[PATCH net-next v3 4/7] net: lan966x: Update rxq memory model

Horatiu Vultur
2022-11-21T21:25:02Z

By default the rxq memory model is MEM_TYPE_PAGE_SHARED but to be able
to reuse pages on the TX side, when the XDP action XDP_TX it is required
to update the memory model to PAGE_POOL.

Signed-off-by: Horatiu Vultur <horatiu.vultur@microchip.com>
---
.../net/ethernet/microchip/lan966x/lan966x_fdma.c | 14 ++++++++++++++
1 file changed, 14 insertions(+)

diff --git a/drivers/net/ethernet/microchip/lan966x/lan966x_fdma.c b/drivers/net/ethernet/microchip/lan966x/lan966x_fdma.c
index 384ed34197d58..483d1470c8362 100644
--- a/drivers/net/ethernet/microchip/lan966x/lan966x_fdma.c
+++ b/drivers/net/ethernet/microchip/lan966x/lan966x_fdma.c
@@ -78,8 +78,22 @@ static int lan966x_fdma_rx_alloc_page_pool(struct lan966x_rx *rx)
.max_len = rx->max_mtu -
SKB_DATA_ALIGN(sizeof(struct skb_shared_info)),
};
+ struct lan966x_port *port;
+ int i;

rx->page_pool = page_pool_create(&pp_params);
+
+ for (i = 0; i < lan966x->num_phys_ports; ++i) {
+ if (!lan966x->ports[i])
+ continue;
+
+ port = lan966x->ports[i];
+
+ xdp_rxq_info_unreg_mem_model(&port->xdp_rxq);
+ xdp_rxq_info_reg_mem_model(&port->xdp_rxq, MEM_TYPE_PAGE_POOL,
+ rx->page_pool);
+ }
+
return PTR_ERR_OR_ZERO(rx->page_pool);
}

--
2.38.0