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"
17 struct 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 
32 struct 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 
51 enum 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 
59 enum 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 
71 struct 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 
84 struct 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  * qed_eth_rx_queue_stop(): This ramrod closes an Rx queue.
96  *
97  * @p_hwfn: HW device data.
98  * @p_rxq: Handler of queue to close
99  * @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  * @cqe_completion: If True completion will be receive on CQe.
105  *
106  * Return: Int.
107  */
108 int
109 qed_eth_rx_queue_stop(struct qed_hwfn *p_hwfn,
110 		      void *p_rxq,
111 		      bool eq_completion_only, bool cqe_completion);
112 
113 /**
114  * qed_eth_tx_queue_stop(): Closes a Tx queue.
115  *
116  * @p_hwfn: HW device data.
117  * @p_txq: handle to Tx queue needed to be closed.
118  *
119  * Return: Int.
120  */
121 int qed_eth_tx_queue_stop(struct qed_hwfn *p_hwfn, void *p_txq);
122 
123 enum 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 
130 struct 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 
146 int qed_sp_eth_vport_start(struct qed_hwfn *p_hwfn,
147 			   struct qed_sp_vport_start_params *p_params);
148 
149 struct qed_filter_accept_flags {
150 	u8	update_rx_mode_config;
151 	u8	update_tx_mode_config;
152 	u8	rx_accept_filter;
153 	u8	tx_accept_filter;
154 #define QED_ACCEPT_NONE         0x01
155 #define QED_ACCEPT_UCAST_MATCHED        0x02
156 #define QED_ACCEPT_UCAST_UNMATCHED      0x04
157 #define QED_ACCEPT_MCAST_MATCHED        0x08
158 #define QED_ACCEPT_MCAST_UNMATCHED      0x10
159 #define QED_ACCEPT_BCAST                0x20
160 #define QED_ACCEPT_ANY_VNI              0x40
161 };
162 
163 struct qed_arfs_config_params {
164 	bool tcp;
165 	bool udp;
166 	bool ipv4;
167 	bool ipv6;
168 	enum qed_filter_config_mode mode;
169 };
170 
171 struct qed_sp_vport_update_params {
172 	u16				opaque_fid;
173 	u8				vport_id;
174 	u8				update_vport_active_rx_flg;
175 	u8				vport_active_rx_flg;
176 	u8				update_vport_active_tx_flg;
177 	u8				vport_active_tx_flg;
178 	u8				update_inner_vlan_removal_flg;
179 	u8				inner_vlan_removal_flg;
180 	u8				silent_vlan_removal_flg;
181 	u8				update_default_vlan_enable_flg;
182 	u8				default_vlan_enable_flg;
183 	u8				update_default_vlan_flg;
184 	u16				default_vlan;
185 	u8				update_tx_switching_flg;
186 	u8				tx_switching_flg;
187 	u8				update_approx_mcast_flg;
188 	u8				update_anti_spoofing_en_flg;
189 	u8				anti_spoofing_en;
190 	u8				update_accept_any_vlan_flg;
191 	u8				accept_any_vlan;
192 	u32				bins[8];
193 	struct qed_rss_params		*rss_params;
194 	struct qed_filter_accept_flags	accept_flags;
195 	struct qed_sge_tpa_params	*sge_tpa_params;
196 	u8				update_ctl_frame_check;
197 	u8				mac_chk_en;
198 	u8				ethtype_chk_en;
199 };
200 
201 int qed_sp_vport_update(struct qed_hwfn *p_hwfn,
202 			struct qed_sp_vport_update_params *p_params,
203 			enum spq_mode comp_mode,
204 			struct qed_spq_comp_cb *p_comp_data);
205 
206 /**
207  * qed_sp_vport_stop: This ramrod closes a VPort after all its
208  *                    RX and TX queues are terminated.
209  *                    An Assert is generated if any queues are left open.
210  *
211  * @p_hwfn: HW device data.
212  * @opaque_fid: Opaque FID
213  * @vport_id: VPort ID.
214  *
215  * Return: Int.
