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dpavlin |
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/* |
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* Cisco C7200 (Predator) Simulation Platform. |
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* Copyright (C) 2005-2006 Christophe Fillot. All rights reserved. |
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* |
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* EEPROM types: |
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* - 0x95: PA-POS-OC3SMI |
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* - 0x96: PA-POS-OC3MM |
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* |
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* Just an experimentation (I don't have any PA-POS-OC3). It basically works, |
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* on NPE-400. There is something strange with the buffer addresses in TX ring, |
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* preventing this driver working with platforms using SRAM. |
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*/ |
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#include <stdio.h> |
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#include <stdlib.h> |
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#include <string.h> |
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#include <unistd.h> |
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#include <errno.h> |
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#include <pthread.h> |
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#include <assert.h> |
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#include "mips64.h" |
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#include "dynamips.h" |
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#include "memory.h" |
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#include "device.h" |
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#include "net.h" |
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#include "net_io.h" |
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#include "ptask.h" |
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#include "dev_c7200.h" |
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/* Debugging flags */ |
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#define DEBUG_ACCESS 0 |
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#define DEBUG_UNKNOWN 1 |
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#define DEBUG_TRANSMIT 0 |
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#define DEBUG_RECEIVE 0 |
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/* PCI vendor/product codes */ |
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#define POS_OC3_PCI_VENDOR_ID 0x10b5 |
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#define POS_OC3_PCI_PRODUCT_ID 0x9060 |
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/* Maximum packet size */ |
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#define POS_OC3_MAX_PKT_SIZE 8192 |
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/* RX descriptors */ |
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#define POS_OC3_RXDESC_OWN 0x80000000 /* Ownership */ |
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#define POS_OC3_RXDESC_WRAP 0x40000000 /* Wrap ring */ |
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#define POS_OC3_RXDESC_CONT 0x08000000 /* Packet continues */ |
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#define POS_OC3_RXDESC_LEN_MASK 0x1fff |
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/* TX descriptors */ |
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#define POS_OC3_TXDESC_OWN 0x80000000 /* Ownership */ |
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#define POS_OC3_TXDESC_WRAP 0x40000000 /* Wrap ring */ |
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#define POS_OC3_TXDESC_CONT 0x08000000 /* Packet continues */ |
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#define POS_OC3_TXDESC_LEN_MASK 0x1fff |
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#define POS_OC3_TXDESC_ADDR_MASK 0x3fffffff /* Buffer address (?) */ |
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/* RX Descriptor */ |
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struct rx_desc { |
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m_uint32_t rdes[2]; |
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}; |
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/* TX Descriptor */ |
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struct tx_desc { |
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m_uint32_t tdes[2]; |
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}; |
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/* PA-POS-OC3 Data */ |
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struct pos_oc3_data { |
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char *name; |
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/* physical addresses for start and end of RX/TX rings */ |
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m_uint32_t rx_start,rx_end,tx_start,tx_end; |
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/* physical addresses of current RX and TX descriptors */ |
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m_uint32_t rx_current,tx_current; |
