xref: /openbmc/linux/drivers/net/ethernet/intel/ice/ice.h (revision c1cf3d89)
1 /* SPDX-License-Identifier: GPL-2.0 */
2 /* Copyright (c) 2018, Intel Corporation. */
3 
4 #ifndef _ICE_H_
5 #define _ICE_H_
6 
7 #include <linux/types.h>
8 #include <linux/errno.h>
9 #include <linux/kernel.h>
10 #include <linux/module.h>
11 #include <linux/firmware.h>
12 #include <linux/netdevice.h>
13 #include <linux/compiler.h>
14 #include <linux/etherdevice.h>
15 #include <linux/skbuff.h>
16 #include <linux/cpumask.h>
17 #include <linux/rtnetlink.h>
18 #include <linux/if_vlan.h>
19 #include <linux/dma-mapping.h>
20 #include <linux/pci.h>
21 #include <linux/workqueue.h>
22 #include <linux/wait.h>
23 #include <linux/aer.h>
24 #include <linux/interrupt.h>
25 #include <linux/ethtool.h>
26 #include <linux/timer.h>
27 #include <linux/delay.h>
28 #include <linux/bitmap.h>
29 #include <linux/log2.h>
30 #include <linux/ip.h>
31 #include <linux/sctp.h>
32 #include <linux/ipv6.h>
33 #include <linux/pkt_sched.h>
34 #include <linux/if_bridge.h>
35 #include <linux/ctype.h>
36 #include <linux/bpf.h>
37 #include <linux/avf/virtchnl.h>
38 #include <linux/cpu_rmap.h>
39 #include <net/devlink.h>
40 #include <net/ipv6.h>
41 #include <net/xdp_sock.h>
42 #include <net/geneve.h>
43 #include <net/gre.h>
44 #include <net/udp_tunnel.h>
45 #include <net/vxlan.h>
46 #include "ice_devids.h"
47 #include "ice_type.h"
48 #include "ice_txrx.h"
49 #include "ice_dcb.h"
50 #include "ice_switch.h"
51 #include "ice_common.h"
52 #include "ice_sched.h"
53 #include "ice_virtchnl_pf.h"
54 #include "ice_sriov.h"
55 #include "ice_fdir.h"
56 #include "ice_xsk.h"
57 #include "ice_arfs.h"
58 
59 #define ICE_BAR0		0
60 #define ICE_REQ_DESC_MULTIPLE	32
61 #define ICE_MIN_NUM_DESC	64
62 #define ICE_MAX_NUM_DESC	8160
63 #define ICE_DFLT_MIN_RX_DESC	512
64 #define ICE_DFLT_NUM_TX_DESC	256
65 #define ICE_DFLT_NUM_RX_DESC	2048
66 
67 #define ICE_DFLT_TRAFFIC_CLASS	BIT(0)
68 #define ICE_INT_NAME_STR_LEN	(IFNAMSIZ + 16)
69 #define ICE_AQ_LEN		64
70 #define ICE_MBXSQ_LEN		64
71 #define ICE_MIN_LAN_TXRX_MSIX	1
72 #define ICE_MIN_LAN_OICR_MSIX	1
73 #define ICE_MIN_MSIX		(ICE_MIN_LAN_TXRX_MSIX + ICE_MIN_LAN_OICR_MSIX)
74 #define ICE_FDIR_MSIX		1
75 #define ICE_NO_VSI		0xffff
76 #define ICE_VSI_MAP_CONTIG	0
77 #define ICE_VSI_MAP_SCATTER	1
78 #define ICE_MAX_SCATTER_TXQS	16
79 #define ICE_MAX_SCATTER_RXQS	16
80 #define ICE_Q_WAIT_RETRY_LIMIT	10
