From: Leon Romanovsky <leon@kernel.org>
To: Lijun Ou <oulijun@huawei.com>
Cc: dledford@redhat.com, sean.hefty@intel.com,
hal.rosenstock@gmail.com, davem@davemloft.net,
jeffrey.t.kirsher@intel.com, jiri@mellanox.com,
ogerlitz@mellanox.com, linux-rdma@vger.kernel.org,
linux-kernel@vger.kernel.org, netdev@vger.kernel.org,
gongyangming@huawei.com, xiaokun@huawei.com,
tangchaofei@huawei.com, haifeng.wei@huawei.com,
yisen.zhuang@huawei.com, yankejian@huawei.com,
charles.chenxin@huawei.com, linuxarm@huawei.com
Subject: Re: [PATCH v10 08/22] IB/hns: Add icm support
Date: Fri, 17 Jun 2016 12:58:34 +0300 [thread overview]
Message-ID: <20160617095834.GA5408@leon.nu> (raw)
In-Reply-To: <1466087730-54856-9-git-send-email-oulijun@huawei.com>
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On Thu, Jun 16, 2016 at 10:35:16PM +0800, Lijun Ou wrote:
> This patch mainly added icm support for RoCE. It initializes icm
> which managers the relative memory blocks for RoCE. The data
> structures of RoCE will be located in it. For example, CQ table,
> QP table and MTPT table so on.
>
> Signed-off-by: Wei Hu <xavier.huwei@huawei.com>
> Signed-off-by: Nenglong Zhao <zhaonenglong@hisilicon.com>
> Signed-off-by: Lijun Ou <oulijun@huawei.com>
> ---
<...>
> +
> +static int hns_roce_alloc_icm_pages(struct scatterlist *mem, int order,
> + gfp_t gfp_mask)
> +{
> + struct page *page;
> +
> + page = alloc_pages(gfp_mask, order);
> + if (!page)
> + return -ENOMEM;
> +
> + sg_set_page(mem, page, PAGE_SIZE << order, 0);
> +
> + return 0;
> +}
> +
> +static int hns_roce_alloc_icm_coherent(struct device *dev,
> + struct scatterlist *mem, int order,
> + gfp_t gfp_mask)
> +{
> + void *buf = dma_alloc_coherent(dev, PAGE_SIZE << order,
> + &sg_dma_address(mem), gfp_mask);
> + if (!buf)
> + return -ENOMEM;
> +
> + sg_set_buf(mem, buf, PAGE_SIZE << order);
> + WARN_ON(mem->offset);
> + sg_dma_len(mem) = PAGE_SIZE << order;
> + return 0;
> +}
> +
<...>
> +
> +static void hns_roce_free_icm_pages(struct hns_roce_dev *hr_dev,
> + struct hns_roce_icm_chunk *chunk)
> +{
> + int i;
> +
> + if (chunk->nsg > 0)
> + dma_unmap_sg(&hr_dev->pdev->dev, chunk->mem, chunk->npages,
> + DMA_BIDIRECTIONAL);
> +
> + for (i = 0; i < chunk->npages; ++i)
> + __free_pages(sg_page(&chunk->mem[i]),
> + get_order(chunk->mem[i].length));
