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
54 #define HNAE3_DEV_SUPPORT_FD_B 0x6
55 #define HNAE3_DEV_SUPPORT_GRO_B 0x7
57 #define HNAE3_DEV_SUPPORT_ROCE_DCB_BITS (BIT(HNAE3_DEV_SUPPORT_DCB_B) |\
58 BIT(HNAE3_DEV_SUPPORT_ROCE_B))
60 #define hnae3_dev_roce_supported(hdev) \
61 hnae3_get_bit(hdev->ae_dev->flag, HNAE3_DEV_SUPPORT_ROCE_B)
63 #define hnae3_dev_dcb_supported(hdev) \
64 hnae3_get_bit(hdev->ae_dev->flag, HNAE3_DEV_SUPPORT_DCB_B)
66 #define hnae3_dev_fd_supported(hdev) \
67 hnae3_get_bit((hdev)->ae_dev->flag, HNAE3_DEV_SUPPORT_FD_B)
69 #define hnae3_dev_gro_supported(hdev) \
70 hnae3_get_bit((hdev)->ae_dev->flag, HNAE3_DEV_SUPPORT_GRO_B)
72 #define ring_ptr_move_fw(ring, p) \
73 ((ring)->p = ((ring)->p + 1) % (ring)->desc_num)
74 #define ring_ptr_move_bw(ring, p) \
75 ((ring)->p = ((ring)->p - 1 + (ring)->desc_num) % (ring)->desc_num)
85 void __iomem *io_base;
86 struct hnae3_ae_algo *ae_algo;
87 struct hnae3_handle *handle;
88 int tqp_index; /* index in a handle */
89 u32 buf_size; /* size for hnae_desc->addr, preset by AE */
90 u16 tx_desc_num;/* total number of tx desc */
91 u16 rx_desc_num;/* total number of rx desc */
97 HNAE3_LOOP_SERIAL_SERDES,
98 HNAE3_LOOP_PARALLEL_SERDES,
103 enum hnae3_client_type {
109 enum hnae3_dev_type {
115 enum hnae3_media_type {
116 HNAE3_MEDIA_TYPE_UNKNOWN,
117 HNAE3_MEDIA_TYPE_FIBER,
118 HNAE3_MEDIA_TYPE_COPPER,
119 HNAE3_MEDIA_TYPE_BACKPLANE,
120 HNAE3_MEDIA_TYPE_NONE,
123 enum hnae3_reset_notify_type {
128 HNAE3_RESTORE_CLIENT,
131 enum hnae3_reset_type {
134 HNAE3_VF_PF_FUNC_RESET,
145 enum hnae3_flr_state {
150 enum hnae3_port_base_vlan_state {
151 HNAE3_PORT_BASE_VLAN_DISABLE,
152 HNAE3_PORT_BASE_VLAN_ENABLE,
153 HNAE3_PORT_BASE_VLAN_MODIFY,
154 HNAE3_PORT_BASE_VLAN_NOCHANGE,
157 struct hnae3_vector_info {
162 #define HNAE3_RING_TYPE_B 0
163 #define HNAE3_RING_TYPE_TX 0
164 #define HNAE3_RING_TYPE_RX 1
165 #define HNAE3_RING_GL_IDX_S 0
166 #define HNAE3_RING_GL_IDX_M GENMASK(1, 0)
167 #define HNAE3_RING_GL_RX 0
168 #define HNAE3_RING_GL_TX 1
170 struct hnae3_ring_chain_node {
171 struct hnae3_ring_chain_node *next;
177 #define HNAE3_IS_TX_RING(node) \
178 (((node)->flag & (1 << HNAE3_RING_TYPE_B)) == HNAE3_RING_TYPE_TX)
180 struct hnae3_client_ops {
181 int (*init_instance)(struct hnae3_handle *handle);
182 void (*uninit_instance)(struct hnae3_handle *handle, bool reset);
183 void (*link_status_change)(struct hnae3_handle *handle, bool state);
184 int (*setup_tc)(struct hnae3_handle *handle, u8 tc);
185 int (*reset_notify)(struct hnae3_handle *handle,
186 enum hnae3_reset_notify_type type);
187 enum hnae3_reset_type (*process_hw_error)(struct hnae3_handle *handle);
190 #define HNAE3_CLIENT_NAME_LENGTH 16
191 struct hnae3_client {
192 char name[HNAE3_CLIENT_NAME_LENGTH];
194 enum hnae3_client_type type;
195 const struct hnae3_client_ops *ops;
196 struct list_head node;
199 struct hnae3_ae_dev {
200 struct pci_dev *pdev;
201 const struct hnae3_ae_ops *ops;
202 struct list_head node;
204 u8 override_pci_need_reset; /* fix to stop multiple reset happening */
205 enum hnae3_dev_type dev_type;
206 enum hnae3_reset_type reset_type;
210 /* This struct defines the operation on the handle.
