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Release 4.11 drivers/net/ethernet/mellanox/mlx4/mlx4_en.h

Directory: drivers/net/ethernet/mellanox/mlx4
/*
 * Copyright (c) 2007 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 _MLX4_EN_H_

#define _MLX4_EN_H_

#include <linux/bitops.h>
#include <linux/compiler.h>
#include <linux/list.h>
#include <linux/mutex.h>
#include <linux/netdevice.h>
#include <linux/if_vlan.h>
#include <linux/net_tstamp.h>
#ifdef CONFIG_MLX4_EN_DCB
#include <linux/dcbnl.h>
#endif
#include <linux/cpu_rmap.h>
#include <linux/ptp_clock_kernel.h>

#include <linux/mlx4/device.h>
#include <linux/mlx4/qp.h>
#include <linux/mlx4/cq.h>
#include <linux/mlx4/srq.h>
#include <linux/mlx4/doorbell.h>
#include <linux/mlx4/cmd.h>

#include "en_port.h"
#include "mlx4_stats.h"


#define DRV_NAME	"mlx4_en"

#define DRV_VERSION	"2.2-1"

#define DRV_RELDATE	"Feb 2014"


#define MLX4_EN_MSG_LEVEL	(NETIF_MSG_LINK | NETIF_MSG_IFDOWN)

/*
 * Device constants
 */



#define MLX4_EN_PAGE_SHIFT	12

#define MLX4_EN_PAGE_SIZE	(1 << MLX4_EN_PAGE_SHIFT)

#define DEF_RX_RINGS		16

#define MAX_RX_RINGS		128

#define MIN_RX_RINGS		4

#define TXBB_SIZE		64

#define HEADROOM		(2048 / TXBB_SIZE + 1)

#define STAMP_STRIDE		64

#define STAMP_DWORDS		(STAMP_STRIDE / 4)

#define STAMP_SHIFT		31

#define STAMP_VAL		0x7fffffff

#define STATS_DELAY		(HZ / 4)

#define SERVICE_TASK_DELAY	(HZ / 4)

#define MAX_NUM_OF_FS_RULES	256


#define MLX4_EN_FILTER_HASH_SHIFT 4

#define MLX4_EN_FILTER_EXPIRY_QUOTA 60

/* Typical TSO descriptor with 16 gather entries is 352 bytes... */

#define MAX_DESC_SIZE		512

#define MAX_DESC_TXBBS		(MAX_DESC_SIZE / TXBB_SIZE)

/*
 * OS related constants and tunables
 */


#define MLX4_EN_PRIV_FLAGS_BLUEFLAME 1

#define MLX4_EN_PRIV_FLAGS_PHV	     2


#define MLX4_EN_WATCHDOG_TIMEOUT	(15 * HZ)

/* Use the maximum between 16384 and a single page */

#define MLX4_EN_ALLOC_SIZE	PAGE_ALIGN(16384)


#define MLX4_EN_ALLOC_PREFER_ORDER min_t(int, get_order(32768),            \
                                         PAGE_ALLOC_COSTLY_ORDER)

/* Receive fragment sizes; we use at most 3 fragments (for 9600 byte MTU
 * and 4K allocations) */
enum {
	
FRAG_SZ0 = 1536 - NET_IP_ALIGN,
	
FRAG_SZ1 = 4096,
	
FRAG_SZ2 = 4096,
	
FRAG_SZ3 = MLX4_EN_ALLOC_SIZE
};

#define MLX4_EN_MAX_RX_FRAGS	4

/* Maximum ring sizes */

#define MLX4_EN_MAX_TX_SIZE	8192

#define MLX4_EN_MAX_RX_SIZE	8192

/* Minimum ring size for our page-allocation scheme to work */

#define MLX4_EN_MIN_RX_SIZE	(MLX4_EN_ALLOC_SIZE / SMP_CACHE_BYTES)

#define MLX4_EN_MIN_TX_SIZE	(4096 / TXBB_SIZE)


#define MLX4_EN_SMALL_PKT_SIZE		64

#define MLX4_EN_MIN_TX_RING_P_UP	1

#define MLX4_EN_MAX_TX_RING_P_UP	32

#define MLX4_EN_NUM_UP			8

#define MLX4_EN_DEF_TX_RING_SIZE	512

#define MLX4_EN_DEF_RX_RING_SIZE  	1024

#define MAX_TX_RINGS			(MLX4_EN_MAX_TX_RING_P_UP * \
                                         MLX4_EN_NUM_UP)


