d/freebsd-dev
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity
e2835957c4
freebsd-dev/sys/ofed/drivers/net/mlx4/mlx4_en.h
Hans Petter Selasky 2b8859521d Updates for the Mellanox ethernet driver 
> List of fixes:
  * use correct format for GID printouts
  * double array indexing
  * spelling in printouts
  * void pointer arithmetic
  * allow more receive rings
  * correct maximum number of transmit rings
  * use "const" instead of "static" for constants
  * check for invalid VLAN tags
  * check for lack of IRQ resources
> Added more hardware specific defines
> Added more verbose printouts of firmware status codes

Sponsored by:	Mellanox Technologies
MFC after:	3 days
2015-03-04 09:30:03 +00:00

947 lines
25 KiB
C
Raw Blame History

/*
* Copyright (c) 2007, 2014 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/kobject.h>
#include <linux/netdevice.h>
#include <linux/if_vlan.h>
#include <linux/if_ether.h>
#ifdef CONFIG_MLX4_EN_DCB
#include <linux/dcbnl.h>
#endif
#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 <netinet/tcp_lro.h>
#include "en_port.h"
#include "mlx4_stats.h"
#define DRV_NAME "mlx4_en"
#define DRV_VERSION "2.1"
#define DRV_RELDATE __DATE__
#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
#ifdef CONFIG_NET_RX_BUSY_POLL
#define LL_EXTENDED_STATS
#endif
/* vlan valid range */
#define VLAN_MIN_VALUE 1
#define VLAN_MAX_VALUE 4094
/* 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_WATCHDOG_TIMEOUT (15 * HZ)
#define MLX4_EN_ALLOC_SIZE PAGE_ALIGN(PAGE_SIZE)
#define MLX4_EN_ALLOC_ORDER get_order(MLX4_EN_ALLOC_SIZE)
enum mlx4_en_alloc_type {
MLX4_EN_ALLOC_NEW = 0,
MLX4_EN_ALLOC_REPLACEMENT = 1,
};
/* Receive fragment sizes; we use at most 3 fragments (for 9600 byte MTU
* and 4K allocations) */
#if MJUMPAGESIZE == 4096
enum {
FRAG_SZ0 = MCLBYTES,
FRAG_SZ1 = MJUMPAGESIZE,
FRAG_SZ2 = MJUMPAGESIZE,
};
#define MLX4_EN_MAX_RX_FRAGS 3
#elif MJUMPAGESIZE == 8192
enum {
FRAG_SZ0 = MCLBYTES,
FRAG_SZ1 = MJUMPAGESIZE,
};
#define MLX4_EN_MAX_RX_FRAGS 2
#elif MJUMPAGESIZE == 8192
#else
#error "Unknown PAGE_SIZE"
#endif
/* Maximum ring sizes */
#define MLX4_EN_DEF_TX_QUEUE_SIZE 4096
/* Minimum packet number till arming the CQ */
#define MLX4_EN_MIN_RX_ARM 2048
#define MLX4_EN_MIN_TX_ARM 2048
/* Maximum ring sizes */
#define MLX4_EN_MAX_TX_SIZE 8192
#define MLX4_EN_MAX_RX_SIZE 8192
/* Minimum ring sizes */
#define MLX4_EN_MIN_RX_SIZE (4096 / TXBB_SIZE)
#define MLX4_EN_MIN_TX_SIZE (4096 / TXBB_SIZE)
#define MLX4_EN_SMALL_PKT_SIZE 64
#define MLX4_EN_MAX_TX_RING_P_UP 32
#define MLX4_EN_NUM_UP 1
#define MAX_TX_RINGS (MLX4_EN_MAX_TX_RING_P_UP * \
MLX4_EN_NUM_UP)
#define MLX4_EN_DEF_TX_RING_SIZE 1024
#define MLX4_EN_DEF_RX_RING_SIZE 1024
/* Target number of bytes to coalesce with interrupt moderation */
#define MLX4_EN_RX_COAL_TARGET 0x20000
#define MLX4_EN_RX_COAL_TIME 0x10
#define MLX4_EN_TX_COAL_PKTS 64
#define MLX4_EN_TX_COAL_TIME 64
#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 MLX4_EN_64_ALIGN (64 - NET_SKB_PAD)
#define SMALL_PACKET_SIZE (256 - NET_IP_ALIGN)
#define HEADER_COPY_SIZE (128)
#define MLX4_LOOPBACK_TEST_PAYLOAD (HEADER_COPY_SIZE - ETHER_HDR_LEN)
#define MLX4_EN_MIN_MTU 46
#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 */
/*
* Configurables
*/
enum cq_type {
RX = 0,
TX = 1,
};
/*
* Useful macros
*/
#define ROUNDUP_LOG2(x) ilog2(roundup_pow_of_two(x))
#define XNOR(x, y) (!(x) == !(y))
#define ILLEGAL_MAC(addr) (addr == 0xffffffffffffULL || addr == 0x0)
struct mlx4_en_tx_info {
struct mbuf *mb;
u32 nr_txbb;
u32 nr_bytes;
u8 linear;
u8 nr_segs;
u8 data_offset;
u8 inl;
#if 0
u8 ts_requested;
#endif
};
#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_TX_BUDGET 64*4 //Compensate for no NAPI in freeBSD - might need some fine tunning in the future.
