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