1addd8e4be
Changes:
- Rebase onto v5.16.5
Links:
- kernel: 79c1f0e58b
846 lines
32 KiB
Diff
846 lines
32 KiB
Diff
From de28c3f38ae3ac2f21d239a3fe3a63ce2f6c72df Mon Sep 17 00:00:00 2001
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From: Tsuchiya Yuto <kitakar@gmail.com>
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Date: Tue, 29 Sep 2020 17:32:22 +0900
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Subject: [PATCH] mwifiex: pcie: add reset_wsid quirk for Surface 3
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This commit adds reset_wsid quirk and uses this quirk for Surface 3 on
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card reset.
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To reset mwifiex on Surface 3, it seems that calling the _DSM method
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exists in \_SB.WSID [1] device is required.
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On Surface 3, calling the _DSM method removes/re-probes the card by
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itself. So, need to place the reset function before performing FLR and
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skip performing any other reset-related works.
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Note that Surface Pro 3 also has the WSID device [2], but it seems to need
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more work. This commit only supports Surface 3 yet.
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[1] https://github.com/linux-surface/acpidumps/blob/05cba925f3a515f222acb5b3551a032ddde958fe/surface_3/dsdt.dsl#L11947-L12011
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[2] https://github.com/linux-surface/acpidumps/blob/05cba925f3a515f222acb5b3551a032ddde958fe/surface_pro_3/dsdt.dsl#L12164-L12216
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Signed-off-by: Tsuchiya Yuto <kitakar@gmail.com>
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Patchset: mwifiex
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---
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drivers/net/wireless/marvell/mwifiex/pcie.c | 10 +++
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.../wireless/marvell/mwifiex/pcie_quirks.c | 83 +++++++++++++++++++
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.../wireless/marvell/mwifiex/pcie_quirks.h | 6 ++
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3 files changed, 99 insertions(+)
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diff --git a/drivers/net/wireless/marvell/mwifiex/pcie.c b/drivers/net/wireless/marvell/mwifiex/pcie.c
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index c3f5583ea70d..3f5138008594 100644
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--- a/drivers/net/wireless/marvell/mwifiex/pcie.c
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+++ b/drivers/net/wireless/marvell/mwifiex/pcie.c
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@@ -2993,6 +2993,16 @@ static void mwifiex_pcie_card_reset_work(struct mwifiex_adapter *adapter)
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{
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struct pcie_service_card *card = adapter->card;
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+ /* On Surface 3, reset_wsid method removes then re-probes card by
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+ * itself. So, need to place it here and skip performing any other
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+ * reset-related works.
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+ */
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+ if (card->quirks & QUIRK_FW_RST_WSID_S3) {
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+ mwifiex_pcie_reset_wsid_quirk(card->dev);
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+ /* skip performing any other reset-related works */
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+ return;
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+ }
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+
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/* We can't afford to wait here; remove() might be waiting on us. If we
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* can't grab the device lock, maybe we'll get another chance later.
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*/
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diff --git a/drivers/net/wireless/marvell/mwifiex/pcie_quirks.c b/drivers/net/wireless/marvell/mwifiex/pcie_quirks.c
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index 0234cf3c2974..563dd0d5ac79 100644
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--- a/drivers/net/wireless/marvell/mwifiex/pcie_quirks.c
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+++ b/drivers/net/wireless/marvell/mwifiex/pcie_quirks.c
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@@ -15,10 +15,21 @@
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* this warranty disclaimer.
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*/
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+#include <linux/acpi.h>
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#include <linux/dmi.h>
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#include "pcie_quirks.h"
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+/* For reset_wsid quirk */
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+#define ACPI_WSID_PATH "\\_SB.WSID"
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+#define WSID_REV 0x0
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+#define WSID_FUNC_WIFI_PWR_OFF 0x1
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+#define WSID_FUNC_WIFI_PWR_ON 0x2
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+/* WSID _DSM UUID: "534ea3bf-fcc2-4e7a-908f-a13978f0c7ef" */
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+static const guid_t wsid_dsm_guid =
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+ GUID_INIT(0x534ea3bf, 0xfcc2, 0x4e7a,
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+ 0x90, 0x8f, 0xa1, 0x39, 0x78, 0xf0, 0xc7, 0xef);
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+
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/* quirk table based on DMI matching */
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static const struct dmi_system_id mwifiex_quirk_table[] = {
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{
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@@ -87,6 +98,14 @@ static const struct dmi_system_id mwifiex_quirk_table[] = {
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},
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.driver_data = (void *)QUIRK_FW_RST_D3COLD,
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},
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+ {
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+ .ident = "Surface 3",
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+ .matches = {
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+ DMI_EXACT_MATCH(DMI_SYS_VENDOR, "Microsoft Corporation"),
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+ DMI_EXACT_MATCH(DMI_PRODUCT_NAME, "Surface 3"),
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+ },
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+ .driver_data = (void *)QUIRK_FW_RST_WSID_S3,
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+ },
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{}
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};
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@@ -103,6 +122,9 @@ void mwifiex_initialize_quirks(struct pcie_service_card *card)
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dev_info(&pdev->dev, "no quirks enabled\n");
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if (card->quirks & QUIRK_FW_RST_D3COLD)
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dev_info(&pdev->dev, "quirk reset_d3cold enabled\n");
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+ if (card->quirks & QUIRK_FW_RST_WSID_S3)
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+ dev_info(&pdev->dev,
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+ "quirk reset_wsid for Surface 3 enabled\n");
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}
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static void mwifiex_pcie_set_power_d3cold(struct pci_dev *pdev)
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@@ -159,3 +181,64 @@ int mwifiex_pcie_reset_d3cold_quirk(struct pci_dev *pdev)
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return 0;
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}
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+
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+int mwifiex_pcie_reset_wsid_quirk(struct pci_dev *pdev)
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+{
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+ acpi_handle handle;
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+ union acpi_object *obj;
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+ acpi_status status;
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+
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+ dev_info(&pdev->dev, "Using reset_wsid quirk to perform FW reset\n");
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+
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+ status = acpi_get_handle(NULL, ACPI_WSID_PATH, &handle);
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+ if (ACPI_FAILURE(status)) {
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+ dev_err(&pdev->dev, "No ACPI handle for path %s\n",
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+ ACPI_WSID_PATH);
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+ return -ENODEV;
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+ }
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+
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+ if (!acpi_has_method(handle, "_DSM")) {
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+ dev_err(&pdev->dev, "_DSM method not found\n");
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+ return -ENODEV;
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+ }
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+
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+ if (!acpi_check_dsm(handle, &wsid_dsm_guid,
