[PATCH 00/12] lpfc: Update lpfc to revision 12.8.0.0

[PATCH 00/12] lpfc: Update lpfc to revision 12.8.0.0

[James Smart]

Update lpfc to revision 12.8.0.0

Patch set contains mainly fixes, a change to QD default, and a few
cleanups.

The patches were cut against Martin's 5.7/scsi-queue tree

-- james

James Smart (12):
  lpfc: Fix kasan slab-out-of-bounds error in lpfc_unreg_login
  lpfc: Fix lockdep error - register non-static key
  lpfc: Fix lpfc overwrite of sg_cnt field in nvmefc_tgt_fcp_req
  lpfc: Fix scsi host template for SLI3 vports
  lpfc: Fix crash after handling a pci error.
  lpfc: Fix update of wq consumer index in lpfc_sli4_wq_release
  lpfc: Fix crash in target side cable pulls hitting WAIT_FOR_UNREG
  lpfc: Fix erroneous cpu limit of 128 on I/O statistics
  lpfc: Change default SCSI LUN QD to 64
  lpfc: Make debugfs ktime stats generic for NVME and SCSI
  lpfc: Remove prototype FIPS/DSS options from SLI-3
  lpfc: Update lpfc version to 12.8.0.0

 drivers/scsi/lpfc/lpfc.h         |  25 ++-
 drivers/scsi/lpfc/lpfc_attr.c    |  71 +--------
 drivers/scsi/lpfc/lpfc_crtn.h    |   3 +-
 drivers/scsi/lpfc/lpfc_debugfs.c | 333 ++++++++++++++++++++++++++-------------
 drivers/scsi/lpfc/lpfc_debugfs.h |   3 +-
 drivers/scsi/lpfc/lpfc_hw.h      |  20 +--
 drivers/scsi/lpfc/lpfc_init.c    | 106 +++++++++----
 drivers/scsi/lpfc/lpfc_mbox.c    |   2 -
 drivers/scsi/lpfc/lpfc_nvme.c    | 147 ++++-------------
 drivers/scsi/lpfc/lpfc_nvmet.c   |  62 ++++----
 drivers/scsi/lpfc/lpfc_scsi.c    |  90 +++--------
 drivers/scsi/lpfc/lpfc_sli.c     |  47 ++----
 drivers/scsi/lpfc/lpfc_sli.h     |   2 +-
 drivers/scsi/lpfc/lpfc_sli4.h    |  19 ++-
 drivers/scsi/lpfc/lpfc_version.h |   2 +-
 15 files changed, 441 insertions(+), 491 deletions(-)

-- 
2.16.4

[PATCH 01/12] lpfc: Fix kasan slab-out-of-bounds error in lpfc_unreg_login

[James Smart]

The following kasan bug was called out:
 BUG: KASAN: slab-out-of-bounds in lpfc_unreg_login+0x7c/0xc0 [lpfc]
 Read of size 2 at addr ffff889fc7c50a22 by task lpfc_worker_3/6676
 ...
 Call Trace:
 dump_stack+0x96/0xe0
 ? lpfc_unreg_login+0x7c/0xc0 [lpfc]
 print_address_description.constprop.6+0x1b/0x220
 ? lpfc_unreg_login+0x7c/0xc0 [lpfc]
 ? lpfc_unreg_login+0x7c/0xc0 [lpfc]
 __kasan_report.cold.9+0x37/0x7c
 ? lpfc_unreg_login+0x7c/0xc0 [lpfc]
 kasan_report+0xe/0x20
 lpfc_unreg_login+0x7c/0xc0 [lpfc]
 lpfc_sli_def_mbox_cmpl+0x334/0x430 [lpfc]
 ...

When processing the completion of a "Reg Rpi" login mailbox command in
lpfc_sli_def_mbox_cmpl, a call may be made to lpfc_unreg_login. The vpi
is extracted from the completing mailbox context and passed as an input
for the next. However, the vpi stored in the mailbox command context is
an absolute vpi, which for SLI4 represents both base + offset.  When used
with a non-zero base component, (function id > 0) this results in an
out-of-range access beyond the allocated  phba->vpi_ids array.

Fix by subtracting the function's base value to get an accurate vpi number.

Signed-off-by: Dick Kennedy <dick.kennedy@broadcom.com>
Signed-off-by: James Smart <jsmart2021@gmail.com>
---
 drivers/scsi/lpfc/lpfc_sli.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/drivers/scsi/lpfc/lpfc_sli.c b/drivers/scsi/lpfc/lpfc_sli.c
index 0b26b5c0527e..4fc14bebb76e 100644
--- a/drivers/scsi/lpfc/lpfc_sli.c
+++ b/drivers/scsi/lpfc/lpfc_sli.c
@@ -2511,6 +2511,8 @@ lpfc_sli_def_mbox_cmpl(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb)
 	    !pmb->u.mb.mbxStatus) {
 		rpi = pmb->u.mb.un.varWords[0];
 		vpi = pmb->u.mb.un.varRegLogin.vpi;
+		if (phba->sli_rev == LPFC_SLI_REV4)
+			vpi -= phba->sli4_hba.max_cfg_param.vpi_base;
 		lpfc_unreg_login(phba, vpi, rpi, pmb);
 		pmb->vport = vport;
 		pmb->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
-- 
2.16.4

[PATCH 02/12] lpfc: Fix lockdep error - register non-static key

[James Smart]

The following lockdep error was reported when unloading the lpfc driver:

  INFO: trying to register non-static key.
  the code is fine but needs lockdep annotation.
  turning off the locking correctness validator.
  ...
  Call Trace:
  dump_stack+0x96/0xe0
  register_lock_class+0x8b8/0x8c0
  ? lockdep_hardirqs_on+0x190/0x280
  ? is_dynamic_key+0x150/0x150
  ? wait_for_completion_interruptible+0x2a0/0x2a0
  ? wake_up_q+0xd0/0xd0
  __lock_acquire+0xda/0x21a0
  ? register_lock_class+0x8c0/0x8c0
  ? synchronize_rcu_expedited+0x500/0x500
  ? __call_rcu+0x850/0x850
  lock_acquire+0xf3/0x1f0
  ? del_timer_sync+0x5/0xb0
  del_timer_sync+0x3c/0xb0
  ? del_timer_sync+0x5/0xb0
  lpfc_pci_remove_one.cold.102+0x8b7/0x935 [lpfc]
  ...

Unloading the driver resulted in a call to del_timer_sync for the
cpuhp_poll_timer. However the call to setup the timer had never been
made, so the timer structures used by lockdep checking were not
initialized.

Unconditionally call setup_timer for the cpuhp_poll_timer during
driver initialization. Calls to start the timer remain "as needed".

Signed-off-by: Dick Kennedy <dick.kennedy@broadcom.com>
Signed-off-by: James Smart <jsmart2021@gmail.com>
---
 drivers/scsi/lpfc/lpfc_init.c | 5 ++---
 drivers/scsi/lpfc/lpfc_sli.c  | 6 ++----
 2 files changed, 4 insertions(+), 7 deletions(-)

diff --git a/drivers/scsi/lpfc/lpfc_init.c b/drivers/scsi/lpfc/lpfc_init.c
index 9d03e9b71efb..6eb3112a45a2 100644
--- a/drivers/scsi/lpfc/lpfc_init.c
+++ b/drivers/scsi/lpfc/lpfc_init.c
@@ -11173,11 +11173,9 @@ static void lpfc_cpuhp_add(struct lpfc_hba *phba)
 
 	rcu_read_lock();
 
-	if (!list_empty(&phba->poll_list)) {
-		timer_setup(&phba->cpuhp_poll_timer, lpfc_sli4_poll_hbtimer, 0);
+	if (!list_empty(&phba->poll_list))
 		mod_timer(&phba->cpuhp_poll_timer,
 			  jiffies + msecs_to_jiffies(LPFC_POLL_HB));
-	}
 
 	rcu_read_unlock();
 
@@ -13145,6 +13143,7 @@ lpfc_pci_probe_one_s4(struct pci_dev *pdev, const struct pci_device_id *pid)
 	lpfc_sli4_ras_setup(phba);
 
 	INIT_LIST_HEAD(&phba->poll_list);
+	timer_setup(&phba->cpuhp_poll_timer, lpfc_sli4_poll_hbtimer, 0);
 	cpuhp_state_add_instance_nocalls(lpfc_cpuhp_state, &phba->cpuhp);
 
 	return 0;
diff --git a/drivers/scsi/lpfc/lpfc_sli.c b/drivers/scsi/lpfc/lpfc_sli.c
index 4fc14bebb76e..08bf2f0a1065 100644
--- a/drivers/scsi/lpfc/lpfc_sli.c
+++ b/drivers/scsi/lpfc/lpfc_sli.c
@@ -14444,12 +14444,10 @@ static inline void lpfc_sli4_add_to_poll_list(struct lpfc_queue *eq)
 {
 	struct lpfc_hba *phba = eq->phba;
 
-	if (list_empty(&phba->poll_list)) {
-		timer_setup(&phba->cpuhp_poll_timer, lpfc_sli4_poll_hbtimer, 0);
-		/* kickstart slowpath processing for this eq */
+	/* kickstart slowpath processing if needed */
+	if (list_empty(&phba->poll_list))
 		mod_timer(&phba->cpuhp_poll_timer,
 			  jiffies + msecs_to_jiffies(LPFC_POLL_HB));
-	}
 
 	list_add_rcu(&eq->_poll_list, &phba->poll_list);
 	synchronize_rcu();
-- 
2.16.4

[PATCH 03/12] lpfc: Fix lpfc overwrite of sg_cnt field in nvmefc_tgt_fcp_req

[James Smart]

In lpfc_nvmet_prep_fcp_wqe() the line "rsp->sg_cnt = 0" is modifying the
transport's data structure. This may result in the transport believing
the s/g list was already freed, thus may not unmap/free it properly.
Lpfc driver should not modity the transport data structure.

The zeroing of the sg_cnt is to avoid use of the transport's sgl in a
subsequent loop where the driver builds the necessary requests for the
adapter firmware to complete the IO.

Change LLDD to use a local copy of the transport sg_cnt when building
requests to be passed to the adapter fw.

Signed-off-by: Dick Kennedy <dick.kennedy@broadcom.com>
Signed-off-by: James Smart <jsmart2021@gmail.com>
---
 drivers/scsi/lpfc/lpfc_nvmet.c | 7 ++++---
 1 file changed, 4 insertions(+), 3 deletions(-)

diff --git a/drivers/scsi/lpfc/lpfc_nvmet.c b/drivers/scsi/lpfc/lpfc_nvmet.c
index 9dc9afe1c255..ae89d1450912 100644
--- a/drivers/scsi/lpfc/lpfc_nvmet.c
+++ b/drivers/scsi/lpfc/lpfc_nvmet.c
@@ -2598,7 +2598,7 @@ lpfc_nvmet_prep_fcp_wqe(struct lpfc_hba *phba,
 	union lpfc_wqe128 *wqe;
 	struct ulp_bde64 *bde;
 	dma_addr_t physaddr;
-	int i, cnt;
+	int i, cnt, nsegs;
 	int do_pbde;
 	int xc = 1;
 
@@ -2629,6 +2629,7 @@ lpfc_nvmet_prep_fcp_wqe(struct lpfc_hba *phba,
 				phba->cfg_nvme_seg_cnt);
 		return NULL;
 	}
+	nsegs = rsp->sg_cnt;
 
 	tgtp = (struct lpfc_nvmet_tgtport *)phba->targetport->private;
 	nvmewqe = ctxp->wqeq;
@@ -2868,7 +2869,7 @@ lpfc_nvmet_prep_fcp_wqe(struct lpfc_hba *phba,
 		wqe->fcp_trsp.rsvd_12_15[0] = 0;
 
 		/* Use rspbuf, NOT sg list */
-		rsp->sg_cnt = 0;
+		nsegs = 0;
 		sgl->word2 = 0;
 		atomic_inc(&tgtp->xmt_fcp_rsp);
 		break;
@@ -2885,7 +2886,7 @@ lpfc_nvmet_prep_fcp_wqe(struct lpfc_hba *phba,
 	nvmewqe->drvrTimeout = (phba->fc_ratov * 3) + LPFC_DRVR_TIMEOUT;
 	nvmewqe->context1 = ndlp;
 
-	for_each_sg(rsp->sg, sgel, rsp->sg_cnt, i) {
+	for_each_sg(rsp->sg, sgel, nsegs, i) {
 		physaddr = sg_dma_address(sgel);
 		cnt = sg_dma_len(sgel);
 		sgl->addr_hi = putPaddrHigh(physaddr);
-- 
2.16.4

[PATCH 04/12] lpfc: Fix scsi host template for SLI3 vports

[James Smart]

SCSI layer sends driver IOs with more s/g segments than driver can
handle.  This results in "Too many sg segments from dma_map_sg. Config
64, seg_cnt 219" error messages from the lpfc_scsi_prep_dma_buf_s3()
routine.

The was due to use the driver using individual templates for pport and
vport, host reset enabled or not, nvme vs scsi, etc. In the end, there
was a combination for a vport that didn't match the pport.

Rather than enumerating more templates and more discretionary
assignments, revert to a base template that is copied to a template
specific to the pport/vport. Then, based on role, attributes and sli
type, modify the fields that are different for that port.  Added a log
message to lpfc_create_port to validate values.

