diff options
Diffstat (limited to 'drivers/net/cxgbe/mps_tcam.h')
| -rw-r--r-- | drivers/net/cxgbe/mps_tcam.h | 52 |
1 files changed, 52 insertions, 0 deletions
diff --git a/drivers/net/cxgbe/mps_tcam.h b/drivers/net/cxgbe/mps_tcam.h new file mode 100644 index 00000000..c3d6fe0d --- /dev/null +++ b/drivers/net/cxgbe/mps_tcam.h @@ -0,0 +1,52 @@ +/* SPDX-License-Identifier: BSD-3-Clause + * Copyright(c) 2018 Chelsio Communications. + * All rights reserved. + */ + +#ifndef _CXGBE_MPSTCAM_H_ +#define _CXGBE_MPSTCAM_H_ + +#include "common.h" + +enum { + MPS_ENTRY_UNUSED, /* Keep this first so memset 0 renders + * the correct state. Other states can + * be added in future like MPS_ENTRY_BUSY + * to reduce contention while mboxing + * the request to f/w or to denote attributes + * for a specific entry + */ + MPS_ENTRY_USED, +}; + +struct mps_tcam_entry { + u8 state; + u16 idx; + + /* add data here which uniquely defines an entry */ + u8 eth_addr[ETHER_ADDR_LEN]; + u8 mask[ETHER_ADDR_LEN]; + + struct mpstcam_table *mpstcam; /* backptr */ + rte_atomic32_t refcnt; +}; + +struct mpstcam_table { + u16 size; + rte_rwlock_t lock; + u16 free_idx; /* next free index */ + bool full; /* since free index can be present + * anywhere in the table, size and + * free_idx cannot alone determine + * if the table is full + */ + struct mps_tcam_entry entry[0]; +}; + +struct mpstcam_table *t4_init_mpstcam(struct adapter *adap); +void t4_cleanup_mpstcam(struct adapter *adap); +int cxgbe_mpstcam_alloc(struct port_info *pi, const u8 *mac, const u8 *mask); +int cxgbe_mpstcam_remove(struct port_info *pi, u16 idx); +int cxgbe_mpstcam_modify(struct port_info *pi, int idx, const u8 *addr); + +#endif /* _CXGBE_MPSTCAM_H_ */ |