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John Fastabend f0796d5c73 net: decreasing real_num_tx_queues needs to flush qdisc ... Reducing real_num_queues needs to flush the qdisc otherwise skbs with queue_mappings greater then real_num_tx_queues can be sent to the underlying driver. The flow for this is, dev_queue_xmit() dev_pick_tx() skb_tx_hash() => hash using real_num_tx_queues skb_set_queue_mapping() ... qdisc_enqueue_root() => enqueue skb on txq from hash ... dev->real_num_tx_queues -= n ... sch_direct_xmit() dev_hard_start_xmit() ndo_start_xmit(skb,dev) => skb queue set with old hash skbs are enqueued on the qdisc with skb->queue_mapping set 0 < queue_mappings < real_num_tx_queues. When the driver decreases real_num_tx_queues skb's may be dequeued from the qdisc with a queue_mapping greater then real_num_tx_queues. This fixes a case in ixgbe where this was occurring with DCB and FCoE. Because the driver is using queue_mapping to map skbs to tx descriptor rings we can potentially map skbs to rings that no longer exist. Signed-off-by: John Fastabend <john.r.fastabend@intel.com> Tested-by: Ross Brattain <ross.b.brattain@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>		15 years ago
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9p	9p: add 9P2000.L rename operation	15 years ago
bluetooth	Bluetooth: Create per controller workqueue	15 years ago
caif	caif: Bugfix - use standard Linux lists	15 years ago
irda	tree-wide: fix typos "ass?o[sc]iac?te" -> "associate" in comments	15 years ago
iucv	include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h	15 years ago
netfilter	netfilter: nf_conntrack: fix a race in __nf_conntrack_confirm against nf_ct_get_next_corpse()	15 years ago
netns	ipv6: ip6mr: support multiple tables	15 years ago
phonet	Phonet: zero-copy GPRS TX	15 years ago
sctp	sctp: dubious bitfields in sctp_transport	15 years ago
tc_act	…
tipc	tipc: Update commenting in TIPC API	15 years ago
act_api.h	…
addrconf.h	net: Add checking to rcu_dereference() primitives	15 years ago
af_ieee802154.h	…
af_rxrpc.h	…
af_unix.h	net: sock_def_readable() and friends RCU conversion	15 years ago
ah.h	…
arp.h	…
atmclip.h	…
ax25.h	include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h	15 years ago
ax88796.h	…
cfg80211.h	cfg80211/mac80211: better channel handling	15 years ago
checksum.h	…
cipso_ipv4.h	…
cls_cgroup.h	cls_cgroup: Initialise classid when module is absent	15 years ago
compat.h	net: fix compat_sys_recvmmsg parameter type	15 years ago
datalink.h	…
dcbnl.h	…
dn.h	…
dn_dev.h	Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next-2.6	15 years ago
dn_fib.h	decnet: Remove unused FIB metric macros.	15 years ago
dn_neigh.h	…
dn_nsp.h	…
dn_route.h	…
dsa.h	…
dsfield.h	…
dst.h	net: check for refcount if pop a stacked dst_entry	15 years ago
dst_ops.h	…
esp.h	…
ethoc.h	…
fib_rules.h	net: fib_rules: mark arguments to fib_rules_register const and __net_initdata	15 years ago
flow.h	flow: virtualize flow cache entry methods	15 years ago
garp.h	…
gen_stats.h	…
genetlink.h	…
icmp.h	ipv4: raw: move struct raw_sock and raw_sk() to include/net/raw.h	15 years ago
ieee80211_radiotap.h	wireless: update radiotap parser	15 years ago
ieee802154.h	…
ieee802154_netdev.h	…
if_inet6.h	ipv6: Replace inet6_ifaddr->dead with state	15 years ago
inet6_connection_sock.h	net: replace ipfragok with skb->local_df	15 years ago
