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/aer.h>
10 #include <linux/netdevice.h>
11 #include <linux/vmalloc.h>
12 #include <linux/interrupt.h>
13 #include <linux/ethtool.h>
14 #include <linux/if_vlan.h>
15 #include <linux/ip.h>
16 #include <linux/tcp.h>
17 #include <linux/sctp.h>
18 #include <linux/ipv6.h>
19 #include <linux/kernel.h>
20 #include <linux/bitops.h>
21 #include <linux/timer.h>
22 #include <linux/workqueue.h>
23 #include <linux/wait.h>
24 #include <linux/delay.h>
25 #include <linux/gfp.h>
26 #include <linux/skbuff.h>
27 #include <linux/dma-mapping.h>
28 #include <linux/etherdevice.h>
29 #include <linux/socket.h>
30 #include <linux/jiffies.h>
31 #include <net/ip6_checksum.h>
32 #include <net/pkt_cls.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 
47 int iavf_status_to_errno(enum iavf_status status);
48 int virtchnl_status_to_errno(enum virtchnl_status_code v_status);
49 
50 /* VSI state flags shared with common code */
51 enum 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 */
58 struct iavf_vsi {
59 	struct iavf_adapter *back;
60 	struct net_device *netdev;
61 	unsigned long active_cvlans[BITS_TO_LONGS(VLAN_N_VID)];
62 	unsigned long active_svlans[BITS_TO_LONGS(VLAN_N_VID)];
63 	u16 seid;
64 	u16 id;
65 	DECLARE_BITMAP(state, __IAVF_VSI_STATE_SIZE__);
66 	int base_vector;
67 	u16 work_limit;
68 	u16 qs_handle;
69 	void *priv;     /* client driver data reference. */
70 };
71 
72 /* How many Rx Buffers do we bundle into one write to the hardware ? */
73 #define IAVF_RX_BUFFER_WRITE	16	/* Must be power of 2 */
74 #define IAVF_DEFAULT_TXD	512
75 #define IAVF_DEFAULT_RXD	512
76 #define IAVF_MAX_TXD		4096
77 #define IAVF_MIN_TXD		64
78 #define IAVF_MAX_RXD		4096
79 #define IAVF_MIN_RXD		64
80 #define IAVF_REQ_DESCRIPTOR_MULTIPLE	32
81 #define IAVF_MAX_AQ_BUF_SIZE	4096
82 #define IAVF_AQ_LEN		32
83 #define IAVF_AQ_MAX_ERR	20 /* times to try before resetting AQ */
84 
85 #define MAXIMUM_ETHERNET_VLAN_SIZE (VLAN_ETH_FRAME_LEN + ETH_FCS_LEN)
86 
87 #define IAVF_RX_DESC(R, i) (&(((union iavf_32byte_rx_desc *)((R)->desc))[i]))
88 #define IAVF_TX_DESC(R, i) (&(((struct iavf_tx_desc *)((R)->desc))[i]))
89 #define IAVF_TX_CTXTDESC(R, i) \
90 	(&(((struct iavf_tx_context_desc *)((R)->desc))[i]))
91 #define IAVF_MAX_REQ_QUEUES 16
92 
93 #define IAVF_HKEY_ARRAY_SIZE ((IAVF_VFQF_HKEY_MAX_INDEX + 1) * 4)
94 #define IAVF_HLUT_ARRAY_SIZE ((IAVF_VFQF_HLUT_MAX_INDEX + 1) * 4)
95 #define IAVF_MBPS_DIVISOR	125000 /* divisor to convert to Mbps */
96 
97 #define IAVF_VIRTCHNL_VF_RESOURCE_SIZE (sizeof(struct virtchnl_vf_resource) + \
98 					(IAVF_MAX_VF_VSI * \
99 					 sizeof(struct virtchnl_vsi_resource)))
100 
101 /* MAX_MSIX_Q_VECTORS of these are allocated,
102  * but we only use one per queue-specific vector.