Signed-off-by: Dick Kennedy <dick.kennedy@broadcom.com>
Signed-off-by: James Smart <jsmart2021@gmail.com>
---
 drivers/scsi/lpfc/lpfc.h      |  5 +++
 drivers/scsi/lpfc/lpfc_crtn.h |  2 --
 drivers/scsi/lpfc/lpfc_init.c | 73 +++++++++++++++++++++++++++++--------------
 drivers/scsi/lpfc/lpfc_scsi.c | 48 ----------------------------
 4 files changed, 54 insertions(+), 74 deletions(-)

diff --git a/drivers/scsi/lpfc/lpfc.h b/drivers/scsi/lpfc/lpfc.h
index 357fdec06bae..e940a49f9f02 100644
--- a/drivers/scsi/lpfc/lpfc.h
+++ b/drivers/scsi/lpfc/lpfc.h
@@ -1225,6 +1225,11 @@ struct lpfc_hba {
 #define LPFC_POLL_SLOWPATH	1	/* called from slowpath */
 
 	char os_host_name[MAXHOSTNAMELEN];
+
+	/* SCSI host template information - for physical port */
+	struct scsi_host_template port_template;
+	/* SCSI host template information - for all vports */
+	struct scsi_host_template vport_template;
 };
 
 static inline struct Scsi_Host *
diff --git a/drivers/scsi/lpfc/lpfc_crtn.h b/drivers/scsi/lpfc/lpfc_crtn.h
index a450477a7e00..a0ef3bac0612 100644
--- a/drivers/scsi/lpfc/lpfc_crtn.h
+++ b/drivers/scsi/lpfc/lpfc_crtn.h
@@ -404,9 +404,7 @@ void lpfc_free_sysfs_attr(struct lpfc_vport *);
 extern struct device_attribute *lpfc_hba_attrs[];
 extern struct device_attribute *lpfc_vport_attrs[];
 extern struct scsi_host_template lpfc_template;
-extern struct scsi_host_template lpfc_template_no_hr;
 extern struct scsi_host_template lpfc_template_nvme;
-extern struct scsi_host_template lpfc_vport_template;
 extern struct fc_function_template lpfc_transport_functions;
 extern struct fc_function_template lpfc_vport_transport_functions;
 
diff --git a/drivers/scsi/lpfc/lpfc_init.c b/drivers/scsi/lpfc/lpfc_init.c
index 6eb3112a45a2..1dadf247a0aa 100644
--- a/drivers/scsi/lpfc/lpfc_init.c
+++ b/drivers/scsi/lpfc/lpfc_init.c
@@ -4231,6 +4231,7 @@ lpfc_create_port(struct lpfc_hba *phba, int instance, struct device *dev)
 {
 	struct lpfc_vport *vport;
 	struct Scsi_Host  *shost = NULL;
+	struct scsi_host_template *template;
 	int error = 0;
 	int i;
 	uint64_t wwn;
@@ -4259,22 +4260,50 @@ lpfc_create_port(struct lpfc_hba *phba, int instance, struct device *dev)
 		}
 	}
 
-	if (phba->cfg_enable_fc4_type & LPFC_ENABLE_FCP) {
-		if (dev != &phba->pcidev->dev) {
-			shost = scsi_host_alloc(&lpfc_vport_template,
-						sizeof(struct lpfc_vport));
+	/* Seed template for SCSI host registration */
+	if (dev == &phba->pcidev->dev) {
+		template = &phba->port_template;
+
+		if (phba->cfg_enable_fc4_type & LPFC_ENABLE_FCP) {
+			/* Seed physical port template */
+			memcpy(template, &lpfc_template, sizeof(*template));
+
+			if (use_no_reset_hba) {
+				/* template is for a no reset SCSI Host */
+				template->max_sectors = 0xffff;
+				template->eh_host_reset_handler = NULL;
+			}
+
+			/* Template for all vports this physical port creates */
+			memcpy(&phba->vport_template, &lpfc_template,
+			       sizeof(*template));
+			phba->vport_template.max_sectors = 0xffff;
+			phba->vport_template.shost_attrs = lpfc_vport_attrs;
+			phba->vport_template.eh_bus_reset_handler = NULL;
+			phba->vport_template.eh_host_reset_handler = NULL;
+			phba->vport_template.vendor_id = 0;
+
+			/* Initialize the host templates with updated value */
+			if (phba->sli_rev == LPFC_SLI_REV4) {
+				template->sg_tablesize = phba->cfg_scsi_seg_cnt;
+				phba->vport_template.sg_tablesize =
+					phba->cfg_scsi_seg_cnt;
+			} else {
+				template->sg_tablesize = phba->cfg_sg_seg_cnt;
+				phba->vport_template.sg_tablesize =
+					phba->cfg_sg_seg_cnt;
+			}
+
 		} else {
-			if (!use_no_reset_hba)
-				shost = scsi_host_alloc(&lpfc_template,
-						sizeof(struct lpfc_vport));
-			else
-				shost = scsi_host_alloc(&lpfc_template_no_hr,
-						sizeof(struct lpfc_vport));
+			/* NVMET is for physical port only */
+			memcpy(template, &lpfc_template_nvme,
+			       sizeof(*template));
 		}
-	} else if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) {
-		shost = scsi_host_alloc(&lpfc_template_nvme,
-					sizeof(struct lpfc_vport));
+	} else {
+		template = &phba->vport_template;
 	}
+
+	shost = scsi_host_alloc(template, sizeof(struct lpfc_vport));
 	if (!shost)
 		goto out;
 
@@ -4329,6 +4358,12 @@ lpfc_create_port(struct lpfc_hba *phba, int instance, struct device *dev)
 		vport->port_type = LPFC_PHYSICAL_PORT;
 	}
 
+	lpfc_printf_log(phba, KERN_INFO, LOG_INIT | LOG_FCP,
+			"9081 CreatePort TMPLATE type %x TBLsize %d "
+			"SEGcnt %d/%d\n",
+			vport->port_type, shost->sg_tablesize,
+			phba->cfg_scsi_seg_cnt, phba->cfg_sg_seg_cnt);
+
 	/* Initialize all internally managed lists. */
 	INIT_LIST_HEAD(&vport->fc_nodes);
 	INIT_LIST_HEAD(&vport->rcv_buffer_list);
@@ -6301,11 +6336,6 @@ lpfc_sli_driver_resource_setup(struct lpfc_hba *phba)
 	 * used to create the sg_dma_buf_pool must be dynamically calculated.
 	 */
 
-	/* Initialize the host templates the configured values. */
-	lpfc_vport_template.sg_tablesize = phba->cfg_sg_seg_cnt;
-	lpfc_template_no_hr.sg_tablesize = phba->cfg_sg_seg_cnt;
-	lpfc_template.sg_tablesize = phba->cfg_sg_seg_cnt;
-
 	if (phba->sli_rev == LPFC_SLI_REV4)
 		entry_sz = sizeof(struct sli4_sge);
 	else
@@ -6346,7 +6376,7 @@ lpfc_sli_driver_resource_setup(struct lpfc_hba *phba)
 	}
 
 	lpfc_printf_log(phba, KERN_INFO, LOG_INIT | LOG_FCP,
-			"9088 sg_tablesize:%d dmabuf_size:%d total_bde:%d\n",
+			"9088 INIT sg_tablesize:%d dmabuf_size:%d total_bde:%d\n",
 			phba->cfg_sg_seg_cnt, phba->cfg_sg_dma_buf_size,
 			phba->cfg_total_seg_cnt);
 
@@ -6816,11 +6846,6 @@ lpfc_sli4_driver_resource_setup(struct lpfc_hba *phba)
 			phba->cfg_nvme_seg_cnt = phba->cfg_sg_seg_cnt;
 	}
 
-	/* Initialize the host templates with the updated values. */
-	lpfc_vport_template.sg_tablesize = phba->cfg_scsi_seg_cnt;
-	lpfc_template.sg_tablesize = phba->cfg_scsi_seg_cnt;
-	lpfc_template_no_hr.sg_tablesize = phba->cfg_scsi_seg_cnt;
-
 	lpfc_printf_log(phba, KERN_INFO, LOG_INIT | LOG_FCP,
 			"9087 sg_seg_cnt:%d dmabuf_size:%d "
 			"total:%d scsi:%d nvme:%d\n",
diff --git a/drivers/scsi/lpfc/lpfc_scsi.c b/drivers/scsi/lpfc/lpfc_scsi.c
index 0fc9a242bc65..be62795715f7 100644
--- a/drivers/scsi/lpfc/lpfc_scsi.c
+++ b/drivers/scsi/lpfc/lpfc_scsi.c
@@ -6023,31 +6023,6 @@ struct scsi_host_template lpfc_template_nvme = {
 	.track_queue_depth	= 0,
 };
 
-struct scsi_host_template lpfc_template_no_hr = {
-	.module			= THIS_MODULE,
-	.name			= LPFC_DRIVER_NAME,
-	.proc_name		= LPFC_DRIVER_NAME,
-	.info			= lpfc_info,
-	.queuecommand		= lpfc_queuecommand,
-	.eh_timed_out		= fc_eh_timed_out,
-	.eh_abort_handler	= lpfc_abort_handler,
-	.eh_device_reset_handler = lpfc_device_reset_handler,
-	.eh_target_reset_handler = lpfc_target_reset_handler,
-	.eh_bus_reset_handler	= lpfc_bus_reset_handler,
-	.slave_alloc		= lpfc_slave_alloc,
-	.slave_configure	= lpfc_slave_configure,
-	.slave_destroy		= lpfc_slave_destroy,
-	.scan_finished		= lpfc_scan_finished,
-	.this_id		= -1,
-	.sg_tablesize		= LPFC_DEFAULT_SG_SEG_CNT,
-	.cmd_per_lun		= LPFC_CMD_PER_LUN,
-	.shost_attrs		= lpfc_hba_attrs,
-	.max_sectors		= 0xFFFFFFFF,
-	.vendor_id		= LPFC_NL_VENDOR_ID,
-	.change_queue_depth	= scsi_change_queue_depth,
-	.track_queue_depth	= 1,
-};
-
 struct scsi_host_template lpfc_template = {
 	.module			= THIS_MODULE,
 	.name			= LPFC_DRIVER_NAME,
@@ -6073,26 +6048,3 @@ struct scsi_host_template lpfc_template = {
 	.change_queue_depth	= scsi_change_queue_depth,
 	.track_queue_depth	= 1,
 };
-
-struct scsi_host_template lpfc_vport_template = {
-	.module			= THIS_MODULE,
-	.name			= LPFC_DRIVER_NAME,
-	.proc_name		= LPFC_DRIVER_NAME,
-	.info			= lpfc_info,
-	.queuecommand		= lpfc_queuecommand,
-	.eh_timed_out		= fc_eh_timed_out,
-	.eh_abort_handler	= lpfc_abort_handler,
-	.eh_device_reset_handler = lpfc_device_reset_handler,
-	.eh_target_reset_handler = lpfc_target_reset_handler,
-	.slave_alloc		= lpfc_slave_alloc,
-	.slave_configure	= lpfc_slave_configure,
-	.slave_destroy		= lpfc_slave_destroy,
-	.scan_finished		= lpfc_scan_finished,
-	.this_id		= -1,
-	.sg_tablesize		= LPFC_DEFAULT_SG_SEG_CNT,
-	.cmd_per_lun		= LPFC_CMD_PER_LUN,
-	.shost_attrs		= lpfc_vport_attrs,
-	.max_sectors		= 0xFFFF,
-	.change_queue_depth	= scsi_change_queue_depth,
-	.track_queue_depth	= 1,
-};
-- 
2.16.4

[PATCH 05/12] lpfc: Fix crash after handling a pci error.

[James Smart]

Injecting EEH on a 32GB card is causing kernel oops

The pci error handler is doing an IO flush and the offline code is also
doing an IO flush. When the 1st flush is complete the hdwq is destroyed
(freed), yet the second flush accesses the hdwq and crashes.

Added a check in lpfc_sli4_fush_io_rings to check both the HBA_IOQ_FLUSH
flag and the hdwq pointer to see if it is already set and not already
freed.

Signed-off-by: Dick Kennedy <dick.kennedy@broadcom.com>
Signed-off-by: James Smart <jsmart2021@gmail.com>
---
 drivers/scsi/lpfc/lpfc_sli.c | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/drivers/scsi/lpfc/lpfc_sli.c b/drivers/scsi/lpfc/lpfc_sli.c
index 08bf2f0a1065..780ff187e9a3 100644
--- a/drivers/scsi/lpfc/lpfc_sli.c
+++ b/drivers/scsi/lpfc/lpfc_sli.c
@@ -4046,6 +4046,11 @@ lpfc_sli_flush_io_rings(struct lpfc_hba *phba)
 	struct lpfc_iocbq *piocb, *next_iocb;
 
 	spin_lock_irq(&phba->hbalock);
+	if (phba->hba_flag & HBA_IOQ_FLUSH ||
+	    !phba->sli4_hba.hdwq) {
+		spin_unlock_irq(&phba->hbalock);
+		return;
+	}
 	/* Indicate the I/O queues are flushed */
 	phba->hba_flag |= HBA_IOQ_FLUSH;
 	spin_unlock_irq(&phba->hbalock);
-- 
2.16.4

[PATCH 06/12] lpfc: Fix update of wq consumer index in lpfc_sli4_wq_release

[James Smart]

The lpfc_sli4_wq_release() routine iterates for each interim
value when updating the wq consuemr index.  This wastes cycles
and possibly confuses things as thevalue itterates (and the modulo
logic is being applied).

There's no reason for this. Just set it to the value from the hw.

