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From: Wenzhuo Lu <wenzhuo.lu@intel.com>
To: dev@dpdk.org
Cc: Ferruh Yigit <ferruh.yigit@intel.com>, stable@dpdk.org
Subject: [dpdk-stable] [PATCH v10 12/26] net/i40e: fix VF MAC address assignment
Date: Mon, 16 Jan 2017 13:51:37 +0800	[thread overview]
Message-ID: <1484545911-40432-13-git-send-email-wenzhuo.lu@intel.com> (raw)
In-Reply-To: <1484545911-40432-1-git-send-email-wenzhuo.lu@intel.com>

From: Ferruh Yigit <ferruh.yigit@intel.com>

If PF sets vf->mac_addr, in VF initialization hw->mac.addr will be set
to that same value. It is possible to check if PF set a MAC address or
not through the hw->mac.addr variable.

hw->mac.addr set by i40e_vf_parse_hw_config(), call stack is:

In PF side
i40e_pf_host_process_cmd_get_vf_resources()
    eth_addr_copy(vf->mac_addr, vf_res->vsi_res[0].default_mac_address)

In VF sise
i40evf_init_vf()
    i40evf_get_vf_resources()
            i40e_vf_parse_hw_config()
                    memcpy(hw->mac.addr, vsi_res->default_mac_addr)

Updated code is after i40evf_get_vf_resources() and can benefit from
hw->mac.addr variable.

Fixes: 89e6b86384bb ("i40evf: rework MAC address validation")

CC: stable@dpdk.org
Signed-off-by: Ferruh Yigit <ferruh.yigit@intel.com>
---
 drivers/net/i40e/i40e_ethdev_vf.c | 8 ++------
 1 file changed, 2 insertions(+), 6 deletions(-)

diff --git a/drivers/net/i40e/i40e_ethdev_vf.c b/drivers/net/i40e/i40e_ethdev_vf.c
index a9a8bb4..17a035c 100644
--- a/drivers/net/i40e/i40e_ethdev_vf.c
+++ b/drivers/net/i40e/i40e_ethdev_vf.c
@@ -1195,7 +1195,6 @@ static int i40evf_dev_xstats_get(struct rte_eth_dev *dev,
 	int i, err, bufsz;
 	struct i40e_hw *hw = I40E_DEV_PRIVATE_TO_HW(dev->data->dev_private);
 	struct i40e_vf *vf = I40EVF_DEV_PRIVATE_TO_VF(dev->data->dev_private);
-	struct ether_addr *p_mac_addr;
 	uint16_t interval =
 		i40e_calc_itr_interval(I40E_QUEUE_ITR_INTERVAL_MAX);
 
@@ -1272,13 +1271,10 @@ static int i40evf_dev_xstats_get(struct rte_eth_dev *dev,
 	vf->vsi.adapter = I40E_DEV_PRIVATE_TO_ADAPTER(dev->data->dev_private);
 
 	/* Store the MAC address configured by host, or generate random one */
-	p_mac_addr = (struct ether_addr *)(vf->vsi_res->default_mac_addr);
-	if (is_valid_assigned_ether_addr(p_mac_addr)) { /* Configured by host */
-		ether_addr_copy(p_mac_addr, (struct ether_addr *)hw->mac.addr);
+	if (is_valid_assigned_ether_addr((struct ether_addr *)hw->mac.addr))
 		vf->flags |= I40E_FLAG_VF_MAC_BY_PF;
-	} else {
+	else
 		eth_random_addr(hw->mac.addr); /* Generate a random one */
-	}
 
 	/* If the PF host is not DPDK, set the interval of ITR0 to max*/
 	if (vf->version_major != I40E_DPDK_VERSION_MAJOR) {
-- 
1.9.3

  parent reply	other threads:[~2017-01-16  5:52 UTC|newest]

Thread overview: 22+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
     [not found] <1480637533-37425-1-git-send-email-wenzhuo.lu@intel.com>
     [not found] ` <1481081535-37448-1-git-send-email-wenzhuo.lu@intel.com>
2016-12-07  3:31   ` [dpdk-stable] [PATCH v2 11/32] net/i40e: fix VF reset flow Wenzhuo Lu
2016-12-07  3:31   ` [dpdk-stable] [PATCH v2 14/32] net/i40e: fix VF MAC address assignment Wenzhuo Lu
     [not found] ` <1482302070-128496-1-git-send-email-wenzhuo.lu@intel.com>
2016-12-21  6:34   ` [dpdk-stable] [PATCH v6 09/25] net/i40e: fix VF reset flow Wenzhuo Lu
2016-12-21  6:34   ` [dpdk-stable] [PATCH v6 12/25] net/i40e: fix VF MAC address assignment Wenzhuo Lu
     [not found] ` <1483426488-117332-1-git-send-email-wenzhuo.lu@intel.com>
2017-01-03  6:54   ` [dpdk-stable] [PATCH v7 09/27] net/i40e: fix VF reset flow Wenzhuo Lu
2017-01-03  6:54   ` [dpdk-stable] [PATCH v7 12/27] net/i40e: fix VF MAC address assignment Wenzhuo Lu
2017-01-03  6:54   ` [dpdk-stable] [PATCH v7 26/27] net/i40e: fix segmentation fault in close Wenzhuo Lu
2017-01-06  1:29     ` [dpdk-stable] [dpdk-dev] " Wu, Jingjing
2017-01-06 12:00       ` Iremonger, Bernard
2017-01-09  9:44         ` Wu, Jingjing
2017-01-09  9:50           ` Iremonger, Bernard
     [not found] ` <1484032580-60134-1-git-send-email-wenzhuo.lu@intel.com>
2017-01-10  7:16   ` [dpdk-stable] [PATCH v8 09/25] net/i40e: fix VF reset flow Wenzhuo Lu
2017-01-10  7:16   ` [dpdk-stable] [PATCH v8 12/25] net/i40e: fix VF MAC address assignment Wenzhuo Lu
     [not found] ` <1484290401-1404-1-git-send-email-wenzhuo.lu@intel.com>
2017-01-13  6:53   ` [dpdk-stable] [PATCH v9 09/26] net/i40e: fix VF reset flow Wenzhuo Lu
2017-01-13  6:53   ` [dpdk-stable] [PATCH v9 12/26] net/i40e: fix VF MAC address assignment Wenzhuo Lu
     [not found] ` <1484545911-40432-1-git-send-email-wenzhuo.lu@intel.com>
2017-01-16  5:51   ` [dpdk-stable] [PATCH v10 09/26] net/i40e: fix VF reset flow Wenzhuo Lu
2017-01-16  5:51   ` Wenzhuo Lu [this message]
     [not found] ` <1484620116-70813-1-git-send-email-wenzhuo.lu@intel.com>
2017-01-17  2:28   ` [dpdk-stable] [PATCH v11 " Wenzhuo Lu
2017-01-17  2:28   ` [dpdk-stable] [PATCH v11 12/26] net/i40e: fix VF MAC address assignment Wenzhuo Lu
     [not found] ` <1484642728-73411-1-git-send-email-wenzhuo.lu@intel.com>
2017-01-17  8:45   ` [dpdk-stable] [PATCH v12 09/26] net/i40e: fix VF reset flow Wenzhuo Lu
2017-01-17  8:45   ` [dpdk-stable] [PATCH v12 12/26] net/i40e: fix VF MAC address assignment Wenzhuo Lu
     [not found] <1484545289-40290-1-git-send-email-wenzhuo.lu@intel.com>
2017-01-16  5:41 ` [dpdk-stable] [PATCH v10 " Wenzhuo Lu

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