xref: /openbmc/linux/drivers/net/ethernet/intel/ice/ice.h (revision b8265621)
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/aer.h>
23 #include <linux/interrupt.h>
24 #include <linux/ethtool.h>
25 #include <linux/timer.h>
26 #include <linux/delay.h>
27 #include <linux/bitmap.h>
28 #include <linux/log2.h>
29 #include <linux/ip.h>
30 #include <linux/sctp.h>
31 #include <linux/ipv6.h>
32 #include <linux/pkt_sched.h>
33 #include <linux/if_bridge.h>
34 #include <linux/ctype.h>
35 #include <linux/bpf.h>
36 #include <linux/avf/virtchnl.h>
37 #include <linux/cpu_rmap.h>
38 #include <net/devlink.h>
39 #include <net/ipv6.h>
40 #include <net/xdp_sock.h>
41 #include <net/geneve.h>
42 #include <net/gre.h>
43 #include <net/udp_tunnel.h>
44 #include <net/vxlan.h>
45 #include "ice_devids.h"
46 #include "ice_type.h"
47 #include "ice_txrx.h"
48 #include "ice_dcb.h"
49 #include "ice_switch.h"
50 #include "ice_common.h"
51 #include "ice_sched.h"
52 #include "ice_virtchnl_pf.h"
53 #include "ice_sriov.h"
54 #include "ice_fdir.h"
55 #include "ice_xsk.h"
56 #include "ice_arfs.h"
57 
58 #define ICE_BAR0		0
59 #define ICE_REQ_DESC_MULTIPLE	32
60 #define ICE_MIN_NUM_DESC	64
61 #define ICE_MAX_NUM_DESC	8160
62 #define ICE_DFLT_MIN_RX_DESC	512
63 #define ICE_DFLT_NUM_TX_DESC	256
64 #define ICE_DFLT_NUM_RX_DESC	2048
65 
66 #define ICE_DFLT_TRAFFIC_CLASS	BIT(0)
67 #define ICE_INT_NAME_STR_LEN	(IFNAMSIZ + 16)
68 #define ICE_AQ_LEN		64
69 #define ICE_MBXSQ_LEN		64
70 #define ICE_MIN_MSIX		2
71 #define ICE_FDIR_MSIX		1
72 #define ICE_NO_VSI		0xffff
73 #define ICE_VSI_MAP_CONTIG	0
74 #define ICE_VSI_MAP_SCATTER	1
75 #define ICE_MAX_SCATTER_TXQS	16
76 #define ICE_MAX_SCATTER_RXQS	16
77 #define ICE_Q_WAIT_RETRY_LIMIT	10
78 #define ICE_Q_WAIT_MAX_RETRY	(5 * ICE_Q_WAIT_RETRY_LIMIT)
79 #define ICE_MAX_LG_RSS_QS	256
80 #define ICE_RES_VALID_BIT	0x8000
81 #define ICE_RES_MISC_VEC_ID	(ICE_RES_VALID_BIT - 1)
82 #define ICE_INVAL_Q_INDEX	0xffff
83 #define ICE_INVAL_VFID		256
84 
85 #define ICE_MAX_RESET_WAIT		20
86 
87 #define ICE_VSIQF_HKEY_ARRAY_SIZE	((VSIQF_HKEY_MAX_INDEX + 1) *	4)
88 
89 #define ICE_DFLT_NETIF_M (NETIF_MSG_DRV | NETIF_MSG_PROBE | NETIF_MSG_LINK)
90 
91 #define ICE_MAX_MTU	(ICE_AQ_SET_MAC_FRAME_SIZE_MAX - ICE_ETH_PKT_HDR_PAD)
92 
93 #define ICE_UP_TABLE_TRANSLATE(val, i) \
94 		(((val) << ICE_AQ_VSI_UP_TABLE_UP##i##_S) & \
95 		  ICE_AQ_VSI_UP_TABLE_UP##i##_M)
96 
97 #define ICE_TX_DESC(R, i) (&(((struct ice_tx_desc *)((R)->desc))[i]))
98 #define ICE_RX_DESC(R, i) (&(((union ice_32b_rx_flex_desc *)((R)->desc))[i]))
99 #define ICE_TX_CTX_DESC(R, i) (&(((struct ice_tx_ctx_desc *)((R)->desc))[i]))
100 #define ICE_TX_FDIRDESC(R, i) (&(((struct ice_fltr_desc *)((R)->desc))[i]))
101 
102 /* Macro for each VSI in a PF */
103 #define ice_for_each_vsi(pf, i) \
104 	for ((i) = 0; (i) < (pf)->num_alloc_vsi; (i)++)