103  */
104 struct iavf_q_vector {
105 	struct iavf_adapter *adapter;
106 	struct iavf_vsi *vsi;
107 	struct napi_struct napi;
108 	struct iavf_ring_container rx;
109 	struct iavf_ring_container tx;
110 	u32 ring_mask;
111 	u8 itr_countdown;	/* when 0 should adjust adaptive ITR */
112 	u8 num_ringpairs;	/* total number of ring pairs in vector */
113 	u16 v_idx;		/* index in the vsi->q_vector array. */
114 	u16 reg_idx;		/* register index of the interrupt */
115 	char name[IFNAMSIZ + 15];
116 	bool arm_wb_state;
117 	cpumask_t affinity_mask;
118 	struct irq_affinity_notify affinity_notify;
119 };
120 
121 /* Helper macros to switch between ints/sec and what the register uses.
122  * And yes, it's the same math going both ways.  The lowest value
123  * supported by all of the iavf hardware is 8.
124  */
125 #define EITR_INTS_PER_SEC_TO_REG(_eitr) \
126 	((_eitr) ? (1000000000 / ((_eitr) * 256)) : 8)
127 #define EITR_REG_TO_INTS_PER_SEC EITR_INTS_PER_SEC_TO_REG
128 
129 #define IAVF_DESC_UNUSED(R) \
130 	((((R)->next_to_clean > (R)->next_to_use) ? 0 : (R)->count) + \
131 	(R)->next_to_clean - (R)->next_to_use - 1)
132 
133 #define OTHER_VECTOR 1
134 #define NONQ_VECS (OTHER_VECTOR)
135 
136 #define MIN_MSIX_Q_VECTORS 1
137 #define MIN_MSIX_COUNT (MIN_MSIX_Q_VECTORS + NONQ_VECS)
138 
139 #define IAVF_QUEUE_END_OF_LIST 0x7FF
140 #define IAVF_FREE_VECTOR 0x7FFF
141 struct iavf_mac_filter {
142 	struct list_head list;
143 	u8 macaddr[ETH_ALEN];
144 	struct {
145 		u8 is_new_mac:1;    /* filter is new, wait for PF decision */
146 		u8 remove:1;        /* filter needs to be removed */
147 		u8 add:1;           /* filter needs to be added */
148 		u8 is_primary:1;    /* filter is a default VF MAC */
149 		u8 padding:4;
150 	};
151 };
152 
153 #define IAVF_VLAN(vid, tpid) ((struct iavf_vlan){ vid, tpid })
154 struct iavf_vlan {
155 	u16 vid;
156 	u16 tpid;
157 };
158 
159 struct iavf_vlan_filter {
160 	struct list_head list;
161 	struct iavf_vlan vlan;
162 	bool remove;		/* filter needs to be removed */
163 	bool add;		/* filter needs to be added */
164 };
165 
166 #define IAVF_MAX_TRAFFIC_CLASS	4
167 /* State of traffic class creation */
168 enum iavf_tc_state_t {
169 	__IAVF_TC_INVALID, /* no traffic class, default state */
170 	__IAVF_TC_RUNNING, /* traffic classes have been created */
171 };
172 
173 /* channel info */
174 struct iavf_channel_config {
175 	struct virtchnl_channel_info ch_info[IAVF_MAX_TRAFFIC_CLASS];
176 	enum iavf_tc_state_t state;
177 	u8 total_qps;
178 };
179 
180 /* State of cloud filter */
181 enum iavf_cloud_filter_state_t {
182 	__IAVF_CF_INVALID,	 /* cloud filter not added */
