[linux-2.6-block.git] / drivers / net / ethernet / mellanox / mlx5 / core / en.h

/*
 * Copyright (c) 2015, 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.
 */

#include <linux/if_vlan.h>
#include <linux/etherdevice.h>
#include <linux/mlx5/driver.h>
#include <linux/mlx5/qp.h>
#include <linux/mlx5/cq.h>
#include <linux/mlx5/vport.h>
#include "wq.h"
#include "transobj.h"
#include "mlx5_core.h"

#define MLX5E_MAX_NUM_TC	8

#define MLX5E_PARAMS_MINIMUM_LOG_SQ_SIZE                0x7
#define MLX5E_PARAMS_DEFAULT_LOG_SQ_SIZE                0xa
#define MLX5E_PARAMS_MAXIMUM_LOG_SQ_SIZE                0xd

#define MLX5E_PARAMS_MINIMUM_LOG_RQ_SIZE                0x7
#define MLX5E_PARAMS_DEFAULT_LOG_RQ_SIZE                0xa
#define MLX5E_PARAMS_MAXIMUM_LOG_RQ_SIZE                0xd

#define MLX5E_PARAMS_DEFAULT_LRO_WQE_SZ                 (16 * 1024)
#define MLX5E_PARAMS_DEFAULT_RX_CQ_MODERATION_USEC      0x10
#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_PKTS      0x20
#define MLX5E_PARAMS_DEFAULT_MIN_RX_WQES                0x80
#define MLX5E_PARAMS_DEFAULT_RX_HASH_LOG_TBL_SZ         0x7

#define MLX5E_TX_CQ_POLL_BUDGET        128
#define MLX5E_UPDATE_STATS_INTERVAL    200 /* msecs */

static const char vport_strings[][ETH_GSTRING_LEN] = {
	/* vport statistics */
	"rx_packets",
	"rx_bytes",
	"tx_packets",
	"tx_bytes",
	"rx_error_packets",
	"rx_error_bytes",
	"tx_error_packets",
	"tx_error_bytes",
	"rx_unicast_packets",
	"rx_unicast_bytes",
	"tx_unicast_packets",
	"tx_unicast_bytes",
	"rx_multicast_packets",
	"rx_multicast_bytes",
	"tx_multicast_packets",
	"tx_multicast_bytes",
	"rx_broadcast_packets",
	"rx_broadcast_bytes",
	"tx_broadcast_packets",
	"tx_broadcast_bytes",

	/* SW counters */
	"tso_packets",
	"tso_bytes",
	"lro_packets",
	"lro_bytes",
	"rx_csum_good",
	"rx_csum_none",
	"tx_csum_offload",
	"tx_queue_stopped",
	"tx_queue_wake",
	"tx_queue_dropped",
	"rx_wqe_err",
};

struct mlx5e_vport_stats {
	/* HW counters */
	u64 rx_packets;
	u64 rx_bytes;
	u64 tx_packets;
	u64 tx_bytes;
	u64 rx_error_packets;
	u64 rx_error_bytes;
	u64 tx_error_packets;
	u64 tx_error_bytes;
	u64 rx_unicast_packets;
	u64 rx_unicast_bytes;
	u64 tx_unicast_packets;
	u64 tx_unicast_bytes;
	u64 rx_multicast_packets;
	u64 rx_multicast_bytes;
	u64 tx_multicast_packets;
	u64 tx_multicast_bytes;
	u64 rx_broadcast_packets;
	u64 rx_broadcast_bytes;
	u64 tx_broadcast_packets;
	u64 tx_broadcast_bytes;

	/* SW counters */
	u64 tso_packets;
	u64 tso_bytes;
	u64 lro_packets;
	u64 lro_bytes;
	u64 rx_csum_good;
	u64 rx_csum_none;
	u64 tx_csum_offload;
	u64 tx_queue_stopped;
	u64 tx_queue_wake;
	u64 tx_queue_dropped;
	u64 rx_wqe_err;

#define NUM_VPORT_COUNTERS     31
};

static const char rq_stats_strings[][ETH_GSTRING_LEN] = {
	"packets",
	"csum_none",
	"lro_packets",
	"lro_bytes",
	"wqe_err"
};

struct mlx5e_rq_stats {
	u64 packets;
	u64 csum_none;
	u64 lro_packets;
	u64 lro_bytes;
	u64 wqe_err;
#define NUM_RQ_STATS 5
};

static const char sq_stats_strings[][ETH_GSTRING_LEN] = {
	"packets",
	"tso_packets",
	"tso_bytes",
	"csum_offload_none",
	"stopped",
	"wake",
	"dropped",
	"nop"
};