105 
106 /* Macros for each Tx/Rx ring in a VSI */
107 #define ice_for_each_txq(vsi, i) \
108 	for ((i) = 0; (i) < (vsi)->num_txq; (i)++)
109 
110 #define ice_for_each_rxq(vsi, i) \
111 	for ((i) = 0; (i) < (vsi)->num_rxq; (i)++)
112 
113 /* Macros for each allocated Tx/Rx ring whether used or not in a VSI */
114 #define ice_for_each_alloc_txq(vsi, i) \
115 	for ((i) = 0; (i) < (vsi)->alloc_txq; (i)++)
116 
117 #define ice_for_each_alloc_rxq(vsi, i) \
118 	for ((i) = 0; (i) < (vsi)->alloc_rxq; (i)++)
119 
120 #define ice_for_each_q_vector(vsi, i) \
121 	for ((i) = 0; (i) < (vsi)->num_q_vectors; (i)++)
122 
123 #define ICE_UCAST_PROMISC_BITS (ICE_PROMISC_UCAST_TX | ICE_PROMISC_MCAST_TX | \
124 				ICE_PROMISC_UCAST_RX | ICE_PROMISC_MCAST_RX)
125 
126 #define ICE_UCAST_VLAN_PROMISC_BITS (ICE_PROMISC_UCAST_TX | \
127 				     ICE_PROMISC_MCAST_TX | \
128 				     ICE_PROMISC_UCAST_RX | \
129 				     ICE_PROMISC_MCAST_RX | \
130 				     ICE_PROMISC_VLAN_TX  | \
131 				     ICE_PROMISC_VLAN_RX)
132 
133 #define ICE_MCAST_PROMISC_BITS (ICE_PROMISC_MCAST_TX | ICE_PROMISC_MCAST_RX)
134 
135 #define ICE_MCAST_VLAN_PROMISC_BITS (ICE_PROMISC_MCAST_TX | \
136 				     ICE_PROMISC_MCAST_RX | \
137 				     ICE_PROMISC_VLAN_TX  | \
138 				     ICE_PROMISC_VLAN_RX)
139 
140 #define ice_pf_to_dev(pf) (&((pf)->pdev->dev))
141 
142 struct ice_txq_meta {
143 	u32 q_teid;	/* Tx-scheduler element identifier */
144 	u16 q_id;	/* Entry in VSI's txq_map bitmap */
145 	u16 q_handle;	/* Relative index of Tx queue within TC */
146 	u16 vsi_idx;	/* VSI index that Tx queue belongs to */
147 	u8 tc;		/* TC number that Tx queue belongs to */
148 };
149 
150 struct ice_tc_info {
151 	u16 qoffset;
152 	u16 qcount_tx;
153 	u16 qcount_rx;
154 	u8 netdev_tc;
155 };
156 
157 struct ice_tc_cfg {
158 	u8 numtc; /* Total number of enabled TCs */
159 	u8 ena_tc; /* Tx map */
160 	struct ice_tc_info tc_info[ICE_MAX_TRAFFIC_CLASS];
161 };
162 
163 struct ice_res_tracker {
164 	u16 num_entries;
165 	u16 end;
166 	u16 list[1];
167 };
168 
169 struct ice_qs_cfg {
170 	struct mutex *qs_mutex;  /* will be assigned to &pf->avail_q_mutex */
171 	unsigned long *pf_map;
172 	unsigned long pf_map_size;
173 	unsigned int q_count;
174 	unsigned int scatter_count;
175 	u16 *vsi_map;
176 	u16 vsi_map_offset;
177 	u8 mapping_mode;
178 };
179 
180 struct ice_sw {
181 	struct ice_pf *pf;
182 	u16 sw_id;		/* switch ID for this switch */
183 	u16 bridge_mode;	/* VEB/VEPA/Port Virtualizer */
184 	struct ice_vsi *dflt_vsi;	/* default VSI for this switch */
185 	u8 dflt_vsi_ena:1;	/* true if above dflt_vsi is enabled */
186 };
187 
188 enum ice_state {
189 	__ICE_TESTING,
190 	__ICE_DOWN,
191 	__ICE_NEEDS_RESTART,
192 	__ICE_PREPARED_FOR_RESET,	/* set by driver when prepared */
193 	__ICE_RESET_OICR_RECV,		/* set by driver after rcv reset OICR */
