cxgb4: Add cxgb4_debugfs.c, move all debugfs code to new file
Signed-off-by: Hariprasad Shenai <hariprasad@chelsio.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/drivers/net/ethernet/chelsio/cxgb4/cxgb4_main.c b/drivers/net/ethernet/chelsio/cxgb4/cxgb4_main.c
index 8520d55..172f68b 100644
--- a/drivers/net/ethernet/chelsio/cxgb4/cxgb4_main.c
+++ b/drivers/net/ethernet/chelsio/cxgb4/cxgb4_main.c
@@ -68,6 +68,7 @@
#include "t4_msg.h"
#include "t4fw_api.h"
#include "cxgb4_dcb.h"
+#include "cxgb4_debugfs.h"
#include "l2t.h"
#include <../drivers/net/bonding/bonding.h>
@@ -1287,7 +1288,7 @@
/*
* Free memory allocated through alloc_mem().
*/
-static void t4_free_mem(void *addr)
+void t4_free_mem(void *addr)
{
if (is_vmalloc_addr(addr))
vfree(addr);
@@ -3127,102 +3128,14 @@
.flash_device = set_flash,
};
-/*
- * debugfs support
- */
-static ssize_t mem_read(struct file *file, char __user *buf, size_t count,
- loff_t *ppos)
-{
- loff_t pos = *ppos;
- loff_t avail = file_inode(file)->i_size;
- unsigned int mem = (uintptr_t)file->private_data & 3;
- struct adapter *adap = file->private_data - mem;
- __be32 *data;
- int ret;
-
- if (pos < 0)
- return -EINVAL;
- if (pos >= avail)
- return 0;
- if (count > avail - pos)
- count = avail - pos;
-
- data = t4_alloc_mem(count);
- if (!data)
- return -ENOMEM;
-
- spin_lock(&adap->win0_lock);
- ret = t4_memory_rw(adap, 0, mem, pos, count, data, T4_MEMORY_READ);
- spin_unlock(&adap->win0_lock);
- if (ret) {
- t4_free_mem(data);
- return ret;
- }
- ret = copy_to_user(buf, data, count);
-
- t4_free_mem(data);
- if (ret)
- return -EFAULT;
-
- *ppos = pos + count;
- return count;
-}
-
-static const struct file_operations mem_debugfs_fops = {
- .owner = THIS_MODULE,
- .open = simple_open,
- .read = mem_read,
- .llseek = default_llseek,
-};
-
-static void add_debugfs_mem(struct adapter *adap, const char *name,
- unsigned int idx, unsigned int size_mb)
-{
- struct dentry *de;
-
- de = debugfs_create_file(name, S_IRUSR, adap->debugfs_root,
- (void *)adap + idx, &mem_debugfs_fops);
- if (de && de->d_inode)
- de->d_inode->i_size = size_mb << 20;
-}
-
static int setup_debugfs(struct adapter *adap)
{
- int i;
- u32 size;
-
if (IS_ERR_OR_NULL(adap->debugfs_root))
return -1;
- i = t4_read_reg(adap, MA_TARGET_MEM_ENABLE);
- if (i & EDRAM0_ENABLE) {
- size = t4_read_reg(adap, MA_EDRAM0_BAR);
- add_debugfs_mem(adap, "edc0", MEM_EDC0, EDRAM_SIZE_GET(size));
- }
- if (i & EDRAM1_ENABLE) {
- size = t4_read_reg(adap, MA_EDRAM1_BAR);
- add_debugfs_mem(adap, "edc1", MEM_EDC1, EDRAM_SIZE_GET(size));
- }
- if (is_t4(adap->params.chip)) {
- size = t4_read_reg(adap, MA_EXT_MEMORY_BAR);
- if (i & EXT_MEM_ENABLE)
- add_debugfs_mem(adap, "mc", MEM_MC,
- EXT_MEM_SIZE_GET(size));
- } else {
- if (i & EXT_MEM_ENABLE) {
- size = t4_read_reg(adap, MA_EXT_MEMORY_BAR);
- add_debugfs_mem(adap, "mc0", MEM_MC0,
- EXT_MEM_SIZE_GET(size));
- }
- if (i & EXT_MEM1_ENABLE) {
- size = t4_read_reg(adap, MA_EXT_MEMORY1_BAR);
- add_debugfs_mem(adap, "mc1", MEM_MC1,
- EXT_MEM_SIZE_GET(size));
- }
- }
- if (adap->l2t)
- debugfs_create_file("l2t", S_IRUSR, adap->debugfs_root, adap,
- &t4_l2t_fops);
+#ifdef CONFIG_DEBUG_FS
+ t4_setup_debugfs(adap);
+#endif
return 0;
}