librmnetctl: Enable multiqueue TX for rmnet devices
Create 10 queues for multiqueue rmnet devices.
This is needed to manage flows more precisely at rmnet
layer rather than at a custom classful qdisc.
CRs-fixed: 2308858
Change-Id: I26bfc1b3f8b85e787d40af7a25abdb5f628fa7d8
diff --git a/rmnetctl/src/librmnetctl.c b/rmnetctl/src/librmnetctl.c
index d621f43..fa034cc 100644
--- a/rmnetctl/src/librmnetctl.c
+++ b/rmnetctl/src/librmnetctl.c
@@ -96,6 +96,13 @@
char data[NLMSG_DATA_SIZE];
};
+#define RMNETCTL_NUM_TX_QUEUES 10
+
+/* This needs to be hardcoded here because some legacy linux systems
+ * do not have this definition
+ */
+#define RMNET_IFLA_NUM_TX_QUEUES 31
+
/*===========================================================================
LOCAL FUNCTION DEFINITIONS
===========================================================================*/
@@ -1160,6 +1167,14 @@
req.nl_addr.nlmsg_len = NLMSG_ALIGN(req.nl_addr.nlmsg_len) +
RTA_ALIGN(RTA_LENGTH(sizeof(val)));
+ attrinfo = (struct rtattr *)(((char *)&req) +
+ NLMSG_ALIGN(req.nl_addr.nlmsg_len));
+ attrinfo->rta_type = RMNET_IFLA_NUM_TX_QUEUES;
+ attrinfo->rta_len = RTA_LENGTH(4);
+ *(int *)RTA_DATA(attrinfo) = RMNETCTL_NUM_TX_QUEUES;
+ req.nl_addr.nlmsg_len = NLMSG_ALIGN(req.nl_addr.nlmsg_len) +
+ RTA_ALIGN(RTA_LENGTH((4)));
+
/* Set up IFLA info kind RMNET that has linkinfo and type */
attrinfo = (struct rtattr *)(((char *)&req) +
NLMSG_ALIGN(req.nl_addr.nlmsg_len));