194 	__ICE_DCBNL_DEVRESET,		/* set by dcbnl devreset */
195 	__ICE_PFR_REQ,			/* set by driver and peers */
196 	__ICE_CORER_REQ,		/* set by driver and peers */
197 	__ICE_GLOBR_REQ,		/* set by driver and peers */
198 	__ICE_CORER_RECV,		/* set by OICR handler */
199 	__ICE_GLOBR_RECV,		/* set by OICR handler */
200 	__ICE_EMPR_RECV,		/* set by OICR handler */
201 	__ICE_SUSPENDED,		/* set on module remove path */
202 	__ICE_RESET_FAILED,		/* set by reset/rebuild */
203 	/* When checking for the PF to be in a nominal operating state, the
204 	 * bits that are grouped at the beginning of the list need to be
205 	 * checked. Bits occurring before __ICE_STATE_NOMINAL_CHECK_BITS will
206 	 * be checked. If you need to add a bit into consideration for nominal
207 	 * operating state, it must be added before
208 	 * __ICE_STATE_NOMINAL_CHECK_BITS. Do not move this entry's position
209 	 * without appropriate consideration.
210 	 */
211 	__ICE_STATE_NOMINAL_CHECK_BITS,
212 	__ICE_ADMINQ_EVENT_PENDING,
213 	__ICE_MAILBOXQ_EVENT_PENDING,
214 	__ICE_MDD_EVENT_PENDING,
215 	__ICE_VFLR_EVENT_PENDING,
216 	__ICE_FLTR_OVERFLOW_PROMISC,
217 	__ICE_VF_DIS,
218 	__ICE_CFG_BUSY,
219 	__ICE_SERVICE_SCHED,
220 	__ICE_SERVICE_DIS,
221 	__ICE_FD_FLUSH_REQ,
222 	__ICE_OICR_INTR_DIS,		/* Global OICR interrupt disabled */
223 	__ICE_MDD_VF_PRINT_PENDING,	/* set when MDD event handle */
224 	__ICE_VF_RESETS_DISABLED,	/* disable resets during ice_remove */
225 	__ICE_LINK_DEFAULT_OVERRIDE_PENDING,
226 	__ICE_PHY_INIT_COMPLETE,
227 	__ICE_STATE_NBITS		/* must be last */
228 };
229 
230 enum ice_vsi_flags {
231 	ICE_VSI_FLAG_UMAC_FLTR_CHANGED,
232 	ICE_VSI_FLAG_MMAC_FLTR_CHANGED,
233 	ICE_VSI_FLAG_VLAN_FLTR_CHANGED,
234 	ICE_VSI_FLAG_PROMISC_CHANGED,
235 	ICE_VSI_FLAG_NBITS		/* must be last */
236 };
237 
238 /* struct that defines a VSI, associated with a dev */
239 struct ice_vsi {
240 	struct net_device *netdev;
241 	struct ice_sw *vsw;		 /* switch this VSI is on */
242 	struct ice_pf *back;		 /* back pointer to PF */
243 	struct ice_port_info *port_info; /* back pointer to port_info */
244 	struct ice_ring **rx_rings;	 /* Rx ring array */
245 	struct ice_ring **tx_rings;	 /* Tx ring array */
246 	struct ice_q_vector **q_vectors; /* q_vector array */
247 
248 	irqreturn_t (*irq_handler)(int irq, void *data);
249 
250 	u64 tx_linearize;
251 	DECLARE_BITMAP(state, __ICE_STATE_NBITS);
252 	DECLARE_BITMAP(flags, ICE_VSI_FLAG_NBITS);
253 	unsigned int current_netdev_flags;
254 	u32 tx_restart;
255 	u32 tx_busy;
256 	u32 rx_buf_failed;
257 	u32 rx_page_failed;
258 	u16 num_q_vectors;
259 	u16 base_vector;		/* IRQ base for OS reserved vectors */
260 	enum ice_vsi_type type;
261 	u16 vsi_num;			/* HW (absolute) index of this VSI */
262 	u16 idx;			/* software index in pf->vsi[] */
263 
264 	s16 vf_id;			/* VF ID for SR-IOV VSIs */
