patch-2.4.22 linux-2.4.22/drivers/s390/qdio.c
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- Lines: 3626
- Date:
2003-08-25 04:44:42.000000000 -0700
- Orig file:
linux-2.4.21/drivers/s390/qdio.c
- Orig date:
1969-12-31 16:00:00.000000000 -0800
diff -urN linux-2.4.21/drivers/s390/qdio.c linux-2.4.22/drivers/s390/qdio.c
@@ -0,0 +1,3625 @@
+/*
+ *
+ * linux/drivers/s390/qdio.c
+ *
+ * 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>
+ *
+ * Restriction: only 63 iqdio subchannels would have its own indicator,
+ * after that, subsequent subchannels share one indicator
+ *
+ *
+ *
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2, or (at your option)
+ * any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ */
+
+/* we want the eyecatcher to be at the top of the code */
+void volatile qdio_eyecatcher(void)
+{
+ return;
+}
+
+#include <linux/config.h>
+
+#include <linux/module.h>
+
+#include <linux/version.h>
+#include <linux/slab.h>
+#include <linux/kernel.h>
+#include <linux/proc_fs.h>
+#include <linux/init.h>
+#include <linux/timer.h>
+#include <linux/mm.h>
+
+#include <asm/irq.h>
+#include <asm/io.h>
+#include <asm/atomic.h>
+#include <asm/semaphore.h>
+#include <asm/page.h>
+
+#include <asm/debug.h>
+
+#include <asm/qdio.h>
+
+#define VERSION_QDIO_C "$Revision: 1.145 $"
+
+/****************** MODULE PARAMETER VARIABLES ********************/
+MODULE_AUTHOR("Utz Bacher <utz.bacher@de.ibm.com>");
+MODULE_DESCRIPTION("QDIO base support version 2, " \
+ "Copyright 2000 IBM Corporation");
+#if (LINUX_VERSION_CODE >= KERNEL_VERSION(2,4,12))
+MODULE_LICENSE("GPL");
+#endif
+
+/******************** HERE WE GO ***********************************/
+
+static const char *version="QDIO base support version 2 ("
+ VERSION_QDIO_C "/" VERSION_QDIO_H ")";
+
+#ifdef QDIO_PERFORMANCE_STATS
+static int proc_perf_file_registration;
+unsigned long i_p_c=0,i_p_nc=0,o_p_c=0,o_p_nc=0,ii_p_c=0,ii_p_nc=0;
+
+static struct {
+ unsigned int tl_runs;
+
+ unsigned int siga_outs;
+ unsigned int siga_ins;
+ unsigned int siga_syncs;
+ unsigned int pcis;
+ unsigned int thinints;
+ unsigned int fast_reqs;
+
+ __u64 start_time_outbound;
+ unsigned int outbound_cnt;
+ unsigned int outbound_time;
+ __u64 start_time_inbound;
+ unsigned int inbound_cnt;
+ unsigned int inbound_time;
+} perf_stats;
+
+#endif /* QDIO_PERFORMANCE_STATS */
+
+static int hydra_thinints=0;
+
+static int indicator_used[INDICATORS_PER_CACHELINE];
+static __u32 * volatile indicators;
+static __u32 volatile spare_indicator;
+
+static debug_info_t *qdio_dbf_setup=NULL;
+static debug_info_t *qdio_dbf_sbal=NULL;
+static debug_info_t *qdio_dbf_trace=NULL;
+static debug_info_t *qdio_dbf_sense=NULL;
+#ifdef QDIO_DBF_LIKE_HELL
+static debug_info_t *qdio_dbf_slsb_out=NULL;
+static debug_info_t *qdio_dbf_slsb_in=NULL;
+#endif /* QDIO_DBF_LIKE_HELL */
+
+static qdio_irq_t *first_irq[QDIO_IRQ_BUCKETS]={
+ [0 ... (QDIO_IRQ_BUCKETS-1)] = NULL
+};
+static rwlock_t irq_list_lock[QDIO_IRQ_BUCKETS]={
+ [0 ... (QDIO_IRQ_BUCKETS-1)] = RW_LOCK_UNLOCKED
+};
+
+static struct semaphore init_sema;
+
+static qdio_chsc_area_t *chsc_area;
+/* iQDIO stuff: */
+static volatile qdio_q_t *tiq_list=NULL; /* volatile as it could change
+ during a while loop */
+static spinlock_t ttiq_list_lock=SPIN_LOCK_UNLOCKED;
+static int register_thinint_result;
+static void tiqdio_tl(unsigned long);
+static DECLARE_TASKLET(tiqdio_tasklet,tiqdio_tl,0);
+
+#define HEXDUMP16(importance,header,ptr) \
+QDIO_PRINT_##importance(header "%02x %02x %02x %02x " \
+ "%02x %02x %02x %02x %02x %02x %02x %02x " \
+ "%02x %02x %02x %02x\n",*(((char*)ptr)), \
+ *(((char*)ptr)+1),*(((char*)ptr)+2), \
+ *(((char*)ptr)+3),*(((char*)ptr)+4), \
+ *(((char*)ptr)+5),*(((char*)ptr)+6), \
+ *(((char*)ptr)+7),*(((char*)ptr)+8), \
+ *(((char*)ptr)+9),*(((char*)ptr)+10), \
+ *(((char*)ptr)+11),*(((char*)ptr)+12), \
+ *(((char*)ptr)+13),*(((char*)ptr)+14), \
+ *(((char*)ptr)+15)); \
+QDIO_PRINT_##importance(header "%02x %02x %02x %02x %02x %02x %02x %02x " \
+ "%02x %02x %02x %02x %02x %02x %02x %02x\n", \
+ *(((char*)ptr)+16),*(((char*)ptr)+17), \
+ *(((char*)ptr)+18),*(((char*)ptr)+19), \
+ *(((char*)ptr)+20),*(((char*)ptr)+21), \
+ *(((char*)ptr)+22),*(((char*)ptr)+23), \
+ *(((char*)ptr)+24),*(((char*)ptr)+25), \
+ *(((char*)ptr)+26),*(((char*)ptr)+27), \
+ *(((char*)ptr)+28),*(((char*)ptr)+29), \
+ *(((char*)ptr)+30),*(((char*)ptr)+31));
+
+#define atomic_swap(a,b) xchg((int*)a.counter,b)
+
+/* not a macro, as one of the arguments is atomic_read */
+static inline int qdio_min(int a,int b)
+{
+ if (a<b)
+ return a;
+ else
+ return b;
+}
+
+/* unlikely as the later the better */
+#define SYNC_MEMORY if (unlikely(q->siga_sync)) qdio_siga_sync_q(q)
+#define SYNC_MEMORY_ALL if (unlikely(q->siga_sync)) \
+ qdio_siga_sync(q,~0U,~0U)
+#define SYNC_MEMORY_ALL_OUTB if (unlikely(q->siga_sync)) \
+ qdio_siga_sync(q,~0U,0)
+
+#define NOW qdio_get_micros()
+#define SAVE_TIMESTAMP(q) q->timing.last_transfer_time=NOW
+#define GET_SAVED_TIMESTAMP(q) (q->timing.last_transfer_time)
+#define SAVE_FRONTIER(q,val) q->last_move_ftc=val
+#define GET_SAVED_FRONTIER(q) (q->last_move_ftc)
+
+#define MY_MODULE_STRING(x) #x
+
+#ifdef QDIO_32_BIT
+#define QDIO_GET_32BIT_ADDR(x) ((__u32)(long)x)
+#else /* QDIO_32_BIT */
+#define QDIO_GET_32BIT_ADDR(x) ((__u32)(unsigned long)x)
+#endif /* QDIO_32_BIT */
+
+#define QDIO_PFIX_GET_ADDR(x) ((flags&QDIO_PFIX) ? \
+ pfix_get_addr(x):((unsigned long)x))
+
+/***************** SCRUBBER HELPER ROUTINES **********************/
+
+static inline volatile __u64 qdio_get_micros(void)
+{
+ __u64 time;
+
+ asm volatile ("STCK %0" : "=m" (time));
+ return time>>12; /* time>>12 is microseconds*/
+}
+static inline unsigned long qdio_get_millis(void)
+{
+ return (unsigned long)(qdio_get_micros()>>12);
+}
+
+static __inline__ int atomic_return_add (int i, atomic_t *v)
+{
+ int old, new;
+ __CS_LOOP(old, new, v, i, "ar");
+ return old;
+}
+
+static void qdio_wait_nonbusy(unsigned int timeout)
+{
+ unsigned int start;
+ char dbf_text[15];
+
+ sprintf(dbf_text,"wtnb%4x",timeout);
+ QDIO_DBF_TEXT3(0,trace,dbf_text);
+
+ start=qdio_get_millis();
+ for (;;) {
+ set_task_state(current,TASK_INTERRUPTIBLE);
+ if (qdio_get_millis()-start>timeout) {
+ goto out;
+ }
+ schedule_timeout(((start+timeout-qdio_get_millis())>>10)*HZ);
+ }
+out:
+ set_task_state(current,TASK_RUNNING);
+}
+
+static int qdio_wait_for_no_use_count(atomic_t *use_count)
+{
+ unsigned long start;
+
+ QDIO_DBF_TEXT3(0,trace,"wtnousec");
+ start=qdio_get_millis();
+ for (;;) {
+ if (qdio_get_millis()-start>QDIO_NO_USE_COUNT_TIMEOUT) {
+ QDIO_DBF_TEXT1(1,trace,"WTNOUSTO");
+ return -ETIME;
+ }
+ if (!atomic_read(use_count)) {
+ QDIO_DBF_TEXT3(0,trace,"wtnoused");
+ return 0;
+ }
+ qdio_wait_nonbusy(QDIO_NO_USE_COUNT_TIME);
+ }
+}
+
+/* unfortunately, we can't just xchg the values; in do_QDIO we want to reserve
+ * the q in any case, so that we'll not be interrupted when we are in
+ * qdio_mark_tiq... shouldn't have a really bad impact, as reserving almost
+ * ever works (last famous words) */
+static inline int qdio_reserve_q(qdio_q_t *q)
+{
+ return atomic_return_add(1,&q->use_count);
+}
+
+static inline void qdio_release_q(qdio_q_t *q)
+{
+ atomic_dec(&q->use_count);
+}
+#ifdef QDIO_DBF_LIKE_HELL
+#define set_slsb(x,y) \
+ if(q->queue_type==QDIO_TRACE_QTYPE) { \
+ if(q->is_input_q) { \
+ QDIO_DBF_HEX2(0,slsb_in,&q->slsb,QDIO_MAX_BUFFERS_PER_Q); \
+ } else { \
+ QDIO_DBF_HEX2(0,slsb_out,&q->slsb,QDIO_MAX_BUFFERS_PER_Q); \
+ } \
+ } \
+ qdio_set_slsb(x,y); \
+ if(q->queue_type==QDIO_TRACE_QTYPE) { \
+ if(q->is_input_q) { \
+ QDIO_DBF_HEX2(0,slsb_in,&q->slsb,QDIO_MAX_BUFFERS_PER_Q); \
+ } else { \
+ QDIO_DBF_HEX2(0,slsb_out,&q->slsb,QDIO_MAX_BUFFERS_PER_Q); \
+ } \
+ }
+#else /* QDIO_DBF_LIKE_HELL */
+#define set_slsb(x,y) qdio_set_slsb(x,y)
+#endif /* QDIO_DBF_LIKE_HELL */
+static volatile inline void qdio_set_slsb(volatile char *slsb,
+ unsigned char value)
+{
+ xchg((char*)slsb,value);
+}
+
+static inline int qdio_siga_sync(qdio_q_t *q,
+ unsigned int gpr2,
+ unsigned int gpr3)
+{
+ int cc;
+
+#ifdef QDIO_DBF_LIKE_HELL
+ QDIO_DBF_TEXT4(0,trace,"sigasync");
+ QDIO_DBF_HEX4(0,trace,&q,sizeof(int));
+ QDIO_DBF_HEX4(0,trace,&gpr2,sizeof(int));
+ QDIO_DBF_HEX4(0,trace,&gpr3,sizeof(int));
+#endif /* QDIO_DBF_LIKE_HELL */
+
+#ifdef QDIO_PERFORMANCE_STATS
+ perf_stats.siga_syncs++;
+#endif /* QDIO_PERFORMANCE_STATS */
+
+#ifdef QDIO_32_BIT
+ asm volatile (
+ "lhi 0,2 \n\t"
+ "lr 1,%1 \n\t"
+ "lr 2,%2 \n\t"
+ "lr 3,%3 \n\t"
+ "siga 0 \n\t"
+ "ipm %0 \n\t"
+ "srl %0,28 \n\t"
+ : "=d" (cc)
+ : "d" (0x10000|q->irq), "d" (gpr2), "d" (gpr3)
+ : "cc", "0", "1", "2", "3"
+ );
+#else /* QDIO_32_BIT */
+ asm volatile (
+ "lghi 0,2 \n\t"
+ "llgfr 1,%1 \n\t"
+ "llgfr 2,%2 \n\t"
+ "llgfr 3,%3 \n\t"
+ "siga 0 \n\t"
+ "ipm %0 \n\t"
+ "srl %0,28 \n\t"
+ : "=d" (cc)
+ : "d" (0x10000|q->irq), "d" (gpr2), "d" (gpr3)
+ : "cc", "0", "1", "2", "3"
+ );
+#endif /* QDIO_32_BIT */
+
+ if (cc) {
+#ifndef QDIO_DBF_LIKE_HELL
+ /* when QDIO_DBF_LIKE_HELL, we put that already out */
+ QDIO_DBF_TEXT3(0,trace,"sigasync");
+ QDIO_DBF_HEX3(0,trace,&q,sizeof(void*));
+#endif /* QDIO_DBF_LIKE_HELL */
+ QDIO_DBF_HEX3(0,trace,&cc,sizeof(int*));
+ }
+
+ return cc;
+}
+
+static inline int qdio_siga_sync_q(qdio_q_t *q)
+{
+ if (q->is_input_q) {
+ return qdio_siga_sync(q,0,q->mask);
+ } else {
+ return qdio_siga_sync(q,q->mask,0);
+ }
+}
+
+/* returns QDIO_SIGA_ERROR_ACCESS_EXCEPTION as cc, when SIGA returns
+ an access exception */
+static inline int qdio_siga_output(qdio_q_t *q)
+{
+ int cc;
+ __u32 busy_bit;
+ __u64 start_time=0;
+
+#ifdef QDIO_PERFORMANCE_STATS
+ perf_stats.siga_outs++;
+#endif /* QDIO_PERFORMANCE_STATS */
+
+#ifdef QDIO_DBF_LIKE_HELL
+ QDIO_DBF_TEXT4(0,trace,"sigaout");
+ QDIO_DBF_HEX4(0,trace,&q,sizeof(void*));
+#endif /* QDIO_DBF_LIKE_HELL */
+
+ for (;;) {
+
+#ifdef QDIO_32_BIT
+ asm volatile (
+ "lhi 0,0 \n\t"
+ "lr 1,%2 \n\t"
+ "lr 2,%3 \n\t"
+ "siga 0 \n\t"
+ "0:"
+ "ipm %0 \n\t"
+ "srl %0,28 \n\t"
+ "srl 0,31 \n\t"
+ "lr %1,0 \n\t"
+ "1: \n\t"
+ ".section .fixup,\"ax\"\n\t"
+ "2: \n\t"
+ "lhi %0,%4 \n\t"
+ "bras 1,3f \n\t"
+ ".long 1b \n\t"
+ "3: \n\t"
+ "l 1,0(1) \n\t"
+ "br 1 \n\t"
+ ".previous \n\t"
+ ".section __ex_table,\"a\"\n\t"
+ ".align 4 \n\t"
+ ".long 0b,2b \n\t"
+ ".previous \n\t"
+ : "=d" (cc), "=d" (busy_bit)
+ : "d" (0x10000|q->irq), "d" (q->mask),
+ "i" (QDIO_SIGA_ERROR_ACCESS_EXCEPTION)
+ : "cc", "0", "1", "2", "memory"
+ );
+#else /* QDIO_32_BIT */
+ asm volatile (
+ "lghi 0,0 \n\t"
+ "llgfr 1,%2 \n\t"
+ "llgfr 2,%3 \n\t"
+ "siga 0 \n\t"
+ "0:"
+ "ipm %0 \n\t"
+ "srl %0,28 \n\t"
+ "srl 0,31 \n\t"
+ "llgfr %1,0 \n\t"
+ "1: \n\t"
+ ".section .fixup,\"ax\"\n\t"
+ "lghi %0,%4 \n\t"
+ "jg 1b \n\t"
+ ".previous\n\t"
+ ".section __ex_table,\"a\"\n\t"
+ ".align 8 \n\t"
+ ".quad 0b,1b \n\t"
+ ".previous \n\t"
+ : "=d" (cc), "=d" (busy_bit)
+ : "d" (0x10000|q->irq), "d" (q->mask),
+ "i" (QDIO_SIGA_ERROR_ACCESS_EXCEPTION)
+ : "cc", "0", "1", "2", "memory"
+ );
+#endif /* QDIO_32_BIT */
+
+//QDIO_PRINT_ERR("cc=%x, busy=%x\n",cc,busy_bit);
+ if ( (cc==2) && (busy_bit) &&
+ (q->is_iqdio_q) ) {
+ if (!start_time) start_time=NOW;
+ if ((NOW-start_time)>QDIO_BUSY_BIT_PATIENCE)
+ break;
+ } else
+ break;
+ }
+
+ if ((cc==2) && (busy_bit)) cc|=QDIO_SIGA_ERROR_B_BIT_SET;
+
+ if (cc) {
+#ifndef QDIO_DBF_LIKE_HELL
+ QDIO_DBF_TEXT3(0,trace,"sigaout");
+ QDIO_DBF_HEX3(0,trace,&q,sizeof(void*));
+#endif /* QDIO_DBF_LIKE_HELL */
+ QDIO_DBF_HEX3(0,trace,&cc,sizeof(int*));
+ }
+
+ return cc;
+}
+
+static inline int qdio_siga_input(qdio_q_t *q)
+{
+ int cc;
+
+#ifdef QDIO_DBF_LIKE_HELL
+ QDIO_DBF_TEXT4(0,trace,"sigain");
+ QDIO_DBF_HEX4(0,trace,&q,sizeof(void*));
+#endif /* QDIO_DBF_LIKE_HELL */
+
+#ifdef QDIO_PERFORMANCE_STATS
+ perf_stats.siga_ins++;
+#endif /* QDIO_PERFORMANCE_STATS */
+
+#ifdef QDIO_32_BIT
+ asm volatile (
+ "lhi 0,1 \n\t"
+ "lr 1,%1 \n\t"
+ "lr 2,%2 \n\t"
+ "siga 0 \n\t"
+ "ipm %0 \n\t"
+ "srl %0,28 \n\t"
+ : "=d" (cc)
+ : "d" (0x10000|q->irq), "d" (q->mask)
+ : "cc", "0", "1", "2", "memory"
+ );
+#else /* QDIO_32_BIT */
+ asm volatile (
+ "lghi 0,1 \n\t"
+ "llgfr 1,%1 \n\t"
+ "llgfr 2,%2 \n\t"
+ "siga 0 \n\t"
+ "ipm %0 \n\t"
+ "srl %0,28 \n\t"
+ : "=d" (cc)
+ : "d" (0x10000|q->irq), "d" (q->mask)
+ : "cc", "0", "1", "2", "memory"
