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path: root/drivers/net/chelsio/sge.c
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Diffstat (limited to 'drivers/net/chelsio/sge.c')
-rw-r--r--drivers/net/chelsio/sge.c65
1 files changed, 50 insertions, 15 deletions
diff --git a/drivers/net/chelsio/sge.c b/drivers/net/chelsio/sge.c
index 26df2049d849..9911048d8213 100644
--- a/drivers/net/chelsio/sge.c
+++ b/drivers/net/chelsio/sge.c
@@ -274,7 +274,7 @@ struct sge {
struct sk_buff *espibug_skb[MAX_NPORTS];
u32 sge_control; /* shadow value of sge control reg */
struct sge_intr_counts stats;
- struct sge_port_stats port_stats[MAX_NPORTS];
+ struct sge_port_stats *port_stats[MAX_NPORTS];
struct sched *tx_sched;
struct cmdQ cmdQ[SGE_CMDQ_N] ____cacheline_aligned_in_smp;
};
@@ -820,6 +820,11 @@ static inline unsigned int jumbo_payload_capacity(const struct sge *sge)
*/
void t1_sge_destroy(struct sge *sge)
{
+ int i;
+
+ for_each_port(sge->adapter, i)
+ free_percpu(sge->port_stats[i]);
+
kfree(sge->tx_sched);
free_tx_resources(sge);
free_rx_resources(sge);
@@ -985,14 +990,28 @@ int t1_sge_intr_error_handler(struct sge *sge)
return 0;
}
-const struct sge_intr_counts *t1_sge_get_intr_counts(struct sge *sge)
+const struct sge_intr_counts *t1_sge_get_intr_counts(const struct sge *sge)
{
return &sge->stats;
}
-const struct sge_port_stats *t1_sge_get_port_stats(struct sge *sge, int port)
+void t1_sge_get_port_stats(const struct sge *sge, int port,
+ struct sge_port_stats *ss)
{
- return &sge->port_stats[port];
+ int cpu;
+
+ memset(ss, 0, sizeof(*ss));
+ for_each_possible_cpu(cpu) {
+ struct sge_port_stats *st = per_cpu_ptr(sge->port_stats[port], cpu);
+
+ ss->rx_packets += st->rx_packets;
+ ss->rx_cso_good += st->rx_cso_good;
+ ss->tx_packets += st->tx_packets;
+ ss->tx_cso += st->tx_cso;
+ ss->tx_tso += st->tx_tso;
+ ss->vlan_xtract += st->vlan_xtract;
+ ss->vlan_insert += st->vlan_insert;
+ }
}
/**
@@ -1361,36 +1380,39 @@ static int sge_rx(struct sge *sge, struct freelQ *fl, unsigned int len)
struct sk_buff *skb;
struct cpl_rx_pkt *p;
struct adapter *adapter = sge->adapter;
+ struct sge_port_stats *st;
- sge->stats.ethernet_pkts++;
skb = get_packet(adapter->pdev, fl, len - sge->rx_pkt_pad,
sge->rx_pkt_pad, 2, SGE_RX_COPY_THRES,
SGE_RX_DROP_THRES);
- if (!skb) {
- sge->port_stats[0].rx_drops++; /* charge only port 0 for now */
+ if (unlikely(!skb)) {
+ sge->stats.rx_drops++;
return 0;
}
p = (struct cpl_rx_pkt *)skb->data;
skb_pull(skb, sizeof(*p));
- skb->dev = adapter->port[p->iff].dev;
if (p->iff >= adapter->params.nports) {
kfree_skb(skb);
return 0;
}
+ skb->dev = adapter->port[p->iff].dev;
skb->dev->last_rx = jiffies;
+ st = per_cpu_ptr(sge->port_stats[p->iff], smp_processor_id());
+ st->rx_packets++;
+
skb->protocol = eth_type_trans(skb, skb->dev);
if ((adapter->flags & RX_CSUM_ENABLED) && p->csum == 0xffff &&