struct mlx5e_sq_stats {
	u64 packets;
	u64 tso_packets;
	u64 tso_bytes;
	u64 csum_offload_none;
	u64 stopped;
	u64 wake;
	u64 dropped;
	u64 nop;
#define NUM_SQ_STATS 8
};

struct mlx5e_stats {
	struct mlx5e_vport_stats   vport;
};

struct mlx5e_params {
	u8  log_sq_size;
	u8  log_rq_size;
	u16 num_channels;
	u8  default_vlan_prio;
	u8  num_tc;
	u16 rx_cq_moderation_usec;
	u16 rx_cq_moderation_pkts;
	u16 tx_cq_moderation_usec;
	u16 tx_cq_moderation_pkts;
	u16 min_rx_wqes;
	u16 rx_hash_log_tbl_sz;
	bool lro_en;
	u32 lro_wqe_sz;
	u8  rss_hfunc;
};

enum {
	MLX5E_RQ_STATE_POST_WQES_ENABLE,
};

enum cq_flags {
	MLX5E_CQ_HAS_CQES = 1,
};

struct mlx5e_cq {
	/* data path - accessed per cqe */
	struct mlx5_cqwq           wq;
	unsigned long              flags;

	/* data path - accessed per napi poll */
	struct napi_struct        *napi;
	struct mlx5_core_cq        mcq;
	struct mlx5e_channel      *channel;

	/* control */
	struct mlx5_wq_ctrl        wq_ctrl;
} ____cacheline_aligned_in_smp;

struct mlx5e_rq {
	/* data path */
	struct mlx5_wq_ll      wq;
	u32                    wqe_sz;
	struct sk_buff       **skb;

	struct device         *pdev;
	struct net_device     *netdev;
	struct mlx5e_rq_stats  stats;
	struct mlx5e_cq        cq;

	unsigned long          state;
	int                    ix;

	/* control */
	struct mlx5_wq_ctrl    wq_ctrl;
	u32                    rqn;
	struct mlx5e_channel  *channel;
} ____cacheline_aligned_in_smp;

struct mlx5e_tx_skb_cb {
	u32 num_bytes;
	u8  num_wqebbs;
	u8  num_dma;
};

#define MLX5E_TX_SKB_CB(__skb) ((struct mlx5e_tx_skb_cb *)__skb->cb)

struct mlx5e_sq_dma {
	dma_addr_t addr;
	u32        size;
};

enum {
	MLX5E_SQ_STATE_WAKE_TXQ_ENABLE,
};

struct mlx5e_sq {
	/* data path */

	/* dirtied @completion */
	u16                        cc;
	u32                        dma_fifo_cc;

	/* dirtied @xmit */
	u16                        pc ____cacheline_aligned_in_smp;
	u32                        dma_fifo_pc;
	u32                        bf_offset;
	struct mlx5e_sq_stats      stats;

	struct mlx5e_cq            cq;

	/* pointers to per packet info: write@xmit, read@completion */
	struct sk_buff           **skb;
	struct mlx5e_sq_dma       *dma_fifo;

	/* read only */
	struct mlx5_wq_cyc         wq;
	u32                        dma_fifo_mask;
	void __iomem              *uar_map;
	struct netdev_queue       *txq;
	u32                        sqn;
	u32                        bf_buf_size;
	u16                        max_inline;
	u16                        edge;
	struct device             *pdev;
	__be32                     mkey_be;
	unsigned long              state;

	/* control path */
	struct mlx5_wq_ctrl        wq_ctrl;
	struct mlx5_uar            uar;
	struct mlx5e_channel      *channel;
	int                        tc;
} ____cacheline_aligned_in_smp;

static inline bool mlx5e_sq_has_room_for(struct mlx5e_sq *sq, u16 n)
{
	return (((sq->wq.sz_m1 & (sq->cc - sq->pc)) >= n) ||
		(sq->cc  == sq->pc));
}

enum channel_flags {
	MLX5E_CHANNEL_NAPI_SCHED = 1,
};

struct mlx5e_channel {
	/* data path */
	struct mlx5e_rq            rq;
	struct mlx5e_sq            sq[MLX5E_MAX_NUM_TC];
	struct napi_struct         napi;
	struct device             *pdev;
	struct net_device         *netdev;
	__be32                     mkey_be;
	u8                         num_tc;
	unsigned long              flags;
	int                        tc_to_txq_map[MLX5E_MAX_NUM_TC];

