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myri10ge: fix management of >4kB allocated pages

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Fix management of allocated physical pages when the architecture
page size is not 4kB since the firmware cannot cross 4K boundary.

Signed-off-by: Brice Goglin <brice@myri.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
This commit is contained in:
Brice Goglin 2007-03-21 19:46:57 +01:00 committed by Jeff Garzik
parent f761fae1ae
commit b52a8b7f0a
1 changed files with 8 additions and 0 deletions
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8
drivers/net/myri10ge/myri10ge.c
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@ -905,6 +905,14 @@ myri10ge_alloc_rx_pages(struct myri10ge_priv *mgp, struct myri10ge_rx_buf *rx,
(rx->page_offset + bytes <= MYRI10GE_ALLOC_SIZE)) {
/* we can use part of previous page */
get_page(rx->page);
#if MYRI10GE_ALLOC_SIZE > 4096
/* Firmware cannot cross 4K boundary.. */
if ((rx->page_offset >> 12) !=
((rx->page_offset + bytes - 1) >> 12)) {
rx->page_offset =
(rx->page_offset + bytes) & ~4095;
}
#endif
} else {
/* we need a new page */
page =