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Commit 511d2224 authored by Eric Dumazet's avatar Eric Dumazet Committed by David S. Miller
Browse files

tg3: 64 bit stats on all arches 



Now core network is able to handle 64 bit netdevice stats on 32 bit
arches, we can provide them for tg3, since hardware maintains 64 bit
counters.

Signed-off-by: default avatarEric Dumazet <eric.dumazet@gmail.com>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent 5d07bf26

drivers/net/tg3.c

+12 −23
Original line number Diff line number Diff line
@@ -9021,7 +9021,8 @@ static int tg3_open(struct net_device *dev) 
	return err;

}



static struct net_device_stats *tg3_get_stats(struct net_device *);

static struct rtnl_link_stats64 *tg3_get_stats64(struct net_device *,

						 struct rtnl_link_stats64 *);

static struct tg3_ethtool_stats *tg3_get_estats(struct tg3 *);



static int tg3_close(struct net_device *dev)
@@ -9055,8 +9056,8 @@ static int tg3_close(struct net_device *dev) 


	tg3_ints_fini(tp);



	memcpy(&tp->net_stats_prev, tg3_get_stats(tp->dev),

	       sizeof(tp->net_stats_prev));

	tg3_get_stats64(tp->dev, &tp->net_stats_prev);



	memcpy(&tp->estats_prev, tg3_get_estats(tp),

	       sizeof(tp->estats_prev));
@@ -9069,24 +9070,12 @@ static int tg3_close(struct net_device *dev) 
	return 0;

}



static inline unsigned long get_stat64(tg3_stat64_t *val)

{

	unsigned long ret;



#if (BITS_PER_LONG == 32)

	ret = val->low;

#else

	ret = ((u64)val->high << 32) | ((u64)val->low);

#endif

	return ret;

}



static inline u64 get_estat64(tg3_stat64_t *val)

static inline u64 get_stat64(tg3_stat64_t *val)

{

       return ((u64)val->high << 32) | ((u64)val->low);

}



static unsigned long calc_crc_errors(struct tg3 *tp)

static u64 calc_crc_errors(struct tg3 *tp)

{

	struct tg3_hw_stats *hw_stats = tp->hw_stats;
@@ -9114,7 +9103,7 @@ static unsigned long calc_crc_errors(struct tg3 *tp) 


#define ESTAT_ADD(member) \

	estats->member =	old_estats->member + \

				get_estat64(&hw_stats->member)

				get_stat64(&hw_stats->member)



static struct tg3_ethtool_stats *tg3_get_estats(struct tg3 *tp)

{
@@ -9204,11 +9193,11 @@ static struct tg3_ethtool_stats *tg3_get_estats(struct tg3 *tp) 
	return estats;

}



static struct net_device_stats *tg3_get_stats(struct net_device *dev)

static struct rtnl_link_stats64 *tg3_get_stats64(struct net_device *dev,

						 struct rtnl_link_stats64 *stats)

{

	struct tg3 *tp = netdev_priv(dev);

	struct net_device_stats *stats = &tp->net_stats;

	struct net_device_stats *old_stats = &tp->net_stats_prev;

	struct rtnl_link_stats64 *old_stats = &tp->net_stats_prev;

	struct tg3_hw_stats *hw_stats = tp->hw_stats;



	if (!hw_stats)
@@ -14317,7 +14306,7 @@ static const struct net_device_ops tg3_netdev_ops = { 
	.ndo_open		= tg3_open,

	.ndo_stop		= tg3_close,

	.ndo_start_xmit		= tg3_start_xmit,

	.ndo_get_stats		= tg3_get_stats,

	.ndo_get_stats64	= tg3_get_stats64,

	.ndo_validate_addr	= eth_validate_addr,

	.ndo_set_multicast_list	= tg3_set_rx_mode,

	.ndo_set_mac_address	= tg3_set_mac_addr,
@@ -14336,7 +14325,7 @@ static const struct net_device_ops tg3_netdev_ops_dma_bug = { 
	.ndo_open		= tg3_open,

	.ndo_stop		= tg3_close,

	.ndo_start_xmit		= tg3_start_xmit_dma_bug,

	.ndo_get_stats		= tg3_get_stats,

	.ndo_get_stats64	= tg3_get_stats64,

	.ndo_validate_addr	= eth_validate_addr,

	.ndo_set_multicast_list	= tg3_set_rx_mode,

	.ndo_set_mac_address	= tg3_set_mac_addr,

drivers/net/tg3.h

+2 −2
Original line number Diff line number Diff line
@@ -2772,8 +2772,8 @@ struct tg3 { 




	/* begin "everything else" cacheline(s) section */

	struct net_device_stats		net_stats;

	struct net_device_stats		net_stats_prev;

	struct rtnl_link_stats64	net_stats;

	struct rtnl_link_stats64	net_stats_prev;

	struct tg3_ethtool_stats	estats;

	struct tg3_ethtool_stats	estats_prev;