[PATCH 2/3] ipmi: Create header with KCS interface defines
From: Konstantin Aladyshev
Date: Thu Sep 28 2023 - 08:30:51 EST
Some definitions from the current kcs_bmc_cdev_ipmi driver can be also
utilized by the MTCP KCS binding driver. Move such definitions to the
common header file.
Signed-off-by: Konstantin Aladyshev <aladyshev22@xxxxxxxxx>
---
drivers/char/ipmi/kcs_bmc_cdev_ipmi.c | 71 +-----------------------
include/linux/ipmi_kcs.h | 80 +++++++++++++++++++++++++++
2 files changed, 81 insertions(+), 70 deletions(-)
create mode 100644 include/linux/ipmi_kcs.h
diff --git a/drivers/char/ipmi/kcs_bmc_cdev_ipmi.c b/drivers/char/ipmi/kcs_bmc_cdev_ipmi.c
index bf1001130a6c..f158f676114c 100644
--- a/drivers/char/ipmi/kcs_bmc_cdev_ipmi.c
+++ b/drivers/char/ipmi/kcs_bmc_cdev_ipmi.c
@@ -8,6 +8,7 @@
#include <linux/errno.h>
#include <linux/io.h>
#include <linux/ipmi_bmc.h>
+#include <linux/ipmi_kcs.h>
#include <linux/kcs_bmc_client.h>
#include <linux/list.h>
#include <linux/miscdevice.h>
@@ -19,53 +20,6 @@
#include <linux/slab.h>
-/* Different phases of the KCS BMC module.
- * KCS_PHASE_IDLE:
- * BMC should not be expecting nor sending any data.
- * KCS_PHASE_WRITE_START:
- * BMC is receiving a WRITE_START command from system software.
- * KCS_PHASE_WRITE_DATA:
- * BMC is receiving a data byte from system software.
- * KCS_PHASE_WRITE_END_CMD:
- * BMC is waiting a last data byte from system software.
- * KCS_PHASE_WRITE_DONE:
- * BMC has received the whole request from system software.
- * KCS_PHASE_WAIT_READ:
- * BMC is waiting the response from the upper IPMI service.
- * KCS_PHASE_READ:
- * BMC is transferring the response to system software.
- * KCS_PHASE_ABORT_ERROR1:
- * BMC is waiting error status request from system software.
- * KCS_PHASE_ABORT_ERROR2:
- * BMC is waiting for idle status afer error from system software.
- * KCS_PHASE_ERROR:
- * BMC has detected a protocol violation at the interface level.
- */
-enum kcs_ipmi_phases {
- KCS_PHASE_IDLE,
-
- KCS_PHASE_WRITE_START,
- KCS_PHASE_WRITE_DATA,
- KCS_PHASE_WRITE_END_CMD,
- KCS_PHASE_WRITE_DONE,
-
- KCS_PHASE_WAIT_READ,
- KCS_PHASE_READ,
-
- KCS_PHASE_ABORT_ERROR1,
- KCS_PHASE_ABORT_ERROR2,
- KCS_PHASE_ERROR
-};
-
-/* IPMI 2.0 - Table 9-4, KCS Interface Status Codes */
-enum kcs_ipmi_errors {
- KCS_NO_ERROR = 0x00,
- KCS_ABORTED_BY_COMMAND = 0x01,
- KCS_ILLEGAL_CONTROL_CODE = 0x02,
- KCS_LENGTH_ERROR = 0x06,
- KCS_UNSPECIFIED_ERROR = 0xFF
-};
-
struct kcs_bmc_ipmi {
struct list_head entry;
@@ -95,29 +49,6 @@ struct kcs_bmc_ipmi {
#define KCS_MSG_BUFSIZ 1000
-#define KCS_ZERO_DATA 0
-
-/* IPMI 2.0 - Table 9-1, KCS Interface Status Register Bits */
-#define KCS_STATUS_STATE(state) (state << 6)
-#define KCS_STATUS_STATE_MASK GENMASK(7, 6)
-#define KCS_STATUS_CMD_DAT BIT(3)
-#define KCS_STATUS_SMS_ATN BIT(2)
-#define KCS_STATUS_IBF BIT(1)
-#define KCS_STATUS_OBF BIT(0)
-
-/* IPMI 2.0 - Table 9-2, KCS Interface State Bits */
-enum kcs_states {
- IDLE_STATE = 0,
- READ_STATE = 1,
- WRITE_STATE = 2,
- ERROR_STATE = 3,
-};
-
-/* IPMI 2.0 - Table 9-3, KCS Interface Control Codes */
-#define KCS_CMD_GET_STATUS_ABORT 0x60
-#define KCS_CMD_WRITE_START 0x61
-#define KCS_CMD_WRITE_END 0x62
-#define KCS_CMD_READ_BYTE 0x68
static inline void set_state(struct kcs_bmc_ipmi *priv, u8 state)
{
diff --git a/include/linux/ipmi_kcs.h b/include/linux/ipmi_kcs.h
new file mode 100644
index 000000000000..30c4b6e4d689
--- /dev/null
+++ b/include/linux/ipmi_kcs.h
@@ -0,0 +1,80 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+ * Copyright (c) 2015-2018, Intel Corporation.
