From ef19298b406f93af4bb249f0776deb8366e97532 Mon Sep 17 00:00:00 2001 From: Stefan Weinhuber Date: Wed, 5 Jan 2011 12:48:02 +0100 Subject: [S390] dasd: add High Performance FICON multitrack support Some storage systems support multitrack High Performance FICON requests, which read or write data to more than one track. This patch enables the DASD device driver to generate multitrack High Performance FICON requests. Signed-off-by: Stefan Weinhuber Signed-off-by: Martin Schwidefsky --- drivers/s390/block/dasd_eckd.h | 6 ++++++ 1 file changed, 6 insertions(+) (limited to 'drivers/s390/block/dasd_eckd.h') diff --git a/drivers/s390/block/dasd_eckd.h b/drivers/s390/block/dasd_eckd.h index 12097c2..2150aed 100644 --- a/drivers/s390/block/dasd_eckd.h +++ b/drivers/s390/block/dasd_eckd.h @@ -57,6 +57,10 @@ */ #define LV_COMPAT_CYL 0xFFFE + +#define FCX_MAX_DATA_FACTOR 65536 + + /***************************************************************************** * SECTION: Type Definitions ****************************************************************************/ @@ -455,6 +459,8 @@ struct dasd_eckd_private { struct alias_pav_group *pavgroup; struct alias_lcu *lcu; int count; + + u32 fcx_max_data; }; -- cgit v1.1