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-rw-r--r--drivers/net/ethernet/mellanox/mlxsw/spectrum_router.c120
-rw-r--r--drivers/net/ethernet/mellanox/mlxsw/spectrum_router.h24
2 files changed, 114 insertions, 30 deletions
diff --git a/drivers/net/ethernet/mellanox/mlxsw/spectrum_router.c b/drivers/net/ethernet/mellanox/mlxsw/spectrum_router.c
index 39c04e45f253..43a4b6a34940 100644
--- a/drivers/net/ethernet/mellanox/mlxsw/spectrum_router.c
+++ b/drivers/net/ethernet/mellanox/mlxsw/spectrum_router.c
@@ -4307,6 +4307,10 @@ mlxsw_sp_fib_entry_hw_flags_refresh(struct mlxsw_sp *mlxsw_sp,
}
}
+struct mlxsw_sp_fib_entry_op_ctx_basic {
+ char ralue_pl[MLXSW_REG_RALUE_LEN];
+};
+
static void
mlxsw_sp_router_ll_basic_fib_entry_pack(struct mlxsw_sp_fib_entry_op_ctx *op_ctx,
enum mlxsw_sp_l3proto proto,
@@ -4314,8 +4318,9 @@ mlxsw_sp_router_ll_basic_fib_entry_pack(struct mlxsw_sp_fib_entry_op_ctx *op_ctx
u16 virtual_router, u8 prefix_len,
unsigned char *addr)
{
+ struct mlxsw_sp_fib_entry_op_ctx_basic *op_ctx_basic = (void *) op_ctx->ll_priv;
enum mlxsw_reg_ralxx_protocol ralxx_proto;
- char *ralue_pl = op_ctx->ralue_pl;
+ char *ralue_pl = op_ctx_basic->ralue_pl;
enum mlxsw_reg_ralue_op ralue_op;
ralxx_proto = (enum mlxsw_reg_ralxx_protocol) proto;
@@ -4349,8 +4354,10 @@ mlxsw_sp_router_ll_basic_fib_entry_act_remote_pack(struct mlxsw_sp_fib_entry_op_
enum mlxsw_reg_ralue_trap_action trap_action,
u16 trap_id, u32 adjacency_index, u16 ecmp_size)
{
- mlxsw_reg_ralue_act_remote_pack(op_ctx->ralue_pl, trap_action, trap_id,
- adjacency_index, ecmp_size);
+ struct mlxsw_sp_fib_entry_op_ctx_basic *op_ctx_basic = (void *) op_ctx->ll_priv;
+
+ mlxsw_reg_ralue_act_remote_pack(op_ctx_basic->ralue_pl, trap_action,
+ trap_id, adjacency_index, ecmp_size);
}
static void
@@ -4358,27 +4365,37 @@ mlxsw_sp_router_ll_basic_fib_entry_act_local_pack(struct mlxsw_sp_fib_entry_op_c
enum mlxsw_reg_ralue_trap_action trap_action,
u16 trap_id, u16 local_erif)
{
- mlxsw_reg_ralue_act_local_pack(op_ctx->ralue_pl, trap_action, trap_id, local_erif);
+ struct mlxsw_sp_fib_entry_op_ctx_basic *op_ctx_basic = (void *) op_ctx->ll_priv;
+
+ mlxsw_reg_ralue_act_local_pack(op_ctx_basic->ralue_pl, trap_action,
+ trap_id, local_erif);
}
static void
mlxsw_sp_router_ll_basic_fib_entry_act_ip2me_pack(struct mlxsw_sp_fib_entry_op_ctx *op_ctx)
{
- mlxsw_reg_ralue_act_ip2me_pack(op_ctx->ralue_pl);
+ struct mlxsw_sp_fib_entry_op_ctx_basic *op_ctx_basic = (void *) op_ctx->ll_priv;
+
+ mlxsw_reg_ralue_act_ip2me_pack(op_ctx_basic->ralue_pl);
}
static void
mlxsw_sp_router_ll_basic_fib_entry_act_ip2me_tun_pack(struct mlxsw_sp_fib_entry_op_ctx *op_ctx,
u32 tunnel_ptr)
{
- mlxsw_reg_ralue_act_ip2me_tun_pack(op_ctx->ralue_pl, tunnel_ptr);
