diff options
Diffstat (limited to 'src/dpdk/drivers/net/i40e/i40e_rxtx.c')
| -rw-r--r-- | src/dpdk/drivers/net/i40e/i40e_rxtx.c | 40 |
1 files changed, 38 insertions, 2 deletions
diff --git a/src/dpdk/drivers/net/i40e/i40e_rxtx.c b/src/dpdk/drivers/net/i40e/i40e_rxtx.c index 608685fa..8aa55eef 100644 --- a/src/dpdk/drivers/net/i40e/i40e_rxtx.c +++ b/src/dpdk/drivers/net/i40e/i40e_rxtx.c @@ -1708,12 +1708,21 @@ i40e_dev_rx_queue_setup(struct rte_eth_dev *dev, uint16_t base, bsf, tc_mapping; int use_def_burst_func = 1; +#define TREX_PATCH_LOW_LATENCY +#ifdef TREX_PATCH_LOW_LATENCY + int is_vf = 0; +#endif + if (hw->mac.type == I40E_MAC_VF || hw->mac.type == I40E_MAC_X722_VF) { struct i40e_vf *vf = I40EVF_DEV_PRIVATE_TO_VF(dev->data->dev_private); vsi = &vf->vsi; - } else +#ifdef TREX_PATCH_LOW_LATENCY + is_vf = 1; +#endif + } else { vsi = i40e_pf_get_vsi_by_qindex(pf, queue_idx); + } if (vsi == NULL) { PMD_DRV_LOG(ERR, "VSI not available or queue " @@ -1829,6 +1838,12 @@ i40e_dev_rx_queue_setup(struct rte_eth_dev *dev, ad->rx_bulk_alloc_allowed = false; } +#ifdef TREX_PATCH_LOW_LATENCY + if (! is_vf) + rxq->dcb_tc =0; + else // The entire for below is in the else +#endif + for (i = 0; i < I40E_MAX_TRAFFIC_CLASS; i++) { if (!(vsi->enabled_tc & (1 << i))) continue; @@ -1936,12 +1951,24 @@ i40e_dev_tx_queue_setup(struct rte_eth_dev *dev, uint16_t tx_rs_thresh, tx_free_thresh; uint16_t i, base, bsf, tc_mapping; +#ifdef TREX_PATCH_LOW_LATENCY + u8 low_latency = 0; + int is_vf = 1; +#endif + if (hw->mac.type == I40E_MAC_VF || hw->mac.type == I40E_MAC_X722_VF) { struct i40e_vf *vf = I40EVF_DEV_PRIVATE_TO_VF(dev->data->dev_private); vsi = &vf->vsi; - } else + } else { vsi = i40e_pf_get_vsi_by_qindex(pf, queue_idx); +#ifdef TREX_PATCH_LOW_LATENCY + if (queue_idx == pf->dev_data->nb_tx_queues-1) { + low_latency = 1; + } + is_vf = 0; +#endif + } if (vsi == NULL) { PMD_DRV_LOG(ERR, "VSI is NULL, or queue index (%u) " @@ -2096,6 +2123,15 @@ i40e_dev_tx_queue_setup(struct rte_eth_dev *dev, /* Use a simple TX queue without offloads or multi segs if possible */ i40e_set_tx_function_flag(dev, txq); +#ifdef TREX_PATCH_LOW_LATENCY + if (! is_vf) { + if (low_latency) { + txq->dcb_tc=1; + }else{ + txq->dcb_tc=0; + } + } else // The entire for below is in the else +#endif for (i = 0; i < I40E_MAX_TRAFFIC_CLASS; i++) { if (!(vsi->enabled_tc & (1 << i))) continue; |