diff options
| author | Alexander Lobakin <aleksander.lobakin@intel.com> | 2025-06-12 18:02:31 +0200 |
|---|---|---|
| committer | Tony Nguyen <anthony.l.nguyen@intel.com> | 2025-06-16 11:40:15 -0700 |
| commit | 40e846d122df9b299e700ec86d01ef647fc0b09f (patch) | |
| tree | da6b9259b1ea62f844ce8a6e8243b14182acc91d /drivers/net/ethernet/intel/libeth/xsk.c | |
| parent | b3ad8450b4dc46c4ab0641f665068fd2a4d1adba (diff) | |
libeth: xsk: add XSk xmit functions
Reuse core sending functions to send XSk xmit frames.
Both metadata and no metadata pools/driver are supported. libeth_xdp
also provides generic XSk metadata ops, currently with the checksum
offload only and for cases when HW doesn't require supplying L3/L4
checksum offsets. Drivers are free to pass their own ops.
&libeth_xdp_tx_bulk is not used here as it would be redundant;
pool->tx_descs are accessed directly.
Fake "libeth_xsktmo" is needed to hide implementation details from the
drivers when they want to use the generic ops: the original struct is
defined in the same file where dev->xsk_tx_metadata_ops gets set to
avoid duplication of slowpath; at the same time; XSk xmit functions
use local "fast" copy to inline XMO callbacks.
Tx descriptor filling loop is unrolled by 8.
Suggested-by: Maciej Fijalkowski <maciej.fijalkowski@intel.com> # optimizations
Signed-off-by: Alexander Lobakin <aleksander.lobakin@intel.com>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
Diffstat (limited to 'drivers/net/ethernet/intel/libeth/xsk.c')
| -rw-r--r-- | drivers/net/ethernet/intel/libeth/xsk.c | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/drivers/net/ethernet/intel/libeth/xsk.c b/drivers/net/ethernet/intel/libeth/xsk.c index fba6d7a025b0..f09e1940183b 100644 --- a/drivers/net/ethernet/intel/libeth/xsk.c +++ b/drivers/net/ethernet/intel/libeth/xsk.c @@ -18,6 +18,12 @@ void __cold libeth_xsk_tx_return_bulk(const struct libeth_xdp_tx_frame *bq, libeth_xsk_buff_free_slow(bq[i].xsk); } +/* XSk TMO */ + +const struct xsk_tx_metadata_ops libeth_xsktmo_slow = { + .tmo_request_checksum = libeth_xsktmo_req_csum, +}; + /* Rx polling path */ /** |