212 * init_ae_dev(): (mandatory)
213 * Get PF configure from pci_dev and initialize PF hardware
215 * Disable PF device and release PF resource
217 * Register client to ae_dev
218 * unregister_client()
219 * Unregister client from ae_dev
221 * Enable the hardware
223 * Disable the hardware
225 * Inform the hclge that client has been started
227 * Inform the hclge that client has been stopped
229 * Get the carrier state of the back channel of the handle, 1 for ok, 0 for
231 * get_ksettings_an_result()
232 * Get negotiation status,speed and duplex
233 * update_speed_duplex_h()
234 * Update hardware speed and duplex
236 * Get media type of MAC
246 * get tx and rx of pause frame use
248 * set tx and rx of pause frame use
250 * set auto autonegotiation of pause frame use
252 * get auto autonegotiation of pause frame use
253 * get_coalesce_usecs()
254 * get usecs to delay a TX interrupt after a packet is sent
255 * get_rx_max_coalesced_frames()
256 * get Maximum number of packets to be sent before a TX interrupt.
257 * set_coalesce_usecs()
258 * set usecs to delay a TX interrupt after a packet is sent
259 * set_coalesce_frames()
260 * set Maximum number of packets to be sent before a TX interrupt.
266 * Add unicast addr to mac table
268 * Remove unicast addr from mac table
270 * Set multicast address
272 * Add multicast address to mac table
274 * Remove multicast address from mac table
276 * Update Old network device statistics
277 * get_ethtool_stats()
278 * Get ethtool network device statistics
280 * Get a set of strings that describe the requested objects
282 * Get number of strings that @get_strings will write
283 * update_led_status()
284 * Update the led status
290 * Get the len of the regs dump
293 * get_rss_indir_size()
294 * Get rss indirection table size
300 * Get tc size of handle
302 * Get vector number and vector information
304 * Put the vector in hdev
305 * map_ring_to_vector()
306 * Map rings to vector
307 * unmap_ring_from_vector()
308 * Unmap rings from vector
312 * Get firmware version
314 * Get media typr of phy
315 * enable_vlan_filter()
318 * Set vlan filter config of Ports
319 * set_vf_vlan_filter()
320 * Set vlan filter config of vf
321 * enable_hw_strip_rxvtag()
322 * Enable/disable hardware strip vlan tag of packets received
324 * Enable/disable HW GRO
326 struct hnae3_ae_ops {
327 int (*init_ae_dev)(struct hnae3_ae_dev *ae_dev);
328 void (*uninit_ae_dev)(struct hnae3_ae_dev *ae_dev);
329 void (*flr_prepare)(struct hnae3_ae_dev *ae_dev);
330 void (*flr_done)(struct hnae3_ae_dev *ae_dev);
331 int (*init_client_instance)(struct hnae3_client *client,
332 struct hnae3_ae_dev *ae_dev);
333 void (*uninit_client_instance)(struct hnae3_client *client,
334 struct hnae3_ae_dev *ae_dev);
335 int (*start)(struct hnae3_handle *handle);
336 void (*stop)(struct hnae3_handle *handle);
337 int (*client_start)(struct hnae3_handle *handle);
338 void (*client_stop)(struct hnae3_handle *handle);
339 int (*get_status)(struct hnae3_handle *handle);
340 void (*get_ksettings_an_result)(struct hnae3_handle *handle,
341 u8 *auto_neg, u32 *speed, u8 *duplex);
343 int (*update_speed_duplex_h)(struct hnae3_handle *handle);
344 int (*cfg_mac_speed_dup_h)(struct hnae3_handle *handle, int speed,
347 void (*get_media_type)(struct hnae3_handle *handle, u8 *media_type);
348 void (*adjust_link)(struct hnae3_handle *handle, int speed, int duplex);
