[SCSI] bfa: Added Fabric Assigned Address(FAA) support
- Updated/added data structures and definitions to support FAA protocol.
- Modified the IOC state machine to support FAA.
- Introduced FAA feature configuration - enable/disable/query.
Signed-off-by: Krishna Gudipati <kgudipat@brocade.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
diff --git a/drivers/scsi/bfa/bfa_core.c b/drivers/scsi/bfa/bfa_core.c
index 2b49724..4befbf9 100644
--- a/drivers/scsi/bfa/bfa_core.c
+++ b/drivers/scsi/bfa/bfa_core.c
@@ -795,6 +795,181 @@
}
}
+/* Fabric Assigned Address specific functions */
+
+/*
+ * Check whether IOC is ready before sending command down
+ */
+static bfa_status_t
+bfa_faa_validate_request(struct bfa_s *bfa)
+{
+ enum bfa_ioc_type_e ioc_type = bfa_get_type(bfa);
+ u32 card_type = bfa->ioc.attr->card_type;
+
+ if (bfa_ioc_is_operational(&bfa->ioc)) {
+ if ((ioc_type != BFA_IOC_TYPE_FC) || bfa_mfg_is_mezz(card_type))
+ return BFA_STATUS_FEATURE_NOT_SUPPORTED;
+ } else {
+ if (!bfa_ioc_is_acq_addr(&bfa->ioc))
+ return BFA_STATUS_IOC_NON_OP;
+ }
+
+ return BFA_STATUS_OK;
+}
+
+bfa_status_t
+bfa_faa_enable(struct bfa_s *bfa, bfa_cb_iocfc_t cbfn, void *cbarg)
+{
+ struct bfi_faa_en_dis_s faa_enable_req;
+ struct bfa_iocfc_s *iocfc = &bfa->iocfc;
+ bfa_status_t status;
+
+ iocfc->faa_args.faa_cb.faa_cbfn = cbfn;
+ iocfc->faa_args.faa_cb.faa_cbarg = cbarg;
+
+ status = bfa_faa_validate_request(bfa);
+ if (status != BFA_STATUS_OK)
+ return status;
+
+ if (iocfc->faa_args.busy == BFA_TRUE)
+ return BFA_STATUS_DEVBUSY;
+
+ if (iocfc->faa_args.faa_state == BFA_FAA_ENABLED)
+ return BFA_STATUS_FAA_ENABLED;
+
+ if (bfa_fcport_is_trunk_enabled(bfa))
+ return BFA_STATUS_ERROR_TRUNK_ENABLED;
+
+ bfa_fcport_cfg_faa(bfa, BFA_FAA_ENABLED);
+ iocfc->faa_args.busy = BFA_TRUE;
+
+ memset(&faa_enable_req, 0, sizeof(struct bfi_faa_en_dis_s));
+ bfi_h2i_set(faa_enable_req.mh, BFI_MC_IOCFC,
+ BFI_IOCFC_H2I_FAA_ENABLE_REQ, bfa_lpuid(bfa));
+
+ bfa_ioc_mbox_send(&bfa->ioc, &faa_enable_req,
+ sizeof(struct bfi_faa_en_dis_s));
+
+ return BFA_STATUS_OK;
+}
+
+bfa_status_t
+bfa_faa_disable(struct bfa_s *bfa, bfa_cb_iocfc_t cbfn,
+ void *cbarg)
+{
+ struct bfi_faa_en_dis_s faa_disable_req;
+ struct bfa_iocfc_s *iocfc = &bfa->iocfc;
+ bfa_status_t status;
+
+ iocfc->faa_args.faa_cb.faa_cbfn = cbfn;
+ iocfc->faa_args.faa_cb.faa_cbarg = cbarg;
+
+ status = bfa_faa_validate_request(bfa);
+ if (status != BFA_STATUS_OK)
+ return status;
+
+ if (iocfc->faa_args.busy == BFA_TRUE)
+ return BFA_STATUS_DEVBUSY;
+
+ if (iocfc->faa_args.faa_state == BFA_FAA_DISABLED)
+ return BFA_STATUS_FAA_DISABLED;
+
+ bfa_fcport_cfg_faa(bfa, BFA_FAA_DISABLED);
+ iocfc->faa_args.busy = BFA_TRUE;
+
+ memset(&faa_disable_req, 0, sizeof(struct bfi_faa_en_dis_s));
+ bfi_h2i_set(faa_disable_req.mh, BFI_MC_IOCFC,
+ BFI_IOCFC_H2I_FAA_DISABLE_REQ, bfa_lpuid(bfa));
+
+ bfa_ioc_mbox_send(&bfa->ioc, &faa_disable_req,
