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path: root/drivers/scsi/lpfc/lpfc_debugfs.c
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Diffstat (limited to 'drivers/scsi/lpfc/lpfc_debugfs.c')
-rw-r--r--drivers/scsi/lpfc/lpfc_debugfs.c181
1 files changed, 181 insertions, 0 deletions
diff --git a/drivers/scsi/lpfc/lpfc_debugfs.c b/drivers/scsi/lpfc/lpfc_debugfs.c
index a0424dd90e40..2cd844f7058f 100644
--- a/drivers/scsi/lpfc/lpfc_debugfs.c
+++ b/drivers/scsi/lpfc/lpfc_debugfs.c
@@ -996,6 +996,85 @@ lpfc_debugfs_dumpDataDif_write(struct file *file, const char __user *buf,
return nbytes;
}
+static int
+lpfc_debugfs_dif_err_open(struct inode *inode, struct file *file)
+{
+ file->private_data = inode->i_private;
+ return 0;
+}
+
+static ssize_t
+lpfc_debugfs_dif_err_read(struct file *file, char __user *buf,
+ size_t nbytes, loff_t *ppos)
+{
+ struct dentry *dent = file->f_dentry;
+ struct lpfc_hba *phba = file->private_data;
+ char cbuf[16];
+ int cnt = 0;
+
+ if (dent == phba->debug_writeGuard)
+ cnt = snprintf(cbuf, 16, "%u\n", phba->lpfc_injerr_wgrd_cnt);
+ else if (dent == phba->debug_writeApp)
+ cnt = snprintf(cbuf, 16, "%u\n", phba->lpfc_injerr_wapp_cnt);
+ else if (dent == phba->debug_writeRef)
+ cnt = snprintf(cbuf, 16, "%u\n", phba->lpfc_injerr_wref_cnt);
+ else if (dent == phba->debug_readApp)
+ cnt = snprintf(cbuf, 16, "%u\n", phba->lpfc_injerr_rapp_cnt);
+ else if (dent == phba->debug_readRef)
+ cnt = snprintf(cbuf, 16, "%u\n", phba->lpfc_injerr_rref_cnt);
+ else if (dent == phba->debug_InjErrLBA)
+ cnt = snprintf(cbuf, 16, "0x%lx\n",
+ (unsigned long) phba->lpfc_injerr_lba);
+ else
+ lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
+ "0547 Unknown debugfs error injection entry\n");
+
+ return simple_read_from_buffer(buf, nbytes, ppos, &cbuf, cnt);
+}
+
+static ssize_t
+lpfc_debugfs_dif_err_write(struct file *file, const char __user *buf,
+ size_t nbytes, loff_t *ppos)
+{
+ struct dentry *dent = file->f_dentry;
+ struct lpfc_hba *phba = file->private_data;
+ char dstbuf[32];
+ unsigned long tmp;
+ int size;
+
+ memset(dstbuf, 0, 32);
+ size = (nbytes < 32) ? nbytes : 32;
+ if (copy_from_user(dstbuf, buf, size))
+ return 0;
+
+ if (strict_strtoul(dstbuf, 0, &tmp))
+ return 0;
+
+ if (dent == phba->debug_writeGuard)
+ phba->lpfc_injerr_wgrd_cnt = (uint32_t)tmp;
+ else if (dent == phba->debug_writeApp)
+ phba->lpfc_injerr_wapp_cnt = (uint32_t)tmp;
+ else if (dent == phba->debug_writeRef)
+ phba->lpfc_injerr_wref_cnt = (uint32_t)tmp;
+ else if (dent == phba->debug_readApp)
+ phba->lpfc_injerr_rapp_cnt = (uint32_t)tmp;
+ else if (dent == phba->debug_readRef)
+ phba->lpfc_injerr_rref_cnt = (uint32_t)tmp;
+ else if (dent == phba->debug_InjErrLBA)
+ phba->lpfc_injerr_lba = (sector_t)tmp;
+ else
+ lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
+ "0548 Unknown debugfs error injection entry\n");
+
+ return nbytes;
+}
+
+static int
+lpfc_debugfs_dif_err_release(struct inode *inode, struct file *file)
+{
+ return 0;
+}
+
/**
* lpfc_debugfs_nodelist_open - Open the nodelist debugfs file
* @inode: The inode pointer that contains a vport pointer.