349 int (*set_loopback)(struct hnae3_handle *handle,
350 enum hnae3_loop loop_mode, bool en);
352 int (*set_promisc_mode)(struct hnae3_handle *handle, bool en_uc_pmc,
354 int (*set_mtu)(struct hnae3_handle *handle, int new_mtu);
356 void (*get_pauseparam)(struct hnae3_handle *handle,
357 u32 *auto_neg, u32 *rx_en, u32 *tx_en);
358 int (*set_pauseparam)(struct hnae3_handle *handle,
359 u32 auto_neg, u32 rx_en, u32 tx_en);
361 int (*set_autoneg)(struct hnae3_handle *handle, bool enable);
362 int (*get_autoneg)(struct hnae3_handle *handle);
364 void (*get_coalesce_usecs)(struct hnae3_handle *handle,
365 u32 *tx_usecs, u32 *rx_usecs);
366 void (*get_rx_max_coalesced_frames)(struct hnae3_handle *handle,
367 u32 *tx_frames, u32 *rx_frames);
368 int (*set_coalesce_usecs)(struct hnae3_handle *handle, u32 timeout);
369 int (*set_coalesce_frames)(struct hnae3_handle *handle,
370 u32 coalesce_frames);
371 void (*get_coalesce_range)(struct hnae3_handle *handle,
372 u32 *tx_frames_low, u32 *rx_frames_low,
373 u32 *tx_frames_high, u32 *rx_frames_high,
374 u32 *tx_usecs_low, u32 *rx_usecs_low,
375 u32 *tx_usecs_high, u32 *rx_usecs_high);
377 void (*get_mac_addr)(struct hnae3_handle *handle, u8 *p);
378 int (*set_mac_addr)(struct hnae3_handle *handle, void *p,
380 int (*do_ioctl)(struct hnae3_handle *handle,
381 struct ifreq *ifr, int cmd);
382 int (*add_uc_addr)(struct hnae3_handle *handle,
383 const unsigned char *addr);
384 int (*rm_uc_addr)(struct hnae3_handle *handle,
385 const unsigned char *addr);
386 int (*set_mc_addr)(struct hnae3_handle *handle, void *addr);
387 int (*add_mc_addr)(struct hnae3_handle *handle,
388 const unsigned char *addr);
389 int (*rm_mc_addr)(struct hnae3_handle *handle,
390 const unsigned char *addr);
391 void (*set_tso_stats)(struct hnae3_handle *handle, int enable);
392 void (*update_stats)(struct hnae3_handle *handle,
393 struct net_device_stats *net_stats);
394 void (*get_stats)(struct hnae3_handle *handle, u64 *data);
395 void (*get_mac_pause_stats)(struct hnae3_handle *handle, u64 *tx_cnt,
397 void (*get_strings)(struct hnae3_handle *handle,
398 u32 stringset, u8 *data);
399 int (*get_sset_count)(struct hnae3_handle *handle, int stringset);
401 void (*get_regs)(struct hnae3_handle *handle, u32 *version,
403 int (*get_regs_len)(struct hnae3_handle *handle);
405 u32 (*get_rss_key_size)(struct hnae3_handle *handle);
406 u32 (*get_rss_indir_size)(struct hnae3_handle *handle);
407 int (*get_rss)(struct hnae3_handle *handle, u32 *indir, u8 *key,
409 int (*set_rss)(struct hnae3_handle *handle, const u32 *indir,
410 const u8 *key, const u8 hfunc);
411 int (*set_rss_tuple)(struct hnae3_handle *handle,
412 struct ethtool_rxnfc *cmd);
413 int (*get_rss_tuple)(struct hnae3_handle *handle,
414 struct ethtool_rxnfc *cmd);
416 int (*get_tc_size)(struct hnae3_handle *handle);
418 int (*get_vector)(struct hnae3_handle *handle, u16 vector_num,
419 struct hnae3_vector_info *vector_info);
420 int (*put_vector)(struct hnae3_handle *handle, int vector_num);
421 int (*map_ring_to_vector)(struct hnae3_handle *handle,
423 struct hnae3_ring_chain_node *vr_chain);
424 int (*unmap_ring_from_vector)(struct hnae3_handle *handle,
426 struct hnae3_ring_chain_node *vr_chain);
428 int (*reset_queue)(struct hnae3_handle *handle, u16 queue_id);
429 u32 (*get_fw_version)(struct hnae3_handle *handle);
