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| author | James Smart <jsmart2021@gmail.com> | 2021-12-03 16:26:43 -0800 |
|---|---|---|
| committer | Martin K. Petersen <martin.petersen@oracle.com> | 2021-12-06 22:35:37 -0500 |
| commit | 6014a2468f0e49194f612b1f09f99eacee0a409a (patch) | |
| tree | 13335b049336452fbc791e30310f5bbe21f94270 | |
| parent | 05116ef9c4b444f7fdbb56f9e13c2ec941726639 (diff) | |
| download | linux-6014a2468f0e49194f612b1f09f99eacee0a409a.tar.bz2 | |
scsi: lpfc: Add additional debugfs support for CMF
Dump raw CMF parameter information in debugfs cgn_buffer.
Link: https://lore.kernel.org/r/20211204002644.116455-9-jsmart2021@gmail.com
Co-developed-by: Justin Tee <justin.tee@broadcom.com>
Signed-off-by: Justin Tee <justin.tee@broadcom.com>
Signed-off-by: James Smart <jsmart2021@gmail.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
| -rw-r--r-- | drivers/scsi/lpfc/lpfc_debugfs.c | 13 |
1 files changed, 12 insertions, 1 deletions
diff --git a/drivers/scsi/lpfc/lpfc_debugfs.c b/drivers/scsi/lpfc/lpfc_debugfs.c index ab2550ad0597..21152c9a96ef 100644 --- a/drivers/scsi/lpfc/lpfc_debugfs.c +++ b/drivers/scsi/lpfc/lpfc_debugfs.c @@ -5484,7 +5484,7 @@ lpfc_cgn_buffer_read(struct file *file, char __user *buf, size_t nbytes, if (len > (LPFC_CGN_BUF_SIZE - LPFC_DEBUG_OUT_LINE_SZ)) { len += scnprintf(buffer + len, LPFC_CGN_BUF_SIZE - len, "Truncated . . .\n"); - break; + goto out; } len += scnprintf(buffer + len, LPFC_CGN_BUF_SIZE - len, "%03x: %08x %08x %08x %08x " @@ -5495,6 +5495,17 @@ lpfc_cgn_buffer_read(struct file *file, char __user *buf, size_t nbytes, cnt += 32; ptr += 8; } + if (len > (LPFC_CGN_BUF_SIZE - LPFC_DEBUG_OUT_LINE_SZ)) { + len += scnprintf(buffer + len, LPFC_CGN_BUF_SIZE - len, + "Truncated . . .\n"); + goto out; + } + len += scnprintf(buffer + len, LPFC_CGN_BUF_SIZE - len, + "Parameter Data\n"); + ptr = (uint32_t *)&phba->cgn_p; + len += scnprintf(buffer + len, LPFC_CGN_BUF_SIZE - len, + "%08x %08x %08x %08x\n", + *ptr, *(ptr + 1), *(ptr + 2), *(ptr + 3)); out: return simple_read_from_buffer(buf, nbytes, ppos, buffer, len); } |