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authorFelix Fietkau <nbd@openwrt.org>2015-02-01 08:20:37 +0000
committerFelix Fietkau <nbd@openwrt.org>2015-02-01 08:20:37 +0000
commit10c8d8c4833c178b4a30871f020637c7ba94d014 (patch)
tree29dbe725c921e04cf3d63eb103a1c9e0097227dc
parent12c7c25398d1f5a7588aabe61eb053a1026e9854 (diff)
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ramips: fix ethernet driver tx completion polling
- budget is decremented with completed frames, so don't check if done is smaller - ACK the interrupt before processing further frames to fix a small race condition. Signed-off-by: Felix Fietkau <nbd@openwrt.org> SVN-Revision: 44234
-rw-r--r--target/linux/ramips/files/drivers/net/ethernet/ralink/ralink_soc_eth.c4
1 files changed, 2 insertions, 2 deletions
diff --git a/target/linux/ramips/files/drivers/net/ethernet/ralink/ralink_soc_eth.c b/target/linux/ramips/files/drivers/net/ethernet/ralink/ralink_soc_eth.c
index 9900a5e508..12c6ccaf98 100644
--- a/target/linux/ramips/files/drivers/net/ethernet/ralink/ralink_soc_eth.c
+++ b/target/linux/ramips/files/drivers/net/ethernet/ralink/ralink_soc_eth.c
@@ -902,11 +902,11 @@ txpoll_again:
if (!done)
return 0;
- if (done < budget) {
+ if (budget) {
+ fe_reg_w32(tx_intr, FE_REG_FE_INT_STATUS);
hwidx = fe_reg_r32(FE_REG_TX_DTX_IDX0);
if (idx != hwidx)
goto txpoll_again;
- fe_reg_w32(tx_intr, FE_REG_FE_INT_STATUS);
}
netdev_completed_queue(netdev, done, bytes_compl);