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
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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/crash_dump.h>
41 #include <linux/mlx5/driver.h>
42 #include <linux/mlx5/qp.h>
43 #include <linux/mlx5/cq.h>
44 #include <linux/mlx5/port.h>
45 #include <linux/mlx5/vport.h>
46 #include <linux/mlx5/transobj.h>
47 #include <linux/mlx5/fs.h>
48 #include <linux/rhashtable.h>
49 #include <net/switchdev.h>
51 #include <linux/net_dim.h>
53 #include "mlx5_core.h"
58 #define MLX5E_METADATA_ETHER_TYPE (0x8CE4)
59 #define MLX5E_METADATA_ETHER_LEN 8
61 #define MLX5_SET_CFG(p, f, v) MLX5_SET(create_flow_group_in, p, f, v)
63 #define MLX5E_ETH_HARD_MTU (ETH_HLEN + VLAN_HLEN + ETH_FCS_LEN)
65 #define MLX5E_HW2SW_MTU(params, hwmtu) ((hwmtu) - ((params)->hard_mtu))
66 #define MLX5E_SW2HW_MTU(params, swmtu) ((swmtu) + ((params)->hard_mtu))
68 #define MLX5E_MAX_PRIORITY 8
69 #define MLX5E_MAX_DSCP 64
70 #define MLX5E_MAX_NUM_TC 8
72 #define MLX5_RX_HEADROOM NET_SKB_PAD
73 #define MLX5_SKB_FRAG_SZ(len) (SKB_DATA_ALIGN(len) + \
74 SKB_DATA_ALIGN(sizeof(struct skb_shared_info)))
76 #define MLX5_MPWRQ_MIN_LOG_STRIDE_SZ(mdev) \
77 (6 + MLX5_CAP_GEN(mdev, cache_line_128byte)) /* HW restriction */
78 #define MLX5_MPWRQ_LOG_STRIDE_SZ(mdev, req) \
79 max_t(u32, MLX5_MPWRQ_MIN_LOG_STRIDE_SZ(mdev), req)
80 #define MLX5_MPWRQ_DEF_LOG_STRIDE_SZ(mdev) MLX5_MPWRQ_LOG_STRIDE_SZ(mdev, 6)
81 #define MLX5_MPWRQ_CQE_CMPRS_LOG_STRIDE_SZ(mdev) MLX5_MPWRQ_LOG_STRIDE_SZ(mdev, 8)
82 #define MLX5E_MPWQE_STRIDE_SZ(mdev, cqe_cmprs) \
83 (cqe_cmprs ? MLX5_MPWRQ_CQE_CMPRS_LOG_STRIDE_SZ(mdev) : \
84 MLX5_MPWRQ_DEF_LOG_STRIDE_SZ(mdev))
86 #define MLX5_MPWRQ_LOG_WQE_SZ 18
87 #define MLX5_MPWRQ_WQE_PAGE_ORDER (MLX5_MPWRQ_LOG_WQE_SZ - PAGE_SHIFT > 0 ? \
88 MLX5_MPWRQ_LOG_WQE_SZ - PAGE_SHIFT : 0)
89 #define MLX5_MPWRQ_PAGES_PER_WQE BIT(MLX5_MPWRQ_WQE_PAGE_ORDER)
91 #define MLX5_MTT_OCTW(npages) (ALIGN(npages, 8) / 2)
92 #define MLX5E_REQUIRED_WQE_MTTS (ALIGN(MLX5_MPWRQ_PAGES_PER_WQE, 8))
93 #define MLX5E_LOG_ALIGNED_MPWQE_PPW (ilog2(MLX5E_REQUIRED_WQE_MTTS))
94 #define MLX5E_REQUIRED_MTTS(wqes) (wqes * MLX5E_REQUIRED_WQE_MTTS)
95 #define MLX5E_MAX_RQ_NUM_MTTS \
96 ((1 << 16) * 2) /* So that MLX5_MTT_OCTW(num_mtts) fits into u16 */
97 #define MLX5E_ORDER2_MAX_PACKET_MTU (order_base_2(10 * 1024))
98 #define MLX5E_PARAMS_MAXIMUM_LOG_RQ_SIZE_MPW \
99 (ilog2(MLX5E_MAX_RQ_NUM_MTTS / MLX5E_REQUIRED_WQE_MTTS))
100 #define MLX5E_LOG_MAX_RQ_NUM_PACKETS_MPW \
101 (MLX5E_PARAMS_MAXIMUM_LOG_RQ_SIZE_MPW + \
102 (MLX5_MPWRQ_LOG_WQE_SZ - MLX5E_ORDER2_MAX_PACKET_MTU))
104 #define MLX5E_PARAMS_MINIMUM_LOG_SQ_SIZE 0x6
105 #define MLX5E_PARAMS_DEFAULT_LOG_SQ_SIZE 0xa
106 #define MLX5E_PARAMS_MAXIMUM_LOG_SQ_SIZE 0xd
108 #define MLX5E_PARAMS_MINIMUM_LOG_RQ_SIZE 0x1
109 #define MLX5E_PARAMS_DEFAULT_LOG_RQ_SIZE 0xa
110 #define MLX5E_PARAMS_MAXIMUM_LOG_RQ_SIZE min_t(u8, 0xd, \
111 MLX5E_LOG_MAX_RQ_NUM_PACKETS_MPW)
113 #define MLX5E_PARAMS_MINIMUM_LOG_RQ_SIZE_MPW 0x2
115 #define MLX5_MPWRQ_SMALL_PACKET_THRESHOLD (256)
117 #define MLX5E_PARAMS_DEFAULT_LRO_WQE_SZ (64 * 1024)
118 #define MLX5E_DEFAULT_LRO_TIMEOUT 32
119 #define MLX5E_LRO_TIMEOUT_ARR_SIZE 4
