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Code Issues Releases Wiki Activity

virtio_net: add the total stats field

Browse source 
Now, we just show the stats of every queue.

But for the user, the total values of every stat may are valuable.

NIC statistics:
     rx_packets: 373522
     rx_bytes: 85919736
     rx_drops: 0
     rx_xdp_packets: 0
     rx_xdp_tx: 0
     rx_xdp_redirects: 0
     rx_xdp_drops: 0
     rx_kicks: 11125
     rx_hw_notifications: 0
     rx_hw_packets: 1325870
     rx_hw_bytes: 263348963
     rx_hw_interrupts: 0
     rx_hw_drops: 1451
     rx_hw_drop_overruns: 0
     rx_hw_csum_valid: 1325870
     rx_hw_needs_csum: 1325870
     rx_hw_csum_none: 0
     rx_hw_csum_bad: 0
     rx_hw_ratelimit_packets: 0
     rx_hw_ratelimit_bytes: 0
     tx_packets: 10050
     tx_bytes: 1230176
     tx_xdp_tx: 0
     tx_xdp_tx_drops: 0
     tx_kicks: 10050
     tx_timeouts: 0
     tx_hw_notifications: 0
     tx_hw_packets: 32281
     tx_hw_bytes: 4315590
     tx_hw_interrupts: 0
     tx_hw_drops: 0
     tx_hw_drop_malformed: 0
     tx_hw_csum_none: 0
     tx_hw_needs_csum: 32281
     tx_hw_ratelimit_packets: 0
     tx_hw_ratelimit_bytes: 0
     rx0_packets: 373522
     rx0_bytes: 85919736
     rx0_drops: 0
     rx0_xdp_packets: 0
     rx0_xdp_tx: 0
     rx0_xdp_redirects: 0
     rx0_xdp_drops: 0
     rx0_kicks: 11125
     rx0_hw_notifications: 0
     rx0_hw_packets: 1325870
     rx0_hw_bytes: 263348963
     rx0_hw_interrupts: 0
     rx0_hw_drops: 1451
     rx0_hw_drop_overruns: 0
     rx0_hw_csum_valid: 1325870
     rx0_hw_needs_csum: 1325870
     rx0_hw_csum_none: 0
     rx0_hw_csum_bad: 0
     rx0_hw_ratelimit_packets: 0
     rx0_hw_ratelimit_bytes: 0
     tx0_packets: 10050
     tx0_bytes: 1230176
     tx0_xdp_tx: 0
     tx0_xdp_tx_drops: 0
     tx0_kicks: 10050
     tx0_timeouts: 0
     tx0_hw_notifications: 0
     tx0_hw_packets: 32281
     tx0_hw_bytes: 4315590
     tx0_hw_interrupts: 0
     tx0_hw_drops: 0
     tx0_hw_drop_malformed: 0
     tx0_hw_csum_none: 0
     tx0_hw_needs_csum: 32281
     tx0_hw_ratelimit_packets: 0
     tx0_hw_ratelimit_bytes: 0

Signed-off-by: Xuan Zhuo <xuanzhuo@linux.alibaba.com>
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
This commit is contained in:
Xuan Zhuo 2024-04-26 11:39:26 +08:00 committed by Paolo Abeni
parent d86769b9d2
commit d806e1ff79
1 changed files with 69 additions and 12 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

