From: Wei Dai <wei.dai@intel.com>
To: jingjing.wu@intel.com, beilei.xing@intel.com, cunming.liang@intel.com
Cc: dev@dpdk.org, Wei Dai <wei.dai@intel.com>
Subject: [dpdk-dev] [PATCH 0/2] Fix 2 bugs of i40e VF interrupt found in l3fwd-power
Date: Thu, 2 Nov 2017 21:10:54 +0800 [thread overview]
Message-ID: <1509628256-16300-1-git-send-email-wei.dai@intel.com> (raw)
These 2 bugs can be observed from example/l3fwd-power run with i40e VF
bound to VFIO-PCI. The test steps are as follows:
1. Disable LSC interrupt by clearing port_conf.intr_conf.lsc=0, as i40e
VF doesn't support LSC interrupt to avoid rte_eth_dev_configure() failure.
2. Create a VF from i40e host PF. Let PF run with kernel driver and bind
its VF to VFIO-PCI
3. Run l3fwd-power like: l3fwd-power -l 18-19 -- -p 0x1 --config='(0,0,19)'
Then, the following error message appears like:
EAL: Error enabling MSI-X interrupts for fd 18
This error is from rte_intr_enable( )/vfio_enable_msix( ) when enabling
Rx queue interrupt.
Same as the patch 06938770186a ("net/ixgbe: fix VFIO interrupt mapping in VF"),
to change VFIO MSI-X interrupts mapping, previous mapping should be cleared
first to avoid above error.
After fixing above VFIO-PCI MSI-X interrupt mapping. There is still the following
2nd bug: l3fwd-power still can not be waked up by incoming packets.
Same as the patch ca9d6597184b ("net/ixgbe: fix Rx queue interrupt mapping in VF"),
the interrupt vector of Rx queues should be mapped to vector 1 to fix above 2nd bug.
Signed-off-by: Wei Dai <wei.dai@intel.com>
Wei Dai (2):
net/i40e: fix VFIO interrupt mapping in VF
net/i40e: fix Rx queue interrupt mapping in VF
drivers/net/i40e/i40e_ethdev_vf.c | 5 +++--
1 file changed, 3 insertions(+), 2 deletions(-)
--
2.7.5
next reply other threads:[~2017-11-02 13:25 UTC|newest]
Thread overview: 18+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-11-02 13:10 Wei Dai [this message]
2017-11-02 13:10 ` [dpdk-dev] [PATCH 1/2] net/i40e: fix VFIO interrupt mapping in VF Wei Dai
2017-11-03 2:25 ` Wu, Jingjing
2017-11-03 5:48 ` Dai, Wei
2017-11-02 13:10 ` [dpdk-dev] [PATCH 2/2] net/i40e: fix Rx queue " Wei Dai
2017-11-03 2:17 ` Wu, Jingjing
2017-11-03 5:51 ` Dai, Wei
2017-11-03 7:14 ` [dpdk-dev] [PATCH v2 0/2] Fix 2 bugs of i40e VF interrupt found in l3fwd-power Wei Dai
2017-11-03 7:14 ` [dpdk-dev] [PATCH v2 1/2] net/i40e: fix VFIO interrupt mapping in VF Wei Dai
2017-11-03 7:14 ` [dpdk-dev] [PATCH v2 2/2] net/i40e: fix Rx queue " Wei Dai
2017-11-03 8:31 ` [dpdk-dev] [PATCH v2 0/2] Fix 2 bugs of i40e VF interrupt found in l3fwd-power Yao, Lei A
2017-11-03 8:47 ` [dpdk-dev] [PATCH v3 " Wei Dai
2017-11-03 8:47 ` [dpdk-dev] [PATCH v3 1/2] net/i40e: fix VFIO interrupt mapping in VF Wei Dai
2017-11-03 10:36 ` Wu, Jingjing
2017-11-03 8:47 ` [dpdk-dev] [PATCH v3 2/2] net/i40e: fix Rx queue " Wei Dai
2017-11-03 10:37 ` Wu, Jingjing
2017-11-03 9:22 ` [dpdk-dev] [PATCH v3 0/2] Fix 2 bugs of i40e VF interrupt found in l3fwd-power Dai, Wei
2017-11-03 19:19 ` Ferruh Yigit
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