diff options
Diffstat (limited to 'drivers/net/ethernet/chelsio/cxgb4/srq.h')
| -rw-r--r-- | drivers/net/ethernet/chelsio/cxgb4/srq.h | 65 |
1 files changed, 65 insertions, 0 deletions
diff --git a/drivers/net/ethernet/chelsio/cxgb4/srq.h b/drivers/net/ethernet/chelsio/cxgb4/srq.h new file mode 100644 index 000000000..ec85cf938 --- /dev/null +++ b/drivers/net/ethernet/chelsio/cxgb4/srq.h @@ -0,0 +1,65 @@ +/* + * This file is part of the Chelsio T6 Ethernet driver for Linux. + * + * Copyright (c) 2017-2018 Chelsio Communications, Inc. All rights reserved. + * + * This software is available to you under a choice of one of two + * licenses. You may choose to be licensed under the terms of the GNU + * General Public License (GPL) Version 2, available from the file + * COPYING in the main directory of this source tree, or the + * OpenIB.org BSD license below: + * + * Redistribution and use in source and binary forms, with or + * without modification, are permitted provided that the following + * conditions are met: + * + * - Redistributions of source code must retain the above + * copyright notice, this list of conditions and the following + * disclaimer. + * + * - Redistributions in binary form must reproduce the above + * copyright notice, this list of conditions and the following + * disclaimer in the documentation and/or other materials + * provided with the distribution. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, + * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND + * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS + * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN + * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN + * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE + * SOFTWARE. + */ + +#ifndef __CXGB4_SRQ_H +#define __CXGB4_SRQ_H + +struct adapter; +struct cpl_srq_table_rpl; + +#define SRQ_WAIT_TO (HZ * 5) + +struct srq_entry { + u8 valid; + u8 idx; + u8 qlen; + u16 pdid; + u16 cur_msn; + u16 max_msn; + u32 qbase; +}; + +struct srq_data { + unsigned int srq_size; + struct srq_entry *entryp; + struct completion comp; + struct mutex lock; /* generic mutex for srq data */ +}; + +struct srq_data *t4_init_srq(int srq_size); +int cxgb4_get_srq_entry(struct net_device *dev, + int srq_idx, struct srq_entry *entryp); +void do_srq_table_rpl(struct adapter *adap, + const struct cpl_srq_table_rpl *rpl); +#endif /* __CXGB4_SRQ_H */ |