mirror of
https://github.com/openwrt/openwrt.git
synced 2024-12-28 01:28:59 +00:00
832e2f6dd0
Changelog: https://cdn.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.6.35 Removed upstreamed: bcm27xx/patches-6.6/950-1135-ax25-Fix-refcount-imbalance-on-inbound-connections.patch[1] Removed no longer needed: generic/pending-6.6/779-net-vxlan-don-t-learn-non-unicast-L2-destinations.patch[2] All other patches automatically rebased. Build system: x86/64 Build-tested: x86/64/AMD Cezanne, flogic/glinet_gl-mt6000, flogic/xiaomi_redmi-router-ax6000-ubootmod, ramips/tplink_archer-a6-v3 Run-tested: x86/64/AMD Cezanne, flogic/glinet_gl-mt6000, flogic/xiaomi_redmi-router-ax6000-ubootmod, ramips/tplink_archer-a6-v3 1. https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?h=v6.6.35&id=52100fd74ad07b53a4666feafff1cd11436362d3 2. As suggested by @DragonBluep, "This patch can be removed. It will never return false. And the upstream commit should fix the same issue: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit?h=v6.6.35&id=924f7bbfc5cfd029e417c56357ca01eae681fba6" Signed-off-by: John Audia <therealgraysky@proton.me>
67 lines
2.6 KiB
Diff
67 lines
2.6 KiB
Diff
From d631e7354399aa2fb6079b72f515acd6d080c203 Mon Sep 17 00:00:00 2001
|
|
From: Jonathan Bell <jonathan@raspberrypi.com>
|
|
Date: Thu, 13 Jul 2023 14:43:21 +0100
|
|
Subject: [PATCH 0481/1085] xhci: Use more event ring segment table entries
|
|
|
|
Users have reported log spam created by "Event Ring Full" xHC event
|
|
TRBs. These are caused by interrupt latency in conjunction with a very
|
|
busy set of devices on the bus. The errors are benign, but throughput
|
|
will suffer as the xHC will pause processing of transfers until the
|
|
event ring is drained by the kernel. Expand the number of event TRB slots
|
|
available by increasing the number of event ring segments in the ERST.
|
|
|
|
Controllers have a hardware-defined limit as to the number of ERST
|
|
entries they can process, so make the actual number in use
|
|
min(ERST_MAX_SEGS, hw_max).
|
|
|
|
Signed-off-by: Jonathan Bell <jonathan@raspberrypi.com>
|
|
---
|
|
drivers/usb/host/xhci-mem.c | 9 +++++++--
|
|
drivers/usb/host/xhci.h | 5 +++--
|
|
2 files changed, 10 insertions(+), 4 deletions(-)
|
|
|
|
--- a/drivers/usb/host/xhci-mem.c
|
|
+++ b/drivers/usb/host/xhci-mem.c
|
|
@@ -2241,12 +2241,17 @@ xhci_alloc_interrupter(struct xhci_hcd *
|
|
struct device *dev = xhci_to_hcd(xhci)->self.sysdev;
|
|
struct xhci_interrupter *ir;
|
|
int ret;
|
|
+ unsigned int nr_event_segs;
|
|
|
|
ir = kzalloc_node(sizeof(*ir), flags, dev_to_node(dev));
|
|
if (!ir)
|
|
return NULL;
|
|
|
|
- ir->event_ring = xhci_ring_alloc(xhci, ERST_NUM_SEGS, 1, TYPE_EVENT,
|
|
+ nr_event_segs = min_t(unsigned int,
|
|
+ 1 << HCS_ERST_MAX(xhci->hcs_params2),
|
|
+ ERST_MAX_SEGS);
|
|
+
|
|
+ ir->event_ring = xhci_ring_alloc(xhci, nr_event_segs, 1, TYPE_EVENT,
|
|
0, flags);
|
|
if (!ir->event_ring) {
|
|
xhci_warn(xhci, "Failed to allocate interrupter event ring\n");
|
|
@@ -2283,7 +2288,7 @@ xhci_add_interrupter(struct xhci_hcd *xh
|
|
/* set ERST count with the number of entries in the segment table */
|
|
erst_size = readl(&ir->ir_set->erst_size);
|
|
erst_size &= ERST_SIZE_MASK;
|
|
- erst_size |= ERST_NUM_SEGS;
|
|
+ erst_size |= ir->event_ring->num_segs;
|
|
writel(erst_size, &ir->ir_set->erst_size);
|
|
|
|
erst_base = xhci_read_64(xhci, &ir->ir_set->erst_base);
|
|
--- a/drivers/usb/host/xhci.h
|
|
+++ b/drivers/usb/host/xhci.h
|
|
@@ -1680,8 +1680,9 @@ struct urb_priv {
|
|
* Each segment table entry is 4*32bits long. 1K seems like an ok size:
|
|
* (1K bytes * 8bytes/bit) / (4*32 bits) = 64 segment entries in the table,
|
|
* meaning 64 ring segments.
|
|
- * Initial allocated size of the ERST, in number of entries */
|
|
-#define ERST_NUM_SEGS 1
|
|
+ */
|
|
+/* Maximum number of segments in the ERST */
|
|
+#define ERST_MAX_SEGS 8
|
|
/* Poll every 60 seconds */
|
|
#define POLL_TIMEOUT 60
|
|
/* Stop endpoint command timeout (secs) for URB cancellation watchdog timer */
|