#define MLX4_EN_RX_BUDGET 64
#define MLX4_EN_CX3_LOW_ID 0x1000
#define MLX4_EN_CX3_HIGH_ID 0x1005
struct mlx4_en_tx_ring {
spinlock_t tx_lock;
struct mlx4_hwq_resources wqres;
u32 size ; /* number of TXBBs */
u32 size_mask;
u16 stride;
u16 cqn; /* index of port CQ associated with this ring */
u32 prod;
u32 cons;
u32 buf_size;
u32 doorbell_qpn;
void *buf;
u16 poll_cnt;
int blocked;
struct mlx4_en_tx_info *tx_info;
u8 *bounce_buf;
u8 queue_index;
cpuset_t affinity_mask;
struct buf_ring *br;
u32 last_nr_txbb;
struct mlx4_qp qp;
struct mlx4_qp_context context;
int qpn;
enum mlx4_qp_state qp_state;
struct mlx4_srq dummy;
unsigned long bytes;
unsigned long packets;
unsigned long tx_csum;
unsigned long queue_stopped;
unsigned long wake_queue;
struct mlx4_bf bf;
bool bf_enabled;
struct netdev_queue *tx_queue;
int hwtstamp_tx_type;
spinlock_t comp_lock;
int full_size;
int inline_thold;
u64 watchdog_time;
};
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_buf {
dma_addr_t dma;
struct page *page;
unsigned int page_offset;
};
struct mlx4_en_rx_ring {
struct mlx4_hwq_resources wqres;
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;
u16 rx_alloc_order;
u32 rx_alloc_size;
u32 rx_buf_size;
u32 rx_mb_size;
int qpn;
void *buf;
void *rx_info;
unsigned long errors;
unsigned long bytes;
unsigned long packets;
#ifdef LL_EXTENDED_STATS
unsigned long yields;
unsigned long misses;
unsigned long cleaned;
#endif
unsigned long csum_ok;
unsigned long csum_none;
int hwtstamp_rx_filter;
int numa_node;
struct lro_ctrl lro;
};
static inline int mlx4_en_can_lro(__be16 status)
{
const __be16 status_all = cpu_to_be16(
MLX4_CQE_STATUS_IPV4 |
MLX4_CQE_STATUS_IPV4F |
MLX4_CQE_STATUS_IPV6 |
MLX4_CQE_STATUS_IPV4OPT |
MLX4_CQE_STATUS_TCP |
MLX4_CQE_STATUS_UDP |
MLX4_CQE_STATUS_IPOK);
const __be16 status_ipv4_ipok_tcp = cpu_to_be16(
MLX4_CQE_STATUS_IPV4 |
MLX4_CQE_STATUS_IPOK |
MLX4_CQE_STATUS_TCP);
const __be16 status_ipv6_ipok_tcp = cpu_to_be16(
MLX4_CQE_STATUS_IPV6 |
MLX4_CQE_STATUS_IPOK |
MLX4_CQE_STATUS_TCP);
status &= status_all;
return (status == status_ipv4_ipok_tcp ||
status == status_ipv6_ipok_tcp);
}
struct mlx4_en_cq {
struct mlx4_cq mcq;
struct mlx4_hwq_resources wqres;
int ring;
spinlock_t lock;
struct net_device *dev;
/* Per-core Tx cq processing support */
struct timer_list timer;
int size;
int buf_size;
unsigned vector;
enum cq_type is_tx;
u16 moder_time;
u16 moder_cnt;
struct mlx4_cqe *buf;
struct task cq_task;
struct taskqueue *tq;
#define MLX4_EN_OPCODE_ERROR 0x1e
u32 tot_rx;
u32 tot_tx;
#ifdef CONFIG_NET_RX_BUSY_POLL
unsigned int state;
#define MLX4_EN_CQ_STATEIDLE 0
#define MLX4_EN_CQ_STATENAPI 1 /* NAPI owns this CQ */
#define MLX4_EN_CQ_STATEPOLL 2 /* poll owns this CQ */
#define MLX4_CQ_LOCKED (MLX4_EN_CQ_STATENAPI | MLX4_EN_CQ_STATEPOLL)
#define MLX4_EN_CQ_STATENAPI_YIELD 4 /* NAPI yielded this CQ */
#define MLX4_EN_CQ_STATEPOLL_YIELD 8 /* poll yielded this CQ */
#define CQ_YIELD (MLX4_EN_CQ_STATENAPI_YIELD | MLX4_EN_CQ_STATEPOLL_YIELD)
#define CQ_USER_PEND (MLX4_EN_CQ_STATEPOLL | MLX4_EN_CQ_STATEPOLL_YIELD)
