From: Thomas Bogendoerfer <[email protected]>
FCOE offloading failed with:
[qed_sp_fcoe_func_start:150(sp-0-3b:00.02)]Cannot satisfy CQ amount. CQs
requested 8, CQs available 6. Aborting function start
[qed_fcoe_start:821()]Failed to start fcoe
[__qedf_probe:3041]:6: Cannot start FCoE function.
The reason is a newly introduced check in the qed main part. This change
also provides the information about how many CQs are available, so we
simply limit the number of requested CQs..
Fixes: 3c5da9427802 ("qed: Share additional information with qedf")
Signed-off-by: Thomas Bogendoerfer <[email protected]>
---
Changes in v2:
- integrated suggested change from Chad Dupuis
drivers/scsi/qedf/qedf.h | 3 ++-
drivers/scsi/qedf/qedf_main.c | 20 +++++++++-----------
2 files changed, 11 insertions(+), 12 deletions(-)
diff --git a/drivers/scsi/qedf/qedf.h b/drivers/scsi/qedf/qedf.h
index 4d038926a455..351f06dfc5a0 100644
--- a/drivers/scsi/qedf/qedf.h
+++ b/drivers/scsi/qedf/qedf.h
@@ -528,7 +528,8 @@ struct fip_vlan {
#define QEDF_WRITE (1 << 0)
#define MAX_FIBRE_LUNS 0xffffffff
-#define QEDF_MAX_NUM_CQS 8
+#define MIN_NUM_CPUS_MSIX(x) min_t(u32, x->dev_info.num_cqs, \
+ num_online_cpus())
/*
* PCI function probe defines
diff --git a/drivers/scsi/qedf/qedf_main.c b/drivers/scsi/qedf/qedf_main.c
index 7786c97e033f..1d13c9ca517d 100644
--- a/drivers/scsi/qedf/qedf_main.c
+++ b/drivers/scsi/qedf/qedf_main.c
@@ -2760,11 +2760,9 @@ static int qedf_set_fcoe_pf_param(struct qedf_ctx *qedf)
* we allocation is the minimum off:
*
* Number of CPUs
- * Number of MSI-X vectors
- * Max number allocated in hardware (QEDF_MAX_NUM_CQS)
+ * Number allocated by qed for our PCI function
*/
- qedf->num_queues = min((unsigned int)QEDF_MAX_NUM_CQS,
- num_online_cpus());
+ qedf->num_queues = MIN_NUM_CPUS_MSIX(qedf);
QEDF_INFO(&(qedf->dbg_ctx), QEDF_LOG_DISC, "Number of CQs is %d.\n",
qedf->num_queues);
@@ -2962,6 +2960,13 @@ static int __qedf_probe(struct pci_dev *pdev, int mode)
goto err1;
}
+ /* Learn information crucial for qedf to progress */
+ rc = qed_ops->fill_dev_info(qedf->cdev, &qedf->dev_info);
+ if (rc) {
+ QEDF_ERR(&(qedf->dbg_ctx), "Failed to dev info.\n");
+ goto err1;
+ }
+
/* queue allocation code should come here
* order should be
* slowpath_start
@@ -2977,13 +2982,6 @@ static int __qedf_probe(struct pci_dev *pdev, int mode)
}
qed_ops->common->update_pf_params(qedf->cdev, &qedf->pf_params);
- /* Learn information crucial for qedf to progress */
- rc = qed_ops->fill_dev_info(qedf->cdev, &qedf->dev_info);
- if (rc) {
- QEDF_ERR(&(qedf->dbg_ctx), "Failed to dev info.\n");
- goto err1;
- }
-
/* Record BDQ producer doorbell addresses */
qedf->bdq_primary_prod = qedf->dev_info.primary_dbq_rq_addr;
qedf->bdq_secondary_prod = qedf->dev_info.secondary_bdq_rq_addr;
--
2.12.3
Looks good,
Reviewed-by: Johannes Thumshirn <[email protected]>
--
Johannes Thumshirn Storage
[email protected] +49 911 74053 689
SUSE LINUX GmbH, Maxfeldstr. 5, 90409 N?rnberg
GF: Felix Imend?rffer, Jane Smithard, Graham Norton
HRB 21284 (AG N?rnberg)
Key fingerprint = EC38 9CAB C2C4 F25D 8600 D0D0 0393 969D 2D76 0850
On Tue, 25 Jul 2017, 5:19am, Thomas Bogendoerfer wrote:
> From: Thomas Bogendoerfer <[email protected]>
>
> FCOE offloading failed with:
>
> [qed_sp_fcoe_func_start:150(sp-0-3b:00.02)]Cannot satisfy CQ amount. CQs
> requested 8, CQs available 6. Aborting function start
> [qed_fcoe_start:821()]Failed to start fcoe
> [__qedf_probe:3041]:6: Cannot start FCoE function.
>
> The reason is a newly introduced check in the qed main part. This change
> also provides the information about how many CQs are available, so we
> simply limit the number of requested CQs..
>
> Fixes: 3c5da9427802 ("qed: Share additional information with qedf")
> Signed-off-by: Thomas Bogendoerfer <[email protected]>
> ---
>
> Changes in v2:
> - integrated suggested change from Chad Dupuis
>
> drivers/scsi/qedf/qedf.h | 3 ++-
> drivers/scsi/qedf/qedf_main.c | 20 +++++++++-----------
> 2 files changed, 11 insertions(+), 12 deletions(-)
>
V2 looks good.
Acked-by: Chad Dupuis <[email protected]>
Thomas,
> FCOE offloading failed with:
>
> [qed_sp_fcoe_func_start:150(sp-0-3b:00.02)]Cannot satisfy CQ amount. CQs
> requested 8, CQs available 6. Aborting function start
> [qed_fcoe_start:821()]Failed to start fcoe
> [__qedf_probe:3041]:6: Cannot start FCoE function.
>
> The reason is a newly introduced check in the qed main part. This
> change also provides the information about how many CQs are available,
> so we simply limit the number of requested CQs..
Applied to 4.13/scsi-fixes. Thank you!
--
Martin K. Petersen Oracle Linux Engineering