octeon: native driver for Marvell Octeon SoC

Type: feature
Change-Id: I6898625c4e8854f777407dac3159e4c639a54860
Signed-off-by: Monendra Singh Kushwaha <kmonendra@marvell.com>
Signed-off-by: Damjan Marion <damarion@cisco.com>

1 files changed, 418 insertions, 0 deletions

diff --git a/src/plugins/dev_octeon/port.c b/src/plugins/dev_octeon/port.c
new file mode 100644
index 00000000000..5857bc15f77
--- /dev/null
+++ b/src/plugins/dev_octeon/port.c
@@ -0,0 +1,418 @@
+/* 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_octeon/octeon.h>
+#include <dev_octeon/common.h>
+#include <vnet/ethernet/ethernet.h>
+
+VLIB_REGISTER_LOG_CLASS (oct_log, static) = {
+  .class_name = "octeon",
+  .subclass_name = "port",
+};
+
+static const u8 default_rss_key[] = {
+  0xfe, 0xed, 0x0b, 0xad, 0xfe, 0xed, 0x0b, 0xad, 0xad, 0x0b, 0xed, 0xfe,
+  0xad, 0x0b, 0xed, 0xfe, 0x13, 0x57, 0x9b, 0xef, 0x24, 0x68, 0xac, 0x0e,
+  0x91, 0x72, 0x53, 0x11, 0x82, 0x64, 0x20, 0x44, 0x12, 0xef, 0x34, 0xcd,
+  0x56, 0xbc, 0x78, 0x9a, 0x9a, 0x78, 0xbc, 0x56, 0xcd, 0x34, 0xef, 0x12
+};
+
+static const u32 default_rss_flowkey =
+  (FLOW_KEY_TYPE_IPV4 | FLOW_KEY_TYPE_IPV6 | FLOW_KEY_TYPE_TCP |
+   FLOW_KEY_TYPE_UDP | FLOW_KEY_TYPE_SCTP);
+
+static const u64 rxq_cfg =
+  ROC_NIX_LF_RX_CFG_DIS_APAD | ROC_NIX_LF_RX_CFG_IP6_UDP_OPT |
+  ROC_NIX_LF_RX_CFG_L2_LEN_ERR | ROC_NIX_LF_RX_CFG_DROP_RE |
+  ROC_NIX_LF_RX_CFG_CSUM_OL4 | ROC_NIX_LF_RX_CFG_CSUM_IL4 |
+  ROC_NIX_LF_RX_CFG_LEN_OL3 | ROC_NIX_LF_RX_CFG_LEN_OL4 |
+  ROC_NIX_LF_RX_CFG_LEN_IL3 | ROC_NIX_LF_RX_CFG_LEN_IL4;
+
+static vnet_dev_rv_t
+oct_roc_err (vnet_dev_t *dev, int rv, char *fmt, ...)
+{
+  u8 *s = 0;
+  va_list va;
+
+  va_start (va, fmt);
+  s = va_format (s, fmt, &va);
+  va_end (va);
+
+  log_err (dev, "%v - ROC error %s (%d)", s, roc_error_msg_get (rv), rv);
+
+  vec_free (s);
+  return VNET_DEV_ERR_INTERNAL;
+}
+
+vnet_dev_rv_t
+oct_port_init (vlib_main_t *vm, vnet_dev_port_t *port)
+{
+  vnet_dev_t *dev = port->dev;
+  oct_device_t *cd = vnet_dev_get_data (dev);
+  oct_port_t *cp = vnet_dev_get_port_data (port);
+  struct roc_nix *nix = cd->nix;
+  vnet_dev_rv_t rv;
+  int rrv;
+
+  log_debug (dev, "port init: port %u", port->port_id);
+
+  if ((rrv = roc_nix_lf_alloc (nix, port->intf.num_rx_queues,
+			       port->intf.num_tx_queues, rxq_cfg)))
+    {
+      oct_port_deinit (vm, port);
+      return oct_roc_err (
+	dev, rrv,
+	"roc_nix_lf_alloc(nb_rxq = %u, nb_txq = %d, rxq_cfg=0x%lx) failed",
+	port->intf.num_rx_queues, port->intf.num_tx_queues, rxq_cfg);
+    }
+  cp->lf_allocated = 1;
+
+  if ((rrv = roc_nix_tm_init (nix)))
+    {
+      oct_port_deinit (vm, port);
+      return oct_roc_err (dev, rrv, "roc_nix_tm_init() failed");
+    }
