1 /*
2  * Copyright (c) 2015-2016, Mellanox Technologies. All rights reserved.
3  *
4  * This software is available to you under a choice of one of two
5  * licenses.  You may choose to be licensed under the terms of the GNU
6  * General Public License (GPL) Version 2, available from the file
7  * COPYING in the main directory of this source tree, or the
8  * OpenIB.org BSD license below:
9  *
10  *     Redistribution and use in source and binary forms, with or
11  *     without modification, are permitted provided that the following
12  *     conditions are met:
13  *
14  *      - Redistributions of source code must retain the above
15  *        copyright notice, this list of conditions and the following
16  *        disclaimer.
17  *
18  *      - Redistributions in binary form must reproduce the above
19  *        copyright notice, this list of conditions and the following
20  *        disclaimer in the documentation and/or other materials
21  *        provided with the distribution.
22  *
23  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
24  * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
25  * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
26  * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
27  * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
28  * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
29  * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
30  * SOFTWARE.
31  */
32 #ifndef __MLX5_EN_H__
33 #define __MLX5_EN_H__
34 
35 #include <linux/if_vlan.h>
36 #include <linux/etherdevice.h>
37 #include <linux/timecounter.h>
38 #include <linux/net_tstamp.h>
39 #include <linux/ptp_clock_kernel.h>
40 #include <linux/crash_dump.h>
41 #include <linux/mlx5/driver.h>
42 #include <linux/mlx5/qp.h>
43 #include <linux/mlx5/cq.h>
44 #include <linux/mlx5/port.h>
45 #include <linux/mlx5/vport.h>
46 #include <linux/mlx5/transobj.h>
47 #include <linux/mlx5/fs.h>
48 #include <linux/rhashtable.h>
49 #include <net/switchdev.h>
50 #include <net/xdp.h>
51 #include <linux/net_dim.h>
52 #include "wq.h"
53 #include "mlx5_core.h"
54 #include "en_stats.h"
55 
56 #define MLX5_SET_CFG(p, f, v) MLX5_SET(create_flow_group_in, p, f, v)
57 
58 #define MLX5E_ETH_HARD_MTU (ETH_HLEN + VLAN_HLEN + ETH_FCS_LEN)
59 
60 #define MLX5E_HW2SW_MTU(priv, hwmtu) ((hwmtu) - ((priv)->hard_mtu))
61 #define MLX5E_SW2HW_MTU(priv, swmtu) ((swmtu) + ((priv)->hard_mtu))
62 
63 #define MLX5E_MAX_DSCP          64
64 #define MLX5E_MAX_NUM_TC	8
65 
66 #define MLX5E_PARAMS_MINIMUM_LOG_SQ_SIZE                0x6
67 #define MLX5E_PARAMS_DEFAULT_LOG_SQ_SIZE                0xa
68 #define MLX5E_PARAMS_MAXIMUM_LOG_SQ_SIZE                0xd
69 
70 #define MLX5E_PARAMS_MINIMUM_LOG_RQ_SIZE                0x1
71 #define MLX5E_PARAMS_DEFAULT_LOG_RQ_SIZE                0xa
72 #define MLX5E_PARAMS_MAXIMUM_LOG_RQ_SIZE                0xd
73 
74 #define MLX5E_PARAMS_MINIMUM_LOG_RQ_SIZE_MPW            0x2
75 #define MLX5E_PARAMS_DEFAULT_LOG_RQ_SIZE_MPW            0x3
76 #define MLX5E_PARAMS_MAXIMUM_LOG_RQ_SIZE_MPW            0x6
77 
78 #define MLX5_RX_HEADROOM NET_SKB_PAD
79 #define MLX5_SKB_FRAG_SZ(len)	(SKB_DATA_ALIGN(len) +	\
80 				 SKB_DATA_ALIGN(sizeof(struct skb_shared_info)))
81 
82 #define MLX5_MPWRQ_MIN_LOG_STRIDE_SZ(mdev) \
83 	(6 + MLX5_CAP_GEN(mdev, cache_line_128byte)) /* HW restriction */
84 #define MLX5_MPWRQ_LOG_STRIDE_SZ(mdev, req) \
85 	max_t(u32, MLX5_MPWRQ_MIN_LOG_STRIDE_SZ(mdev), req)
86 #define MLX5_MPWRQ_DEF_LOG_STRIDE_SZ(mdev)       MLX5_MPWRQ_LOG_STRIDE_SZ(mdev, 6)
87 #define MLX5_MPWRQ_CQE_CMPRS_LOG_STRIDE_SZ(mdev) MLX5_MPWRQ_LOG_STRIDE_SZ(mdev, 8)
88 #define MLX5E_MPWQE_STRIDE_SZ(mdev, cqe_cmprs) \
89 	(cqe_cmprs ? MLX5_MPWRQ_CQE_CMPRS_LOG_STRIDE_SZ(mdev) : \
90 	MLX5_MPWRQ_DEF_LOG_STRIDE_SZ(mdev))
91 
92 #define MLX5_MPWRQ_LOG_WQE_SZ			18
93 #define MLX5_MPWRQ_WQE_PAGE_ORDER  (MLX5_MPWRQ_LOG_WQE_SZ - PAGE_SHIFT > 0 ? \
94 				    MLX5_MPWRQ_LOG_WQE_SZ - PAGE_SHIFT : 0)
95 #define MLX5_MPWRQ_PAGES_PER_WQE		BIT(MLX5_MPWRQ_WQE_PAGE_ORDER)
96 #define MLX5_MPWRQ_STRIDES_PER_PAGE		(MLX5_MPWRQ_NUM_STRIDES >> \
97 						 MLX5_MPWRQ_WQE_PAGE_ORDER)
98 
99 #define MLX5_MTT_OCTW(npages) (ALIGN(npages, 8) / 2)
100 #define MLX5E_REQUIRED_MTTS(wqes)		\
101 	(wqes * ALIGN(MLX5_MPWRQ_PAGES_PER_WQE, 8))
102 #define MLX5E_VALID_NUM_MTTS(num_mtts) (MLX5_MTT_OCTW(num_mtts) - 1 <= U16_MAX)
103 
104 #define MLX5_UMR_ALIGN				(2048)
105 #define MLX5_MPWRQ_SMALL_PACKET_THRESHOLD	(256)
106 
107 #define MLX5E_PARAMS_DEFAULT_LRO_WQE_SZ                 (64 * 1024)
108 #define MLX5E_DEFAULT_LRO_TIMEOUT                       32
109 #define MLX5E_LRO_TIMEOUT_ARR_SIZE                      4
110 
111 #define MLX5E_PARAMS_DEFAULT_RX_CQ_MODERATION_USEC      0x10
112 #define MLX5E_PARAMS_DEFAULT_RX_CQ_MODERATION_USEC_FROM_CQE 0x3
113 #define MLX5E_PARAMS_DEFAULT_RX_CQ_MODERATION_PKTS      0x20
114 #define MLX5E_PARAMS_DEFAULT_TX_CQ_MODERATION_USEC      0x10
115 #define MLX5E_PARAMS_DEFAULT_TX_CQ_MODERATION_USEC_FROM_CQE 0x10
116 #define MLX5E_PARAMS_DEFAULT_TX_CQ_MODERATION_PKTS      0x20
117 #define MLX5E_PARAMS_DEFAULT_MIN_RX_WQES                0x80
