/* * Copyright (c) 2015-2016, Mellanox Technologies. All rights reserved. * * This software is available to you under a choice of one of two * licenses. You may choose to be licensed under the terms of the GNU * General Public License (GPL) Version 2, available from the file * COPYING in the main directory of this source tree, or the * OpenIB.org BSD license below: * * Redistribution and use in source and binary forms, with or * without modification, are permitted provided that the following * conditions are met: * * - Redistributions of source code must retain the above * copyright notice, this list of conditions and the following * disclaimer. * * - Redistributions in binary form must reproduce the above * copyright notice, this list of conditions and the following * disclaimer in the documentation and/or other materials * provided with the distribution. * * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE * SOFTWARE. */ #ifndef __MLX5_EN_H__ #define __MLX5_EN_H__ #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include "wq.h" #include "mlx5_core.h" #include "en_stats.h" #include "en/fs.h" extern const struct net_device_ops mlx5e_netdev_ops; struct page_pool; #define MLX5E_METADATA_ETHER_TYPE (0x8CE4) #define MLX5E_METADATA_ETHER_LEN 8 #define MLX5_SET_CFG(p, f, v) MLX5_SET(create_flow_group_in, p, f, v) #define MLX5E_ETH_HARD_MTU (ETH_HLEN + VLAN_HLEN + ETH_FCS_LEN) #define MLX5E_HW2SW_MTU(params, hwmtu) ((hwmtu) - ((params)->hard_mtu)) #define MLX5E_SW2HW_MTU(params, swmtu) ((swmtu) + ((params)->hard_mtu)) #define MLX5E_MAX_PRIORITY 8 #define MLX5E_MAX_DSCP 64 #define MLX5E_MAX_NUM_TC 8 #define MLX5_RX_HEADROOM NET_SKB_PAD #define MLX5_SKB_FRAG_SZ(len) (SKB_DATA_ALIGN(len) + \ SKB_DATA_ALIGN(sizeof(struct skb_shared_info))) #define MLX5_MPWRQ_MIN_LOG_STRIDE_SZ(mdev) \ (6 + MLX5_CAP_GEN(mdev, cache_line_128byte)) /* HW restriction */ #define MLX5_MPWRQ_LOG_STRIDE_SZ(mdev, req) \ max_t(u32, MLX5_MPWRQ_MIN_LOG_STRIDE_SZ(mdev), req) #define MLX5_MPWRQ_DEF_LOG_STRIDE_SZ(mdev) MLX5_MPWRQ_LOG_STRIDE_SZ(mdev, 6) #define MLX5_MPWRQ_CQE_CMPRS_LOG_STRIDE_SZ(mdev) MLX5_MPWRQ_LOG_STRIDE_SZ(mdev, 8) #define MLX5E_MPWQE_STRIDE_SZ(mdev, cqe_cmprs) \ (cqe_cmprs ? MLX5_MPWRQ_CQE_CMPRS_LOG_STRIDE_SZ(mdev) : \ MLX5_MPWRQ_DEF_LOG_STRIDE_SZ(mdev)) #define MLX5_MPWRQ_LOG_WQE_SZ 18 #define MLX5_MPWRQ_WQE_PAGE_ORDER (MLX5_MPWRQ_LOG_WQE_SZ - PAGE_SHIFT > 0 ? \ MLX5_MPWRQ_LOG_WQE_SZ - PAGE_SHIFT : 0) #define MLX5_MPWRQ_PAGES_PER_WQE BIT(MLX5_MPWRQ_WQE_PAGE_ORDER) #define MLX5_MTT_OCTW(npages) (ALIGN(npages, 8) / 2) #define MLX5E_REQUIRED_WQE_MTTS (ALIGN(MLX5_MPWRQ_PAGES_PER_WQE, 8)) #define MLX5E_LOG_ALIGNED_MPWQE_PPW (ilog2(MLX5E_REQUIRED_WQE_MTTS)) #define MLX5E_REQUIRED_MTTS(wqes) (wqes * MLX5E_REQUIRED_WQE_MTTS) #define MLX5E_MAX_RQ_NUM_MTTS \ ((1 << 16) * 2) /* So that MLX5_MTT_OCTW(num_mtts) fits into u16 */ #define MLX5E_ORDER2_MAX_PACKET_MTU (order_base_2(10 * 1024)) #define MLX5E_PARAMS_MAXIMUM_LOG_RQ_SIZE_MPW \ (ilog2(MLX5E_MAX_RQ_NUM_MTTS / MLX5E_REQUIRED_WQE_MTTS)) #define MLX5E_LOG_MAX_RQ_NUM_PACKETS_MPW \ (MLX5E_PARAMS_MAXIMUM_LOG_RQ_SIZE_MPW + \ (MLX5_MPWRQ_LOG_WQE_SZ - MLX5E_ORDER2_MAX_PACKET_MTU)) #define MLX5E_MIN_SKB_FRAG_SZ (MLX5_SKB_FRAG_SZ(MLX5_RX_HEADROOM)) #define MLX5E_LOG_MAX_RX_WQE_BULK \ (ilog2(PAGE_SIZE / roundup_pow_of_two(MLX5E_MIN_SKB_FRAG_SZ))) #define MLX5E_PARAMS_MINIMUM_LOG_SQ_SIZE 0x6 #define MLX5E_PARAMS_DEFAULT_LOG_SQ_SIZE 0xa #define MLX5E_PARAMS_MAXIMUM_LOG_SQ_SIZE 0xd #define MLX5E_PARAMS_MINIMUM_LOG_RQ_SIZE (1 + MLX5E_LOG_MAX_RX_WQE_BULK) #define MLX5E_PARAMS_DEFAULT_LOG_RQ_SIZE 0xa #define MLX5E_PARAMS_MAXIMUM_LOG_RQ_SIZE min_t(u8, 0xd, \ MLX5E_LOG_MAX_RQ_NUM_PACKETS_MPW) #define MLX5E_PARAMS_MINIMUM_LOG_RQ_SIZE_MPW 0x2 #define MLX5E_RX_MAX_HEAD (256) #define MLX5E_PARAMS_DEFAULT_LRO_WQE_SZ (64 * 1024) #define MLX5E_DEFAULT_LRO_TIMEOUT 32 #define MLX5E_LRO_TIMEOUT_ARR_SIZE 4 #define MLX5E_PARAMS_DEFAULT_RX_CQ_MODERATION_USEC 0x10 #define MLX5E_PARAMS_DEFAULT_RX_CQ_MODERATION_USEC_FROM_CQE 0x3 #define MLX5E_PARAMS_DEFAULT_RX_CQ_MODERATION_PKTS 0x20 #define MLX5E_PARAMS_DEFAULT_TX_CQ_MODERATION_USEC 0x10 #define MLX5E_PARAMS_DEFAULT_TX_CQ_MODERATION_USEC_FROM_CQE 0x10 #define MLX5E_PARAMS_DEFAULT_TX_CQ_MODERATION_PKTS 0x20 #define MLX5E_PARAMS_DEFAULT_MIN_RX_WQES 0x80 #define MLX5E_PARAMS_DEFAULT_MIN_RX_WQES_MPW 0x2 #define MLX5E_LOG_INDIR_RQT_SIZE 0x7 #define MLX5E_INDIR_RQT_SIZE BIT(MLX5E_LOG_INDIR_RQT_SIZE) #define MLX5E_MIN_NUM_CHANNELS 0x1 #define MLX5E_MAX_NUM_CHANNELS (MLX5E_INDIR_RQT_SIZE >> 1) #define MLX5E_MAX_NUM_SQS (MLX5E_MAX_NUM_CHANNELS * MLX5E_MAX_NUM_TC) #define MLX5E_TX_CQ_POLL_BUDGET 128 #define MLX5E_SQ_RECOVER_MIN_INTERVAL 500 /* msecs */ #define MLX5E_UMR_WQE_INLINE_SZ \ (sizeof(struct mlx5e_umr_wqe) + \ ALIGN(MLX5_MPWRQ_PAGES_PER_WQE * sizeof(struct mlx5_mtt), \ MLX5_UMR_MTT_ALIGNMENT)) #define MLX5E_UMR_WQEBBS \ (DIV_ROUND_UP(MLX5E_UMR_WQE_INLINE_SZ, MLX5_SEND_WQE_BB)) #define MLX5E_MSG_LEVEL NETIF_MSG_LINK #define mlx5e_dbg(mlevel, priv, format, ...) \ do { \ if (NETIF_MSG_##mlevel & (priv)->msglevel) \ netdev_warn(priv->netdev, format, \ ##__VA_ARGS__); \ } while (0) static inline u16 mlx5_min_rx_wqes(int wq_type, u32 wq_size) { switch (wq_type) { case MLX5_WQ_TYPE_LINKED_LIST_STRIDING_RQ: return min_t(u16, MLX5E_PARAMS_DEFAULT_MIN_RX_WQES_MPW, wq_size / 2); default: return min_t(u16, MLX5E_PARAMS_DEFAULT_MIN_RX_WQES, wq_size / 2); } } /* Use this function to get max num channels (rxqs/txqs) only to create netdev */ static inline int mlx5e_get_max_num_channels(struct mlx5_core_dev *mdev) { return is_kdump_kernel() ? MLX5E_MIN_NUM_CHANNELS : min_t(int, mdev->priv.eq_table.num_comp_vectors, MLX5E_MAX_NUM_CHANNELS); } /* Use this function to get max num channels after netdev was created */ static inline int mlx5e_get_netdev_max_channels(struct net_device *netdev) { return min_t(unsigned int, netdev->num_rx_queues, netdev->num_tx_queues); } struct mlx5e_tx_wqe { struct mlx5_wqe_ctrl_seg ctrl; struct mlx5_wqe_eth_seg eth; struct mlx5_wqe_data_seg data[0]; }; struct mlx5e_rx_wqe_ll { struct mlx5_wqe_srq_next_seg next; struct mlx5_wqe_data_seg data[0]; }; struct mlx5e_rx_wqe_cyc { struct mlx5_wqe_data_seg data[0]; }; struct mlx5e_umr_wqe { struct mlx5_wqe_ctrl_seg ctrl; struct mlx5_wqe_umr_ctrl_seg uctrl; struct mlx5_mkey_seg mkc; struct mlx5_mtt inline_mtts[0]; }; extern const char mlx5e_self_tests[][ETH_GSTRING_LEN]; enum mlx5e_priv_flag { MLX5E_PFLAG_RX_CQE_BASED_MODER, MLX5E_PFLAG_TX_CQE_BASED_MODER, MLX5E_PFLAG_RX_CQE_COMPRESS, MLX5E_PFLAG_RX_STRIDING_RQ, MLX5E_PFLAG_RX_NO_CSUM_COMPLETE, MLX5E_NUM_PFLAGS, /* Keep last */ }; #define MLX5E_SET_PFLAG(params, pflag, enable) \ do { \ if (enable) \ (params)->pflags |= BIT(pflag); \ else \ (params)->pflags &= ~(BIT(pflag)); \ } while (0) #define MLX5E_GET_PFLAG(params, pflag) (!!