From patchwork Mon Aug 5 21:25:18 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Mina Almasry X-Patchwork-Id: 13754083 Received: from mail-yb1-f202.google.com (mail-yb1-f202.google.com [209.85.219.202]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id F0475170A32 for ; Mon, 5 Aug 2024 21:25:48 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.219.202 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1722893151; cv=none; b=RBTgJ2uUzEusZ961wjlyBQh4Y3qF/HK92Jn9d3ko15H2K4BaaTl41f7FzZFZRYL3ch2FTFMg2r0KLsf/EIQ/JSwy8KUogv3XNHfRdCi0xqpN4CrY84GDBaBGGR1rpNcgLyY/5Ge6UyCfWOa/V02+VQzSWkxdFl6jlGhaBtThXyc= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1722893151; c=relaxed/simple; bh=SEtUnK8+OM0gH2BEoVfPNmeqZZM4a6RSsugC4rHdHVk=; h=Date:In-Reply-To:Mime-Version:References:Message-ID:Subject:From: To:Cc:Content-Type; b=R/GC4iOszrkK61BSFJ5HdSU+kj7X7h+r8yJL6q4IAyyjXPmszMbLo1IzDmeY5mUk06JYvEXHmhaLZDl6hjWJYc8AtmabmjjwBBe+fX1ByZYpLATJ8nqcWNBKH6NG1YCZeTjcJdUB2zbFmohVq3rJMCUBhDBtUHQGZXQ3bMYceDE= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=reject dis=none) header.from=google.com; spf=pass smtp.mailfrom=flex--almasrymina.bounces.google.com; dkim=pass (2048-bit key) header.d=google.com header.i=@google.com header.b=N26J2b1B; arc=none smtp.client-ip=209.85.219.202 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=reject dis=none) header.from=google.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=flex--almasrymina.bounces.google.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=google.com header.i=@google.com header.b="N26J2b1B" Received: by mail-yb1-f202.google.com with SMTP id 3f1490d57ef6-e0baf2a2ed1so9815095276.1 for ; Mon, 05 Aug 2024 14:25:48 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=20230601; t=1722893148; x=1723497948; darn=vger.kernel.org; h=cc:to:from:subject:message-id:references:mime-version:in-reply-to :date:from:to:cc:subject:date:message-id:reply-to; bh=QW6znr6cHM2mLazuqMq5oZLiE4imdB81XfOOoj9JCCA=; b=N26J2b1BNxGeUfJNA9NH4EXOPLLrTH+ZzQQk9ss/0XrG0KmwM3jodq3rYSlyxXX6Bh Z80RIu/NPK/3QmhX0xgzeyFbGFPAH5vZTFsVCYDeDQ5kkSHa6S4ZNZxIoIWDI9NIuMVn yvLO/RH9xkYs8JeRDaIUydQAohrn6yOVz8fOblreBnNkPUydLjFaJcuu5Gx9fAVNviTn 2qreSp6kwsGfz+yvOSx9SgBf7Fv8ZX+5L3ufzp+ttciOuY9ATsrAuOVxPvigiWKqL4Ed pCIEHi8NySaqMaA7egfcqlaZZ2AxMVzMivvtqB349edeOmjR/Z5hY4LnuF3E24Dp/ump KryA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1722893148; x=1723497948; h=cc:to:from:subject:message-id:references:mime-version:in-reply-to :date:x-gm-message-state:from:to:cc:subject:date:message-id:reply-to; bh=QW6znr6cHM2mLazuqMq5oZLiE4imdB81XfOOoj9JCCA=; b=pplhKBeVxJ7lrjQvPBoH/xSC278YgnRhk0mVEGP0H0DMWe5OZphUeahL+Qqo70+/hr zw+/76sLlLTCPuuSOiEJfH3G/rEpsHzWfr8Lf7uXyt5aA7zt8HdlQbmne6hcEaiD3Act