4294f337b0
Submitted by: erj Reviewed by: jeffrey.e.pieper@intel.com MFC after: 3 days Sponsored by: Intel Corporation Differential Revision: https://reviews.freebsd.org/D7391
110 lines
4.0 KiB
C
110 lines
4.0 KiB
C
/******************************************************************************
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Copyright (c) 2013-2015, Intel Corporation
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All rights reserved.
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Redistribution and use in source and binary forms, with or without
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modification, are permitted provided that the following conditions are met:
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1. Redistributions of source code must retain the above copyright notice,
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this list of conditions and the following disclaimer.
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2. Redistributions in binary form must reproduce the above copyright
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notice, this list of conditions and the following disclaimer in the
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documentation and/or other materials provided with the distribution.
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3. Neither the name of the Intel Corporation nor the names of its
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contributors may be used to endorse or promote products derived from
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this software without specific prior written permission.
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THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
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LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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POSSIBILITY OF SUCH DAMAGE.
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******************************************************************************/
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/*$FreeBSD$*/
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#include "ixl_pf.h"
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#ifndef _IXL_PF_QMGR_H_
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#define _IXL_PF_QMGR_H_
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/*
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* Primarily manages the queues that need to be allocated to VSIs.
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*
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* Cardinality: There should only be one of these in a PF.
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* Lifetime: Created and initialized in attach(); destroyed in detach().
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*/
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#define IXL_MAX_SCATTERED_QUEUES 16
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#define IXL_MAX_CONTIGUOUS_QUEUES_XL710 64
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#define IXL_MAX_CONTIGUOUS_QUEUES_X722 128
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/* Structures */
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/* Manager */
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struct ixl_pf_qmgr_qinfo {
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bool allocated;
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bool tx_enabled;
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bool rx_enabled;
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bool tx_configured;
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bool rx_configured;
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};
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struct ixl_pf_qmgr {
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u16 num_queues;
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struct ixl_pf_qmgr_qinfo *qinfo;
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};
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/* Tag */
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enum ixl_pf_qmgr_qalloc_type {
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IXL_PF_QALLOC_CONTIGUOUS,
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IXL_PF_QALLOC_SCATTERED
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};
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struct ixl_pf_qtag {
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struct ixl_pf_qmgr *qmgr;
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enum ixl_pf_qmgr_qalloc_type type;
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u16 qidx[IXL_MAX_SCATTERED_QUEUES];
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u16 num_allocated;
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u16 num_active;
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};
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/* Public manager functions */
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int ixl_pf_qmgr_init(struct ixl_pf_qmgr *qmgr, u16 num_queues);
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void ixl_pf_qmgr_destroy(struct ixl_pf_qmgr *qmgr);
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int ixl_pf_qmgr_get_num_queues(struct ixl_pf_qmgr *qmgr);
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int ixl_pf_qmgr_get_first_free(struct ixl_pf_qmgr *qmgr, u16 start);
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int ixl_pf_qmgr_get_num_free(struct ixl_pf_qmgr *qmgr);
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/* Allocate queues for a VF VSI */
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int ixl_pf_qmgr_alloc_scattered(struct ixl_pf_qmgr *qmgr, u16 num, struct ixl_pf_qtag *qtag);
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/* Allocate queues for the LAN VSIs, or X722 VF VSIs */
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int ixl_pf_qmgr_alloc_contiguous(struct ixl_pf_qmgr *qmgr, u16 num, struct ixl_pf_qtag *qtag);
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/* Release a queue allocation */
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int ixl_pf_qmgr_release(struct ixl_pf_qmgr *qmgr, struct ixl_pf_qtag *qtag);
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/* Help manage queues used in VFs */
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/* Typically hardware refers to RX as 0 and TX as 1, so continue that convention here */
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void ixl_pf_qmgr_mark_queue_enabled(struct ixl_pf_qtag *qtag, u16 vsi_qidx, bool tx);
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void ixl_pf_qmgr_mark_queue_disabled(struct ixl_pf_qtag *qtag, u16 vsi_qidx, bool tx);
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void ixl_pf_qmgr_mark_queue_configured(struct ixl_pf_qtag *qtag, u16 vsi_qidx, bool tx);
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bool ixl_pf_qmgr_is_queue_enabled(struct ixl_pf_qtag *qtag, u16 vsi_qidx, bool tx);
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bool ixl_pf_qmgr_is_queue_configured(struct ixl_pf_qtag *qtag, u16 vsi_qidx, bool tx);
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/* Public tag functions */
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u16 ixl_pf_qidx_from_vsi_qidx(struct ixl_pf_qtag *qtag, u16 index);
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#endif /* _IXL_PF_QMGR_H_ */
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