| /* |
| * linux/include/asm-s390/qdio.h |
| * |
| * Linux for S/390 QDIO base support, Hipersocket base support |
| * version 2 |
| * |
| * Copyright 2000,2002 IBM Corporation |
| * Author(s): Utz Bacher <utz.bacher@de.ibm.com> |
| * |
| */ |
| #ifndef __QDIO_H__ |
| #define __QDIO_H__ |
| |
| /* note, that most of the typedef's are from ingo. */ |
| |
| #include <linux/interrupt.h> |
| #include <asm/cio.h> |
| #include <asm/ccwdev.h> |
| |
| #define QDIO_NAME "qdio " |
| |
| #ifndef __s390x__ |
| #define QDIO_32_BIT |
| #endif /* __s390x__ */ |
| |
| /**** CONSTANTS, that are relied on without using these symbols *****/ |
| #define QDIO_MAX_QUEUES_PER_IRQ 32 /* used in width of unsigned int */ |
| /************************ END of CONSTANTS **************************/ |
| #define QDIO_MAX_BUFFERS_PER_Q 128 /* must be a power of 2 (%x=&(x-1)*/ |
| #define QDIO_BUF_ORDER 7 /* 2**this == number of pages used for sbals in 1 q */ |
| #define QDIO_MAX_ELEMENTS_PER_BUFFER 16 |
| #define SBAL_SIZE 256 |
| |
| #define QDIO_QETH_QFMT 0 |
| #define QDIO_ZFCP_QFMT 1 |
| #define QDIO_IQDIO_QFMT 2 |
| #define QDIO_IQDIO_QFMT_ASYNCH 3 |
| |
| struct qdio_buffer_element{ |
| unsigned int flags; |
| unsigned int length; |
| #ifdef QDIO_32_BIT |
| void *reserved; |
| #endif /* QDIO_32_BIT */ |
| void *addr; |
| } __attribute__ ((packed,aligned(16))); |
| |
| struct qdio_buffer{ |
| volatile struct qdio_buffer_element element[16]; |
| } __attribute__ ((packed,aligned(256))); |
| |
| |
| /* params are: ccw_device, status, qdio_error, siga_error, |
| queue_number, first element processed, number of elements processed, |
| int_parm */ |
| typedef void qdio_handler_t(struct ccw_device *,unsigned int,unsigned int, |
| unsigned int,unsigned int,int,int,unsigned long); |
| |
| |
| #define QDIO_STATUS_INBOUND_INT 0x01 |
| #define QDIO_STATUS_OUTBOUND_INT 0x02 |
| #define QDIO_STATUS_LOOK_FOR_ERROR 0x04 |
| #define QDIO_STATUS_MORE_THAN_ONE_QDIO_ERROR 0x08 |
| #define QDIO_STATUS_MORE_THAN_ONE_SIGA_ERROR 0x10 |
| #define QDIO_STATUS_ACTIVATE_CHECK_CONDITION 0x20 |
| |
| #define QDIO_SIGA_ERROR_ACCESS_EXCEPTION 0x10 |
| #define QDIO_SIGA_ERROR_B_BIT_SET 0x20 |
| |
| /* 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 { |
| struct ccw_device *cdev; |
| unsigned char q_format; |
| unsigned char adapter_name[8]; |
| unsigned int qib_param_field_format; /*adapter dependent*/ |
| /* pointer to 128 bytes or NULL, if no param field */ |
| unsigned char *qib_param_field; /* adapter dependent */ |
| /* pointer to no_queues*128 words of data or NULL */ |
| unsigned long *input_slib_elements; |
| unsigned long *output_slib_elements; |
| unsigned int min_input_threshold; |
| unsigned int max_input_threshold; |
| unsigned int min_output_threshold; |
| unsigned int max_output_threshold; |
| 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; /* addr of n*128 void ptrs */ |
| void **output_sbal_addr_array; /* addr of n*128 void ptrs */ |
| }; |
| |
| extern int qdio_initialize(struct qdio_initialize *init_data); |