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+ WSID_REV, WSID_FUNC_WIFI_PWR_OFF)) {
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+ dev_err(&pdev->dev,
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+ "_DSM method doesn't support wifi power off func\n");
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+ return -ENODEV;
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+ }
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+
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+ if (!acpi_check_dsm(handle, &wsid_dsm_guid,
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+ WSID_REV, WSID_FUNC_WIFI_PWR_ON)) {
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+ dev_err(&pdev->dev,
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+ "_DSM method doesn't support wifi power on func\n");
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+ return -ENODEV;
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+ }
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+
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+ /* card will be removed immediately after this call on Surface 3 */
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+ dev_info(&pdev->dev, "turning wifi off...\n");
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+ obj = acpi_evaluate_dsm(handle, &wsid_dsm_guid,
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+ WSID_REV, WSID_FUNC_WIFI_PWR_OFF,
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+ NULL);
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+ if (!obj) {
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+ dev_err(&pdev->dev,
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+ "device _DSM execution failed for turning wifi off\n");
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+ return -EIO;
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+ }
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+ ACPI_FREE(obj);
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+
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+ /* card will be re-probed immediately after this call on Surface 3 */
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+ dev_info(&pdev->dev, "turning wifi on...\n");
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+ obj = acpi_evaluate_dsm(handle, &wsid_dsm_guid,
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+ WSID_REV, WSID_FUNC_WIFI_PWR_ON,
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+ NULL);
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+ if (!obj) {
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+ dev_err(&pdev->dev,
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+ "device _DSM execution failed for turning wifi on\n");
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+ return -EIO;
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+ }
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+ ACPI_FREE(obj);
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+
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+ return 0;
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+}
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diff --git a/drivers/net/wireless/marvell/mwifiex/pcie_quirks.h b/drivers/net/wireless/marvell/mwifiex/pcie_quirks.h
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index 8ec4176d698f..25370c5a4f59 100644
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--- a/drivers/net/wireless/marvell/mwifiex/pcie_quirks.h
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+++ b/drivers/net/wireless/marvell/mwifiex/pcie_quirks.h
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@@ -19,5 +19,11 @@
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#define QUIRK_FW_RST_D3COLD BIT(0)
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+/* Surface 3 and Surface Pro 3 have the same _DSM method but need to
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+ * be handled differently. Currently, only S3 is supported.
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+ */
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+#define QUIRK_FW_RST_WSID_S3 BIT(1)
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+
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void mwifiex_initialize_quirks(struct pcie_service_card *card);
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int mwifiex_pcie_reset_d3cold_quirk(struct pci_dev *pdev);
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+int mwifiex_pcie_reset_wsid_quirk(struct pci_dev *pdev);
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--
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2.35.1
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From 4387db1a49a5d01fde30eac2e31093dea1907343 Mon Sep 17 00:00:00 2001
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From: Tsuchiya Yuto <kitakar@gmail.com>
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Date: Wed, 30 Sep 2020 18:08:24 +0900
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Subject: [PATCH] mwifiex: pcie: (OEMB) add quirk for Surface 3 with broken DMI
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table
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(made referring to http://git.osdn.net/view?p=android-x86/kernel.git;a=commitdiff;h=18e2e857c57633b25b3b4120f212224a108cd883)
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On some Surface 3, the DMI table gets corrupted for unknown reasons
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and breaks existing DMI matching used for device-specific quirks.
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This commit adds the (broken) DMI info for the affected Surface 3.
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On affected systems, DMI info will look like this:
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$ grep . /sys/devices/virtual/dmi/id/{bios_vendor,board_name,board_vendor,\
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chassis_vendor,product_name,sys_vendor}
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/sys/devices/virtual/dmi/id/bios_vendor:American Megatrends Inc.
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/sys/devices/virtual/dmi/id/board_name:OEMB
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/sys/devices/virtual/dmi/id/board_vendor:OEMB
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/sys/devices/virtual/dmi/id/chassis_vendor:OEMB
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/sys/devices/virtual/dmi/id/product_name:OEMB
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/sys/devices/virtual/dmi/id/sys_vendor:OEMB
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Expected:
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$ grep . /sys/devices/virtual/dmi/id/{bios_vendor,board_name,board_vendor,\
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chassis_vendor,product_name,sys_vendor}
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/sys/devices/virtual/dmi/id/bios_vendor:American Megatrends Inc.
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/sys/devices/virtual/dmi/id/board_name:Surface 3
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/sys/devices/virtual/dmi/id/board_vendor:Microsoft Corporation
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/sys/devices/virtual/dmi/id/chassis_vendor:Microsoft Corporation
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/sys/devices/virtual/dmi/id/product_name:Surface 3
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/sys/devices/virtual/dmi/id/sys_vendor:Microsoft Corporation
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Signed-off-by: Tsuchiya Yuto <kitakar@gmail.com>
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Patchset: mwifiex
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---
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drivers/net/wireless/marvell/mwifiex/pcie_quirks.c | 9 +++++++++
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1 file changed, 9 insertions(+)
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diff --git a/drivers/net/wireless/marvell/mwifiex/pcie_quirks.c b/drivers/net/wireless/marvell/mwifiex/pcie_quirks.c
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index 563dd0d5ac79..32e2f000e57b 100644
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--- a/drivers/net/wireless/marvell/mwifiex/pcie_quirks.c
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+++ b/drivers/net/wireless/marvell/mwifiex/pcie_quirks.c
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@@ -106,6 +106,15 @@ static const struct dmi_system_id mwifiex_quirk_table[] = {
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},
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.driver_data = (void *)QUIRK_FW_RST_WSID_S3,
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},
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+ {
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+ .ident = "Surface 3",
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+ .matches = {
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+ DMI_EXACT_MATCH(DMI_BIOS_VENDOR, "American Megatrends Inc."),
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+ DMI_EXACT_MATCH(DMI_SYS_VENDOR, "OEMB"),
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+ DMI_EXACT_MATCH(DMI_PRODUCT_NAME, "OEMB"),
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+ },
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+ .driver_data = (void *)QUIRK_FW_RST_WSID_S3,
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+ },
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{}
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};
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--
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2.35.1
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From 34404bbe9fded98783f45e1242517f576f8f9592 Mon Sep 17 00:00:00 2001
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From: Tsuchiya Yuto <kitakar@gmail.com>
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Date: Sun, 4 Oct 2020 00:11:49 +0900
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Subject: [PATCH] mwifiex: pcie: disable bridge_d3 for Surface gen4+
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Currently, mwifiex fw will crash after suspend on recent kernel series.
