1 /* QLogic qed NIC Driver
2  * Copyright (c) 2015-2017  QLogic Corporation
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 
33 #ifndef _QED_ETH_IF_H
34 #define _QED_ETH_IF_H
35 
36 #include <linux/list.h>
37 #include <linux/if_link.h>
38 #include <linux/qed/eth_common.h>
39 #include <linux/qed/qed_if.h>
40 #include <linux/qed/qed_iov_if.h>
41 
42 /* 64 max queues * (1 rx + 4 tx-cos + 1 xdp) */
43 #define QED_MIN_L2_CONS (2 + NUM_PHYS_TCS_4PORT_K2)
44 #define QED_MAX_L2_CONS (64 * (QED_MIN_L2_CONS))
45 
46 struct qed_queue_start_common_params {
47 	/* Should always be relative to entity sending this. */
48 	u8 vport_id;
49 	u16 queue_id;
50 
51 	/* Relative, but relevant only for PFs */
52 	u8 stats_id;
53 
54 	struct qed_sb_info *p_sb;
55 	u8 sb_idx;
56 
57 	u8 tc;
58 };
59 
60 struct qed_rxq_start_ret_params {
61 	void __iomem *p_prod;
62 	void *p_handle;
63 };
64 
65 struct qed_txq_start_ret_params {
66 	void __iomem *p_doorbell;
67 	void *p_handle;
68 };
69 
70 enum qed_filter_config_mode {
71 	QED_FILTER_CONFIG_MODE_DISABLE,
72 	QED_FILTER_CONFIG_MODE_5_TUPLE,
73 	QED_FILTER_CONFIG_MODE_L4_PORT,
74 	QED_FILTER_CONFIG_MODE_IP_DEST,
75 	QED_FILTER_CONFIG_MODE_IP_SRC,
76 };
77 
78 struct qed_ntuple_filter_params {
79 	/* Physically mapped address containing header of buffer to be used
80 	 * as filter.
81 	 */
82 	dma_addr_t addr;
83 
84 	/* Length of header in bytes */
85 	u16 length;
86 
87 	/* Relative queue-id to receive classified packet */
88 #define QED_RFS_NTUPLE_QID_RSS ((u16)-1)
89 	u16 qid;
90 
91 	/* Identifier can either be according to vport-id or vfid */
92 	bool b_is_vf;
93 	u8 vport_id;
94 	u8 vf_id;
95 
96 	/* true iff this filter is to be added. Else to be removed */
97 	bool b_is_add;
98 
99 	/* If flow needs to be dropped */
100 	bool b_is_drop;
101 };
102 
103 struct qed_dev_eth_info {
104 	struct qed_dev_info common;
105 
106 	u8	num_queues;
107 	u8	num_tc;
108 
109 	u8	port_mac[ETH_ALEN];
110 	u16	num_vlan_filters;
111 	u16	num_mac_filters;
112 
113 	/* Legacy VF - this affects the datapath, so qede has to know */
114 	bool is_legacy;
115 
116 	/* Might depend on available resources [in case of VF] */
117 	bool xdp_supported;
118 };
119 
120 struct qed_update_vport_rss_params {
121 	void	*rss_ind_table[128];
122 	u32	rss_key[10];
123 	u8	rss_caps;
124 };
125 
126 struct qed_update_vport_params {
127 	u8 vport_id;
128 	u8 update_vport_active_flg;
129 	u8 vport_active_flg;
130 	u8 update_tx_switching_flg;
131 	u8 tx_switching_flg;
132 	u8 update_accept_any_vlan_flg;
133 	u8 accept_any_vlan;
134 	u8 update_rss_flg;
135 	struct qed_update_vport_rss_params rss_params;
136 };
137 
138 struct qed_start_vport_params {
139 	bool remove_inner_vlan;
140 	bool handle_ptp_pkts;
141 	bool gro_enable;
142 	bool drop_ttl0;
143 	u8 vport_id;
144 	u16 mtu;
145 	bool clear_stats;
146 };
147 
148 enum qed_filter_rx_mode_type {
149 	QED_FILTER_RX_MODE_TYPE_REGULAR,
150 	QED_FILTER_RX_MODE_TYPE_MULTI_PROMISC,
151 	QED_FILTER_RX_MODE_TYPE_PROMISC,
152 };
153 
154 enum qed_filter_xcast_params_type {
155 	QED_FILTER_XCAST_TYPE_ADD,
156 	QED_FILTER_XCAST_TYPE_DEL,
157 	QED_FILTER_XCAST_TYPE_REPLACE,
158 };
159 
160 struct qed_filter_ucast_params {
161 	enum qed_filter_xcast_params_type type;
162 	u8 vlan_valid;
163 	u16 vlan;
164 	u8 mac_valid;
165 	unsigned char mac[ETH_ALEN];
166 };
167 
168 struct qed_filter_mcast_params {
169 	enum qed_filter_xcast_params_type type;
170 	u8 num;
171 	unsigned char mac[64][ETH_ALEN];
172 };
173 
174 union qed_filter_type_params {
