diff options
| author | Haiyue Wang <haiyue.wang@intel.com> | 2021-03-31 10:08:37 +0800 |
|---|---|---|
| committer | Tony Nguyen <anthony.l.nguyen@intel.com> | 2021-04-23 09:34:19 -0700 |
| commit | 1f70dfc542e88492a3bba3017e5e286dab7d3be6 (patch) | |
| tree | 309688d123b4839245dd9483708c96f2278c71d0 /drivers/net/ethernet/intel/iavf | |
| parent | f3b9da31f0e36a3cd3edad51131d63c044cd1ec4 (diff) | |
iavf: redefine the magic number for FDIR GTP-U header fields
The flex-byte for GTP-U protocol header fields uses the magic number,
which is hard to maintain and understand, define the interested fields
with meaningful macro name, based on the GTP-U protocol stack:
GTP-U header
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| 0x1 |1|0|1|0|0| 0xff | Length |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| TEID = 1654 |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| Sequence Number = 0 |N-PDU Number=0 |NextExtHdr=0x85|
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
GTP-U Extension Header (PDU Session Container)
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| ExtHdrLen=2 |Type=0 | Spare |0|0| QFI | PPI | Spare |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| Padding |NextExtHdr=0x0 |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
Signed-off-by: Haiyue Wang <haiyue.wang@intel.com>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
Diffstat (limited to 'drivers/net/ethernet/intel/iavf')
| -rw-r--r-- | drivers/net/ethernet/intel/iavf/iavf_fdir.c | 15 |
1 files changed, 12 insertions, 3 deletions
diff --git a/drivers/net/ethernet/intel/iavf/iavf_fdir.c b/drivers/net/ethernet/intel/iavf/iavf_fdir.c index af872ea3163f..6146203efd84 100644 --- a/drivers/net/ethernet/intel/iavf/iavf_fdir.c +++ b/drivers/net/ethernet/intel/iavf/iavf_fdir.c @@ -54,8 +54,13 @@ iavf_fill_fdir_gtpu_hdr(struct iavf_fdir_fltr *fltr, #define IAVF_GTPU_HDR_TEID_OFFS0 4 #define IAVF_GTPU_HDR_TEID_OFFS1 6 #define IAVF_GTPU_HDR_N_PDU_AND_NEXT_EXTHDR_OFFS 10 +#define IAVF_GTPU_HDR_NEXT_EXTHDR_TYPE_MASK 0x00FF /* skip N_PDU */ +/* PDU Session Container Extension Header (PSC) */ +#define IAVF_GTPU_PSC_EXTHDR_TYPE 0x85 #define IAVF_GTPU_HDR_PSC_PDU_TYPE_AND_QFI_OFFS 13 -#define IAVF_GTPU_PSC_EXTHDR_TYPE 0x85 /* PDU Session Container Extension Header */ +#define IAVF_GTPU_HDR_PSC_PDU_QFI_MASK 0x3F /* skip Type */ +#define IAVF_GTPU_EH_QFI_IDX 1 + if (fltr->flex_words[i].offset < adj_offs) return -EINVAL; @@ -71,7 +76,9 @@ iavf_fill_fdir_gtpu_hdr(struct iavf_fdir_fltr *fltr, } break; case IAVF_GTPU_HDR_N_PDU_AND_NEXT_EXTHDR_OFFS: - if ((fltr->flex_words[i].word & 0xff) != IAVF_GTPU_PSC_EXTHDR_TYPE) + if ((fltr->flex_words[i].word & + IAVF_GTPU_HDR_NEXT_EXTHDR_TYPE_MASK) != + IAVF_GTPU_PSC_EXTHDR_TYPE) return -EOPNOTSUPP; if (!ehdr) ehdr = &proto_hdrs->proto_hdr[proto_hdrs->count++]; @@ -80,7 +87,9 @@ iavf_fill_fdir_gtpu_hdr(struct iavf_fdir_fltr *fltr, case IAVF_GTPU_HDR_PSC_PDU_TYPE_AND_QFI_OFFS: if (!ehdr) return -EINVAL; - ehdr->buffer[1] = fltr->flex_words[i].word & 0x3F; + ehdr->buffer[IAVF_GTPU_EH_QFI_IDX] = + fltr->flex_words[i].word & + IAVF_GTPU_HDR_PSC_PDU_QFI_MASK; VIRTCHNL_ADD_PROTO_HDR_FIELD_BIT(ehdr, GTPU_EH, QFI); break; default: |