121 #define MLX5E_PARAMS_DEFAULT_RX_CQ_MODERATION_USEC 0x10
122 #define MLX5E_PARAMS_DEFAULT_RX_CQ_MODERATION_USEC_FROM_CQE 0x3
123 #define MLX5E_PARAMS_DEFAULT_RX_CQ_MODERATION_PKTS 0x20
124 #define MLX5E_PARAMS_DEFAULT_TX_CQ_MODERATION_USEC 0x10
125 #define MLX5E_PARAMS_DEFAULT_TX_CQ_MODERATION_USEC_FROM_CQE 0x10
126 #define MLX5E_PARAMS_DEFAULT_TX_CQ_MODERATION_PKTS 0x20
127 #define MLX5E_PARAMS_DEFAULT_MIN_RX_WQES 0x80
128 #define MLX5E_PARAMS_DEFAULT_MIN_RX_WQES_MPW 0x2
130 #define MLX5E_LOG_INDIR_RQT_SIZE 0x7
131 #define MLX5E_INDIR_RQT_SIZE BIT(MLX5E_LOG_INDIR_RQT_SIZE)
132 #define MLX5E_MIN_NUM_CHANNELS 0x1
133 #define MLX5E_MAX_NUM_CHANNELS (MLX5E_INDIR_RQT_SIZE >> 1)
134 #define MLX5E_MAX_NUM_SQS (MLX5E_MAX_NUM_CHANNELS * MLX5E_MAX_NUM_TC)
135 #define MLX5E_TX_CQ_POLL_BUDGET 128
136 #define MLX5E_UPDATE_STATS_INTERVAL 200 /* msecs */
137 #define MLX5E_SQ_RECOVER_MIN_INTERVAL 500 /* msecs */
139 #define MLX5E_UMR_WQE_INLINE_SZ \
140 (sizeof(struct mlx5e_umr_wqe) + \
141 ALIGN(MLX5_MPWRQ_PAGES_PER_WQE * sizeof(struct mlx5_mtt), \
142 MLX5_UMR_MTT_ALIGNMENT))
143 #define MLX5E_UMR_WQEBBS \
144 (DIV_ROUND_UP(MLX5E_UMR_WQE_INLINE_SZ, MLX5_SEND_WQE_BB))
145 #define MLX5E_ICOSQ_MAX_WQEBBS MLX5E_UMR_WQEBBS
147 #define MLX5E_XDP_MIN_INLINE (ETH_HLEN + VLAN_HLEN)
148 #define MLX5E_XDP_TX_DS_COUNT \
149 ((sizeof(struct mlx5e_tx_wqe) / MLX5_SEND_WQE_DS) + 1 /* SG DS */)
151 #define MLX5E_NUM_MAIN_GROUPS 9
153 #define MLX5E_MSG_LEVEL NETIF_MSG_LINK
155 #define mlx5e_dbg(mlevel, priv, format, ...) \
157 if (NETIF_MSG_##mlevel & (priv)->msglevel) \
158 netdev_warn(priv->netdev, format, \
163 static inline u16 mlx5_min_rx_wqes(int wq_type, u32 wq_size)
166 case MLX5_WQ_TYPE_LINKED_LIST_STRIDING_RQ:
167 return min_t(u16, MLX5E_PARAMS_DEFAULT_MIN_RX_WQES_MPW,
170 return min_t(u16, MLX5E_PARAMS_DEFAULT_MIN_RX_WQES,
175 static inline int mlx5e_get_max_num_channels(struct mlx5_core_dev *mdev)
177 return is_kdump_kernel() ?
178 MLX5E_MIN_NUM_CHANNELS :
179 min_t(int, mdev->priv.eq_table.num_comp_vectors,
180 MLX5E_MAX_NUM_CHANNELS);
183 struct mlx5e_tx_wqe {
184 struct mlx5_wqe_ctrl_seg ctrl;
185 struct mlx5_wqe_eth_seg eth;
186 struct mlx5_wqe_data_seg data[0];
189 struct mlx5e_rx_wqe {
190 struct mlx5_wqe_srq_next_seg next;
191 struct mlx5_wqe_data_seg data;
194 struct mlx5e_umr_wqe {
195 struct mlx5_wqe_ctrl_seg ctrl;
196 struct mlx5_wqe_umr_ctrl_seg uctrl;
197 struct mlx5_mkey_seg mkc;
198 struct mlx5_mtt inline_mtts[0];
201 extern const char mlx5e_self_tests[][ETH_GSTRING_LEN];
203 static const char mlx5e_priv_flags[][ETH_GSTRING_LEN] = {
210 enum mlx5e_priv_flag {
211 MLX5E_PFLAG_RX_CQE_BASED_MODER = (1 << 0),
212 MLX5E_PFLAG_TX_CQE_BASED_MODER = (1 << 1),
213 MLX5E_PFLAG_RX_CQE_COMPRESS = (1 << 2),
214 MLX5E_PFLAG_RX_STRIDING_RQ = (1 << 3),
217 #define MLX5E_SET_PFLAG(params, pflag, enable) \
220 (params)->pflags |= (pflag); \
222 (params)->pflags &= ~(pflag); \
225 #define MLX5E_GET_PFLAG(params, pflag) (!!((params)->pflags & (pflag)))
227 #ifdef CONFIG_MLX5_CORE_EN_DCB
228 #define MLX5E_MAX_BW_ALLOC 100 /* Max percentage of BW allocation */
231 struct mlx5e_params {
234 u8 log_rq_mtu_frames;
237 bool rx_cqe_compress_def;
238 struct net_dim_cq_moder rx_cq_moderation;