@@ -3380,6 +3459,16 @@ static const struct file_operations lpfc_debugfs_op_dumpDif = {
.release = lpfc_debugfs_dumpDataDif_release,
};
+#undef lpfc_debugfs_op_dif_err
+static const struct file_operations lpfc_debugfs_op_dif_err = {
+ .owner = THIS_MODULE,
+ .open = lpfc_debugfs_dif_err_open,
+ .llseek = lpfc_debugfs_lseek,
+ .read = lpfc_debugfs_dif_err_read,
+ .write = lpfc_debugfs_dif_err_write,
+ .release = lpfc_debugfs_dif_err_release,
+};
+
#undef lpfc_debugfs_op_slow_ring_trc
static const struct file_operations lpfc_debugfs_op_slow_ring_trc = {
.owner = THIS_MODULE,
@@ -3788,6 +3877,74 @@ lpfc_debugfs_initialize(struct lpfc_vport *vport)
goto debug_failed;
}
+ /* Setup DIF Error Injections */
+ snprintf(name, sizeof(name), "InjErrLBA");
+ phba->debug_InjErrLBA =
+ debugfs_create_file(name, S_IFREG|S_IRUGO|S_IWUSR,
+ phba->hba_debugfs_root,
+ phba, &lpfc_debugfs_op_dif_err);
+ if (!phba->debug_InjErrLBA) {
+ lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT,
+ "0807 Cannot create debugfs InjErrLBA\n");
+ goto debug_failed;
+ }
+ phba->lpfc_injerr_lba = LPFC_INJERR_LBA_OFF;
+
+ snprintf(name, sizeof(name), "writeGuardInjErr");
+ phba->debug_writeGuard =
+ debugfs_create_file(name, S_IFREG|S_IRUGO|S_IWUSR,
+ phba->hba_debugfs_root,
+ phba, &lpfc_debugfs_op_dif_err);
+ if (!phba->debug_writeGuard) {
+ lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT,
+ "0802 Cannot create debugfs writeGuard\n");
+ goto debug_failed;
+ }
+
+ snprintf(name, sizeof(name), "writeAppInjErr");
+ phba->debug_writeApp =
+ debugfs_create_file(name, S_IFREG|S_IRUGO|S_IWUSR,
+ phba->hba_debugfs_root,
+ phba, &lpfc_debugfs_op_dif_err);
+ if (!phba->debug_writeApp) {
+ lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT,
+ "0803 Cannot create debugfs writeApp\n");
+ goto debug_failed;
+ }
+
+ snprintf(name, sizeof(name), "writeRefInjErr");
+ phba->debug_writeRef =
+ debugfs_create_file(name, S_IFREG|S_IRUGO|S_IWUSR,
+ phba->hba_debugfs_root,
+ phba, &lpfc_debugfs_op_dif_err);
+ if (!phba->debug_writeRef) {
+ lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT,
+ "0804 Cannot create debugfs writeRef\n");
+ goto debug_failed;
+ }
+
+ snprintf(name, sizeof(name), "readAppInjErr");
+ phba->debug_readApp =
+ debugfs_create_file(name, S_IFREG|S_IRUGO|S_IWUSR,
+ phba->hba_debugfs_root,
+ phba, &lpfc_debugfs_op_dif_err);
+ if (!phba->debug_readApp) {
+ lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT,
+ "0805 Cannot create debugfs readApp\n");
+ goto debug_failed;
+ }
+
+ snprintf(name, sizeof(name), "readRefInjErr");
+ phba->debug_readRef =
+ debugfs_create_file(name, S_IFREG|S_IRUGO|S_IWUSR,
+ phba->hba_debugfs_root,
+ phba, &lpfc_debugfs_op_dif_err);
+ if (!phba->debug_readRef) {
+ lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT,
+ "0806 Cannot create debugfs readApp\n");
+ goto debug_failed;
+ }
+
/* Setup slow ring trace */
if (lpfc_debugfs_max_slow_ring_trc) {
num = lpfc_debugfs_max_slow_ring_trc - 1;
@@ -4090,6 +4247,30 @@ lpfc_debugfs_terminate(struct lpfc_vport *vport)
debugfs_remove(phba->debug_dumpDif); /* dumpDif */
phba->debug_dumpDif = NULL;
}
+ if (phba->debug_InjErrLBA) {
+ debugfs_remove(phba->debug_InjErrLBA); /* InjErrLBA */
+ phba->debug_InjErrLBA = NULL;
+ }
+ if (phba->debug_writeGuard) {
+ debugfs_remove(phba->debug_writeGuard); /* writeGuard */
+ phba->debug_writeGuard = NULL;
+ }
+ if (phba->debug_writeApp) {
+ debugfs_remove(phba->debug_writeApp); /* writeApp */
+ phba->debug_writeApp = NULL;
+ }
+ if (phba->debug_writeRef) {
+ debugfs_remove(phba->debug_writeRef); /* writeRef */
+ phba->debug_writeRef = NULL;
+ }
+ if (phba->debug_readApp) {
+ debugfs_remove(phba->debug_readApp); /* readApp */
+ phba->debug_readApp = NULL;
+ }
+ if (phba->debug_readRef) {
+ debugfs_remove(phba->debug_readRef); /* readRef */
+ phba->debug_readRef = NULL;
+ }
if (phba->slow_ring_trc) {
kfree(phba->slow_ring_trc);
generated by cgit v1.2.3 (git 2.39.0) at 2024-12-18 08:35:52 +0300