From: Michael Lilja <ml@napatech.com>
To: <dev@dpdk.org>
Cc: Michael Lilja <ml@napatech.com>
Subject: [dpdk-dev] [PATCH v5] net/i40e: improved FDIR programming times
Date: Wed, 17 May 2017 12:38:07 +0200 [thread overview]
Message-ID: <20170517103807.18746-1-ml@napatech.com> (raw)
In-Reply-To: <20170517091212.6503-1-ml@napatech.com>
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 <ml@napatech.com>
---
v5:
* Reinitialization of "i" inconsistent with original intent
---
---
drivers/net/i40e/i40e_fdir.c | 20 ++++++++++----------
1 file changed, 10 insertions(+), 10 deletions(-)
diff --git a/drivers/net/i40e/i40e_fdir.c b/drivers/net/i40e/i40e_fdir.c
index 28cc554f5..85fd827e1 100644
--- a/drivers/net/i40e/i40e_fdir.c
+++ b/drivers/net/i40e/i40e_fdir.c
@@ -1296,27 +1296,27 @@ 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))
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.");
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_WAIT_COUNT * I40E_FDIR_WAIT_INTERVAL_US); 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 -ENOSYS;
}
/*
--
2.12.2
next prev parent reply other threads:[~2017-05-17 10:38 UTC|newest]
Thread overview: 20+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-05-16 22:01 [dpdk-dev] [PATCH v3] net/i40e: Improved " Michael Lilja
2017-05-17 2:22 ` Xing, Beilei
2017-05-17 8:44 ` Ferruh Yigit
2017-05-17 9:12 ` [dpdk-dev] [PATCH v4] net/i40e: improved " Michael Lilja
2017-05-17 9:39 ` Xing, Beilei
2017-05-17 10:38 ` Michael Lilja [this message]
2017-05-17 10:43 ` [dpdk-dev] [PATCH v5] " Xing, Beilei
2017-05-17 11:21 ` Ferruh Yigit
2017-05-17 13:45 ` [dpdk-dev] [PATCH v6] " Michael Lilja
2017-05-17 14:10 ` Ferruh Yigit
2017-05-17 14:31 ` [dpdk-dev] [PATCH v7] " Michael Lilja
2017-05-17 14:43 ` Ferruh Yigit
2017-05-17 14:46 ` Michael Lilja
2017-05-17 14:50 ` Ferruh Yigit
2017-05-17 14:52 ` Michael Lilja
2017-05-17 14:57 ` [dpdk-dev] [PATCH v8] " Michael Lilja
2017-05-17 15:16 ` Ferruh Yigit
2017-05-17 15:33 ` Michael Lilja
2017-05-18 1:38 ` Xing, Beilei
2017-05-18 8:52 ` Ferruh Yigit
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