+ struct mlxsw_sp_fib_entry_op_ctx_basic *op_ctx_basic = (void *) op_ctx->ll_priv;
+
+ mlxsw_reg_ralue_act_ip2me_tun_pack(op_ctx_basic->ralue_pl, tunnel_ptr);
}
static int
mlxsw_sp_router_ll_basic_fib_entry_commit(struct mlxsw_sp *mlxsw_sp,
struct mlxsw_sp_fib_entry_op_ctx *op_ctx)
{
- return mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(ralue), op_ctx->ralue_pl);
+ struct mlxsw_sp_fib_entry_op_ctx_basic *op_ctx_basic = (void *) op_ctx->ll_priv;
+
+ return mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(ralue),
+ op_ctx_basic->ralue_pl);
}
static void mlxsw_sp_fib_entry_pack(struct mlxsw_sp_fib_entry_op_ctx *op_ctx,
@@ -4615,9 +4632,10 @@ static int __mlxsw_sp_fib_entry_update(struct mlxsw_sp *mlxsw_sp,
static int mlxsw_sp_fib_entry_update(struct mlxsw_sp *mlxsw_sp,
struct mlxsw_sp_fib_entry *fib_entry)
{
- struct mlxsw_sp_fib_entry_op_ctx op_ctx = {};
+ struct mlxsw_sp_fib_entry_op_ctx *op_ctx = mlxsw_sp->router->ll_op_ctx;
- return __mlxsw_sp_fib_entry_update(mlxsw_sp, &op_ctx, fib_entry);
+ mlxsw_sp_fib_entry_op_ctx_clear(op_ctx);
+ return __mlxsw_sp_fib_entry_update(mlxsw_sp, op_ctx, fib_entry);
}
static int mlxsw_sp_fib_entry_del(struct mlxsw_sp *mlxsw_sp,
@@ -5012,9 +5030,10 @@ static void __mlxsw_sp_fib_node_entry_unlink(struct mlxsw_sp *mlxsw_sp,
static void mlxsw_sp_fib_node_entry_unlink(struct mlxsw_sp *mlxsw_sp,
struct mlxsw_sp_fib_entry *fib_entry)
{
- struct mlxsw_sp_fib_entry_op_ctx op_ctx = {};
+ struct mlxsw_sp_fib_entry_op_ctx *op_ctx = mlxsw_sp->router->ll_op_ctx;
- __mlxsw_sp_fib_node_entry_unlink(mlxsw_sp, &op_ctx, fib_entry);
+ mlxsw_sp_fib_entry_op_ctx_clear(op_ctx);
+ __mlxsw_sp_fib_node_entry_unlink(mlxsw_sp, op_ctx, fib_entry);
}
static bool mlxsw_sp_fib4_allow_replace(struct mlxsw_sp_fib4_entry *fib4_entry)
@@ -5793,19 +5812,20 @@ static int __mlxsw_sp_router_set_abort_trap(struct mlxsw_sp *mlxsw_sp,
return err;
for (i = 0; i < MLXSW_CORE_RES_GET(mlxsw_sp->core, MAX_VRS); i++) {
+ struct mlxsw_sp_fib_entry_op_ctx *op_ctx = mlxsw_sp->router->ll_op_ctx;
struct mlxsw_sp_vr *vr = &mlxsw_sp->router->vrs[i];
- struct mlxsw_sp_fib_entry_op_ctx op_ctx = {};
char xraltb_pl[MLXSW_REG_XRALTB_LEN];
+ mlxsw_sp_fib_entry_op_ctx_clear(op_ctx);
mlxsw_reg_xraltb_pack(xraltb_pl, vr->id, ralxx_proto, tree_id);
err = ll_ops->raltb_write(mlxsw_sp, xraltb_pl);
if (err)
return err;
- ll_ops->fib_entry_pack(&op_ctx, proto, MLXSW_SP_FIB_ENTRY_OP_WRITE,
+ ll_ops->fib_entry_pack(op_ctx, proto, MLXSW_SP_FIB_ENTRY_OP_WRITE,
vr->id, 0, NULL);
- ll_ops->fib_entry_act_ip2me_pack(&op_ctx);
- err = ll_ops->fib_entry_commit(mlxsw_sp, &op_ctx);
+ ll_ops->fib_entry_act_ip2me_pack(op_ctx);
+ err = ll_ops->fib_entry_commit(mlxsw_sp, op_ctx);
if (err)
