[4361] | 1 | //////////////////////////////////////////////////////////////////////////////// |
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| 2 | // Copyright (c) 2004 Xilinx, Inc. All rights reserved. |
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| 3 | // |
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| 4 | // Xilinx, Inc. |
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| 5 | // XILINX IS PROVIDING THIS DESIGN, CODE, OR INFORMATION "AS IS" AS A |
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| 6 | // COURTESY TO YOU. BY PROVIDING THIS DESIGN, CODE, OR INFORMATION AS |
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| 7 | // ONE POSSIBLE IMPLEMENTATION OF THIS FEATURE, APPLICATION OR |
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| 8 | // STANDARD, XILINX IS MAKING NO REPRESENTATION THAT THIS IMPLEMENTATION |
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| 9 | // IS FREE FROM ANY CLAIMS OF INFRINGEMENT, AND YOU ARE RESPONSIBLE |
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| 10 | // FOR OBTAINING ANY RIGHTS YOU MAY REQUIRE FOR YOUR IMPLEMENTATION. |
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| 11 | // XILINX EXPRESSLY DISCLAIMS ANY WARRANTY WHATSOEVER WITH RESPECT TO |
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| 12 | // THE ADEQUACY OF THE IMPLEMENTATION, INCLUDING BUT NOT LIMITED TO |
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| 13 | // ANY WARRANTIES OR REPRESENTATIONS THAT THIS IMPLEMENTATION IS FREE |
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| 14 | // FROM CLAIMS OF INFRINGEMENT, IMPLIED WARRANTIES OF MERCHANTABILITY |
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| 15 | // AND FITNESS FOR A PARTICULAR PURPOSE. |
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| 16 | // |
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| 17 | // File : eth.c |
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| 18 | // Date : 2002, March 20. |
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| 19 | // Author : Sathya Thammanur |
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| 20 | // Company: Xilinx |
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| 21 | // Group : Emerging Software Technologies |
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| 22 | // |
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| 23 | // Summary: |
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| 24 | // Ethernet layer specific functions |
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| 25 | // |
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| 26 | // $Id: eth.c,v 1.2.8.6 2005/11/15 23:41:10 salindac Exp $ |
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| 27 | // |
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| 28 | //////////////////////////////////////////////////////////////////////////////// |
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| 29 | |
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| 30 | //////////////////////////////////////////////////////////////////////////////// |
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| 31 | // see copyright.txt for Rice University/Mango Communications modifications |
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| 32 | //////////////////////////////////////////////////////////////////////////////// |
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| 33 | |
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| 34 | |
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| 35 | /***************************** Include Files *********************************/ |
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| 36 | |
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| 37 | #include <string.h> |
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| 38 | #include <xilnet_config.h> |
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| 39 | #include <xilnet_xilsock.h> |
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| 40 | |
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| 41 | #include "xio.h" |
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| 42 | #include "stdio.h" |
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| 43 | |
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| 44 | |
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| 45 | /*************************** Constant Definitions ****************************/ |
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| 46 | |
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| 47 | // Defines for consolidated error message function |
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| 48 | #define XILNET_ETH_ERR_NUM_DEV 1 |
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| 49 | #define XILNET_ETH_ERR_USES_DRIVER 2 |
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| 50 | #define XILNET_ETH_ERR_INF_DNE 3 |
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| 51 | #define XILNET_ETH_ERR_INF_NOT_CONFIG 4 |
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| 52 | |
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| 53 | // #define _DEBUG_XILNET_HW_TABLE_ |
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| 54 | |
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| 55 | /*********************** Global Variable Definitions *************************/ |
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| 56 | |
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| 57 | |
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| 58 | |
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| 59 | /*************************** Variable Definitions ****************************/ |
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| 60 | |
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| 61 | |
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| 62 | // Xilnet HW Address Table |
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| 63 | // Note: There is only one address table to be shared among all the |
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| 64 | // Ethernet devices. This can be updated in the future. |
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| 65 | struct xilnet_hw_addr_table xilnet_hw_tbl[HW_ADDR_TBL_ENTRIES]; |
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| 66 | |
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| 67 | |
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| 68 | // Flags |
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| 69 | unsigned char ishwaddrinit = 0; |
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| 70 | static unsigned long long curr_age = 0; |
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| 71 | |
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| 72 | |
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| 73 | /*************************** Function Prototypes *****************************/ |
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| 74 | |
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| 75 | #ifdef _DEBUG_ |
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| 76 | void print_pkt(unsigned char *buf, int size); |
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| 77 | |
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| 78 | #if 0 |
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| 79 | void print_hw_tbl(); |
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| 80 | #endif |
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| 81 | |
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| 82 | #ifdef XILNET_AXI_DMA_INF_USED |
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| 83 | void print_XAxiDma_Bd( XAxiDma_Bd *BD_ptr ); |
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| 84 | void print_XAxiDma_BdRing( XAxiDma_BdRing *BD_RING_ptr ); |
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| 85 | void print_XAxiDma_Config( XAxiDma_Config * DMA_CFG_ptr ); |
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| 86 | #endif |
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| 87 | |
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| 88 | #ifdef XILNET_AXI_FIFO_INF_USED |
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| 89 | void print_XLlFifo( XLlFifo * FIFO_ptr ); |
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| 90 | #endif |
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| 91 | |
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| 92 | #endif |
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| 93 | |
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| 94 | |
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| 95 | /******************************** Functions **********************************/ |
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| 96 | |
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| 97 | void xilnet_eth_print_err_msg( unsigned int msg_num, unsigned int eth_dev_num ) { |
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| 98 | |
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| 99 | switch( msg_num ) { |
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| 100 | |
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| 101 | case XILNET_ETH_ERR_NUM_DEV: |
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| 102 | xil_printf(" **** ERROR: Trying to use Ethernet device %c. Only %d configured in the HW. \n", wn_conv_eth_dev_num(eth_dev_num), XILNET_NUM_ETH_DEVICES); |
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| 103 | break; |
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| 104 | |
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| 105 | case XILNET_ETH_ERR_USES_DRIVER: |
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| 106 | xil_printf(" **** ERROR: Ethernet device %c is not supported by the WARPxilnet library. \n", wn_conv_eth_dev_num(eth_dev_num) ); |
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| 107 | xil_printf(" Please check library configuration in the BSP. \n" ); |
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| 108 | break; |
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| 109 | |
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| 110 | case XILNET_ETH_ERR_INF_DNE: |
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| 111 | xil_printf(" **** ERROR: Trying to use Ethernet device %c. Interface %d does not exist. \n", wn_conv_eth_dev_num(eth_dev_num), eth_device[eth_dev_num].inf_type); |
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| 112 | break; |
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| 113 | |
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| 114 | case XILNET_ETH_ERR_INF_NOT_CONFIG: |
