From 8b230ed8ec96c933047dd0625cf95f739e4939a6 Mon Sep 17 00:00:00 2001 From: Rasesh Mody Date: Mon, 23 Aug 2010 20:24:12 -0700 Subject: bna: Brocade 10Gb Ethernet device driver This is patch 1/6 which contains linux driver source for Brocade's BR1010/BR1020 10Gb CEE capable ethernet adapter. Signed-off-by: Debashis Dutt Signed-off-by: Rasesh Mody Signed-off-by: David S. Miller --- drivers/net/bna/bfa_wc.h | 69 ++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 69 insertions(+) create mode 100644 drivers/net/bna/bfa_wc.h (limited to 'drivers/net/bna/bfa_wc.h') diff --git a/drivers/net/bna/bfa_wc.h b/drivers/net/bna/bfa_wc.h new file mode 100644 index 000000000000..d0e4caee67b0 --- /dev/null +++ b/drivers/net/bna/bfa_wc.h @@ -0,0 +1,69 @@ +/* + * Linux network driver for Brocade Converged Network 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. + */ +/* + * Copyright (c) 2005-2010 Brocade Communications Systems, Inc. + * All rights reserved + * www.brocade.com + */ + +/** + * @file 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 { + bfa_wc_resume_t wc_resume; + void *wc_cbarg; + int wc_count; +}; + +static inline void +bfa_wc_up(struct bfa_wc *wc) +{ + wc->wc_count++; +} + +static inline void +bfa_wc_down(struct bfa_wc *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 *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 *wc) +{ + bfa_wc_down(wc); +} + +#endif -- cgit v1.2.3-55-g7522