netdev - [PATCH v4 net-next 10/11] ibmvnic: Record SKB RX queue during poll

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Message-Id: <20170503180519.29742.54213.stgit@ltcalpine2-lp23.aus.stglabs.ibm.com>
Date:   Wed, 03 May 2017 14:05:20 -0400
From:   Nathan Fontenot <nfont@...ux.vnet.ibm.com>
To:     netdev@...r.kernel.org
Cc:     brking@...ux.vnet.ibm.com, jallen@...ux.vnet.ibm.com,
        muvic@...ux.vnet.ibm.com, tlfalcon@...ux.vnet.ibm.com
Subject: [PATCH v4 net-next 10/11] ibmvnic: Record SKB RX queue during poll

From: Thomas Falcon <tlfalcon@...ux.vnet.ibm.com>

Map each RX SKB to the RX queue associated with the driver's RX SCRQ.
This should improve the RX CPU load balancing issues seen by the
performance team.

Signed-off-by: Thomas Falcon <tlfalcon@...ux.vnet.ibm.com>
---
 drivers/net/ethernet/ibm/ibmvnic.c |    1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/net/ethernet/ibm/ibmvnic.c b/drivers/net/ethernet/ibm/ibmvnic.c
index 00c9d5a..1b6268c 100644
--- a/drivers/net/ethernet/ibm/ibmvnic.c
+++ b/drivers/net/ethernet/ibm/ibmvnic.c
@@ -1428,6 +1428,7 @@ static int ibmvnic_poll(struct napi_struct *napi, int budget)
 
 		skb_put(skb, length);
 		skb->protocol = eth_type_trans(skb, netdev);
+		skb_record_rx_queue(skb, scrq_num);
 
 		if (flags & IBMVNIC_IP_CHKSUM_GOOD &&
 		    flags & IBMVNIC_TCP_UDP_CHKSUM_GOOD) {