175 	enum qed_filter_rx_mode_type accept_flags;
176 	struct qed_filter_ucast_params ucast;
177 	struct qed_filter_mcast_params mcast;
178 };
179 
180 enum qed_filter_type {
181 	QED_FILTER_TYPE_UCAST,
182 	QED_FILTER_TYPE_MCAST,
183 	QED_FILTER_TYPE_RX_MODE,
184 	QED_MAX_FILTER_TYPES,
185 };
186 
187 struct qed_filter_params {
188 	enum qed_filter_type type;
189 	union qed_filter_type_params filter;
190 };
191 
192 struct qed_tunn_params {
193 	u16 vxlan_port;
194 	u8 update_vxlan_port;
195 	u16 geneve_port;
196 	u8 update_geneve_port;
197 };
198 
199 struct qed_eth_cb_ops {
200 	struct qed_common_cb_ops common;
201 	void (*force_mac) (void *dev, u8 *mac, bool forced);
202 	void (*ports_update)(void *dev, u16 vxlan_port, u16 geneve_port);
203 };
204 
205 #define QED_MAX_PHC_DRIFT_PPB   291666666
206 
207 enum qed_ptp_filter_type {
208 	QED_PTP_FILTER_NONE,
209 	QED_PTP_FILTER_ALL,
210 	QED_PTP_FILTER_V1_L4_EVENT,
211 	QED_PTP_FILTER_V1_L4_GEN,
212 	QED_PTP_FILTER_V2_L4_EVENT,
213 	QED_PTP_FILTER_V2_L4_GEN,
214 	QED_PTP_FILTER_V2_L2_EVENT,
215 	QED_PTP_FILTER_V2_L2_GEN,
216 	QED_PTP_FILTER_V2_EVENT,
217 	QED_PTP_FILTER_V2_GEN
218 };
219 
220 enum qed_ptp_hwtstamp_tx_type {
221 	QED_PTP_HWTSTAMP_TX_OFF,
222 	QED_PTP_HWTSTAMP_TX_ON,
223 };
224 
225 #ifdef CONFIG_DCB
226 /* Prototype declaration of qed_eth_dcbnl_ops should match with the declaration
227  * of dcbnl_rtnl_ops structure.
228  */
229 struct qed_eth_dcbnl_ops {
230 	/* IEEE 802.1Qaz std */
231 	int (*ieee_getpfc)(struct qed_dev *cdev, struct ieee_pfc *pfc);
232 	int (*ieee_setpfc)(struct qed_dev *cdev, struct ieee_pfc *pfc);
233 	int (*ieee_getets)(struct qed_dev *cdev, struct ieee_ets *ets);
234 	int (*ieee_setets)(struct qed_dev *cdev, struct ieee_ets *ets);
235 	int (*ieee_peer_getets)(struct qed_dev *cdev, struct ieee_ets *ets);
236 	int (*ieee_peer_getpfc)(struct qed_dev *cdev, struct ieee_pfc *pfc);
237 	int (*ieee_getapp)(struct qed_dev *cdev, struct dcb_app *app);
238 	int (*ieee_setapp)(struct qed_dev *cdev, struct dcb_app *app);
239 
240 	/* CEE std */
241 	u8 (*getstate)(struct qed_dev *cdev);
242 	u8 (*setstate)(struct qed_dev *cdev, u8 state);
243 	void (*getpgtccfgtx)(struct qed_dev *cdev, int prio, u8 *prio_type,
244 			     u8 *pgid, u8 *bw_pct, u8 *up_map);
245 	void (*getpgbwgcfgtx)(struct qed_dev *cdev, int pgid, u8 *bw_pct);
246 	void (*getpgtccfgrx)(struct qed_dev *cdev, int prio, u8 *prio_type,
247 			     u8 *pgid, u8 *bw_pct, u8 *up_map);
248 	void (*getpgbwgcfgrx)(struct qed_dev *cdev, int pgid, u8 *bw_pct);
249 	void (*getpfccfg)(struct qed_dev *cdev, int prio, u8 *setting);
250 	void (*setpfccfg)(struct qed_dev *cdev, int prio, u8 setting);
251 	u8 (*getcap)(struct qed_dev *cdev, int capid, u8 *cap);
252 	int (*getnumtcs)(struct qed_dev *cdev, int tcid, u8 *num);
253 	u8 (*getpfcstate)(struct qed_dev *cdev);
254 	int (*getapp)(struct qed_dev *cdev, u8 idtype, u16 id);
255 	u8 (*getfeatcfg)(struct qed_dev *cdev, int featid, u8 *flags);
256 
257 	/* DCBX configuration */
258 	u8 (*getdcbx)(struct qed_dev *cdev);
259 	void (*setpgtccfgtx)(struct qed_dev *cdev, int prio,
260 			     u8 pri_type, u8 pgid, u8 bw_pct, u8 up_map);
261 	void (*setpgtccfgrx)(struct qed_dev *cdev, int prio,
262 			     u8 pri_type, u8 pgid, u8 bw_pct, u8 up_map);
263 	void (*setpgbwgcfgtx)(struct qed_dev *cdev, int pgid, u8 bw_pct);
264 	void (*setpgbwgcfgrx)(struct qed_dev *cdev, int pgid, u8 bw_pct);
265 	u8 (*setall)(struct qed_dev *cdev);
266 	int (*setnumtcs)(struct qed_dev *cdev, int tcid, u8 num);
