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1/* SPDX-License-Identifier: (GPL-2.0-only OR BSD-3-Clause) */
2/* QLogic qede NIC Driver
3 * Copyright (c) 2015-2017 QLogic Corporation
4 * Copyright (c) 2019-2020 Marvell International Ltd.
5 */
6
7#ifndef _QEDE_H_
8#define _QEDE_H_
9#include <linux/workqueue.h>
10#include <linux/netdevice.h>
11#include <linux/interrupt.h>
12#include <linux/bitmap.h>
13#include <linux/kernel.h>
14#include <linux/mutex.h>
15#include <linux/bpf.h>
16#include <net/xdp.h>
17#include <linux/qed/qede_rdma.h>
18#include <linux/io.h>
19#ifdef CONFIG_RFS_ACCEL
20#include <linux/cpu_rmap.h>
21#endif
22#include <linux/qed/common_hsi.h>
23#include <linux/qed/eth_common.h>
24#include <linux/qed/qed_if.h>
25#include <linux/qed/qed_chain.h>
26#include <linux/qed/qed_eth_if.h>
27
28#include <net/pkt_cls.h>
29#include <net/tc_act/tc_gact.h>
30
31#define DRV_MODULE_SYM qede
32
33struct qede_stats_common {
34 u64 no_buff_discards;
35 u64 packet_too_big_discard;
36 u64 ttl0_discard;
37 u64 rx_ucast_bytes;
38 u64 rx_mcast_bytes;
39 u64 rx_bcast_bytes;
40 u64 rx_ucast_pkts;
41 u64 rx_mcast_pkts;
42 u64 rx_bcast_pkts;
43 u64 mftag_filter_discards;
44 u64 mac_filter_discards;
45 u64 gft_filter_drop;
46 u64 tx_ucast_bytes;
47 u64 tx_mcast_bytes;
48 u64 tx_bcast_bytes;
49 u64 tx_ucast_pkts;
50 u64 tx_mcast_pkts;
51 u64 tx_bcast_pkts;
52 u64 tx_err_drop_pkts;
53 u64 coalesced_pkts;
54 u64 coalesced_events;
55 u64 coalesced_aborts_num;
56 u64 non_coalesced_pkts;
57 u64 coalesced_bytes;
58 u64 link_change_count;
59 u64 ptp_skip_txts;
60
61 /* port */
62 u64 rx_64_byte_packets;
63 u64 rx_65_to_127_byte_packets;
64 u64 rx_128_to_255_byte_packets;
65 u64 rx_256_to_511_byte_packets;
66 u64 rx_512_to_1023_byte_packets;
67 u64 rx_1024_to_1518_byte_packets;
68 u64 rx_crc_errors;
69 u64 rx_mac_crtl_frames;
70 u64 rx_pause_frames;
71 u64 rx_pfc_frames;
72 u64 rx_align_errors;
73 u64 rx_carrier_errors;
74 u64 rx_oversize_packets;
75 u64 rx_jabbers;
76 u64 rx_undersize_packets;
77 u64 rx_fragments;
78 u64 tx_64_byte_packets;
79 u64 tx_65_to_127_byte_packets;
80 u64 tx_128_to_255_byte_packets;
81 u64 tx_256_to_511_byte_packets;
82 u64 tx_512_to_1023_byte_packets;
83 u64 tx_1024_to_1518_byte_packets;
84 u64 tx_pause_frames;
85 u64 tx_pfc_frames;
86 u64 brb_truncates;
87 u64 brb_discards;
88 u64 tx_mac_ctrl_frames;
89};
90
91struct qede_stats_bb {
92 u64 rx_1519_to_1522_byte_packets;
93 u64 rx_1519_to_2047_byte_packets;
94 u64 rx_2048_to_4095_byte_packets;
95 u64 rx_4096_to_9216_byte_packets;
96 u64 rx_9217_to_16383_byte_packets;
97 u64 tx_1519_to_2047_byte_packets;
98 u64 tx_2048_to_4095_byte_packets;
99 u64 tx_4096_to_9216_byte_packets;
100 u64 tx_9217_to_16383_byte_packets;
101 u64 tx_lpi_entry_count;
102 u64 tx_total_collisions;
103};
104
105struct qede_stats_ah {
106 u64 rx_1519_to_max_byte_packets;
107 u64 tx_1519_to_max_byte_packets;
108};
109
