target/linux/layerscape/patches-5.4/701-net-0298-staging-fsl_ppfe-eth-HW-parse-results-for-DPDK.patch

   1 From fd2bdf555ab192a96a44fa02f701095b24448d47 Mon Sep 17 00:00:00 2001
   2 From: anuj batham <anuj.batham@nxp.com>
   3 Date: Fri, 27 Apr 2018 14:38:09 +0530
   4 Subject: [PATCH] staging: fsl_ppfe/eth: HW parse results for DPDK
   5
   6 HW Parse results are included in the packet headroom.
   7 Length and Offset calculation now accommodates parse info size.
   8
   9 Signed-off-by: Archana Madhavan <archana.madhavan@nxp.com>
  10 ---
  11  drivers/staging/fsl_ppfe/pfe_hif_lib.c | 7 +++++--
  12  drivers/staging/fsl_ppfe/pfe_hif_lib.h | 1 +
  13  2 files changed, 6 insertions(+), 2 deletions(-)
  14
  15 --- a/drivers/staging/fsl_ppfe/pfe_hif_lib.c
  16 +++ b/drivers/staging/fsl_ppfe/pfe_hif_lib.c
  17 @@ -435,6 +435,7 @@ void *hif_lib_receive_pkt(struct hif_cli
  18                         u16 size = *rx_ctrl >> HIF_CTRL_RX_OFFSET_OFST;
  19
  20                         if (size) {
  21 +                               size += PFE_PARSE_INFO_SIZE;
  22                                 *len = CL_DESC_BUF_LEN(desc->ctrl) -
  23                                                 PFE_PKT_HEADER_SZ - size;
  24                                 *ofst = pfe_pkt_headroom + PFE_PKT_HEADER_SZ
  25 @@ -442,8 +443,10 @@ void *hif_lib_receive_pkt(struct hif_cli
  26                                 *priv_data = desc->data + PFE_PKT_HEADER_SZ;
  27                         } else {
  28                                 *len = CL_DESC_BUF_LEN(desc->ctrl) -
  29 -                                               PFE_PKT_HEADER_SZ;
  30 -                               *ofst = pfe_pkt_headroom + PFE_PKT_HEADER_SZ;
  31 +                                      PFE_PKT_HEADER_SZ - PFE_PARSE_INFO_SIZE;
  32 +                               *ofst = pfe_pkt_headroom
  33 +                                       + PFE_PKT_HEADER_SZ
  34 +                                       + PFE_PARSE_INFO_SIZE;
  35                                 *priv_data = NULL;
  36                         }
  37
  38 --- a/drivers/staging/fsl_ppfe/pfe_hif_lib.h
  39 +++ b/drivers/staging/fsl_ppfe/pfe_hif_lib.h
  40 @@ -23,6 +23,7 @@
  41
  42  #define HIF_CL_REQ_TIMEOUT     10
  43  #define GFP_DMA_PFE 0
  44 +#define PFE_PARSE_INFO_SIZE    16
  45
  46  enum {
  47         REQUEST_CL_REGISTER = 0,