	/* control */
	struct mlx5e_priv         *priv;
	int                        ix;
	int                        cpu;
};

enum mlx5e_traffic_types {
	MLX5E_TT_IPV4_TCP = 0,
	MLX5E_TT_IPV6_TCP = 1,
	MLX5E_TT_IPV4_UDP = 2,
	MLX5E_TT_IPV6_UDP = 3,
	MLX5E_TT_IPV4     = 4,
	MLX5E_TT_IPV6     = 5,
	MLX5E_TT_ANY      = 6,
	MLX5E_NUM_TT      = 7,
};

enum {
	MLX5E_RQT_SPREADING  = 0,
	MLX5E_RQT_DEFAULT_RQ = 1,
	MLX5E_NUM_RQT        = 2,
};

struct mlx5e_eth_addr_info {
	u8  addr[ETH_ALEN + 2];
	u32 tt_vec;
	u32 ft_ix[MLX5E_NUM_TT]; /* flow table index per traffic type */
};

#define MLX5E_ETH_ADDR_HASH_SIZE (1 << BITS_PER_BYTE)

struct mlx5e_eth_addr_db {
	struct hlist_head          netdev_uc[MLX5E_ETH_ADDR_HASH_SIZE];
	struct hlist_head          netdev_mc[MLX5E_ETH_ADDR_HASH_SIZE];
	struct mlx5e_eth_addr_info broadcast;
	struct mlx5e_eth_addr_info allmulti;
	struct mlx5e_eth_addr_info promisc;
	bool                       broadcast_enabled;
	bool                       allmulti_enabled;
	bool                       promisc_enabled;
};

enum {
	MLX5E_STATE_ASYNC_EVENTS_ENABLE,
	MLX5E_STATE_OPENED,
};

struct mlx5e_vlan_db {
	unsigned long active_vlans[BITS_TO_LONGS(VLAN_N_VID)];
	u32           active_vlans_ft_ix[VLAN_N_VID];
	u32           untagged_rule_ft_ix;
	u32           any_vlan_rule_ft_ix;
	bool          filter_disabled;
};

struct mlx5e_flow_table {
	void *vlan;
	void *main;
};

struct mlx5e_priv {
	/* priv data path fields - start */
	int                        num_tc;
	int                        default_vlan_prio;
	struct mlx5e_sq            **txq_to_sq_map;
	/* priv data path fields - end */

	unsigned long              state;
	struct mutex               state_lock; /* Protects Interface state */
	struct mlx5_uar            cq_uar;
	u32                        pdn;
	u32                        tdn;
	struct mlx5_core_mr        mr;

	struct mlx5e_channel     **channel;
	u32                        tisn[MLX5E_MAX_NUM_TC];
	u32                        rqtn;
	u32                        tirn[MLX5E_NUM_TT];

	struct mlx5e_flow_table    ft;
	struct mlx5e_eth_addr_db   eth_addr;
	struct mlx5e_vlan_db       vlan;

	struct mlx5e_params        params;
	spinlock_t                 async_events_spinlock; /* sync hw events */
	struct work_struct         update_carrier_work;
	struct work_struct         set_rx_mode_work;
	struct delayed_work        update_stats_work;

	struct mlx5_core_dev      *mdev;
	struct net_device         *netdev;
	struct mlx5e_stats         stats;
};

#define MLX5E_NET_IP_ALIGN 2

struct mlx5e_tx_wqe {
	struct mlx5_wqe_ctrl_seg ctrl;
	struct mlx5_wqe_eth_seg  eth;
};

struct mlx5e_rx_wqe {
	struct mlx5_wqe_srq_next_seg  next;
	struct mlx5_wqe_data_seg      data;
};

enum mlx5e_link_mode {
	MLX5E_1000BASE_CX_SGMII	 = 0,
	MLX5E_1000BASE_KX	 = 1,
	MLX5E_10GBASE_CX4	 = 2,
	MLX5E_10GBASE_KX4	 = 3,
	MLX5E_10GBASE_KR	 = 4,
	MLX5E_20GBASE_KR2	 = 5,
	MLX5E_40GBASE_CR4	 = 6,
	MLX5E_40GBASE_KR4	 = 7,
	MLX5E_56GBASE_R4	 = 8,
	MLX5E_10GBASE_CR	 = 12,
	MLX5E_10GBASE_SR	 = 13,
	MLX5E_10GBASE_ER	 = 14,
	MLX5E_40GBASE_SR4	 = 15,
	MLX5E_40GBASE_LR4	 = 16,
	MLX5E_100GBASE_CR4	 = 20,
	MLX5E_100GBASE_SR4	 = 21,
	MLX5E_100GBASE_KR4	 = 22,
	MLX5E_100GBASE_LR4	 = 23,
	MLX5E_100BASE_TX	 = 24,
	MLX5E_100BASE_T		 = 25,
	MLX5E_10GBASE_T		 = 26,
	MLX5E_25GBASE_CR	 = 27,
	MLX5E_25GBASE_KR	 = 28,
	MLX5E_25GBASE_SR	 = 29,
	MLX5E_50GBASE_CR2	 = 30,
	MLX5E_50GBASE_KR2	 = 31,
	MLX5E_LINK_MODES_NUMBER,
};