430 void (*get_mdix_mode)(struct hnae3_handle *handle,
431 u8 *tp_mdix_ctrl, u8 *tp_mdix);
433 void (*enable_vlan_filter)(struct hnae3_handle *handle, bool enable);
434 int (*set_vlan_filter)(struct hnae3_handle *handle, __be16 proto,
435 u16 vlan_id, bool is_kill);
436 int (*set_vf_vlan_filter)(struct hnae3_handle *handle, int vfid,
437 u16 vlan, u8 qos, __be16 proto);
438 int (*enable_hw_strip_rxvtag)(struct hnae3_handle *handle, bool enable);
439 void (*reset_event)(struct pci_dev *pdev, struct hnae3_handle *handle);
440 void (*set_default_reset_request)(struct hnae3_ae_dev *ae_dev,
441 enum hnae3_reset_type rst_type);
442 void (*get_channels)(struct hnae3_handle *handle,
443 struct ethtool_channels *ch);
444 void (*get_tqps_and_rss_info)(struct hnae3_handle *h,
445 u16 *alloc_tqps, u16 *max_rss_size);
446 int (*set_channels)(struct hnae3_handle *handle, u32 new_tqps_num,
447 bool rxfh_configured);
448 void (*get_flowctrl_adv)(struct hnae3_handle *handle,
450 int (*set_led_id)(struct hnae3_handle *handle,
451 enum ethtool_phys_id_state status);
452 void (*get_link_mode)(struct hnae3_handle *handle,
453 unsigned long *supported,
454 unsigned long *advertising);
455 int (*add_fd_entry)(struct hnae3_handle *handle,
456 struct ethtool_rxnfc *cmd);
457 int (*del_fd_entry)(struct hnae3_handle *handle,
458 struct ethtool_rxnfc *cmd);
459 void (*del_all_fd_entries)(struct hnae3_handle *handle,
461 int (*get_fd_rule_cnt)(struct hnae3_handle *handle,
462 struct ethtool_rxnfc *cmd);
463 int (*get_fd_rule_info)(struct hnae3_handle *handle,
464 struct ethtool_rxnfc *cmd);
465 int (*get_fd_all_rules)(struct hnae3_handle *handle,
466 struct ethtool_rxnfc *cmd, u32 *rule_locs);
467 int (*restore_fd_rules)(struct hnae3_handle *handle);
468 void (*enable_fd)(struct hnae3_handle *handle, bool enable);
469 int (*dbg_run_cmd)(struct hnae3_handle *handle, char *cmd_buf);
470 pci_ers_result_t (*handle_hw_ras_error)(struct hnae3_ae_dev *ae_dev);
471 bool (*get_hw_reset_stat)(struct hnae3_handle *handle);
472 bool (*ae_dev_resetting)(struct hnae3_handle *handle);
473 unsigned long (*ae_dev_reset_cnt)(struct hnae3_handle *handle);
474 int (*set_gro_en)(struct hnae3_handle *handle, bool enable);
475 u16 (*get_global_queue_id)(struct hnae3_handle *handle, u16 queue_id);
476 void (*set_timer_task)(struct hnae3_handle *handle, bool enable);
477 int (*mac_connect_phy)(struct hnae3_handle *handle);
478 void (*mac_disconnect_phy)(struct hnae3_handle *handle);
481 struct hnae3_dcb_ops {
482 /* IEEE 802.1Qaz std */
483 int (*ieee_getets)(struct hnae3_handle *, struct ieee_ets *);
484 int (*ieee_setets)(struct hnae3_handle *, struct ieee_ets *);
485 int (*ieee_getpfc)(struct hnae3_handle *, struct ieee_pfc *);
486 int (*ieee_setpfc)(struct hnae3_handle *, struct ieee_pfc *);
488 /* DCBX configuration */
489 u8 (*getdcbx)(struct hnae3_handle *);
490 u8 (*setdcbx)(struct hnae3_handle *, u8);
492 int (*setup_tc)(struct hnae3_handle *, u8, u8 *);
495 struct hnae3_ae_algo {
496 const struct hnae3_ae_ops *ops;
497 struct list_head node;
498 const struct pci_device_id *pdev_id_table;
501 #define HNAE3_INT_NAME_LEN (IFNAMSIZ + 16)
502 #define HNAE3_ITR_COUNTDOWN_START 100
504 struct hnae3_tc_info {
505 u16 tqp_offset; /* TQP offset from base TQP */
506 u16 tqp_count; /* Total TQPs */
507 u8 tc; /* TC index */
508 bool enable; /* If this TC is enable or not */
511 #define HNAE3_MAX_TC 8