+ );
+#endif /* QDIO_32_BIT */
+
+ if (cc) {
+#ifndef QDIO_DBF_LIKE_HELL
+ QDIO_DBF_TEXT3(0,trace,"sigain");
+ QDIO_DBF_HEX3(0,trace,&q,sizeof(void*));
+#endif /* QDIO_DBF_LIKE_HELL */
+ QDIO_DBF_HEX3(0,trace,&cc,sizeof(int*));
+ }
+
+ return cc;
+}
+
+/* locked by the locks in qdio_activate and qdio_cleanup */
+static __u32 * volatile qdio_get_indicator(void)
+{
+ int i=1;
+ int found=0;
+
+ while (i<INDICATORS_PER_CACHELINE) {
+ if (!indicator_used[i]) {
+ indicator_used[i]=1;
+ found=1;
+ break;
+ }
+ i++;
+ }
+
+ if (found)
+ return indicators+i;
+ else
+ return (__u32 * volatile) &spare_indicator;
+}
+
+/* locked by the locks in qdio_activate and qdio_cleanup */
+static void qdio_put_indicator(__u32 *addr)
+{
+ int i;
+
+ if ( (addr) && (addr!=&spare_indicator) ) {
+ i=addr-indicators;
+ indicator_used[i]=0;
+ }
+}
+
+static inline volatile void tiqdio_clear_summary_bit(__u32 *location)
+{
+#ifdef QDIO_DBF_LIKE_HELL
+ QDIO_DBF_TEXT5(0,trace,"clrsummb");
+ QDIO_DBF_HEX5(0,trace,&location,sizeof(void*));
+#endif /* QDIO_DBF_LIKE_HELL */
+ xchg(location,0);
+}
+
+static inline volatile void tiqdio_set_summary_bit(__u32 *location)
+{
+#ifdef QDIO_DBF_LIKE_HELL
+ QDIO_DBF_TEXT5(0,trace,"setsummb");
+ QDIO_DBF_HEX5(0,trace,&location,sizeof(void*));
+#endif /* QDIO_DBF_LIKE_HELL */
+ xchg(location,-1);
+}
+
+static inline void tiqdio_sched_tl(void)
+{
+ tasklet_hi_schedule(&tiqdio_tasklet);
+}
+
+static inline void qdio_mark_tiq(qdio_q_t *q)
+{
+ unsigned long flags;
+#ifdef QDIO_DBF_LIKE_HELL
+ QDIO_DBF_TEXT4(0,trace,"mark iq");
+ QDIO_DBF_HEX4(0,trace,&q,sizeof(void*));
+#endif /* QDIO_DBF_LIKE_HELL */
+
+ spin_lock_irqsave(&ttiq_list_lock,flags);
+ if (unlikely(atomic_read(&q->is_in_shutdown))) goto out_unlock;
+
+ if (q->is_input_q) {
+ if ((q->list_prev) || (q->list_next)) goto out_unlock;
+
+ if (!tiq_list) {
+ tiq_list=q;
+ q->list_prev=q;
+ q->list_next=q;
+ } else {
+ q->list_next=tiq_list;
+ q->list_prev=tiq_list->list_prev;
+ tiq_list->list_prev->list_next=q;
+ tiq_list->list_prev=q;
+ }
+ spin_unlock_irqrestore(&ttiq_list_lock,flags);
+
+ tiqdio_set_summary_bit((__u32*)q->dev_st_chg_ind);
+ tiqdio_sched_tl();
+ }
+ return;
+out_unlock:
+ spin_unlock_irqrestore(&ttiq_list_lock,flags);
+ return;
+}
+
+static inline void qdio_mark_q(qdio_q_t *q)
+{
+#ifdef QDIO_DBF_LIKE_HELL
+ QDIO_DBF_TEXT4(0,trace,"mark q");
+ QDIO_DBF_HEX4(0,trace,&q,sizeof(void*));
+#endif /* QDIO_DBF_LIKE_HELL */
+
+ if (unlikely(atomic_read(&q->is_in_shutdown))) return;
+
+ tasklet_schedule(&q->tasklet);
+}
+
+static inline int qdio_stop_polling(qdio_q_t *q)
+{
+#ifdef QDIO_USE_PROCESSING_STATE
+ int gsf;
+
+ if (!atomic_swap(&q->polling,0)) return 1;
+
+#ifdef QDIO_DBF_LIKE_HELL
+ QDIO_DBF_TEXT4(0,trace,"stoppoll");
+ QDIO_DBF_HEX4(0,trace,&q,sizeof(void*));
+#endif /* QDIO_DBF_LIKE_HELL */
+
+ /* show the card that we are not polling anymore */
+ if (q->is_input_q) {
+ gsf=GET_SAVED_FRONTIER(q);
+ set_slsb(&q->slsb.acc.val[(gsf+QDIO_MAX_BUFFERS_PER_Q-1)&
+ (QDIO_MAX_BUFFERS_PER_Q-1)],SLSB_P_INPUT_NOT_INIT);
+ /* we don't issue this SYNC_MEMORY, as we trust Rick T and
+ * moreover will not use the PROCESSING state, so q->polling
+ * was 0
+ SYNC_MEMORY;*/
+ if (q->slsb.acc.val[gsf]==SLSB_P_INPUT_PRIMED) {
+ /* set our summary bit again, as otherwise there is a
+ * small window we can miss between resetting it and
+ * checking for PRIMED state */
+ if (q->is_thinint_q)
+ tiqdio_set_summary_bit
+ ((__u32*)q->dev_st_chg_ind);
+ return 0;
+ }
+ }
+#endif /* QDIO_USE_PROCESSING_STATE */
+ return 1;
+}
+
+/* see the comment in do_QDIO and before qdio_reserve_q about the
+ * sophisticated locking outside of unmark_q, so that we don't need to
+ * disable the interrupts :-) */
+static inline void qdio_unmark_q(qdio_q_t *q)
+{
+ unsigned long flags;
+
+#ifdef QDIO_DBF_LIKE_HELL
+ QDIO_DBF_TEXT4(0,trace,"unmark q");
+ QDIO_DBF_HEX4(0,trace,&q,sizeof(void*));
+#endif /* QDIO_DBF_LIKE_HELL */
+
+ if ((!q->list_prev)||(!q->list_next)) return;
+
+ if ((q->is_thinint_q)&&(q->is_input_q)) {
+ /* iQDIO */
+ spin_lock_irqsave(&ttiq_list_lock,flags);
+ if (q->list_next==q) {
+ /* q was the only interesting q */
+ tiq_list=NULL;
+ q->list_next=NULL;
+ q->list_prev=NULL;
+ } else {
+ q->list_next->list_prev=q->list_prev;
+ q->list_prev->list_next=q->list_next;
+ tiq_list=q->list_next;
+ q->list_next=NULL;
+ q->list_prev=NULL;
+ }
+ spin_unlock_irqrestore(&ttiq_list_lock,flags);
+ }
+}
+
+static inline volatile unsigned long tiqdio_clear_global_summary(void)
+{
+ unsigned long time;
+
+#ifdef QDIO_DBF_LIKE_HELL
+ QDIO_DBF_TEXT5(0,trace,"clrglobl");
+#endif /* QDIO_DBF_LIKE_HELL */
+
+#ifdef QDIO_32_BIT
+ asm volatile (
+ "lhi 1,3 \n\t"
+ ".insn rre,0xb2650000,2,0 \n\t"
+ "lr %0,3 \n\t"
+ : "=d" (time) : : "cc", "1", "2", "3"
+ );
+#else /* QDIO_32_BIT */
+ asm volatile (
+ "lghi 1,3 \n\t"
+ ".insn rre,0xb2650000,2,0 \n\t"
+ "lgr %0,3 \n\t"
+ : "=d" (time) : : "cc", "1", "2", "3"
+ );
+#endif /* QDIO_32_BIT */
+
+#ifdef QDIO_DBF_LIKE_HELL
+ QDIO_DBF_HEX5(0,trace,&time,sizeof(unsigned long));
+#endif /* QDIO_DBF_LIKE_HELL */
+ return time;
+}
+
+/************************* OUTBOUND ROUTINES *******************************/
+
+static inline void qdio_translate_buffer_back(qdio_q_t *q,int bufno)
+{
+ if (unlikely(!q->is_0copy_sbals_q))
+ memcpy(q->qdio_buffers[bufno],
+ (void*)q->sbal[bufno],SBAL_SIZE);
+}
+
+inline static int qdio_get_outbound_buffer_frontier(qdio_q_t *q)
+{
+ int f,f_mod_no;
+ volatile char *slsb;
+ int first_not_to_check;
+ char dbf_text[15];
+ char slsbyte;
+
+#ifdef QDIO_DBF_LIKE_HELL
+ QDIO_DBF_TEXT4(0,trace,"getobfro");
+ QDIO_DBF_HEX4(0,trace,&q,sizeof(void*));
+#endif /* QDIO_DBF_LIKE_HELL */
+
+ slsb=&q->slsb.acc.val[0];
+ f_mod_no=f=q->first_to_check;
+ /* f point to already processed elements, so f+no_used is correct...
+ * ... but: we don't check 128 buffers, as otherwise
+ * qdio_has_outbound_q_moved would return 0 */
+ first_not_to_check=f+qdio_min(atomic_read(&q->number_of_buffers_used),
+ (QDIO_MAX_BUFFERS_PER_Q-1));
+
+ if ((!q->is_iqdio_q)&&(!q->hydra_gives_outbound_pcis)) {
+ SYNC_MEMORY;
+ }
+
+check_next:
+ if (f==first_not_to_check) goto out;
+ slsbyte=slsb[f_mod_no];
+
+ /* the hydra has not fetched the output yet */
+ if (slsbyte==SLSB_CU_OUTPUT_PRIMED) {
+#ifdef QDIO_DBF_LIKE_HELL
+ QDIO_DBF_TEXT5(0,trace,"outpprim");
+#endif /* QDIO_DBF_LIKE_HELL */
+ goto out;
+ }
+
+ /* the hydra got it */
+ if (slsbyte==SLSB_P_OUTPUT_EMPTY) {
+ atomic_dec(&q->number_of_buffers_used);
+ f++;
+ f_mod_no=f&(QDIO_MAX_BUFFERS_PER_Q-1);
+#ifdef QDIO_DBF_LIKE_HELL
+ QDIO_DBF_TEXT5(0,trace,"outpempt");
+#endif /* QDIO_DBF_LIKE_HELL */
+ goto check_next;
+ }
+
+ if (slsbyte==SLSB_P_OUTPUT_ERROR) {
+ QDIO_DBF_TEXT3(0,trace,"outperr");
+ sprintf(dbf_text,"%x-%x-%x",f_mod_no,
+ q->sbal[f_mod_no]->element[14].sbalf.value,
+ q->sbal[f_mod_no]->element[15].sbalf.value);
+ QDIO_DBF_TEXT3(1,trace,dbf_text);
+ QDIO_DBF_HEX2(1,sbal,q->sbal[f_mod_no],256);
+
+ /* kind of process the buffer */
+ set_slsb(&q->slsb.acc.val[f_mod_no],
+ SLSB_P_OUTPUT_NOT_INIT);
+
+ qdio_translate_buffer_back(q,f_mod_no);
+
+ /* we increment the frontier, as this buffer
+ * was processed obviously */
+ atomic_dec(&q->number_of_buffers_used);
+ f_mod_no=(f_mod_no+1)&(QDIO_MAX_BUFFERS_PER_Q-1);
+
+ if (q->qdio_error)
+ q->error_status_flags|=
+ QDIO_STATUS_MORE_THAN_ONE_QDIO_ERROR;
+ q->qdio_error=SLSB_P_OUTPUT_ERROR;
+ q->error_status_flags|=QDIO_STATUS_LOOK_FOR_ERROR;
+
+ goto out;
+ }
+
+ /* no new buffers */
+#ifdef QDIO_DBF_LIKE_HELL
+ QDIO_DBF_TEXT5(0,trace,"outpni");
+#endif /* QDIO_DBF_LIKE_HELL */
+ goto out;
+
+out:
+ return (q->first_to_check=f_mod_no);
+}
+
+/* all buffers are processed */
+inline static int qdio_is_outbound_q_done(qdio_q_t *q)
+{
+ int no_used;
+#ifdef QDIO_DBF_LIKE_HELL
+ char dbf_text[15];
+#endif /* QDIO_DBF_LIKE_HELL */
+
+ no_used=atomic_read(&q->number_of_buffers_used);
+
+#ifdef QDIO_DBF_LIKE_HELL
+ if (no_used) {
+ sprintf(dbf_text,"oqisnt%02x",no_used);
+ QDIO_DBF_TEXT4(0,trace,dbf_text);
+ } else {
+ QDIO_DBF_TEXT4(0,trace,"oqisdone");
+ }
+ QDIO_DBF_HEX4(0,trace,&q,sizeof(void*));
+#endif /* QDIO_DBF_LIKE_HELL */
+ return (no_used==0);
+}
+
+inline static int qdio_has_outbound_q_moved(qdio_q_t *q)
+{
+ int i;
+
+ i=qdio_get_outbound_buffer_frontier(q);
+
+ if ( (i!=GET_SAVED_FRONTIER(q)) ||
+ (q->error_status_flags&QDIO_STATUS_LOOK_FOR_ERROR) ) {
+ SAVE_FRONTIER(q,i);
+ SAVE_TIMESTAMP(q);
+#ifdef QDIO_DBF_LIKE_HELL
+ QDIO_DBF_TEXT4(0,trace,"oqhasmvd");
+ QDIO_DBF_HEX4(0,trace,&q,sizeof(void*));
+#endif /* QDIO_DBF_LIKE_HELL */
+ return 1;
+ } else {
+#ifdef QDIO_DBF_LIKE_HELL
+ QDIO_DBF_TEXT4(0,trace,"oqhsntmv");
+ QDIO_DBF_HEX4(0,trace,&q,sizeof(void*));
+#endif /* QDIO_DBF_LIKE_HELL */
+ return 0;
+ }
+}
+
+inline static void qdio_kick_outbound_q(qdio_q_t *q)
+{
+ int result;
+#ifdef QDIO_DBF_LIKE_HELL
+ QDIO_DBF_TEXT4(0,trace,"kickoutq");
+ QDIO_DBF_HEX4(0,trace,&q,sizeof(void*));
+#endif /* QDIO_DBF_LIKE_HELL */
+
+ if (!q->siga_out) return;
+
+ result=qdio_siga_output(q);
+
+ if (result) {
+ if (q->siga_error)
+ q->error_status_flags|=
+ QDIO_STATUS_MORE_THAN_ONE_SIGA_ERROR;
+ q->error_status_flags|=
+ QDIO_STATUS_LOOK_FOR_ERROR;
+ q->siga_error=result;
+ }
+}
+
+inline static void qdio_kick_outbound_handler(qdio_q_t *q)
+{
+#ifdef QDIO_DBF_LIKE_HELL
+ char dbf_text[15];
+#endif /* QDIO_DBF_LIKE_HELL */
+
+ int start=q->first_element_to_kick;
+ /* last_move_ftc was just updated */
+ int real_end=GET_SAVED_FRONTIER(q);
+ int end=(real_end+QDIO_MAX_BUFFERS_PER_Q-1)&
+ (QDIO_MAX_BUFFERS_PER_Q-1);
+ int count=(end+QDIO_MAX_BUFFERS_PER_Q+1-start)&
+ (QDIO_MAX_BUFFERS_PER_Q-1);
+
+#ifdef QDIO_DBF_LIKE_HELL
+ QDIO_DBF_TEXT4(0,trace,"kickouth");
+ QDIO_DBF_HEX4(0,trace,&q,sizeof(void*));
+#endif /* QDIO_DBF_LIKE_HELL */
+
+#ifdef QDIO_DBF_LIKE_HELL
+ sprintf(dbf_text,"s=%2xc=%2x",start,count);
+ QDIO_DBF_TEXT4(0,trace,dbf_text);
+#endif /* QDIO_DBF_LIKE_HELL */
+
+ if (q->state==QDIO_IRQ_STATE_ACTIVE)
+ q->handler(q->irq,QDIO_STATUS_OUTBOUND_INT|
+ q->error_status_flags,
+ q->qdio_error,q->siga_error,q->q_no,start,count,
+ q->int_parm);
+
+ /* for the next time: */
+ q->first_element_to_kick=real_end;
+ q->qdio_error=0;
+ q->siga_error=0;
+ q->error_status_flags=0;
+}
+
+static void qdio_outbound_processing(qdio_q_t *q)
+{
+#ifdef QDIO_DBF_LIKE_HELL
+ QDIO_DBF_TEXT4(0,trace,"qoutproc");
+ QDIO_DBF_HEX4(0,trace,&q,sizeof(void*));
+#endif /* QDIO_DBF_LIKE_HELL */
+
+ if (unlikely(qdio_reserve_q(q))) {
+ qdio_release_q(q);
+#ifdef QDIO_PERFORMANCE_STATS
+ o_p_c++;
+#endif /* QDIO_PERFORMANCE_STATS */
+ /* as we're sissies, we'll check next time */
+ if (likely(!atomic_read(&q->is_in_shutdown))) {
+ qdio_mark_q(q);
+#ifdef QDIO_DBF_LIKE_HELL
+ QDIO_DBF_TEXT4(0,trace,"busy,agn");
+#endif /* QDIO_DBF_LIKE_HELL */
+ }
+ return;
+ }
+#ifdef QDIO_PERFORMANCE_STATS
+ o_p_nc++;
+#endif /* QDIO_PERFORMANCE_STATS */
+
+#ifdef QDIO_PERFORMANCE_STATS
+ perf_stats.tl_runs++;
+#endif /* QDIO_PERFORMANCE_STATS */
+
+ if (qdio_has_outbound_q_moved(q)) {
+ qdio_kick_outbound_handler(q);
+ }
+
+ if (q->is_iqdio_q) {
+ /* for asynchronous queues, we better check, if the fill
+ * level is too high */
+ if (atomic_read(&q->number_of_buffers_used)>
+ IQDIO_FILL_LEVEL_TO_POLL) {
+ qdio_mark_q(q);
+ }
+ } else if (!q->hydra_gives_outbound_pcis) {
+ if (!qdio_is_outbound_q_done(q)) {
+ qdio_mark_q(q);
+ }
+ }
+
+ qdio_release_q(q);
+}
+
+/************************* INBOUND ROUTINES *******************************/
+
+
+inline static int qdio_get_inbound_buffer_frontier(qdio_q_t *q)
+{
+ int f,f_mod_no;
+ volatile char *slsb;
+ char slsbyte;
+ int first_not_to_check;
+ char dbf_text[15];
+
+#ifdef QDIO_DBF_LIKE_HELL
+ QDIO_DBF_TEXT4(0,trace,"getibfro");
+ QDIO_DBF_HEX4(0,trace,&q,sizeof(void*));
+#endif /* QDIO_DBF_LIKE_HELL */
+
+ slsb=&q->slsb.acc.val[0];
+ f_mod_no=f=q->first_to_check;
+ /* we don't check 128 buffers, as otherwise qdio_has_inbound_q_moved
+ * would return 0 */
+ first_not_to_check=f+qdio_min(atomic_read(&q->number_of_buffers_used),
+ (QDIO_MAX_BUFFERS_PER_Q-1));
+
+ /* we don't use this one, as a PCI or we after a thin interrupt
+ * will sync the queues
+ SYNC_MEMORY;*/
+
+check_next:
+ f_mod_no=f&(QDIO_MAX_BUFFERS_PER_Q-1);
+ if (f==first_not_to_check) goto out;
+ slsbyte=slsb[f_mod_no];
