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mei: me: disable mei interface on Mehlow server platforms

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For SPS firmware versions 5.0 and newer the way detection has changed.
The detection is done now via PCI_CFG_HFS_3 register.
To prevent conflict the previous method will get sps_4 suffix
Disable both CNP_H and CNP_H_3 interfaces. CNP_H_3 requires
a separate configuration as it doesn't support DMA.

Cc: <stable@vger.kernel.org>
Signed-off-by: Tomas Winkler <tomas.winkler@intel.com>
Link: https://lore.kernel.org/r/20200619165121.2145330-1-tomas.winkler@intel.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Tomas Winkler
2020-06-19 19:51:15 +03:00
committed by Greg Kroah-Hartman
parent d35d3660e0
commit f76d77f50b
4 changed files with 73 additions and 18 deletions
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13
drivers/misc/mei/hw-me.h
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@@ -1,6 +1,6 @@
/* SPDX-License-Identifier: GPL-2.0 */
/*
* Copyright (c) 2012-2019, Intel Corporation. All rights reserved.
* Copyright (c) 2012-2020, Intel Corporation. All rights reserved.
* Intel Management Engine Interface (Intel MEI) Linux driver
*/
@@ -76,11 +76,14 @@ struct mei_me_hw {
* with quirk for Node Manager exclusion.
* @MEI_ME_PCH8_CFG: Platform Controller Hub Gen8 and newer
* client platforms.
* @MEI_ME_PCH8_SPS_CFG: Platform Controller Hub Gen8 and newer
* @MEI_ME_PCH8_SPS_4_CFG: Platform Controller Hub Gen8 and newer
* servers platforms with quirk for
* SPS firmware exclusion.
* @MEI_ME_PCH12_CFG: Platform Controller Hub Gen12 and newer
* @MEI_ME_PCH12_SPS_CFG: Platform Controller Hub Gen12 and newer
* @MEI_ME_PCH12_SPS_4_CFG:Platform Controller Hub Gen12 up to 4.0
* servers platforms with quirk for
* SPS firmware exclusion.
* @MEI_ME_PCH12_SPS_CFG: Platform Controller Hub Gen12 5.0 and newer
* servers platforms with quirk for
* SPS firmware exclusion.
* @MEI_ME_PCH15_CFG: Platform Controller Hub Gen15 and newer
@@ -94,9 +97,11 @@ enum mei_cfg_idx {
MEI_ME_PCH7_CFG,
MEI_ME_PCH_CPT_PBG_CFG,
MEI_ME_PCH8_CFG,
MEI_ME_PCH8_SPS_CFG,
MEI_ME_PCH8_SPS_4_CFG,
MEI_ME_PCH12_CFG,
MEI_ME_PCH12_SPS_4_CFG,
MEI_ME_PCH12_SPS_CFG,
MEI_ME_PCH12_SPS_NODMA_CFG,
MEI_ME_PCH15_CFG,
MEI_ME_NUM_CFG,
};