183 	__IAVF_CF_ADD_PENDING, /* cloud filter pending add by the PF */
184 	__IAVF_CF_DEL_PENDING, /* cloud filter pending del by the PF */
185 	__IAVF_CF_ACTIVE,	 /* cloud filter is active */
186 };
187 
188 /* Driver state. The order of these is important! */
189 enum iavf_state_t {
190 	__IAVF_STARTUP,		/* driver loaded, probe complete */
191 	__IAVF_REMOVE,		/* driver is being unloaded */
192 	__IAVF_INIT_VERSION_CHECK,	/* aq msg sent, awaiting reply */
193 	__IAVF_INIT_GET_RESOURCES,	/* aq msg sent, awaiting reply */
194 	__IAVF_INIT_EXTENDED_CAPS,	/* process extended caps which require aq msg exchange */
195 	__IAVF_INIT_CONFIG_ADAPTER,
196 	__IAVF_INIT_SW,		/* got resources, setting up structs */
197 	__IAVF_INIT_FAILED,	/* init failed, restarting procedure */
198 	__IAVF_RESETTING,		/* in reset */
199 	__IAVF_COMM_FAILED,		/* communication with PF failed */
200 	/* Below here, watchdog is running */
201 	__IAVF_DOWN,			/* ready, can be opened */
202 	__IAVF_DOWN_PENDING,		/* descending, waiting for watchdog */
203 	__IAVF_TESTING,		/* in ethtool self-test */
204 	__IAVF_RUNNING,		/* opened, working */
205 };
206 
207 enum iavf_critical_section_t {
208 	__IAVF_IN_REMOVE_TASK,	/* device being removed */
209 };
210 
211 #define IAVF_CLOUD_FIELD_OMAC		0x01
212 #define IAVF_CLOUD_FIELD_IMAC		0x02
213 #define IAVF_CLOUD_FIELD_IVLAN	0x04
214 #define IAVF_CLOUD_FIELD_TEN_ID	0x08
215 #define IAVF_CLOUD_FIELD_IIP		0x10
216 
217 #define IAVF_CF_FLAGS_OMAC	IAVF_CLOUD_FIELD_OMAC
218 #define IAVF_CF_FLAGS_IMAC	IAVF_CLOUD_FIELD_IMAC
219 #define IAVF_CF_FLAGS_IMAC_IVLAN	(IAVF_CLOUD_FIELD_IMAC |\
220 					 IAVF_CLOUD_FIELD_IVLAN)
221 #define IAVF_CF_FLAGS_IMAC_TEN_ID	(IAVF_CLOUD_FIELD_IMAC |\
222 					 IAVF_CLOUD_FIELD_TEN_ID)
223 #define IAVF_CF_FLAGS_OMAC_TEN_ID_IMAC	(IAVF_CLOUD_FIELD_OMAC |\
224 						 IAVF_CLOUD_FIELD_IMAC |\
225 						 IAVF_CLOUD_FIELD_TEN_ID)
226 #define IAVF_CF_FLAGS_IMAC_IVLAN_TEN_ID	(IAVF_CLOUD_FIELD_IMAC |\
227 						 IAVF_CLOUD_FIELD_IVLAN |\
228 						 IAVF_CLOUD_FIELD_TEN_ID)
229 #define IAVF_CF_FLAGS_IIP	IAVF_CLOUD_FIELD_IIP
230 
231 /* bookkeeping of cloud filters */
232 struct iavf_cloud_filter {
233 	enum iavf_cloud_filter_state_t state;
234 	struct list_head list;
235 	struct virtchnl_filter f;
236 	unsigned long cookie;
237 	bool del;		/* filter needs to be deleted */
238 	bool add;		/* filter needs to be added */
239 };
240 
241 #define IAVF_RESET_WAIT_MS 10
242 #define IAVF_RESET_WAIT_DETECTED_COUNT 500
243 #define IAVF_RESET_WAIT_COMPLETE_COUNT 2000
244 
245 /* board specific private data structure */
246 struct iavf_adapter {
