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/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>
52 #include <linux/bits.h>
54 #include "mlx5_core.h"
58 extern const struct net_device_ops mlx5e_netdev_ops;
61 #define MLX5E_METADATA_ETHER_TYPE (0x8CE4)
62 #define MLX5E_METADATA_ETHER_LEN 8
64 #define MLX5_SET_CFG(p, f, v) MLX5_SET(create_flow_group_in, p, f, v)
66 #define MLX5E_ETH_HARD_MTU (ETH_HLEN + VLAN_HLEN + ETH_FCS_LEN)
68 #define MLX5E_HW2SW_MTU(params, hwmtu) ((hwmtu) - ((params)->hard_mtu))
69 #define MLX5E_SW2HW_MTU(params, swmtu) ((swmtu) + ((params)->hard_mtu))
71 #define MLX5E_MAX_PRIORITY 8
72 #define MLX5E_MAX_DSCP 64
73 #define MLX5E_MAX_NUM_TC 8
75 #define MLX5_RX_HEADROOM NET_SKB_PAD
76 #define MLX5_SKB_FRAG_SZ(len) (SKB_DATA_ALIGN(len) + \
77 SKB_DATA_ALIGN(sizeof(struct skb_shared_info)))
79 #define MLX5E_RX_MAX_HEAD (256)
81 #define MLX5_MPWRQ_MIN_LOG_STRIDE_SZ(mdev) \
82 (6 + MLX5_CAP_GEN(mdev, cache_line_128byte)) /* HW restriction */
83 #define MLX5_MPWRQ_LOG_STRIDE_SZ(mdev, req) \
84 max_t(u32, MLX5_MPWRQ_MIN_LOG_STRIDE_SZ(mdev), req)
85 #define MLX5_MPWRQ_DEF_LOG_STRIDE_SZ(mdev) \
86 MLX5_MPWRQ_LOG_STRIDE_SZ(mdev, order_base_2(MLX5E_RX_MAX_HEAD))
88 #define MLX5_MPWRQ_LOG_WQE_SZ 18
89 #define MLX5_MPWRQ_WQE_PAGE_ORDER (MLX5_MPWRQ_LOG_WQE_SZ - PAGE_SHIFT > 0 ? \
90 MLX5_MPWRQ_LOG_WQE_SZ - PAGE_SHIFT : 0)
91 #define MLX5_MPWRQ_PAGES_PER_WQE BIT(MLX5_MPWRQ_WQE_PAGE_ORDER)
93 #define MLX5_MTT_OCTW(npages) (ALIGN(npages, 8) / 2)
94 #define MLX5E_REQUIRED_WQE_MTTS (ALIGN(MLX5_MPWRQ_PAGES_PER_WQE, 8))
95 #define MLX5E_LOG_ALIGNED_MPWQE_PPW (ilog2(MLX5E_REQUIRED_WQE_MTTS))
96 #define MLX5E_REQUIRED_MTTS(wqes) (wqes * MLX5E_REQUIRED_WQE_MTTS)
97 #define MLX5E_MAX_RQ_NUM_MTTS \
98 ((1 << 16) * 2) /* So that MLX5_MTT_OCTW(num_mtts) fits into u16 */
99 #define MLX5E_ORDER2_MAX_PACKET_MTU (order_base_2(10 * 1024))
100 #define MLX5E_PARAMS_MAXIMUM_LOG_RQ_SIZE_MPW \
101 (ilog2(MLX5E_MAX_RQ_NUM_MTTS / MLX5E_REQUIRED_WQE_MTTS))
102 #define MLX5E_LOG_MAX_RQ_NUM_PACKETS_MPW \
103 (MLX5E_PARAMS_MAXIMUM_LOG_RQ_SIZE_MPW + \
104 (MLX5_MPWRQ_LOG_WQE_SZ - MLX5E_ORDER2_MAX_PACKET_MTU))
106 #define MLX5E_MIN_SKB_FRAG_SZ (MLX5_SKB_FRAG_SZ(MLX5_RX_HEADROOM))
107 #define MLX5E_LOG_MAX_RX_WQE_BULK \
108 (ilog2(PAGE_SIZE / roundup_pow_of_two(MLX5E_MIN_SKB_FRAG_SZ)))
110 #define MLX5E_PARAMS_MINIMUM_LOG_SQ_SIZE 0x6
111 #define MLX5E_PARAMS_DEFAULT_LOG_SQ_SIZE 0xa
112 #define MLX5E_PARAMS_MAXIMUM_LOG_SQ_SIZE 0xd
114 #define MLX5E_PARAMS_MINIMUM_LOG_RQ_SIZE (1 + MLX5E_LOG_MAX_RX_WQE_BULK)
115 #define MLX5E_PARAMS_DEFAULT_LOG_RQ_SIZE 0xa
116 #define MLX5E_PARAMS_MAXIMUM_LOG_RQ_SIZE min_t(u8, 0xd, \
117 MLX5E_LOG_MAX_RQ_NUM_PACKETS_MPW)
119 #define MLX5E_PARAMS_MINIMUM_LOG_RQ_SIZE_MPW 0x2
121 #define MLX5E_PARAMS_DEFAULT_LRO_WQE_SZ (64 * 1024)
122 #define MLX5E_DEFAULT_LRO_TIMEOUT 32
123 #define MLX5E_LRO_TIMEOUT_ARR_SIZE 4
125 #define MLX5E_PARAMS_DEFAULT_RX_CQ_MODERATION_USEC 0x10
126 #define MLX5E_PARAMS_DEFAULT_RX_CQ_MODERATION_USEC_FROM_CQE 0x3
127 #define MLX5E_PARAMS_DEFAULT_RX_CQ_MODERATION_PKTS 0x20
128 #define MLX5E_PARAMS_DEFAULT_TX_CQ_MODERATION_USEC 0x10
129 #define MLX5E_PARAMS_DEFAULT_TX_CQ_MODERATION_USEC_FROM_CQE 0x10
