scsi/cxlflash/sislite.h

1 /* SPDX-License-Identifier: GPL-2.0-or-later */
24  * except for SCSI CDB which remains big endian per SCSI standards.
49 				 * 0x1 -> port#0 can be selected,
50 				 * 0x2 -> port#1 can be selected.
65 #define SISL_MSI_ASYNC_ERROR       3	/* master only - for AFU async error */
112 	 * a FC port. If the port went down on an active IO, it will set
132 	 * If the link is down or logged out before AFU selects the port, either
133 	 * it will choose the other port or we will get afu_rc=0x20 (no_channel)
134 	 * if there is no valid port to use.
138 	 * NOLOGI or LINKDOWN can be retried if the other port is up.
147 #define SISL_FC_RC_NOLOGI	0x54	/* port not logged in, in-flight cmds */
150 #define SISL_FC_RC_LINKDOWN	0x57	/* link down, in-flight cmds */
180 	u8 port;  member
222 /* MMIO space is required to support only 64-bit access */
225  * This AFU has two mechanisms to deal with endian-ness.
227  * below that specifies the endian-ness of the host.
228  * The other is a per context (i.e. application) specification
231  * endian-ness is set to be the same as the host.
233  * As per the SISlite spec, the MMIO registers are always
245 /* per context host transport MMIO  */
247 	__be64 endian_ctrl;	/* Per context Endian Control. The AFU will
299 /* per context provisioning & control MMIO */
326 	 * In cxlflash, FC port/link are arranged in port pairs, each
429 #define CXLFLASH_NUM_FC_PORTS_PER_BANK	2	/* fixed # of ports per bank */
433 #define CXLFLASH_MAX_CONTEXT	512	/* number of contexts per AFU */
434 #define CXLFLASH_NUM_VLUNS	512	/* number of vluns per AFU/port */
435 #define CXLFLASH_NUM_REGS	512	/* number of registers per port */
450 	struct fc_port_bank bank[CXLFLASH_MAX_FC_BANKS]; /* pages 2 - 9 */
452 	/* pages 10 - 15 are reserved */
459  *	+-------------------------------+
461  *	|        (per context)          |
463  *	+-------------------------------+
464  *	|    512 * 128 B per context    |
467  *	+-------------------------------+
470  *	+-------------------------------+
490  * LXT - LBA Translation Table
503  * RHT - Resource Handle Table
504  * Per the SISlite spec, RHT entries are to be 16-byte aligned
549 #define PORT_MASK(_n)	((1 << (_n)) - 1)