1/* SPDX-License-Identifier: (GPL-2.0-only OR BSD-3-Clause) */
2/* QLogic qed NIC Driver
3 * Copyright (c) 2015-2017  QLogic Corporation
4 * Copyright (c) 2019-2020 Marvell International Ltd.
5 */
6
7#ifndef _QED_L2_H
8#define _QED_L2_H
9#include <linux/types.h>
10#include <linux/io.h>
11#include <linux/kernel.h>
12#include <linux/slab.h>
13#include <linux/qed/qed_eth_if.h>
14#include "qed.h"
15#include "qed_hw.h"
16#include "qed_sp.h"
17struct qed_rss_params {
18	u8 update_rss_config;
19	u8 rss_enable;
20	u8 rss_eng_id;
21	u8 update_rss_capabilities;
22	u8 update_rss_ind_table;
23	u8 update_rss_key;
24	u8 rss_caps;
25	u8 rss_table_size_log;
26
27	/* Indirection table consist of rx queue handles */
28	void *rss_ind_table[QED_RSS_IND_TABLE_SIZE];
29	u32 rss_key[QED_RSS_KEY_SIZE];
30};
31
32struct qed_sge_tpa_params {
33	u8 max_buffers_per_cqe;
34
35	u8 update_tpa_en_flg;
36	u8 tpa_ipv4_en_flg;
37	u8 tpa_ipv6_en_flg;
38	u8 tpa_ipv4_tunn_en_flg;
39	u8 tpa_ipv6_tunn_en_flg;
40
41	u8 update_tpa_param_flg;
42	u8 tpa_pkt_split_flg;
43	u8 tpa_hdr_data_split_flg;
44	u8 tpa_gro_consistent_flg;
45	u8 tpa_max_aggs_num;
46	u16 tpa_max_size;
47	u16 tpa_min_size_to_start;
48	u16 tpa_min_size_to_cont;
49};
50
51enum qed_filter_opcode {
52	QED_FILTER_ADD,
53	QED_FILTER_REMOVE,
54	QED_FILTER_MOVE,
55	QED_FILTER_REPLACE,	/* Delete all MACs and add new one instead */
56	QED_FILTER_FLUSH,	/* Removes all filters */
57};
58
59enum qed_filter_ucast_type {
60	QED_FILTER_MAC,
61	QED_FILTER_VLAN,
62	QED_FILTER_MAC_VLAN,
63	QED_FILTER_INNER_MAC,
64	QED_FILTER_INNER_VLAN,
65	QED_FILTER_INNER_PAIR,
66	QED_FILTER_INNER_MAC_VNI_PAIR,
67	QED_FILTER_MAC_VNI_PAIR,
68	QED_FILTER_VNI,
69};
70
71struct qed_filter_ucast {
72	enum qed_filter_opcode opcode;
73	enum qed_filter_ucast_type type;
74	u8 is_rx_filter;
75	u8 is_tx_filter;
76	u8 vport_to_add_to;
77	u8 vport_to_remove_from;
78	unsigned char mac[ETH_ALEN];
79	u8 assert_on_error;
80	u16 vlan;
81	u32 vni;
82};
83
84struct qed_filter_mcast {
85	/* MOVE is not supported for multicast */
86	enum qed_filter_opcode opcode;
87	u8 vport_to_add_to;
88	u8 vport_to_remove_from;
89	u8 num_mc_addrs;
90#define QED_MAX_MC_ADDRS        64
91	unsigned char mac[QED_MAX_MC_ADDRS][ETH_ALEN];
92};
93
94/**
95 * @brief qed_eth_rx_queue_stop - This ramrod closes an Rx queue
96 *
97 * @param p_hwfn
98 * @param p_rxq			Handler of queue to close
99 * @param eq_completion_only	If True completion will be on
100 *				EQe, if False completion will be
101 *				on EQe if p_hwfn opaque
102 *				different from the RXQ opaque
103 *				otherwise on CQe.
104 * @param cqe_completion	If True completion will be
105 *				receive on CQe.
