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-rw-r--r--arch/s390/include/asm/qdio.h12
-rw-r--r--drivers/s390/cio/qdio_main.c43
-rw-r--r--drivers/s390/net/qeth_core_main.c4
3 files changed, 31 insertions, 28 deletions
diff --git a/arch/s390/include/asm/qdio.h b/arch/s390/include/asm/qdio.h
index 74528e27b37f..f039d86adf67 100644
--- a/arch/s390/include/asm/qdio.h
+++ b/arch/s390/include/asm/qdio.h
@@ -325,11 +325,13 @@ typedef void qdio_handler_t(struct ccw_device *, unsigned int, int,
int, int, unsigned long);
/* qdio errors reported to the upper-layer program */
-#define QDIO_ERROR_SIGA_TARGET 0x02
-#define QDIO_ERROR_SIGA_ACCESS_EXCEPTION 0x10
-#define QDIO_ERROR_SIGA_BUSY 0x20
-#define QDIO_ERROR_ACTIVATE_CHECK_CONDITION 0x40
-#define QDIO_ERROR_SLSB_STATE 0x80
+#define QDIO_ERROR_ACTIVATE 0x0001
+#define QDIO_ERROR_GET_BUF_STATE 0x0002
+#define QDIO_ERROR_SET_BUF_STATE 0x0004
+#define QDIO_ERROR_SLSB_STATE 0x0100
+
+#define QDIO_ERROR_FATAL 0x00ff
+#define QDIO_ERROR_TEMPORARY 0xff00
/* for qdio_cleanup */
#define QDIO_FLAG_CLEANUP_USING_CLEAR 0x01
diff --git a/drivers/s390/cio/qdio_main.c b/drivers/s390/cio/qdio_main.c
index 35c685c374e9..19902cdc6fac 100644
--- a/drivers/s390/cio/qdio_main.c
+++ b/drivers/s390/cio/qdio_main.c
@@ -63,7 +63,7 @@ static inline int do_siga_input(unsigned long schid, unsigned int mask,
" ipm %0\n"
" srl %0,28\n"
: "=d" (cc)
- : "d" (__fc), "d" (__schid), "d" (__mask) : "cc", "memory");
+ : "d" (__fc), "d" (__schid), "d" (__mask) : "cc");
return cc;
}
@@ -74,7 +74,7 @@ static inline int do_siga_input(unsigned long schid, unsigned int mask,
* @bb: busy bit indicator, set only if SIGA-w/wt could not access a buffer
* @fc: function code to perform
*
- * Returns cc or QDIO_ERROR_SIGA_ACCESS_EXCEPTION.
+ * Returns condition code.
* Note: For IQDC unicast queues only the highest priority queue is processed.
*/
static inline int do_siga_output(unsigned long schid, unsigned long mask,
@@ -85,18 +85,16 @@ static inline int do_siga_output(unsigned long schid, unsigned long mask,
register unsigned long __schid asm("1") = schid;
register unsigned long __mask asm("2") = mask;
register unsigned long __aob asm("3") = aob;
- int cc = QDIO_ERROR_SIGA_ACCESS_EXCEPTION;
+ int cc;
asm volatile(
" siga 0\n"
- "0: ipm %0\n"
+ " ipm %0\n"
" srl %0,28\n"
- "1:\n"
- EX_TABLE(0b, 1b)
- : "+d" (cc), "+d" (__fc), "+d" (__schid), "+d" (__mask),
- "+d" (__aob)
- : : "cc", "memory");
- *bb = ((unsigned int) __fc) >> 31;
+ : "=d" (cc), "+d" (__fc), "+d" (__aob)
+ : "d" (__schid), "d" (__mask)
+ : "cc");
+ *bb = __fc >> 31;
return cc;
}
@@ -167,7 +165,7 @@ again:
DBF_ERROR("%4x EQBS ERROR", SCH_NO(q));
DBF_ERROR("%3d%3d%2d", count, tmp_count, nr);
- q->handler(q->irq_ptr->cdev, QDIO_ERROR_ACTIVATE_CHECK_CONDITION,
+ q->handler(q->irq_ptr->cdev, QDIO_ERROR_GET_BUF_STATE,
q->nr, q->first_to_kick, count, q->irq_ptr->int_parm);
return 0;
}
@@ -215,7 +213,7 @@ again:
DBF_ERROR("%4x SQBS ERROR", SCH_NO(q));
DBF_ERROR("%3d%3d%2d", count, tmp_count, nr);
- q->handler(q->irq_ptr->cdev, QDIO_ERROR_ACTIVATE_CHECK_CONDITION,
+ q->handler(q->irq_ptr->cdev, QDIO_ERROR_SET_BUF_STATE,
q->nr, q->first_to_kick, count, q->irq_ptr->int_parm);
return 0;
}
@@ -313,7 +311,7 @@ static inline int qdio_siga_sync(struct qdio_q *q, unsigned int output,
