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 v2 14/17] ibmvfc: add cancel mad initialization helper
Date: Tue, 1 Dec 2020 18:53:26 -0600 [thread overview]
Message-ID: <20201202005329.4538-15-tyreld@linux.ibm.com> (raw)
In-Reply-To: <20201202005329.4538-1-tyreld@linux.ibm.com>
Add a helper routine for initializing a Cancel MAD. This will be useful
for a channelized client that needs to send a Cancel commands down every
channel commands were sent for a particular LUN.
Signed-off-by: Tyrel Datwyler <tyreld@linux.ibm.com>
---
drivers/scsi/ibmvscsi/ibmvfc.c | 67 ++++++++++++++++++++--------------
1 file changed, 39 insertions(+), 28 deletions(-)
diff --git a/drivers/scsi/ibmvscsi/ibmvfc.c b/drivers/scsi/ibmvscsi/ibmvfc.c
index c1ac2acba5fd..0b6284020f06 100644
--- a/drivers/scsi/ibmvscsi/ibmvfc.c
+++ b/drivers/scsi/ibmvscsi/ibmvfc.c
@@ -2286,6 +2286,44 @@ static int ibmvfc_wait_for_ops(struct ibmvfc_host *vhost, void *device,
return SUCCESS;
}
+static struct ibmvfc_event *ibmvfc_init_tmf(struct ibmvfc_host *vhost,
+ struct scsi_device *sdev,
+ int type)
+{
+ struct scsi_target *starget = scsi_target(sdev);
+ struct fc_rport *rport = starget_to_rport(starget);
+ struct ibmvfc_event *evt;
+ struct ibmvfc_tmf *tmf;
+
+ evt = ibmvfc_get_event(vhost);
+ ibmvfc_init_event(evt, ibmvfc_sync_completion, IBMVFC_MAD_FORMAT);
+
+ tmf = &evt->iu.tmf;
+ memset(tmf, 0, sizeof(*tmf));
+ if (ibmvfc_check_caps(vhost, IBMVFC_HANDLE_VF_WWPN)) {
+ tmf->common.version = cpu_to_be32(2);
+ tmf->target_wwpn = cpu_to_be64(rport->port_name);
+ } else {
+ tmf->common.version = cpu_to_be32(1);
+ }
+ tmf->common.opcode = cpu_to_be32(IBMVFC_TMF_MAD);
+ tmf->common.length = cpu_to_be16(sizeof(*tmf));
+ tmf->scsi_id = cpu_to_be64(rport->port_id);
+ int_to_scsilun(sdev->lun, &tmf->lun);
+ if (!ibmvfc_check_caps(vhost, IBMVFC_CAN_SUPPRESS_ABTS))
+ type &= ~IBMVFC_TMF_SUPPRESS_ABTS;
+ if (vhost->state == IBMVFC_ACTIVE)
+ tmf->flags = cpu_to_be32((type | IBMVFC_TMF_LUA_VALID));
+ else
+ tmf->flags = cpu_to_be32(((type & IBMVFC_TMF_SUPPRESS_ABTS) | IBMVFC_TMF_LUA_VALID));
+ tmf->cancel_key = cpu_to_be32((unsigned long)sdev->hostdata);
+ tmf->my_cancel_key = cpu_to_be32((unsigned long)starget->hostdata);
+
+ init_completion(&evt->comp);
+
+ return evt;
+}
+
/**
* ibmvfc_cancel_all - Cancel all outstanding commands to the device
* @sdev: scsi device to cancel commands
@@ -2300,9 +2338,6 @@ static int ibmvfc_wait_for_ops(struct ibmvfc_host *vhost, void *device,
static int ibmvfc_cancel_all(struct scsi_device *sdev, int type)
{
struct ibmvfc_host *vhost = shost_priv(sdev->host);
- struct scsi_target *starget = scsi_target(sdev);
- struct fc_rport *rport = starget_to_rport(starget);
- struct ibmvfc_tmf *tmf;
struct ibmvfc_event *evt, *found_evt;
union ibmvfc_iu rsp;
int rsp_rc = -EBUSY;
@@ -2327,32 +2362,8 @@ static int ibmvfc_cancel_all(struct scsi_device *sdev, int type)
}
if (vhost->logged_in) {
- evt = ibmvfc_get_event(vhost);
- ibmvfc_init_event(evt, ibmvfc_sync_completion, IBMVFC_MAD_FORMAT);
-
- tmf = &evt->iu.tmf;
- memset(tmf, 0, sizeof(*tmf));
- if (ibmvfc_check_caps(vhost, IBMVFC_HANDLE_VF_WWPN)) {
- tmf->common.version = cpu_to_be32(2);
- tmf->target_wwpn = cpu_to_be64(rport->port_name);
- } else {
- tmf->common.version = cpu_to_be32(1);
- }
- tmf->common.opcode = cpu_to_be32(IBMVFC_TMF_MAD);
