redonkable/alistair23-linux
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[SCSI] bfa: Fix to defer vport delete handler invocation till firmware logo response.

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Made changes to avoid queuing the vport delete work to IM driver
work queue in the bfa_fcb_lport_delete() - since at this stage we
are not completely done with using the vport structure as we are
still waiting for the LOGO response from the fw in online state or
just doing some cleanup. Since queuing up the vport delete work at
this stage will result in the FC transport layer to clean up the vport
before we get the response from firmware.
Made changes to queue the port delete work to the IM driver work queue -
from the bfa_fcs_vport_free() function since at this state we are done
with using the vport data structure and the FCS state machine is completely
cleaned up.

Signed-off-by: Krishna Gudipati <kgudipat@brocade.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
This commit is contained in:
Krishna Gudipati 2012-04-09 18:40:01 -07:00 committed by James Bottomley
parent 42e22cac4e
commit 17c201b328
4 changed files with 17 additions and 34 deletions
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3
drivers/scsi/bfa/bfa_fcs.h
View file

@ -799,9 +799,6 @@ struct bfad_port_s *bfa_fcb_lport_new(struct bfad_s *bfad,
enum bfa_lport_role roles,
struct bfad_vf_s *vf_drv,
struct bfad_vport_s *vp_drv);
void bfa_fcb_lport_delete(struct bfad_s *bfad, enum bfa_lport_role roles,
struct bfad_vf_s *vf_drv,
struct bfad_vport_s *vp_drv);
/*
* vport callbacks

30
drivers/scsi/bfa/bfa_fcs_lport.c
View file

@ -709,14 +709,10 @@ bfa_fcs_lport_deleted(struct bfa_fcs_lport_s *port)
bfa_fcs_lport_aen_post(port, BFA_LPORT_AEN_DELETE);
/* Base port will be deleted by the OS driver */
if (port->vport) {
bfa_fcb_lport_delete(port->fcs->bfad, port->port_cfg.roles,
port->fabric->vf_drv,
port->vport ? port->vport->vport_drv : NULL);
if (port->vport)
bfa_fcs_vport_delete_comp(port->vport);
} else {
else
bfa_wc_down(&port->fabric->wc);
}
}
@ -5714,17 +5710,23 @@ bfa_fcs_vport_free(struct bfa_fcs_vport_s *vport)
(struct bfad_vport_s *)vport->vport_drv;
bfa_fcs_fabric_delvport(__vport_fabric(vport), vport);
if (vport_drv->comp_del)
complete(vport_drv->comp_del);
else
kfree(vport_drv);
bfa_lps_delete(vport->lps);
if (vport_drv->comp_del) {
complete(vport_drv->comp_del);
return;
}
/*
* We queue the vport delete work to the IM work_q from here.
* The memory for the bfad_vport_s is freed from the FC function
* template vport_delete entry point.
*/
if (vport_drv)
bfad_im_port_delete(vport_drv->drv_port.bfad,
&vport_drv->drv_port);
}
/*
* fcs_vport_public FCS virtual port public interfaces
*/

17
drivers/scsi/bfa/bfad.c
View file

@ -456,23 +456,6 @@ bfa_fcb_lport_new(struct bfad_s *bfad, struct bfa_fcs_lport_s *port,
return port_drv;
}
void
bfa_fcb_lport_delete(struct bfad_s *bfad, enum bfa_lport_role roles,
struct bfad_vf_s *vf_drv, struct bfad_vport_s *vp_drv)
{
struct bfad_port_s *port_drv;
/* this will be only called from rmmod context */
if (vp_drv && !vp_drv->comp_del) {
port_drv = (vp_drv) ? (&(vp_drv)->drv_port) :
((vf_drv) ? (&(vf_drv)->base_port) :
(&(bfad)->pport));
bfa_trc(bfad, roles);
if (roles & BFA_LPORT_ROLE_FCP_IM)
bfad_im_port_delete(bfad, port_drv);
}
}
/*
* FCS RPORT alloc callback, after successful PLOGI by FCS
*/

1
drivers/scsi/bfa/bfad_attr.c
View file

@ -497,6 +497,7 @@ bfad_im_vport_delete(struct fc_vport *fc_vport)
if (im_port->flags & BFAD_PORT_DELETE) {
bfad_scsi_host_free(bfad, im_port);
list_del(&vport->list_entry);
kfree(vport);
return 0;
}