On Sat, Apr 23, 2016 at 06:26:47PM +0800, Lijun Ou wrote:
> This patch mainly setup hca for RoCE. it will do a series of
> initial works as follows:
> 1. init uar table, allocate uar resource
> 2. init pd table
> 3. init cq table
> 4. init mr table
> 5. init qp table
>
> Signed-off-by: Lijun Ou <ouli...@huawei.com>
> Signed-off-by: Wei Hu(Xavier) <xavier.hu...@huawei.com>
> ---
> drivers/infiniband/hw/hns/hns_roce_alloc.c | 104 ++++++++++++++++
> drivers/infiniband/hw/hns/hns_roce_cq.c | 25 ++++
> drivers/infiniband/hw/hns/hns_roce_device.h | 69 ++++++++++
> drivers/infiniband/hw/hns/hns_roce_eq.c | 1 -
> drivers/infiniband/hw/hns/hns_roce_icm.c | 88 +++++++++++++
> drivers/infiniband/hw/hns/hns_roce_icm.h | 9 ++
> drivers/infiniband/hw/hns/hns_roce_main.c | 79 ++++++++++++
> drivers/infiniband/hw/hns/hns_roce_mr.c | 187
> ++++++++++++++++++++++++++++
> drivers/infiniband/hw/hns/hns_roce_pd.c | 65 ++++++++++
> drivers/infiniband/hw/hns/hns_roce_qp.c | 30 +++++
> 10 files changed, 656 insertions(+), 1 deletion(-)
> create mode 100644 drivers/infiniband/hw/hns/hns_roce_alloc.c
> create mode 100644 drivers/infiniband/hw/hns/hns_roce_mr.c
> create mode 100644 drivers/infiniband/hw/hns/hns_roce_pd.c
>
> diff --git a/drivers/infiniband/hw/hns/hns_roce_alloc.c
> b/drivers/infiniband/hw/hns/hns_roce_alloc.c
> new file mode 100644
> index 0000000..0c76f1b
> --- /dev/null
> +++ b/drivers/infiniband/hw/hns/hns_roce_alloc.c
> @@ -0,0 +1,104 @@
> +/*
> + * Copyright (c) 2016 Hisilicon Limited.
> + *
> + * This program is free software; you can redistribute it and/or modify
> + * it under the terms of the GNU General Public License as published by
> + * the Free Software Foundation; either version 2 of the License, or
> + * (at your option) any later version.
> + */
> +
> +#include <linux/bitmap.h>
> +#include <linux/dma-mapping.h>
> +#include <linux/errno.h>
> +#include <linux/mm.h>
> +#include <linux/slab.h>
> +#include <linux/vmalloc.h>
> +#include "hns_roce_device.h"
> +
> +int hns_roce_bitmap_alloc(struct hns_roce_bitmap *bitmap, u32 *obj)
> +{
> + int ret = 0;
> +
> + spin_lock(&bitmap->lock);
> + *obj = find_next_zero_bit(bitmap->table, bitmap->max, bitmap->last);
> + if (*obj >= bitmap->max) {
> + bitmap->top = (bitmap->top + bitmap->max + bitmap->reserved_top)
> + & bitmap->mask;
> + *obj = find_first_zero_bit(bitmap->table, bitmap->max);find_first_zero_bit function returns "unsigned long" which may or may not be equal to u32 on some architectures.
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