#define MLX4_EN_DEFAULT_TX_WORK		256

#define MLX4_EN_DOORBELL_BUDGET		8

/* Target number of packets to coalesce with interrupt moderation */

#define MLX4_EN_RX_COAL_TARGET	44

#define MLX4_EN_RX_COAL_TIME	0x10


#define MLX4_EN_TX_COAL_PKTS	16

#define MLX4_EN_TX_COAL_TIME	0x10


#define MLX4_EN_RX_RATE_LOW		400000

#define MLX4_EN_RX_COAL_TIME_LOW	0

#define MLX4_EN_RX_RATE_HIGH		450000

#define MLX4_EN_RX_COAL_TIME_HIGH	128

#define MLX4_EN_RX_SIZE_THRESH		1024

#define MLX4_EN_RX_RATE_THRESH		(1000000 / MLX4_EN_RX_COAL_TIME_HIGH)

#define MLX4_EN_SAMPLE_INTERVAL		0

#define MLX4_EN_AVG_PKT_SMALL		256


#define MLX4_EN_AUTO_CONF	0xffff


#define MLX4_EN_DEF_RX_PAUSE	1

#define MLX4_EN_DEF_TX_PAUSE	1

/* Interval between successive polls in the Tx routine when polling is used
   instead of interrupts (in per-core Tx rings) - should be power of 2 */

#define MLX4_EN_TX_POLL_MODER	16

#define MLX4_EN_TX_POLL_TIMEOUT	(HZ / 4)


#define SMALL_PACKET_SIZE      (256 - NET_IP_ALIGN)

#define HEADER_COPY_SIZE       (128 - NET_IP_ALIGN)

#define MLX4_LOOPBACK_TEST_PAYLOAD (HEADER_COPY_SIZE - ETH_HLEN)


#define MLX4_EN_MIN_MTU		46
/* VLAN_HLEN is added twice,to support skb vlan tagged with multiple
 * headers. (For example: ETH_P_8021Q and ETH_P_8021AD).
 */

#define MLX4_EN_EFF_MTU(mtu)	((mtu) + ETH_HLEN + (2 * VLAN_HLEN))

#define ETH_BCAST		0xffffffffffffULL


#define MLX4_EN_LOOPBACK_RETRIES	5

#define MLX4_EN_LOOPBACK_TIMEOUT	100

#ifdef MLX4_EN_PERF_STAT
/* Number of samples to 'average' */

#define AVG_SIZE			128

#define AVG_FACTOR			1024


#define INC_PERF_COUNTER(cnt)		(++(cnt))

#define ADD_PERF_COUNTER(cnt, add)	((cnt) += (add))

#define AVG_PERF_COUNTER(cnt, sample) \
	((cnt) = ((cnt) * (AVG_SIZE - 1) + (sample) * AVG_FACTOR) / AVG_SIZE)

#define GET_PERF_COUNTER(cnt)		(cnt)

#define GET_AVG_PERF_COUNTER(cnt)	((cnt) / AVG_FACTOR)

#else


#define INC_PERF_COUNTER(cnt)		do {} while (0)

#define ADD_PERF_COUNTER(cnt, add)	do {} while (0)

#define AVG_PERF_COUNTER(cnt, sample)	do {} while (0)

#define GET_PERF_COUNTER(cnt)		(0)

#define GET_AVG_PERF_COUNTER(cnt)	(0)
#endif /* MLX4_EN_PERF_STAT */

/* Constants for TX flow */
enum {
	
MAX_INLINE = 104, /* 128 - 16 - 4 - 4 */
	
MAX_BF = 256,
	
MIN_PKT_LEN = 17,
};

/*
 * Configurables
 */


enum cq_type {
	/* keep tx types first */
	
TX,
	
TX_XDP,

#define MLX4_EN_NUM_TX_TYPES (TX_XDP + 1)
	
RX,
};


/*
 * Useful macros
 */

#define ROUNDUP_LOG2(x)		ilog2(roundup_pow_of_two(x))

#define XNOR(x, y)		(!(x) == !(y))



struct mlx4_en_tx_info {
	union {
		
struct sk_buff *skb;
		
struct page *page;
	};
	
dma_addr_t	map0_dma;
	
u32		map0_byte_count;
	
u32		nr_txbb;
	
u32		nr_bytes;
	
u8		linear;
	
u8		data_offset;
	
u8		inl;
	
u8		ts_requested;
	
u8		nr_maps;
} 
____cacheline_aligned_in_smp;



