This patch enables launch time support to XDP zero copy via XDP Tx
metadata framework.
Signed-off-by: Song Yoong Siang <yoong.siang.song@xxxxxxxxx>
---
drivers/net/ethernet/stmicro/stmmac/stmmac.h | 2 ++
drivers/net/ethernet/stmicro/stmmac/stmmac_main.c | 13 +++++++++++++
2 files changed, 15 insertions(+)
diff --git a/drivers/net/ethernet/stmicro/stmmac/stmmac.h b/drivers/net/ethernet/stmicro/stmmac/stmmac.h
index 686c94c2e8a7..e8538af6e207 100644
--- a/drivers/net/ethernet/stmicro/stmmac/stmmac.h
+++ b/drivers/net/ethernet/stmicro/stmmac/stmmac.h
@@ -105,6 +105,8 @@ struct stmmac_metadata_request {
struct stmmac_priv *priv;
struct dma_desc *tx_desc;
bool *set_ic;
+ struct dma_edesc *edesc;
+ int tbs;
};
struct stmmac_xsk_tx_complete {
diff --git a/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c b/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c
index c2ac88aaffed..c33517d3850a 100644
--- a/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c
+++ b/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c
@@ -2465,9 +2465,20 @@ static u64 stmmac_xsk_fill_timestamp(void *_priv)
return 0;
}
+static void stmmac_xsk_request_launch_time(u64 launch_time, void *_priv)
+{
+ struct stmmac_metadata_request *meta_req = _priv;
+ struct timespec64 ts = ns_to_timespec64(launch_time);
+
+ if ((meta_req->tbs & STMMAC_TBS_EN) && launch_time > 0)
+ stmmac_set_desc_tbs(meta_req->priv, meta_req->edesc, ts.tv_sec,
+ ts.tv_nsec);
+}
+
static const struct xsk_tx_metadata_ops stmmac_xsk_tx_metadata_ops = {
.tmo_request_timestamp = stmmac_xsk_request_timestamp,
.tmo_fill_timestamp = stmmac_xsk_fill_timestamp,
+ .tmo_request_launch_time = stmmac_xsk_request_launch_time,
};
static bool stmmac_xdp_xmit_zc(struct stmmac_priv *priv, u32 queue, u32 budget)
@@ -2545,6 +2556,8 @@ static bool stmmac_xdp_xmit_zc(struct stmmac_priv *priv, u32 queue, u32 budget)
meta_req.priv = priv;
meta_req.tx_desc = tx_desc;
meta_req.set_ic = &set_ic;
+ meta_req.tbs = tx_q->tbs;
+ meta_req.edesc = &tx_q->dma_entx[entry];
xsk_tx_metadata_request(meta, &stmmac_xsk_tx_metadata_ops,
&meta_req);
if (set_ic) {
--
2.34.1
