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, brking@linux.ibm.com,
linuxppc-dev@lists.ozlabs.org
Subject: [PATCH v2 5/6] ibmvfc: add support for targetWWPN field in v2 MADs and vfcFrame
Date: Tue, 17 Nov 2020 13:16:35 -0600 [thread overview]
Message-ID: <20201117191636.131127-6-tyreld@linux.ibm.com> (raw)
In-Reply-To: <20201117191636.131127-1-tyreld@linux.ibm.com>
Several version 2 MADs and the version 2 vfcFrame structures introduced
a new targetWWPN field for better identification of the target then
simply the scsi_id.
Set this field and MAD versioning fields when the VIOS advertises the
IBMVFC_HANDLE_VF_WWPN capability.
Signed-off-by: Tyrel Datwyler <tyreld@linux.ibm.com>
---
drivers/scsi/ibmvscsi/ibmvfc.c | 39 ++++++++++++++++++++++++++++------
1 file changed, 33 insertions(+), 6 deletions(-)
diff --git a/drivers/scsi/ibmvscsi/ibmvfc.c b/drivers/scsi/ibmvscsi/ibmvfc.c
index 4549cdee2cc0..9efc39b60cf7 100644
--- a/drivers/scsi/ibmvscsi/ibmvfc.c
+++ b/drivers/scsi/ibmvscsi/ibmvfc.c
@@ -1683,9 +1683,10 @@ static struct ibmvfc_cmd *ibmvfc_init_vfc_cmd(struct ibmvfc_event *evt, struct s
size_t offset;
memset(vfc_cmd, 0, sizeof(*vfc_cmd));
- if (be64_to_cpu(vhost->login_buf->resp.capabilities) & IBMVFC_HANDLE_VF_WWPN)
+ if (ibmvfc_check_caps(vhost, IBMVFC_HANDLE_VF_WWPN)) {
offset = offsetof(struct ibmvfc_cmd, v2.rsp);
- else
+ vfc_cmd->targetWWPN = cpu_to_be64(rport->port_name);
+ } else
offset = offsetof(struct ibmvfc_cmd, v1.rsp);
vfc_cmd->resp.va = cpu_to_be64(be64_to_cpu(evt->crq.ioba) + offset);
vfc_cmd->resp.len = cpu_to_be32(sizeof(*rsp));
@@ -2062,6 +2063,7 @@ static int ibmvfc_bsg_request(struct bsg_job *job)
static int ibmvfc_reset_device(struct scsi_device *sdev, int type, char *desc)
{
struct ibmvfc_host *vhost = shost_priv(sdev->host);
+ struct fc_rport *rport = starget_to_rport(scsi_target(sdev));
struct ibmvfc_cmd *tmf;
struct ibmvfc_event *evt = NULL;
union ibmvfc_iu rsp_iu;
@@ -2079,6 +2081,8 @@ static int ibmvfc_reset_device(struct scsi_device *sdev, int type, char *desc)
iu = ibmvfc_get_fcp_iu(vhost, tmf);
tmf->flags = cpu_to_be16((IBMVFC_NO_MEM_DESC | IBMVFC_TMF));
+ if (ibmvfc_check_caps(vhost, IBMVFC_HANDLE_VF_WWPN))
+ tmf->targetWWPN = cpu_to_be64(rport->port_name);
iu->tmf_flags = type;
evt->sync_iu = &rsp_iu;
@@ -2269,7 +2273,12 @@ static int ibmvfc_cancel_all(struct scsi_device *sdev, int type)
tmf = &evt->iu.tmf;
memset(tmf, 0, sizeof(*tmf));
- tmf->common.version = cpu_to_be32(1);
+ if (ibmvfc_check_caps(vhost, IBMVFC_HANDLE_VF_WWPN)) {
+ tmf->common.version = cpu_to_be32(2);
+ tmf->targetWWPN = 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);
@@ -2369,6 +2378,7 @@ static int ibmvfc_match_evt(struct ibmvfc_event *evt, void *match)
static int ibmvfc_abort_task_set(struct scsi_device *sdev)
{
struct ibmvfc_host *vhost = shost_priv(sdev->host);
+ struct fc_rport *rport = starget_to_rport(scsi_target(sdev));
struct ibmvfc_cmd *tmf;
