aboutsummaryrefslogtreecommitdiffstats
path: root/drivers/net/myri10ge/myri10ge.c
diff options
context:
space:
mode:
Diffstat (limited to 'drivers/net/myri10ge/myri10ge.c')
-rw-r--r--drivers/net/myri10ge/myri10ge.c19
1 files changed, 8 insertions, 11 deletions
diff --git a/drivers/net/myri10ge/myri10ge.c b/drivers/net/myri10ge/myri10ge.c
index c216e6a5d235..1e7fa2facbe1 100644
--- a/drivers/net/myri10ge/myri10ge.c
+++ b/drivers/net/myri10ge/myri10ge.c
@@ -900,19 +900,9 @@ myri10ge_alloc_rx_pages(struct myri10ge_priv *mgp, struct myri10ge_rx_buf *rx,
900 /* try to refill entire ring */ 900 /* try to refill entire ring */
901 while (rx->fill_cnt != (rx->cnt + rx->mask + 1)) { 901 while (rx->fill_cnt != (rx->cnt + rx->mask + 1)) {
902 idx = rx->fill_cnt & rx->mask; 902 idx = rx->fill_cnt & rx->mask;
903 903 if (rx->page_offset + bytes <= MYRI10GE_ALLOC_SIZE) {
904 if ((bytes < MYRI10GE_ALLOC_SIZE / 2) &&
905 (rx->page_offset + bytes <= MYRI10GE_ALLOC_SIZE)) {
906 /* we can use part of previous page */ 904 /* we can use part of previous page */
907 get_page(rx->page); 905 get_page(rx->page);
908#if MYRI10GE_ALLOC_SIZE > 4096
909 /* Firmware cannot cross 4K boundary.. */
910 if ((rx->page_offset >> 12) !=
911 ((rx->page_offset + bytes - 1) >> 12)) {
912 rx->page_offset =
913 (rx->page_offset + bytes) & ~4095;
914 }
915#endif
916 } else { 906 } else {
917 /* we need a new page */ 907 /* we need a new page */
918 page = 908 page =
@@ -941,6 +931,13 @@ myri10ge_alloc_rx_pages(struct myri10ge_priv *mgp, struct myri10ge_rx_buf *rx,
941 931
942 /* start next packet on a cacheline boundary */ 932 /* start next packet on a cacheline boundary */
943 rx->page_offset += SKB_DATA_ALIGN(bytes); 933 rx->page_offset += SKB_DATA_ALIGN(bytes);
934
935#if MYRI10GE_ALLOC_SIZE > 4096
936 /* don't cross a 4KB boundary */
937 if ((rx->page_offset >> 12) !=
938 ((rx->page_offset + bytes - 1) >> 12))
939 rx->page_offset = (rx->page_offset + 4096) & ~4095;
940#endif
944 rx->fill_cnt++; 941 rx->fill_cnt++;
945 942
946 /* copy 8 descriptors to the firmware at a time */ 943 /* copy 8 descriptors to the firmware at a time */