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4a4f51e9b6
Signed-off-by: Vikas Chaudhary <vikas.chaudhary@qlogic.com> Signed-off-by: James Bottomley <JBottomley@Parallels.com>
514 lines
14 KiB
C
514 lines
14 KiB
C
/*
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* QLogic iSCSI HBA Driver
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* Copyright (c) 2011-2013 QLogic Corporation
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*
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* See LICENSE.qla4xxx for copyright and licensing details.
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*/
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#include "ql4_def.h"
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#include "ql4_glbl.h"
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#include "ql4_bsg.h"
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static int
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qla4xxx_read_flash(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_reply *bsg_reply = bsg_job->reply;
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struct iscsi_bsg_request *bsg_req = bsg_job->request;
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uint32_t offset = 0;
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uint32_t length = 0;
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dma_addr_t flash_dma;
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uint8_t *flash = NULL;
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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 (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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if (ha->flash_state != QLFLASH_WAITING) {
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ql4_printk(KERN_ERR, ha, "%s: another flash operation "
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"active\n", __func__);
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rval = -EBUSY;
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goto leave;
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}
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ha->flash_state = QLFLASH_READING;
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offset = bsg_req->rqst_data.h_vendor.vendor_cmd[1];
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length = bsg_job->reply_payload.payload_len;
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flash = dma_alloc_coherent(&ha->pdev->dev, length, &flash_dma,
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GFP_KERNEL);
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if (!flash) {
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ql4_printk(KERN_ERR, ha, "%s: dma alloc failed for flash "
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"data\n", __func__);
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rval = -ENOMEM;
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goto leave;
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}
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rval = qla4xxx_get_flash(ha, flash_dma, offset, length);
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if (rval) {
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ql4_printk(KERN_ERR, ha, "%s: get flash 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->reply_payload_rcv_len =
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sg_copy_from_buffer(bsg_job->reply_payload.sg_list,
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bsg_job->reply_payload.sg_cnt,
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flash, length);
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bsg_reply->result = DID_OK << 16;
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}
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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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dma_free_coherent(&ha->pdev->dev, length, flash, flash_dma);
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leave:
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ha->flash_state = QLFLASH_WAITING;
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return rval;
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}
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static int
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qla4xxx_update_flash(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_reply *bsg_reply = bsg_job->reply;
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struct iscsi_bsg_request *bsg_req = bsg_job->request;
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uint32_t length = 0;
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uint32_t offset = 0;
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uint32_t options = 0;
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dma_addr_t flash_dma;
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uint8_t *flash = NULL;
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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 (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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if (ha->flash_state != QLFLASH_WAITING) {
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ql4_printk(KERN_ERR, ha, "%s: another flash operation "
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"active\n", __func__);
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rval = -EBUSY;
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goto leave;
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}
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ha->flash_state = QLFLASH_WRITING;
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length = bsg_job->request_payload.payload_len;
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offset = bsg_req->rqst_data.h_vendor.vendor_cmd[1];
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options = bsg_req->rqst_data.h_vendor.vendor_cmd[2];
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flash = dma_alloc_coherent(&ha->pdev->dev, length, &flash_dma,
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GFP_KERNEL);
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if (!flash) {
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ql4_printk(KERN_ERR, ha, "%s: dma alloc failed for flash "
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"data\n", __func__);
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rval = -ENOMEM;
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goto leave;
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}
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sg_copy_to_buffer(bsg_job->request_payload.sg_list,
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bsg_job->request_payload.sg_cnt, flash, length);
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rval = qla4xxx_set_flash(ha, flash_dma, offset, length, options);
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if (rval) {
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ql4_printk(KERN_ERR, ha, "%s: set flash 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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dma_free_coherent(&ha->pdev->dev, length, flash, flash_dma);
