link: Support IFLA_NUM_TX_QUEUES and IFLA_NUM_RX_QUEUES
New functions: rtnl_link_set_num_tx_queues(link, nqueues) rtnl_link_get_num_tx_queues(link) rtnl_link_set_num_rx_queues(link, nqueues) rtnl_link_get_num_rx_queues(link) Signed-off-by: Thomas Graf <tgraf@redhat.com>
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3 changed files with 93 additions and 0 deletions
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@ -174,6 +174,8 @@ struct rtnl_link
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void * l_info;
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char * l_ifalias;
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uint32_t l_promiscuity;
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uint32_t l_num_tx_queues;
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uint32_t l_num_rx_queues;
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};
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struct rtnl_ncacheinfo
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@ -200,6 +200,12 @@ extern char * rtnl_link_get_type(struct rtnl_link *);
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extern void rtnl_link_set_promiscuity(struct rtnl_link *, uint32_t);
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extern uint32_t rtnl_link_get_promiscuity(struct rtnl_link *);
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extern void rtnl_link_set_num_tx_queues(struct rtnl_link *, uint32_t);
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extern uint32_t rtnl_link_get_num_tx_queues(struct rtnl_link *);
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extern void rtnl_link_set_num_rx_queues(struct rtnl_link *, uint32_t);
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extern uint32_t rtnl_link_get_num_rx_queues(struct rtnl_link *);
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extern int rtnl_link_enslave_ifindex(struct nl_sock *, int, int);
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extern int rtnl_link_enslave(struct nl_sock *, struct rtnl_link *,
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struct rtnl_link *);
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@ -50,6 +50,8 @@
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#define LINK_ATTR_IFALIAS (1 << 19)
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#define LINK_ATTR_NUM_VF (1 << 20)
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#define LINK_ATTR_PROMISCUITY (1 << 21)
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#define LINK_ATTR_NUM_TX_QUEUES (1 << 22)
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#define LINK_ATTR_NUM_RX_QUEUES (1 << 23)
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static struct nl_cache_ops rtnl_link_ops;
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static struct nl_object_ops link_obj_ops;
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@ -256,6 +258,8 @@ static struct nla_policy link_policy[IFLA_MAX+1] = {
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[IFLA_NUM_VF] = { .type = NLA_U32 },
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[IFLA_AF_SPEC] = { .type = NLA_NESTED },
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[IFLA_PROMISCUITY] = { .type = NLA_U32 },
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[IFLA_NUM_TX_QUEUES] = { .type = NLA_U32 },
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[IFLA_NUM_RX_QUEUES] = { .type = NLA_U32 },
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};
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static struct nla_policy link_info_policy[IFLA_INFO_MAX+1] = {
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@ -542,6 +546,16 @@ static int link_msg_parser(struct nl_cache_ops *ops, struct sockaddr_nl *who,
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link->ce_mask |= LINK_ATTR_PROMISCUITY;
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}
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if (tb[IFLA_NUM_TX_QUEUES]) {
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link->l_num_tx_queues = nla_get_u32(tb[IFLA_NUM_TX_QUEUES]);
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link->ce_mask |= LINK_ATTR_NUM_TX_QUEUES;
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}
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if (tb[IFLA_NUM_RX_QUEUES]) {
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link->l_num_rx_queues = nla_get_u32(tb[IFLA_NUM_RX_QUEUES]);
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link->ce_mask |= LINK_ATTR_NUM_RX_QUEUES;
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};
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err = pp->pp_cb((struct nl_object *) link, pp);
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errout:
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rtnl_link_af_ops_put(af_ops);
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@ -636,6 +650,12 @@ static void link_dump_details(struct nl_object *obj, struct nl_dump_params *p)
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nl_dump_line(p, " ");
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if (link->ce_mask & LINK_ATTR_NUM_TX_QUEUES)
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nl_dump(p, "txq %u ", link->l_num_tx_queues);
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if (link->ce_mask & LINK_ATTR_NUM_RX_QUEUES)
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nl_dump(p, "rxq %u ", link->l_num_rx_queues);
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if (link->ce_mask & LINK_ATTR_BRD)
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nl_dump(p, "brd %s ", nl_addr2str(link->l_bcast, buf,
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sizeof(buf)));
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@ -794,6 +814,8 @@ static int link_compare(struct nl_object *_a, struct nl_object *_b,
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diff |= LINK_DIFF(IFALIAS, strcmp(a->l_ifalias, b->l_ifalias));
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diff |= LINK_DIFF(NUM_VF, a->l_num_vf != b->l_num_vf);
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diff |= LINK_DIFF(PROMISCUITY, a->l_promiscuity != b->l_promiscuity);
