RDMA/nes: Support for Packed And Unaligned fpdus
Support for Packed and Unaligned (PAU) FPDUs is needed for
interoperability between NES and non-NES nodes. When the NES hardware
detects a PAU frame, it will pass it to the driver to process the
frame. NES driver creates a new frame for each FPDU and forwards it
to the hardware to be sent to its associated qp.
Signed-off-by: Tatyana Nikolova <Tatyana.E.Nikolova@intel.com>
Signed-off-by: Faisal Latif <Faisal.Latif@intel.com>
Signed-off-by: Roland Dreier <roland@purestorage.com>
diff --git a/drivers/infiniband/hw/nes/nes_cm.c b/drivers/infiniband/hw/nes/nes_cm.c
index c118663..401b7bb 100644
--- a/drivers/infiniband/hw/nes/nes_cm.c
+++ b/drivers/infiniband/hw/nes/nes_cm.c
@@ -159,6 +159,15 @@
atomic_t cm_connect_reqs;
atomic_t cm_rejects;
+int nes_add_ref_cm_node(struct nes_cm_node *cm_node)
+{
+ return add_ref_cm_node(cm_node);
+}
+
+int nes_rem_ref_cm_node(struct nes_cm_node *cm_node)
+{
+ return rem_ref_cm_node(cm_node->cm_core, cm_node);
+}
/**
* create_event
@@ -2331,9 +2340,13 @@
}
add_ref_cm_node(cm_node);
} else if (cm_node->state == NES_CM_STATE_TSA) {
- rem_ref_cm_node(cm_core, cm_node);
- atomic_inc(&cm_accel_dropped_pkts);
- dev_kfree_skb_any(skb);
+ if (cm_node->nesqp->pau_mode)
+ nes_queue_mgt_skbs(skb, nesvnic, cm_node->nesqp);
+ else {
+ rem_ref_cm_node(cm_core, cm_node);
+ atomic_inc(&cm_accel_dropped_pkts);
+ dev_kfree_skb_any(skb);
+ }
break;
}
skb_reset_network_header(skb);