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leave:
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ha->flash_state = QLFLASH_WAITING;
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return rval;
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}
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static int
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qla4xxx_get_acb_state(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 status[MBOX_REG_COUNT];
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uint32_t acb_idx;
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uint32_t ip_idx;
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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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/* Only 4022 and above adapters are supported */
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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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if (bsg_job->reply_payload.payload_len < sizeof(status)) {
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ql4_printk(KERN_ERR, ha, "%s: invalid payload len %d\n",
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__func__, bsg_job->reply_payload.payload_len);
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rval = -EINVAL;
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goto leave;
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}
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acb_idx = bsg_req->rqst_data.h_vendor.vendor_cmd[1];
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ip_idx = bsg_req->rqst_data.h_vendor.vendor_cmd[2];
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rval = qla4xxx_get_ip_state(ha, acb_idx, ip_idx, status);
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if (rval) {
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ql4_printk(KERN_ERR, ha, "%s: get ip state failed\n",
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__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->reply_payload_rcv_len =
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sg_copy_from_buffer(bsg_job->reply_payload.sg_list,
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bsg_job->reply_payload.sg_cnt,
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status, sizeof(status));
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bsg_reply->result = DID_OK << 16;
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}
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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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static int
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qla4xxx_read_nvram(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 offset = 0;
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uint32_t len = 0;
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uint32_t total_len = 0;
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dma_addr_t nvram_dma;
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uint8_t *nvram = NULL;
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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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/* Only 40xx adapters are supported */
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if (!(is_qla4010(ha) || is_qla4022(ha) || is_qla4032(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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offset = bsg_req->rqst_data.h_vendor.vendor_cmd[1];
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len = bsg_job->reply_payload.payload_len;
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total_len = offset + len;
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/* total len should not be greater than max NVRAM size */
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if ((is_qla4010(ha) && total_len > QL4010_NVRAM_SIZE) ||
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((is_qla4022(ha) || is_qla4032(ha)) &&
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total_len > QL40X2_NVRAM_SIZE)) {
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ql4_printk(KERN_ERR, ha, "%s: offset+len greater than max"
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" nvram size, offset=%d len=%d\n",
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__func__, offset, len);
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goto leave;
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}
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nvram = dma_alloc_coherent(&ha->pdev->dev, len, &nvram_dma,
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GFP_KERNEL);
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if (!nvram) {
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ql4_printk(KERN_ERR, ha, "%s: dma alloc failed for nvram "
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"data\n", __func__);
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rval = -ENOMEM;
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goto leave;
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}
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rval = qla4xxx_get_nvram(ha, nvram_dma, offset, len);
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if (rval) {
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ql4_printk(KERN_ERR, ha, "%s: get 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->reply_payload_rcv_len =
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sg_copy_from_buffer(bsg_job->reply_payload.sg_list,
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bsg_job->reply_payload.sg_cnt,
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nvram, len);
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bsg_reply->result = DID_OK << 16;
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}
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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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dma_free_coherent(&ha->pdev->dev, len, nvram, nvram_dma);
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leave:
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return rval;
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}
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static int
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qla4xxx_update_nvram(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 offset = 0;
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uint32_t len = 0;
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uint32_t total_len = 0;
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dma_addr_t nvram_dma;
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uint8_t *nvram = NULL;
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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) || is_qla4022(ha) || is_qla4032(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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offset = bsg_req->rqst_data.h_vendor.vendor_cmd[1];
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len = bsg_job->request_payload.payload_len;
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total_len = offset + len;
