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openvswitch: fix alignment issues

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Signed-off-by: Mark Gray <mark.d.gray@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Mark Gray 2021-07-23 10:24:13 -04:00 committed by David S. Miller
parent e4252cb666
commit 784dcfa56e
3 changed files with 16 additions and 10 deletions
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4
include/uapi/linux/openvswitch.h
View File

@ -89,8 +89,8 @@ enum ovs_datapath_attr {
OVS_DP_ATTR_USER_FEATURES, /* OVS_DP_F_* */
OVS_DP_ATTR_PAD,
OVS_DP_ATTR_MASKS_CACHE_SIZE,
OVS_DP_ATTR_PER_CPU_PIDS, /* Netlink PIDS to receive upcalls in per-cpu
* dispatch mode
OVS_DP_ATTR_PER_CPU_PIDS, /* Netlink PIDS to receive upcalls in
* per-cpu dispatch mode
*/
__OVS_DP_ATTR_MAX
};

6
net/openvswitch/actions.c
View File

@ -924,9 +924,11 @@ static int output_userspace(struct datapath *dp, struct sk_buff *skb,
break;
case OVS_USERSPACE_ATTR_PID:
if (dp->user_features & OVS_DP_F_DISPATCH_UPCALL_PER_CPU)
if (dp->user_features &
OVS_DP_F_DISPATCH_UPCALL_PER_CPU)
upcall.portid =
ovs_dp_get_upcall_portid(dp, smp_processor_id());
ovs_dp_get_upcall_portid(dp,
smp_processor_id());
else
upcall.portid = nla_get_u32(a);
break;

16
net/openvswitch/datapath.c
View File

@ -244,7 +244,8 @@ void ovs_dp_process_packet(struct sk_buff *skb, struct sw_flow_key *key)
upcall.cmd = OVS_PACKET_CMD_MISS;
if (dp->user_features & OVS_DP_F_DISPATCH_UPCALL_PER_CPU)
upcall.portid = ovs_dp_get_upcall_portid(dp, smp_processor_id());
upcall.portid =
ovs_dp_get_upcall_portid(dp, smp_processor_id());
else
upcall.portid = ovs_vport_find_upcall_portid(p, skb);
@ -1636,13 +1637,16 @@ u32 ovs_dp_get_upcall_portid(const struct datapath *dp, uint32_t cpu_id)
if (dp_nlsk_pids) {
if (cpu_id < dp_nlsk_pids->n_pids) {
return dp_nlsk_pids->pids[cpu_id];
} else if (dp_nlsk_pids->n_pids > 0 && cpu_id >= dp_nlsk_pids->n_pids) {
/* If the number of netlink PIDs is mismatched with the number of
* CPUs as seen by the kernel, log this and send the upcall to an
* arbitrary socket (0) in order to not drop packets
} else if (dp_nlsk_pids->n_pids > 0 &&
cpu_id >= dp_nlsk_pids->n_pids) {
/* If the number of netlink PIDs is mismatched with
* the number of CPUs as seen by the kernel, log this
* and send the upcall to an arbitrary socket (0) in
* order to not drop packets
*/
pr_info_ratelimited("cpu_id mismatch with handler threads");
return dp_nlsk_pids->pids[cpu_id % dp_nlsk_pids->n_pids];
return dp_nlsk_pids->pids[cpu_id %
dp_nlsk_pids->n_pids];
} else {
return 0;
}