Mercurial > archived > louis > epitech > mq > rathaxes
annotate rathaxes_change_the_abstract_type_notation_in_the_e1000_sample.patch @ 105:fb20f01ea997
Wip, note: the interrupt handler refactoring patch is broken, I have to find the fix from the abstract type notation patch
author | Louis Opter <louis@lse.epita.fr> |
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date | Fri, 22 Mar 2013 00:25:52 -0700 |
parents | c4c33ac02b93 |
children | 976a4b87803f |
rev | line source |
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104
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1 # HG changeset patch |
105
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2 # Parent 1fa9b24e6012b2d53f1a84d4606cf3b6b9685fef |
104
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3 rathaxes: change the abstract type notation in the e1000 sample |
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4 |
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5 Starting with ra24db32bf134 Rathaxes types are generated differently: you |
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6 don't define entire structures anymore, but only the fields. And the |
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7 compiler generate a typedef'ed structure on top of it. |
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8 |
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9 This works fine, except for "abstract types" (the types defined by —and |
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10 used to interact with— the kernel). We need to define these types as |
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11 Rathaxes types to interact with them, in Rathaxes, but with |
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12 ra24db32bf134 it means that we loose (hide) the original type from the |
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13 kernel, making it very difficult to use "abstract types" with the |
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14 kernels APIs. |
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15 |
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16 For example, here the hypothetical generated struct for the abstract |
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17 type "struct net_device" from Linux would be: |
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18 |
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19 typedef struct { |
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20 struct net_device data; |
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21 } rtx_GeneratedType; |
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22 |
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23 And here is how we have to use it: |
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24 |
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25 rtx_GeneratedType *my_struct; |
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26 kernel_api_function(&my_struct->data); |
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27 |
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28 This &my_struct->data is actually always a nop, but it's confusing and |
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29 hard to understand. |
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30 |
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31 This changeset changes the notation to: |
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32 |
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33 rtx_GeneratedType *my_struct; |
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34 kernel_api_function((struct net_device *)my_struct); |
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35 |
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36 Which is, I believe, more intuitive and coherent with how you would |
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37 initialize the my_struct pointer here with a return value from the |
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38 kernel (i.e: with a cast into rtx_GeneratedType *). |
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39 |
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40 diff --git a/rathaxes/samples/e1000/device.blt b/rathaxes/samples/e1000/device.blt |
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41 --- a/rathaxes/samples/e1000/device.blt |
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42 +++ b/rathaxes/samples/e1000/device.blt |
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43 @@ -18,7 +18,7 @@ |
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44 |
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45 map |
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46 { |
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47 - data: ${self}->data; |
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48 + k_device: ((struct device *)${self}); |
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49 } |
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50 } |
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51 } |
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52 diff --git a/rathaxes/samples/e1000/device.rti b/rathaxes/samples/e1000/device.rti |
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53 --- a/rathaxes/samples/e1000/device.rti |
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54 +++ b/rathaxes/samples/e1000/device.rti |
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55 @@ -5,6 +5,6 @@ |
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56 decl data_types(); |
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57 chunk LKM::includes(); |
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58 method init(); |
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59 - attribute Builtin::symbol data; |
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60 + attribute Builtin::symbol k_device; |
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61 } |
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62 } |
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63 diff --git a/rathaxes/samples/e1000/e1000.blt b/rathaxes/samples/e1000/e1000.blt |
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64 --- a/rathaxes/samples/e1000/e1000.blt |
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65 +++ b/rathaxes/samples/e1000/e1000.blt |
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66 @@ -171,13 +171,17 @@ |
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67 |
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68 static int rtx_e1000_tx_ring_tso_cksum_offload(${e1000::TxRing} *self, ${Socket::SKBuff} *skb) |
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69 { |
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70 - ${Socket::AbstractSKBuff} *abs_skb = skb->skbuff; |
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71 - ${cast local.abs_skb as Socket::AbstractSKBuff}; |
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72 - return skb_is_gso(&${local.abs_skb.data}) || ${local.abs_skb.data}.ip_summed == CHECKSUM_PARTIAL; |
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73 + /* XXX We can't use ${skb} here because it's a pointer */ |
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74 + ${Socket::AbstractSKBuff} *k_skb = skb->skbuff; |
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75 + ${cast local.k_skb as Socket::AbstractSKBuff}; |
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76 + return skb_is_gso(${local.k_skb.k_sk_buff}) || ${local.k_skb.k_sk_buff}->ip_summed == CHECKSUM_PARTIAL; |
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77 } |
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78 |
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79 static void rtx_e1000_tx_ring_put(${e1000::TxRing} *self, ${Socket::SKBuff} *skb) |
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80 { |
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81 + /* XXX We can't use ${skb} here because it's a pointer */ |
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82 + ${Socket::AbstractSKBuff} *k_skb = skb->skbuff; |
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83 + ${cast local.k_skb as Socket::AbstractSKBuff}; |
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84 WARN_ON(!skb); |
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85 |
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86 /* |
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87 @@ -188,17 +192,15 @@ |
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88 * code shouldn't be aware of it and use something more |
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89 * abstract. |
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90 */ |
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91 - ${Socket::AbstractSKBuff} *abs_skb = skb->skbuff; |
