github-mirror/linux
1
0
Fork 0
mirror of https://github.com/torvalds/linux.git synced 2026-05-30 18:13:41 +02:00
Code Issues Actions Packages Projects Releases Wiki Activity Graph

net: fec: add pagepool_order to support variable page size

Browse Source 
Add a new pagepool_order member in the fec_enet_private struct
to allow dynamic configuration of page size for an instance. This
change clears the hardcoded page size assumptions.

Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Reviewed-by: Wei Fang <wei.fang@nxp.com>
Signed-off-by: Shenwei Wang <shenwei.wang@nxp.com>
Link: https://patch.msgid.link/20250910185211.721341-3-shenwei.wang@nxp.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
This commit is contained in:
Shenwei Wang 2025-09-10 13:52:07 -05:00 committed by Jakub Kicinski
parent ec2a1681ed
commit 29e6d5f89e
2 changed files with 5 additions and 2 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

1
drivers/net/ethernet/freescale/fec.h
View File

@ -620,6 +620,7 @@ struct fec_enet_private {
unsigned int total_tx_ring_size;
unsigned int total_rx_ring_size;
unsigned int max_buf_size;
unsigned int pagepool_order;
struct platform_device *pdev;

6
drivers/net/ethernet/freescale/fec_main.c
View File

@ -1783,7 +1783,7 @@ fec_enet_rx_queue(struct net_device *ndev, u16 queue_id, int budget)
* These get messed up if we get called due to a busy condition.
*/
bdp = rxq->bd.cur;
xdp_init_buff(&xdp, PAGE_SIZE, &rxq->xdp_rxq);
xdp_init_buff(&xdp, PAGE_SIZE << fep->pagepool_order, &rxq->xdp_rxq);
while (!((status = fec16_to_cpu(bdp->cbd_sc)) & BD_ENET_RX_EMPTY)) {
@ -1853,7 +1853,8 @@ fec_enet_rx_queue(struct net_device *ndev, u16 queue_id, int budget)
* include that when passing upstream as it messes up
* bridging applications.
*/
skb = build_skb(page_address(page), PAGE_SIZE);
skb = build_skb(page_address(page),
PAGE_SIZE << fep->pagepool_order);
if (unlikely(!skb)) {
page_pool_recycle_direct(rxq->page_pool, page);
ndev->stats.rx_dropped++;
@ -4563,6 +4564,7 @@ fec_probe(struct platform_device *pdev)
fec_enet_clk_enable(ndev, false);
pinctrl_pm_select_sleep_state(&pdev->dev);
fep->pagepool_order = 0;
fep->max_buf_size = PKT_MAXBUF_SIZE;
ndev->max_mtu = fep->max_buf_size - ETH_HLEN - ETH_FCS_LEN;