spinlock_t poll_lock; /* protects from LLS/napi conflicts */
#endif /* CONFIG_NET_RX_BUSY_POLL */
};
struct mlx4_en_port_profile {
u32 flags;
u32 tx_ring_num;
u32 rx_ring_num;
u32 tx_ring_size;
u32 rx_ring_size;
u8 rx_pause;
u8 rx_ppp;
u8 tx_pause;
u8 tx_ppp;
int rss_rings;
};
struct mlx4_en_profile {
int rss_xor;
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];
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];
unsigned long last_overflow_check;
unsigned long overflow_period;
};
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;
};
struct mlx4_en_port_state {
int link_state;
int link_speed;
int transciver;
int autoneg;
};
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;
};
#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
#endif
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),
#ifdef CONFIG_MLX4_EN_DCB
MLX4_EN_FLAG_DCB_ENABLED = (1 << 5)
#endif
};
#define MLX4_EN_MAC_HASH_SIZE (1 << BITS_PER_BYTE)
#define MLX4_EN_MAC_HASH_IDX 5
struct en_port {
struct kobject kobj;
struct mlx4_dev *dev;
u8 port_num;
u8 vport_num;
};
struct mlx4_en_frag_info {
u16 frag_size;
u16 frag_prefix_size;
};
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;
/* 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;
u32 rx_usecs_low;
u32 pkt_rate_high;
u32 rx_usecs_high;
u32 sample_interval;
u32 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];
u64 mac;
int mac_index;
unsigned max_mtu;
int base_qpn;
int cqe_factor;
struct mlx4_en_rss_map rss_map;
__be32 ctrl_flags;
u32 flags;
u8 num_tx_rings_p_up;
u32 tx_ring_num;
u32 rx_ring_num;
u32 rx_mb_size;
struct mlx4_en_frag_info frag_info[MLX4_EN_MAX_RX_FRAGS];
u16 rx_alloc_order;
u32 rx_alloc_size;
u32 rx_buf_size;
u16 num_frags;
u16 log_rx_info;
struct mlx4_en_tx_ring **tx_ring;
struct mlx4_en_rx_ring *rx_ring[MAX_RX_RINGS];
struct mlx4_en_cq **tx_cq;
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 mlx4_en_perf_stats pstats;
struct mlx4_en_pkt_stats pkstats;
struct mlx4_en_pkt_stats pkstats_last;
struct mlx4_en_flow_stats flowstats[MLX4_NUM_PRIORITIES];
struct mlx4_en_port_stats port_stats;
struct mlx4_en_vport_stats vport_stats;
struct mlx4_en_vf_stats vf_stats;
DECLARE_BITMAP(stats_bitmap, NUM_ALL_STATS);
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 dentry *dev_root;
u32 counter_index;
eventhandler_tag vlan_attach;
eventhandler_tag vlan_detach;
struct callout watchdog_timer;
struct ifmedia media;
volatile int blocked;
struct sysctl_oid *sysctl;
struct sysctl_ctx_list conf_ctx;
struct sysctl_ctx_list stat_ctx;
#define MLX4_EN_MAC_HASH_IDX 5
struct hlist_head mac_hash[MLX4_EN_MAC_HASH_SIZE];
#ifdef CONFIG_MLX4_EN_DCB
struct ieee_ets ets;
u16 maxrate[IEEE_8021QAZ_MAX_TCS];
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
struct en_port *vf_ports[MLX4_MAX_NUM_VF];
unsigned long last_ifq_jiffies;
u64 if_counters_rx_errors;
u64 if_counters_rx_no_buffer;
};
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;
};
#ifdef CONFIG_NET_RX_BUSY_POLL
static inline void mlx4_en_cq_init_lock(struct mlx4_en_cq *cq)
{
spin_lock_init(&cq->poll_lock);
cq->state = MLX4_EN_CQ_STATEIDLE;
