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-rw-r--r--src/plugins/dev_iavf/port.c442
1 files changed, 442 insertions, 0 deletions
diff --git a/src/plugins/dev_iavf/port.c b/src/plugins/dev_iavf/port.c
new file mode 100644
index 00000000000..c0f363c3115
--- /dev/null
+++ b/src/plugins/dev_iavf/port.c
@@ -0,0 +1,442 @@
+/* SPDX-License-Identifier: Apache-2.0
+ * Copyright (c) 2023 Cisco Systems, Inc.
+ */
+
+#include <vnet/vnet.h>
+#include <vnet/dev/dev.h>
+#include <vnet/dev/pci.h>
+#include <vnet/dev/counters.h>
+#include <dev_iavf/iavf.h>
+#include <dev_iavf/iavf_regs.h>
+#include <dev_iavf/virtchnl.h>
+#include <dev_iavf/virtchnl_funcs.h>
+#include <vnet/ethernet/ethernet.h>
+
+VLIB_REGISTER_LOG_CLASS (iavf_log, static) = {
+ .class_name = "iavf",
+ .subclass_name = "port",
+};
+
+static const u8 default_rss_key[] = {
+ 0x44, 0x39, 0x79, 0x6b, 0xb5, 0x4c, 0x50, 0x23, 0xb6, 0x75, 0xea, 0x5b, 0x12,
+ 0x4f, 0x9f, 0x30, 0xb8, 0xa2, 0xc0, 0x3d, 0xdf, 0xdc, 0x4d, 0x02, 0xa0, 0x8c,
+ 0x9b, 0x33, 0x4a, 0xf6, 0x4a, 0x4c, 0x05, 0xc6, 0xfa, 0x34, 0x39, 0x58, 0xd8,
+ 0x55, 0x7d, 0x99, 0x58, 0x3a, 0xe1, 0x38, 0xc9, 0x2e, 0x81, 0x15, 0x03, 0x66,
+};
+
+const static iavf_dyn_ctln dyn_ctln_disabled = {};
+const static iavf_dyn_ctln dyn_ctln_enabled = {
+ .clearpba = 1,
+ .interval = IAVF_ITR_INT / 2,
+ .intena = 1,
+};
+const static iavf_dyn_ctln dyn_ctln_wb_on_itr = {
+ .clearpba = 1,
+ .itr_indx = 1,
+ .interval = 32 / 2,
+ .wb_on_itr = 1,
+};
+
+vnet_dev_rv_t
+iavf_port_vlan_strip_disable (vlib_main_t *vm, vnet_dev_port_t *port)
+{
+ vnet_dev_t *dev = port->dev;
+ iavf_port_t *ap = vnet_dev_get_port_data (port);
+ virtchnl_vlan_caps_t vc;
+ vnet_dev_rv_t rv;
+ u32 outer, inner;
+ const u32 mask = VIRTCHNL_VLAN_ETHERTYPE_8100;
+
+ if ((ap->vf_cap_flags & VIRTCHNL_VF_OFFLOAD_VLAN_V2) == 0)
+ return iavf_vc_op_disable_vlan_stripping (vm, dev);
+
+ if ((rv = iavf_vc_op_get_offload_vlan_v2_caps (vm, dev, &vc)))
+ return rv;
+
+ outer = vc.offloads.stripping_support.outer;
+ inner = vc.offloads.stripping_support.inner;
+
+ outer = outer & VIRTCHNL_VLAN_TOGGLE ? outer & mask : 0;
+ inner = inner & VIRTCHNL_VLAN_TOGGLE ? inner & mask : 0;
+
+ virtchnl_vlan_setting_t vs = {
+ .vport_id = ap->vsi_id,
+ .outer_ethertype_setting = outer,
+ .inner_ethertype_setting = inner,
+ };
+
+ return iavf_vc_op_disable_vlan_stripping_v2 (vm, dev, &vs);
+}
+
+vnet_dev_rv_t
+iavf_port_init_rss (vlib_main_t *vm, vnet_dev_port_t *port)
+{
+ vnet_dev_t *dev = port->dev;
+ iavf_port_t *ap = vnet_dev_get_port_data (port);
+ u16 keylen = clib_min (sizeof (default_rss_key), ap->rss_key_size);
+ u8 buffer[VIRTCHNL_MSG_SZ (virtchnl_rss_key_t, key, keylen)];
+ virtchnl_rss_key_t *key = (virtchnl_rss_key_t *) buffer;
+
+ if (!port->attr.caps.rss)
+ return VNET_DEV_OK;
+
+ /* config RSS key */
+ *key = (virtchnl_rss_key_t){
+ .vsi_id = ap->vsi_id,
+ .key_len = keylen,
+ };
+
+ clib_memcpy (key->key, default_rss_key, sizeof (default_rss_key));
