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 12/13] ibmvfc: send commands down HW Sub-CRQ when channelized
Date: Wed, 25 Nov 2020 19:48:23 -0600 [thread overview]
Message-ID: <20201126014824.123831-13-tyreld@linux.ibm.com> (raw)
In-Reply-To: <20201126014824.123831-1-tyreld@linux.ibm.com>
When the client has negotiated the use of channels all vfcFrames are
required to go down a Sub-CRQ channel or it is a protocoal violation. If
the adapter state is channelized submit vfcFrames to the appropriate
Sub-CRQ via the h_send_sub_crq() helper.
Signed-off-by: Tyrel Datwyler <tyreld@linux.ibm.com>
---
drivers/scsi/ibmvscsi/ibmvfc.c | 22 ++++++++++++++++++++--
1 file changed, 20 insertions(+), 2 deletions(-)
diff --git a/drivers/scsi/ibmvscsi/ibmvfc.c b/drivers/scsi/ibmvscsi/ibmvfc.c
index f686c2cb0de2..897e3236534d 100644
--- a/drivers/scsi/ibmvscsi/ibmvfc.c
+++ b/drivers/scsi/ibmvscsi/ibmvfc.c
@@ -701,6 +701,15 @@ static int ibmvfc_send_crq(struct ibmvfc_host *vhost, u64 word1, u64 word2)
return plpar_hcall_norets(H_SEND_CRQ, vdev->unit_address, word1, word2);
}
+static int ibmvfc_send_sub_crq(struct ibmvfc_host *vhost, u64 cookie, u64 word1,
+ u64 word2, u64 word3, u64 word4)
+{
+ struct vio_dev *vdev = to_vio_dev(vhost->dev);
+
+ return plpar_hcall_norets(H_SEND_SUB_CRQ, vdev->unit_address, cookie,
+ word1, word2, word3, word4);
+}
+
/**
* ibmvfc_send_crq_init - Send a CRQ init message
* @vhost: ibmvfc host struct
@@ -1524,8 +1533,17 @@ static int ibmvfc_send_event(struct ibmvfc_event *evt,
mb();
- if ((rc = ibmvfc_send_crq(vhost, be64_to_cpu(crq_as_u64[0]),
- be64_to_cpu(crq_as_u64[1])))) {
+ if (vhost->using_channels && evt->crq.format == IBMVFC_CMD_FORMAT)
+ rc = ibmvfc_send_sub_crq(vhost,
+ vhost->scsi_scrqs.scrqs[evt->hwq].vios_cookie,
+ be64_to_cpu(crq_as_u64[0]),
+ be64_to_cpu(crq_as_u64[1]),
+ 0, 0);
+ else
+ rc = ibmvfc_send_crq(vhost, be64_to_cpu(crq_as_u64[0]),
+ be64_to_cpu(crq_as_u64[1]));
+
+ if (rc) {
list_del(&evt->queue);
del_timer(&evt->timer);
--
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 ` [PATCH 02/13] ibmvfc: define hcall wrapper for registering a Sub-CRQ Tyrel Datwyler
2020-11-27 17:45 ` 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 ` Tyrel Datwyler [this message]
2020-11-27 17:50 ` [PATCH 12/13] ibmvfc: send commands down HW Sub-CRQ when channelized 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
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=20201126014824.123831-13-tyreld@linux.ibm.com \
--to=tyreld@linux.ibm.com \
--cc=brking@linux.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).