IB/rdmavt: Add R and S flags for queue pairs

Use the flags originally provided for hfi1 in the rdmavt driver. These will
be made available to drivers in the qp header file.

Reviewed-by: Harish Chegondi <harish.chegondi@intel.com>
Reviewed-by: Mike Marciniszyn <mike.marciniszyn@intel.com>
Signed-off-by: Dennis Dalessandro <dennis.dalessandro@intel.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>

diff --git a/include/rdma/rdmavt_qp.h b/include/rdma/rdmavt_qp.h
index e6a7d17..1aa8b5b 100644 (file)
--- a/include/rdma/rdmavt_qp.h
+++ b/include/rdma/rdmavt_qp.h
@@ -48,6 +48,86 @@
  *
  */
 
+#include <rdma/ib_pack.h>
+/*
+ * Atomic bit definitions for r_aflags.
+ */
+#define RVT_R_WRID_VALID        0
+#define RVT_R_REWIND_SGE        1
+
+/*
+ * Bit definitions for r_flags.
+ */
+#define RVT_R_REUSE_SGE 0x01
+#define RVT_R_RDMAR_SEQ 0x02
+#define RVT_R_RSP_NAK   0x04
+#define RVT_R_RSP_SEND  0x08
+#define RVT_R_COMM_EST  0x10
+
+/*
+ * Bit definitions for s_flags.
+ *
+ * RVT_S_SIGNAL_REQ_WR - set if QP send WRs contain completion signaled
+ * RVT_S_BUSY - send tasklet is processing the QP
+ * RVT_S_TIMER - the RC retry timer is active
+ * RVT_S_ACK_PENDING - an ACK is waiting to be sent after RDMA read/atomics
+ * RVT_S_WAIT_FENCE - waiting for all prior RDMA read or atomic SWQEs
+ *                         before processing the next SWQE
+ * RVT_S_WAIT_RDMAR - waiting for a RDMA read or atomic SWQE to complete
+ *                         before processing the next SWQE
+ * RVT_S_WAIT_RNR - waiting for RNR timeout
+ * RVT_S_WAIT_SSN_CREDIT - waiting for RC credits to process next SWQE
+ * RVT_S_WAIT_DMA - waiting for send DMA queue to drain before generating
+ *                  next send completion entry not via send DMA
+ * RVT_S_WAIT_PIO - waiting for a send buffer to be available
+ * RVT_S_WAIT_TX - waiting for a struct verbs_txreq to be available
+ * RVT_S_WAIT_DMA_DESC - waiting for DMA descriptors to be available
+ * RVT_S_WAIT_KMEM - waiting for kernel memory to be available
+ * RVT_S_WAIT_PSN - waiting for a packet to exit the send DMA queue
+ * RVT_S_WAIT_ACK - waiting for an ACK packet before sending more requests
+ * RVT_S_SEND_ONE - send one packet, request ACK, then wait for ACK
+ * RVT_S_ECN - a BECN was queued to the send engine
+ */
+#define RVT_S_SIGNAL_REQ_WR    0x0001
+#define RVT_S_BUSY             0x0002
+#define RVT_S_TIMER            0x0004
+#define RVT_S_RESP_PENDING     0x0008
+#define RVT_S_ACK_PENDING      0x0010
+#define RVT_S_WAIT_FENCE       0x0020
+#define RVT_S_WAIT_RDMAR       0x0040
+#define RVT_S_WAIT_RNR         0x0080
+#define RVT_S_WAIT_SSN_CREDIT  0x0100
+#define RVT_S_WAIT_DMA         0x0200
+#define RVT_S_WAIT_PIO         0x0400
+#define RVT_S_WAIT_TX          0x0800
+#define RVT_S_WAIT_DMA_DESC    0x1000
+#define RVT_S_WAIT_KMEM                0x2000
+#define RVT_S_WAIT_PSN         0x4000
+#define RVT_S_WAIT_ACK         0x8000
+#define RVT_S_SEND_ONE         0x10000
+#define RVT_S_UNLIMITED_CREDIT 0x20000
+#define RVT_S_AHG_VALID                0x40000
+#define RVT_S_AHG_CLEAR                0x80000
+#define RVT_S_ECN              0x100000
+
+/*
+ * Wait flags that would prevent any packet type from being sent.
+ */
+#define RVT_S_ANY_WAIT_IO (RVT_S_WAIT_PIO | RVT_S_WAIT_TX | \
+       RVT_S_WAIT_DMA_DESC | RVT_S_WAIT_KMEM)
+
+/*
+ * Wait flags that would prevent send work requests from making progress.
+ */
+#define RVT_S_ANY_WAIT_SEND (RVT_S_WAIT_FENCE | RVT_S_WAIT_RDMAR | \
+       RVT_S_WAIT_RNR | RVT_S_WAIT_SSN_CREDIT | RVT_S_WAIT_DMA | \
+       RVT_S_WAIT_PSN | RVT_S_WAIT_ACK)
+
+#define RVT_S_ANY_WAIT (RVT_S_ANY_WAIT_IO | RVT_S_ANY_WAIT_SEND)
+
+/* Number of bits to pay attention to in the opcode for checking qp type */
+#define RVT_OPCODE_QP_MASK 0xE0
+
 /*
  * Send work request queue entry.
  * The size of the sg_list is determined when the QP is created and stored