[dpdk-dev] [PATCH 2/2] net/sfc: add support for statistics reset
Andrew Rybchenko
arybchenko at solarflare.com
Fri Mar 3 13:49:25 CET 2017
From: Ivan Malov <ivan.malov at oktetlabs.ru>
Signed-off-by: Ivan Malov <ivan.malov at oktetlabs.ru>
Signed-off-by: Andrew Rybchenko <arybchenko at solarflare.com>
---
drivers/net/sfc/sfc.h | 2 ++
drivers/net/sfc/sfc_ethdev.c | 23 +++++++++++++++++++++++
drivers/net/sfc/sfc_port.c | 24 ++++++++++++++++++++++++
3 files changed, 49 insertions(+)
diff --git a/drivers/net/sfc/sfc.h b/drivers/net/sfc/sfc.h
index 8c6c02f..655328f 100644
--- a/drivers/net/sfc/sfc.h
+++ b/drivers/net/sfc/sfc.h
@@ -153,6 +153,7 @@ struct sfc_port {
rte_spinlock_t mac_stats_lock;
uint64_t *mac_stats_buf;
efsys_mem_t mac_stats_dma_mem;
+ boolean_t mac_stats_reset_pending;
uint32_t mac_stats_mask[EFX_MAC_STATS_MASK_NPAGES];
};
@@ -281,6 +282,7 @@ int sfc_dma_alloc(const struct sfc_adapter *sa, const char *name, uint16_t id,
void sfc_port_link_mode_to_info(efx_link_mode_t link_mode,
struct rte_eth_link *link_info);
int sfc_port_update_mac_stats(struct sfc_adapter *sa);
+int sfc_port_reset_mac_stats(struct sfc_adapter *sa);
int sfc_set_rx_mode(struct sfc_adapter *sa);
diff --git a/drivers/net/sfc/sfc_ethdev.c b/drivers/net/sfc/sfc_ethdev.c
index 71587fb..cac01ac 100644
--- a/drivers/net/sfc/sfc_ethdev.c
+++ b/drivers/net/sfc/sfc_ethdev.c
@@ -525,6 +525,27 @@
rte_spinlock_unlock(&port->mac_stats_lock);
}
+static void
+sfc_stats_reset(struct rte_eth_dev *dev)
+{
+ struct sfc_adapter *sa = dev->data->dev_private;
+ struct sfc_port *port = &sa->port;
+ int rc;
+
+ if (sa->state != SFC_ADAPTER_STARTED) {
+ /*
+ * The operation cannot be done if port is not started; it
+ * will be scheduled to be done during the next port start
+ */
+ port->mac_stats_reset_pending = B_TRUE;
+ return;
+ }
+
+ rc = sfc_port_reset_mac_stats(sa);
+ if (rc != 0)
+ sfc_err(sa, "failed to reset statistics (rc = %d)", rc);
+}
+
static int
sfc_xstats_get(struct rte_eth_dev *dev, struct rte_eth_xstat *xstats,
unsigned int xstats_count)
@@ -1200,7 +1221,9 @@
.allmulticast_disable = sfc_dev_allmulti_disable,
.link_update = sfc_dev_link_update,
.stats_get = sfc_stats_get,
+ .stats_reset = sfc_stats_reset,
.xstats_get = sfc_xstats_get,
+ .xstats_reset = sfc_stats_reset,
.xstats_get_names = sfc_xstats_get_names,
.dev_infos_get = sfc_dev_infos_get,
.dev_supported_ptypes_get = sfc_dev_supported_ptypes_get,
diff --git a/drivers/net/sfc/sfc_port.c b/drivers/net/sfc/sfc_port.c
index 5998a99..e2f5043 100644
--- a/drivers/net/sfc/sfc_port.c
+++ b/drivers/net/sfc/sfc_port.c
@@ -61,6 +61,19 @@
return 0;
}
+int
+sfc_port_reset_mac_stats(struct sfc_adapter *sa)
+{
+ struct sfc_port *port = &sa->port;
+ int rc;
+
+ rte_spinlock_lock(&port->mac_stats_lock);
+ rc = efx_mac_stats_clear(sa->nic);
+ rte_spinlock_unlock(&port->mac_stats_lock);
+
+ return rc;
+}
+
static int
sfc_port_init_dev_link(struct sfc_adapter *sa)
{
@@ -140,6 +153,15 @@
if (rc != 0)
goto fail_mac_filter_set;
+ if (port->mac_stats_reset_pending) {
+ rc = sfc_port_reset_mac_stats(sa);
+ if (rc != 0)
+ sfc_err(sa, "statistics reset failed (requested "
+ "before the port was started)");
+
+ port->mac_stats_reset_pending = B_FALSE;
+ }
+
efx_mac_stats_get_mask(sa->nic, port->mac_stats_mask,
sizeof(port->mac_stats_mask));
@@ -237,6 +259,8 @@
if (rc != 0)
goto fail_mac_stats_dma_alloc;
+ port->mac_stats_reset_pending = B_FALSE;
+
sfc_log_init(sa, "done");
return 0;
--
1.8.2.3
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