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, 303 insertions, 0 deletions

diff --git a/src/plugins/dev_octeon/queue.c b/src/plugins/dev_octeon/queue.c
new file mode 100644
index 00000000000..9378fc3b7c7
--- /dev/null
+++ b/src/plugins/dev_octeon/queue.c
@@ -0,0 +1,303 @@
+/* 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 <vnet/ethernet/ethernet.h>
+#include <vnet/plugin/plugin.h>
+#include <vpp/app/version.h>
+
+VLIB_REGISTER_LOG_CLASS (oct_log, static) = {
+  .class_name = "octeon",
+  .subclass_name = "queue",
+};
+
+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_rx_queue_alloc (vlib_main_t *vm, vnet_dev_rx_queue_t *rxq)
+{
+  vnet_dev_port_t *port = rxq->port;
+  vnet_dev_t *dev = port->dev;
+
+  log_debug (dev, "rx_queue_alloc: queue %u alocated", rxq->queue_id);
+  return VNET_DEV_OK;
+}
+
+void
+oct_rx_queue_free (vlib_main_t *vm, vnet_dev_rx_queue_t *rxq)
+{
+  vnet_dev_port_t *port = rxq->port;
+  vnet_dev_t *dev = port->dev;
+
+  log_debug (dev, "rx_queue_free: queue %u", rxq->queue_id);
+}
+
+vnet_dev_rv_t
+oct_tx_queue_alloc (vlib_main_t *vm, vnet_dev_tx_queue_t *txq)
+{
+  oct_txq_t *ctq = vnet_dev_get_tx_queue_data (txq);
+  vnet_dev_port_t *port = txq->port;
+  vnet_dev_t *dev = port->dev;
+
+  log_debug (dev, "tx_queue_alloc: queue %u alocated", txq->queue_id);
+
+  return vnet_dev_dma_mem_alloc (
+    vm, dev, sizeof (void *) * ROC_CN10K_NPA_BATCH_ALLOC_MAX_PTRS, 128,
+    (void **) &ctq->ba_buffer);
+}
+
+void
+oct_tx_queue_free (vlib_main_t *vm, vnet_dev_tx_queue_t *txq)
+{
+  oct_txq_t *ctq = vnet_dev_get_tx_queue_data (txq);
+  vnet_dev_port_t *port = txq->port;
+  vnet_dev_t *dev = port->dev;
+
+  log_debug (dev, "tx_queue_free: queue %u", txq->queue_id);
+
+  vnet_dev_dma_mem_free (vm, dev, ctq->ba_buffer);
+}
+
+vnet_dev_rv_t
+oct_rxq_init (vlib_main_t *vm, vnet_dev_rx_queue_t *rxq)
+{
+  oct_rxq_t *crq = vnet_dev_get_rx_queue_data (rxq);
+  vnet_dev_t *dev = rxq->port->dev;
+  oct_device_t *cd = vnet_dev_get_data (dev);
+  vlib_buffer_pool_t *bp =
+    vlib_get_buffer_pool (vm, vnet_dev_get_rx_queue_buffer_pool_index (rxq));
+  struct roc_nix *nix = cd->nix;
+  int rrv;
+
+  struct npa_aura_s aura = {};
+  struct npa_pool_s npapool = { .nat_align = 1 };
+
+  if ((rrv = roc_npa_pool_create (&crq->aura_handle, bp->alloc_size, rxq->size,
+				  &aura, &npapool, 0)))
+    {
+      oct_rxq_deinit (vm, rxq);
+      return oct_roc_err (dev, rrv, "roc_npa_pool_create() failed");
+    }
+
+  crq->npa_pool_initialized = 1;
+  log_notice (dev, "NPA pool created, aura_handle = 0x%lx", crq->aura_handle);
+
+  crq->cq = (struct roc_nix_cq){
+    .nb_desc = rxq->size,
+    .qid = rxq->queue_id,
+  };
+
+  if ((rrv = roc_nix_cq_init (nix, &crq->cq)))
+    {
+      oct_rxq_deinit (vm, rxq);
+      return oct_roc_err (dev, rrv,