+
+ return iavf_vc_op_config_rss_key (vm, dev, key);
+}
+
+vnet_dev_rv_t
+iavf_port_update_rss_lut (vlib_main_t *vm, vnet_dev_port_t *port)
+{
+ vnet_dev_t *dev = port->dev;
+ iavf_port_t *ap = vnet_dev_get_port_data (port);
+ u16 lut_size = clib_min (IAVF_MAX_RSS_LUT_SIZE, ap->rss_lut_size);
+ u8 buffer[VIRTCHNL_MSG_SZ (virtchnl_rss_lut_t, lut, lut_size)];
+ virtchnl_rss_lut_t *lut = (virtchnl_rss_lut_t *) buffer;
+ u32 enabled_rxq_bmp = 0;
+
+ if (!port->attr.caps.rss)
+ return VNET_DEV_OK;
+
+ *lut = (virtchnl_rss_lut_t){
+ .vsi_id = ap->vsi_id,
+ .lut_entries = lut_size,
+ };
+
+ foreach_vnet_dev_port_rx_queue (q, port)
+ if (q->enabled)
+ enabled_rxq_bmp |= 1ULL << q->queue_id;
+
+ /* config RSS LUT */
+ for (u32 i = 0, j; i < lut->lut_entries;)
+ foreach_set_bit_index (j, enabled_rxq_bmp)
+ {
+ lut->lut[i++] = j;
+ if (i >= lut->lut_entries)
+ break;
+ }
+
+ return iavf_vc_op_config_rss_lut (vm, dev, lut);
+}
+
+vnet_dev_rv_t
+iavf_port_init_vsi_queues (vlib_main_t *vm, vnet_dev_port_t *port)
+{
+ vnet_dev_t *dev = port->dev;
+ iavf_port_t *ap = vnet_dev_get_port_data (port);
+ virtchnl_queue_pair_info_t *qpi;
+ u16 vsi_id = ap->vsi_id;
+ u16 data_size = vlib_buffer_get_default_data_size (vm);
+ u16 max_frame_size = port->max_frame_size;
+ u8 buffer[VIRTCHNL_MSG_SZ (virtchnl_vsi_queue_config_info_t, qpair,
+ ap->num_qp)];
+ virtchnl_vsi_queue_config_info_t *ci =
+ (virtchnl_vsi_queue_config_info_t *) buffer;
+
+ *ci = (virtchnl_vsi_queue_config_info_t){
+ .num_queue_pairs = ap->num_qp,
+ .vsi_id = vsi_id,
+ };
+
+ for (u16 i = 0; i < ap->num_qp; i++)
+ ci->qpair[i] = (virtchnl_queue_pair_info_t){
+ .rxq = { .vsi_id = vsi_id, .queue_id = i },
+ .txq = { .vsi_id = vsi_id, .queue_id = i },
+ };
+
+ foreach_vnet_dev_port_rx_queue (q, port)
+ {
+ iavf_rxq_t *arq = vnet_dev_get_rx_queue_data (q);
+ qpi = ci->qpair + q->queue_id;
+ qpi->rxq.ring_len = q->size;
+ qpi->rxq.databuffer_size = data_size;
+ qpi->rxq.dma_ring_addr = vnet_dev_get_dma_addr (vm, dev, arq->descs);
+ qpi->rxq.max_pkt_size = max_frame_size;
+ }
+
+ foreach_vnet_dev_port_tx_queue (q, port)
+ {
+ iavf_txq_t *atq = vnet_dev_get_tx_queue_data (q);
+ qpi = ci->qpair + q->queue_id;
+ qpi->txq.ring_len = q->size;
+ qpi->txq.dma_ring_addr = vnet_dev_get_dma_addr (vm, dev, atq->descs);
+ }
+
+ return iavf_vc_op_config_vsi_queues (vm, dev, ci);
+}
+
+vnet_dev_rv_t
+iavf_port_rx_irq_enable_disable (vlib_main_t *vm, vnet_dev_port_t *port,
+ int enable)
+{
+ vnet_dev_t *dev = port->dev;
+ iavf_device_t *ad = vnet_dev_get_data (dev);
+ iavf_port_t *ap = vnet_dev_get_port_data (port);
+ u16 n_threads = vlib_get_n_threads ();
+ u8 buffer[VIRTCHNL_MSG_SZ (virtchnl_irq_map_info_t, vecmap, n_threads)];
+ virtchnl_irq_map_info_t *im = (virtchnl_irq_map_info_t *) buffer;
+ vnet_dev_rv_t rv;
+
+ if (port->attr.caps.interrupt_mode)
+ {
+ *im = (virtchnl_irq_map_info_t){
+ .num_vectors = n_threads,
+ };
+ for (u16 i = 0; i < im->num_vectors; i++)