return err;
}
@@ -6092,7 +6112,6 @@ static void mlxsw_sp_router_fib4_event_process(struct mlxsw_sp *mlxsw_sp,
{
int err;
- mutex_lock(&mlxsw_sp->router->lock);
mlxsw_sp_span_respin(mlxsw_sp);
switch (fib_event->event) {
@@ -6112,7 +6131,6 @@ static void mlxsw_sp_router_fib4_event_process(struct mlxsw_sp *mlxsw_sp,
fib_info_put(fib_event->fnh_info.fib_nh->nh_parent);
break;
}
- mutex_unlock(&mlxsw_sp->router->lock);
}
static void mlxsw_sp_router_fib6_event_process(struct mlxsw_sp *mlxsw_sp,
@@ -6121,7 +6139,6 @@ static void mlxsw_sp_router_fib6_event_process(struct mlxsw_sp *mlxsw_sp,
{
int err;
- mutex_lock(&mlxsw_sp->router->lock);
mlxsw_sp_span_respin(mlxsw_sp);
switch (fib_event->event) {
@@ -6145,7 +6162,6 @@ static void mlxsw_sp_router_fib6_event_process(struct mlxsw_sp *mlxsw_sp,
mlxsw_sp_router_fib6_event_fini(&fib_event->fib6_event);
break;
}
- mutex_unlock(&mlxsw_sp->router->lock);
}
static void mlxsw_sp_router_fibmr_event_process(struct mlxsw_sp *mlxsw_sp,
@@ -6189,16 +6205,23 @@ static void mlxsw_sp_router_fibmr_event_process(struct mlxsw_sp *mlxsw_sp,
static void mlxsw_sp_router_fib_event_work(struct work_struct *work)
{
struct mlxsw_sp_router *router = container_of(work, struct mlxsw_sp_router, fib_event_work);
- struct mlxsw_sp_fib_entry_op_ctx op_ctx = {};
+ struct mlxsw_sp_fib_entry_op_ctx *op_ctx = router->ll_op_ctx;
struct mlxsw_sp *mlxsw_sp = router->mlxsw_sp;
struct mlxsw_sp_fib_event *next_fib_event;
struct mlxsw_sp_fib_event *fib_event;
+ int last_family = AF_UNSPEC;
LIST_HEAD(fib_event_queue);
spin_lock_bh(&router->fib_event_queue_lock);
list_splice_init(&router->fib_event_queue, &fib_event_queue);
spin_unlock_bh(&router->fib_event_queue_lock);
+ /* Router lock is held here to make sure per-instance
+ * operation context is not used in between FIB4/6 events
+ * processing.
+ */
+ mutex_lock(&router->lock);
+ mlxsw_sp_fib_entry_op_ctx_clear(op_ctx);
list_for_each_entry_safe(fib_event, next_fib_event,
&fib_event_queue, list) {
/* Check if the next entry in the queue exists and it is
@@ -6206,30 +6229,46 @@ static void mlxsw_sp_router_fib_event_work(struct work_struct *work)
* In that case it is permitted to do the bulking
* of multiple FIB entries to a single register write.
*/
- op_ctx.bulk_ok = !list_is_last(&fib_event->list, &fib_event_queue) &&
- fib_event->family == next_fib_event->family &&
- fib_event->event == next_fib_event->event;
+ op_ctx->bulk_ok = !list_is_last(&fib_event->list, &fib_event_queue) &&
+ fib_event->family == next_fib_event->family &&
+ fib_event->event == next_fib_event->event;
+
+ /* In case family of this and the previous entry are different, context
+ * reinitialization is going to be needed now, indicate that.
