1 files changed, 0 insertions, 301 deletions

diff --git a/drivers/crypto/qat/qat_common/adf_vf_isr.c b/drivers/crypto/qat/qat_common/adf_vf_isr.c
deleted file mode 100644
index 888388acb6bd..000000000000
--- a/drivers/crypto/qat/qat_common/adf_vf_isr.c
+++ /dev/null
@@ -1,301 +0,0 @@
-// SPDX-License-Identifier: (BSD-3-Clause OR GPL-2.0-only)
-/* Copyright(c) 2014 - 2020 Intel Corporation */
-#include <linux/kernel.h>
-#include <linux/init.h>
-#include <linux/types.h>
-#include <linux/pci.h>
-#include <linux/slab.h>
-#include <linux/errno.h>
-#include <linux/interrupt.h>
-#include <linux/workqueue.h>
-#include "adf_accel_devices.h"
-#include "adf_common_drv.h"
-#include "adf_cfg.h"
-#include "adf_cfg_strings.h"
-#include "adf_cfg_common.h"
-#include "adf_transport_access_macros.h"
-#include "adf_transport_internal.h"
-#include "adf_pf2vf_msg.h"
-
-#define ADF_VINTSOU_OFFSET	0x204
-#define ADF_VINTSOU_BUN		BIT(0)
-#define ADF_VINTSOU_PF2VF	BIT(1)
-
-static struct workqueue_struct *adf_vf_stop_wq;
-
-struct adf_vf_stop_data {
-	struct adf_accel_dev *accel_dev;
-	struct work_struct work;
-};
-
-static int adf_enable_msi(struct adf_accel_dev *accel_dev)
-{
-	struct adf_accel_pci *pci_dev_info = &accel_dev->accel_pci_dev;
-	int stat = pci_enable_msi(pci_dev_info->pci_dev);
-
-	if (stat) {
-		dev_err(&GET_DEV(accel_dev),
-			"Failed to enable MSI interrupts\n");
-		return stat;
-	}
-
-	accel_dev->vf.irq_name = kzalloc(ADF_MAX_MSIX_VECTOR_NAME, GFP_KERNEL);
-	if (!accel_dev->vf.irq_name)
-		return -ENOMEM;
-
-	return stat;
-}
-
-static void adf_disable_msi(struct adf_accel_dev *accel_dev)
-{
-	struct pci_dev *pdev = accel_to_pci_dev(accel_dev);
-
-	kfree(accel_dev->vf.irq_name);
-	pci_disable_msi(pdev);
-}
-
-static void adf_dev_stop_async(struct work_struct *work)
-{
-	struct adf_vf_stop_data *stop_data =
-		container_of(work, struct adf_vf_stop_data, work);
-	struct adf_accel_dev *accel_dev = stop_data->accel_dev;
-
-	adf_dev_stop(accel_dev);
-	adf_dev_shutdown(accel_dev);
-
-	/* Re-enable PF2VF interrupts */
-	adf_enable_pf2vf_interrupts(accel_dev);
-	kfree(stop_data);
-}
-
-static void adf_pf2vf_bh_handler(void *data)
-{
-	struct adf_accel_dev *accel_dev = data;
-	struct adf_hw_device_data *hw_data = accel_dev->hw_device;
-	struct adf_bar *pmisc =
-			&GET_BARS(accel_dev)[hw_data->get_misc_bar_id(hw_data)];
-	void __iomem *pmisc_bar_addr = pmisc->virt_addr;
-	u32 msg;
-
-	/* Read the message from PF */
-	msg = ADF_CSR_RD(pmisc_bar_addr, hw_data->get_pf2vf_offset(0));
-
-	if (!(msg & ADF_PF2VF_MSGORIGIN_SYSTEM))
-		/* Ignore legacy non-system (non-kernel) PF2VF messages */
-		goto err;
-
-	switch ((msg & ADF_PF2VF_MSGTYPE_MASK) >> ADF_PF2VF_MSGTYPE_SHIFT) {
-	case ADF_PF2VF_MSGTYPE_RESTARTING: {
-		struct adf_vf_stop_data *stop_data;
-
-		dev_dbg(&GET_DEV(accel_dev),
-			"Restarting msg received from PF 0x%x\n", msg);
-
