diff options
| author | Sunil Goutham <sgoutham@marvell.com> | 2018-11-19 16:17:27 +0530 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2018-11-19 17:56:07 -0800 |
| commit | f92749586176f884044f47da62dcc231f6b43cd5 (patch) | |
| tree | 0e9729966bd36cf06ca56254dd38378a26bec96b /drivers/net/ethernet/marvell/octeontx2/af/mbox.h | |
| parent | 0964fc8f5f30f4ec7cce4c7a09c547ac87b4ed25 (diff) | |
| download | lwn-f92749586176f884044f47da62dcc231f6b43cd5.tar.gz lwn-f92749586176f884044f47da62dcc231f6b43cd5.zip | |
octeontx2-af: NPC MCAM entry alloc/free support
This patch adds NPC MCAM entry management and support for
allocating and freeing them via mailbox. Both contiguous and
non-contiguous allocations are supported. Incase of contiguous,
if request cannot be met then max contiguous number of available
entries are allocated.
High or low priority index allocation w.r.t a reference MCAM index
is also supported.
Signed-off-by: Sunil Goutham <sgoutham@marvell.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net/ethernet/marvell/octeontx2/af/mbox.h')
| -rw-r--r-- | drivers/net/ethernet/marvell/octeontx2/af/mbox.h | 49 |
1 files changed, 49 insertions, 0 deletions
diff --git a/drivers/net/ethernet/marvell/octeontx2/af/mbox.h b/drivers/net/ethernet/marvell/octeontx2/af/mbox.h index 7a229a54b9a3..5a635828493b 100644 --- a/drivers/net/ethernet/marvell/octeontx2/af/mbox.h +++ b/drivers/net/ethernet/marvell/octeontx2/af/mbox.h @@ -149,6 +149,10 @@ M(NPA_HWCTX_DISABLE, 0x403, npa_hwctx_disable, hwctx_disable_req, msg_rsp)\ /* TIM mbox IDs (range 0x800 - 0x9FF) */ \ /* CPT mbox IDs (range 0xA00 - 0xBFF) */ \ /* NPC mbox IDs (range 0x6000 - 0x7FFF) */ \ +M(NPC_MCAM_ALLOC_ENTRY, 0x6000, npc_mcam_alloc_entry, npc_mcam_alloc_entry_req,\ + npc_mcam_alloc_entry_rsp) \ +M(NPC_MCAM_FREE_ENTRY, 0x6001, npc_mcam_free_entry, \ + npc_mcam_free_entry_req, msg_rsp) \ /* NIX mbox IDs (range 0x8000 - 0xFFFF) */ \ M(NIX_LF_ALLOC, 0x8000, nix_lf_alloc, \ nix_lf_alloc_req, nix_lf_alloc_rsp) \ @@ -353,6 +357,8 @@ struct hwctx_disable_req { u8 ctype; }; +/* NIX mbox message formats */ + /* NIX mailbox error codes * Range 401 - 500. */ @@ -541,4 +547,47 @@ struct nix_frs_cfg { u16 minlen; }; +/* NPC mbox message structs */ + +#define NPC_MCAM_ENTRY_INVALID 0xFFFF +#define NPC_MCAM_INVALID_MAP 0xFFFF + +/* NPC mailbox error codes + * Range 701 - 800. + */ +enum npc_af_status { + NPC_MCAM_INVALID_REQ = -701, + NPC_MCAM_ALLOC_DENIED = -702, + NPC_MCAM_ALLOC_FAILED = -703, + NPC_MCAM_PERM_DENIED = -704, +}; + +struct npc_mcam_alloc_entry_req { + struct mbox_msghdr hdr; +#define NPC_MAX_NONCONTIG_ENTRIES 256 + u8 contig; /* Contiguous entries ? */ +#define NPC_MCAM_ANY_PRIO 0 +#define NPC_MCAM_LOWER_PRIO 1 +#define NPC_MCAM_HIGHER_PRIO 2 + u8 priority; /* Lower or higher w.r.t ref_entry */ + u16 ref_entry; + u16 count; /* Number of entries requested */ +}; + +struct npc_mcam_alloc_entry_rsp { + struct mbox_msghdr hdr; + u16 entry; /* Entry allocated or start index if contiguous. + * Invalid incase of non-contiguous. + */ + u16 count; /* Number of entries allocated */ + u16 free_count; /* Number of entries available */ + u16 entry_list[NPC_MAX_NONCONTIG_ENTRIES]; +}; + +struct npc_mcam_free_entry_req { + struct mbox_msghdr hdr; + u16 entry; /* Entry index to be freed */ + u8 all; /* If all entries allocated to this PFVF to be freed */ +}; + #endif /* MBOX_H */ |