diff options
Diffstat (limited to 'target/linux/layerscape/patches-4.9/603-sdk_dpaa-update-the-xmit-timestamp-to-avoid-watchdog.patch')
| -rw-r--r-- | target/linux/layerscape/patches-4.9/603-sdk_dpaa-update-the-xmit-timestamp-to-avoid-watchdog.patch | 60 |
1 files changed, 60 insertions, 0 deletions
diff --git a/target/linux/layerscape/patches-4.9/603-sdk_dpaa-update-the-xmit-timestamp-to-avoid-watchdog.patch b/target/linux/layerscape/patches-4.9/603-sdk_dpaa-update-the-xmit-timestamp-to-avoid-watchdog.patch new file mode 100644 index 0000000000..a9a45962c5 --- /dev/null +++ b/target/linux/layerscape/patches-4.9/603-sdk_dpaa-update-the-xmit-timestamp-to-avoid-watchdog.patch @@ -0,0 +1,60 @@ +From 3d33284eb087deb7f62639a2d2c03b9d0a3eeb34 Mon Sep 17 00:00:00 2001 +From: Camelia Groza <camelia.groza@nxp.com> +Date: Mon, 11 Sep 2017 17:20:41 +0800 +Subject: [PATCH] sdk_dpaa: update the xmit timestamp to avoid watchdog + timeouts + +[core-linux part] + +Update txq0's trans_start in order to prevent the netdev watchdog from +triggering too quickly. Since we set the LLTX flag, the stack won't update +the jiffies for other tx queues. Prevent the watchdog from checking the +other tx queues by adding the NETIF_HW_ACCEL_MQ flag. + +Signed-off-by: Camelia Groza <camelia.groza@nxp.com> +--- + include/linux/netdev_features.h | 2 ++ + net/sched/sch_generic.c | 7 +++++++ + 2 files changed, 9 insertions(+) + +diff --git a/include/linux/netdev_features.h b/include/linux/netdev_features.h +index 9c6c8ef2e9e7..90b4107ebeff 100644 +--- a/include/linux/netdev_features.h ++++ b/include/linux/netdev_features.h +@@ -74,6 +74,7 @@ enum { + NETIF_F_BUSY_POLL_BIT, /* Busy poll */ + + NETIF_F_HW_TC_BIT, /* Offload TC infrastructure */ ++ NETIF_F_HW_ACCEL_MQ_BIT, /* Hardware-accelerated multiqueue */ + + /* + * Add your fresh new feature above and remember to update +@@ -136,6 +137,7 @@ enum { + #define NETIF_F_HW_L2FW_DOFFLOAD __NETIF_F(HW_L2FW_DOFFLOAD) + #define NETIF_F_BUSY_POLL __NETIF_F(BUSY_POLL) + #define NETIF_F_HW_TC __NETIF_F(HW_TC) ++#define NETIF_F_HW_ACCEL_MQ __NETIF_F(HW_ACCEL_MQ) + + #define for_each_netdev_feature(mask_addr, bit) \ + for_each_set_bit(bit, (unsigned long *)mask_addr, NETDEV_FEATURE_COUNT) +diff --git a/net/sched/sch_generic.c b/net/sched/sch_generic.c +index 6cfb6e9038c2..3fab16cb7c58 100644 +--- a/net/sched/sch_generic.c ++++ b/net/sched/sch_generic.c +@@ -309,6 +309,13 @@ static void dev_watchdog(unsigned long arg) + txq->trans_timeout++; + break; + } ++ ++ /* Devices with HW_ACCEL_MQ have multiple txqs ++ * but update only the first one's transmission ++ * timestamp so avoid checking the rest. ++ */ ++ if (dev->features & NETIF_F_HW_ACCEL_MQ) ++ break; + } + + if (some_queue_timedout) { +-- +2.11.1 + |