[dpdk-stable] patch 'net/ixgbe: fix setting MTU on stopped device' has been queued to stable release 17.02.1
Yuanhan Liu
yuanhan.liu at linux.intel.com
Thu May 25 11:49:56 CEST 2017
Hi,
FYI, your patch has been queued to stable release 17.02.1
Note it hasn't been pushed to http://dpdk.org/browse/dpdk-stable yet.
It will be pushed if I get no objections before 05/28/17. So please
shout if anyone has objections.
Thanks.
--yliu
---
>From e67565b4506bdae2ae8c1a13681eae53b644b886 Mon Sep 17 00:00:00 2001
From: Jia Yu <jyu at vmware.com>
Date: Thu, 27 Apr 2017 23:11:31 -0700
Subject: [PATCH] net/ixgbe: fix setting MTU on stopped device
[ upstream commit 22d0e5aed3c22bd8b08d58cfd2ed261d5e45ae9c ]
There exists case that software sets mtu (i.e jumbo frame) of
ixgbe device when it's stopped. Before the fix, scattered_rx
is cleared during device stop, and setting jumbo frame mtu
after device stop will always fail as scattered_rx is 0.
Signed-off-by: Jia Yu <jyu at vmware.com>
Acked-by: Wenzhuo Lu <wenzhuo.lu at intel.com>
---
drivers/net/ixgbe/ixgbe_ethdev.c | 6 ++++--
1 file changed, 4 insertions(+), 2 deletions(-)
diff --git a/drivers/net/ixgbe/ixgbe_ethdev.c b/drivers/net/ixgbe/ixgbe_ethdev.c
index 131fc17..22d8a35 100644
--- a/drivers/net/ixgbe/ixgbe_ethdev.c
+++ b/drivers/net/ixgbe/ixgbe_ethdev.c
@@ -4437,6 +4437,7 @@ ixgbe_dev_mtu_set(struct rte_eth_dev *dev, uint16_t mtu)
struct ixgbe_hw *hw;
struct rte_eth_dev_info dev_info;
uint32_t frame_size = mtu + ETHER_HDR_LEN + ETHER_CRC_LEN;
+ struct rte_eth_rxmode *rx_conf = &dev->data->dev_conf.rxmode;
ixgbe_dev_info_get(dev, &dev_info);
@@ -4447,7 +4448,7 @@ ixgbe_dev_mtu_set(struct rte_eth_dev *dev, uint16_t mtu)
/* refuse mtu that requires the support of scattered packets when this
* feature has not been enabled before.
*/
- if (!dev->data->scattered_rx &&
+ if (!rx_conf->enable_scatter &&
(frame_size + 2 * IXGBE_VLAN_TAG_SIZE >
dev->data->min_rx_buf_size - RTE_PKTMBUF_HEADROOM))
return -EINVAL;
@@ -6204,6 +6205,7 @@ ixgbevf_dev_set_mtu(struct rte_eth_dev *dev, uint16_t mtu)
{
struct ixgbe_hw *hw;
uint32_t max_frame = mtu + ETHER_HDR_LEN + ETHER_CRC_LEN;
+ struct rte_eth_rxmode *rx_conf = &dev->data->dev_conf.rxmode;
hw = IXGBE_DEV_PRIVATE_TO_HW(dev->data->dev_private);
@@ -6213,7 +6215,7 @@ ixgbevf_dev_set_mtu(struct rte_eth_dev *dev, uint16_t mtu)
/* refuse mtu that requires the support of scattered packets when this
* feature has not been enabled before.
*/
- if (!dev->data->scattered_rx &&
+ if (!rx_conf->enable_scatter &&
(max_frame + 2 * IXGBE_VLAN_TAG_SIZE >
dev->data->min_rx_buf_size - RTE_PKTMBUF_HEADROOM))
return -EINVAL;
--
1.9.0
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