265 
266 	u16 ethtype;			/* Ethernet protocol for pause frame */
267 	u16 num_gfltr;
268 	u16 num_bfltr;
269 
270 	/* RSS config */
271 	u16 rss_table_size;	/* HW RSS table size */
272 	u16 rss_size;		/* Allocated RSS queues */
273 	u8 *rss_hkey_user;	/* User configured hash keys */
274 	u8 *rss_lut_user;	/* User configured lookup table entries */
275 	u8 rss_lut_type;	/* used to configure Get/Set RSS LUT AQ call */
276 
277 	/* aRFS members only allocated for the PF VSI */
278 #define ICE_MAX_ARFS_LIST	1024
279 #define ICE_ARFS_LST_MASK	(ICE_MAX_ARFS_LIST - 1)
280 	struct hlist_head *arfs_fltr_list;
281 	struct ice_arfs_active_fltr_cntrs *arfs_fltr_cntrs;
282 	spinlock_t arfs_lock;	/* protects aRFS hash table and filter state */
283 	atomic_t *arfs_last_fltr_id;
284 
285 	u16 max_frame;
286 	u16 rx_buf_len;
287 
288 	struct ice_aqc_vsi_props info;	 /* VSI properties */
289 
290 	/* VSI stats */
291 	struct rtnl_link_stats64 net_stats;
292 	struct ice_eth_stats eth_stats;
293 	struct ice_eth_stats eth_stats_prev;
294 
295 	struct list_head tmp_sync_list;		/* MAC filters to be synced */
296 	struct list_head tmp_unsync_list;	/* MAC filters to be unsynced */
297 
298 	u8 irqs_ready:1;
299 	u8 current_isup:1;		 /* Sync 'link up' logging */
300 	u8 stat_offsets_loaded:1;
301 	u8 vlan_ena:1;
302 	u16 num_vlan;
303 
304 	/* queue information */
305 	u8 tx_mapping_mode;		 /* ICE_MAP_MODE_[CONTIG|SCATTER] */
306 	u8 rx_mapping_mode;		 /* ICE_MAP_MODE_[CONTIG|SCATTER] */
307 	u16 *txq_map;			 /* index in pf->avail_txqs */
308 	u16 *rxq_map;			 /* index in pf->avail_rxqs */
309 	u16 alloc_txq;			 /* Allocated Tx queues */
310 	u16 num_txq;			 /* Used Tx queues */
311 	u16 alloc_rxq;			 /* Allocated Rx queues */
312 	u16 num_rxq;			 /* Used Rx queues */
313 	u16 req_txq;			 /* User requested Tx queues */
314 	u16 req_rxq;			 /* User requested Rx queues */
315 	u16 num_rx_desc;
316 	u16 num_tx_desc;
317 	struct ice_tc_cfg tc_cfg;
318 	struct bpf_prog *xdp_prog;
319 	struct ice_ring **xdp_rings;	 /* XDP ring array */
320 	u16 num_xdp_txq;		 /* Used XDP queues */
321 	u8 xdp_mapping_mode;		 /* ICE_MAP_MODE_[CONTIG|SCATTER] */
322 	struct xdp_umem **xsk_umems;
323 	u16 num_xsk_umems_used;
324 	u16 num_xsk_umems;
325 } ____cacheline_internodealigned_in_smp;
326 
327 /* struct that defines an interrupt vector */
328 struct ice_q_vector {
329 	struct ice_vsi *vsi;
330 
331 	u16 v_idx;			/* index in the vsi->q_vector array. */
332 	u16 reg_idx;
333 	u8 num_ring_rx;			/* total number of Rx rings in vector */
334 	u8 num_ring_tx;			/* total number of Tx rings in vector */
335 	u8 itr_countdown;		/* when 0 should adjust adaptive ITR */
336 	/* in usecs, need to use ice_intrl_to_usecs_reg() before writing this
337 	 * value to the device
338 	 */
339 	u8 intrl;
340 
341 	struct napi_struct napi;
