54 lines
1.2 KiB
C
54 lines
1.2 KiB
C
// SPDX-License-Identifier: GPL-2.0+
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#include "sparx5_main.h"
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void sparx5_pgid_init(struct sparx5 *spx5)
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{
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int i;
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for (i = 0; i < spx5->data->consts->n_pgids; i++)
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spx5->pgid_map[i] = SPX5_PGID_FREE;
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/* Reserved for unicast, flood control, broadcast, and CPU.
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* These cannot be freed.
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*/
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for (i = 0; i <= sparx5_get_pgid(spx5, PGID_CPU); i++)
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spx5->pgid_map[i] = SPX5_PGID_RESERVED;
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}
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int sparx5_pgid_alloc_mcast(struct sparx5 *spx5, u16 *idx)
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{
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int i;
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/* The multicast area starts at index 65, but the first 7
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* are reserved for flood masks and CPU. Start alloc after that.
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*/
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for (i = sparx5_get_pgid(spx5, PGID_MCAST_START);
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i < spx5->data->consts->n_pgids; i++) {
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if (spx5->pgid_map[i] == SPX5_PGID_FREE) {
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spx5->pgid_map[i] = SPX5_PGID_MULTICAST;
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*idx = i;
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return 0;
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}
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}
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return -EBUSY;
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}
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int sparx5_pgid_free(struct sparx5 *spx5, u16 idx)
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{
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if (idx <= sparx5_get_pgid(spx5, PGID_CPU) ||
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idx >= spx5->data->consts->n_pgids)
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return -EINVAL;
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if (spx5->pgid_map[idx] == SPX5_PGID_FREE)
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return -EINVAL;
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spx5->pgid_map[idx] = SPX5_PGID_FREE;
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return 0;
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}
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int sparx5_get_pgid(struct sparx5 *sparx5, int pgid)
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{
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return sparx5->data->consts->n_ports + pgid;
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}
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