#define MLX4_EN_BIT_DESC_OWN	0x80000000

#define CTRL_SIZE	sizeof(struct mlx4_wqe_ctrl_seg)

#define MLX4_EN_MEMTYPE_PAD	0x100

#define DS_SIZE		sizeof(struct mlx4_wqe_data_seg)



struct mlx4_en_tx_desc {
	
struct mlx4_wqe_ctrl_seg ctrl;
	union {
		
struct mlx4_wqe_data_seg data; /* at least one data segment */
		
struct mlx4_wqe_lso_seg lso;
		
struct mlx4_wqe_inline_seg inl;
	};
};


#define MLX4_EN_USE_SRQ		0x01000000


#define MLX4_EN_CX3_LOW_ID	0x1000

#define MLX4_EN_CX3_HIGH_ID	0x1005


struct mlx4_en_rx_alloc {
	
struct page	*page;
	
dma_addr_t	dma;
	
u32		page_offset;
	
u32		page_size;
};


#define MLX4_EN_CACHE_SIZE (2 * NAPI_POLL_WEIGHT)

struct mlx4_en_page_cache {
	
u32 index;
	
struct mlx4_en_rx_alloc buf[MLX4_EN_CACHE_SIZE];
};

struct mlx4_en_priv;


struct mlx4_en_tx_ring {
	/* cache line used and dirtied in tx completion
         * (mlx4_en_free_tx_buf())
         */
	
u32			last_nr_txbb;
	
u32			cons;
	
unsigned long		wake_queue;
	
struct netdev_queue	*tx_queue;
	
u32			(*free_tx_desc)(struct mlx4_en_priv *priv,
						struct mlx4_en_tx_ring *ring,
						int index, u8 owner,
						u64 timestamp, int napi_mode);
	
struct mlx4_en_rx_ring	*recycle_ring;

	/* cache line used and dirtied in mlx4_en_xmit() */
	
u32			prod ____cacheline_aligned_in_smp;
	
unsigned int		tx_dropped;
	
unsigned long		bytes;
	
unsigned long		packets;
	
unsigned long		tx_csum;
	
unsigned long		tso_packets;
	
unsigned long		xmit_more;
	
struct mlx4_bf		bf;

	/* Following part should be mostly read */
	
__be32			doorbell_qpn;
	
__be32			mr_key;
	
u32			size; /* number of TXBBs */
	
u32			size_mask;
	
u32			full_size;
	
u32			buf_size;
	
void			*buf;
	
struct mlx4_en_tx_info	*tx_info;
	
int			qpn;
	
u8			queue_index;
	
bool			bf_enabled;
	
bool			bf_alloced;
	
u8			hwtstamp_tx_type;
	
u8			*bounce_buf;

	/* Not used in fast path
         * Only queue_stopped might be used if BQL is not properly working.
         */
	
unsigned long		queue_stopped;
	
struct mlx4_hwq_resources sp_wqres;
	
struct mlx4_qp		sp_qp;
	
struct mlx4_qp_context	sp_context;
	
cpumask_t		sp_affinity_mask;
	
enum mlx4_qp_state	sp_qp_state;
	
u16			sp_stride;
	
u16			sp_cqn;	/* index of port CQ associated with this ring */
} 
____cacheline_aligned_in_smp;


struct mlx4_en_rx_desc {
	/* actual number of entries depends on rx ring stride */
	
struct mlx4_wqe_data_seg data[0];
};


struct mlx4_en_rx_ring {
	
struct mlx4_hwq_resources wqres;
	
struct mlx4_en_rx_alloc page_alloc[MLX4_EN_MAX_RX_FRAGS];
	
u32 size ;	/* number of Rx descs*/
	
u32 actual_size;
	
u32 size_mask;
	
u16 stride;
	
u16 log_stride;
	
u16 cqn;	/* index of port CQ associated with this ring */
	
u32 prod;
	
u32 cons;
	
u32 buf_size;
	
u8  fcs_del;
	
void *buf;
	
void *rx_info;
	
struct bpf_prog __rcu *xdp_prog;
	
struct mlx4_en_page_cache page_cache;
	
unsigned long bytes;
	
unsigned long packets;
	
unsigned long csum_ok;
	
unsigned long csum_none;
	
unsigned long csum_complete;
	
unsigned long xdp_drop;
	
unsigned long xdp_tx;
	
unsigned long xdp_tx_full;
	
unsigned long dropped;
	
int hwtstamp_rx_filter;
	
cpumask_var_t affinity_mask;
};


struct mlx4_en_cq {
	
struct mlx4_cq          mcq;
	
struct mlx4_hwq_resources wqres;
	
int                     ring;
	
struct net_device      *dev;
	
struct napi_struct	napi;
	
int size;
	
int buf_size;
	
int vector;
	
enum cq_type type;
	
u16 moder_time;
	
u16 moder_cnt;
	
struct mlx4_cqe *buf;

