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https://github.com/AuxXxilium/linux_dsm_epyc7002.git
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4b3a61b030
Each MRP instance has a priority, a lower value means a higher priority. The priority of MRP instance is stored in MRP_Test frame in this way all the MRP nodes in the ring can see other nodes priority. Signed-off-by: Horatiu Vultur <horatiu.vultur@microchip.com> Signed-off-by: David S. Miller <davem@davemloft.net>
142 lines
3.1 KiB
C
142 lines
3.1 KiB
C
// SPDX-License-Identifier: GPL-2.0-or-later
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#include <net/switchdev.h>
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#include "br_private_mrp.h"
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int br_mrp_switchdev_add(struct net_bridge *br, struct br_mrp *mrp)
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{
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struct switchdev_obj_mrp mrp_obj = {
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.obj.orig_dev = br->dev,
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.obj.id = SWITCHDEV_OBJ_ID_MRP,
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.p_port = rtnl_dereference(mrp->p_port)->dev,
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.s_port = rtnl_dereference(mrp->s_port)->dev,
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.ring_id = mrp->ring_id,
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.prio = mrp->prio,
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};
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int err;
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err = switchdev_port_obj_add(br->dev, &mrp_obj.obj, NULL);
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if (err && err != -EOPNOTSUPP)
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return err;
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return 0;
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}
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int br_mrp_switchdev_del(struct net_bridge *br, struct br_mrp *mrp)
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{
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struct switchdev_obj_mrp mrp_obj = {
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.obj.orig_dev = br->dev,
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.obj.id = SWITCHDEV_OBJ_ID_MRP,
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.p_port = NULL,
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.s_port = NULL,
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.ring_id = mrp->ring_id,
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};
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int err;
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err = switchdev_port_obj_del(br->dev, &mrp_obj.obj);
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if (err && err != -EOPNOTSUPP)
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return err;
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return 0;
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}
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int br_mrp_switchdev_set_ring_role(struct net_bridge *br,
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struct br_mrp *mrp,
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enum br_mrp_ring_role_type role)
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{
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struct switchdev_obj_ring_role_mrp mrp_role = {
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.obj.orig_dev = br->dev,
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.obj.id = SWITCHDEV_OBJ_ID_RING_ROLE_MRP,
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.ring_role = role,
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.ring_id = mrp->ring_id,
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};
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int err;
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if (role == BR_MRP_RING_ROLE_DISABLED)
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err = switchdev_port_obj_del(br->dev, &mrp_role.obj);
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else
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err = switchdev_port_obj_add(br->dev, &mrp_role.obj, NULL);
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return err;
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}
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int br_mrp_switchdev_send_ring_test(struct net_bridge *br,
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struct br_mrp *mrp, u32 interval,
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u8 max_miss, u32 period)
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{
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struct switchdev_obj_ring_test_mrp test = {
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.obj.orig_dev = br->dev,
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.obj.id = SWITCHDEV_OBJ_ID_RING_TEST_MRP,
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.interval = interval,
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.max_miss = max_miss,
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.ring_id = mrp->ring_id,
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.period = period,
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};
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int err;
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if (interval == 0)
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err = switchdev_port_obj_del(br->dev, &test.obj);
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else
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err = switchdev_port_obj_add(br->dev, &test.obj, NULL);
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return err;
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}
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int br_mrp_switchdev_set_ring_state(struct net_bridge *br,
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struct br_mrp *mrp,
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enum br_mrp_ring_state_type state)
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{
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struct switchdev_obj_ring_state_mrp mrp_state = {
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.obj.orig_dev = br->dev,
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.obj.id = SWITCHDEV_OBJ_ID_RING_STATE_MRP,
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.ring_state = state,
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.ring_id = mrp->ring_id,
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};
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int err;
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err = switchdev_port_obj_add(br->dev, &mrp_state.obj, NULL);
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if (err && err != -EOPNOTSUPP)
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return err;
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return 0;
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}
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int br_mrp_port_switchdev_set_state(struct net_bridge_port *p,
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enum br_mrp_port_state_type state)
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{
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struct switchdev_attr attr = {
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.orig_dev = p->dev,
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.id = SWITCHDEV_ATTR_ID_MRP_PORT_STATE,
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.u.mrp_port_state = state,
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};
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int err;
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err = switchdev_port_attr_set(p->dev, &attr);
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if (err && err != -EOPNOTSUPP)
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br_warn(p->br, "error setting offload MRP state on port %u(%s)\n",
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(unsigned int)p->port_no, p->dev->name);
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return err;
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}
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int br_mrp_port_switchdev_set_role(struct net_bridge_port *p,
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enum br_mrp_port_role_type role)
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{
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struct switchdev_attr attr = {
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.orig_dev = p->dev,
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.id = SWITCHDEV_ATTR_ID_MRP_PORT_ROLE,
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.u.mrp_port_role = role,
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};
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int err;
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err = switchdev_port_attr_set(p->dev, &attr);
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if (err && err != -EOPNOTSUPP)
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return err;
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return 0;
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}
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