[PATCH v2 2/2] nvme-core: do ioccsz/iorcsz validation only for I/O controllers

Kamaljit Singh posted 2 patches 5 months ago
[PATCH v2 2/2] nvme-core: do ioccsz/iorcsz validation only for I/O controllers
Posted by Kamaljit Singh 5 months ago
An administrative controller does not support I/O queues, hence it
should ignore existing checks for IOCCSZ/IORCSZ. Currently, these checks
only exclude a discovery controller but need to also exclude an
administrative controller.

Signed-off-by: Kamaljit Singh <kamaljit.singh@opensource.wdc.com>
---
 drivers/nvme/host/core.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/nvme/host/core.c b/drivers/nvme/host/core.c
index fab672e50510..ef6f84d677d8 100644
--- a/drivers/nvme/host/core.c
+++ b/drivers/nvme/host/core.c
@@ -3496,14 +3496,14 @@ static int nvme_check_ctrl_fabric_info(struct nvme_ctrl *ctrl, struct nvme_id_ct
 		return -EINVAL;
 	}
 
-	if (!nvme_discovery_ctrl(ctrl) && ctrl->ioccsz < 4) {
+	if (nvme_is_io_ctrl(ctrl) && ctrl->ioccsz < 4) {
 		dev_err(ctrl->device,
 			"I/O queue command capsule supported size %d < 4\n",
 			ctrl->ioccsz);
 		return -EINVAL;
 	}
 
-	if (!nvme_discovery_ctrl(ctrl) && ctrl->iorcsz < 1) {
+	if (nvme_is_io_ctrl(ctrl) && ctrl->iorcsz < 1) {
 		dev_err(ctrl->device,
 			"I/O queue response capsule supported size %d < 1\n",
 			ctrl->iorcsz);
-- 
2.43.0
Re: [PATCH v2 2/2] nvme-core: do ioccsz/iorcsz validation only for I/O controllers
Posted by Hannes Reinecke 5 months ago
On 9/6/25 01:25, Kamaljit Singh wrote:
> An administrative controller does not support I/O queues, hence it
> should ignore existing checks for IOCCSZ/IORCSZ. Currently, these checks
> only exclude a discovery controller but need to also exclude an
> administrative controller.
> 
> Signed-off-by: Kamaljit Singh <kamaljit.singh@opensource.wdc.com>
> ---
>   drivers/nvme/host/core.c | 4 ++--
>   1 file changed, 2 insertions(+), 2 deletions(-)
> 
Reviewed-by: Hannes Reinecke <hare@suse.de>

Cheers,

Hannes
-- 
Dr. Hannes Reinecke                  Kernel Storage Architect
hare@suse.de                                +49 911 74053 688
SUSE Software Solutions GmbH, Frankenstr. 146, 90461 Nürnberg
HRB 36809 (AG Nürnberg), GF: I. Totev, A. McDonald, W. Knoblich
Re: [PATCH v2 2/2] nvme-core: do ioccsz/iorcsz validation only for I/O controllers
Posted by Kamaljit Singh 4 months, 3 weeks ago
On Mon, Sep 08, 2025 at 02:57:00PM +0200, Hannes Reinecke wrote:
> On 9/6/25 01:25, Kamaljit Singh wrote:
> > An administrative controller does not support I/O queues, hence it
> > should ignore existing checks for IOCCSZ/IORCSZ. Currently, these checks
> > only exclude a discovery controller but need to also exclude an
> > administrative controller.
> > 
> > Signed-off-by: Kamaljit Singh <kamaljit.singh@opensource.wdc.com>
> > ---
> >   drivers/nvme/host/core.c | 4 ++--
> >   1 file changed, 2 insertions(+), 2 deletions(-)
> > 
> Reviewed-by: Hannes Reinecke <hare@suse.de>
> 
Please review and provide any feedback for both of these patches.

Thanks,
Kamaljit