Signed-off-by: Dick Kennedy <dick.kennedy@broadcom.com>
Signed-off-by: James Smart <jsmart2021@gmail.com>
---
 drivers/scsi/lpfc/lpfc_sli.c | 17 ++++-------------
 1 file changed, 4 insertions(+), 13 deletions(-)

diff --git a/drivers/scsi/lpfc/lpfc_sli.c b/drivers/scsi/lpfc/lpfc_sli.c
index 780ff187e9a3..52ccaebd6f2c 100644
--- a/drivers/scsi/lpfc/lpfc_sli.c
+++ b/drivers/scsi/lpfc/lpfc_sli.c
@@ -230,25 +230,16 @@ lpfc_sli4_wq_put(struct lpfc_queue *q, union lpfc_wqe128 *wqe)
  * This routine will update the HBA index of a queue to reflect consumption of
  * Work Queue Entries by the HBA. When the HBA indicates that it has consumed
  * an entry the host calls this function to update the queue's internal
- * pointers. This routine returns the number of entries that were consumed by
- * the HBA.
+ * pointers.
  **/
-static uint32_t
+static void
 lpfc_sli4_wq_release(struct lpfc_queue *q, uint32_t index)
 {
-	uint32_t released = 0;
-
 	/* sanity check on queue memory */
 	if (unlikely(!q))
-		return 0;
+		return;
 
-	if (q->hba_index == index)
-		return 0;
-	do {
-		q->hba_index = ((q->hba_index + 1) % q->entry_count);
-		released++;
-	} while (q->hba_index != index);
-	return released;
+	q->hba_index = index;
 }
 
 /**
-- 
2.16.4

[PATCH 07/12] lpfc: Fix crash in target side cable pulls hitting WAIT_FOR_UNREG

[James Smart]

Kernel is crashing with the following stacktrace:
  BUG: unable to handle kernel NULL pointer dereference at
    00000000000005bc
  IP: lpfc_nvme_register_port+0x1a8/0x3a0 [lpfc]
  ...
  Call Trace:
  lpfc_nlp_state_cleanup+0x2b2/0x500 [lpfc]
  lpfc_nlp_set_state+0xd7/0x1a0 [lpfc]
  lpfc_cmpl_prli_prli_issue+0x1f7/0x450 [lpfc]
  lpfc_disc_state_machine+0x7a/0x1e0 [lpfc]
  lpfc_cmpl_els_prli+0x16f/0x1e0 [lpfc]
  lpfc_sli_sp_handle_rspiocb+0x5b2/0x690 [lpfc]
  lpfc_sli_handle_slow_ring_event_s4+0x182/0x230 [lpfc]
  lpfc_do_work+0x87f/0x1570 [lpfc]
  kthread+0x10d/0x130
  ret_from_fork+0x35/0x40

During target side fault injections, it is possible to hit the
NLP_WAIT_FOR_UNREG case in lpfc_nvme_remoteport_delete. A prior commit
fixed a rebind and delete race condition, but called lpfc_nlp_put
unconditionally. This triggered a deletion and the crash.

Fix by movng nlp_put to inside the NLP_WAIT_FOR_UNREG case, where the nlp
will be being unregistered/removed. Leave the reference if the flag isn't
set.

Fixes: 	b15bd3e6212e ("scsi: lpfc: Fix nvme remoteport registration race conditions")
Signed-off-by: Dick Kennedy <dick.kennedy@broadcom.com>
Signed-off-by: James Smart <jsmart2021@gmail.com>
---
 drivers/scsi/lpfc/lpfc_nvme.c | 14 ++++++++------
 1 file changed, 8 insertions(+), 6 deletions(-)

diff --git a/drivers/scsi/lpfc/lpfc_nvme.c b/drivers/scsi/lpfc/lpfc_nvme.c
index f6c8963c915d..32b28651039e 100644
--- a/drivers/scsi/lpfc/lpfc_nvme.c
+++ b/drivers/scsi/lpfc/lpfc_nvme.c
@@ -382,13 +382,15 @@ lpfc_nvme_remoteport_delete(struct nvme_fc_remote_port *remoteport)
 	if (ndlp->upcall_flags & NLP_WAIT_FOR_UNREG) {
 		ndlp->nrport = NULL;
 		ndlp->upcall_flags &= ~NLP_WAIT_FOR_UNREG;
-	}
-	spin_unlock_irq(&vport->phba->hbalock);
+		spin_unlock_irq(&vport->phba->hbalock);
 
-	/* Remove original register reference. The host transport
-	 * won't reference this rport/remoteport any further.
-	 */
-	lpfc_nlp_put(ndlp);
+		/* Remove original register reference. The host transport
+		 * won't reference this rport/remoteport any further.
+		 */
+		lpfc_nlp_put(ndlp);
+	} else {
+		spin_unlock_irq(&vport->phba->hbalock);
+	}
 
  rport_err:
 	return;
-- 
2.16.4

[PATCH 08/12] lpfc: Fix erroneous cpu limit of 128 on I/O statistics

[James Smart]

The cpu io statistics were capped by a hard define limit of 128. This
effectively was a max number of cpu's, not an actual cpu cou nor actual
cpu numbers which can be even larger that both of those values. This made
stats off/misleading and on large cpu count systems, wrong.

Fix the stats so that all cpus can have a stats struct.
Fix the looping such that it loops by hdwq, finds cpus that used the
hdwq, and sum the stats, then display.

Signed-off-by: Dick Kennedy <dick.kennedy@broadcom.com>
Signed-off-by: James Smart <jsmart2021@gmail.com>
---
 drivers/scsi/lpfc/lpfc.h         |   9 +-
 drivers/scsi/lpfc/lpfc_debugfs.c | 204 +++++++++++++++++++++++----------------
 drivers/scsi/lpfc/lpfc_debugfs.h |   1 -
 drivers/scsi/lpfc/lpfc_init.c    |  28 ++++++
 drivers/scsi/lpfc/lpfc_nvme.c    |  45 ++++-----
 drivers/scsi/lpfc/lpfc_nvmet.c   |  55 +++++------
 drivers/scsi/lpfc/lpfc_scsi.c    |  23 +----
 drivers/scsi/lpfc/lpfc_sli4.h    |  19 ++--
 8 files changed, 215 insertions(+), 169 deletions(-)

diff --git a/drivers/scsi/lpfc/lpfc.h b/drivers/scsi/lpfc/lpfc.h
index e940a49f9f02..e4924b9fa69c 100644
--- a/drivers/scsi/lpfc/lpfc.h
+++ b/drivers/scsi/lpfc/lpfc.h
@@ -481,7 +481,7 @@ struct lpfc_vport {
 	struct dentry *debug_nvmestat;
 	struct dentry *debug_scsistat;
 	struct dentry *debug_nvmektime;
-	struct dentry *debug_cpucheck;
+	struct dentry *debug_hdwqstat;
 	struct dentry *vport_debugfs_root;
 	struct lpfc_debugfs_trc *disc_trc;
 	atomic_t disc_trc_cnt;
@@ -1175,12 +1175,11 @@ struct lpfc_hba {
 	uint16_t sfp_warning;
 
 #ifdef CONFIG_SCSI_LPFC_DEBUG_FS
-	uint16_t cpucheck_on;
+	uint16_t hdwqstat_on;
 #define LPFC_CHECK_OFF		0
 #define LPFC_CHECK_NVME_IO	1
-#define LPFC_CHECK_NVMET_RCV	2
-#define LPFC_CHECK_NVMET_IO	4
-#define LPFC_CHECK_SCSI_IO	8
+#define LPFC_CHECK_NVMET_IO	2
+#define LPFC_CHECK_SCSI_IO	4
 	uint16_t ktime_on;
 	uint64_t ktime_data_samples;
 	uint64_t ktime_status_samples;
diff --git a/drivers/scsi/lpfc/lpfc_debugfs.c b/drivers/scsi/lpfc/lpfc_debugfs.c
index 819335b16c2e..1b8be1006cbe 100644
--- a/drivers/scsi/lpfc/lpfc_debugfs.c
+++ b/drivers/scsi/lpfc/lpfc_debugfs.c
@@ -1603,42 +1603,50 @@ lpfc_debugfs_nvmeio_trc_data(struct lpfc_hba *phba, char *buf, int size)
 }
 
 /**
- * lpfc_debugfs_cpucheck_data - Dump target node list to a buffer
+ * lpfc_debugfs_hdwqstat_data - Dump I/O stats to a buffer
  * @vport: The vport to gather target node info from.
  * @buf: The buffer to dump log into.
  * @size: The maximum amount of data to process.
  *
  * Description:
- * This routine dumps the NVME statistics associated with @vport
+ * This routine dumps the NVME + SCSI statistics associated with @vport
  *
  * Return Value:
  * This routine returns the amount of bytes that were dumped into @buf and will
  * not exceed @size.
  **/
 static int
-lpfc_debugfs_cpucheck_data(struct lpfc_vport *vport, char *buf, int size)
+lpfc_debugfs_hdwqstat_data(struct lpfc_vport *vport, char *buf, int size)
 {
 	struct lpfc_hba   *phba = vport->phba;
 	struct lpfc_sli4_hdw_queue *qp;
-	int i, j, max_cnt;
-	int len = 0;
+	struct lpfc_hdwq_stat *c_stat;
+	int i, j, len;
 	uint32_t tot_xmt;
 	uint32_t tot_rcv;
 	uint32_t tot_cmpl;
+	char tmp[LPFC_MAX_SCSI_INFO_TMP_LEN] = {0};
 
-	len += scnprintf(buf + len, PAGE_SIZE - len,
-			"CPUcheck %s ",
-			(phba->cpucheck_on & LPFC_CHECK_NVME_IO ?
-				"Enabled" : "Disabled"));
-	if (phba->nvmet_support) {
-		len += scnprintf(buf + len, PAGE_SIZE - len,
-				"%s\n",
-				(phba->cpucheck_on & LPFC_CHECK_NVMET_RCV ?
-					"Rcv Enabled\n" : "Rcv Disabled\n"));
-	} else {
-		len += scnprintf(buf + len, PAGE_SIZE - len, "\n");
-	}
-	max_cnt = size - LPFC_DEBUG_OUT_LINE_SZ;
+	scnprintf(tmp, sizeof(tmp), "HDWQ Stats:\n\n");
+	if (strlcat(buf, tmp, size) >= size)
+		goto buffer_done;
+
+	scnprintf(tmp, sizeof(tmp), "(NVME Accounting: %s) ",
+		  (phba->hdwqstat_on &
+		  (LPFC_CHECK_NVME_IO | LPFC_CHECK_NVMET_IO) ?
+		  "Enabled" : "Disabled"));
+	if (strlcat(buf, tmp, size) >= size)
+		goto buffer_done;
+
+	scnprintf(tmp, sizeof(tmp), "(SCSI Accounting: %s) ",
+		  (phba->hdwqstat_on & LPFC_CHECK_SCSI_IO ?
+		  "Enabled" : "Disabled"));
+	if (strlcat(buf, tmp, size) >= size)
+		goto buffer_done;
+
+	scnprintf(tmp, sizeof(tmp), "\n\n");
+	if (strlcat(buf, tmp, size) >= size)
+		goto buffer_done;
 
 	for (i = 0; i < phba->cfg_hdw_queue; i++) {
 		qp = &phba->sli4_hba.hdwq[i];
@@ -1646,46 +1654,76 @@ lpfc_debugfs_cpucheck_data(struct lpfc_vport *vport, char *buf, int size)
 		tot_rcv = 0;
 		tot_xmt = 0;
 		tot_cmpl = 0;
-		for (j = 0; j < LPFC_CHECK_CPU_CNT; j++) {
-			tot_xmt += qp->cpucheck_xmt_io[j];
-			tot_cmpl += qp->cpucheck_cmpl_io[j];
-			if (phba->nvmet_support)
-				tot_rcv += qp->cpucheck_rcv_io[j];
-		}
 
-		/* Only display Hardware Qs with something */
-		if (!tot_xmt && !tot_cmpl && !tot_rcv)
-			continue;
+		for_each_present_cpu(j) {
+			c_stat = per_cpu_ptr(phba->sli4_hba.c_stat, j);
+
+			/* Only display for this HDWQ */
+			if (i != c_stat->hdwq_no)
+				continue;
 
-		len += scnprintf(buf + len, PAGE_SIZE - len,
-				"HDWQ %03d: ", i);
-		for (j = 0; j < LPFC_CHECK_CPU_CNT; j++) {
 			/* Only display non-zero counters */
-			if (!qp->cpucheck_xmt_io[j] &&
-			    !qp->cpucheck_cmpl_io[j] &&
-			    !qp->cpucheck_rcv_io[j])
+			if (!c_stat->xmt_io && !c_stat->cmpl_io &&
+			    !c_stat->rcv_io)
 				continue;
+
+			if (!tot_xmt && !tot_cmpl && !tot_rcv) {
+				/* Print HDWQ string only the first time */
+				scnprintf(tmp, sizeof(tmp), "[HDWQ %d]:\t", i);
+				if (strlcat(buf, tmp, size) >= size)
+					goto buffer_done;
+			}
+
+			tot_xmt += c_stat->xmt_io;
+			tot_cmpl += c_stat->cmpl_io;
+			if (phba->nvmet_support)
+				tot_rcv += c_stat->rcv_io;
+
+			scnprintf(tmp, sizeof(tmp), "| [CPU %d]: ", j);
+			if (strlcat(buf, tmp, size) >= size)
+				goto buffer_done;
+
 			if (phba->nvmet_support) {
-				len += scnprintf(buf + len, PAGE_SIZE - len,
-						"CPU %03d: %x/%x/%x ", j,
-						qp->cpucheck_rcv_io[j],
-						qp->cpucheck_xmt_io[j],
-						qp->cpucheck_cmpl_io[j]);
+				scnprintf(tmp, sizeof(tmp),
+					  "XMT 0x%x CMPL 0x%x RCV 0x%x |",
+					  c_stat->xmt_io, c_stat->cmpl_io,
+					  c_stat->rcv_io);
+				if (strlcat(buf, tmp, size) >= size)
+					goto buffer_done;
 			} else {
-				len += scnprintf(buf + len, PAGE_SIZE - len,
-						"CPU %03d: %x/%x ", j,
-						qp->cpucheck_xmt_io[j],
-						qp->cpucheck_cmpl_io[j]);
+				scnprintf(tmp, sizeof(tmp),
+					  "XMT 0x%x CMPL 0x%x |",
+					  c_stat->xmt_io, c_stat->cmpl_io);
+				if (strlcat(buf, tmp, size) >= size)
+					goto buffer_done;
 			}
 		}
-		len += scnprintf(buf + len, PAGE_SIZE - len,
-				"Total: %x\n", tot_xmt);
-		if (len >= max_cnt) {
-			len += scnprintf(buf + len, PAGE_SIZE - len,
-					"Truncated ...\n");
-			return len;
+
+		/* Check if nothing to display */
+		if (!tot_xmt && !tot_cmpl && !tot_rcv)
+			continue;
+
+		scnprintf(tmp, sizeof(tmp), "\t->\t[HDWQ Total: ");
+		if (strlcat(buf, tmp, size) >= size)
+			goto buffer_done;
+
+		if (phba->nvmet_support) {
+			scnprintf(tmp, sizeof(tmp),
+				  "XMT 0x%x CMPL 0x%x RCV 0x%x]\n\n",
+				  tot_xmt, tot_cmpl, tot_rcv);
+			if (strlcat(buf, tmp, size) >= size)
+				goto buffer_done;
+		} else {
+			scnprintf(tmp, sizeof(tmp),
+				  "XMT 0x%x CMPL 0x%x]\n\n",
+				  tot_xmt, tot_cmpl);
+			if (strlcat(buf, tmp, size) >= size)
+				goto buffer_done;
 		}
 	}
+
+buffer_done:
+	len = strnlen(buf, size);
 	return len;
 }
 