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On Windows, it seems that the root port of wifi will never enter D3 state
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(stay on D0 state). And on Linux, disabling the D3 state for the
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bridge fixes fw crashing after suspend.
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This commit disables the D3 state of root port on driver initialization
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and fixes fw crashing after suspend.
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Signed-off-by: Tsuchiya Yuto <kitakar@gmail.com>
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Patchset: mwifiex
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---
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drivers/net/wireless/marvell/mwifiex/pcie.c | 7 +++++
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.../wireless/marvell/mwifiex/pcie_quirks.c | 27 +++++++++++++------
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.../wireless/marvell/mwifiex/pcie_quirks.h | 1 +
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3 files changed, 27 insertions(+), 8 deletions(-)
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diff --git a/drivers/net/wireless/marvell/mwifiex/pcie.c b/drivers/net/wireless/marvell/mwifiex/pcie.c
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index 3f5138008594..372dde99725c 100644
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--- a/drivers/net/wireless/marvell/mwifiex/pcie.c
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+++ b/drivers/net/wireless/marvell/mwifiex/pcie.c
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@@ -380,6 +380,7 @@ static int mwifiex_pcie_probe(struct pci_dev *pdev,
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const struct pci_device_id *ent)
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{
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struct pcie_service_card *card;
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+ struct pci_dev *parent_pdev = pci_upstream_bridge(pdev);
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int ret;
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pr_debug("info: vendor=0x%4.04X device=0x%4.04X rev=%d\n",
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@@ -421,6 +422,12 @@ static int mwifiex_pcie_probe(struct pci_dev *pdev,
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return -1;
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}
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+ /* disable bridge_d3 for Surface gen4+ devices to fix fw crashing
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+ * after suspend
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+ */
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+ if (card->quirks & QUIRK_NO_BRIDGE_D3)
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+ parent_pdev->bridge_d3 = false;
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+
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return 0;
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}
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diff --git a/drivers/net/wireless/marvell/mwifiex/pcie_quirks.c b/drivers/net/wireless/marvell/mwifiex/pcie_quirks.c
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index 32e2f000e57b..356401bab59c 100644
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--- a/drivers/net/wireless/marvell/mwifiex/pcie_quirks.c
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+++ b/drivers/net/wireless/marvell/mwifiex/pcie_quirks.c
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@@ -38,7 +38,8 @@ static const struct dmi_system_id mwifiex_quirk_table[] = {
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DMI_EXACT_MATCH(DMI_SYS_VENDOR, "Microsoft Corporation"),
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DMI_EXACT_MATCH(DMI_PRODUCT_NAME, "Surface Pro 4"),
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},
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- .driver_data = (void *)QUIRK_FW_RST_D3COLD,
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+ .driver_data = (void *)(QUIRK_FW_RST_D3COLD |
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+ QUIRK_NO_BRIDGE_D3),
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},
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{
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.ident = "Surface Pro 5",
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@@ -47,7 +48,8 @@ static const struct dmi_system_id mwifiex_quirk_table[] = {
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DMI_EXACT_MATCH(DMI_SYS_VENDOR, "Microsoft Corporation"),
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DMI_EXACT_MATCH(DMI_PRODUCT_SKU, "Surface_Pro_1796"),
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},
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- .driver_data = (void *)QUIRK_FW_RST_D3COLD,
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+ .driver_data = (void *)(QUIRK_FW_RST_D3COLD |
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+ QUIRK_NO_BRIDGE_D3),
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},
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{
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.ident = "Surface Pro 5 (LTE)",
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@@ -56,7 +58,8 @@ static const struct dmi_system_id mwifiex_quirk_table[] = {
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DMI_EXACT_MATCH(DMI_SYS_VENDOR, "Microsoft Corporation"),
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DMI_EXACT_MATCH(DMI_PRODUCT_SKU, "Surface_Pro_1807"),
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},
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- .driver_data = (void *)QUIRK_FW_RST_D3COLD,
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+ .driver_data = (void *)(QUIRK_FW_RST_D3COLD |
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+ QUIRK_NO_BRIDGE_D3),
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},
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{
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.ident = "Surface Pro 6",
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@@ -64,7 +67,8 @@ static const struct dmi_system_id mwifiex_quirk_table[] = {
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DMI_EXACT_MATCH(DMI_SYS_VENDOR, "Microsoft Corporation"),
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DMI_EXACT_MATCH(DMI_PRODUCT_NAME, "Surface Pro 6"),
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},
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- .driver_data = (void *)QUIRK_FW_RST_D3COLD,
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+ .driver_data = (void *)(QUIRK_FW_RST_D3COLD |
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+ QUIRK_NO_BRIDGE_D3),
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},
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{
