From: Brian King <brking@linux.vnet.ibm.com>
To: Tyrel Datwyler <tyreld@linux.ibm.com>,
james.bottomley@hansenpartnership.com
Cc: martin.petersen@oracle.com, linux-scsi@vger.kernel.org,
linuxppc-dev@lists.ozlabs.org, linux-kernel@vger.kernel.org,
brking@linux.ibm.com
Subject: Re: [PATCH v4 21/21] ibmvfc: provide modules parameters for MQ settings
Date: Wed, 13 Jan 2021 12:57:26 -0600 [thread overview]
Message-ID: <4d5afe7a-31ad-8560-9d00-6e91322bf6b5@linux.vnet.ibm.com> (raw)
In-Reply-To: <20210111231225.105347-22-tyreld@linux.ibm.com>
On 1/11/21 5:12 PM, Tyrel Datwyler wrote:
> @@ -5880,12 +5936,13 @@ static int ibmvfc_probe(struct vio_dev *vdev, const struct vio_device_id *id)
>
> shost->transportt = ibmvfc_transport_template;
> shost->can_queue = max_requests;
> + shost->can_queue = (max_requests / nr_scsi_hw_queues);
This looks to be in conflict with the fact that the first patch requested a shared tag set, right?
> shost->max_lun = max_lun;
> shost->max_id = max_targets;
> shost->max_sectors = IBMVFC_MAX_SECTORS;
> shost->max_cmd_len = IBMVFC_MAX_CDB_LEN;
> shost->unique_id = shost->host_no;
> - shost->nr_hw_queues = IBMVFC_MQ ? IBMVFC_SCSI_HW_QUEUES : 1;
> + shost->nr_hw_queues = mq_enabled ? nr_scsi_hw_queues : 1;
You might want to range check this, to make sure its sane.
>
> vhost = shost_priv(shost);
> INIT_LIST_HEAD(&vhost->targets);
> @@ -5897,8 +5954,8 @@ static int ibmvfc_probe(struct vio_dev *vdev, const struct vio_device_id *id)
> vhost->log_level = log_level;
> vhost->task_set = 1;
>
> - vhost->mq_enabled = IBMVFC_MQ;
> - vhost->client_scsi_channels = IBMVFC_SCSI_CHANNELS;
> + vhost->mq_enabled = mq_enabled;
> + vhost->client_scsi_channels = min(nr_scsi_hw_queues, nr_scsi_channels);
> vhost->using_channels = 0;
> vhost->do_enquiry = 1;
>
>
--
Brian King
Power Linux I/O
IBM Linux Technology Center
next prev parent reply other threads:[~2021-01-13 18:58 UTC|newest]
Thread overview: 32+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-01-11 23:12 [PATCH v4 00/21] ibmvfc: initial MQ development Tyrel Datwyler
2021-01-11 23:12 ` [PATCH v4 01/21] ibmvfc: add vhost fields and defaults for MQ enablement Tyrel Datwyler
2021-01-12 11:43 ` John Garry
2021-01-12 22:54 ` Brian King
2021-01-13 0:33 ` Tyrel Datwyler
2021-01-13 17:13 ` Brian King
2021-01-14 1:27 ` Ming Lei
2021-01-14 17:24 ` Brian King
2021-01-15 1:47 ` Ming Lei
2021-01-11 23:12 ` [PATCH v4 02/21] ibmvfc: move event pool init/free routines Tyrel Datwyler
2021-01-11 23:12 ` [PATCH v4 03/21] ibmvfc: init/free event pool during queue allocation/free Tyrel Datwyler
2021-01-11 23:12 ` [PATCH v4 04/21] ibmvfc: add size parameter to ibmvfc_init_event_pool Tyrel Datwyler
2021-01-11 23:12 ` [PATCH v4 05/21] ibmvfc: define hcall wrapper for registering a Sub-CRQ Tyrel Datwyler
2021-01-11 23:12 ` [PATCH v4 06/21] ibmvfc: add Subordinate CRQ definitions Tyrel Datwyler
2021-01-11 23:12 ` [PATCH v4 07/21] ibmvfc: add alloc/dealloc routines for SCSI Sub-CRQ Channels Tyrel Datwyler
2021-01-11 23:12 ` [PATCH v4 08/21] ibmvfc: add Sub-CRQ IRQ enable/disable routine Tyrel Datwyler
2021-01-11 23:12 ` [PATCH v4 09/21] ibmvfc: add handlers to drain and complete Sub-CRQ responses Tyrel Datwyler
2021-01-11 23:12 ` [PATCH v4 10/21] ibmvfc: define Sub-CRQ interrupt handler routine Tyrel Datwyler
2021-01-11 23:12 ` [PATCH v4 11/21] ibmvfc: map/request irq and register Sub-CRQ interrupt handler Tyrel Datwyler
2021-01-11 23:12 ` [PATCH v4 12/21] ibmvfc: implement channel enquiry and setup commands Tyrel Datwyler
2021-01-11 23:12 ` [PATCH v4 13/21] ibmvfc: advertise client support for using hardware channels Tyrel Datwyler
2021-01-11 23:12 ` [PATCH v4 14/21] ibmvfc: set and track hw queue in ibmvfc_event struct Tyrel Datwyler
2021-01-11 23:12 ` [PATCH v4 15/21] ibmvfc: send commands down HW Sub-CRQ when channelized Tyrel Datwyler
2021-01-11 23:12 ` [PATCH v4 16/21] ibmvfc: register Sub-CRQ handles with VIOS during channel setup Tyrel Datwyler
2021-01-11 23:12 ` [PATCH v4 17/21] ibmvfc: add cancel mad initialization helper Tyrel Datwyler
2021-01-11 23:12 ` [PATCH v4 18/21] ibmvfc: send Cancel MAD down each hw scsi channel Tyrel Datwyler
2021-01-12 21:46 ` Brian King
2021-01-11 23:12 ` [PATCH v4 19/21] ibmvfc: purge scsi channels after transport loss/reset Tyrel Datwyler
2021-01-11 23:12 ` [PATCH v4 20/21] ibmvfc: enable MQ and set reasonable defaults Tyrel Datwyler
2021-01-11 23:12 ` [PATCH v4 21/21] ibmvfc: provide modules parameters for MQ settings Tyrel Datwyler
2021-01-13 18:57 ` Brian King [this message]
2021-01-13 18:58 ` [PATCH v4 00/21] ibmvfc: initial MQ development Brian King
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