130 #define MLX5E_PARAMS_DEFAULT_TX_CQ_MODERATION_PKTS 0x20
131 #define MLX5E_PARAMS_DEFAULT_MIN_RX_WQES 0x80
132 #define MLX5E_PARAMS_DEFAULT_MIN_RX_WQES_MPW 0x2
134 #define MLX5E_LOG_INDIR_RQT_SIZE 0x7
135 #define MLX5E_INDIR_RQT_SIZE BIT(MLX5E_LOG_INDIR_RQT_SIZE)
136 #define MLX5E_MIN_NUM_CHANNELS 0x1
137 #define MLX5E_MAX_NUM_CHANNELS (MLX5E_INDIR_RQT_SIZE >> 1)
138 #define MLX5E_MAX_NUM_SQS (MLX5E_MAX_NUM_CHANNELS * MLX5E_MAX_NUM_TC)
139 #define MLX5E_TX_CQ_POLL_BUDGET 128
140 #define MLX5E_SQ_RECOVER_MIN_INTERVAL 500 /* msecs */
142 #define MLX5E_UMR_WQE_INLINE_SZ \
143 (sizeof(struct mlx5e_umr_wqe) + \
144 ALIGN(MLX5_MPWRQ_PAGES_PER_WQE * sizeof(struct mlx5_mtt), \
145 MLX5_UMR_MTT_ALIGNMENT))
146 #define MLX5E_UMR_WQEBBS \
147 (DIV_ROUND_UP(MLX5E_UMR_WQE_INLINE_SZ, MLX5_SEND_WQE_BB))
149 #define MLX5E_MSG_LEVEL NETIF_MSG_LINK
151 #define mlx5e_dbg(mlevel, priv, format, ...) \
153 if (NETIF_MSG_##mlevel & (priv)->msglevel) \
154 netdev_warn(priv->netdev, format, \
159 static inline u16 mlx5_min_rx_wqes(int wq_type, u32 wq_size)
162 case MLX5_WQ_TYPE_LINKED_LIST_STRIDING_RQ:
163 return min_t(u16, MLX5E_PARAMS_DEFAULT_MIN_RX_WQES_MPW,
166 return min_t(u16, MLX5E_PARAMS_DEFAULT_MIN_RX_WQES,
171 /* Use this function to get max num channels (rxqs/txqs) only to create netdev */
172 static inline int mlx5e_get_max_num_channels(struct mlx5_core_dev *mdev)
174 return is_kdump_kernel() ?
175 MLX5E_MIN_NUM_CHANNELS :
176 min_t(int, mlx5_comp_vectors_count(mdev), MLX5E_MAX_NUM_CHANNELS);
179 /* Use this function to get max num channels after netdev was created */
180 static inline int mlx5e_get_netdev_max_channels(struct net_device *netdev)
182 return min_t(unsigned int, netdev->num_rx_queues,
183 netdev->num_tx_queues);
186 struct mlx5e_tx_wqe {
187 struct mlx5_wqe_ctrl_seg ctrl;
188 struct mlx5_wqe_eth_seg eth;
189 struct mlx5_wqe_data_seg data[0];
192 struct mlx5e_rx_wqe_ll {
193 struct mlx5_wqe_srq_next_seg next;
194 struct mlx5_wqe_data_seg data[0];
197 struct mlx5e_rx_wqe_cyc {
198 struct mlx5_wqe_data_seg data[0];
201 struct mlx5e_umr_wqe {
202 struct mlx5_wqe_ctrl_seg ctrl;
203 struct mlx5_wqe_umr_ctrl_seg uctrl;
204 struct mlx5_mkey_seg mkc;
205 struct mlx5_mtt inline_mtts[0];
208 extern const char mlx5e_self_tests[][ETH_GSTRING_LEN];
210 enum mlx5e_priv_flag {
211 MLX5E_PFLAG_RX_CQE_BASED_MODER,
212 MLX5E_PFLAG_TX_CQE_BASED_MODER,
213 MLX5E_PFLAG_RX_CQE_COMPRESS,
214 MLX5E_PFLAG_RX_STRIDING_RQ,
215 MLX5E_PFLAG_RX_NO_CSUM_COMPLETE,
216 MLX5E_PFLAG_XDP_TX_MPWQE,
217 MLX5E_NUM_PFLAGS, /* Keep last */
220 #define MLX5E_SET_PFLAG(params, pflag, enable) \
223 (params)->pflags |= BIT(pflag); \
225 (params)->pflags &= ~(BIT(pflag)); \
228 #define MLX5E_GET_PFLAG(params, pflag) (!!((params)->pflags & (BIT(pflag))))
230 #ifdef CONFIG_MLX5_CORE_EN_DCB
231 #define MLX5E_MAX_BW_ALLOC 100 /* Max percentage of BW allocation */
234 struct mlx5e_params {
237 u8 log_rq_mtu_frames;
240 bool rx_cqe_compress_def;
241 struct net_dim_cq_moder rx_cq_moderation;
242 struct net_dim_cq_moder tx_cq_moderation;
244 u8 tx_min_inline_mode;
245 bool vlan_strip_disable;
251 struct bpf_prog *xdp_prog;
256 #ifdef CONFIG_MLX5_CORE_EN_DCB
257 struct mlx5e_cee_config {
258 /* bw pct for priority group */