+ */
+
+#ifndef __IPMI_KCS_H__
+#define __IPMI_KCS_H__
+
+/* Different phases of the KCS BMC module.
+ * KCS_PHASE_IDLE:
+ * BMC should not be expecting nor sending any data.
+ * KCS_PHASE_WRITE_START:
+ * BMC is receiving a WRITE_START command from system software.
+ * KCS_PHASE_WRITE_DATA:
+ * BMC is receiving a data byte from system software.
+ * KCS_PHASE_WRITE_END_CMD:
+ * BMC is waiting a last data byte from system software.
+ * KCS_PHASE_WRITE_DONE:
+ * BMC has received the whole request from system software.
+ * KCS_PHASE_WAIT_READ:
+ * BMC is waiting the response from the upper IPMI service.
+ * KCS_PHASE_READ:
+ * BMC is transferring the response to system software.
+ * KCS_PHASE_ABORT_ERROR1:
+ * BMC is waiting error status request from system software.
+ * KCS_PHASE_ABORT_ERROR2:
+ * BMC is waiting for idle status afer error from system software.
+ * KCS_PHASE_ERROR:
+ * BMC has detected a protocol violation at the interface level.
+ */
+enum kcs_ipmi_phases {
+ KCS_PHASE_IDLE,
+
+ KCS_PHASE_WRITE_START,
+ KCS_PHASE_WRITE_DATA,
+ KCS_PHASE_WRITE_END_CMD,
+ KCS_PHASE_WRITE_DONE,
+
+ KCS_PHASE_WAIT_READ,
+ KCS_PHASE_READ,
+
+ KCS_PHASE_ABORT_ERROR1,
+ KCS_PHASE_ABORT_ERROR2,
+ KCS_PHASE_ERROR
+};
+
+/* IPMI 2.0 - Table 9-4, KCS Interface Status Codes */
+enum kcs_ipmi_errors {
+ KCS_NO_ERROR = 0x00,
+ KCS_ABORTED_BY_COMMAND = 0x01,
+ KCS_ILLEGAL_CONTROL_CODE = 0x02,
+ KCS_LENGTH_ERROR = 0x06,
+ KCS_UNSPECIFIED_ERROR = 0xFF
+};
+
+#define KCS_ZERO_DATA 0
+
+/* IPMI 2.0 - Table 9-1, KCS Interface Status Register Bits */
+#define KCS_STATUS_STATE(state) (state << 6)
+#define KCS_STATUS_STATE_MASK GENMASK(7, 6)
+#define KCS_STATUS_CMD_DAT BIT(3)
+#define KCS_STATUS_SMS_ATN BIT(2)
+#define KCS_STATUS_IBF BIT(1)
+#define KCS_STATUS_OBF BIT(0)
+
+/* IPMI 2.0 - Table 9-2, KCS Interface State Bits */
+enum kcs_states {
+ IDLE_STATE = 0,
+ READ_STATE = 1,
+ WRITE_STATE = 2,
+ ERROR_STATE = 3,
+};
+
+/* IPMI 2.0 - Table 9-3, KCS Interface Control Codes */
+#define KCS_CMD_GET_STATUS_ABORT 0x60
+#define KCS_CMD_WRITE_START 0x61
+#define KCS_CMD_WRITE_END 0x62
+#define KCS_CMD_READ_BYTE 0x68
+
+#endif /* __IPMI_KCS_H__ */
--
2.25.1