390 lines
9.3 KiB
C
390 lines
9.3 KiB
C
/*
|
|
* linux/include/asm-s390/qdio.h
|
|
*
|
|
* Copyright 2000,2008 IBM Corp.
|
|
* Author(s): Utz Bacher <utz.bacher@de.ibm.com>
|
|
* Jan Glauber <jang@linux.vnet.ibm.com>
|
|
*
|
|
*/
|
|
#ifndef __QDIO_H__
|
|
#define __QDIO_H__
|
|
|
|
#include <linux/interrupt.h>
|
|
#include <asm/cio.h>
|
|
#include <asm/ccwdev.h>
|
|
|
|
#define QDIO_MAX_QUEUES_PER_IRQ 32
|
|
#define QDIO_MAX_BUFFERS_PER_Q 128
|
|
#define QDIO_MAX_BUFFERS_MASK (QDIO_MAX_BUFFERS_PER_Q - 1)
|
|
#define QDIO_MAX_ELEMENTS_PER_BUFFER 16
|
|
#define QDIO_SBAL_SIZE 256
|
|
|
|
#define QDIO_QETH_QFMT 0
|
|
#define QDIO_ZFCP_QFMT 1
|
|
#define QDIO_IQDIO_QFMT 2
|
|
|
|
/**
|
|
* struct qdesfmt0 - queue descriptor, format 0
|
|
* @sliba: storage list information block address
|
|
* @sla: storage list address
|
|
* @slsba: storage list state block address
|
|
* @akey: access key for DLIB
|
|
* @bkey: access key for SL
|
|
* @ckey: access key for SBALs
|
|
* @dkey: access key for SLSB
|
|
*/
|
|
struct qdesfmt0 {
|
|
u64 sliba;
|
|
u64 sla;
|
|
u64 slsba;
|
|
u32 : 32;
|
|
u32 akey : 4;
|
|
u32 bkey : 4;
|
|
u32 ckey : 4;
|
|
u32 dkey : 4;
|
|
u32 : 16;
|
|
} __attribute__ ((packed));
|
|
|
|
/**
|
|
* struct qdr - queue description record (QDR)
|
|
* @qfmt: queue format
|
|
* @pfmt: implementation dependent parameter format
|
|
* @ac: adapter characteristics
|
|
* @iqdcnt: input queue descriptor count
|
|
* @oqdcnt: output queue descriptor count
|
|
* @iqdsz: inpout queue descriptor size
|
|
* @oqdsz: output queue descriptor size
|
|
* @qiba: queue information block address
|
|
* @qkey: queue information block key
|
|
* @qdf0: queue descriptions
|
|
*/
|
|
struct qdr {
|
|
u32 qfmt : 8;
|
|
u32 pfmt : 8;
|
|
u32 : 8;
|
|
u32 ac : 8;
|
|
u32 : 8;
|
|
u32 iqdcnt : 8;
|
|
u32 : 8;
|
|
u32 oqdcnt : 8;
|
|
u32 : 8;
|
|
u32 iqdsz : 8;
|
|
u32 : 8;
|
|
u32 oqdsz : 8;
|
|
/* private: */
|
|
u32 res[9];
|
|
/* public: */
|
|
u64 qiba;
|
|
u32 : 32;
|
|
u32 qkey : 4;
|
|
u32 : 28;
|
|
struct qdesfmt0 qdf0[126];
|
|
} __attribute__ ((packed, aligned(4096)));
|
|
|
|
#define QIB_AC_OUTBOUND_PCI_SUPPORTED 0x40
|
|
#define QIB_RFLAGS_ENABLE_QEBSM 0x80
|
|
|
|
/**
|
|
* struct qib - queue information block (QIB)
|
|
* @qfmt: queue format
|
|
* @pfmt: implementation dependent parameter format
|
|
* @rflags: QEBSM
|
|
* @ac: adapter characteristics
|
|
* @isliba: absolute address of first input SLIB
|
|
* @osliba: absolute address of first output SLIB
|
|
* @ebcnam: adapter identifier in EBCDIC
|
|
* @parm: implementation dependent parameters
|
|
*/
|
|
struct qib {
|
|
u32 qfmt : 8;
|
|
u32 pfmt : 8;
|
|
u32 rflags : 8;
|
|
u32 ac : 8;
|
|