267 	void (*setpfcstate)(struct qed_dev *cdev, u8 state);
268 	int (*setapp)(struct qed_dev *cdev, u8 idtype, u16 idval, u8 up);
269 	u8 (*setdcbx)(struct qed_dev *cdev, u8 state);
270 	u8 (*setfeatcfg)(struct qed_dev *cdev, int featid, u8 flags);
271 
272 	/* Peer apps */
273 	int (*peer_getappinfo)(struct qed_dev *cdev,
274 			       struct dcb_peer_app_info *info,
275 			       u16 *app_count);
276 	int (*peer_getapptable)(struct qed_dev *cdev, struct dcb_app *table);
277 
278 	/* CEE peer */
279 	int (*cee_peer_getpfc)(struct qed_dev *cdev, struct cee_pfc *pfc);
280 	int (*cee_peer_getpg)(struct qed_dev *cdev, struct cee_pg *pg);
281 };
282 #endif
283 
284 struct qed_eth_ptp_ops {
285 	int (*cfg_filters)(struct qed_dev *, enum qed_ptp_filter_type,
286 			   enum qed_ptp_hwtstamp_tx_type);
287 	int (*read_rx_ts)(struct qed_dev *, u64 *);
288 	int (*read_tx_ts)(struct qed_dev *, u64 *);
289 	int (*read_cc)(struct qed_dev *, u64 *);
290 	int (*disable)(struct qed_dev *);
291 	int (*adjfreq)(struct qed_dev *, s32);
292 	int (*enable)(struct qed_dev *);
293 };
294 
295 struct qed_eth_ops {
296 	const struct qed_common_ops *common;
297 #ifdef CONFIG_QED_SRIOV
298 	const struct qed_iov_hv_ops *iov;
299 #endif
300 #ifdef CONFIG_DCB
301 	const struct qed_eth_dcbnl_ops *dcb;
302 #endif
303 	const struct qed_eth_ptp_ops *ptp;
304 
305 	int (*fill_dev_info)(struct qed_dev *cdev,
306 			     struct qed_dev_eth_info *info);
307 
308 	void (*register_ops)(struct qed_dev *cdev,
309 			     struct qed_eth_cb_ops *ops,
310 			     void *cookie);
311 
312 	 bool(*check_mac) (struct qed_dev *cdev, u8 *mac);
313 
314 	int (*vport_start)(struct qed_dev *cdev,
315 			   struct qed_start_vport_params *params);
316 
317 	int (*vport_stop)(struct qed_dev *cdev,
318 			  u8 vport_id);
319 
320 	int (*vport_update)(struct qed_dev *cdev,
321 			    struct qed_update_vport_params *params);
322 
323 	int (*q_rx_start)(struct qed_dev *cdev,
324 			  u8 rss_num,
325 			  struct qed_queue_start_common_params *params,
326 			  u16 bd_max_bytes,
327 			  dma_addr_t bd_chain_phys_addr,
328 			  dma_addr_t cqe_pbl_addr,
329 			  u16 cqe_pbl_size,
330 			  struct qed_rxq_start_ret_params *ret_params);
331 
332 	int (*q_rx_stop)(struct qed_dev *cdev, u8 rss_id, void *handle);
333 
334 	int (*q_tx_start)(struct qed_dev *cdev,
335 			  u8 rss_num,
336 			  struct qed_queue_start_common_params *params,
337 			  dma_addr_t pbl_addr,
338 			  u16 pbl_size,
339 			  struct qed_txq_start_ret_params *ret_params);
340 
341 	int (*q_tx_stop)(struct qed_dev *cdev, u8 rss_id, void *handle);
342 
343 	int (*filter_config)(struct qed_dev *cdev,
344 			     struct qed_filter_params *params);
345 
346 	int (*fastpath_stop)(struct qed_dev *cdev);
347 
348 	int (*eth_cqe_completion)(struct qed_dev *cdev,
349 				  u8 rss_id,
350 				  struct eth_slow_path_rx_cqe *cqe);
351 
352 	void (*get_vport_stats)(struct qed_dev *cdev,
353 				struct qed_eth_stats *stats);
354 
355 	int (*tunn_config)(struct qed_dev *cdev,
356 			   struct qed_tunn_params *params);
357 
358 	int (*ntuple_filter_config)(struct qed_dev *cdev,
359 				    void *cookie,
360 				    struct qed_ntuple_filter_params *params);
361 
362 	int (*configure_arfs_searcher)(struct qed_dev *cdev,
363 				       enum qed_filter_config_mode mode);
364 	int (*get_coalesce)(struct qed_dev *cdev, u16 *coal, void *handle);
365 	int (*req_bulletin_update_mac)(struct qed_dev *cdev, u8 *mac);
366 };
367 
368 const struct qed_eth_ops *qed_get_eth_ops(void);
369 void qed_put_eth_ops(void);
370 
371 #endif
372