6 files changed, 44 insertions, 19 deletions
diff --git a/drivers/net/ethernet/intel/Kconfig b/drivers/net/ethernet/intel/Kconfig
index e0287fbd501d..0375c7448a57 100644
--- a/drivers/net/ethernet/intel/Kconfig
+++ b/drivers/net/ethernet/intel/Kconfig
@@ -384,17 +384,6 @@ config IGC_LEDS
 	  Optional support for controlling the NIC LED's with the netdev
 	  LED trigger.
 
-config IDPF
-	tristate "Intel(R) Infrastructure Data Path Function Support"
-	depends on PCI_MSI
-	select DIMLIB
-	select PAGE_POOL
-	select PAGE_POOL_STATS
-	help
-	  This driver supports Intel(R) Infrastructure Data Path Function
-	  devices.
-
-	  To compile this driver as a module, choose M here. The module
-	  will be called idpf.
+source "drivers/net/ethernet/intel/idpf/Kconfig"
 
 endif # NET_VENDOR_INTEL
diff --git a/drivers/net/ethernet/intel/idpf/Kconfig b/drivers/net/ethernet/intel/idpf/Kconfig
new file mode 100644
index 000000000000..9082c16edb7e
--- /dev/null
+++ b/drivers/net/ethernet/intel/idpf/Kconfig
@@ -0,0 +1,27 @@
+# SPDX-License-Identifier: GPL-2.0-only
+# Copyright (C) 2024 Intel Corporation
+
+config IDPF
+	tristate "Intel(R) Infrastructure Data Path Function Support"
+	depends on PCI_MSI
+	select DIMLIB
+	select PAGE_POOL
+	select PAGE_POOL_STATS
+	help
+	  This driver supports Intel(R) Infrastructure Data Path Function
+	  devices.
+
+	  To compile this driver as a module, choose M here. The module
+	  will be called idpf.
+
+if IDPF
+
+config IDPF_SINGLEQ
+	bool "idpf singleq support"
+	help
+	  This option enables support for legacy single Rx/Tx queues w/no
+	  completion and fill queues. Only enable if you have hardware which
+	  wants to work in this mode as it increases the driver size and adds
+	  runtme checks on hotpath.
+
+endif # IDPF
diff --git a/drivers/net/ethernet/intel/idpf/Makefile b/drivers/net/ethernet/intel/idpf/Makefile
index 6844ead2f3ac..2ce01a0b5898 100644
--- a/drivers/net/ethernet/intel/idpf/Makefile
+++ b/drivers/net/ethernet/intel/idpf/Makefile
@@ -12,7 +12,8 @@ idpf-y := \
 	idpf_ethtool.o		\
 	idpf_lib.o		\
 	idpf_main.o		\
-	idpf_singleq_txrx.o	\
 	idpf_txrx.o		\
 	idpf_virtchnl.o 	\
 	idpf_vf_dev.o
+
+idpf-$(CONFIG_IDPF_SINGLEQ)	+= idpf_singleq_txrx.o
diff --git a/drivers/net/ethernet/intel/idpf/idpf.h b/drivers/net/ethernet/intel/idpf/idpf.h
index f9e43d171f17..5d9529f5b41b 100644
--- a/drivers/net/ethernet/intel/idpf/idpf.h
+++ b/drivers/net/ethernet/intel/idpf/idpf.h
@@ -599,7 +599,8 @@ struct idpf_adapter {
  */
 static inline int idpf_is_queue_model_split(u16 q_model)
 {
-	return q_model == VIRTCHNL2_QUEUE_MODEL_SPLIT;
+	return !IS_ENABLED(CONFIG_IDPF_SINGLEQ) ||
+	       q_model == VIRTCHNL2_QUEUE_MODEL_SPLIT;
 }
 