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| 115 | xil_printf(" **** ERROR: Trying to use Ethernet device %c. Driver not configured to use ", wn_conv_eth_dev_num(eth_dev_num)); |
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| 116 | break; |
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| 117 | } |
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| 118 | } |
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| 119 | |
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| 120 | |
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| 121 | |
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| 122 | int xilnet_eth_device_init( unsigned int eth_dev_num, |
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| 123 | unsigned int base_addr, |
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| 124 | unsigned char * node_ip_addr, |
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| 125 | unsigned char * node_hw_addr |
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| 126 | ) { |
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| 127 | |
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| 128 | int status; |
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| 129 | |
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| 130 | #ifdef XILNET_AXI_DMA_INF_USED |
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| 131 | XAxiDma_Bd BD_template; |
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| 132 | #endif |
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| 133 | |
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| 134 | // Check to see if we are initializing a valid interface |
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| 135 | if ( eth_dev_num >= XILNET_NUM_ETH_DEVICES ) { |
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| 136 | xilnet_eth_print_err_msg( XILNET_ETH_ERR_NUM_DEV, eth_dev_num ); |
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| 137 | return -1; |
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| 138 | } |
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| 139 | |
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| 140 | #ifdef _DEBUG_ |
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| 141 | xil_printf("xilnet_eth_device_init: Device %c \n", wn_conv_eth_dev_num(eth_dev_num) ); |
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| 142 | #endif |
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| 143 | |
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| 144 | // Initialize the Ethernet device structure |
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| 145 | xilnet_init_eth_device_struct(eth_dev_num); |
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| 146 | |
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| 147 | // Check to see if the xilnet driver uses the Ethernet instance |
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| 148 | if ( !eth_device[eth_dev_num].uses_driver ) { |
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| 149 | xilnet_eth_print_err_msg( XILNET_ETH_ERR_USES_DRIVER, eth_dev_num ); |
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| 150 | return -1; |
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| 151 | } |
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| 152 | |
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| 153 | // Set up HW info |
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| 154 | xilnet_eth_set_inf_hw_info(eth_dev_num, node_ip_addr, node_hw_addr); |
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| 155 | |
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| 156 | // Depending on the interface type, set up the device |
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| 157 | switch( eth_device[eth_dev_num].inf_type ) { |
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| 158 | |
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| 159 | case XILNET_AXI_FIFO_INF: |
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| 160 | |
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| 161 | #ifdef XILNET_AXI_FIFO_INF_USED |
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| 162 | |
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| 163 | xil_printf(" Configuring ETH %c for AXI FIFO mode with %d byte buffers (%d receive, 1 send)\n", wn_conv_eth_dev_num(eth_dev_num), eth_device[eth_dev_num].buf_size, eth_device[eth_dev_num].num_recvbuf ); |
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| 164 | |
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| 165 | XLlFifo_Initialize( eth_device[eth_dev_num].inf_ref, base_addr); |
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| 166 | |
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| 167 | #ifdef _DEBUG_ |
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| 168 | print_XLlFifo( eth_device[eth_dev_num].inf_ref ); |
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| 169 | #endif |
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| 170 | |
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| 171 | #else |
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| 172 | xilnet_eth_print_err_msg( XILNET_ETH_ERR_INF_NOT_CONFIG, eth_dev_num ); |
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| 173 | xil_printf("AXI FIFO. \n"); |
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| 174 | return -1; |
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| 175 | #endif |
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| 176 | break; |
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| 177 | |
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| 178 | |
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| 179 | case XILNET_AXI_DMA_INF: |
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| 180 | |
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| 181 | #ifdef XILNET_AXI_DMA_INF_USED |
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| 182 | xil_printf(" Configuring ETH %c for AXI DMA mode with %d byte buffers (%d receive, 1 send)\n", wn_conv_eth_dev_num(eth_dev_num), eth_device[eth_dev_num].buf_size, eth_device[eth_dev_num].num_recvbuf ); |
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| 183 | |
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| 184 | // Initialize DMA pointers |
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| 185 | eth_device[eth_dev_num].inf_cfg_ref = (void *) XAxiDma_LookupConfig( eth_device[eth_dev_num].inf_id ); |
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| 186 | eth_device[eth_dev_num].dma_rx_ring_ref = (void *) XAxiDma_GetRxRing( (XAxiDma *)eth_device[eth_dev_num].inf_ref ); |
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| 187 | eth_device[eth_dev_num].dma_tx_ring_ref = (void *) XAxiDma_GetTxRing( (XAxiDma *)eth_device[eth_dev_num].inf_ref ); |
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| 188 | |
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| 189 | #ifdef _DEBUG_ |
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| 190 | print_XAxiDma_Config( eth_device[eth_dev_num].inf_cfg_ref ); |
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| 191 | #endif |
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| 192 | |
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| 193 | // Initialize AXIDMA engine. AXIDMA engine must be initialized before AxiEthernet. |
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| 194 | // During AXIDMA engine initialization, AXIDMA hardware is reset, and since AXIDMA |
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| 195 | // reset line is connected to AxiEthernet, this would ensure a reset of AxiEthernet. |
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| 196 | |
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| 197 | status = XAxiDma_CfgInitialize( (XAxiDma *)eth_device[eth_dev_num].inf_ref, eth_device[eth_dev_num].inf_cfg_ref); |
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| 198 | if(status != XST_SUCCESS) { |
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| 199 | xil_printf("*** Error initializing DMA\n"); |
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| 200 | } |
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| 201 | |
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| 202 | // Setup RX BD space: |
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| 203 | // - RX_BD_space is a properly aligned area of memory |
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| 204 | // - No MMU is being used so the physical and virtual addresses are the same. |
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| 205 | // - Setup a BD template for the channel. This template will be copied to every BD. |
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| 206 | |
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| 207 | #ifdef _DEBUG_ |
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| 208 | xil_printf("RX BD Space = 0x%x\n", eth_device[eth_dev_num].dma_rx_bd_ref); |
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| 209 | #endif |
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| 210 | |
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| 211 | // Create the RX BD ring |
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| 212 | status = XAxiDma_BdRingCreate( eth_device[eth_dev_num].dma_rx_ring_ref, |
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| 213 | (u32) eth_device[eth_dev_num].dma_rx_bd_ref, |
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| 214 | (u32) eth_device[eth_dev_num].dma_rx_bd_ref, |
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| 215 | XILNET_BD_ALIGNMENT, |
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| 216 | eth_device[eth_dev_num].dma_rx_bd_cnt); |
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| 217 | if (status != XST_SUCCESS) { |
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| 218 | xil_printf("*** Error setting up RX BD space\n"); |
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| 219 | } |
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| 220 | |
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| 221 | XAxiDma_BdClear(&BD_template); |
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| 222 | |
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| 223 | status = XAxiDma_BdRingClone(eth_device[eth_dev_num].dma_rx_ring_ref, &BD_template); |
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| 224 | if (status != XST_SUCCESS) { |
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| 225 | xil_printf("*** Error initializing RX BD space\n"); |
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| 226 | } |
