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Message-Id: <20211115165325.199788309@linuxfoundation.org>
Date:   Mon, 15 Nov 2021 18:04:38 +0100
From:   Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:     linux-kernel@...r.kernel.org
Cc:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        stable@...r.kernel.org,
        Pali Rohár <pali@...nel.org>,
        Marek Behún <kabel@...nel.org>,
        Lorenzo Pieralisi <lorenzo.pieralisi@....com>,
        Bjorn Helgaas <bhelgaas@...gle.com>
Subject: [PATCH 5.4 354/355] PCI: Add PCI_EXP_DEVCTL_PAYLOAD_* macros

From: Pali Rohár <pali@...nel.org>

commit 460275f124fb072dca218a6b43b6370eebbab20d upstream.

Define a macro PCI_EXP_DEVCTL_PAYLOAD_* for every possible Max Payload
Size in linux/pci_regs.h, in the same style as PCI_EXP_DEVCTL_READRQ_*.

Link: https://lore.kernel.org/r/20211005180952.6812-2-kabel@kernel.org
Signed-off-by: Pali Rohár <pali@...nel.org>
Signed-off-by: Marek Behún <kabel@...nel.org>
Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@....com>
Reviewed-by: Marek Behún <kabel@...nel.org>
Reviewed-by: Bjorn Helgaas <bhelgaas@...gle.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
---
 include/uapi/linux/pci_regs.h |    6 ++++++
 1 file changed, 6 insertions(+)

--- a/include/uapi/linux/pci_regs.h
+++ b/include/uapi/linux/pci_regs.h
@@ -502,6 +502,12 @@
 #define  PCI_EXP_DEVCTL_URRE	0x0008	/* Unsupported Request Reporting En. */
 #define  PCI_EXP_DEVCTL_RELAX_EN 0x0010 /* Enable relaxed ordering */
 #define  PCI_EXP_DEVCTL_PAYLOAD	0x00e0	/* Max_Payload_Size */
+#define  PCI_EXP_DEVCTL_PAYLOAD_128B 0x0000 /* 128 Bytes */
+#define  PCI_EXP_DEVCTL_PAYLOAD_256B 0x0020 /* 256 Bytes */
+#define  PCI_EXP_DEVCTL_PAYLOAD_512B 0x0040 /* 512 Bytes */
+#define  PCI_EXP_DEVCTL_PAYLOAD_1024B 0x0060 /* 1024 Bytes */
+#define  PCI_EXP_DEVCTL_PAYLOAD_2048B 0x0080 /* 2048 Bytes */
+#define  PCI_EXP_DEVCTL_PAYLOAD_4096B 0x00a0 /* 4096 Bytes */
 #define  PCI_EXP_DEVCTL_EXT_TAG	0x0100	/* Extended Tag Field Enable */
 #define  PCI_EXP_DEVCTL_PHANTOM	0x0200	/* Phantom Functions Enable */
 #define  PCI_EXP_DEVCTL_AUX_PME	0x0400	/* Auxiliary Power PM Enable */


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