@@ -122,6 +122,7 @@ bool mlx5e_xdp_handle(struct mlx5e_rq *rq, struct mlx5e_dma_info *di,
void *va, u16 *rx_headroom, u32 *len, bool xsk)
{
struct bpf_prog *prog = READ_ONCE(rq->xdp_prog);
+ struct xdp_umem *umem = rq->umem;
struct xdp_buff xdp;
u32 act;
int err;
@@ -138,8 +139,11 @@ bool mlx5e_xdp_handle(struct mlx5e_rq *rq, struct mlx5e_dma_info *di,
xdp.rxq = &rq->xdp_rxq;
act = bpf_prog_run_xdp(prog, &xdp);
- if (xsk)
- xdp.handle += xdp.data - xdp.data_hard_start;
+ if (xsk) {
+ u64 off = xdp.data - xdp.data_hard_start;
+
+ xdp.handle = xsk_umem_adjust_offset(umem, xdp.handle, off);
+ }
switch (act) {
case XDP_PASS:
*rx_headroom = xdp.data - xdp.data_hard_start;
@@ -24,7 +24,8 @@ int mlx5e_xsk_page_alloc_umem(struct mlx5e_rq *rq,
if (!xsk_umem_peek_addr_rq(umem, &handle))
return -ENOMEM;
- dma_info->xsk.handle = handle + rq->buff.umem_headroom;
+ dma_info->xsk.handle = xsk_umem_adjust_offset(umem, handle,
+ rq->buff.umem_headroom);
dma_info->xsk.data = xdp_umem_get_data(umem, dma_info->xsk.handle);
/* No need to add headroom to the DMA address. In striding RQ case, we
With the addition of the unaligned chunks option, we need to make sure we handle the offsets accordingly based on the mode we are currently running in. This patch modifies the driver to appropriately mask the address for each case. Note: This patch only adds support for the new offset handling. An additional patch that enables the unaligned chunks feature (makes mlx5e accept arbitrary frame sizes) will be added later and will apply on top of this patch. Signed-off-by: Kevin Laatz <kevin.laatz@intel.com> --- v3: - Use new helper function to handle offset v4: - fixed headroom addition to handle. Using xsk_umem_adjust_headroom() now. v5: - Fixed typo: handle_offset -> adjust_offset --- drivers/net/ethernet/mellanox/mlx5/core/en/xdp.c | 8 ++++++-- drivers/net/ethernet/mellanox/mlx5/core/en/xsk/rx.c | 3 ++- 2 files changed, 8 insertions(+), 3 deletions(-)