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/* Virtual machine */ |
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vm_instance_t *vm; |
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/* Virtual devices */ |
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char *rx_name,*tx_name,*cs_name; |
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vm_obj_t *rx_obj,*tx_obj,*cs_obj; |
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struct vdevice rx_dev,tx_dev,cs_dev; |
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/* PCI device information */ |
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struct vdevice dev; |
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struct pci_device *pci_dev; |
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/* NetIO descriptor */ |
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netio_desc_t *nio; |
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/* TX ring scanner task id */ |
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ptask_id_t tx_tid; |
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}; |
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/* EEPROM definition */ |
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static const m_uint16_t eeprom_pos_oc3_data[64] = { |
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0x0196, 0x0202, 0xffff, 0xffff, 0x490C, 0x7806, 0x0000, 0x0000, |
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0x5000, 0x0000, 0x0208, 0x1900, 0x0000, 0xFFFF, 0xFFFF, 0xFFFF, |
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}; |
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static const struct c7200_eeprom eeprom_pos_oc3 = { |
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"PA-POS-OC3MM", (m_uint16_t *)eeprom_pos_oc3_data, |
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sizeof(eeprom_pos_oc3_data)/2, |
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}; |
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/* Log a PA-POS-OC3 message */ |
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#define POS_LOG(d,msg...) vm_log((d)->vm,(d)->name,msg) |
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/* |
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* pos_access() |
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*/ |
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static void *dev_pos_access(cpu_mips_t *cpu,struct vdevice *dev, |
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m_uint32_t offset,u_int op_size,u_int op_type, |
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m_uint64_t *data) |
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{ |
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struct pos_oc3_data *d = dev->priv_data; |
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if (op_type == MTS_READ) |
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*data = 0; |
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#if DEBUG_ACCESS |
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if (op_type == MTS_READ) { |
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cpu_log(cpu,d->name,"read access to offset = 0x%x, pc = 0x%llx\n", |
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offset,cpu->pc); |
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} else { |
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if (offset != 0x404) |
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cpu_log(cpu,d->name,"write access to vaddr = 0x%x, pc = 0x%llx, " |
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"val = 0x%llx\n",offset,cpu->pc,*data); |
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} |
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#endif |
132 |
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133 |
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switch(offset) { |
134 |
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case 0x404: |
135 |
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if (op_type == MTS_READ) |
136 |
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*data = 0xFFFFFFFF; |
137 |
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break; |
138 |
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case 0x406: |
139 |
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if (op_type == MTS_READ) |
140 |
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*data = 0xFFFFFFFF; |
141 |
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break; |
142 |
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case 0x407: |
143 |
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if (op_type == MTS_READ) |
144 |
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*data = 0xFFFFFFFF; |
145 |
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break; |
146 |
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147 |
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#if DEBUG_UNKNOWN |
148 |
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default: |
149 |
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if (op_type == MTS_READ) { |
150 |
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cpu_log(cpu,d->name, |
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"read from unknown addr 0x%x, pc=0x%llx (size=%u)\n", |
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offset,cpu->pc,op_size); |