239 struct net_dim_cq_moder tx_cq_moderation;
242 u8 tx_min_inline_mode;
244 u8 toeplitz_hash_key[40];
245 u32 indirection_rqt[MLX5E_INDIR_RQT_SIZE];
246 bool vlan_strip_disable;
252 struct bpf_prog *xdp_prog;
257 #ifdef CONFIG_MLX5_CORE_EN_DCB
258 struct mlx5e_cee_config {
259 /* bw pct for priority group */
260 u8 pg_bw_pct[CEE_DCBX_MAX_PGS];
261 u8 prio_to_pg_map[CEE_DCBX_MAX_PRIO];
262 bool pfc_setting[CEE_DCBX_MAX_PRIO];
269 MLX5_DCB_CHG_NO_RESET,
273 enum mlx5_dcbx_oper_mode mode;
274 struct mlx5e_cee_config cee_cfg; /* pending configuration */
277 /* The only setting that cannot be read from FW */
278 u8 tc_tsa[IEEE_8021QAZ_MAX_TCS];
281 /* Buffer configuration */
287 struct mlx5e_dcbx_dp {
288 u8 dscp2prio[MLX5E_MAX_DSCP];
294 MLX5E_RQ_STATE_ENABLED,
299 /* data path - accessed per cqe */
302 /* data path - accessed per napi poll */
304 struct napi_struct *napi;
305 struct mlx5_core_cq mcq;
306 struct mlx5e_channel *channel;
308 /* cqe decompression */
309 struct mlx5_cqe64 title;
310 struct mlx5_mini_cqe8 mini_arr[MLX5_MINI_CQE_ARRAY_SIZE];
313 u16 decmprs_wqe_counter;
316 struct mlx5_core_dev *mdev;
317 struct mlx5_wq_ctrl wq_ctrl;
318 } ____cacheline_aligned_in_smp;
320 struct mlx5e_tx_wqe_info {
327 enum mlx5e_dma_map_type {
328 MLX5E_DMA_MAP_SINGLE,
332 struct mlx5e_sq_dma {
335 enum mlx5e_dma_map_type type;
339 MLX5E_SQ_STATE_ENABLED,
340 MLX5E_SQ_STATE_RECOVERING,
341 MLX5E_SQ_STATE_IPSEC,
346 struct mlx5e_sq_wqe_info {
353 /* dirtied @completion */
356 struct net_dim dim; /* Adaptive Moderation */
359 u16 pc ____cacheline_aligned_in_smp;
364 /* write@xmit, read@completion */
366 struct mlx5e_sq_dma *dma_fifo;
367 struct mlx5e_tx_wqe_info *wqe_info;
371 struct mlx5_wq_cyc wq;
373 struct mlx5e_sq_stats *stats;
374 void __iomem *uar_map;
375 struct netdev_queue *txq;
381 struct hwtstamp_config *tstamp;
382 struct mlx5_clock *clock;
385 struct mlx5_wq_ctrl wq_ctrl;
386 struct mlx5e_channel *channel;
389 struct mlx5e_txqsq_recover {
390 struct work_struct recover_work;
393 } ____cacheline_aligned_in_smp;
398 /* dirtied @rx completion */
404 /* write@xmit, read@completion */
406 struct mlx5e_dma_info *di;
412 struct mlx5_wq_cyc wq;
413 void __iomem *uar_map;
421 struct mlx5_wq_ctrl wq_ctrl;
422 struct mlx5e_channel *channel;
423 } ____cacheline_aligned_in_smp;
429 u16 pc ____cacheline_aligned_in_smp;
433 /* write@xmit, read@completion */
435 struct mlx5e_sq_wqe_info *ico_wqe;
439 struct mlx5_wq_cyc wq;
440 void __iomem *uar_map;
445 struct mlx5_wq_ctrl wq_ctrl;
446 struct mlx5e_channel *channel;
447 } ____cacheline_aligned_in_smp;
450 mlx5e_wqc_has_room_for(struct mlx5_wq_cyc *wq, u16 cc, u16 pc, u16 n)
452 return (mlx5_wq_cyc_ctr2ix(wq, cc - pc) >= n) || (cc == pc);
455 struct mlx5e_dma_info {
460 struct mlx5e_wqe_frag_info {
461 struct mlx5e_dma_info di;
465 struct mlx5e_umr_dma_info {
466 struct mlx5e_dma_info dma_info[MLX5_MPWRQ_PAGES_PER_WQE];
469 struct mlx5e_mpw_info {
470 struct mlx5e_umr_dma_info umr;
471 u16 consumed_strides;
472 DECLARE_BITMAP(xdp_xmit_bitmap, MLX5_MPWRQ_PAGES_PER_WQE);
475 /* a single cache unit is capable to serve one napi call (for non-striding rq)
476 * or a MPWQE (for striding rq).