+
+ /* CU_EMPTY means frontier is reached */
+ if (slsbyte==SLSB_CU_INPUT_EMPTY) {
+#ifdef QDIO_DBF_LIKE_HELL
+ QDIO_DBF_TEXT5(0,trace,"inptempt");
+#endif /* QDIO_DBF_LIKE_HELL */
+ goto out;
+ }
+
+ /* P_PRIMED means set slsb to P_PROCESSING and move on */
+ if (slsbyte==SLSB_P_INPUT_PRIMED) {
+#ifdef QDIO_DBF_LIKE_HELL
+ QDIO_DBF_TEXT5(0,trace,"inptprim");
+#endif /* QDIO_DBF_LIKE_HELL */
+
+#ifdef QDIO_USE_PROCESSING_STATE
+ /* as soon as running under VM, polling the input queues will
+ * kill VM in terms of CP overhead */
+ if (q->siga_sync) {
+ set_slsb(&slsb[f_mod_no],SLSB_P_INPUT_NOT_INIT);
+ } else {
+ set_slsb(&slsb[f_mod_no],SLSB_P_INPUT_PROCESSING);
+ atomic_set(&q->polling,1);
+ }
+#else /* QDIO_USE_PROCESSING_STATE */
+ set_slsb(&slsb[f_mod_no],SLSB_P_INPUT_NOT_INIT);
+#endif /* QDIO_USE_PROCESSING_STATE */
+ /* not needed, as the inbound queue will be synced on the next
+ * siga-r
+ SYNC_MEMORY;*/
+ f++;
+ atomic_dec(&q->number_of_buffers_used);
+ goto check_next;
+ }
+
+ if ( (slsbyte==SLSB_P_INPUT_NOT_INIT) ||
+ (slsbyte==SLSB_P_INPUT_PROCESSING) ) {
+#ifdef QDIO_DBF_LIKE_HELL
+ QDIO_DBF_TEXT5(0,trace,"inpnipro");
+#endif /* QDIO_DBF_LIKE_HELL */
+ goto out;
+ }
+
+ /* P_ERROR means frontier is reached, break and report error */
+ if (slsbyte==SLSB_P_INPUT_ERROR) {
+ sprintf(dbf_text,"inperr%2x",f_mod_no);
+ QDIO_DBF_TEXT3(1,trace,dbf_text);
+ QDIO_DBF_HEX2(1,sbal,q->sbal[f_mod_no],256);
+
+ /* kind of process the buffer */
+ set_slsb(&slsb[f_mod_no],SLSB_P_INPUT_NOT_INIT);
+
+ if (q->qdio_error)
+ q->error_status_flags|=
+ QDIO_STATUS_MORE_THAN_ONE_QDIO_ERROR;
+ q->qdio_error=SLSB_P_INPUT_ERROR;
+ q->error_status_flags|=QDIO_STATUS_LOOK_FOR_ERROR;
+
+ /* we increment the frontier, as this buffer
+ * was processed obviously */
+ f_mod_no=(f_mod_no+1)&(QDIO_MAX_BUFFERS_PER_Q-1);
+ atomic_dec(&q->number_of_buffers_used);
+
+ goto out;
+ }
+
+ /* everything else means frontier not changed (HALTED or so) */
+out:
+ q->first_to_check=f_mod_no;
+
+#ifdef QDIO_DBF_LIKE_HELL
+ QDIO_DBF_HEX4(0,trace,&q->first_to_check,sizeof(int));
+#endif /* QDIO_DBF_LIKE_HELL */
+
+ return q->first_to_check;
+}
+
+inline static int qdio_has_inbound_q_moved(qdio_q_t *q)
+{
+ int i;
+
+#ifdef QDIO_PERFORMANCE_STATS
+ static int old_pcis=0;
+ static int old_thinints=0;
+
+ if ((old_pcis==perf_stats.pcis)&&(old_thinints==perf_stats.thinints))
+ perf_stats.start_time_inbound=NOW;
+ else
+ old_pcis=perf_stats.pcis;
+#endif /* QDIO_PERFORMANCE_STATS */
+
+ i=qdio_get_inbound_buffer_frontier(q);
+ if ( (i!=GET_SAVED_FRONTIER(q)) ||
+ (q->error_status_flags&QDIO_STATUS_LOOK_FOR_ERROR) ) {
+ SAVE_FRONTIER(q,i);
+ if ((!q->siga_sync)&&(!q->hydra_gives_outbound_pcis)) {
+ SAVE_TIMESTAMP(q);
+ }
+
+#ifdef QDIO_DBF_LIKE_HELL
+ QDIO_DBF_TEXT4(0,trace,"inhasmvd");
+ QDIO_DBF_HEX4(0,trace,&q,sizeof(void*));
+#endif /* QDIO_DBF_LIKE_HELL */
+ return 1;
+ } else {
+#ifdef QDIO_DBF_LIKE_HELL
+ QDIO_DBF_TEXT4(0,trace,"inhsntmv");
+ QDIO_DBF_HEX4(0,trace,&q,sizeof(void*));
+#endif /* QDIO_DBF_LIKE_HELL */
+ return 0;
+ }
+}
+
+/* means, no more buffers to be filled */
+inline static int iqdio_is_inbound_q_done(qdio_q_t *q)
+{
+ int no_used;
+#ifdef QDIO_DBF_LIKE_HELL
+ char dbf_text[15];
+#endif /* QDIO_DBF_LIKE_HELL */
+
+ no_used=atomic_read(&q->number_of_buffers_used);
+
+ /* propagate the change from 82 to 80 through VM */
+ SYNC_MEMORY;
+
+#ifdef QDIO_DBF_LIKE_HELL
+ if (no_used) {
+ sprintf(dbf_text,"iqisnt%02x",no_used);
+ QDIO_DBF_TEXT4(0,trace,dbf_text);
+ } else {
+ QDIO_DBF_TEXT4(0,trace,"iniqisdo");
+ }
+ QDIO_DBF_HEX4(0,trace,&q,sizeof(void*));
+#endif /* QDIO_DBF_LIKE_HELL */
+
+ if (!no_used) {
+ return 1;
+ }
+
+ if (q->siga_sync) {
+ if (q->slsb.acc.val[q->first_to_check]==SLSB_P_INPUT_PRIMED) {
+ /* ok, the next input buffer is primed. that means,
+ * that device state change indicator and adapter
+ * local summary are set, so we will find it next
+ * time.
+ * we will return 0 below, as there is nothing to
+ * do, except of scheduling ourselves for the next
+ * time. */
+ tiqdio_set_summary_bit((__u32*)q->dev_st_chg_ind);
+ tiqdio_sched_tl();
+ } else {
+ /* nothing more to do, if next buffer is not PRIMED.
+ * note that we did a SYNC_MEMORY before, that there
+ * has been a sychnronization.
+ * we will return 0 below, as there is nothing to do
+ * (stop_polling not necessary, as we have not been
+ * using the PROCESSING state */
+ }
+ } else {
+ /* we'll check for more primed buffers
+ * in qeth_stop_polling */
+ }
+
+ return 0;
+}
+
+inline static int qdio_is_inbound_q_done(qdio_q_t *q)
+{
+ int no_used;
+#ifdef QDIO_DBF_LIKE_HELL
+ char dbf_text[15];
+#endif /* QDIO_DBF_LIKE_HELL */
+
+ no_used=atomic_read(&q->number_of_buffers_used);
+
+ /* we need that one for synchronization with Hydra, as Hydra
+ * does a kind of PCI avoidance */
+ SYNC_MEMORY;
+
+ if (!no_used) {
+#ifdef QDIO_DBF_LIKE_HELL
+ QDIO_DBF_TEXT4(0,trace,"inqisdnA");
+ QDIO_DBF_HEX4(0,trace,&q,sizeof(void*));
+ QDIO_DBF_TEXT4(0,trace,dbf_text);
+#endif /* QDIO_DBF_LIKE_HELL */
+ return 1;
+ }
+
+ if (q->slsb.acc.val[q->first_to_check]==SLSB_P_INPUT_PRIMED) {
+ /* we got something to do */
+#ifdef QDIO_DBF_LIKE_HELL
+ QDIO_DBF_TEXT4(0,trace,"inqisntA");
+ QDIO_DBF_HEX4(0,trace,&q,sizeof(void*));
+#endif /* QDIO_DBF_LIKE_HELL */
+ return 0;
+ }
+
+ /* on VM, we don't poll, so the q is always done here */
+ if (q->siga_sync) return 1;
+ if (q->hydra_gives_outbound_pcis) return 1;
+
+ /* at this point we know, that inbound first_to_check
+ has (probably) not moved (see qdio_inbound_processing) */
+ if (NOW>GET_SAVED_TIMESTAMP(q)+q->timing.threshold) {
+#ifdef QDIO_DBF_LIKE_HELL
+ QDIO_DBF_TEXT4(0,trace,"inqisdon");
+ QDIO_DBF_HEX4(0,trace,&q,sizeof(void*));
+ sprintf(dbf_text,"pf%02xcn%02x",q->first_to_check,no_used);
+ QDIO_DBF_TEXT4(0,trace,dbf_text);
+#endif /* QDIO_DBF_LIKE_HELL */
+ return 1;
+ } else {
+#ifdef QDIO_DBF_LIKE_HELL
+ QDIO_DBF_TEXT4(0,trace,"inqisntd");
+ QDIO_DBF_HEX4(0,trace,&q,sizeof(void*));
+ sprintf(dbf_text,"pf%02xcn%02x",q->first_to_check,no_used);
+ QDIO_DBF_TEXT4(0,trace,dbf_text);
+#endif /* QDIO_DBF_LIKE_HELL */
+ return 0;
+ }
+}
+
+inline static void qdio_kick_inbound_handler(qdio_q_t *q)
+{
+ int count=0;
+ int start,end,real_end,i;
+#ifdef QDIO_DBF_LIKE_HELL
+ char dbf_text[15];
+
+ QDIO_DBF_TEXT4(0,trace,"kickinh");
+ QDIO_DBF_HEX4(0,trace,&q,sizeof(void*));
+#endif /* QDIO_DBF_LIKE_HELL */
+
+ start=q->first_element_to_kick;
+ real_end=q->first_to_check;
+ end=(real_end+QDIO_MAX_BUFFERS_PER_Q-1)&(QDIO_MAX_BUFFERS_PER_Q-1);
+
+ i=start;
+ while (1) {
+ count++;
+ qdio_translate_buffer_back(q,i);
+ if (i==end) break;
+ i=(i+1)&(QDIO_MAX_BUFFERS_PER_Q-1);
+ }
+
+#ifdef QDIO_DBF_LIKE_HELL
+ sprintf(dbf_text,"s=%2xc=%2x",start,count);
+ QDIO_DBF_TEXT4(0,trace,dbf_text);
+#endif /* QDIO_DBF_LIKE_HELL */
+
+ if (likely(q->state==QDIO_IRQ_STATE_ACTIVE))
+ q->handler(q->irq,
+ QDIO_STATUS_INBOUND_INT|q->error_status_flags,
+ q->qdio_error,q->siga_error,q->q_no,start,count,
+ q->int_parm);
+
+ /* for the next time: */
+ q->first_element_to_kick=real_end;
+ q->qdio_error=0;
+ q->siga_error=0;
+ q->error_status_flags=0;
+
+#ifdef QDIO_PERFORMANCE_STATS
+ perf_stats.inbound_time+=NOW-perf_stats.start_time_inbound;
+ perf_stats.inbound_cnt++;
+#endif /* QDIO_PERFORMANCE_STATS */
+}
+
+static inline void tiqdio_inbound_processing(qdio_q_t *q)
+{
+ qdio_irq_t *irq_ptr;
+ qdio_q_t *oq;
+ int i;
+
+#ifdef QDIO_DBF_LIKE_HELL
+ QDIO_DBF_TEXT4(0,trace,"iqinproc");
+ QDIO_DBF_HEX4(0,trace,&q,sizeof(void*));
+#endif /* QDIO_DBF_LIKE_HELL */
+
+ /* we first want to reserve the q, so that we know, that we don't
+ * interrupt ourselves and call qdio_unmark_q, as is_in_shutdown might
+ * be set */
+ if (unlikely(qdio_reserve_q(q))) {
+ qdio_release_q(q);
+#ifdef QDIO_PERFORMANCE_STATS
+ ii_p_c++;
+#endif /* QDIO_PERFORMANCE_STATS */
+ /* as we might just be about to stop polling, we make
+ * sure that we check again at least once more */
+ tiqdio_sched_tl();
+ return;
+ }
+#ifdef QDIO_PERFORMANCE_STATS
+ ii_p_nc++;
+#endif /* QDIO_PERFORMANCE_STATS */
+ if (unlikely(atomic_read(&q->is_in_shutdown))) {
+ qdio_unmark_q(q);
+ goto out;
+ }
+
+ if (*(q->dev_st_chg_ind)) {
+ tiqdio_clear_summary_bit((__u32*)q->dev_st_chg_ind);
+
+ if (q->hydra_gives_outbound_pcis) {
+ if (!q->siga_sync_done_on_thinints) {
+ SYNC_MEMORY_ALL;
+ } else if ((!q->siga_sync_done_on_outb_tis)&&
+ (q->hydra_gives_outbound_pcis)) {
+ SYNC_MEMORY_ALL_OUTB;
+ }
+ } else {
+ SYNC_MEMORY;
+ }
+
+ /* maybe we have to do work on our outbound queues... at least
+ * we have to check Hydra outbound-int-capable thinint-capable
+ * queues */
+ if (q->hydra_gives_outbound_pcis) {
+ irq_ptr=(qdio_irq_t*)q->irq_ptr;
+ for (i=0;i<irq_ptr->no_output_qs;i++) {
+ oq=irq_ptr->output_qs[i];
+#ifdef QDIO_PERFORMANCE_STATS
+ perf_stats.tl_runs--;
+#endif /* QDIO_PERFORMANCE_STATS */
+ if (!qdio_is_outbound_q_done(oq)) {
+ qdio_outbound_processing(oq);
+ }
+ }
+ }
+
+ if (qdio_has_inbound_q_moved(q)) {
+ qdio_kick_inbound_handler(q);
+ if (iqdio_is_inbound_q_done(q)) {
+ if (!qdio_stop_polling(q)) {
+ /* we set the flags to get into
+ * the stuff next time, see also
+ * comment in qdio_stop_polling */
+ tiqdio_set_summary_bit
+ ((__u32*)q->dev_st_chg_ind);
+ tiqdio_sched_tl();
+ }
+ }
+ }
+ }
+out:
+ qdio_release_q(q);
+}
+
+static void qdio_inbound_processing(qdio_q_t *q)
+{
+ int q_laps=0;
+
+#ifdef QDIO_DBF_LIKE_HELL
+ QDIO_DBF_TEXT4(0,trace,"qinproc");
+ QDIO_DBF_HEX4(0,trace,&q,sizeof(void*));
+#endif /* QDIO_DBF_LIKE_HELL */
+
+ if (unlikely(qdio_reserve_q(q))) {
+ qdio_release_q(q);
+#ifdef QDIO_PERFORMANCE_STATS
+ i_p_c++;
+#endif /* QDIO_PERFORMANCE_STATS */
+ /* as we're sissies, we'll check next time */
+ if (likely(!atomic_read(&q->is_in_shutdown))) {
+ qdio_mark_q(q);
+#ifdef QDIO_DBF_LIKE_HELL
+ QDIO_DBF_TEXT4(0,trace,"busy,agn");
+#endif /* QDIO_DBF_LIKE_HELL */
+ }
+ return;
+ }
+#ifdef QDIO_PERFORMANCE_STATS
+ i_p_nc++;
+ perf_stats.tl_runs++;
+#endif /* QDIO_PERFORMANCE_STATS */
+
+again:
+ if (qdio_has_inbound_q_moved(q)) {
+ qdio_kick_inbound_handler(q);
+ if (!qdio_stop_polling(q)) {
+ q_laps++;
+ if (q_laps<QDIO_Q_LAPS) goto again;
+ }
+ qdio_mark_q(q);
+ } else {
+ if (!qdio_is_inbound_q_done(q)) /* means poll time is
+ not yet over */
+ qdio_mark_q(q);
+ }
+
+ qdio_release_q(q);
+}
+
+/************************* MAIN ROUTINES *******************************/
+
+static inline void tiqdio_inbound_checks(void)
+{
+ qdio_q_t *q;
+#ifdef QDIO_USE_PROCESSING_STATE
+ int q_laps=0;
+#endif /* QDIO_USE_PROCESSING_STATE */
+
+#ifdef QDIO_DBF_LIKE_HELL
+ char dbf_text[15];
+
+ QDIO_DBF_TEXT4(0,trace,"iqdinbck");
+#endif /* QDIO_DBF_LIKE_HELL */
+
+#ifdef QDIO_DBF_LIKE_HELL
+ QDIO_DBF_TEXT5(0,trace,"iqlocsum");
+#endif /* QDIO_DBF_LIKE_HELL */
+
+#ifdef QDIO_USE_PROCESSING_STATE
+again:
+#endif /* QDIO_USE_PROCESSING_STATE */
+
+ q=(qdio_q_t*)tiq_list;
+ /* switch all active queues to processing state */
+ do {
+ if (!q) break;
+ tiqdio_inbound_processing(q);
+ q=(qdio_q_t*)q->list_next;
+ } while (q!=(qdio_q_t*)tiq_list);
+
+ /* switch off all queues' processing state */
+#ifdef QDIO_USE_PROCESSING_STATE
+ q=(qdio_q_t*)tiq_list;
+ do {
+ if (!q) {
+ tiqdio_sched_tl();
+ break;
+ }
+ /* under VM, we have not used the PROCESSING state, so no
+ * need to stop polling */
+ if (q->siga_sync) {
+ q=(qdio_q_t*)q->list_next;
+ continue;
+ }
+
+ if (unlikely(qdio_reserve_q(q))) {
+ qdio_release_q(q);
+#ifdef QDIO_PERFORMANCE_STATS
+ ii_p_c++;
+#endif /* QDIO_PERFORMANCE_STATS */
+ /* as we might just be about to stop polling, we make
+ * sure that we check again at least once more */
+
+ /* sanity -- we'd get here without setting the
+ * dev st chg ind */
+ tiqdio_set_summary_bit((__u32*)q->dev_st_chg_ind);
+ tiqdio_sched_tl();
+ break;
+ }
+ if (!qdio_stop_polling(q)) {
+ q_laps++;
+ if (q_laps<QDIO_Q_LAPS) {
+ qdio_release_q(q);
+ goto again;
+ } else {
+ /* we set the flags to get into the stuff
+ * next time, see also comment in
+ * qdio_stop_polling */
+ tiqdio_set_summary_bit((__u32*)
+ q->dev_st_chg_ind);
+ tiqdio_sched_tl();
+ }
+ }
+ qdio_release_q(q);
+ q=(qdio_q_t*)q->list_next;
+ } while (q!=(qdio_q_t*)tiq_list);
+#endif /* QDIO_USE_PROCESSING_STATE */
+}
+
+static void tiqdio_tl(unsigned long data)
+{
+#ifdef QDIO_DBF_LIKE_HELL
