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Merge branch 'i40e-ice-af_xdp-zc-fixes'

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Björn Töpel says:

====================
i40e/ice AF_XDP ZC fixes

This series address two crashes in the AF_XDP zero-copy mode for ice
and i40e. More details in each individual the commit message.
====================

Link: https://lore.kernel.org/r/20201211145712.72957-1-bjorn.topel@gmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
This commit is contained in:
Jakub Kicinski 2020-12-16 10:51:09 -08:00
commit ec58c75a85
2 changed files with 8 additions and 2 deletions
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5
drivers/net/ethernet/intel/i40e/i40e_xsk.c
View File

@ -220,8 +220,11 @@ bool i40e_alloc_rx_buffers_zc(struct i40e_ring *rx_ring, u16 count)
} while (count);
no_buffers:
if (rx_ring->next_to_use != ntu)
if (rx_ring->next_to_use != ntu) {
/* clear the status bits for the next_to_use descriptor */
rx_desc->wb.qword1.status_error_len = 0;
i40e_release_rx_desc(rx_ring, ntu);
}
return ok;
}

5
drivers/net/ethernet/intel/ice/ice_xsk.c
View File

@ -446,8 +446,11 @@ bool ice_alloc_rx_bufs_zc(struct ice_ring *rx_ring, u16 count)
}
} while (--count);
if (rx_ring->next_to_use != ntu)
if (rx_ring->next_to_use != ntu) {
/* clear the status bits for the next_to_use descriptor */
rx_desc->wb.status_error0 = 0;
ice_release_rx_desc(rx_ring, ntu);
}
return ret;
}