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Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/gi…
…t/jkirsher/net-next Jerr Kirsher says: > This series contains updates to igb (specifically PTP code). Signed-off-by: David S. Miller <davem@davemloft.net>
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,300 @@ | ||
| /******************************************************************************* | ||
| Intel 10 Gigabit PCI Express Linux driver | ||
| Copyright(c) 1999 - 2012 Intel Corporation. | ||
| This program is free software; you can redistribute it and/or modify it | ||
| under the terms and conditions of the GNU General Public License, | ||
| version 2, as published by the Free Software Foundation. | ||
| This program is distributed in the hope it will be useful, but WITHOUT | ||
| ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or | ||
| FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for | ||
| more details. | ||
| You should have received a copy of the GNU General Public License along with | ||
| this program; if not, write to the Free Software Foundation, Inc., | ||
| 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA. | ||
| The full GNU General Public License is included in this distribution in | ||
| the file called "COPYING". | ||
| Contact Information: | ||
| e1000-devel Mailing List <e1000-devel@lists.sourceforge.net> | ||
| Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497 | ||
| *******************************************************************************/ | ||
|
|
||
| #ifdef CONFIG_DEBUG_FS | ||
|
|
||
| #include <linux/debugfs.h> | ||
| #include <linux/module.h> | ||
|
|
||
| #include "ixgbe.h" | ||
|
|
||
| static struct dentry *ixgbe_dbg_root; | ||
|
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||
| static char ixgbe_dbg_reg_ops_buf[256] = ""; | ||
|
|
||
| /** | ||
| * ixgbe_dbg_reg_ops_open - prep the debugfs pokee data item when opened | ||
| * @inode: inode that was opened | ||
| * @filp: file info | ||
| * | ||
| * Stash the adapter pointer hiding in the inode into the file pointer where | ||
| * we can find it later in the read and write calls | ||
| **/ | ||
| static int ixgbe_dbg_reg_ops_open(struct inode *inode, struct file *filp) | ||
| { | ||
| filp->private_data = inode->i_private; | ||
| return 0; | ||
| } | ||
|
|
||
| /** | ||
| * ixgbe_dbg_reg_ops_read - read for reg_ops datum | ||
| * @filp: the opened file | ||
| * @buffer: where to write the data for the user to read | ||
| * @count: the size of the user's buffer | ||
| * @ppos: file position offset | ||
| **/ | ||
| static ssize_t ixgbe_dbg_reg_ops_read(struct file *filp, char __user *buffer, | ||
| size_t count, loff_t *ppos) | ||
| { | ||
| struct ixgbe_adapter *adapter = filp->private_data; | ||
| char buf[256]; | ||
| int bytes_not_copied; | ||
| int len; | ||
|
|
||
| /* don't allow partial reads */ | ||
| if (*ppos != 0) | ||
| return 0; | ||
|
|
||
| len = snprintf(buf, sizeof(buf), "%s: %s\n", | ||
| adapter->netdev->name, ixgbe_dbg_reg_ops_buf); | ||
| if (count < len) | ||
| return -ENOSPC; | ||
| bytes_not_copied = copy_to_user(buffer, buf, len); | ||
| if (bytes_not_copied < 0) | ||
| return bytes_not_copied; | ||
|
|
||
| *ppos = len; | ||
| return len; | ||
| } | ||
|
|
||
| /** | ||
| * ixgbe_dbg_reg_ops_write - write into reg_ops datum | ||
| * @filp: the opened file | ||
| * @buffer: where to find the user's data | ||
| * @count: the length of the user's data | ||