#define MLX5E_PROT_MASK(link_mode) (1 << link_mode)

void mlx5e_send_nop(struct mlx5e_sq *sq, bool notify_hw);
u16 mlx5e_select_queue(struct net_device *dev, struct sk_buff *skb,
		       void *accel_priv, select_queue_fallback_t fallback);
netdev_tx_t mlx5e_xmit(struct sk_buff *skb, struct net_device *dev);

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);
bool mlx5e_poll_rx_cq(struct mlx5e_cq *cq, int budget);
bool mlx5e_post_rx_wqes(struct mlx5e_rq *rq);
struct mlx5_cqe64 *mlx5e_get_cqe(struct mlx5e_cq *cq);

void mlx5e_update_stats(struct mlx5e_priv *priv);

int mlx5e_open_flow_table(struct mlx5e_priv *priv);
void mlx5e_close_flow_table(struct mlx5e_priv *priv);
void mlx5e_init_eth_addr(struct mlx5e_priv *priv);
void mlx5e_set_rx_mode_core(struct mlx5e_priv *priv);
void mlx5e_set_rx_mode_work(struct work_struct *work);

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_enable_vlan_filter(struct mlx5e_priv *priv);
void mlx5e_disable_vlan_filter(struct mlx5e_priv *priv);
int mlx5e_add_all_vlan_rules(struct mlx5e_priv *priv);
void mlx5e_del_all_vlan_rules(struct mlx5e_priv *priv);

int mlx5e_open_locked(struct net_device *netdev);
int mlx5e_close_locked(struct net_device *netdev);
int mlx5e_update_priv_params(struct mlx5e_priv *priv,
			     struct mlx5e_params *new_params);

static inline void mlx5e_tx_notify_hw(struct mlx5e_sq *sq,
				      struct mlx5e_tx_wqe *wqe)
{
	/* ensure wqe is visible to device before updating doorbell record */
	dma_wmb();

	*sq->wq.db = cpu_to_be32(sq->pc);

	/* ensure doorbell record is visible to device before ringing the
	 * doorbell
	 */
	wmb();

	mlx5_write64((__be32 *)&wqe->ctrl,
		     sq->uar_map + MLX5_BF_OFFSET + sq->bf_offset,
		     NULL);

