From mboxrd@z Thu Jan 1 00:00:00 1970 From: Xiao Wang Subject: [PATCH] net/fm10k: fix SGLORT of VF Tx queues Date: Wed, 19 Oct 2016 09:30:14 +0800 Message-ID: <1476840614-1478-1-git-send-email-xiao.w.wang@intel.com> Cc: dev@dpdk.org, Xiao Wang To: jing.d.chen@intel.com Return-path: Received: from mga14.intel.com (mga14.intel.com [192.55.52.115]) by dpdk.org (Postfix) with ESMTP id 74F72475D for ; Wed, 19 Oct 2016 03:30:41 +0200 (CEST) List-Id: patches and discussions about DPDK List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: dev-bounces@dpdk.org Sender: "dev" 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 Reported-by: Sarathx Somasekharan --- 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