259 u8 pg_bw_pct[CEE_DCBX_MAX_PGS];
260 u8 prio_to_pg_map[CEE_DCBX_MAX_PRIO];
261 bool pfc_setting[CEE_DCBX_MAX_PRIO];
268 MLX5_DCB_CHG_NO_RESET,
272 enum mlx5_dcbx_oper_mode mode;
273 struct mlx5e_cee_config cee_cfg; /* pending configuration */
276 /* The only setting that cannot be read from FW */
277 u8 tc_tsa[IEEE_8021QAZ_MAX_TCS];
280 /* Buffer configuration */
286 struct mlx5e_dcbx_dp {
287 u8 dscp2prio[MLX5E_MAX_DSCP];
293 MLX5E_RQ_STATE_ENABLED,
295 MLX5E_RQ_STATE_NO_CSUM_COMPLETE,
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;
309 struct mlx5_core_dev *mdev;
310 struct mlx5_wq_ctrl wq_ctrl;
311 } ____cacheline_aligned_in_smp;
313 struct mlx5e_cq_decomp {
314 /* cqe decompression */
315 struct mlx5_cqe64 title;
316 struct mlx5_mini_cqe8 mini_arr[MLX5_MINI_CQE_ARRAY_SIZE];
320 } ____cacheline_aligned_in_smp;
322 struct mlx5e_tx_wqe_info {
329 enum mlx5e_dma_map_type {
330 MLX5E_DMA_MAP_SINGLE,
334 struct mlx5e_sq_dma {
337 enum mlx5e_dma_map_type type;
341 MLX5E_SQ_STATE_ENABLED,
342 MLX5E_SQ_STATE_RECOVERING,
343 MLX5E_SQ_STATE_IPSEC,
348 struct mlx5e_sq_wqe_info {
355 /* dirtied @completion */
358 struct net_dim dim; /* Adaptive Moderation */
361 u16 pc ____cacheline_aligned_in_smp;
367 struct mlx5_wq_cyc wq;
369 struct mlx5e_sq_stats *stats;
371 struct mlx5e_sq_dma *dma_fifo;
372 struct mlx5e_tx_wqe_info *wqe_info;
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 work_struct recover_work;
390 } ____cacheline_aligned_in_smp;
392 struct mlx5e_dma_info {
397 struct mlx5e_xdp_info {
398 struct xdp_frame *xdpf;
400 struct mlx5e_dma_info di;
403 struct mlx5e_xdp_info_fifo {
404 struct mlx5e_xdp_info *xi;
410 struct mlx5e_xdp_wqe_info {
415 struct mlx5e_xdp_mpwqe {
416 /* Current MPWQE session */
417 struct mlx5e_tx_wqe *wqe;
423 typedef bool (*mlx5e_fp_xmit_xdp_frame)(struct mlx5e_xdpsq*,
424 struct mlx5e_xdp_info*);
428 /* dirtied @completion */
434 u32 xdpi_fifo_pc ____cacheline_aligned_in_smp;
436 struct mlx5_wqe_ctrl_seg *doorbell_cseg;
437 struct mlx5e_xdp_mpwqe mpwqe;
442 struct mlx5_wq_cyc wq;
443 struct mlx5e_xdpsq_stats *stats;
444 mlx5e_fp_xmit_xdp_frame xmit_xdp_frame;
446 struct mlx5e_xdp_wqe_info *wqe_info;
447 struct mlx5e_xdp_info_fifo xdpi_fifo;
449 void __iomem *uar_map;
458 struct mlx5_wq_ctrl wq_ctrl;
459 struct mlx5e_channel *channel;
460 } ____cacheline_aligned_in_smp;
466 u16 pc ____cacheline_aligned_in_smp;
470 /* write@xmit, read@completion */
472 struct mlx5e_sq_wqe_info *ico_wqe;
476 struct mlx5_wq_cyc wq;
477 void __iomem *uar_map;
482 struct mlx5_wq_ctrl wq_ctrl;
483 struct mlx5e_channel *channel;
484 } ____cacheline_aligned_in_smp;
487 mlx5e_wqc_has_room_for(struct mlx5_wq_cyc *wq, u16 cc, u16 pc, u16 n)
489 return (mlx5_wq_cyc_ctr2ix(wq, cc - pc) >= n) || (cc == pc);
492 struct mlx5e_wqe_frag_info {
493 struct mlx5e_dma_info *di;
498 struct mlx5e_umr_dma_info {
499 struct mlx5e_dma_info dma_info[MLX5_MPWRQ_PAGES_PER_WQE];
502 struct mlx5e_mpw_info {
503 struct mlx5e_umr_dma_info umr;
504 u16 consumed_strides;
505 DECLARE_BITMAP(xdp_xmit_bitmap, MLX5_MPWRQ_PAGES_PER_WQE);
508 #define MLX5E_MAX_RX_FRAGS 4
510 /* a single cache unit is capable to serve one napi call (for non-striding rq)
511 * or a MPWQE (for striding rq).