#define MLX4_EN_OPCODE_ERROR	0x1e

	
struct irq_desc *irq_desc;
};


struct mlx4_en_port_profile {
	
u32 flags;
	
u32 tx_ring_num[MLX4_EN_NUM_TX_TYPES];
	
u32 rx_ring_num;
	
u32 tx_ring_size;
	
u32 rx_ring_size;
	
u8 num_tx_rings_p_up;
	
u8 rx_pause;
	
u8 rx_ppp;
	
u8 tx_pause;
	
u8 tx_ppp;
	
int rss_rings;
	
int inline_thold;
	
struct hwtstamp_config hwtstamp_config;
};


struct mlx4_en_profile {
	
int udp_rss;
	
u8 rss_mask;
	
u32 active_ports;
	
u32 small_pkt_int;
	
u8 no_reset;
	
u8 num_tx_rings_p_up;
	
struct mlx4_en_port_profile prof[MLX4_MAX_PORTS + 1];
};


struct mlx4_en_dev {
	
struct mlx4_dev         *dev;
	
struct pci_dev		*pdev;
	
struct mutex		state_lock;
	
struct net_device       *pndev[MLX4_MAX_PORTS + 1];
	
struct net_device       *upper[MLX4_MAX_PORTS + 1];
	
u32                     port_cnt;
	
bool			device_up;
	
struct mlx4_en_profile  profile;
	
u32			LSO_support;
	
struct workqueue_struct *workqueue;
	
struct device           *dma_device;
	
void __iomem            *uar_map;
	
struct mlx4_uar         priv_uar;
	
struct mlx4_mr		mr;
	
u32                     priv_pdn;
	
spinlock_t              uar_lock;
	
u8			mac_removed[MLX4_MAX_PORTS + 1];
	
u32			nominal_c_mult;
	
struct cyclecounter	cycles;
	
seqlock_t		clock_lock;
	
struct timecounter	clock;
	
unsigned long		last_overflow_check;
	
struct ptp_clock	*ptp_clock;
	
struct ptp_clock_info	ptp_clock_info;
	
struct notifier_block	nb;
};



struct mlx4_en_rss_map {
	
int base_qpn;
	
struct mlx4_qp qps[MAX_RX_RINGS];
	
enum mlx4_qp_state state[MAX_RX_RINGS];
	
struct mlx4_qp indir_qp;
	
enum mlx4_qp_state indir_state;
};


enum mlx4_en_port_flag {
	
MLX4_EN_PORT_ANC = 1<<0, /* Auto-negotiation complete */
	
MLX4_EN_PORT_ANE = 1<<1, /* Auto-negotiation enabled */
};


struct mlx4_en_port_state {
	
int link_state;
	
int link_speed;
	
int transceiver;
	
u32 flags;
};


enum mlx4_en_mclist_act {
	
MCLIST_NONE,
	
MCLIST_REM,
	
MCLIST_ADD,
};


struct mlx4_en_mc_list {
	
struct list_head	list;
	
enum mlx4_en_mclist_act	action;
	
u8			addr[ETH_ALEN];
	
u64			reg_id;
	
u64			tunnel_reg_id;
};


struct mlx4_en_frag_info {
	
u16 frag_size;
	
u16 frag_prefix_size;
	
u32 frag_stride;
	
enum dma_data_direction dma_dir;
	
u16 order;
	
u16 rx_headroom;
};

#ifdef CONFIG_MLX4_EN_DCB
/* Minimal TC BW - setting to 0 will block traffic */

#define MLX4_EN_BW_MIN 1

#define MLX4_EN_BW_MAX 100 
/* Utilize 100% of the line */


#define MLX4_EN_TC_ETS 7


enum dcb_pfc_type {
	
pfc_disabled = 0,
	
pfc_enabled_full,
	
pfc_enabled_tx,
	
pfc_enabled_rx
};


struct mlx4_en_cee_config {
	
bool	pfc_state;
	
enum	dcb_pfc_type dcb_pfc[MLX4_EN_NUM_UP];
};
#endif


struct ethtool_flow_id {
	
struct list_head list;
	
struct ethtool_rx_flow_spec flow_spec;
	
u64 id;
};

enum {
	
MLX4_EN_FLAG_PROMISC		= (1 << 0),
	
MLX4_EN_FLAG_MC_PROMISC		= (1 << 1),
	/* whether we need to enable hardware loopback by putting dmac
         * in Tx WQE
         */
	