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| 227 | |
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| 228 | // Setup TX BD space: |
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| 229 | // - TX_BD_space is a properly aligned area of memory |
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| 230 | // - No MMU is being used so the physical and virtual addresses are the same. |
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| 231 | // - Setup a BD template for the channel. This template will be copied to every BD. |
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| 232 | |
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| 233 | #ifdef _DEBUG_ |
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| 234 | xil_printf("TX BD Space = 0x%x\n", eth_device[eth_dev_num].dma_tx_bd_ref); |
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| 235 | #endif |
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| 236 | |
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| 237 | // Create the TX BD ring |
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| 238 | status = XAxiDma_BdRingCreate( eth_device[eth_dev_num].dma_tx_ring_ref, |
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| 239 | (u32) eth_device[eth_dev_num].dma_tx_bd_ref, |
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| 240 | (u32) eth_device[eth_dev_num].dma_tx_bd_ref, |
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| 241 | XILNET_BD_ALIGNMENT, |
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| 242 | eth_device[eth_dev_num].dma_tx_bd_cnt); |
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| 243 | if (status != XST_SUCCESS) { |
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| 244 | xil_printf("*** Error setting up TX BD space\n"); |
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| 245 | } |
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| 246 | |
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| 247 | // We can re-use the BD_template from above |
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| 248 | status = XAxiDma_BdRingClone(eth_device[eth_dev_num].dma_tx_ring_ref, &BD_template); |
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| 249 | if (status != XST_SUCCESS) { |
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| 250 | xil_printf("*** Error initializing TX BD space\n"); |
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| 251 | } |
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| 252 | |
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| 253 | #else |
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| 254 | xilnet_eth_print_err_msg( XILNET_ETH_ERR_INF_NOT_CONFIG, eth_dev_num ); |
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| 255 | xil_printf("AXI DMA. \n"); |
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| 256 | return -1; |
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| 257 | #endif |
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| 258 | break; |
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| 259 | |
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| 260 | case XILNET_TEMAC_INF: |
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| 261 | |
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| 262 | #ifdef XILNET_TEMAC_INF_USED |
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| 263 | |
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| 264 | xil_printf(" Configuring ETH %c for TEMAC mode with %d byte buffers (%d receive, 1 send)\n", wn_conv_eth_dev_num(eth_dev_num), eth_device[eth_dev_num].buf_size, eth_device[eth_dev_num].num_recvbuf ); |
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| 265 | |
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| 266 | // Initialize DMA pointers |
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| 267 | eth_device[eth_dev_num].inf_dma_cfg_ref = (void *) XDmaCentral_LookupConfig( eth_device[eth_dev_num].inf_dma_id ); |
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| 268 | |
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| 269 | //Initialize the config struct |
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| 270 | status = XDmaCentral_CfgInitialize((XDmaCentral *) eth_device[eth_dev_num].inf_dma_ref, |
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| 271 | (XDmaCentral_Config *)eth_device[eth_dev_num].inf_dma_cfg_ref, |
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| 272 | ((XDmaCentral_Config *)eth_device[eth_dev_num].inf_dma_cfg_ref)->BaseAddress ); |
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| 273 | if(status != XST_SUCCESS) { |
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| 274 | xil_printf("*** Error initializing DMA\n"); |
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| 275 | } |
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| 276 | |
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| 277 | //Disable Interrupts |
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| 278 | XDmaCentral_InterruptEnableSet(eth_device[eth_dev_num].inf_dma_ref, 0); |
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| 279 | |
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| 280 | #ifdef _DEBUG_ |
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| 281 | xil_printf("Initializing FIFO: %x %x \n", eth_device[eth_dev_num].inf_ref, base_addr); |
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| 282 | #endif |
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| 283 | |
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| 284 | // Initialize the FIFO |
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| 285 | XLlFifo_Initialize( eth_device[eth_dev_num].inf_ref, base_addr); |
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| 286 | |
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| 287 | |
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| 288 | #else |
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| 289 | xilnet_eth_print_err_msg( XILNET_ETH_ERR_INF_NOT_CONFIG, eth_dev_num ); |
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| 290 | xil_printf("TEMAC. \n"); |
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| 291 | return -1; |
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| 292 | #endif |
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| 293 | break; |
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| 294 | |
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| 295 | default: |
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| 296 | xilnet_eth_print_err_msg( XILNET_ETH_ERR_INF_DNE, eth_dev_num ); |
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| 297 | return -1; |
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| 298 | break; |
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| 299 | } |
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| 300 | |
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| 301 | #ifdef _DEBUG_ |
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| 302 | xil_printf("xilnet_eth_device_init done\n"); |
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| 303 | #endif |
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| 304 | |
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| 305 | return 0; |
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| 306 | } |
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| 307 | |
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| 308 | |
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| 309 | |
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| 310 | int xilnet_eth_set_inf_hw_info( unsigned int eth_dev_num, unsigned char * node_ip_addr, unsigned char * node_hw_addr ) { |
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| 311 | |
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| 312 | int i; |
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| 313 | |
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| 314 | // Check to see if we are initializing a valid interface |
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| 315 | if ( eth_dev_num >= XILNET_NUM_ETH_DEVICES ) { |
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| 316 | xilnet_eth_print_err_msg( XILNET_ETH_ERR_NUM_DEV, eth_dev_num ); |
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| 317 | return -1; |
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| 318 | } |
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| 319 | |
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| 320 | // Check to see if the xilnet driver uses the Ethernet instance |
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| 321 | if ( !eth_device[eth_dev_num].uses_driver ) { |
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| 322 | xilnet_eth_print_err_msg( XILNET_ETH_ERR_USES_DRIVER, eth_dev_num ); |
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| 323 | return -1; |
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| 324 | } |
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| 325 | |
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| 326 | #ifdef _DEBUG_ |
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| 327 | xil_printf("Setting IP Address: %d.%d.%d.%d \n", node_ip_addr[0], node_ip_addr[1], node_ip_addr[2], node_ip_addr[3]); |
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| 328 | xil_printf("Setting HW Address: %2x-%2x-%2x-%2x-%2x-%2x \n", node_hw_addr[0], node_hw_addr[1], node_hw_addr[2], node_hw_addr[3], node_hw_addr[4], node_hw_addr[5]); |
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| 329 | #endif |
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| 330 | |
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| 331 | // Update the IP Address |
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| 332 | for ( i = 0; i < IP_VERSION; i++) { |
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| 333 | eth_device[eth_dev_num].node_ip_addr[i] = node_ip_addr[i]; |
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| 334 | } |
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| 335 | |
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| 336 | // Update the MAC Address |
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| 337 | for ( i = 0; i < ETH_ADDR_LEN; i++ ) { |
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| 338 | eth_device[eth_dev_num].node_hw_addr[i] = node_hw_addr[i]; |
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| 339 | } |
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| 340 | |
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| 341 | return 0; |
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| 342 | } |
