#include "ioasm.h"
#include "chsc.h"
-#define VERSION_QDIO_C "$Revision: 1.108 $"
+#define VERSION_QDIO_C "$Revision: 1.113 $"
/****************** MODULE PARAMETER VARIABLES ********************/
MODULE_AUTHOR("Utz Bacher <utz.bacher@de.ibm.com>");
#endif /* QDIO_PERFORMANCE_STATS */
static int hydra_thinints;
+static int is_passthrough = 0;
static int omit_svs;
static int indicator_used[INDICATORS_PER_CACHELINE];
atomic_dec(&q->use_count);
}
-static volatile inline void
-qdio_set_slsb(volatile char *slsb, unsigned char value)
+/*check ccq */
+static inline int
+qdio_check_ccq(struct qdio_q *q, unsigned int ccq)
{
- xchg((char*)slsb,value);
+ char dbf_text[15];
+
+ if (ccq == 0 || ccq == 32 || ccq == 96)
+ return 0;
+ if (ccq == 97)
+ return 1;
+ /*notify devices immediately*/
+ sprintf(dbf_text,"%d", ccq);
+ QDIO_DBF_TEXT2(1,trace,dbf_text);
+ return -EIO;
}
+/* EQBS: extract buffer states */
+static inline int
+qdio_do_eqbs(struct qdio_q *q, unsigned char *state,
+ unsigned int *start, unsigned int *cnt)
+{
+ struct qdio_irq *irq;
+ unsigned int tmp_cnt, q_no, ccq;
+ int rc ;
+ char dbf_text[15];
+ ccq = 0;
+ tmp_cnt = *cnt;
+ irq = (struct qdio_irq*)q->irq_ptr;
+ q_no = q->q_no;
+ if(!q->is_input_q)
+ q_no += irq->no_input_qs;
+ ccq = do_eqbs(irq->sch_token, state, q_no, start, cnt);
+ rc = qdio_check_ccq(q, ccq);
+ if (rc < 0) {
+ QDIO_DBF_TEXT2(1,trace,"eqberr");
+ sprintf(dbf_text,"%2x,%2x,%d,%d",tmp_cnt, *cnt, ccq, q_no);
+ QDIO_DBF_TEXT2(1,trace,dbf_text);
+ q->handler(q->cdev,QDIO_STATUS_ACTIVATE_CHECK_CONDITION|
+ QDIO_STATUS_LOOK_FOR_ERROR,
+ 0, 0, 0, -1, -1, q->int_parm);
+ return 0;
+ }
+ return (tmp_cnt - *cnt);
+}
+
+/* SQBS: set buffer states */
+static inline int
+qdio_do_sqbs(struct qdio_q *q, unsigned char state,
+ unsigned int *start, unsigned int *cnt)
+{
+ struct qdio_irq *irq;
+ unsigned int tmp_cnt, q_no, ccq;
+ int rc;
+ char dbf_text[15];
+
+ ccq = 0;
+ tmp_cnt = *cnt;
+ irq = (struct qdio_irq*)q->irq_ptr;
+ q_no = q->q_no;
+ if(!q->is_input_q)
+ q_no += irq->no_input_qs;
+ ccq = do_sqbs(irq->sch_token, state, q_no, start, cnt);
+ rc = qdio_check_ccq(q, ccq);
+ if (rc < 0) {
+ QDIO_DBF_TEXT3(1,trace,"sqberr");
+ sprintf(dbf_text,"%2x,%2x,%d,%d",tmp_cnt,*cnt,ccq,q_no);
+ QDIO_DBF_TEXT3(1,trace,dbf_text);
+ q->handler(q->cdev,QDIO_STATUS_ACTIVATE_CHECK_CONDITION|
+ QDIO_STATUS_LOOK_FOR_ERROR,
+ 0, 0, 0, -1, -1, q->int_parm);
+ return 0;
+ }
+ return (tmp_cnt - *cnt);
+}
+
+static inline int
+qdio_set_slsb(struct qdio_q *q, unsigned int *bufno,
+ unsigned char state, unsigned int *count)
+{
+ volatile char *slsb;
+ struct qdio_irq *irq;
+
+ irq = (struct qdio_irq*)q->irq_ptr;
+ if (!irq->is_qebsm) {
+ slsb = (char *)&q->slsb.acc.val[(*bufno)];
+ xchg(slsb, state);
+ return 1;
+ }
+ return qdio_do_sqbs(q, state, bufno, count);
