Imported Upstream version 16.07-rc2

Change-Id: Ie9e8ec528a2a0dace085c5e44aa7fa3b489d4ba0
Signed-off-by: Ricardo Salveti <ricardo.salveti@linaro.org>

4 files changed, 25 insertions, 46 deletions

diff --git a/lib/librte_ether/rte_dev_info.h b/lib/librte_ether/rte_dev_info.h
index 291bd4d7..574683d3 100644
--- a/lib/librte_ether/rte_dev_info.h
+++ b/lib/librte_ether/rte_dev_info.h
@@ -41,6 +41,7 @@ struct rte_dev_reg_info {
 	void *data; /**< Buffer for return registers */
 	uint32_t offset; /**< Start register table location for access */
 	uint32_t length; /**< Number of registers to fetch */
+	uint32_t width; /**< Size of device register */
 	uint32_t version; /**< Device version */
 };
 
diff --git a/lib/librte_ether/rte_ethdev.c b/lib/librte_ether/rte_ethdev.c
index eac260f1..0a6e3f18 100644
--- a/lib/librte_ether/rte_ethdev.c
+++ b/lib/librte_ether/rte_ethdev.c
@@ -1536,6 +1536,7 @@ rte_eth_xstats_get_names(uint8_t port_id,
 	struct rte_eth_dev *dev;
 	int cnt_used_entries;
 	int cnt_expected_entries;
+	int cnt_driver_entries;
 	uint32_t idx, id_queue;
 
 	cnt_expected_entries = get_xstats_count(port_id);
@@ -1545,16 +1546,7 @@ rte_eth_xstats_get_names(uint8_t port_id,
 
 	/* port_id checked in get_xstats_count() */
 	dev = &rte_eth_devices[port_id];
-	if (dev->dev_ops->xstats_get_names != NULL) {
-		cnt_used_entries = (*dev->dev_ops->xstats_get_names)(
-			dev, xstats_names, size);
-		if (cnt_used_entries < 0)
-			return cnt_used_entries;
-	} else
-		/* Driver itself does not support extended stats, but
-		 * still have basic stats.
-		 */
-		cnt_used_entries = 0;
+	cnt_used_entries = 0;
 
 	for (idx = 0; idx < RTE_NB_STATS; idx++) {
 		snprintf(xstats_names[cnt_used_entries].name,
@@ -1581,6 +1573,20 @@ rte_eth_xstats_get_names(uint8_t port_id,
 			cnt_used_entries++;
 		}
 	}
+
+	if (dev->dev_ops->xstats_get_names != NULL) {
+		/* If there are any driver-specific xstats, append them
+		 * to end of list.
+		 */
+		cnt_driver_entries = (*dev->dev_ops->xstats_get_names)(
+			dev,
+			xstats_names + cnt_used_entries,
+			size - cnt_used_entries);
+		if (cnt_driver_entries < 0)
+			return cnt_driver_entries;
+		cnt_used_entries += cnt_driver_entries;
+	}
+
 	return cnt_used_entries;
 }
 
@@ -1628,7 +1634,6 @@ rte_eth_xstats_get(uint8_t port_id, struct rte_eth_xstat *xstats,
 		stats_ptr = RTE_PTR_ADD(&eth_stats,
 					rte_stats_strings[i].offset);
 		val = *stats_ptr;
-		xstats[count].id = count + xcount;
 		xstats[count++].value = val;
 	}
 
@@ -1639,7 +1644,6 @@ rte_eth_xstats_get(uint8_t port_id, struct rte_eth_xstat *xstats,
 					rte_rxq_stats_strings[i].offset +
 					q * sizeof(uint64_t));
 			val = *stats_ptr;
-			xstats[count].id = count + xcount;
 			xstats[count++].value = val;
 		}
 	}
@@ -1651,11 +1655,13 @@ rte_eth_xstats_get(uint8_t port_id, struct rte_eth_xstat *xstats,
 					rte_txq_stats_strings[i].offset +
 					q * sizeof(uint64_t));
 			val = *stats_ptr;
-			xstats[count].id = count + xcount;
 			xstats[count++].value = val;
 		}
 	}
 
