RDMA/ocrdma: Query and initalize the PFC SL
This patch implements routine to query the PFC priority from the
adapter port.
Following are the changes implemented:
* A new FW command is implemented to query the operational/admin DCBX
configuration from the FW and obtain active priority(service
level).
* Adds support for the async event reported by FW when the PFC
priority changes. Service level is re-initialized during modify_qp
or create_ah, based on this event.
* Maintain SL value in ocrdma_dev structure and refer that as and
when needed.
Signed-off-by: Devesh Sharma <devesh.sharma@emulex.com>
Signed-off-by: Selvin Xavier <selvin.xavier@emulex.com>
Signed-off-by: Roland Dreier <roland@purestorage.com>
diff --git a/drivers/infiniband/hw/ocrdma/ocrdma.h b/drivers/infiniband/hw/ocrdma/ocrdma.h
index 19011db..5cd65c2 100644
--- a/drivers/infiniband/hw/ocrdma/ocrdma.h
+++ b/drivers/infiniband/hw/ocrdma/ocrdma.h
@@ -236,6 +236,9 @@
struct rcu_head rcu;
int id;
u64 stag_arr[OCRDMA_MAX_STAG];
+ u8 sl; /* service level */
+ bool pfc_state;
+ atomic_t update_sl;
u16 pvid;
u32 asic_id;
@@ -518,4 +521,22 @@
OCRDMA_SLI_ASIC_GEN_NUM_SHIFT;
}
+static inline u8 ocrdma_get_pfc_prio(u8 *pfc, u8 prio)
+{
+ return *(pfc + prio);
+}
+
+static inline u8 ocrdma_get_app_prio(u8 *app_prio, u8 prio)
+{
+ return *(app_prio + prio);
+}
+
+static inline u8 ocrdma_is_enabled_and_synced(u32 state)
+{ /* May also be used to interpret TC-state, QCN-state
+ * Appl-state and Logical-link-state in future.
+ */
+ return (state & OCRDMA_STATE_FLAG_ENABLED) &&
+ (state & OCRDMA_STATE_FLAG_SYNC);
+}
+
#endif