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net: rename CONFIG_NET_LL_RX_POLL to CONFIG_NET_RX_BUSY_POLL

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Eliezer renames several *ll_poll to *busy_poll, but forgets
CONFIG_NET_LL_RX_POLL, so in case of confusion, rename it too.

Cc: Eliezer Tamir <eliezer.tamir@linux.intel.com>
Cc: David S. Miller <davem@davemloft.net>
Signed-off-by: Cong Wang <amwang@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Cong Wang 2013-08-01 11:10:25 +08:00 committed by David S. Miller
parent dfcefb0be1
commit e0d1095ae3
18 changed files with 41 additions and 41 deletions
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4
Documentation/sysctl/net.txt
View File

@ -52,7 +52,7 @@ Default: 64
busy_read
----------------
Low latency busy poll timeout for socket reads. (needs CONFIG_NET_LL_RX_POLL)
Low latency busy poll timeout for socket reads. (needs CONFIG_NET_RX_BUSY_POLL)
Approximate time in us to busy loop waiting for packets on the device queue.
This sets the default value of the SO_BUSY_POLL socket option.
Can be set or overridden per socket by setting socket option SO_BUSY_POLL,
@ -63,7 +63,7 @@ Default: 0 (off)
busy_poll
----------------
Low latency busy poll timeout for poll and select. (needs CONFIG_NET_LL_RX_POLL)
Low latency busy poll timeout for poll and select. (needs CONFIG_NET_RX_BUSY_POLL)
Approximate time in us to busy loop waiting for events.
Recommended value depends on the number of sockets you poll on.
For several sockets 50, for several hundreds 100.

8
drivers/net/ethernet/broadcom/bnx2x/bnx2x.h
View File

@ -486,7 +486,7 @@ struct bnx2x_fastpath {
struct napi_struct napi;
#ifdef CONFIG_NET_LL_RX_POLL
#ifdef CONFIG_NET_RX_BUSY_POLL
unsigned int state;
#define BNX2X_FP_STATE_IDLE 0
#define BNX2X_FP_STATE_NAPI (1 << 0) /* NAPI owns this FP */
@ -498,7 +498,7 @@ struct bnx2x_fastpath {
#define BNX2X_FP_USER_PEND (BNX2X_FP_STATE_POLL | BNX2X_FP_STATE_POLL_YIELD)
/* protect state */
spinlock_t lock;
#endif /* CONFIG_NET_LL_RX_POLL */
#endif /* CONFIG_NET_RX_BUSY_POLL */
union host_hc_status_block status_blk;
/* chip independent shortcuts into sb structure */
@ -572,7 +572,7 @@ struct bnx2x_fastpath {
#define bnx2x_fp_stats(bp, fp) (&((bp)->fp_stats[(fp)->index]))
#define bnx2x_fp_qstats(bp, fp) (&((bp)->fp_stats[(fp)->index].eth_q_stats))
#ifdef CONFIG_NET_LL_RX_POLL
#ifdef CONFIG_NET_RX_BUSY_POLL
static inline void bnx2x_fp_init_lock(struct bnx2x_fastpath *fp)
{
spin_lock_init(&fp->lock);
@ -680,7 +680,7 @@ static inline bool bnx2x_fp_ll_polling(struct bnx2x_fastpath *fp)
{
return false;
}
#endif /* CONFIG_NET_LL_RX_POLL */
#endif /* CONFIG_NET_RX_BUSY_POLL */
/* Use 2500 as a mini-jumbo MTU for FCoE */
#define BNX2X_FCOE_MINI_JUMBO_MTU 2500

2
drivers/net/ethernet/broadcom/bnx2x/bnx2x_cmn.c
View File

@ -3117,7 +3117,7 @@ int bnx2x_poll(struct napi_struct *napi, int budget)
return work_done;
}
#ifdef CONFIG_NET_LL_RX_POLL
#ifdef CONFIG_NET_RX_BUSY_POLL
/* must be called with local_bh_disable()d */
int bnx2x_low_latency_recv(struct napi_struct *napi)
{

2
drivers/net/ethernet/broadcom/bnx2x/bnx2x_main.c
View File

@ -12026,7 +12026,7 @@ static const struct net_device_ops bnx2x_netdev_ops = {
.ndo_fcoe_get_wwn = bnx2x_fcoe_get_wwn,
#endif
#ifdef CONFIG_NET_LL_RX_POLL
#ifdef CONFIG_NET_RX_BUSY_POLL
.ndo_busy_poll = bnx2x_low_latency_recv,
#endif
};

