Mina Almasry 65249feb6b net: add support for skbs with unreadable frags ... For device memory TCP, we expect the skb headers to be available in host memory for access, and we expect the skb frags to be in device memory and unaccessible to the host. We expect there to be no mixing and matching of device memory frags (unaccessible) with host memory frags (accessible) in the same skb. Add a skb->devmem flag which indicates whether the frags in this skb are device memory frags or not. __skb_fill_netmem_desc() now checks frags added to skbs for net_iov, and marks the skb as skb->devmem accordingly. Add checks through the network stack to avoid accessing the frags of devmem skbs and avoid coalescing devmem skbs with non devmem skbs. Signed-off-by: Willem de Bruijn <willemb@google.com> Signed-off-by: Kaiyuan Zhang <kaiyuanz@google.com> Signed-off-by: Mina Almasry <almasrymina@google.com> Reviewed-by: Eric Dumazet <edumazet@google.com> Reviewed-by: Jakub Kicinski <kuba@kernel.org> Link: https://patch.msgid.link/20240910171458.219195-9-almasrymina@google.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>		2024-09-11 20:44:31 -07:00
..
bpf_sk_storage.c	netlink: introduce type-checking attribute iteration	2024-03-29 15:06:02 -07:00
datagram.c	net: add support for skbs with unreadable frags	2024-09-11 20:44:31 -07:00
dev_addr_lists_test.c	net: dev_addr_lists: move locking out of init/exit in kunit	2024-04-15 10:26:35 +01:00
dev_addr_lists.c	net: Correct spelling in net/core	2024-08-26 09:37:23 -07:00
dev_ioctl.c	netdevice: convert private flags > BIT(31) to bitfields	2024-09-03 11:36:43 +02:00
dev.c	net: add support for skbs with unreadable frags	2024-09-11 20:44:31 -07:00
dev.h	net: softnet_data: Make xmit per task.	2024-06-24 16:41:23 -07:00
devmem.c	memory-provider: dmabuf devmem memory provider	2024-09-11 20:44:31 -07:00
devmem.h	netdev: netdevice devmem allocator	2024-09-11 20:44:31 -07:00
drop_monitor.c	net: add rx_sk to trace_kfree_skb	2024-06-19 12:44:22 +01:00
dst_cache.c	net: dst_cache: add two DEBUG_NET warnings	2024-06-03 18:50:09 -07:00
dst.c
failover.c
fib_notifier.c
fib_rules.c	net: Correct spelling in net/core	2024-08-26 09:37:23 -07:00
filter.c	bpf: Unmask upper DSCP bits in __bpf_redirect_neigh_v4()	2024-08-31 17:44:51 +01:00
flow_dissector.c	net: flow_dissector: use DEBUG_NET_WARN_ON_ONCE	2024-07-18 10:52:17 +02:00
flow_offload.c
gen_estimator.c	net: use unrcu_pointer() helper	2024-06-06 11:52:52 +02:00
gen_stats.c
gro_cells.c	net: move netdev_max_backlog to net_hotdata	2024-03-07 21:12:42 -08:00
gro.c	net: support non paged skb frags	2024-09-11 20:44:31 -07:00
gso.c	net: introduce struct net_hotdata	2024-03-07 21:12:41 -08:00
hotdata.c	net: move sysctl_mem_pcpu_rsv to net_hotdata	2024-04-30 18:46:52 -07:00
hwbm.c
ieee8021q_helpers.c	net: add IEEE 802.1q specific helpers	2024-05-08 10:35:09 +01:00
link_watch.c	net: linkwatch: use system_unbound_wq	2024-08-06 12:12:53 -07:00
lwt_bpf.c	bpf: lwtunnel: Unmask upper DSCP bits in bpf_lwt_xmit_reroute()	2024-09-09 14:14:52 +01:00
lwtunnel.c
Makefile	netdev: support binding dma-buf to netdevice	2024-09-11 20:44:31 -07:00
mp_dmabuf_devmem.h	memory-provider: dmabuf devmem memory provider	2024-09-11 20:44:31 -07:00
neighbour.c	neighbour: delete redundant judgment statements	2024-08-23 14:27:45 +01:00
net_namespace.c	net: Initialise net.core sysctl defaults in preinit_net().	2024-08-03 22:38:45 +01:00
net_test.c	pfcp: always set pfcp metadata	2024-04-01 10:49:28 +01:00
net-procfs.c	net: make softnet_data.dropped an atomic_t	2024-04-01 11:28:32 +01:00
net-sysfs.c	net: sysfs: Fix weird usage of class's namespace relevant fields	2024-09-09 10:30:52 +01:00
net-sysfs.h
net-traces.c
netclassid_cgroup.c
netdev_rx_queue.c	memory-provider: dmabuf devmem memory provider	2024-09-11 20:44:31 -07:00
netdev-genl-gen.c	netdev: support binding dma-buf to netdevice	2024-09-11 20:44:31 -07:00
netdev-genl-gen.h	netdev: support binding dma-buf to netdevice	2024-09-11 20:44:31 -07:00
netdev-genl.c	netdev: support binding dma-buf to netdevice	2024-09-11 20:44:31 -07:00
netevent.c
netmem_priv.h	page_pool: devmem support	2024-09-11 20:44:31 -07:00
netpoll.c	netpoll: remove netpoll_srcu	2024-09-06 18:24:59 -07:00
netprio_cgroup.c
of_net.c
page_pool_priv.h	memory-provider: dmabuf devmem memory provider	2024-09-11 20:44:31 -07:00
page_pool_user.c	memory-provider: dmabuf devmem memory provider	2024-09-11 20:44:31 -07:00
page_pool.c	memory-provider: dmabuf devmem memory provider	2024-09-11 20:44:31 -07:00
pktgen.c	Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net	2024-08-29 11:49:10 -07:00
ptp_classifier.c
request_sock.c
rtnetlink.c	netdevice: convert private flags > BIT(31) to bitfields	2024-09-03 11:36:43 +02:00
scm.c	af_unix: Add dead flag to struct scm_fp_list.	2024-05-10 18:52:45 -07:00
secure_seq.c
selftests.c
skbuff.c	net: add support for skbs with unreadable frags	2024-09-11 20:44:31 -07:00
skmsg.c	skmsg: Skip zero length skb in sk_msg_recvmsg	2024-07-09 10:24:50 +02:00
sock_destructor.h
sock_diag.c	net: use unrcu_pointer() helper	2024-06-06 11:52:52 +02:00
sock_map.c	sock_map: avoid race between sock_map_close and sk_psock_put	2024-05-28 12:05:19 +02:00
sock_reuseport.c	net: core: annotate socks of struct sock_reuseport with __counted_by	2024-08-02 17:16:59 -07:00
sock.c	net: Correct spelling in net/core	2024-08-26 09:37:23 -07:00
stream.c
sysctl_net_core.c	sysctl: treewide: constify the ctl_table argument of proc_handlers	2024-07-24 20:59:29 +02:00
timestamping.c	net: Change the API of PHY default timestamp to MAC	2024-07-15 08:02:26 -07:00
tso.c
utils.c	net: Correct spelling in net/core	2024-08-26 09:37:23 -07:00
xdp.c	xdp: fix invalid wait context of page_pool_destroy()	2024-07-14 20:40:21 -07:00