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.ident = "Surface Book 1",
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@@ -72,7 +76,8 @@ static const struct dmi_system_id mwifiex_quirk_table[] = {
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DMI_EXACT_MATCH(DMI_SYS_VENDOR, "Microsoft Corporation"),
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DMI_EXACT_MATCH(DMI_PRODUCT_NAME, "Surface Book"),
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},
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- .driver_data = (void *)QUIRK_FW_RST_D3COLD,
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+ .driver_data = (void *)(QUIRK_FW_RST_D3COLD |
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+ QUIRK_NO_BRIDGE_D3),
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},
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{
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.ident = "Surface Book 2",
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@@ -80,7 +85,8 @@ static const struct dmi_system_id mwifiex_quirk_table[] = {
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DMI_EXACT_MATCH(DMI_SYS_VENDOR, "Microsoft Corporation"),
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DMI_EXACT_MATCH(DMI_PRODUCT_NAME, "Surface Book 2"),
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},
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- .driver_data = (void *)QUIRK_FW_RST_D3COLD,
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+ .driver_data = (void *)(QUIRK_FW_RST_D3COLD |
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+ QUIRK_NO_BRIDGE_D3),
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},
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{
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.ident = "Surface Laptop 1",
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@@ -88,7 +94,8 @@ static const struct dmi_system_id mwifiex_quirk_table[] = {
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DMI_EXACT_MATCH(DMI_SYS_VENDOR, "Microsoft Corporation"),
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DMI_EXACT_MATCH(DMI_PRODUCT_NAME, "Surface Laptop"),
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},
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- .driver_data = (void *)QUIRK_FW_RST_D3COLD,
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+ .driver_data = (void *)(QUIRK_FW_RST_D3COLD |
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+ QUIRK_NO_BRIDGE_D3),
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},
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{
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.ident = "Surface Laptop 2",
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@@ -96,7 +103,8 @@ static const struct dmi_system_id mwifiex_quirk_table[] = {
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DMI_EXACT_MATCH(DMI_SYS_VENDOR, "Microsoft Corporation"),
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DMI_EXACT_MATCH(DMI_PRODUCT_NAME, "Surface Laptop 2"),
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},
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- .driver_data = (void *)QUIRK_FW_RST_D3COLD,
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+ .driver_data = (void *)(QUIRK_FW_RST_D3COLD |
|
|
+ QUIRK_NO_BRIDGE_D3),
|
|
},
|
|
{
|
|
.ident = "Surface 3",
|
|
@@ -134,6 +142,9 @@ void mwifiex_initialize_quirks(struct pcie_service_card *card)
|
|
if (card->quirks & QUIRK_FW_RST_WSID_S3)
|
|
dev_info(&pdev->dev,
|
|
"quirk reset_wsid for Surface 3 enabled\n");
|
|
+ if (card->quirks & QUIRK_NO_BRIDGE_D3)
|
|
+ dev_info(&pdev->dev,
|
|
+ "quirk no_brigde_d3 enabled\n");
|
|
}
|
|
|
|
static void mwifiex_pcie_set_power_d3cold(struct pci_dev *pdev)
|
|
diff --git a/drivers/net/wireless/marvell/mwifiex/pcie_quirks.h b/drivers/net/wireless/marvell/mwifiex/pcie_quirks.h
|
|
index 25370c5a4f59..a1de111ad1db 100644
|
|
--- a/drivers/net/wireless/marvell/mwifiex/pcie_quirks.h
|
|
+++ b/drivers/net/wireless/marvell/mwifiex/pcie_quirks.h
|
|
@@ -23,6 +23,7 @@
|
|
* be handled differently. Currently, only S3 is supported.
|
|
*/
|
|
#define QUIRK_FW_RST_WSID_S3 BIT(1)
|
|
+#define QUIRK_NO_BRIDGE_D3 BIT(2)
|
|
|
|
void mwifiex_initialize_quirks(struct pcie_service_card *card);
|
|
int mwifiex_pcie_reset_d3cold_quirk(struct pci_dev *pdev);
|
|
--
|
|
2.35.1
|
|
|
|
From d7422bd87474bae2fe3b42b11c8873cfe6ed09e3 Mon Sep 17 00:00:00 2001
|
|
From: =?UTF-8?q?Jonas=20Dre=C3=9Fler?= <verdre@v0yd.nl>
|
|
Date: Tue, 3 Nov 2020 13:28:04 +0100
|
|
Subject: [PATCH] mwifiex: Add quirk resetting the PCI bridge on MS Surface
|
|
devices
|
|
|
|
The most recent firmware of the 88W8897 card reports a hardcoded LTR
|
|
value to the system during initialization, probably as an (unsuccessful)
|
|
attempt of the developers to fix firmware crashes. This LTR value
|
|
prevents most of the Microsoft Surface devices from entering deep
|
|
powersaving states (either platform C-State 10 or S0ix state), because
|
|
the exit latency of that state would be higher than what the card can
|
|
tolerate.
|
|
|
|
Turns out the card works just the same (including the firmware crashes)
|
|
no matter if that hardcoded LTR value is reported or not, so it's kind
|
|
of useless and only prevents us from saving power.
|
|
|
|
To get rid of those hardcoded LTR reports, it's possible to reset the
|
|
PCI bridge device after initializing the cards firmware. I'm not exactly
|
|
sure why that works, maybe the power management subsystem of the PCH
|
|
resets its stored LTR values when doing a function level reset of the
|
|
bridge device. Doing the reset once after starting the wifi firmware
|
|
works very well, probably because the firmware only reports that LTR
|
|
value a single time during firmware startup.
|
|
|
|
Patchset: mwifiex
|
|
---
|
|
drivers/net/wireless/marvell/mwifiex/pcie.c | 12 +++++++++
|
|
.../wireless/marvell/mwifiex/pcie_quirks.c | 26 +++++++++++++------
|
|
.../wireless/marvell/mwifiex/pcie_quirks.h | 1 +
|
|
3 files changed, 31 insertions(+), 8 deletions(-)
|
|
|
|
diff --git a/drivers/net/wireless/marvell/mwifiex/pcie.c b/drivers/net/wireless/marvell/mwifiex/pcie.c
|
|
index 372dde99725c..586c79dc0a98 100644
|
|
--- a/drivers/net/wireless/marvell/mwifiex/pcie.c
|
|
+++ b/drivers/net/wireless/marvell/mwifiex/pcie.c
|
|
@@ -1781,9 +1781,21 @@ mwifiex_pcie_send_boot_cmd(struct mwifiex_adapter *adapter, struct sk_buff *skb)
|
|
static int mwifiex_pcie_init_fw_port(struct mwifiex_adapter *adapter)
|
|
{
|
|
struct pcie_service_card *card = adapter->card;
|
|
+ struct pci_dev *pdev = card->dev;
|
|
+ struct pci_dev *parent_pdev = pci_upstream_bridge(pdev);
|
|
const struct mwifiex_pcie_card_reg *reg = card->pcie.reg;
|
|
int tx_wrap = card->txbd_wrptr & reg->tx_wrap_mask;
|
|
|
|
+ /* Trigger a function level reset of the PCI bridge device, this makes
|
|
+ * the firmware of PCIe 88W8897 cards stop reporting a fixed LTR value
|
|
+ * that prevents the system from entering package C10 and S0ix powersaving
|
|
+ * states.
