From: Tyrel Datwyler <tyreld@linux.ibm.com> To: 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, Tyrel Datwyler <tyreld@linux.ibm.com> Subject: [PATCH v4 04/21] ibmvfc: add size parameter to ibmvfc_init_event_pool Date: Mon, 11 Jan 2021 17:12:08 -0600 [thread overview] Message-ID: <20210111231225.105347-5-tyreld@linux.ibm.com> (raw) In-Reply-To: <20210111231225.105347-1-tyreld@linux.ibm.com> With the upcoming addition of Sub-CRQs the event pool size may vary per-queue. Add a size parameter to ibmvfc_init_event_pool such that different size event pools can be requested by ibmvfc_alloc_queue. Signed-off-by: Tyrel Datwyler <tyreld@linux.ibm.com> --- drivers/scsi/ibmvscsi/ibmvfc.c | 25 ++++++++++++++++--------- 1 file changed, 16 insertions(+), 9 deletions(-) diff --git a/drivers/scsi/ibmvscsi/ibmvfc.c b/drivers/scsi/ibmvscsi/ibmvfc.c index 9330f5a65a7e..524e81164d70 100644 --- a/drivers/scsi/ibmvscsi/ibmvfc.c +++ b/drivers/scsi/ibmvscsi/ibmvfc.c @@ -723,19 +723,23 @@ static int ibmvfc_send_crq_init_complete(struct ibmvfc_host *vhost) * Returns zero on success. **/ static int ibmvfc_init_event_pool(struct ibmvfc_host *vhost, - struct ibmvfc_queue *queue) + struct ibmvfc_queue *queue, + unsigned int size) { int i; struct ibmvfc_event_pool *pool = &queue->evt_pool; ENTER; - pool->size = max_requests + IBMVFC_NUM_INTERNAL_REQ; - pool->events = kcalloc(pool->size, sizeof(*pool->events), GFP_KERNEL); + if (!size) + return 0; + + pool->size = size; + pool->events = kcalloc(size, sizeof(*pool->events), GFP_KERNEL); if (!pool->events) return -ENOMEM; pool->iu_storage = dma_alloc_coherent(vhost->dev, - pool->size * sizeof(*pool->iu_storage), + size * sizeof(*pool->iu_storage), &pool->iu_token, 0); if (!pool->iu_storage) { @@ -747,7 +751,7 @@ static int ibmvfc_init_event_pool(struct ibmvfc_host *vhost, INIT_LIST_HEAD(&queue->free); spin_lock_init(&queue->l_lock); - for (i = 0; i < pool->size; ++i) { + for (i = 0; i < size; ++i) { struct ibmvfc_event *evt = &pool->events[i]; atomic_set(&evt->free, 1); @@ -5013,6 +5017,7 @@ static int ibmvfc_alloc_queue(struct ibmvfc_host *vhost, { struct device *dev = vhost->dev; size_t fmt_size; + unsigned int pool_size = 0; ENTER; spin_lock_init(&queue->_lock); @@ -5021,10 +5026,7 @@ static int ibmvfc_alloc_queue(struct ibmvfc_host *vhost, switch (fmt) { case IBMVFC_CRQ_FMT: fmt_size = sizeof(*queue->msgs.crq); - if (ibmvfc_init_event_pool(vhost, queue)) { - dev_err(dev, "Couldn't initialize event pool.\n"); - return -ENOMEM; - } + pool_size = max_requests + IBMVFC_NUM_INTERNAL_REQ; break; case IBMVFC_ASYNC_FMT: fmt_size = sizeof(*queue->msgs.async); @@ -5034,6 +5036,11 @@ static int ibmvfc_alloc_queue(struct ibmvfc_host *vhost, return -EINVAL; } + if (ibmvfc_init_event_pool(vhost, queue, pool_size)) { + dev_err(dev, "Couldn't initialize event pool.\n"); + return -ENOMEM; + } + queue->msgs.handle = (void *)get_zeroed_page(GFP_KERNEL); if (!queue->msgs.handle) return -ENOMEM; -- 2.27.0
WARNING: multiple messages have this Message-ID (diff)
