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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>,
	Brian King <brking@linux.vnet.ibm.com>
Subject: [PATCH v3 02/18] ibmvfc: define hcall wrapper for registering a Sub-CRQ
Date: Wed,  2 Dec 2020 20:07:50 -0600	[thread overview]
Message-ID: <20201203020806.14747-3-tyreld@linux.ibm.com> (raw)
In-Reply-To: <20201203020806.14747-1-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 f1d677a7423d..64674054dbae 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


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,
	Brian King <brking@linux.vnet.ibm.com>,
	brking@linux.ibm.com, linuxppc-dev@lists.ozlabs.org
Subject: [PATCH v3 02/18] ibmvfc: define hcall wrapper for registering a Sub-CRQ
Date: Wed,  2 Dec 2020 20:07:50 -0600	[thread overview]
Message-ID: <20201203020806.14747-3-tyreld@linux.ibm.com> (raw)
In-Reply-To: <20201203020806.14747-1-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 f1d677a7423d..64674054dbae 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


  parent reply	other threads:[~2020-12-03  2:09 UTC|newest]

Thread overview: 54+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-12-03  2:07 [PATCH v3 00/18] ibmvfc: initial MQ development Tyrel Datwyler
2020-12-03  2:07 ` Tyrel Datwyler
2020-12-03  2:07 ` [PATCH v3 01/18] ibmvfc: add vhost fields and defaults for MQ enablement Tyrel Datwyler
2020-12-03  2:07   ` Tyrel Datwyler
2020-12-03  2:07 ` Tyrel Datwyler [this message]
2020-12-03  2:07   ` [PATCH v3 02/18] ibmvfc: define hcall wrapper for registering a Sub-CRQ Tyrel Datwyler
2020-12-03  2:07 ` [PATCH v3 03/18] ibmvfc: add Subordinate CRQ definitions Tyrel Datwyler
2020-12-03  2:07   ` Tyrel Datwyler
2020-12-03  2:07 ` [PATCH v3 04/18] ibmvfc: add alloc/dealloc routines for SCSI Sub-CRQ Channels Tyrel Datwyler
2020-12-03  2:07   ` Tyrel Datwyler
2020-12-04 14:47   ` Brian King
2020-12-04 14:47     ` Brian King
2020-12-05  0:15     ` Tyrel Datwyler
2020-12-05  0:15       ` Tyrel Datwyler
2020-12-03  2:07 ` [PATCH v3 05/18] ibmvfc: add Sub-CRQ IRQ enable/disable routine Tyrel Datwyler
2020-12-03  2:07   ` Tyrel Datwyler
2020-12-03  2:07 ` [PATCH v3 06/18] ibmvfc: add handlers to drain and complete Sub-CRQ responses Tyrel Datwyler
2020-12-03  2:07   ` Tyrel Datwyler
2020-12-04 14:51   ` Brian King
2020-12-04 14:51     ` Brian King
2020-12-05  0:16     ` Tyrel Datwyler
2020-12-05  0:16       ` Tyrel Datwyler
2020-12-03  2:07 ` [PATCH v3 07/18] ibmvfc: define Sub-CRQ interrupt handler routine Tyrel Datwyler
2020-12-03  2:07   ` Tyrel Datwyler
2020-12-03  2:07 ` [PATCH v3 08/18] ibmvfc: map/request irq and register Sub-CRQ interrupt handler Tyrel Datwyler
2020-12-03  2:07   ` Tyrel Datwyler
2020-12-03  2:07 ` [PATCH v3 09/18] ibmvfc: implement channel enquiry and setup commands Tyrel Datwyler
2020-12-03  2:07   ` Tyrel Datwyler
2020-12-03  2:07 ` [PATCH v3 10/18] ibmvfc: advertise client support for using hardware channels Tyrel Datwyler
2020-12-03  2:07   ` Tyrel Datwyler
2020-12-03  2:07 ` [PATCH v3 11/18] ibmvfc: set and track hw queue in ibmvfc_event struct Tyrel Datwyler
2020-12-03  2:07   ` Tyrel Datwyler
2020-12-03  2:08 ` [PATCH v3 12/18] ibmvfc: send commands down HW Sub-CRQ when channelized Tyrel Datwyler
2020-12-03  2:08   ` Tyrel Datwyler
2020-12-03  2:08 ` [PATCH v3 13/18] ibmvfc: register Sub-CRQ handles with VIOS during channel setup Tyrel Datwyler
2020-12-03  2:08   ` Tyrel Datwyler
2020-12-03  2:08 ` [PATCH v3 14/18] ibmvfc: add cancel mad initialization helper Tyrel Datwyler
2020-12-03  2:08   ` Tyrel Datwyler
2020-12-03  2:08 ` [PATCH v3 15/18] ibmvfc: send Cancel MAD down each hw scsi channel Tyrel Datwyler
2020-12-03  2:08   ` Tyrel Datwyler
2020-12-04 21:26   ` Brian King
2020-12-04 21:26     ` Brian King
2020-12-03  2:08 ` [PATCH v3 16/18] ibmvfc: enable MQ and set reasonable defaults Tyrel Datwyler
2020-12-03  2:08   ` Tyrel Datwyler
2020-12-03  2:08 ` [PATCH v3 17/18] ibmvfc: provide modules parameters for MQ settings Tyrel Datwyler
2020-12-03  2:08   ` Tyrel Datwyler
2020-12-04 21:28   ` Brian King
2020-12-04 21:28     ` Brian King
2020-12-03  2:08 ` [PATCH v3 18/18] ibmvfc: drop host lock when completing commands in CRQ Tyrel Datwyler
2020-12-03  2:08   ` Tyrel Datwyler
2020-12-04 21:35   ` Brian King
2020-12-04 21:35     ` Brian King
2020-12-05  0:20     ` Tyrel Datwyler
2020-12-05  0:20       ` Tyrel Datwyler

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