+ QDIO_DBF_TEXT4(0,trace,"tiqdio_tl");
+#endif /* QDIO_DBF_LIKE_HELL */
+#ifdef QDIO_PERFORMANCE_STATS
+ perf_stats.tl_runs++;
+#endif /* QDIO_PERFORMANCE_STATS */
+
+ tiqdio_inbound_checks();
+}
+
+/********************* GENERAL HELPER_ROUTINES ***********************/
+
+static qdio_irq_t *qdio_get_irq_ptr(int irq)
+{
+ qdio_irq_t *irq_ptr;
+ int bucket=irq&(QDIO_IRQ_BUCKETS-1);
+
+ read_lock(&irq_list_lock[bucket]);
+ irq_ptr=first_irq[bucket];
+ while (irq_ptr) {
+ if (irq_ptr->irq==irq) break;
+ irq_ptr=irq_ptr->next;
+ }
+ read_unlock(&irq_list_lock[bucket]);
+ return irq_ptr;
+}
+
+static qdio_irq_t *qdio_get_irq_ptr_wolock(int irq)
+{
+ qdio_irq_t *irq_ptr=first_irq[irq&(QDIO_IRQ_BUCKETS-1)];
+
+ while (irq_ptr) {
+ if (irq_ptr->irq==irq) break;
+ irq_ptr=irq_ptr->next;
+ }
+ return irq_ptr;
+}
+
+/* irq_ptr->irq should be set already! */
+static void qdio_insert_irq_ptr(qdio_irq_t *irq_ptr)
+{
+ qdio_irq_t *i_p;
+ int irq,bucket;
+
+ if (!irq_ptr) return;
+
+ irq=irq_ptr->irq;
+ bucket=irq&(QDIO_IRQ_BUCKETS-1);
+
+ write_lock(&irq_list_lock[bucket]);
+
+ if (irq_ptr==qdio_get_irq_ptr_wolock(irq)) goto out;
+
+ if (!first_irq[bucket]) {
+ first_irq[bucket]=irq_ptr;
+ } else {
+ i_p=first_irq[bucket];
+ while (i_p->next)
+ i_p=i_p->next;
+ i_p->next=irq_ptr;
+ }
+ irq_ptr->next=NULL;
+out:
+ write_unlock(&irq_list_lock[bucket]);
+}
+
+static void qdio_remove_irq_ptr(qdio_irq_t *irq_ptr)
+{
+ qdio_irq_t *i_p;
+ int irq,bucket;
+
+ if (!irq_ptr) return;
+
+ irq=irq_ptr->irq;
+ bucket=irq&(QDIO_IRQ_BUCKETS-1);
+
+ write_lock(&irq_list_lock[bucket]);
+
+ if (!qdio_get_irq_ptr_wolock(irq)) goto out;
+
+ if (first_irq[irq&(QDIO_IRQ_BUCKETS-1)]==irq_ptr) {
+ first_irq[irq&(QDIO_IRQ_BUCKETS-1)]=irq_ptr->next;
+ } else {
+ for (i_p=first_irq[irq&(QDIO_IRQ_BUCKETS-1)];
+ i_p->next!=irq_ptr;i_p=i_p->next);
+ i_p->next=irq_ptr->next;
+ }
+ irq_ptr->next=NULL;
+out:
+ write_unlock(&irq_list_lock[bucket]);
+}
+
+static void qdio_release_irq_memory(qdio_irq_t *irq_ptr)
+{
+ int i,j;
+ int available;
+
+ for (i=0;i<QDIO_MAX_QUEUES_PER_IRQ;i++) {
+ if (!irq_ptr->input_qs[i]) goto next;
+ available=0;
+ if (!irq_ptr->input_qs[i]->is_0copy_sbals_q)
+ for (j=0;j<QDIO_MAX_BUFFERS_PER_Q;j++) {
+ if (!available) {
+ if (irq_ptr->input_qs[i]->sbal[j])
+ kfree((void*)irq_ptr->
+ input_qs[i]->sbal[j]);
+ available=PAGE_SIZE;
+ }
+ available-=sizeof(sbal_t);
+ }
+ if (irq_ptr->input_qs[i]->slib)
+ kfree(irq_ptr->input_qs[i]->slib);
+ kfree(irq_ptr->input_qs[i]);
+
+next:
+ if (!irq_ptr->output_qs[i]) continue;
+ available=0;
+ if (!irq_ptr->output_qs[i]->is_0copy_sbals_q)
+ for (j=0;j<QDIO_MAX_BUFFERS_PER_Q;j++) {
+ if (!available) {
+ if (irq_ptr->output_qs[i]->sbal[j])
+ kfree((void*)irq_ptr->
+ output_qs[i]->sbal[j]);
+ available=PAGE_SIZE;
+ }
+ available-=sizeof(sbal_t);
+ }
+ if (irq_ptr->output_qs[i]->slib)
+ kfree(irq_ptr->output_qs[i]->slib);
+ kfree(irq_ptr->output_qs[i]);
+
+ }
+ if (irq_ptr->qdr) kfree(irq_ptr->qdr);
+ kfree(irq_ptr);
+}
+
+static inline void qdio_wakeup(atomic_t *var,qdio_irq_t *irq_ptr)
+{
+ wait_queue_head_t *wait_q;
+
+#ifdef QDIO_DBF_LIKE_HELL
+ char dbf_text[20];
+ sprintf(dbf_text,"qwkp%4x",irq_ptr->irq);
+ QDIO_DBF_TEXT3(0,trace,dbf_text);
+#endif /* QDIO_DBF_LIKE_HELL */
+
+ atomic_set(var,1);
+ if ((wait_q=&irq_ptr->wait_q))
+ wake_up(wait_q);
+}
+
+static int qdio_sleepon(atomic_t *var,int timeout,qdio_irq_t *irq_ptr)
+{
+ __u64 stop;
+ int retval;
+ DECLARE_WAITQUEUE (current_wait_q,current);
+
+#ifdef QDIO_DBF_LIKE_HELL
+ char dbf_text[20];
+ sprintf(dbf_text,"qslp%4x",irq_ptr->irq);
+ QDIO_DBF_TEXT3(0,trace,dbf_text);
+#endif /* QDIO_DBF_LIKE_HELL */
+
+ add_wait_queue(&irq_ptr->wait_q,¤t_wait_q);
+ stop=(qdio_get_micros()>>10)+timeout;
+ for (;;) {
+ set_task_state(current,TASK_INTERRUPTIBLE);
+ if (atomic_read(var)) {
+ atomic_set(var,0);
+ retval=0;
+ goto out;
+ }
+ if (qdio_get_micros()>>10>stop) {
+#ifdef QDIO_DBF_LIKE_HELL
+ sprintf(dbf_text,"%xtime",irq_ptr->irq);
+ QDIO_DBF_TEXT3(0,trace,dbf_text);
+#endif /* QDIO_DBF_LIKE_HELL */
+ retval=-ETIME;
+ goto out;
+ }
+ schedule_timeout(((stop-(qdio_get_micros()>>10))>>10)*HZ);
+ }
+ out:
+ set_task_state(current,TASK_RUNNING);
+ remove_wait_queue(&irq_ptr->wait_q,¤t_wait_q);
+ return retval;
+}
+
+static void qdio_set_impl_params(qdio_irq_t *irq_ptr,
+ unsigned int qib_param_field_format,
+ /* pointer to 128 bytes or NULL, if no param field */
+ unsigned char *qib_param_field,
+ unsigned int no_input_qs,
+ unsigned int no_output_qs,
+ /* pointer to no_queues*128 words of data or NULL */
+ unsigned long *input_slib_elements,
+ unsigned long *output_slib_elements)
+{
+ int i,j;
+
+ if (!irq_ptr) return;
+
+ irq_ptr->qib.pfmt=qib_param_field_format;
+ if (qib_param_field)
+ memcpy(irq_ptr->qib.parm,qib_param_field,
+ QDIO_MAX_BUFFERS_PER_Q);
+
+ if (input_slib_elements)
+ for (i=0;i<no_input_qs;i++) {
+ for (j=0;j<QDIO_MAX_BUFFERS_PER_Q;j++)
+ irq_ptr->input_qs[i]->slib->slibe[j].parms=
+ input_slib_elements[
+ i*QDIO_MAX_BUFFERS_PER_Q+j];
+ }
+ if (output_slib_elements)
+ for (i=0;i<no_output_qs;i++) {
+ for (j=0;j<QDIO_MAX_BUFFERS_PER_Q;j++)
+ irq_ptr->output_qs[i]->slib->slibe[j].parms=
+ output_slib_elements[
+ i*QDIO_MAX_BUFFERS_PER_Q+j];
+ }
+}
+
+
+
+static int qdio_alloc_qs(qdio_irq_t *irq_ptr,int no_input_qs,int no_output_qs,
+ qdio_handler_t *input_handler,
+ qdio_handler_t *output_handler,
+ unsigned long int_parm,int q_format,
+ unsigned long flags,
+ void **inbound_sbals_array,
+ void **outbound_sbals_array)
+{
+ qdio_q_t *q;
+ int i,j,result=0;
+ char dbf_text[20]; /* see qdio_initialize */
+ void *ptr;
+ int available;
+
+ for (i=0;i<no_input_qs;i++) {
+ q=kmalloc(sizeof(qdio_q_t),GFP_KERNEL);
+
+ if (!q) {
+ QDIO_PRINT_ERR("kmalloc of q failed!\n");
+ goto out;
+ }
+ memset(q,0,sizeof(qdio_q_t));
+
+ sprintf(dbf_text,"in-q%4x",i);
+ QDIO_DBF_TEXT0(0,setup,dbf_text);
+ QDIO_DBF_HEX0(0,setup,&q,sizeof(void*));
+
+ q->slib=kmalloc(PAGE_SIZE,GFP_KERNEL);
+ if (!q->slib) {
+ QDIO_PRINT_ERR("kmalloc of slib failed!\n");
+ goto out;
+ }
+ memset(q->slib,0,PAGE_SIZE);
+ q->sl=(sl_t*)(((char*)q->slib)+PAGE_SIZE/2);
+
+ available=0;
+ if (flags&QDIO_INBOUND_0COPY_SBALS) {
+ for (j=0;j<QDIO_MAX_BUFFERS_PER_Q;j++) {
+ q->sbal[j]=*(inbound_sbals_array++);
+ }
+ } else for (j=0;j<QDIO_MAX_BUFFERS_PER_Q;j++) {
+ if (!available) {
+ q->sbal[j]=kmalloc(PAGE_SIZE,GFP_KERNEL);
+ if (!q->sbal[j]) {
+ goto out;
+ }
+ available=PAGE_SIZE;
+ memset((void*)q->sbal[j],0,PAGE_SIZE);
+ } else {
+ q->sbal[j]=(volatile sbal_t *)
+ (((char*)q->sbal[j-1])+sizeof(sbal_t));
+ }
+ available-=sizeof(sbal_t);
+ }
+
+ q->queue_type=q_format;
+ q->int_parm=int_parm;
+ irq_ptr->input_qs[i]=q;
+ q->irq=irq_ptr->irq;
+ q->irq_ptr=irq_ptr;
+ q->mask=1<<(31-i);
+ q->q_no=i;
+ q->is_input_q=1;
+ q->is_0copy_sbals_q=flags&QDIO_INBOUND_0COPY_SBALS;
+ q->first_to_check=0;
+ q->last_move_ftc=0;
+ q->handler=input_handler;
+ q->dev_st_chg_ind=irq_ptr->dev_st_chg_ind;
+
+ q->tasklet.data=(unsigned long)q;
+ /* q->is_thinint_q isn't valid at this time, but
+ * irq_ptr->is_thinint_irq is */
+ q->tasklet.func=(void(*)(unsigned long))
+ ((irq_ptr->is_thinint_irq)?&tiqdio_inbound_processing:
+ &qdio_inbound_processing);
+
+/* for (j=0;j<QDIO_STATS_NUMBER;j++)
+ q->timing.last_transfer_times[j]=(qdio_get_micros()/
+ QDIO_STATS_NUMBER)*j;
+ q->timing.last_transfer_index=QDIO_STATS_NUMBER-1;
+*/
+
+ /* fill in slib */
+ if (i>0) irq_ptr->input_qs[i-1]->slib->nsliba=
+ QDIO_PFIX_GET_ADDR(q->slib);
+ q->slib->sla=QDIO_PFIX_GET_ADDR(q->sl);
+ q->slib->slsba=QDIO_PFIX_GET_ADDR((void *)&q->slsb.acc.val[0]);
+
+ /* fill in sl */
+ for (j=0;j<QDIO_MAX_BUFFERS_PER_Q;j++)
+ q->sl->element[j].sbal=
+ QDIO_PFIX_GET_ADDR((void *)q->sbal[j]);
+
+ QDIO_DBF_TEXT2(0,setup,"sl-sb-b0");
+ ptr=(void*)q->sl;
+ QDIO_DBF_HEX2(0,setup,&ptr,sizeof(void*));
+ ptr=(void*)&q->slsb;
+ QDIO_DBF_HEX2(0,setup,&ptr,sizeof(void*));
+ ptr=(void*)q->sbal[0];
+ QDIO_DBF_HEX2(0,setup,&ptr,sizeof(void*));
+
+ /* fill in slsb */
+ for (j=0;j<QDIO_MAX_BUFFERS_PER_Q;j++) {
+ set_slsb(&q->slsb.acc.val[j],
+ SLSB_P_INPUT_NOT_INIT);
+ q->sbal[j]->element[1].sbalf.i1.key=
+ QDIO_STORAGE_ACC_KEY;
+ }
+ }
+
+ for (i=0;i<no_output_qs;i++) {
+ q=kmalloc(sizeof(qdio_q_t),GFP_KERNEL);
+
+ if (!q) {
+ goto out;
+ }
+ memset(q,0,sizeof(qdio_q_t));
+
+ sprintf(dbf_text,"outq%4x",i);
+ QDIO_DBF_TEXT0(0,setup,dbf_text);
+ QDIO_DBF_HEX0(0,setup,&q,sizeof(void*));
+
+ q->slib=kmalloc(PAGE_SIZE,GFP_KERNEL);
+ if (!q->slib) {
+ QDIO_PRINT_ERR("kmalloc of slib failed!\n");
+ goto out;
+ }
+ memset(q->slib,0,PAGE_SIZE);
+ q->sl=(sl_t*)(((char*)q->slib)+PAGE_SIZE/2);
+
+ available=0;
+ if (flags&QDIO_OUTBOUND_0COPY_SBALS) {
+ for (j=0;j<QDIO_MAX_BUFFERS_PER_Q;j++) {
+ q->sbal[j]=*(outbound_sbals_array++);
+ }
+ } else for (j=0;j<QDIO_MAX_BUFFERS_PER_Q;j++) {
+ if (!available) {
+ q->sbal[j]=kmalloc(PAGE_SIZE,GFP_KERNEL);
+ if (!q->sbal[j]) {
+ goto out;
+ }
+ available=PAGE_SIZE;
+ memset((void*)q->sbal[j],0,PAGE_SIZE);
+ } else {
+ q->sbal[j]=(volatile sbal_t *)
+ (((char*)q->sbal[j-1])+sizeof(sbal_t));
+ }
+ available-=sizeof(sbal_t);
+ }
+
+ q->queue_type=q_format;
+ q->int_parm=int_parm;
+ irq_ptr->output_qs[i]=q;
+ q->is_input_q=0;
+ q->is_0copy_sbals_q=flags&QDIO_OUTBOUND_0COPY_SBALS;
+ q->irq=irq_ptr->irq;
+ q->irq_ptr=irq_ptr;
+ q->mask=1<<(31-i);
+ q->q_no=i;
+ q->first_to_check=0;
+ q->last_move_ftc=0;
+ q->handler=output_handler;
+
+ q->tasklet.data=(unsigned long)q;
+ q->tasklet.func=(void(*)(unsigned long))
+ &qdio_outbound_processing;
+
+ /* fill in slib */
+ if (i>0) irq_ptr->output_qs[i-1]->slib->nsliba=
+ QDIO_PFIX_GET_ADDR(q->slib);
+ q->slib->sla=QDIO_PFIX_GET_ADDR(q->sl);
+ q->slib->slsba=QDIO_PFIX_GET_ADDR((void *)&q->slsb.acc.val[0]);
+
+ /* fill in sl */
+ for (j=0;j<QDIO_MAX_BUFFERS_PER_Q;j++)
+ q->sl->element[j].sbal=
+ QDIO_PFIX_GET_ADDR((void *)q->sbal[j]);
+
+ QDIO_DBF_TEXT2(0,setup,"sl-sb-b0");
+ ptr=(void*)q->sl;
+ QDIO_DBF_HEX2(0,setup,&ptr,sizeof(void*));
+ ptr=(void*)&q->slsb;
+ QDIO_DBF_HEX2(0,setup,&ptr,sizeof(void*));
+ ptr=(void*)q->sbal[0];
+ QDIO_DBF_HEX2(0,setup,&ptr,sizeof(void*));
+
+ /* fill in slsb */
+ for (j=0;j<QDIO_MAX_BUFFERS_PER_Q;j++) {
+ set_slsb(&q->slsb.acc.val[j],
+ SLSB_P_OUTPUT_NOT_INIT);
+ q->sbal[j]->element[1].sbalf.i1.key=
+ QDIO_STORAGE_ACC_KEY;
+ }
+ }
+
+ result=1;
+out:
+ return result;
+}
+
+static void qdio_fill_thresholds(qdio_irq_t *irq_ptr,
+ unsigned int no_input_qs,
+ unsigned int no_output_qs,
+ unsigned int min_input_threshold,
+ unsigned int max_input_threshold,
+ unsigned int min_output_threshold,
+ unsigned int max_output_threshold)
+{
+ int i;
+ qdio_q_t *q;
+
+ for (i=0;i<no_input_qs;i++) {
+ q=irq_ptr->input_qs[i];
+ q->timing.threshold=max_input_threshold;
+/* for (j=0;j<QDIO_STATS_CLASSES;j++) {
+ q->threshold_classes[j].threshold=
+ min_input_threshold+
+ (max_input_threshold-min_input_threshold)/
+ QDIO_STATS_CLASSES;
+ }
+ qdio_use_thresholds(q,QDIO_STATS_CLASSES/2);*/
+ }
+ for (i=0;i<no_output_qs;i++) {
+ q=irq_ptr->output_qs[i];
+ q->timing.threshold=max_output_threshold;
+/* for (j=0;j<QDIO_STATS_CLASSES;j++) {
+ q->threshold_classes[j].threshold=
+ min_output_threshold+
+ (max_output_threshold-min_output_threshold)/
+ QDIO_STATS_CLASSES;
+ }
+ qdio_use_thresholds(q,QDIO_STATS_CLASSES/2);*/
+ }
+}
+
+static int tiqdio_thinint_handler(__u32 intparm)
+{
+#ifdef QDIO_DBF_LIKE_HELL
+ QDIO_DBF_TEXT4(0,trace,"thin_int");
+#endif /* QDIO_DBF_LIKE_HELL */
+
+#ifdef QDIO_PERFORMANCE_STATS
+ perf_stats.thinints++;
+ perf_stats.start_time_inbound=NOW;
+#endif /* QDIO_PERFORMANCE_STATS */
+
+ /* VM will do the SVS for us
+ * issue SVS to benefit from iqdio interrupt avoidance (SVS clears AISOI)*/
+ if (!MACHINE_IS_VM) {
+ tiqdio_clear_global_summary();
+ }
+
+ tiqdio_inbound_checks();
+ return 0;
+}
+
+static void qdio_set_state(qdio_irq_t *irq_ptr,int state)
+{
+ int i;
+ char dbf_text[15];
+
+ QDIO_DBF_TEXT5(0,trace,"newstate");
+ sprintf(dbf_text,"%4x%4x",irq_ptr->irq,state);
+ QDIO_DBF_TEXT5(0,trace,dbf_text);
+
+ irq_ptr->state=state;
+ for (i=0;i<irq_ptr->no_input_qs;i++)
+ irq_ptr->input_qs[i]->state=state;
+ for (i=0;i<irq_ptr->no_output_qs;i++)
+ irq_ptr->output_qs[i]->state=state;
+ mb();
+}
+
+static void qdio_handler(int irq,devstat_t *devstat,struct pt_regs *p)
+{
+ qdio_irq_t *irq_ptr;
