[PATCH v3 17/23] net/cnxk: eswitch VF as ethernet device

[Harman Kalra <hkalra@marvell.com>]

Adding support for eswitch VF to probe as normal cnxk ethernet device

Signed-off-by: Harman Kalra <hkalra@marvell.com>
---
 drivers/net/cnxk/cn10k_ethdev.c    |  1 +
 drivers/net/cnxk/cnxk_ethdev.c     | 41 +++++++++++++++++++++---------
 drivers/net/cnxk/cnxk_ethdev.h     |  3 +++
 drivers/net/cnxk/cnxk_ethdev_ops.c |  4 +++
 drivers/net/cnxk/cnxk_link.c       |  3 ++-
 5 files changed, 39 insertions(+), 13 deletions(-)

diff --git a/drivers/net/cnxk/cn10k_ethdev.c b/drivers/net/cnxk/cn10k_ethdev.c
index a2e943a3d0..9a072b72a7 100644
--- a/drivers/net/cnxk/cn10k_ethdev.c
+++ b/drivers/net/cnxk/cn10k_ethdev.c
@@ -963,6 +963,7 @@ static const struct rte_pci_id cn10k_pci_nix_map[] = {
 	CNXK_PCI_ID(PCI_SUBSYSTEM_DEVID_CN10KB, PCI_DEVID_CNXK_RVU_PF),
 	CNXK_PCI_ID(PCI_SUBSYSTEM_DEVID_CNF10KB, PCI_DEVID_CNXK_RVU_PF),
 	CNXK_PCI_ID(PCI_SUBSYSTEM_DEVID_CN10KA, PCI_DEVID_CNXK_RVU_VF),
+	CNXK_PCI_ID(PCI_SUBSYSTEM_DEVID_CN10KA, PCI_DEVID_CNXK_RVU_ESWITCH_VF),
 	CNXK_PCI_ID(PCI_SUBSYSTEM_DEVID_CN10KAS, PCI_DEVID_CNXK_RVU_VF),
 	CNXK_PCI_ID(PCI_SUBSYSTEM_DEVID_CNF10KA, PCI_DEVID_CNXK_RVU_VF),
 	CNXK_PCI_ID(PCI_SUBSYSTEM_DEVID_CN10KB, PCI_DEVID_CNXK_RVU_VF),
diff --git a/drivers/net/cnxk/cnxk_ethdev.c b/drivers/net/cnxk/cnxk_ethdev.c
index 2372a4e793..ec43de6221 100644
--- a/drivers/net/cnxk/cnxk_ethdev.c
+++ b/drivers/net/cnxk/cnxk_ethdev.c
@@ -390,7 +390,7 @@ nix_update_flow_ctrl_config(struct rte_eth_dev *eth_dev)
 	struct cnxk_fc_cfg *fc = &dev->fc_cfg;
 	struct rte_eth_fc_conf fc_cfg = {0};
 
-	if (roc_nix_is_sdp(&dev->nix))
+	if (roc_nix_is_sdp(&dev->nix) || roc_nix_is_esw(&dev->nix))
 		return 0;
 
 	/* Don't do anything if PFC is enabled */
@@ -1449,12 +1449,14 @@ cnxk_nix_configure(struct rte_eth_dev *eth_dev)
 		goto cq_fini;
 
 	/* Init flow control configuration */
-	fc_cfg.type = ROC_NIX_FC_RXCHAN_CFG;
-	fc_cfg.rxchan_cfg.enable = true;
-	rc = roc_nix_fc_config_set(nix, &fc_cfg);
-	if (rc) {
-		plt_err("Failed to initialize flow control rc=%d", rc);
-		goto cq_fini;
+	if (!roc_nix_is_esw(nix)) {
+		fc_cfg.type = ROC_NIX_FC_RXCHAN_CFG;
+		fc_cfg.rxchan_cfg.enable = true;
+		rc = roc_nix_fc_config_set(nix, &fc_cfg);
+		if (rc) {
+			plt_err("Failed to initialize flow control rc=%d", rc);
+			goto cq_fini;
+		}
 	}
 
 	/* Update flow control configuration to PMD */
@@ -1976,11 +1978,21 @@ cnxk_eth_dev_init(struct rte_eth_dev *eth_dev)
 		TAILQ_INIT(&dev->mcs_list);
 	}
 
