1 // SPDX-License-Identifier: GPL-2.0+
2 // Copyright (c) 2016-2017 Hisilicon Limited.
7 /* Names used in this framework:
9 * a set of queues provided by AE
10 * ring buffer queue (rbq):
11 * the channel between upper layer and the AE, can do tx and rx
13 * a tx or rx channel within a rbq
14 * ring description (desc):
15 * an element in the ring with packet information
17 * a memory region referred by desc with the full packet payload
19 * "num" means a static number set as a parameter, "count" mean a dynamic
20 * number set while running
21 * "cb" means control block
24 #include <linux/acpi.h>
25 #include <linux/dcbnl.h>
26 #include <linux/delay.h>
27 #include <linux/device.h>
28 #include <linux/module.h>
29 #include <linux/netdevice.h>
30 #include <linux/pci.h>
31 #include <linux/types.h>
33 #define HNAE3_MOD_VERSION "1.0"
36 #define HNAE3_DEV_ID_GE 0xA220
37 #define HNAE3_DEV_ID_25GE 0xA221
38 #define HNAE3_DEV_ID_25GE_RDMA 0xA222
39 #define HNAE3_DEV_ID_25GE_RDMA_MACSEC 0xA223
40 #define HNAE3_DEV_ID_50GE_RDMA 0xA224
41 #define HNAE3_DEV_ID_50GE_RDMA_MACSEC 0xA225
42 #define HNAE3_DEV_ID_100G_RDMA_MACSEC 0xA226
43 #define HNAE3_DEV_ID_100G_VF 0xA22E
44 #define HNAE3_DEV_ID_100G_RDMA_DCB_PFC_VF 0xA22F
46 #define HNAE3_CLASS_NAME_SIZE 16
48 #define HNAE3_DEV_INITED_B 0x0
49 #define HNAE3_DEV_SUPPORT_ROCE_B 0x1
50 #define HNAE3_DEV_SUPPORT_DCB_B 0x2
51 #define HNAE3_KNIC_CLIENT_INITED_B 0x3
52 #define HNAE3_UNIC_CLIENT_INITED_B 0x4
53 #define HNAE3_ROCE_CLIENT_INITED_B 0x5
55 #define HNAE3_DEV_SUPPORT_ROCE_DCB_BITS (BIT(HNAE3_DEV_SUPPORT_DCB_B) |\
56 BIT(HNAE3_DEV_SUPPORT_ROCE_B))
58 #define hnae3_dev_roce_supported(hdev) \
59 hnae3_get_bit(hdev->ae_dev->flag, HNAE3_DEV_SUPPORT_ROCE_B)
61 #define hnae3_dev_dcb_supported(hdev) \
62 hnae3_get_bit(hdev->ae_dev->flag, HNAE3_DEV_SUPPORT_DCB_B)
64 #define ring_ptr_move_fw(ring, p) \
65 ((ring)->p = ((ring)->p + 1) % (ring)->desc_num)
66 #define ring_ptr_move_bw(ring, p) \
67 ((ring)->p = ((ring)->p - 1 + (ring)->desc_num) % (ring)->desc_num)
77 void __iomem *io_base;
78 struct hnae3_ae_algo *ae_algo;
79 struct hnae3_handle *handle;
80 int tqp_index; /* index in a handle */
81 u32 buf_size; /* size for hnae_desc->addr, preset by AE */
82 u16 desc_num; /* total number of desc */
93 enum hnae3_client_type {
105 enum hnae3_media_type {
106 HNAE3_MEDIA_TYPE_UNKNOWN,
107 HNAE3_MEDIA_TYPE_FIBER,
108 HNAE3_MEDIA_TYPE_COPPER,
109 HNAE3_MEDIA_TYPE_BACKPLANE,
110 HNAE3_MEDIA_TYPE_NONE,
113 enum hnae3_reset_notify_type {
120 enum hnae3_reset_type {
130 struct hnae3_vector_info {
135 #define HNAE3_RING_TYPE_B 0
136 #define HNAE3_RING_TYPE_TX 0
137 #define HNAE3_RING_TYPE_RX 1
138 #define HNAE3_RING_GL_IDX_S 0
139 #define HNAE3_RING_GL_IDX_M GENMASK(1, 0)
140 #define HNAE3_RING_GL_RX 0
141 #define HNAE3_RING_GL_TX 1
143 struct hnae3_ring_chain_node {
144 struct hnae3_ring_chain_node *next;
150 #define HNAE3_IS_TX_RING(node) \
151 (((node)->flag & (1 << HNAE3_RING_TYPE_B)) == HNAE3_RING_TYPE_TX)
153 struct hnae3_client_ops {
154 int (*init_instance)(struct hnae3_handle *handle);
155 void (*uninit_instance)(struct hnae3_handle *handle, bool reset);
156 void (*link_status_change)(struct hnae3_handle *handle, bool state);
157 int (*setup_tc)(struct hnae3_handle *handle, u8 tc);
158 int (*reset_notify)(struct hnae3_handle *handle,
159 enum hnae3_reset_notify_type type);
162 #define HNAE3_CLIENT_NAME_LENGTH 16
163 struct hnae3_client {
164 char name[HNAE3_CLIENT_NAME_LENGTH];
166 enum hnae3_client_type type;
167 const struct hnae3_client_ops *ops;
168 struct list_head node;
171 struct hnae3_ae_dev {
172 struct pci_dev *pdev;
173 const struct hnae3_ae_ops *ops;
174 struct list_head node;
176 enum hnae3_dev_type dev_type;
180 /* This struct defines the operation on the handle.