MLX4_EN_FLAG_ENABLE_HW_LOOPBACK	= (1 << 2),
	/* whether we need to drop packets that hardware loopback-ed */
	
MLX4_EN_FLAG_RX_FILTER_NEEDED	= (1 << 3),
	
MLX4_EN_FLAG_FORCE_PROMISC	= (1 << 4),
	
MLX4_EN_FLAG_RX_CSUM_NON_TCP_UDP	= (1 << 5),
#ifdef CONFIG_MLX4_EN_DCB
	
MLX4_EN_FLAG_DCB_ENABLED        = (1 << 6),
#endif
};


#define PORT_BEACON_MAX_LIMIT (65535)

#define MLX4_EN_MAC_HASH_SIZE (1 << BITS_PER_BYTE)

#define MLX4_EN_MAC_HASH_IDX 5


struct mlx4_en_stats_bitmap {
	DECLARE_BITMAP(bitmap, NUM_ALL_STATS);
	
struct mutex mutex; /* for mutual access to stats bitmap */
};


struct mlx4_en_priv {
	
struct mlx4_en_dev *mdev;
	
struct mlx4_en_port_profile *prof;
	
struct net_device *dev;
	
unsigned long active_vlans[BITS_TO_LONGS(VLAN_N_VID)];
	
struct mlx4_en_port_state port_state;
	
spinlock_t stats_lock;
	
struct ethtool_flow_id ethtool_rules[MAX_NUM_OF_FS_RULES];
	/* To allow rules removal while port is going down */
	
struct list_head ethtool_list;

	
unsigned long last_moder_packets[MAX_RX_RINGS];
	
unsigned long last_moder_tx_packets;
	
unsigned long last_moder_bytes[MAX_RX_RINGS];
	
unsigned long last_moder_jiffies;
	
int last_moder_time[MAX_RX_RINGS];
	
u16 rx_usecs;
	
u16 rx_frames;
	
u16 tx_usecs;
	
u16 tx_frames;
	
u32 pkt_rate_low;
	
u16 rx_usecs_low;
	
u32 pkt_rate_high;
	
u16 rx_usecs_high;
	
u16 sample_interval;
	
u16 adaptive_rx_coal;
	
u32 msg_enable;
	
u32 loopback_ok;
	
u32 validate_loopback;

	
struct mlx4_hwq_resources res;
	
int link_state;
	
int last_link_state;
	
bool port_up;
	
int port;
	
int registered;
	
int allocated;
	
int stride;
	
unsigned char current_mac[ETH_ALEN + 2];
	
int mac_index;
	
unsigned max_mtu;
	
int base_qpn;
	
int cqe_factor;
	
int cqe_size;

	
struct mlx4_en_rss_map rss_map;
	
__be32 ctrl_flags;
	
u32 flags;
	
u8 num_tx_rings_p_up;
	
u32 tx_work_limit;
	
u32 tx_ring_num[MLX4_EN_NUM_TX_TYPES];
	
u32 rx_ring_num;
	
u32 rx_skb_size;
	
struct mlx4_en_frag_info frag_info[MLX4_EN_MAX_RX_FRAGS];
	
u16 num_frags;
	
u16 log_rx_info;

	
struct mlx4_en_tx_ring **tx_ring[MLX4_EN_NUM_TX_TYPES];
	
struct mlx4_en_rx_ring *rx_ring[MAX_RX_RINGS];
	
struct mlx4_en_cq **tx_cq[MLX4_EN_NUM_TX_TYPES];
	
struct mlx4_en_cq *rx_cq[MAX_RX_RINGS];
	
struct mlx4_qp drop_qp;
	
struct work_struct rx_mode_task;
	
struct work_struct watchdog_task;
	
struct work_struct linkstate_task;
	
struct delayed_work stats_task;
	
struct delayed_work service_task;
	
struct work_struct vxlan_add_task;
	
struct work_struct vxlan_del_task;
	
struct mlx4_en_perf_stats pstats;
	
struct mlx4_en_pkt_stats pkstats;
	
struct mlx4_en_counter_stats pf_stats;
	
struct mlx4_en_flow_stats_rx rx_priority_flowstats[MLX4_NUM_PRIORITIES];
	
struct mlx4_en_flow_stats_tx tx_priority_flowstats[MLX4_NUM_PRIORITIES];
	