118 #define MLX5E_PARAMS_DEFAULT_MIN_RX_WQES_MPW            0x2
119 
120 #define MLX5E_LOG_INDIR_RQT_SIZE       0x7
121 #define MLX5E_INDIR_RQT_SIZE           BIT(MLX5E_LOG_INDIR_RQT_SIZE)
122 #define MLX5E_MIN_NUM_CHANNELS         0x1
123 #define MLX5E_MAX_NUM_CHANNELS         (MLX5E_INDIR_RQT_SIZE >> 1)
124 #define MLX5E_MAX_NUM_SQS              (MLX5E_MAX_NUM_CHANNELS * MLX5E_MAX_NUM_TC)
125 #define MLX5E_TX_CQ_POLL_BUDGET        128
126 #define MLX5E_UPDATE_STATS_INTERVAL    200 /* msecs */
127 
128 #define MLX5E_ICOSQ_MAX_WQEBBS \
129 	(DIV_ROUND_UP(sizeof(struct mlx5e_umr_wqe), MLX5_SEND_WQE_BB))
130 
131 #define MLX5E_XDP_MIN_INLINE (ETH_HLEN + VLAN_HLEN)
132 #define MLX5E_XDP_TX_DS_COUNT \
133 	((sizeof(struct mlx5e_tx_wqe) / MLX5_SEND_WQE_DS) + 1 /* SG DS */)
134 
135 #define MLX5E_NUM_MAIN_GROUPS 9
136 
137 #define MLX5E_MSG_LEVEL			NETIF_MSG_LINK
138 
139 #define mlx5e_dbg(mlevel, priv, format, ...)                    \
140 do {                                                            \
141 	if (NETIF_MSG_##mlevel & (priv)->msglevel)              \
142 		netdev_warn(priv->netdev, format,               \
143 			    ##__VA_ARGS__);                     \
144 } while (0)
145 
146 
147 static inline u16 mlx5_min_rx_wqes(int wq_type, u32 wq_size)
148 {
149 	switch (wq_type) {
150 	case MLX5_WQ_TYPE_LINKED_LIST_STRIDING_RQ:
151 		return min_t(u16, MLX5E_PARAMS_DEFAULT_MIN_RX_WQES_MPW,
152 			     wq_size / 2);
153 	default:
154 		return min_t(u16, MLX5E_PARAMS_DEFAULT_MIN_RX_WQES,
155 			     wq_size / 2);
156 	}
157 }
158 
159 static inline int mlx5_min_log_rq_size(int wq_type)
160 {
161 	switch (wq_type) {
162 	case MLX5_WQ_TYPE_LINKED_LIST_STRIDING_RQ:
163 		return MLX5E_PARAMS_MINIMUM_LOG_RQ_SIZE_MPW;
164 	default:
165 		return MLX5E_PARAMS_MINIMUM_LOG_RQ_SIZE;
166 	}
167 }
168 
169 static inline int mlx5_max_log_rq_size(int wq_type)
170 {
171 	switch (wq_type) {
172 	case MLX5_WQ_TYPE_LINKED_LIST_STRIDING_RQ:
173 		return MLX5E_PARAMS_MAXIMUM_LOG_RQ_SIZE_MPW;
174 	default:
175 		return MLX5E_PARAMS_MAXIMUM_LOG_RQ_SIZE;
176 	}
177 }
178 
179 static inline int mlx5e_get_max_num_channels(struct mlx5_core_dev *mdev)
180 {
181 	return is_kdump_kernel() ?
182 		MLX5E_MIN_NUM_CHANNELS :
183 		min_t(int, mdev->priv.eq_table.num_comp_vectors,
184 		      MLX5E_MAX_NUM_CHANNELS);
185 }
186 
187 struct mlx5e_tx_wqe {
188 	struct mlx5_wqe_ctrl_seg ctrl;
189 	struct mlx5_wqe_eth_seg  eth;
190 };
191 
192 struct mlx5e_rx_wqe {
193 	struct mlx5_wqe_srq_next_seg  next;
194 	struct mlx5_wqe_data_seg      data;
195 };
196 
197 struct mlx5e_umr_wqe {
198 	struct mlx5_wqe_ctrl_seg       ctrl;
199 	struct mlx5_wqe_umr_ctrl_seg   uctrl;
200 	struct mlx5_mkey_seg           mkc;
201 	struct mlx5_wqe_data_seg       data;
202 };
203 
204 extern const char mlx5e_self_tests[][ETH_GSTRING_LEN];
205 
206 static const char mlx5e_priv_flags[][ETH_GSTRING_LEN] = {
207 	"rx_cqe_moder",
208 	"tx_cqe_moder",
209 	"rx_cqe_compress",
210 };
211 
212 enum mlx5e_priv_flag {
213 	MLX5E_PFLAG_RX_CQE_BASED_MODER = (1 << 0),
214 	MLX5E_PFLAG_TX_CQE_BASED_MODER = (1 << 1),
215 	MLX5E_PFLAG_RX_CQE_COMPRESS = (1 << 2),
216 };
217 
218 #define MLX5E_SET_PFLAG(params, pflag, enable)			\
219 	do {							\
220 		if (enable)					\
221 			(params)->pflags |= (pflag);		\
222 		else						\
223 			(params)->pflags &= ~(pflag);		\
224 	} while (0)
225 
226 #define MLX5E_GET_PFLAG(params, pflag) (!!((params)->pflags & (pflag)))
227 
228 #ifdef CONFIG_MLX5_CORE_EN_DCB
229 #define MLX5E_MAX_BW_ALLOC 100 /* Max percentage of BW allocation */
230 #endif
231 
232 struct mlx5e_params {
233 	u8  log_sq_size;
234 	u8  rq_wq_type;
235 	u16 rq_headroom;
236 	u8  mpwqe_log_stride_sz;
237 	u8  mpwqe_log_num_strides;
238 	u8  log_rq_size;
239 	u16 num_channels;
240 	u8  num_tc;
241 	bool rx_cqe_compress_def;
242 	struct net_dim_cq_moder rx_cq_moderation;
243 	struct net_dim_cq_moder tx_cq_moderation;
244 	bool lro_en;
245 	u32 lro_wqe_sz;
246 	u16 tx_max_inline;
247 	u8  tx_min_inline_mode;
248 	u8  rss_hfunc;
249 	u8  toeplitz_hash_key[40];
250 	u32 indirection_rqt[MLX5E_INDIR_RQT_SIZE];
251 	bool vlan_strip_disable;
252 	bool scatter_fcs_en;
253 	bool rx_dim_enabled;
254 	u32 lro_timeout;
255 	u32 pflags;
256 	struct bpf_prog *xdp_prog;
257 };
258 
259 #ifdef CONFIG_MLX5_CORE_EN_DCB
260 struct mlx5e_cee_config {
261 	/* bw pct for priority group */
262 	u8                         pg_bw_pct[CEE_DCBX_MAX_PGS];
263 	u8                         prio_to_pg_map[CEE_DCBX_MAX_PRIO];
264 	bool                       pfc_setting[CEE_DCBX_MAX_PRIO];
265 	bool                       pfc_enable;
266 };
267 
268 enum {
269 	MLX5_DCB_CHG_RESET,
270 	MLX5_DCB_NO_CHG,
271 	MLX5_DCB_CHG_NO_RESET,
272 };
273 
274 struct mlx5e_dcbx {
275 	enum mlx5_dcbx_oper_mode   mode;
276 	struct mlx5e_cee_config    cee_cfg; /* pending configuration */
277 	u8                         dscp_app_cnt;
278 
279 	/* The only setting that cannot be read from FW */
280 	u8                         tc_tsa[IEEE_8021QAZ_MAX_TCS];
281 	u8                         cap;
282 };
283 
284 struct mlx5e_dcbx_dp {
285 	u8                         dscp2prio[MLX5E_MAX_DSCP];