247 	struct work_struct reset_task;
248 	struct work_struct adminq_task;
249 	struct delayed_work client_task;
250 	wait_queue_head_t down_waitqueue;
251 	struct iavf_q_vector *q_vectors;
252 	struct list_head vlan_filter_list;
253 	struct list_head mac_filter_list;
254 	struct mutex crit_lock;
255 	struct mutex client_lock;
256 	/* Lock to protect accesses to MAC and VLAN lists */
257 	spinlock_t mac_vlan_list_lock;
258 	char misc_vector_name[IFNAMSIZ + 9];
259 	int num_active_queues;
260 	int num_req_queues;
261 
262 	/* TX */
263 	struct iavf_ring *tx_rings;
264 	u32 tx_timeout_count;
265 	u32 tx_desc_count;
266 
267 	/* RX */
268 	struct iavf_ring *rx_rings;
269 	u64 hw_csum_rx_error;
270 	u32 rx_desc_count;
271 	int num_msix_vectors;
272 	int num_iwarp_msix;
273 	int iwarp_base_vector;
274 	u32 client_pending;
275 	struct iavf_client_instance *cinst;
276 	struct msix_entry *msix_entries;
277 
278 	u32 flags;
279 #define IAVF_FLAG_RX_CSUM_ENABLED		BIT(0)
280 #define IAVF_FLAG_PF_COMMS_FAILED		BIT(3)
281 #define IAVF_FLAG_RESET_PENDING		BIT(4)
282 #define IAVF_FLAG_RESET_NEEDED		BIT(5)
283 #define IAVF_FLAG_WB_ON_ITR_CAPABLE		BIT(6)
284 #define IAVF_FLAG_SERVICE_CLIENT_REQUESTED	BIT(9)
285 #define IAVF_FLAG_CLIENT_NEEDS_OPEN		BIT(10)
286 #define IAVF_FLAG_CLIENT_NEEDS_CLOSE		BIT(11)
287 #define IAVF_FLAG_CLIENT_NEEDS_L2_PARAMS	BIT(12)
288 #define IAVF_FLAG_PROMISC_ON			BIT(13)
289 #define IAVF_FLAG_ALLMULTI_ON			BIT(14)
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 /* duplicates for common code */
296 #define IAVF_FLAG_DCB_ENABLED			0
297 	/* flags for admin queue service task */
298 	u64 aq_required;
299 #define IAVF_FLAG_AQ_ENABLE_QUEUES		BIT_ULL(0)
300 #define IAVF_FLAG_AQ_DISABLE_QUEUES		BIT_ULL(1)
301 #define IAVF_FLAG_AQ_ADD_MAC_FILTER		BIT_ULL(2)
302 #define IAVF_FLAG_AQ_ADD_VLAN_FILTER		BIT_ULL(3)
303 #define IAVF_FLAG_AQ_DEL_MAC_FILTER		BIT_ULL(4)
304 #define IAVF_FLAG_AQ_DEL_VLAN_FILTER		BIT_ULL(5)
305 #define IAVF_FLAG_AQ_CONFIGURE_QUEUES		BIT_ULL(6)
306 #define IAVF_FLAG_AQ_MAP_VECTORS		BIT_ULL(7)
307 #define IAVF_FLAG_AQ_HANDLE_RESET		BIT_ULL(8)
308 #define IAVF_FLAG_AQ_CONFIGURE_RSS		BIT_ULL(9) /* direct AQ config */
309 #define IAVF_FLAG_AQ_GET_CONFIG			BIT_ULL(10)
310 /* Newer style, RSS done by the PF so we can ignore hardware vagaries. */
311 #define IAVF_FLAG_AQ_GET_HENA			BIT_ULL(11)
312 #define IAVF_FLAG_AQ_SET_HENA			BIT_ULL(12)
313 #define IAVF_FLAG_AQ_SET_RSS_KEY		BIT_ULL(13)
314 #define IAVF_FLAG_AQ_SET_RSS_LUT		BIT_ULL(14)
315 #define IAVF_FLAG_AQ_REQUEST_PROMISC		BIT_ULL(15)
316 #define IAVF_FLAG_AQ_RELEASE_PROMISC		BIT_ULL(16)