+}
+
+#ifdef CONFIG_QDIO_DEBUG
+static inline void
+qdio_trace_slsb(struct qdio_q *q)
+{
+ 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);
+ }
+}
+#endif
+
+static inline int
+set_slsb(struct qdio_q *q, unsigned int *bufno,
+ unsigned char state, unsigned int *count)
+{
+ int rc;
+#ifdef CONFIG_QDIO_DEBUG
+ qdio_trace_slsb(q);
+#endif
+ rc = qdio_set_slsb(q, bufno, state, count);
+#ifdef CONFIG_QDIO_DEBUG
+ qdio_trace_slsb(q);
+#endif
+ return rc;
+}
static inline int
qdio_siga_sync(struct qdio_q *q, unsigned int gpr2,
unsigned int gpr3)
perf_stats.siga_syncs++;
#endif /* QDIO_PERFORMANCE_STATS */
- cc = do_siga_sync(q->irq, gpr2, gpr3);
+ cc = do_siga_sync(0x10000|q->irq, gpr2, gpr3);
if (cc)
QDIO_DBF_HEX3(0,trace,&cc,sizeof(int*));
return qdio_siga_sync(q, q->mask, 0);
}
+static int
+__do_siga_output(struct qdio_q *q, unsigned int *busy_bit)
+{
+ struct qdio_irq *irq;
+ unsigned int fc = 0;
+
+ irq = (struct qdio_irq *) q->irq_ptr;
+ if (!irq->is_qebsm)
+ return do_siga_output(0x10000|q->irq, q->mask, busy_bit, fc);
+ fc |= 0x80;
+ return do_siga_output(irq->sch_token, q->mask, busy_bit, fc);
+}
+
/*
* returns QDIO_SIGA_ERROR_ACCESS_EXCEPTION as cc, when SIGA returns
* an access exception
QDIO_DBF_HEX4(0,trace,&q,sizeof(void*));
for (;;) {
- cc = do_siga_output(q->irq, q->mask, &busy_bit);
+ cc = __do_siga_output(q, &busy_bit);
//QDIO_PRINT_ERR("cc=%x, busy=%x\n",cc,busy_bit);
if ((cc==2) && (busy_bit) && (q->is_iqdio_q)) {
if (!start_time)
perf_stats.siga_ins++;
#endif /* QDIO_PERFORMANCE_STATS */
- cc = do_siga_input(q->irq, q->mask);
+ cc = do_siga_input(0x10000|q->irq, q->mask);
if (cc)
QDIO_DBF_HEX3(0,trace,&cc,sizeof(int*));
}
/* locked by the locks in qdio_activate and qdio_cleanup */
-static __u32 volatile *
+static __u32 *
qdio_get_indicator(void)
{
int i;
atomic_dec(&spare_indicator_usecount);
}
-static inline volatile void
+static inline void
tiqdio_clear_summary_bit(__u32 *location)
{
QDIO_DBF_TEXT5(0,trace,"clrsummb");
xchg(location,0);
}
-static inline volatile void
+static inline void
tiqdio_set_summary_bit(__u32 *location)
{
QDIO_DBF_TEXT5(0,trace,"setsummb");
qdio_stop_polling(struct qdio_q *q)
{
#ifdef QDIO_USE_PROCESSING_STATE
- int gsf;
+ unsigned int tmp, gsf, count = 1;
+ unsigned char state = 0;
+ struct qdio_irq *irq = (struct qdio_irq *) q->irq_ptr;
if (!atomic_swap(&q->polling,0))
return 1;
if (!q->is_input_q)
return 1;
- 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);
+ tmp = gsf = GET_SAVED_FRONTIER(q);
+ tmp = ((tmp + QDIO_MAX_BUFFERS_PER_Q-1) & (QDIO_MAX_BUFFERS_PER_Q-1) );
+ set_slsb(q, &tmp, SLSB_P_INPUT_NOT_INIT, &count);
+
/*
* we don't issue this SYNC_MEMORY, as we trust Rick T and
* moreover will not use the PROCESSING state under VM, so
* q->polling was 0 anyway
*/
/*SYNC_MEMORY;*/