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| 343 | |
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| 344 | |
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| 345 | |
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| 346 | int xilnet_eth_get_inf_ip_addr( unsigned int eth_dev_num, unsigned char * node_ip_addr ) { |
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| 347 | |
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| 348 | int i; |
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| 349 | |
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| 350 | // Check to see if we are initializing a valid interface |
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| 351 | if ( eth_dev_num >= XILNET_NUM_ETH_DEVICES ) { |
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| 352 | xilnet_eth_print_err_msg( XILNET_ETH_ERR_NUM_DEV, eth_dev_num ); |
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| 353 | return -1; |
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| 354 | } |
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| 355 | |
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| 356 | // Check to see if the xilnet driver uses the Ethernet instance |
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| 357 | if ( !eth_device[eth_dev_num].uses_driver ) { |
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| 358 | xilnet_eth_print_err_msg( XILNET_ETH_ERR_USES_DRIVER, eth_dev_num ); |
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| 359 | return -1; |
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| 360 | } |
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| 361 | |
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| 362 | // Update the IP Address |
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| 363 | for ( i = 0; i < IP_VERSION; i++) { |
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| 364 | node_ip_addr[i] = eth_device[eth_dev_num].node_ip_addr[i]; |
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| 365 | } |
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| 366 | |
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| 367 | #ifdef _DEBUG_ |
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| 368 | xil_printf("Getting IP Address: %d.%d.%d.%d \n", node_ip_addr[0], node_ip_addr[1], node_ip_addr[2], node_ip_addr[3]); |
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| 369 | #endif |
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| 370 | |
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| 371 | return 0; |
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| 372 | } |
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| 373 | |
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| 374 | |
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| 375 | |
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| 376 | int xilnet_eth_get_inf_hw_addr( unsigned int eth_dev_num, unsigned char * node_hw_addr ) { |
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| 377 | |
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| 378 | int i; |
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| 379 | |
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| 380 | // Check to see if we are initializing a valid interface |
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| 381 | if ( eth_dev_num >= XILNET_NUM_ETH_DEVICES ) { |
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| 382 | xilnet_eth_print_err_msg( XILNET_ETH_ERR_NUM_DEV, eth_dev_num ); |
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| 383 | return -1; |
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| 384 | } |
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| 385 | |
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| 386 | // Check to see if the xilnet driver uses the Ethernet instance |
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| 387 | if ( !eth_device[eth_dev_num].uses_driver ) { |
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| 388 | xilnet_eth_print_err_msg( XILNET_ETH_ERR_USES_DRIVER, eth_dev_num ); |
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| 389 | return -1; |
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| 390 | } |
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| 391 | |
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| 392 | // Update the MAC Address |
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| 393 | for ( i = 0; i < ETH_ADDR_LEN; i++ ) { |
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| 394 | node_hw_addr[i] = eth_device[eth_dev_num].node_hw_addr[i]; |
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| 395 | } |
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| 396 | |
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| 397 | #ifdef _DEBUG_ |
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| 398 | xil_printf("Getting HW Address: %2x-%2x-%2x-%2x-%2x-%2x \n", node_hw_addr[0], node_hw_addr[1], node_hw_addr[2], node_hw_addr[3], node_hw_addr[4], node_hw_addr[5]); |
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| 399 | #endif |
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| 400 | |
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| 401 | return 0; |
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| 402 | } |
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| 403 | |
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| 404 | |
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| 405 | |
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| 406 | int xilnet_eth_device_start( unsigned int eth_dev_num ) { |
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| 407 | |
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| 408 | int status; |
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| 409 | int i; |
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| 410 | int free_BD_count; |
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| 411 | |
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| 412 | #ifdef XILNET_AXI_DMA_INF_USED |
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| 413 | unsigned int rx_buffer_address; |
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| 414 | XAxiDma_BdRing *RX_RING_ptr; |
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| 415 | XAxiDma_Bd *BD_ptr; |
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| 416 | XAxiDma_Bd *BD_cur_ptr; |
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| 417 | #endif |
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| 418 | |
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| 419 | // Check to see if we are initializing a valid interface |
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| 420 | if ( eth_dev_num >= XILNET_NUM_ETH_DEVICES ) { |
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| 421 | xilnet_eth_print_err_msg( XILNET_ETH_ERR_NUM_DEV, eth_dev_num ); |
---|
| 422 | return -1; |
---|
| 423 | } |
---|
| 424 | |
---|
| 425 | // Check to see if the xilnet driver uses the Ethernet instance |
---|
| 426 | if ( !eth_device[eth_dev_num].uses_driver ) { |
---|
| 427 | xilnet_eth_print_err_msg( XILNET_ETH_ERR_USES_DRIVER, eth_dev_num ); |
---|
| 428 | return -1; |
---|
| 429 | } |
---|
| 430 | |
---|
| 431 | // Depending on the interface type, set up the device |
---|
| 432 | switch( eth_device[eth_dev_num].inf_type ) { |
---|
| 433 | |
---|
| 434 | case XILNET_AXI_FIFO_INF: |
---|
| 435 | |
---|
| 436 | #ifdef XILNET_AXI_FIFO_INF_USED |
---|
| 437 | // Do nothing, interface is already ready to go |
---|
| 438 | |
---|
| 439 | #ifdef _DEBUG_ |
---|
| 440 | xil_printf("Starting Ethernet Device %c with AXI FIFO\n", wn_conv_eth_dev_num(eth_dev_num) ); |
---|
| 441 | #endif |
---|
| 442 | |
---|
| 443 | #else |
---|
| 444 | xilnet_eth_print_err_msg( XILNET_ETH_ERR_INF_NOT_CONFIG, eth_dev_num ); |
---|
| 445 | xil_printf("AXI FIFO. \n"); |
---|
| 446 | return -1; |
---|
| 447 | #endif |
---|
| 448 | |
---|
| 449 | break; |
---|
| 450 | |
---|
| 451 | |
---|
| 452 | case XILNET_AXI_DMA_INF: |
---|
| 453 | |
---|
| 454 | #ifdef XILNET_AXI_DMA_INF_USED |
---|
| 455 | |
---|
| 456 | // Get the TX Buffer Descriptor Ring pointer |
---|
| 457 | RX_RING_ptr = (XAxiDma_BdRing *)eth_device[eth_dev_num].dma_rx_ring_ref; |
---|
| 458 | |
---|
| 459 | // Initialize RX BD space: |
---|
| 460 | // - Configure buffer descriptors |
---|
| 461 | free_BD_count = XAxiDma_BdRingGetFreeCnt(RX_RING_ptr); |
---|
| 462 | |
---|
| 463 | // Allocate receive buffers |
---|
| 464 | status = XAxiDma_BdRingAlloc(RX_RING_ptr, free_BD_count, &BD_ptr); |
---|
| 465 | if (status != XST_SUCCESS) { |
---|
| 466 | xil_printf("*** Error allocating RxBD\n"); |
---|
| 467 | return -1; |
---|
| 468 | } |
---|
| 469 | |
---|
| 470 | #ifdef _DEBUG_ |
---|
| 471 | xil_printf("Recieve Buffer = 0x%x size= %d \n", eth_device[eth_dev_num].recvbuf, sizeof(eth_device[eth_dev_num].recvbuf)); |
---|
| 472 | print_XAxiDma_Bd( BD_ptr ); |
---|
| 473 | #endif |
---|
| 474 | |
---|
| 475 | if ( eth_device[eth_dev_num].num_recvbuf != free_BD_count ) { |
---|
| 476 | xil_printf("*** Error number of receive buffers %d not equal to number of buffer descriptors %d \n", eth_device[eth_dev_num].num_recvbuf, free_BD_count); |
---|
| 477 | return -1; |
---|
| 478 | } |
---|
| 479 | |
---|
| 480 | // Setup the Buffer descriptors |
---|
| 481 | BD_cur_ptr = BD_ptr; |
---|
| 482 | for ( i = 0; i < free_BD_count; i++ ){ |
---|
| 483 | rx_buffer_address = (u32)((u32)(eth_device[eth_dev_num].recvbuf) + (u32)(i * eth_device[eth_dev_num].buf_size)); |
---|
| 484 | |
---|
| 485 | XAxiDma_BdSetBufAddr(BD_cur_ptr, rx_buffer_address); |
---|
| 486 | XAxiDma_BdSetLength(BD_cur_ptr, eth_device[eth_dev_num].buf_size, RX_RING_ptr->MaxTransferLen); |
---|
| 487 | XAxiDma_BdSetCtrl(BD_cur_ptr, 0); |
---|
| 488 | XAxiDma_BdSetId(BD_cur_ptr, rx_buffer_address); |
---|
| 489 | |
---|
| 490 | BD_cur_ptr = XAxiDma_BdRingNext(RX_RING_ptr, BD_cur_ptr); |
---|
| 491 | } |
---|
| 492 | |
---|
| 493 | |
---|
| 494 | // Enqueue to HW |
---|
| 495 | status = XAxiDma_BdRingToHw(RX_RING_ptr, free_BD_count, BD_ptr); |
---|
| 496 | if (status != XST_SUCCESS) { |
---|
| 497 | xil_printf("*** Error committing RxBD to HW\n"); |
---|
| 498 | return -1; |
---|
| 499 | } |
---|
| 500 | |
---|
| 501 | #ifdef _DEBUG_ |
---|
| 502 | xil_printf("ETH_B_DMA_RX_RING_ptr: \n"); |
---|
| 503 | print_XAxiDma_BdRing( RX_RING_ptr ); |
---|
| 504 | print_XAxiDma_Bd( BD_ptr ); |
---|
| 505 | #endif |
---|
| 506 | |
---|
| 507 | // Start DMA RX channel. Now it's ready to receive data. |
---|
| 508 | status = XAxiDma_BdRingStart( RX_RING_ptr ); |
---|
