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qla2xxx: Collect PCI register checks and board_disable scheduling 

Add an uint16_t variant of qla2x00_check_reg_for_disconnect and use
these routines to check and schedule a PCI-disconnected board from a
centralized place.

Signed-off-by: Joe Lawrence <joe.lawrence@stratus.com>
Acked-by: Chad Dupuis <chad.dupuis@qlogic.com>
Signed-off-by: Christoph Hellwig <hch@lst.de>
This commit is contained in:
Joe Lawrence 2014-08-26 17:11:41 -04:00 committed by Christoph Hellwig
parent 1a2fbf185c
commit c821e0d5b2
5 changed files with 20 additions and 27 deletions
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3
drivers/scsi/qla2xxx/qla_gbl.h
View File

@ -475,7 +475,8 @@ extern uint8_t *qla25xx_read_nvram_data(scsi_qla_host_t *, uint8_t *, uint32_t,
extern int qla25xx_write_nvram_data(scsi_qla_host_t *, uint8_t *, uint32_t,
uint32_t);
extern int qla2x00_is_a_vp_did(scsi_qla_host_t *, uint32_t);
bool qla2x00_check_reg_for_disconnect(scsi_qla_host_t *, uint32_t);
bool qla2x00_check_reg32_for_disconnect(scsi_qla_host_t *, uint32_t);
bool qla2x00_check_reg16_for_disconnect(scsi_qla_host_t *, uint16_t);
extern int qla2x00_beacon_on(struct scsi_qla_host *);
extern int qla2x00_beacon_off(struct scsi_qla_host *);

28
drivers/scsi/qla2xxx/qla_isr.c
View File

@ -56,16 +56,8 @@ qla2100_intr_handler(int irq, void *dev_id)
vha = pci_get_drvdata(ha->pdev);
for (iter = 50; iter--; ) {
hccr = RD_REG_WORD(&reg->hccr);
/* Check for PCI disconnection */
if (hccr == 0xffff) {
/*
* Schedule this on the default system workqueue so that
* all the adapter workqueues and the DPC thread can be
* shutdown cleanly.
*/
schedule_work(&ha->board_disable);
if (qla2x00_check_reg16_for_disconnect(vha, hccr))
break;
}
if (hccr & HCCR_RISC_PAUSE) {
if (pci_channel_offline(ha->pdev))
break;
@ -121,7 +113,7 @@ qla2100_intr_handler(int irq, void *dev_id)
}
bool
qla2x00_check_reg_for_disconnect(scsi_qla_host_t *vha, uint32_t reg)
qla2x00_check_reg32_for_disconnect(scsi_qla_host_t *vha, uint32_t reg)
{
/* Check for PCI disconnection */
if (reg == 0xffffffff) {
@ -136,6 +128,12 @@ qla2x00_check_reg_for_disconnect(scsi_qla_host_t *vha, uint32_t reg)
return false;
}
bool
qla2x00_check_reg16_for_disconnect(scsi_qla_host_t *vha, uint16_t reg)
{
return qla2x00_check_reg32_for_disconnect(vha, 0xffff0000 | reg);
}
/**
* qla2300_intr_handler() - Process interrupts for the ISP23xx and ISP63xx.
* @irq:
@ -174,7 +172,7 @@ qla2300_intr_handler(int irq, void *dev_id)
vha = pci_get_drvdata(ha->pdev);
for (iter = 50; iter--; ) {
stat = RD_REG_DWORD(&reg->u.isp2300.host_status);
if (qla2x00_check_reg_for_disconnect(vha, stat))
if (qla2x00_check_reg32_for_disconnect(vha, stat))
break;
if (stat & HSR_RISC_PAUSED) {
if (unlikely(pci_channel_offline(ha->pdev)))
@ -2631,7 +2629,7 @@ qla24xx_intr_handler(int irq, void *dev_id)
vha = pci_get_drvdata(ha->pdev);
for (iter = 50; iter--; ) {
stat = RD_REG_DWORD(&reg->host_status);
if (qla2x00_check_reg_for_disconnect(vha, stat))
if (qla2x00_check_reg32_for_disconnect(vha, stat))
break;
if (stat & HSRX_RISC_PAUSED) {
if (unlikely(pci_channel_offline(ha->pdev)))
@ -2721,7 +2719,7 @@ qla24xx_msix_rsp_q(int irq, void *dev_id)
* we process the response queue.
*/
stat = RD_REG_DWORD(&reg->host_status);
if (qla2x00_check_reg_for_disconnect(vha, stat))
if (qla2x00_check_reg32_for_disconnect(vha, stat))
goto out;
qla24xx_process_response_queue(vha, rsp);
if (!ha->flags.disable_msix_handshake) {
@ -2761,7 +2759,7 @@ qla25xx_msix_rsp_q(int irq, void *dev_id)
hccr = RD_REG_DWORD_RELAXED(&reg->hccr);
spin_unlock_irqrestore(&ha->hardware_lock, flags);
}
if (qla2x00_check_reg_for_disconnect(vha, hccr))
if (qla2x00_check_reg32_for_disconnect(vha, hccr))
goto out;
queue_work_on((int) (rsp->id - 1), ha->wq, &rsp->q_work);
@ -2796,7 +2794,7 @@ qla24xx_msix_default(int irq, void *dev_id)
vha = pci_get_drvdata(ha->pdev);
do {
stat = RD_REG_DWORD(&reg->host_status);
if (qla2x00_check_reg_for_disconnect(vha, stat))
if (qla2x00_check_reg32_for_disconnect(vha, stat))
break;
if (stat & HSRX_RISC_PAUSED) {
if (unlikely(pci_channel_offline(ha->pdev)))