- if (q->slsb.acc.val[gsf]!=SLSB_P_INPUT_PRIMED)
+ if (irq->is_qebsm) {
+ count = 1;
+ qdio_do_eqbs(q, &state, &gsf, &count);
+ } else
+ state = q->slsb.acc.val[gsf];
+ if (state != SLSB_P_INPUT_PRIMED)
return 1;
/*
* set our summary bit again, as otherwise there is a
/************************* OUTBOUND ROUTINES *******************************/
+static int
+qdio_qebsm_get_outbound_buffer_frontier(struct qdio_q *q)
+{
+ struct qdio_irq *irq;
+ unsigned char state;
+ unsigned int cnt, count, ftc;
+
+ irq = (struct qdio_irq *) q->irq_ptr;
+ if ((!q->is_iqdio_q) && (!q->hydra_gives_outbound_pcis))
+ SYNC_MEMORY;
+
+ ftc = q->first_to_check;
+ count = qdio_min(atomic_read(&q->number_of_buffers_used),
+ (QDIO_MAX_BUFFERS_PER_Q-1));
+ if (count == 0)
+ return q->first_to_check;
+ cnt = qdio_do_eqbs(q, &state, &ftc, &count);
+ if (cnt == 0)
+ return q->first_to_check;
+ switch (state) {
+ case SLSB_P_OUTPUT_ERROR:
+ QDIO_DBF_TEXT3(0,trace,"outperr");
+ atomic_sub(cnt , &q->number_of_buffers_used);
+ 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;
+ q->first_to_check = ftc;
+ break;
+ case SLSB_P_OUTPUT_EMPTY:
+ QDIO_DBF_TEXT5(0,trace,"outpempt");
+ atomic_sub(cnt, &q->number_of_buffers_used);
+ q->first_to_check = ftc;
+ break;
+ case SLSB_CU_OUTPUT_PRIMED:
+ /* all buffers primed */
+ QDIO_DBF_TEXT5(0,trace,"outpprim");
+ break;
+ default:
+ break;
+ }
+ QDIO_DBF_HEX4(0,trace,&q->first_to_check,sizeof(int));
+ return q->first_to_check;
+}
+
+static int
+qdio_qebsm_get_inbound_buffer_frontier(struct qdio_q *q)
+{
+ struct qdio_irq *irq;
+ unsigned char state;
+ int tmp, ftc, count, cnt;
+ char dbf_text[15];
+
+
+ irq = (struct qdio_irq *) q->irq_ptr;
+ ftc = q->first_to_check;
+ count = qdio_min(atomic_read(&q->number_of_buffers_used),
+ (QDIO_MAX_BUFFERS_PER_Q-1));
+ if (count == 0)
+ return q->first_to_check;
+ cnt = qdio_do_eqbs(q, &state, &ftc, &count);
+ if (cnt == 0)
+ return q->first_to_check;
+ switch (state) {
+ case SLSB_P_INPUT_ERROR :
+#ifdef CONFIG_QDIO_DEBUG
+ QDIO_DBF_TEXT3(1,trace,"inperr");
+ sprintf(dbf_text,"%2x,%2x",ftc,count);
+ QDIO_DBF_TEXT3(1,trace,dbf_text);
+#endif /* CONFIG_QDIO_DEBUG */
+ 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;
+ atomic_sub(cnt, &q->number_of_buffers_used);
+ q->first_to_check = ftc;
+ break;
+ case SLSB_P_INPUT_PRIMED :
+ QDIO_DBF_TEXT3(0,trace,"inptprim");
+ sprintf(dbf_text,"%2x,%2x",ftc,count);
+ QDIO_DBF_TEXT3(1,trace,dbf_text);
+ tmp = 0;
+ ftc = q->first_to_check;
+#ifdef QDIO_USE_PROCESSING_STATE
+ if (cnt > 1) {
+ cnt -= 1;
+ tmp = set_slsb(q, &ftc, SLSB_P_INPUT_NOT_INIT, &cnt);
+ if (!tmp)
+ break;
+ }
+ cnt = 1;
+ tmp += set_slsb(q, &ftc,
+ SLSB_P_INPUT_PROCESSING, &cnt);
+ atomic_set(&q->polling, 1);
+#else
+ tmp = set_slsb(q, &ftc, SLSB_P_INPUT_NOT_INIT, &cnt);
+#endif
