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Commit 0b926ac3 authored by Julian Wiedmann's avatar Julian Wiedmann Committed by Martin Schwidefsky
Browse files

s390/qdio: consider ERROR buffers for inbound-full condition 



In the unlikely case that an ERROR buffer (presented by the HW)
consumed the last available slot on the input queue, increment the
corresponding statistics counter.

Signed-off-by: default avatarJulian Wiedmann <jwi@linux.vnet.ibm.com>
Reviewed-by: default avatarBenjamin Block <bblock@linux.vnet.ibm.com>
Signed-off-by: default avatarMartin Schwidefsky <schwidefsky@de.ibm.com>
parent edfb8d8f

drivers/s390/cio/qdio_main.c

+2 −1
Original line number Diff line number Diff line
@@ -536,7 +536,8 @@ static int get_inbound_buffer_frontier(struct qdio_q *q) 
	case SLSB_P_INPUT_ERROR:

		process_buffer_error(q, count);

		q->first_to_check = add_buf(q->first_to_check, count);

		atomic_sub(count, &q->nr_buf_used);

		if (atomic_sub_return(count, &q->nr_buf_used) == 0)

			qperf_inc(q, inbound_queue_full);

		if (q->irq_ptr->perf_stat_enabled)

			account_sbals_error(q, count);

		break;