inet6_hashtables.h	tcp: Fix a connect() race with timewait sockets	15 years ago
inet_common.h	…
inet_connection_sock.h	net: replace ipfragok with skb->local_df	15 years ago
inet_ecn.h	…
inet_frag.h	…
inet_hashtables.h	tcp: Fix a connect() race with timewait sockets	15 years ago
inet_sock.h	net: Make RFS socket operations not be inet specific.	15 years ago
inet_timewait_sock.h	net: suppress RCU lockdep false positive in twsk_net()	15 years ago
inetpeer.h	…
ip.h	kernel-wide: replace USHORT_MAX, SHORT_MAX and SHORT_MIN with USHRT_MAX, SHRT_MAX and SHRT_MIN	15 years ago
ip6_checksum.h	…
ip6_fib.h	ipv6 fib: Make rt6_info{} more cache-line aware.	15 years ago
ip6_route.h	net: sk_dst_cache RCUification	15 years ago
ip6_tunnel.h	ipv6 ip6_tunnel: eliminate unused recursion field from ip6_tnl{}.	15 years ago
ip_fib.h	…
ip_vs.h	ipvs: SCTP Trasport Loadbalancing Support	15 years ago
ipcomp.h	percpu: add __percpu sparse annotations to net	15 years ago
ipconfig.h	…
ipip.h	…
ipv6.h	kernel-wide: replace USHORT_MAX, SHORT_MAX and SHORT_MIN with USHRT_MAX, SHRT_MAX and SHRT_MIN	15 years ago
ipx.h	include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h	15 years ago
iw_handler.h	include/net/iw_handler.h: Use SIOCIWFIRST not SIOCSIWCOMMIT in comment	15 years ago
lapb.h	…
lib80211.h	…
llc.h	llc: convert llc_sap_list to RCU	15 years ago
llc_c_ac.h	…
llc_c_ev.h	…
llc_c_st.h	…
llc_conn.h	llc: use a device based hash table to speed up multicast delivery	15 years ago
llc_if.h	…
llc_pdu.h	…
llc_s_ac.h	…
llc_s_ev.h	…
llc_s_st.h	…
llc_sap.h	…
mac80211.h	wireless: fix mac80211.h kernel-doc warnings	15 years ago
mip6.h	…
mld.h	ipv6 mcast: Introduce include/net/mld.h for MLD definitions.	15 years ago
ndisc.h	…
neighbour.h	netfilter: bridge-netfilter: Fix MAC header handling with IP DNAT	15 years ago
net_namespace.h	nsproxy: remove INIT_NSPROXY()	15 years ago
netdma.h	…
netevent.h	…
netlabel.h	include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h	15 years ago
netlink.h	netlink: fix unaligned access in nla_get_be64()	15 years ago
netrom.h	include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h	15 years ago
nexthop.h	…
nl802154.h	…
p8022.h	…
pkt_cls.h	…
pkt_sched.h	gen_estimator: deadlock fix	15 years ago
protocol.h	…
psnap.h	…
raw.h	ipv4: ipmr: support multiple tables	15 years ago
rawv6.h	…
red.h	…
regulatory.h	cfg80211: add regulatory hint disconnect support	15 years ago
request_sock.h	tcp: account SYN-ACK timeouts & retransmissions	15 years ago
rose.h	…
route.h	net: implements ip_route_input_noref()	15 years ago
rtnetlink.h	rtnetlink: support specifying device flags on device creation	15 years ago
sch_generic.h	net: decreasing real_num_tx_queues needs to flush qdisc	15 years ago
scm.h	…
slhc_vj.h	…
snmp.h	snmp: fix SNMP_ADD_STATS()	15 years ago
sock.h	net: sock_queue_err_skb() dont mess with sk_forward_alloc	15 years ago
stp.h	…
tcp.h	Merge branch 'master' of master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6	15 years ago
tcp_states.h	…
timewait_sock.h	…
transp_v6.h	IPv6: Add dontfrag argument to relevant functions	15 years ago
udp.h	…
udplite.h	…
wext.h	…
wimax.h	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial	15 years ago
wpan-phy.h	…
x25.h	X25: Move accept approve flag to bitfield	15 years ago
x25device.h	X25: Add if_x25.h and x25 to device identifiers	15 years ago
xfrm.h	xfrm: fix XFRMA_MARK extraction in xfrm_mark_get	15 years ago