netdev - Re: [PATCH 10/11] nvmet-tcp: add NVMe over TCP target driver

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Date:   Sat, 17 Nov 2018 12:15:10 -0800 (PST)
From:   David Miller <davem@...emloft.net>
To:     sagi@...htbitslabs.com
Cc:     linux-nvme@...ts.infradead.org, linux-block@...r.kernel.org,
        netdev@...r.kernel.org, hch@....de, keith.busch@...el.com
Subject: Re: [PATCH 10/11] nvmet-tcp: add NVMe over TCP target driver

From: Sagi Grimberg <sagi@...htbitslabs.com>
Date: Thu, 15 Nov 2018 09:16:22 -0800

> +static unsigned nvmet_tcp_recv_budget = 8;
> +module_param_named(recv_budget, nvmet_tcp_recv_budget, int, S_IRUGO | S_IWUSR);
> +MODULE_PARM_DESC(recv_budget, "recvs budget");
> +
> +static unsigned nvmet_tcp_send_budget = 8;
> +module_param_named(send_budget, nvmet_tcp_send_budget, int, S_IRUGO | S_IWUSR);
> +MODULE_PARM_DESC(send_budget, "sends budget");
> +
> +static unsigned nvmet_tcp_io_work_budget = 64;
> +module_param_named(io_work_budget, nvmet_tcp_io_work_budget, int, S_IRUGO | S_IWUSR);
> +MODULE_PARM_DESC(io_work_budget, "io work budget");

I strongly suggest moving away from module parameters for this stuff.

Create a genetlink socket family and allow run time configuration of these knobs
by the user.

Thanks.