struct mlx4_en_flow_stats_rx rx_flowstats;
	
struct mlx4_en_flow_stats_tx tx_flowstats;
	
struct mlx4_en_port_stats port_stats;
	
struct mlx4_en_xdp_stats xdp_stats;
	
struct mlx4_en_stats_bitmap stats_bitmap;
	
struct list_head mc_list;
	
struct list_head curr_list;
	
u64 broadcast_id;
	
struct mlx4_en_stat_out_mbox hw_stats;
	
int vids[128];
	
bool wol;
	
struct device *ddev;
	
struct hlist_head mac_hash[MLX4_EN_MAC_HASH_SIZE];
	
struct hwtstamp_config hwtstamp_config;
	
u32 counter_index;

#ifdef CONFIG_MLX4_EN_DCB

#define MLX4_EN_DCB_ENABLED	0x3
	
struct ieee_ets ets;
	
u16 maxrate[IEEE_8021QAZ_MAX_TCS];
	
enum dcbnl_cndd_states cndd_state[IEEE_8021QAZ_MAX_TCS];
	
struct mlx4_en_cee_config cee_config;
	
u8 dcbx_cap;
#endif
#ifdef CONFIG_RFS_ACCEL
	
spinlock_t filters_lock;
	
int last_filter_id;
	
struct list_head filters;
	
struct hlist_head filter_hash[1 << MLX4_EN_FILTER_HASH_SHIFT];
#endif
	
u64 tunnel_reg_id;
	
__be16 vxlan_port;

	
u32 pflags;
	
u8 rss_key[MLX4_EN_RSS_KEY_SIZE];
	
u8 rss_hash_fn;
};


enum mlx4_en_wol {
	
MLX4_EN_WOL_MAGIC = (1ULL << 61),
	
MLX4_EN_WOL_ENABLED = (1ULL << 62),
};


struct mlx4_mac_entry {
	
struct hlist_node hlist;
	
unsigned char mac[ETH_ALEN + 2];
	
u64 reg_id;
	
struct rcu_head rcu;
};




static inline struct mlx4_cqe *mlx4_en_get_cqe(void *buf, int idx, int cqe_sz)
{
	return buf + idx * cqe_sz;
}


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#define MLX4_EN_WOL_DO_MODIFY (1ULL << 63)

void mlx4_en_init_ptys2ethtool_map(void);
void mlx4_en_update_loopback_state(struct net_device *dev,
				   netdev_features_t features);

void mlx4_en_destroy_netdev(struct net_device *dev);
int mlx4_en_init_netdev(struct mlx4_en_dev *mdev, int port,
			struct mlx4_en_port_profile *prof);

int mlx4_en_start_port(struct net_device *dev);
void mlx4_en_stop_port(struct net_device *dev, int detach);

void mlx4_en_set_stats_bitmap(struct mlx4_dev *dev,
			      struct mlx4_en_stats_bitmap *stats_bitmap,
			      u8 rx_ppp, u8 rx_pause,
			      u8 tx_ppp, u8 tx_pause);

int mlx4_en_try_alloc_resources(struct mlx4_en_priv *priv,
				struct mlx4_en_priv *tmp,
				struct mlx4_en_port_profile *prof,
				bool carry_xdp_prog);
void mlx4_en_safe_replace_resources(struct mlx4_en_priv *priv,
				    struct mlx4_en_priv *tmp);

int mlx4_en_create_cq(struct mlx4_en_priv *priv, struct mlx4_en_cq **pcq,
		      int entries, int ring, enum cq_type mode, int node);
void mlx4_en_destroy_cq(struct mlx4_en_priv *priv, struct mlx4_en_cq **pcq);
int mlx4_en_activate_cq(struct mlx4_en_priv *priv, struct mlx4_en_cq *cq,
			int cq_idx);
void mlx4_en_deactivate_cq(struct mlx4_en_priv *priv, struct mlx4_en_cq *cq);
int mlx4_en_set_cq_moder(struct mlx4_en_priv *priv, struct mlx4_en_cq *cq);
int mlx4_en_arm_cq(struct mlx4_en_priv *priv, struct mlx4_en_cq *cq);

