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authorChris Leech <christopher.leech@intel.com>2009-11-03 11:46:24 -0800
committerJames Bottomley <James.Bottomley@suse.de>2009-12-04 12:00:57 -0600
commitdb36c06cc6802d03bcba08982377f7c03a3cda7f (patch)
tree9a9ad60bd0de059f1839b8bab2cfc555d0ca56d1 /include/scsi/fc_encode.h
parent8faecddb212d502b1b77936498b9a82b13c4ff44 (diff)
downloadop-kernel-dev-db36c06cc6802d03bcba08982377f7c03a3cda7f.zip
op-kernel-dev-db36c06cc6802d03bcba08982377f7c03a3cda7f.tar.gz
[SCSI] libfc, libfcoe: FDISC ELS for NPIV
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>
Diffstat (limited to 'include/scsi/fc_encode.h')
-rw-r--r--include/scsi/fc_encode.h29
1 files changed, 29 insertions, 0 deletions
diff --git a/include/scsi/fc_encode.h b/include/scsi/fc_encode.h
index 27dad70..c93ca3e 100644
--- a/include/scsi/fc_encode.h
+++ b/include/scsi/fc_encode.h
@@ -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;
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