}
/* called from the device poll rutine to get ownership of a cq */
static inline bool mlx4_en_cq_lock_napi(struct mlx4_en_cq *cq)
{
int rc = true;
spin_lock(&cq->poll_lock);
if (cq->state & MLX4_CQ_LOCKED) {
WARN_ON(cq->state & MLX4_EN_CQ_STATENAPI);
cq->state |= MLX4_EN_CQ_STATENAPI_YIELD;
rc = false;
} else
/* we don't care if someone yielded */
cq->state = MLX4_EN_CQ_STATENAPI;
spin_unlock(&cq->poll_lock);
return rc;
}
/* returns true is someone tried to get the cq while napi had it */
static inline bool mlx4_en_cq_unlock_napi(struct mlx4_en_cq *cq)
{
int rc = false;
spin_lock(&cq->poll_lock);
WARN_ON(cq->state & (MLX4_EN_CQ_STATEPOLL |
MLX4_EN_CQ_STATENAPI_YIELD));
if (cq->state & MLX4_EN_CQ_STATEPOLL_YIELD)
rc = true;
cq->state = MLX4_EN_CQ_STATEIDLE;
spin_unlock(&cq->poll_lock);
return rc;
}
/* called from mlx4_en_low_latency_poll() */
static inline bool mlx4_en_cq_lock_poll(struct mlx4_en_cq *cq)
{
int rc = true;
spin_lock_bh(&cq->poll_lock);
if ((cq->state & MLX4_CQ_LOCKED)) {
struct net_device *dev = cq->dev;
struct mlx4_en_priv *priv = netdev_priv(dev);
struct mlx4_en_rx_ring *rx_ring = priv->rx_ring[cq->ring];
cq->state |= MLX4_EN_CQ_STATEPOLL_YIELD;
rc = false;
#ifdef LL_EXTENDED_STATS
rx_ring->yields++;
#endif
} else
/* preserve yield marks */
cq->state |= MLX4_EN_CQ_STATEPOLL;
spin_unlock_bh(&cq->poll_lock);
return rc;
}
/* returns true if someone tried to get the cq while it was locked */
static inline bool mlx4_en_cq_unlock_poll(struct mlx4_en_cq *cq)
{
int rc = false;
spin_lock_bh(&cq->poll_lock);
WARN_ON(cq->state & (MLX4_EN_CQ_STATENAPI));
if (cq->state & MLX4_EN_CQ_STATEPOLL_YIELD)
rc = true;
cq->state = MLX4_EN_CQ_STATEIDLE;
spin_unlock_bh(&cq->poll_lock);
return rc;
}
/* true if a socket is polling, even if it did not get the lock */
static inline bool mlx4_en_cq_ll_polling(struct mlx4_en_cq *cq)
{
WARN_ON(!(cq->state & MLX4_CQ_LOCKED));
return cq->state & CQ_USER_PEND;
}
#else
static inline void mlx4_en_cq_init_lock(struct mlx4_en_cq *cq)
{
}
static inline bool mlx4_en_cq_lock_napi(struct mlx4_en_cq *cq)
{
return true;
}
static inline bool mlx4_en_cq_unlock_napi(struct mlx4_en_cq *cq)
{
return false;
}
static inline bool mlx4_en_cq_lock_poll(struct mlx4_en_cq *cq)
{
return false;
}
static inline bool mlx4_en_cq_unlock_poll(struct mlx4_en_cq *cq)
{
return false;
}
static inline bool mlx4_en_cq_ll_polling(struct mlx4_en_cq *cq)
{
return false;
}
#endif /* CONFIG_NET_RX_BUSY_POLL */
#define MLX4_EN_WOL_DO_MODIFY (1ULL << 63)
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);
void mlx4_en_free_resources(struct mlx4_en_priv *priv);
int mlx4_en_alloc_resources(struct mlx4_en_priv *priv);
int mlx4_en_pre_config(struct mlx4_en_priv *priv);
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 mbuf *mb);
int mlx4_en_transmit(struct ifnet *dev, struct mbuf *m);
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_idx);
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_qflush(struct ifnet *dev);
int mlx4_en_create_rx_ring(struct mlx4_en_priv *priv,
struct mlx4_en_rx_ring **pring,
