2 * Copyright (c) 2015-2016, Mellanox Technologies. All rights reserved.
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:
10 * Redistribution and use in source and binary forms, with or
11 * without modification, are permitted provided that the following
14 * - Redistributions of source code must retain the above
15 * copyright notice, this list of conditions and the following
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.
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
35 #include <linux/if_vlan.h>
36 #include <linux/etherdevice.h>
37 #include <linux/timecounter.h>
38 #include <linux/net_tstamp.h>
39 #include <linux/ptp_clock_kernel.h>
40 #include <linux/mlx5/driver.h>
41 #include <linux/mlx5/qp.h>
42 #include <linux/mlx5/cq.h>
43 #include <linux/mlx5/port.h>
44 #include <linux/mlx5/vport.h>
45 #include <linux/mlx5/transobj.h>
47 #include "mlx5_core.h"
49 #define MLX5E_MAX_NUM_TC 8
51 #define MLX5E_PARAMS_MINIMUM_LOG_SQ_SIZE 0x6
52 #define MLX5E_PARAMS_DEFAULT_LOG_SQ_SIZE 0xa
53 #define MLX5E_PARAMS_MAXIMUM_LOG_SQ_SIZE 0xd
55 #define MLX5E_PARAMS_MINIMUM_LOG_RQ_SIZE 0x1
56 #define MLX5E_PARAMS_DEFAULT_LOG_RQ_SIZE 0xa
57 #define MLX5E_PARAMS_MAXIMUM_LOG_RQ_SIZE 0xd
59 #define MLX5E_PARAMS_DEFAULT_LRO_WQE_SZ (64 * 1024)
60 #define MLX5E_PARAMS_DEFAULT_RX_CQ_MODERATION_USEC 0x10
61 #define MLX5E_PARAMS_DEFAULT_RX_CQ_MODERATION_PKTS 0x20
62 #define MLX5E_PARAMS_DEFAULT_TX_CQ_MODERATION_USEC 0x10
63 #define MLX5E_PARAMS_DEFAULT_TX_CQ_MODERATION_PKTS 0x20
64 #define MLX5E_PARAMS_DEFAULT_MIN_RX_WQES 0x80
66 #define MLX5E_LOG_INDIR_RQT_SIZE 0x7
67 #define MLX5E_INDIR_RQT_SIZE BIT(MLX5E_LOG_INDIR_RQT_SIZE)
68 #define MLX5E_MAX_NUM_CHANNELS (MLX5E_INDIR_RQT_SIZE >> 1)
69 #define MLX5E_TX_CQ_POLL_BUDGET 128
70 #define MLX5E_UPDATE_STATS_INTERVAL 200 /* msecs */
71 #define MLX5E_SQ_BF_BUDGET 16
73 #define MLX5E_NUM_MAIN_GROUPS 9
75 #ifdef CONFIG_MLX5_CORE_EN_DCB
76 #define MLX5E_MAX_BW_ALLOC 100 /* Max percentage of BW allocation */
77 #define MLX5E_MIN_BW_ALLOC 1 /* Min percentage of BW allocation */
80 static const char vport_strings[][ETH_GSTRING_LEN] = {
81 /* vport statistics */
94 "rx_multicast_packets",
96 "tx_multicast_packets",
98 "rx_broadcast_packets",
100 "tx_broadcast_packets",
101 "tx_broadcast_bytes",
118 struct mlx5e_vport_stats {
124 u64 rx_error_packets;
126 u64 tx_error_packets;
128 u64 rx_unicast_packets;
129 u64 rx_unicast_bytes;
130 u64 tx_unicast_packets;
131 u64 tx_unicast_bytes;
132 u64 rx_multicast_packets;
133 u64 rx_multicast_bytes;
134 u64 tx_multicast_packets;
135 u64 tx_multicast_bytes;
136 u64 rx_broadcast_packets;
137 u64 rx_broadcast_bytes;
138 u64 tx_broadcast_packets;
139 u64 tx_broadcast_bytes;
150 u64 tx_queue_stopped;
152 u64 tx_queue_dropped;
155 #define NUM_VPORT_COUNTERS 32
158 static const char pport_strings[][ETH_GSTRING_LEN] = {
159 /* IEEE802.3 counters */
170 "in_range_len_errors",
180 /* RFC2863 counters */
192 "out_multicast_pkts",
193 "out_broadcast_pkts",
195 /* RFC2819 counters */
216 "p8192to10239octets",
219 #define NUM_IEEE_802_3_COUNTERS 19
220 #define NUM_RFC_2863_COUNTERS 13
