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Commit 68d92ebf authored May 17, 2011 by Vikas Chaudhary Committed by James Bottomley May 24, 2011

[SCSI] qla4xxx: Dump HW/FW reg to figure out what caused FW to be hung for ISP82XX



Signed-off-by: Vikas Chaudhary <vikas.chaudhary@qlogic.com>
Reviewed-by: Mike Christie <michaelc@cs.wisc.edu>
Signed-off-by: James Bottomley <jbottomley@parallels.com>

parent cb74428e

drivers/scsi/qla4xxx/ql4_os.c

+21 −1

Original line number	Diff line number	Diff line
		@@ -681,6 +681,26 @@ static void qla4_8xxx_check_fw_alive(struct scsi_qla_host *ha)
		halt_status = qla4_8xxx_rd_32(ha,
		QLA82XX_PEG_HALT_STATUS1);

		ql4_printk(KERN_INFO, ha,
		"scsi(%ld): %s, Dumping hw/fw registers:\n "
		" PEG_HALT_STATUS1: 0x%x, PEG_HALT_STATUS2:"
		" 0x%x,\n PEG_NET_0_PC: 0x%x, PEG_NET_1_PC:"
		" 0x%x,\n PEG_NET_2_PC: 0x%x, PEG_NET_3_PC:"
		" 0x%x,\n PEG_NET_4_PC: 0x%x\n",
		ha->host_no, __func__, halt_status,
		qla4_8xxx_rd_32(ha,
		QLA82XX_PEG_HALT_STATUS2),
		qla4_8xxx_rd_32(ha, QLA82XX_CRB_PEG_NET_0 +
		0x3c),
		qla4_8xxx_rd_32(ha, QLA82XX_CRB_PEG_NET_1 +
		0x3c),
		qla4_8xxx_rd_32(ha, QLA82XX_CRB_PEG_NET_2 +
		0x3c),
		qla4_8xxx_rd_32(ha, QLA82XX_CRB_PEG_NET_3 +
		0x3c),
		qla4_8xxx_rd_32(ha, QLA82XX_CRB_PEG_NET_4 +
		0x3c));

		/* Since we cannot change dev_state in interrupt
		* context, set appropriate DPC flag then wakeup
		* DPC */