u32 size, int node);
void mlx4_en_destroy_rx_ring(struct mlx4_en_priv *priv,
struct mlx4_en_rx_ring **pring,
u32 size, u16 stride);
void mlx4_en_tx_que(void *context, int pending);
void mlx4_en_rx_que(void *context, int pending);
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);
void mlx4_en_poll_tx_cq(unsigned long data);
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_map_buffer(struct mlx4_buf *buf);
void mlx4_en_unmap_buffer(struct mlx4_buf *buf);
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);
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);
int mlx4_en_get_vport_stats(struct mlx4_en_dev *mdev, u8 port);
void mlx4_en_create_debug_files(struct mlx4_en_priv *priv);
void mlx4_en_delete_debug_files(struct mlx4_en_priv *priv);
int mlx4_en_register_debugfs(void);
void mlx4_en_unregister_debugfs(void);
#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,
struct mlx4_en_rx_ring *rx_ring);
#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);
/*
* Functions for time stamping
*/
#define SKBTX_HW_TSTAMP (1 << 0)
#define SKBTX_IN_PROGRESS (1 << 2)
u64 mlx4_en_get_cqe_ts(struct mlx4_cqe *cqe);
/* Functions for caching and restoring statistics */
int mlx4_en_get_sset_count(struct net_device *dev, int sset);
void mlx4_en_restore_ethtool_stats(struct mlx4_en_priv *priv,
u64 *data);
/*
* Globals
*/
extern const struct ethtool_ops mlx4_en_ethtool_ops;
/*
* Defines for link speed - needed by selftest
*/
#define MLX4_EN_LINK_SPEED_1G 1000
#define MLX4_EN_LINK_SPEED_10G 10000
#define MLX4_EN_LINK_SPEED_40G 40000
enum {
NETIF_MSG_DRV = 0x0001,
NETIF_MSG_PROBE = 0x0002,
NETIF_MSG_LINK = 0x0004,
NETIF_MSG_TIMER = 0x0008,
NETIF_MSG_IFDOWN = 0x0010,
NETIF_MSG_IFUP = 0x0020,
NETIF_MSG_RX_ERR = 0x0040,
NETIF_MSG_TX_ERR = 0x0080,
NETIF_MSG_TX_QUEUED = 0x0100,
NETIF_MSG_INTR = 0x0200,
NETIF_MSG_TX_DONE = 0x0400,
NETIF_MSG_RX_STATUS = 0x0800,
NETIF_MSG_PKTDATA = 0x1000,
NETIF_MSG_HW = 0x2000,
NETIF_MSG_WOL = 0x4000,
};
/*
* printk / logging functions
*/
#define en_print(level, priv, format, arg...) \
{ \
if ((priv)->registered) \
printk(level "%s: %s: " format, DRV_NAME, \
(priv->dev)->if_xname, ## arg); \
else \
printk(level "%s: %s: Port %d: " format, \
DRV_NAME, dev_name(&priv->mdev->pdev->dev), \
(priv)->port, ## arg); \
}
#define en_dbg(mlevel, priv, format, arg...) \
do { \
if (NETIF_MSG_##mlevel & priv->msg_enable) \
en_print(KERN_DEBUG, priv, format, ##arg); \
} while (0)
#define en_warn(priv, format, arg...) \
en_print(KERN_WARNING, priv, format, ##arg)
#define en_err(priv, format, arg...) \
en_print(KERN_ERR, priv, format, ##arg)
#define en_info(priv, format, arg...) \
en_print(KERN_INFO, priv, format, ## arg)
#define mlx4_err(mdev, format, arg...) \
pr_err("%s %s: " format, DRV_NAME, \
dev_name(&mdev->pdev->dev), ##arg)
#define mlx4_info(mdev, format, arg...) \
pr_info("%s %s: " format, DRV_NAME, \
dev_name(&mdev->pdev->dev), ##arg)
#define mlx4_warn(mdev, format, arg...) \
pr_warning("%s %s: " format, DRV_NAME, \
dev_name(&mdev->pdev->dev), ##arg)
#endif
Reference in New Issue View Git Blame Copy Permalink