cc = do_siga_sync(schid, output, input, fc);
if (unlikely(cc))
DBF_ERROR("%4x SIGA-S:%2d", SCH_NO(q), cc);
- return cc;
+ return (cc) ? -EIO : 0;
}
static inline int qdio_siga_sync_q(struct qdio_q *q)
@@ -384,7 +382,7 @@ static inline int qdio_siga_input(struct qdio_q *q)
cc = do_siga_input(schid, q->mask, fc);
if (unlikely(cc))
DBF_ERROR("%4x SIGA-R:%2d", SCH_NO(q), cc);
- return cc;
+ return (cc) ? -EIO : 0;
}
#define qdio_siga_sync_out(q) qdio_siga_sync(q, ~0U, 0)
@@ -443,7 +441,7 @@ static void process_buffer_error(struct qdio_q *q, int count)
unsigned char state = (q->is_input_q) ? SLSB_P_INPUT_NOT_INIT :
SLSB_P_OUTPUT_NOT_INIT;
- q->qdio_error |= QDIO_ERROR_SLSB_STATE;
+ q->qdio_error = QDIO_ERROR_SLSB_STATE;
/* special handling for no target buffer empty */
if ((!q->is_input_q &&
@@ -575,7 +573,7 @@ static int qdio_inbound_q_moved(struct qdio_q *q)
bufnr = get_inbound_buffer_frontier(q);
- if ((bufnr != q->last_move) || q->qdio_error) {
+ if (bufnr != q->last_move) {
q->last_move = bufnr;
if (!is_thinint_irq(q->irq_ptr) && MACHINE_IS_LPAR)
q->u.in.timestamp = get_clock();
@@ -863,7 +861,7 @@ static inline int qdio_outbound_q_moved(struct qdio_q *q)
bufnr = get_outbound_buffer_frontier(q);
- if ((bufnr != q->last_move) || q->qdio_error) {
+ if (bufnr != q->last_move) {
q->last_move = bufnr;
DBF_DEV_EVENT(DBF_INFO, q->irq_ptr, "out moved:%1d", q->nr);
return 1;
@@ -894,13 +892,16 @@ retry:
goto retry;
}
DBF_ERROR("%4x cc2 BBC:%1d", SCH_NO(q), q->nr);
- cc |= QDIO_ERROR_SIGA_BUSY;
- } else
+ cc = -EBUSY;
+ } else {
DBF_DEV_EVENT(DBF_INFO, q->irq_ptr, "siga-w cc2:%1d", q->nr);
+ cc = -ENOBUFS;
+ }
break;
case 1:
case 3:
DBF_ERROR("%4x SIGA-W:%1d", SCH_NO(q), cc);
+ cc = -EIO;
break;
}
if (retries) {
@@ -1090,7 +1091,7 @@ static void qdio_handle_activate_check(struct ccw_device *cdev,
}
count = sub_buf(q->first_to_check, q->first_to_kick);
- q->handler(q->irq_ptr->cdev, QDIO_ERROR_ACTIVATE_CHECK_CONDITION,
+ q->handler(q->irq_ptr->cdev, QDIO_ERROR_ACTIVATE,
q->nr, q->first_to_kick, count, irq_ptr->int_parm);
no_handler:
qdio_set_state(irq_ptr, QDIO_IRQ_STATE_STOPPED);
@@ -1691,7 +1692,7 @@ int do_QDIO(struct ccw_device *cdev, unsigned int callflags,
"do%02x b:%02x c:%02x", callflags, bufnr, count);
if (irq_ptr->state != QDIO_IRQ_STATE_ACTIVE)
- return -EBUSY;
+ return -EIO;
if (!count)
return 0;
if (callflags & QDIO_FLAG_SYNC_INPUT)
diff --git a/drivers/s390/net/qeth_core_main.c b/drivers/s390/net/qeth_core_main.c
index 8334dadc681d..c146877e8b7b 100644
--- a/drivers/s390/net/qeth_core_main.c
+++ b/drivers/s390/net/qeth_core_main.c
@@ -3339,7 +3339,7 @@ static void qeth_flush_buffers(struct qeth_qdio_out_q *queue, int index,
if (rc) {
queue->card->stats.tx_errors += count;
/* ignore temporary SIGA errors without busy condition */
- if (rc == QDIO_ERROR_SIGA_TARGET)
+ if (rc == -ENOBUFS)
return;
QETH_CARD_TEXT(queue->card, 2, "flushbuf");
QETH_CARD_TEXT_(queue->card, 2, " q%d", queue->queue_no);
@@ -3533,7 +3533,7 @@ void qeth_qdio_output_handler(struct ccw_device *ccwdev,
int i;
QETH_CARD_TEXT(card, 6, "qdouhdl");
- if (qdio_error & QDIO_ERROR_ACTIVATE_CHECK_CONDITION) {
+ if (qdio_error & QDIO_ERROR_FATAL) {
QETH_CARD_TEXT(card, 2, "achkcond");
netif_stop_queue(card->dev);
qeth_schedule_recovery(card);
generated by cgit v1.2.3 (git 2.39.1) at 2024-12-27 03:09:46 +0100