From: "Pali Rohár" <pali@kernel.org>
To: Bjorn Helgaas <bhelgaas@google.com>
Cc: linux-pci@vger.kernel.org, linux-kernel@vger.kernel.org
Subject: [PATCH] PCI: Add PCI_EXP_DEVCTL_PAYLOAD_* macros
Date: Mon, 12 Apr 2021 14:46:02 +0200 [thread overview]
Message-ID: <20210412124602.25762-1-pali@kernel.org> (raw)
Define new PCI_EXP_DEVCTL_PAYLOAD_* macros in linux/pci_regs.h header file
for Max Payload Size. Macros are defined in the same style as existing
macros PCI_EXP_DEVCTL_READRQ_* macros.
Signed-off-by: Pali Rohár <pali@kernel.org>
---
include/uapi/linux/pci_regs.h | 6 ++++++
1 file changed, 6 insertions(+)
diff --git a/include/uapi/linux/pci_regs.h b/include/uapi/linux/pci_regs.h
index e709ae8235e7..8f1b15eea53e 100644
--- a/include/uapi/linux/pci_regs.h
+++ b/include/uapi/linux/pci_regs.h
@@ -504,6 +504,12 @@
#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 */
--
2.20.1
next reply other threads:[~2021-04-12 12:46 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-04-12 12:46 Pali Rohár [this message]
2021-04-12 19:27 ` [PATCH] PCI: Add PCI_EXP_DEVCTL_PAYLOAD_* macros Bjorn Helgaas
2021-04-13 8:39 ` Pali Rohár
2021-04-14 20:23 ` Bjorn Helgaas
2021-04-14 20:24 ` Pali Rohár
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