182 * init_ae_dev(): (mandatory)
183 * Get PF configure from pci_dev and initialize PF hardware
185 * Disable PF device and release PF resource
187 * Register client to ae_dev
188 * unregister_client()
189 * Unregister client from ae_dev
191 * Enable the hardware
193 * Disable the hardware
195 * Get the carrier state of the back channel of the handle, 1 for ok, 0 for
197 * get_ksettings_an_result()
198 * Get negotiation status,speed and duplex
199 * update_speed_duplex_h()
200 * Update hardware speed and duplex
202 * Get media type of MAC
212 * get tx and rx of pause frame use
214 * set tx and rx of pause frame use
216 * set auto autonegotiation of pause frame use
218 * get auto autonegotiation of pause frame use
219 * get_coalesce_usecs()
220 * get usecs to delay a TX interrupt after a packet is sent
221 * get_rx_max_coalesced_frames()
222 * get Maximum number of packets to be sent before a TX interrupt.
223 * set_coalesce_usecs()
224 * set usecs to delay a TX interrupt after a packet is sent
225 * set_coalesce_frames()
226 * set Maximum number of packets to be sent before a TX interrupt.
232 * Add unicast addr to mac table
234 * Remove unicast addr from mac table
236 * Set multicast address
238 * Add multicast address to mac table
240 * Remove multicast address from mac table
242 * Update Old network device statistics
243 * get_ethtool_stats()
244 * Get ethtool network device statistics
246 * Get a set of strings that describe the requested objects
248 * Get number of strings that @get_strings will write
249 * update_led_status()
250 * Update the led status
256 * Get the len of the regs dump
259 * get_rss_indir_size()
260 * Get rss indirection table size
266 * Get tc size of handle
268 * Get vector number and vector information
270 * Put the vector in hdev
271 * map_ring_to_vector()
272 * Map rings to vector
273 * unmap_ring_from_vector()
274 * Unmap rings from vector
278 * Get firmware version
280 * Get media typr of phy
281 * enable_vlan_filter()
284 * Set vlan filter config of Ports
285 * set_vf_vlan_filter()
286 * Set vlan filter config of vf
287 * enable_hw_strip_rxvtag()
288 * Enable/disable hardware strip vlan tag of packets received
290 struct hnae3_ae_ops {
291 int (*init_ae_dev)(struct hnae3_ae_dev *ae_dev);
292 void (*uninit_ae_dev)(struct hnae3_ae_dev *ae_dev);
294 int (*init_client_instance)(struct hnae3_client *client,
295 struct hnae3_ae_dev *ae_dev);
296 void (*uninit_client_instance)(struct hnae3_client *client,
297 struct hnae3_ae_dev *ae_dev);
298 int (*start)(struct hnae3_handle *handle);
299 void (*stop)(struct hnae3_handle *handle);
300 int (*get_status)(struct hnae3_handle *handle);
301 void (*get_ksettings_an_result)(struct hnae3_handle *handle,
302 u8 *auto_neg, u32 *speed, u8 *duplex);
304 int (*update_speed_duplex_h)(struct hnae3_handle *handle);
305 int (*cfg_mac_speed_dup_h)(struct hnae3_handle *handle, int speed,
308 void (*get_media_type)(struct hnae3_handle *handle, u8 *media_type);
309 void (*adjust_link)(struct hnae3_handle *handle, int speed, int duplex);
310 int (*set_loopback)(struct hnae3_handle *handle,
311 enum hnae3_loop loop_mode, bool en);
313 void (*set_promisc_mode)(struct hnae3_handle *handle, bool en_uc_pmc,
315 int (*set_mtu)(struct hnae3_handle *handle, int new_mtu);
317 void (*get_pauseparam)(struct hnae3_handle *handle,
318 u32 *auto_neg, u32 *rx_en, u32 *tx_en);
319 int (*set_pauseparam)(struct hnae3_handle *handle,
320 u32 auto_neg, u32 rx_en, u32 tx_en);
322 int (*set_autoneg)(struct hnae3_handle *handle, bool enable);
323 int (*get_autoneg)(struct hnae3_handle *handle);
