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authorShesha Sreenivasamurthy <shesha@cisco.com>2016-03-02 10:33:26 -0800
committerGerrit Code Review <gerrit@fd.io>2016-03-04 20:49:08 +0000
commit9455084c7f85d5930182c4ad5e060f648b21ccfa (patch)
tree5a7662547cfbdeb909345ac7ff4b7cdb97f3254b /vnet
parent8e94c2a08038a01d26eaec0b88858c1299398233 (diff)
Collect per Q stats for vhost-user interface
Change-Id: I394960c300ff7a81c4c8e05afd5a4175e66666eb Signed-off-by: Shesha Sreenivasamurthy <shesha@cisco.com>
Diffstat (limited to 'vnet')
-rw-r--r--vnet/vnet/devices/dpdk/device.c31
-rw-r--r--vnet/vnet/devices/dpdk/dpdk.h2
-rw-r--r--vnet/vnet/devices/dpdk/dpdk_priv.h14
-rw-r--r--vnet/vnet/devices/dpdk/format.c37
-rw-r--r--vnet/vnet/devices/dpdk/vhost_user.c12
5 files changed, 87 insertions, 9 deletions
diff --git a/vnet/vnet/devices/dpdk/device.c b/vnet/vnet/devices/dpdk/device.c
index a93e9f4c..02703cc5 100644
--- a/vnet/vnet/devices/dpdk/device.c
+++ b/vnet/vnet/devices/dpdk/device.c
@@ -308,14 +308,24 @@ u32 tx_burst_vector_internal (vlib_main_t * vm,
#endif
if (PREDICT_TRUE(tx_head > tx_tail))
{
+ int i; u32 bytes = 0;
+ struct rte_mbuf **pkts = &tx_vector[tx_tail];
+ for (i = 0; i < (tx_head - tx_tail); i++) {
+ struct rte_mbuf *buff = pkts[i];
+ bytes += rte_pktmbuf_data_len(buff);
+ }
+
/* no wrap, transmit in one burst */
rv = rte_vhost_enqueue_burst(&xd->vu_vhost_dev, offset + VIRTIO_RXQ,
&tx_vector[tx_tail],
(uint16_t) (tx_head-tx_tail));
if (PREDICT_TRUE(rv > 0))
{
+ dpdk_vu_vring *vring = &(xd->vu_intf->vrings[offset + VIRTIO_RXQ]);
+ vring->packets += rv;
+ vring->bytes += bytes;
+
if (dpdk_vhost_user_want_interrupt(xd, offset + VIRTIO_RXQ)) {
- dpdk_vu_vring *vring = &(xd->vu_intf->vrings[offset + VIRTIO_RXQ]);
vring->n_since_last_int += rv;
f64 now = vlib_time_now (vm);
@@ -336,14 +346,23 @@ u32 tx_burst_vector_internal (vlib_main_t * vm,
* so we can try to transmit the rest. If we didn't transmit
* everything, stop now.
*/
+ int i; u32 bytes = 0;
+ struct rte_mbuf **pkts = &tx_vector[tx_tail];
+ for (i = 0; i < (DPDK_TX_RING_SIZE - tx_tail); i++) {
+ struct rte_mbuf *buff = pkts[i];
+ bytes += rte_pktmbuf_data_len(buff);
+ }
rv = rte_vhost_enqueue_burst(&xd->vu_vhost_dev, offset + VIRTIO_RXQ,
&tx_vector[tx_tail],
(uint16_t) (DPDK_TX_RING_SIZE - tx_tail));
if (PREDICT_TRUE(rv > 0))
{
+ dpdk_vu_vring *vring = &(xd->vu_intf->vrings[offset + VIRTIO_RXQ]);
+ vring->packets += rv;
+ vring->bytes += bytes;
+
if (dpdk_vhost_user_want_interrupt(xd, offset + VIRTIO_RXQ)) {
- dpdk_vu_vring *vring = &(xd->vu_intf->vrings[offset + VIRTIO_RXQ]);
vring->n_since_last_int += rv;
f64 now = vlib_time_now (vm);
@@ -825,6 +844,14 @@ static void dpdk_clear_hw_interface_counters (u32 instance)
memset (&xd->last_stats, 0, sizeof (xd->last_stats));
}
rte_eth_xstats_reset(xd->device_index);
+
+ if (PREDICT_FALSE(xd->dev_type == VNET_DPDK_DEV_VHOST_USER)) {
+ int i;
+ for (i = 0; i < xd->rx_q_used * VIRTIO_QNUM; i++) {
+ xd->vu_intf->vrings[i].packets = 0;