((params)->pflags & (BIT(pflag)))) #ifdef CONFIG_MLX5_CORE_EN_DCB #define MLX5E_MAX_BW_ALLOC 100 /* Max percentage of BW allocation */ #endif struct mlx5e_params { u8 log_sq_size; u8 rq_wq_type; u8 log_rq_mtu_frames; u16 num_channels; u8 num_tc; bool rx_cqe_compress_def; struct net_dim_cq_moder rx_cq_moderation; struct net_dim_cq_moder tx_cq_moderation; bool lro_en; u32 lro_wqe_sz; u8 tx_min_inline_mode; bool vlan_strip_disable; bool scatter_fcs_en; bool rx_dim_enabled; bool tx_dim_enabled; u32 lro_timeout; u32 pflags; struct bpf_prog *xdp_prog; unsigned int sw_mtu; int hard_mtu; }; #ifdef CONFIG_MLX5_CORE_EN_DCB struct mlx5e_cee_config { /* bw pct for priority group */ u8 pg_bw_pct[CEE_DCBX_MAX_PGS]; u8 prio_to_pg_map[CEE_DCBX_MAX_PRIO]; bool pfc_setting[CEE_DCBX_MAX_PRIO]; bool pfc_enable; }; enum { MLX5_DCB_CHG_RESET, MLX5_DCB_NO_CHG, MLX5_DCB_CHG_NO_RESET, }; struct mlx5e_dcbx { enum mlx5_dcbx_oper_mode mode; struct mlx5e_cee_config cee_cfg; /* pending configuration */ u8 dscp_app_cnt; /* The only setting that cannot be read from FW */ u8 tc_tsa[IEEE_8021QAZ_MAX_TCS]; u8 cap; /* Buffer configuration */ bool manual_buffer; u32 cable_len; u32 xoff; }; struct mlx5e_dcbx_dp { u8 dscp2prio[MLX5E_MAX_DSCP]; u8 trust_state; }; #endif enum { MLX5E_RQ_STATE_ENABLED, MLX5E_RQ_STATE_AM, MLX5E_RQ_STATE_NO_CSUM_COMPLETE, }; struct mlx5e_cq { /* data path - accessed per cqe */ struct mlx5_cqwq wq; /* data path - accessed per napi poll */ u16 event_ctr; struct napi_struct *napi; struct mlx5_core_cq mcq; struct mlx5e_channel *channel; /* cqe decompression */ struct mlx5_cqe64 title; struct mlx5_mini_cqe8 mini_arr[MLX5_MINI_CQE_ARRAY_SIZE]; u8 mini_arr_idx; u16 decmprs_left; u16 decmprs_wqe_counter; /* control */ struct mlx5_core_dev *mdev; struct mlx5_wq_ctrl wq_ctrl; } ____cacheline_aligned_in_smp; struct mlx5e_tx_wqe_info { struct sk_buff *skb; u32 num_bytes; u8 num_wqebbs; u8 num_dma; }; enum mlx5e_dma_map_type { MLX5E_DMA_MAP_SINGLE, MLX5E_DMA_MAP_PAGE }; struct mlx5e_sq_dma { dma_addr_t addr; u32 size; enum mlx5e_dma_map_type type; }; enum { MLX5E_SQ_STATE_ENABLED, MLX5E_SQ_STATE_RECOVERING, MLX5E_SQ_STATE_IPSEC, MLX5E_SQ_STATE_AM, MLX5E_SQ_STATE_TLS, MLX5E_SQ_STATE_REDIRECT, }; struct mlx5e_sq_wqe_info { u8 opcode; }; struct mlx5e_txqsq { /* data path */ /* dirtied @completion */ u16 cc; u32 dma_fifo_cc; struct net_dim dim; /* Adaptive Moderation */ /* dirtied @xmit */ u16 pc ____cacheline_aligned_in_smp; u32 dma_fifo_pc; struct mlx5e_cq cq; /* read only */ struct mlx5_wq_cyc wq; u32 dma_fifo_mask; struct mlx5e_sq_stats *stats; struct { struct mlx5e_sq_dma *dma_fifo; struct mlx5e_tx_wqe_info *wqe_info; } db; void __iomem *uar_map; struct netdev_queue *txq; u32 sqn; u8 min_inline_mode; struct device *pdev; __be32 mkey_be; unsigned long state; struct hwtstamp_config *tstamp; struct mlx5_clock *clock; /* control path */ struct mlx5_wq_ctrl wq_ctrl; struct mlx5e_channel *channel; int txq_ix; u32 rate_limit; struct mlx5e_txqsq_recover { struct work_struct recover_work; u64 last_recover; } recover; } ____cacheline_aligned_in_smp; struct mlx5e_dma_info { struct page *page; dma_addr_t addr; }; struct mlx5e_xdp_info { struct xdp_frame *xdpf; dma_addr_t dma_addr; struct mlx5e_dma_info di; }; struct mlx5e_xdpsq { /* data path */ /* dirtied @completion */ u16 cc; bool redirect_flush; /* dirtied @xmit */ u16 pc ____cacheline_aligned_in_smp; bool doorbell; struct mlx5e_cq cq; /* read only */ struct