Support enabling/disabling TX loopback from PF.
User can call the API on PF to enable/disable TX loopback
for all the PF and VFs.
Signed-off-by: Wenzhuo Lu <wenzhuo...@intel.com>
---
drivers/net/i40e/i40e_ethdev.c | 222 ++++++++++++++++++++++++++++++
drivers/net/i40e/rte_pmd_i40e.h | 16 +++
drivers/net/i40e/rte_pmd_i40e_version.map | 1 +
3 files changed, 239 insertions(+)
diff --git a/drivers/net/i40e/i40e_ethdev.c b/drivers/net/i40e/i40e_ethdev.c
index bcc59b2..a5d6d05 100644
--- a/drivers/net/i40e/i40e_ethdev.c
+++ b/drivers/net/i40e/i40e_ethdev.c
@@ -9898,3 +9898,225 @@ static void i40e_set_default_mac_addr(struct
rte_eth_dev *dev,
return ret;
}
+
+static int
+i40e_vsi_rm_mac_filter(struct i40e_vsi *vsi)
+{
+ struct i40e_mac_filter *f;
+ struct i40e_macvlan_filter *mv_f;
+ int i, vlan_num;
+ enum rte_mac_filter_type filter_type;
+ int ret = I40E_SUCCESS;
+
+ /* remove all the MACs */
+ TAILQ_FOREACH(f, &vsi->mac_list, next) {
+ vlan_num = vsi->vlan_num;
+ filter_type = f->mac_info.filter_type;
+ if (filter_type == RTE_MACVLAN_PERFECT_MATCH ||
+ filter_type == RTE_MACVLAN_HASH_MATCH) {
+ if (vlan_num == 0) {
+ PMD_DRV_LOG(ERR,
+ "VLAN number shouldn't be 0\n");
+ return I40E_ERR_PARAM;
+ }
+ } else if (filter_type == RTE_MAC_PERFECT_MATCH ||
+ filter_type == RTE_MAC_HASH_MATCH)
+ vlan_num = 1;
+
+ mv_f = rte_zmalloc("macvlan_data", vlan_num * sizeof(*mv_f), 0);
+ if (!mv_f) {
+ PMD_DRV_LOG(ERR, "failed to allocate memory");
+ return I40E_ERR_NO_MEMORY;
+ }
+
+ for (i = 0; i < vlan_num; i++) {
+ mv_f[i].filter_type = filter_type;
+ (void)rte_memcpy(&mv_f[i].macaddr,
+ &f->mac_info.mac_addr,
+ ETH_ADDR_LEN);
+ }
+ if (filter_type == RTE_MACVLAN_PERFECT_MATCH ||
+ filter_type == RTE_MACVLAN_HASH_MATCH) {
+ ret = i40e_find_all_vlan_for_mac(vsi, mv_f, vlan_num,
+ &f->mac_info.mac_addr);
+ if (ret != I40E_SUCCESS) {
+ rte_free(mv_f);
+ return ret;
+ }
+ }
+
+ ret = i40e_remove_macvlan_filters(vsi, mv_f, vlan_num);
+ if (ret != I40E_SUCCESS) {
+ rte_free(mv_f);
+ return ret;
+ }
+
+ rte_free(mv_f);
+ ret = I40E_SUCCESS;
+ }
+
+ return ret;
+}
+
+static int
+i40e_vsi_restore_mac_filter(struct i40e_vsi *vsi)
+{
+ struct i40e_mac_filter *f;
+ struct i40e_macvlan_filter *mv_f;
+ int i, vlan_num = 0;
+ int ret = I40E_SUCCESS;
+
+ /* restore all the MACs */
+ TAILQ_FOREACH(f, &vsi->mac_list, next) {
+ if ((f->mac_info.filter_type == RTE_MACVLAN_PERFECT_MATCH) ||
+ (f->mac_info.filter_type == RTE_MACVLAN_HASH_MATCH)) {
+ /**
+ * If vlan_num is 0, that's the first time to add mac,
+ * set mask for vlan_id 0.