81 #define ICE_Q_WAIT_MAX_RETRY	(5 * ICE_Q_WAIT_RETRY_LIMIT)
82 #define ICE_MAX_LG_RSS_QS	256
83 #define ICE_RES_VALID_BIT	0x8000
84 #define ICE_RES_MISC_VEC_ID	(ICE_RES_VALID_BIT - 1)
85 #define ICE_INVAL_Q_INDEX	0xffff
86 #define ICE_INVAL_VFID		256
87 
88 #define ICE_MAX_RESET_WAIT		20
89 
90 #define ICE_VSIQF_HKEY_ARRAY_SIZE	((VSIQF_HKEY_MAX_INDEX + 1) *	4)
91 
92 #define ICE_DFLT_NETIF_M (NETIF_MSG_DRV | NETIF_MSG_PROBE | NETIF_MSG_LINK)
93 
94 #define ICE_MAX_MTU	(ICE_AQ_SET_MAC_FRAME_SIZE_MAX - ICE_ETH_PKT_HDR_PAD)
95 
96 #define ICE_UP_TABLE_TRANSLATE(val, i) \
97 		(((val) << ICE_AQ_VSI_UP_TABLE_UP##i##_S) & \
98 		  ICE_AQ_VSI_UP_TABLE_UP##i##_M)
99 
100 #define ICE_TX_DESC(R, i) (&(((struct ice_tx_desc *)((R)->desc))[i]))
101 #define ICE_RX_DESC(R, i) (&(((union ice_32b_rx_flex_desc *)((R)->desc))[i]))
102 #define ICE_TX_CTX_DESC(R, i) (&(((struct ice_tx_ctx_desc *)((R)->desc))[i]))
103 #define ICE_TX_FDIRDESC(R, i) (&(((struct ice_fltr_desc *)((R)->desc))[i]))
104 
105 /* Macro for each VSI in a PF */
106 #define ice_for_each_vsi(pf, i) \
107 	for ((i) = 0; (i) < (pf)->num_alloc_vsi; (i)++)
108 
109 /* Macros for each Tx/Rx ring in a VSI */
110 #define ice_for_each_txq(vsi, i) \
111 	for ((i) = 0; (i) < (vsi)->num_txq; (i)++)
112 
113 #define ice_for_each_rxq(vsi, i) \
114 	for ((i) = 0; (i) < (vsi)->num_rxq; (i)++)
115 
116 /* Macros for each allocated Tx/Rx ring whether used or not in a VSI */
117 #define ice_for_each_alloc_txq(vsi, i) \
118 	for ((i) = 0; (i) < (vsi)->alloc_txq; (i)++)
119 
120 #define ice_for_each_alloc_rxq(vsi, i) \
121 	for ((i) = 0; (i) < (vsi)->alloc_rxq; (i)++)
122 
123 #define ice_for_each_q_vector(vsi, i) \
124 	for ((i) = 0; (i) < (vsi)->num_q_vectors; (i)++)
125 
126 #define ICE_UCAST_PROMISC_BITS (ICE_PROMISC_UCAST_TX | ICE_PROMISC_MCAST_TX | \
127 				ICE_PROMISC_UCAST_RX | ICE_PROMISC_MCAST_RX)
128 
129 #define ICE_UCAST_VLAN_PROMISC_BITS (ICE_PROMISC_UCAST_TX | \
130 				     ICE_PROMISC_MCAST_TX | \
131 				     ICE_PROMISC_UCAST_RX | \
132 				     ICE_PROMISC_MCAST_RX | \
133 				     ICE_PROMISC_VLAN_TX  | \
134 				     ICE_PROMISC_VLAN_RX)
135 
136 #define ICE_MCAST_PROMISC_BITS (ICE_PROMISC_MCAST_TX | ICE_PROMISC_MCAST_RX)
137 
138 #define ICE_MCAST_VLAN_PROMISC_BITS (ICE_PROMISC_MCAST_TX | \
139 				     ICE_PROMISC_MCAST_RX | \
140 				     ICE_PROMISC_VLAN_TX  | \
141 				     ICE_PROMISC_VLAN_RX)
142 
143 #define ice_pf_to_dev(pf) (&((pf)->pdev->dev))
144 