+ qdio_q_t *q;
+ int i;
+ int cstat,dstat;
+ int rqparam;
+ char dbf_text[15]="qintXXXX";
+
+ cstat = devstat->cstat;
+ dstat = devstat->dstat;
+ rqparam=devstat->intparm;
+
+ *((int*)(&dbf_text[4]))=irq;
+ QDIO_DBF_HEX4(0,trace,dbf_text,QDIO_DBF_TRACE_LEN);
+
+ if (!rqparam) {
+ QDIO_PRINT_STUPID("got unsolicited interrupt in qdio " \
+ "handler, irq 0x%x\n",irq);
+ return;
+ }
+
+ irq_ptr=qdio_get_irq_ptr(irq);
+ if (!irq_ptr) {
+ sprintf(dbf_text,"uint%4x",irq);
+ QDIO_DBF_TEXT2(1,trace,dbf_text);
+ QDIO_PRINT_ERR("received interrupt on unused irq 0x%04x!\n",
+ irq);
+ return;
+ }
+
+ if (devstat->flag&DEVSTAT_FLAG_SENSE_AVAIL) {
+ sprintf(dbf_text,"sens%4x",irq);
+ QDIO_DBF_TEXT2(1,trace,dbf_text);
+ QDIO_DBF_HEX0(0,sense,&devstat->ii.irb,QDIO_DBF_SENSE_LEN);
+
+ QDIO_PRINT_WARN("sense data available on qdio channel.\n");
+ HEXDUMP16(WARN,"irb: ",&devstat->ii.irb);
+ HEXDUMP16(WARN,"sense data: ",&devstat->ii.sense.data[0]);
+ }
+
+ irq_ptr->io_result_cstat=ioinfo[irq]->devstat.cstat;
+ irq_ptr->io_result_dstat=ioinfo[irq]->devstat.dstat;
+ irq_ptr->io_result_flags=ioinfo[irq]->devstat.flag;
+
+ if ( (rqparam==QDIO_DOING_ACTIVATE) &&
+ (cstat & SCHN_STAT_PCI) ) {
+#ifdef QDIO_PERFORMANCE_STATS
+ perf_stats.pcis++;
+ perf_stats.start_time_inbound=NOW;
+#endif /* QDIO_PERFORMANCE_STATS */
+ for (i=0;i<irq_ptr->no_input_qs;i++) {
+ q=irq_ptr->input_qs[i];
+ if (q->is_input_q&QDIO_FLAG_NO_INPUT_INTERRUPT_CONTEXT)
+ qdio_mark_q(q);
+ else {
+#ifdef QDIO_PERFORMANCE_STATS
+ perf_stats.tl_runs--;
+#endif /* QDIO_PERFORMANCE_STATS */
+ qdio_inbound_processing(q);
+ }
+ }
+ if (irq_ptr->hydra_gives_outbound_pcis) {
+ for (i=0;i<irq_ptr->no_output_qs;i++) {
+ q=irq_ptr->output_qs[i];
+#ifdef QDIO_PERFORMANCE_STATS
+ perf_stats.tl_runs--;
+#endif /* QDIO_PERFORMANCE_STATS */
+ if (!qdio_is_outbound_q_done(q)) {
+ if (!irq_ptr->sync_done_on_outb_pcis) {
+ SYNC_MEMORY;
+ }
+ qdio_outbound_processing(q);
+ }
+ }
+ }
+ return;
+ }
+
+ if ( (rqparam==QDIO_DOING_ACTIVATE) &&
+ (!cstat) &&
+ (!dstat) ) {
+ rqparam=QDIO_DOING_CLEANUP;
+ }
+
+ if ( (rqparam==QDIO_DOING_ESTABLISH) &&
+ ( (cstat) ||
+ (dstat & ~(DEV_STAT_CHN_END|DEV_STAT_DEV_END)) ) ) {
+ sprintf(dbf_text,"ick1%4x",irq);
+ QDIO_DBF_TEXT2(1,trace,dbf_text);
+ QDIO_DBF_HEX2(0,trace,&rqparam,sizeof(int));
+ QDIO_DBF_HEX2(0,trace,&dstat,sizeof(int));
+ QDIO_DBF_HEX2(0,trace,&cstat,sizeof(int));
+ QDIO_PRINT_ERR("received check condition on establish " \
+ "queues on irq 0x%x (cs=x%x, ds=x%x).\n",
+ irq,cstat,dstat);
+ qdio_set_state(irq_ptr,QDIO_IRQ_STATE_STOPPED);
+ return;
+ }
+
+ if ( ( (rqparam==QDIO_DOING_ACTIVATE) &&
+ (dstat==(DEV_STAT_CHN_END|DEV_STAT_DEV_END)) ) ||
+ ( (rqparam==QDIO_DOING_CLEANUP) || (!rqparam) ) ) {
+ qdio_wakeup(&irq_ptr->interrupt_has_been_cleaned,irq_ptr);
+ return;
+ }
+
+ if ( (rqparam==QDIO_DOING_ACTIVATE) &&
+ ( (cstat & ~SCHN_STAT_PCI) ||
+ (dstat) ) ) {
+ sprintf(dbf_text,"ick2%4x",irq);
+ QDIO_DBF_TEXT2(1,trace,dbf_text);
+ QDIO_DBF_HEX2(0,trace,&rqparam,sizeof(int));
+ QDIO_DBF_HEX2(0,trace,&dstat,sizeof(int));
+ QDIO_DBF_HEX2(0,trace,&cstat,sizeof(int));
+ QDIO_PRINT_ERR("received check condition on activate " \
+ "queues on irq 0x%x (cs=x%x, ds=x%x).\n",
+ irq,cstat,dstat);
+ if (irq_ptr->no_input_qs) {
+ q=irq_ptr->input_qs[0];
+ } else if (irq_ptr->no_output_qs) {
+ q=irq_ptr->output_qs[0];
+ } else {
+ QDIO_PRINT_ERR("oops... no queue registered on irq " \
+ "0x%x!?\n",irq);
+ goto omit_handler_call;
+ }
+ q->handler(q->irq,QDIO_STATUS_ACTIVATE_CHECK_CONDITION|
+ QDIO_STATUS_LOOK_FOR_ERROR,
+ 0,0,0,-1,-1,q->int_parm);
+ omit_handler_call:
+ qdio_set_state(irq_ptr,QDIO_IRQ_STATE_STOPPED);
+ return;
+ }
+
+ qdio_wakeup(&irq_ptr->interrupt_has_arrived,irq_ptr);
+}
+
+/* this is for mp3 */
+int qdio_synchronize(int irq,unsigned int flags,
+ unsigned int queue_number)
+{
+ unsigned int gpr2,gpr3;
+ int cc;
+ qdio_q_t *q;
+ qdio_irq_t *irq_ptr;
+ char dbf_text[15]="SyncXXXX";
+ void *ptr;
+
+ *((int*)(&dbf_text[4]))=irq;
+ QDIO_DBF_HEX4(0,trace,dbf_text,QDIO_DBF_TRACE_LEN);
+ *((int*)(&dbf_text[0]))=flags;
+ *((int*)(&dbf_text[4]))=queue_number;
+ QDIO_DBF_HEX4(0,trace,dbf_text,QDIO_DBF_TRACE_LEN);
+
+ irq_ptr=qdio_get_irq_ptr(irq);
+ if (!irq_ptr) return -ENODEV;
+
+ if (flags&QDIO_FLAG_SYNC_INPUT) {
+ q=irq_ptr->input_qs[queue_number];
+ if (!q) return -EINVAL;
+
+ gpr2=0;
+ gpr3=q->mask;
+ } else if (flags&QDIO_FLAG_SYNC_OUTPUT) {
+ q=irq_ptr->output_qs[queue_number];
+ if (!q) return -EINVAL;
+
+ gpr2=q->mask;
+ gpr3=0;
+ } else return -EINVAL;
+
+#ifdef QDIO_32_BIT
+ asm volatile (
+ "lhi 0,2 \n\t"
+ "lr 1,%1 \n\t"
+ "lr 2,%2 \n\t"
+ "lr 3,%3 \n\t"
+ "siga 0 \n\t"
+ "ipm %0 \n\t"
+ "srl %0,28 \n\t"
+ : "=d" (cc)
+ : "d" (0x10000|q->irq), "d" (gpr2), "d" (gpr3)
+ : "cc", "0", "1", "2", "3"
+ );
+#else /* QDIO_32_BIT */
+ asm volatile (
+ "lghi 0,2 \n\t"
+ "llgfr 1,%1 \n\t"
+ "llgfr 2,%2 \n\t"
+ "llgfr 3,%3 \n\t"
+ "siga 0 \n\t"
+ "ipm %0 \n\t"
+ "srl %0,28 \n\t"
+ : "=d" (cc)
+ : "d" (0x10000|q->irq), "d" (gpr2), "d" (gpr3)
+ : "cc", "0", "1", "2", "3"
+ );
+#endif /* QDIO_32_BIT */
+
+ ptr=&cc;
+ if (cc) QDIO_DBF_HEX3(0,trace,&ptr,sizeof(int));
+
+ return cc;
+}
+
+unsigned char qdio_get_slsb_state(int irq,unsigned int flag,
+ unsigned int queue_number,
+ unsigned int qidx)
+{
+ qdio_irq_t *irq_ptr;
+ qdio_q_t *q;
+
+ irq_ptr=qdio_get_irq_ptr(irq);
+ if (!irq_ptr) return SLSB_ERROR_DURING_LOOKUP;
+
+ if (flag&QDIO_FLAG_SYNC_INPUT) {
+ q=irq_ptr->input_qs[queue_number];
+ } else if (flag&QDIO_FLAG_SYNC_OUTPUT) {
+ q=irq_ptr->output_qs[queue_number];
+ } else return SLSB_ERROR_DURING_LOOKUP;
+
+ return q->slsb.acc.val[qidx&(QDIO_MAX_BUFFERS_PER_Q-1)];
+}
+
+static int qdio_chsc(qdio_chsc_area_t *chsc_area)
+{
+ int cc;
+
+#ifdef QDIO_32_BIT
+ asm volatile (
+ ".insn rre,0xb25f0000,%1,0 \n\t"
+ "ipm %0 \n\t"
+ "srl %0,28 \n\t"
+ : "=d" (cc) : "d" (chsc_area) : "cc"
+ );
+#else /* QDIO_32_BIT */
+ asm volatile (
+ ".insn rre,0xb25f0000,%1,0 \n\t"
+ "ipm %0 \n\t"
+ "srl %0,28 \n\t"
+ : "=d" (cc) : "d" (chsc_area) : "cc"
+ );
+#endif /* QDIO_32_BIT */
+
+ return cc;
+}
+
+static unsigned char qdio_check_siga_needs(int sch)
+{
+ int resp_code,result;
+
+ memset(chsc_area,0,sizeof(qdio_chsc_area_t));
+ chsc_area->request_block.command_code1=0x0010; /* length */
+ chsc_area->request_block.command_code2=0x0024; /* op code */
+ chsc_area->request_block.first_sch=sch;
+ chsc_area->request_block.last_sch=sch;
+
+ result=qdio_chsc(chsc_area);
+
+ if (result) {
+ QDIO_PRINT_WARN("CHSC returned cc %i. Using all " \
+ "SIGAs for sch x%x.\n",
+ result,sch);
+ return -1; /* all flags set */
+ }
+
+ resp_code=chsc_area->request_block.operation_data_area.
+ store_qdio_data_response.response_code;
+ if (resp_code!=QDIO_CHSC_RESPONSE_CODE_OK) {
+ QDIO_PRINT_WARN("response upon checking SIGA needs " \
+ "is 0x%x. Using all SIGAs for sch x%x.\n",
+ resp_code,sch);
+ return -1; /* all flags set */
+ }
+ if (
+ (!(chsc_area->request_block.operation_data_area.
+ store_qdio_data_response.flags&CHSC_FLAG_QDIO_CAPABILITY)) ||
+ (!(chsc_area->request_block.operation_data_area.
+ store_qdio_data_response.flags&CHSC_FLAG_VALIDITY)) ||
+ (chsc_area->request_block.operation_data_area.
+ store_qdio_data_response.sch!=sch)
+ ) {
+ QDIO_PRINT_WARN("huh? problems checking out sch x%x... " \
+ "using all SIGAs.\n",sch);
+ return CHSC_FLAG_SIGA_INPUT_NECESSARY |
+ CHSC_FLAG_SIGA_OUTPUT_NECESSARY |
+ CHSC_FLAG_SIGA_SYNC_NECESSARY; /* worst case */
+ }
+
+ return chsc_area->request_block.operation_data_area.
+ store_qdio_data_response.qdioac;
+}
+
+static int qdio_check_for_hydra_thinints(void)
+{
+ int i,result;
+
+ memset(chsc_area,0,sizeof(qdio_chsc_area_t));
+ chsc_area->request_block.command_code1=0x0010;
+ chsc_area->request_block.command_code2=0x0010;
+ result=qdio_chsc(chsc_area);
+
+ if (result) {
+ QDIO_PRINT_WARN("CHSC returned cc %i. Won't use adapter " \
+ "interrupts for any Hydra.\n",result);
+ return 0;
+ }
+
+ i=chsc_area->request_block.operation_data_area.
+ store_qdio_data_response.response_code;
+ if (i!=1) {
+ QDIO_PRINT_WARN("Was not able to determine general " \
+ "characteristics of all Hydras aboard.\n");
+ return 0;
+ }
+
+ /* 4: request block
+ * 2: general char
+ * 512: chsc char */
+ /* check for bit 67 */
+ if ( (*(((unsigned int*)(chsc_area))+4+2+2)&0x10000000)!=0x10000000) {
+ return 0;
+ } else {
+ return 1;
+ }
+}
+
+/* the chsc_area is locked by the lock in qdio_activate */
+static unsigned int tiqdio_check_chsc_availability(void) {
+ int result;
+ int i;
+
+ memset(chsc_area,0,sizeof(qdio_chsc_area_t));
+ chsc_area->request_block.command_code1=0x0010;
+ chsc_area->request_block.command_code2=0x0010;
+ result=qdio_chsc(chsc_area);
+ if (result) {
+ QDIO_PRINT_WARN("Was not able to determine " \
+ "available CHSCs, cc=%i.\n",
+ result);
+ result=-EIO;
+ goto exit;
+ }
+ result=0;
+ i=chsc_area->request_block.operation_data_area.
+ store_qdio_data_response.response_code;
+ if (i!=1) {
+ QDIO_PRINT_WARN("Was not able to determine " \
+ "available CHSCs.\n");
+ result=-EIO;
+ goto exit;
+ }
+ /* 4: request block
+ * 2: general char
+ * 512: chsc char */
+ /* check for bit 41 */
+ if ( (*(((unsigned int*)(chsc_area))+4+2+1)&0x00400000)!=0x00400000) {
+ QDIO_PRINT_WARN("Adapter interruption facility not " \
+ "installed.\n");
+ result=-ENOENT;
+ goto exit;
+ }
+ /* check for bits 107 and 108 */
+ if ( (*(((unsigned int*)(chsc_area))+4+512+3)&0x00180000)!=
+ 0x00180000 ) {
+ QDIO_PRINT_WARN("Set Chan Subsys. Char. & Fast-CHSCs " \
+ "not available.\n");
+ result=-ENOENT;
+ goto exit;
+ }
+exit:
+ return result;
+}
+
+/* the chsc_area is locked by the lock in qdio_activate */
+static unsigned int tiqdio_set_subchannel_ind(qdio_irq_t *irq_ptr,
+ int reset_to_zero)
+{
+ unsigned long real_addr_local_summary_bit;
+ unsigned long real_addr_dev_st_chg_ind;
+ void *ptr;
+ char dbf_text[15];
+
+ unsigned int resp_code;
+ int result;
+
+ if (!irq_ptr->is_thinint_irq) return -ENODEV;
+
+ if (reset_to_zero) {
+ real_addr_local_summary_bit=0;
+ real_addr_dev_st_chg_ind=0;
+ } else {
+ real_addr_local_summary_bit=
+ virt_to_phys((volatile void *)indicators);
+ real_addr_dev_st_chg_ind=
+ virt_to_phys((volatile void *)irq_ptr->dev_st_chg_ind);
+ }
+
+ memset(chsc_area,0,sizeof(qdio_chsc_area_t));
+ chsc_area->request_block.command_code1=0x0fe0;
+ chsc_area->request_block.command_code2=0x0021;
+ chsc_area->request_block.operation_code=0;
+ chsc_area->request_block.image_id=0;
+
+ chsc_area->request_block.operation_data_area.set_chsc.
+ summary_indicator_addr=real_addr_local_summary_bit;
+ chsc_area->request_block.operation_data_area.set_chsc.
+ subchannel_indicator_addr=real_addr_dev_st_chg_ind;
+ chsc_area->request_block.operation_data_area.set_chsc.
+ ks=QDIO_STORAGE_ACC_KEY;
+ chsc_area->request_block.operation_data_area.set_chsc.
+ kc=QDIO_STORAGE_ACC_KEY;
+ chsc_area->request_block.operation_data_area.set_chsc.
+ isc=TIQDIO_THININT_ISC;
+ chsc_area->request_block.operation_data_area.set_chsc.
+ subsystem_id=(1<<16)+irq_ptr->irq;
+
+ result=qdio_chsc(chsc_area);
+ if (result) {
+ QDIO_PRINT_WARN("could not set indicators on irq x%x, " \
+ "cc=%i.\n",irq_ptr->irq,result);
+ return -EIO;
+ }
+
+ resp_code=chsc_area->response_block.response_code;
+ if (resp_code!=QDIO_CHSC_RESPONSE_CODE_OK) {
+ QDIO_PRINT_WARN("response upon setting indicators " \
+ "is 0x%x.\n",resp_code);
+ sprintf(dbf_text,"sidR%4x",resp_code);
+ QDIO_DBF_TEXT1(0,trace,dbf_text);
+ QDIO_DBF_TEXT1(0,setup,dbf_text);
+ ptr=&chsc_area->response_block;
+ QDIO_DBF_HEX2(1,setup,&ptr,QDIO_DBF_SETUP_LEN);
+ return -EIO;
+ }
+
+ QDIO_DBF_TEXT2(0,setup,"setscind");
+ QDIO_DBF_HEX2(0,setup,&real_addr_local_summary_bit,
+ sizeof(unsigned long));
+ QDIO_DBF_HEX2(0,setup,&real_addr_dev_st_chg_ind,sizeof(unsigned long));
+ return 0;
+}
+
+/* chsc_area would have to be locked if called from outside qdio_activate */
+static unsigned int tiqdio_set_delay_target(qdio_irq_t *irq_ptr,
+ unsigned long delay_target)
+{
+ unsigned int resp_code;
+ int result;
+ void *ptr;
+ char dbf_text[15];
+
+ if (!irq_ptr->is_thinint_irq) return -ENODEV;
+
+ memset(chsc_area,0,sizeof(qdio_chsc_area_t));
+ chsc_area->request_block.command_code1=0x0fe0;
+ chsc_area->request_block.command_code2=0x1027;
+ chsc_area->request_block.operation_data_area.set_chsc_fast.