513 #define MLX5E_CACHE_UNIT (MLX5_MPWRQ_PAGES_PER_WQE > NAPI_POLL_WEIGHT ? \
514 MLX5_MPWRQ_PAGES_PER_WQE : NAPI_POLL_WEIGHT)
515 #define MLX5E_CACHE_SIZE (4 * roundup_pow_of_two(MLX5E_CACHE_UNIT))
516 struct mlx5e_page_cache {
519 struct mlx5e_dma_info page_cache[MLX5E_CACHE_SIZE];
523 typedef void (*mlx5e_fp_handle_rx_cqe)(struct mlx5e_rq*, struct mlx5_cqe64*);
524 typedef struct sk_buff *
525 (*mlx5e_fp_skb_from_cqe_mpwrq)(struct mlx5e_rq *rq, struct mlx5e_mpw_info *wi,
526 u16 cqe_bcnt, u32 head_offset, u32 page_idx);
527 typedef struct sk_buff *
528 (*mlx5e_fp_skb_from_cqe)(struct mlx5e_rq *rq, struct mlx5_cqe64 *cqe,
529 struct mlx5e_wqe_frag_info *wi, u32 cqe_bcnt);
530 typedef bool (*mlx5e_fp_post_rx_wqes)(struct mlx5e_rq *rq);
531 typedef void (*mlx5e_fp_dealloc_wqe)(struct mlx5e_rq*, u16);
534 MLX5E_RQ_FLAG_XDP_XMIT = BIT(0),
537 struct mlx5e_rq_frag_info {
542 struct mlx5e_rq_frags_info {
543 struct mlx5e_rq_frag_info arr[MLX5E_MAX_RX_FRAGS];
553 struct mlx5_wq_cyc wq;
554 struct mlx5e_wqe_frag_info *frags;
555 struct mlx5e_dma_info *di;
556 struct mlx5e_rq_frags_info info;
557 mlx5e_fp_skb_from_cqe skb_from_cqe;
560 struct mlx5_wq_ll wq;
561 struct mlx5e_umr_wqe umr_wqe;
562 struct mlx5e_mpw_info *info;
563 mlx5e_fp_skb_from_cqe_mpwrq skb_from_cqe_mpwrq;
566 bool umr_in_progress;
571 u8 map_dir; /* dma map direction */
574 struct mlx5e_channel *channel;
576 struct net_device *netdev;
577 struct mlx5e_rq_stats *stats;
579 struct mlx5e_cq_decomp cqd;
580 struct mlx5e_page_cache page_cache;
581 struct hwtstamp_config *tstamp;
582 struct mlx5_clock *clock;
584 mlx5e_fp_handle_rx_cqe handle_rx_cqe;
585 mlx5e_fp_post_rx_wqes post_wqes;
586 mlx5e_fp_dealloc_wqe dealloc_wqe;
592 struct net_dim dim; /* Dynamic Interrupt Moderation */
595 struct bpf_prog *xdp_prog;
596 struct mlx5e_xdpsq xdpsq;
597 DECLARE_BITMAP(flags, 8);
598 struct page_pool *page_pool;
601 struct mlx5_wq_ctrl wq_ctrl;
605 struct mlx5_core_dev *mdev;
606 struct mlx5_core_mkey umr_mkey;
608 /* XDP read-mostly */
609 struct xdp_rxq_info xdp_rxq;
610 } ____cacheline_aligned_in_smp;
612 struct mlx5e_channel {
615 struct mlx5e_txqsq sq[MLX5E_MAX_NUM_TC];
616 struct mlx5e_icosq icosq; /* internal control operations */
618 struct napi_struct napi;
620 struct net_device *netdev;
625 struct mlx5e_xdpsq xdpsq;
627 /* data path - accessed per napi poll */
628 struct irq_desc *irq_desc;
629 struct mlx5e_ch_stats *stats;
632 struct mlx5e_priv *priv;
633 struct mlx5_core_dev *mdev;
634 struct hwtstamp_config *tstamp;
637 cpumask_var_t xps_cpumask;
640 struct mlx5e_channels {
641 struct mlx5e_channel **c;
643 struct mlx5e_params params;
646 struct mlx5e_channel_stats {
647 struct mlx5e_ch_stats ch;
648 struct mlx5e_sq_stats sq[MLX5E_MAX_NUM_TC];
649 struct mlx5e_rq_stats rq;
650 struct mlx5e_xdpsq_stats rq_xdpsq;
651 struct mlx5e_xdpsq_stats xdpsq;
652 } ____cacheline_aligned_in_smp;
656 MLX5E_STATE_DESTROYING,
657 MLX5E_STATE_XDP_TX_ENABLED,
667 struct mlx5e_rqt rqt;
668 struct list_head list;
676 struct mlx5e_rss_params {
677 u32 indirection_rqt[MLX5E_INDIR_RQT_SIZE];
678 u32 rx_hash_fields[MLX5E_NUM_INDIR_TIRS];
679 u8 toeplitz_hash_key[40];
683 struct mlx5e_modify_sq_param {
691 /* priv data path fields - start */
692 struct mlx5e_txqsq *txq2sq[MLX5E_MAX_NUM_CHANNELS * MLX5E_MAX_NUM_TC];
693 int channel_tc2txq[MLX5E_MAX_NUM_CHANNELS][MLX5E_MAX_NUM_TC];
694 #ifdef CONFIG_MLX5_CORE_EN_DCB
695 struct mlx5e_dcbx_dp dcbx_dp;
697 /* priv data path fields - end */
701 struct mutex state_lock; /* Protects Interface state */
702 struct mlx5e_rq drop_rq;
704 struct mlx5e_channels channels;
705 u32 tisn[MLX5E_MAX_NUM_TC];
706 struct mlx5e_rqt indir_rqt;
707 struct mlx5e_tir indir_tir[MLX5E_NUM_INDIR_TIRS];
708 struct mlx5e_tir inner_indir_tir[MLX5E_NUM_INDIR_TIRS];
