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sys/dev/ixl/ixl_pf_qmgr.h
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| /****************************************************************************** | |||||
| 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_ */ | |||||