342 
343 	struct ice_ring_container rx;
344 	struct ice_ring_container tx;
345 
346 	cpumask_t affinity_mask;
347 	struct irq_affinity_notify affinity_notify;
348 
349 	char name[ICE_INT_NAME_STR_LEN];
350 } ____cacheline_internodealigned_in_smp;
351 
352 enum ice_pf_flags {
353 	ICE_FLAG_FLTR_SYNC,
354 	ICE_FLAG_RSS_ENA,
355 	ICE_FLAG_SRIOV_ENA,
356 	ICE_FLAG_SRIOV_CAPABLE,
357 	ICE_FLAG_DCB_CAPABLE,
358 	ICE_FLAG_DCB_ENA,
359 	ICE_FLAG_FD_ENA,
360 	ICE_FLAG_ADV_FEATURES,
361 	ICE_FLAG_LINK_DOWN_ON_CLOSE_ENA,
362 	ICE_FLAG_TOTAL_PORT_SHUTDOWN_ENA,
363 	ICE_FLAG_NO_MEDIA,
364 	ICE_FLAG_FW_LLDP_AGENT,
365 	ICE_FLAG_ETHTOOL_CTXT,		/* set when ethtool holds RTNL lock */
366 	ICE_FLAG_LEGACY_RX,
367 	ICE_FLAG_VF_TRUE_PROMISC_ENA,
368 	ICE_FLAG_MDD_AUTO_RESET_VF,
369 	ICE_FLAG_LINK_LENIENT_MODE_ENA,
370 	ICE_PF_FLAGS_NBITS		/* must be last */
371 };
372 
373 struct ice_pf {
374 	struct pci_dev *pdev;
375 
376 	/* devlink port data */
377 	struct devlink_port devlink_port;
378 
379 	struct devlink_region *nvm_region;
380 	struct devlink_region *devcaps_region;
381 
382 	/* OS reserved IRQ details */
383 	struct msix_entry *msix_entries;
384 	struct ice_res_tracker *irq_tracker;
385 	/* First MSIX vector used by SR-IOV VFs. Calculated by subtracting the
386 	 * number of MSIX vectors needed for all SR-IOV VFs from the number of
387 	 * MSIX vectors allowed on this PF.
388 	 */
389 	u16 sriov_base_vector;
390 
391 	u16 ctrl_vsi_idx;		/* control VSI index in pf->vsi array */
392 
393 	struct ice_vsi **vsi;		/* VSIs created by the driver */
394 	struct ice_sw *first_sw;	/* first switch created by firmware */
395 	/* Virtchnl/SR-IOV config info */
396 	struct ice_vf *vf;
397 	u16 num_alloc_vfs;		/* actual number of VFs allocated */
398 	u16 num_vfs_supported;		/* num VFs supported for this PF */
399 	u16 num_qps_per_vf;
400 	u16 num_msix_per_vf;
401 	/* used to ratelimit the MDD event logging */
402 	unsigned long last_printed_mdd_jiffies;
403 	DECLARE_BITMAP(state, __ICE_STATE_NBITS);
404 	DECLARE_BITMAP(flags, ICE_PF_FLAGS_NBITS);
405 	unsigned long *avail_txqs;	/* bitmap to track PF Tx queue usage */
406 	unsigned long *avail_rxqs;	/* bitmap to track PF Rx queue usage */
407 	unsigned long serv_tmr_period;
408 	unsigned long serv_tmr_prev;
409 	struct timer_list serv_tmr;
410 	struct work_struct serv_task;
411 	struct mutex avail_q_mutex;	/* protects access to avail_[rx|tx]qs */
412 	struct mutex sw_mutex;		/* lock for protecting VSI alloc flow */
413 	struct mutex tc_mutex;		/* lock to protect TC changes */
414 	u32 msg_enable;
415 	u32 hw_csum_rx_error;
416 	u16 oicr_idx;		/* Other interrupt cause MSIX vector index */
417 	u16 num_avail_sw_msix;	/* remaining MSIX SW vectors left unclaimed */
418 	u16 max_pf_txqs;	/* Total Tx queues PF wide */
419 	u16 max_pf_rxqs;	/* Total Rx queues PF wide */