mlx5_wq_cyc wq; struct mlx5e_xdpsq_stats *stats; struct { struct mlx5e_xdp_info *xdpi; } db; void __iomem *uar_map; u32 sqn; struct device *pdev; __be32 mkey_be; u8 min_inline_mode; unsigned long state; unsigned int hw_mtu; /* control path */ struct mlx5_wq_ctrl wq_ctrl; struct mlx5e_channel *channel; } ____cacheline_aligned_in_smp; struct mlx5e_icosq { /* data path */ /* dirtied @xmit */ u16 pc ____cacheline_aligned_in_smp; struct mlx5e_cq cq; /* write@xmit, read@completion */ struct { struct mlx5e_sq_wqe_info *ico_wqe; } db; /* read only */ struct mlx5_wq_cyc wq; void __iomem *uar_map; u32 sqn; unsigned long state; /* control path */ struct mlx5_wq_ctrl wq_ctrl; struct mlx5e_channel *channel; } ____cacheline_aligned_in_smp; static inline bool mlx5e_wqc_has_room_for(struct mlx5_wq_cyc *wq, u16 cc, u16 pc, u16 n) { return (mlx5_wq_cyc_ctr2ix(wq, cc - pc) >= n) || (cc == pc); } struct mlx5e_wqe_frag_info { struct mlx5e_dma_info *di; u32 offset; bool last_in_page; }; struct mlx5e_umr_dma_info { struct mlx5e_dma_info dma_info[MLX5_MPWRQ_PAGES_PER_WQE]; }; struct mlx5e_mpw_info { struct mlx5e_umr_dma_info umr; u16 consumed_strides; DECLARE_BITMAP(xdp_xmit_bitmap, MLX5_MPWRQ_PAGES_PER_WQE); }; #define MLX5E_MAX_RX_FRAGS 4 /* a single cache unit is capable to serve one napi call (for non-striding rq) * or a MPWQE (for striding rq). */ #define MLX5E_CACHE_UNIT (MLX5_MPWRQ_PAGES_PER_WQE > NAPI_POLL_WEIGHT ? \ MLX5_MPWRQ_PAGES_PER_WQE : NAPI_POLL_WEIGHT) #define MLX5E_CACHE_SIZE (4 * roundup_pow_of_two(MLX5E_CACHE_UNIT)) struct mlx5e_page_cache { u32 head; u32 tail; struct mlx5e_dma_info page_cache[MLX5E_CACHE_SIZE]; }; struct mlx5e_rq; typedef void (*mlx5e_fp_handle_rx_cqe)(struct mlx5e_rq*, struct mlx5_cqe64*); typedef struct sk_buff * (*mlx5e_fp_skb_from_cqe_mpwrq)(struct mlx5e_rq *rq, struct mlx5e_mpw_info *wi, u16 cqe_bcnt, u32 head_offset, u32 page_idx); typedef struct sk_buff * (*mlx5e_fp_skb_from_cqe)(struct mlx5e_rq *rq, struct mlx5_cqe64 *cqe, struct mlx5e_wqe_frag_info *wi, u32 cqe_bcnt); typedef bool (*mlx5e_fp_post_rx_wqes)(struct mlx5e_rq *rq); typedef void (*mlx5e_fp_dealloc_wqe)(struct mlx5e_rq*, u16); enum mlx5e_rq_flag { MLX5E_RQ_FLAG_XDP_XMIT = BIT(0), }; struct mlx5e_rq_frag_info { int frag_size; int frag_stride; }; struct mlx5e_rq_frags_info { struct mlx5e_rq_frag_info arr[MLX5E_MAX_RX_FRAGS]; u8 num_frags; u8 log_num_frags; u8 wqe_bulk; }; struct mlx5e_rq { /* data path */ union { struct { struct mlx5_wq_cyc wq; struct mlx5e_wqe_frag_info *frags; struct mlx5e_dma_info *di; struct mlx5e_rq_frags_info info; mlx5e_fp_skb_from_cqe skb_from_cqe; } wqe; struct { struct mlx5_wq_ll wq; struct mlx5e_umr_wqe umr_wqe; struct mlx5e_mpw_info *info; mlx5e_fp_skb_from_cqe_mpwrq skb_from_cqe_mpwrq; u16 num_strides; u8 log_stride_sz; bool umr_in_progress; } mpwqe; }; struct { u16 headroom; u8 map_dir; /* dma map direction */ } buff; struct mlx5e_channel *channel; struct device *pdev; struct net_device *netdev; struct mlx5e_rq_stats *stats; struct mlx5e_cq cq; struct mlx5e_page_cache page_cache; struct hwtstamp_config *tstamp; struct mlx5_clock *clock; mlx5e_fp_handle_rx_cqe handle_rx_cqe; mlx5e_fp_post_rx_wqes post_wqes; mlx5e_fp_dealloc_wqe dealloc_wqe; unsigned long state; int ix; unsigned int hw_mtu; struct net_dim dim; /* Dynamic Interrupt Moderation */ /* XDP */ struct bpf_prog *xdp_prog; struct mlx5e_xdpsq xdpsq; DECLARE_BITMAP(flags, 8); struct