@@ -2921,7 +2959,7 @@ lpfc_debugfs_nvmeio_trc_write(struct file *file, const char __user *buf,
 }
 
 static int
-lpfc_debugfs_cpucheck_open(struct inode *inode, struct file *file)
+lpfc_debugfs_hdwqstat_open(struct inode *inode, struct file *file)
 {
 	struct lpfc_vport *vport = inode->i_private;
 	struct lpfc_debug *debug;
@@ -2932,14 +2970,14 @@ lpfc_debugfs_cpucheck_open(struct inode *inode, struct file *file)
 		goto out;
 
 	 /* Round to page boundary */
-	debug->buffer = kmalloc(LPFC_CPUCHECK_SIZE, GFP_KERNEL);
+	debug->buffer = kcalloc(1, LPFC_SCSISTAT_SIZE, GFP_KERNEL);
 	if (!debug->buffer) {
 		kfree(debug);
 		goto out;
 	}
 
-	debug->len = lpfc_debugfs_cpucheck_data(vport, debug->buffer,
-		LPFC_CPUCHECK_SIZE);
+	debug->len = lpfc_debugfs_hdwqstat_data(vport, debug->buffer,
+						LPFC_SCSISTAT_SIZE);
 
 	debug->i_private = inode->i_private;
 	file->private_data = debug;
@@ -2950,16 +2988,16 @@ lpfc_debugfs_cpucheck_open(struct inode *inode, struct file *file)
 }
 
 static ssize_t
-lpfc_debugfs_cpucheck_write(struct file *file, const char __user *buf,
+lpfc_debugfs_hdwqstat_write(struct file *file, const char __user *buf,
 			    size_t nbytes, loff_t *ppos)
 {
 	struct lpfc_debug *debug = file->private_data;
 	struct lpfc_vport *vport = (struct lpfc_vport *)debug->i_private;
 	struct lpfc_hba   *phba = vport->phba;
-	struct lpfc_sli4_hdw_queue *qp;
+	struct lpfc_hdwq_stat *c_stat;
 	char mybuf[64];
 	char *pbuf;
-	int i, j;
+	int i;
 
 	if (nbytes > 64)
 		nbytes = 64;
@@ -2972,41 +3010,39 @@ lpfc_debugfs_cpucheck_write(struct file *file, const char __user *buf,
 
 	if ((strncmp(pbuf, "on", sizeof("on") - 1) == 0)) {
 		if (phba->nvmet_support)
-			phba->cpucheck_on |= LPFC_CHECK_NVMET_IO;
+			phba->hdwqstat_on |= LPFC_CHECK_NVMET_IO;
 		else
-			phba->cpucheck_on |= (LPFC_CHECK_NVME_IO |
+			phba->hdwqstat_on |= (LPFC_CHECK_NVME_IO |
 				LPFC_CHECK_SCSI_IO);
 		return strlen(pbuf);
 	} else if ((strncmp(pbuf, "nvme_on", sizeof("nvme_on") - 1) == 0)) {
 		if (phba->nvmet_support)
-			phba->cpucheck_on |= LPFC_CHECK_NVMET_IO;
+			phba->hdwqstat_on |= LPFC_CHECK_NVMET_IO;
 		else
-			phba->cpucheck_on |= LPFC_CHECK_NVME_IO;
+			phba->hdwqstat_on |= LPFC_CHECK_NVME_IO;
 		return strlen(pbuf);
 	} else if ((strncmp(pbuf, "scsi_on", sizeof("scsi_on") - 1) == 0)) {
-		phba->cpucheck_on |= LPFC_CHECK_SCSI_IO;
+		if (!phba->nvmet_support)
+			phba->hdwqstat_on |= LPFC_CHECK_SCSI_IO;
 		return strlen(pbuf);
-	} else if ((strncmp(pbuf, "rcv",
-		   sizeof("rcv") - 1) == 0)) {
-		if (phba->nvmet_support)
-			phba->cpucheck_on |= LPFC_CHECK_NVMET_RCV;
-		else
-			return -EINVAL;
+	} else if ((strncmp(pbuf, "nvme_off", sizeof("nvme_off") - 1) == 0)) {
+		phba->hdwqstat_on &= ~(LPFC_CHECK_NVME_IO |
+				       LPFC_CHECK_NVMET_IO);
+		return strlen(pbuf);
+	} else if ((strncmp(pbuf, "scsi_off", sizeof("scsi_off") - 1) == 0)) {
+		phba->hdwqstat_on &= ~LPFC_CHECK_SCSI_IO;
 		return strlen(pbuf);
 	} else if ((strncmp(pbuf, "off",
 		   sizeof("off") - 1) == 0)) {
-		phba->cpucheck_on = LPFC_CHECK_OFF;
+		phba->hdwqstat_on = LPFC_CHECK_OFF;
 		return strlen(pbuf);
 	} else if ((strncmp(pbuf, "zero",
 		   sizeof("zero") - 1) == 0)) {
-		for (i = 0; i < phba->cfg_hdw_queue; i++) {
-			qp = &phba->sli4_hba.hdwq[i];
-
-			for (j = 0; j < LPFC_CHECK_CPU_CNT; j++) {
-				qp->cpucheck_rcv_io[j] = 0;
-				qp->cpucheck_xmt_io[j] = 0;
-				qp->cpucheck_cmpl_io[j] = 0;
-			}
+		for_each_present_cpu(i) {
+			c_stat = per_cpu_ptr(phba->sli4_hba.c_stat, i);
+			c_stat->xmt_io = 0;
+			c_stat->cmpl_io = 0;
+			c_stat->rcv_io = 0;
 		}
 		return strlen(pbuf);
 	}
@@ -5451,13 +5487,13 @@ static const struct file_operations lpfc_debugfs_op_nvmeio_trc = {
 	.release =      lpfc_debugfs_release,
 };
 
-#undef lpfc_debugfs_op_cpucheck
-static const struct file_operations lpfc_debugfs_op_cpucheck = {
+#undef lpfc_debugfs_op_hdwqstat
+static const struct file_operations lpfc_debugfs_op_hdwqstat = {
 	.owner =        THIS_MODULE,
-	.open =         lpfc_debugfs_cpucheck_open,
+	.open =         lpfc_debugfs_hdwqstat_open,
 	.llseek =       lpfc_debugfs_lseek,
 	.read =         lpfc_debugfs_read,
-	.write =	lpfc_debugfs_cpucheck_write,
+	.write =	lpfc_debugfs_hdwqstat_write,
 	.release =      lpfc_debugfs_release,
 };
 
@@ -6081,11 +6117,11 @@ lpfc_debugfs_initialize(struct lpfc_vport *vport)
 				    vport->vport_debugfs_root,
 				    vport, &lpfc_debugfs_op_nvmektime);
 
-	snprintf(name, sizeof(name), "cpucheck");
-	vport->debug_cpucheck =
+	snprintf(name, sizeof(name), "hdwqstat");
+	vport->debug_hdwqstat =
 		debugfs_create_file(name, 0644,
 				    vport->vport_debugfs_root,
-				    vport, &lpfc_debugfs_op_cpucheck);
+				    vport, &lpfc_debugfs_op_hdwqstat);
 
 	/*
 	 * The following section is for additional directories/files for the
@@ -6219,8 +6255,8 @@ lpfc_debugfs_terminate(struct lpfc_vport *vport)
 	debugfs_remove(vport->debug_nvmektime); /* nvmektime */
 	vport->debug_nvmektime = NULL;
 
-	debugfs_remove(vport->debug_cpucheck); /* cpucheck */
-	vport->debug_cpucheck = NULL;
+	debugfs_remove(vport->debug_hdwqstat); /* hdwqstat */
+	vport->debug_hdwqstat = NULL;
 
 	if (vport->vport_debugfs_root) {
 		debugfs_remove(vport->vport_debugfs_root); /* vportX */
diff --git a/drivers/scsi/lpfc/lpfc_debugfs.h b/drivers/scsi/lpfc/lpfc_debugfs.h
index 20f2537af511..6643b9bfd4f3 100644
--- a/drivers/scsi/lpfc/lpfc_debugfs.h
+++ b/drivers/scsi/lpfc/lpfc_debugfs.h
@@ -47,7 +47,6 @@
 /* nvmestat output buffer size */
 #define LPFC_NVMESTAT_SIZE 8192
 #define LPFC_NVMEKTIME_SIZE 8192
-#define LPFC_CPUCHECK_SIZE 8192
 #define LPFC_NVMEIO_TRC_SIZE 8192
 
 /* scsistat output buffer size */
diff --git a/drivers/scsi/lpfc/lpfc_init.c b/drivers/scsi/lpfc/lpfc_init.c
index 1dadf247a0aa..4104bdcdbb6f 100644
--- a/drivers/scsi/lpfc/lpfc_init.c
+++ b/drivers/scsi/lpfc/lpfc_init.c
@@ -6951,6 +6951,17 @@ lpfc_sli4_driver_resource_setup(struct lpfc_hba *phba)
 		rc = -ENOMEM;
 		goto out_free_hba_cpu_map;
 	}
+
+#ifdef CONFIG_SCSI_LPFC_DEBUG_FS
+	phba->sli4_hba.c_stat = alloc_percpu(struct lpfc_hdwq_stat);
+	if (!phba->sli4_hba.c_stat) {
+		lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
+				"3332 Failed allocating per cpu hdwq stats\n");
+		rc = -ENOMEM;
+		goto out_free_hba_eq_info;
+	}
+#endif
+
 	/*
 	 * Enable sr-iov virtual functions if supported and configured
 	 * through the module parameter.
@@ -6970,6 +6981,10 @@ lpfc_sli4_driver_resource_setup(struct lpfc_hba *phba)
 
 	return 0;
 
+#ifdef CONFIG_SCSI_LPFC_DEBUG_FS
+out_free_hba_eq_info:
+	free_percpu(phba->sli4_hba.eq_info);
+#endif
 out_free_hba_cpu_map:
 	kfree(phba->sli4_hba.cpu_map);
 out_free_hba_eq_hdl:
@@ -7008,6 +7023,9 @@ lpfc_sli4_driver_resource_unset(struct lpfc_hba *phba)
 	struct lpfc_fcf_conn_entry *conn_entry, *next_conn_entry;
 
 	free_percpu(phba->sli4_hba.eq_info);
+#ifdef CONFIG_SCSI_LPFC_DEBUG_FS
+	free_percpu(phba->sli4_hba.c_stat);
+#endif
 
 	/* Free memory allocated for msi-x interrupt vector to CPU mapping */
 	kfree(phba->sli4_hba.cpu_map);
@@ -10848,6 +10866,9 @@ lpfc_cpu_affinity_check(struct lpfc_hba *phba, int vectors)
 #ifdef CONFIG_X86
 	struct cpuinfo_x86 *cpuinfo;
 #endif
+#ifdef CONFIG_SCSI_LPFC_DEBUG_FS
+	struct lpfc_hdwq_stat *c_stat;
+#endif
 
 	max_phys_id = 0;
 	min_phys_id = LPFC_VECTOR_MAP_EMPTY;
@@ -11099,10 +11120,17 @@ lpfc_cpu_affinity_check(struct lpfc_hba *phba, int vectors)
 	idx = 0;
 	for_each_possible_cpu(cpu) {
 		cpup = &phba->sli4_hba.cpu_map[cpu];
+#ifdef CONFIG_SCSI_LPFC_DEBUG_FS
+		c_stat = per_cpu_ptr(phba->sli4_hba.c_stat, cpu);
+		c_stat->hdwq_no = cpup->hdwq;
+#endif
 		if (cpup->hdwq != LPFC_VECTOR_MAP_EMPTY)
 			continue;
 
 		cpup->hdwq = idx++ % phba->cfg_hdw_queue;
+#ifdef CONFIG_SCSI_LPFC_DEBUG_FS
+		c_stat->hdwq_no = cpup->hdwq;
+#endif
 		lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
 				"3340 Set Affinity: not present "
 				"CPU %d hdwq %d\n",
diff --git a/drivers/scsi/lpfc/lpfc_nvme.c b/drivers/scsi/lpfc/lpfc_nvme.c
index 32b28651039e..38936b7ce043 100644
--- a/drivers/scsi/lpfc/lpfc_nvme.c
+++ b/drivers/scsi/lpfc/lpfc_nvme.c
@@ -1012,6 +1012,9 @@ lpfc_nvme_io_cmd_wqe_cmpl(struct lpfc_hba *phba, struct lpfc_iocbq *pwqeIn,
 	uint32_t code, status, idx;
 	uint16_t cid, sqhd, data;
 	uint32_t *ptr;
+#ifdef CONFIG_SCSI_LPFC_DEBUG_FS
+	int cpu;
+#endif
 
 	/* Sanity check on return of outstanding command */
 	if (!lpfc_ncmd) {
@@ -1184,19 +1187,15 @@ lpfc_nvme_io_cmd_wqe_cmpl(struct lpfc_hba *phba, struct lpfc_iocbq *pwqeIn,
 		phba->ktime_last_cmd = lpfc_ncmd->ts_data_nvme;
 		lpfc_nvme_ktime(phba, lpfc_ncmd);
 	}
-	if (unlikely(phba->cpucheck_on & LPFC_CHECK_NVME_IO)) {
-		uint32_t cpu;
-		idx = lpfc_ncmd->cur_iocbq.hba_wqidx;
+	if (unlikely(phba->hdwqstat_on & LPFC_CHECK_NVME_IO)) {
 		cpu = raw_smp_processor_id();
-		if (cpu < LPFC_CHECK_CPU_CNT) {
-			if (lpfc_ncmd->cpu != cpu)
-				lpfc_printf_vlog(vport,
-						 KERN_INFO, LOG_NVME_IOERR,
-						 "6701 CPU Check cmpl: "
-						 "cpu %d expect %d\n",
-						 cpu, lpfc_ncmd->cpu);
-			phba->sli4_hba.hdwq[idx].cpucheck_cmpl_io[cpu]++;
-		}
+		this_cpu_inc(phba->sli4_hba.c_stat->cmpl_io);
+		if (lpfc_ncmd->cpu != cpu)
+			lpfc_printf_vlog(vport,
+					 KERN_INFO, LOG_NVME_IOERR,
+					 "6701 CPU Check cmpl: "
+					 "cpu %d expect %d\n",
+					 cpu, lpfc_ncmd->cpu);
 	}
 #endif
 