-		clear_bit(ADF_STATUS_PF_RUNNING, &accel_dev->status);
-
-		stop_data = kzalloc(sizeof(*stop_data), GFP_ATOMIC);
-		if (!stop_data) {
-			dev_err(&GET_DEV(accel_dev),
-				"Couldn't schedule stop for vf_%d\n",
-				accel_dev->accel_id);
-			return;
-		}
-		stop_data->accel_dev = accel_dev;
-		INIT_WORK(&stop_data->work, adf_dev_stop_async);
-		queue_work(adf_vf_stop_wq, &stop_data->work);
-		/* To ack, clear the PF2VFINT bit */
-		msg &= ~ADF_PF2VF_INT;
-		ADF_CSR_WR(pmisc_bar_addr, hw_data->get_pf2vf_offset(0), msg);
-		return;
-	}
-	case ADF_PF2VF_MSGTYPE_VERSION_RESP:
-		dev_dbg(&GET_DEV(accel_dev),
-			"Version resp received from PF 0x%x\n", msg);
-		accel_dev->vf.pf_version =
-			(msg & ADF_PF2VF_VERSION_RESP_VERS_MASK) >>
-			ADF_PF2VF_VERSION_RESP_VERS_SHIFT;
-		accel_dev->vf.compatible =
-			(msg & ADF_PF2VF_VERSION_RESP_RESULT_MASK) >>
-			ADF_PF2VF_VERSION_RESP_RESULT_SHIFT;
-		complete(&accel_dev->vf.iov_msg_completion);
-		break;
-	default:
-		goto err;
-	}
-
-	/* To ack, clear the PF2VFINT bit */
-	msg &= ~ADF_PF2VF_INT;
-	ADF_CSR_WR(pmisc_bar_addr, hw_data->get_pf2vf_offset(0), msg);
-
-	/* Re-enable PF2VF interrupts */
-	adf_enable_pf2vf_interrupts(accel_dev);
-	return;
-err:
-	dev_err(&GET_DEV(accel_dev),
-		"Unknown message from PF (0x%x); leaving PF2VF ints disabled\n",
-		msg);
-}
-
-static int adf_setup_pf2vf_bh(struct adf_accel_dev *accel_dev)
-{
-	tasklet_init(&accel_dev->vf.pf2vf_bh_tasklet,
-		     (void *)adf_pf2vf_bh_handler, (unsigned long)accel_dev);
-
-	mutex_init(&accel_dev->vf.vf2pf_lock);
-	return 0;
-}
-
-static void adf_cleanup_pf2vf_bh(struct adf_accel_dev *accel_dev)
-{
-	tasklet_disable(&accel_dev->vf.pf2vf_bh_tasklet);
-	tasklet_kill(&accel_dev->vf.pf2vf_bh_tasklet);
-	mutex_destroy(&accel_dev->vf.vf2pf_lock);
-}
-
-static irqreturn_t adf_isr(int irq, void *privdata)
-{
-	struct adf_accel_dev *accel_dev = privdata;
-	struct adf_hw_device_data *hw_data = accel_dev->hw_device;
-	struct adf_hw_csr_ops *csr_ops = &hw_data->csr_ops;
-	struct adf_bar *pmisc =
-			&GET_BARS(accel_dev)[hw_data->get_misc_bar_id(hw_data)];
-	void __iomem *pmisc_bar_addr = pmisc->virt_addr;
-	u32 v_int;
-
-	/* Read VF INT source CSR to determine the source of VF interrupt */
-	v_int = ADF_CSR_RD(pmisc_bar_addr, ADF_VINTSOU_OFFSET);
-
-	/* Check for PF2VF interrupt */
-	if (v_int & ADF_VINTSOU_PF2VF) {
-		/* Disable PF to VF interrupt */
-		adf_disable_pf2vf_interrupts(accel_dev);
-
-		/* Schedule tasklet to handle interrupt BH */
-		tasklet_hi_schedule(&accel_dev->vf.pf2vf_bh_tasklet);
-		return IRQ_HANDLED;
-	}
-
-	/* Check bundle interrupt */
-	if (v_int & ADF_VINTSOU_BUN) {
-		struct adf_etr_data *etr_data = accel_dev->transport;
-		struct adf_etr_bank_data *bank = &etr_data->banks[0];
-
-		/* Disable Flag and Coalesce Ring Interrupts */
-		csr_ops->write_csr_int_flag_and_col(bank->csr_addr,
-						    bank->bank_number, 0);