286 	u8                         trust_state;
287 };
288 #endif
289 
290 enum {
291 	MLX5E_RQ_STATE_ENABLED,
292 	MLX5E_RQ_STATE_AM,
293 };
294 
295 #define MLX5E_TEST_BIT(state, nr) (state & BIT(nr))
296 
297 struct mlx5e_cq {
298 	/* data path - accessed per cqe */
299 	struct mlx5_cqwq           wq;
300 
301 	/* data path - accessed per napi poll */
302 	u16                        event_ctr;
303 	struct napi_struct        *napi;
304 	struct mlx5_core_cq        mcq;
305 	struct mlx5e_channel      *channel;
306 
307 	/* cqe decompression */
308 	struct mlx5_cqe64          title;
309 	struct mlx5_mini_cqe8      mini_arr[MLX5_MINI_CQE_ARRAY_SIZE];
310 	u8                         mini_arr_idx;
311 	u16                        decmprs_left;
312 	u16                        decmprs_wqe_counter;
313 
314 	/* control */
315 	struct mlx5_core_dev      *mdev;
316 	struct mlx5_frag_wq_ctrl   wq_ctrl;
317 } ____cacheline_aligned_in_smp;
318 
319 struct mlx5e_tx_wqe_info {
320 	struct sk_buff *skb;
321 	u32 num_bytes;
322 	u8  num_wqebbs;
323 	u8  num_dma;
324 };
325 
326 enum mlx5e_dma_map_type {
327 	MLX5E_DMA_MAP_SINGLE,
328 	MLX5E_DMA_MAP_PAGE
329 };
330 
331 struct mlx5e_sq_dma {
332 	dma_addr_t              addr;
333 	u32                     size;
334 	enum mlx5e_dma_map_type type;
335 };
336 
337 enum {
338 	MLX5E_SQ_STATE_ENABLED,
339 	MLX5E_SQ_STATE_IPSEC,
340 };
341 
342 struct mlx5e_sq_wqe_info {
343 	u8  opcode;
344 };
345 
346 struct mlx5e_txqsq {
347 	/* data path */
348 
349 	/* dirtied @completion */
350 	u16                        cc;
351 	u32                        dma_fifo_cc;
352 
353 	/* dirtied @xmit */
354 	u16                        pc ____cacheline_aligned_in_smp;
355 	u32                        dma_fifo_pc;
356 	struct mlx5e_sq_stats      stats;
357 
358 	struct mlx5e_cq            cq;
359 
360 	/* write@xmit, read@completion */
361 	struct {
362 		struct mlx5e_sq_dma       *dma_fifo;
363 		struct mlx5e_tx_wqe_info  *wqe_info;
364 	} db;
365 
366 	/* read only */
367 	struct mlx5_wq_cyc         wq;
368 	u32                        dma_fifo_mask;
369 	void __iomem              *uar_map;
370 	struct netdev_queue       *txq;
371 	u32                        sqn;
372 	u16                        max_inline;
373 	u8                         min_inline_mode;
374 	u16                        edge;
375 	struct device             *pdev;
376 	__be32                     mkey_be;
377 	unsigned long              state;
378 	struct hwtstamp_config    *tstamp;
379 	struct mlx5_clock         *clock;
380 
381 	/* control path */
382 	struct mlx5_wq_ctrl        wq_ctrl;
383 	struct mlx5e_channel      *channel;
384 	int                        txq_ix;
385 	u32                        rate_limit;
386 } ____cacheline_aligned_in_smp;
387 
388 struct mlx5e_xdpsq {
389 	/* data path */
390 
391 	/* dirtied @rx completion */
392 	u16                        cc;
393 	u16                        pc;
394 
395 	struct mlx5e_cq            cq;
396 
397 	/* write@xmit, read@completion */
398 	struct {
399 		struct mlx5e_dma_info     *di;
400 		bool                       doorbell;
401 	} db;
402 
403 	/* read only */
404 	struct mlx5_wq_cyc         wq;
405 	void __iomem              *uar_map;
406 	u32                        sqn;
407 	struct device             *pdev;
408 	__be32                     mkey_be;
409 	u8                         min_inline_mode;
410 	unsigned long              state;
411 
412 	/* control path */
413 	struct mlx5_wq_ctrl        wq_ctrl;
414 	struct mlx5e_channel      *channel;
415 } ____cacheline_aligned_in_smp;
416 
417 struct mlx5e_icosq {
418 	/* data path */
419 
420 	/* dirtied @xmit */
421 	u16                        pc ____cacheline_aligned_in_smp;
422 
423 	struct mlx5e_cq            cq;
424 
425 	/* write@xmit, read@completion */
426 	struct {
427 		struct mlx5e_sq_wqe_info *ico_wqe;
428 	} db;
429 
430 	/* read only */
431 	struct mlx5_wq_cyc         wq;
432 	void __iomem              *uar_map;
433 	u32                        sqn;
434 	u16                        edge;
435 	__be32                     mkey_be;
436 	unsigned long              state;
437 
438 	/* control path */
439 	struct mlx5_wq_ctrl        wq_ctrl;
440 	struct mlx5e_channel      *channel;
441 } ____cacheline_aligned_in_smp;
442 
443 static inline bool
444 mlx5e_wqc_has_room_for(struct mlx5_wq_cyc *wq, u16 cc, u16 pc, u16 n)
445 {
446 	return (((wq->sz_m1 & (cc - pc)) >= n) || (cc == pc));
447 }
448 
449 struct mlx5e_dma_info {
450 	struct page	*page;
451 	dma_addr_t	addr;
452 };
453 
454 struct mlx5e_wqe_frag_info {
455 	struct mlx5e_dma_info di;
456 	u32 offset;
457 };
458 
459 struct mlx5e_umr_dma_info {
460 	__be64                *mtt;
461 	dma_addr_t             mtt_addr;
462 	struct mlx5e_dma_info  dma_info[MLX5_MPWRQ_PAGES_PER_WQE];
463 	struct mlx5e_umr_wqe   wqe;
464 };
465 
466 struct mlx5e_mpw_info {
467 	struct mlx5e_umr_dma_info umr;
468 	u16 consumed_strides;
469 	u16 skbs_frags[MLX5_MPWRQ_PAGES_PER_WQE];
470 };
471 
472 /* a single cache unit is capable to serve one napi call (for non-striding rq)
473  * or a MPWQE (for striding rq).