page_pool *page_pool; /* control */ struct mlx5_wq_ctrl wq_ctrl; __be32 mkey_be; u8 wq_type; u32 rqn; struct mlx5_core_dev *mdev; struct mlx5_core_mkey umr_mkey; /* XDP read-mostly */ struct xdp_rxq_info xdp_rxq; } ____cacheline_aligned_in_smp; struct mlx5e_channel { /* data path */ struct mlx5e_rq rq; struct mlx5e_txqsq sq[MLX5E_MAX_NUM_TC]; struct mlx5e_icosq icosq; /* internal control operations */ bool xdp; struct napi_struct napi; struct device *pdev; struct net_device *netdev; __be32 mkey_be; u8 num_tc; /* XDP_REDIRECT */ struct mlx5e_xdpsq xdpsq; /* data path - accessed per napi poll */ struct irq_desc *irq_desc; struct mlx5e_ch_stats *stats; /* control */ struct mlx5e_priv *priv; struct mlx5_core_dev *mdev; struct hwtstamp_config *tstamp; int ix; int cpu; }; struct mlx5e_channels { struct mlx5e_channel **c; unsigned int num; struct mlx5e_params params; }; struct mlx5e_channel_stats { struct mlx5e_ch_stats ch; struct mlx5e_sq_stats sq[MLX5E_MAX_NUM_TC]; struct mlx5e_rq_stats rq; struct mlx5e_xdpsq_stats rq_xdpsq; struct mlx5e_xdpsq_stats xdpsq; } ____cacheline_aligned_in_smp; enum { MLX5E_STATE_ASYNC_EVENTS_ENABLED, MLX5E_STATE_OPENED, MLX5E_STATE_DESTROYING, }; struct mlx5e_rqt { u32 rqtn; bool enabled; }; struct mlx5e_tir { u32 tirn; struct mlx5e_rqt rqt; struct list_head list; }; enum { MLX5E_TC_PRIO = 0, MLX5E_NIC_PRIO }; struct mlx5e_rss_params { u32 indirection_rqt[MLX5E_INDIR_RQT_SIZE]; u32 rx_hash_fields[MLX5E_NUM_INDIR_TIRS]; u8 toeplitz_hash_key[40]; u8 hfunc; }; struct mlx5e_priv { /* priv data path fields - start */ struct mlx5e_txqsq *txq2sq[MLX5E_MAX_NUM_CHANNELS * MLX5E_MAX_NUM_TC]; int channel_tc2txq[MLX5E_MAX_NUM_CHANNELS][MLX5E_MAX_NUM_TC]; #ifdef CONFIG_MLX5_CORE_EN_DCB struct mlx5e_dcbx_dp dcbx_dp; #endif /* priv data path fields - end */ u32 msglevel; unsigned long state; struct mutex state_lock; /* Protects Interface state */ struct mlx5e_rq drop_rq; struct mlx5e_channels channels; u32 tisn[MLX5E_MAX_NUM_TC]; struct mlx5e_rqt indir_rqt; struct mlx5e_tir indir_tir[MLX5E_NUM_INDIR_TIRS]; struct mlx5e_tir inner_indir_tir[MLX5E_NUM_INDIR_TIRS]; struct mlx5e_tir direct_tir[MLX5E_MAX_NUM_CHANNELS]; struct mlx5e_rss_params rss_params; u32 tx_rates[MLX5E_MAX_NUM_SQS]; struct mlx5e_flow_steering fs; struct workqueue_struct *wq; struct work_struct update_carrier_work; struct work_struct set_rx_mode_work; struct work_struct tx_timeout_work; struct work_struct update_stats_work; struct mlx5_core_dev *mdev; struct net_device *netdev; struct mlx5e_stats stats; struct mlx5e_channel_stats channel_stats[MLX5E_MAX_NUM_CHANNELS]; u8 max_opened_tc; struct hwtstamp_config tstamp; u16 q_counter; u16 drop_rq_q_counter; #ifdef CONFIG_MLX5_CORE_EN_DCB struct mlx5e_dcbx dcbx; #endif const struct mlx5e_profile *profile; void *ppriv; #ifdef CONFIG_MLX5_EN_IPSEC struct mlx5e_ipsec *ipsec; #endif #ifdef CONFIG_MLX5_EN_TLS struct mlx5e_tls *tls; #endif }; struct mlx5e_profile { int (*init)(struct mlx5_core_dev *mdev, struct net_device *netdev, const struct mlx5e_profile *profile, void *ppriv); void (*cleanup)(struct mlx5e_priv *priv); int (*init_rx)(struct mlx5e_priv *priv); void (*cleanup_rx)(struct mlx5e_priv *priv); int (*init_tx)(struct mlx5e_priv *priv); void (*cleanup_tx)(struct mlx5e_priv *priv); void (*enable)(struct mlx5e_priv *priv); void (*disable)(struct mlx5e_priv *priv); void (*update_stats)(struct mlx5e_priv *priv); void (*update_carrier)(struct