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authorLinas Vepstas <linas@austin.ibm.com>2006-12-13 16:20:59 -0500
committerJeff Garzik <jeff@garzik.org>2007-02-05 16:58:44 -0500
commit2c307db7e40ff537d39c2e66629ba718ee2a8e51 (patch)
treec597790940a0ae7c513808f3cfcc6f1486ab7f28 /drivers
parenta4182c50bcd6a20caae82c202436fe892f642150 (diff)
Spidernet RX Chain tail
Tell the hardware the location of the rx ring tail. More punctuation cleanup. Signed-off-by: Linas Vepstas <linas@austin.ibm.com> Cc: James K Lewis <jklewis@us.ibm.com> Cc: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Jeff Garzik <jeff@garzik.org>
Diffstat (limited to 'drivers')
-rw-r--r--drivers/net/spider_net.c15
1 files changed, 8 insertions, 7 deletions
diff --git a/drivers/net/spider_net.c b/drivers/net/spider_net.c
index 96a7e771daa4..67bbd7ba406d 100644
--- a/drivers/net/spider_net.c
+++ b/drivers/net/spider_net.c
@@ -487,10 +487,10 @@ spider_net_refill_rx_chain(struct spider_net_card *card)
487} 487}
488 488
489/** 489/**
490 * spider_net_alloc_rx_skbs - allocates rx skbs in rx descriptor chains 490 * spider_net_alloc_rx_skbs - Allocates rx skbs in rx descriptor chains
491 * @card: card structure 491 * @card: card structure
492 * 492 *
493 * returns 0 on success, <0 on failure 493 * Returns 0 on success, <0 on failure.
494 */ 494 */
495static int 495static int
496spider_net_alloc_rx_skbs(struct spider_net_card *card) 496spider_net_alloc_rx_skbs(struct spider_net_card *card)
@@ -501,17 +501,18 @@ spider_net_alloc_rx_skbs(struct spider_net_card *card)
501 result = -ENOMEM; 501 result = -ENOMEM;
502 502
503 chain = &card->rx_chain; 503 chain = &card->rx_chain;
504 /* put at least one buffer into the chain. if this fails, 504 /* Put at least one buffer into the chain. if this fails,
505 * we've got a problem. if not, spider_net_refill_rx_chain 505 * we've got a problem. If not, spider_net_refill_rx_chain
506 * will do the rest at the end of this function */ 506 * will do the rest at the end of this function. */
507 if (spider_net_prepare_rx_descr(card, chain->head)) 507 if (spider_net_prepare_rx_descr(card, chain->head))
508 goto error; 508 goto error;
509 else 509 else
510 chain->head = chain->head->next; 510 chain->head = chain->head->next;
511 511
512 /* this will allocate the rest of the rx buffers; if not, it's 512 /* This will allocate the rest of the rx buffers;
513 * business as usual later on */ 513 * if not, it's business as usual later on. */
514 spider_net_refill_rx_chain(card); 514 spider_net_refill_rx_chain(card);
515 spider_net_enable_rxchtails(card);
515 spider_net_enable_rxdmac(card); 516 spider_net_enable_rxdmac(card);
516 return 0; 517 return 0;
517 518