106 * @return int
107 */
108int
109qed_eth_rx_queue_stop(struct qed_hwfn *p_hwfn,
110		      void *p_rxq,
111		      bool eq_completion_only, bool cqe_completion);
112
113/**
114 * @brief qed_eth_tx_queue_stop - closes a Tx queue
115 *
116 * @param p_hwfn
117 * @param p_txq - handle to Tx queue needed to be closed
118 *
119 * @return int
120 */
121int qed_eth_tx_queue_stop(struct qed_hwfn *p_hwfn, void *p_txq);
122
123enum qed_tpa_mode {
124	QED_TPA_MODE_NONE,
125	QED_TPA_MODE_UNUSED,
126	QED_TPA_MODE_GRO,
127	QED_TPA_MODE_MAX
128};
129
130struct qed_sp_vport_start_params {
131	enum qed_tpa_mode tpa_mode;
132	bool remove_inner_vlan;
133	bool tx_switching;
134	bool handle_ptp_pkts;
135	bool only_untagged;
136	bool drop_ttl0;
137	u8 max_buffers_per_cqe;
138	u32 concrete_fid;
139	u16 opaque_fid;
140	u8 vport_id;
141	u16 mtu;
142	bool check_mac;
143	bool check_ethtype;
144};
145
146int qed_sp_eth_vport_start(struct qed_hwfn *p_hwfn,
147			   struct qed_sp_vport_start_params *p_params);
148
149
150struct qed_filter_accept_flags {
151	u8	update_rx_mode_config;
152	u8	update_tx_mode_config;
153	u8	rx_accept_filter;
154	u8	tx_accept_filter;
155#define QED_ACCEPT_NONE         0x01
156#define QED_ACCEPT_UCAST_MATCHED        0x02
157#define QED_ACCEPT_UCAST_UNMATCHED      0x04
158#define QED_ACCEPT_MCAST_MATCHED        0x08
159#define QED_ACCEPT_MCAST_UNMATCHED      0x10
160#define QED_ACCEPT_BCAST                0x20
161#define QED_ACCEPT_ANY_VNI              0x40
162};
163
164struct qed_arfs_config_params {
165	bool tcp;
166	bool udp;
167	bool ipv4;
168	bool ipv6;
169	enum qed_filter_config_mode mode;
170};
171
172struct qed_sp_vport_update_params {
173	u16				opaque_fid;
174	u8				vport_id;
175	u8				update_vport_active_rx_flg;
176	u8				vport_active_rx_flg;
177	u8				update_vport_active_tx_flg;
178	u8				vport_active_tx_flg;
179	u8				update_inner_vlan_removal_flg;
180	u8				inner_vlan_removal_flg;
181	u8				silent_vlan_removal_flg;
182	u8				update_default_vlan_enable_flg;
183	u8				default_vlan_enable_flg;
184	u8				update_default_vlan_flg;
185	u16				default_vlan;
186	u8				update_tx_switching_flg;
187	u8				tx_switching_flg;
188	u8				update_approx_mcast_flg;
189	u8				update_anti_spoofing_en_flg;
190	u8				anti_spoofing_en;
191	u8				update_accept_any_vlan_flg;
192	u8				accept_any_vlan;
193	u32				bins[8];
194	struct qed_rss_params		*rss_params;
195	struct qed_filter_accept_flags	accept_flags;
196	struct qed_sge_tpa_params	*sge_tpa_params;
197	u8				update_ctl_frame_check;
198	u8				mac_chk_en;
199	u8				ethtype_chk_en;
200};
201
202int qed_sp_vport_update(struct qed_hwfn *p_hwfn,
203			struct qed_sp_vport_update_params *p_params,
204			enum spq_mode comp_mode,
205			struct qed_spq_comp_cb *p_comp_data);
206
207/**
208 * @brief qed_sp_vport_stop -
209 *
210 * This ramrod closes a VPort after all its RX and TX queues are terminated.
211 * An Assert is generated if any queues are left open.