| 509 | if (status != XST_SUCCESS) { |
---|
| 510 | xil_printf("*** Error starting RX channel\n"); |
---|
| 511 | return -1; |
---|
| 512 | } |
---|
| 513 | |
---|
| 514 | #else |
---|
| 515 | xilnet_eth_print_err_msg( XILNET_ETH_ERR_INF_NOT_CONFIG, eth_dev_num ); |
---|
| 516 | xil_printf("AXI DMA. \n"); |
---|
| 517 | return -1; |
---|
| 518 | #endif |
---|
| 519 | break; |
---|
| 520 | |
---|
| 521 | |
---|
| 522 | case XILNET_TEMAC_INF: |
---|
| 523 | |
---|
| 524 | #ifdef XILNET_TEMAC_INF_USED |
---|
| 525 | // Do nothing, interface is already ready to go |
---|
| 526 | |
---|
| 527 | #ifdef _DEBUG_ |
---|
| 528 | xil_printf("Starting Ethernet Device %d with TEMAC\n", eth_dev_num); |
---|
| 529 | #endif |
---|
| 530 | |
---|
| 531 | #else |
---|
| 532 | xilnet_eth_print_err_msg( XILNET_ETH_ERR_INF_NOT_CONFIG, eth_dev_num ); |
---|
| 533 | xil_printf("TEMAC. \n"); |
---|
| 534 | return -1; |
---|
| 535 | #endif |
---|
| 536 | break; |
---|
| 537 | |
---|
| 538 | default: |
---|
| 539 | xilnet_eth_print_err_msg( XILNET_ETH_ERR_INF_DNE, eth_dev_num ); |
---|
| 540 | return -1; |
---|
| 541 | break; |
---|
| 542 | } |
---|
| 543 | |
---|
| 544 | return 0; |
---|
| 545 | } |
---|
| 546 | |
---|
| 547 | |
---|
| 548 | |
---|
| 549 | /* |
---|
| 550 | * initialize xilnet hardware address |
---|
| 551 | */ |
---|
| 552 | void xilnet_eth_init_hw_addr(int eth_dev_num, unsigned char* addr) { |
---|
| 553 | int k = 0; |
---|
| 554 | int j; |
---|
| 555 | int sum = 0; |
---|
| 556 | int val = 0; |
---|
| 557 | |
---|
| 558 | for (j = 0; j < 5; j++) { |
---|
| 559 | |
---|
| 560 | // parse input for colon separated hw address |
---|
| 561 | while(addr[k] != ':') { |
---|
| 562 | if (addr[k] >= 'a' && addr[k] <= 'f') |
---|
| 563 | val = addr[k] - 'a' + 10; |
---|
| 564 | else if (addr[k] >= 'A' && addr[k] <= 'F') |
---|
| 565 | val = addr[k] - 'A' + 10; |
---|
| 566 | else |
---|
| 567 | val = addr[k] - '0'; |
---|
| 568 | sum = sum * 16 + val; |
---|
| 569 | k++; |
---|
| 570 | } |
---|
| 571 | |
---|
| 572 | k++; // move over the colon |
---|
| 573 | eth_device[eth_dev_num].node_hw_addr[j] = (unsigned char) sum; |
---|
| 574 | sum = 0; |
---|
| 575 | } |
---|
| 576 | |
---|
| 577 | // read last byte of hw address |
---|
| 578 | while (addr[k] != '\0') { |
---|
| 579 | if (addr[k] >= 'a' && addr[k] <= 'f') |
---|
| 580 | val = addr[k] - 'a' + 10; |
---|
| 581 | else if (addr[k] >= 'A' && addr[k] <= 'F') |
---|
| 582 | val = addr[k] - 'A' + 10; |
---|
| 583 | else |
---|
| 584 | val = addr[k] - '0'; |
---|
| 585 | sum = sum * 16 + val; |
---|
| 586 | k++; |
---|
| 587 | } |
---|
| 588 | eth_device[eth_dev_num].node_hw_addr[5] = (unsigned char) sum; |
---|
| 589 | } |
---|
| 590 | |
---|
| 591 | |
---|
| 592 | #ifdef XILNET_TEMAC_INF_USED |
---|
| 593 | inline void waitForDMA( unsigned int eth_dev_num ) |
---|
| 594 | { |
---|
| 595 | int RegValue; |
---|
| 596 | |
---|
| 597 | // Wait until the DMA transfer is done by checking the Status register |
---|
| 598 | do {RegValue = XDmaCentral_GetStatus((XDmaCentral *)eth_device[eth_dev_num].inf_dma_ref);} |
---|
| 599 | while ((RegValue & XDMC_DMASR_BUSY_MASK) == XDMC_DMASR_BUSY_MASK); |
---|
| 600 | |
---|
| 601 | return; |
---|
| 602 | } |
---|
| 603 | #endif |
---|
| 604 | |
---|
| 605 | |
---|
| 606 | /* |
---|
| 607 | * Receive frame |
---|
| 608 | * |
---|
| 609 | * Returns either -1 or a pointer to the buffer of the received frame |
---|
| 610 | * |
---|
| 611 | */ |
---|
| 612 | unsigned int xilnet_eth_recv_frame( unsigned int eth_dev_num ) { |
---|
| 613 | |
---|
| 614 | // TODO: FIX - NEEDS TO RETURN THE POINTER TO THE BUFFER |
---|
| 615 | |
---|
| 616 | int status = -1; |
---|
| 617 | int processed_BD_count = 0; |
---|
| 618 | int free_BD_count = 0; |
---|
| 619 | int size = -1; |
---|
| 620 | struct xilnet_eth_hdr *eth; |
---|
| 621 | void *pktBufPtr; |
---|
| 622 | |
---|
| 623 | #ifdef XILNET_AXI_DMA_INF_USED |
---|
| 624 | int dma_error = 0; |
---|
| 625 | |
---|
| 626 | XAxiDma_BdRing *RX_RING_ptr; |
---|
| 627 | XAxiDma_BdRing *TX_RING_ptr; |
---|
| 628 | XAxiDma_Bd *BD_ptr; |
---|
| 629 | #endif |
---|
| 630 | |
---|
| 631 | #ifdef _DEBUG_ |
---|
| 632 | unsigned char *tmp_ptr; |
---|
| 633 | #endif |
---|
| 634 | |
---|
| 635 | // Check to see if we are receiving on a valid interface |
---|
| 636 | if ( eth_dev_num >= XILNET_NUM_ETH_DEVICES ) { |
---|
| 637 | xilnet_eth_print_err_msg( XILNET_ETH_ERR_NUM_DEV, eth_dev_num ); |
---|
| 638 | return -1; |
---|
| 639 | } |
---|
| 640 | |
---|
| 641 | // Check to see if the xilnet driver uses the Ethernet instance |
---|
| 642 | if ( !eth_device[eth_dev_num].uses_driver ) { |
---|
| 643 | xilnet_eth_print_err_msg( XILNET_ETH_ERR_USES_DRIVER, eth_dev_num ); |
---|
| 644 | return -1; |
---|
| 645 | } |
---|
| 646 | |
---|
| 647 | // Device specific routine for getting a frame |
---|
| 648 | switch( eth_device[eth_dev_num].inf_type ) { |
---|
| 649 | |
---|
| 650 | case XILNET_AXI_FIFO_INF: |
---|
| 651 | |
---|
| 652 | #ifdef XILNET_AXI_FIFO_INF_USED |
---|
| 653 | |
---|
| 654 | #if 0 |
---|
| 655 | xil_printf("AXI ETHERNET FIFO: \n"); |
---|
| 656 | xil_printf("FIFO_INST: 0x%x \n", eth_device[eth_dev_num].inf_ref); |
---|
| 657 | xil_printf("Ethernet FIFO is empty: %d \n", XLlFifo_IsRxEmpty((XLlFifo *)eth_device[eth_dev_num].inf_ref)); |
---|
| 658 | xil_printf("Base Addr : 0x%x \n", ((XLlFifo *)eth_device[eth_dev_num].inf_ref)->BaseAddress ); |
---|
| 659 | xil_printf("RX Occupancy value : 0x%x \n", ((*(volatile u32 *)((((XLlFifo *)eth_device[eth_dev_num].inf_ref)->BaseAddress) + (0x0000001c)))) ); |
---|
| 660 | #endif |
---|
| 661 | |
---|
| 662 | pktBufPtr = eth_device[eth_dev_num].recvbuf; |
---|
| 663 | |
---|
| 664 | if(XLlFifo_IsRxEmpty((XLlFifo *)eth_device[eth_dev_num].inf_ref)) { |
---|
| 665 | |
---|
[4459] | 666 | size = -1; |
---|
[4361] | 667 | |
---|
| 668 | } else { |
---|
| 669 | |
---|
| 670 | #ifdef _PERFORMANCE_MONITOR_ |
---|
| 671 | wl_setDebugGPIO(0x1); |
---|
| 672 | #endif |
---|
| 673 | |
---|
| 674 | if(XLlFifo_RxOccupancy((XLlFifo *)eth_device[eth_dev_num].inf_ref)) { |
---|
| 675 | size = XLlFifo_RxGetLen((XLlFifo *)eth_device[eth_dev_num].inf_ref); |
---|
| 676 | XLlFifo_Read((XLlFifo *)eth_device[eth_dev_num].inf_ref, pktBufPtr, size); |
---|
| 677 | } |
---|
| 678 | } |
---|
| 679 | #else |
---|
| 680 | xilnet_eth_print_err_msg( XILNET_ETH_ERR_INF_NOT_CONFIG, eth_dev_num ); |
---|
| 681 | xil_printf("AXI FIFO. \n"); |
---|
| 682 | return -1; |
---|
| 683 | #endif |
---|
| 684 | break; |
---|
| 685 | |
---|
| 686 | |
---|
| 687 | case XILNET_AXI_DMA_INF: |
---|
| 688 | |
---|
| 689 | #ifdef XILNET_AXI_DMA_INF_USED |
---|
| 690 | |
---|
| 691 | #if 0 |
---|
| 692 | xil_printf("AXI ETHERNET DMA: \n"); |
---|
| 693 | #endif |
---|
| 694 | |
---|
| 695 | // Get the RX Buffer Descriptor Ring pointer |
---|
| 696 | RX_RING_ptr = (XAxiDma_BdRing *)eth_device[eth_dev_num].dma_rx_ring_ref; |
---|
| 697 | |
---|
| 698 | // Check to see that the HW is started (if it is not started, we must have gotten an error somewhere |
---|
| 699 | if ( !XAxiDma_BdRingHwIsStarted( RX_RING_ptr ) ) { |
---|
| 700 | |
---|
| 701 | // Get the TX Buffer Descriptor Ring pointer |
---|
| 702 | TX_RING_ptr = (XAxiDma_BdRing *)eth_device[eth_dev_num].dma_tx_ring_ref; |
---|
| 703 | |
---|
| 704 | // Check to see if we have a RX error |
---|
| 705 | if ( XAxiDma_BdRingGetError( RX_RING_ptr ) ) { |
---|
| 706 | #ifdef _DEBUG_ |
---|
| 707 | print_XAxiDma_BdRing( RX_RING_ptr ); |
---|
| 708 | #endif |
---|
| 709 | xil_printf("*** ERROR in RX DMA transfer: 0x%8x \n", XAxiDma_BdRingGetError( RX_RING_ptr )); |
---|
| 710 | dma_error = 1; |
---|
| 711 | } |
---|
| 712 | |
---|
| 713 | // Check to see if we have a TX error |
---|
| 714 | if ( XAxiDma_BdRingGetError( TX_RING_ptr ) ) { |
---|
| 715 | #ifdef _DEBUG_ |
---|
| 716 | print_XAxiDma_BdRing( TX_RING_ptr ); |
---|
| 717 | #endif |
---|
| 718 | xil_printf("*** ERROR in TX DMA transfer: 0x%8x \n", XAxiDma_BdRingGetError( TX_RING_ptr )); |
---|
| 719 | dma_error = 1; |
---|
| 720 | } |
---|
| 721 | |
---|
| 722 | // If there is an error, reset the DMA |
---|
| 723 | if ( dma_error ) { |
---|
| 724 | xil_printf("*** Resetting DMA \n"); |
---|
| 725 | XAxiDma_Reset( (XAxiDma *)eth_device[eth_dev_num].inf_ref ); |
---|
| 726 | } |
---|
| 727 | |
---|
| 728 | // If not, then start DMA RX channel |
---|
| 729 | status = XAxiDma_BdRingStart( RX_RING_ptr ); |
---|
| 730 | if (status != XST_SUCCESS) { |
---|
| 731 | xil_printf("*** Error starting RX channel\n"); |
---|
| 732 | return -1; |
---|
| 733 | } |
---|
| 734 | } |
---|
| 735 | |
---|
| 736 | // See if we have any data to process |
---|
| 737 | // NOTE: We will only process one buffer descriptor at a time in this function call |
---|
| 738 | processed_BD_count = XAxiDma_BdRingFromHw(RX_RING_ptr, 0x1, &BD_ptr); |
---|
| 739 | |
---|
| 740 | // If we have data, then we need process the buffer |
---|
| 741 | if ( processed_BD_count > 0 ) { |
---|
| 742 | |
---|
| 743 | #ifdef _PERFORMANCE_MONITOR_ |
---|
| 744 | wl_setDebugGPIO(0x1); |
---|
| 745 | #endif |
---|
| 746 | |
---|
| 747 | status = XAxiDma_BdGetSts(BD_ptr); |
---|
| 748 | |
---|
| 749 | if ((status & XAXIDMA_BD_STS_ALL_ERR_MASK) || (!(status & XAXIDMA_BD_STS_COMPLETE_MASK))) { |
---|
| 750 | xil_printf("*** Rx Error: 0x%8x\n", status); |
---|
| 751 | return -1; |
---|
| 752 | } else { |
---|
| 753 | size = (XAxiDma_BdRead(BD_ptr, XAXIDMA_BD_USR4_OFFSET)) & 0x0000FFFF; |
---|
| 754 | } |
---|
| 755 | |
---|
| 756 | pktBufPtr = (void *)XAxiDma_BdGetId(BD_ptr); // BD ID was set to the base address of the buffer |
---|
| 757 | } |
---|
| 758 | #else |
---|
| 759 | xilnet_eth_print_err_msg( XILNET_ETH_ERR_INF_NOT_CONFIG, eth_dev_num ); |
---|
| 760 | xil_printf("AXI DMA. \n"); |
---|
| 761 | return -1; |
---|
| 762 | #endif |
---|
| 763 | break; |
---|
| 764 | |
---|
| 765 | |
---|
| 766 | case XILNET_TEMAC_INF: |
---|
| 767 | |
---|
| 768 | #ifdef XILNET_TEMAC_INF_USED |
---|
| 769 | |
---|
| 770 | #if 0 |
---|
| 771 | xil_printf("TEMAC FIFO: \n"); |
---|
| 772 | xil_printf("FIFO_INST: 0x%x \n", eth_device[eth_dev_num].inf_ref); |
---|
| 773 | xil_printf("Ethernet FIFO is empty: %d \n", XLlFifo_IsRxEmpty((XLlFifo *)eth_device[eth_dev_num].inf_ref)); |
---|
| 774 | xil_printf("Base Addr : 0x%x \n", ((XLlFifo *)eth_device[eth_dev_num].inf_ref)->BaseAddress ); |
---|
| 775 | xil_printf("RX Occupancy value : 0x%x \n", ((*(volatile u32 *)((((XLlFifo *)eth_device[eth_dev_num].inf_ref)->BaseAddress) + (0x0000001c)))) ); |
---|
| 776 | #endif |
---|
| 777 | |
---|
| 778 | if( XLlFifo_IsRxEmpty( (XLlFifo *)eth_device[eth_dev_num].inf_ref ) ) { |
---|
[4459] | 779 | size = -1; |
---|