216  */
217 int qed_sp_vport_stop(struct qed_hwfn *p_hwfn, u16 opaque_fid, u8 vport_id);
218 
219 int qed_sp_eth_filter_ucast(struct qed_hwfn *p_hwfn,
220 			    u16 opaque_fid,
221 			    struct qed_filter_ucast *p_filter_cmd,
222 			    enum spq_mode comp_mode,
223 			    struct qed_spq_comp_cb *p_comp_data);
224 
225 /**
226  * qed_sp_eth_rx_queues_update(): This ramrod updates an RX queue.
227  *                                It is used for setting the active state
228  *                                of the queue and updating the TPA and
229  *                                SGE parameters.
230  * @p_hwfn: HW device data.
231  * @pp_rxq_handlers: An array of queue handlers to be updated.
232  * @num_rxqs: number of queues to update.
233  * @complete_cqe_flg: Post completion to the CQE Ring if set.
234  * @complete_event_flg: Post completion to the Event Ring if set.
235  * @comp_mode: Comp mode.
236  * @p_comp_data: Pointer Comp data.
237  *
238  * Return: Int.
239  *
240  * Note At the moment - only used by non-linux VFs.
241  */
242 
243 int
244 qed_sp_eth_rx_queues_update(struct qed_hwfn *p_hwfn,
245 			    void **pp_rxq_handlers,
246 			    u8 num_rxqs,
247 			    u8 complete_cqe_flg,
248 			    u8 complete_event_flg,
249 			    enum spq_mode comp_mode,
250 			    struct qed_spq_comp_cb *p_comp_data);
251 
252 void qed_get_vport_stats(struct qed_dev *cdev, struct qed_eth_stats *stats);
253 
254 void qed_reset_vport_stats(struct qed_dev *cdev);
255 
256 /**
257  * qed_arfs_mode_configure(): Enable or disable rfs mode.
258  *                            It must accept at least one of tcp or udp true
259  *                            and at least one of ipv4 or ipv6 true to enable
260  *                            rfs mode.
261  *
262  * @p_hwfn: HW device data.
263  * @p_ptt: P_ptt.
264  * @p_cfg_params: arfs mode configuration parameters.
265  *
266  * Return. Void.
267  */
268 void qed_arfs_mode_configure(struct qed_hwfn *p_hwfn,
269 			     struct qed_ptt *p_ptt,
270 			     struct qed_arfs_config_params *p_cfg_params);
271 
272 /**
273  * qed_configure_rfs_ntuple_filter(): This ramrod should be used to add
274  *                                     or remove arfs hw filter
275  *
276  * @p_hwfn: HW device data.
277  * @p_cb: Used for QED_SPQ_MODE_CB,where client would initialize
278  *        it with cookie and callback function address, if not
279  *        using this mode then client must pass NULL.
280  * @p_params: Pointer to params.
281  *
282  * Return: Void.
283  */
284 int
285 qed_configure_rfs_ntuple_filter(struct qed_hwfn *p_hwfn,
286 				struct qed_spq_comp_cb *p_cb,
287 				struct qed_ntuple_filter_params *p_params);
288 
289 #define MAX_QUEUES_PER_QZONE    (sizeof(unsigned long) * 8)
290 #define QED_QUEUE_CID_SELF	(0xff)
291 
292 /* Almost identical to the qed_queue_start_common_params,
293  * but here we maintain the SB index in IGU CAM.
294  */
295 struct qed_queue_cid_params {
296 	u8 vport_id;
297 	u16 queue_id;
298 	u8 stats_id;
299 };
300 
301 /* Additional parameters required for initialization of the queue_cid
302  * and are relevant only for a PF initializing one for its VFs.
303  */
304 struct qed_queue_cid_vf_params {
305 	/* Should match the VF's relative index */
306 	u8 vfid;
307 
308 	/* 0-based queue index. Should reflect the relative qzone the
309 	 * VF thinks is associated with it [in its range].
310 	 */
311 	u8 vf_qid;
312 
313 	/* Indicates a VF is legacy, making it differ in several things:
314 	 *  - Producers would be placed in a different place.
315 	 *  - Makes assumptions regarding the CIDs.