110struct qede_stats {
111 struct qede_stats_common common;
112
113 union {
114 struct qede_stats_bb bb;
115 struct qede_stats_ah ah;
116 };
117};
118
119struct qede_vlan {
120 struct list_head list;
121 u16 vid;
122 bool configured;
123};
124
125struct qede_rdma_dev {
126 struct qedr_dev *qedr_dev;
127 struct list_head entry;
128 struct list_head rdma_event_list;
129 struct workqueue_struct *rdma_wq;
130 struct kref refcnt;
131 struct completion event_comp;
132 bool exp_recovery;
133};
134
135struct qede_ptp;
136
137#define QEDE_RFS_MAX_FLTR 256
138
139enum qede_flags_bit {
140 QEDE_FLAGS_IS_VF = 0,
141 QEDE_FLAGS_LINK_REQUESTED,
142 QEDE_FLAGS_PTP_TX_IN_PRORGESS,
143 QEDE_FLAGS_TX_TIMESTAMPING_EN
144};
145
146#define QEDE_DUMP_MAX_ARGS 4
147enum qede_dump_cmd {
148 QEDE_DUMP_CMD_NONE = 0,
149 QEDE_DUMP_CMD_NVM_CFG,
150 QEDE_DUMP_CMD_GRCDUMP,
151 QEDE_DUMP_CMD_MAX
152};
153
154struct qede_dump_info {
155 enum qede_dump_cmd cmd;
156 u8 num_args;
157 u32 args[QEDE_DUMP_MAX_ARGS];
158};
159
160struct qede_coalesce {
161 bool isvalid;
162 u16 rxc;
163 u16 txc;
164};
165
166struct qede_dev {
167 struct qed_dev *cdev;
168 struct net_device *ndev;
169 struct pci_dev *pdev;
170 struct devlink *devlink;
171
172 u32 dp_module;
173 u8 dp_level;
174
175 unsigned long flags;
176#define IS_VF(edev) test_bit(QEDE_FLAGS_IS_VF, \
177 &(edev)->flags)
178
179 const struct qed_eth_ops *ops;
180 struct qede_ptp *ptp;
181 u64 ptp_skip_txts;
182
183 struct qed_dev_eth_info dev_info;
184#define QEDE_MAX_RSS_CNT(edev) ((edev)->dev_info.num_queues)
185#define QEDE_MAX_TSS_CNT(edev) ((edev)->dev_info.num_queues)
186#define QEDE_IS_BB(edev) \
187 ((edev)->dev_info.common.dev_type == QED_DEV_TYPE_BB)
188#define QEDE_IS_AH(edev) \
189 ((edev)->dev_info.common.dev_type == QED_DEV_TYPE_AH)
190
191 struct qede_fastpath *fp_array;
192 struct qede_coalesce *coal_entry;
193 u8 req_num_tx;
194 u8 fp_num_tx;
195 u8 req_num_rx;
196 u8 fp_num_rx;
197 u16 req_queues;
198 u16 num_queues;
199 u16 total_xdp_queues;
200
201#define QEDE_QUEUE_CNT(edev) ((edev)->num_queues)
202#define QEDE_RSS_COUNT(edev) ((edev)->num_queues - (edev)->fp_num_tx)
203#define QEDE_RX_QUEUE_IDX(edev, i) (i)
204#define QEDE_TSS_COUNT(edev) ((edev)->num_queues - (edev)->fp_num_rx)
205
206 struct qed_int_info int_info;
207
208 /* Smaller private variant of the RTNL lock */
209 struct mutex qede_lock;
210 u32 state; /* Protected by qede_lock */
211 u16 rx_buf_size;
212 u32 rx_copybreak;
213
214 /* L2 header size + 2*VLANs (8 bytes) + LLC SNAP (8 bytes) */
215#define ETH_OVERHEAD (ETH_HLEN + 8 + 8)
216 /* Max supported alignment is 256 (8 shift)
217 * minimal alignment shift 6 is optimal for 57xxx HW performance
218 */
219#define QEDE_RX_ALIGN_SHIFT max(6, min(8, L1_CACHE_SHIFT))
220 /* We assume skb_build() uses sizeof(struct skb_shared_info) bytes
221 * at the end of skb->data, to avoid wasting a full cache line.
