summaryrefslogtreecommitdiffstats
path: root/kernel/drivers/s390/scsi/zfcp_dbf.h
diff options
context:
space:
mode:
authorYunhong Jiang <yunhong.jiang@linux.intel.com>2017-03-08 23:13:28 -0800
committerYunhong Jiang <yunhong.jiang@linux.intel.com>2017-03-08 23:36:15 -0800
commit52f993b8e89487ec9ee15a7fb4979e0f09a45b27 (patch)
treed65304486afe0bea4a311c783c0d72791c8c0aa2 /kernel/drivers/s390/scsi/zfcp_dbf.h
parentc189ccac5702322ed843fe17057035b7222a59b6 (diff)
Upgrade to 4.4.50-rt62
The current kernel is based on rt kernel v4.4.6-rt14. We will upgrade it to 4.4.50-rt62. The command to achieve it is: a) Clone a git repo from git://git.kernel.org/pub/scm/linux/kernel/git/rt/linux-stable-rt.git b) Get the diff between this two changesets: git diff 640eca2901f3435e616157b11379d3223a44b391 705619beeea1b0b48219a683fd1a901a86fdaf5e where the two commits are: [yjiang5@jnakajim-build linux-stable-rt]$ git show --oneline --name-only 640eca2901f3435e616157b11379d3223a44b391 640eca2901f3 v4.4.6-rt14 localversion-rt [yjiang5@jnakajim-build linux-stable-rt]$ git show --oneline --name-only 705619beeea1b0b48219a683fd1a901a86fdaf5e 705619beeea1 Linux 4.4.50-rt62 localversion-rt c) One patch has been backported thus revert the patch before applying. filterdiff -p1 -x scripts/package/Makefile ~/tmp/v4.4.6-rt14-4.4.50-rt62.diff |patch -p1 --dry-run Upstream status: backport Change-Id: I244d57a32f6066e5a5b9915f9fbf99e7bbca6e01 Signed-off-by: Yunhong Jiang <yunhong.jiang@linux.intel.com>
Diffstat (limited to 'kernel/drivers/s390/scsi/zfcp_dbf.h')
-rw-r--r--kernel/drivers/s390/scsi/zfcp_dbf.h53
1 files changed, 49 insertions, 4 deletions
diff --git a/kernel/drivers/s390/scsi/zfcp_dbf.h b/kernel/drivers/s390/scsi/zfcp_dbf.h
index 0be3d4868..db186d44c 100644
--- a/kernel/drivers/s390/scsi/zfcp_dbf.h
+++ b/kernel/drivers/s390/scsi/zfcp_dbf.h
@@ -2,7 +2,7 @@
* zfcp device driver
* debug feature declarations
*
- * Copyright IBM Corp. 2008, 2010
+ * Copyright IBM Corp. 2008, 2016
*/
#ifndef ZFCP_DBF_H
@@ -17,6 +17,11 @@
#define ZFCP_DBF_INVALID_LUN 0xFFFFFFFFFFFFFFFFull
+enum zfcp_dbf_pseudo_erp_act_type {
+ ZFCP_PSEUDO_ERP_ACTION_RPORT_ADD = 0xff,
+ ZFCP_PSEUDO_ERP_ACTION_RPORT_DEL = 0xfe,
+};
+
/**
* struct zfcp_dbf_rec_trigger - trace record for triggered recovery action
* @ready: number of ready recovery actions
@@ -110,6 +115,7 @@ struct zfcp_dbf_san {
u32 d_id;
#define ZFCP_DBF_SAN_MAX_PAYLOAD (FC_CT_HDR_LEN + 32)
char payload[ZFCP_DBF_SAN_MAX_PAYLOAD];
+ u16 pl_len;
} __packed;
/**
@@ -126,6 +132,8 @@ struct zfcp_dbf_hba_res {
u8 prot_status_qual[FSF_PROT_STATUS_QUAL_SIZE];
u32 fsf_status;
u8 fsf_status_qual[FSF_STATUS_QUALIFIER_SIZE];
+ u32 port_handle;
+ u32 lun_handle;
} __packed;
/**
@@ -275,11 +283,35 @@ struct zfcp_dbf {
struct zfcp_dbf_scsi scsi_buf;
};
+/**
+ * zfcp_dbf_hba_fsf_resp_suppress - true if we should not trace by default
+ * @req: request that has been completed
+ *
+ * Returns true if FCP response with only benign residual under count.
+ */
+static inline
+bool zfcp_dbf_hba_fsf_resp_suppress(struct zfcp_fsf_req *req)
+{
+ struct fsf_qtcb *qtcb = req->qtcb;
+ u32 fsf_stat = qtcb->header.fsf_status;
+ struct fcp_resp *fcp_rsp;
+ u8 rsp_flags, fr_status;
+
+ if (qtcb->prefix.qtcb_type != FSF_IO_COMMAND)
+ return false; /* not an FCP response */
+ fcp_rsp = (struct fcp_resp *)&qtcb->bottom.io.fcp_rsp;
+ rsp_flags = fcp_rsp->fr_flags;
+ fr_status = fcp_rsp->fr_status;
+ return (fsf_stat == FSF_FCP_RSP_AVAILABLE) &&
+ (rsp_flags == FCP_RESID_UNDER) &&
+ (fr_status == SAM_STAT_GOOD);
+}
+
static inline
void zfcp_dbf_hba_fsf_resp(char *tag, int level, struct zfcp_fsf_req *req)
{
if (debug_level_enabled(req->adapter->dbf->hba, level))
- zfcp_dbf_hba_fsf_res(tag, req);
+ zfcp_dbf_hba_fsf_res(tag, level, req);
}
/**
@@ -296,7 +328,9 @@ void zfcp_dbf_hba_fsf_response(struct zfcp_fsf_req *req)
zfcp_dbf_hba_fsf_resp("fs_perr", 1, req);
} else if (qtcb->header.fsf_status != FSF_GOOD) {
- zfcp_dbf_hba_fsf_resp("fs_ferr", 1, req);
+ zfcp_dbf_hba_fsf_resp("fs_ferr",
+ zfcp_dbf_hba_fsf_resp_suppress(req)
+ ? 5 : 1, req);
} else if ((req->fsf_command == FSF_QTCB_OPEN_PORT_WITH_DID) ||
(req->fsf_command == FSF_QTCB_OPEN_LUN)) {
@@ -318,7 +352,7 @@ void _zfcp_dbf_scsi(char *tag, int level, struct scsi_cmnd *scmd,
scmd->device->host->hostdata[0];
if (debug_level_enabled(adapter->dbf->scsi, level))
- zfcp_dbf_scsi(tag, scmd, req);
+ zfcp_dbf_scsi(tag, level, scmd, req);
}
/**
@@ -380,4 +414,15 @@ void zfcp_dbf_scsi_devreset(char *tag, struct scsi_cmnd *scmnd, u8 flag)
_zfcp_dbf_scsi(tmp_tag, 1, scmnd, NULL);
}
+/**
+ * zfcp_dbf_scsi_nullcmnd() - trace NULLify of SCSI command in dev/tgt-reset.
+ * @scmnd: SCSI command that was NULLified.
+ * @fsf_req: request that owned @scmnd.
+ */
+static inline void zfcp_dbf_scsi_nullcmnd(struct scsi_cmnd *scmnd,
+ struct zfcp_fsf_req *fsf_req)
+{
+ _zfcp_dbf_scsi("scfc__1", 3, scmnd, fsf_req);
+}
+
#endif /* ZFCP_DBF_H */