[PATCH 02/24] libfcoe: Allow FIP to be disabled by the driver

Robert Love
2009-09-18T22:48:55Z

Allow FIP to be disabled by the driver for devices
that want to use libfcoe in non-FIP mode.

The driver merely sets the fcoe_ctlr mode to the state which
should be entered when the link comes up. The default is auto.
No change is needed for fcoe.c which uses auto mode.

Signed-off-by: Joe Eykholt <jeykholt@cisco.com>
Signed-off-by: Robert Love <robert.w.love@intel.com>
---

drivers/scsi/fcoe/libfcoe.c | 6 ++++--
include/scsi/libfcoe.h | 2 ++
2 files changed, 6 insertions(+), 2 deletions(-)

diff --git a/drivers/scsi/fcoe/libfcoe.c b/drivers/scsi/fcoe/libfcoe.c
index a563c99..b1e4d25 100644
--- a/drivers/scsi/fcoe/libfcoe.c
+++ b/drivers/scsi/fcoe/libfcoe.c
@@ -110,6 +110,7 @@ static inline int fcoe_ctlr_fcf_usable(struct fcoe_fcf *fcf)
void fcoe_ctlr_init(struct fcoe_ctlr *fip)
{
fip->state = FIP_ST_LINK_WAIT;
+ fip->mode = FIP_ST_AUTO;
INIT_LIST_HEAD(&fip->fcfs);
spin_lock_init(&fip->lock);
fip->flogi_oxid = FC_XID_UNKNOWN;
@@ -262,11 +263,12 @@ void fcoe_ctlr_link_up(struct fcoe_ctlr *fip)
spin_unlock_bh(&fip->lock);
fc_linkup(fip->lp);
} else if (fip->state == FIP_ST_LINK_WAIT) {
- fip->state = FIP_ST_AUTO;
+ fip->state = fip->mode;
fip->last_link = 1;
fip->link = 1;
spin_unlock_bh(&fip->lock);
- LIBFCOE_FIP_DBG("%s", "setting AUTO mode.\n");
+ if (fip->state == FIP_ST_AUTO)
+ LIBFCOE_FIP_DBG("%s", "setting AUTO mode.\n");
fc_linkup(fip->lp);
fcoe_ctlr_solicit(fip, NULL);
} else
diff --git a/include/scsi/libfcoe.h b/include/scsi/libfcoe.h
index 76d08c9..2344a00 100644
--- a/include/scsi/libfcoe.h
+++ b/include/scsi/libfcoe.h
@@ -55,6 +55,7 @@ enum fip_state {
/**
* struct fcoe_ctlr - FCoE Controller and FIP state
* @state: internal FIP state for network link and FIP or non-FIP mode.
+ * @mode: LLD-selected mode.
* @lp: &fc_lport: libfc local port.
* @sel_fcf: currently selected FCF, or NULL.
* @fcfs: list of discovered FCFs.
@@ -89,6 +90,7 @@ enum fip_state {
*/
struct fcoe_ctlr {
enum fip_state state;
+ enum fip_state mode;
struct fc_lport *lp;
struct fcoe_fcf *sel_fcf;
struct list_head fcfs;