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[v4,net-next,3/5] net: mvneta: add xdp tx return bulking support

Message ID c2242f62260b90d5961d6587cdcad067d891ad31.1604686496.git.lorenzo@kernel.org
State Changes Requested
Delegated to: David Miller
Headers show
Series xdp: introduce bulking for page_pool tx return path | expand

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jkicinski/cover_letter success Link
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jkicinski/tree_selection success Clearly marked for net-next
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jkicinski/source_inline success Was 0 now: 0
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jkicinski/module_param success Was 0 now: 0
jkicinski/build_32bit success Errors and warnings before: 2 this patch: 2
jkicinski/kdoc success Errors and warnings before: 0 this patch: 0
jkicinski/verify_fixes success Link
jkicinski/checkpatch success total: 0 errors, 0 warnings, 0 checks, 21 lines checked
jkicinski/build_allmodconfig_warn success Errors and warnings before: 2 this patch: 2
jkicinski/header_inline success Link
jkicinski/stable success Stable not CCed

Commit Message

Lorenzo Bianconi Nov. 6, 2020, 6:19 p.m. UTC
Convert mvneta driver to xdp_return_frame_bulk APIs.

XDP_REDIRECT (upstream codepath): 275Kpps
XDP_REDIRECT (upstream codepath + bulking APIs): 284Kpps

Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
---
 drivers/net/ethernet/marvell/mvneta.c | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)
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Patch

diff --git a/drivers/net/ethernet/marvell/mvneta.c b/drivers/net/ethernet/marvell/mvneta.c
index 54b0bf574c05..43ab8a73900e 100644
--- a/drivers/net/ethernet/marvell/mvneta.c
+++ b/drivers/net/ethernet/marvell/mvneta.c
@@ -1834,8 +1834,10 @@  static void mvneta_txq_bufs_free(struct mvneta_port *pp,
 				 struct netdev_queue *nq, bool napi)
 {
 	unsigned int bytes_compl = 0, pkts_compl = 0;
+	struct xdp_frame_bulk bq;
 	int i;
 
+	bq.xa = NULL;
 	for (i = 0; i < num; i++) {
 		struct mvneta_tx_buf *buf = &txq->buf[txq->txq_get_index];
 		struct mvneta_tx_desc *tx_desc = txq->descs +
@@ -1857,9 +1859,10 @@  static void mvneta_txq_bufs_free(struct mvneta_port *pp,
 			if (napi && buf->type == MVNETA_TYPE_XDP_TX)
 				xdp_return_frame_rx_napi(buf->xdpf);
 			else
-				xdp_return_frame(buf->xdpf);
+				xdp_return_frame_bulk(buf->xdpf, &bq);
 		}
 	}
+	xdp_flush_frame_bulk(&bq);
 
 	netdev_tx_completed_queue(nq, pkts_compl, bytes_compl);
 }