_CLOUD_FILTER		BIT_ULL(24)
324#define IAVF_FLAG_AQ_ADD_FDIR_FILTER		BIT_ULL(25)
325#define IAVF_FLAG_AQ_DEL_FDIR_FILTER		BIT_ULL(26)
326#define IAVF_FLAG_AQ_ADD_ADV_RSS_CFG		BIT_ULL(27)
327#define IAVF_FLAG_AQ_DEL_ADV_RSS_CFG		BIT_ULL(28)
328#define IAVF_FLAG_AQ_REQUEST_STATS		BIT_ULL(29)
329#define IAVF_FLAG_AQ_GET_OFFLOAD_VLAN_V2_CAPS	BIT_ULL(30)
330#define IAVF_FLAG_AQ_ENABLE_CTAG_VLAN_STRIPPING		BIT_ULL(31)
331#define IAVF_FLAG_AQ_DISABLE_CTAG_VLAN_STRIPPING	BIT_ULL(32)
332#define IAVF_FLAG_AQ_ENABLE_STAG_VLAN_STRIPPING		BIT_ULL(33)
333#define IAVF_FLAG_AQ_DISABLE_STAG_VLAN_STRIPPING	BIT_ULL(34)
334#define IAVF_FLAG_AQ_ENABLE_CTAG_VLAN_INSERTION		BIT_ULL(35)
335#define IAVF_FLAG_AQ_DISABLE_CTAG_VLAN_INSERTION	BIT_ULL(36)
336#define IAVF_FLAG_AQ_ENABLE_STAG_VLAN_INSERTION		BIT_ULL(37)
337#define IAVF_FLAG_AQ_DISABLE_STAG_VLAN_INSERTION	BIT_ULL(38)
338
339	/* flags for processing extended capability messages during
340	 * __IAVF_INIT_EXTENDED_CAPS. Each capability exchange requires
341	 * both a SEND and a RECV step, which must be processed in sequence.
342	 *
343	 * During the __IAVF_INIT_EXTENDED_CAPS state, the driver will
344	 * process one flag at a time during each state loop.
345	 */
346	u64 extended_caps;
347#define IAVF_EXTENDED_CAP_SEND_VLAN_V2			BIT_ULL(0)
348#define IAVF_EXTENDED_CAP_RECV_VLAN_V2			BIT_ULL(1)
349
350#define IAVF_EXTENDED_CAPS				\
351	(IAVF_EXTENDED_CAP_SEND_VLAN_V2 |		\
352	 IAVF_EXTENDED_CAP_RECV_VLAN_V2)
353
354	/* Lock to prevent possible clobbering of
355	 * current_netdev_promisc_flags
356	 */
357	spinlock_t current_netdev_promisc_flags_lock;
358	netdev_features_t current_netdev_promisc_flags;
359
360	/* OS defined structs */
361	struct net_device *netdev;
362	struct pci_dev *pdev;
363
364	struct iavf_hw hw; /* defined in iavf_type.h */
365
366	enum iavf_state_t state;
367	enum iavf_state_t last_state;
368	unsigned long crit_section;
369
370	struct delayed_work watchdog_task;
371	bool link_up;
372	enum virtchnl_link_speed link_speed;
373	/* This is only populated if the VIRTCHNL_VF_CAP_ADV_LINK_SPEED is set
374	 * in vf_res->vf_cap_flags. Use ADV_LINK_SUPPORT macro to determine if
375	 * this field is valid. This field should be used going forward and the
376	 * enum virtchnl_link_speed above should be considered the legacy way of
377	 * storing/communicating link speeds.
