| /* From iscsi_iser.h */ |
| |
| struct iser_hdr { |
| u8 flags; |
| u8 rsvd[3]; |
| __be32 write_stag; /* write rkey */ |
| __be64 write_va; |
| __be32 read_stag; /* read rkey */ |
| __be64 read_va; |
| } __packed; |
| |
| /*Constant PDU lengths calculations */ |
| #define ISER_HEADERS_LEN (sizeof(struct iser_hdr) + sizeof(struct iscsi_hdr)) |
| |
| #define ISER_RECV_DATA_SEG_LEN 8192 |
| #define ISER_RX_PAYLOAD_SIZE (ISER_HEADERS_LEN + ISER_RECV_DATA_SEG_LEN) |
| #define ISER_RX_LOGIN_SIZE (ISER_HEADERS_LEN + ISCSI_DEF_MAX_RECV_SEG_LEN) |
| |
| /* QP settings */ |
| /* Maximal bounds on received asynchronous PDUs */ |
| #define ISERT_MAX_TX_MISC_PDUS 4 /* NOOP_IN(2) , ASYNC_EVENT(2) */ |
| |
| #define ISERT_MAX_RX_MISC_PDUS 6 /* NOOP_OUT(2), TEXT(1), * |
| * SCSI_TMFUNC(2), LOGOUT(1) */ |
| |
| #define ISCSI_DEF_XMIT_CMDS_MAX 128 /* from libiscsi.h, must be power of 2 */ |
| |
| #define ISERT_QP_MAX_RECV_DTOS (ISCSI_DEF_XMIT_CMDS_MAX) |
| |
| #define ISERT_MIN_POSTED_RX (ISCSI_DEF_XMIT_CMDS_MAX >> 2) |
| |
| #define ISERT_INFLIGHT_DATAOUTS 8 |
| |
| #define ISERT_QP_MAX_REQ_DTOS (ISCSI_DEF_XMIT_CMDS_MAX * \ |
| (1 + ISERT_INFLIGHT_DATAOUTS) + \ |
| ISERT_MAX_TX_MISC_PDUS + \ |
| ISERT_MAX_RX_MISC_PDUS) |
| |
| #define ISER_RX_PAD_SIZE (ISER_RECV_DATA_SEG_LEN + 4096 - \ |
| (ISER_RX_PAYLOAD_SIZE + sizeof(u64) + sizeof(struct ib_sge))) |
| |
| #define ISER_VER 0x10 |
| #define ISER_WSV 0x08 |
| #define ISER_RSV 0x04 |
| #define ISCSI_CTRL 0x10 |
| #define ISER_HELLO 0x20 |
| #define ISER_HELLORPLY 0x30 |