mlx5e_priv *priv); struct { mlx5e_fp_handle_rx_cqe handle_rx_cqe; mlx5e_fp_handle_rx_cqe handle_rx_cqe_mpwqe; } rx_handlers; int max_tc; }; void mlx5e_build_ptys2ethtool_map(void); u16 mlx5e_select_queue(struct net_device *dev, struct sk_buff *skb, struct net_device *sb_dev, select_queue_fallback_t fallback); netdev_tx_t mlx5e_xmit(struct sk_buff *skb, struct net_device *dev); netdev_tx_t mlx5e_sq_xmit(struct mlx5e_txqsq *sq, struct sk_buff *skb, struct mlx5e_tx_wqe *wqe, u16 pi); void mlx5e_completion_event(struct mlx5_core_cq *mcq); void mlx5e_cq_error_event(struct mlx5_core_cq *mcq, enum mlx5_event event); int mlx5e_napi_poll(struct napi_struct *napi, int budget); bool mlx5e_poll_tx_cq(struct mlx5e_cq *cq, int napi_budget); int mlx5e_poll_rx_cq(struct mlx5e_cq *cq, int budget); void mlx5e_free_txqsq_descs(struct mlx5e_txqsq *sq); bool mlx5e_check_fragmented_striding_rq_cap(struct mlx5_core_dev *mdev); bool mlx5e_striding_rq_possible(struct mlx5_core_dev *mdev, struct mlx5e_params *params); void mlx5e_page_dma_unmap(struct mlx5e_rq *rq, struct mlx5e_dma_info *dma_info); void mlx5e_page_release(struct mlx5e_rq *rq, struct mlx5e_dma_info *dma_info, bool recycle); void mlx5e_handle_rx_cqe(struct mlx5e_rq *rq, struct mlx5_cqe64 *cqe); void mlx5e_handle_rx_cqe_mpwrq(struct mlx5e_rq *rq, struct mlx5_cqe64 *cqe); bool mlx5e_post_rx_wqes(struct mlx5e_rq *rq); bool mlx5e_post_rx_mpwqes(struct mlx5e_rq *rq); void mlx5e_dealloc_rx_wqe(struct mlx5e_rq *rq, u16 ix); void mlx5e_dealloc_rx_mpwqe(struct mlx5e_rq *rq, u16 ix); struct sk_buff * mlx5e_skb_from_cqe_mpwrq_linear(struct mlx5e_rq *rq, struct mlx5e_mpw_info *wi, u16 cqe_bcnt, u32 head_offset, u32 page_idx); struct sk_buff * mlx5e_skb_from_cqe_mpwrq_nonlinear(struct mlx5e_rq *rq, struct mlx5e_mpw_info *wi, u16 cqe_bcnt, u32 head_offset, u32 page_idx); struct sk_buff * mlx5e_skb_from_cqe_linear(struct mlx5e_rq *rq, struct mlx5_cqe64 *cqe, struct mlx5e_wqe_frag_info *wi, u32 cqe_bcnt); struct sk_buff * mlx5e_skb_from_cqe_nonlinear(struct mlx5e_rq *rq, struct mlx5_cqe64 *cqe, struct mlx5e_wqe_frag_info *wi, u32 cqe_bcnt); void mlx5e_update_stats(struct mlx5e_priv *priv); void mlx5e_init_l2_addr(struct mlx5e_priv *priv); int mlx5e_self_test_num(struct mlx5e_priv *priv); void mlx5e_self_test(struct net_device *ndev, struct ethtool_test *etest, u64 *buf); void mlx5e_set_rx_mode_work(struct work_struct *work); int mlx5e_hwstamp_set(struct mlx5e_priv *priv, struct ifreq *ifr); int mlx5e_hwstamp_get(struct mlx5e_priv *priv, struct ifreq *ifr); int mlx5e_modify_rx_cqe_compression_locked(struct mlx5e_priv *priv, bool val); int mlx5e_vlan_rx_add_vid(struct net_device *dev, __always_unused __be16 proto, u16 vid); int mlx5e_vlan_rx_kill_vid(struct net_device *dev, __always_unused __be16 proto, u16 vid); void mlx5e_timestamp_init(struct mlx5e_priv *priv); struct mlx5e_redirect_rqt_param { bool is_rss; union { u32 rqn; /* Direct RQN (Non-RSS) */ struct { u8 hfunc; struct mlx5e_channels *channels; } rss; /* RSS data */ }; }; int mlx5e_redirect_rqt(struct mlx5e_priv *priv, u32 rqtn, int sz, struct mlx5e_redirect_rqt_param rrp); void mlx5e_build_indir_tir_ctx_hash(struct mlx5e_rss_params *rss_params, const struct mlx5e_tirc_config *ttconfig, void *tirc, bool inner); void mlx5e_modify_tirs_hash(struct mlx5e_priv *priv, void *in, int inlen); struct mlx5e_tirc_config mlx5e_tirc_get_default_config(enum mlx5e_traffic_types tt); int