+ delay_target=delay_target<<16;
+
+ result=qdio_chsc(chsc_area);
+ if (result) {
+ QDIO_PRINT_WARN("could not set delay target on irq x%x, " \
+ "cc=%i. Continuing.\n",irq_ptr->irq,result);
+ return -EIO;
+ }
+
+ resp_code=chsc_area->response_block.response_code;
+ if (resp_code!=QDIO_CHSC_RESPONSE_CODE_OK) {
+ QDIO_PRINT_WARN("response upon setting delay target " \
+ "is 0x%x. Continuing.\n",resp_code);
+ sprintf(dbf_text,"sdtR%4x",resp_code);
+ QDIO_DBF_TEXT1(0,trace,dbf_text);
+ QDIO_DBF_TEXT1(0,setup,dbf_text);
+ ptr=&chsc_area->response_block;
+ QDIO_DBF_HEX2(1,trace,&ptr,QDIO_DBF_TRACE_LEN);
+ }
+ QDIO_DBF_TEXT2(0,trace,"delytrgt");
+ QDIO_DBF_HEX2(0,trace,&delay_target,sizeof(unsigned long));
+ return 0;
+}
+
+int qdio_cleanup(int irq,int how)
+{
+ qdio_irq_t *irq_ptr;
+ int i,result;
+ int do_an_irqrestore=0;
+ unsigned long flags;
+ int timeout;
+ char dbf_text[15]="12345678";
+
+ result=0;
+ sprintf(dbf_text,"qcln%4x",irq);
+ QDIO_DBF_TEXT1(0,trace,dbf_text);
+ QDIO_DBF_TEXT0(0,setup,dbf_text);
+
+ irq_ptr=qdio_get_irq_ptr(irq);
+ if (!irq_ptr) return -ENODEV;
+
+ spin_lock(&irq_ptr->setting_up_lock);
+
+ /* mark all qs as uninteresting */
+ for (i=0;i<irq_ptr->no_input_qs;i++) {
+ atomic_set(&irq_ptr->input_qs[i]->is_in_shutdown,1);
+ }
+ for (i=0;i<irq_ptr->no_output_qs;i++) {
+ atomic_set(&irq_ptr->output_qs[i]->is_in_shutdown,1);
+ }
+
+ tasklet_kill(&tiqdio_tasklet);
+
+ for (i=0;i<irq_ptr->no_input_qs;i++) {
+ qdio_unmark_q(irq_ptr->input_qs[i]);
+ tasklet_kill(&irq_ptr->input_qs[i]->tasklet);
+ if (qdio_wait_for_no_use_count(&irq_ptr->input_qs[i]->
+ use_count))
+ result=-EINPROGRESS;
+ }
+
+ for (i=0;i<irq_ptr->no_output_qs;i++) {
+ tasklet_kill(&irq_ptr->output_qs[i]->tasklet);
+ if (qdio_wait_for_no_use_count(&irq_ptr->output_qs[i]->
+ use_count))
+ result=-EINPROGRESS;
+ }
+
+ atomic_set(&irq_ptr->interrupt_has_been_cleaned,0);
+
+ /* cleanup subchannel */
+ s390irq_spin_lock_irqsave(irq,flags);
+ if (how&QDIO_FLAG_CLEANUP_USING_CLEAR) {
+ clear_IO(irq_ptr->irq,QDIO_DOING_CLEANUP,0);
+ timeout=QDIO_CLEANUP_CLEAR_TIMEOUT;
+ } else if (how&QDIO_FLAG_CLEANUP_USING_HALT) {
+ halt_IO(irq_ptr->irq,QDIO_DOING_CLEANUP,0);
+ timeout=QDIO_CLEANUP_HALT_TIMEOUT;
+ } else { /* default behaviour */
+ halt_IO(irq_ptr->irq,QDIO_DOING_CLEANUP,0);
+ timeout=QDIO_CLEANUP_HALT_TIMEOUT;
+ }
+ s390irq_spin_unlock_irqrestore(irq,flags);
+
+ if (qdio_sleepon(&irq_ptr->interrupt_has_been_cleaned,
+ timeout,irq_ptr)==-ETIME) {
+ s390irq_spin_lock_irqsave(irq,flags);
+ QDIO_PRINT_INFO("Did not get interrupt on %s_IO, " \
+ "irq=0x%x.\n",
+ (how==QDIO_FLAG_CLEANUP_USING_CLEAR)?
+ "clear":"halt",irq);
+ do_an_irqrestore=1;
+ }
+
+ if (irq_ptr->is_thinint_irq) {
+ qdio_put_indicator((__u32*)irq_ptr->dev_st_chg_ind);
+ tiqdio_set_subchannel_ind(irq_ptr,1); /* reset adapter
+ interrupt indicators */
+ }
+
+ /* exchange int handlers, if necessary */
+ if ((void*)ioinfo[irq]->irq_desc.handler
+ ==(void*)qdio_handler) {
+ ioinfo[irq]->irq_desc.handler=
+ irq_ptr->original_int_handler;
+/* irq_ptr->original_int_handler=NULL; */
+ }
+
+ qdio_set_state(irq_ptr,QDIO_IRQ_STATE_INACTIVE);
+
+ if (do_an_irqrestore)
+ s390irq_spin_unlock_irqrestore(irq,flags);
+
+ spin_unlock(&irq_ptr->setting_up_lock);
+
+ qdio_remove_irq_ptr(irq_ptr);
+ qdio_release_irq_memory(irq_ptr);
+
+ QDIO_DBF_TEXT3(0,setup,"MOD_DEC_");
+ MOD_DEC_USE_COUNT;
+
+ return result;
+}
+
+unsigned long qdio_get_characteristics(int irq)
+{
+ qdio_irq_t *irq_ptr;
+ int result=0;
+
+ irq_ptr=qdio_get_irq_ptr(irq);
+ if (!irq_ptr) return -ENODEV;
+
+ if (irq_ptr->state!=QDIO_IRQ_STATE_ACTIVE) {
+ return -EBUSY;
+ }
+
+ if (irq_ptr->state==QDIO_IRQ_STATE_INACTIVE) {
+ result|=QDIO_STATE_INACTIVE;
+ } else if (irq_ptr->state==QDIO_IRQ_STATE_ESTABLISHED) {
+ result|=QDIO_STATE_ESTABLISHED;
+ } else if (irq_ptr->state==QDIO_IRQ_STATE_ACTIVE) {
+ result|=QDIO_STATE_ACTIVE;
+ } else if (irq_ptr->state==QDIO_IRQ_STATE_STOPPED) {
+ result|=QDIO_STATE_STOPPED;
+ }
+
+ if (irq_ptr->hydra_gives_outbound_pcis)
+ result|=QDIO_STATE_MUST_USE_OUTB_PCI;
+
+ return result;
+}
+
+int qdio_initialize(qdio_initialize_t *init_data)
+{
+ int i,ciw_cnt;
+ unsigned long saveflags;
+ qdio_irq_t *irq_ptr=NULL;
+ int result,result2;
+ int found;
+ unsigned long flags;
+ char dbf_text[20]; /* if a printf would print out more than 8 chars */
+
+ down_interruptible(&init_sema);
+
+ sprintf(dbf_text,"qini%4x",init_data->irq);
+ QDIO_DBF_TEXT0(0,setup,dbf_text);
+ QDIO_DBF_TEXT0(0,trace,dbf_text);
+ sprintf(dbf_text,"qfmt:%x",init_data->q_format);
+ QDIO_DBF_TEXT0(0,setup,dbf_text);
+ QDIO_DBF_TEXT0(0,setup,init_data->adapter_name);
+ QDIO_DBF_HEX0(0,setup,init_data->adapter_name,8);
+ sprintf(dbf_text,"qpff%4x",init_data->qib_param_field_format);
+ QDIO_DBF_TEXT0(0,setup,dbf_text);
+ QDIO_DBF_HEX0(0,setup,&init_data->qib_param_field,sizeof(char*));
+ QDIO_DBF_HEX0(0,setup,&init_data->input_slib_elements,sizeof(long*));
+ QDIO_DBF_HEX0(0,setup,&init_data->output_slib_elements,sizeof(long*));
+ sprintf(dbf_text,"miit%4x",init_data->min_input_threshold);
+ QDIO_DBF_TEXT0(0,setup,dbf_text);
+ sprintf(dbf_text,"mait%4x",init_data->min_input_threshold);
+ QDIO_DBF_TEXT0(0,setup,dbf_text);
+ sprintf(dbf_text,"miot%4x",init_data->max_output_threshold);
+ QDIO_DBF_TEXT0(0,setup,dbf_text);
+ sprintf(dbf_text,"maot%4x",init_data->max_output_threshold);
+ QDIO_DBF_TEXT0(0,setup,dbf_text);
+ sprintf(dbf_text,"niq:%4x",init_data->no_input_qs);
+ QDIO_DBF_TEXT0(0,setup,dbf_text);
+ sprintf(dbf_text,"noq:%4x",init_data->no_output_qs);
+ QDIO_DBF_TEXT0(0,setup,dbf_text);
+ QDIO_DBF_HEX0(0,setup,&init_data->input_handler,sizeof(void*));
+ QDIO_DBF_HEX0(0,setup,&init_data->output_handler,sizeof(void*));
+ QDIO_DBF_HEX0(0,setup,&init_data->int_parm,sizeof(long));
+ QDIO_DBF_HEX0(0,setup,&init_data->flags,sizeof(long));
+ QDIO_DBF_HEX0(0,setup,&init_data->input_sbal_addr_array,sizeof(void*));
+ QDIO_DBF_HEX0(0,setup,&init_data->output_sbal_addr_array,sizeof(void*));
+ flags=init_data->flags;
+
+ /* sanity checks */
+ if (qdio_get_irq_ptr(init_data->irq)) {
+ result=-EBUSY;
+ goto out;
+ }
+
+ if (ioinfo[init_data->irq]==INVALID_STORAGE_AREA) {
+ result=-ENODEV;
+ goto out;
+ }
+
+ if (!ioinfo[init_data->irq]) {
+ QDIO_PRINT_WARN("ioinfo[%i] is NULL!\n",init_data->irq);
+ result=-ENODEV;
+ goto out;
+ }
+
+#define DEVSTAT_FLAG_IRQ_QDIO ~0UL
+ if (!(ioinfo[init_data->irq]->devstat.flag&DEVSTAT_FLAG_IRQ_QDIO)) {
+ QDIO_PRINT_WARN("ioinfo[%i]->devstat.flag=0x%08x\n",
+ init_data->irq,
+ ioinfo[init_data->irq]->devstat.flag);
+ result=-ENODEV;
+ goto out;
+ }
+
+ if ( (init_data->no_input_qs>QDIO_MAX_QUEUES_PER_IRQ) ||
+ (init_data->no_output_qs>QDIO_MAX_QUEUES_PER_IRQ) ||
+ ((init_data->no_input_qs) && (!init_data->input_handler)) ||
+ ((init_data->no_output_qs) && (!init_data->output_handler)) ) {
+ result=-EINVAL;
+ goto out;
+ }
+
+ if ( (init_data->flags&QDIO_INBOUND_0COPY_SBALS)&&
+ (!init_data->input_sbal_addr_array) ) {
+ result=-EINVAL;
+ goto out;
+ }
+ if ( (init_data->flags&QDIO_OUTBOUND_0COPY_SBALS)&&
+ (!init_data->output_sbal_addr_array) ) {
+ result=-EINVAL;
+ goto out;
+ }
+
+ /* create irq */
+ irq_ptr=kmalloc(sizeof(qdio_irq_t),GFP_DMA);
+
+ QDIO_DBF_TEXT0(0,setup,"irq_ptr:");
+ QDIO_DBF_HEX0(0,setup,&irq_ptr,sizeof(void*));
+
+ if (!irq_ptr) {
+ QDIO_PRINT_ERR("kmalloc of irq_ptr failed!\n");
+ result=-ENOMEM;
+ goto out;
+ }
+
+ memset(irq_ptr,0,sizeof(qdio_irq_t)); /* wipes qib.ac,
+ required by ar7063 */
+
+ irq_ptr->qdr=kmalloc(sizeof(qdr_t),GFP_DMA);
+ if (!(irq_ptr->qdr)) {
+ kfree(irq_ptr->qdr);
+ kfree(irq_ptr);
+ QDIO_PRINT_ERR("kmalloc of irq_ptr->qdr failed!\n");
+ result=-ENOMEM;
+ goto out;
+ }
+ memset(irq_ptr->qdr,0,sizeof(qdr_t));
+ QDIO_DBF_TEXT0(0,setup,"qdr:");
+ QDIO_DBF_HEX0(0,setup,&irq_ptr->qdr,sizeof(void*));
+
+ init_waitqueue_head(&irq_ptr->wait_q);
+
+ irq_ptr->int_parm=init_data->int_parm;
+
+ irq_ptr->irq=init_data->irq;
+ irq_ptr->no_input_qs=init_data->no_input_qs;
+ irq_ptr->no_output_qs=init_data->no_output_qs;
+
+ if (init_data->q_format==QDIO_IQDIO_QFMT) {
+ irq_ptr->is_iqdio_irq=1;
+ irq_ptr->is_thinint_irq=1;
+ } else {
+ irq_ptr->is_iqdio_irq=0;
+ irq_ptr->is_thinint_irq=hydra_thinints;
+ }
+ sprintf(dbf_text,"is_i_t%1x%1x",
+ irq_ptr->is_iqdio_irq,irq_ptr->is_thinint_irq);
+ QDIO_DBF_TEXT2(0,setup,dbf_text);
+
+ if (irq_ptr->is_thinint_irq) {
+ irq_ptr->dev_st_chg_ind=qdio_get_indicator();
+ QDIO_DBF_HEX1(0,setup,&irq_ptr->dev_st_chg_ind,sizeof(void*));
+ if (!irq_ptr->dev_st_chg_ind) {
+ QDIO_PRINT_WARN("no indicator location available " \
+ "for irq 0x%x\n",irq_ptr->irq);
+ qdio_release_irq_memory(irq_ptr);
+ result=-ENOBUFS;
+ goto out;
+ }
+ }
+
+ if (flags&QDIO_PFIX)
+ irq_ptr->other_flags |= QDIO_PFIX;
+
+ /* defaults */
+ irq_ptr->commands.eq=DEFAULT_ESTABLISH_QS_CMD;
+ irq_ptr->commands.count_eq=DEFAULT_ESTABLISH_QS_COUNT;
+ irq_ptr->commands.aq=DEFAULT_ACTIVATE_QS_CMD;
+ irq_ptr->commands.count_aq=DEFAULT_ACTIVATE_QS_COUNT;
+
+ if (!qdio_alloc_qs(irq_ptr,init_data->no_input_qs,
+ init_data->no_output_qs,
+ init_data->input_handler,
+ init_data->output_handler,init_data->int_parm,
+ init_data->q_format,init_data->flags,
+ init_data->input_sbal_addr_array,
+ init_data->output_sbal_addr_array)) {
+ qdio_release_irq_memory(irq_ptr);
+ result=-ENOMEM;
+ goto out;
+ }
+
+ qdio_set_state(irq_ptr,QDIO_IRQ_STATE_INACTIVE);
+
+ irq_ptr->setting_up_lock=SPIN_LOCK_UNLOCKED;
+
+ MOD_INC_USE_COUNT;
+ QDIO_DBF_TEXT3(0,setup,"MOD_INC_");
+
+ spin_lock(&irq_ptr->setting_up_lock);
+
+ qdio_insert_irq_ptr(irq_ptr);
+
+ qdio_fill_thresholds(irq_ptr,init_data->no_input_qs,
+ init_data->no_output_qs,
+ init_data->min_input_threshold,
+ init_data->max_input_threshold,
+ init_data->min_output_threshold,
+ init_data->max_output_threshold);
+
+ /* fill in qdr */
+ irq_ptr->qdr->qfmt=init_data->q_format;
+ irq_ptr->qdr->iqdcnt=init_data->no_input_qs;
+ irq_ptr->qdr->oqdcnt=init_data->no_output_qs;
+ irq_ptr->qdr->iqdsz=sizeof(qdesfmt0_t)/4; /* size in words */
+ irq_ptr->qdr->oqdsz=sizeof(qdesfmt0_t)/4;
+
+ irq_ptr->qdr->qiba=QDIO_PFIX_GET_ADDR(&irq_ptr->qib);
+ irq_ptr->qdr->qkey=QDIO_STORAGE_ACC_KEY;
+
+ /* fill in qib */
+ irq_ptr->qib.qfmt=init_data->q_format;
+ if (init_data->no_input_qs) irq_ptr->qib.isliba=
+ QDIO_PFIX_GET_ADDR(irq_ptr->input_qs[0]->slib);
+ if (init_data->no_output_qs) irq_ptr->qib.osliba=(unsigned long)
+ QDIO_PFIX_GET_ADDR(irq_ptr->output_qs[0]->slib);
+ memcpy(irq_ptr->qib.ebcnam,init_data->adapter_name,8);
+
+ qdio_set_impl_params(irq_ptr,init_data->qib_param_field_format,
+ init_data->qib_param_field,
+ init_data->no_input_qs,
+ init_data->no_output_qs,
+ init_data->input_slib_elements,
+ init_data->output_slib_elements);
+
+ /* first input descriptors, then output descriptors */
+ for (i=0;i<init_data->no_input_qs;i++) {
+ irq_ptr->input_qs[i]->is_iqdio_q=
+ (init_data->q_format==QDIO_IQDIO_QFMT)?1:0;
+ irq_ptr->input_qs[i]->is_thinint_q=irq_ptr->is_thinint_irq;
+
+ irq_ptr->qdr->qdf0[i].sliba=
+ QDIO_PFIX_GET_ADDR(irq_ptr->input_qs[i]->slib);
+
+ irq_ptr->qdr->qdf0[i].sla=
+ QDIO_PFIX_GET_ADDR(irq_ptr->input_qs[i]->sl);
+
+ irq_ptr->qdr->qdf0[i].slsba=
+ QDIO_PFIX_GET_ADDR
+ ((void *)&irq_ptr->input_qs[i]->slsb.acc.val[0]);
+
+ irq_ptr->qdr->qdf0[i].akey=QDIO_STORAGE_ACC_KEY;
+ irq_ptr->qdr->qdf0[i].bkey=QDIO_STORAGE_ACC_KEY;
+ irq_ptr->qdr->qdf0[i].ckey=QDIO_STORAGE_ACC_KEY;
+ irq_ptr->qdr->qdf0[i].dkey=QDIO_STORAGE_ACC_KEY;
+ }
+
+ for (i=0;i<init_data->no_output_qs;i++) {
+ irq_ptr->output_qs[i]->is_iqdio_q=
+ (init_data->q_format==QDIO_IQDIO_QFMT)?1:0;
+ irq_ptr->output_qs[i]->is_thinint_q=irq_ptr->is_thinint_irq;
+
+ irq_ptr->qdr->qdf0[i+init_data->no_input_qs].sliba=
+ QDIO_PFIX_GET_ADDR(irq_ptr->output_qs[i]->slib);
+
+ irq_ptr->qdr->qdf0[i+init_data->no_input_qs].sla=
+ QDIO_PFIX_GET_ADDR(irq_ptr->output_qs[i]->sl);
+
+ irq_ptr->qdr->qdf0[i+init_data->no_input_qs].slsba=
+ QDIO_PFIX_GET_ADDR
+ ((void *)&irq_ptr->output_qs[i]->slsb.acc.val[0]);
+
+ irq_ptr->qdr->qdf0[i+init_data->no_input_qs].akey=
+ QDIO_STORAGE_ACC_KEY;
+ irq_ptr->qdr->qdf0[i+init_data->no_input_qs].bkey=
+ QDIO_STORAGE_ACC_KEY;
+ irq_ptr->qdr->qdf0[i+init_data->no_input_qs].ckey=
+ QDIO_STORAGE_ACC_KEY;
+ irq_ptr->qdr->qdf0[i+init_data->no_input_qs].dkey=
+ QDIO_STORAGE_ACC_KEY;
+ }
+ /* qdr, qib, sls, slsbs, slibs, sbales filled. */
+
+ s390irq_spin_lock_irqsave(irq_ptr->irq,saveflags);
+ /* keep track of original int handler */
+ irq_ptr->original_int_handler=ioinfo[irq_ptr->irq]->irq_desc.handler;
+
+ /* insert qdio int handler */
+ ioinfo[irq_ptr->irq]->irq_desc.handler=(void*)qdio_handler;
+
+ s390irq_spin_unlock_irqrestore(irq_ptr->irq,saveflags);
+
+#define TAKEOVER_CIW(x) irq_ptr->commands.x=ioinfo[irq_ptr->irq]->senseid.ciw[ciw_cnt].cmd; irq_ptr->commands.count_##x=ioinfo[irq_ptr->irq]->senseid.ciw[ciw_cnt].count
+ /* get qdio commands */
+ found=0;
+ for (ciw_cnt=0;ciw_cnt<MAX_CIWS;ciw_cnt++) {
+ switch (ioinfo[irq_ptr->irq]->senseid.ciw[ciw_cnt].ct) {
+ case CIW_TYPE_RCD: TAKEOVER_CIW(rcd); break;
+ case CIW_TYPE_SII: TAKEOVER_CIW(sii); break;
+ case CIW_TYPE_RNI: TAKEOVER_CIW(rni); break;
+ case CIW_TYPE_EQUEUE: TAKEOVER_CIW(eq); found++; break;
+ case CIW_TYPE_AQUEUE: TAKEOVER_CIW(aq); found++; break;
+ }
+ if ( (ciw_cnt>0) &&
+ (ioinfo[irq_ptr->irq]->senseid.ciw[ciw_cnt].ct==0) &&
+ (ioinfo[irq_ptr->irq]->senseid.ciw[ciw_cnt].cmd==0) &&
+ (ioinfo[irq_ptr->irq]->senseid.ciw[ciw_cnt].count) )
+ break;
+ }
+ if (found<2) {
+ QDIO_DBF_TEXT2(1,setup,"no ciws");
+ QDIO_PRINT_INFO("No CIWs found for QDIO commands. Trying to " \
+ "use defaults.\n");
+ }
+
+ /* the thinint CHSC stuff */
+ if (irq_ptr->is_thinint_irq) {
+/* iqdio_enable_adapter_int_facility(irq_ptr);*/
+
+ if (tiqdio_check_chsc_availability()) {
+ QDIO_PRINT_ERR("Not all CHSCs supported. " \
+ "Continuing.\n");
+ }
+ result=tiqdio_set_subchannel_ind(irq_ptr,0);
+ if (result) {
+ spin_unlock(&irq_ptr->setting_up_lock);
+ qdio_cleanup(irq_ptr->irq,
+ QDIO_FLAG_CLEANUP_USING_CLEAR);
+ goto out2;
+ }
+ tiqdio_set_delay_target(irq_ptr,TIQDIO_DELAY_TARGET);
+ }
+
+ /* establish q */
+ irq_ptr->ccw.cmd_code=irq_ptr->commands.eq;
+ irq_ptr->ccw.flags=CCW_FLAG_SLI;
+ irq_ptr->ccw.count=irq_ptr->commands.count_eq;
+ irq_ptr->ccw.cda=QDIO_GET_32BIT_ADDR(QDIO_PFIX_GET_ADDR(irq_ptr->qdr));
+
+ s390irq_spin_lock_irqsave(irq_ptr->irq,saveflags);
+ atomic_set(&irq_ptr->interrupt_has_arrived,0);
+
+ result=do_IO(irq_ptr->irq,&irq_ptr->ccw,QDIO_DOING_ESTABLISH,0,
+ ((irq_ptr->other_flags&QDIO_PFIX)?DOIO_USE_DIAG98:0));
+ if (result) {
+ result2=do_IO(irq_ptr->irq,&irq_ptr->ccw,
+ QDIO_DOING_ESTABLISH,0,
+ ((irq_ptr->other_flags&QDIO_PFIX)?