void mlx4_en_tx_irq(struct mlx4_cq *mcq);
u16 mlx4_en_select_queue(struct net_device *dev, struct sk_buff *skb,
			 void *accel_priv, select_queue_fallback_t fallback);
netdev_tx_t mlx4_en_xmit(struct sk_buff *skb, struct net_device *dev);
netdev_tx_t mlx4_en_xmit_frame(struct mlx4_en_rx_ring *rx_ring,
			       struct mlx4_en_rx_alloc *frame,
			       struct net_device *dev, unsigned int length,
			       int tx_ind, int *doorbell_pending);
void mlx4_en_xmit_doorbell(struct mlx4_en_tx_ring *ring);
bool mlx4_en_rx_recycle(struct mlx4_en_rx_ring *ring,
			struct mlx4_en_rx_alloc *frame);

int mlx4_en_create_tx_ring(struct mlx4_en_priv *priv,
			   struct mlx4_en_tx_ring **pring,
			   u32 size, u16 stride,
			   int node, int queue_index);
void mlx4_en_destroy_tx_ring(struct mlx4_en_priv *priv,
			     struct mlx4_en_tx_ring **pring);
int mlx4_en_activate_tx_ring(struct mlx4_en_priv *priv,
			     struct mlx4_en_tx_ring *ring,
			     int cq, int user_prio);
void mlx4_en_deactivate_tx_ring(struct mlx4_en_priv *priv,
				struct mlx4_en_tx_ring *ring);
void mlx4_en_set_num_rx_rings(struct mlx4_en_dev *mdev);
void mlx4_en_recover_from_oom(struct mlx4_en_priv *priv);
int mlx4_en_create_rx_ring(struct mlx4_en_priv *priv,
			   struct mlx4_en_rx_ring **pring,
			   u32 size, u16 stride, int node);
void mlx4_en_destroy_rx_ring(struct mlx4_en_priv *priv,
			     struct mlx4_en_rx_ring **pring,
			     u32 size, u16 stride);
int mlx4_en_activate_rx_rings(struct mlx4_en_priv *priv);
void mlx4_en_deactivate_rx_ring(struct mlx4_en_priv *priv,
				struct mlx4_en_rx_ring *ring);
int mlx4_en_process_rx_cq(struct net_device *dev,
			  struct mlx4_en_cq *cq,
			  int budget);
int mlx4_en_poll_rx_cq(struct napi_struct *napi, int budget);
int mlx4_en_poll_tx_cq(struct napi_struct *napi, int budget);
u32 mlx4_en_free_tx_desc(struct mlx4_en_priv *priv,
			 struct mlx4_en_tx_ring *ring,
			 int index, u8 owner, u64 timestamp,
			 int napi_mode);
u32 mlx4_en_recycle_tx_desc(struct mlx4_en_priv *priv,
			    struct mlx4_en_tx_ring *ring,
			    int index, u8 owner, u64 timestamp,
			    int napi_mode);
void mlx4_en_fill_qp_context(struct mlx4_en_priv *priv, int size, int stride,
		int is_tx, int rss, int qpn, int cqn, int user_prio,
		struct mlx4_qp_context *context);
void mlx4_en_sqp_event(struct mlx4_qp *qp, enum mlx4_event event);
int mlx4_en_change_mcast_lb(struct mlx4_en_priv *priv, struct mlx4_qp *qp,
			    int loopback);
void mlx4_en_calc_rx_buf(struct net_device *dev);
int mlx4_en_config_rss_steer(struct mlx4_en_priv *priv);
void mlx4_en_release_rss_steer(struct mlx4_en_priv *priv);
int mlx4_en_create_drop_qp(struct mlx4_en_priv *priv);
void mlx4_en_destroy_drop_qp(struct mlx4_en_priv *priv);
int mlx4_en_free_tx_buf(struct net_device *dev, struct mlx4_en_tx_ring *ring);
void mlx4_en_rx_irq(struct mlx4_cq *mcq);

int mlx4_SET_MCAST_FLTR(struct mlx4_dev *dev, u8 port, u64 mac, u64 clear, u8 mode);
int mlx4_SET_VLAN_FLTR(struct mlx4_dev *dev, struct mlx4_en_priv *priv);

void mlx4_en_fold_software_stats(struct net_device *dev);
int mlx4_en_DUMP_ETH_STATS(struct mlx4_en_dev *mdev, u8 port, u8 reset);
int mlx4_en_QUERY_PORT(struct mlx4_en_dev *mdev, u8 port);

#ifdef CONFIG_MLX4_EN_DCB
extern const struct dcbnl_rtnl_ops mlx4_en_dcbnl_ops;
extern const struct dcbnl_rtnl_ops mlx4_en_dcbnl_pfc_ops;
#endif

int mlx4_en_setup_tc(struct net_device *dev, u8 up);