153 |
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} else { |
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cpu_log(cpu,d->name, |
155 |
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"write to unknown addr 0x%x, value=0x%llx, " |
156 |
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"pc=0x%llx (size=%u)\n",offset,*data,cpu->pc,op_size); |
157 |
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} |
158 |
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#endif |
159 |
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} |
160 |
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161 |
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return NULL; |
162 |
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} |
163 |
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164 |
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/* |
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* pos_rx_access() |
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*/ |
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static void *dev_pos_rx_access(cpu_mips_t *cpu,struct vdevice *dev, |
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m_uint32_t offset,u_int op_size,u_int op_type, |
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m_uint64_t *data) |
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{ |
171 |
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struct pos_oc3_data *d = dev->priv_data; |
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173 |
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if (op_type == MTS_READ) |
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*data = 0; |
175 |
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176 |
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#if DEBUG_ACCESS |
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if (op_type == MTS_READ) { |
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cpu_log(cpu,d->name,"read access to offset = 0x%x, pc = 0x%llx\n", |
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offset,cpu->pc); |
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} else { |
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cpu_log(cpu,d->name,"write access to vaddr = 0x%x, pc = 0x%llx, " |
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"val = 0x%llx\n",offset,cpu->pc,*data); |
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} |
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#endif |
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186 |
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switch(offset) { |
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case 0x04: |
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if (op_type == MTS_READ) |
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*data = d->rx_start; |
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else |
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d->rx_start = *data; |
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break; |
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case 0x08: |
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if (op_type == MTS_READ) |
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*data = d->rx_current; |
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else |
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d->rx_current = *data; |
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break; |
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201 |
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#if DEBUG_UNKNOWN |
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default: |
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if (op_type == MTS_READ) { |
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cpu_log(cpu,d->rx_name, |
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"read from unknown addr 0x%x, pc=0x%llx (size=%u)\n", |
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offset,cpu->pc,op_size); |
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} else { |
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cpu_log(cpu,d->rx_name, |
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"write to unknown addr 0x%x, value=0x%llx, " |
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"pc=0x%llx (size=%u)\n",offset,*data,cpu->pc,op_size); |
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} |
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#endif |
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} |
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return NULL; |
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} |
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/* |
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* pos_tx_access() |
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*/ |
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static void *dev_pos_tx_access(cpu_mips_t *cpu,struct vdevice *dev, |
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m_uint32_t offset,u_int op_size,u_int op_type, |
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m_uint64_t *data) |
224 |
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{ |
225 |
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struct pos_oc3_data *d = dev->priv_data; |
226 |