struct ibmvfc_event *evt, *found_evt;
union ibmvfc_iu rsp_iu;
@@ -2400,6 +2410,8 @@ static int ibmvfc_abort_task_set(struct scsi_device *sdev)
tmf = ibmvfc_init_vfc_cmd(evt, sdev);
iu = ibmvfc_get_fcp_iu(vhost, tmf);
+ if (ibmvfc_check_caps(vhost, IBMVFC_HANDLE_VF_WWPN))
+ tmf->targetWWPN = cpu_to_be64(rport->port_name);
iu->tmf_flags = IBMVFC_ABORT_TASK_SET;
tmf->flags = cpu_to_be16((IBMVFC_NO_MEM_DESC | IBMVFC_TMF));
evt->sync_iu = &rsp_iu;
@@ -3481,7 +3493,12 @@ static void ibmvfc_tgt_send_prli(struct ibmvfc_target *tgt)
evt->tgt = tgt;
prli = &evt->iu.prli;
memset(prli, 0, sizeof(*prli));
- prli->common.version = cpu_to_be32(1);
+ if (ibmvfc_check_caps(vhost, IBMVFC_HANDLE_VF_WWPN)) {
+ prli->common.version = cpu_to_be32(2);
+ prli->targetWWPN = cpu_to_be64(tgt->wwpn);
+ } else {
+ prli->common.version = cpu_to_be32(1);
+ }
prli->common.opcode = cpu_to_be32(IBMVFC_PROCESS_LOGIN);
prli->common.length = cpu_to_be16(sizeof(*prli));
prli->scsi_id = cpu_to_be64(tgt->scsi_id);
@@ -3584,7 +3601,12 @@ static void ibmvfc_tgt_send_plogi(struct ibmvfc_target *tgt)
evt->tgt = tgt;
plogi = &evt->iu.plogi;
memset(plogi, 0, sizeof(*plogi));
- plogi->common.version = cpu_to_be32(1);
+ if (ibmvfc_check_caps(vhost, IBMVFC_HANDLE_VF_WWPN)) {
+ plogi->common.version = cpu_to_be32(2);
+ plogi->targetWWPN = cpu_to_be64(tgt->wwpn);
+ } else {
+ plogi->common.version = cpu_to_be32(1);
+ }
plogi->common.opcode = cpu_to_be32(IBMVFC_PORT_LOGIN);
plogi->common.length = cpu_to_be16(sizeof(*plogi));
plogi->scsi_id = cpu_to_be64(tgt->scsi_id);
@@ -3984,7 +4006,12 @@ static void ibmvfc_adisc_timeout(struct timer_list *t)
evt->tgt = tgt;
tmf = &evt->iu.tmf;
memset(tmf, 0, sizeof(*tmf));
- tmf->common.version = cpu_to_be32(1);
+ if (ibmvfc_check_caps(vhost, IBMVFC_HANDLE_VF_WWPN)) {
+ tmf->common.version = cpu_to_be32(2);
+ tmf->targetWWPN = cpu_to_be64(tgt->wwpn);
+ } 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(tgt->scsi_id);
--
2.27.0
next prev parent reply other threads:[~2020-11-17 19:29 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-11-17 19:16 [PATCH v2 0/6] ibmvfc: Protocol definition updates and new targetWWPN Support Tyrel Datwyler
2020-11-17 19:16 ` [PATCH v2 1/6] ibmvfc: deduplicate common ibmvfc_cmd init code Tyrel Datwyler
2020-11-17 19:16 ` [PATCH v2 2/6] ibmvfc: add new fields for version 2 of several MADs Tyrel Datwyler
2020-11-17 19:16 ` [PATCH v2 3/6] ibmvfc: add helper for testing capability flags Tyrel Datwyler
2020-11-17 19:16 ` [PATCH v2 4/6] ibmvfc: add FC payload retrieval routines for versioned vfcFrames Tyrel Datwyler
2020-11-17 19:16 ` Tyrel Datwyler [this message]
2020-11-17 19:16 ` [PATCH v2 6/6] ibmvfc: advertise client support for targetWWPN using v2 commands Tyrel Datwyler
2020-11-18 0:42 ` [PATCH v2 0/6] ibmvfc: Protocol definition updates and new targetWWPN Support Tyrel Datwyler
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