145 struct ice_txq_meta {
146 	u32 q_teid;	/* Tx-scheduler element identifier */
147 	u16 q_id;	/* Entry in VSI's txq_map bitmap */
148 	u16 q_handle;	/* Relative index of Tx queue within TC */
149 	u16 vsi_idx;	/* VSI index that Tx queue belongs to */
150 	u8 tc;		/* TC number that Tx queue belongs to */
151 };
152 
153 struct ice_tc_info {
154 	u16 qoffset;
155 	u16 qcount_tx;
156 	u16 qcount_rx;
157 	u8 netdev_tc;
158 };
159 
160 struct ice_tc_cfg {
161 	u8 numtc; /* Total number of enabled TCs */
162 	u8 ena_tc; /* Tx map */
163 	struct ice_tc_info tc_info[ICE_MAX_TRAFFIC_CLASS];
164 };
165 
166 struct ice_res_tracker {
167 	u16 num_entries;
168 	u16 end;
169 	u16 list[1];
170 };
171 
172 struct ice_qs_cfg {
173 	struct mutex *qs_mutex;  /* will be assigned to &pf->avail_q_mutex */
174 	unsigned long *pf_map;
175 	unsigned long pf_map_size;
176 	unsigned int q_count;
177 	unsigned int scatter_count;
178 	u16 *vsi_map;
179 	u16 vsi_map_offset;
180 	u8 mapping_mode;
181 };
182 
183 struct ice_sw {
184 	struct ice_pf *pf;
185 	u16 sw_id;		/* switch ID for this switch */
186 	u16 bridge_mode;	/* VEB/VEPA/Port Virtualizer */
187 	struct ice_vsi *dflt_vsi;	/* default VSI for this switch */
188 	u8 dflt_vsi_ena:1;	/* true if above dflt_vsi is enabled */
189 };
190 
191 enum ice_state {
192 	__ICE_TESTING,
193 	__ICE_DOWN,
194 	__ICE_NEEDS_RESTART,
195 	__ICE_PREPARED_FOR_RESET,	/* set by driver when prepared */
196 	__ICE_RESET_OICR_RECV,		/* set by driver after rcv reset OICR */
197 	__ICE_DCBNL_DEVRESET,		/* set by dcbnl devreset */
198 	__ICE_PFR_REQ,			/* set by driver and peers */
199 	__ICE_CORER_REQ,		/* set by driver and peers */
200 	__ICE_GLOBR_REQ,		/* set by driver and peers */
201 	__ICE_CORER_RECV,		/* set by OICR handler */
202 	__ICE_GLOBR_RECV,		/* set by OICR handler */
203 	__ICE_EMPR_RECV,		/* set by OICR handler */
204 	__ICE_SUSPENDED,		/* set on module remove path */
205 	__ICE_RESET_FAILED,		/* set by reset/rebuild */
206 	/* When checking for the PF to be in a nominal operating state, the
207 	 * bits that are grouped at the beginning of the list need to be
208 	 * checked. Bits occurring before __ICE_STATE_NOMINAL_CHECK_BITS will
209 	 * be checked. If you need to add a bit into consideration for nominal
210 	 * operating state, it must be added before
211 	 * __ICE_STATE_NOMINAL_CHECK_BITS. Do not move this entry's position
212 	 * without appropriate consideration.
