On Thu, Jun 16, 2016 at 10:35:14PM +0800, Lijun Ou wrote: > This patch added the operation for cmd, and added some functions > for initializing eq table and selecting cmd mode. > > Signed-off-by: Wei Hu <xavier.hu...@huawei.com> > Signed-off-by: Nenglong Zhao <zhaonengl...@hisilicon.com> > Signed-off-by: Lijun Ou <ouli...@huawei.com> > --- > PATCH v9/v8/v7/v6: > - No change over the PATCH v5 > > PATCH v5: > - The initial patch which was redesigned based on the second patch > in PATCH v4 > ---
<...>
> +#define CMD_MAX_NUM 32
> +
> +int hns_roce_cmd_init(struct hns_roce_dev *hr_dev)
> +{
> + struct device *dev = &hr_dev->pdev->dev;
> +
> + mutex_init(&hr_dev->cmd.hcr_mutex);
> + sema_init(&hr_dev->cmd.poll_sem, 1);
> + hr_dev->cmd.use_events = 0;
> + hr_dev->cmd.toggle = 1;
> + hr_dev->cmd.max_cmds = CMD_MAX_NUM;
<...>
> + for (hr_cmd->token_mask = 1; hr_cmd->token_mask < hr_cmd->max_cmds;
> + hr_cmd->token_mask <<= 1)
> + ;
> + --hr_cmd->token_mask;
It doesn't look that you dynamically change max_cmds supported.
Why do you need to calculate token_mask dynamically?
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