325 void (*get_coalesce_usecs)(struct hnae3_handle *handle,
326 u32 *tx_usecs, u32 *rx_usecs);
327 void (*get_rx_max_coalesced_frames)(struct hnae3_handle *handle,
328 u32 *tx_frames, u32 *rx_frames);
329 int (*set_coalesce_usecs)(struct hnae3_handle *handle, u32 timeout);
330 int (*set_coalesce_frames)(struct hnae3_handle *handle,
331 u32 coalesce_frames);
332 void (*get_coalesce_range)(struct hnae3_handle *handle,
333 u32 *tx_frames_low, u32 *rx_frames_low,
334 u32 *tx_frames_high, u32 *rx_frames_high,
335 u32 *tx_usecs_low, u32 *rx_usecs_low,
336 u32 *tx_usecs_high, u32 *rx_usecs_high);
338 void (*get_mac_addr)(struct hnae3_handle *handle, u8 *p);
339 int (*set_mac_addr)(struct hnae3_handle *handle, void *p,
341 int (*do_ioctl)(struct hnae3_handle *handle,
342 struct ifreq *ifr, int cmd);
343 int (*add_uc_addr)(struct hnae3_handle *handle,
344 const unsigned char *addr);
345 int (*rm_uc_addr)(struct hnae3_handle *handle,
346 const unsigned char *addr);
347 int (*set_mc_addr)(struct hnae3_handle *handle, void *addr);
348 int (*add_mc_addr)(struct hnae3_handle *handle,
349 const unsigned char *addr);
350 int (*rm_mc_addr)(struct hnae3_handle *handle,
351 const unsigned char *addr);
352 int (*update_mta_status)(struct hnae3_handle *handle);
354 void (*set_tso_stats)(struct hnae3_handle *handle, int enable);
355 void (*update_stats)(struct hnae3_handle *handle,
356 struct net_device_stats *net_stats);
357 void (*get_stats)(struct hnae3_handle *handle, u64 *data);
359 void (*get_strings)(struct hnae3_handle *handle,
360 u32 stringset, u8 *data);
361 int (*get_sset_count)(struct hnae3_handle *handle, int stringset);
363 void (*get_regs)(struct hnae3_handle *handle, u32 *version,
365 int (*get_regs_len)(struct hnae3_handle *handle);
367 u32 (*get_rss_key_size)(struct hnae3_handle *handle);
368 u32 (*get_rss_indir_size)(struct hnae3_handle *handle);
369 int (*get_rss)(struct hnae3_handle *handle, u32 *indir, u8 *key,
371 int (*set_rss)(struct hnae3_handle *handle, const u32 *indir,
372 const u8 *key, const u8 hfunc);
373 int (*set_rss_tuple)(struct hnae3_handle *handle,
374 struct ethtool_rxnfc *cmd);
375 int (*get_rss_tuple)(struct hnae3_handle *handle,
376 struct ethtool_rxnfc *cmd);
378 int (*get_tc_size)(struct hnae3_handle *handle);
380 int (*get_vector)(struct hnae3_handle *handle, u16 vector_num,
381 struct hnae3_vector_info *vector_info);
382 int (*put_vector)(struct hnae3_handle *handle, int vector_num);
383 int (*map_ring_to_vector)(struct hnae3_handle *handle,
385 struct hnae3_ring_chain_node *vr_chain);
386 int (*unmap_ring_from_vector)(struct hnae3_handle *handle,
388 struct hnae3_ring_chain_node *vr_chain);
390 void (*reset_queue)(struct hnae3_handle *handle, u16 queue_id);
391 u32 (*get_fw_version)(struct hnae3_handle *handle);
392 void (*get_mdix_mode)(struct hnae3_handle *handle,
393 u8 *tp_mdix_ctrl, u8 *tp_mdix);
395 void (*enable_vlan_filter)(struct hnae3_handle *handle, bool enable);
396 int (*set_vlan_filter)(struct hnae3_handle *handle, __be16 proto,
397 u16 vlan_id, bool is_kill);
398 int (*set_vf_vlan_filter)(struct hnae3_handle *handle, int vfid,
399 u16 vlan, u8 qos, __be16 proto);
400 int (*enable_hw_strip_rxvtag)(struct hnae3_handle *handle, bool enable);
401 void (*reset_event)(struct hnae3_handle *handle);
402 void (*get_channels)(struct hnae3_handle *handle,
403 struct ethtool_channels *ch);
404 void (*get_tqps_and_rss_info)(struct hnae3_handle *h,
405 u16 *free_tqps, u16 *max_rss_size);
406 int (*set_channels)(struct hnae3_handle *handle, u32 new_tqps_num);
407 void (*get_flowctrl_adv)(struct hnae3_handle *handle,
409 int (*set_led_id)(struct hnae3_handle *handle,