+			  "roc_nix_cq_init(qid = %u, nb_desc = %u) failed",
+			  crq->cq.nb_desc, crq->cq.nb_desc);
+    }
+
+  crq->cq_initialized = 1;
+  log_debug (dev, "CQ %u initialised (qmask 0x%x wdata 0x%lx)", crq->cq.qid,
+	     crq->cq.qmask, crq->cq.wdata);
+
+  crq->hdr_off = vm->buffer_main->ext_hdr_size;
+
+  crq->rq = (struct roc_nix_rq){
+    .qid = rxq->queue_id,
+    .cqid = crq->cq.qid,
+    .aura_handle = crq->aura_handle,
+    .first_skip = crq->hdr_off + sizeof (vlib_buffer_t),
+    .later_skip = crq->hdr_off + sizeof (vlib_buffer_t),
+    .lpb_size = bp->data_size + crq->hdr_off + sizeof (vlib_buffer_t),
+    .flow_tag_width = 32,
+  };
+
+  if ((rrv = roc_nix_rq_init (nix, &crq->rq, 1 /* disable */)))
+    {
+      oct_rxq_deinit (vm, rxq);
+      return oct_roc_err (dev, rrv, "roc_nix_rq_init(qid = %u) failed",
+			  crq->rq.qid);
+    }
+
+  crq->rq_initialized = 1;
+  crq->lmt_base_addr = roc_idev_lmt_base_addr_get ();
+  crq->aura_batch_free_ioaddr =
+    (roc_npa_aura_handle_to_base (crq->aura_handle) +
+     NPA_LF_AURA_BATCH_FREE0) |
+    (0x7 << 4);
+
+  log_debug (dev, "RQ %u initialised", crq->cq.qid);
+
+  return VNET_DEV_OK;
+}
+
+void
+oct_rxq_deinit (vlib_main_t *vm, vnet_dev_rx_queue_t *rxq)
+{
+  oct_rxq_t *crq = vnet_dev_get_rx_queue_data (rxq);
+  vnet_dev_t *dev = rxq->port->dev;
+  int rrv;
+
+  if (crq->rq_initialized)
+    {
+      rrv = roc_nix_rq_fini (&crq->rq);
+      if (rrv)
+	oct_roc_err (dev, rrv, "roc_nix_rq_fini() failed");
+      crq->rq_initialized = 0;
+    }
+
+  if (crq->cq_initialized)
+    {
+      rrv = roc_nix_cq_fini (&crq->cq);
+      if (rrv)
+	oct_roc_err (dev, rrv, "roc_nix_cq_fini() failed");
+      crq->cq_initialized = 0;
+    }
+
+  if (crq->npa_pool_initialized)
+    {
+      rrv = roc_npa_pool_destroy (crq->aura_handle);
+      if (rrv)
+	oct_roc_err (dev, rrv, "roc_npa_pool_destroy() failed");
+      crq->npa_pool_initialized = 0;
+    }
+}
+
+vnet_dev_rv_t
+oct_txq_init (vlib_main_t *vm, vnet_dev_tx_queue_t *txq)
+{
+  oct_txq_t *ctq = vnet_dev_get_tx_queue_data (txq);
+  vnet_dev_t *dev = txq->port->dev;
+  oct_device_t *cd = vnet_dev_get_data (dev);
+  struct roc_nix *nix = cd->nix;
+  struct npa_aura_s aura = {};
+  struct npa_pool_s npapool = { .nat_align = 1 };
+  int rrv;
+  vlib_buffer_pool_t *bp = vlib_get_buffer_pool (vm, 0);
+
+  if ((rrv = roc_npa_pool_create (
+	 &ctq->aura_handle, bp->alloc_size,
+	 txq->size * 6 /* worst case - two SG with 3 segs each = 6 */, &aura,
+	 &npapool, 0)))
+    {
+      oct_txq_deinit (vm, txq);
+      return oct_roc_err (dev, rrv, "roc_npa_pool_create() failed");
+    }
+
+  ctq->npa_pool_initialized = 1;
+  log_notice (dev, "NPA pool created, aura_handle = 0x%lx", ctq->aura_handle);
+
+  ctq->sq = (struct roc_nix_sq){
+    .nb_desc = txq->size,