512 #define HNAE3_MAX_USER_PRIO 8
513 struct hnae3_knic_private_info {
514 struct net_device *netdev; /* Set by KNIC client when init instance */
515 u16 rss_size; /* Allocated RSS queues */
521 u8 num_tc; /* Total number of enabled TCs */
522 u8 prio_tc[HNAE3_MAX_USER_PRIO]; /* TC indexed by prio */
523 struct hnae3_tc_info tc_info[HNAE3_MAX_TC]; /* Idx of array is HW TC */
525 u16 num_tqps; /* total number of TQPs in this handle */
526 struct hnae3_queue **tqp; /* array base of all TQPs in this instance */
527 const struct hnae3_dcb_ops *dcb_ops;
530 enum pkt_hash_types rss_type;
533 struct hnae3_roce_private_info {
534 struct net_device *netdev;
535 void __iomem *roce_io_base;
539 /* The below attributes defined for RoCE client, hnae3 gives
540 * initial values to them, and RoCE client can modify and use
543 unsigned long reset_state;
544 unsigned long instance_state;
548 struct hnae3_unic_private_info {
549 struct net_device *netdev;
554 u16 num_tqps; /* total number of tqps in this handle */
555 struct hnae3_queue **tqp; /* array base of all TQPs of this instance */
558 #define HNAE3_SUPPORT_APP_LOOPBACK BIT(0)
559 #define HNAE3_SUPPORT_PHY_LOOPBACK BIT(1)
560 #define HNAE3_SUPPORT_SERDES_SERIAL_LOOPBACK BIT(2)
561 #define HNAE3_SUPPORT_VF BIT(3)
562 #define HNAE3_SUPPORT_SERDES_PARALLEL_LOOPBACK BIT(4)
564 #define HNAE3_USER_UPE BIT(0) /* unicast promisc enabled by user */
565 #define HNAE3_USER_MPE BIT(1) /* mulitcast promisc enabled by user */
566 #define HNAE3_BPE BIT(2) /* broadcast promisc enable */
567 #define HNAE3_OVERFLOW_UPE BIT(3) /* unicast mac vlan overflow */
568 #define HNAE3_OVERFLOW_MPE BIT(4) /* multicast mac vlan overflow */
569 #define HNAE3_VLAN_FLTR BIT(5) /* enable vlan filter */
570 #define HNAE3_UPE (HNAE3_USER_UPE | HNAE3_OVERFLOW_UPE)
571 #define HNAE3_MPE (HNAE3_USER_MPE | HNAE3_OVERFLOW_MPE)
573 struct hnae3_handle {
574 struct hnae3_client *client;
575 struct pci_dev *pdev;
577 struct hnae3_ae_algo *ae_algo; /* the class who provides this handle */
578 u64 flags; /* Indicate the capabilities for this handle*/
581 struct net_device *netdev; /* first member */
582 struct hnae3_knic_private_info kinfo;
583 struct hnae3_unic_private_info uinfo;
584 struct hnae3_roce_private_info rinfo;
587 u32 numa_node_mask; /* for multi-chip support */
589 enum hnae3_port_base_vlan_state port_base_vlan_state;
592 struct dentry *hnae3_dbgfs;
594 /* Network interface message level enabled bits */
598 #define hnae3_set_field(origin, mask, shift, val) \
600 (origin) &= (~(mask)); \
601 (origin) |= ((val) << (shift)) & (mask); \
603 #define hnae3_get_field(origin, mask, shift) (((origin) & (mask)) >> (shift))
605 #define hnae3_set_bit(origin, shift, val) \
606 hnae3_set_field((origin), (0x1 << (shift)), (shift), (val))
607 #define hnae3_get_bit(origin, shift) \
608 hnae3_get_field((origin), (0x1 << (shift)), (shift))
610 int hnae3_register_ae_dev(struct hnae3_ae_dev *ae_dev);
611 void hnae3_unregister_ae_dev(struct hnae3_ae_dev *ae_dev);
613 void hnae3_unregister_ae_algo(struct hnae3_ae_algo *ae_algo);
614 void hnae3_register_ae_algo(struct hnae3_ae_algo *ae_algo);
616 void hnae3_unregister_client(struct hnae3_client *client);
617 int hnae3_register_client(struct hnae3_client *client);
619 void hnae3_set_client_init_flag(struct hnae3_client *client,
620 struct hnae3_ae_dev *ae_dev, int inited);