u32 : 32;
|
|
u64 isliba;
|
|
u64 osliba;
|
|
u32 : 32;
|
|
u32 : 32;
|
|
u8 ebcnam[8];
|
|
/* private: */
|
|
u8 res[88];
|
|
/* public: */
|
|
u8 parm[QDIO_MAX_BUFFERS_PER_Q];
|
|
} __attribute__ ((packed, aligned(256)));
|
|
|
|
/**
|
|
* struct slibe - storage list information block element (SLIBE)
|
|
* @parms: implementation dependent parameters
|
|
*/
|
|
struct slibe {
|
|
u64 parms;
|
|
};
|
|
|
|
/**
|
|
* struct slib - storage list information block (SLIB)
|
|
* @nsliba: next SLIB address (if any)
|
|
* @sla: SL address
|
|
* @slsba: SLSB address
|
|
* @slibe: SLIB elements
|
|
*/
|
|
struct slib {
|
|
u64 nsliba;
|
|
u64 sla;
|
|
u64 slsba;
|
|
/* private: */
|
|
u8 res[1000];
|
|
/* public: */
|
|
struct slibe slibe[QDIO_MAX_BUFFERS_PER_Q];
|
|
} __attribute__ ((packed, aligned(2048)));
|
|
|
|
/**
|
|
* struct sbal_flags - storage block address list flags
|
|
* @last: last entry
|
|
* @cont: contiguous storage
|
|
* @frag: fragmentation
|
|
*/
|
|
struct sbal_flags {
|
|
u8 : 1;
|
|
u8 last : 1;
|
|
u8 cont : 1;
|
|
u8 : 1;
|
|
u8 frag : 2;
|
|
u8 : 2;
|
|
} __attribute__ ((packed));
|
|
|
|
#define SBAL_FLAGS_FIRST_FRAG 0x04000000UL
|
|
#define SBAL_FLAGS_MIDDLE_FRAG 0x08000000UL
|
|
#define SBAL_FLAGS_LAST_FRAG 0x0c000000UL
|
|
#define SBAL_FLAGS_LAST_ENTRY 0x40000000UL
|
|
#define SBAL_FLAGS_CONTIGUOUS 0x20000000UL
|
|
|
|
#define SBAL_FLAGS0_DATA_CONTINUATION 0x20UL
|
|
|
|
/* Awesome OpenFCP extensions */
|
|
#define SBAL_FLAGS0_TYPE_STATUS 0x00UL
|
|
#define SBAL_FLAGS0_TYPE_WRITE 0x08UL
|
|
#define SBAL_FLAGS0_TYPE_READ 0x10UL
|
|
#define SBAL_FLAGS0_TYPE_WRITE_READ 0x18UL
|
|
#define SBAL_FLAGS0_MORE_SBALS 0x04UL
|
|
#define SBAL_FLAGS0_COMMAND 0x02UL
|
|
#define SBAL_FLAGS0_LAST_SBAL 0x00UL
|
|
#define SBAL_FLAGS0_ONLY_SBAL SBAL_FLAGS0_COMMAND
|
|
#define SBAL_FLAGS0_MIDDLE_SBAL SBAL_FLAGS0_MORE_SBALS
|
|
#define SBAL_FLAGS0_FIRST_SBAL SBAL_FLAGS0_MORE_SBALS | SBAL_FLAGS0_COMMAND
|
|
#define SBAL_FLAGS0_PCI 0x40
|
|
|
|
/**
|
|
* struct sbal_sbalf_0 - sbal flags for sbale 0
|
|
* @pci: PCI indicator
|
|
* @cont: data continuation
|
|
* @sbtype: storage-block type (FCP)
|
|
*/
|
|
struct sbal_sbalf_0 {
|
|
u8 : 1;
|
|
u8 pci : 1;
|
|
u8 cont : 1;
|
|
u8 sbtype : 2;
|
|
u8 : 3;
|
|
} __attribute__ ((packed));
|
|
|
|
/**
|
|
* struct sbal_sbalf_1 - sbal flags for sbale 1
|
|
* @key: storage key
|
|
*/
|
|
struct sbal_sbalf_1 {
|
|
u8 : 4;
|
|
u8 key : 4;
|
|
} __attribute__ ((packed));
|
|
|
|
/**
|
|
* struct sbal_sbalf_14 - sbal flags for sbale 14
|
|
* @erridx: error index
|
|
*/
|
|
struct sbal_sbalf_14 {
|
|
u8 : 4;
|
|
u8 erridx : 4;
|
|
} __attribute__ ((packed));
|
|
|
|
/**
|
|
* struct sbal_sbalf_15 - sbal flags for sbale 15
