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
WARNING: multiple messages have this Message-ID (diff)
From: Brian King <brking@linux.vnet.ibm.com> To: Tyrel Datwyler <tyreld@linux.ibm.com>, james.bottomley@hansenpartnership.com Cc: brking@linux.ibm.com, linuxppc-dev@lists.ozlabs.org, linux-scsi@vger.kernel.org, martin.petersen@oracle.com, linux-kernel@vger.kernel.org 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: 64+ 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 ` Tyrel Datwyler 2021-01-11 23:12 ` [PATCH v4 01/21] ibmvfc: add vhost fields and defaults for MQ enablement Tyrel Datwyler 2021-01-11 23:12 ` Tyrel Datwyler 2021-01-12 11:43 ` John Garry 2021-01-12 11:43 ` John Garry 2021-01-12 22:54 ` Brian King 2021-01-12 22:54 ` Brian King 2021-01-13 0:33 ` Tyrel Datwyler 2021-01-13 0:33 ` Tyrel Datwyler 2021-01-13 17:13 ` Brian King 2021-01-13 17:13 ` Brian King 2021-01-14 1:27 ` Ming Lei 2021-01-14 1:27 ` Ming Lei 2021-01-14 17:24 ` Brian King 2021-01-14 17:24 ` Brian King 2021-01-15 1:47 ` Ming Lei 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 ` 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 ` 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 ` 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 ` Tyrel Datwyler 2021-01-11 23:12 ` [PATCH v4 06/21] ibmvfc: add Subordinate CRQ definitions Tyrel Datwyler 2021-01-11 23:12 ` 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 ` 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 ` 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 ` 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 ` 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 ` 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 ` 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 ` 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 ` 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 ` 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 ` Tyrel Datwyler 2021-01-11 23:12 ` [PATCH v4 17/21] ibmvfc: add cancel mad initialization helper Tyrel Datwyler 2021-01-11 23:12 ` Tyrel Datwyler 2021-01-11 23:12 ` [PATCH v4 18/21] ibmvfc: send Cancel MAD down each hw scsi channel Tyrel Datwyler 2021-01-11 23:12 ` Tyrel Datwyler 2021-01-12 21:46 ` Brian King 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 ` 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 ` Tyrel Datwyler 2021-01-11 23:12 ` [PATCH v4 21/21] ibmvfc: provide modules parameters for MQ settings Tyrel Datwyler 2021-01-11 23:12 ` Tyrel Datwyler 2021-01-13 18:57 ` Brian King [this message] 2021-01-13 18:57 ` Brian King 2021-01-13 18:58 ` [PATCH v4 00/21] ibmvfc: initial MQ development Brian King 2021-01-13 18:58 ` Brian King
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