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Commit dcf4ae2d authored by Frank Blaschka's avatar Frank Blaschka Committed by David S. Miller
Browse files

qeth: change some configurations defaults 



This patch turns on RX checksum and GRO by default. To improve
receiving performance and reduce congestion in case of network
bursts we also increase the default number of inbound buffers.

Signed-off-by: default avatarFrank Blaschka <frank.blaschka@de.ibm.com>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent 2e588f84

drivers/s390/net/qeth_core.h

+2 −1
Original line number Diff line number Diff line
@@ -225,7 +225,8 @@ static inline int qeth_is_ipa_enabled(struct qeth_ipa_info *ipa, 
/*****************************************************************************/

#define QETH_MAX_QUEUES 4

#define QETH_IN_BUF_SIZE_DEFAULT 65536

#define QETH_IN_BUF_COUNT_DEFAULT 16

#define QETH_IN_BUF_COUNT_DEFAULT 64

#define QETH_IN_BUF_COUNT_HSDEFAULT 128

#define QETH_IN_BUF_COUNT_MIN 8

#define QETH_IN_BUF_COUNT_MAX 128

#define QETH_MAX_BUFFER_ELEMENTS(card) ((card)->qdio.in_buf_size >> 12)

drivers/s390/net/qeth_core_main.c

+4 −1
Original line number Diff line number Diff line
@@ -1026,6 +1026,9 @@ static void qeth_init_qdio_info(struct qeth_card *card) 
	atomic_set(&card->qdio.state, QETH_QDIO_UNINITIALIZED);

	/* inbound */

	card->qdio.in_buf_size = QETH_IN_BUF_SIZE_DEFAULT;

	if (card->info.type == QETH_CARD_TYPE_IQD)

		card->qdio.init_pool.buf_count = QETH_IN_BUF_COUNT_HSDEFAULT;

	else

		card->qdio.init_pool.buf_count = QETH_IN_BUF_COUNT_DEFAULT;

	card->qdio.in_buf_pool.buf_count = card->qdio.init_pool.buf_count;

	INIT_LIST_HEAD(&card->qdio.in_buf_pool.entry_list);

drivers/s390/net/qeth_l3_main.c

+5 −0
Original line number Diff line number Diff line
@@ -3392,6 +3392,8 @@ static int qeth_l3_setup_netdev(struct qeth_card *card) 
			if (!(card->info.unique_id & UNIQUE_ID_NOT_BY_CARD))

				card->dev->dev_id = card->info.unique_id &

							 0xffff;

			if (!card->info.guestlan)

				card->dev->features |= NETIF_F_GRO;

		}

	} else if (card->info.type == QETH_CARD_TYPE_IQD) {

		card->dev = alloc_netdev(0, "hsi%d", ether_setup);
@@ -3430,6 +3432,9 @@ static int qeth_l3_probe_device(struct ccwgroup_device *gdev) 
	card->discipline.output_handler = (qdio_handler_t *)

		qeth_qdio_output_handler;

	card->discipline.recover = qeth_l3_recover;

	if ((card->info.type == QETH_CARD_TYPE_OSD) ||

	    (card->info.type == QETH_CARD_TYPE_OSX))

		card->options.checksum_type = HW_CHECKSUMMING;

	return 0;

}