kernel/linux
0
Fork 0
mirror of https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/ synced 2026-10-22 19:14:51 +00:00
Code Issues Releases Packages Activity
linux/net/core
History
Dragos Tatulea c5eb9ae97f page_pool: Clamp pool size to max 16K pages 
[ Upstream commit a1b501a8c6 ]

page_pool_init() returns E2BIG when the page_pool size goes above 32K
pages. As some drivers are configuring the page_pool size according to
the MTU and ring size, there are cases where this limit is exceeded and
the queue creation fails.

The page_pool size doesn't have to cover a full queue, especially for
larger ring size. So clamp the size instead of returning an error. Do
this in the core to avoid having each driver do the clamping.

The current limit was deemed to high [1] so it was reduced to 16K to avoid
page waste.

[1] https://lore.kernel.org/all/1758532715-820422-3-git-send-email-tariqt@nvidia.com/

Signed-off-by: Dragos Tatulea <dtatulea@nvidia.com>
Reviewed-by: Tariq Toukan <tariqt@nvidia.com>
Link: https://patch.msgid.link/20250926131605.2276734-2-dtatulea@nvidia.com
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
History 2025-12-07 06:12:27 +09:00
..
bpf_sk_storage.c bpf: Refactor some inode/task/sk storage functions for reuse 2024-07-18 13:18:34 +02:00
datagram.c net: fix rc7's __skb_datagram_iter() 2024-07-18 13:18:33 +02:00
dev.c net: gso: Forbid IPv6 TSO with extensions on devices with only IPV6_CSUM 2025-08-28 16:26:17 +02:00
dev.h net: fix removing a namespace with conflicting altnames 2024-01-31 16:17:04 -08:00
dev_addr_lists.c net: extract a few internals from netdevice.h 2022-04-07 20:32:09 -07:00
dev_addr_lists_test.c net: kunit: add a test for dev_addr_lists 2021-11-20 12:25:57 +00:00
dev_ioctl.c net: dev: Convert sa_data to flexible array in struct sockaddr 2024-03-01 13:26:36 +01:00
drop_monitor.c drop_monitor: fix incorrect initialization order 2025-03-07 16:56:38 +01:00
dst.c net: do not delay dst_entries_add() in dst_release() 2024-11-14 13:15:17 +01:00
dst_cache.c wireguard: device: reset peer src endpoint when netns exits 2021-11-29 19:50:45 -08:00
failover.c net: rename reference+tracking helpers 2022-06-09 21:52:55 -07:00
fib_notifier.c net: fib_notifier: propagate extack down to the notifier block callback 2019-10-04 11:10:56 -07:00
fib_rules.c fib: expand fib_rule_policy 2021-12-16 07:18:35 -08:00
filter.c bpf: Clear pfmemalloc flag when freeing all fragments 2025-12-07 06:12:17 +09:00
flow_dissector.c flow_dissector: Fix port range key handling in BPF conversion 2025-03-07 16:56:35 +01:00
flow_offload.c flow_offload: Introduce flow_match_l2tpv3 2022-09-20 09:13:38 +02:00
gen_estimator.c net: use unrcu_pointer() helper 2024-12-14 19:53:33 +01:00
gen_stats.c net: sched: fix misuse of qcpu->backlog in gnet_stats_add_queue_cpu 2022-08-16 19:38:20 -07:00
gro.c net: Clear old fragment checksum value in napi_reuse_skb 2025-03-07 16:56:45 +01:00
gro_cells.c net: drop the weight argument from netif_napi_add 2022-09-28 18:57:14 -07:00
hwbm.c net: hwbm: Make the hwbm_pool lock a mutex 2019-06-09 19:40:10 -07:00
link_watch.c net: linkwatch: use system_unbound_wq 2024-08-14 13:52:44 +02:00