@@ -1745,19 +1744,17 @@ lpfc_nvme_fcp_io_submit(struct nvme_fc_local_port *pnvme_lport,
 	if (lpfc_ncmd->ts_cmd_start)
 		lpfc_ncmd->ts_cmd_wqput = ktime_get_ns();
 
-	if (phba->cpucheck_on & LPFC_CHECK_NVME_IO) {
+	if (phba->hdwqstat_on & LPFC_CHECK_NVME_IO) {
 		cpu = raw_smp_processor_id();
-		if (cpu < LPFC_CHECK_CPU_CNT) {
-			lpfc_ncmd->cpu = cpu;
-			if (idx != cpu)
-				lpfc_printf_vlog(vport,
-						 KERN_INFO, LOG_NVME_IOERR,
-						"6702 CPU Check cmd: "
-						"cpu %d wq %d\n",
-						lpfc_ncmd->cpu,
-						lpfc_queue_info->index);
-			phba->sli4_hba.hdwq[idx].cpucheck_xmt_io[cpu]++;
-		}
+		this_cpu_inc(phba->sli4_hba.c_stat->xmt_io);
+		lpfc_ncmd->cpu = cpu;
+		if (idx != cpu)
+			lpfc_printf_vlog(vport,
+					 KERN_INFO, LOG_NVME_IOERR,
+					"6702 CPU Check cmd: "
+					"cpu %d wq %d\n",
+					lpfc_ncmd->cpu,
+					lpfc_queue_info->index);
 	}
 #endif
 	return 0;
diff --git a/drivers/scsi/lpfc/lpfc_nvmet.c b/drivers/scsi/lpfc/lpfc_nvmet.c
index ae89d1450912..565419bf8d74 100644
--- a/drivers/scsi/lpfc/lpfc_nvmet.c
+++ b/drivers/scsi/lpfc/lpfc_nvmet.c
@@ -707,7 +707,7 @@ lpfc_nvmet_xmt_fcp_op_cmp(struct lpfc_hba *phba, struct lpfc_iocbq *cmdwqe,
 	struct lpfc_nvmet_rcv_ctx *ctxp;
 	uint32_t status, result, op, start_clean, logerr;
 #ifdef CONFIG_SCSI_LPFC_DEBUG_FS
-	uint32_t id;
+	int id;
 #endif
 
 	ctxp = cmdwqe->context2;
@@ -814,16 +814,14 @@ lpfc_nvmet_xmt_fcp_op_cmp(struct lpfc_hba *phba, struct lpfc_iocbq *cmdwqe,
 		rsp->done(rsp);
 	}
 #ifdef CONFIG_SCSI_LPFC_DEBUG_FS
-	if (phba->cpucheck_on & LPFC_CHECK_NVMET_IO) {
+	if (phba->hdwqstat_on & LPFC_CHECK_NVMET_IO) {
 		id = raw_smp_processor_id();
-		if (id < LPFC_CHECK_CPU_CNT) {
-			if (ctxp->cpu != id)
-				lpfc_printf_log(phba, KERN_INFO, LOG_NVME_IOERR,
-						"6704 CPU Check cmdcmpl: "
-						"cpu %d expect %d\n",
-						id, ctxp->cpu);
-			phba->sli4_hba.hdwq[rsp->hwqid].cpucheck_cmpl_io[id]++;
-		}
+		this_cpu_inc(phba->sli4_hba.c_stat->cmpl_io);
+		if (ctxp->cpu != id)
+			lpfc_printf_log(phba, KERN_INFO, LOG_NVME_IOERR,
+					"6704 CPU Check cmdcmpl: "
+					"cpu %d expect %d\n",
+					id, ctxp->cpu);
 	}
 #endif
 }
@@ -931,6 +929,9 @@ lpfc_nvmet_xmt_fcp_op(struct nvmet_fc_target_port *tgtport,
 	struct lpfc_sli_ring *pring;
 	unsigned long iflags;
 	int rc;
+#ifdef CONFIG_SCSI_LPFC_DEBUG_FS
+	int id;
+#endif
 
 	if (phba->pport->load_flag & FC_UNLOADING) {
 		rc = -ENODEV;
@@ -954,16 +955,14 @@ lpfc_nvmet_xmt_fcp_op(struct nvmet_fc_target_port *tgtport,
 	if (!ctxp->hdwq)
 		ctxp->hdwq = &phba->sli4_hba.hdwq[rsp->hwqid];
 
-	if (phba->cpucheck_on & LPFC_CHECK_NVMET_IO) {
-		int id = raw_smp_processor_id();
-		if (id < LPFC_CHECK_CPU_CNT) {
-			if (rsp->hwqid != id)
-				lpfc_printf_log(phba, KERN_INFO, LOG_NVME_IOERR,
-						"6705 CPU Check OP: "
-						"cpu %d expect %d\n",
-						id, rsp->hwqid);
-			phba->sli4_hba.hdwq[rsp->hwqid].cpucheck_xmt_io[id]++;
-		}
+	if (phba->hdwqstat_on & LPFC_CHECK_NVMET_IO) {
+		id = raw_smp_processor_id();
+		this_cpu_inc(phba->sli4_hba.c_stat->xmt_io);
+		if (rsp->hwqid != id)
+			lpfc_printf_log(phba, KERN_INFO, LOG_NVME_IOERR,
+					"6705 CPU Check OP: "
+					"cpu %d expect %d\n",
+					id, rsp->hwqid);
 		ctxp->cpu = id; /* Setup cpu for cmpl check */
 	}
 #endif
@@ -2270,15 +2269,13 @@ lpfc_nvmet_unsol_fcp_buffer(struct lpfc_hba *phba,
 	size = nvmebuf->bytes_recv;
 
 #ifdef CONFIG_SCSI_LPFC_DEBUG_FS
-	if (phba->cpucheck_on & LPFC_CHECK_NVMET_RCV) {
-		if (current_cpu < LPFC_CHECK_CPU_CNT) {
-			if (idx != current_cpu)
-				lpfc_printf_log(phba, KERN_INFO, LOG_NVME_IOERR,
-						"6703 CPU Check rcv: "
-						"cpu %d expect %d\n",
-						current_cpu, idx);
-			phba->sli4_hba.hdwq[idx].cpucheck_rcv_io[current_cpu]++;
-		}
+	if (phba->hdwqstat_on & LPFC_CHECK_NVMET_IO) {
+		this_cpu_inc(phba->sli4_hba.c_stat->rcv_io);
+		if (idx != current_cpu)
+			lpfc_printf_log(phba, KERN_INFO, LOG_NVME_IOERR,
+					"6703 CPU Check rcv: "
+					"cpu %d expect %d\n",
+					current_cpu, idx);
 	}
 #endif
 
diff --git a/drivers/scsi/lpfc/lpfc_scsi.c b/drivers/scsi/lpfc/lpfc_scsi.c
index be62795715f7..3caa4fd2b55f 100644
--- a/drivers/scsi/lpfc/lpfc_scsi.c
+++ b/drivers/scsi/lpfc/lpfc_scsi.c
@@ -3805,9 +3805,6 @@ lpfc_scsi_cmd_iocb_cmpl(struct lpfc_hba *phba, struct lpfc_iocbq *pIocbIn,
 	struct Scsi_Host *shost;
 	int idx;
 	uint32_t logit = LOG_FCP;
-#ifdef CONFIG_SCSI_LPFC_DEBUG_FS
-	int cpu;
-#endif
 
 	/* Guard against abort handler being called at same time */
 	spin_lock(&lpfc_cmd->buf_lock);
@@ -3826,11 +3823,8 @@ lpfc_scsi_cmd_iocb_cmpl(struct lpfc_hba *phba, struct lpfc_iocbq *pIocbIn,
 		phba->sli4_hba.hdwq[idx].scsi_cstat.io_cmpls++;
 
 #ifdef CONFIG_SCSI_LPFC_DEBUG_FS
-	if (unlikely(phba->cpucheck_on & LPFC_CHECK_SCSI_IO)) {
-		cpu = raw_smp_processor_id();
-		if (cpu < LPFC_CHECK_CPU_CNT && phba->sli4_hba.hdwq)
-			phba->sli4_hba.hdwq[idx].cpucheck_cmpl_io[cpu]++;
-	}
+	if (unlikely(phba->hdwqstat_on & LPFC_CHECK_SCSI_IO))
+		this_cpu_inc(phba->sli4_hba.c_stat->cmpl_io);
 #endif
 	shost = cmd->device->host;
 
@@ -4503,9 +4497,6 @@ lpfc_queuecommand(struct Scsi_Host *shost, struct scsi_cmnd *cmnd)
 	struct lpfc_io_buf *lpfc_cmd;
 	struct fc_rport *rport = starget_to_rport(scsi_target(cmnd->device));
 	int err, idx;
-#ifdef CONFIG_SCSI_LPFC_DEBUG_FS
-	int cpu;
-#endif
 
 	rdata = lpfc_rport_data_from_scsi_device(cmnd->device);
 
@@ -4626,14 +4617,8 @@ lpfc_queuecommand(struct Scsi_Host *shost, struct scsi_cmnd *cmnd)
 	lpfc_scsi_prep_cmnd(vport, lpfc_cmd, ndlp);
 
 #ifdef CONFIG_SCSI_LPFC_DEBUG_FS
-	if (unlikely(phba->cpucheck_on & LPFC_CHECK_SCSI_IO)) {
-		cpu = raw_smp_processor_id();
-		if (cpu < LPFC_CHECK_CPU_CNT) {
-			struct lpfc_sli4_hdw_queue *hdwq =
-					&phba->sli4_hba.hdwq[lpfc_cmd->hdwq_no];
-			hdwq->cpucheck_xmt_io[cpu]++;
-		}
-	}
+	if (unlikely(phba->hdwqstat_on & LPFC_CHECK_SCSI_IO))
+		this_cpu_inc(phba->sli4_hba.c_stat->xmt_io);
 #endif
 	err = lpfc_sli_issue_iocb(phba, LPFC_FCP_RING,
 				  &lpfc_cmd->cur_iocbq, SLI_IOCB_RET_IOCB);
diff --git a/drivers/scsi/lpfc/lpfc_sli4.h b/drivers/scsi/lpfc/lpfc_sli4.h
index d963ca871383..8da7429e385a 100644
--- a/drivers/scsi/lpfc/lpfc_sli4.h
+++ b/drivers/scsi/lpfc/lpfc_sli4.h
@@ -697,13 +697,6 @@ struct lpfc_sli4_hdw_queue {
 	struct lpfc_lock_stat lock_conflict;
 #endif
 
-#ifdef CONFIG_SCSI_LPFC_DEBUG_FS
-#define LPFC_CHECK_CPU_CNT    128
-	uint32_t cpucheck_rcv_io[LPFC_CHECK_CPU_CNT];
-	uint32_t cpucheck_xmt_io[LPFC_CHECK_CPU_CNT];
-	uint32_t cpucheck_cmpl_io[LPFC_CHECK_CPU_CNT];
-#endif
-
 	/* Per HDWQ pool resources */
 	struct list_head sgl_list;
 	struct list_head cmd_rsp_buf_list;
@@ -740,6 +733,15 @@ struct lpfc_sli4_hdw_queue {
 #define lpfc_qp_spin_lock(lock, qp, lstat) spin_lock(lock)
 #endif
 
+#ifdef CONFIG_SCSI_LPFC_DEBUG_FS
+struct lpfc_hdwq_stat {
+	u32 hdwq_no;
+	u32 rcv_io;
+	u32 xmt_io;
+	u32 cmpl_io;
+};
+#endif
+
 struct lpfc_sli4_hba {
 	void __iomem *conf_regs_memmap_p; /* Kernel memory mapped address for
 					   * config space registers
@@ -921,6 +923,9 @@ struct lpfc_sli4_hba {
 	struct cpumask numa_mask;
 	uint16_t curr_disp_cpu;
 	struct lpfc_eq_intr_info __percpu *eq_info;
+#ifdef CONFIG_SCSI_LPFC_DEBUG_FS
+	struct lpfc_hdwq_stat __percpu *c_stat;
+#endif
 	uint32_t conf_trunk;
 #define lpfc_conf_trunk_port0_WORD	conf_trunk
 #define lpfc_conf_trunk_port0_SHIFT	0
-- 
2.16.4

[PATCH 09/12] lpfc: Change default SCSI LUN QD to 64

[James Smart]

The default lun queue depth by the driver has been 30 for many years.
However, this value, when used with more recent hardware, has actually
throttled some tests that concentrate io on a lun.

Increase the default lun queue depth to 64.

Queue full handling, reported by the target, remains in effect and
unchanged.

Signed-off-by: Dick Kennedy <dick.kennedy@broadcom.com>
Signed-off-by: James Smart <jsmart2021@gmail.com>
---
 drivers/scsi/lpfc/lpfc_attr.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/scsi/lpfc/lpfc_attr.c b/drivers/scsi/lpfc/lpfc_attr.c
index 4317c9ce7eca..ba786d08de01 100644
--- a/drivers/scsi/lpfc/lpfc_attr.c
+++ b/drivers/scsi/lpfc/lpfc_attr.c
@@ -3870,7 +3870,7 @@ LPFC_VPORT_ATTR_R(enable_da_id, 1, 0, 1,
 # lun_queue_depth:  This parameter is used to limit the number of outstanding
 # commands per FCP LUN. Value range is [1,512]. Default value is 30.
 */
-LPFC_VPORT_ATTR_R(lun_queue_depth, 30, 1, 512,
+LPFC_VPORT_ATTR_R(lun_queue_depth, 64, 1, 512,
 		  "Max number of FCP commands we can queue to a specific LUN");
 
 /*
-- 
2.16.4

[PATCH 10/12] lpfc: Make debugfs ktime stats generic for NVME and SCSI

[James Smart]

Currently driver ktime stats, measuring code paths, is NVME-specific.