+ */
+ if (vsi->vlan_num == 0) {
+ i40e_set_vlan_filter(vsi, 0, 1);
+ vsi->vlan_num = 1;
+ }
+ vlan_num = vsi->vlan_num;
+ } else if ((f->mac_info.filter_type == RTE_MAC_PERFECT_MATCH) ||
+ (f->mac_info.filter_type == RTE_MAC_HASH_MATCH))
+ vlan_num = 1;
+
+ mv_f = rte_zmalloc("macvlan_data", vlan_num * sizeof(*mv_f), 0);
+ if (!mv_f) {
+ PMD_DRV_LOG(ERR, "failed to allocate memory");
+ return I40E_ERR_NO_MEMORY;
+ }
+
+ for (i = 0; i < vlan_num; i++) {
+ mv_f[i].filter_type = f->mac_info.filter_type;
+ (void)rte_memcpy(&mv_f[i].macaddr,
+ &f->mac_info.mac_addr,
+ ETH_ADDR_LEN);
+ }
+
+ if (f->mac_info.filter_type == RTE_MACVLAN_PERFECT_MATCH ||
+ f->mac_info.filter_type == RTE_MACVLAN_HASH_MATCH) {
+ ret = i40e_find_all_vlan_for_mac(vsi, mv_f, vlan_num,
+ &f->mac_info.mac_addr);
+ if (ret != I40E_SUCCESS) {
+ rte_free(mv_f);
+ return ret;
+ }
+ }
+
+ ret = i40e_add_macvlan_filters(vsi, mv_f, vlan_num);
+ if (ret != I40E_SUCCESS) {
+ rte_free(mv_f);
+ return ret;
+ }
+
+ rte_free(mv_f);
+ ret = I40E_SUCCESS;
+ }
+
+ return ret;
+}
+
+static int
+i40e_vsi_set_tx_loopback(struct i40e_vsi *vsi, uint8_t on)
+{
+ struct i40e_vsi_context ctxt;
+ struct i40e_hw *hw;
+ int ret;
+
+ if (!vsi)
+ return -EINVAL;
+
+ hw = I40E_VSI_TO_HW(vsi);
+
+ /* Use the FW API if FW >= v5.0 */
+ if (hw->aq.fw_maj_ver < 5) {
+ PMD_INIT_LOG(ERR, "FW < v5.0, cannot enable loopback");
+ return -ENOTSUP;
+ }
+
+ /* Check if it has been already on or off */
+ if (vsi->info.valid_sections &
+ rte_cpu_to_le_16(I40E_AQ_VSI_PROP_SWITCH_VALID)) {
+ if (on) {
+ if ((vsi->info.switch_id &
+ I40E_AQ_VSI_SW_ID_FLAG_ALLOW_LB) ==
+ I40E_AQ_VSI_SW_ID_FLAG_ALLOW_LB)
+ return 0; /* already on */
+ } else {
+ if ((vsi->info.switch_id &
+ I40E_AQ_VSI_SW_ID_FLAG_ALLOW_LB) == 0)
+ return 0; /* already off */
+ }
+ }
+
+ /* remove all the MACs first */
+ ret = i40e_vsi_rm_mac_filter(vsi);
+ if (ret)
+ return ret;
+
+ vsi->info.valid_sections = cpu_to_le16(I40E_AQ_VSI_PROP_SWITCH_VALID);
+ if (on)
+ vsi->info.switch_id |= I40E_AQ_VSI_SW_ID_FLAG_ALLOW_LB;
+ else
+ vsi->info.switch_id &= ~I40E_AQ_VSI_SW_ID_FLAG_ALLOW_LB;
+
+ memset(&ctxt, 0, sizeof(ctxt));
+ (void)rte_memcpy(&ctxt.info, &vsi->info, sizeof(vsi->info));
+ ctxt.seid = vsi->seid;
+
+ ret = i40e_aq_update_vsi_params(hw, &ctxt, NULL);
+ if (ret != I40E_SUCCESS) {
+ PMD_DRV_LOG(ERR, "Failed to update VSI params");
+ return ret;
+ }
+
+ /* add all the MACs back */
+ ret = i40e_vsi_restore_mac_filter(vsi);
+ if (ret)
+ return ret;
+
+ return ret;
+}
+
+int
+rte_pmd_i40e_set_tx_loopback(uint8_t port, uint8_t on)
+{
+ struct rte_eth_dev *dev;
+ struct i40e_pf *pf;
+ struct i40e_pf_vf *vf;
+ struct i40e_vsi *vsi;
+ uint16_t vf_id;
+ int ret;
+
+ RTE_ETH_VALID_PORTID_OR_ERR_RET(port, -ENODEV);
+
+ dev = &rte_eth_devices[port];
+
+ pf = I40E_DEV_PRIVATE_TO_PF(dev->data->dev_private);
+
+ /* setup PF TX loopback */
+ vsi = pf->main_vsi;
+ ret = i40e_vsi_set_tx_loopback(vsi, on);
+ if (ret)
+ return ret;
+
+ /* setup TX loopback for all the VFs */
+ if (!pf->vfs) {
+ PMD_DRV_LOG(ERR, "Invalid argument.");
+ return -EINVAL;
+ }
+
+ for (vf_id = 0; vf_id < pf->vf_num; vf_id++) {
+ vf = &pf->vfs[vf_id];
+ vsi = vf->vsi;
+
+ ret = i40e_vsi_set_tx_loopback(vsi, on);
+ if (ret)
+ return ret;
+ }
+
+ return ret;
+}
diff --git a/drivers/net/i40e/rte_pmd_i40e.h b/drivers/net/i40e/rte_pmd_i40e.h
index c8736c8..3c65be4 100644
--- a/drivers/net/i40e/rte_pmd_i40e.h
+++ b/drivers/net/i40e/rte_pmd_i40e.h
@@ -114,4 +114,20 @@ int rte_pmd_i40e_set_vf_vlan_anti_spoof(uint8_t port,
uint16_t vf_id,
uint8_t on);
+/**
+ * Enable/Disable TX loopback on all the PF and VFs.
+ *
+ * @param port
+ * The port identifier of the Ethernet device.
+ * @param on
+ * 1 - Enable TX loopback.
+ * 0 - Disable TX loopback.
+ * @return
+ * - (0) if successful.
+ * - (-ENODEV) if *port* invalid.
+ * - (-EINVAL) if bad parameter.
+ */
+int rte_pmd_i40e_set_tx_loopback(uint8_t port,
+ uint8_t on);
+
#endif /* _PMD_I40E_H_ */
diff --git a/drivers/net/i40e/rte_pmd_i40e_version.map
b/drivers/net/i40e/rte_pmd_i40e_version.map
index 028f0ef..51eda65 100644
--- a/drivers/net/i40e/rte_pmd_i40e_version.map
+++ b/drivers/net/i40e/rte_pmd_i40e_version.map
@@ -7,6 +7,7 @@ DPDK_17.02 {
global:
rte_pmd_i40e_ping_vfs;
+ rte_pmd_i40e_set_tx_loopback;
rte_pmd_i40e_set_vf_mac_anti_spoof;
rte_pmd_i40e_set_vf_vlan_anti_spoof;
--
1.9.3
