openwrt/target/linux/layerscape/patches-5.4/809-jailhouse-0009-ivshmem-net-Fix-stuck-state-machine-during-setup.patch
Yangbo Lu cddd459140 layerscape: add patches-5.4
Add patches for linux-5.4. The patches are from NXP LSDK-20.04 release
which was tagged LSDK-20.04-V5.4.
https://source.codeaurora.org/external/qoriq/qoriq-components/linux/

For boards LS1021A-IOT, and Traverse-LS1043 which are not involved in
LSDK, port the dts patches from 4.14.

The patches are sorted into the following categories:
  301-arch-xxxx
  302-dts-xxxx
  303-core-xxxx
  701-net-xxxx
  801-audio-xxxx
  802-can-xxxx
  803-clock-xxxx
  804-crypto-xxxx
  805-display-xxxx
  806-dma-xxxx
  807-gpio-xxxx
  808-i2c-xxxx
  809-jailhouse-xxxx
  810-keys-xxxx
  811-kvm-xxxx
  812-pcie-xxxx
  813-pm-xxxx
  814-qe-xxxx
  815-sata-xxxx
  816-sdhc-xxxx
  817-spi-xxxx
  818-thermal-xxxx
  819-uart-xxxx
  820-usb-xxxx
  821-vfio-xxxx

Signed-off-by: Yangbo Lu <yangbo.lu@nxp.com>
2020-05-07 12:53:06 +02:00

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Diff

From 74de99b0e1df634949c45df1c370d458e6a3c98a Mon Sep 17 00:00:00 2001
From: Jan Kiszka <jan.kiszka@siemens.com>
Date: Sun, 1 Jan 2017 15:54:55 +0100
Subject: [PATCH] ivshmem-net: Fix stuck state machine during setup
If the remote side is already in INIT state (or even higher) and has a
cached rstate of RESET, we won't make progress when signaling RESET
again because the remote side won't send a state update. Fix this by
enforcing a local check after probe completion.
Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com>
(cherry picked from commit fceed9d0ab2486589c57c0793fbfbca4832442b9)
---
drivers/net/ivshmem-net.c | 1 +
1 file changed, 1 insertion(+)
--- a/drivers/net/ivshmem-net.c
+++ b/drivers/net/ivshmem-net.c
@@ -911,6 +911,7 @@ static int ivshm_net_probe(struct pci_de
writel(IVSHMEM_INTX_ENABLE, &in->ivshm_regs->intxctrl);
writel(IVSHM_NET_STATE_RESET, &in->ivshm_regs->lstate);
+ ivshm_net_check_state(ndev);
return 0;