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-rw-r--r--include/asm-s390/qdio.h401
1 files changed, 401 insertions, 0 deletions
diff --git a/include/asm-s390/qdio.h b/include/asm-s390/qdio.h
new file mode 100644
index 0000000..0ddf0a8
--- /dev/null
+++ b/include/asm-s390/qdio.h
@@ -0,0 +1,401 @@
+/*
+ * linux/include/asm/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__
+
+#define VERSION_QDIO_H "$Revision: 1.57 $"
+
+/* 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
+
+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
+struct qib {
+ 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; /* 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__ */
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