netdev - [net-next 04/10] ixgbe/fm10k: Record macvlan stats instead of Rx queue for macvlan offloaded rings

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Date:   Fri, 12 Jan 2018 09:29:26 -0800
From:   Jeff Kirsher <jeffrey.t.kirsher@...el.com>
To:     davem@...emloft.net
Cc:     Alexander Duyck <alexander.h.duyck@...el.com>,
        netdev@...r.kernel.org, nhorman@...hat.com, sassmann@...hat.com,
        jogreene@...hat.com, Jeff Kirsher <jeffrey.t.kirsher@...el.com>
Subject: [net-next 04/10] ixgbe/fm10k: Record macvlan stats instead of Rx queue for macvlan offloaded rings

From: Alexander Duyck <alexander.h.duyck@...el.com>

We shouldn't be recording the Rx queue on macvlan offloaded frames since
the macvlan is normally brought up as a single queue device, and it will
trigger warnings for RPS if we have recorded queue IDs larger than the
"real_num_rx_queues" value recorded for the device.

Instead we should be recording the macvlan statistics since we are
bypassing the normal macvlan statistics that would have been generated by
the receive path.

Signed-off-by: Alexander Duyck <alexander.h.duyck@...el.com>
Tested-by: Andrew Bowers <andrewx.bowers@...el.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@...el.com>
---
 drivers/net/ethernet/intel/fm10k/fm10k_main.c | 14 ++++++--------
 drivers/net/ethernet/intel/ixgbe/ixgbe_main.c | 10 ++++++++--
 2 files changed, 14 insertions(+), 10 deletions(-)

diff --git a/drivers/net/ethernet/intel/fm10k/fm10k_main.c b/drivers/net/ethernet/intel/fm10k/fm10k_main.c
index 538b42d5c187..8e12aae065d8 100644
--- a/drivers/net/ethernet/intel/fm10k/fm10k_main.c
+++ b/drivers/net/ethernet/intel/fm10k/fm10k_main.c
@@ -446,13 +446,13 @@ static void fm10k_type_trans(struct fm10k_ring *rx_ring,
 
 	skb->protocol = eth_type_trans(skb, dev);
 
+	/* Record Rx queue, or update macvlan statistics */
 	if (!l2_accel)
-		return;
-
-	/* update MACVLAN statistics */
-	macvlan_count_rx(netdev_priv(dev), skb->len + ETH_HLEN, 1,
-			 !!(rx_desc->w.hdr_info &
-			    cpu_to_le16(FM10K_RXD_HDR_INFO_XC_MASK)));
+		skb_record_rx_queue(skb, rx_ring->queue_index);
+	else
+		macvlan_count_rx(netdev_priv(dev), skb->len + ETH_HLEN, true,
+				 (skb->pkt_type == PACKET_BROADCAST) ||
+				 (skb->pkt_type == PACKET_MULTICAST));
 }
 
 /**
@@ -479,8 +479,6 @@ static unsigned int fm10k_process_skb_fields(struct fm10k_ring *rx_ring,
 
 	FM10K_CB(skb)->fi.w.vlan = rx_desc->w.vlan;
 
-	skb_record_rx_queue(skb, rx_ring->queue_index);
-
 	FM10K_CB(skb)->fi.d.glort = rx_desc->d.glort;
 
 	if (rx_desc->w.vlan) {
diff --git a/drivers/net/ethernet/intel/ixgbe/ixgbe_main.c b/drivers/net/ethernet/intel/ixgbe/ixgbe_main.c
index 42b4f4cee3d6..048c7bc76b91 100644
--- a/drivers/net/ethernet/intel/ixgbe/ixgbe_main.c
+++ b/drivers/net/ethernet/intel/ixgbe/ixgbe_main.c
@@ -1749,9 +1749,15 @@ static void ixgbe_process_skb_fields(struct ixgbe_ring *rx_ring,
 		__vlan_hwaccel_put_tag(skb, htons(ETH_P_8021Q), vid);
 	}
 
-	skb_record_rx_queue(skb, rx_ring->queue_index);
-
 	skb->protocol = eth_type_trans(skb, dev);
+
+	/* record Rx queue, or update MACVLAN statistics */
+	if (netif_is_ixgbe(dev))
+		skb_record_rx_queue(skb, rx_ring->queue_index);
+	else
+		macvlan_count_rx(netdev_priv(dev), skb->len + ETH_HLEN, true,
+				 (skb->pkt_type == PACKET_BROADCAST) ||
+				 (skb->pkt_type == PACKET_MULTICAST));
 }
 
 static void ixgbe_rx_skb(struct ixgbe_q_vector *q_vector,
-- 
2.15.1