|
|
* @reason: reason for error state
|
|
*/
|
|
struct sbal_sbalf_15 {
|
|
u8 reason;
|
|
} __attribute__ ((packed));
|
|
|
|
/**
|
|
* union sbal_sbalf - storage block address list flags
|
|
* @i0: sbalf0
|
|
* @i1: sbalf1
|
|
* @i14: sbalf14
|
|
* @i15: sblaf15
|
|
* @value: raw value
|
|
*/
|
|
union sbal_sbalf {
|
|
struct sbal_sbalf_0 i0;
|
|
struct sbal_sbalf_1 i1;
|
|
struct sbal_sbalf_14 i14;
|
|
struct sbal_sbalf_15 i15;
|
|
u8 value;
|
|
};
|
|
|
|
/**
|
|
* struct qdio_buffer_element - SBAL entry
|
|
* @flags: flags
|
|
* @length: length
|
|
* @addr: address
|
|
*/
|
|
struct qdio_buffer_element {
|
|
u32 flags;
|
|
u32 length;
|
|
#ifdef CONFIG_32BIT
|
|
/* private: */
|
|
void *reserved;
|
|
/* public: */
|
|
#endif
|
|
void *addr;
|
|
} __attribute__ ((packed, aligned(16)));
|
|
|
|
/**
|
|
* struct qdio_buffer - storage block address list (SBAL)
|
|
* @element: SBAL entries
|
|
*/
|
|
struct qdio_buffer {
|
|
struct qdio_buffer_element element[QDIO_MAX_ELEMENTS_PER_BUFFER];
|
|
} __attribute__ ((packed, aligned(256)));
|
|
|
|
/**
|
|
* struct sl_element - storage list entry
|
|
* @sbal: absolute SBAL address
|
|
*/
|
|
struct sl_element {
|
|
#ifdef CONFIG_32BIT
|
|
/* private: */
|
|
unsigned long reserved;
|
|
/* public: */
|
|
#endif
|
|
unsigned long sbal;
|
|
} __attribute__ ((packed));
|
|
|
|
/**
|
|
* struct sl - storage list (SL)
|
|
* @element: SL entries
|
|
*/
|
|
struct sl {
|
|
struct sl_element element[QDIO_MAX_BUFFERS_PER_Q];
|
|
} __attribute__ ((packed, aligned(1024)));
|
|
|
|
/**
|
|
* struct slsb - storage list state block (SLSB)
|
|
* @val: state per buffer
|
|
*/
|
|
struct slsb {
|
|
u8 val[QDIO_MAX_BUFFERS_PER_Q];
|
|
} __attribute__ ((packed, aligned(256)));
|
|
|
|
struct qdio_ssqd_desc {
|
|
u8 flags;
|
|
u8:8;
|
|
u16 sch;
|
|
u8 qfmt;
|
|
u8 parm;
|
|
u8 qdioac1;
|
|
u8 sch_class;
|
|
u8 pcnt;
|
|
u8 icnt;
|
|
u8:8;
|
|
u8 ocnt;
|
|
u8:8;
|
|
u8 mbccnt;
|
|
u16 qdioac2;
|
|
u64 sch_token;
|
|
u8 mro;
|
|
u8 mri;
|
|
u8:8;
|
|
u8 sbalic;
|
|
u16:16;
|
|
u8:8;
|
|
u8 mmwc;
|
|
} __attribute__ ((packed));
|
|
|
|
/* params are: ccw_device, qdio_error, queue_number,
|
|
first element processed, number of elements processed, int_parm */
|
|
typedef void qdio_handler_t(struct ccw_device *, unsigned int, int,
|
|
int, int, unsigned long);
|
|
|
|
/* qdio errors reported to the upper-layer program */
|
|
#define QDIO_ERROR_SIGA_TARGET 0x02
|
|
#define QDIO_ERROR_SIGA_ACCESS_EXCEPTION 0x10
|
|
#define QDIO_ERROR_SIGA_BUSY 0x20
|
|
#define QDIO_ERROR_ACTIVATE_CHECK_CONDITION 0x40
|
|
#define QDIO_ERROR_SLSB_STATE 0x80
|
|
|
|
/* for qdio_initialize */
|
|
#define QDIO_INBOUND_0COPY_SBALS 0x01