+ atomic_sub(tmp, &q->number_of_buffers_used);
+ q->first_to_check = ftc;
+ break;
+ case SLSB_CU_INPUT_EMPTY:
+ case SLSB_P_INPUT_NOT_INIT:
+ case SLSB_P_INPUT_PROCESSING:
+ QDIO_DBF_TEXT5(0,trace,"inpnipro");
+ break;
+ default:
+ break;
+ }
+ QDIO_DBF_HEX4(0,trace,&q->first_to_check,sizeof(int));
+ return q->first_to_check;
+}
static inline int
qdio_get_outbound_buffer_frontier(struct qdio_q *q)
{
- int f,f_mod_no;
- volatile char *slsb;
- int first_not_to_check;
+ struct qdio_irq *irq;
+ volatile char *slsb;
+ unsigned int count = 1;
+ int first_not_to_check, f, f_mod_no;
char dbf_text[15];
QDIO_DBF_TEXT4(0,trace,"getobfro");
QDIO_DBF_HEX4(0,trace,&q,sizeof(void*));
+ irq = (struct qdio_irq *) q->irq_ptr;
+ if (irq->is_qebsm)
+ return qdio_qebsm_get_outbound_buffer_frontier(q);
+
slsb=&q->slsb.acc.val[0];
f_mod_no=f=q->first_to_check;
/*
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);
+ set_slsb(q, &f_mod_no, SLSB_P_OUTPUT_NOT_INIT, &count);
/*
* we increment the frontier, as this buffer
result=qdio_siga_output(q);
- switch (result) {
- case 0:
- /* went smooth this time, reset timestamp */
+ switch (result) {
+ case 0:
+ /* went smooth this time, reset timestamp */
#ifdef CONFIG_QDIO_DEBUG
- QDIO_DBF_TEXT3(0,trace,"cc2reslv");
- sprintf(dbf_text,"%4x%2x%2x",q->irq,q->q_no,
- atomic_read(&q->busy_siga_counter));
- QDIO_DBF_TEXT3(0,trace,dbf_text);
+ QDIO_DBF_TEXT3(0,trace,"cc2reslv");
+ sprintf(dbf_text,"%4x%2x%2x",q->irq,q->q_no,
+ atomic_read(&q->busy_siga_counter));
+ QDIO_DBF_TEXT3(0,trace,dbf_text);
#endif /* CONFIG_QDIO_DEBUG */
- q->timing.busy_start=0;
+ q->timing.busy_start=0;
+ break;
+ case (2|QDIO_SIGA_ERROR_B_BIT_SET):
+ /* cc=2 and busy bit: */
+ atomic_inc(&q->busy_siga_counter);
+
+ /* if the last siga was successful, save
+ * timestamp here */
+ if (!q->timing.busy_start)
+ q->timing.busy_start=NOW;
+
+ /* if we're in time, don't touch error_status_flags
+ * and siga_error */
+ if (NOW-q->timing.busy_start<QDIO_BUSY_BIT_GIVE_UP) {
+ qdio_mark_q(q);
break;
- case (2|QDIO_SIGA_ERROR_B_BIT_SET):
- /* cc=2 and busy bit: */
- atomic_inc(&q->busy_siga_counter);
-
- /* if the last siga was successful, save
- * timestamp here */
- if (!q->timing.busy_start)
- q->timing.busy_start=NOW;
-
- /* if we're in time, don't touch error_status_flags
- * and siga_error */
- if (NOW-q->timing.busy_start<QDIO_BUSY_BIT_GIVE_UP) {
- qdio_mark_q(q);
- break;
- }
- QDIO_DBF_TEXT2(0,trace,"cc2REPRT");
+ }
+ QDIO_DBF_TEXT2(0,trace,"cc2REPRT");
#ifdef CONFIG_QDIO_DEBUG
- sprintf(dbf_text,"%4x%2x%2x",q->irq,q->q_no,
- atomic_read(&q->busy_siga_counter));
- QDIO_DBF_TEXT3(0,trace,dbf_text);
+ sprintf(dbf_text,"%4x%2x%2x",q->irq,q->q_no,
+ atomic_read(&q->busy_siga_counter));
+ QDIO_DBF_TEXT3(0,trace,dbf_text);
#endif /* CONFIG_QDIO_DEBUG */
- /* else fallthrough and report error */
