diff options
Diffstat (limited to 'net')
| -rw-r--r-- | net/core/devmem.c | 10 | ||||
| -rw-r--r-- | net/core/page_pool.c | 12 |
2 files changed, 13 insertions, 9 deletions
diff --git a/net/core/devmem.c b/net/core/devmem.c index 11b91c12ee11..0b6ed7525b22 100644 --- a/net/core/devmem.c +++ b/net/core/devmem.c @@ -331,11 +331,11 @@ int mp_dmabuf_devmem_init(struct page_pool *pool) if (!binding) return -EINVAL; - if (!pool->dma_map) - return -EOPNOTSUPP; - - if (pool->dma_sync) - return -EOPNOTSUPP; + /* dma-buf dma addresses do not need and should not be used with + * dma_sync_for_cpu/device. Force disable dma_sync. + */ + pool->dma_sync = false; + pool->dma_sync_for_cpu = false; if (pool->p.order != 0) return -E2BIG; diff --git a/net/core/page_pool.c b/net/core/page_pool.c index 8292e3edbbfd..e07ad7315955 100644 --- a/net/core/page_pool.c +++ b/net/core/page_pool.c @@ -201,6 +201,7 @@ static int page_pool_init(struct page_pool *pool, memcpy(&pool->slow, ¶ms->slow, sizeof(pool->slow)); pool->cpuid = cpuid; + pool->dma_sync_for_cpu = true; /* Validate only known flags were used */ if (pool->slow.flags & ~PP_FLAG_ALL) @@ -287,6 +288,9 @@ static int page_pool_init(struct page_pool *pool, } if (pool->mp_priv) { + if (!pool->dma_map || !pool->dma_sync) + return -EOPNOTSUPP; + err = mp_dmabuf_devmem_init(pool); if (err) { pr_warn("%s() mem-provider init failed %d\n", __func__, @@ -574,7 +578,7 @@ static noinline netmem_ref __page_pool_alloc_pages_slow(struct page_pool *pool, /* For using page_pool replace: alloc_pages() API calls, but provide * synchronization guarantee for allocation side. */ -netmem_ref page_pool_alloc_netmem(struct page_pool *pool, gfp_t gfp) +netmem_ref page_pool_alloc_netmems(struct page_pool *pool, gfp_t gfp) { netmem_ref netmem; @@ -590,11 +594,11 @@ netmem_ref page_pool_alloc_netmem(struct page_pool *pool, gfp_t gfp) netmem = __page_pool_alloc_pages_slow(pool, gfp); return netmem; } -EXPORT_SYMBOL(page_pool_alloc_netmem); +EXPORT_SYMBOL(page_pool_alloc_netmems); struct page *page_pool_alloc_pages(struct page_pool *pool, gfp_t gfp) { - return netmem_to_page(page_pool_alloc_netmem(pool, gfp)); + return netmem_to_page(page_pool_alloc_netmems(pool, gfp)); } EXPORT_SYMBOL(page_pool_alloc_pages); ALLOW_ERROR_INJECTION(page_pool_alloc_pages, NULL); @@ -992,7 +996,7 @@ netmem_ref page_pool_alloc_frag_netmem(struct page_pool *pool, } if (!netmem) { - netmem = page_pool_alloc_netmem(pool, gfp); + netmem = page_pool_alloc_netmems(pool, gfp); if (unlikely(!netmem)) { pool->frag_page = 0; return 0; |