-		tasklet_hi_schedule(&bank->resp_handler);
-		return IRQ_HANDLED;
-	}
-
-	return IRQ_NONE;
-}
-
-static int adf_request_msi_irq(struct adf_accel_dev *accel_dev)
-{
-	struct pci_dev *pdev = accel_to_pci_dev(accel_dev);
-	unsigned int cpu;
-	int ret;
-
-	snprintf(accel_dev->vf.irq_name, ADF_MAX_MSIX_VECTOR_NAME,
-		 "qat_%02x:%02d.%02d", pdev->bus->number, PCI_SLOT(pdev->devfn),
-		 PCI_FUNC(pdev->devfn));
-	ret = request_irq(pdev->irq, adf_isr, 0, accel_dev->vf.irq_name,
-			  (void *)accel_dev);
-	if (ret) {
-		dev_err(&GET_DEV(accel_dev), "failed to enable irq for %s\n",
-			accel_dev->vf.irq_name);
-		return ret;
-	}
-	cpu = accel_dev->accel_id % num_online_cpus();
-	irq_set_affinity_hint(pdev->irq, get_cpu_mask(cpu));
-
-	return ret;
-}
-
-static int adf_setup_bh(struct adf_accel_dev *accel_dev)
-{
-	struct adf_etr_data *priv_data = accel_dev->transport;
-
-	tasklet_init(&priv_data->banks[0].resp_handler, adf_response_handler,
-		     (unsigned long)priv_data->banks);
-	return 0;
-}
-
-static void adf_cleanup_bh(struct adf_accel_dev *accel_dev)
-{
-	struct adf_etr_data *priv_data = accel_dev->transport;
-
-	tasklet_disable(&priv_data->banks[0].resp_handler);
-	tasklet_kill(&priv_data->banks[0].resp_handler);
-}
-
-/**
- * adf_vf_isr_resource_free() - Free IRQ for acceleration device
- * @accel_dev:  Pointer to acceleration device.
- *
- * Function frees interrupts for acceleration device virtual function.
- */
-void adf_vf_isr_resource_free(struct adf_accel_dev *accel_dev)
-{
-	struct pci_dev *pdev = accel_to_pci_dev(accel_dev);
-
-	irq_set_affinity_hint(pdev->irq, NULL);
-	free_irq(pdev->irq, (void *)accel_dev);
-	adf_cleanup_bh(accel_dev);
-	adf_cleanup_pf2vf_bh(accel_dev);
-	adf_disable_msi(accel_dev);
-}
-EXPORT_SYMBOL_GPL(adf_vf_isr_resource_free);
-
-/**
- * adf_vf_isr_resource_alloc() - Allocate IRQ for acceleration device
- * @accel_dev:  Pointer to acceleration device.
- *
- * Function allocates interrupts for acceleration device virtual function.
- *
- * Return: 0 on success, error code otherwise.
- */
-int adf_vf_isr_resource_alloc(struct adf_accel_dev *accel_dev)
-{
-	if (adf_enable_msi(accel_dev))
-		goto err_out;
-
-	if (adf_setup_pf2vf_bh(accel_dev))
-		goto err_disable_msi;
-
-	if (adf_setup_bh(accel_dev))
-		goto err_cleanup_pf2vf_bh;
-
-	if (adf_request_msi_irq(accel_dev))
-		goto err_cleanup_bh;
-
-	return 0;
-
-err_cleanup_bh:
-	adf_cleanup_bh(accel_dev);
-
-err_cleanup_pf2vf_bh:
-	adf_cleanup_pf2vf_bh(accel_dev);
-
-err_disable_msi:
-	adf_disable_msi(accel_dev);
-
-err_out:
-	return -EFAULT;
-}
-EXPORT_SYMBOL_GPL(adf_vf_isr_resource_alloc);
-
-int __init adf_init_vf_wq(void)
-{
-	adf_vf_stop_wq = alloc_workqueue("adf_vf_stop_wq", WQ_MEM_RECLAIM, 0);
-
-	return !adf_vf_stop_wq ? -EFAULT : 0;
-}
-
-void adf_exit_vf_wq(void)
-{
-	if (adf_vf_stop_wq)
-		destroy_workqueue(adf_vf_stop_wq);
-
-	adf_vf_stop_wq = NULL;
-}