[v2] net/ixgbe: fix RSS RETA be reset after port start
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Commit Message
If one calls ‘rte_eth_dev_rss_reta_update’ with ixgbe before starting
the device (but after setting everything else), then RSS RETA
configuration be zero after starting the device.
This patch gives a notification if the port not started.
Bugzilla ID: 664
Fixes: 249358424eab ("ixgbe: RSS RETA configuration")
Signed-off-by: Murphy Yang <murphyx.yang@intel.com>
---
v2:
- tune the return value
drivers/net/ixgbe/ixgbe_ethdev.c | 8 ++++++++
1 file changed, 8 insertions(+)
Comments
> -----Original Message-----
> From: Murphy Yang <murphyx.yang@intel.com>
> Sent: Monday, March 29, 2021 16:11
> To: dev@dpdk.org
> Cc: Yang, Qiming <qiming.yang@intel.com>; Wang, Haiyue <haiyue.wang@intel.com>; Guo, Jia
> <jia.guo@intel.com>; Yang, SteveX <stevex.yang@intel.com>; Zhang, RobinX <robinx.zhang@intel.com>;
> Yang, MurphyX <murphyx.yang@intel.com>
> Subject: [PATCH v2] net/ixgbe: fix RSS RETA be reset after port start
>
> If one calls ‘rte_eth_dev_rss_reta_update’ with ixgbe before starting
> the device (but after setting everything else), then RSS RETA
> configuration be zero after starting the device.
>
> This patch gives a notification if the port not started.
>
> Bugzilla ID: 664
> Fixes: 249358424eab ("ixgbe: RSS RETA configuration")
>
> Signed-off-by: Murphy Yang <murphyx.yang@intel.com>
> ---
> v2:
> - tune the return value
>
> drivers/net/ixgbe/ixgbe_ethdev.c | 8 ++++++++
> 1 file changed, 8 insertions(+)
Acked-by: Haiyue Wang <haiyue.wang@intel.com>
> --
> 2.17.1
@@ -5015,11 +5015,19 @@ ixgbe_dev_rss_reta_update(struct rte_eth_dev *dev,
uint32_t reta, r;
uint16_t idx, shift;
struct ixgbe_adapter *adapter = dev->data->dev_private;
+ struct rte_eth_dev_data *dev_data = dev->data;
struct ixgbe_hw *hw = IXGBE_DEV_PRIVATE_TO_HW(dev->data->dev_private);
uint32_t reta_reg;
PMD_INIT_FUNC_TRACE();
+ if (!dev_data->dev_started) {
+ PMD_DRV_LOG(ERR,
+ "port %d must be started before configuration",
+ dev_data->port_id);
+ return -EIO;
+ }
+
if (!ixgbe_rss_update_sp(hw->mac.type)) {
PMD_DRV_LOG(ERR, "RSS reta update is not supported on this "
"NIC.");