420 	u16 num_lan_msix;	/* Total MSIX vectors for base driver */
421 	u16 num_lan_tx;		/* num LAN Tx queues setup */
422 	u16 num_lan_rx;		/* num LAN Rx queues setup */
423 	u16 next_vsi;		/* Next free slot in pf->vsi[] - 0-based! */
424 	u16 num_alloc_vsi;
425 	u16 corer_count;	/* Core reset count */
426 	u16 globr_count;	/* Global reset count */
427 	u16 empr_count;		/* EMP reset count */
428 	u16 pfr_count;		/* PF reset count */
429 
430 	u8 wol_ena : 1;		/* software state of WoL */
431 	u32 wakeup_reason;	/* last wakeup reason */
432 	struct ice_hw_port_stats stats;
433 	struct ice_hw_port_stats stats_prev;
434 	struct ice_hw hw;
435 	u8 stat_prev_loaded:1; /* has previous stats been loaded */
436 #ifdef CONFIG_DCB
437 	u16 dcbx_cap;
438 #endif /* CONFIG_DCB */
439 	u32 tx_timeout_count;
440 	unsigned long tx_timeout_last_recovery;
441 	u32 tx_timeout_recovery_level;
442 	char int_name[ICE_INT_NAME_STR_LEN];
443 	u32 sw_int_count;
444 
445 	__le64 nvm_phy_type_lo; /* NVM PHY type low */
446 	__le64 nvm_phy_type_hi; /* NVM PHY type high */
447 	struct ice_link_default_override_tlv link_dflt_override;
448 };
449 
450 struct ice_netdev_priv {
451 	struct ice_vsi *vsi;
452 };
453 
454 /**
455  * ice_irq_dynamic_ena - Enable default interrupt generation settings
456  * @hw: pointer to HW struct
457  * @vsi: pointer to VSI struct, can be NULL
458  * @q_vector: pointer to q_vector, can be NULL
459  */
460 static inline void
461 ice_irq_dynamic_ena(struct ice_hw *hw, struct ice_vsi *vsi,
462 		    struct ice_q_vector *q_vector)
463 {
464 	u32 vector = (vsi && q_vector) ? q_vector->reg_idx :
465 				((struct ice_pf *)hw->back)->oicr_idx;
466 	int itr = ICE_ITR_NONE;
467 	u32 val;
468 
469 	/* clear the PBA here, as this function is meant to clean out all
470 	 * previous interrupts and enable the interrupt
471 	 */
472 	val = GLINT_DYN_CTL_INTENA_M | GLINT_DYN_CTL_CLEARPBA_M |
473 	      (itr << GLINT_DYN_CTL_ITR_INDX_S);
474 	if (vsi)
475 		if (test_bit(__ICE_DOWN, vsi->state))
476 			return;
477 	wr32(hw, GLINT_DYN_CTL(vector), val);
478 }
479 
480 /**
481  * ice_netdev_to_pf - Retrieve the PF struct associated with a netdev
482  * @netdev: pointer to the netdev struct
483  */
484 static inline struct ice_pf *ice_netdev_to_pf(struct net_device *netdev)
485 {
486 	struct ice_netdev_priv *np = netdev_priv(netdev);
487 
488 	return np->vsi->back;
489 }
490 
491 static inline bool ice_is_xdp_ena_vsi(struct ice_vsi *vsi)
492 {
493 	return !!vsi->xdp_prog;
494 }
495 
496 static inline void ice_set_ring_xdp(struct ice_ring *ring)
497 {
498 	ring->flags |= ICE_TX_FLAGS_RING_XDP;
499 }
500 
501 /**
502  * ice_xsk_umem - get XDP UMEM bound to a ring
503  * @ring - ring to use
504  *
505  * Returns a pointer to xdp_umem structure if there is an UMEM present,
506  * NULL otherwise.