317 #define IAVF_FLAG_AQ_REQUEST_ALLMULTI		BIT_ULL(17)
318 #define IAVF_FLAG_AQ_RELEASE_ALLMULTI		BIT_ULL(18)
319 #define IAVF_FLAG_AQ_ENABLE_VLAN_STRIPPING	BIT_ULL(19)
320 #define IAVF_FLAG_AQ_DISABLE_VLAN_STRIPPING	BIT_ULL(20)
321 #define IAVF_FLAG_AQ_ENABLE_CHANNELS		BIT_ULL(21)
322 #define IAVF_FLAG_AQ_DISABLE_CHANNELS		BIT_ULL(22)
323 #define IAVF_FLAG_AQ_ADD_CLOUD_FILTER		BIT_ULL(23)
324 #define IAVF_FLAG_AQ_DEL_CLOUD_FILTER		BIT_ULL(24)
325 #define IAVF_FLAG_AQ_ADD_FDIR_FILTER		BIT_ULL(25)
326 #define IAVF_FLAG_AQ_DEL_FDIR_FILTER		BIT_ULL(26)
327 #define IAVF_FLAG_AQ_ADD_ADV_RSS_CFG		BIT_ULL(27)
328 #define IAVF_FLAG_AQ_DEL_ADV_RSS_CFG		BIT_ULL(28)
329 #define IAVF_FLAG_AQ_REQUEST_STATS		BIT_ULL(29)
330 #define IAVF_FLAG_AQ_GET_OFFLOAD_VLAN_V2_CAPS	BIT_ULL(30)
331 #define IAVF_FLAG_AQ_ENABLE_CTAG_VLAN_STRIPPING		BIT_ULL(31)
332 #define IAVF_FLAG_AQ_DISABLE_CTAG_VLAN_STRIPPING	BIT_ULL(32)
333 #define IAVF_FLAG_AQ_ENABLE_STAG_VLAN_STRIPPING		BIT_ULL(33)
334 #define IAVF_FLAG_AQ_DISABLE_STAG_VLAN_STRIPPING	BIT_ULL(34)
335 #define IAVF_FLAG_AQ_ENABLE_CTAG_VLAN_INSERTION		BIT_ULL(35)
336 #define IAVF_FLAG_AQ_DISABLE_CTAG_VLAN_INSERTION	BIT_ULL(36)
337 #define IAVF_FLAG_AQ_ENABLE_STAG_VLAN_INSERTION		BIT_ULL(37)
338 #define IAVF_FLAG_AQ_DISABLE_STAG_VLAN_INSERTION	BIT_ULL(38)
339 
340 	/* flags for processing extended capability messages during
341 	 * __IAVF_INIT_EXTENDED_CAPS. Each capability exchange requires
342 	 * both a SEND and a RECV step, which must be processed in sequence.
343 	 *
344 	 * During the __IAVF_INIT_EXTENDED_CAPS state, the driver will
345 	 * process one flag at a time during each state loop.
346 	 */
347 	u64 extended_caps;
348 #define IAVF_EXTENDED_CAP_SEND_VLAN_V2			BIT_ULL(0)
349 #define IAVF_EXTENDED_CAP_RECV_VLAN_V2			BIT_ULL(1)
350 
351 #define IAVF_EXTENDED_CAPS				\
352 	(IAVF_EXTENDED_CAP_SEND_VLAN_V2 |		\
353 	 IAVF_EXTENDED_CAP_RECV_VLAN_V2)
354 
355 	/* OS defined structs */
356 	struct net_device *netdev;
357 	struct pci_dev *pdev;
358 
359 	struct iavf_hw hw; /* defined in iavf_type.h */
360 
361 	enum iavf_state_t state;
362 	enum iavf_state_t last_state;
363 	unsigned long crit_section;
364 
365 	struct delayed_work watchdog_task;
366 	bool netdev_registered;
367 	bool link_up;
368 	enum virtchnl_link_speed link_speed;
369 	/* This is only populated if the VIRTCHNL_VF_CAP_ADV_LINK_SPEED is set
370 	 * in vf_res->vf_cap_flags. Use ADV_LINK_SUPPORT macro to determine if
371 	 * this field is valid. This field should be used going forward and the
372 	 * enum virtchnl_link_speed above should be considered the legacy way of
373 	 * storing/communicating link speeds.
