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,
Brian King <brking@linux.vnet.ibm.com>,
brking@linux.ibm.com, linuxppc-dev@lists.ozlabs.org
Subject: [PATCH v5 05/21] ibmvfc: define hcall wrapper for registering a Sub-CRQ
Date: Thu, 14 Jan 2021 14:31:32 -0600 [thread overview]
Message-ID: <20210114203148.246656-6-tyreld@linux.ibm.com> (raw)
In-Reply-To: <20210114203148.246656-1-tyreld@linux.ibm.com>
Sub-CRQs are registred with firmware via a hypercall. Abstract that
interface into a simpler helper function.
Signed-off-by: Tyrel Datwyler <tyreld@linux.ibm.com>
Reviewed-by: Brian King <brking@linux.vnet.ibm.com>
---
drivers/scsi/ibmvscsi/ibmvfc.c | 14 ++++++++++++++
1 file changed, 14 insertions(+)
diff --git a/drivers/scsi/ibmvscsi/ibmvfc.c b/drivers/scsi/ibmvscsi/ibmvfc.c
index 524e81164d70..612c7f3d7bd3 100644
--- a/drivers/scsi/ibmvscsi/ibmvfc.c
+++ b/drivers/scsi/ibmvscsi/ibmvfc.c
@@ -138,6 +138,20 @@ static void ibmvfc_tgt_move_login(struct ibmvfc_target *);
static const char *unknown_error = "unknown error";
+static long h_reg_sub_crq(unsigned long unit_address, unsigned long ioba,
+ unsigned long length, unsigned long *cookie,
+ unsigned long *irq)
+{
+ unsigned long retbuf[PLPAR_HCALL_BUFSIZE];
+ long rc;
+
+ rc = plpar_hcall(H_REG_SUB_CRQ, retbuf, unit_address, ioba, length);
+ *cookie = retbuf[0];
+ *irq = retbuf[1];
+
+ return rc;
+}
+
static int ibmvfc_check_caps(struct ibmvfc_host *vhost, unsigned long cap_flags)
{
u64 host_caps = be64_to_cpu(vhost->login_buf->resp.capabilities);
--
2.27.0
next prev parent reply other threads:[~2021-01-14 20:46 UTC|newest]
Thread overview: 27+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-01-14 20:31 [PATCH v5 00/21] ibmvfc: initial MQ development/enablement Tyrel Datwyler
2021-01-14 20:31 ` [PATCH v5 01/21] ibmvfc: add vhost fields and defaults for MQ enablement Tyrel Datwyler
2021-01-14 20:31 ` [PATCH v5 02/21] ibmvfc: move event pool init/free routines Tyrel Datwyler
2021-01-14 20:31 ` [PATCH v5 03/21] ibmvfc: init/free event pool during queue allocation/free Tyrel Datwyler
2021-01-14 20:31 ` [PATCH v5 04/21] ibmvfc: add size parameter to ibmvfc_init_event_pool Tyrel Datwyler
2021-01-14 20:31 ` Tyrel Datwyler [this message]
2021-01-14 20:31 ` [PATCH v5 06/21] ibmvfc: add Subordinate CRQ definitions Tyrel Datwyler
2021-01-14 20:31 ` [PATCH v5 07/21] ibmvfc: add alloc/dealloc routines for SCSI Sub-CRQ Channels Tyrel Datwyler
2021-01-14 20:31 ` [PATCH v5 08/21] ibmvfc: add Sub-CRQ IRQ enable/disable routine Tyrel Datwyler
2021-01-14 20:31 ` [PATCH v5 09/21] ibmvfc: add handlers to drain and complete Sub-CRQ responses Tyrel Datwyler
2021-01-14 20:31 ` [PATCH v5 10/21] ibmvfc: define Sub-CRQ interrupt handler routine Tyrel Datwyler
2021-01-14 20:31 ` [PATCH v5 11/21] ibmvfc: map/request irq and register Sub-CRQ interrupt handler Tyrel Datwyler
2021-01-14 20:31 ` [PATCH v5 12/21] ibmvfc: implement channel enquiry and setup commands Tyrel Datwyler
2021-01-14 20:31 ` [PATCH v5 13/21] ibmvfc: advertise client support for using hardware channels Tyrel Datwyler
2021-01-14 20:31 ` [PATCH v5 14/21] ibmvfc: set and track hw queue in ibmvfc_event struct Tyrel Datwyler
2021-01-14 20:31 ` [PATCH v5 15/21] ibmvfc: send commands down HW Sub-CRQ when channelized Tyrel Datwyler
2021-01-14 20:31 ` [PATCH v5 16/21] ibmvfc: register Sub-CRQ handles with VIOS during channel setup Tyrel Datwyler
2021-01-14 20:31 ` [PATCH v5 17/21] ibmvfc: add cancel mad initialization helper Tyrel Datwyler
2021-01-14 20:31 ` [PATCH v5 18/21] ibmvfc: send Cancel MAD down each hw scsi channel Tyrel Datwyler
2021-01-14 22:42 ` Brian King
2021-01-14 20:31 ` [PATCH v5 19/21] ibmvfc: purge scsi channels after transport loss/reset Tyrel Datwyler
2021-01-14 20:31 ` [PATCH v5 20/21] ibmvfc: enable MQ and set reasonable defaults Tyrel Datwyler
2021-01-14 20:31 ` [PATCH v5 21/21] ibmvfc: provide modules parameters for MQ settings Tyrel Datwyler
2021-01-14 22:44 ` Brian King
2021-01-14 22:47 ` [PATCH v5 00/21] ibmvfc: initial MQ development/enablement Brian King
2021-01-15 3:31 ` Martin K. Petersen
2021-01-21 3:34 ` Martin K. Petersen
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