709 struct mlx5e_tir direct_tir[MLX5E_MAX_NUM_CHANNELS];
710 struct mlx5e_rss_params rss_params;
711 u32 tx_rates[MLX5E_MAX_NUM_SQS];
713 struct mlx5e_flow_steering fs;
715 struct workqueue_struct *wq;
716 struct work_struct update_carrier_work;
717 struct work_struct set_rx_mode_work;
718 struct work_struct tx_timeout_work;
719 struct work_struct update_stats_work;
720 struct work_struct monitor_counters_work;
721 struct mlx5_nb monitor_counters_nb;
723 struct mlx5_core_dev *mdev;
724 struct net_device *netdev;
725 struct mlx5e_stats stats;
726 struct mlx5e_channel_stats channel_stats[MLX5E_MAX_NUM_CHANNELS];
728 struct hwtstamp_config tstamp;
730 u16 drop_rq_q_counter;
731 struct notifier_block events_nb;
733 #ifdef CONFIG_MLX5_CORE_EN_DCB
734 struct mlx5e_dcbx dcbx;
737 const struct mlx5e_profile *profile;
739 #ifdef CONFIG_MLX5_EN_IPSEC
740 struct mlx5e_ipsec *ipsec;
742 #ifdef CONFIG_MLX5_EN_TLS
743 struct mlx5e_tls *tls;
745 struct devlink_health_reporter *tx_reporter;
748 struct mlx5e_profile {
749 int (*init)(struct mlx5_core_dev *mdev,
750 struct net_device *netdev,
751 const struct mlx5e_profile *profile, void *ppriv);
752 void (*cleanup)(struct mlx5e_priv *priv);
753 int (*init_rx)(struct mlx5e_priv *priv);
754 void (*cleanup_rx)(struct mlx5e_priv *priv);
755 int (*init_tx)(struct mlx5e_priv *priv);
756 void (*cleanup_tx)(struct mlx5e_priv *priv);
757 void (*enable)(struct mlx5e_priv *priv);
758 void (*disable)(struct mlx5e_priv *priv);
759 void (*update_stats)(struct mlx5e_priv *priv);
760 void (*update_carrier)(struct mlx5e_priv *priv);
762 mlx5e_fp_handle_rx_cqe handle_rx_cqe;
763 mlx5e_fp_handle_rx_cqe handle_rx_cqe_mpwqe;
768 void mlx5e_build_ptys2ethtool_map(void);
770 u16 mlx5e_select_queue(struct net_device *dev, struct sk_buff *skb,
771 struct net_device *sb_dev);
772 netdev_tx_t mlx5e_xmit(struct sk_buff *skb, struct net_device *dev);
773 netdev_tx_t mlx5e_sq_xmit(struct mlx5e_txqsq *sq, struct sk_buff *skb,
774 struct mlx5e_tx_wqe *wqe, u16 pi, bool xmit_more);
776 void mlx5e_completion_event(struct mlx5_core_cq *mcq);
777 void mlx5e_cq_error_event(struct mlx5_core_cq *mcq, enum mlx5_event event);
778 int mlx5e_napi_poll(struct napi_struct *napi, int budget);
779 bool mlx5e_poll_tx_cq(struct mlx5e_cq *cq, int napi_budget);
780 int mlx5e_poll_rx_cq(struct mlx5e_cq *cq, int budget);
781 void mlx5e_free_txqsq_descs(struct mlx5e_txqsq *sq);
783 bool mlx5e_check_fragmented_striding_rq_cap(struct mlx5_core_dev *mdev);
784 bool mlx5e_striding_rq_possible(struct mlx5_core_dev *mdev,
785 struct mlx5e_params *params);
787 void mlx5e_page_dma_unmap(struct mlx5e_rq *rq, struct mlx5e_dma_info *dma_info);
788 void mlx5e_page_release(struct mlx5e_rq *rq, struct mlx5e_dma_info *dma_info,
790 void mlx5e_handle_rx_cqe(struct mlx5e_rq *rq, struct mlx5_cqe64 *cqe);
791 void mlx5e_handle_rx_cqe_mpwrq(struct mlx5e_rq *rq, struct mlx5_cqe64 *cqe);
792 bool mlx5e_post_rx_wqes(struct mlx5e_rq *rq);
793 bool mlx5e_post_rx_mpwqes(struct mlx5e_rq *rq);
794 void mlx5e_dealloc_rx_wqe(struct mlx5e_rq *rq, u16 ix);
795 void mlx5e_dealloc_rx_mpwqe(struct mlx5e_rq *rq, u16 ix);
797 mlx5e_skb_from_cqe_mpwrq_linear(struct mlx5e_rq *rq, struct mlx5e_mpw_info *wi,
798 u16 cqe_bcnt, u32 head_offset, u32 page_idx);
800 mlx5e_skb_from_cqe_mpwrq_nonlinear(struct mlx5e_rq *rq, struct mlx5e_mpw_info *wi,
801 u16 cqe_bcnt, u32 head_offset, u32 page_idx);
803 mlx5e_skb_from_cqe_linear(struct mlx5e_rq *rq, struct mlx5_cqe64 *cqe,
804 struct mlx5e_wqe_frag_info *wi, u32 cqe_bcnt);
806 mlx5e_skb_from_cqe_nonlinear(struct mlx5e_rq *rq, struct mlx5_cqe64 *cqe,
807 struct mlx5e_wqe_frag_info *wi, u32 cqe_bcnt);
809 void mlx5e_update_stats(struct mlx5e_priv *priv);
810 void mlx5e_get_stats(struct net_device *dev, struct rtnl_link_stats64 *stats);