374 	 */
375 	u32 link_speed_mbps;
376 
377 	enum virtchnl_ops current_op;
378 #define CLIENT_ALLOWED(_a) ((_a)->vf_res ? \
379 			    (_a)->vf_res->vf_cap_flags & \
380 				VIRTCHNL_VF_OFFLOAD_IWARP : \
381 			    0)
382 #define CLIENT_ENABLED(_a) ((_a)->cinst)
383 /* RSS by the PF should be preferred over RSS via other methods. */
384 #define RSS_PF(_a) ((_a)->vf_res->vf_cap_flags & \
385 		    VIRTCHNL_VF_OFFLOAD_RSS_PF)
386 #define RSS_AQ(_a) ((_a)->vf_res->vf_cap_flags & \
387 		    VIRTCHNL_VF_OFFLOAD_RSS_AQ)
388 #define RSS_REG(_a) (!((_a)->vf_res->vf_cap_flags & \
389 		       (VIRTCHNL_VF_OFFLOAD_RSS_AQ | \
390 			VIRTCHNL_VF_OFFLOAD_RSS_PF)))
391 #define VLAN_ALLOWED(_a) ((_a)->vf_res->vf_cap_flags & \
392 			  VIRTCHNL_VF_OFFLOAD_VLAN)
393 #define VLAN_V2_ALLOWED(_a) ((_a)->vf_res->vf_cap_flags & \
394 			     VIRTCHNL_VF_OFFLOAD_VLAN_V2)
395 #define VLAN_V2_FILTERING_ALLOWED(_a) \
396 	(VLAN_V2_ALLOWED((_a)) && \
397 	 ((_a)->vlan_v2_caps.filtering.filtering_support.outer || \
398 	  (_a)->vlan_v2_caps.filtering.filtering_support.inner))
399 #define VLAN_FILTERING_ALLOWED(_a) \
400 	(VLAN_ALLOWED((_a)) || VLAN_V2_FILTERING_ALLOWED((_a)))
401 #define ADV_LINK_SUPPORT(_a) ((_a)->vf_res->vf_cap_flags & \
402 			      VIRTCHNL_VF_CAP_ADV_LINK_SPEED)
403 #define FDIR_FLTR_SUPPORT(_a) ((_a)->vf_res->vf_cap_flags & \
404 			       VIRTCHNL_VF_OFFLOAD_FDIR_PF)
405 #define ADV_RSS_SUPPORT(_a) ((_a)->vf_res->vf_cap_flags & \
406 			     VIRTCHNL_VF_OFFLOAD_ADV_RSS_PF)
407 	struct virtchnl_vf_resource *vf_res; /* incl. all VSIs */
408 	struct virtchnl_vsi_resource *vsi_res; /* our LAN VSI */
409 	struct virtchnl_version_info pf_version;
410 #define PF_IS_V11(_a) (((_a)->pf_version.major == 1) && \
411 		       ((_a)->pf_version.minor == 1))
412 	struct virtchnl_vlan_caps vlan_v2_caps;
413 	u16 msg_enable;
414 	struct iavf_eth_stats current_stats;
415 	struct iavf_vsi vsi;
416 	u32 aq_wait_count;
417 	/* RSS stuff */
418 	u64 hena;
419 	u16 rss_key_size;
420 	u16 rss_lut_size;
421 	u8 *rss_key;
422 	u8 *rss_lut;
423 	/* ADQ related members */
424 	struct iavf_channel_config ch_config;
425 	u8 num_tc;
426 	struct list_head cloud_filter_list;
427 	/* lock to protect access to the cloud filter list */
428 	spinlock_t cloud_filter_list_lock;
429 	u16 num_cloud_filters;
430 
431 #define IAVF_MAX_FDIR_FILTERS 128	/* max allowed Flow Director filters */
432 	u16 fdir_active_fltr;
433 	struct list_head fdir_list_head;
434 	spinlock_t fdir_fltr_lock;	/* protect the Flow Director filter list */
435 
436 	struct list_head adv_rss_list_head;
437 	spinlock_t adv_rss_lock;	/* protect the RSS management list */
438 };
439 
440 
441 /* Ethtool Private Flags */
442 
443 /* lan device, used by client interface */
444 struct iavf_device {
445 	struct list_head list;