378	 */
379	u32 link_speed_mbps;
380
381	enum virtchnl_ops current_op;
382/* RSS by the PF should be preferred over RSS via other methods. */
383#define RSS_PF(_a) ((_a)->vf_res->vf_cap_flags & \
384		    VIRTCHNL_VF_OFFLOAD_RSS_PF)
385#define RSS_AQ(_a) ((_a)->vf_res->vf_cap_flags & \
386		    VIRTCHNL_VF_OFFLOAD_RSS_AQ)
387#define RSS_REG(_a) (!((_a)->vf_res->vf_cap_flags & \
388		       (VIRTCHNL_VF_OFFLOAD_RSS_AQ | \
389			VIRTCHNL_VF_OFFLOAD_RSS_PF)))
390#define VLAN_ALLOWED(_a) ((_a)->vf_res->vf_cap_flags & \
391			  VIRTCHNL_VF_OFFLOAD_VLAN)
392#define VLAN_V2_ALLOWED(_a) ((_a)->vf_res->vf_cap_flags & \
393			     VIRTCHNL_VF_OFFLOAD_VLAN_V2)
394#define CRC_OFFLOAD_ALLOWED(_a) ((_a)->vf_res->vf_cap_flags & \
395				 VIRTCHNL_VF_OFFLOAD_CRC)
396#define VLAN_V2_FILTERING_ALLOWED(_a) \
397	(VLAN_V2_ALLOWED((_a)) && \
398	 ((_a)->vlan_v2_caps.filtering.filtering_support.outer || \
399	  (_a)->vlan_v2_caps.filtering.filtering_support.inner))
400#define VLAN_FILTERING_ALLOWED(_a) \
401	(VLAN_ALLOWED((_a)) || VLAN_V2_FILTERING_ALLOWED((_a)))
402#define ADV_LINK_SUPPORT(_a) ((_a)->vf_res->vf_cap_flags & \
403			      VIRTCHNL_VF_CAP_ADV_LINK_SPEED)
404#define FDIR_FLTR_SUPPORT(_a) ((_a)->vf_res->vf_cap_flags & \
405			       VIRTCHNL_VF_OFFLOAD_FDIR_PF)
406#define ADV_RSS_SUPPORT(_a) ((_a)->vf_res->vf_cap_flags & \
407			     VIRTCHNL_VF_OFFLOAD_ADV_RSS_PF)
408	struct virtchnl_vf_resource *vf_res; /* incl. all VSIs */
409	struct virtchnl_vsi_resource *vsi_res; /* our LAN VSI */
410	struct virtchnl_version_info pf_version;
411#define PF_IS_V11(_a) (((_a)->pf_version.major == 1) && \
412		       ((_a)->pf_version.minor == 1))
413	struct virtchnl_vlan_caps vlan_v2_caps;
414	u16 msg_enable;
415	struct iavf_eth_stats current_stats;
416	struct iavf_vsi vsi;
417	u32 aq_wait_count;
418	/* RSS stuff */
419	enum virtchnl_rss_algorithm hfunc;
420	u64 hena;
421	u16 rss_key_size;
422	u16 rss_lut_size;
423	u8 *rss_key;
424	u8 *rss_lut;
425	/* ADQ related members */
426	struct iavf_channel_config ch_config;
427	u8 num_tc;
428	struct list_head cloud_filter_list;
429	/* lock to protect access to the cloud filter list */
430	spinlock_t cloud_filter_list_lock;
431	u16 num_cloud_filters;
432	/* snapshot of "num_active_queues" before setup_tc for qdisc add
433	 * is invoked. This information is useful during qdisc del flow,
434	 * to restore correct number of queues
435	 */
436	int orig_num_active_queues;
437
438#define IAVF_MAX_FDIR_FILTERS 128	/* max allowed Flow Director filters */
439	u16 fdir_active_fltr;
440	struct list_head fdir_list_head;
441	spinlock_t fdir_fltr_lock;	/* protect the Flow Director filter list */
442
443	struct list_head adv_rss_list_head;
444	spinlock_t adv_rss_lock;	/* protect the RSS management list */
445};
446
447
448/* Ethtool Private Flags */
449
450/* needed by iavf_ethtool.c */
451extern char iavf_driver_name[];
452
453static inline const char *iavf_state_str(enum iavf_state_t state)
454{
455	switch (state) {
456	case __IAVF_STARTUP:
457		return "__IAVF_STARTUP";
458	case __IAVF_REMOVE:
459		return "__IAVF_REMOVE";
460	case __IAVF_INIT_VERSION_CHECK:
461		return "__IAVF_INIT_VERSION_CHECK";
462	case __IAVF_INIT_GET_RESOURCES:
463		return "__IAVF_INIT_GET_RESOURCES";
464	case __IAVF_INIT_EXTENDED_CAPS:
465		return "__IAVF_INIT_EXTENDED_CAPS";
466	case __IAVF_INIT_CONFIG_ADAPTER:
467		return "__IAVF_INIT_CONFIG_ADAPTER";
468	case __IAVF_INIT_SW:
469		return "__IAVF_INIT_SW";
470	case __IAVF_INIT_FAILED:
471		return "__IAVF_INIT_FAILED";
472	case __IAVF_RESETTING:
473		return "__IAVF_RESETTING";
474	case __IAVF_COMM_FAILED:
475		return "__IAVF_COMM_FAILED";
476	case __IAVF_DOWN:
477		return "__IAVF_DOWN";
478	case __IAVF_DOWN_PENDING:
479		return "__IAVF_DOWN_PENDING";
480	case __IAVF_TESTING:
481		return "__IAVF_TESTING";
482	case __IAVF_RUNNING:
483		return "__IAVF_RUNNING";
484	default:
485		return "__IAVF_UNKNOWN_STATE";
486	}
487}
488
489static inline void iavf_change_state(struct iavf_adapter *adapter,
490				     enum iavf_state_t state)
491{
492	if (adapter->state != state) {
493		adapter->last_state = adapter->state;
494		adapter->state = state;
495	}
