> -----Original Message-----
> From: Laurentiu Tudor
> Sent: Friday, December 02, 2016 6:19 AM
> To: Stuart Yoder <stuart.yo...@nxp.com>; gre...@linuxfoundation.org
> Cc: de...@driverdev.osuosl.org; linux-ker...@vger.kernel.org; ag...@suse.de;
> a...@arndb.de; Leo Li
> <leoyang...@nxp.com>; Ioana Ciornei <ioana.cior...@nxp.com>; Catalin Horghidan
> <catalin.horghi...@nxp.com>; Ruxandra Ioana Radulescu
> <ruxandra.radule...@nxp.com>; Roy Pledge
> <roy.ple...@nxp.com>
> Subject: Re: [PATCH v3 5/9] bus: fsl-mc: dpio: add global dpaa2 definitions
>
> On 12/02/2016 12:41 AM, Stuart Yoder wrote:
> > From: Roy Pledge <roy.ple...@nxp.com>
> >
> > Create header for global dpaa2 definitions. Add definitions
> > for dequeue results.
> >
> > Signed-off-by: Roy Pledge <roy.ple...@nxp.com>
> > Signed-off-by: Stuart Yoder <stuart.yo...@nxp.com>
> > ---
> > include/linux/fsl/dpaa2-global.h | 203
> > +++++++++++++++++++++++++++++++++++++++
> > 1 file changed, 203 insertions(+)
> > create mode 100644 include/linux/fsl/dpaa2-global.h
> >
> > diff --git a/include/linux/fsl/dpaa2-global.h
> > b/include/linux/fsl/dpaa2-global.h
> > new file mode 100644
> > index 0000000..3ee3f29
> > --- /dev/null
> > +++ b/include/linux/fsl/dpaa2-global.h
> > @@ -0,0 +1,203 @@
> > +/*
> > + * Copyright 2014-2016 Freescale Semiconductor Inc.
> > + *
> > + * 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.
> > + * * Neither the name of Freescale Semiconductor nor the
> > + * names of its contributors may be used to endorse or promote
> > products
> > + * derived from this software without specific prior written
> > permission.
> > + *
> > + * ALTERNATIVELY, this software may be distributed under the terms of the
> > + * GNU General Public License ("GPL") as published by the Free Software
> > + * Foundation, either version 2 of that License or (at your option) any
> > + * later version.
> > + *
> > + * THIS SOFTWARE IS PROVIDED BY Freescale Semiconductor ``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 Freescale Semiconductor 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.
> > + */
> > +#ifndef __FSL_DPAA2_GLOBAL_H
> > +#define __FSL_DPAA2_GLOBAL_H
> > +
> > +#include <linux/types.h>
> > +#include <linux/cpumask.h>
> > +#include <linux/fsl/dpaa2-fd.h>
> > +
> > +struct dpaa2_dq {
> > + union {
> > + struct common {
> > + u8 verb;
> > + u8 reserved[63];
> > + } common;
> > + struct dq {
> > + u8 verb;
> > + u8 stat;
> > + __le16 seqnum;
> > + __le16 oprid;
> > + u8 reserved;
> > + u8 tok;
> > + __le32 fqid;
> > + u32 reserved2;
> > + __le32 fq_byte_cnt;
> > + __le32 fq_frm_cnt;
> > + __le64 fqd_ctx;
> > + u8 fd[32];
> > + } dq;
> > + struct scn {
> > + u8 verb;
> > + u8 stat;
> > + u8 state;
> > + u8 reserved;
> > + __le32 rid_tok;
> > + __le64 ctx;
> > + } scn;
> > + };
> > +};
> > +
> > +
>
> Extra blank line.
>
> > +/* Parsing frame dequeue results */
> > +/* FQ empty */
> > +#define DPAA2_DQ_STAT_FQEMPTY 0x80
> > +/* FQ held active */
> > +#define DPAA2_DQ_STAT_HELDACTIVE 0x40
> > +/* FQ force eligible */
> > +#define DPAA2_DQ_STAT_FORCEELIGIBLE 0x20
> > +/* valid frame */
> > +#define DPAA2_DQ_STAT_VALIDFRAME 0x10
> > +/* FQ ODP enable */
> > +#define DPAA2_DQ_STAT_ODPVALID 0x04
> > +/* volatile dequeue */
> > +#define DPAA2_DQ_STAT_VOLATILE 0x02
> > +/* volatile dequeue command is expired */
> > +#define DPAA2_DQ_STAT_EXPIRED 0x01
> > +
> > +#define DQ_FQID_MASK 0x00FFFFFF
> > +#define DQ_FRAME_COUNT_MASK 0x00FFFFFF
>
> We should have these 2 macro values aligned too.
>
> > +/**
> > + * dpaa2_dq_flags() - Get the stat field of dequeue response
> > + * @dq: the dequeue result.
> > + */
> > +static inline u32 dpaa2_dq_flags(const struct dpaa2_dq *dq)
> > +{
> > + return dq->dq.stat;
> > +}
> > +
> > +/**
> > + * dpaa2_dq_is_pull() - Check whether the dq response is from a pull
> > + * command.
> > + * @dq: the dequeue result
> > + *
> > + * Return 1 for volatile(pull) dequeue, 0 for static dequeue.
> > + */
> > +static inline int dpaa2_dq_is_pull(const struct dpaa2_dq *dq)
> > +{
> > + return (int)(dpaa2_dq_flags(dq) & DPAA2_DQ_STAT_VOLATILE);
> > +}
> > +
> > +/**
> > + * dpaa2_dq_is_pull_complete() - Check whether the pull command is
> > completed.
> > + * @dq: the dequeue result
> > + *
> > + * Return boolean.
>
> Why not use bool for the return type then?
>
> > + */
> > +static inline int dpaa2_dq_is_pull_complete(
> > + const struct dpaa2_dq *dq)
> > +{
> > + return (int)(dpaa2_dq_flags(dq) & DPAA2_DQ_STAT_EXPIRED);
> > +}
> > +
> > +/**
> > + * dpaa2_dq_seqnum() - Get the seqnum field in dequeue response
> > + * @dq: the dequeue result
> > + *
> > + * seqnum is valid only if VALIDFRAME flag is TRUE
> > + *
> > + * Return seqnum.
> > + */
> > +static inline u16 dpaa2_dq_seqnum(const struct dpaa2_dq *dq)
> > +{
> > + return le16_to_cpu(dq->dq.seqnum);
> > +}
> > +
> > +/**
> > + * dpaa2_dq_odpid() - Get the odpid field in dequeue response
> > + * @dq: the dequeue result
> > + *
> > + * odpid is valid only if ODPVAILD flag is TRUE.
>
> s/ODPVAILD/ODPVALID/
Agree with your suggestions, will update.
Stuart
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