[dpdk-stable] patch 'net/i40e: fix Rx queue interrupt mapping in VF' has been queued to LTS release 16.11.4

[luca.boccassi at gmail.com]

Hi,

FYI, your patch has been queued to LTS release 16.11.4

Note it hasn't been pushed to http://dpdk.org/browse/dpdk-stable yet.
It will be pushed if I get no objections before 11/12/17. So please
shout if anyone has objections.

Thanks.

Kind regards,
Luca Boccassi

---
>From 28168437a7d91d48cfd7a7e75022f866812643d5 Mon Sep 17 00:00:00 2001
From: Wei Dai <wei.dai at intel.com>
Date: Fri, 3 Nov 2017 16:47:30 +0800
Subject: [PATCH] net/i40e: fix Rx queue interrupt mapping in VF

[ upstream commit 96a9fd03c25f6684009fcbf6ec33f4450e45a168 ]

When a VF port is bound to VFIO-PCI, miscellaneous interrupt is
mapped to MSI-X vector 0 and Rx queues interrupt are mapped to
other vectors in vfio_enable_msix( ). To simplify implementation,
all VFIO-PCI bound i40e VF Rx queue interrupts can be mapped in
vector 1. And as current igb_uio only support only one vector,
i40e VF PMD should use vector 0 for igb_uio and vector 1 for
VFIO-PCI. Without this patch, VF Rx queue interrupt is mapped
to vector 0 in register settings and mapped to VFIO vector 1
in vfio_enable_msix( ), and then all Rx queue interrupts will
be missed.
Also remove 2 unused macro definitions.

Fixes: 4b90a3ff26c5 ("i40evf: support Rx interrupt")
Fixes: 975ffea6f671 ("net/i40e: remove DPDK PF version specific code")

Signed-off-by: Wei Dai <wei.dai at intel.com>
Tested-by: Lei Yao <lei.a.yao at intel.com>
Acked-by: Jingjing Wu <jingjing.wu at intel.com>
---
 drivers/net/i40e/i40e_ethdev_vf.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/drivers/net/i40e/i40e_ethdev_vf.c b/drivers/net/i40e/i40e_ethdev_vf.c
index 424942a33..2b533bade 100644
--- a/drivers/net/i40e/i40e_ethdev_vf.c
+++ b/drivers/net/i40e/i40e_ethdev_vf.c
@@ -68,7 +68,6 @@
 #include "i40e_ethdev.h"
 #include "i40e_pf.h"
 #define I40EVF_VSI_DEFAULT_MSIX_INTR     1
-#define I40EVF_VSI_DEFAULT_MSIX_INTR_LNX 0
 
 /* busy wait delay in msec */
 #define I40EVF_BUSY_WAIT_DELAY 10
@@ -727,7 +726,7 @@ i40evf_config_irq_map(struct rte_eth_dev *dev)
 		if (vf->version_major == I40E_DPDK_VERSION_MAJOR)
 			vector_id = I40EVF_VSI_DEFAULT_MSIX_INTR;
 		else
-			vector_id = I40EVF_VSI_DEFAULT_MSIX_INTR_LNX;
+			vector_id = I40E_RX_VEC_START;
 	} else {
 		vector_id = I40E_MISC_VEC_ID;
 	}
-- 
2.11.0