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-rw-r--r--drivers/net/hyperv/hyperv_net.h11
-rw-r--r--drivers/net/hyperv/netvsc_drv.c106
2 files changed, 114 insertions, 3 deletions
diff --git a/drivers/net/hyperv/hyperv_net.h b/drivers/net/hyperv/hyperv_net.h
index 4b6e308199d2..a32ded5b4f41 100644
--- a/drivers/net/hyperv/hyperv_net.h
+++ b/drivers/net/hyperv/hyperv_net.h
@@ -873,6 +873,17 @@ struct netvsc_ethtool_stats {
unsigned long wake_queue;
};
+struct netvsc_ethtool_pcpu_stats {
+ u64 rx_packets;
+ u64 rx_bytes;
+ u64 tx_packets;
+ u64 tx_bytes;
+ u64 vf_rx_packets;
+ u64 vf_rx_bytes;
+ u64 vf_tx_packets;
+ u64 vf_tx_bytes;
+};
+
struct netvsc_vf_pcpu_stats {
u64 rx_packets;
u64 rx_bytes;
diff --git a/drivers/net/hyperv/netvsc_drv.c b/drivers/net/hyperv/netvsc_drv.c
index cf4f40a04194..20275d1e6f9a 100644
--- a/drivers/net/hyperv/netvsc_drv.c
+++ b/drivers/net/hyperv/netvsc_drv.c
@@ -1118,6 +1118,64 @@ static void netvsc_get_vf_stats(struct net_device *net,
}
}
+static void netvsc_get_pcpu_stats(struct net_device *net,
+ struct netvsc_ethtool_pcpu_stats *pcpu_tot)
+{
+ struct net_device_context *ndev_ctx = netdev_priv(net);
+ struct netvsc_device *nvdev = rcu_dereference_rtnl(ndev_ctx->nvdev);
+ int i;
+
+ /* fetch percpu stats of vf */
+ for_each_possible_cpu(i) {
+ const struct netvsc_vf_pcpu_stats *stats =
+ per_cpu_ptr(ndev_ctx->vf_stats, i);
+ struct netvsc_ethtool_pcpu_stats *this_tot = &pcpu_tot[i];
+ unsigned int start;
+
+ do {
+ start = u64_stats_fetch_begin_irq(&stats->syncp);
+ this_tot->vf_rx_packets = stats->rx_packets;
+ this_tot->vf_tx_packets = stats->tx_packets;
+ this_tot->vf_rx_bytes = stats->rx_bytes;
+ this_tot->vf_tx_bytes = stats->tx_bytes;
+ } while (u64_stats_fetch_retry_irq(&stats->syncp, start));
+ this_tot->rx_packets = this_tot->vf_rx_packets;
+ this_tot->tx_packets = this_tot->vf_tx_packets;
+ this_tot->rx_bytes = this_tot->vf_rx_bytes;
+ this_tot->tx_bytes = this_tot->vf_tx_bytes;
+ }
+
+ /* fetch percpu stats of netvsc */
+ for (i = 0; i < nvdev->num_chn; i++) {
+ const struct netvsc_channel *nvchan = &nvdev->chan_table[i];
+ const struct netvsc_stats *stats;
+ struct netvsc_ethtool_pcpu_stats *this_tot =
+ &pcpu_tot[nvchan->channel->target_cpu];
+ u64 packets, bytes;
+ unsigned int start;
+
+ stats = &nvchan->tx_stats;
+ do {
+ start = u64_stats_fetch_begin_irq(&stats->syncp);
+ packets = stats->packets;
+ bytes = stats->bytes;
+ } while (u64_stats_fetch_retry_irq(&stats->syncp, start));
+
+ this_tot->tx_bytes += bytes;
+ this_tot->tx_packets += packets;
+
+ stats = &nvchan->rx_stats;
+ do {
+ start = u64_stats_fetch_begin_irq(&stats->syncp);
+ packets = stats->packets;
+ bytes = stats->bytes;
+ } while (u64_stats_fetch_retry_irq(&stats->syncp, start));
+
+ this_tot->rx_bytes += bytes;
+ this_tot->rx_packets += packets;
+ }
+}
+
static void netvsc_get_stats64(struct net_device *net,
struct rtnl_link_stats64 *t)
{
@@ -1215,6 +1273,23 @@ static const struct {
{ "rx_no_memory", offsetof(struct netvsc_ethtool_stats, rx_no_memory) },
{ "stop_queue", offsetof(struct netvsc_ethtool_stats, stop_queue) },
