domenico/openwrt-R7800-nss
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kernel: bump 5.4 to 5.4.114

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Manually rebased*
  generic/backport-5.4/700-v5.5-net-core-allow-fast-GRO-for-skbs-with-Ethernet-heade.patch

Added new backport*
  generic/backport-5.4/050-gro-fix-napi_gro_frags-Fast-GRO-breakage-due-to-IP-a.patch

All others updated automatically.

The new backport was included based on this[1] upstream commit that will be
mainlined soon.  This change is needed because Eric Dumazet's check for
NET_IP_ALIGN (landed in 5.4.114) causes huge slowdowns on drivers which use
napi_gro_frags().

Build system: x86_64
Build-tested: ipq806x/R7800
Run-tested: ipq806x/R7800

No dmesg regressions, everything functional

*Credit to Alexander Lobakin
1. https://git.kernel.org/pub/scm/linux/kernel/git/netdev/net.git/commit/?id=7ad18ff6449cbd6beb26b53128ddf56d2685aa93

Signed-off-by: John Audia <graysky@archlinux.us>
This commit is contained in:
John Audia
2021-04-27 18:18:36 -04:00
committed by Hauke Mehrtens
parent 14a95b36b1
commit 0d2873df15
15 changed files with 113 additions and 38 deletions
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14
target/linux/generic/pending-5.4/690-net-add-support-for-threaded-NAPI-polling.patch
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@@ -95,7 +95,7 @@ Signed-off-by: Felix Fietkau <nbd@nbd.name>
static int netif_rx_internal(struct sk_buff *skb);
static int call_netdevice_notifiers_info(unsigned long val,
@@ -5911,6 +5912,11 @@ void __napi_schedule(struct napi_struct
@@ -5912,6 +5913,11 @@ void __napi_schedule(struct napi_struct
{
unsigned long flags;
@@ -107,7 +107,7 @@ Signed-off-by: Felix Fietkau <nbd@nbd.name>
local_irq_save(flags);
____napi_schedule(this_cpu_ptr(&softnet_data), n);
local_irq_restore(flags);
@@ -5958,6 +5964,11 @@ EXPORT_SYMBOL(napi_schedule_prep);
@@ -5959,6 +5965,11 @@ EXPORT_SYMBOL(napi_schedule_prep);
*/
void __napi_schedule_irqoff(struct napi_struct *n)
{
@@ -119,7 +119,7 @@ Signed-off-by: Felix Fietkau <nbd@nbd.name>
____napi_schedule(this_cpu_ptr(&softnet_data), n);
}
EXPORT_SYMBOL(__napi_schedule_irqoff);
@@ -6219,9 +6230,89 @@ static void init_gro_hash(struct napi_st
@@ -6220,9 +6231,89 @@ static void init_gro_hash(struct napi_st
napi->gro_bitmask = 0;
}
@@ -209,7 +209,7 @@ Signed-off-by: Felix Fietkau <nbd@nbd.name>
INIT_LIST_HEAD(&napi->poll_list);
hrtimer_init(&napi->timer, CLOCK_MONOTONIC, HRTIMER_MODE_REL_PINNED);
napi->timer.function = napi_watchdog;
@@ -6238,6 +6329,7 @@ void netif_napi_add(struct net_device *d
@@ -6239,6 +6330,7 @@ void netif_napi_add(struct net_device *d
#ifdef CONFIG_NETPOLL
napi->poll_owner = -1;
#endif
@@ -217,7 +217,7 @@ Signed-off-by: Felix Fietkau <nbd@nbd.name>
set_bit(NAPI_STATE_SCHED, &napi->state);
set_bit(NAPI_STATE_NPSVC, &napi->state);
list_add_rcu(&napi->dev_list, &dev->napi_list);
@@ -6278,6 +6370,7 @@ static void flush_gro_hash(struct napi_s
@@ -6279,6 +6371,7 @@ static void flush_gro_hash(struct napi_s
void netif_napi_del(struct napi_struct *napi)
{
might_sleep();
@@ -225,7 +225,7 @@ Signed-off-by: Felix Fietkau <nbd@nbd.name>
if (napi_hash_del(napi))
synchronize_net();
list_del_init(&napi->dev_list);
@@ -6290,50 +6383,18 @@ EXPORT_SYMBOL(netif_napi_del);
@@ -6291,50 +6384,18 @@ EXPORT_SYMBOL(netif_napi_del);
static int napi_poll(struct napi_struct *n, struct list_head *repoll)
{
@@ -280,7 +280,7 @@ Signed-off-by: Felix Fietkau <nbd@nbd.name>
/* Some drivers may have called napi_schedule
* prior to exhausting their budget.
@@ -10313,6 +10374,10 @@ static int __init net_dev_init(void)
@@ -10314,6 +10375,10 @@ static int __init net_dev_init(void)
sd->backlog.weight = weight_p;
}