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qla2xxx: Add bsg interface to support D_Port Diagnostics.

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Signed-off-by: Joe Carnuccio <joe.carnuccio@qlogic.com>
Signed-off-by: Himanshu Madhani <himanshu.madhani@qlogic.com>
Reviewed-by: Hannes Reinecke <hare@suse.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
This commit is contained in:
Joe Carnuccio
2016-07-06 11:14:26 -04:00
committed by Martin K. Petersen
parent 783e0dc4f6
commit ec89146215
6 changed files with 122 additions and 5 deletions
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44
drivers/scsi/qla2xxx/qla_bsg.c
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@@ -2295,6 +2295,47 @@ done:
return rval;
}
static int
qla2x00_do_dport_diagnostics(struct fc_bsg_job *bsg_job)
{
struct Scsi_Host *host = bsg_job->shost;
scsi_qla_host_t *vha = shost_priv(host);
int rval;
struct qla_dport_diag *dd;
if (!IS_QLA83XX(vha->hw) && !IS_QLA27XX(vha->hw))
return -EPERM;
dd = kmalloc(sizeof(*dd), GFP_KERNEL);
if (!dd) {
ql_log(ql_log_warn, vha, 0x70db,
"Failed to allocate memory for dport.\n");
return -ENOMEM;
}
sg_copy_to_buffer(bsg_job->request_payload.sg_list,
bsg_job->request_payload.sg_cnt, dd, sizeof(*dd));
rval = qla26xx_dport_diagnostics(
vha, dd->buf, sizeof(dd->buf), dd->options);
if (rval == QLA_SUCCESS) {
sg_copy_from_buffer(bsg_job->reply_payload.sg_list,
bsg_job->reply_payload.sg_cnt, dd, sizeof(*dd));
}
bsg_job->reply->reply_payload_rcv_len = sizeof(*dd);
bsg_job->reply->reply_data.vendor_reply.vendor_rsp[0] =
rval ? EXT_STATUS_MAILBOX : EXT_STATUS_OK;
bsg_job->reply_len = sizeof(*bsg_job->reply);
bsg_job->reply->result = DID_OK << 16;
bsg_job->job_done(bsg_job);
kfree(dd);
return 0;
}
static int
qla2x00_process_vendor_specific(struct fc_bsg_job *bsg_job)
{
@@ -2362,6 +2403,9 @@ qla2x00_process_vendor_specific(struct fc_bsg_job *bsg_job)
case QL_VND_GET_PRIV_STATS:
return qla2x00_get_priv_stats(bsg_job);
case QL_VND_DPORT_DIAGNOSTICS:
return qla2x00_do_dport_diagnostics(bsg_job);
default:
return -ENOSYS;
}