212 *
213 * @param p_hwfn
214 * @param opaque_fid
215 * @param vport_id VPort ID
216 *
217 * @return int
218 */
219int qed_sp_vport_stop(struct qed_hwfn *p_hwfn, u16 opaque_fid, u8 vport_id);
220
221int qed_sp_eth_filter_ucast(struct qed_hwfn *p_hwfn,
222			    u16 opaque_fid,
223			    struct qed_filter_ucast *p_filter_cmd,
224			    enum spq_mode comp_mode,
225			    struct qed_spq_comp_cb *p_comp_data);
226
227/**
228 * @brief qed_sp_rx_eth_queues_update -
229 *
230 * This ramrod updates an RX queue. It is used for setting the active state
231 * of the queue and updating the TPA and SGE parameters.
232 *
233 * @note At the moment - only used by non-linux VFs.
234 *
235 * @param p_hwfn
236 * @param pp_rxq_handlers	An array of queue handlers to be updated.
237 * @param num_rxqs              number of queues to update.
238 * @param complete_cqe_flg	Post completion to the CQE Ring if set
239 * @param complete_event_flg	Post completion to the Event Ring if set
240 * @param comp_mode
241 * @param p_comp_data
242 *
243 * @return int
244 */
245
246int
247qed_sp_eth_rx_queues_update(struct qed_hwfn *p_hwfn,
248			    void **pp_rxq_handlers,
249			    u8 num_rxqs,
250			    u8 complete_cqe_flg,
251			    u8 complete_event_flg,
252			    enum spq_mode comp_mode,
253			    struct qed_spq_comp_cb *p_comp_data);
254
255void qed_get_vport_stats(struct qed_dev *cdev, struct qed_eth_stats *stats);
256
257void qed_reset_vport_stats(struct qed_dev *cdev);
258
259/**
260 * *@brief qed_arfs_mode_configure -
261 *
262 **Enable or disable rfs mode. It must accept atleast one of tcp or udp true
263 **and atleast one of ipv4 or ipv6 true to enable rfs mode.
264 *
265 **@param p_hwfn
266 **@param p_ptt
267 **@param p_cfg_params - arfs mode configuration parameters.
268 *
269 */
270void qed_arfs_mode_configure(struct qed_hwfn *p_hwfn,
271			     struct qed_ptt *p_ptt,
272			     struct qed_arfs_config_params *p_cfg_params);
273
274/**
275 * @brief - qed_configure_rfs_ntuple_filter
276 *
277 * This ramrod should be used to add or remove arfs hw filter
278 *
279 * @params p_hwfn
280 * @params p_cb - Used for QED_SPQ_MODE_CB,where client would initialize
281 *		  it with cookie and callback function address, if not
282 *		  using this mode then client must pass NULL.
283 * @params p_params
284 */
285int
286qed_configure_rfs_ntuple_filter(struct qed_hwfn *p_hwfn,
287				struct qed_spq_comp_cb *p_cb,
288				struct qed_ntuple_filter_params *p_params);
289
290#define MAX_QUEUES_PER_QZONE    (sizeof(unsigned long) * 8)
291#define QED_QUEUE_CID_SELF	(0xff)
292
293/* Almost identical to the qed_queue_start_common_params,
294 * but here we maintain the SB index in IGU CAM.
295 */
296struct qed_queue_cid_params {
297	u8 vport_id;
298	u16 queue_id;
299	u8 stats_id;
300};
301
302/* Additional parameters required for initialization of the queue_cid
303 * and are relevant only for a PF initializing one for its VFs.
304 */
305struct qed_queue_cid_vf_params {
306	/* Should match the VF's relative index */
307	u8 vfid;
308
309	/* 0-based queue index. Should reflect the relative qzone the
310	 * VF thinks is associated with it [in its range].
311	 */
312	u8 vf_qid;
313
314	/* Indicates a VF is legacy, making it differ in several things:
315	 *  - Producers would be placed in a different place.
316	 *  - Makes assumptions regarding the CIDs.
