[SCSI] qla2xxx: Do link initialization on get loop id failure.
To avoid continually doing ISP resets when get loop id fails to
obtain the adapter loop id, first try to do a link initialization.
Signed-off-by: Joe Carnuccio <joe.carnuccio@qlogic.com>
Signed-off-by: Saurav Kashyap <saurav.kashyap@qlogic.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
diff --git a/drivers/scsi/qla2xxx/qla_mbx.c b/drivers/scsi/qla2xxx/qla_mbx.c
index 92d51fc..550f75a 100644
--- a/drivers/scsi/qla2xxx/qla_mbx.c
+++ b/drivers/scsi/qla2xxx/qla_mbx.c
@@ -1633,6 +1633,54 @@
}
/*
+ * qla24xx_link_initialization
+ * Issue link initialization mailbox command.
+ *
+ * Input:
+ * ha = adapter block pointer.
+ * TARGET_QUEUE_LOCK must be released.
+ * ADAPTER_STATE_LOCK must be released.
+ *
+ * Returns:
+ * qla2x00 local function return status code.
+ *
+ * Context:
+ * Kernel context.
+ */
+int
+qla24xx_link_initialize(scsi_qla_host_t *vha)
+{
+ int rval;
+ mbx_cmd_t mc;
+ mbx_cmd_t *mcp = &mc;
+
+ ql_dbg(ql_dbg_mbx + ql_dbg_verbose, vha, 0x1152,
+ "Entered %s.\n", __func__);
+
+ if (!IS_FWI2_CAPABLE(vha->hw) || IS_CNA_CAPABLE(vha->hw))
+ return QLA_FUNCTION_FAILED;
+
+ mcp->mb[0] = MBC_LINK_INITIALIZATION;
+ mcp->mb[1] = BIT_6|BIT_4;
+ mcp->mb[2] = 0;
+ mcp->mb[3] = 0;
+ mcp->out_mb = MBX_3|MBX_2|MBX_1|MBX_0;
+ mcp->in_mb = MBX_0;
+ mcp->tov = MBX_TOV_SECONDS;
+ mcp->flags = 0;
+ rval = qla2x00_mailbox_command(vha, mcp);
+
+ if (rval != QLA_SUCCESS) {
+ ql_dbg(ql_dbg_mbx, vha, 0x1153, "Failed=%x.\n", rval);
+ } else {
+ ql_dbg(ql_dbg_mbx + ql_dbg_verbose, vha, 0x1154,
+ "Done %s.\n", __func__);
+ }
+
+ return rval;
+}
+
+/*
* qla2x00_lip_reset
* Issue LIP reset mailbox command.
*