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diff |= LINK_DIFF(NUM_TX_QUEUES,a->l_num_tx_queues != b->l_num_tx_queues);
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diff |= LINK_DIFF(NUM_RX_QUEUES,a->l_num_rx_queues != b->l_num_rx_queues);
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if (flags & LOOSE_COMPARISON)
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diff |= LINK_DIFF(FLAGS,
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@ -828,6 +850,8 @@ static const struct trans_tbl link_attrs[] = {
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__ADD(LINK_ATTR_IFALIAS, ifalias)
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__ADD(LINK_ATTR_NUM_VF, num_vf)
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__ADD(LINK_ATTR_PROMISCUITY, promiscuity)
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__ADD(LINK_ATTR_NUM_TX_QUEUES, num_tx_queues)
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__ADD(LINK_ATTR_NUM_RX_QUEUES, num_rx_queues)
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};
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static char *link_attrs2str(int attrs, char *buf, size_t len)
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@ -2049,6 +2073,67 @@ uint32_t rtnl_link_get_promiscuity(struct rtnl_link *link)
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return link->l_promiscuity;
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}
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/**
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* Set number of TX queues
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* @arg link Link object
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* @arg nqueues Number of queues
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*
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* Sets the number of TX queues of the link object. The value is considered
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* by the kernel when creating network devices that can be created via
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* netlink. The value will be passed on to alloc_netdev_mqs()
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*
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* Therefore use of rtnl_link_set_num_tx_queues() only makes sense in
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* combination with rtnl_link_add() or if the link object is used as a filter.
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*
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* @see rtnl_link_get_num_tx_queues()
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*/
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void rtnl_link_set_num_tx_queues(struct rtnl_link *link, uint32_t nqueues)
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{
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link->l_num_tx_queues = nqueues;
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link->ce_mask |= LINK_ATTR_NUM_TX_QUEUES;
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}
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/**
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* Return number of TX queues
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* @arg link Link object
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*
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* @return Number of TX queues or 0
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*/
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uint32_t rtnl_link_get_num_tx_queues(struct rtnl_link *link)
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{
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return link->l_num_tx_queues;
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}
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/**
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* Set number of RX queues
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* @arg link Link object
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* @arg nqueues Number of queues
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*
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* Sets the number of RX queues of the link object. The value is considered
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* by the kernel when creating network devices that can be created via
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* netlink. The value will be passed on to alloc_netdev_mqs()
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*
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* Therefore use of rtnl_link_set_num_rx_queues() only makes sense in
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* combination with rtnl_link_add() or if the link object is used as a filter.
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*
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* @see rtnl_link_get_num_rx_queues()
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*/
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void rtnl_link_set_num_rx_queues(struct rtnl_link *link, uint32_t nqueues)
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{
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link->l_num_rx_queues = nqueues;
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link->ce_mask |= LINK_ATTR_NUM_RX_QUEUES;
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}
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/**
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* Return number of RX queues
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* @arg link Link object
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*
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* @return Number of RX queues or 0
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*/
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uint32_t rtnl_link_get_num_rx_queues(struct rtnl_link *link)
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{
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return link->l_num_rx_queues;
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}
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/** @} */
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