drivers/net/ethernet/intel/iavf/iavf_adv_rss.h

   1 /* SPDX-License-Identifier: GPL-2.0 */
   2 /* Copyright (c) 2021, Intel Corporation. */
   3
   4 #ifndef _IAVF_ADV_RSS_H_
   5 #define _IAVF_ADV_RSS_H_
   6
   7 struct iavf_adapter;
   8
   9 /* State of advanced RSS configuration */
  10 enum iavf_adv_rss_state_t {
  11         IAVF_ADV_RSS_ADD_REQUEST,       /* User requests to add RSS */
  12         IAVF_ADV_RSS_ADD_PENDING,       /* RSS pending add by the PF */
  13         IAVF_ADV_RSS_DEL_REQUEST,       /* Driver requests to delete RSS */
  14         IAVF_ADV_RSS_DEL_PENDING,       /* RSS pending delete by the PF */
  15         IAVF_ADV_RSS_ACTIVE,            /* RSS configuration is active */
  16 };
  17
  18 enum iavf_adv_rss_flow_seg_hdr {
  19         IAVF_ADV_RSS_FLOW_SEG_HDR_NONE  = 0x00000000,
  20         IAVF_ADV_RSS_FLOW_SEG_HDR_IPV4  = 0x00000001,
  21         IAVF_ADV_RSS_FLOW_SEG_HDR_IPV6  = 0x00000002,
  22         IAVF_ADV_RSS_FLOW_SEG_HDR_TCP   = 0x00000004,
  23         IAVF_ADV_RSS_FLOW_SEG_HDR_UDP   = 0x00000008,
  24         IAVF_ADV_RSS_FLOW_SEG_HDR_SCTP  = 0x00000010,
  25 };
  26
  27 #define IAVF_ADV_RSS_FLOW_SEG_HDR_L3            \
  28         (IAVF_ADV_RSS_FLOW_SEG_HDR_IPV4 |       \
  29          IAVF_ADV_RSS_FLOW_SEG_HDR_IPV6)
  30
  31 #define IAVF_ADV_RSS_FLOW_SEG_HDR_L4            \
  32         (IAVF_ADV_RSS_FLOW_SEG_HDR_TCP |        \
  33          IAVF_ADV_RSS_FLOW_SEG_HDR_UDP |        \
  34          IAVF_ADV_RSS_FLOW_SEG_HDR_SCTP)
  35
  36 enum iavf_adv_rss_flow_field {
  37         /* L3 */
  38         IAVF_ADV_RSS_FLOW_FIELD_IDX_IPV4_SA,
  39         IAVF_ADV_RSS_FLOW_FIELD_IDX_IPV4_DA,
  40         IAVF_ADV_RSS_FLOW_FIELD_IDX_IPV6_SA,
  41         IAVF_ADV_RSS_FLOW_FIELD_IDX_IPV6_DA,
  42         /* L4 */
  43         IAVF_ADV_RSS_FLOW_FIELD_IDX_TCP_SRC_PORT,
  44         IAVF_ADV_RSS_FLOW_FIELD_IDX_TCP_DST_PORT,
  45         IAVF_ADV_RSS_FLOW_FIELD_IDX_UDP_SRC_PORT,
  46         IAVF_ADV_RSS_FLOW_FIELD_IDX_UDP_DST_PORT,
  47         IAVF_ADV_RSS_FLOW_FIELD_IDX_SCTP_SRC_PORT,
  48         IAVF_ADV_RSS_FLOW_FIELD_IDX_SCTP_DST_PORT,
  49
  50         /* The total number of enums must not exceed 64 */
  51         IAVF_ADV_RSS_FLOW_FIELD_IDX_MAX
  52 };
  53
  54 #define IAVF_ADV_RSS_HASH_INVALID       0
  55 #define IAVF_ADV_RSS_HASH_FLD_IPV4_SA   \
  56         BIT_ULL(IAVF_ADV_RSS_FLOW_FIELD_IDX_IPV4_SA)
  57 #define IAVF_ADV_RSS_HASH_FLD_IPV6_SA   \
  58         BIT_ULL(IAVF_ADV_RSS_FLOW_FIELD_IDX_IPV6_SA)
  59 #define IAVF_ADV_RSS_HASH_FLD_IPV4_DA   \
  60         BIT_ULL(IAVF_ADV_RSS_FLOW_FIELD_IDX_IPV4_DA)
  61 #define IAVF_ADV_RSS_HASH_FLD_IPV6_DA   \
  62         BIT_ULL(IAVF_ADV_RSS_FLOW_FIELD_IDX_IPV6_DA)
  63 #define IAVF_ADV_RSS_HASH_FLD_TCP_SRC_PORT      \
  64         BIT_ULL(IAVF_ADV_RSS_FLOW_FIELD_IDX_TCP_SRC_PORT)
  65 #define IAVF_ADV_RSS_HASH_FLD_TCP_DST_PORT      \
  66         BIT_ULL(IAVF_ADV_RSS_FLOW_FIELD_IDX_TCP_DST_PORT)
  67 #define IAVF_ADV_RSS_HASH_FLD_UDP_SRC_PORT      \
  68         BIT_ULL(IAVF_ADV_RSS_FLOW_FIELD_IDX_UDP_SRC_PORT)
  69 #define IAVF_ADV_RSS_HASH_FLD_UDP_DST_PORT      \
  70         BIT_ULL(IAVF_ADV_RSS_FLOW_FIELD_IDX_UDP_DST_PORT)
  71 #define IAVF_ADV_RSS_HASH_FLD_SCTP_SRC_PORT     \
  72         BIT_ULL(IAVF_ADV_RSS_FLOW_FIELD_IDX_SCTP_SRC_PORT)
  73 #define IAVF_ADV_RSS_HASH_FLD_SCTP_DST_PORT     \
  74         BIT_ULL(IAVF_ADV_RSS_FLOW_FIELD_IDX_SCTP_DST_PORT)
  75
  76 /* bookkeeping of advanced RSS configuration */
  77 struct iavf_adv_rss {
  78         enum iavf_adv_rss_state_t state;
  79         struct list_head list;
  80
  81         u32 packet_hdrs;
  82         u64 hash_flds;
  83         bool symm;
  84
  85         struct virtchnl_rss_cfg cfg_msg;
  86 };
  87
  88 int
  89 iavf_fill_adv_rss_cfg_msg(struct virtchnl_rss_cfg *rss_cfg,
  90                           u32 packet_hdrs, u64 hash_flds, bool symm);
  91 struct iavf_adv_rss *
  92 iavf_find_adv_rss_cfg_by_hdrs(struct iavf_adapter *adapter, u32 packet_hdrs);
  93 void
  94 iavf_print_adv_rss_cfg(struct iavf_adapter *adapter, struct iavf_adv_rss *rss,
  95                        const char *action, const char *result);
  96 #endif /* _IAVF_ADV_RSS_H_ */