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From cb330f4bf1f519032ee50d60f473c28df7b772d8 Mon Sep 17 00:00:00 2001
From: Nikhil Potade <nikhil.potade@linux.intel.com>
Date: Tue, 19 Feb 2019 14:16:20 +0800
Subject: [PATCH] Smbus changes for libmctp
---
CMakeLists.txt | 6 ++++--
core.c | 2 ++
libmctp.h | 40 ++++++++++++++++++++++++++++++++++++++++
3 files changed, 46 insertions(+), 2 deletions(-)
diff --git a/CMakeLists.txt b/CMakeLists.txt
index a5b1042..249b12b 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -2,8 +2,9 @@ cmake_minimum_required (VERSION 3.5 FATAL_ERROR)
add_definitions (-DMCTP_LOG_STDERR)
add_definitions (-DMCTP_FILEIO)
+add_definitions (-DMCTP_DEFAULT_ALLOC)
-add_library (libmctp STATIC alloc.c core.c log.c libmctp.h serial.c)
+add_library (libmctp STATIC alloc.c core.c log.c libmctp.h serial.c smbus.c crc32c.c)
target_include_directories (libmctp PUBLIC
$<BUILD_INTERFACE:${CMAKE_CURRENT_SOURCE_DIR}>
@@ -18,5 +19,6 @@ add_executable (test_seq tests/test_seq.c tests/test-utils.c)
target_link_libraries (test_seq libmctp)
install (TARGETS libmctp DESTINATION lib)
-install (FILES libmctp.h DESTINATION include)
+install (FILES libmctp.h libmctp-smbus.h libmctp-serial.h crc32c.h DESTINATION
+ include)
diff --git a/core.c b/core.c
index b855ced..8be7407 100644
--- a/core.c
+++ b/core.c
@@ -17,6 +17,7 @@
/* Internal data structures */
+/* clang-format off */
struct mctp_bus {
mctp_eid_t eid;
struct mctp_binding *binding;
@@ -50,6 +51,7 @@ struct mctp {
*/
struct mctp_msg_ctx msg_ctxs[16];
};
+/* clang-format on */
#ifndef BUILD_ASSERT
#define BUILD_ASSERT(x) \
diff --git a/libmctp.h b/libmctp.h
index f0633e3..cec7c00 100644
--- a/libmctp.h
+++ b/libmctp.h
@@ -15,6 +15,7 @@ extern "C" {
typedef uint8_t mctp_eid_t;
/* MCTP packet definitions */
+/* clang-format off */
struct mctp_hdr {
uint8_t ver;
uint8_t dest;
@@ -30,12 +31,47 @@ struct mctp_hdr {
#define MCTP_HDR_SEQ_MASK (0x3)
#define MCTP_HDR_TAG_SHIFT (0)
#define MCTP_HDR_TAG_MASK (0x7)
+/* clang-format on */
/* Maximum size of *payload* data in a MCTP packet
* @todo: dynamic sixing based on channel implementation.
*/
#define MCTP_MTU 64
+#define MCTP_CONTROL_MESSAGE_TYPE 0x00
+
+enum MCTP_COMMAND_CODE {
+ MCTP_COMMAND_CODE_SET_EID = 0x01,
+ MCTP_COMMAND_CODE_GET_EID = 0x02,
+ MCTP_COMMAND_CODE_GET_ENDPOINT_UUID = 0x03,
+ MCTP_COMMAND_CODE_GET_MCTP_VERSION_SUPPORT = 0x04,
+ MCTP_COMMAND_CODE_GET_MESSAGE_TYPE_SUPPORT = 0x05,
+ MCTP_COMMAND_CODE_GET_VENDOR_DEFINED_MSG_SUPPORT= 0x06,
+ MCTP_COMMAND_CODE_RESOLVE_ENDPOINT_ID = 0x07,
+ MCTP_COMMAND_CODE_ALLOCATE_ENDPOINT_IDS = 0x08,
+ MCTP_COMMAND_CODE_ROUTING_INFORMATION_UPDATE = 0x09,
+ MCTP_COMMAND_CODE_GET_ROUTING_TABLE_ENTRIES = 0x0A,
+ MCTP_COMMAND_CODE_PREPARE_FOR_ENDPOINT_DISCOVERY= 0x0B,
+ MCTP_COMMAND_CODE_ENDPOINT_DISCOVERY = 0x0C,
+ MCTP_COMMAND_CODE_DISCOVERY_NOTIFY = 0x0D,
+ MCTP_COMMAND_CODE_GET_NETWORK_ID = 0x0E,
+ MCTP_COMMAND_CODE_QUERY_HOP = 0x0F,
+ MCTP_COMMAND_CODE_RESOLVE_UUID = 0x10,
+ MCTP_COMMAND_CODE_QUERY_RATE_LIMIT = 0x11,
+ MCTP_COMMAND_CODE_REQUEST_TX_RATE_LIMIT = 0x12,
+ MCTP_COMMAND_CODE_UPDATE_RATE_LIMIT = 0x13,
+ MCTP_COMMAND_CODE_QUERY_SUPPORTED_INTERFACES = 0x14
+};
+
+enum MCTP_CONTROL_MSG_COMPLETION_CODE {
+ MCTP_CONTROL_MSG_STATUS_SUCCESS = 0x00,
+ MCTP_CONTROL_MSG_STATUS_ERROR = 0x01,
+ MCTP_CONTROL_MSG_STATUS_ERROR_INVALID_DATA = 0x02,
+ MCTP_CONTROL_MSG_STATUS_ERROR_INVALID_LENGTH = 0x03,
+ MCTP_CONTROL_MSG_STATUS_ERROR_NOT_READY = 0x04,
+ MCTP_CONTROL_MSG_STATUS_ERROR_UNSUPPORTED_CMD = 0x05
+};
+
/* packet buffers */
/* Allow a little space before the MCTP header in the packet, for bindings that
@@ -46,12 +82,14 @@ struct mctp_hdr {
#define MCTP_PKTBUF_SIZE (MCTP_PKTBUF_BINDING_PAD + \
(sizeof(struct mctp_hdr) + MCTP_MTU))
+/* clang-format off */
struct mctp_pktbuf {
unsigned char data[MCTP_PKTBUF_SIZE];
uint8_t start, end;
uint8_t mctp_hdr_off;
struct mctp_pktbuf *next;
};
+/* clang-format on */
struct mctp_pktbuf *mctp_pktbuf_alloc(uint8_t len);
void mctp_pktbuf_free(struct mctp_pktbuf *pkt);
@@ -85,6 +123,7 @@ int mctp_message_tx(struct mctp *mctp, mctp_eid_t eid,
void *msg, size_t msg_len);
/* hardware bindings */
+/* clang-format off */
struct mctp_binding {
const char *name;
uint8_t version;
@@ -93,6 +132,7 @@ struct mctp_binding {
int (*tx)(struct mctp_binding *binding,
struct mctp_pktbuf *pkt);
};
+/* clang-format on */
void mctp_binding_set_tx_enabled(struct mctp_binding *binding, bool enable);
--
2.17.1
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