[4361] | 780 | } else { |
---|
| 781 | |
---|
| 782 | #ifdef _PERFORMANCE_MONITOR_ |
---|
| 783 | wl_setDebugGPIO(0x1); |
---|
| 784 | #endif |
---|
[4459] | 785 | pktBufPtr = eth_device[eth_dev_num].recvbuf; |
---|
[4361] | 786 | |
---|
| 787 | if( XLlFifo_RxOccupancy( (XLlFifo *)eth_device[eth_dev_num].inf_ref ) ) { |
---|
[4459] | 788 | |
---|
[4361] | 789 | waitForDMA(eth_dev_num); |
---|
[4459] | 790 | |
---|
[4361] | 791 | // Set DMA to non-increment source, increment dest addresses |
---|
| 792 | XDmaCentral_SetControl( (XDmaCentral *)eth_device[eth_dev_num].inf_dma_ref, XDMC_DMACR_DEST_INCR_MASK ); |
---|
[4459] | 793 | |
---|
[4361] | 794 | size = XLlFifo_RxGetLen( (XLlFifo *)eth_device[eth_dev_num].inf_ref ); |
---|
[4459] | 795 | |
---|
[4361] | 796 | XDmaCentral_Transfer((XDmaCentral *)eth_device[eth_dev_num].inf_dma_ref, |
---|
[4459] | 797 | (u8 *)(((XLlFifo *)eth_device[eth_dev_num].inf_ref)->BaseAddress + XLLF_RDFD_OFFSET), |
---|
[4361] | 798 | (u8 *)pktBufPtr, size); |
---|
| 799 | } |
---|
| 800 | } |
---|
| 801 | #else |
---|
| 802 | xilnet_eth_print_err_msg( XILNET_ETH_ERR_INF_NOT_CONFIG, eth_dev_num ); |
---|
| 803 | xil_printf("TEMAC. \n"); |
---|
| 804 | return -1; |
---|
| 805 | #endif |
---|
| 806 | break; |
---|
| 807 | |
---|
| 808 | default: |
---|
| 809 | xilnet_eth_print_err_msg( XILNET_ETH_ERR_INF_DNE, eth_dev_num ); |
---|
| 810 | return -1; |
---|
| 811 | break; |
---|
| 812 | } |
---|
| 813 | |
---|
| 814 | #if 0 |
---|
| 815 | xil_printf("Ethernet Recvd Frame of size %d...\n", size); |
---|
| 816 | tmp_ptr = (unsigned char *)pktBufPtr; |
---|
| 817 | xil_printf("src : %d%d%d%d%d%d...\n", tmp_ptr[0], tmp_ptr[1], tmp_ptr[2], tmp_ptr[3], tmp_ptr[4], tmp_ptr[5]); |
---|
| 818 | xil_printf("dst : %d%d%d%d%d%d...\n", tmp_ptr[6], tmp_ptr[7], tmp_ptr[8], tmp_ptr[9], tmp_ptr[10], tmp_ptr[11]); |
---|
| 819 | xil_printf("type : %d%d...\n", tmp_ptr[12], tmp_ptr[13]); |
---|
| 820 | #endif |
---|
| 821 | |
---|
| 822 | // Strip off the FCS (or CRC) from the received frame |
---|
| 823 | size -= 4; |
---|
| 824 | |
---|
| 825 | // Process the packet |
---|
| 826 | if ( size > 0 ) { |
---|
| 827 | |
---|
| 828 | #ifdef _DEBUG_ |
---|
| 829 | xil_printf("BEGIN xilnet_eth_recv_frame() \n" ); |
---|
| 830 | xil_printf(" Received %d bytes\n", size); |
---|
| 831 | tmp_ptr = (unsigned char *)pktBufPtr; |
---|
| 832 | xil_printf(" src : %2x %2x %2x %2x %2x %2x \n", tmp_ptr[0], tmp_ptr[1], tmp_ptr[2], tmp_ptr[3], tmp_ptr[4], tmp_ptr[5]); |
---|
| 833 | xil_printf(" dst : %2x %2x %2x %2x %2x %2x \n", tmp_ptr[6], tmp_ptr[7], tmp_ptr[8], tmp_ptr[9], tmp_ptr[10], tmp_ptr[11]); |
---|
| 834 | xil_printf(" type : %2x %2x \n\n", tmp_ptr[12], tmp_ptr[13]); |
---|
| 835 | print_pkt((unsigned char *)pktBufPtr, size); |
---|
| 836 | #endif |
---|
| 837 | |
---|
| 838 | eth = (struct xilnet_eth_hdr*) pktBufPtr; |
---|
| 839 | |
---|
| 840 | switch (Xil_Ntohs(eth->type)) { |
---|
| 841 | case ETH_PROTO_IP: |
---|
| 842 | status = (xilnet_ip(pktBufPtr, size, eth_dev_num)); |
---|
| 843 | break; |
---|
| 844 | case ETH_PROTO_ARP: |
---|
| 845 | status = (xilnet_arp(pktBufPtr, size, eth_dev_num)); |
---|
| 846 | break; |
---|
| 847 | default: |
---|
| 848 | #ifdef _DEBUG_ |
---|
| 849 | xil_printf("Unknown protocol %x...\r\n", eth->type); |
---|
| 850 | #endif |
---|
| 851 | break; |
---|
| 852 | } |
---|
| 853 | |
---|
| 854 | |
---|
| 855 | #ifdef XILNET_AXI_DMA_INF_USED |
---|
| 856 | // Post process the DMA buffer descriptors now that we are done with them |
---|
| 857 | if (eth_device[eth_dev_num].inf_type == XILNET_AXI_DMA_INF) { |
---|
| 858 | |
---|
| 859 | // Free all processed RX BDs for future transmission |
---|
| 860 | status = XAxiDma_BdRingFree(RX_RING_ptr, processed_BD_count, BD_ptr); |
---|
| 861 | if (status != XST_SUCCESS) { |
---|
| 862 | xil_printf("*** Error freeing up %d RxBDs: 0x%8x\n", processed_BD_count, status); |
---|
| 863 | } |
---|
| 864 | |
---|
| 865 | // Return processed BDs to RX channel so we are ready to receive new packets: |
---|
| 866 | // - Allocate all free RX BDs |
---|
| 867 | // - Pass the BDs to RX channel |
---|
| 868 | free_BD_count = XAxiDma_BdRingGetFreeCnt(RX_RING_ptr); |
---|
| 869 | |
---|
| 870 | status = XAxiDma_BdRingAlloc(RX_RING_ptr, free_BD_count, &BD_ptr); |
---|
| 871 | if (status != XST_SUCCESS) { |
---|
| 872 | xil_printf("*** Error allocating %d RxBDs: 0x%8x\n", free_BD_count, status); |
---|
| 873 | } |
---|
| 874 | |
---|
| 875 | status = XAxiDma_BdRingToHw(RX_RING_ptr, free_BD_count, BD_ptr); |
---|
| 876 | if (status != XST_SUCCESS) { |
---|
| 877 | xil_printf("*** Error submiting %d rx BDs failed: 0x%8x\r\n", free_BD_count, status); |
---|
| 878 | } |
---|
| 879 | } |
---|
| 880 | #endif |
---|
| 881 | |
---|
| 882 | #ifdef _DEBUG_ |
---|
| 883 | xil_printf("END xilnet_eth_recv_frame() \n" ); |
---|
| 884 | #endif |
---|
| 885 | |
---|
| 886 | #ifdef _PERFORMANCE_MONITOR_ |
---|
| 887 | wl_clearDebugGPIO(0x1); |
---|
| 888 | #endif |
---|
| 889 | } |
---|
| 890 | |
---|
| 891 | return status; |
---|
| 892 | } |
---|
| 893 | |
---|
| 894 | |
---|
| 895 | /* |
---|
| 896 | * Send frame to peer ip addr, peer hw addr |
---|
| 897 | */ |
---|
| 898 | int xilnet_eth_send_frame(unsigned char *pkt, int len, unsigned char *dip_addr, |
---|
| 899 | void *dhw_addr, unsigned short type, unsigned int eth_dev_num) |
---|
| 900 | { |
---|
| 901 | int i; |
---|
| 902 | int hw_tbl_index = 0; |
---|
| 903 | |
---|
| 904 | int status; |
---|
| 905 | int size = 0; |
---|
| 906 | int transmit_flag = 0; |
---|
| 907 | unsigned char *hw_addr = (unsigned char *)dhw_addr; |
---|
| 908 | |
---|
| 909 | #ifdef XILNET_AXI_DMA_INF_USED |
---|
| 910 | int processed_BD_count = 0; |
---|
| 911 | int dma_status = 0; |
---|
| 912 | int dma_error = 0; |
---|
| 913 | int dma_hang_count = 1000; |
---|
| 914 | |
---|
| 915 | XAxiDma_BdRing *RX_RING_ptr; |
---|
| 916 | XAxiDma_BdRing *TX_RING_ptr; |
---|
| 917 | XAxiDma_Bd *BD_ptr; |
---|
| 918 | #endif |
---|
| 919 | |
---|
| 920 | // Check to see if we are sending on a valid interface |
---|
| 921 | if ( eth_dev_num >= XILNET_NUM_ETH_DEVICES ) { |
---|
| 922 | xilnet_eth_print_err_msg( XILNET_ETH_ERR_NUM_DEV, eth_dev_num ); |
---|
| 923 | return -1; |
---|
| 924 | } |
---|
| 925 | |
---|
| 926 | // Check to see if the xilnet driver uses the Ethernet instance |
---|
| 927 | if ( !eth_device[eth_dev_num].uses_driver ) { |
---|
| 928 | xilnet_eth_print_err_msg( XILNET_ETH_ERR_USES_DRIVER, eth_dev_num ); |
---|
| 929 | return -1; |
---|
| 930 | } |
---|
| 931 | |
---|
| 932 | #ifdef _DEBUG_ |
---|
| 933 | xil_printf("BEGIN xilnet_eth_send_frame(): \n"); |
---|
| 934 | xil_printf(" pkt = %x \n", pkt); |
---|
| 935 | xil_printf(" len = %d \n", len); |
---|
| 936 | xil_printf(" dip_addr = %d.%d.%d.%d \n", dip_addr[0], dip_addr[1], dip_addr[2], dip_addr[3]); |
---|
| 937 | xil_printf(" dhw_addr = %02x-%02x-%02x-%02x-%02x-%02x \n", hw_addr[0], hw_addr[1], hw_addr[2], hw_addr[3], hw_addr[4], hw_addr[5]); |
---|
| 938 | xil_printf(" type = %x \n", type); |
---|
| 939 | xil_printf(" eth_dev = %c \n", wn_conv_eth_dev_num(eth_dev_num) ); |
---|
| 940 | #endif |
---|
| 941 | |
---|
| 942 | #ifdef _PERFORMANCE_MONITOR_ |
---|
| 943 | wl_setDebugGPIO(0x2); |
---|
| 944 | #endif |
---|
| 945 | |
---|
| 946 | // Set the source MAC address |
---|
| 947 | for (i = 0; i < ETH_ADDR_LEN; i++) { |
---|
| 948 | ((struct xilnet_eth_hdr*)pkt)->src_addr[i] = eth_device[eth_dev_num].node_hw_addr[i]; |
---|
| 949 | } |
---|
| 950 | |
---|
| 951 | // Set the destination MAC address |
---|
| 952 | if (dhw_addr) |
---|
| 953 | memcpy(((struct xilnet_eth_hdr*)pkt)->dest_addr, dhw_addr, ETH_ADDR_LEN); |
---|
| 954 | else { |
---|
| 955 | // find the hw tbl entry index corr to dip_addr |
---|
| 956 | hw_tbl_index = xilnet_eth_get_hw_addr(dip_addr, eth_dev_num); |
---|
| 957 | |
---|
| 958 | for (i = 0; i < ETH_ADDR_LEN; i++) { |
---|
| 959 | ((struct xilnet_eth_hdr*)pkt)->dest_addr[i] = xilnet_hw_tbl[hw_tbl_index].hw_addr[i]; |
---|
| 960 | } |
---|
| 961 | } |
---|
| 962 | |
---|
| 963 | // Convert Endianess of type |
---|
| 964 | ((struct xilnet_eth_hdr*)pkt)->type = Xil_Htons(type); |
---|
| 965 | |
---|
| 966 | // pad the ethernet frame if < 60 bytes |
---|
| 967 | if (len < 60) { |
---|
| 968 | for(i = len; i < ETH_MIN_FRAME_LEN; i++) { |
---|
| 969 | pkt[i] = 0; |
---|
| 970 | } |
---|
| 971 | len = ETH_MIN_FRAME_LEN; |
---|
| 972 | } |
---|
| 973 | |
---|
| 974 | // Device specific routine for sending a frame |
---|
| 975 | switch( eth_device[eth_dev_num].inf_type ) { |
---|
| 976 | |
---|
| 977 | case XILNET_AXI_FIFO_INF: |
---|
| 978 | |
---|
| 979 | #ifdef XILNET_AXI_FIFO_INF_USED |
---|
| 980 | XLlFifo_Write((XLlFifo *) eth_device[eth_dev_num].inf_ref, pkt, len); |
---|
| 981 | |
---|
| 982 | // Write the length to the LL_FIFO; this write initiates the TEMAC transmission |
---|
| 983 | XLlFifo_TxSetLen((XLlFifo *) eth_device[eth_dev_num].inf_ref, len); |
---|
| 984 | #else |
---|
| 985 | xilnet_eth_print_err_msg( XILNET_ETH_ERR_INF_NOT_CONFIG, eth_dev_num ); |
---|
| 986 | xil_printf("AXI FIFO. \n"); |
---|
| 987 | return -1; |
---|
| 988 | #endif |
---|
| 989 | break; |
---|
| 990 | |
---|
| 991 | |
---|
| 992 | case XILNET_AXI_DMA_INF: |
---|
| 993 | |
---|
| 994 | #ifdef XILNET_AXI_DMA_INF_USED |
---|
| 995 | |
---|
| 996 | // Get the TX Buffer Descriptor Ring pointer |
---|
| 997 | TX_RING_ptr = (XAxiDma_BdRing *)eth_device[eth_dev_num].dma_tx_ring_ref; |
---|
| 998 | |
---|
| 999 | // Get the RX Buffer Descriptor Ring pointer |
---|
| 1000 | RX_RING_ptr = (XAxiDma_BdRing *)eth_device[eth_dev_num].dma_rx_ring_ref; |
---|
| 1001 | |
---|
| 1002 | // Check to see if we have a RX error |
---|
| 1003 | if ( XAxiDma_BdRingGetError( RX_RING_ptr ) ) { |
---|
| 1004 | #ifdef _DEBUG_ |
---|
| 1005 | print_XAxiDma_BdRing( RX_RING_ptr ); |
---|
| 1006 | #endif |
---|
| 1007 | xil_printf("*** ERROR in RX DMA transfer: 0x%8x \n", XAxiDma_BdRingGetError( RX_RING_ptr )); |
---|
| 1008 | dma_error = 1; |
---|
| 1009 | } |
---|
| 1010 | |
---|
| 1011 | // Check to see if we have a TX error |
---|
| 1012 | if ( XAxiDma_BdRingGetError( TX_RING_ptr ) ) { |
---|
| 1013 | #ifdef _DEBUG_ |
---|
| 1014 | print_XAxiDma_BdRing( TX_RING_ptr ); |
---|
| 1015 | #endif |
---|
| 1016 | xil_printf("*** ERROR in TX DMA transfer: 0x%8x \n", XAxiDma_BdRingGetError( TX_RING_ptr )); |
---|
| 1017 | dma_error = 1; |
---|
| 1018 | } |
---|
| 1019 | |
---|
| 1020 | // If there is an error, reset the DMA |
---|
| 1021 | if ( dma_error ) { |
---|
| 1022 | xil_printf("*** Resetting DMA \n"); |
---|
| 1023 | XAxiDma_Reset( (XAxiDma *)eth_device[eth_dev_num].inf_ref ); |
---|
| 1024 | } |