222 * This reduces memory use (skb->truesize).
223 */
224#define QEDE_FW_RX_ALIGN_END \
225 max_t(u64, 1UL << QEDE_RX_ALIGN_SHIFT, \
226 SKB_DATA_ALIGN(sizeof(struct skb_shared_info)))
227
228 struct qede_stats stats;
229
230 /* Bitfield to track initialized RSS params */
231 u32 rss_params_inited;
232#define QEDE_RSS_INDIR_INITED BIT(0)
233#define QEDE_RSS_KEY_INITED BIT(1)
234#define QEDE_RSS_CAPS_INITED BIT(2)
235
236 u16 rss_ind_table[128];
237 u32 rss_key[10];
238 u8 rss_caps;
239
240 /* Both must be a power of two */
241 u16 q_num_rx_buffers;
242 u16 q_num_tx_buffers;
243
244 bool gro_disable;
245
246 struct list_head vlan_list;
247 u16 configured_vlans;
248 u16 non_configured_vlans;
249 bool accept_any_vlan;
250
251 struct delayed_work sp_task;
252 unsigned long sp_flags;
253 u16 vxlan_dst_port;
254 u16 geneve_dst_port;
255
256 struct qede_arfs *arfs;
257 bool wol_enabled;
258
259 struct qede_rdma_dev rdma_info;
260
261 struct bpf_prog *xdp_prog;
262
263 enum qed_hw_err_type last_err_type;
264 unsigned long err_flags;
265#define QEDE_ERR_IS_HANDLED 31
266#define QEDE_ERR_ATTN_CLR_EN 0
267#define QEDE_ERR_GET_DBG_INFO 1
268#define QEDE_ERR_IS_RECOVERABLE 2
269#define QEDE_ERR_WARN 3
270
271 struct qede_dump_info dump_info;
272 struct delayed_work periodic_task;
273 unsigned long stats_coal_ticks;
274 u32 stats_coal_usecs;
275 spinlock_t stats_lock; /* lock for vport stats access */
276};
277
278enum QEDE_STATE {
279 QEDE_STATE_CLOSED,
280 QEDE_STATE_OPEN,
281 QEDE_STATE_RECOVERY,
282};
283
284#define HILO_U64(hi, lo) ((((u64)(hi)) << 32) + (lo))
285
286#define MAX_NUM_TC 8
287#define MAX_NUM_PRI 8
288
289/* The driver supports the new build_skb() API:
290 * RX ring buffer contains pointer to kmalloc() data only,
291 * skb are built only after the frame was DMA-ed.
292 */
293struct sw_rx_data {
294 struct page *data;
295 dma_addr_t mapping;
296 unsigned int page_offset;
297};
298
299enum qede_agg_state {
300 QEDE_AGG_STATE_NONE = 0,
301 QEDE_AGG_STATE_START = 1,
302 QEDE_AGG_STATE_ERROR = 2
303};
304
305struct qede_agg_info {
306 /* rx_buf is a data buffer that can be placed / consumed from rx bd
307 * chain. It has two purposes: We will preallocate the data buffer
308 * for each aggregation when we open the interface and will place this
309 * buffer on the rx-bd-ring when we receive TPA_START. We don't want
310 * to be in a state where allocation fails, as we can't reuse the
311 * consumer buffer in the rx-chain since FW may still be writing to it
312 * (since header needs to be modified for TPA).
313 * The second purpose is to keep a pointer to the bd buffer during
314 * aggregation.