410 enum ethtool_phys_id_state status);
411 void (*get_link_mode)(struct hnae3_handle *handle,
412 unsigned long *supported,
413 unsigned long *advertising);
416 struct hnae3_dcb_ops {
417 /* IEEE 802.1Qaz std */
418 int (*ieee_getets)(struct hnae3_handle *, struct ieee_ets *);
419 int (*ieee_setets)(struct hnae3_handle *, struct ieee_ets *);
420 int (*ieee_getpfc)(struct hnae3_handle *, struct ieee_pfc *);
421 int (*ieee_setpfc)(struct hnae3_handle *, struct ieee_pfc *);
423 /* DCBX configuration */
424 u8 (*getdcbx)(struct hnae3_handle *);
425 u8 (*setdcbx)(struct hnae3_handle *, u8);
427 int (*map_update)(struct hnae3_handle *);
428 int (*setup_tc)(struct hnae3_handle *, u8, u8 *);
431 struct hnae3_ae_algo {
432 const struct hnae3_ae_ops *ops;
433 struct list_head node;
434 const struct pci_device_id *pdev_id_table;
437 #define HNAE3_INT_NAME_LEN (IFNAMSIZ + 16)
438 #define HNAE3_ITR_COUNTDOWN_START 100
440 struct hnae3_tc_info {
441 u16 tqp_offset; /* TQP offset from base TQP */
442 u16 tqp_count; /* Total TQPs */
443 u8 tc; /* TC index */
444 bool enable; /* If this TC is enable or not */
447 #define HNAE3_MAX_TC 8
448 #define HNAE3_MAX_USER_PRIO 8
449 struct hnae3_knic_private_info {
450 struct net_device *netdev; /* Set by KNIC client when init instance */
451 u16 rss_size; /* Allocated RSS queues */
455 u8 num_tc; /* Total number of enabled TCs */
456 u8 prio_tc[HNAE3_MAX_USER_PRIO]; /* TC indexed by prio */
457 struct hnae3_tc_info tc_info[HNAE3_MAX_TC]; /* Idx of array is HW TC */
459 u16 num_tqps; /* total number of TQPs in this handle */
460 struct hnae3_queue **tqp; /* array base of all TQPs in this instance */
461 const struct hnae3_dcb_ops *dcb_ops;
466 struct hnae3_roce_private_info {
467 struct net_device *netdev;
468 void __iomem *roce_io_base;
473 struct hnae3_unic_private_info {
474 struct net_device *netdev;
477 u16 num_tqps; /* total number of tqps in this handle */
478 struct hnae3_queue **tqp; /* array base of all TQPs of this instance */
481 #define HNAE3_SUPPORT_MAC_LOOPBACK BIT(0)
482 #define HNAE3_SUPPORT_PHY_LOOPBACK BIT(1)
483 #define HNAE3_SUPPORT_SERDES_LOOPBACK BIT(2)
484 #define HNAE3_SUPPORT_VF BIT(3)
486 struct hnae3_handle {
487 struct hnae3_client *client;
488 struct pci_dev *pdev;
490 struct hnae3_ae_algo *ae_algo; /* the class who provides this handle */
491 u64 flags; /* Indicate the capabilities for this handle*/
493 unsigned long last_reset_time;
494 enum hnae3_reset_type reset_level;
497 struct net_device *netdev; /* first member */
498 struct hnae3_knic_private_info kinfo;
499 struct hnae3_unic_private_info uinfo;
500 struct hnae3_roce_private_info rinfo;
503 u32 numa_node_mask; /* for multi-chip support */
506 #define hnae3_set_field(origin, mask, shift, val) \
508 (origin) &= (~(mask)); \
509 (origin) |= ((val) << (shift)) & (mask); \
511 #define hnae3_get_field(origin, mask, shift) (((origin) & (mask)) >> (shift))
513 #define hnae3_set_bit(origin, shift, val) \
514 hnae3_set_field((origin), (0x1 << (shift)), (shift), (val))
515 #define hnae3_get_bit(origin, shift) \
516 hnae3_get_field((origin), (0x1 << (shift)), (shift))
518 void hnae3_register_ae_dev(struct hnae3_ae_dev *ae_dev);
519 void hnae3_unregister_ae_dev(struct hnae3_ae_dev *ae_dev);
521 void hnae3_unregister_ae_algo(struct hnae3_ae_algo *ae_algo);
522 void hnae3_register_ae_algo(struct hnae3_ae_algo *ae_algo);
524 void hnae3_unregister_client(struct hnae3_client *client);
525 int hnae3_register_client(struct hnae3_client *client);
527 void hnae3_set_client_init_flag(struct hnae3_client *client,
528 struct hnae3_ae_dev *ae_dev, int inited);