316 	 */
317 	u8 vf_legacy;
318 
319 	u8 qid_usage_idx;
320 };
321 
322 struct qed_queue_cid {
323 	/* For stats-id, the `rel' is actually absolute as well */
324 	struct qed_queue_cid_params rel;
325 	struct qed_queue_cid_params abs;
326 
327 	/* These have no 'relative' meaning */
328 	u16 sb_igu_id;
329 	u8 sb_idx;
330 
331 	u32 cid;
332 	u16 opaque_fid;
333 
334 	bool b_is_rx;
335 
336 	/* VFs queues are mapped differently, so we need to know the
337 	 * relative queue associated with them [0-based].
338 	 * Notice this is relevant on the *PF* queue-cid of its VF's queues,
339 	 * and not on the VF itself.
340 	 */
341 	u8 vfid;
342 	u8 vf_qid;
343 
344 	/* We need an additional index to differentiate between queues opened
345 	 * for same queue-zone, as VFs would have to communicate the info
346 	 * to the PF [otherwise PF has no way to differentiate].
347 	 */
348 	u8 qid_usage_idx;
349 
350 	u8 vf_legacy;
351 #define QED_QCID_LEGACY_VF_RX_PROD	(BIT(0))
352 #define QED_QCID_LEGACY_VF_CID		(BIT(1))
353 
354 	struct qed_hwfn *p_owner;
355 };
356 
357 int qed_l2_alloc(struct qed_hwfn *p_hwfn);
358 void qed_l2_setup(struct qed_hwfn *p_hwfn);
359 void qed_l2_free(struct qed_hwfn *p_hwfn);
360 
361 void qed_eth_queue_cid_release(struct qed_hwfn *p_hwfn,
362 			       struct qed_queue_cid *p_cid);
363 
364 struct qed_queue_cid *
365 qed_eth_queue_to_cid(struct qed_hwfn *p_hwfn,
366 		     u16 opaque_fid,
367 		     struct qed_queue_start_common_params *p_params,
368 		     bool b_is_rx,
369 		     struct qed_queue_cid_vf_params *p_vf_params);
370 
371 int
372 qed_sp_eth_vport_start(struct qed_hwfn *p_hwfn,
373 		       struct qed_sp_vport_start_params *p_params);
374 
375 /**
376  * qed_eth_rxq_start_ramrod(): Starts an Rx queue, when queue_cid is
377  *                             already prepared
378  *
379  * @p_hwfn: HW device data.
380  * @p_cid: Pointer CID.
381  * @bd_max_bytes: Max bytes.
382  * @bd_chain_phys_addr: Chain physcial address.
383  * @cqe_pbl_addr: PBL address.
384  * @cqe_pbl_size: PBL size.
385  *
386  * Return: Int.
387  */
388 int
389 qed_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  * qed_eth_txq_start_ramrod(): Starts a Tx queue, where queue_cid is
397  *                             already prepared
398  *
399  * @p_hwfn: HW device data.
400  * @p_cid: Pointer CID.
401  * @pbl_addr: PBL address.
402  * @pbl_size: PBL size.
403  * @pq_id: Parameters for choosing the PQ for this Tx queue.
404  *
405  * Return: Int.
406  */
407 int
408 qed_eth_txq_start_ramrod(struct qed_hwfn *p_hwfn,
409 			 struct qed_queue_cid *p_cid,
410 			 dma_addr_t pbl_addr, u16 pbl_size, u16 pq_id);
411 
412 u8 qed_mcast_bin_from_mac(u8 *mac);
413 
414 int qed_set_rxq_coalesce(struct qed_hwfn *p_hwfn,
415 			 struct qed_ptt *p_ptt,
416 			 u16 coalesce, struct qed_queue_cid *p_cid);
417 
418 int qed_set_txq_coalesce(struct qed_hwfn *p_hwfn,
419 			 struct qed_ptt *p_ptt,
420 			 u16 coalesce, struct qed_queue_cid *p_cid);
421 
422 int qed_get_rxq_coalesce(struct qed_hwfn *p_hwfn,
423 			 struct qed_ptt *p_ptt,
424 			 struct qed_queue_cid *p_cid, u16 *p_hw_coal);
425 
426 int qed_get_txq_coalesce(struct qed_hwfn *p_hwfn,
427 			 struct qed_ptt *p_ptt,
428 			 struct qed_queue_cid *p_cid, u16 *p_hw_coal);
429 
430 #endif
431