Z0gFVbOpPwy4R7zeyO6YrvgG7C3siwIRKYFTrr9aK4YcE1yPA6UIf2iVXXRSH3TwqqD9 lROCCs60vqrH3f3SXS2vQA+7eIkgh5pM6gRvs+9I/fxRICmemIPVD1yGzU+TIchIRGpp x8wHQ77uS95wICZPJD8tc9AiqcLTw6u4yad4s5k85HmAypOYfFWJDOjhKf+xnXHsBWjF EZjw== X-Forwarded-Encrypted: i=1; AJvYcCX9CylzulmGvTxeQLRc3xeA0iMm5eOAA74n2ROzeAotDAzjbx5hg+JRyPbZzL9z51cnVppSpgt2TlQKHLfVkm0wRjNmZA0Vmh++Z2/47qyh X-Gm-Message-State: AOJu0YwriXerk9y7yc3q4jZirzqyYWgVCa84vGP71tNg3LYfzbOKKMPX 7BKwyOyhpkI3sYrCjt0/lxC0G3R51WQ5fXbZ51BO3j6AuBYsUUfD3FkDrvXzfpISda0EQpRPvMF lgbqJPAqvG8YWpj23gWphbA== X-Google-Smtp-Source: AGHT+IGM0VQldIgmGiiNcNzkJRa+4J5mNVfUsyPhF6k6J1KRuCnYcR6TSrWhZH6dNRSaQlr0Wgsdage9M4NVq4x2xw== X-Received: from almasrymina.c.googlers.com ([fda3:e722:ac3:cc00:20:ed76:c0a8:4bc5]) (user=almasrymina job=sendgmr) by 2002:a05:6902:154e:b0:e0b:acc7:b1fd with SMTP id 3f1490d57ef6-e0bdeb3e00bmr340566276.4.1722893147755; Mon, 05 Aug 2024 14:25:47 -0700 (PDT) Date: Mon, 5 Aug 2024 21:25:18 +0000 In-Reply-To: <20240805212536.2172174-1-almasrymina@google.com> Precedence: bulk X-Mailing-List: linux-kselftest@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: Mime-Version: 1.0 References: <20240805212536.2172174-1-almasrymina@google.com> X-Mailer: git-send-email 2.46.0.rc2.264.g509ed76dc8-goog Message-ID: <20240805212536.2172174-6-almasrymina@google.com> Subject: [PATCH net-next v18 05/14] page_pool: move dmaddr helpers to .c file From: Mina Almasry To: netdev@vger.kernel.org, linux-kernel@vger.kernel.org, linux-doc@vger.kernel.org, linux-alpha@vger.kernel.org, linux-mips@vger.kernel.org, linux-parisc@vger.kernel.org, sparclinux@vger.kernel.org, linux-trace-kernel@vger.kernel.org, linux-arch@vger.kernel.org, linux-kselftest@vger.kernel.org, bpf@vger.kernel.org, linux-media@vger.kernel.org, dri-devel@lists.freedesktop.org Cc: Mina Almasry , Donald Hunter , Jakub Kicinski , "David S. Miller" , Eric Dumazet , Paolo Abeni , Jonathan Corbet , Richard Henderson , Ivan Kokshaysky , Matt Turner , Thomas Bogendoerfer , "James E.J. Bottomley" , Helge Deller , Andreas Larsson , Jesper Dangaard Brouer , Ilias Apalodimas , Steven Rostedt , Masami Hiramatsu , Mathieu Desnoyers , Arnd Bergmann , Steffen Klassert , Herbert Xu , David Ahern , Willem de Bruijn , Shuah Khan , Sumit Semwal , " =?utf-8?q?Christian_K=C3=B6nig?= " , Bagas Sanjaya , Christoph Hellwig , Nikolay Aleksandrov , Taehee Yoo , Pavel Begunkov , David Wei , Jason Gunthorpe , Yunsheng Lin , Shailend Chand , Harshitha Ramamurthy , Shakeel Butt , Jeroen de Borst , Praveen Kaligineedi These helpers are used for setup and init of buffers, and their implementation need not be static inline in the header file. Moving the implementation to the .c file allows us to hide netmem implementation details in internal header files rather than the public file. Signed-off-by: Mina Almasry --- include/net/page_pool/helpers.h | 30 ++---------------------------- net/core/page_pool.c | 31 +++++++++++++++++++++++++++++++ 2 files changed, 33 insertions(+), 28 deletions(-) diff --git a/include/net/page_pool/helpers.h b/include/net/page_pool/helpers.h index 2b43a893c619d..8f27ecc00bb16 100644 --- a/include/net/page_pool/helpers.h +++ b/include/net/page_pool/helpers.h @@ -399,17 +399,7 @@ static inline void page_pool_free_va(struct page_pool *pool, void *va, page_pool_put_page(pool, virt_to_head_page(va), -1, allow_direct); } -static inline dma_addr_t page_pool_get_dma_addr_netmem(netmem_ref netmem) -{ - struct page *page = netmem_to_page(netmem); - - dma_addr_t ret = page->dma_addr; - - if (PAGE_POOL_32BIT_ARCH_WITH_64BIT_DMA) - ret <<= PAGE_SHIFT; - - return ret; -} +dma_addr_t page_pool_get_dma_addr_netmem(netmem_ref netmem); /** * page_pool_get_dma_addr() - Retrieve the stored DMA address. @@ -423,23 +413,7 @@ static inline dma_addr_t page_pool_get_dma_addr(const struct page *page) return page_pool_get_dma_addr_netmem(page_to_netmem((struct page *)page)); } -static inline bool page_pool_set_dma_addr_netmem(netmem_ref netmem, - dma_addr_t addr) -{ - struct page *page = netmem_to_page(netmem); - - if (PAGE_POOL_32BIT_ARCH_WITH_64BIT_DMA) { - page->dma_addr = addr >> PAGE_SHIFT; - - /* We assume page alignment to shave off bottom bits, - * if this "compression" doesn't work we need to drop. - */ - return addr != (dma_addr_t)page->dma_addr << PAGE_SHIFT; - } - - page->dma_addr = addr; - return false; -} +bool page_pool_set_dma_addr_netmem(netmem_ref netmem, dma_addr_t addr); /** * page_pool_dma_sync_for_cpu - sync Rx page for CPU after it's written by HW diff --git a/net/core/page_pool.c b/net/core/page_pool.c index 2abe6e919224d..a032f731d4146 100644 --- a/net/core/page_pool.c +++ b/net/core/page_pool.c @@ -1099,3 +1099,34 @@ void page_pool_update_nid(struct page_pool *pool, int new_nid) } } EXPORT_SYMBOL(page_pool_update_nid); + +dma_addr_t page_pool_get_dma_addr_netmem(netmem_ref netmem) +{ + struct page *page = netmem_to_page(netmem); + + dma_addr_t ret = page->dma_addr; + + if (PAGE_POOL_32BIT_ARCH_WITH_64BIT_DMA) + ret <<= PAGE_SHIFT; + + return ret; +} +EXPORT_SYMBOL(page_pool_get_dma_addr_netmem); + +bool page_pool_set_dma_addr_netmem(netmem_ref netmem, dma_addr_t addr) +{ + struct page *page = netmem_to_page(netmem); + + if (PAGE_POOL_32BIT_ARCH_WITH_64BIT_DMA) { + page->dma_addr = addr >> PAGE_SHIFT; + + /* We assume page alignment to shave off bottom bits, + * if this "compression" doesn't work we need to drop. + */ + return addr != (dma_addr_t)page->dma_addr << PAGE_SHIFT; + } + + page->dma_addr = addr; + return false; +} +EXPORT_SYMBOL(page_pool_set_dma_addr_netmem);