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 06/21] ibmvfc: add Subordinate CRQ definitions Date: Mon, 11 Jan 2021 17:12:10 -0600 [thread overview] Message-ID: <20210111231225.105347-7-tyreld@linux.ibm.com> (raw) In-Reply-To: <20210111231225.105347-1-tyreld@linux.ibm.com> Subordinate Command Response Queues (Sub CRQ) are used in conjunction with the primary CRQ when more than one queue is needed by the virtual IO adapter. Recent phyp firmware versions support Sub CRQ's with ibmvfc adapters. This feature is a prerequisite for supporting multiple hardware backed submission queues in the vfc adapter. The Sub CRQ command element differs from the standard CRQ in that it is 32bytes long as opposed to 16bytes for the latter. Despite this extra 16bytes the ibmvfc protocol will use the original CRQ command element mapped to the first 16bytes of the Sub CRQ element initially. Add definitions for the Sub CRQ command element and queue. Signed-off-by: Tyrel Datwyler <tyreld@linux.ibm.com> --- drivers/scsi/ibmvscsi/ibmvfc.h | 21 +++++++++++++++++++++ 1 file changed, 21 insertions(+) diff --git a/drivers/scsi/ibmvscsi/ibmvfc.h b/drivers/scsi/ibmvscsi/ibmvfc.h index dd6d89292867..b9eed05c165f 100644 --- a/drivers/scsi/ibmvscsi/ibmvfc.h +++ b/drivers/scsi/ibmvscsi/ibmvfc.h @@ -650,6 +650,11 @@ struct ibmvfc_crq { volatile __be64 ioba; } __packed __aligned(8); +struct ibmvfc_sub_crq { + struct ibmvfc_crq crq; + __be64 reserved[2]; +} __packed __aligned(8); + enum ibmvfc_ae_link_state { IBMVFC_AE_LS_LINK_UP = 0x01, IBMVFC_AE_LS_LINK_BOUNCED = 0x02, @@ -761,12 +766,14 @@ struct ibmvfc_event_pool { enum ibmvfc_msg_fmt { IBMVFC_CRQ_FMT = 0, IBMVFC_ASYNC_FMT, + IBMVFC_SUB_CRQ_FMT, }; union ibmvfc_msgs { void *handle; struct ibmvfc_crq *crq; struct ibmvfc_async_crq *async; + struct ibmvfc_sub_crq *scrq; }; struct ibmvfc_queue { @@ -781,6 +788,20 @@ struct ibmvfc_queue { struct list_head sent; struct list_head free; spinlock_t l_lock; + + /* Sub-CRQ fields */ + struct ibmvfc_host *vhost; + unsigned long cookie; + unsigned long vios_cookie; + unsigned long hw_irq; + unsigned long irq; + unsigned long hwq_id; + char name[32]; +}; + +struct ibmvfc_scsi_channels { + struct ibmvfc_queue *scrqs; + unsigned int active_queues; }; enum ibmvfc_host_action { -- 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 06/21] ibmvfc: add Subordinate CRQ definitions Date: Mon, 11 Jan 2021 17:12:10 -0600 [thread overview] Message-ID: <20210111231225.105347-7-tyreld@linux.ibm.com> (raw) In-Reply-To: <20210111231225.105347-1-tyreld@linux.ibm.com> Subordinate Command Response Queues (Sub CRQ) are used in conjunction with the primary CRQ when more than one queue is needed by the virtual IO adapter. Recent phyp firmware versions support Sub CRQ's with ibmvfc adapters. This feature is a prerequisite for supporting multiple hardware backed submission queues in the vfc adapter. The Sub CRQ command element differs from the standard CRQ in that it is 32bytes long as opposed to 16bytes for the latter. Despite this extra 16bytes the ibmvfc protocol will use the original CRQ command element mapped to the first 16bytes of the Sub CRQ element initially. Add definitions for the Sub CRQ command element and queue. Signed-off-by: Tyrel Datwyler <tyreld@linux.ibm.com> --- drivers/scsi/ibmvscsi/ibmvfc.h | 21 +++++++++++++++++++++ 1 file changed, 21 insertions(+) diff --git a/drivers/scsi/ibmvscsi/ibmvfc.h b/drivers/scsi/ibmvscsi/ibmvfc.h index dd6d89292867..b9eed05c165f 100644 --- a/drivers/scsi/ibmvscsi/ibmvfc.h +++ b/drivers/scsi/ibmvscsi/ibmvfc.h @@ -650,6 +650,11 @@ struct ibmvfc_crq { volatile __be64 ioba; } __packed __aligned(8); +struct ibmvfc_sub_crq { + struct ibmvfc_crq crq; + __be64 reserved[2]; +} __packed __aligned(8); + enum ibmvfc_ae_link_state { IBMVFC_AE_LS_LINK_UP = 0x01, IBMVFC_AE_LS_LINK_BOUNCED = 0x02, @@ -761,12 +766,14 @@ struct ibmvfc_event_pool { enum ibmvfc_msg_fmt { IBMVFC_CRQ_FMT = 0, IBMVFC_ASYNC_FMT, + IBMVFC_SUB_CRQ_FMT, }; union ibmvfc_msgs { void *handle; struct ibmvfc_crq *crq; struct ibmvfc_async_crq *async; + struct ibmvfc_sub_crq *scrq; }; struct ibmvfc_queue { @@ -781,6 +788,20 @@ struct ibmvfc_queue { struct list_head sent; struct list_head free; spinlock_t l_lock; + + /* Sub-CRQ fields */ + struct ibmvfc_host *vhost; + unsigned long cookie; + unsigned long vios_cookie; + unsigned long hw_irq; + unsigned long irq; + unsigned long hwq_id; + char name[32]; +}; + +struct ibmvfc_scsi_channels { + struct ibmvfc_queue *scrqs; + unsigned int active_queues; }; enum ibmvfc_host_action { -- 2.27.0
next prev parent reply other threads:[~2021-01-12 0:51 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 ` Tyrel Datwyler [this message] 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 ` 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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