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>, stable@dpdk.org
Subject: [dpdk-stable] [PATCH 1/2] net/i40e: fix VFIO interrupt mapping in VF
Date: Thu, 2 Nov 2017 21:10:55 +0800 [thread overview]
Message-ID: <1509628256-16300-2-git-send-email-wei.dai@intel.com> (raw)
In-Reply-To: <1509628256-16300-1-git-send-email-wei.dai@intel.com>
When a VF port is bound to VFIO-PIC, only miscellaneous interrupt
is mapped to VFIO vector 0 in i40evf_dev_init( ).
In ixgbevf_dev_interrupt_handler( ), if previous VFIO interrupt
mapping set in i40evf_dev_init( ) is not cleard, it will fail when
calling rte_intr_enable( ) tries to map Rx queue interrupt to other
VFIO vectors. This patch clears the VFIO interrupt mappings before
setting both miscellaneous and Rx queue interrupt mappings again
to avoid failure.
Fixes: 4b90a3ff26c5 ("i40evf: support Rx interrupt")
Cc: stable@dpdk.org
Signed-off-by: Wei Dai <wei.dai@intel.com>
---
drivers/net/i40e/i40e_ethdev_vf.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/drivers/net/i40e/i40e_ethdev_vf.c b/drivers/net/i40e/i40e_ethdev_vf.c
index 3b76c9e..567b7d0 100644
--- a/drivers/net/i40e/i40e_ethdev_vf.c
+++ b/drivers/net/i40e/i40e_ethdev_vf.c
@@ -1432,8 +1432,9 @@ i40evf_dev_interrupt_handler(void *param)
" do nothing");
done:
- i40evf_enable_irq0(hw);
+ rte_intr_disable(dev->intr_handle);
rte_intr_enable(dev->intr_handle);
+ i40evf_enable_irq0(hw);
}
static int
--
2.7.5
next parent reply other threads:[~2017-11-02 13:25 UTC|newest]
Thread overview: 12+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <1509628256-16300-1-git-send-email-wei.dai@intel.com>
2017-11-02 13:10 ` Wei Dai [this message]
2017-11-03 2:25 ` Wu, Jingjing
2017-11-03 5:48 ` Dai, Wei
2017-11-02 13:10 ` [dpdk-stable] [PATCH 2/2] net/i40e: fix Rx queue " Wei Dai
2017-11-03 2:17 ` Wu, Jingjing
2017-11-03 5:51 ` Dai, Wei
[not found] ` <1509693243-43101-1-git-send-email-wei.dai@intel.com>
2017-11-03 7:14 ` [dpdk-stable] [PATCH v2 1/2] net/i40e: fix VFIO " Wei Dai
2017-11-03 7:14 ` [dpdk-stable] [PATCH v2 2/2] net/i40e: fix Rx queue " Wei Dai
[not found] ` <1509698850-13301-1-git-send-email-wei.dai@intel.com>
2017-11-03 8:47 ` [dpdk-stable] [PATCH v3 1/2] net/i40e: fix VFIO " Wei Dai
2017-11-03 10:36 ` Wu, Jingjing
2017-11-03 8:47 ` [dpdk-stable] [PATCH v3 2/2] net/i40e: fix Rx queue " Wei Dai
2017-11-03 10:37 ` Wu, Jingjing
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