ibmveth.h 5.9 KB

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  1. /*
  2. * IBM Power Virtual Ethernet Device Driver
  3. *
  4. * This program is free software; you can redistribute it and/or modify
  5. * it under the terms of the GNU General Public License as published by
  6. * the Free Software Foundation; either version 2 of the License, or
  7. * (at your option) any later version.
  8. *
  9. * This program is distributed in the hope that it will be useful,
  10. * but WITHOUT ANY WARRANTY; without even the implied warranty of
  11. * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
  12. * GNU General Public License for more details.
  13. *
  14. * You should have received a copy of the GNU General Public License
  15. * along with this program; if not, write to the Free Software
  16. * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
  17. *
  18. * Copyright (C) IBM Corporation, 2003, 2010
  19. *
  20. * Authors: Dave Larson <larson1@us.ibm.com>
  21. * Santiago Leon <santil@linux.vnet.ibm.com>
  22. * Brian King <brking@linux.vnet.ibm.com>
  23. * Robert Jennings <rcj@linux.vnet.ibm.com>
  24. * Anton Blanchard <anton@au.ibm.com>
  25. */
  26. #ifndef _IBMVETH_H
  27. #define _IBMVETH_H
  28. /* constants for H_MULTICAST_CTRL */
  29. #define IbmVethMcastReceptionModifyBit 0x80000UL
  30. #define IbmVethMcastReceptionEnableBit 0x20000UL
  31. #define IbmVethMcastFilterModifyBit 0x40000UL
  32. #define IbmVethMcastFilterEnableBit 0x10000UL
  33. #define IbmVethMcastEnableRecv (IbmVethMcastReceptionModifyBit | IbmVethMcastReceptionEnableBit)
  34. #define IbmVethMcastDisableRecv (IbmVethMcastReceptionModifyBit)
  35. #define IbmVethMcastEnableFiltering (IbmVethMcastFilterModifyBit | IbmVethMcastFilterEnableBit)
  36. #define IbmVethMcastDisableFiltering (IbmVethMcastFilterModifyBit)
  37. #define IbmVethMcastAddFilter 0x1UL
  38. #define IbmVethMcastRemoveFilter 0x2UL
  39. #define IbmVethMcastClearFilterTable 0x3UL
  40. #define IBMVETH_ILLAN_PADDED_PKT_CSUM 0x0000000000002000UL
  41. #define IBMVETH_ILLAN_TRUNK_PRI_MASK 0x0000000000000F00UL
  42. #define IBMVETH_ILLAN_IPV6_TCP_CSUM 0x0000000000000004UL
  43. #define IBMVETH_ILLAN_IPV4_TCP_CSUM 0x0000000000000002UL
  44. #define IBMVETH_ILLAN_ACTIVE_TRUNK 0x0000000000000001UL
  45. /* hcall macros */
  46. #define h_register_logical_lan(ua, buflst, rxq, fltlst, mac) \
  47. plpar_hcall_norets(H_REGISTER_LOGICAL_LAN, ua, buflst, rxq, fltlst, mac)
  48. #define h_free_logical_lan(ua) \
  49. plpar_hcall_norets(H_FREE_LOGICAL_LAN, ua)
  50. #define h_add_logical_lan_buffer(ua, buf) \
  51. plpar_hcall_norets(H_ADD_LOGICAL_LAN_BUFFER, ua, buf)
  52. static inline long h_send_logical_lan(unsigned long unit_address,
  53. unsigned long desc1, unsigned long desc2, unsigned long desc3,
  54. unsigned long desc4, unsigned long desc5, unsigned long desc6,
  55. unsigned long corellator_in, unsigned long *corellator_out)
  56. {
  57. long rc;
  58. unsigned long retbuf[PLPAR_HCALL9_BUFSIZE];
  59. rc = plpar_hcall9(H_SEND_LOGICAL_LAN, retbuf, unit_address, desc1,
  60. desc2, desc3, desc4, desc5, desc6, corellator_in);
  61. *corellator_out = retbuf[0];
  62. return rc;
  63. }
  64. static inline long h_illan_attributes(unsigned long unit_address,
  65. unsigned long reset_mask, unsigned long set_mask,
  66. unsigned long *ret_attributes)
  67. {
