1 /* 2 * Filename: rsXX_cfg.h 3 * 4 * 5 * Authors: Joshua Morris <josh.h.morris@us.ibm.com> 6 * Philip Kelleher <pjk1939@linux.vnet.ibm.com> 7 * 8 * (C) Copyright 2013 IBM Corporation 9 * 10 * This program is free software; you can redistribute it and/or 11 * modify it under the terms of the GNU General Public License as 12 * published by the Free Software Foundation; either version 2 of the 13 * License, or (at your option) any later version. 14 * 15 * This program is distributed in the hope that it will be useful, but 16 * WITHOUT ANY WARRANTY; without even the implied warranty of 17 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 18 * General Public License for more details. 19 * 20 * You should have received a copy of the GNU General Public License 21 * along with this program; if not, write to the Free Software Foundation, 22 * Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA 23 */ 24 25 #ifndef __RSXX_CFG_H__ 26 #define __RSXX_CFG_H__ 27 28 /* NOTE: Config values will be saved in network byte order (i.e. Big endian) */ 29 #include <linux/types.h> 30 31 /* 32 * The card config version must match the driver's expected version. If it does 33 * not, the DMA interfaces will not be attached and the user will need to 34 * initialize/upgrade the card configuration using the card config utility. 35 */ 36 #define RSXX_CFG_VERSION 4 37 38 struct card_cfg_hdr { 39 __u32 version; 40 __u32 crc; 41 }; 42 43 struct card_cfg_data { 44 __u32 block_size; 45 __u32 stripe_size; 46 __u32 vendor_id; 47 __u32 cache_order; 48 struct { 49 __u32 mode; /* Disabled, manual, auto-tune... */ 50 __u32 count; /* Number of intr to coalesce */ 51 __u32 latency;/* Max wait time (in ns) */ 52 } intr_coal; 53 }; 54 55 struct rsxx_card_cfg { 56 struct card_cfg_hdr hdr; 57 struct card_cfg_data data; 58 }; 59 60 /* Vendor ID Values */ 61 #define RSXX_VENDOR_ID_IBM 0 62 #define RSXX_VENDOR_ID_DSI 1 63 #define RSXX_VENDOR_COUNT 2 64 65 /* Interrupt Coalescing Values */ 66 #define RSXX_INTR_COAL_DISABLED 0 67 #define RSXX_INTR_COAL_EXPLICIT 1 68 #define RSXX_INTR_COAL_AUTO_TUNE 2 69 70 71 #endif /* __RSXX_CFG_H__ */ 72 73