[PATCH v11 06/11] scsi: ibmvfc: add FPIN extended flag and async sub-CRQ queue handle

[Tyrel Datwyler <tyreld@linux.ibm.com>]

From: Dave Marquardt <davemarq@linux.ibm.com>

Add IBMVFC_ASYNC_IS_FPIN_EXT flag bit (0x02) to ibmvfc_async_sub_crq.flags
to distinguish extended FPIN events from standard ones.

Add async_scrqs field of type ibmvfc_channels to ibmvfc_host to hold the
channel set for the asynchronous sub-CRQ, alongside the existing scsi_scrqs
and nvme_scrqs channels. This uses the same ibmvfc_channels infrastructure
as the SCSI and NVMe channel queues.

Add IBMVFC_ASYNC_SUB_CRQ_FMT to enum ibmvfc_msg_fmt and a corresponding
async_scrq pointer to union ibmvfc_msgs to support the new async sub-CRQ
message format.

Signed-off-by: Dave Marquardt <davemarq@linux.ibm.com>
Signed-off-by: Tyrel Datwyler <tyreld@linux.ibm.com>
---
 drivers/scsi/ibmvscsi/ibmvfc.h | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/drivers/scsi/ibmvscsi/ibmvfc.h b/drivers/scsi/ibmvscsi/ibmvfc.h
index d7a30e7a4a28..df2f312fd7b9 100644
--- a/drivers/scsi/ibmvscsi/ibmvfc.h
+++ b/drivers/scsi/ibmvscsi/ibmvfc.h
@@ -773,6 +773,7 @@ struct ibmvfc_async_sub_crq {
 	volatile u8 valid;
 	u8 flags;
 #define IBMVFC_ASYNC_ID_IS_ASSOC_ID	0x01
+#define IBMVFC_ASYNC_IS_FPIN_EXT	0x02
 	u8 link_state;
 	u8 fpin_status;
 	__be16 event;
@@ -893,6 +894,7 @@ enum ibmvfc_msg_fmt {
 	IBMVFC_CRQ_FMT = 0,
 	IBMVFC_ASYNC_FMT,
 	IBMVFC_SUB_CRQ_FMT,
+	IBMVFC_ASYNC_SUB_CRQ_FMT,
 };
 
 union ibmvfc_msgs {
@@ -900,6 +902,7 @@ union ibmvfc_msgs {
 	struct ibmvfc_crq *crq;
 	struct ibmvfc_async_crq *async;
 	struct ibmvfc_sub_crq *scrq;
+	struct ibmvfc_async_sub_crq *async_scrq;
 };
 
 struct ibmvfc_queue {
@@ -992,6 +995,7 @@ struct ibmvfc_host {
 	struct ibmvfc_queue async_crq;
 	struct ibmvfc_channels scsi_scrqs;
 	struct ibmvfc_channels nvme_scrqs;
+	struct ibmvfc_channels async_scrqs;
 	struct ibmvfc_npiv_login login_info;
 	union ibmvfc_npiv_login_data *login_buf;
 	dma_addr_t login_buf_dma;
-- 
2.55.0