+ DOIO_USE_DIAG98:0));
+ sprintf(dbf_text,"eq:io%4x",result);
+ QDIO_DBF_TEXT2(1,setup,dbf_text);
+ if (result2) {
+ sprintf(dbf_text,"eq:io%4x",result);
+ QDIO_DBF_TEXT2(1,setup,dbf_text);
+ }
+ QDIO_PRINT_WARN("establish queues on irq %04x: do_IO " \
+ "returned %i, next try returned %i\n",
+ irq_ptr->irq,result,result2);
+ result=result2;
+ }
+
+ s390irq_spin_unlock_irqrestore(irq_ptr->irq,saveflags);
+
+ if (result) {
+ spin_unlock(&irq_ptr->setting_up_lock);
+ qdio_cleanup(irq_ptr->irq,QDIO_FLAG_CLEANUP_USING_CLEAR);
+ goto out2;
+ }
+
+ result=qdio_sleepon(&irq_ptr->interrupt_has_arrived,
+ QDIO_ESTABLISH_TIMEOUT,irq_ptr);
+
+ if (result) {
+ QDIO_PRINT_ERR("establish queues on irq %04x: timed out\n",
+ irq_ptr->irq);
+ QDIO_DBF_TEXT2(1,setup,"eq:timeo");
+ spin_unlock(&irq_ptr->setting_up_lock);
+ qdio_cleanup(irq_ptr->irq,QDIO_FLAG_CLEANUP_USING_CLEAR);
+ goto out2;
+ }
+
+ if (!(irq_ptr->io_result_dstat & DEV_STAT_DEV_END)) {
+ QDIO_DBF_TEXT2(1,setup,"eq:no de");
+ QDIO_DBF_HEX2(0,setup,&irq_ptr->io_result_dstat,
+ sizeof(irq_ptr->io_result_dstat));
+ QDIO_DBF_HEX2(0,setup,&irq_ptr->io_result_cstat,
+ sizeof(irq_ptr->io_result_cstat));
+ QDIO_DBF_HEX2(0,setup,&irq_ptr->io_result_flags,
+ sizeof(irq_ptr->io_result_flags));
+ QDIO_PRINT_ERR("establish queues on irq %04x: didn't get " \
+ "device end: dstat=%02x, cstat=%02x, " \
+ "flags=%02x\n",
+ irq_ptr->irq,irq_ptr->io_result_dstat,
+ irq_ptr->io_result_cstat,
+ irq_ptr->io_result_flags);
+ spin_unlock(&irq_ptr->setting_up_lock);
+ qdio_cleanup(irq_ptr->irq,QDIO_FLAG_CLEANUP_USING_CLEAR);
+ result=-EIO;
+ goto out2;
+ }
+
+ if (irq_ptr->io_result_dstat & ~(DEV_STAT_CHN_END|DEV_STAT_DEV_END)) {
+ QDIO_DBF_TEXT2(1,setup,"eq:badio");
+ QDIO_DBF_HEX2(0,setup,&irq_ptr->io_result_dstat,
+ sizeof(irq_ptr->io_result_dstat));
+ QDIO_DBF_HEX2(0,setup,&irq_ptr->io_result_cstat,
+ sizeof(irq_ptr->io_result_cstat));
+ QDIO_DBF_HEX2(0,setup,&irq_ptr->io_result_flags,
+ sizeof(irq_ptr->io_result_flags));
+ QDIO_PRINT_ERR("establish queues on irq %04x: got " \
+ "the following devstat: dstat=%02x, " \
+ "cstat=%02x, flags=%02x\n",
+ irq_ptr->irq,irq_ptr->io_result_dstat,
+ irq_ptr->io_result_cstat,
+ irq_ptr->io_result_flags);
+ result=-EIO;
+ goto out;
+ }
+
+ if (MACHINE_IS_VM)
+ irq_ptr->qdioac=qdio_check_siga_needs(irq_ptr->irq);
+ else {
+ irq_ptr->qdioac=CHSC_FLAG_SIGA_INPUT_NECESSARY
+ | CHSC_FLAG_SIGA_OUTPUT_NECESSARY;
+ }
+ sprintf(dbf_text,"qdioac%2x",irq_ptr->qdioac);
+ QDIO_DBF_TEXT2(0,setup,dbf_text);
+
+ sprintf(dbf_text,"qib ac%2x",irq_ptr->qib.ac);
+ QDIO_DBF_TEXT2(0,setup,dbf_text);
+
+ if (init_data->flags&QDIO_USE_OUTBOUND_PCIS) {
+ irq_ptr->hydra_gives_outbound_pcis=
+ irq_ptr->qib.ac&QIB_AC_OUTBOUND_PCI_SUPPORTED;
+ } else {
+ irq_ptr->hydra_gives_outbound_pcis=0;
+ }
+ irq_ptr->sync_done_on_outb_pcis=
+ irq_ptr->qdioac&CHSC_FLAG_SIGA_SYNC_DONE_ON_OUTB_PCIS;
+
+ for (i=0;i<init_data->no_input_qs;i++) {
+ irq_ptr->input_qs[i]->siga_sync=
+ irq_ptr->qdioac&CHSC_FLAG_SIGA_SYNC_NECESSARY;
+ irq_ptr->input_qs[i]->siga_in=
+ irq_ptr->qdioac&CHSC_FLAG_SIGA_INPUT_NECESSARY;
+ irq_ptr->input_qs[i]->siga_out=
+ irq_ptr->qdioac&CHSC_FLAG_SIGA_OUTPUT_NECESSARY;
+ irq_ptr->input_qs[i]->siga_sync_done_on_thinints=
+ irq_ptr->qdioac&CHSC_FLAG_SIGA_SYNC_DONE_ON_THININTS;
+ irq_ptr->input_qs[i]->hydra_gives_outbound_pcis=
+ irq_ptr->hydra_gives_outbound_pcis;
+ irq_ptr->input_qs[i]->siga_sync_done_on_outb_tis=
+ ( (irq_ptr->qdioac&
+ (CHSC_FLAG_SIGA_SYNC_DONE_ON_OUTB_PCIS|
+ CHSC_FLAG_SIGA_SYNC_DONE_ON_THININTS))==
+ (CHSC_FLAG_SIGA_SYNC_DONE_ON_OUTB_PCIS|
+ CHSC_FLAG_SIGA_SYNC_DONE_ON_THININTS) );
+ }
+
+ for (i=0;i<init_data->no_output_qs;i++) {
+ irq_ptr->output_qs[i]->siga_sync=
+ irq_ptr->qdioac&CHSC_FLAG_SIGA_SYNC_NECESSARY;
+ irq_ptr->output_qs[i]->siga_in=
+ irq_ptr->qdioac&CHSC_FLAG_SIGA_INPUT_NECESSARY;
+ irq_ptr->output_qs[i]->siga_out=
+ irq_ptr->qdioac&CHSC_FLAG_SIGA_OUTPUT_NECESSARY;
+ irq_ptr->output_qs[i]->siga_sync_done_on_thinints=
+ irq_ptr->qdioac&CHSC_FLAG_SIGA_SYNC_DONE_ON_THININTS;
+ irq_ptr->output_qs[i]->hydra_gives_outbound_pcis=
+ irq_ptr->hydra_gives_outbound_pcis;
+ irq_ptr->output_qs[i]->siga_sync_done_on_outb_tis=
+ ( (irq_ptr->qdioac&
+ (CHSC_FLAG_SIGA_SYNC_DONE_ON_OUTB_PCIS|
+ CHSC_FLAG_SIGA_SYNC_DONE_ON_THININTS))==
+ (CHSC_FLAG_SIGA_SYNC_DONE_ON_OUTB_PCIS|
+ CHSC_FLAG_SIGA_SYNC_DONE_ON_THININTS) );
+ }
+
+ if (init_data->qib_param_field)
+ memcpy(init_data->qib_param_field,irq_ptr->qib.parm,
+ QDIO_MAX_BUFFERS_PER_Q);
+
+ qdio_set_state(irq_ptr,QDIO_IRQ_STATE_ESTABLISHED);
+
+ out:
+ if (irq_ptr) {
+ spin_unlock(&irq_ptr->setting_up_lock);
+ }
+ out2:
+ up(&init_sema);
+
+ return result;
+}
+
+int qdio_activate(int irq,int flags)
+{
+ qdio_irq_t *irq_ptr;
+ int i,result=0,result2;
+ unsigned long saveflags;
+ char dbf_text[20]; /* see qdio_initialize */
+
+ irq_ptr=qdio_get_irq_ptr(irq);
+ if (!irq_ptr) return -ENODEV;
+
+ spin_lock(&irq_ptr->setting_up_lock);
+ if (irq_ptr->state==QDIO_IRQ_STATE_INACTIVE) {
+ result=-EBUSY;
+ goto out;
+ }
+
+ sprintf(dbf_text,"qact%4x",irq);
+ QDIO_DBF_TEXT2(0,setup,dbf_text);
+ QDIO_DBF_TEXT2(0,trace,dbf_text);
+
+ /* activate q */
+ irq_ptr->ccw.cmd_code=irq_ptr->commands.aq;
+ irq_ptr->ccw.flags=CCW_FLAG_SLI;
+ irq_ptr->ccw.count=irq_ptr->commands.count_aq;
+ irq_ptr->ccw.cda=QDIO_GET_32BIT_ADDR(0); /* no QDIO_PFIX_GET_ADDR here,
+ not needed */
+
+ s390irq_spin_lock_irqsave(irq_ptr->irq,saveflags);
+ atomic_set(&irq_ptr->interrupt_has_arrived,0);
+
+ result=do_IO(irq_ptr->irq,&irq_ptr->ccw,QDIO_DOING_ACTIVATE,
+ 0,DOIO_REPORT_ALL|DOIO_DENY_PREFETCH|
+ ((irq_ptr->other_flags&QDIO_PFIX)?DOIO_USE_DIAG98:0));
+ if (result) {
+ result2=do_IO(irq_ptr->irq,&irq_ptr->ccw,
+ QDIO_DOING_ACTIVATE,0,DOIO_REPORT_ALL|
+ ((irq_ptr->other_flags&QDIO_PFIX) ?