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92 - ${cast local.abs_skb as Socket::AbstractSKBuff}; |
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93 ${e1000::TxDescriptor} *tx_desc = &self->base[self->tail]; |
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94 tx_desc->lower.data = cpu_to_le32( |
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95 E1000_TXD_CMD_EOP | |
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96 E1000_TXD_CMD_IFCS | |
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97 E1000_TXD_CMD_RS | |
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98 - skb_headlen(&${local.abs_skb.data})); |
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99 + skb_headlen(${local.k_skb.k_sk_buff})); |
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100 tx_desc->upper.data = 0; |
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101 tx_desc->buff_addr = cpu_to_le64(skb->dma_handle); |
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102 - memcpy(&self->skbuffs[self->tail], skb, sizeof(*skb)); |
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103 + memcpy(&self->skbuffs[self->tail], ${local.k_skb.k_sk_buff}, sizeof(*${local.k_skb.k_sk_buff})); |
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104 self->tail = (self->tail + 1) % ${config.tx_ring_size}; |
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105 } |
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106 |
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107 @@ -733,7 +735,7 @@ |
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108 hw_ctx->rx_ring.size = ${config.rx_ring_size} * sizeof(*hw_ctx->rx_ring.base); |
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109 hw_ctx->rx_ring.size = ALIGN(hw_ctx->rx_ring.size, 4096); |
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110 hw_ctx->rx_ring.base = dma_alloc_coherent( |
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111 - &${rtx_ether_ctx.device}, |
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112 + ${rtx_ether_ctx.device}, |
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113 hw_ctx->rx_ring.size, |
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114 &hw_ctx->rx_ring.dma_base, |
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115 GFP_KERNEL); |
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116 @@ -751,12 +753,10 @@ |
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117 * Allocate the skbuffs, map them for DMA, and write their address |
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118 * in the corresponding descriptor. |
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119 */ |
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120 - ${Ethernet::AbstractDevice} *rtx_ether_dev = ${rtx_ether_ctx.net_device}; |
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121 - ${cast local.rtx_ether_dev as Ethernet::AbstractDevice}; |
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122 for (i = 0; i != ${config.rx_ring_size}; ++i) |
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123 { |
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124 - hw_ctx->rx_ring.skbuffs[i].skbuff = (${Socket::AbstractSKBuff}*) netdev_alloc_skb( |
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125 - &${rtx_ether_dev.netdev}, |
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126 + hw_ctx->rx_ring.skbuffs[i].skbuff = (${Socket::AbstractSKBuff}*)netdev_alloc_skb( |
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127 + ${rtx_ether_ctx.net_device.k_net_dev}, /* XXX: .k_net_dev isn't expanded here */ |
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128 ${config.rx_buffer_len}); |
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129 if (!hw_ctx->rx_ring.skbuffs[i].skbuff) |
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130 { |
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131 @@ -764,11 +764,11 @@ |
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132 goto err_skbuffs_alloc; |
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133 } |
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134 hw_ctx->rx_ring.skbuffs[i].dma_handle = dma_map_single( |
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135 - &${rtx_ether_ctx.device}, |
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136 - &hw_ctx->rx_ring.skbuffs[i].skbuff->data, |
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137 + ${rtx_ether_ctx.device}, |
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138 + (struct sk_buff *)hw_ctx->rx_ring.skbuffs[i].skbuff, /* XXX leaking cast */ |
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139 ${config.rx_buffer_len}, |
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140 DMA_FROM_DEVICE); |
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141 - int dma_error = dma_mapping_error(&${rtx_ether_ctx.device}, |
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142 + int dma_error = dma_mapping_error(${rtx_ether_ctx.device}, |
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143 hw_ctx->rx_ring.skbuffs[i].dma_handle); |
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144 if (dma_error) |
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145 { |
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146 @@ -820,7 +820,7 @@ |
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147 hw_ctx->tx_ring.size = ${config.tx_ring_size} * sizeof(*hw_ctx->tx_ring.base); |
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148 hw_ctx->tx_ring.size = ALIGN(hw_ctx->tx_ring.size, 4096); |
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149 hw_ctx->tx_ring.base = dma_alloc_coherent( |
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150 - &${rtx_ether_ctx.device}, |
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151 + ${rtx_ether_ctx.device}, |
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152 hw_ctx->tx_ring.size, |
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153 &hw_ctx->tx_ring.dma_base, |
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154 GFP_KERNEL); |
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155 @@ -863,15 +863,16 @@ |
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156 while (i--) |
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157 { |
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158 dma_unmap_single( |
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159 - &${rtx_ether_ctx.device}, |
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160 + ${rtx_ether_ctx.device}, |
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161 hw_ctx->rx_ring.skbuffs[i].dma_handle, |
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162 ${config.rx_buffer_len}, |
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163 DMA_FROM_DEVICE); |
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164 err_skbuffs_map: |
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165 - dev_kfree_skb(&hw_ctx->rx_ring.skbuffs[i].skbuff->data); |
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166 + /* XXX leaking cast: */ |
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167 + dev_kfree_skb((struct sk_buff *)hw_ctx->rx_ring.skbuffs[i].skbuff); |
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168 } |
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169 |
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170 - dma_free_coherent(&${rtx_ether_ctx.device}, hw_ctx->rx_ring.size, |
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171 + dma_free_coherent(${rtx_ether_ctx.device}, hw_ctx->rx_ring.size, |
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172 hw_ctx->rx_ring.base, hw_ctx->rx_ring.dma_base); |
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173 err_rx_ring_alloc: |
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174 return -ENOMEM; |
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175 @@ -889,8 +890,13 @@ |
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176 { |
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177 chunk ::CALL() |
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178 { |
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179 - ${e1000::Context} *hw_ctx; |
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180 - hw_ctx = &${rtx_ether_ctx}->hw_ctx; |
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181 + /* |
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182 + * XXX: Not generated if named "hw_ctx" (which is funny because |
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183 + * it's used and works in the template right above this one): |
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184 + */ |
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185 + ${e1000::Context} *hw_ctx_; |
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186 + ${cast local.hw_ctx_ as e1000::Context}; |
