Previously, the FDIR programming time is +11ms on i40e.
This patch will result in an average programming time of
22usec with a max of 60usec .
Signed-off-by: Michael Lilja <m...@napatech.com>
---
v3:
* Code style fix
---
drivers/net/i40e/i40e_fdir.c | 21 +++++++++++++--------
1 file changed, 13 insertions(+), 8 deletions(-)
diff --git a/drivers/net/i40e/i40e_fdir.c b/drivers/net/i40e/i40e_fdir.c
index 28cc554f5..2162443f5 100644
--- a/drivers/net/i40e/i40e_fdir.c
+++ b/drivers/net/i40e/i40e_fdir.c
@@ -1296,23 +1296,28 @@ i40e_fdir_filter_programming(struct i40e_pf *pf,
rte_wmb();
I40E_PCI_REG_WRITE(txq->qtx_tail, txq->tx_tail);
- for (i = 0; i < I40E_FDIR_WAIT_COUNT; i++) {
- rte_delay_us(I40E_FDIR_WAIT_INTERVAL_US);
+ for (i = 0; i < (I40E_FDIR_WAIT_COUNT * I40E_FDIR_WAIT_INTERVAL_US);
i++) {
if ((txdp->cmd_type_offset_bsz &
- rte_cpu_to_le_64(I40E_TXD_QW1_DTYPE_MASK)) ==
- rte_cpu_to_le_64(I40E_TX_DESC_DTYPE_DESC_DONE))
+ rte_cpu_to_le_64(I40E_TXD_QW1_DTYPE_MASK)) ==
+ rte_cpu_to_le_64(I40E_TX_DESC_DTYPE_DESC_DONE))
break;
+ rte_delay_us(1);
}
- if (i >= I40E_FDIR_WAIT_COUNT) {
+ if (i >= (I40E_FDIR_WAIT_COUNT * I40E_FDIR_WAIT_INTERVAL_US)) {
PMD_DRV_LOG(ERR, "Failed to program FDIR filter:"
- " time out to get DD on tx queue.");
+ " time out to get DD on tx queue.");
return -ETIMEDOUT;
}
/* totally delay 10 ms to check programming status*/
- rte_delay_us((I40E_FDIR_WAIT_COUNT - i) * I40E_FDIR_WAIT_INTERVAL_US);
+ for (i = 0; i < (I40E_FDIR_WAIT_COUNT * I40E_FDIR_WAIT_INTERVAL_US);
i++) {
+ if (i40e_check_fdir_programming_status(rxq) >= 0) {
+ break;
+ }
+ rte_delay_us(1);
+ }
if (i40e_check_fdir_programming_status(rxq) < 0) {
PMD_DRV_LOG(ERR, "Failed to program FDIR filter:"
- " programming status reported.");
+ " programming status reported.");
return -ENOSYS;
}
--
2.12.2
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