+ * Note that since last_family is initialized to AF_UNSPEC, this is always
+ * going to happen for the first entry processed in the work.
+ */
+ if (fib_event->family != last_family)
+ op_ctx->initialized = false;
switch (fib_event->family) {
case AF_INET:
- mlxsw_sp_router_fib4_event_process(mlxsw_sp, &op_ctx,
+ mlxsw_sp_router_fib4_event_process(mlxsw_sp, op_ctx,
fib_event);
break;
case AF_INET6:
- mlxsw_sp_router_fib6_event_process(mlxsw_sp, &op_ctx,
+ mlxsw_sp_router_fib6_event_process(mlxsw_sp, op_ctx,
fib_event);
break;
case RTNL_FAMILY_IP6MR:
case RTNL_FAMILY_IPMR:
+ /* Unlock here as inside FIBMR the lock is taken again
+ * under RTNL. The per-instance operation context
+ * is not used by FIBMR.
+ */
+ mutex_unlock(&router->lock);
mlxsw_sp_router_fibmr_event_process(mlxsw_sp,
fib_event);
+ mutex_lock(&router->lock);
break;
default:
WARN_ON_ONCE(1);
}
+ last_family = fib_event->family;
kfree(fib_event);
cond_resched();
}
+ mutex_unlock(&router->lock);
}
static void mlxsw_sp_router_fib4_event(struct mlxsw_sp_fib_event *fib_event,
@@ -8213,6 +8252,7 @@ static const struct mlxsw_sp_router_ll_ops mlxsw_sp_router_ll_basic_ops = {
.ralta_write = mlxsw_sp_router_ll_basic_ralta_write,
.ralst_write = mlxsw_sp_router_ll_basic_ralst_write,
.raltb_write = mlxsw_sp_router_ll_basic_raltb_write,
+ .fib_entry_op_ctx_size = sizeof(struct mlxsw_sp_fib_entry_op_ctx_basic),
.fib_entry_pack = mlxsw_sp_router_ll_basic_fib_entry_pack,
.fib_entry_act_remote_pack = mlxsw_sp_router_ll_basic_fib_entry_act_remote_pack,
.fib_entry_act_local_pack = mlxsw_sp_router_ll_basic_fib_entry_act_local_pack,
@@ -8221,6 +8261,29 @@ static const struct mlxsw_sp_router_ll_ops mlxsw_sp_router_ll_basic_ops = {
.fib_entry_commit = mlxsw_sp_router_ll_basic_fib_entry_commit,
};
+static int mlxsw_sp_router_ll_op_ctx_init(struct mlxsw_sp_router *router)
+{
+ size_t max_size = 0;
+ int i;
+
+ for (i = 0; i < MLXSW_SP_L3_PROTO_MAX; i++) {
+ size_t size = router->proto_ll_ops[i]->fib_entry_op_ctx_size;
+
+ if (size > max_size)
+ max_size = size;
+ }
+ router->ll_op_ctx = kzalloc(sizeof(*router->ll_op_ctx) + max_size,
+ GFP_KERNEL);
+ if (!router->ll_op_ctx)
+ return -ENOMEM;
+ return 0;
+}
+
+static void mlxsw_sp_router_ll_op_ctx_fini(struct mlxsw_sp_router *router)
+{
+ kfree(router->ll_op_ctx);
+}
+
int mlxsw_sp_router_init(struct mlxsw_sp *mlxsw_sp,
struct netlink_ext_ack *extack)
{
@@ -8237,6 +8300,10 @@ int mlxsw_sp_router_init(struct mlxsw_sp *mlxsw_sp,
router->proto_ll_ops[MLXSW_SP_L3_PROTO_IPV4] = &mlxsw_sp_router_ll_basic_ops;
router->proto_ll_ops[MLXSW_SP_L3_PROTO_IPV6] = &mlxsw_sp_router_ll_basic_ops;
+ err = mlxsw_sp_router_ll_op_ctx_init(router);
+ if (err)