+  cp->tm_initialized = 1;
+
+  if ((rrv = roc_nix_tm_hierarchy_enable (nix, ROC_NIX_TM_DEFAULT,
+					  /* xmit_enable */ 0)))
+    {
+      oct_port_deinit (vm, port);
+      return oct_roc_err (dev, rrv, "roc_nix_tm_hierarchy_enable() failed");
+    }
+
+  if ((rrv = roc_nix_rss_default_setup (nix, default_rss_flowkey)))
+    {
+      oct_port_deinit (vm, port);
+      return oct_roc_err (dev, rrv, "roc_nix_rss_default_setup() failed");
+    }
+
+  roc_nix_rss_key_set (nix, default_rss_key);
+
+  cp->npc.roc_nix = nix;
+  if ((rrv = roc_npc_init (&cp->npc)))
+    {
+      oct_port_deinit (vm, port);
+      return oct_roc_err (dev, rrv, "roc_npc_init() failed");
+    }
+  cp->npc_initialized = 1;
+
+  foreach_vnet_dev_port_rx_queue (q, port)
+    if (q->enabled)
+      if ((rv = oct_rxq_init (vm, q)))
+	{
+	  oct_port_deinit (vm, port);
+	  return rv;
+	}
+
+  foreach_vnet_dev_port_tx_queue (q, port)
+    if (q->enabled)
+      if ((rv = oct_txq_init (vm, q)))
+	{
+	  oct_port_deinit (vm, port);
+	  return rv;
+	}
+
+  return VNET_DEV_OK;
+}
+
+void
+oct_port_deinit (vlib_main_t *vm, vnet_dev_port_t *port)
+{
+  vnet_dev_t *dev = port->dev;
+  oct_device_t *cd = vnet_dev_get_data (dev);
+  oct_port_t *cp = vnet_dev_get_port_data (port);
+  struct roc_nix *nix = cd->nix;
+  int rrv;
+
+  foreach_vnet_dev_port_rx_queue (q, port)
+    oct_rxq_deinit (vm, q);
+  foreach_vnet_dev_port_tx_queue (q, port)
+    oct_txq_deinit (vm, q);
+
+  if (cp->npc_initialized)
+    {
+      if ((rrv = roc_npc_fini (&cp->npc)))
+	oct_roc_err (dev, rrv, "roc_npc_fini() failed");
+      cp->npc_initialized = 0;
+    }
+
+  if (cp->tm_initialized)
+    {
+      roc_nix_tm_fini (nix);
+      cp->tm_initialized = 0;
+    }
+
+  if (cp->lf_allocated)
+    {
+      if ((rrv = roc_nix_lf_free (nix)))
+	oct_roc_err (dev, rrv, "roc_nix_lf_free() failed");
+      cp->lf_allocated = 0;
+    }
+}
+
+void
+oct_port_poll (vlib_main_t *vm, vnet_dev_port_t *port)
+{
+  vnet_dev_t *dev = port->dev;
+  oct_device_t *cd = vnet_dev_get_data (dev);
+  struct roc_nix *nix = cd->nix;
+  struct roc_nix_link_info link_info = {};
+  vnet_dev_port_state_changes_t changes = {};
+  int rrv;
+
+  rrv = roc_nix_mac_link_info_get (nix, &link_info);
+  if (rrv)
+    return;
+
+  if (cd->status != link_info.status)
+    {
+      changes.change.link_state = 1;
+      changes.link_state = link_info.status;
+      cd->status = link_info.status;
+    }
+
+  if (cd->full_duplex != link_info.full_duplex)
+    {
+      changes.change.link_duplex = 1;
+      changes.full_duplex = link_info.full_duplex;
+      cd->full_duplex = link_info.full_duplex;
+    }
+
+  if (cd->speed != link_info.speed)
+    {
+      changes.change.link_speed = 1;