- default:
- /* for plain cc=1, 2 or 3: */
- if (q->siga_error)
- q->error_status_flags|=
- QDIO_STATUS_MORE_THAN_ONE_SIGA_ERROR;
+ /* else fallthrough and report error */
+ default:
+ /* for plain cc=1, 2 or 3: */
+ if (q->siga_error)
q->error_status_flags|=
- QDIO_STATUS_LOOK_FOR_ERROR;
- q->siga_error=result;
- }
+ QDIO_STATUS_MORE_THAN_ONE_SIGA_ERROR;
+ q->error_status_flags|=
+ QDIO_STATUS_LOOK_FOR_ERROR;
+ q->siga_error=result;
+ }
}
static inline void
static inline int
qdio_get_inbound_buffer_frontier(struct qdio_q *q)
{
+ struct qdio_irq *irq;
int f,f_mod_no;
volatile char *slsb;
+ unsigned int count = 1;
int first_not_to_check;
#ifdef CONFIG_QDIO_DEBUG
char dbf_text[15];
QDIO_DBF_TEXT4(0,trace,"getibfro");
QDIO_DBF_HEX4(0,trace,&q,sizeof(void*));
+ irq = (struct qdio_irq *) q->irq_ptr;
+ if (irq->is_qebsm)
+ return qdio_qebsm_get_inbound_buffer_frontier(q);
+
slsb=&q->slsb.acc.val[0];
f_mod_no=f=q->first_to_check;
/*
* kill VM in terms of CP overhead
*/
if (q->siga_sync) {
- set_slsb(&slsb[f_mod_no],SLSB_P_INPUT_NOT_INIT);
+ set_slsb(q, &f_mod_no, SLSB_P_INPUT_NOT_INIT, &count);
} else {
/* set the previous buffer to NOT_INIT. The current
* buffer will be set to PROCESSING at the end of
* this function to avoid further interrupts. */
if (last_position>=0)
- set_slsb(&slsb[last_position],
- SLSB_P_INPUT_NOT_INIT);
+ set_slsb(q, &last_position,
+ SLSB_P_INPUT_NOT_INIT, &count);
atomic_set(&q->polling,1);
last_position=f_mod_no;
}
#else /* QDIO_USE_PROCESSING_STATE */
- set_slsb(&slsb[f_mod_no],SLSB_P_INPUT_NOT_INIT);
+ set_slsb(q, &f_mod_no, SLSB_P_INPUT_NOT_INIT, &count);
#endif /* QDIO_USE_PROCESSING_STATE */
/*
* not needed, as the inbound queue will be synced on the next
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);
+ set_slsb(q, &f_mod_no, SLSB_P_INPUT_NOT_INIT, &count);
if (q->qdio_error)
q->error_status_flags|=
#ifdef QDIO_USE_PROCESSING_STATE
if (last_position>=0)
- set_slsb(&slsb[last_position],SLSB_P_INPUT_PROCESSING);
+ set_slsb(q, &last_position, SLSB_P_INPUT_NOT_INIT, &count);
#endif /* QDIO_USE_PROCESSING_STATE */
QDIO_DBF_HEX4(0,trace,&q->first_to_check,sizeof(int));
tiqdio_is_inbound_q_done(struct qdio_q *q)
{
int no_used;
+ unsigned int start_buf, count;
+ unsigned char state = 0;
+ struct qdio_irq *irq = (struct qdio_irq *) q->irq_ptr;
+
#ifdef CONFIG_QDIO_DEBUG
char dbf_text[15];
#endif
if (!q->siga_sync)
/* we'll check for more primed buffers in qeth_stop_polling */
return 0;
-
- if (q->slsb.acc.val[q->first_to_check]!=SLSB_P_INPUT_PRIMED)
+ if (irq->is_qebsm) {
+ count = 1;
+ start_buf = q->first_to_check;
+ qdio_do_eqbs(q, &state, &start_buf, &count);
+ } else
+ state = q->slsb.acc.val[q->first_to_check];
+ if (state != SLSB_P_INPUT_PRIMED)
/*
* nothing more to do, if next buffer is not PRIMED.