| extern int qdio_allocate(struct qdio_initialize *init_data); |
| extern int qdio_establish(struct qdio_initialize *init_data); |
| |
| extern int qdio_activate(struct ccw_device *,int flags); |
| |
| #define QDIO_STATE_MUST_USE_OUTB_PCI 0x00000001 |
| #define QDIO_STATE_INACTIVE 0x00000002 /* after qdio_cleanup */ |
| #define QDIO_STATE_ESTABLISHED 0x00000004 /* after qdio_initialize */ |
| #define QDIO_STATE_ACTIVE 0x00000008 /* after qdio_activate */ |
| #define QDIO_STATE_STOPPED 0x00000010 /* after queues went down */ |
| extern unsigned long qdio_get_status(int irq); |
| |
| |
| #define QDIO_FLAG_SYNC_INPUT 0x01 |
| #define QDIO_FLAG_SYNC_OUTPUT 0x02 |
| #define QDIO_FLAG_UNDER_INTERRUPT 0x04 |
| #define QDIO_FLAG_NO_INPUT_INTERRUPT_CONTEXT 0x08 /* no effect on |
| adapter interrupts */ |
| #define QDIO_FLAG_DONT_SIGA 0x10 |
| |
| extern int do_QDIO(struct ccw_device*, unsigned int flags, |
| unsigned int queue_number, |
| unsigned int qidx,unsigned int count, |
| struct qdio_buffer *buffers); |
| |
| extern int qdio_synchronize(struct ccw_device*, unsigned int flags, |
| unsigned int queue_number); |
| |
| extern int qdio_cleanup(struct ccw_device*, int how); |
| extern int qdio_shutdown(struct ccw_device*, int how); |
| extern int qdio_free(struct ccw_device*); |
| |
| unsigned char qdio_get_slsb_state(struct ccw_device*, unsigned int flag, |
| unsigned int queue_number, |
| unsigned int qidx); |
| |
| extern void qdio_init_scrubber(void); |
| |
| struct qdesfmt0 { |
| #ifdef QDIO_32_BIT |
| unsigned long res1; /* reserved */ |
| #endif /* QDIO_32_BIT */ |
| unsigned long sliba; /* storage-list-information-block |
| address */ |
| #ifdef QDIO_32_BIT |
| unsigned long res2; /* reserved */ |
| #endif /* QDIO_32_BIT */ |
| unsigned long sla; /* storage-list address */ |
| #ifdef QDIO_32_BIT |
| unsigned long res3; /* reserved */ |
| #endif /* QDIO_32_BIT */ |
| unsigned long slsba; /* storage-list-state-block address */ |
| unsigned int res4; /* reserved */ |
| unsigned int akey : 4; /* access key for DLIB */ |
| unsigned int bkey : 4; /* access key for SL */ |
| unsigned int ckey : 4; /* access key for SBALs */ |
| unsigned int dkey : 4; /* access key for SLSB */ |
| unsigned int res5 : 16; /* reserved */ |
| } __attribute__ ((packed)); |
| |
| /* |
| * Queue-Description record (QDR) |
| */ |
| struct qdr { |
| unsigned int qfmt : 8; /* queue format */ |
| unsigned int pfmt : 8; /* impl. dep. parameter format */ |
| unsigned int res1 : 8; /* reserved */ |
| unsigned int ac : 8; /* adapter characteristics */ |
| unsigned int res2 : 8; /* reserved */ |
| unsigned int iqdcnt : 8; /* input-queue-descriptor count */ |
| unsigned int res3 : 8; /* reserved */ |
| unsigned int oqdcnt : 8; /* output-queue-descriptor count */ |
| unsigned int res4 : 8; /* reserved */ |
| unsigned int iqdsz : 8; /* input-queue-descriptor size */ |
| unsigned int res5 : 8; /* reserved */ |
| unsigned int oqdsz : 8; /* output-queue-descriptor size */ |
| unsigned int res6[9]; /* reserved */ |
| #ifdef QDIO_32_BIT |
