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[SCSI] qla4xxx: Added restore factory defaults support using BSG
This command will causes the firmware to update all configurations to pre-defined factory default settings. Signed-off-by: Harish Zunjarrao <harish.zunjarrao@qlogic.com> 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>
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4 changed files with 77 additions and 0 deletions
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@ -337,6 +337,50 @@ qla4xxx_update_nvram(struct bsg_job *bsg_job)
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return rval;
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}
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static int
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qla4xxx_restore_defaults(struct bsg_job *bsg_job)
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{
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struct Scsi_Host *host = iscsi_job_to_shost(bsg_job);
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struct scsi_qla_host *ha = to_qla_host(host);
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struct iscsi_bsg_request *bsg_req = bsg_job->request;
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struct iscsi_bsg_reply *bsg_reply = bsg_job->reply;
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uint32_t region = 0;
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uint32_t field0 = 0;
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uint32_t field1 = 0;
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int rval = -EINVAL;
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bsg_reply->reply_payload_rcv_len = 0;
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if (unlikely(pci_channel_offline(ha->pdev)))
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goto leave;
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if (is_qla4010(ha))
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goto leave;
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if (ql4xxx_reset_active(ha)) {
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ql4_printk(KERN_ERR, ha, "%s: reset active\n", __func__);
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rval = -EBUSY;
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goto leave;
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}
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region = bsg_req->rqst_data.h_vendor.vendor_cmd[1];
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field0 = bsg_req->rqst_data.h_vendor.vendor_cmd[2];
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field1 = bsg_req->rqst_data.h_vendor.vendor_cmd[3];
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rval = qla4xxx_restore_factory_defaults(ha, region, field0, field1);
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if (rval) {
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ql4_printk(KERN_ERR, ha, "%s: set nvram failed\n", __func__);
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bsg_reply->result = DID_ERROR << 16;
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rval = -EIO;
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} else
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bsg_reply->result = DID_OK << 16;
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bsg_job_done(bsg_job, bsg_reply->result,
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bsg_reply->reply_payload_rcv_len);
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leave:
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return rval;
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}
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/**
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* qla4xxx_process_vendor_specific - handle vendor specific bsg request
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* @job: iscsi_bsg_job to handle
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@ -364,6 +408,9 @@ int qla4xxx_process_vendor_specific(struct bsg_job *bsg_job)
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case QLISCSI_VND_UPDATE_NVRAM:
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return qla4xxx_update_nvram(bsg_job);
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case QLISCSI_VND_RESTORE_DEFAULTS:
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return qla4xxx_restore_defaults(bsg_job);
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default:
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ql4_printk(KERN_ERR, ha, "%s: invalid BSG vendor command: "
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"0x%x\n", __func__, bsg_req->msgcode);
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@ -13,5 +13,6 @@
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#define QLISCSI_VND_GET_ACB_STATE 3
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#define QLISCSI_VND_READ_NVRAM 4
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#define QLISCSI_VND_UPDATE_NVRAM 5
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#define QLISCSI_VND_RESTORE_DEFAULTS 6
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#endif
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@ -166,6 +166,9 @@ int qla4xxx_get_nvram(struct scsi_qla_host *ha, dma_addr_t nvram_dma,
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uint32_t offset, uint32_t size);
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int qla4xxx_set_nvram(struct scsi_qla_host *ha, dma_addr_t nvram_dma,
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uint32_t offset, uint32_t size);
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int qla4xxx_restore_factory_defaults(struct scsi_qla_host *ha,
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uint32_t region, uint32_t field0,
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uint32_t field1);
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/* BSG Functions */
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int qla4xxx_bsg_request(struct bsg_job *bsg_job);
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@ -1744,3 +1744,29 @@ int qla4xxx_set_nvram(struct scsi_qla_host *ha, dma_addr_t nvram_dma,
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}
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return status;
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}
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int qla4xxx_restore_factory_defaults(struct scsi_qla_host *ha,
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uint32_t region, uint32_t field0,
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uint32_t field1)
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{
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int status = QLA_SUCCESS;
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uint32_t mbox_cmd[MBOX_REG_COUNT];
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uint32_t mbox_sts[MBOX_REG_COUNT];
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memset(&mbox_cmd, 0, sizeof(mbox_cmd));
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memset(&mbox_sts, 0, sizeof(mbox_sts));
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mbox_cmd[0] = MBOX_CMD_RESTORE_FACTORY_DEFAULTS;
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mbox_cmd[3] = region;
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mbox_cmd[4] = field0;
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mbox_cmd[5] = field1;
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status = qla4xxx_mailbox_command(ha, MBOX_REG_COUNT, 3, &mbox_cmd[0],
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&mbox_sts[0]);
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if (status != QLA_SUCCESS) {
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DEBUG2(ql4_printk(KERN_ERR, ha, "scsi%ld: %s: failed "
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"status %04X\n", ha->host_no, __func__,
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mbox_sts[0]));
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}
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return status;
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}
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