213 	 */
214 	__ICE_STATE_NOMINAL_CHECK_BITS,
215 	__ICE_ADMINQ_EVENT_PENDING,
216 	__ICE_MAILBOXQ_EVENT_PENDING,
217 	__ICE_MDD_EVENT_PENDING,
218 	__ICE_VFLR_EVENT_PENDING,
219 	__ICE_FLTR_OVERFLOW_PROMISC,
220 	__ICE_VF_DIS,
221 	__ICE_CFG_BUSY,
222 	__ICE_SERVICE_SCHED,
223 	__ICE_SERVICE_DIS,
224 	__ICE_FD_FLUSH_REQ,
225 	__ICE_OICR_INTR_DIS,		/* Global OICR interrupt disabled */
226 	__ICE_MDD_VF_PRINT_PENDING,	/* set when MDD event handle */
227 	__ICE_VF_RESETS_DISABLED,	/* disable resets during ice_remove */
228 	__ICE_LINK_DEFAULT_OVERRIDE_PENDING,
229 	__ICE_PHY_INIT_COMPLETE,
230 	__ICE_STATE_NBITS		/* must be last */
231 };
232 
233 enum ice_vsi_flags {
234 	ICE_VSI_FLAG_UMAC_FLTR_CHANGED,
235 	ICE_VSI_FLAG_MMAC_FLTR_CHANGED,
236 	ICE_VSI_FLAG_VLAN_FLTR_CHANGED,
237 	ICE_VSI_FLAG_PROMISC_CHANGED,
238 	ICE_VSI_FLAG_NBITS		/* must be last */
239 };
240 
241 /* struct that defines a VSI, associated with a dev */
242 struct ice_vsi {
243 	struct net_device *netdev;
244 	struct ice_sw *vsw;		 /* switch this VSI is on */
245 	struct ice_pf *back;		 /* back pointer to PF */
246 	struct ice_port_info *port_info; /* back pointer to port_info */
247 	struct ice_ring **rx_rings;	 /* Rx ring array */
248 	struct ice_ring **tx_rings;	 /* Tx ring array */
249 	struct ice_q_vector **q_vectors; /* q_vector array */
250 
251 	irqreturn_t (*irq_handler)(int irq, void *data);
252 
253 	u64 tx_linearize;
254 	DECLARE_BITMAP(state, __ICE_STATE_NBITS);
255 	DECLARE_BITMAP(flags, ICE_VSI_FLAG_NBITS);
256 	unsigned int current_netdev_flags;
257 	u32 tx_restart;
258 	u32 tx_busy;
259 	u32 rx_buf_failed;
260 	u32 rx_page_failed;
261 	u32 rx_gro_dropped;
262 	u16 num_q_vectors;
263 	u16 base_vector;		/* IRQ base for OS reserved vectors */
264 	enum ice_vsi_type type;
265 	u16 vsi_num;			/* HW (absolute) index of this VSI */
266 	u16 idx;			/* software index in pf->vsi[] */
267 
268 	s16 vf_id;			/* VF ID for SR-IOV VSIs */
269 
270 	u16 ethtype;			/* Ethernet protocol for pause frame */
271 	u16 num_gfltr;
272 	u16 num_bfltr;
273 
274 	/* RSS config */
275 	u16 rss_table_size;	/* HW RSS table size */
276 	u16 rss_size;		/* Allocated RSS queues */
277 	u8 *rss_hkey_user;	/* User configured hash keys */
278 	u8 *rss_lut_user;	/* User configured lookup table entries */
279 	u8 rss_lut_type;	/* used to configure Get/Set RSS LUT AQ call */
280 
281 	/* aRFS members only allocated for the PF VSI */
282 #define ICE_MAX_ARFS_LIST	1024
283 #define ICE_ARFS_LST_MASK	(ICE_MAX_ARFS_LIST - 1)
284 	struct hlist_head *arfs_fltr_list;
285 	struct ice_arfs_active_fltr_cntrs *arfs_fltr_cntrs;
286 	spinlock_t arfs_lock;	/* protects aRFS hash table and filter state */
287 	atomic_t *arfs_last_fltr_id;
288 
289 	/* devlink port data */
290 	struct devlink_port devlink_port;
291 	bool devlink_port_registered;
292 
293 	u16 max_frame;
294 	u16 rx_buf_len;
295 
296 	struct ice_aqc_vsi_props info;	 /* VSI properties */
297 
298 	/* VSI stats */
299 	struct rtnl_link_stats64 net_stats;
300 	struct ice_eth_stats eth_stats;
301 	struct ice_eth_stats eth_stats_prev;
302 