	sq->bf_offset ^= sq->bf_buf_size;
}

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, NULL, cq->wq.cc);
}

extern const struct ethtool_ops mlx5e_ethtool_ops;
Commit	Line	Data
f62b8bb8 AV	1	/*
	2	* Copyright (c) 2015, Mellanox Technologies. All rights reserved.
	3	*
	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:
	9	*
	10	* Redistribution and use in source and binary forms, with or
	11	* without modification, are permitted provided that the following
	12	* conditions are met:
	13	*
	14	* - Redistributions of source code must retain the above
	15	* copyright notice, this list of conditions and the following
	16	* disclaimer.
	17	*
	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.
	22	*
	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
	30	* SOFTWARE.
	31	*/
	32
	33	#include <linux/if_vlan.h>
	34	#include <linux/etherdevice.h>
	35	#include <linux/mlx5/driver.h>
	36	#include <linux/mlx5/qp.h>
	37	#include <linux/mlx5/cq.h>
d18a9470	38	#include <linux/mlx5/vport.h>
f62b8bb8 AV	39	#include "wq.h"
	40	#include "transobj.h"
	41	#include "mlx5_core.h"
	42
	43	#define MLX5E_MAX_NUM_TC 8
	44
	45	#define MLX5E_PARAMS_MINIMUM_LOG_SQ_SIZE 0x7
	46	#define MLX5E_PARAMS_DEFAULT_LOG_SQ_SIZE 0xa
	47	#define MLX5E_PARAMS_MAXIMUM_LOG_SQ_SIZE 0xd
	48
	49	#define MLX5E_PARAMS_MINIMUM_LOG_RQ_SIZE 0x7
	50	#define MLX5E_PARAMS_DEFAULT_LOG_RQ_SIZE 0xa
	51	#define MLX5E_PARAMS_MAXIMUM_LOG_RQ_SIZE 0xd
	52
	53	#define MLX5E_PARAMS_DEFAULT_LRO_WQE_SZ (16 * 1024)
	54	#define MLX5E_PARAMS_DEFAULT_RX_CQ_MODERATION_USEC 0x10
	55	#define MLX5E_PARAMS_DEFAULT_RX_CQ_MODERATION_PKTS 0x20
	56	#define MLX5E_PARAMS_DEFAULT_TX_CQ_MODERATION_USEC 0x10
	57	#define MLX5E_PARAMS_DEFAULT_TX_CQ_MODERATION_PKTS 0x20
	58	#define MLX5E_PARAMS_DEFAULT_MIN_RX_WQES 0x80
	59	#define MLX5E_PARAMS_DEFAULT_RX_HASH_LOG_TBL_SZ 0x7
f62b8bb8 AV	60
	61	#define MLX5E_TX_CQ_POLL_BUDGET 128
	62	#define MLX5E_UPDATE_STATS_INTERVAL 200 /* msecs */
	63
	64	static const char vport_strings[][ETH_GSTRING_LEN] = {
	65	/* vport statistics */
	66	"rx_packets",
	67	"rx_bytes",
	68	"tx_packets",
	69	"tx_bytes",
	70	"rx_error_packets",
	71	"rx_error_bytes",
	72	"tx_error_packets",
	73	"tx_error_bytes",
	74	"rx_unicast_packets",
	75	"rx_unicast_bytes",
	76	"tx_unicast_packets",
	77	"tx_unicast_bytes",
	78	"rx_multicast_packets",
	79	"rx_multicast_bytes",
	80	"tx_multicast_packets",
	81	"tx_multicast_bytes",
	82	"rx_broadcast_packets",
	83	"rx_broadcast_bytes",
	84	"tx_broadcast_packets",
	85	"tx_broadcast_bytes",
	86
	87	/* SW counters */
	88	"tso_packets",
	89	"tso_bytes",
	90	"lro_packets",
	91	"lro_bytes",
	92	"rx_csum_good",
	93	"rx_csum_none",
	94	"tx_csum_offload",
	95	"tx_queue_stopped",
	96	"tx_queue_wake",
	97	"tx_queue_dropped",
	98	"rx_wqe_err",
	99	};
	100
	101	struct mlx5e_vport_stats {
	102	/* HW counters */
	103	u64 rx_packets;
	104	u64 rx_bytes;
	105	u64 tx_packets;
	106	u64 tx_bytes;
	107	u64 rx_error_packets;
	108	u64 rx_error_bytes;
	109	u64 tx_error_packets;
	110	u64 tx_error_bytes;
	111	u64 rx_unicast_packets;
	112	u64 rx_unicast_bytes;
	113	u64 tx_unicast_packets;
	114	u64 tx_unicast_bytes;
	115	u64 rx_multicast_packets;
	116	u64 rx_multicast_bytes;
	117	u64 tx_multicast_packets;
	118	u64 tx_multicast_bytes;
	119	u64 rx_broadcast_packets;
	120	u64 rx_broadcast_bytes;
	121	u64 tx_broadcast_packets;
	122	u64 tx_broadcast_bytes;
	123
124	/* SW counters */
125	u64 tso_packets;
126	u64 tso_bytes;