+    .qid = txq->queue_id,
+    .max_sqe_sz = NIX_MAXSQESZ_W16,
+  };
+
+  if ((rrv = roc_nix_sq_init (nix, &ctq->sq)))
+    {
+      oct_txq_deinit (vm, txq);
+      return oct_roc_err (
+	dev, rrv,
+	"roc_nix_sq_init(qid = %u, nb_desc = %u, max_sqe_sz = %u) failed",
+	ctq->sq.nb_desc, ctq->sq.max_sqe_sz);
+    }
+
+  ctq->sq_initialized = 1;
+  log_debug (dev, "SQ initialised, qid %u, nb_desc %u, max_sqe_sz %u",
+	     ctq->sq.qid, ctq->sq.nb_desc, ctq->sq.max_sqe_sz);
+
+  ctq->hdr_off = vm->buffer_main->ext_hdr_size;
+
+  if (ctq->sq.lmt_addr == 0)
+    ctq->sq.lmt_addr = (void *) nix->lmt_base;
+  ctq->io_addr = ctq->sq.io_addr & ~0x7fULL;
+  ctq->lmt_addr = ctq->sq.lmt_addr;
+
+  return VNET_DEV_OK;
+}
+
+void
+oct_txq_deinit (vlib_main_t *vm, vnet_dev_tx_queue_t *txq)
+{
+  oct_txq_t *ctq = vnet_dev_get_tx_queue_data (txq);
+  vnet_dev_t *dev = txq->port->dev;
+  int rrv;
+
+  if (ctq->sq_initialized)
+    {
+      rrv = roc_nix_sq_fini (&ctq->sq);
+      if (rrv)
+	oct_roc_err (dev, rrv, "roc_nix_sq_fini() failed");
+      ctq->sq_initialized = 0;
+    }
+
+  if (ctq->npa_pool_initialized)
+    {
+      rrv = roc_npa_pool_destroy (ctq->aura_handle);
+      if (rrv)
+	oct_roc_err (dev, rrv, "roc_npa_pool_destroy() failed");
+      ctq->npa_pool_initialized = 0;
+    }
+}
+
+u8 *
+format_oct_rxq_info (u8 *s, va_list *args)
+{
+  vnet_dev_format_args_t *a = va_arg (*args, vnet_dev_format_args_t *);
+  vnet_dev_rx_queue_t *rxq = va_arg (*args, vnet_dev_rx_queue_t *);
+  oct_rxq_t *crq = vnet_dev_get_rx_queue_data (rxq);
+  u32 indent = format_get_indent (s);
+
+  if (a->debug)
+    {
+      s = format (s, "n_enq %u cq_nb_desc %u", crq->n_enq, crq->cq.nb_desc);
+      s = format (s, "\n%Uaura: id 0x%x count %u limit %u avail %u",
+		  format_white_space, indent,
+		  roc_npa_aura_handle_to_aura (crq->aura_handle),
+		  roc_npa_aura_op_cnt_get (crq->aura_handle),
+		  roc_npa_aura_op_limit_get (crq->aura_handle),
+		  roc_npa_aura_op_available (crq->aura_handle));
+    }
+  return s;
+}
+
+u8 *
+format_oct_txq_info (u8 *s, va_list *args)
+{
+  vnet_dev_format_args_t *a = va_arg (*args, vnet_dev_format_args_t *);
+  vnet_dev_tx_queue_t *txq = va_arg (*args, vnet_dev_tx_queue_t *);
+  oct_txq_t *ctq = vnet_dev_get_tx_queue_data (txq);
+  u32 indent = format_get_indent (s);
+
+  if (a->debug)
+    {
+      s = format (s, "n_enq %u sq_nb_desc %u io_addr %p lmt_addr %p",
+		  ctq->n_enq, ctq->sq.nb_desc, ctq->io_addr, ctq->lmt_addr);
+      s = format (s, "\n%Uaura: id 0x%x count %u limit %u avail %u",
+		  format_white_space, indent,
+		  roc_npa_aura_handle_to_aura (ctq->aura_handle),
+		  roc_npa_aura_op_cnt_get (ctq->aura_handle),
+		  roc_npa_aura_op_limit_get (ctq->aura_handle),
+		  roc_npa_aura_op_available (ctq->aura_handle));
+    }
+
+  return s;
+}