---|
| 1025 | |
---|
| 1026 | // Allocate, setup and enqueue a TX BD for the Frame |
---|
| 1027 | status = XAxiDma_BdRingAlloc(TX_RING_ptr, 1, &BD_ptr); |
---|
| 1028 | if (status != XST_SUCCESS) { |
---|
| 1029 | xil_printf("*** Error allocating TX BDs: 0x%8x\n", status); |
---|
| 1030 | } |
---|
| 1031 | |
---|
| 1032 | // Set the BD address to the start of the packet |
---|
| 1033 | status = XAxiDma_BdSetBufAddr(BD_ptr, (u32) pkt); |
---|
| 1034 | if (status != XST_SUCCESS) { |
---|
| 1035 | xil_printf("*** Error setting TX Address: status = 0x%8x; BD = 0x%x; addr = 0x%x\n", status, BD_ptr, (u32) pkt); |
---|
| 1036 | } |
---|
| 1037 | |
---|
| 1038 | // Set the BD length to the length field |
---|
| 1039 | status = XAxiDma_BdSetLength(BD_ptr, len, TX_RING_ptr->MaxTransferLen); |
---|
| 1040 | if (status != XST_SUCCESS) { |
---|
| 1041 | xil_printf("*** Error setting TX Length: status = 0x%8x; BD = 0x%x; len = %d; max_len = %d\n", status, BD_ptr, len, TX_RING_ptr->MaxTransferLen); |
---|
| 1042 | } |
---|
| 1043 | |
---|
| 1044 | // Since this is a single descriptor, set both SOF and EOF |
---|
| 1045 | XAxiDma_BdSetCtrl(BD_ptr, XAXIDMA_BD_CTRL_TXSOF_MASK | XAXIDMA_BD_CTRL_TXEOF_MASK); |
---|
| 1046 | |
---|
| 1047 | // Set the Application specific words |
---|
| 1048 | XAxiDma_BdSetAppWord( BD_ptr, 0, 0x00000000 ); |
---|
| 1049 | XAxiDma_BdSetAppWord( BD_ptr, 1, 0x00000000 ); |
---|
| 1050 | XAxiDma_BdSetAppWord( BD_ptr, 2, 0x00000000 ); |
---|
| 1051 | XAxiDma_BdSetAppWord( BD_ptr, 3, 0x00000000 ); |
---|
| 1052 | XAxiDma_BdSetAppWord( BD_ptr, 4, 0x00000000 ); |
---|
| 1053 | |
---|
| 1054 | #ifdef _DEBUG_ |
---|
| 1055 | print_XAxiDma_BdRing( TX_RING_ptr ); |
---|
| 1056 | print_XAxiDma_Bd( BD_ptr ); |
---|
| 1057 | #endif |
---|
| 1058 | |
---|
| 1059 | // Enqueue to the HW |
---|
| 1060 | status = XAxiDma_BdRingToHw(TX_RING_ptr, 1, BD_ptr); |
---|
| 1061 | if (status != XST_SUCCESS) { |
---|
| 1062 | // Undo BD allocation and exit |
---|
| 1063 | XAxiDma_BdRingUnAlloc(TX_RING_ptr, 1, BD_ptr); |
---|
| 1064 | xil_printf("*** Error committing TX BD to HW: 0x%8x\n", status); |
---|
| 1065 | } |
---|
| 1066 | |
---|
| 1067 | // Start DMA TX channel. Transmission starts at once. |
---|
| 1068 | // If the channel is already started, then the XAxiDma_BdRingToHw() call will start the transmission |
---|
| 1069 | if (TX_RING_ptr->RunState == AXIDMA_CHANNEL_HALTED) { |
---|
| 1070 | status = XAxiDma_BdRingStart(TX_RING_ptr); |
---|
| 1071 | if (status != XST_SUCCESS) { |
---|
| 1072 | xil_printf("*** Error starting TX BD: 0x%8x\n", status); |
---|
| 1073 | } |
---|
| 1074 | } |
---|
| 1075 | |
---|
| 1076 | // Poll to find when we are done transmitting the packet |
---|
| 1077 | // TODO: We can change this to non-blocking by moving these checks above the allocate calls |
---|
| 1078 | transmit_flag = 0; |
---|
| 1079 | |
---|
| 1080 | while ( transmit_flag == 0 ) { |
---|
| 1081 | |
---|
| 1082 | processed_BD_count = XAxiDma_BdRingFromHw(TX_RING_ptr, 1, &BD_ptr); |
---|
| 1083 | |
---|
| 1084 | if ( processed_BD_count > 0 ) { |
---|
| 1085 | |
---|
| 1086 | #ifdef _DEBUG_ |
---|
| 1087 | print_XAxiDma_BdRing( TX_RING_ptr ); |
---|
| 1088 | print_XAxiDma_Bd( BD_ptr ); |
---|
| 1089 | #endif |
---|
| 1090 | status = XAxiDma_BdGetSts(BD_ptr); |
---|
| 1091 | |
---|
| 1092 | if ((status & XAXIDMA_BD_STS_ALL_ERR_MASK) || (!(status & XAXIDMA_BD_STS_COMPLETE_MASK))) { |
---|
| 1093 | xil_printf("*** TX Error: 0x%x\n", status); |
---|
| 1094 | } else { |
---|
| 1095 | size = (XAxiDma_BdRead(BD_ptr, XAXIDMA_BD_STS_OFFSET)) & 0x0000FFFF; |
---|
| 1096 | } |
---|
| 1097 | |
---|
| 1098 | if ( size != len ) { |
---|
| 1099 | xil_printf("*** Size of transmission (0x%x) does not match length of packet (0x%x)\n", size, len); |
---|
| 1100 | } |
---|
| 1101 | |
---|
| 1102 | // Clear out all the control / status information before freeing the buffer descriptor |
---|
| 1103 | XAxiDma_BdClear(BD_ptr); |
---|
| 1104 | |
---|
| 1105 | // Free all processed RX BDs for future transmission |
---|
| 1106 | status = XAxiDma_BdRingFree(TX_RING_ptr, processed_BD_count, BD_ptr); |
---|
| 1107 | if (status != XST_SUCCESS) { |
---|
| 1108 | xil_printf("*** Error freeing up %d RxBDs: 0x%8x\n", processed_BD_count, status); |
---|
| 1109 | } |
---|
| 1110 | |
---|
| 1111 | #ifdef _DEBUG_ |
---|
| 1112 | print_XAxiDma_BdRing( TX_RING_ptr ); |
---|
| 1113 | print_XAxiDma_Bd( BD_ptr ); |
---|
| 1114 | #endif |
---|
| 1115 | |
---|
| 1116 | transmit_flag = 1; |
---|
| 1117 | } |
---|
| 1118 | else { |
---|
| 1119 | |
---|
| 1120 | if ( XAxiDma_BdRingBusy( TX_RING_ptr ) ) { |
---|
| 1121 | |
---|
| 1122 | // HW is still busy with the transfer |
---|
| 1123 | if ( dma_hang_count == 0 ) { |
---|
| 1124 | xil_printf(" **** ERROR: Trying to send on Ethernet device %c. Driver timed out while device was busy. Unknown ERROR. \n", wn_conv_eth_dev_num(eth_dev_num) ); |
---|
| 1125 | return -1; |
---|
| 1126 | } else { |
---|
| 1127 | dma_hang_count--; |
---|
| 1128 | } |
---|
| 1129 | } else { |
---|
| 1130 | |
---|
| 1131 | // Check to see if we have an error |
---|
| 1132 | dma_status = XAxiDma_BdRingGetError( TX_RING_ptr ); |
---|
| 1133 | |
---|
| 1134 | if ( dma_status != 0 ) { |
---|
| 1135 | xil_printf("*** ERROR in DMA transfer: 0x%8x \n", dma_status); |
---|
| 1136 | #ifdef _DEBUG_ |
---|
| 1137 | print_XAxiDma_BdRing( TX_RING_ptr ); |
---|
| 1138 | print_XAxiDma_Bd( TX_RING_ptr->HwHead ); |
---|
| 1139 | #endif |
---|
| 1140 | // Restart DMA TX channel. |
---|
| 1141 | xil_printf("*** Restarting transfer \n"); |
---|
| 1142 | XAxiDma_Reset( (XAxiDma *)eth_device[eth_dev_num].inf_ref ); |
---|
| 1143 | |
---|
| 1144 | status = XAxiDma_BdRingStart(TX_RING_ptr); |
---|
| 1145 | if (status != XST_SUCCESS) { |
---|
| 1146 | xil_printf("*** Error starting TX BD: 0x%8x\n", status); |
---|
| 1147 | } |
---|
| 1148 | } else { |
---|
| 1149 | // In the case of large packets, we can encounter a situation where we finish the processing of the |
---|
| 1150 | // packet between the XAxiDma_BdRingFromHw() function call and the XAxiDma_BdRingBusy() function call. |
---|
| 1151 | // In this case, we now have a situation where the DMA is not busy and does not have an error, but we |
---|
| 1152 | // just need to run through the loop one more time in order to finish the transaction. However, |
---|
| 1153 | // to make sure we don't get stuck in this case (ie there is a packet to process, we are going to |
---|
| 1154 | // enforce a timeout. |
---|
| 1155 | |
---|
| 1156 | if ( dma_hang_count == 0 ) { |
---|
| 1157 | xil_printf(" **** ERROR: Trying to send on Ethernet device %c. Driver timed out while device was idle. Unknown ERROR. \n", wn_conv_eth_dev_num(eth_dev_num) ); |
---|
| 1158 | return -1; |
---|
| 1159 | } else { |
---|
| 1160 | dma_hang_count--; |
---|
| 1161 | } |
---|
| 1162 | } |
---|
| 1163 | } |
---|
| 1164 | } |
---|
| 1165 | } |
---|
| 1166 | |
---|
| 1167 | #else |
---|
| 1168 | xilnet_eth_print_err_msg( XILNET_ETH_ERR_INF_NOT_CONFIG, eth_dev_num ); |
---|
| 1169 | xil_printf("AXI DMA. \n"); |
---|
| 1170 | return -1; |
---|
| 1171 | #endif |
---|
| 1172 | break; |
---|
| 1173 | |
---|
| 1174 | case XILNET_TEMAC_INF: |
---|
| 1175 | |
---|
| 1176 | #ifdef XILNET_TEMAC_INF_USED |
---|
| 1177 | waitForDMA(eth_dev_num); |
---|
| 1178 | |
---|
| 1179 | // Set DMA to increment src, non-increment dest addresses |
---|
| 1180 | XDmaCentral_SetControl((XDmaCentral *)eth_device[eth_dev_num].inf_dma_ref, XDMC_DMACR_SOURCE_INCR_MASK); |
---|
| 1181 | |
---|
| 1182 | // Transfer the packet into the LLFIFO |
---|
| 1183 | XDmaCentral_Transfer((XDmaCentral *)eth_device[eth_dev_num].inf_dma_ref, (u8 *)(pkt), |
---|
| 1184 | (u8 *)(((XLlFifo *)eth_device[eth_dev_num].inf_ref)->BaseAddress + XLLF_TDFD_OFFSET), len); |
---|
| 1185 | |
---|
| 1186 | waitForDMA(eth_dev_num); |
---|
| 1187 | |
---|
| 1188 | // Write the length to the LL_FIFO; this write initiates the TEMAC transmission |
---|
| 1189 | XLlFifo_TxSetLen((XLlFifo *)eth_device[eth_dev_num].inf_ref, len); |
---|
| 1190 | |
---|
| 1191 | #else |
---|
| 1192 | xilnet_eth_print_err_msg( XILNET_ETH_ERR_INF_NOT_CONFIG, eth_dev_num ); |
---|
| 1193 | xil_printf("TEMAC. \n"); |
---|
| 1194 | return -1; |
---|
| 1195 | #endif |
---|
| 1196 | break; |
---|
| 1197 | |
---|
| 1198 | default: |
---|
| 1199 | xilnet_eth_print_err_msg( XILNET_ETH_ERR_INF_DNE, eth_dev_num ); |
---|
| 1200 | return -1; |
---|
| 1201 | break; |
---|
| 1202 | } |
---|
| 1203 | |
---|
| 1204 | #ifdef _PERFORMANCE_MONITOR_ |
---|
| 1205 | wl_clearDebugGPIO(0x2); |
---|
| 1206 | #endif |
---|
| 1207 | |
---|
| 1208 | #ifdef _DEBUG_ |
---|
| 1209 | xil_printf(" Sent %d bytes\n",len); |
---|
| 1210 | xil_printf("END xilnet_eth_send_frame() \n\n"); |
---|
| 1211 | #endif |
---|
| 1212 | |
---|
| 1213 | return len; |
---|
| 1214 | } |
---|
| 1215 | |
---|
| 1216 | |
---|
| 1217 | /* |
---|
| 1218 | * Update Hardware Address Table |
---|
| 1219 | */ |
---|
| 1220 | |
---|
| 1221 | void xilnet_eth_update_hw_tbl(unsigned char *buf, int proto, unsigned int eth_dev_num) { |
---|
| 1222 | |
---|
| 1223 | unsigned char ip[IP_VERSION]; |
---|
| 1224 | unsigned char hw[ETH_ADDR_LEN]; |
---|
| 1225 | int i, j; |
---|
| 1226 | |
---|
| 1227 | // Update the current age |
---|
| 1228 | curr_age++; |
---|
| 1229 | |
---|
| 1230 | // get hw addr |
---|
| 1231 | for (i = 0; i < ETH_ADDR_LEN; i++) { |
---|
| 1232 | hw[i] = ((struct xilnet_eth_hdr*)buf)->src_addr[i]; |
---|
| 1233 | } |
---|
| 1234 | |
---|
| 1235 | // get ip addr |
---|
| 1236 | switch (proto) { |
---|
| 1237 | case ETH_PROTO_ARP: |
---|
| 1238 | for (i = 0; i < IP_VERSION; i++) { |
---|
| 1239 | ip[i] = (buf+ETH_HDR_LEN)[ARP_SIP_OFFSET+i]; |
---|
| 1240 | } |
---|
| 1241 | break; |
---|
| 1242 | case ETH_PROTO_IP: |
---|
| 1243 | for (i = 0; i < IP_VERSION; i++) { |
---|
| 1244 | ip[i] = (buf+ETH_HDR_LEN)[IP_SADDR_BASE+i]; |
---|
| 1245 | } |
---|
| 1246 | break; |
---|
| 1247 | } |
---|
| 1248 | |
---|
| 1249 | // update the hw addr table |
---|
| 1250 | for (i = 0; i < HW_ADDR_TBL_ENTRIES; i++) { |
---|
| 1251 | if (xilnet_hw_tbl[i].flag) { |
---|
| 1252 | if ( (hw[0] == xilnet_hw_tbl[i].hw_addr[0]) && |
---|
| 1253 | (hw[1] == xilnet_hw_tbl[i].hw_addr[1]) && |
---|
| 1254 | (hw[2] == xilnet_hw_tbl[i].hw_addr[2]) && |
---|
| 1255 | (hw[3] == xilnet_hw_tbl[i].hw_addr[3]) && |
---|
| 1256 | (hw[4] == xilnet_hw_tbl[i].hw_addr[4]) && |
---|
| 1257 | (hw[5] == xilnet_hw_tbl[i].hw_addr[5]) |
---|
| 1258 | ) { |
---|
| 1259 | for (j = 0; j < IP_VERSION; j++) |
---|
| 1260 | xilnet_hw_tbl[i].ip_addr[j] = ip[j];; |
---|
| 1261 | xilnet_hw_tbl[i].flag = HW_ADDR_ENTRY_IS_TRUE; |
---|