127	u64 lro_packets;
128	u64 lro_bytes;
129	u64 rx_csum_good;
130	u64 rx_csum_none;
131	u64 tx_csum_offload;
132	u64 tx_queue_stopped;
133	u64 tx_queue_wake;
134	u64 tx_queue_dropped;
135	u64 rx_wqe_err;
136
137	#define NUM_VPORT_COUNTERS 31
138	};
139
140	static const char rq_stats_strings[][ETH_GSTRING_LEN] = {
141	"packets",
142	"csum_none",
143	"lro_packets",
144	"lro_bytes",
145	"wqe_err"
146	};
147
148	struct mlx5e_rq_stats {
149	u64 packets;
150	u64 csum_none;
151	u64 lro_packets;
152	u64 lro_bytes;
153	u64 wqe_err;
154	#define NUM_RQ_STATS 5
155	};
156
157	static const char sq_stats_strings[][ETH_GSTRING_LEN] = {
158	"packets",
159	"tso_packets",
160	"tso_bytes",
161	"csum_offload_none",
162	"stopped",
163	"wake",
164	"dropped",
165	"nop"
166	};
167
168	struct mlx5e_sq_stats {
169	u64 packets;
170	u64 tso_packets;
171	u64 tso_bytes;
172	u64 csum_offload_none;
173	u64 stopped;
174	u64 wake;
175	u64 dropped;
176	u64 nop;
177	#define NUM_SQ_STATS 8
178	};
179
180	struct mlx5e_stats {
181	struct mlx5e_vport_stats vport;
182	};
183
184	struct mlx5e_params {
185	u8 log_sq_size;
186	u8 log_rq_size;
187	u16 num_channels;
188	u8 default_vlan_prio;
189	u8 num_tc;
190	u16 rx_cq_moderation_usec;
191	u16 rx_cq_moderation_pkts;
192	u16 tx_cq_moderation_usec;
193	u16 tx_cq_moderation_pkts;
194	u16 min_rx_wqes;
195	u16 rx_hash_log_tbl_sz;
196	bool lro_en;
197	u32 lro_wqe_sz;
2be6967c	198	u8 rss_hfunc;
f62b8bb8 AV	199	};
	200
	201	enum {
	202	MLX5E_RQ_STATE_POST_WQES_ENABLE,
	203	};
	204
	205	enum cq_flags {
	206	MLX5E_CQ_HAS_CQES = 1,
	207	};
	208
	209	struct mlx5e_cq {
	210	/* data path - accessed per cqe */
	211	struct mlx5_cqwq wq;
f62b8bb8 AV	212	unsigned long flags;
	213
	214	/* data path - accessed per napi poll */
	215	struct napi_struct *napi;
	216	struct mlx5_core_cq mcq;
	217	struct mlx5e_channel *channel;
	218
	219	/* control */
	220	struct mlx5_wq_ctrl wq_ctrl;
	221	} ____cacheline_aligned_in_smp;
	222
	223	struct mlx5e_rq {
	224	/* data path */
	225	struct mlx5_wq_ll wq;
	226	u32 wqe_sz;
	227	struct sk_buff **skb;
	228
	229	struct device *pdev;
	230	struct net_device *netdev;
	231	struct mlx5e_rq_stats stats;
	232	struct mlx5e_cq cq;
	233
	234	unsigned long state;
	235	int ix;
	236
	237	/* control */
	238	struct mlx5_wq_ctrl wq_ctrl;
	239	u32 rqn;
	240	struct mlx5e_channel *channel;
	241	} ____cacheline_aligned_in_smp;
	242
	243	struct mlx5e_tx_skb_cb {
	244	u32 num_bytes;
	245	u8 num_wqebbs;
	246	u8 num_dma;
	247	};
	248
	249	#define MLX5E_TX_SKB_CB(__skb) ((struct mlx5e_tx_skb_cb *)__skb->cb)
	250
	251	struct mlx5e_sq_dma {
	252	dma_addr_t addr;
	253	u32 size;
	254	};
	255
	256	enum {
	257	MLX5E_SQ_STATE_WAKE_TXQ_ENABLE,
	258	};
	259
	260	struct mlx5e_sq {
	261	/* data path */
	262
	263	/* dirtied @completion */
	264	u16 cc;
	265	u32 dma_fifo_cc;
	266
	267	/* dirtied @xmit */
	268	u16 pc ____cacheline_aligned_in_smp;
	269	u32 dma_fifo_pc;
	270	u32 bf_offset;
	271	struct mlx5e_sq_stats stats;
	272
	273	struct mlx5e_cq cq;
	274
	275	/* pointers to per packet info: write@xmit, read@completion */
276	struct sk_buff **skb;
277	struct mlx5e_sq_dma *dma_fifo;
278
279	/* read only */
280	struct mlx5_wq_cyc wq;
281	u32 dma_fifo_mask;
282	void __iomem *uar_map;
283	struct netdev_queue *txq;
284	u32 sqn;
285	u32 bf_buf_size;
12be4b21 SM	286	u16 max_inline;
12be4b21 SM	287	u16 edge;
f62b8bb8 AV	288	struct device *pdev;
	289	__be32 mkey_be;
	290	unsigned long state;
	291