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187 + hw_ctx_ = &${rtx_ether_ctx}->hw_ctx; |
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188 |
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189 /* |
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190 * Free the rx ring: |
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191 @@ -900,22 +906,23 @@ |
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192 for (int i = 0; i != ${config.rx_ring_size}; ++i) |
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193 { |
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194 dma_unmap_single( |
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195 - &${rtx_ether_ctx.device}, |
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196 - (dma_addr_t)hw_ctx->rx_ring.skbuffs[i].dma_handle, |
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197 + ${rtx_ether_ctx.device}, |
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198 + (dma_addr_t)hw_ctx_->rx_ring.skbuffs[i].dma_handle, |
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199 ${config.rx_buffer_len}, |
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200 DMA_FROM_DEVICE); |
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201 - dev_kfree_skb(&hw_ctx->rx_ring.skbuffs[i].skbuff->data); |
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202 + /* XXX Go through the rtx types (Socket::SKBuff, AbstractSKBuff) */ |
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203 + dev_kfree_skb(hw_ctx_->rx_ring.skbuffs[i].skbuff); |
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204 } |
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205 - dma_free_coherent(&${rtx_ether_ctx.device}, hw_ctx->rx_ring.size, |
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206 - hw_ctx->rx_ring.base, hw_ctx->rx_ring.dma_base); |
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207 + dma_free_coherent(${rtx_ether_ctx.device}, hw_ctx_->rx_ring.size, |
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208 + hw_ctx_->rx_ring.base, hw_ctx_->rx_ring.dma_base); |
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209 ${Log::info("free_rx_tx: rx ring free'ed")}; |
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210 |
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211 /* |
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212 * Free the tx ring: |
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213 * - Free the descriptors array. |
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214 */ |
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215 - dma_free_coherent(&${rtx_ether_ctx.device}, hw_ctx->tx_ring.size, |
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216 - hw_ctx->tx_ring.base, hw_ctx->tx_ring.dma_base); |
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217 + dma_free_coherent(${rtx_ether_ctx.device}, hw_ctx_->tx_ring.size, |
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218 + hw_ctx_->tx_ring.base, hw_ctx_->tx_ring.dma_base); |
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219 ${Log::info("free_rx_tx: tx ring free'ed")}; |
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220 } |
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221 } |
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222 @@ -973,13 +980,13 @@ |
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223 ${local.skb.init(kernel_skb)}; |
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224 hw_ctx = &${rtx_ether_ctx}->hw_ctx; |
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225 tx_ring = &hw_ctx->tx_ring; |
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226 - devp = (${Device::AbstractDevice}*) &${rtx_ether_ctx.device}; |
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227 + devp = (${Device::AbstractDevice}*)${rtx_ether_ctx.device}; |
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228 |
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229 ${Log::info("xmit: skbuff details:")}; |
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230 /* |
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231 - * skb is not expand on the bound C variable (should be rtx_skbuff), |
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232 - * which is funny because it works for the sequence template call |
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233 - * right after. |
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234 + * skb does not expand on the bound C variable (should be |
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235 + * rtx_skbuff), which is funny because it works for the |
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236 + * sequence template call right after. |
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237 */ |
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238 /* |
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239 * XXX: doesn't work (I tried to pass self explicitely too): |
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240 @@ -1012,8 +1019,8 @@ |
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241 |
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242 /* 2. Map the data */ |
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243 |
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244 - /* XXX: ${local.skb.map_to(local.devp)}; */ |
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245 - if (rtx_socket_skbuff_map(&skb, &${devp.data}, DMA_TO_DEVICE)) |
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246 + /* XXX: ${local.skb.map_to(devp.k_device)}; */ |
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247 + if (rtx_socket_skbuff_map(&skb, ${devp.k_device}, DMA_TO_DEVICE)) |
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248 { |
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249 ${Log::info("xmit: can't DMA map a SKbuff")}; |
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250 goto err_skb_map_to; |
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251 @@ -1032,7 +1039,7 @@ |
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252 err_offload: |
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253 err_skb_map_to: |
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254 /* XXX: ${local.skb.unmap_to_and_free(local.dev)}; */ |
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255 - rtx_socket_skbuff_unmap_and_free(&skb, &${devp.data}, DMA_TO_DEVICE); |
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256 + rtx_socket_skbuff_unmap_and_free(&skb, ${devp.k_device}, DMA_TO_DEVICE); |
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257 return NETDEV_TX_OK; |
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258 } |
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259 } |
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260 diff --git a/rathaxes/samples/e1000/ethernet.blt b/rathaxes/samples/e1000/ethernet.blt |
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261 --- a/rathaxes/samples/e1000/ethernet.blt |
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262 +++ b/rathaxes/samples/e1000/ethernet.blt |
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263 @@ -51,7 +51,7 @@ |
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264 { |
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265 decl data_types() |
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266 { |
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267 - struct net_device ndev; |
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268 + struct net_device data; |
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269 } |
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270 |
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271 chunk LKM::includes() |
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272 @@ -59,9 +59,15 @@ |
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273 #include <linux/netdevice.h> |
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274 } |
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275 |
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276 + method init(Builtin::symbol dev) |
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277 + { |
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278 + ${self} = (${Ethernet::AbstractDevice} *)${dev}; |
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279 + } |
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280 + |
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281 map |
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282 { |
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283 - netdev: ${self}->ndev; |
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284 + k_net_dev: ((struct net_device *)${self}); |
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285 + rtx_ether_ctx: netdev_priv((struct net_device *)${self}); |