+ im->vecmap[i] = (virtchnl_vector_map_t){
+ .vsi_id = ap->vsi_id,
+ .vector_id = i + 1,
+ };
+ if (enable)
+ foreach_vnet_dev_port_rx_queue (rxq, port)
+ if (rxq->enabled)
+ im->vecmap[rxq->rx_thread_index].rxq_map |= 1 << rxq->queue_id;
+ }
+ else
+ {
+ *im = (virtchnl_irq_map_info_t){
+ .num_vectors = 1,
+ .vecmap[0] = {
+ .vsi_id = ap->vsi_id,
+ .vector_id = 1,
+ },
+ };
+ if (enable)
+ foreach_vnet_dev_port_rx_queue (rxq, port)
+ if (rxq->enabled)
+ im->vecmap[0].rxq_map |= 1 << rxq->queue_id;
+ }
+
+ if ((rv = iavf_vc_op_config_irq_map (vm, dev, im)))
+ return rv;
+
+ for (int i = 0; i < im->num_vectors; i++)
+ {
+ u32 val;
+
+ if (enable == 0)
+ val = dyn_ctln_disabled.as_u32;
+ else if (ap->vf_cap_flags & VIRTCHNL_VF_OFFLOAD_WB_ON_ITR)
+ val = dyn_ctln_wb_on_itr.as_u32;
+ else
+ val = dyn_ctln_enabled.as_u32;
+
+ iavf_reg_write (ad, AVFINT_DYN_CTLN (im->vecmap[i].vector_id), val);
+ }
+
+ return rv;
+}
+
+vnet_dev_rv_t
+iavf_port_init (vlib_main_t *vm, vnet_dev_port_t *port)
+{
+ vnet_dev_rv_t rv;
+
+ log_debug (port->dev, "port %u", port->port_id);
+
+ if ((rv = iavf_port_vlan_strip_disable (vm, port)))
+ return rv;
+
+ if ((rv = iavf_port_init_rss (vm, port)))
+ return rv;
+
+ if (port->dev->poll_stats)
+ iavf_port_add_counters (vm, port);
+
+ return VNET_DEV_OK;
+}
+
+static vnet_dev_rv_t
+iavf_enable_disable_queues (vlib_main_t *vm, vnet_dev_port_t *port, int enable)
+{
+ iavf_port_t *ap = vnet_dev_get_port_data (port);
+
+ virtchnl_queue_select_t qs = {
+ .vsi_id = ap->vsi_id,
+ };
+
+ foreach_vnet_dev_port_rx_queue (q, port)
+ if ((enable && q->enabled) || (!enable && q->started))
+ qs.rx_queues |= 1ULL << q->queue_id;
+
+ foreach_vnet_dev_port_tx_queue (q, port)
+ if ((enable && q->enabled) || (!enable && q->started))
+ qs.tx_queues |= 1ULL << q->queue_id;
+
+ return enable ? iavf_vc_op_enable_queues (vm, port->dev, &qs) :
+ iavf_vc_op_disable_queues (vm, port->dev, &qs);
+}
+
+vnet_dev_rv_t
+iavf_port_start (vlib_main_t *vm, vnet_dev_port_t *port)
+{
+ vnet_dev_rv_t rv;
+
+ log_debug (port->dev, "port %u", port->port_id);
+
+ foreach_vnet_dev_port_rx_queue (q, port)
+ if (q->enabled)
+ if ((rv = iavf_rx_queue_start (vm, q)))
+ goto done;
+
+ foreach_vnet_dev_port_tx_queue (q, port)
+ if ((rv = iavf_tx_queue_start (vm, q)))
+ goto done;
+
+ if ((rv = iavf_port_update_rss_lut (vm, port)))
+ goto done;
+
+ /* configure qpairs */
+ if ((rv = iavf_port_init_vsi_queues (vm, port)))
+ goto done;
+
+ if ((rv = iavf_port_rx_irq_enable_disable (vm, port, /* enable */ 1)))
+ goto done;
+
+ if ((rv = iavf_enable_disable_queues (vm, port, 1)))
+ goto done;
+
+ if (port->dev->poll_stats)
+ vnet_dev_poll_port_add (vm, port, 1, iavf_port_poll_stats);
+
+done:
+ if (rv)
+ {
+ foreach_vnet_dev_port_rx_queue (q, port)
+ iavf_rx_queue_stop (vm, q);
+ foreach_vnet_dev_port_tx_queue (q, port)
+ iavf_tx_queue_stop (vm, q);
+ }
+ return rv;
+}
+
+void
+iavf_port_stop (vlib_main_t *vm, vnet_dev_port_t *port)
+{
