qla_nvme.h 3.6 KB

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  1. /* SPDX-License-Identifier: GPL-2.0-only */
  2. /*
  3. * QLogic Fibre Channel HBA Driver
  4. * Copyright (c) 2003-2017 QLogic Corporation
  5. */
  6. #ifndef __QLA_NVME_H
  7. #define __QLA_NVME_H
  8. #include <uapi/scsi/fc/fc_fs.h>
  9. #include <uapi/scsi/fc/fc_els.h>
  10. #include <linux/nvme-fc-driver.h>
  11. #include "qla_def.h"
  12. #include "qla_dsd.h"
  13. #define MIN_NVME_HW_QUEUES 1
  14. #define DEF_NVME_HW_QUEUES 8
  15. #define NVME_ATIO_CMD_OFF 32
  16. #define NVME_FIRST_PACKET_CMDLEN (64 - NVME_ATIO_CMD_OFF)
  17. #define Q2T_NVME_NUM_TAGS 2048
  18. #define QLA_MAX_FC_SEGMENTS 64
  19. struct scsi_qla_host;
  20. struct qla_hw_data;
  21. struct req_que;
  22. struct srb;
  23. struct nvme_private {
  24. struct srb *sp;
  25. struct nvmefc_ls_req *fd;
  26. struct work_struct ls_work;
  27. struct work_struct abort_work;
  28. int comp_status;
  29. spinlock_t cmd_lock;
  30. };
  31. struct qla_nvme_rport {
  32. struct fc_port *fcport;
  33. };
  34. #define COMMAND_NVME 0x88 /* Command Type FC-NVMe IOCB */
  35. struct cmd_nvme {
  36. uint8_t entry_type; /* Entry type. */
  37. uint8_t entry_count; /* Entry count. */
  38. uint8_t sys_define; /* System defined. */
  39. uint8_t entry_status; /* Entry Status. */
  40. uint32_t handle; /* System handle. */
  41. __le16 nport_handle; /* N_PORT handle. */
  42. __le16 timeout; /* Command timeout. */
  43. __le16 dseg_count; /* Data segment count. */
  44. __le16 nvme_rsp_dsd_len; /* NVMe RSP DSD length */
  45. uint64_t rsvd;
  46. __le16 control_flags; /* Control Flags */
  47. #define CF_ADMIN_ASYNC_EVENT BIT_13
  48. #define CF_NVME_FIRST_BURST_ENABLE BIT_11
  49. #define CF_DIF_SEG_DESCR_ENABLE BIT_3
  50. #define CF_DATA_SEG_DESCR_ENABLE BIT_2
  51. #define CF_READ_DATA BIT_1
  52. #define CF_WRITE_DATA BIT_0
  53. __le16 nvme_cmnd_dseg_len; /* Data segment length. */
  54. __le64 nvme_cmnd_dseg_address __packed;/* Data segment address. */
  55. __le64 nvme_rsp_dseg_address __packed; /* Data segment address. */
  56. __le32 byte_count; /* Total byte count. */
  57. uint8_t port_id[3]; /* PortID of destination port. */
  58. uint8_t vp_index;
  59. struct dsd64 nvme_dsd;
  60. };
  61. #define PT_LS4_REQUEST 0x89 /* Link Service pass-through IOCB (request) */
  62. struct pt_ls4_request {
  63. uint8_t entry_type;
  64. uint8_t entry_count;
  65. uint8_t sys_define;
  66. uint8_t entry_status;
  67. uint32_t handle;
  68. __le16 status;
  69. __le16 nport_handle;
  70. __le16 tx_dseg_count;
  71. uint8_t vp_index;
  72. uint8_t rsvd;
  73. __le16 timeout;
  74. __le16 control_flags;
  75. #define CF_LS4_SHIFT 13
  76. #define CF_LS4_ORIGINATOR 0
  77. #define CF_LS4_RESPONDER 1
  78. #define CF_LS4_RESPONDER_TERM 2
  79. __le16 rx_dseg_count;
  80. __le16 rsvd2;
  81. __le32 exchange_address;
  82. __le32 rsvd3;
  83. __le32 rx_byte_count;
  84. __le32 tx_byte_count;
  85. struct dsd64 dsd[2];
  86. };
  87. #define PT_LS4_UNSOL 0x56 /* pass-up unsolicited rec FC-NVMe request */
  88. struct pt_ls4_rx_unsol {
  89. uint8_t entry_type;
  90. uint8_t entry_count;
  91. __le16 rsvd0;
  92. __le16 rsvd1;
  93. uint8_t vp_index;
  94. uint8_t rsvd2;
  95. __le16 rsvd3;
  96. __le16 nport_handle;
  97. __le16 frame_size;
  98. __le16 rsvd4;
  99. __le32 exchange_address;
  100. uint8_t d_id[3];
  101. uint8_t r_ctl;
  102. be_id_t s_id;
  103. uint8_t cs_ctl;
  104. uint8_t f_ctl[3];
  105. uint8_t type;
  106. __le16 seq_cnt;
  107. uint8_t df_ctl;
  108. uint8_t seq_id;
  109. __le16 rx_id;
  110. __le16 ox_id;
  111. __le32 param;
  112. __le32 desc0;
  113. #define PT_LS4_PAYLOAD_OFFSET 0x2c
  114. #define PT_LS4_FIRST_PACKET_LEN 20
  115. __le32 desc_len;
  116. __le32 payload[3];
  117. };
  118. /*
  119. * Global functions prototype in qla_nvme.c source file.
  120. */
  121. int qla_nvme_register_hba(struct scsi_qla_host *);
  122. int qla_nvme_register_remote(struct scsi_qla_host *, struct fc_port *);
  123. void qla_nvme_delete(struct scsi_qla_host *);
  124. void qla24xx_nvme_ls4_iocb(struct scsi_qla_host *, struct pt_ls4_request *,
  125. struct req_que *);
  126. void qla24xx_async_gffid_sp_done(struct srb *sp, int);
  127. #endif