linux/net/core
Alexander Duyck ffcfe25bb5 net: Add support for subordinate device traffic classes
This patch is meant to provide the basic tools needed to allow us to create
subordinate device traffic classes. The general idea here is to allow
subdividing the queues of a device into queue groups accessible through an
upper device such as a macvlan.

The idea here is to enforce the idea that an upper device has to be a
single queue device, ideally with IFF_NO_QUQUE set. With that being the
case we can pretty much guarantee that the tc_to_txq mappings and XPS maps
for the upper device are unused. As such we could reuse those in order to
support subdividing the lower device and distributing those queues between
the subordinate devices.

In order to distinguish between a regular set of traffic classes and if a
device is carrying subordinate traffic classes I changed num_tc from a u8
to a s16 value and use the negative values to represent the subordinate
pool values. So starting at -1 and running to -32768 we can encode those as
pool values, and the existing values of 0 to 15 can be maintained.

Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2018-07-09 12:11:23 -07:00
..
datagram.c Revert changes to convert to ->poll_mask() and aio IOCB_CMD_POLL 2018-06-28 10:40:47 -07:00
dev.c net: Add support for subordinate device traffic classes 2018-07-09 12:11:23 -07:00
dev_addr_lists.c net: change the comment of dev_mc_init 2018-04-19 12:58:20 -04:00
dev_ioctl.c net: use dev_change_tx_queue_len() for SIOCSIFTXQLEN 2018-06-30 21:26:52 +09:00
devlink.c devlink: Add enable_sriov boolean generic parameter 2018-07-05 19:58:35 +09:00
drop_monitor.c
dst.c net/ipv6: move metrics from dst to rt6_info 2018-04-17 23:41:16 -04:00
dst_cache.c net: core: dst_cache_set_ip6: Rename 'addr' parameter to 'saddr' for consistency 2018-03-05 12:52:45 -05:00
ethtool.c treewide: Use array_size() in vzalloc() 2018-06-12 16:19:22 -07:00
failover.c net: Introduce generic failover module 2018-05-28 22:59:54 -04:00
fib_notifier.c net: Fix fib notifer to return errno 2018-03-29 14:10:30 -04:00
fib_rules.c net: fib_rules: bring back rule_exists to match rule during add 2018-06-30 22:11:13 +09:00
filter.c net: core: filter: mark expected switch fall-through 2018-07-05 20:26:50 +09:00
flow_dissector.c net/flow_dissector: Add support for QinQ dissection 2018-07-07 20:51:53 +09:00
gen_estimator.c net_sched: gen_estimator: fix broken estimators based on percpu stats 2018-02-23 12:35:46 -05:00
gen_stats.c
gro_cells.c
hwbm.c
link_watch.c
lwt_bpf.c
lwtunnel.c
Makefile net: Introduce generic failover module 2018-05-28 22:59:54 -04:00
neighbour.c neighbour: force neigh_invalidate when NUD_FAILED update is from admin 2018-06-27 15:40:45 +09:00
net-procfs.c proc: introduce proc_create_net{,_data} 2018-05-16 07:24:30 +02:00
net-sysfs.c net: Add support for subordinate device traffic classes 2018-07-09 12:11:23 -07:00
net-sysfs.h
net-traces.c net/ipv6: Udate fib6_table_lookup tracepoint 2018-05-24 23:01:15 -04:00
net_namespace.c net: Do not take net_rwsem in __rtnl_link_unregister() 2018-03-31 22:24:58 -04:00
netclassid_cgroup.c
netevent.c
netpoll.c
netprio_cgroup.c
page_pool.c page_pool: refurbish version of page_pool code 2018-04-17 10:50:29 -04:00
pktgen.c treewide: Use array_size() in vzalloc_node() 2018-06-12 16:19:22 -07:00
ptp_classifier.c
request_sock.c
rtnetlink.c rtnetlink: add rtnl_link_state check in rtnl_configure_link 2018-07-07 20:20:46 +09:00
scm.c
secure_seq.c
skbuff.c net: Clear skb->tstamp only on the forwarding path 2018-07-04 22:30:27 +09:00
sock.c net/sched: Make etf report drops on error_queue 2018-07-04 22:30:28 +09:00
sock_diag.c net: Drop pernet_operations::async 2018-03-27 13:18:09 -04:00
sock_reuseport.c
stream.c vfs: do bulk POLL* -> EPOLL* replacement 2018-02-11 14:34:03 -08:00
sysctl_net_core.c headers: untangle kmemleak.h from mm.h 2018-04-05 21:36:27 -07:00
timestamping.c
tso.c
utils.c net/utils: Introduce inet_addr_is_any 2018-03-26 08:53:43 -06:00
xdp.c rhashtable: remove nulls_base and related code. 2018-06-22 13:43:27 +09:00