Commit 85720e04 authored by Jiawen Wu's avatar Jiawen Wu Committed by Paolo Abeni
Browse files

net: libwx: fix the creation of page_pool 



'rx_ring->size' means the count of ring descriptors multiplied by the
size of one descriptor. When increasing the count of ring descriptors,
it may exceed the limit of pool size.

[ 864.209610] page_pool_create_percpu() gave up with errno -7
[ 864.209613] txgbe 0000:11:00.0: Page pool creation failed: -7

Fix to set the pool_size to the count of ring descriptors.

Fixes: 850b9711 ("net: libwx: Allocate Rx and Tx resources")
Cc: stable@vger.kernel.org
Signed-off-by: default avatarJiawen Wu <jiawenwu@trustnetic.com>
Reviewed-by: default avatarSimon Horman <horms@kernel.org>
Reviewed-by: default avatarMina Almasry <almasrymina@google.com>
Link: https://patch.msgid.link/434C72BFB40E350A+20250625023924.21821-1-jiawenwu@trustnetic.com


Signed-off-by: default avatarPaolo Abeni <pabeni@redhat.com>
parent 8d89661a

drivers/net/ethernet/wangxun/libwx/wx_lib.c

+1 −1
Original line number Diff line number Diff line
@@ -2623,7 +2623,7 @@ static int wx_alloc_page_pool(struct wx_ring *rx_ring) 
	struct page_pool_params pp_params = {

		.flags = PP_FLAG_DMA_MAP | PP_FLAG_DMA_SYNC_DEV,

		.order = 0,

		.pool_size = rx_ring->size,

		.pool_size = rx_ring->count,

		.nid = dev_to_node(rx_ring->dev),

		.dev = rx_ring->dev,

		.dma_dir = DMA_FROM_DEVICE,