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227 |
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if (op_type == MTS_READ) |
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*data = 0; |
229 |
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230 |
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#if DEBUG_ACCESS |
231 |
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if (op_type == MTS_READ) { |
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cpu_log(cpu,d->tx_name,"read access to offset = 0x%x, pc = 0x%llx\n", |
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offset,cpu->pc); |
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} else { |
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cpu_log(cpu,d->tx_name,"write access to vaddr = 0x%x, pc = 0x%llx, " |
236 |
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"val = 0x%llx\n",offset,cpu->pc,*data); |
237 |
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} |
238 |
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#endif |
239 |
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240 |
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switch(offset) { |
241 |
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case 0x04: |
242 |
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if (op_type == MTS_READ) |
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*data = d->tx_start; |
244 |
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else |
245 |
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d->tx_start = *data; |
246 |
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break; |
247 |
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248 |
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case 0x08: |
249 |
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if (op_type == MTS_READ) |
250 |
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*data = d->tx_current; |
251 |
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else |
252 |
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d->tx_current = *data; |
253 |
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break; |
254 |
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255 |
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#if DEBUG_UNKNOWN |
256 |
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default: |
257 |
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if (op_type == MTS_READ) { |
258 |
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cpu_log(cpu,d->tx_name, |
259 |
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"read from unknown addr 0x%x, pc=0x%llx (size=%u)\n", |
260 |
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offset,cpu->pc,op_size); |
261 |
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} else { |
262 |
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cpu_log(cpu,d->tx_name, |
263 |
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"write to unknown addr 0x%x, value=0x%llx, " |
264 |
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"pc=0x%llx (size=%u)\n",offset,*data,cpu->pc,op_size); |
265 |
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} |
266 |
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#endif |
267 |
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} |
268 |
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269 |
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return NULL; |
270 |
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} |
271 |
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272 |
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/* |
273 |
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* pos_cs_access() |
274 |
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*/ |
275 |
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static void *dev_pos_cs_access(cpu_mips_t *cpu,struct vdevice *dev, |
276 |
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m_uint32_t offset,u_int op_size,u_int op_type, |
277 |
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m_uint64_t *data) |
278 |
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{ |
279 |
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struct pos_oc3_data *d = dev->priv_data; |
280 |
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281 |
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if (op_type == MTS_READ) |
282 |
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*data = 0; |
283 |
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284 |
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#if DEBUG_ACCESS |
285 |
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if (op_type == MTS_READ) { |
286 |
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cpu_log(cpu,d->cs_name,"read access to offset = 0x%x, pc = 0x%llx\n", |
287 |
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offset,cpu->pc); |
288 |
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} else { |
289 |
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cpu_log(cpu,d->cs_name,"write access to vaddr = 0x%x, pc = 0x%llx, " |
290 |
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"val = 0x%llx\n",offset,cpu->pc,*data); |
291 |
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} |
292 |
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#endif |
293 |
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294 |
