-
Ilya Maximets authored
Tx code doesn't clear the descriptors' status after cleaning. So, if the budget is larger than number of used elems in a ring, some descriptors will be accounted twice and xsk_umem_complete_tx will move prod_tail far beyond the prod_head breaking the completion queue ring. Fix that by limiting the number of descriptors to clean by the number of used descriptors in the Tx ring. 'ixgbe_clean_xdp_tx_irq()' function refactored to look more like 'ixgbe_xsk_clean_tx_ring()' since we're allowed to directly use 'next_to_clean' and 'next_to_use' indexes. CC: stable@vger.kernel.org Fixes: 8221c5eb ("ixgbe: add AF_XDP zero-copy Tx support") Signed-off-by:
Ilya Maximets <i.maximets@samsung.com> Tested-by:
William Tu <u9012063@gmail.com> Tested-by:
Eelco Chaudron <echaudro@redhat.com> Signed-off-by:
Jeff Kirsher <jeffrey.t.kirsher@intel.com>
bf280c03