474  */
475 #define MLX5E_CACHE_UNIT	(MLX5_MPWRQ_PAGES_PER_WQE > NAPI_POLL_WEIGHT ? \
476 				 MLX5_MPWRQ_PAGES_PER_WQE : NAPI_POLL_WEIGHT)
477 #define MLX5E_CACHE_SIZE	(4 * roundup_pow_of_two(MLX5E_CACHE_UNIT))
478 struct mlx5e_page_cache {
479 	u32 head;
480 	u32 tail;
481 	struct mlx5e_dma_info page_cache[MLX5E_CACHE_SIZE];
482 };
483 
484 struct mlx5e_rq;
485 typedef void (*mlx5e_fp_handle_rx_cqe)(struct mlx5e_rq*, struct mlx5_cqe64*);
486 typedef bool (*mlx5e_fp_post_rx_wqes)(struct mlx5e_rq *rq);
487 typedef void (*mlx5e_fp_dealloc_wqe)(struct mlx5e_rq*, u16);
488 
489 struct mlx5e_rq {
490 	/* data path */
491 	struct mlx5_wq_ll      wq;
492 
493 	union {
494 		struct {
495 			struct mlx5e_wqe_frag_info *frag_info;
496 			u32 frag_sz;	/* max possible skb frag_sz */
497 			union {
498 				bool page_reuse;
499 				bool xdp_xmit;
500 			};
501 		} wqe;
502 		struct {
503 			struct mlx5e_mpw_info *info;
504 			void                  *mtt_no_align;
505 			u16                    num_strides;
506 			u8                     log_stride_sz;
507 			bool                   umr_in_progress;
508 		} mpwqe;
509 	};
510 	struct {
511 		u16            headroom;
512 		u8             page_order;
513 		u8             map_dir;   /* dma map direction */
514 	} buff;
515 
516 	struct mlx5e_channel  *channel;
517 	struct device         *pdev;
518 	struct net_device     *netdev;
519 	struct mlx5e_rq_stats  stats;
520 	struct mlx5e_cq        cq;
521 	struct mlx5e_page_cache page_cache;
522 	struct hwtstamp_config *tstamp;
523 	struct mlx5_clock      *clock;
524 
525 	mlx5e_fp_handle_rx_cqe handle_rx_cqe;
526 	mlx5e_fp_post_rx_wqes  post_wqes;
527 	mlx5e_fp_dealloc_wqe   dealloc_wqe;
528 
529 	unsigned long          state;
530 	int                    ix;
531 
532 	struct net_dim         dim; /* Dynamic Interrupt Moderation */
533 
534 	/* XDP */
535 	struct bpf_prog       *xdp_prog;
536 	struct mlx5e_xdpsq     xdpsq;
537 
538 	/* control */
539 	struct mlx5_wq_ctrl    wq_ctrl;
540 	__be32                 mkey_be;
541 	u8                     wq_type;
542 	u32                    rqn;
543 	struct mlx5_core_dev  *mdev;
544 	struct mlx5_core_mkey  umr_mkey;
545 
546 	/* XDP read-mostly */
547 	struct xdp_rxq_info    xdp_rxq;
548 } ____cacheline_aligned_in_smp;
549 
550 struct mlx5e_channel {
551 	/* data path */
552 	struct mlx5e_rq            rq;
553 	struct mlx5e_txqsq         sq[MLX5E_MAX_NUM_TC];
554 	struct mlx5e_icosq         icosq;   /* internal control operations */
555 	bool                       xdp;
556 	struct napi_struct         napi;
557 	struct device             *pdev;
558 	struct net_device         *netdev;
559 	__be32                     mkey_be;
560 	u8                         num_tc;
561 
562 	/* data path - accessed per napi poll */
563 	struct irq_desc *irq_desc;
564 	struct mlx5e_ch_stats      stats;
565 
566 	/* control */
567 	struct mlx5e_priv         *priv;
568 	struct mlx5_core_dev      *mdev;
569 	struct hwtstamp_config    *tstamp;
570 	int                        ix;
571 	int                        cpu;
572 };
573 
574 struct mlx5e_channels {
575 	struct mlx5e_channel **c;
576 	unsigned int           num;
577 	struct mlx5e_params    params;
578 };
579 
580 enum mlx5e_traffic_types {
581 	MLX5E_TT_IPV4_TCP,
582 	MLX5E_TT_IPV6_TCP,
583 	MLX5E_TT_IPV4_UDP,
584 	MLX5E_TT_IPV6_UDP,
585 	MLX5E_TT_IPV4_IPSEC_AH,
586 	MLX5E_TT_IPV6_IPSEC_AH,
587 	MLX5E_TT_IPV4_IPSEC_ESP,
588 	MLX5E_TT_IPV6_IPSEC_ESP,
589 	MLX5E_TT_IPV4,
590 	MLX5E_TT_IPV6,
591 	MLX5E_TT_ANY,
592 	MLX5E_NUM_TT,
593 	MLX5E_NUM_INDIR_TIRS = MLX5E_TT_ANY,
594 };
595 
596 enum mlx5e_tunnel_types {
597 	MLX5E_TT_IPV4_GRE,
598 	MLX5E_TT_IPV6_GRE,
599 	MLX5E_NUM_TUNNEL_TT,
600 };
601 
602 enum {
603 	MLX5E_STATE_ASYNC_EVENTS_ENABLED,
604 	MLX5E_STATE_OPENED,
605 	MLX5E_STATE_DESTROYING,
606 };
607 
608 struct mlx5e_vxlan_db {
609 	spinlock_t			lock; /* protect vxlan table */
610 	struct radix_tree_root		tree;
611 };
612 
613 struct mlx5e_l2_rule {
614 	u8  addr[ETH_ALEN + 2];
615 	struct mlx5_flow_handle *rule;
616 };
617 
618 struct mlx5e_flow_table {
619 	int num_groups;
620 	struct mlx5_flow_table *t;
621 	struct mlx5_flow_group **g;
622 };
623 
624 #define MLX5E_L2_ADDR_HASH_SIZE BIT(BITS_PER_BYTE)
625 
626 struct mlx5e_tc_table {
627 	struct mlx5_flow_table		*t;
628 
629 	struct rhashtable_params        ht_params;
630 	struct rhashtable               ht;
631 
632 	DECLARE_HASHTABLE(mod_hdr_tbl, 8);
633 	DECLARE_HASHTABLE(hairpin_tbl, 8);
634 };
635 
636 struct mlx5e_vlan_table {
