diff options
Diffstat (limited to 'sys/dev/ixl/ixl_pf_qmgr.h')
| -rw-r--r-- | sys/dev/ixl/ixl_pf_qmgr.h | 109 |
1 files changed, 109 insertions, 0 deletions
diff --git a/sys/dev/ixl/ixl_pf_qmgr.h b/sys/dev/ixl/ixl_pf_qmgr.h new file mode 100644 index 000000000000..d6ad431bd605 --- /dev/null +++ b/sys/dev/ixl/ixl_pf_qmgr.h @@ -0,0 +1,109 @@ +/****************************************************************************** + + Copyright (c) 2013-2015, Intel Corporation + All rights reserved. + + Redistribution and use in source and binary forms, with or without + modification, are permitted provided that the following conditions are met: + + 1. Redistributions of source code must retain the above copyright notice, + this list of conditions and the following disclaimer. + + 2. 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. + + 3. Neither the name of the Intel Corporation nor the names of its + contributors may be used to endorse or promote products derived from + this software without specific prior written permission. + + THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" + AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE + LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR + CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF + SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS + INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN + CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) + ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE + POSSIBILITY OF SUCH DAMAGE. + +******************************************************************************/ +/*$FreeBSD$*/ + + +#include "ixl_pf.h" + +#ifndef _IXL_PF_QMGR_H_ +#define _IXL_PF_QMGR_H_ + +/* + * Primarily manages the queues that need to be allocated to VSIs. + * + * Cardinality: There should only be one of these in a PF. + * Lifetime: Created and initialized in attach(); destroyed in detach(). + */ + +#define IXL_MAX_SCATTERED_QUEUES 16 +#define IXL_MAX_CONTIGUOUS_QUEUES_XL710 64 +#define IXL_MAX_CONTIGUOUS_QUEUES_X722 128 + +/* Structures */ + +/* Manager */ +struct ixl_pf_qmgr_qinfo { + bool allocated; + bool tx_enabled; + bool rx_enabled; + bool tx_configured; + bool rx_configured; +}; + +struct ixl_pf_qmgr { + u16 num_queues; + struct ixl_pf_qmgr_qinfo *qinfo; +}; + +/* Tag */ +enum ixl_pf_qmgr_qalloc_type { + IXL_PF_QALLOC_CONTIGUOUS, + IXL_PF_QALLOC_SCATTERED +}; + +struct ixl_pf_qtag { + struct ixl_pf_qmgr *qmgr; + enum ixl_pf_qmgr_qalloc_type type; + u16 qidx[IXL_MAX_SCATTERED_QUEUES]; + u16 num_allocated; + u16 num_active; +}; + +/* Public manager functions */ +int ixl_pf_qmgr_init(struct ixl_pf_qmgr *qmgr, u16 num_queues); +void ixl_pf_qmgr_destroy(struct ixl_pf_qmgr *qmgr); + +int ixl_pf_qmgr_get_num_queues(struct ixl_pf_qmgr *qmgr); +int ixl_pf_qmgr_get_first_free(struct ixl_pf_qmgr *qmgr, u16 start); +int ixl_pf_qmgr_get_num_free(struct ixl_pf_qmgr *qmgr); + +/* Allocate queues for a VF VSI */ +int ixl_pf_qmgr_alloc_scattered(struct ixl_pf_qmgr *qmgr, u16 num, struct ixl_pf_qtag *qtag); +/* Allocate queues for the LAN VSIs, or X722 VF VSIs */ +int ixl_pf_qmgr_alloc_contiguous(struct ixl_pf_qmgr *qmgr, u16 num, struct ixl_pf_qtag *qtag); +/* Release a queue allocation */ +int ixl_pf_qmgr_release(struct ixl_pf_qmgr *qmgr, struct ixl_pf_qtag *qtag); + +/* Help manage queues used in VFs */ +/* Typically hardware refers to RX as 0 and TX as 1, so continue that convention here */ +void ixl_pf_qmgr_mark_queue_enabled(struct ixl_pf_qtag *qtag, u16 vsi_qidx, bool tx); +void ixl_pf_qmgr_mark_queue_disabled(struct ixl_pf_qtag *qtag, u16 vsi_qidx, bool tx); +void ixl_pf_qmgr_mark_queue_configured(struct ixl_pf_qtag *qtag, u16 vsi_qidx, bool tx); +bool ixl_pf_qmgr_is_queue_enabled(struct ixl_pf_qtag *qtag, u16 vsi_qidx, bool tx); +bool ixl_pf_qmgr_is_queue_configured(struct ixl_pf_qtag *qtag, u16 vsi_qidx, bool tx); + +/* Public tag functions */ +u16 ixl_pf_qidx_from_vsi_qidx(struct ixl_pf_qtag *qtag, u16 index); + +#endif /* _IXL_PF_QMGR_H_ */ + |