ethdev: support representor id as iterator filter

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

diff --git a/lib/librte_ethdev/rte_class_eth.c b/lib/librte_ethdev/rte_class_eth.c
index 58fed69..fca7fe4 100644 (file)
--- a/lib/librte_ethdev/rte_class_eth.c
+++ b/lib/librte_ethdev/rte_class_eth.c
@@ -12,13 +12,16 @@
 
 #include "rte_ethdev.h"
 #include "rte_ethdev_core.h"
+#include "rte_ethdev_driver.h"
 #include "ethdev_private.h"
 
 enum eth_params {
+       RTE_ETH_PARAM_REPRESENTOR,
        RTE_ETH_PARAM_MAX,
 };
 
 static const char * const eth_params_keys[] = {
+       [RTE_ETH_PARAM_REPRESENTOR] = "representor",
        [RTE_ETH_PARAM_MAX] = NULL,
 };
 
@@ -33,10 +36,44 @@ struct eth_dev_match_arg {
                .kvlist = (k), \
        })
 
+static int
+eth_representor_cmp(const char *key __rte_unused,
+               const char *value, void *opaque)
+{
+       int ret;
+       char *values;
+       const struct rte_eth_dev_data *data = opaque;
+       struct rte_eth_devargs representors;
+       uint16_t index;
+
+       if ((data->dev_flags & RTE_ETH_DEV_REPRESENTOR) == 0)
+               return -1; /* not a representor port */
+
+       /* Parse devargs representor values. */
+       values = strdup(value);
+       if (values == NULL)
+               return -1;
+       memset(&representors, 0, sizeof(representors));
+       ret = rte_eth_devargs_parse_list(values,
+                       rte_eth_devargs_parse_representor_ports,
+                       &representors);
+       free(values);
+       if (ret != 0)
+               return -1; /* invalid devargs value */
+
+       /* Return 0 if representor id is matching one of the values. */
+       for (index = 0; index < representors.nb_representor_ports; index++)
+               if (data->representor_id ==
+                               representors.representor_ports[index])
+                       return 0;
+       return -1; /* no match */
+}
+
 static int
 eth_dev_match(const struct rte_eth_dev *edev,
              const void *_arg)
 {
+       int ret;
        const struct eth_dev_match_arg *arg = _arg;
        const struct rte_kvargs *kvlist = arg->kvlist;
 
@@ -47,6 +84,13 @@ eth_dev_match(const struct rte_eth_dev *edev,
        if (kvlist == NULL)
                /* Empty string matches everything. */
                return 0;
+
+       ret = rte_kvargs_process(kvlist,
+                       eth_params_keys[RTE_ETH_PARAM_REPRESENTOR],
+                       eth_representor_cmp, edev->data);
+       if (ret != 0)
+               return -1;
+
        return 0;
 }