Messages in this thread Patch in this message | ![/](/images/icornerl.gif) | | From | Yunjian Wang <> | Subject | [PATCH net-next v2 1/3] xsk: Remove non-zero 'dma_page' check in xp_assign_dev | Date | Wed, 28 Feb 2024 19:05:25 +0800 |
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Now dma mappings are used by the physical NICs. However the vNIC maybe do not need them. So remove non-zero 'dma_page' check in xp_assign_dev.
Signed-off-by: Yunjian Wang <wangyunjian@huawei.com> --- net/xdp/xsk_buff_pool.c | 7 ------- 1 file changed, 7 deletions(-)
diff --git a/net/xdp/xsk_buff_pool.c b/net/xdp/xsk_buff_pool.c index ce60ecd48a4d..a5af75b1f43c 100644 --- a/net/xdp/xsk_buff_pool.c +++ b/net/xdp/xsk_buff_pool.c @@ -219,16 +219,9 @@ int xp_assign_dev(struct xsk_buff_pool *pool, if (err) goto err_unreg_pool; - if (!pool->dma_pages) { - WARN(1, "Driver did not DMA map zero-copy buffers"); - err = -EINVAL; - goto err_unreg_xsk; - } pool->umem->zc = true; return 0; -err_unreg_xsk: - xp_disable_drv_zc(pool); err_unreg_pool: if (!force_zc) err = 0; /* fallback to copy mode */ -- 2.41.0
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