[dpdk-stable] patch 'net/fm10k: fix VF Tx queue initialization' has been queued to stable release 16.07.2

[Yuanhan Liu]

Hi,

FYI, your patch has been queued to stable release 16.07.2

Note it hasn't been pushed to http://dpdk.org/browse/dpdk-stable
yet. It will be pushed if I get no objections before 11/06/16.
So please shout if anyone has objections.

Thanks.

	--yliu

---
>From 65e55e4f13239e04873d5a7f67072e8039afb7cc Mon Sep 17 00:00:00 2001
From: Xiao Wang <xiao.w.wang at intel.com>
Date: Wed, 19 Oct 2016 09:30:14 +0800
Subject: [PATCH] net/fm10k: fix VF Tx queue initialization

[ upstream commit 2c448da6aa1028fd75d631d3aa3c265483042aaa ]

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")

Reported-by: Sarath Somasekharan <sarathx.somasekharan at intel.com>
Signed-off-by: Xiao Wang <xiao.w.wang at 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 89d99d4..35cbe08 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 */
-- 
1.9.0