ethdev: add packet type range function

[dpdk.git] / lib / librte_ethdev / rte_ethdev.c

diff --git a/lib/librte_ethdev/rte_ethdev.c b/lib/librte_ethdev/rte_ethdev.c
index 652c369..d5c4865 100644 (file)
--- a/lib/librte_ethdev/rte_ethdev.c
+++ b/lib/librte_ethdev/rte_ethdev.c
@@ -2879,6 +2879,92 @@ rte_eth_dev_get_supported_ptypes(uint16_t port_id, uint32_t ptype_mask,
        return j;
 }
 
+int
+rte_eth_dev_set_ptypes(uint16_t port_id, uint32_t ptype_mask,
+                                uint32_t *set_ptypes, unsigned int num)
+{
+       const uint32_t valid_ptype_masks[] = {
+               RTE_PTYPE_L2_MASK,
+               RTE_PTYPE_L3_MASK,
+               RTE_PTYPE_L4_MASK,
+               RTE_PTYPE_TUNNEL_MASK,
+               RTE_PTYPE_INNER_L2_MASK,
+               RTE_PTYPE_INNER_L3_MASK,
+               RTE_PTYPE_INNER_L4_MASK,
+       };
+       const uint32_t *all_ptypes;
+       struct rte_eth_dev *dev;
+       uint32_t unused_mask;
+       unsigned int i, j;
+       int ret;
+
+       RTE_ETH_VALID_PORTID_OR_ERR_RET(port_id, -ENODEV);
+       dev = &rte_eth_devices[port_id];
+
+       if (num > 0 && set_ptypes == NULL)
+               return -EINVAL;
+
+       if (*dev->dev_ops->dev_supported_ptypes_get == NULL ||
+                       *dev->dev_ops->dev_ptypes_set == NULL) {
+               ret = 0;
+               goto ptype_unknown;
+       }
+
+       if (ptype_mask == 0) {
+               ret = (*dev->dev_ops->dev_ptypes_set)(dev,
+                               ptype_mask);
+               goto ptype_unknown;
+       }
+
+       unused_mask = ptype_mask;
+       for (i = 0; i < RTE_DIM(valid_ptype_masks); i++) {
+               uint32_t mask = ptype_mask & valid_ptype_masks[i];
+               if (mask && mask != valid_ptype_masks[i]) {
+                       ret = -EINVAL;
+                       goto ptype_unknown;
+               }
+               unused_mask &= ~valid_ptype_masks[i];
+       }
+
+       if (unused_mask) {
+               ret = -EINVAL;
+               goto ptype_unknown;
+       }
+
+       all_ptypes = (*dev->dev_ops->dev_supported_ptypes_get)(dev);
+       if (all_ptypes == NULL) {
+               ret = 0;
+               goto ptype_unknown;
+       }
+
+       /*
+        * Accommodate as many set_ptypes as possible. If the supplied
+        * set_ptypes array is insufficient fill it partially.
+        */
+       for (i = 0, j = 0; set_ptypes != NULL &&
+                               (all_ptypes[i] != RTE_PTYPE_UNKNOWN); ++i) {
+               if (ptype_mask & all_ptypes[i]) {
+                       if (j < num - 1) {
+                               set_ptypes[j] = all_ptypes[i];
+                               j++;
+                               continue;
+                       }
+                       break;
+               }
+       }
+
+       if (set_ptypes != NULL && j < num)
+               set_ptypes[j] = RTE_PTYPE_UNKNOWN;
+
+       return (*dev->dev_ops->dev_ptypes_set)(dev, ptype_mask);
+
+ptype_unknown:
+       if (num > 0)
+               set_ptypes[0] = RTE_PTYPE_UNKNOWN;
+
+       return ret;
+}
+
 int
 rte_eth_macaddr_get(uint16_t port_id, struct rte_ether_addr *mac_addr)
 {
@@ -2891,7 +2977,6 @@ rte_eth_macaddr_get(uint16_t port_id, struct rte_ether_addr *mac_addr)
        return 0;
 }
 
-
 int
 rte_eth_dev_get_mtu(uint16_t port_id, uint16_t *mtu)
 {