diff options
author | David S. Miller <davem@davemloft.net> | 2009-11-18 22:19:03 -0800 |
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committer | David S. Miller <davem@davemloft.net> | 2009-11-18 22:19:03 -0800 |
commit | 3505d1a9fd65e2d3e00827857b6795d9d8983658 (patch) | |
tree | 941cfafdb57c427bb6b7ebf6354ee93b2a3693b5 /drivers/scsi/bfa/include/cs/bfa_wc.h | |
parent | dfef948ed2ba69cf041840b5e860d6b4e16fa0b1 (diff) | |
parent | 66b00a7c93ec782d118d2c03bd599cfd041e80a1 (diff) |
Merge branch 'master' of master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6
Conflicts:
drivers/net/sfc/sfe4001.c
drivers/net/wireless/libertas/cmd.c
drivers/staging/Kconfig
drivers/staging/Makefile
drivers/staging/rtl8187se/Kconfig
drivers/staging/rtl8192e/Kconfig
Diffstat (limited to 'drivers/scsi/bfa/include/cs/bfa_wc.h')
-rw-r--r-- | drivers/scsi/bfa/include/cs/bfa_wc.h | 68 |
1 files changed, 68 insertions, 0 deletions
diff --git a/drivers/scsi/bfa/include/cs/bfa_wc.h b/drivers/scsi/bfa/include/cs/bfa_wc.h new file mode 100644 index 00000000000..0460bd4fc7c --- /dev/null +++ b/drivers/scsi/bfa/include/cs/bfa_wc.h @@ -0,0 +1,68 @@ +/* + * 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. + */ + +/** + * bfa_wc.h Generic wait counter. + */ + +#ifndef __BFA_WC_H__ +#define __BFA_WC_H__ + +typedef void (*bfa_wc_resume_t) (void *cbarg); + +struct bfa_wc_s { + bfa_wc_resume_t wc_resume; + void *wc_cbarg; + int wc_count; +}; + +static inline void +bfa_wc_up(struct bfa_wc_s *wc) +{ + wc->wc_count++; +} + +static inline void +bfa_wc_down(struct bfa_wc_s *wc) +{ + wc->wc_count--; + if (wc->wc_count == 0) + wc->wc_resume(wc->wc_cbarg); +} + +/** + * Initialize a waiting counter. + */ +static inline void +bfa_wc_init(struct bfa_wc_s *wc, bfa_wc_resume_t wc_resume, void *wc_cbarg) +{ + wc->wc_resume = wc_resume; + wc->wc_cbarg = wc_cbarg; + wc->wc_count = 0; + bfa_wc_up(wc); +} + +/** + * Wait for counter to reach zero + */ +static inline void +bfa_wc_wait(struct bfa_wc_s *wc) +{ + bfa_wc_down(wc); +} + +#endif |