-	plt_nix_dbg("Port=%d pf=%d vf=%d ver=%s hwcap=0x%" PRIx64
-		    " rxoffload_capa=0x%" PRIx64 " txoffload_capa=0x%" PRIx64,
-		    eth_dev->data->port_id, roc_nix_get_pf(nix),
-		    roc_nix_get_vf(nix), CNXK_ETH_DEV_PMD_VERSION, dev->hwcap,
-		    dev->rx_offload_capa, dev->tx_offload_capa);
+	/* Reserve a switch domain for eswitch device */
+	if (pci_dev->id.device_id == PCI_DEVID_CNXK_RVU_ESWITCH_VF) {
+		eth_dev->data->dev_flags |= RTE_ETH_DEV_REPRESENTOR;
+		rc = rte_eth_switch_domain_alloc(&dev->switch_domain_id);
+		if (rc) {
+			plt_err("Failed to alloc switch domain: %d", rc);
+			goto free_mac_addrs;
+		}
+	}
+
+	plt_nix_dbg("Port=%d pf=%d vf=%d ver=%s hwcap=0x%" PRIx64 " rxoffload_capa=0x%" PRIx64
+		    " txoffload_capa=0x%" PRIx64,
+		    eth_dev->data->port_id, roc_nix_get_pf(nix), roc_nix_get_vf(nix),
+		    CNXK_ETH_DEV_PMD_VERSION, dev->hwcap, dev->rx_offload_capa,
+		    dev->tx_offload_capa);
 	return 0;
 
 free_mac_addrs:
@@ -2046,6 +2058,11 @@ cnxk_eth_dev_uninit(struct rte_eth_dev *eth_dev, bool reset)
 		}
 	}
 
+	/* Free switch domain ID reserved for eswitch device */
+	if ((eth_dev->data->dev_flags & RTE_ETH_DEV_REPRESENTOR) &&
+	    rte_eth_switch_domain_free(dev->switch_domain_id))
+		plt_err("Failed to free switch domain");
+
 	/* Disable and free rte_meter entries */
 	nix_meter_fini(dev);
 
diff --git a/drivers/net/cnxk/cnxk_ethdev.h b/drivers/net/cnxk/cnxk_ethdev.h
index 4d3ebf123b..d8eba5e1dd 100644
--- a/drivers/net/cnxk/cnxk_ethdev.h
+++ b/drivers/net/cnxk/cnxk_ethdev.h
@@ -424,6 +424,9 @@ struct cnxk_eth_dev {
 	/* MCS device */
 	struct cnxk_mcs_dev *mcs_dev;
 	struct cnxk_macsec_sess_list mcs_list;
+
+	/* Eswitch domain ID */
+	uint16_t switch_domain_id;
 };
 
 struct cnxk_eth_rxq_sp {
diff --git a/drivers/net/cnxk/cnxk_ethdev_ops.c b/drivers/net/cnxk/cnxk_ethdev_ops.c
index 5de2919047..67fbf7c269 100644
--- a/drivers/net/cnxk/cnxk_ethdev_ops.c
+++ b/drivers/net/cnxk/cnxk_ethdev_ops.c
@@ -71,6 +71,10 @@ cnxk_nix_info_get(struct rte_eth_dev *eth_dev, struct rte_eth_dev_info *devinfo)
 			    RTE_ETH_DEV_CAPA_FLOW_RULE_KEEP;
 
 	devinfo->max_rx_mempools = CNXK_NIX_NUM_POOLS_MAX;
+	if (eth_dev->data->dev_flags & RTE_ETH_DEV_REPRESENTOR) {
+		devinfo->switch_info.name = eth_dev->device->name;
+		devinfo->switch_info.domain_id = dev->switch_domain_id;
+	}
 
 	return 0;
 }
diff --git a/drivers/net/cnxk/cnxk_link.c b/drivers/net/cnxk/cnxk_link.c
index 127c9e72e7..903b44de2c 100644
--- a/drivers/net/cnxk/cnxk_link.c
+++ b/drivers/net/cnxk/cnxk_link.c
@@ -13,7 +13,8 @@ cnxk_nix_toggle_flag_link_cfg(struct cnxk_eth_dev *dev, bool set)
 		dev->flags &= ~CNXK_LINK_CFG_IN_PROGRESS_F;
 
 	/* Update link info for LBK */
-	if (!set && (roc_nix_is_lbk(&dev->nix) || roc_nix_is_sdp(&dev->nix))) {
+	if (!set &&
+	    (roc_nix_is_lbk(&dev->nix) || roc_nix_is_sdp(&dev->nix) || roc_nix_is_esw(&dev->nix))) {
 		struct rte_eth_link link;
 
 		link.link_status = RTE_ETH_LINK_UP;
-- 
2.18.0