811 void mlx5e_fold_sw_stats64(struct mlx5e_priv *priv, struct rtnl_link_stats64 *s);
813 void mlx5e_init_l2_addr(struct mlx5e_priv *priv);
814 int mlx5e_self_test_num(struct mlx5e_priv *priv);
815 void mlx5e_self_test(struct net_device *ndev, struct ethtool_test *etest,
817 void mlx5e_set_rx_mode_work(struct work_struct *work);
819 int mlx5e_hwstamp_set(struct mlx5e_priv *priv, struct ifreq *ifr);
820 int mlx5e_hwstamp_get(struct mlx5e_priv *priv, struct ifreq *ifr);
821 int mlx5e_modify_rx_cqe_compression_locked(struct mlx5e_priv *priv, bool val);
823 int mlx5e_vlan_rx_add_vid(struct net_device *dev, __always_unused __be16 proto,
825 int mlx5e_vlan_rx_kill_vid(struct net_device *dev, __always_unused __be16 proto,
827 void mlx5e_timestamp_init(struct mlx5e_priv *priv);
829 struct mlx5e_redirect_rqt_param {
832 u32 rqn; /* Direct RQN (Non-RSS) */
835 struct mlx5e_channels *channels;
836 } rss; /* RSS data */
840 int mlx5e_redirect_rqt(struct mlx5e_priv *priv, u32 rqtn, int sz,
841 struct mlx5e_redirect_rqt_param rrp);
842 void mlx5e_build_indir_tir_ctx_hash(struct mlx5e_rss_params *rss_params,
843 const struct mlx5e_tirc_config *ttconfig,
844 void *tirc, bool inner);
845 void mlx5e_modify_tirs_hash(struct mlx5e_priv *priv, void *in, int inlen);
846 struct mlx5e_tirc_config mlx5e_tirc_get_default_config(enum mlx5e_traffic_types tt);
848 int mlx5e_open_locked(struct net_device *netdev);
849 int mlx5e_close_locked(struct net_device *netdev);
851 int mlx5e_open_channels(struct mlx5e_priv *priv,
852 struct mlx5e_channels *chs);
853 void mlx5e_close_channels(struct mlx5e_channels *chs);
855 /* Function pointer to be used to modify WH settings while
858 typedef int (*mlx5e_fp_hw_modify)(struct mlx5e_priv *priv);
859 int mlx5e_safe_reopen_channels(struct mlx5e_priv *priv);
860 int mlx5e_safe_switch_channels(struct mlx5e_priv *priv,
861 struct mlx5e_channels *new_chs,
862 mlx5e_fp_hw_modify hw_modify);
863 void mlx5e_activate_priv_channels(struct mlx5e_priv *priv);
864 void mlx5e_deactivate_priv_channels(struct mlx5e_priv *priv);
866 void mlx5e_build_default_indir_rqt(u32 *indirection_rqt, int len,
868 void mlx5e_set_tx_cq_mode_params(struct mlx5e_params *params,
870 void mlx5e_set_rx_cq_mode_params(struct mlx5e_params *params,
872 void mlx5e_set_rq_type(struct mlx5_core_dev *mdev, struct mlx5e_params *params);
873 void mlx5e_init_rq_type_params(struct mlx5_core_dev *mdev,
874 struct mlx5e_params *params);
876 int mlx5e_modify_sq(struct mlx5_core_dev *mdev, u32 sqn,
877 struct mlx5e_modify_sq_param *p);
878 void mlx5e_activate_txqsq(struct mlx5e_txqsq *sq);
879 void mlx5e_tx_disable_queue(struct netdev_queue *txq);
881 static inline bool mlx5e_tunnel_inner_ft_supported(struct mlx5_core_dev *mdev)
883 return (MLX5_CAP_ETH(mdev, tunnel_stateless_gre) &&
884 MLX5_CAP_FLOWTABLE_NIC_RX(mdev, ft_field_support.inner_ip_version));
887 static inline bool mlx5_tx_swp_supported(struct mlx5_core_dev *mdev)
889 return MLX5_CAP_ETH(mdev, swp) &&
890 MLX5_CAP_ETH(mdev, swp_csum) && MLX5_CAP_ETH(mdev, swp_lso);
893 struct mlx5e_swp_spec {
902 mlx5e_set_eseg_swp(struct sk_buff *skb, struct mlx5_wqe_eth_seg *eseg,
903 struct mlx5e_swp_spec *swp_spec)
905 /* SWP offsets are in 2-bytes words */
906 eseg->swp_outer_l3_offset = skb_network_offset(skb) / 2;
907 if (swp_spec->l3_proto == htons(ETH_P_IPV6))
908 eseg->swp_flags |= MLX5_ETH_WQE_SWP_OUTER_L3_IPV6;
909 if (swp_spec->l4_proto) {
910 eseg->swp_outer_l4_offset = skb_transport_offset(skb) / 2;
911 if (swp_spec->l4_proto == IPPROTO_UDP)
912 eseg->swp_flags |= MLX5_ETH_WQE_SWP_OUTER_L4_UDP;
915 if (swp_spec->is_tun) {
916 eseg->swp_inner_l3_offset = skb_inner_network_offset(skb) / 2;
917 if (swp_spec->tun_l3_proto == htons(ETH_P_IPV6))
918 eseg->swp_flags |= MLX5_ETH_WQE_SWP_INNER_L3_IPV6;
919 } else { /* typically for ipsec when xfrm mode != XFRM_MODE_TUNNEL */