- tmf->common.length = cpu_to_be16(sizeof(*tmf));
- tmf->scsi_id = cpu_to_be64(rport->port_id);
- int_to_scsilun(sdev->lun, &tmf->lun);
- if (!ibmvfc_check_caps(vhost, IBMVFC_CAN_SUPPRESS_ABTS))
- type &= ~IBMVFC_TMF_SUPPRESS_ABTS;
- if (vhost->state == IBMVFC_ACTIVE)
- tmf->flags = cpu_to_be32((type | IBMVFC_TMF_LUA_VALID));
- else
- tmf->flags = cpu_to_be32(((type & IBMVFC_TMF_SUPPRESS_ABTS) | IBMVFC_TMF_LUA_VALID));
- tmf->cancel_key = cpu_to_be32((unsigned long)sdev->hostdata);
- tmf->my_cancel_key = cpu_to_be32((unsigned long)starget->hostdata);
-
+ evt = ibmvfc_init_tmf(vhost, sdev, type);
evt->sync_iu = &rsp;
- init_completion(&evt->comp);
rsp_rc = ibmvfc_send_event(evt, vhost, default_timeout);
}
--
2.27.0
next prev parent reply other threads:[~2020-12-02 0:54 UTC|newest]
Thread overview: 36+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-12-02 0:53 [PATCH v2 00/17] ibmvfc: initial MQ development Tyrel Datwyler
2020-12-02 0:53 ` [PATCH v2 01/17] ibmvfc: add vhost fields and defaults for MQ enablement Tyrel Datwyler
2020-12-02 15:14 ` Brian King
2020-12-02 17:27 ` Tyrel Datwyler
2020-12-04 14:26 ` Brian King
2020-12-07 11:56 ` Hannes Reinecke
2020-12-08 22:37 ` Tyrel Datwyler
2020-12-17 11:49 ` John Garry
2020-12-02 0:53 ` [PATCH v2 02/17] ibmvfc: define hcall wrapper for registering a Sub-CRQ Tyrel Datwyler
2020-12-02 0:53 ` [PATCH v2 03/17] ibmvfc: add Subordinate CRQ definitions Tyrel Datwyler
2020-12-02 0:53 ` [PATCH v2 04/17] ibmvfc: add alloc/dealloc routines for SCSI Sub-CRQ Channels Tyrel Datwyler
2020-12-02 15:25 ` Brian King
2020-12-02 22:23 ` Tyrel Datwyler
2020-12-02 0:53 ` [PATCH v2 05/17] ibmvfc: add Sub-CRQ IRQ enable/disable routine Tyrel Datwyler
2020-12-02 0:53 ` [PATCH v2 06/17] ibmvfc: add handlers to drain and complete Sub-CRQ responses Tyrel Datwyler
2020-12-02 15:46 ` Brian King
2020-12-02 22:28 ` Tyrel Datwyler
2020-12-02 15:56 ` Brian King
2020-12-02 0:53 ` [PATCH v2 07/17] ibmvfc: define Sub-CRQ interrupt handler routine Tyrel Datwyler
2020-12-02 0:53 ` [PATCH v2 08/17] ibmvfc: map/request irq and register Sub-CRQ interrupt handler Tyrel Datwyler
2020-12-02 0:53 ` [PATCH v2 09/17] ibmvfc: implement channel enquiry and setup commands Tyrel Datwyler
2020-12-02 15:51 ` Brian King
2020-12-02 0:53 ` [PATCH v2 10/17] ibmvfc: advertise client support for using hardware channels Tyrel Datwyler
2020-12-02 0:53 ` [PATCH v2 11/17] ibmvfc: set and track hw queue in ibmvfc_event struct Tyrel Datwyler
2020-12-02 0:53 ` [PATCH v2 12/17] ibmvfc: send commands down HW Sub-CRQ when channelized Tyrel Datwyler
2020-12-02 0:53 ` [PATCH v2 13/17] ibmvfc: register Sub-CRQ handles with VIOS during channel setup Tyrel Datwyler
2020-12-02 0:53 ` Tyrel Datwyler [this message]
2020-12-02 16:00 ` [PATCH v2 14/17] ibmvfc: add cancel mad initialization helper Brian King
2020-12-02 0:53 ` [PATCH v2 15/17] ibmvfc: send Cancel MAD down each hw scsi channel Tyrel Datwyler
2020-12-02 18:27 ` Brian King
2020-12-02 22:09 ` Tyrel Datwyler
2020-12-02 0:53 ` [PATCH v2 16/17] ibmvfc: enable MQ and set reasonable defaults Tyrel Datwyler
2020-12-02 18:31 ` Brian King
2020-12-02 0:53 ` [PATCH v2 17/17] ibmvfc: provide modules parameters for MQ settings Tyrel Datwyler
2020-12-02 18:40 ` Brian King
2020-12-02 22:17 ` Tyrel Datwyler
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