mlx5e_open_locked(struct net_device *netdev); int mlx5e_close_locked(struct net_device *netdev); int mlx5e_open_channels(struct mlx5e_priv *priv, struct mlx5e_channels *chs); void mlx5e_close_channels(struct mlx5e_channels *chs); /* Function pointer to be used to modify WH settings while * switching channels */ typedef int (*mlx5e_fp_hw_modify)(struct mlx5e_priv *priv); void mlx5e_switch_priv_channels(struct mlx5e_priv *priv, struct mlx5e_channels *new_chs, mlx5e_fp_hw_modify hw_modify); void mlx5e_activate_priv_channels(struct mlx5e_priv *priv); void mlx5e_deactivate_priv_channels(struct mlx5e_priv *priv); void mlx5e_build_default_indir_rqt(u32 *indirection_rqt, int len, int num_channels); void mlx5e_set_tx_cq_mode_params(struct mlx5e_params *params, u8 cq_period_mode); void mlx5e_set_rx_cq_mode_params(struct mlx5e_params *params, u8 cq_period_mode); void mlx5e_set_rq_type(struct mlx5_core_dev *mdev, struct mlx5e_params *params); void mlx5e_init_rq_type_params(struct mlx5_core_dev *mdev, struct mlx5e_params *params); static inline bool mlx5e_tunnel_inner_ft_supported(struct mlx5_core_dev *mdev) { return (MLX5_CAP_ETH(mdev, tunnel_stateless_gre) && MLX5_CAP_FLOWTABLE_NIC_RX(mdev, ft_field_support.inner_ip_version)); } static inline void mlx5e_sq_fetch_wqe(struct mlx5e_txqsq *sq, struct mlx5e_tx_wqe **wqe, u16 *pi) { struct mlx5_wq_cyc *wq = &sq->wq; *pi = mlx5_wq_cyc_ctr2ix(wq, sq->pc); *wqe = mlx5_wq_cyc_get_wqe(wq, *pi); memset(*wqe, 0, sizeof(**wqe)); } static inline struct mlx5e_tx_wqe *mlx5e_post_nop(struct mlx5_wq_cyc *wq, u32 sqn, u16 *pc) { u16 pi = mlx5_wq_cyc_ctr2ix(wq, *pc); struct mlx5e_tx_wqe *wqe = mlx5_wq_cyc_get_wqe(wq, pi); struct mlx5_wqe_ctrl_seg *cseg = &wqe->ctrl; memset(cseg, 0, sizeof(*cseg)); cseg->opmod_idx_opcode = cpu_to_be32((*pc << 8) | MLX5_OPCODE_NOP); cseg->qpn_ds = cpu_to_be32((sqn << 8) | 0x01); (*pc)++; return wqe; } static inline void mlx5e_notify_hw(struct mlx5_wq_cyc *wq, u16 pc, void __iomem *uar_map, struct mlx5_wqe_ctrl_seg *ctrl) { ctrl->fm_ce_se = MLX5_WQE_CTRL_CQ_UPDATE; /* ensure wqe is visible to device before updating doorbell record */ dma_wmb(); *wq->db = cpu_to_be32(pc); /* ensure doorbell record is visible to device before ringing the * doorbell */ wmb(); mlx5_write64((__be32 *)ctrl, uar_map, NULL); } static inline void mlx5e_cq_arm(struct mlx5e_cq *cq) { struct mlx5_core_cq *mcq; mcq = &cq->mcq; mlx5_cq_arm(mcq, MLX5_CQ_DB_REQ_NOT, mcq->uar->map, cq->wq.cc); } extern const struct ethtool_ops mlx5e_ethtool_ops; #ifdef CONFIG_MLX5_CORE_EN_DCB extern const struct dcbnl_rtnl_ops mlx5e_dcbnl_ops; int mlx5e_dcbnl_ieee_setets_core(struct mlx5e_priv *priv, struct ieee_ets *ets); void mlx5e_dcbnl_initialize(struct mlx5e_priv *priv); void mlx5e_dcbnl_init_app(struct mlx5e_priv *priv); void mlx5e_dcbnl_delete_app(struct mlx5e_priv *priv); #endif int mlx5e_create_tir(struct mlx5_core_dev *mdev, struct mlx5e_tir *tir, u32 *in, int inlen); void mlx5e_destroy_tir(struct mlx5_core_dev *mdev, struct mlx5e_tir *tir); int mlx5e_create_mdev_resources(struct mlx5_core_dev *mdev); void mlx5e_destroy_mdev_resources(struct mlx5_core_dev *mdev); int mlx5e_refresh_tirs(struct mlx5e_priv *priv, bool enable_uc_lb); /* common netdev helpers */ void mlx5e_create_q_counters(struct mlx5e_priv *priv); void mlx5e_destroy_q_counters(struct mlx5e_priv *priv); int mlx5e_open_drop_rq(struct mlx5e_priv *priv, struct mlx5e_rq *drop_rq); void