221 #define NUM_RFC_2819_COUNTERS 21
222 #define NUM_PPORT_COUNTERS (NUM_IEEE_802_3_COUNTERS + \
223 NUM_RFC_2863_COUNTERS + \
224 NUM_RFC_2819_COUNTERS)
226 struct mlx5e_pport_stats {
227 __be64 IEEE_802_3_counters[NUM_IEEE_802_3_COUNTERS];
228 __be64 RFC_2863_counters[NUM_RFC_2863_COUNTERS];
229 __be64 RFC_2819_counters[NUM_RFC_2819_COUNTERS];
232 static const char rq_stats_strings[][ETH_GSTRING_LEN] = {
241 struct mlx5e_rq_stats {
248 #define NUM_RQ_STATS 6
251 static const char sq_stats_strings[][ETH_GSTRING_LEN] = {
262 struct mlx5e_sq_stats {
266 u64 csum_offload_none;
271 #define NUM_SQ_STATS 8
275 struct mlx5e_vport_stats vport;
276 struct mlx5e_pport_stats pport;
279 struct mlx5e_params {
284 u16 rx_cq_moderation_usec;
285 u16 rx_cq_moderation_pkts;
286 u16 tx_cq_moderation_usec;
287 u16 tx_cq_moderation_pkts;
293 u8 toeplitz_hash_key[40];
294 u32 indirection_rqt[MLX5E_INDIR_RQT_SIZE];
295 #ifdef CONFIG_MLX5_CORE_EN_DCB
300 struct mlx5e_tstamp {
302 struct cyclecounter cycles;
303 struct timecounter clock;
304 struct hwtstamp_config hwtstamp_config;
306 unsigned long overflow_period;
307 struct delayed_work overflow_work;
308 struct mlx5_core_dev *mdev;
309 struct ptp_clock *ptp;
310 struct ptp_clock_info ptp_info;
314 MLX5E_RQ_STATE_POST_WQES_ENABLE,
318 MLX5E_CQ_HAS_CQES = 1,
322 /* data path - accessed per cqe */
326 /* data path - accessed per napi poll */
327 struct napi_struct *napi;
328 struct mlx5_core_cq mcq;
329 struct mlx5e_channel *channel;
330 struct mlx5e_priv *priv;
333 struct mlx5_wq_ctrl wq_ctrl;
334 } ____cacheline_aligned_in_smp;
338 struct mlx5_wq_ll wq;
340 struct sk_buff **skb;
343 struct net_device *netdev;
344 struct mlx5e_tstamp *tstamp;
345 struct mlx5e_rq_stats stats;
352 struct mlx5_wq_ctrl wq_ctrl;
354 struct mlx5e_channel *channel;
355 struct mlx5e_priv *priv;
356 } ____cacheline_aligned_in_smp;
358 struct mlx5e_tx_wqe_info {
364 enum mlx5e_dma_map_type {
365 MLX5E_DMA_MAP_SINGLE,
369 struct mlx5e_sq_dma {
372 enum mlx5e_dma_map_type type;
376 MLX5E_SQ_STATE_WAKE_TXQ_ENABLE,
382 /* dirtied @completion */
387 u16 pc ____cacheline_aligned_in_smp;
392 struct mlx5e_sq_stats stats;
396 /* pointers to per packet info: write@xmit, read@completion */
397 struct sk_buff **skb;
398 struct mlx5e_sq_dma *dma_fifo;
399 struct mlx5e_tx_wqe_info *wqe_info;
402 struct mlx5_wq_cyc wq;
404 void __iomem *uar_map;
405 void __iomem *uar_bf_map;
406 struct netdev_queue *txq;
412 struct mlx5e_tstamp *tstamp;
417 struct mlx5_wq_ctrl wq_ctrl;
419 struct mlx5e_channel *channel;
421 } ____cacheline_aligned_in_smp;
423 static inline bool mlx5e_sq_has_room_for(struct mlx5e_sq *sq, u16 n)
425 return (((sq->wq.sz_m1 & (sq->cc - sq->pc)) >= n) ||
430 MLX5E_CHANNEL_NAPI_SCHED = 1,
433 struct mlx5e_channel {
436 struct mlx5e_sq sq[MLX5E_MAX_NUM_TC];
437 struct napi_struct napi;
439 struct net_device *netdev;
445 struct mlx5e_priv *priv;
450 enum mlx5e_traffic_types {
455 MLX5E_TT_IPV4_IPSEC_AH,
456 MLX5E_TT_IPV6_IPSEC_AH,
457 MLX5E_TT_IPV4_IPSEC_ESP,
458 MLX5E_TT_IPV6_IPSEC_ESP,
466 MLX5E_INDIRECTION_RQT,