315 */
316 struct sw_rx_data buffer;
317 struct sk_buff *skb;
318
319 /* We need some structs from the start cookie until termination */
320 u16 vlan_tag;
321
322 bool tpa_start_fail;
323 u8 state;
324 u8 frag_id;
325
326 u8 tunnel_type;
327};
328
329struct qede_rx_queue {
330 __le16 *hw_cons_ptr;
331 void __iomem *hw_rxq_prod_addr;
332
333 /* Required for the allocation of replacement buffers */
334 struct device *dev;
335
336 struct bpf_prog *xdp_prog;
337
338 u16 sw_rx_cons;
339 u16 sw_rx_prod;
340
341 u16 filled_buffers;
342 u8 data_direction;
343 u8 rxq_id;
344
345 /* Used once per each NAPI run */
346 u16 num_rx_buffers;
347
348 u16 rx_headroom;
349
350 u32 rx_buf_size;
351 u32 rx_buf_seg_size;
352
353 struct sw_rx_data *sw_rx_ring;
354 struct qed_chain rx_bd_ring;
355 struct qed_chain rx_comp_ring ____cacheline_aligned;
356
357 /* GRO */
358 struct qede_agg_info tpa_info[ETH_TPA_MAX_AGGS_NUM];
359
360 /* Used once per each NAPI run */
361 u64 rcv_pkts;
362
363 u64 rx_hw_errors;
364 u64 rx_alloc_errors;
365 u64 rx_ip_frags;
366
367 u64 xdp_no_pass;
368
369 void *handle;
370 struct xdp_rxq_info xdp_rxq;
371};
372
373union db_prod {
374 struct eth_db_data data;
375 u32 raw;
376};
377
378struct sw_tx_bd {
379 struct sk_buff *skb;
380 u8 flags;
381/* Set on the first BD descriptor when there is a split BD */
382#define QEDE_TSO_SPLIT_BD BIT(0)
383};
384
385struct sw_tx_xdp {
386 struct page *page;
387 struct xdp_frame *xdpf;
388 dma_addr_t mapping;
389};
390
391struct qede_tx_queue {
392 u8 is_xdp;
393 bool is_legacy;
394 u16 sw_tx_cons;
395 u16 sw_tx_prod;
396 u16 num_tx_buffers; /* Slowpath only */
397
398 u64 xmit_pkts;
399 u64 stopped_cnt;
400 u64 tx_mem_alloc_err;
401
402 __le16 *hw_cons_ptr;
403
404 /* Needed for the mapping of packets */
405 struct device *dev;
406
407 void __iomem *doorbell_addr;
408 union db_prod tx_db;
409
410 /* Spinlock for XDP queues in case of XDP_REDIRECT */
411 spinlock_t xdp_tx_lock;
412
413 int index; /* Slowpath only */
414#define QEDE_TXQ_XDP_TO_IDX(edev, txq) ((txq)->index - \
415 QEDE_MAX_TSS_CNT(edev))
416#define QEDE_TXQ_IDX_TO_XDP(edev, idx) ((idx) + QEDE_MAX_TSS_CNT(edev))
417#define QEDE_NDEV_TXQ_ID_TO_FP_ID(edev, idx) ((edev)->fp_num_rx + \
418 ((idx) % QEDE_TSS_COUNT(edev)))
419#define QEDE_NDEV_TXQ_ID_TO_TXQ_COS(edev, idx) ((idx) / QEDE_TSS_COUNT(edev))
420#define QEDE_TXQ_TO_NDEV_TXQ_ID(edev, txq) ((QEDE_TSS_COUNT(edev) * \
421 (txq)->cos) + (txq)->index)
422#define QEDE_NDEV_TXQ_ID_TO_TXQ(edev, idx) \
423 (&((edev)->fp_array[QEDE_NDEV_TXQ_ID_TO_FP_ID(edev, idx)].txq \
424 [QEDE_NDEV_TXQ_ID_TO_TXQ_COS(edev, idx)]))
425#define QEDE_FP_TC0_TXQ(fp) (&((fp)->txq[0]))
426
427 /* Regular Tx requires skb + metadata for release purpose,
428 * while XDP requires the pages and the mapped address.
