diff mbox series

[net-next,1/9] net: lantiq_etop: use netif_receive_skb_list

Message ID 20240930202434.296960-2-rosenp@gmail.com (mailing list archive)
State Superseded
Delegated to: Netdev Maintainers
Headers show
Series net: lantiq_etop: some cleanups | expand

Checks

Context Check Description
netdev/series_format success Posting correctly formatted
netdev/tree_selection success Clearly marked for net-next
netdev/ynl success Generated files up to date; no warnings/errors; no diff in generated;
netdev/fixes_present success Fixes tag not required for -next series
netdev/header_inline success No static functions without inline keyword in header files
netdev/build_32bit success Errors and warnings before: 9 this patch: 9
netdev/build_tools success No tools touched, skip
netdev/cc_maintainers success CCed 6 of 6 maintainers
netdev/build_clang success Errors and warnings before: 9 this patch: 9
netdev/verify_signedoff success Signed-off-by tag matches author and committer
netdev/deprecated_api success None detected
netdev/check_selftest success No net selftest shell script
netdev/verify_fixes success No Fixes tag
netdev/build_allmodconfig_warn fail Errors and warnings before: 12 this patch: 12
netdev/checkpatch success total: 0 errors, 0 warnings, 0 checks, 37 lines checked
netdev/build_clang_rust success No Rust files in patch. Skipping build
netdev/kdoc success Errors and warnings before: 0 this patch: 0
netdev/source_inline success Was 0 now: 0

Commit Message

Rosen Penev Sept. 30, 2024, 8:24 p.m. UTC 
Improves cache efficiency by batching rx skb processing. Small
performance improvement on RX.

Signed-off-by: Rosen Penev <rosenp@gmail.com>
---
 drivers/net/ethernet/lantiq_etop.c | 11 +++++++----
 1 file changed, 7 insertions(+), 4 deletions(-)
diff mbox series

Patch

diff --git a/drivers/net/ethernet/lantiq_etop.c b/drivers/net/ethernet/lantiq_etop.c
index 3c289bfe0a09..94b37c12f3f7 100644
--- a/drivers/net/ethernet/lantiq_etop.c
+++ b/drivers/net/ethernet/lantiq_etop.c
@@ -122,8 +122,7 @@  ltq_etop_alloc_skb(struct ltq_etop_chan *ch)
 	return 0;
 }
 
-static void
-ltq_etop_hw_receive(struct ltq_etop_chan *ch)
+static void ltq_etop_hw_receive(struct ltq_etop_chan *ch, struct list_head *lh)
 {
 	struct ltq_etop_priv *priv = netdev_priv(ch->netdev);
 	struct ltq_dma_desc *desc = &ch->dma.desc_base[ch->dma.desc];
@@ -143,7 +142,7 @@  ltq_etop_hw_receive(struct ltq_etop_chan *ch)
 
 	skb_put(skb, len);
 	skb->protocol = eth_type_trans(skb, ch->netdev);
-	netif_receive_skb(skb);
+	list_add_tail(&skb->list, lh);
 }
 
 static int
@@ -151,6 +150,7 @@  ltq_etop_poll_rx(struct napi_struct *napi, int budget)
 {
 	struct ltq_etop_chan *ch = container_of(napi,
 				struct ltq_etop_chan, napi);
+	LIST_HEAD(rx_list);
 	int work_done = 0;
 
 	while (work_done < budget) {
@@ -158,9 +158,12 @@  ltq_etop_poll_rx(struct napi_struct *napi, int budget)
 
 		if ((desc->ctl & (LTQ_DMA_OWN | LTQ_DMA_C)) != LTQ_DMA_C)
 			break;
-		ltq_etop_hw_receive(ch);
+		ltq_etop_hw_receive(ch, &rx_list);
 		work_done++;
 	}
+
+	netif_receive_skb_list(&rx_list);
+
 	if (work_done < budget) {
 		napi_complete_done(&ch->napi, work_done);
 		ltq_dma_ack_irq(&ch->dma);