  68. long rc;
  69. unsigned long retbuf[PLPAR_HCALL_BUFSIZE];
  70. rc = plpar_hcall(H_ILLAN_ATTRIBUTES, retbuf, unit_address,
  71. reset_mask, set_mask);
  72. *ret_attributes = retbuf[0];
  73. return rc;
  74. }
  75. #define h_multicast_ctrl(ua, cmd, mac) \
  76. plpar_hcall_norets(H_MULTICAST_CTRL, ua, cmd, mac)
  77. #define h_change_logical_lan_mac(ua, mac) \
  78. plpar_hcall_norets(H_CHANGE_LOGICAL_LAN_MAC, ua, mac)
  79. #define IBMVETH_NUM_BUFF_POOLS 5
  80. #define IBMVETH_IO_ENTITLEMENT_DEFAULT 4243456 /* MTU of 1500 needs 4.2Mb */
  81. #define IBMVETH_BUFF_OH 22 /* Overhead: 14 ethernet header + 8 opaque handle */
  82. #define IBMVETH_MIN_MTU 68
  83. #define IBMVETH_MAX_POOL_COUNT 4096
  84. #define IBMVETH_BUFF_LIST_SIZE 4096
  85. #define IBMVETH_FILT_LIST_SIZE 4096
  86. #define IBMVETH_MAX_BUF_SIZE (1024 * 128)
  87. static int pool_size[] = { 512, 1024 * 2, 1024 * 16, 1024 * 32, 1024 * 64 };
  88. static int pool_count[] = { 256, 512, 256, 256, 256 };
  89. static int pool_active[] = { 1, 1, 0, 0, 0};
  90. #define IBM_VETH_INVALID_MAP ((u16)0xffff)
  91. struct ibmveth_buff_pool {
  92. u32 size;
  93. u32 index;
  94. u32 buff_size;
  95. u32 threshold;
  96. atomic_t available;
  97. u32 consumer_index;
  98. u32 producer_index;
  99. u16 *free_map;
  100. dma_addr_t *dma_addr;
  101. struct sk_buff **skbuff;
  102. int active;
  103. struct kobject kobj;
  104. };
  105. struct ibmveth_rx_q {
  106. u64 index;
  107. u64 num_slots;
  108. u64 toggle;
  109. dma_addr_t queue_dma;
  110. u32 queue_len;
  111. struct ibmveth_rx_q_entry *queue_addr;
  112. };
  113. struct ibmveth_adapter {
  114. struct vio_dev *vdev;
  115. struct net_device *netdev;
  116. struct napi_struct napi;
  117. struct net_device_stats stats;
  118. unsigned int mcastFilterSize;
  119. unsigned long mac_addr;
  120. void * buffer_list_addr;
  121. void * filter_list_addr;
  122. dma_addr_t buffer_list_dma;
  123. dma_addr_t filter_list_dma;
  124. struct ibmveth_buff_pool rx_buff_pool[IBMVETH_NUM_BUFF_POOLS];
  125. struct ibmveth_rx_q rx_queue;
  126. int pool_config;
  127. int rx_csum;
  128. void *bounce_buffer;
  129. dma_addr_t bounce_buffer_dma;
  130. u64 fw_ipv6_csum_support;
  131. u64 fw_ipv4_csum_support;
  132. /* adapter specific stats */
  133. u64 replenish_task_cycles;
  134. u64 replenish_no_mem;
  135. u64 replenish_add_buff_failure;
  136. u64 replenish_add_buff_success;
  137. u64 rx_invalid_buffer;
  138. u64 rx_no_buffer;
  139. u64 tx_map_failed;
  140. u64 tx_send_failed;
  141. };
  142. struct ibmveth_buf_desc_fields {
  143. u32 flags_len;
  144. #define IBMVETH_BUF_VALID 0x80000000
  145. #define IBMVETH_BUF_TOGGLE 0x40000000
  146. #define IBMVETH_BUF_NO_CSUM 0x02000000
  147. #define IBMVETH_BUF_CSUM_GOOD 0x01000000
  148. #define IBMVETH_BUF_LEN_MASK 0x00FFFFFF
  149. u32 address;
  150. };
  151. union ibmveth_buf_desc {
  152. u64 desc;
  153. struct ibmveth_buf_desc_fields fields;
  154. };
  155. struct ibmveth_rx_q_entry {
  156. u32 flags_off;
  157. #define IBMVETH_RXQ_TOGGLE 0x80000000
  158. #define IBMVETH_RXQ_TOGGLE_SHIFT 31
  159. #define IBMVETH_RXQ_VALID 0x40000000
  160. #define IBMVETH_RXQ_NO_CSUM 0x02000000
  161. #define IBMVETH_RXQ_CSUM_GOOD 0x01000000
  162. #define IBMVETH_RXQ_OFF_MASK 0x0000FFFF
  163. u32 length;
  164. u64 correlator;
  165. };
  166. #endif /* _IBMVETH_H */