+ log_debug (port->dev, "port %u", port->port_id);
+
+ iavf_enable_disable_queues (vm, port, /* enable */ 0);
+ iavf_port_rx_irq_enable_disable (vm, port, /* disable */ 0);
+
+ if (port->dev->poll_stats)
+ vnet_dev_poll_port_remove (vm, port, iavf_port_poll_stats);
+
+ foreach_vnet_dev_port_rx_queue (rxq, port)
+ iavf_rx_queue_stop (vm, rxq);
+
+ foreach_vnet_dev_port_tx_queue (txq, port)
+ iavf_tx_queue_stop (vm, txq);
+
+ vnet_dev_port_state_change (vm, port,
+ (vnet_dev_port_state_changes_t){
+ .change.link_state = 1,
+ .change.link_speed = 1,
+ .link_speed = 0,
+ .link_state = 0,
+ });
+}
+
+vnet_dev_rv_t
+iavf_port_cfg_change_validate (vlib_main_t *vm, vnet_dev_port_t *port,
+ vnet_dev_port_cfg_change_req_t *req)
+{
+ vnet_dev_rv_t rv = VNET_DEV_OK;
+
+ switch (req->type)
+ {
+ case VNET_DEV_PORT_CFG_MAX_FRAME_SIZE:
+ if (port->started)
+ rv = VNET_DEV_ERR_PORT_STARTED;
+ break;
+
+ case VNET_DEV_PORT_CFG_PROMISC_MODE:
+ case VNET_DEV_PORT_CFG_CHANGE_PRIMARY_HW_ADDR:
+ case VNET_DEV_PORT_CFG_ADD_SECONDARY_HW_ADDR:
+ case VNET_DEV_PORT_CFG_REMOVE_SECONDARY_HW_ADDR:
+ break;
+
+ default:
+ rv = VNET_DEV_ERR_NOT_SUPPORTED;
+ };
+
+ return rv;
+}
+
+static vnet_dev_rv_t
+iavf_port_add_del_eth_addr (vlib_main_t *vm, vnet_dev_port_t *port,
+ vnet_dev_hw_addr_t *addr, int is_add,
+ int is_primary)
+{
+ iavf_port_t *ap = vnet_dev_get_port_data (port);
+ virtchnl_ether_addr_list_t al = {
+ .vsi_id = ap->vsi_id,
+ .num_elements = 1,
+ .list[0].primary = is_primary ? 1 : 0,
+ .list[0].extra = is_primary ? 0 : 1,
+ };
+
+ clib_memcpy (al.list[0].addr, addr, sizeof (al.list[0].addr));
+
+ return is_add ? iavf_vc_op_add_eth_addr (vm, port->dev, &al) :
+ iavf_vc_op_del_eth_addr (vm, port->dev, &al);
+}
+
+vnet_dev_rv_t
+iavf_port_cfg_change (vlib_main_t *vm, vnet_dev_port_t *port,
+ vnet_dev_port_cfg_change_req_t *req)
+{
+ vnet_dev_t *dev = port->dev;
+ iavf_port_t *ap = vnet_dev_get_port_data (port);
+ vnet_dev_rv_t rv = VNET_DEV_OK;
+
+ switch (req->type)
+ {
+ case VNET_DEV_PORT_CFG_PROMISC_MODE:
+ {
+ virtchnl_promisc_info_t pi = {
+ .vsi_id = ap->vsi_id,
+ .unicast_promisc = req->promisc,
+ .multicast_promisc = req->promisc,
+ };
+
+ rv = iavf_vc_op_config_promisc_mode (vm, dev, &pi);
+ }
+ break;
+
+ case VNET_DEV_PORT_CFG_CHANGE_PRIMARY_HW_ADDR:
+ rv = iavf_port_add_del_eth_addr (vm, port, &port->primary_hw_addr,
+ /* is_add */ 0,
+ /* is_primary */ 1);
+ if (rv == VNET_DEV_OK)
+ rv = iavf_port_add_del_eth_addr (vm, port, &req->addr,
+ /* is_add */ 1,
+ /* is_primary */ 1);
+ break;
+
+ case VNET_DEV_PORT_CFG_ADD_SECONDARY_HW_ADDR:
+ rv = iavf_port_add_del_eth_addr (vm, port, &req->addr,
+ /* is_add */ 1,
+ /* is_primary */ 0);
+ break;
+
+ case VNET_DEV_PORT_CFG_REMOVE_SECONDARY_HW_ADDR:
+ rv = iavf_port_add_del_eth_addr (vm, port, &req->addr,
+ /* is_add */ 0,
+ /* is_primary */ 0);
+ break;
+
+ case VNET_DEV_PORT_CFG_MAX_FRAME_SIZE:
+ break;
+
+ default:
+ return VNET_DEV_ERR_NOT_SUPPORTED;
+ };
+
+ return rv;
+}