target/linux/layerscape/patches-5.4/701-net-0154-soc-fsl-dpio-add-support-for-opr.patch

   1 From a0fd93952b6f0b408d96b29a0b9beb8bb2d8a24d Mon Sep 17 00:00:00 2001
   2 From: =?UTF-8?q?Horia=20Geant=C4=83?= <horia.geanta@nxp.com>
   3 Date: Wed, 10 Oct 2018 15:59:55 +0300
   4 Subject: [PATCH] soc: fsl: dpio: add support for opr
   5 MIME-Version: 1.0
   6 Content-Type: text/plain; charset=UTF-8
   7 Content-Transfer-Encoding: 8bit
   8
   9 Order preservation is a feature that will be supported
  10 in dpni, dpseci and dpci devices.
  11 This is a preliminary patch for the changes to be
  12 introduced in the corresponding drivers.
  13
  14 Signed-off-by: Radu Alexe <radu.alexe@nxp.com>
  15 Signed-off-by: Horia Geantă <horia.geanta@nxp.com>
  16 ---
  17  include/soc/fsl/dpaa2-global.h | 74 ++++++++++++++++++++++++++++++++++++++++++
  18  1 file changed, 74 insertions(+)
  19
  20 --- a/include/soc/fsl/dpaa2-global.h
  21 +++ b/include/soc/fsl/dpaa2-global.h
  22 @@ -189,4 +189,78 @@ static inline bool dpaa2_cscn_state_cong
  23         return !!(cscn->scn.state & DPAA2_CSCN_STATE_CG);
  24  }
  25
  26 +/* Data Path Order Restoration API
  27 + * Contains initialization APIs and runtime APIs for the Order Restoration
  28 + */
  29 +
  30 +/** Order Restoration properties */
  31 +
  32 +/**
  33 + * Create a new Order Point Record option
  34 + */
  35 +#define OPR_OPT_CREATE 0x1
  36 +/**
  37 + * Retire an existing Order Point Record option
  38 + */
  39 +#define OPR_OPT_RETIRE 0x2
  40 +
  41 +/**
  42 + * struct opr_cfg - Structure representing OPR configuration
  43 + * @oprrws: Order point record (OPR) restoration window size (0 to 5)
  44 + *                     0 - Window size is 32 frames.
  45 + *                     1 - Window size is 64 frames.
  46 + *                     2 - Window size is 128 frames.
  47 + *                     3 - Window size is 256 frames.
  48 + *                     4 - Window size is 512 frames.
  49 + *                     5 - Window size is 1024 frames.
  50 + * @oa: OPR auto advance NESN window size (0 disabled, 1 enabled)
  51 + * @olws: OPR acceptable late arrival window size (0 to 3)
  52 + *                     0 - Disabled. Late arrivals are always rejected.
  53 + *                     1 - Window size is 32 frames.
  54 + *                     2 - Window size is the same as the OPR restoration
  55 + *                             window size configured in the OPRRWS field.
  56 + *                     3 - Window size is 8192 frames. Late arrivals are
  57 + *                             always accepted.
  58 + * @oeane: Order restoration list (ORL) resource exhaustion
  59 + *                     advance NESN enable (0 disabled, 1 enabled)
  60 + * @oloe: OPR loose ordering enable (0 disabled, 1 enabled)
  61 + */
  62 +struct opr_cfg {
  63 +       u8 oprrws;
  64 +       u8 oa;
  65 +       u8 olws;
  66 +       u8 oeane;
  67 +       u8 oloe;
  68 +};
  69 +
  70 +/**
  71 + * struct opr_qry - Structure representing OPR configuration
  72 + * @enable: Enabled state
  73 + * @rip: Retirement In Progress
  74 + * @ndsn: Next dispensed sequence number
  75 + * @nesn: Next expected sequence number
  76 + * @ea_hseq: Early arrival head sequence number
  77 + * @hseq_nlis: HSEQ not last in sequence
  78 + * @ea_tseq: Early arrival tail sequence number
  79 + * @tseq_nlis: TSEQ not last in sequence
  80 + * @ea_tptr: Early arrival tail pointer
  81 + * @ea_hptr: Early arrival head pointer
  82 + * @opr_id: Order Point Record ID
  83 + * @opr_vid: Order Point Record Virtual ID
  84 + */
  85 +struct opr_qry {
  86 +       char enable;
  87 +       char rip;
  88 +       u16 ndsn;
  89 +       u16 nesn;
  90 +       u16 ea_hseq;
  91 +       char hseq_nlis;
  92 +       u16 ea_tseq;
  93 +       char tseq_nlis;
  94 +       u16 ea_tptr;
  95 +       u16 ea_hptr;
  96 +       u16 opr_id;
  97 +       u16 opr_vid;
  98 +};
  99 +
 100  #endif /* __FSL_DPAA2_GLOBAL_H */