Re: [PATCH 2/3] net: hns: add Hisilicon RoCE support

Leon Romanovsky
2016-03-12T10:55:20Z

On Fri, Mar 11, 2016 at 06:37:10PM +0800, Lijun Ou wrote:
> It added hns_dsaf_roce_reset routine for roce driver.
> RoCE is a feature of hns.
> In hip06 SOC, in roce reset process, it's needed to configure
> dsaf channel reset,port and sl map info.
>
> Signed-off-by: Lijun Ou <oulijun@huawei.com>
> Signed-off-by: Wei Hu(Xavier) <xavier.huwei@huawei.com>
> Signed-off-by: Lisheng <lisheng011@huawei.com>
> ---
> drivers/net/ethernet/hisilicon/hns/hns_dsaf_main.c | 84 ++++++++++++++++++++++
> drivers/net/ethernet/hisilicon/hns/hns_dsaf_main.h | 14 ++++
> drivers/net/ethernet/hisilicon/hns/hns_dsaf_misc.c | 62 +++++++++++++---
> drivers/net/ethernet/hisilicon/hns/hns_dsaf_reg.h | 13 ++++
> 4 files changed, 163 insertions(+), 10 deletions(-)
>
> diff --git a/drivers/net/ethernet/hisilicon/hns/hns_dsaf_main.c b/drivers/net/ethernet/hisilicon/hns/hns_dsaf_main.c
> index 38fc5be..a0f0d4f 100644
> --- a/drivers/net/ethernet/hisilicon/hns/hns_dsaf_main.c
> +++ b/drivers/net/ethernet/hisilicon/hns/hns_dsaf_main.c
> @@ -12,6 +12,7 @@
> #include <linux/init.h>
> #include <linux/interrupt.h>
> #include <linux/netdevice.h>
> +#include <linux/of_platform.h>
> #include <linux/platform_device.h>
> #include <linux/of.h>
> #include <linux/of_address.h>
> @@ -2593,6 +2594,89 @@ static struct platform_driver g_dsaf_driver = {
>
> module_platform_driver(g_dsaf_driver);
>
> +/**
> + * hns_dsaf_roce_reset - reset dsaf and roce
> + * @dsaf_fwnode: Pointer to framework node for the dasf
> + * @val: 0 - request reset , 1 - drop reset
> + * retuen 0 - success , negative --fail
> + */
> +int hns_dsaf_roce_reset(struct fwnode_handle *dsaf_fwnode, u32 val)
> +{
> + struct dsaf_device *dsaf_dev;
> + struct platform_device *pdev;
> + unsigned int mp;
> + unsigned int sl;
> + unsigned int credit;
> + int i;
> + const u32 port_map[DSAF_ROCE_CREDIT_CHN][DSAF_ROCE_CHAN_MODE] = {
> + {0, 0, 0},
> + {1, 0, 0},
> + {2, 1, 0},
> + {3, 1, 0},
> + {4, 2, 1},
> + {4, 2, 1},
> + {5, 3, 1},
> + {5, 3, 1},
> + };
> + const u32 sl_map[DSAF_ROCE_CREDIT_CHN][DSAF_ROCE_CHAN_MODE] = {
> + {0, 0, 0},
> + {0, 1, 1},
> + {0, 0, 2},
> + {0, 1, 3},
> + {0, 0, 0},
> + {1, 1, 1},
> + {0, 0, 2},
> + {1, 1, 3},
> + };

Do you have a plan to send a version with enums/defines for this
numbers? Especially for _CHAN_MODE.