* [PATCH] net/fm10k: fix SGLORT of VF Tx queues
@ 2016-10-19 1:30 Xiao Wang
2016-10-19 10:10 ` Bruce Richardson
0 siblings, 1 reply; 2+ messages in thread
From: Xiao Wang @ 2016-10-19 1:30 UTC (permalink / raw)
To: jing.d.chen; +Cc: dev, Xiao Wang
The SGLORT (Source Global Resource Tag) of the VF queues should be
assigned by PF driver, VF driver should not set these registers.
Fixes: 3b845bf6bcd9 ("fm10k: fix switch manager high CPU usage")
Signed-off-by: Xiao Wang <xiao.w.wang@intel.com>
Reported-by: Sarathx Somasekharan <sarathx.somasekharan@intel.com>
---
drivers/net/fm10k/fm10k_ethdev.c | 5 +++--
1 file changed, 3 insertions(+), 2 deletions(-)
diff --git a/drivers/net/fm10k/fm10k_ethdev.c b/drivers/net/fm10k/fm10k_ethdev.c
index c804436..923690c 100644
--- a/drivers/net/fm10k/fm10k_ethdev.c
+++ b/drivers/net/fm10k/fm10k_ethdev.c
@@ -695,8 +695,9 @@ fm10k_dev_tx_init(struct rte_eth_dev *dev)
base_addr >> (CHAR_BIT * sizeof(uint32_t)));
FM10K_WRITE_REG(hw, FM10K_TDLEN(i), size);
- /* assign default SGLORT for each TX queue */
- FM10K_WRITE_REG(hw, FM10K_TX_SGLORT(i), hw->mac.dglort_map);
+ /* assign default SGLORT for each TX queue by PF */
+ if (hw->mac.type == fm10k_mac_pf)
+ FM10K_WRITE_REG(hw, FM10K_TX_SGLORT(i), hw->mac.dglort_map);
}
/* set up vector or scalar TX function as appropriate */
--
1.9.3
^ permalink raw reply related [flat|nested] 2+ messages in thread
* Re: [PATCH] net/fm10k: fix SGLORT of VF Tx queues
2016-10-19 1:30 [PATCH] net/fm10k: fix SGLORT of VF Tx queues Xiao Wang
@ 2016-10-19 10:10 ` Bruce Richardson
0 siblings, 0 replies; 2+ messages in thread
From: Bruce Richardson @ 2016-10-19 10:10 UTC (permalink / raw)
To: Xiao Wang; +Cc: jing.d.chen, dev
On Wed, Oct 19, 2016 at 09:30:14AM +0800, Xiao Wang wrote:
> The SGLORT (Source Global Resource Tag) of the VF queues should be
> assigned by PF driver, VF driver should not set these registers.
>
> Fixes: 3b845bf6bcd9 ("fm10k: fix switch manager high CPU usage")
>
> Signed-off-by: Xiao Wang <xiao.w.wang@intel.com>
> Reported-by: Sarathx Somasekharan <sarathx.somasekharan@intel.com>
Applied to dpdk-next-net/rel_16_11
/Bruce
^ permalink raw reply [flat|nested] 2+ messages in thread
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2016-10-19 10:10 ` Bruce Richardson
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