struct vnic_enet_config *c = &enic->config;
int err;
uint64_t sizes;
+ uint32_t max_rq_descs, max_wq_descs;
err = vnic_dev_get_mac_addr(enic->vdev, enic->mac_addr);
if (err) {
GET_CONFIG(loop_tag);
GET_CONFIG(num_arfs);
GET_CONFIG(max_pkt_size);
+ GET_CONFIG(max_rq_ring);
+ GET_CONFIG(max_wq_ring);
/* max packet size is only defined in newer VIC firmware
* and will be 0 for legacy firmware and VICs
((enic->filter_actions & FILTER_ACTION_COUNTER_FLAG) ?
"count " : ""));
- c->wq_desc_count = RTE_MIN((uint32_t)ENIC_MAX_WQ_DESCS,
+ /* The max size of RQ and WQ rings are specified in 1500 series VICs and
+ * beyond. If they are not specified by the VIC or if 64B CQ descriptors
+ * are not being used, the max number of descriptors is 4096.
+ */
+ max_wq_descs = (enic->cq64_request && c->max_wq_ring) ? c->max_wq_ring :
+ ENIC_LEGACY_MAX_WQ_DESCS;
+ c->wq_desc_count = RTE_MIN(max_wq_descs,
RTE_MAX((uint32_t)ENIC_MIN_WQ_DESCS, c->wq_desc_count));
c->wq_desc_count &= 0xffffffe0; /* must be aligned to groups of 32 */
-
- c->rq_desc_count = RTE_MIN((uint32_t)ENIC_MAX_RQ_DESCS,
+ max_rq_descs = (enic->cq64_request && c->max_rq_ring) ? c->max_rq_ring
+ : ENIC_LEGACY_MAX_WQ_DESCS;
+ c->rq_desc_count = RTE_MIN(max_rq_descs,
RTE_MAX((uint32_t)ENIC_MIN_RQ_DESCS, c->rq_desc_count));
c->rq_desc_count &= 0xffffffe0; /* must be aligned to groups of 32 */
+ dev_debug(NULL, "Max supported VIC descriptors: WQ:%u, RQ:%u\n",
+ max_wq_descs, max_rq_descs);
c->intr_timer_usec = RTE_MIN(c->intr_timer_usec,
vnic_dev_get_intr_coal_timer_max(enic->vdev));
dev_info(enic_get_dev(enic),
"vNIC MAC addr " RTE_ETHER_ADDR_PRT_FMT
- "wq/rq %d/%d mtu %d, max mtu:%d\n",
+ " wq/rq %d/%d mtu %d, max mtu:%d\n",
enic->mac_addr[0], enic->mac_addr[1], enic->mac_addr[2],
enic->mac_addr[3], enic->mac_addr[4], enic->mac_addr[5],
c->wq_desc_count, c->rq_desc_count,