From: Tyrel Datwyler <tyreld@linux.ibm.com> To: james.bottomley@hansenpartnership.com Cc: Tyrel Datwyler <tyreld@linux.ibm.com>, martin.petersen@oracle.com, linux-scsi@vger.kernel.org, linux-kernel@vger.kernel.org, brking@linux.ibm.com, linuxppc-dev@lists.ozlabs.org Subject: [PATCH v4 04/21] ibmvfc: add size parameter to ibmvfc_init_event_pool Date: Mon, 11 Jan 2021 17:12:08 -0600 [thread overview] Message-ID: <20210111231225.105347-5-tyreld@linux.ibm.com> (raw) In-Reply-To: <20210111231225.105347-1-tyreld@linux.ibm.com> With the upcoming addition of Sub-CRQs the event pool size may vary per-queue. Add a size parameter to ibmvfc_init_event_pool such that different size event pools can be requested by ibmvfc_alloc_queue. Signed-off-by: Tyrel Datwyler <tyreld@linux.ibm.com> --- drivers/scsi/ibmvscsi/ibmvfc.c | 25 ++++++++++++++++--------- 1 file changed, 16 insertions(+), 9 deletions(-) diff --git a/drivers/scsi/ibmvscsi/ibmvfc.c b/drivers/scsi/ibmvscsi/ibmvfc.c index 9330f5a65a7e..524e81164d70 100644 --- a/drivers/scsi/ibmvscsi/ibmvfc.c +++ b/drivers/scsi/ibmvscsi/ibmvfc.c @@ -723,19 +723,23 @@ static int ibmvfc_send_crq_init_complete(struct ibmvfc_host *vhost) * Returns zero on success. **/ static int ibmvfc_init_event_pool(struct ibmvfc_host *vhost, - struct ibmvfc_queue *queue) + struct ibmvfc_queue *queue, + unsigned int size) { int i; struct ibmvfc_event_pool *pool = &queue->evt_pool; ENTER; - pool->size = max_requests + IBMVFC_NUM_INTERNAL_REQ; - pool->events = kcalloc(pool->size, sizeof(*pool->events), GFP_KERNEL); + if (!size) + return 0; + + pool->size = size; + pool->events = kcalloc(size, sizeof(*pool->events), GFP_KERNEL); if (!pool->events) return -ENOMEM; pool->iu_storage = dma_alloc_coherent(vhost->dev, - pool->size * sizeof(*pool->iu_storage), + size * sizeof(*pool->iu_storage), &pool->iu_token, 0); if (!pool->iu_storage) { @@ -747,7 +751,7 @@ static int ibmvfc_init_event_pool(struct ibmvfc_host *vhost, INIT_LIST_HEAD(&queue->free); spin_lock_init(&queue->l_lock); - for (i = 0; i < pool->size; ++i) { + for (i = 0; i < size; ++i) { struct ibmvfc_event *evt = &pool->events[i]; atomic_set(&evt->free, 1); @@ -5013,6 +5017,7 @@ static int ibmvfc_alloc_queue(struct ibmvfc_host *vhost, { struct device *dev = vhost->dev; size_t fmt_size; + unsigned int pool_size = 0; ENTER; spin_lock_init(&queue->_lock); @@ -5021,10 +5026,7 @@ static int ibmvfc_alloc_queue(struct ibmvfc_host *vhost, switch (fmt) { case IBMVFC_CRQ_FMT: fmt_size = sizeof(*queue->msgs.crq); - if (ibmvfc_init_event_pool(vhost, queue)) { - dev_err(dev, "Couldn't initialize event pool.\n"); - return -ENOMEM; - } + pool_size = max_requests + IBMVFC_NUM_INTERNAL_REQ; break; case IBMVFC_ASYNC_FMT: fmt_size = sizeof(*queue->msgs.async); @@ -5034,6 +5036,11 @@ static int ibmvfc_alloc_queue(struct ibmvfc_host *vhost, return -EINVAL; } + if (ibmvfc_init_event_pool(vhost, queue, pool_size)) { + dev_err(dev, "Couldn't initialize event pool.\n"); + return -ENOMEM; + } + queue->msgs.handle = (void *)get_zeroed_page(GFP_KERNEL); if (!queue->msgs.handle) return -ENOMEM; -- 2.27.0
next prev parent reply other threads:[~2021-01-12 0:49 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 ` Tyrel Datwyler [this message] 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 ` 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 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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