637 	struct mlx5e_flow_table		ft;
638 	DECLARE_BITMAP(active_cvlans, VLAN_N_VID);
639 	DECLARE_BITMAP(active_svlans, VLAN_N_VID);
640 	struct mlx5_flow_handle	*active_cvlans_rule[VLAN_N_VID];
641 	struct mlx5_flow_handle	*active_svlans_rule[VLAN_N_VID];
642 	struct mlx5_flow_handle	*untagged_rule;
643 	struct mlx5_flow_handle	*any_cvlan_rule;
644 	struct mlx5_flow_handle	*any_svlan_rule;
645 	bool			cvlan_filter_disabled;
646 };
647 
648 struct mlx5e_l2_table {
649 	struct mlx5e_flow_table    ft;
650 	struct hlist_head          netdev_uc[MLX5E_L2_ADDR_HASH_SIZE];
651 	struct hlist_head          netdev_mc[MLX5E_L2_ADDR_HASH_SIZE];
652 	struct mlx5e_l2_rule	   broadcast;
653 	struct mlx5e_l2_rule	   allmulti;
654 	struct mlx5e_l2_rule	   promisc;
655 	bool                       broadcast_enabled;
656 	bool                       allmulti_enabled;
657 	bool                       promisc_enabled;
658 };
659 
660 /* L3/L4 traffic type classifier */
661 struct mlx5e_ttc_table {
662 	struct mlx5e_flow_table  ft;
663 	struct mlx5_flow_handle	 *rules[MLX5E_NUM_TT];
664 	struct mlx5_flow_handle  *tunnel_rules[MLX5E_NUM_TUNNEL_TT];
665 };
666 
667 #define ARFS_HASH_SHIFT BITS_PER_BYTE
668 #define ARFS_HASH_SIZE BIT(BITS_PER_BYTE)
669 struct arfs_table {
670 	struct mlx5e_flow_table  ft;
671 	struct mlx5_flow_handle	 *default_rule;
672 	struct hlist_head	 rules_hash[ARFS_HASH_SIZE];
673 };
674 
675 enum  arfs_type {
676 	ARFS_IPV4_TCP,
677 	ARFS_IPV6_TCP,
678 	ARFS_IPV4_UDP,
679 	ARFS_IPV6_UDP,
680 	ARFS_NUM_TYPES,
681 };
682 
683 struct mlx5e_arfs_tables {
684 	struct arfs_table arfs_tables[ARFS_NUM_TYPES];
685 	/* Protect aRFS rules list */
686 	spinlock_t                     arfs_lock;
687 	struct list_head               rules;
688 	int                            last_filter_id;
689 	struct workqueue_struct        *wq;
690 };
691 
692 /* NIC prio FTS */
693 enum {
694 	MLX5E_VLAN_FT_LEVEL = 0,
695 	MLX5E_L2_FT_LEVEL,
696 	MLX5E_TTC_FT_LEVEL,
697 	MLX5E_INNER_TTC_FT_LEVEL,
698 	MLX5E_ARFS_FT_LEVEL
699 };
700 
701 enum {
702 	MLX5E_TC_FT_LEVEL = 0,
703 	MLX5E_TC_TTC_FT_LEVEL,
704 };
705 
706 struct mlx5e_ethtool_table {
707 	struct mlx5_flow_table *ft;
708 	int                    num_rules;
709 };
710 
711 #define ETHTOOL_NUM_L3_L4_FTS 7
712 #define ETHTOOL_NUM_L2_FTS 4
713 
714 struct mlx5e_ethtool_steering {
715 	struct mlx5e_ethtool_table      l3_l4_ft[ETHTOOL_NUM_L3_L4_FTS];
716 	struct mlx5e_ethtool_table      l2_ft[ETHTOOL_NUM_L2_FTS];
717 	struct list_head                rules;
718 	int                             tot_num_rules;
719 };
720 
721 struct mlx5e_flow_steering {
722 	struct mlx5_flow_namespace      *ns;
723 	struct mlx5e_ethtool_steering   ethtool;
724 	struct mlx5e_tc_table           tc;
725 	struct mlx5e_vlan_table         vlan;
726 	struct mlx5e_l2_table           l2;
727 	struct mlx5e_ttc_table          ttc;
728 	struct mlx5e_ttc_table          inner_ttc;
729 	struct mlx5e_arfs_tables        arfs;
730 };
731 
732 struct mlx5e_rqt {
733 	u32              rqtn;
734 	bool		 enabled;
735 };
736 
737 struct mlx5e_tir {
738 	u32		  tirn;
739 	struct mlx5e_rqt  rqt;
740 	struct list_head  list;
741 };
742 
743 enum {
744 	MLX5E_TC_PRIO = 0,
745 	MLX5E_NIC_PRIO
746 };
747 
748 struct mlx5e_priv {
749 	/* priv data path fields - start */
750 	struct mlx5e_txqsq *txq2sq[MLX5E_MAX_NUM_CHANNELS * MLX5E_MAX_NUM_TC];
751 	int channel_tc2txq[MLX5E_MAX_NUM_CHANNELS][MLX5E_MAX_NUM_TC];
752 #ifdef CONFIG_MLX5_CORE_EN_DCB
753 	struct mlx5e_dcbx_dp       dcbx_dp;
754 #endif
755 	/* priv data path fields - end */
756 
757 	u32                        msglevel;
758 	unsigned long              state;
759 	struct mutex               state_lock; /* Protects Interface state */
760 	struct mlx5e_rq            drop_rq;
761 
762 	struct mlx5e_channels      channels;
763 	u32                        tisn[MLX5E_MAX_NUM_TC];
764 	struct mlx5e_rqt           indir_rqt;
765 	struct mlx5e_tir           indir_tir[MLX5E_NUM_INDIR_TIRS];
766 	struct mlx5e_tir           inner_indir_tir[MLX5E_NUM_INDIR_TIRS];
767 	struct mlx5e_tir           direct_tir[MLX5E_MAX_NUM_CHANNELS];
768 	u32                        tx_rates[MLX5E_MAX_NUM_SQS];
769 	int                        hard_mtu;
770 
771 	struct mlx5e_flow_steering fs;
772 	struct mlx5e_vxlan_db      vxlan;
773 
774 	struct workqueue_struct    *wq;
775 	struct work_struct         update_carrier_work;
776 	struct work_struct         set_rx_mode_work;
777 	struct work_struct         tx_timeout_work;
778 	struct delayed_work        update_stats_work;