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switch(offset) { |
295 |
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case 0x300000: |
296 |
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case 0x300004: |
297 |
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case 0x30001c: |
298 |
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if (op_type == MTS_READ) |
299 |
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*data = 0x00000FFF; |
300 |
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break; |
301 |
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302 |
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case 0x300008: |
303 |
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if (op_type == MTS_READ) |
304 |
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*data = 0x000007F; |
305 |
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break; |
306 |
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307 |
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#if DEBUG_UNKNOWN |
308 |
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default: |
309 |
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if (op_type == MTS_READ) { |
310 |
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cpu_log(cpu,d->cs_name, |
311 |
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"read from unknown addr 0x%x, pc=0x%llx (size=%u)\n", |
312 |
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offset,cpu->pc,op_size); |
313 |
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} else { |
314 |
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cpu_log(cpu,d->cs_name, |
315 |
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"write to unknown addr 0x%x, value=0x%llx, " |
316 |
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"pc=0x%llx (size=%u)\n",offset,*data,cpu->pc,op_size); |
317 |
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} |
318 |
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#endif |
319 |
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} |
320 |
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321 |
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return NULL; |
322 |
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} |
323 |
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324 |
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/* |
325 |
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* Get the address of the next RX descriptor. |
326 |
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*/ |
327 |
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static m_uint32_t rxdesc_get_next(struct pos_oc3_data *d,m_uint32_t rxd_addr, |
328 |
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struct rx_desc *rxd) |
329 |
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{ |
330 |
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m_uint32_t nrxd_addr; |
331 |
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332 |
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if (rxd->rdes[0] & POS_OC3_RXDESC_WRAP) |
333 |
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nrxd_addr = d->rx_start; |
334 |
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else |
335 |
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nrxd_addr = rxd_addr + sizeof(struct rx_desc); |
336 |
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337 |
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return(nrxd_addr); |
338 |
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} |
339 |
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340 |
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/* Read an RX descriptor */ |
341 |
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static void rxdesc_read(struct pos_oc3_data *d,m_uint32_t rxd_addr, |
342 |
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struct rx_desc *rxd) |
343 |
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{ |
344 |
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#if DEBUG_RECEIVE |
345 |
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POS_LOG(d,"reading RX descriptor at address 0x%x\n",rxd_addr); |
346 |
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#endif |
347 |
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348 |
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/* get the next descriptor from VM physical RAM */ |
349 |
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physmem_copy_from_vm(d->vm,rxd,rxd_addr,sizeof(struct rx_desc)); |
350 |
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351 |
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/* byte-swapping */ |
352 |
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rxd->rdes[0] = vmtoh32(rxd->rdes[0]); |
353 |
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rxd->rdes[1] = vmtoh32(rxd->rdes[1]); |
354 |
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} |
355 |
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356 |
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/* |
357 |
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* Try to acquire the specified RX descriptor. Returns TRUE if we have it. |
358 |
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* It assumes that the byte-swapping is done. |
359 |
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*/ |
360 |
