From: Yunsheng Lin <linyunsheng@huawei.com>
To: <davem@davemloft.net>, <kuba@kernel.org>
Cc: <alexander.duyck@gmail.com>, <linux@armlinux.org.uk>,
<mw@semihalf.com>, <linuxarm@openeuler.org>,
<yisen.zhuang@huawei.com>, <salil.mehta@huawei.com>,
<thomas.petazzoni@bootlin.com>, <hawk@kernel.org>,
<ilias.apalodimas@linaro.org>, <ast@kernel.org>,
<daniel@iogearbox.net>, <john.fastabend@gmail.com>,
<akpm@linux-foundation.org>, <peterz@infradead.org>,
<will@kernel.org>, <willy@infradead.org>, <vbabka@suse.cz>,
<fenghua.yu@intel.com>, <guro@fb.com>, <peterx@redhat.com>,
<feng.tang@intel.com>, <jgg@ziepe.ca>, <mcroce@microsoft.com>,
<hughd@google.com>, <jonathan.lemon@gmail.com>, <alobakin@pm.me>,
<willemb@google.com>, <wenxu@ucloud.cn>,
<cong.wang@bytedance.com>, <haokexin@gmail.com>,
<nogikh@google.com>, <elver@google.com>, <yhs@fb.com>,
<kpsingh@kernel.org>, <andrii@kernel.org>, <kafai@fb.com>,
<songliubraving@fb.com>, <netdev@vger.kernel.org>,
<linux-kernel@vger.kernel.org>, <bpf@vger.kernel.org>
Subject: [PATCH rfc v6 0/4] add frag page support in page pool
Date: Tue, 20 Jul 2021 11:35:41 +0800 [thread overview]
Message-ID: <1626752145-27266-1-git-send-email-linyunsheng@huawei.com> (raw)
This patchset adds frag page support in page pool and
enable skb's page frag recycling based on page pool in
hns3 drvier.
RFC v6:
1. Disable frag page support in system 32-bit arch and
64-bit DMA.
RFC v5:
1. Rename dma_addr[0] to pp_frag_count and adjust codes
according to the rename.
RFC v4:
1. Use the dma_addr[1] to store bias.
2. Default to a pagecnt_bias of PAGE_SIZE - 1.
3. other minor comment suggested by Alexander.
RFC v3:
1. Implement the semantic of "page recycling only wait for the
page pool user instead of all user of a page"
2. Support the frag allocation of different sizes
3. Merge patch 4 & 5 to one patch as it does not make sense to
use page_pool_dev_alloc_pages() API directly with elevated
refcnt.
4. other minor comment suggested by Alexander.
RFC v2:
1. Split patch 1 to more reviewable one.
2. Repurpose the lower 12 bits of the dma address to store the
pagecnt_bias as suggested by Alexander.
3. support recycling to pool->alloc for elevated refcnt case
too.
Yunsheng Lin (4):
page_pool: keep pp info as long as page pool owns the page
page_pool: add interface to manipulate frag count in page pool
page_pool: add frag page recycling support in page pool
net: hns3: support skb's frag page recycling based on page pool
drivers/net/ethernet/hisilicon/hns3/hns3_enet.c | 82 +++++++++++++++--
drivers/net/ethernet/hisilicon/hns3/hns3_enet.h | 3 +
drivers/net/ethernet/marvell/mvneta.c | 6 +-
drivers/net/ethernet/marvell/mvpp2/mvpp2_main.c | 2 +-
drivers/net/ethernet/ti/cpsw.c | 2 +-
drivers/net/ethernet/ti/cpsw_new.c | 2 +-
include/linux/mm_types.h | 18 ++--
include/linux/skbuff.h | 4 +-
include/net/page_pool.h | 65 +++++++++++---
net/core/page_pool.c | 112 +++++++++++++++++++++++-
10 files changed, 257 insertions(+), 39 deletions(-)
--
2.7.4
next reply other threads:[~2021-07-20 3:40 UTC|newest]
Thread overview: 17+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-07-20 3:35 Yunsheng Lin [this message]
2021-07-20 3:35 ` [PATCH rfc v6 1/4] page_pool: keep pp info as long as page pool owns the page Yunsheng Lin
2021-07-20 3:35 ` [PATCH rfc v6 2/4] page_pool: add interface to manipulate frag count in page pool Yunsheng Lin
2021-07-20 15:43 ` Alexander Duyck
2021-07-21 8:15 ` Yunsheng Lin
2021-07-21 14:06 ` Alexander Duyck
2021-07-22 8:07 ` Yunsheng Lin
2021-07-22 15:18 ` Alexander Duyck
2021-07-23 11:12 ` Yunsheng Lin
2021-07-23 16:08 ` Alexander Duyck
2021-07-24 13:07 ` Yunsheng Lin
2021-07-25 16:49 ` Alexander Duyck
2021-07-27 7:54 ` Yunsheng Lin
2021-07-27 18:38 ` Alexander Duyck
2021-08-02 9:17 ` Yunsheng Lin
2021-07-20 3:35 ` [PATCH rfc v6 3/4] page_pool: add frag page recycling support " Yunsheng Lin
2021-07-20 3:35 ` [PATCH rfc v6 4/4] net: hns3: support skb's frag page recycling based on " Yunsheng Lin
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