* note that we did a SYNC_MEMORY before, that there
qdio_is_inbound_q_done(struct qdio_q *q)
{
int no_used;
+ unsigned int start_buf, count;
+ unsigned char state = 0;
+ struct qdio_irq *irq = (struct qdio_irq *) q->irq_ptr;
+
#ifdef CONFIG_QDIO_DEBUG
char dbf_text[15];
#endif
QDIO_DBF_TEXT4(0,trace,dbf_text);
return 1;
}
-
- if (q->slsb.acc.val[q->first_to_check]==SLSB_P_INPUT_PRIMED) {
+ if (irq->is_qebsm) {
+ count = 1;
+ start_buf = q->first_to_check;
+ qdio_do_eqbs(q, &state, &start_buf, &count);
+ } else
+ state = q->slsb.acc.val[q->first_to_check];
+ if (state == SLSB_P_INPUT_PRIMED) {
/* we got something to do */
QDIO_DBF_TEXT4(0,trace,"inqisntA");
QDIO_DBF_HEX4(0,trace,&q,sizeof(void*));
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_KEY;*/
- }
+ if (!irq_ptr->is_qebsm) {
+ unsigned int count = 1;
+ for (j = 0; j < QDIO_MAX_BUFFERS_PER_Q; j++)
+ set_slsb(q, &j, SLSB_P_INPUT_NOT_INIT, &count);
+ }
}
for (i=0;i<no_output_qs;i++) {
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_KEY;*/
- }
+ if (!irq_ptr->is_qebsm) {
+ unsigned int count = 1;
+ for (j = 0; j < QDIO_MAX_BUFFERS_PER_Q; j++)
+ set_slsb(q, &j, SLSB_P_OUTPUT_NOT_INIT, &count);
+ }
}
}
qdio_synchronize(struct ccw_device *cdev, unsigned int flags,
unsigned int queue_number)
{
- int cc;
+ int cc = 0;
struct qdio_q *q;
struct qdio_irq *irq_ptr;
void *ptr;
q=irq_ptr->input_qs[queue_number];
if (!q)
return -EINVAL;
- cc = do_siga_sync(q->irq, 0, q->mask);
+ if (!(irq_ptr->is_qebsm))
+ cc = do_siga_sync(0x10000|q->irq, 0, q->mask);
} else if (flags&QDIO_FLAG_SYNC_OUTPUT) {
q=irq_ptr->output_qs[queue_number];
if (!q)
return -EINVAL;
- cc = do_siga_sync(q->irq, q->mask, 0);
+ if (!(irq_ptr->is_qebsm))
+ cc = do_siga_sync(0x10000|q->irq, q->mask, 0);
} else
return -EINVAL;
return cc;
}
-static unsigned char
-qdio_check_siga_needs(int sch)
+static inline void
+qdio_check_subchannel_qebsm(struct qdio_irq *irq_ptr, unsigned char qdioac,
+ unsigned long token)
+{
+ struct qdio_q *q;
+ int i;
+ unsigned int count, start_buf;
+ char dbf_text[15];
+
+ /*check if QEBSM is disabled */
+ if (!(irq_ptr->is_qebsm) || !(qdioac & 0x01)) {
+ irq_ptr->is_qebsm = 0;
+ irq_ptr->sch_token = 0;
+ irq_ptr->qib.rflags &= ~QIB_RFLAGS_ENABLE_QEBSM;
+ QDIO_DBF_TEXT0(0,setup,"noV=V");
+ return;
+ }
+ irq_ptr->sch_token = token;
+ /*input queue*/
+ for (i = 0; i < irq_ptr->no_input_qs;i++) {
+ q = irq_ptr->input_qs[i];
+ count = QDIO_MAX_BUFFERS_PER_Q;
+ start_buf = 0;
+ set_slsb(q, &start_buf, SLSB_P_INPUT_NOT_INIT, &count);
+ }
+ sprintf(dbf_text,"V=V:%2x",irq_ptr->is_qebsm);
+ QDIO_DBF_TEXT0(0,setup,dbf_text);
+ sprintf(dbf_text,"%8lx",irq_ptr->sch_token);
+ QDIO_DBF_TEXT0(0,setup,dbf_text);
+ /*output queue*/
+ for (i = 0; i < irq_ptr->no_output_qs; i++) {
+ q = irq_ptr->output_qs[i];
+ count = QDIO_MAX_BUFFERS_PER_Q;
+ start_buf = 0;
+ set_slsb(q, &start_buf, SLSB_P_OUTPUT_NOT_INIT, &count);
