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HBA_SendCTPassThru(3hbaapi)
HB...u(3HBAAPCIo)mmon Fibre Channel HBA Information Library FunctioHnBs...u(3HBAAPI)
NAME
HBA_SendCTPassThru, HBA_SendCTPassThruV2 - end a Fibre Channel Common
Transport request to a Fabric
SYNOPSIS
cc [ flag... ] file... -lHBAAPI [ library... ]
#include <hbaapi.h>
HBA_STATUS HBA_SendCTPassThru(HBA_HANDLE handle,
void *pReqBuffer, HBA_UINT32 ReqBufferSize,
void *pRspBuffer, HBA_UINT32 RspBufferSize);
HBA_STATUS HBA_SendCTPassThruV2(HBA_HANDLE handle,
HBA_WWN hbaPortWWN, void *pReqBuffer,
HBA_UINT32 ReqBufferSize, void *pRspBuffer,
HBA_UINT32 *RspBufferSize);
PARAMETERS
handle an open handle returned from HBA_OpenAdapter(3HBAAPI)
hbaPortWWN the Port Name of the local HBA Port through which the
caller is issuing the CT request
pReqBuffer a pointer to a CT_IU request. The contents of the
buffer must be in big-endian byte order
ReqBufferSize the length of the CT_IU request buffer pReqBuffer
pRspBuffer a pointer to a CT_IU response buffer. The response re‐
ceived from the fabric is copied into this buffer in
big-endian byte order. Success of the function need
not imply success of the command. The CT_IU Com‐
mand/Response field should be checked for the Accept
Response code.
RspBufferSize
HBA_SendCTPassThru() the length of the CT_IU accept
response buffer pRspBuffer.
HBA_SendCTPassThruV2() a Pointer to the length of the
CT_IU accept response buffer
pRspBuffer.
DESCRIPTION
The HBA_SendCTPassThru() and HBA_SendCTPassThruV2() functions provide
access to the standard in-band fabric management interface. The pRe‐
qBuffer argument is interpreted as a CT_IU request, as defined by the
T11 specification FC-GS-3, and is routed in the fabric based on the
GS_TYPE field.
RETURN VALUES
Upon successful transport and receipt of a CT_IU response, HBA_SendCT‐
PassThru() returns HBA_STATUS_OK. The CT_IU payload indicates whether
the command was accepted by the fabric based on the Command/Response
code returned. Otherwise, an error value is returned from the underly‐
ing VSL and the values in pRspBuffer are undefined.
Upon successful transport and receipt of a CT_IU response, HBA_SendCT‐
PassThruV2() returns HBA_STATUS_OK. The CT_IU payload indicates whether
the command was accepted by the fabric based on the Command/Response
code returned. Otherwise, an error code is returned from the underlying
VSL, and the values in pRspBuffer are undefined. The HBA_SendCT‐
PassThruV2() function returns the following values:
HBA_STATUS_ERROR_ILLEGAL_WWN
The value of hbaPortWWN is not a valid port WWN on the specified
HBA.
HBA_STATUS_ERROR
An error occurred.
ERRORS
See libhbaapi(3LIB) for general error status values.
EXAMPLES
Example 1 Data structures for the GIEL command.
struct ct_iu_preamble {
uint32_t ct_rev : 8,
ct_inid : 24;
uint32_t ct_fcstype : 8,
ct_fcssubtype : 8,
ct_options : 8,
ct_reserved1 : 8;
uint32_t ct_cmdrsp : 16,
ct_aiusize : 16;
uint32_t ct_reserved2 : 8,
ct_reason : 8,
ct_expln : 8,
ct_vendor : 8;
};
struct gs_ms_ic_elem {
uchar_t elem_name[8];
uint32_t reserved1 : 24,
elem_type : 8;
};
struct gs_ms_giel_rsp {
struct ct_iu_preamble ct_header;
uint32_t num_elems;
struct gs_ms_ic_elem elem_list[1];
};
#define MAX_PAYLOAD_LEN 65536 /* 64K */
Example 2 Send an GIEL Management Service command through the given HBA
handle.
The following example sends an GIEL Management Service command through
the given HBA handle.
req.ct_rev = 0x01;
req.ct_fcstype = 0xFA; /* Management Service */
req.ct_fcssubtype = 0x01; /* Config server */
req.ct_cmdrsp = 0x0101; /* GIEL command */
req.ct_aiusize = MAX_PAYLOAD_LEN / 4 -
sizeof (struct ct_iu_preamble) / 4;
if ((status = HBA_SendCTPassThru(handle, &req, sizeof (req),
rsp, MAX_PAYLOAD_LEN)) != HBA_STATUS_OK) {
fprintf(stderr, "Unable to issue CT command on \"%s\""
" for reason %d\n", adaptername, status);
} else {
giel = (struct gs_ms_giel_rsp *)rsp;
if (giel->ct_header.ct_cmdrsp != 0x8002) {
fprintf(stderr, "CT command rejected on HBA "
"\"%s\"\n", adaptername);
} else {
for (cntr = 0; cntr < giel->num_elems; cntr++) {
memcpy(&wwn, giel->elem_list[cntr].elem_name, 8);
printf(" Fabric element name: %016llx\n", wwn);
}
}
}
ATTRIBUTES
See attributes(7) for descriptions of the following attributes:
tab() box; cw(2.75i) |cw(2.75i) lw(2.75i) |lw(2.75i) ATTRIBUTE TYPEAT‐
TRIBUTE VALUE _ Interface StabilityCommitted _ T{ Standard: FC-HBA Ver‐
sion 4 (API version 2) T} _ MT-LevelSafe _ StandardFC-MI 1.92 (API ver‐
sion 1)
SEE ALSO
HBA_OpenAdapter(3HBAAPI), libhbaapi(3LIB), attributes(7)
T11 FC-MI Specification
BUGS
The HBA_SendCTPassThru() function does not take a portindex to define
through which port of a multi-ported HBA to send the command. The be‐
havior on multi-ported HBAs is vendor specific, and can result in the
command always being sent on port 0 of the HBA. SNIA version 2 defines
HBA_SendCTPassThruV2() which takes a Port WWN as an argument. This
fixes the bug with multi-ported HBAs in HBA_SendCTPassThru().
Oracle Solaris 11.4 1 Sep 2003 HB...u(3HBAAPI)