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 02/13] ibmvfc: define hcall wrapper for registering a Sub-CRQ
Date: Wed, 25 Nov 2020 19:48:13 -0600 [thread overview]
Message-ID: <20201126014824.123831-3-tyreld@linux.ibm.com> (raw)
In-Reply-To: <20201126014824.123831-1-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>
---
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 cd609d19e6a1..260b82e3cc01 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:[~2020-11-26 1:49 UTC|newest]
Thread overview: 33+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-11-26 1:48 [PATCH 00/13] ibmvfc: initial MQ development Tyrel Datwyler
2020-11-26 1:48 ` [PATCH 01/13] ibmvfc: add vhost fields and defaults for MQ enablement Tyrel Datwyler
2020-11-27 17:45 ` Brian King
2020-11-30 17:22 ` Tyrel Datwyler
2020-11-26 1:48 ` Tyrel Datwyler [this message]
2020-11-27 17:45 ` [PATCH 02/13] ibmvfc: define hcall wrapper for registering a Sub-CRQ Brian King
2020-11-26 1:48 ` [PATCH 03/13] ibmvfc: add Subordinate CRQ definitions Tyrel Datwyler
2020-11-27 17:46 ` Brian King
2020-11-26 1:48 ` [PATCH 04/13] ibmvfc: add alloc/dealloc routines for SCSI Sub-CRQ Channels Tyrel Datwyler
2020-11-27 17:46 ` Brian King
2020-11-30 17:26 ` Tyrel Datwyler
2020-11-26 1:48 ` [PATCH 05/13] ibmvfc: add Sub-CRQ IRQ enable/disable routine Tyrel Datwyler
2020-11-27 17:47 ` Brian King
2020-11-26 1:48 ` [PATCH 06/13] ibmvfc: add handlers to drain and complete Sub-CRQ responses Tyrel Datwyler
2020-11-27 17:47 ` Brian King
2020-11-30 17:27 ` Tyrel Datwyler
2020-11-26 1:48 ` [PATCH 07/13] ibmvfc: define Sub-CRQ interrupt handler routine Tyrel Datwyler
2020-11-27 17:48 ` Brian King
2020-11-26 1:48 ` [PATCH 08/13] ibmvfc: map/request irq and register Sub-CRQ interrupt handler Tyrel Datwyler
2020-11-27 17:48 ` Brian King
2020-11-26 1:48 ` [PATCH 09/13] ibmvfc: implement channel enquiry and setup commands Tyrel Datwyler
2020-11-27 17:49 ` Brian King
2020-11-30 17:29 ` Tyrel Datwyler
2020-11-26 1:48 ` [PATCH 10/13] ibmvfc: advertise client support for using hardware channels Tyrel Datwyler
2020-11-27 17:49 ` Brian King
2020-11-26 1:48 ` [PATCH 11/13] ibmvfc: set and track hw queue in ibmvfc_event struct Tyrel Datwyler
2020-11-27 17:50 ` Brian King
2020-11-26 1:48 ` [PATCH 12/13] ibmvfc: send commands down HW Sub-CRQ when channelized Tyrel Datwyler
2020-11-27 17:50 ` Brian King
2020-11-26 1:48 ` [PATCH 13/13] ibmvfc: register Sub-CRQ handles with VIOS during channel setup Tyrel Datwyler
2020-11-27 17:50 ` Brian King
2020-12-02 12:03 ` [PATCH 00/13] ibmvfc: initial MQ development Hannes Reinecke
2020-12-02 17:19 ` Tyrel Datwyler
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