+      changes.link_speed = link_info.speed;
+      cd->speed = link_info.speed;
+    }
+
+  if (changes.change.any == 0)
+    return;
+
+  log_debug (dev,
+	     "status %u full_duplex %u speed %u port %u lmac_type_id %u "
+	     "fec %u aautoneg %u",
+	     link_info.status, link_info.full_duplex, link_info.speed,
+	     link_info.port, link_info.lmac_type_id, link_info.fec,
+	     link_info.autoneg);
+  vnet_dev_port_state_change (vm, port, changes);
+}
+
+vnet_dev_rv_t
+oct_rxq_start (vlib_main_t *vm, vnet_dev_rx_queue_t *rxq)
+{
+  vnet_dev_t *dev = rxq->port->dev;
+  oct_rxq_t *crq = vnet_dev_get_rx_queue_data (rxq);
+  u32 buffer_indices[rxq->size], n_alloc;
+  u8 bpi = vnet_dev_get_rx_queue_buffer_pool_index (rxq);
+  int rrv;
+
+  n_alloc = vlib_buffer_alloc_from_pool (vm, buffer_indices, rxq->size, bpi);
+
+  for (int i = 0; i < n_alloc; i++)
+    roc_npa_aura_op_free (
+      crq->aura_handle, 0,
+      pointer_to_uword (vlib_get_buffer (vm, buffer_indices[i])) -
+	crq->hdr_off);
+
+  crq->n_enq = n_alloc;
+
+  if (roc_npa_aura_op_available (crq->aura_handle) != rxq->size)
+    log_warn (rxq->port->dev, "rx queue %u aura not filled completelly",
+	      rxq->queue_id);
+
+  if ((rrv = roc_nix_rq_ena_dis (&crq->rq, 1)))
+    return oct_roc_err (dev, rrv, "roc_nix_rq_ena_dis() failed");
+
+  return VNET_DEV_OK;
+}
+void
+oct_rxq_stop (vlib_main_t *vm, vnet_dev_rx_queue_t *rxq)
+{
+  vnet_dev_t *dev = rxq->port->dev;
+  oct_rxq_t *crq = vnet_dev_get_rx_queue_data (rxq);
+  int rrv;
+  u32 n;
+
+  if ((rrv = roc_nix_rq_ena_dis (&crq->rq, 0)))
+    oct_roc_err (dev, rrv, "roc_nix_rq_ena_dis() failed");
+
+  n = oct_aura_free_all_buffers (vm, crq->aura_handle, crq->hdr_off);
+
+  if (crq->n_enq - n > 0)
+    log_err (dev, "%u buffers leaked on rx queue %u stop", crq->n_enq - n,
+	     rxq->queue_id);
+  else
+    log_debug (dev, "%u buffers freed from rx queue %u", n, rxq->queue_id);
+
+  crq->n_enq = 0;
+}
+
+void
+oct_txq_stop (vlib_main_t *vm, vnet_dev_tx_queue_t *txq)
+{
+  vnet_dev_t *dev = txq->port->dev;
+  oct_txq_t *ctq = vnet_dev_get_tx_queue_data (txq);
+  oct_npa_batch_alloc_cl128_t *cl;
+  u32 n, off = ctq->hdr_off;
+
+  n = oct_aura_free_all_buffers (vm, ctq->aura_handle, off);
+  ctq->n_enq -= n;
+
+  if (ctq->n_enq > 0 && ctq->ba_num_cl > 0)
+    for (n = ctq->ba_num_cl, cl = ctq->ba_buffer + ctq->ba_first_cl; n;
+	 cl++, n--)
+      {
+	if (cl->status.ccode != 0)
+	  for (u32 i = 0; i < cl->status.count; i++)
+	    {
+	      vlib_buffer_t *b = (vlib_buffer_t *) (cl->iova[i] + off);
+	      vlib_buffer_free_one (vm, vlib_get_buffer_index (vm, b));
+	      ctq->n_enq--;
+	    }
+      }
+
+  if (ctq->n_enq > 0)
