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>
---
v7:
* Code style changes
v6:
* Fixed code style issues
v5:
* Reinitialization of "i" inconsistent with original intent
v4:
* Code style fix
v3:
* Replaced commit message
v2:
* Code style fix
v1:
* Initial version
---
---
drivers/net/i40e/i40e_fdir.c | 22 +++++++++++-----------
1 file changed, 11 insertions(+), 11 deletions(-)
diff --git a/drivers/net/i40e/i40e_fdir.c b/drivers/net/i40e/i40e_fdir.c
index 28cc554f5..1192d5831 100644
--- a/drivers/net/i40e/i40e_fdir.c
+++ b/drivers/net/i40e/i40e_fdir.c
@@ -76,6 +76,7 @@
/* Wait count and interval for fdir filter programming */
#define I40E_FDIR_WAIT_COUNT 10
#define I40E_FDIR_WAIT_INTERVAL_US 1000
+#define I40E_FDIR_MAX_WAIT (I40E_FDIR_WAIT_COUNT * I40E_FDIR_WAIT_INTERVAL_US)
/* Wait count and interval for fdir filter flush */
#define I40E_FDIR_FLUSH_RETRY 50
@@ -1295,28 +1296,27 @@ i40e_fdir_filter_programming(struct i40e_pf *pf,
/* Update the tx tail register */
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_MAX_WAIT; 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))
break;
+ rte_delay_us(1);
}
- if (i >= I40E_FDIR_WAIT_COUNT) {
+ if (i >= I40E_FDIR_MAX_WAIT) {
PMD_DRV_LOG(ERR, "Failed to program FDIR filter:"
" 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);
- if (i40e_check_fdir_programming_status(rxq) < 0) {
- PMD_DRV_LOG(ERR, "Failed to program FDIR filter:"
- " programming status reported.");
- return -ENOSYS;
+ for (; i < I40E_FDIR_MAX_WAIT; i++) {
+ if (i40e_check_fdir_programming_status(rxq) >= 0)
+ return 0;
+ rte_delay_us(1);
}
-
- return 0;
+ PMD_DRV_LOG(ERR, "Failed to program FDIR filter:"
+ " programming status reported.");
+ return -ETIMEDOUT;
}
/*
--
2.12.2
