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
next prev parent reply other threads:[~2020-12-03 2:12 UTC|newest]
Thread overview: 27+ 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 ` [PATCH v3 01/18] ibmvfc: add vhost fields and defaults for MQ enablement Tyrel Datwyler
2020-12-03 2:07 ` Tyrel Datwyler [this message]
2020-12-03 2:07 ` [PATCH v3 03/18] ibmvfc: add Subordinate CRQ definitions Tyrel Datwyler
2020-12-03 2:07 ` [PATCH v3 04/18] ibmvfc: add alloc/dealloc routines for SCSI Sub-CRQ Channels Tyrel Datwyler
2020-12-04 14:47 ` Brian King
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 ` [PATCH v3 06/18] ibmvfc: add handlers to drain and complete Sub-CRQ responses Tyrel Datwyler
2020-12-04 14:51 ` Brian King
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 ` [PATCH v3 08/18] ibmvfc: map/request irq and register Sub-CRQ interrupt handler 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 ` [PATCH v3 10/18] ibmvfc: advertise client support for using hardware channels 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 2:08 ` [PATCH v3 12/18] ibmvfc: send commands down HW Sub-CRQ when channelized 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 ` [PATCH v3 14/18] ibmvfc: add cancel mad initialization helper Tyrel Datwyler
2020-12-03 2:08 ` [PATCH v3 15/18] ibmvfc: send Cancel MAD down each hw scsi channel Tyrel Datwyler
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 ` [PATCH v3 17/18] ibmvfc: provide modules parameters for MQ settings Tyrel Datwyler
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
2020-12-04 21:35 ` Brian King
2020-12-05 0:20 ` Tyrel Datwyler
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=20201203020806.14747-3-tyreld@linux.ibm.com \
--to=tyreld@linux.ibm.com \
--cc=brking@linux.ibm.com \
--cc=brking@linux.vnet.ibm.com \
--cc=james.bottomley@hansenpartnership.com \
--cc=linux-kernel@vger.kernel.org \
--cc=linux-scsi@vger.kernel.org \
--cc=linuxppc-dev@lists.ozlabs.org \
--cc=martin.petersen@oracle.com \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).