netdev - Re: [PATCH iproute2 V1 3/6] rdma: Add device capability parsing

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Date:   Wed, 28 Jun 2017 07:16:48 +0300
From:   Leon Romanovsky <leon@...nel.org>
To:     Stephen Hemminger <stephen@...workplumber.org>
Cc:     Doug Ledford <dledford@...hat.com>,
        Ariel Almog <ariela@...lanox.com>,
        Dennis Dalessandro <dennis.dalessandro@...el.com>,
        Jason Gunthorpe <jgunthorpe@...idianresearch.com>,
        Linux RDMA <linux-rdma@...r.kernel.org>,
        Linux Netdev <netdev@...r.kernel.org>
Subject: Re: [PATCH iproute2 V1 3/6] rdma: Add device capability parsing

On Tue, Jun 27, 2017 at 04:04:49PM -0700, Stephen Hemminger wrote:
> On Tue, 27 Jun 2017 17:39:17 +0300
> Leon Romanovsky <leon@...nel.org> wrote:
>
> > +static const char *dev_caps[64] = {
> > +	"RESIZE_MAX_WR",
> > +	"BAD_PKEY_CNTR",
> > +	"BAD_QKEY_CNTR",
> > +	"RAW_MULTI",
> > +	"AUTO_PATH_MIG",
> > +	"CHANGE_PHY_PORT",
> > +	"UD_AV_PORT_ENFORCE",
> > +	"CURR_QP_STATE_MOD",
> > +	"SHUTDOWN_PORT",
> > +	"INIT_TYPE",
> > +	"PORT_ACTIVE_EVENT",
> > +	"SYS_IMAGE_GUID",
> > +	"RC_RNR_NAK_GEN",
> > +	"SRQ_RESIZE",
> > +	"N_NOTIFY_CQ",
> > +	"LOCAL_DMA_LKEY",
> > +	"RESERVED",
> > +	"MEM_WINDOW",
> > +	"UD_IP_CSUM",
> > +	"UD_TSO",
> > +	"XRC",
> > +	"MEM_MGT_EXTENSIONS",
> > +	"BLOCK_MULTICAST_LOOPBACK",
> > +	"MEM_WINDOW_TYPE_2A",
> > +	"MEM_WINDOW_TYPE_2B",
> > +	"RC_IP_CSUM",
> > +	"RAW_IP_CSUM",
> > +	"CROSS_CHANNEL",
> > +	"MANAGED_FLOW_STEERING",
> > +	"SIGNATURE_HANDOVER",
> > +	"ON_DEMAND_PAGING",
> > +	"SG_GAPS_REG",
> > +	"VIRTUAL_FUNCTION",
> > +	"RAW_SCATTER_FCS",
> > +	"RDMA_NETDEV_OPA_VNIC",
> > +};
>
> Please use array initializer so that header and capabilities don't get different values.
> Are the bit values in some rdma header file?

It is enum ib_device_cap_flags copied from include/rdma/ib_verbs.h.
These enum ib_device_cap_flags and enum ib_port_cap_flags are not exposed
to the user (include/uapi/rdma/*) and I'm planning to move them there in
next cycle.

Thanks

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