|
|
+ * We need to do it here because it must happen after firmware
|
|
+ * initialization and this function is called after that is done.
|
|
+ */
|
|
+ if (card->quirks & QUIRK_DO_FLR_ON_BRIDGE)
|
|
+ pci_reset_function(parent_pdev);
|
|
+
|
|
/* Write the RX ring read pointer in to reg->rx_rdptr */
|
|
if (mwifiex_write_reg(adapter, reg->rx_rdptr, card->rxbd_rdptr |
|
|
tx_wrap)) {
|
|
diff --git a/drivers/net/wireless/marvell/mwifiex/pcie_quirks.c b/drivers/net/wireless/marvell/mwifiex/pcie_quirks.c
|
|
index 356401bab59c..6437f067d07a 100644
|
|
--- a/drivers/net/wireless/marvell/mwifiex/pcie_quirks.c
|
|
+++ b/drivers/net/wireless/marvell/mwifiex/pcie_quirks.c
|
|
@@ -39,7 +39,8 @@ static const struct dmi_system_id mwifiex_quirk_table[] = {
|
|
DMI_EXACT_MATCH(DMI_PRODUCT_NAME, "Surface Pro 4"),
|
|
},
|
|
.driver_data = (void *)(QUIRK_FW_RST_D3COLD |
|
|
- QUIRK_NO_BRIDGE_D3),
|
|
+ QUIRK_NO_BRIDGE_D3 |
|
|
+ QUIRK_DO_FLR_ON_BRIDGE),
|
|
},
|
|
{
|
|
.ident = "Surface Pro 5",
|
|
@@ -49,7 +50,8 @@ static const struct dmi_system_id mwifiex_quirk_table[] = {
|
|
DMI_EXACT_MATCH(DMI_PRODUCT_SKU, "Surface_Pro_1796"),
|
|
},
|
|
.driver_data = (void *)(QUIRK_FW_RST_D3COLD |
|
|
- QUIRK_NO_BRIDGE_D3),
|
|
+ QUIRK_NO_BRIDGE_D3 |
|
|
+ QUIRK_DO_FLR_ON_BRIDGE),
|
|
},
|
|
{
|
|
.ident = "Surface Pro 5 (LTE)",
|
|
@@ -59,7 +61,8 @@ static const struct dmi_system_id mwifiex_quirk_table[] = {
|
|
DMI_EXACT_MATCH(DMI_PRODUCT_SKU, "Surface_Pro_1807"),
|
|
},
|
|
.driver_data = (void *)(QUIRK_FW_RST_D3COLD |
|
|
- QUIRK_NO_BRIDGE_D3),
|
|
+ QUIRK_NO_BRIDGE_D3 |
|
|
+ QUIRK_DO_FLR_ON_BRIDGE),
|
|
},
|
|
{
|
|
.ident = "Surface Pro 6",
|
|
@@ -68,7 +71,8 @@ static const struct dmi_system_id mwifiex_quirk_table[] = {
|
|
DMI_EXACT_MATCH(DMI_PRODUCT_NAME, "Surface Pro 6"),
|
|
},
|
|
.driver_data = (void *)(QUIRK_FW_RST_D3COLD |
|
|
- QUIRK_NO_BRIDGE_D3),
|
|
+ QUIRK_NO_BRIDGE_D3 |
|
|
+ QUIRK_DO_FLR_ON_BRIDGE),
|
|
},
|
|
{
|
|
.ident = "Surface Book 1",
|
|
@@ -77,7 +81,8 @@ static const struct dmi_system_id mwifiex_quirk_table[] = {
|
|
DMI_EXACT_MATCH(DMI_PRODUCT_NAME, "Surface Book"),
|
|
},
|
|
.driver_data = (void *)(QUIRK_FW_RST_D3COLD |
|
|
- QUIRK_NO_BRIDGE_D3),
|
|
+ QUIRK_NO_BRIDGE_D3 |
|
|
+ QUIRK_DO_FLR_ON_BRIDGE),
|
|
},
|
|
{
|
|
.ident = "Surface Book 2",
|
|
@@ -86,7 +91,8 @@ static const struct dmi_system_id mwifiex_quirk_table[] = {
|
|
DMI_EXACT_MATCH(DMI_PRODUCT_NAME, "Surface Book 2"),
|
|
},
|
|
.driver_data = (void *)(QUIRK_FW_RST_D3COLD |
|
|
- QUIRK_NO_BRIDGE_D3),
|
|
+ QUIRK_NO_BRIDGE_D3 |
|
|
+ QUIRK_DO_FLR_ON_BRIDGE),
|
|
},
|
|
{
|
|
.ident = "Surface Laptop 1",
|
|
@@ -95,7 +101,8 @@ static const struct dmi_system_id mwifiex_quirk_table[] = {
|
|
DMI_EXACT_MATCH(DMI_PRODUCT_NAME, "Surface Laptop"),
|
|
},
|
|
.driver_data = (void *)(QUIRK_FW_RST_D3COLD |
|
|
- QUIRK_NO_BRIDGE_D3),
|
|
+ QUIRK_NO_BRIDGE_D3 |
|
|
+ QUIRK_DO_FLR_ON_BRIDGE),
|
|
},
|
|
{
|
|
.ident = "Surface Laptop 2",
|
|
@@ -104,7 +111,8 @@ static const struct dmi_system_id mwifiex_quirk_table[] = {
|
|
DMI_EXACT_MATCH(DMI_PRODUCT_NAME, "Surface Laptop 2"),
|
|
},
|
|
.driver_data = (void *)(QUIRK_FW_RST_D3COLD |
|
|
- QUIRK_NO_BRIDGE_D3),
|
|
+ QUIRK_NO_BRIDGE_D3 |
|
|
+ QUIRK_DO_FLR_ON_BRIDGE),
|
|
},
|
|
{
|
|
.ident = "Surface 3",
|
|
@@ -145,6 +153,8 @@ void mwifiex_initialize_quirks(struct pcie_service_card *card)
|
|
if (card->quirks & QUIRK_NO_BRIDGE_D3)
|
|
dev_info(&pdev->dev,
|
|
"quirk no_brigde_d3 enabled\n");
|
|
+ if (card->quirks & QUIRK_DO_FLR_ON_BRIDGE)
|
|
+ dev_info(&pdev->dev, "quirk do_flr_on_bridge enabled\n");
|
|
}
|
|
|
|
static void mwifiex_pcie_set_power_d3cold(struct pci_dev *pdev)
|
|
diff --git a/drivers/net/wireless/marvell/mwifiex/pcie_quirks.h b/drivers/net/wireless/marvell/mwifiex/pcie_quirks.h
|
|
index a1de111ad1db..0e429779bb04 100644
