Re: [PATCH 1/7] RDMA/bnxt_re: Add chip context to identify 57500 series

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On Mon, Dec 31, 2018 at 01:10:01AM -0500, Devesh Sharma wrote:
> Adding setup and destroy routines for chip-context. The
> chip context would be used frequently in control and data
> path to take execution flow depending on the chip type.
> chip context structure pointer is added to the relevant
> data structures.
> 
> Signed-off-by: Selvin Xavier <selvin.xavier@xxxxxxxxxxxx>
> Signed-off-by: Devesh Sharma <devesh.sharma@xxxxxxxxxxxx>
>  drivers/infiniband/hw/bnxt_re/bnxt_re.h    |  1 +
>  drivers/infiniband/hw/bnxt_re/main.c       | 43 ++++++++++++++++++++++++++++++
>  drivers/infiniband/hw/bnxt_re/qplib_fp.h   |  1 +
>  drivers/infiniband/hw/bnxt_re/qplib_rcfw.h |  1 +
>  drivers/infiniband/hw/bnxt_re/qplib_res.h  | 15 ++++++++++-
>  5 files changed, 60 insertions(+), 1 deletion(-)
> 
> diff --git a/drivers/infiniband/hw/bnxt_re/bnxt_re.h b/drivers/infiniband/hw/bnxt_re/bnxt_re.h
> index 31baa893..6c16515 100644
> +++ b/drivers/infiniband/hw/bnxt_re/bnxt_re.h
> @@ -124,6 +124,7 @@ struct bnxt_re_dev {
>  #define BNXT_RE_FLAG_ISSUE_ROCE_STATS          29
>  	struct net_device		*netdev;
>  	unsigned int			version, major, minor;
> +	struct bnxt_qplib_chip_ctx	*chip_ctx;
>  	struct bnxt_en_dev		*en_dev;
>  	struct bnxt_msix_entry		msix_entries[BNXT_RE_MAX_MSIX];
>  	int				num_msix;
> diff --git a/drivers/infiniband/hw/bnxt_re/main.c b/drivers/infiniband/hw/bnxt_re/main.c
> index e7a997f..e3e1944 100644
> +++ b/drivers/infiniband/hw/bnxt_re/main.c
> @@ -80,6 +80,38 @@
>  static struct workqueue_struct *bnxt_re_wq;
>  static void bnxt_re_ib_unreg(struct bnxt_re_dev *rdev);
>  
> +static void bnxt_re_destroy_chip_ctx(struct bnxt_re_dev *rdev)
> +{
> +	struct bnxt_qplib_chip_ctx *chip_ctx;
> +
> +	chip_ctx = rdev->chip_ctx;
> +	rdev->chip_ctx = NULL;
> +	rdev->rcfw.res = NULL;
> +	rdev->qplib_res.cctx = NULL;
> +	kfree(chip_ctx);
> +}
> +
> +static int bnxt_re_setup_chip_ctx(struct bnxt_re_dev *rdev)
> +{
> +	struct bnxt_qplib_chip_ctx *chip_ctx;
> +	struct bnxt_en_dev *en_dev;
> +	struct bnxt *bp;
> +
> +	en_dev = rdev->en_dev;
> +	bp = netdev_priv(en_dev->net);
> +
> +	chip_ctx = kzalloc(sizeof(*chip_ctx), GFP_KERNEL);
> +	if (!chip_ctx)
> +		return -ENOMEM;

It seems a bit weird to kzalloc this? Why not just inline it in the
rdev struct?

Jason




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