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static inline int rxdesc_acquire(m_uint32_t rdes0) |
361 |
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{ |
362 |
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return(rdes0 & POS_OC3_RXDESC_OWN); |
363 |
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} |
364 |
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|
365 |
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/* Put a packet in buffer of a descriptor */ |
366 |
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static ssize_t rxdesc_put_pkt(struct pos_oc3_data *d,struct rx_desc *rxd, |
367 |
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u_char **pkt,ssize_t *pkt_len) |
368 |
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{ |
369 |
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ssize_t len,cp_len; |
370 |
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371 |
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len = rxd->rdes[0] & POS_OC3_RXDESC_LEN_MASK; |
372 |
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373 |
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/* compute the data length to copy */ |
374 |
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cp_len = m_min(len,*pkt_len); |
375 |
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376 |
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#if DEBUG_RECEIVE |
377 |
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POS_LOG(d,"copying %d bytes at 0x%x\n",cp_len,rxd->rdes[1]); |
378 |
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#endif |
379 |
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380 |
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/* copy packet data to the VM physical RAM */ |
381 |
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physmem_copy_to_vm(d->vm,*pkt,rxd->rdes[1],cp_len); |
382 |
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383 |
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*pkt += cp_len; |
384 |
|
|
*pkt_len -= cp_len; |
385 |
|
|
return(cp_len); |
386 |
|
|
} |
387 |
|
|
|
388 |
|
|
/* |
389 |
|
|
* Put a packet in the RX ring. |
390 |
|
|
*/ |
391 |
|
|
static void dev_pos_oc3_receive_pkt(struct pos_oc3_data *d, |
392 |
|
|
u_char *pkt,ssize_t pkt_len) |
393 |
|
|
{ |
394 |
|
|
m_uint32_t rx_start,rxdn_addr,rxdn_rdes0; |
395 |
|
|
struct rx_desc rxd0,rxdn,*rxdc; |
396 |
|
|
ssize_t cp_len,tot_len = pkt_len; |
397 |
|
|
u_char *pkt_ptr = pkt; |
398 |
|
|
int i; |
399 |
|
|
|
400 |
|
|
if (d->rx_start == 0) |
401 |
|
|
return; |
402 |
|
|
|
403 |
|
|
/* Truncate the packet if it is too big */ |
404 |
|
|
pkt_len = m_min(pkt_len,POS_OC3_MAX_PKT_SIZE); |
405 |
|
|
|
406 |
|
|
/* Copy the current rxring descriptor */ |
407 |
|
|
rxdesc_read(d,d->rx_current,&rxd0); |
408 |
|
|
|
409 |
|
|
/* We must have the first descriptor... */ |
410 |
|
|
if (!rxdesc_acquire(rxd0.rdes[0])) |
411 |
|
|
return; |
412 |
|
|
|
413 |
|
|
/* Remember the first RX descriptor address */ |
414 |
|
|
rx_start = d->rx_current; |
415 |
|
|
|
416 |
|
|
for(i=0,rxdc=&rxd0;tot_len>0;i++) |
417 |
|
|
{ |
418 |
|
|
/* Put data into the descriptor buffers */ |
419 |
|
|
cp_len = rxdesc_put_pkt(d,rxdc,&pkt_ptr,&tot_len); |
420 |
|
|
|
421 |
|
|
/* Get address of the next descriptor */ |
422 |
|
|
rxdn_addr = rxdesc_get_next(d,d->rx_current,rxdc); |
423 |
|
|
|
424 |
|
|
/* We have finished if the complete packet has been stored */ |
425 |
|
|
if (tot_len == 0) { |
426 |
|
|
rxdc->rdes[0] = cp_len + 4; |
427 |
|
|
|
428 |
|
|
if (i != 0) |
429 |
|
|
physmem_copy_u32_to_vm(d->vm,d->rx_current,rxdc->rdes[0]); |
430 |
|
|
|
431 |
|
|
d->rx_current = rxdn_addr; |
432 |
|
|
break; |
433 |
|
|
} |
434 |
|
|
|
435 |
|
|
#if DEBUG_RECEIVE |
436 |
|
|
POS_LOG(d,"trying to acquire new descriptor at 0x%x\n",rxdn_addr); |
437 |
|
|
#endif |
438 |
|
|
/* Get status of the next descriptor to see if we can acquire it */ |
439 |
|
|
rxdn_rdes0 = physmem_copy_u32_from_vm(d->vm,rxdn_addr); |
440 |
|
|
|
441 |
|
|
if (!rxdesc_acquire(rxdn_rdes0)) |
442 |
|
|
rxdc->rdes[0] = 0; /* error, no buf available (special flag?) */ |
443 |
|
|
else |
444 |
|
|
rxdc->rdes[0] = POS_OC3_RXDESC_CONT; /* packet continues */ |
445 |
|
|
|
446 |
|
|
rxdc->rdes[0] |= cp_len; |
447 |
|
|
|
448 |
|
|
/* Update the new status (only if we are not on the first desc) */ |
449 |
|
|
if (i != 0) |
450 |
|
|
physmem_copy_u32_to_vm(d->vm,d->rx_current,rxdc->rdes[0]); |
451 |
|
|
|
452 |
|
|
/* Update the RX pointer */ |
453 |
|
|
d->rx_current = rxdn_addr; |
454 |
|
|
|
455 |
|
|
if (!(rxdc->rdes[0] & POS_OC3_RXDESC_CONT)) |
456 |
|
|
break; |
457 |
|
|
|
458 |
|
|
/* Read the next descriptor from VM physical RAM */ |
459 |
|
|
rxdesc_read(d,rxdn_addr,&rxdn); |
460 |
|
|
rxdc = &rxdn; |
461 |
|
|
} |
462 |
|
|
|
463 |
|
|
/* Update the first RX descriptor */ |
464 |
|
|
physmem_copy_u32_to_vm(d->vm,rx_start,rxd0.rdes[0]); |
465 |
|
|
|
466 |
|
|
/* Generate IRQ on CPU */ |
467 |
|
|
pci_dev_trigger_irq(d->vm,d->pci_dev); |
468 |
|
|
} |
469 |
|
|
|
470 |
|
|
/* Handle the RX ring */ |
471 |
|
|
static int dev_pos_oc3_handle_rxring(netio_desc_t *nio, |
472 |
|
|
u_char *pkt,ssize_t pkt_len, |
473 |
|
|
struct pos_oc3_data *d) |
474 |
|
|
{ |
475 |
|
|
#if DEBUG_RECEIVE |
476 |
|
|
POS_LOG(d,"receiving a packet of %d bytes\n",pkt_len); |
477 |
|
|
mem_dump(log_file,pkt,pkt_len); |