|
|
--- a/drivers/net/wireless/marvell/mwifiex/pcie_quirks.h
|
|
+++ b/drivers/net/wireless/marvell/mwifiex/pcie_quirks.h
|
|
@@ -24,6 +24,7 @@
|
|
*/
|
|
#define QUIRK_FW_RST_WSID_S3 BIT(1)
|
|
#define QUIRK_NO_BRIDGE_D3 BIT(2)
|
|
+#define QUIRK_DO_FLR_ON_BRIDGE BIT(3)
|
|
|
|
void mwifiex_initialize_quirks(struct pcie_service_card *card);
|
|
int mwifiex_pcie_reset_d3cold_quirk(struct pci_dev *pdev);
|
|
--
|
|
2.35.1
|
|
|
|
From 076580c216b98bcc9cd7b02e0c86ee1076541e77 Mon Sep 17 00:00:00 2001
|
|
From: =?UTF-8?q?Jonas=20Dre=C3=9Fler?= <verdre@v0yd.nl>
|
|
Date: Thu, 25 Mar 2021 11:33:02 +0100
|
|
Subject: [PATCH] Bluetooth: btusb: Lower passive lescan interval on Marvell
|
|
88W8897
|
|
|
|
The Marvell 88W8897 combined wifi and bluetooth card (pcie+usb version)
|
|
is used in a lot of Microsoft Surface devices, and all those devices
|
|
suffer from very low 2.4GHz wifi connection speeds while bluetooth is
|
|
enabled. The reason for that is that the default passive scanning
|
|
interval for Bluetooth Low Energy devices is quite high in Linux
|
|
(interval of 60 msec and scan window of 30 msec, see hci_core.c), and
|
|
the Marvell chip is known for its bad bt+wifi coexisting performance.
|
|
|
|
So decrease that passive scan interval and make the scan window shorter
|
|
on this particular device to allow for spending more time transmitting
|
|
wifi signals: The new scan interval is 250 msec (0x190 * 0.625 msec) and
|
|
the new scan window is 6.25 msec (0xa * 0,625 msec).
|
|
|
|
This change has a very large impact on the 2.4GHz wifi speeds and gets
|
|
it up to performance comparable with the Windows driver, which seems to
|
|
apply a similar quirk.
|
|
|
|
The interval and window length were tested and found to work very well
|
|
with a lot of Bluetooth Low Energy devices, including the Surface Pen, a
|
|
Bluetooth Speaker and two modern Bluetooth headphones. All devices were
|
|
discovered immediately after turning them on. Even lower values were
|
|
also tested, but they introduced longer delays until devices get
|
|
discovered.
|
|
|
|
Patchset: mwifiex
|
|
---
|
|
drivers/bluetooth/btusb.c | 15 +++++++++++++++
|
|
1 file changed, 15 insertions(+)
|
|
|
|
diff --git a/drivers/bluetooth/btusb.c b/drivers/bluetooth/btusb.c
|
|
index ea72afb7abea..dc0d1d8e0daa 100644
|
|
--- a/drivers/bluetooth/btusb.c
|
|
+++ b/drivers/bluetooth/btusb.c
|
|
@@ -61,6 +61,7 @@ static struct usb_driver btusb_driver;
|
|
#define BTUSB_QCA_WCN6855 0x1000000
|
|
#define BTUSB_INTEL_BROKEN_SHUTDOWN_LED 0x2000000
|
|
#define BTUSB_INTEL_BROKEN_INITIAL_NCMD 0x4000000
|
|
+#define BTUSB_LOWER_LESCAN_INTERVAL 0x8000000
|
|
|
|
static const struct usb_device_id btusb_table[] = {
|
|
/* Generic Bluetooth USB device */
|
|
@@ -375,6 +376,7 @@ static const struct usb_device_id blacklist_table[] = {
|
|
{ USB_DEVICE(0x1286, 0x2044), .driver_info = BTUSB_MARVELL },
|
|
{ USB_DEVICE(0x1286, 0x2046), .driver_info = BTUSB_MARVELL },
|
|
{ USB_DEVICE(0x1286, 0x204e), .driver_info = BTUSB_MARVELL },
|
|
+ { USB_DEVICE(0x1286, 0x204c), .driver_info = BTUSB_LOWER_LESCAN_INTERVAL },
|
|
|
|
/* Intel Bluetooth devices */
|
|
{ USB_DEVICE(0x8087, 0x0025), .driver_info = BTUSB_INTEL_COMBINED },
|
|
@@ -3908,6 +3910,19 @@ static int btusb_probe(struct usb_interface *intf,
|
|
if (id->driver_info & BTUSB_MARVELL)
|
|
hdev->set_bdaddr = btusb_set_bdaddr_marvell;
|
|
|
|
+ /* The Marvell 88W8897 combined wifi and bluetooth card is known for
|
|
+ * very bad bt+wifi coexisting performance.
|
|
+ *
|
|
+ * Decrease the passive BT Low Energy scan interval a bit
|
|
+ * (0x0190 * 0.625 msec = 250 msec) and make the scan window shorter
|
|
+ * (0x000a * 0,625 msec = 6.25 msec). This allows for significantly
|
|
+ * higher wifi throughput while passively scanning for BT LE devices.
