linux/drivers/scsi/qla4xxx/ql4_isr.c

// SPDX-License-Identifier: GPL-2.0-only
/*
 * QLogic iSCSI HBA Driver
 * Copyright (c)  2003-2013 QLogic Corporation
 */

#include "ql4_def.h"
#include "ql4_glbl.h"
#include "ql4_dbg.h"
#include "ql4_inline.h"

/**
 * qla4xxx_copy_sense - copy sense data	into cmd sense buffer
 * @ha: Pointer to host adapter structure.
 * @sts_entry: Pointer to status entry structure.
 * @srb: Pointer to srb structure.
 **/
static void qla4xxx_copy_sense(struct scsi_qla_host *ha,
                               struct status_entry *sts_entry,
                               struct srb *srb)
{ … }

/**
 * qla4xxx_status_cont_entry - Process a Status Continuations entry.
 * @ha: SCSI driver HA context
 * @sts_cont: Entry pointer
 *
 * Extended sense data.
 */
static void
qla4xxx_status_cont_entry(struct scsi_qla_host *ha,
			  struct status_cont_entry *sts_cont)
{ … }

/**
 * qla4xxx_status_entry - processes status IOCBs
 * @ha: Pointer to host adapter structure.
 * @sts_entry: Pointer to status entry structure.
 **/
static void qla4xxx_status_entry(struct scsi_qla_host *ha,
				 struct status_entry *sts_entry)
{ … }

/**
 * qla4xxx_passthru_status_entry - processes passthru status IOCBs (0x3C)
 * @ha: Pointer to host adapter structure.
 * @sts_entry: Pointer to status entry structure.
 **/
static void qla4xxx_passthru_status_entry(struct scsi_qla_host *ha,
					  struct passthru_status *sts_entry)
{ … }

static struct mrb *qla4xxx_del_mrb_from_active_array(struct scsi_qla_host *ha,
						     uint32_t index)
{ … }

static void qla4xxx_mbox_status_entry(struct scsi_qla_host *ha,
				      struct mbox_status_iocb *mbox_sts_entry)
{ … }

/**
 * qla4xxx_process_response_queue - process response queue completions
 * @ha: Pointer to host adapter structure.
 *
 * This routine process response queue completions in interrupt context.
 * Hardware_lock locked upon entry
 **/
void qla4xxx_process_response_queue(struct scsi_qla_host *ha)
{ … }

/**
 * qla4_83xx_loopback_in_progress: Is loopback in progress?
 * @ha: Pointer to host adapter structure.
 * returns: 1 = loopback in progress, 0 = loopback not in progress
 **/
static int qla4_83xx_loopback_in_progress(struct scsi_qla_host *ha)
{ … }

static void qla4xxx_update_ipaddr_state(struct scsi_qla_host *ha,
					uint32_t ipaddr_idx,
					uint32_t ipaddr_fw_state)
{ … }

static void qla4xxx_default_router_changed(struct scsi_qla_host *ha,
					   uint32_t *mbox_sts)
{ … }

/**
 * qla4xxx_isr_decode_mailbox - decodes mailbox status
 * @ha: Pointer to host adapter structure.
 * @mbox_status: Mailbox status.
 *
 * This routine decodes the mailbox status during the ISR.
 * Hardware_lock locked upon entry. runs in interrupt context.
 **/
static void qla4xxx_isr_decode_mailbox(struct scsi_qla_host * ha,
				       uint32_t mbox_status)
{ … }

void qla4_83xx_interrupt_service_routine(struct scsi_qla_host *ha,
					 uint32_t intr_status)
{ … }

/**
 * qla4_82xx_interrupt_service_routine - isr
 * @ha: pointer to host adapter structure.
 * @intr_status: Local interrupt status/type.
 *
 * This is the main interrupt service routine.
 * hardware_lock locked upon entry. runs in interrupt context.
 **/
void qla4_82xx_interrupt_service_routine(struct scsi_qla_host *ha,
    uint32_t intr_status)
{ … }

/**
 * qla4xxx_interrupt_service_routine - isr
 * @ha: pointer to host adapter structure.
 * @intr_status: Local interrupt status/type.
 *
 * This is the main interrupt service routine.
 * hardware_lock locked upon entry. runs in interrupt context.
 **/
void qla4xxx_interrupt_service_routine(struct scsi_qla_host * ha,
				       uint32_t intr_status)
{ … }

/**
 * qla4_82xx_spurious_interrupt - processes spurious interrupt
 * @ha: pointer to host adapter structure.
 * @reqs_count: .
 *
 **/
static void qla4_82xx_spurious_interrupt(struct scsi_qla_host *ha,
    uint8_t reqs_count)
{ … }

/**
 * qla4xxx_intr_handler - hardware interrupt handler.
 * @irq: Unused
 * @dev_id: Pointer to host adapter structure
 **/
irqreturn_t qla4xxx_intr_handler(int irq, void *dev_id)
{ … }

/**
 * qla4_82xx_intr_handler - hardware interrupt handler.
 * @irq: Unused
 * @dev_id: Pointer to host adapter structure
 **/
irqreturn_t qla4_82xx_intr_handler(int irq, void *dev_id)
{ … }

#define LEG_INT_PTR_B31 …
#define LEG_INT_PTR_B30 …
#define PF_BITS_MASK …

/**
 * qla4_83xx_intr_handler - hardware interrupt handler.
 * @irq: Unused
 * @dev_id: Pointer to host adapter structure
 **/
irqreturn_t qla4_83xx_intr_handler(int irq, void *dev_id)
{ … }

irqreturn_t
qla4_8xxx_msi_handler(int irq, void *dev_id)
{ … }

static irqreturn_t qla4_83xx_mailbox_intr_handler(int irq, void *dev_id)
{ … }

/**
 * qla4_8xxx_default_intr_handler - hardware interrupt handler.
 * @irq: Unused
 * @dev_id: Pointer to host adapter structure
 *
 * This interrupt handler is called directly for MSI-X, and
 * called indirectly for MSI.
 **/
irqreturn_t
qla4_8xxx_default_intr_handler(int irq, void *dev_id)
{ … }

irqreturn_t
qla4_8xxx_msix_rsp_q(int irq, void *dev_id)
{ … }

/**
 * qla4xxx_process_aen - processes AENs generated by firmware
 * @ha: pointer to host adapter structure.
 * @process_aen: type of AENs to process
 *
 * Processes specific types of Asynchronous Events generated by firmware.
 * The type of AENs to process is specified by process_aen and can be
 *	PROCESS_ALL_AENS	 0
 *	FLUSH_DDB_CHANGED_AENS	 1
 *	RELOGIN_DDB_CHANGED_AENS 2
 **/
void qla4xxx_process_aen(struct scsi_qla_host * ha, uint8_t process_aen)
{ … }

int qla4xxx_request_irqs(struct scsi_qla_host *ha)
{ … }

void qla4xxx_free_irqs(struct scsi_qla_host *ha)
{ … }