You used alloc_pages for this allocation, so why are you using
__free_pages instead of free_pages?
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next prev parent reply other threads:[~2016-06-17 9:58 UTC|newest]
Thread overview: 56+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-06-16 14:35 [PATCH v10 00/22] Add HiSilicon RoCE driver Lijun Ou
2016-06-16 14:35 ` [PATCH v10 01/22] net: hns: Add reset function support for " Lijun Ou
2016-06-24 11:49 ` Leon Romanovsky
2016-06-27 6:41 ` oulijun
2016-06-16 14:35 ` [PATCH v10 02/22] devicetree: bindings: IB: Add binding document for HiSilicon RoCE Lijun Ou
2016-06-16 14:35 ` [PATCH v10 03/22] IB/hns: Add initial main frame driver and get cfg info Lijun Ou
2016-06-24 11:48 ` Leon Romanovsky
[not found] ` <576E5D0B.7010003@huawei.com>
2016-06-27 7:00 ` Leon Romanovsky
2016-06-27 7:29 ` Wei Hu (Xavier)
2016-06-16 14:35 ` [PATCH v10 04/22] IB/hns: Add RoCE engine reset function Lijun Ou
2016-06-24 14:59 ` Leon Romanovsky
[not found] ` <576E5C21.5030904@huawei.com>
2016-06-27 8:01 ` Leon Romanovsky
2016-06-27 8:31 ` oulijun
2016-06-28 6:31 ` Wei Hu (Xavier)
2016-06-28 8:09 ` Leon Romanovsky
2016-06-16 14:35 ` [PATCH v10 05/22] IB/hns: Add initial profile resource Lijun Ou
2016-06-24 15:10 ` Leon Romanovsky
2016-06-28 6:56 ` oulijun
2016-06-16 14:35 ` [PATCH v10 06/22] IB/hns: Add initial cmd operation Lijun Ou
2016-06-20 13:33 ` Leon Romanovsky
2016-06-21 10:50 ` Wei Hu (Xavier)
2016-06-21 11:28 ` Leon Romanovsky
2016-06-21 13:01 ` Wei Hu (Xavier)
2016-06-22 4:54 ` Leon Romanovsky
2016-06-22 6:50 ` Wei Hu (Xavier)
2016-06-16 14:35 ` [PATCH v10 07/22] IB/hns: Add event queue support Lijun Ou
2016-06-24 15:46 ` Leon Romanovsky
2016-06-24 15:56 ` Doug Ledford
2016-06-29 8:53 ` oulijun
2016-06-29 10:41 ` Leon Romanovsky
2016-06-16 14:35 ` [PATCH v10 08/22] IB/hns: Add icm support Lijun Ou
2016-06-17 9:58 ` Leon Romanovsky [this message]
[not found] ` <57677314.70909@huawei.com>
2016-06-20 6:06 ` Leon Romanovsky
2016-06-20 7:49 ` Wei Hu (Xavier)
2016-06-20 9:27 ` Leon Romanovsky
2016-06-20 9:48 ` Wei Hu (Xavier)
2016-06-20 13:04 ` Leon Romanovsky
2016-06-21 4:37 ` Wei Hu (Xavier)
2016-06-21 11:55 ` Leon Romanovsky
2016-06-22 3:53 ` Wei Hu (Xavier)
2016-06-16 14:35 ` [PATCH v10 09/22] IB/hns: Add hca support Lijun Ou
2016-06-24 15:50 ` Leon Romanovsky
2016-06-16 14:35 ` [PATCH v10 10/22] IB/hns: Add process flow to init RoCE engine Lijun Ou
2016-06-16 14:35 ` [PATCH v10 11/22] IB/hns: Add IB device registration Lijun Ou
2016-06-16 14:35 ` [PATCH v10 12/22] IB/hns: Set mtu and gid support Lijun Ou
2016-06-16 14:35 ` [PATCH v10 13/22] IB/hns: Add interface of the protocol stack registration Lijun Ou
2016-06-16 14:35 ` [PATCH v10 14/22] IB/hns: Add operations support for IB device and port Lijun Ou
2016-06-16 14:35 ` [PATCH v10 15/22] IB/hns: Add PD operations support Lijun Ou
2016-06-16 14:35 ` [PATCH v10 16/22] IB/hns: Add ah " Lijun Ou
2016-06-16 14:35 ` [PATCH v10 17/22] IB/hns: Add QP " Lijun Ou
2016-06-16 14:35 ` [PATCH v10 18/22] IB/hns: Add CQ " Lijun Ou
2016-06-16 14:35 ` [PATCH v10 19/22] IB/hns: Add memory region " Lijun Ou
2016-06-16 14:35 ` [PATCH v10 20/22] IB/hns: Add operation for getting immutable port Lijun Ou
2016-06-16 14:35 ` [PATCH v10 21/22] IB/hns: Kconfig and Makefile for RoCE module Lijun Ou
2016-06-16 14:35 ` [PATCH v10 22/22] MAINTAINERS: Add maintainers for HiSilicon RoCE driver Lijun Ou
2016-06-24 15:55 ` [PATCH v10 00/22] Add " Leon Romanovsky
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