303 	struct list_head tmp_sync_list;		/* MAC filters to be synced */
304 	struct list_head tmp_unsync_list;	/* MAC filters to be unsynced */
305 
306 	u8 irqs_ready:1;
307 	u8 current_isup:1;		 /* Sync 'link up' logging */
308 	u8 stat_offsets_loaded:1;
309 	u16 num_vlan;
310 
311 	/* queue information */
312 	u8 tx_mapping_mode;		 /* ICE_MAP_MODE_[CONTIG|SCATTER] */
313 	u8 rx_mapping_mode;		 /* ICE_MAP_MODE_[CONTIG|SCATTER] */
314 	u16 *txq_map;			 /* index in pf->avail_txqs */
315 	u16 *rxq_map;			 /* index in pf->avail_rxqs */
316 	u16 alloc_txq;			 /* Allocated Tx queues */
317 	u16 num_txq;			 /* Used Tx queues */
318 	u16 alloc_rxq;			 /* Allocated Rx queues */
319 	u16 num_rxq;			 /* Used Rx queues */
320 	u16 req_txq;			 /* User requested Tx queues */
321 	u16 req_rxq;			 /* User requested Rx queues */
322 	u16 num_rx_desc;
323 	u16 num_tx_desc;
324 	struct ice_tc_cfg tc_cfg;
325 	struct bpf_prog *xdp_prog;
326 	struct ice_ring **xdp_rings;	 /* XDP ring array */
327 	u16 num_xdp_txq;		 /* Used XDP queues */
328 	u8 xdp_mapping_mode;		 /* ICE_MAP_MODE_[CONTIG|SCATTER] */
329 	struct xsk_buff_pool **xsk_pools;
330 	u16 num_xsk_pools_used;
331 	u16 num_xsk_pools;
332 } ____cacheline_internodealigned_in_smp;
333 
334 /* struct that defines an interrupt vector */
335 struct ice_q_vector {
336 	struct ice_vsi *vsi;
337 
338 	u16 v_idx;			/* index in the vsi->q_vector array. */
339 	u16 reg_idx;
340 	u8 num_ring_rx;			/* total number of Rx rings in vector */
341 	u8 num_ring_tx;			/* total number of Tx rings in vector */
342 	u8 itr_countdown;		/* when 0 should adjust adaptive ITR */
343 	/* in usecs, need to use ice_intrl_to_usecs_reg() before writing this
344 	 * value to the device
345 	 */
346 	u8 intrl;
347 
348 	struct napi_struct napi;
349 
350 	struct ice_ring_container rx;
351 	struct ice_ring_container tx;
352 
353 	cpumask_t affinity_mask;
354 	struct irq_affinity_notify affinity_notify;
355 
356 	char name[ICE_INT_NAME_STR_LEN];
357 } ____cacheline_internodealigned_in_smp;
358 
359 enum ice_pf_flags {
360 	ICE_FLAG_FLTR_SYNC,
361 	ICE_FLAG_RSS_ENA,
362 	ICE_FLAG_SRIOV_ENA,
363 	ICE_FLAG_SRIOV_CAPABLE,
364 	ICE_FLAG_DCB_CAPABLE,
365 	ICE_FLAG_DCB_ENA,
366 	ICE_FLAG_FD_ENA,
367 	ICE_FLAG_ADV_FEATURES,
368 	ICE_FLAG_LINK_DOWN_ON_CLOSE_ENA,
369 	ICE_FLAG_TOTAL_PORT_SHUTDOWN_ENA,
370 	ICE_FLAG_NO_MEDIA,
371 	ICE_FLAG_FW_LLDP_AGENT,
372 	ICE_FLAG_ETHTOOL_CTXT,		/* set when ethtool holds RTNL lock */
373 	ICE_FLAG_LEGACY_RX,
374 	ICE_FLAG_VF_TRUE_PROMISC_ENA,
375 	ICE_FLAG_MDD_AUTO_RESET_VF,
376 	ICE_FLAG_LINK_LENIENT_MODE_ENA,
377 	ICE_PF_FLAGS_NBITS		/* must be last */
378 };
379 
380 struct ice_pf {
381 	struct pci_dev *pdev;
382 
383 	struct devlink_region *nvm_region;
384 	struct devlink_region *devcaps_region;
385 
386 	/* OS reserved IRQ details */
387 	struct msix_entry *msix_entries;
388 	struct ice_res_tracker *irq_tracker;
389 	/* First MSIX vector used by SR-IOV VFs. Calculated by subtracting the
390 	 * number of MSIX vectors needed for all SR-IOV VFs from the number of
391 	 * MSIX vectors allowed on this PF.