+ xd->vu_intf->vrings[i].bytes = 0;
+ }
+ }
}
#ifdef RTE_LIBRTE_KNI
diff --git a/vnet/vnet/devices/dpdk/dpdk.h b/vnet/vnet/devices/dpdk/dpdk.h
index e90f4030..e0ab0c58 100644
--- a/vnet/vnet/devices/dpdk/dpdk.h
+++ b/vnet/vnet/devices/dpdk/dpdk.h
@@ -148,6 +148,8 @@ typedef struct {
u32 callfd_idx;
u32 n_since_last_int;
f64 int_deadline;
+ u64 packets;
+ u64 bytes;
} dpdk_vu_vring;
typedef struct {
diff --git a/vnet/vnet/devices/dpdk/dpdk_priv.h b/vnet/vnet/devices/dpdk/dpdk_priv.h
index 49e69f44..2e4909f9 100644
--- a/vnet/vnet/devices/dpdk/dpdk_priv.h
+++ b/vnet/vnet/devices/dpdk/dpdk_priv.h
@@ -96,11 +96,21 @@ dpdk_rx_burst ( dpdk_main_t * dm, dpdk_device_t * xd, u16 queue_id)
bm->pktmbuf_pools[socket_id],
xd->rx_vectors[queue_id], VLIB_FRAME_SIZE);
+ int i; u32 bytes = 0;
+ struct rte_mbuf **pkts = xd->rx_vectors[queue_id];
+ for (i = 0; i < n_buffers; i++) {
+ struct rte_mbuf *buff = pkts[i];
+ bytes += rte_pktmbuf_data_len(buff);
+ }
+
f64 now = vlib_time_now (vm);
+ dpdk_vu_vring *vring = &(xd->vu_intf->vrings[offset + VIRTIO_TXQ]);
+ vring->packets += n_buffers;
+ vring->bytes += bytes;
+
/* send pending interrupts if needed */
if (dpdk_vhost_user_want_interrupt(xd, offset + VIRTIO_TXQ)) {
- dpdk_vu_vring *vring = &(xd->vu_intf->vrings[offset + VIRTIO_TXQ]);
vring->n_since_last_int += n_buffers;
if ((vring->n_since_last_int && (vring->int_deadline < now))
@@ -109,7 +119,7 @@ dpdk_rx_burst ( dpdk_main_t * dm, dpdk_device_t * xd, u16 queue_id)
}
if (dpdk_vhost_user_want_interrupt(xd, offset + VIRTIO_RXQ)) {
- dpdk_vu_vring *vring = &(xd->vu_intf->vrings[offset + VIRTIO_RXQ]);
+ vring = &(xd->vu_intf->vrings[offset + VIRTIO_RXQ]);
if (vring->n_since_last_int && (vring->int_deadline < now))
dpdk_vhost_user_send_interrupt(vm, xd, offset + VIRTIO_RXQ);
}
diff --git a/vnet/vnet/devices/dpdk/format.c b/vnet/vnet/devices/dpdk/format.c
index daf4386d..447dfffb 100644
--- a/vnet/vnet/devices/dpdk/format.c
+++ b/vnet/vnet/devices/dpdk/format.c
@@ -513,6 +513,13 @@ u8 * format_dpdk_device (u8 * s, va_list * args)
format_dpdk_rss_hf_name, di.flow_type_rss_offloads);
}
+ if (verbose && xd->dev_type == VNET_DPDK_DEV_VHOST_USER) {
+ s = format(s, "%Uqueue size (max): rx %d (%d) tx %d (%d)\n",
+ format_white_space, indent + 2,
+ xd->rx_q_used, xd->rx_q_used,
+ xd->tx_q_used, xd->tx_q_used);
+ }
+
if (xd->cpu_socket > -1)
s = format (s, "%Ucpu socket %d",
format_white_space, indent + 2,
@@ -536,7 +543,7 @@ u8 * format_dpdk_device (u8 * s, va_list * args)
vec_foreach(xstat, xd->xstats)
{
- if (xstat->value)
+ if (verbose == 2 || (verbose && xstat->value))
{
/* format_c_identifier don't like c strings inside vector */
u8 * name = format(0,"%s", xstat->name);
@@ -547,6 +554,34 @@ u8 * format_dpdk_device (u8 * s, va_list * args)
}
}
+ if (verbose && xd->dev_type == VNET_DPDK_DEV_VHOST_USER) {
+ int i;
+ for (i = 0; i < xd->rx_q_used * VIRTIO_QNUM; i++) {
+ u8 * name;
+ if (verbose == 2 || xd->vu_intf->vrings[i].packets) {
+ if (i & 1) {
