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[SCSI] libfc, libfcoe: FDISC ELS for NPIV

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Add FDISC ELS handling to libfc and libfcoe, treat it the same as FLOGI where
appropriate.

Add checking for NPIV support in the FLOGI LS_ACC service parameters.

Signed-off-by: Chris Leech <christopher.leech@intel.com>
Signed-off-by: Robert Love <robert.w.love@intel.com>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
This commit is contained in:
Chris Leech 2009-11-03 11:46:24 -08:00 • committed by James Bottomley
parent 8faecddb21
commit db36c06cc6
4 changed files with 40 additions and 5 deletions
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29
include/scsi/fc_encode.h
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@ -198,6 +198,31 @@ static inline void fc_flogi_fill(struct fc_lport *lport, struct fc_frame *fp)
sp->sp_bb_data = htons((u16) lport->mfs);
cp = &flogi->fl_cssp[3 - 1]; /* class 3 parameters */
cp->cp_class = htons(FC_CPC_VALID | FC_CPC_SEQ);
if (lport->does_npiv)
sp->sp_features = htons(FC_SP_FT_NPIV);
}
/**
* fc_fdisc_fill - Fill in a fdisc request frame.
*/
static inline void fc_fdisc_fill(struct fc_lport *lport, struct fc_frame *fp)
{
struct fc_els_csp *sp;
struct fc_els_cssp *cp;
struct fc_els_flogi *fdisc;
fdisc = fc_frame_payload_get(fp, sizeof(*fdisc));
memset(fdisc, 0, sizeof(*fdisc));
fdisc->fl_cmd = (u8) ELS_FDISC;
put_unaligned_be64(lport->wwpn, &fdisc->fl_wwpn);
put_unaligned_be64(lport->wwnn, &fdisc->fl_wwnn);
sp = &fdisc->fl_csp;
sp->sp_hi_ver = 0x20;
sp->sp_lo_ver = 0x20;
sp->sp_bb_cred = htons(10); /* this gets set by gateway */
sp->sp_bb_data = htons((u16) lport->mfs);
cp = &fdisc->fl_cssp[3 - 1]; /* class 3 parameters */
cp->cp_class = htons(FC_CPC_VALID | FC_CPC_SEQ);
}
/**
@ -296,6 +321,10 @@ static inline int fc_els_fill(struct fc_lport *lport,
fc_flogi_fill(lport, fp);
break;
case ELS_FDISC:
fc_fdisc_fill(lport, fp);
break;
case ELS_LOGO:
fc_logo_fill(lport, fp);
break;