471 struct mlx5e_eth_addr_info {
472 u8 addr[ETH_ALEN + 2];
474 struct mlx5_flow_rule *ft_rule[MLX5E_NUM_TT];
477 #define MLX5E_ETH_ADDR_HASH_SIZE (1 << BITS_PER_BYTE)
479 struct mlx5e_eth_addr_db {
480 struct hlist_head netdev_uc[MLX5E_ETH_ADDR_HASH_SIZE];
481 struct hlist_head netdev_mc[MLX5E_ETH_ADDR_HASH_SIZE];
482 struct mlx5e_eth_addr_info broadcast;
483 struct mlx5e_eth_addr_info allmulti;
484 struct mlx5e_eth_addr_info promisc;
485 bool broadcast_enabled;
486 bool allmulti_enabled;
487 bool promisc_enabled;
491 MLX5E_STATE_ASYNC_EVENTS_ENABLE,
493 MLX5E_STATE_DESTROYING,
496 struct mlx5e_vlan_db {
497 unsigned long active_vlans[BITS_TO_LONGS(VLAN_N_VID)];
498 struct mlx5_flow_rule *active_vlans_rule[VLAN_N_VID];
499 struct mlx5_flow_rule *untagged_rule;
500 struct mlx5_flow_rule *any_vlan_rule;
501 bool filter_disabled;
504 struct mlx5e_vxlan_db {
505 spinlock_t lock; /* protect vxlan table */
506 struct radix_tree_root tree;
509 struct mlx5e_flow_table {
511 struct mlx5_flow_table *t;
512 struct mlx5_flow_group **g;
515 struct mlx5e_flow_tables {
516 struct mlx5_flow_namespace *ns;
517 struct mlx5e_flow_table vlan;
518 struct mlx5e_flow_table main;
522 /* priv data path fields - start */
523 struct mlx5e_sq **txq_to_sq_map;
524 int channeltc_to_txq_map[MLX5E_MAX_NUM_CHANNELS][MLX5E_MAX_NUM_TC];
525 /* priv data path fields - end */
528 struct mutex state_lock; /* Protects Interface state */
529 struct mlx5_uar cq_uar;
532 struct mlx5_core_mr mr;
533 struct mlx5e_rq drop_rq;
535 struct mlx5e_channel **channel;
536 u32 tisn[MLX5E_MAX_NUM_TC];
537 u32 rqtn[MLX5E_NUM_RQT];
538 u32 tirn[MLX5E_NUM_TT];
540 struct mlx5e_flow_tables fts;
541 struct mlx5e_eth_addr_db eth_addr;
542 struct mlx5e_vlan_db vlan;
543 struct mlx5e_vxlan_db vxlan;
545 struct mlx5e_params params;
546 spinlock_t async_events_spinlock; /* sync hw events */
547 struct work_struct update_carrier_work;
548 struct work_struct set_rx_mode_work;
549 struct delayed_work update_stats_work;
551 struct mlx5_core_dev *mdev;
552 struct net_device *netdev;
553 struct mlx5e_stats stats;
554 struct mlx5e_tstamp tstamp;
557 #define MLX5E_NET_IP_ALIGN 2
559 struct mlx5e_tx_wqe {
560 struct mlx5_wqe_ctrl_seg ctrl;
561 struct mlx5_wqe_eth_seg eth;
564 struct mlx5e_rx_wqe {
565 struct mlx5_wqe_srq_next_seg next;
566 struct mlx5_wqe_data_seg data;
569 enum mlx5e_link_mode {
570 MLX5E_1000BASE_CX_SGMII = 0,
571 MLX5E_1000BASE_KX = 1,
572 MLX5E_10GBASE_CX4 = 2,
573 MLX5E_10GBASE_KX4 = 3,
574 MLX5E_10GBASE_KR = 4,
575 MLX5E_20GBASE_KR2 = 5,
576 MLX5E_40GBASE_CR4 = 6,
577 MLX5E_40GBASE_KR4 = 7,
578 MLX5E_56GBASE_R4 = 8,
579 MLX5E_10GBASE_CR = 12,
580 MLX5E_10GBASE_SR = 13,
581 MLX5E_10GBASE_ER = 14,
582 MLX5E_40GBASE_SR4 = 15,
583 MLX5E_40GBASE_LR4 = 16,
584 MLX5E_100GBASE_CR4 = 20,
585 MLX5E_100GBASE_SR4 = 21,
586 MLX5E_100GBASE_KR4 = 22,
587 MLX5E_100GBASE_LR4 = 23,
588 MLX5E_100BASE_TX = 24,
589 MLX5E_100BASE_T = 25,
590 MLX5E_10GBASE_T = 26,
591 MLX5E_25GBASE_CR = 27,
592 MLX5E_25GBASE_KR = 28,
593 MLX5E_25GBASE_SR = 29,
594 MLX5E_50GBASE_CR2 = 30,
595 MLX5E_50GBASE_KR2 = 31,