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/* total len should not be greater than max NVRAM size */
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if ((is_qla4010(ha) && total_len > QL4010_NVRAM_SIZE) ||
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((is_qla4022(ha) || is_qla4032(ha)) &&
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total_len > QL40X2_NVRAM_SIZE)) {
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ql4_printk(KERN_ERR, ha, "%s: offset+len greater than max"
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" nvram size, offset=%d len=%d\n",
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__func__, offset, len);
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goto leave;
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}
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nvram = dma_alloc_coherent(&ha->pdev->dev, len, &nvram_dma,
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GFP_KERNEL);
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if (!nvram) {
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ql4_printk(KERN_ERR, ha, "%s: dma alloc failed for flash "
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"data\n", __func__);
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rval = -ENOMEM;
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goto leave;
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}
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sg_copy_to_buffer(bsg_job->request_payload.sg_list,
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bsg_job->request_payload.sg_cnt, nvram, len);
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rval = qla4xxx_set_nvram(ha, nvram_dma, offset, len);
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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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dma_free_coherent(&ha->pdev->dev, len, nvram, nvram_dma);
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leave:
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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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static int
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qla4xxx_bsg_get_acb(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 acb_type = 0;
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uint32_t len = 0;
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dma_addr_t acb_dma;
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uint8_t *acb = NULL;
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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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/* Only 4022 and above adapters are supported */
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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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acb_type = bsg_req->rqst_data.h_vendor.vendor_cmd[1];
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len = bsg_job->reply_payload.payload_len;
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if (len < sizeof(struct addr_ctrl_blk)) {
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ql4_printk(KERN_ERR, ha, "%s: invalid acb len %d\n",
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__func__, len);
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rval = -EINVAL;
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goto leave;
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}
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acb = dma_alloc_coherent(&ha->pdev->dev, len, &acb_dma, GFP_KERNEL);
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if (!acb) {
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ql4_printk(KERN_ERR, ha, "%s: dma alloc failed for acb "
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"data\n", __func__);
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rval = -ENOMEM;
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goto leave;
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}
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rval = qla4xxx_get_acb(ha, acb_dma, acb_type, len);
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if (rval) {
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ql4_printk(KERN_ERR, ha, "%s: get acb 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->reply_payload_rcv_len =
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sg_copy_from_buffer(bsg_job->reply_payload.sg_list,
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bsg_job->reply_payload.sg_cnt,
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acb, len);
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bsg_reply->result = DID_OK << 16;
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}
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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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dma_free_coherent(&ha->pdev->dev, len, acb, acb_dma);
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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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**/
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int qla4xxx_process_vendor_specific(struct bsg_job *bsg_job)
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{
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struct iscsi_bsg_reply *bsg_reply = bsg_job->reply;
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struct iscsi_bsg_request *bsg_req = bsg_job->request;
|
|
struct Scsi_Host *host = iscsi_job_to_shost(bsg_job);
|
|
struct scsi_qla_host *ha = to_qla_host(host);
|
|
|
|
switch (bsg_req->rqst_data.h_vendor.vendor_cmd[0]) {
|
|
case QLISCSI_VND_READ_FLASH:
|
|
return qla4xxx_read_flash(bsg_job);
|
|
|
|
case QLISCSI_VND_UPDATE_FLASH:
|
|
return qla4xxx_update_flash(bsg_job);
|
|
|
|
case QLISCSI_VND_GET_ACB_STATE:
|
|
return qla4xxx_get_acb_state(bsg_job);
|
|
|
|
case QLISCSI_VND_READ_NVRAM:
|
|
return qla4xxx_read_nvram(bsg_job);
|
|
|
|
case QLISCSI_VND_UPDATE_NVRAM:
|
|
return qla4xxx_update_nvram(bsg_job);
|
|
|
|
case QLISCSI_VND_RESTORE_DEFAULTS:
|
|
return qla4xxx_restore_defaults(bsg_job);
|
|
|
|
case QLISCSI_VND_GET_ACB:
|
|
return qla4xxx_bsg_get_acb(bsg_job);
|
|
|
|
default:
|
|
ql4_printk(KERN_ERR, ha, "%s: invalid BSG vendor command: "
|
|
"0x%x\n", __func__, bsg_req->msgcode);
|
|
bsg_reply->result = (DID_ERROR << 16);
|
|
bsg_reply->reply_payload_rcv_len = 0;
|
|
bsg_job_done(bsg_job, bsg_reply->result,
|
|
bsg_reply->reply_payload_rcv_len);
|
|
return -ENOSYS;
|
|
}
|
|
}
|
|
|
|
/**
|
|
* qla4xxx_bsg_request - handle bsg request from ISCSI transport
|
|
* @job: iscsi_bsg_job to handle
|
|
*/
|
|
int qla4xxx_bsg_request(struct bsg_job *bsg_job)
|
|
{
|
|
struct iscsi_bsg_request *bsg_req = bsg_job->request;
|
|
struct Scsi_Host *host = iscsi_job_to_shost(bsg_job);
|
|
struct scsi_qla_host *ha = to_qla_host(host);
|
|
|
|
switch (bsg_req->msgcode) {
|
|
case ISCSI_BSG_HST_VENDOR:
|
|
return qla4xxx_process_vendor_specific(bsg_job);
|
|
|
|
default:
|
|
ql4_printk(KERN_ERR, ha, "%s: invalid BSG command: 0x%x\n",
|
|
__func__, bsg_req->msgcode);
|
|
}
|
|
|
|
return -ENOSYS;
|
|
}
|