920 eseg->swp_inner_l3_offset = skb_network_offset(skb) / 2;
921 if (swp_spec->l3_proto == htons(ETH_P_IPV6))
922 eseg->swp_flags |= MLX5_ETH_WQE_SWP_INNER_L3_IPV6;
924 switch (swp_spec->tun_l4_proto) {
926 eseg->swp_flags |= MLX5_ETH_WQE_SWP_INNER_L4_UDP;
929 eseg->swp_inner_l4_offset = skb_inner_transport_offset(skb) / 2;
934 static inline void mlx5e_sq_fetch_wqe(struct mlx5e_txqsq *sq,
935 struct mlx5e_tx_wqe **wqe,
938 struct mlx5_wq_cyc *wq = &sq->wq;
940 *pi = mlx5_wq_cyc_ctr2ix(wq, sq->pc);
941 *wqe = mlx5_wq_cyc_get_wqe(wq, *pi);
942 memset(*wqe, 0, sizeof(**wqe));
946 struct mlx5e_tx_wqe *mlx5e_post_nop(struct mlx5_wq_cyc *wq, u32 sqn, u16 *pc)
948 u16 pi = mlx5_wq_cyc_ctr2ix(wq, *pc);
949 struct mlx5e_tx_wqe *wqe = mlx5_wq_cyc_get_wqe(wq, pi);
950 struct mlx5_wqe_ctrl_seg *cseg = &wqe->ctrl;
952 memset(cseg, 0, sizeof(*cseg));
954 cseg->opmod_idx_opcode = cpu_to_be32((*pc << 8) | MLX5_OPCODE_NOP);
955 cseg->qpn_ds = cpu_to_be32((sqn << 8) | 0x01);
963 void mlx5e_notify_hw(struct mlx5_wq_cyc *wq, u16 pc,
964 void __iomem *uar_map,
965 struct mlx5_wqe_ctrl_seg *ctrl)
967 ctrl->fm_ce_se = MLX5_WQE_CTRL_CQ_UPDATE;
968 /* ensure wqe is visible to device before updating doorbell record */
971 *wq->db = cpu_to_be32(pc);
973 /* ensure doorbell record is visible to device before ringing the
978 mlx5_write64((__be32 *)ctrl, uar_map);
981 static inline void mlx5e_cq_arm(struct mlx5e_cq *cq)
983 struct mlx5_core_cq *mcq;
986 mlx5_cq_arm(mcq, MLX5_CQ_DB_REQ_NOT, mcq->uar->map, cq->wq.cc);
989 extern const struct ethtool_ops mlx5e_ethtool_ops;
990 #ifdef CONFIG_MLX5_CORE_EN_DCB
991 extern const struct dcbnl_rtnl_ops mlx5e_dcbnl_ops;
992 int mlx5e_dcbnl_ieee_setets_core(struct mlx5e_priv *priv, struct ieee_ets *ets);
993 void mlx5e_dcbnl_initialize(struct mlx5e_priv *priv);
994 void mlx5e_dcbnl_init_app(struct mlx5e_priv *priv);
995 void mlx5e_dcbnl_delete_app(struct mlx5e_priv *priv);
998 int mlx5e_create_tir(struct mlx5_core_dev *mdev,
999 struct mlx5e_tir *tir, u32 *in, int inlen);
1000 void mlx5e_destroy_tir(struct mlx5_core_dev *mdev,
1001 struct mlx5e_tir *tir);
1002 int mlx5e_create_mdev_resources(struct mlx5_core_dev *mdev);
1003 void mlx5e_destroy_mdev_resources(struct mlx5_core_dev *mdev);
1004 int mlx5e_refresh_tirs(struct mlx5e_priv *priv, bool enable_uc_lb);
1006 /* common netdev helpers */
1007 void mlx5e_create_q_counters(struct mlx5e_priv *priv);
1008 void mlx5e_destroy_q_counters(struct mlx5e_priv *priv);
1009 int mlx5e_open_drop_rq(struct mlx5e_priv *priv,
1010 struct mlx5e_rq *drop_rq);
1011 void mlx5e_close_drop_rq(struct mlx5e_rq *drop_rq);
1013 int mlx5e_create_indirect_rqt(struct mlx5e_priv *priv);
1015 int mlx5e_create_indirect_tirs(struct mlx5e_priv *priv, bool inner_ttc);
1016 void mlx5e_destroy_indirect_tirs(struct mlx5e_priv *priv, bool inner_ttc);
1018 int mlx5e_create_direct_rqts(struct mlx5e_priv *priv);
1019 void mlx5e_destroy_direct_rqts(struct mlx5e_priv *priv);
1020 int mlx5e_create_direct_tirs(struct mlx5e_priv *priv);
1021 void mlx5e_destroy_direct_tirs(struct mlx5e_priv *priv);
1022 void mlx5e_destroy_rqt(struct mlx5e_priv *priv, struct mlx5e_rqt *rqt);
1024 int mlx5e_create_tis(struct mlx5_core_dev *mdev, int tc,
1025 u32 underlay_qpn, u32 *tisn);
1026 void mlx5e_destroy_tis(struct mlx5_core_dev *mdev, u32 tisn);
1028 int mlx5e_create_tises(struct mlx5e_priv *priv);
1029 void mlx5e_update_carrier(struct mlx5e_priv *priv);
1030 int mlx5e_close(struct net_device *netdev);
1031 int mlx5e_open(struct net_device *netdev);
1032 void mlx5e_update_ndo_stats(struct mlx5e_priv *priv);
1034 void mlx5e_queue_update_stats(struct mlx5e_priv *priv);
1035 int mlx5e_bits_invert(unsigned long a, int size);
1037 typedef int (*change_hw_mtu_cb)(struct mlx5e_priv *priv);
1038 int mlx5e_set_dev_port_mtu(struct mlx5e_priv *priv);