12
drivers/net/ethernet/intel/ixgbe/ixgbe.h
View File

@ -54,7 +54,7 @@
#include <net/busy_poll.h>
#ifdef CONFIG_NET_LL_RX_POLL
#ifdef CONFIG_NET_RX_BUSY_POLL
#define LL_EXTENDED_STATS
#endif
/* common prefix used by pr_<> macros */
@ -366,7 +366,7 @@ struct ixgbe_q_vector {
struct rcu_head rcu; /* to avoid race with update stats on free */
char name[IFNAMSIZ + 9];
#ifdef CONFIG_NET_LL_RX_POLL
#ifdef CONFIG_NET_RX_BUSY_POLL
unsigned int state;
#define IXGBE_QV_STATE_IDLE 0
#define IXGBE_QV_STATE_NAPI 1 /* NAPI owns this QV */
@ -377,12 +377,12 @@ struct ixgbe_q_vector {
#define IXGBE_QV_YIELD (IXGBE_QV_STATE_NAPI_YIELD | IXGBE_QV_STATE_POLL_YIELD)
#define IXGBE_QV_USER_PEND (IXGBE_QV_STATE_POLL | IXGBE_QV_STATE_POLL_YIELD)
spinlock_t lock;
#endif /* CONFIG_NET_LL_RX_POLL */
#endif /* CONFIG_NET_RX_BUSY_POLL */
/* for dynamic allocation of rings associated with this q_vector */
struct ixgbe_ring ring[0] ____cacheline_internodealigned_in_smp;
};
#ifdef CONFIG_NET_LL_RX_POLL
#ifdef CONFIG_NET_RX_BUSY_POLL
static inline void ixgbe_qv_init_lock(struct ixgbe_q_vector *q_vector)
{
@ -462,7 +462,7 @@ static inline bool ixgbe_qv_ll_polling(struct ixgbe_q_vector *q_vector)
WARN_ON(!(q_vector->state & IXGBE_QV_LOCKED));
return q_vector->state & IXGBE_QV_USER_PEND;
}
#else /* CONFIG_NET_LL_RX_POLL */
#else /* CONFIG_NET_RX_BUSY_POLL */
static inline void ixgbe_qv_init_lock(struct ixgbe_q_vector *q_vector)
{
}
@ -491,7 +491,7 @@ static inline bool ixgbe_qv_ll_polling(struct ixgbe_q_vector *q_vector)
{
return false;
}
#endif /* CONFIG_NET_LL_RX_POLL */
#endif /* CONFIG_NET_RX_BUSY_POLL */
#ifdef CONFIG_IXGBE_HWMON

6
drivers/net/ethernet/intel/ixgbe/ixgbe_main.c
View File

@ -1998,7 +1998,7 @@ static int ixgbe_clean_rx_irq(struct ixgbe_q_vector *q_vector,
return total_rx_packets;
}
#ifdef CONFIG_NET_LL_RX_POLL
#ifdef CONFIG_NET_RX_BUSY_POLL
/* must be called with local_bh_disable()d */
static int ixgbe_low_latency_recv(struct napi_struct *napi)
{
@ -2030,7 +2030,7 @@ static int ixgbe_low_latency_recv(struct napi_struct *napi)
return found;
}
#endif /* CONFIG_NET_LL_RX_POLL */
#endif /* CONFIG_NET_RX_BUSY_POLL */
/**
* ixgbe_configure_msix - Configure MSI-X hardware
@ -7227,7 +7227,7 @@ static const struct net_device_ops ixgbe_netdev_ops = {
#ifdef CONFIG_NET_POLL_CONTROLLER
.ndo_poll_controller = ixgbe_netpoll,
#endif
#ifdef CONFIG_NET_LL_RX_POLL
#ifdef CONFIG_NET_RX_BUSY_POLL
.ndo_busy_poll = ixgbe_low_latency_recv,
#endif
#ifdef IXGBE_FCOE

6
drivers/net/ethernet/mellanox/mlx4/en_ethtool.c
View File

@ -223,7 +223,7 @@ static int mlx4_en_get_sset_count(struct net_device *dev, int sset)
case ETH_SS_STATS:
return (priv->stats_bitmap ? bit_count : NUM_ALL_STATS) +
(priv->tx_ring_num * 2) +
#ifdef CONFIG_NET_LL_RX_POLL
#ifdef CONFIG_NET_RX_BUSY_POLL
(priv->rx_ring_num * 5);
#else
(priv->rx_ring_num * 2);
@ -276,7 +276,7 @@ static void mlx4_en_get_ethtool_stats(struct net_device *dev,
for (i = 0; i < priv->rx_ring_num; i++) {
data[index++] = priv->rx_ring[i].packets;
data[index++] = priv->rx_ring[i].bytes;
#ifdef CONFIG_NET_LL_RX_POLL
#ifdef CONFIG_NET_RX_BUSY_POLL
data[index++] = priv->rx_ring[i].yields;
data[index++] = priv->rx_ring[i].misses;
data[index++] = priv->rx_ring[i].cleaned;
@ -344,7 +344,7 @@ static void mlx4_en_get_strings(struct net_device *dev,
"rx%d_packets", i);
sprintf(data + (index++) * ETH_GSTRING_LEN,
"rx%d_bytes", i);
#ifdef CONFIG_NET_LL_RX_POLL
#ifdef CONFIG_NET_RX_BUSY_POLL
sprintf(data + (index++) * ETH_GSTRING_LEN,
"rx%d_napi_yield", i);
sprintf(data + (index++) * ETH_GSTRING_LEN,