lwt_bpf.c lwt: Fix return values of BPF xmit ops 2023-09-13 09:42:33 +02:00
lwtunnel.c net: lwtunnel: disable BHs when required 2025-05-02 07:46:54 +02:00
Makefile devlink: move code to a dedicated directory 2023-08-30 16:11:00 +02:00
neighbour.c neighbour: add support for NUD_PERMANENT proxy entries 2025-08-28 16:25:57 +02:00
net-procfs.c net: extract a few internals from netdevice.h 2022-04-07 20:32:09 -07:00
net-sysfs.c ethtool: check device is present when getting link settings 2024-09-04 13:25:01 +02:00
net-sysfs.h net-sysfs: add netdev_change_owner() 2020-02-26 20:07:25 -08:00
net-traces.c tcp: add tracepoint for checksum errors 2021-05-14 15:26:03 -07:00
net_namespace.c net: add exit_batch_rtnl() method 2025-01-23 17:17:09 +01:00
netclassid_cgroup.c core: Variable type completion 2022-08-31 09:40:34 +01:00
netevent.c net: core: Correct function name netevent_unregister_notifier() in the kerneldoc 2021-03-28 17:56:56 -07:00
netpoll.c netpoll: prevent hanging NAPI when netcons gets enabled 2025-08-15 12:05:09 +02:00
netprio_cgroup.c bpf, cgroups: Fix cgroup v2 fallback on v1/v2 mixed mode 2021-09-13 16:35:58 -07:00
of_net.c Revert "of: net: support NVMEM cells with MAC in text format" 2022-01-12 14:14:36 +00:00
page_pool.c page_pool: Clamp pool size to max 16K pages 2025-12-07 06:12:27 +09:00
pktgen.c net: pktgen: fix access outside of user given buffer in pktgen_thread_write() 2025-06-04 14:40:12 +02:00
ptp_classifier.c ptp: Add generic PTP is_sync() function 2022-03-07 11:31:34 +00:00
request_sock.c tcp: make sure init the accept_queue's spinlocks once 2024-01-31 16:17:03 -08:00
rtnetlink.c rtnetlink: Allow deleting FDB entries in user namespace 2025-10-29 14:04:36 +01:00
scm.c af_unix: Add dead flag to struct scm_fp_list. 2025-06-04 14:40:24 +02:00
secure_seq.c tcp: Fix data-races around sysctl knobs related to SYN option. 2022-07-20 10:14:49 +01:00
selftests.c net: selftests: fix TCP packet checksum 2025-07-06 10:58:00 +02:00
skbuff.c ipvs: Always clear ipvs_property flag in skb_scrub_packet() 2025-03-07 16:56:45 +01:00
skmsg.c bpf, sockmap: Fix psock incorrectly pointing to sk 2025-08-15 12:04:56 +02:00
sock.c net: call cond_resched() less often in __release_sock() 2025-12-07 06:12:22 +09:00
sock_destructor.h skb_expand_head() adjust skb->truesize incorrectly 2021-10-22 12:35:51 -07:00
sock_diag.c net: use unrcu_pointer() helper 2024-12-14 19:53:33 +01:00
sock_map.c bpf, sockmap: Fix race between element replace and close() 2025-01-17 13:34:36 +01:00
sock_reuseport.c soreuseport: Fix socket selection for SO_INCOMING_CPU. 2022-12-31 13:32:04 +01:00
stream.c net: Return error from sk_stream_wait_connect() if sk_wait_event() fails 2024-01-01 12:38:56 +00:00
sysctl_net_core.c net: set the minimum for net_hotdata.netdev_budget_usecs 2025-03-07 16:56:43 +01:00
timestamping.c net: Introduce a new MII time stamping interface. 2019-12-25 19:51:33 -08:00
tso.c net: tso: add UDP segmentation support 2020-06-18 20:46:23 -07:00
utils.c net: Fix checksum update for ILA adj-transport 2025-06-27 11:07:38 +01:00
xdp.c xdp: fix invalid wait context of page_pool_destroy() 2024-08-03 08:49:09 +02:00