392 	 */
393 	u16 sriov_base_vector;
394 
395 	u16 ctrl_vsi_idx;		/* control VSI index in pf->vsi array */
396 
397 	struct ice_vsi **vsi;		/* VSIs created by the driver */
398 	struct ice_sw *first_sw;	/* first switch created by firmware */
399 	/* Virtchnl/SR-IOV config info */
400 	struct ice_vf *vf;
401 	u16 num_alloc_vfs;		/* actual number of VFs allocated */
402 	u16 num_vfs_supported;		/* num VFs supported for this PF */
403 	u16 num_qps_per_vf;
404 	u16 num_msix_per_vf;
405 	/* used to ratelimit the MDD event logging */
406 	unsigned long last_printed_mdd_jiffies;
407 	DECLARE_BITMAP(state, __ICE_STATE_NBITS);
408 	DECLARE_BITMAP(flags, ICE_PF_FLAGS_NBITS);
409 	unsigned long *avail_txqs;	/* bitmap to track PF Tx queue usage */
410 	unsigned long *avail_rxqs;	/* bitmap to track PF Rx queue usage */
411 	unsigned long serv_tmr_period;
412 	unsigned long serv_tmr_prev;
413 	struct timer_list serv_tmr;
414 	struct work_struct serv_task;
415 	struct mutex avail_q_mutex;	/* protects access to avail_[rx|tx]qs */
416 	struct mutex sw_mutex;		/* lock for protecting VSI alloc flow */
417 	struct mutex tc_mutex;		/* lock to protect TC changes */
418 	u32 msg_enable;
419 
420 	/* spinlock to protect the AdminQ wait list */
421 	spinlock_t aq_wait_lock;
422 	struct hlist_head aq_wait_list;
423 	wait_queue_head_t aq_wait_queue;
424 
425 	u32 hw_csum_rx_error;
426 	u16 oicr_idx;		/* Other interrupt cause MSIX vector index */
427 	u16 num_avail_sw_msix;	/* remaining MSIX SW vectors left unclaimed */
428 	u16 max_pf_txqs;	/* Total Tx queues PF wide */
429 	u16 max_pf_rxqs;	/* Total Rx queues PF wide */
430 	u16 num_lan_msix;	/* Total MSIX vectors for base driver */
431 	u16 num_lan_tx;		/* num LAN Tx queues setup */
432 	u16 num_lan_rx;		/* num LAN Rx queues setup */
433 	u16 next_vsi;		/* Next free slot in pf->vsi[] - 0-based! */
434 	u16 num_alloc_vsi;
435 	u16 corer_count;	/* Core reset count */
436 	u16 globr_count;	/* Global reset count */
437 	u16 empr_count;		/* EMP reset count */
438 	u16 pfr_count;		/* PF reset count */
439 
440 	u8 wol_ena : 1;		/* software state of WoL */
441 	u32 wakeup_reason;	/* last wakeup reason */
442 	struct ice_hw_port_stats stats;
443 	struct ice_hw_port_stats stats_prev;
444 	struct ice_hw hw;
445 	u8 stat_prev_loaded:1; /* has previous stats been loaded */
446 #ifdef CONFIG_DCB
447 	u16 dcbx_cap;
448 #endif /* CONFIG_DCB */
449 	u32 tx_timeout_count;
450 	unsigned long tx_timeout_last_recovery;
451 	u32 tx_timeout_recovery_level;
452 	char int_name[ICE_INT_NAME_STR_LEN];
453 	u32 sw_int_count;
454 
455 	__le64 nvm_phy_type_lo; /* NVM PHY type low */
456 	__le64 nvm_phy_type_hi; /* NVM PHY type high */
457 	struct ice_link_default_override_tlv link_dflt_override;
458 };
459 