|
|
+ */
|
|
+ if (id->driver_info & BTUSB_LOWER_LESCAN_INTERVAL) {
|
|
+ hdev->le_scan_interval = 0x0190;
|
|
+ hdev->le_scan_window = 0x000a;
|
|
+ }
|
|
+
|
|
if (IS_ENABLED(CONFIG_BT_HCIBTUSB_MTK) &&
|
|
(id->driver_info & BTUSB_MEDIATEK)) {
|
|
hdev->setup = btusb_mtk_setup;
|
|
--
|
|
2.35.1
|
|
|
|
From 95ad8001965918ed711cd63e9ed15859073c7634 Mon Sep 17 00:00:00 2001
|
|
From: =?UTF-8?q?Jonas=20Dre=C3=9Fler?= <verdre@v0yd.nl>
|
|
Date: Tue, 10 Nov 2020 12:49:56 +0100
|
|
Subject: [PATCH] mwifiex: Use non-posted PCI register writes
|
|
|
|
On the 88W8897 card it's very important the TX ring write pointer is
|
|
updated correctly to its new value before setting the TX ready
|
|
interrupt, otherwise the firmware appears to crash (probably because
|
|
it's trying to DMA-read from the wrong place).
|
|
|
|
Since PCI uses "posted writes" when writing to a register, it's not
|
|
guaranteed that a write will happen immediately. That means the pointer
|
|
might be outdated when setting the TX ready interrupt, leading to
|
|
firmware crashes especially when ASPM L1 and L1 substates are enabled
|
|
(because of the higher link latency, the write will probably take
|
|
longer).
|
|
|
|
So fix those firmware crashes by always forcing non-posted writes. We do
|
|
that by simply reading back the register after writing it, just as a lot
|
|
of other drivers do.
|
|
|
|
There are two reproducers that are fixed with this patch:
|
|
|
|
1) During rx/tx traffic and with ASPM L1 substates enabled (the enabled
|
|
substates are platform dependent), the firmware crashes and eventually a
|
|
command timeout appears in the logs. That crash is fixed by using a
|
|
non-posted write in mwifiex_pcie_send_data().
|
|
|
|
2) When sending lots of commands to the card, waking it up from sleep in
|
|
very quick intervals, the firmware eventually crashes. That crash
|
|
appears to be fixed by some other non-posted write included here.
|
|
|
|
Patchset: mwifiex
|
|
---
|
|
drivers/net/wireless/marvell/mwifiex/pcie.c | 6 ++++++
|
|
1 file changed, 6 insertions(+)
|
|
|
|
diff --git a/drivers/net/wireless/marvell/mwifiex/pcie.c b/drivers/net/wireless/marvell/mwifiex/pcie.c
|
|
index 586c79dc0a98..f87bc9bdfba7 100644
|
|
--- a/drivers/net/wireless/marvell/mwifiex/pcie.c
|
|
+++ b/drivers/net/wireless/marvell/mwifiex/pcie.c
|
|
@@ -238,6 +238,12 @@ static int mwifiex_write_reg(struct mwifiex_adapter *adapter, int reg, u32 data)
|
|
|
|
iowrite32(data, card->pci_mmap1 + reg);
|
|
|
|
+ /* Do a read-back, which makes the write non-posted, ensuring the
|
|
+ * completion before returning.
|
|
+ * The firmware of the 88W8897 card is buggy and this avoids crashes.
|
|
+ */
|
|
+ ioread32(card->pci_mmap1 + reg);
|
|
+
|
|
return 0;
|
|
}
|
|
|
|
--
|
|
2.35.1
|
|
|
|
From 2747c0e1b2bbdca151fa76a35d69290eccefae80 Mon Sep 17 00:00:00 2001
|
|
From: =?UTF-8?q?Jonas=20Dre=C3=9Fler?= <verdre@v0yd.nl>
|
|
Date: Tue, 13 Apr 2021 14:23:05 +0200
|
|
Subject: [PATCH] mwifiex: Add quirk to disable deep sleep with certain
|
|
hardware revision
|
|
|
|
The 88W8897 pcie card with the hardware revision 20 apparently has a
|
|
hardware issue where the card wakes up from deep sleep randomly and very
|
|
often, somewhat depending on the card activity, maybe the hardware has a
|
|
floating wakeup pin or something.
|
|
|
|
Those continuous wakeups prevent the card from entering host sleep when
|
|
the computer suspends. And because the host won't answer to events from
|
|
the card anymore while it's suspended, the firmwares internal
|
|
powersaving state machine seems to get confused and the card can't sleep
|
|
anymore at all after that.
|
|
|
|
Since we can't work around that hardware bug in the firmware, let's
|
|
get the hardware revision string from the firmware and match it with
|
|
known bad revisions. Then disable auto deep sleep for those revisions,
|
|
which makes sure we no longer get those spurious wakeups.
|
|
|
|
Patchset: mwifiex
|
|
---
|
|
drivers/net/wireless/marvell/mwifiex/main.c | 14 ++++++++++++++
|
|
drivers/net/wireless/marvell/mwifiex/main.h | 1 +
|
|
.../net/wireless/marvell/mwifiex/sta_cmdresp.c | 16 ++++++++++++++++
|
|
3 files changed, 31 insertions(+)
|
|
|
|
diff --git a/drivers/net/wireless/marvell/mwifiex/main.c b/drivers/net/wireless/marvell/mwifiex/main.c
|
|
index 19b996c6a260..5ab2ad4c7006 100644
|
|
--- a/drivers/net/wireless/marvell/mwifiex/main.c
|
|
+++ b/drivers/net/wireless/marvell/mwifiex/main.c
|
|
@@ -226,6 +226,19 @@ static int mwifiex_process_rx(struct mwifiex_adapter *adapter)
|
|
return 0;
|
|
}
|
|
|
|
+static void maybe_quirk_fw_disable_ds(struct mwifiex_adapter *adapter)
|
|
+{
|
|
+ struct mwifiex_private *priv = mwifiex_get_priv(adapter, MWIFIEX_BSS_ROLE_STA);
|
|
+ struct mwifiex_ver_ext ver_ext;
|
|
+
|
|
+ set_bit(MWIFIEX_IS_REQUESTING_FW_VEREXT, &adapter->work_flags);
|
|
+
|
|
+ memset(&ver_ext, 0, sizeof(ver_ext));
|
|
+ ver_ext.version_str_sel = 1;
|
|
+ mwifiex_send_cmd(priv, HostCmd_CMD_VERSION_EXT,
|
|
+ HostCmd_ACT_GEN_GET, 0, &ver_ext, false);
|
|
+}
|
|
+
|
|
/*
|
|
* The main process.