#ifdef CONFIG_RFS_ACCEL
void mlx4_en_cleanup_filters(struct mlx4_en_priv *priv);
#endif


#define MLX4_EN_NUM_SELF_TEST	5
void mlx4_en_ex_selftest(struct net_device *dev, u32 *flags, u64 *buf);
void mlx4_en_ptp_overflow_check(struct mlx4_en_dev *mdev);


#define DEV_FEATURE_CHANGED(dev, new_features, feature) \
	((dev->features & feature) ^ (new_features & feature))

int mlx4_en_reset_config(struct net_device *dev,
			 struct hwtstamp_config ts_config,
			 netdev_features_t new_features);
void mlx4_en_update_pfc_stats_bitmap(struct mlx4_dev *dev,
				     struct mlx4_en_stats_bitmap *stats_bitmap,
				     u8 rx_ppp, u8 rx_pause,
				     u8 tx_ppp, u8 tx_pause);
int mlx4_en_netdev_event(struct notifier_block *this,
			 unsigned long event, void *ptr);

/*
 * Functions for time stamping
 */
u64 mlx4_en_get_cqe_ts(struct mlx4_cqe *cqe);
void mlx4_en_fill_hwtstamps(struct mlx4_en_dev *mdev,
			    struct skb_shared_hwtstamps *hwts,
			    u64 timestamp);
void mlx4_en_init_timestamp(struct mlx4_en_dev *mdev);
void mlx4_en_remove_timestamp(struct mlx4_en_dev *mdev);

/* Globals
 */
extern const struct ethtool_ops mlx4_en_ethtool_ops;



/*
 * printk / logging functions
 */

__printf(3, 4)
void en_print(const char *level, const struct mlx4_en_priv *priv,
	      const char *format, ...);


#define en_dbg(mlevel, priv, format, ...)				\
do {                                                                    \
        if (NETIF_MSG_##mlevel & (priv)->msg_enable)                    \
                en_print(KERN_DEBUG, priv, format, ##__VA_ARGS__);      \
} while (0)

#define en_warn(priv, format, ...)					\
	en_print(KERN_WARNING, priv, format, ##__VA_ARGS__)

#define en_err(priv, format, ...)					\
	en_print(KERN_ERR, priv, format, ##__VA_ARGS__)

#define en_info(priv, format, ...)					\
	en_print(KERN_INFO, priv, format, ##__VA_ARGS__)


#define mlx4_err(mdev, format, ...)					\
	pr_err(DRV_NAME " %s: " format,                                 \
               dev_name(&(mdev)->pdev->dev), ##__VA_ARGS__)

#define mlx4_info(mdev, format, ...)					\
	pr_info(DRV_NAME " %s: " format,                                \
                dev_name(&(mdev)->pdev->dev), ##__VA_ARGS__)

#define mlx4_warn(mdev, format, ...)					\
	pr_warn(DRV_NAME " %s: " format,                                \
                dev_name(&(mdev)->pdev->dev), ##__VA_ARGS__)

#endif

Overall Contributors
PersonTokensPropCommitsCommitProp
Yevgeny Petrilin164053.02%2519.84%


Amir Vadai2598.37%1612.70%


Eric Dumazet1655.33%107.94%


Brenden Blanco1605.17%43.17%


Joe Perches1043.36%43.17%


Yan Burman1043.36%64.76%


Eugenia Emantayev842.72%64.76%


Hadar Hen Zion642.07%53.97%


Matan Barak611.97%21.59%


Ido Shamay571.84%64.76%


Saeed Mahameed511.65%21.59%


Tariq Toukan511.65%43.17%


Rana Shahout471.52%10.79%


Eran Ben Elisha471.52%64.76%


Moni Shoua311.00%10.79%


Or Gerlitz311.00%64.76%


Shawn Bohrer240.78%10.79%


Shani Michaelli190.61%21.59%


Jiri Pirko180.58%21.59%


Maor Gottlieb160.52%10.79%


Thadeu Lima de Souza Cascardo130.42%32.38%


Alexander Guller120.39%21.59%


Martin KaFai Lau70.23%21.59%


Eli Cohen60.19%10.79%


David Decotigny60.19%10.79%


Jason (Hui) Wang40.13%10.79%


Yuval Atias30.10%10.79%


Daniel Borkmann30.10%10.79%


Eyal Perry30.10%10.79%


Noa Osherovich10.03%10.79%


André Goddard Rosa10.03%10.79%


Stephen Hemminger10.03%10.79%


Total3093100.00%126100.00%


Directory: drivers/net/ethernet/mellanox/mlx4



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