mlx5e_close_drop_rq(struct mlx5e_rq *drop_rq); int mlx5e_create_indirect_rqt(struct mlx5e_priv *priv); int mlx5e_create_indirect_tirs(struct mlx5e_priv *priv, bool inner_ttc); void mlx5e_destroy_indirect_tirs(struct mlx5e_priv *priv, bool inner_ttc); int mlx5e_create_direct_rqts(struct mlx5e_priv *priv); void mlx5e_destroy_direct_rqts(struct mlx5e_priv *priv); int mlx5e_create_direct_tirs(struct mlx5e_priv *priv); void mlx5e_destroy_direct_tirs(struct mlx5e_priv *priv); void mlx5e_destroy_rqt(struct mlx5e_priv *priv, struct mlx5e_rqt *rqt); int mlx5e_create_tis(struct mlx5_core_dev *mdev, int tc, u32 underlay_qpn, u32 *tisn); void mlx5e_destroy_tis(struct mlx5_core_dev *mdev, u32 tisn); int mlx5e_create_tises(struct mlx5e_priv *priv); void mlx5e_cleanup_nic_tx(struct mlx5e_priv *priv); int mlx5e_close(struct net_device *netdev); int mlx5e_open(struct net_device *netdev); void mlx5e_queue_update_stats(struct mlx5e_priv *priv); int mlx5e_bits_invert(unsigned long a, int size); typedef int (*change_hw_mtu_cb)(struct mlx5e_priv *priv); int mlx5e_change_mtu(struct net_device *netdev, int new_mtu, change_hw_mtu_cb set_mtu_cb); /* ethtool helpers */ void mlx5e_ethtool_get_drvinfo(struct mlx5e_priv *priv, struct ethtool_drvinfo *drvinfo); void mlx5e_ethtool_get_strings(struct mlx5e_priv *priv, uint32_t stringset, uint8_t *data); int mlx5e_ethtool_get_sset_count(struct mlx5e_priv *priv, int sset); void mlx5e_ethtool_get_ethtool_stats(struct mlx5e_priv *priv, struct ethtool_stats *stats, u64 *data); void mlx5e_ethtool_get_ringparam(struct mlx5e_priv *priv, struct ethtool_ringparam *param); int mlx5e_ethtool_set_ringparam(struct mlx5e_priv *priv, struct ethtool_ringparam *param); void mlx5e_ethtool_get_channels(struct mlx5e_priv *priv, struct ethtool_channels *ch); int mlx5e_ethtool_set_channels(struct mlx5e_priv *priv, struct ethtool_channels *ch); int mlx5e_ethtool_get_coalesce(struct mlx5e_priv *priv, struct ethtool_coalesce *coal); int mlx5e_ethtool_set_coalesce(struct mlx5e_priv *priv, struct ethtool_coalesce *coal); u32 mlx5e_ethtool_get_rxfh_key_size(struct mlx5e_priv *priv); u32 mlx5e_ethtool_get_rxfh_indir_size(struct mlx5e_priv *priv); int mlx5e_ethtool_get_ts_info(struct mlx5e_priv *priv, struct ethtool_ts_info *info); int mlx5e_ethtool_flash_device(struct mlx5e_priv *priv, struct ethtool_flash *flash); /* mlx5e generic netdev management API */ int mlx5e_netdev_init(struct net_device *netdev, struct mlx5e_priv *priv, struct mlx5_core_dev *mdev, const struct mlx5e_profile *profile, void *ppriv); void mlx5e_netdev_cleanup(struct net_device *netdev, struct mlx5e_priv *priv); struct net_device* mlx5e_create_netdev(struct mlx5_core_dev *mdev, const struct mlx5e_profile *profile, int nch, void *ppriv); int mlx5e_attach_netdev(struct mlx5e_priv *priv); void mlx5e_detach_netdev(struct mlx5e_priv *priv); void mlx5e_destroy_netdev(struct mlx5e_priv *priv); void mlx5e_build_nic_params(struct mlx5_core_dev *mdev, struct mlx5e_rss_params *rss_params, struct mlx5e_params *params, u16 max_channels, u16 mtu); void mlx5e_build_rq_params(struct mlx5_core_dev *mdev, struct mlx5e_params *params); void mlx5e_build_rss_params(struct mlx5e_rss_params *rss_params, u16 num_channels); u8 mlx5e_params_calculate_tx_min_inline(struct mlx5_core_dev *mdev); void mlx5e_rx_dim_work(struct work_struct *work); void mlx5e_tx_dim_work(struct work_struct *work); #endif /* __MLX5_EN_H__ */