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bnxt: Detach page from page pool before sending up the stack 

[ Upstream commit 3071c51783 ]

When running in XDP mode, pages come from the page pool, and should
be freed back to the same pool or specifically detached.  Currently,
when the driver re-initializes, the page pool destruction is delayed
forever since it thinks there are oustanding pages.

Fixes: 322b87ca55 ("bnxt_en: add page_pool support")
Signed-off-by: Jonathan Lemon <jonathan.lemon@gmail.com>
Reviewed-by: Andy Gospodarek <gospo@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
5.4-rM2-2.2.x-imx-squashed
Jonathan Lemon 2020-01-09 11:35:42 -08:00 committed by Greg Kroah-Hartman
parent 1e703d621b
commit b075c29e81
1 changed files with 1 additions and 0 deletions
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drivers/net/ethernet/broadcom/bnxt/bnxt.c
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@ -942,6 +942,7 @@ static struct sk_buff *bnxt_rx_page_skb(struct bnxt *bp,
dma_addr -= bp->rx_dma_offset;
dma_unmap_page_attrs(&bp->pdev->dev, dma_addr, PAGE_SIZE, bp->rx_dir,
DMA_ATTR_WEAK_ORDERING);
page_pool_release_page(rxr->page_pool, page);
if (unlikely(!payload))
payload = eth_get_headlen(bp->dev, data_ptr, len);