+ DOIO_USE_DIAG98:0));
+ sprintf(dbf_text,"aq:io%4x",result);
+ QDIO_DBF_TEXT2(1,setup,dbf_text);
+ if (result2) {
+ sprintf(dbf_text,"aq:io%4x",result);
+ QDIO_DBF_TEXT2(1,setup,dbf_text);
+ }
+ QDIO_PRINT_WARN("activate queues on irq %04x: do_IO " \
+ "returned %i, next try returned %i\n",
+ irq_ptr->irq,result,result2);
+ result=result2;
+ }
+
+ s390irq_spin_unlock_irqrestore(irq_ptr->irq,saveflags);
+ if (result) {
+ goto out;
+ }
+
+ if (!(flags&QDIO_FLAG_UNDER_INTERRUPT)) {
+ result=qdio_sleepon(&irq_ptr->interrupt_has_arrived,
+ QDIO_ACTIVATE_TIMEOUT,irq_ptr);
+
+ if (result!=-ETIME) {
+ QDIO_DBF_TEXT2(1,setup,"aq:badio");
+ QDIO_DBF_HEX2(0,setup,&irq_ptr->io_result_dstat,
+ sizeof(irq_ptr->io_result_dstat));
+ QDIO_DBF_HEX2(0,setup,&irq_ptr->io_result_cstat,
+ sizeof(irq_ptr->io_result_cstat));
+ QDIO_DBF_HEX2(0,setup,&irq_ptr->io_result_flags,
+ sizeof(irq_ptr->io_result_flags));
+ QDIO_PRINT_ERR("activate queues on irq %04x: got " \
+ "the following devstat: dstat=%02x, " \
+ "cstat=%02x, flags=%02x\n",
+ irq_ptr->irq,irq_ptr->io_result_dstat,
+ irq_ptr->io_result_cstat,
+ irq_ptr->io_result_flags);
+ result=-EIO;
+ goto out;
+ } else { /* result is -ETIME, but timeout is ok for us */
+ result=0;
+ }
+ } else result=0;
+
+ for (i=0;i<irq_ptr->no_input_qs;i++) {
+ if (irq_ptr->is_thinint_irq) {
+ /* that way we know, that, if we will
+ * get interrupted
+ * by tiqdio_inbound_processing,
+ * qdio_unmark_q will
+ * not be called */
+ qdio_reserve_q(irq_ptr->input_qs[i]);
+ qdio_mark_tiq(irq_ptr->input_qs[i]);
+ qdio_release_q(irq_ptr->input_qs[i]);
+ }
+ }
+
+ if (flags&QDIO_FLAG_NO_INPUT_INTERRUPT_CONTEXT) {
+ for (i=0;i<irq_ptr->no_input_qs;i++) {
+ irq_ptr->input_qs[i]->is_input_q|=
+ QDIO_FLAG_NO_INPUT_INTERRUPT_CONTEXT;
+ }
+ }
+
+ qdio_wait_nonbusy(QDIO_ACTIVATE_DELAY);
+
+ qdio_set_state(irq_ptr,QDIO_IRQ_STATE_ACTIVE);
+
+ out:
+ spin_unlock(&irq_ptr->setting_up_lock);
+
+ return result;
+}
+
+/* buffers filled forwards again to make Rick happy */
+static void qdio_do_qdio_fill_input(qdio_q_t *q,unsigned int qidx,
+ unsigned int count,qdio_buffer_t *buffers)
+{
+ for (;;) {
+ if (!q->is_0copy_sbals_q) {
+ memcpy((void*)q->sbal[qidx],buffers,SBAL_SIZE);
+ q->qdio_buffers[qidx]=buffers;
+ buffers++;
+ }
+ set_slsb(&q->slsb.acc.val[qidx],SLSB_CU_INPUT_EMPTY);
+ count--;
+ if (!count) break;
+ qidx=(qidx+1)&(QDIO_MAX_BUFFERS_PER_Q-1);
+ }
+
+ /* not necessary, as the queues are synced during the SIGA read
+ SYNC_MEMORY;*/
+}
+
+static inline void qdio_do_qdio_fill_output(qdio_q_t *q,unsigned int qidx,
+ unsigned int count,
+ qdio_buffer_t *buffers)
+{
+ for (;;) {
+ if (!q->is_0copy_sbals_q) {
+ memcpy((void*)q->sbal[qidx],buffers,SBAL_SIZE);
+ q->qdio_buffers[qidx]=buffers;
+ buffers++;
+ }
+ set_slsb(&q->slsb.acc.val[qidx],SLSB_CU_OUTPUT_PRIMED);
+ count--;
+ if (!count) break;
+ qidx=(qidx+1)&(QDIO_MAX_BUFFERS_PER_Q-1);
+ }
+
+ /* SIGA write will sync the queues
+ SYNC_MEMORY;*/
+}
+
+/* count must be 1 in iqdio */
+int do_QDIO(int irq,unsigned int callflags,unsigned int queue_number,
+ unsigned int qidx,unsigned int count,qdio_buffer_t *buffers)
+{
+ qdio_q_t *q;
+ qdio_irq_t *irq_ptr;
+ int result;
+ int used_elements;
+
+#ifdef QDIO_DBF_LIKE_HELL
+ char dbf_text[20];
+
+ sprintf(dbf_text,"doQD%04x",irq);
+ QDIO_DBF_TEXT3(0,trace,dbf_text);
+#endif /* QDIO_DBF_LIKE_HELL */
+
+ if ( (qidx>QDIO_MAX_BUFFERS_PER_Q) ||
+ (count>QDIO_MAX_BUFFERS_PER_Q) ||
+ (queue_number>QDIO_MAX_QUEUES_PER_IRQ) )
+ return -EINVAL;
+
+ if (count==0) return 0;
+
+ irq_ptr=qdio_get_irq_ptr(irq);
+ if (!irq_ptr) return -ENODEV;
+
+#ifdef QDIO_DBF_LIKE_HELL
+ if (callflags&QDIO_FLAG_SYNC_INPUT)
+ QDIO_DBF_HEX3(0,trace,&irq_ptr->input_qs[queue_number],
+ sizeof(void*));
+ else
+ QDIO_DBF_HEX3(0,trace,&irq_ptr->output_qs[queue_number],
+ sizeof(void*));
+ sprintf(dbf_text,"flag%04x",callflags);
+ QDIO_DBF_TEXT3(0,trace,dbf_text);
+ sprintf(dbf_text,"qi%02xct%02x",qidx,count);
+ QDIO_DBF_TEXT3(0,trace,dbf_text);
+ if ( ((callflags&QDIO_FLAG_SYNC_INPUT)&&
+ (!irq_ptr->input_qs[queue_number]->is_0copy_sbals_q)) ||
+ ((callflags&QDIO_FLAG_SYNC_OUTPUT)&&
+ (!irq_ptr->output_qs[queue_number]->is_0copy_sbals_q)) )
+ QDIO_DBF_HEX5(0,sbal,buffers,256);
+#endif /* QDIO_DBF_LIKE_HELL */
+
+ if (irq_ptr->state!=QDIO_IRQ_STATE_ACTIVE) {
+ return -EBUSY;
+ }
+
+ if (callflags&QDIO_FLAG_SYNC_INPUT) {
+ /* This is the inbound handling of queues */
+ q=irq_ptr->input_qs[queue_number];
+
+ used_elements=atomic_return_add(count,
+ &q->number_of_buffers_used);
+
+ qdio_do_qdio_fill_input(q,qidx,count,buffers);
+
+ if ((used_elements+count==QDIO_MAX_BUFFERS_PER_Q)&&
+ (callflags&QDIO_FLAG_UNDER_INTERRUPT))
+ atomic_swap(&q->polling,0);
+
+ if (!used_elements) if (!(callflags&QDIO_FLAG_DONT_SIGA)) {
+ if (q->siga_in) {
+ result=qdio_siga_input(q);
+ if (result) {
+ if (q->siga_error)
+ q->error_status_flags|=
+ QDIO_STATUS_MORE_THAN_ONE_SIGA_ERROR;
+ q->error_status_flags|=
+ QDIO_STATUS_LOOK_FOR_ERROR;
+ q->siga_error=result;
+ }
+ }
+
+ qdio_mark_q(q);
+ }
+ } else if (callflags&QDIO_FLAG_SYNC_OUTPUT) {
+ /* This is the outbound handling of queues */
+#ifdef QDIO_PERFORMANCE_STATS
+ perf_stats.start_time_outbound=NOW;
+#endif /* QDIO_PERFORMANCE_STATS */
+ q=irq_ptr->output_qs[queue_number];
+
+ qdio_do_qdio_fill_output(q,qidx,count,buffers);
+
+ used_elements=atomic_return_add(count,
+ &q->number_of_buffers_used);
+
+ if (!(callflags&QDIO_FLAG_DONT_SIGA)) {
+ if (q->is_iqdio_q) {
+ /* one siga for every sbal */
+ while (count--) {
+ qdio_kick_outbound_q(q);
+ }
+
+ qdio_outbound_processing(q);
+ } else {
+ /* under VM, we do a SIGA sync
+ * unconditionally */
+ SYNC_MEMORY;
+ else {
+ /* w/o shadow queues (else branch of
+ * SYNC_MEMORY :-/ ), we try to
+ * fast-requeue buffers */
+ if (q->slsb.acc.val
+ [(qidx+QDIO_MAX_BUFFERS_PER_Q-1)
+ &(QDIO_MAX_BUFFERS_PER_Q-1)]!=
+ SLSB_CU_OUTPUT_PRIMED) {
+ qdio_kick_outbound_q(q);
+ } else {
+#ifdef QDIO_DBF_LIKE_HELL
+ QDIO_DBF_TEXT3(0,trace,
+ "fast-req");
+#endif /* QDIO_DBF_LIKE_HELL */
+#ifdef QDIO_PERFORMANCE_STATS
+ perf_stats.fast_reqs++;
+#endif /* QDIO_PERFORMANCE_STATS */
+ }
+ }
+ /* only marking the q could take
+ * too long, the upper layer
+ * module could do a lot of
+ * traffic in that time */
+ qdio_outbound_processing(q);
+ }
+ }
+
+#ifdef QDIO_PERFORMANCE_STATS
+ perf_stats.outbound_time+=NOW-perf_stats.start_time_outbound;
+ perf_stats.outbound_cnt++;
+#endif /* QDIO_PERFORMANCE_STATS */
+ } else {
+ QDIO_DBF_TEXT3(1,trace,"doQD:inv");
+ return -EINVAL;
+ }
+ return 0;
+}
+
+#ifdef QDIO_PERFORMANCE_STATS
+static int qdio_perf_procfile_read(char *buffer,char **buffer_location,
+ off_t offset,int buffer_length,int *eof,
+ void *data)
+{
+ int c=0,bucket;
+ qdio_irq_t *irq_ptr;
+
+ /* we are always called with buffer_length=4k, so we all
+ deliver on the first read */
+ if (offset>0) return 0;
+
+#define _OUTP_IT(x...) c+=sprintf(buffer+c,x)
+ _OUTP_IT("i_p_nc/c=%lu/%lu\n",i_p_nc,i_p_c);
+ _OUTP_IT("ii_p_nc/c=%lu/%lu\n",ii_p_nc,ii_p_c);
+ _OUTP_IT("o_p_nc/c=%lu/%lu\n",o_p_nc,o_p_c);
+ _OUTP_IT("Number of tasklet runs (total) : %u\n",
+ perf_stats.tl_runs);
+ _OUTP_IT("\n");
+ _OUTP_IT("Number of SIGA sync's issued : %u\n",
+ perf_stats.siga_syncs);
+ _OUTP_IT("Number of SIGA in's issued : %u\n",
+ perf_stats.siga_ins);
+ _OUTP_IT("Number of SIGA out's issued : %u\n",
+ perf_stats.siga_outs);
+ _OUTP_IT("Number of PCI's caught : %u\n",
+ perf_stats.pcis);
+ _OUTP_IT("Number of adapter interrupts caught : %u\n",
+ perf_stats.thinints);
+ _OUTP_IT("Number of fast requeues (outg. SBALs w/o SIGA) : %u\n",
+ perf_stats.fast_reqs);
+ _OUTP_IT("\n");
+ _OUTP_IT("Total time of all inbound actions (us) incl. UL : %u\n",
+ perf_stats.inbound_time);
+ _OUTP_IT("Number of inbound transfers : %u\n",
+ perf_stats.inbound_cnt);
+ _OUTP_IT("Total time of all outbound do_QDIOs (us) : %u\n",
+ perf_stats.outbound_time);
+ _OUTP_IT("Number of do_QDIOs outbound : %u\n",
+ perf_stats.outbound_cnt);
+ _OUTP_IT("\n");
+
+ for (bucket=0;bucket<QDIO_IRQ_BUCKETS;bucket++) {
+ irq_ptr=first_irq[bucket];
+
+ while (irq_ptr) {
+ _OUTP_IT("Polling time on irq %4x" \
+ " : %u\n",
+ irq_ptr->irq,irq_ptr->input_qs[0]->
+ timing.threshold);
+ irq_ptr=irq_ptr->next;
+ }
+ }
+
+ return c;
+}
+
+static struct proc_dir_entry *qdio_perf_proc_file;
+#endif /* QDIO_PERFORMANCE_STATS */
+
+static void qdio_add_procfs_entry(void)
+{
+#ifdef QDIO_PERFORMANCE_STATS
+ proc_perf_file_registration=0;
+ qdio_perf_proc_file=create_proc_entry(QDIO_PERF,
+ S_IFREG|0444,&proc_root);
+ if (qdio_perf_proc_file) {
+ qdio_perf_proc_file->read_proc=&qdio_perf_procfile_read;
+ } else proc_perf_file_registration=-1;
+
+ if (proc_perf_file_registration)
+ QDIO_PRINT_WARN("was not able to register perf. " \
+ "proc-file (%i).\n",
+ proc_perf_file_registration);
+#endif /* QDIO_PERFORMANCE_STATS */
+}
+#ifdef MODULE
+static void qdio_remove_procfs_entry(void)
+{
+#ifdef QDIO_PERFORMANCE_STATS
+ perf_stats.tl_runs=0;
+
+ if (!proc_perf_file_registration) /* means if it went ok earlier */
+ remove_proc_entry(QDIO_PERF,&proc_root);
+#endif /* QDIO_PERFORMANCE_STATS */
+}
+#endif /* MODULE */
+
+static void tiqdio_register_thinints(void)
+{
+ char dbf_text[20];
+ register_thinint_result=
+ s390_register_adapter_interrupt(&tiqdio_thinint_handler);
+ if (register_thinint_result) {
+ sprintf(dbf_text,"regthn%x",(register_thinint_result&0xff));
+ QDIO_DBF_TEXT0(0,setup,dbf_text);
+ QDIO_PRINT_ERR("failed to register adapter handler " \
+ "(rc=%i).\nAdapter interrupts might " \
+ "not work. Continuing.\n",
+ register_thinint_result);
+ }
+}
+
+#ifdef MODULE
+static void tiqdio_unregister_thinints(void)
+{
+ if (!register_thinint_result)
+ s390_unregister_adapter_interrupt(&tiqdio_thinint_handler);
+}
+#endif /* MODULE */
+
+static int qdio_get_qdio_memory(void)
+{
+ int i;
+ indicator_used[0]=1;
+
+ for (i=1;i<INDICATORS_PER_CACHELINE;i++)
+ indicator_used[i]=0;
+ indicators=(__u32*)kmalloc(sizeof(__u32)*(INDICATORS_PER_CACHELINE),
+ GFP_KERNEL);
+ if (!indicators) return -ENOMEM;
+ memset(indicators,0,sizeof(__u32)*(INDICATORS_PER_CACHELINE));
+
+ chsc_area=(qdio_chsc_area_t *)
+ kmalloc(sizeof(qdio_chsc_area_t),GFP_KERNEL);
+ QDIO_DBF_TEXT3(0,trace,"chscarea"); \
+ QDIO_DBF_HEX3(0,trace,&chsc_area,sizeof(void*)); \
+ if (!chsc_area) {
+ /* ahem... let's call it data area */
+ QDIO_PRINT_ERR("not enough memory for data area. Cannot " \
+ "initialize QDIO.\n");
+ kfree(indicators);
+ return -ENOMEM;
+ }
+ memset(chsc_area,0,sizeof(qdio_chsc_area_t));
+ return 0;
+}
+
+#ifdef MODULE
+static void qdio_release_qdio_memory(void)
+{
+ kfree(chsc_area);
+ if (indicators) kfree(indicators);
+}
+#endif /* MODULE */
+
+int init_module(void); /* we want to use it in init_QDIO */
+
+static void qdio_unregister_dbf_views(void)
+{
+ if (qdio_dbf_setup)
+ debug_unregister(qdio_dbf_setup);
+ if (qdio_dbf_sbal)
+ debug_unregister(qdio_dbf_sbal);
+ if (qdio_dbf_sense)
+ debug_unregister(qdio_dbf_sense);
+ if (qdio_dbf_trace)
+ debug_unregister(qdio_dbf_trace);
+#ifdef QDIO_DBF_LIKE_HELL
+ if (qdio_dbf_slsb_out)
+ debug_unregister(qdio_dbf_slsb_out);
+ if (qdio_dbf_slsb_in)
+ debug_unregister(qdio_dbf_slsb_in);
+#endif /* QDIO_DBF_LIKE_HELL */
+}
+
+/* this is not __initfunc, as it is called from init_module */
+int init_QDIO(void)
+{
+ char dbf_text[20];
+ int res;
+#if defined(MODULE)||defined(QDIO_PERFORMANCE_STATS)
+ void *ptr;
+#endif /* defined(MODULE)||defined(QDIO_PERFORMANCE_STATS) */
+
+ qdio_eyecatcher();
+
+ printk("qdio: loading %s\n",version);
+
+ res=qdio_get_qdio_memory();
+ if (res) return res;
+
+ sema_init(&init_sema,1);
+
+ qdio_dbf_setup=debug_register(QDIO_DBF_SETUP_NAME,
+ QDIO_DBF_SETUP_INDEX,
+ QDIO_DBF_SETUP_NR_AREAS,
+ QDIO_DBF_SETUP_LEN);
+ if (!qdio_dbf_setup) goto oom;
+ debug_register_view(qdio_dbf_setup,&debug_hex_ascii_view);
+ debug_set_level(qdio_dbf_setup,QDIO_DBF_SETUP_LEVEL);
+
+ qdio_dbf_sbal=debug_register(QDIO_DBF_SBAL_NAME,
+ QDIO_DBF_SBAL_INDEX,
+ QDIO_DBF_SBAL_NR_AREAS,
+ QDIO_DBF_SBAL_LEN);
+ if (!qdio_dbf_sbal) goto oom;
+
+ debug_register_view(qdio_dbf_sbal,&debug_hex_ascii_view);
+ debug_set_level(qdio_dbf_sbal,QDIO_DBF_SBAL_LEVEL);
+
+ qdio_dbf_sense=debug_register(QDIO_DBF_SENSE_NAME,
+ QDIO_DBF_SENSE_INDEX,
+ QDIO_DBF_SENSE_NR_AREAS,
+ QDIO_DBF_SENSE_LEN);
+ if (!qdio_dbf_sense) goto oom;
+
+ debug_register_view(qdio_dbf_sense,&debug_hex_ascii_view);
+ debug_set_level(qdio_dbf_sense,QDIO_DBF_SENSE_LEVEL);
+
+ qdio_dbf_trace=debug_register(QDIO_DBF_TRACE_NAME,
+ QDIO_DBF_TRACE_INDEX,
+ QDIO_DBF_TRACE_NR_AREAS,
+ QDIO_DBF_TRACE_LEN);
+ if (!qdio_dbf_trace) goto oom;
+
+ debug_register_view(qdio_dbf_trace,&debug_hex_ascii_view);
+ debug_set_level(qdio_dbf_trace,QDIO_DBF_TRACE_LEVEL);
+
+#ifdef QDIO_DBF_LIKE_HELL
+ qdio_dbf_slsb_out=debug_register(QDIO_DBF_SLSB_OUT_NAME,
+ QDIO_DBF_SLSB_OUT_INDEX,
+ QDIO_DBF_SLSB_OUT_NR_AREAS,
+ QDIO_DBF_SLSB_OUT_LEN);
+ if (!qdio_dbf_slsb_out) goto oom;
+ debug_register_view(qdio_dbf_slsb_out,&debug_hex_ascii_view);
+ debug_set_level(qdio_dbf_slsb_out,QDIO_DBF_SLSB_OUT_LEVEL);
+
+ qdio_dbf_slsb_in=debug_register(QDIO_DBF_SLSB_IN_NAME,
+ QDIO_DBF_SLSB_IN_INDEX,
+ QDIO_DBF_SLSB_IN_NR_AREAS,
+ QDIO_DBF_SLSB_IN_LEN);
+ if (!qdio_dbf_slsb_in) goto oom;
+ debug_register_view(qdio_dbf_slsb_in,&debug_hex_ascii_view);
+ debug_set_level(qdio_dbf_slsb_in,QDIO_DBF_SLSB_IN_LEVEL);
+#endif /* QDIO_DBF_LIKE_HELL */
+
+#ifdef QDIO_PERFORMANCE_STATS
+ memset((void*)&perf_stats,0,sizeof(perf_stats));
+ QDIO_DBF_TEXT0(0,setup,"perfstat");
+ ptr=&perf_stats;
+ QDIO_DBF_HEX0(0,setup,&ptr,sizeof(void*));
+#endif /* QDIO_PERFORMANCE_STATS */
+
+#ifdef MODULE
+ QDIO_DBF_TEXT0(0,setup,"initmodl");
+ ptr=&init_module;
+ QDIO_DBF_HEX0(0,setup,&ptr,sizeof(void*));
+#endif /* MODULE */
+
+ qdio_add_procfs_entry();
+
+ hydra_thinints=qdio_check_for_hydra_thinints();
+
+ sprintf(dbf_text,"hydrati%1x",hydra_thinints);
+ QDIO_DBF_TEXT0(0,setup,dbf_text);
+
+ tiqdio_register_thinints();
+
+ return 0;
+ oom:
+ QDIO_PRINT_ERR("not enough memory for dbf.\n");
+ qdio_unregister_dbf_views();
+ return -ENOMEM;
+}
+
+#ifdef MODULE
+int init_module(void)
+{
+ return init_QDIO();
+}
+
+void cleanup_module(void)
+{
+ tiqdio_unregister_thinints();
+
+ qdio_remove_procfs_entry();
+
+ qdio_release_qdio_memory();
+
+ qdio_unregister_dbf_views();
+
+ printk("qdio: %s: module removed\n",version);
+}
+#else /* MODULE */
+static int __init initcall_QDIO(void)
+{
+ return init_QDIO();
+}
+__initcall(initcall_QDIO);
+#endif /* MODULE */
+
+EXPORT_SYMBOL(qdio_initialize);
+EXPORT_SYMBOL(qdio_activate);
+EXPORT_SYMBOL(do_QDIO);
+EXPORT_SYMBOL(qdio_cleanup);
+EXPORT_SYMBOL(qdio_eyecatcher);
+EXPORT_SYMBOL(qdio_synchronize);
+
FUNET's LINUX-ADM group, linux-adm@nic.funet.fi
TCL-scripts by Sam Shen (who was at: slshen@lbl.gov)