[SCSI] libfcoe: Set fip_flags according to fcf and lport's capability of SPMA support

When encap the els for FIP, set the fip_flags according to the FCF and lport's
capability of supporting SPMA or FPMA or both.

Signed-off-by: Yi Zou <yi.zou@intel.com>
Signed-off-by: Robert Love <robert.w.love@intel.com>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>

1 files changed, 9 insertions, 3 deletions

diff --git a/drivers/scsi/fcoe/libfcoe.c b/drivers/scsi/fcoe/libfcoe.c
index d6ed3f8255ad..78caa6be1130 100644
--- a/drivers/scsi/fcoe/libfcoe.c
+++ b/drivers/scsi/fcoe/libfcoe.c
@@ -413,10 +413,18 @@ static int fcoe_ctlr_encaps(struct fcoe_ctlr *fip,
         struct fip_mac_desc *mac;
         struct fcoe_fcf *fcf;
         size_t dlen;
+        u16 fip_flags;
 
         fcf = fip->sel_fcf;
         if (!fcf)
                 return -ENODEV;
+
+        /* set flags according to both FCF and lport's capability on SPMA */
+        fip_flags = fcf->flags;
+        fip_flags &= fip->spma ? FIP_FL_SPMA | FIP_FL_FPMA : FIP_FL_FPMA;
+        if (!fip_flags)
+                return -ENODEV;
+
         dlen = sizeof(struct fip_encaps) + skb->len;    /* len before push */
         cap = (struct fip_encaps_head *)skb_push(skb, sizeof(*cap));
 
@@ -429,9 +437,7 @@ static int fcoe_ctlr_encaps(struct fcoe_ctlr *fip,
         cap->fip.fip_op = htons(FIP_OP_LS);
         cap->fip.fip_subcode = FIP_SC_REQ;
         cap->fip.fip_dl_len = htons((dlen + sizeof(*mac)) / FIP_BPW);
-        cap->fip.fip_flags = htons(FIP_FL_FPMA);
-        if (fip->spma)
-                cap->fip.fip_flags |= htons(FIP_FL_SPMA);
+        cap->fip.fip_flags = htons(fip_flags);
 
         cap->encaps.fd_desc.fip_dtype = dtype;
         cap->encaps.fd_desc.fip_dlen = dlen / FIP_BPW;