317	 */
318	u8 vf_legacy;
319
320	u8 qid_usage_idx;
321};
322
323struct qed_queue_cid {
324	/* For stats-id, the `rel' is actually absolute as well */
325	struct qed_queue_cid_params rel;
326	struct qed_queue_cid_params abs;
327
328	/* These have no 'relative' meaning */
329	u16 sb_igu_id;
330	u8 sb_idx;
331
332	u32 cid;
333	u16 opaque_fid;
334
335	bool b_is_rx;
336
337	/* VFs queues are mapped differently, so we need to know the
338	 * relative queue associated with them [0-based].
339	 * Notice this is relevant on the *PF* queue-cid of its VF's queues,
340	 * and not on the VF itself.
341	 */
342	u8 vfid;
343	u8 vf_qid;
344
345	/* We need an additional index to differentiate between queues opened
346	 * for same queue-zone, as VFs would have to communicate the info
347	 * to the PF [otherwise PF has no way to differentiate].
348	 */
349	u8 qid_usage_idx;
350
351	u8 vf_legacy;
352#define QED_QCID_LEGACY_VF_RX_PROD	(BIT(0))
353#define QED_QCID_LEGACY_VF_CID		(BIT(1))
354
355	struct qed_hwfn *p_owner;
356};
357
358int qed_l2_alloc(struct qed_hwfn *p_hwfn);
359void qed_l2_setup(struct qed_hwfn *p_hwfn);
360void qed_l2_free(struct qed_hwfn *p_hwfn);
361
362void qed_eth_queue_cid_release(struct qed_hwfn *p_hwfn,
363			       struct qed_queue_cid *p_cid);
364
365struct qed_queue_cid *
366qed_eth_queue_to_cid(struct qed_hwfn *p_hwfn,
367		     u16 opaque_fid,
368		     struct qed_queue_start_common_params *p_params,
369		     bool b_is_rx,
370		     struct qed_queue_cid_vf_params *p_vf_params);
371
372int
373qed_sp_eth_vport_start(struct qed_hwfn *p_hwfn,
374		       struct qed_sp_vport_start_params *p_params);
375
376/**
377 * @brief - Starts an Rx queue, when queue_cid is already prepared
378 *
379 * @param p_hwfn
380 * @param p_cid
381 * @param bd_max_bytes
382 * @param bd_chain_phys_addr
383 * @param cqe_pbl_addr
384 * @param cqe_pbl_size
385 *
386 * @return int
387 */
388int
389qed_eth_rxq_start_ramrod(struct qed_hwfn *p_hwfn,
390			 struct qed_queue_cid *p_cid,
391			 u16 bd_max_bytes,
392			 dma_addr_t bd_chain_phys_addr,
393			 dma_addr_t cqe_pbl_addr, u16 cqe_pbl_size);
394
395/**
396 * @brief - Starts a Tx queue, where queue_cid is already prepared
397 *
398 * @param p_hwfn
399 * @param p_cid
400 * @param pbl_addr
401 * @param pbl_size
402 * @param p_pq_params - parameters for choosing the PQ for this Tx queue
403 *
404 * @return int
405 */
406int
407qed_eth_txq_start_ramrod(struct qed_hwfn *p_hwfn,
408			 struct qed_queue_cid *p_cid,
409			 dma_addr_t pbl_addr, u16 pbl_size, u16 pq_id);
410
411u8 qed_mcast_bin_from_mac(u8 *mac);
412
413int qed_set_rxq_coalesce(struct qed_hwfn *p_hwfn,
414			 struct qed_ptt *p_ptt,
415			 u16 coalesce, struct qed_queue_cid *p_cid);
416
417int qed_set_txq_coalesce(struct qed_hwfn *p_hwfn,
418			 struct qed_ptt *p_ptt,
419			 u16 coalesce, struct qed_queue_cid *p_cid);
420
421int qed_get_rxq_coalesce(struct qed_hwfn *p_hwfn,
422			 struct qed_ptt *p_ptt,
423			 struct qed_queue_cid *p_cid, u16 *p_hw_coal);
424
425int qed_get_txq_coalesce(struct qed_hwfn *p_hwfn,
426			 struct qed_ptt *p_ptt,
427			 struct qed_queue_cid *p_cid, u16 *p_hw_coal);
428
429#endif
430