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authorJakub Kicinski <kuba@kernel.org>2023-06-22 18:40:38 -0700
committerJakub Kicinski <kuba@kernel.org>2023-06-22 18:40:38 -0700
commita7384f3918756c193e3fcd7e3111fc4bd3686013 (patch)
tree156fda862edf0154225e6a5d8d092b0f6fe35728 /net/dsa
parent98e95872f2b818c74872d073eaa4c937579d41fc (diff)
parent8a28a0b6f1a1dcbf5a834600a9acfbe2ba51e5eb (diff)
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Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net
Cross-merge networking fixes after downstream PR. Conflicts: tools/testing/selftests/net/fcnal-test.sh d7a2fc1437f7 ("selftests: net: fcnal-test: check if FIPS mode is enabled") dd017c72dde6 ("selftests: fcnal: Test SO_DONTROUTE on TCP sockets.") https://lore.kernel.org/all/5007b52c-dd16-dbf6-8d64-b9701bfa498b@tessares.net/ https://lore.kernel.org/all/20230619105427.4a0df9b3@canb.auug.org.au/ No adjacent changes. Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Diffstat (limited to 'net/dsa')
-rw-r--r--net/dsa/dsa.c24
1 files changed, 23 insertions, 1 deletions
diff --git a/net/dsa/dsa.c b/net/dsa/dsa.c
index ab1afe67fd18..1afed89e03c0 100644
--- a/net/dsa/dsa.c
+++ b/net/dsa/dsa.c
@@ -403,6 +403,24 @@ static int dsa_tree_setup_default_cpu(struct dsa_switch_tree *dst)
return 0;
}
+static struct dsa_port *
+dsa_switch_preferred_default_local_cpu_port(struct dsa_switch *ds)
+{
+ struct dsa_port *cpu_dp;
+
+ if (!ds->ops->preferred_default_local_cpu_port)
+ return NULL;
+
+ cpu_dp = ds->ops->preferred_default_local_cpu_port(ds);
+ if (!cpu_dp)
+ return NULL;
+
+ if (WARN_ON(!dsa_port_is_cpu(cpu_dp) || cpu_dp->ds != ds))
+ return NULL;
+
+ return cpu_dp;
+}
+
/* Perform initial assignment of CPU ports to user ports and DSA links in the
* fabric, giving preference to CPU ports local to each switch. Default to
* using the first CPU port in the switch tree if the port does not have a CPU
@@ -410,12 +428,16 @@ static int dsa_tree_setup_default_cpu(struct dsa_switch_tree *dst)
*/
static int dsa_tree_setup_cpu_ports(struct dsa_switch_tree *dst)
{
- struct dsa_port *cpu_dp, *dp;
+ struct dsa_port *preferred_cpu_dp, *cpu_dp, *dp;
list_for_each_entry(cpu_dp, &dst->ports, list) {
if (!dsa_port_is_cpu(cpu_dp))
continue;
+ preferred_cpu_dp = dsa_switch_preferred_default_local_cpu_port(cpu_dp->ds);
+ if (preferred_cpu_dp && preferred_cpu_dp != cpu_dp)
+ continue;
+
/* Prefer a local CPU port */
dsa_switch_for_each_port(dp, cpu_dp->ds) {
/* Prefer the first local CPU port found */