+	for (i = 0; i < count + xcount; i++)
+		xstats[i].id = i;
+
 	return count + xcount;
 }
 
@@ -3305,18 +3311,6 @@ rte_eth_timesync_write_time(uint8_t port_id, const struct timespec *timestamp)
 }
 
 int
-rte_eth_dev_get_reg_length(uint8_t port_id)
-{
-	struct rte_eth_dev *dev;
-
-	RTE_ETH_VALID_PORTID_OR_ERR_RET(port_id, -ENODEV);
-
-	dev = &rte_eth_devices[port_id];
-	RTE_FUNC_PTR_OR_ERR_RET(*dev->dev_ops->get_reg_length, -ENOTSUP);
-	return (*dev->dev_ops->get_reg_length)(dev);
-}
-
-int
 rte_eth_dev_get_reg_info(uint8_t port_id, struct rte_dev_reg_info *info)
 {
 	struct rte_eth_dev *dev;
diff --git a/lib/librte_ether/rte_ethdev.h b/lib/librte_ether/rte_ethdev.h
index 0f173231..4dac364a 100644
--- a/lib/librte_ether/rte_ethdev.h
+++ b/lib/librte_ether/rte_ethdev.h
@@ -1321,9 +1321,6 @@ typedef int (*eth_timesync_write_time)(struct rte_eth_dev *dev,
 				       const struct timespec *timestamp);
 /**< @internal Function used to get time from the device clock */
 
-typedef int (*eth_get_reg_length_t)(struct rte_eth_dev *dev);
-/**< @internal Retrieve device register count  */
-
 typedef int (*eth_get_reg_t)(struct rte_eth_dev *dev,
 				struct rte_dev_reg_info *info);
 /**< @internal Retrieve registers  */
@@ -1487,8 +1484,6 @@ struct eth_dev_ops {
 	/** Query redirection table. */
 	reta_query_t reta_query;
 
-	eth_get_reg_length_t get_reg_length;
-	/**< Get # of registers */
 	eth_get_reg_t get_reg;
 	/**< Get registers */
 	eth_get_eeprom_length_t get_eeprom_length;
@@ -4061,25 +4056,15 @@ int rte_eth_tx_queue_info_get(uint8_t port_id, uint16_t queue_id,
 	struct rte_eth_txq_info *qinfo);
 
 /**
- * Retrieve number of available registers for access
- *
- * @param port_id
- *   The port identifier of the Ethernet device.
- * @return
- *   - (>=0) number of registers if successful.
- *   - (-ENOTSUP) if hardware doesn't support.
- *   - (-ENODEV) if *port_id* invalid.
- *   - others depends on the specific operations implementation.
- */
-int rte_eth_dev_get_reg_length(uint8_t port_id);
-
-/**
- * Retrieve device registers and register attributes
+ * Retrieve device registers and register attributes (number of registers and
+ * register size)
  *
  * @param port_id
  *   The port identifier of the Ethernet device.
  * @param info
- *   The template includes buffer for register data and attribute to be filled.
+ *   Pointer to rte_dev_reg_info structure to fill in. If info->data is
+ *   NULL the function fills in the width and length fields. If non-NULL
+ *   the registers are put into the buffer pointed at by the data field.
  * @return
  *   - (0) if successful.
  *   - (-ENOTSUP) if hardware doesn't support.
diff --git a/lib/librte_ether/rte_ether_version.map b/lib/librte_ether/rte_ether_version.map
index e1ccebe0..45ddf44c 100644
--- a/lib/librte_ether/rte_ether_version.map
+++ b/lib/librte_ether/rte_ether_version.map
@@ -36,7 +36,6 @@ DPDK_2.2 {
 	rte_eth_dev_get_eeprom_length;
 	rte_eth_dev_get_mtu;
 	rte_eth_dev_get_reg_info;
-	rte_eth_dev_get_reg_length;
 	rte_eth_dev_get_vlan_offload;
 	rte_eth_devices;
 	rte_eth_dev_info_get;