 #define idpf_is_cap_ena(adapter, field, flag) \
diff --git a/drivers/net/ethernet/intel/idpf/idpf_txrx.c b/drivers/net/ethernet/intel/idpf/idpf_txrx.c
index 5dd1b1a9e624..e79a8f9dfc40 100644
--- a/drivers/net/ethernet/intel/idpf/idpf_txrx.c
+++ b/drivers/net/ethernet/intel/idpf/idpf_txrx.c
@@ -1309,7 +1309,7 @@ static void idpf_vport_calc_numq_per_grp(struct idpf_vport *vport,
 static void idpf_rxq_set_descids(const struct idpf_vport *vport,
 				 struct idpf_rx_queue *q)
 {
-	if (vport->rxq_model == VIRTCHNL2_QUEUE_MODEL_SPLIT) {
+	if (idpf_is_queue_model_split(vport->rxq_model)) {
 		q->rxdids = VIRTCHNL2_RXDID_2_FLEX_SPLITQ_M;
 	} else {
 		if (vport->base_rxd)
diff --git a/drivers/net/ethernet/intel/idpf/idpf_virtchnl.c b/drivers/net/ethernet/intel/idpf/idpf_virtchnl.c
index 44602b87cd41..1aa4770dfe18 100644
--- a/drivers/net/ethernet/intel/idpf/idpf_virtchnl.c
+++ b/drivers/net/ethernet/intel/idpf/idpf_virtchnl.c
@@ -1256,12 +1256,12 @@ int idpf_send_create_vport_msg(struct idpf_adapter *adapter,
 	vport_msg->vport_type = cpu_to_le16(VIRTCHNL2_VPORT_TYPE_DEFAULT);
 	vport_msg->vport_index = cpu_to_le16(idx);
 
-	if (adapter->req_tx_splitq)
+	if (adapter->req_tx_splitq || !IS_ENABLED(CONFIG_IDPF_SINGLEQ))
 		vport_msg->txq_model = cpu_to_le16(VIRTCHNL2_QUEUE_MODEL_SPLIT);
 	else
 		vport_msg->txq_model = cpu_to_le16(VIRTCHNL2_QUEUE_MODEL_SINGLE);
 
-	if (adapter->req_rx_splitq)
+	if (adapter->req_rx_splitq || !IS_ENABLED(CONFIG_IDPF_SINGLEQ))
 		vport_msg->rxq_model = cpu_to_le16(VIRTCHNL2_QUEUE_MODEL_SPLIT);
 	else
 		vport_msg->rxq_model = cpu_to_le16(VIRTCHNL2_QUEUE_MODEL_SINGLE);
@@ -1323,10 +1323,17 @@ int idpf_check_supported_desc_ids(struct idpf_vport *vport)
 
 	vport_msg = adapter->vport_params_recvd[vport->idx];
 
+	if (!IS_ENABLED(CONFIG_IDPF_SINGLEQ) &&
+	    (vport_msg->rxq_model == VIRTCHNL2_QUEUE_MODEL_SINGLE ||
+	     vport_msg->txq_model == VIRTCHNL2_QUEUE_MODEL_SINGLE)) {
+		pci_err(adapter->pdev, "singleq mode requested, but not compiled-in\n");
+		return -EOPNOTSUPP;
+	}
+
 	rx_desc_ids = le64_to_cpu(vport_msg->rx_desc_ids);
 	tx_desc_ids = le64_to_cpu(vport_msg->tx_desc_ids);
 
-	if (vport->rxq_model == VIRTCHNL2_QUEUE_MODEL_SPLIT) {
+	if (idpf_is_queue_model_split(vport->rxq_model)) {
 		if (!(rx_desc_ids & VIRTCHNL2_RXDID_2_FLEX_SPLITQ_M)) {
 			dev_info(&adapter->pdev->dev, "Minimum RX descriptor support not provided, using the default\n");
 			vport_msg->rx_desc_ids = cpu_to_le64(VIRTCHNL2_RXDID_2_FLEX_SPLITQ_M);
@@ -1336,7 +1343,7 @@ int idpf_check_supported_desc_ids(struct idpf_vport *vport)
 			vport->base_rxd = true;
 	}
 
-	if (vport->txq_model != VIRTCHNL2_QUEUE_MODEL_SPLIT)
+	if (!idpf_is_queue_model_split(vport->txq_model))
 		return 0;
 
 	if ((tx_desc_ids & MIN_SUPPORT_TXDID) != MIN_SUPPORT_TXDID) {