[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>

diff --git a/drivers/scsi/qla2xxx/qla_bsg.c b/drivers/scsi/qla2xxx/qla_bsg.c
index fdfbf83a63309316c394bf360d189c8bae7a9b33..31a4121a2be1651543d97cd99be7534c86a6acb9 100644 (file)
--- a/drivers/scsi/qla2xxx/qla_bsg.c
+++ b/drivers/scsi/qla2xxx/qla_bsg.c
@@ -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);

diff --git a/drivers/scsi/qla2xxx/qla_bsg.h b/drivers/scsi/qla2xxx/qla_bsg.h
index cc7c52f87a11a3332868ccf2bfac3d9aae31c9d2..074a999c7017a8cd05c4763c49042e464177b2f8 100644 (file)
--- a/drivers/scsi/qla2xxx/qla_bsg.h
+++ b/drivers/scsi/qla2xxx/qla_bsg.h
@@ -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