446 	struct iavf_adapter *vf;
447 };
448 
449 /* needed by iavf_ethtool.c */
450 extern char iavf_driver_name[];
451 extern struct workqueue_struct *iavf_wq;
452 
453 static 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_SW:
465 		return "__IAVF_INIT_SW";
466 	case __IAVF_INIT_FAILED:
467 		return "__IAVF_INIT_FAILED";
468 	case __IAVF_RESETTING:
469 		return "__IAVF_RESETTING";
470 	case __IAVF_COMM_FAILED:
471 		return "__IAVF_COMM_FAILED";
472 	case __IAVF_DOWN:
473 		return "__IAVF_DOWN";
474 	case __IAVF_DOWN_PENDING:
475 		return "__IAVF_DOWN_PENDING";
476 	case __IAVF_TESTING:
477 		return "__IAVF_TESTING";
478 	case __IAVF_RUNNING:
479 		return "__IAVF_RUNNING";
480 	default:
481 		return "__IAVF_UNKNOWN_STATE";
482 	}
483 }
484 
485 static inline void iavf_change_state(struct iavf_adapter *adapter,
486 				     enum iavf_state_t state)
487 {
488 	if (adapter->state != state) {
489 		adapter->last_state = adapter->state;
490 		adapter->state = state;
491 	}
492 	dev_dbg(&adapter->pdev->dev,
493 		"state transition from:%s to:%s\n",
494 		iavf_state_str(adapter->last_state),
495 		iavf_state_str(adapter->state));
496 }
497 
498 int iavf_up(struct iavf_adapter *adapter);
499 void iavf_down(struct iavf_adapter *adapter);
500 int iavf_process_config(struct iavf_adapter *adapter);
501 int iavf_parse_vf_resource_msg(struct iavf_adapter *adapter);
502 void iavf_schedule_reset(struct iavf_adapter *adapter);
503 void iavf_schedule_request_stats(struct iavf_adapter *adapter);
504 void iavf_reset(struct iavf_adapter *adapter);
505 void iavf_set_ethtool_ops(struct net_device *netdev);
506 void iavf_update_stats(struct iavf_adapter *adapter);
507 void iavf_reset_interrupt_capability(struct iavf_adapter *adapter);
508 int iavf_init_interrupt_scheme(struct iavf_adapter *adapter);
509 void iavf_irq_enable_queues(struct iavf_adapter *adapter, u32 mask);
510 void iavf_free_all_tx_resources(struct iavf_adapter *adapter);
511 void iavf_free_all_rx_resources(struct iavf_adapter *adapter);
512 
513 void iavf_napi_add_all(struct iavf_adapter *adapter);
514 void iavf_napi_del_all(struct iavf_adapter *adapter);
515 
516 int iavf_send_api_ver(struct iavf_adapter *adapter);
517 int iavf_verify_api_ver(struct iavf_adapter *adapter);
518 int iavf_send_vf_config_msg(struct iavf_adapter *adapter);
519 int iavf_get_vf_config(struct iavf_adapter *adapter);
520 int iavf_get_vf_vlan_v2_caps(struct iavf_adapter *adapter);
521 int iavf_send_vf_offload_vlan_v2_msg(struct iavf_adapter *adapter);
522 void iavf_set_queue_vlan_tag_loc(struct iavf_adapter *adapter);
523 void iavf_irq_enable(struct iavf_adapter *adapter, bool flush);
524 void iavf_configure_queues(struct iavf_adapter *adapter);
525 void iavf_deconfigure_queues(struct iavf_adapter *adapter);
526 void iavf_enable_queues(struct iavf_adapter *adapter);
