From: Qi Zhang <qi.z.zhang@intel.com>
To: beilei.xing@intel.com, wenzhuo.lu@intel.com
Cc: dev@dpdk.org, Qi Zhang <qi.z.zhang@intel.com>, stable@dpdk.org
Subject: [dpdk-dev] [PATCH v2] net/i40e: fix scattered Rx enabling
Date: Wed, 10 Apr 2019 23:26:23 +0800 [thread overview]
Message-ID: <20190410152623.27995-1-qi.z.zhang@intel.com> (raw)
No need to add additional vlan tag size for max packet size, since
for i40e, the queue's Rx Max Frame Size (rxq->max_pkt_len) already
includes the vlan header size.
Fixes: a3c83a2527e1 ("net/i40e: enable runtime queue setup")
Fixes: 4861cde46116 ("i40e: new poll mode driver")
Cc: stable@dpdk.org
Signed-off-by: Qi Zhang <qi.z.zhang@intel.com>
---
v2:
- add missing fix in i40evf_rxq_init.
- fix checkpatch warning.
drivers/net/i40e/i40e_ethdev_vf.c | 3 +--
drivers/net/i40e/i40e_rxtx.c | 5 ++---
2 files changed, 3 insertions(+), 5 deletions(-)
diff --git a/drivers/net/i40e/i40e_ethdev_vf.c b/drivers/net/i40e/i40e_ethdev_vf.c
index add7b2223..87c45f278 100644
--- a/drivers/net/i40e/i40e_ethdev_vf.c
+++ b/drivers/net/i40e/i40e_ethdev_vf.c
@@ -1785,9 +1785,8 @@ i40evf_rxq_init(struct rte_eth_dev *dev, struct i40e_rx_queue *rxq)
}
if ((dev_data->dev_conf.rxmode.offloads & DEV_RX_OFFLOAD_SCATTER) ||
- (rxq->max_pkt_len + 2 * I40E_VLAN_TAG_SIZE) > buf_size) {
+ rxq->max_pkt_len > buf_size)
dev_data->scattered_rx = 1;
- }
return 0;
}
diff --git a/drivers/net/i40e/i40e_rxtx.c b/drivers/net/i40e/i40e_rxtx.c
index 8f727fae6..58ed8145d 100644
--- a/drivers/net/i40e/i40e_rxtx.c
+++ b/drivers/net/i40e/i40e_rxtx.c
@@ -1718,7 +1718,7 @@ i40e_dev_rx_queue_setup_runtime(struct rte_eth_dev *dev,
(uint16_t)(rte_pktmbuf_data_room_size(rxq->mp) -
RTE_PKTMBUF_HEADROOM);
int use_scattered_rx =
- ((rxq->max_pkt_len + 2 * I40E_VLAN_TAG_SIZE) > buf_size);
+ (rxq->max_pkt_len > buf_size);
if (i40e_rx_queue_init(rxq) != I40E_SUCCESS) {
PMD_DRV_LOG(ERR,
@@ -2708,9 +2708,8 @@ i40e_rx_queue_init(struct i40e_rx_queue *rxq)
RTE_PKTMBUF_HEADROOM);
/* Check if scattered RX needs to be used. */
- if ((rxq->max_pkt_len + 2 * I40E_VLAN_TAG_SIZE) > buf_size) {
+ if (rxq->max_pkt_len > buf_size)
dev_data->scattered_rx = 1;
- }
/* Init the RX tail regieter. */
I40E_PCI_REG_WRITE(rxq->qrx_tail, rxq->nb_rx_desc - 1);
--
2.13.6
next reply other threads:[~2019-04-10 15:24 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-04-10 15:26 Qi Zhang [this message]
2019-04-10 15:26 ` Qi Zhang
2019-04-12 1:44 ` Lu, Wenzhuo
2019-04-12 1:44 ` Lu, Wenzhuo
2019-04-12 2:12 ` Zhang, Qi Z
2019-04-12 2:12 ` Zhang, Qi Z
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