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a6e4b9a6de
The zero-copy path reads TX metadata whenever the UMEM has metadata space,
even if the descriptor does not set XDP_TX_METADATA. Pass descriptor
options through the metadata helpers and ignore metadata unless the option
is set.
This does not fix the existing per-WQE metadata handling for mlx5 MPWQEs.
Only the descriptor that starts a session passes through
xsk_tx_metadata_request() and configures offload state shared by the batch.
Metadata on descriptors joining an open session is therefore not validated
and does not configure its requested offloads. In addition, a non-NULL
metadata pointer from such a descriptor is treated as a timestamp
completion request even when XDP_TXMD_FLAGS_TIMESTAMP is not set, so its
metadata union can be overwritten with an unrequested timestamp. Fixing
mixed metadata states within one MPWQE requires a separate change.
Fixes:
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||
|---|---|---|
| .. | ||
| e1000 | ||
| e1000e | ||
| fm10k | ||
| i40e | ||
| iavf | ||
| ice | ||
| idpf | ||
| igb | ||
| igbvf | ||
| igc | ||
| ixd | ||
| ixgbe | ||
| ixgbevf | ||
| libeth | ||
| libie | ||
| e100.c | ||
| Kconfig | ||
| Makefile | ||