skb->protocol == htons(ETH_P_IP) &&
(skb->data[9] == IPPROTO_TCP || skb->data[9] == IPPROTO_UDP)) {
- sge->port_stats[p->iff].rx_cso_good++;
+ ++st->rx_cso_good;
skb->ip_summed = CHECKSUM_UNNECESSARY;
} else
skb->ip_summed = CHECKSUM_NONE;
if (unlikely(adapter->vlan_grp && p->vlan_valid)) {
- sge->port_stats[p->iff].vlan_xtract++;
+ st->vlan_xtract++;
if (adapter->params.sge.polling)
vlan_hwaccel_receive_skb(skb, adapter->vlan_grp,
ntohs(p->vlan));
@@ -1862,8 +1884,8 @@ static inline int eth_hdr_len(const void *data)
int t1_start_xmit(struct sk_buff *skb, struct net_device *dev)
{
struct adapter *adapter = dev->priv;
- struct sge_port_stats *st = &adapter->sge->port_stats[dev->if_port];
struct sge *sge = adapter->sge;
+ struct sge_port_stats *st = per_cpu_ptr(sge->port_stats[dev->if_port], smp_processor_id());
struct cpl_tx_pkt *cpl;
if (skb->protocol == htons(ETH_P_CPL5))
@@ -1873,7 +1895,7 @@ int t1_start_xmit(struct sk_buff *skb, struct net_device *dev)
int eth_type;
struct cpl_tx_pkt_lso *hdr;
- st->tso++;
+ ++st->tx_tso;
eth_type = skb->nh.raw - skb->data == ETH_HLEN ?
CPL_ETH_II : CPL_ETH_II_VLAN;
@@ -1887,7 +1909,6 @@ int t1_start_xmit(struct sk_buff *skb, struct net_device *dev)
skb_shinfo(skb)->gso_size));
hdr->len = htonl(skb->len - sizeof(*hdr));
cpl = (struct cpl_tx_pkt *)hdr;
- sge->stats.tx_lso_pkts++;
} else {
/*
* Packets shorter than ETH_HLEN can break the MAC, drop them
@@ -1955,8 +1976,6 @@ int t1_start_xmit(struct sk_buff *skb, struct net_device *dev)
/* the length field isn't used so don't bother setting it */
st->tx_cso += (skb->ip_summed == CHECKSUM_PARTIAL);
- sge->stats.tx_do_cksum += (skb->ip_summed == CHECKSUM_PARTIAL);
- sge->stats.tx_reg_pkts++;
}
cpl->iff = dev->if_port;
@@ -1970,6 +1989,7 @@ int t1_start_xmit(struct sk_buff *skb, struct net_device *dev)
cpl->vlan_valid = 0;
send:
+ st->tx_packets++;
dev->trans_start = jiffies;
return t1_sge_tx(skb, adapter, 0, dev);
}
@@ -2151,6 +2171,7 @@ struct sge * __devinit t1_sge_create(struct adapter *adapter,
struct sge_params *p)
{
struct sge *sge = kzalloc(sizeof(*sge), GFP_KERNEL);
+ int i;
if (!sge)
return NULL;
@@ -2160,6 +2181,12 @@ struct sge * __devinit t1_sge_create(struct adapter *adapter,
sge->rx_pkt_pad = t1_is_T1B(adapter) ? 0 : 2;
sge->jumbo_fl = t1_is_T1B(adapter) ? 1 : 0;
+ for_each_port(adapter, i) {
+ sge->port_stats[i] = alloc_percpu(struct sge_port_stats);
+ if (!sge->port_stats[i])
+ goto nomem_port;
+ }
+
init_timer(&sge->tx_reclaim_timer);
sge->tx_reclaim_timer.data = (unsigned long)sge;
sge->tx_reclaim_timer.function = sge_tx_reclaim_cb;
@@ -2199,4 +2226,12 @@ struct sge * __devinit t1_sge_create(struct adapter *adapter,
p->polling = 0;
return sge;
+nomem_port:
+ while (i >= 0) {
+ free_percpu(sge->port_stats[i]);
+ --i;
+ }
+ kfree(sge);
+ return NULL;
+
}
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