package/boot/uboot-layerscape/patches/0066-armv8-pfe-Enable-UDP-checksum-for-proper-tftp-operat.patch

   1 From 35efc0f34b56ca9d5fb5d080d5de0833ded7e3b8 Mon Sep 17 00:00:00 2001
   2 From: Anji J <anji.jagarlmudi@freescale.com>
   3 Date: Tue, 21 Jun 2016 13:25:12 +0530
   4 Subject: [PATCH 66/93] armv8:pfe Enable UDP checksum for proper tftp
   5  operation
   6
   7 1. Add CONFIG_UDP_CHECKSUM flag to perform UDP checksum in S/W
   8    instead of hardware
   9 2. Rx descriptor model changed back to original
  10    removed strobe mode
  11 3. Send more than one dummy packets to bring HIF BD to idle state
  12
  13 Signed-off-by: Anji J <anji.jagarlmudi@freescale.com>
  14 ---
  15  common/cmd_pfe_commands.c        |   12 +++++++-----
  16  drivers/net/pfe_eth/pfe_driver.c |   19 +++----------------
  17  include/configs/ls1012a_common.h |    1 +
  18  3 files changed, 11 insertions(+), 21 deletions(-)
  19
  20 diff --git a/common/cmd_pfe_commands.c b/common/cmd_pfe_commands.c
  21 index 92917e0..3575ad4 100644
  22 --- a/common/cmd_pfe_commands.c
  23 +++ b/common/cmd_pfe_commands.c
  24 @@ -929,7 +929,7 @@ static void send_dummy_pkt_to_hif(void)
  25
  26  static void pfe_command_stop(int argc, char * const argv[])
  27  {
  28 -       int id;
  29 +       int id, hif_stop_loop = 10;
  30         u32 rx_status;
  31         printf("Stopping PFE... \n");
  32
  33 @@ -937,10 +937,12 @@ static void pfe_command_stop(int argc, char * const argv[])
  34         hif_rx_desc_disable();
  35
  36         /*If HIF Rx BDP is busy send a dummy packet */
  37 -       rx_status = readl(HIF_RX_STATUS);
  38 -       if(rx_status & BDP_CSR_RX_DMA_ACTV)
  39 -               send_dummy_pkt_to_hif();
  40 -       udelay(10);
  41 +       do {
  42 +               rx_status = readl(HIF_RX_STATUS);
  43 +               if (rx_status & BDP_CSR_RX_DMA_ACTV)
  44 +                       send_dummy_pkt_to_hif();
  45 +               udelay(10);
  46 +       } while (hif_stop_loop--);
  47
  48         if(readl(HIF_RX_STATUS) & BDP_CSR_RX_DMA_ACTV)
  49                 printf("Unable to stop HIF\n");
  50 diff --git a/drivers/net/pfe_eth/pfe_driver.c b/drivers/net/pfe_eth/pfe_driver.c
  51 index e252fcf..6774fb4 100644
  52 --- a/drivers/net/pfe_eth/pfe_driver.c
  53 +++ b/drivers/net/pfe_eth/pfe_driver.c
  54 @@ -37,13 +37,8 @@ int pfe_recv(unsigned int *pkt_ptr, int *phy_port)
  55
  56         bd = rx_desc->rxBase + rx_desc->rxToRead;
  57
  58 -       if (bd->ctrl & BD_CTRL_DESC_EN) {
  59 -               if(!(readl(HIF_RX_STATUS) & BDP_CSR_RX_DMA_ACTV)){
  60 -                       /*If BDP is not active give write strobe */
  61 -                       writel((readl(HIF_RX_CTRL) | HIF_CTRL_BDP_CH_START_WSTB), HIF_RX_CTRL);
  62 -               }
  63 +       if (bd->ctrl & BD_CTRL_DESC_EN)
  64                 return len; //No pending Rx packet
  65 -       }
  66
  67         /* this len include hif_header(8bytes) */
  68         len = bd->ctrl & 0xFFFF;
  69 @@ -72,15 +67,10 @@ int pfe_recv(unsigned int *pkt_ptr, int *phy_port)
  70         *phy_port = hif_header->port_no;
  71         len -= sizeof(struct hif_header_s);
  72
  73 -#if defined(PFE_LS1012A_RESET_WA)
  74 -       /* reset bd control field */
  75 -       ctrl = (MAX_FRAME_SIZE | BD_CTRL_LAST_BD | BD_CTRL_LIFM | BD_CTRL_DESC_EN | BD_CTRL_DIR);
  76 -#else
  77         /* reset bd control field */
  78         ctrl = (MAX_FRAME_SIZE | BD_CTRL_LIFM | BD_CTRL_DESC_EN | BD_CTRL_DIR);
  79 -       /* If we use BD_CTRL_LAST_BD, rxToRead never changes */
  80         rx_desc->rxToRead = (rx_desc->rxToRead + 1) & (rx_desc->rxRingSize - 1);
  81 -#endif
  82 +
  83         bd->ctrl = ctrl;
  84         bd->status = 0;
  85
  86 @@ -363,11 +353,8 @@ static int hif_rx_desc_init(struct pfe *pfe)
  87
  88         memset(bd_va, 0, sizeof(struct bufDesc) * rx_desc->rxRingSize);
  89
  90 -#if defined(PFE_LS1012A_RESET_WA)
  91 -       ctrl = (MAX_FRAME_SIZE | BD_CTRL_LAST_BD | BD_CTRL_DESC_EN | BD_CTRL_DIR | BD_CTRL_LIFM);
  92 -#else
  93         ctrl = (MAX_FRAME_SIZE | BD_CTRL_DESC_EN | BD_CTRL_DIR | BD_CTRL_LIFM);
  94 -#endif
  95 +
  96         for (i=0; i < rx_desc->rxRingSize; i++) {
  97                 bd_va->next = (unsigned long)(bd_pa + 1);
  98                 bd_va->ctrl = ctrl;
  99 diff --git a/include/configs/ls1012a_common.h b/include/configs/ls1012a_common.h
 100 index 4c7c697..47b8ec3 100644
 101 --- a/include/configs/ls1012a_common.h
 102 +++ b/include/configs/ls1012a_common.h
 103 @@ -116,6 +116,7 @@
 104  #ifdef CONFIG_FSL_PPFE
 105  #define CONFIG_CMD_PFE_COMMANDS
 106  #define CONFIG_UTIL_PE_DISABLED
 107 +#define CONFIG_UDP_CHECKSUM
 108
 109  #endif
 110
 111 --
 112 1.7.9.5
 113