429 */
430 union {
431 struct sw_tx_bd *skbs;
432 struct sw_tx_xdp *xdp;
433 } sw_tx_ring;
434
435 struct qed_chain tx_pbl;
436
437 /* Slowpath; Should be kept in end [unless missing padding] */
438 void *handle;
439 u16 cos;
440 u16 ndev_txq_id;
441};
442
443#define BD_UNMAP_ADDR(bd) HILO_U64(le32_to_cpu((bd)->addr.hi), \
444 le32_to_cpu((bd)->addr.lo))
445#define BD_SET_UNMAP_ADDR_LEN(bd, maddr, len) \
446 do { \
447 (bd)->addr.hi = cpu_to_le32(upper_32_bits(maddr)); \
448 (bd)->addr.lo = cpu_to_le32(lower_32_bits(maddr)); \
449 (bd)->nbytes = cpu_to_le16(len); \
450 } while (0)
451#define BD_UNMAP_LEN(bd) (le16_to_cpu((bd)->nbytes))
452
453struct qede_fastpath {
454 struct qede_dev *edev;
455
456 u8 type;
457#define QEDE_FASTPATH_TX BIT(0)
458#define QEDE_FASTPATH_RX BIT(1)
459#define QEDE_FASTPATH_XDP BIT(2)
460#define QEDE_FASTPATH_COMBINED (QEDE_FASTPATH_TX | QEDE_FASTPATH_RX)
461
462 u8 id;
463
464 u8 xdp_xmit;
465#define QEDE_XDP_TX BIT(0)
466#define QEDE_XDP_REDIRECT BIT(1)
467
468 struct napi_struct napi;
469 struct qed_sb_info *sb_info;
470 struct qede_rx_queue *rxq;
471 struct qede_tx_queue *txq;
472 struct qede_tx_queue *xdp_tx;
473
474 char name[IFNAMSIZ + 8];
475};
476
477/* Debug print definitions */
478#define DP_NAME(edev) netdev_name((edev)->ndev)
479
480#define XMIT_PLAIN 0
481#define XMIT_L4_CSUM BIT(0)
482#define XMIT_LSO BIT(1)
483#define XMIT_ENC BIT(2)
484#define XMIT_ENC_GSO_L4_CSUM BIT(3)
485
486#define QEDE_CSUM_ERROR BIT(0)
487#define QEDE_CSUM_UNNECESSARY BIT(1)
488#define QEDE_TUNN_CSUM_UNNECESSARY BIT(2)
489
490#define QEDE_SP_RECOVERY 0
491#define QEDE_SP_RX_MODE 1
492#define QEDE_SP_RSVD1 2
493#define QEDE_SP_RSVD2 3
494#define QEDE_SP_HW_ERR 4
495#define QEDE_SP_ARFS_CONFIG 5
496#define QEDE_SP_AER 7
497#define QEDE_SP_DISABLE 8
498
499#ifdef CONFIG_RFS_ACCEL
500int qede_rx_flow_steer(struct net_device *dev, const struct sk_buff *skb,
501 u16 rxq_index, u32 flow_id);
502#define QEDE_SP_TASK_POLL_DELAY (5 * HZ)
503#endif
504
505void qede_process_arfs_filters(struct qede_dev *edev, bool free_fltr);
506void qede_poll_for_freeing_arfs_filters(struct qede_dev *edev);
507void qede_arfs_filter_op(void *dev, void *filter, u8 fw_rc);
508void qede_free_arfs(struct qede_dev *edev);
509int qede_alloc_arfs(struct qede_dev *edev);
510int qede_add_cls_rule(struct qede_dev *edev, struct ethtool_rxnfc *info);
511int qede_delete_flow_filter(struct qede_dev *edev, u64 cookie);
512int qede_get_cls_rule_entry(struct qede_dev *edev, struct ethtool_rxnfc *cmd);
513int qede_get_cls_rule_all(struct qede_dev *edev, struct ethtool_rxnfc *info,
514 u32 *rule_locs);
515int qede_get_arfs_filter_count(struct qede_dev *edev);
516
517struct qede_reload_args {
518 void (*func)(struct qede_dev *edev, struct qede_reload_args *args);
519 union {
520 netdev_features_t features;
521 struct bpf_prog *new_prog;
522 u16 mtu;
523 } u;
524};
525
526/* Datapath functions definition */
527netdev_tx_t qede_start_xmit(struct sk_buff *skb, struct net_device *ndev);
528int qede_xdp_transmit(struct net_device *dev, int n_frames,
529 struct xdp_frame **frames, u32 flags);
530u16 qede_select_queue(struct net_device *dev, struct sk_buff *skb,
531 struct net_device *sb_dev);
532netdev_features_t qede_features_check(struct sk_buff *skb,
533 struct net_device *dev,