507  */
508 static inline struct xdp_umem *ice_xsk_umem(struct ice_ring *ring)
509 {
510 	struct xdp_umem **umems = ring->vsi->xsk_umems;
511 	u16 qid = ring->q_index;
512 
513 	if (ice_ring_is_xdp(ring))
514 		qid -= ring->vsi->num_xdp_txq;
515 
516 	if (qid >= ring->vsi->num_xsk_umems || !umems || !umems[qid] ||
517 	    !ice_is_xdp_ena_vsi(ring->vsi))
518 		return NULL;
519 
520 	return umems[qid];
521 }
522 
523 /**
524  * ice_get_main_vsi - Get the PF VSI
525  * @pf: PF instance
526  *
527  * returns pf->vsi[0], which by definition is the PF VSI
528  */
529 static inline struct ice_vsi *ice_get_main_vsi(struct ice_pf *pf)
530 {
531 	if (pf->vsi)
532 		return pf->vsi[0];
533 
534 	return NULL;
535 }
536 
537 /**
538  * ice_get_ctrl_vsi - Get the control VSI
539  * @pf: PF instance
540  */
541 static inline struct ice_vsi *ice_get_ctrl_vsi(struct ice_pf *pf)
542 {
543 	/* if pf->ctrl_vsi_idx is ICE_NO_VSI, control VSI was not set up */
544 	if (!pf->vsi || pf->ctrl_vsi_idx == ICE_NO_VSI)
545 		return NULL;
546 
547 	return pf->vsi[pf->ctrl_vsi_idx];
548 }
549 
550 #define ICE_FD_STAT_CTR_BLOCK_COUNT	256
551 #define ICE_FD_STAT_PF_IDX(base_idx) \
552 			((base_idx) * ICE_FD_STAT_CTR_BLOCK_COUNT)
553 #define ICE_FD_SB_STAT_IDX(base_idx) ICE_FD_STAT_PF_IDX(base_idx)
554 
555 int ice_vsi_setup_tx_rings(struct ice_vsi *vsi);
556 int ice_vsi_setup_rx_rings(struct ice_vsi *vsi);
557 int ice_vsi_open_ctrl(struct ice_vsi *vsi);
558 void ice_set_ethtool_ops(struct net_device *netdev);
559 void ice_set_ethtool_safe_mode_ops(struct net_device *netdev);
560 u16 ice_get_avail_txq_count(struct ice_pf *pf);
561 u16 ice_get_avail_rxq_count(struct ice_pf *pf);
562 int ice_vsi_recfg_qs(struct ice_vsi *vsi, int new_rx, int new_tx);
563 void ice_update_vsi_stats(struct ice_vsi *vsi);
564 void ice_update_pf_stats(struct ice_pf *pf);
565 int ice_up(struct ice_vsi *vsi);
566 int ice_down(struct ice_vsi *vsi);
567 int ice_vsi_cfg(struct ice_vsi *vsi);
568 struct ice_vsi *ice_lb_vsi_setup(struct ice_pf *pf, struct ice_port_info *pi);
569 int ice_prepare_xdp_rings(struct ice_vsi *vsi, struct bpf_prog *prog);
570 int ice_destroy_xdp_rings(struct ice_vsi *vsi);
571 int
572 ice_xdp_xmit(struct net_device *dev, int n, struct xdp_frame **frames,
573 	     u32 flags);
574 int ice_set_rss(struct ice_vsi *vsi, u8 *seed, u8 *lut, u16 lut_size);
575 int ice_get_rss(struct ice_vsi *vsi, u8 *seed, u8 *lut, u16 lut_size);
576 void ice_fill_rss_lut(u8 *lut, u16 rss_table_size, u16 rss_size);
577 int ice_schedule_reset(struct ice_pf *pf, enum ice_reset_req reset);
578 void ice_print_link_msg(struct ice_vsi *vsi, bool isup);
579 const char *ice_stat_str(enum ice_status stat_err);
580 const char *ice_aq_str(enum ice_aq_err aq_err);
581 bool ice_is_wol_supported(struct ice_pf *pf);
582 int
583 ice_fdir_write_fltr(struct ice_pf *pf, struct ice_fdir_fltr *input, bool add,
584 		    bool is_tun);
585 void ice_vsi_manage_fdir(struct ice_vsi *vsi, bool ena);
586 int ice_add_fdir_ethtool(struct ice_vsi *vsi, struct ethtool_rxnfc *cmd);
587 int ice_del_fdir_ethtool(struct ice_vsi *vsi, struct ethtool_rxnfc *cmd);
588 int ice_get_ethtool_fdir_entry(struct ice_hw *hw, struct ethtool_rxnfc *cmd);
589 int
590 ice_get_fdir_fltr_ids(struct ice_hw *hw, struct ethtool_rxnfc *cmd,
591 		      u32 *rule_locs);
592 void ice_fdir_release_flows(struct ice_hw *hw);
593 void ice_fdir_replay_flows(struct ice_hw *hw);
594 void ice_fdir_replay_fltrs(struct ice_pf *pf);
595 int ice_fdir_create_dflt_rules(struct ice_pf *pf);
596 int ice_open(struct net_device *netdev);
597 int ice_stop(struct net_device *netdev);
598 void ice_service_task_schedule(struct ice_pf *pf);
599 
600 #endif /* _ICE_H_ */
601