478 #define MLX5E_CACHE_UNIT (MLX5_MPWRQ_PAGES_PER_WQE > NAPI_POLL_WEIGHT ? \
479 MLX5_MPWRQ_PAGES_PER_WQE : NAPI_POLL_WEIGHT)
480 #define MLX5E_CACHE_SIZE (4 * roundup_pow_of_two(MLX5E_CACHE_UNIT))
481 struct mlx5e_page_cache {
484 struct mlx5e_dma_info page_cache[MLX5E_CACHE_SIZE];
488 typedef void (*mlx5e_fp_handle_rx_cqe)(struct mlx5e_rq*, struct mlx5_cqe64*);
489 typedef struct sk_buff *
490 (*mlx5e_fp_skb_from_cqe_mpwrq)(struct mlx5e_rq *rq, struct mlx5e_mpw_info *wi,
491 u16 cqe_bcnt, u32 head_offset, u32 page_idx);
492 typedef bool (*mlx5e_fp_post_rx_wqes)(struct mlx5e_rq *rq);
493 typedef void (*mlx5e_fp_dealloc_wqe)(struct mlx5e_rq*, u16);
496 MLX5E_RQ_FLAG_XDP_XMIT = BIT(0),
501 struct mlx5_wq_ll wq;
505 struct mlx5e_wqe_frag_info *frag_info;
506 u32 frag_sz; /* max possible skb frag_sz */
512 struct mlx5e_umr_wqe umr_wqe;
513 struct mlx5e_mpw_info *info;
514 mlx5e_fp_skb_from_cqe_mpwrq skb_from_cqe_mpwrq;
517 bool umr_in_progress;
523 u8 map_dir; /* dma map direction */
526 struct mlx5e_channel *channel;
528 struct net_device *netdev;
529 struct mlx5e_rq_stats *stats;
531 struct mlx5e_page_cache page_cache;
532 struct hwtstamp_config *tstamp;
533 struct mlx5_clock *clock;
535 mlx5e_fp_handle_rx_cqe handle_rx_cqe;
536 mlx5e_fp_post_rx_wqes post_wqes;
537 mlx5e_fp_dealloc_wqe dealloc_wqe;
542 struct net_dim dim; /* Dynamic Interrupt Moderation */
545 struct bpf_prog *xdp_prog;
547 struct mlx5e_xdpsq xdpsq;
548 DECLARE_BITMAP(flags, 8);
549 struct page_pool *page_pool;
552 struct mlx5_wq_ctrl wq_ctrl;
556 struct mlx5_core_dev *mdev;
557 struct mlx5_core_mkey umr_mkey;
559 /* XDP read-mostly */
560 struct xdp_rxq_info xdp_rxq;
561 } ____cacheline_aligned_in_smp;
563 struct mlx5e_channel {
566 struct mlx5e_txqsq sq[MLX5E_MAX_NUM_TC];
567 struct mlx5e_icosq icosq; /* internal control operations */
569 struct napi_struct napi;
571 struct net_device *netdev;
575 /* data path - accessed per napi poll */
576 struct irq_desc *irq_desc;
577 struct mlx5e_ch_stats *stats;
580 struct mlx5e_priv *priv;
581 struct mlx5_core_dev *mdev;
582 struct hwtstamp_config *tstamp;
587 struct mlx5e_channels {
588 struct mlx5e_channel **c;
590 struct mlx5e_params params;
593 struct mlx5e_channel_stats {
594 struct mlx5e_ch_stats ch;
595 struct mlx5e_sq_stats sq[MLX5E_MAX_NUM_TC];
596 struct mlx5e_rq_stats rq;
597 } ____cacheline_aligned_in_smp;
599 enum mlx5e_traffic_types {
604 MLX5E_TT_IPV4_IPSEC_AH,
605 MLX5E_TT_IPV6_IPSEC_AH,
606 MLX5E_TT_IPV4_IPSEC_ESP,
607 MLX5E_TT_IPV6_IPSEC_ESP,
612 MLX5E_NUM_INDIR_TIRS = MLX5E_TT_ANY,
615 enum mlx5e_tunnel_types {
622 MLX5E_STATE_ASYNC_EVENTS_ENABLED,
624 MLX5E_STATE_DESTROYING,
627 struct mlx5e_vxlan_db {
628 spinlock_t lock; /* protect vxlan table */
629 struct radix_tree_root tree;
632 struct mlx5e_l2_rule {
633 u8 addr[ETH_ALEN + 2];
634 struct mlx5_flow_handle *rule;
637 struct mlx5e_flow_table {
639 struct mlx5_flow_table *t;
640 struct mlx5_flow_group **g;
643 #define MLX5E_L2_ADDR_HASH_SIZE BIT(BITS_PER_BYTE)
645 struct mlx5e_tc_table {
646 struct mlx5_flow_table *t;
648 struct rhashtable ht;
650 DECLARE_HASHTABLE(mod_hdr_tbl, 8);
651 DECLARE_HASHTABLE(hairpin_tbl, 8);
654 struct mlx5e_vlan_table {
655 struct mlx5e_flow_table ft;
656 DECLARE_BITMAP(active_cvlans, VLAN_N_VID);
657 DECLARE_BITMAP(active_svlans, VLAN_N_VID);
658 struct mlx5_flow_handle *active_cvlans_rule[VLAN_N_VID];
659 struct mlx5_flow_handle *active_svlans_rule[VLAN_N_VID];
660 struct mlx5_flow_handle *untagged_rule;
661 struct mlx5_flow_handle *any_cvlan_rule;
662 struct mlx5_flow_handle *any_svlan_rule;
663 bool cvlan_filter_disabled;
666 struct mlx5e_l2_table {
667 struct mlx5e_flow_table ft;
668 struct hlist_head netdev_uc[MLX5E_L2_ADDR_HASH_SIZE];
669 struct hlist_head netdev_mc[MLX5E_L2_ADDR_HASH_SIZE];
670 struct mlx5e_l2_rule broadcast;