478 |
|
|
#endif |
479 |
|
|
|
480 |
|
|
dev_pos_oc3_receive_pkt(d,pkt,pkt_len); |
481 |
|
|
return(TRUE); |
482 |
|
|
} |
483 |
|
|
|
484 |
|
|
/* Read a TX descriptor */ |
485 |
|
|
static void txdesc_read(struct pos_oc3_data *d,m_uint32_t txd_addr, |
486 |
|
|
struct tx_desc *txd) |
487 |
|
|
{ |
488 |
|
|
/* get the next descriptor from VM physical RAM */ |
489 |
|
|
physmem_copy_from_vm(d->vm,txd,txd_addr,sizeof(struct tx_desc)); |
490 |
|
|
|
491 |
|
|
/* byte-swapping */ |
492 |
|
|
txd->tdes[0] = vmtoh32(txd->tdes[0]); |
493 |
|
|
txd->tdes[1] = vmtoh32(txd->tdes[1]); |
494 |
|
|
} |
495 |
|
|
|
496 |
|
|
/* Set the address of the next TX descriptor */ |
497 |
|
|
static void txdesc_set_next(struct pos_oc3_data *d,struct tx_desc *txd) |
498 |
|
|
{ |
499 |
|
|
if (txd->tdes[0] & POS_OC3_TXDESC_WRAP) |
500 |
|
|
d->tx_current = d->tx_start; |
501 |
|
|
else |
502 |
|
|
d->tx_current += sizeof(struct tx_desc); |
503 |
|
|
} |
504 |
|
|
|
505 |
|
|
/* Handle the TX ring */ |
506 |
|
|
static int dev_pos_oc3_handle_txring(struct pos_oc3_data *d) |
507 |
|
|
{ |
508 |
|
|
u_char pkt[POS_OC3_MAX_PKT_SIZE],*pkt_ptr; |
509 |
|
|
m_uint32_t tx_start,clen,tot_len,addr; |
510 |
|
|
struct tx_desc txd0,ctxd,*ptxd; |
511 |
|
|
int i,done = FALSE; |
512 |
|
|
|
513 |
|
|
if ((d->tx_start == 0) || (d->nio == NULL)) |
514 |
|
|
return(FALSE); |
515 |
|
|
|
516 |
|
|
/* Copy the current txring descriptor */ |
517 |
|
|
tx_start = d->tx_current; |
518 |
|
|
ptxd = &txd0; |
519 |
|
|
txdesc_read(d,d->tx_current,ptxd); |
520 |
|
|
|
521 |
|
|
/* If we don't own the descriptor, we cannot transmit */ |
522 |
|
|
if (!(txd0.tdes[0] & POS_OC3_TXDESC_OWN)) |
523 |
|
|
return(FALSE); |
524 |
|
|
|
525 |
|
|
#if DEBUG_TRANSMIT |
526 |
|
|
POS_LOG(d,"pos_oc3_handle_txring: 1st desc: tdes[0]=0x%x, tdes[1]=0x%x\n", |
527 |
|
|
ptxd->tdes[0],ptxd->tdes[1]); |
528 |
|
|
#endif |
529 |
|
|
|
530 |
|
|
pkt_ptr = pkt; |
531 |
|
|
tot_len = 0; |
532 |
|
|
i = 0; |
533 |
|
|
|
534 |
|
|
do { |
535 |
|
|
#if DEBUG_TRANSMIT |
536 |
|
|
POS_LOG(d,"pos_oc3_handle_txring: loop: tdes[0]=0x%x, tdes[1]=0x%x\n", |
537 |
|
|
ptxd->tdes[0],ptxd->tdes[1]); |
538 |
|
|
#endif |
539 |
|
|
|
540 |
|
|
if (!(ptxd->tdes[0] & POS_OC3_TXDESC_OWN)) { |
541 |
|
|
POS_LOG(d,"pos_oc3_handle_txring: descriptor not owned!\n"); |
542 |
|
|
return(FALSE); |
543 |
|
|
} |
544 |
|
|
|
545 |
|
|
clen = ptxd->tdes[0] & POS_OC3_TXDESC_LEN_MASK; |
546 |
|
|
|
547 |
|
|
/* Be sure that we have length not null */ |
548 |
|
|
if (clen != 0) { |
549 |
|
|
addr = ptxd->tdes[1]; |
550 |
|
|
|
551 |
|
|
/* ugly hack, to allow this to work with SRAM platforms */ |
552 |
|
|
if ((addr & ~POS_OC3_TXDESC_ADDR_MASK) == 0xc0000000) |
553 |
|
|
addr = ptxd->tdes[1] & POS_OC3_TXDESC_ADDR_MASK; |
554 |
|
|
|
555 |
|
|
physmem_copy_from_vm(d->vm,pkt_ptr,addr,clen); |
556 |
|
|
} |
557 |
|
|
|
558 |
|
|
pkt_ptr += clen; |
559 |
|
|
tot_len += clen; |
560 |
|
|
|
561 |
|
|
/* Clear the OWN bit if this is not the first descriptor */ |
562 |
|
|
if (i != 0) |
563 |
|
|
physmem_copy_u32_to_vm(d->vm,d->tx_current,0); |
564 |
|
|
|
565 |
|
|
/* Go to the next descriptor */ |
566 |
|
|
txdesc_set_next(d,ptxd); |
567 |
|
|
|
568 |
|
|
/* Copy the next txring descriptor */ |
569 |
|
|
if (ptxd->tdes[0] & POS_OC3_TXDESC_CONT) { |
570 |
|
|
txdesc_read(d,d->tx_current,&ctxd); |
571 |
|
|
ptxd = &ctxd; |
572 |
|
|
i++; |
573 |
|
|
} else |
574 |
|
|
done = TRUE; |
575 |
|
|
}while(!done); |
576 |
|
|
|
577 |
|
|
if (tot_len != 0) { |
578 |
|
|
#if DEBUG_TRANSMIT |
579 |
|
|
POS_LOG(d,"sending packet of %u bytes (flags=0x%4.4x)\n", |
580 |
|
|
tot_len,txd0.tdes[0]); |
581 |
|
|
mem_dump(log_file,pkt,tot_len); |
582 |
|
|
#endif |
583 |
|
|
/* send it on wire */ |
584 |
|
|
netio_send(d->nio,pkt,tot_len); |
585 |
|
|
} |
586 |
|
|
|
587 |
|
|
/* Clear the OWN flag of the first descriptor */ |
588 |
|
|
txd0.tdes[0] &= ~POS_OC3_TXDESC_OWN; |
589 |
|
|
physmem_copy_u32_to_vm(d->vm,tx_start,txd0.tdes[0]); |
590 |
|
|
|
591 |
|
|
/* Interrupt on completion */ |
592 |
|
|
pci_dev_trigger_irq(d->vm,d->pci_dev); |
593 |
|
|
return(TRUE); |
594 |
|
|
} |
595 |
|
|
|
596 |
|
|
/* |
597 |
|
|
* pci_pos_read() |
598 |
|
|
*/ |
599 |
|
|
static m_uint32_t pci_pos_read(cpu_mips_t *cpu,struct pci_device *dev,int reg) |
600 |
|
|
{ |
601 |
|
|
struct pos_oc3_data *d = dev->priv_data; |
602 |
|
|
|
603 |
|
|
#if DEBUG_ACCESS |
604 |
|
|
POS_LOG(d,"read PCI register 0x%x\n",reg); |
605 |
|
|
#endif |
606 |
|
|
|
607 |
|
|
switch(reg) { |
608 |
|
|
case PCI_REG_BAR0: |
609 |
|
|
return(d->dev.phys_addr); |
610 |
|
|
default: |
611 |
|
|
return(0); |
612 |
|
|
} |
613 |
|
|
} |
614 |
|
|
|
615 |
|
|
/* |
616 |
|
|
* pci_pos_write() |
617 |
|
|
*/ |
618 |
|
|
static void pci_pos_write(cpu_mips_t *cpu,struct pci_device *dev, |
619 |
|
|
int reg,m_uint32_t value) |
620 |
|
|
{ |
621 |
|
|
struct pos_oc3_data *d = dev->priv_data; |
622 |
|
|
|
623 |
|
|
#if DEBUG_ACCESS |
624 |
|
|
POS_LOG(d,"write 0x%x to PCI register 0x%x\n",value,reg); |
625 |
|
|
#endif |
626 |
|
|
|
627 |
|
|
switch(reg) { |
628 |
|
|
case PCI_REG_BAR0: |
629 |
|
|
vm_map_device(cpu->vm,&d->dev,(m_uint64_t)value); |
630 |
|
|
POS_LOG(d,"registers are mapped at 0x%x\n",value); |
631 |
|
|
break; |
632 |
|
|
} |
633 |
|
|
} |
634 |
|
|
|
635 |
|
|
/* |
636 |
|
|
* dev_c7200_pa_pos_init() |
637 |
|
|
* |
638 |
|
|
