[dpdk-dev] [PATCH v1 5/6] net/e1000: support xstats by ID
Michal Jastrzebski
michalx.k.jastrzebski at intel.com
Thu Apr 27 16:42:39 CEST 2017
From: Kuba Kozak <kubax.kozak at intel.com>
To achieve functionality of retrieving only specific statistics
given by application there are two new functions added:
eth_igb_xstats_get_by_id() which retrieve
values of statistics specified by ids array
and eth_igb_xstats_get_names_by_id() which retrieve
names of statistics specified by ids array.
Signed-off-by: Kuba Kozak <kubax.kozak at intel.com>
---
drivers/net/e1000/igb_ethdev.c | 94 +++++++++++++++++++++++++++++++++++++++++-
1 file changed, 92 insertions(+), 2 deletions(-)
diff --git a/drivers/net/e1000/igb_ethdev.c b/drivers/net/e1000/igb_ethdev.c
index 137780e..ca7c4a8 100644
--- a/drivers/net/e1000/igb_ethdev.c
+++ b/drivers/net/e1000/igb_ethdev.c
@@ -116,9 +116,15 @@ static void eth_igb_stats_get(struct rte_eth_dev *dev,
struct rte_eth_stats *rte_stats);
static int eth_igb_xstats_get(struct rte_eth_dev *dev,
struct rte_eth_xstat *xstats, unsigned n);
+static int eth_igb_xstats_get_by_id(struct rte_eth_dev *dev,
+ const uint64_t *ids,
+ uint64_t *values, unsigned int n);
static int eth_igb_xstats_get_names(struct rte_eth_dev *dev,
struct rte_eth_xstat_name *xstats_names,
- unsigned int limit);
+ unsigned int size);
+static int eth_igb_xstats_get_names_by_id(struct rte_eth_dev *dev,
+ struct rte_eth_xstat_name *xstats_names, const uint64_t *ids,
+ unsigned int limit);
static void eth_igb_stats_reset(struct rte_eth_dev *dev);
static void eth_igb_xstats_reset(struct rte_eth_dev *dev);
static int eth_igb_fw_version_get(struct rte_eth_dev *dev,
@@ -389,6 +395,8 @@ static const struct eth_dev_ops eth_igb_ops = {
.link_update = eth_igb_link_update,
.stats_get = eth_igb_stats_get,
.xstats_get = eth_igb_xstats_get,
+ .xstats_get_by_id = eth_igb_xstats_get_by_id,
+ .xstats_get_names_by_id = eth_igb_xstats_get_names_by_id,
.xstats_get_names = eth_igb_xstats_get_names,
.stats_reset = eth_igb_stats_reset,
.xstats_reset = eth_igb_xstats_reset,
@@ -1845,7 +1853,7 @@ eth_igb_xstats_reset(struct rte_eth_dev *dev)
static int eth_igb_xstats_get_names(__rte_unused struct rte_eth_dev *dev,
struct rte_eth_xstat_name *xstats_names,
- __rte_unused unsigned limit)
+ __rte_unused unsigned int size)
{
unsigned i;
@@ -1862,6 +1870,41 @@ static int eth_igb_xstats_get_names(__rte_unused struct rte_eth_dev *dev,
return IGB_NB_XSTATS;
}
+static int eth_igb_xstats_get_names_by_id(struct rte_eth_dev *dev,
+ struct rte_eth_xstat_name *xstats_names, const uint64_t *ids,
+ unsigned int limit)
+{
+ unsigned int i;
+
+ if (!ids) {
+ if (xstats_names == NULL)
+ return IGB_NB_XSTATS;
+
+ for (i = 0; i < IGB_NB_XSTATS; i++)
+ snprintf(xstats_names[i].name,
+ sizeof(xstats_names[i].name),
+ "%s", rte_igb_stats_strings[i].name);
+
+ return IGB_NB_XSTATS;
+
+ } else {
+ struct rte_eth_xstat_name xstats_names_copy[IGB_NB_XSTATS];
+
+ eth_igb_xstats_get_names_by_id(dev, xstats_names_copy, NULL,
+ IGB_NB_XSTATS);
+
+ for (i = 0; i < limit; i++) {
+ if (ids[i] >= IGB_NB_XSTATS) {
+ PMD_INIT_LOG(ERR, "id value isn't valid");
+ return -1;
+ }
+ strcpy(xstats_names[i].name,
+ xstats_names_copy[ids[i]].name);
+ }
+ return limit;
+ }
+}
+
static int
eth_igb_xstats_get(struct rte_eth_dev *dev, struct rte_eth_xstat *xstats,
unsigned n)
@@ -1892,6 +1935,53 @@ eth_igb_xstats_get(struct rte_eth_dev *dev, struct rte_eth_xstat *xstats,
return IGB_NB_XSTATS;
}
+static int
+eth_igb_xstats_get_by_id(struct rte_eth_dev *dev, const uint64_t *ids,
+ uint64_t *values, unsigned int n)
+{
+ unsigned int i;
+
+ if (!ids) {
+ struct e1000_hw *hw =
+ E1000_DEV_PRIVATE_TO_HW(dev->data->dev_private);
+ struct e1000_hw_stats *hw_stats =
+ E1000_DEV_PRIVATE_TO_STATS(dev->data->dev_private);
+
+ if (n < IGB_NB_XSTATS)
+ return IGB_NB_XSTATS;
+
+ igb_read_stats_registers(hw, hw_stats);
+
+ /* If this is a reset xstats is NULL, and we have cleared the
+ * registers by reading them.
+ */
+ if (!values)
+ return 0;
+
+ /* Extended stats */
+ for (i = 0; i < IGB_NB_XSTATS; i++)
+ values[i] = *(uint64_t *)(((char *)hw_stats) +
+ rte_igb_stats_strings[i].offset);
+
+ return IGB_NB_XSTATS;
+
+ } else {
+ uint64_t values_copy[IGB_NB_XSTATS];
+
+ eth_igb_xstats_get_by_id(dev, NULL, values_copy,
+ IGB_NB_XSTATS);
+
+ for (i = 0; i < n; i++) {
+ if (ids[i] >= IGB_NB_XSTATS) {
+ PMD_INIT_LOG(ERR, "id value isn't valid");
+ return -1;
+ }
+ values[i] = values_copy[ids[i]];
+ }
+ return n;
+ }
+}
+
static void
igbvf_read_stats_registers(struct e1000_hw *hw, struct e1000_vf_stats *hw_stats)
{
--
2.7.4
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