671 struct mlx5e_l2_rule allmulti;
672 struct mlx5e_l2_rule promisc;
673 bool broadcast_enabled;
674 bool allmulti_enabled;
675 bool promisc_enabled;
678 /* L3/L4 traffic type classifier */
679 struct mlx5e_ttc_table {
680 struct mlx5e_flow_table ft;
681 struct mlx5_flow_handle *rules[MLX5E_NUM_TT];
682 struct mlx5_flow_handle *tunnel_rules[MLX5E_NUM_TUNNEL_TT];
685 #define ARFS_HASH_SHIFT BITS_PER_BYTE
686 #define ARFS_HASH_SIZE BIT(BITS_PER_BYTE)
688 struct mlx5e_flow_table ft;
689 struct mlx5_flow_handle *default_rule;
690 struct hlist_head rules_hash[ARFS_HASH_SIZE];
701 struct mlx5e_arfs_tables {
702 struct arfs_table arfs_tables[ARFS_NUM_TYPES];
703 /* Protect aRFS rules list */
704 spinlock_t arfs_lock;
705 struct list_head rules;
707 struct workqueue_struct *wq;
712 MLX5E_VLAN_FT_LEVEL = 0,
715 MLX5E_INNER_TTC_FT_LEVEL,
720 MLX5E_TC_FT_LEVEL = 0,
721 MLX5E_TC_TTC_FT_LEVEL,
724 struct mlx5e_ethtool_table {
725 struct mlx5_flow_table *ft;
729 #define ETHTOOL_NUM_L3_L4_FTS 7
730 #define ETHTOOL_NUM_L2_FTS 4
732 struct mlx5e_ethtool_steering {
733 struct mlx5e_ethtool_table l3_l4_ft[ETHTOOL_NUM_L3_L4_FTS];
734 struct mlx5e_ethtool_table l2_ft[ETHTOOL_NUM_L2_FTS];
735 struct list_head rules;
739 struct mlx5e_flow_steering {
740 struct mlx5_flow_namespace *ns;
741 struct mlx5e_ethtool_steering ethtool;
742 struct mlx5e_tc_table tc;
743 struct mlx5e_vlan_table vlan;
744 struct mlx5e_l2_table l2;
745 struct mlx5e_ttc_table ttc;
746 struct mlx5e_ttc_table inner_ttc;
747 struct mlx5e_arfs_tables arfs;
757 struct mlx5e_rqt rqt;
758 struct list_head list;
767 /* priv data path fields - start */
768 struct mlx5e_txqsq *txq2sq[MLX5E_MAX_NUM_CHANNELS * MLX5E_MAX_NUM_TC];
769 int channel_tc2txq[MLX5E_MAX_NUM_CHANNELS][MLX5E_MAX_NUM_TC];
770 #ifdef CONFIG_MLX5_CORE_EN_DCB
771 struct mlx5e_dcbx_dp dcbx_dp;
773 /* priv data path fields - end */
777 struct mutex state_lock; /* Protects Interface state */
778 struct mlx5e_rq drop_rq;
780 rwlock_t stats_lock; /* Protects channels SW stats updates */
781 bool channels_active;
782 struct mlx5e_channels channels;
783 u32 tisn[MLX5E_MAX_NUM_TC];
784 struct mlx5e_rqt indir_rqt;
785 struct mlx5e_tir indir_tir[MLX5E_NUM_INDIR_TIRS];
786 struct mlx5e_tir inner_indir_tir[MLX5E_NUM_INDIR_TIRS];
787 struct mlx5e_tir direct_tir[MLX5E_MAX_NUM_CHANNELS];
788 u32 tx_rates[MLX5E_MAX_NUM_SQS];
790 struct mlx5e_flow_steering fs;
791 struct mlx5e_vxlan_db vxlan;
793 struct workqueue_struct *wq;
794 struct work_struct update_carrier_work;
795 struct work_struct set_rx_mode_work;
796 struct work_struct tx_timeout_work;
797 struct delayed_work update_stats_work;
799 struct mlx5_core_dev *mdev;
800 struct net_device *netdev;
801 struct mlx5e_stats stats;
802 struct mlx5e_channel_stats channel_stats[MLX5E_MAX_NUM_CHANNELS];
804 struct hwtstamp_config tstamp;
806 u16 drop_rq_q_counter;
807 #ifdef CONFIG_MLX5_CORE_EN_DCB
808 struct mlx5e_dcbx dcbx;
811 const struct mlx5e_profile *profile;
813 #ifdef CONFIG_MLX5_EN_IPSEC
814 struct mlx5e_ipsec *ipsec;
816 #ifdef CONFIG_MLX5_EN_TLS
817 struct mlx5e_tls *tls;
821 struct mlx5e_profile {
822 void (*init)(struct mlx5_core_dev *mdev,
823 struct net_device *netdev,
824 const struct mlx5e_profile *profile, void *ppriv);
825 void (*cleanup)(struct mlx5e_priv *priv);
826 int (*init_rx)(struct mlx5e_priv *priv);
827 void (*cleanup_rx)(struct mlx5e_priv *priv);
828 int (*init_tx)(struct mlx5e_priv *priv);
829 void (*cleanup_tx)(struct mlx5e_priv *priv);
830 void (*enable)(struct mlx5e_priv *priv);
831 void (*disable)(struct mlx5e_priv *priv);
832 void (*update_stats)(struct mlx5e_priv *priv);
833 void (*update_carrier)(struct mlx5e_priv *priv);
834 int (*max_nch)(struct mlx5_core_dev *mdev);
836 mlx5e_fp_handle_rx_cqe handle_rx_cqe;
837 mlx5e_fp_handle_rx_cqe handle_rx_cqe_mpwqe;
