* [PATCH] [NVMe-CLI] Add Disable IO flag to wdc_dump_dui_data function
@ 2019-04-30 18:48 Jeffrey Lien
2019-05-02 17:07 ` Keith Busch
0 siblings, 1 reply; 2+ messages in thread
From: Jeffrey Lien @ 2019-04-30 18:48 UTC (permalink / raw)
Signed-off-by: Jeff Lien <jeff.lien at wdc.com>
---
plugins/wdc/wdc-nvme.c | 17 ++++++++++++++---
1 file changed, 14 insertions(+), 3 deletions(-)
diff --git a/plugins/wdc/wdc-nvme.c b/plugins/wdc/wdc-nvme.c
index f3744ce..4e9cfa3 100644
--- a/plugins/wdc/wdc-nvme.c
+++ b/plugins/wdc/wdc-nvme.c
@@ -126,6 +126,7 @@
/* Capture Device Unit Info */
#define WDC_NVME_CAP_DUI_HEADER_SIZE 0x400
#define WDC_NVME_CAP_DUI_OPCODE 0xFA
+#define WDC_NVME_CAP_DUI_DISABLE_IO 0x01
#define WDC_NVME_DUI_MAX_SECTION 0x3A
#define WDC_NVME_DUI_MAX_DATA_AREA 0x05
@@ -1061,7 +1062,7 @@ static __u32 wdc_dump_length_e6(int fd, __u32 opcode, __u32 cdw10, __u32 cdw12,
return ret;
}
-static __u32 wdc_dump_dui_data(int fd, __u32 dataLen, __u32 offset, __u8 *dump_data)
+static __u32 wdc_dump_dui_data(int fd, __u32 dataLen, __u32 offset, __u8 *dump_data, bool last_xfer)
{
int ret;
struct nvme_admin_cmd admin_cmd;
@@ -1073,6 +1074,11 @@ static __u32 wdc_dump_dui_data(int fd, __u32 dataLen, __u32 offset, __u8 *dump_d
admin_cmd.data_len = dataLen;
admin_cmd.cdw10 = ((dataLen >> 2) - 1);
admin_cmd.cdw12 = offset;
+ if (last_xfer)
+ admin_cmd.cdw14 = 0;
+ else
+ admin_cmd.cdw14 = WDC_NVME_CAP_DUI_DISABLE_IO;
+
ret = nvme_submit_passthru(fd, NVME_IOCTL_ADMIN_CMD, &admin_cmd);
if (ret != 0) {
@@ -1258,6 +1264,7 @@ static int wdc_do_cap_dui(int fd, char *file, __u32 xfer_size, int data_area)
__s32 log_size = 0;
__s32 total_size = 0;
int i;
+ bool last_xfer = false;
log_hdr = (struct wdc_dui_log_hdr *) malloc(dui_log_hdr_size);
if (log_hdr == NULL) {
@@ -1267,7 +1274,7 @@ static int wdc_do_cap_dui(int fd, char *file, __u32 xfer_size, int data_area)
memset(log_hdr, 0, dui_log_hdr_size);
/* get the dui telemetry and log headers */
- ret = wdc_dump_dui_data(fd, WDC_NVME_CAP_DUI_HEADER_SIZE, 0x00, (__u8 *)log_hdr);
+ ret = wdc_dump_dui_data(fd, WDC_NVME_CAP_DUI_HEADER_SIZE, 0x00, (__u8 *)log_hdr, last_xfer);
if (ret != 0) {
fprintf(stderr, "%s: ERROR : WDC : Get DUI headers failed\n", __func__);
fprintf(stderr, "%s: ERROR : WDC : NVMe Status:%s(%x)\n", __func__, nvme_status_to_string(ret), ret);
@@ -1312,8 +1319,12 @@ static int wdc_do_cap_dui(int fd, char *file, __u32 xfer_size, int data_area)
for(; log_size > 0; log_size -= xfer_size) {
xfer_size = min(xfer_size, log_size);
+ if (log_size <= xfer_size)
+ last_xfer = true;
+
buffer_addr = (__u64)(uintptr_t)dump_data + (__u64)curr_data_offset;
- ret = wdc_dump_dui_data(fd, xfer_size, curr_data_offset, (__u8 *)buffer_addr);
+
+ ret = wdc_dump_dui_data(fd, xfer_size, curr_data_offset, (__u8 *)buffer_addr, last_xfer);
if (ret != 0) {
fprintf(stderr, "%s: ERROR : WDC : Get chunk %d, size = 0x%x, offset = 0x%x, addr = 0x%lx\n",
__func__, i, total_size, curr_data_offset, (long unsigned int)buffer_addr);
--
1.8.3.1
^ permalink raw reply related [flat|nested] 2+ messages in thread
* [PATCH] [NVMe-CLI] Add Disable IO flag to wdc_dump_dui_data function
2019-04-30 18:48 [PATCH] [NVMe-CLI] Add Disable IO flag to wdc_dump_dui_data function Jeffrey Lien
@ 2019-05-02 17:07 ` Keith Busch
0 siblings, 0 replies; 2+ messages in thread
From: Keith Busch @ 2019-05-02 17:07 UTC (permalink / raw)
On Tue, Apr 30, 2019@06:48:32PM +0000, Jeffrey Lien wrote:
> Signed-off-by: Jeff Lien <jeff.lien at wdc.com>
Applied, thanks.
^ permalink raw reply [flat|nested] 2+ messages in thread
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2019-04-30 18:48 [PATCH] [NVMe-CLI] Add Disable IO flag to wdc_dump_dui_data function Jeffrey Lien
2019-05-02 17:07 ` Keith Busch
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