6
drivers/net/ethernet/mellanox/mlx4/en_netdev.c
View File

@ -68,7 +68,7 @@ int mlx4_en_setup_tc(struct net_device *dev, u8 up)
return 0;
}
#ifdef CONFIG_NET_LL_RX_POLL
#ifdef CONFIG_NET_RX_BUSY_POLL
/* must be called with local_bh_disable()d */
static int mlx4_en_low_latency_recv(struct napi_struct *napi)
{
@ -94,7 +94,7 @@ static int mlx4_en_low_latency_recv(struct napi_struct *napi)
return done;
}
#endif /* CONFIG_NET_LL_RX_POLL */
#endif /* CONFIG_NET_RX_BUSY_POLL */
#ifdef CONFIG_RFS_ACCEL
@ -2140,7 +2140,7 @@ static const struct net_device_ops mlx4_netdev_ops = {
#ifdef CONFIG_RFS_ACCEL
.ndo_rx_flow_steer = mlx4_en_filter_rfs,
#endif
#ifdef CONFIG_NET_LL_RX_POLL
#ifdef CONFIG_NET_RX_BUSY_POLL
.ndo_busy_poll = mlx4_en_low_latency_recv,
#endif
};

10
drivers/net/ethernet/mellanox/mlx4/mlx4_en.h
View File

@ -292,7 +292,7 @@ struct mlx4_en_rx_ring {
void *rx_info;
unsigned long bytes;
unsigned long packets;
#ifdef CONFIG_NET_LL_RX_POLL
#ifdef CONFIG_NET_RX_BUSY_POLL
unsigned long yields;
unsigned long misses;
unsigned long cleaned;
@ -318,7 +318,7 @@ struct mlx4_en_cq {
struct mlx4_cqe *buf;
#define MLX4_EN_OPCODE_ERROR 0x1e
#ifdef CONFIG_NET_LL_RX_POLL
#ifdef CONFIG_NET_RX_BUSY_POLL
unsigned int state;
#define MLX4_EN_CQ_STATE_IDLE 0
#define MLX4_EN_CQ_STATE_NAPI 1 /* NAPI owns this CQ */
@ -329,7 +329,7 @@ struct mlx4_en_cq {
#define CQ_YIELD (MLX4_EN_CQ_STATE_NAPI_YIELD | MLX4_EN_CQ_STATE_POLL_YIELD)
#define CQ_USER_PEND (MLX4_EN_CQ_STATE_POLL | MLX4_EN_CQ_STATE_POLL_YIELD)
spinlock_t poll_lock; /* protects from LLS/napi conflicts */
#endif /* CONFIG_NET_LL_RX_POLL */
#endif /* CONFIG_NET_RX_BUSY_POLL */
};
struct mlx4_en_port_profile {
@ -580,7 +580,7 @@ struct mlx4_mac_entry {
struct rcu_head rcu;
};
#ifdef CONFIG_NET_LL_RX_POLL
#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);
@ -687,7 +687,7 @@ static inline bool mlx4_en_cq_ll_polling(struct mlx4_en_cq *cq)
{
return false;
}
#endif /* CONFIG_NET_LL_RX_POLL */
#endif /* CONFIG_NET_RX_BUSY_POLL */
#define MLX4_EN_WOL_DO_MODIFY (1ULL << 63)

2
include/linux/netdevice.h
View File

@ -973,7 +973,7 @@ struct net_device_ops {
gfp_t gfp);
void (*ndo_netpoll_cleanup)(struct net_device *dev);
#endif
#ifdef CONFIG_NET_LL_RX_POLL
#ifdef CONFIG_NET_RX_BUSY_POLL
int (*ndo_busy_poll)(struct napi_struct *dev);
#endif
int (*ndo_set_vf_mac)(struct net_device *dev,