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286 } |
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287 } |
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288 |
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289 @@ -88,25 +94,33 @@ |
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290 #include <linux/etherdevice.h> |
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291 } |
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292 |
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293 - method init(Ethernet::AbstractDevice net_dev, PCI::AbstractDevice pci_dev) |
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294 + /* XXX: if the first arg is not called rtx_net_dev, it breaks. */ |
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295 + method init(Ethernet::AbstractDevice rtx_net_dev, PCI::AbstractDevice pci_dev) |
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296 { |
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297 - ${self} = netdev_priv(&${net_dev.netdev}); |
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298 + ${self} = ${rtx_net_dev.rtx_ether_ctx}; |
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299 /* |
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300 * We can use -> because we know that ${self} will be always a |
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301 * pointer, but the ambiguity sucks. |
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302 */ |
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303 ${self}->pci_dev = ${pci_dev}; |
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304 - ${self}->net_dev = ${net_dev}; |
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305 + ${self}->net_dev = ${rtx_net_dev}; |
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306 } |
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307 |
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308 map |
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309 { |
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310 - device: ${self}->pci_dev->data.dev; |
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311 + /* |
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312 + * XXX: I'd like to be able to do things like: |
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313 + * device: ${self.pci_dev.k_pci_dev}->dev; |
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314 + * |
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315 + * Also, using ${PCI::AbstractDevice} instead of directly struct |
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316 + * pci_dev doesn't work. |
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317 + */ |
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318 + device: (&((struct pci_dev *)(${self})->pci_dev)->dev); |
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319 pci_device: ${self}->pci_dev; |
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320 net_device: ${self}->net_dev; |
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321 - perm_addr: ${self}->net_dev->ndev.perm_addr; |
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322 - dev_addr: ${self}->net_dev->ndev.dev_addr; |
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323 - irq: ${self}->pci_dev->data.irq; |
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324 + perm_addr: ((struct net_device *)(${self})->net_dev)->perm_addr; |
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325 + dev_addr: ((struct net_device *)(${self})->net_dev)->dev_addr; |
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326 + irq: ((struct pci_dev *)(${self})->pci_dev)->irq; |
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327 } |
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328 } |
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329 |
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330 @@ -126,8 +140,17 @@ |
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331 { |
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332 static int rtx_ethernet_open(struct net_device *dev) |
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333 { |
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334 - ${Ethernet::Device} *rtx_ether_ctx = netdev_priv(dev); |
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335 + /* |
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336 + * XXX The casts are here because the compiler doesn't resolve |
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337 + * "enclosed" type (e.g: local.var.enclosed) correctly. |
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338 + */ |
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339 + ${Ethernet::AbstractDevice} *rtx_net_dev; |
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340 + ${cast local.rtx_net_dev as Ethernet::AbstractDevice}; |
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341 + { /* XXX: I end up with a placeholder if I don't open a scope */ |
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342 + ${local.rtx_net_dev.init(local.dev)}; |
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343 + } |
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344 |
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345 + ${Ethernet::Device} *rtx_ether_ctx = ${local.rtx_net_dev.rtx_ether_ctx}; |
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346 ${cast local.rtx_ether_ctx as Ethernet::Device}; |
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347 |
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348 int error; |
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349 @@ -187,8 +210,13 @@ |
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350 { |
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351 static int rtx_ethernet_close(struct net_device *dev) |
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352 { |
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353 - ${Ethernet::Device} *rtx_ether_ctx = netdev_priv(dev); |
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354 + ${Ethernet::AbstractDevice} *rtx_net_dev; |
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355 + ${cast local.rtx_net_dev as Ethernet::AbstractDevice}; |
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356 + { /* XXX: I end up with a placeholder if I don't open a scope */ |
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357 + ${local.rtx_net_dev.init(local.dev)}; |
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358 + } |
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359 |
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360 + ${Ethernet::Device} *rtx_ether_ctx = ${local.rtx_net_dev.rtx_ether_ctx}; |
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361 ${cast local.rtx_ether_ctx as Ethernet::Device}; |
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362 |
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363 /* TODO: change this pointcut into a pointcut/adapter/callback: */ |
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364 @@ -221,9 +249,13 @@ |
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365 { |
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366 static enum irqreturn rtx_ethernet_interrupt_handler(int irq, void *dev_id) |
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367 { |
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368 - ${Ethernet::Device} *rtx_ether_ctx = dev_id; |
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369 + ${Ethernet::AbstractDevice} *rtx_net_dev = dev_id; |
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370 + ${cast local.rtx_net_dev as Ethernet::AbstractDevice}; |
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371 |
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372 + ${Ethernet::Device} *rtx_ether_ctx; |
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373 ${cast local.rtx_ether_ctx as Ethernet::Device}; |
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374 + rtx_ether_ctx = ${local.rtx_net_dev.rtx_ether_ctx}; |
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375 + |
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376 ${pointcut ::IMPLEMENTATION(local.rtx_ether_ctx)}; |
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377 |
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378 return IRQ_NONE; |
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379 @@ -253,23 +285,26 @@ |
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380 */ |
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381 chunk PCI::pci_probe_hook(PCI::Device rtx_pci_dev) |
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382 { |
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383 + ${Ethernet::AbstractDevice} *rtx_net_dev; |
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384 ${Ethernet::Device} *rtx_ether_ctx; |