Convert the stats routines such that the code paths are generic, providing
status for NVME and SCSI. Added ktime stat calls in SCSI queuecommand and
cmpl routines.

Signed-off-by: Dick Kennedy <dick.kennedy@broadcom.com>
Signed-off-by: James Smart <jsmart2021@gmail.com>
---
 drivers/scsi/lpfc/lpfc.h         |   2 +-
 drivers/scsi/lpfc/lpfc_crtn.h    |   1 +
 drivers/scsi/lpfc/lpfc_debugfs.c | 129 ++++++++++++++++++++++++++++++++-------
 drivers/scsi/lpfc/lpfc_debugfs.h |   2 +-
 drivers/scsi/lpfc/lpfc_nvme.c    |  88 +-------------------------
 drivers/scsi/lpfc/lpfc_scsi.c    |  23 +++++++
 drivers/scsi/lpfc/lpfc_sli.h     |   2 +-
 7 files changed, 137 insertions(+), 110 deletions(-)

diff --git a/drivers/scsi/lpfc/lpfc.h b/drivers/scsi/lpfc/lpfc.h
index e4924b9fa69c..747eda6ff8a4 100644
--- a/drivers/scsi/lpfc/lpfc.h
+++ b/drivers/scsi/lpfc/lpfc.h
@@ -480,7 +480,7 @@ struct lpfc_vport {
 	struct dentry *debug_nodelist;
 	struct dentry *debug_nvmestat;
 	struct dentry *debug_scsistat;
-	struct dentry *debug_nvmektime;
+	struct dentry *debug_ioktime;
 	struct dentry *debug_hdwqstat;
 	struct dentry *vport_debugfs_root;
 	struct lpfc_debugfs_trc *disc_trc;
diff --git a/drivers/scsi/lpfc/lpfc_crtn.h b/drivers/scsi/lpfc/lpfc_crtn.h
index a0ef3bac0612..76dc8d9493d2 100644
--- a/drivers/scsi/lpfc/lpfc_crtn.h
+++ b/drivers/scsi/lpfc/lpfc_crtn.h
@@ -588,6 +588,7 @@ struct lpfc_io_buf *lpfc_get_io_buf(struct lpfc_hba *phba,
 				int);
 void lpfc_release_io_buf(struct lpfc_hba *phba, struct lpfc_io_buf *ncmd,
 			 struct lpfc_sli4_hdw_queue *qp);
+void lpfc_io_ktime(struct lpfc_hba *phba, struct lpfc_io_buf *ncmd);
 void lpfc_nvme_cmd_template(void);
 void lpfc_nvmet_cmd_template(void);
 void lpfc_nvme_cancel_iocb(struct lpfc_hba *phba, struct lpfc_iocbq *pwqeIn);
diff --git a/drivers/scsi/lpfc/lpfc_debugfs.c b/drivers/scsi/lpfc/lpfc_debugfs.c
index 1b8be1006cbe..8a6e02aa553f 100644
--- a/drivers/scsi/lpfc/lpfc_debugfs.c
+++ b/drivers/scsi/lpfc/lpfc_debugfs.c
@@ -1300,8 +1300,88 @@ lpfc_debugfs_scsistat_data(struct lpfc_vport *vport, char *buf, int size)
 	return len;
 }
 
+void
+lpfc_io_ktime(struct lpfc_hba *phba, struct lpfc_io_buf *lpfc_cmd)
+{
+	uint64_t seg1, seg2, seg3, seg4;
+	uint64_t segsum;
+
+	if (!lpfc_cmd->ts_last_cmd ||
+	    !lpfc_cmd->ts_cmd_start ||
+	    !lpfc_cmd->ts_cmd_wqput ||
+	    !lpfc_cmd->ts_isr_cmpl ||
+	    !lpfc_cmd->ts_data_io)
+		return;
+
+	if (lpfc_cmd->ts_data_io < lpfc_cmd->ts_cmd_start)
+		return;
+	if (lpfc_cmd->ts_cmd_start < lpfc_cmd->ts_last_cmd)
+		return;
+	if (lpfc_cmd->ts_cmd_wqput < lpfc_cmd->ts_cmd_start)
+		return;
+	if (lpfc_cmd->ts_isr_cmpl < lpfc_cmd->ts_cmd_wqput)
+		return;
+	if (lpfc_cmd->ts_data_io < lpfc_cmd->ts_isr_cmpl)
+		return;
+	/*
+	 * Segment 1 - Time from Last FCP command cmpl is handed
+	 * off to NVME Layer to start of next command.
+	 * Segment 2 - Time from Driver receives a IO cmd start
+	 * from NVME Layer to WQ put is done on IO cmd.
+	 * Segment 3 - Time from Driver WQ put is done on IO cmd
+	 * to MSI-X ISR for IO cmpl.
+	 * Segment 4 - Time from MSI-X ISR for IO cmpl to when
+	 * cmpl is handled off to the NVME Layer.
+	 */
+	seg1 = lpfc_cmd->ts_cmd_start - lpfc_cmd->ts_last_cmd;
+	if (seg1 > 5000000)  /* 5 ms - for sequential IOs only */
+		seg1 = 0;
+
+	/* Calculate times relative to start of IO */
+	seg2 = (lpfc_cmd->ts_cmd_wqput - lpfc_cmd->ts_cmd_start);
+	segsum = seg2;
+	seg3 = lpfc_cmd->ts_isr_cmpl - lpfc_cmd->ts_cmd_start;
+	if (segsum > seg3)
+		return;
+	seg3 -= segsum;
+	segsum += seg3;
+
+	seg4 = lpfc_cmd->ts_data_io - lpfc_cmd->ts_cmd_start;
+	if (segsum > seg4)
+		return;
+	seg4 -= segsum;
+
+	phba->ktime_data_samples++;
+	phba->ktime_seg1_total += seg1;
+	if (seg1 < phba->ktime_seg1_min)
+		phba->ktime_seg1_min = seg1;
+	else if (seg1 > phba->ktime_seg1_max)
+		phba->ktime_seg1_max = seg1;
+	phba->ktime_seg2_total += seg2;
+	if (seg2 < phba->ktime_seg2_min)
+		phba->ktime_seg2_min = seg2;
+	else if (seg2 > phba->ktime_seg2_max)
+		phba->ktime_seg2_max = seg2;
+	phba->ktime_seg3_total += seg3;
+	if (seg3 < phba->ktime_seg3_min)
+		phba->ktime_seg3_min = seg3;
+	else if (seg3 > phba->ktime_seg3_max)
+		phba->ktime_seg3_max = seg3;
+	phba->ktime_seg4_total += seg4;
+	if (seg4 < phba->ktime_seg4_min)
+		phba->ktime_seg4_min = seg4;
+	else if (seg4 > phba->ktime_seg4_max)
+		phba->ktime_seg4_max = seg4;
+
+	lpfc_cmd->ts_last_cmd = 0;
+	lpfc_cmd->ts_cmd_start = 0;
+	lpfc_cmd->ts_cmd_wqput  = 0;
+	lpfc_cmd->ts_isr_cmpl = 0;
+	lpfc_cmd->ts_data_io = 0;
+}
+
 /**
- * lpfc_debugfs_nvmektime_data - Dump target node list to a buffer
+ * lpfc_debugfs_ioktime_data - Dump target node list to a buffer
  * @vport: The vport to gather target node info from.
  * @buf: The buffer to dump log into.
  * @size: The maximum amount of data to process.
@@ -1314,13 +1394,13 @@ lpfc_debugfs_scsistat_data(struct lpfc_vport *vport, char *buf, int size)
  * not exceed @size.
  **/
 static int
-lpfc_debugfs_nvmektime_data(struct lpfc_vport *vport, char *buf, int size)
+lpfc_debugfs_ioktime_data(struct lpfc_vport *vport, char *buf, int size)
 {
 	struct lpfc_hba   *phba = vport->phba;
 	int len = 0;
 
 	if (phba->nvmet_support == 0) {
-		/* NVME Initiator */
+		/* Initiator */
 		len += scnprintf(buf + len, PAGE_SIZE - len,
 				"ktime %s: Total Samples: %lld\n",
 				(phba->ktime_on ?  "Enabled" : "Disabled"),
@@ -1330,8 +1410,8 @@ lpfc_debugfs_nvmektime_data(struct lpfc_vport *vport, char *buf, int size)
 
 		len += scnprintf(
 			buf + len, PAGE_SIZE - len,
-			"Segment 1: Last NVME Cmd cmpl "
-			"done -to- Start of next NVME cnd (in driver)\n");
+			"Segment 1: Last Cmd cmpl "
+			"done -to- Start of next Cmd (in driver)\n");
 		len += scnprintf(
 			buf + len, PAGE_SIZE - len,
 			"avg:%08lld min:%08lld max %08lld\n",
@@ -1341,7 +1421,7 @@ lpfc_debugfs_nvmektime_data(struct lpfc_vport *vport, char *buf, int size)
 			phba->ktime_seg1_max);
 		len += scnprintf(
 			buf + len, PAGE_SIZE - len,
-			"Segment 2: Driver start of NVME cmd "
+			"Segment 2: Driver start of Cmd "
 			"-to- Firmware WQ doorbell\n");
 		len += scnprintf(
 			buf + len, PAGE_SIZE - len,
@@ -1364,7 +1444,7 @@ lpfc_debugfs_nvmektime_data(struct lpfc_vport *vport, char *buf, int size)
 		len += scnprintf(
 			buf + len, PAGE_SIZE - len,
 			"Segment 4: MSI-X ISR cmpl -to- "
-			"NVME cmpl done\n");
+			"Cmd cmpl done\n");
 		len += scnprintf(
 			buf + len, PAGE_SIZE - len,
 			"avg:%08lld min:%08lld max %08lld\n",
@@ -2727,7 +2807,7 @@ lpfc_debugfs_scsistat_write(struct file *file, const char __user *buf,
 }
 
 static int
-lpfc_debugfs_nvmektime_open(struct inode *inode, struct file *file)
+lpfc_debugfs_ioktime_open(struct inode *inode, struct file *file)
 {
 	struct lpfc_vport *vport = inode->i_private;
 	struct lpfc_debug *debug;
@@ -2738,14 +2818,14 @@ lpfc_debugfs_nvmektime_open(struct inode *inode, struct file *file)
 		goto out;
 
 	 /* Round to page boundary */
-	debug->buffer = kmalloc(LPFC_NVMEKTIME_SIZE, GFP_KERNEL);
+	debug->buffer = kmalloc(LPFC_IOKTIME_SIZE, GFP_KERNEL);
 	if (!debug->buffer) {
 		kfree(debug);
 		goto out;
 	}
 
-	debug->len = lpfc_debugfs_nvmektime_data(vport, debug->buffer,
-		LPFC_NVMEKTIME_SIZE);
+	debug->len = lpfc_debugfs_ioktime_data(vport, debug->buffer,
+		LPFC_IOKTIME_SIZE);
 
 	debug->i_private = inode->i_private;
 	file->private_data = debug;
@@ -2756,8 +2836,8 @@ lpfc_debugfs_nvmektime_open(struct inode *inode, struct file *file)
 }
 
 static ssize_t
-lpfc_debugfs_nvmektime_write(struct file *file, const char __user *buf,
-			     size_t nbytes, loff_t *ppos)
+lpfc_debugfs_ioktime_write(struct file *file, const char __user *buf,
+			   size_t nbytes, loff_t *ppos)
 {
 	struct lpfc_debug *debug = file->private_data;
 	struct lpfc_vport *vport = (struct lpfc_vport *)debug->i_private;
@@ -5467,13 +5547,13 @@ static const struct file_operations lpfc_debugfs_op_scsistat = {
 	.release =      lpfc_debugfs_release,
 };
 
-#undef lpfc_debugfs_op_nvmektime
-static const struct file_operations lpfc_debugfs_op_nvmektime = {
+#undef lpfc_debugfs_op_ioktime
+static const struct file_operations lpfc_debugfs_op_ioktime = {
 	.owner =        THIS_MODULE,
-	.open =         lpfc_debugfs_nvmektime_open,
+	.open =         lpfc_debugfs_ioktime_open,
 	.llseek =       lpfc_debugfs_lseek,
 	.read =         lpfc_debugfs_read,
-	.write =	lpfc_debugfs_nvmektime_write,
+	.write =	lpfc_debugfs_ioktime_write,
 	.release =      lpfc_debugfs_release,
 };
 
@@ -6111,11 +6191,16 @@ lpfc_debugfs_initialize(struct lpfc_vport *vport)
 		goto debug_failed;
 	}
 
-	snprintf(name, sizeof(name), "nvmektime");
-	vport->debug_nvmektime =
+	snprintf(name, sizeof(name), "ioktime");
+	vport->debug_ioktime =
 		debugfs_create_file(name, 0644,
 				    vport->vport_debugfs_root,
-				    vport, &lpfc_debugfs_op_nvmektime);
+				    vport, &lpfc_debugfs_op_ioktime);
+	if (!vport->debug_ioktime) {
+		lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT,
+				 "0815 Cannot create debugfs ioktime\n");
+		goto debug_failed;
+	}
 
 	snprintf(name, sizeof(name), "hdwqstat");
 	vport->debug_hdwqstat =
@@ -6252,8 +6337,8 @@ lpfc_debugfs_terminate(struct lpfc_vport *vport)
 	debugfs_remove(vport->debug_scsistat); /* scsistat */
 	vport->debug_scsistat = NULL;
 