+ sizeof(struct bfi_faa_en_dis_s));
+
+ return BFA_STATUS_OK;
+}
+
+bfa_status_t
+bfa_faa_query(struct bfa_s *bfa, struct bfa_faa_attr_s *attr,
+ bfa_cb_iocfc_t cbfn, void *cbarg)
+{
+ struct bfi_faa_query_s faa_attr_req;
+ struct bfa_iocfc_s *iocfc = &bfa->iocfc;
+ bfa_status_t status;
+
+ iocfc->faa_args.faa_attr = attr;
+ iocfc->faa_args.faa_cb.faa_cbfn = cbfn;
+ iocfc->faa_args.faa_cb.faa_cbarg = cbarg;
+
+ status = bfa_faa_validate_request(bfa);
+ if (status != BFA_STATUS_OK)
+ return status;
+
+ if (iocfc->faa_args.busy == BFA_TRUE)
+ return BFA_STATUS_DEVBUSY;
+
+ iocfc->faa_args.busy = BFA_TRUE;
+ memset(&faa_attr_req, 0, sizeof(struct bfi_faa_query_s));
+ bfi_h2i_set(faa_attr_req.mh, BFI_MC_IOCFC,
+ BFI_IOCFC_H2I_FAA_QUERY_REQ, bfa_lpuid(bfa));
+
+ bfa_ioc_mbox_send(&bfa->ioc, &faa_attr_req,
+ sizeof(struct bfi_faa_query_s));
+
+ return BFA_STATUS_OK;
+}
+
+/*
+ * FAA enable response
+ */
+static void
+bfa_faa_enable_reply(struct bfa_iocfc_s *iocfc,
+ struct bfi_faa_en_dis_rsp_s *rsp)
+{
+ void *cbarg = iocfc->faa_args.faa_cb.faa_cbarg;
+ bfa_status_t status = rsp->status;
+
+ WARN_ON(!iocfc->faa_args.faa_cb.faa_cbfn);
+
+ iocfc->faa_args.faa_cb.faa_cbfn(cbarg, status);
+ iocfc->faa_args.busy = BFA_FALSE;
+}
+
+/*
+ * FAA disable response
+ */
+static void
+bfa_faa_disable_reply(struct bfa_iocfc_s *iocfc,
+ struct bfi_faa_en_dis_rsp_s *rsp)
+{
+ void *cbarg = iocfc->faa_args.faa_cb.faa_cbarg;
+ bfa_status_t status = rsp->status;
+
+ WARN_ON(!iocfc->faa_args.faa_cb.faa_cbfn);
+
+ iocfc->faa_args.faa_cb.faa_cbfn(cbarg, status);
+ iocfc->faa_args.busy = BFA_FALSE;
+}
+
+/*
+ * FAA query response
+ */
+static void
+bfa_faa_query_reply(struct bfa_iocfc_s *iocfc,
+ bfi_faa_query_rsp_t *rsp)
+{
+ void *cbarg = iocfc->faa_args.faa_cb.faa_cbarg;
+
+ if (iocfc->faa_args.faa_attr) {
+ iocfc->faa_args.faa_attr->faa = rsp->faa;
+ iocfc->faa_args.faa_attr->faa_state = rsp->faa_status;
+ iocfc->faa_args.faa_attr->pwwn_source = rsp->addr_source;
+ }
+
+ WARN_ON(!iocfc->faa_args.faa_cb.faa_cbfn);
+
+ iocfc->faa_args.faa_cb.faa_cbfn(cbarg, BFA_STATUS_OK);
+ iocfc->faa_args.busy = BFA_FALSE;
+}
+
/*
* IOC enable request is complete
*/
@@ -803,6 +978,12 @@
{
struct bfa_s *bfa = bfa_arg;
+ if (status == BFA_STATUS_FAA_ACQ_ADDR) {
+ bfa_cb_queue(bfa, &bfa->iocfc.init_hcb_qe,
+ bfa_iocfc_init_cb, bfa);
+ return;
+ }
+
if (status != BFA_STATUS_OK) {
bfa_isr_disable(bfa);
if (bfa->iocfc.action == BFA_IOCFC_ACT_INIT)
@@ -968,6 +1149,17 @@
case BFI_IOCFC_I2H_UPDATEQ_RSP:
iocfc->updateq_cbfn(iocfc->updateq_cbarg, BFA_STATUS_OK);
break;
+ case BFI_IOCFC_I2H_FAA_ENABLE_RSP:
+ bfa_faa_enable_reply(iocfc,
+ (struct bfi_faa_en_dis_rsp_s *)msg);
+ break;
+ case BFI_IOCFC_I2H_FAA_DISABLE_RSP:
+ bfa_faa_disable_reply(iocfc,
+ (struct bfi_faa_en_dis_rsp_s *)msg);
+ break;
+ case BFI_IOCFC_I2H_FAA_QUERY_RSP:
+ bfa_faa_query_reply(iocfc, (bfi_faa_query_rsp_t *)msg);
+ break;
default:
WARN_ON(1);
}