839 void (*netdev_registered_init)(struct mlx5e_priv *priv);
840 void (*netdev_registered_remove)(struct mlx5e_priv *priv);
844 void mlx5e_build_ptys2ethtool_map(void);
846 u16 mlx5e_select_queue(struct net_device *dev, struct sk_buff *skb,
847 void *accel_priv, select_queue_fallback_t fallback);
848 netdev_tx_t mlx5e_xmit(struct sk_buff *skb, struct net_device *dev);
849 netdev_tx_t mlx5e_sq_xmit(struct mlx5e_txqsq *sq, struct sk_buff *skb,
850 struct mlx5e_tx_wqe *wqe, u16 pi);
852 void mlx5e_completion_event(struct mlx5_core_cq *mcq);
853 void mlx5e_cq_error_event(struct mlx5_core_cq *mcq, enum mlx5_event event);
854 int mlx5e_napi_poll(struct napi_struct *napi, int budget);
855 bool mlx5e_poll_tx_cq(struct mlx5e_cq *cq, int napi_budget);
856 int mlx5e_poll_rx_cq(struct mlx5e_cq *cq, int budget);
857 bool mlx5e_poll_xdpsq_cq(struct mlx5e_cq *cq);
858 void mlx5e_free_txqsq_descs(struct mlx5e_txqsq *sq);
859 void mlx5e_free_xdpsq_descs(struct mlx5e_xdpsq *sq);
861 bool mlx5e_check_fragmented_striding_rq_cap(struct mlx5_core_dev *mdev);
862 bool mlx5e_striding_rq_possible(struct mlx5_core_dev *mdev,
863 struct mlx5e_params *params);
865 void mlx5e_page_release(struct mlx5e_rq *rq, struct mlx5e_dma_info *dma_info,
867 void mlx5e_handle_rx_cqe(struct mlx5e_rq *rq, struct mlx5_cqe64 *cqe);
868 void mlx5e_handle_rx_cqe_mpwrq(struct mlx5e_rq *rq, struct mlx5_cqe64 *cqe);
869 bool mlx5e_post_rx_wqes(struct mlx5e_rq *rq);
870 bool mlx5e_post_rx_mpwqes(struct mlx5e_rq *rq);
871 void mlx5e_dealloc_rx_wqe(struct mlx5e_rq *rq, u16 ix);
872 void mlx5e_dealloc_rx_mpwqe(struct mlx5e_rq *rq, u16 ix);
873 void mlx5e_free_rx_mpwqe(struct mlx5e_rq *rq, struct mlx5e_mpw_info *wi);
875 mlx5e_skb_from_cqe_mpwrq_linear(struct mlx5e_rq *rq, struct mlx5e_mpw_info *wi,
876 u16 cqe_bcnt, u32 head_offset, u32 page_idx);
878 mlx5e_skb_from_cqe_mpwrq_nonlinear(struct mlx5e_rq *rq, struct mlx5e_mpw_info *wi,
879 u16 cqe_bcnt, u32 head_offset, u32 page_idx);
881 void mlx5e_update_stats(struct mlx5e_priv *priv);
883 int mlx5e_create_flow_steering(struct mlx5e_priv *priv);
884 void mlx5e_destroy_flow_steering(struct mlx5e_priv *priv);
885 void mlx5e_init_l2_addr(struct mlx5e_priv *priv);
886 void mlx5e_destroy_flow_table(struct mlx5e_flow_table *ft);
887 int mlx5e_self_test_num(struct mlx5e_priv *priv);
888 void mlx5e_self_test(struct net_device *ndev, struct ethtool_test *etest,
890 int mlx5e_ethtool_get_flow(struct mlx5e_priv *priv, struct ethtool_rxnfc *info,
892 int mlx5e_ethtool_get_all_flows(struct mlx5e_priv *priv,
893 struct ethtool_rxnfc *info, u32 *rule_locs);
894 int mlx5e_ethtool_flow_replace(struct mlx5e_priv *priv,
895 struct ethtool_rx_flow_spec *fs);
896 int mlx5e_ethtool_flow_remove(struct mlx5e_priv *priv,
898 void mlx5e_ethtool_init_steering(struct mlx5e_priv *priv);
899 void mlx5e_ethtool_cleanup_steering(struct mlx5e_priv *priv);
900 void mlx5e_set_rx_mode_work(struct work_struct *work);
902 int mlx5e_hwstamp_set(struct mlx5e_priv *priv, struct ifreq *ifr);
903 int mlx5e_hwstamp_get(struct mlx5e_priv *priv, struct ifreq *ifr);
904 int mlx5e_modify_rx_cqe_compression_locked(struct mlx5e_priv *priv, bool val);
906 int mlx5e_vlan_rx_add_vid(struct net_device *dev, __always_unused __be16 proto,
908 int mlx5e_vlan_rx_kill_vid(struct net_device *dev, __always_unused __be16 proto,
910 void mlx5e_enable_cvlan_filter(struct mlx5e_priv *priv);
911 void mlx5e_disable_cvlan_filter(struct mlx5e_priv *priv);
912 void mlx5e_timestamp_init(struct mlx5e_priv *priv);
914 struct mlx5e_redirect_rqt_param {
917 u32 rqn; /* Direct RQN (Non-RSS) */
920 struct mlx5e_channels *channels;
921 } rss; /* RSS data */
925 int mlx5e_redirect_rqt(struct mlx5e_priv *priv, u32 rqtn, int sz,
926 struct mlx5e_redirect_rqt_param rrp);
927 void mlx5e_build_indir_tir_ctx_hash(struct mlx5e_params *params,