| unsigned long res7; /* reserved */ |
| #endif /* QDIO_32_BIT */ |
| unsigned long qiba; /* queue-information-block address */ |
| unsigned int res8; /* reserved */ |
| unsigned int qkey : 4; /* queue-informatio-block key */ |
| unsigned int res9 : 28; /* reserved */ |
| /* union _qd {*/ /* why this? */ |
| struct qdesfmt0 qdf0[126]; |
| /* } qd;*/ |
| } __attribute__ ((packed,aligned(4096))); |
| |
| |
| /* |
| * queue information block (QIB) |
| */ |
| #define QIB_AC_INBOUND_PCI_SUPPORTED 0x80 |
| #define QIB_AC_OUTBOUND_PCI_SUPPORTED 0x40 |
| #define QIB_RFLAGS_ENABLE_QEBSM 0x80 |
| |
| struct qib { |
| unsigned int qfmt : 8; /* queue format */ |
| unsigned int pfmt : 8; /* impl. dep. parameter format */ |
| unsigned int rflags : 8; /* QEBSM */ |
| unsigned int ac : 8; /* adapter characteristics */ |
| unsigned int res2; /* reserved */ |
| #ifdef QDIO_32_BIT |
| unsigned long res3; /* reserved */ |
| #endif /* QDIO_32_BIT */ |
| unsigned long isliba; /* absolute address of 1st |
| input SLIB */ |
| #ifdef QDIO_32_BIT |
| unsigned long res4; /* reserved */ |
| #endif /* QDIO_32_BIT */ |
| unsigned long osliba; /* absolute address of 1st |
| output SLIB */ |
| unsigned int res5; /* reserved */ |
| unsigned int res6; /* reserved */ |
| unsigned char ebcnam[8]; /* adapter identifier in EBCDIC */ |
| unsigned char res7[88]; /* reserved */ |
| unsigned char parm[QDIO_MAX_BUFFERS_PER_Q]; |
| /* implementation dependent |
| parameters */ |
| } __attribute__ ((packed,aligned(256))); |
| |
| |
| /* |
| * storage-list-information block element (SLIBE) |
| */ |
| struct slibe { |
| #ifdef QDIO_32_BIT |
| unsigned long res; /* reserved */ |
| #endif /* QDIO_32_BIT */ |
| unsigned long parms; /* implementation dependent |
| parameters */ |
| }; |
| |
| /* |
| * storage-list-information block (SLIB) |
| */ |
| struct slib { |
| #ifdef QDIO_32_BIT |
| unsigned long res1; /* reserved */ |
| #endif /* QDIO_32_BIT */ |
| unsigned long nsliba; /* next SLIB address (if any) */ |
| #ifdef QDIO_32_BIT |
| unsigned long res2; /* reserved */ |
| #endif /* QDIO_32_BIT */ |
| unsigned long sla; /* SL address */ |
| #ifdef QDIO_32_BIT |
| unsigned long res3; /* reserved */ |
| #endif /* QDIO_32_BIT */ |
| unsigned long slsba; /* SLSB address */ |
| unsigned char res4[1000]; /* reserved */ |
| struct slibe slibe[QDIO_MAX_BUFFERS_PER_Q]; /* SLIB elements */ |
| } __attribute__ ((packed,aligned(2048))); |
| |
| struct sbal_flags { |
| unsigned char res1 : 1; /* reserved */ |
| unsigned char last : 1; /* last entry */ |
| unsigned char cont : 1; /* contiguous storage */ |
| unsigned char res2 : 1; /* reserved */ |
| unsigned char frag : 2; /* fragmentation (s.below) */ |
| unsigned char res3 : 2; /* reserved */ |
| } __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 |
| /* Naught of interest beyond this point */ |
| |
| #define SBAL_FLAGS0_PCI 0x40 |
| struct sbal_sbalf_0 { |
| unsigned char res1 : 1; /* reserved */ |
| unsigned char pci : 1; /* PCI indicator */ |
| unsigned char cont : 1; /* data continuation */ |
