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path: root/drivers/net/enic/enic_ethdev.c
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Diffstat (limited to 'drivers/net/enic/enic_ethdev.c')
-rw-r--r--drivers/net/enic/enic_ethdev.c67
1 files changed, 67 insertions, 0 deletions
diff --git a/drivers/net/enic/enic_ethdev.c b/drivers/net/enic/enic_ethdev.c
index 98391b00..46ea2cf4 100644
--- a/drivers/net/enic/enic_ethdev.c
+++ b/drivers/net/enic/enic_ethdev.c
@@ -40,6 +40,7 @@
#include <rte_bus_pci.h>
#include <rte_ethdev.h>
#include <rte_ethdev_pci.h>
+#include <rte_kvargs.h>
#include <rte_string_fns.h>
#include "vnic_intr.h"
@@ -66,6 +67,8 @@ static const struct rte_pci_id pci_id_enic_map[] = {
{.vendor_id = 0, /* sentinel */},
};
+#define ENIC_DEVARG_IG_VLAN_REWRITE "ig-vlan-rewrite"
+
static int
enicpmd_fdir_ctrl_func(struct rte_eth_dev *eth_dev,
enum rte_filter_op filter_op, void *arg)
@@ -644,6 +647,64 @@ static const struct eth_dev_ops enicpmd_eth_dev_ops = {
.filter_ctrl = enicpmd_dev_filter_ctrl,
};
+static int enic_parse_ig_vlan_rewrite(__rte_unused const char *key,
+ const char *value,
+ void *opaque)
+{
+ struct enic *enic;
+
+ enic = (struct enic *)opaque;
+ if (strcmp(value, "trunk") == 0) {
+ /* Trunk mode: always tag */
+ enic->ig_vlan_rewrite_mode = IG_VLAN_REWRITE_MODE_DEFAULT_TRUNK;
+ } else if (strcmp(value, "untag") == 0) {
+ /* Untag default VLAN mode: untag if VLAN = default VLAN */
+ enic->ig_vlan_rewrite_mode =
+ IG_VLAN_REWRITE_MODE_UNTAG_DEFAULT_VLAN;
+ } else if (strcmp(value, "priority") == 0) {
+ /*
+ * Priority-tag default VLAN mode: priority tag (VLAN header
+ * with ID=0) if VLAN = default
+ */
+ enic->ig_vlan_rewrite_mode =
+ IG_VLAN_REWRITE_MODE_PRIORITY_TAG_DEFAULT_VLAN;
+ } else if (strcmp(value, "pass") == 0) {
+ /* Pass through mode: do not touch tags */
+ enic->ig_vlan_rewrite_mode = IG_VLAN_REWRITE_MODE_PASS_THRU;
+ } else {
+ dev_err(enic, "Invalid value for " ENIC_DEVARG_IG_VLAN_REWRITE
+ ": expected=trunk|untag|priority|pass given=%s\n",
+ value);
+ return -EINVAL;
+ }
+ return 0;
+}
+
+static int enic_check_devargs(struct rte_eth_dev *dev)
+{
+ static const char *const valid_keys[] = {
+ ENIC_DEVARG_IG_VLAN_REWRITE,
+ NULL};
+ struct enic *enic = pmd_priv(dev);
+ struct rte_kvargs *kvlist;
+
+ ENICPMD_FUNC_TRACE();
+
+ enic->ig_vlan_rewrite_mode = IG_VLAN_REWRITE_MODE_PASS_THRU;
+ if (!dev->device->devargs)
+ return 0;
+ kvlist = rte_kvargs_parse(dev->device->devargs->args, valid_keys);
+ if (!kvlist)
+ return -EINVAL;
+ if (rte_kvargs_process(kvlist, ENIC_DEVARG_IG_VLAN_REWRITE,
+ enic_parse_ig_vlan_rewrite, enic) < 0) {
+ rte_kvargs_free(kvlist);
+ return -EINVAL;
+ }
+ rte_kvargs_free(kvlist);
+ return 0;
+}
+
struct enic *enicpmd_list_head = NULL;
/* Initialize the driver
* It returns 0 on success.
@@ -653,6 +714,7 @@ static int eth_enicpmd_dev_init(struct rte_eth_dev *eth_dev)
struct rte_pci_device *pdev;
struct rte_pci_addr *addr;
struct enic *enic = pmd_priv(eth_dev);
+ int err;
ENICPMD_FUNC_TRACE();
@@ -670,6 +732,9 @@ static int eth_enicpmd_dev_init(struct rte_eth_dev *eth_dev)
snprintf(enic->bdf_name, ENICPMD_BDF_LENGTH, "%04x:%02x:%02x.%x",
addr->domain, addr->bus, addr->devid, addr->function);
+ err = enic_check_devargs(eth_dev);
+ if (err)
+ return err;
return enic_probe(enic);
}
@@ -695,3 +760,5 @@ static struct rte_pci_driver rte_enic_pmd = {
RTE_PMD_REGISTER_PCI(net_enic, rte_enic_pmd);
RTE_PMD_REGISTER_PCI_TABLE(net_enic, pci_id_enic_map);
RTE_PMD_REGISTER_KMOD_DEP(net_enic, "* igb_uio | uio_pci_generic | vfio-pci");
+RTE_PMD_REGISTER_PARAM_STRING(net_enic,
+ ENIC_DEVARG_IG_VLAN_REWRITE "=trunk|untag|priority|pass");