drivers/misc/hpilo.h

1 /* SPDX-License-Identifier: GPL-2.0 */
5  * Copyright (C) 2008 Hewlett-Packard Development Company, L.P.
16 /* max number of open channel control blocks per device, hw limited to 32 */
18 /* min number of open channel control blocks per device, hw limited to 32 */
26 /* per spin wait time in usec */
32  * Per device, used to track global memory allocations.
41 	/* shared memory on device used for channel control blocks */
52 	 * -> alloc_lock  used when adding/removing/searching ccb_alloc,
54 	 * --> fifo_lock  controls access to fifo queues shared with hw
75  * Channel control block. Used to manage hardware queues.
107 	u64 channel;  member
130  * Per fd structure used to track the ccb allocated to that dev file.
169 	u64 reset;	/* set to non-zero when the target device resets */
170 	u8  pad_0[ILO_CACHE_SZ - (sizeof(u64) * 4)];
173 	u8  pad_1[ILO_CACHE_SZ - (sizeof(u64))];
176 	u8  pad_2[ILO_CACHE_SZ - (sizeof(u64))];
184 	((struct fifo *)(((char *)(_fifo)) - FIFOHANDLESIZE))
204 #define ENTRY_MASK ((1 << ENTRY_BITS_TOTAL) - 1)
205 #define ENTRY_MASK_C (((1 << ENTRY_BITS_C) - 1) << ENTRY_BITPOS_C)
206 #define ENTRY_MASK_O (((1 << ENTRY_BITS_O) - 1) << ENTRY_BITPOS_O)
208 	(((1 << ENTRY_BITS_QWORDS) - 1) << ENTRY_BITPOS_QWORDS)
210 	(((1 << ENTRY_BITS_DESCRIPTOR) - 1) << ENTRY_BITPOS_DESCRIPTOR)