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385 - ${Ethernet::AbstractDevice} *net_dev; |
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386 - ${cast local.net_dev as Ethernet::AbstractDevice}; |
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387 + ${cast local.rtx_net_dev as Ethernet::AbstractDevice}; |
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388 |
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389 - net_dev = (${Ethernet::AbstractDevice}*) alloc_etherdev(sizeof(*rtx_ether_ctx)); |
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390 - if (!net_dev) |
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391 + /* Cast the result back into our "transparent wrapper" type */ |
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392 + rtx_net_dev = (${Ethernet::AbstractDevice}*)alloc_etherdev(sizeof(*rtx_ether_ctx)); |
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393 + if (!rtx_net_dev) |
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394 { |
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395 ${Log::info("cannot allocate the ethernet device context")}; |
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396 error = -ENOMEM; |
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397 goto fail; |
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398 } |
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399 - SET_NETDEV_DEV(&${local.net_dev.netdev}, ${rtx_pci_dev.device}); |
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400 - strlcpy(${local.net_dev.netdev}.name, ${config.ifname}, sizeof(${local.net_dev.netdev}.name)); |
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401 - ${local.net_dev.netdev}.irq = ${rtx_pci_dev.irq}; |
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402 - ${local.net_dev.netdev}.netdev_ops = &rtx_ether_ops; |
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403 + SET_NETDEV_DEV(${local.rtx_net_dev.k_net_dev}, ${rtx_pci_dev.device}); |
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404 + strlcpy(${local.rtx_net_dev.k_net_dev}->name, |
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405 + ${config.ifname}, |
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406 + sizeof(${local.rtx_net_dev.k_net_dev}->name)); |
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407 + ${local.rtx_net_dev.k_net_dev}->irq = ${rtx_pci_dev.irq}; |
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408 + ${local.rtx_net_dev.k_net_dev}->netdev_ops = &rtx_ether_ops; |
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409 |
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410 - error = register_netdev(&${local.net_dev.netdev}); |
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411 + error = register_netdev(${local.rtx_net_dev.k_net_dev}); |
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412 if (error) |
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413 { |
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414 ${Log::info("cannot register the driver in the net subsystem")}; |
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415 @@ -281,14 +316,11 @@ |
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416 * XXX: the cast is here because the compiler resolve the |
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417 * type of rtx_pci_dev.pci_device to the type of |
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418 * rtx_pci_dev instead of the type of rtx_pci_dev.pci_device. |
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419 - * |
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420 - * Also, I'm getting placeholder in the generated code if |
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421 - * I don't open a scope here. |
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422 */ |
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423 - { |
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424 - ${PCI::AbstractDevice} *rtx_pdev = ${rtx_pci_dev.pci_device}; |
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425 - ${cast local.rtx_pdev as PCI::AbstractDevice}; |
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426 - ${local.rtx_ether_ctx.init(local.net_dev, local.rtx_pdev)}; |
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427 + ${PCI::AbstractDevice} *workaround = ${rtx_pci_dev.pci_device}; |
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428 + ${cast local.workaround as PCI::AbstractDevice}; |
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429 + { /* XXX: I end up with a placeholder if I don't open a scope */ |
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430 + ${local.rtx_ether_ctx.init(local.rtx_net_dev, local.workaround)}; |
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431 } |
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432 |
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433 /* Register ourselves in the parent context: */ |
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434 @@ -310,7 +342,7 @@ |
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435 ${pointcut Ethernet::adapter_load_mac_address(local.rtx_ether_ctx)}; |
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436 memcpy(${local.rtx_ether_ctx.perm_addr}, |
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437 ${local.rtx_ether_ctx.dev_addr}, |
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438 - ${local.net_dev.netdev}.addr_len); |
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439 + ${local.rtx_net_dev.k_net_dev}->addr_len); |
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440 } |
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441 |
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442 /* This chunk should be removed (see #26) */ |
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443 @@ -327,15 +359,15 @@ |
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444 */ |
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445 chunk PCI::pci_remove_hook(PCI::Device rtx_pci_dev) |
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446 { |
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447 - ${Ethernet::Device} *rtx_ether_ctx = ${rtx_pci_dev.context}; |
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448 - ${Ethernet::AbstractDevice} *rtx_ether_dev = (${Ethernet::AbstractDevice}*) ${local.rtx_ether_ctx.net_device}; |
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449 - |
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450 + ${Ethernet::Device} *rtx_ether_ctx = ${rtx_pci_dev.rtx_drv_context}; |
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451 + ${cast local.rtx_ether_ctx as Ethernet::Device}; /* XXX */ |
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452 BUG_ON(!rtx_ether_ctx); |
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453 |
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454 - ${cast local.rtx_ether_ctx as Ethernet::Device}; |
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455 - ${cast local.rtx_ether_dev as Ethernet::AbstractDevice}; |
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456 - unregister_netdev(&${local.rtx_ether_dev.netdev}); |
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457 - free_netdev(&${local.rtx_ether_dev.netdev}); |
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458 + ${Ethernet::AbstractDevice} *rtx_net_dev = ${local.rtx_ether_ctx.net_device}; |
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459 + ${cast local.rtx_net_dev as Ethernet::AbstractDevice}; /* XXX */ |
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460 + |
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461 + unregister_netdev(${local.rtx_net_dev.k_net_dev}); |
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462 + free_netdev(${local.rtx_net_dev.k_net_dev}); |
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463 } |
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464 |
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465 /* This chunk should be removed (see #26) */ |
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466 diff --git a/rathaxes/samples/e1000/ethernet.rti b/rathaxes/samples/e1000/ethernet.rti |
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467 --- a/rathaxes/samples/e1000/ethernet.rti |
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468 +++ b/rathaxes/samples/e1000/ethernet.rti |
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469 @@ -16,8 +16,15 @@ |
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470 provided type AbstractDevice |
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471 { |
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472 chunk LKM::includes(); |
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473 + method init(Builtin::symbol); |
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474 decl data_types(); |