1039 int mlx5e_change_mtu(struct net_device *netdev, int new_mtu,
1040 change_hw_mtu_cb set_mtu_cb);
1042 /* ethtool helpers */
1043 void mlx5e_ethtool_get_drvinfo(struct mlx5e_priv *priv,
1044 struct ethtool_drvinfo *drvinfo);
1045 void mlx5e_ethtool_get_strings(struct mlx5e_priv *priv,
1046 uint32_t stringset, uint8_t *data);
1047 int mlx5e_ethtool_get_sset_count(struct mlx5e_priv *priv, int sset);
1048 void mlx5e_ethtool_get_ethtool_stats(struct mlx5e_priv *priv,
1049 struct ethtool_stats *stats, u64 *data);
1050 void mlx5e_ethtool_get_ringparam(struct mlx5e_priv *priv,
1051 struct ethtool_ringparam *param);
1052 int mlx5e_ethtool_set_ringparam(struct mlx5e_priv *priv,
1053 struct ethtool_ringparam *param);
1054 void mlx5e_ethtool_get_channels(struct mlx5e_priv *priv,
1055 struct ethtool_channels *ch);
1056 int mlx5e_ethtool_set_channels(struct mlx5e_priv *priv,
1057 struct ethtool_channels *ch);
1058 int mlx5e_ethtool_get_coalesce(struct mlx5e_priv *priv,
1059 struct ethtool_coalesce *coal);
1060 int mlx5e_ethtool_set_coalesce(struct mlx5e_priv *priv,
1061 struct ethtool_coalesce *coal);
1062 int mlx5e_ethtool_get_link_ksettings(struct mlx5e_priv *priv,
1063 struct ethtool_link_ksettings *link_ksettings);
1064 int mlx5e_ethtool_set_link_ksettings(struct mlx5e_priv *priv,
1065 const struct ethtool_link_ksettings *link_ksettings);
1066 u32 mlx5e_ethtool_get_rxfh_key_size(struct mlx5e_priv *priv);
1067 u32 mlx5e_ethtool_get_rxfh_indir_size(struct mlx5e_priv *priv);
1068 int mlx5e_ethtool_get_ts_info(struct mlx5e_priv *priv,
1069 struct ethtool_ts_info *info);
1070 int mlx5e_ethtool_flash_device(struct mlx5e_priv *priv,
1071 struct ethtool_flash *flash);
1072 void mlx5e_ethtool_get_pauseparam(struct mlx5e_priv *priv,
1073 struct ethtool_pauseparam *pauseparam);
1074 int mlx5e_ethtool_set_pauseparam(struct mlx5e_priv *priv,
1075 struct ethtool_pauseparam *pauseparam);
1077 /* mlx5e generic netdev management API */
1078 int mlx5e_netdev_init(struct net_device *netdev,
1079 struct mlx5e_priv *priv,
1080 struct mlx5_core_dev *mdev,
1081 const struct mlx5e_profile *profile,
1083 void mlx5e_netdev_cleanup(struct net_device *netdev, struct mlx5e_priv *priv);
1085 mlx5e_create_netdev(struct mlx5_core_dev *mdev, const struct mlx5e_profile *profile,
1086 int nch, void *ppriv);
1087 int mlx5e_attach_netdev(struct mlx5e_priv *priv);
1088 void mlx5e_detach_netdev(struct mlx5e_priv *priv);
1089 void mlx5e_destroy_netdev(struct mlx5e_priv *priv);
1090 void mlx5e_set_netdev_mtu_boundaries(struct mlx5e_priv *priv);
1091 void mlx5e_build_nic_params(struct mlx5_core_dev *mdev,
1092 struct mlx5e_rss_params *rss_params,
1093 struct mlx5e_params *params,
1094 u16 max_channels, u16 mtu);
1095 void mlx5e_build_rq_params(struct mlx5_core_dev *mdev,
1096 struct mlx5e_params *params);
1097 void mlx5e_build_rss_params(struct mlx5e_rss_params *rss_params,
1099 u8 mlx5e_params_calculate_tx_min_inline(struct mlx5_core_dev *mdev);
1100 void mlx5e_rx_dim_work(struct work_struct *work);
1101 void mlx5e_tx_dim_work(struct work_struct *work);
1103 void mlx5e_add_vxlan_port(struct net_device *netdev, struct udp_tunnel_info *ti);
1104 void mlx5e_del_vxlan_port(struct net_device *netdev, struct udp_tunnel_info *ti);
1105 netdev_features_t mlx5e_features_check(struct sk_buff *skb,
1106 struct net_device *netdev,
1107 netdev_features_t features);
1108 #ifdef CONFIG_MLX5_ESWITCH
1109 int mlx5e_set_vf_mac(struct net_device *dev, int vf, u8 *mac);
1110 int mlx5e_set_vf_rate(struct net_device *dev, int vf, int min_tx_rate, int max_tx_rate);
1111 int mlx5e_get_vf_config(struct net_device *dev, int vf, struct ifla_vf_info *ivi);
1112 int mlx5e_get_vf_stats(struct net_device *dev, int vf, struct ifla_vf_stats *vf_stats);
1114 #endif /* __MLX5_EN_H__ */