81
drivers/net/virtio_net.c
View file

@ -3383,14 +3383,15 @@ static void virtnet_stats_sprintf(u8 **p, const char *fmt, const char *noq_fmt,
}
}
/* qid == -1: for rx/tx queue total field */
static void virtnet_get_stats_string(struct virtnet_info *vi, int type, int qid, u8 **data)
{
const struct virtnet_stat_desc *desc;
const char *fmt, *noq_fmt;
u8 *p = *data;
u32 num = 0;
u32 num;
if (type == VIRTNET_Q_TYPE_CQ) {
if (type == VIRTNET_Q_TYPE_CQ && qid >= 0) {
noq_fmt = "cq_hw_%s";
if (vi->device_stats_cap & VIRTIO_NET_STATS_TYPE_CVQ) {
@ -3403,65 +3404,69 @@ static void virtnet_get_stats_string(struct virtnet_info *vi, int type, int qid,
if (type == VIRTNET_Q_TYPE_RX) {
fmt = "rx%u_%s";
noq_fmt = "rx_%s";
desc = &virtnet_rq_stats_desc[0];
num = ARRAY_SIZE(virtnet_rq_stats_desc);
virtnet_stats_sprintf(&p, fmt, NULL, num, qid, desc);
virtnet_stats_sprintf(&p, fmt, noq_fmt, num, qid, desc);
fmt = "rx%u_hw_%s";
noq_fmt = "rx_hw_%s";
if (vi->device_stats_cap & VIRTIO_NET_STATS_TYPE_RX_BASIC) {
desc = &virtnet_stats_rx_basic_desc[0];
num = ARRAY_SIZE(virtnet_stats_rx_basic_desc);
virtnet_stats_sprintf(&p, fmt, NULL, num, qid, desc);
virtnet_stats_sprintf(&p, fmt, noq_fmt, num, qid, desc);
}
if (vi->device_stats_cap & VIRTIO_NET_STATS_TYPE_RX_CSUM) {
desc = &virtnet_stats_rx_csum_desc[0];
num = ARRAY_SIZE(virtnet_stats_rx_csum_desc);
virtnet_stats_sprintf(&p, fmt, NULL, num, qid, desc);
virtnet_stats_sprintf(&p, fmt, noq_fmt, num, qid, desc);
}
if (vi->device_stats_cap & VIRTIO_NET_STATS_TYPE_RX_SPEED) {
desc = &virtnet_stats_rx_speed_desc[0];
num = ARRAY_SIZE(virtnet_stats_rx_speed_desc);
virtnet_stats_sprintf(&p, fmt, NULL, num, qid, desc);
virtnet_stats_sprintf(&p, fmt, noq_fmt, num, qid, desc);
}
}
if (type == VIRTNET_Q_TYPE_TX) {
fmt = "tx%u_%s";
noq_fmt = "tx_%s";
desc = &virtnet_sq_stats_desc[0];
num = ARRAY_SIZE(virtnet_sq_stats_desc);
virtnet_stats_sprintf(&p, fmt, NULL, num, qid, desc);
virtnet_stats_sprintf(&p, fmt, noq_fmt, num, qid, desc);
fmt = "tx%u_hw_%s";
noq_fmt = "tx_hw_%s";
if (vi->device_stats_cap & VIRTIO_NET_STATS_TYPE_TX_BASIC) {
desc = &virtnet_stats_tx_basic_desc[0];
num = ARRAY_SIZE(virtnet_stats_tx_basic_desc);
virtnet_stats_sprintf(&p, fmt, NULL, num, qid, desc);
virtnet_stats_sprintf(&p, fmt, noq_fmt, num, qid, desc);
}
if (vi->device_stats_cap & VIRTIO_NET_STATS_TYPE_TX_GSO) {
desc = &virtnet_stats_tx_gso_desc[0];
num = ARRAY_SIZE(virtnet_stats_tx_gso_desc);
virtnet_stats_sprintf(&p, fmt, NULL, num, qid, desc);
virtnet_stats_sprintf(&p, fmt, noq_fmt, num, qid, desc);
}
if (vi->device_stats_cap & VIRTIO_NET_STATS_TYPE_TX_SPEED) {
desc = &virtnet_stats_tx_speed_desc[0];
num = ARRAY_SIZE(virtnet_stats_tx_speed_desc);
virtnet_stats_sprintf(&p, fmt, NULL, num, qid, desc);
virtnet_stats_sprintf(&p, fmt, noq_fmt, num, qid, desc);
}
}
@ -3542,6 +3547,49 @@ static void virtnet_stats_ctx_init(struct virtnet_info *vi,
}
}
/* stats_sum_queue - Calculate the sum of the same fields in sq or rq.
* @sum: the position to store the sum values
* @num: field num
* @q_value: the first queue fields
* @q_num: number of the queues
*/
static void stats_sum_queue(u64 *sum, u32 num, u64 *q_value, u32 q_num)
{
u32 step = num;
int i, j;
u64 *p;
for (i = 0; i < num; ++i) {
p = sum + i;
*p = 0;
for (j = 0; j < q_num; ++j)
*p += *(q_value + i + j * step);
}
}
static void virtnet_fill_total_fields(struct virtnet_info *vi,
struct virtnet_stats_ctx *ctx)
{
u64 *data, *first_rx_q, *first_tx_q;
u32 num_cq, num_rx, num_tx;
num_cq = ctx->desc_num[VIRTNET_Q_TYPE_CQ];
num_rx = ctx->desc_num[VIRTNET_Q_TYPE_RX];
num_tx = ctx->desc_num[VIRTNET_Q_TYPE_TX];
first_rx_q = ctx->data + num_rx + num_tx + num_cq;
first_tx_q = first_rx_q + vi->curr_queue_pairs * num_rx;
data = ctx->data;
stats_sum_queue(data, num_rx, first_rx_q, vi->curr_queue_pairs);
data = ctx->data + num_rx;
stats_sum_queue(data, num_tx, first_tx_q, vi->curr_queue_pairs);
}
/* virtnet_fill_stats - copy the stats to ethtool -S
* The stats source is the device or the driver.
*
@ -3569,7 +3617,9 @@ static void virtnet_fill_stats(struct virtnet_info *vi, u32 qid,
queue_type = vq_type(vi, qid);
bitmap = ctx->bitmap[queue_type];
offset = 0;
/* skip the total fields of pairs */
offset = num_rx + num_tx;
if (queue_type == VIRTNET_Q_TYPE_TX) {
offset += num_cq + num_rx * vi->curr_queue_pairs + num_tx * (qid / 2);
@ -3780,6 +3830,10 @@ static void virtnet_get_strings(struct net_device *dev, u32 stringset, u8 *data)
switch (stringset) {
case ETH_SS_STATS:
/* Generate the total field names. */
virtnet_get_stats_string(vi, VIRTNET_Q_TYPE_RX, -1, &p);
virtnet_get_stats_string(vi, VIRTNET_Q_TYPE_TX, -1, &p);
virtnet_get_stats_string(vi, VIRTNET_Q_TYPE_CQ, 0, &p);
for (i = 0; i < vi->curr_queue_pairs; ++i)
@ -3803,7 +3857,8 @@ static int virtnet_get_sset_count(struct net_device *dev, int sset)
pair_count = ctx.desc_num[VIRTNET_Q_TYPE_RX] + ctx.desc_num[VIRTNET_Q_TYPE_TX];
return ctx.desc_num[VIRTNET_Q_TYPE_CQ] + vi->curr_queue_pairs * pair_count;
return pair_count + ctx.desc_num[VIRTNET_Q_TYPE_CQ] +
vi->curr_queue_pairs * pair_count;
default:
return -EOPNOTSUPP;
}
@ -3837,6 +3892,8 @@ static void virtnet_get_ethtool_stats(struct net_device *dev,
virtnet_fill_stats(vi, i * 2 + 1, &ctx, stats_base, true, 0);
} while (u64_stats_fetch_retry(&sq->stats.syncp, start));
}
virtnet_fill_total_fields(vi, &ctx);
}
static void virtnet_get_channels(struct net_device *dev,