[SCSI] qla2xxx: Add DMI (Diagnostics Monitoring Interface) support.

Signed-off-by: Andrew Vasquez <andrew.vasquez@qlogic.com>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>

1 files changed, 36 insertions, 0 deletions

diff --git a/drivers/scsi/qla2xxx/qla_mbx.c b/drivers/scsi/qla2xxx/qla_mbx.c
index 3b16d6f2ee9..f5e226fc9e3 100644
--- a/drivers/scsi/qla2xxx/qla_mbx.c
+++ b/drivers/scsi/qla2xxx/qla_mbx.c
@@ -2503,4 +2503,40 @@ qla2x00_trace_control(scsi_qla_host_t *ha, uint16_t ctrl, dma_addr_t eft_dma,
         return rval;
 }
 
+int
+qla2x00_read_sfp(scsi_qla_host_t *ha, dma_addr_t sfp_dma, uint16_t addr,
+    uint16_t off, uint16_t count)
+{
+        int rval;
+        mbx_cmd_t mc;
+        mbx_cmd_t *mcp = &mc;
 
+        if (!IS_QLA24XX(ha) && !IS_QLA54XX(ha))
+                return QLA_FUNCTION_FAILED;
+
+        DEBUG11(printk("%s(%ld): entered.\n", __func__, ha->host_no));
+
+        mcp->mb[0] = MBC_READ_SFP;
+        mcp->mb[1] = addr;
+        mcp->mb[2] = MSW(sfp_dma);
+        mcp->mb[3] = LSW(sfp_dma);
+        mcp->mb[6] = MSW(MSD(sfp_dma));
+        mcp->mb[7] = LSW(MSD(sfp_dma));
+        mcp->mb[8] = count;
+        mcp->mb[9] = off;
+        mcp->mb[10] = 0;
+        mcp->out_mb = MBX_10|MBX_9|MBX_8|MBX_7|MBX_6|MBX_3|MBX_2|MBX_1|MBX_0;
+        mcp->in_mb = MBX_0;
+        mcp->tov = 30;
+        mcp->flags = 0;
+        rval = qla2x00_mailbox_command(ha, mcp);
+
+        if (rval != QLA_SUCCESS) {
+                DEBUG2_3_11(printk("%s(%ld): failed=%x (%x).\n", __func__,
+                    ha->host_no, rval, mcp->mb[0]));
+        } else {
+                DEBUG11(printk("%s(%ld): done.\n", __func__, ha->host_no));
+        }
+
+        return rval;
+}