	292	/* control path */
	293	struct mlx5_wq_ctrl wq_ctrl;
	294	struct mlx5_uar uar;
	295	struct mlx5e_channel *channel;
	296	int tc;
	297	} ____cacheline_aligned_in_smp;
	298
	299	static inline bool mlx5e_sq_has_room_for(struct mlx5e_sq *sq, u16 n)
	300	{
	301	return (((sq->wq.sz_m1 & (sq->cc - sq->pc)) >= n) \|\|
	302	(sq->cc == sq->pc));
	303	}
	304
	305	enum channel_flags {
	306	MLX5E_CHANNEL_NAPI_SCHED = 1,
	307	};
	308
	309	struct mlx5e_channel {
	310	/* data path */
	311	struct mlx5e_rq rq;
	312	struct mlx5e_sq sq[MLX5E_MAX_NUM_TC];
	313	struct napi_struct napi;
	314	struct device *pdev;
	315	struct net_device *netdev;
	316	__be32 mkey_be;
	317	u8 num_tc;
	318	unsigned long flags;
03289b88	319	int tc_to_txq_map[MLX5E_MAX_NUM_TC];
f62b8bb8 AV	320
	321	/* control */
	322	struct mlx5e_priv *priv;
	323	int ix;
	324	int cpu;
	325	};
	326
	327	enum mlx5e_traffic_types {
	328	MLX5E_TT_IPV4_TCP = 0,
	329	MLX5E_TT_IPV6_TCP = 1,
	330	MLX5E_TT_IPV4_UDP = 2,
	331	MLX5E_TT_IPV6_UDP = 3,
	332	MLX5E_TT_IPV4 = 4,
	333	MLX5E_TT_IPV6 = 5,
	334	MLX5E_TT_ANY = 6,
	335	MLX5E_NUM_TT = 7,
	336	};
	337
	338	enum {
	339	MLX5E_RQT_SPREADING = 0,
	340	MLX5E_RQT_DEFAULT_RQ = 1,
	341	MLX5E_NUM_RQT = 2,
	342	};
	343
	344	struct mlx5e_eth_addr_info {
	345	u8 addr[ETH_ALEN + 2];
	346	u32 tt_vec;
	347	u32 ft_ix[MLX5E_NUM_TT]; /* flow table index per traffic type */
	348	};
	349
	350	#define MLX5E_ETH_ADDR_HASH_SIZE (1 << BITS_PER_BYTE)
	351
	352	struct mlx5e_eth_addr_db {
	353	struct hlist_head netdev_uc[MLX5E_ETH_ADDR_HASH_SIZE];
	354	struct hlist_head netdev_mc[MLX5E_ETH_ADDR_HASH_SIZE];
	355	struct mlx5e_eth_addr_info broadcast;
	356	struct mlx5e_eth_addr_info allmulti;
	357	struct mlx5e_eth_addr_info promisc;
	358	bool broadcast_enabled;
	359	bool allmulti_enabled;
	360	bool promisc_enabled;
	361	};
	362
	363	enum {
	364	MLX5E_STATE_ASYNC_EVENTS_ENABLE,
	365	MLX5E_STATE_OPENED,
	366	};
	367
	368	struct mlx5e_vlan_db {
	369	unsigned long active_vlans[BITS_TO_LONGS(VLAN_N_VID)];
	370	u32 active_vlans_ft_ix[VLAN_N_VID];
	371	u32 untagged_rule_ft_ix;
	372	u32 any_vlan_rule_ft_ix;
	373	bool filter_disabled;
	374	};
	375
	376	struct mlx5e_flow_table {
	377	void *vlan;
	378	void *main;
	379	};
	380
	381	struct mlx5e_priv {
	382	/* priv data path fields - start */
f62b8bb8 AV	383	int num_tc;
f62b8bb8 AV	384	int default_vlan_prio;
03289b88	385	struct mlx5e_sq **txq_to_sq_map;
f62b8bb8 AV	386	/* priv data path fields - end */
	387
	388	unsigned long state;
	389	struct mutex state_lock; /* Protects Interface state */
	390	struct mlx5_uar cq_uar;
	391	u32 pdn;
3191e05f	392	u32 tdn;
f62b8bb8 AV	393	struct mlx5_core_mr mr;
	394
	395	struct mlx5e_channel **channel;
	396	u32 tisn[MLX5E_MAX_NUM_TC];
	397	u32 rqtn;
	398	u32 tirn[MLX5E_NUM_TT];
	399
	400	struct mlx5e_flow_table ft;
	401	struct mlx5e_eth_addr_db eth_addr;
	402	struct mlx5e_vlan_db vlan;
	403
	404	struct mlx5e_params params;
	405	spinlock_t async_events_spinlock; /* sync hw events */
	406	struct work_struct update_carrier_work;
	407	struct work_struct set_rx_mode_work;
	408	struct delayed_work update_stats_work;
	409
	410	struct mlx5_core_dev *mdev;
	411	struct net_device *netdev;
	412	struct mlx5e_stats stats;
	413	};
	414
	415	#define MLX5E_NET_IP_ALIGN 2
	416
	417	struct mlx5e_tx_wqe {
	418	struct mlx5_wqe_ctrl_seg ctrl;
	419	struct mlx5_wqe_eth_seg eth;
	420	};
	421
	422	struct mlx5e_rx_wqe {
	423	struct mlx5_wqe_srq_next_seg next;