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475 - attribute Builtin::symbol netdev; |
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476 + |
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477 + attribute Builtin::symbol k_net_dev; |
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478 + /* |
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479 + * XXX: should be a Ethernet::Device, but that causes a circular |
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480 + * dependency. |
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481 + */ |
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482 + attribute Builtin::symbol rtx_ether_ctx; |
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483 } |
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484 |
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485 provided type Device |
105
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104
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486 @@ -34,9 +41,9 @@ |
104
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487 * I'd like to use better names here, but I'd like to understand the |
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488 * difference between the two first: |
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489 */ |
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490 - attribute Builtin::symbol perm_addr; |
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491 - attribute Builtin::symbol dev_addr; |
105
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492 - attribute Builtin::symbol irq; |
104
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493 + attribute Builtin::symbol perm_addr; |
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494 + attribute Builtin::symbol dev_addr; |
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495 + attribute Builtin::symbol irq; |
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496 } |
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497 |
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498 required sequence open(Ethernet::Device) |
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499 diff --git a/rathaxes/samples/e1000/pci.blt b/rathaxes/samples/e1000/pci.blt |
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500 --- a/rathaxes/samples/e1000/pci.blt |
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501 +++ b/rathaxes/samples/e1000/pci.blt |
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502 @@ -16,15 +16,15 @@ |
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503 { |
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|
504 } |
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505 |
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506 - method set_context(Builtin::symbol ctx) |
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507 + method set_rtx_context(Builtin::symbol ctx) |
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508 { |
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509 - pci_set_drvdata(&${self}->data, ${ctx}); |
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510 + pci_set_drvdata(${self.k_pci_dev}, ${ctx}); |
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|
511 } |
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|
512 |
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|
513 map |
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|
514 { |
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515 - data: ${self}->data; |
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516 - drv_data: pci_get_drvdata(&${self}->data); |
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517 + k_pci_dev: ((struct pci_dev *)${self}); |
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518 + rtx_pci_ctx: pci_get_drvdata((struct pci_dev *)${self}); |
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|
519 } |
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First try at splitting the type nightmare and the refactoring
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|
520 } |
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First try at splitting the type nightmare and the refactoring
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|
521 |
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|
522 @@ -52,13 +52,13 @@ |
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|
523 int error; |
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|
524 ${PCI::AbstractDevice} *enable_pdev = self->pdev; |
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525 ${cast local.enable_pdev as PCI::AbstractDevice}; |
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526 - error = pci_enable_device(&${local.enable_pdev.data}); |
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527 + error = pci_enable_device(${local.enable_pdev.k_pci_dev}); |
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|
528 if (error) |
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|
529 return error; |
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530 - error = pci_request_selected_regions(&${local.enable_pdev.data}, self->bars, ${config.name}); |
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531 + error = pci_request_selected_regions(${local.enable_pdev.k_pci_dev}, self->bars, ${config.name}); |
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|
532 if (error) |
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533 return error; |
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534 - pci_set_master(&${local.enable_pdev.data}); |
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535 + pci_set_master(${local.enable_pdev.k_pci_dev}); |
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|
536 return 0; |
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|
537 } |
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|
538 |
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539 @@ -68,8 +68,8 @@ |
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540 ${cast local.disable_pdev as PCI::AbstractDevice}; |
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|
541 if (self->ioaddr) |
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542 iounmap(self->ioaddr); |
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543 - pci_release_selected_regions(&${local.disable_pdev.data}, self->bars); |
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544 - pci_disable_device(&${local.disable_pdev.data}); |
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545 + pci_release_selected_regions(${local.disable_pdev.k_pci_dev}, self->bars); |
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546 + pci_disable_device(${local.disable_pdev.k_pci_dev}); |
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547 } |
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|
548 } |
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|
549 |
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550 @@ -78,7 +78,7 @@ |
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551 ${PCI::AbstractDevice} * workaround = (${PCI::AbstractDevice}*)pdev; |
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552 ${cast local.workaround as PCI::AbstractDevice}; |
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|
553 ${self}->pdev = ${pdev}; |
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554 - ${self}->bars = pci_select_bars(&${local.workaround.data}, IORESOURCE_MEM); |
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555 + ${self}->bars = pci_select_bars(${local.workaround.k_pci_dev}, IORESOURCE_MEM); |
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556 ${self}->ioaddr = NULL; |
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557 ${self}->context = NULL; |
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558 } |
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559 @@ -97,20 +97,20 @@ |
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560 { |
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561 ${PCI::AbstractDevice} *select_ioaddr_pdev = ${self}->pdev; |
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562 ${cast local.select_ioaddr_pdev as PCI::AbstractDevice}; |
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563 - ${self}->ioaddr = pci_ioremap_bar(&${local.select_ioaddr_pdev.data}, ${bar}); |
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564 + ${self}->ioaddr = pci_ioremap_bar(${local.select_ioaddr_pdev.k_pci_dev}, ${bar}); |
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565 } |
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566 |
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567 - method set_context(Builtin::symbol ctx) |
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568 + method set_rtx_drv_context(Builtin::symbol ctx) |
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569 { |
