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net/ice: fix performance with writeback policy

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Apply the same fix that for iavf to DCF
commit ead06572bd8f ("net/iavf: fix performance with writeback policy")

Fixes: 4b0d391f0eab ("net/ice: add queue config in DCF")
Cc: stable@dpdk.org

Signed-off-by: Qi Zhang <qi.z.zhang@intel.com>
Tested-by: Lijuan Tu <lijuan.tu@intel.com>
This commit is contained in:
Qi Zhang 2021-08-29 17:24:52 +08:00
parent d54b51efb6
commit af167bcf17
1 changed files with 7 additions and 2 deletions
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9
drivers/net/ice/ice_dcf_ethdev.c
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@ -178,10 +178,15 @@ ice_dcf_config_rx_queues_irqs(struct rte_eth_dev *dev,
VIRTCHNL_VF_OFFLOAD_WB_ON_ITR) {
/* If WB_ON_ITR supports, enable it */
hw->msix_base = IAVF_RX_VEC_START;
/* Set the ITR for index zero, to 2us to make sure that
* we leave time for aggregation to occur, but don't
* increase latency dramatically.
*/
IAVF_WRITE_REG(&hw->avf,
IAVF_VFINT_DYN_CTLN1(hw->msix_base - 1),
IAVF_VFINT_DYN_CTLN1_ITR_INDX_MASK |
IAVF_VFINT_DYN_CTLN1_WB_ON_ITR_MASK);
(0 << IAVF_VFINT_DYN_CTLN1_ITR_INDX_SHIFT) |
IAVF_VFINT_DYN_CTLN1_WB_ON_ITR_MASK |
(2UL << IAVF_VFINT_DYN_CTLN1_INTERVAL_SHIFT));
} else {
/* If no WB_ON_ITR offload flags, need to set
* interrupt for descriptor write back.