| unsigned char sbtype: 2; /* storage-block type (OpenFCP) */ |
| unsigned char res2 : 3; /* reserved */ |
| } __attribute__ ((packed)); |
| |
| struct sbal_sbalf_1 { |
| unsigned char res1 : 4; /* reserved */ |
| unsigned char key : 4; /* storage key */ |
| } __attribute__ ((packed)); |
| |
| struct sbal_sbalf_14 { |
| unsigned char res1 : 4; /* reserved */ |
| unsigned char erridx : 4; /* error index */ |
| } __attribute__ ((packed)); |
| |
| struct sbal_sbalf_15 { |
| unsigned char reason; /* reserved */ |
| } __attribute__ ((packed)); |
| |
| union sbal_sbalf { |
| struct sbal_sbalf_0 i0; |
| struct sbal_sbalf_1 i1; |
| struct sbal_sbalf_14 i14; |
| struct sbal_sbalf_15 i15; |
| unsigned char value; |
| }; |
| |
| struct sbal_element { |
| union { |
| struct sbal_flags bits; /* flags */ |
| unsigned char value; |
| } flags; |
| unsigned int res1 : 16; /* reserved */ |
| union sbal_sbalf sbalf; /* SBAL flags */ |
| unsigned int res2 : 16; /* reserved */ |
| unsigned int count : 16; /* data count */ |
| #ifdef QDIO_32_BIT |
| unsigned long res3; /* reserved */ |
| #endif /* QDIO_32_BIT */ |
| unsigned long addr; /* absolute data address */ |
| } __attribute__ ((packed,aligned(16))); |
| |
| /* |
| * strorage-block access-list (SBAL) |
| */ |
| struct sbal { |
| struct sbal_element element[QDIO_MAX_ELEMENTS_PER_BUFFER]; |
| } __attribute__ ((packed,aligned(256))); |
| |
| /* |
| * storage-list (SL) |
| */ |
| struct sl_element { |
| #ifdef QDIO_32_BIT |
| unsigned long res; /* reserved */ |
| #endif /* QDIO_32_BIT */ |
| unsigned long sbal; /* absolute SBAL address */ |
| } __attribute__ ((packed)); |
| |
| struct sl { |
| struct sl_element element[QDIO_MAX_BUFFERS_PER_Q]; |
| } __attribute__ ((packed,aligned(1024))); |
| |
| /* |
| * storage-list-state block (SLSB) |
| */ |
| struct slsb_flags { |
| unsigned char owner : 2; /* SBAL owner */ |
| unsigned char type : 1; /* buffer type */ |
| unsigned char state : 5; /* processing state */ |
| } __attribute__ ((packed)); |
| |
| |
| struct slsb { |
| union { |
| unsigned char val[QDIO_MAX_BUFFERS_PER_Q]; |
| struct slsb_flags flags[QDIO_MAX_BUFFERS_PER_Q]; |
| } acc; |
| } __attribute__ ((packed,aligned(256))); |
| |
| /* |
| * SLSB values |
| */ |
| #define SLSB_OWNER_PROG 1 |
| #define SLSB_OWNER_CU 2 |
| |
| #define SLSB_TYPE_INPUT 0 |
| #define SLSB_TYPE_OUTPUT 1 |
| |
| #define SLSB_STATE_NOT_INIT 0 |
| #define SLSB_STATE_EMPTY 1 |
| #define SLSB_STATE_PRIMED 2 |
| #define SLSB_STATE_HALTED 0xe |
| #define SLSB_STATE_ERROR 0xf |
| |
| #define SLSB_P_INPUT_NOT_INIT 0x80 |
| #define SLSB_P_INPUT_PROCESSING 0x81 |
| #define SLSB_CU_INPUT_EMPTY 0x41 |
| #define SLSB_P_INPUT_PRIMED 0x82 |
| #define SLSB_P_INPUT_HALTED 0x8E |
| #define SLSB_P_INPUT_ERROR 0x8F |
| |
| #define SLSB_P_OUTPUT_NOT_INIT 0xA0 |
| #define SLSB_P_OUTPUT_EMPTY 0xA1 |
| #define SLSB_CU_OUTPUT_PRIMED 0x62 |
| #define SLSB_P_OUTPUT_HALTED 0xAE |
| #define SLSB_P_OUTPUT_ERROR 0xAF |
| |
| #define SLSB_ERROR_DURING_LOOKUP 0xFF |
| |
| #endif /* __QDIO_H__ */ |