Re: [net-next v1 07/16] netdev: netdevice devmem allocator
flat view
From: David Ahern <dsahern@kernel.org>
Date: 2023-12-08 17:56:48
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On 12/7/23 5:52 PM, Mina Almasry wrote:
quoted hunk ↗ jump to hunk
diff --git a/net/core/dev.c b/net/core/dev.c index b8c8be5a912e..30667e4c3b95 100644 --- a/net/core/dev.c +++ b/net/core/dev.c@@ -2120,6 +2120,41 @@ static int netdev_restart_rx_queue(struct net_device *dev, int rxq_idx) return err; } +struct page_pool_iov *netdev_alloc_dmabuf(struct netdev_dmabuf_binding *binding) +{ + struct dmabuf_genpool_chunk_owner *owner; + struct page_pool_iov *ppiov; + unsigned long dma_addr; + ssize_t offset; + ssize_t index; + + dma_addr = gen_pool_alloc_owner(binding->chunk_pool, PAGE_SIZE,
Any reason not to allow allocation sizes other than PAGE_SIZE? e.g., 2048 for smaller MTUs or 8192 for larger ones. It can be a property of page_pool and constant across allocations vs allowing different size for each allocation.