779 
780 	struct mlx5_core_dev      *mdev;
781 	struct net_device         *netdev;
782 	struct mlx5e_stats         stats;
783 	struct hwtstamp_config     tstamp;
784 	u16 q_counter;
785 #ifdef CONFIG_MLX5_CORE_EN_DCB
786 	struct mlx5e_dcbx          dcbx;
787 #endif
788 
789 	const struct mlx5e_profile *profile;
790 	void                      *ppriv;
791 #ifdef CONFIG_MLX5_EN_IPSEC
792 	struct mlx5e_ipsec        *ipsec;
793 #endif
794 };
795 
796 struct mlx5e_profile {
797 	void	(*init)(struct mlx5_core_dev *mdev,
798 			struct net_device *netdev,
799 			const struct mlx5e_profile *profile, void *ppriv);
800 	void	(*cleanup)(struct mlx5e_priv *priv);
801 	int	(*init_rx)(struct mlx5e_priv *priv);
802 	void	(*cleanup_rx)(struct mlx5e_priv *priv);
803 	int	(*init_tx)(struct mlx5e_priv *priv);
804 	void	(*cleanup_tx)(struct mlx5e_priv *priv);
805 	void	(*enable)(struct mlx5e_priv *priv);
806 	void	(*disable)(struct mlx5e_priv *priv);
807 	void	(*update_stats)(struct mlx5e_priv *priv);
808 	void	(*update_carrier)(struct mlx5e_priv *priv);
809 	int	(*max_nch)(struct mlx5_core_dev *mdev);
810 	struct {
811 		mlx5e_fp_handle_rx_cqe handle_rx_cqe;
812 		mlx5e_fp_handle_rx_cqe handle_rx_cqe_mpwqe;
813 	} rx_handlers;
814 	void	(*netdev_registered_init)(struct mlx5e_priv *priv);
815 	void    (*netdev_registered_remove)(struct mlx5e_priv *priv);
816 	int	max_tc;
817 };
818 
819 void mlx5e_build_ptys2ethtool_map(void);
820 
821 u16 mlx5e_select_queue(struct net_device *dev, struct sk_buff *skb,
822 		       void *accel_priv, select_queue_fallback_t fallback);
823 netdev_tx_t mlx5e_xmit(struct sk_buff *skb, struct net_device *dev);
824 
825 void mlx5e_completion_event(struct mlx5_core_cq *mcq);
826 void mlx5e_cq_error_event(struct mlx5_core_cq *mcq, enum mlx5_event event);
827 int mlx5e_napi_poll(struct napi_struct *napi, int budget);
828 bool mlx5e_poll_tx_cq(struct mlx5e_cq *cq, int napi_budget);
829 int mlx5e_poll_rx_cq(struct mlx5e_cq *cq, int budget);
830 bool mlx5e_poll_xdpsq_cq(struct mlx5e_cq *cq);
831 void mlx5e_free_txqsq_descs(struct mlx5e_txqsq *sq);
832 void mlx5e_free_xdpsq_descs(struct mlx5e_xdpsq *sq);
833 
834 void mlx5e_page_release(struct mlx5e_rq *rq, struct mlx5e_dma_info *dma_info,
835 			bool recycle);
836 void mlx5e_handle_rx_cqe(struct mlx5e_rq *rq, struct mlx5_cqe64 *cqe);
837 void mlx5e_handle_rx_cqe_mpwrq(struct mlx5e_rq *rq, struct mlx5_cqe64 *cqe);
838 bool mlx5e_post_rx_wqes(struct mlx5e_rq *rq);
839 bool mlx5e_post_rx_mpwqes(struct mlx5e_rq *rq);
840 void mlx5e_dealloc_rx_wqe(struct mlx5e_rq *rq, u16 ix);
841 void mlx5e_dealloc_rx_mpwqe(struct mlx5e_rq *rq, u16 ix);
842 void mlx5e_free_rx_mpwqe(struct mlx5e_rq *rq, struct mlx5e_mpw_info *wi);
843 
844 void mlx5e_update_stats(struct mlx5e_priv *priv);
845 
846 int mlx5e_create_flow_steering(struct mlx5e_priv *priv);
847 void mlx5e_destroy_flow_steering(struct mlx5e_priv *priv);
848 void mlx5e_init_l2_addr(struct mlx5e_priv *priv);
849 void mlx5e_destroy_flow_table(struct mlx5e_flow_table *ft);
850 int mlx5e_self_test_num(struct mlx5e_priv *priv);
851 void mlx5e_self_test(struct net_device *ndev, struct ethtool_test *etest,
852 		     u64 *buf);
853 int mlx5e_ethtool_get_flow(struct mlx5e_priv *priv, struct ethtool_rxnfc *info,
854 			   int location);
855 int mlx5e_ethtool_get_all_flows(struct mlx5e_priv *priv,
856 				struct ethtool_rxnfc *info, u32 *rule_locs);
857 int mlx5e_ethtool_flow_replace(struct mlx5e_priv *priv,
858 			       struct ethtool_rx_flow_spec *fs);
859 int mlx5e_ethtool_flow_remove(struct mlx5e_priv *priv,
860 			      int location);
861 void mlx5e_ethtool_init_steering(struct mlx5e_priv *priv);
862 void mlx5e_ethtool_cleanup_steering(struct mlx5e_priv *priv);
863 void mlx5e_set_rx_mode_work(struct work_struct *work);
864 
865 int mlx5e_hwstamp_set(struct mlx5e_priv *priv, struct ifreq *ifr);
866 int mlx5e_hwstamp_get(struct mlx5e_priv *priv, struct ifreq *ifr);
867 int mlx5e_modify_rx_cqe_compression_locked(struct mlx5e_priv *priv, bool val);
868 
869 int mlx5e_vlan_rx_add_vid(struct net_device *dev, __always_unused __be16 proto,
870 			  u16 vid);
871 int mlx5e_vlan_rx_kill_vid(struct net_device *dev, __always_unused __be16 proto,
872 			   u16 vid);
873 void mlx5e_enable_cvlan_filter(struct mlx5e_priv *priv);
874 void mlx5e_disable_cvlan_filter(struct mlx5e_priv *priv);
875 void mlx5e_timestamp_init(struct mlx5e_priv *priv);
876 
877 struct mlx5e_redirect_rqt_param {
878 	bool is_rss;
879 	union {
880 		u32 rqn; /* Direct RQN (Non-RSS) */
