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yaml --- r: 77146 b: refs/heads/master c: df613b9 h: refs/heads/master v: v3
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Andrew Vasquez
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James Bottomley
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Jan 23, 2008
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -1,2 +1,2 @@ | ||
| --- | ||
| refs/heads/master: 00b6bd25166e2a4bad23c614c10c55993bb2489e | ||
| refs/heads/master: df613b96077cee826b14089ae6e75eeabf71faa3 |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -1,4 +1,4 @@ | ||
| qla2xxx-y := qla_os.o qla_init.o qla_mbx.o qla_iocb.o qla_isr.o qla_gs.o \ | ||
| qla_dbg.o qla_sup.o qla_attr.o qla_mid.o | ||
| qla_dbg.o qla_sup.o qla_attr.o qla_mid.o qla_dfs.o | ||
|
|
||
| obj-$(CONFIG_SCSI_QLA_FC) += qla2xxx.o |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,175 @@ | ||
| /* | ||
| * QLogic Fibre Channel HBA Driver | ||
| * Copyright (c) 2003-2005 QLogic Corporation | ||
| * | ||
| * See LICENSE.qla2xxx for copyright and licensing details. | ||
| */ | ||
| #include "qla_def.h" | ||
|
|
||
| #include <linux/debugfs.h> | ||
| #include <linux/seq_file.h> | ||
|
|
||
| static struct dentry *qla2x00_dfs_root; | ||
| static atomic_t qla2x00_dfs_root_count; | ||
|
|
||
| static int | ||
| qla2x00_dfs_fce_show(struct seq_file *s, void *unused) | ||
| { | ||
| scsi_qla_host_t *ha = s->private; | ||
| uint32_t cnt; | ||
| uint32_t *fce; | ||
| uint64_t fce_start; | ||
|
|
||
| mutex_lock(&ha->fce_mutex); | ||
|
|
||
| seq_printf(s, "FCE Trace Buffer\n"); | ||
| seq_printf(s, "In Pointer = %llx\n\n", ha->fce_wr); | ||
| seq_printf(s, "Base = %llx\n\n", (unsigned long long) ha->fce_dma); | ||
| seq_printf(s, "FCE Enable Registers\n"); | ||
| seq_printf(s, "%08x %08x %08x %08x %08x %08x\n", | ||
| ha->fce_mb[0], ha->fce_mb[2], ha->fce_mb[3], ha->fce_mb[4], | ||
| ha->fce_mb[5], ha->fce_mb[6]); | ||
|
|
||
| fce = (uint32_t *) ha->fce; | ||
| fce_start = (unsigned long long) ha->fce_dma; | ||
| for (cnt = 0; cnt < fce_calc_size(ha->fce_bufs) / 4; cnt++) { | ||
| if (cnt % 8 == 0) | ||
| seq_printf(s, "\n%llx: ", | ||
| (unsigned long long)((cnt * 4) + fce_start)); | ||
| else | ||
| seq_printf(s, " "); | ||
| seq_printf(s, "%08x", *fce++); | ||
| } | ||
|
|
||
| seq_printf(s, "\nEnd\n"); | ||
|
|
||
| mutex_unlock(&ha->fce_mutex); | ||
|
|
||
| return 0; | ||
| } | ||
|
|
||
| static int | ||
| qla2x00_dfs_fce_open(struct inode *inode, struct file *file) | ||
| { | ||
| scsi_qla_host_t *ha = inode->i_private; | ||
| int rval; | ||
|
|
||
| if (!ha->flags.fce_enabled) | ||
| goto out; | ||
|
|
||
| mutex_lock(&ha->fce_mutex); | ||
|
|
||
| /* Pause tracing to flush FCE buffers. */ | ||
| rval = qla2x00_disable_fce_trace(ha, &ha->fce_wr, &ha->fce_rd); | ||
| if (rval) | ||
| qla_printk(KERN_WARNING, ha, | ||
| "DebugFS: Unable to disable FCE (%d).\n", rval); | ||
