Add a new API rte_eth_dev_get_ptype_info to query whether/what packet
type can be filled by given pmd rx burst function.
Signed-off-by: Jianfeng Tan <jianfeng.tan at intel.com>
---
lib/librte_ether/rte_ethdev.c | 32 ++++++++++++++++++++++++++++++++
lib/librte_ether/rte_ethdev.h | 23 +++++++++++++++++++++++
2 files changed, 55 insertions(+)
diff --git a/lib/librte_ether/rte_ethdev.c b/lib/librte_ether/rte_ethdev.c
index 1257965..b52555b 100644
--- a/lib/librte_ether/rte_ethdev.c
+++ b/lib/librte_ether/rte_ethdev.c
@@ -1576,6 +1576,38 @@ rte_eth_dev_info_get(uint8_t port_id, struct
rte_eth_dev_info *dev_info)
dev_info->driver_name = dev->data->drv_name;
}
+int
+rte_eth_dev_get_ptype_info(uint8_t port_id, uint32_t ptype_mask,
+ uint32_t **p_ptypes)
+{
+ int i, j, ret;
+ struct rte_eth_dev *dev;
+ const uint32_t *all_ptypes;
+
+ 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->dev_ptype_info_get, -ENOTSUP);
+ all_ptypes = (*dev->dev_ops->dev_ptype_info_get)(dev);
+
+ if (!all_ptypes)
+ return 0;
+
+ for (i = 0, ret = 0; all_ptypes[i] != RTE_PTYPE_UNKNOWN; ++i)
+ if (all_ptypes[i] & ptype_mask)
+ ret++;
+ if (ret == 0)
+ return 0;
+
+ *p_ptypes = (uint32_t *)malloc(sizeof(uint32_t) * ret);
+ if (*p_ptypes == NULL)
+ return -ENOMEM;
+
+ for (i = 0, j = 0; all_ptypes[i] != RTE_PTYPE_UNKNOWN; ++i)
+ if (all_ptypes[i] & ptype_mask)
+ *p_ptypes[j++] = all_ptypes[i];
+ return ret;
+}
+
void
rte_eth_macaddr_get(uint8_t port_id, struct ether_addr *mac_addr)
{
diff --git a/lib/librte_ether/rte_ethdev.h b/lib/librte_ether/rte_ethdev.h
index 16da821..341e2ff 100644
--- a/lib/librte_ether/rte_ethdev.h
+++ b/lib/librte_ether/rte_ethdev.h
@@ -1021,6 +1021,9 @@ typedef void (*eth_dev_infos_get_t)(struct rte_eth_dev
*dev,
struct rte_eth_dev_info *dev_info);
/**< @internal Get specific informations of an Ethernet device. */
+typedef const uint32_t *(*eth_dev_ptype_info_get_t)(struct rte_eth_dev *dev);
+/**< @internal Get ptype info of eth_rx_burst_t. */
+
typedef int (*eth_queue_start_t)(struct rte_eth_dev *dev,
uint16_t queue_id);
/**< @internal Start rx and tx of a queue of an Ethernet device. */
@@ -1347,6 +1350,7 @@ struct eth_dev_ops {
eth_queue_stats_mapping_set_t queue_stats_mapping_set;
/**< Configure per queue stat counter mapping. */
eth_dev_infos_get_t dev_infos_get; /**< Get device info. */
+ eth_dev_ptype_info_get_t dev_ptype_info_get; /** Get ptype info */
mtu_set_t mtu_set; /**< Set MTU. */
vlan_filter_set_t vlan_filter_set; /**< Filter VLAN Setup. */
vlan_tpid_set_t vlan_tpid_set; /**< Outer VLAN TPID
Setup. */
@@ -2268,6 +2272,25 @@ void rte_eth_macaddr_get(uint8_t port_id, struct
ether_addr *mac_addr);
void rte_eth_dev_info_get(uint8_t port_id, struct rte_eth_dev_info *dev_info);
/**
+ * Retrieve the packet type information of an Ethernet device.
+ *
+ * @param port_id
+ * The port identifier of the Ethernet device.
+ * @param ptype_mask
+ * A hint of what kind of packet type which the caller is interested in.
+ * @param p_ptypes
+ * A pointer to store address of adequent packet types array. Caller to free.
+ * @return
+ * - (>0) Number of ptypes supported. Need caller to free the array.
+ * - (0 or -ENOTSUP) if PMD does not fill the specified ptype.
+ * - (-ENOMEM) if fail to malloc required memory to store ptypes.
+ * - (-ENODEV) if *port_id* invalid.
+ */
+extern int rte_eth_dev_get_ptype_info(uint8_t port_id,
+ uint32_t ptype_mask,
+ uint32_t **p_ptypes);
+
+/**
* Retrieve the MTU of an Ethernet device.
*
* @param port_id
--
2.1.4