+    log_err (dev, "%u buffers leaked on tx queue %u stop", ctq->n_enq,
+	     txq->queue_id);
+  else
+    log_debug (dev, "%u buffers freed from tx queue %u", n, txq->queue_id);
+
+  ctq->n_enq = 0;
+}
+
+vnet_dev_rv_t
+oct_port_start (vlib_main_t *vm, vnet_dev_port_t *port)
+{
+  vnet_dev_t *dev = port->dev;
+  oct_device_t *cd = vnet_dev_get_data (dev);
+  struct roc_nix *nix = cd->nix;
+  struct roc_nix_eeprom_info eeprom_info = {};
+  vnet_dev_rv_t rv;
+  int rrv;
+
+  log_debug (port->dev, "port start: port %u", port->port_id);
+
+  foreach_vnet_dev_port_rx_queue (q, port)
+    if ((rv = oct_rxq_start (vm, q)) != VNET_DEV_OK)
+      goto done;
+
+  foreach_vnet_dev_port_tx_queue (q, port)
+    {
+      oct_txq_t *ctq = vnet_dev_get_tx_queue_data (q);
+      ctq->n_enq = 0;
+    }
+
+  if ((rrv = roc_nix_mac_mtu_set (nix, 9200)))
+    {
+      rv = oct_roc_err (dev, rrv, "roc_nix_mac_mtu_set() failed");
+      goto done;
+    }
+
+  if ((rrv = roc_nix_npc_rx_ena_dis (nix, true)))
+    {
+      rv = oct_roc_err (dev, rrv, "roc_nix_npc_rx_ena_dis() failed");
+      goto done;
+    }
+
+  vnet_dev_poll_port_add (vm, port, 0.5, oct_port_poll);
+
+  if (roc_nix_eeprom_info_get (nix, &eeprom_info) == 0)
+    {
+      log_debug (dev, "sff_id %u data %U", eeprom_info.sff_id, format_hexdump,
+		 eeprom_info.buf, sizeof (eeprom_info.buf));
+    }
+done:
+  if (rv != VNET_DEV_OK)
+    oct_port_stop (vm, port);
+  return VNET_DEV_OK;
+}
+
+void
+oct_port_stop (vlib_main_t *vm, vnet_dev_port_t *port)
+{
+  vnet_dev_t *dev = port->dev;
+  oct_device_t *cd = vnet_dev_get_data (dev);
+  struct roc_nix *nix = cd->nix;
+  int rrv;
+
+  log_debug (port->dev, "port stop: port %u", port->port_id);
+
+  vnet_dev_poll_port_remove (vm, port, oct_port_poll);
+
+  rrv = roc_nix_npc_rx_ena_dis (nix, false);
+  if (rrv)
+    {
+      oct_roc_err (dev, rrv, "roc_nix_npc_rx_ena_dis() failed");
+      return;
+    }
+
+  foreach_vnet_dev_port_rx_queue (q, port)
+    oct_rxq_stop (vm, q);
+
+  foreach_vnet_dev_port_tx_queue (q, port)
+    oct_txq_stop (vm, q);
+}
+
+vnet_dev_rv_t
+oct_port_cfg_change_precheck (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_RX_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;
+}
+
+vnet_dev_rv_t
+oct_port_cfg_change (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_PROMISC_MODE:
+      {
+      }
+      break;
+
+    case VNET_DEV_PORT_CFG_CHANGE_PRIMARY_HW_ADDR:
+      break;
+
+    case VNET_DEV_PORT_CFG_ADD_SECONDARY_HW_ADDR:
+      break;
+
+    case VNET_DEV_PORT_CFG_REMOVE_SECONDARY_HW_ADDR:
+      break;
+
+    case VNET_DEV_PORT_CFG_MAX_RX_FRAME_SIZE:
+      break;
+
+    default:
+      return VNET_DEV_ERR_NOT_SUPPORTED;
+    };
+
+  return rv;
+}