From: Mina Almasry <almasrymina@google.com>
To: netdev@vger.kernel.org, linux-kernel@vger.kernel.org,
linux-kselftest@vger.kernel.org
Cc: Mina Almasry <almasrymina@google.com>,
"David S. Miller" <davem@davemloft.net>,
Eric Dumazet <edumazet@google.com>,
Jakub Kicinski <kuba@kernel.org>, Paolo Abeni <pabeni@redhat.com>,
Simon Horman <horms@kernel.org>,
Jesper Dangaard Brouer <hawk@kernel.org>,
Ilias Apalodimas <ilias.apalodimas@linaro.org>,
Shuah Khan <shuah@kernel.org>
Subject: [PATCH net-next v1 5/7] netmem: add netmem_prefetch
Date: Tue, 29 Oct 2024 20:45:39 +0000 [thread overview]
Message-ID: <20241029204541.1301203-6-almasrymina@google.com> (raw)
In-Reply-To: <20241029204541.1301203-1-almasrymina@google.com>
prefect(page) is a common thing to be called from drivers. Add
netmem_prefetch that can be called on generic netmem. Skips the prefetch
for net_iovs.
Signed-off-by: Mina Almasry <almasrymina@google.com>
---
include/net/netmem.h | 7 +++++++
1 file changed, 7 insertions(+)
diff --git a/include/net/netmem.h b/include/net/netmem.h
index 8a6e20be4b9d..923c47147aa8 100644
--- a/include/net/netmem.h
+++ b/include/net/netmem.h
@@ -171,4 +171,11 @@ static inline unsigned long netmem_get_dma_addr(netmem_ref netmem)
return __netmem_clear_lsb(netmem)->dma_addr;
}
+static inline void netmem_prefetch(netmem_ref netmem)
+{
+ if (netmem_is_net_iov(netmem))
+ return;
+
+ prefetch(netmem_to_page(netmem));
+}
#endif /* _NET_NETMEM_H */
--
2.47.0.163.g1226f6d8fa-goog
prev parent reply other threads:[~2024-10-29 20:45 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-10-29 20:45 [PATCH net-next v1 0/7] devmem TCP fixes Mina Almasry
2024-10-29 20:45 ` [PATCH net-next v1 1/7] net: page_pool: rename page_pool_alloc_netmem to *_netmems Mina Almasry
2024-10-29 20:45 ` [PATCH net-next v1 2/7] net: page_pool: create page_pool_alloc_netmem Mina Almasry
2024-11-01 11:14 ` Yunsheng Lin
2024-11-01 13:10 ` Mina Almasry
2024-11-03 14:35 ` Yunsheng Lin
2024-11-07 21:08 ` Mina Almasry
2024-10-29 20:45 ` [PATCH net-next v1 3/7] page_pool: Set `dma_sync` to false for devmem memory provider Mina Almasry
2024-10-29 20:45 ` [PATCH net-next v1 4/7] page_pool: disable sync for cpu for dmabuf " Mina Almasry
2024-10-29 20:45 ` Mina Almasry [this message]
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