+ goto err_ll_op_ctx_init;
+
INIT_LIST_HEAD(&mlxsw_sp->router->nexthop_neighs_list);
err = __mlxsw_sp_router_init(mlxsw_sp);
if (err)
@@ -8343,6 +8410,8 @@ err_ipips_init:
err_rifs_init:
__mlxsw_sp_router_fini(mlxsw_sp);
err_router_init:
+ mlxsw_sp_router_ll_op_ctx_fini(router);
+err_ll_op_ctx_init:
mutex_destroy(&mlxsw_sp->router->lock);
kfree(mlxsw_sp->router);
return err;
@@ -8366,6 +8435,7 @@ void mlxsw_sp_router_fini(struct mlxsw_sp *mlxsw_sp)
mlxsw_sp_ipips_fini(mlxsw_sp);
mlxsw_sp_rifs_fini(mlxsw_sp);
__mlxsw_sp_router_fini(mlxsw_sp);
+ mlxsw_sp_router_ll_op_ctx_fini(mlxsw_sp->router);
mutex_destroy(&mlxsw_sp->router->lock);
kfree(mlxsw_sp->router);
}
diff --git a/drivers/net/ethernet/mellanox/mlxsw/spectrum_router.h b/drivers/net/ethernet/mellanox/mlxsw/spectrum_router.h
index 859a5c5d51d0..9db1e3da0e0c 100644
--- a/drivers/net/ethernet/mellanox/mlxsw/spectrum_router.h
+++ b/drivers/net/ethernet/mellanox/mlxsw/spectrum_router.h
@@ -15,6 +15,23 @@ struct mlxsw_sp_router_nve_decap {
u8 valid:1;
};
+struct mlxsw_sp_fib_entry_op_ctx {
+ u8 bulk_ok:1, /* Indicate to the low-level op it is ok to bulk
+ * the actual entry with the one that is the next
+ * in queue.
+ */
+ initialized:1; /* Bit that the low-level op sets in case
+ * the context priv is initialized.
+ */
+ unsigned long ll_priv[];
+};
+
+static inline void
+mlxsw_sp_fib_entry_op_ctx_clear(struct mlxsw_sp_fib_entry_op_ctx *op_ctx)
+{
+ memset(op_ctx, 0, sizeof(*op_ctx));
+}
+
struct mlxsw_sp_router {
struct mlxsw_sp *mlxsw_sp;
struct mlxsw_sp_rif **rifs;
@@ -53,6 +70,7 @@ struct mlxsw_sp_router {
spinlock_t fib_event_queue_lock; /* Protects fib event queue list */
/* One set of ops for each protocol: IPv4 and IPv6 */
const struct mlxsw_sp_router_ll_ops *proto_ll_ops[MLXSW_SP_L3_PROTO_MAX];
+ struct mlxsw_sp_fib_entry_op_ctx *ll_op_ctx;
};
enum mlxsw_sp_fib_entry_op {
@@ -60,11 +78,6 @@ enum mlxsw_sp_fib_entry_op {
MLXSW_SP_FIB_ENTRY_OP_DELETE,
};
-struct mlxsw_sp_fib_entry_op_ctx {
- u8 bulk_ok:1;
- char ralue_pl[MLXSW_REG_RALUE_LEN];
-};
-
/* Low-level router ops. Basically this is to handle the different
* register sets to work with ordinary and XM trees and FIB entries.
*/
@@ -72,6 +85,7 @@ struct mlxsw_sp_router_ll_ops {
int (*ralta_write)(struct mlxsw_sp *mlxsw_sp, char *xralta_pl);
int (*ralst_write)(struct mlxsw_sp *mlxsw_sp, char *xralst_pl);
int (*raltb_write)(struct mlxsw_sp *mlxsw_sp, char *xraltb_pl);
+ size_t fib_entry_op_ctx_size;
void (*fib_entry_pack)(struct mlxsw_sp_fib_entry_op_ctx *op_ctx,
enum mlxsw_sp_l3proto proto, enum mlxsw_sp_fib_entry_op op,
u16 virtual_router, u8 prefix_len, unsigned char *addr);
generated by cgit v1.2.3 (git 2.39.1) at 2024-07-20 19:46:07 +0000