| * @ppos: file position offset | ||
| **/ | ||
| static ssize_t ixgbe_dbg_reg_ops_write(struct file *filp, | ||
| const char __user *buffer, | ||
| size_t count, loff_t *ppos) | ||
| { | ||
| struct ixgbe_adapter *adapter = filp->private_data; | ||
| int bytes_not_copied; | ||
|
|
||
| /* don't allow partial writes */ | ||
| if (*ppos != 0) | ||
| return 0; | ||
| if (count >= sizeof(ixgbe_dbg_reg_ops_buf)) | ||
| return -ENOSPC; | ||
|
|
||
| bytes_not_copied = copy_from_user(ixgbe_dbg_reg_ops_buf, buffer, count); | ||
| if (bytes_not_copied < 0) | ||
| return bytes_not_copied; | ||
| else if (bytes_not_copied < count) | ||
| count -= bytes_not_copied; | ||
| else | ||
| return -ENOSPC; | ||
| ixgbe_dbg_reg_ops_buf[count] = '\0'; | ||
|
|
||
| if (strncmp(ixgbe_dbg_reg_ops_buf, "write", 5) == 0) { | ||
| u32 reg, value; | ||
| int cnt; | ||
| cnt = sscanf(&ixgbe_dbg_reg_ops_buf[5], "%x %x", ®, &value); | ||
| if (cnt == 2) { | ||
| IXGBE_WRITE_REG(&adapter->hw, reg, value); | ||
| value = IXGBE_READ_REG(&adapter->hw, reg); | ||
| e_dev_info("write: 0x%08x = 0x%08x\n", reg, value); | ||
| } else { | ||
| e_dev_info("write <reg> <value>\n"); | ||
| } | ||
| } else if (strncmp(ixgbe_dbg_reg_ops_buf, "read", 4) == 0) { | ||
| u32 reg, value; | ||
| int cnt; | ||
| cnt = sscanf(&ixgbe_dbg_reg_ops_buf[4], "%x", ®); | ||
| if (cnt == 1) { | ||
| value = IXGBE_READ_REG(&adapter->hw, reg); | ||
| e_dev_info("read 0x%08x = 0x%08x\n", reg, value); | ||
| } else { | ||
| e_dev_info("read <reg>\n"); | ||
| } | ||
| } else { | ||
| e_dev_info("Unknown command %s\n", ixgbe_dbg_reg_ops_buf); | ||
| e_dev_info("Available commands:\n"); | ||
| e_dev_info(" read <reg>\n"); | ||
| e_dev_info(" write <reg> <value>\n"); | ||
| } | ||
| return count; | ||
| } | ||
|
|
||
| static const struct file_operations ixgbe_dbg_reg_ops_fops = { | ||
| .owner = THIS_MODULE, | ||
| .open = ixgbe_dbg_reg_ops_open, | ||
| .read = ixgbe_dbg_reg_ops_read, | ||
| .write = ixgbe_dbg_reg_ops_write, | ||
| }; | ||
|
|
||
| static char ixgbe_dbg_netdev_ops_buf[256] = ""; | ||
|
|
||
| /** | ||
| * ixgbe_dbg_netdev_ops_open - prep the debugfs netdev_ops data item | ||
| * @inode: inode that was opened | ||
| * @filp: file info | ||
| * | ||
| * Stash the adapter pointer hiding in the inode into the file pointer | ||
| * where we can find it later in the read and write calls | ||
| **/ | ||
| static int ixgbe_dbg_netdev_ops_open(struct inode *inode, struct file *filp) | ||
| { | ||
| filp->private_data = inode->i_private; | ||
| return 0; | ||
| } | ||
|
|
||
| /** | ||
| * ixgbe_dbg_netdev_ops_read - read for netdev_ops datum | ||
| * @filp: the opened file | ||
| * @buffer: where to write the data for the user to read | ||
| * @count: the size of the user's buffer | ||
| * @ppos: file position offset | ||
| **/ | ||
| static ssize_t ixgbe_dbg_netdev_ops_read(struct file *filp, | ||
| char __user *buffer, | ||
| size_t count, loff_t *ppos) | ||
| { | ||
| struct ixgbe_adapter *adapter = filp->private_data; | ||
| char buf[256]; | ||
| int bytes_not_copied; | ||
| int len; | ||
|
|
||
| /* don't allow partial reads */ | ||
| if (*ppos != 0) | ||
| return 0; | ||
|
|
||
| len = snprintf(buf, sizeof(buf), "%s: %s\n", | ||
| adapter->netdev->name, ixgbe_dbg_netdev_ops_buf); | ||
| if (count < len) | ||
| return -ENOSPC; | ||
| bytes_not_copied = copy_to_user(buffer, buf, len); | ||
| if (bytes_not_copied < 0) | ||
| return bytes_not_copied; | ||
|
|
||
| *ppos = len; | ||
| return len; | ||
| } | ||