|
|
*
|
|
@@ -356,6 +369,7 @@ int mwifiex_main_process(struct mwifiex_adapter *adapter)
|
|
if (adapter->hw_status == MWIFIEX_HW_STATUS_INIT_DONE) {
|
|
adapter->hw_status = MWIFIEX_HW_STATUS_READY;
|
|
mwifiex_init_fw_complete(adapter);
|
|
+ maybe_quirk_fw_disable_ds(adapter);
|
|
}
|
|
}
|
|
|
|
diff --git a/drivers/net/wireless/marvell/mwifiex/main.h b/drivers/net/wireless/marvell/mwifiex/main.h
|
|
index 90012cbcfd15..1e829d84b1f6 100644
|
|
--- a/drivers/net/wireless/marvell/mwifiex/main.h
|
|
+++ b/drivers/net/wireless/marvell/mwifiex/main.h
|
|
@@ -524,6 +524,7 @@ enum mwifiex_adapter_work_flags {
|
|
MWIFIEX_IS_SUSPENDED,
|
|
MWIFIEX_IS_HS_CONFIGURED,
|
|
MWIFIEX_IS_HS_ENABLING,
|
|
+ MWIFIEX_IS_REQUESTING_FW_VEREXT,
|
|
};
|
|
|
|
struct mwifiex_band_config {
|
|
diff --git a/drivers/net/wireless/marvell/mwifiex/sta_cmdresp.c b/drivers/net/wireless/marvell/mwifiex/sta_cmdresp.c
|
|
index 6b5d35d9e69f..8e49ebca1847 100644
|
|
--- a/drivers/net/wireless/marvell/mwifiex/sta_cmdresp.c
|
|
+++ b/drivers/net/wireless/marvell/mwifiex/sta_cmdresp.c
|
|
@@ -708,6 +708,22 @@ static int mwifiex_ret_ver_ext(struct mwifiex_private *priv,
|
|
{
|
|
struct host_cmd_ds_version_ext *ver_ext = &resp->params.verext;
|
|
|
|
+ if (test_and_clear_bit(MWIFIEX_IS_REQUESTING_FW_VEREXT, &priv->adapter->work_flags)) {
|
|
+ if (strncmp(ver_ext->version_str, "ChipRev:20, BB:9b(10.00), RF:40(21)", 128) == 0) {
|
|
+ struct mwifiex_ds_auto_ds auto_ds = {
|
|
+ .auto_ds = DEEP_SLEEP_OFF,
|
|
+ };
|
|
+
|
|
+ mwifiex_dbg(priv->adapter, MSG,
|
|
+ "Bad HW revision detected, disabling deep sleep\n");
|
|
+
|
|
+ mwifiex_send_cmd(priv, HostCmd_CMD_802_11_PS_MODE_ENH,
|
|
+ DIS_AUTO_PS, BITMAP_AUTO_DS, &auto_ds, false);
|
|
+ }
|
|
+
|
|
+ return 0;
|
|
+ }
|
|
+
|
|
if (version_ext) {
|
|
version_ext->version_str_sel = ver_ext->version_str_sel;
|
|
memcpy(version_ext->version_str, ver_ext->version_str,
|
|
--
|
|
2.35.1
|
|
|
|
From 24b206a7c9234d884ad40087e5abcbbc9591d5d7 Mon Sep 17 00:00:00 2001
|
|
From: =?UTF-8?q?Jonas=20Dre=C3=9Fler?= <verdre@v0yd.nl>
|
|
Date: Tue, 13 Apr 2021 12:57:41 +0200
|
|
Subject: [PATCH] mwifiex: Ignore BTCOEX events from the firmware
|
|
|
|
The firmware of the pcie 88W8897 chip sends those events very
|
|
unreliably, which means we sometimes end up actually capping the window
|
|
size while bluetooth is disabled, artifically limiting wifi speeds even
|
|
though it's not needed.
|
|
|
|
Since we can't fix the firmware, let's just ignore those events, it
|
|
seems that the Windows driver also doesn't change the rx/tx block ack
|
|
buffer sizes when bluetooth gets enabled or disabled, so this is
|
|
consistent with the Windows driver.
|
|
|
|
Patchset: mwifiex
|
|
---
|
|
drivers/net/wireless/marvell/mwifiex/sta_event.c | 4 +---
|
|
1 file changed, 1 insertion(+), 3 deletions(-)
|
|
|
|
diff --git a/drivers/net/wireless/marvell/mwifiex/sta_event.c b/drivers/net/wireless/marvell/mwifiex/sta_event.c
|
|
index 2b2e6e0166e1..e9e2d4b86acb 100644
|
|
--- a/drivers/net/wireless/marvell/mwifiex/sta_event.c
|
|
+++ b/drivers/net/wireless/marvell/mwifiex/sta_event.c
|
|
@@ -1061,9 +1061,7 @@ int mwifiex_process_sta_event(struct mwifiex_private *priv)
|
|
adapter->event_skb);
|
|
break;
|
|
case EVENT_BT_COEX_WLAN_PARA_CHANGE:
|
|
- dev_dbg(adapter->dev, "EVENT: BT coex wlan param update\n");
|
|
- mwifiex_bt_coex_wlan_param_update_event(priv,
|
|
- adapter->event_skb);
|
|
+ dev_dbg(adapter->dev, "EVENT: ignoring BT coex wlan param update\n");
|
|
break;
|
|
case EVENT_RXBA_SYNC:
|
|
dev_dbg(adapter->dev, "EVENT: RXBA_SYNC\n");
|
|
--
|
|
2.35.1
|
|
|