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570 ${self}->context = ctx; |
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571 } |
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572 |
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573 map |
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574 { |
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575 - context: ${self}->context; |
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576 - device: &${self}->pdev->data.dev; |
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577 + rtx_drv_context: ${self}->context; |
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578 + device: &((struct pci_dev *)(${self})->pdev)->dev; |
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579 pci_device: ${self}->pdev; |
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580 - irq: ${self}->pdev->data.irq; |
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581 + irq: ((struct pci_dev *)(${self})->pdev)->irq; |
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582 bars: ${self}->bars; |
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583 ioaddr: ${self}->ioaddr; |
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584 BAR_0: 0; |
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585 @@ -151,7 +151,7 @@ |
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586 ${local.rtx_pci_dev.init(local.rtx_pdev)}; |
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587 } |
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588 |
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589 - /* ${local.pdev.set_context(local.rtx_pci_dev)}; */ |
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590 + /* ${local.pdev.set_rtx_context(local.rtx_pci_dev)}; */ |
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591 pci_set_drvdata(pdev, rtx_pci_dev); |
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592 |
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593 /* ${local.rtx_pci_dev.enable()}; */ |
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594 @@ -184,7 +184,7 @@ |
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595 return 0; |
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596 |
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597 fail: |
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598 - /* ${local.pdev.set_context(NULL)}; */ |
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599 + /* ${local.pdev.set_rtx_drv_context(NULL)}; */ |
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600 pci_set_drvdata(pdev, NULL); |
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601 kfree(rtx_pci_dev); |
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602 return error; |
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603 @@ -210,7 +210,7 @@ |
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604 { |
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605 ${PCI::AbstractDevice} *rtx_pdev = (${PCI::AbstractDevice}*)pdev; |
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606 ${cast local.rtx_pdev as PCI::AbstractDevice}; |
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607 - ${PCI::Device} *rtx_pci_dev = ${rtx_pdev.drv_data}; |
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608 + ${PCI::Device} *rtx_pci_dev = ${rtx_pdev.rtx_pci_ctx}; |
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609 |
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610 BUG_ON(!rtx_pci_dev); |
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611 |
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612 diff --git a/rathaxes/samples/e1000/pci.rti b/rathaxes/samples/e1000/pci.rti |
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613 --- a/rathaxes/samples/e1000/pci.rti |
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614 +++ b/rathaxes/samples/e1000/pci.rti |
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615 @@ -10,10 +10,15 @@ |
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616 |
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617 chunk LKM::includes(); |
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618 method init(PCI::AbstractDevice); |
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619 - method set_context(Builtin::symbol); |
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620 + /* |
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621 + * XXX: the argument should be a PCI::Device but that causes a circular |
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622 + * dependency: |
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623 + */ |
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624 + method set_rtx_context(Builtin::symbol); |
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625 |
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626 - attribute Builtin::symbol data; |
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627 - attribute Builtin::symbol drv_data; |
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628 + attribute Builtin::symbol k_pci_dev; |
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629 + /* XXX: should be PCI::Device (see above point) */ |
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630 + attribute Builtin::symbol rtx_pci_ctx; |
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631 } |
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|
632 |
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633 provided type PCI::Device |
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634 @@ -27,9 +32,9 @@ |
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635 method enable(); |
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|
636 method disable(); |
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|
637 method select_ioaddr(Builtin::number); |
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638 - method set_context(Builtin::symbol); |
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|
639 + method set_rtx_drv_context(Builtin::symbol); |
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|
640 |
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|
641 - attribute Builtin::symbol context; |
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|
642 + attribute Builtin::symbol rtx_drv_context; |
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643 attribute Device::AbstractDevice device; |
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644 attribute PCI::AbstractDevice pci_device; |
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645 attribute Builtin::symbol ioaddr; |
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646 diff --git a/rathaxes/samples/e1000/socket.blt b/rathaxes/samples/e1000/socket.blt |
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647 --- a/rathaxes/samples/e1000/socket.blt |
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|
648 +++ b/rathaxes/samples/e1000/socket.blt |
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649 @@ -14,7 +14,7 @@ |
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|
650 |
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|
651 map |
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|
652 { |
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|
653 - data: ${self}->data; |
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|
654 + k_sk_buff: ((struct sk_buff *)${self}); |
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655 } |
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|
656 } |
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|
657 |
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diff
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|
658 @@ -46,11 +46,12 @@ |
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659 */ |
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|
660 ${Socket::AbstractSKBuff} *skb = self->skbuff; |
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661 ${cast local.skb as Socket::AbstractSKBuff}; |
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662 - ${Ethernet::ProtocolId} ethernet_proto = { .id = be16_to_cpu(${local.skb.data}.protocol) }; |
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663 + ${Ethernet::ProtocolId} ethernet_proto = { .id = be16_to_cpu(${local.skb.k_sk_buff}->protocol) }; |
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|
664 + |
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665 static const char * const ip_summed_values[] = { |
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666 "none", "unnecessary", "complete", "partial" |
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667 }; |
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|
668 - struct skb_shared_info *shinfo = skb_shinfo(&${local.skb.data}); |
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|
669 + struct skb_shared_info *shinfo = skb_shinfo(${local.skb.k_sk_buff}); |
