From: Einar Lueck <elelueck@xxxxxxxxxx> Patch avoids SIGA-r calls in case of SIGA-r required. It only calls SIGA-r if a threshold of free buffer is reached. CPU consumption is reduced as a consequence. Signed-off-by: Einar Lueck <elelueck@xxxxxxxxxx> Signed-off-by: Frank Blaschka <frank.blaschka@xxxxxxxxxx> --- drivers/s390/net/qeth_core.h | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-) diff -urpN linux-2.6/drivers/s390/net/qeth_core.h linux-2.6-patched/drivers/s390/net/qeth_core.h --- linux-2.6/drivers/s390/net/qeth_core.h 2011-11-14 18:26:56.000000000 +0100 +++ linux-2.6-patched/drivers/s390/net/qeth_core.h 2011-11-14 18:27:18.000000000 +0100 @@ -236,8 +236,7 @@ static inline int qeth_is_ipa_enabled(st #define QETH_IN_BUF_COUNT_MAX 128 #define QETH_MAX_BUFFER_ELEMENTS(card) ((card)->qdio.in_buf_size >> 12) #define QETH_IN_BUF_REQUEUE_THRESHOLD(card) \ - ((card)->ssqd.qdioac1 & AC1_SIGA_INPUT_NEEDED ? 1 : \ - ((card)->qdio.in_buf_pool.buf_count / 2)) + ((card)->qdio.in_buf_pool.buf_count / 2) /* buffers we have to be behind before we get a PCI */ #define QETH_PCI_THRESHOLD_A(card) ((card)->qdio.in_buf_pool.buf_count+1) -- To unsubscribe from this list: send the line "unsubscribe linux-s390" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