881 		struct {
882 			u8 hfunc;
883 			struct mlx5e_channels *channels;
884 		} rss; /* RSS data */
885 	};
886 };
887 
888 int mlx5e_redirect_rqt(struct mlx5e_priv *priv, u32 rqtn, int sz,
889 		       struct mlx5e_redirect_rqt_param rrp);
890 void mlx5e_build_indir_tir_ctx_hash(struct mlx5e_params *params,
891 				    enum mlx5e_traffic_types tt,
892 				    void *tirc, bool inner);
893 
894 int mlx5e_open_locked(struct net_device *netdev);
895 int mlx5e_close_locked(struct net_device *netdev);
896 
897 int mlx5e_open_channels(struct mlx5e_priv *priv,
898 			struct mlx5e_channels *chs);
899 void mlx5e_close_channels(struct mlx5e_channels *chs);
900 
901 /* Function pointer to be used to modify WH settings while
902  * switching channels
903  */
904 typedef int (*mlx5e_fp_hw_modify)(struct mlx5e_priv *priv);
905 void mlx5e_switch_priv_channels(struct mlx5e_priv *priv,
906 				struct mlx5e_channels *new_chs,
907 				mlx5e_fp_hw_modify hw_modify);
908 void mlx5e_activate_priv_channels(struct mlx5e_priv *priv);
909 void mlx5e_deactivate_priv_channels(struct mlx5e_priv *priv);
910 
911 void mlx5e_build_default_indir_rqt(u32 *indirection_rqt, int len,
912 				   int num_channels);
913 int mlx5e_get_max_linkspeed(struct mlx5_core_dev *mdev, u32 *speed);
914 
915 void mlx5e_set_tx_cq_mode_params(struct mlx5e_params *params,
916 				 u8 cq_period_mode);
917 void mlx5e_set_rx_cq_mode_params(struct mlx5e_params *params,
918 				 u8 cq_period_mode);
919 void mlx5e_init_rq_type_params(struct mlx5_core_dev *mdev,
920 			       struct mlx5e_params *params,
921 			       u8 rq_type);
922 
923 static inline bool mlx5e_tunnel_inner_ft_supported(struct mlx5_core_dev *mdev)
924 {
925 	return (MLX5_CAP_ETH(mdev, tunnel_stateless_gre) &&
926 		MLX5_CAP_FLOWTABLE_NIC_RX(mdev, ft_field_support.inner_ip_version));
927 }
928 
929 static inline
930 struct mlx5e_tx_wqe *mlx5e_post_nop(struct mlx5_wq_cyc *wq, u32 sqn, u16 *pc)
931 {
932 	u16                         pi   = *pc & wq->sz_m1;
933 	struct mlx5e_tx_wqe        *wqe  = mlx5_wq_cyc_get_wqe(wq, pi);
934 	struct mlx5_wqe_ctrl_seg   *cseg = &wqe->ctrl;
935 
936 	memset(cseg, 0, sizeof(*cseg));
937 
938 	cseg->opmod_idx_opcode = cpu_to_be32((*pc << 8) | MLX5_OPCODE_NOP);
939 	cseg->qpn_ds           = cpu_to_be32((sqn << 8) | 0x01);
940 
941 	(*pc)++;
942 
943 	return wqe;
944 }
945 
946 static inline
947 void mlx5e_notify_hw(struct mlx5_wq_cyc *wq, u16 pc,
948 		     void __iomem *uar_map,
949 		     struct mlx5_wqe_ctrl_seg *ctrl)
950 {
951 	ctrl->fm_ce_se = MLX5_WQE_CTRL_CQ_UPDATE;
952 	/* ensure wqe is visible to device before updating doorbell record */
953 	dma_wmb();
954 
955 	*wq->db = cpu_to_be32(pc);
956 
957 	/* ensure doorbell record is visible to device before ringing the
958 	 * doorbell
959 	 */
960 	wmb();
961 
962 	mlx5_write64((__be32 *)ctrl, uar_map, NULL);
963 }
964 
965 static inline void mlx5e_cq_arm(struct mlx5e_cq *cq)
966 {
967 	struct mlx5_core_cq *mcq;
968 
969 	mcq = &cq->mcq;
970 	mlx5_cq_arm(mcq, MLX5_CQ_DB_REQ_NOT, mcq->uar->map, cq->wq.cc);
971 }
972 
973 static inline u32 mlx5e_get_wqe_mtt_offset(struct mlx5e_rq *rq, u16 wqe_ix)
974 {
975 	return wqe_ix * ALIGN(MLX5_MPWRQ_PAGES_PER_WQE, 8);
976 }
977 
978 extern const struct ethtool_ops mlx5e_ethtool_ops;
979 #ifdef CONFIG_MLX5_CORE_EN_DCB
980 extern const struct dcbnl_rtnl_ops mlx5e_dcbnl_ops;
981 int mlx5e_dcbnl_ieee_setets_core(struct mlx5e_priv *priv, struct ieee_ets *ets);
982 void mlx5e_dcbnl_initialize(struct mlx5e_priv *priv);
983 void mlx5e_dcbnl_init_app(struct mlx5e_priv *priv);
984 void mlx5e_dcbnl_delete_app(struct mlx5e_priv *priv);
985 #endif
986 
987 #ifndef CONFIG_RFS_ACCEL
988 static inline int mlx5e_arfs_create_tables(struct mlx5e_priv *priv)
989 {
990 	return 0;
991 }
992 
993 static inline void mlx5e_arfs_destroy_tables(struct mlx5e_priv *priv) {}
994 
995 static inline int mlx5e_arfs_enable(struct mlx5e_priv *priv)
996 {
997 	return -EOPNOTSUPP;
998 }
999 
1000 static inline int mlx5e_arfs_disable(struct mlx5e_priv *priv)
1001 {
1002 	return -EOPNOTSUPP;
1003 }
1004 #else
1005 int mlx5e_arfs_create_tables(struct mlx5e_priv *priv);
1006 void mlx5e_arfs_destroy_tables(struct mlx5e_priv *priv);
1007 int mlx5e_arfs_enable(struct mlx5e_priv *priv);
1008 int mlx5e_arfs_disable(struct mlx5e_priv *priv);
1009 int mlx5e_rx_flow_steer(struct net_device *dev, const struct sk_buff *skb,
1010 			u16 rxq_index, u32 flow_id);
1011 #endif
1012 
1013 u16 mlx5e_get_max_inline_cap(struct mlx5_core_dev *mdev);