| 1262 | xilnet_hw_tbl[i].age = curr_age; |
---|
| 1263 | return; |
---|
| 1264 | } |
---|
| 1265 | } |
---|
| 1266 | } |
---|
| 1267 | xilnet_eth_add_hw_tbl_entry(ip, hw, eth_dev_num); |
---|
| 1268 | } |
---|
| 1269 | |
---|
| 1270 | |
---|
| 1271 | /* |
---|
| 1272 | * Add an entry into Hw Addr table |
---|
| 1273 | */ |
---|
| 1274 | |
---|
| 1275 | void xilnet_eth_add_hw_tbl_entry(unsigned char *ip, unsigned char *hw, unsigned int eth_dev_num) |
---|
| 1276 | { |
---|
| 1277 | int i, j; |
---|
| 1278 | |
---|
| 1279 | for (i = 0; i < HW_ADDR_TBL_ENTRIES; i++) { |
---|
| 1280 | if (!xilnet_hw_tbl[i].flag) { |
---|
| 1281 | for (j = 0; j < ETH_ADDR_LEN; j++) { |
---|
| 1282 | xilnet_hw_tbl[i].hw_addr[j] = hw[j]; |
---|
| 1283 | } |
---|
| 1284 | for (j = 0; j < IP_VERSION; j++) { |
---|
| 1285 | xilnet_hw_tbl[i].ip_addr[j] = ip[j]; |
---|
| 1286 | } |
---|
| 1287 | xilnet_hw_tbl[i].flag = HW_ADDR_ENTRY_IS_TRUE; |
---|
| 1288 | xilnet_hw_tbl[i].age = curr_age; |
---|
| 1289 | |
---|
| 1290 | #if _DEBUG_XILNET_HW_TABLE_ |
---|
| 1291 | xil_printf("xilnet_add_hw_tbl_entry: \n"); |
---|
| 1292 | print_hw_tbl(); |
---|
| 1293 | #endif |
---|
| 1294 | |
---|
| 1295 | return; |
---|
| 1296 | } |
---|
| 1297 | } |
---|
| 1298 | |
---|
| 1299 | // Find an old entry to be eliminated from hw tbl |
---|
| 1300 | i = xilnet_eth_find_old_entry(eth_dev_num); |
---|
| 1301 | for (j = 0; j < ETH_ADDR_LEN; j++) { |
---|
| 1302 | xilnet_hw_tbl[i].hw_addr[j] = hw[j]; |
---|
| 1303 | } |
---|
| 1304 | for (j = 0; j < IP_VERSION; j++) { |
---|
| 1305 | xilnet_hw_tbl[i].ip_addr[j] = ip[j]; |
---|
| 1306 | } |
---|
| 1307 | xilnet_hw_tbl[i].flag = HW_ADDR_ENTRY_IS_TRUE; |
---|
| 1308 | xilnet_hw_tbl[i].age = curr_age; |
---|
| 1309 | |
---|
| 1310 | #if _DEBUG_XILNET_HW_TABLE_ |
---|
| 1311 | xil_printf("xilnet_add_hw_tbl_entry: \n"); |
---|
| 1312 | print_hw_tbl(); |
---|
| 1313 | #endif |
---|
| 1314 | |
---|
| 1315 | } |
---|
| 1316 | |
---|
| 1317 | |
---|
| 1318 | /* |
---|
| 1319 | * Get index into hw tbl for ip_addr |
---|
| 1320 | */ |
---|
| 1321 | |
---|
| 1322 | int xilnet_eth_get_hw_addr(unsigned char *ip, unsigned int eth_dev_num) { |
---|
| 1323 | |
---|
| 1324 | int i; |
---|
| 1325 | |
---|
| 1326 | for (i = 0; i < HW_ADDR_TBL_ENTRIES; i++) { |
---|
| 1327 | if (xilnet_hw_tbl[i].flag) |
---|
| 1328 | if ( (ip[0] == xilnet_hw_tbl[i].ip_addr[0]) && |
---|
| 1329 | (ip[1] == xilnet_hw_tbl[i].ip_addr[1]) && |
---|
| 1330 | (ip[2] == xilnet_hw_tbl[i].ip_addr[2]) && |
---|
| 1331 | (ip[3] == xilnet_hw_tbl[i].ip_addr[3]) ) { |
---|
| 1332 | return i; |
---|
| 1333 | } |
---|
| 1334 | } |
---|
| 1335 | |
---|
| 1336 | #if _DEBUG_XILNET_HW_TABLE_ |
---|
| 1337 | xil_printf("xilnet_eth_get_hw_addr: \n"); |
---|
| 1338 | print_hw_tbl(); |
---|
| 1339 | #endif |
---|
| 1340 | |
---|
| 1341 | xil_printf("Hw Addr Not found for IP \r\n"); |
---|
| 1342 | return -1; |
---|
| 1343 | } |
---|
| 1344 | |
---|
| 1345 | |
---|
| 1346 | /* |
---|
| 1347 | * Init the hw addr table |
---|
| 1348 | */ |
---|
| 1349 | |
---|
| 1350 | void xilnet_eth_init_hw_addr_tbl(unsigned int eth_dev_num) { |
---|
| 1351 | |
---|
| 1352 | int i; |
---|
| 1353 | |
---|
| 1354 | for (i = 0; i < HW_ADDR_TBL_ENTRIES; i++) { |
---|
| 1355 | xilnet_hw_tbl[i].flag = HW_ADDR_ENTRY_IS_FALSE; |
---|
| 1356 | xilnet_hw_tbl[i].age = 0; |
---|
| 1357 | } |
---|
| 1358 | |
---|
| 1359 | ishwaddrinit = 1; |
---|
| 1360 | |
---|
| 1361 | #if _DEBUG_XILNET_HW_TABLE_ |
---|
| 1362 | xil_printf("xilnet_eth_init_hw_addr_tbl: \n"); |
---|
| 1363 | print_hw_tbl(); |
---|
| 1364 | #endif |
---|
| 1365 | |
---|
| 1366 | } |
---|
| 1367 | |
---|
| 1368 | |
---|
| 1369 | /* |
---|
| 1370 | * Find the oldest entry in the Hw Table and |
---|
| 1371 | * return its index |
---|
| 1372 | */ |
---|
| 1373 | |
---|
| 1374 | int xilnet_eth_find_old_entry(unsigned int eth_dev_num) |
---|
| 1375 | { |
---|
| 1376 | int i; |
---|
| 1377 | int oldest_age = 0; |
---|
| 1378 | int oldest = 0; |
---|
| 1379 | |
---|
| 1380 | for (i = 0; i < HW_ADDR_TBL_ENTRIES; i++) { |
---|
| 1381 | |
---|
| 1382 | if (curr_age - xilnet_hw_tbl[i].age > HW_ADDR_TBL_MAXAGE) { |
---|
| 1383 | oldest = i; |
---|
| 1384 | break; |
---|
| 1385 | } |
---|
| 1386 | else { |
---|
| 1387 | if (( curr_age - xilnet_hw_tbl[i].age) > oldest_age) { |
---|
| 1388 | oldest_age = curr_age - xilnet_hw_tbl[i].age; |
---|
| 1389 | oldest = i; |
---|
| 1390 | } |
---|
| 1391 | } |
---|
| 1392 | } |
---|
| 1393 | |
---|
| 1394 | return oldest; |
---|
| 1395 | } |
---|
| 1396 | |
---|
| 1397 | |
---|
| 1398 | // Debug printing functions for various structures |
---|
| 1399 | |
---|
| 1400 | #if _DEBUG_XILNET_HW_TABLE_ |
---|
| 1401 | void print_hw_tbl() |
---|
| 1402 | { |
---|
| 1403 | int i, j; |
---|
| 1404 | |
---|
| 1405 | xil_printf("Ethernet HW Table \n"); |
---|
| 1406 | |
---|
| 1407 | for (i=0; i<HW_ADDR_TBL_ENTRIES; i++) { |
---|
| 1408 | xil_printf(" IP : "); |
---|
| 1409 | for (j=0; j<IP_VERSION; j++) { |
---|
| 1410 | xil_printf("%d.", xilnet_hw_tbl[i].ip_addr[j]); |
---|
| 1411 | } |
---|
| 1412 | |
---|
| 1413 | xil_printf(" HW : "); |
---|
| 1414 | for (j=0; j<ETH_ADDR_LEN; j++) { |
---|
| 1415 | xil_printf("%x ", xilnet_hw_tbl[i].hw_addr[j]); |
---|
| 1416 | } |
---|
| 1417 | |
---|
| 1418 | xil_printf(" \n"); |
---|
| 1419 | } |
---|
| 1420 | xil_printf("\n"); |
---|
| 1421 | } |
---|
| 1422 | #endif |
---|
| 1423 | |
---|
| 1424 | #ifdef _DEBUG_ |
---|
| 1425 | |
---|
| 1426 | void print_pkt(unsigned char *buf, int size) |
---|
| 1427 | { |
---|
| 1428 | int i; |
---|
| 1429 | |
---|
| 1430 | xil_printf("Ethernet Packet: (0x%x bytes)\n", size); |
---|
| 1431 | |
---|
| 1432 | for (i=0; i<size; i++) { |
---|
| 1433 | xil_printf("%2x ", buf[i]); |
---|
| 1434 | if ( (((i + 1) % 16) == 0) && ((i + 1) != size) ) { |
---|
| 1435 | xil_printf("\n"); |
---|
| 1436 | } |
---|
| 1437 | } |
---|
| 1438 | xil_printf("\n\n"); |
---|
| 1439 | } |
---|
| 1440 | |
---|
| 1441 | |
---|
| 1442 | #ifdef XILNET_AXI_DMA_INF_USED |
---|
| 1443 | void print_XAxiDma_Bd( XAxiDma_Bd *BD_ptr ) { |
---|
| 1444 | |
---|
| 1445 | int i; |
---|
| 1446 | |
---|
| 1447 | xil_printf("Buffer Descriptor: 0x%x\n", BD_ptr); |
---|
| 1448 | for ( i = 0; i < XAXIDMA_BD_NUM_WORDS; i++ ) { |
---|
| 1449 | xil_printf(" Value[%2d]: 0x%x \n", i, (*BD_ptr)[i]); |
---|
| 1450 | } |
---|
| 1451 | xil_printf("\n"); |
---|
| 1452 | } |
---|
| 1453 | |
---|
| 1454 | |
---|
| 1455 | void print_XAxiDma_BdRing( XAxiDma_BdRing *BD_RING_ptr ) { |
---|
| 1456 | |
---|
| 1457 | xil_printf("Buffer Descriptor Ring Pointer: \n"); |
---|
| 1458 | xil_printf(" ChanBase: 0x%x \n", BD_RING_ptr->ChanBase); |
---|
| 1459 | xil_printf(" IsRxChannel: 0x%x \n", BD_RING_ptr->IsRxChannel); |
---|
| 1460 | xil_printf(" RunState: 0x%x \n", BD_RING_ptr->RunState); |
---|
| 1461 | xil_printf(" HasStsCntrlStrm: 0x%x \n", BD_RING_ptr->HasStsCntrlStrm); |
---|
| 1462 | xil_printf(" HasDRE: 0x%x \n", BD_RING_ptr->HasDRE); |
---|
| 1463 | xil_printf(" DataWidth: 0x%x \n", BD_RING_ptr->DataWidth); |
---|
| 1464 | xil_printf(" MaxTransferLen: 0x%x \n", BD_RING_ptr->MaxTransferLen); |
---|
| 1465 | xil_printf(" FirstBdPhysAddr: 0x%x \n", BD_RING_ptr->FirstBdPhysAddr); |
---|
| 1466 | xil_printf(" FirstBdAddr: 0x%x \n", BD_RING_ptr->FirstBdAddr); |
---|
| 1467 | xil_printf(" LastBdAddr: 0x%x \n", BD_RING_ptr->LastBdAddr); |
---|
| 1468 | xil_printf(" Length: 0x%x \n", BD_RING_ptr->Length); |
---|
| 1469 | xil_printf(" Separation: 0x%x \n", BD_RING_ptr->Separation); |
---|
| 1470 | xil_printf(" FreeHead: 0x%x \n", BD_RING_ptr->FreeHead); |
---|
| 1471 | xil_printf(" PreHead: 0x%x \n", BD_RING_ptr->PreHead); |
---|
| 1472 | xil_printf(" HwHead: 0x%x \n", BD_RING_ptr->HwHead); |
---|
| 1473 | xil_printf(" HwTail: 0x%x \n", BD_RING_ptr->HwTail); |
---|
| 1474 | xil_printf(" PostHead: 0x%x \n", BD_RING_ptr->PostHead); |
---|
| 1475 | xil_printf(" BdaRestart: 0x%x \n", BD_RING_ptr->BdaRestart); |
---|
| 1476 | xil_printf(" FreeCnt: 0x%x \n", BD_RING_ptr->FreeCnt); |
---|
| 1477 | xil_printf(" PreCnt: 0x%x \n", BD_RING_ptr->PreCnt); |
---|
| 1478 | xil_printf(" HwCnt: 0x%x \n", BD_RING_ptr->HwCnt); |
---|
| 1479 | xil_printf(" PostCnt: 0x%x \n", BD_RING_ptr->PostCnt); |
---|
| 1480 | xil_printf(" AllCnt: 0x%x \n", BD_RING_ptr->AllCnt); |
---|
| 1481 | xil_printf(" RingIndex: 0x%x \n", BD_RING_ptr->RingIndex); |
---|
| 1482 | xil_printf("\n"); |
---|
| 1483 | } |
---|
| 1484 | |
---|
| 1485 | |
---|
| 1486 | void print_XAxiDma_Config( XAxiDma_Config * DMA_CFG_ptr ) { |
---|
| 1487 | |
---|
| 1488 | xil_printf("DMA Config Pointer: \n"); |
---|
| 1489 | xil_printf(" DeviceId: 0x%x \n", DMA_CFG_ptr->DeviceId); |
---|
| 1490 | xil_printf(" BaseAddr: 0x%x \n", DMA_CFG_ptr->BaseAddr); |
---|
| 1491 | xil_printf(" HasStsCntrlStrm: 0x%x \n", DMA_CFG_ptr->HasStsCntrlStrm); |
---|
| 1492 | xil_printf(" HasMm2S: 0x%x \n", DMA_CFG_ptr->HasMm2S); |
---|
| 1493 | xil_printf(" HasMm2SDRE: 0x%x \n", DMA_CFG_ptr->HasMm2SDRE); |
---|
| 1494 | xil_printf(" Mm2SDataWidth: 0x%x \n", DMA_CFG_ptr->Mm2SDataWidth); |
---|
| 1495 | xil_printf(" HasS2Mm: 0x%x \n", DMA_CFG_ptr->HasS2Mm); |
---|
| 1496 | xil_printf(" HasS2MmDRE: 0x%x \n", DMA_CFG_ptr->HasS2MmDRE); |
---|
| 1497 | xil_printf(" S2MmDataWidth: 0x%x \n", DMA_CFG_ptr->S2MmDataWidth); |
---|
| 1498 | xil_printf(" HasSg: 0x%x \n", DMA_CFG_ptr->HasSg); |
---|
| 1499 | xil_printf(" Mm2sNumChannels: 0x%x \n", DMA_CFG_ptr->Mm2sNumChannels); |
---|
| 1500 | xil_printf(" S2MmNumChannels: 0x%x \n", DMA_CFG_ptr->S2MmNumChannels); |
---|
| 1501 | xil_printf("\n"); |
---|
| 1502 | } |
---|
| 1503 | #endif |
---|
| 1504 | |
---|
| 1505 | #ifdef XILNET_AXI_FIFO_INF_USED |
---|
| 1506 | void print_XLlFifo( XLlFifo * FIFO_ptr ) { |
---|
| 1507 | |
---|
| 1508 | xil_printf("FIFO Pointer: \n"); |
---|
| 1509 | xil_printf(" BaseAddress: 0x%x \n", FIFO_ptr->BaseAddress); |
---|
| 1510 | xil_printf(" IsReady: 0x%x \n", FIFO_ptr->IsReady); |
---|
| 1511 | xil_printf(" RX instance: 0x%x \n", FIFO_ptr->RxStreamer.FifoInstance); |
---|
| 1512 | xil_printf(" RX width: 0x%x \n", FIFO_ptr->RxStreamer.FifoWidth); |
---|
| 1513 | xil_printf(" RX HeadIndex: 0x%x \n", FIFO_ptr->RxStreamer.HeadIndex); |
---|
| 1514 | xil_printf(" RX FrmByteCnt: 0x%x \n", FIFO_ptr->RxStreamer.FrmByteCnt); |
---|
| 1515 | xil_printf(" TX instance: 0x%x \n", FIFO_ptr->TxStreamer.FifoInstance); |
---|
| 1516 | xil_printf(" TX width: 0x%x \n", FIFO_ptr->TxStreamer.FifoWidth); |
---|
| 1517 | xil_printf(" TX HeadIndex: 0x%x \n", FIFO_ptr->TxStreamer.TailIndex); |
---|
| 1518 | xil_printf("\n"); |
---|
| 1519 | } |
---|
| 1520 | #endif |
---|
| 1521 | |
---|
| 1522 | #endif |
---|
| 1523 | |
---|
| 1524 | |
---|
| 1525 | |
---|