netdev - [PATCH v3 net-next 2/3] sfc: falcon: don't score irq moderation points for GRO

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Message-ID: <e441a637-3d21-e6f0-d6b2-ce7e76129fe9@solarflare.com>
Date:   Tue, 6 Aug 2019 14:53:31 +0100
From:   Edward Cree <ecree@...arflare.com>
To:     David Miller <davem@...emloft.net>
CC:     netdev <netdev@...r.kernel.org>,
        Eric Dumazet <eric.dumazet@...il.com>,
        <linux-net-drivers@...arflare.com>
Subject: [PATCH v3 net-next 2/3] sfc: falcon: don't score irq moderation
 points for GRO

Same rationale as for sfc, except that this wasn't performance-tested.

Signed-off-by: Edward Cree <ecree@...arflare.com>
---
 drivers/net/ethernet/sfc/falcon/rx.c | 5 +----
 1 file changed, 1 insertion(+), 4 deletions(-)

diff --git a/drivers/net/ethernet/sfc/falcon/rx.c b/drivers/net/ethernet/sfc/falcon/rx.c
index fd850d3d8ec0..05ea3523890a 100644
--- a/drivers/net/ethernet/sfc/falcon/rx.c
+++ b/drivers/net/ethernet/sfc/falcon/rx.c
@@ -424,7 +424,6 @@ ef4_rx_packet_gro(struct ef4_channel *channel, struct ef4_rx_buffer *rx_buf,
 		  unsigned int n_frags, u8 *eh)
 {
 	struct napi_struct *napi = &channel->napi_str;
-	gro_result_t gro_result;
 	struct ef4_nic *efx = channel->efx;
 	struct sk_buff *skb;
 
@@ -460,9 +459,7 @@ ef4_rx_packet_gro(struct ef4_channel *channel, struct ef4_rx_buffer *rx_buf,
 
 	skb_record_rx_queue(skb, channel->rx_queue.core_index);
 
-	gro_result = napi_gro_frags(napi);
-	if (gro_result != GRO_DROP)
-		channel->irq_mod_score += 2;
+	napi_gro_frags(napi);
 }
 
 /* Allocate and construct an SKB around page fragments */