diff options
| author |   Benjamin Block <bblock@linux.ibm.com> | 2019-10-25 18:12:45 +0200 |
|---|---|---|
| committer |   Martin K. Petersen <martin.petersen@oracle.com> | 2019-10-28 22:16:14 -0400 |
| commit | 088210233e6fc039fd2c0bfe44b06bb94328d09e (patch) | |
| tree | 41672e76b7d28d277bef85ed44f24e6ab8e4fbcd /drivers/s390/scsi/zfcp_diag.c | |
| parent | scsi: zfcp: diagnostics buffer caching and use for exchange port data (diff) | |
| download | linux-dev-088210233e6fc039fd2c0bfe44b06bb94328d09e.tar.xz linux-dev-088210233e6fc039fd2c0bfe44b06bb94328d09e.zip | |
scsi: zfcp: add diagnostics buffer for exchange config data
In the same vein as the previous patch, add diagnostic data capture for the
Exchange Config Data command.
Link: https://lore.kernel.org/r/7d8ac0a6cad403fa8f8b888693476a84e80a277b.1572018131.git.bblock@linux.ibm.com
Reviewed-by: Steffen Maier <maier@linux.ibm.com>
Signed-off-by: Benjamin Block <bblock@linux.ibm.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Diffstat (limited to 'drivers/s390/scsi/zfcp_diag.c')
| -rw-r--r-- | drivers/s390/scsi/zfcp_diag.c | 14 |
1 files changed, 12 insertions, 2 deletions
diff --git a/drivers/s390/scsi/zfcp_diag.c b/drivers/s390/scsi/zfcp_diag.c index fa1b25f3ec3c..d7d2db85b32e 100644 --- a/drivers/s390/scsi/zfcp_diag.c +++ b/drivers/s390/scsi/zfcp_diag.c @@ -34,6 +34,9 @@ */ int zfcp_diag_adapter_setup(struct zfcp_adapter *const adapter) { + /* set the timestamp so that the first test on age will always fail */ + const unsigned long initial_timestamp = + jiffies - msecs_to_jiffies(ZFCP_DIAG_MAX_AGE); struct zfcp_diag_adapter *diag; struct zfcp_diag_header *hdr; @@ -47,8 +50,15 @@ int zfcp_diag_adapter_setup(struct zfcp_adapter *const adapter) spin_lock_init(&hdr->access_lock); hdr->buffer = &diag->port_data.data; hdr->buffer_size = sizeof(diag->port_data.data); - /* set the timestamp so that the first test on age will always fail */ - hdr->timestamp = jiffies - msecs_to_jiffies(ZFCP_DIAG_MAX_AGE); + hdr->timestamp = initial_timestamp; + + /* setup header for config_data */ + hdr = &diag->config_data.header; + + spin_lock_init(&hdr->access_lock); + hdr->buffer = &diag->config_data.data; + hdr->buffer_size = sizeof(diag->config_data.data); + hdr->timestamp = initial_timestamp; adapter->diagnostics = diag; return 0; |