From 1580cbcbfe770b0a7fb76735c1a601483335c1c2 Mon Sep 17 00:00:00 2001 From: Jakub Kicinski Date: Fri, 12 Apr 2024 07:14:31 -0700 Subject: net: netdevsim: add some fake page pool use Add very basic page pool use so that we can exercise the netlink uAPI in a selftest. Page pool gets created on open, destroyed on close. But we control allocating of a single page thru debugfs. This page may survive past the page pool itself so that we can test orphaned page pools. Link: https://lore.kernel.org/r/20240412141436.828666-2-kuba@kernel.org Signed-off-by: Jakub Kicinski --- drivers/net/netdevsim/netdevsim.h | 4 ++++ 1 file changed, 4 insertions(+) (limited to 'drivers/net/netdevsim/netdevsim.h') diff --git a/drivers/net/netdevsim/netdevsim.h b/drivers/net/netdevsim/netdevsim.h index 553c4b9b4f63..7664ab823e29 100644 --- a/drivers/net/netdevsim/netdevsim.h +++ b/drivers/net/netdevsim/netdevsim.h @@ -125,6 +125,10 @@ struct netdevsim { struct debugfs_u32_array dfs_ports[2]; } udp_ports; + struct page_pool *pp; + struct page *page; + struct dentry *pp_dfs; + struct nsim_ethtool ethtool; struct netdevsim __rcu *peer; }; -- cgit v1.2.3 From 3762ec05a9fbda16aaaa2568df679ab8ad13f38d Mon Sep 17 00:00:00 2001 From: David Wei Date: Tue, 7 May 2024 09:32:27 -0700 Subject: netdevsim: add NAPI support Add NAPI support to netdevim, similar to veth. * Add a nsim_rq rx queue structure to hold a NAPI instance and a skb queue. * During xmit, store the skb in the peer skb queue and schedule NAPI. * During napi_poll(), drain the skb queue and pass up the stack. * Add assoc between rxq and NAPI instance using netif_queue_set_napi(). Signed-off-by: David Wei Link: https://lore.kernel.org/r/20240507163228.2066817-2-dw@davidwei.uk Signed-off-by: Jakub Kicinski --- drivers/net/netdevsim/netdevsim.h | 8 +++++++- 1 file changed, 7 insertions(+), 1 deletion(-) (limited to 'drivers/net/netdevsim/netdevsim.h') diff --git a/drivers/net/netdevsim/netdevsim.h b/drivers/net/netdevsim/netdevsim.h index 7664ab823e29..bf02efa10956 100644 --- a/drivers/net/netdevsim/netdevsim.h +++ b/drivers/net/netdevsim/netdevsim.h @@ -90,11 +90,18 @@ struct nsim_ethtool { struct ethtool_fecparam fec; }; +struct nsim_rq { + struct napi_struct napi; + struct sk_buff_head skb_queue; + struct page_pool *page_pool; +}; + struct netdevsim { struct net_device *netdev; struct nsim_dev *nsim_dev; struct nsim_dev_port *nsim_dev_port; struct mock_phc *phc; + struct nsim_rq *rq; u64 tx_packets; u64 tx_bytes; @@ -125,7 +132,6 @@ struct netdevsim { struct debugfs_u32_array dfs_ports[2]; } udp_ports; - struct page_pool *pp; struct page *page; struct dentry *pp_dfs; -- cgit v1.2.3