928 enum mlx5e_traffic_types tt,
929 void *tirc, bool inner);
931 int mlx5e_open_locked(struct net_device *netdev);
932 int mlx5e_close_locked(struct net_device *netdev);
934 int mlx5e_open_channels(struct mlx5e_priv *priv,
935 struct mlx5e_channels *chs);
936 void mlx5e_close_channels(struct mlx5e_channels *chs);
938 /* Function pointer to be used to modify WH settings while
941 typedef int (*mlx5e_fp_hw_modify)(struct mlx5e_priv *priv);
942 void mlx5e_switch_priv_channels(struct mlx5e_priv *priv,
943 struct mlx5e_channels *new_chs,
944 mlx5e_fp_hw_modify hw_modify);
945 void mlx5e_activate_priv_channels(struct mlx5e_priv *priv);
946 void mlx5e_deactivate_priv_channels(struct mlx5e_priv *priv);
948 void mlx5e_build_default_indir_rqt(u32 *indirection_rqt, int len,
950 void mlx5e_set_tx_cq_mode_params(struct mlx5e_params *params,
952 void mlx5e_set_rx_cq_mode_params(struct mlx5e_params *params,
954 void mlx5e_set_rq_type(struct mlx5_core_dev *mdev, struct mlx5e_params *params);
955 void mlx5e_init_rq_type_params(struct mlx5_core_dev *mdev,
956 struct mlx5e_params *params);
958 static inline bool mlx5e_tunnel_inner_ft_supported(struct mlx5_core_dev *mdev)
960 return (MLX5_CAP_ETH(mdev, tunnel_stateless_gre) &&
961 MLX5_CAP_FLOWTABLE_NIC_RX(mdev, ft_field_support.inner_ip_version));
964 static inline void mlx5e_sq_fetch_wqe(struct mlx5e_txqsq *sq,
965 struct mlx5e_tx_wqe **wqe,
968 struct mlx5_wq_cyc *wq = &sq->wq;
970 *pi = mlx5_wq_cyc_ctr2ix(wq, sq->pc);
971 *wqe = mlx5_wq_cyc_get_wqe(wq, *pi);
972 memset(*wqe, 0, sizeof(**wqe));
976 struct mlx5e_tx_wqe *mlx5e_post_nop(struct mlx5_wq_cyc *wq, u32 sqn, u16 *pc)
978 u16 pi = mlx5_wq_cyc_ctr2ix(wq, *pc);
979 struct mlx5e_tx_wqe *wqe = mlx5_wq_cyc_get_wqe(wq, pi);
980 struct mlx5_wqe_ctrl_seg *cseg = &wqe->ctrl;
982 memset(cseg, 0, sizeof(*cseg));
984 cseg->opmod_idx_opcode = cpu_to_be32((*pc << 8) | MLX5_OPCODE_NOP);
985 cseg->qpn_ds = cpu_to_be32((sqn << 8) | 0x01);
993 void mlx5e_notify_hw(struct mlx5_wq_cyc *wq, u16 pc,
994 void __iomem *uar_map,
995 struct mlx5_wqe_ctrl_seg *ctrl)
997 ctrl->fm_ce_se = MLX5_WQE_CTRL_CQ_UPDATE;
998 /* ensure wqe is visible to device before updating doorbell record */
1001 *wq->db = cpu_to_be32(pc);
1003 /* ensure doorbell record is visible to device before ringing the
1008 mlx5_write64((__be32 *)ctrl, uar_map, NULL);
1011 static inline void mlx5e_cq_arm(struct mlx5e_cq *cq)
1013 struct mlx5_core_cq *mcq;
1016 mlx5_cq_arm(mcq, MLX5_CQ_DB_REQ_NOT, mcq->uar->map, cq->wq.cc);
1019 extern const struct ethtool_ops mlx5e_ethtool_ops;
1020 #ifdef CONFIG_MLX5_CORE_EN_DCB
1021 extern const struct dcbnl_rtnl_ops mlx5e_dcbnl_ops;
1022 int mlx5e_dcbnl_ieee_setets_core(struct mlx5e_priv *priv, struct ieee_ets *ets);
1023 void mlx5e_dcbnl_initialize(struct mlx5e_priv *priv);
1024 void mlx5e_dcbnl_init_app(struct mlx5e_priv *priv);
1025 void mlx5e_dcbnl_delete_app(struct mlx5e_priv *priv);
1028 #ifndef CONFIG_RFS_ACCEL
1029 static inline int mlx5e_arfs_create_tables(struct mlx5e_priv *priv)
1034 static inline void mlx5e_arfs_destroy_tables(struct mlx5e_priv *priv) {}
1036 static inline int mlx5e_arfs_enable(struct mlx5e_priv *priv)
1041 static inline int mlx5e_arfs_disable(struct mlx5e_priv *priv)
1046 int mlx5e_arfs_create_tables(struct mlx5e_priv *priv);
1047 void mlx5e_arfs_destroy_tables(struct mlx5e_priv *priv);
1048 int mlx5e_arfs_enable(struct mlx5e_priv *priv);
1049 int mlx5e_arfs_disable(struct mlx5e_priv *priv);
1050 int mlx5e_rx_flow_steer(struct net_device *dev, const struct sk_buff *skb,
1051 u16 rxq_index, u32 flow_id);
1054 int mlx5e_create_tir(struct mlx5_core_dev *mdev,
1055 struct mlx5e_tir *tir, u32 *in, int inlen);
1056 void mlx5e_destroy_tir(struct mlx5_core_dev *mdev,
1057 struct mlx5e_tir *tir);
1058 int mlx5e_create_mdev_resources(struct mlx5_core_dev *mdev);