|
|
#define QDIO_OUTBOUND_0COPY_SBALS 0x02
|
|
#define QDIO_USE_OUTBOUND_PCIS 0x04
|
|
|
|
/* for qdio_cleanup */
|
|
#define QDIO_FLAG_CLEANUP_USING_CLEAR 0x01
|
|
#define QDIO_FLAG_CLEANUP_USING_HALT 0x02
|
|
|
|
/**
|
|
* struct qdio_initialize - qdio initalization data
|
|
* @cdev: associated ccw device
|
|
* @q_format: queue format
|
|
* @adapter_name: name for the adapter
|
|
* @qib_param_field_format: format for qib_parm_field
|
|
* @qib_param_field: pointer to 128 bytes or NULL, if no param field
|
|
* @input_slib_elements: pointer to no_input_qs * 128 words of data or NULL
|
|
* @output_slib_elements: pointer to no_output_qs * 128 words of data or NULL
|
|
* @no_input_qs: number of input queues
|
|
* @no_output_qs: number of output queues
|
|
* @input_handler: handler to be called for input queues
|
|
* @output_handler: handler to be called for output queues
|
|
* @int_parm: interruption parameter
|
|
* @flags: initialization flags
|
|
* @input_sbal_addr_array: address of no_input_qs * 128 pointers
|
|
* @output_sbal_addr_array: address of no_output_qs * 128 pointers
|
|
*/
|
|
struct qdio_initialize {
|
|
struct ccw_device *cdev;
|
|
unsigned char q_format;
|
|
unsigned char adapter_name[8];
|
|
unsigned int qib_param_field_format;
|
|
unsigned char *qib_param_field;
|
|
unsigned long *input_slib_elements;
|
|
unsigned long *output_slib_elements;
|
|
unsigned int no_input_qs;
|
|
unsigned int no_output_qs;
|
|
qdio_handler_t *input_handler;
|
|
qdio_handler_t *output_handler;
|
|
unsigned long int_parm;
|
|
unsigned long flags;
|
|
void **input_sbal_addr_array;
|
|
void **output_sbal_addr_array;
|
|
};
|
|
|
|
#define QDIO_STATE_INACTIVE 0x00000002 /* after qdio_cleanup */
|
|
#define QDIO_STATE_ESTABLISHED 0x00000004 /* after qdio_establish */
|
|
#define QDIO_STATE_ACTIVE 0x00000008 /* after qdio_activate */
|
|
#define QDIO_STATE_STOPPED 0x00000010 /* after queues went down */
|
|
|
|
#define QDIO_FLAG_SYNC_INPUT 0x01
|
|
#define QDIO_FLAG_SYNC_OUTPUT 0x02
|
|
#define QDIO_FLAG_PCI_OUT 0x10
|
|
|
|
extern int qdio_initialize(struct qdio_initialize *);
|
|
extern int qdio_allocate(struct qdio_initialize *);
|
|
extern int qdio_establish(struct qdio_initialize *);
|
|
extern int qdio_activate(struct ccw_device *);
|
|
|
|
extern int do_QDIO(struct ccw_device *cdev, unsigned int callflags,
|
|
int q_nr, unsigned int bufnr, unsigned int count);
|
|
extern int qdio_cleanup(struct ccw_device*, int);
|
|
extern int qdio_shutdown(struct ccw_device*, int);
|
|
extern int qdio_free(struct ccw_device *);
|
|
extern int qdio_get_ssqd_desc(struct ccw_device *dev, struct qdio_ssqd_desc*);
|
|
|
|
#endif /* __QDIO_H__ */
|