	424	struct mlx5_wqe_data_seg data;
	425	};
	426
	427	enum mlx5e_link_mode {
	428	MLX5E_1000BASE_CX_SGMII = 0,
	429	MLX5E_1000BASE_KX = 1,
	430	MLX5E_10GBASE_CX4 = 2,
	431	MLX5E_10GBASE_KX4 = 3,
	432	MLX5E_10GBASE_KR = 4,
	433	MLX5E_20GBASE_KR2 = 5,
	434	MLX5E_40GBASE_CR4 = 6,
	435	MLX5E_40GBASE_KR4 = 7,
	436	MLX5E_56GBASE_R4 = 8,
	437	MLX5E_10GBASE_CR = 12,
	438	MLX5E_10GBASE_SR = 13,
	439	MLX5E_10GBASE_ER = 14,
	440	MLX5E_40GBASE_SR4 = 15,
	441	MLX5E_40GBASE_LR4 = 16,
	442	MLX5E_100GBASE_CR4 = 20,
	443	MLX5E_100GBASE_SR4 = 21,
	444	MLX5E_100GBASE_KR4 = 22,
	445	MLX5E_100GBASE_LR4 = 23,
	446	MLX5E_100BASE_TX = 24,
	447	MLX5E_100BASE_T = 25,
	448	MLX5E_10GBASE_T = 26,
	449	MLX5E_25GBASE_CR = 27,
	450	MLX5E_25GBASE_KR = 28,
	451	MLX5E_25GBASE_SR = 29,
	452	MLX5E_50GBASE_CR2 = 30,
	453	MLX5E_50GBASE_KR2 = 31,
	454	MLX5E_LINK_MODES_NUMBER,
	455	};
	456
457	#define MLX5E_PROT_MASK(link_mode) (1 << link_mode)
458
12be4b21	459	void mlx5e_send_nop(struct mlx5e_sq *sq, bool notify_hw);
f62b8bb8 AV	460	u16 mlx5e_select_queue(struct net_device dev, struct sk_buff skb,
	461	void *accel_priv, select_queue_fallback_t fallback);
	462	netdev_tx_t mlx5e_xmit(struct sk_buff skb, struct net_device dev);
f62b8bb8 AV	463
	464	void mlx5e_completion_event(struct mlx5_core_cq *mcq);
	465	void mlx5e_cq_error_event(struct mlx5_core_cq *mcq, enum mlx5_event event);
	466	int mlx5e_napi_poll(struct napi_struct *napi, int budget);
	467	bool mlx5e_poll_tx_cq(struct mlx5e_cq *cq);
	468	bool mlx5e_poll_rx_cq(struct mlx5e_cq *cq, int budget);
	469	bool mlx5e_post_rx_wqes(struct mlx5e_rq *rq);
	470	struct mlx5_cqe64 mlx5e_get_cqe(struct mlx5e_cq cq);
	471
	472	void mlx5e_update_stats(struct mlx5e_priv *priv);
	473
	474	int mlx5e_open_flow_table(struct mlx5e_priv *priv);
	475	void mlx5e_close_flow_table(struct mlx5e_priv *priv);
	476	void mlx5e_init_eth_addr(struct mlx5e_priv *priv);
	477	void mlx5e_set_rx_mode_core(struct mlx5e_priv *priv);
	478	void mlx5e_set_rx_mode_work(struct work_struct *work);
	479
	480	int mlx5e_vlan_rx_add_vid(struct net_device *dev, __always_unused __be16 proto,
	481	u16 vid);
	482	int mlx5e_vlan_rx_kill_vid(struct net_device *dev, __always_unused __be16 proto,
	483	u16 vid);
	484	void mlx5e_enable_vlan_filter(struct mlx5e_priv *priv);
	485	void mlx5e_disable_vlan_filter(struct mlx5e_priv *priv);
	486	int mlx5e_add_all_vlan_rules(struct mlx5e_priv *priv);
	487	void mlx5e_del_all_vlan_rules(struct mlx5e_priv *priv);
	488
	489	int mlx5e_open_locked(struct net_device *netdev);
	490	int mlx5e_close_locked(struct net_device *netdev);
	491	int mlx5e_update_priv_params(struct mlx5e_priv *priv,
	492	struct mlx5e_params *new_params);
	493
	494	static inline void mlx5e_tx_notify_hw(struct mlx5e_sq *sq,
	495	struct mlx5e_tx_wqe *wqe)
	496	{
	497	/* ensure wqe is visible to device before updating doorbell record */
	498	dma_wmb();
	499
	500	*sq->wq.db = cpu_to_be32(sq->pc);
	501
	502	/* ensure doorbell record is visible to device before ringing the
	503	* doorbell
	504	*/
	505	wmb();
	506
	507	mlx5_write64((__be32 *)&wqe->ctrl,
	508	sq->uar_map + MLX5_BF_OFFSET + sq->bf_offset,
	509	NULL);
	510
	511	sq->bf_offset ^= sq->bf_buf_size;
	512	}
	513
	514	static inline void mlx5e_cq_arm(struct mlx5e_cq *cq)
	515	{
	516	struct mlx5_core_cq *mcq;
	517
	518	mcq = &cq->mcq;
	519	mlx5_cq_arm(mcq, MLX5_CQ_DB_REQ_NOT, mcq->uar->map, NULL, cq->wq.cc);
	520	}
	521
	522	extern const struct ethtool_ops mlx5e_ethtool_ops;