460 struct ice_netdev_priv {
461 	struct ice_vsi *vsi;
462 };
463 
464 /**
465  * ice_irq_dynamic_ena - Enable default interrupt generation settings
466  * @hw: pointer to HW struct
467  * @vsi: pointer to VSI struct, can be NULL
468  * @q_vector: pointer to q_vector, can be NULL
469  */
470 static inline void
471 ice_irq_dynamic_ena(struct ice_hw *hw, struct ice_vsi *vsi,
472 		    struct ice_q_vector *q_vector)
473 {
474 	u32 vector = (vsi && q_vector) ? q_vector->reg_idx :
475 				((struct ice_pf *)hw->back)->oicr_idx;
476 	int itr = ICE_ITR_NONE;
477 	u32 val;
478 
479 	/* clear the PBA here, as this function is meant to clean out all
480 	 * previous interrupts and enable the interrupt
481 	 */
482 	val = GLINT_DYN_CTL_INTENA_M | GLINT_DYN_CTL_CLEARPBA_M |
483 	      (itr << GLINT_DYN_CTL_ITR_INDX_S);
484 	if (vsi)
485 		if (test_bit(__ICE_DOWN, vsi->state))
486 			return;
487 	wr32(hw, GLINT_DYN_CTL(vector), val);
488 }
489 
490 /**
491  * ice_netdev_to_pf - Retrieve the PF struct associated with a netdev
492  * @netdev: pointer to the netdev struct
493  */
494 static inline struct ice_pf *ice_netdev_to_pf(struct net_device *netdev)
495 {
496 	struct ice_netdev_priv *np = netdev_priv(netdev);
497 
498 	return np->vsi->back;
499 }
500 
501 static inline bool ice_is_xdp_ena_vsi(struct ice_vsi *vsi)
502 {
503 	return !!vsi->xdp_prog;
504 }
505 
506 static inline void ice_set_ring_xdp(struct ice_ring *ring)
507 {
508 	ring->flags |= ICE_TX_FLAGS_RING_XDP;
509 }
510 
511 /**
512  * ice_xsk_pool - get XSK buffer pool bound to a ring
513  * @ring: ring to use
514  *
515  * Returns a pointer to xdp_umem structure if there is a buffer pool present,
516  * NULL otherwise.
517  */
518 static inline struct xsk_buff_pool *ice_xsk_pool(struct ice_ring *ring)
519 {
520 	struct xsk_buff_pool **pools = ring->vsi->xsk_pools;
521 	u16 qid = ring->q_index;
522 
523 	if (ice_ring_is_xdp(ring))
524 		qid -= ring->vsi->num_xdp_txq;
525 
526 	if (qid >= ring->vsi->num_xsk_pools || !pools || !pools[qid] ||
527 	    !ice_is_xdp_ena_vsi(ring->vsi))
528 		return NULL;
529 
530 	return pools[qid];
531 }
532 
533 /**
534  * ice_get_main_vsi - Get the PF VSI
535  * @pf: PF instance
536  *
537  * returns pf->vsi[0], which by definition is the PF VSI
538  */
539 static inline struct ice_vsi *ice_get_main_vsi(struct ice_pf *pf)
540 {
541 	if (pf->vsi)
542 		return pf->vsi[0];
543 
544 	return NULL;
545 }
546 
547 /**
548  * ice_get_ctrl_vsi - Get the control VSI
549  * @pf: PF instance
550  */
551 static inline struct ice_vsi *ice_get_ctrl_vsi(struct ice_pf *pf)
552 {
553 	/* if pf->ctrl_vsi_idx is ICE_NO_VSI, control VSI was not set up */
554 	if (!pf->vsi || pf->ctrl_vsi_idx == ICE_NO_VSI)
555 		return NULL;
556 
557 	return pf->vsi[pf->ctrl_vsi_idx];
