netdev - Re: [PATCH v5 02/16] IB/pvrdma: Add user-level shared functions

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Date:   Sun, 25 Sep 2016 15:29:36 +0300
From:   Leon Romanovsky <leon@...nel.org>
To:     Adit Ranadive <aditr@...are.com>
Cc:     dledford@...hat.com, linux-rdma@...r.kernel.org,
        pv-drivers@...are.com, netdev@...r.kernel.org,
        linux-pci@...r.kernel.org, jhansen@...are.com, asarwade@...are.com,
        georgezhang@...are.com, bryantan@...are.com
Subject: Re: [PATCH v5 02/16] IB/pvrdma: Add user-level shared functions

On Sun, Sep 25, 2016 at 10:26:24AM +0300, Leon Romanovsky wrote:

<...>

> > +
> > +/* PVRDMA send queue work request */
> > +struct pvrdma_sq_wqe_hdr {
> > +	__u64 wr_id;		/* wr id */
> > +	__u32 num_sge;		/* size of s/g array */
> > +	__u32 total_len;	/* reserved */
> > +	__u32 opcode;		/* operation type */
> > +	__u32 send_flags;	/* wr flags */
> > +	union {
> > +		__u32 imm_data;
> > +		__u32 invalidate_rkey;
> > +	} ex;
> > +	__u32 reserved;
> > +	union {
> > +		struct {
> > +			__u64 remote_addr;
> > +			__u32 rkey;
> > +			__u8 reserved[4];
> > +		} rdma;
> > +		struct {
> > +			__u64 remote_addr;
> > +			__u64 compare_add;
> > +			__u64 swap;
> > +			__u32 rkey;
> > +			__u32 reserved;
> > +		} atomic;
> > +		struct {
> > +			__u64 remote_addr;
> > +			__u32 log_arg_sz;
> > +			__u32 rkey;
> > +			union {
> > +				struct pvrdma_exp_cmp_swap  cmp_swap;
> > +				struct pvrdma_exp_fetch_add fetch_add;
> > +			} wr_data;
> > +		} masked_atomics;
> > +		struct {
> > +			__u64 iova_start;
> > +			__u64 pl_pdir_dma;
> > +			__u32 page_shift;
> > +			__u32 page_list_len;
> > +			__u32 length;
> > +			__u32 access_flags;
> > +			__u32 rkey;
> > +		} fast_reg;
> > +		struct {
> > +			__u32 remote_qpn;
> > +			__u32 remote_qkey;
> > +			struct pvrdma_av av;
> > +		} ud;
> > +	} wr;
> > +};
>
> No, I have half-baked patch series which refactors this structure in kernel.

Sorry, this patch series is not needed in kernel.

> There is no need to put this structure in UAPI.

This is still relevant.

Thanks

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