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Commit f19af163 authored Oct 15, 2010 by Harish Zunjarrao Committed by James Bottomley Oct 25, 2010

[SCSI] qla2xxx: Add flash read/update support using BSG interface



Signed-off-by: Harish Zunjarrao <harish.zunjarrao@qlogic.com>
Signed-off-by: Madhuranath Iyengar <Madhu.Iyengar@qlogic.com>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>

parent ff454b01

drivers/scsi/qla2xxx/qla_bsg.c

+125 −0

Original line number	Diff line number	Diff line
		@@ -1306,6 +1306,125 @@ qla24xx_iidma(struct fc_bsg_job *bsg_job)
		return rval;
		}

		static int
		qla2x00_optrom_setup(struct fc_bsg_job bsg_job, struct qla_hw_data ha,
		uint8_t is_update)
		{
		uint32_t start = 0;
		int valid = 0;

		bsg_job->reply->reply_payload_rcv_len = 0;

		if (unlikely(pci_channel_offline(ha->pdev)))
		return -EINVAL;

		start = bsg_job->request->rqst_data.h_vendor.vendor_cmd[1];
		if (start > ha->optrom_size)
		return -EINVAL;

		if (ha->optrom_state != QLA_SWAITING)
		return -EBUSY;

		ha->optrom_region_start = start;

		if (is_update) {
		if (ha->optrom_size == OPTROM_SIZE_2300 && start == 0)
		valid = 1;
		else if (start == (ha->flt_region_boot * 4) \|\|
		start == (ha->flt_region_fw * 4))
		valid = 1;
		else if (IS_QLA24XX_TYPE(ha) \|\| IS_QLA25XX(ha) \|\|
		IS_QLA8XXX_TYPE(ha))
		valid = 1;
		if (!valid) {
		qla_printk(KERN_WARNING, ha,
		"Invalid start region 0x%x/0x%x.\n",
		start, bsg_job->request_payload.payload_len);
		return -EINVAL;
		}

		ha->optrom_region_size = start +
		bsg_job->request_payload.payload_len > ha->optrom_size ?
		ha->optrom_size - start :
		bsg_job->request_payload.payload_len;
		ha->optrom_state = QLA_SWRITING;
		} else {
		ha->optrom_region_size = start +
		bsg_job->reply_payload.payload_len > ha->optrom_size ?
		ha->optrom_size - start :
		bsg_job->reply_payload.payload_len;
		ha->optrom_state = QLA_SREADING;
		}

		ha->optrom_buffer = vmalloc(ha->optrom_region_size);
		if (!ha->optrom_buffer) {
		qla_printk(KERN_WARNING, ha,
		"Read: Unable to allocate memory for optrom retrieval "
		"(%x).\n", ha->optrom_region_size);

		ha->optrom_state = QLA_SWAITING;
		return -ENOMEM;
		}

		memset(ha->optrom_buffer, 0, ha->optrom_region_size);
		return 0;
		}

		static int
		qla2x00_read_optrom(struct fc_bsg_job *bsg_job)
		{
		struct Scsi_Host *host = bsg_job->shost;
		scsi_qla_host_t *vha = shost_priv(host);
		struct qla_hw_data *ha = vha->hw;
		int rval = 0;

		rval = qla2x00_optrom_setup(bsg_job, ha, 0);
		if (rval)
		return rval;

		ha->isp_ops->read_optrom(vha, ha->optrom_buffer,
		ha->optrom_region_start, ha->optrom_region_size);

		sg_copy_from_buffer(bsg_job->reply_payload.sg_list,
		bsg_job->reply_payload.sg_cnt, ha->optrom_buffer,
		ha->optrom_region_size);

		bsg_job->reply->reply_payload_rcv_len = ha->optrom_region_size;
		bsg_job->reply->result = DID_OK;
		vfree(ha->optrom_buffer);
		ha->optrom_buffer = NULL;
		ha->optrom_state = QLA_SWAITING;
		bsg_job->job_done(bsg_job);
		return rval;
		}

		static int
		qla2x00_update_optrom(struct fc_bsg_job *bsg_job)
		{
		struct Scsi_Host *host = bsg_job->shost;
		scsi_qla_host_t *vha = shost_priv(host);
		struct qla_hw_data *ha = vha->hw;
		int rval = 0;

		rval = qla2x00_optrom_setup(bsg_job, ha, 1);
		if (rval)
		return rval;

		sg_copy_to_buffer(bsg_job->request_payload.sg_list,
		bsg_job->request_payload.sg_cnt, ha->optrom_buffer,
		ha->optrom_region_size);

		ha->isp_ops->write_optrom(vha, ha->optrom_buffer,
		ha->optrom_region_start, ha->optrom_region_size);

		bsg_job->reply->result = DID_OK;
		vfree(ha->optrom_buffer);
		ha->optrom_buffer = NULL;
		ha->optrom_state = QLA_SWAITING;
		bsg_job->job_done(bsg_job);
		return rval;
		}

		static int
		qla2x00_process_vendor_specific(struct fc_bsg_job *bsg_job)
		{
		@@ -1328,6 +1447,12 @@ qla2x00_process_vendor_specific(struct fc_bsg_job *bsg_job)
		case QL_VND_FCP_PRIO_CFG_CMD:
		return qla24xx_proc_fcp_prio_cfg_cmd(bsg_job);

		case QL_VND_READ_FLASH:
		return qla2x00_read_optrom(bsg_job);

		case QL_VND_UPDATE_FLASH:
		return qla2x00_update_optrom(bsg_job);

		default:
		bsg_job->reply->result = (DID_ERROR << 16);
		bsg_job->job_done(bsg_job);

drivers/scsi/qla2xxx/qla_bsg.h

+2 −0

Original line number	Diff line number	Diff line
		@@ -14,6 +14,8 @@
		#define QL_VND_A84_MGMT_CMD 0x04
		#define QL_VND_IIDMA 0x05
		#define QL_VND_FCP_PRIO_CFG_CMD 0x06
		#define QL_VND_READ_FLASH 0x07
		#define QL_VND_UPDATE_FLASH 0x08

		/* BSG definations for interpreting CommandSent field */
		#define INT_DEF_LB_LOOPBACK_CMD 0