diff options
Diffstat (limited to 'drivers/scsi/qla2xxx/qla_isr.c')
| -rw-r--r-- | drivers/scsi/qla2xxx/qla_isr.c | 53 |
1 files changed, 53 insertions, 0 deletions
diff --git a/drivers/scsi/qla2xxx/qla_isr.c b/drivers/scsi/qla2xxx/qla_isr.c index dcfb24b198f0..f61c2fe8eb59 100644 --- a/drivers/scsi/qla2xxx/qla_isr.c +++ b/drivers/scsi/qla2xxx/qla_isr.c @@ -6,6 +6,7 @@ */ #include "qla_def.h" +#include <linux/delay.h> #include <scsi/scsi_tcq.h> static void qla2x00_mbx_completion(scsi_qla_host_t *, uint16_t); @@ -1484,6 +1485,52 @@ qla24xx_process_response_queue(struct scsi_qla_host *ha) WRT_REG_DWORD(®->rsp_q_out, ha->rsp_ring_index); } +static void +qla2xxx_check_risc_status(scsi_qla_host_t *ha) +{ + int rval; + uint32_t cnt; + struct device_reg_24xx __iomem *reg = &ha->iobase->isp24; + + if (!IS_QLA25XX(ha)) + return; + + rval = QLA_SUCCESS; + WRT_REG_DWORD(®->iobase_addr, 0x7C00); + RD_REG_DWORD(®->iobase_addr); + WRT_REG_DWORD(®->iobase_window, 0x0001); + for (cnt = 10000; (RD_REG_DWORD(®->iobase_window) & BIT_0) == 0 && + rval == QLA_SUCCESS; cnt--) { + if (cnt) { + WRT_REG_DWORD(®->iobase_window, 0x0001); + udelay(10); + } else + rval = QLA_FUNCTION_TIMEOUT; + } + if (rval == QLA_SUCCESS) + goto next_test; + + WRT_REG_DWORD(®->iobase_window, 0x0003); + for (cnt = 100; (RD_REG_DWORD(®->iobase_window) & BIT_0) == 0 && + rval == QLA_SUCCESS; cnt--) { + if (cnt) { + WRT_REG_DWORD(®->iobase_window, 0x0003); + udelay(10); + } else + rval = QLA_FUNCTION_TIMEOUT; + } + if (rval != QLA_SUCCESS) + goto done; + +next_test: + if (RD_REG_DWORD(®->iobase_c8) & BIT_3) + qla_printk(KERN_INFO, ha, "Additional code -- 0x55AA.\n"); + +done: + WRT_REG_DWORD(®->iobase_window, 0x0000); + RD_REG_DWORD(®->iobase_window); +} + /** * qla24xx_intr_handler() - Process interrupts for the ISP23xx and ISP63xx. * @irq: @@ -1526,6 +1573,9 @@ qla24xx_intr_handler(int irq, void *dev_id) qla_printk(KERN_INFO, ha, "RISC paused -- HCCR=%x, " "Dumping firmware!\n", hccr); + + qla2xxx_check_risc_status(ha); + ha->isp_ops->fw_dump(ha, 1); set_bit(ISP_ABORT_NEEDED, &ha->dpc_flags); break; @@ -1663,6 +1713,9 @@ qla24xx_msix_default(int irq, void *dev_id) qla_printk(KERN_INFO, ha, "RISC paused -- HCCR=%x, " "Dumping firmware!\n", hccr); + + qla2xxx_check_risc_status(ha); + ha->isp_ops->fw_dump(ha, 1); set_bit(ISP_ABORT_NEEDED, &ha->dpc_flags); break; |
