Re: [PATCH net-next V2 1/9] liquidio CN23XX: HW config for VF support

From: Raghu Vatsavayi <redacted>
Date: Wed, 19 Oct 2016 22:40:38 -0700

+/* Default behaviour of Liquidio is to provide one queue per VF. But Liquidio
+ * can also provide multiple queues to each VF. If user wants to change the
+ * default behaviour HW should be provided configuration info at init time,
+ * based on which it will create control queues for communicating with FW.
+ */
+static u32 max_vfs[2] = { 0, 0 };
+module_param_array(max_vfs, int, NULL, 0444);
+MODULE_PARM_DESC(max_vfs, "Assign two comma-separated unsigned integers that specify max number of VFs for PF0 (left of the comma) and PF1 (right of the comma); for 23xx only. By default HW will configure as many VFs as queues after allocating PF queues.To increase queues for VF use this parameter. Use sysfs to create these VFs.");
+
+static unsigned int num_queues_per_pf[2] = { 0, 0 };
+module_param_array(num_queues_per_pf, uint, NULL, 0444);
+MODULE_PARM_DESC(num_queues_per_pf, "two comma-separated unsigned integers that specify number of queues per PF0 (left of the comma) and PF1 (right of the comma); for 23xx only");
+
 static int ptp_enable = 1;

We cannot continue to allow drivers to add custom module parameters to
control this.  It is the worst user experience possible.

We need a tree-wide generic, consistent, manner in which to configure
and control this kind of thing.