2
drivers/scsi/qla2xxx/qla_mr.c
View File

@ -2924,7 +2924,7 @@ qlafx00_intr_handler(int irq, void *dev_id)
vha = pci_get_drvdata(ha->pdev);
for (iter = 50; iter--; clr_intr = 0) {
stat = QLAFX00_RD_INTR_REG(ha);
if (qla2x00_check_reg_for_disconnect(vha, stat))
if (qla2x00_check_reg32_for_disconnect(vha, stat))
break;
intr_stat = stat & QLAFX00_HST_INT_STS_BITS;
if (!intr_stat)

6
drivers/scsi/qla2xxx/qla_nx.c
View File

@ -2123,7 +2123,7 @@ qla82xx_msix_default(int irq, void *dev_id)
vha = pci_get_drvdata(ha->pdev);
do {
host_int = RD_REG_DWORD(&reg->host_int);
if (qla2x00_check_reg_for_disconnect(vha, host_int))
if (qla2x00_check_reg32_for_disconnect(vha, host_int))
break;
if (host_int) {
stat = RD_REG_DWORD(&reg->host_status);
@ -2184,7 +2184,7 @@ qla82xx_msix_rsp_q(int irq, void *dev_id)
spin_lock_irqsave(&ha->hardware_lock, flags);
vha = pci_get_drvdata(ha->pdev);
host_int = RD_REG_DWORD(&reg->host_int);
if (qla2x00_check_reg_for_disconnect(vha, host_int))
if (qla2x00_check_reg32_for_disconnect(vha, host_int))
goto out;
qla24xx_process_response_queue(vha, rsp);
WRT_REG_DWORD(&reg->host_int, 0);
@ -2219,7 +2219,7 @@ qla82xx_poll(int irq, void *dev_id)
vha = pci_get_drvdata(ha->pdev);
host_int = RD_REG_DWORD(&reg->host_int);
if (qla2x00_check_reg_for_disconnect(vha, host_int))
if (qla2x00_check_reg32_for_disconnect(vha, host_int))
goto out;
if (host_int) {
stat = RD_REG_DWORD(&reg->host_status);

8
drivers/scsi/qla2xxx/qla_os.c
View File

@ -5183,13 +5183,7 @@ qla2x00_timer(scsi_qla_host_t *vha)
*/
if (!pci_channel_offline(ha->pdev)) {
pci_read_config_word(ha->pdev, PCI_VENDOR_ID, &w);
if (w == 0xffff)
/*
* Schedule this on the default system workqueue so that
* all the adapter workqueues and the DPC thread can be
* shutdown cleanly.
*/
schedule_work(&ha->board_disable);
qla2x00_check_reg16_for_disconnect(vha, w);
}
/* Make sure qla82xx_watchdog is run only for physical port */