-	debugfs_remove(vport->debug_nvmektime); /* nvmektime */
-	vport->debug_nvmektime = NULL;
+	debugfs_remove(vport->debug_ioktime); /* ioktime */
+	vport->debug_ioktime = NULL;
 
 	debugfs_remove(vport->debug_hdwqstat); /* hdwqstat */
 	vport->debug_hdwqstat = NULL;
diff --git a/drivers/scsi/lpfc/lpfc_debugfs.h b/drivers/scsi/lpfc/lpfc_debugfs.h
index 6643b9bfd4f3..7ab6d3b08698 100644
--- a/drivers/scsi/lpfc/lpfc_debugfs.h
+++ b/drivers/scsi/lpfc/lpfc_debugfs.h
@@ -46,7 +46,7 @@
 
 /* nvmestat output buffer size */
 #define LPFC_NVMESTAT_SIZE 8192
-#define LPFC_NVMEKTIME_SIZE 8192
+#define LPFC_IOKTIME_SIZE 8192
 #define LPFC_NVMEIO_TRC_SIZE 8192
 
 /* scsistat output buffer size */
diff --git a/drivers/scsi/lpfc/lpfc_nvme.c b/drivers/scsi/lpfc/lpfc_nvme.c
index 38936b7ce043..0db052a5f542 100644
--- a/drivers/scsi/lpfc/lpfc_nvme.c
+++ b/drivers/scsi/lpfc/lpfc_nvme.c
@@ -899,88 +899,6 @@ lpfc_nvme_adj_fcp_sgls(struct lpfc_vport *vport,
 	sgl->sge_len = cpu_to_le32(nCmd->rsplen);
 }
 
-#ifdef CONFIG_SCSI_LPFC_DEBUG_FS
-static void
-lpfc_nvme_ktime(struct lpfc_hba *phba,
-		struct lpfc_io_buf *lpfc_ncmd)
-{
-	uint64_t seg1, seg2, seg3, seg4;
-	uint64_t segsum;
-
-	if (!lpfc_ncmd->ts_last_cmd ||
-	    !lpfc_ncmd->ts_cmd_start ||
-	    !lpfc_ncmd->ts_cmd_wqput ||
-	    !lpfc_ncmd->ts_isr_cmpl ||
-	    !lpfc_ncmd->ts_data_nvme)
-		return;
-
-	if (lpfc_ncmd->ts_data_nvme < lpfc_ncmd->ts_cmd_start)
-		return;
-	if (lpfc_ncmd->ts_cmd_start < lpfc_ncmd->ts_last_cmd)
-		return;
-	if (lpfc_ncmd->ts_cmd_wqput < lpfc_ncmd->ts_cmd_start)
-		return;
-	if (lpfc_ncmd->ts_isr_cmpl < lpfc_ncmd->ts_cmd_wqput)
-		return;
-	if (lpfc_ncmd->ts_data_nvme < lpfc_ncmd->ts_isr_cmpl)
-		return;
-	/*
-	 * Segment 1 - Time from Last FCP command cmpl is handed
-	 * off to NVME Layer to start of next command.
-	 * Segment 2 - Time from Driver receives a IO cmd start
-	 * from NVME Layer to WQ put is done on IO cmd.
-	 * Segment 3 - Time from Driver WQ put is done on IO cmd
-	 * to MSI-X ISR for IO cmpl.
-	 * Segment 4 - Time from MSI-X ISR for IO cmpl to when
-	 * cmpl is handled off to the NVME Layer.
-	 */
-	seg1 = lpfc_ncmd->ts_cmd_start - lpfc_ncmd->ts_last_cmd;
-	if (seg1 > 5000000)  /* 5 ms - for sequential IOs only */
-		seg1 = 0;
-
-	/* Calculate times relative to start of IO */
-	seg2 = (lpfc_ncmd->ts_cmd_wqput - lpfc_ncmd->ts_cmd_start);
-	segsum = seg2;
-	seg3 = lpfc_ncmd->ts_isr_cmpl - lpfc_ncmd->ts_cmd_start;
-	if (segsum > seg3)
-		return;
-	seg3 -= segsum;
-	segsum += seg3;
-
-	seg4 = lpfc_ncmd->ts_data_nvme - lpfc_ncmd->ts_cmd_start;
-	if (segsum > seg4)
-		return;
-	seg4 -= segsum;
-
-	phba->ktime_data_samples++;
-	phba->ktime_seg1_total += seg1;
-	if (seg1 < phba->ktime_seg1_min)
-		phba->ktime_seg1_min = seg1;
-	else if (seg1 > phba->ktime_seg1_max)
-		phba->ktime_seg1_max = seg1;
-	phba->ktime_seg2_total += seg2;
-	if (seg2 < phba->ktime_seg2_min)
-		phba->ktime_seg2_min = seg2;
-	else if (seg2 > phba->ktime_seg2_max)
-		phba->ktime_seg2_max = seg2;
-	phba->ktime_seg3_total += seg3;
-	if (seg3 < phba->ktime_seg3_min)
-		phba->ktime_seg3_min = seg3;
-	else if (seg3 > phba->ktime_seg3_max)
-		phba->ktime_seg3_max = seg3;
-	phba->ktime_seg4_total += seg4;
-	if (seg4 < phba->ktime_seg4_min)
-		phba->ktime_seg4_min = seg4;
-	else if (seg4 > phba->ktime_seg4_max)
-		phba->ktime_seg4_max = seg4;
-
-	lpfc_ncmd->ts_last_cmd = 0;
-	lpfc_ncmd->ts_cmd_start = 0;
-	lpfc_ncmd->ts_cmd_wqput  = 0;
-	lpfc_ncmd->ts_isr_cmpl = 0;
-	lpfc_ncmd->ts_data_nvme = 0;
-}
-#endif
 
 /**
  * lpfc_nvme_io_cmd_wqe_cmpl - Complete an NVME-over-FCP IO
@@ -1183,9 +1101,9 @@ lpfc_nvme_io_cmd_wqe_cmpl(struct lpfc_hba *phba, struct lpfc_iocbq *pwqeIn,
 #ifdef CONFIG_SCSI_LPFC_DEBUG_FS
 	if (lpfc_ncmd->ts_cmd_start) {
 		lpfc_ncmd->ts_isr_cmpl = pwqeIn->isr_timestamp;
-		lpfc_ncmd->ts_data_nvme = ktime_get_ns();
-		phba->ktime_last_cmd = lpfc_ncmd->ts_data_nvme;
-		lpfc_nvme_ktime(phba, lpfc_ncmd);
+		lpfc_ncmd->ts_data_io = ktime_get_ns();
+		phba->ktime_last_cmd = lpfc_ncmd->ts_data_io;
+		lpfc_io_ktime(phba, lpfc_ncmd);
 	}
 	if (unlikely(phba->hdwqstat_on & LPFC_CHECK_NVME_IO)) {
 		cpu = raw_smp_processor_id();
diff --git a/drivers/scsi/lpfc/lpfc_scsi.c b/drivers/scsi/lpfc/lpfc_scsi.c
index 3caa4fd2b55f..ad62fb3f3a54 100644
--- a/drivers/scsi/lpfc/lpfc_scsi.c
+++ b/drivers/scsi/lpfc/lpfc_scsi.c
@@ -4025,6 +4025,14 @@ lpfc_scsi_cmd_iocb_cmpl(struct lpfc_hba *phba, struct lpfc_iocbq *pIocbIn,
 	lpfc_cmd->pCmd = NULL;
 	spin_unlock(&lpfc_cmd->buf_lock);
 
+#ifdef CONFIG_SCSI_LPFC_DEBUG_FS
+	if (lpfc_cmd->ts_cmd_start) {
+		lpfc_cmd->ts_isr_cmpl = pIocbIn->isr_timestamp;
+		lpfc_cmd->ts_data_io = ktime_get_ns();
+		phba->ktime_last_cmd = lpfc_cmd->ts_data_io;
+		lpfc_io_ktime(phba, lpfc_cmd);
+	}
+#endif
 	/* The sdev is not guaranteed to be valid post scsi_done upcall. */
 	cmd->scsi_done(cmd);
 
@@ -4497,6 +4505,12 @@ lpfc_queuecommand(struct Scsi_Host *shost, struct scsi_cmnd *cmnd)
 	struct lpfc_io_buf *lpfc_cmd;
 	struct fc_rport *rport = starget_to_rport(scsi_target(cmnd->device));
 	int err, idx;
+#ifdef CONFIG_SCSI_LPFC_DEBUG_FS
+	uint64_t start = 0L;
+
+	if (phba->ktime_on)
+		start = ktime_get_ns();
+#endif
 
 	rdata = lpfc_rport_data_from_scsi_device(cmnd->device);
 
@@ -4622,6 +4636,15 @@ lpfc_queuecommand(struct Scsi_Host *shost, struct scsi_cmnd *cmnd)
 #endif
 	err = lpfc_sli_issue_iocb(phba, LPFC_FCP_RING,
 				  &lpfc_cmd->cur_iocbq, SLI_IOCB_RET_IOCB);
+#ifdef CONFIG_SCSI_LPFC_DEBUG_FS
+	if (start) {
+		lpfc_cmd->ts_cmd_start = start;
+		lpfc_cmd->ts_last_cmd = phba->ktime_last_cmd;
+		lpfc_cmd->ts_cmd_wqput = ktime_get_ns();
+	} else {
+		lpfc_cmd->ts_cmd_start = 0;
+	}
+#endif
 	if (err) {
 		lpfc_printf_vlog(vport, KERN_INFO, LOG_FCP,
 				 "3376 FCP could not issue IOCB err %x"
diff --git a/drivers/scsi/lpfc/lpfc_sli.h b/drivers/scsi/lpfc/lpfc_sli.h
index 7bcf922a8be2..93d976ea8c5d 100644
--- a/drivers/scsi/lpfc/lpfc_sli.h
+++ b/drivers/scsi/lpfc/lpfc_sli.h
@@ -446,6 +446,6 @@ struct lpfc_io_buf {
 	uint64_t ts_last_cmd;
 	uint64_t ts_cmd_wqput;
 	uint64_t ts_isr_cmpl;
-	uint64_t ts_data_nvme;
+	uint64_t ts_data_io;
 #endif
 };
-- 
2.16.4

[PATCH 11/12] lpfc: Remove prototype FIPS/DSS options from SLI-3

[James Smart]

During code review, identified dss feature that was a prototype only
and was never productized in SLI3. They shouldn't be there and prevents
reuse of the command areas.

Remove any code in the driver to deal with dss, including code to deal
with fips, which is associated with the dss feature.

Signed-off-by: Dick Kennedy <dick.kennedy@broadcom.com>
Signed-off-by: James Smart <jsmart2021@gmail.com>
---
 drivers/scsi/lpfc/lpfc.h      |  9 ++----
 drivers/scsi/lpfc/lpfc_attr.c | 69 -------------------------------------------
 drivers/scsi/lpfc/lpfc_hw.h   | 20 ++++---------
 drivers/scsi/lpfc/lpfc_mbox.c |  2 --
 drivers/scsi/lpfc/lpfc_sli.c  | 17 -----------
 5 files changed, 8 insertions(+), 109 deletions(-)

diff --git a/drivers/scsi/lpfc/lpfc.h b/drivers/scsi/lpfc/lpfc.h
index 747eda6ff8a4..8e2a356911a9 100644
--- a/drivers/scsi/lpfc/lpfc.h
+++ b/drivers/scsi/lpfc/lpfc.h
@@ -207,8 +207,7 @@ typedef struct lpfc_vpd {
 	} rev;
 	struct {
 #ifdef __BIG_ENDIAN_BITFIELD
-		uint32_t rsvd3  :19;  /* Reserved                             */
-		uint32_t cdss	: 1;  /* Configure Data Security SLI          */
+		uint32_t rsvd3  :20;  /* Reserved                             */
 		uint32_t rsvd2	: 3;  /* Reserved                             */
 		uint32_t cbg	: 1;  /* Configure BlockGuard                 */
 		uint32_t cmv	: 1;  /* Configure Max VPIs                   */
@@ -230,8 +229,7 @@ typedef struct lpfc_vpd {
 		uint32_t cmv	: 1;  /* Configure Max VPIs                   */
 		uint32_t cbg	: 1;  /* Configure BlockGuard                 */
 		uint32_t rsvd2	: 3;  /* Reserved                             */
-		uint32_t cdss	: 1;  /* Configure Data Security SLI          */
-		uint32_t rsvd3  :19;  /* Reserved                             */
+		uint32_t rsvd3  :20;  /* Reserved                             */
 #endif
 	} sli3Feat;
 } lpfc_vpd_t;
@@ -887,7 +885,6 @@ struct lpfc_hba {
 #define LPFC_INITIALIZE_LINK              0	/* do normal init_link mbox */
 #define LPFC_DELAY_INIT_LINK              1	/* layered driver hold off */
 #define LPFC_DELAY_INIT_LINK_INDEFINITELY 2	/* wait, manual intervention */
-	uint32_t cfg_enable_dss;
 	uint32_t cfg_fdmi_on;
 #define LPFC_FDMI_NO_SUPPORT	0	/* FDMI not supported */
 #define LPFC_FDMI_SUPPORT	1	/* FDMI supported? */
@@ -1156,8 +1153,6 @@ struct lpfc_hba {
 	uint32_t iocb_cnt;
 	uint32_t iocb_max;
 	atomic_t sdev_cnt;
-	uint8_t fips_spec_rev;
-	uint8_t fips_level;
 	spinlock_t devicelock;	/* lock for luns list */
 	mempool_t *device_data_mem_pool;
 	struct list_head luns;
diff --git a/drivers/scsi/lpfc/lpfc_attr.c b/drivers/scsi/lpfc/lpfc_attr.c
index ba786d08de01..4901ebdd561d 100644
--- a/drivers/scsi/lpfc/lpfc_attr.c
+++ b/drivers/scsi/lpfc/lpfc_attr.c
@@ -2230,66 +2230,6 @@ lpfc_poll_store(struct device *dev, struct device_attribute *attr,
 	return strlen(buf);
 }
 