2
include/linux/skbuff.h
View File

@ -501,7 +501,7 @@ struct sk_buff {
/* 7/9 bit hole (depending on ndisc_nodetype presence) */
kmemcheck_bitfield_end(flags2);
#if defined CONFIG_NET_DMA || defined CONFIG_NET_LL_RX_POLL
#if defined CONFIG_NET_DMA || defined CONFIG_NET_RX_BUSY_POLL
union {
unsigned int napi_id;
dma_cookie_t dma_cookie;

6
include/net/busy_poll.h
View File

@ -27,7 +27,7 @@
#include <linux/netdevice.h>
#include <net/ip.h>
#ifdef CONFIG_NET_LL_RX_POLL
#ifdef CONFIG_NET_RX_BUSY_POLL
struct napi_struct;
extern unsigned int sysctl_net_busy_read __read_mostly;
@ -146,7 +146,7 @@ static inline void sk_mark_napi_id(struct sock *sk, struct sk_buff *skb)
sk->sk_napi_id = skb->napi_id;
}
#else /* CONFIG_NET_LL_RX_POLL */
#else /* CONFIG_NET_RX_BUSY_POLL */
static inline unsigned long net_busy_loop_on(void)
{
return 0;
@ -186,5 +186,5 @@ static inline bool sk_busy_loop(struct sock *sk, int nonblock)
return false;
}
#endif /* CONFIG_NET_LL_RX_POLL */
#endif /* CONFIG_NET_RX_BUSY_POLL */
#endif /* _LINUX_NET_BUSY_POLL_H */

2
include/net/sock.h
View File

@ -327,7 +327,7 @@ struct sock {
#ifdef CONFIG_RPS
__u32 sk_rxhash;
#endif
#ifdef CONFIG_NET_LL_RX_POLL
#ifdef CONFIG_NET_RX_BUSY_POLL
unsigned int sk_napi_id;
unsigned int sk_ll_usec;
#endif

2
net/Kconfig
View File

@ -244,7 +244,7 @@ config NETPRIO_CGROUP
Cgroup subsystem for use in assigning processes to network priorities on
a per-interface basis
config NET_LL_RX_POLL
config NET_RX_BUSY_POLL
boolean
default y

2
net/core/skbuff.c
View File

@ -740,7 +740,7 @@ static void __copy_skb_header(struct sk_buff *new, const struct sk_buff *old)
skb_copy_secmark(new, old);
#ifdef CONFIG_NET_LL_RX_POLL
#ifdef CONFIG_NET_RX_BUSY_POLL
new->napi_id = old->napi_id;
#endif
}

6
net/core/sock.c
View File

@ -900,7 +900,7 @@ int sock_setsockopt(struct socket *sock, int level, int optname,
sock_valbool_flag(sk, SOCK_SELECT_ERR_QUEUE, valbool);
break;
#ifdef CONFIG_NET_LL_RX_POLL
#ifdef CONFIG_NET_RX_BUSY_POLL
case SO_BUSY_POLL:
/* allow unprivileged users to decrease the value */
if ((val > sk->sk_ll_usec) && !capable(CAP_NET_ADMIN))
@ -1170,7 +1170,7 @@ int sock_getsockopt(struct socket *sock, int level, int optname,
v.val = sock_flag(sk, SOCK_SELECT_ERR_QUEUE);
break;
#ifdef CONFIG_NET_LL_RX_POLL
#ifdef CONFIG_NET_RX_BUSY_POLL
case SO_BUSY_POLL:
v.val = sk->sk_ll_usec;
break;
@ -2292,7 +2292,7 @@ void sock_init_data(struct socket *sock, struct sock *sk)
sk->sk_stamp = ktime_set(-1L, 0);
#ifdef CONFIG_NET_LL_RX_POLL
#ifdef CONFIG_NET_RX_BUSY_POLL
sk->sk_napi_id = 0;
sk->sk_ll_usec = sysctl_net_busy_read;
#endif

2
net/core/sysctl_net_core.c
View File

@ -298,7 +298,7 @@ static struct ctl_table net_core_table[] = {
.proc_handler = flow_limit_table_len_sysctl
},
#endif /* CONFIG_NET_FLOW_LIMIT */
#ifdef CONFIG_NET_LL_RX_POLL
#ifdef CONFIG_NET_RX_BUSY_POLL
{
.procname = "busy_poll",
.data = &sysctl_net_busy_poll,

2
net/socket.c
View File

@ -106,7 +106,7 @@
#include <linux/atalk.h>
#include <net/busy_poll.h>
#ifdef CONFIG_NET_LL_RX_POLL
#ifdef CONFIG_NET_RX_BUSY_POLL
unsigned int sysctl_net_busy_read __read_mostly;
unsigned int sysctl_net_busy_poll __read_mostly;
#endif