596 MLX5E_LINK_MODES_NUMBER,
599 #define MLX5E_PROT_MASK(link_mode) (1 << link_mode)
601 void mlx5e_send_nop(struct mlx5e_sq *sq, bool notify_hw);
602 u16 mlx5e_select_queue(struct net_device *dev, struct sk_buff *skb,
603 void *accel_priv, select_queue_fallback_t fallback);
604 netdev_tx_t mlx5e_xmit(struct sk_buff *skb, struct net_device *dev);
606 void mlx5e_completion_event(struct mlx5_core_cq *mcq);
607 void mlx5e_cq_error_event(struct mlx5_core_cq *mcq, enum mlx5_event event);
608 int mlx5e_napi_poll(struct napi_struct *napi, int budget);
609 bool mlx5e_poll_tx_cq(struct mlx5e_cq *cq);
610 int mlx5e_poll_rx_cq(struct mlx5e_cq *cq, int budget);
611 bool mlx5e_post_rx_wqes(struct mlx5e_rq *rq);
612 struct mlx5_cqe64 *mlx5e_get_cqe(struct mlx5e_cq *cq);
614 void mlx5e_update_stats(struct mlx5e_priv *priv);
616 int mlx5e_create_flow_tables(struct mlx5e_priv *priv);
617 void mlx5e_destroy_flow_tables(struct mlx5e_priv *priv);
618 void mlx5e_init_eth_addr(struct mlx5e_priv *priv);
619 void mlx5e_set_rx_mode_work(struct work_struct *work);
621 void mlx5e_fill_hwstamp(struct mlx5e_tstamp *clock, u64 timestamp,
622 struct skb_shared_hwtstamps *hwts);
623 void mlx5e_timestamp_init(struct mlx5e_priv *priv);
624 void mlx5e_timestamp_cleanup(struct mlx5e_priv *priv);
625 int mlx5e_hwstamp_set(struct net_device *dev, struct ifreq *ifr);
626 int mlx5e_hwstamp_get(struct net_device *dev, struct ifreq *ifr);
628 int mlx5e_vlan_rx_add_vid(struct net_device *dev, __always_unused __be16 proto,
630 int mlx5e_vlan_rx_kill_vid(struct net_device *dev, __always_unused __be16 proto,
632 void mlx5e_enable_vlan_filter(struct mlx5e_priv *priv);
633 void mlx5e_disable_vlan_filter(struct mlx5e_priv *priv);
635 int mlx5e_redirect_rqt(struct mlx5e_priv *priv, enum mlx5e_rqt_ix rqt_ix);
637 int mlx5e_open_locked(struct net_device *netdev);
638 int mlx5e_close_locked(struct net_device *netdev);
640 static inline void mlx5e_tx_notify_hw(struct mlx5e_sq *sq,
641 struct mlx5e_tx_wqe *wqe, int bf_sz)
643 u16 ofst = MLX5_BF_OFFSET + sq->bf_offset;
645 /* ensure wqe is visible to device before updating doorbell record */
648 *sq->wq.db = cpu_to_be32(sq->pc);
650 /* ensure doorbell record is visible to device before ringing the
656 __iowrite64_copy(sq->uar_bf_map + ofst, &wqe->ctrl, bf_sz);
658 /* flush the write-combining mapped buffer */
662 mlx5_write64((__be32 *)&wqe->ctrl, sq->uar_map + ofst, NULL);
665 sq->bf_offset ^= sq->bf_buf_size;
668 static inline void mlx5e_cq_arm(struct mlx5e_cq *cq)
670 struct mlx5_core_cq *mcq;
673 mlx5_cq_arm(mcq, MLX5_CQ_DB_REQ_NOT, mcq->uar->map, NULL, cq->wq.cc);
676 static inline int mlx5e_get_max_num_channels(struct mlx5_core_dev *mdev)
678 return min_t(int, mdev->priv.eq_table.num_comp_vectors,
679 MLX5E_MAX_NUM_CHANNELS);
682 extern const struct ethtool_ops mlx5e_ethtool_ops;
683 #ifdef CONFIG_MLX5_CORE_EN_DCB
684 extern const struct dcbnl_rtnl_ops mlx5e_dcbnl_ops;
685 int mlx5e_dcbnl_ieee_setets_core(struct mlx5e_priv *priv, struct ieee_ets *ets);
688 u16 mlx5e_get_max_inline_cap(struct mlx5_core_dev *mdev);
690 #endif /* __MLX5_EN_H__ */