534 netdev_features_t features);
535int qede_alloc_rx_buffer(struct qede_rx_queue *rxq, bool allow_lazy);
536int qede_free_tx_pkt(struct qede_dev *edev,
537 struct qede_tx_queue *txq, int *len);
538int qede_poll(struct napi_struct *napi, int budget);
539irqreturn_t qede_msix_fp_int(int irq, void *fp_cookie);
540
541/* Filtering function definitions */
542void qede_force_mac(void *dev, u8 *mac, bool forced);
543void qede_udp_ports_update(void *dev, u16 vxlan_port, u16 geneve_port);
544int qede_set_mac_addr(struct net_device *ndev, void *p);
545
546int qede_vlan_rx_add_vid(struct net_device *dev, __be16 proto, u16 vid);
547int qede_vlan_rx_kill_vid(struct net_device *dev, __be16 proto, u16 vid);
548void qede_vlan_mark_nonconfigured(struct qede_dev *edev);
549int qede_configure_vlan_filters(struct qede_dev *edev);
550
551netdev_features_t qede_fix_features(struct net_device *dev,
552 netdev_features_t features);
553int qede_set_features(struct net_device *dev, netdev_features_t features);
554void qede_set_rx_mode(struct net_device *ndev);
555void qede_config_rx_mode(struct net_device *ndev);
556void qede_fill_rss_params(struct qede_dev *edev,
557 struct qed_update_vport_rss_params *rss, u8 *update);
558
559int qede_xdp(struct net_device *dev, struct netdev_bpf *xdp);
560
561#ifdef CONFIG_DCB
562void qede_set_dcbnl_ops(struct net_device *ndev);
563#endif
564
565void qede_config_debug(uint debug, u32 *p_dp_module, u8 *p_dp_level);
566void qede_set_ethtool_ops(struct net_device *netdev);
567void qede_set_udp_tunnels(struct qede_dev *edev);
568void qede_reload(struct qede_dev *edev,
569 struct qede_reload_args *args, bool is_locked);
570int qede_change_mtu(struct net_device *dev, int new_mtu);
571void qede_fill_by_demand_stats(struct qede_dev *edev);
572void __qede_lock(struct qede_dev *edev);
573void __qede_unlock(struct qede_dev *edev);
574bool qede_has_rx_work(struct qede_rx_queue *rxq);
575int qede_txq_has_work(struct qede_tx_queue *txq);
576void qede_recycle_rx_bd_ring(struct qede_rx_queue *rxq, u8 count);
577void qede_update_rx_prod(struct qede_dev *edev, struct qede_rx_queue *rxq);
578int qede_add_tc_flower_fltr(struct qede_dev *edev, __be16 proto,
579 struct flow_cls_offload *f);
580
581void qede_forced_speed_maps_init(void);
582int qede_set_coalesce(struct net_device *dev, struct ethtool_coalesce *coal,
583 struct kernel_ethtool_coalesce *kernel_coal,
584 struct netlink_ext_ack *extack);
585int qede_set_per_coalesce(struct net_device *dev, u32 queue,
586 struct ethtool_coalesce *coal);
587
588#define RX_RING_SIZE_POW 13
589#define RX_RING_SIZE ((u16)BIT(RX_RING_SIZE_POW))
590#define NUM_RX_BDS_MAX (RX_RING_SIZE - 1)
591#define NUM_RX_BDS_MIN 128
592#define NUM_RX_BDS_KDUMP_MIN 63
593#define NUM_RX_BDS_DEF ((u16)BIT(10) - 1)
594
595#define TX_RING_SIZE_POW 13
596#define TX_RING_SIZE ((u16)BIT(TX_RING_SIZE_POW))
597#define NUM_TX_BDS_MAX (TX_RING_SIZE - 1)
598#define NUM_TX_BDS_MIN 128
599#define NUM_TX_BDS_KDUMP_MIN 63
600#define NUM_TX_BDS_DEF NUM_TX_BDS_MAX
601
602#define QEDE_MIN_PKT_LEN 64
603#define QEDE_RX_HDR_SIZE 256
604#define QEDE_MAX_JUMBO_PACKET_SIZE 9600
605#define for_each_queue(i) for (i = 0; i < edev->num_queues; i++)
606#define for_each_cos_in_txq(edev, var) \
607 for ((var) = 0; (var) < (edev)->dev_info.num_tc; (var)++)
608
609#endif /* _QEDE_H_ */