-/**
- * lpfc_fips_level_show - Return the current FIPS level for the HBA
- * @dev: class unused variable.
- * @attr: device attribute, not used.
- * @buf: on return contains the module description text.
- *
- * Returns: size of formatted string.
- **/
-static ssize_t
-lpfc_fips_level_show(struct device *dev,  struct device_attribute *attr,
-		     char *buf)
-{
-	struct Scsi_Host  *shost = class_to_shost(dev);
-	struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
-	struct lpfc_hba   *phba = vport->phba;
-
-	return scnprintf(buf, PAGE_SIZE, "%d\n", phba->fips_level);
-}
-
-/**
- * lpfc_fips_rev_show - Return the FIPS Spec revision for the HBA
- * @dev: class unused variable.
- * @attr: device attribute, not used.
- * @buf: on return contains the module description text.
- *
- * Returns: size of formatted string.
- **/
-static ssize_t
-lpfc_fips_rev_show(struct device *dev,  struct device_attribute *attr,
-		   char *buf)
-{
-	struct Scsi_Host  *shost = class_to_shost(dev);
-	struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
-	struct lpfc_hba   *phba = vport->phba;
-
-	return scnprintf(buf, PAGE_SIZE, "%d\n", phba->fips_spec_rev);
-}
-
-/**
- * lpfc_dss_show - Return the current state of dss and the configured state
- * @dev: class converted to a Scsi_host structure.
- * @attr: device attribute, not used.
- * @buf: on return contains the formatted text.
- *
- * Returns: size of formatted string.
- **/
-static ssize_t
-lpfc_dss_show(struct device *dev, struct device_attribute *attr,
-	      char *buf)
-{
-	struct Scsi_Host *shost = class_to_shost(dev);
-	struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
-	struct lpfc_hba   *phba = vport->phba;
-
-	return scnprintf(buf, PAGE_SIZE, "%s - %sOperational\n",
-			(phba->cfg_enable_dss) ? "Enabled" : "Disabled",
-			(phba->sli3_options & LPFC_SLI3_DSS_ENABLED) ?
-				"" : "Not ");
-}
-
 /**
  * lpfc_sriov_hw_max_virtfn_show - Return maximum number of virtual functions
  * @dev: class converted to a Scsi_host structure.
@@ -2705,9 +2645,6 @@ static DEVICE_ATTR(max_xri, S_IRUGO, lpfc_max_xri_show, NULL);
 static DEVICE_ATTR(used_xri, S_IRUGO, lpfc_used_xri_show, NULL);
 static DEVICE_ATTR(npiv_info, S_IRUGO, lpfc_npiv_info_show, NULL);
 static DEVICE_ATTR_RO(lpfc_temp_sensor);
-static DEVICE_ATTR_RO(lpfc_fips_level);
-static DEVICE_ATTR_RO(lpfc_fips_rev);
-static DEVICE_ATTR_RO(lpfc_dss);
 static DEVICE_ATTR_RO(lpfc_sriov_hw_max_virtfn);
 static DEVICE_ATTR(protocol, S_IRUGO, lpfc_sli4_protocol_show, NULL);
 static DEVICE_ATTR(lpfc_xlane_supported, S_IRUGO, lpfc_oas_supported_show,
@@ -6251,9 +6188,6 @@ struct device_attribute *lpfc_hba_attrs[] = {
 	&dev_attr_pt,
 	&dev_attr_txq_hw,
 	&dev_attr_txcmplq_hw,
-	&dev_attr_lpfc_fips_level,
-	&dev_attr_lpfc_fips_rev,
-	&dev_attr_lpfc_dss,
 	&dev_attr_lpfc_sriov_hw_max_virtfn,
 	&dev_attr_protocol,
 	&dev_attr_lpfc_xlane_supported,
@@ -6289,8 +6223,6 @@ struct device_attribute *lpfc_vport_attrs[] = {
 	&dev_attr_lpfc_max_scsicmpl_time,
 	&dev_attr_lpfc_stat_data_ctrl,
 	&dev_attr_lpfc_static_vport,
-	&dev_attr_lpfc_fips_level,
-	&dev_attr_lpfc_fips_rev,
 	NULL,
 };
 
@@ -7399,7 +7331,6 @@ lpfc_get_cfgparam(struct lpfc_hba *phba)
 	lpfc_suppress_link_up_init(phba, lpfc_suppress_link_up);
 	lpfc_delay_discovery_init(phba, lpfc_delay_discovery);
 	lpfc_sli_mode_init(phba, lpfc_sli_mode);
-	phba->cfg_enable_dss = 1;
 	lpfc_enable_mds_diags_init(phba, lpfc_enable_mds_diags);
 	lpfc_ras_fwlog_buffsize_init(phba, lpfc_ras_fwlog_buffsize);
 	lpfc_ras_fwlog_level_init(phba, lpfc_ras_fwlog_level);
diff --git a/drivers/scsi/lpfc/lpfc_hw.h b/drivers/scsi/lpfc/lpfc_hw.h
index ae51c0dbba0a..c20034b3101c 100644
--- a/drivers/scsi/lpfc/lpfc_hw.h
+++ b/drivers/scsi/lpfc/lpfc_hw.h
@@ -3262,8 +3262,7 @@ typedef struct {
 #endif
 
 #ifdef __BIG_ENDIAN_BITFIELD
-	uint32_t rsvd1     : 19;  /* Reserved                             */
-	uint32_t cdss      :  1;  /* Configure Data Security SLI          */
+	uint32_t rsvd1     : 20;  /* Reserved                             */
 	uint32_t casabt    :  1;  /* Configure async abts status notice   */
 	uint32_t rsvd2     :  2;  /* Reserved                             */
 	uint32_t cbg       :  1;  /* Configure BlockGuard                 */
@@ -3287,12 +3286,10 @@ typedef struct {
 	uint32_t cbg       :  1;  /* Configure BlockGuard                 */
 	uint32_t rsvd2     :  2;  /* Reserved                             */
 	uint32_t casabt    :  1;  /* Configure async abts status notice   */
-	uint32_t cdss      :  1;  /* Configure Data Security SLI          */
-	uint32_t rsvd1     : 19;  /* Reserved                             */
+	uint32_t rsvd1     : 20;  /* Reserved                             */
 #endif
 #ifdef __BIG_ENDIAN_BITFIELD
-	uint32_t rsvd3     : 19;  /* Reserved                             */
-	uint32_t gdss      :  1;  /* Configure Data Security SLI          */
+	uint32_t rsvd3     : 20;  /* Reserved                             */
 	uint32_t gasabt    :  1;  /* Grant async abts status notice       */
 	uint32_t rsvd4     :  2;  /* Reserved                             */
 	uint32_t gbg       :  1;  /* Grant BlockGuard                     */
@@ -3316,8 +3313,7 @@ typedef struct {
 	uint32_t gbg       :  1;  /* Grant BlockGuard                     */
 	uint32_t rsvd4     :  2;  /* Reserved                             */
 	uint32_t gasabt    :  1;  /* Grant async abts status notice       */
-	uint32_t gdss      :  1;  /* Configure Data Security SLI          */
-	uint32_t rsvd3     : 19;  /* Reserved                             */
+	uint32_t rsvd3     : 20;  /* Reserved                             */
 #endif
 
 #ifdef __BIG_ENDIAN_BITFIELD
@@ -3339,15 +3335,11 @@ typedef struct {
 	uint32_t rsvd6;           /* Reserved                             */
 
 #ifdef __BIG_ENDIAN_BITFIELD
-	uint32_t fips_rev   : 3;   /* FIPS Spec Revision                   */
-	uint32_t fips_level : 4;   /* FIPS Level                           */
-	uint32_t sec_err    : 9;   /* security crypto error                */
+	uint32_t rsvd7      : 16;
 	uint32_t max_vpi    : 16;  /* Max number of virt N-Ports           */
 #else	/*  __LITTLE_ENDIAN */
 	uint32_t max_vpi    : 16;  /* Max number of virt N-Ports           */
-	uint32_t sec_err    : 9;   /* security crypto error                */
-	uint32_t fips_level : 4;   /* FIPS Level                           */
-	uint32_t fips_rev   : 3;   /* FIPS Spec Revision                   */
+	uint32_t rsvd7      : 16;
 #endif
 
 } CONFIG_PORT_VAR;
diff --git a/drivers/scsi/lpfc/lpfc_mbox.c b/drivers/scsi/lpfc/lpfc_mbox.c
index d1773c01d2b3..e35b52b66d6c 100644
--- a/drivers/scsi/lpfc/lpfc_mbox.c
+++ b/drivers/scsi/lpfc/lpfc_mbox.c
@@ -1299,8 +1299,6 @@ lpfc_config_port(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb)
 	if (phba->sli_rev == LPFC_SLI_REV3 && phba->vpd.sli3Feat.cerbm) {
 		if (phba->cfg_enable_bg)
 			mb->un.varCfgPort.cbg = 1; /* configure BlockGuard */
-		if (phba->cfg_enable_dss)
-			mb->un.varCfgPort.cdss = 1; /* Configure Security */
 		mb->un.varCfgPort.cerbm = 1; /* Request HBQs */
 		mb->un.varCfgPort.ccrp = 1; /* Command Ring Polling */
 		mb->un.varCfgPort.max_hbq = lpfc_sli_hbq_count();
diff --git a/drivers/scsi/lpfc/lpfc_sli.c b/drivers/scsi/lpfc/lpfc_sli.c
index 52ccaebd6f2c..b6fb665e6ec4 100644
--- a/drivers/scsi/lpfc/lpfc_sli.c
+++ b/drivers/scsi/lpfc/lpfc_sli.c
@@ -5032,23 +5032,6 @@ lpfc_sli_config_port(struct lpfc_hba *phba, int sli_mode)
 
 		} else
 			phba->max_vpi = 0;
-		phba->fips_level = 0;
-		phba->fips_spec_rev = 0;
-		if (pmb->u.mb.un.varCfgPort.gdss) {
-			phba->sli3_options |= LPFC_SLI3_DSS_ENABLED;
-			phba->fips_level = pmb->u.mb.un.varCfgPort.fips_level;
-			phba->fips_spec_rev = pmb->u.mb.un.varCfgPort.fips_rev;
-			lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
-					"2850 Security Crypto Active. FIPS x%d "
-					"(Spec Rev: x%d)",
-					phba->fips_level, phba->fips_spec_rev);
-		}
-		if (pmb->u.mb.un.varCfgPort.sec_err) {
-			lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
-					"2856 Config Port Security Crypto "
-					"Error: x%x ",
-					pmb->u.mb.un.varCfgPort.sec_err);
-		}
 		if (pmb->u.mb.un.varCfgPort.gerbm)
 			phba->sli3_options |= LPFC_SLI3_HBQ_ENABLED;
 		if (pmb->u.mb.un.varCfgPort.gcrp)
-- 
2.16.4

[PATCH 12/12] lpfc: Update lpfc version to 12.8.0.0

[James Smart]

Update lpfc version to 12.8.0.0

Signed-off-by: Dick Kennedy <dick.kennedy@broadcom.com>
Signed-off-by: James Smart <jsmart2021@gmail.com>
---
 drivers/scsi/lpfc/lpfc_version.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/scsi/lpfc/lpfc_version.h b/drivers/scsi/lpfc/lpfc_version.h
index c4ab006e6ecc..ca40c47cfbe0 100644
--- a/drivers/scsi/lpfc/lpfc_version.h
+++ b/drivers/scsi/lpfc/lpfc_version.h
@@ -20,7 +20,7 @@
  * included with this package.                                     *
  *******************************************************************/
 
-#define LPFC_DRIVER_VERSION "12.6.0.4"
+#define LPFC_DRIVER_VERSION "12.8.0.0"
 #define LPFC_DRIVER_NAME		"lpfc"
 
 /* Used for SLI 2/3 */
-- 
2.16.4

Re: [PATCH 09/12] lpfc: Change default SCSI LUN QD to 64

[Daniel Wagner]

Hi James,

On Sun, Mar 22, 2020 at 11:13:01AM -0700, James Smart wrote:
> The default lun queue depth by the driver has been 30 for many years.
> However, this value, when used with more recent hardware, has actually
> throttled some tests that concentrate io on a lun.
> 
> Increase the default lun queue depth to 64.
> 
> Queue full handling, reported by the target, remains in effect and
> unchanged.
> 
> Signed-off-by: Dick Kennedy <dick.kennedy@broadcom.com>
> Signed-off-by: James Smart <jsmart2021@gmail.com>
> ---
>  drivers/scsi/lpfc/lpfc_attr.c | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git a/drivers/scsi/lpfc/lpfc_attr.c b/drivers/scsi/lpfc/lpfc_attr.c
> index 4317c9ce7eca..ba786d08de01 100644
> --- a/drivers/scsi/lpfc/lpfc_attr.c
> +++ b/drivers/scsi/lpfc/lpfc_attr.c
> @@ -3870,7 +3870,7 @@ LPFC_VPORT_ATTR_R(enable_da_id, 1, 0, 1,
>  # lun_queue_depth:  This parameter is used to limit the number of outstanding
>  # commands per FCP LUN. Value range is [1,512]. Default value is 30.

The documentation should also be updated here                      ^^^^

>  */
> -LPFC_VPORT_ATTR_R(lun_queue_depth, 30, 1, 512,
> +LPFC_VPORT_ATTR_R(lun_queue_depth, 64, 1, 512,
>  		  "Max number of FCP commands we can queue to a specific LUN");
>  

Thanks,
Daniel

Re: [PATCH 09/12] lpfc: Change default SCSI LUN QD to 64

[James Smart]

On 3/23/2020 4:05 AM, Daniel Wagner wrote:
>>   # commands per FCP LUN. Value range is [1,512]. Default value is 30.
> 
> The documentation should also be updated here                      ^^^^
> 

yep - will repost this one patch.  Removing the values from the comment 
as it not really necessary. All values (min, max, default) are specified 
in the macro.

-- james

Re: [PATCH 00/12] lpfc: Update lpfc to revision 12.8.0.0

[Martin K. Petersen]

James,

> Patch set contains mainly fixes, a change to QD default, and a few
> cleanups.

Applied to 5.7/scsi-queue. Please make sure to use the -vN argument to
git-send-email when sending updated patches. Otherwise patchwork and b4
won't handle them correctly.

-- 
Martin K. Petersen	Oracle Linux Engineering