netdev - Re: [PATCH v3 net-next 2/2] ionic: add devlink firmware update

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Message-ID: <20200908165433.08afb9ba@kicinski-fedora-pc1c0hjn.dhcp.thefacebook.com>
Date:   Tue, 8 Sep 2020 16:54:33 -0700
From:   Jakub Kicinski <kuba@...nel.org>
To:     Shannon Nelson <snelson@...sando.io>
Cc:     netdev@...r.kernel.org, davem@...emloft.net
Subject: Re: [PATCH v3 net-next 2/2] ionic: add devlink firmware update

On Tue,  8 Sep 2020 15:48:12 -0700 Shannon Nelson wrote:
> +	dl = priv_to_devlink(ionic);
> +	devlink_flash_update_status_notify(dl, label, NULL, 1, timeout);
> +	start_time = jiffies;
> +	end_time = start_time + (timeout * HZ);
> +	do {
> +		mutex_lock(&ionic->dev_cmd_lock);
> +		ionic_dev_cmd_go(&ionic->idev, &cmd);
> +		err = ionic_dev_cmd_wait(ionic, DEVCMD_TIMEOUT);
> +		mutex_unlock(&ionic->dev_cmd_lock);
> +
> +		devlink_flash_update_status_notify(dl, label, NULL,
> +						   (jiffies - start_time) / HZ,
> +						   timeout);

That's not what I meant. I think we can plumb proper timeout parameter
through devlink all the way to user space.

> +	} while (time_before(jiffies, end_time) && (err == -EAGAIN || err == -ETIMEDOUT));
> +
> +	if (err == -EAGAIN || err == -ETIMEDOUT) {
> +		NL_SET_ERR_MSG_MOD(extack, "Firmware wait timed out");
> +		dev_err(ionic->dev, "DEV_CMD firmware wait %s timed out\n", label);
> +	} else if (err) {
> +		NL_SET_ERR_MSG_MOD(extack, "Firmware wait failed");
> +	} else {
> +		devlink_flash_update_status_notify(dl, label, NULL, timeout, timeout);
> +	}


> +		if (offset > next_interval) {
> +			devlink_flash_update_status_notify(dl, "Downloading",
> +							   NULL, offset, fw->size);
> +			next_interval = offset + (fw->size / IONIC_FW_INTERVAL_FRACTION);
> +		}
> +	}
> +	devlink_flash_update_status_notify(dl, "Downloading", NULL, 1, 1);

This one wasn't updated.