diff options
Diffstat (limited to 'drivers/scsi/bfa/bfa_callback_priv.h')
-rw-r--r-- | drivers/scsi/bfa/bfa_callback_priv.h | 57 |
1 files changed, 57 insertions, 0 deletions
diff --git a/drivers/scsi/bfa/bfa_callback_priv.h b/drivers/scsi/bfa/bfa_callback_priv.h new file mode 100644 index 0000000..1e3265c --- /dev/null +++ b/drivers/scsi/bfa/bfa_callback_priv.h @@ -0,0 +1,57 @@ +/* + * Copyright (c) 2005-2009 Brocade Communications Systems, Inc. + * All rights reserved + * www.brocade.com + * + * Linux driver for Brocade Fibre Channel Host Bus Adapter. + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License (GPL) Version 2 as + * published by the Free Software Foundation + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * General Public License for more details. + */ + +#ifndef __BFA_CALLBACK_PRIV_H__ +#define __BFA_CALLBACK_PRIV_H__ + +#include <cs/bfa_q.h> + +typedef void (*bfa_cb_cbfn_t) (void *cbarg, bfa_boolean_t complete); + +/** + * Generic BFA callback element. + */ +struct bfa_cb_qe_s { + struct list_head qe; + bfa_cb_cbfn_t cbfn; + bfa_boolean_t once; + u32 rsvd; + void *cbarg; +}; + +#define bfa_cb_queue(__bfa, __hcb_qe, __cbfn, __cbarg) do { \ + (__hcb_qe)->cbfn = (__cbfn); \ + (__hcb_qe)->cbarg = (__cbarg); \ + list_add_tail(&(__hcb_qe)->qe, &(__bfa)->comp_q); \ +} while (0) + +#define bfa_cb_dequeue(__hcb_qe) list_del(&(__hcb_qe)->qe) + +#define bfa_cb_queue_once(__bfa, __hcb_qe, __cbfn, __cbarg) do { \ + (__hcb_qe)->cbfn = (__cbfn); \ + (__hcb_qe)->cbarg = (__cbarg); \ + if (!(__hcb_qe)->once) { \ + list_add_tail((__hcb_qe), &(__bfa)->comp_q); \ + (__hcb_qe)->once = BFA_TRUE; \ + } \ +} while (0) + +#define bfa_cb_queue_done(__hcb_qe) do { \ + (__hcb_qe)->once = BFA_FALSE; \ +} while (0) + +#endif /* __BFA_CALLBACK_PRIV_H__ */ |