[PATCH v2] net/idpf: add VF support

[beilei.xing@intel.com]

From: Beilei Xing <beilei.xing@intel.com>

Support VF whose device id is 0x145c.

Signed-off-by: Beilei Xing <beilei.xing@intel.com>
---

v2 change:
 - Rebase code based on new patchset:
   https://patches.dpdk.org/project/dpdk/cover/20230404124112.71703-1-beilei.xing@intel.com/

 drivers/net/idpf/idpf_ethdev.c | 89 ++++++++++++++++++++++++++++++----
 drivers/net/idpf/idpf_ethdev.h |  2 +
 2 files changed, 81 insertions(+), 10 deletions(-)

diff --git a/drivers/net/idpf/idpf_ethdev.c b/drivers/net/idpf/idpf_ethdev.c
index 18c152b598..b4364bbb08 100644
--- a/drivers/net/idpf/idpf_ethdev.c
+++ b/drivers/net/idpf/idpf_ethdev.c
@@ -1078,6 +1078,7 @@ idpf_handle_virtchnl_msg(struct idpf_adapter_ext *adapter_ex)
 
 		switch (mbx_op) {
 		case idpf_mbq_opc_send_msg_to_peer_pf:
+		case idpf_mbq_opc_send_msg_to_peer_drv:
 			if (vc_op == VIRTCHNL2_OP_EVENT) {
 				if (ctlq_msg.data_len < sizeof(struct virtchnl2_event)) {
 					PMD_DRV_LOG(ERR, "Error event");
@@ -1128,6 +1129,23 @@ idpf_dev_alarm_handler(void *param)
 	rte_eal_alarm_set(IDPF_ALARM_INTERVAL, idpf_dev_alarm_handler, adapter);
 }
 
+static int
+idpf_hw_vf_reset_check(struct idpf_hw *hw)
+{
+	uint32_t reg;
+	int i;
+
+	for (i = 0; i < IDPF_RESET_WAIT_CNT; i++) {
+		reg = IDPF_READ_REG(hw, VFGEN_RSTAT);
+		if (reg != 0xFFFFFFFF && (reg & VFGEN_RSTAT_VFR_STATE_M))
+			return 0;
+		rte_delay_ms(1000);
+	}
+
+	PMD_INIT_LOG(ERR, "VF reset timeout");
+	return -EBUSY;
+}
+
 static struct idpf_ctlq_create_info idpf_ctlq_info[IDPF_CTLQ_NUM] = {
 	{
 		.type = IDPF_CTLQ_TYPE_MAILBOX_TX,
@@ -1201,6 +1219,41 @@ static struct virtchnl2_get_capabilities req_caps = {
 	.other_caps = VIRTCHNL2_CAP_WB_ON_ITR
 };
 
+struct idpf_ctlq_create_info vf_ctlq_info[IDPF_CTLQ_NUM] = {
+	{
+		.type = IDPF_CTLQ_TYPE_MAILBOX_TX,
+		.id = IDPF_CTLQ_ID,
+		.len = IDPF_CTLQ_LEN,
+		.buf_size = IDPF_DFLT_MBX_BUF_SIZE,
+		.reg = {
+			.head = VF_ATQH,
+			.tail = VF_ATQT,
+			.len = VF_ATQLEN,
+			.bah = VF_ATQBAH,
+			.bal = VF_ATQBAL,
+			.len_mask = VF_ATQLEN_ATQLEN_M,
+			.len_ena_mask = VF_ATQLEN_ATQENABLE_M,
+			.head_mask = VF_ATQH_ATQH_M,
+		}
+	},
+	{
+		.type = IDPF_CTLQ_TYPE_MAILBOX_RX,
+		.id = IDPF_CTLQ_ID,
+		.len = IDPF_CTLQ_LEN,
+		.buf_size = IDPF_DFLT_MBX_BUF_SIZE,
+		.reg = {
+			.head = VF_ARQH,
+			.tail = VF_ARQT,
+			.len = VF_ARQLEN,
+			.bah = VF_ARQBAH,
+			.bal = VF_ARQBAL,
+			.len_mask = VF_ARQLEN_ARQLEN_M,
+			.len_ena_mask = VF_ARQLEN_ARQENABLE_M,
+			.head_mask = VF_ARQH_ARQH_M,
+		}
+	}
+};
+
 static int
 idpf_adapter_ext_init(struct rte_pci_device *pci_dev, struct idpf_adapter_ext *adapter)
 {
@@ -1217,17 +1270,32 @@ idpf_adapter_ext_init(struct rte_pci_device *pci_dev, struct idpf_adapter_ext *a
 
 	strncpy(adapter->name, pci_dev->device.name, PCI_PRI_STR_SIZE);
 
-	idpf_hw_pf_reset(hw);
-	ret = idpf_hw_pf_reset_check(hw);
-	if (ret != 0) {
-		PMD_INIT_LOG(ERR, "PF is still resetting");
-		goto err_reset_check;
-	}
+	if (hw->device_id == IDPF_DEV_ID_PF) {
+		idpf_hw_pf_reset(hw);
+		ret = idpf_hw_pf_reset_check(hw);
+		if (ret != 0) {
+			PMD_INIT_LOG(ERR, "PF is still resetting");
+			goto err_reset_check;
+		}
+
+		ret = idpf_hw_mbx_init(hw, idpf_ctlq_info);
+		if (ret != 0) {
+			PMD_INIT_LOG(ERR, "Failed to init mailbox");
+			goto err_reset_check;
+		}
+	} else if (hw->device_id == IDPF_DEV_ID_VF) {
+		ret = idpf_hw_vf_reset_check(hw);
+		if (ret != 0) {
+			PMD_INIT_LOG(ERR, "VF is still resetting");
+			goto err_reset_check;
+		}
+
+		ret = idpf_hw_mbx_init(hw, vf_ctlq_info);
+		if (ret != 0) {
+			PMD_INIT_LOG(ERR, "Failed to init mailbox");
+			goto err_reset_check;
+		}
 
-	ret = idpf_hw_mbx_init(hw, idpf_ctlq_info);
-	if (ret != 0) {
-		PMD_INIT_LOG(ERR, "Failed to init mailbox");
-		goto err_reset_check;
 	}
 
 	rte_memcpy(&base->caps, &req_caps, sizeof(struct virtchnl2_get_capabilities));
@@ -1369,6 +1437,7 @@ idpf_dev_vport_init(struct rte_eth_dev *dev, void *init_params)
 
 static const struct rte_pci_id pci_id_idpf_map[] = {
 	{ RTE_PCI_DEVICE(IDPF_INTEL_VENDOR_ID, IDPF_DEV_ID_PF) },
+	{ RTE_PCI_DEVICE(IDPF_INTEL_VENDOR_ID, IDPF_DEV_ID_SRIOV) },
 	{ .vendor_id = 0, /* sentinel */ },
 };
 
diff --git a/drivers/net/idpf/idpf_ethdev.h b/drivers/net/idpf/idpf_ethdev.h
index 3c2c932438..030f1470e2 100644
--- a/drivers/net/idpf/idpf_ethdev.h
+++ b/drivers/net/idpf/idpf_ethdev.h
@@ -20,6 +20,8 @@
 #include <base/idpf_prototype.h>
 #include <base/virtchnl2.h>
 
+#define IDPF_DEV_ID_SRIOV	0x145c
+
 #define IDPF_MAX_VPORT_NUM	8
 
 #define IDPF_INVALID_VPORT_IDX	0xffff
-- 
2.26.2