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librmnetctl: Enable multiqueue TX for rmnet devices

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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
This commit is contained in:
Subash Abhinov Kasiviswanathan
2018-08-30 14:23:08 -06:00
parent 85a5f41ed3
commit cf3f8909a7
1 changed files with 15 additions and 0 deletions
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15
rmnetctl/src/librmnetctl.c
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@@ -96,6 +96,13 @@ struct nlmsg {
char data[NLMSG_DATA_SIZE]; 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 LOCAL FUNCTION DEFINITIONS
===========================================================================*/ ===========================================================================*/
@@ -1160,6 +1167,14 @@ int rtrmnet_ctl_newvnd(rmnetctl_hndl_t *hndl, char *devname, char *vndname,
req.nl_addr.nlmsg_len = NLMSG_ALIGN(req.nl_addr.nlmsg_len) + req.nl_addr.nlmsg_len = NLMSG_ALIGN(req.nl_addr.nlmsg_len) +
RTA_ALIGN(RTA_LENGTH(sizeof(val))); 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 */ /* Set up IFLA info kind RMNET that has linkinfo and type */
attrinfo = (struct rtattr *)(((char *)&req) + attrinfo = (struct rtattr *)(((char *)&req) +
NLMSG_ALIGN(req.nl_addr.nlmsg_len)); NLMSG_ALIGN(req.nl_addr.nlmsg_len));