{ "wake_queue", offsetof(struct netvsc_ethtool_stats, wake_queue) },
+}, pcpu_stats[] = {
+ { "cpu%u_rx_packets",
+ offsetof(struct netvsc_ethtool_pcpu_stats, rx_packets) },
+ { "cpu%u_rx_bytes",
+ offsetof(struct netvsc_ethtool_pcpu_stats, rx_bytes) },
+ { "cpu%u_tx_packets",
+ offsetof(struct netvsc_ethtool_pcpu_stats, tx_packets) },
+ { "cpu%u_tx_bytes",
+ offsetof(struct netvsc_ethtool_pcpu_stats, tx_bytes) },
+ { "cpu%u_vf_rx_packets",
+ offsetof(struct netvsc_ethtool_pcpu_stats, vf_rx_packets) },
+ { "cpu%u_vf_rx_bytes",
+ offsetof(struct netvsc_ethtool_pcpu_stats, vf_rx_bytes) },
+ { "cpu%u_vf_tx_packets",
+ offsetof(struct netvsc_ethtool_pcpu_stats, vf_tx_packets) },
+ { "cpu%u_vf_tx_bytes",
+ offsetof(struct netvsc_ethtool_pcpu_stats, vf_tx_bytes) },
}, vf_stats[] = {
{ "vf_rx_packets", offsetof(struct netvsc_vf_pcpu_stats, rx_packets) },
{ "vf_rx_bytes", offsetof(struct netvsc_vf_pcpu_stats, rx_bytes) },
@@ -1226,6 +1301,9 @@ static const struct {
#define NETVSC_GLOBAL_STATS_LEN ARRAY_SIZE(netvsc_stats)
#define NETVSC_VF_STATS_LEN ARRAY_SIZE(vf_stats)
+/* statistics per queue (rx/tx packets/bytes) */
+#define NETVSC_PCPU_STATS_LEN (num_present_cpus() * ARRAY_SIZE(pcpu_stats))
+
/* 4 statistics per queue (rx/tx packets/bytes) */
#define NETVSC_QUEUE_STATS_LEN(dev) ((dev)->num_chn * 4)
@@ -1241,7 +1319,8 @@ static int netvsc_get_sset_count(struct net_device *dev, int string_set)
case ETH_SS_STATS:
return NETVSC_GLOBAL_STATS_LEN
+ NETVSC_VF_STATS_LEN
- + NETVSC_QUEUE_STATS_LEN(nvdev);
+ + NETVSC_QUEUE_STATS_LEN(nvdev)
+ + NETVSC_PCPU_STATS_LEN;
default:
return -EINVAL;
}
@@ -1255,9 +1334,10 @@ static void netvsc_get_ethtool_stats(struct net_device *dev,
const void *nds = &ndc->eth_stats;
const struct netvsc_stats *qstats;
struct netvsc_vf_pcpu_stats sum;
+ struct netvsc_ethtool_pcpu_stats *pcpu_sum;
unsigned int start;
u64 packets, bytes;
- int i, j;
+ int i, j, cpu;
if (!nvdev)
return;
@@ -1289,6 +1369,19 @@ static void netvsc_get_ethtool_stats(struct net_device *dev,
data[i++] = packets;
data[i++] = bytes;
}
+
+ pcpu_sum = kvmalloc_array(num_possible_cpus(),
+ sizeof(struct netvsc_ethtool_pcpu_stats),
+ GFP_KERNEL);
+ netvsc_get_pcpu_stats(dev, pcpu_sum);
+ for_each_present_cpu(cpu) {
+ struct netvsc_ethtool_pcpu_stats *this_sum = &pcpu_sum[cpu];
+
+ for (j = 0; j < ARRAY_SIZE(pcpu_stats); j++)
+ data[i++] = *(u64 *)((void *)this_sum
+ + pcpu_stats[j].offset);
+ }
+ kvfree(pcpu_sum);
}
static void netvsc_get_strings(struct net_device *dev, u32 stringset, u8 *data)
@@ -1296,7 +1389,7 @@ static void netvsc_get_strings(struct net_device *dev, u32 stringset, u8 *data)
struct net_device_context *ndc = netdev_priv(dev);
struct netvsc_device *nvdev = rtnl_dereference(ndc->nvdev);
u8 *p = data;
- int i;
+ int i, cpu;
if (!nvdev)
return;
@@ -1324,6 +1417,13 @@ static void netvsc_get_strings(struct net_device *dev, u32 stringset, u8 *data)
p += ETH_GSTRING_LEN;
}
+ for_each_present_cpu(cpu) {
+ for (i = 0; i < ARRAY_SIZE(pcpu_stats); i++) {
+ sprintf(p, pcpu_stats[i].name, cpu);
+ p += ETH_GSTRING_LEN;
+ }
+ }
+
break;
}
}
generated by cgit v1.2.3 (git 2.39.1) at 2024-11-09 10:55:06 +0000