+ }
+}
+
+static void
+qdio_get_ssqd_information(struct qdio_irq *irq_ptr)
{
int result;
unsigned char qdioac;
-
struct {
struct chsc_header request;
u16 reserved1;
u8 reserved5;
u16 sch;
u8 qfmt;
- u8 reserved6;
- u8 qdioac;
+ u8 parm;
+ u8 qdioac1;
u8 sch_class;
u8 reserved7;
u8 icnt;
u8 reserved8;
u8 ocnt;
+ u8 reserved9;
+ u8 mbccnt;
+ u16 qdioac2;
+ u64 sch_token;
} *ssqd_area;
+ QDIO_DBF_TEXT0(0,setup,"getssqd");
+ qdioac = 0;
ssqd_area = (void *)get_zeroed_page(GFP_KERNEL | GFP_DMA);
if (!ssqd_area) {
QDIO_PRINT_WARN("Could not get memory for chsc. Using all " \
- "SIGAs for sch x%x.\n", sch);
- return CHSC_FLAG_SIGA_INPUT_NECESSARY ||
- CHSC_FLAG_SIGA_OUTPUT_NECESSARY ||
- CHSC_FLAG_SIGA_SYNC_NECESSARY; /* all flags set */
+ "SIGAs for sch x%x.\n", irq_ptr->irq);
+ irq_ptr->qdioac = CHSC_FLAG_SIGA_INPUT_NECESSARY ||
+ CHSC_FLAG_SIGA_OUTPUT_NECESSARY ||
+ CHSC_FLAG_SIGA_SYNC_NECESSARY; /* all flags set */
+ irq_ptr->is_qebsm = 0;
+ irq_ptr->sch_token = 0;
+ irq_ptr->qib.rflags &= ~QIB_RFLAGS_ENABLE_QEBSM;
+ return;
}
+
ssqd_area->request = (struct chsc_header) {
.length = 0x0010,
.code = 0x0024,
};
-
- ssqd_area->first_sch = sch;
- ssqd_area->last_sch = sch;
-
- result=chsc(ssqd_area);
+ ssqd_area->first_sch = irq_ptr->irq;
+ ssqd_area->last_sch = irq_ptr->irq;
+ result = chsc(ssqd_area);
if (result) {
QDIO_PRINT_WARN("CHSC returned cc %i. Using all " \
"SIGAs for sch x%x.\n",
- result,sch);
+ result, irq_ptr->irq);
qdioac = CHSC_FLAG_SIGA_INPUT_NECESSARY ||
CHSC_FLAG_SIGA_OUTPUT_NECESSARY ||
CHSC_FLAG_SIGA_SYNC_NECESSARY; /* all flags set */
+ irq_ptr->is_qebsm = 0;
goto out;
}
if (ssqd_area->response.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",
- ssqd_area->response.code, sch);
+ ssqd_area->response.code, irq_ptr->irq);
qdioac = CHSC_FLAG_SIGA_INPUT_NECESSARY ||
CHSC_FLAG_SIGA_OUTPUT_NECESSARY ||
CHSC_FLAG_SIGA_SYNC_NECESSARY; /* all flags set */
+ irq_ptr->is_qebsm = 0;
goto out;
}
if (!(ssqd_area->flags & CHSC_FLAG_QDIO_CAPABILITY) ||
!(ssqd_area->flags & CHSC_FLAG_VALIDITY) ||
- (ssqd_area->sch != sch)) {
+ (ssqd_area->sch != irq_ptr->irq)) {
QDIO_PRINT_WARN("huh? problems checking out sch x%x... " \
- "using all SIGAs.\n",sch);
+ "using all SIGAs.\n",irq_ptr->irq);
qdioac = CHSC_FLAG_SIGA_INPUT_NECESSARY |
CHSC_FLAG_SIGA_OUTPUT_NECESSARY |
CHSC_FLAG_SIGA_SYNC_NECESSARY; /* worst case */
+ irq_ptr->is_qebsm = 0;
goto out;
}
-
- qdioac = ssqd_area->qdioac;
+ qdioac = ssqd_area->qdioac1;
out:
+ qdio_check_subchannel_qebsm(irq_ptr, qdioac,
+ ssqd_area->sch_token);
free_page ((unsigned long) ssqd_area);
- return qdioac;
+ irq_ptr->qdioac = qdioac;
}
static unsigned int
sprintf(dbf_text,"hydrati%1x", hydra_thinints);
QDIO_DBF_TEXT0(0,setup,dbf_text);
+#ifdef CONFIG_ARCH_S390X
+ /* Check for QEBSM support in general (bit 58). */
+ is_passthrough = css_general_characteristics.qebsm;
+#endif
+ sprintf(dbf_text,"cssQBS:%1x", is_passthrough);