558 }
559 
560 #define ICE_FD_STAT_CTR_BLOCK_COUNT	256
561 #define ICE_FD_STAT_PF_IDX(base_idx) \
562 			((base_idx) * ICE_FD_STAT_CTR_BLOCK_COUNT)
563 #define ICE_FD_SB_STAT_IDX(base_idx) ICE_FD_STAT_PF_IDX(base_idx)
564 
565 int ice_vsi_setup_tx_rings(struct ice_vsi *vsi);
566 int ice_vsi_setup_rx_rings(struct ice_vsi *vsi);
567 int ice_vsi_open_ctrl(struct ice_vsi *vsi);
568 void ice_set_ethtool_ops(struct net_device *netdev);
569 void ice_set_ethtool_safe_mode_ops(struct net_device *netdev);
570 u16 ice_get_avail_txq_count(struct ice_pf *pf);
571 u16 ice_get_avail_rxq_count(struct ice_pf *pf);
572 int ice_vsi_recfg_qs(struct ice_vsi *vsi, int new_rx, int new_tx);
573 void ice_update_vsi_stats(struct ice_vsi *vsi);
574 void ice_update_pf_stats(struct ice_pf *pf);
575 int ice_up(struct ice_vsi *vsi);
576 int ice_down(struct ice_vsi *vsi);
577 int ice_vsi_cfg(struct ice_vsi *vsi);
578 struct ice_vsi *ice_lb_vsi_setup(struct ice_pf *pf, struct ice_port_info *pi);
579 int ice_prepare_xdp_rings(struct ice_vsi *vsi, struct bpf_prog *prog);
580 int ice_destroy_xdp_rings(struct ice_vsi *vsi);
581 int
582 ice_xdp_xmit(struct net_device *dev, int n, struct xdp_frame **frames,
583 	     u32 flags);
584 int ice_set_rss(struct ice_vsi *vsi, u8 *seed, u8 *lut, u16 lut_size);
585 int ice_get_rss(struct ice_vsi *vsi, u8 *seed, u8 *lut, u16 lut_size);
586 void ice_fill_rss_lut(u8 *lut, u16 rss_table_size, u16 rss_size);
587 int ice_schedule_reset(struct ice_pf *pf, enum ice_reset_req reset);
588 void ice_print_link_msg(struct ice_vsi *vsi, bool isup);
589 const char *ice_stat_str(enum ice_status stat_err);
590 const char *ice_aq_str(enum ice_aq_err aq_err);
591 bool ice_is_wol_supported(struct ice_pf *pf);
592 int
593 ice_fdir_write_fltr(struct ice_pf *pf, struct ice_fdir_fltr *input, bool add,
594 		    bool is_tun);
595 void ice_vsi_manage_fdir(struct ice_vsi *vsi, bool ena);
596 int ice_add_fdir_ethtool(struct ice_vsi *vsi, struct ethtool_rxnfc *cmd);
597 int ice_del_fdir_ethtool(struct ice_vsi *vsi, struct ethtool_rxnfc *cmd);
598 int ice_get_ethtool_fdir_entry(struct ice_hw *hw, struct ethtool_rxnfc *cmd);
599 int
600 ice_get_fdir_fltr_ids(struct ice_hw *hw, struct ethtool_rxnfc *cmd,
601 		      u32 *rule_locs);
602 void ice_fdir_release_flows(struct ice_hw *hw);
603 void ice_fdir_replay_flows(struct ice_hw *hw);
604 void ice_fdir_replay_fltrs(struct ice_pf *pf);
605 int ice_fdir_create_dflt_rules(struct ice_pf *pf);
606 int ice_aq_wait_for_event(struct ice_pf *pf, u16 opcode, unsigned long timeout,
607 			  struct ice_rq_event_info *event);
608 int ice_open(struct net_device *netdev);
609 int ice_stop(struct net_device *netdev);
610 void ice_service_task_schedule(struct ice_pf *pf);
611 
612 #endif /* _ICE_H_ */
613