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Commit 320a61de authored Sep 20, 2012 by Nilesh Javali Committed by James Bottomley Sep 24, 2012

[SCSI] qla4xxx: IDC implementation for Loopback



Handle IDC Request Notify AEN and post IDC Acknowledgement
while participating in Loopback IDC.

Signed-off-by: Nilesh Javali <nilesh.javali@qlogic.com>
Signed-off-by: Vikas Chaudhary <vikas.chaudhary@qlogic.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>

parent a9b0347f

drivers/scsi/qla4xxx/ql4_83xx.h

+8 −0

Original line number	Diff line number	Diff line
		@@ -259,4 +259,12 @@ struct qla83xx_minidump_entry_pollrdmwr {
		uint32_t data_size;
		};

		/* IDC additional information */
		struct qla4_83xx_idc_information {
		uint32_t request_desc; /* IDC request descriptor */
		uint32_t info1; /* IDC additional info */
		uint32_t info2; /* IDC additional info */
		uint32_t info3; /* IDC additional info */
		};

		#endif

drivers/scsi/qla4xxx/ql4_def.h

+2 −1

Original line number	Diff line number	Diff line
		@@ -531,7 +531,7 @@ struct scsi_qla_host {
		#define DPC_RESET_ACTIVE 20 /* 0x00040000 */
		#define DPC_HA_UNRECOVERABLE 21 /* 0x00080000 ISP-82xx only*/
		#define DPC_HA_NEED_QUIESCENT 22 /* 0x00100000 ISP-82xx only*/

		#define DPC_POST_IDC_ACK 23 /* 0x00200000 */

		struct Scsi_Host host; / pointer to host data */
		uint32_t tot_ddbs;
		@@ -756,6 +756,7 @@ struct scsi_qla_host {
		struct device_reg_83xx __iomem qla4_83xx_reg; / Base I/O address
		for ISP8324 */
		uint32_t pf_bit;
		struct qla4_83xx_idc_information idc_info;
		};

		struct ql4_task_data {

drivers/scsi/qla4xxx/ql4_fw.h

+6 −0

Original line number	Diff line number	Diff line
		@@ -454,6 +454,10 @@ struct qla_flt_region {
		#define MBOX_CMD_GET_CRASH_RECORD 0x0076 /* 4010 only */
		#define MBOX_CMD_GET_CONN_EVENT_LOG 0x0077

		#define MBOX_CMD_IDC_ACK 0x0101
		#define MBOX_CMD_PORT_RESET 0x0120
		#define MBOX_CMD_SET_PORT_CONFIG 0x0122

		/* Mailbox status definitions */
		#define MBOX_COMPLETION_STATUS 4
		#define MBOX_STS_BUSY 0x0007
		@@ -490,6 +494,8 @@ struct qla_flt_region {
		#define MBOX_ASTS_IPV6_ND_PREFIX_IGNORED 0x802C
		#define MBOX_ASTS_IPV6_LCL_PREFIX_IGNORED 0x802D
		#define MBOX_ASTS_ICMPV6_ERROR_MSG_RCVD 0x802E
		#define MBOX_ASTS_IDC_COMPLETE 0x8100
		#define MBOX_ASTS_IDC_NOTIFY 0x8101
		#define MBOX_ASTS_TXSCVR_INSERTED 0x8130
		#define MBOX_ASTS_TXSCVR_REMOVED 0x8131

drivers/scsi/qla4xxx/ql4_glbl.h

+1 −0

Original line number	Diff line number	Diff line
		@@ -257,6 +257,7 @@ int qla4_8xxx_mbx_intr_disable(struct scsi_qla_host *ha);
		int qla4_8xxx_mbx_intr_enable(struct scsi_qla_host *ha);
		int qla4_8xxx_set_param(struct scsi_qla_host *ha, int param);
		int qla4_8xxx_update_idc_reg(struct scsi_qla_host *ha);
		int qla4_83xx_post_idc_ack(struct scsi_qla_host *ha);

		extern int ql4xextended_error_logging;
		extern int ql4xdontresethba;

drivers/scsi/qla4xxx/ql4_isr.c

+37 −0

Original line number	Diff line number	Diff line
		@@ -806,6 +806,43 @@ static void qla4xxx_isr_decode_mailbox(struct scsi_qla_host * ha,
		" removed\n", ha->host_no, mbox_sts[0]));
		break;

		case MBOX_ASTS_IDC_NOTIFY:
		{
		uint32_t opcode;
		if (is_qla8032(ha)) {
		DEBUG2(ql4_printk(KERN_INFO, ha,
		"scsi%ld: AEN %04x, mbox_sts[1]=%08x, mbox_sts[2]=%08x, mbox_sts[3]=%08x, mbox_sts[4]=%08x\n",
		ha->host_no, mbox_sts[0],
		mbox_sts[1], mbox_sts[2],
		mbox_sts[3], mbox_sts[4]));
		opcode = mbox_sts[1] >> 16;
		if ((opcode == MBOX_CMD_SET_PORT_CONFIG) \|\|
		(opcode == MBOX_CMD_PORT_RESET)) {
		set_bit(DPC_POST_IDC_ACK,
		&ha->dpc_flags);
		ha->idc_info.request_desc = mbox_sts[1];
		ha->idc_info.info1 = mbox_sts[2];
		ha->idc_info.info2 = mbox_sts[3];
		ha->idc_info.info3 = mbox_sts[4];
		qla4xxx_wake_dpc(ha);
		}
		}
		break;
		}

		case MBOX_ASTS_IDC_COMPLETE:
		if (is_qla8032(ha)) {
		DEBUG2(ql4_printk(KERN_INFO, ha,
		"scsi%ld: AEN %04x, mbox_sts[1]=%08x, mbox_sts[2]=%08x, mbox_sts[3]=%08x, mbox_sts[4]=%08x\n",
		ha->host_no, mbox_sts[0],
		mbox_sts[1], mbox_sts[2],
		mbox_sts[3], mbox_sts[4]));
		DEBUG2(ql4_printk(KERN_INFO, ha,
		"scsi:%ld: AEN %04x IDC Complete notification\n",
		ha->host_no, mbox_sts[0]));
		}
		break;

		default:
		DEBUG2(printk(KERN_WARNING
		"scsi%ld: AEN %04x UNKNOWN\n",