diff options
Diffstat (limited to 'src/dpdk/drivers/net/i40e/i40e_rxtx.c')
| -rw-r--r-- | src/dpdk/drivers/net/i40e/i40e_rxtx.c | 37 |
1 files changed, 36 insertions, 1 deletions
diff --git a/src/dpdk/drivers/net/i40e/i40e_rxtx.c b/src/dpdk/drivers/net/i40e/i40e_rxtx.c index d3cfb98f..a6488898 100644 --- a/src/dpdk/drivers/net/i40e/i40e_rxtx.c +++ b/src/dpdk/drivers/net/i40e/i40e_rxtx.c @@ -1930,6 +1930,35 @@ i40e_xmit_pkts_simple(void *tx_queue, return nb_tx; } +// TREX_PATCH +// Based on i40e_pf_get_vsi_by_qindex. Return low latency VSI one queue. +#define LOW_LATENCY_WORKAROUND +#ifdef LOW_LATENCY_WORKAROUND +static struct i40e_vsi* +i40e_pf_tx_get_vsi_by_qindex(struct i40e_pf *pf, uint16_t queue_idx) +{ + // For last queue index, return low latency VSI + if (queue_idx == pf->dev_data->nb_tx_queues-1) { + return pf->ll_vsi; + } + + /* the queue in MAIN VSI range */ + if (queue_idx < pf->dev_data->nb_tx_queues) + return pf->main_vsi; + + + queue_idx -= pf->main_vsi->nb_qps; + + /* queue_idx is greater than VMDQ VSIs range */ + if (queue_idx > pf->nb_cfg_vmdq_vsi * pf->vmdq_nb_qps - 1) { + PMD_INIT_LOG(ERR, "queue_idx out of range. VMDQ configured?"); + return NULL; + } + + return pf->vmdq[queue_idx / pf->vmdq_nb_qps].vsi; +} +#endif + /* * Find the VSI the queue belongs to. 'queue_idx' is the queue index * application used, which assume having sequential ones. But from driver's @@ -2165,8 +2194,14 @@ i40e_dev_rx_queue_setup(struct rte_eth_dev *dev, struct i40e_vf *vf = I40EVF_DEV_PRIVATE_TO_VF(dev->data->dev_private); vsi = &vf->vsi; - } else + } else { + // TREX_PATCH +#ifdef LOW_LATENCY_WORKAROUND + vsi = i40e_pf_tx_get_vsi_by_qindex(pf, queue_idx); +#else vsi = i40e_pf_get_vsi_by_qindex(pf, queue_idx); +#endif + } if (vsi == NULL) { PMD_DRV_LOG(ERR, "VSI not available or queue " |