[dpdk-dev] [PATCH v4 3/8] ethdev: expose extended error stats
Maryam Tahhan
maryam.tahhan at intel.com
Sun Jul 5 19:39:55 CEST 2015
Extend rte_eth_xstats_get to retrieve additional stats from the device
driver as well the ethdev generic stats.
Signed-off-by: Maryam Tahhan <maryam.tahhan at intel.com>
---
drivers/net/ixgbe/ixgbe_ethdev.c | 7 ++++---
lib/librte_ether/rte_ethdev.c | 25 ++++++++++++++++---------
2 files changed, 20 insertions(+), 12 deletions(-)
diff --git a/drivers/net/ixgbe/ixgbe_ethdev.c b/drivers/net/ixgbe/ixgbe_ethdev.c
index 7feb03c..5971d41 100644
--- a/drivers/net/ixgbe/ixgbe_ethdev.c
+++ b/drivers/net/ixgbe/ixgbe_ethdev.c
@@ -2035,6 +2035,7 @@ ixgbe_dev_xstats_get(struct rte_eth_dev *dev, struct rte_eth_xstats *xstats,
total_qprdc = 0;
rxnfgpc = 0;
txdgpc = 0;
+ count = n - IXGBE_NB_XSTATS;
ixgbe_read_stats_registers(hw, hw_stats, &total_missed_rx, &total_qbrc,
&total_qprc, &rxnfgpc, &txdgpc, &total_qprdc);
@@ -2047,13 +2048,13 @@ ixgbe_dev_xstats_get(struct rte_eth_dev *dev, struct rte_eth_xstats *xstats,
/* Extended stats */
for (i = 0; i < IXGBE_NB_XSTATS; i++) {
- snprintf(xstats[i].name, sizeof(xstats[i].name),
+ snprintf(xstats[count].name, sizeof(xstats[i].name),
"%s", rte_ixgbe_stats_strings[i].name);
- xstats[i].value = *(uint64_t *)(((char *)hw_stats) +
+ xstats[count++].value = *(uint64_t *)(((char *)hw_stats) +
rte_ixgbe_stats_strings[i].offset);
}
- return count;
+ return IXGBE_NB_XSTATS;
}
static void
diff --git a/lib/librte_ether/rte_ethdev.c b/lib/librte_ether/rte_ethdev.c
index da915db..e392f60 100644
--- a/lib/librte_ether/rte_ethdev.c
+++ b/lib/librte_ether/rte_ethdev.c
@@ -1681,26 +1681,33 @@ rte_eth_xstats_get(uint8_t port_id, struct rte_eth_xstats *xstats,
{
struct rte_eth_stats eth_stats;
struct rte_eth_dev *dev;
- unsigned count, i, q;
+ unsigned count = 0, i, q;
+ signed xcount = 0;
uint64_t val, *stats_ptr;
VALID_PORTID_OR_ERR_RET(port_id, -EINVAL);
dev = &rte_eth_devices[port_id];
- /* implemented by the driver */
- if (dev->dev_ops->xstats_get != NULL)
- return (*dev->dev_ops->xstats_get)(dev, xstats, n);
-
- /* else, return generic statistics */
+ /* Return generic statistics */
count = RTE_NB_STATS;
count += dev->data->nb_rx_queues * RTE_NB_RXQ_STATS;
count += dev->data->nb_tx_queues * RTE_NB_TXQ_STATS;
+
+ /* implemented by the driver */
+ if (dev->dev_ops->xstats_get != NULL) {
+ /* Retrieve the xstats from the driver at the end of the
+ * xstats struct.
+ */
+ xcount = (*dev->dev_ops->xstats_get)(dev, xstats, n);
+ if (xcount < 0)
+ return xcount;
+ }
+
if (n < count)
- return count;
+ return count + xcount;
/* now fill the xstats structure */
-
count = 0;
rte_eth_stats_get(port_id, ð_stats);
@@ -1742,7 +1749,7 @@ rte_eth_xstats_get(uint8_t port_id, struct rte_eth_xstats *xstats,
}
}
- return count;
+ return count + xcount;
}
/* reset ethdev extended statistics */
--
1.9.3
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