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authorHoratiu Vultur <horatiu.vultur@microchip.com>2021-02-16 22:42:02 +0100
committerDavid S. Miller <davem@davemloft.net>2021-02-16 14:47:46 -0800
commitcd605d455a445837edb3372addbdd9a9e38df23b (patch)
tree7f97101453c7859bf260c1ca2a63f9b9d42f845e /net/bridge
parent1a3ddb0b751604215630ca121c090d57e8c68169 (diff)
bridge: mrp: Update br_mrp to use new return values of br_mrp_switchdev
Check the return values of the br_mrp_switchdev function. In case of: - BR_MRP_NONE, return the error to userspace, - BR_MRP_SW, continue with SW implementation, - BR_MRP_HW, continue without SW implementation, Signed-off-by: Horatiu Vultur <horatiu.vultur@microchip.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/bridge')
-rw-r--r--net/bridge/br_mrp.c43
1 files changed, 27 insertions, 16 deletions
diff --git a/net/bridge/br_mrp.c b/net/bridge/br_mrp.c
index 01c67ed727a9..12487f6fe9b4 100644
--- a/net/bridge/br_mrp.c
+++ b/net/bridge/br_mrp.c
@@ -639,7 +639,7 @@ int br_mrp_set_ring_role(struct net_bridge *br,
struct br_mrp_ring_role *role)
{
struct br_mrp *mrp = br_mrp_find_id(br, role->ring_id);
- int err;
+ enum br_mrp_hw_support support;
if (!mrp)
return -EINVAL;
@@ -647,9 +647,9 @@ int br_mrp_set_ring_role(struct net_bridge *br,
mrp->ring_role = role->ring_role;
/* If there is an error just bailed out */
- err = br_mrp_switchdev_set_ring_role(br, mrp, role->ring_role);
- if (err && err != -EOPNOTSUPP)
- return err;
+ support = br_mrp_switchdev_set_ring_role(br, mrp, role->ring_role);
+ if (support == BR_MRP_NONE)
+ return -EOPNOTSUPP;
/* Now detect if the HW actually applied the role or not. If the HW
* applied the role it means that the SW will not to do those operations
@@ -657,7 +657,7 @@ int br_mrp_set_ring_role(struct net_bridge *br,
* SW when ring is open, but if the is not pushed to the HW the SW will
* need to detect when the ring is open
*/
- mrp->ring_role_offloaded = err == -EOPNOTSUPP ? 0 : 1;
+ mrp->ring_role_offloaded = support == BR_MRP_SW ? 0 : 1;
return 0;
}
@@ -670,6 +670,7 @@ int br_mrp_start_test(struct net_bridge *br,
struct br_mrp_start_test *test)
{
struct br_mrp *mrp = br_mrp_find_id(br, test->ring_id);
+ enum br_mrp_hw_support support;
if (!mrp)
return -EINVAL;
@@ -677,9 +678,13 @@ int br_mrp_start_test(struct net_bridge *br,
/* Try to push it to the HW and if it fails then continue with SW
* implementation and if that also fails then return error.
*/
- if (!br_mrp_switchdev_send_ring_test(br, mrp, test->interval,
- test->max_miss, test->period,
- test->monitor))
+ support = br_mrp_switchdev_send_ring_test(br, mrp, test->interval,
+ test->max_miss, test->period,
+ test->monitor);
+ if (support == BR_MRP_NONE)
+ return -EOPNOTSUPP;
+
+ if (support == BR_MRP_HW)
return 0;
mrp->test_interval = test->interval;
@@ -721,8 +726,8 @@ int br_mrp_set_in_state(struct net_bridge *br, struct br_mrp_in_state *state)
int br_mrp_set_in_role(struct net_bridge *br, struct br_mrp_in_role *role)
{
struct br_mrp *mrp = br_mrp_find_id(br, role->ring_id);
+ enum br_mrp_hw_support support;
struct net_bridge_port *p;
- int err;
if (!mrp)
return -EINVAL;
@@ -780,10 +785,10 @@ int br_mrp_set_in_role(struct net_bridge *br, struct br_mrp_in_role *role)
mrp->in_id = role->in_id;
/* If there is an error just bailed out */
- err = br_mrp_switchdev_set_in_role(br, mrp, role->in_id,
- role->ring_id, role->in_role);
- if (err && err != -EOPNOTSUPP)
- return err;
+ support = br_mrp_switchdev_set_in_role(br, mrp, role->in_id,
+ role->ring_id, role->in_role);
+ if (support == BR_MRP_NONE)
+ return -EOPNOTSUPP;
/* Now detect if the HW actually applied the role or not. If the HW
* applied the role it means that the SW will not to do those operations
@@ -791,7 +796,7 @@ int br_mrp_set_in_role(struct net_bridge *br, struct br_mrp_in_role *role)
* SW when interconnect ring is open, but if the is not pushed to the HW
* the SW will need to detect when the interconnect ring is open.
*/
- mrp->in_role_offloaded = err == -EOPNOTSUPP ? 0 : 1;
+ mrp->in_role_offloaded = support == BR_MRP_SW ? 0 : 1;
return 0;
}
@@ -804,6 +809,7 @@ int br_mrp_start_in_test(struct net_bridge *br,
struct br_mrp_start_in_test *in_test)
{
struct br_mrp *mrp = br_mrp_find_in_id(br, in_test->in_id);
+ enum br_mrp_hw_support support;
if (!mrp)
return -EINVAL;
@@ -814,8 +820,13 @@ int br_mrp_start_in_test(struct net_bridge *br,
/* Try to push it to the HW and if it fails then continue with SW
* implementation and if that also fails then return error.
*/
- if (!br_mrp_switchdev_send_in_test(br, mrp, in_test->interval,
- in_test->max_miss, in_test->period))
+ support = br_mrp_switchdev_send_in_test(br, mrp, in_test->interval,
+ in_test->max_miss,
+ in_test->period);
+ if (support == BR_MRP_NONE)
+ return -EOPNOTSUPP;
+
+ if (support == BR_MRP_HW)
return 0;
mrp->in_test_interval = in_test->interval;