1059 void mlx5e_destroy_mdev_resources(struct mlx5_core_dev *mdev);
1060 int mlx5e_refresh_tirs(struct mlx5e_priv *priv, bool enable_uc_lb);
1062 /* common netdev helpers */
1063 int mlx5e_create_indirect_rqt(struct mlx5e_priv *priv);
1065 int mlx5e_create_indirect_tirs(struct mlx5e_priv *priv);
1066 void mlx5e_destroy_indirect_tirs(struct mlx5e_priv *priv);
1068 int mlx5e_create_direct_rqts(struct mlx5e_priv *priv);
1069 void mlx5e_destroy_direct_rqts(struct mlx5e_priv *priv);
1070 int mlx5e_create_direct_tirs(struct mlx5e_priv *priv);
1071 void mlx5e_destroy_direct_tirs(struct mlx5e_priv *priv);
1072 void mlx5e_destroy_rqt(struct mlx5e_priv *priv, struct mlx5e_rqt *rqt);
1075 struct mlx5_flow_table_attr ft_attr;
1077 u32 indir_tirn[MLX5E_NUM_INDIR_TIRS];
1078 struct mlx5e_ttc_table *inner_ttc;
1081 void mlx5e_set_ttc_basic_params(struct mlx5e_priv *priv, struct ttc_params *ttc_params);
1082 void mlx5e_set_ttc_ft_params(struct ttc_params *ttc_params);
1083 void mlx5e_set_inner_ttc_ft_params(struct ttc_params *ttc_params);
1085 int mlx5e_create_ttc_table(struct mlx5e_priv *priv, struct ttc_params *params,
1086 struct mlx5e_ttc_table *ttc);
1087 void mlx5e_destroy_ttc_table(struct mlx5e_priv *priv,
1088 struct mlx5e_ttc_table *ttc);
1090 int mlx5e_create_inner_ttc_table(struct mlx5e_priv *priv, struct ttc_params *params,
1091 struct mlx5e_ttc_table *ttc);
1092 void mlx5e_destroy_inner_ttc_table(struct mlx5e_priv *priv,
1093 struct mlx5e_ttc_table *ttc);
1095 int mlx5e_create_tis(struct mlx5_core_dev *mdev, int tc,
1096 u32 underlay_qpn, u32 *tisn);
1097 void mlx5e_destroy_tis(struct mlx5_core_dev *mdev, u32 tisn);
1099 int mlx5e_create_tises(struct mlx5e_priv *priv);
1100 void mlx5e_cleanup_nic_tx(struct mlx5e_priv *priv);
1101 int mlx5e_close(struct net_device *netdev);
1102 int mlx5e_open(struct net_device *netdev);
1103 void mlx5e_update_stats_work(struct work_struct *work);
1105 int mlx5e_bits_invert(unsigned long a, int size);
1107 /* ethtool helpers */
1108 void mlx5e_ethtool_get_drvinfo(struct mlx5e_priv *priv,
1109 struct ethtool_drvinfo *drvinfo);
1110 void mlx5e_ethtool_get_strings(struct mlx5e_priv *priv,
1111 uint32_t stringset, uint8_t *data);
1112 int mlx5e_ethtool_get_sset_count(struct mlx5e_priv *priv, int sset);
1113 void mlx5e_ethtool_get_ethtool_stats(struct mlx5e_priv *priv,
1114 struct ethtool_stats *stats, u64 *data);
1115 void mlx5e_ethtool_get_ringparam(struct mlx5e_priv *priv,
1116 struct ethtool_ringparam *param);
1117 int mlx5e_ethtool_set_ringparam(struct mlx5e_priv *priv,
1118 struct ethtool_ringparam *param);
1119 void mlx5e_ethtool_get_channels(struct mlx5e_priv *priv,
1120 struct ethtool_channels *ch);
1121 int mlx5e_ethtool_set_channels(struct mlx5e_priv *priv,
1122 struct ethtool_channels *ch);
1123 int mlx5e_ethtool_get_coalesce(struct mlx5e_priv *priv,
1124 struct ethtool_coalesce *coal);
1125 int mlx5e_ethtool_set_coalesce(struct mlx5e_priv *priv,
1126 struct ethtool_coalesce *coal);
1127 int mlx5e_ethtool_get_ts_info(struct mlx5e_priv *priv,
1128 struct ethtool_ts_info *info);
1129 int mlx5e_ethtool_flash_device(struct mlx5e_priv *priv,
1130 struct ethtool_flash *flash);
1132 /* mlx5e generic netdev management API */
1134 mlx5e_create_netdev(struct mlx5_core_dev *mdev, const struct mlx5e_profile *profile,
1136 int mlx5e_attach_netdev(struct mlx5e_priv *priv);
1137 void mlx5e_detach_netdev(struct mlx5e_priv *priv);
1138 void mlx5e_destroy_netdev(struct mlx5e_priv *priv);
1139 void mlx5e_build_nic_params(struct mlx5_core_dev *mdev,
1140 struct mlx5e_params *params,
1141 u16 max_channels, u16 mtu);
1142 u8 mlx5e_params_calculate_tx_min_inline(struct mlx5_core_dev *mdev);
1143 void mlx5e_rx_dim_work(struct work_struct *work);
1144 void mlx5e_tx_dim_work(struct work_struct *work);
1145 #endif /* __MLX5_EN_H__ */