* Add a PA-POS port adapter into specified slot. |
639 |
|
|
*/ |
640 |
|
|
int dev_c7200_pa_pos_init(c7200_t *router,char *name,u_int pa_bay) |
641 |
|
|
{ |
642 |
|
|
struct pci_bus *pci_bus; |
643 |
|
|
struct pos_oc3_data *d; |
644 |
|
|
|
645 |
|
|
/* Allocate the private data structure for PA-POS-OC3 chip */ |
646 |
|
|
if (!(d = malloc(sizeof(*d)))) { |
647 |
|
|
fprintf(stderr,"%s (PA-POS-OC3): out of memory\n",name); |
648 |
|
|
return(-1); |
649 |
|
|
} |
650 |
|
|
|
651 |
|
|
memset(d,0,sizeof(*d)); |
652 |
|
|
d->name = name; |
653 |
|
|
d->vm = router->vm; |
654 |
|
|
|
655 |
|
|
/* Set the EEPROM */ |
656 |
|
|
c7200_pa_set_eeprom(router,pa_bay,&eeprom_pos_oc3); |
657 |
|
|
|
658 |
|
|
/* Get the appropriate PCI bus */ |
659 |
|
|
pci_bus = router->pa_bay[pa_bay].pci_map; |
660 |
|
|
|
661 |
|
|
/* Initialize RX device */ |
662 |
|
|
d->rx_name = dyn_sprintf("%s_RX",name); |
663 |
|
|
dev_init(&d->rx_dev); |
664 |
|
|
d->rx_dev.name = d->rx_name; |
665 |
|
|
d->rx_dev.priv_data = d; |
666 |
|
|
d->rx_dev.handler = dev_pos_rx_access; |
667 |
|
|
vm_bind_device(d->vm,&d->rx_dev); |
668 |
|
|
|
669 |
|
|
/* Initialize TX device */ |
670 |
|
|
d->tx_name = dyn_sprintf("%s_TX",name); |
671 |
|
|
dev_init(&d->tx_dev); |
672 |
|
|
d->tx_dev.name = d->tx_name; |
673 |
|
|
d->tx_dev.priv_data = d; |
674 |
|
|
d->tx_dev.handler = dev_pos_tx_access; |
675 |
|
|
vm_bind_device(d->vm,&d->tx_dev); |
676 |
|
|
|
677 |
|
|
/* Initialize CS device */ |
678 |
|
|
d->cs_name = dyn_sprintf("%s_CS",name); |
679 |
|
|
dev_init(&d->cs_dev); |
680 |
|
|
d->cs_dev.name = d->cs_name; |
681 |
|
|
d->cs_dev.priv_data = d; |
682 |
|
|
d->cs_dev.handler = dev_pos_cs_access; |
683 |
|
|
vm_bind_device(d->vm,&d->cs_dev); |
684 |
|
|
|
685 |
|
|
/* Initialize PLX9060 for RX part */ |
686 |
|
|
d->rx_obj = dev_plx9060_init(d->vm,d->rx_name,pci_bus,0,&d->rx_dev); |
687 |
|
|
|
688 |
|
|
/* Initialize PLX9060 for TX part */ |
689 |
|
|
d->tx_obj = dev_plx9060_init(d->vm,d->tx_name,pci_bus,1,&d->tx_dev); |
690 |
|
|
|
691 |
|
|
/* Initialize PLX9060 for CS part (CS=card status, chip status, ... ?) */ |
692 |
|
|
d->cs_obj = dev_plx9060_init(d->vm,d->cs_name,pci_bus,2,&d->cs_dev); |
693 |
|
|
|
694 |
|
|
/* Unknown PCI device here (will be mapped at 0x30000) */ |
695 |
|
|
dev_init(&d->dev); |
696 |
|
|
d->dev.name = name; |
697 |
|
|
d->dev.priv_data = d; |
698 |
|
|
d->dev.phys_len = 0x10000; |
699 |
|
|
d->dev.handler = dev_pos_access; |
700 |
|
|
vm_bind_device(d->vm,&d->dev); |
701 |
|
|
|
702 |
|
|
d->pci_dev = pci_dev_add(pci_bus,name,0,0,3,0,C7200_NETIO_IRQ, |
703 |
|
|
d,NULL,pci_pos_read,pci_pos_write); |
704 |
|
|
|
705 |
|
|
/* Store device info into the router structure */ |
706 |
|
|
return(c7200_pa_set_drvinfo(router,pa_bay,d)); |
707 |
|
|
} |
708 |
|
|
|
709 |
|
|
/* Remove a PA-POS-OC3 from the specified slot */ |
710 |
|
|
int dev_c7200_pa_pos_shutdown(c7200_t *router,u_int pa_bay) |
711 |
|
|
{ |
712 |
|
|
struct c7200_pa_bay *bay; |
713 |
|
|
struct pos_oc3_data *d; |
714 |
|
|
|
715 |
|
|
if (!(bay = c7200_pa_get_info(router,pa_bay))) |
716 |
|
|
return(-1); |
717 |
|
|
|
718 |
|
|
d = bay->drv_info; |
719 |
|
|
|
720 |
|
|
/* Remove the PA EEPROM */ |
721 |
|
|
c7200_pa_unset_eeprom(router,pa_bay); |
722 |
|
|
|
723 |
|
|
/* Remove the PCI device */ |
724 |
|
|
pci_dev_remove(d->pci_dev); |
725 |
|
|
|
726 |
|
|
/* Remove the PLX9060 chips */ |
727 |
|
|
vm_object_remove(d->vm,d->rx_obj); |
728 |
|
|
vm_object_remove(d->vm,d->tx_obj); |
729 |
|
|
vm_object_remove(d->vm,d->cs_obj); |
730 |
|
|
|
731 |
|
|
/* Remove the device from the CPU address space */ |
732 |
|
|
vm_unbind_device(router->vm,&d->dev); |
733 |
|
|
cpu_group_rebuild_mts(router->vm->cpu_group); |
734 |
|
|
|
735 |
|
|
/* Free the device structure itself */ |
736 |
|
|
free(d); |
737 |
|
|
return(0); |
738 |
|
|
} |
739 |
|
|
|
740 |
|
|
/* Bind a Network IO descriptor to a specific port */ |
741 |
|
|
int dev_c7200_pa_pos_set_nio(c7200_t *router,u_int pa_bay,u_int port_id, |
742 |
|
|
netio_desc_t *nio) |
743 |
|
|
{ |
744 |
|
|
struct pos_oc3_data *d; |
745 |
|
|
|
746 |
|
|
if ((port_id > 0) || !(d = c7200_pa_get_drvinfo(router,pa_bay))) |
747 |
|
|
return(-1); |
748 |
|
|
|
749 |
|
|
if (d->nio != NULL) |
750 |
|
|
return(-1); |
751 |
|
|
|
752 |
|
|
d->nio = nio; |
753 |
|
|
d->tx_tid = ptask_add((ptask_callback)dev_pos_oc3_handle_txring,d,NULL); |
754 |
|
|
netio_rxl_add(nio,(netio_rx_handler_t)dev_pos_oc3_handle_rxring,d,NULL); |
755 |
|
|
return(0); |
756 |
|
|
} |
757 |
|
|
|
758 |
|
|
/* Bind a Network IO descriptor to a specific port */ |
759 |
|
|
int dev_c7200_pa_pos_unset_nio(c7200_t *router,u_int pa_bay,u_int port_id) |
760 |
|
|
{ |
761 |
|
|
struct pos_oc3_data *d; |
762 |
|
|
|
763 |
|
|
if ((port_id > 0) || !(d = c7200_pa_get_drvinfo(router,pa_bay))) |
764 |
|
|
return(-1); |
765 |
|
|
|
766 |
|
|
if (d->nio) { |
767 |
|
|
ptask_remove(d->tx_tid); |
768 |
|
|
netio_rxl_remove(d->nio); |
769 |
|
|
d->nio = NULL; |
770 |
|
|
} |
771 |
|
|
return(0); |
772 |
|
|
} |
773 |
|
|
|
774 |
|
|
/* PA-POS-OC3 driver */ |
775 |
|
|
struct c7200_pa_driver dev_c7200_pa_pos_oc3_driver = { |
776 |
|
|
"PA-POS-OC3", 1, |
777 |
|
|
dev_c7200_pa_pos_init, |
778 |
|
|
dev_c7200_pa_pos_shutdown, |
779 |
|
|
dev_c7200_pa_pos_set_nio, |
780 |
|
|
dev_c7200_pa_pos_unset_nio, |
781 |
dpavlin |
2 |
NULL, |
782 |
dpavlin |
1 |
}; |