+ QDIO_DBF_TEXT0(0,setup,dbf_text);
+
/* Check for aif time delay disablement fac (bit 56). If installed,
* omit svs even under lpar (good point by rick again) */
omit_svs = css_general_characteristics.aif_tdd;
QDIO_DBF_TEXT2(0,setup,dbf_text);
if (irq_ptr->is_thinint_irq) {
- irq_ptr->dev_st_chg_ind=qdio_get_indicator();
+ 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 " \
irq_ptr->qdr->qkey=QDIO_STORAGE_KEY;
/* fill in qib */
+ irq_ptr->is_qebsm = is_passthrough;
+ if (irq_ptr->is_qebsm)
+ irq_ptr->qib.rflags |= QIB_RFLAGS_ENABLE_QEBSM;
+
irq_ptr->qib.qfmt=init_data->q_format;
if (init_data->no_input_qs)
irq_ptr->qib.isliba=(unsigned long)(irq_ptr->input_qs[0]->slib);
return -EIO;
}
- irq_ptr->qdioac=qdio_check_siga_needs(irq_ptr->irq);
+ qdio_get_ssqd_information(irq_ptr);
/* if this gets set once, we're running under VM and can omit SVSes */
if (irq_ptr->qdioac&CHSC_FLAG_SIGA_SYNC_NECESSARY)
omit_svs=1;
qdio_do_qdio_fill_input(struct qdio_q *q, unsigned int qidx,
unsigned int count, struct qdio_buffer *buffers)
{
+ struct qdio_irq *irq = (struct qdio_irq *) q->irq_ptr;
+ qidx &= (QDIO_MAX_BUFFERS_PER_Q - 1);
+ if (irq->is_qebsm) {
+ while (count)
+ set_slsb(q, &qidx, SLSB_CU_INPUT_EMPTY, &count);
+ return;
+ }
for (;;) {
- set_slsb(&q->slsb.acc.val[qidx],SLSB_CU_INPUT_EMPTY);
+ set_slsb(q, &qidx, SLSB_CU_INPUT_EMPTY, &count);
count--;
if (!count) break;
- qidx=(qidx+1)&(QDIO_MAX_BUFFERS_PER_Q-1);
+ 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(struct qdio_q *q, unsigned int qidx,
unsigned int count, struct qdio_buffer *buffers)
{
+ struct qdio_irq *irq = (struct qdio_irq *) q->irq_ptr;
+
+ qidx &= (QDIO_MAX_BUFFERS_PER_Q - 1);
+ if (irq->is_qebsm) {
+ while (count)
+ set_slsb(q, &qidx, SLSB_CU_OUTPUT_PRIMED, &count);
+ return;
+ }
+
for (;;) {
- set_slsb(&q->slsb.acc.val[qidx],SLSB_CU_OUTPUT_PRIMED);
+ set_slsb(q, &qidx, SLSB_CU_OUTPUT_PRIMED, &count);
count--;
if (!count) break;
- qidx=(qidx+1)&(QDIO_MAX_BUFFERS_PER_Q-1);
+ qidx = (qidx + 1) & (QDIO_MAX_BUFFERS_PER_Q - 1);
}
-
- /* SIGA write will sync the queues */
- /*SYNC_MEMORY;*/
}
static inline void
struct qdio_buffer *buffers)
{
int used_elements;
+ unsigned int cnt, start_buf;
+ unsigned char state = 0;
+ struct qdio_irq *irq = (struct qdio_irq *) q->irq_ptr;
/* This is the outbound handling of queues */
#ifdef QDIO_PERFORMANCE_STATS
* 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) {
+ if (irq->is_qebsm) {
+ cnt = 1;
+ start_buf = ((qidx+QDIO_MAX_BUFFERS_PER_Q-1) &
+ (QDIO_MAX_BUFFERS_PER_Q-1));
+ qdio_do_eqbs(q, &state, &start_buf, &cnt);
+ } else
+ state = q->slsb.acc.val[(qidx+QDIO_MAX_BUFFERS_PER_Q-1)
+ &(QDIO_MAX_BUFFERS_PER_Q-1) ];
+ if (state != SLSB_CU_OUTPUT_PRIMED) {
qdio_kick_outbound_q(q);
} else {
QDIO_DBF_TEXT3(0,trace, "fast-req");
projects / GitHub / exynos8895 / android_kernel_samsung_universal8895.git / commitdiff