+ name = format(NULL, "tx q%d packets", i >> 1);
+ } else {
+ name = format(NULL, "rx q%d packets", i >> 1);
+ }
+ xs = format(xs, "\n%U%-38U%16Ld",
+ format_white_space, indent + 4,
+ format_c_identifier, name, xd->vu_intf->vrings[i].packets);
+ vec_free(name);
+
+ if (i & 1) {
+ name = format(NULL, "tx q%d bytes", i >> 1);
+ } else {
+ name = format(NULL, "rx q%d bytes", i >> 1);
+ }
+ xs = format(xs, "\n%U%-38U%16Ld",
+ format_white_space, indent + 4,
+ format_c_identifier, name, xd->vu_intf->vrings[i].bytes);
+ vec_free(name);
+ }
+ }
+ }
+
if (xs)
{
s = format(s, "\n%Uextended stats:%v",
diff --git a/vnet/vnet/devices/dpdk/vhost_user.c b/vnet/vnet/devices/dpdk/vhost_user.c
index 735c1751..9db4a0ac 100644
--- a/vnet/vnet/devices/dpdk/vhost_user.c
+++ b/vnet/vnet/devices/dpdk/vhost_user.c
@@ -201,6 +201,7 @@ dpdk_create_vhost_user_if_internal (u32 * hw_if_index, u32 if_id, u8 *hwaddr)
clib_error_t * error;
dpdk_device_and_queue_t * dq;
int num_qpairs = 1;
+ dpdk_vu_intf_t *vui = NULL;
#if RTE_VERSION >= RTE_VERSION_NUM(2, 2, 0, 0)
num_qpairs = dm->use_rss < 1 ? 1 : tm->n_vlib_mains;
@@ -238,11 +239,14 @@ dpdk_create_vhost_user_if_internal (u32 * hw_if_index, u32 if_id, u8 *hwaddr)
xd->vu_if_id = if_id;
// reset virtqueues
+ vui = xd->vu_intf;
for (j = 0; j < num_qpairs * VIRTIO_QNUM; j++) {
memset(xd->vu_vhost_dev.virtqueue[j], 0, sizeof(struct vhost_virtqueue));
xd->vu_vhost_dev.virtqueue[j]->kickfd = -1;
xd->vu_vhost_dev.virtqueue[j]->callfd = -1;
xd->vu_vhost_dev.virtqueue[j]->backend = -1;
+ vui->vrings[j].packets = 0;
+ vui->vrings[j].bytes = 0;
}
// reset lockp
@@ -283,7 +287,7 @@ dpdk_create_vhost_user_if_internal (u32 * hw_if_index, u32 if_id, u8 *hwaddr)
xd->device_index = xd - dm->devices;
xd->per_interface_next_index = ~0;
- xd->vu_intf = NULL;
+ xd->vu_intf = clib_mem_alloc (sizeof(*(xd->vu_intf)));
xd->vu_vhost_dev.mem = clib_mem_alloc (sizeof(struct virtio_memory) +
VHOST_MEMORY_MAX_NREGIONS *
@@ -296,12 +300,15 @@ dpdk_create_vhost_user_if_internal (u32 * hw_if_index, u32 if_id, u8 *hwaddr)
* New virtqueue structure is an array of VHOST_MAX_QUEUE_PAIRS * 2
* We need to allocate numq pairs.
*/
+ vui = xd->vu_intf;
for (j = 0; j < num_qpairs * VIRTIO_QNUM; j++) {
xd->vu_vhost_dev.virtqueue[j] = clib_mem_alloc (sizeof(struct vhost_virtqueue));
memset(xd->vu_vhost_dev.virtqueue[j], 0, sizeof(struct vhost_virtqueue));
xd->vu_vhost_dev.virtqueue[j]->kickfd = -1;
xd->vu_vhost_dev.virtqueue[j]->callfd = -1;
xd->vu_vhost_dev.virtqueue[j]->backend = -1;
+ vui->vrings[j].packets = 0;
+ vui->vrings[j].bytes = 0;
}
dpdk_device_lock_init(xd);
@@ -361,9 +368,6 @@ dpdk_create_vhost_user_if_internal (u32 * hw_if_index, u32 if_id, u8 *hwaddr)
sw = vnet_get_hw_sw_interface (dm->vnet_main, xd->vlib_hw_if_index);
xd->vlib_sw_if_index = sw->sw_if_index;
- if (!xd->vu_intf)
- xd->vu_intf = clib_mem_alloc (sizeof(*(xd->vu_intf)));
-
*hw_if_index = xd->vlib_hw_if_index;
DBG_SOCK("xd->device_index: %d, dm->input_cpu_count: %d, "