+/*
+ * i40e_config_switch_comp_tc - Configure VEB tc setting for given TC map
+ * @veb: VEB to be configured
+ * @tc_map: enabled TC bitmap
+ *
+ * Returns 0 on success, negative value on failure
+ */
+static enum i40e_status_code
+i40e_config_switch_comp_tc(struct i40e_veb *veb, uint8_t tc_map)
+{
+ struct i40e_aqc_configure_switching_comp_bw_config_data veb_bw;
+ struct i40e_aqc_query_switching_comp_bw_config_resp bw_query;
+ struct i40e_aqc_query_switching_comp_ets_config_resp ets_query;
+ struct i40e_hw *hw = I40E_VSI_TO_HW(veb->associate_vsi);
+ enum i40e_status_code ret = I40E_SUCCESS;
+ int i;
+ uint32_t bw_max;
+
+ /* Check if enabled_tc is same as existing or new TCs */
+ if (veb->enabled_tc == tc_map)
+ return ret;
+
+ /* configure tc bandwidth */
+ memset(&veb_bw, 0, sizeof(veb_bw));
+ veb_bw.tc_valid_bits = tc_map;
+ /* Enable ETS TCs with equal BW Share for now across all VSIs */
+ for (i = 0; i < I40E_MAX_TRAFFIC_CLASS; i++) {
+ if (tc_map & BIT_ULL(i))
+ veb_bw.tc_bw_share_credits[i] = 1;
+ }
+ ret = i40e_aq_config_switch_comp_bw_config(hw, veb->seid,
+ &veb_bw, NULL);
+ if (ret) {
+ PMD_INIT_LOG(ERR, "AQ command Config switch_comp BW allocation"
+ " per TC failed = %d",
+ hw->aq.asq_last_status);
+ return ret;
+ }
+
+ memset(&ets_query, 0, sizeof(ets_query));
+ ret = i40e_aq_query_switch_comp_ets_config(hw, veb->seid,
+ &ets_query, NULL);
+ if (ret != I40E_SUCCESS) {
+ PMD_DRV_LOG(ERR, "Failed to get switch_comp ETS"
+ " configuration %u", hw->aq.asq_last_status);
+ return ret;
+ }
+ memset(&bw_query, 0, sizeof(bw_query));
+ ret = i40e_aq_query_switch_comp_bw_config(hw, veb->seid,
+ &bw_query, NULL);
+ if (ret != I40E_SUCCESS) {
+ PMD_DRV_LOG(ERR, "Failed to get switch_comp bandwidth"
+ " configuration %u", hw->aq.asq_last_status);
+ return ret;
+ }
+
+ /* store and print out BW info */
+ veb->bw_info.bw_limit = rte_le_to_cpu_16(ets_query.port_bw_limit);
+ veb->bw_info.bw_max = ets_query.tc_bw_max;
+ PMD_DRV_LOG(DEBUG, "switch_comp bw limit:%u", veb->bw_info.bw_limit);
+ PMD_DRV_LOG(DEBUG, "switch_comp max_bw:%u", veb->bw_info.bw_max);
+ bw_max = rte_le_to_cpu_16(bw_query.tc_bw_max[0]) |
+ (rte_le_to_cpu_16(bw_query.tc_bw_max[1]) <<
+ I40E_16_BIT_WIDTH);
+ for (i = 0; i < I40E_MAX_TRAFFIC_CLASS; i++) {
+ veb->bw_info.bw_ets_share_credits[i] =
+ bw_query.tc_bw_share_credits[i];
+ veb->bw_info.bw_ets_credits[i] =
+ rte_le_to_cpu_16(bw_query.tc_bw_limits[i]);
+ /* 4 bits per TC, 4th bit is reserved */
+ veb->bw_info.bw_ets_max[i] =
+ (uint8_t)((bw_max >> (i * I40E_4_BIT_WIDTH)) &
+ RTE_LEN2MASK(3, uint8_t));
+ PMD_DRV_LOG(DEBUG, "\tVEB TC%u:share credits %u", i,
+ veb->bw_info.bw_ets_share_credits[i]);
+ PMD_DRV_LOG(DEBUG, "\tVEB TC%u:credits %u", i,
+ veb->bw_info.bw_ets_credits[i]);
+ PMD_DRV_LOG(DEBUG, "\tVEB TC%u: max credits: %u", i,
+ veb->bw_info.bw_ets_max[i]);
+ }
+
+ veb->enabled_tc = tc_map;
+
+ return ret;
+}
+
+