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|
670 |
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|
671 pr_info( |
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parents:
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672 "\t protocol = %#-5x (%s) ip_summed = %d (%s)\n" |
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673 @@ -59,8 +60,8 @@ |
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674 "\t gso_size = %-5u gso_segs = %-5u gso_type = %-5u", |
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|
675 /* XXX: can't use ${local.ethernet_proto.id} here (issue #52): */ |
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676 ethernet_proto.id, ${local.ethernet_proto.str}, |
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677 - ${local.skb.data}.ip_summed, ip_summed_values[${local.skb.data}.ip_summed], |
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678 - ${local.skb.data}.len, ${local.skb.data}.data_len, skb_headlen(&${local.skb.data}), |
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679 + ${local.skb.k_sk_buff}->ip_summed, ip_summed_values[${local.skb.k_sk_buff}->ip_summed], |
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680 + ${local.skb.k_sk_buff}->len, ${local.skb.k_sk_buff}->data_len, skb_headlen(${local.skb.k_sk_buff}), |
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681 shinfo->nr_frags, shinfo->gso_size, shinfo->gso_segs, shinfo->gso_type |
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682 ); |
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683 } |
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684 @@ -72,14 +73,13 @@ |
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685 ${Socket::AbstractSKBuff} *skb = self->skbuff; |
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686 ${cast local.skb as Socket::AbstractSKBuff}; |
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687 |
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688 - WARN_ON(!skb); |
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689 - WARN_ON(!${local.skb.data}.data); |
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690 + WARN_ON(!${local.skb.k_sk_buff}); |
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691 WARN_ON(self->dma_handle); |
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692 |
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693 self->dma_handle = dma_map_single( |
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694 dev, |
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695 - &${local.skb.data}.data, |
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696 - skb_headlen(&${local.skb.data}), |
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697 + ${local.skb.k_sk_buff}, |
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698 + skb_headlen(${local.skb.k_sk_buff}), |
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699 direction); |
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700 int err = dma_mapping_error(dev, self->dma_handle); |
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701 if (err) |
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702 @@ -97,18 +97,17 @@ |
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703 ${Socket::AbstractSKBuff} *skb = self->skbuff; |
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704 ${cast local.skb as Socket::AbstractSKBuff}; |
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705 |
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706 - WARN_ON(!${local.skb}); |
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707 - WARN_ON(!${local.skb.data}.data); |
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708 + WARN_ON(!${local.skb.k_sk_buff}); |
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709 |
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710 if (self->dma_handle) |
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711 { |
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712 dma_unmap_single(dev, |
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713 self->dma_handle, |
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714 - skb_headlen(&${local.skb.data}), |
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715 + skb_headlen(${local.skb.k_sk_buff}), |
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716 direction); |
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717 self->dma_handle = 0; |
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718 } |
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719 - dev_kfree_skb_any(&${local.skb.data}); |
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720 + dev_kfree_skb_any(${local.skb.k_sk_buff}); |
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721 self->skbuff = 0; |
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722 } |
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723 } |
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724 @@ -131,22 +130,22 @@ |
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725 |
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726 method map_to(Device::AbstractDevice dev) |
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727 { |
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728 - rtx_socket_skbuff_map(${self}, &${dev.data}, DMA_TO_DEVICE); |
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729 + rtx_socket_skbuff_map(${self}, ${dev.k_device}, DMA_TO_DEVICE); |
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730 } |
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|
731 |
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732 method map_from(Device::AbstractDevice dev) |
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733 { |
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734 - rtx_socket_skbuff_map(${self}, &${dev.data}, DMA_FROM_DEVICE); |
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735 + rtx_socket_skbuff_map(${self}, ${dev.k_device}, DMA_FROM_DEVICE); |
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|
736 } |
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737 |
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738 method unmap_to_and_free(Device::AbstractDevice dev) |
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|
739 { |
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|
740 - rtx_socket_skbuff_unmap_and_free(${self}, &${dev.data}, DMA_TO_DEVICE); |
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741 + rtx_socket_skbuff_unmap_and_free(${self}, ${dev.k_device}, DMA_TO_DEVICE); |
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742 } |
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743 |
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744 method unmap_from_and_free(Device::AbstractDevice dev) |
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|
745 { |
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|
746 - rtx_socket_skbuff_unmap_and_free(${self}, &${dev.data}, DMA_FROM_DEVICE); |
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747 + rtx_socket_skbuff_unmap_and_free(${self}, ${dev.k_device}, DMA_FROM_DEVICE); |
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|
748 } |
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|
749 |
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|
750 map |
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parents:
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changeset
|
751 diff --git a/rathaxes/samples/e1000/socket.rti b/rathaxes/samples/e1000/socket.rti |
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752 --- a/rathaxes/samples/e1000/socket.rti |
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|
753 +++ b/rathaxes/samples/e1000/socket.rti |
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754 @@ -5,7 +5,8 @@ |
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|
755 { |
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First try at splitting the type nightmare and the refactoring
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|
756 chunk LKM::includes(); |
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|
757 decl data_types(); |
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|
758 - attribute Builtin::symbol data; |
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First try at splitting the type nightmare and the refactoring
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changeset
|
759 + |
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|
760 + attribute Builtin::symbol k_sk_buff; |
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parents:
diff
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|
761 } |
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diff
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|
762 |
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763 provided type SKBuff |