527 void iavf_disable_queues(struct iavf_adapter *adapter);
528 void iavf_map_queues(struct iavf_adapter *adapter);
529 int iavf_request_queues(struct iavf_adapter *adapter, int num);
530 void iavf_add_ether_addrs(struct iavf_adapter *adapter);
531 void iavf_del_ether_addrs(struct iavf_adapter *adapter);
532 void iavf_add_vlans(struct iavf_adapter *adapter);
533 void iavf_del_vlans(struct iavf_adapter *adapter);
534 void iavf_set_promiscuous(struct iavf_adapter *adapter, int flags);
535 void iavf_request_stats(struct iavf_adapter *adapter);
536 int iavf_request_reset(struct iavf_adapter *adapter);
537 void iavf_get_hena(struct iavf_adapter *adapter);
538 void iavf_set_hena(struct iavf_adapter *adapter);
539 void iavf_set_rss_key(struct iavf_adapter *adapter);
540 void iavf_set_rss_lut(struct iavf_adapter *adapter);
541 void iavf_enable_vlan_stripping(struct iavf_adapter *adapter);
542 void iavf_disable_vlan_stripping(struct iavf_adapter *adapter);
543 void iavf_virtchnl_completion(struct iavf_adapter *adapter,
544 			      enum virtchnl_ops v_opcode,
545 			      enum iavf_status v_retval, u8 *msg, u16 msglen);
546 int iavf_config_rss(struct iavf_adapter *adapter);
547 int iavf_lan_add_device(struct iavf_adapter *adapter);
548 int iavf_lan_del_device(struct iavf_adapter *adapter);
549 void iavf_client_subtask(struct iavf_adapter *adapter);
550 void iavf_notify_client_message(struct iavf_vsi *vsi, u8 *msg, u16 len);
551 void iavf_notify_client_l2_params(struct iavf_vsi *vsi);
552 void iavf_notify_client_open(struct iavf_vsi *vsi);
553 void iavf_notify_client_close(struct iavf_vsi *vsi, bool reset);
554 void iavf_enable_channels(struct iavf_adapter *adapter);
555 void iavf_disable_channels(struct iavf_adapter *adapter);
556 void iavf_add_cloud_filter(struct iavf_adapter *adapter);
557 void iavf_del_cloud_filter(struct iavf_adapter *adapter);
558 void iavf_enable_vlan_stripping_v2(struct iavf_adapter *adapter, u16 tpid);
559 void iavf_disable_vlan_stripping_v2(struct iavf_adapter *adapter, u16 tpid);
560 void iavf_enable_vlan_insertion_v2(struct iavf_adapter *adapter, u16 tpid);
561 void iavf_disable_vlan_insertion_v2(struct iavf_adapter *adapter, u16 tpid);
562 void
563 iavf_set_vlan_offload_features(struct iavf_adapter *adapter,
564 			       netdev_features_t prev_features,
565 			       netdev_features_t features);
566 void iavf_add_fdir_filter(struct iavf_adapter *adapter);
567 void iavf_del_fdir_filter(struct iavf_adapter *adapter);
568 void iavf_add_adv_rss_cfg(struct iavf_adapter *adapter);
569 void iavf_del_adv_rss_cfg(struct iavf_adapter *adapter);
570 struct iavf_mac_filter *iavf_add_filter(struct iavf_adapter *adapter,
571 					const u8 *macaddr);
572 int iavf_lock_timeout(struct mutex *lock, unsigned int msecs);
573 #endif /* _IAVF_H_ */
574