496	dev_dbg(&adapter->pdev->dev,
497		"state transition from:%s to:%s\n",
498		iavf_state_str(adapter->last_state),
499		iavf_state_str(adapter->state));
500}
501
502int iavf_up(struct iavf_adapter *adapter);
503void iavf_down(struct iavf_adapter *adapter);
504int iavf_process_config(struct iavf_adapter *adapter);
505int iavf_parse_vf_resource_msg(struct iavf_adapter *adapter);
506void iavf_schedule_reset(struct iavf_adapter *adapter, u64 flags);
507void iavf_schedule_aq_request(struct iavf_adapter *adapter, u64 flags);
508void iavf_schedule_finish_config(struct iavf_adapter *adapter);
509void iavf_reset(struct iavf_adapter *adapter);
510void iavf_set_ethtool_ops(struct net_device *netdev);
511void iavf_update_stats(struct iavf_adapter *adapter);
512void iavf_free_all_tx_resources(struct iavf_adapter *adapter);
513void iavf_free_all_rx_resources(struct iavf_adapter *adapter);
514
515void iavf_napi_add_all(struct iavf_adapter *adapter);
516void iavf_napi_del_all(struct iavf_adapter *adapter);
517
518int iavf_send_api_ver(struct iavf_adapter *adapter);
519int iavf_verify_api_ver(struct iavf_adapter *adapter);
520int iavf_send_vf_config_msg(struct iavf_adapter *adapter);
521int iavf_get_vf_config(struct iavf_adapter *adapter);
522int iavf_get_vf_vlan_v2_caps(struct iavf_adapter *adapter);
523int iavf_send_vf_offload_vlan_v2_msg(struct iavf_adapter *adapter);
524void iavf_set_queue_vlan_tag_loc(struct iavf_adapter *adapter);
525u16 iavf_get_num_vlans_added(struct iavf_adapter *adapter);
526void iavf_irq_enable(struct iavf_adapter *adapter, bool flush);
527void iavf_configure_queues(struct iavf_adapter *adapter);
528void iavf_deconfigure_queues(struct iavf_adapter *adapter);
529void iavf_enable_queues(struct iavf_adapter *adapter);
530void iavf_disable_queues(struct iavf_adapter *adapter);
531void iavf_map_queues(struct iavf_adapter *adapter);
532int iavf_request_queues(struct iavf_adapter *adapter, int num);
533void iavf_add_ether_addrs(struct iavf_adapter *adapter);
534void iavf_del_ether_addrs(struct iavf_adapter *adapter);
535void iavf_add_vlans(struct iavf_adapter *adapter);
536void iavf_del_vlans(struct iavf_adapter *adapter);
537void iavf_set_promiscuous(struct iavf_adapter *adapter);
538bool iavf_promiscuous_mode_changed(struct iavf_adapter *adapter);
539void iavf_request_stats(struct iavf_adapter *adapter);
540int iavf_request_reset(struct iavf_adapter *adapter);
541void iavf_get_hena(struct iavf_adapter *adapter);
542void iavf_set_hena(struct iavf_adapter *adapter);
543void iavf_set_rss_key(struct iavf_adapter *adapter);
544void iavf_set_rss_lut(struct iavf_adapter *adapter);
545void iavf_set_rss_hfunc(struct iavf_adapter *adapter);
546void iavf_enable_vlan_stripping(struct iavf_adapter *adapter);
547void iavf_disable_vlan_stripping(struct iavf_adapter *adapter);
548void iavf_virtchnl_completion(struct iavf_adapter *adapter,
549			      enum virtchnl_ops v_opcode,
550			      enum iavf_status v_retval, u8 *msg, u16 msglen);
551int iavf_config_rss(struct iavf_adapter *adapter);
552int iavf_lan_add_device(struct iavf_adapter *adapter);
553int iavf_lan_del_device(struct iavf_adapter *adapter);
554void iavf_enable_channels(struct iavf_adapter *adapter);
555void iavf_disable_channels(struct iavf_adapter *adapter);
556void iavf_add_cloud_filter(struct iavf_adapter *adapter);
557void iavf_del_cloud_filter(struct iavf_adapter *adapter);
558void iavf_enable_vlan_stripping_v2(struct iavf_adapter *adapter, u16 tpid);
559void iavf_disable_vlan_stripping_v2(struct iavf_adapter *adapter, u16 tpid);
560void iavf_enable_vlan_insertion_v2(struct iavf_adapter *adapter, u16 tpid);
561void iavf_disable_vlan_insertion_v2(struct iavf_adapter *adapter, u16 tpid);
562void iavf_add_fdir_filter(struct iavf_adapter *adapter);
563void iavf_del_fdir_filter(struct iavf_adapter *adapter);
564void iavf_add_adv_rss_cfg(struct iavf_adapter *adapter);
565void iavf_del_adv_rss_cfg(struct iavf_adapter *adapter);
566struct iavf_mac_filter *iavf_add_filter(struct iavf_adapter *adapter,
567					const u8 *macaddr);
568int iavf_wait_for_reset(struct iavf_adapter *adapter);
569#endif /* _IAVF_H_ */
570