src/patches/suse-2.6.27.39/patches.drivers/libfc-when-rport-goes-away-re.diff

   1 From: Abhijeet Joglekar <abjoglek@cisco.com>
   2 Subject: libfc: when rport goes away (re-plogi), clean up exchanges to/from rport
   3 References: bnc #465596
   4
   5 When a rport goes away, libFC does a plogi which will reset exchanges
   6     at the rport. Clean exchanges at our end, both in transport and libFC.
   7     If transport hooks into exch_mgr_reset, it will call back into
   8     fc_exch_mgr_reset() to clean up libFC exchanges.
   9
  10 Signed-off-by: Abhijeet Joglekar <abjoglek@cisco.com>
  11 Acked-by: Bernhard Walle <bwalle@suse.de>
  12 ---
  13
  14  drivers/scsi/libfc/fc_rport.c |    7 ++++++-
  15  1 file changed, 6 insertions(+), 1 deletion(-)
  16
  17
  18 --- a/drivers/scsi/libfc/fc_rport.c
  19 +++ b/drivers/scsi/libfc/fc_rport.c
  20 @@ -215,6 +215,7 @@ static void fc_rport_state_enter(struct
  21
  22  static void fc_rport_work(struct work_struct *work)
  23  {
  24 +       u32 port_id;
  25         struct fc_rport_libfc_priv *rdata =
  26                 container_of(work, struct fc_rport_libfc_priv, event_work);
  27         enum fc_rport_event event;
  28 @@ -280,8 +281,12 @@ static void fc_rport_work(struct work_st
  29                         rport_ops->event_callback(lport, rport, event);
  30                 if (trans_state == FC_PORTSTATE_ROGUE)
  31                         put_device(&rport->dev);
  32 -               else
  33 +               else {
  34 +                       port_id = rport->port_id;
  35                         fc_remote_port_delete(rport);
  36 +                       lport->tt.exch_mgr_reset(lport, 0, port_id);
  37 +                       lport->tt.exch_mgr_reset(lport, port_id, 0);
  38 +               }
  39         } else
  40                 mutex_unlock(&rdata->rp_mutex);
  41  }