|
|
||
| ha->flags.fce_enabled = 0; | ||
|
|
||
| mutex_unlock(&ha->fce_mutex); | ||
| out: | ||
| return single_open(file, qla2x00_dfs_fce_show, ha); | ||
| } | ||
|
|
||
| static int | ||
| qla2x00_dfs_fce_release(struct inode *inode, struct file *file) | ||
| { | ||
| scsi_qla_host_t *ha = inode->i_private; | ||
| int rval; | ||
|
|
||
| if (ha->flags.fce_enabled) | ||
| goto out; | ||
|
|
||
| mutex_lock(&ha->fce_mutex); | ||
|
|
||
| /* Re-enable FCE tracing. */ | ||
| ha->flags.fce_enabled = 1; | ||
| memset(ha->fce, 0, fce_calc_size(ha->fce_bufs)); | ||
| rval = qla2x00_enable_fce_trace(ha, ha->fce_dma, ha->fce_bufs, | ||
| ha->fce_mb, &ha->fce_bufs); | ||
| if (rval) { | ||
| qla_printk(KERN_WARNING, ha, | ||
| "DebugFS: Unable to reinitialize FCE (%d).\n", rval); | ||
| ha->flags.fce_enabled = 0; | ||
| } | ||
|
|
||
| mutex_unlock(&ha->fce_mutex); | ||
| out: | ||
| return single_release(inode, file); | ||
| } | ||
|
|
||
| static const struct file_operations dfs_fce_ops = { | ||
| .open = qla2x00_dfs_fce_open, | ||
| .read = seq_read, | ||
| .llseek = seq_lseek, | ||
| .release = qla2x00_dfs_fce_release, | ||
| }; | ||
|
|
||
| int | ||
| qla2x00_dfs_setup(scsi_qla_host_t *ha) | ||
| { | ||
| if (!IS_QLA25XX(ha)) | ||
| goto out; | ||
| if (!ha->fce) | ||
| goto out; | ||
|
|
||
| if (qla2x00_dfs_root) | ||
| goto create_dir; | ||
|
|
||
| atomic_set(&qla2x00_dfs_root_count, 0); | ||
| qla2x00_dfs_root = debugfs_create_dir(QLA2XXX_DRIVER_NAME, NULL); | ||
| if (!qla2x00_dfs_root) { | ||
| qla_printk(KERN_NOTICE, ha, | ||
| "DebugFS: Unable to create root directory.\n"); | ||
| goto out; | ||
| } | ||
|
|
||
| create_dir: | ||
| if (ha->dfs_dir) | ||
| goto create_nodes; | ||
|
|
||
| mutex_init(&ha->fce_mutex); | ||
| ha->dfs_dir = debugfs_create_dir(ha->host_str, qla2x00_dfs_root); | ||
| if (!ha->dfs_dir) { | ||
| qla_printk(KERN_NOTICE, ha, | ||
| "DebugFS: Unable to create ha directory.\n"); | ||
| goto out; | ||
| } | ||
|
|
||
| atomic_inc(&qla2x00_dfs_root_count); | ||
|
|
||
| create_nodes: | ||
| ha->dfs_fce = debugfs_create_file("fce", S_IRUSR, ha->dfs_dir, ha, | ||
| &dfs_fce_ops); | ||
| if (!ha->dfs_fce) { | ||
| qla_printk(KERN_NOTICE, ha, | ||
| "DebugFS: Unable to fce node.\n"); | ||
| goto out; | ||
| } | ||
| out: | ||
| return 0; | ||
| } | ||
|
|
||
| int | ||
| qla2x00_dfs_remove(scsi_qla_host_t *ha) | ||
| { | ||
| if (ha->dfs_fce) { | ||
| debugfs_remove(ha->dfs_fce); | ||
| ha->dfs_fce = NULL; | ||
| } | ||
|
|
||
| if (ha->dfs_dir) { | ||
| debugfs_remove(ha->dfs_dir); | ||
| ha->dfs_dir = NULL; | ||
| atomic_dec(&qla2x00_dfs_root_count); | ||
| } | ||
|
|
||
| if (atomic_read(&qla2x00_dfs_root_count) == 0 && | ||
| qla2x00_dfs_root) { | ||
| debugfs_remove(qla2x00_dfs_root); | ||
| qla2x00_dfs_root = NULL; | ||
| } | ||
|
|
||
| return 0; | ||
| } |
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