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update ACS override patch for 4.15

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based on https://aur.archlinux.org/linux-vfio.git
This commit is contained in:
Fabian Grünbichler 2018-03-09 14:42:42 +01:00
parent 1e99f45be0
commit 55f9bfa990
1 changed files with 25 additions and 26 deletions
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51
patches/kernel/0003-pci-Enable-overrides-for-missing-ACS-capabilities-4..patch
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@ -1,7 +1,7 @@
From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Mark Weiman <mark.weiman@markzz.com>
Date: Sat, 29 Jul 2017 09:15:32 -0400
Subject: [PATCH] pci: Enable overrides for missing ACS capabilities (4.12+)
Date: Wed, 7 Feb 2018 16:04:03 -0500
Subject: [PATCH] pci: Enable overrides for missing ACS capabilities (4.15)
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit
@ -50,14 +50,14 @@ your customers the hassle of this boot option.
Signed-off-by: Fabian Grünbichler <f.gruenbichler@proxmox.com>
---
Documentation/admin-guide/kernel-parameters.txt | 9 +++
drivers/pci/quirks.c | 102 ++++++++++++++++++++++++
2 files changed, 111 insertions(+)
drivers/pci/quirks.c | 101 ++++++++++++++++++++++++
2 files changed, 110 insertions(+)
diff --git a/Documentation/admin-guide/kernel-parameters.txt b/Documentation/admin-guide/kernel-parameters.txt
index 1bbfe73fcd6c..073e3023b515 100644
index 27ca3fbc47aa..5e3caff3fb49 100644
--- a/Documentation/admin-guide/kernel-parameters.txt
+++ b/Documentation/admin-guide/kernel-parameters.txt
@@ -2935,6 +2935,15 @@
@@ -2968,6 +2968,15 @@
nomsi [MSI] If the PCI_MSI kernel config parameter is
enabled, this kernel boot option can be used to
disable the use of MSI interrupts system-wide.
@ -65,19 +65,19 @@ index 1bbfe73fcd6c..073e3023b515 100644
+ [PCIE] Override missing PCIe ACS support for:
+ downstream
+ All downstream ports - full ACS capabilities
+ multfunction
+ All multifunction devices - multifunction ACS subset
+ multifunction
+ Add multifunction devices - multifunction ACS subset
+ id:nnnn:nnnn
+ Specfic device - full ACS capabilities
+ Specific device - full ACS capabilities
+ Specified as vid:did (vendor/device ID) in hex
noioapicquirk [APIC] Disable all boot interrupt quirks.
Safety option to keep boot IRQs enabled. This
should never be necessary.
diff --git a/drivers/pci/quirks.c b/drivers/pci/quirks.c
index 99eec22d99b7..7576c2b0c913 100644
index db82bef43b99..d338fdb7c402 100644
--- a/drivers/pci/quirks.c
+++ b/drivers/pci/quirks.c
@@ -3687,6 +3687,107 @@ static int __init pci_apply_final_quirks(void)
@@ -3695,6 +3695,106 @@ static int __init pci_apply_final_quirks(void)
fs_initcall_sync(pci_apply_final_quirks);
@ -121,7 +121,6 @@ index 99eec22d99b7..7576c2b0c913 100644
+ goto next;
+ }
+ acs_on_ids[max_acs_id].vendor = val;
+
+ p += strcspn(p, ":");
+ if (*p != ':') {
+ pr_warn("PCIe ACS invalid ID\n");
@ -166,17 +165,17 @@ index 99eec22d99b7..7576c2b0c913 100644
+ return 1;
+
+ switch (pci_pcie_type(dev)) {
+ case PCI_EXP_TYPE_DOWNSTREAM:
+ case PCI_EXP_TYPE_ROOT_PORT:
+ if (acs_on_downstream)
+ return 1;
+ break;
+ case PCI_EXP_TYPE_ENDPOINT:
+ case PCI_EXP_TYPE_UPSTREAM:
+ case PCI_EXP_TYPE_LEG_END:
+ case PCI_EXP_TYPE_RC_END:
+ if (acs_on_multifunction && dev->multifunction)
+ return 1;
+ case PCI_EXP_TYPE_DOWNSTREAM:
+ case PCI_EXP_TYPE_ROOT_PORT:
+ if (acs_on_downstream)
+ return 1;
+ break;
+ case PCI_EXP_TYPE_ENDPOINT:
+ case PCI_EXP_TYPE_UPSTREAM:
+ case PCI_EXP_TYPE_LEG_END:
+ case PCI_EXP_TYPE_RC_END:
+ if (acs_on_multifunction && dev->multifunction)
+ return 1;
+ }
+
+ return -ENOTTY;
@ -185,10 +184,10 @@ index 99eec22d99b7..7576c2b0c913 100644
/*
* Following are device-specific reset methods which can be used to
* reset a single function if other methods (e.g. FLR, PM D0->D3) are
@@ -4529,6 +4630,7 @@ static const struct pci_dev_acs_enabled {
{ 0x10df, 0x720, pci_quirk_mf_endpoint_acs }, /* Emulex Skyhawk-R */
/* Cavium ThunderX */
@@ -4527,6 +4627,7 @@ static const struct pci_dev_acs_enabled {
{ PCI_VENDOR_ID_CAVIUM, PCI_ANY_ID, pci_quirk_cavium_acs },
/* APM X-Gene */
{ PCI_VENDOR_ID_AMCC, 0xE004, pci_quirk_xgene_acs },
+ { PCI_ANY_ID, PCI_ANY_ID, pcie_acs_overrides },
{ 0 }
};