1014 int mlx5e_create_tir(struct mlx5_core_dev *mdev,
1015 		     struct mlx5e_tir *tir, u32 *in, int inlen);
1016 void mlx5e_destroy_tir(struct mlx5_core_dev *mdev,
1017 		       struct mlx5e_tir *tir);
1018 int mlx5e_create_mdev_resources(struct mlx5_core_dev *mdev);
1019 void mlx5e_destroy_mdev_resources(struct mlx5_core_dev *mdev);
1020 int mlx5e_refresh_tirs(struct mlx5e_priv *priv, bool enable_uc_lb);
1021 
1022 /* common netdev helpers */
1023 int mlx5e_create_indirect_rqt(struct mlx5e_priv *priv);
1024 
1025 int mlx5e_create_indirect_tirs(struct mlx5e_priv *priv);
1026 void mlx5e_destroy_indirect_tirs(struct mlx5e_priv *priv);
1027 
1028 int mlx5e_create_direct_rqts(struct mlx5e_priv *priv);
1029 void mlx5e_destroy_direct_rqts(struct mlx5e_priv *priv);
1030 int mlx5e_create_direct_tirs(struct mlx5e_priv *priv);
1031 void mlx5e_destroy_direct_tirs(struct mlx5e_priv *priv);
1032 void mlx5e_destroy_rqt(struct mlx5e_priv *priv, struct mlx5e_rqt *rqt);
1033 
1034 struct ttc_params {
1035 	struct mlx5_flow_table_attr ft_attr;
1036 	u32 any_tt_tirn;
1037 	u32 indir_tirn[MLX5E_NUM_INDIR_TIRS];
1038 	struct mlx5e_ttc_table *inner_ttc;
1039 };
1040 
1041 void mlx5e_set_ttc_basic_params(struct mlx5e_priv *priv, struct ttc_params *ttc_params);
1042 void mlx5e_set_ttc_ft_params(struct ttc_params *ttc_params);
1043 void mlx5e_set_inner_ttc_ft_params(struct ttc_params *ttc_params);
1044 
1045 int mlx5e_create_ttc_table(struct mlx5e_priv *priv, struct ttc_params *params,
1046 			   struct mlx5e_ttc_table *ttc);
1047 void mlx5e_destroy_ttc_table(struct mlx5e_priv *priv,
1048 			     struct mlx5e_ttc_table *ttc);
1049 
1050 int mlx5e_create_inner_ttc_table(struct mlx5e_priv *priv, struct ttc_params *params,
1051 				 struct mlx5e_ttc_table *ttc);
1052 void mlx5e_destroy_inner_ttc_table(struct mlx5e_priv *priv,
1053 				   struct mlx5e_ttc_table *ttc);
1054 
1055 int mlx5e_create_tis(struct mlx5_core_dev *mdev, int tc,
1056 		     u32 underlay_qpn, u32 *tisn);
1057 void mlx5e_destroy_tis(struct mlx5_core_dev *mdev, u32 tisn);
1058 
1059 int mlx5e_create_tises(struct mlx5e_priv *priv);
1060 void mlx5e_cleanup_nic_tx(struct mlx5e_priv *priv);
1061 int mlx5e_close(struct net_device *netdev);
1062 int mlx5e_open(struct net_device *netdev);
1063 void mlx5e_update_stats_work(struct work_struct *work);
1064 u32 mlx5e_choose_lro_timeout(struct mlx5_core_dev *mdev, u32 wanted_timeout);
1065 
1066 int mlx5e_bits_invert(unsigned long a, int size);
1067 
1068 /* ethtool helpers */
1069 void mlx5e_ethtool_get_drvinfo(struct mlx5e_priv *priv,
1070 			       struct ethtool_drvinfo *drvinfo);
1071 void mlx5e_ethtool_get_strings(struct mlx5e_priv *priv,
1072 			       uint32_t stringset, uint8_t *data);
1073 int mlx5e_ethtool_get_sset_count(struct mlx5e_priv *priv, int sset);
1074 void mlx5e_ethtool_get_ethtool_stats(struct mlx5e_priv *priv,
1075 				     struct ethtool_stats *stats, u64 *data);
1076 void mlx5e_ethtool_get_ringparam(struct mlx5e_priv *priv,
1077 				 struct ethtool_ringparam *param);
1078 int mlx5e_ethtool_set_ringparam(struct mlx5e_priv *priv,
1079 				struct ethtool_ringparam *param);
1080 void mlx5e_ethtool_get_channels(struct mlx5e_priv *priv,
1081 				struct ethtool_channels *ch);
1082 int mlx5e_ethtool_set_channels(struct mlx5e_priv *priv,
1083 			       struct ethtool_channels *ch);
1084 int mlx5e_ethtool_get_coalesce(struct mlx5e_priv *priv,
1085 			       struct ethtool_coalesce *coal);
1086 int mlx5e_ethtool_set_coalesce(struct mlx5e_priv *priv,
1087 			       struct ethtool_coalesce *coal);
1088 int mlx5e_ethtool_get_ts_info(struct mlx5e_priv *priv,
1089 			      struct ethtool_ts_info *info);
1090 int mlx5e_ethtool_flash_device(struct mlx5e_priv *priv,
1091 			       struct ethtool_flash *flash);
1092 
1093 int mlx5e_setup_tc_block_cb(enum tc_setup_type type, void *type_data,
1094 			    void *cb_priv);
1095 
1096 /* mlx5e generic netdev management API */
1097 struct net_device*
1098 mlx5e_create_netdev(struct mlx5_core_dev *mdev, const struct mlx5e_profile *profile,
1099 		    void *ppriv);
1100 int mlx5e_attach_netdev(struct mlx5e_priv *priv);
1101 void mlx5e_detach_netdev(struct mlx5e_priv *priv);
1102 void mlx5e_destroy_netdev(struct mlx5e_priv *priv);
1103 void mlx5e_build_nic_params(struct mlx5_core_dev *mdev,
1104 			    struct mlx5e_params *params,
1105 			    u16 max_channels);
1106 u8 mlx5e_params_calculate_tx_min_inline(struct mlx5_core_dev *mdev);
1107 void mlx5e_rx_dim_work(struct work_struct *work);
1108 #endif /* __MLX5_EN_H__ */
1109