|
|
||
| /** | ||
| * ixgbe_dbg_netdev_ops_write - write into netdev_ops datum | ||
| * @filp: the opened file | ||
| * @buffer: where to find the user's data | ||
| * @count: the length of the user's data | ||
| * @ppos: file position offset | ||
| **/ | ||
| static ssize_t ixgbe_dbg_netdev_ops_write(struct file *filp, | ||
| const char __user *buffer, | ||
| size_t count, loff_t *ppos) | ||
| { | ||
| struct ixgbe_adapter *adapter = filp->private_data; | ||
| int bytes_not_copied; | ||
|
|
||
| /* don't allow partial writes */ | ||
| if (*ppos != 0) | ||
| return 0; | ||
| if (count >= sizeof(ixgbe_dbg_netdev_ops_buf)) | ||
| return -ENOSPC; | ||
|
|
||
| bytes_not_copied = copy_from_user(ixgbe_dbg_netdev_ops_buf, | ||
| buffer, count); | ||
| if (bytes_not_copied < 0) | ||
| return bytes_not_copied; | ||
| else if (bytes_not_copied < count) | ||
| count -= bytes_not_copied; | ||
| else | ||
| return -ENOSPC; | ||
| ixgbe_dbg_netdev_ops_buf[count] = '\0'; | ||
|
|
||
| if (strncmp(ixgbe_dbg_netdev_ops_buf, "tx_timeout", 10) == 0) { | ||
| adapter->netdev->netdev_ops->ndo_tx_timeout(adapter->netdev); | ||
| e_dev_info("tx_timeout called\n"); | ||
| } else { | ||
| e_dev_info("Unknown command: %s\n", ixgbe_dbg_netdev_ops_buf); | ||
| e_dev_info("Available commands:\n"); | ||
| e_dev_info(" tx_timeout\n"); | ||
| } | ||
| return count; | ||
| } | ||
|
|
||
| static const struct file_operations ixgbe_dbg_netdev_ops_fops = { | ||
| .owner = THIS_MODULE, | ||
| .open = ixgbe_dbg_netdev_ops_open, | ||
| .read = ixgbe_dbg_netdev_ops_read, | ||
| .write = ixgbe_dbg_netdev_ops_write, | ||
| }; | ||
|
|
||
| /** | ||
| * ixgbe_dbg_adapter_init - setup the debugfs directory for the adapter | ||
| * @adapter: the adapter that is starting up | ||
| **/ | ||
| void ixgbe_dbg_adapter_init(struct ixgbe_adapter *adapter) | ||
| { | ||
| const char *name = pci_name(adapter->pdev); | ||
| struct dentry *pfile; | ||
| adapter->ixgbe_dbg_adapter = debugfs_create_dir(name, ixgbe_dbg_root); | ||
| if (adapter->ixgbe_dbg_adapter) { | ||
| pfile = debugfs_create_file("reg_ops", 0600, | ||
| adapter->ixgbe_dbg_adapter, adapter, | ||
| &ixgbe_dbg_reg_ops_fops); | ||
| if (!pfile) | ||
| e_dev_err("debugfs reg_ops for %s failed\n", name); | ||
| pfile = debugfs_create_file("netdev_ops", 0600, | ||
| adapter->ixgbe_dbg_adapter, adapter, | ||
| &ixgbe_dbg_netdev_ops_fops); | ||
| if (!pfile) | ||
| e_dev_err("debugfs netdev_ops for %s failed\n", name); | ||
| } else { | ||
| e_dev_err("debugfs entry for %s failed\n", name); | ||
| } | ||
| } | ||
|
|
||
| /** | ||
| * ixgbe_dbg_adapter_exit - clear out the adapter's debugfs entries | ||
| * @pf: the pf that is stopping | ||
| **/ | ||
| void ixgbe_dbg_adapter_exit(struct ixgbe_adapter *adapter) | ||
| { | ||
| if (adapter->ixgbe_dbg_adapter) | ||
| debugfs_remove_recursive(adapter->ixgbe_dbg_adapter); | ||
| adapter->ixgbe_dbg_adapter = NULL; | ||
| } | ||
|
|
||
| /** | ||
| * ixgbe_dbg_init - start up debugfs for the driver | ||
| **/ | ||
| void ixgbe_dbg_init(void) | ||
| { | ||
| ixgbe_dbg_root = debugfs_create_dir(ixgbe_driver_name, NULL); | ||
| if (ixgbe_dbg_root == NULL) | ||
| pr_err("init of debugfs failed\n"); | ||
| } | ||
|
|
||
| /** | ||
| * ixgbe_dbg_exit - clean out the driver's debugfs entries | ||
| **/ | ||
| void ixgbe_dbg_exit(void) | ||
| { | ||
| debugfs_remove_recursive(ixgbe_dbg_root); | ||
| } | ||
|
|
||
| #endif /* CONFIG_DEBUG_FS */ |
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