sven/can-utils
1
0
Fork 0
mirror of https://github.com/linux-can/can-utils.git synced 2026-09-29 12:21:05 +02:00
Code Issues Packages Projects Releases Wiki Activity

mcp251xfd-dump: add support for dumps created with Linux kernel >= v5.18

Browse Source
This commit is contained in:
Marc Kleine-Budde
2023-01-03 20:31:54 +01:00
parent b4042d0205
commit f3b35e8e80
4 changed files with 355 additions and 332 deletions
Download Patch File Download Diff File Expand all files Collapse all files
mcp251xfd/mcp251xfd-dev-coredump.c
+21 -15
View File
@@ -21,7 +21,6 @@
#include "mcp251xfd.h"
#include "mcp251xfd-dump-userspace.h"
struct mcp251xfd_dump_iter {
const void *start;
const struct mcp251xfd_dump_object_header *hdr;
@@ -29,20 +28,20 @@ struct mcp251xfd_dump_iter {
const void *object_end;
};
static __attribute__((__unused__)) const char *
const char *
get_object_type_str(enum mcp251xfd_dump_object_type object_type)
{
switch (object_type) {
case MCP251XFD_DUMP_OBJECT_TYPE_REG:
return "reg";
return "REG";
case MCP251XFD_DUMP_OBJECT_TYPE_TEF:
return "tef";
return "TEF";
case MCP251XFD_DUMP_OBJECT_TYPE_RX:
return "rx";
return "RX";
case MCP251XFD_DUMP_OBJECT_TYPE_TX:
return "tx";
return "TX";
case MCP251XFD_DUMP_OBJECT_TYPE_END:
return "end";
return "END";
default:
return "<unknown>";
}
@@ -86,7 +85,7 @@ do_dev_coredump_read_reg(const struct mcp251xfd_priv *priv,
reg = le32toh(object->reg);
val = le32toh(object->val);
pr_debug("%s: object=0x%04zx reg=0x%04x - val=0x%08x\n",
pr_debug("%s: offset=0x%04zx reg=0x%04x - val=0x%08x\n",
__func__,
(void *)object - iter->start,
reg, val);
@@ -116,7 +115,7 @@ do_dev_coredump_read_ring(const struct mcp251xfd_priv *priv,
key = le32toh(object->reg);
val = le32toh(object->val);
pr_debug("%s: reg=0x%04zx key=0x%02x: %8s - val=0x%08x\n",
pr_debug("%s: offset=0x%04zx key=0x%02x: %8s - val=0x%08x\n",
__func__,
(void *)object - iter->start,
key, get_ring_key_str(key), val);
@@ -144,7 +143,7 @@ do_dev_coredump_read_ring(const struct mcp251xfd_priv *priv,
ring->obj_size = val;
break;
default:
return -EINVAL;
continue;
}
}
@@ -167,6 +166,7 @@ do_dev_coredump_read(struct mcp251xfd_priv *priv,
le32toh(iter->hdr->magic) == MCP251XFD_DUMP_MAGIC) {
const struct mcp251xfd_dump_object_header *hdr = iter->hdr;
enum mcp251xfd_dump_object_type object_type;
struct mcp251xfd_ring ring;
size_t object_offset, object_len;
int err;
@@ -180,6 +180,8 @@ do_dev_coredump_read(struct mcp251xfd_priv *priv,
iter->object_start = iter->start + object_offset;
iter->object_end = iter->object_start + object_len;
mcp251xfd_dump_ring_init(&ring);
pr_debug("%s: hdr=0x%04zx type=0x%08x: %8s - offset=0x%04zx len=0x%04zx end=0x%04zx\n",
__func__,
(void *)iter->hdr - iter->start,
@@ -191,13 +193,17 @@ do_dev_coredump_read(struct mcp251xfd_priv *priv,
err = do_dev_coredump_read_reg(priv, iter, mem);
break;
case MCP251XFD_DUMP_OBJECT_TYPE_TEF:
err = do_dev_coredump_read_ring(priv, iter, priv->tef);
break;
case MCP251XFD_DUMP_OBJECT_TYPE_RX:
err = do_dev_coredump_read_ring(priv, iter, priv->rx);
break;
case MCP251XFD_DUMP_OBJECT_TYPE_TX:
err = do_dev_coredump_read_ring(priv, iter, priv->tx);
err = do_dev_coredump_read_ring(priv, iter, &ring);
if (err)
return err;
if (ring.fifo_nr >= ARRAY_SIZE(priv->ring))
return -EINVAL;
priv->ring[ring.fifo_nr] = ring;
break;
case MCP251XFD_DUMP_OBJECT_TYPE_END:
return 0;